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