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',     $wgUser->getBoolOption( 'hideminor' ) );
  27                 $opts->add( 'hidebots',      true  );
  28                 $opts->add( 'hideanons',     false );
  29                 $opts->add( 'hideliu',       false );
  30                 $opts->add( 'hidepatrolled', $wgUser->getBoolOption( 'hidepatrolled' ) );
  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                 # Check if the client has a cached version
  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                 $conds = $this->buildMainQueryConds( $opts );
  98                 $rows = $this->doMainQuery( $conds, $opts );
  99                 if( $rows === false ){
 100                         if( !$this->including() ) {
 101                                 $this->doHeader( $opts );
 102                         }
 103                         return;
 104                 }
 105
 106                 if( !$feedFormat ) {
 107                         $batch = new LinkBatch;
 108                         foreach( $rows as $row ) {
 109                                 $batch->add( NS_USER, $row->rc_user_text  );
 110                                 $batch->add( NS_USER_TALK, $row->rc_user_text  );
 111                         }
 112                         $batch->execute();
 113                 }
 114
 115                 if( $feedFormat ) {
 116                         list( $feed, $feedObj ) = $this->getFeedObject( $feedFormat );
 117                         $feed->execute( $feedObj, $rows, $opts['limit'], $opts['hideminor'], $lastmod );
 118                 } else {
 119                         $this->webOutput( $rows, $opts );
 120                 }
 121
 122                 $rows->free();
 123         }
 124
 125         /**
 126          * Return an array with a ChangesFeed object and ChannelFeed object
 127          *
 128          * @return array
 129          */
 130         public function getFeedObject( $feedFormat ){
 131                 $feed = new ChangesFeed( $feedFormat, 'rcfeed' );
 132                 $feedObj = $feed->getFeedObject(
 133                         wfMsgForContent( 'recentchanges' ),
 134                         wfMsgForContent( 'recentchanges-feed-description' )
 135                 );
 136                 return array( $feed, $feedObj );
 137         }
 138
 139         /**
 140          * Process $par and put options found if $opts
 141          * Mainly used when including the page
 142          *
 143          * @param $par String
 144          * @param $opts FormOptions
 145          */
 146         public function parseParameters( $par, FormOptions $opts ) {
 147                 $bits = preg_split( '/\s*,\s*/', trim( $par ) );
 148                 foreach( $bits as $bit ) {
 149                         if( 'hidebots' === $bit ) $opts['hidebots'] = true;
 150                         if( 'bots' === $bit ) $opts['hidebots'] = false;
 151                         if( 'hideminor' === $bit ) $opts['hideminor'] = true;
 152                         if( 'minor' === $bit ) $opts['hideminor'] = false;
 153                         if( 'hideliu' === $bit ) $opts['hideliu'] = true;
 154                         if( 'hidepatrolled' === $bit ) $opts['hidepatrolled'] = true;
 155                         if( 'hideanons' === $bit ) $opts['hideanons'] = true;
 156                         if( 'hidemyself' === $bit ) $opts['hidemyself'] = true;
 157
 158                         if( is_numeric( $bit ) ) $opts['limit'] =  $bit;
 159
 160                         $m = array();
 161                         if( preg_match( '/^limit=(\d+)$/', $bit, $m ) ) $opts['limit'] = $m[1];
 162                         if( preg_match( '/^days=(\d+)$/', $bit, $m ) ) $opts['days'] = $m[1];
 163                 }
 164         }
 165
 166         /**
 167          * Get last modified date, for client caching
 168          * Don't use this if we are using the patrol feature, patrol changes don't
 169          * update the timestamp
 170          *
 171          * @param $feedFormat String
 172          * @return string or false
 173          */
 174         public function checkLastModified( $feedFormat ) {
 175                 global $wgUseRCPatrol, $wgOut;
 176                 $dbr = wfGetDB( DB_SLAVE );
 177                 $lastmod = $dbr->selectField( 'recentchanges', 'MAX(rc_timestamp)', false, __FUNCTION__ );
 178                 if( $feedFormat || !$wgUseRCPatrol ) {
 179                         if( $lastmod && $wgOut->checkLastModified( $lastmod ) ) {
 180                                 # Client cache fresh and headers sent, nothing more to do.
 181                                 return false;
 182                         }
 183                 }
 184                 return $lastmod;
 185         }
 186
 187         /**
 188          * Return an array of conditions depending of options set in $opts
 189          *
 190          * @param $opts FormOptions
 191          * @return array
 192          */
 193         public function buildMainQueryConds( FormOptions $opts ) {
 194                 global $wgUser;
 195
 196                 $dbr = wfGetDB( DB_SLAVE );
 197                 $conds = array();
 198
 199                 # It makes no sense to hide both anons and logged-in users
 200                 # Where this occurs, force anons to be shown
 201                 $forcebot = false;
 202                 if( $opts['hideanons'] && $opts['hideliu'] ){
 203                         # Check if the user wants to show bots only
 204                         if( $opts['hidebots'] ){
 205                                 $opts['hideanons'] = false;
 206                         } else {
 207                                 $forcebot = true;
 208                                 $opts['hidebots'] = false;
 209                         }
 210                 }
 211
 212                 // Calculate cutoff
 213                 $cutoff_unixtime = time() - ( $opts['days'] * 86400 );
 214                 $cutoff_unixtime = $cutoff_unixtime - ($cutoff_unixtime % 86400);
 215                 $cutoff = $dbr->timestamp( $cutoff_unixtime );
 216
 217                 $fromValid = preg_match('/^[0-9]{14}$/', $opts['from']);
 218                 if( $fromValid && $opts['from'] > wfTimestamp(TS_MW,$cutoff) ) {
 219                         $cutoff = $dbr->timestamp($opts['from']);
 220                 } else {
 221                         $opts->reset( 'from' );
 222                 }
 223
 224                 $conds[] = 'rc_timestamp >= ' . $dbr->addQuotes( $cutoff );
 225
 226
 227                 $hidePatrol = $wgUser->useRCPatrol() && $opts['hidepatrolled'];
 228                 $hideLoggedInUsers = $opts['hideliu'] && !$forcebot;
 229                 $hideAnonymousUsers = $opts['hideanons'] && !$forcebot;
 230
 231                 if( $opts['hideminor'] )  $conds['rc_minor'] = 0;
 232                 if( $opts['hidebots'] )   $conds['rc_bot'] = 0;
 233                 if( $hidePatrol )         $conds['rc_patrolled'] = 0;
 234                 if( $forcebot )           $conds['rc_bot'] = 1;
 235                 if( $hideLoggedInUsers )  $conds[] = 'rc_user = 0';
 236                 if( $hideAnonymousUsers ) $conds[] = 'rc_user != 0';
 237
 238                 if( $opts['hidemyself'] ) {
 239                         if( $wgUser->getId() ) {
 240                                 $conds[] = 'rc_user != ' . $dbr->addQuotes( $wgUser->getId() );
 241                         } else {
 242                                 $conds[] = 'rc_user_text != ' . $dbr->addQuotes( $wgUser->getName() );
 243                         }
 244                 }
 245
 246                 # Namespace filtering
 247                 if( $opts['namespace'] !== '' ) {
 248                         if( !$opts['invert'] ) {
 249                                 $conds[] = 'rc_namespace = ' . $dbr->addQuotes( $opts['namespace'] );
 250                         } else {
 251                                 $conds[] = 'rc_namespace != ' . $dbr->addQuotes( $opts['namespace'] );
 252                         }
 253                 }
 254
 255                 return $conds;
 256         }
 257
 258         /**
 259          * Process the query
 260          *
 261          * @param $conds array
 262          * @param $opts FormOptions
 263          * @return database result or false (for Recentchangeslinked only)
 264          */
 265         public function doMainQuery( $conds, $opts ) {
 266                 global $wgUser;
 267
 268                 $tables = array( 'recentchanges' );
 269                 $join_conds = array();
 270
 271                 $uid = $wgUser->getId();
 272                 $dbr = wfGetDB( DB_SLAVE );
 273                 $limit = $opts['limit'];
 274                 $namespace = $opts['namespace'];
 275                 $invert = $opts['invert'];
 276
 277                 // JOIN on watchlist for users
 278                 if( $uid ) {
 279                         $tables[] = 'watchlist';
 280                         $join_conds = array( 'watchlist' => array('LEFT JOIN',
 281                                 "wl_user={$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                 if( $wgAllowCategorizedRecentChanges ) {
 338                         $this->filterByCategories( $rows, $opts );
 339                 }
 340
 341                 $showWatcherCount = $wgRCShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' );
 342                 $watcherCache = array();
 343
 344                 $dbr = wfGetDB( DB_SLAVE );
 345
 346                 $counter = 1;
 347                 $list = ChangesList::newFromUser( $wgUser );
 348
 349                 $s = $list->beginRecentChangesList();
 350                 foreach( $rows as $obj ) {
 351                         if( $limit == 0 ) break;
 352                         $rc = RecentChange::newFromRow( $obj );
 353                         $rc->counter = $counter++;
 354                         # Check if the page has been updated since the last visit
 355                         if( $wgShowUpdatedMarker && !empty($obj->wl_notificationtimestamp) ) {
 356                                 $rc->notificationtimestamp = ($obj->rc_timestamp >= $obj->wl_notificationtimestamp);
 357                         } else {
 358                                 $rc->notificationtimestamp = false; // Default
 359                         }
 360                         # Check the number of users watching the page
 361                         $rc->numberofWatchingusers = 0; // Default
 362                         if( $showWatcherCount && $obj->rc_namespace >= 0 ) {
 363                                 if( !isset($watcherCache[$obj->rc_namespace][$obj->rc_title]) ) {
 364                                         $watcherCache[$obj->rc_namespace][$obj->rc_title] =
 365                                                  $dbr->selectField( 'watchlist',
 366                                                         'COUNT(*)',
 367                                                         array(
 368                                                                 'wl_namespace' => $obj->rc_namespace,
 369                                                                 'wl_title' => $obj->rc_title,
 370                                                         ),
 371                                                         __METHOD__ . '-watchers' );
 372                                 }
 373                                 $rc->numberofWatchingusers = $watcherCache[$obj->rc_namespace][$obj->rc_title];
 374                         }
 375                         $s .= $list->recentChangesLine( $rc, !empty( $obj->wl_user ) );
 376                         --$limit;
 377                 }
 378                 $s .= $list->endRecentChangesList();
 379                 $wgOut->addHTML( $s );
 380         }
 381
 382         /**
 383          * Return the text to be displayed above the changes
 384          *
 385          * @param $opts FormOptions
 386          * @return String: XHTML
 387          */
 388         public function doHeader( $opts ) {
 389                 global $wgScript, $wgOut;
 390
 391                 $this->setTopText( $wgOut, $opts );
 392
 393                 $defaults = $opts->getAllValues();
 394                 $nondefaults = $opts->getChangedValues();
 395                 $opts->consumeValues( array( 'namespace', 'invert' ) );
 396
 397                 $panel = array();
 398                 $panel[] = $this->optionsPanel( $defaults, $nondefaults );
 399                 $panel[] = '<hr />';
 400
 401                 $extraOpts = $this->getExtraOptions( $opts );
 402                 $extraOptsCount = count( $extraOpts );
 403                 $count = 0;
 404                 $submit = ' ' . Xml::submitbutton( wfMsg( 'allpagessubmit' ) );
 405
 406                 $out = Xml::openElement( 'table', array( 'class' => 'mw-recentchanges-table' ) );
 407                 foreach( $extraOpts as $optionRow ) {
 408                         # Add submit button to the last row only
 409                         ++$count;
 410                         $addSubmit = $count === $extraOptsCount ? $submit : '';
 411
 412                         $out .= Xml::openElement( 'tr' );
 413                         if( is_array( $optionRow ) ) {
 414                                 $out .= Xml::tags( 'td', array( 'class' => 'mw-label' ), $optionRow[0] );
 415                                 $out .= Xml::tags( 'td', array( 'class' => 'mw-input' ), $optionRow[1] . $addSubmit );
 416                         } else {
 417                                 $out .= Xml::tags( 'td', array( 'class' => 'mw-input', 'colspan' => 2 ), $optionRow . $addSubmit );
 418                         }
 419                         $out .= Xml::closeElement( 'tr' );
 420                 }
 421                 $out .= Xml::closeElement( 'table' );
 422
 423                 $unconsumed = $opts->getUnconsumedValues();
 424                 foreach( $unconsumed as $key => $value ) {
 425                         $out .= Xml::hidden( $key, $value );
 426                 }
 427
 428                 $t = $this->getTitle();
 429                 $out .= Xml::hidden( 'title', $t->getPrefixedText() );
 430                 $form = Xml::tags( 'form', array( 'action' => $wgScript ), $out );
 431                 $panel[] = $form;
 432                 $panelString = implode( "\n", $panel );
 433
 434                 $wgOut->addHTML(
 435                         Xml::fieldset( wfMsg( 'recentchanges-legend' ), $panelString, array( 'class' => 'rcoptions' ) )
 436                 );
 437
 438                 $this->setBottomText( $wgOut, $opts );
 439         }
 440
 441         /**
 442          * Get options to be displayed in a form
 443          *
 444          * @param $opts FormOptions
 445          * @return array
 446          */
 447         function getExtraOptions( $opts ){
 448                 $extraOpts = array();
 449                 $extraOpts['namespace'] = $this->namespaceFilterForm( $opts );
 450
 451                 global $wgAllowCategorizedRecentChanges;
 452                 if( $wgAllowCategorizedRecentChanges ) {
 453                         $extraOpts['category'] = $this->categoryFilterForm( $opts );
 454                 }
 455
 456                 wfRunHooks( 'SpecialRecentChangesPanel', array( &$extraOpts, $opts ) );
 457                 return $extraOpts;
 458         }
 459
 460         /**
 461          * Send the text to be displayed above the options
 462          *
 463          * @param $out OutputPage
 464          * @param $opts FormOptions
 465          */
 466         function setTopText( OutputPage $out, FormOptions $opts ){
 467                 $out->addWikiText( wfMsgForContentNoTrans( 'recentchangestext' ) );
 468         }
 469
 470         /**
 471          * Send the text to be displayed after the options, for use in
 472          * Recentchangeslinked
 473          *
 474          * @param $out OutputPage
 475          * @param $opts FormOptions
 476          */
 477         function setBottomText( OutputPage $out, FormOptions $opts ){}
 478
 479         /**
 480          * Creates the choose namespace selection
 481          *
 482          * @param $opts FormOptions
 483          * @return string
 484          */
 485         protected function namespaceFilterForm( FormOptions $opts ) {
 486                 $nsSelect = Xml::namespaceSelector( $opts['namespace'], '' );
 487                 $nsLabel = Xml::label( wfMsg('namespace'), 'namespace' );
 488                 $invert = Xml::checkLabel( wfMsg('invert'), 'invert', 'nsinvert', $opts['invert'] );
 489                 return array( $nsLabel, "$nsSelect $invert" );
 490         }
 491
 492         /**
 493          * Create a input to filter changes by categories
 494          *
 495          * @param $opts FormOptions
 496          * @return array
 497          */
 498         protected function categoryFilterForm( FormOptions $opts ) {
 499                 list( $label, $input ) = Xml::inputLabelSep( wfMsg('rc_categories'),
 500                         'categories', 'mw-categories', false, $opts['categories'] );
 501
 502                 $input .= ' ' . Xml::checkLabel( wfMsg('rc_categories_any'),
 503                         'categories_any', 'mw-categories_any', $opts['categories_any'] );
 504
 505                 return array( $label, $input );
 506         }
 507
 508         /**
 509          * Filter $rows by categories set in $opts
 510          *
 511          * @param $rows array of database rows
 512          * @param $opts FormOptions
 513          */
 514         function filterByCategories( &$rows, FormOptions $opts ) {
 515                 $categories = array_map( 'trim', explode( "|" , $opts['categories'] ) );
 516
 517                 if( empty($categories) ) {
 518                         return;
 519                 }
 520
 521                 # Filter categories
 522                 $cats = array();
 523                 foreach( $categories as $cat ) {
 524                         $cat = trim( $cat );
 525                         if( $cat == "" ) continue;
 526                         $cats[] = $cat;
 527                 }
 528
 529                 # Filter articles
 530                 $articles = array();
 531                 $a2r = array();
 532                 foreach( $rows AS $k => $r ) {
 533                         $nt = Title::makeTitle( $r->rc_namespace, $r->rc_title );
 534                         $id = $nt->getArticleID();
 535                         if( $id == 0 ) continue; # Page might have been deleted...
 536                         if( !in_array($id, $articles) ) {
 537                                 $articles[] = $id;
 538                         }
 539                         if( !isset($a2r[$id]) ) {
 540                                 $a2r[$id] = array();
 541                         }
 542                         $a2r[$id][] = $k;
 543                 }
 544
 545                 # Shortcut?
 546                 if( !count($articles) || !count($cats) )
 547                         return ;
 548
 549                 # Look up
 550                 $c = new Categoryfinder ;
 551                 $c->seed( $articles, $cats, $opts['categories_any'] ? "OR" : "AND" ) ;
 552                 $match = $c->run();
 553
 554                 # Filter
 555                 $newrows = array();
 556                 foreach( $match AS $id ) {
 557                         foreach( $a2r[$id] AS $rev ) {
 558                                 $k = $rev;
 559                                 $newrows[$k] = $rows[$k];
 560                         }
 561                 }
 562                 $rows = $newrows;
 563         }
 564
 565         /**
 566          * Makes change an option link which carries all the other options
 567          * @param $title see Title
 568          * @param $override
 569          * @param $options
 570          */
 571         function makeOptionsLink( $title, $override, $options, $active = false ) {
 572                 global $wgUser;
 573                 $sk = $wgUser->getSkin();
 574                 $params = $override + $options;
 575                 return $sk->link( $this->getTitle(), htmlspecialchars( $title ),
 576                         ( $active ? array( 'style'=>'font-weight: bold;' ) : array() ), $params, array( 'known' ) );
 577         }
 578
 579         /**
 580          * Creates the options panel.
 581          * @param $defaults array
 582          * @param $nondefaults array
 583          */
 584         function optionsPanel( $defaults, $nondefaults ) {
 585                 global $wgLang, $wgUser, $wgRCLinkLimits, $wgRCLinkDays;
 586
 587                 $options = $nondefaults + $defaults;
 588
 589                 $note = '';
 590                 if( $options['from'] ) {
 591                         $note .= wfMsgExt( 'rcnotefrom', array( 'parseinline' ),
 592                                 $wgLang->formatNum( $options['limit'] ),
 593                                 $wgLang->timeanddate( $options['from'], true ) ) . '<br />';
 594                 }
 595                 if( !wfEmptyMsg( 'rclegend', wfMsg('rclegend') ) ) {
 596                         $note .= wfMsgExt( 'rclegend', array('parseinline') ) . '<br />';
 597                 }
 598
 599                 # Sort data for display and make sure it's unique after we've added user data.
 600                 $wgRCLinkLimits[] = $options['limit'];
 601                 $wgRCLinkDays[] = $options['days'];
 602                 sort( $wgRCLinkLimits );
 603                 sort( $wgRCLinkDays );
 604                 $wgRCLinkLimits = array_unique( $wgRCLinkLimits );
 605                 $wgRCLinkDays = array_unique( $wgRCLinkDays );
 606
 607                 // limit links
 608                 foreach( $wgRCLinkLimits as $value ) {
 609                         $cl[] = $this->makeOptionsLink( $wgLang->formatNum( $value ),
 610                                 array( 'limit' => $value ), $nondefaults, $value == $options['limit'] ) ;
 611                 }
 612                 $cl = implode( ' | ', $cl );
 613
 614                 // day links, reset 'from' to none
 615                 foreach( $wgRCLinkDays as $value ) {
 616                         $dl[] = $this->makeOptionsLink( $wgLang->formatNum( $value ),
 617                                 array( 'days' => $value, 'from' => '' ), $nondefaults, $value == $options['days'] ) ;
 618                 }
 619                 $dl = implode( ' | ', $dl );
 620
 621
 622                 // show/hide links
 623                 $showhide = array( wfMsg( 'show' ), wfMsg( 'hide' ) );
 624                 $minorLink = $this->makeOptionsLink( $showhide[1-$options['hideminor']],
 625                         array( 'hideminor' => 1-$options['hideminor'] ), $nondefaults);
 626                 $botLink = $this->makeOptionsLink( $showhide[1-$options['hidebots']],
 627                         array( 'hidebots' => 1-$options['hidebots'] ), $nondefaults);
 628                 $anonsLink = $this->makeOptionsLink( $showhide[ 1 - $options['hideanons'] ],
 629                         array( 'hideanons' => 1 - $options['hideanons'] ), $nondefaults );
 630                 $liuLink   = $this->makeOptionsLink( $showhide[1-$options['hideliu']],
 631                         array( 'hideliu' => 1-$options['hideliu'] ), $nondefaults);
 632                 $patrLink  = $this->makeOptionsLink( $showhide[1-$options['hidepatrolled']],
 633                         array( 'hidepatrolled' => 1-$options['hidepatrolled'] ), $nondefaults);
 634                 $myselfLink = $this->makeOptionsLink( $showhide[1-$options['hidemyself']],
 635                         array( 'hidemyself' => 1-$options['hidemyself'] ), $nondefaults);
 636
 637                 $links[] = wfMsgHtml( 'rcshowhideminor', $minorLink );
 638                 $links[] = wfMsgHtml( 'rcshowhidebots', $botLink );
 639                 $links[] = wfMsgHtml( 'rcshowhideanons', $anonsLink );
 640                 $links[] = wfMsgHtml( 'rcshowhideliu', $liuLink );
 641                 if( $wgUser->useRCPatrol() )
 642                         $links[] = wfMsgHtml( 'rcshowhidepatr', $patrLink );
 643                 $links[] = wfMsgHtml( 'rcshowhidemine', $myselfLink );
 644                 $hl = implode( ' | ', $links );
 645
 646                 // show from this onward link
 647                 $now = $wgLang->timeanddate( wfTimestampNow(), true );
 648                 $tl =  $this->makeOptionsLink( $now, array( 'from' => wfTimestampNow() ), $nondefaults );
 649
 650                 $rclinks = wfMsgExt( 'rclinks', array( 'parseinline', 'replaceafter' ),
 651                         $cl, $dl, $hl );
 652                 $rclistfrom = wfMsgExt( 'rclistfrom', array( 'parseinline', 'replaceafter' ), $tl );
 653                 return "{$note}$rclinks<br />$rclistfrom";
 654         }
 655 }