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