profiling
[lhc/web/wiklou.git] / includes / SpecialUpload.php
index f14eecc..af4070a 100644 (file)
@@ -1,14 +1,10 @@
 <?php
 /**
  *
- * @package MediaWiki
- * @subpackage SpecialPage
+ * @addtogroup SpecialPage
  */
 
-/**
- *
- */
-require_once 'Image.php';
+
 /**
  * Entry point
  */
@@ -20,8 +16,7 @@ function wfSpecialUpload() {
 
 /**
  *
- * @package MediaWiki
- * @subpackage SpecialPage
+ * @addtogroup SpecialPage
  */
 class UploadForm {
        /**#@+
@@ -31,6 +26,13 @@ class UploadForm {
        var $mUploadSaveName, $mUploadTempName, $mUploadSize, $mUploadOldVersion;
        var $mUploadCopyStatus, $mUploadSource, $mReUpload, $mAction, $mUpload;
        var $mOname, $mSessionKey, $mStashed, $mDestFile, $mRemoveTempFile, $mSourceType;
+       var $mUploadTempFileSize = 0;
+
+       # Placeholders for text injection by hooks (must be HTML)
+       # extensions should take care to _append_ to the present value
+       var $uploadFormTextTop;
+       var $uploadFormTextAfterSummary;
+
        /**#@-*/
 
        /**
@@ -47,6 +49,10 @@ class UploadForm {
                        return;
                }
 
+               # Placeholders for text injection by hooks (empty per default)
+               $this->uploadFormTextTop = "";
+               $this->uploadFormTextAfterSummary = "";
+
                $this->mIgnoreWarning     = $request->getCheck( 'wpIgnoreWarning' );
                $this->mReUpload          = $request->getCheck( 'wpReUpload' );
                $this->mUpload            = $request->getCheck( 'wpUpload' );
@@ -56,7 +62,7 @@ class UploadForm {
                $this->mUploadCopyStatus  = $request->getText( 'wpUploadCopyStatus' );
                $this->mUploadSource      = $request->getText( 'wpUploadSource' );
                $this->mWatchthis         = $request->getBool( 'wpWatchthis' );
-               $this->mSourceType         = $request->getBool( 'wpSourceType' );
+               $this->mSourceType         = $request->getText( 'wpSourceType' );
                wfDebug( "UploadForm: watchthis is: '$this->mWatchthis'\n" );
 
                $this->mAction            = $request->getVal( 'action' );
@@ -82,9 +88,9 @@ class UploadForm {
                         *Check for a newly uploaded file.
                         */
                        if( $wgAllowCopyUploads && $this->mSourceType == 'web' ) {
-                               $this->initialize_web_file( $request );
+                               $this->initializeFromUrl( $request );
                        } else {
-                               $this->initialize_php_file( $request );
+                               $this->initializeFromUpload( $request );
                        }
                }
        }
@@ -93,7 +99,7 @@ class UploadForm {
         * Initialize the uploaded file from PHP data
         * @access private
         */
-       function initialize_php_file( &$request ) {
+       function initializeFromUpload( $request ) {
                $this->mUploadTempName = $request->getFileTempName( 'wpUploadFile' );
                $this->mUploadSize     = $request->getFileSize( 'wpUploadFile' );
                $this->mOname          = $request->getFileName( 'wpUploadFile' );
@@ -107,23 +113,92 @@ class UploadForm {
         * Copy a web file to a temporary file
         * @access private
         */
-       function initialize_web_file( &$request ) {
+       function initializeFromUrl( $request ) {
                global $wgTmpDirectory;
-               $url = $request->getText( 'wpUploadFile' );
+               $url = $request->getText( 'wpUploadFileURL' );
                $local_file = tempnam( $wgTmpDirectory, 'WEBUPLOAD' );
 
-               # Maybe check for filesize($url) first?
-               $error = !@copy( $url, $local_file );
-               
                $this->mUploadTempName = $local_file;
-               $this->mUploadSize     = filesize( $local_file );
+               $this->mUploadError    = $this->curlCopy( $url, $local_file );
+               $this->mUploadSize     = $this->mUploadTempFileSize;
                $this->mOname          = array_pop( explode( '/', $url ) );
-               $this->mUploadError    = $error;
                $this->mSessionKey     = false;
                $this->mStashed        = false;
-               $this->mRemoveTempFile = false; // PHP will *not* handle this
+
+               // PHP won't auto-cleanup the file
+               $this->mRemoveTempFile = file_exists( $local_file );
        }
-       
+
+       /**
+        * Safe copy from URL
+        * Returns true if there was an error, false otherwise
+        */
+       private function curlCopy( $url, $dest ) {
+               global $wgUser, $wgOut;
+
+               if( !$wgUser->isAllowed( 'upload_by_url' ) ) {
+                       $wgOut->permissionRequired( 'upload_by_url' );
+                       return true;
+               }
+
+               # Maybe remove some pasting blanks :-)
+               $url =  trim( $url );
+               if( stripos($url, 'http://') !== 0 && stripos($url, 'ftp://') !== 0 ) {
+                       # Only HTTP or FTP URLs
+                       $wgOut->errorPage( 'upload-proto-error', 'upload-proto-error-text' );
+                       return true;
+               }
+
+               # Open temporary file
+               $this->mUploadTempFile = @fopen( $this->mUploadTempName, "wb" );
+               if( $this->mUploadTempFile === false ) {
+                       # Could not open temporary file to write in
+                       $wgOut->errorPage( 'upload-file-error', 'upload-file-error-text');
+                       return true;
+               }
+
+               $ch = curl_init();
+               curl_setopt( $ch, CURLOPT_HTTP_VERSION, 1.0); # Probably not needed, but apparently can work around some bug
+               curl_setopt( $ch, CURLOPT_TIMEOUT, 10); # 10 seconds timeout
+               curl_setopt( $ch, CURLOPT_LOW_SPEED_LIMIT, 512); # 0.5KB per second minimum transfer speed
+               curl_setopt( $ch, CURLOPT_URL, $url);
+               curl_setopt( $ch, CURLOPT_WRITEFUNCTION, array( $this, 'uploadCurlCallback' ) );
+               curl_exec( $ch );
+               $error = curl_errno( $ch ) ? true : false;
+               $errornum =  curl_errno( $ch );
+               // if ( $error ) print curl_error ( $ch ) ; # Debugging output
+               curl_close( $ch );
+
+               fclose( $this->mUploadTempFile );
+               unset( $this->mUploadTempFile );
+               if( $error ) {
+                       unlink( $dest );
+                       if( wfEmptyMsg( "upload-curl-error$errornum", wfMsg("upload-curl-error$errornum") ) )
+                               $wgOut->errorPage( 'upload-misc-error', 'upload-misc-error-text' );
+                       else
+                               $wgOut->errorPage( "upload-curl-error$errornum", "upload-curl-error$errornum-text" );
+               }
+
+               return $error;
+       }
+
+       /**
+        * Callback function for CURL-based web transfer
+        * Write data to file unless we've passed the length limit;
+        * if so, abort immediately.
+        * @access private
+        */
+       function uploadCurlCallback( $ch, $data ) {
+               global $wgMaxUploadSize;
+               $length = strlen( $data );
+               $this->mUploadTempFileSize += $length;
+               if( $this->mUploadTempFileSize > $wgMaxUploadSize ) {
+                       return 0;
+               }
+               fwrite( $this->mUploadTempFile, $data );
+               return $length;
+       }
+
        /**
         * Start doing stuff
         * @access public
@@ -139,13 +214,12 @@ class UploadForm {
                }
 
                # Check permissions
-               if( $wgUser->isLoggedIn() ) {
-                       if( !$wgUser->isAllowed( 'upload' ) ) {
+               if( !$wgUser->isAllowed( 'upload' ) ) {
+                       if( !$wgUser->isLoggedIn() ) {
+                               $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
+                       } else {
                                $wgOut->permissionRequired( 'upload' );
-                               return;
                        }
-               } else {
-                       $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
                        return;
                }
 
@@ -190,6 +264,12 @@ class UploadForm {
        function processUpload() {
                global $wgUser, $wgOut;
 
+               if( !wfRunHooks( 'UploadForm:BeforeProcessing', array( &$this ) ) )
+               {
+                       wfDebug( "Hook 'UploadForm:BeforeProcessing' broke processing the file." );
+                       return false;
+               }
+
                /* Check for PHP error if any, requires php 4.2 or newer */
                if( $this->mUploadError == 1/*UPLOAD_ERR_INI_SIZE*/ ) {
                        $this->mainUploadForm( wfMsgHtml( 'largefileserver' ) );
@@ -216,13 +296,12 @@ class UploadForm {
                 * only the final one for the whitelist.
                 */
                list( $partname, $ext ) = $this->splitExtensions( $basename );
-               
+
                if( count( $ext ) ) {
                        $finalExt = $ext[count( $ext ) - 1];
                } else {
                        $finalExt = '';
                }
-               $fullExt = implode( '.', $ext );
 
                # If there was more than one "extension", reassemble the base
                # filename to prevent bogus complaints about length
@@ -253,7 +332,7 @@ class UploadForm {
                 * If the image is protected, non-sysop users won't be able
                 * to modify it by uploading a new revision.
                 */
-               if( !$nt->userCanEdit() ) {
+               if( !$nt->userCan( 'edit' ) ) {
                        return $this->uploadError( wfMsgWikiHtml( 'protectedpage' ) );
                }
 
@@ -268,10 +347,12 @@ class UploadForm {
                /* Don't allow users to override the blacklist (check file extension) */
                global $wgStrictFileExtensions;
                global $wgFileExtensions, $wgFileBlacklist;
-               if( $this->checkFileExtensionList( $ext, $wgFileBlacklist ) ||
-                       ($wgStrictFileExtensions &&
-                               !$this->checkFileExtension( $finalExt, $wgFileExtensions ) ) ) {
-                       return $this->uploadError( wfMsgHtml( 'badfiletype', htmlspecialchars( $fullExt ) ) );
+               if ($finalExt == '') {
+                       return $this->uploadError( wfMsgExt( 'filetype-missing', array ( 'parseinline' ) ) );
+               } elseif ( $this->checkFileExtensionList( $ext, $wgFileBlacklist ) ||
+                               ($wgStrictFileExtensions &&
+                                       !$this->checkFileExtension( $finalExt, $wgFileExtensions ) ) ) {
+                       return $this->uploadError( wfMsgExt( 'filetype-badtype', array ( 'parseinline' ), htmlspecialchars( $finalExt ), implode ( ', ', $wgFileExtensions ) ) );
                }
 
                /**
@@ -314,35 +395,88 @@ class UploadForm {
                        global $wgCheckFileExtensions;
                        if ( $wgCheckFileExtensions ) {
                                if ( ! $this->checkFileExtension( $finalExt, $wgFileExtensions ) ) {
-                                       $warning .= '<li>'.wfMsgHtml( 'badfiletype', htmlspecialchars( $fullExt ) ).'</li>';
+                                       $warning .= '<li>'.wfMsgExt( 'filetype-badtype', array ( 'parseinline' ), htmlspecialchars( $finalExt ), implode ( ', ', $wgFileExtensions ) ).'</li>';
                                }
                        }
 
                        global $wgUploadSizeWarning;
                        if ( $wgUploadSizeWarning && ( $this->mUploadSize > $wgUploadSizeWarning ) ) {
-                               # TODO: Format $wgUploadSizeWarning to something that looks better than the raw byte
-                               # value, perhaps add GB,MB and KB suffixes?
-                               $warning .= '<li>'.wfMsgHtml( 'largefile', $wgUploadSizeWarning, $this->mUploadSize ).'</li>';
+                               $skin = $wgUser->getSkin();
+                               $wsize = $skin->formatSize( $wgUploadSizeWarning );
+                               $asize = $skin->formatSize( $this->mUploadSize );
+                               $warning .= '<li>' . wfMsgHtml( 'large-file', $wsize, $asize ) . '</li>';
                        }
                        if ( $this->mUploadSize == 0 ) {
                                $warning .= '<li>'.wfMsgHtml( 'emptyfile' ).'</li>';
                        }
 
-                       if( $nt->getArticleID() ) {
-                               global $wgUser;
-                               $sk = $wgUser->getSkin();
+                       global $wgUser;
+                       $sk = $wgUser->getSkin();
+                       $image = new Image( $nt );
+
+                       // Check for uppercase extension. We allow these filenames but check if an image
+                       // with lowercase extension exists already
+                       if ( $finalExt != strtolower( $finalExt ) ) {
+                               $nt_lc = Title::newFromText( $partname . '.' . strtolower( $finalExt ) );
+                               $image_lc = new Image( $nt_lc );
+                       }
+
+                       if( $image->exists() ) {
                                $dlink = $sk->makeKnownLinkObj( $nt );
-                               $warning .= '<li>'.wfMsgHtml( 'fileexists', $dlink ).'</li>';
-                       } else {
+                               if ( $image->allowInlineDisplay() ) {
+                                       $dlink2 = $sk->makeImageLinkObj( $nt, wfMsgExt( 'fileexists-thumb', 'parseinline', $dlink ), $nt->getText(), 'right', false, false, false, true );
+                               } elseif ( !$image->allowInlineDisplay() && $image->isSafeFile() ) {
+                                       $icon = $image->iconThumb();
+                                       $dlink2 = '<div style="float:right" id="mw-media-icon"><a href="' . $image->getURL() . '">' . $icon->toHtml() . '</a><br />' . $dlink . '</div>';
+                               } else {
+                                       $dlink2 = '';
+                               }
+
+                               $warning .= '<li>' . wfMsgExt( 'fileexists', 'parseline', $dlink ) . '</li>' . $dlink2;
+
+                       } elseif ( isset( $image_lc) && $image_lc->exists() ) {
+                               # Check if image with lowercase extension exists.
+                               # It's not forbidden but in 99% it makes no sense to upload the same filename with uppercase extension
+                               $dlink = $sk->makeKnownLinkObj( $nt_lc );
+                               if ( $image_lc->allowInlineDisplay() ) {
+                                       $dlink2 = $sk->makeImageLinkObj( $nt_lc, wfMsgExt( 'fileexists-thumb', 'parseinline', $dlink ), $nt_lc->getText(), 'right', false, false, false, true );
+                               } elseif ( !$image_lc->allowInlineDisplay() && $image_lc->isSafeFile() ) {
+                                       $icon = $image_lc->iconThumb();
+                                       $dlink2 = '<div style="float:right" id="mw-media-icon"><a href="' . $image_lc->getURL() . '">' . $icon->toHtml() . '</a><br />' . $dlink . '</div>';
+                               } else {
+                                       $dlink2 = '';
+                               }
+
+                               $warning .= '<li>' . wfMsgExt( 'fileexists-extension', 'parsemag' , $partname . '.' . $finalExt , $dlink ) . '</li>' . $dlink2;                         
+
+                       } elseif ( ( substr( $partname , 3, 3 ) == 'px-' || substr( $partname , 2, 3 ) == 'px-' ) && ereg( "[0-9]{2}" , substr( $partname , 0, 2) ) ) {
+                               # Check for filenames like 50px- or 180px-, these are mostly thumbnails
+                               $nt_thb = Title::newFromText( substr( $partname , strpos( $partname , '-' ) +1 ) . '.' . $finalExt );
+                               $image_thb = new Image( $nt_thb );
+                               if ($image_thb->exists() ) {
+                                       # Check if an image without leading '180px-' (or similiar) exists
+                                       $dlink = $sk->makeKnownLinkObj( $nt_thb);
+                                       if ( $image_thb->allowInlineDisplay() ) {
+                                               $dlink2 = $sk->makeImageLinkObj( $nt_thb, wfMsgExt( 'fileexists-thumb', 'parseinline', $dlink ), $nt_thb->getText(), 'right', false, false, false, true );
+                                       } elseif ( !$image_thb->allowInlineDisplay() && $image_thb->isSafeFile() ) {
+                                               $icon = $image_thb->iconThumb();
+                                               $dlink2 = '<div style="float:right" id="mw-media-icon"><a href="' . $image_thb->getURL() . '">' . $icon->toHtml() . '</a><br />' . $dlink . '</div>';
+                                       } else {
+                                               $dlink2 = '';
+                                       }
+
+                                       $warning .= '<li>' . wfMsgExt( 'fileexists-thumbnail-yes', 'parsemag', $dlink ) . '</li>' . $dlink2;    
+                               } else {
+                                       # Image w/o '180px-' does not exists, but we do not like these filenames
+                                       $warning .= '<li>' . wfMsgExt( 'file-thumbnail-no', 'parseinline' , substr( $partname , 0, strpos( $partname , '-' ) +1 ) ) . '</li>';
+                               }
+                       }
+                       if ( $image->wasDeleted() ) {
                                # If the file existed before and was deleted, warn the user of this
                                # Don't bother doing so if the image exists now, however
-                               $image = new Image( $nt );
-                               if( $image->wasDeleted() ) {
-                                       $skin = $wgUser->getSkin();
-                                       $ltitle = Title::makeTitle( NS_SPECIAL, 'Log' );
-                                       $llink = $skin->makeKnownLinkObj( $ltitle, wfMsgHtml( 'deletionlog' ), 'type=delete&page=' . $nt->getPrefixedUrl() );
-                                       $warning .= wfOpenElement( 'li' ) . wfMsgWikiHtml( 'filewasdeleted', $llink ) . wfCloseElement( 'li' );
-                               }
+                               $ltitle = SpecialPage::getTitleFor( 'Log' );
+                               $llink = $sk->makeKnownLinkObj( $ltitle, wfMsgHtml( 'deletionlog' ), 'type=delete&page=' . $nt->getPrefixedUrl() );
+                               $warning .= wfOpenElement( 'li' ) . wfMsgWikiHtml( 'filewasdeleted', $llink ) . wfCloseElement( 'li' );
                        }
 
                        if( $warning != '' ) {
@@ -399,7 +533,7 @@ class UploadForm {
         */
        function saveUploadedFile( $saveName, $tempName, $useRename = false ) {
                global $wgOut, $wgAllowCopyUploads;
-               
+
                if ( !$useRename AND $wgAllowCopyUploads AND $this->mSourceType == 'web' ) $useRename = true;
 
                $fname= "SpecialUpload::saveUploadedFile";
@@ -408,7 +542,7 @@ class UploadForm {
                $archive = wfImageArchiveDir( $saveName );
                if ( !is_dir( $dest ) ) wfMkdirParents( $dest );
                if ( !is_dir( $archive ) ) wfMkdirParents( $archive );
-               
+
                $this->mSavedFile = "{$dest}/{$saveName}";
 
                if( is_file( $this->mSavedFile ) ) {
@@ -573,7 +707,7 @@ class UploadForm {
                $reupload = wfMsgHtml( 'reupload' );
                $iw = wfMsgWikiHtml( 'ignorewarning' );
                $reup = wfMsgWikiHtml( 'reuploaddesc' );
-               $titleObj = Title::makeTitle( NS_SPECIAL, 'Upload' );
+               $titleObj = SpecialPage::getTitleFor( 'Upload' );
                $action = $titleObj->escapeLocalURL( 'action=submit' );
 
                if ( $wgUseCopyrightUpload )
@@ -625,6 +759,12 @@ class UploadForm {
                global $wgUseCopyrightUpload;
                global $wgRequest, $wgAllowCopyUploads;
 
+               if( !wfRunHooks( 'UploadForm:initial', array( &$this ) ) )
+               {
+                       wfDebug( "Hook 'UploadForm:initial' broke output of the upload form" );
+                       return false;
+               }
+
                $cols = intval($wgUser->getOption( 'cols' ));
                $ew = $wgUser->getOption( 'editwidth' );
                if ( $ew ) $ew = " style=\"width:100%\"";
@@ -636,10 +776,8 @@ class UploadForm {
                          "<span class='error'>{$msg}</span>\n" );
                }
                $wgOut->addHTML( '<div id="uploadtext">' );
-               $wgOut->addWikiText( wfMsg( 'uploadtext' ) );
+               $wgOut->addWikiText( wfMsgNoTrans( 'uploadtext', $this->mDestFile ) );
                $wgOut->addHTML( '</div>' );
-               $sk = $wgUser->getSkin();
-
 
                $sourcefilename = wfMsgHtml( 'sourcefilename' );
                $destfilename = wfMsgHtml( 'destfilename' );
@@ -653,30 +791,44 @@ class UploadForm {
                $ulb = wfMsgHtml( 'uploadbtn' );
 
 
-               $titleObj = Title::makeTitle( NS_SPECIAL, 'Upload' );
+               $titleObj = SpecialPage::getTitleFor( 'Upload' );
                $action = $titleObj->escapeLocalURL();
 
                $encDestFile = htmlspecialchars( $this->mDestFile );
 
-               $watchChecked = $wgUser->getOption( 'watchdefault' )
+               $watchChecked =
+                       ( $wgUser->getOption( 'watchdefault' ) ||
+                               ( $wgUser->getOption( 'watchcreations' ) && $this->mDestFile == '' ) )
                        ? 'checked="checked"'
                        : '';
-               
-               if ( $wgAllowCopyUploads AND $wgRequest->getText('source') == 'web' ) {
-                       $sourcetype = 'text';
-                       $source_comment = '<input type="hidden" name="wpSourceType" value="web"/>' . wfMsgHtml( 'upload_source_url' );
+
+               // Prepare form for upload or upload/copy
+               if( $wgAllowCopyUploads && $wgUser->isAllowed( 'upload_by_url' ) ) {
+                       $filename_form =
+                               "<input type='radio' id='wpSourceTypeFile' name='wpSourceType' value='file' onchange='toggle_element_activation(\"wpUploadFileURL\",\"wpUploadFile\")' checked />" .
+                               "<input tabindex='1' type='file' name='wpUploadFile' id='wpUploadFile' onfocus='toggle_element_activation(\"wpUploadFileURL\",\"wpUploadFile\");toggle_element_check(\"wpSourceTypeFile\",\"wpSourceTypeURL\")'" .
+                               ($this->mDestFile?"":"onchange='fillDestFilename(\"wpUploadFile\")' ") . "size='40' />" .
+                               wfMsgHTML( 'upload_source_file' ) . "<br/>" .
+                               "<input type='radio' id='wpSourceTypeURL' name='wpSourceType' value='web' onchange='toggle_element_activation(\"wpUploadFile\",\"wpUploadFileURL\")' />" .
+                               "<input tabindex='1' type='text' name='wpUploadFileURL' id='wpUploadFileURL' onfocus='toggle_element_activation(\"wpUploadFile\",\"wpUploadFileURL\");toggle_element_check(\"wpSourceTypeURL\",\"wpSourceTypeFile\")'" .
+                               ($this->mDestFile?"":"onchange='fillDestFilename(\"wpUploadFileURL\")' ") . "size='40' DISABLED />" .
+                               wfMsgHtml( 'upload_source_url' ) ;
                } else {
-                       $sourcetype = 'file';
-                       $source_comment = '';
+                       $filename_form =
+                               "<input tabindex='1' type='file' name='wpUploadFile' id='wpUploadFile' " .
+                               ($this->mDestFile?"":"onchange='fillDestFilename(\"wpUploadFile\")' ") .
+                               "size='40' />" .
+                               "<input type='hidden' name='wpSourceType' value='file' />" ;
                }
 
                $wgOut->addHTML( "
        <form id='upload' method='post' enctype='multipart/form-data' action=\"$action\">
                <table border='0'>
                <tr>
-                       <td align='right'><label for='wpUploadFile'>{$sourcefilename}:</label></td>
+         {$this->uploadFormTextTop}
+                       <td align='right' valign='top'><label for='wpUploadFile'>{$sourcefilename}:</label></td>
                        <td align='left'>
-                               <input tabindex='1' type='{$sourcetype}' name='wpUploadFile' id='wpUploadFile' " . ($this->mDestFile?"":"onchange='fillDestFilename()' ") . "size='40' />{$source_comment}
+                               {$filename_form}
                        </td>
                </tr>
                <tr>
@@ -689,6 +841,7 @@ class UploadForm {
                        <td align='right'><label for='wpUploadDescription'>{$summary}</label></td>
                        <td align='left'>
                                <textarea tabindex='3' name='wpUploadDescription' id='wpUploadDescription' rows='6' cols='{$cols}'{$ew}>" . htmlspecialchars( $this->mUploadDescription ) . "</textarea>
+          {$this->uploadFormTextAfterSummary}
                        </td>
                </tr>
                <tr>" );
@@ -715,7 +868,7 @@ class UploadForm {
                        $copystatus =  htmlspecialchars( $this->mUploadCopyStatus );
                        $filesource = wfMsgHtml ( 'filesource' );
                        $uploadsource = htmlspecialchars( $this->mUploadSource );
-                       
+
                        $wgOut->addHTML( "
                                <td align='right' nowrap='nowrap'><label for='wpUploadCopyStatus'>$filestatus:</label></td>
                                <td><input tabindex='5' type='text' name='wpUploadCopyStatus' id='wpUploadCopyStatus' value=\"$copystatus\" size='40' /></td>
@@ -733,13 +886,10 @@ class UploadForm {
                <td></td>
                <td>
                        <input tabindex='7' type='checkbox' name='wpWatchthis' id='wpWatchthis' $watchChecked value='true' />
-                       <label for='wpWatchthis'>" . wfMsgHtml( 'watchthis' ) . "</label>
+                       <label for='wpWatchthis'>" . wfMsgHtml( 'watchthisupload' ) . "</label>
                        <input tabindex='8' type='checkbox' name='wpIgnoreWarning' id='wpIgnoreWarning' value='true' />
                        <label for='wpIgnoreWarning'>" . wfMsgHtml( 'ignorewarnings' ) . "</label>
                </td>
-       </tr>
-       <tr>
-
        </tr>
        <tr>
                <td></td>
@@ -813,7 +963,7 @@ class UploadForm {
         */
        function verify( $tmpfile, $extension ) {
                #magically determine mime type
-               $magic=& wfGetMimeMagic();
+               $magic=& MimeMagic::singleton();
                $mime= $magic->guessMimeType($tmpfile,false);
 
                $fname= "SpecialUpload::verify";
@@ -831,7 +981,7 @@ class UploadForm {
                        global $wgMimeTypeBlacklist;
                        if( isset($wgMimeTypeBlacklist) && !is_null($wgMimeTypeBlacklist)
                                && $this->checkFileExtension( $mime, $wgMimeTypeBlacklist ) ) {
-                               return new WikiErrorMsg( 'badfiletype', htmlspecialchars( $mime ) );
+                               return new WikiErrorMsg( 'filetype-badmime', htmlspecialchars( $mime ) );
                        }
                }
 
@@ -862,7 +1012,7 @@ class UploadForm {
        function verifyExtension( $mime, $extension ) {
                $fname = 'SpecialUpload::verifyExtension';
 
-               $magic =& wfGetMimeMagic();
+               $magic =& MimeMagic::singleton();
 
                if ( ! $mime || $mime == 'unknown' || $mime == 'unknown/unknown' )
                        if ( ! $magic->isRecognizableExtension( $extension ) ) {
@@ -975,13 +1125,13 @@ class UploadForm {
                $chunk = Sanitizer::decodeCharReferences( $chunk );
 
                #look for script-types
-               if (preg_match("!type\s*=\s*['\"]?\s*(\w*/)?(ecma|java)!sim",$chunk)) return true;
+               if (preg_match('!type\s*=\s*[\'"]?\s*(?:\w*/)?(?:ecma|java)!sim',$chunk)) return true;
 
                #look for html-style script-urls
-               if (preg_match("!(href|src|data)\s*=\s*['\"]?\s*(ecma|java)script:!sim",$chunk)) return true;
+               if (preg_match('!(?:href|src|data)\s*=\s*[\'"]?\s*(?:ecma|java)script:!sim',$chunk)) return true;
 
                #look for css-style script-urls
-               if (preg_match("!url\s*\(\s*['\"]?\s*(ecma|java)script:!sim",$chunk)) return true;
+               if (preg_match('!url\s*\(\s*[\'"]?\s*(?:ecma|java)script:!sim',$chunk)) return true;
 
                wfDebug("SpecialUpload::detectScript: no scripts found\n");
                return false;
@@ -1033,21 +1183,25 @@ class UploadForm {
                #NOTE: there's a 50 line workaround to make stderr redirection work on windows, too.
                #      that does not seem to be worth the pain.
                #      Ask me (Duesentrieb) about it if it's ever needed.
+               $output = array();
                if (wfIsWindows()) exec("$scanner",$output,$code);
                else exec("$scanner 2>&1",$output,$code);
 
-               $exit_code= $code; #remeber for user feedback
+               $exit_code= $code; #remember for user feedback
 
                if ($virus_scanner_codes) { #map exit code to AV_xxx constants.
-                       if (isset($virus_scanner_codes[$code])) $code= $virus_scanner_codes[$code]; #explicite mapping
-                       else if (isset($virus_scanner_codes["*"])) $code= $virus_scanner_codes["*"]; #fallback mapping
+                       if (isset($virus_scanner_codes[$code])) {
+                               $code= $virus_scanner_codes[$code]; # explicit mapping
+                       } else if (isset($virus_scanner_codes["*"])) {
+                               $code= $virus_scanner_codes["*"];   # fallback mapping
+                       }
                }
 
                if ($code===AV_SCAN_FAILED) { #scan failed (code was mapped to false by $virus_scanner_codes)
                        wfDebug("$fname: failed to scan $file (code $exit_code).\n");
 
-                       if ($wgAntivirusRequired) return "scan failed (code $exit_code)";
-                       else return NULL;
+                       if ($wgAntivirusRequired) { return "scan failed (code $exit_code)"; }
+                       else { return NULL; }
                }
                else if ($code===AV_SCAN_ABORTED) { #scan failed because filetype is unknown (probably imune)
                        wfDebug("$fname: unsupported file type $file (code $exit_code).\n");
@@ -1061,7 +1215,7 @@ class UploadForm {
                        $output= join("\n",$output);
                        $output= trim($output);
 
-                       if (!$output) $output= true; #if ther's no output, return true
+                       if (!$output) $output= true; #if there's no output, return true
                        else if ($msg_pattern) {
                                $groups= array();
                                if (preg_match($msg_pattern,$output,$groups)) {