forked from extern/egroupware
480 lines
14 KiB
PHP
480 lines
14 KiB
PHP
<?php
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/**
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* eGroupWare API: VFS - WebDAV access
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*
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* Using the PEAR HTTP/WebDAV/Server class (which need to be installed!)
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*
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* @link http://www.egroupware.org
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package api
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* @subpackage vfs
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* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @copyright (c) 2006 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
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* @version $Id$
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*/
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require_once('HTTP/WebDAV/Server.php');
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require_once(EGW_API_INC.'/class.vfs_home.inc.php');
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/**
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* FileManger - WebDAV access
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*
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* Using the PEAR HTTP/WebDAV/Server class (which need to be installed!)
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*/
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class vfs_webdav_server extends HTTP_WebDAV_Server
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{
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/**
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* instance of the vfs class
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*
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* @var vfs_home
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*/
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var $vfs;
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var $dav_powered_by = 'eGroupWare WebDAV server';
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/**
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* Debug level: 0 = nothing, 1 = function calls, 2 = more info, eg. complete $_SERVER array
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*
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* The debug messages are send to the apache error_log
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*
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* @var integer
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*/
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var $debug = 0;
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function vfs_webdav_server()
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{
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if ($this->debug === 2) foreach($_SERVER as $name => $val) error_log("vfs_webdav_server: \$_SERVER[$name]='$val'");
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parent::HTTP_WebDAV_Server();
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$this->vfs =& new vfs_home;
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}
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/**
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* PROPFIND method handler
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*
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* @param array general parameter passing array
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* @param array return array for file properties
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* @return bool true on success
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*/
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function PROPFIND(&$options, &$files)
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{
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$vfs_data = array(
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'string' => $GLOBALS['egw']->translation->convert($options['path'],'utf-8'),
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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// at first only list the given path itself
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'checksubdirs' => False,
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'nofiles' => True
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);
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if (!($vfs_files = $this->vfs->ls($vfs_data))) // path not found
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{
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// check if the users home-dir is just not yet created (should be done by the vfs-class!)
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// ToDo: group-dirs
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if ($vfs_data['string'] == '/home/'.$GLOBALS['egw_info']['user']['account_lid'])
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{
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$this->vfs->override_acl = true; // user has no right to create dir in /home
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$created = $this->vfs->mkdir(array(
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'string' => $GLOBALS['egw']->translation->convert($options['path'],'utf-8'),
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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));
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$this->vfs->override_acl = false;
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if (!$created)
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{
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if ($this->debug) error_log("vfs_webdav_server::PROPFIND(path='$options[path]',depth=$options[depth]) could not create home dir");
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}
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$vfs_files = $this->vfs->ls($vfs_data);
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}
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if (!$vfs_files)
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{
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if ($this->debug) error_log("vfs_webdav_server::PROPFIND(path='$options[path]',depth=$options[depth]) return false (path not found)");
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return false; // path not found
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}
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}
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// if depth > 0 and path is a directory => show it's contents
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if (!empty($options['depth']) && $vfs_files[0]['mime_type'] == 'Directory')
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{
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$vfs_data['checksubdirs'] = (int) $options['depth'] != 1;
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$vfs_data['nofiles'] = false;
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if ($vfs_files[0]['directory'] == '/') // sub-dirs of the root?
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{
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$vfs_files = array(); // dont return the directory, it shows up double in konq
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}
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else // return the dir itself with a trailing slash, otherwise empty dirs are reported as non-existent
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{
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$vfs_files[0]['name'] .= '/';
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}
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$vfs_files = array_merge($vfs_files,$this->vfs->ls($vfs_data));
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}
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if ($this->debug) error_log("vfs_webdav_server::PROPFIND(path='$options[path]',depth=$options[depth]) ".count($vfs_files).' files');
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$files['files'] = array();
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$egw_charset = $GLOBALS['egw']->translation->charset();
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foreach($vfs_files as $fileinfo)
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{
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if ($this->debug) error_log('dir="'.$fileinfo['directory'].'", name="'.$fileinfo['name'].'": '.$fileinfo['mime_type']);
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foreach(array('modified','created') as $date)
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{
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// our vfs has no modified set, if never modified, use created
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list($y,$m,$d,$h,$i,$s) = split("[- :]",$fileinfo[$date] ? $fileinfo[$date] : $fileinfo['created']);
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$fileinfo[$date] = mktime((int)$h,(int)$i,(int)$s,(int)$m,(int)$d,(int)$y);
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}
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$info = array(
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'path' => $GLOBALS['egw']->translation->convert($fileinfo['directory'].'/'.$fileinfo['name'],$egw_charset,'utf-8'),
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'props' => array(
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$this->mkprop('displayname',$GLOBALS['egw']->translation->convert($fileinfo['name'],$egw_charset,'utf-8')),
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$this->mkprop('creationdate',$fileinfo['created']),
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$this->mkprop('getlastmodified',$fileinfo['modified']),
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),
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);
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if ($fileinfo['mime_type'] == 'Directory')
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{
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$info['props'][] = $this->mkprop('resourcetype', 'collection');
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$info['props'][] = $this->mkprop('getcontenttype', 'httpd/unix-directory');
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}
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else
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{
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$info['props'][] = $this->mkprop('resourcetype', '');
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$info['props'][] = $this->mkprop('getcontenttype', $fileinfo['mime_type']);
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$info['props'][] = $this->mkprop('getcontentlength', $fileinfo['size']);
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}
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$files['files'][] = $info;
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}
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if ($this->debug == 2) foreach($files['files'] as $info) error_log(print_r($info,true));
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// ok, all done
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return true;
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}
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/**
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* GET method handler
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*
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* @param array parameter passing array
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* @return bool true on success
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*/
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function GET(&$options)
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{
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if ($this->debug) error_log('vfs_webdav_server::GET('.print_r($options,true).')');
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$vfs_data = array(
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'string' => $GLOBALS['egw']->translation->convert($options['path'],'utf-8'),
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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'checksubdirs' => False,
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'nofiles' => True
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);
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// sanity check
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if (!($vfs_file = $this->vfs->ls($vfs_data)))
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{
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return false;
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}
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$options['mimetype'] = $vfs_file[0]['mime_type'];
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$options['size'] = $vfs_file[0]['size'];
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if (($options['data'] = $this->vfs->read($vfs_data)) === false)
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{
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return '403 Forbidden'; // not sure if this is the right code for access denied
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}
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return true;
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}
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/**
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* PUT method handler
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*
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* @param array parameter passing array
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* @return bool true on success
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*/
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function PUT(&$options)
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{
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if ($this->debug) error_log('vfs_webdav_server::PUT('.print_r($options,true).')');
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$vfs_data = array(
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'string' => dirname($GLOBALS['egw']->translation->convert($options['path'],'utf-8')),
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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'checksubdirs' => False,
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'nofiles' => True
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);
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if (!($vfs_file = $this->vfs->ls($vfs_data)) || $vfs_file[0]['mime_type'] != 'Directory')
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{
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return '409 Conflict';
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}
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$vfs_data = array(
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'string' => $GLOBALS['egw']->translation->convert($options['path'],'utf-8'),
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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);
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$options['new'] = !$this->vfs->file_exists($vfs_data);
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$vfs_data['content'] = '';
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while(!feof($options['stream']))
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{
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$vfs_data['content'] .= fread($options['stream'],8192);
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}
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return $this->vfs->write($vfs_data);
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}
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/**
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* MKCOL method handler
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*
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* @param array general parameter passing array
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* @return bool true on success
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*/
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function MKCOL($options)
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{
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if ($this->debug) error_log('vfs_webdav_server::MKCOL('.print_r($options,true).')');
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$vfs_data = array(
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'string' => dirname($GLOBALS['egw']->translation->convert($options['path'],'utf-8')),
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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'checksubdirs' => False,
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'nofiles' => True
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);
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if (!($vfs_file = $this->vfs->ls($vfs_data)))
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{
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return '409 Conflict';
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}
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if ($this->debug) error_log(print_r($vfs_file,true));
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if ($vfs_file[0]['mime_type'] != 'Directory')
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{
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return '403 Forbidden';
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}
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$vfs_data = array(
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'string' => $GLOBALS['egw']->translation->convert($options['path'],'utf-8'),
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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);
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if ($this->vfs->file_exists($vfs_data) )
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{
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return '405 Method not allowed';
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}
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if (!empty($_SERVER['CONTENT_LENGTH'])) // no body parsing yet
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{
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return '415 Unsupported media type';
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}
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if (!$this->vfs->mkdir($vfs_data))
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{
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return '403 Forbidden';
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}
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return '201 Created';
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}
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/**
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* DELETE method handler
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*
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* @param array general parameter passing array
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* @return bool true on success
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*/
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function DELETE($options)
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{
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if ($this->debug) error_log('vfs_webdav_server::DELETE('.print_r($options,true).')');
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$vfs_data = array(
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'string' => $GLOBALS['egw']->translation->convert($options['path'],'utf-8'),
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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);
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if (!$this->vfs->file_exists($vfs_data))
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{
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return '404 Not found';
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}
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if (!$this->vfs->rm($vfs_data))
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{
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return '403 Forbidden';
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}
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return '204 No Content';
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}
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/**
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* MOVE method handler
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*
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* @param array general parameter passing array
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* @return bool true on success
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*/
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function MOVE($options)
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{
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return $this->COPY($options, true);
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}
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/**
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* COPY method handler
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*
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* @param array general parameter passing array
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* @return bool true on success
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*/
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function COPY($options, $del=false)
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{
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if ($this->debug) error_log('vfs_webdav_server::'.($del ? 'MOVE' : 'COPY').'('.print_r($options,true).')');
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// TODO Property updates still broken (Litmus should detect this?)
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if (!empty($_SERVER['CONTENT_LENGTH'])) // no body parsing yet
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{
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return '415 Unsupported media type';
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}
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// no copying to different WebDAV Servers yet
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if (isset($options['dest_url']))
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{
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return '502 bad gateway';
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}
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$source = array(
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'string' => $GLOBALS['egw']->translation->convert($options['path'],'utf-8'),
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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);
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if (!$this->vfs->file_exists($source))
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{
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return '404 Not found';
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}
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$dest = array(
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'string' => $options['dest'],
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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);
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$new = !$this->vfs->file_exists($dest);
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$existing_col = false;
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if (!$new)
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{
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if ($del && $this->vfs->file_type($dest) == 'Directory')
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{
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if (!$options['overwrite'])
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{
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return '412 precondition failed';
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}
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$dest['string'] .= basename($GLOBALS['egw']->translation->convert($options['path'],'utf-8'));
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if ($this->vfs->file_exists($dest))
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{
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$options['dest'] .= basename($GLOBALS['egw']->translation->convert($options['path'],'utf-8'));
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}
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else
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{
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$new = true;
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$existing_col = true;
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}
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}
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}
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if (!$new)
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{
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if ($options['overwrite'])
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{
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$stat = $this->DELETE(array('path' => $options['dest']));
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if (($stat{0} != '2') && (substr($stat, 0, 3) != '404'))
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{
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return $stat;
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}
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}
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else
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{
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return '412 precondition failed';
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}
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}
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if ($this->vfs->file_type($source) == 'Directory' && ($options['depth'] != 'infinity'))
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{
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// RFC 2518 Section 9.2, last paragraph
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return '400 Bad request';
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}
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$op = $del ? 'mv' : 'cp';
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$vfs_data = array(
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'from' => $source['string'],
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'to' => $dest['string'],
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'relatives' => array(RELATIVE_ROOT,RELATIVE_ROOT)
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);
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if (!$this->vfs->$op($vfs_data))
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{
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return '500 Internal server error';
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}
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return ($new && !$existing_col) ? '201 Created' : '204 No Content';
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}
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/**
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* PROPPATCH method handler
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*
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* The current version only allows Webdrive to set creation and modificaton dates.
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* They are not stored as (arbitrary) WebDAV properties with their own namespace and name,
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* but in the regular vfs attributes.
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*
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* @todo Store a properties in the DB and retrieve them in PROPFIND again.
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* @param array general parameter passing array
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* @return bool true on success
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*/
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function PROPPATCH(&$options)
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{
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foreach ($options["props"] as $key => $prop) {
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$attributes = array();
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switch($prop['ns'])
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{
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// allow Webdrive to set creation and modification time
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case 'http://www.southrivertech.com/':
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switch($prop['name'])
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{
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case 'srt_modifiedtime':
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case 'getlastmodified':
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$attributes['modified'] = strtotime($prop['val']);
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break;
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case 'srt_creationtime':
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$attributes['created'] = strtotime($prop['val']);
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break;
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}
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break;
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case 'DAV:':
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switch($prop['name'])
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{
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// allow netdrive to change the modification time
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case 'getlastmodified':
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$attributes['modified'] = strtotime($prop['val']);
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break;
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// not sure why, the filesystem example of the WebDAV class does it ...
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default:
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$options["props"][$key]['status'] = "403 Forbidden";
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break;
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}
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break;
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}
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if ($this->debug) $props[] = '('.$prop["ns"].')'.$prop['name'].'='.$prop['val'];
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}
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if ($attributes)
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{
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$vfs_data = array(
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'string' => $GLOBALS['egw']->translation->convert($options['path'],'utf-8'),
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'relatives' => array(RELATIVE_ROOT), // filename is relative to the vfs-root
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'attributes'=> $attributes,
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);
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$this->vfs->set_attributes($vfs_data);
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}
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if ($this->debug)
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{
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error_log(__CLASS__.'::'.__METHOD__.": path=$options[path], props=".implode(', ',$props));
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if ($attributes) error_log(__CLASS__.'::'.__METHOD__.": path=$options[path], set attributes=".str_replace("\n",' ',print_r($attributes,true)));
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}
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return ""; // this is as the filesystem example handler does it, no true or false ...
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}
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/**
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* auth check in the session creation in dav.php, to avoid being redirected to login.php
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*
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* @param string $type
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* @param string $login account_lid or account_lid@domain
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* @param string $password this is checked in the session creation
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* @return boolean true if authorized or false otherwise
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*/
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function checkAuth($type,$login,$password)
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{
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list($account_lid,$domain) = explode('@',$login);
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$auth = ($login === $GLOBALS['egw_info']['user']['account_lid'] ||
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($account_lid === $GLOBALS['egw_info']['user']['account_lid'] && $domain === $GLOBALS['egw']->session->account_domain)) &&
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$GLOBALS['egw_info']['user']['apps']['filemanager'];
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if ($this->debug) error_log("vfs_webdav_server::checkAuth('$type','$login','\$password'): account_lid='$account_lid', domain='$domain' ==> ".(int)$auth);
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return $auth;
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}
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} |