includes/SpecialRecentchanges.php

   1 <?php
   2 /**
   3  *
   4  * @package MediaWiki
   5  * @subpackage SpecialPage
   6  */
   7
   8 /**
   9  *
  10  */
  11 require_once( 'Feed.php' );
  12 require_once( 'ChangesList.php' );
  13 require_once( 'Revision.php' );
  14
  15 /**
  16  * Constructor
  17  */
  18 function wfSpecialRecentchanges( $par, $specialPage ) {
  19         global $wgUser, $wgOut, $wgRequest, $wgUseRCPatrol;
  20         global $wgRCShowWatchingUsers, $wgShowUpdatedMarker;
  21         global $wgAllowCategorizedRecentChanges ;
  22         $fname = 'wfSpecialRecentchanges';
  23
  24         # Get query parameters
  25         $feedFormat = $wgRequest->getVal( 'feed' );
  26
  27         $defaults = array(
  28         /* int  */ 'days' => $wgUser->getDefaultOption('rcdays'),
  29         /* int  */ 'limit' => $wgUser->getDefaultOption('rclimit'),
  30         /* bool */ 'hideminor' => false,
  31         /* bool */ 'hidebots' => true,
  32         /* bool */ 'hideliu' => false,
  33         /* bool */ 'hidepatrolled' => false,
  34         /* text */ 'from' => '',
  35         /* text */ 'namespace' => null,
  36         /* bool */ 'invert' => false,
  37         /* bool */ 'categories_any' => true,
  38         );
  39
  40         extract($defaults);
  41
  42
  43         $days = $wgUser->getOption( 'rcdays' );
  44         if ( !$days ) { $days = $defaults['days']; }
  45         $days = $wgRequest->getInt( 'days', $days );
  46
  47         $limit = $wgUser->getOption( 'rclimit' );
  48         if ( !$limit ) { $limit = $defaults['limit']; }
  49
  50         #       list( $limit, $offset ) = wfCheckLimits( 100, 'rclimit' );
  51         $limit = $wgRequest->getInt( 'limit', $limit );
  52
  53         /* order of selection: url > preferences > default */
  54         $hideminor = $wgRequest->getBool( 'hideminor', $wgUser->getOption( 'hideminor') ? true : $defaults['hideminor'] );
  55
  56
  57         # As a feed, use limited settings only
  58         if( $feedFormat ) {
  59                 global $wgFeedLimit;
  60                 if( $limit > $wgFeedLimit ) {
  61                         $options['limit'] = $wgFeedLimit;
  62                 }
  63
  64         } else {
  65
  66                 $namespace = $wgRequest->getIntOrNull( 'namespace' );
  67                 $invert = $wgRequest->getBool( 'invert', $defaults['invert'] );
  68                 $hidebots = $wgRequest->getBool( 'hidebots', $defaults['hidebots'] );
  69                 $hideliu = $wgRequest->getBool( 'hideliu', $defaults['hideliu'] );
  70                 $hidepatrolled = $wgRequest->getBool( 'hidepatrolled', $defaults['hidepatrolled'] );
  71                 $from = $wgRequest->getVal( 'from', $defaults['from'] );
  72
  73                 # Get query parameters from path
  74                 if( $par ) {
  75                         $bits = preg_split( '/\s*,\s*/', trim( $par ) );
  76                         foreach ( $bits as $bit ) {
  77                                 if ( 'hidebots' == $bit ) $hidebots = 1;
  78                                 if ( 'bots' == $bit ) $hidebots = 0;
  79                                 if ( 'hideminor' == $bit ) $hideminor = 1;
  80                                 if ( 'minor' == $bit ) $hideminor = 0;
  81                                 if ( 'hideliu' == $bit ) $hideliu = 1;
  82                                 if ( 'hidepatrolled' == $bit ) $hidepatrolled = 1;
  83
  84                                 if ( is_numeric( $bit ) ) {
  85                                         $limit = $bit;
  86                                 }
  87
  88                                 if ( preg_match( '/^limit=(\d+)$/', $bit, $m ) ) {
  89                                         $limit = $m[1];
  90                                 }
  91
  92                                 if ( preg_match( '/^days=(\d+)$/', $bit, $m ) ) {
  93                                         $days = $m[1];
  94                                 }
  95                         }
  96                 }
  97         }
  98
  99         if ( $limit < 0 || $limit > 5000 ) $limit = $defaults['limit'];
 100
 101
 102         # Database connection and caching
 103         $dbr =& wfGetDB( DB_SLAVE );
 104         extract( $dbr->tableNames( 'recentchanges', 'watchlist' ) );
 105
 106
 107         $cutoff_unixtime = time() - ( $days * 86400 );
 108         $cutoff_unixtime = $cutoff_unixtime - ($cutoff_unixtime % 86400);
 109         $cutoff = $dbr->timestamp( $cutoff_unixtime );
 110         if(preg_match('/^[0-9]{14}$/', $from) and $from > wfTimestamp(TS_MW,$cutoff)) {
 111                 $cutoff = $dbr->timestamp($from);
 112         } else {
 113                 $from = $defaults['from'];
 114         }
 115
 116         # 10 seconds server-side caching max
 117         $wgOut->setSquidMaxage( 10 );
 118
 119         # Get last modified date, for client caching
 120         # Don't use this if we are using the patrol feature, patrol changes don't update the timestamp
 121         $lastmod = $dbr->selectField( 'recentchanges', 'MAX(rc_timestamp)', false, $fname );
 122         if ( $feedFormat || !$wgUseRCPatrol ) {
 123                 if( $lastmod && $wgOut->checkLastModified( $lastmod ) ){
 124                         # Client cache fresh and headers sent, nothing more to do.
 125                         return;
 126                 }
 127         }
 128
 129         $hidem  = $hideminor ? 'AND rc_minor=0' : '';
 130         $hidem .= $hidebots ? ' AND rc_bot=0' : '';
 131         $hidem .= $hideliu ? ' AND rc_user=0' : '';
 132         $hidem .= $hidepatrolled ? ' AND rc_patrolled=0' : '';
 133         $hidem .= is_null( $namespace ) ?  '' : ' AND rc_namespace' . ($invert ? '!=' : '=') . $namespace;
 134
 135         // This is the big thing!
 136
 137         $uid = $wgUser->getID();
 138
 139         // Perform query
 140         $sql2 = "SELECT * FROM $recentchanges FORCE INDEX (rc_timestamp) " .
 141           ($uid ? "LEFT OUTER JOIN $watchlist ON wl_user={$uid} AND wl_title=rc_title AND wl_namespace=rc_namespace " : "") .
 142           "WHERE rc_timestamp > '{$cutoff}' {$hidem} " .
 143           "ORDER BY rc_timestamp DESC";
 144         $sql2 = $dbr->limitResult($sql2, $limit, 0);
 145         $res = $dbr->query( $sql2, $fname );
 146
 147         // Fetch results, prepare a batch link existence check query
 148         $rows = array();
 149         $batch = new LinkBatch;
 150         while( $row = $dbr->fetchObject( $res ) ){
 151                 $rows[] = $row;
 152                 if ( !$feedFormat ) {
 153                         // User page link
 154                         $title = Title::makeTitleSafe( NS_USER, $row->rc_user_text );
 155                         $batch->addObj( $title );
 156
 157                         // User talk
 158                         $title = Title::makeTitleSafe( NS_USER_TALK, $row->rc_user_text );
 159                         $batch->addObj( $title );
 160                 }
 161
 162         }
 163         $dbr->freeResult( $res );
 164
 165         if( $feedFormat ) {
 166                 rcOutputFeed( $rows, $feedFormat, $limit, $hideminor, $lastmod );
 167         } else {
 168
 169                 # Web output...
 170
 171                 // Run existence checks
 172                 $batch->execute();
 173                 $any = $wgRequest->getBool ( 'categories_any' , false ) ;
 174
 175                 // Output header
 176                 if ( !$specialPage->including() ) {
 177                         $wgOut->addWikiText( wfMsgForContent( "recentchangestext" ) );
 178
 179                         // Dump everything here
 180                         $nondefaults = array();
 181
 182                         wfAppendToArrayIfNotDefault( 'days', $days, $defaults, $nondefaults);
 183                         wfAppendToArrayIfNotDefault( 'limit', $limit , $defaults, $nondefaults);
 184                         wfAppendToArrayIfNotDefault( 'hideminor', $hideminor, $defaults, $nondefaults);
 185                         wfAppendToArrayIfNotDefault( 'hidebots', $hidebots, $defaults, $nondefaults);
 186                         wfAppendToArrayIfNotDefault( 'hideliu', $hideliu, $defaults, $nondefaults);
 187                         wfAppendToArrayIfNotDefault( 'hidepatrolled', $hidepatrolled, $defaults, $nondefaults);
 188                         wfAppendToArrayIfNotDefault( 'from', $from, $defaults, $nondefaults);
 189                         wfAppendToArrayIfNotDefault( 'namespace', $namespace, $defaults, $nondefaults);
 190                         wfAppendToArrayIfNotDefault( 'invert', $invert, $defaults, $nondefaults);
 191                         wfAppendToArrayIfNotDefault( 'categories_any', $any, $defaults, $nondefaults);
 192
 193                         // Add end of the texts
 194                         $wgOut->addHTML( '<div class="rcoptions">' . rcOptionsPanel( $defaults, $nondefaults ) . "\n" );
 195                         $wgOut->addHTML( rcNamespaceForm( $namespace, $invert, $nondefaults) . '</div>'."\n");
 196                 }
 197
 198                 // And now for the content
 199                 $sk = $wgUser->getSkin();
 200                 $wgOut->setSyndicated( true );
 201
 202                 $list = ChangesList::newFromUser( $wgUser );
 203
 204                 if ( $wgAllowCategorizedRecentChanges ) {
 205                         $categories = trim ( $wgRequest->getVal ( 'categories' , "" ) ) ;
 206                         $categories = str_replace ( "|" , "\n" , $categories ) ;
 207                         $categories = explode ( "\n" , $categories ) ;
 208                         rcFilterByCategories ( $rows , $categories , $any ) ;
 209                 }
 210
 211                 $s = $list->beginRecentChangesList();
 212                 $counter = 1;
 213                 foreach( $rows as $obj ){
 214                         if( $limit == 0) {
 215                                 break;
 216                         }
 217
 218                         if ( ! ( $hideminor     && $obj->rc_minor     ) &&
 219                              ! ( $hidepatrolled && $obj->rc_patrolled ) ) {
 220                                 $rc = RecentChange::newFromRow( $obj );
 221                                 $rc->counter = $counter++;
 222
 223                                 if ($wgShowUpdatedMarker
 224                                         && !empty( $obj->wl_notificationtimestamp )
 225                                         && ($obj->rc_timestamp >= $obj->wl_notificationtimestamp)) {
 226                                                 $rc->notificationtimestamp = true;
 227                                 } else {
 228                                         $rc->notificationtimestamp = false;
 229                                 }
 230
 231                                 if ($wgRCShowWatchingUsers && $wgUser->getOption( 'shownumberswatching' )) {
 232                                         $sql3 = "SELECT COUNT(*) AS n FROM $watchlist WHERE wl_title='" . $dbr->strencode($obj->rc_title) ."' AND wl_namespace=$obj->rc_namespace" ;
 233                                         $res3 = $dbr->query( $sql3, 'wfSpecialRecentChanges');
 234                                         $x = $dbr->fetchObject( $res3 );
 235                                         $rc->numberofWatchingusers = $x->n;
 236                                 } else {
 237                                         $rc->numberofWatchingusers = 0;
 238                                 }
 239                                 $s .= $list->recentChangesLine( $rc, !empty( $obj->wl_user ) );
 240                                 --$limit;
 241                         }
 242                 }
 243                 $s .= $list->endRecentChangesList();
 244                 $wgOut->addHTML( $s );
 245         }
 246 }
 247
 248 function rcFilterByCategories ( &$rows , $categories , $any ) {
 249         require_once ( 'Categoryfinder.php' ) ;
 250
 251         # Filter categories
 252         $cats = array () ;
 253         foreach ( $categories AS $cat ) {
 254                 $cat = trim ( $cat ) ;
 255                 if ( $cat == "" ) continue ;
 256                 $cats[] = $cat ;
 257         }
 258
 259         # Filter articles
 260         $articles = array () ;
 261         $a2r = array () ;
 262         foreach ( $rows AS $k => $r ) {
 263                 $nt = Title::newFromText ( $r->rc_title , $r->rc_namespace ) ;
 264                 $id = $nt->getArticleID() ;
 265                 if ( $id == 0 ) continue ; # Page might have been deleted...
 266                 if ( !in_array ( $id , $articles ) ) {
 267                         $articles[] = $id ;
 268                 }
 269                 if ( !isset ( $a2r[$id] ) ) {
 270                         $a2r[$id] = array() ;
 271                 }
 272                 $a2r[$id][] = $k ;
 273         }
 274
 275         # Shortcut?
 276         if ( count ( $articles ) == 0 OR count ( $cats ) == 0 )
 277                 return ;
 278
 279         # Look up
 280         $c = new Categoryfinder ;
 281         $c->seed ( $articles , $cats , $any ? "OR" : "AND" ) ;
 282         $match = $c->run () ;
 283
 284         # Filter
 285         $newrows = array () ;
 286         foreach ( $match AS $id ) {
 287                 foreach ( $a2r[$id] AS $rev ) {
 288                         $k = $rev ;
 289                         $newrows[$k] = $rows[$k] ;
 290                 }
 291         }
 292         $rows = $newrows ;
 293 }
 294
 295 function rcOutputFeed( $rows, $feedFormat, $limit, $hideminor, $lastmod ) {
 296         global $messageMemc, $wgDBname, $wgFeedCacheTimeout;
 297         global $wgFeedClasses, $wgTitle, $wgSitename, $wgContLanguageCode;
 298
 299         if( !isset( $wgFeedClasses[$feedFormat] ) ) {
 300                 wfHttpError( 500, "Internal Server Error", "Unsupported feed type." );
 301                 return false;
 302         }
 303
 304         $timekey = "$wgDBname:rcfeed:$feedFormat:timestamp";
 305         $key = "$wgDBname:rcfeed:$feedFormat:limit:$limit:minor:$hideminor";
 306
 307         $feedTitle = $wgSitename . ' - ' . wfMsgForContent( 'recentchanges' ) .
 308                 ' [' . $wgContLanguageCode . ']';
 309         $feed = new $wgFeedClasses[$feedFormat](
 310                 $feedTitle,
 311                 htmlspecialchars( wfMsgForContent( 'recentchangestext' ) ),
 312                 $wgTitle->getFullUrl() );
 313
 314         /**
 315          * Bumping around loading up diffs can be pretty slow, so where
 316          * possible we want to cache the feed output so the next visitor
 317          * gets it quick too.
 318          */
 319         $cachedFeed = false;
 320         if( ( $wgFeedCacheTimeout > 0 ) && ( $feedLastmod = $messageMemc->get( $timekey ) ) ) {
 321                 /**
 322                  * If the cached feed was rendered very recently, we may
 323                  * go ahead and use it even if there have been edits made
 324                  * since it was rendered. This keeps a swarm of requests
 325                  * from being too bad on a super-frequently edited wiki.
 326                  */
 327                 if( time() - wfTimestamp( TS_UNIX, $feedLastmod )
 328                                 < $wgFeedCacheTimeout
 329                         || wfTimestamp( TS_UNIX, $feedLastmod )
 330                                 > wfTimestamp( TS_UNIX, $lastmod ) ) {
 331                         wfDebug( "RC: loading feed from cache ($key; $feedLastmod; $lastmod)...\n" );
 332                         $cachedFeed = $messageMemc->get( $key );
 333                 } else {
 334                         wfDebug( "RC: cached feed timestamp check failed ($feedLastmod; $lastmod)\n" );
 335                 }
 336         }
 337         if( is_string( $cachedFeed ) ) {
 338                 wfDebug( "RC: Outputting cached feed\n" );
 339                 $feed->httpHeaders();
 340                 echo $cachedFeed;
 341         } else {
 342                 wfDebug( "RC: rendering new feed and caching it\n" );
 343                 ob_start();
 344                 rcDoOutputFeed( $rows, $feed );
 345                 $cachedFeed = ob_get_contents();
 346                 ob_end_flush();
 347
 348                 $expire = 3600 * 24; # One day
 349                 $messageMemc->set( $key, $cachedFeed );
 350                 $messageMemc->set( $timekey, wfTimestamp( TS_MW ), $expire );
 351         }
 352         return true;
 353 }
 354
 355 function rcDoOutputFeed( $rows, &$feed ) {
 356         global $wgSitename, $wgFeedClasses, $wgContLanguageCode;
 357         $fname = 'rcDoOutputFeed';
 358         wfProfileIn( $fname );
 359
 360         $feed->outHeader();
 361
 362         # Merge adjacent edits by one user
 363         $sorted = array();
 364         $n = 0;
 365         foreach( $rows as $obj ) {
 366                 if( $n > 0 &&
 367                         $obj->rc_namespace >= 0 &&
 368                         $obj->rc_cur_id == $sorted[$n-1]->rc_cur_id &&
 369                         $obj->rc_user_text == $sorted[$n-1]->rc_user_text ) {
 370                         $sorted[$n-1]->rc_last_oldid = $obj->rc_last_oldid;
 371                 } else {
 372                         $sorted[$n] = $obj;
 373                         $n++;
 374                 }
 375                 $first = false;
 376         }
 377
 378         foreach( $sorted as $obj ) {
 379                 $title = Title::makeTitle( $obj->rc_namespace, $obj->rc_title );
 380                 $talkpage = $title->getTalkPage();
 381                 $item = new FeedItem(
 382                         $title->getPrefixedText(),
 383                         rcFormatDiff( $obj ),
 384                         $title->getFullURL(),
 385                         $obj->rc_timestamp,
 386                         $obj->rc_user_text,
 387                         $talkpage->getFullURL()
 388                         );
 389                 $feed->outItem( $item );
 390         }
 391         $feed->outFooter();
 392         wfProfileOut( $fname );
 393 }
 394
 395 /**
 396  *
 397  */
 398 function rcCountLink( $lim, $d, $page='Recentchanges', $more='' ) {
 399         global $wgUser, $wgLang, $wgContLang;
 400         $sk = $wgUser->getSkin();
 401         $s = $sk->makeKnownLink( $wgContLang->specialPage( $page ),
 402           ($lim ? $wgLang->formatNum( "{$lim}" ) : wfMsg( 'recentchangesall' ) ), "{$more}" .
 403           ($d ? "days={$d}&" : '') . 'limit='.$lim );
 404         return $s;
 405 }
 406
 407 /**
 408  *
 409  */
 410 function rcDaysLink( $lim, $d, $page='Recentchanges', $more='' ) {
 411         global $wgUser, $wgLang, $wgContLang;
 412         $sk = $wgUser->getSkin();
 413         $s = $sk->makeKnownLink( $wgContLang->specialPage( $page ),
 414           ($d ? $wgLang->formatNum( "{$d}" ) : wfMsg( 'recentchangesall' ) ), $more.'days='.$d .
 415           ($lim ? '&limit='.$lim : '') );
 416         return $s;
 417 }
 418
 419 /**
 420  * Used by Recentchangeslinked
 421  */
 422 function rcDayLimitLinks( $days, $limit, $page='Recentchanges', $more='', $doall = false, $minorLink = '',
 423         $botLink = '', $liuLink = '', $patrLink = '' ) {
 424         if ($more != '') $more .= '&';
 425         $cl = rcCountLink( 50, $days, $page, $more ) . ' | ' .
 426           rcCountLink( 100, $days, $page, $more  ) . ' | ' .
 427           rcCountLink( 250, $days, $page, $more  ) . ' | ' .
 428           rcCountLink( 500, $days, $page, $more  ) .
 429           ( $doall ? ( ' | ' . rcCountLink( 0, $days, $page, $more ) ) : '' );
 430         $dl = rcDaysLink( $limit, 1, $page, $more  ) . ' | ' .
 431           rcDaysLink( $limit, 3, $page, $more  ) . ' | ' .
 432           rcDaysLink( $limit, 7, $page, $more  ) . ' | ' .
 433           rcDaysLink( $limit, 14, $page, $more  ) . ' | ' .
 434           rcDaysLink( $limit, 30, $page, $more  ) .
 435           ( $doall ? ( ' | ' . rcDaysLink( $limit, 0, $page, $more ) ) : '' );
 436         $shm = wfMsg( 'showhideminor', $minorLink, $botLink, $liuLink, $patrLink );
 437         $note = wfMsg( 'rclinks', $cl, $dl, $shm );
 438         return $note;
 439 }
 440
 441
 442 /**
 443  * Makes change an option link which carries all the other options
 444  */
 445 function makeOptionsLink( $title, $override, $options ) {
 446         global $wgUser, $wgLang, $wgContLang;
 447         $sk = $wgUser->getSkin();
 448         return $sk->makeKnownLink( $wgContLang->specialPage( 'Recentchanges' ),
 449                 $title, wfArrayToCGI( $override, $options ) );
 450 }
 451
 452 /**
 453  * Creates the options panel
 454  */
 455 function rcOptionsPanel( $defaults, $nondefaults ) {
 456         global $wgLang;
 457
 458         $options = $nondefaults + $defaults;
 459
 460         if( $options['from'] )
 461                 $note = wfMsg( 'rcnotefrom', $wgLang->formatNum( $options['limit'] ), $wgLang->timeanddate( $options['from'], true ) );
 462         else
 463                 $note = wfMsg( 'rcnote', $wgLang->formatNum( $options['limit'] ), $wgLang->formatNum( $options['days'] ) );
 464
 465         // limit links
 466         $cl = '';
 467         $options_limit = array(50, 100, 250, 500);
 468         $i = 0;
 469         while ( $i+1 < count($options_limit) ) {
 470                 $cl .=  makeOptionsLink( $options_limit[$i], array( 'limit' => $options_limit[$i] ), $nondefaults) . ' | ' ;
 471                 $i++;
 472         }
 473         $cl .=  makeOptionsLink( $options_limit[$i], array( 'limit' => $options_limit[$i] ), $nondefaults) ;
 474
 475         // day links, reset 'from' to none
 476         $dl = '';
 477         $options_days = array(1, 3, 7, 14, 30);
 478         $i = 0;
 479         while ( $i+1 < count($options_days) ) {
 480                 $dl .=  makeOptionsLink( $options_days[$i], array( 'days' => $options_days[$i], 'from' => '' ), $nondefaults) . ' | ' ;
 481                 $i++;
 482         }
 483         $dl .=  makeOptionsLink( $options_days[$i], array( 'days' => $options_days[$i], 'from' => '' ), $nondefaults) ;
 484
 485         // show/hide links
 486         $showhide = array( wfMsg( 'show' ), wfMsg( 'hide' ));
 487         $minorLink = makeOptionsLink( $showhide[1-$options['hideminor']],
 488                 array( 'hideminor' => 1-$options['hideminor'] ), $nondefaults);
 489         $botLink = makeOptionsLink( $showhide[1-$options['hidebots']],
 490                 array( 'hidebots' => 1-$options['hidebots'] ), $nondefaults);
 491         $liuLink   = makeOptionsLink( $showhide[1-$options['hideliu']],
 492                 array( 'hideliu' => 1-$options['hideliu'] ), $nondefaults);
 493         $patrLink  = makeOptionsLink( $showhide[1-$options['hidepatrolled']],
 494                 array( 'hidepatrolled' => 1-$options['hidepatrolled'] ), $nondefaults);
 495
 496         $hl = wfMsg( 'showhideminor', $minorLink, $botLink, $liuLink, $patrLink );
 497
 498         // show from this onward link
 499         $now = $wgLang->timeanddate( wfTimestampNow(), true );
 500         $tl =  makeOptionsLink( $now, array( 'from' => wfTimestampNow()), $nondefaults );
 501
 502         $rclinks = wfMsg( 'rclinks', $cl, $dl, $hl );
 503         $rclistfrom = wfMsg( 'rclistfrom', $tl );
 504         return "$note<br />$rclinks<br />$rclistfrom";
 505
 506 }
 507
 508 /**<F2>
 509  * Creates the choose namespace selection
 510  *
 511  * @access private
 512  *
 513  * @param mixed $namespace The key of the currently selected namespace, empty string
 514  *              if there is none
 515  * @param bool $invert Whether to invert the namespace selection
 516  * @param array $nondefaults An array of non default options to be remembered
 517  *
 518  * @return string
 519  */
 520 function rcNamespaceForm ( $namespace, $invert, $nondefaults ) {
 521         global $wgContLang, $wgScript, $wgAllowCategorizedRecentChanges, $wgRequest;
 522         $t = Title::makeTitle( NS_SPECIAL, 'Recentchanges' );
 523
 524         $namespaceselect = HTMLnamespaceselector($namespace, '');
 525         $submitbutton = '<input type="submit" value="' . wfMsgHtml( 'allpagessubmit' ) . "\" />\n";
 526         $invertbox = "<input type='checkbox' name='invert' value='1' id='nsinvert'" . ( $invert ? ' checked="checked"' : '' ) . ' />';
 527
 528         if ( $wgAllowCategorizedRecentChanges ) {
 529                 $categories = trim ( $wgRequest->getVal ( 'categories' , "" ) ) ;
 530                 $any = $wgRequest->getBool ( 'categories_any' , true ) ;
 531                 $cb_arr = array( 'type' => 'checkbox', 'name' => 'categories_any', 'value' => "1" ) ;
 532                 if ( $any ) $cb_arr['checked'] = "checked" ;
 533                 $catbox = "<br/>" ;
 534                 $catbox .= wfMsg('rc_categories') . " ";
 535                 $catbox .= wfElement('input', array( 'type' => 'text', 'name' => 'categories', 'value' => $categories));
 536                 $catbox .= " &nbsp;" ;
 537                 $catbox .= wfElement('input', $cb_arr );
 538                 $catbox .= wfMsg('rc_categories_any');
 539         } else {
 540                 $catbox = "" ;
 541         }
 542
 543         $out = "<div class='namespacesettings'><form method='get' action='{$wgScript}'>\n";
 544
 545         foreach ( $nondefaults as $key => $value ) {
 546                 if ($key != 'namespace' && $key != 'invert')
 547                         $out .= wfElement('input', array( 'type' => 'hidden', 'name' => $key, 'value' => $value));
 548         }
 549
 550         $out .= '<input type="hidden" name="title" value="'.$t->getPrefixedText().'" />';
 551         $out .= "
 552 <div id='nsselect' class='recentchanges'>
 553         <label for='namespace'>" . wfMsgHtml('namespace') . "</label>
 554         {$namespaceselect}{$submitbutton}{$invertbox} <label for='nsinvert'>" . wfMsgHtml('invert') . "</label>{$catbox}\n</div>";
 555         $out .= '</form></div>';
 556         return $out;
 557 }
 558
 559
 560 /**
 561  * Format a diff for the newsfeed
 562  */
 563 function rcFormatDiff( $row ) {
 564         global $wgFeedDiffCutoff, $wgContLang;
 565         $fname = 'rcFormatDiff';
 566         wfProfileIn( $fname );
 567
 568         require_once( 'DifferenceEngine.php' );
 569         $completeText = '<p>' . htmlspecialchars( $row->rc_comment ) . "</p>\n";
 570
 571         if( $row->rc_namespace >= 0 ) {
 572                 if( $row->rc_last_oldid ) {
 573                         wfProfileIn( "$fname-dodiff" );
 574
 575                         $titleObj = Title::makeTitle( $row->rc_namespace, $row->rc_title );
 576                         $de = new DifferenceEngine( $titleObj, $row->rc_last_oldid, $row->rc_this_oldid );
 577                         $diffText = $de->getDiff( wfMsg( 'revisionasof', $wgContLang->timeanddate( $row->rc_timestamp ) ),
 578                                 wfMsg( 'currentrev' ) );
 579
 580                         if ( strlen( $diffText ) > $wgFeedDiffCutoff ) {
 581                                 // Omit large diffs
 582                                 $diffLink = $titleObj->escapeFullUrl(
 583                                         'diff=' . $row->rc_this_oldid .
 584                                         '&oldid=' . $row->rc_last_oldid );
 585                                 $diffText = '<a href="' .
 586                                         $diffLink .
 587                                         '">' .
 588                                         htmlspecialchars( wfMsgForContent( 'difference' ) ) .
 589                                         '</a>';
 590                         } elseif ( $diffText === false ) {
 591                                 // Error in diff engine, probably a missing revision
 592                                 $diffText = "<p>Can't load revision $row->rc_this_oldid</p>";
 593                         } else {
 594                                 // Diff output fine, clean up any illegal UTF-8
 595                                 $diffText = UtfNormal::cleanUp( $diffText );
 596                         }
 597                         wfProfileOut( "$fname-dodiff" );
 598                 } else {
 599                         $rev = Revision::newFromId( $row->rc_this_oldid );
 600                         if( is_null( $rev ) ) {
 601                                 $newtext = '';
 602                         } else {
 603                                 $newtext = $rev->getText();
 604                         }
 605                         $diffText = '<p><b>' . wfMsg( 'newpage' ) . '</b></p>' .
 606                                 '<div>' . nl2br( htmlspecialchars( $newtext ) ) . '</div>';
 607                 }
 608                 $completeText .= $diffText;
 609         }
 610
 611         wfProfileOut( $fname );
 612         return $completeText;
 613 }
 614
 615 ?>