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         /* private */ var $repo;
  20         var $mExtraDescription = false;
  21
  22         function __construct( $title, $time = false ) {
  23                 parent::__construct( $title );
  24                 $this->img = wfFindFile( $this->mTitle, $time );
  25                 if ( !$this->img ) {
  26                         $this->img = wfLocalFile( $this->mTitle );
  27                         $this->current = $this->img;
  28                 } else {
  29                         $this->current = $time ? wfLocalFile( $this->mTitle ) : $this->img;
  30                 }
  31                 $this->repo = $this->img->repo;
  32         }
  33
  34         /**
  35          * Handler for action=render
  36          * Include body text only; none of the image extras
  37          */
  38         function render() {
  39                 global $wgOut;
  40                 $wgOut->setArticleBodyOnly( true );
  41                 parent::view();
  42         }
  43
  44         function view() {
  45                 global $wgOut, $wgShowEXIF, $wgRequest, $wgUser;
  46
  47                 $diff = $wgRequest->getVal( 'diff' );
  48                 $diffOnly = $wgRequest->getBool( 'diffonly', $wgUser->getOption( 'diffonly' ) );
  49
  50                 if ( $this->mTitle->getNamespace() != NS_IMAGE || ( isset( $diff ) && $diffOnly ) )
  51                         return Article::view();
  52
  53                 if ($wgShowEXIF && $this->img->exists()) {
  54                         // FIXME: bad interface, see note on MediaHandler::formatMetadata().
  55                         $formattedMetadata = $this->img->formatMetadata();
  56                         $showmeta = $formattedMetadata !== false;
  57                 } else {
  58                         $showmeta = false;
  59                 }
  60
  61                 if ($this->img->exists())
  62                         $wgOut->addHTML($this->showTOC($showmeta));
  63
  64                 $this->openShowImage();
  65
  66                 # No need to display noarticletext, we use our own message, output in openShowImage()
  67                 if ( $this->getID() ) {
  68                         Article::view();
  69                 } else {
  70                         # Just need to set the right headers
  71                         $wgOut->setArticleFlag( true );
  72                         $wgOut->setRobotpolicy( 'noindex,nofollow' );
  73                         $wgOut->setPageTitle( $this->mTitle->getPrefixedText() );
  74                         $this->viewUpdates();
  75                 }
  76
  77                 # Show shared description, if needed
  78                 if ( $this->mExtraDescription ) {
  79                         $fol = wfMsgNoTrans( 'shareddescriptionfollows' );
  80                         if( $fol != '-' && !wfEmptyMsg( 'shareddescriptionfollows', $fol ) ) {
  81                                 $wgOut->addWikiText( $fol );
  82                         }
  83                         $wgOut->addHTML( '<div id="shared-image-desc">' . $this->mExtraDescription . '</div>' );
  84                 } else {
  85                         $this->checkSharedConflict();
  86                 }
  87
  88                 $this->closeShowImage();
  89                 $this->imageHistory();
  90                 $this->imageLinks();
  91
  92                 if ( $showmeta ) {
  93                         global $wgStylePath, $wgStyleVersion;
  94                         $expand = htmlspecialchars( wfEscapeJsString( wfMsg( 'metadata-expand' ) ) );
  95                         $collapse = htmlspecialchars( wfEscapeJsString( wfMsg( 'metadata-collapse' ) ) );
  96                         $wgOut->addHTML( Xml::element( 'h2', array( 'id' => 'metadata' ), wfMsg( 'metadata' ) ). "\n" );
  97                         $wgOut->addWikiText( $this->makeMetadataTable( $formattedMetadata ) );
  98                         $wgOut->addHTML(
  99                                 "<script type=\"text/javascript\" src=\"$wgStylePath/common/metadata.js?$wgStyleVersion\"></script>\n" .
 100                                 "<script type=\"text/javascript\">attachMetadataToggle('mw_metadata', '$expand', '$collapse');</script>\n" );
 101                 }
 102         }
 103
 104         /**
 105          * Create the TOC
 106          *
 107          * @access private
 108          *
 109          * @param bool $metadata Whether or not to show the metadata link
 110          * @return string
 111          */
 112         function showTOC( $metadata ) {
 113                 global $wgLang;
 114                 $r = '<ul id="filetoc">
 115                         <li><a href="#file">' . $wgLang->getNsText( NS_IMAGE ) . '</a></li>
 116                         <li><a href="#filehistory">' . wfMsgHtml( 'filehist' ) . '</a></li>
 117                         <li><a href="#filelinks">' . wfMsgHtml( 'imagelinks' ) . '</a></li>' .
 118                         ($metadata ? ' <li><a href="#metadata">' . wfMsgHtml( 'metadata' ) . '</a></li>' : '') . '
 119                 </ul>';
 120                 return $r;
 121         }
 122
 123         /**
 124          * Make a table with metadata to be shown in the output page.
 125          *
 126          * FIXME: bad interface, see note on MediaHandler::formatMetadata().
 127          *
 128          * @access private
 129          *
 130          * @param array $exif The array containing the EXIF data
 131          * @return string
 132          */
 133         function makeMetadataTable( $metadata ) {
 134                 $r = wfMsg( 'metadata-help' ) . "\n\n";
 135                 $r .= "{| id=mw_metadata class=mw_metadata\n";
 136                 foreach ( $metadata as $type => $stuff ) {
 137                         foreach ( $stuff as $v ) {
 138                                 $class = Sanitizer::escapeId( $v['id'] );
 139                                 if( $type == 'collapsed' ) {
 140                                         $class .= ' collapsable';
 141                                 }
 142                                 $r .= "|- class=\"$class\"\n";
 143                                 $r .= "!| {$v['name']}\n";
 144                                 $r .= "|| {$v['value']}\n";
 145                         }
 146                 }
 147                 $r .= '|}';
 148                 return $r;
 149         }
 150
 151         /**
 152          * Overloading Article's getContent method.
 153          *
 154          * Omit noarticletext if sharedupload; text will be fetched from the
 155          * shared upload server if possible.
 156          */
 157         function getContent() {
 158                 if( $this->img && !$this->img->isLocal() && 0 == $this->getID() ) {
 159                         return '';
 160                 }
 161                 return Article::getContent();
 162         }
 163
 164         function openShowImage() {
 165                 global $wgOut, $wgUser, $wgImageLimits, $wgRequest, $wgLang, $wgContLang;
 166
 167                 $full_url  = $this->img->getURL();
 168                 $linkAttribs = false;
 169                 $sizeSel = intval( $wgUser->getOption( 'imagesize') );
 170                 if( !isset( $wgImageLimits[$sizeSel] ) ) {
 171                         $sizeSel = User::getDefaultOption( 'imagesize' );
 172
 173                         // The user offset might still be incorrect, specially if
 174                         // $wgImageLimits got changed (see bug #8858).
 175                         if( !isset( $wgImageLimits[$sizeSel] ) ) {
 176                                 // Default to the first offset in $wgImageLimits
 177                                 $sizeSel = 0;
 178                         }
 179                 }
 180                 $max = $wgImageLimits[$sizeSel];
 181                 $maxWidth = $max[0];
 182                 $maxHeight = $max[1];
 183                 $sk = $wgUser->getSkin();
 184                 $dirmark = $wgContLang->getDirMark();
 185
 186                 if ( $this->img->exists() ) {
 187                         # image
 188                         $page = $wgRequest->getIntOrNull( 'page' );
 189                         if ( is_null( $page ) ) {
 190                                 $params = array();
 191                                 $page = 1;
 192                         } else {
 193                                 $params = array( 'page' => $page );
 194                         }
 195                         $width_orig = $this->img->getWidth();
 196                         $width = $width_orig;
 197                         $height_orig = $this->img->getHeight();
 198                         $height = $height_orig;
 199                         $mime = $this->img->getMimeType();
 200                         $showLink = false;
 201                         $linkAttribs = array( 'href' => $full_url );
 202                         $longDesc = $this->img->getLongDesc();
 203
 204                         wfRunHooks( 'ImageOpenShowImageInlineBefore', array( &$this , &$wgOut ) )       ;
 205
 206                         if ( $this->img->allowInlineDisplay() ) {
 207                                 # image
 208
 209                                 # "Download high res version" link below the image
 210                                 #$msgsize = wfMsgHtml('file-info-size', $width_orig, $height_orig, $sk->formatSize( $this->img->getSize() ), $mime );
 211                                 # We'll show a thumbnail of this image
 212                                 if ( $width > $maxWidth || $height > $maxHeight ) {
 213                                         # Calculate the thumbnail size.
 214                                         # First case, the limiting factor is the width, not the height.
 215                                         if ( $width / $height >= $maxWidth / $maxHeight ) {
 216                                                 $height = round( $height * $maxWidth / $width);
 217                                                 $width = $maxWidth;
 218                                                 # Note that $height <= $maxHeight now.
 219                                         } else {
 220                                                 $newwidth = floor( $width * $maxHeight / $height);
 221                                                 $height = round( $height * $newwidth / $width );
 222                                                 $width = $newwidth;
 223                                                 # Note that $height <= $maxHeight now, but might not be identical
 224                                                 # because of rounding.
 225                                         }
 226                                         $msgbig  = wfMsgHtml( 'show-big-image' );
 227                                         $msgsmall = wfMsgExt( 'show-big-image-thumb',
 228                                                 array( 'parseinline' ), $wgLang->formatNum( $width ), $wgLang->formatNum( $height ) );
 229                                 } else {
 230                                         # Image is small enough to show full size on image page
 231                                         $msgbig = htmlspecialchars( $this->img->getName() );
 232                                         $msgsmall = wfMsgExt( 'file-nohires', array( 'parseinline' ) );
 233                                 }
 234
 235                                 $params['width'] = $width;
 236                                 $thumbnail = $this->img->transform( $params );
 237
 238                                 $anchorclose = "<br />";
 239                                 if( $this->img->mustRender() ) {
 240                                         $showLink = true;
 241                                 } else {
 242                                         $anchorclose .=
 243                                                 $msgsmall .
 244                                                 '<br />' . Xml::tags( 'a', $linkAttribs,  $msgbig ) . "$dirmark " . $longDesc;
 245                                 }
 246
 247                                 if ( $this->img->isMultipage() ) {
 248                                         $wgOut->addHTML( '<table class="multipageimage"><tr><td>' );
 249                                 }
 250
 251                                 if ( $thumbnail ) {
 252                                         $options = array(
 253                                                 'alt' => $this->img->getTitle()->getPrefixedText(),
 254                                                 'file-link' => true,
 255                                         );
 256                                         $wgOut->addHTML( '<div class="fullImageLink" id="file">' .
 257                                                 $thumbnail->toHtml( $options ) .
 258                                                 $anchorclose . '</div>' );
 259                                 }
 260
 261                                 if ( $this->img->isMultipage() ) {
 262                                         $count = $this->img->pageCount();
 263
 264                                         if ( $page > 1 ) {
 265                                                 $label = $wgOut->parse( wfMsg( 'imgmultipageprev' ), false );
 266                                                 $link = $sk->makeKnownLinkObj( $this->mTitle, $label, 'page='. ($page-1) );
 267                                                 $thumb1 = $sk->makeThumbLinkObj( $this->mTitle, $this->img, $link, $label, 'none',
 268                                                         array( 'page' => $page - 1 ) );
 269                                         } else {
 270                                                 $thumb1 = '';
 271                                         }
 272
 273                                         if ( $page < $count ) {
 274                                                 $label = wfMsg( 'imgmultipagenext' );
 275                                                 $link = $sk->makeKnownLinkObj( $this->mTitle, $label, 'page='. ($page+1) );
 276                                                 $thumb2 = $sk->makeThumbLinkObj( $this->mTitle, $this->img, $link, $label, 'none',
 277                                                         array( 'page' => $page + 1 ) );
 278                                         } else {
 279                                                 $thumb2 = '';
 280                                         }
 281
 282                                         global $wgScript;
 283                                         $select = '<form name="pageselector" action="' .
 284                                                 htmlspecialchars( $wgScript ) .
 285                                                 '" method="get" onchange="document.pageselector.submit();">' .
 286                                                 Xml::hidden( 'title', $this->getTitle()->getPrefixedDbKey() );
 287                                         $select .= $wgOut->parse( wfMsg( 'imgmultigotopre' ), false ) .
 288                                                 ' <select id="pageselector" name="page">';
 289                                         for ( $i=1; $i <= $count; $i++ ) {
 290                                                 $select .= Xml::option( $wgLang->formatNum( $i ), $i,
 291                                                         $i == $page );
 292                                         }
 293                                         $select .= '</select>' . $wgOut->parse( wfMsg( 'imgmultigotopost' ), false ) .
 294                                                 '<input type="submit" value="' .
 295                                                 htmlspecialchars( wfMsg( 'imgmultigo' ) ) . '"></form>';
 296
 297                                         $wgOut->addHTML( '</td><td><div class="multipageimagenavbox">' .
 298                                                 "$select<hr />$thumb1\n$thumb2<br clear=\"all\" /></div></td></tr></table>" );
 299                                 }
 300                         } else {
 301                                 #if direct link is allowed but it's not a renderable image, show an icon.
 302                                 if ($this->img->isSafeFile()) {
 303                                         $icon= $this->img->iconThumb();
 304
 305                                         $wgOut->addHTML( '<div class="fullImageLink" id="file">' .
 306                                         $icon->toHtml( array( 'desc-link' => true ) ) .
 307                                         '</div>' );
 308                                 }
 309
 310                                 $showLink = true;
 311                         }
 312
 313
 314                         if ($showLink) {
 315                                 $filename = wfEscapeWikiText( $this->img->getName() );
 316
 317                                 if (!$this->img->isSafeFile()) {
 318                                         $warning = wfMsgNoTrans( 'mediawarning' );
 319                                         $wgOut->addWikiText( <<<EOT
 320 <div class="fullMedia">
 321 <span class="dangerousLink">[[Media:$filename|$filename]]</span>$dirmark
 322 <span class="fileInfo"> $longDesc</span>
 323 </div>
 324
 325 <div class="mediaWarning">$warning</div>
 326 EOT
 327                                                 );
 328                                 } else {
 329                                         $wgOut->addWikiText( <<<EOT
 330 <div class="fullMedia">
 331 [[Media:$filename|$filename]]$dirmark <span class="fileInfo"> $longDesc</span>
 332 </div>
 333 EOT
 334                                                 );
 335                                 }
 336                         }
 337
 338                         if(!$this->img->isLocal()) {
 339                                 $this->printSharedImageText();
 340                         }
 341                 } else {
 342                         # Image does not exist
 343
 344                         $title = SpecialPage::getTitleFor( 'Upload' );
 345                         $link = $sk->makeKnownLinkObj($title, wfMsgHtml('noimage-linktext'),
 346                                 'wpDestFile=' . urlencode( $this->img->getName() ) );
 347                         $wgOut->addHTML( wfMsgWikiHtml( 'noimage', $link ) );
 348                 }
 349         }
 350
 351         /**
 352          * Show a notice that the file is from a shared repository
 353          */
 354         function printSharedImageText() {
 355                 global $wgOut, $wgUser;
 356
 357                 $descUrl = $this->img->getDescriptionUrl();
 358                 $descText = $this->img->getDescriptionText();
 359                 $s = "<div class='sharedUploadNotice'>" . wfMsgWikiHtml( 'sharedupload' );
 360                 if ( $descUrl ) {
 361                         $sk = $wgUser->getSkin();
 362                         $link = $sk->makeExternalLink( $descUrl, wfMsg( 'shareduploadwiki-linktext' ) );
 363                         $msg = ( $descText ) ? 'shareduploadwiki-desc' : 'shareduploadwiki';
 364                         $msg = wfMsgExt( $msg, array( 'parseinline', 'replaceafter' ), $link );
 365                         if ( $msg != '-' ) {
 366                                 # Show message only if not voided by local sysops
 367                                 $s .= $msg;
 368                         }
 369                 }
 370                 $s .= "</div>";
 371                 $wgOut->addHTML( $s );
 372
 373                 if ( $descText ) {
 374                         $this->mExtraDescription = $descText;
 375                 }
 376         }
 377
 378         function checkSharedConflict() {
 379                 global $wgOut, $wgUser;
 380                 $repoGroup = RepoGroup::singleton();
 381                 if( !$repoGroup->hasForeignRepos() ) {
 382                         return;
 383                 }
 384                 if( !$this->img->isLocal() ) {
 385                         return;
 386                 }
 387
 388                 $this->dupFile = null;
 389                 $repoGroup->forEachForeignRepo( array( $this, 'checkSharedConflictCallback' ) );
 390
 391                 if( !$this->dupFile )
 392                         return;
 393                 $dupfile = $this->dupFile;
 394                 $same = (
 395                         ($this->img->getSha1() == $dupfile->getSha1()) &&
 396                         ($this->img->getSize() == $dupfile->getSize())
 397                 );
 398
 399                 $sk = $wgUser->getSkin();
 400                 $descUrl = $dupfile->getDescriptionUrl();
 401                 if( $same ) {
 402                         $link = $sk->makeExternalLink( $descUrl, wfMsg( 'shareduploadduplicate-linktext' ) );
 403                         $wgOut->addHTML( '<div id="shared-image-dup">' . wfMsgWikiHtml( 'shareduploadduplicate', $link ) . '</div>' );
 404                 } else {
 405                         $link = $sk->makeExternalLink( $descUrl, wfMsg( 'shareduploadconflict-linktext' ) );
 406                         $wgOut->addHTML( '<div id="shared-image-conflict">' . wfMsgWikiHtml( 'shareduploadconflict', $link ) . '</div>' );
 407                 }
 408         }
 409
 410         function checkSharedConflictCallback( $repo ) {
 411                 $dupfile = $repo->newFile( $this->img->getTitle() );
 412                 if( $dupfile->exists() )
 413                         $this->dupFile = $dupfile;
 414                 return $dupfile->exists();
 415         }
 416
 417         function getUploadUrl() {
 418                 $uploadTitle = SpecialPage::getTitleFor( 'Upload' );
 419                 return $uploadTitle->getFullUrl( 'wpDestFile=' . urlencode( $this->img->getName() ) );
 420         }
 421
 422         /**
 423          * Print out the various links at the bottom of the image page, e.g. reupload,
 424          * external editing (and instructions link) etc.
 425          */
 426         function uploadLinksBox() {
 427                 global $wgUser, $wgOut;
 428
 429                 if( !$this->img->isLocal() )
 430                         return;
 431
 432                 $sk = $wgUser->getSkin();
 433
 434                 $wgOut->addHtml( '<br /><ul>' );
 435
 436                 # "Upload a new version of this file" link
 437                 if( UploadForm::userCanReUpload($wgUser,$this->img->name) ) {
 438                         $ulink = $sk->makeExternalLink( $this->getUploadUrl(), wfMsg( 'uploadnewversion-linktext' ) );
 439                         $wgOut->addHtml( "<li><div class='plainlinks'>{$ulink}</div></li>" );
 440                 }
 441
 442                 # Link to Special:FileDuplicateSearch
 443                 $dupeLink = $sk->makeKnownLinkObj( SpecialPage::getTitleFor( 'FileDuplicateSearch', $this->mTitle->getDBkey() ), wfMsgHtml( 'imagepage-searchdupe' ) );
 444                 $wgOut->addHtml( "<li>{$dupeLink}</li>" );
 445
 446                 # External editing link
 447                 $elink = $sk->makeKnownLinkObj( $this->mTitle, wfMsgHtml( 'edit-externally' ), 'action=edit&externaledit=true&mode=file' );
 448                 $wgOut->addHtml( '<li>' . $elink . '<div>' . wfMsgWikiHtml( 'edit-externally-help' ) . '</div></li>' );
 449
 450                 $wgOut->addHtml( '</ul>' );
 451         }
 452
 453         function closeShowImage()
 454         {
 455                 # For overloading
 456
 457         }
 458
 459         /**
 460          * If the page we've just displayed is in the "Image" namespace,
 461          * we follow it with an upload history of the image and its usage.
 462          */
 463         function imageHistory()
 464         {
 465                 global $wgUser, $wgOut, $wgUseExternalEditor;
 466
 467                 $sk = $wgUser->getSkin();
 468
 469                 if ( $this->img->exists() ) {
 470                         $list = new ImageHistoryList( $sk, $this->current );
 471                         $file = $this->current;
 472                         $dims = $file->getDimensionsString();
 473                         $s = $list->beginImageHistoryList() .
 474                                 $list->imageHistoryLine( true, $file );
 475                         // old image versions
 476                         $hist = $this->img->getHistory();
 477                         foreach( $hist as $file ) {
 478                                 $dims = $file->getDimensionsString();
 479                                 $s .= $list->imageHistoryLine( false, $file );
 480                         }
 481                         $s .= $list->endImageHistoryList();
 482                 } else { $s=''; }
 483                 $wgOut->addHTML( $s );
 484
 485                 $this->img->resetHistory();     // free db resources
 486
 487                 # Exist check because we don't want to show this on pages where an image
 488                 # doesn't exist along with the noimage message, that would suck. -ævar
 489                 if( $wgUseExternalEditor && $this->img->exists() ) {
 490                         $this->uploadLinksBox();
 491                 }
 492
 493         }
 494
 495         function imageLinks()
 496         {
 497                 global $wgUser, $wgOut;
 498
 499                 $wgOut->addHTML( Xml::element( 'h2', array( 'id' => 'filelinks' ), wfMsg( 'imagelinks' ) ) . "\n" );
 500
 501                 $dbr = wfGetDB( DB_SLAVE );
 502                 $page = $dbr->tableName( 'page' );
 503                 $imagelinks = $dbr->tableName( 'imagelinks' );
 504
 505                 $sql = "SELECT page_namespace,page_title FROM $imagelinks,$page WHERE il_to=" .
 506                   $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=page_id";
 507                 $sql = $dbr->limitResult($sql, 500, 0);
 508                 $res = $dbr->query( $sql, "ImagePage::imageLinks" );
 509
 510                 if ( 0 == $dbr->numRows( $res ) ) {
 511                         $wgOut->addHtml( '<p>' . wfMsg( "nolinkstoimage" ) . "</p>\n" );
 512                         return;
 513                 }
 514                 $wgOut->addHTML( '<p>' . wfMsg( 'linkstoimage' ) .  "</p>\n<ul>" );
 515
 516                 $sk = $wgUser->getSkin();
 517                 while ( $s = $dbr->fetchObject( $res ) ) {
 518                         $name = Title::MakeTitle( $s->page_namespace, $s->page_title );
 519                         $link = $sk->makeKnownLinkObj( $name, "" );
 520                         $wgOut->addHTML( "<li>{$link}</li>\n" );
 521                 }
 522                 $wgOut->addHTML( "</ul>\n" );
 523         }
 524
 525         /**
 526          * Delete the file, or an earlier version of it
 527          */
 528         public function delete() {
 529                 if( !$this->img->exists() || !$this->img->isLocal() ) {
 530                         // Standard article deletion
 531                         Article::delete();
 532                         return;
 533                 }
 534                 $deleter = new FileDeleteForm( $this->img );
 535                 $deleter->execute();
 536         }
 537
 538         /**
 539          * Revert the file to an earlier version
 540          */
 541         public function revert() {
 542                 $reverter = new FileRevertForm( $this->img );
 543                 $reverter->execute();
 544         }
 545
 546         /**
 547          * Override handling of action=purge
 548          */
 549         function doPurge() {
 550                 if( $this->img->exists() ) {
 551                         wfDebug( "ImagePage::doPurge purging " . $this->img->getName() . "\n" );
 552                         $update = new HTMLCacheUpdate( $this->mTitle, 'imagelinks' );
 553                         $update->doUpdate();
 554                         $this->img->upgradeRow();
 555                         $this->img->purgeCache();
 556                 } else {
 557                         wfDebug( "ImagePage::doPurge no image\n" );
 558                 }
 559                 parent::doPurge();
 560         }
 561
 562         /**
 563          * Display an error with a wikitext description
 564          */
 565         function showError( $description ) {
 566                 global $wgOut;
 567                 $wgOut->setPageTitle( wfMsg( "internalerror" ) );
 568                 $wgOut->setRobotpolicy( "noindex,nofollow" );
 569                 $wgOut->setArticleRelated( false );
 570                 $wgOut->enableClientCache( false );
 571                 $wgOut->addWikiText( $description );
 572         }
 573
 574 }
 575
 576 /**
 577  * Builds the image revision log shown on image pages
 578  *
 579  * @addtogroup Media
 580  */
 581 class ImageHistoryList {
 582
 583         protected $img, $skin, $title, $repo;
 584
 585         public function __construct( $skin, $img ) {
 586                 $this->skin = $skin;
 587                 $this->img = $img;
 588                 $this->title = $img->getTitle();
 589         }
 590
 591         public function beginImageHistoryList() {
 592                 global $wgOut, $wgUser;
 593                 $deleteColumn = $wgUser->isAllowed( 'delete' ) || $wgUser->isAllowed( 'deleterevision' );
 594                 return Xml::element( 'h2', array( 'id' => 'filehistory' ), wfMsg( 'filehist' ) )
 595                         . $wgOut->parse( wfMsgNoTrans( 'filehist-help' ) )
 596                         . Xml::openElement( 'table', array( 'class' => 'filehistory' ) ) . "\n"
 597                         . '<tr><td></td>'
 598                         . ( $this->img->isLocal() && $deleteColumn ? '<td></td>' : '' )
 599                         . '<th>' . wfMsgHtml( 'filehist-datetime' ) . '</th>'
 600                         . '<th>' . wfMsgHtml( 'filehist-user' ) . '</th>'
 601                         . '<th>' . wfMsgHtml( 'filehist-dimensions' ) . '</th>'
 602                         . '<th class="mw-imagepage-filesize">' . wfMsgHtml( 'filehist-filesize' ) . '</th>'
 603                         . '<th>' . wfMsgHtml( 'filehist-comment' ) . '</th>'
 604                         . "</tr>\n";
 605         }
 606
 607         public function endImageHistoryList() {
 608                 return "</table>\n";
 609         }
 610
 611         public function imageHistoryLine( $iscur, $file ) {
 612                 global $wgUser, $wgLang, $wgContLang, $wgTitle;
 613
 614                 $timestamp = wfTimestamp(TS_MW, $file->getTimestamp());
 615                 $img = $iscur ? $file->getName() : $file->getArchiveName();
 616                 $user = $file->getUser('id');
 617                 $usertext = $file->getUser('text');
 618                 $size = $file->getSize();
 619                 $description = $file->getDescription();
 620                 $dims = $file->getDimensionsString();
 621                 $sha1 = $file->getSha1();
 622
 623                 $local = $this->img->isLocal();
 624                 $row = '';
 625
 626                 // Deletion link
 627                 if( $local && ($wgUser->isAllowed('delete') || $wgUser->isAllowed('deleterevision') ) ) {
 628                         $row .= '<td>';
 629                         # Link to remove from history
 630                         if( $wgUser->isAllowed( 'delete' ) ) {
 631                                 $q = array();
 632                                 $q[] = 'action=delete';
 633                                 if( !$iscur )
 634                                         $q[] = 'oldimage=' . urlencode( $img );
 635                                 $row .= $this->skin->makeKnownLinkObj(
 636                                         $this->title,
 637                                         wfMsgHtml( $iscur ? 'filehist-deleteall' : 'filehist-deleteone' ),
 638                                         implode( '&', $q )
 639                                 );
 640                                 $row .= '<br/>';
 641                         }
 642                         # Link to hide content
 643                         if( $wgUser->isAllowed( 'deleterevision' ) ) {
 644                                 $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
 645                                 // If file is top revision or locked from this user, don't link
 646                                 if( $iscur || !$file->userCan(File::DELETED_RESTRICTED) ) {
 647                                         $del = wfMsgHtml( 'rev-delundel' );
 648                                 } else {
 649                                         // If the file was hidden, link to sha-1
 650                                         list($ts,$name) = explode('!',$img,2);
 651                                         $del = $this->skin->makeKnownLinkObj( $revdel,  wfMsg( 'rev-delundel' ),
 652                                                 'target=' . urlencode( $wgTitle->getPrefixedText() ) .
 653                                                 '&oldimage=' . urlencode( $ts ) );
 654                                         // Bolden oversighted content
 655                                         if( $file->isDeleted(File::DELETED_RESTRICTED) )
 656                                                 $del = "<strong>$del</strong>";
 657                                 }
 658                                 $row .= "<tt><small>$del</small></tt>";
 659                         }
 660                         $row .= '</td>';
 661                 }
 662
 663                 // Reversion link/current indicator
 664                 $row .= '<td>';
 665                 if( $iscur ) {
 666                         $row .= wfMsgHtml( 'filehist-current' );
 667                 } elseif( $local && $wgUser->isLoggedIn() && $this->title->userCan( 'edit' ) ) {
 668                         if( $file->isDeleted(File::DELETED_FILE) ) {
 669                                 $row .= wfMsgHtml('filehist-revert');
 670                         } else {
 671                                 $q = array();
 672                                 $q[] = 'action=revert';
 673                                 $q[] = 'oldimage=' . urlencode( $img );
 674                                 $q[] = 'wpEditToken=' . urlencode( $wgUser->editToken( $img ) );
 675                                 $row .= $this->skin->makeKnownLinkObj( $this->title,
 676                                         wfMsgHtml( 'filehist-revert' ),
 677                                         implode( '&', $q ) );
 678                         }
 679                 }
 680                 $row .= '</td>';
 681
 682                 // Date/time and image link
 683                 $row .= '<td>';
 684                 if( !$file->userCan(File::DELETED_FILE) ) {
 685                         # Don't link to unviewable files
 686                         $row .= '<span class="history-deleted">' . $wgLang->timeAndDate( $timestamp, true ) . '</span>';
 687                 } else if( $file->isDeleted(File::DELETED_FILE) ) {
 688                         $revdel = SpecialPage::getTitleFor( 'Revisiondelete' );
 689                         # Make a link to review the image
 690                         $url = $this->skin->makeKnownLinkObj( $revdel, $wgLang->timeAndDate( $timestamp, true ),
 691                                 "target=".$wgTitle->getPrefixedText()."&file=$sha1.".$this->img->getExtension() );
 692                         $row .= '<span class="history-deleted">'.$url.'</span>';
 693                 } else {
 694                         $url = $iscur ? $this->img->getUrl() : $this->img->getArchiveUrl( $img );
 695                         $row .= Xml::element( 'a',
 696                                 array( 'href' => $url ),
 697                                 $wgLang->timeAndDate( $timestamp, true ) );
 698                 }
 699
 700                 $row .= '</td>';
 701
 702                 // Uploading user
 703                 $row .= '<td>';
 704                 if( $local ) {
 705                         // Hide deleted usernames
 706                         if( $file->isDeleted(File::DELETED_USER) )
 707                                 $row .= '<span class="history-deleted">' . wfMsgHtml( 'rev-deleted-user' ) . '</span>';
 708                         else
 709                                 $row .= $this->skin->userLink( $user, $usertext ) .
 710                                         $this->skin->userToolLinks( $user, $usertext );
 711                 } else {
 712                         $row .= htmlspecialchars( $usertext );
 713                 }
 714                 $row .= '</td>';
 715
 716                 // Image dimensions
 717                 $row .= '<td>' . htmlspecialchars( $dims ) . '</td>';
 718
 719                 // File size
 720                 $row .= '<td class="mw-imagepage-filesize">' . $this->skin->formatSize( $size ) . '</td>';
 721
 722                 // Don't show deleted descriptions
 723                 if ( $file->isDeleted(File::DELETED_COMMENT) )
 724                         $row .= '<td><span class="history-deleted">' . wfMsgHtml('rev-deleted-comment') . '</span></td>';
 725                 else
 726                         $row .= '<td>' . $this->skin->commentBlock( $description, $this->title ) . '</td>';
 727
 728                 return "<tr>{$row}</tr>\n";
 729         }
 730 }