includes/api/ApiQueryWatchlist.php

   1 <?php
   2 /**
   3  * Copyright © 2006 Yuri Astrakhan "<Firstname><Lastname>@gmail.com"
   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 use MediaWiki\MediaWikiServices;
  24
  25 /**
  26  * This query action allows clients to retrieve a list of recently modified pages
  27  * that are part of the logged-in user's watchlist.
  28  *
  29  * @ingroup API
  30  */
  31 class ApiQueryWatchlist extends ApiQueryGeneratorBase {
  32
  33         /** @var CommentStore */
  34         private $commentStore;
  35
  36         public function __construct( ApiQuery $query, $moduleName ) {
  37                 parent::__construct( $query, $moduleName, 'wl' );
  38         }
  39
  40         public function execute() {
  41                 $this->run();
  42         }
  43
  44         public function executeGenerator( $resultPageSet ) {
  45                 $this->run( $resultPageSet );
  46         }
  47
  48         private $fld_ids = false, $fld_title = false, $fld_patrol = false,
  49                 $fld_flags = false, $fld_timestamp = false, $fld_user = false,
  50                 $fld_comment = false, $fld_parsedcomment = false, $fld_sizes = false,
  51                 $fld_notificationtimestamp = false, $fld_userid = false,
  52                 $fld_loginfo = false, $fld_tags;
  53
  54         /**
  55          * @param ApiPageSet $resultPageSet
  56          * @return void
  57          */
  58         private function run( $resultPageSet = null ) {
  59                 $this->selectNamedDB( 'watchlist', DB_REPLICA, 'watchlist' );
  60
  61                 $params = $this->extractRequestParams();
  62
  63                 $user = $this->getUser();
  64                 $wlowner = $this->getWatchlistUser( $params );
  65
  66                 if ( !is_null( $params['prop'] ) && is_null( $resultPageSet ) ) {
  67                         $prop = array_flip( $params['prop'] );
  68
  69                         $this->fld_ids = isset( $prop['ids'] );
  70                         $this->fld_title = isset( $prop['title'] );
  71                         $this->fld_flags = isset( $prop['flags'] );
  72                         $this->fld_user = isset( $prop['user'] );
  73                         $this->fld_userid = isset( $prop['userid'] );
  74                         $this->fld_comment = isset( $prop['comment'] );
  75                         $this->fld_parsedcomment = isset( $prop['parsedcomment'] );
  76                         $this->fld_timestamp = isset( $prop['timestamp'] );
  77                         $this->fld_sizes = isset( $prop['sizes'] );
  78                         $this->fld_patrol = isset( $prop['patrol'] );
  79                         $this->fld_notificationtimestamp = isset( $prop['notificationtimestamp'] );
  80                         $this->fld_loginfo = isset( $prop['loginfo'] );
  81                         $this->fld_tags = isset( $prop['tags'] );
  82
  83                         if ( $this->fld_patrol ) {
  84                                 if ( !$user->useRCPatrol() && !$user->useNPPatrol() ) {
  85                                         $this->dieWithError( 'apierror-permissiondenied-patrolflag', 'patrol' );
  86                                 }
  87                         }
  88
  89                         if ( $this->fld_comment || $this->fld_parsedcomment ) {
  90                                 $this->commentStore = CommentStore::getStore();
  91                         }
  92                 }
  93
  94                 $options = [
  95                         'dir' => $params['dir'] === 'older'
  96                                 ? WatchedItemQueryService::DIR_OLDER
  97                                 : WatchedItemQueryService::DIR_NEWER,
  98                 ];
  99
 100                 if ( is_null( $resultPageSet ) ) {
 101                         $options['includeFields'] = $this->getFieldsToInclude();
 102                 } else {
 103                         $options['usedInGenerator'] = true;
 104                 }
 105
 106                 if ( $params['start'] ) {
 107                         $options['start'] = $params['start'];
 108                 }
 109                 if ( $params['end'] ) {
 110                         $options['end'] = $params['end'];
 111                 }
 112
 113                 $startFrom = null;
 114                 if ( !is_null( $params['continue'] ) ) {
 115                         $cont = explode( '|', $params['continue'] );
 116                         $this->dieContinueUsageIf( count( $cont ) != 2 );
 117                         $continueTimestamp = $cont[0];
 118                         $continueId = (int)$cont[1];
 119                         $this->dieContinueUsageIf( $continueId != $cont[1] );
 120                         $startFrom = [ $continueTimestamp, $continueId ];
 121                 }
 122
 123                 if ( $wlowner !== $user ) {
 124                         $options['watchlistOwner'] = $wlowner;
 125                         $options['watchlistOwnerToken'] = $params['token'];
 126                 }
 127
 128                 if ( !is_null( $params['namespace'] ) ) {
 129                         $options['namespaceIds'] = $params['namespace'];
 130                 }
 131
 132                 if ( $params['allrev'] ) {
 133                         $options['allRevisions'] = true;
 134                 }
 135
 136                 if ( !is_null( $params['show'] ) ) {
 137                         $show = array_flip( $params['show'] );
 138
 139                         /* Check for conflicting parameters. */
 140                         if ( $this->showParamsConflicting( $show ) ) {
 141                                 $this->dieWithError( 'apierror-show' );
 142                         }
 143
 144                         // Check permissions.
 145                         if ( isset( $show[WatchedItemQueryService::FILTER_PATROLLED] )
 146                                 || isset( $show[WatchedItemQueryService::FILTER_NOT_PATROLLED] )
 147                         ) {
 148                                 if ( !$user->useRCPatrol() && !$user->useNPPatrol() ) {
 149                                         $this->dieWithError( 'apierror-permissiondenied-patrolflag', 'permissiondenied' );
 150                                 }
 151                         }
 152
 153                         $options['filters'] = array_keys( $show );
 154                 }
 155
 156                 if ( !is_null( $params['type'] ) ) {
 157                         try {
 158                                 $rcTypes = RecentChange::parseToRCType( $params['type'] );
 159                                 if ( $rcTypes ) {
 160                                         $options['rcTypes'] = $rcTypes;
 161                                 }
 162                         } catch ( Exception $e ) {
 163                                 ApiBase::dieDebug( __METHOD__, $e->getMessage() );
 164                         }
 165                 }
 166
 167                 $this->requireMaxOneParameter( $params, 'user', 'excludeuser' );
 168                 if ( !is_null( $params['user'] ) ) {
 169                         $options['onlyByUser'] = $params['user'];
 170                 }
 171                 if ( !is_null( $params['excludeuser'] ) ) {
 172                         $options['notByUser'] = $params['excludeuser'];
 173                 }
 174
 175                 $options['limit'] = $params['limit'];
 176
 177                 Hooks::run( 'ApiQueryWatchlistPrepareWatchedItemQueryServiceOptions', [
 178                         $this, $params, &$options
 179                 ] );
 180
 181                 $ids = [];
 182                 $count = 0;
 183                 $watchedItemQuery = MediaWikiServices::getInstance()->getWatchedItemQueryService();
 184                 $items = $watchedItemQuery->getWatchedItemsWithRecentChangeInfo( $wlowner, $options, $startFrom );
 185
 186                 foreach ( $items as list( $watchedItem, $recentChangeInfo ) ) {
 187                         /** @var WatchedItem $watchedItem */
 188                         if ( is_null( $resultPageSet ) ) {
 189                                 $vals = $this->extractOutputData( $watchedItem, $recentChangeInfo );
 190                                 $fit = $this->getResult()->addValue( [ 'query', $this->getModuleName() ], null, $vals );
 191                                 if ( !$fit ) {
 192                                         $startFrom = [ $recentChangeInfo['rc_timestamp'], $recentChangeInfo['rc_id'] ];
 193                                         break;
 194                                 }
 195                         } else {
 196                                 if ( $params['allrev'] ) {
 197                                         $ids[] = intval( $recentChangeInfo['rc_this_oldid'] );
 198                                 } else {
 199                                         $ids[] = intval( $recentChangeInfo['rc_cur_id'] );
 200                                 }
 201                         }
 202                 }
 203
 204                 if ( $startFrom !== null ) {
 205                         $this->setContinueEnumParameter( 'continue', implode( '|', $startFrom ) );
 206                 }
 207
 208                 if ( is_null( $resultPageSet ) ) {
 209                         $this->getResult()->addIndexedTagName(
 210                                 [ 'query', $this->getModuleName() ],
 211                                 'item'
 212                         );
 213                 } elseif ( $params['allrev'] ) {
 214                         $resultPageSet->populateFromRevisionIDs( $ids );
 215                 } else {
 216                         $resultPageSet->populateFromPageIDs( $ids );
 217                 }
 218         }
 219
 220         private function getFieldsToInclude() {
 221                 $includeFields = [];
 222                 if ( $this->fld_flags ) {
 223                         $includeFields[] = WatchedItemQueryService::INCLUDE_FLAGS;
 224                 }
 225                 if ( $this->fld_user || $this->fld_userid ) {
 226                         $includeFields[] = WatchedItemQueryService::INCLUDE_USER_ID;
 227                 }
 228                 if ( $this->fld_user ) {
 229                         $includeFields[] = WatchedItemQueryService::INCLUDE_USER;
 230                 }
 231                 if ( $this->fld_comment || $this->fld_parsedcomment ) {
 232                         $includeFields[] = WatchedItemQueryService::INCLUDE_COMMENT;
 233                 }
 234                 if ( $this->fld_patrol ) {
 235                         $includeFields[] = WatchedItemQueryService::INCLUDE_PATROL_INFO;
 236                 }
 237                 if ( $this->fld_sizes ) {
 238                         $includeFields[] = WatchedItemQueryService::INCLUDE_SIZES;
 239                 }
 240                 if ( $this->fld_loginfo ) {
 241                         $includeFields[] = WatchedItemQueryService::INCLUDE_LOG_INFO;
 242                 }
 243                 if ( $this->fld_tags ) {
 244                         $includeFields[] = WatchedItemQueryService::INCLUDE_TAGS;
 245                 }
 246                 return $includeFields;
 247         }
 248
 249         private function showParamsConflicting( array $show ) {
 250                 return ( isset( $show[WatchedItemQueryService::FILTER_MINOR] )
 251                         && isset( $show[WatchedItemQueryService::FILTER_NOT_MINOR] ) )
 252                 || ( isset( $show[WatchedItemQueryService::FILTER_BOT] )
 253                         && isset( $show[WatchedItemQueryService::FILTER_NOT_BOT] ) )
 254                 || ( isset( $show[WatchedItemQueryService::FILTER_ANON] )
 255                         && isset( $show[WatchedItemQueryService::FILTER_NOT_ANON] ) )
 256                 || ( isset( $show[WatchedItemQueryService::FILTER_PATROLLED] )
 257                         && isset( $show[WatchedItemQueryService::FILTER_NOT_PATROLLED] ) )
 258                 || ( isset( $show[WatchedItemQueryService::FILTER_UNREAD] )
 259                         && isset( $show[WatchedItemQueryService::FILTER_NOT_UNREAD] ) );
 260         }
 261
 262         private function extractOutputData( WatchedItem $watchedItem, array $recentChangeInfo ) {
 263                 /* Determine the title of the page that has been changed. */
 264                 $title = Title::newFromLinkTarget( $watchedItem->getLinkTarget() );
 265                 $user = $this->getUser();
 266
 267                 /* Our output data. */
 268                 $vals = [];
 269                 $type = intval( $recentChangeInfo['rc_type'] );
 270                 $vals['type'] = RecentChange::parseFromRCType( $type );
 271                 $anyHidden = false;
 272
 273                 /* Create a new entry in the result for the title. */
 274                 if ( $this->fld_title || $this->fld_ids ) {
 275                         // These should already have been filtered out of the query, but just in case.
 276                         if ( $type === RC_LOG && ( $recentChangeInfo['rc_deleted'] & LogPage::DELETED_ACTION ) ) {
 277                                 $vals['actionhidden'] = true;
 278                                 $anyHidden = true;
 279                         }
 280                         if ( $type !== RC_LOG ||
 281                                 LogEventsList::userCanBitfield(
 282                                         $recentChangeInfo['rc_deleted'],
 283                                         LogPage::DELETED_ACTION,
 284                                         $user
 285                                 )
 286                         ) {
 287                                 if ( $this->fld_title ) {
 288                                         ApiQueryBase::addTitleInfo( $vals, $title );
 289                                 }
 290                                 if ( $this->fld_ids ) {
 291                                         $vals['pageid'] = intval( $recentChangeInfo['rc_cur_id'] );
 292                                         $vals['revid'] = intval( $recentChangeInfo['rc_this_oldid'] );
 293                                         $vals['old_revid'] = intval( $recentChangeInfo['rc_last_oldid'] );
 294                                 }
 295                         }
 296                 }
 297
 298                 /* Add user data and 'anon' flag, if user is anonymous. */
 299                 if ( $this->fld_user || $this->fld_userid ) {
 300                         if ( $recentChangeInfo['rc_deleted'] & Revision::DELETED_USER ) {
 301                                 $vals['userhidden'] = true;
 302                                 $anyHidden = true;
 303                         }
 304                         if ( Revision::userCanBitfield(
 305                                 $recentChangeInfo['rc_deleted'],
 306                                 Revision::DELETED_USER,
 307                                 $user
 308                         ) ) {
 309                                 if ( $this->fld_userid ) {
 310                                         $vals['userid'] = (int)$recentChangeInfo['rc_user'];
 311                                         // for backwards compatibility
 312                                         $vals['user'] = (int)$recentChangeInfo['rc_user'];
 313                                 }
 314
 315                                 if ( $this->fld_user ) {
 316                                         $vals['user'] = $recentChangeInfo['rc_user_text'];
 317                                 }
 318
 319                                 if ( !$recentChangeInfo['rc_user'] ) {
 320                                         $vals['anon'] = true;
 321                                 }
 322                         }
 323                 }
 324
 325                 /* Add flags, such as new, minor, bot. */
 326                 if ( $this->fld_flags ) {
 327                         $vals['bot'] = (bool)$recentChangeInfo['rc_bot'];
 328                         $vals['new'] = $recentChangeInfo['rc_type'] == RC_NEW;
 329                         $vals['minor'] = (bool)$recentChangeInfo['rc_minor'];
 330                 }
 331
 332                 /* Add sizes of each revision. (Only available on 1.10+) */
 333                 if ( $this->fld_sizes ) {
 334                         $vals['oldlen'] = intval( $recentChangeInfo['rc_old_len'] );
 335                         $vals['newlen'] = intval( $recentChangeInfo['rc_new_len'] );
 336                 }
 337
 338                 /* Add the timestamp. */
 339                 if ( $this->fld_timestamp ) {
 340                         $vals['timestamp'] = wfTimestamp( TS_ISO_8601, $recentChangeInfo['rc_timestamp'] );
 341                 }
 342
 343                 if ( $this->fld_notificationtimestamp ) {
 344                         $vals['notificationtimestamp'] = ( $watchedItem->getNotificationTimestamp() == null )
 345                                 ? ''
 346                                 : wfTimestamp( TS_ISO_8601, $watchedItem->getNotificationTimestamp() );
 347                 }
 348
 349                 /* Add edit summary / log summary. */
 350                 if ( $this->fld_comment || $this->fld_parsedcomment ) {
 351                         if ( $recentChangeInfo['rc_deleted'] & Revision::DELETED_COMMENT ) {
 352                                 $vals['commenthidden'] = true;
 353                                 $anyHidden = true;
 354                         }
 355                         if ( Revision::userCanBitfield(
 356                                 $recentChangeInfo['rc_deleted'],
 357                                 Revision::DELETED_COMMENT,
 358                                 $user
 359                         ) ) {
 360                                 $comment = $this->commentStore->getComment( 'rc_comment', $recentChangeInfo )->text;
 361                                 if ( $this->fld_comment ) {
 362                                         $vals['comment'] = $comment;
 363                                 }
 364
 365                                 if ( $this->fld_parsedcomment ) {
 366                                         $vals['parsedcomment'] = Linker::formatComment( $comment, $title );
 367                                 }
 368                         }
 369                 }
 370
 371                 /* Add the patrolled flag */
 372                 if ( $this->fld_patrol ) {
 373                         $vals['patrolled'] = $recentChangeInfo['rc_patrolled'] == 1;
 374                         $vals['unpatrolled'] = ChangesList::isUnpatrolled( (object)$recentChangeInfo, $user );
 375                 }
 376
 377                 if ( $this->fld_loginfo && $recentChangeInfo['rc_type'] == RC_LOG ) {
 378                         if ( $recentChangeInfo['rc_deleted'] & LogPage::DELETED_ACTION ) {
 379                                 $vals['actionhidden'] = true;
 380                                 $anyHidden = true;
 381                         }
 382                         if ( LogEventsList::userCanBitfield(
 383                                 $recentChangeInfo['rc_deleted'],
 384                                 LogPage::DELETED_ACTION,
 385                                 $user
 386                         ) ) {
 387                                 $vals['logid'] = intval( $recentChangeInfo['rc_logid'] );
 388                                 $vals['logtype'] = $recentChangeInfo['rc_log_type'];
 389                                 $vals['logaction'] = $recentChangeInfo['rc_log_action'];
 390                                 $vals['logparams'] = LogFormatter::newFromRow( $recentChangeInfo )->formatParametersForApi();
 391                         }
 392                 }
 393
 394                 if ( $this->fld_tags ) {
 395                         if ( $recentChangeInfo['rc_tags'] ) {
 396                                 $tags = explode( ',', $recentChangeInfo['rc_tags'] );
 397                                 ApiResult::setIndexedTagName( $tags, 'tag' );
 398                                 $vals['tags'] = $tags;
 399                         } else {
 400                                 $vals['tags'] = [];
 401                         }
 402                 }
 403
 404                 if ( $anyHidden && ( $recentChangeInfo['rc_deleted'] & Revision::DELETED_RESTRICTED ) ) {
 405                         $vals['suppressed'] = true;
 406                 }
 407
 408                 Hooks::run( 'ApiQueryWatchlistExtractOutputData', [
 409                         $this, $watchedItem, $recentChangeInfo, &$vals
 410                 ] );
 411
 412                 return $vals;
 413         }
 414
 415         public function getAllowedParams() {
 416                 return [
 417                         'allrev' => false,
 418                         'start' => [
 419                                 ApiBase::PARAM_TYPE => 'timestamp'
 420                         ],
 421                         'end' => [
 422                                 ApiBase::PARAM_TYPE => 'timestamp'
 423                         ],
 424                         'namespace' => [
 425                                 ApiBase::PARAM_ISMULTI => true,
 426                                 ApiBase::PARAM_TYPE => 'namespace'
 427                         ],
 428                         'user' => [
 429                                 ApiBase::PARAM_TYPE => 'user',
 430                         ],
 431                         'excludeuser' => [
 432                                 ApiBase::PARAM_TYPE => 'user',
 433                         ],
 434                         'dir' => [
 435                                 ApiBase::PARAM_DFLT => 'older',
 436                                 ApiBase::PARAM_TYPE => [
 437                                         'newer',
 438                                         'older'
 439                                 ],
 440                                 ApiHelp::PARAM_HELP_MSG => 'api-help-param-direction',
 441                         ],
 442                         'limit' => [
 443                                 ApiBase::PARAM_DFLT => 10,
 444                                 ApiBase::PARAM_TYPE => 'limit',
 445                                 ApiBase::PARAM_MIN => 1,
 446                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 447                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 448                         ],
 449                         'prop' => [
 450                                 ApiBase::PARAM_ISMULTI => true,
 451                                 ApiBase::PARAM_DFLT => 'ids|title|flags',
 452                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
 453                                 ApiBase::PARAM_TYPE => [
 454                                         'ids',
 455                                         'title',
 456                                         'flags',
 457                                         'user',
 458                                         'userid',
 459                                         'comment',
 460                                         'parsedcomment',
 461                                         'timestamp',
 462                                         'patrol',
 463                                         'sizes',
 464                                         'notificationtimestamp',
 465                                         'loginfo',
 466                                         'tags',
 467                                 ]
 468                         ],
 469                         'show' => [
 470                                 ApiBase::PARAM_ISMULTI => true,
 471                                 ApiBase::PARAM_TYPE => [
 472                                         WatchedItemQueryService::FILTER_MINOR,
 473                                         WatchedItemQueryService::FILTER_NOT_MINOR,
 474                                         WatchedItemQueryService::FILTER_BOT,
 475                                         WatchedItemQueryService::FILTER_NOT_BOT,
 476                                         WatchedItemQueryService::FILTER_ANON,
 477                                         WatchedItemQueryService::FILTER_NOT_ANON,
 478                                         WatchedItemQueryService::FILTER_PATROLLED,
 479                                         WatchedItemQueryService::FILTER_NOT_PATROLLED,
 480                                         WatchedItemQueryService::FILTER_UNREAD,
 481                                         WatchedItemQueryService::FILTER_NOT_UNREAD,
 482                                 ]
 483                         ],
 484                         'type' => [
 485                                 ApiBase::PARAM_DFLT => 'edit|new|log|categorize',
 486                                 ApiBase::PARAM_ISMULTI => true,
 487                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
 488                                 ApiBase::PARAM_TYPE => RecentChange::getChangeTypes()
 489                         ],
 490                         'owner' => [
 491                                 ApiBase::PARAM_TYPE => 'user'
 492                         ],
 493                         'token' => [
 494                                 ApiBase::PARAM_TYPE => 'string',
 495                                 ApiBase::PARAM_SENSITIVE => true,
 496                         ],
 497                         'continue' => [
 498                                 ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
 499                         ],
 500                 ];
 501         }
 502
 503         protected function getExamplesMessages() {
 504                 return [
 505                         'action=query&list=watchlist'
 506                                 => 'apihelp-query+watchlist-example-simple',
 507                         'action=query&list=watchlist&wlprop=ids|title|timestamp|user|comment'
 508                                 => 'apihelp-query+watchlist-example-props',
 509                         'action=query&list=watchlist&wlallrev=&wlprop=ids|title|timestamp|user|comment'
 510                                 => 'apihelp-query+watchlist-example-allrev',
 511                         'action=query&generator=watchlist&prop=info'
 512                                 => 'apihelp-query+watchlist-example-generator',
 513                         'action=query&generator=watchlist&gwlallrev=&prop=revisions&rvprop=timestamp|user'
 514                                 => 'apihelp-query+watchlist-example-generator-rev',
 515                         'action=query&list=watchlist&wlowner=Example&wltoken=123ABC'
 516                                 => 'apihelp-query+watchlist-example-wlowner',
 517                 ];
 518         }
 519
 520         public function getHelpUrls() {
 521                 return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Watchlist';
 522         }
 523 }