includes/specials/SpecialRecentchanges.php

   1 <?php
   2
   3 /**
   4  * Implements Special:Recentchanges
   5  * @ingroup SpecialPage
   6  */
   7 class SpecialRecentChanges extends SpecialPage {
   8         public function __construct() {
   9                 parent::__construct( 'Recentchanges' );
  10                 $this->includable( true );
  11         }
  12
  13         /**
  14          * Get a FormOptions object containing the default options
  15          *
  16          * @return FormOptions
  17          */
  18         public function getDefaultOptions() {
  19                 global $wgUser;
  20                 $opts = new FormOptions();
  21
  22                 $opts->add( 'days',  (int)$wgUser->getOption( 'rcdays' ) );
  23                 $opts->add( 'limit', (int)$wgUser->getOption( 'rclimit' ) );
  24                 $opts->add( 'from', '' );
  25
  26                 $opts->add( 'hideminor',     (bool)$wgUser->getOption( 'hideminor' ) );
  27                 $opts->add( 'hidebots',      true  );
  28                 $opts->add( 'hideanons',     false );
  29                 $opts->add( 'hideliu',       false );
  30                 $opts->add( 'hidepatrolled', false );
  31                 $opts->add( 'hidemyself',    false );
  32
  33                 $opts->add( 'namespace', '', FormOptions::INTNULL );
  34                 $opts->add( 'invert', false );
  35
  36                 $opts->add( 'categories', '' );
  37                 $opts->add( 'categories_any', false );
  38                 return $opts;
  39         }
  40
  41         /**
  42          * Get a FormOptions object with options as specified by the user
  43          *
  44          * @return FormOptions
  45          */
  46         public function setup( $parameters ) {
  47                 global $wgRequest;
  48
  49                 $opts = $this->getDefaultOptions();
  50                 $opts->fetchValuesFromRequest( $wgRequest );
  51
  52                 // Give precedence to subpage syntax
  53                 if ( $parameters !== null ) {
  54                         $this->parseParameters( $parameters, $opts );
  55                 }
  56
  57                 $opts->validateIntBounds( 'limit', 0, 5000 );
  58                 return $opts;
  59         }
  60
  61         /**
  62          * Get a FormOptions object sepcific for feed requests
  63          *
  64          * @return FormOptions
  65          */
  66         public function feedSetup() {
  67                 global $wgFeedLimit, $wgRequest;
  68                 $opts = $this->getDefaultOptions();
  69                 $opts->fetchValuesFromRequest( $wgRequest, array( 'days', 'limit', 'hideminor' ) );
  70                 $opts->validateIntBounds( 'limit', 0, $wgFeedLimit );
  71                 return $opts;
  72         }
  73
  74         /**
  75          * Main execution point
  76          *
  77          * @param $parameters string
  78          */
  79         public function execute( $parameters ) {
  80                 global $wgRequest, $wgOut;
  81                 $feedFormat = $wgRequest->getVal( 'feed' );
  82
  83                 # 10 seconds server-side caching max
  84                 $wgOut->setSquidMaxage( 10 );
  85
  86                 $lastmod = $this->checkLastModified( $feedFormat );
  87                 if( $lastmod === false ){
  88                         return;
  89                 }
  90
  91                 $opts = $feedFormat ? $this->feedSetup() : $this->setup( $parameters );
  92                 $this->setHeaders();
  93                 $this->outputHeader();
  94
  95                 // Fetch results, prepare a batch link existence check query
  96                 $rows = array();
  97                 $batch = new LinkBatch;
  98                 $conds = $this->buildMainQueryConds( $opts );
  99                 $res = $this->doMainQuery( $conds, $opts );
 100                 if( $res === false ){
 101                         $this->doHeader( $opts );
 102                         return;
 103                 }
 104                 $dbr = wfGetDB( DB_SLAVE );
 105                 while( $row = $dbr->fetchObject( $res ) ){
 106                         $rows[] = $row;
 107                         if ( !$feedFormat ) {
 108                                 // User page and talk links
 109                                 $batch->add( NS_USER, $row->rc_user_text  );
 110                                 $batch->add( NS_USER_TALK, $row->rc_user_text  );
 111                         }
 112
 113                 }
 114                 $dbr->freeResult( $res );
 115
 116                 if ( $feedFormat ) {
 117                         list( $feed, $feedObj ) = $this->getFeedObject( $feedFormat );
 118                         $feed->execute( $feedObj, $rows, $opts['limit'], $opts['hideminor'], $lastmod );
 119                 } else {
 120                         $batch->execute();
 121                         $this->webOutput( $rows, $opts );
 122                 }
 123
 124         }
 125
 126         /**
 127          * Return an array with a ChangesFeed object and ChannelFeed object
 128          *
 129          * @return array
 130          */
 131         public function getFeedObject( $feedFormat ){
 132                 $feed = new ChangesFeed( $feedFormat, 'rcfeed' );
 133                 $feedObj = $feed->getFeedObject(
 134                         wfMsgForContent( 'recentchanges' ),
 135                         wfMsgForContent( 'recentchanges-feed-description' )
 136                 );
 137                 return array( $feed, $feedObj );
 138         }
 139
 140         /**
 141          * Process $par and put options found if $opts
 142          * Mainly used when including the page
 143          *
 144          * @param $par String
 145          * @param $opts FormOptions
 146          */
 147         public function parseParameters( $par, FormOptions $opts ) {
 148                 $bits = preg_split( '/\s*,\s*/', trim( $par ) );
 149                 foreach ( $bits as $bit ) {
 150                         if ( 'hidebots' === $bit ) $opts['hidebots'] = true;
 151                         if ( 'bots' === $bit ) $opts['hidebots'] = false;
 152                         if ( 'hideminor' === $bit ) $opts['hideminor'] = true;
 153                         if ( 'minor' === $bit ) $opts['hideminor'] = false;
 154                         if ( 'hideliu' === $bit ) $opts['hideliu'] = true;
 155                         if ( 'hidepatrolled' === $bit ) $opts['hidepatrolled'] = true;
 156                         if ( 'hideanons' === $bit ) $opts['hideanons'] = true;
 157                         if ( 'hidemyself' === $bit ) $opts['hidemyself'] = true;
 158
 159                         if ( is_numeric( $bit ) ) $opts['limit'] =  $bit;
 160
 161                         $m = array();
 162                         if ( preg_match( '/^limit=(\d+)$/', $bit, $m ) ) $opts['limit'] = $m[1];
 163                         if ( preg_match( '/^days=(\d+)$/', $bit, $m ) ) $opts['days'] = $m[1];
 164                 }
 165         }
 166
 167         /**
 168          * Get last modified date, for client caching
 169          * Don't use this if we are using the patrol feature, patrol changes don't
 170          * update the timestamp
 171          *
 172          * @param $feedFormat String
 173          * @return int or false
 174          */
 175         public function checkLastModified( $feedFormat ) {
 176                 global $wgUseRCPatrol, $wgOut;
 177                 $dbr = wfGetDB( DB_SLAVE );
 178                 $lastmod = $dbr->selectField( 'recentchanges', 'MAX(rc_timestamp)', false, __FUNCTION__ );
 179                 if ( $feedFormat || !$wgUseRCPatrol ) {
 180                         if( $lastmod && $wgOut->checkLastModified( $lastmod ) ){
 181                                 # Client cache fresh and headers sent, nothing more to do.
 182                                 return false;
 183                         }
 184                 }
 185                 return $lastmod;
 186         }
 187
 188         /**
 189          * Return an array of conditions depending of options set in $opts
 190          *
 191          * @param $opts FormOptions
 192          * @return array
 193          */
 194         public function buildMainQueryConds( FormOptions $opts ) {
 195                 global $wgUser;
 196
 197                 $dbr = wfGetDB( DB_SLAVE );
 198                 $conds = array();
 199
 200                 # It makes no sense to hide both anons and logged-in users
 201                 # Where this occurs, force anons to be shown
 202                 $forcebot = false;
 203                 if( $opts['hideanons'] && $opts['hideliu'] ){
 204                         # Check if the user wants to show bots only
 205                         if( $opts['hidebots'] ){
 206                                 $opts['hideanons'] = false;
 207                         } else {
 208                                 $forcebot = true;
 209                                 $opts['hidebots'] = false;
 210                         }
 211                 }
 212
 213                 // Calculate cutoff
 214                 $cutoff_unixtime = time() - ( $opts['days'] * 86400 );
 215                 $cutoff_unixtime = $cutoff_unixtime - ($cutoff_unixtime % 86400);
 216                 $cutoff = $dbr->timestamp( $cutoff_unixtime );
 217
 218                 $fromValid = preg_match('/^[0-9]{14}$/', $opts['from']);
 219                 if( $fromValid && $opts['from'] > wfTimestamp(TS_MW,$cutoff) ) {
 220                         $cutoff = $dbr->timestamp($opts['from']);
 221                 } else {
 222                         $opts->reset( 'from' );
 223                 }
 224
 225                 $conds[] = 'rc_timestamp >= ' . $dbr->addQuotes( $cutoff );
 226
 227
 228                 $hidePatrol = $wgUser->useRCPatrol() && $opts['hidepatrolled'];
 229                 $hideLoggedInUsers = $opts['hideliu'] && !$forcebot;
 230                 $hideAnonymousUsers = $opts['hideanons'] && !$forcebot;
 231
 232                 if ( $opts['hideminor'] )  $conds['rc_minor'] = 0;
 233                 if ( $opts['hidebots'] )   $conds['rc_bot'] = 0;
 234                 if ( $hidePatrol )         $conds['rc_patrolled'] = 0;
 235                 if ( $forcebot )           $conds['rc_bot'] = 1;
 236                 if ( $hideLoggedInUsers )  $conds[] = 'rc_user = 0';
 237                 if ( $hideAnonymousUsers ) $conds[] = 'rc_user != 0';
 238
 239                 if( $opts['hidemyself'] ) {
 240                         if( $wgUser->getId() ) {
 241                                 $conds[] = 'rc_user != ' . $dbr->addQuotes( $wgUser->getId() );
 242                         } else {
 243                                 $conds[] = 'rc_user_text != ' . $dbr->addQuotes( $wgUser->getName() );
 244                         }
 245                 }
 246
 247                 # Namespace filtering
 248                 if ( $opts['namespace'] !== '' ) {
 249                         if ( !$opts['invert'] ) {
 250                                 $conds[] = 'rc_namespace = ' . $dbr->addQuotes( $opts['namespace'] );
 251                         } else {
 252                                 $conds[] = 'rc_namespace != ' . $dbr->addQuotes( $opts['namespace'] );
 253                         }
 254                 }
 255
 256                 return $conds;
 257         }
 258
 259         /**
 260          * Process the query
 261          *
 262          * @param $conds array
 263          * @param $opts FormOptions
 264          * @return database result or false (for Recentchangeslinked only)
 265          */
 266         public function doMainQuery( $conds, $opts ) {
 267                 global $wgUser;
 268
 269                 $tables = array( 'recentchanges' );
 270                 $join_conds = array();
 271
 272                 $uid = $wgUser->getId();
 273                 $dbr = wfGetDB( DB_SLAVE );
 274                 $limit = $opts['limit'];
 275                 $namespace = $opts['namespace'];
 276                 $invert = $opts['invert'];
 277
 278                 // JOIN on watchlist for users
 279                 if( $uid ) {
 280                         $tables[] = 'watchlist';
 281                         $join_conds = array( 'watchlist' => array('LEFT JOIN',"wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace") );
 282                 }
 283
 284                 wfRunHooks('SpecialRecentChangesQuery', array( &$conds, &$tables, &$join_conds, $opts ) );
 285
 286                 // Is there either one namespace selected or excluded?
 287                 // Also, if this is "all" or main namespace, just use timestamp index.
 288                 if( is_null($namespace) || $invert || $namespace == NS_MAIN ) {
 289                         $res = $dbr->select( $tables, '*', $conds, __METHOD__,
 290                                 array( 'ORDER BY' => 'rc_timestamp DESC', 'LIMIT' => $limit,
 291                                         'USE INDEX' => array('recentchanges' => 'rc_timestamp') ),
 292                                 $join_conds );
 293                 // We have a new_namespace_time index! UNION over new=(0,1) and sort result set!
 294                 } else {
 295                         // New pages
 296                         $sqlNew = $dbr->selectSQLText( $tables, '*',
 297                                 array( 'rc_new' => 1 ) + $conds,
 298                                 __METHOD__,
 299                                 array( 'ORDER BY' => 'rc_timestamp DESC', 'LIMIT' => $limit,
 300                                         'USE INDEX' =>  array('recentchanges' => 'new_name_timestamp') ),
 301                                 $join_conds );
 302                         // Old pages
 303                         $sqlOld = $dbr->selectSQLText( $tables, '*',
 304                                 array( 'rc_new' => 0 ) + $conds,
 305                                 __METHOD__,
 306                                 array( 'ORDER BY' => 'rc_timestamp DESC', 'LIMIT' => $limit,
 307                                         'USE INDEX' =>  array('recentchanges' => 'new_name_timestamp') ),
 308                                 $join_conds );
 309                         # Join the two fast queries, and sort the result set
 310                         $sql = "($sqlNew) UNION ($sqlOld) ORDER BY rc_timestamp DESC LIMIT $limit";
 311                         $res = $dbr->query( $sql, __METHOD__ );
 312                 }
 313
 314                 return $res;
 315         }
 316
 317         /**
 318          * Send output to $wgOut, only called if not used feeds
 319          *
 320          * @param $rows array of database rows
 321          * @param $opts FormOptions
 322          */
 323         public function webOutput( $rows, $opts ) {
 324                 global $wgOut, $wgUser, $wgRCShowWatchingUsers, $wgShowUpdatedMarker;
 325                 global $wgAllowCategorizedRecentChanges;
 326
 327                 $limit = $opts['limit'];
 328
 329                 if ( !$this->including() ) {
 330                         // Output options box
 331                         $this->doHeader( $opts );
 332                 }
 333
 334                 // And now for the content
 335                 $wgOut->setSyndicated( true );
 336
 337                 $list = ChangesList::newFromUser( $wgUser );
 338
 339                 if ( $wgAllowCategorizedRecentChanges ) {
 340                         $this->filterByCategories( $rows, $opts );
 341                 }
 342
 343                 $s = $list->beginRecentChangesList();
 344                 $counter = 1;
 345
 346                 $showWatcherCount = $wgRCShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' );
 347                 $watcherCache = array();
 348
 349                 $dbr = wfGetDB( DB_SLAVE );
 350
 351                 foreach( $rows as $obj ){
 352                         if( $limit == 0) {
 353                                 break;
 354                         }
 355
 356                         if ( ! ( $opts['hideminor']     && $obj->rc_minor     ) &&
 357                              ! ( $opts['hidepatrolled'] && $obj->rc_patrolled ) ) {
 358                                 $rc = RecentChange::newFromRow( $obj );
 359                                 $rc->counter = $counter++;
 360
 361                                 if ($wgShowUpdatedMarker
 362                                         && !empty( $obj->wl_notificationtimestamp )
 363                                         && ($obj->rc_timestamp >= $obj->wl_notificationtimestamp)) {
 364                                                 $rc->notificationtimestamp = true;
 365                                 } else {
 366                                         $rc->notificationtimestamp = false;
 367                                 }
 368
 369                                 $rc->numberofWatchingusers = 0; // Default
 370                                 if ($showWatcherCount && $obj->rc_namespace >= 0) {
 371                                         if (!isset($watcherCache[$obj->rc_namespace][$obj->rc_title])) {
 372                                                 $watcherCache[$obj->rc_namespace][$obj->rc_title] =
 373                                                         $dbr->selectField( 'watchlist',
 374                                                                 'COUNT(*)',
 375                                                                 array(
 376                                                                         'wl_namespace' => $obj->rc_namespace,
 377                                                                         'wl_title' => $obj->rc_title,
 378                                                                 ),
 379                                                                 __METHOD__ . '-watchers' );
 380                                         }
 381                                         $rc->numberofWatchingusers = $watcherCache[$obj->rc_namespace][$obj->rc_title];
 382                                 }
 383                                 $s .= $list->recentChangesLine( $rc, !empty( $obj->wl_user ) );
 384                                 --$limit;
 385                         }
 386                 }
 387                 $s .= $list->endRecentChangesList();
 388                 $wgOut->addHTML( $s );
 389         }
 390
 391         /**
 392          * Return the text to be displayed above the changes
 393          *
 394          * @param $opts FormOptions
 395          * @return String: XHTML
 396          */
 397         public function doHeader( $opts ) {
 398                 global $wgScript, $wgOut;
 399
 400                 $this->setTopText( $wgOut, $opts );
 401
 402                 $defaults = $opts->getAllValues();
 403                 $nondefaults = $opts->getChangedValues();
 404                 $opts->consumeValues( array( 'namespace', 'invert' ) );
 405
 406                 $panel = array();
 407                 $panel[] = $this->optionsPanel( $defaults, $nondefaults );
 408                 $panel[] = '<hr />';
 409
 410                 $extraOpts = $this->getExtraOptions( $opts );
 411
 412                 $out = Xml::openElement( 'table' );
 413                 foreach ( $extraOpts as $optionRow ) {
 414                         $out .= Xml::openElement( 'tr' );
 415                         if ( is_array($optionRow) ) {
 416                                 $out .= Xml::tags( 'td', null, $optionRow[0] );
 417                                 $out .= Xml::tags( 'td', null, $optionRow[1] );
 418                         } else {
 419                                 $out .= Xml::tags( 'td', array( 'colspan' => 2 ), $optionRow );
 420                         }
 421                         $out .= Xml::closeElement( 'tr' );
 422                 }
 423                 $out .= Xml::closeElement( 'table' );
 424
 425                 $unconsumed = $opts->getUnconsumedValues();
 426                 foreach ( $unconsumed as $key => $value ) {
 427                         $out .= Xml::hidden( $key, $value );
 428                 }
 429
 430                 $t = $this->getTitle();
 431                 $out .= Xml::hidden( 'title', $t->getPrefixedText() );
 432                 $form = Xml::tags( 'form', array( 'action' => $wgScript ), $out );
 433                 $panel[] = $form;
 434                 $panelString = implode( "\n", $panel );
 435
 436                 $wgOut->addHTML(
 437                         Xml::fieldset( wfMsg( strtolower( $this->mName )  ), $panelString, array( 'class' => 'rcoptions' ) )
 438                 );
 439
 440                 $this->setBottomText( $wgOut, $opts );
 441         }
 442
 443         /**
 444          * Get options to be displayed in a form
 445          *
 446          * @param $opts FormOptions
 447          * @return array
 448          */
 449         function getExtraOptions( $opts ){
 450                 $extraOpts = array();
 451                 $extraOpts['namespace'] = $this->namespaceFilterForm( $opts );
 452
 453                 global $wgAllowCategorizedRecentChanges;
 454                 if ( $wgAllowCategorizedRecentChanges ) {
 455                         $extraOpts['category'] = $this->categoryFilterForm( $opts );
 456                 }
 457
 458                 wfRunHooks( 'SpecialRecentChangesPanel', array( &$extraOpts, $opts ) );
 459                 $extraOpts['submit'] = Xml::submitbutton( wfMsg('allpagessubmit') );
 460                 return $extraOpts;
 461         }
 462
 463         /**
 464          * Send the text to be displayed above the options
 465          *
 466          * @param $out OutputPage
 467          * @param $opts FormOptions
 468          */
 469         function setTopText( &$out, $opts ){
 470                 $out->addWikiText( wfMsgForContentNoTrans( 'recentchangestext' ) );
 471         }
 472
 473         /**
 474          * Send the text to be displayed after the options, for use in
 475          * Recentchangeslinked
 476          *
 477          * @param $out OutputPage
 478          * @param $opts FormOptions
 479          */
 480         function setBottomText( &$out, $opts ){}
 481
 482         /**
 483          * Creates the choose namespace selection
 484          *
 485          * @param $opts FormOptions
 486          * @return string
 487          */
 488         protected function namespaceFilterForm( FormOptions $opts ) {
 489                 $nsSelect = HTMLnamespaceselector( $opts['namespace'], '' );
 490                 $nsLabel = Xml::label( wfMsg('namespace'), 'namespace' );
 491                 $invert = Xml::checkLabel( wfMsg('invert'), 'invert', 'nsinvert', $opts['invert'] );
 492                 return array( $nsLabel, "$nsSelect $invert" );
 493         }
 494
 495         /**
 496          * Create a input to filter changes by categories
 497          *
 498          * @param $opts FormOptions
 499          * @return array
 500          */
 501         protected function categoryFilterForm( FormOptions $opts ) {
 502                 list( $label, $input ) = Xml::inputLabelSep( wfMsg('rc_categories'),
 503                         'categories', 'mw-categories', false, $opts['categories'] );
 504
 505                 $input .= ' ' . Xml::checkLabel( wfMsg('rc_categories_any'),
 506                         'categories_any', 'mw-categories_any', $opts['categories_any'] );
 507
 508                 return array( $label, $input );
 509         }
 510
 511         /**
 512          * Filter $rows by categories set in $opts
 513          *
 514          * @param $rows array of database rows
 515          * @param $opts FormOptions
 516          */
 517         function filterByCategories( &$rows, FormOptions $opts ) {
 518                 $categories = array_map( 'trim', explode( "|" , $opts['categories'] ) );
 519
 520                 if( empty($categories) ) {
 521                         return;
 522                 }
 523
 524                 # Filter categories
 525                 $cats = array();
 526                 foreach ( $categories as $cat ) {
 527                         $cat = trim( $cat );
 528                         if ( $cat == "" ) continue;
 529                         $cats[] = $cat;
 530                 }
 531
 532                 # Filter articles
 533                 $articles = array();
 534                 $a2r = array();
 535                 foreach ( $rows AS $k => $r ) {
 536                         $nt = Title::makeTitle( $r->rc_namespace, $r->rc_title );
 537                         $id = $nt->getArticleID();
 538                         if ( $id == 0 ) continue; # Page might have been deleted...
 539                         if ( !in_array($id, $articles) ) {
 540                                 $articles[] = $id;
 541                         }
 542                         if ( !isset($a2r[$id]) ) {
 543                                 $a2r[$id] = array();
 544                         }
 545                         $a2r[$id][] = $k;
 546                 }
 547
 548                 # Shortcut?
 549                 if ( !count($articles) || !count($cats) )
 550                         return ;
 551
 552                 # Look up
 553                 $c = new Categoryfinder ;
 554                 $c->seed( $articles, $cats, $opts['categories_any'] ? "OR" : "AND" ) ;
 555                 $match = $c->run();
 556
 557                 # Filter
 558                 $newrows = array();
 559                 foreach ( $match AS $id ) {
 560                         foreach ( $a2r[$id] AS $rev ) {
 561                                 $k = $rev;
 562                                 $newrows[$k] = $rows[$k];
 563                         }
 564                 }
 565                 $rows = $newrows;
 566         }
 567
 568         /**
 569          * Makes change an option link which carries all the other options
 570          * @param $title see Title
 571          * @param $override
 572          * @param $options
 573          */
 574         function makeOptionsLink( $title, $override, $options, $active = false ) {
 575                 global $wgUser;
 576                 $sk = $wgUser->getSkin();
 577                 return $sk->makeKnownLinkObj( $this->getTitle(), htmlspecialchars( $title ),
 578                         wfArrayToCGI( $override, $options ), '', '', $active ? 'style="font-weight: bold;"' : '' );
 579         }
 580
 581         /**
 582          * Creates the options panel.
 583          * @param $defaults array
 584          * @param $nondefaults array
 585          */
 586         function optionsPanel( $defaults, $nondefaults ) {
 587                 global $wgLang, $wgUser, $wgRCLinkLimits, $wgRCLinkDays;
 588
 589                 $options = $nondefaults + $defaults;
 590
 591                 if( $options['from'] )
 592                         $note = wfMsgExt( 'rcnotefrom', array( 'parseinline' ),
 593                                 $wgLang->formatNum( $options['limit'] ),
 594                                 $wgLang->timeanddate( $options['from'], true ) );
 595                 else
 596                         $note = wfMsgExt( 'rcnote', array( 'parseinline' ),
 597                                 $wgLang->formatNum( $options['limit'] ),
 598                                 $wgLang->formatNum( $options['days'] ),
 599                                 $wgLang->timeAndDate( wfTimestampNow(), true ),
 600                                 $wgLang->date( wfTimestampNow(), true ),
 601                                 $wgLang->time( wfTimestampNow(), true ) );
 602
 603                 # Sort data for display and make sure it's unique after we've added user data.
 604                 $wgRCLinkLimits[] = $options['limit'];
 605                 $wgRCLinkDays[] = $options['days'];
 606                 sort($wgRCLinkLimits);
 607                 sort($wgRCLinkDays);
 608                 $wgRCLinkLimits = array_unique($wgRCLinkLimits);
 609                 $wgRCLinkDays = array_unique($wgRCLinkDays);
 610
 611                 // limit links
 612                 foreach( $wgRCLinkLimits as $value ) {
 613                         $cl[] = $this->makeOptionsLink( $wgLang->formatNum( $value ),
 614                                 array( 'limit' => $value ), $nondefaults, $value == $options['limit'] ) ;
 615                 }
 616                 $cl = implode( ' | ', $cl);
 617
 618                 // day links, reset 'from' to none
 619                 foreach( $wgRCLinkDays as $value ) {
 620                         $dl[] = $this->makeOptionsLink( $wgLang->formatNum( $value ),
 621                                 array( 'days' => $value, 'from' => '' ), $nondefaults, $value == $options['days'] ) ;
 622                 }
 623                 $dl = implode( ' | ', $dl);
 624
 625
 626                 // show/hide links
 627                 $showhide = array( wfMsg( 'show' ), wfMsg( 'hide' ));
 628                 $minorLink = $this->makeOptionsLink( $showhide[1-$options['hideminor']],
 629                         array( 'hideminor' => 1-$options['hideminor'] ), $nondefaults);
 630                 $botLink = $this->makeOptionsLink( $showhide[1-$options['hidebots']],
 631                         array( 'hidebots' => 1-$options['hidebots'] ), $nondefaults);
 632                 $anonsLink = $this->makeOptionsLink( $showhide[ 1 - $options['hideanons'] ],
 633                         array( 'hideanons' => 1 - $options['hideanons'] ), $nondefaults );
 634                 $liuLink   = $this->makeOptionsLink( $showhide[1-$options['hideliu']],
 635                         array( 'hideliu' => 1-$options['hideliu'] ), $nondefaults);
 636                 $patrLink  = $this->makeOptionsLink( $showhide[1-$options['hidepatrolled']],
 637                         array( 'hidepatrolled' => 1-$options['hidepatrolled'] ), $nondefaults);
 638                 $myselfLink = $this->makeOptionsLink( $showhide[1-$options['hidemyself']],
 639                         array( 'hidemyself' => 1-$options['hidemyself'] ), $nondefaults);
 640
 641                 $links[] = wfMsgHtml( 'rcshowhideminor', $minorLink );
 642                 $links[] = wfMsgHtml( 'rcshowhidebots', $botLink );
 643                 $links[] = wfMsgHtml( 'rcshowhideanons', $anonsLink );
 644                 $links[] = wfMsgHtml( 'rcshowhideliu', $liuLink );
 645                 if( $wgUser->useRCPatrol() )
 646                         $links[] = wfMsgHtml( 'rcshowhidepatr', $patrLink );
 647                 $links[] = wfMsgHtml( 'rcshowhidemine', $myselfLink );
 648                 $hl = implode( ' | ', $links );
 649
 650                 // show from this onward link
 651                 $now = $wgLang->timeanddate( wfTimestampNow(), true );
 652                 $tl =  $this->makeOptionsLink( $now, array( 'from' => wfTimestampNow()), $nondefaults );
 653
 654                 $rclinks = wfMsgExt( 'rclinks', array( 'parseinline', 'replaceafter'),
 655                         $cl, $dl, $hl );
 656                 $rclistfrom = wfMsgExt( 'rclistfrom', array( 'parseinline', 'replaceafter'), $tl );
 657                 return "$note<br />$rclinks<br />$rclistfrom";
 658         }
 659 }