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<?php /* -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* # ***** BEGIN LICENSE BLOCK ***** # This file is part of InDefero, an open source project management application. # Copyright (C) 2008-2011 Céondo Ltd and contributors. # # InDefero is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # InDefero is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA # # ***** END LICENSE BLOCK ***** */ class IDF_Form_UploadArchiveHelper { private $file = null; private $entries = array (); public function __construct( $file ) { $this ->file = $file ; } /** * Validates the archive; throws a invalid form exception in case the * archive contains invalid data or cannot be read. */ public function validate() { if (! file_exists ( $this ->file)) { throw new Pluf_Form_Invalid(__( 'The archive does not exist.' )); } $za = new ZipArchive(); $res = $za ->open( $this ->file); if ( $res !== true) { throw new Pluf_Form_Invalid( sprintf(__( 'The archive could not be read (code %d).' ), $res )); } $manifest = $za ->getFromName( 'manifest.xml' ); if ( $manifest === false) { throw new Pluf_Form_Invalid(__( 'The archive does not contain a manifest.xml.' )); } libxml_use_internal_errors(true); $xml = @simplexml_load_string( $manifest ); if ( $xml === false) { $error = libxml_get_last_error(); throw new Pluf_Form_Invalid( sprintf(__( 'The archive\'s manifest is invalid: %s' ), $error ->message)); } foreach (@ $xml ->file as $idx => $file ) { $entry = array ( 'name' => (string)@ $file ->name, 'summary' => (string)@ $file ->summary, 'description' => (string)@ $file ->description, 'replaces' => (string)@ $file ->replaces, 'labels' => array (), 'stream' => null ); if ( empty ( $entry [ 'name' ])) { throw new Pluf_Form_Invalid( sprintf(__( 'The entry %d in the manifest is missing a file name.' ), $idx )); } if ( empty ( $entry [ 'summary' ])) { throw new Pluf_Form_Invalid( sprintf(__( 'The entry %d in the manifest is missing a summary.' ), $idx )); } if ( $entry [ 'name' ] === 'manifest.xml' ) { throw new Pluf_Form_Invalid(__( 'The manifest must not reference itself.' )); } if ( $za ->locateName( $entry [ 'name' ]) === false) { throw new Pluf_Form_Invalid( sprintf(__( 'The entry %s in the manifest does not exist in the archive.' ), $entry [ 'name' ])); } if (in_array( $entry [ 'name' ], $this ->entries)) { throw new Pluf_Form_Invalid( sprintf(__( 'The entry %s in the manifest is referenced more than once.' ), $entry [ 'name' ])); } if ( $file ->labels) { foreach (@ $file ->labels->label as $label ) { $entry [ 'labels' ][] = (string) $label ; } } // FIXME: remove this once we allow more than six labels everywhere if ( count ( $entry [ 'labels' ]) > 6) { throw new Pluf_Form_Invalid( sprintf(__( 'The entry %s in the manifest has more than the six allowed labels set.' ), $entry [ 'name' ])); } $this ->entries[ $entry [ 'name' ]] = $entry ; } $za ->close(); } /** * Returns all entry names * * @return array of string */ public function getEntryNames() { return array_keys ( $this ->entries); } /** * Returns meta data for the given entry * * @param string $name * @throws Exception */ public function getMetaData( $name ) { if (! array_key_exists ( $name , $this ->entries)) { throw new Exception( 'unknown file ' . $name ); } return $this ->entries[ $name ]; } /** * Extracts the file entry $name at $path * * @param string $name * @param string $path * @throws Exception */ public function extract( $name , $path ) { if (! array_key_exists ( $name , $this ->entries)) { throw new Exception( 'unknown file ' . $name ); } $za = new ZipArchive(); $za ->open( $this ->file); $za ->extractTo( $path , $name ); $za ->close(); } } |