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