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