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 | '. wfMsg( 'metadata' )  . "\n";
 107                 foreach( $exif as $k => $v ) {
 108                         $tag = strtolower( $k );
 109                         $msg = wfMsg( "exif-$tag" );
 110
 111                         $r .= "! class=$tag | $msg\n";
 112                         $r .= "| class=$tag | $v\n";
 113                         $r .= "|-\n";
 114                 }
 115                 return substr($r, 0, -3) . '|}';
 116         }
 117
 118         /**
 119          * Overloading Article's getContent method.
 120          * Omit noarticletext if sharedupload
 121          *
 122          * @param $noredir If true, do not follow redirects
 123          */
 124         function getContent( $noredir )
 125         {
 126                 if ( $this->img && $this->img->fromSharedDirectory && 0 == $this->getID() ) {
 127                         return '';
 128                 }
 129                 return Article::getContent( $noredir );
 130         }
 131
 132         function openShowImage()
 133         {
 134                 global $wgOut, $wgUser, $wgImageLimits, $wgRequest,
 135                        $wgUseImageResize, $wgRepositoryBaseUrl,
 136                        $wgUseExternalEditor, $wgServer, $wgFetchCommonsDescriptions;
 137                 $full_url  = $this->img->getURL();
 138                 $anchoropen = '';
 139                 $anchorclose = '';
 140
 141                 if( $wgUser->getOption( 'imagesize' ) == '' ) {
 142                         $sizeSel = User::getDefaultOption( 'imagesize' );
 143                 } else {
 144                         $sizeSel = intval( $wgUser->getOption( 'imagesize' ) );
 145                 }
 146                 if( !isset( $wgImageLimits[$sizeSel] ) ) {
 147                         $sizeSel = User::getDefaultOption( 'imagesize' );
 148                 }
 149                 $max = $wgImageLimits[$sizeSel];
 150                 $maxWidth = $max[0];
 151                 $maxHeight = $max[1];
 152                 $sk = $wgUser->getSkin();
 153
 154                 if ( $this->img->exists() ) {
 155                         # image
 156                         $width = $this->img->getWidth();
 157                         $height = $this->img->getHeight();
 158                         $showLink = false;
 159
 160                         if ( $this->img->allowInlineDisplay() and $width and $height) {
 161                                 # image
 162
 163                                 # "Download high res version" link below the image
 164                                 $msg = wfMsgHtml('showbigimage', $width, $height, intval( $this->img->getSize()/1024 ) );
 165                                 if ( $width > $maxWidth ) {
 166                                         $height = floor( $height * $maxWidth / $width );
 167                                         $width  = $maxWidth;
 168                                 }
 169                                 if ( $height > $maxHeight ) {
 170                                         $width = floor( $width * $maxHeight / $height );
 171                                         $height = $maxHeight;
 172                                 }
 173                                 if ( $width != $this->img->getWidth() || $height != $this->img->getHeight() ) {
 174                                         if( $wgUseImageResize ) {
 175                                                 $thumbnail = $this->img->getThumbnail( $width );
 176                                                 if ( $thumbnail == null ) {
 177                                                         $url = $this->img->getViewURL();
 178                                                 } else {
 179                                                         $url = $thumbnail->getURL();
 180                                                 }
 181                                         } else {
 182                                                 # No resize ability? Show the full image, but scale
 183                                                 # it down in the browser so it fits on the page.
 184                                                 $url = $this->img->getViewURL();
 185                                         }
 186                                         $anchoropen  = "<a href=\"{$full_url}\">";
 187                                         $anchorclose = "</a><br />";
 188                                         if( $this->img->mustRender() ) {
 189                                                 $showLink = true;
 190                                         } else {
 191                                                 $anchorclose .= "\n$anchoropen{$msg}</a>";
 192                                         }
 193                                 } else {
 194                                         $url = $this->img->getViewURL();
 195                                         $showLink = true;
 196                                 }
 197                                 $wgOut->addHTML( '<div class="fullImageLink" id="file">' . $anchoropen .
 198                                      "<img border=\"0\" src=\"{$url}\" width=\"{$width}\" height=\"{$height}\" alt=\"" .
 199                                      htmlspecialchars( $wgRequest->getVal( 'image' ) ).'" />' . $anchorclose . '</div>' );
 200                         } else {
 201                                 #if direct link is allowed but it's not a renderable image, show an icon.
 202                                 if ($this->img->isSafeFile()) {
 203                                         $icon= $this->img->iconThumb();
 204
 205                                         $wgOut->addHTML( '<div class="fullImageLink" id="file"><a href="' . $full_url . '">' .
 206                                         $icon->toHtml() .
 207                                         '</a></div>' );
 208                                 }
 209
 210                                 $showLink = true;
 211                         }
 212
 213
 214                         if ($showLink) {
 215                                 $filename = wfEscapeWikiText( $this->img->getName() );
 216                                 $info = wfMsg( 'fileinfo',
 217                                         ceil($this->img->getSize()/1024.0),
 218                                         $this->img->getMimeType() );
 219
 220                                 if (!$this->img->isSafeFile()) {
 221                                         $warning = wfMsg( 'mediawarning' );
 222                                         $wgOut->addWikiText( <<<END
 223 <div class="fullMedia">
 224 <span class="dangerousLink">[[Media:$filename|$filename]]</span>
 225 <span class="fileInfo"> ($info)</span>
 226 </div>
 227
 228 <div class="mediaWarning">$warning</div>
 229 END
 230                                                 );
 231                                 } else {
 232                                         $wgOut->addWikiText( <<<END
 233 <div class="fullMedia">
 234 [[Media:$filename|$filename]] <span class="fileInfo"> ($info)</span>
 235 </div>
 236 END
 237                                                 );
 238                                 }
 239                         }
 240
 241                         if($this->img->fromSharedDirectory) {
 242                                 $this->printSharedImageText();
 243                         }
 244                 } else {
 245                         # Image does not exist
 246
 247                         $title = Title::makeTitle( NS_SPECIAL, 'Upload' );
 248                         $link = $sk->makeKnownLinkObj($title, wfMsgHtml('noimage-linktext'),
 249                                 'wpDestFile=' . urlencode( $this->img->getName() ) );
 250                         $wgOut->addHTML( wfMsgWikiHtml( 'noimage', $link ) );
 251                 }
 252         }
 253
 254         function printSharedImageText() {
 255                 global $wgRepositoryBaseUrl, $wgFetchCommonsDescriptions, $wgOut, $wgUser;
 256
 257                 $url = $wgRepositoryBaseUrl . urlencode($this->mTitle->getDBkey());
 258                 $sharedtext = "<div class='sharedUploadNotice'>" . wfMsgWikiHtml("sharedupload");
 259                 if ($wgRepositoryBaseUrl && !$wgFetchCommonsDescriptions) {
 260
 261                         $sk = $wgUser->getSkin();
 262                         $title = Title::makeTitle( NS_SPECIAL, 'Upload' );
 263                         $link = $sk->makeKnownLinkObj($title, wfMsgHtml('shareduploadwiki-linktext'),
 264                         array( 'wpDestFile' => urlencode( $this->img->getName() )));
 265                         $sharedtext .= " " . wfMsgWikiHtml('shareduploadwiki', $link);
 266                 }
 267                 $sharedtext .= "</div>";
 268                 $wgOut->addHTML($sharedtext);
 269
 270                 if ($wgRepositoryBaseUrl && $wgFetchCommonsDescriptions) {
 271                         require_once("HttpFunctions.php");
 272                         $ur = ini_set('allow_url_fopen', true);
 273                         $text = wfGetHTTP($url . '?action=render');
 274                         ini_set('allow_url_fopen', $ur);
 275                         if ($text)
 276                                 $this->mExtraDescription = $text;
 277                 }
 278         }
 279
 280         function getUploadUrl() {
 281                 global $wgServer;
 282                 $uploadTitle = Title::makeTitle( NS_SPECIAL, 'Upload' );
 283                 return $wgServer . $uploadTitle->getLocalUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) );
 284         }
 285
 286
 287         function uploadLinksBox()
 288         {
 289                 global $wgUser, $wgOut;
 290
 291                 if ($this->img->fromSharedDirectory)
 292                         return;
 293
 294                 $sk = $wgUser->getSkin();
 295                 $wgOut->addHTML( '<br /><ul>' );
 296                 if( $wgUser->isAllowed( 'reupload' ) ) {
 297                         $wgOut->addWikiText( "<li>\n<div>". wfMsg( 'uploadnewversion', $this->getUploadUrl() ) ."</div>\n</li>\n" );
 298                 }
 299                 $wgOut->addHTML( '<li>' );
 300                 $wgOut->addHTML( $sk->makeKnownLinkObj( $this->mTitle,
 301                         wfMsg( 'edit-externally' ), "action=edit&externaledit=true&mode=file" ) );
 302                 $wgOut->addWikiText( '<div>' .  wfMsg('edit-externally-help') . '</div>' );
 303                 $wgOut->addHTML( '</li></ul>' );
 304         }
 305
 306         function closeShowImage()
 307         {
 308                 # For overloading
 309
 310         }
 311
 312         /**
 313          * If the page we've just displayed is in the "Image" namespace,
 314          * we follow it with an upload history of the image and its usage.
 315          */
 316         function imageHistory()
 317         {
 318                 global $wgUser, $wgOut, $wgUseExternalEditor;
 319
 320                 $sk = $wgUser->getSkin();
 321
 322                 $line = $this->img->nextHistoryLine();
 323
 324                 if ( $line ) {
 325                         $list =& new ImageHistoryList( $sk );
 326                         $s = $list->beginImageHistoryList() .
 327                                 $list->imageHistoryLine( true, wfTimestamp(TS_MW, $line->img_timestamp),
 328                                         $this->mTitle->getDBkey(),  $line->img_user,
 329                                         $line->img_user_text, $line->img_size, $line->img_description,
 330                                         $line->img_width, $line->img_height
 331                                 );
 332
 333                         while ( $line = $this->img->nextHistoryLine() ) {
 334                                 $s .= $list->imageHistoryLine( false, $line->img_timestamp,
 335                                         $line->oi_archive_name, $line->img_user,
 336                                         $line->img_user_text, $line->img_size, $line->img_description,
 337                                         $line->img_width, $line->img_height
 338                                 );
 339                         }
 340                         $s .= $list->endImageHistoryList();
 341                 } else { $s=''; }
 342                 $wgOut->addHTML( $s );
 343
 344                 # Exist check because we don't want to show this on pages where an image
 345                 # doesn't exist along with the noimage message, that would suck. -ævar
 346                 if( $wgUseExternalEditor && $this->img->exists() ) {
 347                         $this->uploadLinksBox();
 348                 }
 349
 350         }
 351
 352         function imageLinks()
 353         {
 354                 global $wgUser, $wgOut;
 355
 356                 $wgOut->addHTML( '<h2 id="filelinks">' . wfMsg( 'imagelinks' ) . "</h2>\n" );
 357
 358                 $dbr =& wfGetDB( DB_SLAVE );
 359                 $page = $dbr->tableName( 'page' );
 360                 $imagelinks = $dbr->tableName( 'imagelinks' );
 361
 362                 $sql = "SELECT page_namespace,page_title FROM $imagelinks,$page WHERE il_to=" .
 363                   $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=page_id";
 364                 $sql = $dbr->limitResult($sql, 500, 0);
 365                 $res = $dbr->query( $sql, "ImagePage::imageLinks" );
 366
 367                 if ( 0 == $dbr->numRows( $res ) ) {
 368                         $wgOut->addHtml( '<p>' . wfMsg( "nolinkstoimage" ) . "</p>\n" );
 369                         return;
 370                 }
 371                 $wgOut->addHTML( '<p>' . wfMsg( 'linkstoimage' ) .  "</p>\n<ul>" );
 372
 373                 $sk = $wgUser->getSkin();
 374                 while ( $s = $dbr->fetchObject( $res ) ) {
 375                         $name = Title::MakeTitle( $s->page_namespace, $s->page_title );
 376                         $link = $sk->makeKnownLinkObj( $name, "" );
 377                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 378                 }
 379                 $wgOut->addHTML( "</ul>\n" );
 380         }
 381
 382         function delete()
 383         {
 384                 global $wgUser, $wgOut, $wgRequest;
 385
 386                 $confirm = $wgRequest->getBool( 'wpConfirmB' );
 387                 $image = $wgRequest->getVal( 'image' );
 388                 $oldimage = $wgRequest->getVal( 'oldimage' );
 389
 390                 # Only sysops can delete images. Previously ordinary users could delete
 391                 # old revisions, but this is no longer the case.
 392                 if ( !$wgUser->isAllowed('delete') ) {
 393                         $wgOut->sysopRequired();
 394                         return;
 395                 }
 396                 if ( $wgUser->isBlocked() ) {
 397                         return $this->blockedIPpage();
 398                 }
 399                 if ( wfReadOnly() ) {
 400                         $wgOut->readOnlyPage();
 401                         return;
 402                 }
 403
 404                 # Better double-check that it hasn't been deleted yet!
 405                 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
 406                 if ( ( !is_null( $image ) )
 407                   && ( '' == trim( $image ) ) ) {
 408                         $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
 409                         return;
 410                 }
 411
 412                 $this->img  = new Image( $this->mTitle );
 413
 414                 # Deleting old images doesn't require confirmation
 415                 if ( !is_null( $oldimage ) || $confirm ) {
 416                         if( $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 417                                 $this->doDelete();
 418                         } else {
 419                                 $wgOut->fatalError( wfMsg( 'sessionfailure' ) );
 420                         }
 421                         return;
 422                 }
 423
 424                 if ( !is_null( $image ) ) {
 425                         $q = '&image=' . urlencode( $image );
 426                 } else if ( !is_null( $oldimage ) ) {
 427                         $q = '&oldimage=' . urlencode( $oldimage );
 428                 } else {
 429                         $q = '';
 430                 }
 431                 return $this->confirmDelete( $q, $wgRequest->getText( 'wpReason' ) );
 432         }
 433
 434         function doDelete()
 435         {
 436                 global $wgOut, $wgUser, $wgContLang, $wgRequest;
 437                 global $wgUseSquid, $wgInternalServer, $wgPostCommitUpdateList;
 438                 $fname = 'ImagePage::doDelete';
 439
 440                 $reason = $wgRequest->getVal( 'wpReason' );
 441                 $oldimage = $wgRequest->getVal( 'oldimage' );
 442
 443                 $dbw =& wfGetDB( DB_MASTER );
 444
 445                 if ( !is_null( $oldimage ) ) {
 446                         if ( strlen( $oldimage ) < 16 ) {
 447                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 448                                 return;
 449                         }
 450                         if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 451                                 $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 452                                 return;
 453                         }
 454
 455                         # Invalidate description page cache
 456                         $this->mTitle->invalidateCache();
 457
 458                         # Squid purging
 459                         if ( $wgUseSquid ) {
 460                                 $urlArr = Array(
 461                                         $wgInternalServer.wfImageArchiveUrl( $oldimage ),
 462                                         $wgInternalServer.$this->mTitle->getFullURL()
 463                                 );
 464                                 wfPurgeSquidServers($urlArr);
 465                         }
 466                         $this->doDeleteOldImage( $oldimage );
 467                         $dbw->delete( 'oldimage', array( 'oi_archive_name' => $oldimage ) );
 468                         $deleted = $oldimage;
 469                 } else {
 470                         $image = $this->mTitle->getDBkey();
 471                         $dest = wfImageDir( $image );
 472                         $archive = wfImageDir( $image );
 473
 474                         # Delete the image file if it exists; due to sync problems
 475                         # or manual trimming sometimes the file will be missing.
 476                         $targetFile = "{$dest}/{$image}";
 477                         if( file_exists( $targetFile ) && ! @unlink( $targetFile ) ) {
 478                                 # If the deletion operation actually failed, bug out:
 479                                 $wgOut->fileDeleteError( $targetFile );
 480                                 return;
 481                         }
 482                         $dbw->delete( 'image', array( 'img_name' => $image ) );
 483                         $res = $dbw->select( 'oldimage', array( 'oi_archive_name' ), array( 'oi_name' => $image ) );
 484
 485                         # Purge archive URLs from the squid
 486                         $urlArr = Array();
 487                         while ( $s = $dbw->fetchObject( $res ) ) {
 488                                 $this->doDeleteOldImage( $s->oi_archive_name );
 489                                 $urlArr[] = $wgInternalServer.wfImageArchiveUrl( $s->oi_archive_name );
 490                         }
 491
 492                         # And also the HTML of all pages using this image
 493                         $linksTo = $this->img->getLinksTo();
 494                         if ( $wgUseSquid ) {
 495                                 $u = SquidUpdate::newFromTitles( $linksTo, $urlArr );
 496                                 array_push( $wgPostCommitUpdateList, $u );
 497                         }
 498
 499                         $dbw->delete( 'oldimage', array( 'oi_name' => $image ) );
 500
 501                         # Image itself is now gone, and database is cleaned.
 502                         # Now we remove the image description page.
 503
 504                         $article = new Article( $this->mTitle );
 505                         $article->doDeleteArticle( $reason ); # ignore errors
 506
 507                         # Invalidate parser cache and client cache for pages using this image
 508                         # This is left until relatively late to reduce lock time
 509                         Title::touchArray( $linksTo );
 510
 511                         /* Delete thumbnails and refresh image metadata cache */
 512                         $this->img->purgeCache();
 513
 514
 515                         $deleted = $image;
 516                 }
 517
 518                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 519                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 520
 521                 $loglink = '[[Special:Log/delete|' . wfMsg( 'deletionlog' ) . ']]';
 522                 $text = wfMsg( 'deletedtext', $deleted, $loglink );
 523
 524                 $wgOut->addWikiText( $text );
 525
 526                 $wgOut->returnToMain( false, $this->mTitle->getPrefixedText() );
 527         }
 528
 529         function doDeleteOldImage( $oldimage )
 530         {
 531                 global $wgOut;
 532
 533                 $name = substr( $oldimage, 15 );
 534                 $archive = wfImageArchiveDir( $name );
 535
 536                 # Delete the image if it exists. Sometimes the file will be missing
 537                 # due to manual intervention or weird sync problems; treat that
 538                 # condition gracefully and continue to delete the database entry.
 539                 # Also some records may end up with an empty oi_archive_name field
 540                 # if the original file was missing when a new upload was made;
 541                 # don't try to delete the directory then!
 542                 #
 543                 $targetFile = "{$archive}/{$oldimage}";
 544                 if( $oldimage != '' && file_exists( $targetFile ) && !@unlink( $targetFile ) ) {
 545                         # If we actually have a file and can't delete it, throw an error.
 546                         $wgOut->fileDeleteError( "{$archive}/{$oldimage}" );
 547                 } else {
 548                         # Log the deletion
 549                         $log = new LogPage( 'delete' );
 550                         $log->addEntry( 'delete', $this->mTitle, wfMsg('deletedrevision',$oldimage) );
 551                 }
 552         }
 553
 554         function revert()
 555         {
 556                 global $wgOut, $wgRequest, $wgUser;
 557                 global $wgUseSquid, $wgInternalServer, $wgDeferredUpdateList;
 558
 559                 $oldimage = $wgRequest->getText( 'oldimage' );
 560                 if ( strlen( $oldimage ) < 16 ) {
 561                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 562                         return;
 563                 }
 564                 if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 565                         $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 566                         return;
 567                 }
 568
 569                 if ( wfReadOnly() ) {
 570                         $wgOut->readOnlyPage();
 571                         return;
 572                 }
 573                 if( $wgUser->isAnon() ) {
 574                         $wgOut->errorpage( 'uploadnologin', 'uploadnologintext' );
 575                         return;
 576                 }
 577                 if ( ! $this->mTitle->userCanEdit() ) {
 578                         $wgOut->sysopRequired();
 579                         return;
 580                 }
 581                 if ( $wgUser->isBlocked() ) {
 582                         return $this->blockedIPpage();
 583                 }
 584                 if( !$wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 585                         $wgOut->errorpage( 'internalerror', 'sessionfailure' );
 586                         return;
 587                 }
 588                 $name = substr( $oldimage, 15 );
 589
 590                 $dest = wfImageDir( $name );
 591                 $archive = wfImageArchiveDir( $name );
 592                 $curfile = "{$dest}/{$name}";
 593
 594                 if ( ! is_file( $curfile ) ) {
 595                         $wgOut->fileNotFoundError( htmlspecialchars( $curfile ) );
 596                         return;
 597                 }
 598                 $oldver = wfTimestampNow() . "!{$name}";
 599
 600                 $dbr =& wfGetDB( DB_SLAVE );
 601                 $size = $dbr->selectField( 'oldimage', 'oi_size', array( 'oi_archive_name' => $oldimage )  );
 602
 603                 if ( ! rename( $curfile, "${archive}/{$oldver}" ) ) {
 604                         $wgOut->fileRenameError( $curfile, "${archive}/{$oldver}" );
 605                         return;
 606                 }
 607                 if ( ! copy( "{$archive}/{$oldimage}", $curfile ) ) {
 608                         $wgOut->fileCopyError( "${archive}/{$oldimage}", $curfile );
 609                 }
 610
 611                 # Record upload and update metadata cache
 612                 $img = Image::newFromName( $name );
 613                 $img->recordUpload( $oldver, wfMsg( "reverted" ) );
 614
 615                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 616                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 617                 $wgOut->addHTML( wfMsg( 'imagereverted' ) );
 618
 619                 $descTitle = $img->getTitle();
 620                 $wgOut->returnToMain( false, $descTitle->getPrefixedText() );
 621         }
 622
 623         function blockedIPpage() {
 624                 require_once( 'EditPage.php' );
 625                 $edit = new EditPage( $this );
 626                 return $edit->blockedIPpage();
 627         }
 628
 629 }
 630
 631 /**
 632  * @todo document
 633  * @package MediaWiki
 634  */
 635 class ImageHistoryList {
 636         function ImageHistoryList( &$skin ) {
 637                 $this->skin =& $skin;
 638         }
 639
 640         function beginImageHistoryList() {
 641                 $s = "\n<h2 id=\"filehistory\">" . wfMsg( 'imghistory' ) . "</h2>\n" .
 642                   "<p>" . wfMsg( 'imghistlegend' ) . "</p>\n".'<ul class="special">';
 643                 return $s;
 644         }
 645
 646         function endImageHistoryList() {
 647                 $s = "</ul>\n";
 648                 return $s;
 649         }
 650
 651         function imageHistoryLine( $iscur, $timestamp, $img, $user, $usertext, $size, $description, $width, $height ) {
 652                 global $wgUser, $wgLang, $wgContLang, $wgTitle;
 653
 654                 $datetime = $wgLang->timeanddate( $timestamp, true );
 655                 $del = wfMsg( 'deleteimg' );
 656                 $delall = wfMsg( 'deleteimgcompletely' );
 657                 $cur = wfMsg( 'cur' );
 658
 659                 if ( $iscur ) {
 660                         $url = Image::imageUrl( $img );
 661                         $rlink = $cur;
 662                         if ( $wgUser->isAllowed('delete') ) {
 663                                 $link = $wgTitle->escapeLocalURL( 'image=' . $wgTitle->getPartialURL() .
 664                                   '&action=delete' );
 665                                 $style = $this->skin->getInternalLinkAttributes( $link, $delall );
 666
 667                                 $dlink = '<a href="'.$link.'"'.$style.'>'.$delall.'</a>';
 668                         } else {
 669                                 $dlink = $del;
 670                         }
 671                 } else {
 672                         $url = htmlspecialchars( wfImageArchiveUrl( $img ) );
 673                         if( $wgUser->getID() != 0 && $wgTitle->userCanEdit() ) {
 674                                 $token = urlencode( $wgUser->editToken( $img ) );
 675                                 $rlink = $this->skin->makeKnownLinkObj( $wgTitle,
 676                                            wfMsg( 'revertimg' ), 'action=revert&oldimage=' .
 677                                            urlencode( $img ) . "&wpEditToken=$token" );
 678                                 $dlink = $this->skin->makeKnownLinkObj( $wgTitle,
 679                                            $del, 'action=delete&oldimage=' . urlencode( $img ) .
 680                                            "&wpEditToken=$token" );
 681                         } else {
 682                                 # Having live active links for non-logged in users
 683                                 # means that bots and spiders crawling our site can
 684                                 # inadvertently change content. Baaaad idea.
 685                                 $rlink = wfMsg( 'revertimg' );
 686                                 $dlink = $del;
 687                         }
 688                 }
 689                 if ( 0 == $user ) {
 690                         $userlink = $usertext;
 691                 } else {
 692                         $userlink = $this->skin->makeLinkObj(
 693                                 Title::makeTitle( NS_USER, $usertext ),
 694                                 $usertext );
 695                 }
 696                 $nbytes = wfMsg( 'nbytes', $size );
 697                 $widthheight = wfMsg( 'widthheight', $width, $height );
 698                 $style = $this->skin->getInternalLinkAttributes( $url, $datetime );
 699
 700                 $s = "<li> ({$dlink}) ({$rlink}) <a href=\"{$url}\"{$style}>{$datetime}</a> . . {$userlink} . . {$widthheight} ({$nbytes})";
 701
 702                 $s .= $this->skin->commentBlock( $description, $wgTitle );
 703                 $s .= "</li>\n";
 704                 return $s;
 705         }
 706
 707 }
 708
 709
 710 ?>