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