includes/ImagePage.php

   1 <?php
   2 /**
   3  * @package MediaWiki
   4  */
   5
   6 /**
   7  *
   8  */
   9 if( !defined( 'MEDIAWIKI' ) )
  10         die();
  11
  12 require_once( 'Image.php' );
  13
  14 /**
  15  * Special handling for image description pages
  16  * @package MediaWiki
  17  */
  18 class ImagePage extends Article {
  19
  20         /* private */ var $img;  // Image object this page is shown for
  21
  22         function view() {
  23                 global $wgUseExternalEditor, $wgOut ;
  24
  25                 $this->img  = new Image( $this->mTitle );
  26
  27                 if( $this->mTitle->getNamespace() == NS_IMAGE  ) {
  28                         if( $this->img->exists() ) {
  29                                 $this->showTOC();
  30                         }
  31                         $this->openShowImage();
  32
  33                         # No need to display noarticletext, we use our own message, output in openShowImage()
  34                         if( $this->getID() ) {
  35                                 Article::view();
  36                         } else {
  37                                 # Just need to set the right headers
  38                                 $wgOut->setArticleFlag( true );
  39                                 $wgOut->setRobotpolicy( 'index,follow' );
  40                                 $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
  41                                 $wgOut->addMetaTags();
  42                                 $this->viewUpdates();
  43                         }
  44
  45                         $this->closeShowImage();
  46                         $this->imageHistory();
  47                         $this->imageLinks();
  48                         if( $this->img->exists() ) {
  49                                 $this->showEXIFdata();
  50                         }
  51                 } else {
  52                         Article::view();
  53                 }
  54         }
  55
  56         function showTOC() {
  57                 global $wgOut, $wgShowEXIF, $wgLang;
  58
  59                 $r= '<div class="imagepagetoc"><table id="toc" border="0"><tr><td valign="top"><b>'.wfMsg( 'toc' ).'</b><br />';
  60                 $r .= '<a href="#toc">'        . $wgLang->getNStext( NS_IMAGE ) . '</a href> - ';
  61                 $r .= '<a href="#imghistory">' . wfMsg( 'imghistory' ) . '</a href> - ';
  62                 $r .= '<a href="#imagelinks">' . wfMsg( 'imagelinks' ) . '</a href>';
  63                 if ( $wgShowEXIF ) {
  64                         $r .= ' - <a href="#exifdata">' . wfMsg( 'exifdata' ) . '</a>';
  65                 }
  66
  67
  68                 $wgOut->addHTML( $r . '</td></tr></table></div>' );
  69
  70         }
  71
  72         function showEXIFdata() {
  73                 global $wgOut, $wgShowEXIF;
  74                 if( !$wgShowEXIF ) {
  75                         return;
  76                 }
  77
  78                 # Get the EXIF data
  79                 $exif = $this->img->getExifData();
  80                 if( count ( $exif ) == 0 ) {
  81                         return; # No EXIF data available
  82                 }
  83
  84                 # Create the table
  85                 $r = '<h2 id="exifdata">'. htmlspecialchars( wfMsg( 'exifdata' ) ) . "</h2>\n";
  86                 $r .= "<table class=\"exif\">\n" ;
  87                 $n = 0;
  88                 foreach( $exif as $k => $v ) {
  89                         if( $n % 2 == 0 ) {
  90                                 $r .= '<tr>';
  91                         }
  92                         $r .= '<th>' . wfMsg( 'exif-' . strtolower( $k ) ) . "</th>\n";
  93                         $r .= '<td>' . htmlspecialchars( $v ) . "</td>\n";
  94                         if ( $n % 2 == 1 ) {
  95                                 $r .= "</tr>\n";
  96                         } else {
  97                                 $r .= "<td class='spacer'>&nbsp;</td>\n";
  98                         }
  99                         $n++;
 100                 }
 101                 if ( $n % 2 == 1 ) {
 102                         $r .= "<th></th><td></td></tr>\n";
 103                 }
 104
 105                 $wgOut->addHTML( $r . "</table>\n" );
 106         }
 107
 108         function openShowImage()
 109         {
 110                 global $wgOut, $wgUser, $wgImageLimits, $wgRequest,
 111                        $wgUseImageResize, $wgRepositoryBaseUrl,
 112                        $wgUseExternalEditor, $wgServer;
 113                 $full_url  = $this->img->getViewURL();
 114                 $anchoropen = '';
 115                 $anchorclose = '';
 116
 117                 if( $wgUser->getOption( 'imagesize' ) == '' ) {
 118                         $sizeSel = User::getDefaultOption( 'imagesize' );
 119                 } else {
 120                         $sizeSel = IntVal( $wgUser->getOption( 'imagesize' ) );
 121                 }
 122                 if( !isset( $wgImageLimits[$sizeSel] ) ) {
 123                         $sizeSel = User::getDefaultOption( 'imagesize' );
 124                 }
 125                 $max = $wgImageLimits[$sizeSel];
 126                 $maxWidth = $max[0];
 127                 $maxHeight = $max[1];
 128                 $sk = $wgUser->getSkin();
 129
 130                 if ( $this->img->exists() ) {
 131                         if ( $this->img->getType() != '' ) {
 132                                 # image
 133                                 $width = $this->img->getWidth();
 134                                 $height = $this->img->getHeight();
 135                                 # "Download high res version" link below the image
 136                                 $msg = wfMsg('showbigimage', $width, $height, intval( $this->img->getSize()/1024 ) );
 137                                 if ( $width > $maxWidth ) {
 138                                         $height = floor( $height * $maxWidth / $width );
 139                                         $width  = $maxWidth;
 140                                 }
 141                                 if ( $height > $maxHeight ) {
 142                                         $width = floor( $width * $maxHeight / $height );
 143                                         $height = $maxHeight;
 144                                 }
 145                                 if ( $width != $this->img->getWidth() || $height != $this->img->getHeight() ) {
 146                                         if( $wgUseImageResize ) {
 147                                                 $thumbnail = $this->img->getThumbnail( $width );
 148                                                 $url = $thumbnail->getUrl();
 149                                         } else {
 150                                                 # No resize ability? Show the full image, but scale
 151                                                 # it down in the browser so it fits on the page.
 152                                                 $url = $full_url;
 153                                         }
 154                                         $anchoropen  = "<a href=\"{$full_url}\">";
 155                                         $anchorclose = "</a><br />\n$anchoropen{$msg}</a>";
 156                                 } else {
 157                                         $url = $full_url;
 158                                 }
 159                                 $s = '<div class="fullImageLink">' . $anchoropen .
 160                                      "<img border=\"0\" src=\"{$url}\" width=\"{$width}\" height=\"{$height}\" alt=\"" .
 161                                      htmlspecialchars( $wgRequest->getVal( 'image' ) ).'" />' . $anchorclose . '</div>';
 162                         } else {
 163                                 $s = "<div class=\"fullMedia\">" . $sk->makeMediaLink( $this->img->getName(),'' ) . '</div>';
 164                         }
 165                         $wgOut->addHTML( $s );
 166                         if($this->img->fromSharedDirectory) {
 167                                 $sharedtext="<div class=\"sharedUploadNotice\">" . wfMsg("sharedupload");
 168                                 if($wgRepositoryBaseUrl) {
 169                                         $sharedtext .= " ". wfMsg("shareduploadwiki",$wgRepositoryBaseUrl . urlencode($this->mTitle->getDBkey()));
 170                                 }
 171                                 $sharedtext.="</div>";
 172                                 $wgOut->addWikiText($sharedtext);
 173                         }
 174
 175                 } else {
 176                         # Image does not exist
 177                         $wgOut->addWikiText( wfMsg( 'noimage', $this->getUploadUrl() ) );
 178                 }
 179         }
 180
 181         function getUploadUrl() {
 182                 global $wgServer;
 183                 $uploadTitle = Title::makeTitle( NS_SPECIAL, 'Upload' );
 184                 return $wgServer . $uploadTitle->getLocalUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) );
 185         }
 186
 187
 188         function uploadLinksBox()
 189         {
 190                 global $wgUser,$wgOut;
 191                 $sk = $wgUser->getSkin();
 192                 $wgOut->addHTML( '<br /><ul><li>' );
 193                 $wgOut->addWikiText( '<div>'. wfMsg( 'uploadnewversion', $this->getUploadUrl() ) .'</div>' );
 194                 $wgOut->addHTML( '</li><li>' );
 195                 $wgOut->addHTML( $sk->makeKnownLinkObj( $this->mTitle,
 196                         wfMsg( 'edit-externally' ), "action=edit&externaledit=true&mode=file" ) );
 197                 $wgOut->addWikiText( '<div>' .  wfMsg('edit-externally-help') . '</div>' );
 198                 $wgOut->addHTML( '</li></ul>' );
 199         }
 200
 201         function closeShowImage()
 202         {
 203                 # For overloading
 204
 205         }
 206
 207         /**
 208          * If the page we've just displayed is in the "Image" namespace,
 209          * we follow it with an upload history of the image and its usage.
 210          */
 211         function imageHistory()
 212         {
 213                 global $wgUser, $wgOut, $wgUseExternalEditor;
 214
 215                 $sk = $wgUser->getSkin();
 216
 217                 $line = $this->img->nextHistoryLine();
 218
 219                 if ( $line ) {
 220                         $list =& new ImageHistoryList( $sk );
 221                         $s = $list->beginImageHistoryList() .
 222                                 $list->imageHistoryLine( true, $line->img_timestamp,
 223                                         $this->mTitle->getDBkey(),  $line->img_user,
 224                                         $line->img_user_text, $line->img_size, $line->img_description );
 225
 226                         while ( $line = $this->img->nextHistoryLine() ) {
 227                                 $s .= $list->imageHistoryLine( false, $line->img_timestamp,
 228                                 $line->oi_archive_name, $line->img_user,
 229                                 $line->img_user_text, $line->img_size, $line->img_description );
 230                         }
 231                         $s .= $list->endImageHistoryList();
 232                 } else { $s=''; }
 233                 $wgOut->addHTML( $s );
 234
 235                 # Exist check because we don't want to show this on pages where an image
 236                 # doesn't exist along with the noimage message, that would suck. -ævar
 237                 if( $wgUseExternalEditor && $this->img->exists() ) {
 238                         $this->uploadLinksBox();
 239                 }
 240
 241         }
 242
 243         function imageLinks()
 244         {
 245                 global $wgUser, $wgOut;
 246
 247                 $wgOut->addHTML( '<h2 id="imagelinks">' . wfMsg( 'imagelinks' ) . "</h2>\n" );
 248
 249                 $dbr =& wfGetDB( DB_SLAVE );
 250                 $page = $dbr->tableName( 'page' );
 251                 $imagelinks = $dbr->tableName( 'imagelinks' );
 252
 253                 $sql = "SELECT page_namespace,page_title FROM $imagelinks,$page WHERE il_to=" .
 254                   $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=page_id"
 255                   . " LIMIT 500"; # quickie emergency brake
 256                 $res = $dbr->query( $sql, "ImagePage::imageLinks" );
 257
 258                 if ( 0 == $dbr->numRows( $res ) ) {
 259                         $wgOut->addHtml( '<p>' . wfMsg( "nolinkstoimage" ) . "</p>\n" );
 260                         return;
 261                 }
 262                 $wgOut->addHTML( '<p>' . wfMsg( 'linkstoimage' ) .  "</p>\n<ul>" );
 263
 264                 $sk = $wgUser->getSkin();
 265                 while ( $s = $dbr->fetchObject( $res ) ) {
 266                         $name = Title::MakeTitle( $s->page_namespace, $s->page_title );
 267                         $link = $sk->makeKnownLinkObj( $name, "" );
 268                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 269                 }
 270                 $wgOut->addHTML( "</ul>\n" );
 271         }
 272
 273         function delete()
 274         {
 275                 global $wgUser, $wgOut, $wgRequest;
 276
 277                 $confirm = $wgRequest->getBool( 'wpConfirmB' );
 278                 $image = $wgRequest->getVal( 'image' );
 279                 $oldimage = $wgRequest->getVal( 'oldimage' );
 280
 281                 # Only sysops can delete images. Previously ordinary users could delete
 282                 # old revisions, but this is no longer the case.
 283                 if ( !$wgUser->isAllowed('delete') ) {
 284                         $wgOut->sysopRequired();
 285                         return;
 286                 }
 287                 if ( wfReadOnly() ) {
 288                         $wgOut->readOnlyPage();
 289                         return;
 290                 }
 291
 292                 # Better double-check that it hasn't been deleted yet!
 293                 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
 294                 if ( ( !is_null( $image ) )
 295                   && ( '' == trim( $image ) ) ) {
 296                         $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
 297                         return;
 298                 }
 299
 300                 $this->img  = new Image( $this->mTitle );
 301
 302                 # Deleting old images doesn't require confirmation
 303                 if ( !is_null( $oldimage ) || $confirm ) {
 304                         if( $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 305                                 $this->doDelete();
 306                         } else {
 307                                 $wgOut->fatalError( wfMsg( 'sessionfailure' ) );
 308                         }
 309                         return;
 310                 }
 311
 312                 if ( !is_null( $image ) ) {
 313                         $q = '&image=' . urlencode( $image );
 314                 } else if ( !is_null( $oldimage ) ) {
 315                         $q = '&oldimage=' . urlencode( $oldimage );
 316                 } else {
 317                         $q = '';
 318                 }
 319                 return $this->confirmDelete( $q, $wgRequest->getText( 'wpReason' ) );
 320         }
 321
 322         function doDelete()
 323         {
 324                 global $wgOut, $wgUser, $wgContLang, $wgRequest;
 325                 global $wgUseSquid, $wgInternalServer, $wgPostCommitUpdateList;
 326                 $fname = 'ImagePage::doDelete';
 327
 328                 $reason = $wgRequest->getVal( 'wpReason' );
 329                 $oldimage = $wgRequest->getVal( 'oldimage' );
 330
 331                 $dbw =& wfGetDB( DB_MASTER );
 332
 333                 if ( !is_null( $oldimage ) ) {
 334                         if ( strlen( $oldimage ) < 16 ) {
 335                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 336                                 return;
 337                         }
 338                         if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 339                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 340                                 return;
 341                         }
 342
 343                         # Invalidate description page cache
 344                         $this->mTitle->invalidateCache();
 345
 346                         # Squid purging
 347                         if ( $wgUseSquid ) {
 348                                 $urlArr = Array(
 349                                         $wgInternalServer.wfImageArchiveUrl( $oldimage ),
 350                                         $wgInternalServer.$this->mTitle->getFullURL()
 351                                 );
 352                                 wfPurgeSquidServers($urlArr);
 353                         }
 354                         $this->doDeleteOldImage( $oldimage );
 355                         $dbw->delete( 'oldimage', array( 'oi_archive_name' => $oldimage ) );
 356                         $deleted = $oldimage;
 357                 } else {
 358                         $image = $this->mTitle->getDBkey();
 359                         $dest = wfImageDir( $image );
 360                         $archive = wfImageDir( $image );
 361
 362                         # Delete the image file if it exists; due to sync problems
 363                         # or manual trimming sometimes the file will be missing.
 364                         $targetFile = "{$dest}/{$image}";
 365                         if( file_exists( $targetFile ) && ! @unlink( $targetFile ) ) {
 366                                 # If the deletion operation actually failed, bug out:
 367                                 $wgOut->fileDeleteError( $targetFile );
 368                                 return;
 369                         }
 370                         $dbw->delete( 'image', array( 'img_name' => $image ) );
 371                         $res = $dbw->select( 'oldimage', array( 'oi_archive_name' ), array( 'oi_name' => $image ) );
 372
 373                         # Purge archive URLs from the squid
 374                         $urlArr = Array();
 375                         while ( $s = $dbw->fetchObject( $res ) ) {
 376                                 $this->doDeleteOldImage( $s->oi_archive_name );
 377                                 $urlArr[] = $wgInternalServer.wfImageArchiveUrl( $s->oi_archive_name );
 378                         }
 379
 380                         # And also the HTML of all pages using this image
 381                         $linksTo = $this->img->getLinksTo();
 382                         if ( $wgUseSquid ) {
 383                                 $u = SquidUpdate::newFromTitles( $linksTo, $urlArr );
 384                                 array_push( $wgPostCommitUpdateList, $u );
 385                         }
 386
 387                         $dbw->delete( 'oldimage', array( 'oi_name' => $image ) );
 388
 389                         # Image itself is now gone, and database is cleaned.
 390                         # Now we remove the image description page.
 391
 392                         $article = new Article( $this->mTitle );
 393                         $article->doDeleteArticle( $reason ); # ignore errors
 394
 395                         # Invalidate parser cache and client cache for pages using this image
 396                         # This is left until relatively late to reduce lock time
 397                         Title::touchArray( $linksTo );
 398
 399                         /* Delete thumbnails and refresh image metadata cache */
 400                         $this->img->purgeCache();
 401
 402
 403                         $deleted = $image;
 404                 }
 405
 406                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 407                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 408
 409                 $sk = $wgUser->getSkin();
 410                 $loglink = $sk->makeKnownLinkObj(
 411                         Title::makeTitle( NS_SPECIAL, 'Log/delete' ),
 412                         wfMsg( 'deletionlog' ) );
 413
 414                 $text = wfMsg( 'deletedtext', $deleted, $loglink );
 415
 416                 $wgOut->addHTML( '<p>' . $text . "</p>\n" );
 417                 $wgOut->returnToMain( false, $this->mTitle->getPrefixedText() );
 418         }
 419
 420         function doDeleteOldImage( $oldimage )
 421         {
 422                 global $wgOut;
 423
 424                 $name = substr( $oldimage, 15 );
 425                 $archive = wfImageArchiveDir( $name );
 426
 427                 # Delete the image if it exists. Sometimes the file will be missing
 428                 # due to manual intervention or weird sync problems; treat that
 429                 # condition gracefully and continue to delete the database entry.
 430                 # Also some records may end up with an empty oi_archive_name field
 431                 # if the original file was missing when a new upload was made;
 432                 # don't try to delete the directory then!
 433                 #
 434                 $targetFile = "{$archive}/{$oldimage}";
 435                 if( $oldimage != '' && file_exists( $targetFile ) && !@unlink( $targetFile ) ) {
 436                         # If we actually have a file and can't delete it, throw an error.
 437                         $wgOut->fileDeleteError( "{$archive}/{$oldimage}" );
 438                 } else {
 439                         # Log the deletion
 440                         $log = new LogPage( 'delete' );
 441                         $log->addEntry( 'delete', $this->mTitle, wfMsg('deletedrevision',$oldimage) );
 442                 }
 443         }
 444
 445         function revert()
 446         {
 447                 global $wgOut, $wgRequest, $wgUser;
 448                 global $wgUseSquid, $wgInternalServer, $wgDeferredUpdateList;
 449
 450                 $oldimage = $wgRequest->getText( 'oldimage' );
 451                 if ( strlen( $oldimage ) < 16 ) {
 452                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 453                         return;
 454                 }
 455                 if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 456                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 457                         return;
 458                 }
 459
 460                 if ( wfReadOnly() ) {
 461                         $wgOut->readOnlyPage();
 462                         return;
 463                 }
 464                 if( $wgUser->isAnon() ) {
 465                         $wgOut->errorpage( 'uploadnologin', 'uploadnologintext' );
 466                         return;
 467                 }
 468                 if ( ! $this->mTitle->userCanEdit() ) {
 469                         $wgOut->sysopRequired();
 470                         return;
 471                 }
 472                 if( !$wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 473                         $wgOut->errorpage( 'internalerror', 'sessionfailure' );
 474                         return;
 475                 }
 476                 $name = substr( $oldimage, 15 );
 477
 478                 $dest = wfImageDir( $name );
 479                 $archive = wfImageArchiveDir( $name );
 480                 $curfile = "{$dest}/{$name}";
 481
 482                 if ( ! is_file( $curfile ) ) {
 483                         $wgOut->fileNotFoundError( htmlspecialchars( $curfile ) );
 484                         return;
 485                 }
 486                 $oldver = wfTimestampNow() . "!{$name}";
 487
 488                 $dbr =& wfGetDB( DB_SLAVE );
 489                 $size = $dbr->selectField( 'oldimage', 'oi_size', array( 'oi_archive_name' => $oldimage )  );
 490
 491                 if ( ! rename( $curfile, "${archive}/{$oldver}" ) ) {
 492                         $wgOut->fileRenameError( $curfile, "${archive}/{$oldver}" );
 493                         return;
 494                 }
 495                 if ( ! copy( "{$archive}/{$oldimage}", $curfile ) ) {
 496                         $wgOut->fileCopyError( "${archive}/{$oldimage}", $curfile );
 497                 }
 498
 499                 # Record upload and update metadata cache
 500                 $img = Image::newFromName( $name );
 501                 $img->recordUpload( $oldver, wfMsg( "reverted" ) );
 502
 503                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 504                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 505                 $wgOut->addHTML( wfMsg( 'imagereverted' ) );
 506
 507                 $descTitle = $img->getTitle();
 508                 $wgOut->returnToMain( false, $descTitle->getPrefixedText() );
 509         }
 510 }
 511
 512 /**
 513  * @todo document
 514  * @package MediaWiki
 515  */
 516 class ImageHistoryList {
 517         function ImageHistoryList( &$skin ) {
 518                 $this->skin =& $skin;
 519         }
 520
 521         function beginImageHistoryList() {
 522                 $s = "\n<h2 id=\"imghistory\">" . wfMsg( 'imghistory' ) . "</h2>\n" .
 523                   "<p>" . wfMsg( 'imghistlegend' ) . "</p>\n".'<ul class="special">';
 524                 return $s;
 525         }
 526
 527         function endImageHistoryList() {
 528                 $s = "</ul>\n";
 529                 return $s;
 530         }
 531
 532         function imageHistoryLine( $iscur, $timestamp, $img, $user, $usertext, $size, $description ) {
 533                 global $wgUser, $wgLang, $wgContLang, $wgTitle;
 534
 535                 $datetime = $wgLang->timeanddate( $timestamp, true );
 536                 $del = wfMsg( 'deleteimg' );
 537                 $delall = wfMsg( 'deleteimgcompletely' );
 538                 $cur = wfMsg( 'cur' );
 539
 540                 if ( $iscur ) {
 541                         $url = Image::imageUrl( $img );
 542                         $rlink = $cur;
 543                         if ( $wgUser->isAllowed('delete') ) {
 544                                 $link = $wgTitle->escapeLocalURL( 'image=' . $wgTitle->getPartialURL() .
 545                                   '&action=delete' );
 546                                 $style = $this->skin->getInternalLinkAttributes( $link, $delall );
 547
 548                                 $dlink = '<a href="'.$link.'"'.$style.'>'.$delall.'</a>';
 549                         } else {
 550                                 $dlink = $del;
 551                         }
 552                 } else {
 553                         $url = htmlspecialchars( wfImageArchiveUrl( $img ) );
 554                         if( $wgUser->getID() != 0 && $wgTitle->userCanEdit() ) {
 555                                 $token = urlencode( $wgUser->editToken( $img ) );
 556                                 $rlink = $this->skin->makeKnownLinkObj( $wgTitle,
 557                                            wfMsg( 'revertimg' ), 'action=revert&oldimage=' .
 558                                            urlencode( $img ) . "&wpEditToken=$token" );
 559                                 $dlink = $this->skin->makeKnownLinkObj( $wgTitle,
 560                                            $del, 'action=delete&oldimage=' . urlencode( $img ) .
 561                                            "&wpEditToken=$token" );
 562                         } else {
 563                                 # Having live active links for non-logged in users
 564                                 # means that bots and spiders crawling our site can
 565                                 # inadvertently change content. Baaaad idea.
 566                                 $rlink = wfMsg( 'revertimg' );
 567                                 $dlink = $del;
 568                         }
 569                 }
 570                 if ( 0 == $user ) {
 571                         $userlink = $usertext;
 572                 } else {
 573                         $userlink = $this->skin->makeLinkObj(
 574                                 Title::makeTitle( NS_USER, $usertext ),
 575                                 $usertext );
 576                 }
 577                 $nbytes = wfMsg( 'nbytes', $size );
 578                 $style = $this->skin->getInternalLinkAttributes( $url, $datetime );
 579
 580                 $s = "<li> ({$dlink}) ({$rlink}) <a href=\"{$url}\"{$style}>{$datetime}</a>"
 581                   . " . . {$userlink} ({$nbytes})";
 582
 583                 $s .= $this->skin->commentBlock( $description, $wgTitle );
 584                 $s .= "</li>\n";
 585                 return $s;
 586         }
 587
 588 }
 589
 590
 591 ?>