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
  26 /**
  27  * A special page that lists last changes made to the wiki
  28  *
  29  * @ingroup SpecialPage
  30  */
  31 class SpecialRecentChanges extends ChangesListSpecialPage {
  32         // @codingStandardsIgnoreStart Needed "useless" override to change parameters.
  33         public function __construct( $name = 'Recentchanges', $restriction = '' ) {
  34                 parent::__construct( $name, $restriction );
  35         }
  36         // @codingStandardsIgnoreEnd
  37
  38         /**
  39          * Main execution point
  40          *
  41          * @param string $subpage
  42          */
  43         public function execute( $subpage ) {
  44                 // Backwards-compatibility: redirect to new feed URLs
  45                 $feedFormat = $this->getRequest()->getVal( 'feed' );
  46                 if ( !$this->including() && $feedFormat ) {
  47                         $query = $this->getFeedQuery();
  48                         $query['feedformat'] = $feedFormat === 'atom' ? 'atom' : 'rss';
  49                         $this->getOutput()->redirect( wfAppendQuery( wfScript( 'api' ), $query ) );
  50
  51                         return;
  52                 }
  53
  54                 // 10 seconds server-side caching max
  55                 $this->getOutput()->setCdnMaxage( 10 );
  56                 // Check if the client has a cached version
  57                 $lastmod = $this->checkLastModified();
  58                 if ( $lastmod === false ) {
  59                         return;
  60                 }
  61
  62                 $this->addHelpLink(
  63                         '//meta.wikimedia.org/wiki/Special:MyLanguage/Help:Recent_changes',
  64                         true
  65                 );
  66                 parent::execute( $subpage );
  67         }
  68
  69         /**
  70          * Get a FormOptions object containing the default options
  71          *
  72          * @return FormOptions
  73          */
  74         public function getDefaultOptions() {
  75                 $opts = parent::getDefaultOptions();
  76                 $user = $this->getUser();
  77
  78                 $opts->add( 'days', $user->getIntOption( 'rcdays' ) );
  79                 $opts->add( 'limit', $user->getIntOption( 'rclimit' ) );
  80                 $opts->add( 'from', '' );
  81
  82                 $opts->add( 'hideminor', $user->getBoolOption( 'hideminor' ) );
  83                 $opts->add( 'hidebots', true );
  84                 $opts->add( 'hideanons', false );
  85                 $opts->add( 'hideliu', false );
  86                 $opts->add( 'hidepatrolled', $user->getBoolOption( 'hidepatrolled' ) );
  87                 $opts->add( 'hidemyself', false );
  88                 $opts->add( 'hidecategorization', $user->getBoolOption( 'hidecategorization' ) );
  89
  90                 $opts->add( 'categories', '' );
  91                 $opts->add( 'categories_any', false );
  92                 $opts->add( 'tagfilter', '' );
  93
  94                 return $opts;
  95         }
  96
  97         /**
  98          * Get all custom filters
  99          *
 100          * @return array Map of filter URL param names to properties (msg/default)
 101          */
 102         protected function getCustomFilters() {
 103                 if ( $this->customFilters === null ) {
 104                         $this->customFilters = parent::getCustomFilters();
 105                         Hooks::run( 'SpecialRecentChangesFilters', [ $this, &$this->customFilters ], '1.23' );
 106                 }
 107
 108                 return $this->customFilters;
 109         }
 110
 111         /**
 112          * Process $par and put options found in $opts. Used when including the page.
 113          *
 114          * @param string $par
 115          * @param FormOptions $opts
 116          */
 117         public function parseParameters( $par, FormOptions $opts ) {
 118                 $bits = preg_split( '/\s*,\s*/', trim( $par ) );
 119                 foreach ( $bits as $bit ) {
 120                         if ( 'hidebots' === $bit ) {
 121                                 $opts['hidebots'] = true;
 122                         }
 123                         if ( 'bots' === $bit ) {
 124                                 $opts['hidebots'] = false;
 125                         }
 126                         if ( 'hideminor' === $bit ) {
 127                                 $opts['hideminor'] = true;
 128                         }
 129                         if ( 'minor' === $bit ) {
 130                                 $opts['hideminor'] = false;
 131                         }
 132                         if ( 'hideliu' === $bit ) {
 133                                 $opts['hideliu'] = true;
 134                         }
 135                         if ( 'hidepatrolled' === $bit ) {
 136                                 $opts['hidepatrolled'] = true;
 137                         }
 138                         if ( 'hideanons' === $bit ) {
 139                                 $opts['hideanons'] = true;
 140                         }
 141                         if ( 'hidemyself' === $bit ) {
 142                                 $opts['hidemyself'] = true;
 143                         }
 144                         if ( 'hidecategorization' === $bit ) {
 145                                 $opts['hidecategorization'] = true;
 146                         }
 147
 148                         if ( is_numeric( $bit ) ) {
 149                                 $opts['limit'] = $bit;
 150                         }
 151
 152                         $m = [];
 153                         if ( preg_match( '/^limit=(\d+)$/', $bit, $m ) ) {
 154                                 $opts['limit'] = $m[1];
 155                         }
 156                         if ( preg_match( '/^days=(\d+)$/', $bit, $m ) ) {
 157                                 $opts['days'] = $m[1];
 158                         }
 159                         if ( preg_match( '/^namespace=(\d+)$/', $bit, $m ) ) {
 160                                 $opts['namespace'] = $m[1];
 161                         }
 162                         if ( preg_match( '/^tagfilter=(.*)$/', $bit, $m ) ) {
 163                                 $opts['tagfilter'] = $m[1];
 164                         }
 165                 }
 166         }
 167
 168         public function validateOptions( FormOptions $opts ) {
 169                 $opts->validateIntBounds( 'limit', 0, 5000 );
 170                 parent::validateOptions( $opts );
 171         }
 172
 173         /**
 174          * Return an array of conditions depending of options set in $opts
 175          *
 176          * @param FormOptions $opts
 177          * @return array
 178          */
 179         public function buildMainQueryConds( FormOptions $opts ) {
 180                 $dbr = $this->getDB();
 181                 $conds = parent::buildMainQueryConds( $opts );
 182
 183                 // Calculate cutoff
 184                 $cutoff_unixtime = time() - ( $opts['days'] * 86400 );
 185                 $cutoff_unixtime = $cutoff_unixtime - ( $cutoff_unixtime % 86400 );
 186                 $cutoff = $dbr->timestamp( $cutoff_unixtime );
 187
 188                 $fromValid = preg_match( '/^[0-9]{14}$/', $opts['from'] );
 189                 if ( $fromValid && $opts['from'] > wfTimestamp( TS_MW, $cutoff ) ) {
 190                         $cutoff = $dbr->timestamp( $opts['from'] );
 191                 } else {
 192                         $opts->reset( 'from' );
 193                 }
 194
 195                 $conds[] = 'rc_timestamp >= ' . $dbr->addQuotes( $cutoff );
 196
 197                 return $conds;
 198         }
 199
 200         /**
 201          * Process the query
 202          *
 203          * @param array $conds
 204          * @param FormOptions $opts
 205          * @return bool|ResultWrapper Result or false (for Recentchangeslinked only)
 206          */
 207         public function doMainQuery( $conds, $opts ) {
 208                 $dbr = $this->getDB();
 209                 $user = $this->getUser();
 210
 211                 $tables = [ 'recentchanges' ];
 212                 $fields = RecentChange::selectFields();
 213                 $query_options = [];
 214                 $join_conds = [];
 215
 216                 // JOIN on watchlist for users
 217                 if ( $user->getId() && $user->isAllowed( 'viewmywatchlist' ) ) {
 218                         $tables[] = 'watchlist';
 219                         $fields[] = 'wl_user';
 220                         $fields[] = 'wl_notificationtimestamp';
 221                         $join_conds['watchlist'] = [ 'LEFT JOIN', [
 222                                 'wl_user' => $user->getId(),
 223                                 'wl_title=rc_title',
 224                                 'wl_namespace=rc_namespace'
 225                         ] ];
 226                 }
 227
 228                 if ( $user->isAllowed( 'rollback' ) ) {
 229                         $tables[] = 'page';
 230                         $fields[] = 'page_latest';
 231                         $join_conds['page'] = [ 'LEFT JOIN', 'rc_cur_id=page_id' ];
 232                 }
 233
 234                 ChangeTags::modifyDisplayQuery(
 235                         $tables,
 236                         $fields,
 237                         $conds,
 238                         $join_conds,
 239                         $query_options,
 240                         $opts['tagfilter']
 241                 );
 242
 243                 if ( !$this->runMainQueryHook( $tables, $fields, $conds, $query_options, $join_conds,
 244                         $opts )
 245                 ) {
 246                         return false;
 247                 }
 248
 249                 // array_merge() is used intentionally here so that hooks can, should
 250                 // they so desire, override the ORDER BY / LIMIT condition(s); prior to
 251                 // MediaWiki 1.26 this used to use the plus operator instead, which meant
 252                 // that extensions weren't able to change these conditions
 253                 $query_options = array_merge( [
 254                         'ORDER BY' => 'rc_timestamp DESC',
 255                         'LIMIT' => $opts['limit'] ], $query_options );
 256                 $rows = $dbr->select(
 257                         $tables,
 258                         $fields,
 259                         // rc_new is not an ENUM, but adding a redundant rc_new IN (0,1) gives mysql enough
 260                         // knowledge to use an index merge if it wants (it may use some other index though).
 261                         $conds + [ 'rc_new' => [ 0, 1 ] ],
 262                         __METHOD__,
 263                         $query_options,
 264                         $join_conds
 265                 );
 266
 267                 // Build the final data
 268                 if ( $this->getConfig()->get( 'AllowCategorizedRecentChanges' ) ) {
 269                         $this->filterByCategories( $rows, $opts );
 270                 }
 271
 272                 return $rows;
 273         }
 274
 275         protected function runMainQueryHook( &$tables, &$fields, &$conds,
 276                 &$query_options, &$join_conds, $opts
 277         ) {
 278                 return parent::runMainQueryHook( $tables, $fields, $conds, $query_options, $join_conds, $opts )
 279                         && Hooks::run(
 280                                 'SpecialRecentChangesQuery',
 281                                 [ &$conds, &$tables, &$join_conds, $opts, &$query_options, &$fields ],
 282                                 '1.23'
 283                         );
 284         }
 285
 286         protected function getDB() {
 287                 return wfGetDB( DB_REPLICA, 'recentchanges' );
 288         }
 289
 290         public function outputFeedLinks() {
 291                 $this->addFeedLinks( $this->getFeedQuery() );
 292         }
 293
 294         /**
 295          * Get URL query parameters for action=feedrecentchanges API feed of current recent changes view.
 296          *
 297          * @return array
 298          */
 299         protected function getFeedQuery() {
 300                 $query = array_filter( $this->getOptions()->getAllValues(), function ( $value ) {
 301                         // API handles empty parameters in a different way
 302                         return $value !== '';
 303                 } );
 304                 $query['action'] = 'feedrecentchanges';
 305                 $feedLimit = $this->getConfig()->get( 'FeedLimit' );
 306                 if ( $query['limit'] > $feedLimit ) {
 307                         $query['limit'] = $feedLimit;
 308                 }
 309
 310                 return $query;
 311         }
 312
 313         /**
 314          * Build and output the actual changes list.
 315          *
 316          * @param ResultWrapper $rows Database rows
 317          * @param FormOptions $opts
 318          */
 319         public function outputChangesList( $rows, $opts ) {
 320                 $limit = $opts['limit'];
 321
 322                 $showWatcherCount = $this->getConfig()->get( 'RCShowWatchingUsers' )
 323                         && $this->getUser()->getOption( 'shownumberswatching' );
 324                 $watcherCache = [];
 325
 326                 $dbr = $this->getDB();
 327
 328                 $counter = 1;
 329                 $list = ChangesList::newFromContext( $this->getContext() );
 330                 $list->initChangesListRows( $rows );
 331
 332                 $userShowHiddenCats = $this->getUser()->getBoolOption( 'showhiddencats' );
 333                 $rclistOutput = $list->beginRecentChangesList();
 334                 foreach ( $rows as $obj ) {
 335                         if ( $limit == 0 ) {
 336                                 break;
 337                         }
 338                         $rc = RecentChange::newFromRow( $obj );
 339
 340                         # Skip CatWatch entries for hidden cats based on user preference
 341                         if (
 342                                 $rc->getAttribute( 'rc_type' ) == RC_CATEGORIZE &&
 343                                 !$userShowHiddenCats &&
 344                                 $rc->getParam( 'hidden-cat' )
 345                         ) {
 346                                 continue;
 347                         }
 348
 349                         $rc->counter = $counter++;
 350                         # Check if the page has been updated since the last visit
 351                         if ( $this->getConfig()->get( 'ShowUpdatedMarker' )
 352                                 && !empty( $obj->wl_notificationtimestamp )
 353                         ) {
 354                                 $rc->notificationtimestamp = ( $obj->rc_timestamp >= $obj->wl_notificationtimestamp );
 355                         } else {
 356                                 $rc->notificationtimestamp = false; // Default
 357                         }
 358                         # Check the number of users watching the page
 359                         $rc->numberofWatchingusers = 0; // Default
 360                         if ( $showWatcherCount && $obj->rc_namespace >= 0 ) {
 361                                 if ( !isset( $watcherCache[$obj->rc_namespace][$obj->rc_title] ) ) {
 362                                         $watcherCache[$obj->rc_namespace][$obj->rc_title] =
 363                                                 MediaWikiServices::getInstance()->getWatchedItemStore()->countWatchers(
 364                                                         new TitleValue( (int)$obj->rc_namespace, $obj->rc_title )
 365                                                 );
 366                                 }
 367                                 $rc->numberofWatchingusers = $watcherCache[$obj->rc_namespace][$obj->rc_title];
 368                         }
 369
 370                         $changeLine = $list->recentChangesLine( $rc, !empty( $obj->wl_user ), $counter );
 371                         if ( $changeLine !== false ) {
 372                                 $rclistOutput .= $changeLine;
 373                                 --$limit;
 374                         }
 375                 }
 376                 $rclistOutput .= $list->endRecentChangesList();
 377
 378                 if ( $rows->numRows() === 0 ) {
 379                         $this->getOutput()->addHTML(
 380                                 '<div class="mw-changeslist-empty">' .
 381                                 $this->msg( 'recentchanges-noresult' )->parse() .
 382                                 '</div>'
 383                         );
 384                         if ( !$this->including() ) {
 385                                 $this->getOutput()->setStatusCode( 404 );
 386                         }
 387                 } else {
 388                         $this->getOutput()->addHTML( $rclistOutput );
 389                 }
 390         }
 391
 392         /**
 393          * Set the text to be displayed above the changes
 394          *
 395          * @param FormOptions $opts
 396          * @param int $numRows Number of rows in the result to show after this header
 397          */
 398         public function doHeader( $opts, $numRows ) {
 399                 $this->setTopText( $opts );
 400
 401                 $defaults = $opts->getAllValues();
 402                 $nondefaults = $opts->getChangedValues();
 403
 404                 $panel = [];
 405                 $panel[] = $this->makeLegend();
 406                 $panel[] = $this->optionsPanel( $defaults, $nondefaults, $numRows );
 407                 $panel[] = '<hr />';
 408
 409                 $extraOpts = $this->getExtraOptions( $opts );
 410                 $extraOptsCount = count( $extraOpts );
 411                 $count = 0;
 412                 $submit = ' ' . Xml::submitButton( $this->msg( 'recentchanges-submit' )->text() );
 413
 414                 $out = Xml::openElement( 'table', [ 'class' => 'mw-recentchanges-table' ] );
 415                 foreach ( $extraOpts as $name => $optionRow ) {
 416                         # Add submit button to the last row only
 417                         ++$count;
 418                         $addSubmit = ( $count === $extraOptsCount ) ? $submit : '';
 419
 420                         $out .= Xml::openElement( 'tr' );
 421                         if ( is_array( $optionRow ) ) {
 422                                 $out .= Xml::tags(
 423                                         'td',
 424                                         [ 'class' => 'mw-label mw-' . $name . '-label' ],
 425                                         $optionRow[0]
 426                                 );
 427                                 $out .= Xml::tags(
 428                                         'td',
 429                                         [ 'class' => 'mw-input' ],
 430                                         $optionRow[1] . $addSubmit
 431                                 );
 432                         } else {
 433                                 $out .= Xml::tags(
 434                                         'td',
 435                                         [ 'class' => 'mw-input', 'colspan' => 2 ],
 436                                         $optionRow . $addSubmit
 437                                 );
 438                         }
 439                         $out .= Xml::closeElement( 'tr' );
 440                 }
 441                 $out .= Xml::closeElement( 'table' );
 442
 443                 $unconsumed = $opts->getUnconsumedValues();
 444                 foreach ( $unconsumed as $key => $value ) {
 445                         $out .= Html::hidden( $key, $value );
 446                 }
 447
 448                 $t = $this->getPageTitle();
 449                 $out .= Html::hidden( 'title', $t->getPrefixedText() );
 450                 $form = Xml::tags( 'form', [ 'action' => wfScript() ], $out );
 451                 $panel[] = $form;
 452                 $panelString = implode( "\n", $panel );
 453
 454                 $this->getOutput()->addHTML(
 455                         Xml::fieldset(
 456                                 $this->msg( 'recentchanges-legend' )->text(),
 457                                 $panelString,
 458                                 [ 'class' => 'rcoptions' ]
 459                         )
 460                 );
 461
 462                 $this->setBottomText( $opts );
 463         }
 464
 465         /**
 466          * Send the text to be displayed above the options
 467          *
 468          * @param FormOptions $opts Unused
 469          */
 470         function setTopText( FormOptions $opts ) {
 471                 global $wgContLang;
 472
 473                 $message = $this->msg( 'recentchangestext' )->inContentLanguage();
 474                 if ( !$message->isDisabled() ) {
 475                         $this->getOutput()->addWikiText(
 476                                 Html::rawElement( 'div',
 477                                         [ 'lang' => $wgContLang->getHtmlCode(), 'dir' => $wgContLang->getDir() ],
 478                                         "\n" . $message->plain() . "\n"
 479                                 ),
 480                                 /* $lineStart */ true,
 481                                 /* $interface */ false
 482                         );
 483                 }
 484         }
 485
 486         /**
 487          * Get options to be displayed in a form
 488          *
 489          * @param FormOptions $opts
 490          * @return array
 491          */
 492         function getExtraOptions( $opts ) {
 493                 $opts->consumeValues( [
 494                         'namespace', 'invert', 'associated', 'tagfilter', 'categories', 'categories_any'
 495                 ] );
 496
 497                 $extraOpts = [];
 498                 $extraOpts['namespace'] = $this->namespaceFilterForm( $opts );
 499
 500                 if ( $this->getConfig()->get( 'AllowCategorizedRecentChanges' ) ) {
 501                         $extraOpts['category'] = $this->categoryFilterForm( $opts );
 502                 }
 503
 504                 $tagFilter = ChangeTags::buildTagFilterSelector( $opts['tagfilter'] );
 505                 if ( count( $tagFilter ) ) {
 506                         $extraOpts['tagfilter'] = $tagFilter;
 507                 }
 508
 509                 // Don't fire the hook for subclasses. (Or should we?)
 510                 if ( $this->getName() === 'Recentchanges' ) {
 511                         Hooks::run( 'SpecialRecentChangesPanel', [ &$extraOpts, $opts ] );
 512                 }
 513
 514                 return $extraOpts;
 515         }
 516
 517         /**
 518          * Add page-specific modules.
 519          */
 520         protected function addModules() {
 521                 parent::addModules();
 522                 $out = $this->getOutput();
 523                 $out->addModules( 'mediawiki.special.recentchanges' );
 524         }
 525
 526         /**
 527          * Get last modified date, for client caching
 528          * Don't use this if we are using the patrol feature, patrol changes don't
 529          * update the timestamp
 530          *
 531          * @return string|bool
 532          */
 533         public function checkLastModified() {
 534                 $dbr = $this->getDB();
 535                 $lastmod = $dbr->selectField( 'recentchanges', 'MAX(rc_timestamp)', false, __METHOD__ );
 536
 537                 return $lastmod;
 538         }
 539
 540         /**
 541          * Creates the choose namespace selection
 542          *
 543          * @param FormOptions $opts
 544          * @return string
 545          */
 546         protected function namespaceFilterForm( FormOptions $opts ) {
 547                 $nsSelect = Html::namespaceSelector(
 548                         [ 'selected' => $opts['namespace'], 'all' => '' ],
 549                         [ 'name' => 'namespace', 'id' => 'namespace' ]
 550                 );
 551                 $nsLabel = Xml::label( $this->msg( 'namespace' )->text(), 'namespace' );
 552                 $invert = Xml::checkLabel(
 553                         $this->msg( 'invert' )->text(), 'invert', 'nsinvert',
 554                         $opts['invert'],
 555                         [ 'title' => $this->msg( 'tooltip-invert' )->text() ]
 556                 );
 557                 $associated = Xml::checkLabel(
 558                         $this->msg( 'namespace_association' )->text(), 'associated', 'nsassociated',
 559                         $opts['associated'],
 560                         [ 'title' => $this->msg( 'tooltip-namespace_association' )->text() ]
 561                 );
 562
 563                 return [ $nsLabel, "$nsSelect $invert $associated" ];
 564         }
 565
 566         /**
 567          * Create an input to filter changes by categories
 568          *
 569          * @param FormOptions $opts
 570          * @return array
 571          */
 572         protected function categoryFilterForm( FormOptions $opts ) {
 573                 list( $label, $input ) = Xml::inputLabelSep( $this->msg( 'rc_categories' )->text(),
 574                         'categories', 'mw-categories', false, $opts['categories'] );
 575
 576                 $input .= ' ' . Xml::checkLabel( $this->msg( 'rc_categories_any' )->text(),
 577                         'categories_any', 'mw-categories_any', $opts['categories_any'] );
 578
 579                 return [ $label, $input ];
 580         }
 581
 582         /**
 583          * Filter $rows by categories set in $opts
 584          *
 585          * @param ResultWrapper $rows Database rows
 586          * @param FormOptions $opts
 587          */
 588         function filterByCategories( &$rows, FormOptions $opts ) {
 589                 $categories = array_map( 'trim', explode( '|', $opts['categories'] ) );
 590
 591                 if ( !count( $categories ) ) {
 592                         return;
 593                 }
 594
 595                 # Filter categories
 596                 $cats = [];
 597                 foreach ( $categories as $cat ) {
 598                         $cat = trim( $cat );
 599                         if ( $cat == '' ) {
 600                                 continue;
 601                         }
 602                         $cats[] = $cat;
 603                 }
 604
 605                 # Filter articles
 606                 $articles = [];
 607                 $a2r = [];
 608                 $rowsarr = [];
 609                 foreach ( $rows as $k => $r ) {
 610                         $nt = Title::makeTitle( $r->rc_namespace, $r->rc_title );
 611                         $id = $nt->getArticleID();
 612                         if ( $id == 0 ) {
 613                                 continue; # Page might have been deleted...
 614                         }
 615                         if ( !in_array( $id, $articles ) ) {
 616                                 $articles[] = $id;
 617                         }
 618                         if ( !isset( $a2r[$id] ) ) {
 619                                 $a2r[$id] = [];
 620                         }
 621                         $a2r[$id][] = $k;
 622                         $rowsarr[$k] = $r;
 623                 }
 624
 625                 # Shortcut?
 626                 if ( !count( $articles ) || !count( $cats ) ) {
 627                         return;
 628                 }
 629
 630                 # Look up
 631                 $catFind = new CategoryFinder;
 632                 $catFind->seed( $articles, $cats, $opts['categories_any'] ? 'OR' : 'AND' );
 633                 $match = $catFind->run();
 634
 635                 # Filter
 636                 $newrows = [];
 637                 foreach ( $match as $id ) {
 638                         foreach ( $a2r[$id] as $rev ) {
 639                                 $k = $rev;
 640                                 $newrows[$k] = $rowsarr[$k];
 641                         }
 642                 }
 643                 $rows = $newrows;
 644         }
 645
 646         /**
 647          * Makes change an option link which carries all the other options
 648          *
 649          * @param string $title Title
 650          * @param array $override Options to override
 651          * @param array $options Current options
 652          * @param bool $active Whether to show the link in bold
 653          * @return string
 654          */
 655         function makeOptionsLink( $title, $override, $options, $active = false ) {
 656                 $params = $override + $options;
 657
 658                 // Bug 36524: false values have be converted to "0" otherwise
 659                 // wfArrayToCgi() will omit it them.
 660                 foreach ( $params as &$value ) {
 661                         if ( $value === false ) {
 662                                 $value = '0';
 663                         }
 664                 }
 665                 unset( $value );
 666
 667                 $text = htmlspecialchars( $title );
 668                 if ( $active ) {
 669                         $text = '<strong>' . $text . '</strong>';
 670                 }
 671
 672                 return Linker::linkKnown( $this->getPageTitle(), $text, [], $params );
 673         }
 674
 675         /**
 676          * Creates the options panel.
 677          *
 678          * @param array $defaults
 679          * @param array $nondefaults
 680          * @param int $numRows Number of rows in the result to show after this header
 681          * @return string
 682          */
 683         function optionsPanel( $defaults, $nondefaults, $numRows ) {
 684                 $options = $nondefaults + $defaults;
 685
 686                 $note = '';
 687                 $msg = $this->msg( 'rclegend' );
 688                 if ( !$msg->isDisabled() ) {
 689                         $note .= '<div class="mw-rclegend">' . $msg->parse() . "</div>\n";
 690                 }
 691
 692                 $lang = $this->getLanguage();
 693                 $user = $this->getUser();
 694                 $config = $this->getConfig();
 695                 if ( $options['from'] ) {
 696                         $note .= $this->msg( 'rcnotefrom' )
 697                                 ->numParams( $options['limit'] )
 698                                 ->params(
 699                                         $lang->userTimeAndDate( $options['from'], $user ),
 700                                         $lang->userDate( $options['from'], $user ),
 701                                         $lang->userTime( $options['from'], $user )
 702                                 )
 703                                 ->numParams( $numRows )
 704                                 ->parse() . '<br />';
 705                 }
 706
 707                 # Sort data for display and make sure it's unique after we've added user data.
 708                 $linkLimits = $config->get( 'RCLinkLimits' );
 709                 $linkLimits[] = $options['limit'];
 710                 sort( $linkLimits );
 711                 $linkLimits = array_unique( $linkLimits );
 712
 713                 $linkDays = $config->get( 'RCLinkDays' );
 714                 $linkDays[] = $options['days'];
 715                 sort( $linkDays );
 716                 $linkDays = array_unique( $linkDays );
 717
 718                 // limit links
 719                 $cl = [];
 720                 foreach ( $linkLimits as $value ) {
 721                         $cl[] = $this->makeOptionsLink( $lang->formatNum( $value ),
 722                                 [ 'limit' => $value ], $nondefaults, $value == $options['limit'] );
 723                 }
 724                 $cl = $lang->pipeList( $cl );
 725
 726                 // day links, reset 'from' to none
 727                 $dl = [];
 728                 foreach ( $linkDays as $value ) {
 729                         $dl[] = $this->makeOptionsLink( $lang->formatNum( $value ),
 730                                 [ 'days' => $value, 'from' => '' ], $nondefaults, $value == $options['days'] );
 731                 }
 732                 $dl = $lang->pipeList( $dl );
 733
 734                 // show/hide links
 735                 $filters = [
 736                         'hideminor' => 'rcshowhideminor',
 737                         'hidebots' => 'rcshowhidebots',
 738                         'hideanons' => 'rcshowhideanons',
 739                         'hideliu' => 'rcshowhideliu',
 740                         'hidepatrolled' => 'rcshowhidepatr',
 741                         'hidemyself' => 'rcshowhidemine'
 742                 ];
 743
 744                 if ( $config->get( 'RCWatchCategoryMembership' ) ) {
 745                         $filters['hidecategorization'] = 'rcshowhidecategorization';
 746                 }
 747
 748                 $showhide = [ 'show', 'hide' ];
 749
 750                 foreach ( $this->getRenderableCustomFilters( $this->getCustomFilters() ) as $key => $params ) {
 751                         $filters[$key] = $params['msg'];
 752                 }
 753
 754                 // Disable some if needed
 755                 if ( !$user->useRCPatrol() ) {
 756                         unset( $filters['hidepatrolled'] );
 757                 }
 758
 759                 $links = [];
 760                 foreach ( $filters as $key => $msg ) {
 761                         // The following messages are used here:
 762                         // rcshowhideminor-show, rcshowhideminor-hide, rcshowhidebots-show, rcshowhidebots-hide,
 763                         // rcshowhideanons-show, rcshowhideanons-hide, rcshowhideliu-show, rcshowhideliu-hide,
 764                         // rcshowhidepatr-show, rcshowhidepatr-hide, rcshowhidemine-show, rcshowhidemine-hide,
 765                         // rcshowhidecategorization-show, rcshowhidecategorization-hide.
 766                         $linkMessage = $this->msg( $msg . '-' . $showhide[1 - $options[$key]] );
 767                         // Extensions can define additional filters, but don't need to define the corresponding
 768                         // messages. If they don't exist, just fall back to 'show' and 'hide'.
 769                         if ( !$linkMessage->exists() ) {
 770                                 $linkMessage = $this->msg( $showhide[1 - $options[$key]] );
 771                         }
 772
 773                         $link = $this->makeOptionsLink( $linkMessage->text(),
 774                                 [ $key => 1 - $options[$key] ], $nondefaults );
 775                         $links[] = "<span class=\"$msg rcshowhideoption\">"
 776                                 . $this->msg( $msg )->rawParams( $link )->escaped() . '</span>';
 777                 }
 778
 779                 // show from this onward link
 780                 $timestamp = wfTimestampNow();
 781                 $now = $lang->userTimeAndDate( $timestamp, $user );
 782                 $timenow = $lang->userTime( $timestamp, $user );
 783                 $datenow = $lang->userDate( $timestamp, $user );
 784                 $pipedLinks = '<span class="rcshowhide">' . $lang->pipeList( $links ) . '</span>';
 785
 786                 $rclinks = '<span class="rclinks">' . $this->msg( 'rclinks' )->rawParams( $cl, $dl, $pipedLinks )
 787                         ->parse() . '</span>';
 788
 789                 $rclistfrom = '<span class="rclistfrom">' . $this->makeOptionsLink(
 790                         $this->msg( 'rclistfrom' )->rawParams( $now, $timenow, $datenow )->parse(),
 791                         [ 'from' => $timestamp ],
 792                         $nondefaults
 793                 ) . '</span>';
 794
 795                 return "{$note}$rclinks<br />$rclistfrom";
 796         }
 797
 798         public function isIncludable() {
 799                 return true;
 800         }
 801
 802         protected function getCacheTTL() {
 803                 return 60 * 5;
 804         }
 805
 806 }