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                                 $fol = wfMsg('shareddescriptionfollows');
  64                                 if ($fol != '-')
  65                                         $wgOut->addWikiText(wfMsg('shareddescriptionfollows'));
  66                                 $wgOut->addHTML($this->mExtraDescription);
  67                         }
  68
  69                         $this->closeShowImage();
  70                         $this->imageHistory();
  71                         $this->imageLinks();
  72                 } else {
  73                         Article::view();
  74                 }
  75         }
  76
  77         /**
  78          * Create the TOC
  79          *
  80          * @access private
  81          *
  82          * @param bool $metadata Whether or not to show the metadata link
  83          * @return string
  84          */
  85         function showTOC( $metadata ) {
  86                 global $wgLang;
  87                 $r = '<ul id="filetoc">
  88                         <li><a href="#file">' . $wgLang->getNsText( NS_IMAGE ) . '</a></li>' .
  89                         ($metadata ? '<li><a href="#metadata">' . wfMsgHtml( 'metadata' ) . '</a></li>' : '') . '
  90                         <li><a href="#filehistory">' . wfMsgHtml( 'imghistory' ) . '</a></li>
  91                         <li><a href="#filelinks">' . wfMsgHtml( 'imagelinks' ) . '</a></li>
  92                 </ul>';
  93                 return $r;
  94         }
  95
  96         /**
  97          * Make a table with metadata to be shown in the output page.
  98          *
  99          * @access private
 100          *
 101          * @param array $exif The array containing the EXIF data
 102          * @return string
 103          */
 104         function makeMetadataTable( $exif ) {
 105                 $r = "{| class=metadata align=right width=250px\n";
 106                 $r .= '|+ id=metadata | '. htmlspecialchars( wfMsgHtml( 'metadata' ) ) . "\n";
 107                 foreach( $exif as $k => $v ) {
 108                         $tag = strtolower( $k );
 109                         $r .= "! class=$tag |" . wfMsg( "exif-$tag" ) . "\n";
 110                         $r .= "| class=$tag |" . htmlspecialchars( $v ) . "\n";
 111                         $r .= "|-\n";
 112                 }
 113                 return substr($r, 0, -3) . '|}';
 114         }
 115
 116         /**
 117          * Overloading Article's getContent method.
 118          * Omit noarticletext if sharedupload
 119          *
 120          * @param $noredir If true, do not follow redirects
 121          */
 122         function getContent( $noredir )
 123         {
 124                 if ( $this->img && $this->img->fromSharedDirectory && 0 == $this->getID() ) {
 125                         return '';
 126                 }
 127                 return Article::getContent( $noredir );
 128         }
 129
 130         function openShowImage()
 131         {
 132                 global $wgOut, $wgUser, $wgImageLimits, $wgRequest,
 133                        $wgUseImageResize, $wgRepositoryBaseUrl,
 134                        $wgUseExternalEditor, $wgServer, $wgFetchCommonsDescriptions;
 135                 $full_url  = $this->img->getURL();
 136                 $anchoropen = '';
 137                 $anchorclose = '';
 138
 139                 if( $wgUser->getOption( 'imagesize' ) == '' ) {
 140                         $sizeSel = User::getDefaultOption( 'imagesize' );
 141                 } else {
 142                         $sizeSel = intval( $wgUser->getOption( 'imagesize' ) );
 143                 }
 144                 if( !isset( $wgImageLimits[$sizeSel] ) ) {
 145                         $sizeSel = User::getDefaultOption( 'imagesize' );
 146                 }
 147                 $max = $wgImageLimits[$sizeSel];
 148                 $maxWidth = $max[0];
 149                 $maxHeight = $max[1];
 150                 $sk = $wgUser->getSkin();
 151
 152                 if ( $this->img->exists() ) {
 153                         # image
 154                         $width = $this->img->getWidth();
 155                         $height = $this->img->getHeight();
 156                         $showLink = false;
 157
 158                         if ( $this->img->allowInlineDisplay() and $width and $height) {
 159                                 # image
 160
 161                                 # "Download high res version" link below the image
 162                                 $msg = wfMsgHtml('showbigimage', $width, $height, intval( $this->img->getSize()/1024 ) );
 163                                 if ( $width > $maxWidth ) {
 164                                         $height = floor( $height * $maxWidth / $width );
 165                                         $width  = $maxWidth;
 166                                 }
 167                                 if ( $height > $maxHeight ) {
 168                                         $width = floor( $width * $maxHeight / $height );
 169                                         $height = $maxHeight;
 170                                 }
 171                                 if ( $width != $this->img->getWidth() || $height != $this->img->getHeight() ) {
 172                                         if( $wgUseImageResize ) {
 173                                                 $thumbnail = $this->img->getThumbnail( $width );
 174                                                 if ( $thumbnail == null ) {
 175                                                         $url = $img->getViewURL();
 176                                                 } else {
 177                                                         $url = $thumbnail->getURL();
 178                                                 }
 179                                         } else {
 180                                                 # No resize ability? Show the full image, but scale
 181                                                 # it down in the browser so it fits on the page.
 182                                                 $url = $img->getViewURL();
 183                                         }
 184                                         $anchoropen  = "<a href=\"{$full_url}\">";
 185                                         $anchorclose = "</a><br />";
 186                                         if( $this->img->mustRender() ) {
 187                                                 $showLink = true;
 188                                         } else {
 189                                                 $anchorclose .= "\n$anchoropen{$msg}</a>";
 190                                         }
 191                                 } else {
 192                                         $url = $this->img->getViewURL();
 193                                         $showLink = true;
 194                                 }
 195                                 $wgOut->addHTML( '<div class="fullImageLink" id="file">' . $anchoropen .
 196                                      "<img border=\"0\" src=\"{$url}\" width=\"{$width}\" height=\"{$height}\" alt=\"" .
 197                                      htmlspecialchars( $wgRequest->getVal( 'image' ) ).'" />' . $anchorclose . '</div>' );
 198                         } else {
 199                                 #if direct link is allowed but it's not a renderable image, show an icon.
 200                                 if ($this->img->isSafeFile()) {
 201                                         $icon= $this->img->iconThumb();
 202
 203                                         $wgOut->addHTML( '<div class="fullImageLink" id="file"><a href="' . $full_url . '">' .
 204                                         $icon->toHtml() .
 205                                         '</a></div>' );
 206                                 }
 207
 208                                 $showLink = true;
 209                         }
 210
 211
 212                         if ($showLink) {
 213                                 $filename = wfEscapeWikiText( $this->img->getName() );
 214                                 $info = wfMsg( 'fileinfo',
 215                                         ceil($this->img->getSize()/1024.0),
 216                                         $this->img->getMimeType() );
 217
 218                                 if (!$this->img->isSafeFile()) {
 219                                         $warning = wfMsg( 'mediawarning' );
 220                                         $wgOut->addWikiText( <<<END
 221 <div class="fullMedia">
 222 <span class="dangerousLink">[[Media:$filename|$filename]]</span>
 223 <span class="fileInfo"> ($info)</span>
 224 </div>
 225
 226 <div class="mediaWarning">$warning</div>
 227 END
 228                                                 );
 229                                 } else {
 230                                         $wgOut->addWikiText( <<<END
 231 <div class="fullMedia">
 232 [[Media:$filename|$filename]] <span class="fileInfo"> ($info)</span>
 233 </div>
 234 END
 235                                                 );
 236                                 }
 237                         }
 238
 239                         if($this->img->fromSharedDirectory) {
 240                                 $this->printSharedImageText();
 241                         }
 242                 } else {
 243                         # Image does not exist
 244
 245                         $title = Title::makeTitle( NS_SPECIAL, 'Upload' );
 246                         $link = $sk->makeKnownLinkObj($title, wfMsgHtml('noimage-linktext'),
 247                                 'wpDestFile=' . urlencode( $this->img->getName() ) );
 248                         $wgOut->addHTML( wfMsgWikiHtml( 'noimage', $link ) );
 249                 }
 250         }
 251
 252         function printSharedImageText() {
 253                 global $wgRepositoryBaseUrl, $wgFetchCommonsDescriptions, $wgOut, $wgUser;
 254
 255                 $url = $wgRepositoryBaseUrl . urlencode($this->mTitle->getDBkey());
 256                 $sharedtext = "<div class='sharedUploadNotice'>" . wfMsgWikiHtml("sharedupload");
 257                 if ($wgRepositoryBaseUrl && !$wgFetchCommonsDescriptions) {
 258
 259                         $sk = $wgUser->getSkin();
 260                         $title = Title::makeTitle( NS_SPECIAL, 'Upload' );
 261                         $link = $sk->makeKnownLinkObj($title, wfMsgHtml('shareduploadwiki-linktext'),
 262                         array( 'wpDestFile' => urlencode( $this->img->getName() )));
 263                         $sharedtext .= " " . wfMsgWikiHtml('shareduploadwiki', $link);
 264                 }
 265                 $sharedtext .= "</div>";
 266                 $wgOut->addHTML($sharedtext);
 267
 268                 if ($wgRepositoryBaseUrl && $wgFetchCommonsDescriptions) {
 269                         require_once("HttpFunctions.php");
 270                         $ur = ini_set('allow_url_fopen', true);
 271                         $text = wfGetHTTP($url . '?action=render');
 272                         ini_set('allow_url_fopen', $ur);
 273                         if ($text)
 274                                 $this->mExtraDescription = $text;
 275                 }
 276         }
 277
 278         function getUploadUrl() {
 279                 global $wgServer;
 280                 $uploadTitle = Title::makeTitle( NS_SPECIAL, 'Upload' );
 281                 return $wgServer . $uploadTitle->getLocalUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) );
 282         }
 283
 284
 285         function uploadLinksBox()
 286         {
 287                 global $wgUser, $wgOut;
 288
 289                 if ($this->img->fromSharedDirectory)
 290                         return;
 291
 292                 $sk = $wgUser->getSkin();
 293                 $wgOut->addHTML( '<br /><ul>' );
 294                 if( $wgUser->isAllowed( 'reupload' ) ) {
 295                         $wgOut->addWikiText( "<li>\n<div>". wfMsg( 'uploadnewversion', $this->getUploadUrl() ) ."</div>\n</li>\n" );
 296                 }
 297                 $wgOut->addHTML( '<li>' );
 298                 $wgOut->addHTML( $sk->makeKnownLinkObj( $this->mTitle,
 299                         wfMsg( 'edit-externally' ), "action=edit&externaledit=true&mode=file" ) );
 300                 $wgOut->addWikiText( '<div>' .  wfMsg('edit-externally-help') . '</div>' );
 301                 $wgOut->addHTML( '</li></ul>' );
 302         }
 303
 304         function closeShowImage()
 305         {
 306                 # For overloading
 307
 308         }
 309
 310         /**
 311          * If the page we've just displayed is in the "Image" namespace,
 312          * we follow it with an upload history of the image and its usage.
 313          */
 314         function imageHistory()
 315         {
 316                 global $wgUser, $wgOut, $wgUseExternalEditor;
 317
 318                 $sk = $wgUser->getSkin();
 319
 320                 $line = $this->img->nextHistoryLine();
 321
 322                 if ( $line ) {
 323                         $list =& new ImageHistoryList( $sk );
 324                         $s = $list->beginImageHistoryList() .
 325                                 $list->imageHistoryLine( true, wfTimestamp(TS_MW, $line->img_timestamp),
 326                                         $this->mTitle->getDBkey(),  $line->img_user,
 327                                         $line->img_user_text, $line->img_size, $line->img_description );
 328
 329                         while ( $line = $this->img->nextHistoryLine() ) {
 330                                 $s .= $list->imageHistoryLine( false, $line->img_timestamp,
 331                                 $line->oi_archive_name, $line->img_user,
 332                                 $line->img_user_text, $line->img_size, $line->img_description );
 333                         }
 334                         $s .= $list->endImageHistoryList();
 335                 } else { $s=''; }
 336                 $wgOut->addHTML( $s );
 337
 338                 # Exist check because we don't want to show this on pages where an image
 339                 # doesn't exist along with the noimage message, that would suck. -ævar
 340                 if( $wgUseExternalEditor && $this->img->exists() ) {
 341                         $this->uploadLinksBox();
 342                 }
 343
 344         }
 345
 346         function imageLinks()
 347         {
 348                 global $wgUser, $wgOut;
 349
 350                 $wgOut->addHTML( '<h2 id="filelinks">' . wfMsg( 'imagelinks' ) . "</h2>\n" );
 351
 352                 $dbr =& wfGetDB( DB_SLAVE );
 353                 $page = $dbr->tableName( 'page' );
 354                 $imagelinks = $dbr->tableName( 'imagelinks' );
 355
 356                 $sql = "SELECT page_namespace,page_title FROM $imagelinks,$page WHERE il_to=" .
 357                   $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=page_id";
 358                 $sql = $dbr->limitResult($sql, 500, 0);
 359                 $res = $dbr->query( $sql, "ImagePage::imageLinks" );
 360
 361                 if ( 0 == $dbr->numRows( $res ) ) {
 362                         $wgOut->addHtml( '<p>' . wfMsg( "nolinkstoimage" ) . "</p>\n" );
 363                         return;
 364                 }
 365                 $wgOut->addHTML( '<p>' . wfMsg( 'linkstoimage' ) .  "</p>\n<ul>" );
 366
 367                 $sk = $wgUser->getSkin();
 368                 while ( $s = $dbr->fetchObject( $res ) ) {
 369                         $name = Title::MakeTitle( $s->page_namespace, $s->page_title );
 370                         $link = $sk->makeKnownLinkObj( $name, "" );
 371                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 372                 }
 373                 $wgOut->addHTML( "</ul>\n" );
 374         }
 375
 376         function delete()
 377         {
 378                 global $wgUser, $wgOut, $wgRequest;
 379
 380                 $confirm = $wgRequest->getBool( 'wpConfirmB' );
 381                 $image = $wgRequest->getVal( 'image' );
 382                 $oldimage = $wgRequest->getVal( 'oldimage' );
 383
 384                 # Only sysops can delete images. Previously ordinary users could delete
 385                 # old revisions, but this is no longer the case.
 386                 if ( !$wgUser->isAllowed('delete') ) {
 387                         $wgOut->sysopRequired();
 388                         return;
 389                 }
 390                 if ( $wgUser->isBlocked() ) {
 391                         return $this->blockedIPpage();
 392                 }
 393                 if ( wfReadOnly() ) {
 394                         $wgOut->readOnlyPage();
 395                         return;
 396                 }
 397
 398                 # Better double-check that it hasn't been deleted yet!
 399                 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
 400                 if ( ( !is_null( $image ) )
 401                   && ( '' == trim( $image ) ) ) {
 402                         $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
 403                         return;
 404                 }
 405
 406                 $this->img  = new Image( $this->mTitle );
 407
 408                 # Deleting old images doesn't require confirmation
 409                 if ( !is_null( $oldimage ) || $confirm ) {
 410                         if( $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 411                                 $this->doDelete();
 412                         } else {
 413                                 $wgOut->fatalError( wfMsg( 'sessionfailure' ) );
 414                         }
 415                         return;
 416                 }
 417
 418                 if ( !is_null( $image ) ) {
 419                         $q = '&image=' . urlencode( $image );
 420                 } else if ( !is_null( $oldimage ) ) {
 421                         $q = '&oldimage=' . urlencode( $oldimage );
 422                 } else {
 423                         $q = '';
 424                 }
 425                 return $this->confirmDelete( $q, $wgRequest->getText( 'wpReason' ) );
 426         }
 427
 428         function doDelete()
 429         {
 430                 global $wgOut, $wgUser, $wgContLang, $wgRequest;
 431                 global $wgUseSquid, $wgInternalServer, $wgPostCommitUpdateList;
 432                 $fname = 'ImagePage::doDelete';
 433
 434                 $reason = $wgRequest->getVal( 'wpReason' );
 435                 $oldimage = $wgRequest->getVal( 'oldimage' );
 436
 437                 $dbw =& wfGetDB( DB_MASTER );
 438
 439                 if ( !is_null( $oldimage ) ) {
 440                         if ( strlen( $oldimage ) < 16 ) {
 441                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 442                                 return;
 443                         }
 444                         if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 445                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 446                                 return;
 447                         }
 448
 449                         # Invalidate description page cache
 450                         $this->mTitle->invalidateCache();
 451
 452                         # Squid purging
 453                         if ( $wgUseSquid ) {
 454                                 $urlArr = Array(
 455                                         $wgInternalServer.wfImageArchiveUrl( $oldimage ),
 456                                         $wgInternalServer.$this->mTitle->getFullURL()
 457                                 );
 458                                 wfPurgeSquidServers($urlArr);
 459                         }
 460                         $this->doDeleteOldImage( $oldimage );
 461                         $dbw->delete( 'oldimage', array( 'oi_archive_name' => $oldimage ) );
 462                         $deleted = $oldimage;
 463                 } else {
 464                         $image = $this->mTitle->getDBkey();
 465                         $dest = wfImageDir( $image );
 466                         $archive = wfImageDir( $image );
 467
 468                         # Delete the image file if it exists; due to sync problems
 469                         # or manual trimming sometimes the file will be missing.
 470                         $targetFile = "{$dest}/{$image}";
 471                         if( file_exists( $targetFile ) && ! @unlink( $targetFile ) ) {
 472                                 # If the deletion operation actually failed, bug out:
 473                                 $wgOut->fileDeleteError( $targetFile );
 474                                 return;
 475                         }
 476                         $dbw->delete( 'image', array( 'img_name' => $image ) );
 477                         $res = $dbw->select( 'oldimage', array( 'oi_archive_name' ), array( 'oi_name' => $image ) );
 478
 479                         # Purge archive URLs from the squid
 480                         $urlArr = Array();
 481                         while ( $s = $dbw->fetchObject( $res ) ) {
 482                                 $this->doDeleteOldImage( $s->oi_archive_name );
 483                                 $urlArr[] = $wgInternalServer.wfImageArchiveUrl( $s->oi_archive_name );
 484                         }
 485
 486                         # And also the HTML of all pages using this image
 487                         $linksTo = $this->img->getLinksTo();
 488                         if ( $wgUseSquid ) {
 489                                 $u = SquidUpdate::newFromTitles( $linksTo, $urlArr );
 490                                 array_push( $wgPostCommitUpdateList, $u );
 491                         }
 492
 493                         $dbw->delete( 'oldimage', array( 'oi_name' => $image ) );
 494
 495                         # Image itself is now gone, and database is cleaned.
 496                         # Now we remove the image description page.
 497
 498                         $article = new Article( $this->mTitle );
 499                         $article->doDeleteArticle( $reason ); # ignore errors
 500
 501                         # Invalidate parser cache and client cache for pages using this image
 502                         # This is left until relatively late to reduce lock time
 503                         Title::touchArray( $linksTo );
 504
 505                         /* Delete thumbnails and refresh image metadata cache */
 506                         $this->img->purgeCache();
 507
 508
 509                         $deleted = $image;
 510                 }
 511
 512                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 513                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 514
 515                 $loglink = '[[Special:Log/delete|' . wfMsg( 'deletionlog' ) . ']]';
 516                 $text = wfMsg( 'deletedtext', $deleted, $loglink );
 517
 518                 $wgOut->addWikiText( $text );
 519
 520                 $wgOut->returnToMain( false, $this->mTitle->getPrefixedText() );
 521         }
 522
 523         function doDeleteOldImage( $oldimage )
 524         {
 525                 global $wgOut;
 526
 527                 $name = substr( $oldimage, 15 );
 528                 $archive = wfImageArchiveDir( $name );
 529
 530                 # Delete the image if it exists. Sometimes the file will be missing
 531                 # due to manual intervention or weird sync problems; treat that
 532                 # condition gracefully and continue to delete the database entry.
 533                 # Also some records may end up with an empty oi_archive_name field
 534                 # if the original file was missing when a new upload was made;
 535                 # don't try to delete the directory then!
 536                 #
 537                 $targetFile = "{$archive}/{$oldimage}";
 538                 if( $oldimage != '' && file_exists( $targetFile ) && !@unlink( $targetFile ) ) {
 539                         # If we actually have a file and can't delete it, throw an error.
 540                         $wgOut->fileDeleteError( "{$archive}/{$oldimage}" );
 541                 } else {
 542                         # Log the deletion
 543                         $log = new LogPage( 'delete' );
 544                         $log->addEntry( 'delete', $this->mTitle, wfMsg('deletedrevision',$oldimage) );
 545                 }
 546         }
 547
 548         function revert()
 549         {
 550                 global $wgOut, $wgRequest, $wgUser;
 551                 global $wgUseSquid, $wgInternalServer, $wgDeferredUpdateList;
 552
 553                 $oldimage = $wgRequest->getText( 'oldimage' );
 554                 if ( strlen( $oldimage ) < 16 ) {
 555                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 556                         return;
 557                 }
 558                 if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 559                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 560                         return;
 561                 }
 562
 563                 if ( wfReadOnly() ) {
 564                         $wgOut->readOnlyPage();
 565                         return;
 566                 }
 567                 if( $wgUser->isAnon() ) {
 568                         $wgOut->errorpage( 'uploadnologin', 'uploadnologintext' );
 569                         return;
 570                 }
 571                 if ( ! $this->mTitle->userCanEdit() ) {
 572                         $wgOut->sysopRequired();
 573                         return;
 574                 }
 575                 if ( $wgUser->isBlocked() ) {
 576                         return $this->blockedIPpage();
 577                 }
 578                 if( !$wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 579                         $wgOut->errorpage( 'internalerror', 'sessionfailure' );
 580                         return;
 581                 }
 582                 $name = substr( $oldimage, 15 );
 583
 584                 $dest = wfImageDir( $name );
 585                 $archive = wfImageArchiveDir( $name );
 586                 $curfile = "{$dest}/{$name}";
 587
 588                 if ( ! is_file( $curfile ) ) {
 589                         $wgOut->fileNotFoundError( htmlspecialchars( $curfile ) );
 590                         return;
 591                 }
 592                 $oldver = wfTimestampNow() . "!{$name}";
 593
 594                 $dbr =& wfGetDB( DB_SLAVE );
 595                 $size = $dbr->selectField( 'oldimage', 'oi_size', array( 'oi_archive_name' => $oldimage )  );
 596
 597                 if ( ! rename( $curfile, "${archive}/{$oldver}" ) ) {
 598                         $wgOut->fileRenameError( $curfile, "${archive}/{$oldver}" );
 599                         return;
 600                 }
 601                 if ( ! copy( "{$archive}/{$oldimage}", $curfile ) ) {
 602                         $wgOut->fileCopyError( "${archive}/{$oldimage}", $curfile );
 603                 }
 604
 605                 # Record upload and update metadata cache
 606                 $img = Image::newFromName( $name );
 607                 $img->recordUpload( $oldver, wfMsg( "reverted" ) );
 608
 609                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 610                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 611                 $wgOut->addHTML( wfMsg( 'imagereverted' ) );
 612
 613                 $descTitle = $img->getTitle();
 614                 $wgOut->returnToMain( false, $descTitle->getPrefixedText() );
 615         }
 616
 617         function blockedIPpage() {
 618                 require_once( 'EditPage.php' );
 619                 $edit = new EditPage( $this );
 620                 return $edit->blockedIPpage();
 621         }
 622
 623 }
 624
 625 /**
 626  * @todo document
 627  * @package MediaWiki
 628  */
 629 class ImageHistoryList {
 630         function ImageHistoryList( &$skin ) {
 631                 $this->skin =& $skin;
 632         }
 633
 634         function beginImageHistoryList() {
 635                 $s = "\n<h2 id=\"filehistory\">" . wfMsg( 'imghistory' ) . "</h2>\n" .
 636                   "<p>" . wfMsg( 'imghistlegend' ) . "</p>\n".'<ul class="special">';
 637                 return $s;
 638         }
 639
 640         function endImageHistoryList() {
 641                 $s = "</ul>\n";
 642                 return $s;
 643         }
 644
 645         function imageHistoryLine( $iscur, $timestamp, $img, $user, $usertext, $size, $description ) {
 646                 global $wgUser, $wgLang, $wgContLang, $wgTitle;
 647
 648                 $datetime = $wgLang->timeanddate( $timestamp, true );
 649                 $del = wfMsg( 'deleteimg' );
 650                 $delall = wfMsg( 'deleteimgcompletely' );
 651                 $cur = wfMsg( 'cur' );
 652
 653                 if ( $iscur ) {
 654                         $url = Image::imageUrl( $img );
 655                         $rlink = $cur;
 656                         if ( $wgUser->isAllowed('delete') ) {
 657                                 $link = $wgTitle->escapeLocalURL( 'image=' . $wgTitle->getPartialURL() .
 658                                   '&action=delete' );
 659                                 $style = $this->skin->getInternalLinkAttributes( $link, $delall );
 660
 661                                 $dlink = '<a href="'.$link.'"'.$style.'>'.$delall.'</a>';
 662                         } else {
 663                                 $dlink = $del;
 664                         }
 665                 } else {
 666                         $url = htmlspecialchars( wfImageArchiveUrl( $img ) );
 667                         if( $wgUser->getID() != 0 && $wgTitle->userCanEdit() ) {
 668                                 $token = urlencode( $wgUser->editToken( $img ) );
 669                                 $rlink = $this->skin->makeKnownLinkObj( $wgTitle,
 670                                            wfMsg( 'revertimg' ), 'action=revert&oldimage=' .
 671                                            urlencode( $img ) . "&wpEditToken=$token" );
 672                                 $dlink = $this->skin->makeKnownLinkObj( $wgTitle,
 673                                            $del, 'action=delete&oldimage=' . urlencode( $img ) .
 674                                            "&wpEditToken=$token" );
 675                         } else {
 676                                 # Having live active links for non-logged in users
 677                                 # means that bots and spiders crawling our site can
 678                                 # inadvertently change content. Baaaad idea.
 679                                 $rlink = wfMsg( 'revertimg' );
 680                                 $dlink = $del;
 681                         }
 682                 }
 683                 if ( 0 == $user ) {
 684                         $userlink = $usertext;
 685                 } else {
 686                         $userlink = $this->skin->makeLinkObj(
 687                                 Title::makeTitle( NS_USER, $usertext ),
 688                                 $usertext );
 689                 }
 690                 $nbytes = wfMsg( 'nbytes', $size );
 691                 $style = $this->skin->getInternalLinkAttributes( $url, $datetime );
 692
 693                 $s = "<li> ({$dlink}) ({$rlink}) <a href=\"{$url}\"{$style}>{$datetime}</a>"
 694                   . " . . {$userlink} ({$nbytes})";
 695
 696                 $s .= $this->skin->commentBlock( $description, $wgTitle );
 697                 $s .= "</li>\n";
 698                 return $s;
 699         }
 700
 701 }
 702
 703
 704 ?>