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) 2007-9 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
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* @param string $principalURL=null pricipal url of handler
*/
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function __construct($app,$debug=null,$base_uri=null,$principalURL=null)
{
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parent::__construct($app,$debug,$base_uri,$principalURL);
$this->bo = new infolog_bo();
}
const PATH_ATTRIBUTE = 'info_id';
/**
* Create the path for an event
*
* @param array|int $info
* @return string
*/
static function get_path($info)
{
if (is_numeric($info) && self::PATH_ATTRIBUTE == 'info_id')
{
$name = $info;
}
else
{
if (!is_array($info)) $info = $this->bo->read($info);
$name = $info[self::PATH_ATTRIBUTE];
}
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return $name.'.ics';
}
/**
* 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='')
{
$starttime = microtime(true);
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$myself = ($user == $GLOBALS['egw_info']['user']['account_id']);
if ($options['filters'])
{
foreach($options['filters'] as $filter)
{
switch($filter['name'])
{
case 'comp-filter':
if ($this->debug > 1) error_log(__METHOD__."($options[path],...) comp-filter='{$filter['attrs']['name']}'");
switch($filter['attrs']['name'])
{
case 'VCALENDAR':
continue;
case 'VTODO':
break 3;
default: // We don't handle this
return false;
}
}
}
}
// check if we have to return the full calendar data or just the etag's
if (!($calendar_data = $options['props'] == 'all' && $options['root']['ns'] == groupdav::CALDAV) && is_array($options['props']))
{
foreach($options['props'] as $prop)
{
if ($prop['name'] == 'calendar-data')
{
$calendar_data = true;
break;
}
}
}
// todo add a filter to limit how far back entries from the past get synced
$filter = array(
'info_type' => 'task',
);
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//if (!$myself) $filter['info_owner'] = $user;
if ($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',
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'filter' => ($myself ? 'own' : 'own'), // filter my: entries user is responsible for,
// filter own: entries the user own or is responsible for
'date_format' => 'server',
'col_filter' => $filter,
))))
{
foreach($tasks as &$task)
{
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$props = array(
HTTP_WebDAV_Server::mkprop('getetag',$this->get_etag($task)),
HTTP_WebDAV_Server::mkprop('getcontenttype',$this->agent != 'kde' ?
'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', $task['info_datemodified']),
HTTP_WebDAV_Server::mkprop('resourcetype',''), // DAVKit requires that attribute!
HTTP_WebDAV_Server::mkprop('getcontentlength',''),
);
if ($calendar_data)
{
$handler = $this->_get_handler();
$content = $handler->exportVTODO($task,'2.0','PUBLISH');
$props[] = HTTP_WebDAV_Server::mkprop('getcontentlength',bytes($content));
$props[] = HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-data',$content);
}
else
{
$props[] = HTTP_WebDAV_Server::mkprop('getcontentlength', ''); // expensive to calculate and no CalDAV client uses it
}
$files['files'][] = array(
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'path' => $path.self::get_path($task),
'props' => $props,
);
}
}
if ($this->debug) error_log(__METHOD__."($path) took ".(microtime(true) - $starttime).' to return '.count($files['files']).' items');
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 = $this->_get_handler();
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$options['data'] = $handler->exportVTODO($id,'2.0','PUBLISH');
$options['mimetype'] = 'text/calendar; charset=utf-8';
header('Content-Encoding: identity');
header('ETag: '.$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)
{
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if ($this->debug) error_log(__METHOD__."($id, $user)".print_r($options,true));
$oldTask = $this->_common_get_put_delete('PUT',$options,$id);
if (!is_null($oldTask) && !is_array($oldTask))
{
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return $oldTask;
}
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$handler = $this->_get_handler();
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$vTodo = htmlspecialchars_decode($options['content']);
if (is_array($oldTask))
{
$taskId = $oldTask['info_id'];
$retval = true;
}
else
{
// new entry?
if (($foundTasks = $handler->searchVTODO($vTodo)))
{
if (($taskId = array_shift($foundTasks)) &&
($oldTask = $this->bo->read($taskId)))
{
$retval = '301 Moved Permanently';
}
else
{
// to be safe
$taskId = -1;
$retval = '201 Created';
}
}
else
{
// new entry
$taskId = -1;
$retval = '201 Created';
}
}
if (!($infoId = $handler->importVTODO($vTodo, $taskId, false, $user)))
{
if ($this->debug) error_log(__METHOD__."(,$id) import_vtodo($options[content]) returned false");
return '403 Forbidden';
}
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if ($infoId != $taskId) $retval = '201 Created';
header('ETag: '.$this->get_etag($infoId));
if ($retval !== true)
{
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$path = preg_replace('|(.*)/[^/]*|', '\1/', $options['path']);
header('Location: '.$this->base_uri.$path.self::get_path($infoId));
return $retval;
}
return true;
}
/**
* Handle delete request for a task / infolog entry
*
* @param array &$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,'server');
}
/**
* 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,true,'server');
}
if (!is_array($info) || !isset($info['info_id']) || !isset($info['info_datemodified']))
{
return false;
}
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return 'EGw-'.$info['info_id'].':'.$info['info_datemodified'].'-wGE';
}
/**
* Add extra properties for calendar collections
*
* @param array $props=array() regular props by the groupdav handler
* @param string $displayname
* @param string $base_uri=null base url of handler
* @return array
*/
static function extra_properties(array $props=array(), $displayname, $base_uri=null)
{
// calendar description
$displayname = $GLOBALS['egw']->translation->convert(lang('Tasks of') . ' ' .
$displayname,
$GLOBALS['egw']->translation->charset(),'utf-8');
$props[] = HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-description',$displayname);
// email of the current user, see caldav-sheduling draft
$props[] = HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-user-address-set',array(
HTTP_WebDAV_Server::mkprop('href','MAILTO:'.$GLOBALS['egw_info']['user']['email'])));
// supported components, currently only VEVENT
$props[] = HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'supported-calendar-component-set',array(
// HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'comp',array('name' => 'VEVENT')),
HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'comp',array('name' => 'VTODO')),
));
$props[] = HTTP_WebDAV_Server::mkprop('supported-report-set',array(
HTTP_WebDAV_Server::mkprop('supported-report',array(
HTTP_WebDAV_Server::mkprop('report',
HTTP_WebDAV_Server::mkprop(groupdav::CALDAV,'calendar-multiget'))))));
return $props;
}
/**
* Get the handler and set the supported fields
*
* @return infolog_ical
*/
private function _get_handler()
{
$handler = new infolog_ical();
$handler->setSupportedFields('GroupDAV',$this->agent);
return $handler;
}
}