includes/specials/SpecialRecentchanges.php

   1 <?php
   2 /**
   3  * Implements Special:Recentchanges
   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  * @ingroup SpecialPage
  22  */
  23
  24 use MediaWiki\MediaWikiServices;
  25 use Wikimedia\Rdbms\IResultWrapper;
  26 use Wikimedia\Rdbms\FakeResultWrapper;
  27
  28 /**
  29  * A special page that lists last changes made to the wiki
  30  *
  31  * @ingroup SpecialPage
  32  */
  33 class SpecialRecentChanges extends ChangesListSpecialPage {
  34
  35         protected static $savedQueriesPreferenceName = 'rcfilters-saved-queries';
  36         protected static $daysPreferenceName = 'rcdays'; // Use general RecentChanges preference
  37         protected static $limitPreferenceName = 'rcfilters-limit'; // Use RCFilters-specific preference
  38
  39         private $watchlistFilterGroupDefinition;
  40
  41         public function __construct( $name = 'Recentchanges', $restriction = '' ) {
  42                 parent::__construct( $name, $restriction );
  43
  44                 $this->watchlistFilterGroupDefinition = [
  45                         'name' => 'watchlist',
  46                         'title' => 'rcfilters-filtergroup-watchlist',
  47                         'class' => ChangesListStringOptionsFilterGroup::class,
  48                         'priority' => -9,
  49                         'isFullCoverage' => true,
  50                         'filters' => [
  51                                 [
  52                                         'name' => 'watched',
  53                                         'label' => 'rcfilters-filter-watchlist-watched-label',
  54                                         'description' => 'rcfilters-filter-watchlist-watched-description',
  55                                         'cssClassSuffix' => 'watched',
  56                                         'isRowApplicableCallable' => function ( $ctx, $rc ) {
  57                                                 return $rc->getAttribute( 'wl_user' );
  58                                         }
  59                                 ],
  60                                 [
  61                                         'name' => 'watchednew',
  62                                         'label' => 'rcfilters-filter-watchlist-watchednew-label',
  63                                         'description' => 'rcfilters-filter-watchlist-watchednew-description',
  64                                         'cssClassSuffix' => 'watchednew',
  65                                         'isRowApplicableCallable' => function ( $ctx, $rc ) {
  66                                                 return $rc->getAttribute( 'wl_user' ) &&
  67                                                         $rc->getAttribute( 'rc_timestamp' ) &&
  68                                                         $rc->getAttribute( 'wl_notificationtimestamp' ) &&
  69                                                         $rc->getAttribute( 'rc_timestamp' ) >= $rc->getAttribute( 'wl_notificationtimestamp' );
  70                                         },
  71                                 ],
  72                                 [
  73                                         'name' => 'notwatched',
  74                                         'label' => 'rcfilters-filter-watchlist-notwatched-label',
  75                                         'description' => 'rcfilters-filter-watchlist-notwatched-description',
  76                                         'cssClassSuffix' => 'notwatched',
  77                                         'isRowApplicableCallable' => function ( $ctx, $rc ) {
  78                                                 return $rc->getAttribute( 'wl_user' ) === null;
  79                                         },
  80                                 ]
  81                         ],
  82                         'default' => ChangesListStringOptionsFilterGroup::NONE,
  83                         'queryCallable' => function ( $specialPageClassName, $context, $dbr,
  84                                 &$tables, &$fields, &$conds, &$query_options, &$join_conds, $selectedValues ) {
  85                                 sort( $selectedValues );
  86                                 $notwatchedCond = 'wl_user IS NULL';
  87                                 $watchedCond = 'wl_user IS NOT NULL';
  88                                 $newCond = 'rc_timestamp >= wl_notificationtimestamp';
  89
  90                                 if ( $selectedValues === [ 'notwatched' ] ) {
  91                                         $conds[] = $notwatchedCond;
  92                                         return;
  93                                 }
  94
  95                                 if ( $selectedValues === [ 'watched' ] ) {
  96                                         $conds[] = $watchedCond;
  97                                         return;
  98                                 }
  99
 100                                 if ( $selectedValues === [ 'watchednew' ] ) {
 101                                         $conds[] = $dbr->makeList( [
 102                                                 $watchedCond,
 103                                                 $newCond
 104                                         ], LIST_AND );
 105                                         return;
 106                                 }
 107
 108                                 if ( $selectedValues === [ 'notwatched', 'watched' ] ) {
 109                                         // no filters
 110                                         return;
 111                                 }
 112
 113                                 if ( $selectedValues === [ 'notwatched', 'watchednew' ] ) {
 114                                         $conds[] = $dbr->makeList( [
 115                                                 $notwatchedCond,
 116                                                 $dbr->makeList( [
 117                                                         $watchedCond,
 118                                                         $newCond
 119                                                 ], LIST_AND )
 120                                         ], LIST_OR );
 121                                         return;
 122                                 }
 123
 124                                 if ( $selectedValues === [ 'watched', 'watchednew' ] ) {
 125                                         $conds[] = $watchedCond;
 126                                         return;
 127                                 }
 128
 129                                 if ( $selectedValues === [ 'notwatched', 'watched', 'watchednew' ] ) {
 130                                         // no filters
 131                                         return;
 132                                 }
 133                         }
 134                 ];
 135         }
 136
 137         /**
 138          * Main execution point
 139          *
 140          * @param string $subpage
 141          */
 142         public function execute( $subpage ) {
 143                 // Backwards-compatibility: redirect to new feed URLs
 144                 $feedFormat = $this->getRequest()->getVal( 'feed' );
 145                 if ( !$this->including() && $feedFormat ) {
 146                         $query = $this->getFeedQuery();
 147                         $query['feedformat'] = $feedFormat === 'atom' ? 'atom' : 'rss';
 148                         $this->getOutput()->redirect( wfAppendQuery( wfScript( 'api' ), $query ) );
 149
 150                         return;
 151                 }
 152
 153                 // 10 seconds server-side caching max
 154                 $out = $this->getOutput();
 155                 $out->setCdnMaxage( 10 );
 156                 // Check if the client has a cached version
 157                 $lastmod = $this->checkLastModified();
 158                 if ( $lastmod === false ) {
 159                         return;
 160                 }
 161
 162                 $this->addHelpLink(
 163                         '//meta.wikimedia.org/wiki/Special:MyLanguage/Help:Recent_changes',
 164                         true
 165                 );
 166                 parent::execute( $subpage );
 167         }
 168
 169         /**
 170          * @inheritDoc
 171          */
 172         protected function transformFilterDefinition( array $filterDefinition ) {
 173                 if ( isset( $filterDefinition['showHideSuffix'] ) ) {
 174                         $filterDefinition['showHide'] = 'rc' . $filterDefinition['showHideSuffix'];
 175                 }
 176
 177                 return $filterDefinition;
 178         }
 179
 180         /**
 181          * @inheritDoc
 182          */
 183         protected function registerFilters() {
 184                 parent::registerFilters();
 185
 186                 if (
 187                         !$this->including() &&
 188                         $this->getUser()->isLoggedIn() &&
 189                         $this->getUser()->isAllowed( 'viewmywatchlist' )
 190                 ) {
 191                         $this->registerFiltersFromDefinitions( [ $this->watchlistFilterGroupDefinition ] );
 192                         $watchlistGroup = $this->getFilterGroup( 'watchlist' );
 193                         $watchlistGroup->getFilter( 'watched' )->setAsSupersetOf(
 194                                 $watchlistGroup->getFilter( 'watchednew' )
 195                         );
 196                 }
 197
 198                 $user = $this->getUser();
 199
 200                 $significance = $this->getFilterGroup( 'significance' );
 201                 $hideMinor = $significance->getFilter( 'hideminor' );
 202                 $hideMinor->setDefault( $user->getBoolOption( 'hideminor' ) );
 203
 204                 $automated = $this->getFilterGroup( 'automated' );
 205                 $hideBots = $automated->getFilter( 'hidebots' );
 206                 $hideBots->setDefault( true );
 207
 208                 $reviewStatus = $this->getFilterGroup( 'reviewStatus' );
 209                 if ( $reviewStatus !== null ) {
 210                         // Conditional on feature being available and rights
 211                         if ( $user->getBoolOption( 'hidepatrolled' ) ) {
 212                                 $reviewStatus->setDefault( 'unpatrolled' );
 213                                 $legacyReviewStatus = $this->getFilterGroup( 'legacyReviewStatus' );
 214                                 $legacyHidePatrolled = $legacyReviewStatus->getFilter( 'hidepatrolled' );
 215                                 $legacyHidePatrolled->setDefault( true );
 216                         }
 217                 }
 218
 219                 $changeType = $this->getFilterGroup( 'changeType' );
 220                 $hideCategorization = $changeType->getFilter( 'hidecategorization' );
 221                 if ( $hideCategorization !== null ) {
 222                         // Conditional on feature being available
 223                         $hideCategorization->setDefault( $user->getBoolOption( 'hidecategorization' ) );
 224                 }
 225         }
 226
 227         /**
 228          * Get all custom filters
 229          *
 230          * @return array Map of filter URL param names to properties (msg/default)
 231          */
 232         protected function getCustomFilters() {
 233                 if ( $this->customFilters === null ) {
 234                         $this->customFilters = parent::getCustomFilters();
 235                         Hooks::run( 'SpecialRecentChangesFilters', [ $this, &$this->customFilters ], '1.23' );
 236                 }
 237
 238                 return $this->customFilters;
 239         }
 240
 241         /**
 242          * Process $par and put options found in $opts. Used when including the page.
 243          *
 244          * @param string $par
 245          * @param FormOptions $opts
 246          */
 247         public function parseParameters( $par, FormOptions $opts ) {
 248                 parent::parseParameters( $par, $opts );
 249
 250                 $bits = preg_split( '/\s*,\s*/', trim( $par ) );
 251                 foreach ( $bits as $bit ) {
 252                         if ( is_numeric( $bit ) ) {
 253                                 $opts['limit'] = $bit;
 254                         }
 255
 256                         $m = [];
 257                         if ( preg_match( '/^limit=(\d+)$/', $bit, $m ) ) {
 258                                 $opts['limit'] = $m[1];
 259                         }
 260                         if ( preg_match( '/^days=(\d+(?:\.\d+)?)$/', $bit, $m ) ) {
 261                                 $opts['days'] = $m[1];
 262                         }
 263                         if ( preg_match( '/^namespace=(.*)$/', $bit, $m ) ) {
 264                                 $opts['namespace'] = $m[1];
 265                         }
 266                         if ( preg_match( '/^tagfilter=(.*)$/', $bit, $m ) ) {
 267                                 $opts['tagfilter'] = $m[1];
 268                         }
 269                 }
 270         }
 271
 272         /**
 273          * @inheritDoc
 274          */
 275         protected function doMainQuery( $tables, $fields, $conds, $query_options,
 276                 $join_conds, FormOptions $opts
 277         ) {
 278                 $dbr = $this->getDB();
 279                 $user = $this->getUser();
 280
 281                 $rcQuery = RecentChange::getQueryInfo();
 282                 $tables = array_merge( $tables, $rcQuery['tables'] );
 283                 $fields = array_merge( $rcQuery['fields'], $fields );
 284                 $join_conds = array_merge( $join_conds, $rcQuery['joins'] );
 285
 286                 // JOIN on watchlist for users
 287                 if ( $user->isLoggedIn() && $user->isAllowed( 'viewmywatchlist' ) ) {
 288                         $tables[] = 'watchlist';
 289                         $fields[] = 'wl_user';
 290                         $fields[] = 'wl_notificationtimestamp';
 291                         $join_conds['watchlist'] = [ 'LEFT JOIN', [
 292                                 'wl_user' => $user->getId(),
 293                                 'wl_title=rc_title',
 294                                 'wl_namespace=rc_namespace'
 295                         ] ];
 296                 }
 297
 298                 // JOIN on page, used for 'last revision' filter highlight
 299                 $tables[] = 'page';
 300                 $fields[] = 'page_latest';
 301                 $join_conds['page'] = [ 'LEFT JOIN', 'rc_cur_id=page_id' ];
 302
 303                 $tagFilter = $opts['tagfilter'] ? explode( '|', $opts['tagfilter'] ) : [];
 304                 ChangeTags::modifyDisplayQuery(
 305                         $tables,
 306                         $fields,
 307                         $conds,
 308                         $join_conds,
 309                         $query_options,
 310                         $tagFilter
 311                 );
 312
 313                 if ( !$this->runMainQueryHook( $tables, $fields, $conds, $query_options, $join_conds,
 314                         $opts )
 315                 ) {
 316                         return false;
 317                 }
 318
 319                 if ( $this->areFiltersInConflict() ) {
 320                         return false;
 321                 }
 322
 323                 $orderByAndLimit = [
 324                         'ORDER BY' => 'rc_timestamp DESC',
 325                         'LIMIT' => $opts['limit']
 326                 ];
 327                 if ( in_array( 'DISTINCT', $query_options ) ) {
 328                         // ChangeTags::modifyDisplayQuery() adds DISTINCT when filtering on multiple tags.
 329                         // In order to prevent DISTINCT from causing query performance problems,
 330                         // we have to GROUP BY the primary key. This in turn requires us to add
 331                         // the primary key to the end of the ORDER BY, and the old ORDER BY to the
 332                         // start of the GROUP BY
 333                         $orderByAndLimit['ORDER BY'] = 'rc_timestamp DESC, rc_id DESC';
 334                         $orderByAndLimit['GROUP BY'] = 'rc_timestamp, rc_id';
 335                 }
 336                 // array_merge() is used intentionally here so that hooks can, should
 337                 // they so desire, override the ORDER BY / LIMIT condition(s); prior to
 338                 // MediaWiki 1.26 this used to use the plus operator instead, which meant
 339                 // that extensions weren't able to change these conditions
 340                 $query_options = array_merge( $orderByAndLimit, $query_options );
 341                 $rows = $dbr->select(
 342                         $tables,
 343                         $fields,
 344                         // rc_new is not an ENUM, but adding a redundant rc_new IN (0,1) gives mysql enough
 345                         // knowledge to use an index merge if it wants (it may use some other index though).
 346                         $conds + [ 'rc_new' => [ 0, 1 ] ],
 347                         __METHOD__,
 348                         $query_options,
 349                         $join_conds
 350                 );
 351
 352                 return $rows;
 353         }
 354
 355         protected function runMainQueryHook( &$tables, &$fields, &$conds,
 356                 &$query_options, &$join_conds, $opts
 357         ) {
 358                 return parent::runMainQueryHook( $tables, $fields, $conds, $query_options, $join_conds, $opts )
 359                         && Hooks::run(
 360                                 'SpecialRecentChangesQuery',
 361                                 [ &$conds, &$tables, &$join_conds, $opts, &$query_options, &$fields ],
 362                                 '1.23'
 363                         );
 364         }
 365
 366         protected function getDB() {
 367                 return wfGetDB( DB_REPLICA, 'recentchanges' );
 368         }
 369
 370         public function outputFeedLinks() {
 371                 $this->addFeedLinks( $this->getFeedQuery() );
 372         }
 373
 374         /**
 375          * Get URL query parameters for action=feedrecentchanges API feed of current recent changes view.
 376          *
 377          * @return array
 378          */
 379         protected function getFeedQuery() {
 380                 $query = array_filter( $this->getOptions()->getAllValues(), function ( $value ) {
 381                         // API handles empty parameters in a different way
 382                         return $value !== '';
 383                 } );
 384                 $query['action'] = 'feedrecentchanges';
 385                 $feedLimit = $this->getConfig()->get( 'FeedLimit' );
 386                 if ( $query['limit'] > $feedLimit ) {
 387                         $query['limit'] = $feedLimit;
 388                 }
 389
 390                 return $query;
 391         }
 392
 393         /**
 394          * Build and output the actual changes list.
 395          *
 396          * @param IResultWrapper $rows Database rows
 397          * @param FormOptions $opts
 398          */
 399         public function outputChangesList( $rows, $opts ) {
 400                 $limit = $opts['limit'];
 401
 402                 $showWatcherCount = $this->getConfig()->get( 'RCShowWatchingUsers' )
 403                         && $this->getUser()->getOption( 'shownumberswatching' );
 404                 $watcherCache = [];
 405
 406                 $counter = 1;
 407                 $list = ChangesList::newFromContext( $this->getContext(), $this->filterGroups );
 408                 $list->initChangesListRows( $rows );
 409
 410                 $userShowHiddenCats = $this->getUser()->getBoolOption( 'showhiddencats' );
 411                 $rclistOutput = $list->beginRecentChangesList();
 412                 if ( $this->isStructuredFilterUiEnabled() ) {
 413                         $rclistOutput .= $this->makeLegend();
 414                 }
 415
 416                 foreach ( $rows as $obj ) {
 417                         if ( $limit == 0 ) {
 418                                 break;
 419                         }
 420                         $rc = RecentChange::newFromRow( $obj );
 421
 422                         # Skip CatWatch entries for hidden cats based on user preference
 423                         if (
 424                                 $rc->getAttribute( 'rc_type' ) == RC_CATEGORIZE &&
 425                                 !$userShowHiddenCats &&
 426                                 $rc->getParam( 'hidden-cat' )
 427                         ) {
 428                                 continue;
 429                         }
 430
 431                         $rc->counter = $counter++;
 432                         # Check if the page has been updated since the last visit
 433                         if ( $this->getConfig()->get( 'ShowUpdatedMarker' )
 434                                 && !empty( $obj->wl_notificationtimestamp )
 435                         ) {
 436                                 $rc->notificationtimestamp = ( $obj->rc_timestamp >= $obj->wl_notificationtimestamp );
 437                         } else {
 438                                 $rc->notificationtimestamp = false; // Default
 439                         }
 440                         # Check the number of users watching the page
 441                         $rc->numberofWatchingusers = 0; // Default
 442                         if ( $showWatcherCount && $obj->rc_namespace >= 0 ) {
 443                                 if ( !isset( $watcherCache[$obj->rc_namespace][$obj->rc_title] ) ) {
 444                                         $watcherCache[$obj->rc_namespace][$obj->rc_title] =
 445                                                 MediaWikiServices::getInstance()->getWatchedItemStore()->countWatchers(
 446                                                         new TitleValue( (int)$obj->rc_namespace, $obj->rc_title )
 447                                                 );
 448                                 }
 449                                 $rc->numberofWatchingusers = $watcherCache[$obj->rc_namespace][$obj->rc_title];
 450                         }
 451
 452                         $changeLine = $list->recentChangesLine( $rc, !empty( $obj->wl_user ), $counter );
 453                         if ( $changeLine !== false ) {
 454                                 $rclistOutput .= $changeLine;
 455                                 --$limit;
 456                         }
 457                 }
 458                 $rclistOutput .= $list->endRecentChangesList();
 459
 460                 if ( $rows->numRows() === 0 ) {
 461                         $this->outputNoResults();
 462                         if ( !$this->including() ) {
 463                                 $this->getOutput()->setStatusCode( 404 );
 464                         }
 465                 } else {
 466                         $this->getOutput()->addHTML( $rclistOutput );
 467                 }
 468         }
 469
 470         /**
 471          * Set the text to be displayed above the changes
 472          *
 473          * @param FormOptions $opts
 474          * @param int $numRows Number of rows in the result to show after this header
 475          */
 476         public function doHeader( $opts, $numRows ) {
 477                 $this->setTopText( $opts );
 478
 479                 $defaults = $opts->getAllValues();
 480                 $nondefaults = $opts->getChangedValues();
 481
 482                 $panel = [];
 483                 if ( !$this->isStructuredFilterUiEnabled() ) {
 484                         $panel[] = $this->makeLegend();
 485                 }
 486                 $panel[] = $this->optionsPanel( $defaults, $nondefaults, $numRows );
 487                 $panel[] = '<hr />';
 488
 489                 $extraOpts = $this->getExtraOptions( $opts );
 490                 $extraOptsCount = count( $extraOpts );
 491                 $count = 0;
 492                 $submit = ' ' . Xml::submitButton( $this->msg( 'recentchanges-submit' )->text() );
 493
 494                 $out = Xml::openElement( 'table', [ 'class' => 'mw-recentchanges-table' ] );
 495                 foreach ( $extraOpts as $name => $optionRow ) {
 496                         # Add submit button to the last row only
 497                         ++$count;
 498                         $addSubmit = ( $count === $extraOptsCount ) ? $submit : '';
 499
 500                         $out .= Xml::openElement( 'tr', [ 'class' => $name . 'Form' ] );
 501                         if ( is_array( $optionRow ) ) {
 502                                 $out .= Xml::tags(
 503                                         'td',
 504                                         [ 'class' => 'mw-label mw-' . $name . '-label' ],
 505                                         $optionRow[0]
 506                                 );
 507                                 $out .= Xml::tags(
 508                                         'td',
 509                                         [ 'class' => 'mw-input' ],
 510                                         $optionRow[1] . $addSubmit
 511                                 );
 512                         } else {
 513                                 $out .= Xml::tags(
 514                                         'td',
 515                                         [ 'class' => 'mw-input', 'colspan' => 2 ],
 516                                         $optionRow . $addSubmit
 517                                 );
 518                         }
 519                         $out .= Xml::closeElement( 'tr' );
 520                 }
 521                 $out .= Xml::closeElement( 'table' );
 522
 523                 $unconsumed = $opts->getUnconsumedValues();
 524                 foreach ( $unconsumed as $key => $value ) {
 525                         $out .= Html::hidden( $key, $value );
 526                 }
 527
 528                 $t = $this->getPageTitle();
 529                 $out .= Html::hidden( 'title', $t->getPrefixedText() );
 530                 $form = Xml::tags( 'form', [ 'action' => wfScript() ], $out );
 531                 $panel[] = $form;
 532                 $panelString = implode( "\n", $panel );
 533
 534                 $rcoptions = Xml::fieldset(
 535                         $this->msg( 'recentchanges-legend' )->text(),
 536                         $panelString,
 537                         [ 'class' => 'rcoptions cloptions' ]
 538                 );
 539
 540                 // Insert a placeholder for RCFilters
 541                 if ( $this->isStructuredFilterUiEnabled() ) {
 542                         $rcfilterContainer = Html::element(
 543                                 'div',
 544                                 [ 'class' => 'rcfilters-container' ]
 545                         );
 546
 547                         $loadingContainer = Html::rawElement(
 548                                 'div',
 549                                 [ 'class' => 'rcfilters-spinner' ],
 550                                 Html::element(
 551                                         'div',
 552                                         [ 'class' => 'rcfilters-spinner-bounce' ]
 553                                 )
 554                         );
 555
 556                         // Wrap both with rcfilters-head
 557                         $this->getOutput()->addHTML(
 558                                 Html::rawElement(
 559                                         'div',
 560                                         [ 'class' => 'rcfilters-head' ],
 561                                         $rcfilterContainer . $rcoptions
 562                                 )
 563                         );
 564
 565                         // Add spinner
 566                         $this->getOutput()->addHTML( $loadingContainer );
 567                 } else {
 568                         $this->getOutput()->addHTML( $rcoptions );
 569                 }
 570
 571                 $this->setBottomText( $opts );
 572         }
 573
 574         /**
 575          * Send the text to be displayed above the options
 576          *
 577          * @param FormOptions $opts Unused
 578          */
 579         function setTopText( FormOptions $opts ) {
 580                 global $wgContLang;
 581
 582                 $message = $this->msg( 'recentchangestext' )->inContentLanguage();
 583                 if ( !$message->isDisabled() ) {
 584                         // Parse the message in this weird ugly way to preserve the ability to include interlanguage
 585                         // links in it (T172461). In the future when T66969 is resolved, perhaps we can just use
 586                         // $message->parse() instead. This code is copied from Message::parseText().
 587                         $parserOutput = MessageCache::singleton()->parse(
 588                                 $message->plain(),
 589                                 $this->getPageTitle(),
 590                                 /*linestart*/true,
 591                                 // Message class sets the interface flag to false when parsing in a language different than
 592                                 // user language, and this is wiki content language
 593                                 /*interface*/false,
 594                                 $wgContLang
 595                         );
 596                         $content = $parserOutput->getText( [
 597                                 'enableSectionEditLinks' => false,
 598                         ] );
 599                         // Add only metadata here (including the language links), text is added below
 600                         $this->getOutput()->addParserOutputMetadata( $parserOutput );
 601
 602                         $langAttributes = [
 603                                 'lang' => $wgContLang->getHtmlCode(),
 604                                 'dir' => $wgContLang->getDir(),
 605                         ];
 606
 607                         $topLinksAttributes = [ 'class' => 'mw-recentchanges-toplinks' ];
 608
 609                         if ( $this->isStructuredFilterUiEnabled() ) {
 610                                 // Check whether the widget is already collapsed or expanded
 611                                 $collapsedState = $this->getRequest()->getCookie( 'rcfilters-toplinks-collapsed-state' );
 612                                 // Note that an empty/unset cookie means collapsed, so check for !== 'expanded'
 613                                 $topLinksAttributes[ 'class' ] .= $collapsedState !== 'expanded' ?
 614                                         ' mw-recentchanges-toplinks-collapsed' : '';
 615
 616                                 $this->getOutput()->enableOOUI();
 617                                 $contentTitle = new OOUI\ButtonWidget( [
 618                                         'classes' => [ 'mw-recentchanges-toplinks-title' ],
 619                                         'label' => new OOUI\HtmlSnippet( $this->msg( 'rcfilters-other-review-tools' )->parse() ),
 620                                         'framed' => false,
 621                                         'indicator' => $collapsedState !== 'expanded' ? 'down' : 'up',
 622                                         'flags' => [ 'progressive' ],
 623                                 ] );
 624
 625                                 $contentWrapper = Html::rawElement( 'div',
 626                                         array_merge(
 627                                                 [ 'class' => 'mw-recentchanges-toplinks-content mw-collapsible-content' ],
 628                                                 $langAttributes
 629                                         ),
 630                                         $content
 631                                 );
 632                                 $content = $contentTitle . $contentWrapper;
 633                         } else {
 634                                 // Language direction should be on the top div only
 635                                 // if the title is not there. If it is there, it's
 636                                 // interface direction, and the language/dir attributes
 637                                 // should be on the content itself
 638                                 $topLinksAttributes = array_merge( $topLinksAttributes, $langAttributes );
 639                         }
 640
 641                         $this->getOutput()->addHTML(
 642                                 Html::rawElement( 'div', $topLinksAttributes, $content )
 643                         );
 644                 }
 645         }
 646
 647         /**
 648          * Get options to be displayed in a form
 649          *
 650          * @param FormOptions $opts
 651          * @return array
 652          */
 653         function getExtraOptions( $opts ) {
 654                 $opts->consumeValues( [
 655                         'namespace', 'invert', 'associated', 'tagfilter'
 656                 ] );
 657
 658                 $extraOpts = [];
 659                 $extraOpts['namespace'] = $this->namespaceFilterForm( $opts );
 660
 661                 $tagFilter = ChangeTags::buildTagFilterSelector(
 662                         $opts['tagfilter'], false, $this->getContext() );
 663                 if ( count( $tagFilter ) ) {
 664                         $extraOpts['tagfilter'] = $tagFilter;
 665                 }
 666
 667                 // Don't fire the hook for subclasses. (Or should we?)
 668                 if ( $this->getName() === 'Recentchanges' ) {
 669                         Hooks::run( 'SpecialRecentChangesPanel', [ &$extraOpts, $opts ] );
 670                 }
 671
 672                 return $extraOpts;
 673         }
 674
 675         /**
 676          * Add page-specific modules.
 677          */
 678         protected function addModules() {
 679                 parent::addModules();
 680                 $out = $this->getOutput();
 681                 $out->addModules( 'mediawiki.special.recentchanges' );
 682         }
 683
 684         /**
 685          * Get last modified date, for client caching
 686          * Don't use this if we are using the patrol feature, patrol changes don't
 687          * update the timestamp
 688          *
 689          * @return string|bool
 690          */
 691         public function checkLastModified() {
 692                 $dbr = $this->getDB();
 693                 $lastmod = $dbr->selectField( 'recentchanges', 'MAX(rc_timestamp)', '', __METHOD__ );
 694
 695                 return $lastmod;
 696         }
 697
 698         /**
 699          * Creates the choose namespace selection
 700          *
 701          * @param FormOptions $opts
 702          * @return string
 703          */
 704         protected function namespaceFilterForm( FormOptions $opts ) {
 705                 $nsSelect = Html::namespaceSelector(
 706                         [ 'selected' => $opts['namespace'], 'all' => '' ],
 707                         [ 'name' => 'namespace', 'id' => 'namespace' ]
 708                 );
 709                 $nsLabel = Xml::label( $this->msg( 'namespace' )->text(), 'namespace' );
 710                 $invert = Xml::checkLabel(
 711                         $this->msg( 'invert' )->text(), 'invert', 'nsinvert',
 712                         $opts['invert'],
 713                         [ 'title' => $this->msg( 'tooltip-invert' )->text() ]
 714                 );
 715                 $associated = Xml::checkLabel(
 716                         $this->msg( 'namespace_association' )->text(), 'associated', 'nsassociated',
 717                         $opts['associated'],
 718                         [ 'title' => $this->msg( 'tooltip-namespace_association' )->text() ]
 719                 );
 720
 721                 return [ $nsLabel, "$nsSelect $invert $associated" ];
 722         }
 723
 724         /**
 725          * Filter $rows by categories set in $opts
 726          *
 727          * @deprecated since 1.31
 728          *
 729          * @param IResultWrapper &$rows Database rows
 730          * @param FormOptions $opts
 731          */
 732         function filterByCategories( &$rows, FormOptions $opts ) {
 733                 wfDeprecated( __METHOD__, '1.31' );
 734
 735                 $categories = array_map( 'trim', explode( '|', $opts['categories'] ) );
 736
 737                 if ( !count( $categories ) ) {
 738                         return;
 739                 }
 740
 741                 # Filter categories
 742                 $cats = [];
 743                 foreach ( $categories as $cat ) {
 744                         $cat = trim( $cat );
 745                         if ( $cat == '' ) {
 746                                 continue;
 747                         }
 748                         $cats[] = $cat;
 749                 }
 750
 751                 # Filter articles
 752                 $articles = [];
 753                 $a2r = [];
 754                 $rowsarr = [];
 755                 foreach ( $rows as $k => $r ) {
 756                         $nt = Title::makeTitle( $r->rc_namespace, $r->rc_title );
 757                         $id = $nt->getArticleID();
 758                         if ( $id == 0 ) {
 759                                 continue; # Page might have been deleted...
 760                         }
 761                         if ( !in_array( $id, $articles ) ) {
 762                                 $articles[] = $id;
 763                         }
 764                         if ( !isset( $a2r[$id] ) ) {
 765                                 $a2r[$id] = [];
 766                         }
 767                         $a2r[$id][] = $k;
 768                         $rowsarr[$k] = $r;
 769                 }
 770
 771                 # Shortcut?
 772                 if ( !count( $articles ) || !count( $cats ) ) {
 773                         return;
 774                 }
 775
 776                 # Look up
 777                 $catFind = new CategoryFinder;
 778                 $catFind->seed( $articles, $cats, $opts['categories_any'] ? 'OR' : 'AND' );
 779                 $match = $catFind->run();
 780
 781                 # Filter
 782                 $newrows = [];
 783                 foreach ( $match as $id ) {
 784                         foreach ( $a2r[$id] as $rev ) {
 785                                 $k = $rev;
 786                                 $newrows[$k] = $rowsarr[$k];
 787                         }
 788                 }
 789                 $rows = new FakeResultWrapper( array_values( $newrows ) );
 790         }
 791
 792         /**
 793          * Makes change an option link which carries all the other options
 794          *
 795          * @param string $title
 796          * @param array $override Options to override
 797          * @param array $options Current options
 798          * @param bool $active Whether to show the link in bold
 799          * @return string
 800          */
 801         function makeOptionsLink( $title, $override, $options, $active = false ) {
 802                 $params = $this->convertParamsForLink( $override + $options );
 803
 804                 if ( $active ) {
 805                         $title = new HtmlArmor( '<strong>' . htmlspecialchars( $title ) . '</strong>' );
 806                 }
 807
 808                 return $this->getLinkRenderer()->makeKnownLink( $this->getPageTitle(), $title, [
 809                         'data-params' => json_encode( $override ),
 810                         'data-keys' => implode( ',', array_keys( $override ) ),
 811                 ], $params );
 812         }
 813
 814         /**
 815          * Creates the options panel.
 816          *
 817          * @param array $defaults
 818          * @param array $nondefaults
 819          * @param int $numRows Number of rows in the result to show after this header
 820          * @return string
 821          */
 822         function optionsPanel( $defaults, $nondefaults, $numRows ) {
 823                 $options = $nondefaults + $defaults;
 824
 825                 $note = '';
 826                 $msg = $this->msg( 'rclegend' );
 827                 if ( !$msg->isDisabled() ) {
 828                         $note .= '<div class="mw-rclegend">' . $msg->parse() . "</div>\n";
 829                 }
 830
 831                 $lang = $this->getLanguage();
 832                 $user = $this->getUser();
 833                 $config = $this->getConfig();
 834                 if ( $options['from'] ) {
 835                         $resetLink = $this->makeOptionsLink( $this->msg( 'rclistfromreset' ),
 836                                 [ 'from' => '' ], $nondefaults );
 837
 838                         $noteFromMsg = $this->msg( 'rcnotefrom' )
 839                                 ->numParams( $options['limit'] )
 840                                 ->params(
 841                                         $lang->userTimeAndDate( $options['from'], $user ),
 842                                         $lang->userDate( $options['from'], $user ),
 843                                         $lang->userTime( $options['from'], $user )
 844                                 )
 845                                 ->numParams( $numRows );
 846                         $note .= Html::rawElement(
 847                                         'span',
 848                                         [ 'class' => 'rcnotefrom' ],
 849                                         $noteFromMsg->parse()
 850                                 ) .
 851                                 ' ' .
 852                                 Html::rawElement(
 853                                         'span',
 854                                         [ 'class' => 'rcoptions-listfromreset' ],
 855                                         $this->msg( 'parentheses' )->rawParams( $resetLink )->parse()
 856                                 ) .
 857                                 '<br />';
 858                 }
 859
 860                 # Sort data for display and make sure it's unique after we've added user data.
 861                 $linkLimits = $config->get( 'RCLinkLimits' );
 862                 $linkLimits[] = $options['limit'];
 863                 sort( $linkLimits );
 864                 $linkLimits = array_unique( $linkLimits );
 865
 866                 $linkDays = $config->get( 'RCLinkDays' );
 867                 $linkDays[] = $options['days'];
 868                 sort( $linkDays );
 869                 $linkDays = array_unique( $linkDays );
 870
 871                 // limit links
 872                 $cl = [];
 873                 foreach ( $linkLimits as $value ) {
 874                         $cl[] = $this->makeOptionsLink( $lang->formatNum( $value ),
 875                                 [ 'limit' => $value ], $nondefaults, $value == $options['limit'] );
 876                 }
 877                 $cl = $lang->pipeList( $cl );
 878
 879                 // day links, reset 'from' to none
 880                 $dl = [];
 881                 foreach ( $linkDays as $value ) {
 882                         $dl[] = $this->makeOptionsLink( $lang->formatNum( $value ),
 883                                 [ 'days' => $value, 'from' => '' ], $nondefaults, $value == $options['days'] );
 884                 }
 885                 $dl = $lang->pipeList( $dl );
 886
 887                 $showhide = [ 'show', 'hide' ];
 888
 889                 $links = [];
 890
 891                 foreach ( $this->getLegacyShowHideFilters() as $key => $filter ) {
 892                         $msg = $filter->getShowHide();
 893                         $linkMessage = $this->msg( $msg . '-' . $showhide[1 - $options[$key]] );
 894                         // Extensions can define additional filters, but don't need to define the corresponding
 895                         // messages. If they don't exist, just fall back to 'show' and 'hide'.
 896                         if ( !$linkMessage->exists() ) {
 897                                 $linkMessage = $this->msg( $showhide[1 - $options[$key]] );
 898                         }
 899
 900                         $link = $this->makeOptionsLink( $linkMessage->text(),
 901                                 [ $key => 1 - $options[$key] ], $nondefaults );
 902
 903                         $attribs = [
 904                                 'class' => "$msg rcshowhideoption clshowhideoption",
 905                                 'data-filter-name' => $filter->getName(),
 906                         ];
 907
 908                         if ( $filter->isFeatureAvailableOnStructuredUi( $this ) ) {
 909                                 $attribs['data-feature-in-structured-ui'] = true;
 910                         }
 911
 912                         $links[] = Html::rawElement(
 913                                 'span',
 914                                 $attribs,
 915                                 $this->msg( $msg )->rawParams( $link )->parse()
 916                         );
 917                 }
 918
 919                 // show from this onward link
 920                 $timestamp = wfTimestampNow();
 921                 $now = $lang->userTimeAndDate( $timestamp, $user );
 922                 $timenow = $lang->userTime( $timestamp, $user );
 923                 $datenow = $lang->userDate( $timestamp, $user );
 924                 $pipedLinks = '<span class="rcshowhide">' . $lang->pipeList( $links ) . '</span>';
 925
 926                 $rclinks = '<span class="rclinks">' . $this->msg( 'rclinks' )->rawParams( $cl, $dl, '' )
 927                         ->parse() . '</span>';
 928
 929                 $rclistfrom = '<span class="rclistfrom">' . $this->makeOptionsLink(
 930                         $this->msg( 'rclistfrom' )->rawParams( $now, $timenow, $datenow )->parse(),
 931                         [ 'from' => $timestamp ],
 932                         $nondefaults
 933                 ) . '</span>';
 934
 935                 return "{$note}$rclinks<br />$pipedLinks<br />$rclistfrom";
 936         }
 937
 938         public function isIncludable() {
 939                 return true;
 940         }
 941
 942         protected function getCacheTTL() {
 943                 return 60 * 5;
 944         }
 945
 946         public function getDefaultLimit() {
 947                 $systemPrefValue = $this->getUser()->getIntOption( 'rclimit' );
 948                 // Prefer the RCFilters-specific preference if RCFilters is enabled
 949                 if ( $this->isStructuredFilterUiEnabled() ) {
 950                         return $this->getUser()->getIntOption( static::$limitPreferenceName, $systemPrefValue );
 951                 }
 952
 953                 // Otherwise, use the system rclimit preference value
 954                 return $systemPrefValue;
 955         }
 956 }