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, $wgShowEXIF;
  24
  25                 $this->img  = new Image( $this->mTitle );
  26
  27                 if( $this->mTitle->getNamespace() == NS_IMAGE  ) {
  28                         if ($wgShowEXIF && $this->img->exists()) {
  29                                 $exif = $this->img->getExifData();
  30                                 $showmeta = count($exif) ? true : false;
  31                         } else {
  32                                 $exif = false;
  33                                 $showmeta = false;
  34                         }
  35
  36                         if ($this->img->exists())
  37                                 $wgOut->addHTML($this->showTOC($showmeta));
  38
  39                         $this->openShowImage();
  40
  41                         # No need to display noarticletext, we use our own message, output in openShowImage()
  42                         if( $this->getID() ) {
  43                                 Article::view();
  44                         } else {
  45                                 # Just need to set the right headers
  46                                 $wgOut->setArticleFlag( true );
  47                                 $wgOut->setRobotpolicy( 'index,follow' );
  48                                 $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
  49                                 $wgOut->addMetaTags();
  50                                 $this->viewUpdates();
  51                         }
  52
  53                         $this->closeShowImage();
  54                         $this->imageHistory();
  55                         if ($exif)
  56                                 $wgOut->addHTML($this->makeMetadataTable($exif));
  57                         $this->imageLinks();
  58                 } else {
  59                         Article::view();
  60                 }
  61         }
  62
  63         /**
  64          * Create the TOC
  65          *
  66          * @access private
  67          *
  68          * @param bool $metadata Whether or not to show the metadata link
  69          * @return string
  70          */
  71         function showTOC( $metadata ) {
  72                 global $wgLang;
  73                 $r = '<ul id="filetoc">
  74                         <li><a href="#file">' . $wgLang->getNsText( NS_IMAGE ) . '</a></li>
  75                         <li><a href="#filehistory">' . wfMsg( 'imghistory' ) . '</a></li>
  76                         <li><a href="#filelinks">' . wfMsg( 'imagelinks' ) . '</a></li>' .
  77                         ($metadata ? '<li><a href="#metadata">' . wfMsg( 'metadata' ) . '</a></li>' : '') .
  78                 '</ul>';
  79                 return $r;
  80         }
  81
  82         /**
  83          * Make a table with metadata to be shown in the output page.
  84          *
  85          * @access private
  86          *
  87          * @param array $exif The array containing the EXIF data
  88          * @return string
  89          */
  90         function makeMetadataTable( $exif ) {
  91                 # Create the table
  92                 $r = '<h2 id="metadata">'. htmlspecialchars( wfMsg( 'metadata' ) ) . "</h2>\n";
  93                 $r .= "<table class='metadata'>\n" ;
  94                 $n = 0;
  95                 foreach( $exif as $k => $v ) {
  96                         if( $n % 2 == 0 ) {
  97                                 $r .= '<tr>';
  98                         }
  99                         $r .= '<th>' . wfMsg( 'exif-' . strtolower( $k ) ) . "</th>\n";
 100                         $r .= '<td>' . htmlspecialchars( $v ) . "</td>\n";
 101                         if ( $n % 2 == 1 ) {
 102                                 $r .= "</tr>\n";
 103                         } else {
 104                                 $r .= "<td class='spacer'>&nbsp;</td>\n";
 105                         }
 106                         $n++;
 107                 }
 108                 if ( $n % 2 == 1 ) {
 109                         $r .= "<th></th><td></td></tr>\n";
 110                 }
 111
 112                 return "$r</table>\n";
 113         }
 114
 115         function openShowImage()
 116         {
 117                 global $wgOut, $wgUser, $wgImageLimits, $wgRequest,
 118                        $wgUseImageResize, $wgRepositoryBaseUrl,
 119                        $wgUseExternalEditor, $wgServer;
 120                 $full_url  = $this->img->getViewURL();
 121                 $anchoropen = '';
 122                 $anchorclose = '';
 123
 124                 if( $wgUser->getOption( 'imagesize' ) == '' ) {
 125                         $sizeSel = User::getDefaultOption( 'imagesize' );
 126                 } else {
 127                         $sizeSel = IntVal( $wgUser->getOption( 'imagesize' ) );
 128                 }
 129                 if( !isset( $wgImageLimits[$sizeSel] ) ) {
 130                         $sizeSel = User::getDefaultOption( 'imagesize' );
 131                 }
 132                 $max = $wgImageLimits[$sizeSel];
 133                 $maxWidth = $max[0];
 134                 $maxHeight = $max[1];
 135                 $sk = $wgUser->getSkin();
 136
 137                 if ( $this->img->exists() ) {
 138                         if ( $this->img->getType() ) {
 139                                 # image
 140                                 $width = $this->img->getWidth();
 141                                 $height = $this->img->getHeight();
 142                                 # "Download high res version" link below the image
 143                                 $msg = wfMsg('showbigimage', $width, $height, intval( $this->img->getSize()/1024 ) );
 144                                 if ( $width > $maxWidth ) {
 145                                         $height = floor( $height * $maxWidth / $width );
 146                                         $width  = $maxWidth;
 147                                 }
 148                                 if ( $height > $maxHeight ) {
 149                                         $width = floor( $width * $maxHeight / $height );
 150                                         $height = $maxHeight;
 151                                 }
 152                                 if ( $width != $this->img->getWidth() || $height != $this->img->getHeight() ) {
 153                                         if( $wgUseImageResize ) {
 154                                                 $thumbnail = $this->img->getThumbnail( $width );
 155                                                 $url = $thumbnail->getUrl();
 156                                         } else {
 157                                                 # No resize ability? Show the full image, but scale
 158                                                 # it down in the browser so it fits on the page.
 159                                                 $url = $full_url;
 160                                         }
 161                                         $anchoropen  = "<a href=\"{$full_url}\">";
 162                                         $anchorclose = "</a><br />\n$anchoropen{$msg}</a>";
 163                                 } else {
 164                                         $url = $full_url;
 165                                 }
 166                                 $s = '<div class="fullImageLink" id="file">' . $anchoropen .
 167                                      "<img border=\"0\" src=\"{$url}\" width=\"{$width}\" height=\"{$height}\" alt=\"" .
 168                                      htmlspecialchars( $wgRequest->getVal( 'image' ) ).'" />' . $anchorclose . '</div>';
 169                         } else {
 170                                 $s = "<div class=\"fullMedia\">" . $sk->makeMediaLink( $this->img->getName(),'' ) . '</div>';
 171                         }
 172                         $wgOut->addHTML( $s );
 173                         if($this->img->fromSharedDirectory) {
 174                                 $sharedtext="<div class=\"sharedUploadNotice\">" . wfMsg("sharedupload");
 175                                 if($wgRepositoryBaseUrl) {
 176                                         $sharedtext .= " ". wfMsg("shareduploadwiki",$wgRepositoryBaseUrl . urlencode($this->mTitle->getDBkey()));
 177                                 }
 178                                 $sharedtext.="</div>";
 179                                 $wgOut->addWikiText($sharedtext);
 180                         }
 181
 182                 } else {
 183                         # Image does not exist
 184                         $wgOut->addWikiText( wfMsg( 'noimage', $this->getUploadUrl() ) );
 185                 }
 186         }
 187
 188         function getUploadUrl() {
 189                 global $wgServer;
 190                 $uploadTitle = Title::makeTitle( NS_SPECIAL, 'Upload' );
 191                 return $wgServer . $uploadTitle->getLocalUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) );
 192         }
 193
 194
 195         function uploadLinksBox()
 196         {
 197                 global $wgUser,$wgOut;
 198                 $sk = $wgUser->getSkin();
 199                 $wgOut->addHTML( '<br /><ul><li>' );
 200                 $wgOut->addWikiText( '<div>'. wfMsg( 'uploadnewversion', $this->getUploadUrl() ) .'</div>' );
 201                 $wgOut->addHTML( '</li><li>' );
 202                 $wgOut->addHTML( $sk->makeKnownLinkObj( $this->mTitle,
 203                         wfMsg( 'edit-externally' ), "action=edit&externaledit=true&mode=file" ) );
 204                 $wgOut->addWikiText( '<div>' .  wfMsg('edit-externally-help') . '</div>' );
 205                 $wgOut->addHTML( '</li></ul>' );
 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                 # Exist check because we don't want to show this on pages where an image
 243                 # doesn't exist along with the noimage message, that would suck. -ævar
 244                 if( $wgUseExternalEditor && $this->img->exists() ) {
 245                         $this->uploadLinksBox();
 246                 }
 247
 248         }
 249
 250         function imageLinks()
 251         {
 252                 global $wgUser, $wgOut;
 253
 254                 $wgOut->addHTML( '<h2 id="filelinks">' . wfMsg( 'imagelinks' ) . "</h2>\n" );
 255
 256                 $dbr =& wfGetDB( DB_SLAVE );
 257                 $page = $dbr->tableName( 'page' );
 258                 $imagelinks = $dbr->tableName( 'imagelinks' );
 259
 260                 $sql = "SELECT page_namespace,page_title FROM $imagelinks,$page WHERE il_to=" .
 261                   $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=page_id"
 262                   . " LIMIT 500"; # quickie emergency brake
 263                 $res = $dbr->query( $sql, "ImagePage::imageLinks" );
 264
 265                 if ( 0 == $dbr->numRows( $res ) ) {
 266                         $wgOut->addHtml( '<p>' . wfMsg( "nolinkstoimage" ) . "</p>\n" );
 267                         return;
 268                 }
 269                 $wgOut->addHTML( '<p>' . wfMsg( 'linkstoimage' ) .  "</p>\n<ul>" );
 270
 271                 $sk = $wgUser->getSkin();
 272                 while ( $s = $dbr->fetchObject( $res ) ) {
 273                         $name = Title::MakeTitle( $s->page_namespace, $s->page_title );
 274                         $link = $sk->makeKnownLinkObj( $name, "" );
 275                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 276                 }
 277                 $wgOut->addHTML( "</ul>\n" );
 278         }
 279
 280         function delete()
 281         {
 282                 global $wgUser, $wgOut, $wgRequest;
 283
 284                 $confirm = $wgRequest->getBool( 'wpConfirmB' );
 285                 $image = $wgRequest->getVal( 'image' );
 286                 $oldimage = $wgRequest->getVal( 'oldimage' );
 287
 288                 # Only sysops can delete images. Previously ordinary users could delete
 289                 # old revisions, but this is no longer the case.
 290                 if ( !$wgUser->isAllowed('delete') ) {
 291                         $wgOut->sysopRequired();
 292                         return;
 293                 }
 294                 if ( wfReadOnly() ) {
 295                         $wgOut->readOnlyPage();
 296                         return;
 297                 }
 298
 299                 # Better double-check that it hasn't been deleted yet!
 300                 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
 301                 if ( ( !is_null( $image ) )
 302                   && ( '' == trim( $image ) ) ) {
 303                         $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
 304                         return;
 305                 }
 306
 307                 $this->img  = new Image( $this->mTitle );
 308
 309                 # Deleting old images doesn't require confirmation
 310                 if ( !is_null( $oldimage ) || $confirm ) {
 311                         if( $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 312                                 $this->doDelete();
 313                         } else {
 314                                 $wgOut->fatalError( wfMsg( 'sessionfailure' ) );
 315                         }
 316                         return;
 317                 }
 318
 319                 if ( !is_null( $image ) ) {
 320                         $q = '&image=' . urlencode( $image );
 321                 } else if ( !is_null( $oldimage ) ) {
 322                         $q = '&oldimage=' . urlencode( $oldimage );
 323                 } else {
 324                         $q = '';
 325                 }
 326                 return $this->confirmDelete( $q, $wgRequest->getText( 'wpReason' ) );
 327         }
 328
 329         function doDelete()
 330         {
 331                 global $wgOut, $wgUser, $wgContLang, $wgRequest;
 332                 global $wgUseSquid, $wgInternalServer, $wgPostCommitUpdateList;
 333                 $fname = 'ImagePage::doDelete';
 334
 335                 $reason = $wgRequest->getVal( 'wpReason' );
 336                 $oldimage = $wgRequest->getVal( 'oldimage' );
 337
 338                 $dbw =& wfGetDB( DB_MASTER );
 339
 340                 if ( !is_null( $oldimage ) ) {
 341                         if ( strlen( $oldimage ) < 16 ) {
 342                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 343                                 return;
 344                         }
 345                         if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 346                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 347                                 return;
 348                         }
 349
 350                         # Invalidate description page cache
 351                         $this->mTitle->invalidateCache();
 352
 353                         # Squid purging
 354                         if ( $wgUseSquid ) {
 355                                 $urlArr = Array(
 356                                         $wgInternalServer.wfImageArchiveUrl( $oldimage ),
 357                                         $wgInternalServer.$this->mTitle->getFullURL()
 358                                 );
 359                                 wfPurgeSquidServers($urlArr);
 360                         }
 361                         $this->doDeleteOldImage( $oldimage );
 362                         $dbw->delete( 'oldimage', array( 'oi_archive_name' => $oldimage ) );
 363                         $deleted = $oldimage;
 364                 } else {
 365                         $image = $this->mTitle->getDBkey();
 366                         $dest = wfImageDir( $image );
 367                         $archive = wfImageDir( $image );
 368
 369                         # Delete the image file if it exists; due to sync problems
 370                         # or manual trimming sometimes the file will be missing.
 371                         $targetFile = "{$dest}/{$image}";
 372                         if( file_exists( $targetFile ) && ! @unlink( $targetFile ) ) {
 373                                 # If the deletion operation actually failed, bug out:
 374                                 $wgOut->fileDeleteError( $targetFile );
 375                                 return;
 376                         }
 377                         $dbw->delete( 'image', array( 'img_name' => $image ) );
 378                         $res = $dbw->select( 'oldimage', array( 'oi_archive_name' ), array( 'oi_name' => $image ) );
 379
 380                         # Purge archive URLs from the squid
 381                         $urlArr = Array();
 382                         while ( $s = $dbw->fetchObject( $res ) ) {
 383                                 $this->doDeleteOldImage( $s->oi_archive_name );
 384                                 $urlArr[] = $wgInternalServer.wfImageArchiveUrl( $s->oi_archive_name );
 385                         }
 386
 387                         # And also the HTML of all pages using this image
 388                         $linksTo = $this->img->getLinksTo();
 389                         if ( $wgUseSquid ) {
 390                                 $u = SquidUpdate::newFromTitles( $linksTo, $urlArr );
 391                                 array_push( $wgPostCommitUpdateList, $u );
 392                         }
 393
 394                         $dbw->delete( 'oldimage', array( 'oi_name' => $image ) );
 395
 396                         # Image itself is now gone, and database is cleaned.
 397                         # Now we remove the image description page.
 398
 399                         $article = new Article( $this->mTitle );
 400                         $article->doDeleteArticle( $reason ); # ignore errors
 401
 402                         # Invalidate parser cache and client cache for pages using this image
 403                         # This is left until relatively late to reduce lock time
 404                         Title::touchArray( $linksTo );
 405
 406                         /* Delete thumbnails and refresh image metadata cache */
 407                         $this->img->purgeCache();
 408
 409
 410                         $deleted = $image;
 411                 }
 412
 413                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 414                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 415
 416                 $sk = $wgUser->getSkin();
 417                 $loglink = $sk->makeKnownLinkObj(
 418                         Title::makeTitle( NS_SPECIAL, 'Log/delete' ),
 419                         wfMsg( 'deletionlog' ) );
 420
 421                 $text = wfMsg( 'deletedtext', $deleted, $loglink );
 422
 423                 $wgOut->addHTML( '<p>' . $text . "</p>\n" );
 424                 $wgOut->returnToMain( false, $this->mTitle->getPrefixedText() );
 425         }
 426
 427         function doDeleteOldImage( $oldimage )
 428         {
 429                 global $wgOut;
 430
 431                 $name = substr( $oldimage, 15 );
 432                 $archive = wfImageArchiveDir( $name );
 433
 434                 # Delete the image if it exists. Sometimes the file will be missing
 435                 # due to manual intervention or weird sync problems; treat that
 436                 # condition gracefully and continue to delete the database entry.
 437                 # Also some records may end up with an empty oi_archive_name field
 438                 # if the original file was missing when a new upload was made;
 439                 # don't try to delete the directory then!
 440                 #
 441                 $targetFile = "{$archive}/{$oldimage}";
 442                 if( $oldimage != '' && file_exists( $targetFile ) && !@unlink( $targetFile ) ) {
 443                         # If we actually have a file and can't delete it, throw an error.
 444                         $wgOut->fileDeleteError( "{$archive}/{$oldimage}" );
 445                 } else {
 446                         # Log the deletion
 447                         $log = new LogPage( 'delete' );
 448                         $log->addEntry( 'delete', $this->mTitle, wfMsg('deletedrevision',$oldimage) );
 449                 }
 450         }
 451
 452         function revert()
 453         {
 454                 global $wgOut, $wgRequest, $wgUser;
 455                 global $wgUseSquid, $wgInternalServer, $wgDeferredUpdateList;
 456
 457                 $oldimage = $wgRequest->getText( 'oldimage' );
 458                 if ( strlen( $oldimage ) < 16 ) {
 459                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 460                         return;
 461                 }
 462                 if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 463                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 464                         return;
 465                 }
 466
 467                 if ( wfReadOnly() ) {
 468                         $wgOut->readOnlyPage();
 469                         return;
 470                 }
 471                 if( $wgUser->isAnon() ) {
 472                         $wgOut->errorpage( 'uploadnologin', 'uploadnologintext' );
 473                         return;
 474                 }
 475                 if ( ! $this->mTitle->userCanEdit() ) {
 476                         $wgOut->sysopRequired();
 477                         return;
 478                 }
 479                 if( !$wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 480                         $wgOut->errorpage( 'internalerror', 'sessionfailure' );
 481                         return;
 482                 }
 483                 $name = substr( $oldimage, 15 );
 484
 485                 $dest = wfImageDir( $name );
 486                 $archive = wfImageArchiveDir( $name );
 487                 $curfile = "{$dest}/{$name}";
 488
 489                 if ( ! is_file( $curfile ) ) {
 490                         $wgOut->fileNotFoundError( htmlspecialchars( $curfile ) );
 491                         return;
 492                 }
 493                 $oldver = wfTimestampNow() . "!{$name}";
 494
 495                 $dbr =& wfGetDB( DB_SLAVE );
 496                 $size = $dbr->selectField( 'oldimage', 'oi_size', array( 'oi_archive_name' => $oldimage )  );
 497
 498                 if ( ! rename( $curfile, "${archive}/{$oldver}" ) ) {
 499                         $wgOut->fileRenameError( $curfile, "${archive}/{$oldver}" );
 500                         return;
 501                 }
 502                 if ( ! copy( "{$archive}/{$oldimage}", $curfile ) ) {
 503                         $wgOut->fileCopyError( "${archive}/{$oldimage}", $curfile );
 504                 }
 505
 506                 # Record upload and update metadata cache
 507                 $img = Image::newFromName( $name );
 508                 $img->recordUpload( $oldver, wfMsg( "reverted" ) );
 509
 510                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 511                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 512                 $wgOut->addHTML( wfMsg( 'imagereverted' ) );
 513
 514                 $descTitle = $img->getTitle();
 515                 $wgOut->returnToMain( false, $descTitle->getPrefixedText() );
 516         }
 517 }
 518
 519 /**
 520  * @todo document
 521  * @package MediaWiki
 522  */
 523 class ImageHistoryList {
 524         function ImageHistoryList( &$skin ) {
 525                 $this->skin =& $skin;
 526         }
 527
 528         function beginImageHistoryList() {
 529                 $s = "\n<h2 id=\"filehistory\">" . wfMsg( 'imghistory' ) . "</h2>\n" .
 530                   "<p>" . wfMsg( 'imghistlegend' ) . "</p>\n".'<ul class="special">';
 531                 return $s;
 532         }
 533
 534         function endImageHistoryList() {
 535                 $s = "</ul>\n";
 536                 return $s;
 537         }
 538
 539         function imageHistoryLine( $iscur, $timestamp, $img, $user, $usertext, $size, $description ) {
 540                 global $wgUser, $wgLang, $wgContLang, $wgTitle;
 541
 542                 $datetime = $wgLang->timeanddate( $timestamp, true );
 543                 $del = wfMsg( 'deleteimg' );
 544                 $delall = wfMsg( 'deleteimgcompletely' );
 545                 $cur = wfMsg( 'cur' );
 546
 547                 if ( $iscur ) {
 548                         $url = Image::imageUrl( $img );
 549                         $rlink = $cur;
 550                         if ( $wgUser->isAllowed('delete') ) {
 551                                 $link = $wgTitle->escapeLocalURL( 'image=' . $wgTitle->getPartialURL() .
 552                                   '&action=delete' );
 553                                 $style = $this->skin->getInternalLinkAttributes( $link, $delall );
 554
 555                                 $dlink = '<a href="'.$link.'"'.$style.'>'.$delall.'</a>';
 556                         } else {
 557                                 $dlink = $del;
 558                         }
 559                 } else {
 560                         $url = htmlspecialchars( wfImageArchiveUrl( $img ) );
 561                         if( $wgUser->getID() != 0 && $wgTitle->userCanEdit() ) {
 562                                 $token = urlencode( $wgUser->editToken( $img ) );
 563                                 $rlink = $this->skin->makeKnownLinkObj( $wgTitle,
 564                                            wfMsg( 'revertimg' ), 'action=revert&oldimage=' .
 565                                            urlencode( $img ) . "&wpEditToken=$token" );
 566                                 $dlink = $this->skin->makeKnownLinkObj( $wgTitle,
 567                                            $del, 'action=delete&oldimage=' . urlencode( $img ) .
 568                                            "&wpEditToken=$token" );
 569                         } else {
 570                                 # Having live active links for non-logged in users
 571                                 # means that bots and spiders crawling our site can
 572                                 # inadvertently change content. Baaaad idea.
 573                                 $rlink = wfMsg( 'revertimg' );
 574                                 $dlink = $del;
 575                         }
 576                 }
 577                 if ( 0 == $user ) {
 578                         $userlink = $usertext;
 579                 } else {
 580                         $userlink = $this->skin->makeLinkObj(
 581                                 Title::makeTitle( NS_USER, $usertext ),
 582                                 $usertext );
 583                 }
 584                 $nbytes = wfMsg( 'nbytes', $size );
 585                 $style = $this->skin->getInternalLinkAttributes( $url, $datetime );
 586
 587                 $s = "<li> ({$dlink}) ({$rlink}) <a href=\"{$url}\"{$style}>{$datetime}</a>"
 588                   . " . . {$userlink} ({$nbytes})";
 589
 590                 $s .= $this->skin->commentBlock( $description, $wgTitle );
 591                 $s .= "</li>\n";
 592                 return $s;
 593         }
 594
 595 }
 596
 597
 598 ?>