egroupware/infolog/inc/class.infolog_groupdav.inc.php

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<?php
/**
* eGroupWare: GroupDAV access: infolog handler
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package infolog
* @subpackage groupdav
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @copyright (c) 2007/8 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @version $Id$
*/
/**
* eGroupWare: GroupDAV access: infolog handler
*/
class infolog_groupdav extends groupdav_handler
{
/**
* bo class of the application
*
* @var infolog_bo
*/
var $bo;
/**
* Constructor
*
* @param string $app 'calendar', 'addressbook' or 'infolog'
* @param int $debug=null debug-level to set
* @param string $base_uri=null base url of handler
*/
function __construct($app,$debug=null,$base_uri=null)
{
parent::__construct($app,$debug,$base_uri);
$this->bo =& new infolog_bo();
}
/**
* Handle propfind in the infolog folder
*
* @param string $path
* @param array $options
* @param array &$files
* @param int $user account_id
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
*/
function propfind($path,$options,&$files,$user,$id='')
{
// todo add a filter to limit how far back entries from the past get synced
$filter = array(
'info_type' => 'task',
);
if ($id) $filter['info_id'] = $id; // propfind on a single id
// ToDo: add parameter to only return id & etag
if (($tasks = $this->bo->search($params=array(
'order' => 'info_datemodified',
'sort' => 'DESC',
'filter' => 'own', // filter my: entries user is responsible for,
// filter own: entries the user own or is responsible for
'col_filter' => $filter,
))))
{
foreach($tasks as $task)
{
$files['files'][] = array(
'path' => '/infolog/'.$task['info_id'].'.ics',
'props' => array(
HTTP_WebDAV_Server::mkprop('getetag',$this->get_etag($task)),
HTTP_WebDAV_Server::mkprop('getcontenttype', strpos($_SERVER['HTTP_USER_AGENT'],'KHTML') === false ?
'text/calendar; charset=utf-8; component=VTODO' : 'text/calendar'), // Konqueror (3.5) dont understand it otherwise
// getlastmodified and getcontentlength are required by WebDAV and Cadaver eg. reports 404 Not found if not set
HTTP_WebDAV_Server::mkprop('getlastmodified', $task['info_datemodified']),
HTTP_WebDAV_Server::mkprop('getcontentlength',''),
),
);
}
}
return true;
}
/**
* Handle get request for a task / infolog entry
*
* @param array &$options
* @param int $id
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
*/
function get(&$options,$id)
{
if (!is_array($task = $this->_common_get_put_delete('GET',$options,$id)))
{
return $task;
}
$handler = new infolog_ical();
$options['data'] = $handler->exportVTODO($id,'2.0',false,false); // keep UID the client set and no extra charset attributes
$options['mimetype'] = 'text/calendar; charset=utf-8';
header('Content-Encoding: identity');
header('ETag: '.$this->get_etag($task));
return true;
}
/**
* Handle put request for a task / infolog entry
*
* @param array &$options
* @param int $id
* @param int $user=null account_id of owner, default null
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
*/
function put(&$options,$id,$user=null)
{
$ok = $this->_common_get_put_delete('PUT',$options,$id);
if (!is_null($ok) && !is_array($ok))
{
return $ok;
}
$handler = new infolog_ical();
if (!($info_id = $handler->importVTODO($options['content'],is_numeric($id) ? $id : -1)))
{
if ($this->debug) error_log(__METHOD__."(,$id) import_vtodo($options[content]) returned false");
return '403 Forbidden';
}
header('ETag: '.$this->get_etag($info_id));
if (is_null($ok) || $id != $info_id)
{
header('Location: '.$this->base_uri.'/infolog/'.$info_id);
return '201 Created';
}
return true;
}
/**
* Handle delete request for a task / infolog entry
*
* @param array &$options
* @param int $id
* @return mixed boolean true on success, false on failure or string with http status (eg. '404 Not Found')
*/
function delete(&$options,$id)
{
if (!is_array($task = $this->_common_get_put_delete('DELETE',$options,$id)))
{
return $task;
}
return $this->bo->delete($id);
}
/**
* Read an entry
*
* @param string/id $id
* @return array/boolean array with entry, false if no read rights, null if $id does not exist
*/
function read($id)
{
return $this->bo->read($id,false);
}
/**
* Check if user has the neccessary rights on a task / infolog entry
*
* @param int $acl EGW_ACL_READ, EGW_ACL_EDIT or EGW_ACL_DELETE
* @param array/int $task task-array or id
* @return boolean null if entry does not exist, false if no access, true if access permitted
*/
function check_access($acl,$task)
{
return $this->bo->check_access($task,$acl);
}
/**
* Get the etag for an infolog entry
*
* @param array/int $info array with infolog entry or info_id
* @return string/boolean string with etag or false
*/
function get_etag($info)
{
if (!is_array($info))
{
$info = $this->bo->read($info);
}
if (!is_array($info) || !isset($info['info_id']) || !isset($info['info_datemodified']))
{
return false;
}
return '"'.$info['info_id'].':'.$info['info_datemodified'].'"';
}
}