includes/api/ApiQueryUserContributions.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on Oct 16, 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  * This query action adds a list of a specified user's contributions to the output.
  29  *
  30  * @ingroup API
  31  */
  32 class ApiQueryContributions extends ApiQueryBase {
  33
  34         public function __construct( ApiQuery $query, $moduleName ) {
  35                 parent::__construct( $query, $moduleName, 'uc' );
  36         }
  37
  38         private $params, $prefixMode, $userprefix, $multiUserMode, $idMode, $usernames, $userids,
  39                 $parentLens;
  40         private $fld_ids = false, $fld_title = false, $fld_timestamp = false,
  41                 $fld_comment = false, $fld_parsedcomment = false, $fld_flags = false,
  42                 $fld_patrolled = false, $fld_tags = false, $fld_size = false, $fld_sizediff = false;
  43
  44         public function execute() {
  45                 // Parse some parameters
  46                 $this->params = $this->extractRequestParams();
  47
  48                 $prop = array_flip( $this->params['prop'] );
  49                 $this->fld_ids = isset( $prop['ids'] );
  50                 $this->fld_title = isset( $prop['title'] );
  51                 $this->fld_comment = isset( $prop['comment'] );
  52                 $this->fld_parsedcomment = isset( $prop['parsedcomment'] );
  53                 $this->fld_size = isset( $prop['size'] );
  54                 $this->fld_sizediff = isset( $prop['sizediff'] );
  55                 $this->fld_flags = isset( $prop['flags'] );
  56                 $this->fld_timestamp = isset( $prop['timestamp'] );
  57                 $this->fld_patrolled = isset( $prop['patrolled'] );
  58                 $this->fld_tags = isset( $prop['tags'] );
  59
  60                 // Most of this code will use the 'contributions' group DB, which can map to replica DBs
  61                 // with extra user based indexes or partioning by user. The additional metadata
  62                 // queries should use a regular replica DB since the lookup pattern is not all by user.
  63                 $dbSecondary = $this->getDB(); // any random replica DB
  64
  65                 // TODO: if the query is going only against the revision table, should this be done?
  66                 $this->selectNamedDB( 'contributions', DB_REPLICA, 'contributions' );
  67
  68                 $this->idMode = false;
  69                 if ( isset( $this->params['userprefix'] ) ) {
  70                         $this->prefixMode = true;
  71                         $this->multiUserMode = true;
  72                         $this->userprefix = $this->params['userprefix'];
  73                 } else {
  74                         $anyIPs = false;
  75                         $this->userids = [];
  76                         $this->usernames = [];
  77                         if ( !is_array( $this->params['user'] ) ) {
  78                                 $this->params['user'] = [ $this->params['user'] ];
  79                         }
  80                         if ( !count( $this->params['user'] ) ) {
  81                                 $encParamName = $this->encodeParamName( 'user' );
  82                                 $this->dieWithError(
  83                                         [ 'apierror-paramempty', $encParamName ], "paramempty_$encParamName"
  84                                 );
  85                         }
  86                         foreach ( $this->params['user'] as $u ) {
  87                                 if ( is_null( $u ) || $u === '' ) {
  88                                         $encParamName = $this->encodeParamName( 'user' );
  89                                         $this->dieWithError(
  90                                                 [ 'apierror-paramempty', $encParamName ], "paramempty_$encParamName"
  91                                         );
  92                                 }
  93
  94                                 if ( User::isIP( $u ) ) {
  95                                         $anyIPs = true;
  96                                         $this->usernames[] = $u;
  97                                 } else {
  98                                         $name = User::getCanonicalName( $u, 'valid' );
  99                                         if ( $name === false ) {
 100                                                 $encParamName = $this->encodeParamName( 'user' );
 101                                                 $this->dieWithError(
 102                                                         [ 'apierror-baduser', $encParamName, wfEscapeWikiText( $u ) ], "baduser_$encParamName"
 103                                                 );
 104                                         }
 105                                         $this->usernames[] = $name;
 106                                 }
 107                         }
 108                         $this->prefixMode = false;
 109                         $this->multiUserMode = ( count( $this->params['user'] ) > 1 );
 110
 111                         if ( !$anyIPs ) {
 112                                 $dbr = $this->getDB();
 113                                 $res = $dbr->select( 'user', 'user_id', [ 'user_name' => $this->usernames ], __METHOD__ );
 114                                 foreach ( $res as $row ) {
 115                                         $this->userids[] = $row->user_id;
 116                                 }
 117                                 $this->idMode = count( $this->userids ) === count( $this->usernames );
 118                         }
 119                 }
 120
 121                 $this->prepareQuery();
 122
 123                 $hookData = [];
 124                 // Do the actual query.
 125                 $res = $this->select( __METHOD__, [], $hookData );
 126
 127                 if ( $this->fld_sizediff ) {
 128                         $revIds = [];
 129                         foreach ( $res as $row ) {
 130                                 if ( $row->rev_parent_id ) {
 131                                         $revIds[] = $row->rev_parent_id;
 132                                 }
 133                         }
 134                         $this->parentLens = Revision::getParentLengths( $dbSecondary, $revIds );
 135                         $res->rewind(); // reset
 136                 }
 137
 138                 // Initialise some variables
 139                 $count = 0;
 140                 $limit = $this->params['limit'];
 141
 142                 // Fetch each row
 143                 foreach ( $res as $row ) {
 144                         if ( ++$count > $limit ) {
 145                                 // We've reached the one extra which shows that there are
 146                                 // additional pages to be had. Stop here...
 147                                 $this->setContinueEnumParameter( 'continue', $this->continueStr( $row ) );
 148                                 break;
 149                         }
 150
 151                         $vals = $this->extractRowInfo( $row );
 152                         $fit = $this->processRow( $row, $vals, $hookData ) &&
 153                                 $this->getResult()->addValue( [ 'query', $this->getModuleName() ], null, $vals );
 154                         if ( !$fit ) {
 155                                 $this->setContinueEnumParameter( 'continue', $this->continueStr( $row ) );
 156                                 break;
 157                         }
 158                 }
 159
 160                 $this->getResult()->addIndexedTagName(
 161                         [ 'query', $this->getModuleName() ],
 162                         'item'
 163                 );
 164         }
 165
 166         /**
 167          * Prepares the query and returns the limit of rows requested
 168          */
 169         private function prepareQuery() {
 170                 // We're after the revision table, and the corresponding page
 171                 // row for anything we retrieve. We may also need the
 172                 // recentchanges row and/or tag summary row.
 173                 $user = $this->getUser();
 174                 $tables = [ 'page', 'revision' ]; // Order may change
 175                 $this->addWhere( 'page_id=rev_page' );
 176
 177                 // Handle continue parameter
 178                 if ( !is_null( $this->params['continue'] ) ) {
 179                         $continue = explode( '|', $this->params['continue'] );
 180                         $db = $this->getDB();
 181                         if ( $this->multiUserMode ) {
 182                                 $this->dieContinueUsageIf( count( $continue ) != 4 );
 183                                 $modeFlag = array_shift( $continue );
 184                                 $this->dieContinueUsageIf( !in_array( $modeFlag, [ 'id', 'name' ] ) );
 185                                 if ( $this->idMode && $modeFlag === 'name' ) {
 186                                         // The users were created since this query started, but we
 187                                         // can't go back and change modes now. So just keep on with
 188                                         // name mode.
 189                                         $this->idMode = false;
 190                                 }
 191                                 $this->dieContinueUsageIf( ( $modeFlag === 'id' ) !== $this->idMode );
 192                                 $userField = $this->idMode ? 'rev_user' : 'rev_user_text';
 193                                 $encUser = $db->addQuotes( array_shift( $continue ) );
 194                         } else {
 195                                 $this->dieContinueUsageIf( count( $continue ) != 2 );
 196                         }
 197                         $encTS = $db->addQuotes( $db->timestamp( $continue[0] ) );
 198                         $encId = (int)$continue[1];
 199                         $this->dieContinueUsageIf( $encId != $continue[1] );
 200                         $op = ( $this->params['dir'] == 'older' ? '<' : '>' );
 201                         if ( $this->multiUserMode ) {
 202                                 $this->addWhere(
 203                                         "$userField $op $encUser OR " .
 204                                         "($userField = $encUser AND " .
 205                                         "(rev_timestamp $op $encTS OR " .
 206                                         "(rev_timestamp = $encTS AND " .
 207                                         "rev_id $op= $encId)))"
 208                                 );
 209                         } else {
 210                                 $this->addWhere(
 211                                         "rev_timestamp $op $encTS OR " .
 212                                         "(rev_timestamp = $encTS AND " .
 213                                         "rev_id $op= $encId)"
 214                                 );
 215                         }
 216                 }
 217
 218                 // Don't include any revisions where we're not supposed to be able to
 219                 // see the username.
 220                 if ( !$user->isAllowed( 'deletedhistory' ) ) {
 221                         $bitmask = Revision::DELETED_USER;
 222                 } elseif ( !$user->isAllowedAny( 'suppressrevision', 'viewsuppressed' ) ) {
 223                         $bitmask = Revision::DELETED_USER | Revision::DELETED_RESTRICTED;
 224                 } else {
 225                         $bitmask = 0;
 226                 }
 227                 if ( $bitmask ) {
 228                         $this->addWhere( $this->getDB()->bitAnd( 'rev_deleted', $bitmask ) . " != $bitmask" );
 229                 }
 230
 231                 // We only want pages by the specified users.
 232                 if ( $this->prefixMode ) {
 233                         $this->addWhere( 'rev_user_text' .
 234                                 $this->getDB()->buildLike( $this->userprefix, $this->getDB()->anyString() ) );
 235                 } elseif ( $this->idMode ) {
 236                         $this->addWhereFld( 'rev_user', $this->userids );
 237                 } else {
 238                         $this->addWhereFld( 'rev_user_text', $this->usernames );
 239                 }
 240                 // ... and in the specified timeframe.
 241                 // Ensure the same sort order for rev_user/rev_user_text and rev_timestamp
 242                 // so our query is indexed
 243                 if ( $this->multiUserMode ) {
 244                         $this->addWhereRange( $this->idMode ? 'rev_user' : 'rev_user_text',
 245                                 $this->params['dir'], null, null );
 246                 }
 247                 $this->addTimestampWhereRange( 'rev_timestamp',
 248                         $this->params['dir'], $this->params['start'], $this->params['end'] );
 249                 // Include in ORDER BY for uniqueness
 250                 $this->addWhereRange( 'rev_id', $this->params['dir'], null, null );
 251
 252                 $this->addWhereFld( 'page_namespace', $this->params['namespace'] );
 253
 254                 $show = $this->params['show'];
 255                 if ( $this->params['toponly'] ) { // deprecated/old param
 256                         $show[] = 'top';
 257                 }
 258                 if ( !is_null( $show ) ) {
 259                         $show = array_flip( $show );
 260
 261                         if ( ( isset( $show['minor'] ) && isset( $show['!minor'] ) )
 262                                 || ( isset( $show['patrolled'] ) && isset( $show['!patrolled'] ) )
 263                                 || ( isset( $show['top'] ) && isset( $show['!top'] ) )
 264                                 || ( isset( $show['new'] ) && isset( $show['!new'] ) )
 265                         ) {
 266                                 $this->dieWithError( 'apierror-show' );
 267                         }
 268
 269                         $this->addWhereIf( 'rev_minor_edit = 0', isset( $show['!minor'] ) );
 270                         $this->addWhereIf( 'rev_minor_edit != 0', isset( $show['minor'] ) );
 271                         $this->addWhereIf( 'rc_patrolled = 0', isset( $show['!patrolled'] ) );
 272                         $this->addWhereIf( 'rc_patrolled != 0', isset( $show['patrolled'] ) );
 273                         $this->addWhereIf( 'rev_id != page_latest', isset( $show['!top'] ) );
 274                         $this->addWhereIf( 'rev_id = page_latest', isset( $show['top'] ) );
 275                         $this->addWhereIf( 'rev_parent_id != 0', isset( $show['!new'] ) );
 276                         $this->addWhereIf( 'rev_parent_id = 0', isset( $show['new'] ) );
 277                 }
 278                 $this->addOption( 'LIMIT', $this->params['limit'] + 1 );
 279
 280                 // Mandatory fields: timestamp allows request continuation
 281                 // ns+title checks if the user has access rights for this page
 282                 // user_text is necessary if multiple users were specified
 283                 $this->addFields( [
 284                         'rev_id',
 285                         'rev_timestamp',
 286                         'page_namespace',
 287                         'page_title',
 288                         'rev_user',
 289                         'rev_user_text',
 290                         'rev_deleted'
 291                 ] );
 292
 293                 if ( isset( $show['patrolled'] ) || isset( $show['!patrolled'] ) ||
 294                         $this->fld_patrolled
 295                 ) {
 296                         if ( !$user->useRCPatrol() && !$user->useNPPatrol() ) {
 297                                 $this->dieWithError( 'apierror-permissiondenied-patrolflag', 'permissiondenied' );
 298                         }
 299
 300                         // Use a redundant join condition on both
 301                         // timestamp and ID so we can use the timestamp
 302                         // index
 303                         $index['recentchanges'] = 'rc_user_text';
 304                         if ( isset( $show['patrolled'] ) || isset( $show['!patrolled'] ) ) {
 305                                 // Put the tables in the right order for
 306                                 // STRAIGHT_JOIN
 307                                 $tables = [ 'revision', 'recentchanges', 'page' ];
 308                                 $this->addOption( 'STRAIGHT_JOIN' );
 309                                 $this->addWhere( 'rc_user_text=rev_user_text' );
 310                                 $this->addWhere( 'rc_timestamp=rev_timestamp' );
 311                                 $this->addWhere( 'rc_this_oldid=rev_id' );
 312                         } else {
 313                                 $tables[] = 'recentchanges';
 314                                 $this->addJoinConds( [ 'recentchanges' => [
 315                                         'LEFT JOIN', [
 316                                                 'rc_user_text=rev_user_text',
 317                                                 'rc_timestamp=rev_timestamp',
 318                                                 'rc_this_oldid=rev_id' ] ] ] );
 319                         }
 320                 }
 321
 322                 $this->addTables( $tables );
 323                 $this->addFieldsIf( 'rev_page', $this->fld_ids );
 324                 $this->addFieldsIf( 'page_latest', $this->fld_flags );
 325                 // $this->addFieldsIf( 'rev_text_id', $this->fld_ids ); // Should this field be exposed?
 326                 $this->addFieldsIf( 'rev_comment', $this->fld_comment || $this->fld_parsedcomment );
 327                 $this->addFieldsIf( 'rev_len', $this->fld_size || $this->fld_sizediff );
 328                 $this->addFieldsIf( 'rev_minor_edit', $this->fld_flags );
 329                 $this->addFieldsIf( 'rev_parent_id', $this->fld_flags || $this->fld_sizediff || $this->fld_ids );
 330                 $this->addFieldsIf( 'rc_patrolled', $this->fld_patrolled );
 331
 332                 if ( $this->fld_tags ) {
 333                         $this->addTables( 'tag_summary' );
 334                         $this->addJoinConds(
 335                                 [ 'tag_summary' => [ 'LEFT JOIN', [ 'rev_id=ts_rev_id' ] ] ]
 336                         );
 337                         $this->addFields( 'ts_tags' );
 338                 }
 339
 340                 if ( isset( $this->params['tag'] ) ) {
 341                         $this->addTables( 'change_tag' );
 342                         $this->addJoinConds(
 343                                 [ 'change_tag' => [ 'INNER JOIN', [ 'rev_id=ct_rev_id' ] ] ]
 344                         );
 345                         $this->addWhereFld( 'ct_tag', $this->params['tag'] );
 346                 }
 347
 348                 if ( isset( $index ) ) {
 349                         $this->addOption( 'USE INDEX', $index );
 350                 }
 351         }
 352
 353         /**
 354          * Extract fields from the database row and append them to a result array
 355          *
 356          * @param stdClass $row
 357          * @return array
 358          */
 359         private function extractRowInfo( $row ) {
 360                 $vals = [];
 361                 $anyHidden = false;
 362
 363                 if ( $row->rev_deleted & Revision::DELETED_TEXT ) {
 364                         $vals['texthidden'] = true;
 365                         $anyHidden = true;
 366                 }
 367
 368                 // Any rows where we can't view the user were filtered out in the query.
 369                 $vals['userid'] = (int)$row->rev_user;
 370                 $vals['user'] = $row->rev_user_text;
 371                 if ( $row->rev_deleted & Revision::DELETED_USER ) {
 372                         $vals['userhidden'] = true;
 373                         $anyHidden = true;
 374                 }
 375                 if ( $this->fld_ids ) {
 376                         $vals['pageid'] = intval( $row->rev_page );
 377                         $vals['revid'] = intval( $row->rev_id );
 378                         // $vals['textid'] = intval( $row->rev_text_id ); // todo: Should this field be exposed?
 379
 380                         if ( !is_null( $row->rev_parent_id ) ) {
 381                                 $vals['parentid'] = intval( $row->rev_parent_id );
 382                         }
 383                 }
 384
 385                 $title = Title::makeTitle( $row->page_namespace, $row->page_title );
 386
 387                 if ( $this->fld_title ) {
 388                         ApiQueryBase::addTitleInfo( $vals, $title );
 389                 }
 390
 391                 if ( $this->fld_timestamp ) {
 392                         $vals['timestamp'] = wfTimestamp( TS_ISO_8601, $row->rev_timestamp );
 393                 }
 394
 395                 if ( $this->fld_flags ) {
 396                         $vals['new'] = $row->rev_parent_id == 0 && !is_null( $row->rev_parent_id );
 397                         $vals['minor'] = (bool)$row->rev_minor_edit;
 398                         $vals['top'] = $row->page_latest == $row->rev_id;
 399                 }
 400
 401                 if ( ( $this->fld_comment || $this->fld_parsedcomment ) && isset( $row->rev_comment ) ) {
 402                         if ( $row->rev_deleted & Revision::DELETED_COMMENT ) {
 403                                 $vals['commenthidden'] = true;
 404                                 $anyHidden = true;
 405                         }
 406
 407                         $userCanView = Revision::userCanBitfield(
 408                                 $row->rev_deleted,
 409                                 Revision::DELETED_COMMENT, $this->getUser()
 410                         );
 411
 412                         if ( $userCanView ) {
 413                                 if ( $this->fld_comment ) {
 414                                         $vals['comment'] = $row->rev_comment;
 415                                 }
 416
 417                                 if ( $this->fld_parsedcomment ) {
 418                                         $vals['parsedcomment'] = Linker::formatComment( $row->rev_comment, $title );
 419                                 }
 420                         }
 421                 }
 422
 423                 if ( $this->fld_patrolled ) {
 424                         $vals['patrolled'] = (bool)$row->rc_patrolled;
 425                 }
 426
 427                 if ( $this->fld_size && !is_null( $row->rev_len ) ) {
 428                         $vals['size'] = intval( $row->rev_len );
 429                 }
 430
 431                 if ( $this->fld_sizediff
 432                         && !is_null( $row->rev_len )
 433                         && !is_null( $row->rev_parent_id )
 434                 ) {
 435                         $parentLen = isset( $this->parentLens[$row->rev_parent_id] )
 436                                 ? $this->parentLens[$row->rev_parent_id]
 437                                 : 0;
 438                         $vals['sizediff'] = intval( $row->rev_len - $parentLen );
 439                 }
 440
 441                 if ( $this->fld_tags ) {
 442                         if ( $row->ts_tags ) {
 443                                 $tags = explode( ',', $row->ts_tags );
 444                                 ApiResult::setIndexedTagName( $tags, 'tag' );
 445                                 $vals['tags'] = $tags;
 446                         } else {
 447                                 $vals['tags'] = [];
 448                         }
 449                 }
 450
 451                 if ( $anyHidden && $row->rev_deleted & Revision::DELETED_RESTRICTED ) {
 452                         $vals['suppressed'] = true;
 453                 }
 454
 455                 return $vals;
 456         }
 457
 458         private function continueStr( $row ) {
 459                 if ( $this->multiUserMode ) {
 460                         if ( $this->idMode ) {
 461                                 return "id|$row->rev_user|$row->rev_timestamp|$row->rev_id";
 462                         } else {
 463                                 return "name|$row->rev_user_text|$row->rev_timestamp|$row->rev_id";
 464                         }
 465                 } else {
 466                         return "$row->rev_timestamp|$row->rev_id";
 467                 }
 468         }
 469
 470         public function getCacheMode( $params ) {
 471                 // This module provides access to deleted revisions and patrol flags if
 472                 // the requester is logged in
 473                 return 'anon-public-user-private';
 474         }
 475
 476         public function getAllowedParams() {
 477                 return [
 478                         'limit' => [
 479                                 ApiBase::PARAM_DFLT => 10,
 480                                 ApiBase::PARAM_TYPE => 'limit',
 481                                 ApiBase::PARAM_MIN => 1,
 482                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 483                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 484                         ],
 485                         'start' => [
 486                                 ApiBase::PARAM_TYPE => 'timestamp'
 487                         ],
 488                         'end' => [
 489                                 ApiBase::PARAM_TYPE => 'timestamp'
 490                         ],
 491                         'continue' => [
 492                                 ApiBase::PARAM_HELP_MSG => 'api-help-param-continue',
 493                         ],
 494                         'user' => [
 495                                 ApiBase::PARAM_TYPE => 'user',
 496                                 ApiBase::PARAM_ISMULTI => true
 497                         ],
 498                         'userprefix' => null,
 499                         'dir' => [
 500                                 ApiBase::PARAM_DFLT => 'older',
 501                                 ApiBase::PARAM_TYPE => [
 502                                         'newer',
 503                                         'older'
 504                                 ],
 505                                 ApiBase::PARAM_HELP_MSG => 'api-help-param-direction',
 506                         ],
 507                         'namespace' => [
 508                                 ApiBase::PARAM_ISMULTI => true,
 509                                 ApiBase::PARAM_TYPE => 'namespace'
 510                         ],
 511                         'prop' => [
 512                                 ApiBase::PARAM_ISMULTI => true,
 513                                 ApiBase::PARAM_DFLT => 'ids|title|timestamp|comment|size|flags',
 514                                 ApiBase::PARAM_TYPE => [
 515                                         'ids',
 516                                         'title',
 517                                         'timestamp',
 518                                         'comment',
 519                                         'parsedcomment',
 520                                         'size',
 521                                         'sizediff',
 522                                         'flags',
 523                                         'patrolled',
 524                                         'tags'
 525                                 ],
 526                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
 527                         ],
 528                         'show' => [
 529                                 ApiBase::PARAM_ISMULTI => true,
 530                                 ApiBase::PARAM_TYPE => [
 531                                         'minor',
 532                                         '!minor',
 533                                         'patrolled',
 534                                         '!patrolled',
 535                                         'top',
 536                                         '!top',
 537                                         'new',
 538                                         '!new',
 539                                 ],
 540                                 ApiBase::PARAM_HELP_MSG => [
 541                                         'apihelp-query+usercontribs-param-show',
 542                                         $this->getConfig()->get( 'RCMaxAge' )
 543                                 ],
 544                         ],
 545                         'tag' => null,
 546                         'toponly' => [
 547                                 ApiBase::PARAM_DFLT => false,
 548                                 ApiBase::PARAM_DEPRECATED => true,
 549                         ],
 550                 ];
 551         }
 552
 553         protected function getExamplesMessages() {
 554                 return [
 555                         'action=query&list=usercontribs&ucuser=Example'
 556                                 => 'apihelp-query+usercontribs-example-user',
 557                         'action=query&list=usercontribs&ucuserprefix=192.0.2.'
 558                                 => 'apihelp-query+usercontribs-example-ipprefix',
 559                 ];
 560         }
 561
 562         public function getHelpUrls() {
 563                 return 'https://www.mediawiki.org/wiki/API:Usercontribs';
 564         }
 565 }