includes/api/ApiQueryRecentChanges.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on Oct 19, 2006
   6  *
   7  * Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com"
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  */
  26
  27 /**
  28  * A query action to enumerate the recent changes that were done to the wiki.
  29  * Various filters are supported.
  30  *
  31  * @ingroup API
  32  */
  33 class ApiQueryRecentChanges extends ApiQueryGeneratorBase {
  34
  35         public function __construct( ApiQuery $query, $moduleName ) {
  36                 parent::__construct( $query, $moduleName, 'rc' );
  37         }
  38
  39         private $commentStore;
  40
  41         private $fld_comment = false, $fld_parsedcomment = false, $fld_user = false, $fld_userid = false,
  42                 $fld_flags = false, $fld_timestamp = false, $fld_title = false, $fld_ids = false,
  43                 $fld_sizes = false, $fld_redirect = false, $fld_patrolled = false, $fld_loginfo = false,
  44                 $fld_tags = false, $fld_sha1 = false, $token = [];
  45
  46         private $tokenFunctions;
  47
  48         /**
  49          * Get an array mapping token names to their handler functions.
  50          * The prototype for a token function is func($pageid, $title, $rc)
  51          * it should return a token or false (permission denied)
  52          * @deprecated since 1.24
  53          * @return array [ tokenname => function ]
  54          */
  55         protected function getTokenFunctions() {
  56                 // Don't call the hooks twice
  57                 if ( isset( $this->tokenFunctions ) ) {
  58                         return $this->tokenFunctions;
  59                 }
  60
  61                 // If we're in a mode that breaks the same-origin policy, no tokens can
  62                 // be obtained
  63                 if ( $this->lacksSameOriginSecurity() ) {
  64                         return [];
  65                 }
  66
  67                 $this->tokenFunctions = [
  68                         'patrol' => [ 'ApiQueryRecentChanges', 'getPatrolToken' ]
  69                 ];
  70                 Hooks::run( 'APIQueryRecentChangesTokens', [ &$this->tokenFunctions ] );
  71
  72                 return $this->tokenFunctions;
  73         }
  74
  75         /**
  76          * @deprecated since 1.24
  77          * @param int $pageid
  78          * @param Title $title
  79          * @param RecentChange|null $rc
  80          * @return bool|string
  81          */
  82         public static function getPatrolToken( $pageid, $title, $rc = null ) {
  83                 global $wgUser;
  84
  85                 $validTokenUser = false;
  86
  87                 if ( $rc ) {
  88                         if ( ( $wgUser->useRCPatrol() && $rc->getAttribute( 'rc_type' ) == RC_EDIT ) ||
  89                                 ( $wgUser->useNPPatrol() && $rc->getAttribute( 'rc_type' ) == RC_NEW )
  90                         ) {
  91                                 $validTokenUser = true;
  92                         }
  93                 } elseif ( $wgUser->useRCPatrol() || $wgUser->useNPPatrol() ) {
  94                         $validTokenUser = true;
  95                 }
  96
  97                 if ( $validTokenUser ) {
  98                         // The patrol token is always the same, let's exploit that
  99                         static $cachedPatrolToken = null;
 100
 101                         if ( is_null( $cachedPatrolToken ) ) {
 102                                 $cachedPatrolToken = $wgUser->getEditToken( 'patrol' );
 103                         }
 104
 105                         return $cachedPatrolToken;
 106                 }
 107
 108                 return false;
 109         }
 110
 111         /**
 112          * Sets internal state to include the desired properties in the output.
 113          * @param array $prop Associative array of properties, only keys are used here
 114          */
 115         public function initProperties( $prop ) {
 116                 $this->fld_comment = isset( $prop['comment'] );
 117                 $this->fld_parsedcomment = isset( $prop['parsedcomment'] );
 118                 $this->fld_user = isset( $prop['user'] );
 119                 $this->fld_userid = isset( $prop['userid'] );
 120                 $this->fld_flags = isset( $prop['flags'] );
 121                 $this->fld_timestamp = isset( $prop['timestamp'] );
 122                 $this->fld_title = isset( $prop['title'] );
 123                 $this->fld_ids = isset( $prop['ids'] );
 124                 $this->fld_sizes = isset( $prop['sizes'] );
 125                 $this->fld_redirect = isset( $prop['redirect'] );
 126                 $this->fld_patrolled = isset( $prop['patrolled'] );
 127                 $this->fld_loginfo = isset( $prop['loginfo'] );
 128                 $this->fld_tags = isset( $prop['tags'] );
 129                 $this->fld_sha1 = isset( $prop['sha1'] );
 130         }
 131
 132         public function execute() {
 133                 $this->run();
 134         }
 135
 136         public function executeGenerator( $resultPageSet ) {
 137                 $this->run( $resultPageSet );
 138         }
 139
 140         /**
 141          * Generates and outputs the result of this query based upon the provided parameters.
 142          *
 143          * @param ApiPageSet $resultPageSet
 144          */
 145         public function run( $resultPageSet = null ) {
 146                 $user = $this->getUser();
 147                 /* Get the parameters of the request. */
 148                 $params = $this->extractRequestParams();
 149
 150                 /* Build our basic query. Namely, something along the lines of:
 151                  * SELECT * FROM recentchanges WHERE rc_timestamp > $start
 152                  *   AND rc_timestamp < $end AND rc_namespace = $namespace
 153                  */
 154                 $this->addTables( 'recentchanges' );
 155                 $this->addTimestampWhereRange( 'rc_timestamp', $params['dir'], $params['start'], $params['end'] );
 156
 157                 if ( !is_null( $params['continue'] ) ) {
 158                         $cont = explode( '|', $params['continue'] );
 159                         $this->dieContinueUsageIf( count( $cont ) != 2 );
 160                         $db = $this->getDB();
 161                         $timestamp = $db->addQuotes( $db->timestamp( $cont[0] ) );
 162                         $id = intval( $cont[1] );
 163                         $this->dieContinueUsageIf( $id != $cont[1] );
 164                         $op = $params['dir'] === 'older' ? '<' : '>';
 165                         $this->addWhere(
 166                                 "rc_timestamp $op $timestamp OR " .
 167                                 "(rc_timestamp = $timestamp AND " .
 168                                 "rc_id $op= $id)"
 169                         );
 170                 }
 171
 172                 $order = $params['dir'] === 'older' ? 'DESC' : 'ASC';
 173                 $this->addOption( 'ORDER BY', [
 174                         "rc_timestamp $order",
 175                         "rc_id $order",
 176                 ] );
 177
 178                 $this->addWhereFld( 'rc_namespace', $params['namespace'] );
 179
 180                 if ( !is_null( $params['type'] ) ) {
 181                         try {
 182                                 $this->addWhereFld( 'rc_type', RecentChange::parseToRCType( $params['type'] ) );
 183                         } catch ( Exception $e ) {
 184                                 ApiBase::dieDebug( __METHOD__, $e->getMessage() );
 185                         }
 186                 }
 187
 188                 if ( !is_null( $params['show'] ) ) {
 189                         $show = array_flip( $params['show'] );
 190
 191                         /* Check for conflicting parameters. */
 192                         if ( ( isset( $show['minor'] ) && isset( $show['!minor'] ) )
 193                                 || ( isset( $show['bot'] ) && isset( $show['!bot'] ) )
 194                                 || ( isset( $show['anon'] ) && isset( $show['!anon'] ) )
 195                                 || ( isset( $show['redirect'] ) && isset( $show['!redirect'] ) )
 196                                 || ( isset( $show['patrolled'] ) && isset( $show['!patrolled'] ) )
 197                                 || ( isset( $show['patrolled'] ) && isset( $show['unpatrolled'] ) )
 198                                 || ( isset( $show['!patrolled'] ) && isset( $show['unpatrolled'] ) )
 199                         ) {
 200                                 $this->dieWithError( 'apierror-show' );
 201                         }
 202
 203                         // Check permissions
 204                         if ( isset( $show['patrolled'] )
 205                                 || isset( $show['!patrolled'] )
 206                                 || isset( $show['unpatrolled'] )
 207                         ) {
 208                                 if ( !$user->useRCPatrol() && !$user->useNPPatrol() ) {
 209                                         $this->dieWithError( 'apierror-permissiondenied-patrolflag', 'permissiondenied' );
 210                                 }
 211                         }
 212
 213                         /* Add additional conditions to query depending upon parameters. */
 214                         $this->addWhereIf( 'rc_minor = 0', isset( $show['!minor'] ) );
 215                         $this->addWhereIf( 'rc_minor != 0', isset( $show['minor'] ) );
 216                         $this->addWhereIf( 'rc_bot = 0', isset( $show['!bot'] ) );
 217                         $this->addWhereIf( 'rc_bot != 0', isset( $show['bot'] ) );
 218                         $this->addWhereIf( 'rc_user = 0', isset( $show['anon'] ) );
 219                         $this->addWhereIf( 'rc_user != 0', isset( $show['!anon'] ) );
 220                         $this->addWhereIf( 'rc_patrolled = 0', isset( $show['!patrolled'] ) );
 221                         $this->addWhereIf( 'rc_patrolled != 0', isset( $show['patrolled'] ) );
 222                         $this->addWhereIf( 'page_is_redirect = 1', isset( $show['redirect'] ) );
 223
 224                         if ( isset( $show['unpatrolled'] ) ) {
 225                                 // See ChangesList::isUnpatrolled
 226                                 if ( $user->useRCPatrol() ) {
 227                                         $this->addWhere( 'rc_patrolled = 0' );
 228                                 } elseif ( $user->useNPPatrol() ) {
 229                                         $this->addWhere( 'rc_patrolled = 0' );
 230                                         $this->addWhereFld( 'rc_type', RC_NEW );
 231                                 }
 232                         }
 233
 234                         // Don't throw log entries out the window here
 235                         $this->addWhereIf(
 236                                 'page_is_redirect = 0 OR page_is_redirect IS NULL',
 237                                 isset( $show['!redirect'] )
 238                         );
 239                 }
 240
 241                 $this->requireMaxOneParameter( $params, 'user', 'excludeuser' );
 242
 243                 if ( !is_null( $params['user'] ) ) {
 244                         $this->addWhereFld( 'rc_user_text', $params['user'] );
 245                 }
 246
 247                 if ( !is_null( $params['excludeuser'] ) ) {
 248                         // We don't use the rc_user_text index here because
 249                         // * it would require us to sort by rc_user_text before rc_timestamp
 250                         // * the != condition doesn't throw out too many rows anyway
 251                         $this->addWhere( 'rc_user_text != ' . $this->getDB()->addQuotes( $params['excludeuser'] ) );
 252                 }
 253
 254                 /* Add the fields we're concerned with to our query. */
 255                 $this->addFields( [
 256                         'rc_id',
 257                         'rc_timestamp',
 258                         'rc_namespace',
 259                         'rc_title',
 260                         'rc_cur_id',
 261                         'rc_type',
 262                         'rc_deleted'
 263                 ] );
 264
 265                 $showRedirects = false;
 266                 /* Determine what properties we need to display. */
 267                 if ( !is_null( $params['prop'] ) ) {
 268                         $prop = array_flip( $params['prop'] );
 269
 270                         /* Set up internal members based upon params. */
 271                         $this->initProperties( $prop );
 272
 273                         if ( $this->fld_patrolled && !$user->useRCPatrol() && !$user->useNPPatrol() ) {
 274                                 $this->dieWithError( 'apierror-permissiondenied-patrolflag', 'permissiondenied' );
 275                         }
 276
 277                         /* Add fields to our query if they are specified as a needed parameter. */
 278                         $this->addFieldsIf( [ 'rc_this_oldid', 'rc_last_oldid' ], $this->fld_ids );
 279                         $this->addFieldsIf( 'rc_user', $this->fld_user || $this->fld_userid );
 280                         $this->addFieldsIf( 'rc_user_text', $this->fld_user );
 281                         $this->addFieldsIf( [ 'rc_minor', 'rc_type', 'rc_bot' ], $this->fld_flags );
 282                         $this->addFieldsIf( [ 'rc_old_len', 'rc_new_len' ], $this->fld_sizes );
 283                         $this->addFieldsIf( [ 'rc_patrolled', 'rc_log_type' ], $this->fld_patrolled );
 284                         $this->addFieldsIf(
 285                                 [ 'rc_logid', 'rc_log_type', 'rc_log_action', 'rc_params' ],
 286                                 $this->fld_loginfo
 287                         );
 288                         $showRedirects = $this->fld_redirect || isset( $show['redirect'] )
 289                                 || isset( $show['!redirect'] );
 290
 291                         if ( $this->fld_comment || $this->fld_parsedcomment ) {
 292                                 $this->commentStore = new CommentStore( 'rc_comment' );
 293                                 $commentQuery = $this->commentStore->getJoin();
 294                                 $this->addTables( $commentQuery['tables'] );
 295                                 $this->addFields( $commentQuery['fields'] );
 296                                 $this->addJoinConds( $commentQuery['joins'] );
 297                         }
 298                 }
 299                 $this->addFieldsIf( [ 'rc_this_oldid' ],
 300                         $resultPageSet && $params['generaterevisions'] );
 301
 302                 if ( $this->fld_tags ) {
 303                         $this->addTables( 'tag_summary' );
 304                         $this->addJoinConds( [ 'tag_summary' => [ 'LEFT JOIN', [ 'rc_id=ts_rc_id' ] ] ] );
 305                         $this->addFields( 'ts_tags' );
 306                 }
 307
 308                 if ( $this->fld_sha1 ) {
 309                         $this->addTables( 'revision' );
 310                         $this->addJoinConds( [ 'revision' => [ 'LEFT JOIN',
 311                                 [ 'rc_this_oldid=rev_id' ] ] ] );
 312                         $this->addFields( [ 'rev_sha1', 'rev_deleted' ] );
 313                 }
 314
 315                 if ( $params['toponly'] || $showRedirects ) {
 316                         $this->addTables( 'page' );
 317                         $this->addJoinConds( [ 'page' => [ 'LEFT JOIN',
 318                                 [ 'rc_namespace=page_namespace', 'rc_title=page_title' ] ] ] );
 319                         $this->addFields( 'page_is_redirect' );
 320
 321                         if ( $params['toponly'] ) {
 322                                 $this->addWhere( 'rc_this_oldid = page_latest' );
 323                         }
 324                 }
 325
 326                 if ( !is_null( $params['tag'] ) ) {
 327                         $this->addTables( 'change_tag' );
 328                         $this->addJoinConds( [ 'change_tag' => [ 'INNER JOIN', [ 'rc_id=ct_rc_id' ] ] ] );
 329                         $this->addWhereFld( 'ct_tag', $params['tag'] );
 330                 }
 331
 332                 // Paranoia: avoid brute force searches (T19342)
 333                 if ( !is_null( $params['user'] ) || !is_null( $params['excludeuser'] ) ) {
 334                         if ( !$user->isAllowed( 'deletedhistory' ) ) {
 335                                 $bitmask = Revision::DELETED_USER;
 336                         } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
 337                                 $bitmask = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
 338                         } else {
 339                                 $bitmask = 0;
 340                         }
 341                         if ( $bitmask ) {
 342                                 $this->addWhere( $this->getDB()->bitAnd( 'rc_deleted', $bitmask ) . " != $bitmask" );
 343                         }
 344                 }
 345                 if ( $this->getRequest()->getCheck( 'namespace' ) ) {
 346                         // LogPage::DELETED_ACTION hides the affected page, too.
 347                         if ( !$user->isAllowed( 'deletedhistory' ) ) {
 348                                 $bitmask = LogPage::DELETED_ACTION;
 349                         } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
 350                                 $bitmask = LogPage::DELETED_ACTION | LogPage::DELETED_RESTRICTED;
 351                         } else {
 352                                 $bitmask = 0;
 353                         }
 354                         if ( $bitmask ) {
 355                                 $this->addWhere( $this->getDB()->makeList( [
 356                                         'rc_type != ' . RC_LOG,
 357                                         $this->getDB()->bitAnd( 'rc_deleted', $bitmask ) . " != $bitmask",
 358                                 ], LIST_OR ) );
 359                         }
 360                 }
 361
 362                 $this->token = $params['token'];
 363                 $this->addOption( 'LIMIT', $params['limit'] + 1 );
 364
 365                 $hookData = [];
 366                 $count = 0;
 367                 /* Perform the actual query. */
 368                 $res = $this->select( __METHOD__, [], $hookData );
 369
 370                 $revids = [];
 371                 $titles = [];
 372
 373                 $result = $this->getResult();
 374
 375                 /* Iterate through the rows, adding data extracted from them to our query result. */
 376                 foreach ( $res as $row ) {
 377                         if ( $count === 0 && $resultPageSet !== null ) {
 378                                 // Set the non-continue since the list of recentchanges is
 379                                 // prone to having entries added at the start frequently.
 380                                 $this->getContinuationManager()->addGeneratorNonContinueParam(
 381                                         $this, 'continue', "$row->rc_timestamp|$row->rc_id"
 382                                 );
 383                         }
 384                         if ( ++$count > $params['limit'] ) {
 385                                 // We've reached the one extra which shows that there are
 386                                 // additional pages to be had. Stop here...
 387                                 $this->setContinueEnumParameter( 'continue', "$row->rc_timestamp|$row->rc_id" );
 388                                 break;
 389                         }
 390
 391                         if ( is_null( $resultPageSet ) ) {
 392                                 /* Extract the data from a single row. */
 393                                 $vals = $this->extractRowInfo( $row );
 394
 395                                 /* Add that row's data to our final output. */
 396                                 $fit = $this->processRow( $row, $vals, $hookData ) &&
 397                                         $result->addValue( [ 'query', $this->getModuleName() ], null, $vals );
 398                                 if ( !$fit ) {
 399                                         $this->setContinueEnumParameter( 'continue', "$row->rc_timestamp|$row->rc_id" );
 400                                         break;
 401                                 }
 402                         } elseif ( $params['generaterevisions'] ) {
 403                                 $revid = (int)$row->rc_this_oldid;
 404                                 if ( $revid > 0 ) {
 405                                         $revids[] = $revid;
 406                                 }
 407                         } else {
 408                                 $titles[] = Title::makeTitle( $row->rc_namespace, $row->rc_title );
 409                         }
 410                 }
 411
 412                 if ( is_null( $resultPageSet ) ) {
 413                         /* Format the result */
 414                         $result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'rc' );
 415                 } elseif ( $params['generaterevisions'] ) {
 416                         $resultPageSet->populateFromRevisionIDs( $revids );
 417                 } else {
 418                         $resultPageSet->populateFromTitles( $titles );
 419                 }
 420         }
 421
 422         /**
 423          * Extracts from a single sql row the data needed to describe one recent change.
 424          *
 425          * @param stdClass $row The row from which to extract the data.
 426          * @return array An array mapping strings (descriptors) to their respective string values.
 427          * @access public
 428          */
 429         public function extractRowInfo( $row ) {
 430                 /* Determine the title of the page that has been changed. */
 431                 $title = Title::makeTitle( $row->rc_namespace, $row->rc_title );
 432                 $user = $this->getUser();
 433
 434                 /* Our output data. */
 435                 $vals = [];
 436
 437                 $type = intval( $row->rc_type );
 438                 $vals['type'] = RecentChange::parseFromRCType( $type );
 439
 440                 $anyHidden = false;
 441
 442                 /* Create a new entry in the result for the title. */
 443                 if ( $this->fld_title || $this->fld_ids ) {
 444                         if ( $type === RC_LOG && ( $row->rc_deleted & LogPage::DELETED_ACTION ) ) {
 445                                 $vals['actionhidden'] = true;
 446                                 $anyHidden = true;
 447                         }
 448                         if ( $type !== RC_LOG ||
 449                                 LogEventsList::userCanBitfield( $row->rc_deleted, LogPage::DELETED_ACTION, $user )
 450                         ) {
 451                                 if ( $this->fld_title ) {
 452                                         ApiQueryBase::addTitleInfo( $vals, $title );
 453                                 }
 454                                 if ( $this->fld_ids ) {
 455                                         $vals['pageid'] = intval( $row->rc_cur_id );
 456                                         $vals['revid'] = intval( $row->rc_this_oldid );
 457                                         $vals['old_revid'] = intval( $row->rc_last_oldid );
 458                                 }
 459                         }
 460                 }
 461
 462                 if ( $this->fld_ids ) {
 463                         $vals['rcid'] = intval( $row->rc_id );
 464                 }
 465
 466                 /* Add user data and 'anon' flag, if user is anonymous. */
 467                 if ( $this->fld_user || $this->fld_userid ) {
 468                         if ( $row->rc_deleted & Revision::DELETED_USER ) {
 469                                 $vals['userhidden'] = true;
 470                                 $anyHidden = true;
 471                         }
 472                         if ( Revision::userCanBitfield( $row->rc_deleted, Revision::DELETED_USER, $user ) ) {
 473                                 if ( $this->fld_user ) {
 474                                         $vals['user'] = $row->rc_user_text;
 475                                 }
 476
 477                                 if ( $this->fld_userid ) {
 478                                         $vals['userid'] = (int)$row->rc_user;
 479                                 }
 480
 481                                 if ( !$row->rc_user ) {
 482                                         $vals['anon'] = true;
 483                                 }
 484                         }
 485                 }
 486
 487                 /* Add flags, such as new, minor, bot. */
 488                 if ( $this->fld_flags ) {
 489                         $vals['bot'] = (bool)$row->rc_bot;
 490                         $vals['new'] = $row->rc_type == RC_NEW;
 491                         $vals['minor'] = (bool)$row->rc_minor;
 492                 }
 493
 494                 /* Add sizes of each revision. (Only available on 1.10+) */
 495                 if ( $this->fld_sizes ) {
 496                         $vals['oldlen'] = intval( $row->rc_old_len );
 497                         $vals['newlen'] = intval( $row->rc_new_len );
 498                 }
 499
 500                 /* Add the timestamp. */
 501                 if ( $this->fld_timestamp ) {
 502                         $vals['timestamp'] = wfTimestamp( TS_ISO_8601, $row->rc_timestamp );
 503                 }
 504
 505                 /* Add edit summary / log summary. */
 506                 if ( $this->fld_comment || $this->fld_parsedcomment ) {
 507                         if ( $row->rc_deleted & Revision::DELETED_COMMENT ) {
 508                                 $vals['commenthidden'] = true;
 509                                 $anyHidden = true;
 510                         }
 511                         if ( Revision::userCanBitfield( $row->rc_deleted, Revision::DELETED_COMMENT, $user ) ) {
 512                                 $comment = $this->commentStore->getComment( $row )->text;
 513                                 if ( $this->fld_comment ) {
 514                                         $vals['comment'] = $comment;
 515                                 }
 516
 517                                 if ( $this->fld_parsedcomment ) {
 518                                         $vals['parsedcomment'] = Linker::formatComment( $comment, $title );
 519                                 }
 520                         }
 521                 }
 522
 523                 if ( $this->fld_redirect ) {
 524                         $vals['redirect'] = (bool)$row->page_is_redirect;
 525                 }
 526
 527                 /* Add the patrolled flag */
 528                 if ( $this->fld_patrolled ) {
 529                         $vals['patrolled'] = $row->rc_patrolled == 1;
 530                         $vals['unpatrolled'] = ChangesList::isUnpatrolled( $row, $user );
 531                 }
 532
 533                 if ( $this->fld_loginfo && $row->rc_type == RC_LOG ) {
 534                         if ( $row->rc_deleted & LogPage::DELETED_ACTION ) {
 535                                 $vals['actionhidden'] = true;
 536                                 $anyHidden = true;
 537                         }
 538                         if ( LogEventsList::userCanBitfield( $row->rc_deleted, LogPage::DELETED_ACTION, $user ) ) {
 539                                 $vals['logid'] = intval( $row->rc_logid );
 540                                 $vals['logtype'] = $row->rc_log_type;
 541                                 $vals['logaction'] = $row->rc_log_action;
 542                                 $vals['logparams'] = LogFormatter::newFromRow( $row )->formatParametersForApi();
 543                         }
 544                 }
 545
 546                 if ( $this->fld_tags ) {
 547                         if ( $row->ts_tags ) {
 548                                 $tags = explode( ',', $row->ts_tags );
 549                                 ApiResult::setIndexedTagName( $tags, 'tag' );
 550                                 $vals['tags'] = $tags;
 551                         } else {
 552                                 $vals['tags'] = [];
 553                         }
 554                 }
 555
 556                 if ( $this->fld_sha1 && $row->rev_sha1 !== null ) {
 557                         if ( $row->rev_deleted & Revision::DELETED_TEXT ) {
 558                                 $vals['sha1hidden'] = true;
 559                                 $anyHidden = true;
 560                         }
 561                         if ( Revision::userCanBitfield( $row->rev_deleted, Revision::DELETED_TEXT, $user ) ) {
 562                                 if ( $row->rev_sha1 !== '' ) {
 563                                         $vals['sha1'] = Wikimedia\base_convert( $row->rev_sha1, 36, 16, 40 );
 564                                 } else {
 565                                         $vals['sha1'] = '';
 566                                 }
 567                         }
 568                 }
 569
 570                 if ( !is_null( $this->token ) ) {
 571                         $tokenFunctions = $this->getTokenFunctions();
 572                         foreach ( $this->token as $t ) {
 573                                 $val = call_user_func( $tokenFunctions[$t], $row->rc_cur_id,
 574                                         $title, RecentChange::newFromRow( $row ) );
 575                                 if ( $val === false ) {
 576                                         $this->addWarning( [ 'apiwarn-tokennotallowed', $t ] );
 577                                 } else {
 578                                         $vals[$t . 'token'] = $val;
 579                                 }
 580                         }
 581                 }
 582
 583                 if ( $anyHidden && ( $row->rc_deleted & Revision::DELETED_RESTRICTED ) ) {
 584                         $vals['suppressed'] = true;
 585                 }
 586
 587                 return $vals;
 588         }
 589
 590         public function getCacheMode( $params ) {
 591                 if ( isset( $params['show'] ) ) {
 592                         foreach ( $params['show'] as $show ) {
 593                                 if ( $show === 'patrolled' || $show === '!patrolled' ) {
 594                                         return 'private';
 595                                 }
 596                         }
 597                 }
 598                 if ( isset( $params['token'] ) ) {
 599                         return 'private';
 600                 }
 601                 if ( $this->userCanSeeRevDel() ) {
 602                         return 'private';
 603                 }
 604                 if ( !is_null( $params['prop'] ) && in_array( 'parsedcomment', $params['prop'] ) ) {
 605                         // formatComment() calls wfMessage() among other things
 606                         return 'anon-public-user-private';
 607                 }
 608
 609                 return 'public';
 610         }
 611
 612         public function getAllowedParams() {
 613                 return [
 614                         'start' => [
 615                                 ApiBase::PARAM_TYPE => 'timestamp'
 616                         ],
 617                         'end' => [
 618                                 ApiBase::PARAM_TYPE => 'timestamp'
 619                         ],
 620                         'dir' => [
 621                                 ApiBase::PARAM_DFLT => 'older',
 622                                 ApiBase::PARAM_TYPE => [
 623                                         'newer',
 624                                         'older'
 625                                 ],
 626                                 ApiBase::PARAM_HELP_MSG => 'api-help-param-direction',
 627                         ],
 628                         'namespace' => [
 629                                 ApiBase::PARAM_ISMULTI => true,
 630                                 ApiBase::PARAM_TYPE => 'namespace',
 631                                 ApiBase::PARAM_EXTRA_NAMESPACES => [ NS_MEDIA, NS_SPECIAL ],
 632                         ],
 633                         'user' => [
 634                                 ApiBase::PARAM_TYPE => 'user'
 635                         ],
 636                         'excludeuser' => [
 637                                 ApiBase::PARAM_TYPE => 'user'
 638                         ],
 639                         'tag' => null,
 640                         'prop' => [
 641                                 ApiBase::PARAM_ISMULTI => true,
 642                                 ApiBase::PARAM_DFLT => 'title|timestamp|ids',
 643                                 ApiBase::PARAM_TYPE => [
 644                                         'user',
 645                                         'userid',
 646                                         'comment',
 647                                         'parsedcomment',
 648                                         'flags',
 649                                         'timestamp',
 650                                         'title',
 651                                         'ids',
 652                                         'sizes',
 653                                         'redirect',
 654                                         'patrolled',
 655                                         'loginfo',
 656                                         'tags',
 657                                         'sha1',
 658                                 ],
 659                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
 660                         ],
 661                         'token' => [
 662                                 ApiBase::PARAM_DEPRECATED => true,
 663                                 ApiBase::PARAM_TYPE => array_keys( $this->getTokenFunctions() ),
 664                                 ApiBase::PARAM_ISMULTI => true
 665                         ],
 666                         'show' => [
 667                                 ApiBase::PARAM_ISMULTI => true,
 668                                 ApiBase::PARAM_TYPE => [
 669                                         'minor',
 670                                         '!minor',
 671                                         'bot',
 672                                         '!bot',
 673                                         'anon',
 674                                         '!anon',
 675                                         'redirect',
 676                                         '!redirect',
 677                                         'patrolled',
 678                                         '!patrolled',
 679                                         'unpatrolled'
 680                                 ]
 681                         ],
 682                         'limit' => [
 683                                 ApiBase::PARAM_DFLT => 10,
 684                                 ApiBase::PARAM_TYPE => 'limit',
 685                                 ApiBase::PARAM_MIN => 1,
 686                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 687                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 688                         ],
 689                         'type' => [
 690                                 ApiBase::PARAM_DFLT => 'edit|new|log|categorize',
 691                                 ApiBase::PARAM_ISMULTI => true,
 692                                 ApiBase::PARAM_TYPE => RecentChange::getChangeTypes()
 693                         ],
 694                         'toponly' => false,
 695                         'continue' => [
 696                                 ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
 697                         ],
 698                         'generaterevisions' => false,
 699                 ];
 700         }
 701
 702         protected function getExamplesMessages() {
 703                 return [
 704                         'action=query&list=recentchanges'
 705                                 => 'apihelp-query+recentchanges-example-simple',
 706                         'action=query&generator=recentchanges&grcshow=!patrolled&prop=info'
 707                                 => 'apihelp-query+recentchanges-example-generator',
 708                 ];
 709         }
 710
 711         public function getHelpUrls() {
 712                 return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Recentchanges';
 713         }
 714 }