--- /dev/null
+<?php
+/**
+ * @file
+ * @ingroup SpecialPage
+ */
+
+
+/**
+ * Entry point
+ */
+function wfSpecialUpload() {
+ global $wgRequest;
+ $form = new UploadForm( $wgRequest );
+ $form->execute();
+}
+
+/**
+ * implements Special:Upload
+ * @ingroup SpecialPage
+ */
+class UploadForm {
+ const SUCCESS = 0;
+ const BEFORE_PROCESSING = 1;
+ const LARGE_FILE_SERVER = 2;
+ const EMPTY_FILE = 3;
+ const MIN_LENGTH_PARTNAME = 4;
+ const ILLEGAL_FILENAME = 5;
+ const PROTECTED_PAGE = 6;
+ const OVERWRITE_EXISTING_FILE = 7;
+ const FILETYPE_MISSING = 8;
+ const FILETYPE_BADTYPE = 9;
+ const VERIFICATION_ERROR = 10;
+ const UPLOAD_VERIFICATION_ERROR = 11;
+ const UPLOAD_WARNING = 12;
+ const INTERNAL_ERROR = 13;
+
+ /**#@+
+ * @access private
+ */
+ var $mComment, $mLicense, $mIgnoreWarning, $mCurlError;
+ var $mDestName, $mTempPath, $mFileSize, $mFileProps;
+ var $mCopyrightStatus, $mCopyrightSource, $mReUpload, $mAction, $mUploadClicked;
+ var $mSrcName, $mSessionKey, $mStashed, $mDesiredDestName, $mRemoveTempFile, $mSourceType;
+ var $mDestWarningAck, $mCurlDestHandle;
+ var $mLocalFile;
+
+ # Placeholders for text injection by hooks (must be HTML)
+ # extensions should take care to _append_ to the present value
+ var $uploadFormTextTop;
+ var $uploadFormTextAfterSummary;
+
+ const SESSION_VERSION = 1;
+ /**#@-*/
+
+ /**
+ * Constructor : initialise object
+ * Get data POSTed through the form and assign them to the object
+ * @param $request Data posted.
+ */
+ function UploadForm( &$request ) {
+ global $wgAllowCopyUploads;
+ $this->mDesiredDestName = $request->getText( 'wpDestFile' );
+ $this->mIgnoreWarning = $request->getCheck( 'wpIgnoreWarning' );
+ $this->mComment = $request->getText( 'wpUploadDescription' );
+
+ if( !$request->wasPosted() ) {
+ # GET requests just give the main form; no data except destination
+ # filename and description
+ return;
+ }
+
+ # Placeholders for text injection by hooks (empty per default)
+ $this->uploadFormTextTop = "";
+ $this->uploadFormTextAfterSummary = "";
+
+ $this->mReUpload = $request->getCheck( 'wpReUpload' );
+ $this->mUploadClicked = $request->getCheck( 'wpUpload' );
+
+ $this->mLicense = $request->getText( 'wpLicense' );
+ $this->mCopyrightStatus = $request->getText( 'wpUploadCopyStatus' );
+ $this->mCopyrightSource = $request->getText( 'wpUploadSource' );
+ $this->mWatchthis = $request->getBool( 'wpWatchthis' );
+ $this->mSourceType = $request->getText( 'wpSourceType' );
+ $this->mDestWarningAck = $request->getText( 'wpDestFileWarningAck' );
+
+ $this->mAction = $request->getVal( 'action' );
+
+ $this->mSessionKey = $request->getInt( 'wpSessionKey' );
+ if( !empty( $this->mSessionKey ) &&
+ isset( $_SESSION['wsUploadData'][$this->mSessionKey]['version'] ) &&
+ $_SESSION['wsUploadData'][$this->mSessionKey]['version'] == self::SESSION_VERSION ) {
+ /**
+ * Confirming a temporarily stashed upload.
+ * We don't want path names to be forged, so we keep
+ * them in the session on the server and just give
+ * an opaque key to the user agent.
+ */
+ $data = $_SESSION['wsUploadData'][$this->mSessionKey];
+ $this->mTempPath = $data['mTempPath'];
+ $this->mFileSize = $data['mFileSize'];
+ $this->mSrcName = $data['mSrcName'];
+ $this->mFileProps = $data['mFileProps'];
+ $this->mCurlError = 0/*UPLOAD_ERR_OK*/;
+ $this->mStashed = true;
+ $this->mRemoveTempFile = false;
+ } else {
+ /**
+ *Check for a newly uploaded file.
+ */
+ if( $wgAllowCopyUploads && $this->mSourceType == 'web' ) {
+ $this->initializeFromUrl( $request );
+ } else {
+ $this->initializeFromUpload( $request );
+ }
+ }
+ }
+
+ /**
+ * Initialize the uploaded file from PHP data
+ * @access private
+ */
+ function initializeFromUpload( $request ) {
+ $this->mTempPath = $request->getFileTempName( 'wpUploadFile' );
+ $this->mFileSize = $request->getFileSize( 'wpUploadFile' );
+ $this->mSrcName = $request->getFileName( 'wpUploadFile' );
+ $this->mCurlError = $request->getUploadError( 'wpUploadFile' );
+ $this->mSessionKey = false;
+ $this->mStashed = false;
+ $this->mRemoveTempFile = false; // PHP will handle this
+ }
+
+ /**
+ * Copy a web file to a temporary file
+ * @access private
+ */
+ function initializeFromUrl( $request ) {
+ global $wgTmpDirectory;
+ $url = $request->getText( 'wpUploadFileURL' );
+ $local_file = tempnam( $wgTmpDirectory, 'WEBUPLOAD' );
+
+ $this->mTempPath = $local_file;
+ $this->mFileSize = 0; # Will be set by curlCopy
+ $this->mCurlError = $this->curlCopy( $url, $local_file );
+ $pathParts = explode( '/', $url );
+ $this->mSrcName = array_pop( $pathParts );
+ $this->mSessionKey = false;
+ $this->mStashed = false;
+
+ // 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->showErrorPage( 'upload-proto-error', 'upload-proto-error-text' );
+ return true;
+ }
+
+ # Open temporary file
+ $this->mCurlDestHandle = @fopen( $this->mTempPath, "wb" );
+ if( $this->mCurlDestHandle === false ) {
+ # Could not open temporary file to write in
+ $wgOut->showErrorPage( '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->mCurlDestHandle );
+ unset( $this->mCurlDestHandle );
+ if( $error ) {
+ unlink( $dest );
+ if( wfEmptyMsg( "upload-curl-error$errornum", wfMsg("upload-curl-error$errornum") ) )
+ $wgOut->showErrorPage( 'upload-misc-error', 'upload-misc-error-text' );
+ else
+ $wgOut->showErrorPage( "upload-curl-error$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->mFileSize += $length;
+ if( $this->mFileSize > $wgMaxUploadSize ) {
+ return 0;
+ }
+ fwrite( $this->mCurlDestHandle, $data );
+ return $length;
+ }
+
+ /**
+ * Start doing stuff
+ * @access public
+ */
+ function execute() {
+ global $wgUser, $wgOut;
+ global $wgEnableUploads;
+
+ # Check uploading enabled
+ if( !$wgEnableUploads ) {
+ $wgOut->showErrorPage( 'uploaddisabled', 'uploaddisabledtext', array( $this->mDesiredDestName ) );
+ return;
+ }
+
+ # Check permissions
+ if( !$wgUser->isAllowed( 'upload' ) ) {
+ if( !$wgUser->isLoggedIn() ) {
+ $wgOut->showErrorPage( 'uploadnologin', 'uploadnologintext' );
+ } else {
+ $wgOut->permissionRequired( 'upload' );
+ }
+ return;
+ }
+
+ # Check blocks
+ if( $wgUser->isBlocked() ) {
+ $wgOut->blockedPage();
+ return;
+ }
+
+ if( wfReadOnly() ) {
+ $wgOut->readOnlyPage();
+ return;
+ }
+
+ if( $this->mReUpload ) {
+ if( !$this->unsaveUploadedFile() ) {
+ return;
+ }
+ # Because it is probably checked and shouldn't be
+ $this->mIgnoreWarning = false;
+
+ $this->mainUploadForm();
+ } else if( 'submit' == $this->mAction || $this->mUploadClicked ) {
+ $this->processUpload();
+ } else {
+ $this->mainUploadForm();
+ }
+
+ $this->cleanupTempFile();
+ }
+
+ /**
+ * Do the upload
+ * Checks are made in SpecialUpload::execute()
+ *
+ * @access private
+ */
+ function processUpload(){
+ global $wgUser, $wgOut, $wgFileExtensions, $wgLang;
+ $details = null;
+ $value = null;
+ $value = $this->internalProcessUpload( $details );
+
+ switch($value) {
+ case self::SUCCESS:
+ $wgOut->redirect( $this->mLocalFile->getTitle()->getFullURL() );
+ break;
+
+ case self::BEFORE_PROCESSING:
+ break;
+
+ case self::LARGE_FILE_SERVER:
+ $this->mainUploadForm( wfMsgHtml( 'largefileserver' ) );
+ break;
+
+ case self::EMPTY_FILE:
+ $this->mainUploadForm( wfMsgHtml( 'emptyfile' ) );
+ break;
+
+ case self::MIN_LENGTH_PARTNAME:
+ $this->mainUploadForm( wfMsgHtml( 'minlength1' ) );
+ break;
+
+ case self::ILLEGAL_FILENAME:
+ $filtered = $details['filtered'];
+ $this->uploadError( wfMsgWikiHtml( 'illegalfilename', htmlspecialchars( $filtered ) ) );
+ break;
+
+ case self::PROTECTED_PAGE:
+ $wgOut->showPermissionsErrorPage( $details['permissionserrors'] );
+ break;
+
+ case self::OVERWRITE_EXISTING_FILE:
+ $errorText = $details['overwrite'];
+ $this->uploadError( $wgOut->parse( $errorText ) );
+ break;
+
+ case self::FILETYPE_MISSING:
+ $this->uploadError( wfMsgExt( 'filetype-missing', array ( 'parseinline' ) ) );
+ break;
+
+ case self::FILETYPE_BADTYPE:
+ $finalExt = $details['finalExt'];
+ $this->uploadError(
+ wfMsgExt( 'filetype-banned-type',
+ array( 'parseinline' ),
+ htmlspecialchars( $finalExt ),
+ $wgLang->commaList( $wgFileExtensions ),
+ $wgLang->formatNum( count($wgFileExtensions) )
+ )
+ );
+ break;
+
+ case self::VERIFICATION_ERROR:
+ $veri = $details['veri'];
+ $this->uploadError( $veri->toString() );
+ break;
+
+ case self::UPLOAD_VERIFICATION_ERROR:
+ $error = $details['error'];
+ $this->uploadError( $error );
+ break;
+
+ case self::UPLOAD_WARNING:
+ $warning = $details['warning'];
+ $this->uploadWarning( $warning );
+ break;
+
+ case self::INTERNAL_ERROR:
+ $internal = $details['internal'];
+ $this->showError( $internal );
+ break;
+
+ default:
+ throw new MWException( __METHOD__ . ": Unknown value `{$value}`" );
+ }
+ }
+
+ /**
+ * Really do the upload
+ * Checks are made in SpecialUpload::execute()
+ *
+ * @param array $resultDetails contains result-specific dict of additional values
+ *
+ * @access private
+ */
+ function internalProcessUpload( &$resultDetails ) {
+ global $wgUser;
+
+ if( !wfRunHooks( 'UploadForm:BeforeProcessing', array( &$this ) ) )
+ {
+ wfDebug( "Hook 'UploadForm:BeforeProcessing' broke processing the file." );
+ return self::BEFORE_PROCESSING;
+ }
+
+ /**
+ * If there was no filename or a zero size given, give up quick.
+ */
+ if( trim( $this->mSrcName ) == '' || empty( $this->mFileSize ) ) {
+ return self::EMPTY_FILE;
+ }
+
+ /* Check for curl error */
+ if( $this->mCurlError ) {
+ return self::BEFORE_PROCESSING;
+ }
+
+ /**
+ * Chop off any directories in the given filename. Then
+ * filter out illegal characters, and try to make a legible name
+ * out of it. We'll strip some silently that Title would die on.
+ */
+ if( $this->mDesiredDestName ) {
+ $basename = $this->mDesiredDestName;
+ } else {
+ $basename = $this->mSrcName;
+ }
+ $filtered = wfStripIllegalFilenameChars( $basename );
+
+ /* Normalize to title form before we do any further processing */
+ $nt = Title::makeTitleSafe( NS_FILE, $filtered );
+ if( is_null( $nt ) ) {
+ $resultDetails = array( 'filtered' => $filtered );
+ return self::ILLEGAL_FILENAME;
+ }
+ $filtered = $nt->getDBkey();
+
+ /**
+ * We'll want to blacklist against *any* 'extension', and use
+ * only the final one for the whitelist.
+ */
+ list( $partname, $ext ) = $this->splitExtensions( $filtered );
+
+ if( count( $ext ) ) {
+ $finalExt = $ext[count( $ext ) - 1];
+ } else {
+ $finalExt = '';
+ }
+
+ # If there was more than one "extension", reassemble the base
+ # filename to prevent bogus complaints about length
+ if( count( $ext ) > 1 ) {
+ for( $i = 0; $i < count( $ext ) - 1; $i++ )
+ $partname .= '.' . $ext[$i];
+ }
+
+ if( strlen( $partname ) < 1 ) {
+ return self::MIN_LENGTH_PARTNAME;
+ }
+
+ $this->mLocalFile = wfLocalFile( $nt );
+ $this->mDestName = $this->mLocalFile->getName();
+
+ /**
+ * If the image is protected, non-sysop users won't be able
+ * to modify it by uploading a new revision.
+ */
+ $permErrors = $nt->getUserPermissionsErrors( 'edit', $wgUser );
+ $permErrorsUpload = $nt->getUserPermissionsErrors( 'upload', $wgUser );
+ $permErrorsCreate = ( $nt->exists() ? array() : $nt->getUserPermissionsErrors( 'create', $wgUser ) );
+
+ if( $permErrors || $permErrorsUpload || $permErrorsCreate ) {
+ // merge all the problems into one list, avoiding duplicates
+ $permErrors = array_merge( $permErrors, wfArrayDiff2( $permErrorsUpload, $permErrors ) );
+ $permErrors = array_merge( $permErrors, wfArrayDiff2( $permErrorsCreate, $permErrors ) );
+ $resultDetails = array( 'permissionserrors' => $permErrors );
+ return self::PROTECTED_PAGE;
+ }
+
+ /**
+ * In some cases we may forbid overwriting of existing files.
+ */
+ $overwrite = $this->checkOverwrite( $this->mDestName );
+ if( $overwrite !== true ) {
+ $resultDetails = array( 'overwrite' => $overwrite );
+ return self::OVERWRITE_EXISTING_FILE;
+ }
+
+ /* Don't allow users to override the blacklist (check file extension) */
+ global $wgCheckFileExtensions, $wgStrictFileExtensions;
+ global $wgFileExtensions, $wgFileBlacklist;
+ if ($finalExt == '') {
+ return self::FILETYPE_MISSING;
+ } elseif ( $this->checkFileExtensionList( $ext, $wgFileBlacklist ) ||
+ ($wgCheckFileExtensions && $wgStrictFileExtensions &&
+ !$this->checkFileExtension( $finalExt, $wgFileExtensions ) ) ) {
+ $resultDetails = array( 'finalExt' => $finalExt );
+ return self::FILETYPE_BADTYPE;
+ }
+
+ /**
+ * Look at the contents of the file; if we can recognize the
+ * type but it's corrupt or data of the wrong type, we should
+ * probably not accept it.
+ */
+ if( !$this->mStashed ) {
+ $this->mFileProps = File::getPropsFromPath( $this->mTempPath, $finalExt );
+ $this->checkMacBinary();
+ $veri = $this->verify( $this->mTempPath, $finalExt );
+
+ if( $veri !== true ) { //it's a wiki error...
+ $resultDetails = array( 'veri' => $veri );
+ return self::VERIFICATION_ERROR;
+ }
+
+ /**
+ * Provide an opportunity for extensions to add further checks
+ */
+ $error = '';
+ if( !wfRunHooks( 'UploadVerification',
+ array( $this->mDestName, $this->mTempPath, &$error ) ) ) {
+ $resultDetails = array( 'error' => $error );
+ return self::UPLOAD_VERIFICATION_ERROR;
+ }
+ }
+
+
+ /**
+ * Check for non-fatal conditions
+ */
+ if ( ! $this->mIgnoreWarning ) {
+ $warning = '';
+
+ global $wgCapitalLinks;
+ if( $wgCapitalLinks ) {
+ $filtered = ucfirst( $filtered );
+ }
+ if( $basename != $filtered ) {
+ $warning .= '<li>'.wfMsgHtml( 'badfilename', htmlspecialchars( $this->mDestName ) ).'</li>';
+ }
+
+ global $wgCheckFileExtensions;
+ if ( $wgCheckFileExtensions ) {
+ if ( !$this->checkFileExtension( $finalExt, $wgFileExtensions ) ) {
+ global $wgLang;
+ $warning .= '<li>' .
+ wfMsgExt( 'filetype-unwanted-type',
+ array( 'parseinline' ),
+ htmlspecialchars( $finalExt ),
+ $wgLang->commaList( $wgFileExtensions ),
+ $wgLang->formatNum( count($wgFileExtensions) )
+ ) . '</li>';
+ }
+ }
+
+ global $wgUploadSizeWarning;
+ if ( $wgUploadSizeWarning && ( $this->mFileSize > $wgUploadSizeWarning ) ) {
+ $skin = $wgUser->getSkin();
+ $wsize = $skin->formatSize( $wgUploadSizeWarning );
+ $asize = $skin->formatSize( $this->mFileSize );
+ $warning .= '<li>' . wfMsgHtml( 'large-file', $wsize, $asize ) . '</li>';
+ }
+ if ( $this->mFileSize == 0 ) {
+ $warning .= '<li>'.wfMsgHtml( 'emptyfile' ).'</li>';
+ }
+
+ if ( !$this->mDestWarningAck ) {
+ $warning .= self::getExistsWarning( $this->mLocalFile );
+ }
+
+ $warning .= $this->getDupeWarning( $this->mTempPath, $finalExt );
+
+ if( $warning != '' ) {
+ /**
+ * Stash the file in a temporary location; the user can choose
+ * to let it through and we'll complete the upload then.
+ */
+ $resultDetails = array( 'warning' => $warning );
+ return self::UPLOAD_WARNING;
+ }
+ }
+
+ /**
+ * Try actually saving the thing...
+ * It will show an error form on failure.
+ */
+ $pageText = self::getInitialPageText( $this->mComment, $this->mLicense,
+ $this->mCopyrightStatus, $this->mCopyrightSource );
+
+ $status = $this->mLocalFile->upload( $this->mTempPath, $this->mComment, $pageText,
+ File::DELETE_SOURCE, $this->mFileProps );
+ if ( !$status->isGood() ) {
+ $resultDetails = array( 'internal' => $status->getWikiText() );
+ return self::INTERNAL_ERROR;
+ } else {
+ if ( $this->mWatchthis ) {
+ global $wgUser;
+ $wgUser->addWatch( $this->mLocalFile->getTitle() );
+ }
+ // Success, redirect to description page
+ $img = null; // @todo: added to avoid passing a ref to null - should this be defined somewhere?
+ wfRunHooks( 'UploadComplete', array( &$this ) );
+ return self::SUCCESS;
+ }
+ }
+
+ /**
+ * Do existence checks on a file and produce a warning
+ * This check is static and can be done pre-upload via AJAX
+ * Returns an HTML fragment consisting of one or more LI elements if there is a warning
+ * Returns an empty string if there is no warning
+ */
+ static function getExistsWarning( $file ) {
+ global $wgUser, $wgContLang;
+ // Check for uppercase extension. We allow these filenames but check if an image
+ // with lowercase extension exists already
+ $warning = '';
+ $align = $wgContLang->isRtl() ? 'left' : 'right';
+
+ if( strpos( $file->getName(), '.' ) == false ) {
+ $partname = $file->getName();
+ $rawExtension = '';
+ } else {
+ $n = strrpos( $file->getName(), '.' );
+ $rawExtension = substr( $file->getName(), $n + 1 );
+ $partname = substr( $file->getName(), 0, $n );
+ }
+
+ $sk = $wgUser->getSkin();
+
+ if ( $rawExtension != $file->getExtension() ) {
+ // We're not using the normalized form of the extension.
+ // Normal form is lowercase, using most common of alternate
+ // extensions (eg 'jpg' rather than 'JPEG').
+ //
+ // Check for another file using the normalized form...
+ $nt_lc = Title::makeTitle( NS_FILE, $partname . '.' . $file->getExtension() );
+ $file_lc = wfLocalFile( $nt_lc );
+ } else {
+ $file_lc = false;
+ }
+
+ if( $file->exists() ) {
+ $dlink = $sk->makeKnownLinkObj( $file->getTitle() );
+ if ( $file->allowInlineDisplay() ) {
+ $dlink2 = $sk->makeImageLinkObj( $file->getTitle(), wfMsgExt( 'fileexists-thumb', 'parseinline' ),
+ $file->getName(), $align, array(), false, true );
+ } elseif ( !$file->allowInlineDisplay() && $file->isSafeFile() ) {
+ $icon = $file->iconThumb();
+ $dlink2 = '<div style="float:' . $align . '" id="mw-media-icon">' .
+ $icon->toHtml( array( 'desc-link' => true ) ) . '<br />' . $dlink . '</div>';
+ } else {
+ $dlink2 = '';
+ }
+
+ $warning .= '<li>' . wfMsgExt( 'fileexists', array('parseinline','replaceafter'), $dlink ) . '</li>' . $dlink2;
+
+ } elseif( $file->getTitle()->getArticleID() ) {
+ $lnk = $sk->makeKnownLinkObj( $file->getTitle(), '', 'redirect=no' );
+ $warning .= '<li>' . wfMsgExt( 'filepageexists', array( 'parseinline', 'replaceafter' ), $lnk ) . '</li>';
+ } elseif ( $file_lc && $file_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 ( $file_lc->allowInlineDisplay() ) {
+ $dlink2 = $sk->makeImageLinkObj( $nt_lc, wfMsgExt( 'fileexists-thumb', 'parseinline' ),
+ $nt_lc->getText(), $align, array(), false, true );
+ } elseif ( !$file_lc->allowInlineDisplay() && $file_lc->isSafeFile() ) {
+ $icon = $file_lc->iconThumb();
+ $dlink2 = '<div style="float:' . $align . '" id="mw-media-icon">' .
+ $icon->toHtml( array( 'desc-link' => true ) ) . '<br />' . $dlink . '</div>';
+ } else {
+ $dlink2 = '';
+ }
+
+ $warning .= '<li>' .
+ wfMsgExt( 'fileexists-extension', 'parsemag',
+ $file->getTitle()->getPrefixedText(), $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 ) . '.' . $rawExtension );
+ $file_thb = wfLocalFile( $nt_thb );
+ if ($file_thb->exists() ) {
+ # Check if an image without leading '180px-' (or similiar) exists
+ $dlink = $sk->makeKnownLinkObj( $nt_thb);
+ if ( $file_thb->allowInlineDisplay() ) {
+ $dlink2 = $sk->makeImageLinkObj( $nt_thb,
+ wfMsgExt( 'fileexists-thumb', 'parseinline' ),
+ $nt_thb->getText(), $align, array(), false, true );
+ } elseif ( !$file_thb->allowInlineDisplay() && $file_thb->isSafeFile() ) {
+ $icon = $file_thb->iconThumb();
+ $dlink2 = '<div style="float:' . $align . '" id="mw-media-icon">' .
+ $icon->toHtml( array( 'desc-link' => true ) ) . '<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>';
+ }
+ }
+
+ $filenamePrefixBlacklist = self::getFilenamePrefixBlacklist();
+ # Do the match
+ foreach( $filenamePrefixBlacklist as $prefix ) {
+ if ( substr( $partname, 0, strlen( $prefix ) ) == $prefix ) {
+ $warning .= '<li>' . wfMsgExt( 'filename-bad-prefix', 'parseinline', $prefix ) . '</li>';
+ break;
+ }
+ }
+
+ if ( $file->wasDeleted() && !$file->exists() ) {
+ # If the file existed before and was deleted, warn the user of this
+ # Don't bother doing so if the file exists now, however
+ $ltitle = SpecialPage::getTitleFor( 'Log' );
+ $llink = $sk->makeKnownLinkObj( $ltitle, wfMsgHtml( 'deletionlog' ),
+ 'type=delete&page=' . $file->getTitle()->getPrefixedUrl() );
+ $warning .= '<li>' . wfMsgWikiHtml( 'filewasdeleted', $llink ) . '</li>';
+ }
+ return $warning;
+ }
+
+ /**
+ * Get a list of warnings
+ *
+ * @param string local filename, e.g. 'file exists', 'non-descriptive filename'
+ * @return array list of warning messages
+ */
+ static function ajaxGetExistsWarning( $filename ) {
+ $file = wfFindFile( $filename );
+ if( !$file ) {
+ // Force local file so we have an object to do further checks against
+ // if there isn't an exact match...
+ $file = wfLocalFile( $filename );
+ }
+ $s = ' ';
+ if ( $file ) {
+ $warning = self::getExistsWarning( $file );
+ if ( $warning !== '' ) {
+ $s = "<ul>$warning</ul>";
+ }
+ }
+ return $s;
+ }
+
+ /**
+ * Render a preview of a given license for the AJAX preview on upload
+ *
+ * @param string $license
+ * @return string
+ */
+ public static function ajaxGetLicensePreview( $license ) {
+ global $wgParser, $wgUser;
+ $text = '{{' . $license . '}}';
+ $title = Title::makeTitle( NS_FILE, 'Sample.jpg' );
+ $options = ParserOptions::newFromUser( $wgUser );
+
+ // Expand subst: first, then live templates...
+ $text = $wgParser->preSaveTransform( $text, $title, $wgUser, $options );
+ $output = $wgParser->parse( $text, $title, $options );
+
+ return $output->getText();
+ }
+
+ /**
+ * Check for duplicate files and throw up a warning before the upload
+ * completes.
+ */
+ function getDupeWarning( $tempfile, $extension ) {
+ $hash = File::sha1Base36( $tempfile );
+ $dupes = RepoGroup::singleton()->findBySha1( $hash );
+ $archivedImage = new ArchivedFile( null, 0, $hash.".$extension" );
+ if( $dupes ) {
+ global $wgOut;
+ $msg = "<gallery>";
+ foreach( $dupes as $file ) {
+ $title = $file->getTitle();
+ $msg .= $title->getPrefixedText() .
+ "|" . $title->getText() . "\n";
+ }
+ $msg .= "</gallery>";
+ return "<li>" .
+ wfMsgExt( "file-exists-duplicate", array( "parse" ), count( $dupes ) ) .
+ $wgOut->parse( $msg ) .
+ "</li>\n";
+ } elseif ( $archivedImage->getID() > 0 ) {
+ global $wgOut;
+ $name = Title::makeTitle( NS_FILE, $archivedImage->getName() )->getPrefixedText();
+ return Xml::tags( 'li', null, wfMsgExt( 'file-deleted-duplicate', array( 'parseinline' ), array( $name ) ) );
+ } else {
+ return '';
+ }
+ }
+
+ /**
+ * Get a list of blacklisted filename prefixes from [[MediaWiki:filename-prefix-blacklist]]
+ *
+ * @return array list of prefixes
+ */
+ public static function getFilenamePrefixBlacklist() {
+ $blacklist = array();
+ $message = wfMsgForContent( 'filename-prefix-blacklist' );
+ if( $message && !( wfEmptyMsg( 'filename-prefix-blacklist', $message ) || $message == '-' ) ) {
+ $lines = explode( "\n", $message );
+ foreach( $lines as $line ) {
+ // Remove comment lines
+ $comment = substr( trim( $line ), 0, 1 );
+ if ( $comment == '#' || $comment == '' ) {
+ continue;
+ }
+ // Remove additional comments after a prefix
+ $comment = strpos( $line, '#' );
+ if ( $comment > 0 ) {
+ $line = substr( $line, 0, $comment-1 );
+ }
+ $blacklist[] = trim( $line );
+ }
+ }
+ return $blacklist;
+ }
+
+ /**
+ * Stash a file in a temporary directory for later processing
+ * after the user has confirmed it.
+ *
+ * If the user doesn't explicitly cancel or accept, these files
+ * can accumulate in the temp directory.
+ *
+ * @param string $saveName - the destination filename
+ * @param string $tempName - the source temporary file to save
+ * @return string - full path the stashed file, or false on failure
+ * @access private
+ */
+ function saveTempUploadedFile( $saveName, $tempName ) {
+ global $wgOut;
+ $repo = RepoGroup::singleton()->getLocalRepo();
+ $status = $repo->storeTemp( $saveName, $tempName );
+ if ( !$status->isGood() ) {
+ $this->showError( $status->getWikiText() );
+ return false;
+ } else {
+ return $status->value;
+ }
+ }
+
+ /**
+ * Stash a file in a temporary directory for later processing,
+ * and save the necessary descriptive info into the session.
+ * Returns a key value which will be passed through a form
+ * to pick up the path info on a later invocation.
+ *
+ * @return int
+ * @access private
+ */
+ function stashSession() {
+ $stash = $this->saveTempUploadedFile( $this->mDestName, $this->mTempPath );
+
+ if( !$stash ) {
+ # Couldn't save the file.
+ return false;
+ }
+
+ $key = mt_rand( 0, 0x7fffffff );
+ $_SESSION['wsUploadData'][$key] = array(
+ 'mTempPath' => $stash,
+ 'mFileSize' => $this->mFileSize,
+ 'mSrcName' => $this->mSrcName,
+ 'mFileProps' => $this->mFileProps,
+ 'version' => self::SESSION_VERSION,
+ );
+ return $key;
+ }
+
+ /**
+ * Remove a temporarily kept file stashed by saveTempUploadedFile().
+ * @access private
+ * @return success
+ */
+ function unsaveUploadedFile() {
+ global $wgOut;
+ $repo = RepoGroup::singleton()->getLocalRepo();
+ $success = $repo->freeTemp( $this->mTempPath );
+ if ( ! $success ) {
+ $wgOut->showFileDeleteError( $this->mTempPath );
+ return false;
+ } else {
+ return true;
+ }
+ }
+
+ /* -------------------------------------------------------------- */
+
+ /**
+ * @param string $error as HTML
+ * @access private
+ */
+ function uploadError( $error ) {
+ global $wgOut;
+ $wgOut->addHTML( '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n" );
+ $wgOut->addHTML( '<span class="error">' . $error . '</span>' );
+ }
+
+ /**
+ * There's something wrong with this file, not enough to reject it
+ * totally but we require manual intervention to save it for real.
+ * Stash it away, then present a form asking to confirm or cancel.
+ *
+ * @param string $warning as HTML
+ * @access private
+ */
+ function uploadWarning( $warning ) {
+ global $wgOut;
+ global $wgUseCopyrightUpload;
+
+ $this->mSessionKey = $this->stashSession();
+ if( !$this->mSessionKey ) {
+ # Couldn't save file; an error has been displayed so let's go.
+ return;
+ }
+
+ $wgOut->addHTML( '<h2>' . wfMsgHtml( 'uploadwarning' ) . "</h2>\n" );
+ $wgOut->addHTML( '<ul class="warning">' . $warning . "</ul>\n" );
+
+ $titleObj = SpecialPage::getTitleFor( 'Upload' );
+
+ if ( $wgUseCopyrightUpload ) {
+ $copyright = Xml::hidden( 'wpUploadCopyStatus', $this->mCopyrightStatus ) . "\n" .
+ Xml::hidden( 'wpUploadSource', $this->mCopyrightSource ) . "\n";
+ } else {
+ $copyright = '';
+ }
+
+ $wgOut->addHTML(
+ Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL( 'action=submit' ),
+ 'enctype' => 'multipart/form-data', 'id' => 'uploadwarning' ) ) . "\n" .
+ Xml::hidden( 'wpIgnoreWarning', '1' ) . "\n" .
+ Xml::hidden( 'wpSessionKey', $this->mSessionKey ) . "\n" .
+ Xml::hidden( 'wpUploadDescription', $this->mComment ) . "\n" .
+ Xml::hidden( 'wpLicense', $this->mLicense ) . "\n" .
+ Xml::hidden( 'wpDestFile', $this->mDesiredDestName ) . "\n" .
+ Xml::hidden( 'wpWatchthis', $this->mWatchthis ) . "\n" .
+ "{$copyright}<br />" .
+ Xml::submitButton( wfMsg( 'ignorewarning' ), array ( 'name' => 'wpUpload', 'id' => 'wpUpload', 'checked' => 'checked' ) ) . ' ' .
+ Xml::submitButton( wfMsg( 'reuploaddesc' ), array ( 'name' => 'wpReUpload', 'id' => 'wpReUpload' ) ) .
+ Xml::closeElement( 'form' ) . "\n"
+ );
+ }
+
+ /**
+ * Displays the main upload form, optionally with a highlighted
+ * error message up at the top.
+ *
+ * @param string $msg as HTML
+ * @access private
+ */
+ function mainUploadForm( $msg='' ) {
+ global $wgOut, $wgUser, $wgLang, $wgMaxUploadSize;
+ global $wgUseCopyrightUpload, $wgUseAjax, $wgAjaxUploadDestCheck, $wgAjaxLicensePreview;
+ global $wgRequest, $wgAllowCopyUploads;
+ global $wgStylePath, $wgStyleVersion;
+
+ $useAjaxDestCheck = $wgUseAjax && $wgAjaxUploadDestCheck;
+ $useAjaxLicensePreview = $wgUseAjax && $wgAjaxLicensePreview;
+
+ $adc = wfBoolToStr( $useAjaxDestCheck );
+ $alp = wfBoolToStr( $useAjaxLicensePreview );
+ $autofill = wfBoolToStr( $this->mDesiredDestName == '' );
+
+ $wgOut->addScript( "<script type=\"text/javascript\">
+wgAjaxUploadDestCheck = {$adc};
+wgAjaxLicensePreview = {$alp};
+wgUploadAutoFill = {$autofill};
+</script>" );
+ $wgOut->addScriptFile( 'upload.js' );
+ $wgOut->addScriptFile( 'edit.js' ); // For <charinsert> support
+
+ if( !wfRunHooks( 'UploadForm:initial', array( &$this ) ) )
+ {
+ wfDebug( "Hook 'UploadForm:initial' broke output of the upload form" );
+ return false;
+ }
+
+ if( $this->mDesiredDestName ) {
+ $title = Title::makeTitleSafe( NS_FILE, $this->mDesiredDestName );
+ // Show a subtitle link to deleted revisions (to sysops et al only)
+ if( $title instanceof Title && ( $count = $title->isDeleted() ) > 0 && $wgUser->isAllowed( 'deletedhistory' ) ) {
+ $link = wfMsgExt(
+ $wgUser->isAllowed( 'delete' ) ? 'thisisdeleted' : 'viewdeleted',
+ array( 'parse', 'replaceafter' ),
+ $wgUser->getSkin()->makeKnownLinkObj(
+ SpecialPage::getTitleFor( 'Undelete', $title->getPrefixedText() ),
+ wfMsgExt( 'restorelink', array( 'parsemag', 'escape' ), $count )
+ )
+ );
+ $wgOut->addHTML( "<div id=\"contentSub2\">{$link}</div>" );
+ }
+
+ // Show the relevant lines from deletion log (for still deleted files only)
+ if( $title instanceof Title && $title->isDeleted() > 0 && !$title->exists() ) {
+ $this->showDeletionLog( $wgOut, $title->getPrefixedText() );
+ }
+ }
+
+ $cols = intval($wgUser->getOption( 'cols' ));
+
+ if( $wgUser->getOption( 'editwidth' ) ) {
+ $width = " style=\"width:100%\"";
+ } else {
+ $width = '';
+ }
+
+ if ( '' != $msg ) {
+ $sub = wfMsgHtml( 'uploaderror' );
+ $wgOut->addHTML( "<h2>{$sub}</h2>\n" .
+ "<span class='error'>{$msg}</span>\n" );
+ }
+ $wgOut->addHTML( '<div id="uploadtext">' );
+ $wgOut->addWikiMsg( 'uploadtext', $this->mDesiredDestName );
+ $wgOut->addHTML( "</div>\n" );
+
+ # Print a list of allowed file extensions, if so configured. We ignore
+ # MIME type here, it's incomprehensible to most people and too long.
+ global $wgCheckFileExtensions, $wgStrictFileExtensions,
+ $wgFileExtensions, $wgFileBlacklist;
+
+ $allowedExtensions = '';
+ if( $wgCheckFileExtensions ) {
+ if( $wgStrictFileExtensions ) {
+ # Everything not permitted is banned
+ $extensionsList =
+ '<div id="mw-upload-permitted">' .
+ wfMsgWikiHtml( 'upload-permitted', $wgLang->commaList( $wgFileExtensions ) ) .
+ "</div>\n";
+ } else {
+ # We have to list both preferred and prohibited
+ $extensionsList =
+ '<div id="mw-upload-preferred">' .
+ wfMsgWikiHtml( 'upload-preferred', $wgLang->commaList( $wgFileExtensions ) ) .
+ "</div>\n" .
+ '<div id="mw-upload-prohibited">' .
+ wfMsgWikiHtml( 'upload-prohibited', $wgLang->commaList( $wgFileBlacklist ) ) .
+ "</div>\n";
+ }
+ } else {
+ # Everything is permitted.
+ $extensionsList = '';
+ }
+
+ # Get the maximum file size from php.ini as $wgMaxUploadSize works for uploads from URL via CURL only
+ # See http://www.php.net/manual/en/ini.core.php#ini.upload-max-filesize for possible values of upload_max_filesize
+ $val = trim( ini_get( 'upload_max_filesize' ) );
+ $last = strtoupper( ( substr( $val, -1 ) ) );
+ switch( $last ) {
+ case 'G':
+ $val2 = substr( $val, 0, -1 ) * 1024 * 1024 * 1024;
+ break;
+ case 'M':
+ $val2 = substr( $val, 0, -1 ) * 1024 * 1024;
+ break;
+ case 'K':
+ $val2 = substr( $val, 0, -1 ) * 1024;
+ break;
+ default:
+ $val2 = $val;
+ }
+ $val2 = $wgAllowCopyUploads ? min( $wgMaxUploadSize, $val2 ) : $val2;
+ $maxUploadSize = '<div id="mw-upload-maxfilesize">' .
+ wfMsgExt( 'upload-maxfilesize', array( 'parseinline', 'escapenoentities' ),
+ $wgLang->formatSize( $val2 ) ) .
+ "</div>\n";
+
+ $sourcefilename = wfMsgExt( 'sourcefilename', array( 'parseinline', 'escapenoentities' ) );
+ $destfilename = wfMsgExt( 'destfilename', array( 'parseinline', 'escapenoentities' ) );
+
+ $summary = wfMsgExt( 'fileuploadsummary', 'parseinline' );
+
+ $licenses = new Licenses();
+ $license = wfMsgExt( 'license', array( 'parseinline' ) );
+ $nolicense = wfMsgHtml( 'nolicense' );
+ $licenseshtml = $licenses->getHtml();
+
+ $ulb = wfMsgHtml( 'uploadbtn' );
+
+
+ $titleObj = SpecialPage::getTitleFor( 'Upload' );
+
+ $encDestName = htmlspecialchars( $this->mDesiredDestName );
+
+ $watchChecked = $this->watchCheck()
+ ? 'checked="checked"'
+ : '';
+ $warningChecked = $this->mIgnoreWarning ? 'checked' : '';
+
+ // 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='checked' />" .
+ "<input tabindex='1' type='file' name='wpUploadFile' id='wpUploadFile' " .
+ "onfocus='" .
+ "toggle_element_activation(\"wpUploadFileURL\",\"wpUploadFile\");" .
+ "toggle_element_check(\"wpSourceTypeFile\",\"wpSourceTypeURL\")' " .
+ "onchange='fillDestFilename(\"wpUploadFile\")' size='60' />" .
+ 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\")' " .
+ "onchange='fillDestFilename(\"wpUploadFileURL\")' size='60' disabled='disabled' />" .
+ wfMsgHtml( 'upload_source_url' ) ;
+ } else {
+ $filename_form =
+ "<input tabindex='1' type='file' name='wpUploadFile' id='wpUploadFile' " .
+ ($this->mDesiredDestName?"":"onchange='fillDestFilename(\"wpUploadFile\")' ") .
+ "size='60' />" .
+ "<input type='hidden' name='wpSourceType' value='file' />" ;
+ }
+ if ( $useAjaxDestCheck ) {
+ $warningRow = "<tr><td colspan='2' id='wpDestFile-warning'> </td></tr>";
+ $destOnkeyup = 'onkeyup="wgUploadWarningObj.keypress();"';
+ } else {
+ $warningRow = '';
+ $destOnkeyup = '';
+ }
+
+ $encComment = htmlspecialchars( $this->mComment );
+
+ $wgOut->addHTML(
+ Xml::openElement( 'form', array( 'method' => 'post', 'action' => $titleObj->getLocalURL(),
+ 'enctype' => 'multipart/form-data', 'id' => 'mw-upload-form' ) ) .
+ Xml::openElement( 'fieldset' ) .
+ Xml::element( 'legend', null, wfMsg( 'upload' ) ) .
+ Xml::openElement( 'table', array( 'border' => '0', 'id' => 'mw-upload-table' ) ) .
+ "<tr>
+ {$this->uploadFormTextTop}
+ <td class='mw-label'>
+ <label for='wpUploadFile'>{$sourcefilename}</label>
+ </td>
+ <td class='mw-input'>
+ {$filename_form}
+ </td>
+ </tr>
+ <tr>
+ <td></td>
+ <td>
+ {$maxUploadSize}
+ {$extensionsList}
+ </td>
+ </tr>
+ <tr>
+ <td class='mw-label'>
+ <label for='wpDestFile'>{$destfilename}</label>
+ </td>
+ <td class='mw-input'>
+ <input tabindex='2' type='text' name='wpDestFile' id='wpDestFile' size='60'
+ value=\"{$encDestName}\" onchange='toggleFilenameFiller()' $destOnkeyup />
+ </td>
+ </tr>
+ <tr>
+ <td class='mw-label'>
+ <label for='wpUploadDescription'>{$summary}</label>
+ </td>
+ <td class='mw-input'>
+ <textarea tabindex='3' name='wpUploadDescription' id='wpUploadDescription' rows='6'
+ cols='{$cols}'{$width}>$encComment</textarea>
+ {$this->uploadFormTextAfterSummary}
+ </td>
+ </tr>
+ <tr>"
+ );
+
+ if ( $licenseshtml != '' ) {
+ global $wgStylePath;
+ $wgOut->addHTML( "
+ <td class='mw-label'>
+ <label for='wpLicense'>$license</label>
+ </td>
+ <td class='mw-input'>
+ <select name='wpLicense' id='wpLicense' tabindex='4'
+ onchange='licenseSelectorCheck()'>
+ <option value=''>$nolicense</option>
+ $licenseshtml
+ </select>
+ </td>
+ </tr>
+ <tr>"
+ );
+ if( $useAjaxLicensePreview ) {
+ $wgOut->addHTML( "
+ <td></td>
+ <td id=\"mw-license-preview\"></td>
+ </tr>
+ <tr>"
+ );
+ }
+ }
+
+ if ( $wgUseCopyrightUpload ) {
+ $filestatus = wfMsgExt( 'filestatus', 'escapenoentities' );
+ $copystatus = htmlspecialchars( $this->mCopyrightStatus );
+ $filesource = wfMsgExt( 'filesource', 'escapenoentities' );
+ $uploadsource = htmlspecialchars( $this->mCopyrightSource );
+
+ $wgOut->addHTML( "
+ <td class='mw-label' style='white-space: nowrap;'>
+ <label for='wpUploadCopyStatus'>$filestatus</label></td>
+ <td class='mw-input'>
+ <input tabindex='5' type='text' name='wpUploadCopyStatus' id='wpUploadCopyStatus'
+ value=\"$copystatus\" size='60' />
+ </td>
+ </tr>
+ <tr>
+ <td class='mw-label'>
+ <label for='wpUploadCopyStatus'>$filesource</label>
+ </td>
+ <td class='mw-input'>
+ <input tabindex='6' type='text' name='wpUploadSource' id='wpUploadCopyStatus'
+ value=\"$uploadsource\" size='60' />
+ </td>
+ </tr>
+ <tr>"
+ );
+ }
+
+ $wgOut->addHTML( "
+ <td></td>
+ <td>
+ <input tabindex='7' type='checkbox' name='wpWatchthis' id='wpWatchthis' $watchChecked value='true' />
+ <label for='wpWatchthis'>" . wfMsgHtml( 'watchthisupload' ) . "</label>
+ <input tabindex='8' type='checkbox' name='wpIgnoreWarning' id='wpIgnoreWarning' value='true' $warningChecked/>
+ <label for='wpIgnoreWarning'>" . wfMsgHtml( 'ignorewarnings' ) . "</label>
+ </td>
+ </tr>
+ $warningRow
+ <tr>
+ <td></td>
+ <td class='mw-input'>
+ <input tabindex='9' type='submit' name='wpUpload' value=\"{$ulb}\"" . $wgUser->getSkin()->tooltipAndAccesskey( 'upload' ) . " />
+ </td>
+ </tr>
+ <tr>
+ <td></td>
+ <td class='mw-input'>"
+ );
+ $wgOut->addWikiText( wfMsgForContent( 'edittools' ) );
+ $wgOut->addHTML( "
+ </td>
+ </tr>" .
+ Xml::closeElement( 'table' ) .
+ Xml::hidden( 'wpDestFileWarningAck', '', array( 'id' => 'wpDestFileWarningAck' ) ) .
+ Xml::closeElement( 'fieldset' ) .
+ Xml::closeElement( 'form' )
+ );
+ $uploadfooter = wfMsgNoTrans( 'uploadfooter' );
+ if( $uploadfooter != '-' && !wfEmptyMsg( 'uploadfooter', $uploadfooter ) ){
+ $wgOut->addWikiText( '<div id="mw-upload-footer-message">' . $uploadfooter . '</div>' );
+ }
+ }
+
+ /* -------------------------------------------------------------- */
+
+ /**
+ * See if we should check the 'watch this page' checkbox on the form
+ * based on the user's preferences and whether we're being asked
+ * to create a new file or update an existing one.
+ *
+ * In the case where 'watch edits' is off but 'watch creations' is on,
+ * we'll leave the box unchecked.
+ *
+ * Note that the page target can be changed *on the form*, so our check
+ * state can get out of sync.
+ */
+ function watchCheck() {
+ global $wgUser;
+ if( $wgUser->getOption( 'watchdefault' ) ) {
+ // Watch all edits!
+ return true;
+ }
+
+ $local = wfLocalFile( $this->mDesiredDestName );
+ if( $local && $local->exists() ) {
+ // We're uploading a new version of an existing file.
+ // No creation, so don't watch it if we're not already.
+ return $local->getTitle()->userIsWatching();
+ } else {
+ // New page should get watched if that's our option.
+ return $wgUser->getOption( 'watchcreations' );
+ }
+ }
+
+ /**
+ * Split a file into a base name and all dot-delimited 'extensions'
+ * on the end. Some web server configurations will fall back to
+ * earlier pseudo-'extensions' to determine type and execute
+ * scripts, so the blacklist needs to check them all.
+ *
+ * @return array
+ */
+ public function splitExtensions( $filename ) {
+ $bits = explode( '.', $filename );
+ $basename = array_shift( $bits );
+ return array( $basename, $bits );
+ }
+
+ /**
+ * Perform case-insensitive match against a list of file extensions.
+ * Returns true if the extension is in the list.
+ *
+ * @param string $ext
+ * @param array $list
+ * @return bool
+ */
+ function checkFileExtension( $ext, $list ) {
+ return in_array( strtolower( $ext ), $list );
+ }
+
+ /**
+ * Perform case-insensitive match against a list of file extensions.
+ * Returns true if any of the extensions are in the list.
+ *
+ * @param array $ext
+ * @param array $list
+ * @return bool
+ */
+ public function checkFileExtensionList( $ext, $list ) {
+ foreach( $ext as $e ) {
+ if( in_array( strtolower( $e ), $list ) ) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Verifies that it's ok to include the uploaded file
+ *
+ * @param string $tmpfile the full path of the temporary file to verify
+ * @param string $extension The filename extension that the file is to be served with
+ * @return mixed true of the file is verified, a WikiError object otherwise.
+ */
+ function verify( $tmpfile, $extension ) {
+ #magically determine mime type
+ $magic = MimeMagic::singleton();
+ $mime = $magic->guessMimeType($tmpfile,false);
+
+
+ #check mime type, if desired
+ global $wgVerifyMimeType;
+ if ($wgVerifyMimeType) {
+ wfDebug ( "\n\nmime: <$mime> extension: <$extension>\n\n");
+ #check mime type against file extension
+ if( !self::verifyExtension( $mime, $extension ) ) {
+ return new WikiErrorMsg( 'uploadcorrupt' );
+ }
+
+ #check mime type blacklist
+ global $wgMimeTypeBlacklist;
+ if( isset($wgMimeTypeBlacklist) && !is_null($wgMimeTypeBlacklist) ) {
+ if ( $this->checkFileExtension( $mime, $wgMimeTypeBlacklist ) ) {
+ return new WikiErrorMsg( 'filetype-badmime', htmlspecialchars( $mime ) );
+ }
+
+ # Check IE type
+ $fp = fopen( $tmpfile, 'rb' );
+ $chunk = fread( $fp, 256 );
+ fclose( $fp );
+ $extMime = $magic->guessTypesForExtension( $extension );
+ $ieTypes = $magic->getIEMimeTypes( $tmpfile, $chunk, $extMime );
+ foreach ( $ieTypes as $ieType ) {
+ if ( $this->checkFileExtension( $ieType, $wgMimeTypeBlacklist ) ) {
+ return new WikiErrorMsg( 'filetype-bad-ie-mime', $ieType );
+ }
+ }
+ }
+ }
+
+ #check for htmlish code and javascript
+ if( $this->detectScript ( $tmpfile, $mime, $extension ) ) {
+ return new WikiErrorMsg( 'uploadscripted' );
+ }
+ if( $extension == 'svg' || $mime == 'image/svg+xml' ) {
+ if( $this->detectScriptInSvg( $tmpfile ) ) {
+ return new WikiErrorMsg( 'uploadscripted' );
+ }
+ }
+
+ /**
+ * Scan the uploaded file for viruses
+ */
+ $virus= $this->detectVirus($tmpfile);
+ if ( $virus ) {
+ return new WikiErrorMsg( 'uploadvirus', htmlspecialchars($virus) );
+ }
+
+ wfDebug( __METHOD__.": all clear; passing.\n" );
+ return true;
+ }
+
+ /**
+ * Checks if the mime type of the uploaded file matches the file extension.
+ *
+ * @param string $mime the mime type of the uploaded file
+ * @param string $extension The filename extension that the file is to be served with
+ * @return bool
+ */
+ static function verifyExtension( $mime, $extension ) {
+ $magic = MimeMagic::singleton();
+
+ if ( ! $mime || $mime == 'unknown' || $mime == 'unknown/unknown' )
+ if ( ! $magic->isRecognizableExtension( $extension ) ) {
+ wfDebug( __METHOD__.": passing file with unknown detected mime type; " .
+ "unrecognized extension '$extension', can't verify\n" );
+ return true;
+ } else {
+ wfDebug( __METHOD__.": rejecting file with unknown detected mime type; ".
+ "recognized extension '$extension', so probably invalid file\n" );
+ return false;
+ }
+
+ $match= $magic->isMatchingExtension($extension,$mime);
+
+ if ($match===NULL) {
+ wfDebug( __METHOD__.": no file extension known for mime type $mime, passing file\n" );
+ return true;
+ } elseif ($match===true) {
+ wfDebug( __METHOD__.": mime type $mime matches extension $extension, passing file\n" );
+
+ #TODO: if it's a bitmap, make sure PHP or ImageMagic resp. can handle it!
+ return true;
+
+ } else {
+ wfDebug( __METHOD__.": mime type $mime mismatches file extension $extension, rejecting file\n" );
+ return false;
+ }
+ }
+
+
+ /**
+ * Heuristic for detecting files that *could* contain JavaScript instructions or
+ * things that may look like HTML to a browser and are thus
+ * potentially harmful. The present implementation will produce false positives in some situations.
+ *
+ * @param string $file Pathname to the temporary upload file
+ * @param string $mime The mime type of the file
+ * @param string $extension The extension of the file
+ * @return bool true if the file contains something looking like embedded scripts
+ */
+ function detectScript($file, $mime, $extension) {
+ global $wgAllowTitlesInSVG;
+
+ #ugly hack: for text files, always look at the entire file.
+ #For binarie field, just check the first K.
+
+ if (strpos($mime,'text/')===0) $chunk = file_get_contents( $file );
+ else {
+ $fp = fopen( $file, 'rb' );
+ $chunk = fread( $fp, 1024 );
+ fclose( $fp );
+ }
+
+ $chunk= strtolower( $chunk );
+
+ if (!$chunk) return false;
+
+ #decode from UTF-16 if needed (could be used for obfuscation).
+ if (substr($chunk,0,2)=="\xfe\xff") $enc= "UTF-16BE";
+ elseif (substr($chunk,0,2)=="\xff\xfe") $enc= "UTF-16LE";
+ else $enc= NULL;
+
+ if ($enc) $chunk= iconv($enc,"ASCII//IGNORE",$chunk);
+
+ $chunk= trim($chunk);
+
+ #FIXME: convert from UTF-16 if necessarry!
+
+ wfDebug("SpecialUpload::detectScript: checking for embedded scripts and HTML stuff\n");
+
+ #check for HTML doctype
+ if (eregi("<!DOCTYPE *X?HTML",$chunk)) return true;
+
+ /**
+ * Internet Explorer for Windows performs some really stupid file type
+ * autodetection which can cause it to interpret valid image files as HTML
+ * and potentially execute JavaScript, creating a cross-site scripting
+ * attack vectors.
+ *
+ * Apple's Safari browser also performs some unsafe file type autodetection
+ * which can cause legitimate files to be interpreted as HTML if the
+ * web server is not correctly configured to send the right content-type
+ * (or if you're really uploading plain text and octet streams!)
+ *
+ * Returns true if IE is likely to mistake the given file for HTML.
+ * Also returns true if Safari would mistake the given file for HTML
+ * when served with a generic content-type.
+ */
+
+ $tags = array(
+ '<a href',
+ '<body',
+ '<head',
+ '<html', #also in safari
+ '<img',
+ '<pre',
+ '<script', #also in safari
+ '<table'
+ );
+ if( ! $wgAllowTitlesInSVG && $extension !== 'svg' && $mime !== 'image/svg' ) {
+ $tags[] = '<title';
+ }
+
+ foreach( $tags as $tag ) {
+ if( false !== strpos( $chunk, $tag ) ) {
+ return true;
+ }
+ }
+
+ /*
+ * look for javascript
+ */
+
+ #resolve entity-refs to look at attributes. may be harsh on big files... cache result?
+ $chunk = Sanitizer::decodeCharReferences( $chunk );
+
+ #look for script-types
+ if (preg_match('!type\s*=\s*[\'"]?\s*(?:\w*/)?(?:ecma|java)!sim',$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;
+
+ #look for css-style script-urls
+ if (preg_match('!url\s*\(\s*[\'"]?\s*(?:ecma|java)script:!sim',$chunk)) return true;
+
+ wfDebug("SpecialUpload::detectScript: no scripts found\n");
+ return false;
+ }
+
+ function detectScriptInSvg( $filename ) {
+ $check = new XmlTypeCheck( $filename, array( $this, 'checkSvgScriptCallback' ) );
+ return $check->filterMatch;
+ }
+
+ /**
+ * @todo Replace this with a whitelist filter!
+ */
+ function checkSvgScriptCallback( $element, $attribs ) {
+ $stripped = $this->stripXmlNamespace( $element );
+
+ if( $stripped == 'script' ) {
+ wfDebug( __METHOD__ . ": Found script element '$element' in uploaded file.\n" );
+ return true;
+ }
+
+ foreach( $attribs as $attrib => $value ) {
+ $stripped = $this->stripXmlNamespace( $attrib );
+ if( substr( $stripped, 0, 2 ) == 'on' ) {
+ wfDebug( __METHOD__ . ": Found script attribute '$attrib'='value' in uploaded file.\n" );
+ return true;
+ }
+ if( $stripped == 'href' && strpos( strtolower( $value ), 'javascript:' ) !== false ) {
+ wfDebug( __METHOD__ . ": Found script href attribute '$attrib'='$value' in uploaded file.\n" );
+ return true;
+ }
+ }
+ }
+
+ private function stripXmlNamespace( $name ) {
+ // 'http://www.w3.org/2000/svg:script' -> 'script'
+ $parts = explode( ':', strtolower( $name ) );
+ return array_pop( $parts );
+ }
+
+ /**
+ * Generic wrapper function for a virus scanner program.
+ * This relies on the $wgAntivirus and $wgAntivirusSetup variables.
+ * $wgAntivirusRequired may be used to deny upload if the scan fails.
+ *
+ * @param string $file Pathname to the temporary upload file
+ * @return mixed false if not virus is found, NULL if the scan fails or is disabled,
+ * or a string containing feedback from the virus scanner if a virus was found.
+ * If textual feedback is missing but a virus was found, this function returns true.
+ */
+ function detectVirus($file) {
+ global $wgAntivirus, $wgAntivirusSetup, $wgAntivirusRequired, $wgOut;
+
+ if ( !$wgAntivirus ) {
+ wfDebug( __METHOD__.": virus scanner disabled\n");
+ return NULL;
+ }
+
+ if ( !$wgAntivirusSetup[$wgAntivirus] ) {
+ wfDebug( __METHOD__.": unknown virus scanner: $wgAntivirus\n" );
+ $wgOut->wrapWikiMsg( '<div class="error">$1</div>', array( 'virus-badscanner', $wgAntivirus ) );
+ return wfMsg('virus-unknownscanner') . " $wgAntivirus";
+ }
+
+ # look up scanner configuration
+ $command = $wgAntivirusSetup[$wgAntivirus]["command"];
+ $exitCodeMap = $wgAntivirusSetup[$wgAntivirus]["codemap"];
+ $msgPattern = isset( $wgAntivirusSetup[$wgAntivirus]["messagepattern"] ) ?
+ $wgAntivirusSetup[$wgAntivirus]["messagepattern"] : null;
+
+ if ( strpos( $command,"%f" ) === false ) {
+ # simple pattern: append file to scan
+ $command .= " " . wfEscapeShellArg( $file );
+ } else {
+ # complex pattern: replace "%f" with file to scan
+ $command = str_replace( "%f", wfEscapeShellArg( $file ), $command );
+ }
+
+ wfDebug( __METHOD__.": running virus scan: $command \n" );
+
+ # execute virus scanner
+ $exitCode = false;
+
+ #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.
+ $output = array();
+ if ( wfIsWindows() ) {
+ exec( "$command", $output, $exitCode );
+ } else {
+ exec( "$command 2>&1", $output, $exitCode );
+ }
+
+ # map exit code to AV_xxx constants.
+ $mappedCode = $exitCode;
+ if ( $exitCodeMap ) {
+ if ( isset( $exitCodeMap[$exitCode] ) ) {
+ $mappedCode = $exitCodeMap[$exitCode];
+ } elseif ( isset( $exitCodeMap["*"] ) ) {
+ $mappedCode = $exitCodeMap["*"];
+ }
+ }
+
+ if ( $mappedCode === AV_SCAN_FAILED ) {
+ # scan failed (code was mapped to false by $exitCodeMap)
+ wfDebug( __METHOD__.": failed to scan $file (code $exitCode).\n" );
+
+ if ( $wgAntivirusRequired ) {
+ return wfMsg('virus-scanfailed', array( $exitCode ) );
+ } else {
+ return NULL;
+ }
+ } else if ( $mappedCode === AV_SCAN_ABORTED ) {
+ # scan failed because filetype is unknown (probably imune)
+ wfDebug( __METHOD__.": unsupported file type $file (code $exitCode).\n" );
+ return NULL;
+ } else if ( $mappedCode === AV_NO_VIRUS ) {
+ # no virus found
+ wfDebug( __METHOD__.": file passed virus scan.\n" );
+ return false;
+ } else {
+ $output = join( "\n", $output );
+ $output = trim( $output );
+
+ if ( !$output ) {
+ $output = true; #if there's no output, return true
+ } elseif ( $msgPattern ) {
+ $groups = array();
+ if ( preg_match( $msgPattern, $output, $groups ) ) {
+ if ( $groups[1] ) {
+ $output = $groups[1];
+ }
+ }
+ }
+
+ wfDebug( __METHOD__.": FOUND VIRUS! scanner feedback: $output" );
+ return $output;
+ }
+ }
+
+ /**
+ * Check if the temporary file is MacBinary-encoded, as some uploads
+ * from Internet Explorer on Mac OS Classic and Mac OS X will be.
+ * If so, the data fork will be extracted to a second temporary file,
+ * which will then be checked for validity and either kept or discarded.
+ *
+ * @access private
+ */
+ function checkMacBinary() {
+ $macbin = new MacBinary( $this->mTempPath );
+ if( $macbin->isValid() ) {
+ $dataFile = tempnam( wfTempDir(), "WikiMacBinary" );
+ $dataHandle = fopen( $dataFile, 'wb' );
+
+ wfDebug( "SpecialUpload::checkMacBinary: Extracting MacBinary data fork to $dataFile\n" );
+ $macbin->extractData( $dataHandle );
+
+ $this->mTempPath = $dataFile;
+ $this->mFileSize = $macbin->dataForkLength();
+
+ // We'll have to manually remove the new file if it's not kept.
+ $this->mRemoveTempFile = true;
+ }
+ $macbin->close();
+ }
+
+ /**
+ * If we've modified the upload file we need to manually remove it
+ * on exit to clean up.
+ * @access private
+ */
+ function cleanupTempFile() {
+ if ( $this->mRemoveTempFile && file_exists( $this->mTempPath ) ) {
+ wfDebug( "SpecialUpload::cleanupTempFile: Removing temporary file {$this->mTempPath}\n" );
+ unlink( $this->mTempPath );
+ }
+ }
+
+ /**
+ * Check if there's an overwrite conflict and, if so, if restrictions
+ * forbid this user from performing the upload.
+ *
+ * @return mixed true on success, WikiError on failure
+ * @access private
+ */
+ function checkOverwrite( $name ) {
+ $img = wfFindFile( $name );
+
+ $error = '';
+ if( $img ) {
+ global $wgUser, $wgOut;
+ if( $img->isLocal() ) {
+ if( !self::userCanReUpload( $wgUser, $img->name ) ) {
+ $error = 'fileexists-forbidden';
+ }
+ } else {
+ if( !$wgUser->isAllowed( 'reupload' ) ||
+ !$wgUser->isAllowed( 'reupload-shared' ) ) {
+ $error = "fileexists-shared-forbidden";
+ }
+ }
+ }
+
+ if( $error ) {
+ $errorText = wfMsg( $error, wfEscapeWikiText( $img->getName() ) );
+ return $errorText;
+ }
+
+ // Rockin', go ahead and upload
+ return true;
+ }
+
+ /**
+ * Check if a user is the last uploader
+ *
+ * @param User $user
+ * @param string $img, image name
+ * @return bool
+ */
+ public static function userCanReUpload( User $user, $img ) {
+ if( $user->isAllowed( 'reupload' ) )
+ return true; // non-conditional
+ if( !$user->isAllowed( 'reupload-own' ) )
+ return false;
+
+ $dbr = wfGetDB( DB_SLAVE );
+ $row = $dbr->selectRow('image',
+ /* SELECT */ 'img_user',
+ /* WHERE */ array( 'img_name' => $img )
+ );
+ if ( !$row )
+ return false;
+
+ return $user->getId() == $row->img_user;
+ }
+
+ /**
+ * Display an error with a wikitext description
+ */
+ function showError( $description ) {
+ global $wgOut;
+ $wgOut->setPageTitle( wfMsg( "internalerror" ) );
+ $wgOut->setRobotPolicy( "noindex,nofollow" );
+ $wgOut->setArticleRelated( false );
+ $wgOut->enableClientCache( false );
+ $wgOut->addWikiText( $description );
+ }
+
+ /**
+ * Get the initial image page text based on a comment and optional file status information
+ */
+ static function getInitialPageText( $comment, $license, $copyStatus, $source ) {
+ global $wgUseCopyrightUpload;
+ if ( $wgUseCopyrightUpload ) {
+ if ( $license != '' ) {
+ $licensetxt = '== ' . wfMsgForContent( 'license' ) . " ==\n" . '{{' . $license . '}}' . "\n";
+ }
+ $pageText = '== ' . wfMsg ( 'filedesc' ) . " ==\n" . $comment . "\n" .
+ '== ' . wfMsgForContent ( 'filestatus' ) . " ==\n" . $copyStatus . "\n" .
+ "$licensetxt" .
+ '== ' . wfMsgForContent ( 'filesource' ) . " ==\n" . $source ;
+ } else {
+ if ( $license != '' ) {
+ $filedesc = $comment == '' ? '' : '== ' . wfMsg ( 'filedesc' ) . " ==\n" . $comment . "\n";
+ $pageText = $filedesc .
+ '== ' . wfMsgForContent ( 'license' ) . " ==\n" . '{{' . $license . '}}' . "\n";
+ } else {
+ $pageText = $comment;
+ }
+ }
+ return $pageText;
+ }
+
+ /**
+ * If there are rows in the deletion log for this file, show them,
+ * along with a nice little note for the user
+ *
+ * @param OutputPage $out
+ * @param string filename
+ */
+ private function showDeletionLog( $out, $filename ) {
+ global $wgUser;
+ $loglist = new LogEventsList( $wgUser->getSkin(), $out );
+ $pager = new LogPager( $loglist, 'delete', false, $filename );
+ if( $pager->getNumRows() > 0 ) {
+ $out->addHTML( '<div class="mw-warning-with-logexcerpt">' );
+ $out->addWikiMsg( 'upload-wasdeleted' );
+ $out->addHTML(
+ $loglist->beginLogEventsList() .
+ $pager->getBody() .
+ $loglist->endLogEventsList()
+ );
+ $out->addHTML( '</div>' );
+ }
+ }
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff