Your IP : 3.147.28.158
<?
abstract class CDavGroupdavHandler
{
protected $application;
protected $groupdav;
protected $httpIfMatch;
/**
* CDavGroupdavHandler constructor.
* @param CDavGroupDav $groupdav
* @param $application
*/
public function __construct($groupdav, $application)
{
$this->groupdav = $groupdav;
$this->application = $application;
}
/* Check if user has the neccessary rights on an entry */
abstract function CheckPrivileges($testPrivileges, $principal, $collectionId);
abstract function CheckPrivilegesByPath($testPrivileges, $principal, $siteId, $account, $arPath);
abstract protected function GetMethodMinimumPrivilege($method);
public function GetApplication()
{
return $this->application;
}
/**
* @param CDavGroupDav $groupdav
* @param $application
* @return mixed|null
*/
public static function &GetApplicationHandler($groupdav, $application)
{
static $handlerCache = array();
if (!array_key_exists($application, $handlerCache))
{
$h = 'CDav' . strtoupper(substr($application, 0, 1)) . substr($application, 1) . 'Handler';
if (!class_exists($h))
return null;
$handlerCache[$application] = new $h($groupdav, $application);
}
return $handlerCache[$application];
}
public function GetEntry($method, $id, $collectionId)
{
$entry = $this->Read($collectionId, $id);
if (!$entry && ($method != 'PUT' || $entry === false))
return ($entry === false) ? '403 Forbidden' : '404 Not Found';
$minimumPrivilege = $this->GetMethodMinimumPrivilege($method);
$request = $this->groupdav->GetRequest();
if (!$this->CheckPrivileges($minimumPrivilege, $request->GetPrincipal(), $collectionId))
return '403 Forbidden';
if ($entry)
{
$etag = $this->GetETag($collectionId, $entry);
// If the clients sends an "If-Match" header ($_SERVER['HTTP_IF_MATCH']) we check with the current etag
// of the calendar --> on failure we return 412 Precondition failed, to not overwrite the modifications
if ($request->GetParameter('HTTP_IF_MATCH') !== null)
{
$m = $request->GetParameter('HTTP_IF_MATCH');
if (strstr($m, $etag) === false)
{
$this->httpIfMatch = $m;
return '412 Precondition Failed';
}
else
{
$this->httpIfMatch = $etag;
// if an IF_NONE_MATCH is given, check if we need to send a new export, or the current one is still up-to-date
if ($method == 'GET' && $request->GetParameter('HTTP_IF_NONE_MATCH') !== null)
return '304 Not Modified';
}
}
// Workaround for Mac OS X Lion > 10.7.3
// if ($request->GetParameter('HTTP_IF_NONE_MATCH') !== null)
// {
// $m = $request->GetParameter('HTTP_IF_NONE_MATCH');
// if (strstr($m, $etag) !== false || $m == '*')
// {
// Do nothing!
// Mac OS X Lion > 10.7.3 is sending a one more request after event creating or modifying.
// If we will return 304, iCal will always create new events with title "New event"
//return '304 Not Modified';
// }
// else
// {
//return '412 Precondition Failed';
// }
// }
}
return $entry;
}
}
?>