includes/changes/RecentChange.php

   1 <?php
   2 /**
   3  * Utility class for creating and accessing recent change entries.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 /**
  24  * Utility class for creating new RC entries
  25  *
  26  * mAttribs:
  27  *  rc_id           id of the row in the recentchanges table
  28  *  rc_timestamp    time the entry was made
  29  *  rc_namespace    namespace #
  30  *  rc_title        non-prefixed db key
  31  *  rc_type         is new entry, used to determine whether updating is necessary
  32  *  rc_source       string representation of change source
  33  *  rc_minor        is minor
  34  *  rc_cur_id       page_id of associated page entry
  35  *  rc_user         user id who made the entry
  36  *  rc_user_text    user name who made the entry
  37  *  rc_actor        actor id who made the entry
  38  *  rc_comment      edit summary
  39  *  rc_this_oldid   rev_id associated with this entry (or zero)
  40  *  rc_last_oldid   rev_id associated with the entry before this one (or zero)
  41  *  rc_bot          is bot, hidden
  42  *  rc_ip           IP address of the user in dotted quad notation
  43  *  rc_new          obsolete, use rc_type==RC_NEW
  44  *  rc_patrolled    boolean whether or not someone has marked this edit as patrolled
  45  *  rc_old_len      integer byte length of the text before the edit
  46  *  rc_new_len      the same after the edit
  47  *  rc_deleted      partial deletion
  48  *  rc_logid        the log_id value for this log entry (or zero)
  49  *  rc_log_type     the log type (or null)
  50  *  rc_log_action   the log action (or null)
  51  *  rc_params       log params
  52  *
  53  * mExtra:
  54  *  prefixedDBkey   prefixed db key, used by external app via msg queue
  55  *  lastTimestamp   timestamp of previous entry, used in WHERE clause during update
  56  *  oldSize         text size before the change
  57  *  newSize         text size after the change
  58  *  pageStatus      status of the page: created, deleted, moved, restored, changed
  59  *
  60  * temporary:       not stored in the database
  61  *      notificationtimestamp
  62  *      numberofWatchingusers
  63  *
  64  * @todo Deprecate access to mAttribs (direct or via getAttributes). Right now
  65  *  we're having to include both rc_comment and rc_comment_text/rc_comment_data
  66  *  so random crap works right.
  67  */
  68 class RecentChange {
  69         // Constants for the rc_source field.  Extensions may also have
  70         // their own source constants.
  71         const SRC_EDIT = 'mw.edit';
  72         const SRC_NEW = 'mw.new';
  73         const SRC_LOG = 'mw.log';
  74         const SRC_EXTERNAL = 'mw.external'; // obsolete
  75         const SRC_CATEGORIZE = 'mw.categorize';
  76
  77         const PRC_UNPATROLLED = 0;
  78         const PRC_PATROLLED = 1;
  79         const PRC_AUTOPATROLLED = 2;
  80
  81         /**
  82          * @var bool For save() - save to the database only, without any events.
  83          */
  84         const SEND_NONE = true;
  85
  86         /**
  87          * @var bool For save() - do emit the change to RCFeeds (usually public).
  88          */
  89         const SEND_FEED = false;
  90
  91         public $mAttribs = [];
  92         public $mExtra = [];
  93
  94         /**
  95          * @var Title
  96          */
  97         public $mTitle = false;
  98
  99         /**
 100          * @var User
 101          */
 102         private $mPerformer = false;
 103
 104         public $numberofWatchingusers = 0; # Dummy to prevent error message in SpecialRecentChangesLinked
 105         public $notificationtimestamp;
 106
 107         /**
 108          * @var int Line number of recent change. Default -1.
 109          */
 110         public $counter = -1;
 111
 112         /**
 113          * @var array List of tags to apply
 114          */
 115         private $tags = [];
 116
 117         /**
 118          * @var array Array of change types
 119          */
 120         private static $changeTypes = [
 121                 'edit' => RC_EDIT,
 122                 'new' => RC_NEW,
 123                 'log' => RC_LOG,
 124                 'external' => RC_EXTERNAL,
 125                 'categorize' => RC_CATEGORIZE,
 126         ];
 127
 128         # Factory methods
 129
 130         /**
 131          * @param mixed $row
 132          * @return RecentChange
 133          */
 134         public static function newFromRow( $row ) {
 135                 $rc = new RecentChange;
 136                 $rc->loadFromRow( $row );
 137
 138                 return $rc;
 139         }
 140
 141         /**
 142          * Parsing text to RC_* constants
 143          * @since 1.24
 144          * @param string|array $type
 145          * @throws MWException
 146          * @return int|array RC_TYPE
 147          */
 148         public static function parseToRCType( $type ) {
 149                 if ( is_array( $type ) ) {
 150                         $retval = [];
 151                         foreach ( $type as $t ) {
 152                                 $retval[] = self::parseToRCType( $t );
 153                         }
 154
 155                         return $retval;
 156                 }
 157
 158                 if ( !array_key_exists( $type, self::$changeTypes ) ) {
 159                         throw new MWException( "Unknown type '$type'" );
 160                 }
 161                 return self::$changeTypes[$type];
 162         }
 163
 164         /**
 165          * Parsing RC_* constants to human-readable test
 166          * @since 1.24
 167          * @param int $rcType
 168          * @return string $type
 169          */
 170         public static function parseFromRCType( $rcType ) {
 171                 return array_search( $rcType, self::$changeTypes, true ) ?: "$rcType";
 172         }
 173
 174         /**
 175          * Get an array of all change types
 176          *
 177          * @since 1.26
 178          *
 179          * @return array
 180          */
 181         public static function getChangeTypes() {
 182                 return array_keys( self::$changeTypes );
 183         }
 184
 185         /**
 186          * Obtain the recent change with a given rc_id value
 187          *
 188          * @param int $rcid The rc_id value to retrieve
 189          * @return RecentChange|null
 190          */
 191         public static function newFromId( $rcid ) {
 192                 return self::newFromConds( [ 'rc_id' => $rcid ], __METHOD__ );
 193         }
 194
 195         /**
 196          * Find the first recent change matching some specific conditions
 197          *
 198          * @param array $conds Array of conditions
 199          * @param mixed $fname Override the method name in profiling/logs
 200          * @param int $dbType DB_* constant
 201          *
 202          * @return RecentChange|null
 203          */
 204         public static function newFromConds(
 205                 $conds,
 206                 $fname = __METHOD__,
 207                 $dbType = DB_REPLICA
 208         ) {
 209                 $db = wfGetDB( $dbType );
 210                 $rcQuery = self::getQueryInfo();
 211                 $row = $db->selectRow(
 212                         $rcQuery['tables'], $rcQuery['fields'], $conds, $fname, [], $rcQuery['joins']
 213                 );
 214                 if ( $row !== false ) {
 215                         return self::newFromRow( $row );
 216                 } else {
 217                         return null;
 218                 }
 219         }
 220
 221         /**
 222          * Return the list of recentchanges fields that should be selected to create
 223          * a new recentchanges object.
 224          * @deprecated since 1.31, use self::getQueryInfo() instead.
 225          * @return array
 226          */
 227         public static function selectFields() {
 228                 global $wgActorTableSchemaMigrationStage;
 229
 230                 wfDeprecated( __METHOD__, '1.31' );
 231                 if ( $wgActorTableSchemaMigrationStage & SCHEMA_COMPAT_READ_NEW ) {
 232                         // If code is using this instead of self::getQueryInfo(), there's a
 233                         // decent chance it's going to try to directly access
 234                         // $row->rc_user or $row->rc_user_text and we can't give it
 235                         // useful values here once those aren't being used anymore.
 236                         throw new BadMethodCallException(
 237                                 'Cannot use ' . __METHOD__
 238                                         . ' when $wgActorTableSchemaMigrationStage has SCHEMA_COMPAT_READ_NEW'
 239                         );
 240                 }
 241
 242                 return [
 243                         'rc_id',
 244                         'rc_timestamp',
 245                         'rc_user',
 246                         'rc_user_text',
 247                         'rc_actor' => 'NULL',
 248                         'rc_namespace',
 249                         'rc_title',
 250                         'rc_minor',
 251                         'rc_bot',
 252                         'rc_new',
 253                         'rc_cur_id',
 254                         'rc_this_oldid',
 255                         'rc_last_oldid',
 256                         'rc_type',
 257                         'rc_source',
 258                         'rc_patrolled',
 259                         'rc_ip',
 260                         'rc_old_len',
 261                         'rc_new_len',
 262                         'rc_deleted',
 263                         'rc_logid',
 264                         'rc_log_type',
 265                         'rc_log_action',
 266                         'rc_params',
 267                 ] + CommentStore::getStore()->getFields( 'rc_comment' );
 268         }
 269
 270         /**
 271          * Return the tables, fields, and join conditions to be selected to create
 272          * a new recentchanges object.
 273          * @since 1.31
 274          * @return array With three keys:
 275          *   - tables: (string[]) to include in the `$table` to `IDatabase->select()`
 276          *   - fields: (string[]) to include in the `$vars` to `IDatabase->select()`
 277          *   - joins: (array) to include in the `$join_conds` to `IDatabase->select()`
 278          */
 279         public static function getQueryInfo() {
 280                 $commentQuery = CommentStore::getStore()->getJoin( 'rc_comment' );
 281                 $actorQuery = ActorMigration::newMigration()->getJoin( 'rc_user' );
 282                 return [
 283                         'tables' => [ 'recentchanges' ] + $commentQuery['tables'] + $actorQuery['tables'],
 284                         'fields' => [
 285                                 'rc_id',
 286                                 'rc_timestamp',
 287                                 'rc_namespace',
 288                                 'rc_title',
 289                                 'rc_minor',
 290                                 'rc_bot',
 291                                 'rc_new',
 292                                 'rc_cur_id',
 293                                 'rc_this_oldid',
 294                                 'rc_last_oldid',
 295                                 'rc_type',
 296                                 'rc_source',
 297                                 'rc_patrolled',
 298                                 'rc_ip',
 299                                 'rc_old_len',
 300                                 'rc_new_len',
 301                                 'rc_deleted',
 302                                 'rc_logid',
 303                                 'rc_log_type',
 304                                 'rc_log_action',
 305                                 'rc_params',
 306                         ] + $commentQuery['fields'] + $actorQuery['fields'],
 307                         'joins' => $commentQuery['joins'] + $actorQuery['joins'],
 308                 ];
 309         }
 310
 311         # Accessors
 312
 313         /**
 314          * @param array $attribs
 315          */
 316         public function setAttribs( $attribs ) {
 317                 $this->mAttribs = $attribs;
 318         }
 319
 320         /**
 321          * @param array $extra
 322          */
 323         public function setExtra( $extra ) {
 324                 $this->mExtra = $extra;
 325         }
 326
 327         /**
 328          * @return Title
 329          */
 330         public function &getTitle() {
 331                 if ( $this->mTitle === false ) {
 332                         $this->mTitle = Title::makeTitle( $this->mAttribs['rc_namespace'], $this->mAttribs['rc_title'] );
 333                 }
 334
 335                 return $this->mTitle;
 336         }
 337
 338         /**
 339          * Get the User object of the person who performed this change.
 340          *
 341          * @return User
 342          */
 343         public function getPerformer() {
 344                 if ( $this->mPerformer === false ) {
 345                         if ( !empty( $this->mAttribs['rc_actor'] ) ) {
 346                                 $this->mPerformer = User::newFromActorId( $this->mAttribs['rc_actor'] );
 347                         } elseif ( !empty( $this->mAttribs['rc_user'] ) ) {
 348                                 $this->mPerformer = User::newFromId( $this->mAttribs['rc_user'] );
 349                         } elseif ( !empty( $this->mAttribs['rc_user_text'] ) ) {
 350                                 $this->mPerformer = User::newFromName( $this->mAttribs['rc_user_text'], false );
 351                         } else {
 352                                 throw new MWException( 'RecentChange object lacks rc_actor, rc_user, and rc_user_text' );
 353                         }
 354                 }
 355
 356                 return $this->mPerformer;
 357         }
 358
 359         /**
 360          * Writes the data in this object to the database
 361          *
 362          * For compatibility reasons, the SEND_ constants internally reference a value
 363          * that may seem negated from their purpose (none=true, feed=false). This is
 364          * because the parameter used to be called "$noudp", defaulting to false.
 365          *
 366          * @param bool $send self::SEND_FEED or self::SEND_NONE
 367          */
 368         public function save( $send = self::SEND_FEED ) {
 369                 global $wgPutIPinRC, $wgUseEnotif, $wgShowUpdatedMarker;
 370
 371                 if ( is_string( $send ) ) {
 372                         // Callers used to pass undocumented strings like 'noudp'
 373                         // or 'pleasedontudp' instead of self::SEND_NONE (true).
 374                         // @deprecated since 1.31 Use SEND_NONE instead.
 375                         $send = self::SEND_NONE;
 376                 }
 377
 378                 $dbw = wfGetDB( DB_MASTER );
 379                 if ( !is_array( $this->mExtra ) ) {
 380                         $this->mExtra = [];
 381                 }
 382
 383                 if ( !$wgPutIPinRC ) {
 384                         $this->mAttribs['rc_ip'] = '';
 385                 }
 386
 387                 # Strict mode fixups (not-NULL fields)
 388                 foreach ( [ 'minor', 'bot', 'new', 'patrolled', 'deleted' ] as $field ) {
 389                         $this->mAttribs["rc_$field"] = (int)$this->mAttribs["rc_$field"];
 390                 }
 391                 # ...more fixups (NULL fields)
 392                 foreach ( [ 'old_len', 'new_len' ] as $field ) {
 393                         $this->mAttribs["rc_$field"] = isset( $this->mAttribs["rc_$field"] )
 394                                 ? (int)$this->mAttribs["rc_$field"]
 395                                 : null;
 396                 }
 397
 398                 # If our database is strict about IP addresses, use NULL instead of an empty string
 399                 $strictIPs = in_array( $dbw->getType(), [ 'oracle', 'postgres' ] ); // legacy
 400                 if ( $strictIPs && $this->mAttribs['rc_ip'] == '' ) {
 401                         unset( $this->mAttribs['rc_ip'] );
 402                 }
 403
 404                 # Trim spaces on user supplied text
 405                 $this->mAttribs['rc_comment'] = trim( $this->mAttribs['rc_comment'] );
 406
 407                 # Fixup database timestamps
 408                 $this->mAttribs['rc_timestamp'] = $dbw->timestamp( $this->mAttribs['rc_timestamp'] );
 409
 410                 # # If we are using foreign keys, an entry of 0 for the page_id will fail, so use NULL
 411                 if ( $this->mAttribs['rc_cur_id'] == 0 ) {
 412                         unset( $this->mAttribs['rc_cur_id'] );
 413                 }
 414
 415                 $row = $this->mAttribs;
 416
 417                 # Convert mAttribs['rc_comment'] for CommentStore
 418                 $comment = $row['rc_comment'];
 419                 unset( $row['rc_comment'], $row['rc_comment_text'], $row['rc_comment_data'] );
 420                 $row += CommentStore::getStore()->insert( $dbw, 'rc_comment', $comment );
 421
 422                 # Convert mAttribs['rc_user'] etc for ActorMigration
 423                 $user = User::newFromAnyId(
 424                         $row['rc_user'] ?? null,
 425                         $row['rc_user_text'] ?? null,
 426                         $row['rc_actor'] ?? null
 427                 );
 428                 unset( $row['rc_user'], $row['rc_user_text'], $row['rc_actor'] );
 429                 $row += ActorMigration::newMigration()->getInsertValues( $dbw, 'rc_user', $user );
 430
 431                 # Don't reuse an existing rc_id for the new row, if one happens to be
 432                 # set for some reason.
 433                 unset( $row['rc_id'] );
 434
 435                 # Insert new row
 436                 $dbw->insert( 'recentchanges', $row, __METHOD__ );
 437
 438                 # Set the ID
 439                 $this->mAttribs['rc_id'] = $dbw->insertId();
 440
 441                 # Notify extensions
 442                 // Avoid PHP 7.1 warning from passing $this by reference
 443                 $rc = $this;
 444                 Hooks::run( 'RecentChange_save', [ &$rc ] );
 445
 446                 if ( count( $this->tags ) ) {
 447                         ChangeTags::addTags( $this->tags, $this->mAttribs['rc_id'],
 448                                 $this->mAttribs['rc_this_oldid'], $this->mAttribs['rc_logid'], null, $this );
 449                 }
 450
 451                 if ( $send === self::SEND_FEED ) {
 452                         // Emit the change to external applications via RCFeeds.
 453                         $this->notifyRCFeeds();
 454                 }
 455
 456                 # E-mail notifications
 457                 if ( $wgUseEnotif || $wgShowUpdatedMarker ) {
 458                         $editor = $this->getPerformer();
 459                         $title = $this->getTitle();
 460
 461                         // Never send an RC notification email about categorization changes
 462                         if (
 463                                 Hooks::run( 'AbortEmailNotification', [ $editor, $title, $this ] ) &&
 464                                 $this->mAttribs['rc_type'] != RC_CATEGORIZE
 465                         ) {
 466                                 // @FIXME: This would be better as an extension hook
 467                                 // Send emails or email jobs once this row is safely committed
 468                                 $dbw->onTransactionCommitOrIdle(
 469                                         function () use ( $editor, $title ) {
 470                                                 $enotif = new EmailNotification();
 471                                                 $enotif->notifyOnPageChange(
 472                                                         $editor,
 473                                                         $title,
 474                                                         $this->mAttribs['rc_timestamp'],
 475                                                         $this->mAttribs['rc_comment'],
 476                                                         $this->mAttribs['rc_minor'],
 477                                                         $this->mAttribs['rc_last_oldid'],
 478                                                         $this->mExtra['pageStatus']
 479                                                 );
 480                                         },
 481                                         __METHOD__
 482                                 );
 483                         }
 484                 }
 485
 486                 // Update the cached list of active users
 487                 if ( $this->mAttribs['rc_user'] > 0 ) {
 488                         JobQueueGroup::singleton()->lazyPush( RecentChangesUpdateJob::newCacheUpdateJob() );
 489                 }
 490         }
 491
 492         /**
 493          * Notify all the feeds about the change.
 494          * @param array|null $feeds Optional feeds to send to, defaults to $wgRCFeeds
 495          */
 496         public function notifyRCFeeds( array $feeds = null ) {
 497                 global $wgRCFeeds;
 498                 if ( $feeds === null ) {
 499                         $feeds = $wgRCFeeds;
 500                 }
 501
 502                 $performer = $this->getPerformer();
 503
 504                 foreach ( $feeds as $params ) {
 505                         $params += [
 506                                 'omit_bots' => false,
 507                                 'omit_anon' => false,
 508                                 'omit_user' => false,
 509                                 'omit_minor' => false,
 510                                 'omit_patrolled' => false,
 511                         ];
 512
 513                         if (
 514                                 ( $params['omit_bots'] && $this->mAttribs['rc_bot'] ) ||
 515                                 ( $params['omit_anon'] && $performer->isAnon() ) ||
 516                                 ( $params['omit_user'] && !$performer->isAnon() ) ||
 517                                 ( $params['omit_minor'] && $this->mAttribs['rc_minor'] ) ||
 518                                 ( $params['omit_patrolled'] && $this->mAttribs['rc_patrolled'] ) ||
 519                                 $this->mAttribs['rc_type'] == RC_EXTERNAL
 520                         ) {
 521                                 continue;
 522                         }
 523
 524                         $actionComment = $this->mExtra['actionCommentIRC'] ?? null;
 525
 526                         $feed = RCFeed::factory( $params );
 527                         $feed->notify( $this, $actionComment );
 528                 }
 529         }
 530
 531         /**
 532          * @since 1.22
 533          * @deprecated since 1.29 Use RCFeed::factory() instead
 534          * @param string $uri URI to get the engine object for
 535          * @param array $params
 536          * @return RCFeedEngine The engine object
 537          * @throws MWException
 538          */
 539         public static function getEngine( $uri, $params = [] ) {
 540                 // TODO: Merge into RCFeed::factory().
 541                 global $wgRCEngines;
 542                 $scheme = parse_url( $uri, PHP_URL_SCHEME );
 543                 if ( !$scheme ) {
 544                         throw new MWException( "Invalid RCFeed uri: '$uri'" );
 545                 }
 546                 if ( !isset( $wgRCEngines[$scheme] ) ) {
 547                         throw new MWException( "Unknown RCFeedEngine scheme: '$scheme'" );
 548                 }
 549                 if ( defined( 'MW_PHPUNIT_TEST' ) && is_object( $wgRCEngines[$scheme] ) ) {
 550                         return $wgRCEngines[$scheme];
 551                 }
 552                 return new $wgRCEngines[$scheme]( $params );
 553         }
 554
 555         /**
 556          * Mark a given change as patrolled
 557          *
 558          * @param RecentChange|int $change RecentChange or corresponding rc_id
 559          * @param bool $auto For automatic patrol
 560          * @param string|string[]|null $tags Change tags to add to the patrol log entry
 561          *   ($user should be able to add the specified tags before this is called)
 562          * @return array See doMarkPatrolled(), or null if $change is not an existing rc_id
 563          */
 564         public static function markPatrolled( $change, $auto = false, $tags = null ) {
 565                 global $wgUser;
 566
 567                 $change = $change instanceof RecentChange
 568                         ? $change
 569                         : self::newFromId( $change );
 570
 571                 if ( !$change instanceof RecentChange ) {
 572                         return null;
 573                 }
 574
 575                 return $change->doMarkPatrolled( $wgUser, $auto, $tags );
 576         }
 577
 578         /**
 579          * Mark this RecentChange as patrolled
 580          *
 581          * NOTE: Can also return 'rcpatroldisabled', 'hookaborted' and
 582          * 'markedaspatrollederror-noautopatrol' as errors
 583          * @param User $user User object doing the action
 584          * @param bool $auto For automatic patrol
 585          * @param string|string[]|null $tags Change tags to add to the patrol log entry
 586          *   ($user should be able to add the specified tags before this is called)
 587          * @return array Array of permissions errors, see Title::getUserPermissionsErrors()
 588          */
 589         public function doMarkPatrolled( User $user, $auto = false, $tags = null ) {
 590                 global $wgUseRCPatrol, $wgUseNPPatrol, $wgUseFilePatrol;
 591
 592                 $errors = [];
 593                 // If recentchanges patrol is disabled, only new pages or new file versions
 594                 // can be patrolled, provided the appropriate config variable is set
 595                 if ( !$wgUseRCPatrol && ( !$wgUseNPPatrol || $this->getAttribute( 'rc_type' ) != RC_NEW ) &&
 596                         ( !$wgUseFilePatrol || !( $this->getAttribute( 'rc_type' ) == RC_LOG &&
 597                         $this->getAttribute( 'rc_log_type' ) == 'upload' ) ) ) {
 598                         $errors[] = [ 'rcpatroldisabled' ];
 599                 }
 600                 // Automatic patrol needs "autopatrol", ordinary patrol needs "patrol"
 601                 $right = $auto ? 'autopatrol' : 'patrol';
 602                 $errors = array_merge( $errors, $this->getTitle()->getUserPermissionsErrors( $right, $user ) );
 603                 if ( !Hooks::run( 'MarkPatrolled',
 604                                         [ $this->getAttribute( 'rc_id' ), &$user, false, $auto ] )
 605                 ) {
 606                         $errors[] = [ 'hookaborted' ];
 607                 }
 608                 // Users without the 'autopatrol' right can't patrol their
 609                 // own revisions
 610                 if ( $user->getName() === $this->getAttribute( 'rc_user_text' )
 611                         && !$user->isAllowed( 'autopatrol' )
 612                 ) {
 613                         $errors[] = [ 'markedaspatrollederror-noautopatrol' ];
 614                 }
 615                 if ( $errors ) {
 616                         return $errors;
 617                 }
 618                 // If the change was patrolled already, do nothing
 619                 if ( $this->getAttribute( 'rc_patrolled' ) ) {
 620                         return [];
 621                 }
 622                 // Actually set the 'patrolled' flag in RC
 623                 $this->reallyMarkPatrolled();
 624                 // Log this patrol event
 625                 PatrolLog::record( $this, $auto, $user, $tags );
 626
 627                 Hooks::run(
 628                         'MarkPatrolledComplete',
 629                         [ $this->getAttribute( 'rc_id' ), &$user, false, $auto ]
 630                 );
 631
 632                 return [];
 633         }
 634
 635         /**
 636          * Mark this RecentChange patrolled, without error checking
 637          * @return int Number of affected rows
 638          */
 639         public function reallyMarkPatrolled() {
 640                 $dbw = wfGetDB( DB_MASTER );
 641                 $dbw->update(
 642                         'recentchanges',
 643                         [
 644                                 'rc_patrolled' => self::PRC_PATROLLED
 645                         ],
 646                         [
 647                                 'rc_id' => $this->getAttribute( 'rc_id' )
 648                         ],
 649                         __METHOD__
 650                 );
 651                 // Invalidate the page cache after the page has been patrolled
 652                 // to make sure that the Patrol link isn't visible any longer!
 653                 $this->getTitle()->invalidateCache();
 654
 655                 return $dbw->affectedRows();
 656         }
 657
 658         /**
 659          * Makes an entry in the database corresponding to an edit
 660          *
 661          * @param string $timestamp
 662          * @param Title $title
 663          * @param bool $minor
 664          * @param User $user
 665          * @param string $comment
 666          * @param int $oldId
 667          * @param string $lastTimestamp
 668          * @param bool $bot
 669          * @param string $ip
 670          * @param int $oldSize
 671          * @param int $newSize
 672          * @param int $newId
 673          * @param int $patrol
 674          * @param array $tags
 675          * @return RecentChange
 676          */
 677         public static function notifyEdit(
 678                 $timestamp, $title, $minor, $user, $comment, $oldId, $lastTimestamp,
 679                 $bot, $ip = '', $oldSize = 0, $newSize = 0, $newId = 0, $patrol = 0,
 680                 $tags = []
 681         ) {
 682                 $rc = new RecentChange;
 683                 $rc->mTitle = $title;
 684                 $rc->mPerformer = $user;
 685                 $rc->mAttribs = [
 686                         'rc_timestamp' => $timestamp,
 687                         'rc_namespace' => $title->getNamespace(),
 688                         'rc_title' => $title->getDBkey(),
 689                         'rc_type' => RC_EDIT,
 690                         'rc_source' => self::SRC_EDIT,
 691                         'rc_minor' => $minor ? 1 : 0,
 692                         'rc_cur_id' => $title->getArticleID(),
 693                         'rc_user' => $user->getId(),
 694                         'rc_user_text' => $user->getName(),
 695                         'rc_actor' => $user->getActorId(),
 696                         'rc_comment' => &$comment,
 697                         'rc_comment_text' => &$comment,
 698                         'rc_comment_data' => null,
 699                         'rc_this_oldid' => $newId,
 700                         'rc_last_oldid' => $oldId,
 701                         'rc_bot' => $bot ? 1 : 0,
 702                         'rc_ip' => self::checkIPAddress( $ip ),
 703                         'rc_patrolled' => intval( $patrol ),
 704                         'rc_new' => 0, # obsolete
 705                         'rc_old_len' => $oldSize,
 706                         'rc_new_len' => $newSize,
 707                         'rc_deleted' => 0,
 708                         'rc_logid' => 0,
 709                         'rc_log_type' => null,
 710                         'rc_log_action' => '',
 711                         'rc_params' => ''
 712                 ];
 713
 714                 $rc->mExtra = [
 715                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 716                         'lastTimestamp' => $lastTimestamp,
 717                         'oldSize' => $oldSize,
 718                         'newSize' => $newSize,
 719                         'pageStatus' => 'changed'
 720                 ];
 721
 722                 DeferredUpdates::addCallableUpdate(
 723                         function () use ( $rc, $tags ) {
 724                                 $rc->addTags( $tags );
 725                                 $rc->save();
 726                         },
 727                         DeferredUpdates::POSTSEND,
 728                         wfGetDB( DB_MASTER )
 729                 );
 730
 731                 return $rc;
 732         }
 733
 734         /**
 735          * Makes an entry in the database corresponding to page creation
 736          * Note: the title object must be loaded with the new id using resetArticleID()
 737          *
 738          * @param string $timestamp
 739          * @param Title $title
 740          * @param bool $minor
 741          * @param User $user
 742          * @param string $comment
 743          * @param bool $bot
 744          * @param string $ip
 745          * @param int $size
 746          * @param int $newId
 747          * @param int $patrol
 748          * @param array $tags
 749          * @return RecentChange
 750          */
 751         public static function notifyNew(
 752                 $timestamp, $title, $minor, $user, $comment, $bot,
 753                 $ip = '', $size = 0, $newId = 0, $patrol = 0, $tags = []
 754         ) {
 755                 $rc = new RecentChange;
 756                 $rc->mTitle = $title;
 757                 $rc->mPerformer = $user;
 758                 $rc->mAttribs = [
 759                         'rc_timestamp' => $timestamp,
 760                         'rc_namespace' => $title->getNamespace(),
 761                         'rc_title' => $title->getDBkey(),
 762                         'rc_type' => RC_NEW,
 763                         'rc_source' => self::SRC_NEW,
 764                         'rc_minor' => $minor ? 1 : 0,
 765                         'rc_cur_id' => $title->getArticleID(),
 766                         'rc_user' => $user->getId(),
 767                         'rc_user_text' => $user->getName(),
 768                         'rc_actor' => $user->getActorId(),
 769                         'rc_comment' => &$comment,
 770                         'rc_comment_text' => &$comment,
 771                         'rc_comment_data' => null,
 772                         'rc_this_oldid' => $newId,
 773                         'rc_last_oldid' => 0,
 774                         'rc_bot' => $bot ? 1 : 0,
 775                         'rc_ip' => self::checkIPAddress( $ip ),
 776                         'rc_patrolled' => intval( $patrol ),
 777                         'rc_new' => 1, # obsolete
 778                         'rc_old_len' => 0,
 779                         'rc_new_len' => $size,
 780                         'rc_deleted' => 0,
 781                         'rc_logid' => 0,
 782                         'rc_log_type' => null,
 783                         'rc_log_action' => '',
 784                         'rc_params' => ''
 785                 ];
 786
 787                 $rc->mExtra = [
 788                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 789                         'lastTimestamp' => 0,
 790                         'oldSize' => 0,
 791                         'newSize' => $size,
 792                         'pageStatus' => 'created'
 793                 ];
 794
 795                 DeferredUpdates::addCallableUpdate(
 796                         function () use ( $rc, $tags ) {
 797                                 $rc->addTags( $tags );
 798                                 $rc->save();
 799                         },
 800                         DeferredUpdates::POSTSEND,
 801                         wfGetDB( DB_MASTER )
 802                 );
 803
 804                 return $rc;
 805         }
 806
 807         /**
 808          * @param string $timestamp
 809          * @param Title $title
 810          * @param User $user
 811          * @param string $actionComment
 812          * @param string $ip
 813          * @param string $type
 814          * @param string $action
 815          * @param Title $target
 816          * @param string $logComment
 817          * @param string $params
 818          * @param int $newId
 819          * @param string $actionCommentIRC
 820          * @return bool
 821          */
 822         public static function notifyLog( $timestamp, $title, $user, $actionComment, $ip, $type,
 823                 $action, $target, $logComment, $params, $newId = 0, $actionCommentIRC = ''
 824         ) {
 825                 global $wgLogRestrictions;
 826
 827                 # Don't add private logs to RC!
 828                 if ( isset( $wgLogRestrictions[$type] ) && $wgLogRestrictions[$type] != '*' ) {
 829                         return false;
 830                 }
 831                 $rc = self::newLogEntry( $timestamp, $title, $user, $actionComment, $ip, $type, $action,
 832                         $target, $logComment, $params, $newId, $actionCommentIRC );
 833                 $rc->save();
 834
 835                 return true;
 836         }
 837
 838         /**
 839          * @param string $timestamp
 840          * @param Title $title
 841          * @param User $user
 842          * @param string $actionComment
 843          * @param string $ip
 844          * @param string $type
 845          * @param string $action
 846          * @param Title $target
 847          * @param string $logComment
 848          * @param string $params
 849          * @param int $newId
 850          * @param string $actionCommentIRC
 851          * @param int $revId Id of associated revision, if any
 852          * @param bool $isPatrollable Whether this log entry is patrollable
 853          * @return RecentChange
 854          */
 855         public static function newLogEntry( $timestamp, $title, $user, $actionComment, $ip,
 856                 $type, $action, $target, $logComment, $params, $newId = 0, $actionCommentIRC = '',
 857                 $revId = 0, $isPatrollable = false ) {
 858                 global $wgRequest;
 859
 860                 # # Get pageStatus for email notification
 861                 switch ( $type . '-' . $action ) {
 862                         case 'delete-delete':
 863                         case 'delete-delete_redir':
 864                                 $pageStatus = 'deleted';
 865                                 break;
 866                         case 'move-move':
 867                         case 'move-move_redir':
 868                                 $pageStatus = 'moved';
 869                                 break;
 870                         case 'delete-restore':
 871                                 $pageStatus = 'restored';
 872                                 break;
 873                         case 'upload-upload':
 874                                 $pageStatus = 'created';
 875                                 break;
 876                         case 'upload-overwrite':
 877                         default:
 878                                 $pageStatus = 'changed';
 879                                 break;
 880                 }
 881
 882                 // Allow unpatrolled status for patrollable log entries
 883                 $markPatrolled = $isPatrollable ? $user->isAllowed( 'autopatrol' ) : true;
 884
 885                 $rc = new RecentChange;
 886                 $rc->mTitle = $target;
 887                 $rc->mPerformer = $user;
 888                 $rc->mAttribs = [
 889                         'rc_timestamp' => $timestamp,
 890                         'rc_namespace' => $target->getNamespace(),
 891                         'rc_title' => $target->getDBkey(),
 892                         'rc_type' => RC_LOG,
 893                         'rc_source' => self::SRC_LOG,
 894                         'rc_minor' => 0,
 895                         'rc_cur_id' => $target->getArticleID(),
 896                         'rc_user' => $user->getId(),
 897                         'rc_user_text' => $user->getName(),
 898                         'rc_actor' => $user->getActorId(),
 899                         'rc_comment' => &$logComment,
 900                         'rc_comment_text' => &$logComment,
 901                         'rc_comment_data' => null,
 902                         'rc_this_oldid' => $revId,
 903                         'rc_last_oldid' => 0,
 904                         'rc_bot' => $user->isAllowed( 'bot' ) ? (int)$wgRequest->getBool( 'bot', true ) : 0,
 905                         'rc_ip' => self::checkIPAddress( $ip ),
 906                         'rc_patrolled' => $markPatrolled ? self::PRC_AUTOPATROLLED : self::PRC_UNPATROLLED,
 907                         'rc_new' => 0, # obsolete
 908                         'rc_old_len' => null,
 909                         'rc_new_len' => null,
 910                         'rc_deleted' => 0,
 911                         'rc_logid' => $newId,
 912                         'rc_log_type' => $type,
 913                         'rc_log_action' => $action,
 914                         'rc_params' => $params
 915                 ];
 916
 917                 $rc->mExtra = [
 918                         'prefixedDBkey' => $title->getPrefixedDBkey(),
 919                         'lastTimestamp' => 0,
 920                         'actionComment' => $actionComment, // the comment appended to the action, passed from LogPage
 921                         'pageStatus' => $pageStatus,
 922                         'actionCommentIRC' => $actionCommentIRC
 923                 ];
 924
 925                 return $rc;
 926         }
 927
 928         /**
 929          * Constructs a RecentChange object for the given categorization
 930          * This does not call save() on the object and thus does not write to the db
 931          *
 932          * @since 1.27
 933          *
 934          * @param string $timestamp Timestamp of the recent change to occur
 935          * @param Title $categoryTitle Title of the category a page is being added to or removed from
 936          * @param User|null $user User object of the user that made the change
 937          * @param string $comment Change summary
 938          * @param Title $pageTitle Title of the page that is being added or removed
 939          * @param int $oldRevId Parent revision ID of this change
 940          * @param int $newRevId Revision ID of this change
 941          * @param string $lastTimestamp Parent revision timestamp of this change
 942          * @param bool $bot true, if the change was made by a bot
 943          * @param string $ip IP address of the user, if the change was made anonymously
 944          * @param int $deleted Indicates whether the change has been deleted
 945          * @param bool|null $added true, if the category was added, false for removed
 946          *
 947          * @return RecentChange
 948          */
 949         public static function newForCategorization(
 950                 $timestamp,
 951                 Title $categoryTitle,
 952                 User $user = null,
 953                 $comment,
 954                 Title $pageTitle,
 955                 $oldRevId,
 956                 $newRevId,
 957                 $lastTimestamp,
 958                 $bot,
 959                 $ip = '',
 960                 $deleted = 0,
 961                 $added = null
 962         ) {
 963                 // Done in a backwards compatible way.
 964                 $params = [
 965                         'hidden-cat' => WikiCategoryPage::factory( $categoryTitle )->isHidden()
 966                 ];
 967                 if ( $added !== null ) {
 968                         $params['added'] = $added;
 969                 }
 970
 971                 $rc = new RecentChange;
 972                 $rc->mTitle = $categoryTitle;
 973                 $rc->mPerformer = $user;
 974                 $rc->mAttribs = [
 975                         'rc_timestamp' => $timestamp,
 976                         'rc_namespace' => $categoryTitle->getNamespace(),
 977                         'rc_title' => $categoryTitle->getDBkey(),
 978                         'rc_type' => RC_CATEGORIZE,
 979                         'rc_source' => self::SRC_CATEGORIZE,
 980                         'rc_minor' => 0,
 981                         'rc_cur_id' => $pageTitle->getArticleID(),
 982                         'rc_user' => $user ? $user->getId() : 0,
 983                         'rc_user_text' => $user ? $user->getName() : '',
 984                         'rc_actor' => $user ? $user->getActorId() : null,
 985                         'rc_comment' => &$comment,
 986                         'rc_comment_text' => &$comment,
 987                         'rc_comment_data' => null,
 988                         'rc_this_oldid' => $newRevId,
 989                         'rc_last_oldid' => $oldRevId,
 990                         'rc_bot' => $bot ? 1 : 0,
 991                         'rc_ip' => self::checkIPAddress( $ip ),
 992                         'rc_patrolled' => self::PRC_AUTOPATROLLED, // Always patrolled, just like log entries
 993                         'rc_new' => 0, # obsolete
 994                         'rc_old_len' => null,
 995                         'rc_new_len' => null,
 996                         'rc_deleted' => $deleted,
 997                         'rc_logid' => 0,
 998                         'rc_log_type' => null,
 999                         'rc_log_action' => '',
1000                         'rc_params' => serialize( $params )
1001                 ];
1002
1003                 $rc->mExtra = [
1004                         'prefixedDBkey' => $categoryTitle->getPrefixedDBkey(),
1005                         'lastTimestamp' => $lastTimestamp,
1006                         'oldSize' => 0,
1007                         'newSize' => 0,
1008                         'pageStatus' => 'changed'
1009                 ];
1010
1011                 return $rc;
1012         }
1013
1014         /**
1015          * Get a parameter value
1016          *
1017          * @since 1.27
1018          *
1019          * @param string $name parameter name
1020          * @return mixed
1021          */
1022         public function getParam( $name ) {
1023                 $params = $this->parseParams();
1024                 return $params[$name] ?? null;
1025         }
1026
1027         /**
1028          * Initialises the members of this object from a mysql row object
1029          *
1030          * @param mixed $row
1031          */
1032         public function loadFromRow( $row ) {
1033                 $this->mAttribs = get_object_vars( $row );
1034                 $this->mAttribs['rc_timestamp'] = wfTimestamp( TS_MW, $this->mAttribs['rc_timestamp'] );
1035                 // rc_deleted MUST be set
1036                 $this->mAttribs['rc_deleted'] = $row->rc_deleted;
1037
1038                 if ( isset( $this->mAttribs['rc_ip'] ) ) {
1039                         // Clean up CIDRs for Postgres per T164898. ("127.0.0.1" casts to "127.0.0.1/32")
1040                         $n = strpos( $this->mAttribs['rc_ip'], '/' );
1041                         if ( $n !== false ) {
1042                                 $this->mAttribs['rc_ip'] = substr( $this->mAttribs['rc_ip'], 0, $n );
1043                         }
1044                 }
1045
1046                 $comment = CommentStore::getStore()
1047                         // Legacy because $row may have come from self::selectFields()
1048                         ->getCommentLegacy( wfGetDB( DB_REPLICA ), 'rc_comment', $row, true )
1049                         ->text;
1050                 $this->mAttribs['rc_comment'] = &$comment;
1051                 $this->mAttribs['rc_comment_text'] = &$comment;
1052                 $this->mAttribs['rc_comment_data'] = null;
1053
1054                 $user = User::newFromAnyId(
1055                         $this->mAttribs['rc_user'] ?? null,
1056                         $this->mAttribs['rc_user_text'] ?? null,
1057                         $this->mAttribs['rc_actor'] ?? null
1058                 );
1059                 $this->mAttribs['rc_user'] = $user->getId();
1060                 $this->mAttribs['rc_user_text'] = $user->getName();
1061                 $this->mAttribs['rc_actor'] = $user->getActorId();
1062         }
1063
1064         /**
1065          * Get an attribute value
1066          *
1067          * @param string $name Attribute name
1068          * @return mixed
1069          */
1070         public function getAttribute( $name ) {
1071                 if ( $name === 'rc_comment' ) {
1072                         return CommentStore::getStore()
1073                                 ->getComment( 'rc_comment', $this->mAttribs, true )->text;
1074                 }
1075
1076                 if ( $name === 'rc_user' || $name === 'rc_user_text' || $name === 'rc_actor' ) {
1077                         $user = User::newFromAnyId(
1078                                 $this->mAttribs['rc_user'] ?? null,
1079                                 $this->mAttribs['rc_user_text'] ?? null,
1080                                 $this->mAttribs['rc_actor'] ?? null
1081                         );
1082                         if ( $name === 'rc_user' ) {
1083                                 return $user->getId();
1084                         }
1085                         if ( $name === 'rc_user_text' ) {
1086                                 return $user->getName();
1087                         }
1088                         if ( $name === 'rc_actor' ) {
1089                                 return $user->getActorId();
1090                         }
1091                 }
1092
1093                 return $this->mAttribs[$name] ?? null;
1094         }
1095
1096         /**
1097          * @return array
1098          */
1099         public function getAttributes() {
1100                 return $this->mAttribs;
1101         }
1102
1103         /**
1104          * Gets the end part of the diff URL associated with this object
1105          * Blank if no diff link should be displayed
1106          * @param bool $forceCur
1107          * @return string
1108          */
1109         public function diffLinkTrail( $forceCur ) {
1110                 if ( $this->mAttribs['rc_type'] == RC_EDIT ) {
1111                         $trail = "curid=" . (int)( $this->mAttribs['rc_cur_id'] ) .
1112                                 "&oldid=" . (int)( $this->mAttribs['rc_last_oldid'] );
1113                         if ( $forceCur ) {
1114                                 $trail .= '&diff=0';
1115                         } else {
1116                                 $trail .= '&diff=' . (int)( $this->mAttribs['rc_this_oldid'] );
1117                         }
1118                 } else {
1119                         $trail = '';
1120                 }
1121
1122                 return $trail;
1123         }
1124
1125         /**
1126          * Returns the change size (HTML).
1127          * The lengths can be given optionally.
1128          * @param int $old
1129          * @param int $new
1130          * @return string
1131          */
1132         public function getCharacterDifference( $old = 0, $new = 0 ) {
1133                 if ( $old === 0 ) {
1134                         $old = $this->mAttribs['rc_old_len'];
1135                 }
1136                 if ( $new === 0 ) {
1137                         $new = $this->mAttribs['rc_new_len'];
1138                 }
1139                 if ( $old === null || $new === null ) {
1140                         return '';
1141                 }
1142
1143                 return ChangesList::showCharacterDifference( $old, $new );
1144         }
1145
1146         private static function checkIPAddress( $ip ) {
1147                 global $wgRequest;
1148                 if ( $ip ) {
1149                         if ( !IP::isIPAddress( $ip ) ) {
1150                                 throw new MWException( "Attempt to write \"" . $ip .
1151                                         "\" as an IP address into recent changes" );
1152                         }
1153                 } else {
1154                         $ip = $wgRequest->getIP();
1155                         if ( !$ip ) {
1156                                 $ip = '';
1157                         }
1158                 }
1159
1160                 return $ip;
1161         }
1162
1163         /**
1164          * Check whether the given timestamp is new enough to have a RC row with a given tolerance
1165          * as the recentchanges table might not be cleared out regularly (so older entries might exist)
1166          * or rows which will be deleted soon shouldn't be included.
1167          *
1168          * @param mixed $timestamp MWTimestamp compatible timestamp
1169          * @param int $tolerance Tolerance in seconds
1170          * @return bool
1171          */
1172         public static function isInRCLifespan( $timestamp, $tolerance = 0 ) {
1173                 global $wgRCMaxAge;
1174
1175                 return wfTimestamp( TS_UNIX, $timestamp ) > time() - $tolerance - $wgRCMaxAge;
1176         }
1177
1178         /**
1179          * Parses and returns the rc_params attribute
1180          *
1181          * @since 1.26
1182          *
1183          * @return mixed|bool false on failed unserialization
1184          */
1185         public function parseParams() {
1186                 $rcParams = $this->getAttribute( 'rc_params' );
1187
1188                 Wikimedia\suppressWarnings();
1189                 $unserializedParams = unserialize( $rcParams );
1190                 Wikimedia\restoreWarnings();
1191
1192                 return $unserializedParams;
1193         }
1194
1195         /**
1196          * Tags to append to the recent change,
1197          * and associated revision/log
1198          *
1199          * @since 1.28
1200          *
1201          * @param string|array $tags
1202          */
1203         public function addTags( $tags ) {
1204                 if ( is_string( $tags ) ) {
1205                         $this->tags[] = $tags;
1206                 } else {
1207                         $this->tags = array_merge( $tags, $this->tags );
1208                 }
1209         }
1210 }