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() ) $this->showEXIFdata();
  49                 } else {
  50                         Article::view();
  51                 }
  52         }
  53
  54         function showTOC() {
  55                 global $wgOut, $wgShowEXIF, $wgLang;
  56
  57                 $r= '<div class="imagepagetoc" style="float:right; margin-top:-4em;"><table id="toc" border="0"><tr><td valign="top"><b>'.wfMsg( 'toc' ).'</b><br />';
  58                 $r .= '<a href="#toc">'        . $wgLang->getNStext( NS_IMAGE ) . '</a href> - ';
  59                 $r .= '<a href="#imghistory">' . wfMsg( 'imghistory' ) . '</a href> - ';
  60                 $r .= '<a href="#imagelinks">' . wfMsg( 'imagelinks' ) . '</a href>';
  61                 if ( $wgShowEXIF ) {
  62                         $r .= ' - <a href="#showexif">' . wfMsg( 'exifdata' ) . '</a>';
  63                 }
  64
  65
  66                 $wgOut->addHTML( $r . '</td></tr></table></div>' );
  67
  68         }
  69
  70         function showEXIFdata() {
  71                 global $wgOut, $wgShowEXIF;
  72                 if ( ! $wgShowEXIF ) return;
  73
  74                 # Get the EXIF data
  75                 $exif = $this->img->getExifData();
  76                 if ( count ( $exif ) == 0 ) return; # No EXIF data available
  77
  78                 # Create the table
  79                 $r = '<h2 id="exifdata">'. wfMsg( 'exifdata' ) . "</h2>\n";
  80                 $r .= "<table class=\"exif\">\n" ;
  81                 $n = 0;
  82                 foreach ( $exif as $k => $v ) {
  83                         if ( $n % 2 == 0 ) {
  84                                 $r .= '<tr>';
  85                         }
  86                         $r .= "<th>$k</th>\n";
  87                         $r .= '<td>' . htmlspecialchars($v) . "</td>\n";
  88                         if ( $n % 2 == 1 ) {
  89                                 $r .= "</tr>\n";
  90                         } else {
  91                                 $r .= "<td style=\"background: white;\">&nbsp;&nbsp;</td>\n";
  92                         }
  93                         $n++;
  94                 }
  95                 if ( $n % 2 == 1 ) {
  96                         $r .= "<td></td><td></td></tr>\n";
  97                 }
  98
  99                 $wgOut->addHTML( $r . "</table>\n" );
 100         }
 101
 102         function openShowImage()
 103         {
 104                 global $wgOut, $wgUser, $wgImageLimits, $wgRequest,
 105                        $wgUseImageResize, $wgRepositoryBaseUrl,
 106                        $wgUseExternalEditor, $wgServer;
 107                 $full_url  = $this->img->getViewURL();
 108                 $anchoropen = '';
 109                 $anchorclose = '';
 110
 111                 if( $wgUser->getOption( 'imagesize' ) == '' ) {
 112                         $sizeSel = User::getDefaultOption( 'imagesize' );
 113                 } else {
 114                         $sizeSel = IntVal( $wgUser->getOption( 'imagesize' ) );
 115                 }
 116                 if( !isset( $wgImageLimits[$sizeSel] ) ) {
 117                         $sizeSel = User::getDefaultOption( 'imagesize' );
 118                 }
 119                 $max = $wgImageLimits[$sizeSel];
 120                 $maxWidth = $max[0];
 121                 $maxHeight = $max[1];
 122                 $sk = $wgUser->getSkin();
 123
 124                 if ( $this->img->exists() ) {
 125                         if ( $this->img->getType() != '' ) {
 126                                 # image
 127                                 $width = $this->img->getWidth();
 128                                 $height = $this->img->getHeight();
 129                                 # "Download high res version" link below the image
 130                                 $msg = wfMsg('showbigimage', $width, $height, intval( $this->img->getSize()/1024 ) );
 131                                 if ( $width > $maxWidth ) {
 132                                         $height = floor( $height * $maxWidth / $width );
 133                                         $width  = $maxWidth;
 134                                 }
 135                                 if ( $height > $maxHeight ) {
 136                                         $width = floor( $width * $maxHeight / $height );
 137                                         $height = $maxHeight;
 138                                 }
 139                                 if ( $width != $this->img->getWidth() || $height != $this->img->getHeight() ) {
 140                                         if( $wgUseImageResize ) {
 141                                                 $thumbnail = $this->img->getThumbnail( $width );
 142                                                 $url = $thumbnail->getUrl();
 143                                         } else {
 144                                                 # No resize ability? Show the full image, but scale
 145                                                 # it down in the browser so it fits on the page.
 146                                                 $url = $full_url;
 147                                         }
 148                                         $anchoropen  = "<a href=\"{$full_url}\">";
 149                                         $anchorclose = "</a><br />\n$anchoropen{$msg}</a>";
 150                                 } else {
 151                                         $url = $full_url;
 152                                 }
 153                                 $s = '<div class="fullImageLink">' . $anchoropen .
 154                                      "<img border=\"0\" src=\"{$url}\" width=\"{$width}\" height=\"{$height}\" alt=\"" .
 155                                      htmlspecialchars( $wgRequest->getVal( 'image' ) ).'" />' . $anchorclose . '</div>';
 156                         } else {
 157                                 $s = "<div class=\"fullMedia\">" . $sk->makeMediaLink( $this->img->getName(),'' ) . '</div>';
 158                         }
 159                         $wgOut->addHTML( $s );
 160                         if($this->img->fromSharedDirectory) {
 161                                 $sharedtext="<div class=\"sharedUploadNotice\">" . wfMsg("sharedupload");
 162                                 if($wgRepositoryBaseUrl) {
 163                                         $sharedtext .= " ". wfMsg("shareduploadwiki",$wgRepositoryBaseUrl . urlencode($this->mTitle->getDBkey()));
 164                                 }
 165                                 $sharedtext.="</div>";
 166                                 $wgOut->addWikiText($sharedtext);
 167                         }
 168
 169                 } else {
 170                         # Image does not exist
 171                         $wgOut->addWikiText( wfMsg( 'noimage', $this->getUploadUrl() ) );
 172                 }
 173         }
 174
 175         function getUploadUrl() {
 176                 global $wgServer;
 177                 $uploadTitle = Title::makeTitle( NS_SPECIAL, 'Upload' );
 178                 return $wgServer . $uploadTitle->getLocalUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) );
 179         }
 180
 181
 182         function uploadLinksBox()
 183         {
 184                 global $wgUser,$wgOut;
 185                 $sk = $wgUser->getSkin();
 186                 if (0) {
 187                         $wgOut->addHTML( '<table id="toc" border="0"><tr><td valign="top">' );
 188                         $wgOut->addWikiText( '<div class="editExternally">'. wfMsg( 'uploadnewversion', $this->getUploadUrl() ) .'</div>' );
 189                         $wgOut->addHTML( '</td><td><div class="editExternally">' );
 190                         $wgOut->addHTML( $sk->makeKnownLinkObj( $this->mTitle,
 191                                 wfMsg( 'edit-externally' ),
 192                                 "action=edit&externaledit=true&mode=file" ) );
 193                         $wgOut->addWikiText( '<div class="editExternallyHelp">' .
 194                                 wfMsg('edit-externally-help') . '</div>' );
 195                         $wgOut->addHTML( '</div></td></tr></table><br clear="both">' );
 196                 } else if (0) {
 197                         $wgOut->addHTML( '<br /><ul><li>' );
 198                         $wgOut->addWikiText( '<div>'. wfMsg( 'uploadnewversion', $this->getUploadUrl() ) .'</div>' );
 199                         $wgOut->addHTML( '</li><li>' );
 200                         $wgOut->addHTML( $sk->makeKnownLinkObj( $this->mTitle,
 201                                 wfMsg( 'edit-externally' ), "action=edit&externaledit=true&mode=file" ) );
 202                         $wgOut->addWikiText( '<div>' .  wfMsg('edit-externally-help') . '</div>' );
 203                         $wgOut->addHTML( '</li></ul>' );
 204                 } else {
 205                 }
 206         }
 207
 208         function closeShowImage()
 209         {
 210                 # For overloading
 211
 212         }
 213
 214         /**
 215          * If the page we've just displayed is in the "Image" namespace,
 216          * we follow it with an upload history of the image and its usage.
 217          */
 218         function imageHistory()
 219         {
 220                 global $wgUser, $wgOut, $wgUseExternalEditor;
 221
 222                 $sk = $wgUser->getSkin();
 223
 224                 $line = $this->img->nextHistoryLine();
 225
 226                 if ( $line ) {
 227                         $list =& new ImageHistoryList( $sk );
 228                         $s = $list->beginImageHistoryList() .
 229                                 $list->imageHistoryLine( true, $line->img_timestamp,
 230                                         $this->mTitle->getDBkey(),  $line->img_user,
 231                                         $line->img_user_text, $line->img_size, $line->img_description );
 232
 233                         while ( $line = $this->img->nextHistoryLine() ) {
 234                                 $s .= $list->imageHistoryLine( false, $line->img_timestamp,
 235                                 $line->oi_archive_name, $line->img_user,
 236                                 $line->img_user_text, $line->img_size, $line->img_description );
 237                         }
 238                         $s .= $list->endImageHistoryList();
 239                 } else { $s=''; }
 240                 $wgOut->addHTML( $s );
 241
 242                 if ( $wgUseExternalEditor ) {
 243                         $this->uploadLinksBox();
 244                 }
 245
 246         }
 247
 248         function imageLinks()
 249         {
 250                 global $wgUser, $wgOut;
 251
 252                 $wgOut->addHTML( '<h2 id="imagelinks">' . wfMsg( 'imagelinks' ) . "</h2>\n" );
 253
 254                 $dbr =& wfGetDB( DB_SLAVE );
 255                 $page = $dbr->tableName( 'page' );
 256                 $imagelinks = $dbr->tableName( 'imagelinks' );
 257
 258                 $sql = "SELECT page_namespace,page_title FROM $imagelinks,$page WHERE il_to=" .
 259                   $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=page_id"
 260                   . " LIMIT 500"; # quickie emergency brake
 261                 $res = $dbr->query( $sql, "ImagePage::imageLinks" );
 262
 263                 if ( 0 == $dbr->numRows( $res ) ) {
 264                         $wgOut->addHtml( '<p>' . wfMsg( "nolinkstoimage" ) . "</p>\n" );
 265                         return;
 266                 }
 267                 $wgOut->addHTML( '<p>' . wfMsg( 'linkstoimage' ) .  "</p>\n<ul>" );
 268
 269                 $sk = $wgUser->getSkin();
 270                 while ( $s = $dbr->fetchObject( $res ) ) {
 271                         $name = Title::MakeTitle( $s->page_namespace, $s->page_title );
 272                         $link = $sk->makeKnownLinkObj( $name, "" );
 273                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 274                 }
 275                 $wgOut->addHTML( "</ul>\n" );
 276         }
 277
 278         function delete()
 279         {
 280                 global $wgUser, $wgOut, $wgRequest;
 281
 282                 $confirm = $wgRequest->getBool( 'wpConfirmB' );
 283                 $image = $wgRequest->getVal( 'image' );
 284                 $oldimage = $wgRequest->getVal( 'oldimage' );
 285
 286                 # Only sysops can delete images. Previously ordinary users could delete
 287                 # old revisions, but this is no longer the case.
 288                 if ( !$wgUser->isAllowed('delete') ) {
 289                         $wgOut->sysopRequired();
 290                         return;
 291                 }
 292                 if ( wfReadOnly() ) {
 293                         $wgOut->readOnlyPage();
 294                         return;
 295                 }
 296
 297                 # Better double-check that it hasn't been deleted yet!
 298                 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
 299                 if ( ( !is_null( $image ) )
 300                   && ( '' == trim( $image ) ) ) {
 301                         $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
 302                         return;
 303                 }
 304
 305                 $this->img  = new Image( $this->mTitle );
 306
 307                 # Deleting old images doesn't require confirmation
 308                 if ( !is_null( $oldimage ) || $confirm ) {
 309                         if( $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 310                                 $this->doDelete();
 311                         } else {
 312                                 $wgOut->fatalError( wfMsg( 'sessionfailure' ) );
 313                         }
 314                         return;
 315                 }
 316
 317                 if ( !is_null( $image ) ) {
 318                         $q = '&image=' . urlencode( $image );
 319                 } else if ( !is_null( $oldimage ) ) {
 320                         $q = '&oldimage=' . urlencode( $oldimage );
 321                 } else {
 322                         $q = '';
 323                 }
 324                 return $this->confirmDelete( $q, $wgRequest->getText( 'wpReason' ) );
 325         }
 326
 327         function doDelete()
 328         {
 329                 global $wgOut, $wgUser, $wgContLang, $wgRequest;
 330                 global $wgUseSquid, $wgInternalServer, $wgPostCommitUpdateList;
 331                 $fname = 'ImagePage::doDelete';
 332
 333                 $reason = $wgRequest->getVal( 'wpReason' );
 334                 $oldimage = $wgRequest->getVal( 'oldimage' );
 335
 336                 $dbw =& wfGetDB( DB_MASTER );
 337
 338                 if ( !is_null( $oldimage ) ) {
 339                         if ( strlen( $oldimage ) < 16 ) {
 340                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 341                                 return;
 342                         }
 343                         if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 344                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 345                                 return;
 346                         }
 347
 348                         # Invalidate description page cache
 349                         $this->mTitle->invalidateCache();
 350
 351                         # Squid purging
 352                         if ( $wgUseSquid ) {
 353                                 $urlArr = Array(
 354                                         $wgInternalServer.wfImageArchiveUrl( $oldimage ),
 355                                         $wgInternalServer.$this->mTitle->getFullURL()
 356                                 );
 357                                 wfPurgeSquidServers($urlArr);
 358                         }
 359                         $this->doDeleteOldImage( $oldimage );
 360                         $dbw->delete( 'oldimage', array( 'oi_archive_name' => $oldimage ) );
 361                         $deleted = $oldimage;
 362                 } else {
 363                         $image = $this->mTitle->getDBkey();
 364                         $dest = wfImageDir( $image );
 365                         $archive = wfImageDir( $image );
 366
 367                         # Delete the image file if it exists; due to sync problems
 368                         # or manual trimming sometimes the file will be missing.
 369                         $targetFile = "{$dest}/{$image}";
 370                         if( file_exists( $targetFile ) && ! @unlink( $targetFile ) ) {
 371                                 # If the deletion operation actually failed, bug out:
 372                                 $wgOut->fileDeleteError( $targetFile );
 373                                 return;
 374                         }
 375                         $dbw->delete( 'image', array( 'img_name' => $image ) );
 376                         $res = $dbw->select( 'oldimage', array( 'oi_archive_name' ), array( 'oi_name' => $image ) );
 377
 378                         # Purge archive URLs from the squid
 379                         $urlArr = Array();
 380                         while ( $s = $dbw->fetchObject( $res ) ) {
 381                                 $this->doDeleteOldImage( $s->oi_archive_name );
 382                                 $urlArr[] = $wgInternalServer.wfImageArchiveUrl( $s->oi_archive_name );
 383                         }
 384
 385                         # And also the HTML of all pages using this image
 386                         $linksTo = $this->img->getLinksTo();
 387                         if ( $wgUseSquid ) {
 388                                 $u = SquidUpdate::newFromTitles( $linksTo, $urlArr );
 389                                 array_push( $wgPostCommitUpdateList, $u );
 390                         }
 391
 392                         $dbw->delete( 'oldimage', array( 'oi_name' => $image ) );
 393
 394                         # Image itself is now gone, and database is cleaned.
 395                         # Now we remove the image description page.
 396
 397                         $article = new Article( $this->mTitle );
 398                         $article->doDeleteArticle( $reason ); # ignore errors
 399
 400                         # Invalidate parser cache and client cache for pages using this image
 401                         # This is left until relatively late to reduce lock time
 402                         Title::touchArray( $linksTo );
 403
 404                         /* Delete thumbnails and refresh image metadata cache */
 405                         $this->img->purgeCache();
 406
 407
 408                         $deleted = $image;
 409                 }
 410
 411                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 412                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 413
 414                 $sk = $wgUser->getSkin();
 415                 $loglink = $sk->makeKnownLinkObj(
 416                         Title::makeTitle( NS_SPECIAL, 'Log/delete' ),
 417                         wfMsg( 'deletionlog' ) );
 418
 419                 $text = wfMsg( 'deletedtext', $deleted, $loglink );
 420
 421                 $wgOut->addHTML( '<p>' . $text . "</p>\n" );
 422                 $wgOut->returnToMain( false, $this->mTitle->getPrefixedText() );
 423         }
 424
 425         function doDeleteOldImage( $oldimage )
 426         {
 427                 global $wgOut;
 428
 429                 $name = substr( $oldimage, 15 );
 430                 $archive = wfImageArchiveDir( $name );
 431
 432                 # Delete the image if it exists. Sometimes the file will be missing
 433                 # due to manual intervention or weird sync problems; treat that
 434                 # condition gracefully and continue to delete the database entry.
 435                 # Also some records may end up with an empty oi_archive_name field
 436                 # if the original file was missing when a new upload was made;
 437                 # don't try to delete the directory then!
 438                 #
 439                 $targetFile = "{$archive}/{$oldimage}";
 440                 if( $oldimage != '' && file_exists( $targetFile ) && !@unlink( $targetFile ) ) {
 441                         # If we actually have a file and can't delete it, throw an error.
 442                         $wgOut->fileDeleteError( "{$archive}/{$oldimage}" );
 443                 } else {
 444                         # Log the deletion
 445                         $log = new LogPage( 'delete' );
 446                         $log->addEntry( 'delete', $this->mTitle, wfMsg('deletedrevision',$oldimage) );
 447                 }
 448         }
 449
 450         function revert()
 451         {
 452                 global $wgOut, $wgRequest, $wgUser;
 453                 global $wgUseSquid, $wgInternalServer, $wgDeferredUpdateList;
 454
 455                 $oldimage = $wgRequest->getText( 'oldimage' );
 456                 if ( strlen( $oldimage ) < 16 ) {
 457                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 458                         return;
 459                 }
 460                 if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 461                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 462                         return;
 463                 }
 464
 465                 if ( wfReadOnly() ) {
 466                         $wgOut->readOnlyPage();
 467                         return;
 468                 }
 469                 if( $wgUser->isAnon() ) {
 470                         $wgOut->errorpage( 'uploadnologin', 'uploadnologintext' );
 471                         return;
 472                 }
 473                 if ( ! $this->mTitle->userCanEdit() ) {
 474                         $wgOut->sysopRequired();
 475                         return;
 476                 }
 477                 if( !$wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 478                         $wgOut->errorpage( 'internalerror', 'sessionfailure' );
 479                         return;
 480                 }
 481                 $name = substr( $oldimage, 15 );
 482
 483                 $dest = wfImageDir( $name );
 484                 $archive = wfImageArchiveDir( $name );
 485                 $curfile = "{$dest}/{$name}";
 486
 487                 if ( ! is_file( $curfile ) ) {
 488                         $wgOut->fileNotFoundError( htmlspecialchars( $curfile ) );
 489                         return;
 490                 }
 491                 $oldver = wfTimestampNow() . "!{$name}";
 492
 493                 $dbr =& wfGetDB( DB_SLAVE );
 494                 $size = $dbr->selectField( 'oldimage', 'oi_size', array( 'oi_archive_name' => $oldimage )  );
 495
 496                 if ( ! rename( $curfile, "${archive}/{$oldver}" ) ) {
 497                         $wgOut->fileRenameError( $curfile, "${archive}/{$oldver}" );
 498                         return;
 499                 }
 500                 if ( ! copy( "{$archive}/{$oldimage}", $curfile ) ) {
 501                         $wgOut->fileCopyError( "${archive}/{$oldimage}", $curfile );
 502                 }
 503
 504                 # Record upload and update metadata cache
 505                 $img = Image::newFromName( $name );
 506                 $img->recordUpload( $oldver, wfMsg( "reverted" ) );
 507
 508                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 509                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 510                 $wgOut->addHTML( wfMsg( 'imagereverted' ) );
 511
 512                 $descTitle = $img->getTitle();
 513                 $wgOut->returnToMain( false, $descTitle->getPrefixedText() );
 514         }
 515 }
 516
 517 /**
 518  * @todo document
 519  * @package MediaWiki
 520  */
 521 class ImageHistoryList {
 522         function ImageHistoryList( &$skin ) {
 523                 $this->skin =& $skin;
 524         }
 525
 526         function beginImageHistoryList() {
 527                 $s = "\n<h2 id=\"imghistory\">" . wfMsg( 'imghistory' ) . "</h2>\n" .
 528                   "<p>" . wfMsg( 'imghistlegend' ) . "</p>\n".'<ul class="special">';
 529                 return $s;
 530         }
 531
 532         function endImageHistoryList() {
 533                 $s = "</ul>\n";
 534                 return $s;
 535         }
 536
 537         function imageHistoryLine( $iscur, $timestamp, $img, $user, $usertext, $size, $description ) {
 538                 global $wgUser, $wgLang, $wgContLang, $wgTitle;
 539
 540                 $datetime = $wgLang->timeanddate( $timestamp, true );
 541                 $del = wfMsg( 'deleteimg' );
 542                 $delall = wfMsg( 'deleteimgcompletely' );
 543                 $cur = wfMsg( 'cur' );
 544
 545                 if ( $iscur ) {
 546                         $url = Image::imageUrl( $img );
 547                         $rlink = $cur;
 548                         if ( $wgUser->isAllowed('delete') ) {
 549                                 $link = $wgTitle->escapeLocalURL( 'image=' . $wgTitle->getPartialURL() .
 550                                   '&action=delete' );
 551                                 $style = $this->skin->getInternalLinkAttributes( $link, $delall );
 552
 553                                 $dlink = '<a href="'.$link.'"'.$style.'>'.$delall.'</a>';
 554                         } else {
 555                                 $dlink = $del;
 556                         }
 557                 } else {
 558                         $url = htmlspecialchars( wfImageArchiveUrl( $img ) );
 559                         if( $wgUser->getID() != 0 && $wgTitle->userCanEdit() ) {
 560                                 $token = urlencode( $wgUser->editToken( $img ) );
 561                                 $rlink = $this->skin->makeKnownLinkObj( $wgTitle,
 562                                            wfMsg( 'revertimg' ), 'action=revert&oldimage=' .
 563                                            urlencode( $img ) . "&wpEditToken=$token" );
 564                                 $dlink = $this->skin->makeKnownLinkObj( $wgTitle,
 565                                            $del, 'action=delete&oldimage=' . urlencode( $img ) .
 566                                            "&wpEditToken=$token" );
 567                         } else {
 568                                 # Having live active links for non-logged in users
 569                                 # means that bots and spiders crawling our site can
 570                                 # inadvertently change content. Baaaad idea.
 571                                 $rlink = wfMsg( 'revertimg' );
 572                                 $dlink = $del;
 573                         }
 574                 }
 575                 if ( 0 == $user ) {
 576                         $userlink = $usertext;
 577                 } else {
 578                         $userlink = $this->skin->makeLinkObj(
 579                                 Title::makeTitle( NS_USER, $usertext ),
 580                                 $usertext );
 581                 }
 582                 $nbytes = wfMsg( 'nbytes', $size );
 583                 $style = $this->skin->getInternalLinkAttributes( $url, $datetime );
 584
 585                 $s = "<li> ({$dlink}) ({$rlink}) <a href=\"{$url}\"{$style}>{$datetime}</a>"
 586                   . " . . {$userlink} ({$nbytes})";
 587
 588                 $s .= $this->skin->commentBlock( $description, $wgTitle );
 589                 $s .= "</li>\n";
 590                 return $s;
 591         }
 592
 593 }
 594
 595
 596 ?>