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                 $opts->add( 'tagfilter', '' );
  39                 return $opts;
  40         }
  41
  42         /**
  43          * Get a FormOptions object with options as specified by the user
  44          *
  45          * @return FormOptions
  46          */
  47         public function setup( $parameters ) {
  48                 global $wgRequest;
  49
  50                 $opts = $this->getDefaultOptions();
  51                 $opts->fetchValuesFromRequest( $wgRequest );
  52
  53                 // Give precedence to subpage syntax
  54                 if( $parameters !== null ) {
  55                         $this->parseParameters( $parameters, $opts );
  56                 }
  57
  58                 $opts->validateIntBounds( 'limit', 0, 5000 );
  59                 return $opts;
  60         }
  61
  62         /**
  63          * Get a FormOptions object sepcific for feed requests
  64          *
  65          * @return FormOptions
  66          */
  67         public function feedSetup() {
  68                 global $wgFeedLimit, $wgRequest;
  69                 $opts = $this->getDefaultOptions();
  70                 # Feed is cached on limit,hideminor,namespace; other params would randomly not work
  71                 $opts->fetchValuesFromRequest( $wgRequest, array( 'limit', 'hideminor', 'namespace' ) );
  72                 $opts->validateIntBounds( 'limit', 0, $wgFeedLimit );
  73                 return $opts;
  74         }
  75
  76         /**
  77          * Main execution point
  78          *
  79          * @param $parameters string
  80          */
  81         public function execute( $parameters ) {
  82                 global $wgRequest, $wgOut;
  83                 $feedFormat = $wgRequest->getVal( 'feed' );
  84
  85                 # 10 seconds server-side caching max
  86                 $wgOut->setSquidMaxage( 10 );
  87                 # Check if the client has a cached version
  88                 $lastmod = $this->checkLastModified( $feedFormat );
  89                 if( $lastmod === false ) {
  90                         return;
  91                 }
  92
  93                 $opts = $feedFormat ? $this->feedSetup() : $this->setup( $parameters );
  94                 $this->setHeaders();
  95                 $this->outputHeader();
  96
  97                 // Fetch results, prepare a batch link existence check query
  98                 $rows = array();
  99                 $conds = $this->buildMainQueryConds( $opts );
 100                 $rows = $this->doMainQuery( $conds, $opts );
 101                 if( $rows === false ){
 102                         if( !$this->including() ) {
 103                                 $this->doHeader( $opts );
 104                         }
 105                         return;
 106                 }
 107
 108                 if( !$feedFormat ) {
 109                         $batch = new LinkBatch;
 110                         foreach( $rows as $row ) {
 111                                 $batch->add( NS_USER, $row->rc_user_text  );
 112                                 $batch->add( NS_USER_TALK, $row->rc_user_text  );
 113                                 $batch->add( $row->rc_namespace, $row->rc_title );
 114                         }
 115                         $batch->execute();
 116                 }
 117                 $target = isset($opts['target']) ? $opts['target'] : ''; // RCL has targets
 118                 if( $feedFormat ) {
 119                         list( $feed, $feedObj ) = $this->getFeedObject( $feedFormat );
 120                         $feed->execute( $feedObj, $rows, $opts['limit'], $opts['hideminor'], $lastmod, $target, $opts['namespace'] );
 121                 } else {
 122                         $this->webOutput( $rows, $opts );
 123                 }
 124
 125                 $rows->free();
 126         }
 127
 128         /**
 129          * Return an array with a ChangesFeed object and ChannelFeed object
 130          *
 131          * @return array
 132          */
 133         public function getFeedObject( $feedFormat ){
 134                 $feed = new ChangesFeed( $feedFormat, 'rcfeed' );
 135                 $feedObj = $feed->getFeedObject(
 136                         wfMsgForContent( 'recentchanges' ),
 137                         wfMsgForContent( 'recentchanges-feed-description' )
 138                 );
 139                 return array( $feed, $feedObj );
 140         }
 141
 142         /**
 143          * Process $par and put options found if $opts
 144          * Mainly used when including the page
 145          *
 146          * @param $par String
 147          * @param $opts FormOptions
 148          */
 149         public function parseParameters( $par, FormOptions $opts ) {
 150                 $bits = preg_split( '/\s*,\s*/', trim( $par ) );
 151                 foreach( $bits as $bit ) {
 152                         if( 'hidebots' === $bit ) $opts['hidebots'] = true;
 153                         if( 'bots' === $bit ) $opts['hidebots'] = false;
 154                         if( 'hideminor' === $bit ) $opts['hideminor'] = true;
 155                         if( 'minor' === $bit ) $opts['hideminor'] = false;
 156                         if( 'hideliu' === $bit ) $opts['hideliu'] = true;
 157                         if( 'hidepatrolled' === $bit ) $opts['hidepatrolled'] = true;
 158                         if( 'hideanons' === $bit ) $opts['hideanons'] = true;
 159                         if( 'hidemyself' === $bit ) $opts['hidemyself'] = true;
 160
 161                         if( is_numeric( $bit ) ) $opts['limit'] =  $bit;
 162
 163                         $m = array();
 164                         if( preg_match( '/^limit=(\d+)$/', $bit, $m ) ) $opts['limit'] = $m[1];
 165                         if( preg_match( '/^days=(\d+)$/', $bit, $m ) ) $opts['days'] = $m[1];
 166                 }
 167         }
 168
 169         /**
 170          * Get last modified date, for client caching
 171          * Don't use this if we are using the patrol feature, patrol changes don't
 172          * update the timestamp
 173          *
 174          * @param $feedFormat String
 175          * @return string or false
 176          */
 177         public function checkLastModified( $feedFormat ) {
 178                 global $wgUseRCPatrol, $wgOut;
 179                 $dbr = wfGetDB( DB_SLAVE );
 180                 $lastmod = $dbr->selectField( 'recentchanges', 'MAX(rc_timestamp)', false, __METHOD__ );
 181                 if( $feedFormat || !$wgUseRCPatrol ) {
 182                         if( $lastmod && $wgOut->checkLastModified( $lastmod ) ) {
 183                                 # Client cache fresh and headers sent, nothing more to do.
 184                                 return false;
 185                         }
 186                 }
 187                 return $lastmod;
 188         }
 189
 190         /**
 191          * Return an array of conditions depending of options set in $opts
 192          *
 193          * @param $opts FormOptions
 194          * @return array
 195          */
 196         public function buildMainQueryConds( FormOptions $opts ) {
 197                 global $wgUser;
 198
 199                 $dbr = wfGetDB( DB_SLAVE );
 200                 $conds = array();
 201
 202                 # It makes no sense to hide both anons and logged-in users
 203                 # Where this occurs, force anons to be shown
 204                 $forcebot = false;
 205                 if( $opts['hideanons'] && $opts['hideliu'] ){
 206                         # Check if the user wants to show bots only
 207                         if( $opts['hidebots'] ){
 208                                 $opts['hideanons'] = false;
 209                         } else {
 210                                 $forcebot = true;
 211                                 $opts['hidebots'] = false;
 212                         }
 213                 }
 214
 215                 // Calculate cutoff
 216                 $cutoff_unixtime = time() - ( $opts['days'] * 86400 );
 217                 $cutoff_unixtime = $cutoff_unixtime - ($cutoff_unixtime % 86400);
 218                 $cutoff = $dbr->timestamp( $cutoff_unixtime );
 219
 220                 $fromValid = preg_match('/^[0-9]{14}$/', $opts['from']);
 221                 if( $fromValid && $opts['from'] > wfTimestamp(TS_MW,$cutoff) ) {
 222                         $cutoff = $dbr->timestamp($opts['from']);
 223                 } else {
 224                         $opts->reset( 'from' );
 225                 }
 226
 227                 $conds[] = 'rc_timestamp >= ' . $dbr->addQuotes( $cutoff );
 228
 229
 230                 $hidePatrol = $wgUser->useRCPatrol() && $opts['hidepatrolled'];
 231                 $hideLoggedInUsers = $opts['hideliu'] && !$forcebot;
 232                 $hideAnonymousUsers = $opts['hideanons'] && !$forcebot;
 233
 234                 if( $opts['hideminor'] )  $conds['rc_minor'] = 0;
 235                 if( $opts['hidebots'] )   $conds['rc_bot'] = 0;
 236                 if( $hidePatrol )         $conds['rc_patrolled'] = 0;
 237                 if( $forcebot )           $conds['rc_bot'] = 1;
 238                 if( $hideLoggedInUsers )  $conds[] = 'rc_user = 0';
 239                 if( $hideAnonymousUsers ) $conds[] = 'rc_user != 0';
 240
 241                 if( $opts['hidemyself'] ) {
 242                         if( $wgUser->getId() ) {
 243                                 $conds[] = 'rc_user != ' . $dbr->addQuotes( $wgUser->getId() );
 244                         } else {
 245                                 $conds[] = 'rc_user_text != ' . $dbr->addQuotes( $wgUser->getName() );
 246                         }
 247                 }
 248
 249                 # Namespace filtering
 250                 if( $opts['namespace'] !== '' ) {
 251                         if( !$opts['invert'] ) {
 252                                 $conds[] = 'rc_namespace = ' . $dbr->addQuotes( $opts['namespace'] );
 253                         } else {
 254                                 $conds[] = 'rc_namespace != ' . $dbr->addQuotes( $opts['namespace'] );
 255                         }
 256                 }
 257
 258                 return $conds;
 259         }
 260
 261         /**
 262          * Process the query
 263          *
 264          * @param $conds array
 265          * @param $opts FormOptions
 266          * @return database result or false (for Recentchangeslinked only)
 267          */
 268         public function doMainQuery( $conds, $opts ) {
 269                 global $wgUser;
 270
 271                 $tables = array( 'recentchanges' );
 272                 $join_conds = array();
 273                 $query_options = array( 'USE INDEX' => array('recentchanges' => 'rc_timestamp') );
 274
 275                 $uid = $wgUser->getId();
 276                 $dbr = wfGetDB( DB_SLAVE );
 277                 $limit = $opts['limit'];
 278                 $namespace = $opts['namespace'];
 279                 $invert = $opts['invert'];
 280
 281                 // JOIN on watchlist for users
 282                 if( $uid ) {
 283                         $tables[] = 'watchlist';
 284                         $join_conds['watchlist'] = array('LEFT JOIN',
 285                                 "wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace");
 286                 }
 287                 if ($wgUser->isAllowed("rollback")) {
 288                         $tables[] = 'page';
 289                         $join_conds['page'] = array('LEFT JOIN', 'rc_cur_id=page_id');
 290                 }
 291                 // Tag stuff.
 292                 $fields = array();
 293                 // Fields are * in this case, so let the function modify an empty array to keep it happy.
 294                 ChangeTags::modifyDisplayQuery(
 295                         $tables, $fields, $conds, $join_conds, $query_options, $opts['tagfilter']
 296                 );
 297
 298                 if ( !wfRunHooks( 'SpecialRecentChangesQuery', array( &$conds, &$tables, &$join_conds, $opts, &$query_options ) ) )
 299                         return false;
 300
 301                 // Don't use the new_namespace_time timestamp index if:
 302                 // (a) "All namespaces" selected
 303                 // (b) We want all pages NOT in a certain namespaces (inverted)
 304                 // (c) There is a tag to filter on (use tag index instead)
 305                 // (d) UNION + sort/limit is not an option for the DBMS
 306                 if( is_null($namespace)
 307                         || $invert
 308                         || $opts['tagfilter'] != ''
 309                         || !$dbr->unionSupportsOrderAndLimit() )
 310                 {
 311                         $res = $dbr->select( $tables, '*', $conds, __METHOD__,
 312                                 array( 'ORDER BY' => 'rc_timestamp DESC', 'LIMIT' => $limit ) +
 313                                 $query_options,
 314                                 $join_conds );
 315                 // We have a new_namespace_time index! UNION over new=(0,1) and sort result set!
 316                 } else {
 317                         // New pages
 318                         $sqlNew = $dbr->selectSQLText( $tables, '*',
 319                                 array( 'rc_new' => 1 ) + $conds,
 320                                 __METHOD__,
 321                                 array( 'ORDER BY' => 'rc_timestamp DESC', 'LIMIT' => $limit,
 322                                         'USE INDEX' =>  array('recentchanges' => 'rc_timestamp') ),
 323                                 $join_conds );
 324                         // Old pages
 325                         $sqlOld = $dbr->selectSQLText( $tables, '*',
 326                                 array( 'rc_new' => 0 ) + $conds,
 327                                 __METHOD__,
 328                                 array( 'ORDER BY' => 'rc_timestamp DESC', 'LIMIT' => $limit,
 329                                         'USE INDEX' =>  array('recentchanges' => 'rc_timestamp') ),
 330                                 $join_conds );
 331                         # Join the two fast queries, and sort the result set
 332                         $sql = $dbr->unionQueries(array($sqlNew, $sqlOld), false).' ORDER BY rc_timestamp DESC';
 333                         $sql = $dbr->limitResult($sql, $limit, false);
 334                         $res = $dbr->query( $sql, __METHOD__ );
 335                 }
 336
 337                 return $res;
 338         }
 339
 340         /**
 341          * Send output to $wgOut, only called if not used feeds
 342          *
 343          * @param $rows array of database rows
 344          * @param $opts FormOptions
 345          */
 346         public function webOutput( $rows, $opts ) {
 347                 global $wgOut, $wgUser, $wgRCShowWatchingUsers, $wgShowUpdatedMarker;
 348                 global $wgAllowCategorizedRecentChanges;
 349
 350                 $limit = $opts['limit'];
 351
 352                 if( !$this->including() ) {
 353                         // Output options box
 354                         $this->doHeader( $opts );
 355                 }
 356
 357                 // And now for the content
 358                 $wgOut->setSyndicated( true );
 359
 360                 if( $wgAllowCategorizedRecentChanges ) {
 361                         $this->filterByCategories( $rows, $opts );
 362                 }
 363
 364                 $showWatcherCount = $wgRCShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' );
 365                 $watcherCache = array();
 366
 367                 $dbr = wfGetDB( DB_SLAVE );
 368
 369                 $counter = 1;
 370                 $list = ChangesList::newFromUser( $wgUser );
 371
 372                 $s = $list->beginRecentChangesList();
 373                 foreach( $rows as $obj ) {
 374                         if( $limit == 0 ) break;
 375                         $rc = RecentChange::newFromRow( $obj );
 376                         $rc->counter = $counter++;
 377                         # Check if the page has been updated since the last visit
 378                         if( $wgShowUpdatedMarker && !empty($obj->wl_notificationtimestamp) ) {
 379                                 $rc->notificationtimestamp = ($obj->rc_timestamp >= $obj->wl_notificationtimestamp);
 380                         } else {
 381                                 $rc->notificationtimestamp = false; // Default
 382                         }
 383                         # Check the number of users watching the page
 384                         $rc->numberofWatchingusers = 0; // Default
 385                         if( $showWatcherCount && $obj->rc_namespace >= 0 ) {
 386                                 if( !isset($watcherCache[$obj->rc_namespace][$obj->rc_title]) ) {
 387                                         $watcherCache[$obj->rc_namespace][$obj->rc_title] =
 388                                                  $dbr->selectField( 'watchlist',
 389                                                         'COUNT(*)',
 390                                                         array(
 391                                                                 'wl_namespace' => $obj->rc_namespace,
 392                                                                 'wl_title' => $obj->rc_title,
 393                                                         ),
 394                                                         __METHOD__ . '-watchers' );
 395                                 }
 396                                 $rc->numberofWatchingusers = $watcherCache[$obj->rc_namespace][$obj->rc_title];
 397                         }
 398                         $s .= $list->recentChangesLine( $rc, !empty( $obj->wl_user ), $counter );
 399                         --$limit;
 400                 }
 401                 $s .= $list->endRecentChangesList();
 402                 $wgOut->addHTML( $s );
 403         }
 404
 405         /**
 406          * Return the text to be displayed above the changes
 407          *
 408          * @param $opts FormOptions
 409          * @return String: XHTML
 410          */
 411         public function doHeader( $opts ) {
 412                 global $wgScript, $wgOut;
 413
 414                 $this->setTopText( $wgOut, $opts );
 415
 416                 $defaults = $opts->getAllValues();
 417                 $nondefaults = $opts->getChangedValues();
 418                 $opts->consumeValues( array( 'namespace', 'invert', 'tagfilter' ) );
 419
 420                 $panel = array();
 421                 $panel[] = $this->optionsPanel( $defaults, $nondefaults );
 422                 $panel[] = '<hr />';
 423
 424                 $extraOpts = $this->getExtraOptions( $opts );
 425                 $extraOptsCount = count( $extraOpts );
 426                 $count = 0;
 427                 $submit = ' ' . Xml::submitbutton( wfMsg( 'allpagessubmit' ) );
 428
 429                 $out = Xml::openElement( 'table', array( 'class' => 'mw-recentchanges-table' ) );
 430                 foreach( $extraOpts as $optionRow ) {
 431                         # Add submit button to the last row only
 432                         ++$count;
 433                         $addSubmit = $count === $extraOptsCount ? $submit : '';
 434
 435                         $out .= Xml::openElement( 'tr' );
 436                         if( is_array( $optionRow ) ) {
 437                                 $out .= Xml::tags( 'td', array( 'class' => 'mw-label' ), $optionRow[0] );
 438                                 $out .= Xml::tags( 'td', array( 'class' => 'mw-input' ), $optionRow[1] . $addSubmit );
 439                         } else {
 440                                 $out .= Xml::tags( 'td', array( 'class' => 'mw-input', 'colspan' => 2 ), $optionRow . $addSubmit );
 441                         }
 442                         $out .= Xml::closeElement( 'tr' );
 443                 }
 444                 $out .= Xml::closeElement( 'table' );
 445
 446                 $unconsumed = $opts->getUnconsumedValues();
 447                 foreach( $unconsumed as $key => $value ) {
 448                         $out .= Xml::hidden( $key, $value );
 449                 }
 450
 451                 $t = $this->getTitle();
 452                 $out .= Xml::hidden( 'title', $t->getPrefixedText() );
 453                 $form = Xml::tags( 'form', array( 'action' => $wgScript ), $out );
 454                 $panel[] = $form;
 455                 $panelString = implode( "\n", $panel );
 456
 457                 $wgOut->addHTML(
 458                         Xml::fieldset( wfMsg( 'recentchanges-legend' ), $panelString, array( 'class' => 'rcoptions' ) )
 459                 );
 460
 461                 $wgOut->addHTML( ChangesList::flagLegend() );
 462
 463                 $this->setBottomText( $wgOut, $opts );
 464         }
 465
 466         /**
 467          * Get options to be displayed in a form
 468          *
 469          * @param $opts FormOptions
 470          * @return array
 471          */
 472         function getExtraOptions( $opts ){
 473                 $extraOpts = array();
 474                 $extraOpts['namespace'] = $this->namespaceFilterForm( $opts );
 475
 476                 global $wgAllowCategorizedRecentChanges;
 477                 if( $wgAllowCategorizedRecentChanges ) {
 478                         $extraOpts['category'] = $this->categoryFilterForm( $opts );
 479                 }
 480
 481                 $tagFilter = ChangeTags::buildTagFilterSelector( $opts['tagfilter'] );
 482                 if ( count($tagFilter) )
 483                         $extraOpts['tagfilter'] = $tagFilter;
 484
 485                 wfRunHooks( 'SpecialRecentChangesPanel', array( &$extraOpts, $opts ) );
 486                 return $extraOpts;
 487         }
 488
 489         /**
 490          * Send the text to be displayed above the options
 491          *
 492          * @param $out OutputPage
 493          * @param $opts FormOptions
 494          */
 495         function setTopText( OutputPage $out, FormOptions $opts ){
 496                 $out->addWikiText( wfMsgForContentNoTrans( 'recentchangestext' ) );
 497         }
 498
 499         /**
 500          * Send the text to be displayed after the options, for use in
 501          * Recentchangeslinked
 502          *
 503          * @param $out OutputPage
 504          * @param $opts FormOptions
 505          */
 506         function setBottomText( OutputPage $out, FormOptions $opts ){}
 507
 508         /**
 509          * Creates the choose namespace selection
 510          *
 511          * @param $opts FormOptions
 512          * @return string
 513          */
 514         protected function namespaceFilterForm( FormOptions $opts ) {
 515                 $nsSelect = Xml::namespaceSelector( $opts['namespace'], '' );
 516                 $nsLabel = Xml::label( wfMsg('namespace'), 'namespace' );
 517                 $invert = Xml::checkLabel( wfMsg('invert'), 'invert', 'nsinvert', $opts['invert'] );
 518                 return array( $nsLabel, "$nsSelect $invert" );
 519         }
 520
 521         /**
 522          * Create a input to filter changes by categories
 523          *
 524          * @param $opts FormOptions
 525          * @return array
 526          */
 527         protected function categoryFilterForm( FormOptions $opts ) {
 528                 list( $label, $input ) = Xml::inputLabelSep( wfMsg('rc_categories'),
 529                         'categories', 'mw-categories', false, $opts['categories'] );
 530
 531                 $input .= ' ' . Xml::checkLabel( wfMsg('rc_categories_any'),
 532                         'categories_any', 'mw-categories_any', $opts['categories_any'] );
 533
 534                 return array( $label, $input );
 535         }
 536
 537         /**
 538          * Filter $rows by categories set in $opts
 539          *
 540          * @param $rows array of database rows
 541          * @param $opts FormOptions
 542          */
 543         function filterByCategories( &$rows, FormOptions $opts ) {
 544                 $categories = array_map( 'trim', explode( "|" , $opts['categories'] ) );
 545
 546                 if( empty($categories) ) {
 547                         return;
 548                 }
 549
 550                 # Filter categories
 551                 $cats = array();
 552                 foreach( $categories as $cat ) {
 553                         $cat = trim( $cat );
 554                         if( $cat == "" ) continue;
 555                         $cats[] = $cat;
 556                 }
 557
 558                 # Filter articles
 559                 $articles = array();
 560                 $a2r = array();
 561                 foreach( $rows AS $k => $r ) {
 562                         $nt = Title::makeTitle( $r->rc_namespace, $r->rc_title );
 563                         $id = $nt->getArticleID();
 564                         if( $id == 0 ) continue; # Page might have been deleted...
 565                         if( !in_array($id, $articles) ) {
 566                                 $articles[] = $id;
 567                         }
 568                         if( !isset($a2r[$id]) ) {
 569                                 $a2r[$id] = array();
 570                         }
 571                         $a2r[$id][] = $k;
 572                 }
 573
 574                 # Shortcut?
 575                 if( !count($articles) || !count($cats) )
 576                         return ;
 577
 578                 # Look up
 579                 $c = new Categoryfinder ;
 580                 $c->seed( $articles, $cats, $opts['categories_any'] ? "OR" : "AND" ) ;
 581                 $match = $c->run();
 582
 583                 # Filter
 584                 $newrows = array();
 585                 foreach( $match AS $id ) {
 586                         foreach( $a2r[$id] AS $rev ) {
 587                                 $k = $rev;
 588                                 $newrows[$k] = $rows[$k];
 589                         }
 590                 }
 591                 $rows = $newrows;
 592         }
 593
 594         /**
 595          * Makes change an option link which carries all the other options
 596          * @param $title see Title
 597          * @param $override
 598          * @param $options
 599          */
 600         function makeOptionsLink( $title, $override, $options, $active = false ) {
 601                 global $wgUser;
 602                 $sk = $wgUser->getSkin();
 603                 $params = $override + $options;
 604                 if ( $active ) {
 605                         return $sk->link( $this->getTitle(), '<strong>' . htmlspecialchars( $title ) . '</strong>',
 606                                                           array(), $params, array( 'known' ) );
 607                 } else {
 608                         return $sk->link( $this->getTitle(), htmlspecialchars( $title ), array() , $params, array( 'known' ) );
 609                 }
 610         }
 611
 612         /**
 613          * Creates the options panel.
 614          * @param $defaults array
 615          * @param $nondefaults array
 616          */
 617         function optionsPanel( $defaults, $nondefaults ) {
 618                 global $wgLang, $wgUser, $wgRCLinkLimits, $wgRCLinkDays;
 619
 620                 $options = $nondefaults + $defaults;
 621
 622                 $note = '';
 623                 if( !wfEmptyMsg( 'rclegend', wfMsg('rclegend') ) ) {
 624                         $note .= '<div class="mw-rclegend">' . wfMsgExt( 'rclegend', array('parseinline') ) . "</div>\n";
 625                 }
 626                 if( $options['from'] ) {
 627                         $note .= wfMsgExt( 'rcnotefrom', array( 'parseinline' ),
 628                                 $wgLang->formatNum( $options['limit'] ),
 629                                 $wgLang->timeanddate( $options['from'], true ),
 630                                 $wgLang->date( $options['from'], true ),
 631                                 $wgLang->time( $options['from'], true ) ) . '<br />';
 632                 }
 633
 634                 # Sort data for display and make sure it's unique after we've added user data.
 635                 $wgRCLinkLimits[] = $options['limit'];
 636                 $wgRCLinkDays[] = $options['days'];
 637                 sort( $wgRCLinkLimits );
 638                 sort( $wgRCLinkDays );
 639                 $wgRCLinkLimits = array_unique( $wgRCLinkLimits );
 640                 $wgRCLinkDays = array_unique( $wgRCLinkDays );
 641
 642                 // limit links
 643                 foreach( $wgRCLinkLimits as $value ) {
 644                         $cl[] = $this->makeOptionsLink( $wgLang->formatNum( $value ),
 645                                 array( 'limit' => $value ), $nondefaults, $value == $options['limit'] ) ;
 646                 }
 647                 $cl = $wgLang->pipeList( $cl );
 648
 649                 // day links, reset 'from' to none
 650                 foreach( $wgRCLinkDays as $value ) {
 651                         $dl[] = $this->makeOptionsLink( $wgLang->formatNum( $value ),
 652                                 array( 'days' => $value, 'from' => '' ), $nondefaults, $value == $options['days'] ) ;
 653                 }
 654                 $dl = $wgLang->pipeList( $dl );
 655
 656
 657                 // show/hide links
 658                 $showhide = array( wfMsg( 'show' ), wfMsg( 'hide' ) );
 659                 $minorLink = $this->makeOptionsLink( $showhide[1-$options['hideminor']],
 660                         array( 'hideminor' => 1-$options['hideminor'] ), $nondefaults);
 661                 $botLink = $this->makeOptionsLink( $showhide[1-$options['hidebots']],
 662                         array( 'hidebots' => 1-$options['hidebots'] ), $nondefaults);
 663                 $anonsLink = $this->makeOptionsLink( $showhide[ 1 - $options['hideanons'] ],
 664                         array( 'hideanons' => 1 - $options['hideanons'] ), $nondefaults );
 665                 $liuLink   = $this->makeOptionsLink( $showhide[1-$options['hideliu']],
 666                         array( 'hideliu' => 1-$options['hideliu'] ), $nondefaults);
 667                 $patrLink  = $this->makeOptionsLink( $showhide[1-$options['hidepatrolled']],
 668                         array( 'hidepatrolled' => 1-$options['hidepatrolled'] ), $nondefaults);
 669                 $myselfLink = $this->makeOptionsLink( $showhide[1-$options['hidemyself']],
 670                         array( 'hidemyself' => 1-$options['hidemyself'] ), $nondefaults);
 671
 672                 $links[] = wfMsgHtml( 'rcshowhideminor', $minorLink );
 673                 $links[] = wfMsgHtml( 'rcshowhidebots', $botLink );
 674                 $links[] = wfMsgHtml( 'rcshowhideanons', $anonsLink );
 675                 $links[] = wfMsgHtml( 'rcshowhideliu', $liuLink );
 676                 if( $wgUser->useRCPatrol() )
 677                         $links[] = wfMsgHtml( 'rcshowhidepatr', $patrLink );
 678                 $links[] = wfMsgHtml( 'rcshowhidemine', $myselfLink );
 679                 $hl = $wgLang->pipeList( $links );
 680
 681                 // show from this onward link
 682                 $now = $wgLang->timeanddate( wfTimestampNow(), true );
 683                 $tl =  $this->makeOptionsLink( $now, array( 'from' => wfTimestampNow() ), $nondefaults );
 684
 685                 $rclinks = wfMsgExt( 'rclinks', array( 'parseinline', 'replaceafter' ),
 686                         $cl, $dl, $hl );
 687                 $rclistfrom = wfMsgExt( 'rclistfrom', array( 'parseinline', 'replaceafter' ), $tl );
 688                 return "{$note}$rclinks<br />$rclistfrom";
 689         }
 690 }