includes/ImagePage.php

   1 <?php
   2 /**
   3  * @package MediaWiki
   4  */
   5
   6 /**
   7  *
   8  */
   9 if( !defined( 'MEDIAWIKI' ) )
  10         die( 1 );
  11
  12 /**
  13  * Special handling for image description pages
  14  * @package MediaWiki
  15  */
  16 class ImagePage extends Article {
  17
  18         /* private */ var $img;  // Image object this page is shown for
  19         var $mExtraDescription = false;
  20
  21         /**
  22          * Handler for action=render
  23          * Include body text only; none of the image extras
  24          */
  25         function render() {
  26                 global $wgOut;
  27                 $wgOut->setArticleBodyOnly( true );
  28                 $wgOut->addSecondaryWikitext( $this->getContent() );
  29         }
  30
  31         function view() {
  32                 global $wgOut, $wgShowEXIF, $wgRequest, $wgUser;
  33
  34                 $this->img = new Image( $this->mTitle );
  35
  36                 $diff = $wgRequest->getVal( 'diff' );
  37                 $diffOnly = $wgRequest->getBool( 'diffonly', $wgUser->getOption( 'diffonly' ) );
  38
  39                 if ( $this->mTitle->getNamespace() != NS_IMAGE || ( isset( $diff ) && $diffOnly ) )
  40                         return Article::view();
  41
  42                 if ($wgShowEXIF && $this->img->exists()) {
  43                         $exif = $this->img->getExifData();
  44                         $showmeta = count($exif) ? true : false;
  45                 } else {
  46                         $exif = false;
  47                         $showmeta = false;
  48                 }
  49
  50                 if ($this->img->exists())
  51                         $wgOut->addHTML($this->showTOC($showmeta));
  52
  53                 $this->openShowImage();
  54
  55                 # No need to display noarticletext, we use our own message, output in openShowImage()
  56                 if ( $this->getID() ) {
  57                         Article::view();
  58                 } else {
  59                         # Just need to set the right headers
  60                         $wgOut->setArticleFlag( true );
  61                         $wgOut->setRobotpolicy( 'index,follow' );
  62                         $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
  63                         $this->viewUpdates();
  64                 }
  65
  66                 # Show shared description, if needed
  67                 if ( $this->mExtraDescription ) {
  68                         $fol = wfMsg( 'shareddescriptionfollows' );
  69                         if( $fol != '-' ) {
  70                                 $wgOut->addWikiText( $fol );
  71                         }
  72                         $wgOut->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . '</div>' );
  73                 }
  74
  75                 $this->closeShowImage();
  76                 $this->imageHistory();
  77                 $this->imageLinks();
  78
  79                 if ( $exif ) {
  80                         global $wgStylePath, $wgStyleVersion;
  81                         $expand = htmlspecialchars( wfEscapeJsString( wfMsg( 'metadata-expand' ) ) );
  82                         $collapse = htmlspecialchars( wfEscapeJsString( wfMsg( 'metadata-collapse' ) ) );
  83                         $wgOut->addHTML( Xml::element( 'h2', array( 'id' => 'metadata' ), wfMsg( 'metadata' ) ). "\n" );
  84                         $wgOut->addWikiText( $this->makeMetadataTable( $exif ) );
  85                         $wgOut->addHTML(
  86                                 "<script type=\"text/javascript\" src=\"$wgStylePath/common/metadata.js?$wgStyleVersion\"></script>\n" .
  87                                 "<script type=\"text/javascript\">attachMetadataToggle('mw_metadata', '$expand', '$collapse');</script>\n" );
  88                 }
  89         }
  90
  91         /**
  92          * Create the TOC
  93          *
  94          * @access private
  95          *
  96          * @param bool $metadata Whether or not to show the metadata link
  97          * @return string
  98          */
  99         function showTOC( $metadata ) {
 100                 global $wgLang;
 101                 $r = '<ul id="filetoc">
 102                         <li><a href="#file">' . $wgLang->getNsText( NS_IMAGE ) . '</a></li>
 103                         <li><a href="#filehistory">' . wfMsgHtml( 'imghistory' ) . '</a></li>
 104                         <li><a href="#filelinks">' . wfMsgHtml( 'imagelinks' ) . '</a></li>' .
 105                         ($metadata ? '<li><a href="#metadata">' . wfMsgHtml( 'metadata' ) . '</a></li>' : '') . '
 106                 </ul>';
 107                 return $r;
 108         }
 109
 110         /**
 111          * Make a table with metadata to be shown in the output page.
 112          *
 113          * @access private
 114          *
 115          * @param array $exif The array containing the EXIF data
 116          * @return string
 117          */
 118         function makeMetadataTable( $exif ) {
 119                 $r = wfMsg( 'metadata-help' ) . "\n\n";
 120                 $r .= "{| id=mw_metadata class=mw_metadata\n";
 121                 $visibleFields = $this->visibleMetadataFields();
 122                 foreach( $exif as $k => $v ) {
 123                         $tag = strtolower( $k );
 124                         $msg = wfMsg( "exif-$tag" );
 125                         $class = "exif-$tag";
 126                         if( !in_array( $tag, $visibleFields ) ) {
 127                                 $class .= ' collapsable';
 128                         }
 129                         $r .= "|- class=\"$class\"\n";
 130                         $r .= "!| $msg\n";
 131                         $r .= "|| $v\n";
 132                 }
 133                 $r .= '|}';
 134                 return $r;
 135         }
 136
 137         /**
 138          * Get a list of EXIF metadata items which should be displayed when
 139          * the metadata table is collapsed.
 140          *
 141          * @return array of strings
 142          * @access private
 143          */
 144         function visibleMetadataFields() {
 145                 $fields = array();
 146                 $lines = explode( "\n", wfMsgForContent( 'metadata-fields' ) );
 147                 foreach( $lines as $line ) {
 148                         $matches = array();
 149                         if( preg_match( '/^\\*\s*(.*?)\s*$/', $line, $matches ) ) {
 150                                 $fields[] = $matches[1];
 151                         }
 152                 }
 153                 return $fields;
 154         }
 155
 156         /**
 157          * Overloading Article's getContent method.
 158          *
 159          * Omit noarticletext if sharedupload; text will be fetched from the
 160          * shared upload server if possible.
 161          */
 162         function getContent() {
 163                 if( $this->img && $this->img->fromSharedDirectory && 0 == $this->getID() ) {
 164                         return '';
 165                 }
 166                 return Article::getContent();
 167         }
 168
 169         function openShowImage() {
 170                 global $wgOut, $wgUser, $wgImageLimits, $wgRequest, $wgLang;
 171                 global $wgUseImageResize, $wgGenerateThumbnailOnParse;
 172
 173                 $full_url  = $this->img->getURL();
 174                 $anchoropen = '';
 175                 $anchorclose = '';
 176                 $sizeSel = intval( $wgUser->getOption( 'imagesize') );
 177
 178                 if( !isset( $wgImageLimits[$sizeSel] ) ) {
 179                         $sizeSel = User::getDefaultOption( 'imagesize' );
 180                 }
 181                 $max = $wgImageLimits[$sizeSel];
 182                 $maxWidth = $max[0];
 183                 $maxHeight = $max[1];
 184                 $sk = $wgUser->getSkin();
 185
 186                 if ( $this->img->exists() ) {
 187                         # image
 188                         $page = $wgRequest->getIntOrNull( 'page' );
 189                         if ( ! is_null( $page ) ) {
 190                                 $this->img->selectPage( $page );
 191                         } else {
 192                                 $page = 1;
 193                         }
 194                         $width = $this->img->getWidth();
 195                         $height = $this->img->getHeight();
 196                         $showLink = false;
 197
 198                         if ( $this->img->allowInlineDisplay() and $width and $height) {
 199                                 # image
 200
 201                                 # "Download high res version" link below the image
 202                                 $msg = wfMsgHtml('showbigimage', $width, $height, intval( $this->img->getSize()/1024 ) );
 203
 204                                 # We'll show a thumbnail of this image
 205                                 if ( $width > $maxWidth || $height > $maxHeight ) {
 206                                         # Calculate the thumbnail size.
 207                                         # First case, the limiting factor is the width, not the height.
 208                                         if ( $width / $height >= $maxWidth / $maxHeight ) {
 209                                                 $height = round( $height * $maxWidth / $width);
 210                                                 $width = $maxWidth;
 211                                                 # Note that $height <= $maxHeight now.
 212                                         } else {
 213                                                 $newwidth = floor( $width * $maxHeight / $height);
 214                                                 $height = round( $height * $newwidth / $width );
 215                                                 $width = $newwidth;
 216                                                 # Note that $height <= $maxHeight now, but might not be identical
 217                                                 # because of rounding.
 218                                         }
 219
 220                                         if( $wgUseImageResize ) {
 221                                                 $thumbnail = $this->img->getThumbnail( $width, -1, $wgGenerateThumbnailOnParse );
 222                                                 if ( $thumbnail == null ) {
 223                                                         $url = $this->img->getViewURL();
 224                                                 } else {
 225                                                         $url = $thumbnail->getURL();
 226                                                 }
 227                                         } else {
 228                                                 # No resize ability? Show the full image, but scale
 229                                                 # it down in the browser so it fits on the page.
 230                                                 $url = $this->img->getViewURL();
 231                                         }
 232                                         $anchoropen  = "<a href=\"{$full_url}\">";
 233                                         $anchorclose = "</a><br />";
 234                                         if( $this->img->mustRender() ) {
 235                                                 $showLink = true;
 236                                         } else {
 237                                                 $anchorclose .= "\n$anchoropen{$msg}</a>";
 238                                         }
 239                                 } else {
 240                                         $url = $this->img->getViewURL();
 241                                         $showLink = true;
 242                                 }
 243
 244                                 if ( $this->img->isMultipage() ) {
 245                                         $wgOut->addHTML( '<table class="multipageimage"><tr><td>' );
 246                                 }
 247
 248                                 $wgOut->addHTML( '<div class="fullImageLink" id="file">' . $anchoropen .
 249                                      "<img border=\"0\" src=\"{$url}\" width=\"{$width}\" height=\"{$height}\" alt=\"" .
 250                                      htmlspecialchars( $this->img->getTitle()->getPrefixedText() ).'" />' . $anchorclose . '</div>' );
 251
 252                                 if ( $this->img->isMultipage() ) {
 253                                         $count = $this->img->pageCount();
 254
 255                                         if ( $page > 1 ) {
 256                                                 $label = $wgOut->parse( wfMsg( 'imgmultipageprev' ), false );
 257                                                 $link = $sk->makeLinkObj( $this->mTitle, $label, 'page='. ($page-1) );
 258                                                 $this->img->selectPage( $page - 1 );
 259                                                 $thumb1 = $sk->makeThumbLinkObj( $this->img, $link, $label, 'none' );
 260                                         } else {
 261                                                 $thumb1 = '';
 262                                         }
 263
 264                                         if ( $page < $count ) {
 265                                                 $label = wfMsg( 'imgmultipagenext' );
 266                                                 $this->img->selectPage( $page + 1 );
 267                                                 $link = $sk->makeLinkObj( $this->mTitle, $label, 'page='. ($page+1) );
 268                                                 $thumb2 = $sk->makeThumbLinkObj( $this->img, $link, $label, 'none' );
 269                                         } else {
 270                                                 $thumb2 = '';
 271                                         }
 272
 273                                         $select = '<form name="pageselector" action="' . $this->img->getEscapeLocalUrl( '' ) . '" method="GET" onchange="document.pageselector.submit();">' ;
 274                                         $select .= $wgOut->parse( wfMsg( 'imgmultigotopre' ), false ) .
 275                                                 ' <select id="pageselector" name="page">';
 276                                         for ( $i=1; $i <= $count; $i++ ) {
 277                                                 $select .= Xml::option( $wgLang->formatNum( $i ), $i,
 278                                                         $i == $page );
 279                                         }
 280                                         $select .= '</select>' . $wgOut->parse( wfMsg( 'imgmultigotopost' ), false ) .
 281                                                 '<input type="submit" value="' .
 282                                                 htmlspecialchars( wfMsg( 'imgmultigo' ) ) . '"></form>';
 283
 284                                         $wgOut->addHTML( '</td><td><div class="multipageimagenavbox">' .
 285                                            "$select<hr />$thumb1\n$thumb2<br clear=\"all\" /></div></td></tr></table>" );
 286                                 }
 287                         } else {
 288                                 #if direct link is allowed but it's not a renderable image, show an icon.
 289                                 if ($this->img->isSafeFile()) {
 290                                         $icon= $this->img->iconThumb();
 291
 292                                         $wgOut->addHTML( '<div class="fullImageLink" id="file"><a href="' . $full_url . '">' .
 293                                         $icon->toHtml() .
 294                                         '</a></div>' );
 295                                 }
 296
 297                                 $showLink = true;
 298                         }
 299
 300
 301                         if ($showLink) {
 302                                 $filename = wfEscapeWikiText( $this->img->getName() );
 303                                 // Hacky workaround: for some reason we use the incorrect MIME type
 304                                 // image/svg for SVG.  This should be fixed internally, but at least
 305                                 // make the displayed type right.
 306                                 $mime = $this->img->getMimeType();
 307                                 if ($mime == 'image/svg') $mime = 'image/svg+xml';
 308
 309                                 $info = wfMsg( 'fileinfo',
 310                                         ceil($this->img->getSize()/1024.0),
 311                                         $mime );
 312
 313                                 global $wgContLang;
 314                                 $dirmark = $wgContLang->getDirMark();
 315                                 if (!$this->img->isSafeFile()) {
 316                                         $warning = wfMsg( 'mediawarning' );
 317                                         $wgOut->addWikiText( <<<END
 318 <div class="fullMedia">
 319 <span class="dangerousLink">[[Media:$filename|$filename]]</span>$dirmark
 320 <span class="fileInfo"> ($info)</span>
 321 </div>
 322
 323 <div class="mediaWarning">$warning</div>
 324 END
 325                                                 );
 326                                 } else {
 327                                         $wgOut->addWikiText( <<<END
 328 <div class="fullMedia">
 329 [[Media:$filename|$filename]]$dirmark <span class="fileInfo"> ($info)</span>
 330 </div>
 331 END
 332                                                 );
 333                                 }
 334                         }
 335
 336                         if($this->img->fromSharedDirectory) {
 337                                 $this->printSharedImageText();
 338                         }
 339                 } else {
 340                         # Image does not exist
 341
 342                         $title = SpecialPage::getTitleFor( 'Upload' );
 343                         $link = $sk->makeKnownLinkObj($title, wfMsgHtml('noimage-linktext'),
 344                                 'wpDestFile=' . urlencode( $this->img->getName() ) );
 345                         $wgOut->addHTML( wfMsgWikiHtml( 'noimage', $link ) );
 346                 }
 347         }
 348
 349         function printSharedImageText() {
 350                 global $wgRepositoryBaseUrl, $wgFetchCommonsDescriptions, $wgOut, $wgUser;
 351
 352                 $url = $wgRepositoryBaseUrl . urlencode($this->mTitle->getDBkey());
 353                 $sharedtext = "<div class='sharedUploadNotice'>" . wfMsgWikiHtml("sharedupload");
 354                 if ($wgRepositoryBaseUrl && !$wgFetchCommonsDescriptions) {
 355
 356                         $sk = $wgUser->getSkin();
 357                         $title = SpecialPage::getTitleFor( 'Upload' );
 358                         $link = $sk->makeKnownLinkObj($title, wfMsgHtml('shareduploadwiki-linktext'),
 359                         array( 'wpDestFile' => urlencode( $this->img->getName() )));
 360                         $sharedtext .= " " . wfMsgWikiHtml('shareduploadwiki', $link);
 361                 }
 362                 $sharedtext .= "</div>";
 363                 $wgOut->addHTML($sharedtext);
 364
 365                 if ($wgRepositoryBaseUrl && $wgFetchCommonsDescriptions) {
 366                         $text = Http::get($url . '?action=render');
 367                         if ($text)
 368                                 $this->mExtraDescription = $text;
 369                 }
 370         }
 371
 372         function getUploadUrl() {
 373                 global $wgServer;
 374                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 375                 return $wgServer . $uploadTitle->getLocalUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) );
 376         }
 377
 378         /**
 379          * Print out the various links at the bottom of the image page, e.g. reupload,
 380          * external editing (and instructions link) etc.
 381          */
 382         function uploadLinksBox() {
 383                 global $wgUser, $wgOut;
 384
 385                 if( $this->img->fromSharedDirectory )
 386                         return;
 387
 388                 $sk = $wgUser->getSkin();
 389
 390                 $wgOut->addHtml( '<br /><ul>' );
 391
 392                 # "Upload a new version of this file" link
 393                 if( $wgUser->isAllowed( 'reupload' ) ) {
 394                         $ulink = $sk->makeExternalLink( $this->getUploadUrl(), wfMsg( 'uploadnewversion-linktext' ) );
 395                         $wgOut->addHtml( "<li><div>{$ulink}</div></li>" );
 396                 }
 397
 398                 # External editing link
 399                 $elink = $sk->makeKnownLinkObj( $this->mTitle, wfMsgHtml( 'edit-externally' ), 'action=edit&externaledit=true&mode=file' );
 400                 $wgOut->addHtml( '<li>' . $elink . '<div>' . wfMsgWikiHtml( 'edit-externally-help' ) . '</div></li>' );
 401
 402                 $wgOut->addHtml( '</ul>' );
 403         }
 404
 405         function closeShowImage()
 406         {
 407                 # For overloading
 408
 409         }
 410
 411         /**
 412          * If the page we've just displayed is in the "Image" namespace,
 413          * we follow it with an upload history of the image and its usage.
 414          */
 415         function imageHistory()
 416         {
 417                 global $wgUser, $wgOut, $wgUseExternalEditor;
 418
 419                 $sk = $wgUser->getSkin();
 420
 421                 $line = $this->img->nextHistoryLine();
 422
 423                 if ( $line ) {
 424                         $list = new ImageHistoryList( $sk );
 425                         $s = $list->beginImageHistoryList() .
 426                                 $list->imageHistoryLine( true, wfTimestamp(TS_MW, $line->img_timestamp),
 427                                         $this->mTitle->getDBkey(),  $line->img_user,
 428                                         $line->img_user_text, $line->img_size, $line->img_description,
 429                                         $line->img_width, $line->img_height
 430                                 );
 431
 432                         while ( $line = $this->img->nextHistoryLine() ) {
 433                                 $s .= $list->imageHistoryLine( false, $line->img_timestamp,
 434                                         $line->oi_archive_name, $line->img_user,
 435                                         $line->img_user_text, $line->img_size, $line->img_description,
 436                                         $line->img_width, $line->img_height
 437                                 );
 438                         }
 439                         $s .= $list->endImageHistoryList();
 440                 } else { $s=''; }
 441                 $wgOut->addHTML( $s );
 442
 443                 # Exist check because we don't want to show this on pages where an image
 444                 # doesn't exist along with the noimage message, that would suck. -ævar
 445                 if( $wgUseExternalEditor && $this->img->exists() ) {
 446                         $this->uploadLinksBox();
 447                 }
 448
 449         }
 450
 451         function imageLinks()
 452         {
 453                 global $wgUser, $wgOut;
 454
 455                 $wgOut->addHTML( Xml::element( 'h2', array( 'id' => 'filelinks' ), wfMsg( 'imagelinks' ) ) . "\n" );
 456
 457                 $dbr =& wfGetDB( DB_SLAVE );
 458                 $page = $dbr->tableName( 'page' );
 459                 $imagelinks = $dbr->tableName( 'imagelinks' );
 460
 461                 $sql = "SELECT page_namespace,page_title FROM $imagelinks,$page WHERE il_to=" .
 462                   $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=page_id";
 463                 $sql = $dbr->limitResult($sql, 500, 0);
 464                 $res = $dbr->query( $sql, "ImagePage::imageLinks" );
 465
 466                 if ( 0 == $dbr->numRows( $res ) ) {
 467                         $wgOut->addHtml( '<p>' . wfMsg( "nolinkstoimage" ) . "</p>\n" );
 468                         return;
 469                 }
 470                 $wgOut->addHTML( '<p>' . wfMsg( 'linkstoimage' ) .  "</p>\n<ul>" );
 471
 472                 $sk = $wgUser->getSkin();
 473                 while ( $s = $dbr->fetchObject( $res ) ) {
 474                         $name = Title::MakeTitle( $s->page_namespace, $s->page_title );
 475                         $link = $sk->makeKnownLinkObj( $name, "" );
 476                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 477                 }
 478                 $wgOut->addHTML( "</ul>\n" );
 479         }
 480
 481         function delete()
 482         {
 483                 global $wgUser, $wgOut, $wgRequest;
 484
 485                 $confirm = $wgRequest->wasPosted();
 486                 $reason = $wgRequest->getVal( 'wpReason' );
 487                 $image = $wgRequest->getVal( 'image' );
 488                 $oldimage = $wgRequest->getVal( 'oldimage' );
 489
 490                 # Only sysops can delete images. Previously ordinary users could delete
 491                 # old revisions, but this is no longer the case.
 492                 if ( !$wgUser->isAllowed('delete') ) {
 493                         $wgOut->permissionRequired( 'delete' );
 494                         return;
 495                 }
 496                 if ( $wgUser->isBlocked() ) {
 497                         return $this->blockedIPpage();
 498                 }
 499                 if ( wfReadOnly() ) {
 500                         $wgOut->readOnlyPage();
 501                         return;
 502                 }
 503
 504                 # Better double-check that it hasn't been deleted yet!
 505                 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
 506                 if ( ( !is_null( $image ) )
 507                   && ( '' == trim( $image ) ) ) {
 508                         $wgOut->showFatalError( wfMsg( 'cannotdelete' ) );
 509                         return;
 510                 }
 511
 512                 $this->img  = new Image( $this->mTitle );
 513
 514                 # Deleting old images doesn't require confirmation
 515                 if ( !is_null( $oldimage ) || $confirm ) {
 516                         if( $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 517                                 $this->doDelete( $reason );
 518                         } else {
 519                                 $wgOut->showFatalError( wfMsg( 'sessionfailure' ) );
 520                         }
 521                         return;
 522                 }
 523
 524                 if ( !is_null( $image ) ) {
 525                         $q = '&image=' . urlencode( $image );
 526                 } else if ( !is_null( $oldimage ) ) {
 527                         $q = '&oldimage=' . urlencode( $oldimage );
 528                 } else {
 529                         $q = '';
 530                 }
 531                 return $this->confirmDelete( $q, $wgRequest->getText( 'wpReason' ) );
 532         }
 533
 534         /*
 535          * Delete an image.
 536          * @param $reason User provided reason for deletion.
 537          */
 538         function doDelete( $reason ) {
 539                 global $wgOut, $wgRequest;
 540
 541                 $oldimage = $wgRequest->getVal( 'oldimage' );
 542
 543                 if ( !is_null( $oldimage ) ) {
 544                         if ( strlen( $oldimage ) < 16 ) {
 545                                 $wgOut->showUnexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 546                                 return;
 547                         }
 548                         if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 549                                 $wgOut->showUnexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 550                                 return;
 551                         }
 552                         if ( !$this->doDeleteOldImage( $oldimage ) ) {
 553                                 return;
 554                         }
 555                         $deleted = $oldimage;
 556                 } else {
 557                         $ok = $this->img->delete( $reason );
 558                         if( !$ok ) {
 559                                 # If the deletion operation actually failed, bug out:
 560                                 $wgOut->showFileDeleteError( $this->img->getName() );
 561                                 return;
 562                         }
 563
 564                         # Image itself is now gone, and database is cleaned.
 565                         # Now we remove the image description page.
 566
 567                         $article = new Article( $this->mTitle );
 568                         $article->doDeleteArticle( $reason ); # ignore errors
 569
 570                         $deleted = $this->img->getName();
 571                 }
 572
 573                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 574                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 575
 576                 $loglink = '[[Special:Log/delete|' . wfMsg( 'deletionlog' ) . ']]';
 577                 $text = wfMsg( 'deletedtext', $deleted, $loglink );
 578
 579                 $wgOut->addWikiText( $text );
 580
 581                 $wgOut->returnToMain( false, $this->mTitle->getPrefixedText() );
 582         }
 583
 584         /**
 585          * @return success
 586          */
 587         function doDeleteOldImage( $oldimage )
 588         {
 589                 global $wgOut;
 590
 591                 $ok = $this->img->deleteOld( $oldimage, '' );
 592                 if( !$ok ) {
 593                         # If we actually have a file and can't delete it, throw an error.
 594                         # Something went awry...
 595                         $wgOut->showFileDeleteError( "$oldimage" );
 596                 } else {
 597                         # Log the deletion
 598                         $log = new LogPage( 'delete' );
 599                         $log->addEntry( 'delete', $this->mTitle, wfMsg('deletedrevision',$oldimage) );
 600                 }
 601                 return $ok;
 602         }
 603
 604         function revert() {
 605                 global $wgOut, $wgRequest, $wgUser;
 606
 607                 $oldimage = $wgRequest->getText( 'oldimage' );
 608                 if ( strlen( $oldimage ) < 16 ) {
 609                         $wgOut->showUnexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 610                         return;
 611                 }
 612                 if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 613                         $wgOut->showUnexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 614                         return;
 615                 }
 616
 617                 if ( wfReadOnly() ) {
 618                         $wgOut->readOnlyPage();
 619                         return;
 620                 }
 621                 if( $wgUser->isAnon() ) {
 622                         $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
 623                         return;
 624                 }
 625                 if ( ! $this->mTitle->userCanEdit() ) {
 626                         $wgOut->readOnlyPage( $this->getContent(), true );
 627                         return;
 628                 }
 629                 if ( $wgUser->isBlocked() ) {
 630                         return $this->blockedIPpage();
 631                 }
 632                 if( !$wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 633                         $wgOut->showErrorPage( 'internalerror', 'sessionfailure' );
 634                         return;
 635                 }
 636                 $name = substr( $oldimage, 15 );
 637
 638                 $dest = wfImageDir( $name );
 639                 $archive = wfImageArchiveDir( $name );
 640                 $curfile = "{$dest}/{$name}";
 641
 642                 if ( !is_dir( $dest ) ) wfMkdirParents( $dest );
 643                 if ( !is_dir( $archive ) ) wfMkdirParents( $archive );
 644
 645                 if ( ! is_file( $curfile ) ) {
 646                         $wgOut->showFileNotFoundError( htmlspecialchars( $curfile ) );
 647                         return;
 648                 }
 649                 $oldver = wfTimestampNow() . "!{$name}";
 650
 651                 if ( ! rename( $curfile, "${archive}/{$oldver}" ) ) {
 652                         $wgOut->showFileRenameError( $curfile, "${archive}/{$oldver}" );
 653                         return;
 654                 }
 655                 if ( ! copy( "{$archive}/{$oldimage}", $curfile ) ) {
 656                         $wgOut->showFileCopyError( "${archive}/{$oldimage}", $curfile );
 657                         return;
 658                 }
 659
 660                 # Record upload and update metadata cache
 661                 $img = Image::newFromName( $name );
 662                 $img->recordUpload( $oldver, wfMsg( "reverted" ) );
 663
 664                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 665                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 666                 $wgOut->addHTML( wfMsg( 'imagereverted' ) );
 667
 668                 $descTitle = $img->getTitle();
 669                 $wgOut->returnToMain( false, $descTitle->getPrefixedText() );
 670         }
 671
 672         function blockedIPpage() {
 673                 $edit = new EditPage( $this );
 674                 return $edit->blockedIPpage();
 675         }
 676
 677         /**
 678          * Override handling of action=purge
 679          */
 680         function doPurge() {
 681                 $this->img = new Image( $this->mTitle );
 682                 if( $this->img->exists() ) {
 683                         wfDebug( "ImagePage::doPurge purging " . $this->img->getName() . "\n" );
 684                         $update = new HTMLCacheUpdate( $this->mTitle, 'imagelinks' );
 685                         $update->doUpdate();
 686                         $this->img->purgeCache();
 687                 } else {
 688                         wfDebug( "ImagePage::doPurge no image\n" );
 689                 }
 690                 parent::doPurge();
 691         }
 692
 693 }
 694
 695 /**
 696  * @todo document
 697  * @package MediaWiki
 698  */
 699 class ImageHistoryList {
 700         function ImageHistoryList( &$skin ) {
 701                 $this->skin =& $skin;
 702         }
 703
 704         function beginImageHistoryList() {
 705                 $s = "\n" .
 706                         Xml::element( 'h2', array( 'id' => 'filehistory' ), wfMsg( 'imghistory' ) ) .
 707                         "\n<p>" . wfMsg( 'imghistlegend' ) . "</p>\n".'<ul class="special">';
 708                 return $s;
 709         }
 710
 711         function endImageHistoryList() {
 712                 $s = "</ul>\n";
 713                 return $s;
 714         }
 715
 716         function imageHistoryLine( $iscur, $timestamp, $img, $user, $usertext, $size, $description, $width, $height ) {
 717                 global $wgUser, $wgLang, $wgTitle, $wgContLang;
 718
 719                 $datetime = $wgLang->timeanddate( $timestamp, true );
 720                 $del = wfMsgHtml( 'deleteimg' );
 721                 $delall = wfMsgHtml( 'deleteimgcompletely' );
 722                 $cur = wfMsgHtml( 'cur' );
 723
 724                 if ( $iscur ) {
 725                         $url = Image::imageUrl( $img );
 726                         $rlink = $cur;
 727                         if ( $wgUser->isAllowed('delete') ) {
 728                                 $link = $wgTitle->escapeLocalURL( 'image=' . $wgTitle->getPartialURL() .
 729                                   '&action=delete' );
 730                                 $style = $this->skin->getInternalLinkAttributes( $link, $delall );
 731
 732                                 $dlink = '<a href="'.$link.'"'.$style.'>'.$delall.'</a>';
 733                         } else {
 734                                 $dlink = $del;
 735                         }
 736                 } else {
 737                         $url = htmlspecialchars( wfImageArchiveUrl( $img ) );
 738                         if( $wgUser->getID() != 0 && $wgTitle->userCanEdit() ) {
 739                                 $token = urlencode( $wgUser->editToken( $img ) );
 740                                 $rlink = $this->skin->makeKnownLinkObj( $wgTitle,
 741                                            wfMsgHtml( 'revertimg' ), 'action=revert&oldimage=' .
 742                                            urlencode( $img ) . "&wpEditToken=$token" );
 743                                 $dlink = $this->skin->makeKnownLinkObj( $wgTitle,
 744                                            $del, 'action=delete&oldimage=' . urlencode( $img ) .
 745                                            "&wpEditToken=$token" );
 746                         } else {
 747                                 # Having live active links for non-logged in users
 748                                 # means that bots and spiders crawling our site can
 749                                 # inadvertently change content. Baaaad idea.
 750                                 $rlink = wfMsgHtml( 'revertimg' );
 751                                 $dlink = $del;
 752                         }
 753                 }
 754
 755                 $userlink = $this->skin->userLink( $user, $usertext ) . $this->skin->userToolLinks( $user, $usertext );
 756                 $nbytes = wfMsgExt( 'nbytes', array( 'parsemag', 'escape' ),
 757                         $wgLang->formatNum( $size ) );
 758                 $widthheight = wfMsgHtml( 'widthheight', $width, $height );
 759                 $style = $this->skin->getInternalLinkAttributes( $url, $datetime );
 760
 761                 $s = "<li> ({$dlink}) ({$rlink}) <a href=\"{$url}\"{$style}>{$datetime}</a> . . {$userlink} . . {$widthheight} ({$nbytes})";
 762
 763                 $s .= $this->skin->commentBlock( $description, $wgTitle );
 764                 $s .= "</li>\n";
 765                 return $s;
 766         }
 767
 768 }
 769
 770
 771 ?>