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/*
* Copyright 2012-2023 The Feign Authors
*
* 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.
*/
package feign;
import static feign.Util.checkNotNull;
import static feign.Util.valuesOrEmpty;
import java.io.Serializable;
import java.net.HttpURLConnection;
import java.nio.charset.Charset;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.TimeUnit;
/**
* An immutable request to an http server.
*/
public final class Request implements Serializable {
public enum HttpMethod {
GET, HEAD, POST(true), PUT(true), DELETE, CONNECT, OPTIONS, TRACE, PATCH(true);
private final boolean withBody;
HttpMethod() {
this(false);
}
HttpMethod(boolean withBody) {
this.withBody = withBody;
}
public boolean isWithBody() {
return this.withBody;
}
}
public enum ProtocolVersion {
HTTP_1_0("HTTP/1.0"), HTTP_1_1("HTTP/1.1"), HTTP_2("HTTP/2.0"), MOCK;
final String protocolVersion;
ProtocolVersion() {
protocolVersion = name();
}
ProtocolVersion(String protocolVersion) {
this.protocolVersion = protocolVersion;
}
@Override
public String toString() {
return protocolVersion;
}
}
/**
* No parameters can be null except {@code body} and {@code charset}. All parameters must be
* effectively immutable, via safe copies, not mutating or otherwise.
*
* @deprecated {@link #create(HttpMethod, String, Map, byte[], Charset)}
*/
@Deprecated
public static Request create(String method,
String url,
Map<String, Collection<String>> headers,
byte[] body,
Charset charset) {
checkNotNull(method, "httpMethod of %s", method);
final HttpMethod httpMethod = HttpMethod.valueOf(method.toUpperCase());
return create(httpMethod, url, headers, body, charset, null);
}
/**
* Builds a Request. All parameters must be effectively immutable, via safe copies.
*
* @param httpMethod for the request.
* @param url for the request.
* @param headers to include.
* @param body of the request, can be {@literal null}
* @param charset of the request, can be {@literal null}
* @return a Request
*/
@Deprecated
public static Request create(HttpMethod httpMethod,
String url,
Map<String, Collection<String>> headers,
byte[] body,
Charset charset) {
return create(httpMethod, url, headers, Body.create(body, charset), null);
}
/**
* Builds a Request. All parameters must be effectively immutable, via safe copies.
*
* @param httpMethod for the request.
* @param url for the request.
* @param headers to include.
* @param body of the request, can be {@literal null}
* @param charset of the request, can be {@literal null}
* @return a Request
*/
public static Request create(HttpMethod httpMethod,
String url,
Map<String, Collection<String>> headers,
byte[] body,
Charset charset,
RequestTemplate requestTemplate) {
return create(httpMethod, url, headers, Body.create(body, charset), requestTemplate);
}
/**
* Builds a Request. All parameters must be effectively immutable, via safe copies.
*
* @param httpMethod for the request.
* @param url for the request.
* @param headers to include.
* @param body of the request, can be {@literal null}
* @return a Request
*/
public static Request create(HttpMethod httpMethod,
String url,
Map<String, Collection<String>> headers,
Body body,
RequestTemplate requestTemplate) {
return new Request(httpMethod, url, headers, body, requestTemplate);
}
private final HttpMethod httpMethod;
private final String url;
private final Map<String, Collection<String>> headers;
private final Body body;
private final RequestTemplate requestTemplate;
private final ProtocolVersion protocolVersion;
/**
* Creates a new Request.
*
* @param method of the request.
* @param url for the request.
* @param headers for the request.
* @param body for the request, optional.
* @param requestTemplate used to build the request.
*/
Request(HttpMethod method,
String url,
Map<String, Collection<String>> headers,
Body body,
RequestTemplate requestTemplate) {
this.httpMethod = checkNotNull(method, "httpMethod of %s", method.name());
this.url = checkNotNull(url, "url");
this.headers = checkNotNull(headers, "headers of %s %s", method, url);
this.body = body;
this.requestTemplate = requestTemplate;
protocolVersion = ProtocolVersion.HTTP_1_1;
}
/**
* Http Method for this request.
*
* @return the HttpMethod string
* @deprecated @see {@link #httpMethod()}
*/
@Deprecated
public String method() {
return httpMethod.name();
}
/**
* Http Method for the request.
*
* @return the HttpMethod.
*/
public HttpMethod httpMethod() {
return this.httpMethod;
}
/**
* URL for the request.
*
* @return URL as a String.
*/
public String url() {
return url;
}
/**
* Request Headers.
*
* @return the request headers.
*/
public Map<String, Collection<String>> headers() {
return Collections.unmodifiableMap(headers);
}
/**
* Add new entries to request Headers. It overrides existing entries
*
* @param key
* @param value
*/
public void header(String key, String value) {
header(key, Arrays.asList(value));
}
/**
* Add new entries to request Headers. It overrides existing entries
*
* @param key
* @param values
*/
public void header(String key, Collection<String> values) {
headers.put(key, values);
}
/**
* Charset of the request.
*
* @return the current character set for the request, may be {@literal null} for binary data.
*/
public Charset charset() {
return body.encoding;
}
/**
* If present, this is the replayable body to send to the server. In some cases, this may be
* interpretable as text.
*
* @see #charset()
*/
public byte[] body() {
return body.data;
}
public boolean isBinary() {
return body.isBinary();
}
/**
* Request Length.
*
* @return size of the request body.
*/
public int length() {
return this.body.length();
}
/**
* Request HTTP protocol version
*
* @return HTTP protocol version
*/
public ProtocolVersion protocolVersion() {
return protocolVersion;
}
/**
* Request as an HTTP/1.1 request.
*
* @return the request.
*/
@Override
public String toString() {
final StringBuilder builder = new StringBuilder();
builder.append(httpMethod).append(' ').append(url).append(" HTTP/1.1\n");
for (final String field : headers.keySet()) {
for (final String value : valuesOrEmpty(headers, field)) {
builder.append(field).append(": ").append(value).append('\n');
}
}
if (body != null) {
builder.append('\n').append(body.asString());
}
return builder.toString();
}
/**
* Controls the per-request settings currently required to be implemented by all {@link Client
* clients}
*/
public static class Options {
private final long connectTimeout;
private final TimeUnit connectTimeoutUnit;
private final long readTimeout;
private final TimeUnit readTimeoutUnit;
private final boolean followRedirects;
/**
* Creates a new Options instance.
*
* @param connectTimeoutMillis connection timeout in milliseconds.
* @param readTimeoutMillis read timeout in milliseconds.
* @param followRedirects if the request should follow 3xx redirections.
*
* @deprecated please use {@link #Options(long, TimeUnit, long, TimeUnit, boolean)}
*/
@Deprecated
public Options(int connectTimeoutMillis, int readTimeoutMillis, boolean followRedirects) {
this(connectTimeoutMillis, TimeUnit.MILLISECONDS,
readTimeoutMillis, TimeUnit.MILLISECONDS,
followRedirects);
}
/**
* Creates a new Options Instance.
*
* @param connectTimeout value.
* @param connectTimeoutUnit with the TimeUnit for the timeout value.
* @param readTimeout value.
* @param readTimeoutUnit with the TimeUnit for the timeout value.
* @param followRedirects if the request should follow 3xx redirections.
*/
public Options(long connectTimeout, TimeUnit connectTimeoutUnit,
long readTimeout, TimeUnit readTimeoutUnit,
boolean followRedirects) {
super();
this.connectTimeout = connectTimeout;
this.connectTimeoutUnit = connectTimeoutUnit;
this.readTimeout = readTimeout;
this.readTimeoutUnit = readTimeoutUnit;
this.followRedirects = followRedirects;
}
/**
* Creates a new Options instance that follows redirects by default.
*
* @param connectTimeoutMillis connection timeout in milliseconds.
* @param readTimeoutMillis read timeout in milliseconds.
*
* @deprecated please use {@link #Options(long, TimeUnit, long, TimeUnit, boolean)}
*/
@Deprecated
public Options(int connectTimeoutMillis, int readTimeoutMillis) {
this(connectTimeoutMillis, readTimeoutMillis, true);
}
/**
* Creates the new Options instance using the following defaults:
* <ul>
* <li>Connect Timeout: 10 seconds</li>
* <li>Read Timeout: 60 seconds</li>
* <li>Follow all 3xx redirects</li>
* </ul>
*/
public Options() {
this(10, TimeUnit.SECONDS, 60, TimeUnit.SECONDS, true);
}
/**
* Defaults to 10 seconds. {@code 0} implies no timeout.
*
* @see java.net.HttpURLConnection#getConnectTimeout()
*/
public int connectTimeoutMillis() {
return (int) connectTimeoutUnit.toMillis(connectTimeout);
}
/**
* Defaults to 60 seconds. {@code 0} implies no timeout.
*
* @see java.net.HttpURLConnection#getReadTimeout()
*/
public int readTimeoutMillis() {
return (int) readTimeoutUnit.toMillis(readTimeout);
}
/**
* Defaults to true. {@code false} tells the client to not follow the redirections.
*
* @see HttpURLConnection#getFollowRedirects()
*/
public boolean isFollowRedirects() {
return followRedirects;
}
/**
* Connect Timeout Value.
*
* @return current timeout value.
*/
public long connectTimeout() {
return connectTimeout;
}
/**
* TimeUnit for the Connection Timeout value.
*
* @return TimeUnit
*/
public TimeUnit connectTimeoutUnit() {
return connectTimeoutUnit;
}
/**
* Read Timeout value.
*
* @return current read timeout value.
*/
public long readTimeout() {
return readTimeout;
}
/**
* TimeUnit for the Read Timeout value.
*
* @return TimeUnit
*/
public TimeUnit readTimeoutUnit() {
return readTimeoutUnit;
}
}
@Experimental
public RequestTemplate requestTemplate() {
return this.requestTemplate;
}
/**
* Request Body
* <p>
* Considered experimental, will most likely be made internal going forward.
* </p>
*/
@Experimental
public static class Body implements Serializable {
private transient Charset encoding;
private byte[] data;
private Body() {
super();
}
private Body(byte[] data) {
this.data = data;
}
private Body(byte[] data, Charset encoding) {
this.data = data;
this.encoding = encoding;
}
public Optional<Charset> getEncoding() {
return Optional.ofNullable(this.encoding);
}
public int length() {
/* calculate the content length based on the data provided */
return data != null ? data.length : 0;
}
public byte[] asBytes() {
return data;
}
public String asString() {
return !isBinary()
? new String(data, encoding)
: "Binary data";
}
public boolean isBinary() {
return encoding == null || data == null;
}
public static Body create(String data) {
return new Body(data.getBytes());
}
public static Body create(String data, Charset charset) {
return new Body(data.getBytes(charset), charset);
}
public static Body create(byte[] data) {
return new Body(data);
}
public static Body create(byte[] data, Charset charset) {
return new Body(data, charset);
}
/**
* Creates a new Request Body with charset encoded data.
*
* @param data to be encoded.
* @param charset to encode the data with. if {@literal null}, then data will be considered
* binary and will not be encoded.
*
* @return a new Request.Body instance with the encoded data.
* @deprecated please use {@link Request.Body#create(byte[], Charset)}
*/
@Deprecated
public static Body encoded(byte[] data, Charset charset) {
return create(data, charset);
}
public static Body empty() {
return new Body();
}
}
}