includes/ImagePage.php

   1 <?php
   2 /**
   3  */
   4
   5 /**
   6  *
   7  */
   8 if( !defined( 'MEDIAWIKI' ) )
   9         die( 1 );
  10
  11 /**
  12  * Special handling for image description pages
  13  *
  14  * @addtogroup Media
  15  */
  16 class ImagePage extends Article {
  17
  18         /* private */ var $img;  // Image object this page is shown for
  19         var $mExtraDescription = false;
  20
  21         function __construct( $title ) {
  22                 parent::__construct( $title );
  23                 $this->img = wfFindFile( $this->mTitle );
  24                 if ( !$this->img ) {
  25                         $this->img = wfLocalFile( $this->mTitle );
  26                 }
  27         }
  28
  29         /**
  30          * Handler for action=render
  31          * Include body text only; none of the image extras
  32          */
  33         function render() {
  34                 global $wgOut;
  35                 $wgOut->setArticleBodyOnly( true );
  36                 $wgOut->addSecondaryWikitext( $this->getContent() );
  37         }
  38
  39         function view() {
  40                 global $wgOut, $wgShowEXIF, $wgRequest, $wgUser;
  41
  42                 $diff = $wgRequest->getVal( 'diff' );
  43                 $diffOnly = $wgRequest->getBool( 'diffonly', $wgUser->getOption( 'diffonly' ) );
  44
  45                 if ( $this->mTitle->getNamespace() != NS_IMAGE || ( isset( $diff ) && $diffOnly ) )
  46                         return Article::view();
  47
  48                 if ($wgShowEXIF && $this->img->exists()) {
  49                         $formattedMetadata = $this->img->formatMetadata();
  50                         $showmeta = $formattedMetadata !== false;
  51                 } else {
  52                         $showmeta = false;
  53                 }
  54
  55                 if ($this->img->exists())
  56                         $wgOut->addHTML($this->showTOC($showmeta));
  57
  58                 $this->openShowImage();
  59
  60                 # No need to display noarticletext, we use our own message, output in openShowImage()
  61                 if ( $this->getID() ) {
  62                         Article::view();
  63                 } else {
  64                         # Just need to set the right headers
  65                         $wgOut->setArticleFlag( true );
  66                         $wgOut->setRobotpolicy( 'index,follow' );
  67                         $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
  68                         $this->viewUpdates();
  69                 }
  70
  71                 # Show shared description, if needed
  72                 if ( $this->mExtraDescription ) {
  73                         $fol = wfMsg( 'shareddescriptionfollows' );
  74                         if( $fol != '-' && !wfEmptyMsg( 'shareddescriptionfollows', $fol ) ) {
  75                                 $wgOut->addWikiText( $fol );
  76                         }
  77                         $wgOut->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . '</div>' );
  78                 }
  79
  80                 $this->closeShowImage();
  81                 $this->imageHistory();
  82                 $this->imageLinks();
  83
  84                 if ( $showmeta ) {
  85                         global $wgStylePath, $wgStyleVersion;
  86                         $expand = htmlspecialchars( wfEscapeJsString( wfMsg( 'metadata-expand' ) ) );
  87                         $collapse = htmlspecialchars( wfEscapeJsString( wfMsg( 'metadata-collapse' ) ) );
  88                         $wgOut->addHTML( Xml::element( 'h2', array( 'id' => 'metadata' ), wfMsg( 'metadata' ) ). "\n" );
  89                         $wgOut->addWikiText( $this->makeMetadataTable( $formattedMetadata ) );
  90                         $wgOut->addHTML(
  91                                 "<script type=\"text/javascript\" src=\"$wgStylePath/common/metadata.js?$wgStyleVersion\"></script>\n" .
  92                                 "<script type=\"text/javascript\">attachMetadataToggle('mw_metadata', '$expand', '$collapse');</script>\n" );
  93                 }
  94         }
  95
  96         /**
  97          * Create the TOC
  98          *
  99          * @access private
 100          *
 101          * @param bool $metadata Whether or not to show the metadata link
 102          * @return string
 103          */
 104         function showTOC( $metadata ) {
 105                 global $wgLang;
 106                 $r = '<ul id="filetoc">
 107                         <li><a href="#file">' . $wgLang->getNsText( NS_IMAGE ) . '</a></li>
 108                         <li><a href="#filehistory">' . wfMsgHtml( 'filehist' ) . '</a></li>
 109                         <li><a href="#filelinks">' . wfMsgHtml( 'imagelinks' ) . '</a></li>' .
 110                         ($metadata ? ' <li><a href="#metadata">' . wfMsgHtml( 'metadata' ) . '</a></li>' : '') . '
 111                 </ul>';
 112                 return $r;
 113         }
 114
 115         /**
 116          * Make a table with metadata to be shown in the output page.
 117          *
 118          * @access private
 119          *
 120          * @param array $exif The array containing the EXIF data
 121          * @return string
 122          */
 123         function makeMetadataTable( $metadata ) {
 124                 $r = wfMsg( 'metadata-help' ) . "\n\n";
 125                 $r .= "{| id=mw_metadata class=mw_metadata\n";
 126                 foreach ( $metadata as $type => $stuff ) {
 127                         foreach ( $stuff as $k => $v ) {
 128                                 $class = Sanitizer::escapeId( $v['id'] );
 129                                 if( $type == 'collapsed' ) {
 130                                         $class .= ' collapsable';
 131                                 }
 132                                 $r .= "|- class=\"$class\"\n";
 133                                 $r .= "!| {$v['name']}\n";
 134                                 $r .= "|| {$v['value']}\n";
 135                         }
 136                 }
 137                 $r .= '|}';
 138                 return $r;
 139         }
 140
 141         /**
 142          * Overloading Article's getContent method.
 143          *
 144          * Omit noarticletext if sharedupload; text will be fetched from the
 145          * shared upload server if possible.
 146          */
 147         function getContent() {
 148                 if( $this->img && !$this->img->isLocal() && 0 == $this->getID() ) {
 149                         return '';
 150                 }
 151                 return Article::getContent();
 152         }
 153
 154         function openShowImage() {
 155                 global $wgOut, $wgUser, $wgImageLimits, $wgRequest, $wgLang;
 156
 157                 $full_url  = $this->img->getURL();
 158                 $linkAttribs = false;
 159                 $sizeSel = intval( $wgUser->getOption( 'imagesize') );
 160                 if( !isset( $wgImageLimits[$sizeSel] ) ) {
 161                         $sizeSel = User::getDefaultOption( 'imagesize' );
 162
 163                         // The user offset might still be incorrect, specially if
 164                         // $wgImageLimits got changed (see bug #8858).
 165                         if( !isset( $wgImageLimits[$sizeSel] ) ) {
 166                                 // Default to the first offset in $wgImageLimits
 167                                 $sizeSel = 0;
 168                         }
 169                 }
 170                 $max = $wgImageLimits[$sizeSel];
 171                 $maxWidth = $max[0];
 172                 $maxHeight = $max[1];
 173                 $sk = $wgUser->getSkin();
 174
 175                 if ( $this->img->exists() ) {
 176                         # image
 177                         $page = $wgRequest->getIntOrNull( 'page' );
 178                         if ( is_null( $page ) ) {
 179                                 $params = array();
 180                                 $page = 1;
 181                         } else {
 182                                 $params = array( 'page' => $page );
 183                         }
 184                         $width_orig = $this->img->getWidth();
 185                         $width = $width_orig;
 186                         $height_orig = $this->img->getHeight();
 187                         $height = $height_orig;
 188                         $mime = $this->img->getMimeType();
 189                         $showLink = false;
 190                         $linkAttribs = array( 'href' => $full_url );
 191
 192       wfRunHooks( 'ImageOpenShowImageInlineBefore', array( &$this , &$wgOut ) ) ;
 193
 194                         if ( $this->img->allowInlineDisplay() and $width and $height) {
 195                                 # image
 196
 197                                 # "Download high res version" link below the image
 198                                 $msgsize = wfMsgHtml('file-info-size', $width_orig, $height_orig, $sk->formatSize( $this->img->getSize() ), $mime );
 199                                 # We'll show a thumbnail of this image
 200                                 if ( $width > $maxWidth || $height > $maxHeight ) {
 201                                         # Calculate the thumbnail size.
 202                                         # First case, the limiting factor is the width, not the height.
 203                                         if ( $width / $height >= $maxWidth / $maxHeight ) {
 204                                                 $height = round( $height * $maxWidth / $width);
 205                                                 $width = $maxWidth;
 206                                                 # Note that $height <= $maxHeight now.
 207                                         } else {
 208                                                 $newwidth = floor( $width * $maxHeight / $height);
 209                                                 $height = round( $height * $newwidth / $width );
 210                                                 $width = $newwidth;
 211                                                 # Note that $height <= $maxHeight now, but might not be identical
 212                                                 # because of rounding.
 213                                         }
 214                                         $msgbig  = wfMsgHtml( 'show-big-image' );
 215                                         $msgsmall = wfMsgExt( 'show-big-image-thumb',
 216                                                 array( 'parseinline' ), $width, $height );
 217                                 } else {
 218                                         # Image is small enough to show full size on image page
 219                                         $msgbig = htmlspecialchars( $this->img->getName() );
 220                                         $msgsmall = wfMsgExt( 'file-nohires', array( 'parseinline' ) );
 221                                 }
 222
 223                                 $params['width'] = $width;
 224                                 $thumbnail = $this->img->transform( $params );
 225
 226                                 $anchorclose = "<br />";
 227                                 if( $this->img->mustRender() ) {
 228                                         $showLink = true;
 229                                 } else {
 230                                         $anchorclose .=
 231                                                 $msgsmall .
 232                                                 '<br />' . Xml::tags( 'a', $linkAttribs,  $msgbig ) . ' ' . $msgsize;
 233                                 }
 234
 235                                 if ( $this->img->isMultipage() ) {
 236                                         $wgOut->addHTML( '<table class="multipageimage"><tr><td>' );
 237                                 }
 238
 239                                 $imgAttribs = array(
 240                                         'border' => 0,
 241                                         'alt' => $this->img->getTitle()->getPrefixedText()
 242                                 );
 243
 244                                 if ( $thumbnail ) {
 245                                         $wgOut->addHTML( '<div class="fullImageLink" id="file">' .
 246                                                 $thumbnail->toHtml( $imgAttribs, $linkAttribs ) .
 247                                                 $anchorclose . '</div>' );
 248                                 }
 249
 250                                 if ( $this->img->isMultipage() ) {
 251                                         $count = $this->img->pageCount();
 252
 253                                         if ( $page > 1 ) {
 254                                                 $label = $wgOut->parse( wfMsg( 'imgmultipageprev' ), false );
 255                                                 $link = $sk->makeKnownLinkObj( $this->mTitle, $label, 'page='. ($page-1) );
 256                                                 $thumb1 = $sk->makeThumbLinkObj( $this->mTitle, $this->img, $link, $label, 'none',
 257                                                         array( 'page' => $page - 1 ) );
 258                                         } else {
 259                                                 $thumb1 = '';
 260                                         }
 261
 262                                         if ( $page < $count ) {
 263                                                 $label = wfMsg( 'imgmultipagenext' );
 264                                                 $link = $sk->makeKnownLinkObj( $this->mTitle, $label, 'page='. ($page+1) );
 265                                                 $thumb2 = $sk->makeThumbLinkObj( $this->mTitle, $this->img, $link, $label, 'none',
 266                                                         array( 'page' => $page + 1 ) );
 267                                         } else {
 268                                                 $thumb2 = '';
 269                                         }
 270
 271                                         global $wgScript;
 272                                         $select = '<form name="pageselector" action="' .
 273                                                 htmlspecialchars( $wgScript ) .
 274                                                 '" method="get" onchange="document.pageselector.submit();">' .
 275                                                 Xml::hidden( 'title', $this->getTitle()->getPrefixedDbKey() );
 276                                         $select .= $wgOut->parse( wfMsg( 'imgmultigotopre' ), false ) .
 277                                                 ' <select id="pageselector" name="page">';
 278                                         for ( $i=1; $i <= $count; $i++ ) {
 279                                                 $select .= Xml::option( $wgLang->formatNum( $i ), $i,
 280                                                         $i == $page );
 281                                         }
 282                                         $select .= '</select>' . $wgOut->parse( wfMsg( 'imgmultigotopost' ), false ) .
 283                                                 '<input type="submit" value="' .
 284                                                 htmlspecialchars( wfMsg( 'imgmultigo' ) ) . '"></form>';
 285
 286                                         $wgOut->addHTML( '</td><td><div class="multipageimagenavbox">' .
 287                                                 "$select<hr />$thumb1\n$thumb2<br clear=\"all\" /></div></td></tr></table>" );
 288                                 }
 289                         } else {
 290                                 #if direct link is allowed but it's not a renderable image, show an icon.
 291                                 if ($this->img->isSafeFile()) {
 292                                         $icon= $this->img->iconThumb();
 293
 294                                         $wgOut->addHTML( '<div class="fullImageLink" id="file"><a href="' . $full_url . '">' .
 295                                         $icon->toHtml() .
 296                                         '</a></div>' );
 297                                 }
 298
 299                                 $showLink = true;
 300                         }
 301
 302
 303                         if ($showLink) {
 304                                 // Workaround for incorrect MIME type on SVGs uploaded in previous versions
 305                                 if ($mime == 'image/svg') $mime = 'image/svg+xml';
 306
 307                                 $filename = wfEscapeWikiText( $this->img->getName() );
 308                                 $info = wfMsg( 'file-info', $sk->formatSize( $this->img->getSize() ), $mime );
 309                                 $infores = '';
 310
 311                                 // Check for MIME type. Other types may have more information in the future.
 312                                 if (substr($mime,0,9) == 'image/svg' ) {
 313                                         $infores = wfMsg('file-svg', $width_orig, $height_orig ) . '<br />';
 314                                 }
 315
 316                                 global $wgContLang;
 317                                 $dirmark = $wgContLang->getDirMark();
 318                                 if (!$this->img->isSafeFile()) {
 319                                         $warning = wfMsg( 'mediawarning' );
 320                                         $wgOut->addWikiText( <<<EOT
 321 <div class="fullMedia">$infores
 322 <span class="dangerousLink">[[Media:$filename|$filename]]</span>$dirmark
 323 <span class="fileInfo"> $info</span>
 324 </div>
 325
 326 <div class="mediaWarning">$warning</div>
 327 EOT
 328                                                 );
 329                                 } else {
 330                                         $wgOut->addWikiText( <<<EOT
 331 <div class="fullMedia">$infores
 332 [[Media:$filename|$filename]]$dirmark <span class="fileInfo"> $info</span>
 333 </div>
 334 EOT
 335                                                 );
 336                                 }
 337                         }
 338
 339                         if(!$this->img->isLocal()) {
 340                                 $this->printSharedImageText();
 341                         }
 342                 } else {
 343                         # Image does not exist
 344
 345                         $title = SpecialPage::getTitleFor( 'Upload' );
 346                         $link = $sk->makeKnownLinkObj($title, wfMsgHtml('noimage-linktext'),
 347                                 'wpDestFile=' . urlencode( $this->img->getName() ) );
 348                         $wgOut->addHTML( wfMsgWikiHtml( 'noimage', $link ) );
 349                 }
 350         }
 351
 352         function printSharedImageText() {
 353                 global $wgOut, $wgUser;
 354
 355                 $descUrl = $this->img->getDescriptionUrl();
 356                 $descText = $this->img->getDescriptionText();
 357                 $s = "<div class='sharedUploadNotice'>" . wfMsgWikiHtml("sharedupload");
 358                 if ( $descUrl && !$descText) {
 359                         $sk = $wgUser->getSkin();
 360                         $link = $sk->makeExternalLink( $descUrl, wfMsg('shareduploadwiki-linktext') );
 361                         $s .= " " . wfMsgWikiHtml('shareduploadwiki', $link);
 362                 }
 363                 $s .= "</div>";
 364                 $wgOut->addHTML($s);
 365
 366                 if ( $descText ) {
 367                         $this->mExtraDescription = $descText;
 368                 }
 369         }
 370
 371         function getUploadUrl() {
 372                 global $wgServer;
 373                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 374                 return $wgServer . $uploadTitle->getLocalUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) );
 375         }
 376
 377         /**
 378          * Print out the various links at the bottom of the image page, e.g. reupload,
 379          * external editing (and instructions link) etc.
 380          */
 381         function uploadLinksBox() {
 382                 global $wgUser, $wgOut;
 383
 384                 if( !$this->img->isLocal() )
 385                         return;
 386
 387                 $sk = $wgUser->getSkin();
 388
 389                 $wgOut->addHtml( '<br /><ul>' );
 390
 391                 # "Upload a new version of this file" link
 392                 if( UploadForm::userCanReUpload($wgUser,$this->img->name) ) {
 393                         $ulink = $sk->makeExternalLink( $this->getUploadUrl(), wfMsg( 'uploadnewversion-linktext' ) );
 394                         $wgOut->addHtml( "<li><div class='plainlinks'>{$ulink}</div></li>" );
 395                 }
 396
 397                 # External editing link
 398                 $elink = $sk->makeKnownLinkObj( $this->mTitle, wfMsgHtml( 'edit-externally' ), 'action=edit&externaledit=true&mode=file' );
 399                 $wgOut->addHtml( '<li>' . $elink . '<div>' . wfMsgWikiHtml( 'edit-externally-help' ) . '</div></li>' );
 400
 401                 $wgOut->addHtml( '</ul>' );
 402         }
 403
 404         function closeShowImage()
 405         {
 406                 # For overloading
 407
 408         }
 409
 410         /**
 411          * If the page we've just displayed is in the "Image" namespace,
 412          * we follow it with an upload history of the image and its usage.
 413          */
 414         function imageHistory()
 415         {
 416                 global $wgUser, $wgOut, $wgUseExternalEditor;
 417
 418                 $sk = $wgUser->getSkin();
 419
 420                 $line = $this->img->nextHistoryLine();
 421
 422                 if ( $line ) {
 423                         $list = new ImageHistoryList( $sk, $this->img );
 424                         $s = $list->beginImageHistoryList() .
 425                                 $list->imageHistoryLine( true, wfTimestamp(TS_MW, $line->img_timestamp),
 426                                         $this->mTitle->getDBkey(),  $line->img_user,
 427                                         $line->img_user_text, $line->img_size, $line->img_description,
 428                                         $line->img_width, $line->img_height
 429                                 );
 430
 431                         while ( $line = $this->img->nextHistoryLine() ) {
 432                                 $s .= $list->imageHistoryLine( false, $line->img_timestamp,
 433                                         $line->oi_archive_name, $line->img_user,
 434                                         $line->img_user_text, $line->img_size, $line->img_description,
 435                                         $line->img_width, $line->img_height
 436                                 );
 437                         }
 438                         $s .= $list->endImageHistoryList();
 439                 } else { $s=''; }
 440                 $wgOut->addHTML( $s );
 441
 442                 $this->img->resetHistory();     // free db resources
 443
 444                 # Exist check because we don't want to show this on pages where an image
 445                 # doesn't exist along with the noimage message, that would suck. -ævar
 446                 if( $wgUseExternalEditor && $this->img->exists() ) {
 447                         $this->uploadLinksBox();
 448                 }
 449
 450         }
 451
 452         function imageLinks()
 453         {
 454                 global $wgUser, $wgOut;
 455
 456                 $wgOut->addHTML( Xml::element( 'h2', array( 'id' => 'filelinks' ), wfMsg( 'imagelinks' ) ) . "\n" );
 457
 458                 $dbr = wfGetDB( DB_SLAVE );
 459                 $page = $dbr->tableName( 'page' );
 460                 $imagelinks = $dbr->tableName( 'imagelinks' );
 461
 462                 $sql = "SELECT page_namespace,page_title FROM $imagelinks,$page WHERE il_to=" .
 463                   $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=page_id";
 464                 $sql = $dbr->limitResult($sql, 500, 0);
 465                 $res = $dbr->query( $sql, "ImagePage::imageLinks" );
 466
 467                 if ( 0 == $dbr->numRows( $res ) ) {
 468                         $wgOut->addHtml( '<p>' . wfMsg( "nolinkstoimage" ) . "</p>\n" );
 469                         return;
 470                 }
 471                 $wgOut->addHTML( '<p>' . wfMsg( 'linkstoimage' ) .  "</p>\n<ul>" );
 472
 473                 $sk = $wgUser->getSkin();
 474                 while ( $s = $dbr->fetchObject( $res ) ) {
 475                         $name = Title::MakeTitle( $s->page_namespace, $s->page_title );
 476                         $link = $sk->makeKnownLinkObj( $name, "" );
 477                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 478                 }
 479                 $wgOut->addHTML( "</ul>\n" );
 480         }
 481
 482         function delete()
 483         {
 484                 global $wgUser, $wgOut, $wgRequest;
 485
 486                 if ( !$this->img->exists() || !$this->img->isLocal() ) {
 487                         # Use standard article deletion
 488                         Article::delete();
 489                         return;
 490                 }
 491
 492                 $confirm = $wgRequest->wasPosted();
 493                 $reason = $wgRequest->getVal( 'wpReason' );
 494                 $image = $wgRequest->getVal( 'image' );
 495                 $oldimage = $wgRequest->getVal( 'oldimage' );
 496
 497                 # Only sysops can delete images. Previously ordinary users could delete
 498                 # old revisions, but this is no longer the case.
 499                 if ( !$wgUser->isAllowed('delete') ) {
 500                         $wgOut->permissionRequired( 'delete' );
 501                         return;
 502                 }
 503                 if ( $wgUser->isBlocked() ) {
 504                         $wgOut->blockedPage();
 505                         return;
 506                 }
 507                 if ( wfReadOnly() ) {
 508                         $wgOut->readOnlyPage();
 509                         return;
 510                 }
 511
 512                 # Better double-check that it hasn't been deleted yet!
 513                 $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
 514                 if ( ( !is_null( $image ) )
 515                   && ( '' == trim( $image ) ) ) {
 516                         $wgOut->showFatalError( wfMsg( 'cannotdelete' ) );
 517                         return;
 518                 }
 519
 520                 # Deleting old images doesn't require confirmation
 521                 if ( !is_null( $oldimage ) || $confirm ) {
 522                         if( $wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 523                                 $this->doDeleteImage( $reason );
 524                         } else {
 525                                 $wgOut->showFatalError( wfMsg( 'sessionfailure' ) );
 526                         }
 527                         return;
 528                 }
 529
 530                 if ( !is_null( $image ) ) {
 531                         $q = '&image=' . urlencode( $image );
 532                 } else if ( !is_null( $oldimage ) ) {
 533                         $q = '&oldimage=' . urlencode( $oldimage );
 534                 } else {
 535                         $q = '';
 536                 }
 537                 return $this->confirmDelete( $q, $wgRequest->getText( 'wpReason' ) );
 538         }
 539
 540         /*
 541          * Delete an image.
 542          * Called doDeleteImage() not doDelete() so that Article::delete() doesn't
 543          * call back to here.
 544          *
 545          * @param $reason User provided reason for deletion.
 546          */
 547         function doDeleteImage( $reason ) {
 548                 global $wgOut, $wgRequest;
 549
 550                 $oldimage = $wgRequest->getVal( 'oldimage' );
 551
 552                 if ( !is_null( $oldimage ) ) {
 553                         if ( strlen( $oldimage ) < 16 ) {
 554                                 $wgOut->showUnexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 555                                 return;
 556                         }
 557                         if( strpos( $oldimage, '/' ) !== false || strpos( $oldimage, '\\' ) !== false ) {
 558                                 $wgOut->showUnexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 559                                 return;
 560                         }
 561                         $status = $this->doDeleteOldImage( $oldimage );
 562                         $deleted = $oldimage;
 563                 } else {
 564                         $status = $this->img->delete( $reason );
 565                         if ( !$status->isGood() ) {
 566                                 // Warning or error
 567                                 $wgOut->addWikiText( $status->getWikiText( 'filedeleteerror-short', 'filedeleteerror-long' ) );
 568                         }
 569                         if ( $status->ok ) {
 570                                 # Image itself is now gone, and database is cleaned.
 571                                 # Now we remove the image description page.
 572                                 $article = new Article( $this->mTitle );
 573                                 $article->doDeleteArticle( $reason ); # ignore errors
 574                                 $deleted = $this->img->getName();
 575                         }
 576                 }
 577
 578                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 579
 580                 if ( !$status->ok ) {
 581                         // Fatal error flagged
 582                         $wgOut->setPagetitle( wfMsg( 'errorpagetitle' ) );
 583                         $wgOut->returnToMain( false, $this->mTitle->getPrefixedText() );
 584                 } else {
 585                         // Operation completed
 586                         $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 587                         $loglink = '[[Special:Log/delete|' . wfMsg( 'deletionlog' ) . ']]';
 588                         $text = wfMsg( 'deletedtext', $deleted, $loglink );
 589                         $wgOut->addWikiText( $text );
 590                         $wgOut->returnToMain( false, $this->mTitle->getPrefixedText() );
 591                 }
 592         }
 593
 594         /**
 595          * Delete an old revision of an image,
 596          * @return FileRepoStatus
 597          */
 598         function doDeleteOldImage( $oldimage ) {
 599                 global $wgOut;
 600
 601                 $status = $this->img->deleteOld( $oldimage, '' );
 602                 if( !$status->isGood() ) {
 603                         $wgOut->addWikiText( $status->getWikiText( 'filedeleteerror-short', 'filedeleteerror-long' ) );
 604                 }
 605                 if ( $status->ok ) {
 606                         # Log the deletion
 607                         $log = new LogPage( 'delete' );
 608                         $log->addEntry( 'delete', $this->mTitle, wfMsg('deletedrevision',$oldimage) );
 609                 }
 610                 return $status;
 611         }
 612
 613         function revert() {
 614                 global $wgOut, $wgRequest, $wgUser;
 615
 616                 $oldimage = $wgRequest->getText( 'oldimage' );
 617                 if ( strlen( $oldimage ) < 16 ) {
 618                         $wgOut->showUnexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 619                         return;
 620                 }
 621                 if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
 622                         $wgOut->showUnexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
 623                         return;
 624                 }
 625
 626                 if ( wfReadOnly() ) {
 627                         $wgOut->readOnlyPage();
 628                         return;
 629                 }
 630                 if( $wgUser->isAnon() ) {
 631                         $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
 632                         return;
 633                 }
 634                 if ( ! $this->mTitle->userCan( 'edit' ) ) {
 635                         $wgOut->readOnlyPage( $this->getContent(), true );
 636                         return;
 637                 }
 638                 if ( $wgUser->isBlocked() ) {
 639                         $wgOut->blockedPage();
 640                         return;
 641                 }
 642                 if( !$wgUser->matchEditToken( $wgRequest->getVal( 'wpEditToken' ), $oldimage ) ) {
 643                         $wgOut->showErrorPage( 'internalerror', 'sessionfailure' );
 644                         return;
 645                 }
 646
 647                 $sourcePath = $this->img->getArchiveVirtualUrl( $oldimage );
 648                 $comment = wfMsg( "reverted" );
 649                 // TODO: preserve file properties from DB instead of reloading from file
 650                 $status = $this->img->upload( $sourcePath, $comment, $comment );
 651
 652                 if ( !$status->isGood() ) {
 653                         $this->showError( $status->getWikiText() );
 654                         return;
 655                 }
 656
 657                 $wgOut->setPagetitle( wfMsg( 'actioncomplete' ) );
 658                 $wgOut->setRobotpolicy( 'noindex,nofollow' );
 659                 $wgOut->addHTML( wfMsg( 'imagereverted' ) );
 660
 661                 $descTitle = $this->img->getTitle();
 662                 $wgOut->returnToMain( false, $descTitle->getPrefixedText() );
 663         }
 664
 665         /**
 666          * Override handling of action=purge
 667          */
 668         function doPurge() {
 669                 if( $this->img->exists() ) {
 670                         wfDebug( "ImagePage::doPurge purging " . $this->img->getName() . "\n" );
 671                         $update = new HTMLCacheUpdate( $this->mTitle, 'imagelinks' );
 672                         $update->doUpdate();
 673                         $this->img->upgradeRow();
 674                         $this->img->purgeCache();
 675                 } else {
 676                         wfDebug( "ImagePage::doPurge no image\n" );
 677                 }
 678                 parent::doPurge();
 679         }
 680
 681         /**
 682          * Display an error with a wikitext description
 683          */
 684         function showError( $description ) {
 685                 global $wgOut;
 686                 $wgOut->setPageTitle( wfMsg( "internalerror" ) );
 687                 $wgOut->setRobotpolicy( "noindex,nofollow" );
 688                 $wgOut->setArticleRelated( false );
 689                 $wgOut->enableClientCache( false );
 690                 $wgOut->addWikiText( $description );
 691         }
 692
 693 }
 694
 695 /**
 696  * Builds the image revision log shown on image pages
 697  *
 698  * @addtogroup Media
 699  */
 700 class ImageHistoryList {
 701
 702         protected $img, $skin, $title;
 703
 704         public function __construct( $skin, $img ) {
 705                 $this->skin = $skin;
 706                 $this->img = $img;
 707                 $this->title = $img->getTitle();
 708         }
 709
 710         public function beginImageHistoryList() {
 711                 global $wgOut, $wgUser;
 712                 return Xml::element( 'h2', array( 'id' => 'filehistory' ), wfMsg( 'filehist' ) )
 713                         . $wgOut->parse( wfMsgNoTrans( 'filehist-help' ) )
 714                         . Xml::openElement( 'table', array( 'class' => 'filehistory' ) ) . "\n"
 715                         . '<tr><th></th>'
 716                         . ( $this->img->isLocal() && $wgUser->isAllowed( 'delete' ) ? '<th></th>' : '' )
 717                         . '<th>' . wfMsgHtml( 'filehist-datetime' ) . '</th>'
 718                         . '<th>' . wfMsgHtml( 'filehist-user' ) . '</th>'
 719                         . '<th>' . wfMsgHtml( 'filehist-dimensions' ) . '</th>'
 720                         . '<th>' . wfMsgHtml( 'filehist-filesize' ) . '</th>'
 721                         . '<th>' . wfMsgHtml( 'filehist-comment' ) . '</th>'
 722                         . "</tr>\n";
 723         }
 724
 725         public function endImageHistoryList() {
 726                 return "</table>\n";
 727         }
 728
 729         public function imageHistoryLine( $iscur, $timestamp, $img, $user, $usertext, $size, $description, $width, $height ) {
 730                 global $wgUser, $wgLang, $wgTitle, $wgContLang;
 731                 $local = $this->img->isLocal();
 732                 $row = '';
 733
 734                 // Deletion link
 735                 if( $local && $wgUser->isAllowed( 'delete' ) ) {
 736                         $row .= '<td>';
 737                         $q[] = 'action=delete';
 738                         $q[] = ( $iscur ? 'image=' . $this->title->getPartialUrl() : 'oldimage=' . urlencode( $img ) );
 739                         if( !$iscur )
 740                                 $q[] = 'wpEditToken=' . urlencode( $wgUser->editToken( $img ) );
 741                         $row .= '(' . $this->skin->makeKnownLinkObj(
 742                                 $this->title,
 743                                 wfMsgHtml( $iscur ? 'filehist-deleteall' : 'filehist-deleteone' ),
 744                                 implode( '&', $q )
 745                         ) . ')';
 746                         $row .= '</td>';
 747                 }
 748
 749                 // Reversion link/current indicator
 750                 $row .= '<td>';
 751                 if( $iscur ) {
 752                         $row .= '(' . wfMsgHtml( 'filehist-current' ) . ')';
 753                 } elseif( $local && $wgUser->isLoggedIn() && $this->title->userCan( 'edit' ) ) {
 754                         $q[] = 'action=revert';
 755                         $q[] = 'oldimage=' . urlencode( $img );
 756                         $q[] = 'wpEditToken=' . urlencode( $wgUser->editToken( $img ) );
 757                         $row .= '(' . $this->skin->makeKnownLinkObj(
 758                                 $this->title,
 759                                 wfMsgHtml( 'filehist-revert' ),
 760                                 implode( '&', $q )
 761                         ) . ')';
 762                 }
 763                 $row .= '</td>';
 764
 765                 // Date/time and image link
 766                 $row .= '<td>';
 767                 $url = $iscur ? $this->img->getUrl() : $this->img->getArchiveUrl( $img );
 768                 $row .= Xml::element(
 769                         'a',
 770                         array( 'href' => $url ),
 771                         $wgLang->timeAndDate( $timestamp, true )
 772                 );
 773                 $row .= '</td>';
 774
 775                 // Uploading user
 776                 $row .= '<td>';
 777                 if( $local ) {
 778                         $row .= $this->skin->userLink( $user, $usertext ) . $this->skin->userToolLinks( $user, $usertext );
 779                 } else {
 780                         $row .= htmlspecialchars( $usertext );
 781                 }
 782                 $row .= '</td>';
 783
 784                 // Image dimensions
 785                 // FIXME: It would be nice to show the duration (sound files) or
 786                 // width/height/duration (video files) here, but this needs some
 787                 // additional media handler work
 788                 $row .= '<td>' . wfMsgHtml( 'widthheight', $width, $height ) . '</td>';
 789
 790                 // File size
 791                 $row .= '<td>' . $this->skin->formatSize( $size ) . '</td>';
 792
 793                 // Comment
 794                 $row .= '<td>' . $this->skin->formatComment( $description, $this->title ) . '</td>';
 795
 796                 return "<tr>{$row}</tr>\n";
 797         }
 798
 799 }