diff --git a/.clang-format b/.clang-format new file mode 100644 index 000000000..63f29c0be --- /dev/null +++ b/.clang-format @@ -0,0 +1,22 @@ +Language: Cpp +BasedOnStyle: LLVM + +AccessModifierOffset: -2 +AlignConsecutiveMacros: true +AllowAllArgumentsOnNextLine: false +AllowAllParametersOfDeclarationOnNextLine: false +AllowShortIfStatementsOnASingleLine: false +AllowShortLambdasOnASingleLine: Inline +BinPackArguments: false +ColumnLimit: 0 +ContinuationIndentWidth: 2 +FixNamespaceComments: false +IndentAccessModifiers: true +IndentCaseLabels: true +IndentPPDirectives: BeforeHash +IndentWidth: 2 +NamespaceIndentation: All +PointerAlignment: Left +ReferenceAlignment: Left +TabWidth: 2 +UseTab: Never diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md new file mode 100644 index 000000000..f068df301 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/bug_report.md @@ -0,0 +1,40 @@ +--- +name: Bug report +about: Only for bugs founds in the library! Otherwise, please go to the discussions section! +title: "[BUG]" +labels: triage +assignees: "" +--- + +**Only for bugs found in the library! Otherwise, please go to the [discussions section](https://github.com/ESP32Async/ESPAsyncWebServer/discussions)!** + +**Please make sure to go through the recommendations before opening a bug report:** + +[https://github.com/ESP32Async/ESPAsyncWebServer?tab=readme-ov-file#important-recommendations](https://github.com/ESP32Async/ESPAsyncWebServer?tab=readme-ov-file#important-recommendations) + +**Description** + +_A clear and concise description of what the bug is._ + +**Link:** _A link to your source code where the issue happens_ + +**Board**: _esp32dev, esp32s3, ?_ + +**Ethernet adapter used ?** _If yes, please specify which one_ + +**Stack trace** + +Please provide a **decoded stack trace** taken with `monitor_filters = esp32_exception_decoder`. +**Any issue opened with a non readable stack trace will be ignored because not helpful at all.** + +As an alternative, you can use [https://maximeborges.github.io/esp-stacktrace-decoder/](https://maximeborges.github.io/esp-stacktrace-decoder/). + +**Additional notes** + +Add any other context about the problem here. + +# WARNING + +**ANY ISSUE POSTED WITH AN ENCODED STACK TRACE WILL BE CLOSED !** + +**PLEASE MAKE THE EFFORT TO DECODE YOUR STACK TRACE** diff --git a/.github/ISSUE_TEMPLATE/question.md b/.github/ISSUE_TEMPLATE/question.md new file mode 100644 index 000000000..0fee7a221 --- /dev/null +++ b/.github/ISSUE_TEMPLATE/question.md @@ -0,0 +1,9 @@ +--- +name: Question +about: "For questions: please go to the discussions section!" +title: "[Q]" +labels: question +assignees: "" +--- + +**For questions: please go to the [discussions section](https://github.com/ESP32Async/ESPAsyncWebServer/discussions)!** \ No newline at end of file diff --git a/.github/dependabot.yml b/.github/dependabot.yml new file mode 100644 index 000000000..dfd0e3086 --- /dev/null +++ b/.github/dependabot.yml @@ -0,0 +1,10 @@ +# Set update schedule for GitHub Actions + +version: 2 +updates: + + - package-ecosystem: "github-actions" + directory: "/" + schedule: + # Check for updates to GitHub Actions every week + interval: "weekly" diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml new file mode 100644 index 000000000..383cb6bb2 --- /dev/null +++ b/.github/workflows/ci.yml @@ -0,0 +1,157 @@ +# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json + +name: Build + +on: + workflow_dispatch: + push: + pull_request: + +concurrency: + group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }} + cancel-in-progress: true + +jobs: + arduino: + name: Arduino + runs-on: ubuntu-latest + strategy: + fail-fast: false + matrix: + include: + - core: esp32:esp32 + board: esp32:esp32:esp32 + index_url: https://espressif.github.io/arduino-esp32/package_esp32_index.json + # - core: esp32:esp32 + # board: esp32:esp32:esp32 + # index_url: https://espressif.github.io/arduino-esp32/package_esp32_dev_index.json + - core: esp8266:esp8266 + board: esp8266:esp8266:huzzah + index_url: https://arduino.esp8266.com/stable/package_esp8266com_index.json + - name: package_rp2040_index.json + core: rp2040:rp2040 + board: rp2040:rp2040:rpipicow + index_url: https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Arduino Lint + uses: arduino/arduino-lint-action@v2 + with: + library-manager: update + + - name: Install arduino-cli + run: curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | BINDIR=/usr/local/bin sh + + - name: Update core index + run: arduino-cli core update-index --additional-urls "${{ matrix.index_url }}" + + - name: Install core + run: arduino-cli core install --additional-urls "${{ matrix.index_url }}" ${{ matrix.core }} + + - name: Install ArduinoJson + run: arduino-cli lib install ArduinoJson + + - name: Install AsyncTCP (ESP32) + if: ${{ matrix.core == 'esp32:esp32' }} + run: ARDUINO_LIBRARY_ENABLE_UNSAFE_INSTALL=true arduino-cli lib install --git-url https://github.com/ESP32Async/AsyncTCP#v3.3.2 + + - name: Install ESPAsyncTCP (ESP8266) + if: ${{ matrix.core == 'esp8266:esp8266' }} + run: ARDUINO_LIBRARY_ENABLE_UNSAFE_INSTALL=true arduino-cli lib install --git-url https://github.com/ESP32Async/ESPAsyncTCP#v2.0.0 + + - name: Install AsyncTCP (RP2040) + if: ${{ matrix.core == 'rp2040:rp2040' }} + run: ARDUINO_LIBRARY_ENABLE_UNSAFE_INSTALL=true arduino-cli lib install --git-url https://github.com/khoih-prog/AsyncTCP_RP2040W#v1.2.0 + + - name: Build CaptivePortal + run: arduino-cli compile --library . --warnings none -b ${{ matrix.board }} "examples/CaptivePortal/CaptivePortal.ino" + + - name: Build SimpleServer + run: arduino-cli compile --library . --warnings none -b ${{ matrix.board }} "examples/SimpleServer/SimpleServer.ino" + + - name: Build Filters + run: arduino-cli compile --library . --warnings none -b ${{ matrix.board }} "examples/Filters/Filters.ino" + + - name: Build StreamFiles + run: arduino-cli compile --library . --warnings none -b ${{ matrix.board }} "examples/StreamFiles/StreamFiles.ino" + + platformio: + name: "pio:${{ matrix.env }}:${{ matrix.board }}" + runs-on: ubuntu-latest + strategy: + fail-fast: false + matrix: + include: + - env: ci-arduino-2 + board: esp32dev + - env: ci-arduino-2 + board: esp32-s2-saola-1 + - env: ci-arduino-2 + board: esp32-s3-devkitc-1 + - env: ci-arduino-2 + board: esp32-c3-devkitc-02 + + - env: ci-arduino-3 + board: esp32dev + - env: ci-arduino-3 + board: esp32-s2-saola-1 + - env: ci-arduino-3 + board: esp32-s3-devkitc-1 + - env: ci-arduino-3 + board: esp32-c3-devkitc-02 + - env: ci-arduino-3 + board: esp32-c6-devkitc-1 + - env: ci-arduino-3 + board: esp32-h2-devkitm-1 + + - env: ci-arduino-3-no-json + board: esp32dev + + - env: ci-arduino-311 + board: esp32dev + - env: ci-arduino-311 + board: esp32-s2-saola-1 + - env: ci-arduino-311 + board: esp32-s3-devkitc-1 + - env: ci-arduino-311 + board: esp32-c3-devkitc-02 + - env: ci-arduino-311 + board: esp32-c6-devkitc-1 + - env: ci-arduino-311 + board: esp32-h2-devkitm-1 + + - env: ci-esp8266 + board: huzzah + - env: ci-esp8266 + board: d1_mini + + - env: ci-raspberrypi + board: rpipicow + steps: + - name: Checkout + uses: actions/checkout@v4 + + - name: Cache PlatformIO + uses: actions/cache@v4 + with: + key: ${{ runner.os }}-pio + path: | + ~/.cache/pip + ~/.platformio + + - name: Python + uses: actions/setup-python@v5 + with: + python-version: "3.x" + + - name: Build + run: | + python -m pip install --upgrade pip + pip install --upgrade platformio + + - run: PLATFORMIO_SRC_DIR=examples/CaptivePortal PIO_BOARD=${{ matrix.board }} pio run -e ${{ matrix.env }} + - run: PLATFORMIO_SRC_DIR=examples/SimpleServer PIO_BOARD=${{ matrix.board }} pio run -e ${{ matrix.env }} + - run: PLATFORMIO_SRC_DIR=examples/Filters PIO_BOARD=${{ matrix.board }} pio run -e ${{ matrix.env }} + - run: PLATFORMIO_SRC_DIR=examples/StreamFiles PIO_BOARD=${{ matrix.board }} pio run -e ${{ matrix.env }} diff --git a/.github/workflows/stale.yaml b/.github/workflows/stale.yaml new file mode 100644 index 000000000..14ceb43c2 --- /dev/null +++ b/.github/workflows/stale.yaml @@ -0,0 +1,24 @@ +name: "Close stale issues and PRs" +on: + schedule: + - cron: "30 1 * * *" + +jobs: + stale: + runs-on: ubuntu-latest + steps: + - uses: actions/stale@v9 + with: + stale-issue-message: "This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 7 days." + stale-pr-message: "This PR is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 7 days." + close-issue-message: "This issue was closed because it has been stalled for 7 days with no activity." + close-pr-message: "This PR was closed because it has been stalled for 7 days with no activity." + days-before-issue-stale: 30 + days-before-pr-stale: 30 + days-before-issue-close: 7 + days-before-pr-close: 7 + +permissions: + # contents: write # only for delete-branch option + issues: write + pull-requests: write diff --git a/.gitignore b/.gitignore index a0f0e5386..1efbc8ec8 100644 --- a/.gitignore +++ b/.gitignore @@ -1,2 +1,5 @@ -.vscode .DS_Store +.lh +/.pio +/.vscode +/logs diff --git a/.gitpod.Dockerfile b/.gitpod.Dockerfile new file mode 100644 index 000000000..29eeb4357 --- /dev/null +++ b/.gitpod.Dockerfile @@ -0,0 +1,2 @@ +FROM gitpod/workspace-python-3.11 +USER gitpod diff --git a/.gitpod.yml b/.gitpod.yml new file mode 100644 index 000000000..2f8a4431c --- /dev/null +++ b/.gitpod.yml @@ -0,0 +1,9 @@ +tasks: + - command: pip install --upgrade pip && pip install -U platformio && platformio run + +image: + file: .gitpod.Dockerfile + +vscode: + extensions: + - shardulm94.trailing-spaces diff --git a/.travis.yml b/.travis.yml deleted file mode 100644 index 204ffe379..000000000 --- a/.travis.yml +++ /dev/null @@ -1,36 +0,0 @@ -sudo: false - -language: python - -os: - - linux - -git: - depth: false - -stages: - - build - -jobs: - include: - - - name: "Build Arduino ESP32" - if: tag IS blank AND (type = pull_request OR (type = push AND branch = master)) - stage: build - script: bash $TRAVIS_BUILD_DIR/travis/build.sh esp32 - - - name: "Build Arduino ESP8266" - if: tag IS blank AND (type = pull_request OR (type = push AND branch = master)) - stage: build - script: bash $TRAVIS_BUILD_DIR/travis/build.sh esp8266 - -notifications: - email: - on_success: change - on_failure: change - webhooks: - urls: - - https://webhooks.gitter.im/e/60e65d0c78ea0a920347 - on_success: change # options: [always|never|change] default: always - on_failure: always # options: [always|never|change] default: always - on_start: never # options: [always|never|change] default: always diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 000000000..64292eca4 --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,17 @@ +set(COMPONENT_SRCDIRS + "src" +) + +set(COMPONENT_ADD_INCLUDEDIRS + "src" +) + +set(COMPONENT_REQUIRES + "arduino-esp32" + "AsyncTCP" +) + +register_component() + +target_compile_definitions(${COMPONENT_TARGET} PUBLIC -DESP32) +target_compile_options(${COMPONENT_TARGET} PRIVATE -fno-rtti) diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md new file mode 100644 index 000000000..0a5f91417 --- /dev/null +++ b/CODE_OF_CONDUCT.md @@ -0,0 +1,129 @@ + +# Contributor Covenant Code of Conduct + +## Our Pledge + +We as members, contributors, and leaders pledge to make participation in our +community a harassment-free experience for everyone, regardless of age, body +size, visible or invisible disability, ethnicity, sex characteristics, gender +identity and expression, level of experience, education, socio-economic status, +nationality, personal appearance, race, religion, or sexual identity +and orientation. + +We pledge to act and interact in ways that contribute to an open, welcoming, +diverse, inclusive, and healthy community. + +## Our Standards + +Examples of behavior that contributes to a positive environment for our +community include: + +* Demonstrating empathy and kindness toward other people +* Being respectful of differing opinions, viewpoints, and experiences +* Giving and gracefully accepting constructive feedback +* Accepting responsibility and apologizing to those affected by our mistakes, + and learning from the experience +* Focusing on what is best not just for us as individuals, but for the + overall community + +Examples of unacceptable behavior include: + +* The use of sexualized language or imagery, and sexual attention or + advances of any kind +* Trolling, insulting or derogatory comments, and personal or political attacks +* Public or private harassment +* Publishing others' private information, such as a physical or email + address, without their explicit permission +* Other conduct which could reasonably be considered inappropriate in a + professional setting + +## Enforcement Responsibilities + +Community leaders are responsible for clarifying and enforcing our standards of +acceptable behavior and will take appropriate and fair corrective action in +response to any behavior that they deem inappropriate, threatening, offensive, +or harmful. + +Community leaders have the right and responsibility to remove, edit, or reject +comments, commits, code, wiki edits, issues, and other contributions that are +not aligned to this Code of Conduct, and will communicate reasons for moderation +decisions when appropriate. + +## Scope + +This Code of Conduct applies within all community spaces, and also applies when +an individual is officially representing the community in public spaces. +Examples of representing our community include using an official e-mail address, +posting via an official social media account, or acting as an appointed +representative at an online or offline event. + +## Enforcement + +Instances of abusive, harassing, or otherwise unacceptable behavior may be +reported to the community leaders responsible for enforcement at +https://sidweb.nl/cms3/en/contact. +All complaints will be reviewed and investigated promptly and fairly. + +All community leaders are obligated to respect the privacy and security of the +reporter of any incident. + +## Enforcement Guidelines + +Community leaders will follow these Community Impact Guidelines in determining +the consequences for any action they deem in violation of this Code of Conduct: + +### 1. Correction + +**Community Impact**: Use of inappropriate language or other behavior deemed +unprofessional or unwelcome in the community. + +**Consequence**: A private, written warning from community leaders, providing +clarity around the nature of the violation and an explanation of why the +behavior was inappropriate. A public apology may be requested. + +### 2. Warning + +**Community Impact**: A violation through a single incident or series +of actions. + +**Consequence**: A warning with consequences for continued behavior. No +interaction with the people involved, including unsolicited interaction with +those enforcing the Code of Conduct, for a specified period of time. This +includes avoiding interactions in community spaces as well as external channels +like social media. Violating these terms may lead to a temporary or +permanent ban. + +### 3. Temporary Ban + +**Community Impact**: A serious violation of community standards, including +sustained inappropriate behavior. + +**Consequence**: A temporary ban from any sort of interaction or public +communication with the community for a specified period of time. No public or +private interaction with the people involved, including unsolicited interaction +with those enforcing the Code of Conduct, is allowed during this period. +Violating these terms may lead to a permanent ban. + +### 4. Permanent Ban + +**Community Impact**: Demonstrating a pattern of violation of community +standards, including sustained inappropriate behavior, harassment of an +individual, or aggression toward or disparagement of classes of individuals. + +**Consequence**: A permanent ban from any sort of public interaction within +the community. + +## Attribution + +This Code of Conduct is adapted from the [Contributor Covenant][homepage], +version 2.0, available at +https://www.contributor-covenant.org/version/2/0/code_of_conduct.html. + +Community Impact Guidelines were inspired by [Mozilla's code of conduct +enforcement ladder](https://github.com/mozilla/diversity). + +[homepage]: https://www.contributor-covenant.org + +For answers to common questions about this code of conduct, see the FAQ at +https://www.contributor-covenant.org/faq. Translations are available at +https://www.contributor-covenant.org/translations. diff --git a/LICENSE b/LICENSE new file mode 100644 index 000000000..153d416dc --- /dev/null +++ b/LICENSE @@ -0,0 +1,165 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + + This version of the GNU Lesser General Public License incorporates +the terms and conditions of version 3 of the GNU General Public +License, supplemented by the additional permissions listed below. + + 0. Additional Definitions. + + As used herein, "this License" refers to version 3 of the GNU Lesser +General Public License, and the "GNU GPL" refers to version 3 of the GNU +General Public License. + + "The Library" refers to a covered work governed by this License, +other than an Application or a Combined Work as defined below. + + An "Application" is any work that makes use of an interface provided +by the Library, but which is not otherwise based on the Library. +Defining a subclass of a class defined by the Library is deemed a mode +of using an interface provided by the Library. + + A "Combined Work" is a work produced by combining or linking an +Application with the Library. The particular version of the Library +with which the Combined Work was made is also called the "Linked +Version". + + The "Minimal Corresponding Source" for a Combined Work means the +Corresponding Source for the Combined Work, excluding any source code +for portions of the Combined Work that, considered in isolation, are +based on the Application, and not on the Linked Version. + + The "Corresponding Application Code" for a Combined Work means the +object code and/or source code for the Application, including any data +and utility programs needed for reproducing the Combined Work from the +Application, but excluding the System Libraries of the Combined Work. + + 1. Exception to Section 3 of the GNU GPL. + + You may convey a covered work under sections 3 and 4 of this License +without being bound by section 3 of the GNU GPL. + + 2. Conveying Modified Versions. + + If you modify a copy of the Library, and, in your modifications, a +facility refers to a function or data to be supplied by an Application +that uses the facility (other than as an argument passed when the +facility is invoked), then you may convey a copy of the modified +version: + + a) under this License, provided that you make a good faith effort to + ensure that, in the event an Application does not supply the + function or data, the facility still operates, and performs + whatever part of its purpose remains meaningful, or + + b) under the GNU GPL, with none of the additional permissions of + this License applicable to that copy. + + 3. Object Code Incorporating Material from Library Header Files. + + The object code form of an Application may incorporate material from +a header file that is part of the Library. You may convey such object +code under terms of your choice, provided that, if the incorporated +material is not limited to numerical parameters, data structure +layouts and accessors, or small macros, inline functions and templates +(ten or fewer lines in length), you do both of the following: + + a) Give prominent notice with each copy of the object code that the + Library is used in it and that the Library and its use are + covered by this License. + + b) Accompany the object code with a copy of the GNU GPL and this license + document. + + 4. Combined Works. + + You may convey a Combined Work under terms of your choice that, +taken together, effectively do not restrict modification of the +portions of the Library contained in the Combined Work and reverse +engineering for debugging such modifications, if you also do each of +the following: + + a) Give prominent notice with each copy of the Combined Work that + the Library is used in it and that the Library and its use are + covered by this License. + + b) Accompany the Combined Work with a copy of the GNU GPL and this license + document. + + c) For a Combined Work that displays copyright notices during + execution, include the copyright notice for the Library among + these notices, as well as a reference directing the user to the + copies of the GNU GPL and this license document. + + d) Do one of the following: + + 0) Convey the Minimal Corresponding Source under the terms of this + License, and the Corresponding Application Code in a form + suitable for, and under terms that permit, the user to + recombine or relink the Application with a modified version of + the Linked Version to produce a modified Combined Work, in the + manner specified by section 6 of the GNU GPL for conveying + Corresponding Source. + + 1) Use a suitable shared library mechanism for linking with the + Library. 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Combined Libraries. + + You may place library facilities that are a work based on the +Library side by side in a single library together with other library +facilities that are not Applications and are not covered by this +License, and convey such a combined library under terms of your +choice, if you do both of the following: + + a) Accompany the combined library with a copy of the same work based + on the Library, uncombined with any other library facilities, + conveyed under the terms of this License. + + b) Give prominent notice with the combined library that part of it + is a work based on the Library, and explaining where to find the + accompanying uncombined form of the same work. + + 6. Revised Versions of the GNU Lesser General Public License. + + The Free Software Foundation may publish revised and/or new versions +of the GNU Lesser General Public License from time to time. Such new +versions will be similar in spirit to the present version, but may +differ in detail to address new problems or concerns. + + Each version is given a distinguishing version number. If the +Library as you received it specifies that a certain numbered version +of the GNU Lesser General Public License "or any later version" +applies to it, you have the option of following the terms and +conditions either of that published version or of any later version +published by the Free Software Foundation. If the Library as you +received it does not specify a version number of the GNU Lesser +General Public License, you may choose any version of the GNU Lesser +General Public License ever published by the Free Software Foundation. + + If the Library as you received it specifies that a proxy can decide +whether future versions of the GNU Lesser General Public License shall +apply, that proxy's public statement of acceptance of any version is +permanent authorization for you to choose that version for the +Library. \ No newline at end of file diff --git a/README.ESP32Async.md b/README.ESP32Async.md new file mode 100644 index 000000000..3f1988565 --- /dev/null +++ b/README.ESP32Async.md @@ -0,0 +1,1989 @@ +# ESPAsyncWebServer + +[![Latest Release](https://img.shields.io/github/release/ESP32Async/ESPAsyncWebServer.svg)](https://GitHub.com/ESP32Async/ESPAsyncWebServer/releases/) +[![PlatformIO Registry](https://badges.registry.platformio.org/packages/ESP32Async/library/ESPAsyncWebServer.svg)](https://registry.platformio.org/libraries/ESP32Async/ESPAsyncWebServer) + +[![License: LGPL 3.0](https://img.shields.io/badge/License-LGPL%203.0-yellow.svg)](https://opensource.org/license/lgpl-3-0/) +[![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg)](code_of_conduct.md) + +[![Build](https://github.com/ESP32Async/ESPAsyncWebServer/actions/workflows/ci.yml/badge.svg)](https://github.com/ESP32Async/ESPAsyncWebServer/actions/workflows/ci.yml) +[![GitHub latest commit](https://badgen.net/github/last-commit/ESP32Async/ESPAsyncWebServer)](https://GitHub.com/ESP32Async/ESPAsyncWebServer/commit/) +[![Gitpod Ready-to-Code](https://img.shields.io/badge/Gitpod-Ready--to--Code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/ESP32Async/ESPAsyncWebServer) + +Asynchronous HTTP and WebSocket Server Library for ESP32, ESP8266 and RP2040 +Supports: WebSocket, SSE, Authentication, Arduino Json 7, File Upload, Static File serving, URL Rewrite, URL Redirect, etc. + +This fork is based on [yubox-node-org/ESPAsyncWebServer](https://github.com/yubox-node-org/ESPAsyncWebServer) and includes all the concurrency fixes. + +- [Changes in this fork](#changes-in-this-fork) +- [Dependencies](#dependencies) +- [Performance](#performance) +- [Important recommendations for build options](#important-recommendations-for-build-options) +- [`AsyncWebSocketMessageBuffer` and `makeBuffer()`](#asyncwebsocketmessagebuffer-and-makebuffer) +- [How to replace a response](#how-to-replace-a-response) +- [How to use Middleware](#how-to-use-middleware) +- [How to use authentication with AsyncAuthenticationMiddleware](#how-to-use-authentication-with-authenticationmiddleware) +- [Migration to Middleware to improve performance and memory usage](#migration-to-middleware-to-improve-performance-and-memory-usage) +- [Original Documentation](#original-documentation) + +## Changes in this fork + +- (bug) A lot of bug fixes +- (ci) Better CI with a complete matrix of Arduino versions and boards +- (ci) Deployed in PlatformIO registry and Arduino IDE library manager +- (feat) **Arduino 3 / ESP-IDF 5** compatibility +- (feat) **ArduinoJson 7** compatibility +- (feat) **ESP32 / ESP8266 / RP2040** support +- (feat) **MessagePack** support +- (feat) **Middleware** support with pre-built middlewares for authentication, authorization, rate limiting, logging, cors, etc. +- (feat) **Request attributes** to store data on the request object +- (feat) **Response header** control and override +- (feat) **Response override**: support the ability to replace a previously sent response by another one +- (feat) **Resumable download** support using HEAD and bytes range +- (feat) `StreamConcat` example to show how to stream multiple files in one response +- (feat) Removed ESPIDF Editor (this is not the role of a web server library to do that - get the source files from the original repos if required) +- (perf) [AsyncTCPSock](https://github.com/ESP32Async/AsyncTCPSock) support: AsyncTCP can be ignored and AsyncTCPSock used instead +- (perf) `char*` overloads to avoid using `String` +- (perf) `DEFAULT_MAX_WS_CLIENTS` to change the number of allows WebSocket clients and use `cleanupClients()` to help cleanup resources about dead clients +- (perf) `setCloseClientOnQueueFull(bool)` which can be set on a client to either close the connection or discard messages but not close the connection when the queue is full +- (perf) `SSE_MAX_QUEUED_MESSAGES` to control the maximum number of messages that can be queued for a SSE client +- (perf) `WS_MAX_QUEUED_MESSAGES`: control the maximum number of messages that can be queued for a Websocket client +- (perf) in-flight buffer control and queue congestion avoidance to help to improve parallel connections handling, high volume data transfers and mitigate poor implemeneted slow user-code callbacks delayes on connctions handling +- (perf) Code size improvements +- (perf) Lot of code cleanup and optimizations +- (perf) Performance improvements in terms of memory, speed and size + +--- + +## WARNING: Important notes about future version 4.x + +This ESPAsyncWebServer fork is now at version 3.x, where we try to keep the API compatibility with original project as much as possible. + +We plan on creating a next major 4.x version that will: + +1. Drop support for ESP8266, which goes EOL in a few years +2. Drop support for Arduino 2.x and ESP-IDF 4.x. The library will be compatible with latest Arduino and ESP-IDF +3. Drop support for ArduinoJson 5.x and 6.x. The library will be compatible with latest ArduinoJson + +So if you need one of these feature, you will have to stick with the current 3.x. +All releases we do will not cease to exist: all 3.x releases will stay in the release page. +That is why we have tags and a release cycle. + +Maintaining a library for ESP8266 and RP2040 has a real cost and clearly what we see is that most users helping are on ESP32. + +If you are an ESP8266 user and want to help improve current 3.x, you are more than welcomed to contribute to this community effort. + +## Dependencies + +> [!WARNING] +> The library name was changed from `ESP Async WebServer` to `ESPAsyncWebServer` as per the Arduino Lint recommendations, but its name had to stay `ESP Async WebServer` in Arduino Registry. + +**PlatformIO / pioarduino:** + +```ini +lib_compat_mode = strict +lib_ldf_mode = chain +lib_deps = ESP32Async/ESPAsyncWebServer @ 3.6.0 +``` + +**Dependencies:** + +- **ESP32 with AsyncTCP**: `ESP32Async/AsyncTCP @ 3.3.2` + Arduino IDE: [https://github.com/ESP32Async/AsyncTCP#v3.3.2](https://github.com/ESP32Async/AsyncTCP/releases) + +- **ESP32 with AsyncTCPSock**: `https://github.com/ESP32Async/AsyncTCPSock/archive/refs/tags/v1.0.3-dev.zip` + +- **ESP8266**: `ESP32Async/ESPAsyncTCP @ 2.0.0` + Arduino IDE: [https://github.com/ESP32Async/ESPAsyncTCP#v2.0.0](https://github.com/ESP32Async/ESPAsyncTCP/releases/tag/v2.0.0) + +- **RP2040**: `khoih-prog/AsyncTCP_RP2040W @ 1.2.0` + Arduino IDE: [https://github.com/khoih-prog/AsyncTCP_RP2040W#v1.2.0](https://github.com/khoih-prog/AsyncTCP_RP2040W/releases/tag/v1.2.0) + +**AsyncTCPSock** + +AsyncTCPSock can be used instead of AsyncTCP by excluding AsyncTCP from the library dependencies and adding AsyncTCPSock instead: + +```ini +lib_compat_mode = strict +lib_ldf_mode = chain +lib_deps = + ; ESP32Async/AsyncTCP @ 3.3.2 + https://github.com/ESP32Async/AsyncTCPSock/archive/refs/tags/v1.0.3-dev.zip + ESP32Async/ESPAsyncWebServer @ 3.6.0 +lib_ignore = + AsyncTCP + ESP32Async/AsyncTCP +``` + +## Performance + +Performance of `ESP32Async/ESPAsyncWebServer @ 3.6.0`: + +```bash +> brew install autocannon +> autocannon -c 10 -w 10 -d 20 http://192.168.4.1 +``` + +With `ESP32Async/AsyncTCP @ 3.3.2` + +perf-c10 + +With `https://github.com/ESP32Async/AsyncTCPSock/archive/refs/tags/v1.0.3-dev.zip`: + +perf-c10-asynctcpsock + +**SSE performance** + +In the example, there is an endpoint `/events` with some comments showing how these metrics are calculated. + +Test is running for 20 seconds with 10 connections. + +``` +// With AsyncTCP, with 10 workers: no message discarded from the queue +// +// Total: 2038 events, 509.50 events / second +// Total: 2120 events, 530.00 events / second +// Total: 2119 events, 529.75 events / second +// Total: 2038 events, 509.50 events / second +// Total: 2037 events, 509.25 events / second +// Total: 2119 events, 529.75 events / second +// Total: 2119 events, 529.75 events / second +// Total: 2120 events, 530.00 events / second +// Total: 2038 events, 509.50 events / second +// Total: 2038 events, 509.50 events / second +// +// With AsyncTCPSock, with 10 workers: no message discarded from the queue +// +// Total: 2038 events, 509.50 events / second +// Total: 2120 events, 530.00 events / second +// Total: 2119 events, 529.75 events / second +// Total: 2038 events, 509.50 events / second +// Total: 2037 events, 509.25 events / second +// Total: 2119 events, 529.75 events / second +// Total: 2119 events, 529.75 events / second +// Total: 2120 events, 530.00 events / second +// Total: 2038 events, 509.50 events / second +// Total: 2038 events, 509.50 events / second +``` + +## Important recommendations for build options + +Most of the crashes are caused by improper use or configuration of the AsyncTCP library used for the project. +Here are some recommendations to avoid them and build-time flags you can change. + +`CONFIG_ASYNC_TCP_MAX_ACK_TIME` - defines a timeout for TCP connection to be considered alive when waiting for data. +In some bad network conditions you might consider increasing it. + +`CONFIG_ASYNC_TCP_QUEUE_SIZE` - defines the length of the queue for events related to connections handling. +Both the server and AsyncTCP library in this fork were optimized to control the queue automatically. Do NOT try blindly increasing the queue size, it does not help you in a way you might think it is. If you receive debug messages about queue throttling, try to optimize your server callbaks code to execute as fast as possible. +Read #165 thread, it might give you some hints. + +`CONFIG_ASYNC_TCP_RUNNING_CORE` - CPU core thread affinity that runs the queue events handling and executes server callbacks. Default is ANY core, so it means that for dualcore SoCs both cores could handle server activities. If your server's code is too heavy and unoptimized or you see that sometimes +server might affect other network activities, you might consider to bind it to the same core that runs Arduino code (1) to minimize affect on radio part. Otherwise you can leave the default to let RTOS decide where to run the thread based on priority + +`CONFIG_ASYNC_TCP_STACK_SIZE` - stack size for the thread that runs sever events and callbacks. Default is 16k that is a way too much waste for well-defined short async code or simple static file handling. You might want to cosider reducing it to 4-8k to same RAM usage. If you do not know what this is or not sure about your callback code demands - leave it as default, should be enough even for very hungry callbacks in most cases. + +> [!NOTE] +> This relates to ESP32 only, ESP8266 uses different ESPAsyncTCP lib that does not has this build options + +I personally use the following configuration in my projects: + +```c++ + -D CONFIG_ASYNC_TCP_MAX_ACK_TIME=5000 // (keep default) + -D CONFIG_ASYNC_TCP_PRIORITY=10 // (keep default) + -D CONFIG_ASYNC_TCP_QUEUE_SIZE=64 // (keep default) + -D CONFIG_ASYNC_TCP_RUNNING_CORE=1 // force async_tcp task to be on same core as Arduino app (default is any core) + -D CONFIG_ASYNC_TCP_STACK_SIZE=4096 // reduce the stack size (default is 16K) +``` + +## `AsyncWebSocketMessageBuffer` and `makeBuffer()` + +The fork from [yubox-node-org](https://github.com/yubox-node-org/ESPAsyncWebServer) introduces some breaking API changes compared to the original library, especially regarding the use of `std::shared_ptr>` for WebSocket. + +This fork is compatible with the original library from [me-no-dev](https://github.com/me-no-dev/ESPAsyncWebServer) regarding WebSocket, and wraps the optimizations done by `yubox-node-org` in the `AsyncWebSocketMessageBuffer` class. +So you have the choice of which API to use. + +Here are examples for serializing a Json document in a websocket message buffer: + +```cpp +void send(JsonDocument& doc) { + const size_t len = measureJson(doc); + + // original API from me-no-dev + AsyncWebSocketMessageBuffer* buffer = _ws->makeBuffer(len); + assert(buffer); // up to you to keep or remove this + serializeJson(doc, buffer->get(), len); + _ws->textAll(buffer); +} +``` + +```cpp +void send(JsonDocument& doc) { + const size_t len = measureJson(doc); + + // this fork (originally from yubox-node-org), uses another API with shared pointer + auto buffer = std::make_shared>(len); + assert(buffer); // up to you to keep or remove this + serializeJson(doc, buffer->data(), len); + _ws->textAll(std::move(buffer)); +} +``` + +I recommend to use the official API `AsyncWebSocketMessageBuffer` to retain further compatibility. + +## How to replace a response + +```c++ + // It is possible to replace a response. + // The previous one will be deleted. + // Response sending happens when the handler returns. + server.on("/replace", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/plain", "Hello, world"); + // oups! finally we want to send a different response + request->send(400, "text/plain", "validation error"); + }); +``` + +This will send error 400 instead of 200. + +## How to use Middleware + +Middleware is a way to intercept requests to perform some operations on them, like authentication, authorization, logging, etc and also act on the response headers. + +Middleware can either be attached to individual handlers, attached at the server level (thus applied to all handlers), or both. +They will be executed in the order they are attached, and they can stop the request processing by sending a response themselves. + +You can have a look at the [SimpleServer.ino](https://github.com/ESP32Async/ESPAsyncWebServer/blob/main/examples/SimpleServer/SimpleServer.ino) example for some use cases. + +For example, such middleware would handle authentication and set some attributes on the request to make them available for the next middleware and for the handler which will process the request. + +```c++ +AsyncMiddlewareFunction complexAuth([](AsyncWebServerRequest* request, ArMiddlewareNext next) { + if (!request->authenticate("user", "password")) { + return request->requestAuthentication(); + } + + request->setAttribute("user", "Mathieu"); + request->setAttribute("role", "staff"); + + next(); // continue processing + + // you can act one the response object + request->getResponse()->addHeader("X-Rate-Limit", "200"); +}); +``` + +**Here are the list of available middlewares:** + +- `AsyncMiddlewareFunction`: can convert a lambda function (`ArMiddlewareCallback`) to a middleware +- `AsyncAuthenticationMiddleware`: to handle basic/digest authentication globally or per handler +- `AsyncAuthorizationMiddleware`: to handle authorization globally or per handler +- `AsyncCorsMiddleware`: to handle CORS preflight request globally or per handler +- `AsyncHeaderFilterMiddleware`: to filter out headers from the request +- `AsyncHeaderFreeMiddleware`: to only keep some headers from the request, and remove the others +- `LoggerMiddleware`: to log requests globally or per handler with the same pattern as curl. Will also record request processing time +- `AsyncRateLimitMiddleware`: to limit the number of requests on a windows of time globally or per handler + +## How to use authentication with AsyncAuthenticationMiddleware + +Do not use the `setUsername()` and `setPassword()` methods on the hanlders anymore. +They are deprecated. +These methods were causing a copy of the username and password for each handler, which is not efficient. + +Now, you can use the `AsyncAuthenticationMiddleware` to handle authentication globally or per handler. + +```c++ +AsyncAuthenticationMiddleware authMiddleware; + +// [...] + +authMiddleware.setAuthType(AsyncAuthType::AUTH_DIGEST); +authMiddleware.setRealm("My app name"); +authMiddleware.setUsername("admin"); +authMiddleware.setPassword("admin"); +authMiddleware.setAuthFailureMessage("Authentication failed"); +authMiddleware.generateHash(); // optimization to avoid generating the hash at each request + +// [...] + +server.addMiddleware(&authMiddleware); // globally add authentication to the server + +// [...] + +myHandler.addMiddleware(&authMiddleware); // add authentication to a specific handler +``` + +## Migration to Middleware to improve performance and memory usage + +- `AsyncEventSource.authorizeConnect(...)` => do not use this method anymore: add a common `AsyncAuthorizationMiddleware` to the handler or server, and make sure to add it AFTER the `AsyncAuthenticationMiddleware` if you use authentication. +- `AsyncWebHandler.setAuthentication(...)` => do not use this method anymore: add a common `AsyncAuthenticationMiddleware` to the handler or server +- `ArUploadHandlerFunction` and `ArBodyHandlerFunction` => these callbacks receiving body data and upload and not calling anymore the authentication code for performance reasons. + These callbacks can be called multiple times during request parsing, so this is up to the user to now call the `AsyncAuthenticationMiddleware.allowed(request)` if needed and ideally when the method is called for the first time. + These callbacks are also not triggering the whole middleware chain since they are not part of the request processing workflow (they are not the final handler). + +## Original Documentation + +- [Why should you care](#why-should-you-care) +- [Important things to remember](#important-things-to-remember) +- [Principles of operation](#principles-of-operation) + - [The Async Web server](#the-async-web-server) + - [Request Life Cycle](#request-life-cycle) + - [Rewrites and how do they work](#rewrites-and-how-do-they-work) + - [Handlers and how do they work](#handlers-and-how-do-they-work) + - [Responses and how do they work](#responses-and-how-do-they-work) + - [Template processing](#template-processing) +- [Libraries and projects that use AsyncWebServer](#libraries-and-projects-that-use-asyncwebserver) +- [Request Variables](#request-variables) + - [Common Variables](#common-variables) + - [Headers](#headers) + - [GET, POST and FILE parameters](#get-post-and-file-parameters) + - [FILE Upload handling](#file-upload-handling) + - [Body data handling](#body-data-handling) + - [JSON body handling with ArduinoJson](#json-body-handling-with-arduinojson) +- [Responses](#responses) + - [Redirect to another URL](#redirect-to-another-url) + - [Basic response with HTTP Code](#basic-response-with-http-code) + - [Basic response with HTTP Code and extra headers](#basic-response-with-http-code-and-extra-headers) + - [Basic response with string content](#basic-response-with-string-content) + - [Basic response with string content and extra headers](#basic-response-with-string-content-and-extra-headers) + - [Send large webpage from PROGMEM](#send-large-webpage-from-progmem) + - [Send large webpage from PROGMEM and extra headers](#send-large-webpage-from-progmem-and-extra-headers) + - [Send large webpage from PROGMEM containing templates](#send-large-webpage-from-progmem-containing-templates) + - [Send large webpage from PROGMEM containing templates and extra headers](#send-large-webpage-from-progmem-containing-templates-and-extra-headers) + - [Send binary content from PROGMEM](#send-binary-content-from-progmem) + - [Respond with content coming from a Stream](#respond-with-content-coming-from-a-stream) + - [Respond with content coming from a Stream and extra headers](#respond-with-content-coming-from-a-stream-and-extra-headers) + - [Respond with content coming from a Stream containing templates](#respond-with-content-coming-from-a-stream-containing-templates) + - [Respond with content coming from a Stream containing templates and extra headers](#respond-with-content-coming-from-a-stream-containing-templates-and-extra-headers) + - [Respond with content coming from a File](#respond-with-content-coming-from-a-file) + - [Respond with content coming from a File and extra headers](#respond-with-content-coming-from-a-file-and-extra-headers) + - [Respond with content coming from a File containing templates](#respond-with-content-coming-from-a-file-containing-templates) + - [Respond with content using a callback](#respond-with-content-using-a-callback) + - [Respond with content using a callback and extra headers](#respond-with-content-using-a-callback-and-extra-headers) + - [Respond with file content using a callback and extra headers](#respond-with-file-content-using-a-callback-and-extra-headers) + - [Respond with content using a callback containing templates](#respond-with-content-using-a-callback-containing-templates) + - [Respond with content using a callback containing templates and extra headers](#respond-with-content-using-a-callback-containing-templates-and-extra-headers) + - [Chunked Response](#chunked-response) + - [Chunked Response containing templates](#chunked-response-containing-templates) + - [Print to response](#print-to-response) + - [ArduinoJson Basic Response](#arduinojson-basic-response) + - [ArduinoJson Advanced Response](#arduinojson-advanced-response) +- [Serving static files](#serving-static-files) + - [Serving specific file by name](#serving-specific-file-by-name) + - [Serving files in directory](#serving-files-in-directory) + - [Serving static files with authentication](#serving-static-files-with-authentication) + - [Specifying Cache-Control header](#specifying-cache-control-header) + - [Specifying Date-Modified header](#specifying-date-modified-header) + - [Specifying Template Processor callback](#specifying-template-processor-callback) + - [Serving static files by custom handling](#serving-static-files-by-custom-handling) +- [Param Rewrite With Matching](#param-rewrite-with-matching) +- [Using filters](#using-filters) + - [Serve different site files in AP mode](#serve-different-site-files-in-ap-mode) + - [Rewrite to different index on AP](#rewrite-to-different-index-on-ap) + - [Serving different hosts](#serving-different-hosts) + - [Determine interface inside callbacks](#determine-interface-inside-callbacks) +- [Bad Responses](#bad-responses) + - [Respond with content using a callback without content length to HTTP/1.0 clients](#respond-with-content-using-a-callback-without-content-length-to-http10-clients) +- [Async WebSocket Plugin](#async-websocket-plugin) + - [Async WebSocket Event](#async-websocket-event) + - [Methods for sending data to a socket client](#methods-for-sending-data-to-a-socket-client) + - [Direct access to web socket message buffer](#direct-access-to-web-socket-message-buffer) + - [Limiting the number of web socket clients](#limiting-the-number-of-web-socket-clients) +- [Async Event Source Plugin](#async-event-source-plugin) + - [Setup Event Source on the server](#setup-event-source-on-the-server) + - [Setup Event Source in the browser](#setup-event-source-in-the-browser) +- [Scanning for available WiFi Networks](#scanning-for-available-wifi-networks) +- [Remove handlers and rewrites](#remove-handlers-and-rewrites) +- [Setting up the server](#setting-up-the-server) + - [Setup global and class functions as request handlers](#setup-global-and-class-functions-as-request-handlers) + - [Methods for controlling websocket connections](#methods-for-controlling-websocket-connections) + - [Adding Default Headers](#adding-default-headers) + - [Path variable](#path-variable) + +### Why should you care + +- Using asynchronous network means that you can handle more than one connection at the same time +- You are called once the request is ready and parsed +- When you send the response, you are immediately ready to handle other connections + while the server is taking care of sending the response in the background +- Speed is OMG +- Easy to use API, HTTP Basic and Digest MD5 Authentication (default), ChunkedResponse +- Easily extendible to handle any type of content +- Supports Continue 100 +- Async WebSocket plugin offering different locations without extra servers or ports +- Async EventSource (Server-Sent Events) plugin to send events to the browser +- URL Rewrite plugin for conditional and permanent url rewrites +- ServeStatic plugin that supports cache, Last-Modified, default index and more +- Simple template processing engine to handle templates + +### Important things to remember + +- This is fully asynchronous server and as such does not run on the loop thread. +- You can not use yield or delay or any function that uses them inside the callbacks +- The server is smart enough to know when to close the connection and free resources +- You can not send more than one response to a single request + +### Principles of operation + +#### The Async Web server + +- Listens for connections +- Wraps the new clients into `Request` +- Keeps track of clients and cleans memory +- Manages `Rewrites` and apply them on the request url +- Manages `Handlers` and attaches them to Requests + +#### Request Life Cycle + +- TCP connection is received by the server +- The connection is wrapped inside `Request` object +- When the request head is received (type, url, get params, http version and host), + the server goes through all `Rewrites` (in the order they were added) to rewrite the url and inject query parameters, + next, it goes through all attached `Handlers`(in the order they were added) trying to find one + that `canHandle` the given request. If none are found, the default(catch-all) handler is attached. +- The rest of the request is received, calling the `handleUpload` or `handleBody` methods of the `Handler` if they are needed (POST+File/Body) +- When the whole request is parsed, the result is given to the `handleRequest` method of the `Handler` and is ready to be responded to +- In the `handleRequest` method, to the `Request` is attached a `Response` object (see below) that will serve the response data back to the client +- When the `Response` is sent, the client is closed and freed from the memory + +#### Rewrites and how do they work + +- The `Rewrites` are used to rewrite the request url and/or inject get parameters for a specific request url path. +- All `Rewrites` are evaluated on the request in the order they have been added to the server. +- The `Rewrite` will change the request url only if the request url (excluding get parameters) is fully match + the rewrite url, and when the optional `Filter` callback return true. +- Setting a `Filter` to the `Rewrite` enables to control when to apply the rewrite, decision can be based on + request url, http version, request host/port/target host, get parameters or the request client's localIP or remoteIP. +- Two filter callbacks are provided: `ON_AP_FILTER` to execute the rewrite when request is made to the AP interface, + `ON_STA_FILTER` to execute the rewrite when request is made to the STA interface. +- The `Rewrite` can specify a target url with optional get parameters, e.g. `/to-url?with=params` + +#### Handlers and how do they work + +- The `Handlers` are used for executing specific actions to particular requests +- One `Handler` instance can be attached to any request and lives together with the server +- Setting a `Filter` to the `Handler` enables to control when to apply the handler, decision can be based on + request url, http version, request host/port/target host, get parameters or the request client's localIP or remoteIP. +- Two filter callbacks are provided: `ON_AP_FILTER` to execute the rewrite when request is made to the AP interface, + `ON_STA_FILTER` to execute the rewrite when request is made to the STA interface. +- The `canHandle` method is used for handler specific control on whether the requests can be handled + and for declaring any interesting headers that the `Request` should parse. Decision can be based on request + method, request url, http version, request host/port/target host and get parameters +- Once a `Handler` is attached to given `Request` (`canHandle` returned true) + that `Handler` takes care to receive any file/data upload and attach a `Response` + once the `Request` has been fully parsed +- `Handlers` are evaluated in the order they are attached to the server. The `canHandle` is called only + if the `Filter` that was set to the `Handler` return true. +- The first `Handler` that can handle the request is selected, not further `Filter` and `canHandle` are called. + +#### Responses and how do they work + +- The `Response` objects are used to send the response data back to the client +- The `Response` object lives with the `Request` and is freed on end or disconnect +- Different techniques are used depending on the response type to send the data in packets + returning back almost immediately and sending the next packet when this one is received. + Any time in between is spent to run the user loop and handle other network packets +- Responding asynchronously is probably the most difficult thing for most to understand +- Many different options exist for the user to make responding a background task + +#### Template processing + +- ESPAsyncWebserver contains simple template processing engine. +- Template processing can be added to most response types. +- Currently it supports only replacing template placeholders with actual values. No conditional processing, cycles, etc. +- Placeholders are delimited with `%` symbols. Like this: `%TEMPLATE_PLACEHOLDER%`. +- It works by extracting placeholder name from response text and passing it to user provided function which should return actual value to be used instead of placeholder. +- Since it's user provided function, it is possible for library users to implement conditional processing and cycles themselves. +- Since it's impossible to know the actual response size after template processing step in advance (and, therefore, to include it in response headers), the response becomes [chunked](#chunked-response). + +### Libraries and projects that use AsyncWebServer + +- [WebSocketToSerial](https://github.com/hallard/WebSocketToSerial) - Debug serial devices through the web browser +- [Sattrack](https://github.com/Hopperpop/Sattrack) - Track the ISS with ESP8266 +- [ESP Radio](https://github.com/Edzelf/Esp-radio) - Icecast radio based on ESP8266 and VS1053 +- [VZero](https://github.com/andig/vzero) - the Wireless zero-config controller for volkszaehler.org +- [ESPurna](https://bitbucket.org/xoseperez/espurna) - ESPurna ("spark" in Catalan) is a custom C firmware for ESP8266 based smart switches. It was originally developed with the ITead Sonoff in mind. +- [fauxmoESP](https://bitbucket.org/xoseperez/fauxmoesp) - Belkin WeMo emulator library for ESP8266. +- [ESP-RFID](https://github.com/omersiar/esp-rfid) - MFRC522 RFID Access Control Management project for ESP8266. + +### Request Variables + +#### Common Variables + +```cpp +request->version(); // uint8_t: 0 = HTTP/1.0, 1 = HTTP/1.1 +request->method(); // enum: HTTP_GET, HTTP_POST, HTTP_DELETE, HTTP_PUT, HTTP_PATCH, HTTP_HEAD, HTTP_OPTIONS +request->url(); // String: URL of the request (not including host, port or GET parameters) +request->host(); // String: The requested host (can be used for virtual hosting) +request->contentType(); // String: ContentType of the request (not avaiable in Handler::canHandle) +request->contentLength(); // size_t: ContentLength of the request (not avaiable in Handler::canHandle) +request->multipart(); // bool: True if the request has content type "multipart" +``` + +#### Headers + +```cpp +//List all collected headers +int headers = request->headers(); +int i; +for(i=0;igetHeader(i); + Serial.printf("HEADER[%s]: %s\n", h->name().c_str(), h->value().c_str()); +} + +//get specific header by name +if(request->hasHeader("MyHeader")){ + AsyncWebHeader* h = request->getHeader("MyHeader"); + Serial.printf("MyHeader: %s\n", h->value().c_str()); +} + +//List all collected headers (Compatibility) +int headers = request->headers(); +int i; +for(i=0;iheaderName(i).c_str(), request->header(i).c_str()); +} + +//get specific header by name (Compatibility) +if(request->hasHeader("MyHeader")){ + Serial.printf("MyHeader: %s\n", request->header("MyHeader").c_str()); +} +``` + +#### GET, POST and FILE parameters + +```cpp +//List all parameters +int params = request->params(); +for(int i=0;igetParam(i); + if(p->isFile()){ //p->isPost() is also true + Serial.printf("FILE[%s]: %s, size: %u\n", p->name().c_str(), p->value().c_str(), p->size()); + } else if(p->isPost()){ + Serial.printf("POST[%s]: %s\n", p->name().c_str(), p->value().c_str()); + } else { + Serial.printf("GET[%s]: %s\n", p->name().c_str(), p->value().c_str()); + } +} + +//Check if GET parameter exists +if(request->hasParam("download")) + AsyncWebParameter* p = request->getParam("download"); + +//Check if POST (but not File) parameter exists +if(request->hasParam("download", true)) + AsyncWebParameter* p = request->getParam("download", true); + +//Check if FILE was uploaded +if(request->hasParam("download", true, true)) + AsyncWebParameter* p = request->getParam("download", true, true); + +//List all parameters (Compatibility) +int args = request->args(); +for(int i=0;iargName(i).c_str(), request->arg(i).c_str()); +} + +//Check if parameter exists (Compatibility) +if(request->hasArg("download")) + String arg = request->arg("download"); +``` + +#### FILE Upload handling + +```cpp +void handleUpload(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){ + if(!index){ + Serial.printf("UploadStart: %s\n", filename.c_str()); + } + for(size_t i=0; i(); + // ... +}); +server.addHandler(handler); +``` + +### Responses + +#### Redirect to another URL + +```cpp +//to local url +request->redirect("/login"); + +//to external url +request->redirect("http://esp8266.com"); +``` + +#### Basic response with HTTP Code + +```cpp +request->send(404); //Sends 404 File Not Found +``` + +#### Basic response with HTTP Code and extra headers + +```cpp +AsyncWebServerResponse *response = request->beginResponse(404); //Sends 404 File Not Found +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Basic response with string content + +```cpp +request->send(200, "text/plain", "Hello World!"); +``` + +#### Basic response with string content and extra headers + +```cpp +AsyncWebServerResponse *response = request->beginResponse(200, "text/plain", "Hello World!"); +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Send large webpage from PROGMEM + +```cpp +const char index_html[] PROGMEM = "..."; // large char array, tested with 14k +request->send_P(200, "text/html", index_html); +``` + +#### Send large webpage from PROGMEM and extra headers + +```cpp +const char index_html[] PROGMEM = "..."; // large char array, tested with 14k +AsyncWebServerResponse *response = request->beginResponse_P(200, "text/html", index_html); +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Send large webpage from PROGMEM containing templates + +```cpp +String processor(const String& var) +{ + if(var == "HELLO_FROM_TEMPLATE") + return F("Hello world!"); + return String(); +} + +// ... + +const char index_html[] PROGMEM = "..."; // large char array, tested with 14k +request->send_P(200, "text/html", index_html, processor); +``` + +#### Send large webpage from PROGMEM containing templates and extra headers + +```cpp +String processor(const String& var) +{ + if(var == "HELLO_FROM_TEMPLATE") + return F("Hello world!"); + return String(); +} + +// ... + +const char index_html[] PROGMEM = "..."; // large char array, tested with 14k +AsyncWebServerResponse *response = request->beginResponse_P(200, "text/html", index_html, processor); +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Send binary content from PROGMEM + +```cpp + +//File: favicon.ico.gz, Size: 726 +#define favicon_ico_gz_len 726 +const uint8_t favicon_ico_gz[] PROGMEM = { + 0x1F, 0x8B, 0x08, 0x08, 0x0B, 0x87, 0x90, 0x57, 0x00, 0x03, 0x66, 0x61, 0x76, 0x69, 0x63, 0x6F, + 0x6E, 0x2E, 0x69, 0x63, 0x6F, 0x00, 0xCD, 0x53, 0x5F, 0x48, 0x9A, 0x51, 0x14, 0xBF, 0x62, 0x6D, + 0x86, 0x96, 0xA9, 0x64, 0xD3, 0xFE, 0xA8, 0x99, 0x65, 0x1A, 0xB4, 0x8A, 0xA8, 0x51, 0x54, 0x23, + 0xA8, 0x11, 0x49, 0x51, 0x8A, 0x34, 0x62, 0x93, 0x85, 0x31, 0x58, 0x44, 0x12, 0x45, 0x2D, 0x58, + 0xF5, 0x52, 0x41, 0x10, 0x23, 0x82, 0xA0, 0x20, 0x98, 0x2F, 0xC1, 0x26, 0xED, 0xA1, 0x20, 0x89, + 0x04, 0xD7, 0x83, 0x58, 0x20, 0x28, 0x04, 0xAB, 0xD1, 0x9B, 0x8C, 0xE5, 0xC3, 0x60, 0x32, 0x64, + 0x0E, 0x56, 0xBF, 0x9D, 0xEF, 0xF6, 0x30, 0x82, 0xED, 0xAD, 0x87, 0xDD, 0x8F, 0xF3, 0xDD, 0x8F, + 0x73, 0xCF, 0xEF, 0x9C, 0xDF, 0x39, 0xBF, 0xFB, 0x31, 0x26, 0xA2, 0x27, 0x37, 0x97, 0xD1, 0x5B, + 0xCF, 0x9E, 0x67, 0x30, 0xA6, 0x66, 0x8C, 0x99, 0xC9, 0xC8, 0x45, 0x9E, 0x6B, 0x3F, 0x5F, 0x74, + 0xA6, 0x94, 0x5E, 0xDB, 0xFF, 0xB2, 0xE6, 0xE7, 0xE7, 0xF9, 0xDE, 0xD6, 0xD6, 0x96, 0xDB, 0xD8, + 0xD8, 0x78, 0xBF, 0xA1, 0xA1, 0xC1, 0xDA, 0xDC, 0xDC, 0x2C, 0xEB, 0xED, 0xED, 0x15, 0x9B, 0xCD, + 0xE6, 0x4A, 0x83, 0xC1, 0xE0, 0x2E, 0x29, 0x29, 0x99, 0xD6, 0x6A, 0xB5, 0x4F, 0x75, 0x3A, 0x9D, + 0x61, 0x75, 0x75, 0x95, 0xB5, 0xB7, 0xB7, 0xDF, 0xC8, 0xD1, 0xD4, 0xD4, 0xF4, 0xB0, 0xBA, 0xBA, + 0xFA, 0x83, 0xD5, 0x6A, 0xFD, 0x5A, 0x5E, 0x5E, 0x9E, 0x28, 0x2D, 0x2D, 0x0D, 0x10, 0xC6, 0x4B, + 0x98, 0x78, 0x5E, 0x5E, 0xDE, 0x95, 0x42, 0xA1, 0x40, 0x4E, 0x4E, 0xCE, 0x65, 0x76, 0x76, 0xF6, + 0x47, 0xB5, 0x5A, 0x6D, 0x4F, 0x26, 0x93, 0xA2, 0xD6, 0xD6, 0x56, 0x8E, 0x6D, 0x69, 0x69, 0xD1, + 0x11, 0x36, 0x62, 0xB1, 0x58, 0x60, 0x32, 0x99, 0xA0, 0xD7, 0xEB, 0x51, 0x58, 0x58, 0x88, 0xFC, + 0xFC, 0x7C, 0x10, 0x16, 0x02, 0x56, 0x2E, 0x97, 0x43, 0x2A, 0x95, 0x42, 0x2C, 0x16, 0x23, 0x33, + 0x33, 0x33, 0xAE, 0x52, 0xA9, 0x1E, 0x64, 0x65, 0x65, 0x71, 0x7C, 0x7D, 0x7D, 0xBD, 0x93, 0xEA, + 0xFE, 0x30, 0x1A, 0x8D, 0xE8, 0xEC, 0xEC, 0xC4, 0xE2, 0xE2, 0x22, 0x6A, 0x6A, 0x6A, 0x40, 0x39, + 0x41, 0xB5, 0x38, 0x4E, 0xC8, 0x33, 0x3C, 0x3C, 0x0C, 0x87, 0xC3, 0xC1, 0x6B, 0x54, 0x54, 0x54, + 0xBC, 0xE9, 0xEB, 0xEB, 0x93, 0x5F, 0x5C, 0x5C, 0x30, 0x8A, 0x9D, 0x2E, 0x2B, 0x2B, 0xBB, 0xA2, + 0x3E, 0x41, 0xBD, 0x21, 0x1E, 0x8F, 0x63, 0x6A, 0x6A, 0x0A, 0x81, 0x40, 0x00, 0x94, 0x1B, 0x3D, + 0x3D, 0x3D, 0x42, 0x3C, 0x96, 0x96, 0x96, 0x70, 0x7E, 0x7E, 0x8E, 0xE3, 0xE3, 0x63, 0xF8, 0xFD, + 0xFE, 0xB4, 0xD7, 0xEB, 0xF5, 0x8F, 0x8F, 0x8F, 0x5B, 0x68, 0x5E, 0x6F, 0x05, 0xCE, 0xB4, 0xE3, + 0xE8, 0xE8, 0x08, 0x27, 0x27, 0x27, 0xD8, 0xDF, 0xDF, 0xC7, 0xD9, 0xD9, 0x19, 0x6C, 0x36, 0x1B, + 0x36, 0x36, 0x36, 0x38, 0x9F, 0x85, 0x85, 0x05, 0xAC, 0xAF, 0xAF, 0x23, 0x1A, 0x8D, 0x22, 0x91, + 0x48, 0x20, 0x16, 0x8B, 0xFD, 0xDA, 0xDA, 0xDA, 0x7A, 0x41, 0x33, 0x7E, 0x57, 0x50, 0x50, 0x80, + 0x89, 0x89, 0x09, 0x84, 0xC3, 0x61, 0x6C, 0x6F, 0x6F, 0x23, 0x12, 0x89, 0xE0, 0xE0, 0xE0, 0x00, + 0x43, 0x43, 0x43, 0x58, 0x5E, 0x5E, 0xE6, 0x9C, 0x7D, 0x3E, 0x1F, 0x46, 0x47, 0x47, 0x79, 0xBE, + 0xBD, 0xBD, 0x3D, 0xE1, 0x3C, 0x1D, 0x0C, 0x06, 0x9F, 0x10, 0xB7, 0xC7, 0x84, 0x4F, 0xF6, 0xF7, + 0xF7, 0x63, 0x60, 0x60, 0x00, 0x83, 0x83, 0x83, 0x18, 0x19, 0x19, 0xC1, 0xDC, 0xDC, 0x1C, 0x8F, + 0x17, 0x7C, 0xA4, 0x27, 0xE7, 0x34, 0x39, 0x39, 0x89, 0x9D, 0x9D, 0x1D, 0x6E, 0x54, 0xE3, 0x13, + 0xE5, 0x34, 0x11, 0x37, 0x49, 0x51, 0x51, 0xD1, 0x4B, 0xA5, 0x52, 0xF9, 0x45, 0x26, 0x93, 0x5D, + 0x0A, 0xF3, 0x92, 0x48, 0x24, 0xA0, 0x6F, 0x14, 0x17, 0x17, 0xA3, 0xB6, 0xB6, 0x16, 0x5D, 0x5D, + 0x5D, 0x7C, 0x1E, 0xBB, 0xBB, 0xBB, 0x9C, 0xD7, 0xE1, 0xE1, 0x21, 0x42, 0xA1, 0xD0, 0x6B, 0xD2, + 0x45, 0x4C, 0x33, 0x12, 0x34, 0xCC, 0xA0, 0x19, 0x54, 0x92, 0x56, 0x0E, 0xD2, 0xD9, 0x43, 0xF8, + 0xCF, 0x82, 0x56, 0xC2, 0xDC, 0xEB, 0xEA, 0xEA, 0x38, 0x7E, 0x6C, 0x6C, 0x4C, 0xE0, 0xFE, 0x9D, + 0xB8, 0xBF, 0xA7, 0xFA, 0xAF, 0x56, 0x56, 0x56, 0xEE, 0x6D, 0x6E, 0x6E, 0xDE, 0xB8, 0x47, 0x55, + 0x55, 0x55, 0x6C, 0x66, 0x66, 0x46, 0x44, 0xDA, 0x3B, 0x34, 0x1A, 0x4D, 0x94, 0xB0, 0x3F, 0x09, + 0x7B, 0x45, 0xBD, 0xA5, 0x5D, 0x2E, 0x57, 0x8C, 0x7A, 0x73, 0xD9, 0xED, 0xF6, 0x3B, 0x84, 0xFF, + 0xE7, 0x7D, 0xA6, 0x3A, 0x2C, 0x95, 0x4A, 0xB1, 0x8E, 0x8E, 0x0E, 0x6D, 0x77, 0x77, 0xB7, 0xCD, + 0xE9, 0x74, 0x3E, 0x73, 0xBB, 0xDD, 0x8F, 0x3C, 0x1E, 0x8F, 0xE6, 0xF4, 0xF4, 0x94, 0xAD, 0xAD, + 0xAD, 0xDD, 0xDE, 0xCF, 0x73, 0x0B, 0x0B, 0xB8, 0xB6, 0xE0, 0x5D, 0xC6, 0x66, 0xC5, 0xE4, 0x10, + 0x4C, 0xF4, 0xF7, 0xD8, 0x59, 0xF2, 0x7F, 0xA3, 0xB8, 0xB4, 0xFC, 0x0F, 0xEE, 0x37, 0x70, 0xEC, + 0x16, 0x4A, 0x7E, 0x04, 0x00, 0x00 +}; + +AsyncWebServerResponse *response = request->beginResponse_P(200, "image/x-icon", favicon_ico_gz, favicon_ico_gz_len); +response->addHeader("Content-Encoding", "gzip"); +request->send(response); +``` + +#### Respond with content coming from a Stream + +```cpp +//read 12 bytes from Serial and send them as Content Type text/plain +request->send(Serial, "text/plain", 12); +``` + +#### Respond with content coming from a Stream and extra headers + +```cpp +//read 12 bytes from Serial and send them as Content Type text/plain +AsyncWebServerResponse *response = request->beginResponse(Serial, "text/plain", 12); +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Respond with content coming from a Stream containing templates + +```cpp +String processor(const String& var) +{ + if(var == "HELLO_FROM_TEMPLATE") + return F("Hello world!"); + return String(); +} + +// ... + +//read 12 bytes from Serial and send them as Content Type text/plain +request->send(Serial, "text/plain", 12, processor); +``` + +#### Respond with content coming from a Stream containing templates and extra headers + +```cpp +String processor(const String& var) +{ + if(var == "HELLO_FROM_TEMPLATE") + return F("Hello world!"); + return String(); +} + +// ... + +//read 12 bytes from Serial and send them as Content Type text/plain +AsyncWebServerResponse *response = request->beginResponse(Serial, "text/plain", 12, processor); +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Respond with content coming from a File + +```cpp +//Send index.htm with default content type +request->send(SPIFFS, "/index.htm"); + +//Send index.htm as text +request->send(SPIFFS, "/index.htm", "text/plain"); + +//Download index.htm +request->send(SPIFFS, "/index.htm", String(), true); +``` + +#### Respond with content coming from a File and extra headers + +```cpp +//Send index.htm with default content type +AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/index.htm"); + +//Send index.htm as text +AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/index.htm", "text/plain"); + +//Download index.htm +AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/index.htm", String(), true); + +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Respond with content coming from a File containing templates + +Internally uses [Chunked Response](#chunked-response). + +Index.htm contents: + +``` +%HELLO_FROM_TEMPLATE% +``` + +Somewhere in source files: + +```cpp +String processor(const String& var) +{ + if(var == "HELLO_FROM_TEMPLATE") + return F("Hello world!"); + return String(); +} + +// ... + +//Send index.htm with template processor function +request->send(SPIFFS, "/index.htm", String(), false, processor); +``` + +#### Respond with content using a callback + +```cpp +//send 128 bytes as plain text +request->send("text/plain", 128, [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { + //Write up to "maxLen" bytes into "buffer" and return the amount written. + //index equals the amount of bytes that have been already sent + //You will not be asked for more bytes once the content length has been reached. + //Keep in mind that you can not delay or yield waiting for more data! + //Send what you currently have and you will be asked for more again + return mySource.read(buffer, maxLen); +}); +``` + +#### Respond with content using a callback and extra headers + +```cpp +//send 128 bytes as plain text +AsyncWebServerResponse *response = request->beginResponse("text/plain", 128, [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { + //Write up to "maxLen" bytes into "buffer" and return the amount written. + //index equals the amount of bytes that have been already sent + //You will not be asked for more bytes once the content length has been reached. + //Keep in mind that you can not delay or yield waiting for more data! + //Send what you currently have and you will be asked for more again + return mySource.read(buffer, maxLen); +}); +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Respond with file content using a callback and extra headers + +With this code your ESP is able to serve even large (large in terms of ESP, e.g. 100kB) files +without memory problems. + +You need to create a file handler in outer function (to have a single one for request) but use +it in a lambda. The catch is that the lambda has it's own lifecycle which may/will cause it's +called after the original function is over thus the original file handle is destroyed. Using the +captured `&file` in the lambda then causes segfault (Hello, Exception 9!) and the whole ESP crashes. +By using this code, you tell the compiler to move the handle into the lambda so it won't be +destroyed when outer function (that one where you call `request->send(response)`) ends. + +```cpp +const File file = ... // e.g. SPIFFS.open(path, "r"); + +const contentType = "application/javascript"; + +AsyncWebServerResponse *response = request->beginResponse( + contentType, + file.size(), + [file](uint8_t *buffer, size_t maxLen, size_t total) mutable -> size_t { + int bytes = file.read(buffer, maxLen); + + // close file at the end + if (bytes + total == file.size()) file.close(); + + return max(0, bytes); // return 0 even when no bytes were loaded + } +); + +if (gzipped) { + response->addHeader(F("Content-Encoding"), F("gzip")); +} + +request->send(response); +``` + +#### Respond with content using a callback containing templates + +```cpp +String processor(const String& var) +{ + if(var == "HELLO_FROM_TEMPLATE") + return F("Hello world!"); + return String(); +} + +// ... + +//send 128 bytes as plain text +request->send("text/plain", 128, [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { + //Write up to "maxLen" bytes into "buffer" and return the amount written. + //index equals the amount of bytes that have been already sent + //You will not be asked for more bytes once the content length has been reached. + //Keep in mind that you can not delay or yield waiting for more data! + //Send what you currently have and you will be asked for more again + return mySource.read(buffer, maxLen); +}, processor); +``` + +#### Respond with content using a callback containing templates and extra headers + +```cpp +String processor(const String& var) +{ + if(var == "HELLO_FROM_TEMPLATE") + return F("Hello world!"); + return String(); +} + +// ... + +//send 128 bytes as plain text +AsyncWebServerResponse *response = request->beginResponse("text/plain", 128, [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { + //Write up to "maxLen" bytes into "buffer" and return the amount written. + //index equals the amount of bytes that have been already sent + //You will not be asked for more bytes once the content length has been reached. + //Keep in mind that you can not delay or yield waiting for more data! + //Send what you currently have and you will be asked for more again + return mySource.read(buffer, maxLen); +}, processor); +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Chunked Response + +Used when content length is unknown. Works best if the client supports HTTP/1.1 + +```cpp +AsyncWebServerResponse *response = request->beginChunkedResponse("text/plain", [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { + //Write up to "maxLen" bytes into "buffer" and return the amount written. + //index equals the amount of bytes that have been already sent + //You will be asked for more data until 0 is returned + //Keep in mind that you can not delay or yield waiting for more data! + return mySource.read(buffer, maxLen); +}); +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Chunked Response containing templates + +Used when content length is unknown. Works best if the client supports HTTP/1.1 + +```cpp +String processor(const String& var) +{ + if(var == "HELLO_FROM_TEMPLATE") + return F("Hello world!"); + return String(); +} + +// ... + +AsyncWebServerResponse *response = request->beginChunkedResponse("text/plain", [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { + //Write up to "maxLen" bytes into "buffer" and return the amount written. + //index equals the amount of bytes that have been already sent + //You will be asked for more data until 0 is returned + //Keep in mind that you can not delay or yield waiting for more data! + return mySource.read(buffer, maxLen); +}, processor); +response->addHeader("Server","ESP Async Web Server"); +request->send(response); +``` + +#### Print to response + +```cpp +AsyncResponseStream *response = request->beginResponseStream("text/html"); +response->addHeader("Server","ESP Async Web Server"); +response->printf("Webpage at %s", request->url().c_str()); + +response->print("

Hello "); +response->print(request->client()->remoteIP()); +response->print("

"); + +response->print("

General

"); +response->print("
    "); +response->printf("
  • Version: HTTP/1.%u
  • ", request->version()); +response->printf("
  • Method: %s
  • ", request->methodToString()); +response->printf("
  • URL: %s
  • ", request->url().c_str()); +response->printf("
  • Host: %s
  • ", request->host().c_str()); +response->printf("
  • ContentType: %s
  • ", request->contentType().c_str()); +response->printf("
  • ContentLength: %u
  • ", request->contentLength()); +response->printf("
  • Multipart: %s
  • ", request->multipart()?"true":"false"); +response->print("
"); + +response->print("

Headers

"); +response->print("
    "); +int headers = request->headers(); +for(int i=0;igetHeader(i); + response->printf("
  • %s: %s
  • ", h->name().c_str(), h->value().c_str()); +} +response->print("
"); + +response->print("

Parameters

"); +response->print("
    "); +int params = request->params(); +for(int i=0;igetParam(i); + if(p->isFile()){ + response->printf("
  • FILE[%s]: %s, size: %u
  • ", p->name().c_str(), p->value().c_str(), p->size()); + } else if(p->isPost()){ + response->printf("
  • POST[%s]: %s
  • ", p->name().c_str(), p->value().c_str()); + } else { + response->printf("
  • GET[%s]: %s
  • ", p->name().c_str(), p->value().c_str()); + } +} +response->print("
"); + +response->print(""); +//send the response last +request->send(response); +``` + +#### ArduinoJson Basic Response + +This way of sending Json is great for when the result is below 4KB + +```cpp +#include "AsyncJson.h" +#include "ArduinoJson.h" + + +AsyncResponseStream *response = request->beginResponseStream("application/json"); +DynamicJsonBuffer jsonBuffer; +JsonObject &root = jsonBuffer.createObject(); +root["heap"] = ESP.getFreeHeap(); +root["ssid"] = WiFi.SSID(); +root.printTo(*response); +request->send(response); +``` + +#### ArduinoJson Advanced Response + +This response can handle really large Json objects (tested to 40KB) +There isn't any noticeable speed decrease for small results with the method above +Since ArduinoJson does not allow reading parts of the string, the whole Json has to +be passed every time a chunks needs to be sent, which shows speed decrease proportional +to the resulting json packets + +```cpp +#include "AsyncJson.h" +#include "ArduinoJson.h" + + +AsyncJsonResponse * response = new AsyncJsonResponse(); +response->addHeader("Server","ESP Async Web Server"); +JsonObject& root = response->getRoot(); +root["heap"] = ESP.getFreeHeap(); +root["ssid"] = WiFi.SSID(); +response->setLength(); +request->send(response); +``` + +### Serving static files + +In addition to serving files from SPIFFS as described above, the server provide a dedicated handler that optimize the +performance of serving files from SPIFFS - `AsyncStaticWebHandler`. Use `server.serveStatic()` function to +initialize and add a new instance of `AsyncStaticWebHandler` to the server. +The Handler will not handle the request if the file does not exists, e.g. the server will continue to look for another +handler that can handle the request. +Notice that you can chain setter functions to setup the handler, or keep a pointer to change it at a later time. + +#### Serving specific file by name + +```cpp +// Serve the file "/www/page.htm" when request url is "/page.htm" +server.serveStatic("/page.htm", SPIFFS, "/www/page.htm"); +``` + +#### Serving files in directory + +To serve files in a directory, the path to the files should specify a directory in SPIFFS and ends with "/". + +```cpp +// Serve files in directory "/www/" when request url starts with "/" +// Request to the root or none existing files will try to server the defualt +// file name "index.htm" if exists +server.serveStatic("/", SPIFFS, "/www/"); + +// Server with different default file +server.serveStatic("/", SPIFFS, "/www/").setDefaultFile("default.html"); +``` + +#### Serving static files with authentication + +```cpp +server + .serveStatic("/", SPIFFS, "/www/") + .setDefaultFile("default.html") + .setAuthentication("user", "pass"); +``` + +#### Specifying Cache-Control header + +It is possible to specify Cache-Control header value to reduce the number of calls to the server once the client loaded +the files. For more information on Cache-Control values see [Cache-Control](https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9) + +```cpp +// Cache responses for 10 minutes (600 seconds) +server.serveStatic("/", SPIFFS, "/www/").setCacheControl("max-age=600"); + +//*** Change Cache-Control after server setup *** + +// During setup - keep a pointer to the handler +AsyncStaticWebHandler* handler = &server.serveStatic("/", SPIFFS, "/www/").setCacheControl("max-age=600"); + +// At a later event - change Cache-Control +handler->setCacheControl("max-age=30"); +``` + +#### Specifying Date-Modified header + +It is possible to specify Date-Modified header to enable the server to return Not-Modified (304) response for requests +with "If-Modified-Since" header with the same value, instead of responding with the actual file content. + +```cpp +// Update the date modified string every time files are updated +server.serveStatic("/", SPIFFS, "/www/").setLastModified("Mon, 20 Jun 2016 14:00:00 GMT"); + +//*** Chage last modified value at a later stage *** + +// During setup - read last modified value from config or EEPROM +String date_modified = loadDateModified(); +AsyncStaticWebHandler* handler = &server.serveStatic("/", SPIFFS, "/www/"); +handler->setLastModified(date_modified); + +// At a later event when files are updated +String date_modified = getNewDateModfied(); +saveDateModified(date_modified); // Save for next reset +handler->setLastModified(date_modified); +``` + +#### Specifying Template Processor callback + +It is possible to specify template processor for static files. For information on template processor see +[Respond with content coming from a File containing templates](#respond-with-content-coming-from-a-file-containing-templates). + +```cpp +String processor(const String& var) +{ + if(var == "HELLO_FROM_TEMPLATE") + return F("Hello world!"); + return String(); +} + +// ... + +server.serveStatic("/", SPIFFS, "/www/").setTemplateProcessor(processor); +``` + +#### Serving static files by custom handling + +It may happen your static files are too big and the ESP will crash the request before it sends the whole file. +In that case, you can handle static files with custom file serving through not found handler. + +This code below is more-or-less equivalent to this: + +```cpp +webServer.serveStatic("/", SPIFFS, STATIC_FILES_PREFIX).setDefaultFile("index.html") +``` + +First, declare the handling function: + +```cpp +bool handleStaticFile(AsyncWebServerRequest *request) { + String path = STATIC_FILES_PREFIX + request->url(); + + if (path.endsWith("/")) path += F("index.html"); + + String contentType = getContentType(path); + String pathWithGz = path + ".gz"; + + if (SPIFFS.exists(pathWithGz) || SPIFFS.exists(path)) { + bool gzipped = false; + if (SPIFFS.exists(pathWithGz)) { + gzipped = true; + path += ".gz"; + } + + // TODO serve the file + + return true; + } + + return false; +} +``` + +And then configure your webserver: + +```cpp +webServer.onNotFound([](AsyncWebServerRequest *request) { + if (handleStaticFile(request)) return; + + request->send(404); +}); +``` + +You may want to try [Respond with file content using a callback and extra headers](#respond-with-file-content-using-a-callback-and-extra-headers) +For actual serving the file. + +### Param Rewrite With Matching + +It is possible to rewrite the request url with parameter match. Here is an example with one parameter: +Rewrite for example "/radio/{frequence}" -> "/radio?f={frequence}" + +```cpp +class OneParamRewrite : public AsyncWebRewrite +{ + protected: + String _urlPrefix; + int _paramIndex; + String _paramsBackup; + + public: + OneParamRewrite(const char* from, const char* to) + : AsyncWebRewrite(from, to) { + + _paramIndex = _from.indexOf('{'); + + if( _paramIndex >=0 && _from.endsWith("}")) { + _urlPrefix = _from.substring(0, _paramIndex); + int index = _params.indexOf('{'); + if(index >= 0) { + _params = _params.substring(0, index); + } + } else { + _urlPrefix = _from; + } + _paramsBackup = _params; + } + + bool match(AsyncWebServerRequest *request) override { + if(request->url().startsWith(_urlPrefix)) { + if(_paramIndex >= 0) { + _params = _paramsBackup + request->url().substring(_paramIndex); + } else { + _params = _paramsBackup; + } + return true; + + } else { + return false; + } + } +}; +``` + +Usage: + +```cpp + server.addRewrite( new OneParamRewrite("/radio/{frequence}", "/radio?f={frequence}") ); +``` + +### Using filters + +Filters can be set to `Rewrite` or `Handler` in order to control when to apply the rewrite and consider the handler. +A filter is a callback function that evaluates the request and return a boolean `true` to include the item +or `false` to exclude it. +Two filter callback are provided for convince: + +- `ON_STA_FILTER` - return true when requests are made to the STA (station mode) interface. +- `ON_AP_FILTER` - return true when requests are made to the AP (access point) interface. + +#### Serve different site files in AP mode + +```cpp +server.serveStatic("/", SPIFFS, "/www/").setFilter(ON_STA_FILTER); +server.serveStatic("/", SPIFFS, "/ap/").setFilter(ON_AP_FILTER); +``` + +#### Rewrite to different index on AP + +```cpp +// Serve the file "/www/index-ap.htm" in AP, and the file "/www/index.htm" on STA +server.rewrite("/", "index.htm"); +server.rewrite("/index.htm", "index-ap.htm").setFilter(ON_AP_FILTER); +server.serveStatic("/", SPIFFS, "/www/"); +``` + +#### Serving different hosts + +```cpp +// Filter callback using request host +bool filterOnHost1(AsyncWebServerRequest *request) { return request->host() == "host1"; } + +// Server setup: server files in "/host1/" to requests for "host1", and files in "/www/" otherwise. +server.serveStatic("/", SPIFFS, "/host1/").setFilter(filterOnHost1); +server.serveStatic("/", SPIFFS, "/www/"); +``` + +#### Determine interface inside callbacks + +```cpp + String RedirectUrl = "http://"; + if (ON_STA_FILTER(request)) { + RedirectUrl += WiFi.localIP().toString(); + } else { + RedirectUrl += WiFi.softAPIP().toString(); + } + RedirectUrl += "/index.htm"; + request->redirect(RedirectUrl); +``` + +### Bad Responses + +Some responses are implemented, but you should not use them, because they do not conform to HTTP. +The following example will lead to unclean close of the connection and more time wasted +than providing the length of the content + +#### Respond with content using a callback without content length to HTTP/1.0 clients + +```cpp +//This is used as fallback for chunked responses to HTTP/1.0 Clients +request->send("text/plain", 0, [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { + //Write up to "maxLen" bytes into "buffer" and return the amount written. + //You will be asked for more data until 0 is returned + //Keep in mind that you can not delay or yield waiting for more data! + return mySource.read(buffer, maxLen); +}); +``` + +### Async WebSocket Plugin + +The server includes a web socket plugin which lets you define different WebSocket locations to connect to +without starting another listening service or using different port + +#### Async WebSocket Event + +```cpp + +void onEvent(AsyncWebSocket * server, AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len){ + if(type == WS_EVT_CONNECT){ + //client connected + os_printf("ws[%s][%u] connect\n", server->url(), client->id()); + client->printf("Hello Client %u :)", client->id()); + client->ping(); + } else if(type == WS_EVT_DISCONNECT){ + //client disconnected + os_printf("ws[%s][%u] disconnect: %u\n", server->url(), client->id()); + } else if(type == WS_EVT_ERROR){ + //error was received from the other end + os_printf("ws[%s][%u] error(%u): %s\n", server->url(), client->id(), *((uint16_t*)arg), (char*)data); + } else if(type == WS_EVT_PONG){ + //pong message was received (in response to a ping request maybe) + os_printf("ws[%s][%u] pong[%u]: %s\n", server->url(), client->id(), len, (len)?(char*)data:""); + } else if(type == WS_EVT_DATA){ + //data packet + AwsFrameInfo * info = (AwsFrameInfo*)arg; + if(info->final && info->index == 0 && info->len == len){ + //the whole message is in a single frame and we got all of it's data + os_printf("ws[%s][%u] %s-message[%llu]: ", server->url(), client->id(), (info->opcode == WS_TEXT)?"text":"binary", info->len); + if(info->opcode == WS_TEXT){ + data[len] = 0; + os_printf("%s\n", (char*)data); + } else { + for(size_t i=0; i < info->len; i++){ + os_printf("%02x ", data[i]); + } + os_printf("\n"); + } + if(info->opcode == WS_TEXT) + client->text("I got your text message"); + else + client->binary("I got your binary message"); + } else { + //message is comprised of multiple frames or the frame is split into multiple packets + if(info->index == 0){ + if(info->num == 0) + os_printf("ws[%s][%u] %s-message start\n", server->url(), client->id(), (info->message_opcode == WS_TEXT)?"text":"binary"); + os_printf("ws[%s][%u] frame[%u] start[%llu]\n", server->url(), client->id(), info->num, info->len); + } + + os_printf("ws[%s][%u] frame[%u] %s[%llu - %llu]: ", server->url(), client->id(), info->num, (info->message_opcode == WS_TEXT)?"text":"binary", info->index, info->index + len); + if(info->message_opcode == WS_TEXT){ + data[len] = 0; + os_printf("%s\n", (char*)data); + } else { + for(size_t i=0; i < len; i++){ + os_printf("%02x ", data[i]); + } + os_printf("\n"); + } + + if((info->index + len) == info->len){ + os_printf("ws[%s][%u] frame[%u] end[%llu]\n", server->url(), client->id(), info->num, info->len); + if(info->final){ + os_printf("ws[%s][%u] %s-message end\n", server->url(), client->id(), (info->message_opcode == WS_TEXT)?"text":"binary"); + if(info->message_opcode == WS_TEXT) + client->text("I got your text message"); + else + client->binary("I got your binary message"); + } + } + } + } +} +``` + +#### Methods for sending data to a socket client + +```cpp + + + +//Server methods +AsyncWebSocket ws("/ws"); +//printf to a client +ws.printf((uint32_t)client_id, arguments...); +//printf to all clients +ws.printfAll(arguments...); +//printf_P to a client +ws.printf_P((uint32_t)client_id, PSTR(format), arguments...); +//printfAll_P to all clients +ws.printfAll_P(PSTR(format), arguments...); +//send text to a client +ws.text((uint32_t)client_id, (char*)text); +ws.text((uint32_t)client_id, (uint8_t*)text, (size_t)len); +//send text from PROGMEM to a client +ws.text((uint32_t)client_id, PSTR("text")); +const char flash_text[] PROGMEM = "Text to send" +ws.text((uint32_t)client_id, FPSTR(flash_text)); +//send text to all clients +ws.textAll((char*)text); +ws.textAll((uint8_t*)text, (size_t)len); +//send binary to a client +ws.binary((uint32_t)client_id, (char*)binary); +ws.binary((uint32_t)client_id, (uint8_t*)binary, (size_t)len); +//send binary from PROGMEM to a client +const uint8_t flash_binary[] PROGMEM = { 0x01, 0x02, 0x03, 0x04 }; +ws.binary((uint32_t)client_id, flash_binary, 4); +//send binary to all clients +ws.binaryAll((char*)binary); +ws.binaryAll((uint8_t*)binary, (size_t)len); +//HTTP Authenticate before switch to Websocket protocol +ws.setAuthentication("user", "pass"); + +//client methods +AsyncWebSocketClient * client; +//printf +client->printf(arguments...); +//printf_P +client->printf_P(PSTR(format), arguments...); +//send text +client->text((char*)text); +client->text((uint8_t*)text, (size_t)len); +//send text from PROGMEM +client->text(PSTR("text")); +const char flash_text[] PROGMEM = "Text to send"; +client->text(FPSTR(flash_text)); +//send binary +client->binary((char*)binary); +client->binary((uint8_t*)binary, (size_t)len); +//send binary from PROGMEM +const uint8_t flash_binary[] PROGMEM = { 0x01, 0x02, 0x03, 0x04 }; +client->binary(flash_binary, 4); +``` + +#### Direct access to web socket message buffer + +When sending a web socket message using the above methods a buffer is created. Under certain circumstances you might want to manipulate or populate this buffer directly from your application, for example to prevent unnecessary duplications of the data. This example below shows how to create a buffer and print data to it from an ArduinoJson object then send it. + +```cpp +void sendDataWs(AsyncWebSocketClient * client) +{ + DynamicJsonBuffer jsonBuffer; + JsonObject& root = jsonBuffer.createObject(); + root["a"] = "abc"; + root["b"] = "abcd"; + root["c"] = "abcde"; + root["d"] = "abcdef"; + root["e"] = "abcdefg"; + size_t len = root.measureLength(); + AsyncWebSocketMessageBuffer * buffer = ws.makeBuffer(len); // creates a buffer (len + 1) for you. + if (buffer) { + root.printTo((char *)buffer->get(), len + 1); + if (client) { + client->text(buffer); + } else { + ws.textAll(buffer); + } + } +} +``` + +#### Limiting the number of web socket clients + +Browsers sometimes do not correctly close the websocket connection, even when the close() function is called in javascript. This will eventually exhaust the web server's resources and will cause the server to crash. Periodically calling the cleanClients() function from the main loop() function limits the number of clients by closing the oldest client when the maximum number of clients has been exceeded. This can called be every cycle, however, if you wish to use less power, then calling as infrequently as once per second is sufficient. + +```cpp +void loop(){ + ws.cleanupClients(); +} +``` + +### Async Event Source Plugin + +The server includes EventSource (Server-Sent Events) plugin which can be used to send short text events to the browser. +Difference between EventSource and WebSockets is that EventSource is single direction, text-only protocol. + +#### Setup Event Source on the server + +```cpp +AsyncWebServer server(80); +AsyncEventSource events("/events"); + +void setup(){ + // setup ...... + events.onConnect([](AsyncEventSourceClient *client){ + if(client->lastId()){ + Serial.printf("Client reconnected! Last message ID that it gat is: %u\n", client->lastId()); + } + //send event with message "hello!", id current millis + // and set reconnect delay to 1 second + client->send("hello!",NULL,millis(),1000); + }); + //HTTP Basic authentication + events.setAuthentication("user", "pass"); + server.addHandler(&events); + // setup ...... +} + +void loop(){ + if(eventTriggered){ // your logic here + //send event "myevent" + events.send("my event content","myevent",millis()); + } +} +``` + +#### Setup Event Source in the browser + +```javascript +if (!!window.EventSource) { + var source = new EventSource("/events"); + + source.addEventListener( + "open", + function (e) { + console.log("Events Connected"); + }, + false + ); + + source.addEventListener( + "error", + function (e) { + if (e.target.readyState != EventSource.OPEN) { + console.log("Events Disconnected"); + } + }, + false + ); + + source.addEventListener( + "message", + function (e) { + console.log("message", e.data); + }, + false + ); + + source.addEventListener( + "myevent", + function (e) { + console.log("myevent", e.data); + }, + false + ); +} +``` + +### Scanning for available WiFi Networks + +```cpp +//First request will return 0 results unless you start scan from somewhere else (loop/setup) +//Do not request more often than 3-5 seconds +server.on("/scan", HTTP_GET, [](AsyncWebServerRequest *request){ + String json = "["; + int n = WiFi.scanComplete(); + if(n == -2){ + WiFi.scanNetworks(true); + } else if(n){ + for (int i = 0; i < n; ++i){ + if(i) json += ","; + json += "{"; + json += "\"rssi\":"+String(WiFi.RSSI(i)); + json += ",\"ssid\":\""+WiFi.SSID(i)+"\""; + json += ",\"bssid\":\""+WiFi.BSSIDstr(i)+"\""; + json += ",\"channel\":"+String(WiFi.channel(i)); + json += ",\"secure\":"+String(WiFi.encryptionType(i)); + json += ",\"hidden\":"+String(WiFi.isHidden(i)?"true":"false"); + json += "}"; + } + WiFi.scanDelete(); + if(WiFi.scanComplete() == -2){ + WiFi.scanNetworks(true); + } + } + json += "]"; + request->send(200, "application/json", json); + json = String(); +}); +``` + +### Remove handlers and rewrites + +Server goes through handlers in same order as they were added. You can't simple add handler with same path to override them. +To remove handler: + +```arduino +// save callback for particular URL path +auto handler = server.on("/some/path", [](AsyncWebServerRequest *request){ + //do something useful +}); +// when you don't need handler anymore remove it +server.removeHandler(&handler); + +// same with rewrites +server.removeRewrite(&someRewrite); + +server.onNotFound([](AsyncWebServerRequest *request){ + request->send(404); +}); + +// remove server.onNotFound handler +server.onNotFound(NULL); + +// remove all rewrites, handlers and onNotFound/onFileUpload/onRequestBody callbacks +server.reset(); +``` + +### Setting up the server + +```cpp +#include "ESPAsyncTCP.h" +#include "ESPAsyncWebServer.h" + +AsyncWebServer server(80); +AsyncWebSocket ws("/ws"); // access at ws://[esp ip]/ws +AsyncEventSource events("/events"); // event source (Server-Sent events) + +const char* ssid = "your-ssid"; +const char* password = "your-pass"; +const char* http_username = "admin"; +const char* http_password = "admin"; + +//flag to use from web update to reboot the ESP +bool shouldReboot = false; + +void onRequest(AsyncWebServerRequest *request){ + //Handle Unknown Request + request->send(404); +} + +void onBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total){ + //Handle body +} + +void onUpload(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){ + //Handle upload +} + +void onEvent(AsyncWebSocket * server, AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len){ + //Handle WebSocket event +} + +void setup(){ + Serial.begin(115200); + WiFi.mode(WIFI_STA); + WiFi.begin(ssid, password); + if (WiFi.waitForConnectResult() != WL_CONNECTED) { + Serial.printf("WiFi Failed!\n"); + return; + } + + // attach AsyncWebSocket + ws.onEvent(onEvent); + server.addHandler(&ws); + + // attach AsyncEventSource + server.addHandler(&events); + + // respond to GET requests on URL /heap + server.on("/heap", HTTP_GET, [](AsyncWebServerRequest *request){ + request->send(200, "text/plain", String(ESP.getFreeHeap())); + }); + + // upload a file to /upload + server.on("/upload", HTTP_POST, [](AsyncWebServerRequest *request){ + request->send(200); + }, onUpload); + + // send a file when /index is requested + server.on("/index", HTTP_ANY, [](AsyncWebServerRequest *request){ + request->send(SPIFFS, "/index.htm"); + }); + + // HTTP basic authentication + server.on("/login", HTTP_GET, [](AsyncWebServerRequest *request){ + if(!request->authenticate(http_username, http_password)) + return request->requestAuthentication(); + request->send(200, "text/plain", "Login Success!"); + }); + + // Simple Firmware Update Form + server.on("/update", HTTP_GET, [](AsyncWebServerRequest *request){ + request->send(200, "text/html", "
"); + }); + server.on("/update", HTTP_POST, [](AsyncWebServerRequest *request){ + shouldReboot = !Update.hasError(); + AsyncWebServerResponse *response = request->beginResponse(200, "text/plain", shouldReboot?"OK":"FAIL"); + response->addHeader("Connection", "close"); + request->send(response); + },[](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){ + if(!index){ + Serial.printf("Update Start: %s\n", filename.c_str()); + Update.runAsync(true); + if(!Update.begin((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000)){ + Update.printError(Serial); + } + } + if(!Update.hasError()){ + if(Update.write(data, len) != len){ + Update.printError(Serial); + } + } + if(final){ + if(Update.end(true)){ + Serial.printf("Update Success: %uB\n", index+len); + } else { + Update.printError(Serial); + } + } + }); + + // attach filesystem root at URL /fs + server.serveStatic("/fs", SPIFFS, "/"); + + // Catch-All Handlers + // Any request that can not find a Handler that canHandle it + // ends in the callbacks below. + server.onNotFound(onRequest); + server.onFileUpload(onUpload); + server.onRequestBody(onBody); + + server.begin(); +} + +void loop(){ + if(shouldReboot){ + Serial.println("Rebooting..."); + delay(100); + ESP.restart(); + } + static char temp[128]; + sprintf(temp, "Seconds since boot: %u", millis()/1000); + events.send(temp, "time"); //send event "time" +} +``` + +#### Setup global and class functions as request handlers + +```cpp +#include +#include +#include +#include + +void handleRequest(AsyncWebServerRequest *request){} + +class WebClass { +public : + AsyncWebServer classWebServer = AsyncWebServer(81); + + WebClass(){}; + + void classRequest (AsyncWebServerRequest *request){} + + void begin(){ + // attach global request handler + classWebServer.on("/example", HTTP_ANY, handleRequest); + + // attach class request handler + classWebServer.on("/example", HTTP_ANY, std::bind(&WebClass::classRequest, this, std::placeholders::_1)); + } +}; + +AsyncWebServer globalWebServer(80); +WebClass webClassInstance; + +void setup() { + // attach global request handler + globalWebServer.on("/example", HTTP_ANY, handleRequest); + + // attach class request handler + globalWebServer.on("/example", HTTP_ANY, std::bind(&WebClass::classRequest, webClassInstance, std::placeholders::_1)); +} + +void loop() { + +} +``` + +#### Methods for controlling websocket connections + +```cpp + // Disable client connections if it was activated + if ( ws.enabled() ) + ws.enable(false); + + // enable client connections if it was disabled + if ( !ws.enabled() ) + ws.enable(true); +``` + +Example of OTA code + +```cpp + // OTA callbacks + ArduinoOTA.onStart([]() { + // Clean SPIFFS + SPIFFS.end(); + + // Disable client connections + ws.enable(false); + + // Advertise connected clients what's going on + ws.textAll("OTA Update Started"); + + // Close them + ws.closeAll(); + + }); + +``` + +#### Adding Default Headers + +In some cases, such as when working with CORS, or with some sort of custom authentication system, +you might need to define a header that should get added to all responses (including static, websocket and EventSource). +The DefaultHeaders singleton allows you to do this. + +Example: + +```cpp +DefaultHeaders::Instance().addHeader("Access-Control-Allow-Origin", "*"); +webServer.begin(); +``` + +_NOTE_: You will still need to respond to the OPTIONS method for CORS pre-flight in most cases. (unless you are only using GET) + +This is one option: + +```cpp +webServer.onNotFound([](AsyncWebServerRequest *request) { + if (request->method() == HTTP_OPTIONS) { + request->send(200); + } else { + request->send(404); + } +}); +``` + +#### Path variable + +With path variable you can create a custom regex rule for a specific parameter in a route. +For example we want a `sensorId` parameter in a route rule to match only a integer. + +```cpp + server.on("^\\/sensor\\/([0-9]+)$", HTTP_GET, [] (AsyncWebServerRequest *request) { + String sensorId = request->pathArg(0); + }); +``` + +_NOTE_: All regex patterns starts with `^` and ends with `$` + +To enable the `Path variable` support, you have to define the buildflag `-DASYNCWEBSERVER_REGEX`. + +For Arduino IDE create/update `platform.local.txt`: + +`Windows`: C:\Users\(username)\AppData\Local\Arduino15\packages\\`{espxxxx}`\hardware\\`espxxxx`\\`{version}`\platform.local.txt + +`Linux`: ~/.arduino15/packages/`{espxxxx}`/hardware/`{espxxxx}`/`{version}`/platform.local.txt + +Add/Update the following line: + +``` + compiler.cpp.extra_flags=-DDASYNCWEBSERVER_REGEX +``` + +For platformio modify `platformio.ini`: + +```ini +[env:myboard] +build_flags = + -DASYNCWEBSERVER_REGEX +``` + +_NOTE_: By enabling `ASYNCWEBSERVER_REGEX`, `` will be included. This will add an 100k to your binary. diff --git a/README.md b/README.md index cbcf648cc..1805847ba 100644 --- a/README.md +++ b/README.md @@ -1,1481 +1,13 @@ -# ESPAsyncWebServer [![Build Status](https://travis-ci.org/me-no-dev/ESPAsyncWebServer.svg?branch=master)](https://travis-ci.org/me-no-dev/ESPAsyncWebServer) +![https://avatars.githubusercontent.com/u/195753706?s=96&v=4](https://avatars.githubusercontent.com/u/195753706?s=96&v=4) -For help and support [![Join the chat at https://gitter.im/me-no-dev/ESPAsyncWebServer](https://badges.gitter.im/me-no-dev/ESPAsyncWebServer.svg)](https://gitter.im/me-no-dev/ESPAsyncWebServer?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) +# Project moved to [ESP32Async](https://github.com/organizations/ESP32Async) organization at [https://github.com/ESP32Async/ESPAsyncWebServer](https://github.com/ESP32Async/ESPAsyncWebServer) -Async HTTP and WebSocket Server for ESP8266 Arduino +Discord Server: [https://discord.gg/X7zpGdyUcY](https://discord.gg/X7zpGdyUcY) -For ESP8266 it requires [ESPAsyncTCP](https://github.com/me-no-dev/ESPAsyncTCP) -To use this library you might need to have the latest git versions of [ESP8266](https://github.com/esp8266/Arduino) Arduino Core +Please see the new links: -For ESP32 it requires [AsyncTCP](https://github.com/me-no-dev/AsyncTCP) to work -To use this library you might need to have the latest git versions of [ESP32](https://github.com/espressif/arduino-esp32) Arduino Core - -## Table of contents -- [ESPAsyncWebServer](#espasyncwebserver) - - [Table of contents](#table-of-contents) - - [Installation](#installation) - - [Using PlatformIO](#using-platformio) - - [Why should you care](#why-should-you-care) - - [Important things to remember](#important-things-to-remember) - - [Principles of operation](#principles-of-operation) - - [The Async Web server](#the-async-web-server) - - [Request Life Cycle](#request-life-cycle) - - [Rewrites and how do they work](#rewrites-and-how-do-they-work) - - [Handlers and how do they work](#handlers-and-how-do-they-work) - - [Responses and how do they work](#responses-and-how-do-they-work) - - [Template processing](#template-processing) - - [Libraries and projects that use AsyncWebServer](#libraries-and-projects-that-use-asyncwebserver) - - [Request Variables](#request-variables) - - [Common Variables](#common-variables) - - [Headers](#headers) - - [GET, POST and FILE parameters](#get-post-and-file-parameters) - - [FILE Upload handling](#file-upload-handling) - - [Body data handling](#body-data-handling) - - [JSON body handling with ArduinoJson](#json-body-handling-with-arduinojson) - - [Responses](#responses) - - [Redirect to another URL](#redirect-to-another-url) - - [Basic response with HTTP Code](#basic-response-with-http-code) - - [Basic response with HTTP Code and extra headers](#basic-response-with-http-code-and-extra-headers) - - [Basic response with string content](#basic-response-with-string-content) - - [Basic response with string content and extra headers](#basic-response-with-string-content-and-extra-headers) - - [Send large webpage from PROGMEM](#send-large-webpage-from-progmem) - - [Send large webpage from PROGMEM and extra headers](#send-large-webpage-from-progmem-and-extra-headers) - - [Send large webpage from PROGMEM containing templates](#send-large-webpage-from-progmem-containing-templates) - - [Send large webpage from PROGMEM containing templates and extra headers](#send-large-webpage-from-progmem-containing-templates-and-extra-headers) - - [Send binary content from PROGMEM](#send-binary-content-from-progmem) - - [Respond with content coming from a Stream](#respond-with-content-coming-from-a-stream) - - [Respond with content coming from a Stream and extra headers](#respond-with-content-coming-from-a-stream-and-extra-headers) - - [Respond with content coming from a Stream containing templates](#respond-with-content-coming-from-a-stream-containing-templates) - - [Respond with content coming from a Stream containing templates and extra headers](#respond-with-content-coming-from-a-stream-containing-templates-and-extra-headers) - - [Respond with content coming from a File](#respond-with-content-coming-from-a-file) - - [Respond with content coming from a File and extra headers](#respond-with-content-coming-from-a-file-and-extra-headers) - - [Respond with content coming from a File containing templates](#respond-with-content-coming-from-a-file-containing-templates) - - [Respond with content using a callback](#respond-with-content-using-a-callback) - - [Respond with content using a callback and extra headers](#respond-with-content-using-a-callback-and-extra-headers) - - [Respond with content using a callback containing templates](#respond-with-content-using-a-callback-containing-templates) - - [Respond with content using a callback containing templates and extra headers](#respond-with-content-using-a-callback-containing-templates-and-extra-headers) - - [Chunked Response](#chunked-response) - - [Chunked Response containing templates](#chunked-response-containing-templates) - - [Print to response](#print-to-response) - - [ArduinoJson Basic Response](#arduinojson-basic-response) - - [ArduinoJson Advanced Response](#arduinojson-advanced-response) - - [Serving static files](#serving-static-files) - - [Serving specific file by name](#serving-specific-file-by-name) - - [Serving files in directory](#serving-files-in-directory) - - [Serving static files with authentication](#serving-static-files-with-authentication) - - [Specifying Cache-Control header](#specifying-cache-control-header) - - [Specifying Date-Modified header](#specifying-date-modified-header) - - [Specifying Template Processor callback](#specifying-template-processor-callback) - - [Param Rewrite With Matching](#param-rewrite-with-matching) - - [Using filters](#using-filters) - - [Serve different site files in AP mode](#serve-different-site-files-in-ap-mode) - - [Rewrite to different index on AP](#rewrite-to-different-index-on-ap) - - [Serving different hosts](#serving-different-hosts) - - [Determine interface inside callbacks](#determine-interface-inside-callbacks) - - [Bad Responses](#bad-responses) - - [Respond with content using a callback without content length to HTTP/1.0 clients](#respond-with-content-using-a-callback-without-content-length-to-http10-clients) - - [Async WebSocket Plugin](#async-websocket-plugin) - - [Async WebSocket Event](#async-websocket-event) - - [Methods for sending data to a socket client](#methods-for-sending-data-to-a-socket-client) - - [Direct access to web socket message buffer](#direct-access-to-web-socket-message-buffer) - - [Async Event Source Plugin](#async-event-source-plugin) - - [Setup Event Source on the server](#setup-event-source-on-the-server) - - [Setup Event Source in the browser](#setup-event-source-in-the-browser) - - [Scanning for available WiFi Networks](#scanning-for-available-wifi-networks) - - [Remove handlers and rewrites](#remove-handlers-and-rewrites) - - [Setting up the server](#setting-up-the-server) - - [Setup global and class functions as request handlers](#setup-global-and-class-functions-as-request-handlers) - - [Methods for controlling websocket connections](#methods-for-controlling-websocket-connections) - - [Adding Default Headers](#adding-default-headers) - -## Installation - -### Using PlatformIO - -[PlatformIO](http://platformio.org) is an open source ecosystem for IoT development with cross platform build system, library manager and full support for Espressif ESP8266/ESP32 development. It works on the popular host OS: Mac OS X, Windows, Linux 32/64, Linux ARM (like Raspberry Pi, BeagleBone, CubieBoard). - -1. Install [PlatformIO IDE](http://platformio.org/platformio-ide) -2. Create new project using "PlatformIO Home > New Project" -3. Update dev/platform to staging version: - - [Instruction for Espressif 8266](http://docs.platformio.org/en/latest/platforms/espressif8266.html#using-arduino-framework-with-staging-version) - - [Instruction for Espressif 32](http://docs.platformio.org/en/latest/platforms/espressif32.html#using-arduino-framework-with-staging-version) - 4. Add "ESP Async WebServer" to project using [Project Configuration File `platformio.ini`](http://docs.platformio.org/page/projectconf.html) and [lib_deps](http://docs.platformio.org/page/projectconf/section_env_library.html#lib-deps) option: -```ini -[env:myboard] -platform = espressif... -board = ... -framework = arduino - -# using the latest stable version -lib_deps = ESP Async WebServer - -# or using GIT Url (the latest development version) -lib_deps = https://github.com/me-no-dev/ESPAsyncWebServer.git -``` - 5. Happy coding with PlatformIO! - -## Why should you care -- Using asynchronous network means that you can handle more than one connection at the same time -- You are called once the request is ready and parsed -- When you send the response, you are immediately ready to handle other connections - while the server is taking care of sending the response in the background -- Speed is OMG -- Easy to use API, HTTP Basic and Digest MD5 Authentication (default), ChunkedResponse -- Easily extendible to handle any type of content -- Supports Continue 100 -- Async WebSocket plugin offering different locations without extra servers or ports -- Async EventSource (Server-Sent Events) plugin to send events to the browser -- URL Rewrite plugin for conditional and permanent url rewrites -- ServeStatic plugin that supports cache, Last-Modified, default index and more -- Simple template processing engine to handle templates - -## Important things to remember -- This is fully asynchronous server and as such does not run on the loop thread. -- You can not use yield or delay or any function that uses them inside the callbacks -- The server is smart enough to know when to close the connection and free resources -- You can not send more than one response to a single request - -## Principles of operation - -### The Async Web server -- Listens for connections -- Wraps the new clients into ```Request``` -- Keeps track of clients and cleans memory -- Manages ```Rewrites``` and apply them on the request url -- Manages ```Handlers``` and attaches them to Requests - -### Request Life Cycle -- TCP connection is received by the server -- The connection is wrapped inside ```Request``` object -- When the request head is received (type, url, get params, http version and host), - the server goes through all ```Rewrites``` (in the order they were added) to rewrite the url and inject query parameters, - next, it goes through all attached ```Handlers```(in the order they were added) trying to find one - that ```canHandle``` the given request. If none are found, the default(catch-all) handler is attached. -- The rest of the request is received, calling the ```handleUpload``` or ```handleBody``` methods of the ```Handler``` if they are needed (POST+File/Body) -- When the whole request is parsed, the result is given to the ```handleRequest``` method of the ```Handler``` and is ready to be responded to -- In the ```handleRequest``` method, to the ```Request``` is attached a ```Response``` object (see below) that will serve the response data back to the client -- When the ```Response``` is sent, the client is closed and freed from the memory - -### Rewrites and how do they work -- The ```Rewrites``` are used to rewrite the request url and/or inject get parameters for a specific request url path. -- All ```Rewrites``` are evaluated on the request in the order they have been added to the server. -- The ```Rewrite``` will change the request url only if the request url (excluding get parameters) is fully match - the rewrite url, and when the optional ```Filter``` callback return true. -- Setting a ```Filter``` to the ```Rewrite``` enables to control when to apply the rewrite, decision can be based on - request url, http version, request host/port/target host, get parameters or the request client's localIP or remoteIP. -- Two filter callbacks are provided: ```ON_AP_FILTER``` to execute the rewrite when request is made to the AP interface, - ```ON_STA_FILTER``` to execute the rewrite when request is made to the STA interface. -- The ```Rewrite``` can specify a target url with optional get parameters, e.g. ```/to-url?with=params``` - -### Handlers and how do they work -- The ```Handlers``` are used for executing specific actions to particular requests -- One ```Handler``` instance can be attached to any request and lives together with the server -- Setting a ```Filter``` to the ```Handler``` enables to control when to apply the handler, decision can be based on - request url, http version, request host/port/target host, get parameters or the request client's localIP or remoteIP. -- Two filter callbacks are provided: ```ON_AP_FILTER``` to execute the rewrite when request is made to the AP interface, - ```ON_STA_FILTER``` to execute the rewrite when request is made to the STA interface. -- The ```canHandle``` method is used for handler specific control on whether the requests can be handled - and for declaring any interesting headers that the ```Request``` should parse. Decision can be based on request - method, request url, http version, request host/port/target host and get parameters -- Once a ```Handler``` is attached to given ```Request``` (```canHandle``` returned true) - that ```Handler``` takes care to receive any file/data upload and attach a ```Response``` - once the ```Request``` has been fully parsed -- ```Handlers``` are evaluated in the order they are attached to the server. The ```canHandle``` is called only - if the ```Filter``` that was set to the ```Handler``` return true. -- The first ```Handler``` that can handle the request is selected, not further ```Filter``` and ```canHandle``` are called. - -### Responses and how do they work -- The ```Response``` objects are used to send the response data back to the client -- The ```Response``` object lives with the ```Request``` and is freed on end or disconnect -- Different techniques are used depending on the response type to send the data in packets - returning back almost immediately and sending the next packet when this one is received. - Any time in between is spent to run the user loop and handle other network packets -- Responding asynchronously is probably the most difficult thing for most to understand -- Many different options exist for the user to make responding a background task - -### Template processing -- ESPAsyncWebserver contains simple template processing engine. -- Template processing can be added to most response types. -- Currently it supports only replacing template placeholders with actual values. No conditional processing, cycles, etc. -- Placeholders are delimited with ```%``` symbols. Like this: ```%TEMPLATE_PLACEHOLDER%```. -- It works by extracting placeholder name from response text and passing it to user provided function which should return actual value to be used instead of placeholder. -- Since it's user provided function, it is possible for library users to implement conditional processing and cycles themselves. -- Since it's impossible to know the actual response size after template processing step in advance (and, therefore, to include it in response headers), the response becomes [chunked](#chunked-response). - -## Libraries and projects that use AsyncWebServer -- [WebSocketToSerial](https://github.com/hallard/WebSocketToSerial) - Debug serial devices through the web browser -- [Sattrack](https://github.com/Hopperpop/Sattrack) - Track the ISS with ESP8266 -- [ESP Radio](https://github.com/Edzelf/Esp-radio) - Icecast radio based on ESP8266 and VS1053 -- [VZero](https://github.com/andig/vzero) - the Wireless zero-config controller for volkszaehler.org -- [ESPurna](https://bitbucket.org/xoseperez/espurna) - ESPurna ("spark" in Catalan) is a custom C firmware for ESP8266 based smart switches. It was originally developed with the ITead Sonoff in mind. -- [fauxmoESP](https://bitbucket.org/xoseperez/fauxmoesp) - Belkin WeMo emulator library for ESP8266. -- [ESP-RFID](https://github.com/omersiar/esp-rfid) - MFRC522 RFID Access Control Management project for ESP8266. - -## Request Variables - -### Common Variables -```cpp -request->version(); // uint8_t: 0 = HTTP/1.0, 1 = HTTP/1.1 -request->method(); // enum: HTTP_GET, HTTP_POST, HTTP_DELETE, HTTP_PUT, HTTP_PATCH, HTTP_HEAD, HTTP_OPTIONS -request->url(); // String: URL of the request (not including host, port or GET parameters) -request->host(); // String: The requested host (can be used for virtual hosting) -request->contentType(); // String: ContentType of the request (not avaiable in Handler::canHandle) -request->contentLength(); // size_t: ContentLength of the request (not avaiable in Handler::canHandle) -request->multipart(); // bool: True if the request has content type "multipart" -``` - -### Headers -```cpp -//List all collected headers -int headers = request->headers(); -int i; -for(i=0;igetHeader(i); - Serial.printf("HEADER[%s]: %s\n", h->name().c_str(), h->value().c_str()); -} - -//get specific header by name -if(request->hasHeader("MyHeader")){ - AsyncWebHeader* h = request->getHeader("MyHeader"); - Serial.printf("MyHeader: %s\n", h->value().c_str()); -} - -//List all collected headers (Compatibility) -int headers = request->headers(); -int i; -for(i=0;iheaderName(i).c_str(), request->header(i).c_str()); -} - -//get specific header by name (Compatibility) -if(request->hasHeader("MyHeader")){ - Serial.printf("MyHeader: %s\n", request->header("MyHeader").c_str()); -} -``` - -### GET, POST and FILE parameters -```cpp -//List all parameters -int params = request->params(); -for(int i=0;igetParam(i); - if(p->isFile()){ //p->isPost() is also true - Serial.printf("FILE[%s]: %s, size: %u\n", p->name().c_str(), p->value().c_str(), p->size()); - } else if(p->isPost()){ - Serial.printf("POST[%s]: %s\n", p->name().c_str(), p->value().c_str()); - } else { - Serial.printf("GET[%s]: %s\n", p->name().c_str(), p->value().c_str()); - } -} - -//Check if GET parameter exists -if(request->hasParam("download")) - AsyncWebParameter* p = request->getParam("download"); - -//Check if POST (but not File) parameter exists -if(request->hasParam("download", true)) - AsyncWebParameter* p = request->getParam("download", true); - -//Check if FILE was uploaded -if(request->hasParam("download", true, true)) - AsyncWebParameter* p = request->getParam("download", true, true); - -//List all parameters (Compatibility) -int args = request->args(); -for(int i=0;iargName(i).c_str(), request->arg(i).c_str()); -} - -//Check if parameter exists (Compatibility) -if(request->hasArg("download")) - String arg = request->arg("download"); -``` - -### FILE Upload handling -```cpp -void handleUpload(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){ - if(!index){ - Serial.printf("UploadStart: %s\n", filename.c_str()); - } - for(size_t i=0; i(); - // ... -}); -server.addHandler(handler); -``` - -## Responses -### Redirect to another URL -```cpp -//to local url -request->redirect("/login"); - -//to external url -request->redirect("http://esp8266.com"); -``` - -### Basic response with HTTP Code -```cpp -request->send(404); //Sends 404 File Not Found -``` - -### Basic response with HTTP Code and extra headers -```cpp -AsyncWebServerResponse *response = request->beginResponse(404); //Sends 404 File Not Found -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Basic response with string content -```cpp -request->send(200, "text/plain", "Hello World!"); -``` - -### Basic response with string content and extra headers -```cpp -AsyncWebServerResponse *response = request->beginResponse(200, "text/plain", "Hello World!"); -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Send large webpage from PROGMEM -```cpp -const char index_html[] PROGMEM = "..."; // large char array, tested with 14k -request->send_P(200, "text/html", index_html); -``` - -### Send large webpage from PROGMEM and extra headers -```cpp -const char index_html[] PROGMEM = "..."; // large char array, tested with 14k -AsyncWebServerResponse *response = request->beginResponse_P(200, "text/html", index_html); -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Send large webpage from PROGMEM containing templates -```cpp -String processor(const String& var) -{ - if(var == "HELLO_FROM_TEMPLATE") - return F("Hello world!"); - return String(); -} - -// ... - -const char index_html[] PROGMEM = "..."; // large char array, tested with 14k -request->send_P(200, "text/html", index_html, processor); -``` - -### Send large webpage from PROGMEM containing templates and extra headers -```cpp -String processor(const String& var) -{ - if(var == "HELLO_FROM_TEMPLATE") - return F("Hello world!"); - return String(); -} - -// ... - -const char index_html[] PROGMEM = "..."; // large char array, tested with 14k -AsyncWebServerResponse *response = request->beginResponse_P(200, "text/html", index_html, processor); -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Send binary content from PROGMEM -```cpp - -//File: favicon.ico.gz, Size: 726 -#define favicon_ico_gz_len 726 -const uint8_t favicon_ico_gz[] PROGMEM = { - 0x1F, 0x8B, 0x08, 0x08, 0x0B, 0x87, 0x90, 0x57, 0x00, 0x03, 0x66, 0x61, 0x76, 0x69, 0x63, 0x6F, - 0x6E, 0x2E, 0x69, 0x63, 0x6F, 0x00, 0xCD, 0x53, 0x5F, 0x48, 0x9A, 0x51, 0x14, 0xBF, 0x62, 0x6D, - 0x86, 0x96, 0xA9, 0x64, 0xD3, 0xFE, 0xA8, 0x99, 0x65, 0x1A, 0xB4, 0x8A, 0xA8, 0x51, 0x54, 0x23, - 0xA8, 0x11, 0x49, 0x51, 0x8A, 0x34, 0x62, 0x93, 0x85, 0x31, 0x58, 0x44, 0x12, 0x45, 0x2D, 0x58, - 0xF5, 0x52, 0x41, 0x10, 0x23, 0x82, 0xA0, 0x20, 0x98, 0x2F, 0xC1, 0x26, 0xED, 0xA1, 0x20, 0x89, - 0x04, 0xD7, 0x83, 0x58, 0x20, 0x28, 0x04, 0xAB, 0xD1, 0x9B, 0x8C, 0xE5, 0xC3, 0x60, 0x32, 0x64, - 0x0E, 0x56, 0xBF, 0x9D, 0xEF, 0xF6, 0x30, 0x82, 0xED, 0xAD, 0x87, 0xDD, 0x8F, 0xF3, 0xDD, 0x8F, - 0x73, 0xCF, 0xEF, 0x9C, 0xDF, 0x39, 0xBF, 0xFB, 0x31, 0x26, 0xA2, 0x27, 0x37, 0x97, 0xD1, 0x5B, - 0xCF, 0x9E, 0x67, 0x30, 0xA6, 0x66, 0x8C, 0x99, 0xC9, 0xC8, 0x45, 0x9E, 0x6B, 0x3F, 0x5F, 0x74, - 0xA6, 0x94, 0x5E, 0xDB, 0xFF, 0xB2, 0xE6, 0xE7, 0xE7, 0xF9, 0xDE, 0xD6, 0xD6, 0x96, 0xDB, 0xD8, - 0xD8, 0x78, 0xBF, 0xA1, 0xA1, 0xC1, 0xDA, 0xDC, 0xDC, 0x2C, 0xEB, 0xED, 0xED, 0x15, 0x9B, 0xCD, - 0xE6, 0x4A, 0x83, 0xC1, 0xE0, 0x2E, 0x29, 0x29, 0x99, 0xD6, 0x6A, 0xB5, 0x4F, 0x75, 0x3A, 0x9D, - 0x61, 0x75, 0x75, 0x95, 0xB5, 0xB7, 0xB7, 0xDF, 0xC8, 0xD1, 0xD4, 0xD4, 0xF4, 0xB0, 0xBA, 0xBA, - 0xFA, 0x83, 0xD5, 0x6A, 0xFD, 0x5A, 0x5E, 0x5E, 0x9E, 0x28, 0x2D, 0x2D, 0x0D, 0x10, 0xC6, 0x4B, - 0x98, 0x78, 0x5E, 0x5E, 0xDE, 0x95, 0x42, 0xA1, 0x40, 0x4E, 0x4E, 0xCE, 0x65, 0x76, 0x76, 0xF6, - 0x47, 0xB5, 0x5A, 0x6D, 0x4F, 0x26, 0x93, 0xA2, 0xD6, 0xD6, 0x56, 0x8E, 0x6D, 0x69, 0x69, 0xD1, - 0x11, 0x36, 0x62, 0xB1, 0x58, 0x60, 0x32, 0x99, 0xA0, 0xD7, 0xEB, 0x51, 0x58, 0x58, 0x88, 0xFC, - 0xFC, 0x7C, 0x10, 0x16, 0x02, 0x56, 0x2E, 0x97, 0x43, 0x2A, 0x95, 0x42, 0x2C, 0x16, 0x23, 0x33, - 0x33, 0x33, 0xAE, 0x52, 0xA9, 0x1E, 0x64, 0x65, 0x65, 0x71, 0x7C, 0x7D, 0x7D, 0xBD, 0x93, 0xEA, - 0xFE, 0x30, 0x1A, 0x8D, 0xE8, 0xEC, 0xEC, 0xC4, 0xE2, 0xE2, 0x22, 0x6A, 0x6A, 0x6A, 0x40, 0x39, - 0x41, 0xB5, 0x38, 0x4E, 0xC8, 0x33, 0x3C, 0x3C, 0x0C, 0x87, 0xC3, 0xC1, 0x6B, 0x54, 0x54, 0x54, - 0xBC, 0xE9, 0xEB, 0xEB, 0x93, 0x5F, 0x5C, 0x5C, 0x30, 0x8A, 0x9D, 0x2E, 0x2B, 0x2B, 0xBB, 0xA2, - 0x3E, 0x41, 0xBD, 0x21, 0x1E, 0x8F, 0x63, 0x6A, 0x6A, 0x0A, 0x81, 0x40, 0x00, 0x94, 0x1B, 0x3D, - 0x3D, 0x3D, 0x42, 0x3C, 0x96, 0x96, 0x96, 0x70, 0x7E, 0x7E, 0x8E, 0xE3, 0xE3, 0x63, 0xF8, 0xFD, - 0xFE, 0xB4, 0xD7, 0xEB, 0xF5, 0x8F, 0x8F, 0x8F, 0x5B, 0x68, 0x5E, 0x6F, 0x05, 0xCE, 0xB4, 0xE3, - 0xE8, 0xE8, 0x08, 0x27, 0x27, 0x27, 0xD8, 0xDF, 0xDF, 0xC7, 0xD9, 0xD9, 0x19, 0x6C, 0x36, 0x1B, - 0x36, 0x36, 0x36, 0x38, 0x9F, 0x85, 0x85, 0x05, 0xAC, 0xAF, 0xAF, 0x23, 0x1A, 0x8D, 0x22, 0x91, - 0x48, 0x20, 0x16, 0x8B, 0xFD, 0xDA, 0xDA, 0xDA, 0x7A, 0x41, 0x33, 0x7E, 0x57, 0x50, 0x50, 0x80, - 0x89, 0x89, 0x09, 0x84, 0xC3, 0x61, 0x6C, 0x6F, 0x6F, 0x23, 0x12, 0x89, 0xE0, 0xE0, 0xE0, 0x00, - 0x43, 0x43, 0x43, 0x58, 0x5E, 0x5E, 0xE6, 0x9C, 0x7D, 0x3E, 0x1F, 0x46, 0x47, 0x47, 0x79, 0xBE, - 0xBD, 0xBD, 0x3D, 0xE1, 0x3C, 0x1D, 0x0C, 0x06, 0x9F, 0x10, 0xB7, 0xC7, 0x84, 0x4F, 0xF6, 0xF7, - 0xF7, 0x63, 0x60, 0x60, 0x00, 0x83, 0x83, 0x83, 0x18, 0x19, 0x19, 0xC1, 0xDC, 0xDC, 0x1C, 0x8F, - 0x17, 0x7C, 0xA4, 0x27, 0xE7, 0x34, 0x39, 0x39, 0x89, 0x9D, 0x9D, 0x1D, 0x6E, 0x54, 0xE3, 0x13, - 0xE5, 0x34, 0x11, 0x37, 0x49, 0x51, 0x51, 0xD1, 0x4B, 0xA5, 0x52, 0xF9, 0x45, 0x26, 0x93, 0x5D, - 0x0A, 0xF3, 0x92, 0x48, 0x24, 0xA0, 0x6F, 0x14, 0x17, 0x17, 0xA3, 0xB6, 0xB6, 0x16, 0x5D, 0x5D, - 0x5D, 0x7C, 0x1E, 0xBB, 0xBB, 0xBB, 0x9C, 0xD7, 0xE1, 0xE1, 0x21, 0x42, 0xA1, 0xD0, 0x6B, 0xD2, - 0x45, 0x4C, 0x33, 0x12, 0x34, 0xCC, 0xA0, 0x19, 0x54, 0x92, 0x56, 0x0E, 0xD2, 0xD9, 0x43, 0xF8, - 0xCF, 0x82, 0x56, 0xC2, 0xDC, 0xEB, 0xEA, 0xEA, 0x38, 0x7E, 0x6C, 0x6C, 0x4C, 0xE0, 0xFE, 0x9D, - 0xB8, 0xBF, 0xA7, 0xFA, 0xAF, 0x56, 0x56, 0x56, 0xEE, 0x6D, 0x6E, 0x6E, 0xDE, 0xB8, 0x47, 0x55, - 0x55, 0x55, 0x6C, 0x66, 0x66, 0x46, 0x44, 0xDA, 0x3B, 0x34, 0x1A, 0x4D, 0x94, 0xB0, 0x3F, 0x09, - 0x7B, 0x45, 0xBD, 0xA5, 0x5D, 0x2E, 0x57, 0x8C, 0x7A, 0x73, 0xD9, 0xED, 0xF6, 0x3B, 0x84, 0xFF, - 0xE7, 0x7D, 0xA6, 0x3A, 0x2C, 0x95, 0x4A, 0xB1, 0x8E, 0x8E, 0x0E, 0x6D, 0x77, 0x77, 0xB7, 0xCD, - 0xE9, 0x74, 0x3E, 0x73, 0xBB, 0xDD, 0x8F, 0x3C, 0x1E, 0x8F, 0xE6, 0xF4, 0xF4, 0x94, 0xAD, 0xAD, - 0xAD, 0xDD, 0xDE, 0xCF, 0x73, 0x0B, 0x0B, 0xB8, 0xB6, 0xE0, 0x5D, 0xC6, 0x66, 0xC5, 0xE4, 0x10, - 0x4C, 0xF4, 0xF7, 0xD8, 0x59, 0xF2, 0x7F, 0xA3, 0xB8, 0xB4, 0xFC, 0x0F, 0xEE, 0x37, 0x70, 0xEC, - 0x16, 0x4A, 0x7E, 0x04, 0x00, 0x00 -}; - -AsyncWebServerResponse *response = request->beginResponse_P(200, "image/x-icon", favicon_ico_gz, favicon_ico_gz_len); -response->addHeader("Content-Encoding", "gzip"); -request->send(response); -``` - -### Respond with content coming from a Stream -```cpp -//read 12 bytes from Serial and send them as Content Type text/plain -request->send(Serial, "text/plain", 12); -``` - -### Respond with content coming from a Stream and extra headers -```cpp -//read 12 bytes from Serial and send them as Content Type text/plain -AsyncWebServerResponse *response = request->beginResponse(Serial, "text/plain", 12); -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Respond with content coming from a Stream containing templates -```cpp -String processor(const String& var) -{ - if(var == "HELLO_FROM_TEMPLATE") - return F("Hello world!"); - return String(); -} - -// ... - -//read 12 bytes from Serial and send them as Content Type text/plain -request->send(Serial, "text/plain", 12, processor); -``` - -### Respond with content coming from a Stream containing templates and extra headers -```cpp -String processor(const String& var) -{ - if(var == "HELLO_FROM_TEMPLATE") - return F("Hello world!"); - return String(); -} - -// ... - -//read 12 bytes from Serial and send them as Content Type text/plain -AsyncWebServerResponse *response = request->beginResponse(Serial, "text/plain", 12, processor); -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Respond with content coming from a File -```cpp -//Send index.htm with default content type -request->send(SPIFFS, "/index.htm"); - -//Send index.htm as text -request->send(SPIFFS, "/index.htm", "text/plain"); - -//Download index.htm -request->send(SPIFFS, "/index.htm", String(), true); -``` - -### Respond with content coming from a File and extra headers -```cpp -//Send index.htm with default content type -AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/index.htm"); - -//Send index.htm as text -AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/index.htm", "text/plain"); - -//Download index.htm -AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/index.htm", String(), true); - -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Respond with content coming from a File containing templates -Internally uses [Chunked Response](#chunked-response). - -Index.htm contents: -``` -%HELLO_FROM_TEMPLATE% -``` - -Somewhere in source files: -```cpp -String processor(const String& var) -{ - if(var == "HELLO_FROM_TEMPLATE") - return F("Hello world!"); - return String(); -} - -// ... - -//Send index.htm with template processor function -request->send(SPIFFS, "/index.htm", String(), false, processor); -``` - -### Respond with content using a callback -```cpp -//send 128 bytes as plain text -request->send("text/plain", 128, [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { - //Write up to "maxLen" bytes into "buffer" and return the amount written. - //index equals the amount of bytes that have been already sent - //You will not be asked for more bytes once the content length has been reached. - //Keep in mind that you can not delay or yield waiting for more data! - //Send what you currently have and you will be asked for more again - return mySource.read(buffer, maxLen); -}); -``` - -### Respond with content using a callback and extra headers -```cpp -//send 128 bytes as plain text -AsyncWebServerResponse *response = request->beginResponse("text/plain", 128, [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { - //Write up to "maxLen" bytes into "buffer" and return the amount written. - //index equals the amount of bytes that have been already sent - //You will not be asked for more bytes once the content length has been reached. - //Keep in mind that you can not delay or yield waiting for more data! - //Send what you currently have and you will be asked for more again - return mySource.read(buffer, maxLen); -}); -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Respond with content using a callback containing templates -```cpp -String processor(const String& var) -{ - if(var == "HELLO_FROM_TEMPLATE") - return F("Hello world!"); - return String(); -} - -// ... - -//send 128 bytes as plain text -request->send("text/plain", 128, [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { - //Write up to "maxLen" bytes into "buffer" and return the amount written. - //index equals the amount of bytes that have been already sent - //You will not be asked for more bytes once the content length has been reached. - //Keep in mind that you can not delay or yield waiting for more data! - //Send what you currently have and you will be asked for more again - return mySource.read(buffer, maxLen); -}, processor); -``` - -### Respond with content using a callback containing templates and extra headers -```cpp -String processor(const String& var) -{ - if(var == "HELLO_FROM_TEMPLATE") - return F("Hello world!"); - return String(); -} - -// ... - -//send 128 bytes as plain text -AsyncWebServerResponse *response = request->beginResponse("text/plain", 128, [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { - //Write up to "maxLen" bytes into "buffer" and return the amount written. - //index equals the amount of bytes that have been already sent - //You will not be asked for more bytes once the content length has been reached. - //Keep in mind that you can not delay or yield waiting for more data! - //Send what you currently have and you will be asked for more again - return mySource.read(buffer, maxLen); -}, processor); -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Chunked Response -Used when content length is unknown. Works best if the client supports HTTP/1.1 -```cpp -AsyncWebServerResponse *response = request->beginChunkedResponse("text/plain", [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { - //Write up to "maxLen" bytes into "buffer" and return the amount written. - //index equals the amount of bytes that have been already sent - //You will be asked for more data until 0 is returned - //Keep in mind that you can not delay or yield waiting for more data! - return mySource.read(buffer, maxLen); -}); -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Chunked Response containing templates -Used when content length is unknown. Works best if the client supports HTTP/1.1 -```cpp -String processor(const String& var) -{ - if(var == "HELLO_FROM_TEMPLATE") - return F("Hello world!"); - return String(); -} - -// ... - -AsyncWebServerResponse *response = request->beginChunkedResponse("text/plain", [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { - //Write up to "maxLen" bytes into "buffer" and return the amount written. - //index equals the amount of bytes that have been already sent - //You will be asked for more data until 0 is returned - //Keep in mind that you can not delay or yield waiting for more data! - return mySource.read(buffer, maxLen); -}, processor); -response->addHeader("Server","ESP Async Web Server"); -request->send(response); -``` - -### Print to response -```cpp -AsyncResponseStream *response = request->beginResponseStream("text/html"); -response->addHeader("Server","ESP Async Web Server"); -response->printf("Webpage at %s", request->url().c_str()); - -response->print("

Hello "); -response->print(request->client()->remoteIP()); -response->print("

"); - -response->print("

General

"); -response->print("
    "); -response->printf("
  • Version: HTTP/1.%u
  • ", request->version()); -response->printf("
  • Method: %s
  • ", request->methodToString()); -response->printf("
  • URL: %s
  • ", request->url().c_str()); -response->printf("
  • Host: %s
  • ", request->host().c_str()); -response->printf("
  • ContentType: %s
  • ", request->contentType().c_str()); -response->printf("
  • ContentLength: %u
  • ", request->contentLength()); -response->printf("
  • Multipart: %s
  • ", request->multipart()?"true":"false"); -response->print("
"); - -response->print("

Headers

"); -response->print("
    "); -int headers = request->headers(); -for(int i=0;igetHeader(i); - response->printf("
  • %s: %s
  • ", h->name().c_str(), h->value().c_str()); -} -response->print("
"); - -response->print("

Parameters

"); -response->print("
    "); -int params = request->params(); -for(int i=0;igetParam(i); - if(p->isFile()){ - response->printf("
  • FILE[%s]: %s, size: %u
  • ", p->name().c_str(), p->value().c_str(), p->size()); - } else if(p->isPost()){ - response->printf("
  • POST[%s]: %s
  • ", p->name().c_str(), p->value().c_str()); - } else { - response->printf("
  • GET[%s]: %s
  • ", p->name().c_str(), p->value().c_str()); - } -} -response->print("
"); - -response->print(""); -//send the response last -request->send(response); -``` - -### ArduinoJson Basic Response -This way of sending Json is great for when the result is below 4KB -```cpp -#include "AsyncJson.h" -#include "ArduinoJson.h" - - -AsyncResponseStream *response = request->beginResponseStream("application/json"); -DynamicJsonBuffer jsonBuffer; -JsonObject &root = jsonBuffer.createObject(); -root["heap"] = ESP.getFreeHeap(); -root["ssid"] = WiFi.SSID(); -root.printTo(*response); -request->send(response); -``` - -### ArduinoJson Advanced Response -This response can handle really large Json objects (tested to 40KB) -There isn't any noticeable speed decrease for small results with the method above -Since ArduinoJson does not allow reading parts of the string, the whole Json has to -be passed every time a chunks needs to be sent, which shows speed decrease proportional -to the resulting json packets -```cpp -#include "AsyncJson.h" -#include "ArduinoJson.h" - - -AsyncJsonResponse * response = new AsyncJsonResponse(); -response->addHeader("Server","ESP Async Web Server"); -JsonObject& root = response->getRoot(); -root["heap"] = ESP.getFreeHeap(); -root["ssid"] = WiFi.SSID(); -response->setLength(); -request->send(response); -``` - -## Serving static files -In addition to serving files from SPIFFS as described above, the server provide a dedicated handler that optimize the -performance of serving files from SPIFFS - ```AsyncStaticWebHandler```. Use ```server.serveStatic()``` function to -initialize and add a new instance of ```AsyncStaticWebHandler``` to the server. -The Handler will not handle the request if the file does not exists, e.g. the server will continue to look for another -handler that can handle the request. -Notice that you can chain setter functions to setup the handler, or keep a pointer to change it at a later time. - -### Serving specific file by name -```cpp -// Serve the file "/www/page.htm" when request url is "/page.htm" -server.serveStatic("/page.htm", SPIFFS, "/www/page.htm"); -``` - -### Serving files in directory -To serve files in a directory, the path to the files should specify a directory in SPIFFS and ends with "/". -```cpp -// Serve files in directory "/www/" when request url starts with "/" -// Request to the root or none existing files will try to server the defualt -// file name "index.htm" if exists -server.serveStatic("/", SPIFFS, "/www/"); - -// Server with different default file -server.serveStatic("/", SPIFFS, "/www/").setDefaultFile("default.html"); -``` - -### Serving static files with authentication - -```cpp -server - .serveStatic("/", SPIFFS, "/www/") - .setDefaultFile("default.html") - .setAuthentication("user", "pass"); -``` - -### Specifying Cache-Control header -It is possible to specify Cache-Control header value to reduce the number of calls to the server once the client loaded -the files. For more information on Cache-Control values see [Cache-Control](https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9) -```cpp -// Cache responses for 10 minutes (600 seconds) -server.serveStatic("/", SPIFFS, "/www/").setCacheControl("max-age=600"); - -//*** Change Cache-Control after server setup *** - -// During setup - keep a pointer to the handler -AsyncStaticWebHandler* handler = &server.serveStatic("/", SPIFFS, "/www/").setCacheControl("max-age=600"); - -// At a later event - change Cache-Control -handler->setCacheControl("max-age=30"); -``` - -### Specifying Date-Modified header -It is possible to specify Date-Modified header to enable the server to return Not-Modified (304) response for requests -with "If-Modified-Since" header with the same value, instead of responding with the actual file content. -```cpp -// Update the date modified string every time files are updated -server.serveStatic("/", SPIFFS, "/www/").setLastModified("Mon, 20 Jun 2016 14:00:00 GMT"); - -//*** Chage last modified value at a later stage *** - -// During setup - read last modified value from config or EEPROM -String date_modified = loadDateModified(); -AsyncStaticWebHandler* handler = &server.serveStatic("/", SPIFFS, "/www/"); -handler->setLastModified(date_modified); - -// At a later event when files are updated -String date_modified = getNewDateModfied(); -saveDateModified(date_modified); // Save for next reset -handler->setLastModified(date_modified); -``` - -### Specifying Template Processor callback -It is possible to specify template processor for static files. For information on template processor see -[Respond with content coming from a File containing templates](#respond-with-content-coming-from-a-file-containing-templates). -```cpp -String processor(const String& var) -{ - if(var == "HELLO_FROM_TEMPLATE") - return F("Hello world!"); - return String(); -} - -// ... - -server.serveStatic("/", SPIFFS, "/www/").setTemplateProcessor(processor); -``` - -## Param Rewrite With Matching -It is possible to rewrite the request url with parameter matchg. Here is an example with one parameter: -Rewrite for example "/radio/{frequence}" -> "/radio?f={frequence}" - -```cpp -class OneParamRewrite : public AsyncWebRewrite -{ - protected: - String _urlPrefix; - int _paramIndex; - String _paramsBackup; - - public: - OneParamRewrite(const char* from, const char* to) - : AsyncWebRewrite(from, to) { - - _paramIndex = _from.indexOf('{'); - - if( _paramIndex >=0 && _from.endsWith("}")) { - _urlPrefix = _from.substring(0, _paramIndex); - int index = _params.indexOf('{'); - if(index >= 0) { - _params = _params.substring(0, index); - } - } else { - _urlPrefix = _from; - } - _paramsBackup = _params; - } - - bool match(AsyncWebServerRequest *request) override { - if(request->url().startsWith(_urlPrefix)) { - if(_paramIndex >= 0) { - _params = _paramsBackup + request->url().substring(_paramIndex); - } else { - _params = _paramsBackup; - } - return true; - - } else { - return false; - } - } -}; -``` - -Usage: - -```cpp - server.addRewrite( new OneParamRewrite("/radio/{frequence}", "/radio?f={frequence}") ); -``` - -## Using filters -Filters can be set to `Rewrite` or `Handler` in order to control when to apply the rewrite and consider the handler. -A filter is a callback function that evaluates the request and return a boolean `true` to include the item -or `false` to exclude it. -Two filter callback are provided for convince: -* `ON_STA_FILTER` - return true when requests are made to the STA (station mode) interface. -* `ON_AP_FILTER` - return true when requests are made to the AP (access point) interface. - -### Serve different site files in AP mode -```cpp -server.serveStatic("/", SPIFFS, "/www/").setFilter(ON_STA_FILTER); -server.serveStatic("/", SPIFFS, "/ap/").setFilter(ON_AP_FILTER); -``` - -### Rewrite to different index on AP -```cpp -// Serve the file "/www/index-ap.htm" in AP, and the file "/www/index.htm" on STA -server.rewrite("/", "index.htm"); -server.rewrite("/index.htm", "index-ap.htm").setFilter(ON_AP_FILTER); -server.serveStatic("/", SPIFFS, "/www/"); -``` - -### Serving different hosts -```cpp -// Filter callback using request host -bool filterOnHost1(AsyncWebServerRequest *request) { return request->host() == "host1"; } - -// Server setup: server files in "/host1/" to requests for "host1", and files in "/www/" otherwise. -server.serveStatic("/", SPIFFS, "/host1/").setFilter(filterOnHost1); -server.serveStatic("/", SPIFFS, "/www/"); -``` - -### Determine interface inside callbacks -```cpp - String RedirectUrl = "http://"; - if (ON_STA_FILTER(request)) { - RedirectUrl += WiFi.localIP().toString(); - } else { - RedirectUrl += WiFi.softAPIP().toString(); - } - RedirectUrl += "/index.htm"; - request->redirect(RedirectUrl); -``` - -## Bad Responses -Some responses are implemented, but you should not use them, because they do not conform to HTTP. -The following example will lead to unclean close of the connection and more time wasted -than providing the length of the content - -### Respond with content using a callback without content length to HTTP/1.0 clients -```cpp -//This is used as fallback for chunked responses to HTTP/1.0 Clients -request->send("text/plain", 0, [](uint8_t *buffer, size_t maxLen, size_t index) -> size_t { - //Write up to "maxLen" bytes into "buffer" and return the amount written. - //You will be asked for more data until 0 is returned - //Keep in mind that you can not delay or yield waiting for more data! - return mySource.read(buffer, maxLen); -}); -``` - -## Async WebSocket Plugin -The server includes a web socket plugin which lets you define different WebSocket locations to connect to -without starting another listening service or using different port - -### Async WebSocket Event -```cpp - -void onEvent(AsyncWebSocket * server, AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len){ - if(type == WS_EVT_CONNECT){ - //client connected - os_printf("ws[%s][%u] connect\n", server->url(), client->id()); - client->printf("Hello Client %u :)", client->id()); - client->ping(); - } else if(type == WS_EVT_DISCONNECT){ - //client disconnected - os_printf("ws[%s][%u] disconnect: %u\n", server->url(), client->id()); - } else if(type == WS_EVT_ERROR){ - //error was received from the other end - os_printf("ws[%s][%u] error(%u): %s\n", server->url(), client->id(), *((uint16_t*)arg), (char*)data); - } else if(type == WS_EVT_PONG){ - //pong message was received (in response to a ping request maybe) - os_printf("ws[%s][%u] pong[%u]: %s\n", server->url(), client->id(), len, (len)?(char*)data:""); - } else if(type == WS_EVT_DATA){ - //data packet - AwsFrameInfo * info = (AwsFrameInfo*)arg; - if(info->final && info->index == 0 && info->len == len){ - //the whole message is in a single frame and we got all of it's data - os_printf("ws[%s][%u] %s-message[%llu]: ", server->url(), client->id(), (info->opcode == WS_TEXT)?"text":"binary", info->len); - if(info->opcode == WS_TEXT){ - data[len] = 0; - os_printf("%s\n", (char*)data); - } else { - for(size_t i=0; i < info->len; i++){ - os_printf("%02x ", data[i]); - } - os_printf("\n"); - } - if(info->opcode == WS_TEXT) - client->text("I got your text message"); - else - client->binary("I got your binary message"); - } else { - //message is comprised of multiple frames or the frame is split into multiple packets - if(info->index == 0){ - if(info->num == 0) - os_printf("ws[%s][%u] %s-message start\n", server->url(), client->id(), (info->message_opcode == WS_TEXT)?"text":"binary"); - os_printf("ws[%s][%u] frame[%u] start[%llu]\n", server->url(), client->id(), info->num, info->len); - } - - os_printf("ws[%s][%u] frame[%u] %s[%llu - %llu]: ", server->url(), client->id(), info->num, (info->message_opcode == WS_TEXT)?"text":"binary", info->index, info->index + len); - if(info->message_opcode == WS_TEXT){ - data[len] = 0; - os_printf("%s\n", (char*)data); - } else { - for(size_t i=0; i < len; i++){ - os_printf("%02x ", data[i]); - } - os_printf("\n"); - } - - if((info->index + len) == info->len){ - os_printf("ws[%s][%u] frame[%u] end[%llu]\n", server->url(), client->id(), info->num, info->len); - if(info->final){ - os_printf("ws[%s][%u] %s-message end\n", server->url(), client->id(), (info->message_opcode == WS_TEXT)?"text":"binary"); - if(info->message_opcode == WS_TEXT) - client->text("I got your text message"); - else - client->binary("I got your binary message"); - } - } - } - } -} -``` - -### Methods for sending data to a socket client -```cpp - - - -//Server methods -AsyncWebSocket ws("/ws"); -//printf to a client -ws.printf((uint32_t)client_id, arguments...); -//printf to all clients -ws.printfAll(arguments...); -//printf_P to a client -ws.printf_P((uint32_t)client_id, PSTR(format), arguments...); -//printfAll_P to all clients -ws.printfAll_P(PSTR(format), arguments...); -//send text to a client -ws.text((uint32_t)client_id, (char*)text); -ws.text((uint32_t)client_id, (uint8_t*)text, (size_t)len); -//send text from PROGMEM to a client -ws.text((uint32_t)client_id, PSTR("text")); -const char flash_text[] PROGMEM = "Text to send" -ws.text((uint32_t)client_id, FPSTR(flash_text)); -//send text to all clients -ws.textAll((char*)text); -ws.textAll((uint8_t*)text, (size_t)len); -//send binary to a client -ws.binary((uint32_t)client_id, (char*)binary); -ws.binary((uint32_t)client_id, (uint8_t*)binary, (size_t)len); -//send binary from PROGMEM to a client -const uint8_t flash_binary[] PROGMEM = { 0x01, 0x02, 0x03, 0x04 }; -ws.binary((uint32_t)client_id, flash_binary, 4); -//send binary to all clients -ws.binaryAll((char*)binary); -ws.binaryAll((uint8_t*)binary, (size_t)len); -//HTTP Authenticate before switch to Websocket protocol -ws.setAuthentication("user", "pass"); - -//client methods -AsyncWebSocketClient * client; -//printf -client->printf(arguments...); -//printf_P -client->printf_P(PSTR(format), arguments...); -//send text -client->text((char*)text); -client->text((uint8_t*)text, (size_t)len); -//send text from PROGMEM -client->text(PSTR("text")); -const char flash_text[] PROGMEM = "Text to send"; -client->text(FPSTR(flash_text)); -//send binary -client->binary((char*)binary); -client->binary((uint8_t*)binary, (size_t)len); -//send binary from PROGMEM -const uint8_t flash_binary[] PROGMEM = { 0x01, 0x02, 0x03, 0x04 }; -client->binary(flash_binary, 4); -``` - -### Direct access to web socket message buffer -When sending a web socket message using the above methods a buffer is created. Under certain circumstances you might want to manipulate or populate this buffer directly from your application, for example to prevent unnecessary duplications of the data. This example below shows how to create a buffer and print data to it from an ArduinoJson object then send it. - -```cpp -void sendDataWs(AsyncWebSocketClient * client) -{ - DynamicJsonBuffer jsonBuffer; - JsonObject& root = jsonBuffer.createObject(); - root["a"] = "abc"; - root["b"] = "abcd"; - root["c"] = "abcde"; - root["d"] = "abcdef"; - root["e"] = "abcdefg"; - size_t len = root.measureLength(); - AsyncWebSocketMessageBuffer * buffer = ws.makeBuffer(len); // creates a buffer (len + 1) for you. - if (buffer) { - root.printTo((char *)buffer->get(), len + 1); - if (client) { - client->text(buffer); - } else { - ws.textAll(buffer); - } - } -} -``` - -## Async Event Source Plugin -The server includes EventSource (Server-Sent Events) plugin which can be used to send short text events to the browser. -Difference between EventSource and WebSockets is that EventSource is single direction, text-only protocol. - -### Setup Event Source on the server -```cpp -AsyncWebServer server(80); -AsyncEventSource events("/events"); - -void setup(){ - // setup ...... - events.onConnect([](AsyncEventSourceClient *client){ - if(client->lastId()){ - Serial.printf("Client reconnected! Last message ID that it gat is: %u\n", client->lastId()); - } - //send event with message "hello!", id current millis - // and set reconnect delay to 1 second - client->send("hello!",NULL,millis(),1000); - }); - //HTTP Basic authentication - events.setAuthentication("user", "pass"); - server.addHandler(&events); - // setup ...... -} - -void loop(){ - if(eventTriggered){ // your logic here - //send event "myevent" - events.send("my event content","myevent",millis()); - } -} -``` - -### Setup Event Source in the browser -```javascript -if (!!window.EventSource) { - var source = new EventSource('/events'); - - source.addEventListener('open', function(e) { - console.log("Events Connected"); - }, false); - - source.addEventListener('error', function(e) { - if (e.target.readyState != EventSource.OPEN) { - console.log("Events Disconnected"); - } - }, false); - - source.addEventListener('message', function(e) { - console.log("message", e.data); - }, false); - - source.addEventListener('myevent', function(e) { - console.log("myevent", e.data); - }, false); -} -``` - -## Scanning for available WiFi Networks -```cpp -//First request will return 0 results unless you start scan from somewhere else (loop/setup) -//Do not request more often than 3-5 seconds -server.on("/scan", HTTP_GET, [](AsyncWebServerRequest *request){ - String json = "["; - int n = WiFi.scanComplete(); - if(n == -2){ - WiFi.scanNetworks(true); - } else if(n){ - for (int i = 0; i < n; ++i){ - if(i) json += ","; - json += "{"; - json += "\"rssi\":"+String(WiFi.RSSI(i)); - json += ",\"ssid\":\""+WiFi.SSID(i)+"\""; - json += ",\"bssid\":\""+WiFi.BSSIDstr(i)+"\""; - json += ",\"channel\":"+String(WiFi.channel(i)); - json += ",\"secure\":"+String(WiFi.encryptionType(i)); - json += ",\"hidden\":"+String(WiFi.isHidden(i)?"true":"false"); - json += "}"; - } - WiFi.scanDelete(); - if(WiFi.scanComplete() == -2){ - WiFi.scanNetworks(true); - } - } - json += "]"; - request->send(200, "application/json", json); - json = String(); -}); -``` - -## Remove handlers and rewrites - -Server goes through handlers in same order as they were added. You can't simple add handler with same path to override them. -To remove handler: -```arduino -// save callback for particular URL path -auto handler = server.on("/some/path", [](AsyncWebServerRequest *request){ - //do something useful -}); -// when you don't need handler anymore remove it -server.removeHandler(&handler); - -// same with rewrites -server.removeRewrite(&someRewrite); - -server.onNotFound([](AsyncWebServerRequest *request){ - request->send(404); -}); - -// remove server.onNotFound handler -server.onNotFound(NULL); - -// remove all rewrites, handlers and onNotFound/onFileUpload/onRequestBody callbacks -server.reset(); -``` - -## Setting up the server -```cpp -#include "ESPAsyncTCP.h" -#include "ESPAsyncWebServer.h" - -AsyncWebServer server(80); -AsyncWebSocket ws("/ws"); // access at ws://[esp ip]/ws -AsyncEventSource events("/events"); // event source (Server-Sent events) - -const char* ssid = "your-ssid"; -const char* password = "your-pass"; -const char* http_username = "admin"; -const char* http_password = "admin"; - -//flag to use from web update to reboot the ESP -bool shouldReboot = false; - -void onRequest(AsyncWebServerRequest *request){ - //Handle Unknown Request - request->send(404); -} - -void onBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total){ - //Handle body -} - -void onUpload(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){ - //Handle upload -} - -void onEvent(AsyncWebSocket * server, AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len){ - //Handle WebSocket event -} - -void setup(){ - Serial.begin(115200); - WiFi.mode(WIFI_STA); - WiFi.begin(ssid, password); - if (WiFi.waitForConnectResult() != WL_CONNECTED) { - Serial.printf("WiFi Failed!\n"); - return; - } - - // attach AsyncWebSocket - ws.onEvent(onEvent); - server.addHandler(&ws); - - // attach AsyncEventSource - server.addHandler(&events); - - // respond to GET requests on URL /heap - server.on("/heap", HTTP_GET, [](AsyncWebServerRequest *request){ - request->send(200, "text/plain", String(ESP.getFreeHeap())); - }); - - // upload a file to /upload - server.on("/upload", HTTP_POST, [](AsyncWebServerRequest *request){ - request->send(200); - }, onUpload); - - // send a file when /index is requested - server.on("/index", HTTP_ANY, [](AsyncWebServerRequest *request){ - request->send(SPIFFS, "/index.htm"); - }); - - // HTTP basic authentication - server.on("/login", HTTP_GET, [](AsyncWebServerRequest *request){ - if(!request->authenticate(http_username, http_password)) - return request->requestAuthentication(); - request->send(200, "text/plain", "Login Success!"); - }); - - // Simple Firmware Update Form - server.on("/update", HTTP_GET, [](AsyncWebServerRequest *request){ - request->send(200, "text/html", "
"); - }); - server.on("/update", HTTP_POST, [](AsyncWebServerRequest *request){ - shouldReboot = !Update.hasError(); - AsyncWebServerResponse *response = request->beginResponse(200, "text/plain", shouldReboot?"OK":"FAIL"); - response->addHeader("Connection", "close"); - request->send(response); - },[](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){ - if(!index){ - Serial.printf("Update Start: %s\n", filename.c_str()); - Update.runAsync(true); - if(!Update.begin((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000)){ - Update.printError(Serial); - } - } - if(!Update.hasError()){ - if(Update.write(data, len) != len){ - Update.printError(Serial); - } - } - if(final){ - if(Update.end(true)){ - Serial.printf("Update Success: %uB\n", index+len); - } else { - Update.printError(Serial); - } - } - }); - - // attach filesystem root at URL /fs - server.serveStatic("/fs", SPIFFS, "/"); - - // Catch-All Handlers - // Any request that can not find a Handler that canHandle it - // ends in the callbacks below. - server.onNotFound(onRequest); - server.onFileUpload(onUpload); - server.onRequestBody(onBody); - - server.begin(); -} - -void loop(){ - if(shouldReboot){ - Serial.println("Rebooting..."); - delay(100); - ESP.restart(); - } - static char temp[128]; - sprintf(temp, "Seconds since boot: %u", millis()/1000); - events.send(temp, "time"); //send event "time" -} -``` - -### Setup global and class functions as request handlers - -```arduino -#include -#include -#include -#include - -void handleRequest(AsyncWebServerRequest *request) -{ -} - -class WebClass -{ -public : - WebClass(){ - }; - - AsyncWebServer classWebServer = AsyncWebServer(80); - - void classRequest (AsyncWebServerRequest *request) - { - } - - void begin(){ - - // attach global request handler - classWebServer.on("/example", HTTP_ANY, handleRequest); - - // attach class request handler - classWebServer.on("/example", HTTP_ANY, std::bind(&WebClass::classRequest, this, std::placeholders::_1)); - } -}; - -AsyncWebServer globalWebServer(80); -WebClass webClassInstance; - -void setup() { - - // attach global request handler - globalWebServer.on("/example", HTTP_ANY, handleRequest); - - // attach class request handler - globalWebServer.on("/example", HTTP_ANY, std::bind(&WebClass::classRequest, webClassInstance, std::placeholders::_1)); -} - -void loop() { - -} -``` - -### Methods for controlling websocket connections - -```arduino - // Disable client connections if it was activated - if ( ws.enabled() ) - ws.enable(false); - - // enable client connections if it was disabled - if ( !ws.enabled() ) - ws.enable(true); -``` - -Example of OTA code - -```arduino - // OTA callbacks - ArduinoOTA.onStart([]() { - // Clean SPIFFS - SPIFFS.end(); - - // Disable client connections - ws.enable(false); - - // Advertise connected clients what's going on - ws.textAll("OTA Update Started"); - - // Close them - ws.closeAll(); - - }); - -``` - -### Adding Default Headers - -In some cases, such as when working with CORS, or with some sort of custom authentication system, -you might need to define a header that should get added to all responses (including static, websocket and EventSource). -The DefaultHeaders singleton allows you to do this. - -Example: - -```arduino -DefaultHeaders::Instance().addHeader("Access-Control-Allow-Origin", "*"); -webServer.begin(); -``` - -*NOTE*: You will still need to respond to the OPTIONS method for CORS pre-flight in most cases. (unless you are only using GET) - -This is one option: - -```arduino -webServer.onNotFound([](AsyncWebServerRequest *request) { - if (request->method() == HTTP_OPTIONS) { - request->send(200); - } else { - request->send(404); - } -}); -``` +- `ESP32Async/ESPAsyncWebServer @ 3.6.0` (ESP32, ESP8266, RP2040) +- `ESP32Async/AsyncTCP @ 3.3.2` (ESP32) +- `ESP32Async/ESPAsyncTCP @ 2.0.0` (ESP8266) +- `https://github.com/ESP32Async/AsyncTCPSock/archive/refs/tags/v1.0.3-dev.zip` (AsyncTCP alternative for ESP32) +- `khoih-prog/AsyncTCP_RP2040W @ 1.2.0` (RP2040) diff --git a/component.mk b/component.mk deleted file mode 100644 index bb5bb1614..000000000 --- a/component.mk +++ /dev/null @@ -1,3 +0,0 @@ -COMPONENT_ADD_INCLUDEDIRS := src -COMPONENT_SRCDIRS := src -CXXFLAGS += -fno-rtti diff --git a/docs/logo.png b/docs/logo.png new file mode 100644 index 000000000..1995c88b9 Binary files /dev/null and b/docs/logo.png differ diff --git a/docs/logo.webp b/docs/logo.webp new file mode 100644 index 000000000..c70b84209 Binary files /dev/null and b/docs/logo.webp differ diff --git a/docs/perf-c10-asynctcpsock.png b/docs/perf-c10-asynctcpsock.png new file mode 100644 index 000000000..b1d4d7aa6 Binary files /dev/null and b/docs/perf-c10-asynctcpsock.png differ diff --git a/docs/perf-c10.png b/docs/perf-c10.png new file mode 100644 index 000000000..e63e71a88 Binary files /dev/null and b/docs/perf-c10.png differ diff --git a/examples/CaptivePortal/CaptivePortal.ino b/examples/CaptivePortal/CaptivePortal.ino index f97f142a6..69232d875 100644 --- a/examples/CaptivePortal/CaptivePortal.ino +++ b/examples/CaptivePortal/CaptivePortal.ino @@ -1,10 +1,13 @@ #include #ifdef ESP32 -#include -#include + #include + #include #elif defined(ESP8266) -#include -#include + #include + #include +#elif defined(TARGET_RP2040) + #include + #include #endif #include "ESPAsyncWebServer.h" @@ -12,36 +15,44 @@ DNSServer dnsServer; AsyncWebServer server(80); class CaptiveRequestHandler : public AsyncWebHandler { -public: - CaptiveRequestHandler() {} - virtual ~CaptiveRequestHandler() {} + public: + bool canHandle(__unused AsyncWebServerRequest* request) const override { + return true; + } - bool canHandle(AsyncWebServerRequest *request){ - //request->addInterestingHeader("ANY"); - return true; - } - - void handleRequest(AsyncWebServerRequest *request) { - AsyncResponseStream *response = request->beginResponseStream("text/html"); - response->print("Captive Portal"); - response->print("

This is out captive portal front page.

"); - response->printf("

You were trying to reach: http://%s%s

", request->host().c_str(), request->url().c_str()); - response->printf("

Try opening this link instead

", WiFi.softAPIP().toString().c_str()); - response->print(""); - request->send(response); - } + void handleRequest(AsyncWebServerRequest* request) { + AsyncResponseStream* response = request->beginResponseStream("text/html"); + response->print("Captive Portal"); + response->print("

This is out captive portal front page.

"); + response->printf("

You were trying to reach: http://%s%s

", request->host().c_str(), request->url().c_str()); +#ifndef CONFIG_IDF_TARGET_ESP32H2 + response->printf("

Try opening this link instead

", WiFi.softAPIP().toString().c_str()); +#endif + response->print(""); + request->send(response); + } }; +void setup() { + Serial.begin(115200); + Serial.println(); + Serial.println("Configuring access point..."); + +#ifndef CONFIG_IDF_TARGET_ESP32H2 + if (!WiFi.softAP("esp-captive")) { + Serial.println("Soft AP creation failed."); + while (1) + ; + } -void setup(){ - //your other setup stuff... - WiFi.softAP("esp-captive"); dnsServer.start(53, "*", WiFi.softAPIP()); - server.addHandler(new CaptiveRequestHandler()).setFilter(ON_AP_FILTER);//only when requested from AP - //more handlers... +#endif + + server.addHandler(new CaptiveRequestHandler()).setFilter(ON_AP_FILTER); // only when requested from AP + // more handlers... server.begin(); } -void loop(){ +void loop() { dnsServer.processNextRequest(); } diff --git a/examples/ESP_AsyncFSBrowser/ESP_AsyncFSBrowser.ino b/examples/ESP_AsyncFSBrowser/ESP_AsyncFSBrowser.ino deleted file mode 100644 index 73451c520..000000000 --- a/examples/ESP_AsyncFSBrowser/ESP_AsyncFSBrowser.ino +++ /dev/null @@ -1,220 +0,0 @@ -#include -#ifdef ESP32 -#include -#include -#include -#include -#include -#elif defined(ESP8266) -#include -#include -#include -#endif -#include -#include - -// SKETCH BEGIN -AsyncWebServer server(80); -AsyncWebSocket ws("/ws"); -AsyncEventSource events("/events"); - -void onWsEvent(AsyncWebSocket * server, AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len){ - if(type == WS_EVT_CONNECT){ - Serial.printf("ws[%s][%u] connect\n", server->url(), client->id()); - client->printf("Hello Client %u :)", client->id()); - client->ping(); - } else if(type == WS_EVT_DISCONNECT){ - Serial.printf("ws[%s][%u] disconnect: %u\n", server->url(), client->id()); - } else if(type == WS_EVT_ERROR){ - Serial.printf("ws[%s][%u] error(%u): %s\n", server->url(), client->id(), *((uint16_t*)arg), (char*)data); - } else if(type == WS_EVT_PONG){ - Serial.printf("ws[%s][%u] pong[%u]: %s\n", server->url(), client->id(), len, (len)?(char*)data:""); - } else if(type == WS_EVT_DATA){ - AwsFrameInfo * info = (AwsFrameInfo*)arg; - String msg = ""; - if(info->final && info->index == 0 && info->len == len){ - //the whole message is in a single frame and we got all of it's data - Serial.printf("ws[%s][%u] %s-message[%llu]: ", server->url(), client->id(), (info->opcode == WS_TEXT)?"text":"binary", info->len); - - if(info->opcode == WS_TEXT){ - for(size_t i=0; i < info->len; i++) { - msg += (char) data[i]; - } - } else { - char buff[3]; - for(size_t i=0; i < info->len; i++) { - sprintf(buff, "%02x ", (uint8_t) data[i]); - msg += buff ; - } - } - Serial.printf("%s\n",msg.c_str()); - - if(info->opcode == WS_TEXT) - client->text("I got your text message"); - else - client->binary("I got your binary message"); - } else { - //message is comprised of multiple frames or the frame is split into multiple packets - if(info->index == 0){ - if(info->num == 0) - Serial.printf("ws[%s][%u] %s-message start\n", server->url(), client->id(), (info->message_opcode == WS_TEXT)?"text":"binary"); - Serial.printf("ws[%s][%u] frame[%u] start[%llu]\n", server->url(), client->id(), info->num, info->len); - } - - Serial.printf("ws[%s][%u] frame[%u] %s[%llu - %llu]: ", server->url(), client->id(), info->num, (info->message_opcode == WS_TEXT)?"text":"binary", info->index, info->index + len); - - if(info->opcode == WS_TEXT){ - for(size_t i=0; i < len; i++) { - msg += (char) data[i]; - } - } else { - char buff[3]; - for(size_t i=0; i < len; i++) { - sprintf(buff, "%02x ", (uint8_t) data[i]); - msg += buff ; - } - } - Serial.printf("%s\n",msg.c_str()); - - if((info->index + len) == info->len){ - Serial.printf("ws[%s][%u] frame[%u] end[%llu]\n", server->url(), client->id(), info->num, info->len); - if(info->final){ - Serial.printf("ws[%s][%u] %s-message end\n", server->url(), client->id(), (info->message_opcode == WS_TEXT)?"text":"binary"); - if(info->message_opcode == WS_TEXT) - client->text("I got your text message"); - else - client->binary("I got your binary message"); - } - } - } - } -} - - -const char* ssid = "*******"; -const char* password = "*******"; -const char * hostName = "esp-async"; -const char* http_username = "admin"; -const char* http_password = "admin"; - -void setup(){ - Serial.begin(115200); - Serial.setDebugOutput(true); - WiFi.mode(WIFI_AP_STA); - WiFi.softAP(hostName); - WiFi.begin(ssid, password); - if (WiFi.waitForConnectResult() != WL_CONNECTED) { - Serial.printf("STA: Failed!\n"); - WiFi.disconnect(false); - delay(1000); - WiFi.begin(ssid, password); - } - - //Send OTA events to the browser - ArduinoOTA.onStart([]() { events.send("Update Start", "ota"); }); - ArduinoOTA.onEnd([]() { events.send("Update End", "ota"); }); - ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) { - char p[32]; - sprintf(p, "Progress: %u%%\n", (progress/(total/100))); - events.send(p, "ota"); - }); - ArduinoOTA.onError([](ota_error_t error) { - if(error == OTA_AUTH_ERROR) events.send("Auth Failed", "ota"); - else if(error == OTA_BEGIN_ERROR) events.send("Begin Failed", "ota"); - else if(error == OTA_CONNECT_ERROR) events.send("Connect Failed", "ota"); - else if(error == OTA_RECEIVE_ERROR) events.send("Recieve Failed", "ota"); - else if(error == OTA_END_ERROR) events.send("End Failed", "ota"); - }); - ArduinoOTA.setHostname(hostName); - ArduinoOTA.begin(); - - MDNS.addService("http","tcp",80); - - SPIFFS.begin(); - - ws.onEvent(onWsEvent); - server.addHandler(&ws); - - events.onConnect([](AsyncEventSourceClient *client){ - client->send("hello!",NULL,millis(),1000); - }); - server.addHandler(&events); - -#ifdef ESP32 - server.addHandler(new SPIFFSEditor(SPIFFS, http_username,http_password)); -#elif defined(ESP8266) - server.addHandler(new SPIFFSEditor(http_username,http_password)); -#endif - - server.on("/heap", HTTP_GET, [](AsyncWebServerRequest *request){ - request->send(200, "text/plain", String(ESP.getFreeHeap())); - }); - - server.serveStatic("/", SPIFFS, "/").setDefaultFile("index.htm"); - - server.onNotFound([](AsyncWebServerRequest *request){ - Serial.printf("NOT_FOUND: "); - if(request->method() == HTTP_GET) - Serial.printf("GET"); - else if(request->method() == HTTP_POST) - Serial.printf("POST"); - else if(request->method() == HTTP_DELETE) - Serial.printf("DELETE"); - else if(request->method() == HTTP_PUT) - Serial.printf("PUT"); - else if(request->method() == HTTP_PATCH) - Serial.printf("PATCH"); - else if(request->method() == HTTP_HEAD) - Serial.printf("HEAD"); - else if(request->method() == HTTP_OPTIONS) - Serial.printf("OPTIONS"); - else - Serial.printf("UNKNOWN"); - Serial.printf(" http://%s%s\n", request->host().c_str(), request->url().c_str()); - - if(request->contentLength()){ - Serial.printf("_CONTENT_TYPE: %s\n", request->contentType().c_str()); - Serial.printf("_CONTENT_LENGTH: %u\n", request->contentLength()); - } - - int headers = request->headers(); - int i; - for(i=0;igetHeader(i); - Serial.printf("_HEADER[%s]: %s\n", h->name().c_str(), h->value().c_str()); - } - - int params = request->params(); - for(i=0;igetParam(i); - if(p->isFile()){ - Serial.printf("_FILE[%s]: %s, size: %u\n", p->name().c_str(), p->value().c_str(), p->size()); - } else if(p->isPost()){ - Serial.printf("_POST[%s]: %s\n", p->name().c_str(), p->value().c_str()); - } else { - Serial.printf("_GET[%s]: %s\n", p->name().c_str(), p->value().c_str()); - } - } - - request->send(404); - }); - server.onFileUpload([](AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final){ - if(!index) - Serial.printf("UploadStart: %s\n", filename.c_str()); - Serial.printf("%s", (const char*)data); - if(final) - Serial.printf("UploadEnd: %s (%u)\n", filename.c_str(), index+len); - }); - server.onRequestBody([](AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total){ - if(!index) - Serial.printf("BodyStart: %u\n", total); - Serial.printf("%s", (const char*)data); - if(index + len == total) - Serial.printf("BodyEnd: %u\n", total); - }); - server.begin(); -} - -void loop(){ - ArduinoOTA.handle(); -} diff --git a/examples/ESP_AsyncFSBrowser/data/.exclude.files b/examples/ESP_AsyncFSBrowser/data/.exclude.files deleted file mode 100644 index 955397fa2..000000000 --- a/examples/ESP_AsyncFSBrowser/data/.exclude.files +++ /dev/null @@ -1,2 +0,0 @@ -/*.js.gz -/.exclude.files diff --git a/examples/ESP_AsyncFSBrowser/data/ace.js.gz b/examples/ESP_AsyncFSBrowser/data/ace.js.gz deleted file mode 100644 index 7b175c1c9..000000000 Binary files a/examples/ESP_AsyncFSBrowser/data/ace.js.gz and /dev/null differ diff --git a/examples/ESP_AsyncFSBrowser/data/ext-searchbox.js.gz b/examples/ESP_AsyncFSBrowser/data/ext-searchbox.js.gz deleted file mode 100644 index cf5b49f6f..000000000 Binary files a/examples/ESP_AsyncFSBrowser/data/ext-searchbox.js.gz and /dev/null differ diff --git a/examples/ESP_AsyncFSBrowser/data/favicon.ico b/examples/ESP_AsyncFSBrowser/data/favicon.ico deleted file mode 100644 index 71b25fe6e..000000000 Binary files a/examples/ESP_AsyncFSBrowser/data/favicon.ico and /dev/null differ diff --git a/examples/ESP_AsyncFSBrowser/data/index.htm b/examples/ESP_AsyncFSBrowser/data/index.htm deleted file mode 100644 index 28f47e995..000000000 --- a/examples/ESP_AsyncFSBrowser/data/index.htm +++ /dev/null @@ -1,131 +0,0 @@ - - - - - - WebSocketTester - - - - -

-    
- $ -
- - diff --git a/examples/ESP_AsyncFSBrowser/data/mode-css.js.gz b/examples/ESP_AsyncFSBrowser/data/mode-css.js.gz deleted file mode 100644 index ebd6fe940..000000000 Binary files a/examples/ESP_AsyncFSBrowser/data/mode-css.js.gz and /dev/null differ diff --git a/examples/ESP_AsyncFSBrowser/data/mode-html.js.gz b/examples/ESP_AsyncFSBrowser/data/mode-html.js.gz deleted file mode 100644 index 26b535328..000000000 Binary files a/examples/ESP_AsyncFSBrowser/data/mode-html.js.gz and /dev/null differ diff --git a/examples/ESP_AsyncFSBrowser/data/mode-javascript.js.gz b/examples/ESP_AsyncFSBrowser/data/mode-javascript.js.gz deleted file mode 100644 index c0451c1c5..000000000 Binary files a/examples/ESP_AsyncFSBrowser/data/mode-javascript.js.gz and /dev/null differ diff --git a/examples/ESP_AsyncFSBrowser/data/worker-html.js.gz b/examples/ESP_AsyncFSBrowser/data/worker-html.js.gz deleted file mode 100644 index ec8aa87a9..000000000 Binary files a/examples/ESP_AsyncFSBrowser/data/worker-html.js.gz and /dev/null differ diff --git a/examples/Filters/Filters.ino b/examples/Filters/Filters.ino new file mode 100644 index 000000000..c29103bb1 --- /dev/null +++ b/examples/Filters/Filters.ino @@ -0,0 +1,124 @@ +// Reproduced issue https://github.com/ESP32Async/ESPAsyncWebServer/issues/26 + +#include +#ifdef ESP32 + #include + #include +#elif defined(ESP8266) + #include + #include +#elif defined(TARGET_RP2040) + #include + #include +#endif +#include "ESPAsyncWebServer.h" + +DNSServer dnsServer; +AsyncWebServer server(80); + +class CaptiveRequestHandler : public AsyncWebHandler { + public: + bool canHandle(__unused AsyncWebServerRequest* request) const override { + return true; + } + + void handleRequest(AsyncWebServerRequest* request) override { + AsyncResponseStream* response = request->beginResponseStream("text/html"); + response->print("Captive Portal"); + response->print("

This is out captive portal front page.

"); + response->printf("

You were trying to reach: http://%s%s

", request->host().c_str(), request->url().c_str()); +#ifndef CONFIG_IDF_TARGET_ESP32H2 + response->printf("

Try opening this link instead

", WiFi.softAPIP().toString().c_str()); +#endif + response->print(""); + request->send(response); + } +}; + +bool hit1 = false; +bool hit2 = false; + +void setup() { + Serial.begin(115200); + + server + .on("/", HTTP_GET, [](AsyncWebServerRequest* request) { + Serial.println("Captive portal request..."); +#ifndef CONFIG_IDF_TARGET_ESP32H2 + Serial.println("WiFi.localIP(): " + WiFi.localIP().toString()); +#endif + Serial.println("request->client()->localIP(): " + request->client()->localIP().toString()); +#if ESP_IDF_VERSION_MAJOR >= 5 + #ifndef CONFIG_IDF_TARGET_ESP32H2 + Serial.println("WiFi.type(): " + String((int)WiFi.localIP().type())); + #endif + Serial.println("request->client()->type(): " + String((int)request->client()->localIP().type())); +#endif +#ifndef CONFIG_IDF_TARGET_ESP32H2 + Serial.println(WiFi.localIP() == request->client()->localIP() ? "should be: ON_STA_FILTER" : "should be: ON_AP_FILTER"); + Serial.println(WiFi.localIP() == request->client()->localIP()); + Serial.println(WiFi.localIP().toString() == request->client()->localIP().toString()); +#endif + request->send(200, "text/plain", "This is the captive portal"); + hit1 = true; + }) + .setFilter(ON_AP_FILTER); + + server + .on("/", HTTP_GET, [](AsyncWebServerRequest* request) { + Serial.println("Website request..."); +#ifndef CONFIG_IDF_TARGET_ESP32H2 + Serial.println("WiFi.localIP(): " + WiFi.localIP().toString()); +#endif + Serial.println("request->client()->localIP(): " + request->client()->localIP().toString()); +#if ESP_IDF_VERSION_MAJOR >= 5 + #ifndef CONFIG_IDF_TARGET_ESP32H2 + Serial.println("WiFi.type(): " + String((int)WiFi.localIP().type())); + #endif + Serial.println("request->client()->type(): " + String((int)request->client()->localIP().type())); +#endif +#ifndef CONFIG_IDF_TARGET_ESP32H2 + Serial.println(WiFi.localIP() == request->client()->localIP() ? "should be: ON_STA_FILTER" : "should be: ON_AP_FILTER"); + Serial.println(WiFi.localIP() == request->client()->localIP()); + Serial.println(WiFi.localIP().toString() == request->client()->localIP().toString()); +#endif + request->send(200, "text/plain", "This is the website"); + hit2 = true; + }) + .setFilter(ON_STA_FILTER); + + // assert(WiFi.softAP("esp-captive-portal")); + // dnsServer.start(53, "*", WiFi.softAPIP()); + // server.begin(); + // Serial.println("Captive portal started!"); + + // while (!hit1) { + // dnsServer.processNextRequest(); + // yield(); + // } + // delay(1000); // Wait for the client to process the response + + // Serial.println("Captive portal opened, stopping it and connecting to WiFi..."); + // dnsServer.stop(); + // WiFi.softAPdisconnect(); + +#ifndef CONFIG_IDF_TARGET_ESP32H2 + WiFi.persistent(false); + WiFi.begin("IoT"); + while (WiFi.status() != WL_CONNECTED) { + delay(500); + } + Serial.println("Connected to WiFi with IP address: " + WiFi.localIP().toString()); +#endif + + server.begin(); + + // while (!hit2) { + // delay(10); + // } + // delay(1000); // Wait for the client to process the response + // ESP.restart(); +} + +void loop() { +} diff --git a/examples/Issue162/Issue162.ino b/examples/Issue162/Issue162.ino new file mode 100644 index 000000000..adc82d951 --- /dev/null +++ b/examples/Issue162/Issue162.ino @@ -0,0 +1,99 @@ +/** + * + * Connect to AP and run in bash: + * + * > while true; do echo "PING"; sleep 0.1; done | websocat ws://192.168.4.1/ws + * + */ +#include +#ifdef ESP8266 + #include +#endif +#ifdef ESP32 + #include +#endif +#include + +#include +AsyncWebServer server(80); +AsyncWebSocket ws("/ws"); + +void onWsEvent(AsyncWebSocket* server, AsyncWebSocketClient* client, AwsEventType type, void* arg, uint8_t* data, size_t len) { + if (type == WS_EVT_CONNECT) { + Serial.printf("Client #%" PRIu32 " connected.\n", client->id()); + } else if (type == WS_EVT_DISCONNECT) { + Serial.printf("Client #%" PRIu32 " disconnected.\n", client->id()); + } else if (type == WS_EVT_ERROR) { + Serial.printf("Client #%" PRIu32 " error.\n", client->id()); + } else if (type == WS_EVT_DATA) { + Serial.printf("Client #%" PRIu32 " len: %u\n", client->id(), len); + } else if (type == WS_EVT_PONG) { + Serial.printf("Client #%" PRIu32 " pong.\n", client->id()); + } else if (type == WS_EVT_PING) { + Serial.printf("Client #%" PRIu32 " ping.\n", client->id()); + } +} + +void setup() { + Serial.begin(115200); + + WiFi.mode(WIFI_AP); + WiFi.softAP("esp-captive"); + + ws.onEvent(onWsEvent); + server.addHandler(&ws); + + server.on("/close_all_ws_clients", HTTP_GET | HTTP_POST, [](AsyncWebServerRequest* request) { + Serial.println("Closing all WebSocket clients..."); + ws.closeAll(); + request->send(200, "application/json", "{\"status\":\"all clients closed\"}"); + }); + + server.on("/", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/html", R"rawliteral( + + + + + +

+ + + )rawliteral"); + }); + + server.begin(); +} + +uint32_t lastTime = 0; +void loop() { + if (millis() - lastTime > 5000) { + lastTime = millis(); + Serial.printf("Client count: %u\n", ws.count()); + } + ws.cleanupClients(); +} diff --git a/examples/Issue85/Issue85.ino b/examples/Issue85/Issue85.ino new file mode 100644 index 000000000..fa2aa5547 --- /dev/null +++ b/examples/Issue85/Issue85.ino @@ -0,0 +1,127 @@ +/** + * + * Connect to AP and run in bash: + * + * > while true; do echo "PING"; sleep 0.1; done | websocat ws://192.168.4.1/ws + * + */ +#include +#ifdef ESP8266 + #include +#endif +#ifdef ESP32 + #include +#endif +#include + +#include + +size_t msgCount = 0; +size_t window = 100; +std::list times; + +void connect_wifi() { + WiFi.mode(WIFI_AP); + WiFi.softAP("esp-captive"); + + // Serial.print("Connecting"); + // while (WiFi.status() != WL_CONNECTED) { + // delay(500); + // Serial.print("."); + // } + // Serial.println(); + + // Serial.print("Connected, IP address: "); + // Serial.println(WiFi.localIP()); +} + +void notFound(AsyncWebServerRequest* request) { + request->send(404, "text/plain", "Not found"); +} + +AsyncWebServer server(80); +AsyncWebSocket ws("/ws"); + +// initial stack +char* stack_start; + +void printStackSize() { + char stack; + Serial.print(F("stack size ")); + Serial.print(stack_start - &stack); + Serial.print(F(" | Heap free:")); + Serial.print(ESP.getFreeHeap()); +#ifdef ESP8266 + Serial.print(F(" frag:")); + Serial.print(ESP.getHeapFragmentation()); + Serial.print(F(" maxFreeBlock:")); + Serial.print(ESP.getMaxFreeBlockSize()); +#endif + Serial.println(); +} + +void onWsEventEmpty(AsyncWebSocket* server, AsyncWebSocketClient* client, AwsEventType type, void* arg, uint8_t* data, size_t len) { + msgCount++; + Serial.printf("count: %d\n", msgCount); + + times.push_back(millis()); + while (times.size() > window) + times.pop_front(); + if (times.size() == window) + Serial.printf("%f req/s\n", 1000.0 * window / (times.back() - times.front())); + + printStackSize(); + + client->text("PONG"); +} + +void serve_upload(AsyncWebServerRequest* request, const String& filename, size_t index, uint8_t* data, size_t len, bool final) { + Serial.print("> onUpload "); + Serial.print("index: "); + Serial.print(index); + Serial.print(" len:"); + Serial.print(len); + Serial.print(" final:"); + Serial.print(final); + Serial.println(); +} + +void setup() { + char stack; + stack_start = &stack; + + Serial.begin(115200); + Serial.println("\n\n\nStart"); + Serial.printf("stack_start: %p\n", stack_start); + + connect_wifi(); + + server.onNotFound(notFound); + + ws.onEvent(onWsEventEmpty); + server.addHandler(&ws); + + server.on("/upload", HTTP_POST, [](AsyncWebServerRequest* request) { request->send(200); }, serve_upload); + + server.begin(); + Serial.println("Server started"); +} + +String msg = ""; +uint32_t count = 0; +void loop() { + // ws.cleanupClients(); + // count += 1; + // // Concatenate some string, and clear it after some time + // static unsigned long millis_string = millis(); + // if (millis() - millis_string > 1) { + // millis_string += 100; + // if (count % 100 == 0) { + // // printStackSize(); + // // Serial.print(msg); + // msg = String(); + // } else { + // msg += 'T'; + // } + // } +} \ No newline at end of file diff --git a/examples/SSE_perftest/SSE_perftest.ino b/examples/SSE_perftest/SSE_perftest.ino new file mode 100644 index 000000000..ecabd019c --- /dev/null +++ b/examples/SSE_perftest/SSE_perftest.ino @@ -0,0 +1,257 @@ +// +// SSE server with a load generator +// it will auto adjust message push rate to minimize discards across all connected clients +// per second stats is printed to a serial console and also published as SSE ping message +// open /sse URL to start events generator + +#include +#ifdef ESP32 + #include + #include +#elif defined(ESP8266) + #include + #include +#elif defined(TARGET_RP2040) + #include + #include +#endif + +#include + +#if __has_include("ArduinoJson.h") + #include + #include + #include +#endif + +#include + +const char* htmlContent PROGMEM = R"( + + + + Sample HTML + + +

Hello, World!

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+ + +)"; + +const char* staticContent PROGMEM = R"( + + + + Sample HTML + + +

Hello, %IP%

+ + +)"; + +AsyncWebServer server(80); +AsyncEventSource events("/events"); + +///////////////////////////////////////////////////////////////////////////////////////////////////// + +const char* PARAM_MESSAGE PROGMEM = "message"; +const char* SSE_HTLM PROGMEM = R"( + + + + Server-Sent Events + + + +

Open your browser console!

+ + +)"; + +static const char* SSE_MSG = R"(Alice felt that this could not be denied, so she tried another question. 'What sort of people live about here?' 'In THAT direction,' the Cat said, waving its right paw round, 'lives a Hatter: and in THAT direction,' waving the other paw, 'lives a March Hare. Visit either you like: they're both mad.' +'But I don't want to go among mad people,' Alice remarked. 'Oh, you can't help that,' said the Cat: 'we're all mad here. I'm mad. You're mad.' 'How do you know I'm mad?' said Alice. +'You must be,' said the Cat, `or you wouldn't have come here.' Alice didn't think that proved it at all; however, she went on 'And how do you know that you're mad?' 'To begin with,' said the Cat, 'a dog's not mad. You grant that?' +)"; + +void notFound(AsyncWebServerRequest* request) { + request->send(404, "text/plain", "Not found"); +} + +static const char characters[] = "0123456789ABCDEF"; +static size_t charactersIndex = 0; + +void setup() { + + Serial.begin(115200); + +#ifndef CONFIG_IDF_TARGET_ESP32H2 + /* + WiFi.mode(WIFI_STA); + WiFi.begin("SSID", "passwd"); + if (WiFi.waitForConnectResult() != WL_CONNECTED) { + Serial.printf("WiFi Failed!\n"); + return; + } + Serial.print("IP Address: "); + Serial.println(WiFi.localIP()); + */ + + WiFi.mode(WIFI_AP); + WiFi.softAP("esp-captive"); +#endif + + server.on("/", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/html", staticContent); + }); + + events.onConnect([](AsyncEventSourceClient* client) { + if (client->lastId()) { + Serial.printf("SSE Client reconnected! Last message ID that it gat is: %" PRIu32 "\n", client->lastId()); + } + client->send("hello!", NULL, millis(), 1000); + }); + + server.on("/sse", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/html", SSE_HTLM); + }); + + // go to http://192.168.4.1/sse + server.addHandler(&events); + + server.onNotFound(notFound); + + server.begin(); +} + +uint32_t lastSSE = 0; +uint32_t deltaSSE = 25; +uint32_t messagesSSE = 4; // how many messages to q each time +uint32_t sse_disc{0}, sse_enq{0}, sse_penq{0}, sse_second{0}; + +AsyncEventSource::SendStatus enqueue() { + AsyncEventSource::SendStatus state = events.send(SSE_MSG, "message"); + if (state == AsyncEventSource::SendStatus::DISCARDED) + ++sse_disc; + else if (state == AsyncEventSource::SendStatus::ENQUEUED) { + ++sse_enq; + } else + ++sse_penq; + + return state; +} + +void loop() { + uint32_t now = millis(); + if (now - lastSSE >= deltaSSE) { + // enqueue messages + for (uint32_t i = 0; i != messagesSSE; ++i) { + auto err = enqueue(); + if (err == AsyncEventSource::SendStatus::DISCARDED || err == AsyncEventSource::SendStatus::PARTIALLY_ENQUEUED) { + // throttle messaging a bit + lastSSE = now + deltaSSE; + break; + } + } + + lastSSE = millis(); + } + + if (now - sse_second > 1000) { + String s; + s.reserve(100); + s = "Ping:"; + s += now / 1000; + s += " clients:"; + s += events.count(); + s += " disc:"; + s += sse_disc; + s += " enq:"; + s += sse_enq; + s += " partial:"; + s += sse_penq; + s += " avg wait:"; + s += events.avgPacketsWaiting(); + s += " heap:"; + s += ESP.getFreeHeap() / 1024; + + events.send(s, "heartbeat", now); + Serial.println(); + Serial.println(s); + + // if we see discards or partial enqueues, let's decrease message rate, else - increase. So that we can come to a max sustained message rate + if (sse_disc || sse_penq) + ++deltaSSE; + else if (deltaSSE > 5) + --deltaSSE; + + sse_disc = sse_enq = sse_penq = 0; + sse_second = now; + } +} diff --git a/examples/SimpleServer/SimpleServer.ino b/examples/SimpleServer/SimpleServer.ino new file mode 100644 index 000000000..8a2ccfe34 --- /dev/null +++ b/examples/SimpleServer/SimpleServer.ino @@ -0,0 +1,794 @@ +// +// A simple server implementation showing how to: +// * serve static messages +// * read GET and POST parameters +// * handle missing pages / 404s +// + +#include +#ifdef ESP32 + #include + #include +#elif defined(ESP8266) + #include + #include +#elif defined(TARGET_RP2040) + #include + #include +#endif + +#include + +#if __has_include("ArduinoJson.h") + #include + #include + #include +#endif + +#include + +const char* htmlContent PROGMEM = R"( + + + + Sample HTML + + +

Hello, World!

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin euismod, purus a euismod + rhoncus, urna ipsum cursus massa, eu dictum tellus justo ac justo. Quisque ullamcorper + arcu nec tortor ullamcorper, vel fermentum justo fermentum. Vivamus sed velit ut elit + accumsan congue ut ut enim. Ut eu justo eu lacus varius gravida ut a tellus. Nulla facilisi. + Integer auctor consectetur ultricies. Fusce feugiat, mi sit amet bibendum viverra, orci leo + dapibus elit, id varius sem dui id lacus.

+ + +)"; + +const size_t htmlContentLength = strlen_P(htmlContent); + +const char* staticContent PROGMEM = R"( + + + + Sample HTML + + +

Hello, %IP%

+ + +)"; + +AsyncWebServer server(80); +AsyncEventSource events("/events"); +AsyncWebSocket ws("/ws"); + +///////////////////////////////////////////////////////////////////////////////////////////////////// +// Middlewares +///////////////////////////////////////////////////////////////////////////////////////////////////// + +// log incoming requests +AsyncLoggingMiddleware requestLogger; + +// CORS +AsyncCorsMiddleware cors; + +// maximum 5 requests per 10 seconds +AsyncRateLimitMiddleware rateLimit; + +// filter out specific headers from the incoming request +AsyncHeaderFilterMiddleware headerFilter; + +// remove all headers from the incoming request except the ones provided in the constructor +AsyncHeaderFreeMiddleware headerFree; + +// basicAuth +AsyncAuthenticationMiddleware basicAuth; +AsyncAuthenticationMiddleware basicAuthHash; + +// simple digest authentication +AsyncAuthenticationMiddleware digestAuth; +AsyncAuthenticationMiddleware digestAuthHash; + +// complex authentication which adds request attributes for the next middlewares and handler +AsyncMiddlewareFunction complexAuth([](AsyncWebServerRequest* request, ArMiddlewareNext next) { + if (!request->authenticate("user", "password")) { + return request->requestAuthentication(); + } + request->setAttribute("user", "Mathieu"); + request->setAttribute("role", "staff"); + + next(); + + request->getResponse()->addHeader("X-Rate-Limit", "200"); +}); + +AsyncAuthorizationMiddleware authz([](AsyncWebServerRequest* request) { return request->getAttribute("role") == "staff"; }); + +int wsClients = 0; + +///////////////////////////////////////////////////////////////////////////////////////////////////// + +const char* PARAM_MESSAGE PROGMEM = "message"; +const char* SSE_HTLM PROGMEM = R"( + + + + Server-Sent Events + + + +

Open your browser console!

+ + +)"; + +void notFound(AsyncWebServerRequest* request) { + request->send(404, "text/plain", "Not found"); +} + +#if __has_include("ArduinoJson.h") +AsyncCallbackJsonWebHandler* jsonHandler = new AsyncCallbackJsonWebHandler("/json2"); +AsyncCallbackMessagePackWebHandler* msgPackHandler = new AsyncCallbackMessagePackWebHandler("/msgpack2"); +#endif + +static const char characters[] = "0123456789ABCDEF"; +static size_t charactersIndex = 0; + +void setup() { + + Serial.begin(115200); + +#ifndef CONFIG_IDF_TARGET_ESP32H2 + // WiFi.mode(WIFI_STA); + // WiFi.begin("YOUR_SSID", "YOUR_PASSWORD"); + // if (WiFi.waitForConnectResult() != WL_CONNECTED) { + // Serial.printf("WiFi Failed!\n"); + // return; + // } + // Serial.print("IP Address: "); + // Serial.println(WiFi.localIP()); + + WiFi.mode(WIFI_AP); + WiFi.softAP("esp-captive"); +#endif + +#ifdef ESP32 + LittleFS.begin(true); +#else + LittleFS.begin(); +#endif + + { + File f = LittleFS.open("/index.txt", "w"); + if (f) { + for (size_t c = 0; c < sizeof(characters); c++) { + for (size_t i = 0; i < 1024; i++) { + f.print(characters[c]); + } + } + f.close(); + } + } + + { + File f = LittleFS.open("/index.html", "w"); + if (f) { + f.print(staticContent); + f.close(); + } + } + + // curl -v -X GET http://192.168.4.1/handler-not-sending-response + server.on("/handler-not-sending-response", HTTP_GET, [](AsyncWebServerRequest* request) { + // handler forgot to send a response to the client => 501 Not Implemented + }); + + // This is possible to replace a response. + // the previous one will be deleted. + // response sending happens when the handler returns. + // curl -v -X GET http://192.168.4.1/replace + server.on("/replace", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/plain", "Hello, world"); + // oups! finally we want to send a different response + request->send(400, "text/plain", "validation error"); +#ifndef TARGET_RP2040 + Serial.printf("Free heap: %" PRIu32 "\n", ESP.getFreeHeap()); +#endif + }); + + /////////////////////////////////////////////////////////////////////// + // Request header manipulations + /////////////////////////////////////////////////////////////////////// + + // curl -v -X GET -H "x-remove-me: value" http://192.168.4.1/headers + server.on("/headers", HTTP_GET, [](AsyncWebServerRequest* request) { + Serial.printf("Request Headers:\n"); + for (auto& h : request->getHeaders()) + Serial.printf("Request Header: %s = %s\n", h.name().c_str(), h.value().c_str()); + + // remove x-remove-me header + request->removeHeader("x-remove-me"); + Serial.printf("Request Headers:\n"); + for (auto& h : request->getHeaders()) + Serial.printf("Request Header: %s = %s\n", h.name().c_str(), h.value().c_str()); + + std::vector headers; + request->getHeaderNames(headers); + for (auto& h : headers) + Serial.printf("Request Header Name: %s\n", h); + + request->send(200); + }); + + /////////////////////////////////////////////////////////////////////// + // Middlewares at server level (will apply to all requests) + /////////////////////////////////////////////////////////////////////// + + requestLogger.setOutput(Serial); + + basicAuth.setUsername("admin"); + basicAuth.setPassword("admin"); + basicAuth.setRealm("MyApp"); + basicAuth.setAuthFailureMessage("Authentication failed"); + basicAuth.setAuthType(AsyncAuthType::AUTH_BASIC); + basicAuth.generateHash(); + + basicAuthHash.setUsername("admin"); + basicAuthHash.setPasswordHash("YWRtaW46YWRtaW4="); // BASE64(admin:admin) + basicAuthHash.setRealm("MyApp"); + basicAuthHash.setAuthFailureMessage("Authentication failed"); + basicAuthHash.setAuthType(AsyncAuthType::AUTH_BASIC); + + digestAuth.setUsername("admin"); + digestAuth.setPassword("admin"); + digestAuth.setRealm("MyApp"); + digestAuth.setAuthFailureMessage("Authentication failed"); + digestAuth.setAuthType(AsyncAuthType::AUTH_DIGEST); + digestAuth.generateHash(); + + digestAuthHash.setUsername("admin"); + digestAuthHash.setPasswordHash("f499b71f9a36d838b79268e145e132f7"); // MD5(user:realm:pass) + digestAuthHash.setRealm("MyApp"); + digestAuthHash.setAuthFailureMessage("Authentication failed"); + digestAuthHash.setAuthType(AsyncAuthType::AUTH_DIGEST); + + rateLimit.setMaxRequests(5); + rateLimit.setWindowSize(10); + + headerFilter.filter("X-Remove-Me"); + headerFree.keep("X-Keep-Me"); + headerFree.keep("host"); + + cors.setOrigin("http://192.168.4.1"); + cors.setMethods("POST, GET, OPTIONS, DELETE"); + cors.setHeaders("X-Custom-Header"); + cors.setAllowCredentials(false); + cors.setMaxAge(600); + +#ifndef PERF_TEST + // global middleware + server.addMiddleware(&requestLogger); + server.addMiddlewares({&rateLimit, &cors, &headerFilter}); +#endif + + // Test CORS preflight request + // curl -v -X OPTIONS -H "origin: http://192.168.4.1" http://192.168.4.1/middleware/cors + server.on("/middleware/cors", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/plain", "Hello, world!"); + }); + + // curl -v -X GET -H "x-remove-me: value" http://192.168.4.1/middleware/test-header-filter + // - requestLogger will log the incoming headers (including x-remove-me) + // - headerFilter will remove x-remove-me header + // - handler will log the remaining headers + server.on("/middleware/test-header-filter", HTTP_GET, [](AsyncWebServerRequest* request) { + for (auto& h : request->getHeaders()) + Serial.printf("Request Header: %s = %s\n", h.name().c_str(), h.value().c_str()); + request->send(200); + }); + + // curl -v -X GET -H "x-keep-me: value" http://192.168.4.1/middleware/test-header-free + // - requestLogger will log the incoming headers (including x-keep-me) + // - headerFree will remove all headers except x-keep-me and host + // - handler will log the remaining headers (x-keep-me and host) + server.on("/middleware/test-header-free", HTTP_GET, [](AsyncWebServerRequest* request) { + for (auto& h : request->getHeaders()) + Serial.printf("Request Header: %s = %s\n", h.name().c_str(), h.value().c_str()); + request->send(200); + }) + .addMiddleware(&headerFree); + + // basic authentication method + // curl -v -X GET -H "origin: http://192.168.4.1" -u admin:admin http://192.168.4.1/middleware/auth-basic + server.on("/middleware/auth-basic", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/plain", "Hello, world!"); + }) + .addMiddleware(&basicAuth); + + // basic authentication method with hash + // curl -v -X GET -H "origin: http://192.168.4.1" -u admin:admin http://192.168.4.1/middleware/auth-basic-hash + server.on("/middleware/auth-basic-hash", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/plain", "Hello, world!"); + }) + .addMiddleware(&basicAuthHash); + + // digest authentication + // curl -v -X GET -H "origin: http://192.168.4.1" -u admin:admin --digest http://192.168.4.1/middleware/auth-digest + server.on("/middleware/auth-digest", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/plain", "Hello, world!"); + }) + .addMiddleware(&digestAuth); + + // digest authentication with hash + // curl -v -X GET -H "origin: http://192.168.4.1" -u admin:admin --digest http://192.168.4.1/middleware/auth-digest-hash + server.on("/middleware/auth-digest-hash", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/plain", "Hello, world!"); + }) + .addMiddleware(&digestAuthHash); + + // test digest auth with cors + // curl -v -X GET -H "origin: http://192.168.4.1" --digest -u user:password http://192.168.4.1/middleware/auth-custom + server.on("/middleware/auth-custom", HTTP_GET, [](AsyncWebServerRequest* request) { + String buffer = "Hello "; + buffer.concat(request->getAttribute("user")); + buffer.concat(" with role: "); + buffer.concat(request->getAttribute("role")); + request->send(200, "text/plain", buffer); + }) + .addMiddlewares({&complexAuth, &authz}); + + /////////////////////////////////////////////////////////////////////// + + // curl -v -X GET -H "origin: http://192.168.4.1" http://192.168.4.1/redirect + // curl -v -X POST -H "origin: http://192.168.4.1" http://192.168.4.1/redirect + server.on("/redirect", HTTP_GET | HTTP_POST, [](AsyncWebServerRequest* request) { + request->redirect("/"); + }); + + // PERF TEST: + // > brew install autocannon + // > autocannon -c 10 -w 10 -d 20 http://192.168.4.1 + // > autocannon -c 16 -w 16 -d 20 http://192.168.4.1 + server.on("/", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/html", htmlContent); + }); + + // curl -v -X GET http://192.168.4.1/index.txt + server.serveStatic("/index.txt", LittleFS, "/index.txt"); + + // curl -v -X GET http://192.168.4.1/index-private.txt + server.serveStatic("/index-private.txt", LittleFS, "/index.txt").setAuthentication("admin", "admin"); + + // ServeStatic static is used to serve static output which never changes over time. + // This special endpoints automatyically adds caching headers. + // If a template processor is used, it must enure that the outputed content will always be the ame over time and never changes. + // Otherwise, do not use serveStatic. + // Example below: IP never changes. + // curl -v -X GET http://192.168.4.1/index-static.html + server.serveStatic("/index-static.html", LittleFS, "/index.html").setTemplateProcessor([](const String& var) -> String { + if (var == "IP") { + // for CI, commented out since H2 board doesn ot support WiFi + // return WiFi.localIP().toString(); + // return WiFi.softAPIP().toString(); + return "127.0.0..1"; + } + return emptyString; + }); + + // to serve a template with dynamic content (output changes over time), use normal + // Example below: content changes over tinme do not use serveStatic. + // curl -v -X GET http://192.168.4.1/index-dynamic.html + server.on("/index-dynamic.html", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(LittleFS, "/index.html", "text/html", false, [](const String& var) -> String { + if (var == "IP") + return String(random(0, 1000)); + return emptyString; + }); + }); + + // Issue #14: assert failed: tcp_update_rcv_ann_wnd (needs help to test fix) + // > curl -v http://192.168.4.1/issue-14 + pinMode(4, OUTPUT); + server.on("/issue-14", HTTP_GET, [](AsyncWebServerRequest* request) { + digitalWrite(4, HIGH); + request->send(LittleFS, "/index.txt", "text/pain"); + delay(500); + digitalWrite(4, LOW); + }); + + /* + Chunked encoding test: sends 16k of characters. + ❯ curl -N -v -X GET -H "origin: http://192.168.4.1" http://192.168.4.1/chunk + */ + server.on("/chunk", HTTP_HEAD | HTTP_GET, [](AsyncWebServerRequest* request) { + AsyncWebServerResponse* response = request->beginChunkedResponse("text/html", [](uint8_t* buffer, size_t maxLen, size_t index) -> size_t { + if (index >= 16384) + return 0; + memset(buffer, characters[charactersIndex], maxLen); + charactersIndex = (charactersIndex + 1) % sizeof(characters); + return maxLen; + }); + request->send(response); + }); + + // curl -N -v -X GET http://192.168.4.1/chunked.html --output - + // curl -N -v -X GET -H "if-none-match: 4272" http://192.168.4.1/chunked.html --output - + server.on("/chunked.html", HTTP_GET, [](AsyncWebServerRequest* request) { + String len = String(htmlContentLength); + + if (request->header(asyncsrv::T_INM) == len) { + request->send(304); + return; + } + + AsyncWebServerResponse* response = request->beginChunkedResponse("text/html", [](uint8_t* buffer, size_t maxLen, size_t index) -> size_t { + Serial.printf("%u / %u\n", index, htmlContentLength); + + // finished ? + if (htmlContentLength <= index) { + Serial.println("finished"); + return 0; + } + + // serve a maximum of 1024 or maxLen bytes of the remaining content + const int chunkSize = min((size_t)1024, min(maxLen, htmlContentLength - index)); + Serial.printf("sending: %u\n", chunkSize); + + memcpy(buffer, htmlContent + index, chunkSize); + + return chunkSize; + }); + + response->addHeader(asyncsrv::T_Cache_Control, "public,max-age=60"); + response->addHeader(asyncsrv::T_ETag, len); + + request->send(response); + }); + + // time curl -N -v -G -d 'd=3000' -d 'l=10000' http://192.168.4.1/slow.html --output - + server.on("/slow.html", HTTP_GET, [](AsyncWebServerRequest* request) { + uint32_t d = request->getParam("d")->value().toInt(); + uint32_t l = request->getParam("l")->value().toInt(); + Serial.printf("d = %" PRIu32 ", l = %" PRIu32 "\n", d, l); + AsyncWebServerResponse* response = request->beginChunkedResponse("text/html", [d, l](uint8_t* buffer, size_t maxLen, size_t index) -> size_t { + Serial.printf("%u\n", index); + // finished ? + if (index >= l) + return 0; + + // slow down the task by 2 seconds + // to simulate some heavy processing, like SD card reading + delay(d); + + memset(buffer, characters[charactersIndex], 256); + charactersIndex = (charactersIndex + 1) % sizeof(characters); + return 256; + }); + + request->send(response); + }); + + /* + ❯ curl -I -X HEAD http://192.168.4.1/download + HTTP/1.1 200 OK + Content-Length: 1024 + Content-Type: application/octet-stream + Connection: close + Accept-Ranges: bytes + */ + // Ref: https://github.com/mathieucarbou/ESPAsyncWebServer/pull/80 + server.on("/download", HTTP_HEAD | HTTP_GET, [](AsyncWebServerRequest* request) { + if (request->method() == HTTP_HEAD) { + AsyncWebServerResponse* response = request->beginResponse(200, "application/octet-stream"); + response->addHeader(asyncsrv::T_Accept_Ranges, "bytes"); + response->addHeader(asyncsrv::T_Content_Length, 10); + response->setContentLength(1024); // overrides previous one + response->addHeader(asyncsrv::T_Content_Type, "foo"); + response->setContentType("application/octet-stream"); // overrides previous one + // ... + request->send(response); + } else { + // ... + } + }); + + // Send a GET request to /get?message= + server.on("/get", HTTP_GET, [](AsyncWebServerRequest* request) { + String message; + if (request->hasParam(PARAM_MESSAGE)) { + message = request->getParam(PARAM_MESSAGE)->value(); + } else { + message = "No message sent"; + } + request->send(200, "text/plain", "Hello, GET: " + message); + }); + + // Send a POST request to /post with a form field message set to + server.on("/post", HTTP_POST, [](AsyncWebServerRequest* request) { + String message; + if (request->hasParam(PARAM_MESSAGE, true)) { + message = request->getParam(PARAM_MESSAGE, true)->value(); + } else { + message = "No message sent"; + } + request->send(200, "text/plain", "Hello, POST: " + message); + }); + +#if __has_include("ArduinoJson.h") + // JSON + + // sends JSON + // curl -v -X GET http://192.168.4.1/json1 + server.on("/json1", HTTP_GET, [](AsyncWebServerRequest* request) { + AsyncJsonResponse* response = new AsyncJsonResponse(); + JsonObject root = response->getRoot().to(); + root["hello"] = "world"; + response->setLength(); + request->send(response); + }); + + // curl -v -X GET http://192.168.4.1/json2 + server.on("/json2", HTTP_GET, [](AsyncWebServerRequest* request) { + AsyncResponseStream* response = request->beginResponseStream("application/json"); + JsonDocument doc; + JsonObject root = doc.to(); + root["foo"] = "bar"; + serializeJson(root, *response); + request->send(response); + }); + + // curl -v -X POST -H 'Content-Type: application/json' -d '{"name":"You"}' http://192.168.4.1/json2 + // curl -v -X PUT -H 'Content-Type: application/json' -d '{"name":"You"}' http://192.168.4.1/json2 + jsonHandler->setMethod(HTTP_POST | HTTP_PUT); + jsonHandler->onRequest([](AsyncWebServerRequest* request, JsonVariant& json) { + serializeJson(json, Serial); + AsyncJsonResponse* response = new AsyncJsonResponse(); + JsonObject root = response->getRoot().to(); + root["hello"] = json.as()["name"]; + response->setLength(); + request->send(response); + }); + + // MessagePack + + // receives MessagePack and sends MessagePack + msgPackHandler->onRequest([](AsyncWebServerRequest* request, JsonVariant& json) { + // JsonObject jsonObj = json.as(); + // ... + + AsyncMessagePackResponse* response = new AsyncMessagePackResponse(); + JsonObject root = response->getRoot().to(); + root["hello"] = "world"; + response->setLength(); + request->send(response); + }); + + // sends MessagePack + server.on("/msgpack1", HTTP_GET, [](AsyncWebServerRequest* request) { + AsyncMessagePackResponse* response = new AsyncMessagePackResponse(); + JsonObject root = response->getRoot().to(); + root["hello"] = "world"; + response->setLength(); + request->send(response); + }); +#endif + + events.onConnect([](AsyncEventSourceClient* client) { + if (client->lastId()) { + Serial.printf("SSE Client reconnected! Last message ID that it gat is: %" PRIu32 "\n", client->lastId()); + } + client->send("hello!", NULL, millis(), 1000); + }); + + server.on("/sse", HTTP_GET, [](AsyncWebServerRequest* request) { + request->send(200, "text/html", SSE_HTLM); + }); + + ws.onEvent([](AsyncWebSocket* server, AsyncWebSocketClient* client, AwsEventType type, void* arg, uint8_t* data, size_t len) { + (void)len; + if (type == WS_EVT_CONNECT) { + wsClients++; + ws.textAll("new client connected"); + Serial.println("ws connect"); + client->setCloseClientOnQueueFull(false); + client->ping(); + } else if (type == WS_EVT_DISCONNECT) { + wsClients--; + ws.textAll("client disconnected"); + Serial.println("ws disconnect"); + } else if (type == WS_EVT_ERROR) { + Serial.println("ws error"); + } else if (type == WS_EVT_PONG) { + Serial.println("ws pong"); + } else if (type == WS_EVT_DATA) { + AwsFrameInfo* info = (AwsFrameInfo*)arg; + String msg = ""; + if (info->final && info->index == 0 && info->len == len) { + if (info->opcode == WS_TEXT) { + data[len] = 0; + Serial.printf("ws text: %s\n", (char*)data); + } + } + } + }); + + // SSS endpoints + // sends a message every 10 ms + // + // go to http://192.168.4.1/sse + // > curl -v -N -H "Accept: text/event-stream" http://192.168.4.1/events + // + // some perf tests: + // launch 16 concurrent workers for 30 seconds + // > for i in {1..10}; do ( count=$(gtimeout 30 curl -s -N -H "Accept: text/event-stream" http://192.168.4.1/events 2>&1 | grep -c "^data:"); echo "Total: $count events, $(echo "$count / 4" | bc -l) events / second" ) & done; + // > for i in {1..16}; do ( count=$(gtimeout 30 curl -s -N -H "Accept: text/event-stream" http://192.168.4.1/events 2>&1 | grep -c "^data:"); echo "Total: $count events, $(echo "$count / 4" | bc -l) events / second" ) & done; + // + // With AsyncTCP, with 16 workers: a lot of "Event message queue overflow: discard message", no crash + // + // Total: 1711 events, 427.75 events / second + // Total: 1711 events, 427.75 events / second + // Total: 1626 events, 406.50 events / second + // Total: 1562 events, 390.50 events / second + // Total: 1706 events, 426.50 events / second + // Total: 1659 events, 414.75 events / second + // Total: 1624 events, 406.00 events / second + // Total: 1706 events, 426.50 events / second + // Total: 1487 events, 371.75 events / second + // Total: 1573 events, 393.25 events / second + // Total: 1569 events, 392.25 events / second + // Total: 1559 events, 389.75 events / second + // Total: 1560 events, 390.00 events / second + // Total: 1562 events, 390.50 events / second + // Total: 1626 events, 406.50 events / second + // + // With AsyncTCP, with 10 workers: + // + // Total: 2038 events, 509.50 events / second + // Total: 2120 events, 530.00 events / second + // Total: 2119 events, 529.75 events / second + // Total: 2038 events, 509.50 events / second + // Total: 2037 events, 509.25 events / second + // Total: 2119 events, 529.75 events / second + // Total: 2119 events, 529.75 events / second + // Total: 2120 events, 530.00 events / second + // Total: 2038 events, 509.50 events / second + // Total: 2038 events, 509.50 events / second + // + // With AsyncTCPSock, with 16 workers: ESP32 CRASH !!! + // + // With AsyncTCPSock, with 10 workers: + // + // Total: 1242 events, 310.50 events / second + // Total: 1242 events, 310.50 events / second + // Total: 1242 events, 310.50 events / second + // Total: 1242 events, 310.50 events / second + // Total: 1181 events, 295.25 events / second + // Total: 1182 events, 295.50 events / second + // Total: 1240 events, 310.00 events / second + // Total: 1181 events, 295.25 events / second + // Total: 1181 events, 295.25 events / second + // Total: 1183 events, 295.75 events / second + // + server.addHandler(&events); + + // Run in terminal 1: websocat ws://192.168.4.1/ws => stream data + // Run in terminal 2: websocat ws://192.168.4.1/ws => stream data + // Run in terminal 3: websocat ws://192.168.4.1/ws => should fail: + /* +❯ websocat ws://192.168.4.1/ws +websocat: WebSocketError: WebSocketError: Received unexpected status code (503 Service Unavailable) +websocat: error running + */ + server.addHandler(&ws).addMiddleware([](AsyncWebServerRequest* request, ArMiddlewareNext next) { + if (ws.count() > 2) { + // too many clients - answer back immediately and stop processing next middlewares and handler + request->send(503, "text/plain", "Server is busy"); + } else { + // process next middleware and at the end the handler + next(); + } + }); + + // Reset connection on HTTP request: + // for i in {1..20}; do curl -v -X GET https://192.168.4.1:80; done; + // The heap size should not decrease over time. + +#if __has_include("ArduinoJson.h") + server.addHandler(jsonHandler); + server.addHandler(msgPackHandler); +#endif + + server.onNotFound(notFound); + + server.begin(); +} + +uint32_t lastSSE = 0; +uint32_t deltaSSE = 10; + +uint32_t lastWS = 0; +uint32_t deltaWS = 100; + +uint32_t lastHeap = 0; + +void loop() { + uint32_t now = millis(); + if (now - lastSSE >= deltaSSE) { + events.send(String("ping-") + now, "heartbeat", now); + lastSSE = millis(); + } + if (now - lastWS >= deltaWS) { + ws.printfAll("kp%.4f", (10.0 / 3.0)); + // for (auto& client : ws.getClients()) { + // client.printf("kp%.4f", (10.0 / 3.0)); + // } + lastWS = millis(); + } +#ifdef ESP32 + if (now - lastHeap >= 2000) { + Serial.printf("Free heap: %" PRIu32 "\n", ESP.getFreeHeap()); + lastHeap = now; + } +#endif +} diff --git a/examples/StreamFiles/StreamConcat.h b/examples/StreamFiles/StreamConcat.h new file mode 100644 index 000000000..c1e192769 --- /dev/null +++ b/examples/StreamFiles/StreamConcat.h @@ -0,0 +1,37 @@ +#pragma once + +#include + +class StreamConcat : public Stream { + public: + StreamConcat(Stream* s1, Stream* s2) : _s1(s1), _s2(s2) {} + + size_t write(__unused const uint8_t* p, __unused size_t n) override { return 0; } + size_t write(__unused uint8_t c) override { return 0; } + void flush() override {} + + int available() override { return _s1->available() + _s2->available(); } + + int read() override { + int c = _s1->read(); + return c != -1 ? c : _s2->read(); + } + +#if defined(TARGET_RP2040) + size_t readBytes(char* buffer, size_t length) { +#else + size_t readBytes(char* buffer, size_t length) override { +#endif + size_t count = _s1->readBytes(buffer, length); + return count > 0 ? count : _s2->readBytes(buffer, length); + } + + int peek() override { + int c = _s1->peek(); + return c != -1 ? c : _s2->peek(); + } + + private: + Stream* _s1; + Stream* _s2; +}; diff --git a/examples/StreamFiles/StreamFiles.ino b/examples/StreamFiles/StreamFiles.ino new file mode 100644 index 000000000..a0d6b9f60 --- /dev/null +++ b/examples/StreamFiles/StreamFiles.ino @@ -0,0 +1,89 @@ +#include +#include +#ifdef ESP32 + #include + #include +#elif defined(ESP8266) + #include + #include +#elif defined(TARGET_RP2040) + #include + #include +#endif + +#include +#include +#include + +#include "StreamConcat.h" + +DNSServer dnsServer; +AsyncWebServer server(80); + +void setup() { + Serial.begin(115200); + + LittleFS.begin(); + +#ifndef CONFIG_IDF_TARGET_ESP32H2 + WiFi.mode(WIFI_AP); + WiFi.softAP("esp-captive"); + + dnsServer.start(53, "*", WiFi.softAPIP()); +#endif + + File file1 = LittleFS.open("/header.html", "w"); + file1.print("ESP Captive Portal"); + file1.close(); + + File file2 = LittleFS.open("/body.html", "w"); + file2.print("

Welcome to ESP Captive Portal

"); + file2.close(); + + File file3 = LittleFS.open("/footer.html", "w"); + file3.print(""); + file3.close(); + + server.on("/", HTTP_GET, [](AsyncWebServerRequest* request) { + File header = LittleFS.open("/header.html", "r"); + File body = LittleFS.open("/body.html", "r"); + StreamConcat stream1(&header, &body); + + StreamString content; +#if defined(TARGET_RP2040) + content.printf("FreeHeap: %d", rp2040.getFreeHeap()); +#else + content.printf("FreeHeap: %" PRIu32, ESP.getFreeHeap()); +#endif + StreamConcat stream2 = StreamConcat(&stream1, &content); + + File footer = LittleFS.open("/footer.html", "r"); + StreamConcat stream3 = StreamConcat(&stream2, &footer); + + request->send(stream3, "text/html", stream3.available()); + header.close(); + body.close(); + footer.close(); + }); + + server.onNotFound([](AsyncWebServerRequest* request) { + request->send(404, "text/plain", "Not found"); + }); + + server.begin(); +} + +uint32_t last = 0; + +void loop() { + // dnsServer.processNextRequest(); + + if (millis() - last > 2000) { +#if defined(TARGET_RP2040) + Serial.printf("FreeHeap: %d", rp2040.getFreeHeap()); +#else + Serial.printf("FreeHeap: %" PRIu32, ESP.getFreeHeap()); +#endif + last = millis(); + } +} \ No newline at end of file diff --git a/examples/simple_server/simple_server.ino b/examples/simple_server/simple_server.ino deleted file mode 100644 index bdbcf60dc..000000000 --- a/examples/simple_server/simple_server.ino +++ /dev/null @@ -1,74 +0,0 @@ -// -// A simple server implementation showing how to: -// * serve static messages -// * read GET and POST parameters -// * handle missing pages / 404s -// - -#include -#ifdef ESP32 -#include -#include -#elif defined(ESP8266) -#include -#include -#endif -#include - -AsyncWebServer server(80); - -const char* ssid = "YOUR_SSID"; -const char* password = "YOUR_PASSWORD"; - -const char* PARAM_MESSAGE = "message"; - -void notFound(AsyncWebServerRequest *request) { - request->send(404, "text/plain", "Not found"); -} - -void setup() { - - Serial.begin(115200); - WiFi.mode(WIFI_STA); - WiFi.begin(ssid, password); - if (WiFi.waitForConnectResult() != WL_CONNECTED) { - Serial.printf("WiFi Failed!\n"); - return; - } - - Serial.print("IP Address: "); - Serial.println(WiFi.localIP()); - - server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){ - request->send(200, "text/plain", "Hello, world"); - }); - - // Send a GET request to /get?message= - server.on("/get", HTTP_GET, [] (AsyncWebServerRequest *request) { - String message; - if (request->hasParam(PARAM_MESSAGE)) { - message = request->getParam(PARAM_MESSAGE)->value(); - } else { - message = "No message sent"; - } - request->send(200, "text/plain", "Hello, GET: " + message); - }); - - // Send a POST request to /post with a form field message set to - server.on("/post", HTTP_POST, [](AsyncWebServerRequest *request){ - String message; - if (request->hasParam(PARAM_MESSAGE, true)) { - message = request->getParam(PARAM_MESSAGE, true)->value(); - } else { - message = "No message sent"; - } - request->send(200, "text/plain", "Hello, POST: " + message); - }); - - server.onNotFound(notFound); - - server.begin(); -} - -void loop() { -} \ No newline at end of file diff --git a/keywords.txt b/keywords.txt deleted file mode 100755 index c391e6c43..000000000 --- a/keywords.txt +++ /dev/null @@ -1,3 +0,0 @@ -JsonArray KEYWORD1 -add KEYWORD2 -createArray KEYWORD3 diff --git a/library.json b/library.json index 57d1e7dd4..191a6e6a6 100644 --- a/library.json +++ b/library.json @@ -1,29 +1,57 @@ { - "name":"ESP Async WebServer", - "description":"Asynchronous HTTP and WebSocket Server Library for ESP8266 and ESP32", - "keywords":"http,async,websocket,webserver", + "name": "ESPAsyncWebServer", + "version": "3.6.0", + "description": "Asynchronous HTTP and WebSocket Server Library for ESP32, ESP8266 and RP2040. Supports: WebSocket, SSE, Authentication, Arduino Json 7, File Upload, Static File serving, URL Rewrite, URL Redirect, etc.", + "keywords": "http,async,websocket,webserver", + "homepage": "https://github.com/ESP32Async/ESPAsyncWebServer", + "repository": { + "type": "git", + "url": "https://github.com/ESP32Async/ESPAsyncWebServer.git" + }, "authors": { - "name": "Hristo Gochkov", + "name": "ESP32Async", "maintainer": true }, - "repository": - { - "type": "git", - "url": "https://github.com/me-no-dev/ESPAsyncWebServer.git" - }, - "version": "1.2.2", "license": "LGPL-3.0", "frameworks": "arduino", - "platforms": ["espressif8266", "espressif32"], + "platforms": [ + "espressif32", + "espressif8266", + "raspberrypi" + ], "dependencies": [ { + "owner": "ESP32Async", + "name": "AsyncTCP", + "version": "^3.3.2", + "platforms": "espressif32" + }, + { + "owner": "ESP32Async", "name": "ESPAsyncTCP", + "version": "^2.0.0", "platforms": "espressif8266" }, { - "name": "AsyncTCP", - "platforms": "espressif32" + "name": "Hash", + "platforms": "espressif8266" + }, + { + "owner": "khoih-prog", + "name": "AsyncTCP_RP2040W", + "version": "^1.2.0", + "platforms": "raspberrypi" } - ] + ], + "export": { + "include": [ + "examples", + "src", + "library.json", + "library.properties", + "LICENSE", + "README.md" + ] + } } diff --git a/library.properties b/library.properties index 34b89fe86..d10f24296 100644 --- a/library.properties +++ b/library.properties @@ -1,9 +1,11 @@ name=ESP Async WebServer -version=1.2.2 -author=Me-No-Dev -maintainer=Me-No-Dev -sentence=Async Web Server for ESP8266 and ESP31B -paragraph=Async Web Server for ESP8266 and ESP31B +includes=ESPAsyncWebServer.h +version=3.6.0 +author=ESP32Async +maintainer=ESP32Async +sentence=Asynchronous HTTP and WebSocket Server Library for ESP32, ESP8266 and RP2040 +paragraph=Supports: WebSocket, SSE, Authentication, Arduino Json 7, File Upload, Static File serving, URL Rewrite, URL Redirect, etc category=Other -url=https://github.com/me-no-dev/ESPAsyncWebServer +url=https://github.com/ESP32Async/ESPAsyncWebServer architectures=* +license=LGPL-3.0 \ No newline at end of file diff --git a/partitions-4MB.csv b/partitions-4MB.csv new file mode 100644 index 000000000..75efc35ce --- /dev/null +++ b/partitions-4MB.csv @@ -0,0 +1,7 @@ +# Name ,Type ,SubType ,Offset ,Size ,Flags +nvs ,data ,nvs ,36K ,20K , +otadata ,data ,ota ,56K ,8K , +app0 ,app ,ota_0 ,64K ,1856K , +app1 ,app ,ota_1 ,1920K ,1856K , +spiffs ,data ,spiffs ,3776K ,256K , +coredump ,data ,coredump ,4032K ,64K , diff --git a/platformio.ini b/platformio.ini new file mode 100644 index 000000000..a731a50ed --- /dev/null +++ b/platformio.ini @@ -0,0 +1,129 @@ +[platformio] +default_envs = arduino-2, arduino-3, arduino-311, esp8266, raspberrypi +lib_dir = . +; src_dir = examples/CaptivePortal +src_dir = examples/SimpleServer +; src_dir = examples/StreamFiles +; src_dir = examples/Filters +; src_dir = examples/Issue85 +; src_dir = examples/Issue162 + +[env] +framework = arduino +build_flags = + -Og + -Wall -Wextra + -Wno-unused-parameter + ; -D CONFIG_ARDUHAL_LOG_COLORS + -D CORE_DEBUG_LEVEL=ARDUHAL_LOG_LEVEL_VERBOSE + -D CONFIG_ASYNC_TCP_MAX_ACK_TIME=5000 + -D CONFIG_ASYNC_TCP_PRIORITY=10 + -D CONFIG_ASYNC_TCP_QUEUE_SIZE=64 + -D CONFIG_ASYNC_TCP_RUNNING_CORE=1 + -D CONFIG_ASYNC_TCP_STACK_SIZE=4096 +upload_protocol = esptool +monitor_speed = 115200 +monitor_filters = esp32_exception_decoder, log2file +; monitor_filters = esp8266_exception_decoder, log2file +lib_compat_mode = strict +lib_ldf_mode = chain +lib_deps = + ; bblanchon/ArduinoJson @ 5.13.4 + ; bblanchon/ArduinoJson @ 6.21.5 + bblanchon/ArduinoJson @ 7.3.0 + ESP32Async/AsyncTCP @ 3.3.2 +board = esp32dev +board_build.partitions = partitions-4MB.csv +board_build.filesystem = littlefs + +[env:arduino-2] +platform = espressif32@6.9.0 + +[env:arduino-3] +platform = https://github.com/pioarduino/platform-espressif32/releases/download/51.03.05/platform-espressif32.zip +; board = esp32-s3-devkitc-1 +; board = esp32-c6-devkitc-1 + +[env:arduino-3-no-json] +platform = https://github.com/pioarduino/platform-espressif32/releases/download/51.03.05/platform-espressif32.zip +; board = esp32-s3-devkitc-1 +; board = esp32-c6-devkitc-1 +lib_deps = + ESP32Async/AsyncTCP @ 3.3.2 + +[env:arduino-311] +platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.11/platform-espressif32.zip +; board = esp32-s3-devkitc-1 +; board = esp32-c6-devkitc-1 +; board = esp32-h2-devkitm-1 + +[env:perf-test-AsyncTCP] +platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.11/platform-espressif32.zip +build_flags = ${env.build_flags} + -D PERF_TEST=1 + +[env:perf-test-AsyncTCPSock] +platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.11/platform-espressif32.zip +lib_deps = + https://github.com/ESP32Async/AsyncTCPSock/archive/refs/tags/v1.0.3-dev.zip +build_flags = ${env.build_flags} + -D PERF_TEST=1 + +[env:esp8266] +platform = espressif8266 +; board = huzzah +board = d1_mini +lib_deps = + bblanchon/ArduinoJson @ 7.3.0 + ESP32Async/ESPAsyncTCP @ 2.0.0 + +[env:raspberrypi] +platform = https://github.com/maxgerhardt/platform-raspberrypi.git +board = rpipicow +board_build.core = earlephilhower +lib_deps = + bblanchon/ArduinoJson @ 7.3.0 + khoih-prog/AsyncTCP_RP2040W @ 1.2.0 +lib_ignore = + lwIP_ESPHost +build_flags = ${env.build_flags} + -Wno-missing-field-initializers + +; CI + +[env:ci-arduino-2] +platform = espressif32@6.9.0 +board = ${sysenv.PIO_BOARD} + +[env:ci-arduino-3] +platform = https://github.com/pioarduino/platform-espressif32/releases/download/51.03.05/platform-espressif32.zip +board = ${sysenv.PIO_BOARD} + +[env:ci-arduino-3-no-json] +platform = https://github.com/pioarduino/platform-espressif32/releases/download/51.03.05/platform-espressif32.zip +board = ${sysenv.PIO_BOARD} +lib_deps = + ESP32Async/AsyncTCP @ 3.3.2 + +[env:ci-arduino-311] +platform = https://github.com/pioarduino/platform-espressif32/releases/download/53.03.11/platform-espressif32.zip +board = ${sysenv.PIO_BOARD} + +[env:ci-esp8266] +platform = espressif8266 +board = ${sysenv.PIO_BOARD} +lib_deps = + bblanchon/ArduinoJson @ 7.3.0 + ESP32Async/ESPAsyncTCP @ 2.0.0 + +[env:ci-raspberrypi] +platform = https://github.com/maxgerhardt/platform-raspberrypi.git +board = ${sysenv.PIO_BOARD} +board_build.core = earlephilhower +lib_deps = + bblanchon/ArduinoJson @ 7.3.0 + khoih-prog/AsyncTCP_RP2040W @ 1.2.0 +lib_ignore = + lwIP_ESPHost +build_flags = ${env.build_flags} + -Wno-missing-field-initializers diff --git a/src/AsyncEventSource.cpp b/src/AsyncEventSource.cpp index 0707d4a3a..874faa049 100644 --- a/src/AsyncEventSource.cpp +++ b/src/AsyncEventSource.cpp @@ -18,329 +18,450 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include "Arduino.h" +#if defined(ESP32) + #include +#endif #include "AsyncEventSource.h" -static String generateEventMessage(const char *message, const char *event, uint32_t id, uint32_t reconnect){ - String ev = ""; +#define ASYNC_SSE_NEW_LINE_CHAR (char)0xa - if(reconnect){ - ev += "retry: "; - ev += String(reconnect); - ev += "\r\n"; +using namespace asyncsrv; + +static String generateEventMessage(const char* message, const char* event, uint32_t id, uint32_t reconnect) { + String str; + size_t len{0}; + if (message) + len += strlen(message); + + if (event) + len += strlen(event); + + len += 42; // give it some overhead + + str.reserve(len); + + if (reconnect) { + str += T_retry_; + str += reconnect; + str += ASYNC_SSE_NEW_LINE_CHAR; // '\n' } - if(id){ - ev += "id: "; - ev += String(id); - ev += "\r\n"; + if (id) { + str += T_id__; + str += id; + str += ASYNC_SSE_NEW_LINE_CHAR; // '\n' } - if(event != NULL){ - ev += "event: "; - ev += String(event); - ev += "\r\n"; + if (event != NULL) { + str += T_event_; + str += event; + str += ASYNC_SSE_NEW_LINE_CHAR; // '\n' } - if(message != NULL){ - size_t messageLen = strlen(message); - char * lineStart = (char *)message; - char * lineEnd; - do { - char * nextN = strchr(lineStart, '\n'); - char * nextR = strchr(lineStart, '\r'); - if(nextN == NULL && nextR == NULL){ - size_t llen = ((char *)message + messageLen) - lineStart; - char * ldata = (char *)malloc(llen+1); - if(ldata != NULL){ - memcpy(ldata, lineStart, llen); - ldata[llen] = 0; - ev += "data: "; - ev += ldata; - ev += "\r\n\r\n"; - free(ldata); - } - lineStart = (char *)message + messageLen; + if (!message) + return str; + + size_t messageLen = strlen(message); + char* lineStart = (char*)message; + char* lineEnd; + do { + char* nextN = strchr(lineStart, '\n'); + char* nextR = strchr(lineStart, '\r'); + if (nextN == NULL && nextR == NULL) { + // a message is a single-line string + str += T_data_; + str += message; + str += T_nn; + return str; + } + + // a message is a multi-line string + char* nextLine = NULL; + if (nextN != NULL && nextR != NULL) { // windows line-ending \r\n + if (nextR + 1 == nextN) { + // normal \r\n sequense + lineEnd = nextR; + nextLine = nextN + 1; } else { - char * nextLine = NULL; - if(nextN != NULL && nextR != NULL){ - if(nextR < nextN){ - lineEnd = nextR; - if(nextN == (nextR + 1)) - nextLine = nextN + 1; - else - nextLine = nextR + 1; - } else { - lineEnd = nextN; - if(nextR == (nextN + 1)) - nextLine = nextR + 1; - else - nextLine = nextN + 1; - } - } else if(nextN != NULL){ - lineEnd = nextN; - nextLine = nextN + 1; - } else { - lineEnd = nextR; - nextLine = nextR + 1; - } - - size_t llen = lineEnd - lineStart; - char * ldata = (char *)malloc(llen+1); - if(ldata != NULL){ - memcpy(ldata, lineStart, llen); - ldata[llen] = 0; - ev += "data: "; - ev += ldata; - ev += "\r\n"; - free(ldata); - } - lineStart = nextLine; - if(lineStart == ((char *)message + messageLen)) - ev += "\r\n"; + // some abnormal \n \r mixed sequence + lineEnd = std::min(nextR, nextN); + nextLine = lineEnd + 1; } - } while(lineStart < ((char *)message + messageLen)); - } + } else if (nextN != NULL) { // Unix/Mac OS X LF + lineEnd = nextN; + nextLine = nextN + 1; + } else { // some ancient garbage + lineEnd = nextR; + nextLine = nextR + 1; + } - return ev; -} + str += T_data_; + str.concat(lineStart, lineEnd - lineStart); + str += ASYNC_SSE_NEW_LINE_CHAR; // \n -// Message + lineStart = nextLine; + } while (lineStart < ((char*)message + messageLen)); -AsyncEventSourceMessage::AsyncEventSourceMessage(const char * data, size_t len) -: _data(nullptr), _len(len), _sent(0), _acked(0) -{ - _data = (uint8_t*)malloc(_len+1); - if(_data == nullptr){ - _len = 0; - } else { - memcpy(_data, data, len); - _data[_len] = 0; - } -} + // append another \n to terminate message + str += ASYNC_SSE_NEW_LINE_CHAR; // '\n' -AsyncEventSourceMessage::~AsyncEventSourceMessage() { - if(_data != NULL) - free(_data); + return str; } -size_t AsyncEventSourceMessage::ack(size_t len, uint32_t time) { +// Message + +size_t AsyncEventSourceMessage::ack(size_t len, __attribute__((unused)) uint32_t time) { // If the whole message is now acked... - if(_acked + len > _len){ - // Return the number of extra bytes acked (they will be carried on to the next message) - const size_t extra = _acked + len - _len; - _acked = _len; - return extra; + if (_acked + len > _data->length()) { + // Return the number of extra bytes acked (they will be carried on to the next message) + const size_t extra = _acked + len - _data->length(); + _acked = _data->length(); + return extra; } // Return that no extra bytes left. _acked += len; return 0; } -size_t AsyncEventSourceMessage::send(AsyncClient *client) { - const size_t len = _len - _sent; - if(client->space() < len){ +size_t AsyncEventSourceMessage::write(AsyncClient* client) { + if (!client) + return 0; + + if (_sent >= _data->length() || !client->canSend()) { return 0; } - size_t sent = client->add((const char *)_data, len); - if(client->canSend()) - client->send(); - _sent += sent; - return sent; + + size_t len = std::min(_data->length() - _sent, client->space()); + /* + add() would call lwip's tcp_write() under the AsyncTCP hood with apiflags argument. + By default apiflags=ASYNC_WRITE_FLAG_COPY + we could have used apiflags with this flag unset to pass data by reference and avoid copy to socket buffer, + but looks like it does not work for Arduino's lwip in ESP32/IDF + it is enforced in https://github.com/espressif/esp-lwip/blob/0606eed9d8b98a797514fdf6eabb4daf1c8c8cd9/src/core/tcp_out.c#L422C5-L422C30 + if LWIP_NETIF_TX_SINGLE_PBUF is set, and it is set indeed in IDF + https://github.com/espressif/esp-idf/blob/a0f798cfc4bbd624aab52b2c194d219e242d80c1/components/lwip/port/include/lwipopts.h#L744 + + So let's just keep it enforced ASYNC_WRITE_FLAG_COPY and keep in mind that there is no zero-copy + */ + size_t written = client->add(_data->c_str() + _sent, len, ASYNC_WRITE_FLAG_COPY); // ASYNC_WRITE_FLAG_MORE + _sent += written; + return written; +} + +size_t AsyncEventSourceMessage::send(AsyncClient* client) { + size_t sent = write(client); + return sent && client->send() ? sent : 0; } // Client -AsyncEventSourceClient::AsyncEventSourceClient(AsyncWebServerRequest *request, AsyncEventSource *server) -: _messageQueue(LinkedList([](AsyncEventSourceMessage *m){ delete m; })) -{ - _client = request->client(); - _server = server; - _lastId = 0; - if(request->hasHeader("Last-Event-ID")) - _lastId = atoi(request->getHeader("Last-Event-ID")->value().c_str()); - +AsyncEventSourceClient::AsyncEventSourceClient(AsyncWebServerRequest* request, AsyncEventSource* server) + : _client(request->client()), _server(server) { + + if (request->hasHeader(T_Last_Event_ID)) + _lastId = atoi(request->getHeader(T_Last_Event_ID)->value().c_str()); + _client->setRxTimeout(0); _client->onError(NULL, NULL); - _client->onAck([](void *r, AsyncClient* c, size_t len, uint32_t time){ ((AsyncEventSourceClient*)(r))->_onAck(len, time); }, this); - _client->onPoll([](void *r, AsyncClient* c){ ((AsyncEventSourceClient*)(r))->_onPoll(); }, this); + _client->onAck([](void* r, AsyncClient* c, size_t len, uint32_t time) { (void)c; static_cast(r)->_onAck(len, time); }, this); + _client->onPoll([](void* r, AsyncClient* c) { (void)c; static_cast(r)->_onPoll(); }, this); _client->onData(NULL, NULL); - _client->onTimeout([this](void *r, AsyncClient* c __attribute__((unused)), uint32_t time){ ((AsyncEventSourceClient*)(r))->_onTimeout(time); }, this); - _client->onDisconnect([this](void *r, AsyncClient* c){ ((AsyncEventSourceClient*)(r))->_onDisconnect(); delete c; }, this); + _client->onTimeout([this](void* r, AsyncClient* c __attribute__((unused)), uint32_t time) { static_cast(r)->_onTimeout(time); }, this); + _client->onDisconnect([this](void* r, AsyncClient* c) { static_cast(r)->_onDisconnect(); delete c; }, this); _server->_addClient(this); delete request; + + _client->setNoDelay(true); } -AsyncEventSourceClient::~AsyncEventSourceClient(){ - _messageQueue.free(); +AsyncEventSourceClient::~AsyncEventSourceClient() { +#ifdef ESP32 + std::lock_guard lock(_lockmq); +#endif + _messageQueue.clear(); close(); } -void AsyncEventSourceClient::_queueMessage(AsyncEventSourceMessage *dataMessage){ - if(dataMessage == NULL) - return; - if(!connected()){ - delete dataMessage; - return; +bool AsyncEventSourceClient::_queueMessage(const char* message, size_t len) { + if (_messageQueue.size() >= SSE_MAX_QUEUED_MESSAGES) { +#ifdef ESP8266 + ets_printf(String(F("ERROR: Too many messages queued\n")).c_str()); +#elif defined(ESP32) + log_e("Event message queue overflow: discard message"); +#endif + return false; } - _messageQueue.add(dataMessage); +#ifdef ESP32 + // length() is not thread-safe, thus acquiring the lock before this call.. + std::lock_guard lock(_lockmq); +#endif - _runQueue(); -} + _messageQueue.emplace_back(message, len); -void AsyncEventSourceClient::_onAck(size_t len, uint32_t time){ - while(len && !_messageQueue.isEmpty()){ - len = _messageQueue.front()->ack(len, time); - if(_messageQueue.front()->finished()) - _messageQueue.remove(_messageQueue.front()); + /* + throttle queue run + if Q is filled for >25% then network/CPU is congested, since there is no zero-copy mode for socket buff + forcing Q run will only eat more heap ram and blow the buffer, let's just keep data in our own queue + the queue will be processed at least on each onAck()/onPoll() call from AsyncTCP + */ + if (_messageQueue.size() < SSE_MAX_QUEUED_MESSAGES >> 2 && _client->canSend()) { + _runQueue(); } - _runQueue(); + return true; } -void AsyncEventSourceClient::_onPoll(){ - if(!_messageQueue.isEmpty()){ +bool AsyncEventSourceClient::_queueMessage(AsyncEvent_SharedData_t&& msg) { + if (_messageQueue.size() >= SSE_MAX_QUEUED_MESSAGES) { +#ifdef ESP8266 + ets_printf(String(F("ERROR: Too many messages queued\n")).c_str()); +#elif defined(ESP32) + log_e("Event message queue overflow: discard message"); +#endif + return false; + } + +#ifdef ESP32 + // length() is not thread-safe, thus acquiring the lock before this call.. + std::lock_guard lock(_lockmq); +#endif + + _messageQueue.emplace_back(std::move(msg)); + + /* + throttle queue run + if Q is filled for >25% then network/CPU is congested, since there is no zero-copy mode for socket buff + forcing Q run will only eat more heap ram and blow the buffer, let's just keep data in our own queue + the queue will be processed at least on each onAck()/onPoll() call from AsyncTCP + */ + if (_messageQueue.size() < SSE_MAX_QUEUED_MESSAGES >> 2 && _client->canSend()) { _runQueue(); } + return true; +} + +void AsyncEventSourceClient::_onAck(size_t len __attribute__((unused)), uint32_t time __attribute__((unused))) { +#ifdef ESP32 + // Same here, acquiring the lock early + std::lock_guard lock(_lockmq); +#endif + + // adjust in-flight len + if (len < _inflight) + _inflight -= len; + else + _inflight = 0; + + // acknowledge as much messages's data as we got confirmed len from a AsyncTCP + while (len && _messageQueue.size()) { + len = _messageQueue.front().ack(len); + if (_messageQueue.front().finished()) { + // now we could release full ack'ed messages, we were keeping it unless send confirmed from AsyncTCP + _messageQueue.pop_front(); + } + } + + // try to send another batch of data + if (_messageQueue.size()) + _runQueue(); } +void AsyncEventSourceClient::_onPoll() { + if (_messageQueue.size()) { +#ifdef ESP32 + // Same here, acquiring the lock early + std::lock_guard lock(_lockmq); +#endif + _runQueue(); + } +} -void AsyncEventSourceClient::_onTimeout(uint32_t time __attribute__((unused))){ - _client->close(true); +void AsyncEventSourceClient::_onTimeout(uint32_t time __attribute__((unused))) { + if (_client) + _client->close(true); } -void AsyncEventSourceClient::_onDisconnect(){ - _client = NULL; +void AsyncEventSourceClient::_onDisconnect() { + if (!_client) + return; + _client = nullptr; _server->_handleDisconnect(this); } -void AsyncEventSourceClient::close(){ - if(_client != NULL) +void AsyncEventSourceClient::close() { + if (_client) _client->close(); } -void AsyncEventSourceClient::write(const char * message, size_t len){ - _queueMessage(new AsyncEventSourceMessage(message, len)); +bool AsyncEventSourceClient::send(const char* message, const char* event, uint32_t id, uint32_t reconnect) { + if (!connected()) + return false; + return _queueMessage(std::make_shared(generateEventMessage(message, event, id, reconnect))); } -void AsyncEventSourceClient::send(const char *message, const char *event, uint32_t id, uint32_t reconnect){ - String ev = generateEventMessage(message, event, id, reconnect); - _queueMessage(new AsyncEventSourceMessage(ev.c_str(), ev.length())); -} +void AsyncEventSourceClient::_runQueue() { + if (!_client) + return; -void AsyncEventSourceClient::_runQueue(){ - while(!_messageQueue.isEmpty() && _messageQueue.front()->finished()){ - _messageQueue.remove(_messageQueue.front()); + // there is no need to lock the mutex here, 'cause all the calls to this method must be already lock'ed + size_t total_bytes_written = 0; + for (auto i = _messageQueue.begin(); i != _messageQueue.end(); ++i) { + if (!i->sent()) { + const size_t bytes_written = i->write(_client); + total_bytes_written += bytes_written; + _inflight += bytes_written; + if (bytes_written == 0 || _inflight > _max_inflight) { + // Serial.print("_"); + break; + } + } } - for(auto i = _messageQueue.begin(); i != _messageQueue.end(); ++i) - { - if(!(*i)->sent()) - (*i)->send(_client); - } + // flush socket + if (total_bytes_written) + _client->send(); } - -// Handler - -AsyncEventSource::AsyncEventSource(const String& url) - : _url(url) - , _clients(LinkedList([](AsyncEventSourceClient *c){ delete c; })) - , _connectcb(NULL) -{} - -AsyncEventSource::~AsyncEventSource(){ - close(); +void AsyncEventSourceClient::set_max_inflight_bytes(size_t value) { + if (value >= SSE_MIN_INFLIGH && value <= SSE_MAX_INFLIGH) + _max_inflight = value; } -void AsyncEventSource::onConnect(ArEventHandlerFunction cb){ - _connectcb = cb; +/* AsyncEventSource */ + +void AsyncEventSource::authorizeConnect(ArAuthorizeConnectHandler cb) { + AsyncAuthorizationMiddleware* m = new AsyncAuthorizationMiddleware(401, cb); + m->_freeOnRemoval = true; + addMiddleware(m); } -void AsyncEventSource::_addClient(AsyncEventSourceClient * client){ - /*char * temp = (char *)malloc(2054); - if(temp != NULL){ - memset(temp+1,' ',2048); - temp[0] = ':'; - temp[2049] = '\r'; - temp[2050] = '\n'; - temp[2051] = '\r'; - temp[2052] = '\n'; - temp[2053] = 0; - client->write((const char *)temp, 2053); - free(temp); - }*/ - - _clients.add(client); - if(_connectcb) +void AsyncEventSource::_addClient(AsyncEventSourceClient* client) { + if (!client) + return; +#ifdef ESP32 + std::lock_guard lock(_client_queue_lock); +#endif + _clients.emplace_back(client); + if (_connectcb) _connectcb(client); + + _adjust_inflight_window(); } -void AsyncEventSource::_handleDisconnect(AsyncEventSourceClient * client){ - _clients.remove(client); +void AsyncEventSource::_handleDisconnect(AsyncEventSourceClient* client) { + if (_disconnectcb) + _disconnectcb(client); +#ifdef ESP32 + std::lock_guard lock(_client_queue_lock); +#endif + for (auto i = _clients.begin(); i != _clients.end(); ++i) { + if (i->get() == client) + _clients.erase(i); + } + _adjust_inflight_window(); } -void AsyncEventSource::close(){ - for(const auto &c: _clients){ - if(c->connected()) +void AsyncEventSource::close() { + // While the whole loop is not done, the linked list is locked and so the + // iterator should remain valid even when AsyncEventSource::_handleDisconnect() + // is called very early +#ifdef ESP32 + std::lock_guard lock(_client_queue_lock); +#endif + for (const auto& c : _clients) { + if (c->connected()) c->close(); } } -void AsyncEventSource::send(const char *message, const char *event, uint32_t id, uint32_t reconnect){ - if(_clients.isEmpty()) - return; +// pmb fix +size_t AsyncEventSource::avgPacketsWaiting() const { + size_t aql = 0; + uint32_t nConnectedClients = 0; +#ifdef ESP32 + std::lock_guard lock(_client_queue_lock); +#endif + if (!_clients.size()) + return 0; - String ev = generateEventMessage(message, event, id, reconnect); - for(const auto &c: _clients){ - if(c->connected()) { - c->write(ev.c_str(), ev.length()); + for (const auto& c : _clients) { + if (c->connected()) { + aql += c->packetsWaiting(); + ++nConnectedClients; } } + return ((aql) + (nConnectedClients / 2)) / (nConnectedClients); // round up +} + +AsyncEventSource::SendStatus AsyncEventSource::send( + const char* message, const char* event, uint32_t id, uint32_t reconnect) { + AsyncEvent_SharedData_t shared_msg = std::make_shared(generateEventMessage(message, event, id, reconnect)); +#ifdef ESP32 + std::lock_guard lock(_client_queue_lock); +#endif + size_t hits = 0; + size_t miss = 0; + for (const auto& c : _clients) { + if (c->write(shared_msg)) + ++hits; + else + ++miss; + } + return hits == 0 ? DISCARDED : (miss == 0 ? ENQUEUED : PARTIALLY_ENQUEUED); } size_t AsyncEventSource::count() const { - return _clients.count_if([](AsyncEventSourceClient *c){ - return c->connected(); - }); +#ifdef ESP32 + std::lock_guard lock(_client_queue_lock); +#endif + size_t n_clients{0}; + for (const auto& i : _clients) + if (i->connected()) + ++n_clients; + + return n_clients; } -bool AsyncEventSource::canHandle(AsyncWebServerRequest *request){ - if(request->method() != HTTP_GET || !request->url().equals(_url)) { - return false; - } - request->addInterestingHeader("Last-Event-ID"); - return true; +bool AsyncEventSource::canHandle(AsyncWebServerRequest* request) const { + return request->isSSE() && request->url().equals(_url); } -void AsyncEventSource::handleRequest(AsyncWebServerRequest *request){ - if((_username != "" && _password != "") && !request->authenticate(_username.c_str(), _password.c_str())) - return request->requestAuthentication(); +void AsyncEventSource::handleRequest(AsyncWebServerRequest* request) { request->send(new AsyncEventSourceResponse(this)); } -// Response +void AsyncEventSource::_adjust_inflight_window() { + if (_clients.size()) { + size_t inflight = SSE_MAX_INFLIGH / _clients.size(); + for (const auto& c : _clients) + c->set_max_inflight_bytes(inflight); + // Serial.printf("adjusted inflight to: %u\n", inflight); + } +} -AsyncEventSourceResponse::AsyncEventSourceResponse(AsyncEventSource *server){ +/* Response */ + +AsyncEventSourceResponse::AsyncEventSourceResponse(AsyncEventSource* server) { _server = server; _code = 200; - _contentType = "text/event-stream"; + _contentType = T_text_event_stream; _sendContentLength = false; - addHeader("Cache-Control", "no-cache"); - addHeader("Connection","keep-alive"); + addHeader(T_Cache_Control, T_no_cache); + addHeader(T_Connection, T_keep_alive); } -void AsyncEventSourceResponse::_respond(AsyncWebServerRequest *request){ - String out = _assembleHead(request->version()); +void AsyncEventSourceResponse::_respond(AsyncWebServerRequest* request) { + String out; + _assembleHead(out, request->version()); request->client()->write(out.c_str(), _headLength); _state = RESPONSE_WAIT_ACK; } -size_t AsyncEventSourceResponse::_ack(AsyncWebServerRequest *request, size_t len, uint32_t time __attribute__((unused))){ - if(len){ +size_t AsyncEventSourceResponse::_ack(AsyncWebServerRequest* request, size_t len, uint32_t time __attribute__((unused))) { + if (len) { new AsyncEventSourceClient(request, _server); } return 0; } - diff --git a/src/AsyncEventSource.h b/src/AsyncEventSource.h index 1b4d604dc..0796faedc 100644 --- a/src/AsyncEventSource.h +++ b/src/AsyncEventSource.h @@ -21,94 +21,272 @@ #define ASYNCEVENTSOURCE_H_ #include + #ifdef ESP32 -#include -#else -#include + #include + #include + #ifndef SSE_MAX_QUEUED_MESSAGES + #define SSE_MAX_QUEUED_MESSAGES 32 + #endif + #define SSE_MIN_INFLIGH 2 * 1460 // allow 2 MSS packets + #define SSE_MAX_INFLIGH 16 * 1024 // but no more than 16k, no need to blow it, since same data is kept in local Q +#elif defined(ESP8266) + #include + #ifndef SSE_MAX_QUEUED_MESSAGES + #define SSE_MAX_QUEUED_MESSAGES 8 + #endif + #define SSE_MIN_INFLIGH 2 * 1460 // allow 2 MSS packets + #define SSE_MAX_INFLIGH 8 * 1024 // but no more than 8k, no need to blow it, since same data is kept in local Q +#elif defined(TARGET_RP2040) + #include + #ifndef SSE_MAX_QUEUED_MESSAGES + #define SSE_MAX_QUEUED_MESSAGES 32 + #endif + #define SSE_MIN_INFLIGH 2 * 1460 // allow 2 MSS packets + #define SSE_MAX_INFLIGH 16 * 1024 // but no more than 16k, no need to blow it, since same data is kept in local Q #endif + #include +#ifdef ESP8266 + #include + #ifdef CRYPTO_HASH_h // include Hash.h from espressif framework if the first include was from the crypto library + #include <../src/Hash.h> + #endif +#endif + class AsyncEventSource; class AsyncEventSourceResponse; class AsyncEventSourceClient; -typedef std::function ArEventHandlerFunction; +using ArEventHandlerFunction = std::function; +using ArAuthorizeConnectHandler = ArAuthorizeFunction; +// shared message object container +using AsyncEvent_SharedData_t = std::shared_ptr; +/** + * @brief Async Event Message container with shared message content data + * + */ class AsyncEventSourceMessage { + private: - uint8_t * _data; - size_t _len; - size_t _sent; - //size_t _ack; - size_t _acked; + const AsyncEvent_SharedData_t _data; + size_t _sent{0}; // num of bytes already sent + size_t _acked{0}; // num of bytes acked + public: - AsyncEventSourceMessage(const char * data, size_t len); - ~AsyncEventSourceMessage(); - size_t ack(size_t len, uint32_t time __attribute__((unused))); - size_t send(AsyncClient *client); - bool finished(){ return _acked == _len; } - bool sent() { return _sent == _len; } + AsyncEventSourceMessage(AsyncEvent_SharedData_t data) : _data(data) {}; +#ifdef ESP32 + AsyncEventSourceMessage(const char* data, size_t len) : _data(std::make_shared(data, len)) {}; +#else + // esp8266's String does not have constructor with data/length arguments. Use a concat method here + AsyncEventSourceMessage(const char* data, size_t len) { _data->concat(data, len); }; +#endif + + /** + * @brief acknowledge sending len bytes of data + * @note if num of bytes to ack is larger then the unacknowledged message length the number of carried over bytes are returned + * + * @param len bytes to acknowlegde + * @param time + * @return size_t number of extra bytes carried over + */ + size_t ack(size_t len, uint32_t time = 0); + + /** + * @brief write message data to client's buffer + * @note this method does NOT call client's send + * + * @param client + * @return size_t number of bytes written + */ + size_t write(AsyncClient* client); + + /** + * @brief writes message data to client's buffer and calls client's send method + * + * @param client + * @return size_t returns num of bytes the clien was able to send() + */ + size_t send(AsyncClient* client); + + // returns true if full message's length were acked + bool finished() { return _acked == _data->length(); } + + /** + * @brief returns true if all data has been sent already + * + */ + bool sent() { return _sent == _data->length(); } }; +/** + * @brief class holds a sse messages queue for a particular client's connection + * + */ class AsyncEventSourceClient { private: - AsyncClient *_client; - AsyncEventSource *_server; - uint32_t _lastId; - LinkedList _messageQueue; - void _queueMessage(AsyncEventSourceMessage *dataMessage); + AsyncClient* _client; + AsyncEventSource* _server; + uint32_t _lastId{0}; + size_t _inflight{0}; // num of unacknowledged bytes that has been written to socket buffer + size_t _max_inflight{SSE_MAX_INFLIGH}; // max num of unacknowledged bytes that could be written to socket buffer + std::list _messageQueue; +#ifdef ESP32 + mutable std::mutex _lockmq; +#endif + bool _queueMessage(const char* message, size_t len); + bool _queueMessage(AsyncEvent_SharedData_t&& msg); void _runQueue(); public: - - AsyncEventSourceClient(AsyncWebServerRequest *request, AsyncEventSource *server); + AsyncEventSourceClient(AsyncWebServerRequest* request, AsyncEventSource* server); ~AsyncEventSourceClient(); - AsyncClient* client(){ return _client; } + /** + * @brief Send an SSE message to client + * it will craft an SSE message and place it to client's message queue + * + * @param message body string, could be single or multi-line string sepprated by \n, \r, \r\n + * @param event body string, a sinle line string + * @param id sequence id + * @param reconnect client's reconnect timeout + * @return true if message was placed in a queue + * @return false if queue is full + */ + bool send(const char* message, const char* event = NULL, uint32_t id = 0, uint32_t reconnect = 0); + bool send(const String& message, const String& event, uint32_t id = 0, uint32_t reconnect = 0) { return send(message.c_str(), event.c_str(), id, reconnect); } + bool send(const String& message, const char* event, uint32_t id = 0, uint32_t reconnect = 0) { return send(message.c_str(), event, id, reconnect); } + + /** + * @brief place supplied preformatted SSE message to the message queue + * @note message must a properly formatted SSE string according to https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events + * + * @param message data + * @return true on success + * @return false on queue overflow or no client connected + */ + bool write(AsyncEvent_SharedData_t message) { return connected() && _queueMessage(std::move(message)); }; + + [[deprecated("Use _write(AsyncEvent_SharedData_t message) instead to share same data with multiple SSE clients")]] + bool write(const char* message, size_t len) { return connected() && _queueMessage(message, len); }; + + // close client's connection void close(); - void write(const char * message, size_t len); - void send(const char *message, const char *event=NULL, uint32_t id=0, uint32_t reconnect=0); - bool connected() const { return (_client != NULL) && _client->connected(); } + + // getters + + AsyncClient* client() { return _client; } + bool connected() const { return _client && _client->connected(); } uint32_t lastId() const { return _lastId; } + size_t packetsWaiting() const { return _messageQueue.size(); }; + + /** + * @brief Sets max amount of bytes that could be written to client's socket while awaiting delivery acknowledge + * used to throttle message delivery length to tradeoff memory consumption + * @note actual amount of data written could possible be a bit larger but no more than available socket buff space + * + * @param value + */ + void set_max_inflight_bytes(size_t value); - //system callbacks (do not call) + /** + * @brief Get current max inflight bytes value + * + * @return size_t + */ + size_t get_max_inflight_bytes() const { return _max_inflight; } + + // system callbacks (do not call if from user code!) void _onAck(size_t len, uint32_t time); - void _onPoll(); + void _onPoll(); void _onTimeout(uint32_t time); void _onDisconnect(); }; -class AsyncEventSource: public AsyncWebHandler { +/** + * @brief a class that maintains all connected HTTP clients subscribed to SSE delivery + * dispatches supplied messages to the client's queues + * + */ +class AsyncEventSource : public AsyncWebHandler { private: String _url; - LinkedList _clients; - ArEventHandlerFunction _connectcb; + std::list> _clients; +#ifdef ESP32 + // Same as for individual messages, protect mutations of _clients list + // since simultaneous access from different tasks is possible + mutable std::mutex _client_queue_lock; +#endif + ArEventHandlerFunction _connectcb = nullptr; + ArEventHandlerFunction _disconnectcb = nullptr; + + // this method manipulates in-fligh data size for connected client depending on number of active connections + void _adjust_inflight_window(); + public: - AsyncEventSource(const String& url); - ~AsyncEventSource(); + typedef enum { + DISCARDED = 0, + ENQUEUED = 1, + PARTIALLY_ENQUEUED = 2, + } SendStatus; - const char * url() const { return _url.c_str(); } + AsyncEventSource(const char* url) : _url(url) {}; + AsyncEventSource(const String& url) : _url(url) {}; + ~AsyncEventSource() { close(); }; + + const char* url() const { return _url.c_str(); } + // close all connected clients void close(); - void onConnect(ArEventHandlerFunction cb); - void send(const char *message, const char *event=NULL, uint32_t id=0, uint32_t reconnect=0); - size_t count() const; //number clinets connected - - //system callbacks (do not call) - void _addClient(AsyncEventSourceClient * client); - void _handleDisconnect(AsyncEventSourceClient * client); - virtual bool canHandle(AsyncWebServerRequest *request) override final; - virtual void handleRequest(AsyncWebServerRequest *request) override final; + + /** + * @brief set on-connect callback for the client + * used to deliver messages to client on first connect + * + * @param cb + */ + void onConnect(ArEventHandlerFunction cb) { _connectcb = cb; } + + /** + * @brief Send an SSE message to client + * it will craft an SSE message and place it to all connected client's message queues + * + * @param message body string, could be single or multi-line string sepprated by \n, \r, \r\n + * @param event body string, a sinle line string + * @param id sequence id + * @param reconnect client's reconnect timeout + * @return SendStatus if message was placed in any/all/part of the client's queues + */ + SendStatus send(const char* message, const char* event = NULL, uint32_t id = 0, uint32_t reconnect = 0); + SendStatus send(const String& message, const String& event, uint32_t id = 0, uint32_t reconnect = 0) { return send(message.c_str(), event.c_str(), id, reconnect); } + SendStatus send(const String& message, const char* event, uint32_t id = 0, uint32_t reconnect = 0) { return send(message.c_str(), event, id, reconnect); } + + // The client pointer sent to the callback is only for reference purposes. DO NOT CALL ANY METHOD ON IT ! + void onDisconnect(ArEventHandlerFunction cb) { _disconnectcb = cb; } + void authorizeConnect(ArAuthorizeConnectHandler cb); + + // returns number of connected clients + size_t count() const; + + // returns average number of messages pending in all client's queues + size_t avgPacketsWaiting() const; + + // system callbacks (do not call from user code!) + void _addClient(AsyncEventSourceClient* client); + void _handleDisconnect(AsyncEventSourceClient* client); + bool canHandle(AsyncWebServerRequest* request) const override final; + void handleRequest(AsyncWebServerRequest* request) override final; }; -class AsyncEventSourceResponse: public AsyncWebServerResponse { +class AsyncEventSourceResponse : public AsyncWebServerResponse { private: - String _content; - AsyncEventSource *_server; + AsyncEventSource* _server; + public: - AsyncEventSourceResponse(AsyncEventSource *server); - void _respond(AsyncWebServerRequest *request); - size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time); + AsyncEventSourceResponse(AsyncEventSource* server); + void _respond(AsyncWebServerRequest* request); + size_t _ack(AsyncWebServerRequest* request, size_t len, uint32_t time); bool _sourceValid() const { return true; } }; - #endif /* ASYNCEVENTSOURCE_H_ */ diff --git a/src/AsyncJson.cpp b/src/AsyncJson.cpp new file mode 100644 index 000000000..42956537d --- /dev/null +++ b/src/AsyncJson.cpp @@ -0,0 +1,151 @@ +#include "AsyncJson.h" + +#if ASYNC_JSON_SUPPORT == 1 + + #if ARDUINOJSON_VERSION_MAJOR == 5 +AsyncJsonResponse::AsyncJsonResponse(bool isArray) : _isValid{false} { + _code = 200; + _contentType = asyncsrv::T_application_json; + if (isArray) + _root = _jsonBuffer.createArray(); + else + _root = _jsonBuffer.createObject(); +} + #elif ARDUINOJSON_VERSION_MAJOR == 6 +AsyncJsonResponse::AsyncJsonResponse(bool isArray, size_t maxJsonBufferSize) : _jsonBuffer(maxJsonBufferSize), _isValid{false} { + _code = 200; + _contentType = asyncsrv::T_application_json; + if (isArray) + _root = _jsonBuffer.createNestedArray(); + else + _root = _jsonBuffer.createNestedObject(); +} + #else +AsyncJsonResponse::AsyncJsonResponse(bool isArray) : _isValid{false} { + _code = 200; + _contentType = asyncsrv::T_application_json; + if (isArray) + _root = _jsonBuffer.add(); + else + _root = _jsonBuffer.add(); +} + #endif + +size_t AsyncJsonResponse::setLength() { + #if ARDUINOJSON_VERSION_MAJOR == 5 + _contentLength = _root.measureLength(); + #else + _contentLength = measureJson(_root); + #endif + if (_contentLength) { + _isValid = true; + } + return _contentLength; +} + +size_t AsyncJsonResponse::_fillBuffer(uint8_t* data, size_t len) { + ChunkPrint dest(data, _sentLength, len); + #if ARDUINOJSON_VERSION_MAJOR == 5 + _root.printTo(dest); + #else + serializeJson(_root, dest); + #endif + return len; +} + + #if ARDUINOJSON_VERSION_MAJOR == 6 +PrettyAsyncJsonResponse::PrettyAsyncJsonResponse(bool isArray, size_t maxJsonBufferSize) : AsyncJsonResponse{isArray, maxJsonBufferSize} {} + #else +PrettyAsyncJsonResponse::PrettyAsyncJsonResponse(bool isArray) : AsyncJsonResponse{isArray} {} + #endif + +size_t PrettyAsyncJsonResponse::setLength() { + #if ARDUINOJSON_VERSION_MAJOR == 5 + _contentLength = _root.measurePrettyLength(); + #else + _contentLength = measureJsonPretty(_root); + #endif + if (_contentLength) { + _isValid = true; + } + return _contentLength; +} + +size_t PrettyAsyncJsonResponse::_fillBuffer(uint8_t* data, size_t len) { + ChunkPrint dest(data, _sentLength, len); + #if ARDUINOJSON_VERSION_MAJOR == 5 + _root.prettyPrintTo(dest); + #else + serializeJsonPretty(_root, dest); + #endif + return len; +} + + #if ARDUINOJSON_VERSION_MAJOR == 6 +AsyncCallbackJsonWebHandler::AsyncCallbackJsonWebHandler(const String& uri, ArJsonRequestHandlerFunction onRequest, size_t maxJsonBufferSize) + : _uri(uri), _method(HTTP_GET | HTTP_POST | HTTP_PUT | HTTP_PATCH), _onRequest(onRequest), maxJsonBufferSize(maxJsonBufferSize), _maxContentLength(16384) {} + #else +AsyncCallbackJsonWebHandler::AsyncCallbackJsonWebHandler(const String& uri, ArJsonRequestHandlerFunction onRequest) + : _uri(uri), _method(HTTP_GET | HTTP_POST | HTTP_PUT | HTTP_PATCH), _onRequest(onRequest), _maxContentLength(16384) {} + #endif + +bool AsyncCallbackJsonWebHandler::canHandle(AsyncWebServerRequest* request) const { + if (!_onRequest || !request->isHTTP() || !(_method & request->method())) + return false; + + if (_uri.length() && (_uri != request->url() && !request->url().startsWith(_uri + "/"))) + return false; + + if (request->method() != HTTP_GET && !request->contentType().equalsIgnoreCase(asyncsrv::T_application_json)) + return false; + + return true; +} + +void AsyncCallbackJsonWebHandler::handleRequest(AsyncWebServerRequest* request) { + if (_onRequest) { + if (request->method() == HTTP_GET) { + JsonVariant json; + _onRequest(request, json); + return; + } else if (request->_tempObject != NULL) { + + #if ARDUINOJSON_VERSION_MAJOR == 5 + DynamicJsonBuffer jsonBuffer; + JsonVariant json = jsonBuffer.parse((uint8_t*)(request->_tempObject)); + if (json.success()) { + #elif ARDUINOJSON_VERSION_MAJOR == 6 + DynamicJsonDocument jsonBuffer(this->maxJsonBufferSize); + DeserializationError error = deserializeJson(jsonBuffer, (uint8_t*)(request->_tempObject)); + if (!error) { + JsonVariant json = jsonBuffer.as(); + #else + JsonDocument jsonBuffer; + DeserializationError error = deserializeJson(jsonBuffer, (uint8_t*)(request->_tempObject)); + if (!error) { + JsonVariant json = jsonBuffer.as(); + #endif + + _onRequest(request, json); + return; + } + } + request->send(_contentLength > _maxContentLength ? 413 : 400); + } else { + request->send(500); + } +} + +void AsyncCallbackJsonWebHandler::handleBody(AsyncWebServerRequest* request, uint8_t* data, size_t len, size_t index, size_t total) { + if (_onRequest) { + _contentLength = total; + if (total > 0 && request->_tempObject == NULL && total < _maxContentLength) { + request->_tempObject = malloc(total); + } + if (request->_tempObject != NULL) { + memcpy((uint8_t*)(request->_tempObject) + index, data, len); + } + } +} + +#endif // ASYNC_JSON_SUPPORT diff --git a/src/AsyncJson.h b/src/AsyncJson.h index 4a6d6ba69..a54935adb 100644 --- a/src/AsyncJson.h +++ b/src/AsyncJson.h @@ -26,217 +26,106 @@ AsyncCallbackJsonWebHandler* handler = new AsyncCallbackJsonWebHandler("/rest/endpoint"); handler->onRequest([](AsyncWebServerRequest *request, JsonVariant &json) { - JsonObject& jsonObj = json.as(); + JsonObject jsonObj = json.as(); // ... }); server.addHandler(handler); - + */ #ifndef ASYNC_JSON_H_ #define ASYNC_JSON_H_ -#include -#include -#include -#if ARDUINOJSON_VERSION_MAJOR == 5 - #define ARDUINOJSON_5_COMPATIBILITY -#else - #define DYNAMIC_JSON_DOCUMENT_SIZE 1024 -#endif +#if __has_include("ArduinoJson.h") + #include + #if ARDUINOJSON_VERSION_MAJOR >= 5 + #define ASYNC_JSON_SUPPORT 1 + #else + #define ASYNC_JSON_SUPPORT 0 + #endif // ARDUINOJSON_VERSION_MAJOR >= 5 +#endif // __has_include("ArduinoJson.h") -constexpr const char* JSON_MIMETYPE = "application/json"; +#if ASYNC_JSON_SUPPORT == 1 + #include -/* - * Json Response - * */ - -class ChunkPrint : public Print { - private: - uint8_t* _destination; - size_t _to_skip; - size_t _to_write; - size_t _pos; - public: - ChunkPrint(uint8_t* destination, size_t from, size_t len) - : _destination(destination), _to_skip(from), _to_write(len), _pos{0} {} - virtual ~ChunkPrint(){} - size_t write(uint8_t c){ - if (_to_skip > 0) { - _to_skip--; - return 1; - } else if (_to_write > 0) { - _to_write--; - _destination[_pos++] = c; - return 1; - } - return 0; - } - size_t write(const uint8_t *buffer, size_t size) - { - return this->Print::write(buffer, size); - } -}; + #include "ChunkPrint.h" -class AsyncJsonResponse: public AsyncAbstractResponse { - protected: + #if ARDUINOJSON_VERSION_MAJOR == 6 + #ifndef DYNAMIC_JSON_DOCUMENT_SIZE + #define DYNAMIC_JSON_DOCUMENT_SIZE 1024 + #endif + #endif -#ifdef ARDUINOJSON_5_COMPATIBILITY +class AsyncJsonResponse : public AsyncAbstractResponse { + protected: + #if ARDUINOJSON_VERSION_MAJOR == 5 DynamicJsonBuffer _jsonBuffer; -#else + #elif ARDUINOJSON_VERSION_MAJOR == 6 DynamicJsonDocument _jsonBuffer; -#endif + #else + JsonDocument _jsonBuffer; + #endif JsonVariant _root; bool _isValid; - public: - -#ifdef ARDUINOJSON_5_COMPATIBILITY - AsyncJsonResponse(bool isArray=false): _isValid{false} { - _code = 200; - _contentType = JSON_MIMETYPE; - if(isArray) - _root = _jsonBuffer.createArray(); - else - _root = _jsonBuffer.createObject(); - } -#else - AsyncJsonResponse(size_t maxJsonBufferSize = DYNAMIC_JSON_DOCUMENT_SIZE, bool isArray=false) : _jsonBuffer(maxJsonBufferSize), _isValid{false} { - _code = 200; - _contentType = JSON_MIMETYPE; - if(isArray) - _root = _jsonBuffer.createNestedArray(); - else - _root = _jsonBuffer.createNestedObject(); - } -#endif - - ~AsyncJsonResponse() {} - JsonVariant & getRoot() { return _root; } + public: + #if ARDUINOJSON_VERSION_MAJOR == 6 + AsyncJsonResponse(bool isArray = false, size_t maxJsonBufferSize = DYNAMIC_JSON_DOCUMENT_SIZE); + #else + AsyncJsonResponse(bool isArray = false); + #endif + JsonVariant& getRoot() { return _root; } bool _sourceValid() const { return _isValid; } - size_t setLength() { - -#ifdef ARDUINOJSON_5_COMPATIBILITY - _contentLength = _root.measureLength(); -#else - _contentLength = measureJson(_root); -#endif - - if (_contentLength) { _isValid = true; } - return _contentLength; - } - - size_t getSize() { return _jsonBuffer.size(); } - - size_t _fillBuffer(uint8_t *data, size_t len){ - ChunkPrint dest(data, _sentLength, len); - -#ifdef ARDUINOJSON_5_COMPATIBILITY - _root.printTo( dest ) ; -#else - serializeJson(_root, dest); -#endif - return len; - } + size_t setLength(); + size_t getSize() const { return _jsonBuffer.size(); } + size_t _fillBuffer(uint8_t* data, size_t len); + #if ARDUINOJSON_VERSION_MAJOR >= 6 + bool overflowed() const { return _jsonBuffer.overflowed(); } + #endif }; -#ifdef ARDUINOJSON_5_COMPATIBILITY -class PrettyAsyncJsonResponse: public AsyncJsonResponse { -public: - PrettyAsyncJsonResponse (bool isArray=false) : AsyncJsonResponse{isArray} {} - size_t setLength () { - _contentLength = _root.measurePrettyLength (); - if (_contentLength) {_isValid = true;} - return _contentLength; - } - size_t _fillBuffer (uint8_t *data, size_t len) { - ChunkPrint dest (data, _sentLength, len); - _root.prettyPrintTo (dest); - return len; - } +class PrettyAsyncJsonResponse : public AsyncJsonResponse { + public: + #if ARDUINOJSON_VERSION_MAJOR == 6 + PrettyAsyncJsonResponse(bool isArray = false, size_t maxJsonBufferSize = DYNAMIC_JSON_DOCUMENT_SIZE); + #else + PrettyAsyncJsonResponse(bool isArray = false); + #endif + size_t setLength(); + size_t _fillBuffer(uint8_t* data, size_t len); }; -#endif - -typedef std::function ArJsonRequestHandlerFunction; - -class AsyncCallbackJsonWebHandler: public AsyncWebHandler { -private: -protected: - const String _uri; - WebRequestMethodComposite _method; - ArJsonRequestHandlerFunction _onRequest; - size_t _contentLength; -#ifndef ARDUINOJSON_5_COMPATIBILITY - const size_t maxJsonBufferSize; -#endif - size_t _maxContentLength; -public: -#ifdef ARDUINOJSON_5_COMPATIBILITY - AsyncCallbackJsonWebHandler(const String& uri, ArJsonRequestHandlerFunction onRequest) - : _uri(uri), _method(HTTP_POST|HTTP_PUT|HTTP_PATCH), _onRequest(onRequest), _maxContentLength(16384) {} -#else - AsyncCallbackJsonWebHandler(const String& uri, ArJsonRequestHandlerFunction onRequest, size_t maxJsonBufferSize=DYNAMIC_JSON_DOCUMENT_SIZE) - : _uri(uri), _method(HTTP_POST|HTTP_PUT|HTTP_PATCH), _onRequest(onRequest), maxJsonBufferSize(maxJsonBufferSize), _maxContentLength(16384) {} -#endif - - void setMethod(WebRequestMethodComposite method){ _method = method; } - void setMaxContentLength(int maxContentLength){ _maxContentLength = maxContentLength; } - void onRequest(ArJsonRequestHandlerFunction fn){ _onRequest = fn; } - - virtual bool canHandle(AsyncWebServerRequest *request) override final{ - if(!_onRequest) - return false; - - if(!(_method & request->method())) - return false; - - if(_uri.length() && (_uri != request->url() && !request->url().startsWith(_uri+"/"))) - return false; - - if ( !request->contentType().equalsIgnoreCase(JSON_MIMETYPE) ) - return false; - - request->addInterestingHeader("ANY"); - return true; - } - - virtual void handleRequest(AsyncWebServerRequest *request) override final { - if(_onRequest) { - if (request->_tempObject != NULL) { - -#ifdef ARDUINOJSON_5_COMPATIBILITY - DynamicJsonBuffer jsonBuffer; - JsonVariant json = jsonBuffer.parse((uint8_t*)(request->_tempObject)); - if (json.success()) { -#else - DynamicJsonDocument jsonBuffer(this->maxJsonBufferSize); - DeserializationError error = deserializeJson(jsonBuffer, (uint8_t*)(request->_tempObject)); - if(!error) { - JsonVariant json = jsonBuffer.as(); -#endif - - _onRequest(request, json); - return; - } - } - request->send(_contentLength > _maxContentLength ? 413 : 400); - } else { - request->send(500); - } - } - virtual void handleUpload(AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final) override final { - } - virtual void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) override final { - if (_onRequest) { - _contentLength = total; - if (total > 0 && request->_tempObject == NULL && total < _maxContentLength) { - request->_tempObject = malloc(total); - } - if (request->_tempObject != NULL) { - memcpy((uint8_t*)(request->_tempObject) + index, data, len); - } - } - } - virtual bool isRequestHandlerTrivial() override final {return _onRequest ? false : true;} + +typedef std::function ArJsonRequestHandlerFunction; + +class AsyncCallbackJsonWebHandler : public AsyncWebHandler { + protected: + String _uri; + WebRequestMethodComposite _method; + ArJsonRequestHandlerFunction _onRequest; + size_t _contentLength; + #if ARDUINOJSON_VERSION_MAJOR == 6 + size_t maxJsonBufferSize; + #endif + size_t _maxContentLength; + + public: + #if ARDUINOJSON_VERSION_MAJOR == 6 + AsyncCallbackJsonWebHandler(const String& uri, ArJsonRequestHandlerFunction onRequest = nullptr, size_t maxJsonBufferSize = DYNAMIC_JSON_DOCUMENT_SIZE); + #else + AsyncCallbackJsonWebHandler(const String& uri, ArJsonRequestHandlerFunction onRequest = nullptr); + #endif + + void setMethod(WebRequestMethodComposite method) { _method = method; } + void setMaxContentLength(int maxContentLength) { _maxContentLength = maxContentLength; } + void onRequest(ArJsonRequestHandlerFunction fn) { _onRequest = fn; } + + bool canHandle(AsyncWebServerRequest* request) const override final; + void handleRequest(AsyncWebServerRequest* request) override final; + void handleUpload(__unused AsyncWebServerRequest* request, __unused const String& filename, __unused size_t index, __unused uint8_t* data, __unused size_t len, __unused bool final) override final {} + void handleBody(AsyncWebServerRequest* request, uint8_t* data, size_t len, size_t index, size_t total) override final; + bool isRequestHandlerTrivial() const override final { return !_onRequest; } }; -#endif + +#endif // ASYNC_JSON_SUPPORT == 1 + +#endif // ASYNC_JSON_H_ diff --git a/src/AsyncMessagePack.cpp b/src/AsyncMessagePack.cpp new file mode 100644 index 000000000..85af67148 --- /dev/null +++ b/src/AsyncMessagePack.cpp @@ -0,0 +1,102 @@ +#include "AsyncMessagePack.h" + +#if ASYNC_MSG_PACK_SUPPORT == 1 + + #if ARDUINOJSON_VERSION_MAJOR == 6 +AsyncMessagePackResponse::AsyncMessagePackResponse(bool isArray, size_t maxJsonBufferSize) : _jsonBuffer(maxJsonBufferSize), _isValid{false} { + _code = 200; + _contentType = asyncsrv::T_application_msgpack; + if (isArray) + _root = _jsonBuffer.createNestedArray(); + else + _root = _jsonBuffer.createNestedObject(); +} + #else +AsyncMessagePackResponse::AsyncMessagePackResponse(bool isArray) : _isValid{false} { + _code = 200; + _contentType = asyncsrv::T_application_msgpack; + if (isArray) + _root = _jsonBuffer.add(); + else + _root = _jsonBuffer.add(); +} + #endif + +size_t AsyncMessagePackResponse::setLength() { + _contentLength = measureMsgPack(_root); + if (_contentLength) { + _isValid = true; + } + return _contentLength; +} + +size_t AsyncMessagePackResponse::_fillBuffer(uint8_t* data, size_t len) { + ChunkPrint dest(data, _sentLength, len); + serializeMsgPack(_root, dest); + return len; +} + + #if ARDUINOJSON_VERSION_MAJOR == 6 +AsyncCallbackMessagePackWebHandler::AsyncCallbackMessagePackWebHandler(const String& uri, ArMessagePackRequestHandlerFunction onRequest, size_t maxJsonBufferSize) + : _uri(uri), _method(HTTP_GET | HTTP_POST | HTTP_PUT | HTTP_PATCH), _onRequest(onRequest), maxJsonBufferSize(maxJsonBufferSize), _maxContentLength(16384) {} + #else +AsyncCallbackMessagePackWebHandler::AsyncCallbackMessagePackWebHandler(const String& uri, ArMessagePackRequestHandlerFunction onRequest) + : _uri(uri), _method(HTTP_GET | HTTP_POST | HTTP_PUT | HTTP_PATCH), _onRequest(onRequest), _maxContentLength(16384) {} + #endif + +bool AsyncCallbackMessagePackWebHandler::canHandle(AsyncWebServerRequest* request) const { + if (!_onRequest || !request->isHTTP() || !(_method & request->method())) + return false; + + if (_uri.length() && (_uri != request->url() && !request->url().startsWith(_uri + "/"))) + return false; + + if (request->method() != HTTP_GET && !request->contentType().equalsIgnoreCase(asyncsrv::T_application_msgpack)) + return false; + + return true; +} + +void AsyncCallbackMessagePackWebHandler::handleRequest(AsyncWebServerRequest* request) { + if (_onRequest) { + if (request->method() == HTTP_GET) { + JsonVariant json; + _onRequest(request, json); + return; + } else if (request->_tempObject != NULL) { + + #if ARDUINOJSON_VERSION_MAJOR == 6 + DynamicJsonDocument jsonBuffer(this->maxJsonBufferSize); + DeserializationError error = deserializeMsgPack(jsonBuffer, (uint8_t*)(request->_tempObject)); + if (!error) { + JsonVariant json = jsonBuffer.as(); + #else + JsonDocument jsonBuffer; + DeserializationError error = deserializeMsgPack(jsonBuffer, (uint8_t*)(request->_tempObject)); + if (!error) { + JsonVariant json = jsonBuffer.as(); + #endif + + _onRequest(request, json); + return; + } + } + request->send(_contentLength > _maxContentLength ? 413 : 400); + } else { + request->send(500); + } +} + +void AsyncCallbackMessagePackWebHandler::handleBody(AsyncWebServerRequest* request, uint8_t* data, size_t len, size_t index, size_t total) { + if (_onRequest) { + _contentLength = total; + if (total > 0 && request->_tempObject == NULL && total < _maxContentLength) { + request->_tempObject = malloc(total); + } + if (request->_tempObject != NULL) { + memcpy((uint8_t*)(request->_tempObject) + index, data, len); + } + } +} + +#endif // ASYNC_MSG_PACK_SUPPORT diff --git a/src/AsyncMessagePack.h b/src/AsyncMessagePack.h new file mode 100644 index 000000000..78fde92fc --- /dev/null +++ b/src/AsyncMessagePack.h @@ -0,0 +1,102 @@ +#pragma once + +/* + server.on("/msg_pack", HTTP_ANY, [](AsyncWebServerRequest * request) { + AsyncMessagePackResponse * response = new AsyncMessagePackResponse(); + JsonObject& root = response->getRoot(); + root["key1"] = "key number one"; + JsonObject& nested = root.createNestedObject("nested"); + nested["key1"] = "key number one"; + response->setLength(); + request->send(response); + }); + + -------------------- + + AsyncCallbackMessagePackWebHandler* handler = new AsyncCallbackMessagePackWebHandler("/msg_pack/endpoint"); + handler->onRequest([](AsyncWebServerRequest *request, JsonVariant &json) { + JsonObject jsonObj = json.as(); + // ... + }); + server.addHandler(handler); +*/ + +#if __has_include("ArduinoJson.h") + #include + #if ARDUINOJSON_VERSION_MAJOR >= 6 + #define ASYNC_MSG_PACK_SUPPORT 1 + #else + #define ASYNC_MSG_PACK_SUPPORT 0 + #endif // ARDUINOJSON_VERSION_MAJOR >= 6 +#endif // __has_include("ArduinoJson.h") + +#if ASYNC_MSG_PACK_SUPPORT == 1 + #include + + #include "ChunkPrint.h" + + #if ARDUINOJSON_VERSION_MAJOR == 6 + #ifndef DYNAMIC_JSON_DOCUMENT_SIZE + #define DYNAMIC_JSON_DOCUMENT_SIZE 1024 + #endif + #endif + +class AsyncMessagePackResponse : public AsyncAbstractResponse { + protected: + #if ARDUINOJSON_VERSION_MAJOR == 6 + DynamicJsonDocument _jsonBuffer; + #else + JsonDocument _jsonBuffer; + #endif + + JsonVariant _root; + bool _isValid; + + public: + #if ARDUINOJSON_VERSION_MAJOR == 6 + AsyncMessagePackResponse(bool isArray = false, size_t maxJsonBufferSize = DYNAMIC_JSON_DOCUMENT_SIZE); + #else + AsyncMessagePackResponse(bool isArray = false); + #endif + JsonVariant& getRoot() { return _root; } + bool _sourceValid() const { return _isValid; } + size_t setLength(); + size_t getSize() const { return _jsonBuffer.size(); } + size_t _fillBuffer(uint8_t* data, size_t len); + #if ARDUINOJSON_VERSION_MAJOR >= 6 + bool overflowed() const { return _jsonBuffer.overflowed(); } + #endif +}; + +typedef std::function ArMessagePackRequestHandlerFunction; + +class AsyncCallbackMessagePackWebHandler : public AsyncWebHandler { + protected: + String _uri; + WebRequestMethodComposite _method; + ArMessagePackRequestHandlerFunction _onRequest; + size_t _contentLength; + #if ARDUINOJSON_VERSION_MAJOR == 6 + size_t maxJsonBufferSize; + #endif + size_t _maxContentLength; + + public: + #if ARDUINOJSON_VERSION_MAJOR == 6 + AsyncCallbackMessagePackWebHandler(const String& uri, ArMessagePackRequestHandlerFunction onRequest = nullptr, size_t maxJsonBufferSize = DYNAMIC_JSON_DOCUMENT_SIZE); + #else + AsyncCallbackMessagePackWebHandler(const String& uri, ArMessagePackRequestHandlerFunction onRequest = nullptr); + #endif + + void setMethod(WebRequestMethodComposite method) { _method = method; } + void setMaxContentLength(int maxContentLength) { _maxContentLength = maxContentLength; } + void onRequest(ArMessagePackRequestHandlerFunction fn) { _onRequest = fn; } + + bool canHandle(AsyncWebServerRequest* request) const override final; + void handleRequest(AsyncWebServerRequest* request) override final; + void handleUpload(__unused AsyncWebServerRequest* request, __unused const String& filename, __unused size_t index, __unused uint8_t* data, __unused size_t len, __unused bool final) override final {} + void handleBody(AsyncWebServerRequest* request, uint8_t* data, size_t len, size_t index, size_t total) override final; + bool isRequestHandlerTrivial() const override final { return !_onRequest; } +}; + +#endif // ASYNC_MSG_PACK_SUPPORT == 1 diff --git a/src/AsyncWebHeader.cpp b/src/AsyncWebHeader.cpp new file mode 100644 index 000000000..ba271a3b6 --- /dev/null +++ b/src/AsyncWebHeader.cpp @@ -0,0 +1,22 @@ +#include + +AsyncWebHeader::AsyncWebHeader(const String& data) { + if (!data) + return; + int index = data.indexOf(':'); + if (index < 0) + return; + _name = data.substring(0, index); + _value = data.substring(index + 2); +} + +String AsyncWebHeader::toString() const { + String str; + str.reserve(_name.length() + _value.length() + 2); + str.concat(_name); + str.concat((char)0x3a); + str.concat((char)0x20); + str.concat(_value); + str.concat(asyncsrv::T_rn); + return str; +} diff --git a/src/AsyncWebSocket.cpp b/src/AsyncWebSocket.cpp index 9bd037a14..9deb74a9d 100644 --- a/src/AsyncWebSocket.cpp +++ b/src/AsyncWebSocket.cpp @@ -18,225 +18,142 @@ License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#include "Arduino.h" #include "AsyncWebSocket.h" +#include "Arduino.h" -#include +#include -#ifndef ESP8266 -extern "C" { -typedef struct { - uint32_t state[5]; - uint32_t count[2]; - unsigned char buffer[64]; -} SHA1_CTX; +#include -void SHA1Transform(uint32_t state[5], const unsigned char buffer[64]); -void SHA1Init(SHA1_CTX* context); -void SHA1Update(SHA1_CTX* context, const unsigned char* data, uint32_t len); -void SHA1Final(unsigned char digest[20], SHA1_CTX* context); -} -#else -#include +#if defined(ESP32) + #if ESP_IDF_VERSION_MAJOR < 5 + #include "BackPort_SHA1Builder.h" + #else + #include + #endif + #include +#elif defined(TARGET_RP2040) || defined(ESP8266) + #include #endif -#define MAX_PRINTF_LEN 64 +using namespace asyncsrv; -size_t webSocketSendFrameWindow(AsyncClient *client){ - if(!client->canSend()) +size_t webSocketSendFrameWindow(AsyncClient* client) { + if (!client || !client->canSend()) return 0; size_t space = client->space(); - if(space < 9) + if (space < 9) return 0; return space - 8; } -size_t webSocketSendFrame(AsyncClient *client, bool final, uint8_t opcode, bool mask, uint8_t *data, size_t len){ - if(!client->canSend()) +size_t webSocketSendFrame(AsyncClient* client, bool final, uint8_t opcode, bool mask, uint8_t* data, size_t len) { + if (!client || !client->canSend()) { + // Serial.println("SF 1"); return 0; + } size_t space = client->space(); - if(space < 2) + if (space < 2) { + // Serial.println("SF 2"); return 0; - uint8_t mbuf[4] = {0,0,0,0}; + } + uint8_t mbuf[4] = {0, 0, 0, 0}; uint8_t headLen = 2; - if(len && mask){ + if (len && mask) { headLen += 4; mbuf[0] = rand() % 0xFF; mbuf[1] = rand() % 0xFF; mbuf[2] = rand() % 0xFF; mbuf[3] = rand() % 0xFF; } - if(len > 125) + if (len > 125) headLen += 2; - if(space < headLen) + if (space < headLen) { + // Serial.println("SF 2"); return 0; + } space -= headLen; - if(len > space) len = space; + if (len > space) + len = space; - uint8_t *buf = (uint8_t*)malloc(headLen); - if(buf == NULL){ - //os_printf("could not malloc %u bytes for frame header\n", headLen); + uint8_t* buf = (uint8_t*)malloc(headLen); + if (buf == NULL) { + // os_printf("could not malloc %u bytes for frame header\n", headLen); + // Serial.println("SF 3"); return 0; } buf[0] = opcode & 0x0F; - if(final) + if (final) buf[0] |= 0x80; - if(len < 126) + if (len < 126) buf[1] = len & 0x7F; else { buf[1] = 126; buf[2] = (uint8_t)((len >> 8) & 0xFF); buf[3] = (uint8_t)(len & 0xFF); } - if(len && mask){ + if (len && mask) { buf[1] |= 0x80; memcpy(buf + (headLen - 4), mbuf, 4); } - if(client->add((const char *)buf, headLen) != headLen){ - //os_printf("error adding %lu header bytes\n", headLen); + if (client->add((const char*)buf, headLen) != headLen) { + // os_printf("error adding %lu header bytes\n", headLen); free(buf); + // Serial.println("SF 4"); return 0; } free(buf); - if(len){ - if(len && mask){ + if (len) { + if (len && mask) { size_t i; - for(i=0;iadd((const char *)data, len) != len){ - //os_printf("error adding %lu data bytes\n", len); + if (client->add((const char*)data, len) != len) { + // os_printf("error adding %lu data bytes\n", len); + // Serial.println("SF 5"); return 0; } } - if(!client->send()){ - //os_printf("error sending frame: %lu\n", headLen+len); + if (!client->send()) { + // os_printf("error sending frame: %lu\n", headLen+len); + // Serial.println("SF 6"); return 0; } + // Serial.println("SF"); return len; } - /* * AsyncWebSocketMessageBuffer */ - - -AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer() - :_data(nullptr) - ,_len(0) - ,_lock(false) - ,_count(0) -{ - -} - -AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(uint8_t * data, size_t size) - :_data(nullptr) - ,_len(size) - ,_lock(false) - ,_count(0) -{ - - if (!data) { - return; - } - - _data = new uint8_t[_len + 1]; - - if (_data) { - memcpy(_data, data, _len); - _data[_len] = 0; +AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(const uint8_t* data, size_t size) + : _buffer(std::make_shared>(size)) { + if (_buffer->capacity() < size) { + _buffer->reserve(size); + } else { + std::memcpy(_buffer->data(), data, size); } } - AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(size_t size) - :_data(nullptr) - ,_len(size) - ,_lock(false) - ,_count(0) -{ - _data = new uint8_t[_len + 1]; - - if (_data) { - _data[_len] = 0; + : _buffer(std::make_shared>(size)) { + if (_buffer->capacity() < size) { + _buffer->reserve(size); } - -} - -AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(const AsyncWebSocketMessageBuffer & copy) - :_data(nullptr) - ,_len(0) - ,_lock(false) - ,_count(0) -{ - _len = copy._len; - _lock = copy._lock; - _count = 0; - - if (_len) { - _data = new uint8_t[_len + 1]; - _data[_len] = 0; - } - - if (_data) { - memcpy(_data, copy._data, _len); - _data[_len] = 0; - } - } -AsyncWebSocketMessageBuffer::AsyncWebSocketMessageBuffer(AsyncWebSocketMessageBuffer && copy) - :_data(nullptr) - ,_len(0) - ,_lock(false) - ,_count(0) -{ - _len = copy._len; - _lock = copy._lock; - _count = 0; - - if (copy._data) { - _data = copy._data; - copy._data = nullptr; - } - -} - -AsyncWebSocketMessageBuffer::~AsyncWebSocketMessageBuffer() -{ - if (_data) { - delete[] _data; - } +bool AsyncWebSocketMessageBuffer::reserve(size_t size) { + if (_buffer->capacity() >= size) + return true; + _buffer->reserve(size); + return _buffer->capacity() >= size; } -bool AsyncWebSocketMessageBuffer::reserve(size_t size) -{ - _len = size; - - if (_data) { - delete[] _data; - _data = nullptr; - } - - _data = new uint8_t[_len + 1]; - - if (_data) { - _data[_len] = 0; - return true; - } else { - return false; - } - -} - - - /* * Control Frame */ @@ -244,239 +161,118 @@ bool AsyncWebSocketMessageBuffer::reserve(size_t size) class AsyncWebSocketControl { private: uint8_t _opcode; - uint8_t *_data; + uint8_t* _data; size_t _len; bool _mask; bool _finished; + public: - AsyncWebSocketControl(uint8_t opcode, uint8_t *data=NULL, size_t len=0, bool mask=false) - :_opcode(opcode) - ,_len(len) - ,_mask(len && mask) - ,_finished(false) - { - if(data == NULL) + AsyncWebSocketControl(uint8_t opcode, const uint8_t* data = NULL, size_t len = 0, bool mask = false) + : _opcode(opcode), _len(len), _mask(len && mask), _finished(false) { + if (data == NULL) _len = 0; - if(_len){ - if(_len > 125) + if (_len) { + if (_len > 125) _len = 125; + _data = (uint8_t*)malloc(_len); - if(_data == NULL) + + if (_data == NULL) _len = 0; - else memcpy(_data, data, len); - } else _data = NULL; + else + memcpy(_data, data, len); + } else + _data = NULL; } - virtual ~AsyncWebSocketControl(){ - if(_data != NULL) + + ~AsyncWebSocketControl() { + if (_data != NULL) free(_data); } - virtual bool finished() const { return _finished; } - uint8_t opcode(){ return _opcode; } - uint8_t len(){ return _len + 2; } - size_t send(AsyncClient *client){ + + bool finished() const { return _finished; } + uint8_t opcode() { return _opcode; } + uint8_t len() { return _len + 2; } + size_t send(AsyncClient* client) { _finished = true; return webSocketSendFrame(client, true, _opcode & 0x0F, _mask, _data, _len); } }; /* - * Basic Buffered Message + * AsyncWebSocketMessage Message */ - -AsyncWebSocketBasicMessage::AsyncWebSocketBasicMessage(const char * data, size_t len, uint8_t opcode, bool mask) - :_len(len) - ,_sent(0) - ,_ack(0) - ,_acked(0) -{ - _opcode = opcode & 0x07; - _mask = mask; - _data = (uint8_t*)malloc(_len+1); - if(_data == NULL){ - _len = 0; - _status = WS_MSG_ERROR; - } else { - _status = WS_MSG_SENDING; - memcpy(_data, data, _len); - _data[_len] = 0; - } -} -AsyncWebSocketBasicMessage::AsyncWebSocketBasicMessage(uint8_t opcode, bool mask) - :_len(0) - ,_sent(0) - ,_ack(0) - ,_acked(0) - ,_data(NULL) -{ - _opcode = opcode & 0x07; - _mask = mask; - -} - - -AsyncWebSocketBasicMessage::~AsyncWebSocketBasicMessage() { - if(_data != NULL) - free(_data); +AsyncWebSocketMessage::AsyncWebSocketMessage(AsyncWebSocketSharedBuffer buffer, uint8_t opcode, bool mask) : _WSbuffer{buffer}, + _opcode(opcode & 0x07), + _mask{mask}, + _status{_WSbuffer ? WS_MSG_SENDING : WS_MSG_ERROR} { } - void AsyncWebSocketBasicMessage::ack(size_t len, uint32_t time) { +void AsyncWebSocketMessage::ack(size_t len, uint32_t time) { + (void)time; _acked += len; - if(_sent == _len && _acked == _ack){ + if (_sent >= _WSbuffer->size() && _acked >= _ack) { _status = WS_MSG_SENT; } + // ets_printf("A: %u\n", len); } - size_t AsyncWebSocketBasicMessage::send(AsyncClient *client) { - if(_status != WS_MSG_SENDING) + +size_t AsyncWebSocketMessage::send(AsyncClient* client) { + if (!client) + return 0; + + if (_status != WS_MSG_SENDING) return 0; - if(_acked < _ack){ + if (_acked < _ack) { return 0; } - if(_sent == _len){ - if(_acked == _ack) + if (_sent == _WSbuffer->size()) { + if (_acked == _ack) _status = WS_MSG_SENT; return 0; } - if(_sent > _len){ - _status = WS_MSG_ERROR; - return 0; - } - - size_t toSend = _len - _sent; - size_t window = webSocketSendFrameWindow(client); - - if(window < toSend) { - toSend = window; - } - - _sent += toSend; - _ack += toSend + ((toSend < 126)?2:4) + (_mask * 4); - - bool final = (_sent == _len); - uint8_t* dPtr = (uint8_t*)(_data + (_sent - toSend)); - uint8_t opCode = (toSend && _sent == toSend)?_opcode:(uint8_t)WS_CONTINUATION; - - size_t sent = webSocketSendFrame(client, final, opCode, _mask, dPtr, toSend); - _status = WS_MSG_SENDING; - if(toSend && sent != toSend){ - _sent -= (toSend - sent); - _ack -= (toSend - sent); - } - return sent; -} - -// bool AsyncWebSocketBasicMessage::reserve(size_t size) { -// if (size) { -// _data = (uint8_t*)malloc(size +1); -// if (_data) { -// memset(_data, 0, size); -// _len = size; -// _status = WS_MSG_SENDING; -// return true; -// } -// } -// return false; -// } - - -/* - * AsyncWebSocketMultiMessage Message - */ - - -AsyncWebSocketMultiMessage::AsyncWebSocketMultiMessage(AsyncWebSocketMessageBuffer * buffer, uint8_t opcode, bool mask) - :_len(0) - ,_sent(0) - ,_ack(0) - ,_acked(0) - ,_WSbuffer(nullptr) -{ - - _opcode = opcode & 0x07; - _mask = mask; - - if (buffer) { - _WSbuffer = buffer; - (*_WSbuffer)++; - _data = buffer->get(); - _len = buffer->length(); - _status = WS_MSG_SENDING; - //ets_printf("M: %u\n", _len); - } else { + if (_sent > _WSbuffer->size()) { _status = WS_MSG_ERROR; - } - -} - - -AsyncWebSocketMultiMessage::~AsyncWebSocketMultiMessage() { - if (_WSbuffer) { - (*_WSbuffer)--; // decreases the counter. - } -} - - void AsyncWebSocketMultiMessage::ack(size_t len, uint32_t time) { - _acked += len; - if(_sent >= _len && _acked >= _ack){ - _status = WS_MSG_SENT; - } - //ets_printf("A: %u\n", len); -} - size_t AsyncWebSocketMultiMessage::send(AsyncClient *client) { - if(_status != WS_MSG_SENDING) - return 0; - if(_acked < _ack){ + // ets_printf("E: %u > %u\n", _sent, _WSbuffer->length()); return 0; } - if(_sent == _len){ - _status = WS_MSG_SENT; - return 0; - } - if(_sent > _len){ - _status = WS_MSG_ERROR; - //ets_printf("E: %u > %u\n", _sent, _len); - return 0; - } - size_t toSend = _len - _sent; + size_t toSend = _WSbuffer->size() - _sent; size_t window = webSocketSendFrameWindow(client); - if(window < toSend) { - toSend = window; + if (window < toSend) { + toSend = window; } _sent += toSend; - _ack += toSend + ((toSend < 126)?2:4) + (_mask * 4); + _ack += toSend + ((toSend < 126) ? 2 : 4) + (_mask * 4); - //ets_printf("W: %u %u\n", _sent - toSend, toSend); + // ets_printf("W: %u %u\n", _sent - toSend, toSend); - bool final = (_sent == _len); - uint8_t* dPtr = (uint8_t*)(_data + (_sent - toSend)); - uint8_t opCode = (toSend && _sent == toSend)?_opcode:(uint8_t)WS_CONTINUATION; + bool final = (_sent == _WSbuffer->size()); + uint8_t* dPtr = (uint8_t*)(_WSbuffer->data() + (_sent - toSend)); + uint8_t opCode = (toSend && _sent == toSend) ? _opcode : (uint8_t)WS_CONTINUATION; size_t sent = webSocketSendFrame(client, final, opCode, _mask, dPtr, toSend); _status = WS_MSG_SENDING; - if(toSend && sent != toSend){ - //ets_printf("E: %u != %u\n", toSend, sent); - _sent -= (toSend - sent); - _ack -= (toSend - sent); + if (toSend && sent != toSend) { + // ets_printf("E: %u != %u\n", toSend, sent); + _sent -= (toSend - sent); + _ack -= (toSend - sent); } - //ets_printf("S: %u %u\n", _sent, sent); + // ets_printf("S: %u %u\n", _sent, sent); return sent; } - /* * Async WebSocket Client */ - const char * AWSC_PING_PAYLOAD = "ESPAsyncWebServer-PING"; - const size_t AWSC_PING_PAYLOAD_LEN = 22; - -AsyncWebSocketClient::AsyncWebSocketClient(AsyncWebServerRequest *request, AsyncWebSocket *server) - : _controlQueue(LinkedList([](AsyncWebSocketControl *c){ delete c; })) - , _messageQueue(LinkedList([](AsyncWebSocketMessage *m){ delete m; })) - , _tempObject(NULL) -{ +const char* AWSC_PING_PAYLOAD = "ESPAsyncWebServer-PING"; +const size_t AWSC_PING_PAYLOAD_LEN = 22; + +AsyncWebSocketClient::AsyncWebSocketClient(AsyncWebServerRequest* request, AsyncWebSocket* server) + : _tempObject(NULL) { _client = request->client(); _server = server; _clientId = _server->_getNextId(); @@ -485,160 +281,253 @@ AsyncWebSocketClient::AsyncWebSocketClient(AsyncWebServerRequest *request, Async _lastMessageTime = millis(); _keepAlivePeriod = 0; _client->setRxTimeout(0); - _client->onError([](void *r, AsyncClient* c, int8_t error){ ((AsyncWebSocketClient*)(r))->_onError(error); }, this); - _client->onAck([](void *r, AsyncClient* c, size_t len, uint32_t time){ ((AsyncWebSocketClient*)(r))->_onAck(len, time); }, this); - _client->onDisconnect([](void *r, AsyncClient* c){ ((AsyncWebSocketClient*)(r))->_onDisconnect(); delete c; }, this); - _client->onTimeout([](void *r, AsyncClient* c, uint32_t time){ ((AsyncWebSocketClient*)(r))->_onTimeout(time); }, this); - _client->onData([](void *r, AsyncClient* c, void *buf, size_t len){ ((AsyncWebSocketClient*)(r))->_onData(buf, len); }, this); - _client->onPoll([](void *r, AsyncClient* c){ ((AsyncWebSocketClient*)(r))->_onPoll(); }, this); - _server->_addClient(this); - _server->_handleEvent(this, WS_EVT_CONNECT, NULL, NULL, 0); + _client->onError([](void* r, AsyncClient* c, int8_t error) { (void)c; ((AsyncWebSocketClient*)(r))->_onError(error); }, this); + _client->onAck([](void* r, AsyncClient* c, size_t len, uint32_t time) { (void)c; ((AsyncWebSocketClient*)(r))->_onAck(len, time); }, this); + _client->onDisconnect([](void* r, AsyncClient* c) { ((AsyncWebSocketClient*)(r))->_onDisconnect(); delete c; }, this); + _client->onTimeout([](void* r, AsyncClient* c, uint32_t time) { (void)c; ((AsyncWebSocketClient*)(r))->_onTimeout(time); }, this); + _client->onData([](void* r, AsyncClient* c, void* buf, size_t len) { (void)c; ((AsyncWebSocketClient*)(r))->_onData(buf, len); }, this); + _client->onPoll([](void* r, AsyncClient* c) { (void)c; ((AsyncWebSocketClient*)(r))->_onPoll(); }, this); delete request; + memset(&_pinfo, 0, sizeof(_pinfo)); } -AsyncWebSocketClient::~AsyncWebSocketClient(){ - _messageQueue.free(); - _controlQueue.free(); +AsyncWebSocketClient::~AsyncWebSocketClient() { + { +#ifdef ESP32 + std::lock_guard lock(_lock); +#endif + _messageQueue.clear(); + _controlQueue.clear(); + } _server->_handleEvent(this, WS_EVT_DISCONNECT, NULL, NULL, 0); } -void AsyncWebSocketClient::_onAck(size_t len, uint32_t time){ +void AsyncWebSocketClient::_clearQueue() { + while (!_messageQueue.empty() && _messageQueue.front().finished()) + _messageQueue.pop_front(); +} + +void AsyncWebSocketClient::_onAck(size_t len, uint32_t time) { _lastMessageTime = millis(); - if(!_controlQueue.isEmpty()){ - auto head = _controlQueue.front(); - if(head->finished()){ - len -= head->len(); - if(_status == WS_DISCONNECTING && head->opcode() == WS_DISCONNECT){ - _controlQueue.remove(head); + +#ifdef ESP32 + std::lock_guard lock(_lock); +#endif + + if (!_controlQueue.empty()) { + auto& head = _controlQueue.front(); + if (head.finished()) { + len -= head.len(); + if (_status == WS_DISCONNECTING && head.opcode() == WS_DISCONNECT) { + _controlQueue.pop_front(); _status = WS_DISCONNECTED; - _client->close(true); + if (_client) + _client->close(true); return; } - _controlQueue.remove(head); + _controlQueue.pop_front(); } } - if(len && !_messageQueue.isEmpty()){ - _messageQueue.front()->ack(len, time); + + if (len && !_messageQueue.empty()) { + _messageQueue.front().ack(len, time); } - _server->_cleanBuffers(); + + _clearQueue(); + _runQueue(); } -void AsyncWebSocketClient::_onPoll(){ - if(_client->canSend() && (!_controlQueue.isEmpty() || !_messageQueue.isEmpty())){ +void AsyncWebSocketClient::_onPoll() { + if (!_client) + return; + +#ifdef ESP32 + std::unique_lock lock(_lock); +#endif + if (_client && _client->canSend() && (!_controlQueue.empty() || !_messageQueue.empty())) { _runQueue(); - } else if(_keepAlivePeriod > 0 && _controlQueue.isEmpty() && _messageQueue.isEmpty() && (millis() - _lastMessageTime) >= _keepAlivePeriod){ - ping((uint8_t *)AWSC_PING_PAYLOAD, AWSC_PING_PAYLOAD_LEN); + } else if (_keepAlivePeriod > 0 && (millis() - _lastMessageTime) >= _keepAlivePeriod && (_controlQueue.empty() && _messageQueue.empty())) { +#ifdef ESP32 + lock.unlock(); +#endif + ping((uint8_t*)AWSC_PING_PAYLOAD, AWSC_PING_PAYLOAD_LEN); } } -void AsyncWebSocketClient::_runQueue(){ - while(!_messageQueue.isEmpty() && _messageQueue.front()->finished()){ - _messageQueue.remove(_messageQueue.front()); - } +void AsyncWebSocketClient::_runQueue() { + // all calls to this method MUST be protected by a mutex lock! + if (!_client) + return; + + _clearQueue(); - if(!_controlQueue.isEmpty() && (_messageQueue.isEmpty() || _messageQueue.front()->betweenFrames()) && webSocketSendFrameWindow(_client) > (size_t)(_controlQueue.front()->len() - 1)){ - _controlQueue.front()->send(_client); - } else if(!_messageQueue.isEmpty() && _messageQueue.front()->betweenFrames() && webSocketSendFrameWindow(_client)){ - _messageQueue.front()->send(_client); + if (!_controlQueue.empty() && (_messageQueue.empty() || _messageQueue.front().betweenFrames()) && webSocketSendFrameWindow(_client) > (size_t)(_controlQueue.front().len() - 1)) { + _controlQueue.front().send(_client); + } else if (!_messageQueue.empty() && _messageQueue.front().betweenFrames() && webSocketSendFrameWindow(_client)) { + _messageQueue.front().send(_client); } } -bool AsyncWebSocketClient::queueIsFull(){ - if((_messageQueue.length() >= WS_MAX_QUEUED_MESSAGES) || (_status != WS_CONNECTED) ) return true; - return false; +bool AsyncWebSocketClient::queueIsFull() const { +#ifdef ESP32 + std::lock_guard lock(_lock); +#endif + return (_messageQueue.size() >= WS_MAX_QUEUED_MESSAGES) || (_status != WS_CONNECTED); } -void AsyncWebSocketClient::_queueMessage(AsyncWebSocketMessage *dataMessage){ - if(dataMessage == NULL) - return; - if(_status != WS_CONNECTED){ - delete dataMessage; - return; - } - if(_messageQueue.length() >= WS_MAX_QUEUED_MESSAGES){ - ets_printf("ERROR: Too many messages queued\n"); - delete dataMessage; - } else { - _messageQueue.add(dataMessage); - } - if(_client->canSend()) +size_t AsyncWebSocketClient::queueLen() const { +#ifdef ESP32 + std::lock_guard lock(_lock); +#endif + return _messageQueue.size(); +} + +bool AsyncWebSocketClient::canSend() const { +#ifdef ESP32 + std::lock_guard lock(_lock); +#endif + return _messageQueue.size() < WS_MAX_QUEUED_MESSAGES; +} + +bool AsyncWebSocketClient::_queueControl(uint8_t opcode, const uint8_t* data, size_t len, bool mask) { + if (!_client) + return false; + +#ifdef ESP32 + std::lock_guard lock(_lock); +#endif + + _controlQueue.emplace_back(opcode, data, len, mask); + + if (_client && _client->canSend()) _runQueue(); + + return true; } -void AsyncWebSocketClient::_queueControl(AsyncWebSocketControl *controlMessage){ - if(controlMessage == NULL) - return; - _controlQueue.add(controlMessage); - if(_client->canSend()) +bool AsyncWebSocketClient::_queueMessage(AsyncWebSocketSharedBuffer buffer, uint8_t opcode, bool mask) { + if (!_client || buffer->size() == 0 || _status != WS_CONNECTED) + return false; + +#ifdef ESP32 + std::lock_guard lock(_lock); +#endif + + if (_messageQueue.size() >= WS_MAX_QUEUED_MESSAGES) { + if (closeWhenFull) { + _status = WS_DISCONNECTED; + + if (_client) + _client->close(true); + +#ifdef ESP8266 + ets_printf("AsyncWebSocketClient::_queueMessage: Too many messages queued: closing connection\n"); +#elif defined(ESP32) + log_e("Too many messages queued: closing connection"); +#endif + + } else { +#ifdef ESP8266 + ets_printf("AsyncWebSocketClient::_queueMessage: Too many messages queued: discarding new message\n"); +#elif defined(ESP32) + log_e("Too many messages queued: discarding new message"); +#endif + } + + return false; + } + + _messageQueue.emplace_back(buffer, opcode, mask); + + if (_client && _client->canSend()) _runQueue(); + + return true; } -void AsyncWebSocketClient::close(uint16_t code, const char * message){ - if(_status != WS_CONNECTED) +void AsyncWebSocketClient::close(uint16_t code, const char* message) { + if (_status != WS_CONNECTED) return; - if(code){ + + _status = WS_DISCONNECTING; + + if (code) { uint8_t packetLen = 2; - if(message != NULL){ + if (message != NULL) { size_t mlen = strlen(message); - if(mlen > 123) mlen = 123; + if (mlen > 123) + mlen = 123; packetLen += mlen; } - char * buf = (char*)malloc(packetLen); - if(buf != NULL){ + char* buf = (char*)malloc(packetLen); + if (buf != NULL) { buf[0] = (uint8_t)(code >> 8); buf[1] = (uint8_t)(code & 0xFF); - if(message != NULL){ - memcpy(buf+2, message, packetLen -2); + if (message != NULL) { + memcpy(buf + 2, message, packetLen - 2); } - _queueControl(new AsyncWebSocketControl(WS_DISCONNECT,(uint8_t*)buf,packetLen)); + _queueControl(WS_DISCONNECT, (uint8_t*)buf, packetLen); free(buf); return; } } - _queueControl(new AsyncWebSocketControl(WS_DISCONNECT)); + _queueControl(WS_DISCONNECT); } -void AsyncWebSocketClient::ping(uint8_t *data, size_t len){ - if(_status == WS_CONNECTED) - _queueControl(new AsyncWebSocketControl(WS_PING, data, len)); +bool AsyncWebSocketClient::ping(const uint8_t* data, size_t len) { + return _status == WS_CONNECTED && _queueControl(WS_PING, data, len); } -void AsyncWebSocketClient::_onError(int8_t){} +void AsyncWebSocketClient::_onError(int8_t) { + // Serial.println("onErr"); +} -void AsyncWebSocketClient::_onTimeout(uint32_t time){ +void AsyncWebSocketClient::_onTimeout(uint32_t time) { + if (!_client) + return; + // Serial.println("onTime"); + (void)time; _client->close(true); } -void AsyncWebSocketClient::_onDisconnect(){ - _client = NULL; - _server->_handleDisconnect(this); +void AsyncWebSocketClient::_onDisconnect() { + // Serial.println("onDis"); + _client = nullptr; } -void AsyncWebSocketClient::_onData(void *pbuf, size_t plen){ +void AsyncWebSocketClient::_onData(void* pbuf, size_t plen) { _lastMessageTime = millis(); - uint8_t *data = (uint8_t*)pbuf; - while(plen > 0){ - if(!_pstate){ - const uint8_t *fdata = data; + uint8_t* data = (uint8_t*)pbuf; + while (plen > 0) { + if (!_pstate) { + const uint8_t* fdata = data; + _pinfo.index = 0; _pinfo.final = (fdata[0] & 0x80) != 0; _pinfo.opcode = fdata[0] & 0x0F; _pinfo.masked = (fdata[1] & 0x80) != 0; _pinfo.len = fdata[1] & 0x7F; + + // log_d("WS[%" PRIu32 "]: _onData: %" PRIu32, _clientId, plen); + // log_d("WS[%" PRIu32 "]: _status = %" PRIu32, _clientId, _status); + // log_d("WS[%" PRIu32 "]: _pinfo: index: %" PRIu64 ", final: %" PRIu8 ", opcode: %" PRIu8 ", masked: %" PRIu8 ", len: %" PRIu64, _clientId, _pinfo.index, _pinfo.final, _pinfo.opcode, _pinfo.masked, _pinfo.len); + data += 2; plen -= 2; - if(_pinfo.len == 126){ + + if (_pinfo.len == 126 && plen >= 2) { _pinfo.len = fdata[3] | (uint16_t)(fdata[2]) << 8; data += 2; plen -= 2; - } else if(_pinfo.len == 127){ + + } else if (_pinfo.len == 127 && plen >= 8) { _pinfo.len = fdata[9] | (uint16_t)(fdata[8]) << 8 | (uint32_t)(fdata[7]) << 16 | (uint32_t)(fdata[6]) << 24 | (uint64_t)(fdata[5]) << 32 | (uint64_t)(fdata[4]) << 40 | (uint64_t)(fdata[3]) << 48 | (uint64_t)(fdata[2]) << 56; data += 8; plen -= 8; } - if(_pinfo.masked){ + if (_pinfo.masked && plen >= 4) { // if ws.close() is called, Safari sends a close frame with plen 2 and masked bit set. We must not decrement plen which is already 0. memcpy(_pinfo.mask, data, 4); data += 4; plen -= 4; @@ -648,56 +537,65 @@ void AsyncWebSocketClient::_onData(void *pbuf, size_t plen){ const size_t datalen = std::min((size_t)(_pinfo.len - _pinfo.index), plen); const auto datalast = data[datalen]; - if(_pinfo.masked){ - for(size_t i=0;i_handleEvent(this, WS_EVT_DATA, (void *)&_pinfo, (uint8_t*)data, datalen); + if (datalen > 0) + _server->_handleEvent(this, WS_EVT_DATA, (void*)&_pinfo, data, datalen); _pinfo.index += datalen; - } else if((datalen + _pinfo.index) == _pinfo.len){ + } else if ((datalen + _pinfo.index) == _pinfo.len) { _pstate = 0; - if(_pinfo.opcode == WS_DISCONNECT){ - if(datalen){ + if (_pinfo.opcode == WS_DISCONNECT) { + if (datalen) { uint16_t reasonCode = (uint16_t)(data[0] << 8) + data[1]; - char * reasonString = (char*)(data+2); - if(reasonCode > 1001){ - _server->_handleEvent(this, WS_EVT_ERROR, (void *)&reasonCode, (uint8_t*)reasonString, strlen(reasonString)); + char* reasonString = (char*)(data + 2); + if (reasonCode > 1001) { + _server->_handleEvent(this, WS_EVT_ERROR, (void*)&reasonCode, (uint8_t*)reasonString, strlen(reasonString)); } } - if(_status == WS_DISCONNECTING){ + if (_status == WS_DISCONNECTING) { _status = WS_DISCONNECTED; - _client->close(true); + if (_client) + _client->close(true); } else { _status = WS_DISCONNECTING; - _queueControl(new AsyncWebSocketControl(WS_DISCONNECT, data, datalen)); + if (_client) + _client->ackLater(); + _queueControl(WS_DISCONNECT, data, datalen); } - } else if(_pinfo.opcode == WS_PING){ - _queueControl(new AsyncWebSocketControl(WS_PONG, data, datalen)); - } else if(_pinfo.opcode == WS_PONG){ - if(datalen != AWSC_PING_PAYLOAD_LEN || memcmp(AWSC_PING_PAYLOAD, data, AWSC_PING_PAYLOAD_LEN) != 0) - _server->_handleEvent(this, WS_EVT_PONG, NULL, data, datalen); - } else if(_pinfo.opcode < 8){//continuation or text/binary frame - _server->_handleEvent(this, WS_EVT_DATA, (void *)&_pinfo, data, datalen); + } else if (_pinfo.opcode == WS_PING) { + _server->_handleEvent(this, WS_EVT_PING, NULL, NULL, 0); + _queueControl(WS_PONG, data, datalen); + } else if (_pinfo.opcode == WS_PONG) { + if (datalen != AWSC_PING_PAYLOAD_LEN || memcmp(AWSC_PING_PAYLOAD, data, AWSC_PING_PAYLOAD_LEN) != 0) + _server->_handleEvent(this, WS_EVT_PONG, NULL, NULL, 0); + } else if (_pinfo.opcode < WS_DISCONNECT) { // continuation or text/binary frame + _server->_handleEvent(this, WS_EVT_DATA, (void*)&_pinfo, data, datalen); + if (_pinfo.final) + _pinfo.num = 0; + else + _pinfo.num += 1; } } else { - //os_printf("frame error: len: %u, index: %llu, total: %llu\n", datalen, _pinfo.index, _pinfo.len); - //what should we do? + // os_printf("frame error: len: %u, index: %llu, total: %llu\n", datalen, _pinfo.index, _pinfo.len); + // what should we do? break; } // restore byte as _handleEvent may have added a null terminator i.e., data[len] = 0; - if (datalen > 0) + if (datalen) data[datalen] = datalast; data += datalen; @@ -705,302 +603,443 @@ void AsyncWebSocketClient::_onData(void *pbuf, size_t plen){ } } -size_t AsyncWebSocketClient::printf(const char *format, ...) { +size_t AsyncWebSocketClient::printf(const char* format, ...) { va_list arg; va_start(arg, format); - char* temp = new char[MAX_PRINTF_LEN]; - if(!temp){ + size_t len = vsnprintf(nullptr, 0, format, arg); + va_end(arg); + + if (len == 0) return 0; - } - char* buffer = temp; - size_t len = vsnprintf(temp, MAX_PRINTF_LEN, format, arg); + + char* buffer = new char[len + 1]; + + if (!buffer) + return 0; + + va_start(arg, format); + len = vsnprintf(buffer, len + 1, format, arg); va_end(arg); - if (len > (MAX_PRINTF_LEN - 1)) { - buffer = new char[len + 1]; - if (!buffer) { - delete[] temp; - return 0; - } - va_start(arg, format); - vsnprintf(buffer, len + 1, format, arg); - va_end(arg); - } - text(buffer, len); - if (buffer != temp) { - delete[] buffer; - } - delete[] temp; - return len; + bool enqueued = text(buffer, len); + delete[] buffer; + return enqueued ? len : 0; } -#ifndef ESP32 +#ifdef ESP8266 size_t AsyncWebSocketClient::printf_P(PGM_P formatP, ...) { va_list arg; va_start(arg, formatP); - char* temp = new char[MAX_PRINTF_LEN]; - if(!temp){ + size_t len = vsnprintf_P(nullptr, 0, formatP, arg); + va_end(arg); + + if (len == 0) return 0; - } - char* buffer = temp; - size_t len = vsnprintf_P(temp, MAX_PRINTF_LEN, formatP, arg); + + char* buffer = new char[len + 1]; + + if (!buffer) + return 0; + + va_start(arg, formatP); + len = vsnprintf_P(buffer, len + 1, formatP, arg); va_end(arg); - if (len > (MAX_PRINTF_LEN - 1)) { - buffer = new char[len + 1]; - if (!buffer) { - delete[] temp; - return 0; - } - va_start(arg, formatP); - vsnprintf_P(buffer, len + 1, formatP, arg); - va_end(arg); + bool enqueued = text(buffer, len); + delete[] buffer; + return enqueued ? len : 0; +} +#endif + +namespace { + AsyncWebSocketSharedBuffer makeSharedBuffer(const uint8_t* message, size_t len) { + auto buffer = std::make_shared>(len); + std::memcpy(buffer->data(), message, len); + return buffer; } - text(buffer, len); - if (buffer != temp) { - delete[] buffer; +} + +bool AsyncWebSocketClient::text(AsyncWebSocketMessageBuffer* buffer) { + bool enqueued = false; + if (buffer) { + enqueued = text(std::move(buffer->_buffer)); + delete buffer; } - delete[] temp; - return len; + return enqueued; } -#endif -void AsyncWebSocketClient::text(const char * message, size_t len){ - _queueMessage(new AsyncWebSocketBasicMessage(message, len)); +bool AsyncWebSocketClient::text(AsyncWebSocketSharedBuffer buffer) { + return _queueMessage(buffer); } -void AsyncWebSocketClient::text(const char * message){ - text(message, strlen(message)); + +bool AsyncWebSocketClient::text(const uint8_t* message, size_t len) { + return text(makeSharedBuffer(message, len)); } -void AsyncWebSocketClient::text(uint8_t * message, size_t len){ - text((const char *)message, len); + +bool AsyncWebSocketClient::text(const char* message, size_t len) { + return text((const uint8_t*)message, len); } -void AsyncWebSocketClient::text(char * message){ - text(message, strlen(message)); + +bool AsyncWebSocketClient::text(const char* message) { + return text(message, strlen(message)); } -void AsyncWebSocketClient::text(const String &message){ - text(message.c_str(), message.length()); + +bool AsyncWebSocketClient::text(const String& message) { + return text(message.c_str(), message.length()); } -void AsyncWebSocketClient::text(const __FlashStringHelper *data){ + +#ifdef ESP8266 +bool AsyncWebSocketClient::text(const __FlashStringHelper* data) { PGM_P p = reinterpret_cast(data); + size_t n = 0; while (1) { - if (pgm_read_byte(p+n) == 0) break; - n += 1; + if (pgm_read_byte(p + n) == 0) + break; + n += 1; } - char * message = (char*) malloc(n+1); - if(message){ - for(size_t b=0; b_buffer)); + delete buffer; + } + return enqueued; } -void AsyncWebSocketClient::binary(const char * message, size_t len){ - _queueMessage(new AsyncWebSocketBasicMessage(message, len, WS_BINARY)); +bool AsyncWebSocketClient::binary(AsyncWebSocketSharedBuffer buffer) { + return _queueMessage(buffer, WS_BINARY); } -void AsyncWebSocketClient::binary(const char * message){ - binary(message, strlen(message)); + +bool AsyncWebSocketClient::binary(const uint8_t* message, size_t len) { + return binary(makeSharedBuffer(message, len)); } -void AsyncWebSocketClient::binary(uint8_t * message, size_t len){ - binary((const char *)message, len); + +bool AsyncWebSocketClient::binary(const char* message, size_t len) { + return binary((const uint8_t*)message, len); } -void AsyncWebSocketClient::binary(char * message){ - binary(message, strlen(message)); + +bool AsyncWebSocketClient::binary(const char* message) { + return binary(message, strlen(message)); } -void AsyncWebSocketClient::binary(const String &message){ - binary(message.c_str(), message.length()); + +bool AsyncWebSocketClient::binary(const String& message) { + return binary(message.c_str(), message.length()); } -void AsyncWebSocketClient::binary(const __FlashStringHelper *data, size_t len){ + +#ifdef ESP8266 +bool AsyncWebSocketClient::binary(const __FlashStringHelper* data, size_t len) { PGM_P p = reinterpret_cast(data); - char * message = (char*) malloc(len); - if(message){ - for(size_t b=0; bremoteIP(); -} +IPAddress AsyncWebSocketClient::remoteIP() const { + if (!_client) + return IPAddress((uint32_t)0U); -uint16_t AsyncWebSocketClient::remotePort() { - if(!_client) { - return 0; - } - return _client->remotePort(); + return _client->remoteIP(); } +uint16_t AsyncWebSocketClient::remotePort() const { + if (!_client) + return 0; + return _client->remotePort(); +} /* * Async Web Socket - Each separate socket location */ -AsyncWebSocket::AsyncWebSocket(const String& url) - :_url(url) - ,_clients(LinkedList([](AsyncWebSocketClient *c){ delete c; })) - ,_cNextId(1) - ,_enabled(true) - ,_buffers(LinkedList([](AsyncWebSocketMessageBuffer *b){ delete b; })) -{ - _eventHandler = NULL; +void AsyncWebSocket::_handleEvent(AsyncWebSocketClient* client, AwsEventType type, void* arg, uint8_t* data, size_t len) { + if (_eventHandler != NULL) { + _eventHandler(this, client, type, arg, data, len); + } } -AsyncWebSocket::~AsyncWebSocket(){} +AsyncWebSocketClient* AsyncWebSocket::_newClient(AsyncWebServerRequest* request) { + _clients.emplace_back(request, this); + _handleEvent(&_clients.back(), WS_EVT_CONNECT, request, NULL, 0); + return &_clients.back(); +} -void AsyncWebSocket::_handleEvent(AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len){ - if(_eventHandler != NULL){ - _eventHandler(this, client, type, arg, data, len); - } +bool AsyncWebSocket::availableForWriteAll() { + return std::none_of(std::begin(_clients), std::end(_clients), [](const AsyncWebSocketClient& c) { return c.queueIsFull(); }); } -void AsyncWebSocket::_addClient(AsyncWebSocketClient * client){ - _clients.add(client); +bool AsyncWebSocket::availableForWrite(uint32_t id) { + const auto iter = std::find_if(std::begin(_clients), std::end(_clients), [id](const AsyncWebSocketClient& c) { return c.id() == id; }); + if (iter == std::end(_clients)) + return true; + return !iter->queueIsFull(); } -void AsyncWebSocket::_handleDisconnect(AsyncWebSocketClient * client){ - - _clients.remove_first([=](AsyncWebSocketClient * c){ - return c->id() == client->id(); - }); +size_t AsyncWebSocket::count() const { + return std::count_if(std::begin(_clients), std::end(_clients), [](const AsyncWebSocketClient& c) { return c.status() == WS_CONNECTED; }); } -bool AsyncWebSocket::availableForWriteAll(){ - for(const auto& c: _clients){ - if(c->queueIsFull()) return false; - } - return true; +AsyncWebSocketClient* AsyncWebSocket::client(uint32_t id) { + const auto iter = std::find_if(_clients.begin(), _clients.end(), [id](const AsyncWebSocketClient& c) { return c.id() == id && c.status() == WS_CONNECTED; }); + if (iter == std::end(_clients)) + return nullptr; + + return &(*iter); } -bool AsyncWebSocket::availableForWrite(uint32_t id){ - for(const auto& c: _clients){ - if(c->queueIsFull() && (c->id() == id )) return false; - } - return true; +void AsyncWebSocket::close(uint32_t id, uint16_t code, const char* message) { + if (AsyncWebSocketClient* c = client(id)) + c->close(code, message); } -size_t AsyncWebSocket::count() const { - return _clients.count_if([](AsyncWebSocketClient * c){ - return c->status() == WS_CONNECTED; - }); +void AsyncWebSocket::closeAll(uint16_t code, const char* message) { + for (auto& c : _clients) + if (c.status() == WS_CONNECTED) + c.close(code, message); } -AsyncWebSocketClient * AsyncWebSocket::client(uint32_t id){ - for(const auto &c: _clients){ - if(c->id() == id && c->status() == WS_CONNECTED){ - return c; - } +void AsyncWebSocket::cleanupClients(uint16_t maxClients) { + if (count() > maxClients) + _clients.front().close(); + + for (auto iter = std::begin(_clients); iter != std::end(_clients);) { + if (iter->shouldBeDeleted()) + iter = _clients.erase(iter); + else + iter++; } - return nullptr; } +bool AsyncWebSocket::ping(uint32_t id, const uint8_t* data, size_t len) { + AsyncWebSocketClient* c = client(id); + return c && c->ping(data, len); +} -void AsyncWebSocket::close(uint32_t id, uint16_t code, const char * message){ - AsyncWebSocketClient * c = client(id); - if(c) - c->close(code, message); +AsyncWebSocket::SendStatus AsyncWebSocket::pingAll(const uint8_t* data, size_t len) { + size_t hit = 0; + size_t miss = 0; + for (auto& c : _clients) + if (c.status() == WS_CONNECTED && c.ping(data, len)) + hit++; + else + miss++; + return hit == 0 ? DISCARDED : (miss == 0 ? ENQUEUED : PARTIALLY_ENQUEUED); } -void AsyncWebSocket::closeAll(uint16_t code, const char * message){ - for(const auto& c: _clients){ - if(c->status() == WS_CONNECTED) - c->close(code, message); - } +bool AsyncWebSocket::text(uint32_t id, const uint8_t* message, size_t len) { + AsyncWebSocketClient* c = client(id); + return c && c->text(makeSharedBuffer(message, len)); +} +bool AsyncWebSocket::text(uint32_t id, const char* message, size_t len) { + return text(id, (const uint8_t*)message, len); +} +bool AsyncWebSocket::text(uint32_t id, const char* message) { + return text(id, message, strlen(message)); +} +bool AsyncWebSocket::text(uint32_t id, const String& message) { + return text(id, message.c_str(), message.length()); } -void AsyncWebSocket::ping(uint32_t id, uint8_t *data, size_t len){ - AsyncWebSocketClient * c = client(id); - if(c) - c->ping(data, len); +#ifdef ESP8266 +bool AsyncWebSocket::text(uint32_t id, const __FlashStringHelper* data) { + PGM_P p = reinterpret_cast(data); + + size_t n = 0; + while (true) { + if (pgm_read_byte(p + n) == 0) + break; + n += 1; + } + + char* message = (char*)malloc(n + 1); + bool enqueued = false; + if (message) { + memcpy_P(message, p, n); + message[n] = 0; + enqueued = text(id, message, n); + free(message); + } + return enqueued; } +#endif // ESP8266 -void AsyncWebSocket::pingAll(uint8_t *data, size_t len){ - for(const auto& c: _clients){ - if(c->status() == WS_CONNECTED) - c->ping(data, len); +bool AsyncWebSocket::text(uint32_t id, AsyncWebSocketMessageBuffer* buffer) { + bool enqueued = false; + if (buffer) { + enqueued = text(id, std::move(buffer->_buffer)); + delete buffer; } + return enqueued; +} +bool AsyncWebSocket::text(uint32_t id, AsyncWebSocketSharedBuffer buffer) { + AsyncWebSocketClient* c = client(id); + return c && c->text(buffer); } -void AsyncWebSocket::text(uint32_t id, const char * message, size_t len){ - AsyncWebSocketClient * c = client(id); - if(c) - c->text(message, len); +AsyncWebSocket::SendStatus AsyncWebSocket::textAll(const uint8_t* message, size_t len) { + return textAll(makeSharedBuffer(message, len)); } +AsyncWebSocket::SendStatus AsyncWebSocket::textAll(const char* message, size_t len) { + return textAll((const uint8_t*)message, len); +} +AsyncWebSocket::SendStatus AsyncWebSocket::textAll(const char* message) { + return textAll(message, strlen(message)); +} +AsyncWebSocket::SendStatus AsyncWebSocket::textAll(const String& message) { + return textAll(message.c_str(), message.length()); +} +#ifdef ESP8266 +AsyncWebSocket::SendStatus AsyncWebSocket::textAll(const __FlashStringHelper* data) { + PGM_P p = reinterpret_cast(data); -void AsyncWebSocket::textAll(AsyncWebSocketMessageBuffer * buffer){ - if (!buffer) return; - buffer->lock(); - for(const auto& c: _clients){ - if(c->status() == WS_CONNECTED){ - c->text(buffer); - } + size_t n = 0; + while (1) { + if (pgm_read_byte(p + n) == 0) + break; + n += 1; } - buffer->unlock(); - _cleanBuffers(); -} + char* message = (char*)malloc(n + 1); + AsyncWebSocket::SendStatus status = DISCARDED; + if (message) { + memcpy_P(message, p, n); + message[n] = 0; + status = textAll(message, n); + free(message); + } + return status; +} +#endif // ESP8266 +AsyncWebSocket::SendStatus AsyncWebSocket::textAll(AsyncWebSocketMessageBuffer* buffer) { + AsyncWebSocket::SendStatus status = DISCARDED; + if (buffer) { + status = textAll(std::move(buffer->_buffer)); + delete buffer; + } + return status; +} -void AsyncWebSocket::textAll(const char * message, size_t len){ - AsyncWebSocketMessageBuffer * WSBuffer = makeBuffer((uint8_t *)message, len); - textAll(WSBuffer); +AsyncWebSocket::SendStatus AsyncWebSocket::textAll(AsyncWebSocketSharedBuffer buffer) { + size_t hit = 0; + size_t miss = 0; + for (auto& c : _clients) + if (c.status() == WS_CONNECTED && c.text(buffer)) + hit++; + else + miss++; + return hit == 0 ? DISCARDED : (miss == 0 ? ENQUEUED : PARTIALLY_ENQUEUED); } -void AsyncWebSocket::binary(uint32_t id, const char * message, size_t len){ - AsyncWebSocketClient * c = client(id); - if(c) - c->binary(message, len); +bool AsyncWebSocket::binary(uint32_t id, const uint8_t* message, size_t len) { + AsyncWebSocketClient* c = client(id); + return c && c->binary(makeSharedBuffer(message, len)); +} +bool AsyncWebSocket::binary(uint32_t id, const char* message, size_t len) { + return binary(id, (const uint8_t*)message, len); +} +bool AsyncWebSocket::binary(uint32_t id, const char* message) { + return binary(id, message, strlen(message)); +} +bool AsyncWebSocket::binary(uint32_t id, const String& message) { + return binary(id, message.c_str(), message.length()); } -void AsyncWebSocket::binaryAll(const char * message, size_t len){ - AsyncWebSocketMessageBuffer * buffer = makeBuffer((uint8_t *)message, len); - binaryAll(buffer); +#ifdef ESP8266 +bool AsyncWebSocket::binary(uint32_t id, const __FlashStringHelper* data, size_t len) { + PGM_P p = reinterpret_cast(data); + char* message = (char*)malloc(len); + bool enqueued = false; + if (message) { + memcpy_P(message, p, len); + enqueued = binary(id, message, len); + free(message); + } + return enqueued; } +#endif // ESP8266 -void AsyncWebSocket::binaryAll(AsyncWebSocketMessageBuffer * buffer) -{ - if (!buffer) return; - buffer->lock(); - for(const auto& c: _clients){ - if(c->status() == WS_CONNECTED) - c->binary(buffer); +bool AsyncWebSocket::binary(uint32_t id, AsyncWebSocketMessageBuffer* buffer) { + bool enqueued = false; + if (buffer) { + enqueued = binary(id, std::move(buffer->_buffer)); + delete buffer; } - buffer->unlock(); - _cleanBuffers(); + return enqueued; +} +bool AsyncWebSocket::binary(uint32_t id, AsyncWebSocketSharedBuffer buffer) { + AsyncWebSocketClient* c = client(id); + return c && c->binary(buffer); } -void AsyncWebSocket::message(uint32_t id, AsyncWebSocketMessage *message){ - AsyncWebSocketClient * c = client(id); - if(c) - c->message(message); +AsyncWebSocket::SendStatus AsyncWebSocket::binaryAll(const uint8_t* message, size_t len) { + return binaryAll(makeSharedBuffer(message, len)); +} +AsyncWebSocket::SendStatus AsyncWebSocket::binaryAll(const char* message, size_t len) { + return binaryAll((const uint8_t*)message, len); +} +AsyncWebSocket::SendStatus AsyncWebSocket::binaryAll(const char* message) { + return binaryAll(message, strlen(message)); +} +AsyncWebSocket::SendStatus AsyncWebSocket::binaryAll(const String& message) { + return binaryAll(message.c_str(), message.length()); } -void AsyncWebSocket::messageAll(AsyncWebSocketMultiMessage *message){ - for(const auto& c: _clients){ - if(c->status() == WS_CONNECTED) - c->message(message); +#ifdef ESP8266 +AsyncWebSocket::SendStatus AsyncWebSocket::binaryAll(const __FlashStringHelper* data, size_t len) { + PGM_P p = reinterpret_cast(data); + char* message = (char*)malloc(len); + AsyncWebSocket::SendStatus status = DISCARDED; + if (message) { + memcpy_P(message, p, len); + status = binaryAll(message, len); + free(message); } - _cleanBuffers(); + return status; } +#endif // ESP8266 -size_t AsyncWebSocket::printf(uint32_t id, const char *format, ...){ - AsyncWebSocketClient * c = client(id); - if(c){ +AsyncWebSocket::SendStatus AsyncWebSocket::binaryAll(AsyncWebSocketMessageBuffer* buffer) { + AsyncWebSocket::SendStatus status = DISCARDED; + if (buffer) { + status = binaryAll(std::move(buffer->_buffer)); + delete buffer; + } + return status; +} +AsyncWebSocket::SendStatus AsyncWebSocket::binaryAll(AsyncWebSocketSharedBuffer buffer) { + size_t hit = 0; + size_t miss = 0; + for (auto& c : _clients) + if (c.status() == WS_CONNECTED && c.binary(buffer)) + hit++; + else + miss++; + return hit == 0 ? DISCARDED : (miss == 0 ? ENQUEUED : PARTIALLY_ENQUEUED); +} + +size_t AsyncWebSocket::printf(uint32_t id, const char* format, ...) { + AsyncWebSocketClient* c = client(id); + if (c) { va_list arg; va_start(arg, format); size_t len = c->printf(format, arg); @@ -1010,34 +1049,33 @@ size_t AsyncWebSocket::printf(uint32_t id, const char *format, ...){ return 0; } -size_t AsyncWebSocket::printfAll(const char *format, ...) { +size_t AsyncWebSocket::printfAll(const char* format, ...) { va_list arg; - char* temp = new char[MAX_PRINTF_LEN]; - if(!temp){ - return 0; - } va_start(arg, format); - size_t len = vsnprintf(temp, MAX_PRINTF_LEN, format, arg); + size_t len = vsnprintf(nullptr, 0, format, arg); va_end(arg); - delete[] temp; - - AsyncWebSocketMessageBuffer * buffer = makeBuffer(len); - if (!buffer) { + + if (len == 0) + return 0; + + char* buffer = new char[len + 1]; + + if (!buffer) return 0; - } va_start(arg, format); - vsnprintf( (char *)buffer->get(), len + 1, format, arg); + len = vsnprintf(buffer, len + 1, format, arg); va_end(arg); - textAll(buffer); - return len; + AsyncWebSocket::SendStatus status = textAll(buffer, len); + delete[] buffer; + return status == DISCARDED ? 0 : len; } -#ifndef ESP32 -size_t AsyncWebSocket::printf_P(uint32_t id, PGM_P formatP, ...){ - AsyncWebSocketClient * c = client(id); - if(c != NULL){ +#ifdef ESP8266 +size_t AsyncWebSocket::printf_P(uint32_t id, PGM_P formatP, ...) { + AsyncWebSocketClient* c = client(id); + if (c != NULL) { va_list arg; va_start(arg, formatP); size_t len = c->printf_P(formatP, arg); @@ -1046,237 +1084,156 @@ size_t AsyncWebSocket::printf_P(uint32_t id, PGM_P formatP, ...){ } return 0; } -#endif size_t AsyncWebSocket::printfAll_P(PGM_P formatP, ...) { va_list arg; - char* temp = new char[MAX_PRINTF_LEN]; - if(!temp){ - return 0; - } va_start(arg, formatP); - size_t len = vsnprintf_P(temp, MAX_PRINTF_LEN, formatP, arg); + size_t len = vsnprintf_P(nullptr, 0, formatP, arg); va_end(arg); - delete[] temp; - - AsyncWebSocketMessageBuffer * buffer = makeBuffer(len + 1); - if (!buffer) { + + if (len == 0) return 0; - } - va_start(arg, formatP); - vsnprintf_P((char *)buffer->get(), len + 1, formatP, arg); - va_end(arg); + char* buffer = new char[len + 1]; - textAll(buffer); - return len; -} + if (!buffer) + return 0; -void AsyncWebSocket::text(uint32_t id, const char * message){ - text(id, message, strlen(message)); -} -void AsyncWebSocket::text(uint32_t id, uint8_t * message, size_t len){ - text(id, (const char *)message, len); -} -void AsyncWebSocket::text(uint32_t id, char * message){ - text(id, message, strlen(message)); -} -void AsyncWebSocket::text(uint32_t id, const String &message){ - text(id, message.c_str(), message.length()); -} -void AsyncWebSocket::text(uint32_t id, const __FlashStringHelper *message){ - AsyncWebSocketClient * c = client(id); - if(c != NULL) - c->text(message); -} -void AsyncWebSocket::textAll(const char * message){ - textAll(message, strlen(message)); -} -void AsyncWebSocket::textAll(uint8_t * message, size_t len){ - textAll((const char *)message, len); -} -void AsyncWebSocket::textAll(char * message){ - textAll(message, strlen(message)); -} -void AsyncWebSocket::textAll(const String &message){ - textAll(message.c_str(), message.length()); -} -void AsyncWebSocket::textAll(const __FlashStringHelper *message){ - for(const auto& c: _clients){ - if(c->status() == WS_CONNECTED) - c->text(message); - } -} -void AsyncWebSocket::binary(uint32_t id, const char * message){ - binary(id, message, strlen(message)); -} -void AsyncWebSocket::binary(uint32_t id, uint8_t * message, size_t len){ - binary(id, (const char *)message, len); -} -void AsyncWebSocket::binary(uint32_t id, char * message){ - binary(id, message, strlen(message)); -} -void AsyncWebSocket::binary(uint32_t id, const String &message){ - binary(id, message.c_str(), message.length()); -} -void AsyncWebSocket::binary(uint32_t id, const __FlashStringHelper *message, size_t len){ - AsyncWebSocketClient * c = client(id); - if(c != NULL) - c-> binary(message, len); -} -void AsyncWebSocket::binaryAll(const char * message){ - binaryAll(message, strlen(message)); -} -void AsyncWebSocket::binaryAll(uint8_t * message, size_t len){ - binaryAll((const char *)message, len); -} -void AsyncWebSocket::binaryAll(char * message){ - binaryAll(message, strlen(message)); -} -void AsyncWebSocket::binaryAll(const String &message){ - binaryAll(message.c_str(), message.length()); -} -void AsyncWebSocket::binaryAll(const __FlashStringHelper *message, size_t len){ - for(const auto& c: _clients){ - if(c->status() == WS_CONNECTED) - c-> binary(message, len); - } - } - -const char * WS_STR_CONNECTION = "Connection"; -const char * WS_STR_UPGRADE = "Upgrade"; -const char * WS_STR_ORIGIN = "Origin"; -const char * WS_STR_VERSION = "Sec-WebSocket-Version"; -const char * WS_STR_KEY = "Sec-WebSocket-Key"; -const char * WS_STR_PROTOCOL = "Sec-WebSocket-Protocol"; -const char * WS_STR_ACCEPT = "Sec-WebSocket-Accept"; -const char * WS_STR_UUID = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"; - -bool AsyncWebSocket::canHandle(AsyncWebServerRequest *request){ - if(!_enabled) - return false; - - if(request->method() != HTTP_GET || !request->url().equals(_url) || !request->isExpectedRequestedConnType(RCT_WS)) - return false; + va_start(arg, formatP); + len = vsnprintf_P(buffer, len + 1, formatP, arg); + va_end(arg); - request->addInterestingHeader(WS_STR_CONNECTION); - request->addInterestingHeader(WS_STR_UPGRADE); - request->addInterestingHeader(WS_STR_ORIGIN); - request->addInterestingHeader(WS_STR_VERSION); - request->addInterestingHeader(WS_STR_KEY); - request->addInterestingHeader(WS_STR_PROTOCOL); - return true; + AsyncWebSocket::SendStatus status = textAll(buffer, len); + delete[] buffer; + return status == DISCARDED ? 0 : len; } +#endif -void AsyncWebSocket::handleRequest(AsyncWebServerRequest *request){ - if(!request->hasHeader(WS_STR_VERSION) || !request->hasHeader(WS_STR_KEY)){ +const char __WS_STR_CONNECTION[] PROGMEM = {"Connection"}; +const char __WS_STR_UPGRADE[] PROGMEM = {"Upgrade"}; +const char __WS_STR_ORIGIN[] PROGMEM = {"Origin"}; +const char __WS_STR_COOKIE[] PROGMEM = {"Cookie"}; +const char __WS_STR_VERSION[] PROGMEM = {"Sec-WebSocket-Version"}; +const char __WS_STR_KEY[] PROGMEM = {"Sec-WebSocket-Key"}; +const char __WS_STR_PROTOCOL[] PROGMEM = {"Sec-WebSocket-Protocol"}; +const char __WS_STR_ACCEPT[] PROGMEM = {"Sec-WebSocket-Accept"}; +const char __WS_STR_UUID[] PROGMEM = {"258EAFA5-E914-47DA-95CA-C5AB0DC85B11"}; + +#define WS_STR_UUID_LEN 36 + +#define WS_STR_CONNECTION FPSTR(__WS_STR_CONNECTION) +#define WS_STR_UPGRADE FPSTR(__WS_STR_UPGRADE) +#define WS_STR_ORIGIN FPSTR(__WS_STR_ORIGIN) +#define WS_STR_COOKIE FPSTR(__WS_STR_COOKIE) +#define WS_STR_VERSION FPSTR(__WS_STR_VERSION) +#define WS_STR_KEY FPSTR(__WS_STR_KEY) +#define WS_STR_PROTOCOL FPSTR(__WS_STR_PROTOCOL) +#define WS_STR_ACCEPT FPSTR(__WS_STR_ACCEPT) +#define WS_STR_UUID FPSTR(__WS_STR_UUID) + +bool AsyncWebSocket::canHandle(AsyncWebServerRequest* request) const { + return _enabled && request->isWebSocketUpgrade() && request->url().equals(_url); +} + +void AsyncWebSocket::handleRequest(AsyncWebServerRequest* request) { + if (!request->hasHeader(WS_STR_VERSION) || !request->hasHeader(WS_STR_KEY)) { request->send(400); return; } - if((_username != "" && _password != "") && !request->authenticate(_username.c_str(), _password.c_str())){ - return request->requestAuthentication(); + if (_handshakeHandler != nullptr) { + if (!_handshakeHandler(request)) { + request->send(401); + return; + } } - AsyncWebHeader* version = request->getHeader(WS_STR_VERSION); - if(version->value().toInt() != 13){ - AsyncWebServerResponse *response = request->beginResponse(400); - response->addHeader(WS_STR_VERSION,"13"); + const AsyncWebHeader* version = request->getHeader(WS_STR_VERSION); + if (version->value().toInt() != 13) { + AsyncWebServerResponse* response = request->beginResponse(400); + response->addHeader(WS_STR_VERSION, T_13); request->send(response); return; } - AsyncWebHeader* key = request->getHeader(WS_STR_KEY); - AsyncWebServerResponse *response = new AsyncWebSocketResponse(key->value(), this); - if(request->hasHeader(WS_STR_PROTOCOL)){ - AsyncWebHeader* protocol = request->getHeader(WS_STR_PROTOCOL); - //ToDo: check protocol + const AsyncWebHeader* key = request->getHeader(WS_STR_KEY); + AsyncWebServerResponse* response = new AsyncWebSocketResponse(key->value(), this); + if (request->hasHeader(WS_STR_PROTOCOL)) { + const AsyncWebHeader* protocol = request->getHeader(WS_STR_PROTOCOL); + // ToDo: check protocol response->addHeader(WS_STR_PROTOCOL, protocol->value()); } request->send(response); } -AsyncWebSocketMessageBuffer * AsyncWebSocket::makeBuffer(size_t size) -{ - AsyncWebSocketMessageBuffer * buffer = new AsyncWebSocketMessageBuffer(size); - if (buffer) { - _buffers.add(buffer); - } - return buffer; -} - -AsyncWebSocketMessageBuffer * AsyncWebSocket::makeBuffer(uint8_t * data, size_t size) -{ - AsyncWebSocketMessageBuffer * buffer = new AsyncWebSocketMessageBuffer(data, size); - - if (buffer) { - _buffers.add(buffer); +AsyncWebSocketMessageBuffer* AsyncWebSocket::makeBuffer(size_t size) { + AsyncWebSocketMessageBuffer* buffer = new AsyncWebSocketMessageBuffer(size); + if (buffer->length() != size) { + delete buffer; + return nullptr; + } else { + return buffer; } - - return buffer; } -void AsyncWebSocket::_cleanBuffers() -{ - for(AsyncWebSocketMessageBuffer * c: _buffers){ - if(c && c->canDelete()){ - _buffers.remove(c); - } +AsyncWebSocketMessageBuffer* AsyncWebSocket::makeBuffer(const uint8_t* data, size_t size) { + AsyncWebSocketMessageBuffer* buffer = new AsyncWebSocketMessageBuffer(data, size); + if (buffer->length() != size) { + delete buffer; + return nullptr; + } else { + return buffer; } } - /* * Response to Web Socket request - sends the authorization and detaches the TCP Client from the web server * Authentication code from https://github.com/Links2004/arduinoWebSockets/blob/master/src/WebSockets.cpp#L480 */ -AsyncWebSocketResponse::AsyncWebSocketResponse(const String& key, AsyncWebSocket *server){ +AsyncWebSocketResponse::AsyncWebSocketResponse(const String& key, AsyncWebSocket* server) { _server = server; _code = 101; _sendContentLength = false; - uint8_t * hash = (uint8_t*)malloc(20); - if(hash == NULL){ - _state = RESPONSE_FAILED; - return; - } - char * buffer = (char *) malloc(33); - if(buffer == NULL){ - free(hash); - _state = RESPONSE_FAILED; - return; - } -#ifdef ESP8266 + uint8_t hash[20]; + char buffer[33]; + +#if defined(ESP8266) || defined(TARGET_RP2040) sha1(key + WS_STR_UUID, hash); #else - (String&)key += WS_STR_UUID; - SHA1_CTX ctx; - SHA1Init(&ctx); - SHA1Update(&ctx, (const unsigned char*)key.c_str(), key.length()); - SHA1Final(hash, &ctx); + String k; + k.reserve(key.length() + WS_STR_UUID_LEN); + k.concat(key); + k.concat(WS_STR_UUID); + SHA1Builder sha1; + sha1.begin(); + sha1.add((const uint8_t*)k.c_str(), k.length()); + sha1.calculate(); + sha1.getBytes(hash); #endif base64_encodestate _state; base64_init_encodestate(&_state); - int len = base64_encode_block((const char *) hash, 20, buffer, &_state); + int len = base64_encode_block((const char*)hash, 20, buffer, &_state); len = base64_encode_blockend((buffer + len), &_state); addHeader(WS_STR_CONNECTION, WS_STR_UPGRADE); - addHeader(WS_STR_UPGRADE, "websocket"); - addHeader(WS_STR_ACCEPT,buffer); - free(buffer); - free(hash); + addHeader(WS_STR_UPGRADE, T_WS); + addHeader(WS_STR_ACCEPT, buffer); } -void AsyncWebSocketResponse::_respond(AsyncWebServerRequest *request){ - if(_state == RESPONSE_FAILED){ +void AsyncWebSocketResponse::_respond(AsyncWebServerRequest* request) { + if (_state == RESPONSE_FAILED) { request->client()->close(true); return; } - String out = _assembleHead(request->version()); + String out; + _assembleHead(out, request->version()); request->client()->write(out.c_str(), _headLength); _state = RESPONSE_WAIT_ACK; } -size_t AsyncWebSocketResponse::_ack(AsyncWebServerRequest *request, size_t len, uint32_t time){ - if(len){ - new AsyncWebSocketClient(request, _server); - } +size_t AsyncWebSocketResponse::_ack(AsyncWebServerRequest* request, size_t len, uint32_t time) { + (void)time; + + if (len) + _server->_newClient(request); + return 0; } diff --git a/src/AsyncWebSocket.h b/src/AsyncWebSocket.h index 2a47a0d83..671c8664f 100644 --- a/src/AsyncWebSocket.h +++ b/src/AsyncWebSocket.h @@ -23,18 +23,44 @@ #include #ifdef ESP32 -#include -#define WS_MAX_QUEUED_MESSAGES 32 -#else -#include -#define WS_MAX_QUEUED_MESSAGES 8 + #include + #include + #ifndef WS_MAX_QUEUED_MESSAGES + #define WS_MAX_QUEUED_MESSAGES 32 + #endif +#elif defined(ESP8266) + #include + #ifndef WS_MAX_QUEUED_MESSAGES + #define WS_MAX_QUEUED_MESSAGES 8 + #endif +#elif defined(TARGET_RP2040) + #include + #ifndef WS_MAX_QUEUED_MESSAGES + #define WS_MAX_QUEUED_MESSAGES 32 + #endif #endif + #include +#include + #ifdef ESP8266 -#include + #include + #ifdef CRYPTO_HASH_h // include Hash.h from espressif framework if the first include was from the crypto library + #include <../src/Hash.h> + #endif #endif +#ifndef DEFAULT_MAX_WS_CLIENTS + #ifdef ESP32 + #define DEFAULT_MAX_WS_CLIENTS 8 + #else + #define DEFAULT_MAX_WS_CLIENTS 4 + #endif +#endif + +using AsyncWebSocketSharedBuffer = std::shared_ptr>; + class AsyncWebSocket; class AsyncWebSocketResponse; class AsyncWebSocketClient; @@ -64,94 +90,74 @@ typedef struct { uint64_t index; } AwsFrameInfo; -typedef enum { WS_DISCONNECTED, WS_CONNECTED, WS_DISCONNECTING } AwsClientStatus; -typedef enum { WS_CONTINUATION, WS_TEXT, WS_BINARY, WS_DISCONNECT = 0x08, WS_PING, WS_PONG } AwsFrameType; -typedef enum { WS_MSG_SENDING, WS_MSG_SENT, WS_MSG_ERROR } AwsMessageStatus; -typedef enum { WS_EVT_CONNECT, WS_EVT_DISCONNECT, WS_EVT_PONG, WS_EVT_ERROR, WS_EVT_DATA } AwsEventType; +typedef enum { WS_DISCONNECTED, + WS_CONNECTED, + WS_DISCONNECTING } AwsClientStatus; +typedef enum { WS_CONTINUATION, + WS_TEXT, + WS_BINARY, + WS_DISCONNECT = 0x08, + WS_PING, + WS_PONG } AwsFrameType; +typedef enum { WS_MSG_SENDING, + WS_MSG_SENT, + WS_MSG_ERROR } AwsMessageStatus; +typedef enum { WS_EVT_CONNECT, + WS_EVT_DISCONNECT, + WS_EVT_PING, + WS_EVT_PONG, + WS_EVT_ERROR, + WS_EVT_DATA } AwsEventType; class AsyncWebSocketMessageBuffer { + friend AsyncWebSocket; + friend AsyncWebSocketClient; + private: - uint8_t * _data; - size_t _len; - bool _lock; - uint32_t _count; + AsyncWebSocketSharedBuffer _buffer; public: - AsyncWebSocketMessageBuffer(); - AsyncWebSocketMessageBuffer(size_t size); - AsyncWebSocketMessageBuffer(uint8_t * data, size_t size); - AsyncWebSocketMessageBuffer(const AsyncWebSocketMessageBuffer &); - AsyncWebSocketMessageBuffer(AsyncWebSocketMessageBuffer &&); - ~AsyncWebSocketMessageBuffer(); - void operator ++(int i) { _count++; } - void operator --(int i) { if (_count > 0) { _count--; } ; } + AsyncWebSocketMessageBuffer() {} + explicit AsyncWebSocketMessageBuffer(size_t size); + AsyncWebSocketMessageBuffer(const uint8_t* data, size_t size); + //~AsyncWebSocketMessageBuffer(); bool reserve(size_t size); - void lock() { _lock = true; } - void unlock() { _lock = false; } - uint8_t * get() { return _data; } - size_t length() { return _len; } - uint32_t count() { return _count; } - bool canDelete() { return (!_count && !_lock); } - - friend AsyncWebSocket; - + uint8_t* get() { return _buffer->data(); } + size_t length() const { return _buffer->size(); } }; class AsyncWebSocketMessage { - protected: - uint8_t _opcode; - bool _mask; - AwsMessageStatus _status; + private: + AsyncWebSocketSharedBuffer _WSbuffer; + uint8_t _opcode{WS_TEXT}; + bool _mask{false}; + AwsMessageStatus _status{WS_MSG_ERROR}; + size_t _sent{}; + size_t _ack{}; + size_t _acked{}; + public: - AsyncWebSocketMessage():_opcode(WS_TEXT),_mask(false),_status(WS_MSG_ERROR){} - virtual ~AsyncWebSocketMessage(){} - virtual void ack(size_t len __attribute__((unused)), uint32_t time __attribute__((unused))){} - virtual size_t send(AsyncClient *client __attribute__((unused))){ return 0; } - virtual bool finished(){ return _status != WS_MSG_SENDING; } - virtual bool betweenFrames() const { return false; } -}; + AsyncWebSocketMessage(AsyncWebSocketSharedBuffer buffer, uint8_t opcode = WS_TEXT, bool mask = false); -class AsyncWebSocketBasicMessage: public AsyncWebSocketMessage { - private: - size_t _len; - size_t _sent; - size_t _ack; - size_t _acked; - uint8_t * _data; -public: - AsyncWebSocketBasicMessage(const char * data, size_t len, uint8_t opcode=WS_TEXT, bool mask=false); - AsyncWebSocketBasicMessage(uint8_t opcode=WS_TEXT, bool mask=false); - virtual ~AsyncWebSocketBasicMessage() override; - virtual bool betweenFrames() const override { return _acked == _ack; } - virtual void ack(size_t len, uint32_t time) override ; - virtual size_t send(AsyncClient *client) override ; -}; + bool finished() const { return _status != WS_MSG_SENDING; } + bool betweenFrames() const { return _acked == _ack; } -class AsyncWebSocketMultiMessage: public AsyncWebSocketMessage { - private: - uint8_t * _data; - size_t _len; - size_t _sent; - size_t _ack; - size_t _acked; - AsyncWebSocketMessageBuffer * _WSbuffer; -public: - AsyncWebSocketMultiMessage(AsyncWebSocketMessageBuffer * buffer, uint8_t opcode=WS_TEXT, bool mask=false); - virtual ~AsyncWebSocketMultiMessage() override; - virtual bool betweenFrames() const override { return _acked == _ack; } - virtual void ack(size_t len, uint32_t time) override ; - virtual size_t send(AsyncClient *client) override ; + void ack(size_t len, uint32_t time); + size_t send(AsyncClient* client); }; class AsyncWebSocketClient { private: - AsyncClient *_client; - AsyncWebSocket *_server; + AsyncClient* _client; + AsyncWebSocket* _server; uint32_t _clientId; AwsClientStatus _status; - - LinkedList _controlQueue; - LinkedList _messageQueue; +#ifdef ESP32 + mutable std::mutex _lock; +#endif + std::deque _controlQueue; + std::deque _messageQueue; + bool closeWhenFull = true; uint8_t _pstate; AwsFrameInfo _pinfo; @@ -159,174 +165,213 @@ class AsyncWebSocketClient { uint32_t _lastMessageTime; uint32_t _keepAlivePeriod; - void _queueMessage(AsyncWebSocketMessage *dataMessage); - void _queueControl(AsyncWebSocketControl *controlMessage); + bool _queueControl(uint8_t opcode, const uint8_t* data = NULL, size_t len = 0, bool mask = false); + bool _queueMessage(AsyncWebSocketSharedBuffer buffer, uint8_t opcode = WS_TEXT, bool mask = false); void _runQueue(); + void _clearQueue(); public: - void *_tempObject; + void* _tempObject; - AsyncWebSocketClient(AsyncWebServerRequest *request, AsyncWebSocket *server); + AsyncWebSocketClient(AsyncWebServerRequest* request, AsyncWebSocket* server); ~AsyncWebSocketClient(); - //client id increments for the given server - uint32_t id(){ return _clientId; } - AwsClientStatus status(){ return _status; } - AsyncClient* client(){ return _client; } - AsyncWebSocket *server(){ return _server; } - AwsFrameInfo const &pinfo() const { return _pinfo; } - - IPAddress remoteIP(); - uint16_t remotePort(); - - //control frames - void close(uint16_t code=0, const char * message=NULL); - void ping(uint8_t *data=NULL, size_t len=0); - - //set auto-ping period in seconds. disabled if zero (default) - void keepAlivePeriod(uint16_t seconds){ + // client id increments for the given server + uint32_t id() const { return _clientId; } + AwsClientStatus status() const { return _status; } + AsyncClient* client() { return _client; } + const AsyncClient* client() const { return _client; } + AsyncWebSocket* server() { return _server; } + const AsyncWebSocket* server() const { return _server; } + AwsFrameInfo const& pinfo() const { return _pinfo; } + + // - If "true" (default), the connection will be closed if the message queue is full. + // This is the default behavior in yubox-node-org, which is not silently discarding messages but instead closes the connection. + // The big issue with this behavior is that is can cause the UI to automatically re-create a new WS connection, which can be filled again, + // and so on, causing a resource exhaustion. + // + // - If "false", the incoming message will be discarded if the queue is full. + // This is the default behavior in the original ESPAsyncWebServer library from me-no-dev. + // This behavior allows the best performance at the expense of unreliable message delivery in case the queue is full (some messages may be lost). + // + // - In any case, when the queue is full, a message is logged. + // - IT is recommended to use the methods queueIsFull(), availableForWriteAll(), availableForWrite(clientId) to check if the queue is full before sending a message. + // + // Usage: + // - can be set in the onEvent listener when connecting (event type is: WS_EVT_CONNECT) + // + // Use cases:, + // - if using websocket to send logging messages, maybe some loss is acceptable. + // - But if using websocket to send UI update messages, maybe the connection should be closed and the UI redrawn. + void setCloseClientOnQueueFull(bool close) { closeWhenFull = close; } + bool willCloseClientOnQueueFull() const { return closeWhenFull; } + + IPAddress remoteIP() const; + uint16_t remotePort() const; + + bool shouldBeDeleted() const { return !_client; } + + // control frames + void close(uint16_t code = 0, const char* message = NULL); + bool ping(const uint8_t* data = NULL, size_t len = 0); + + // set auto-ping period in seconds. disabled if zero (default) + void keepAlivePeriod(uint16_t seconds) { _keepAlivePeriod = seconds * 1000; } - uint16_t keepAlivePeriod(){ + uint16_t keepAlivePeriod() { return (uint16_t)(_keepAlivePeriod / 1000); } - //data packets - void message(AsyncWebSocketMessage *message){ _queueMessage(message); } - bool queueIsFull(); + // data packets + void message(AsyncWebSocketSharedBuffer buffer, uint8_t opcode = WS_TEXT, bool mask = false) { _queueMessage(buffer, opcode, mask); } + bool queueIsFull() const; + size_t queueLen() const; - size_t printf(const char *format, ...) __attribute__ ((format (printf, 2, 3))); -#ifndef ESP32 - size_t printf_P(PGM_P formatP, ...) __attribute__ ((format (printf, 2, 3))); -#endif - void text(const char * message, size_t len); - void text(const char * message); - void text(uint8_t * message, size_t len); - void text(char * message); - void text(const String &message); - void text(const __FlashStringHelper *data); - void text(AsyncWebSocketMessageBuffer *buffer); - - void binary(const char * message, size_t len); - void binary(const char * message); - void binary(uint8_t * message, size_t len); - void binary(char * message); - void binary(const String &message); - void binary(const __FlashStringHelper *data, size_t len); - void binary(AsyncWebSocketMessageBuffer *buffer); - - bool canSend() { return _messageQueue.length() < WS_MAX_QUEUED_MESSAGES; } - - //system callbacks (do not call) + size_t printf(const char* format, ...) __attribute__((format(printf, 2, 3))); + + bool text(AsyncWebSocketSharedBuffer buffer); + bool text(const uint8_t* message, size_t len); + bool text(const char* message, size_t len); + bool text(const char* message); + bool text(const String& message); + bool text(AsyncWebSocketMessageBuffer* buffer); + + bool binary(AsyncWebSocketSharedBuffer buffer); + bool binary(const uint8_t* message, size_t len); + bool binary(const char* message, size_t len); + bool binary(const char* message); + bool binary(const String& message); + bool binary(AsyncWebSocketMessageBuffer* buffer); + + bool canSend() const; + + // system callbacks (do not call) void _onAck(size_t len, uint32_t time); void _onError(int8_t); void _onPoll(); void _onTimeout(uint32_t time); void _onDisconnect(); - void _onData(void *pbuf, size_t plen); + void _onData(void* pbuf, size_t plen); + +#ifdef ESP8266 + size_t printf_P(PGM_P formatP, ...) __attribute__((format(printf, 2, 3))); + bool text(const __FlashStringHelper* message); + bool binary(const __FlashStringHelper* message, size_t len); +#endif }; -typedef std::function AwsEventHandler; +using AwsHandshakeHandler = std::function; +using AwsEventHandler = std::function; -//WebServer Handler implementation that plays the role of a socket server -class AsyncWebSocket: public AsyncWebHandler { +// WebServer Handler implementation that plays the role of a socket server +class AsyncWebSocket : public AsyncWebHandler { private: String _url; - LinkedList _clients; + std::list _clients; uint32_t _cNextId; - AwsEventHandler _eventHandler; + AwsEventHandler _eventHandler{nullptr}; + AwsHandshakeHandler _handshakeHandler; bool _enabled; +#ifdef ESP32 + mutable std::mutex _lock; +#endif + public: - AsyncWebSocket(const String& url); - ~AsyncWebSocket(); - const char * url() const { return _url.c_str(); } - void enable(bool e){ _enabled = e; } + typedef enum { + DISCARDED = 0, + ENQUEUED = 1, + PARTIALLY_ENQUEUED = 2, + } SendStatus; + + explicit AsyncWebSocket(const char* url) : _url(url), _cNextId(1), _enabled(true) {} + AsyncWebSocket(const String& url) : _url(url), _cNextId(1), _enabled(true) {} + ~AsyncWebSocket() {}; + const char* url() const { return _url.c_str(); } + void enable(bool e) { _enabled = e; } bool enabled() const { return _enabled; } bool availableForWriteAll(); bool availableForWrite(uint32_t id); size_t count() const; - AsyncWebSocketClient * client(uint32_t id); - bool hasClient(uint32_t id){ return client(id) != NULL; } - - void close(uint32_t id, uint16_t code=0, const char * message=NULL); - void closeAll(uint16_t code=0, const char * message=NULL); - - void ping(uint32_t id, uint8_t *data=NULL, size_t len=0); - void pingAll(uint8_t *data=NULL, size_t len=0); // done - - void text(uint32_t id, const char * message, size_t len); - void text(uint32_t id, const char * message); - void text(uint32_t id, uint8_t * message, size_t len); - void text(uint32_t id, char * message); - void text(uint32_t id, const String &message); - void text(uint32_t id, const __FlashStringHelper *message); - - void textAll(const char * message, size_t len); - void textAll(const char * message); - void textAll(uint8_t * message, size_t len); - void textAll(char * message); - void textAll(const String &message); - void textAll(const __FlashStringHelper *message); // need to convert - void textAll(AsyncWebSocketMessageBuffer * buffer); - - void binary(uint32_t id, const char * message, size_t len); - void binary(uint32_t id, const char * message); - void binary(uint32_t id, uint8_t * message, size_t len); - void binary(uint32_t id, char * message); - void binary(uint32_t id, const String &message); - void binary(uint32_t id, const __FlashStringHelper *message, size_t len); - - void binaryAll(const char * message, size_t len); - void binaryAll(const char * message); - void binaryAll(uint8_t * message, size_t len); - void binaryAll(char * message); - void binaryAll(const String &message); - void binaryAll(const __FlashStringHelper *message, size_t len); - void binaryAll(AsyncWebSocketMessageBuffer * buffer); - - void message(uint32_t id, AsyncWebSocketMessage *message); - void messageAll(AsyncWebSocketMultiMessage *message); - - size_t printf(uint32_t id, const char *format, ...) __attribute__ ((format (printf, 3, 4))); - size_t printfAll(const char *format, ...) __attribute__ ((format (printf, 2, 3))); -#ifndef ESP32 - size_t printf_P(uint32_t id, PGM_P formatP, ...) __attribute__ ((format (printf, 3, 4))); + AsyncWebSocketClient* client(uint32_t id); + bool hasClient(uint32_t id) { return client(id) != nullptr; } + + void close(uint32_t id, uint16_t code = 0, const char* message = NULL); + void closeAll(uint16_t code = 0, const char* message = NULL); + void cleanupClients(uint16_t maxClients = DEFAULT_MAX_WS_CLIENTS); + + bool ping(uint32_t id, const uint8_t* data = NULL, size_t len = 0); + SendStatus pingAll(const uint8_t* data = NULL, size_t len = 0); // done + + bool text(uint32_t id, const uint8_t* message, size_t len); + bool text(uint32_t id, const char* message, size_t len); + bool text(uint32_t id, const char* message); + bool text(uint32_t id, const String& message); + bool text(uint32_t id, AsyncWebSocketMessageBuffer* buffer); + bool text(uint32_t id, AsyncWebSocketSharedBuffer buffer); + + SendStatus textAll(const uint8_t* message, size_t len); + SendStatus textAll(const char* message, size_t len); + SendStatus textAll(const char* message); + SendStatus textAll(const String& message); + SendStatus textAll(AsyncWebSocketMessageBuffer* buffer); + SendStatus textAll(AsyncWebSocketSharedBuffer buffer); + + bool binary(uint32_t id, const uint8_t* message, size_t len); + bool binary(uint32_t id, const char* message, size_t len); + bool binary(uint32_t id, const char* message); + bool binary(uint32_t id, const String& message); + bool binary(uint32_t id, AsyncWebSocketMessageBuffer* buffer); + bool binary(uint32_t id, AsyncWebSocketSharedBuffer buffer); + + SendStatus binaryAll(const uint8_t* message, size_t len); + SendStatus binaryAll(const char* message, size_t len); + SendStatus binaryAll(const char* message); + SendStatus binaryAll(const String& message); + SendStatus binaryAll(AsyncWebSocketMessageBuffer* buffer); + SendStatus binaryAll(AsyncWebSocketSharedBuffer buffer); + + size_t printf(uint32_t id, const char* format, ...) __attribute__((format(printf, 3, 4))); + size_t printfAll(const char* format, ...) __attribute__((format(printf, 2, 3))); + +#ifdef ESP8266 + bool text(uint32_t id, const __FlashStringHelper* message); + SendStatus textAll(const __FlashStringHelper* message); + bool binary(uint32_t id, const __FlashStringHelper* message, size_t len); + SendStatus binaryAll(const __FlashStringHelper* message, size_t len); + size_t printf_P(uint32_t id, PGM_P formatP, ...) __attribute__((format(printf, 3, 4))); + size_t printfAll_P(PGM_P formatP, ...) __attribute__((format(printf, 2, 3))); #endif - size_t printfAll_P(PGM_P formatP, ...) __attribute__ ((format (printf, 2, 3))); - //event listener - void onEvent(AwsEventHandler handler){ - _eventHandler = handler; - } + void onEvent(AwsEventHandler handler) { _eventHandler = handler; } + void handleHandshake(AwsHandshakeHandler handler) { _handshakeHandler = handler; } - //system callbacks (do not call) - uint32_t _getNextId(){ return _cNextId++; } - void _addClient(AsyncWebSocketClient * client); - void _handleDisconnect(AsyncWebSocketClient * client); - void _handleEvent(AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len); - virtual bool canHandle(AsyncWebServerRequest *request) override final; - virtual void handleRequest(AsyncWebServerRequest *request) override final; + // system callbacks (do not call) + uint32_t _getNextId() { return _cNextId++; } + AsyncWebSocketClient* _newClient(AsyncWebServerRequest* request); + void _handleEvent(AsyncWebSocketClient* client, AwsEventType type, void* arg, uint8_t* data, size_t len); + bool canHandle(AsyncWebServerRequest* request) const override final; + void handleRequest(AsyncWebServerRequest* request) override final; + // messagebuffer functions/objects. + AsyncWebSocketMessageBuffer* makeBuffer(size_t size = 0); + AsyncWebSocketMessageBuffer* makeBuffer(const uint8_t* data, size_t size); - // messagebuffer functions/objects. - AsyncWebSocketMessageBuffer * makeBuffer(size_t size = 0); - AsyncWebSocketMessageBuffer * makeBuffer(uint8_t * data, size_t size); - LinkedList _buffers; - void _cleanBuffers(); + std::list& getClients() { return _clients; } }; -//WebServer response to authenticate the socket and detach the tcp client from the web server request -class AsyncWebSocketResponse: public AsyncWebServerResponse { +// WebServer response to authenticate the socket and detach the tcp client from the web server request +class AsyncWebSocketResponse : public AsyncWebServerResponse { private: String _content; - AsyncWebSocket *_server; + AsyncWebSocket* _server; + public: - AsyncWebSocketResponse(const String& key, AsyncWebSocket *server); - void _respond(AsyncWebServerRequest *request); - size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time); + AsyncWebSocketResponse(const String& key, AsyncWebSocket* server); + void _respond(AsyncWebServerRequest* request); + size_t _ack(AsyncWebServerRequest* request, size_t len, uint32_t time); bool _sourceValid() const { return true; } }; - #endif /* ASYNCWEBSOCKET_H_ */ diff --git a/src/BackPort_SHA1Builder.cpp b/src/BackPort_SHA1Builder.cpp new file mode 100644 index 000000000..08ba32ca2 --- /dev/null +++ b/src/BackPort_SHA1Builder.cpp @@ -0,0 +1,284 @@ +/* + * FIPS-180-1 compliant SHA-1 implementation + * + * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * This file is part of mbed TLS (https://tls.mbed.org) + * Modified for esp32 by Lucas Saavedra Vaz on 11 Jan 2024 + */ + +#include +#if ESP_IDF_VERSION_MAJOR < 5 + +#include "BackPort_SHA1Builder.h" + +// 32-bit integer manipulation macros (big endian) + +#ifndef GET_UINT32_BE +#define GET_UINT32_BE(n, b, i) \ + { (n) = ((uint32_t)(b)[(i)] << 24) | ((uint32_t)(b)[(i) + 1] << 16) | ((uint32_t)(b)[(i) + 2] << 8) | ((uint32_t)(b)[(i) + 3]); } +#endif + +#ifndef PUT_UINT32_BE +#define PUT_UINT32_BE(n, b, i) \ + { \ + (b)[(i)] = (uint8_t)((n) >> 24); \ + (b)[(i) + 1] = (uint8_t)((n) >> 16); \ + (b)[(i) + 2] = (uint8_t)((n) >> 8); \ + (b)[(i) + 3] = (uint8_t)((n)); \ + } +#endif + +// Constants + +static const uint8_t sha1_padding[64] = {0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; + +// Private methods + +void SHA1Builder::process(const uint8_t *data) { + uint32_t temp, W[16], A, B, C, D, E; + + GET_UINT32_BE(W[0], data, 0); + GET_UINT32_BE(W[1], data, 4); + GET_UINT32_BE(W[2], data, 8); + GET_UINT32_BE(W[3], data, 12); + GET_UINT32_BE(W[4], data, 16); + GET_UINT32_BE(W[5], data, 20); + GET_UINT32_BE(W[6], data, 24); + GET_UINT32_BE(W[7], data, 28); + GET_UINT32_BE(W[8], data, 32); + GET_UINT32_BE(W[9], data, 36); + GET_UINT32_BE(W[10], data, 40); + GET_UINT32_BE(W[11], data, 44); + GET_UINT32_BE(W[12], data, 48); + GET_UINT32_BE(W[13], data, 52); + GET_UINT32_BE(W[14], data, 56); + GET_UINT32_BE(W[15], data, 60); + +#define sha1_S(x, n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) + +#define sha1_R(t) (temp = W[(t - 3) & 0x0F] ^ W[(t - 8) & 0x0F] ^ W[(t - 14) & 0x0F] ^ W[t & 0x0F], (W[t & 0x0F] = sha1_S(temp, 1))) + +#define sha1_P(a, b, c, d, e, x) \ + { \ + e += sha1_S(a, 5) + sha1_F(b, c, d) + sha1_K + x; \ + b = sha1_S(b, 30); \ + } + + A = state[0]; + B = state[1]; + C = state[2]; + D = state[3]; + E = state[4]; + +#define sha1_F(x, y, z) (z ^ (x & (y ^ z))) +#define sha1_K 0x5A827999 + + sha1_P(A, B, C, D, E, W[0]); + sha1_P(E, A, B, C, D, W[1]); + sha1_P(D, E, A, B, C, W[2]); + sha1_P(C, D, E, A, B, W[3]); + sha1_P(B, C, D, E, A, W[4]); + sha1_P(A, B, C, D, E, W[5]); + sha1_P(E, A, B, C, D, W[6]); + sha1_P(D, E, A, B, C, W[7]); + sha1_P(C, D, E, A, B, W[8]); + sha1_P(B, C, D, E, A, W[9]); + sha1_P(A, B, C, D, E, W[10]); + sha1_P(E, A, B, C, D, W[11]); + sha1_P(D, E, A, B, C, W[12]); + sha1_P(C, D, E, A, B, W[13]); + sha1_P(B, C, D, E, A, W[14]); + sha1_P(A, B, C, D, E, W[15]); + sha1_P(E, A, B, C, D, sha1_R(16)); + sha1_P(D, E, A, B, C, sha1_R(17)); + sha1_P(C, D, E, A, B, sha1_R(18)); + sha1_P(B, C, D, E, A, sha1_R(19)); + +#undef sha1_K +#undef sha1_F + +#define sha1_F(x, y, z) (x ^ y ^ z) +#define sha1_K 0x6ED9EBA1 + + sha1_P(A, B, C, D, E, sha1_R(20)); + sha1_P(E, A, B, C, D, sha1_R(21)); + sha1_P(D, E, A, B, C, sha1_R(22)); + sha1_P(C, D, E, A, B, sha1_R(23)); + sha1_P(B, C, D, E, A, sha1_R(24)); + sha1_P(A, B, C, D, E, sha1_R(25)); + sha1_P(E, A, B, C, D, sha1_R(26)); + sha1_P(D, E, A, B, C, sha1_R(27)); + sha1_P(C, D, E, A, B, sha1_R(28)); + sha1_P(B, C, D, E, A, sha1_R(29)); + sha1_P(A, B, C, D, E, sha1_R(30)); + sha1_P(E, A, B, C, D, sha1_R(31)); + sha1_P(D, E, A, B, C, sha1_R(32)); + sha1_P(C, D, E, A, B, sha1_R(33)); + sha1_P(B, C, D, E, A, sha1_R(34)); + sha1_P(A, B, C, D, E, sha1_R(35)); + sha1_P(E, A, B, C, D, sha1_R(36)); + sha1_P(D, E, A, B, C, sha1_R(37)); + sha1_P(C, D, E, A, B, sha1_R(38)); + sha1_P(B, C, D, E, A, sha1_R(39)); + +#undef sha1_K +#undef sha1_F + +#define sha1_F(x, y, z) ((x & y) | (z & (x | y))) +#define sha1_K 0x8F1BBCDC + + sha1_P(A, B, C, D, E, sha1_R(40)); + sha1_P(E, A, B, C, D, sha1_R(41)); + sha1_P(D, E, A, B, C, sha1_R(42)); + sha1_P(C, D, E, A, B, sha1_R(43)); + sha1_P(B, C, D, E, A, sha1_R(44)); + sha1_P(A, B, C, D, E, sha1_R(45)); + sha1_P(E, A, B, C, D, sha1_R(46)); + sha1_P(D, E, A, B, C, sha1_R(47)); + sha1_P(C, D, E, A, B, sha1_R(48)); + sha1_P(B, C, D, E, A, sha1_R(49)); + sha1_P(A, B, C, D, E, sha1_R(50)); + sha1_P(E, A, B, C, D, sha1_R(51)); + sha1_P(D, E, A, B, C, sha1_R(52)); + sha1_P(C, D, E, A, B, sha1_R(53)); + sha1_P(B, C, D, E, A, sha1_R(54)); + sha1_P(A, B, C, D, E, sha1_R(55)); + sha1_P(E, A, B, C, D, sha1_R(56)); + sha1_P(D, E, A, B, C, sha1_R(57)); + sha1_P(C, D, E, A, B, sha1_R(58)); + sha1_P(B, C, D, E, A, sha1_R(59)); + +#undef sha1_K +#undef sha1_F + +#define sha1_F(x, y, z) (x ^ y ^ z) +#define sha1_K 0xCA62C1D6 + + sha1_P(A, B, C, D, E, sha1_R(60)); + sha1_P(E, A, B, C, D, sha1_R(61)); + sha1_P(D, E, A, B, C, sha1_R(62)); + sha1_P(C, D, E, A, B, sha1_R(63)); + sha1_P(B, C, D, E, A, sha1_R(64)); + sha1_P(A, B, C, D, E, sha1_R(65)); + sha1_P(E, A, B, C, D, sha1_R(66)); + sha1_P(D, E, A, B, C, sha1_R(67)); + sha1_P(C, D, E, A, B, sha1_R(68)); + sha1_P(B, C, D, E, A, sha1_R(69)); + sha1_P(A, B, C, D, E, sha1_R(70)); + sha1_P(E, A, B, C, D, sha1_R(71)); + sha1_P(D, E, A, B, C, sha1_R(72)); + sha1_P(C, D, E, A, B, sha1_R(73)); + sha1_P(B, C, D, E, A, sha1_R(74)); + sha1_P(A, B, C, D, E, sha1_R(75)); + sha1_P(E, A, B, C, D, sha1_R(76)); + sha1_P(D, E, A, B, C, sha1_R(77)); + sha1_P(C, D, E, A, B, sha1_R(78)); + sha1_P(B, C, D, E, A, sha1_R(79)); + +#undef sha1_K +#undef sha1_F + + state[0] += A; + state[1] += B; + state[2] += C; + state[3] += D; + state[4] += E; +} + +// Public methods + +void SHA1Builder::begin() { + total[0] = 0; + total[1] = 0; + + state[0] = 0x67452301; + state[1] = 0xEFCDAB89; + state[2] = 0x98BADCFE; + state[3] = 0x10325476; + state[4] = 0xC3D2E1F0; + + memset(buffer, 0x00, sizeof(buffer)); + memset(hash, 0x00, sizeof(hash)); +} + +void SHA1Builder::add(const uint8_t *data, size_t len) { + size_t fill; + uint32_t left; + + if (len == 0) { + return; + } + + left = total[0] & 0x3F; + fill = 64 - left; + + total[0] += (uint32_t)len; + total[0] &= 0xFFFFFFFF; + + if (total[0] < (uint32_t)len) { + total[1]++; + } + + if (left && len >= fill) { + memcpy((void *)(buffer + left), data, fill); + process(buffer); + data += fill; + len -= fill; + left = 0; + } + + while (len >= 64) { + process(data); + data += 64; + len -= 64; + } + + if (len > 0) { + memcpy((void *)(buffer + left), data, len); + } +} + +void SHA1Builder::calculate(void) { + uint32_t last, padn; + uint32_t high, low; + uint8_t msglen[8]; + + high = (total[0] >> 29) | (total[1] << 3); + low = (total[0] << 3); + + PUT_UINT32_BE(high, msglen, 0); + PUT_UINT32_BE(low, msglen, 4); + + last = total[0] & 0x3F; + padn = (last < 56) ? (56 - last) : (120 - last); + + add((uint8_t *)sha1_padding, padn); + add(msglen, 8); + + PUT_UINT32_BE(state[0], hash, 0); + PUT_UINT32_BE(state[1], hash, 4); + PUT_UINT32_BE(state[2], hash, 8); + PUT_UINT32_BE(state[3], hash, 12); + PUT_UINT32_BE(state[4], hash, 16); +} + +void SHA1Builder::getBytes(uint8_t *output) { + memcpy(output, hash, SHA1_HASH_SIZE); +} + +#endif // ESP_IDF_VERSION_MAJOR < 5 diff --git a/src/BackPort_SHA1Builder.h b/src/BackPort_SHA1Builder.h new file mode 100644 index 000000000..8f518259b --- /dev/null +++ b/src/BackPort_SHA1Builder.h @@ -0,0 +1,44 @@ +// Copyright 2024 Espressif Systems (Shanghai) PTE LTD +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#include +#if ESP_IDF_VERSION_MAJOR < 5 + +#ifndef SHA1Builder_h +#define SHA1Builder_h + +#include +#include + +#define SHA1_HASH_SIZE 20 + +class SHA1Builder { + private: + uint32_t total[2]; /* number of bytes processed */ + uint32_t state[5]; /* intermediate digest state */ + unsigned char buffer[64]; /* data block being processed */ + uint8_t hash[SHA1_HASH_SIZE]; /* SHA-1 result */ + + void process(const uint8_t* data); + + public: + void begin(); + void add(const uint8_t* data, size_t len); + void calculate(); + void getBytes(uint8_t* output); +}; + +#endif // SHA1Builder_h + +#endif // ESP_IDF_VERSION_MAJOR < 5 diff --git a/src/ChunkPrint.cpp b/src/ChunkPrint.cpp new file mode 100644 index 000000000..8c9717a56 --- /dev/null +++ b/src/ChunkPrint.cpp @@ -0,0 +1,16 @@ +#include + +ChunkPrint::ChunkPrint(uint8_t* destination, size_t from, size_t len) + : _destination(destination), _to_skip(from), _to_write(len), _pos{0} {} + +size_t ChunkPrint::write(uint8_t c) { + if (_to_skip > 0) { + _to_skip--; + return 1; + } else if (_to_write > 0) { + _to_write--; + _destination[_pos++] = c; + return 1; + } + return 0; +} \ No newline at end of file diff --git a/src/ChunkPrint.h b/src/ChunkPrint.h new file mode 100644 index 000000000..47988e17c --- /dev/null +++ b/src/ChunkPrint.h @@ -0,0 +1,18 @@ +#ifndef CHUNKPRINT_H +#define CHUNKPRINT_H + +#include + +class ChunkPrint : public Print { + private: + uint8_t* _destination; + size_t _to_skip; + size_t _to_write; + size_t _pos; + + public: + ChunkPrint(uint8_t* destination, size_t from, size_t len); + size_t write(uint8_t c); + size_t write(const uint8_t* buffer, size_t size) { return this->Print::write(buffer, size); } +}; +#endif diff --git a/src/ESPAsyncWebServer.h b/src/ESPAsyncWebServer.h index cfe1fa73d..00aed07d0 100644 --- a/src/ESPAsyncWebServer.h +++ b/src/ESPAsyncWebServer.h @@ -23,22 +23,42 @@ #include "Arduino.h" -#include #include "FS.h" - -#include "StringArray.h" +#include +#include +#include +#include +#include +#include #ifdef ESP32 -#include -#include + #include + #include #elif defined(ESP8266) -#include -#include + #include + #include +#elif defined(TARGET_RP2040) + #include + #include + #include + #include #else -#error Platform not supported + #error Platform not supported #endif -#define DEBUGF(...) //Serial.printf(__VA_ARGS__) +#include "literals.h" + +#define ASYNCWEBSERVER_VERSION "3.6.0" +#define ASYNCWEBSERVER_VERSION_MAJOR 3 +#define ASYNCWEBSERVER_VERSION_MINOR 6 +#define ASYNCWEBSERVER_VERSION_REVISION 0 +#define ASYNCWEBSERVER_FORK_ESP32Async + +#ifdef ASYNCWEBSERVER_REGEX + #define ASYNCWEBSERVER_REGEX_ATTRIBUTE +#else + #define ASYNCWEBSERVER_REGEX_ATTRIBUTE __attribute__((warning("ASYNCWEBSERVER_REGEX not defined"))) +#endif class AsyncWebServer; class AsyncWebServerRequest; @@ -50,22 +70,41 @@ class AsyncWebHandler; class AsyncStaticWebHandler; class AsyncCallbackWebHandler; class AsyncResponseStream; +class AsyncMiddlewareChain; -#ifndef WEBSERVER_H +#if defined(TARGET_RP2040) +typedef enum http_method WebRequestMethod; +#else + #ifndef WEBSERVER_H typedef enum { - HTTP_GET = 0b00000001, - HTTP_POST = 0b00000010, - HTTP_DELETE = 0b00000100, - HTTP_PUT = 0b00001000, - HTTP_PATCH = 0b00010000, - HTTP_HEAD = 0b00100000, + HTTP_GET = 0b00000001, + HTTP_POST = 0b00000010, + HTTP_DELETE = 0b00000100, + HTTP_PUT = 0b00001000, + HTTP_PATCH = 0b00010000, + HTTP_HEAD = 0b00100000, HTTP_OPTIONS = 0b01000000, - HTTP_ANY = 0b01111111, + HTTP_ANY = 0b01111111, } WebRequestMethod; + #endif +#endif + +#ifndef HAVE_FS_FILE_OPEN_MODE +namespace fs { + class FileOpenMode { + public: + static const char* read; + static const char* write; + static const char* append; + }; +}; +#else + #include "FileOpenMode.h" #endif -//if this value is returned when asked for data, packet will not be sent and you will be asked for data again -#define RESPONSE_TRY_AGAIN 0xFFFFFFFF +// if this value is returned when asked for data, packet will not be sent and you will be asked for data again +#define RESPONSE_TRY_AGAIN 0xFFFFFFFF +#define RESPONSE_STREAM_BUFFER_SIZE 1460 typedef uint8_t WebRequestMethodComposite; typedef std::function ArDisconnectHandler; @@ -83,8 +122,7 @@ class AsyncWebParameter { bool _isFile; public: - - AsyncWebParameter(const String& name, const String& value, bool form=false, bool file=false, size_t size=0): _name(name), _value(value), _size(size), _isForm(form), _isFile(file){} + AsyncWebParameter(const String& name, const String& value, bool form = false, bool file = false, size_t size = 0) : _name(name), _value(value), _size(size), _isForm(form), _isFile(file) {} const String& name() const { return _name; } const String& value() const { return _value; } size_t size() const { return _size; } @@ -102,41 +140,58 @@ class AsyncWebHeader { String _value; public: - AsyncWebHeader(const String& name, const String& value): _name(name), _value(value){} - AsyncWebHeader(const String& data): _name(), _value(){ - if(!data) return; - int index = data.indexOf(':'); - if (index < 0) return; - _name = data.substring(0, index); - _value = data.substring(index + 2); - } - ~AsyncWebHeader(){} + AsyncWebHeader(const AsyncWebHeader&) = default; + AsyncWebHeader(const char* name, const char* value) : _name(name), _value(value) {} + AsyncWebHeader(const String& name, const String& value) : _name(name), _value(value) {} + AsyncWebHeader(const String& data); + + AsyncWebHeader& operator=(const AsyncWebHeader&) = default; + const String& name() const { return _name; } const String& value() const { return _value; } - String toString() const { return String(_name+": "+_value+"\r\n"); } + String toString() const; }; /* * REQUEST :: Each incoming Client is wrapped inside a Request and both live together until disconnect * */ -typedef enum { RCT_NOT_USED = -1, RCT_DEFAULT = 0, RCT_HTTP, RCT_WS, RCT_EVENT, RCT_MAX } RequestedConnectionType; +typedef enum { RCT_NOT_USED = -1, + RCT_DEFAULT = 0, + RCT_HTTP, + RCT_WS, + RCT_EVENT, + RCT_MAX } RequestedConnectionType; + +// this enum is similar to Arduino WebServer's AsyncAuthType and PsychicHttp +typedef enum { + AUTH_NONE = 0, // always allow + AUTH_BASIC = 1, + AUTH_DIGEST = 2, + AUTH_BEARER = 3, + AUTH_OTHER = 4, + AUTH_DENIED = 255, // always returns 401 +} AsyncAuthType; typedef std::function AwsResponseFiller; typedef std::function AwsTemplateProcessor; class AsyncWebServerRequest { - using File = fs::File; - using FS = fs::FS; - friend class AsyncWebServer; + using File = fs::File; + using FS = fs::FS; + friend class AsyncWebServer; + friend class AsyncCallbackWebHandler; + private: AsyncClient* _client; AsyncWebServer* _server; AsyncWebHandler* _handler; AsyncWebServerResponse* _response; - StringArray _interestingHeaders; ArDisconnectHandler _onDisconnectfn; + // response is sent + bool _sent = false; + String _temp; uint8_t _parseState; @@ -148,16 +203,18 @@ class AsyncWebServerRequest { String _boundary; String _authorization; RequestedConnectionType _reqconntype; - void _removeNotInterestingHeaders(); - bool _isDigest; + AsyncAuthType _authMethod = AsyncAuthType::AUTH_NONE; bool _isMultipart; bool _isPlainPost; bool _expectingContinue; size_t _contentLength; size_t _parsedLength; - LinkedList _headers; - LinkedList _params; + std::list _headers; + std::list _params; + std::vector _pathParams; + + std::unordered_map, std::equal_to> _attributes; uint8_t _multiParseState; uint8_t _boundaryPosition; @@ -167,7 +224,7 @@ class AsyncWebServerRequest { String _itemFilename; String _itemType; String _itemValue; - uint8_t *_itemBuffer; + uint8_t* _itemBuffer; size_t _itemBufferIndex; bool _itemIsFile; @@ -176,9 +233,9 @@ class AsyncWebServerRequest { void _onError(int8_t error); void _onTimeout(uint32_t time); void _onDisconnect(); - void _onData(void *buf, size_t len); + void _onData(void* buf, size_t len); - void _addParam(AsyncWebParameter*); + void _addPathParam(const char* param); bool _parseReqHead(); bool _parseReqHeader(); @@ -193,12 +250,12 @@ class AsyncWebServerRequest { public: File _tempFile; - void *_tempObject; + void* _tempObject; AsyncWebServerRequest(AsyncWebServer*, AsyncClient*); ~AsyncWebServerRequest(); - AsyncClient* client(){ return _client; } + AsyncClient* client() { return _client; } uint8_t version() const { return _version; } WebRequestMethodComposite method() const { return _method; } const String& url() const { return _url; } @@ -206,72 +263,238 @@ class AsyncWebServerRequest { const String& contentType() const { return _contentType; } size_t contentLength() const { return _contentLength; } bool multipart() const { return _isMultipart; } - const char * methodToString() const; - const char * requestedConnTypeToString() const; + + const char* methodToString() const; + const char* requestedConnTypeToString() const; + RequestedConnectionType requestedConnType() const { return _reqconntype; } - bool isExpectedRequestedConnType(RequestedConnectionType erct1, RequestedConnectionType erct2 = RCT_NOT_USED, RequestedConnectionType erct3 = RCT_NOT_USED); - void onDisconnect (ArDisconnectHandler fn); - - //hash is the string representation of: - // base64(user:pass) for basic or - // user:realm:md5(user:realm:pass) for digest - bool authenticate(const char * hash); - bool authenticate(const char * username, const char * password, const char * realm = NULL, bool passwordIsHash = false); - void requestAuthentication(const char * realm = NULL, bool isDigest = true); - - void setHandler(AsyncWebHandler *handler){ _handler = handler; } - void addInterestingHeader(const String& name); - - void redirect(const String& url); - - void send(AsyncWebServerResponse *response); - void send(int code, const String& contentType=String(), const String& content=String()); - void send(FS &fs, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr); - void send(File content, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr); - void send(Stream &stream, const String& contentType, size_t len, AwsTemplateProcessor callback=nullptr); - void send(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr); - void sendChunked(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr); - void send_P(int code, const String& contentType, const uint8_t * content, size_t len, AwsTemplateProcessor callback=nullptr); - void send_P(int code, const String& contentType, PGM_P content, AwsTemplateProcessor callback=nullptr); - - AsyncWebServerResponse *beginResponse(int code, const String& contentType=String(), const String& content=String()); - AsyncWebServerResponse *beginResponse(FS &fs, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr); - AsyncWebServerResponse *beginResponse(File content, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr); - AsyncWebServerResponse *beginResponse(Stream &stream, const String& contentType, size_t len, AwsTemplateProcessor callback=nullptr); - AsyncWebServerResponse *beginResponse(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr); - AsyncWebServerResponse *beginChunkedResponse(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr); - AsyncResponseStream *beginResponseStream(const String& contentType, size_t bufferSize=1460); - AsyncWebServerResponse *beginResponse_P(int code, const String& contentType, const uint8_t * content, size_t len, AwsTemplateProcessor callback=nullptr); - AsyncWebServerResponse *beginResponse_P(int code, const String& contentType, PGM_P content, AwsTemplateProcessor callback=nullptr); - - size_t headers() const; // get header count - bool hasHeader(const String& name) const; // check if header exists - bool hasHeader(const __FlashStringHelper * data) const; // check if header exists - - AsyncWebHeader* getHeader(const String& name) const; - AsyncWebHeader* getHeader(const __FlashStringHelper * data) const; - AsyncWebHeader* getHeader(size_t num) const; - - size_t params() const; // get arguments count - bool hasParam(const String& name, bool post=false, bool file=false) const; - bool hasParam(const __FlashStringHelper * data, bool post=false, bool file=false) const; - - AsyncWebParameter* getParam(const String& name, bool post=false, bool file=false) const; - AsyncWebParameter* getParam(const __FlashStringHelper * data, bool post, bool file) const; - AsyncWebParameter* getParam(size_t num) const; - - size_t args() const { return params(); } // get arguments count - const String& arg(const String& name) const; // get request argument value by name - const String& arg(const __FlashStringHelper * data) const; // get request argument value by F(name) - const String& arg(size_t i) const; // get request argument value by number - const String& argName(size_t i) const; // get request argument name by number - bool hasArg(const char* name) const; // check if argument exists - bool hasArg(const __FlashStringHelper * data) const; // check if F(argument) exists - - const String& header(const char* name) const;// get request header value by name - const String& header(const __FlashStringHelper * data) const;// get request header value by F(name) - const String& header(size_t i) const; // get request header value by number - const String& headerName(size_t i) const; // get request header name by number + bool isExpectedRequestedConnType(RequestedConnectionType erct1, RequestedConnectionType erct2 = RCT_NOT_USED, RequestedConnectionType erct3 = RCT_NOT_USED) const; + bool isWebSocketUpgrade() const { return _method == HTTP_GET && isExpectedRequestedConnType(RCT_WS); } + bool isSSE() const { return _method == HTTP_GET && isExpectedRequestedConnType(RCT_EVENT); } + bool isHTTP() const { return isExpectedRequestedConnType(RCT_DEFAULT, RCT_HTTP); } + void onDisconnect(ArDisconnectHandler fn); + + // hash is the string representation of: + // base64(user:pass) for basic or + // user:realm:md5(user:realm:pass) for digest + bool authenticate(const char* hash) const; + bool authenticate(const char* username, const char* credentials, const char* realm = NULL, bool isHash = false) const; + void requestAuthentication(const char* realm = nullptr, bool isDigest = true) { requestAuthentication(isDigest ? AsyncAuthType::AUTH_DIGEST : AsyncAuthType::AUTH_BASIC, realm); } + void requestAuthentication(AsyncAuthType method, const char* realm = nullptr, const char* _authFailMsg = nullptr); + + void setHandler(AsyncWebHandler* handler) { _handler = handler; } + +#ifndef ESP8266 + [[deprecated("All headers are now collected. Use removeHeader(name) or AsyncHeaderFreeMiddleware if you really need to free some headers.")]] +#endif + void addInterestingHeader(__unused const char* name) { + } +#ifndef ESP8266 + [[deprecated("All headers are now collected. Use removeHeader(name) or AsyncHeaderFreeMiddleware if you really need to free some headers.")]] +#endif + void addInterestingHeader(__unused const String& name) { + } + + /** + * @brief issue HTTP redirect responce with Location header + * + * @param url - url to redirect to + * @param code - responce code, default is 302 : temporary redirect + */ + void redirect(const char* url, int code = 302); + void redirect(const String& url, int code = 302) { return redirect(url.c_str(), code); }; + + void send(AsyncWebServerResponse* response); + AsyncWebServerResponse* getResponse() const { return _response; } + + void send(int code, const char* contentType = asyncsrv::empty, const char* content = asyncsrv::empty, AwsTemplateProcessor callback = nullptr) { send(beginResponse(code, contentType, content, callback)); } + void send(int code, const String& contentType, const char* content = asyncsrv::empty, AwsTemplateProcessor callback = nullptr) { send(beginResponse(code, contentType.c_str(), content, callback)); } + void send(int code, const String& contentType, const String& content, AwsTemplateProcessor callback = nullptr) { send(beginResponse(code, contentType.c_str(), content.c_str(), callback)); } + + void send(int code, const char* contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback = nullptr) { send(beginResponse(code, contentType, content, len, callback)); } + void send(int code, const String& contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback = nullptr) { send(beginResponse(code, contentType, content, len, callback)); } + + void send(FS& fs, const String& path, const char* contentType = asyncsrv::empty, bool download = false, AwsTemplateProcessor callback = nullptr) { + if (fs.exists(path) || (!download && fs.exists(path + asyncsrv::T__gz))) { + send(beginResponse(fs, path, contentType, download, callback)); + } else + send(404); + } + void send(FS& fs, const String& path, const String& contentType, bool download = false, AwsTemplateProcessor callback = nullptr) { send(fs, path, contentType.c_str(), download, callback); } + + void send(File content, const String& path, const char* contentType = asyncsrv::empty, bool download = false, AwsTemplateProcessor callback = nullptr) { + if (content) { + send(beginResponse(content, path, contentType, download, callback)); + } else + send(404); + } + void send(File content, const String& path, const String& contentType, bool download = false, AwsTemplateProcessor callback = nullptr) { send(content, path, contentType.c_str(), download, callback); } + + void send(Stream& stream, const char* contentType, size_t len, AwsTemplateProcessor callback = nullptr) { send(beginResponse(stream, contentType, len, callback)); } + void send(Stream& stream, const String& contentType, size_t len, AwsTemplateProcessor callback = nullptr) { send(beginResponse(stream, contentType, len, callback)); } + + void send(const char* contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr) { send(beginResponse(contentType, len, callback, templateCallback)); } + void send(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr) { send(beginResponse(contentType, len, callback, templateCallback)); } + + void sendChunked(const char* contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr) { send(beginChunkedResponse(contentType, callback, templateCallback)); } + void sendChunked(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr) { send(beginChunkedResponse(contentType, callback, templateCallback)); } + +#ifndef ESP8266 + [[deprecated("Replaced by send(int code, const String& contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback = nullptr)")]] +#endif + void send_P(int code, const String& contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback = nullptr) { + send(code, contentType, content, len, callback); + } +#ifndef ESP8266 + [[deprecated("Replaced by send(int code, const String& contentType, const char* content = asyncsrv::empty, AwsTemplateProcessor callback = nullptr)")]] + void send_P(int code, const String& contentType, PGM_P content, AwsTemplateProcessor callback = nullptr) { + send(code, contentType, content, callback); + } +#else + void send_P(int code, const String& contentType, PGM_P content, AwsTemplateProcessor callback = nullptr) { + send(beginResponse_P(code, contentType, content, callback)); + } +#endif + + AsyncWebServerResponse* beginResponse(int code, const char* contentType = asyncsrv::empty, const char* content = asyncsrv::empty, AwsTemplateProcessor callback = nullptr); + AsyncWebServerResponse* beginResponse(int code, const String& contentType, const char* content = asyncsrv::empty, AwsTemplateProcessor callback = nullptr) { return beginResponse(code, contentType.c_str(), content, callback); } + AsyncWebServerResponse* beginResponse(int code, const String& contentType, const String& content, AwsTemplateProcessor callback = nullptr) { return beginResponse(code, contentType.c_str(), content.c_str(), callback); } + + AsyncWebServerResponse* beginResponse(int code, const char* contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback = nullptr); + AsyncWebServerResponse* beginResponse(int code, const String& contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback = nullptr) { return beginResponse(code, contentType.c_str(), content, len, callback); } + + AsyncWebServerResponse* beginResponse(FS& fs, const String& path, const char* contentType = asyncsrv::empty, bool download = false, AwsTemplateProcessor callback = nullptr); + AsyncWebServerResponse* beginResponse(FS& fs, const String& path, const String& contentType = emptyString, bool download = false, AwsTemplateProcessor callback = nullptr) { return beginResponse(fs, path, contentType.c_str(), download, callback); } + + AsyncWebServerResponse* beginResponse(File content, const String& path, const char* contentType = asyncsrv::empty, bool download = false, AwsTemplateProcessor callback = nullptr); + AsyncWebServerResponse* beginResponse(File content, const String& path, const String& contentType = emptyString, bool download = false, AwsTemplateProcessor callback = nullptr) { return beginResponse(content, path, contentType.c_str(), download, callback); } + + AsyncWebServerResponse* beginResponse(Stream& stream, const char* contentType, size_t len, AwsTemplateProcessor callback = nullptr); + AsyncWebServerResponse* beginResponse(Stream& stream, const String& contentType, size_t len, AwsTemplateProcessor callback = nullptr) { return beginResponse(stream, contentType.c_str(), len, callback); } + + AsyncWebServerResponse* beginResponse(const char* contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr); + AsyncWebServerResponse* beginResponse(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr) { return beginResponse(contentType.c_str(), len, callback, templateCallback); } + + AsyncWebServerResponse* beginChunkedResponse(const char* contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr); + AsyncWebServerResponse* beginChunkedResponse(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr); + + AsyncResponseStream* beginResponseStream(const char* contentType, size_t bufferSize = RESPONSE_STREAM_BUFFER_SIZE); + AsyncResponseStream* beginResponseStream(const String& contentType, size_t bufferSize = RESPONSE_STREAM_BUFFER_SIZE) { return beginResponseStream(contentType.c_str(), bufferSize); } + +#ifndef ESP8266 + [[deprecated("Replaced by beginResponse(int code, const String& contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback = nullptr)")]] +#endif + AsyncWebServerResponse* beginResponse_P(int code, const String& contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback = nullptr) { + return beginResponse(code, contentType.c_str(), content, len, callback); + } +#ifndef ESP8266 + [[deprecated("Replaced by beginResponse(int code, const String& contentType, const char* content = asyncsrv::empty, AwsTemplateProcessor callback = nullptr)")]] +#endif + AsyncWebServerResponse* beginResponse_P(int code, const String& contentType, PGM_P content, AwsTemplateProcessor callback = nullptr); + + /** + * @brief Get the Request parameter by name + * + * @param name + * @param post + * @param file + * @return const AsyncWebParameter* + */ + const AsyncWebParameter* getParam(const char* name, bool post = false, bool file = false) const; + + const AsyncWebParameter* getParam(const String& name, bool post = false, bool file = false) const { return getParam(name.c_str(), post, file); }; +#ifdef ESP8266 + const AsyncWebParameter* getParam(const __FlashStringHelper* data, bool post, bool file) const; +#endif + + /** + * @brief Get request parameter by number + * i.e., n-th parameter + * @param num + * @return const AsyncWebParameter* + */ + const AsyncWebParameter* getParam(size_t num) const; + + size_t args() const { return params(); } // get arguments count + + // get request argument value by name + const String& arg(const char* name) const; + // get request argument value by name + const String& arg(const String& name) const { return arg(name.c_str()); }; +#ifdef ESP8266 + const String& arg(const __FlashStringHelper* data) const; // get request argument value by F(name) +#endif + const String& arg(size_t i) const; // get request argument value by number + const String& argName(size_t i) const; // get request argument name by number + bool hasArg(const char* name) const; // check if argument exists + bool hasArg(const String& name) const { return hasArg(name.c_str()); }; +#ifdef ESP8266 + bool hasArg(const __FlashStringHelper* data) const; // check if F(argument) exists +#endif + + const String& ASYNCWEBSERVER_REGEX_ATTRIBUTE pathArg(size_t i) const; + + // get request header value by name + const String& header(const char* name) const; + const String& header(const String& name) const { return header(name.c_str()); }; + +#ifdef ESP8266 + const String& header(const __FlashStringHelper* data) const; // get request header value by F(name) +#endif + + const String& header(size_t i) const; // get request header value by number + const String& headerName(size_t i) const; // get request header name by number + + size_t headers() const; // get header count + + // check if header exists + bool hasHeader(const char* name) const; + bool hasHeader(const String& name) const { return hasHeader(name.c_str()); }; +#ifdef ESP8266 + bool hasHeader(const __FlashStringHelper* data) const; // check if header exists +#endif + + const AsyncWebHeader* getHeader(const char* name) const; + const AsyncWebHeader* getHeader(const String& name) const { return getHeader(name.c_str()); }; +#ifdef ESP8266 + const AsyncWebHeader* getHeader(const __FlashStringHelper* data) const; +#endif + + const AsyncWebHeader* getHeader(size_t num) const; + + const std::list& getHeaders() const { return _headers; } + + size_t getHeaderNames(std::vector& names) const; + + // Remove a header from the request. + // It will free the memory and prevent the header to be seen during request processing. + bool removeHeader(const char* name); + // Remove all request headers. + void removeHeaders() { _headers.clear(); } + + size_t params() const; // get arguments count + bool hasParam(const char* name, bool post = false, bool file = false) const; + bool hasParam(const String& name, bool post = false, bool file = false) const { return hasParam(name.c_str(), post, file); }; +#ifdef ESP8266 + bool hasParam(const __FlashStringHelper* data, bool post = false, bool file = false) const { return hasParam(String(data).c_str(), post, file); }; +#endif + + // REQUEST ATTRIBUTES + + void setAttribute(const char* name, const char* value) { _attributes[name] = value; } + void setAttribute(const char* name, bool value) { _attributes[name] = value ? "1" : emptyString; } + void setAttribute(const char* name, long value) { _attributes[name] = String(value); } + void setAttribute(const char* name, float value, unsigned int decimalPlaces = 2) { _attributes[name] = String(value, decimalPlaces); } + void setAttribute(const char* name, double value, unsigned int decimalPlaces = 2) { _attributes[name] = String(value, decimalPlaces); } + + bool hasAttribute(const char* name) const { return _attributes.find(name) != _attributes.end(); } + + const String& getAttribute(const char* name, const String& defaultValue = emptyString) const; + bool getAttribute(const char* name, bool defaultValue) const; + long getAttribute(const char* name, long defaultValue) const; + float getAttribute(const char* name, float defaultValue) const; + double getAttribute(const char* name, double defaultValue) const; + String urlDecode(const String& text) const; }; @@ -279,11 +502,192 @@ class AsyncWebServerRequest { * FILTER :: Callback to filter AsyncWebRewrite and AsyncWebHandler (done by the Server) * */ -typedef std::function ArRequestFilterFunction; +using ArRequestFilterFunction = std::function; -bool ON_STA_FILTER(AsyncWebServerRequest *request); +bool ON_STA_FILTER(AsyncWebServerRequest* request); -bool ON_AP_FILTER(AsyncWebServerRequest *request); +bool ON_AP_FILTER(AsyncWebServerRequest* request); + +/* + * MIDDLEWARE :: Request interceptor, assigned to a AsyncWebHandler (or the server), which can be used: + * 1. to run some code before the final handler is executed (e.g. check authentication) + * 2. decide whether to proceed or not with the next handler + * */ + +using ArMiddlewareNext = std::function; +using ArMiddlewareCallback = std::function; + +// Middleware is a base class for all middleware +class AsyncMiddleware { + public: + virtual ~AsyncMiddleware() {} + virtual void run(__unused AsyncWebServerRequest* request, __unused ArMiddlewareNext next) { return next(); }; + + private: + friend class AsyncWebHandler; + friend class AsyncEventSource; + friend class AsyncMiddlewareChain; + bool _freeOnRemoval = false; +}; + +// Create a custom middleware by providing an anonymous callback function +class AsyncMiddlewareFunction : public AsyncMiddleware { + public: + AsyncMiddlewareFunction(ArMiddlewareCallback fn) : _fn(fn) {} + void run(AsyncWebServerRequest* request, ArMiddlewareNext next) override { return _fn(request, next); }; + + private: + ArMiddlewareCallback _fn; +}; + +// For internal use only: super class to add/remove middleware to server or handlers +class AsyncMiddlewareChain { + public: + ~AsyncMiddlewareChain(); + + void addMiddleware(ArMiddlewareCallback fn); + void addMiddleware(AsyncMiddleware* middleware); + void addMiddlewares(std::vector middlewares); + bool removeMiddleware(AsyncMiddleware* middleware); + + // For internal use only + void _runChain(AsyncWebServerRequest* request, ArMiddlewareNext finalizer); + + protected: + std::list _middlewares; +}; + +// AsyncAuthenticationMiddleware is a middleware that checks if the request is authenticated +class AsyncAuthenticationMiddleware : public AsyncMiddleware { + public: + void setUsername(const char* username); + void setPassword(const char* password); + void setPasswordHash(const char* hash); + + void setRealm(const char* realm) { _realm = realm; } + void setAuthFailureMessage(const char* message) { _authFailMsg = message; } + + // set the authentication method to use + // default is AUTH_NONE: no authentication required + // AUTH_BASIC: basic authentication + // AUTH_DIGEST: digest authentication + // AUTH_BEARER: bearer token authentication + // AUTH_OTHER: other authentication method + // AUTH_DENIED: always return 401 Unauthorized + // if a method is set but no username or password is set, authentication will be ignored + void setAuthType(AsyncAuthType authMethod) { _authMethod = authMethod; } + + // precompute and store the hash value based on the username, password, realm. + // can be used for DIGEST and BASIC to avoid recomputing the hash for each request. + // returns true if the hash was successfully generated and replaced + bool generateHash(); + + // returns true if the username and password (or hash) are set + bool hasCredentials() const { return _hasCreds; } + + bool allowed(AsyncWebServerRequest* request) const; + + void run(AsyncWebServerRequest* request, ArMiddlewareNext next); + + private: + String _username; + String _credentials; + bool _hash = false; + + String _realm = asyncsrv::T_LOGIN_REQ; + AsyncAuthType _authMethod = AsyncAuthType::AUTH_NONE; + String _authFailMsg; + bool _hasCreds = false; +}; + +using ArAuthorizeFunction = std::function; +// AsyncAuthorizationMiddleware is a middleware that checks if the request is authorized +class AsyncAuthorizationMiddleware : public AsyncMiddleware { + public: + AsyncAuthorizationMiddleware(ArAuthorizeFunction authorizeConnectHandler) : _code(403), _authz(authorizeConnectHandler) {} + AsyncAuthorizationMiddleware(int code, ArAuthorizeFunction authorizeConnectHandler) : _code(code), _authz(authorizeConnectHandler) {} + + void run(AsyncWebServerRequest* request, ArMiddlewareNext next) { return _authz && !_authz(request) ? request->send(_code) : next(); } + + private: + int _code; + ArAuthorizeFunction _authz; +}; + +// remove all headers from the incoming request except the ones provided in the constructor +class AsyncHeaderFreeMiddleware : public AsyncMiddleware { + public: + void keep(const char* name) { _toKeep.push_back(name); } + void unKeep(const char* name) { _toKeep.erase(std::remove(_toKeep.begin(), _toKeep.end(), name), _toKeep.end()); } + + void run(AsyncWebServerRequest* request, ArMiddlewareNext next); + + private: + std::vector _toKeep; +}; + +// filter out specific headers from the incoming request +class AsyncHeaderFilterMiddleware : public AsyncMiddleware { + public: + void filter(const char* name) { _toRemove.push_back(name); } + void unFilter(const char* name) { _toRemove.erase(std::remove(_toRemove.begin(), _toRemove.end(), name), _toRemove.end()); } + + void run(AsyncWebServerRequest* request, ArMiddlewareNext next); + + private: + std::vector _toRemove; +}; + +// curl-like logging of incoming requests +class AsyncLoggingMiddleware : public AsyncMiddleware { + public: + void setOutput(Print& output) { _out = &output; } + void setEnabled(bool enabled) { _enabled = enabled; } + bool isEnabled() const { return _enabled && _out; } + + void run(AsyncWebServerRequest* request, ArMiddlewareNext next); + + private: + Print* _out = nullptr; + bool _enabled = true; +}; + +// CORS Middleware +class AsyncCorsMiddleware : public AsyncMiddleware { + public: + void setOrigin(const char* origin) { _origin = origin; } + void setMethods(const char* methods) { _methods = methods; } + void setHeaders(const char* headers) { _headers = headers; } + void setAllowCredentials(bool credentials) { _credentials = credentials; } + void setMaxAge(uint32_t seconds) { _maxAge = seconds; } + + void addCORSHeaders(AsyncWebServerResponse* response); + + void run(AsyncWebServerRequest* request, ArMiddlewareNext next); + + private: + String _origin = "*"; + String _methods = "*"; + String _headers = "*"; + bool _credentials = true; + uint32_t _maxAge = 86400; +}; + +// Rate limit Middleware +class AsyncRateLimitMiddleware : public AsyncMiddleware { + public: + void setMaxRequests(size_t maxRequests) { _maxRequests = maxRequests; } + void setWindowSize(uint32_t seconds) { _windowSizeMillis = seconds * 1000; } + + bool isRequestAllowed(uint32_t& retryAfterSeconds); + + void run(AsyncWebServerRequest* request, ArMiddlewareNext next); + + private: + size_t _maxRequests = 0; + uint32_t _windowSizeMillis = 0; + std::list _requestTimes; +}; /* * REWRITE :: One instance can be handle any Request (done by the Server) @@ -294,46 +698,49 @@ class AsyncWebRewrite { String _from; String _toUrl; String _params; - ArRequestFilterFunction _filter; + ArRequestFilterFunction _filter{nullptr}; + public: - AsyncWebRewrite(const char* from, const char* to): _from(from), _toUrl(to), _params(String()), _filter(NULL){ + AsyncWebRewrite(const char* from, const char* to) : _from(from), _toUrl(to) { int index = _toUrl.indexOf('?'); if (index > 0) { - _params = _toUrl.substring(index +1); + _params = _toUrl.substring(index + 1); _toUrl = _toUrl.substring(0, index); } } - virtual ~AsyncWebRewrite(){} - AsyncWebRewrite& setFilter(ArRequestFilterFunction fn) { _filter = fn; return *this; } - bool filter(AsyncWebServerRequest *request) const { return _filter == NULL || _filter(request); } + virtual ~AsyncWebRewrite() {} + AsyncWebRewrite& setFilter(ArRequestFilterFunction fn) { + _filter = fn; + return *this; + } + bool filter(AsyncWebServerRequest* request) const { return _filter == NULL || _filter(request); } const String& from(void) const { return _from; } const String& toUrl(void) const { return _toUrl; } const String& params(void) const { return _params; } - virtual bool match(AsyncWebServerRequest *request) { return from() == request->url() && filter(request); } + virtual bool match(AsyncWebServerRequest* request) { return from() == request->url() && filter(request); } }; /* * HANDLER :: One instance can be attached to any Request (done by the Server) * */ -class AsyncWebHandler { +class AsyncWebHandler : public AsyncMiddlewareChain { protected: - ArRequestFilterFunction _filter; - String _username; - String _password; + ArRequestFilterFunction _filter = nullptr; + AsyncAuthenticationMiddleware* _authMiddleware = nullptr; + public: - AsyncWebHandler():_username(""), _password(""){} - AsyncWebHandler& setFilter(ArRequestFilterFunction fn) { _filter = fn; return *this; } - AsyncWebHandler& setAuthentication(const char *username, const char *password){ _username = String(username);_password = String(password); return *this; }; - bool filter(AsyncWebServerRequest *request){ return _filter == NULL || _filter(request); } - virtual ~AsyncWebHandler(){} - virtual bool canHandle(AsyncWebServerRequest *request __attribute__((unused))){ - return false; - } - virtual void handleRequest(AsyncWebServerRequest *request __attribute__((unused))){} - virtual void handleUpload(AsyncWebServerRequest *request __attribute__((unused)), const String& filename __attribute__((unused)), size_t index __attribute__((unused)), uint8_t *data __attribute__((unused)), size_t len __attribute__((unused)), bool final __attribute__((unused))){} - virtual void handleBody(AsyncWebServerRequest *request __attribute__((unused)), uint8_t *data __attribute__((unused)), size_t len __attribute__((unused)), size_t index __attribute__((unused)), size_t total __attribute__((unused))){} - virtual bool isRequestHandlerTrivial(){return true;} + AsyncWebHandler() {} + virtual ~AsyncWebHandler() {} + AsyncWebHandler& setFilter(ArRequestFilterFunction fn); + AsyncWebHandler& setAuthentication(const char* username, const char* password, AsyncAuthType authMethod = AsyncAuthType::AUTH_DIGEST); + AsyncWebHandler& setAuthentication(const String& username, const String& password, AsyncAuthType authMethod = AsyncAuthType::AUTH_DIGEST) { return setAuthentication(username.c_str(), password.c_str(), authMethod); }; + bool filter(AsyncWebServerRequest* request) { return _filter == NULL || _filter(request); } + virtual bool canHandle(AsyncWebServerRequest* request __attribute__((unused))) const { return false; } + virtual void handleRequest(__unused AsyncWebServerRequest* request) {} + virtual void handleUpload(__unused AsyncWebServerRequest* request, __unused const String& filename, __unused size_t index, __unused uint8_t* data, __unused size_t len, __unused bool final) {} + virtual void handleBody(__unused AsyncWebServerRequest* request, __unused uint8_t* data, __unused size_t len, __unused size_t index, __unused size_t total) {} + virtual bool isRequestHandlerTrivial() const { return true; } }; /* @@ -341,13 +748,18 @@ class AsyncWebHandler { * */ typedef enum { - RESPONSE_SETUP, RESPONSE_HEADERS, RESPONSE_CONTENT, RESPONSE_WAIT_ACK, RESPONSE_END, RESPONSE_FAILED + RESPONSE_SETUP, + RESPONSE_HEADERS, + RESPONSE_CONTENT, + RESPONSE_WAIT_ACK, + RESPONSE_END, + RESPONSE_FAILED } WebResponseState; class AsyncWebServerResponse { protected: int _code; - LinkedList _headers; + std::list _headers; String _contentType; size_t _contentLength; bool _sendContentLength; @@ -357,37 +769,57 @@ class AsyncWebServerResponse { size_t _ackedLength; size_t _writtenLength; WebResponseState _state; - const char* _responseCodeToString(int code); + + public: + static const char* responseCodeToString(int code); public: AsyncWebServerResponse(); - virtual ~AsyncWebServerResponse(); - virtual void setCode(int code); - virtual void setContentLength(size_t len); - virtual void setContentType(const String& type); - virtual void addHeader(const String& name, const String& value); - virtual String _assembleHead(uint8_t version); + virtual ~AsyncWebServerResponse() {} + void setCode(int code); + int code() const { return _code; } + void setContentLength(size_t len); + void setContentType(const String& type) { setContentType(type.c_str()); } + void setContentType(const char* type); + bool addHeader(const char* name, const char* value, bool replaceExisting = true); + bool addHeader(const String& name, const String& value, bool replaceExisting = true) { return addHeader(name.c_str(), value.c_str(), replaceExisting); } + bool addHeader(const char* name, long value, bool replaceExisting = true) { return addHeader(name, String(value), replaceExisting); } + bool addHeader(const String& name, long value, bool replaceExisting = true) { return addHeader(name.c_str(), value, replaceExisting); } + bool removeHeader(const char* name); + const AsyncWebHeader* getHeader(const char* name) const; + const std::list& getHeaders() const { return _headers; } + +#ifndef ESP8266 + [[deprecated("Use instead: _assembleHead(String& buffer, uint8_t version)")]] +#endif + String _assembleHead(uint8_t version) { + String buffer; + _assembleHead(buffer, version); + return buffer; + } + void _assembleHead(String& buffer, uint8_t version); + virtual bool _started() const; virtual bool _finished() const; virtual bool _failed() const; virtual bool _sourceValid() const; - virtual void _respond(AsyncWebServerRequest *request); - virtual size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time); + virtual void _respond(AsyncWebServerRequest* request); + virtual size_t _ack(AsyncWebServerRequest* request, size_t len, uint32_t time); }; /* * SERVER :: One instance * */ -typedef std::function ArRequestHandlerFunction; -typedef std::function ArUploadHandlerFunction; -typedef std::function ArBodyHandlerFunction; +typedef std::function ArRequestHandlerFunction; +typedef std::function ArUploadHandlerFunction; +typedef std::function ArBodyHandlerFunction; -class AsyncWebServer { +class AsyncWebServer : public AsyncMiddlewareChain { protected: AsyncServer _server; - LinkedList _rewrites; - LinkedList _handlers; + std::list> _rewrites; + std::list> _handlers; AsyncCallbackWebHandler* _catchAllHandler; public: @@ -399,62 +831,97 @@ class AsyncWebServer { #if ASYNC_TCP_SSL_ENABLED void onSslFileRequest(AcSSlFileHandler cb, void* arg); - void beginSecure(const char *cert, const char *private_key_file, const char *password); + void beginSecure(const char* cert, const char* private_key_file, const char* password); #endif AsyncWebRewrite& addRewrite(AsyncWebRewrite* rewrite); - bool removeRewrite(AsyncWebRewrite* rewrite); + + /** + * @brief (compat) Add url rewrite rule by pointer + * a deep copy of the pointer object will be created, + * it is up to user to manage further lifetime of the object in argument + * + * @param rewrite pointer to rewrite object to copy setting from + * @return AsyncWebRewrite& reference to a newly created rewrite rule + */ + AsyncWebRewrite& addRewrite(std::shared_ptr rewrite); + + /** + * @brief add url rewrite rule + * + * @param from + * @param to + * @return AsyncWebRewrite& + */ AsyncWebRewrite& rewrite(const char* from, const char* to); + /** + * @brief (compat) remove rewrite rule via referenced object + * this will NOT deallocate pointed object itself, internal rule with same from/to urls will be removed if any + * it's a compat method, better use `removeRewrite(const char* from, const char* to)` + * @param rewrite + * @return true + * @return false + */ + bool removeRewrite(AsyncWebRewrite* rewrite); + + /** + * @brief remove rewrite rule + * + * @param from + * @param to + * @return true + * @return false + */ + bool removeRewrite(const char* from, const char* to); + AsyncWebHandler& addHandler(AsyncWebHandler* handler); bool removeHandler(AsyncWebHandler* handler); - - AsyncCallbackWebHandler& on(const char* uri, ArRequestHandlerFunction onRequest); - AsyncCallbackWebHandler& on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest); - AsyncCallbackWebHandler& on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest, ArUploadHandlerFunction onUpload); - AsyncCallbackWebHandler& on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest, ArUploadHandlerFunction onUpload, ArBodyHandlerFunction onBody); + + AsyncCallbackWebHandler& on(const char* uri, ArRequestHandlerFunction onRequest) { return on(uri, HTTP_ANY, onRequest); } + AsyncCallbackWebHandler& on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest, ArUploadHandlerFunction onUpload = nullptr, ArBodyHandlerFunction onBody = nullptr); AsyncStaticWebHandler& serveStatic(const char* uri, fs::FS& fs, const char* path, const char* cache_control = NULL); - void onNotFound(ArRequestHandlerFunction fn); //called when handler is not assigned - void onFileUpload(ArUploadHandlerFunction fn); //handle file uploads - void onRequestBody(ArBodyHandlerFunction fn); //handle posts with plain body content (JSON often transmitted this way as a request) + void onNotFound(ArRequestHandlerFunction fn); // called when handler is not assigned + void onFileUpload(ArUploadHandlerFunction fn); // handle file uploads + void onRequestBody(ArBodyHandlerFunction fn); // handle posts with plain body content (JSON often transmitted this way as a request) - void reset(); //remove all writers and handlers, with onNotFound/onFileUpload/onRequestBody - - void _handleDisconnect(AsyncWebServerRequest *request); - void _attachHandler(AsyncWebServerRequest *request); - void _rewriteRequest(AsyncWebServerRequest *request); + void reset(); // remove all writers and handlers, with onNotFound/onFileUpload/onRequestBody + + void _handleDisconnect(AsyncWebServerRequest* request); + void _attachHandler(AsyncWebServerRequest* request); + void _rewriteRequest(AsyncWebServerRequest* request); }; class DefaultHeaders { - using headers_t = LinkedList; - headers_t _headers; - - DefaultHeaders() - :_headers(headers_t([](AsyncWebHeader *h){ delete h; })) - {} -public: - using ConstIterator = headers_t::ConstIterator; - - void addHeader(const String& name, const String& value){ - _headers.add(new AsyncWebHeader(name, value)); - } - - ConstIterator begin() const { return _headers.begin(); } - ConstIterator end() const { return _headers.end(); } - - DefaultHeaders(DefaultHeaders const &) = delete; - DefaultHeaders &operator=(DefaultHeaders const &) = delete; - static DefaultHeaders &Instance() { - static DefaultHeaders instance; - return instance; - } + using headers_t = std::list; + headers_t _headers; + + public: + DefaultHeaders() = default; + + using ConstIterator = headers_t::const_iterator; + + void addHeader(const String& name, const String& value) { + _headers.emplace_back(name, value); + } + + ConstIterator begin() const { return _headers.begin(); } + ConstIterator end() const { return _headers.end(); } + + DefaultHeaders(DefaultHeaders const&) = delete; + DefaultHeaders& operator=(DefaultHeaders const&) = delete; + + static DefaultHeaders& Instance() { + static DefaultHeaders instance; + return instance; + } }; -#include "WebResponseImpl.h" -#include "WebHandlerImpl.h" -#include "AsyncWebSocket.h" #include "AsyncEventSource.h" +#include "AsyncWebSocket.h" +#include "WebHandlerImpl.h" +#include "WebResponseImpl.h" #endif /* _AsyncWebServer_H_ */ diff --git a/src/Middleware.cpp b/src/Middleware.cpp new file mode 100644 index 000000000..1eb8e50f5 --- /dev/null +++ b/src/Middleware.cpp @@ -0,0 +1,256 @@ +#include "WebAuthentication.h" +#include + +AsyncMiddlewareChain::~AsyncMiddlewareChain() { + for (AsyncMiddleware* m : _middlewares) + if (m->_freeOnRemoval) + delete m; +} + +void AsyncMiddlewareChain::addMiddleware(ArMiddlewareCallback fn) { + AsyncMiddlewareFunction* m = new AsyncMiddlewareFunction(fn); + m->_freeOnRemoval = true; + _middlewares.emplace_back(m); +} + +void AsyncMiddlewareChain::addMiddleware(AsyncMiddleware* middleware) { + if (middleware) + _middlewares.emplace_back(middleware); +} + +void AsyncMiddlewareChain::addMiddlewares(std::vector middlewares) { + for (AsyncMiddleware* m : middlewares) + addMiddleware(m); +} + +bool AsyncMiddlewareChain::removeMiddleware(AsyncMiddleware* middleware) { + // remove all middlewares from _middlewares vector being equal to middleware, delete them having _freeOnRemoval flag to true and resize the vector. + const size_t size = _middlewares.size(); + _middlewares.erase(std::remove_if(_middlewares.begin(), _middlewares.end(), [middleware](AsyncMiddleware* m) { + if (m == middleware) { + if (m->_freeOnRemoval) + delete m; + return true; + } + return false; + }), + _middlewares.end()); + return size != _middlewares.size(); +} + +void AsyncMiddlewareChain::_runChain(AsyncWebServerRequest* request, ArMiddlewareNext finalizer) { + if (!_middlewares.size()) + return finalizer(); + ArMiddlewareNext next; + std::list::iterator it = _middlewares.begin(); + next = [this, &next, &it, request, finalizer]() { + if (it == _middlewares.end()) + return finalizer(); + AsyncMiddleware* m = *it; + it++; + return m->run(request, next); + }; + return next(); +} + +void AsyncAuthenticationMiddleware::setUsername(const char* username) { + _username = username; + _hasCreds = _username.length() && _credentials.length(); +} + +void AsyncAuthenticationMiddleware::setPassword(const char* password) { + _credentials = password; + _hash = false; + _hasCreds = _username.length() && _credentials.length(); +} + +void AsyncAuthenticationMiddleware::setPasswordHash(const char* hash) { + _credentials = hash; + _hash = _credentials.length(); + _hasCreds = _username.length() && _credentials.length(); +} + +bool AsyncAuthenticationMiddleware::generateHash() { + // ensure we have all the necessary data + if (!_hasCreds) + return false; + + // if we already have a hash, do nothing + if (_hash) + return false; + + switch (_authMethod) { + case AsyncAuthType::AUTH_DIGEST: + _credentials = generateDigestHash(_username.c_str(), _credentials.c_str(), _realm.c_str()); + _hash = true; + return true; + + case AsyncAuthType::AUTH_BASIC: + _credentials = generateBasicHash(_username.c_str(), _credentials.c_str()); + _hash = true; + return true; + + default: + return false; + } +} + +bool AsyncAuthenticationMiddleware::allowed(AsyncWebServerRequest* request) const { + if (_authMethod == AsyncAuthType::AUTH_NONE) + return true; + + if (_authMethod == AsyncAuthType::AUTH_DENIED) + return false; + + if (!_hasCreds) + return true; + + return request->authenticate(_username.c_str(), _credentials.c_str(), _realm.c_str(), _hash); +} + +void AsyncAuthenticationMiddleware::run(AsyncWebServerRequest* request, ArMiddlewareNext next) { + return allowed(request) ? next() : request->requestAuthentication(_authMethod, _realm.c_str(), _authFailMsg.c_str()); +} + +void AsyncHeaderFreeMiddleware::run(AsyncWebServerRequest* request, ArMiddlewareNext next) { + std::vector reqHeaders; + request->getHeaderNames(reqHeaders); + for (const char* h : reqHeaders) { + bool keep = false; + for (const char* k : _toKeep) { + if (strcasecmp(h, k) == 0) { + keep = true; + break; + } + } + if (!keep) { + request->removeHeader(h); + } + } + next(); +} + +void AsyncHeaderFilterMiddleware::run(AsyncWebServerRequest* request, ArMiddlewareNext next) { + for (auto it = _toRemove.begin(); it != _toRemove.end(); ++it) + request->removeHeader(*it); + next(); +} + +void AsyncLoggingMiddleware::run(AsyncWebServerRequest* request, ArMiddlewareNext next) { + if (!isEnabled()) { + next(); + return; + } + _out->print(F("* Connection from ")); + _out->print(request->client()->remoteIP().toString()); + _out->print(':'); + _out->println(request->client()->remotePort()); + _out->print('>'); + _out->print(' '); + _out->print(request->methodToString()); + _out->print(' '); + _out->print(request->url().c_str()); + _out->print(F(" HTTP/1.")); + _out->println(request->version()); + for (auto& h : request->getHeaders()) { + if (h.value().length()) { + _out->print('>'); + _out->print(' '); + _out->print(h.name()); + _out->print(':'); + _out->print(' '); + _out->println(h.value()); + } + } + _out->println(F(">")); + uint32_t elapsed = millis(); + next(); + elapsed = millis() - elapsed; + AsyncWebServerResponse* response = request->getResponse(); + if (response) { + _out->print(F("* Processed in ")); + _out->print(elapsed); + _out->println(F(" ms")); + _out->print('<'); + _out->print(F(" HTTP/1.")); + _out->print(request->version()); + _out->print(' '); + _out->print(response->code()); + _out->print(' '); + _out->println(AsyncWebServerResponse::responseCodeToString(response->code())); + for (auto& h : response->getHeaders()) { + if (h.value().length()) { + _out->print('<'); + _out->print(' '); + _out->print(h.name()); + _out->print(':'); + _out->print(' '); + _out->println(h.value()); + } + } + _out->println('<'); + } else { + _out->println(F("* Connection closed!")); + } +} + +void AsyncCorsMiddleware::addCORSHeaders(AsyncWebServerResponse* response) { + response->addHeader(asyncsrv::T_CORS_ACAO, _origin.c_str()); + response->addHeader(asyncsrv::T_CORS_ACAM, _methods.c_str()); + response->addHeader(asyncsrv::T_CORS_ACAH, _headers.c_str()); + response->addHeader(asyncsrv::T_CORS_ACAC, _credentials ? asyncsrv::T_TRUE : asyncsrv::T_FALSE); + response->addHeader(asyncsrv::T_CORS_ACMA, String(_maxAge).c_str()); +} + +void AsyncCorsMiddleware::run(AsyncWebServerRequest* request, ArMiddlewareNext next) { + // Origin header ? => CORS handling + if (request->hasHeader(asyncsrv::T_CORS_O)) { + // check if this is a preflight request => handle it and return + if (request->method() == HTTP_OPTIONS) { + AsyncWebServerResponse* response = request->beginResponse(200); + addCORSHeaders(response); + request->send(response); + return; + } + + // CORS request, no options => let the request pass and add CORS headers after + next(); + AsyncWebServerResponse* response = request->getResponse(); + if (response) { + addCORSHeaders(response); + } + + } else { + // NO Origin header => no CORS handling + next(); + } +} + +bool AsyncRateLimitMiddleware::isRequestAllowed(uint32_t& retryAfterSeconds) { + uint32_t now = millis(); + + while (!_requestTimes.empty() && _requestTimes.front() <= now - _windowSizeMillis) + _requestTimes.pop_front(); + + _requestTimes.push_back(now); + + if (_requestTimes.size() > _maxRequests) { + _requestTimes.pop_front(); + retryAfterSeconds = (_windowSizeMillis - (now - _requestTimes.front())) / 1000 + 1; + return false; + } + + retryAfterSeconds = 0; + return true; +} + +void AsyncRateLimitMiddleware::run(AsyncWebServerRequest* request, ArMiddlewareNext next) { + uint32_t retryAfterSeconds; + if (isRequestAllowed(retryAfterSeconds)) { + next(); + } else { + AsyncWebServerResponse* response = request->beginResponse(429); + response->addHeader(asyncsrv::T_retry_after, retryAfterSeconds); + request->send(response); + } +} diff --git a/src/SPIFFSEditor.cpp b/src/SPIFFSEditor.cpp deleted file mode 100644 index a84fa87dd..000000000 --- a/src/SPIFFSEditor.cpp +++ /dev/null @@ -1,544 +0,0 @@ -#include "SPIFFSEditor.h" -#include - -//File: edit.htm.gz, Size: 4151 -#define edit_htm_gz_len 4151 -const uint8_t edit_htm_gz[] PROGMEM = { - 0x1F, 0x8B, 0x08, 0x08, 0xB8, 0x94, 0xB1, 0x59, 0x00, 0x03, 0x65, 0x64, 0x69, 0x74, 0x2E, 0x68, - 0x74, 0x6D, 0x00, 0xB5, 0x3A, 0x0B, 0x7B, 0xDA, 0xB8, 0xB2, 0x7F, 0xC5, 0x71, 0xCF, 0x66, 0xED, - 0x83, 0x31, 0x90, 0xA4, 0xD9, 0xD6, 0xC4, 0xC9, 0x42, 0x92, 0x36, 0x6D, 0xF3, 0x6A, 0x80, 0xB6, - 0x69, 0x4F, 0xEE, 0x7E, 0xC2, 0x16, 0xA0, 0xC6, 0x96, 0x5D, 0x5B, 0x0E, 0x49, 0x59, 0xFE, 0xFB, - 0x9D, 0x91, 0x6C, 0xB0, 0x09, 0x69, 0x77, 0xCF, 0xBD, 0xBB, 0xDD, 0x2D, 0x92, 0x46, 0x33, 0x9A, - 0x19, 0xCD, 0x53, 0xDE, 0xBD, 0x8D, 0xA3, 0x8B, 0xC3, 0xFE, 0xF5, 0xE5, 0xB1, 0x36, 0x11, 0x61, - 0xB0, 0xBF, 0x87, 0x7F, 0x6B, 0x01, 0xE1, 0x63, 0x97, 0xF2, 0xFD, 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0x71, 0x64, 0x7F, 0x4D, 0xF7, 0x57, 0x4F, 0xD8, 0x5F, 0x34, 0x69, 0x58, 0x0B, - 0xE7, 0xB5, 0xAB, 0x8A, 0x4D, 0x6A, 0x83, 0xFB, 0xC4, 0xA7, 0x70, 0x3D, 0x6F, 0xB3, 0xCC, 0xB6, - 0x1A, 0xE4, 0x5F, 0x60, 0xD4, 0x31, 0xBA, 0x95, 0x2F, 0x92, 0xF4, 0x81, 0x7B, 0x18, 0x5B, 0x17, - 0x54, 0x26, 0x70, 0x49, 0xD5, 0x87, 0x34, 0xB9, 0xD3, 0x9C, 0x2F, 0x39, 0xC3, 0xB7, 0x3C, 0xA8, - 0x03, 0xE4, 0x37, 0x9C, 0x72, 0x39, 0xB0, 0xBF, 0x07, 0x5D, 0x33, 0x2A, 0x41, 0x79, 0xB1, 0x26, - 0x9B, 0xE6, 0x7C, 0x02, 0x82, 0x01, 0x70, 0xB1, 0xA3, 0x48, 0xCD, 0x2B, 0xCB, 0x98, 0x9B, 0x57, - 0x96, 0x54, 0xE2, 0x5F, 0x59, 0xCC, 0xDB, 0x9F, 0xFC, 0xDB, 0x4C, 0xF9, 0x7F, 0x5B, 0x28, 0x36, - 0x32, 0xF9, 0xE1, 0x09, 0xF7, 0x56, 0x3F, 0x45, 0xAD, 0x47, 0x51, 0xBB, 0xF7, 0xFF, 0x17, 0x53, - 0xE8, 0x9D, 0x36, 0x92, 0x29, 0x00, 0x00 -}; - -#define SPIFFS_MAXLENGTH_FILEPATH 32 -const char *excludeListFile = "/.exclude.files"; - -typedef struct ExcludeListS { - char *item; - ExcludeListS *next; -} ExcludeList; - -static ExcludeList *excludes = NULL; - -static bool matchWild(const char *pattern, const char *testee) { - const char *nxPat = NULL, *nxTst = NULL; - - while (*testee) { - if (( *pattern == '?' ) || (*pattern == *testee)){ - pattern++;testee++; - continue; - } - if (*pattern=='*'){ - nxPat=pattern++; nxTst=testee; - continue; - } - if (nxPat){ - pattern = nxPat+1; testee=++nxTst; - continue; - } - return false; - } - while (*pattern=='*'){pattern++;} - return (*pattern == 0); -} - -static bool addExclude(const char *item){ - size_t len = strlen(item); - if(!len){ - return false; - } - ExcludeList *e = (ExcludeList *)malloc(sizeof(ExcludeList)); - if(!e){ - return false; - } - e->item = (char *)malloc(len+1); - if(!e->item){ - free(e); - return false; - } - memcpy(e->item, item, len+1); - e->next = excludes; - excludes = e; - return true; -} - -static void loadExcludeList(fs::FS &_fs, const char *filename){ - static char linebuf[SPIFFS_MAXLENGTH_FILEPATH]; - fs::File excludeFile=_fs.open(filename, "r"); - if(!excludeFile){ - //addExclude("/*.js.gz"); - return; - } -#ifdef ESP32 - if(excludeFile.isDirectory()){ - excludeFile.close(); - return; - } -#endif - if (excludeFile.size() > 0){ - uint8_t idx; - bool isOverflowed = false; - while (excludeFile.available()){ - linebuf[0] = '\0'; - idx = 0; - int lastChar; - do { - lastChar = excludeFile.read(); - if(lastChar != '\r'){ - linebuf[idx++] = (char) lastChar; - } - } while ((lastChar >= 0) && (lastChar != '\n') && (idx < SPIFFS_MAXLENGTH_FILEPATH)); - - if(isOverflowed){ - isOverflowed = (lastChar != '\n'); - continue; - } - isOverflowed = (idx >= SPIFFS_MAXLENGTH_FILEPATH); - linebuf[idx-1] = '\0'; - if(!addExclude(linebuf)){ - excludeFile.close(); - return; - } - } - } - excludeFile.close(); -} - -static bool isExcluded(fs::FS &_fs, const char *filename) { - if(excludes == NULL){ - loadExcludeList(_fs, excludeListFile); - } - ExcludeList *e = excludes; - while(e){ - if (matchWild(e->item, filename)){ - return true; - } - e = e->next; - } - return false; -} - -// WEB HANDLER IMPLEMENTATION - -#ifdef ESP32 -SPIFFSEditor::SPIFFSEditor(const fs::FS& fs, const String& username, const String& password) -#else -SPIFFSEditor::SPIFFSEditor(const String& username, const String& password, const fs::FS& fs) -#endif -:_fs(fs) -,_username(username) -,_password(password) -,_authenticated(false) -,_startTime(0) -{} - -bool SPIFFSEditor::canHandle(AsyncWebServerRequest *request){ - if(request->url().equalsIgnoreCase("/edit")){ - if(request->method() == HTTP_GET){ - if(request->hasParam("list")) - return true; - if(request->hasParam("edit")){ - request->_tempFile = _fs.open(request->arg("edit"), "r"); - if(!request->_tempFile){ - return false; - } -#ifdef ESP32 - if(request->_tempFile.isDirectory()){ - request->_tempFile.close(); - return false; - } -#endif - } - if(request->hasParam("download")){ - request->_tempFile = _fs.open(request->arg("download"), "r"); - if(!request->_tempFile){ - return false; - } -#ifdef ESP32 - if(request->_tempFile.isDirectory()){ - request->_tempFile.close(); - return false; - } -#endif - } - request->addInterestingHeader("If-Modified-Since"); - return true; - } - else if(request->method() == HTTP_POST) - return true; - else if(request->method() == HTTP_DELETE) - return true; - else if(request->method() == HTTP_PUT) - return true; - - } - return false; -} - - -void SPIFFSEditor::handleRequest(AsyncWebServerRequest *request){ - if(_username.length() && _password.length() && !request->authenticate(_username.c_str(), _password.c_str())) - return request->requestAuthentication(); - - if(request->method() == HTTP_GET){ - if(request->hasParam("list")){ - String path = request->getParam("list")->value(); -#ifdef ESP32 - File dir = _fs.open(path); -#else - Dir dir = _fs.openDir(path); -#endif - path = String(); - String output = "["; -#ifdef ESP32 - File entry = dir.openNextFile(); - while(entry){ -#else - while(dir.next()){ - fs::File entry = dir.openFile("r"); -#endif - if (isExcluded(_fs, entry.name())) { -#ifdef ESP32 - entry = dir.openNextFile(); -#endif - continue; - } - if (output != "[") output += ','; - output += "{\"type\":\""; - output += "file"; - output += "\",\"name\":\""; - output += String(entry.name()); - output += "\",\"size\":"; - output += String(entry.size()); - output += "}"; -#ifdef ESP32 - entry = dir.openNextFile(); -#else - entry.close(); -#endif - } -#ifdef ESP32 - dir.close(); -#endif - output += "]"; - request->send(200, "application/json", output); - output = String(); - } - else if(request->hasParam("edit") || request->hasParam("download")){ - request->send(request->_tempFile, request->_tempFile.name(), String(), request->hasParam("download")); - } - else { - const char * buildTime = __DATE__ " " __TIME__ " GMT"; - if (request->header("If-Modified-Since").equals(buildTime)) { - request->send(304); - } else { - AsyncWebServerResponse *response = request->beginResponse_P(200, "text/html", edit_htm_gz, edit_htm_gz_len); - response->addHeader("Content-Encoding", "gzip"); - response->addHeader("Last-Modified", buildTime); - request->send(response); - } - } - } else if(request->method() == HTTP_DELETE){ - if(request->hasParam("path", true)){ - _fs.remove(request->getParam("path", true)->value()); - request->send(200, "", "DELETE: "+request->getParam("path", true)->value()); - } else - request->send(404); - } else if(request->method() == HTTP_POST){ - if(request->hasParam("data", true, true) && _fs.exists(request->getParam("data", true, true)->value())) - request->send(200, "", "UPLOADED: "+request->getParam("data", true, true)->value()); - else - request->send(500); - } else if(request->method() == HTTP_PUT){ - if(request->hasParam("path", true)){ - String filename = request->getParam("path", true)->value(); - if(_fs.exists(filename)){ - request->send(200); - } else { - fs::File f = _fs.open(filename, "w"); - if(f){ - f.write((uint8_t)0x00); - f.close(); - request->send(200, "", "CREATE: "+filename); - } else { - request->send(500); - } - } - } else - request->send(400); - } -} - -void SPIFFSEditor::handleUpload(AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final){ - if(!index){ - if(!_username.length() || request->authenticate(_username.c_str(),_password.c_str())){ - _authenticated = true; - request->_tempFile = _fs.open(filename, "w"); - _startTime = millis(); - } - } - if(_authenticated && request->_tempFile){ - if(len){ - request->_tempFile.write(data,len); - } - if(final){ - request->_tempFile.close(); - } - } -} diff --git a/src/SPIFFSEditor.h b/src/SPIFFSEditor.h deleted file mode 100644 index 3586429e1..000000000 --- a/src/SPIFFSEditor.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef SPIFFSEditor_H_ -#define SPIFFSEditor_H_ -#include - -class SPIFFSEditor: public AsyncWebHandler { - private: - fs::FS _fs; - String _username; - String _password; - bool _authenticated; - uint32_t _startTime; - public: -#ifdef ESP32 - SPIFFSEditor(const fs::FS& fs, const String& username=String(), const String& password=String()); -#else - SPIFFSEditor(const String& username=String(), const String& password=String(), const fs::FS& fs=SPIFFS); -#endif - virtual bool canHandle(AsyncWebServerRequest *request) override final; - virtual void handleRequest(AsyncWebServerRequest *request) override final; - virtual void handleUpload(AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final) override final; - virtual bool isRequestHandlerTrivial() override final {return false;} -}; - -#endif diff --git a/src/StringArray.h b/src/StringArray.h deleted file mode 100644 index 4c0aa7019..000000000 --- a/src/StringArray.h +++ /dev/null @@ -1,193 +0,0 @@ -/* - Asynchronous WebServer library for Espressif MCUs - - Copyright (c) 2016 Hristo Gochkov. All rights reserved. - This file is part of the esp8266 core for Arduino environment. - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -*/ -#ifndef STRINGARRAY_H_ -#define STRINGARRAY_H_ - -#include "stddef.h" -#include "WString.h" - -template -class LinkedListNode { - T _value; - public: - LinkedListNode* next; - LinkedListNode(const T val): _value(val), next(nullptr) {} - ~LinkedListNode(){} - const T& value() const { return _value; }; - T& value(){ return _value; } -}; - -template class Item = LinkedListNode> -class LinkedList { - public: - typedef Item ItemType; - typedef std::function OnRemove; - typedef std::function Predicate; - private: - ItemType* _root; - OnRemove _onRemove; - - class Iterator { - ItemType* _node; - public: - Iterator(ItemType* current = nullptr) : _node(current) {} - Iterator(const Iterator& i) : _node(i._node) {} - Iterator& operator ++() { _node = _node->next; return *this; } - bool operator != (const Iterator& i) const { return _node != i._node; } - const T& operator * () const { return _node->value(); } - const T* operator -> () const { return &_node->value(); } - }; - - public: - typedef const Iterator ConstIterator; - ConstIterator begin() const { return ConstIterator(_root); } - ConstIterator end() const { return ConstIterator(nullptr); } - - LinkedList(OnRemove onRemove) : _root(nullptr), _onRemove(onRemove) {} - ~LinkedList(){} - void add(const T& t){ - auto it = new ItemType(t); - if(!_root){ - _root = it; - } else { - auto i = _root; - while(i->next) i = i->next; - i->next = it; - } - } - T& front() const { - return _root->value(); - } - - bool isEmpty() const { - return _root == nullptr; - } - size_t length() const { - size_t i = 0; - auto it = _root; - while(it){ - i++; - it = it->next; - } - return i; - } - size_t count_if(Predicate predicate) const { - size_t i = 0; - auto it = _root; - while(it){ - if (!predicate){ - i++; - } - else if (predicate(it->value())) { - i++; - } - it = it->next; - } - return i; - } - const T* nth(size_t N) const { - size_t i = 0; - auto it = _root; - while(it){ - if(i++ == N) - return &(it->value()); - it = it->next; - } - return nullptr; - } - bool remove(const T& t){ - auto it = _root; - auto pit = _root; - while(it){ - if(it->value() == t){ - if(it == _root){ - _root = _root->next; - } else { - pit->next = it->next; - } - - if (_onRemove) { - _onRemove(it->value()); - } - - delete it; - return true; - } - pit = it; - it = it->next; - } - return false; - } - bool remove_first(Predicate predicate){ - auto it = _root; - auto pit = _root; - while(it){ - if(predicate(it->value())){ - if(it == _root){ - _root = _root->next; - } else { - pit->next = it->next; - } - if (_onRemove) { - _onRemove(it->value()); - } - delete it; - return true; - } - pit = it; - it = it->next; - } - return false; - } - - void free(){ - while(_root != nullptr){ - auto it = _root; - _root = _root->next; - if (_onRemove) { - _onRemove(it->value()); - } - delete it; - } - _root = nullptr; - } -}; - - -class StringArray : public LinkedList { -public: - - StringArray() : LinkedList(nullptr) {} - - bool containsIgnoreCase(const String& str){ - for (const auto& s : *this) { - if (str.equalsIgnoreCase(s)) { - return true; - } - } - return false; - } -}; - - - - -#endif /* STRINGARRAY_H_ */ diff --git a/src/WebAuthentication.cpp b/src/WebAuthentication.cpp index 2feca5420..ebcc38e55 100644 --- a/src/WebAuthentication.cpp +++ b/src/WebAuthentication.cpp @@ -20,216 +20,214 @@ */ #include "WebAuthentication.h" #include -#ifdef ESP32 -#include "mbedtls/md5.h" +#if defined(ESP32) || defined(TARGET_RP2040) + #include #else -#include "md5.h" + #include "md5.h" #endif +#include "literals.h" +using namespace asyncsrv; // Basic Auth hash = base64("username:password") -bool checkBasicAuthentication(const char * hash, const char * username, const char * password){ - if(username == NULL || password == NULL || hash == NULL) +bool checkBasicAuthentication(const char* hash, const char* username, const char* password) { + if (username == NULL || password == NULL || hash == NULL) return false; + return generateBasicHash(username, password).equalsIgnoreCase(hash); +} - size_t toencodeLen = strlen(username)+strlen(password)+1; - size_t encodedLen = base64_encode_expected_len(toencodeLen); - if(strlen(hash) != encodedLen) - return false; +String generateBasicHash(const char* username, const char* password) { + if (username == NULL || password == NULL) + return emptyString; - char *toencode = new char[toencodeLen+1]; - if(toencode == NULL){ - return false; + size_t toencodeLen = strlen(username) + strlen(password) + 1; + + char* toencode = new char[toencodeLen + 1]; + if (toencode == NULL) { + return emptyString; } - char *encoded = new char[base64_encode_expected_len(toencodeLen)+1]; - if(encoded == NULL){ + char* encoded = new char[base64_encode_expected_len(toencodeLen) + 1]; + if (encoded == NULL) { delete[] toencode; - return false; + return emptyString; } - sprintf(toencode, "%s:%s", username, password); - if(base64_encode_chars(toencode, toencodeLen, encoded) > 0 && memcmp(hash, encoded, encodedLen) == 0){ + sprintf_P(toencode, PSTR("%s:%s"), username, password); + if (base64_encode_chars(toencode, toencodeLen, encoded) > 0) { + String res = String(encoded); delete[] toencode; delete[] encoded; - return true; + return res; } delete[] toencode; delete[] encoded; - return false; + return emptyString; } -static bool getMD5(uint8_t * data, uint16_t len, char * output){//33 bytes or more -#ifdef ESP32 - mbedtls_md5_context _ctx; +static bool getMD5(uint8_t* data, uint16_t len, char* output) { // 33 bytes or more +#if defined(ESP32) || defined(TARGET_RP2040) + MD5Builder md5; + md5.begin(); + md5.add(data, len); + md5.calculate(); + md5.getChars(output); #else - md5_context_t _ctx; -#endif - uint8_t i; - uint8_t * _buf = (uint8_t*)malloc(16); - if(_buf == NULL) + md5_context_t _ctx; + + uint8_t* _buf = (uint8_t*)malloc(16); + if (_buf == NULL) return false; memset(_buf, 0x00, 16); -#ifdef ESP32 - mbedtls_md5_init(&_ctx); - mbedtls_md5_starts(&_ctx); - mbedtls_md5_update(&_ctx, data, len); - mbedtls_md5_finish(&_ctx, _buf); -#else + MD5Init(&_ctx); MD5Update(&_ctx, data, len); MD5Final(_buf, &_ctx); -#endif - for(i = 0; i < 16; i++) { - sprintf(output + (i * 2), "%02x", _buf[i]); + + for (uint8_t i = 0; i < 16; i++) { + sprintf_P(output + (i * 2), PSTR("%02x"), _buf[i]); } + free(_buf); +#endif return true; } -static String genRandomMD5(){ +String genRandomMD5() { #ifdef ESP8266 uint32_t r = RANDOM_REG32; #else uint32_t r = rand(); #endif - char * out = (char*)malloc(33); - if(out == NULL || !getMD5((uint8_t*)(&r), 4, out)) - return ""; + char* out = (char*)malloc(33); + if (out == NULL || !getMD5((uint8_t*)(&r), 4, out)) + return emptyString; String res = String(out); free(out); return res; } -static String stringMD5(const String& in){ - char * out = (char*)malloc(33); - if(out == NULL || !getMD5((uint8_t*)(in.c_str()), in.length(), out)) - return ""; +static String stringMD5(const String& in) { + char* out = (char*)malloc(33); + if (out == NULL || !getMD5((uint8_t*)(in.c_str()), in.length(), out)) + return emptyString; String res = String(out); free(out); return res; } -String generateDigestHash(const char * username, const char * password, const char * realm){ - if(username == NULL || password == NULL || realm == NULL){ - return ""; +String generateDigestHash(const char* username, const char* password, const char* realm) { + if (username == NULL || password == NULL || realm == NULL) { + return emptyString; } - char * out = (char*)malloc(33); - String res = String(username); - res.concat(":"); - res.concat(realm); - res.concat(":"); - String in = res; + char* out = (char*)malloc(33); + + String in; + in.reserve(strlen(username) + strlen(realm) + strlen(password) + 2); + in.concat(username); + in.concat(':'); + in.concat(realm); + in.concat(':'); in.concat(password); - if(out == NULL || !getMD5((uint8_t*)(in.c_str()), in.length(), out)) - return ""; - res.concat(out); - free(out); - return res; -} -String requestDigestAuthentication(const char * realm){ - String header = "realm=\""; - if(realm == NULL) - header.concat("asyncesp"); - else - header.concat(realm); - header.concat( "\", qop=\"auth\", nonce=\""); - header.concat(genRandomMD5()); - header.concat("\", opaque=\""); - header.concat(genRandomMD5()); - header.concat("\""); - return header; + if (out == NULL || !getMD5((uint8_t*)(in.c_str()), in.length(), out)) + return emptyString; + + in = String(out); + free(out); + return in; } -bool checkDigestAuthentication(const char * header, const char * method, const char * username, const char * password, const char * realm, bool passwordIsHash, const char * nonce, const char * opaque, const char * uri){ - if(username == NULL || password == NULL || header == NULL || method == NULL){ - //os_printf("AUTH FAIL: missing requred fields\n"); +bool checkDigestAuthentication(const char* header, const char* method, const char* username, const char* password, const char* realm, bool passwordIsHash, const char* nonce, const char* opaque, const char* uri) +{ + if (username == NULL || password == NULL || header == NULL || method == NULL) { + // os_printf("AUTH FAIL: missing requred fields\n"); return false; } - String myHeader = String(header); - int nextBreak = myHeader.indexOf(","); - if(nextBreak < 0){ - //os_printf("AUTH FAIL: no variables\n"); + String myHeader(header); + int nextBreak = myHeader.indexOf(','); + if (nextBreak < 0) { + // os_printf("AUTH FAIL: no variables\n"); return false; } - String myUsername = String(); - String myRealm = String(); - String myNonce = String(); - String myUri = String(); - String myResponse = String(); - String myQop = String(); - String myNc = String(); - String myCnonce = String(); - - myHeader += ", "; + String myUsername; + String myRealm; + String myNonce; + String myUri; + String myResponse; + String myQop; + String myNc; + String myCnonce; + + myHeader += (char)0x2c; // ',' + myHeader += (char)0x20; // ' ' do { - String avLine = myHeader.substring(0, nextBreak); + String avLine(myHeader.substring(0, nextBreak)); avLine.trim(); - myHeader = myHeader.substring(nextBreak+1); - nextBreak = myHeader.indexOf(","); + myHeader = myHeader.substring(nextBreak + 1); + nextBreak = myHeader.indexOf(','); - int eqSign = avLine.indexOf("="); - if(eqSign < 0){ - //os_printf("AUTH FAIL: no = sign\n"); + int eqSign = avLine.indexOf('='); + if (eqSign < 0) { + // os_printf("AUTH FAIL: no = sign\n"); return false; } - String varName = avLine.substring(0, eqSign); + String varName(avLine.substring(0, eqSign)); avLine = avLine.substring(eqSign + 1); - if(avLine.startsWith("\"")){ + if (avLine.startsWith(String('"'))) { avLine = avLine.substring(1, avLine.length() - 1); } - if(varName.equals("username")){ - if(!avLine.equals(username)){ - //os_printf("AUTH FAIL: username\n"); + if (varName.equals(T_username)) { + if (!avLine.equals(username)) { + // os_printf("AUTH FAIL: username\n"); return false; } myUsername = avLine; - } else if(varName.equals("realm")){ - if(realm != NULL && !avLine.equals(realm)){ - //os_printf("AUTH FAIL: realm\n"); + } else if (varName.equals(T_realm)) { + if (realm != NULL && !avLine.equals(realm)) { + // os_printf("AUTH FAIL: realm\n"); return false; } myRealm = avLine; - } else if(varName.equals("nonce")){ - if(nonce != NULL && !avLine.equals(nonce)){ - //os_printf("AUTH FAIL: nonce\n"); + } else if (varName.equals(T_nonce)) { + if (nonce != NULL && !avLine.equals(nonce)) { + // os_printf("AUTH FAIL: nonce\n"); return false; } myNonce = avLine; - } else if(varName.equals("opaque")){ - if(opaque != NULL && !avLine.equals(opaque)){ - //os_printf("AUTH FAIL: opaque\n"); + } else if (varName.equals(T_opaque)) { + if (opaque != NULL && !avLine.equals(opaque)) { + // os_printf("AUTH FAIL: opaque\n"); return false; } - } else if(varName.equals("uri")){ - if(uri != NULL && !avLine.equals(uri)){ - //os_printf("AUTH FAIL: uri\n"); + } else if (varName.equals(T_uri)) { + if (uri != NULL && !avLine.equals(uri)) { + // os_printf("AUTH FAIL: uri\n"); return false; } myUri = avLine; - } else if(varName.equals("response")){ + } else if (varName.equals(T_response)) { myResponse = avLine; - } else if(varName.equals("qop")){ + } else if (varName.equals(T_qop)) { myQop = avLine; - } else if(varName.equals("nc")){ + } else if (varName.equals(T_nc)) { myNc = avLine; - } else if(varName.equals("cnonce")){ + } else if (varName.equals(T_cnonce)) { myCnonce = avLine; } - } while(nextBreak > 0); + } while (nextBreak > 0); - String ha1 = (passwordIsHash) ? String(password) : stringMD5(myUsername + ":" + myRealm + ":" + String(password)); - String ha2 = String(method) + ":" + myUri; - String response = ha1 + ":" + myNonce + ":" + myNc + ":" + myCnonce + ":" + myQop + ":" + stringMD5(ha2); + String ha1 = passwordIsHash ? password : stringMD5(myUsername + ':' + myRealm + ':' + password).c_str(); + String ha2 = stringMD5(String(method) + ':' + myUri); + String response = ha1 + ':' + myNonce + ':' + myNc + ':' + myCnonce + ':' + myQop + ':' + ha2; - if(myResponse.equals(stringMD5(response))){ - //os_printf("AUTH SUCCESS\n"); + if (myResponse.equals(stringMD5(response))) { + // os_printf("AUTH SUCCESS\n"); return true; } - //os_printf("AUTH FAIL: password\n"); + // os_printf("AUTH FAIL: password\n"); return false; } diff --git a/src/WebAuthentication.h b/src/WebAuthentication.h index ff68265d9..68bed0c28 100644 --- a/src/WebAuthentication.h +++ b/src/WebAuthentication.h @@ -24,11 +24,15 @@ #include "Arduino.h" -bool checkBasicAuthentication(const char * header, const char * username, const char * password); -String requestDigestAuthentication(const char * realm); -bool checkDigestAuthentication(const char * header, const char * method, const char * username, const char * password, const char * realm, bool passwordIsHash, const char * nonce, const char * opaque, const char * uri); +bool checkBasicAuthentication(const char* header, const char* username, const char* password); -//for storing hashed versions on the device that can be authenticated against -String generateDigestHash(const char * username, const char * password, const char * realm); +bool checkDigestAuthentication(const char* header, const char* method, const char* username, const char* password, const char* realm, bool passwordIsHash, const char* nonce, const char* opaque, const char* uri); + +// for storing hashed versions on the device that can be authenticated against +String generateDigestHash(const char* username, const char* password, const char* realm); + +String generateBasicHash(const char* username, const char* password); + +String genRandomMD5(); #endif diff --git a/src/WebHandlerImpl.h b/src/WebHandlerImpl.h index 65b580f05..134006f63 100644 --- a/src/WebHandlerImpl.h +++ b/src/WebHandlerImpl.h @@ -21,17 +21,23 @@ #ifndef ASYNCWEBSERVERHANDLERIMPL_H_ #define ASYNCWEBSERVERHANDLERIMPL_H_ +#include +#ifdef ASYNCWEBSERVER_REGEX + #include +#endif #include "stddef.h" #include -class AsyncStaticWebHandler: public AsyncWebHandler { - using File = fs::File; - using FS = fs::FS; +class AsyncStaticWebHandler : public AsyncWebHandler { + using File = fs::File; + using FS = fs::FS; + private: - bool _getFile(AsyncWebServerRequest *request); - bool _fileExists(AsyncWebServerRequest *request, const String& path); + bool _getFile(AsyncWebServerRequest* request) const; + bool _searchFile(AsyncWebServerRequest* request, const String& path); uint8_t _countBits(const uint8_t value) const; + protected: FS _fs; String _uri; @@ -41,25 +47,33 @@ class AsyncStaticWebHandler: public AsyncWebHandler { String _last_modified; AwsTemplateProcessor _callback; bool _isDir; - bool _gzipFirst; - uint8_t _gzipStats; + bool _tryGzipFirst = true; + public: AsyncStaticWebHandler(const char* uri, FS& fs, const char* path, const char* cache_control); - virtual bool canHandle(AsyncWebServerRequest *request) override final; - virtual void handleRequest(AsyncWebServerRequest *request) override final; + bool canHandle(AsyncWebServerRequest* request) const override final; + void handleRequest(AsyncWebServerRequest* request) override final; + AsyncStaticWebHandler& setTryGzipFirst(bool value); AsyncStaticWebHandler& setIsDir(bool isDir); AsyncStaticWebHandler& setDefaultFile(const char* filename); AsyncStaticWebHandler& setCacheControl(const char* cache_control); + + /** + * @brief Set the Last-Modified time for the object + * + * @param last_modified + * @return AsyncStaticWebHandler& + */ AsyncStaticWebHandler& setLastModified(const char* last_modified); AsyncStaticWebHandler& setLastModified(struct tm* last_modified); - #ifdef ESP8266 AsyncStaticWebHandler& setLastModified(time_t last_modified); - AsyncStaticWebHandler& setLastModified(); //sets to current time. Make sure sntp is runing and time is updated - #endif - AsyncStaticWebHandler& setTemplateProcessor(AwsTemplateProcessor newCallback) {_callback = newCallback; return *this;} + // sets to current time. Make sure sntp is runing and time is updated + AsyncStaticWebHandler& setLastModified(); + + AsyncStaticWebHandler& setTemplateProcessor(AwsTemplateProcessor newCallback); }; -class AsyncCallbackWebHandler: public AsyncWebHandler { +class AsyncCallbackWebHandler : public AsyncWebHandler { private: protected: String _uri; @@ -67,50 +81,21 @@ class AsyncCallbackWebHandler: public AsyncWebHandler { ArRequestHandlerFunction _onRequest; ArUploadHandlerFunction _onUpload; ArBodyHandlerFunction _onBody; + bool _isRegex; + public: - AsyncCallbackWebHandler() : _uri(), _method(HTTP_ANY), _onRequest(NULL), _onUpload(NULL), _onBody(NULL){} - void setUri(const String& uri){ _uri = uri; } - void setMethod(WebRequestMethodComposite method){ _method = method; } - void onRequest(ArRequestHandlerFunction fn){ _onRequest = fn; } - void onUpload(ArUploadHandlerFunction fn){ _onUpload = fn; } - void onBody(ArBodyHandlerFunction fn){ _onBody = fn; } - - virtual bool canHandle(AsyncWebServerRequest *request) override final{ - - if(!_onRequest) - return false; - - if(!(_method & request->method())) - return false; - - if (_uri.length() && _uri.endsWith("*")) { - String uriTemplate = String(_uri); - uriTemplate = uriTemplate.substring(0, uriTemplate.length() - 1); - if (!request->url().startsWith(uriTemplate)) - return false; - } - else if(_uri.length() && (_uri != request->url() && !request->url().startsWith(_uri+"/"))) - return false; - - request->addInterestingHeader("ANY"); - return true; - } - - virtual void handleRequest(AsyncWebServerRequest *request) override final { - if(_onRequest) - _onRequest(request); - else - request->send(500); - } - virtual void handleUpload(AsyncWebServerRequest *request, const String& filename, size_t index, uint8_t *data, size_t len, bool final) override final { - if(_onUpload) - _onUpload(request, filename, index, data, len, final); - } - virtual void handleBody(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) override final { - if(_onBody) - _onBody(request, data, len, index, total); - } - virtual bool isRequestHandlerTrivial() override final {return _onRequest ? false : true;} + AsyncCallbackWebHandler() : _uri(), _method(HTTP_ANY), _onRequest(NULL), _onUpload(NULL), _onBody(NULL), _isRegex(false) {} + void setUri(const String& uri); + void setMethod(WebRequestMethodComposite method) { _method = method; } + void onRequest(ArRequestHandlerFunction fn) { _onRequest = fn; } + void onUpload(ArUploadHandlerFunction fn) { _onUpload = fn; } + void onBody(ArBodyHandlerFunction fn) { _onBody = fn; } + + bool canHandle(AsyncWebServerRequest* request) const override final; + void handleRequest(AsyncWebServerRequest* request) override final; + void handleUpload(AsyncWebServerRequest* request, const String& filename, size_t index, uint8_t* data, size_t len, bool final) override final; + void handleBody(AsyncWebServerRequest* request, uint8_t* data, size_t len, size_t index, size_t total) override final; + bool isRequestHandlerTrivial() const override final { return !_onRequest; } }; #endif /* ASYNCWEBSERVERHANDLERIMPL_H_ */ diff --git a/src/WebHandlers.cpp b/src/WebHandlers.cpp index 1f435e68a..44a460149 100644 --- a/src/WebHandlers.cpp +++ b/src/WebHandlers.cpp @@ -21,99 +21,110 @@ #include "ESPAsyncWebServer.h" #include "WebHandlerImpl.h" +using namespace asyncsrv; + +AsyncWebHandler& AsyncWebHandler::setFilter(ArRequestFilterFunction fn) { + _filter = fn; + return *this; +} +AsyncWebHandler& AsyncWebHandler::setAuthentication(const char* username, const char* password, AsyncAuthType authMethod) { + if (!_authMiddleware) { + _authMiddleware = new AsyncAuthenticationMiddleware(); + _authMiddleware->_freeOnRemoval = true; + addMiddleware(_authMiddleware); + } + _authMiddleware->setUsername(username); + _authMiddleware->setPassword(password); + _authMiddleware->setAuthType(authMethod); + return *this; +}; + AsyncStaticWebHandler::AsyncStaticWebHandler(const char* uri, FS& fs, const char* path, const char* cache_control) - : _fs(fs), _uri(uri), _path(path), _default_file("index.htm"), _cache_control(cache_control), _last_modified(""), _callback(nullptr) -{ + : _fs(fs), _uri(uri), _path(path), _default_file(F("index.htm")), _cache_control(cache_control), _last_modified(), _callback(nullptr) { // Ensure leading '/' - if (_uri.length() == 0 || _uri[0] != '/') _uri = "/" + _uri; - if (_path.length() == 0 || _path[0] != '/') _path = "/" + _path; + if (_uri.length() == 0 || _uri[0] != '/') + _uri = String('/') + _uri; + if (_path.length() == 0 || _path[0] != '/') + _path = String('/') + _path; // If path ends with '/' we assume a hint that this is a directory to improve performance. // However - if it does not end with '/' we, can't assume a file, path can still be a directory. - _isDir = _path[_path.length()-1] == '/'; + _isDir = _path[_path.length() - 1] == '/'; // Remove the trailing '/' so we can handle default file // Notice that root will be "" not "/" - if (_uri[_uri.length()-1] == '/') _uri = _uri.substring(0, _uri.length()-1); - if (_path[_path.length()-1] == '/') _path = _path.substring(0, _path.length()-1); + if (_uri[_uri.length() - 1] == '/') + _uri = _uri.substring(0, _uri.length() - 1); + if (_path[_path.length() - 1] == '/') + _path = _path.substring(0, _path.length() - 1); +} - // Reset stats - _gzipFirst = false; - _gzipStats = 0xF8; +AsyncStaticWebHandler& AsyncStaticWebHandler::setTryGzipFirst(bool value) { + _tryGzipFirst = value; + return *this; } -AsyncStaticWebHandler& AsyncStaticWebHandler::setIsDir(bool isDir){ +AsyncStaticWebHandler& AsyncStaticWebHandler::setIsDir(bool isDir) { _isDir = isDir; return *this; } -AsyncStaticWebHandler& AsyncStaticWebHandler::setDefaultFile(const char* filename){ - _default_file = String(filename); +AsyncStaticWebHandler& AsyncStaticWebHandler::setDefaultFile(const char* filename) { + _default_file = filename; return *this; } -AsyncStaticWebHandler& AsyncStaticWebHandler::setCacheControl(const char* cache_control){ - _cache_control = String(cache_control); +AsyncStaticWebHandler& AsyncStaticWebHandler::setCacheControl(const char* cache_control) { + _cache_control = cache_control; return *this; } -AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(const char* last_modified){ - _last_modified = String(last_modified); +AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(const char* last_modified) { + _last_modified = last_modified; return *this; } -AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(struct tm* last_modified){ +AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(struct tm* last_modified) { char result[30]; - strftime (result,30,"%a, %d %b %Y %H:%M:%S %Z", last_modified); - return setLastModified((const char *)result); +#ifdef ESP8266 + auto formatP = PSTR("%a, %d %b %Y %H:%M:%S GMT"); + char format[strlen_P(formatP) + 1]; + strcpy_P(format, formatP); +#else + static constexpr const char* format = "%a, %d %b %Y %H:%M:%S GMT"; +#endif + + strftime(result, sizeof(result), format, last_modified); + _last_modified = result; + return *this; } -#ifdef ESP8266 -AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(time_t last_modified){ - return setLastModified((struct tm *)gmtime(&last_modified)); +AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(time_t last_modified) { + return setLastModified((struct tm*)gmtime(&last_modified)); } -AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified(){ +AsyncStaticWebHandler& AsyncStaticWebHandler::setLastModified() { time_t last_modified; - if(time(&last_modified) == 0) //time is not yet set + if (time(&last_modified) == 0) // time is not yet set return *this; return setLastModified(last_modified); } -#endif -bool AsyncStaticWebHandler::canHandle(AsyncWebServerRequest *request){ - if(request->method() != HTTP_GET - || !request->url().startsWith(_uri) - || !request->isExpectedRequestedConnType(RCT_DEFAULT, RCT_HTTP) - ){ - return false; - } - if (_getFile(request)) { - // We interested in "If-Modified-Since" header to check if file was modified - if (_last_modified.length()) - request->addInterestingHeader("If-Modified-Since"); - - if(_cache_control.length()) - request->addInterestingHeader("If-None-Match"); - - DEBUGF("[AsyncStaticWebHandler::canHandle] TRUE\n"); - return true; - } - return false; +bool AsyncStaticWebHandler::canHandle(AsyncWebServerRequest* request) const { + return request->isHTTP() && request->method() == HTTP_GET && request->url().startsWith(_uri) && _getFile(request); } -bool AsyncStaticWebHandler::_getFile(AsyncWebServerRequest *request) -{ +bool AsyncStaticWebHandler::_getFile(AsyncWebServerRequest* request) const { // Remove the found uri String path = request->url().substring(_uri.length()); // We can skip the file check and look for default if request is to the root of a directory or that request path ends with '/' - bool canSkipFileCheck = (_isDir && path.length() == 0) || (path.length() && path[path.length()-1] == '/'); + bool canSkipFileCheck = (_isDir && path.length() == 0) || (path.length() && path[path.length() - 1] == '/'); path = _path + path; // Do we have a file or .gz file - if (!canSkipFileCheck && _fileExists(request, path)) + if (!canSkipFileCheck && const_cast(this)->_searchFile(request, path)) return true; // Can't handle if not default file @@ -121,39 +132,46 @@ bool AsyncStaticWebHandler::_getFile(AsyncWebServerRequest *request) return false; // Try to add default file, ensure there is a trailing '/' ot the path. - if (path.length() == 0 || path[path.length()-1] != '/') - path += "/"; + if (path.length() == 0 || path[path.length() - 1] != '/') + path += String('/'); path += _default_file; - return _fileExists(request, path); + return const_cast(this)->_searchFile(request, path); } #ifdef ESP32 -#define FILE_IS_REAL(f) (f == true && !f.isDirectory()) + #define FILE_IS_REAL(f) (f == true && !f.isDirectory()) #else -#define FILE_IS_REAL(f) (f == true) + #define FILE_IS_REAL(f) (f == true) #endif -bool AsyncStaticWebHandler::_fileExists(AsyncWebServerRequest *request, const String& path) -{ +bool AsyncStaticWebHandler::_searchFile(AsyncWebServerRequest* request, const String& path) { bool fileFound = false; bool gzipFound = false; - String gzip = path + ".gz"; + String gzip = path + T__gz; - if (_gzipFirst) { - request->_tempFile = _fs.open(gzip, "r"); - gzipFound = FILE_IS_REAL(request->_tempFile); - if (!gzipFound){ - request->_tempFile = _fs.open(path, "r"); - fileFound = FILE_IS_REAL(request->_tempFile); + if (_tryGzipFirst) { + if (_fs.exists(gzip)) { + request->_tempFile = _fs.open(gzip, fs::FileOpenMode::read); + gzipFound = FILE_IS_REAL(request->_tempFile); + } + if (!gzipFound) { + if (_fs.exists(path)) { + request->_tempFile = _fs.open(path, fs::FileOpenMode::read); + fileFound = FILE_IS_REAL(request->_tempFile); + } } } else { - request->_tempFile = _fs.open(path, "r"); - fileFound = FILE_IS_REAL(request->_tempFile); - if (!fileFound){ - request->_tempFile = _fs.open(gzip, "r"); - gzipFound = FILE_IS_REAL(request->_tempFile); + if (_fs.exists(path)) { + request->_tempFile = _fs.open(path, fs::FileOpenMode::read); + fileFound = FILE_IS_REAL(request->_tempFile); + } + if (!fileFound) { + if (_fs.exists(gzip)) { + request->_tempFile = _fs.open(gzip, fs::FileOpenMode::read); + gzipFound = FILE_IS_REAL(request->_tempFile); + } } } @@ -162,59 +180,134 @@ bool AsyncStaticWebHandler::_fileExists(AsyncWebServerRequest *request, const St if (found) { // Extract the file name from the path and keep it in _tempObject size_t pathLen = path.length(); - char * _tempPath = (char*)malloc(pathLen+1); - snprintf(_tempPath, pathLen+1, "%s", path.c_str()); + char* _tempPath = (char*)malloc(pathLen + 1); + snprintf_P(_tempPath, pathLen + 1, PSTR("%s"), path.c_str()); request->_tempObject = (void*)_tempPath; - - // Calculate gzip statistic - _gzipStats = (_gzipStats << 1) + (gzipFound ? 1 : 0); - if (_gzipStats == 0x00) _gzipFirst = false; // All files are not gzip - else if (_gzipStats == 0xFF) _gzipFirst = true; // All files are gzip - else _gzipFirst = _countBits(_gzipStats) > 4; // IF we have more gzip files - try gzip first } return found; } -uint8_t AsyncStaticWebHandler::_countBits(const uint8_t value) const -{ +uint8_t AsyncStaticWebHandler::_countBits(const uint8_t value) const { uint8_t w = value; uint8_t n; - for (n=0; w!=0; n++) w&=w-1; + for (n = 0; w != 0; n++) + w &= w - 1; return n; } -void AsyncStaticWebHandler::handleRequest(AsyncWebServerRequest *request) -{ +void AsyncStaticWebHandler::handleRequest(AsyncWebServerRequest* request) { // Get the filename from request->_tempObject and free it - String filename = String((char*)request->_tempObject); + String filename((char*)request->_tempObject); free(request->_tempObject); request->_tempObject = NULL; - if((_username != "" && _password != "") && !request->authenticate(_username.c_str(), _password.c_str())) - return request->requestAuthentication(); - if (request->_tempFile == true) { - String etag = String(request->_tempFile.size()); - if (_last_modified.length() && _last_modified == request->header("If-Modified-Since")) { - request->_tempFile.close(); - request->send(304); // Not modified - } else if (_cache_control.length() && request->hasHeader("If-None-Match") && request->header("If-None-Match").equals(etag)) { + if (request->_tempFile != true){ + request->send(404); + return; + } + + time_t lw = request->_tempFile.getLastWrite(); // get last file mod time (if supported by FS) + // set etag to lastmod timestamp if available, otherwise to size + String etag; + if (lw) { + setLastModified(lw); +#if defined(TARGET_RP2040) + // time_t == long long int + constexpr size_t len = 1 + 8 * sizeof(time_t); + char buf[len]; + char* ret = lltoa(lw ^ request->_tempFile.size(), buf, len, 10); + etag = ret ? String(ret) : String(request->_tempFile.size()); +#else + etag = lw ^ request->_tempFile.size(); // etag combines file size and lastmod timestamp +#endif + } else { + etag = request->_tempFile.size(); + } + + bool not_modified = false; + + // if-none-match has precedence over if-modified-since + if (request->hasHeader(T_INM)) + not_modified = request->header(T_INM).equals(etag); + else if (_last_modified.length()) + not_modified = request->header(T_IMS).equals(_last_modified); + + AsyncWebServerResponse* response; + + if (not_modified){ request->_tempFile.close(); - AsyncWebServerResponse * response = new AsyncBasicResponse(304); // Not modified - response->addHeader("Cache-Control", _cache_control); - response->addHeader("ETag", etag); - request->send(response); + response = new AsyncBasicResponse(304); // Not modified } else { - AsyncWebServerResponse * response = new AsyncFileResponse(request->_tempFile, filename, String(), false, _callback); - if (_last_modified.length()) - response->addHeader("Last-Modified", _last_modified); - if (_cache_control.length()){ - response->addHeader("Cache-Control", _cache_control); - response->addHeader("ETag", etag); + response = new AsyncFileResponse(request->_tempFile, filename, emptyString, false, _callback); + } + + response->addHeader(T_ETag, etag.c_str()); + + if (_last_modified.length()) + response->addHeader(T_Last_Modified, _last_modified.c_str()); + if (_cache_control.length()) + response->addHeader(T_Cache_Control, _cache_control.c_str()); + + request->send(response); + +} + +AsyncStaticWebHandler& AsyncStaticWebHandler::setTemplateProcessor(AwsTemplateProcessor newCallback) { + _callback = newCallback; + return *this; +} + +void AsyncCallbackWebHandler::setUri(const String& uri) { + _uri = uri; + _isRegex = uri.startsWith("^") && uri.endsWith("$"); +} + +bool AsyncCallbackWebHandler::canHandle(AsyncWebServerRequest* request) const { + if (!_onRequest || !request->isHTTP() || !(_method & request->method())) + return false; + +#ifdef ASYNCWEBSERVER_REGEX + if (_isRegex) { + std::regex pattern(_uri.c_str()); + std::smatch matches; + std::string s(request->url().c_str()); + if (std::regex_search(s, matches, pattern)) { + for (size_t i = 1; i < matches.size(); ++i) { // start from 1 + request->_addPathParam(matches[i].str().c_str()); } - request->send(response); + } else { + return false; } - } else { - request->send(404); - } + } else +#endif + if (_uri.length() && _uri.startsWith("/*.")) { + String uriTemplate = String(_uri); + uriTemplate = uriTemplate.substring(uriTemplate.lastIndexOf(".")); + if (!request->url().endsWith(uriTemplate)) + return false; + } else if (_uri.length() && _uri.endsWith("*")) { + String uriTemplate = String(_uri); + uriTemplate = uriTemplate.substring(0, uriTemplate.length() - 1); + if (!request->url().startsWith(uriTemplate)) + return false; + } else if (_uri.length() && (_uri != request->url() && !request->url().startsWith(_uri + "/"))) + return false; + + return true; +} + +void AsyncCallbackWebHandler::handleRequest(AsyncWebServerRequest* request) { + if (_onRequest) + _onRequest(request); + else + request->send(500); +} +void AsyncCallbackWebHandler::handleUpload(AsyncWebServerRequest* request, const String& filename, size_t index, uint8_t* data, size_t len, bool final) { + if (_onUpload) + _onUpload(request, filename, index, data, len, final); } +void AsyncCallbackWebHandler::handleBody(AsyncWebServerRequest* request, uint8_t* data, size_t len, size_t index, size_t total) { + if (_onBody) + _onBody(request, data, len, index, total); +} \ No newline at end of file diff --git a/src/WebRequest.cpp b/src/WebRequest.cpp index dbcb92766..e96ec5f24 100644 --- a/src/WebRequest.cpp +++ b/src/WebRequest.cpp @@ -19,354 +19,366 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include "ESPAsyncWebServer.h" -#include "WebResponseImpl.h" #include "WebAuthentication.h" - -#ifndef ESP8266 -#define os_strlen strlen -#endif - -static const String SharedEmptyString = String(); +#include "WebResponseImpl.h" +#include "literals.h" +#include #define __is_param_char(c) ((c) && ((c) != '{') && ((c) != '[') && ((c) != '&') && ((c) != '=')) -enum { PARSE_REQ_START, PARSE_REQ_HEADERS, PARSE_REQ_BODY, PARSE_REQ_END, PARSE_REQ_FAIL }; +using namespace asyncsrv; + +enum { PARSE_REQ_START = 0, + PARSE_REQ_HEADERS = 1, + PARSE_REQ_BODY = 2, + PARSE_REQ_END = 3, + PARSE_REQ_FAIL = 4 }; AsyncWebServerRequest::AsyncWebServerRequest(AsyncWebServer* s, AsyncClient* c) - : _client(c) - , _server(s) - , _handler(NULL) - , _response(NULL) - , _temp() - , _parseState(0) - , _version(0) - , _method(HTTP_ANY) - , _url() - , _host() - , _contentType() - , _boundary() - , _authorization() - , _reqconntype(RCT_HTTP) - , _isDigest(false) - , _isMultipart(false) - , _isPlainPost(false) - , _expectingContinue(false) - , _contentLength(0) - , _parsedLength(0) - , _headers(LinkedList([](AsyncWebHeader *h){ delete h; })) - , _params(LinkedList([](AsyncWebParameter *p){ delete p; })) - , _multiParseState(0) - , _boundaryPosition(0) - , _itemStartIndex(0) - , _itemSize(0) - , _itemName() - , _itemFilename() - , _itemType() - , _itemValue() - , _itemBuffer(0) - , _itemBufferIndex(0) - , _itemIsFile(false) - , _tempObject(NULL) -{ - c->onError([](void *r, AsyncClient* c, int8_t error){ AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onError(error); }, this); - c->onAck([](void *r, AsyncClient* c, size_t len, uint32_t time){ AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onAck(len, time); }, this); - c->onDisconnect([](void *r, AsyncClient* c){ AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onDisconnect(); delete c; }, this); - c->onTimeout([](void *r, AsyncClient* c, uint32_t time){ AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onTimeout(time); }, this); - c->onData([](void *r, AsyncClient* c, void *buf, size_t len){ AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onData(buf, len); }, this); - c->onPoll([](void *r, AsyncClient* c){ AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onPoll(); }, this); -} - -AsyncWebServerRequest::~AsyncWebServerRequest(){ - _headers.free(); - - _params.free(); - - _interestingHeaders.free(); - - if(_response != NULL){ - delete _response; - } + : _client(c), _server(s), _handler(NULL), _response(NULL), _temp(), _parseState(PARSE_REQ_START), _version(0), _method(HTTP_ANY), _url(), _host(), _contentType(), _boundary(), _authorization(), _reqconntype(RCT_HTTP), _authMethod(AsyncAuthType::AUTH_NONE), _isMultipart(false), _isPlainPost(false), _expectingContinue(false), _contentLength(0), _parsedLength(0), _multiParseState(0), _boundaryPosition(0), _itemStartIndex(0), _itemSize(0), _itemName(), _itemFilename(), _itemType(), _itemValue(), _itemBuffer(0), _itemBufferIndex(0), _itemIsFile(false), _tempObject(NULL) { + c->onError([](void* r, AsyncClient* c, int8_t error) { (void)c; AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onError(error); }, this); + c->onAck([](void* r, AsyncClient* c, size_t len, uint32_t time) { (void)c; AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onAck(len, time); }, this); + c->onDisconnect([](void* r, AsyncClient* c) { AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onDisconnect(); delete c; }, this); + c->onTimeout([](void* r, AsyncClient* c, uint32_t time) { (void)c; AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onTimeout(time); }, this); + c->onData([](void* r, AsyncClient* c, void* buf, size_t len) { (void)c; AsyncWebServerRequest *req = (AsyncWebServerRequest*)r; req->_onData(buf, len); }, this); + c->onPoll([](void* r, AsyncClient* c) { (void)c; AsyncWebServerRequest *req = ( AsyncWebServerRequest*)r; req->_onPoll(); }, this); +} + +AsyncWebServerRequest::~AsyncWebServerRequest() { + _headers.clear(); + + _pathParams.clear(); - if(_tempObject != NULL){ + AsyncWebServerResponse* r = _response; + _response = NULL; + delete r; + + if (_tempObject != NULL) { free(_tempObject); } - if(_tempFile){ + if (_tempFile) { _tempFile.close(); } + + if (_itemBuffer) { + free(_itemBuffer); + } } -void AsyncWebServerRequest::_onData(void *buf, size_t len){ +void AsyncWebServerRequest::_onData(void* buf, size_t len) { + // SSL/TLS handshake detection +#ifndef ASYNC_TCP_SSL_ENABLED + if (_parseState == PARSE_REQ_START && len && ((uint8_t*)buf)[0] == 0x16) { // 0x16 indicates a Handshake message (SSL/TLS). + #ifdef ESP32 + log_d("SSL/TLS handshake detected: resetting connection"); + #endif + _parseState = PARSE_REQ_FAIL; + _client->abort(); + return; + } +#endif + size_t i = 0; while (true) { - if(_parseState < PARSE_REQ_BODY){ - // Find new line in buf - char *str = (char*)buf; - for (i = 0; i < len; i++) { - if (str[i] == '\n') { - break; - } - } - if (i == len) { // No new line, just add the buffer in _temp - char ch = str[len-1]; - str[len-1] = 0; - _temp.reserve(_temp.length()+len); - _temp.concat(str); - _temp.concat(ch); - } else { // Found new line - extract it and parse - str[i] = 0; // Terminate the string at the end of the line. - _temp.concat(str); - _temp.trim(); - _parseLine(); - if (++i < len) { - // Still have more buffer to process - buf = str+i; - len-= i; - continue; + if (_parseState < PARSE_REQ_BODY) { + // Find new line in buf + char* str = (char*)buf; + for (i = 0; i < len; i++) { + // Check for null characters in header + if (!str[i]) { + _parseState = PARSE_REQ_FAIL; + _client->abort(); + return; + } + if (str[i] == '\n') { + break; + } } - } - } else if(_parseState == PARSE_REQ_BODY){ - // A handler should be already attached at this point in _parseLine function. - // If handler does nothing (_onRequest is NULL), we don't need to really parse the body. - const bool needParse = _handler && !_handler->isRequestHandlerTrivial(); - if(_isMultipart){ - if(needParse){ - size_t i; - for(i=0; iisRequestHandlerTrivial(); + if (_isMultipart) { + if (needParse) { + size_t i; + for (i = 0; i < len; i++) { + _parseMultipartPostByte(((uint8_t*)buf)[i], i == len - 1); + _parsedLength++; + } + } else _parsedLength += len; - } else { - if(_parsedLength == 0){ - if(_contentType.startsWith("application/x-www-form-urlencoded")){ - _isPlainPost = true; - } else if(_contentType == "text/plain" && __is_param_char(((char*)buf)[0])){ - size_t i = 0; - while (ihandleBody(this, (uint8_t*)buf, len, _parsedLength, _contentLength); + _parsedLength += len; + } else if (needParse) { + size_t i; + for (i = 0; i < len; i++) { + _parsedLength++; + _parsePlainPostChar(((uint8_t*)buf)[i]); + } + } else { + _parsedLength += len; + } } - if(!_isPlainPost) { - //check if authenticated before calling the body - if(_handler) _handler->handleBody(this, (uint8_t*)buf, len, _parsedLength, _contentLength); - _parsedLength += len; - } else if(needParse) { - size_t i; - for(i=0; i_runChain(this, [this]() { return _handler ? _handler->_runChain(this, [this]() { _handler->handleRequest(this); }) : send(501); }); + if (!_sent) { + if (!_response) + send(501, T_text_plain, "Handler did not handle the request"); + else if (!_response->_sourceValid()) + send(500, T_text_plain, "Invalid data in handler"); + _client->setRxTimeout(0); + _response->_respond(this); + _sent = true; } - } else { - _parsedLength += len; } } - if(_parsedLength == _contentLength){ - _parseState = PARSE_REQ_END; - //check if authenticated before calling handleRequest and request auth instead - if(_handler) _handler->handleRequest(this); - else send(501); - } - } - break; + break; } } -void AsyncWebServerRequest::_removeNotInterestingHeaders(){ - if (_interestingHeaders.containsIgnoreCase("ANY")) return; // nothing to do - for(const auto& header: _headers){ - if(!_interestingHeaders.containsIgnoreCase(header->name().c_str())){ - _headers.remove(header); - } - } -} +void AsyncWebServerRequest::_onPoll() { + // os_printf("p\n"); + if (_response != NULL && _client != NULL && _client->canSend()) { + if (!_response->_finished()) { + _response->_ack(this, 0, 0); + } else { + AsyncWebServerResponse* r = _response; + _response = NULL; + delete r; -void AsyncWebServerRequest::_onPoll(){ - //os_printf("p\n"); - if(_response != NULL && _client != NULL && _client->canSend() && !_response->_finished()){ - _response->_ack(this, 0, 0); + _client->close(); + } } } -void AsyncWebServerRequest::_onAck(size_t len, uint32_t time){ - //os_printf("a:%u:%u\n", len, time); - if(_response != NULL){ - if(!_response->_finished()){ +void AsyncWebServerRequest::_onAck(size_t len, uint32_t time) { + // os_printf("a:%u:%u\n", len, time); + if (_response != NULL) { + if (!_response->_finished()) { _response->_ack(this, len, time); - } else { + } else if (_response->_finished()) { AsyncWebServerResponse* r = _response; _response = NULL; delete r; + + _client->close(); } } } -void AsyncWebServerRequest::_onError(int8_t error){ - +void AsyncWebServerRequest::_onError(int8_t error) { + (void)error; } -void AsyncWebServerRequest::_onTimeout(uint32_t time){ - //os_printf("TIMEOUT: %u, state: %s\n", time, _client->stateToString()); +void AsyncWebServerRequest::_onTimeout(uint32_t time) { + (void)time; + // os_printf("TIMEOUT: %u, state: %s\n", time, _client->stateToString()); _client->close(); } -void AsyncWebServerRequest::onDisconnect (ArDisconnectHandler fn){ - _onDisconnectfn=fn; +void AsyncWebServerRequest::onDisconnect(ArDisconnectHandler fn) { + _onDisconnectfn = fn; } -void AsyncWebServerRequest::_onDisconnect(){ - //os_printf("d\n"); - if(_onDisconnectfn) { - _onDisconnectfn(); - } +void AsyncWebServerRequest::_onDisconnect() { + // os_printf("d\n"); + if (_onDisconnectfn) { + _onDisconnectfn(); + } _server->_handleDisconnect(this); } -void AsyncWebServerRequest::_addParam(AsyncWebParameter *p){ - _params.add(p); +void AsyncWebServerRequest::_addPathParam(const char* p) { + _pathParams.emplace_back(p); } -void AsyncWebServerRequest::_addGetParams(const String& params){ +void AsyncWebServerRequest::_addGetParams(const String& params) { size_t start = 0; - while (start < params.length()){ + while (start < params.length()) { int end = params.indexOf('&', start); - if (end < 0) end = params.length(); + if (end < 0) + end = params.length(); int equal = params.indexOf('=', start); - if (equal < 0 || equal > end) equal = end; - String name = params.substring(start, equal); - String value = equal + 1 < end ? params.substring(equal + 1, end) : String(); - _addParam(new AsyncWebParameter(urlDecode(name), urlDecode(value))); + if (equal < 0 || equal > end) + equal = end; + String name(params.substring(start, equal)); + String value(equal + 1 < end ? params.substring(equal + 1, end) : String()); + _params.emplace_back(urlDecode(name), urlDecode(value)); start = end + 1; } } -bool AsyncWebServerRequest::_parseReqHead(){ +bool AsyncWebServerRequest::_parseReqHead() { // Split the head into method, url and version int index = _temp.indexOf(' '); String m = _temp.substring(0, index); - index = _temp.indexOf(' ', index+1); - String u = _temp.substring(m.length()+1, index); - _temp = _temp.substring(index+1); + index = _temp.indexOf(' ', index + 1); + String u = _temp.substring(m.length() + 1, index); + _temp = _temp.substring(index + 1); - if(m == "GET"){ + if (m == T_GET) { _method = HTTP_GET; - } else if(m == "POST"){ + } else if (m == T_POST) { _method = HTTP_POST; - } else if(m == "DELETE"){ + } else if (m == T_DELETE) { _method = HTTP_DELETE; - } else if(m == "PUT"){ + } else if (m == T_PUT) { _method = HTTP_PUT; - } else if(m == "PATCH"){ + } else if (m == T_PATCH) { _method = HTTP_PATCH; - } else if(m == "HEAD"){ + } else if (m == T_HEAD) { _method = HTTP_HEAD; - } else if(m == "OPTIONS"){ + } else if (m == T_OPTIONS) { _method = HTTP_OPTIONS; + } else { + return false; } - String g = String(); + String g; index = u.indexOf('?'); - if(index > 0){ - g = u.substring(index +1); + if (index > 0) { + g = u.substring(index + 1); u = u.substring(0, index); } _url = urlDecode(u); _addGetParams(g); - if(!_temp.startsWith("HTTP/1.0")) + if (!_url.length()) + return false; + + if (!_temp.startsWith(T_HTTP_1_0)) _version = 1; - _temp = String(); + _temp = emptyString; return true; } -bool strContains(String src, String find, bool mindcase = true) { - int pos=0, i=0; - const int slen = src.length(); - const int flen = find.length(); - - if (slen < flen) return false; - while (pos <= (slen - flen)) { - for (i=0; i < flen; i++) { - if (mindcase) { - if (src[pos+i] != find[i]) i = flen + 1; // no match - } else if (tolower(src[pos+i]) != tolower(find[i])) i = flen + 1; // no match - } - if (i == flen) return true; - pos++; - } - return false; -} - -bool AsyncWebServerRequest::_parseReqHeader(){ +bool AsyncWebServerRequest::_parseReqHeader() { int index = _temp.indexOf(':'); - if(index){ - String name = _temp.substring(0, index); - String value = _temp.substring(index + 2); - if(name.equalsIgnoreCase("Host")){ + if (index) { + String name(_temp.substring(0, index)); + String value(_temp.substring(index + 2)); + if (name.equalsIgnoreCase(T_Host)) { _host = value; - } else if(name.equalsIgnoreCase("Content-Type")){ - if (value.startsWith("multipart/")){ - _boundary = value.substring(value.indexOf('=')+1); - _boundary.replace("\"",""); - _contentType = value.substring(0, value.indexOf(';')); + } else if (name.equalsIgnoreCase(T_Content_Type)) { + _contentType = value.substring(0, value.indexOf(';')); + if (value.startsWith(T_MULTIPART_)) { + _boundary = value.substring(value.indexOf('=') + 1); + _boundary.replace(String('"'), String()); _isMultipart = true; - } else { - _contentType = value; } - } else if(name.equalsIgnoreCase("Content-Length")){ + } else if (name.equalsIgnoreCase(T_Content_Length)) { _contentLength = atoi(value.c_str()); - } else if(name.equalsIgnoreCase("Expect") && value == "100-continue"){ + } else if (name.equalsIgnoreCase(T_EXPECT) && value.equalsIgnoreCase(T_100_CONTINUE)) { _expectingContinue = true; - } else if(name.equalsIgnoreCase("Authorization")){ - if(value.length() > 5 && value.substring(0,5).equalsIgnoreCase("Basic")){ - _authorization = value.substring(6); - } else if(value.length() > 6 && value.substring(0,6).equalsIgnoreCase("Digest")){ - _isDigest = true; - _authorization = value.substring(7); - } - } else { - if(name.equalsIgnoreCase("Upgrade") && value.equalsIgnoreCase("websocket")){ - // WebSocket request can be uniquely identified by header: [Upgrade: websocket] - _reqconntype = RCT_WS; + } else if (name.equalsIgnoreCase(T_AUTH)) { + int space = value.indexOf(' '); + if (space == -1) { + _authorization = value; + _authMethod = AsyncAuthType::AUTH_OTHER; } else { - if(name.equalsIgnoreCase("Accept") && strContains(value, "text/event-stream", false)){ - // WebEvent request can be uniquely identified by header: [Accept: text/event-stream] - _reqconntype = RCT_EVENT; + String method = value.substring(0, space); + if (method.equalsIgnoreCase(T_BASIC)) { + _authMethod = AsyncAuthType::AUTH_BASIC; + } else if (method.equalsIgnoreCase(T_DIGEST)) { + _authMethod = AsyncAuthType::AUTH_DIGEST; + } else if (method.equalsIgnoreCase(T_BEARER)) { + _authMethod = AsyncAuthType::AUTH_BEARER; + } else { + _authMethod = AsyncAuthType::AUTH_OTHER; } + _authorization = value.substring(space + 1); + } + } else if (name.equalsIgnoreCase(T_UPGRADE) && value.equalsIgnoreCase(T_WS)) { + // WebSocket request can be uniquely identified by header: [Upgrade: websocket] + _reqconntype = RCT_WS; + } else if (name.equalsIgnoreCase(T_ACCEPT)) { + String lowcase(value); + lowcase.toLowerCase(); +#ifndef ESP8266 + const char* substr = std::strstr(lowcase.c_str(), T_text_event_stream); +#else + const char* substr = std::strstr(lowcase.c_str(), String(T_text_event_stream).c_str()); +#endif + if (substr != NULL) { + // WebEvent request can be uniquely identified by header: [Accept: text/event-stream] + _reqconntype = RCT_EVENT; } } - _headers.add(new AsyncWebHeader(name, value)); + _headers.emplace_back(name, value); } - _temp = String(); +#ifndef TARGET_RP2040 + _temp.clear(); +#else + // Ancient PRI core does not have String::clear() method 8-() + _temp = emptyString; +#endif return true; } -void AsyncWebServerRequest::_parsePlainPostChar(uint8_t data){ - if(data && (char)data != '&') +void AsyncWebServerRequest::_parsePlainPostChar(uint8_t data) { + if (data && (char)data != '&') _temp += (char)data; - if(!data || (char)data == '&' || _parsedLength == _contentLength){ - String name = "body"; - String value = _temp; - if(!_temp.startsWith("{") && !_temp.startsWith("[") && _temp.indexOf('=') > 0){ + if (!data || (char)data == '&' || _parsedLength == _contentLength) { + String name(T_BODY); + String value(_temp); + if (!(_temp.charAt(0) == '{') && !(_temp.charAt(0) == '[') && _temp.indexOf('=') > 0) { name = _temp.substring(0, _temp.indexOf('=')); value = _temp.substring(_temp.indexOf('=') + 1); } - _addParam(new AsyncWebParameter(urlDecode(name), urlDecode(value), true)); - _temp = String(); + _params.emplace_back(urlDecode(name), urlDecode(value), true); + +#ifndef TARGET_RP2040 + _temp.clear(); +#else + // Ancient PRI core does not have String::clear() method 8-() + _temp = emptyString; +#endif } } -void AsyncWebServerRequest::_handleUploadByte(uint8_t data, bool last){ +void AsyncWebServerRequest::_handleUploadByte(uint8_t data, bool last) { _itemBuffer[_itemBufferIndex++] = data; - if(last || _itemBufferIndex == 1460){ - //check if authenticated before calling the upload - if(_handler) + if (last || _itemBufferIndex == RESPONSE_STREAM_BUFFER_SIZE) { + // check if authenticated before calling the upload + if (_handler) _handler->handleUpload(this, _itemFilename, _itemSize - _itemBufferIndex, _itemBuffer, _itemBufferIndex, false); _itemBufferIndex = 0; } @@ -386,57 +398,64 @@ enum { PARSE_ERROR }; -void AsyncWebServerRequest::_parseMultipartPostByte(uint8_t data, bool last){ -#define itemWriteByte(b) do { _itemSize++; if(_itemIsFile) _handleUploadByte(b, last); else _itemValue+=(char)(b); } while(0) - - if(!_parsedLength){ +void AsyncWebServerRequest::_parseMultipartPostByte(uint8_t data, bool last) { +#define itemWriteByte(b) \ + do { \ + _itemSize++; \ + if (_itemIsFile) \ + _handleUploadByte(b, last); \ + else \ + _itemValue += (char)(b); \ + } while (0) + + if (!_parsedLength) { _multiParseState = EXPECT_BOUNDARY; - _temp = String(); - _itemName = String(); - _itemFilename = String(); - _itemType = String(); + _temp = emptyString; + _itemName = emptyString; + _itemFilename = emptyString; + _itemType = emptyString; } - if(_multiParseState == WAIT_FOR_RETURN1){ - if(data != '\r'){ + if (_multiParseState == WAIT_FOR_RETURN1) { + if (data != '\r') { itemWriteByte(data); } else { _multiParseState = EXPECT_FEED1; } - } else if(_multiParseState == EXPECT_BOUNDARY){ - if(_parsedLength < 2 && data != '-'){ + } else if (_multiParseState == EXPECT_BOUNDARY) { + if (_parsedLength < 2 && data != '-') { _multiParseState = PARSE_ERROR; return; - } else if(_parsedLength - 2 < _boundary.length() && _boundary.c_str()[_parsedLength - 2] != data){ + } else if (_parsedLength - 2 < _boundary.length() && _boundary.c_str()[_parsedLength - 2] != data) { _multiParseState = PARSE_ERROR; return; - } else if(_parsedLength - 2 == _boundary.length() && data != '\r'){ + } else if (_parsedLength - 2 == _boundary.length() && data != '\r') { _multiParseState = PARSE_ERROR; return; - } else if(_parsedLength - 3 == _boundary.length()){ - if(data != '\n'){ + } else if (_parsedLength - 3 == _boundary.length()) { + if (data != '\n') { _multiParseState = PARSE_ERROR; return; } _multiParseState = PARSE_HEADERS; _itemIsFile = false; } - } else if(_multiParseState == PARSE_HEADERS){ - if((char)data != '\r' && (char)data != '\n') - _temp += (char)data; - if((char)data == '\n'){ - if(_temp.length()){ - if(_temp.length() > 12 && _temp.substring(0, 12).equalsIgnoreCase("Content-Type")){ + } else if (_multiParseState == PARSE_HEADERS) { + if ((char)data != '\r' && (char)data != '\n') + _temp += (char)data; + if ((char)data == '\n') { + if (_temp.length()) { + if (_temp.length() > 12 && _temp.substring(0, 12).equalsIgnoreCase(T_Content_Type)) { _itemType = _temp.substring(14); _itemIsFile = true; - } else if(_temp.length() > 19 && _temp.substring(0, 19).equalsIgnoreCase("Content-Disposition")){ + } else if (_temp.length() > 19 && _temp.substring(0, 19).equalsIgnoreCase(T_Content_Disposition)) { _temp = _temp.substring(_temp.indexOf(';') + 2); - while(_temp.indexOf(';') > 0){ + while (_temp.indexOf(';') > 0) { String name = _temp.substring(0, _temp.indexOf('=')); String nameVal = _temp.substring(_temp.indexOf('=') + 2, _temp.indexOf(';') - 1); - if(name == "name"){ + if (name == T_name) { _itemName = nameVal; - } else if(name == "filename"){ + } else if (name == T_filename) { _itemFilename = nameVal; _itemIsFile = true; } @@ -444,25 +463,25 @@ void AsyncWebServerRequest::_parseMultipartPostByte(uint8_t data, bool last){ } String name = _temp.substring(0, _temp.indexOf('=')); String nameVal = _temp.substring(_temp.indexOf('=') + 2, _temp.length() - 1); - if(name == "name"){ + if (name == T_name) { _itemName = nameVal; - } else if(name == "filename"){ + } else if (name == T_filename) { _itemFilename = nameVal; _itemIsFile = true; } } - _temp = String(); + _temp = emptyString; } else { _multiParseState = WAIT_FOR_RETURN1; - //value starts from here + // value starts from here _itemSize = 0; _itemStartIndex = _parsedLength; - _itemValue = String(); - if(_itemIsFile){ - if(_itemBuffer) + _itemValue = emptyString; + if (_itemIsFile) { + if (_itemBuffer) free(_itemBuffer); - _itemBuffer = (uint8_t*)malloc(1460); - if(_itemBuffer == NULL){ + _itemBuffer = (uint8_t*)malloc(RESPONSE_STREAM_BUFFER_SIZE); + if (_itemBuffer == NULL) { _multiParseState = PARSE_ERROR; return; } @@ -470,46 +489,55 @@ void AsyncWebServerRequest::_parseMultipartPostByte(uint8_t data, bool last){ } } } - } else if(_multiParseState == EXPECT_FEED1){ - if(data != '\n'){ + } else if (_multiParseState == EXPECT_FEED1) { + if (data != '\n') { _multiParseState = WAIT_FOR_RETURN1; - itemWriteByte('\r'); _parseMultipartPostByte(data, last); + itemWriteByte('\r'); + _parseMultipartPostByte(data, last); } else { _multiParseState = EXPECT_DASH1; } - } else if(_multiParseState == EXPECT_DASH1){ - if(data != '-'){ + } else if (_multiParseState == EXPECT_DASH1) { + if (data != '-') { _multiParseState = WAIT_FOR_RETURN1; - itemWriteByte('\r'); itemWriteByte('\n'); _parseMultipartPostByte(data, last); + itemWriteByte('\r'); + itemWriteByte('\n'); + _parseMultipartPostByte(data, last); } else { _multiParseState = EXPECT_DASH2; } - } else if(_multiParseState == EXPECT_DASH2){ - if(data != '-'){ + } else if (_multiParseState == EXPECT_DASH2) { + if (data != '-') { _multiParseState = WAIT_FOR_RETURN1; - itemWriteByte('\r'); itemWriteByte('\n'); itemWriteByte('-'); _parseMultipartPostByte(data, last); + itemWriteByte('\r'); + itemWriteByte('\n'); + itemWriteByte('-'); + _parseMultipartPostByte(data, last); } else { _multiParseState = BOUNDARY_OR_DATA; _boundaryPosition = 0; } - } else if(_multiParseState == BOUNDARY_OR_DATA){ - if(_boundaryPosition < _boundary.length() && _boundary.c_str()[_boundaryPosition] != data){ + } else if (_multiParseState == BOUNDARY_OR_DATA) { + if (_boundaryPosition < _boundary.length() && _boundary.c_str()[_boundaryPosition] != data) { _multiParseState = WAIT_FOR_RETURN1; - itemWriteByte('\r'); itemWriteByte('\n'); itemWriteByte('-'); itemWriteByte('-'); + itemWriteByte('\r'); + itemWriteByte('\n'); + itemWriteByte('-'); + itemWriteByte('-'); uint8_t i; - for(i=0; i<_boundaryPosition; i++) + for (i = 0; i < _boundaryPosition; i++) itemWriteByte(_boundary.c_str()[i]); _parseMultipartPostByte(data, last); - } else if(_boundaryPosition == _boundary.length() - 1){ + } else if (_boundaryPosition == _boundary.length() - 1) { _multiParseState = DASH3_OR_RETURN2; - if(!_itemIsFile){ - _addParam(new AsyncWebParameter(_itemName, _itemValue, true)); + if (!_itemIsFile) { + _params.emplace_back(_itemName, _itemValue, true); } else { - if(_itemSize){ - //check if authenticated before calling the upload - if(_handler) _handler->handleUpload(this, _itemFilename, _itemSize - _itemBufferIndex, _itemBuffer, _itemBufferIndex, true); + if (_itemSize) { + if (_handler) + _handler->handleUpload(this, _itemFilename, _itemSize - _itemBufferIndex, _itemBuffer, _itemBufferIndex, true); _itemBufferIndex = 0; - _addParam(new AsyncWebParameter(_itemName, _itemFilename, true, true, _itemSize)); + _params.emplace_back(_itemName, _itemFilename, true, true, _itemSize); } free(_itemBuffer); _itemBuffer = NULL; @@ -518,298 +546,269 @@ void AsyncWebServerRequest::_parseMultipartPostByte(uint8_t data, bool last){ } else { _boundaryPosition++; } - } else if(_multiParseState == DASH3_OR_RETURN2){ - if(data == '-' && (_contentLength - _parsedLength - 4) != 0){ - //os_printf("ERROR: The parser got to the end of the POST but is expecting %u bytes more!\nDrop an issue so we can have more info on the matter!\n", _contentLength - _parsedLength - 4); - _contentLength = _parsedLength + 4;//lets close the request gracefully + } else if (_multiParseState == DASH3_OR_RETURN2) { + if (data == '-' && (_contentLength - _parsedLength - 4) != 0) { + // os_printf("ERROR: The parser got to the end of the POST but is expecting %u bytes more!\nDrop an issue so we can have more info on the matter!\n", _contentLength - _parsedLength - 4); + _contentLength = _parsedLength + 4; // lets close the request gracefully } - if(data == '\r'){ + if (data == '\r') { _multiParseState = EXPECT_FEED2; - } else if(data == '-' && _contentLength == (_parsedLength + 4)){ + } else if (data == '-' && _contentLength == (_parsedLength + 4)) { _multiParseState = PARSING_FINISHED; } else { _multiParseState = WAIT_FOR_RETURN1; - itemWriteByte('\r'); itemWriteByte('\n'); itemWriteByte('-'); itemWriteByte('-'); - uint8_t i; for(i=0; i<_boundary.length(); i++) itemWriteByte(_boundary.c_str()[i]); + itemWriteByte('\r'); + itemWriteByte('\n'); + itemWriteByte('-'); + itemWriteByte('-'); + uint8_t i; + for (i = 0; i < _boundary.length(); i++) + itemWriteByte(_boundary.c_str()[i]); _parseMultipartPostByte(data, last); } - } else if(_multiParseState == EXPECT_FEED2){ - if(data == '\n'){ + } else if (_multiParseState == EXPECT_FEED2) { + if (data == '\n') { _multiParseState = PARSE_HEADERS; _itemIsFile = false; } else { _multiParseState = WAIT_FOR_RETURN1; - itemWriteByte('\r'); itemWriteByte('\n'); itemWriteByte('-'); itemWriteByte('-'); - uint8_t i; for(i=0; i<_boundary.length(); i++) itemWriteByte(_boundary.c_str()[i]); - itemWriteByte('\r'); _parseMultipartPostByte(data, last); + itemWriteByte('\r'); + itemWriteByte('\n'); + itemWriteByte('-'); + itemWriteByte('-'); + uint8_t i; + for (i = 0; i < _boundary.length(); i++) + itemWriteByte(_boundary.c_str()[i]); + itemWriteByte('\r'); + _parseMultipartPostByte(data, last); } } } -void AsyncWebServerRequest::_parseLine(){ - if(_parseState == PARSE_REQ_START){ - if(!_temp.length()){ +void AsyncWebServerRequest::_parseLine() { + if (_parseState == PARSE_REQ_START) { + if (!_temp.length()) { _parseState = PARSE_REQ_FAIL; - _client->close(); + _client->abort(); } else { - _parseReqHead(); - _parseState = PARSE_REQ_HEADERS; + if (_parseReqHead()) { + _parseState = PARSE_REQ_HEADERS; + } else { + _parseState = PARSE_REQ_FAIL; + _client->abort(); + } } return; } - if(_parseState == PARSE_REQ_HEADERS){ - if(!_temp.length()){ - //end of headers + if (_parseState == PARSE_REQ_HEADERS) { + if (!_temp.length()) { + // end of headers _server->_rewriteRequest(this); _server->_attachHandler(this); - _removeNotInterestingHeaders(); - if(_expectingContinue){ - const char * response = "HTTP/1.1 100 Continue\r\n\r\n"; - _client->write(response, os_strlen(response)); + if (_expectingContinue) { + String response(T_HTTP_100_CONT); + _client->write(response.c_str(), response.length()); } - //check handler for authentication - if(_contentLength){ + if (_contentLength) { _parseState = PARSE_REQ_BODY; } else { _parseState = PARSE_REQ_END; - if(_handler) _handler->handleRequest(this); - else send(501); + _server->_runChain(this, [this]() { return _handler ? _handler->_runChain(this, [this]() { _handler->handleRequest(this); }) : send(501); }); + if (!_sent) { + if (!_response) + send(501, T_text_plain, "Handler did not handle the request"); + else if (!_response->_sourceValid()) + send(500, T_text_plain, "Invalid data in handler"); + _client->setRxTimeout(0); + _response->_respond(this); + _sent = true; + } } - } else _parseReqHeader(); + } else + _parseReqHeader(); } } -size_t AsyncWebServerRequest::headers() const{ - return _headers.length(); +size_t AsyncWebServerRequest::headers() const { + return _headers.size(); } -bool AsyncWebServerRequest::hasHeader(const String& name) const { - for(const auto& h: _headers){ - if(h->name().equalsIgnoreCase(name)){ +bool AsyncWebServerRequest::hasHeader(const char* name) const { + for (const auto& h : _headers) { + if (h.name().equalsIgnoreCase(name)) { return true; } } return false; } -bool AsyncWebServerRequest::hasHeader(const __FlashStringHelper * data) const { +#ifdef ESP8266 +bool AsyncWebServerRequest::hasHeader(const __FlashStringHelper* data) const { + return hasHeader(String(data)); +} +#endif + +const AsyncWebHeader* AsyncWebServerRequest::getHeader(const char* name) const { + auto iter = std::find_if(std::begin(_headers), std::end(_headers), [&name](const AsyncWebHeader& header) { return header.name().equalsIgnoreCase(name); }); + return (iter == std::end(_headers)) ? nullptr : &(*iter); +} + +#ifdef ESP8266 +const AsyncWebHeader* AsyncWebServerRequest::getHeader(const __FlashStringHelper* data) const { PGM_P p = reinterpret_cast(data); - size_t n = 0; - while (1) { - if (pgm_read_byte(p+n) == 0) break; - n += 1; - } - char * name = (char*) malloc(n+1); - name[n] = 0; + size_t n = strlen_P(p); + char* name = (char*)malloc(n + 1); if (name) { - for(size_t b=0; bname().equalsIgnoreCase(name)){ - return h; - } - } - return nullptr; +const AsyncWebHeader* AsyncWebServerRequest::getHeader(size_t num) const { + if (num >= _headers.size()) + return nullptr; + return &(*std::next(_headers.cbegin(), num)); } -AsyncWebHeader* AsyncWebServerRequest::getHeader(const __FlashStringHelper * data) const { - PGM_P p = reinterpret_cast(data); - size_t n = strlen_P(p); - char * name = (char*) malloc(n+1); - if (name) { - strcpy_P(name, p); - AsyncWebHeader* result = getHeader( String(name)); - free(name); - return result; - } else { - return nullptr; +size_t AsyncWebServerRequest::getHeaderNames(std::vector& names) const { + const size_t size = _headers.size(); + names.reserve(size); + for (const auto& h : _headers) { + names.push_back(h.name().c_str()); } + return size; } -AsyncWebHeader* AsyncWebServerRequest::getHeader(size_t num) const { - auto header = _headers.nth(num); - return header ? *header : nullptr; +bool AsyncWebServerRequest::removeHeader(const char* name) { + const size_t size = _headers.size(); + _headers.remove_if([name](const AsyncWebHeader& header) { return header.name().equalsIgnoreCase(name); }); + return size != _headers.size(); } size_t AsyncWebServerRequest::params() const { - return _params.length(); + return _params.size(); } -bool AsyncWebServerRequest::hasParam(const String& name, bool post, bool file) const { - for(const auto& p: _params){ - if(p->name() == name && p->isPost() == post && p->isFile() == file){ +bool AsyncWebServerRequest::hasParam(const char* name, bool post, bool file) const { + for (const auto& p : _params) { + if (p.name().equals(name) && p.isPost() == post && p.isFile() == file) { return true; } } return false; } -bool AsyncWebServerRequest::hasParam(const __FlashStringHelper * data, bool post, bool file) const { - PGM_P p = reinterpret_cast(data); - size_t n = strlen_P(p); - - char * name = (char*) malloc(n+1); - name[n] = 0; - if (name) { - strcpy_P(name,p); - bool result = hasParam( name, post, file); - free(name); - return result; - } else { - return false; - } -} - -AsyncWebParameter* AsyncWebServerRequest::getParam(const String& name, bool post, bool file) const { - for(const auto& p: _params){ - if(p->name() == name && p->isPost() == post && p->isFile() == file){ - return p; +const AsyncWebParameter* AsyncWebServerRequest::getParam(const char* name, bool post, bool file) const { + for (const auto& p : _params) { + if (p.name() == name && p.isPost() == post && p.isFile() == file) { + return &p; } } return nullptr; } -AsyncWebParameter* AsyncWebServerRequest::getParam(const __FlashStringHelper * data, bool post, bool file) const { - PGM_P p = reinterpret_cast(data); - size_t n = strlen_P(p); - char * name = (char*) malloc(n+1); - if (name) { - strcpy_P(name, p); - AsyncWebParameter* result = getParam(name, post, file); - free(name); - return result; - } else { - return nullptr; - } +#ifdef ESP8266 +const AsyncWebParameter* AsyncWebServerRequest::getParam(const __FlashStringHelper* data, bool post, bool file) const { + return getParam(String(data), post, file); } +#endif -AsyncWebParameter* AsyncWebServerRequest::getParam(size_t num) const { - auto param = _params.nth(num); - return param ? *param : nullptr; +const AsyncWebParameter* AsyncWebServerRequest::getParam(size_t num) const { + if (num >= _params.size()) + return nullptr; + return &(*std::next(_params.cbegin(), num)); } -void AsyncWebServerRequest::addInterestingHeader(const String& name){ - if(!_interestingHeaders.containsIgnoreCase(name)) - _interestingHeaders.add(name); +const String& AsyncWebServerRequest::getAttribute(const char* name, const String& defaultValue) const { + auto it = _attributes.find(name); + return it != _attributes.end() ? it->second : defaultValue; } - -void AsyncWebServerRequest::send(AsyncWebServerResponse *response){ - _response = response; - if(_response == NULL){ - _client->close(true); - _onDisconnect(); - return; - } - if(!_response->_sourceValid()){ - delete response; - _response = NULL; - send(500); - } - else { - _client->setRxTimeout(0); - _response->_respond(this); - } +bool AsyncWebServerRequest::getAttribute(const char* name, bool defaultValue) const { + auto it = _attributes.find(name); + return it != _attributes.end() ? it->second == "1" : defaultValue; +} +long AsyncWebServerRequest::getAttribute(const char* name, long defaultValue) const { + auto it = _attributes.find(name); + return it != _attributes.end() ? it->second.toInt() : defaultValue; +} +float AsyncWebServerRequest::getAttribute(const char* name, float defaultValue) const { + auto it = _attributes.find(name); + return it != _attributes.end() ? it->second.toFloat() : defaultValue; +} +double AsyncWebServerRequest::getAttribute(const char* name, double defaultValue) const { + auto it = _attributes.find(name); + return it != _attributes.end() ? it->second.toDouble() : defaultValue; } -AsyncWebServerResponse * AsyncWebServerRequest::beginResponse(int code, const String& contentType, const String& content){ +AsyncWebServerResponse* AsyncWebServerRequest::beginResponse(int code, const char* contentType, const char* content, AwsTemplateProcessor callback) { + if (callback) + return new AsyncProgmemResponse(code, contentType, (const uint8_t*)content, strlen(content), callback); return new AsyncBasicResponse(code, contentType, content); } -AsyncWebServerResponse * AsyncWebServerRequest::beginResponse(FS &fs, const String& path, const String& contentType, bool download, AwsTemplateProcessor callback){ - if(fs.exists(path) || (!download && fs.exists(path+".gz"))) +AsyncWebServerResponse* AsyncWebServerRequest::beginResponse(int code, const char* contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback) { + return new AsyncProgmemResponse(code, contentType, content, len, callback); +} + +AsyncWebServerResponse* AsyncWebServerRequest::beginResponse(FS& fs, const String& path, const char* contentType, bool download, AwsTemplateProcessor callback) { + if (fs.exists(path) || (!download && fs.exists(path + T__gz))) return new AsyncFileResponse(fs, path, contentType, download, callback); return NULL; } -AsyncWebServerResponse * AsyncWebServerRequest::beginResponse(File content, const String& path, const String& contentType, bool download, AwsTemplateProcessor callback){ - if(content == true) +AsyncWebServerResponse* AsyncWebServerRequest::beginResponse(File content, const String& path, const char* contentType, bool download, AwsTemplateProcessor callback) { + if (content == true) return new AsyncFileResponse(content, path, contentType, download, callback); return NULL; } -AsyncWebServerResponse * AsyncWebServerRequest::beginResponse(Stream &stream, const String& contentType, size_t len, AwsTemplateProcessor callback){ +AsyncWebServerResponse* AsyncWebServerRequest::beginResponse(Stream& stream, const char* contentType, size_t len, AwsTemplateProcessor callback) { return new AsyncStreamResponse(stream, contentType, len, callback); } -AsyncWebServerResponse * AsyncWebServerRequest::beginResponse(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback){ +AsyncWebServerResponse* AsyncWebServerRequest::beginResponse(const char* contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback) { return new AsyncCallbackResponse(contentType, len, callback, templateCallback); } -AsyncWebServerResponse * AsyncWebServerRequest::beginChunkedResponse(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback){ - if(_version) +AsyncWebServerResponse* AsyncWebServerRequest::beginChunkedResponse(const char* contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback) { + if (_version) return new AsyncChunkedResponse(contentType, callback, templateCallback); return new AsyncCallbackResponse(contentType, 0, callback, templateCallback); } -AsyncResponseStream * AsyncWebServerRequest::beginResponseStream(const String& contentType, size_t bufferSize){ +AsyncResponseStream* AsyncWebServerRequest::beginResponseStream(const char* contentType, size_t bufferSize) { return new AsyncResponseStream(contentType, bufferSize); } -AsyncWebServerResponse * AsyncWebServerRequest::beginResponse_P(int code, const String& contentType, const uint8_t * content, size_t len, AwsTemplateProcessor callback){ - return new AsyncProgmemResponse(code, contentType, content, len, callback); -} - -AsyncWebServerResponse * AsyncWebServerRequest::beginResponse_P(int code, const String& contentType, PGM_P content, AwsTemplateProcessor callback){ - return beginResponse_P(code, contentType, (const uint8_t *)content, strlen_P(content), callback); -} - -void AsyncWebServerRequest::send(int code, const String& contentType, const String& content){ - send(beginResponse(code, contentType, content)); -} - -void AsyncWebServerRequest::send(FS &fs, const String& path, const String& contentType, bool download, AwsTemplateProcessor callback){ - if(fs.exists(path) || (!download && fs.exists(path+".gz"))){ - send(beginResponse(fs, path, contentType, download, callback)); - } else send(404); -} - -void AsyncWebServerRequest::send(File content, const String& path, const String& contentType, bool download, AwsTemplateProcessor callback){ - if(content == true){ - send(beginResponse(content, path, contentType, download, callback)); - } else send(404); -} - -void AsyncWebServerRequest::send(Stream &stream, const String& contentType, size_t len, AwsTemplateProcessor callback){ - send(beginResponse(stream, contentType, len, callback)); -} - -void AsyncWebServerRequest::send(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback){ - send(beginResponse(contentType, len, callback, templateCallback)); -} - -void AsyncWebServerRequest::sendChunked(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback){ - send(beginChunkedResponse(contentType, callback, templateCallback)); -} - -void AsyncWebServerRequest::send_P(int code, const String& contentType, const uint8_t * content, size_t len, AwsTemplateProcessor callback){ - send(beginResponse_P(code, contentType, content, len, callback)); +AsyncWebServerResponse* AsyncWebServerRequest::beginResponse_P(int code, const String& contentType, PGM_P content, AwsTemplateProcessor callback) { + return new AsyncProgmemResponse(code, contentType, (const uint8_t*)content, strlen_P(content), callback); } -void AsyncWebServerRequest::send_P(int code, const String& contentType, PGM_P content, AwsTemplateProcessor callback){ - send(beginResponse_P(code, contentType, content, callback)); +void AsyncWebServerRequest::send(AsyncWebServerResponse* response) { + if (_sent) + return; + if (_response) + delete _response; + _response = response; } -void AsyncWebServerRequest::redirect(const String& url){ - AsyncWebServerResponse * response = beginResponse(302); - response->addHeader("Location",url); +void AsyncWebServerRequest::redirect(const char* url, int code) { + AsyncWebServerResponse* response = beginResponse(code); + response->addHeader(T_LOCATION, url); send(response); } -bool AsyncWebServerRequest::authenticate(const char * username, const char * password, const char * realm, bool passwordIsHash){ - if(_authorization.length()){ - if(_isDigest) +bool AsyncWebServerRequest::authenticate(const char* username, const char* password, const char* realm, bool passwordIsHash) const { + if (_authorization.length()) { + if (_authMethod == AsyncAuthType::AUTH_DIGEST) return checkDigestAuthentication(_authorization.c_str(), methodToString(), username, password, realm, passwordIsHash, NULL, NULL, NULL); - else if(!passwordIsHash) + else if (!passwordIsHash) return checkBasicAuthentication(_authorization.c_str(), username, password); else return _authorization.equals(password); @@ -817,92 +816,96 @@ bool AsyncWebServerRequest::authenticate(const char * username, const char * pas return false; } -bool AsyncWebServerRequest::authenticate(const char * hash){ - if(!_authorization.length() || hash == NULL) +bool AsyncWebServerRequest::authenticate(const char* hash) const { + if (!_authorization.length() || hash == NULL) return false; - if(_isDigest){ + if (_authMethod == AsyncAuthType::AUTH_DIGEST) { String hStr = String(hash); - int separator = hStr.indexOf(":"); - if(separator <= 0) + int separator = hStr.indexOf(':'); + if (separator <= 0) return false; String username = hStr.substring(0, separator); hStr = hStr.substring(separator + 1); - separator = hStr.indexOf(":"); - if(separator <= 0) + separator = hStr.indexOf(':'); + if (separator <= 0) return false; String realm = hStr.substring(0, separator); hStr = hStr.substring(separator + 1); return checkDigestAuthentication(_authorization.c_str(), methodToString(), username.c_str(), hStr.c_str(), realm.c_str(), true, NULL, NULL, NULL); } + // Basic Auth, Bearer Auth, or other return (_authorization.equals(hash)); } -void AsyncWebServerRequest::requestAuthentication(const char * realm, bool isDigest){ - AsyncWebServerResponse * r = beginResponse(401); - if(!isDigest && realm == NULL){ - r->addHeader("WWW-Authenticate", "Basic realm=\"Login Required\""); - } else if(!isDigest){ - String header = "Basic realm=\""; - header.concat(realm); - header.concat("\""); - r->addHeader("WWW-Authenticate", header); - } else { - String header = "Digest "; - header.concat(requestDigestAuthentication(realm)); - r->addHeader("WWW-Authenticate", header); +void AsyncWebServerRequest::requestAuthentication(AsyncAuthType method, const char* realm, const char* _authFailMsg) { + if (!realm) + realm = T_LOGIN_REQ; + + AsyncWebServerResponse* r = _authFailMsg ? beginResponse(401, T_text_html, _authFailMsg) : beginResponse(401); + + switch (method) { + case AsyncAuthType::AUTH_BASIC: { + String header; + header.reserve(strlen(T_BASIC_REALM) + strlen(realm) + 1); + header.concat(T_BASIC_REALM); + header.concat(realm); + header.concat('"'); + r->addHeader(T_WWW_AUTH, header.c_str()); + break; + } + case AsyncAuthType::AUTH_DIGEST: { + size_t len = strlen(T_DIGEST_) + strlen(T_realm__) + strlen(T_auth_nonce) + 32 + strlen(T__opaque) + 32 + 1; + String header; + header.reserve(len + strlen(realm)); + header.concat(T_DIGEST_); + header.concat(T_realm__); + header.concat(realm); + header.concat(T_auth_nonce); + header.concat(genRandomMD5()); + header.concat(T__opaque); + header.concat(genRandomMD5()); + header.concat((char)0x22); // '"' + r->addHeader(T_WWW_AUTH, header.c_str()); + break; + } + default: + break; } + send(r); } bool AsyncWebServerRequest::hasArg(const char* name) const { - for(const auto& arg: _params){ - if(arg->name() == name){ + for (const auto& arg : _params) { + if (arg.name() == name) { return true; } } return false; } -bool AsyncWebServerRequest::hasArg(const __FlashStringHelper * data) const { - PGM_P p = reinterpret_cast(data); - size_t n = strlen_P(p); - char * name = (char*) malloc(n+1); - if (name) { - strcpy_P(name, p); - bool result = hasArg( name ); - free(name); - return result; - } else { - return false; - } +#ifdef ESP8266 +bool AsyncWebServerRequest::hasArg(const __FlashStringHelper* data) const { + return hasArg(String(data).c_str()); } +#endif - -const String& AsyncWebServerRequest::arg(const String& name) const { - for(const auto& arg: _params){ - if(arg->name() == name){ - return arg->value(); +const String& AsyncWebServerRequest::arg(const char* name) const { + for (const auto& arg : _params) { + if (arg.name() == name) { + return arg.value(); } } - return SharedEmptyString; + return emptyString; } -const String& AsyncWebServerRequest::arg(const __FlashStringHelper * data) const { - PGM_P p = reinterpret_cast(data); - size_t n = strlen_P(p); - char * name = (char*) malloc(n+1); - if (name) { - strcpy_P(name, p); - const String & result = arg( String(name) ); - free(name); - return result; - } else { - return SharedEmptyString; - } - +#ifdef ESP8266 +const String& AsyncWebServerRequest::arg(const __FlashStringHelper* data) const { + return arg(String(data).c_str()); } +#endif const String& AsyncWebServerRequest::arg(size_t i) const { return getParam(i)->value(); @@ -912,87 +915,93 @@ const String& AsyncWebServerRequest::argName(size_t i) const { return getParam(i)->name(); } -const String& AsyncWebServerRequest::header(const char* name) const { - AsyncWebHeader* h = getHeader(String(name)); - return h ? h->value() : SharedEmptyString; +const String& AsyncWebServerRequest::pathArg(size_t i) const { + return i < _pathParams.size() ? _pathParams[i] : emptyString; } -const String& AsyncWebServerRequest::header(const __FlashStringHelper * data) const { - PGM_P p = reinterpret_cast(data); - size_t n = strlen_P(p); - char * name = (char*) malloc(n+1); - if (name) { - strcpy_P(name, p); - const String & result = header( (const char *)name ); - free(name); - return result; - } else { - return SharedEmptyString; - } -}; +const String& AsyncWebServerRequest::header(const char* name) const { + const AsyncWebHeader* h = getHeader(name); + return h ? h->value() : emptyString; +} +#ifdef ESP8266 +const String& AsyncWebServerRequest::header(const __FlashStringHelper* data) const { + return header(String(data).c_str()); +}; +#endif const String& AsyncWebServerRequest::header(size_t i) const { - AsyncWebHeader* h = getHeader(i); - return h ? h->value() : SharedEmptyString; + const AsyncWebHeader* h = getHeader(i); + return h ? h->value() : emptyString; } const String& AsyncWebServerRequest::headerName(size_t i) const { - AsyncWebHeader* h = getHeader(i); - return h ? h->name() : SharedEmptyString; + const AsyncWebHeader* h = getHeader(i); + return h ? h->name() : emptyString; } String AsyncWebServerRequest::urlDecode(const String& text) const { char temp[] = "0x00"; unsigned int len = text.length(); unsigned int i = 0; - String decoded = String(); + String decoded; decoded.reserve(len); // Allocate the string internal buffer - never longer from source text - while (i < len){ + while (i < len) { char decodedChar; char encodedChar = text.charAt(i++); - if ((encodedChar == '%') && (i + 1 < len)){ + if ((encodedChar == '%') && (i + 1 < len)) { temp[2] = text.charAt(i++); temp[3] = text.charAt(i++); decodedChar = strtol(temp, NULL, 16); } else if (encodedChar == '+') { decodedChar = ' '; } else { - decodedChar = encodedChar; // normal ascii char + decodedChar = encodedChar; // normal ascii char } decoded.concat(decodedChar); } return decoded; } - -const char * AsyncWebServerRequest::methodToString() const { - if(_method == HTTP_ANY) return "ANY"; - else if(_method & HTTP_GET) return "GET"; - else if(_method & HTTP_POST) return "POST"; - else if(_method & HTTP_DELETE) return "DELETE"; - else if(_method & HTTP_PUT) return "PUT"; - else if(_method & HTTP_PATCH) return "PATCH"; - else if(_method & HTTP_HEAD) return "HEAD"; - else if(_method & HTTP_OPTIONS) return "OPTIONS"; - return "UNKNOWN"; -} - -const char *AsyncWebServerRequest::requestedConnTypeToString() const { +const char* AsyncWebServerRequest::methodToString() const { + if (_method == HTTP_ANY) + return T_ANY; + if (_method & HTTP_GET) + return T_GET; + if (_method & HTTP_POST) + return T_POST; + if (_method & HTTP_DELETE) + return T_DELETE; + if (_method & HTTP_PUT) + return T_PUT; + if (_method & HTTP_PATCH) + return T_PATCH; + if (_method & HTTP_HEAD) + return T_HEAD; + if (_method & HTTP_OPTIONS) + return T_OPTIONS; + return T_UNKNOWN; +} + +const char* AsyncWebServerRequest::requestedConnTypeToString() const { switch (_reqconntype) { - case RCT_NOT_USED: return "RCT_NOT_USED"; - case RCT_DEFAULT: return "RCT_DEFAULT"; - case RCT_HTTP: return "RCT_HTTP"; - case RCT_WS: return "RCT_WS"; - case RCT_EVENT: return "RCT_EVENT"; - default: return "ERROR"; - } -} - -bool AsyncWebServerRequest::isExpectedRequestedConnType(RequestedConnectionType erct1, RequestedConnectionType erct2, RequestedConnectionType erct3) { - bool res = false; - if ((erct1 != RCT_NOT_USED) && (erct1 == _reqconntype)) res = true; - if ((erct2 != RCT_NOT_USED) && (erct2 == _reqconntype)) res = true; - if ((erct3 != RCT_NOT_USED) && (erct3 == _reqconntype)) res = true; - return res; + case RCT_NOT_USED: + return T_RCT_NOT_USED; + case RCT_DEFAULT: + return T_RCT_DEFAULT; + case RCT_HTTP: + return T_RCT_HTTP; + case RCT_WS: + return T_RCT_WS; + case RCT_EVENT: + return T_RCT_EVENT; + default: + return T_ERROR; + } +} + +bool AsyncWebServerRequest::isExpectedRequestedConnType(RequestedConnectionType erct1, RequestedConnectionType erct2, RequestedConnectionType erct3) const { + return ((erct1 != RCT_NOT_USED) && (erct1 == _reqconntype)) || + ((erct2 != RCT_NOT_USED) && (erct2 == _reqconntype)) || + ((erct3 != RCT_NOT_USED) && (erct3 == _reqconntype)); } diff --git a/src/WebResponseImpl.h b/src/WebResponseImpl.h index 9a64e3a52..fa462b69c 100644 --- a/src/WebResponseImpl.h +++ b/src/WebResponseImpl.h @@ -22,113 +22,137 @@ #define ASYNCWEBSERVERRESPONSEIMPL_H_ #ifdef Arduino_h -// arduino is not compatible with std::vector -#undef min -#undef max + // arduino is not compatible with std::vector + #undef min + #undef max #endif +#include "literals.h" +#include +#include #include + // It is possible to restore these defines, but one can use _min and _max instead. Or std::min, std::max. -class AsyncBasicResponse: public AsyncWebServerResponse { +class AsyncBasicResponse : public AsyncWebServerResponse { private: String _content; + public: - AsyncBasicResponse(int code, const String& contentType=String(), const String& content=String()); - void _respond(AsyncWebServerRequest *request); - size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time); - bool _sourceValid() const { return true; } + explicit AsyncBasicResponse(int code, const char* contentType = asyncsrv::empty, const char* content = asyncsrv::empty); + AsyncBasicResponse(int code, const String& contentType, const String& content = emptyString) : AsyncBasicResponse(code, contentType.c_str(), content.c_str()) {} + void _respond(AsyncWebServerRequest* request) override final; + size_t _ack(AsyncWebServerRequest* request, size_t len, uint32_t time) override final; + bool _sourceValid() const override final { return true; } }; -class AsyncAbstractResponse: public AsyncWebServerResponse { +class AsyncAbstractResponse : public AsyncWebServerResponse { private: + // amount of responce data in-flight, i.e. sent, but not acked yet + size_t _in_flight{0}; + // in-flight queue credits + size_t _in_flight_credit{2}; String _head; - // Data is inserted into cache at begin(). - // This is inefficient with vector, but if we use some other container, + // Data is inserted into cache at begin(). + // This is inefficient with vector, but if we use some other container, // we won't be able to access it as contiguous array of bytes when reading from it, // so by gaining performance in one place, we'll lose it in another. std::vector _cache; size_t _readDataFromCacheOrContent(uint8_t* data, const size_t len); size_t _fillBufferAndProcessTemplates(uint8_t* buf, size_t maxLen); + protected: AwsTemplateProcessor _callback; + public: - AsyncAbstractResponse(AwsTemplateProcessor callback=nullptr); - void _respond(AsyncWebServerRequest *request); - size_t _ack(AsyncWebServerRequest *request, size_t len, uint32_t time); - bool _sourceValid() const { return false; } - virtual size_t _fillBuffer(uint8_t *buf __attribute__((unused)), size_t maxLen __attribute__((unused))) { return 0; } + AsyncAbstractResponse(AwsTemplateProcessor callback = nullptr); + virtual ~AsyncAbstractResponse() {} + void _respond(AsyncWebServerRequest* request) override final; + size_t _ack(AsyncWebServerRequest* request, size_t len, uint32_t time) override final; + virtual bool _sourceValid() const { return false; } + virtual size_t _fillBuffer(uint8_t* buf __attribute__((unused)), size_t maxLen __attribute__((unused))) { return 0; } }; #ifndef TEMPLATE_PLACEHOLDER -#define TEMPLATE_PLACEHOLDER '%' + #define TEMPLATE_PLACEHOLDER '%' #endif #define TEMPLATE_PARAM_NAME_LENGTH 32 -class AsyncFileResponse: public AsyncAbstractResponse { - using File = fs::File; - using FS = fs::FS; +class AsyncFileResponse : public AsyncAbstractResponse { + using File = fs::File; + using FS = fs::FS; + private: File _content; String _path; - void _setContentType(const String& path); + void _setContentTypeFromPath(const String& path); + public: - AsyncFileResponse(FS &fs, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr); - AsyncFileResponse(File content, const String& path, const String& contentType=String(), bool download=false, AwsTemplateProcessor callback=nullptr); - ~AsyncFileResponse(); - bool _sourceValid() const { return !!(_content); } - virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override; + AsyncFileResponse(FS& fs, const String& path, const char* contentType = asyncsrv::empty, bool download = false, AwsTemplateProcessor callback = nullptr); + AsyncFileResponse(FS& fs, const String& path, const String& contentType, bool download = false, AwsTemplateProcessor callback = nullptr) : AsyncFileResponse(fs, path, contentType.c_str(), download, callback) {} + AsyncFileResponse(File content, const String& path, const char* contentType = asyncsrv::empty, bool download = false, AwsTemplateProcessor callback = nullptr); + AsyncFileResponse(File content, const String& path, const String& contentType, bool download = false, AwsTemplateProcessor callack = nullptr) : AsyncFileResponse(content, path, contentType.c_str(), download, callack) {} + ~AsyncFileResponse() { _content.close(); } + bool _sourceValid() const override final { return !!(_content); } + size_t _fillBuffer(uint8_t* buf, size_t maxLen) override final; }; -class AsyncStreamResponse: public AsyncAbstractResponse { +class AsyncStreamResponse : public AsyncAbstractResponse { private: - Stream *_content; + Stream* _content; + public: - AsyncStreamResponse(Stream &stream, const String& contentType, size_t len, AwsTemplateProcessor callback=nullptr); - bool _sourceValid() const { return !!(_content); } - virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override; + AsyncStreamResponse(Stream& stream, const char* contentType, size_t len, AwsTemplateProcessor callback = nullptr); + AsyncStreamResponse(Stream& stream, const String& contentType, size_t len, AwsTemplateProcessor callback = nullptr) : AsyncStreamResponse(stream, contentType.c_str(), len, callback) {} + bool _sourceValid() const override final { return !!(_content); } + size_t _fillBuffer(uint8_t* buf, size_t maxLen) override final; }; -class AsyncCallbackResponse: public AsyncAbstractResponse { +class AsyncCallbackResponse : public AsyncAbstractResponse { private: AwsResponseFiller _content; size_t _filledLength; + public: - AsyncCallbackResponse(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr); - bool _sourceValid() const { return !!(_content); } - virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override; + AsyncCallbackResponse(const char* contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr); + AsyncCallbackResponse(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr) : AsyncCallbackResponse(contentType.c_str(), len, callback, templateCallback) {} + bool _sourceValid() const override final { return !!(_content); } + size_t _fillBuffer(uint8_t* buf, size_t maxLen) override final; }; -class AsyncChunkedResponse: public AsyncAbstractResponse { +class AsyncChunkedResponse : public AsyncAbstractResponse { private: AwsResponseFiller _content; size_t _filledLength; + public: - AsyncChunkedResponse(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback=nullptr); - bool _sourceValid() const { return !!(_content); } - virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override; + AsyncChunkedResponse(const char* contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr); + AsyncChunkedResponse(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor templateCallback = nullptr) : AsyncChunkedResponse(contentType.c_str(), callback, templateCallback) {} + bool _sourceValid() const override final { return !!(_content); } + size_t _fillBuffer(uint8_t* buf, size_t maxLen) override final; }; -class AsyncProgmemResponse: public AsyncAbstractResponse { +class AsyncProgmemResponse : public AsyncAbstractResponse { private: - const uint8_t * _content; + const uint8_t* _content; size_t _readLength; + public: - AsyncProgmemResponse(int code, const String& contentType, const uint8_t * content, size_t len, AwsTemplateProcessor callback=nullptr); - bool _sourceValid() const { return true; } - virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override; + AsyncProgmemResponse(int code, const char* contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback = nullptr); + AsyncProgmemResponse(int code, const String& contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback = nullptr) : AsyncProgmemResponse(code, contentType.c_str(), content, len, callback) {} + bool _sourceValid() const override final { return true; } + size_t _fillBuffer(uint8_t* buf, size_t maxLen) override final; }; -class cbuf; - -class AsyncResponseStream: public AsyncAbstractResponse, public Print { +class AsyncResponseStream : public AsyncAbstractResponse, public Print { private: - cbuf *_content; + StreamString _content; + public: - AsyncResponseStream(const String& contentType, size_t bufferSize); - ~AsyncResponseStream(); - bool _sourceValid() const { return (_state < RESPONSE_END); } - virtual size_t _fillBuffer(uint8_t *buf, size_t maxLen) override; - size_t write(const uint8_t *data, size_t len); + AsyncResponseStream(const char* contentType, size_t bufferSize); + AsyncResponseStream(const String& contentType, size_t bufferSize) : AsyncResponseStream(contentType.c_str(), bufferSize) {} + bool _sourceValid() const override final { return (_state < RESPONSE_END); } + size_t _fillBuffer(uint8_t* buf, size_t maxLen) override final; + size_t write(const uint8_t* data, size_t len); size_t write(uint8_t data); using Print::write; }; diff --git a/src/WebResponses.cpp b/src/WebResponses.cpp index cca6b5324..bf8235e90 100644 --- a/src/WebResponses.cpp +++ b/src/WebResponses.cpp @@ -20,184 +20,270 @@ */ #include "ESPAsyncWebServer.h" #include "WebResponseImpl.h" -#include "cbuf.h" + +using namespace asyncsrv; // Since ESP8266 does not link memchr by default, here's its implementation. -void* memchr(void* ptr, int ch, size_t count) -{ +void* memchr(void* ptr, int ch, size_t count) { unsigned char* p = static_cast(ptr); - while(count--) - if(*p++ == static_cast(ch)) + while (count--) + if (*p++ == static_cast(ch)) return --p; return nullptr; } - /* * Abstract Response - * */ -const char* AsyncWebServerResponse::_responseCodeToString(int code) { + * + */ + +const char* AsyncWebServerResponse::responseCodeToString(int code) { switch (code) { - case 100: return "Continue"; - case 101: return "Switching Protocols"; - case 200: return "OK"; - case 201: return "Created"; - case 202: return "Accepted"; - case 203: return "Non-Authoritative Information"; - case 204: return "No Content"; - case 205: return "Reset Content"; - case 206: return "Partial Content"; - case 300: return "Multiple Choices"; - case 301: return "Moved Permanently"; - case 302: return "Found"; - case 303: return "See Other"; - case 304: return "Not Modified"; - case 305: return "Use Proxy"; - case 307: return "Temporary Redirect"; - case 400: return "Bad Request"; - case 401: return "Unauthorized"; - case 402: return "Payment Required"; - case 403: return "Forbidden"; - case 404: return "Not Found"; - case 405: return "Method Not Allowed"; - case 406: return "Not Acceptable"; - case 407: return "Proxy Authentication Required"; - case 408: return "Request Time-out"; - case 409: return "Conflict"; - case 410: return "Gone"; - case 411: return "Length Required"; - case 412: return "Precondition Failed"; - case 413: return "Request Entity Too Large"; - case 414: return "Request-URI Too Large"; - case 415: return "Unsupported Media Type"; - case 416: return "Requested range not satisfiable"; - case 417: return "Expectation Failed"; - case 500: return "Internal Server Error"; - case 501: return "Not Implemented"; - case 502: return "Bad Gateway"; - case 503: return "Service Unavailable"; - case 504: return "Gateway Time-out"; - case 505: return "HTTP Version not supported"; - default: return ""; + case 100: + return T_HTTP_CODE_100; + case 101: + return T_HTTP_CODE_101; + case 200: + return T_HTTP_CODE_200; + case 201: + return T_HTTP_CODE_201; + case 202: + return T_HTTP_CODE_202; + case 203: + return T_HTTP_CODE_203; + case 204: + return T_HTTP_CODE_204; + case 205: + return T_HTTP_CODE_205; + case 206: + return T_HTTP_CODE_206; + case 300: + return T_HTTP_CODE_300; + case 301: + return T_HTTP_CODE_301; + case 302: + return T_HTTP_CODE_302; + case 303: + return T_HTTP_CODE_303; + case 304: + return T_HTTP_CODE_304; + case 305: + return T_HTTP_CODE_305; + case 307: + return T_HTTP_CODE_307; + case 400: + return T_HTTP_CODE_400; + case 401: + return T_HTTP_CODE_401; + case 402: + return T_HTTP_CODE_402; + case 403: + return T_HTTP_CODE_403; + case 404: + return T_HTTP_CODE_404; + case 405: + return T_HTTP_CODE_405; + case 406: + return T_HTTP_CODE_406; + case 407: + return T_HTTP_CODE_407; + case 408: + return T_HTTP_CODE_408; + case 409: + return T_HTTP_CODE_409; + case 410: + return T_HTTP_CODE_410; + case 411: + return T_HTTP_CODE_411; + case 412: + return T_HTTP_CODE_412; + case 413: + return T_HTTP_CODE_413; + case 414: + return T_HTTP_CODE_414; + case 415: + return T_HTTP_CODE_415; + case 416: + return T_HTTP_CODE_416; + case 417: + return T_HTTP_CODE_417; + case 429: + return T_HTTP_CODE_429; + case 500: + return T_HTTP_CODE_500; + case 501: + return T_HTTP_CODE_501; + case 502: + return T_HTTP_CODE_502; + case 503: + return T_HTTP_CODE_503; + case 504: + return T_HTTP_CODE_504; + case 505: + return T_HTTP_CODE_505; + default: + return T_HTTP_CODE_ANY; } } AsyncWebServerResponse::AsyncWebServerResponse() - : _code(0) - , _headers(LinkedList([](AsyncWebHeader *h){ delete h; })) - , _contentType() - , _contentLength(0) - , _sendContentLength(true) - , _chunked(false) - , _headLength(0) - , _sentLength(0) - , _ackedLength(0) - , _writtenLength(0) - , _state(RESPONSE_SETUP) -{ - for(auto header: DefaultHeaders::Instance()) { - _headers.add(new AsyncWebHeader(header->name(), header->value())); + : _code(0), _contentType(), _contentLength(0), _sendContentLength(true), _chunked(false), _headLength(0), _sentLength(0), _ackedLength(0), _writtenLength(0), _state(RESPONSE_SETUP) { + for (const auto& header : DefaultHeaders::Instance()) { + _headers.emplace_back(header); } } -AsyncWebServerResponse::~AsyncWebServerResponse(){ - _headers.free(); -} - -void AsyncWebServerResponse::setCode(int code){ - if(_state == RESPONSE_SETUP) +void AsyncWebServerResponse::setCode(int code) { + if (_state == RESPONSE_SETUP) _code = code; } -void AsyncWebServerResponse::setContentLength(size_t len){ - if(_state == RESPONSE_SETUP) +void AsyncWebServerResponse::setContentLength(size_t len) { + if (_state == RESPONSE_SETUP && addHeader(T_Content_Length, len, true)) _contentLength = len; } -void AsyncWebServerResponse::setContentType(const String& type){ - if(_state == RESPONSE_SETUP) +void AsyncWebServerResponse::setContentType(const char* type) { + if (_state == RESPONSE_SETUP && addHeader(T_Content_Type, type, true)) _contentType = type; } -void AsyncWebServerResponse::addHeader(const String& name, const String& value){ - _headers.add(new AsyncWebHeader(name, value)); -} - -String AsyncWebServerResponse::_assembleHead(uint8_t version){ - if(version){ - addHeader("Accept-Ranges","none"); - if(_chunked) - addHeader("Transfer-Encoding","chunked"); +bool AsyncWebServerResponse::removeHeader(const char* name) { + for (auto i = _headers.begin(); i != _headers.end(); ++i) { + if (i->name().equalsIgnoreCase(name)) { + _headers.erase(i); + return true; + } } - String out = String(); - int bufSize = 300; - char buf[bufSize]; + return false; +} - snprintf(buf, bufSize, "HTTP/1.%d %d %s\r\n", version, _code, _responseCodeToString(_code)); - out.concat(buf); +const AsyncWebHeader* AsyncWebServerResponse::getHeader(const char* name) const { + auto iter = std::find_if(std::begin(_headers), std::end(_headers), [&name](const AsyncWebHeader& header) { return header.name().equalsIgnoreCase(name); }); + return (iter == std::end(_headers)) ? nullptr : &(*iter); +} - if(_sendContentLength) { - snprintf(buf, bufSize, "Content-Length: %d\r\n", _contentLength); - out.concat(buf); +bool AsyncWebServerResponse::addHeader(const char* name, const char* value, bool replaceExisting) { + for (auto i = _headers.begin(); i != _headers.end(); ++i) { + if (i->name().equalsIgnoreCase(name)) { + // header already set + if (replaceExisting) { + // remove, break and add the new one + _headers.erase(i); + break; + } else { + // do not update + return false; + } + } } - if(_contentType.length()) { - snprintf(buf, bufSize, "Content-Type: %s\r\n", _contentType.c_str()); - out.concat(buf); + // header was not found found, or existing one was removed + _headers.emplace_back(name, value); + return true; +} + +void AsyncWebServerResponse::_assembleHead(String& buffer, uint8_t version) { + if (version) { + addHeader(T_Accept_Ranges, T_none, false); + if (_chunked) + addHeader(T_Transfer_Encoding, T_chunked, false); } - for(const auto& header: _headers){ - snprintf(buf, bufSize, "%s: %s\r\n", header->name().c_str(), header->value().c_str()); - out.concat(buf); + if (_sendContentLength) + addHeader(T_Content_Length, String(_contentLength), false); + + if (_contentType.length()) + addHeader(T_Content_Type, _contentType.c_str(), false); + + // precompute buffer size to avoid reallocations by String class + size_t len = 0; + len += 50; // HTTP/1.1 200 \r\n + for (const auto& header : _headers) + len += header.name().length() + header.value().length() + 4; + + // prepare buffer + buffer.reserve(len); + + // HTTP header +#ifdef ESP8266 + buffer.concat(PSTR("HTTP/1.")); +#else + buffer.concat("HTTP/1."); +#endif + buffer.concat(version); + buffer.concat(' '); + buffer.concat(_code); + buffer.concat(' '); + buffer.concat(responseCodeToString(_code)); + buffer.concat(T_rn); + + // Add headers + for (const auto& header : _headers) { + buffer.concat(header.name()); +#ifdef ESP8266 + buffer.concat(PSTR(": ")); +#else + buffer.concat(": "); +#endif + buffer.concat(header.value()); + buffer.concat(T_rn); } - _headers.free(); - out.concat("\r\n"); - _headLength = out.length(); - return out; + buffer.concat(T_rn); + _headLength = buffer.length(); } bool AsyncWebServerResponse::_started() const { return _state > RESPONSE_SETUP; } bool AsyncWebServerResponse::_finished() const { return _state > RESPONSE_WAIT_ACK; } bool AsyncWebServerResponse::_failed() const { return _state == RESPONSE_FAILED; } bool AsyncWebServerResponse::_sourceValid() const { return false; } -void AsyncWebServerResponse::_respond(AsyncWebServerRequest *request){ _state = RESPONSE_END; request->client()->close(); } -size_t AsyncWebServerResponse::_ack(AsyncWebServerRequest *request, size_t len, uint32_t time){ return 0; } +void AsyncWebServerResponse::_respond(AsyncWebServerRequest* request) { + _state = RESPONSE_END; + request->client()->close(); +} +size_t AsyncWebServerResponse::_ack(AsyncWebServerRequest* request, size_t len, uint32_t time) { + (void)request; + (void)len; + (void)time; + return 0; +} /* * String/Code Response * */ -AsyncBasicResponse::AsyncBasicResponse(int code, const String& contentType, const String& content){ +AsyncBasicResponse::AsyncBasicResponse(int code, const char* contentType, const char* content) { _code = code; _content = content; _contentType = contentType; - if(_content.length()){ + if (_content.length()) { _contentLength = _content.length(); - if(!_contentType.length()) - _contentType = "text/plain"; + if (!_contentType.length()) + _contentType = T_text_plain; } - addHeader("Connection","close"); + addHeader(T_Connection, T_close, false); } -void AsyncBasicResponse::_respond(AsyncWebServerRequest *request){ +void AsyncBasicResponse::_respond(AsyncWebServerRequest* request) { _state = RESPONSE_HEADERS; - String out = _assembleHead(request->version()); + String out; + _assembleHead(out, request->version()); size_t outLen = out.length(); size_t space = request->client()->space(); - if(!_contentLength && space >= outLen){ + if (!_contentLength && space >= outLen) { _writtenLength += request->client()->write(out.c_str(), outLen); _state = RESPONSE_WAIT_ACK; - } else if(_contentLength && space >= outLen + _contentLength){ + } else if (_contentLength && space >= outLen + _contentLength) { out += _content; outLen += _contentLength; _writtenLength += request->client()->write(out.c_str(), outLen); _state = RESPONSE_WAIT_ACK; - } else if(space && space < outLen){ + } else if (space && space < outLen) { String partial = out.substring(0, space); _content = out.substring(space) + _content; _contentLength += outLen - space; _writtenLength += request->client()->write(partial.c_str(), partial.length()); _state = RESPONSE_CONTENT; - } else if(space > outLen && space < (outLen + _contentLength)){ + } else if (space > outLen && space < (outLen + _contentLength)) { size_t shift = space - outLen; outLen += shift; _sentLength += shift; @@ -212,173 +298,201 @@ void AsyncBasicResponse::_respond(AsyncWebServerRequest *request){ } } -size_t AsyncBasicResponse::_ack(AsyncWebServerRequest *request, size_t len, uint32_t time){ +size_t AsyncBasicResponse::_ack(AsyncWebServerRequest* request, size_t len, uint32_t time) { + (void)time; _ackedLength += len; - if(_state == RESPONSE_CONTENT){ + if (_state == RESPONSE_CONTENT) { size_t available = _contentLength - _sentLength; size_t space = request->client()->space(); - //we can fit in this packet - if(space > available){ + // we can fit in this packet + if (space > available) { _writtenLength += request->client()->write(_content.c_str(), available); - _content = String(); + _content = emptyString; _state = RESPONSE_WAIT_ACK; return available; } - //send some data, the rest on ack + // send some data, the rest on ack String out = _content.substring(0, space); _content = _content.substring(space); _sentLength += space; _writtenLength += request->client()->write(out.c_str(), space); return space; - } else if(_state == RESPONSE_WAIT_ACK){ - if(_ackedLength >= _writtenLength){ + } else if (_state == RESPONSE_WAIT_ACK) { + if (_ackedLength >= _writtenLength) { _state = RESPONSE_END; } } return 0; } - /* * Abstract Response * */ -AsyncAbstractResponse::AsyncAbstractResponse(AwsTemplateProcessor callback): _callback(callback) -{ +AsyncAbstractResponse::AsyncAbstractResponse(AwsTemplateProcessor callback) : _callback(callback) { // In case of template processing, we're unable to determine real response size - if(callback) { + if (callback) { _contentLength = 0; _sendContentLength = false; _chunked = true; } } -void AsyncAbstractResponse::_respond(AsyncWebServerRequest *request){ - addHeader("Connection","close"); - _head = _assembleHead(request->version()); +void AsyncAbstractResponse::_respond(AsyncWebServerRequest* request) { + addHeader(T_Connection, T_close, false); + _assembleHead(_head, request->version()); _state = RESPONSE_HEADERS; _ack(request, 0, 0); } -size_t AsyncAbstractResponse::_ack(AsyncWebServerRequest *request, size_t len, uint32_t time){ - if(!_sourceValid()){ +size_t AsyncAbstractResponse::_ack(AsyncWebServerRequest* request, size_t len, uint32_t time) { + (void)time; + if (!_sourceValid()) { _state = RESPONSE_FAILED; request->client()->close(); return 0; } + // return a credit for each chunk of acked data (polls does not give any credits) + if (len) + ++_in_flight_credit; + + // for chunked responses ignore acks if there are no _in_flight_credits left + if (_chunked && !_in_flight_credit) { +#ifdef ESP32 + log_d("(chunk) out of in-flight credits"); +#endif + return 0; + } + _ackedLength += len; + _in_flight -= (_in_flight > len) ? len : _in_flight; + // get the size of available sock space size_t space = request->client()->space(); size_t headLen = _head.length(); - if(_state == RESPONSE_HEADERS){ - if(space >= headLen){ + if (_state == RESPONSE_HEADERS) { + if (space >= headLen) { _state = RESPONSE_CONTENT; space -= headLen; } else { String out = _head.substring(0, space); _head = _head.substring(space); _writtenLength += request->client()->write(out.c_str(), out.length()); + _in_flight += out.length(); + --_in_flight_credit; // take a credit return out.length(); } } - if(_state == RESPONSE_CONTENT){ + if (_state == RESPONSE_CONTENT) { + // for response data we need to control the queue and in-flight fragmentation. Sending small chunks could give low latency, + // but flood asynctcp's queue and fragment socket buffer space for large responses. + // Let's ignore polled acks and acks in case when we have more in-flight data then the available socket buff space. + // That way we could balance on having half the buffer in-flight while another half is filling up, while minimizing events in asynctcp q + if (_in_flight > space) { + // log_d("defer user call %u/%u", _in_flight, space); + // take the credit back since we are ignoring this ack and rely on other inflight data + if (len) + --_in_flight_credit; + return 0; + } + size_t outLen; - if(_chunked){ - if(space <= 8){ + if (_chunked) { + if (space <= 8) { return 0; } + outLen = space; - } else if(!_sendContentLength){ + } else if (!_sendContentLength) { outLen = space; } else { - outLen = ((_contentLength - _sentLength) > space)?space:(_contentLength - _sentLength); + outLen = ((_contentLength - _sentLength) > space) ? space : (_contentLength - _sentLength); } - uint8_t *buf = (uint8_t *)malloc(outLen+headLen); + uint8_t* buf = (uint8_t*)malloc(outLen + headLen); if (!buf) { // os_printf("_ack malloc %d failed\n", outLen+headLen); return 0; } - if(headLen){ + if (headLen) { memcpy(buf, _head.c_str(), _head.length()); } size_t readLen = 0; - if(_chunked){ + if (_chunked) { // HTTP 1.1 allows leading zeros in chunk length. Or spaces may be added. // See RFC2616 sections 2, 3.6.1. - readLen = _fillBufferAndProcessTemplates(buf+headLen+6, outLen - 8); - if(readLen == RESPONSE_TRY_AGAIN){ - free(buf); - return 0; + readLen = _fillBufferAndProcessTemplates(buf + headLen + 6, outLen - 8); + if (readLen == RESPONSE_TRY_AGAIN) { + free(buf); + return 0; } - outLen = sprintf((char*)buf+headLen, "%x", readLen) + headLen; - while(outLen < headLen + 4) buf[outLen++] = ' '; + outLen = sprintf((char*)buf + headLen, "%04x", readLen) + headLen; buf[outLen++] = '\r'; buf[outLen++] = '\n'; outLen += readLen; buf[outLen++] = '\r'; buf[outLen++] = '\n'; } else { - readLen = _fillBufferAndProcessTemplates(buf+headLen, outLen); - if(readLen == RESPONSE_TRY_AGAIN){ - free(buf); - return 0; + readLen = _fillBufferAndProcessTemplates(buf + headLen, outLen); + if (readLen == RESPONSE_TRY_AGAIN) { + free(buf); + return 0; } outLen = readLen + headLen; } - if(headLen){ - _head = String(); + if (headLen) { + _head = emptyString; } - if(outLen){ - _writtenLength += request->client()->write((const char*)buf, outLen); + if (outLen) { + _writtenLength += request->client()->write((const char*)buf, outLen); + _in_flight += outLen; + --_in_flight_credit; // take a credit } - if(_chunked){ - _sentLength += readLen; + if (_chunked) { + _sentLength += readLen; } else { - _sentLength += outLen - headLen; + _sentLength += outLen - headLen; } free(buf); - if((_chunked && readLen == 0) || (!_sendContentLength && outLen == 0) || (!_chunked && _sentLength == _contentLength)){ + if ((_chunked && readLen == 0) || (!_sendContentLength && outLen == 0) || (!_chunked && _sentLength == _contentLength)) { _state = RESPONSE_WAIT_ACK; } return outLen; - } else if(_state == RESPONSE_WAIT_ACK){ - if(!_sendContentLength || _ackedLength >= _writtenLength){ + } else if (_state == RESPONSE_WAIT_ACK) { + if (!_sendContentLength || _ackedLength >= _writtenLength) { _state = RESPONSE_END; - if(!_chunked && !_sendContentLength) + if (!_chunked && !_sendContentLength) request->client()->close(true); } } return 0; } -size_t AsyncAbstractResponse::_readDataFromCacheOrContent(uint8_t* data, const size_t len) -{ - // If we have something in cache, copy it to buffer - const size_t readFromCache = std::min(len, _cache.size()); - if(readFromCache) { - memcpy(data, _cache.data(), readFromCache); - _cache.erase(_cache.begin(), _cache.begin() + readFromCache); - } - // If we need to read more... - const size_t needFromFile = len - readFromCache; - const size_t readFromContent = _fillBuffer(data + readFromCache, needFromFile); - return readFromCache + readFromContent; +size_t AsyncAbstractResponse::_readDataFromCacheOrContent(uint8_t* data, const size_t len) { + // If we have something in cache, copy it to buffer + const size_t readFromCache = std::min(len, _cache.size()); + if (readFromCache) { + memcpy(data, _cache.data(), readFromCache); + _cache.erase(_cache.begin(), _cache.begin() + readFromCache); + } + // If we need to read more... + const size_t needFromFile = len - readFromCache; + const size_t readFromContent = _fillBuffer(data + readFromCache, needFromFile); + return readFromCache + readFromContent; } -size_t AsyncAbstractResponse::_fillBufferAndProcessTemplates(uint8_t* data, size_t len) -{ - if(!_callback) +size_t AsyncAbstractResponse::_fillBufferAndProcessTemplates(uint8_t* data, size_t len) { + if (!_callback) return _fillBuffer(data, len); const size_t originalLen = len; @@ -386,16 +500,16 @@ size_t AsyncAbstractResponse::_fillBufferAndProcessTemplates(uint8_t* data, size // Now we've read 'len' bytes, either from cache or from file // Search for template placeholders uint8_t* pTemplateStart = data; - while((pTemplateStart < &data[len]) && (pTemplateStart = (uint8_t*)memchr(pTemplateStart, TEMPLATE_PLACEHOLDER, &data[len - 1] - pTemplateStart + 1))) { // data[0] ... data[len - 1] + while ((pTemplateStart < &data[len]) && (pTemplateStart = (uint8_t*)memchr(pTemplateStart, TEMPLATE_PLACEHOLDER, &data[len - 1] - pTemplateStart + 1))) { // data[0] ... data[len - 1] uint8_t* pTemplateEnd = (pTemplateStart < &data[len - 1]) ? (uint8_t*)memchr(pTemplateStart + 1, TEMPLATE_PLACEHOLDER, &data[len - 1] - pTemplateStart) : nullptr; // temporary buffer to hold parameter name uint8_t buf[TEMPLATE_PARAM_NAME_LENGTH + 1]; String paramName; // If closing placeholder is found: - if(pTemplateEnd) { + if (pTemplateEnd) { // prepare argument to callback - const size_t paramNameLength = std::min(sizeof(buf) - 1, (unsigned int)(pTemplateEnd - pTemplateStart - 1)); - if(paramNameLength) { + const size_t paramNameLength = std::min((size_t)sizeof(buf) - 1, (size_t)(pTemplateEnd - pTemplateStart - 1)); + if (paramNameLength) { memcpy(buf, pTemplateStart + 1, paramNameLength); buf[paramNameLength] = 0; paramName = String(reinterpret_cast(buf)); @@ -405,32 +519,29 @@ size_t AsyncAbstractResponse::_fillBufferAndProcessTemplates(uint8_t* data, size len += _readDataFromCacheOrContent(&data[len - 1], 1) - 1; ++pTemplateStart; } - } else if(&data[len - 1] - pTemplateStart + 1 < TEMPLATE_PARAM_NAME_LENGTH + 2) { // closing placeholder not found, check if it's in the remaining file data + } else if (&data[len - 1] - pTemplateStart + 1 < TEMPLATE_PARAM_NAME_LENGTH + 2) { // closing placeholder not found, check if it's in the remaining file data memcpy(buf, pTemplateStart + 1, &data[len - 1] - pTemplateStart); const size_t readFromCacheOrContent = _readDataFromCacheOrContent(buf + (&data[len - 1] - pTemplateStart), TEMPLATE_PARAM_NAME_LENGTH + 2 - (&data[len - 1] - pTemplateStart + 1)); - if(readFromCacheOrContent) { + if (readFromCacheOrContent) { pTemplateEnd = (uint8_t*)memchr(buf + (&data[len - 1] - pTemplateStart), TEMPLATE_PLACEHOLDER, readFromCacheOrContent); - if(pTemplateEnd) { + if (pTemplateEnd) { // prepare argument to callback *pTemplateEnd = 0; paramName = String(reinterpret_cast(buf)); // Copy remaining read-ahead data into cache _cache.insert(_cache.begin(), pTemplateEnd + 1, buf + (&data[len - 1] - pTemplateStart) + readFromCacheOrContent); pTemplateEnd = &data[len - 1]; - } - else // closing placeholder not found in file data, store found percent symbol as is and advance to the next position + } else // closing placeholder not found in file data, store found percent symbol as is and advance to the next position { // but first, store read file data in cache _cache.insert(_cache.begin(), buf + (&data[len - 1] - pTemplateStart), buf + (&data[len - 1] - pTemplateStart) + readFromCacheOrContent); ++pTemplateStart; } - } - else // closing placeholder not found in content data, store found percent symbol as is and advance to the next position + } else // closing placeholder not found in content data, store found percent symbol as is and advance to the next position ++pTemplateStart; - } - else // closing placeholder not found in content data, store found percent symbol as is and advance to the next position + } else // closing placeholder not found in content data, store found percent symbol as is and advance to the next position ++pTemplateStart; - if(paramName.length()) { + if (paramName.length()) { // call callback and replace with result. // Everything in range [pTemplateStart, pTemplateEnd] can be safely replaced with parameter value. // Data after pTemplateEnd may need to be moved. @@ -442,20 +553,21 @@ size_t AsyncAbstractResponse::_fillBufferAndProcessTemplates(uint8_t* data, size const size_t numBytesCopied = std::min(pvlen, static_cast(&data[originalLen - 1] - pTemplateStart + 1)); // make room for param value // 1. move extra data to cache if parameter value is longer than placeholder AND if there is no room to store - if((pTemplateEnd + 1 < pTemplateStart + numBytesCopied) && (originalLen - (pTemplateStart + numBytesCopied - pTemplateEnd - 1) < len)) { + if ((pTemplateEnd + 1 < pTemplateStart + numBytesCopied) && (originalLen - (pTemplateStart + numBytesCopied - pTemplateEnd - 1) < len)) { _cache.insert(_cache.begin(), &data[originalLen - (pTemplateStart + numBytesCopied - pTemplateEnd - 1)], &data[len]); - //2. parameter value is longer than placeholder text, push the data after placeholder which not saved into cache further to the end + // 2. parameter value is longer than placeholder text, push the data after placeholder which not saved into cache further to the end memmove(pTemplateStart + numBytesCopied, pTemplateEnd + 1, &data[originalLen] - pTemplateStart - numBytesCopied); - } else if(pTemplateEnd + 1 != pTemplateStart + numBytesCopied) - //2. Either parameter value is shorter than placeholder text OR there is enough free space in buffer to fit. - // Move the entire data after the placeholder + len = originalLen; // fix issue with truncated data, not sure if it has any side effects + } else if (pTemplateEnd + 1 != pTemplateStart + numBytesCopied) + // 2. Either parameter value is shorter than placeholder text OR there is enough free space in buffer to fit. + // Move the entire data after the placeholder memmove(pTemplateStart + numBytesCopied, pTemplateEnd + 1, &data[len] - pTemplateEnd - 1); // 3. replace placeholder with actual value memcpy(pTemplateStart, pvstr, numBytesCopied); // If result is longer than buffer, copy the remainder into cache (this could happen only if placeholder text itself did not fit entirely in buffer) - if(numBytesCopied < pvlen) { + if (numBytesCopied < pvlen) { _cache.insert(_cache.begin(), pvstr + numBytesCopied, pvstr + pvlen); - } else if(pTemplateStart + numBytesCopied < pTemplateEnd + 1) { // result is copied fully; if result is shorter than placeholder text... + } else if (pTemplateStart + numBytesCopied < pTemplateEnd + 1) { // result is copied fully; if result is shorter than placeholder text... // there is some free room, fill it from cache const size_t roomFreed = pTemplateEnd + 1 - pTemplateStart - numBytesCopied; const size_t totalFreeRoom = originalLen - len + roomFreed; @@ -469,78 +581,100 @@ size_t AsyncAbstractResponse::_fillBufferAndProcessTemplates(uint8_t* data, size return len; } - /* * File Response * */ -AsyncFileResponse::~AsyncFileResponse(){ - if(_content) - _content.close(); -} - -void AsyncFileResponse::_setContentType(const String& path){ - if (path.endsWith(".html")) _contentType = "text/html"; - else if (path.endsWith(".htm")) _contentType = "text/html"; - else if (path.endsWith(".css")) _contentType = "text/css"; - else if (path.endsWith(".json")) _contentType = "application/json"; - else if (path.endsWith(".js")) _contentType = "application/javascript"; - else if (path.endsWith(".png")) _contentType = "image/png"; - else if (path.endsWith(".gif")) _contentType = "image/gif"; - else if (path.endsWith(".jpg")) _contentType = "image/jpeg"; - else if (path.endsWith(".ico")) _contentType = "image/x-icon"; - else if (path.endsWith(".svg")) _contentType = "image/svg+xml"; - else if (path.endsWith(".eot")) _contentType = "font/eot"; - else if (path.endsWith(".woff")) _contentType = "font/woff"; - else if (path.endsWith(".woff2")) _contentType = "font/woff2"; - else if (path.endsWith(".ttf")) _contentType = "font/ttf"; - else if (path.endsWith(".xml")) _contentType = "text/xml"; - else if (path.endsWith(".pdf")) _contentType = "application/pdf"; - else if (path.endsWith(".zip")) _contentType = "application/zip"; - else if(path.endsWith(".gz")) _contentType = "application/x-gzip"; - else _contentType = "text/plain"; -} - -AsyncFileResponse::AsyncFileResponse(FS &fs, const String& path, const String& contentType, bool download, AwsTemplateProcessor callback): AsyncAbstractResponse(callback){ +void AsyncFileResponse::_setContentTypeFromPath(const String& path) { +#if HAVE_EXTERN_GET_Content_Type_FUNCTION + #ifndef ESP8266 + extern const char* getContentType(const String& path); + #else + extern const __FlashStringHelper* getContentType(const String& path); + #endif + _contentType = getContentType(path); +#else + if (path.endsWith(T__html)) + _contentType = T_text_html; + else if (path.endsWith(T__htm)) + _contentType = T_text_html; + else if (path.endsWith(T__css)) + _contentType = T_text_css; + else if (path.endsWith(T__json)) + _contentType = T_application_json; + else if (path.endsWith(T__js)) + _contentType = T_application_javascript; + else if (path.endsWith(T__png)) + _contentType = T_image_png; + else if (path.endsWith(T__gif)) + _contentType = T_image_gif; + else if (path.endsWith(T__jpg)) + _contentType = T_image_jpeg; + else if (path.endsWith(T__ico)) + _contentType = T_image_x_icon; + else if (path.endsWith(T__svg)) + _contentType = T_image_svg_xml; + else if (path.endsWith(T__eot)) + _contentType = T_font_eot; + else if (path.endsWith(T__woff)) + _contentType = T_font_woff; + else if (path.endsWith(T__woff2)) + _contentType = T_font_woff2; + else if (path.endsWith(T__ttf)) + _contentType = T_font_ttf; + else if (path.endsWith(T__xml)) + _contentType = T_text_xml; + else if (path.endsWith(T__pdf)) + _contentType = T_application_pdf; + else if (path.endsWith(T__zip)) + _contentType = T_application_zip; + else if (path.endsWith(T__gz)) + _contentType = T_application_x_gzip; + else + _contentType = T_text_plain; +#endif +} + +AsyncFileResponse::AsyncFileResponse(FS& fs, const String& path, const char* contentType, bool download, AwsTemplateProcessor callback) : AsyncAbstractResponse(callback) { _code = 200; _path = path; - if(!download && !fs.exists(_path) && fs.exists(_path+".gz")){ - _path = _path+".gz"; - addHeader("Content-Encoding", "gzip"); + if (!download && !fs.exists(_path) && fs.exists(_path + T__gz)) { + _path = _path + T__gz; + addHeader(T_Content_Encoding, T_gzip, false); _callback = nullptr; // Unable to process zipped templates _sendContentLength = true; _chunked = false; } - _content = fs.open(_path, "r"); + _content = fs.open(_path, fs::FileOpenMode::read); _contentLength = _content.size(); - if(contentType == "") - _setContentType(path); + if (strlen(contentType) == 0) + _setContentTypeFromPath(path); else _contentType = contentType; int filenameStart = path.lastIndexOf('/') + 1; - char buf[26+path.length()-filenameStart]; + char buf[26 + path.length() - filenameStart]; char* filename = (char*)path.c_str() + filenameStart; - if(download) { + if (download) { // set filename and force download - snprintf(buf, sizeof (buf), "attachment; filename=\"%s\"", filename); + snprintf_P(buf, sizeof(buf), PSTR("attachment; filename=\"%s\""), filename); } else { // set filename and force rendering - snprintf(buf, sizeof (buf), "inline; filename=\"%s\"", filename); + snprintf_P(buf, sizeof(buf), PSTR("inline")); } - addHeader("Content-Disposition", buf); + addHeader(T_Content_Disposition, buf, false); } -AsyncFileResponse::AsyncFileResponse(File content, const String& path, const String& contentType, bool download, AwsTemplateProcessor callback): AsyncAbstractResponse(callback){ +AsyncFileResponse::AsyncFileResponse(File content, const String& path, const char* contentType, bool download, AwsTemplateProcessor callback) : AsyncAbstractResponse(callback) { _code = 200; _path = path; - if(!download && String(content.name()).endsWith(".gz") && !path.endsWith(".gz")){ - addHeader("Content-Encoding", "gzip"); + if (!download && String(content.name()).endsWith(T__gz) && !path.endsWith(T__gz)) { + addHeader(T_Content_Encoding, T_gzip, false); _callback = nullptr; // Unable to process gzipped templates _sendContentLength = true; _chunked = false; @@ -549,24 +683,24 @@ AsyncFileResponse::AsyncFileResponse(File content, const String& path, const Str _content = content; _contentLength = _content.size(); - if(contentType == "") - _setContentType(path); + if (strlen(contentType) == 0) + _setContentTypeFromPath(path); else _contentType = contentType; int filenameStart = path.lastIndexOf('/') + 1; - char buf[26+path.length()-filenameStart]; + char buf[26 + path.length() - filenameStart]; char* filename = (char*)path.c_str() + filenameStart; - if(download) { - snprintf(buf, sizeof (buf), "attachment; filename=\"%s\"", filename); + if (download) { + snprintf_P(buf, sizeof(buf), PSTR("attachment; filename=\"%s\""), filename); } else { - snprintf(buf, sizeof (buf), "inline; filename=\"%s\"", filename); + snprintf_P(buf, sizeof(buf), PSTR("inline")); } - addHeader("Content-Disposition", buf); + addHeader(T_Content_Disposition, buf, false); } -size_t AsyncFileResponse::_fillBuffer(uint8_t *data, size_t len){ +size_t AsyncFileResponse::_fillBuffer(uint8_t* data, size_t len) { return _content.read(data, len); } @@ -574,18 +708,18 @@ size_t AsyncFileResponse::_fillBuffer(uint8_t *data, size_t len){ * Stream Response * */ -AsyncStreamResponse::AsyncStreamResponse(Stream &stream, const String& contentType, size_t len, AwsTemplateProcessor callback): AsyncAbstractResponse(callback) { +AsyncStreamResponse::AsyncStreamResponse(Stream& stream, const char* contentType, size_t len, AwsTemplateProcessor callback) : AsyncAbstractResponse(callback) { _code = 200; _content = &stream; _contentLength = len; _contentType = contentType; } -size_t AsyncStreamResponse::_fillBuffer(uint8_t *data, size_t len){ +size_t AsyncStreamResponse::_fillBuffer(uint8_t* data, size_t len) { size_t available = _content->available(); - size_t outLen = (available > len)?len:available; + size_t outLen = (available > len) ? len : available; size_t i; - for(i=0;iread(); return outLen; } @@ -594,20 +728,20 @@ size_t AsyncStreamResponse::_fillBuffer(uint8_t *data, size_t len){ * Callback Response * */ -AsyncCallbackResponse::AsyncCallbackResponse(const String& contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback): AsyncAbstractResponse(templateCallback) { +AsyncCallbackResponse::AsyncCallbackResponse(const char* contentType, size_t len, AwsResponseFiller callback, AwsTemplateProcessor templateCallback) : AsyncAbstractResponse(templateCallback) { _code = 200; _content = callback; _contentLength = len; - if(!len) + if (!len) _sendContentLength = false; _contentType = contentType; _filledLength = 0; } -size_t AsyncCallbackResponse::_fillBuffer(uint8_t *data, size_t len){ +size_t AsyncCallbackResponse::_fillBuffer(uint8_t* data, size_t len) { size_t ret = _content(data, len, _filledLength); - if(ret != RESPONSE_TRY_AGAIN){ - _filledLength += ret; + if (ret != RESPONSE_TRY_AGAIN) { + _filledLength += ret; } return ret; } @@ -616,7 +750,7 @@ size_t AsyncCallbackResponse::_fillBuffer(uint8_t *data, size_t len){ * Chunked Response * */ -AsyncChunkedResponse::AsyncChunkedResponse(const String& contentType, AwsResponseFiller callback, AwsTemplateProcessor processorCallback): AsyncAbstractResponse(processorCallback) { +AsyncChunkedResponse::AsyncChunkedResponse(const char* contentType, AwsResponseFiller callback, AwsTemplateProcessor processorCallback) : AsyncAbstractResponse(processorCallback) { _code = 200; _content = callback; _contentLength = 0; @@ -626,10 +760,10 @@ AsyncChunkedResponse::AsyncChunkedResponse(const String& contentType, AwsRespons _filledLength = 0; } -size_t AsyncChunkedResponse::_fillBuffer(uint8_t *data, size_t len){ +size_t AsyncChunkedResponse::_fillBuffer(uint8_t* data, size_t len) { size_t ret = _content(data, len, _filledLength); - if(ret != RESPONSE_TRY_AGAIN){ - _filledLength += ret; + if (ret != RESPONSE_TRY_AGAIN) { + _filledLength += ret; } return ret; } @@ -638,7 +772,7 @@ size_t AsyncChunkedResponse::_fillBuffer(uint8_t *data, size_t len){ * Progmem Response * */ -AsyncProgmemResponse::AsyncProgmemResponse(int code, const String& contentType, const uint8_t * content, size_t len, AwsTemplateProcessor callback): AsyncAbstractResponse(callback) { +AsyncProgmemResponse::AsyncProgmemResponse(int code, const char* contentType, const uint8_t* content, size_t len, AwsTemplateProcessor callback) : AsyncAbstractResponse(callback) { _code = code; _content = content; _contentType = contentType; @@ -646,7 +780,7 @@ AsyncProgmemResponse::AsyncProgmemResponse(int code, const String& contentType, _readLength = 0; } -size_t AsyncProgmemResponse::_fillBuffer(uint8_t *data, size_t len){ +size_t AsyncProgmemResponse::_fillBuffer(uint8_t* data, size_t len) { size_t left = _contentLength - _readLength; if (left > len) { memcpy_P(data, _content + _readLength, len); @@ -658,39 +792,29 @@ size_t AsyncProgmemResponse::_fillBuffer(uint8_t *data, size_t len){ return left; } - /* * Response Stream (You can print/write/printf to it, up to the contentLen bytes) * */ -AsyncResponseStream::AsyncResponseStream(const String& contentType, size_t bufferSize){ +AsyncResponseStream::AsyncResponseStream(const char* contentType, size_t bufferSize) { _code = 200; _contentLength = 0; _contentType = contentType; - _content = new cbuf(bufferSize); -} - -AsyncResponseStream::~AsyncResponseStream(){ - delete _content; + _content.reserve(bufferSize); } -size_t AsyncResponseStream::_fillBuffer(uint8_t *buf, size_t maxLen){ - return _content->read((char*)buf, maxLen); +size_t AsyncResponseStream::_fillBuffer(uint8_t* buf, size_t maxLen) { + return _content.readBytes((char*)buf, maxLen); } -size_t AsyncResponseStream::write(const uint8_t *data, size_t len){ - if(_started()) +size_t AsyncResponseStream::write(const uint8_t* data, size_t len) { + if (_started()) return 0; - - if(len > _content->room()){ - size_t needed = len - _content->room(); - _content->resizeAdd(needed); - } - size_t written = _content->write((const char*)data, len); + size_t written = _content.write(data, len); _contentLength += written; return written; } -size_t AsyncResponseStream::write(uint8_t data){ +size_t AsyncResponseStream::write(uint8_t data) { return write(&data, 1); } diff --git a/src/WebServer.cpp b/src/WebServer.cpp index 95c2dd69f..ebf126a25 100644 --- a/src/WebServer.cpp +++ b/src/WebServer.cpp @@ -21,110 +21,143 @@ #include "ESPAsyncWebServer.h" #include "WebHandlerImpl.h" -bool ON_STA_FILTER(AsyncWebServerRequest *request) { +using namespace asyncsrv; + +bool ON_STA_FILTER(AsyncWebServerRequest* request) { +#ifndef CONFIG_IDF_TARGET_ESP32H2 return WiFi.localIP() == request->client()->localIP(); +#else + return false; +#endif } -bool ON_AP_FILTER(AsyncWebServerRequest *request) { +bool ON_AP_FILTER(AsyncWebServerRequest* request) { +#ifndef CONFIG_IDF_TARGET_ESP32H2 return WiFi.localIP() != request->client()->localIP(); +#else + return false; +#endif } +#ifndef HAVE_FS_FILE_OPEN_MODE +const char* fs::FileOpenMode::read = "r"; +const char* fs::FileOpenMode::write = "w"; +const char* fs::FileOpenMode::append = "a"; +#endif AsyncWebServer::AsyncWebServer(uint16_t port) - : _server(port) - , _rewrites(LinkedList([](AsyncWebRewrite* r){ delete r; })) - , _handlers(LinkedList([](AsyncWebHandler* h){ delete h; })) -{ + : _server(port) { _catchAllHandler = new AsyncCallbackWebHandler(); - if(_catchAllHandler == NULL) + if (_catchAllHandler == NULL) return; - _server.onClient([](void *s, AsyncClient* c){ - if(c == NULL) + _server.onClient([](void* s, AsyncClient* c) { + if (c == NULL) return; c->setRxTimeout(3); - AsyncWebServerRequest *r = new AsyncWebServerRequest((AsyncWebServer*)s, c); - if(r == NULL){ - c->close(true); - c->free(); + AsyncWebServerRequest* r = new AsyncWebServerRequest((AsyncWebServer*)s, c); + if (r == NULL) { + c->abort(); delete c; } - }, this); + }, + this); } -AsyncWebServer::~AsyncWebServer(){ - reset(); +AsyncWebServer::~AsyncWebServer() { + reset(); end(); - if(_catchAllHandler) delete _catchAllHandler; + if (_catchAllHandler) + delete _catchAllHandler; } -AsyncWebRewrite& AsyncWebServer::addRewrite(AsyncWebRewrite* rewrite){ - _rewrites.add(rewrite); - return *rewrite; +AsyncWebRewrite& AsyncWebServer::addRewrite(std::shared_ptr rewrite) { + _rewrites.emplace_back(rewrite); + return *_rewrites.back().get(); } -bool AsyncWebServer::removeRewrite(AsyncWebRewrite *rewrite){ - return _rewrites.remove(rewrite); +AsyncWebRewrite& AsyncWebServer::addRewrite(AsyncWebRewrite* rewrite) { + _rewrites.emplace_back(rewrite); + return *_rewrites.back().get(); } -AsyncWebRewrite& AsyncWebServer::rewrite(const char* from, const char* to){ - return addRewrite(new AsyncWebRewrite(from, to)); +bool AsyncWebServer::removeRewrite(AsyncWebRewrite* rewrite) { + return removeRewrite(rewrite->from().c_str(), rewrite->toUrl().c_str()); } -AsyncWebHandler& AsyncWebServer::addHandler(AsyncWebHandler* handler){ - _handlers.add(handler); - return *handler; +bool AsyncWebServer::removeRewrite(const char* from, const char* to) { + for (auto r = _rewrites.begin(); r != _rewrites.end(); ++r) { + if (r->get()->from() == from && r->get()->toUrl() == to) { + _rewrites.erase(r); + return true; + } + } + return false; +} + +AsyncWebRewrite& AsyncWebServer::rewrite(const char* from, const char* to) { + _rewrites.emplace_back(std::make_shared(from, to)); + return *_rewrites.back().get(); } -bool AsyncWebServer::removeHandler(AsyncWebHandler *handler){ - return _handlers.remove(handler); +AsyncWebHandler& AsyncWebServer::addHandler(AsyncWebHandler* handler) { + _handlers.emplace_back(handler); + return *(_handlers.back().get()); } -void AsyncWebServer::begin(){ +bool AsyncWebServer::removeHandler(AsyncWebHandler* handler) { + for (auto i = _handlers.begin(); i != _handlers.end(); ++i) { + if (i->get() == handler) { + _handlers.erase(i); + return true; + } + } + return false; +} + +void AsyncWebServer::begin() { _server.setNoDelay(true); _server.begin(); } -void AsyncWebServer::end(){ +void AsyncWebServer::end() { _server.end(); } #if ASYNC_TCP_SSL_ENABLED -void AsyncWebServer::onSslFileRequest(AcSSlFileHandler cb, void* arg){ +void AsyncWebServer::onSslFileRequest(AcSSlFileHandler cb, void* arg) { _server.onSslFileRequest(cb, arg); } -void AsyncWebServer::beginSecure(const char *cert, const char *key, const char *password){ +void AsyncWebServer::beginSecure(const char* cert, const char* key, const char* password) { _server.beginSecure(cert, key, password); } #endif -void AsyncWebServer::_handleDisconnect(AsyncWebServerRequest *request){ +void AsyncWebServer::_handleDisconnect(AsyncWebServerRequest* request) { delete request; } -void AsyncWebServer::_rewriteRequest(AsyncWebServerRequest *request){ - for(const auto& r: _rewrites){ - if (r->match(request)){ +void AsyncWebServer::_rewriteRequest(AsyncWebServerRequest* request) { + for (const auto& r : _rewrites) { + if (r->match(request)) { request->_url = r->toUrl(); request->_addGetParams(r->params()); } } } -void AsyncWebServer::_attachHandler(AsyncWebServerRequest *request){ - for(const auto& h: _handlers){ - if (h->filter(request) && h->canHandle(request)){ - request->setHandler(h); +void AsyncWebServer::_attachHandler(AsyncWebServerRequest* request) { + for (auto& h : _handlers) { + if (h->filter(request) && h->canHandle(request)) { + request->setHandler(h.get()); return; } } - - request->addInterestingHeader("ANY"); + request->setHandler(_catchAllHandler); } - -AsyncCallbackWebHandler& AsyncWebServer::on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest, ArUploadHandlerFunction onUpload, ArBodyHandlerFunction onBody){ +AsyncCallbackWebHandler& AsyncWebServer::on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest, ArUploadHandlerFunction onUpload, ArBodyHandlerFunction onBody) { AsyncCallbackWebHandler* handler = new AsyncCallbackWebHandler(); handler->setUri(uri); handler->setMethod(method); @@ -135,59 +168,31 @@ AsyncCallbackWebHandler& AsyncWebServer::on(const char* uri, WebRequestMethodCom return *handler; } -AsyncCallbackWebHandler& AsyncWebServer::on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest, ArUploadHandlerFunction onUpload){ - AsyncCallbackWebHandler* handler = new AsyncCallbackWebHandler(); - handler->setUri(uri); - handler->setMethod(method); - handler->onRequest(onRequest); - handler->onUpload(onUpload); - addHandler(handler); - return *handler; -} - -AsyncCallbackWebHandler& AsyncWebServer::on(const char* uri, WebRequestMethodComposite method, ArRequestHandlerFunction onRequest){ - AsyncCallbackWebHandler* handler = new AsyncCallbackWebHandler(); - handler->setUri(uri); - handler->setMethod(method); - handler->onRequest(onRequest); - addHandler(handler); - return *handler; -} - -AsyncCallbackWebHandler& AsyncWebServer::on(const char* uri, ArRequestHandlerFunction onRequest){ - AsyncCallbackWebHandler* handler = new AsyncCallbackWebHandler(); - handler->setUri(uri); - handler->onRequest(onRequest); - addHandler(handler); - return *handler; -} - -AsyncStaticWebHandler& AsyncWebServer::serveStatic(const char* uri, fs::FS& fs, const char* path, const char* cache_control){ +AsyncStaticWebHandler& AsyncWebServer::serveStatic(const char* uri, fs::FS& fs, const char* path, const char* cache_control) { AsyncStaticWebHandler* handler = new AsyncStaticWebHandler(uri, fs, path, cache_control); addHandler(handler); return *handler; } -void AsyncWebServer::onNotFound(ArRequestHandlerFunction fn){ +void AsyncWebServer::onNotFound(ArRequestHandlerFunction fn) { _catchAllHandler->onRequest(fn); } -void AsyncWebServer::onFileUpload(ArUploadHandlerFunction fn){ +void AsyncWebServer::onFileUpload(ArUploadHandlerFunction fn) { _catchAllHandler->onUpload(fn); } -void AsyncWebServer::onRequestBody(ArBodyHandlerFunction fn){ +void AsyncWebServer::onRequestBody(ArBodyHandlerFunction fn) { _catchAllHandler->onBody(fn); } -void AsyncWebServer::reset(){ - _rewrites.free(); - _handlers.free(); - - if (_catchAllHandler != NULL){ +void AsyncWebServer::reset() { + _rewrites.clear(); + _handlers.clear(); + + if (_catchAllHandler != NULL) { _catchAllHandler->onRequest(NULL); _catchAllHandler->onUpload(NULL); _catchAllHandler->onBody(NULL); } } - diff --git a/src/edit.htm b/src/edit.htm deleted file mode 100644 index 43d498455..000000000 --- a/src/edit.htm +++ /dev/null @@ -1,627 +0,0 @@ - - - - -ESP Editor - - - - - - -
-
-
-
- - - - diff --git a/src/literals.h b/src/literals.h new file mode 100644 index 000000000..e9244836e --- /dev/null +++ b/src/literals.h @@ -0,0 +1,183 @@ +#pragma once + +namespace asyncsrv { + + static constexpr const char* empty = ""; + + static constexpr const char* T__opaque = "\", opaque=\""; + static constexpr const char* T_100_CONTINUE = "100-continue"; + static constexpr const char* T_13 = "13"; + static constexpr const char* T_ACCEPT = "accept"; + static constexpr const char* T_Accept_Ranges = "accept-ranges"; + static constexpr const char* T_app_xform_urlencoded = "application/x-www-form-urlencoded"; + static constexpr const char* T_AUTH = "authorization"; + static constexpr const char* T_auth_nonce = "\", qop=\"auth\", nonce=\""; + static constexpr const char* T_BASIC = "basic"; + static constexpr const char* T_BASIC_REALM = "basic realm=\""; + static constexpr const char* T_BEARER = "bearer"; + static constexpr const char* T_BODY = "body"; + static constexpr const char* T_Cache_Control = "cache-control"; + static constexpr const char* T_chunked = "chunked"; + static constexpr const char* T_close = "close"; + static constexpr const char* T_cnonce = "cnonce"; + static constexpr const char* T_Connection = "connection"; + static constexpr const char* T_Content_Disposition = "content-disposition"; + static constexpr const char* T_Content_Encoding = "content-encoding"; + static constexpr const char* T_Content_Length = "content-length"; + static constexpr const char* T_Content_Type = "content-type"; + static constexpr const char* T_Cookie = "cookie"; + static constexpr const char* T_CORS_ACAC = "access-control-allow-credentials"; + static constexpr const char* T_CORS_ACAH = "access-control-allow-headers"; + static constexpr const char* T_CORS_ACAM = "access-control-allow-methods"; + static constexpr const char* T_CORS_ACAO = "access-control-allow-origin"; + static constexpr const char* T_CORS_ACMA = "access-control-max-age"; + static constexpr const char* T_CORS_O = "origin"; + static constexpr const char* T_data_ = "data: "; + static constexpr const char* T_DIGEST = "digest"; + static constexpr const char* T_DIGEST_ = "digest "; + static constexpr const char* T_ETag = "etag"; + static constexpr const char* T_event_ = "event: "; + static constexpr const char* T_EXPECT = "expect"; + static constexpr const char* T_FALSE = "false"; + static constexpr const char* T_filename = "filename"; + static constexpr const char* T_gzip = "gzip"; + static constexpr const char* T_Host = "host"; + static constexpr const char* T_HTTP_1_0 = "HTTP/1.0"; + static constexpr const char* T_HTTP_100_CONT = "HTTP/1.1 100 Continue\r\n\r\n"; + static constexpr const char* T_id__ = "id: "; + static constexpr const char* T_IMS = "if-modified-since"; + static constexpr const char* T_INM = "if-none-match"; + static constexpr const char* T_keep_alive = "keep-alive"; + static constexpr const char* T_Last_Event_ID = "last-event-id"; + static constexpr const char* T_Last_Modified = "last-modified"; + static constexpr const char* T_LOCATION = "location"; + static constexpr const char* T_LOGIN_REQ = "Login Required"; + static constexpr const char* T_MULTIPART_ = "multipart/"; + static constexpr const char* T_name = "name"; + static constexpr const char* T_nc = "nc"; + static constexpr const char* T_no_cache = "no-cache"; + static constexpr const char* T_nonce = "nonce"; + static constexpr const char* T_none = "none"; + static constexpr const char* T_opaque = "opaque"; + static constexpr const char* T_qop = "qop"; + static constexpr const char* T_realm = "realm"; + static constexpr const char* T_realm__ = "realm=\""; + static constexpr const char* T_response = "response"; + static constexpr const char* T_retry_ = "retry: "; + static constexpr const char* T_retry_after = "retry-after"; + static constexpr const char* T_nn = "\n\n"; + static constexpr const char* T_rn = "\r\n"; + static constexpr const char* T_rnrn = "\r\n\r\n"; + static constexpr const char* T_Transfer_Encoding = "transfer-encoding"; + static constexpr const char* T_TRUE = "true"; + static constexpr const char* T_UPGRADE = "upgrade"; + static constexpr const char* T_uri = "uri"; + static constexpr const char* T_username = "username"; + static constexpr const char* T_WS = "websocket"; + static constexpr const char* T_WWW_AUTH = "www-authenticate"; + + // HTTP Methods + + static constexpr const char* T_ANY = "ANY"; + static constexpr const char* T_GET = "GET"; + static constexpr const char* T_POST = "POST"; + static constexpr const char* T_PUT = "PUT"; + static constexpr const char* T_DELETE = "DELETE"; + static constexpr const char* T_PATCH = "PATCH"; + static constexpr const char* T_HEAD = "HEAD"; + static constexpr const char* T_OPTIONS = "OPTIONS"; + static constexpr const char* T_UNKNOWN = "UNKNOWN"; + + // Req content types + static constexpr const char* T_RCT_NOT_USED = "RCT_NOT_USED"; + static constexpr const char* T_RCT_DEFAULT = "RCT_DEFAULT"; + static constexpr const char* T_RCT_HTTP = "RCT_HTTP"; + static constexpr const char* T_RCT_WS = "RCT_WS"; + static constexpr const char* T_RCT_EVENT = "RCT_EVENT"; + static constexpr const char* T_ERROR = "ERROR"; + + // extentions & MIME-Types + static constexpr const char* T__css = ".css"; + static constexpr const char* T__eot = ".eot"; + static constexpr const char* T__gif = ".gif"; + static constexpr const char* T__gz = ".gz"; + static constexpr const char* T__htm = ".htm"; + static constexpr const char* T__html = ".html"; + static constexpr const char* T__ico = ".ico"; + static constexpr const char* T__jpg = ".jpg"; + static constexpr const char* T__js = ".js"; + static constexpr const char* T__json = ".json"; + static constexpr const char* T__pdf = ".pdf"; + static constexpr const char* T__png = ".png"; + static constexpr const char* T__svg = ".svg"; + static constexpr const char* T__ttf = ".ttf"; + static constexpr const char* T__woff = ".woff"; + static constexpr const char* T__woff2 = ".woff2"; + static constexpr const char* T__xml = ".xml"; + static constexpr const char* T__zip = ".zip"; + static constexpr const char* T_application_javascript = "application/javascript"; + static constexpr const char* T_application_json = "application/json"; + static constexpr const char* T_application_msgpack = "application/msgpack"; + static constexpr const char* T_application_pdf = "application/pdf"; + static constexpr const char* T_application_x_gzip = "application/x-gzip"; + static constexpr const char* T_application_zip = "application/zip"; + static constexpr const char* T_font_eot = "font/eot"; + static constexpr const char* T_font_ttf = "font/ttf"; + static constexpr const char* T_font_woff = "font/woff"; + static constexpr const char* T_font_woff2 = "font/woff2"; + static constexpr const char* T_image_gif = "image/gif"; + static constexpr const char* T_image_jpeg = "image/jpeg"; + static constexpr const char* T_image_png = "image/png"; + static constexpr const char* T_image_svg_xml = "image/svg+xml"; + static constexpr const char* T_image_x_icon = "image/x-icon"; + static constexpr const char* T_text_css = "text/css"; + static constexpr const char* T_text_event_stream = "text/event-stream"; + static constexpr const char* T_text_html = "text/html"; + static constexpr const char* T_text_plain = "text/plain"; + static constexpr const char* T_text_xml = "text/xml"; + + // Responce codes + static constexpr const char* T_HTTP_CODE_100 = "Continue"; + static constexpr const char* T_HTTP_CODE_101 = "Switching Protocols"; + static constexpr const char* T_HTTP_CODE_200 = "OK"; + static constexpr const char* T_HTTP_CODE_201 = "Created"; + static constexpr const char* T_HTTP_CODE_202 = "Accepted"; + static constexpr const char* T_HTTP_CODE_203 = "Non-Authoritative Information"; + static constexpr const char* T_HTTP_CODE_204 = "No Content"; + static constexpr const char* T_HTTP_CODE_205 = "Reset Content"; + static constexpr const char* T_HTTP_CODE_206 = "Partial Content"; + static constexpr const char* T_HTTP_CODE_300 = "Multiple Choices"; + static constexpr const char* T_HTTP_CODE_301 = "Moved Permanently"; + static constexpr const char* T_HTTP_CODE_302 = "Found"; + static constexpr const char* T_HTTP_CODE_303 = "See Other"; + static constexpr const char* T_HTTP_CODE_304 = "Not Modified"; + static constexpr const char* T_HTTP_CODE_305 = "Use Proxy"; + static constexpr const char* T_HTTP_CODE_307 = "Temporary Redirect"; + static constexpr const char* T_HTTP_CODE_400 = "Bad Request"; + static constexpr const char* T_HTTP_CODE_401 = "Unauthorized"; + static constexpr const char* T_HTTP_CODE_402 = "Payment Required"; + static constexpr const char* T_HTTP_CODE_403 = "Forbidden"; + static constexpr const char* T_HTTP_CODE_404 = "Not Found"; + static constexpr const char* T_HTTP_CODE_405 = "Method Not Allowed"; + static constexpr const char* T_HTTP_CODE_406 = "Not Acceptable"; + static constexpr const char* T_HTTP_CODE_407 = "Proxy Authentication Required"; + static constexpr const char* T_HTTP_CODE_408 = "Request Time-out"; + static constexpr const char* T_HTTP_CODE_409 = "Conflict"; + static constexpr const char* T_HTTP_CODE_410 = "Gone"; + static constexpr const char* T_HTTP_CODE_411 = "Length Required"; + static constexpr const char* T_HTTP_CODE_412 = "Precondition Failed"; + static constexpr const char* T_HTTP_CODE_413 = "Request Entity Too Large"; + static constexpr const char* T_HTTP_CODE_414 = "Request-URI Too Large"; + static constexpr const char* T_HTTP_CODE_415 = "Unsupported Media Type"; + static constexpr const char* T_HTTP_CODE_416 = "Requested range not satisfiable"; + static constexpr const char* T_HTTP_CODE_417 = "Expectation Failed"; + static constexpr const char* T_HTTP_CODE_429 = "Too Many Requests"; + static constexpr const char* T_HTTP_CODE_500 = "Internal Server Error"; + static constexpr const char* T_HTTP_CODE_501 = "Not Implemented"; + static constexpr const char* T_HTTP_CODE_502 = "Bad Gateway"; + static constexpr const char* T_HTTP_CODE_503 = "Service Unavailable"; + static constexpr const char* T_HTTP_CODE_504 = "Gateway Time-out"; + static constexpr const char* T_HTTP_CODE_505 = "HTTP Version not supported"; + static constexpr const char* T_HTTP_CODE_ANY = "Unknown code"; + +} // namespace asyncsrv {} diff --git a/travis/build.sh b/travis/build.sh deleted file mode 100644 index 0ed99f040..000000000 --- a/travis/build.sh +++ /dev/null @@ -1,237 +0,0 @@ -#!/bin/bash - -PLATFORM=$1 -CHUNK_INDEX=$2 -CHUNKS_CNT=$3 -if [ "$#" -lt 3 ]; then - echo "Building all sketches" - CHUNK_INDEX=0 - CHUNKS_CNT=1 -fi -if [ "$CHUNKS_CNT" -le 0 ]; then - echo "Chunks count must be positive number" - exit 1 -fi -if [ "$CHUNK_INDEX" -ge "$CHUNKS_CNT" ]; then - echo "Chunk index must be less than chunks count" - exit 1 -fi - -if [ $PLATFORM == "esp32" ]; then - echo "BUILDING ESP32 EXAMPLES" -elif [ $PLATFORM == "esp8266" ]; then - echo "BUILDING ESP8266 EXAMPLES" -else - echo "UNKNOWN PLATFORM $PLATFORM" - exit 1 -fi - -echo -e "travis_fold:start:prep_arduino_ide" -# Install Arduino IDE -wget -O arduino.tar.xz https://www.arduino.cc/download.php?f=/arduino-nightly-linux64.tar.xz -tar xf arduino.tar.xz -mv arduino-nightly $HOME/arduino_ide -mkdir -p $HOME/Arduino/libraries -mkdir -p $HOME/Arduino/hardware -echo -e "travis_fold:end:prep_arduino_ide" - -echo -e "travis_fold:start:sketch_test_env_prepare" -cd $HOME/Arduino/libraries -cp -rf $TRAVIS_BUILD_DIR ESPAsyncWebServer -git clone https://github.com/bblanchon/ArduinoJson -#wget https://github.com/bblanchon/ArduinoJson/releases/download/v6.11.0/ArduinoJson-v6.11.0.zip && unzip ArduinoJson-v6.11.0.zip -PLATFORM_EXAMPLES=$TRAVIS_BUILD_DIR/examples - -if [ $PLATFORM == "esp32" ]; then - # ESP32 - cd $HOME/Arduino/libraries - git clone https://github.com/me-no-dev/AsyncTCP - cd $HOME/Arduino/hardware - pip install pyserial - mkdir espressif - cd espressif - git clone https://github.com/espressif/arduino-esp32.git esp32 - cd esp32 - git submodule update --init --recursive - cd tools - python get.py - PLATFORM_FQBN="espressif:esp32:esp32:PSRAM=enabled,PartitionScheme=huge_app,CPUFreq=240,FlashMode=qio,FlashFreq=80,FlashSize=4M,UploadSpeed=921600,DebugLevel=none" - PLATFORM_SIZE_BIN=$HOME/Arduino/hardware/espressif/esp32/tools/xtensa-esp32-elf/bin/xtensa-esp32-elf-size -elif [ $PLATFORM == "esp8266" ]; then - # ESP8266 - cd $HOME/Arduino/libraries - git clone https://github.com/me-no-dev/ESPAsyncTCP - cd $HOME/Arduino/hardware - mkdir esp8266com - cd esp8266com - git clone https://github.com/esp8266/Arduino.git esp8266 - cd esp8266 - git submodule update --init --recursive - cd tools - python get.py - PLATFORM_FQBN="esp8266com:esp8266:generic:xtal=80,FlashFreq=40,FlashMode=qio,baud=921600,eesz=4M1M,ip=lm2f,ResetMethod=nodemcu" - PLATFORM_SIZE_BIN=$HOME/Arduino/hardware/esp8266com/esp8266/tools/xtensa-lx106-elf/bin/xtensa-lx106-elf-size -fi -echo -e "travis_fold:end:sketch_test_env_prepare" - -cd $TRAVIS_BUILD_DIR - -ARDUINO_IDE_PATH=$HOME/arduino_ide -ARDUINO_USR_PATH=$HOME/Arduino -ARDUINO_BUILD_DIR=$HOME/build.tmp -ARDUINO_CACHE_DIR=$HOME/cache.tmp -ARDUINO_BUILD_CMD="$ARDUINO_IDE_PATH/arduino-builder -compile -logger=human -core-api-version=10810 -hardware \"$ARDUINO_IDE_PATH/hardware\" -hardware \"$ARDUINO_USR_PATH/hardware\" -tools \"$ARDUINO_IDE_PATH/tools-builder\" -built-in-libraries \"$ARDUINO_IDE_PATH/libraries\" -libraries \"$ARDUINO_USR_PATH/libraries\" -fqbn=$PLATFORM_FQBN -warnings=\"all\" -build-cache \"$ARDUINO_CACHE_DIR\" -build-path \"$ARDUINO_BUILD_DIR\" -verbose" - -function print_size_info() -{ - elf_file=$1 - - if [ -z "$elf_file" ]; then - if [ $PLATFORM == "esp32" ]; then - printf "sketch iram0.text flash.text flash.rodata dram0.data dram0.bss dram flash\n" - elif [ $PLATFORM == "esp8266" ]; then - printf "sketch data rodata bss text irom0.text dram flash\n" - fi - return 0 - fi - - elf_name=$(basename $elf_file) - sketch_name="${elf_name%.*}" - declare -A segments - while read -a tokens; do - seg=${tokens[0]} - seg=${seg//./} - size=${tokens[1]} - addr=${tokens[2]} - if [ "$addr" -eq "$addr" -a "$addr" -ne "0" ] 2>/dev/null; then - segments[$seg]=$size - fi - done < <($PLATFORM_SIZE_BIN --format=sysv $elf_file) - - if [ $PLATFORM == "esp32" ]; then - total_ram=$((${segments[dram0data]} + ${segments[dram0bss]})) - total_flash=$((${segments[iram0text]} + ${segments[flashtext]} + ${segments[dram0data]} + ${segments[flashrodata]})) - printf "%-32s %-8d %-8d %-8d %-8d %-8d %-8d %-8d\n" $sketch_name ${segments[iram0text]} ${segments[flashtext]} ${segments[flashrodata]} ${segments[dram0data]} ${segments[dram0bss]} $total_ram $total_flash - elif [ $PLATFORM == "esp8266" ]; then - total_ram=$((${segments[data]} + ${segments[rodata]} + ${segments[bss]})) - total_flash=$((${segments[data]} + ${segments[rodata]} + ${segments[text]} + ${segments[irom0text]})) - printf "%-28s %-8d %-8d %-8d %-8d %-8d %-8d %-8d\n" $sketch_name ${segments[data]} ${segments[rodata]} ${segments[bss]} ${segments[text]} ${segments[irom0text]} $total_ram $total_flash - fi - return 0 -} - -function build_sketch() -{ - local sketch=$1 - echo -e "\n------------ Building $sketch ------------\n"; - rm -rf $ARDUINO_BUILD_DIR/* - time ($ARDUINO_BUILD_CMD $sketch >build.log) - local result=$? - if [ $result -ne 0 ]; then - echo "Build failed ($1)" - echo "Build log:" - cat build.log - return $result - fi - rm build.log - return 0 -} - -function count_sketches() -{ - local sketches=$(find $PLATFORM_EXAMPLES -name *.ino) - local sketchnum=0 - rm -rf sketches.txt - for sketch in $sketches; do - local sketchdir=$(dirname $sketch) - local sketchdirname=$(basename $sketchdir) - local sketchname=$(basename $sketch) - if [[ "${sketchdirname}.ino" != "$sketchname" ]]; then - continue - fi - echo $sketch >> sketches.txt - sketchnum=$(($sketchnum + 1)) - done - return $sketchnum -} - -function build_sketches() -{ - mkdir -p $ARDUINO_BUILD_DIR - mkdir -p $ARDUINO_CACHE_DIR - mkdir -p $ARDUINO_USR_PATH/libraries - mkdir -p $ARDUINO_USR_PATH/hardware - - local chunk_idex=$1 - local chunks_num=$2 - count_sketches - local sketchcount=$? - local sketches=$(cat sketches.txt) - - local chunk_size=$(( $sketchcount / $chunks_num )) - local all_chunks=$(( $chunks_num * $chunk_size )) - if [ "$all_chunks" -lt "$sketchcount" ]; then - chunk_size=$(( $chunk_size + 1 )) - fi - - local start_index=$(( $chunk_idex * $chunk_size )) - if [ "$sketchcount" -le "$start_index" ]; then - echo "Skipping job" - return 0 - fi - - local end_index=$(( $(( $chunk_idex + 1 )) * $chunk_size )) - if [ "$end_index" -gt "$sketchcount" ]; then - end_index=$sketchcount - fi - - local start_num=$(( $start_index + 1 )) - #echo -e "Sketches: \n$sketches\n" - echo "Found $sketchcount Sketches"; - echo "Chunk Count : $chunks_num" - echo "Chunk Size : $chunk_size" - echo "Start Sketch: $start_num" - echo "End Sketch : $end_index" - - local sketchnum=0 - print_size_info >size.log - for sketch in $sketches; do - local sketchdir=$(dirname $sketch) - local sketchdirname=$(basename $sketchdir) - local sketchname=$(basename $sketch) - if [[ "${sketchdirname}.ino" != "$sketchname" ]]; then - #echo "Skipping $sketch, beacause it is not the main sketch file"; - continue - fi; - if [[ -f "$sketchdir/.test.skip" ]]; then - #echo "Skipping $sketch marked"; - continue - fi - sketchnum=$(($sketchnum + 1)) - if [ "$sketchnum" -le "$start_index" ]; then - #echo "Skipping $sketch index low" - continue - fi - if [ "$sketchnum" -gt "$end_index" ]; then - #echo "Skipping $sketch index high" - continue - fi - build_sketch $sketch - local result=$? - if [ $result -ne 0 ]; then - return $result - fi - print_size_info $ARDUINO_BUILD_DIR/*.elf >>size.log - done - return 0 -} - -echo -e "travis_fold:start:test_arduino_ide" -# Build Examples -build_sketches $CHUNK_INDEX $CHUNKS_CNT -if [ $? -ne 0 ]; then exit 1; fi -echo -e "travis_fold:end:test_arduino_ide" - -echo -e "travis_fold:start:size_report" -cat size.log -echo -e "travis_fold:end:size_report"