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         var $mExtraDescription = false;
  22
  23         function render() {
  24                 global $wgOut;
  25                 $wgOut->setArticleBodyOnly(true);
  26                 $wgOut->addWikitext($this->getContent(true));
  27         }
  28
  29         function view() {
  30                 global $wgUseExternalEditor, $wgOut, $wgShowEXIF;
  31
  32                 $this->img = new Image( $this->mTitle );
  33
  34                 if( $this->mTitle->getNamespace() == NS_IMAGE  ) {
  35                         if ($wgShowEXIF && $this->img->exists()) {
  36                                 $exif = $this->img->getExifData();
  37                                 $showmeta = count($exif) ? true : false;
  38                         } else {
  39                                 $exif = false;
  40                                 $showmeta = false;
  41                         }
  42
  43                         if ($this->img->exists())
  44                                 $wgOut->addHTML($this->showTOC($showmeta));
  45
  46                         $this->openShowImage();
  47                         if ($exif)
  48                                 $wgOut->addWikiText($this->makeMetadataTable($exif));
  49
  50                         # No need to display noarticletext, we use our own message, output in openShowImage()
  51                         if( $this->getID() ) {
  52                                 Article::view();
  53                         } else {
  54                                 # Just need to set the right headers
  55                                 $wgOut->setArticleFlag( true );
  56                                 $wgOut->setRobotpolicy( 'index,follow' );
  57                                 $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
  58                                 $wgOut->addMetaTags();
  59                                 $this->viewUpdates();
  60                         }
  61
  62                         if ($this->mExtraDescription)
  63                                 $wgOut->addWikiText($this->mExtraDescription);
  64
  65                         $this->closeShowImage();
  66                         $this->imageHistory();
  67                         $this->imageLinks();
  68                 } else {
  69                         Article::view();
  70                 }
  71         }
  72
  73         /**
  74          * Create the TOC
  75          *
  76          * @access private
  77          *
  78          * @param bool $metadata Whether or not to show the metadata link
  79          * @return string
  80          */
  81         function showTOC( $metadata ) {
  82                 global $wgLang;
  83                 $r = '<ul id="filetoc">
  84                         <li><a href="#file">' . $wgLang->getNsText( NS_IMAGE ) . '</a></li>' .
  85                         ($metadata ? '<li><a href="#metadata">' . wfMsg( 'metadata' ) . '</a></li>' : '') . '
  86                         <li><a href="#filehistory">' . wfMsg( 'imghistory' ) . '</a></li>
  87                         <li><a href="#filelinks">' . wfMsg( 'imagelinks' ) . '</a></li>
  88                 </ul>';
  89                 return $r;
  90         }
  91
  92         /**
  93          * Make a table with metadata to be shown in the output page.
  94          *
  95          * @access private
  96          *
  97          * @param array $exif The array containing the EXIF data
  98          * @return string
  99          */
 100         function makeMetadataTable( $exif ) {
 101                 $r = "{| class=metadata align=right width=250px\n";
 102                 $r .= '|+ id=metadata | '. htmlspecialchars( wfMsg( 'metadata' ) ) . "\n";
 103                 foreach( $exif as $k => $v ) {
 104                         $tag = strtolower( $k );
 105                         $r .= "! class=$tag |" . wfMsg( "exif-$tag" ) . "\n";
 106                         $r .= "| class=$tag |" . htmlspecialchars( $v ) . "\n";
 107                         $r .= "|-\n";
 108                 }
 109                 return substr($r, 0, -3) . '|}';
 110         }
 111
 112         /**
 113          * Overloading Article's getContent method.
 114          * Omit noarticletext if sharedupload
 115          *
 116          * @param $noredir If true, do not follow redirects
 117          */
 118         function getContent( $noredir )
 119         {
 120                 if ( $this->img && $this->img->fromSharedDirectory && 0 == $this->getID() ) {
 121                         return '';
 122                 }
 123                 return Article::getContent( $noredir );
 124         }
 125
 126         function openShowImage()
 127         {
 128                 global $wgOut, $wgUser, $wgImageLimits, $wgRequest,
 129                        $wgUseImageResize, $wgRepositoryBaseUrl,
 130                        $wgUseExternalEditor, $wgServer, $wgFetchCommonsDescriptions;
 131                 $full_url  = $this->img->getViewURL();
 132                 $anchoropen = '';
 133                 $anchorclose = '';
 134
 135                 if( $wgUser->getOption( 'imagesize' ) == '' ) {
 136                         $sizeSel = User::getDefaultOption( 'imagesize' );
 137                 } else {
 138                         $sizeSel = IntVal( $wgUser->getOption( 'imagesize' ) );
 139                 }
 140                 if( !isset( $wgImageLimits[$sizeSel] ) ) {
 141                         $sizeSel = User::getDefaultOption( 'imagesize' );
 142                 }
 143                 $max = $wgImageLimits[$sizeSel];
 144                 $maxWidth = $max[0];
 145                 $maxHeight = $max[1];
 146                 $sk = $wgUser->getSkin();
 147
 148                 if ( $this->img->exists() ) {
 149                         # image
 150                         $width = $this->img->getWidth();
 151                         $height = $this->img->getHeight();
 152                         $showLink = false;
 153
 154                         if ( $this->img->allowInlineDisplay() and $width and $height) {
 155                                 # image
 156
 157                                 # "Download high res version" link below the image
 158                                 $msg = wfMsg('showbigimage', $width, $height, intval( $this->img->getSize()/1024 ) );
 159                                 if ( $width > $maxWidth ) {
 160                                         $height = floor( $height * $maxWidth / $width );
 161                                         $width  = $maxWidth;
 162                                 }
 163                                 if ( $height > $maxHeight ) {
 164                                         $width = floor( $width * $maxHeight / $height );
 165                                         $height = $maxHeight;
 166                                 }
 167                                 if ( !$this->img->mustRender()
 168                                    && ( $width != $this->img->getWidth() || $height != $this->img->getHeight() ) ) {
 169                                         if( $wgUseImageResize ) {
 170                                                 $thumbnail = $this->img->getThumbnail( $width );
 171                                                 if ( $thumbnail == null ) {
 172                                                         $url = $full_url;
 173                                                 } else {
 174                                                         $url = $thumbnail->getUrl();
 175                                                 }
 176                                         } else {
 177                                                 # No resize ability? Show the full image, but scale
 178                                                 # it down in the browser so it fits on the page.
 179                                                 $url = $full_url;
 180                                         }
 181                                         $anchoropen  = "<a href=\"{$full_url}\">";
 182                                         $anchorclose = "</a><br />\n$anchoropen{$msg}</a>";
 183                                 } else {
 184                                         $url = $full_url;
 185                                         $showLink = $this->img->mustRender();
 186                                 }
 187                                 $wgOut->addHTML( '<div class="fullImageLink" id="file">' . $anchoropen .
 188                                      "<img border=\"0\" src=\"{$url}\" width=\"{$width}\" height=\"{$height}\" alt=\"" .
 189                                      htmlspecialchars( $wgRequest->getVal( 'image' ) ).'" />' . $anchorclose . '</div>' );
 190                         } else {
 191                                 #if direct link is allowed but it's not a renderable image, show an icon.
 192                                 if ($this->img->isSafeFile()) {
 193                                         $icon= $this->img->iconThumb();
 194
 195                                         $wgOut->addHTML( '<div class="fullImageLink" id="file"><a href="' . $full_url . '">' .
 196                                         $icon->toHtml() .
 197                                         '</a></div>' );
 198                                 }
 199
 200                                 $showLink = true;
 201                         }
 202
 203
 204                         if ($showLink) {
 205                                 $s= $sk->makeMediaLink( $this->img->getName(), '', '', true );
 206                                 $info= wfMsg( 'fileinfo', ceil($this->img->getSize()/1024.0), $this->img->getMimeType() );
 207
 208                                 if (!$this->img->isSafeFile()) {
 209                                         $wgOut->addHTML("<div class=\"fullMedia\">");
 210                                         $wgOut->addHTML("<span class=\"dangerousLink\">");
 211                                         $wgOut->addHTML($s);
 212                                         $wgOut->addHTML("</span>");
 213
 214                                         $wgOut->addHTML("<span class=\"fileInfo\"> (");
 215                                         $wgOut->addWikiText( $info, false );
 216                                         $wgOut->addHTML(")</span>");
 217                                         $wgOut->addHTML("</div>");
 218
 219                                         #this should be formated a little nicer. Is CSS sufficient?
 220                                         $wgOut->addHTML("<div class=\"mediaWarning\">");
 221                                         $wgOut->addWikiText( wfMsg( 'mediawarning' ) );
 222                                         $wgOut->addHTML('</div>');
 223
 224                                 } else {
 225                                         $wgOut->addHTML("<div class=\"fullMedia\">");
 226                                         $wgOut->addHTML($s);
 227
 228                                         $wgOut->addHTML("<span class=\"fileInfo\"> (");
 229                                         $wgOut->addWikiText( $info, false );
 230                                         $wgOut->addHTML(")</span>");
 231
 232                                         $wgOut->addHTML("</div>");
 233                                 }
 234                         }
 235
 236                         if($this->img->fromSharedDirectory) {
 237                                 $this->printSharedImageText();
 238                         }
 239                 } else {
 240                         # Image does not exist
 241                         $wgOut->addWikiText( wfMsg( 'noimage', $this->getUploadUrl() ) );
 242                 }
 243         }
 244
 245         function printSharedImageText() {
 246                 global $wgRepositoryBaseUrl, $wgFetchCommonsDescriptions, $wgOut;
 247
 248                 $url = $wgRepositoryBaseUrl . urlencode($this->mTitle->getDBkey());
 249                 $sharedtext = "<div class='sharedUploadNotice'>" . wfMsg("sharedupload");
 250                 if ($wgRepositoryBaseUrl && !$wgFetchCommonsDescriptions) {
 251                         $sharedtext .= " " . wfMsg("shareduploadwiki", $url);
 252                 }
 253                 $sharedtext .= "</div>";
 254                 $wgOut->addWikiText($sharedtext);
 255
 256                 if ($wgRepositoryBaseUrl && $wgFetchCommonsDescriptions) {
 257                         $ur = ini_set('allow_url_fopen', true);
 258                         $text = wfGetHTTP($url . '?action=render');
 259                         ini_set('allow_url_fopen', $ur);
 260                         if ($text)
 261                                 $this->mExtraDescription = $text;
 262                 }
 263         }
 264
 265         function getUploadUrl() {
 266                 global $wgServer;
 267                 $uploadTitle = Title::makeTitle( NS_SPECIAL, 'Upload' );
 268                 return $wgServer . $uploadTitle->getLocalUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) );
 269         }
 270
 271
 272         function uploadLinksBox()
 273         {
 274                 global $wgUser, $wgOut;
 275
 276                 if ($this->img->fromSharedDirectory)
 277                         return;
 278
 279                 $sk = $wgUser->getSkin();
 280                 $wgOut->addHTML( '<br /><ul><li>' );
 281                 $wgOut->addWikiText( '<div>'. wfMsg( 'uploadnewversion', $this->getUploadUrl() ) .'</div>' );
 282                 $wgOut->addHTML( '</li><li>' );
 283                 $wgOut->addHTML( $sk->makeKnownLinkObj( $this->mTitle,
 284                         wfMsg( 'edit-externally' ), "action=edit&externaledit=true&mode=file" ) );
 285                 $wgOut->addWikiText( '<div>' .  wfMsg('edit-externally-help') . '</div>' );
 286                 $wgOut->addHTML( '</li></ul>' );
 287         }
 288
 289         function closeShowImage()
 290         {
 291                 # For overloading
 292
 293         }
 294
 295         /**
 296          * If the page we've just displayed is in the "Image" namespace,
 297          * we follow it with an upload history of the image and its usage.
 298          */
 299         function imageHistory()
 300         {
 301                 global $wgUser, $wgOut, $wgUseExternalEditor;
 302
 303                 $sk = $wgUser->getSkin();
 304
 305                 $line = $this->img->nextHistoryLine();
 306
 307                 if ( $line ) {
 308                         $list =& new ImageHistoryList( $sk );
 309                         $s = $list->beginImageHistoryList() .
 310                                 $list->imageHistoryLine( true, $line->img_timestamp,
 311                                         $this->mTitle->getDBkey(),  $line->img_user,
 312                                         $line->img_user_text, $line->img_size, $line->img_description );
 313
 314                         while ( $line = $this->img->nextHistoryLine() ) {
 315                                 $s .= $list->imageHistoryLine( false, $line->img_timestamp,
 316                                 $line->oi_archive_name, $line->img_user,
 317                                 $line->img_user_text, $line->img_size, $line->img_description );
 318                         }
 319                         $s .= $list->endImageHistoryList();
 320                 } else { $s=''; }
 321                 $wgOut->addHTML( $s );
 322
 323                 # Exist check because we don't want to show this on pages where an image
 324                 # doesn't exist along with the noimage message, that would suck. -ævar
 325                 if( $wgUseExternalEditor && $this->img->exists() ) {
 326                         $this->uploadLinksBox();
 327                 }
 328
 329         }
 330
 331         function imageLinks()
 332         {
 333                 global $wgUser, $wgOut;
 334
 335                 $wgOut->addHTML( '<h2 id="filelinks">' . wfMsg( 'imagelinks' ) . "</h2>\n" );
 336
 337                 $dbr =& wfGetDB( DB_SLAVE );
 338                 $page = $dbr->tableName( 'page' );
 339                 $imagelinks = $dbr->tableName( 'imagelinks' );
 340
 341                 $sql = "SELECT page_namespace,page_title FROM $imagelinks,$page WHERE il_to=" .
 342                   $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=page_id"
 343                   . " LIMIT 500"; # quickie emergency brake
 344                 $res = $dbr->query( $sql, "ImagePage::imageLinks" );
 345
 346                 if ( 0 == $dbr->numRows( $res ) ) {
 347                         $wgOut->addHtml( '<p>' . wfMsg( "nolinkstoimage" ) . "</p>\n" );
 348                         return;
 349                 }
 350                 $wgOut->addHTML( '<p>' . wfMsg( 'linkstoimage' ) .  "</p>\n<ul>" );
 351
 352                 $sk = $wgUser->getSkin();
 353                 while ( $s = $dbr->fetchObject( $res ) ) {
 354                         $name = Title::MakeTitle( $s->page_namespace, $s->page_title );
 355                         $link = $sk->makeKnownLinkObj( $name, "" );
 356                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 357                 }
 358                 $wgOut->addHTML( "</ul>\n" );
 359         }
 360
 361         function delete()
 362         {
 363                 global $wgUser, $wgOut, $wgRequest;
 364
 365                 $confirm = $wgRequest->getBool( 'wpConfirmB' );
 366                 $image = $wgRequest->getVal( 'image' );
 367                 $oldimage = $wgRequest->getVal( 'oldimage' );
 368
 369                 # Only sysops can delete images. Previously ordinary users could delete
 370                 # old revisions, but this is no longer the case.
 371                 if ( !$wgUser->isAllowed('delete') ) {
 372                         $wgOut->sysopRequired();
 373                         return;
 374                 }
 375                 if ( $wgUser->isBlocked() ) {
 376                         return $this->blockedIPpage();
 377                 }
 378                 if ( wfReadOnly() ) {
 379                         $wgOut->readOnlyPage();
 380                         return;
 381                 }
 382
 383                 # Better double-check that it hasn't been deleted yet!
 384                 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
 385                 if ( ( !is_null( $image ) )
 386                   && ( '' == trim( $image ) ) ) {
 387                         $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
 388                         return;
 389                 }
 390
 391                 $this->img  = new Image( $this->mTitle );
 392
 393                 # Deleting old images doesn't require confirmation
 394                 if ( !is_null( $oldimage ) || $confirm ) {
 395                         if( $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 396                                 $this->doDelete();
 397                         } else {
 398                                 $wgOut->fatalError( wfMsg( 'sessionfailure' ) );
 399                         }
 400                         return;
 401                 }
 402
 403                 if ( !is_null( $image ) ) {
 404                         $q = '&image=' . urlencode( $image );
 405                 } else if ( !is_null( $oldimage ) ) {
 406                         $q = '&oldimage=' . urlencode( $oldimage );
 407                 } else {
 408                         $q = '';
 409                 }
 410                 return $this->confirmDelete( $q, $wgRequest->getText( 'wpReason' ) );
 411         }
 412
 413         function doDelete()
 414         {
 415                 global $wgOut, $wgUser, $wgContLang, $wgRequest;
 416                 global $wgUseSquid, $wgInternalServer, $wgPostCommitUpdateList;
 417                 $fname = 'ImagePage::doDelete';
 418
 419                 $reason = $wgRequest->getVal( 'wpReason' );
 420                 $oldimage = $wgRequest->getVal( 'oldimage' );
 421
 422                 $dbw =& wfGetDB( DB_MASTER );
 423
 424                 if ( !is_null( $oldimage ) ) {
 425                         if ( strlen( $oldimage ) < 16 ) {
 426                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 427                                 return;
 428                         }
 429                         if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 430                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 431                                 return;
 432                         }
 433
 434                         # Invalidate description page cache
 435                         $this->mTitle->invalidateCache();
 436
 437                         # Squid purging
 438                         if ( $wgUseSquid ) {
 439                                 $urlArr = Array(
 440                                         $wgInternalServer.wfImageArchiveUrl( $oldimage ),
 441                                         $wgInternalServer.$this->mTitle->getFullURL()
 442                                 );
 443                                 wfPurgeSquidServers($urlArr);
 444                         }
 445                         $this->doDeleteOldImage( $oldimage );
 446                         $dbw->delete( 'oldimage', array( 'oi_archive_name' => $oldimage ) );
 447                         $deleted = $oldimage;
 448                 } else {
 449                         $image = $this->mTitle->getDBkey();
 450                         $dest = wfImageDir( $image );
 451                         $archive = wfImageDir( $image );
 452
 453                         # Delete the image file if it exists; due to sync problems
 454                         # or manual trimming sometimes the file will be missing.
 455                         $targetFile = "{$dest}/{$image}";
 456                         if( file_exists( $targetFile ) && ! @unlink( $targetFile ) ) {
 457                                 # If the deletion operation actually failed, bug out:
 458                                 $wgOut->fileDeleteError( $targetFile );
 459                                 return;
 460                         }
 461                         $dbw->delete( 'image', array( 'img_name' => $image ) );
 462                         $res = $dbw->select( 'oldimage', array( 'oi_archive_name' ), array( 'oi_name' => $image ) );
 463
 464                         # Purge archive URLs from the squid
 465                         $urlArr = Array();
 466                         while ( $s = $dbw->fetchObject( $res ) ) {
 467                                 $this->doDeleteOldImage( $s->oi_archive_name );
 468                                 $urlArr[] = $wgInternalServer.wfImageArchiveUrl( $s->oi_archive_name );
 469                         }
 470
 471                         # And also the HTML of all pages using this image
 472                         $linksTo = $this->img->getLinksTo();
 473                         if ( $wgUseSquid ) {
 474                                 $u = SquidUpdate::newFromTitles( $linksTo, $urlArr );
 475                                 array_push( $wgPostCommitUpdateList, $u );
 476                         }
 477
 478                         $dbw->delete( 'oldimage', array( 'oi_name' => $image ) );
 479
 480                         # Image itself is now gone, and database is cleaned.
 481                         # Now we remove the image description page.
 482
 483                         $article = new Article( $this->mTitle );
 484                         $article->doDeleteArticle( $reason ); # ignore errors
 485
 486                         # Invalidate parser cache and client cache for pages using this image
 487                         # This is left until relatively late to reduce lock time
 488                         Title::touchArray( $linksTo );
 489
 490                         /* Delete thumbnails and refresh image metadata cache */
 491                         $this->img->purgeCache();
 492
 493
 494                         $deleted = $image;
 495                 }
 496
 497                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 498                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 499
 500                 $loglink = '[[Special:Log/delete|' . wfMsg( 'deletionlog' ) . ']]';
 501                 $text = wfMsg( 'deletedtext', $deleted, $loglink );
 502
 503                 $wgOut->addWikiText( $text );
 504
 505                 $wgOut->returnToMain( false, $this->mTitle->getPrefixedText() );
 506         }
 507
 508         function doDeleteOldImage( $oldimage )
 509         {
 510                 global $wgOut;
 511
 512                 $name = substr( $oldimage, 15 );
 513                 $archive = wfImageArchiveDir( $name );
 514
 515                 # Delete the image if it exists. Sometimes the file will be missing
 516                 # due to manual intervention or weird sync problems; treat that
 517                 # condition gracefully and continue to delete the database entry.
 518                 # Also some records may end up with an empty oi_archive_name field
 519                 # if the original file was missing when a new upload was made;
 520                 # don't try to delete the directory then!
 521                 #
 522                 $targetFile = "{$archive}/{$oldimage}";
 523                 if( $oldimage != '' && file_exists( $targetFile ) && !@unlink( $targetFile ) ) {
 524                         # If we actually have a file and can't delete it, throw an error.
 525                         $wgOut->fileDeleteError( "{$archive}/{$oldimage}" );
 526                 } else {
 527                         # Log the deletion
 528                         $log = new LogPage( 'delete' );
 529                         $log->addEntry( 'delete', $this->mTitle, wfMsg('deletedrevision',$oldimage) );
 530                 }
 531         }
 532
 533         function revert()
 534         {
 535                 global $wgOut, $wgRequest, $wgUser;
 536                 global $wgUseSquid, $wgInternalServer, $wgDeferredUpdateList;
 537
 538                 $oldimage = $wgRequest->getText( 'oldimage' );
 539                 if ( strlen( $oldimage ) < 16 ) {
 540                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 541                         return;
 542                 }
 543                 if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 544                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 545                         return;
 546                 }
 547
 548                 if ( wfReadOnly() ) {
 549                         $wgOut->readOnlyPage();
 550                         return;
 551                 }
 552                 if( $wgUser->isAnon() ) {
 553                         $wgOut->errorpage( 'uploadnologin', 'uploadnologintext' );
 554                         return;
 555                 }
 556                 if ( ! $this->mTitle->userCanEdit() ) {
 557                         $wgOut->sysopRequired();
 558                         return;
 559                 }
 560                 if ( $wgUser->isBlocked() ) {
 561                         return $this->blockedIPpage();
 562                 }
 563                 if( !$wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 564                         $wgOut->errorpage( 'internalerror', 'sessionfailure' );
 565                         return;
 566                 }
 567                 $name = substr( $oldimage, 15 );
 568
 569                 $dest = wfImageDir( $name );
 570                 $archive = wfImageArchiveDir( $name );
 571                 $curfile = "{$dest}/{$name}";
 572
 573                 if ( ! is_file( $curfile ) ) {
 574                         $wgOut->fileNotFoundError( htmlspecialchars( $curfile ) );
 575                         return;
 576                 }
 577                 $oldver = wfTimestampNow() . "!{$name}";
 578
 579                 $dbr =& wfGetDB( DB_SLAVE );
 580                 $size = $dbr->selectField( 'oldimage', 'oi_size', array( 'oi_archive_name' => $oldimage )  );
 581
 582                 if ( ! rename( $curfile, "${archive}/{$oldver}" ) ) {
 583                         $wgOut->fileRenameError( $curfile, "${archive}/{$oldver}" );
 584                         return;
 585                 }
 586                 if ( ! copy( "{$archive}/{$oldimage}", $curfile ) ) {
 587                         $wgOut->fileCopyError( "${archive}/{$oldimage}", $curfile );
 588                 }
 589
 590                 # Record upload and update metadata cache
 591                 $img = Image::newFromName( $name );
 592                 $img->recordUpload( $oldver, wfMsg( "reverted" ) );
 593
 594                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 595                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 596                 $wgOut->addHTML( wfMsg( 'imagereverted' ) );
 597
 598                 $descTitle = $img->getTitle();
 599                 $wgOut->returnToMain( false, $descTitle->getPrefixedText() );
 600         }
 601
 602         function blockedIPpage() {
 603                 require_once( 'EditPage.php' );
 604                 $edit = new EditPage( $this );
 605                 return $edit->blockedIPpage();
 606         }
 607
 608 }
 609
 610 /**
 611  * @todo document
 612  * @package MediaWiki
 613  */
 614 class ImageHistoryList {
 615         function ImageHistoryList( &$skin ) {
 616                 $this->skin =& $skin;
 617         }
 618
 619         function beginImageHistoryList() {
 620                 $s = "\n<h2 id=\"filehistory\">" . wfMsg( 'imghistory' ) . "</h2>\n" .
 621                   "<p>" . wfMsg( 'imghistlegend' ) . "</p>\n".'<ul class="special">';
 622                 return $s;
 623         }
 624
 625         function endImageHistoryList() {
 626                 $s = "</ul>\n";
 627                 return $s;
 628         }
 629
 630         function imageHistoryLine( $iscur, $timestamp, $img, $user, $usertext, $size, $description ) {
 631                 global $wgUser, $wgLang, $wgContLang, $wgTitle;
 632
 633                 $datetime = $wgLang->timeanddate( $timestamp, true );
 634                 $del = wfMsg( 'deleteimg' );
 635                 $delall = wfMsg( 'deleteimgcompletely' );
 636                 $cur = wfMsg( 'cur' );
 637
 638                 if ( $iscur ) {
 639                         $url = Image::imageUrl( $img );
 640                         $rlink = $cur;
 641                         if ( $wgUser->isAllowed('delete') ) {
 642                                 $link = $wgTitle->escapeLocalURL( 'image=' . $wgTitle->getPartialURL() .
 643                                   '&action=delete' );
 644                                 $style = $this->skin->getInternalLinkAttributes( $link, $delall );
 645
 646                                 $dlink = '<a href="'.$link.'"'.$style.'>'.$delall.'</a>';
 647                         } else {
 648                                 $dlink = $del;
 649                         }
 650                 } else {
 651                         $url = htmlspecialchars( wfImageArchiveUrl( $img ) );
 652                         if( $wgUser->getID() != 0 && $wgTitle->userCanEdit() ) {
 653                                 $token = urlencode( $wgUser->editToken( $img ) );
 654                                 $rlink = $this->skin->makeKnownLinkObj( $wgTitle,
 655                                            wfMsg( 'revertimg' ), 'action=revert&oldimage=' .
 656                                            urlencode( $img ) . "&wpEditToken=$token" );
 657                                 $dlink = $this->skin->makeKnownLinkObj( $wgTitle,
 658                                            $del, 'action=delete&oldimage=' . urlencode( $img ) .
 659                                            "&wpEditToken=$token" );
 660                         } else {
 661                                 # Having live active links for non-logged in users
 662                                 # means that bots and spiders crawling our site can
 663                                 # inadvertently change content. Baaaad idea.
 664                                 $rlink = wfMsg( 'revertimg' );
 665                                 $dlink = $del;
 666                         }
 667                 }
 668                 if ( 0 == $user ) {
 669                         $userlink = $usertext;
 670                 } else {
 671                         $userlink = $this->skin->makeLinkObj(
 672                                 Title::makeTitle( NS_USER, $usertext ),
 673                                 $usertext );
 674                 }
 675                 $nbytes = wfMsg( 'nbytes', $size );
 676                 $style = $this->skin->getInternalLinkAttributes( $url, $datetime );
 677
 678                 $s = "<li> ({$dlink}) ({$rlink}) <a href=\"{$url}\"{$style}>{$datetime}</a>"
 679                   . " . . {$userlink} ({$nbytes})";
 680
 681                 $s .= $this->skin->commentBlock( $description, $wgTitle );
 682                 $s .= "</li>\n";
 683                 return $s;
 684         }
 685
 686 }
 687
 688
 689 ?>