Remove debugging code
[lhc/web/wiklou.git] / includes / ImagePage.php
index 49251f1..7bdfe8c 100644 (file)
@@ -1,11 +1,20 @@
 <?php
+/**
+ * @package MediaWiki
+ */
 
-/*
-       Special handling for image description pages
-*/
+/**
+ *
+ */
+if( !defined( 'MEDIAWIKI' ) )
+       die();
 
 require_once( 'Image.php' );
 
+/**
+ * Special handling for image description pages
+ * @package MediaWiki
+ */
 class ImagePage extends Article {
 
        /* private */ var $img;  // Image object this page is shown for. Initilaized in openShowImage, not
@@ -31,12 +40,25 @@ class ImagePage extends Article {
 
        function openShowImage()
        {
-               global $wgOut, $wgUser, $wgRequest, $wgMaxImageWidth, $wgUseImageResize;
+               global $wgOut, $wgUser, $wgImageLimits, $wgRequest, 
+                      $wgUseImageResize, $wgRepositoryBaseUrl;
                $this->img  = Image::newFromTitle( $this->mTitle );
-               $url  = $this->img->getUrl();
+               $full_url  = $this->img->getViewURL();
                $anchoropen = '';
                $anchorclose = '';
 
+               if( $wgUser->getOption( 'imagesize' ) == '' ) {
+                       $sizeSel = User::getDefaultOption( 'imagesize' );
+               } else {
+                       $sizeSel = IntVal( $wgUser->getOption( 'imagesize' ) );
+               }
+               if( !isset( $wgImageLimits[$sizeSel] ) ) {
+                       $sizeSel = User::getDefaultOption( 'imagesize' );
+               }
+               $max = $wgImageLimits[$sizeSel];
+               $maxWidth = $max[0];
+               $maxHeight = $max[1];
+
 
                if ( $this->img->exists() ) {
 
@@ -46,20 +68,54 @@ class ImagePage extends Article {
                                # image
                                $width = $this->img->getWidth();
                                $height = $this->img->getHeight();
-                               if ( $width > $wgMaxImageWidth && $wgUseImageResize ) {
-                                       $anchoropen  = "<a href=\"{$url}\">";
-                                       $anchorclose = '</a>';
-                                       $url=$this->img->createThumb( $wgMaxImageWidth );
-                                       $height = floor( $height * $wgMaxImageWidth / $width );
-                                       $width  = $wgMaxImageWidth;
+                               $msg = wfMsg('showbigimage', $width, $height, intval( $this->img->getSize()/1024 ) );
+                               if ( $width > $maxWidth ) {
+                                       $height = floor( $height * $maxWidth / $width );
+                                       $width  = $maxWidth;
+                               } 
+                               if ( $height > $maxHeight ) {
+                                       $width = floor( $width * $maxHeight / $height );
+                                       $height = $maxHeight;
+                               }
+                               if ( $width != $this->img->getWidth() || $height != $this->img->getHeight() ) {
+                                       if( $wgUseImageResize ) {
+                                               $thumbnail = $this->img->getThumbnail( $width );
+
+                                               if (    ( ! $this->img->mustRender() )
+                                                    && ( $thumbnail->getSize() > $this->img->getSize() ) ) {
+                                                       # the thumbnail is bigger thatn the original image.
+                                                       # show the original image instead of the thumb.
+                                                       $url = $full_url;
+                                                       $width = $this->img->getWidth();
+                                                       $height = $this->img->getHeight();
+                                               } else {
+                                                       $url = $thumbnail->getUrl();
+                                               }
+                                       } else {
+                                               # No resize ability? Show the full image, but scale
+                                               # it down in the browser so it fits on the page.
+                                               $url = $full_url;
+                                       }
+                                       $anchoropen  = "<a href=\"{$full_url}\">";
+                                       $anchorclose = "<br />{$msg}</a>";
+                               } else {
+                                       $url = $full_url;
                                }
-                               $s = "<div class=\"fullImage\">" . $anchoropen .
+                               $s = '<div class="fullImageLink">' . $anchoropen .
                                     "<img border=\"0\" src=\"{$url}\" width=\"{$width}\" height=\"{$height}\" alt=\"" .
-                                    $wgRequest->getVal( 'image' )."\" />" . $anchorclose . "</div>";
+                                    htmlspecialchars( $wgRequest->getVal( 'image' ) ).'" />' . $anchorclose . '</div>';
                        } else {
-                               $s = "<div class=\"fullMedia\">".$sk->makeMediaLink($this->img->getName(),"")."</div>";
+                               $s = "<div class=\"fullMedia\">" . $sk->makeMediaLink( $this->img->getName(),'' ) . '</div>';
                        }
                        $wgOut->addHTML( $s );
+                       if($this->img->fromSharedDirectory) {
+                               $sharedtext="<div class=\"sharedUploadNotice\">" . wfMsg("sharedupload");
+                               if($wgRepositoryBaseUrl) {
+                                       $sharedtext .= " ". wfMsg("shareduploadwiki",$wgRepositoryBaseUrl . urlencode($this->mTitle->getDBkey()));
+                               }
+                               $sharedtext.="</div>";
+                               $wgOut->addWikiText($sharedtext);
+                       }
                }
        }
        
@@ -68,9 +124,10 @@ class ImagePage extends Article {
                # For overloading
        }
 
-       # If the page we've just displayed is in the "Image" namespace,
-       # we follow it with an upload history of the image and its usage.
-
+       /**
+        * If the page we've just displayed is in the "Image" namespace,
+        * we follow it with an upload history of the image and its usage.
+        */
        function imageHistory()
        {
                global $wgUser, $wgOut;
@@ -80,17 +137,18 @@ class ImagePage extends Article {
                $line = $this->img->nextHistoryLine();
 
                if ( $line ) {
-                       $s = $sk->beginImageHistoryList() .
-                               $sk->imageHistoryLine( true, $line->img_timestamp,
+                       $list =& new ImageHistoryList( $sk );
+                       $s = $list->beginImageHistoryList() .
+                               $list->imageHistoryLine( true, $line->img_timestamp,
                                        $this->mTitle->getDBkey(),  $line->img_user,
                                        $line->img_user_text, $line->img_size, $line->img_description );
 
                        while ( $line = $this->img->nextHistoryLine() ) {
-                               $s .= $sk->imageHistoryLine( false, $line->img_timestamp,
+                               $s .= $list->imageHistoryLine( false, $line->img_timestamp,
                                $line->oi_archive_name, $line->img_user,
                                $line->img_user_text, $line->img_size, $line->img_description );
                        }
-                       $s .= $sk->endImageHistoryList();
+                       $s .= $list->endImageHistoryList();
                } else { $s=''; }
                $wgOut->addHTML( $s );
        }
@@ -102,11 +160,12 @@ class ImagePage extends Article {
                $wgOut->addHTML( '<h2>' . wfMsg( 'imagelinks' ) . "</h2>\n" );
 
                $dbr =& wfGetDB( DB_SLAVE );
-               $cur = $dbr->tableName( 'cur' );
+               $page = $dbr->tableName( 'page' );
                $imagelinks = $dbr->tableName( 'imagelinks' );
                
-               $sql = "SELECT cur_namespace,cur_title FROM $imagelinks,$cur WHERE il_to=" .
-                 $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=cur_id";
+               $sql = "SELECT page_namespace,page_title FROM $imagelinks,$page WHERE il_to=" .
+                 $dbr->addQuotes( $this->mTitle->getDBkey() ) . " AND il_from=page_id"
+                 . " LIMIT 500"; # quickie emergency brake
                $res = $dbr->query( $sql, DB_SLAVE, "Article::imageLinks" );
 
                if ( 0 == $dbr->numRows( $res ) ) {
@@ -117,7 +176,7 @@ class ImagePage extends Article {
 
                $sk = $wgUser->getSkin();
                while ( $s = $dbr->fetchObject( $res ) ) {
-                       $name = Title::MakeTitle( $s->cur_namespace, $s->cur_title );
+                       $name = Title::MakeTitle( $s->page_namespace, $s->page_title );
                        $link = $sk->makeKnownLinkObj( $name, "" );
                        $wgOut->addHTML( "<li>{$link}</li>\n" );
                }
@@ -134,7 +193,7 @@ class ImagePage extends Article {
                
                # Only sysops can delete images. Previously ordinary users could delete 
                # old revisions, but this is no longer the case.
-               if ( !$wgUser->isSysop() ) {
+               if ( !$wgUser->isAllowed('delete') ) {
                        $wgOut->sysopRequired();
                        return;
                }
@@ -145,11 +204,10 @@ class ImagePage extends Article {
 
                # Better double-check that it hasn't been deleted yet!
                $wgOut->setPagetitle( wfMsg( 'confirmdelete' ) );
-               if ( !is_null( $image ) ) {
-                       if ( '' == trim( $image ) ) {
-                               $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
-                               return;
-                       }
+               if ( ( !is_null( $image ) )
+                 && ( '' == trim( $image ) ) ) {
+                       $wgOut->fatalError( wfMsg( 'cannotdelete' ) );
+                       return;
                }
                
                # Deleting old images doesn't require confirmation
@@ -170,7 +228,7 @@ class ImagePage extends Article {
 
        function doDelete()
        {
-               global $wgOut, $wgUser, $wgLang, $wgRequest;
+               global $wgOut, $wgUser, $wgContLang, $wgRequest;
                global $wgUseSquid, $wgInternalServer, $wgDeferredUpdateList;
                $fname = 'ImagePage::doDelete';
 
@@ -197,8 +255,13 @@ class ImagePage extends Article {
                        }
                        $dest = wfImageDir( $image );
                        $archive = wfImageDir( $image );
-                       if ( ! @unlink( "{$dest}/{$image}" ) ) {
-                               $wgOut->fileDeleteError( "{$dest}/{$image}" );
+                       
+                       # Delete the image file if it exists; due to sync problems
+                       # or manual trimming sometimes the file will be missing.
+                       $targetFile = "{$dest}/{$image}";
+                       if( file_exists( $targetFile ) && ! @unlink( $targetFile ) ) {
+                               # If the deletion operation actually failed, bug out:
+                               $wgOut->fileDeleteError( $targetFile );
                                return;
                        }
                        $dbw->delete( 'image', array( 'img_name' => $image ) );
@@ -231,7 +294,7 @@ class ImagePage extends Article {
                        # Image itself is now gone, and database is cleaned.
                        # Now we remove the image description page.
 
-                       $nt = Title::newFromText( $wgLang->getNsText( Namespace::getImage() ) . ":" . $image );
+                       $nt = Title::newFromText( $wgContLang->getNsText( Namespace::getImage() ) . ":" . $image );
                        $article = new Article( $nt );
                        $article->doDeleteArticle( $reason ); # ignore errors
 
@@ -242,7 +305,7 @@ class ImagePage extends Article {
                $wgOut->setRobotpolicy( 'noindex,nofollow' );
 
                $sk = $wgUser->getSkin();
-               $loglink = $sk->makeKnownLink( $wgLang->getNsText(
+               $loglink = $sk->makeKnownLink( $wgContLang->getNsText(
                  Namespace::getWikipedia() ) .
                  ':' . wfMsg( 'dellogpage' ), wfMsg( 'deletionlog' ) );
 
@@ -258,7 +321,17 @@ class ImagePage extends Article {
 
                $name = substr( $oldimage, 15 );
                $archive = wfImageArchiveDir( $name );
-               if ( ! @unlink( "{$archive}/{$oldimage}" ) ) {
+               
+               # Delete the image if it exists. Sometimes the file will be missing
+               # due to manual intervention or weird sync problems; treat that
+               # condition gracefully and continue to delete the database entry.
+               # Also some records may end up with an empty oi_archive_name field
+               # if the original file was missing when a new upload was made;
+               # don't try to delete the directory then!
+               #
+               $targetFile = "{$archive}/{$oldimage}";
+               if( $oldimage != '' && file_exists( $targetFile ) && !@unlink( $targetFile ) ) {
+                       # If we actually have a file and can't delete it, throw an error.
                        $wgOut->fileDeleteError( "{$archive}/{$oldimage}" );
                } else {
                        # Log the deletion
@@ -273,11 +346,15 @@ class ImagePage extends Article {
                global $wgUseSquid, $wgInternalServer, $wgDeferredUpdateList;
 
                $oldimage = $wgRequest->getText( 'oldimage' );
-               
                if ( strlen( $oldimage ) < 16 ) {
-                       $wgOut->unexpectedValueError( 'oldimage', $oldimage );
+                       $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
+                       return;
+               }
+               if ( strstr( $oldimage, "/" ) || strstr( $oldimage, "\\" ) ) {
+                       $wgOut->unexpectedValueError( 'oldimage', htmlspecialchars($oldimage) );
                        return;
                }
+
                if ( wfReadOnly() ) {
                        $wgOut->readOnlyPage();
                        return;
@@ -293,13 +370,13 @@ class ImagePage extends Article {
                $curfile = "{$dest}/{$name}";
 
                if ( ! is_file( $curfile ) ) {
-                       $wgOut->fileNotFoundError( $curfile );
+                       $wgOut->fileNotFoundError( htmlspecialchars( $curfile ) );
                        return;
                }
                $oldver = wfTimestampNow() . "!{$name}";
                
                $dbr =& wfGetDB( DB_SLAVE );
-               $size = $dbr->getField( 'oldimage', 'oi_size', 'oi_archive_name=\'' .
+               $size = $dbr->selectField( 'oldimage', 'oi_size', 'oi_archive_name=\'' .
                  $dbr->strencode( $oldimage ) . "'" );
 
                if ( ! rename( $curfile, "${archive}/{$oldver}" ) ) {
@@ -326,5 +403,79 @@ class ImagePage extends Article {
        }
 }
 
+class ImageHistoryList {
+       function ImageHistoryList( &$skin ) {
+               $this->skin =& $skin;
+       }
+       
+       function beginImageHistoryList() {
+               $s = "\n<h2>" . wfMsg( 'imghistory' ) . "</h2>\n" .
+                 "<p>" . wfMsg( 'imghistlegend' ) . "</p>\n".'<ul class="special">';
+               return $s;
+       }
+
+       function endImageHistoryList() {
+               $s = "</ul>\n";
+               return $s;
+       }
+
+       function imageHistoryLine( $iscur, $timestamp, $img, $user, $usertext, $size, $description ) {
+               global $wgUser, $wgLang, $wgContLang, $wgTitle;
+
+               $datetime = $wgLang->timeanddate( $timestamp, true );
+               $del = wfMsg( 'deleteimg' );
+               $delall = wfMsg( 'deleteimgcompletely' );
+               $cur = wfMsg( 'cur' );
+
+               if ( $iscur ) {
+                       $url = Image::wfImageUrl( $img );
+                       $rlink = $cur;
+                       if ( $wgUser->isAllowed('delete') ) {
+                               $link = $wgTitle->escapeLocalURL( 'image=' . $wgTitle->getPartialURL() .
+                                 '&action=delete' );
+                               $style = $this->skin->getInternalLinkAttributes( $link, $delall );
+
+                               $dlink = '<a href="'.$link.'"'.$style.'>'.$delall.'</a>';
+                       } else {
+                               $dlink = $del;
+                       }
+               } else {
+                       $url = htmlspecialchars( wfImageArchiveUrl( $img ) );
+                       if( $wgUser->getID() != 0 && $wgTitle->userCanEdit() ) {
+                               $rlink = $this->skin->makeKnownLink( $wgTitle->getPrefixedText(),
+                                          wfMsg( 'revertimg' ), 'action=revert&oldimage=' .
+                                          urlencode( $img ) );
+                               $dlink = $this->skin->makeKnownLink( $wgTitle->getPrefixedText(),
+                                          $del, 'action=delete&oldimage=' . urlencode( $img ) );
+                       } else {
+                               # Having live active links for non-logged in users
+                               # means that bots and spiders crawling our site can
+                               # inadvertently change content. Baaaad idea.
+                               $rlink = wfMsg( 'revertimg' );
+                               $dlink = $del;
+                       }
+               }
+               if ( 0 == $user ) {
+                       $userlink = $usertext;
+               } else {
+                       $userlink = $this->skin->makeLink( $wgContLang->getNsText( Namespace::getUser() ) .
+                                      ':'.$usertext, $usertext );
+               }
+               $nbytes = wfMsg( 'nbytes', $size );
+               $style = $this->skin->getInternalLinkAttributes( $url, $datetime );
+
+               $s = "<li> ({$dlink}) ({$rlink}) <a href=\"{$url}\"{$style}>{$datetime}</a>"
+                 . " . . {$userlink} ({$nbytes})";
+
+               if ( '' != $description && '*' != $description ) {
+                       $sk=$wgUser->getSkin();
+                       $s .= $wgContLang->emphasize(' (' . $sk->formatComment($description,$wgTitle) . ')');
+               }
+               $s .= "</li>\n";
+               return $s;
+       }
+
+}
+
 
 ?>