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/*
* Copyright © 2018-2021 Musing Studio LLC.
*
* This file is part of WriteFreely.
*
* WriteFreely is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, included
* in the LICENSE file in this source code package.
*/
package writefreely
import (
"context"
"database/sql"
"fmt"
"net/http"
"net/url"
"strings"
"time"
"github.com/go-sql-driver/mysql"
"github.com/writeas/web-core/silobridge"
wf_db "github.com/writefreely/writefreely/db"
"github.com/writefreely/writefreely/parse"
"github.com/guregu/null"
"github.com/guregu/null/zero"
uuid "github.com/nu7hatch/gouuid"
"github.com/writeas/activityserve"
"github.com/writeas/impart"
"github.com/writeas/web-core/activitypub"
"github.com/writeas/web-core/auth"
"github.com/writeas/web-core/data"
"github.com/writeas/web-core/id"
"github.com/writeas/web-core/log"
"github.com/writeas/web-core/query"
"github.com/writefreely/writefreely/author"
"github.com/writefreely/writefreely/config"
"github.com/writefreely/writefreely/key"
)
const (
mySQLErrDuplicateKey = 1062
mySQLErrCollationMix = 1267
mySQLErrTooManyConns = 1040
mySQLErrMaxUserConns = 1203
driverMySQL = "mysql"
driverSQLite = "sqlite3"
)
var (
SQLiteEnabled bool
)
type writestore interface {
CreateUser(*config.Config, *User, string, string) error
UpdateUserEmail(keys *key.Keychain, userID int64, email string) error
UpdateEncryptedUserEmail(int64, []byte) error
GetUserByID(int64) (*User, error)
GetUserForAuth(string) (*User, error)
GetUserForAuthByID(int64) (*User, error)
GetUserNameFromToken(string) (string, error)
GetUserDataFromToken(string) (int64, string, error)
GetAPIUser(header string) (*User, error)
GetUserID(accessToken string) int64
GetUserIDPrivilege(accessToken string) (userID int64, sudo bool)
DeleteToken(accessToken []byte) error
FetchLastAccessToken(userID int64) string
GetAccessToken(userID int64) (string, error)
GetTemporaryAccessToken(userID int64, validSecs int) (string, error)
GetTemporaryOneTimeAccessToken(userID int64, validSecs int, oneTime bool) (string, error)
DeleteAccount(userID int64) error
ChangeSettings(app *App, u *User, s *userSettings) error
ChangePassphrase(userID int64, sudo bool, curPass string, hashedPass []byte) error
GetCollections(u *User, hostName string) (*[]Collection, error)
GetPublishableCollections(u *User, hostName string) (*[]Collection, error)
GetMeStats(u *User) userMeStats
GetTotalCollections() (int64, error)
GetTotalPosts() (int64, error)
GetTopPosts(u *User, alias string, hostName string) (*[]PublicPost, error)
GetAnonymousPosts(u *User, page int) (*[]PublicPost, error)
GetUserPosts(u *User) (*[]PublicPost, error)
CreateOwnedPost(post *SubmittedPost, accessToken, collAlias, hostName string) (*PublicPost, error)
CreatePost(userID, collID int64, post *SubmittedPost) (*Post, error)
UpdateOwnedPost(post *AuthenticatedPost, userID int64) error
GetEditablePost(id, editToken string) (*PublicPost, error)
PostIDExists(id string) bool
GetPost(id string, collectionID int64) (*PublicPost, error)
GetOwnedPost(id string, ownerID int64) (*PublicPost, error)
GetPostProperty(id string, collectionID int64, property string) (interface{}, error)
CreateCollectionFromToken(*config.Config, string, string, string) (*Collection, error)
CreateCollection(*config.Config, string, string, int64) (*Collection, error)
GetCollectionBy(condition string, value interface{}) (*Collection, error)
GetCollection(alias string) (*Collection, error)
GetCollectionForPad(alias string) (*Collection, error)
GetCollectionByID(id int64) (*Collection, error)
UpdateCollection(app *App, c *SubmittedCollection, alias string) error
DeleteCollection(alias string, userID int64) error
UpdatePostPinState(pinned bool, postID string, collID, ownerID, pos int64) error
GetLastPinnedPostPos(collID int64) int64
GetPinnedPosts(coll *CollectionObj, includeFuture bool) (*[]PublicPost, error)
RemoveCollectionRedirect(t *sql.Tx, alias string) error
GetCollectionRedirect(alias string) (new string)
IsCollectionAttributeOn(id int64, attr string) bool
CollectionHasAttribute(id int64, attr string) bool
CanCollect(cpr *ClaimPostRequest, userID int64) bool
AttemptClaim(p *ClaimPostRequest, query string, params []interface{}, slugIdx int) (sql.Result, error)
DispersePosts(userID int64, postIDs []string) (*[]ClaimPostResult, error)
ClaimPosts(cfg *config.Config, userID int64, collAlias string, posts *[]ClaimPostRequest) (*[]ClaimPostResult, error)
GetPostsCount(c *CollectionObj, includeFuture bool)
GetPosts(cfg *config.Config, c *Collection, page int, includeFuture, forceRecentFirst, includePinned bool) (*[]PublicPost, error)
GetAllPostsTaggedIDs(c *Collection, tag string, includeFuture bool) ([]string, error)
GetPostsTagged(cfg *config.Config, c *Collection, tag string, page int, includeFuture bool) (*[]PublicPost, error)
GetAPFollowers(c *Collection) (*[]RemoteUser, error)
GetAPActorKeys(collectionID int64) ([]byte, []byte)
CreateUserInvite(id string, userID int64, maxUses int, expires *time.Time) error
GetUserInvites(userID int64) (*[]Invite, error)
GetUserInvite(id string) (*Invite, error)
GetUsersInvitedCount(id string) int64
CreateInvitedUser(inviteID string, userID int64) error
GetDynamicContent(id string) (*instanceContent, error)
UpdateDynamicContent(id, title, content, contentType string) error
GetAllUsers(page uint) (*[]User, error)
GetAllUsersCount() int64
GetUserLastPostTime(id int64) (*time.Time, error)
GetCollectionLastPostTime(id int64) (*time.Time, error)
GetIDForRemoteUser(context.Context, string, string, string) (int64, error)
RecordRemoteUserID(context.Context, int64, string, string, string, string) error
ValidateOAuthState(context.Context, string) (string, string, int64, string, error)
GenerateOAuthState(context.Context, string, string, int64, string) (string, error)
GetOauthAccounts(ctx context.Context, userID int64) ([]oauthAccountInfo, error)
RemoveOauth(ctx context.Context, userID int64, provider string, clientID string, remoteUserID string) error
DatabaseInitialized() bool
}
type datastore struct {
*sql.DB
driverName string
}
var _ writestore = &datastore{}
func (db *datastore) now() string {
if db.driverName == driverSQLite {
return "strftime('%Y-%m-%d %H:%M:%S','now')"
}
return "NOW()"
}
func (db *datastore) clip(field string, l int) string {
if db.driverName == driverSQLite {
return fmt.Sprintf("SUBSTR(%s, 0, %d)", field, l)
}
return fmt.Sprintf("LEFT(%s, %d)", field, l)
}
func (db *datastore) upsert(indexedCols ...string) string {
if db.driverName == driverSQLite {
// NOTE: SQLite UPSERT syntax only works in v3.24.0 (2018-06-04) or later
// Leaving this for whenever we can upgrade and include it in our binary
cc := strings.Join(indexedCols, ", ")
return "ON CONFLICT(" + cc + ") DO UPDATE SET"
}
return "ON DUPLICATE KEY UPDATE"
}
func (db *datastore) dateAdd(l int, unit string) string {
if db.driverName == driverSQLite {
return fmt.Sprintf("DATETIME('now', '%d %s')", l, unit)
}
return fmt.Sprintf("DATE_ADD(NOW(), INTERVAL %d %s)", l, unit)
}
func (db *datastore) dateSub(l int, unit string) string {
if db.driverName == driverSQLite {
return fmt.Sprintf("DATETIME('now', '-%d %s')", l, unit)
}
return fmt.Sprintf("DATE_SUB(NOW(), INTERVAL %d %s)", l, unit)
}
// CreateUser creates a new user in the database from the given User, UPDATING it in the process with the user's ID.
func (db *datastore) CreateUser(cfg *config.Config, u *User, collectionTitle string, collectionDesc string) error {
if db.PostIDExists(u.Username) {
return impart.HTTPError{http.StatusConflict, "Invalid collection name."}
}
// New users get a `users` and `collections` row.
t, err := db.Begin()
if err != nil {
return err
}
// 1. Add to `users` table
// NOTE: Assumes User's Password is already hashed!
res, err := t.Exec("INSERT INTO users (username, password, email) VALUES (?, ?, ?)", u.Username, u.HashedPass, u.Email)
if err != nil {
t.Rollback()
if db.isDuplicateKeyErr(err) {
return impart.HTTPError{http.StatusConflict, "Username is already taken."}
}
log.Error("Rolling back users INSERT: %v\n", err)
return err
}
u.ID, err = res.LastInsertId()
if err != nil {
t.Rollback()
log.Error("Rolling back after LastInsertId: %v\n", err)
return err
}
// 2. Create user's Collection
if collectionTitle == "" {
collectionTitle = u.Username
}
res, err = t.Exec("INSERT INTO collections (alias, title, description, privacy, owner_id, view_count) VALUES (?, ?, ?, ?, ?, ?)", u.Username, collectionTitle, collectionDesc, defaultVisibility(cfg), u.ID, 0)
if err != nil {
t.Rollback()
if db.isDuplicateKeyErr(err) {
return impart.HTTPError{http.StatusConflict, "Username is already taken."}
}
log.Error("Rolling back collections INSERT: %v\n", err)
return err
}
db.RemoveCollectionRedirect(t, u.Username)
err = t.Commit()
if err != nil {
t.Rollback()
log.Error("Rolling back after Commit(): %v\n", err)
return err
}
return nil
}
// FIXME: We're returning errors inconsistently in this file. Do we use Errorf
// for returned value, or impart?
func (db *datastore) UpdateUserEmail(keys *key.Keychain, userID int64, email string) error {
encEmail, err := data.Encrypt(keys.EmailKey, email)
if err != nil {
return fmt.Errorf("Couldn't encrypt email %s: %s\n", email, err)
}
return db.UpdateEncryptedUserEmail(userID, encEmail)
}
func (db *datastore) UpdateEncryptedUserEmail(userID int64, encEmail []byte) error {
_, err := db.Exec("UPDATE users SET email = ? WHERE id = ?", encEmail, userID)
if err != nil {
return fmt.Errorf("Unable to update user email: %s", err)
}
return nil
}
func (db *datastore) CreateCollectionFromToken(cfg *config.Config, alias, title, accessToken string) (*Collection, error) {
userID := db.GetUserID(accessToken)
if userID == -1 {
return nil, ErrBadAccessToken
}
return db.CreateCollection(cfg, alias, title, userID)
}
func (db *datastore) GetUserCollectionCount(userID int64) (uint64, error) {
var collCount uint64
err := db.QueryRow("SELECT COUNT(*) FROM collections WHERE owner_id = ?", userID).Scan(&collCount)
switch {
case err == sql.ErrNoRows:
return 0, impart.HTTPError{http.StatusInternalServerError, "Couldn't retrieve user from database."}
case err != nil:
log.Error("Couldn't get collections count for user %d: %v", userID, err)
return 0, err
}
return collCount, nil
}
func (db *datastore) CreateCollection(cfg *config.Config, alias, title string, userID int64) (*Collection, error) {
if db.PostIDExists(alias) {
return nil, impart.HTTPError{http.StatusConflict, "Invalid collection name."}
}
// All good, so create new collection
res, err := db.Exec("INSERT INTO collections (alias, title, description, privacy, owner_id, view_count) VALUES (?, ?, ?, ?, ?, ?)", alias, title, "", defaultVisibility(cfg), userID, 0)
if err != nil {
if db.isDuplicateKeyErr(err) {
return nil, impart.HTTPError{http.StatusConflict, "Collection already exists."}
}
log.Error("Couldn't add to collections: %v\n", err)
return nil, err
}
c := &Collection{
Alias: alias,
Title: title,
OwnerID: userID,
PublicOwner: false,
Public: defaultVisibility(cfg) == CollPublic,
}
c.ID, err = res.LastInsertId()
if err != nil {
log.Error("Couldn't get collection LastInsertId: %v\n", err)
}
return c, nil
}
func (db *datastore) GetUserByID(id int64) (*User, error) {
u := &User{ID: id}
err := db.QueryRow("SELECT username, password, email, created, status FROM users WHERE id = ?", id).Scan(&u.Username, &u.HashedPass, &u.Email, &u.Created, &u.Status)
switch {
case err == sql.ErrNoRows:
return nil, ErrUserNotFound
case err != nil:
log.Error("Couldn't SELECT user password: %v", err)
return nil, err
}
return u, nil
}
// IsUserSilenced returns true if the user account associated with id is
// currently silenced.
func (db *datastore) IsUserSilenced(id int64) (bool, error) {
u := &User{ID: id}
err := db.QueryRow("SELECT status FROM users WHERE id = ?", id).Scan(&u.Status)
switch {
case err == sql.ErrNoRows:
return false, ErrUserNotFound
case err != nil:
log.Error("Couldn't SELECT user status: %v", err)
return false, fmt.Errorf("is user silenced: %v", err)
}
return u.IsSilenced(), nil
}
// DoesUserNeedAuth returns true if the user hasn't provided any methods for
// authenticating with the account, such a passphrase or email address.
// Any errors are reported to admin and silently quashed, returning false as the
// result.
func (db *datastore) DoesUserNeedAuth(id int64) bool {
var pass, email []byte
// Find out if user has an email set first
err := db.QueryRow("SELECT password, email FROM users WHERE id = ?", id).Scan(&pass, &email)
switch {
case err == sql.ErrNoRows:
// ERROR. Don't give false positives on needing auth methods
return false
case err != nil:
// ERROR. Don't give false positives on needing auth methods
log.Error("Couldn't SELECT user %d from users: %v", id, err)
return false
}
// User doesn't need auth if there's an email
return len(email) == 0 && len(pass) == 0
}
func (db *datastore) IsUserPassSet(id int64) (bool, error) {
var pass []byte
err := db.QueryRow("SELECT password FROM users WHERE id = ?", id).Scan(&pass)
switch {
case err == sql.ErrNoRows:
return false, nil
case err != nil:
log.Error("Couldn't SELECT user %d from users: %v", id, err)
return false, err
}
return len(pass) > 0, nil
}
func (db *datastore) GetUserForAuth(username string) (*User, error) {
u := &User{Username: username}
err := db.QueryRow("SELECT id, password, email, created, status FROM users WHERE username = ?", username).Scan(&u.ID, &u.HashedPass, &u.Email, &u.Created, &u.Status)
switch {
case err == sql.ErrNoRows:
// Check if they've entered the wrong, unnormalized username
username = getSlug(username, "")
if username != u.Username {
err = db.QueryRow("SELECT id FROM users WHERE username = ? LIMIT 1", username).Scan(&u.ID)
if err == nil {
return db.GetUserForAuth(username)
}
}
return nil, ErrUserNotFound
case err != nil:
log.Error("Couldn't SELECT user password: %v", err)
return nil, err
}
return u, nil
}
func (db *datastore) GetUserForAuthByID(userID int64) (*User, error) {
u := &User{ID: userID}
err := db.QueryRow("SELECT id, password, email, created, status FROM users WHERE id = ?", u.ID).Scan(&u.ID, &u.HashedPass, &u.Email, &u.Created, &u.Status)
switch {
case err == sql.ErrNoRows:
return nil, ErrUserNotFound
case err != nil:
log.Error("Couldn't SELECT userForAuthByID: %v", err)
return nil, err
}
return u, nil
}
func (db *datastore) GetUserNameFromToken(accessToken string) (string, error) {
t := auth.GetToken(accessToken)
if len(t) == 0 {
return "", ErrNoAccessToken
}
var oneTime bool
var username string
err := db.QueryRow("SELECT username, one_time FROM accesstokens LEFT JOIN users ON user_id = id WHERE token LIKE ? AND (expires IS NULL OR expires > "+db.now()+")", t).Scan(&username, &oneTime)
switch {
case err == sql.ErrNoRows:
return "", ErrBadAccessToken
case err != nil:
return "", ErrInternalGeneral
}
// Delete token if it was one-time
if oneTime {
db.DeleteToken(t[:])
}
return username, nil
}
func (db *datastore) GetUserDataFromToken(accessToken string) (int64, string, error) {
t := auth.GetToken(accessToken)
if len(t) == 0 {
return 0, "", ErrNoAccessToken
}
var userID int64
var oneTime bool
var username string
err := db.QueryRow("SELECT user_id, username, one_time FROM accesstokens LEFT JOIN users ON user_id = id WHERE token LIKE ? AND (expires IS NULL OR expires > "+db.now()+")", t).Scan(&userID, &username, &oneTime)
switch {
case err == sql.ErrNoRows:
return 0, "", ErrBadAccessToken
case err != nil:
return 0, "", ErrInternalGeneral
}
// Delete token if it was one-time
if oneTime {
db.DeleteToken(t[:])
}
return userID, username, nil
}
func (db *datastore) GetAPIUser(header string) (*User, error) {
uID := db.GetUserID(header)
if uID == -1 {
return nil, fmt.Errorf(ErrUserNotFound.Error())
}
return db.GetUserByID(uID)
}
// GetUserID takes a hexadecimal accessToken, parses it into its binary
// representation, and gets any user ID associated with the token. If no user
// is associated, -1 is returned.
func (db *datastore) GetUserID(accessToken string) int64 {
i, _ := db.GetUserIDPrivilege(accessToken)
return i
}
func (db *datastore) GetUserIDPrivilege(accessToken string) (userID int64, sudo bool) {
t := auth.GetToken(accessToken)
if len(t) == 0 {
return -1, false
}
var oneTime bool
err := db.QueryRow("SELECT user_id, sudo, one_time FROM accesstokens WHERE token LIKE ? AND (expires IS NULL OR expires > "+db.now()+")", t).Scan(&userID, &sudo, &oneTime)
switch {
case err == sql.ErrNoRows:
return -1, false
case err != nil:
return -1, false
}
// Delete token if it was one-time
if oneTime {
db.DeleteToken(t[:])
}
return
}
func (db *datastore) DeleteToken(accessToken []byte) error {
res, err := db.Exec("DELETE FROM accesstokens WHERE token LIKE ?", accessToken)
if err != nil {
return err
}
rowsAffected, _ := res.RowsAffected()
if rowsAffected == 0 {
return impart.HTTPError{http.StatusNotFound, "Token is invalid or doesn't exist"}
}
return nil
}
// FetchLastAccessToken creates a new non-expiring, valid access token for the given
// userID.
func (db *datastore) FetchLastAccessToken(userID int64) string {
var t []byte
err := db.QueryRow("SELECT token FROM accesstokens WHERE user_id = ? AND (expires IS NULL OR expires > "+db.now()+") ORDER BY created DESC LIMIT 1", userID).Scan(&t)
switch {
case err == sql.ErrNoRows:
return ""
case err != nil:
log.Error("Failed selecting from accesstoken: %v", err)
return ""
}
u, err := uuid.Parse(t)
if err != nil {
return ""
}
return u.String()
}
// GetAccessToken creates a new non-expiring, valid access token for the given
// userID.
func (db *datastore) GetAccessToken(userID int64) (string, error) {
return db.GetTemporaryOneTimeAccessToken(userID, 0, false)
}
// GetTemporaryAccessToken creates a new valid access token for the given
// userID that remains valid for the given time in seconds. If validSecs is 0,
// the access token doesn't automatically expire.
func (db *datastore) GetTemporaryAccessToken(userID int64, validSecs int) (string, error) {
return db.GetTemporaryOn
85EA
eTimeAccessToken(userID, validSecs, false)
}
// GetTemporaryOneTimeAccessToken creates a new valid access token for the given
// userID that remains valid for the given time in seconds and can only be used
// once if oneTime is true. If validSecs is 0, the access token doesn't
// automatically expire.
func (db *datastore) GetTemporaryOneTimeAccessToken(userID int64, validSecs int, oneTime bool) (string, error) {
u, err := uuid.NewV4()
if err != nil {
log.Error("Unable to generate token: %v", err)
return "", err
}
// Insert UUID to `accesstokens`
binTok := u[:]
expirationVal := "NULL"
if validSecs > 0 {
expirationVal = db.dateAdd(validSecs, "SECOND")
}
_, err = db.Exec("INSERT INTO accesstokens (token, user_id, one_time, expires) VALUES (?, ?, ?, "+expirationVal+")", string(binTok), userID, oneTime)
if err != nil {
log.Error("Couldn't INSERT accesstoken: %v", err)
return "", err
}
return u.String(), nil
}
func (db *datastore) CreatePasswordResetToken(userID int64) (string, error) {
t := id.Generate62RandomString(32)
_, err := db.Exec("INSERT INTO password_resets (user_id, token, used, created) VALUES (?, ?, 0, "+db.now()+")", userID, t)
if err != nil {
log.Error("Couldn't INSERT password_resets: %v", err)
return "", err
}
return t, nil
}
func (db *datastore) GetUserFromPasswordReset(token string) int64 {
var userID int64
err := db.QueryRow("SELECT user_id FROM password_resets WHERE token = ? AND used = 0 AND created > "+db.dateSub(3, "HOUR"), token).Scan(&userID)
if err != nil {
return 0
}
return userID
}
func (db *datastore) ConsumePasswordResetToken(t string) error {
_, err := db.Exec("UPDATE password_resets SET used = 1 WHERE token = ?", t)
if err != nil {
log.Error("Couldn't UPDATE password_resets: %v", err)
return err
}
return nil
}
func (db *datastore) CreateOwnedPost(post *SubmittedPost, accessToken, collAlias, hostName string) (*PublicPost, error) {
var userID, collID int64 = -1, -1
var coll *Collection
var err error
if accessToken != "" {
userID = db.GetUserID(accessToken)
if userID == -1 {
return nil, ErrBadAccessToken
}
if collAlias != "" {
coll, err = db.GetCollection(collAlias)
if err != nil {
return nil, err
}
coll.hostName = hostName
if coll.OwnerID != userID {
return nil, ErrForbiddenCollection
}
collID = coll.ID
}
}
rp := &PublicPost{}
rp.Post, err = db.CreatePost(userID, collID, post)
if err != nil {
return rp, err
}
if coll != nil {
coll.ForPublic()
rp.Collection = &CollectionObj{Collection: *coll}
}
return rp, nil
}
func (db *datastore) CreatePost(userID, collID int64, post *SubmittedPost) (*Post, error) {
idLen := postIDLen
friendlyID := id.GenerateFriendlyRandomString(idLen)
// Handle appearance / font face
appearance := post.Font
if !post.isFontValid() {
appearance = "norm"
}
var err error
ownerID := sql.NullInt64{
Valid: false,
}
ownerCollID := sql.NullInt64{
Valid: false,
}
slug := sql.NullString{"", false}
// If an alias was supplied, we'll add this to the collection as well.
if userID > 0 {
ownerID.Int64 = userID
ownerID.Valid = true
if collID > 0 {
ownerCollID.Int64 = collID
ownerCollID.Valid = true
var slugVal string
if post.Slug != nil && *post.Slug != "" {
slugVal = *post.Slug
} else {
if post.Title != nil && *post.Title != "" {
slugVal = getSlug(*post.Title, post.Language.String)
if slugVal == "" {
slugVal = getSlug(*post.Content, post.Language.String)
}
} else {
slugVal = getSlug(*post.Content, post.Language.String)
}
}
if slugVal == "" {
slugVal = friendlyID
}
slug = sql.NullString{slugVal, true}
}
}
created := time.Now()
if db.driverName == driverSQLite {
// SQLite stores datetimes in UTC, so convert time.Now() to it here
created = created.UTC()
}
if post.Created != nil && *post.Created != "" {
created, err = time.Parse("2006-01-02T15:04:05Z", *post.Created)
if err != nil {
log.Error("Unable to parse Created time '%s': %v", *post.Created, err)
created = time.Now()
if db.driverName == driverSQLite {
// SQLite stores datetimes in UTC, so convert time.Now() to it here
created = created.UTC()
}
}
}
stmt, err := db.Prepare("INSERT INTO posts (id, slug, title, content, text_appearance, language, rtl, privacy, owner_id, collection_id, created, updated, view_count) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, " + db.now() + ", ?)")
if err != nil {
return nil, err
}
defer stmt.Close()
_, err = stmt.Exec(friendlyID, slug, post.Title, post.Content, appearance, post.Language, post.IsRTL, 0, ownerID, ownerCollID, created, 0)
if err != nil {
if db.isDuplicateKeyErr(err) {
// Duplicate entry error; try a new slug
// TODO: make this a little more robust
slug = sql.NullString{id.GenSafeUniqueSlug(slug.String), true}
_, err = stmt.Exec(friendlyID, slug, post.Title, post.Content, appearance, post.Language, post.IsRTL, 0, ownerID, ownerCollID, created, 0)
if err != nil {
return nil, handleFailedPostInsert(fmt.Errorf("Retried slug generation, still failed: %v", err))
}
} else {
return nil, handleFailedPostInsert(err)
}
}
// TODO: return Created field in proper format
return &Post{
ID: friendlyID,
Slug: null.NewString(slug.String, slug.Valid),
Font: appearance,
Language: zero.NewString(post.Language.String, post.Language.Valid),
RTL: zero.NewBool(post.IsRTL.Bool, post.IsRTL.Valid),
OwnerID: null.NewInt(userID, true),
CollectionID: null.NewInt(userID, true),
Created: created.Truncate(time.Second).UTC(),
Updated: time.Now().Truncate(time.Second).UTC(),
Title: zero.NewString(*(post.Title), true),
Content: *(post.Content),
}, nil
}
// UpdateOwnedPost updates an existing post with only the given fields in the
// supplied AuthenticatedPost.
func (db *datastore) UpdateOwnedPost(post *AuthenticatedPost, userID int64) error {
params := []interface{}{}
var queryUpdates, sep, authCondition string
if post.Slug != nil && *post.Slug != "" {
queryUpdates += sep + "slug = ?"
sep = ", "
params = append(params, getSlug(*post.Slug, ""))
}
if post.Content != nil {
queryUpdates += sep + "content = ?"
sep = ", "
params = append(params, post.Content)
}
if post.Title != nil {
queryUpdates += sep + "title = ?"
sep = ", "
params = append(params, post.Title)
}
if post.Language.Valid {
queryUpdates += sep + "language = ?"
sep = ", "
params = append(params, post.Language.String)
}
if post.IsRTL.Valid {
queryUpdates += sep + "rtl = ?"
sep = ", "
params = append(params, post.IsRTL.Bool)
}
if post.Font != "" {
queryUpdates += sep + "text_appearance = ?"
sep = ", "
params = append(params, post.Font)
}
if post.Created != nil {
createTime, err := time.Parse(postMetaDateFormat, *post.Created)
if err != nil {
log.Error("Unable to parse Created date: %v", err)
return fmt.Errorf("That's the incorrect format for Created date.")
}
queryUpdates += sep + "created = ?"
sep = ", "
params = append(params, createTime)
}
// WHERE parameters...
// id = ?
params = append(params, post.ID)
// AND owner_id = ?
authCondition = "(owner_id = ?)"
params = append(params, userID)
if queryUpdates == "" {
return ErrPostNoUpdatableVals
}
queryUpdates += sep + "updated = " + db.now()
res, err := db.Exec("UPDATE posts SET "+queryUpdates+" WHERE id = ? AND "+authCondition, params...)
if err != nil {
log.Error("Unable to update owned post: %v", err)
return err
}
rowsAffected, _ := res.RowsAffected()
if rowsAffected == 0 {
// Show the correct error message if nothing was updated
var dummy int
err := db.QueryRow("SELECT 1 FROM posts WHERE id = ? AND "+authCondition, post.ID, params[len(params)-1]).Scan(&dummy)
switch {
case err == sql.ErrNoRows:
return ErrUnauthorizedEditPost
case err != nil:
log.Error("Failed selecting from posts: %v", err)
}
return nil
}
return nil
}
func (db *datastore) GetCollectionBy(condition string, value interface{}) (*Collection, error) {
c := &Collection{}
// FIXME: change Collection to reflect database values. Add helper functions to get actual values
var styleSheet, script, signature, format zero.String
row := db.QueryRow("SELECT id, alias, title, description, style_sheet, script, post_signature, format, owner_id, privacy, view_count FROM collections WHERE "+condition, value)
err := row.Scan(&c.ID, &c.Alias, &c.Title, &c.Description, &styleSheet, &script, &signature, &format, &c.OwnerID, &c.Visibility, &c.Views)
switch {
case err == sql.ErrNoRows:
return nil, impart.HTTPError{http.StatusNotFound, "Collection doesn't exist."}
case db.isHighLoadError(err):
return nil, ErrUnavailable
case err != nil:
log.Error("Failed selecting from collections: %v", err)
return nil, err
}
c.StyleSheet = styleSheet.String
c.Script = script.String
c.Signature = signature.String
c.Format = format.String
c.Public = c.IsPublic()
c.Monetization = db.GetCollectionAttribute(c.ID, "monetization_pointer")
c.Verification = db.GetCollectionAttribute(c.ID, "verification_link")
c.db = db
return c, nil
}
func (db *datastore) GetCollection(alias string) (*Collection, error) {
return db.GetCollectionBy("alias = ?", alias)
}
func (db *datastore) GetCollectionForPad(alias string) (*Collection, error) {
c := &Collection{Alias: alias}
row := db.QueryRow("SELECT id, alias, title, description, privacy FROM collections WHERE alias = ?", alias)
err := row.Scan(&c.ID, &c.Alias, &c.Title, &c.Description, &c.Visibility)
switch {
case err == sql.ErrNoRows:
return c, impart.HTTPError{http.StatusNotFound, "Collection doesn't exist."}
case err != nil:
log.Error("Failed selecting from collections: %v", err)
return c, ErrInternalGeneral
}
c.Public = c.IsPublic()
return c, nil
}
func (db *datastore) GetCollectionByID(id int64) (*Collection, error) {
return db.GetCollectionBy("id = ?", id)
}
func (db *datastore) GetCollectionFromDomain(host string) (*Collection, error) {
return db.GetCollectionBy("host = ?", host)
}
func (db *datastore) UpdateCollection(app *App, c *SubmittedCollection, alias string) error {
// Truncate fields correctly, so we don't get "Data too long for column" errors in MySQL (writefreely#600)
if c.Title != nil {
*c.Title = parse.Truncate(*c.Title, collMaxLengthTitle)
}
if c.Description != nil {
*c.Description = parse.Truncate(*c.Description, collMaxLengthDescription)
}
q := query.NewUpdate().
SetStringPtr(c.Title, "title").
SetStringPtr(c.Description, "description").
SetStringPtr(c.StyleSheet, "style_sheet").
SetStringPtr(c.Script, "script").
SetStringPtr(c.Signature, "post_signature")
if c.Format != nil {
cf := &CollectionFormat{Format: c.Format.String}
if cf.Valid() {
q.SetNullString(c.Format, "format")
}
}
var updatePass bool
if c.Visibility != nil && (collVisibility(*c.Visibility)&CollProtected == 0 || c.Pass != "") {
q.SetIntPtr(c.Visibility, "privacy")
if c.Pass != "" {
updatePass = true
}
}
// WHERE values
q.Where("alias = ? AND owner_id = ?", alias, c.OwnerID)
if q.Updates == "" && c.Monetization == nil {
return ErrPostNoUpdatableVals
}
// Find any current domain
var collID int64
var rowsAffected int64
var changed bool
var res sql.Result
err := db.QueryRow("SELECT id FROM collections WHERE alias = ?", alias).Scan(&collID)
if err != nil {
log.Error("Failed selecting from collections: %v. Some things won't work.", err)
}
// Update MathJax value
if c.MathJax {
if db.driverName == driverSQLite {
_, err = db.Exec("INSERT OR REPLACE INTO collectionattributes (collection_id, attribute, value) VALUES (?, ?, ?)", collID, "render_mathjax", "1")
} else {
_, err = db.Exec("INSERT INTO collectionattributes (collection_id, attribute, value) VALUES (?, ?, ?) "+db.upsert("collection_id", "attribute")+" value = ?", collID, "render_mathjax", "1", "1")
}
if err != nil {
log.Error("Unable to insert render_mathjax value: %v", err)
return err
}
} else {
_, err = db.Exec("DELETE FROM collectionattributes WHERE collection_id = ? AND attribute = ?", collID, "render_mathjax")
if err != nil {
log.Error("Unable to delete render_mathjax value: %v", err)
return err
}
}
// Update Verification link value
if c.Verification != nil {
skipUpdate := false
if *c.Verification != "" {
// Strip away any excess spaces
trimmed := strings.TrimSpace(*c.Verification)
if strings.HasPrefix(trimmed, "@") && strings.Count(trimmed, "@") == 2 {
// This looks like a fediverse handle, so resolve profile URL
profileURL, err := GetProfileURLFromHandle(app, trimmed)
if err != nil || profileURL == "" {
log.Error("Couldn't find user %s: %v", trimmed, err)
skipUpdate = true
} else {
c.Verification = &profileURL
}
} else {
if !strings.HasPrefix(trimmed, "http") {
trimmed = "https://" + trimmed
}
vu, err := url.Parse(trimmed)
if err != nil {
// Value appears invalid, so don't update
skipUpdate = true
} else {
s := vu.String()
c.Verification = &s
}
}
}
if !skipUpdate {
err = db.SetCollectionAttribute(collID, "verification_link", *c.Verification)
if err != nil {
log.Error("Unable to insert verification_link value: %v", err)
return err
}
}
}