includes/api/ApiQueryWatchlist.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on Sep 25, 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 use MediaWiki\MediaWikiServices;
  28
  29 /**
  30  * This query action allows clients to retrieve a list of recently modified pages
  31  * that are part of the logged-in user's watchlist.
  32  *
  33  * @ingroup API
  34  */
  35 class ApiQueryWatchlist extends ApiQueryGeneratorBase {
  36
  37         private $commentStore;
  38
  39         public function __construct( ApiQuery $query, $moduleName ) {
  40                 parent::__construct( $query, $moduleName, 'wl' );
  41         }
  42
  43         public function execute() {
  44                 $this->run();
  45         }
  46
  47         public function executeGenerator( $resultPageSet ) {
  48                 $this->run( $resultPageSet );
  49         }
  50
  51         private $fld_ids = false, $fld_title = false, $fld_patrol = false,
  52                 $fld_flags = false, $fld_timestamp = false, $fld_user = false,
  53                 $fld_comment = false, $fld_parsedcomment = false, $fld_sizes = false,
  54                 $fld_notificationtimestamp = false, $fld_userid = false,
  55                 $fld_loginfo = false;
  56
  57         /**
  58          * @param ApiPageSet $resultPageSet
  59          * @return void
  60          */
  61         private function run( $resultPageSet = null ) {
  62                 $this->selectNamedDB( 'watchlist', DB_REPLICA, 'watchlist' );
  63
  64                 $params = $this->extractRequestParams();
  65
  66                 $user = $this->getUser();
  67                 $wlowner = $this->getWatchlistUser( $params );
  68
  69                 if ( !is_null( $params['prop'] ) && is_null( $resultPageSet ) ) {
  70                         $prop = array_flip( $params['prop'] );
  71
  72                         $this->fld_ids = isset( $prop['ids'] );
  73                         $this->fld_title = isset( $prop['title'] );
  74                         $this->fld_flags = isset( $prop['flags'] );
  75                         $this->fld_user = isset( $prop['user'] );
  76                         $this->fld_userid = isset( $prop['userid'] );
  77                         $this->fld_comment = isset( $prop['comment'] );
  78                         $this->fld_parsedcomment = isset( $prop['parsedcomment'] );
  79                         $this->fld_timestamp = isset( $prop['timestamp'] );
  80                         $this->fld_sizes = isset( $prop['sizes'] );
  81                         $this->fld_patrol = isset( $prop['patrol'] );
  82                         $this->fld_notificationtimestamp = isset( $prop['notificationtimestamp'] );
  83                         $this->fld_loginfo = isset( $prop['loginfo'] );
  84
  85                         if ( $this->fld_patrol ) {
  86                                 if ( !$user->useRCPatrol() && !$user->useNPPatrol() ) {
  87                                         $this->dieWithError( 'apierror-permissiondenied-patrolflag', 'patrol' );
  88                                 }
  89                         }
  90
  91                         if ( $this->fld_comment || $this->fld_parsedcomment ) {
  92                                 $this->commentStore = new CommentStore( 'rc_comment' );
  93                         }
  94                 }
  95
  96                 $options = [
  97                         'dir' => $params['dir'] === 'older'
  98                                 ? WatchedItemQueryService::DIR_OLDER
  99                                 : WatchedItemQueryService::DIR_NEWER,
 100                 ];
 101
 102                 if ( is_null( $resultPageSet ) ) {
 103                         $options['includeFields'] = $this->getFieldsToInclude();
 104                 } else {
 105                         $options['usedInGenerator'] = true;
 106                 }
 107
 108                 if ( $params['start'] ) {
 109                         $options['start'] = $params['start'];
 110                 }
 111                 if ( $params['end'] ) {
 112                         $options['end'] = $params['end'];
 113                 }
 114
 115                 $startFrom = null;
 116                 if ( !is_null( $params['continue'] ) ) {
 117                         $cont = explode( '|', $params['continue'] );
 118                         $this->dieContinueUsageIf( count( $cont ) != 2 );
 119                         $continueTimestamp = $cont[0];
 120                         $continueId = (int)$cont[1];
 121                         $this->dieContinueUsageIf( $continueId != $cont[1] );
 122                         $startFrom = [ $continueTimestamp, $continueId ];
 123                 }
 124
 125                 if ( $wlowner !== $user ) {
 126                         $options['watchlistOwner'] = $wlowner;
 127                         $options['watchlistOwnerToken'] = $params['token'];
 128                 }
 129
 130                 if ( !is_null( $params['namespace'] ) ) {
 131                         $options['namespaceIds'] = $params['namespace'];
 132                 }
 133
 134                 if ( $params['allrev'] ) {
 135                         $options['allRevisions'] = true;
 136                 }
 137
 138                 if ( !is_null( $params['show'] ) ) {
 139                         $show = array_flip( $params['show'] );
 140
 141                         /* Check for conflicting parameters. */
 142                         if ( $this->showParamsConflicting( $show ) ) {
 143                                 $this->dieWithError( 'apierror-show' );
 144                         }
 145
 146                         // Check permissions.
 147                         if ( isset( $show[WatchedItemQueryService::FILTER_PATROLLED] )
 148                                 || isset( $show[WatchedItemQueryService::FILTER_NOT_PATROLLED] )
 149                         ) {
 150                                 if ( !$user->useRCPatrol() && !$user->useNPPatrol() ) {
 151                                         $this->dieWithError( 'apierror-permissiondenied-patrolflag', 'permissiondenied' );
 152                                 }
 153                         }
 154
 155                         $options['filters'] = array_keys( $show );
 156                 }
 157
 158                 if ( !is_null( $params['type'] ) ) {
 159                         try {
 160                                 $rcTypes = RecentChange::parseToRCType( $params['type'] );
 161                                 if ( $rcTypes ) {
 162                                         $options['rcTypes'] = $rcTypes;
 163                                 }
 164                         } catch ( Exception $e ) {
 165                                 ApiBase::dieDebug( __METHOD__, $e->getMessage() );
 166                         }
 167                 }
 168
 169                 $this->requireMaxOneParameter( $params, 'user', 'excludeuser' );
 170                 if ( !is_null( $params['user'] ) ) {
 171                         $options['onlyByUser'] = $params['user'];
 172                 }
 173                 if ( !is_null( $params['excludeuser'] ) ) {
 174                         $options['notByUser'] = $params['excludeuser'];
 175                 }
 176
 177                 $options['limit'] = $params['limit'];
 178
 179                 Hooks::run( 'ApiQueryWatchlistPrepareWatchedItemQueryServiceOptions', [
 180                         $this, $params, &$options
 181                 ] );
 182
 183                 $ids = [];
 184                 $count = 0;
 185                 $watchedItemQuery = MediaWikiServices::getInstance()->getWatchedItemQueryService();
 186                 $items = $watchedItemQuery->getWatchedItemsWithRecentChangeInfo( $wlowner, $options, $startFrom );
 187
 188                 foreach ( $items as list( $watchedItem, $recentChangeInfo ) ) {
 189                         /** @var WatchedItem $watchedItem */
 190                         if ( is_null( $resultPageSet ) ) {
 191                                 $vals = $this->extractOutputData( $watchedItem, $recentChangeInfo );
 192                                 $fit = $this->getResult()->addValue( [ 'query', $this->getModuleName() ], null, $vals );
 193                                 if ( !$fit ) {
 194                                         $startFrom = [ $recentChangeInfo['rc_timestamp'], $recentChangeInfo['rc_id'] ];
 195                                         break;
 196                                 }
 197                         } else {
 198                                 if ( $params['allrev'] ) {
 199                                         $ids[] = intval( $recentChangeInfo['rc_this_oldid'] );
 200                                 } else {
 201                                         $ids[] = intval( $recentChangeInfo['rc_cur_id'] );
 202                                 }
 203                         }
 204                 }
 205
 206                 if ( $startFrom !== null ) {
 207                         $this->setContinueEnumParameter( 'continue', implode( '|', $startFrom ) );
 208                 }
 209
 210                 if ( is_null( $resultPageSet ) ) {
 211                         $this->getResult()->addIndexedTagName(
 212                                 [ 'query', $this->getModuleName() ],
 213                                 'item'
 214                         );
 215                 } elseif ( $params['allrev'] ) {
 216                         $resultPageSet->populateFromRevisionIDs( $ids );
 217                 } else {
 218                         $resultPageSet->populateFromPageIDs( $ids );
 219                 }
 220         }
 221
 222         private function getFieldsToInclude() {
 223                 $includeFields = [];
 224                 if ( $this->fld_flags ) {
 225                         $includeFields[] = WatchedItemQueryService::INCLUDE_FLAGS;
 226                 }
 227                 if ( $this->fld_user || $this->fld_userid ) {
 228                         $includeFields[] = WatchedItemQueryService::INCLUDE_USER_ID;
 229                 }
 230                 if ( $this->fld_user ) {
 231                         $includeFields[] = WatchedItemQueryService::INCLUDE_USER;
 232                 }
 233                 if ( $this->fld_comment || $this->fld_parsedcomment ) {
 234                         $includeFields[] = WatchedItemQueryService::INCLUDE_COMMENT;
 235                 }
 236                 if ( $this->fld_patrol ) {
 237                         $includeFields[] = WatchedItemQueryService::INCLUDE_PATROL_INFO;
 238                 }
 239                 if ( $this->fld_sizes ) {
 240                         $includeFields[] = WatchedItemQueryService::INCLUDE_SIZES;
 241                 }
 242                 if ( $this->fld_loginfo ) {
 243                         $includeFields[] = WatchedItemQueryService::INCLUDE_LOG_INFO;
 244                 }
 245                 return $includeFields;
 246         }
 247
 248         private function showParamsConflicting( array $show ) {
 249                 return ( isset( $show[WatchedItemQueryService::FILTER_MINOR] )
 250                         && isset( $show[WatchedItemQueryService::FILTER_NOT_MINOR] ) )
 251                 || ( isset( $show[WatchedItemQueryService::FILTER_BOT] )
 252                         && isset( $show[WatchedItemQueryService::FILTER_NOT_BOT] ) )
 253                 || ( isset( $show[WatchedItemQueryService::FILTER_ANON] )
 254                         && isset( $show[WatchedItemQueryService::FILTER_NOT_ANON] ) )
 255                 || ( isset( $show[WatchedItemQueryService::FILTER_PATROLLED] )
 256                         && isset( $show[WatchedItemQueryService::FILTER_NOT_PATROLLED] ) )
 257                 || ( isset( $show[WatchedItemQueryService::FILTER_UNREAD] )
 258                         && isset( $show[WatchedItemQueryService::FILTER_NOT_UNREAD] ) );
 259         }
 260
 261         private function extractOutputData( WatchedItem $watchedItem, array $recentChangeInfo ) {
 262                 /* Determine the title of the page that has been changed. */
 263                 $title = Title::newFromLinkTarget( $watchedItem->getLinkTarget() );
 264                 $user = $this->getUser();
 265
 266                 /* Our output data. */
 267                 $vals = [];
 268                 $type = intval( $recentChangeInfo['rc_type'] );
 269                 $vals['type'] = RecentChange::parseFromRCType( $type );
 270                 $anyHidden = false;
 271
 272                 /* Create a new entry in the result for the title. */
 273                 if ( $this->fld_title || $this->fld_ids ) {
 274                         // These should already have been filtered out of the query, but just in case.
 275                         if ( $type === RC_LOG && ( $recentChangeInfo['rc_deleted'] & LogPage::DELETED_ACTION ) ) {
 276                                 $vals['actionhidden'] = true;
 277                                 $anyHidden = true;
 278                         }
 279                         if ( $type !== RC_LOG ||
 280                                 LogEventsList::userCanBitfield(
 281                                         $recentChangeInfo['rc_deleted'],
 282                                         LogPage::DELETED_ACTION,
 283                                         $user
 284                                 )
 285                         ) {
 286                                 if ( $this->fld_title ) {
 287                                         ApiQueryBase::addTitleInfo( $vals, $title );
 288                                 }
 289                                 if ( $this->fld_ids ) {
 290                                         $vals['pageid'] = intval( $recentChangeInfo['rc_cur_id'] );
 291                                         $vals['revid'] = intval( $recentChangeInfo['rc_this_oldid'] );
 292                                         $vals['old_revid'] = intval( $recentChangeInfo['rc_last_oldid'] );
 293                                 }
 294                         }
 295                 }
 296
 297                 /* Add user data and 'anon' flag, if user is anonymous. */
 298                 if ( $this->fld_user || $this->fld_userid ) {
 299                         if ( $recentChangeInfo['rc_deleted'] & Revision::DELETED_USER ) {
 300                                 $vals['userhidden'] = true;
 301                                 $anyHidden = true;
 302                         }
 303                         if ( Revision::userCanBitfield(
 304                                 $recentChangeInfo['rc_deleted'],
 305                                 Revision::DELETED_USER,
 306                                 $user
 307                         ) ) {
 308                                 if ( $this->fld_userid ) {
 309                                         $vals['userid'] = (int)$recentChangeInfo['rc_user'];
 310                                         // for backwards compatibility
 311                                         $vals['user'] = (int)$recentChangeInfo['rc_user'];
 312                                 }
 313
 314                                 if ( $this->fld_user ) {
 315                                         $vals['user'] = $recentChangeInfo['rc_user_text'];
 316                                 }
 317
 318                                 if ( !$recentChangeInfo['rc_user'] ) {
 319                                         $vals['anon'] = true;
 320                                 }
 321                         }
 322                 }
 323
 324                 /* Add flags, such as new, minor, bot. */
 325                 if ( $this->fld_flags ) {
 326                         $vals['bot'] = (bool)$recentChangeInfo['rc_bot'];
 327                         $vals['new'] = $recentChangeInfo['rc_type'] == RC_NEW;
 328                         $vals['minor'] = (bool)$recentChangeInfo['rc_minor'];
 329                 }
 330
 331                 /* Add sizes of each revision. (Only available on 1.10+) */
 332                 if ( $this->fld_sizes ) {
 333                         $vals['oldlen'] = intval( $recentChangeInfo['rc_old_len'] );
 334                         $vals['newlen'] = intval( $recentChangeInfo['rc_new_len'] );
 335                 }
 336
 337                 /* Add the timestamp. */
 338                 if ( $this->fld_timestamp ) {
 339                         $vals['timestamp'] = wfTimestamp( TS_ISO_8601, $recentChangeInfo['rc_timestamp'] );
 340                 }
 341
 342                 if ( $this->fld_notificationtimestamp ) {
 343                         $vals['notificationtimestamp'] = ( $watchedItem->getNotificationTimestamp() == null )
 344                                 ? ''
 345                                 : wfTimestamp( TS_ISO_8601, $watchedItem->getNotificationTimestamp() );
 346                 }
 347
 348                 /* Add edit summary / log summary. */
 349                 if ( $this->fld_comment || $this->fld_parsedcomment ) {
 350                         if ( $recentChangeInfo['rc_deleted'] & Revision::DELETED_COMMENT ) {
 351                                 $vals['commenthidden'] = true;
 352                                 $anyHidden = true;
 353                         }
 354                         if ( Revision::userCanBitfield(
 355                                 $recentChangeInfo['rc_deleted'],
 356                                 Revision::DELETED_COMMENT,
 357                                 $user
 358                         ) ) {
 359                                 $comment = $this->commentStore->getComment( $recentChangeInfo )->text;
 360                                 if ( $this->fld_comment ) {
 361                                         $vals['comment'] = $comment;
 362                                 }
 363
 364                                 if ( $this->fld_parsedcomment ) {
 365                                         $vals['parsedcomment'] = Linker::formatComment( $comment, $title );
 366                                 }
 367                         }
 368                 }
 369
 370                 /* Add the patrolled flag */
 371                 if ( $this->fld_patrol ) {
 372                         $vals['patrolled'] = $recentChangeInfo['rc_patrolled'] == 1;
 373                         $vals['unpatrolled'] = ChangesList::isUnpatrolled( (object)$recentChangeInfo, $user );
 374                 }
 375
 376                 if ( $this->fld_loginfo && $recentChangeInfo['rc_type'] == RC_LOG ) {
 377                         if ( $recentChangeInfo['rc_deleted'] & LogPage::DELETED_ACTION ) {
 378                                 $vals['actionhidden'] = true;
 379                                 $anyHidden = true;
 380                         }
 381                         if ( LogEventsList::userCanBitfield(
 382                                 $recentChangeInfo['rc_deleted'],
 383                                 LogPage::DELETED_ACTION,
 384                                 $user
 385                         ) ) {
 386                                 $vals['logid'] = intval( $recentChangeInfo['rc_logid'] );
 387                                 $vals['logtype'] = $recentChangeInfo['rc_log_type'];
 388                                 $vals['logaction'] = $recentChangeInfo['rc_log_action'];
 389                                 $vals['logparams'] = LogFormatter::newFromRow( $recentChangeInfo )->formatParametersForApi();
 390                         }
 391                 }
 392
 393                 if ( $anyHidden && ( $recentChangeInfo['rc_deleted'] & Revision::DELETED_RESTRICTED ) ) {
 394                         $vals['suppressed'] = true;
 395                 }
 396
 397                 Hooks::run( 'ApiQueryWatchlistExtractOutputData', [
 398                         $this, $watchedItem, $recentChangeInfo, &$vals
 399                 ] );
 400
 401                 return $vals;
 402         }
 403
 404         public function getAllowedParams() {
 405                 return [
 406                         'allrev' => false,
 407                         'start' => [
 408                                 ApiBase::PARAM_TYPE => 'timestamp'
 409                         ],
 410                         'end' => [
 411                                 ApiBase::PARAM_TYPE => 'timestamp'
 412                         ],
 413                         'namespace' => [
 414                                 ApiBase::PARAM_ISMULTI => true,
 415                                 ApiBase::PARAM_TYPE => 'namespace'
 416                         ],
 417                         'user' => [
 418                                 ApiBase::PARAM_TYPE => 'user',
 419                         ],
 420                         'excludeuser' => [
 421                                 ApiBase::PARAM_TYPE => 'user',
 422                         ],
 423                         'dir' => [
 424                                 ApiBase::PARAM_DFLT => 'older',
 425                                 ApiBase::PARAM_TYPE => [
 426                                         'newer',
 427                                         'older'
 428                                 ],
 429                                 ApiHelp::PARAM_HELP_MSG => 'api-help-param-direction',
 430                         ],
 431                         'limit' => [
 432                                 ApiBase::PARAM_DFLT => 10,
 433                                 ApiBase::PARAM_TYPE => 'limit',
 434                                 ApiBase::PARAM_MIN => 1,
 435                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 436                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 437                         ],
 438                         'prop' => [
 439                                 ApiBase::PARAM_ISMULTI => true,
 440                                 ApiBase::PARAM_DFLT => 'ids|title|flags',
 441                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
 442                                 ApiBase::PARAM_TYPE => [
 443                                         'ids',
 444                                         'title',
 445                                         'flags',
 446                                         'user',
 447                                         'userid',
 448                                         'comment',
 449                                         'parsedcomment',
 450                                         'timestamp',
 451                                         'patrol',
 452                                         'sizes',
 453                                         'notificationtimestamp',
 454                                         'loginfo',
 455                                 ]
 456                         ],
 457                         'show' => [
 458                                 ApiBase::PARAM_ISMULTI => true,
 459                                 ApiBase::PARAM_TYPE => [
 460                                         WatchedItemQueryService::FILTER_MINOR,
 461                                         WatchedItemQueryService::FILTER_NOT_MINOR,
 462                                         WatchedItemQueryService::FILTER_BOT,
 463                                         WatchedItemQueryService::FILTER_NOT_BOT,
 464                                         WatchedItemQueryService::FILTER_ANON,
 465                                         WatchedItemQueryService::FILTER_NOT_ANON,
 466                                         WatchedItemQueryService::FILTER_PATROLLED,
 467                                         WatchedItemQueryService::FILTER_NOT_PATROLLED,
 468                                         WatchedItemQueryService::FILTER_UNREAD,
 469                                         WatchedItemQueryService::FILTER_NOT_UNREAD,
 470                                 ]
 471                         ],
 472                         'type' => [
 473                                 ApiBase::PARAM_DFLT => 'edit|new|log|categorize',
 474                                 ApiBase::PARAM_ISMULTI => true,
 475                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
 476                                 ApiBase::PARAM_TYPE => RecentChange::getChangeTypes()
 477                         ],
 478                         'owner' => [
 479                                 ApiBase::PARAM_TYPE => 'user'
 480                         ],
 481                         'token' => [
 482                                 ApiBase::PARAM_TYPE => 'string',
 483                                 ApiBase::PARAM_SENSITIVE => true,
 484                         ],
 485                         'continue' => [
 486                                 ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
 487                         ],
 488                 ];
 489         }
 490
 491         protected function getExamplesMessages() {
 492                 return [
 493                         'action=query&list=watchlist'
 494                                 => 'apihelp-query+watchlist-example-simple',
 495                         'action=query&list=watchlist&wlprop=ids|title|timestamp|user|comment'
 496                                 => 'apihelp-query+watchlist-example-props',
 497                         'action=query&list=watchlist&wlallrev=&wlprop=ids|title|timestamp|user|comment'
 498                                 => 'apihelp-query+watchlist-example-allrev',
 499                         'action=query&generator=watchlist&prop=info'
 500                                 => 'apihelp-query+watchlist-example-generator',
 501                         'action=query&generator=watchlist&gwlallrev=&prop=revisions&rvprop=timestamp|user'
 502                                 => 'apihelp-query+watchlist-example-generator-rev',
 503                         'action=query&list=watchlist&wlowner=Example&wltoken=123ABC'
 504                                 => 'apihelp-query+watchlist-example-wlowner',
 505                 ];
 506         }
 507
 508         public function getHelpUrls() {
 509                 return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Watchlist';
 510         }
 511 }