/**
* Entry point for scheduling on DELETE, for which there are thee outcomes:
* - We don't do scheduling (disabled, no organizer, ...)
* - We are an ATTENDEE declining the meeting.
* - We are the ORGANIZER canceling the meeting.
*
* @param DAVResource $deleted_resource The resource which has already been deleted
*/
function do_scheduling_for_delete(DAVResource $deleted_resource)
{
// By the time we arrive here the resource *has* actually been deleted from disk
// we can only fail to (de-)schedule the activity...
global $request, $c;
if (!isset($request) || isset($c->enable_auto_schedule) && !$c->enable_auto_schedule) {
return true;
}
if ($deleted_resource->IsInSchedulingCollection()) {
return true;
}
$caldav_data = $deleted_resource->GetProperty('dav-data');
if (empty($caldav_data)) {
return true;
}
$vcal = new vCalendar($caldav_data);
$organizer = $vcal->GetOrganizer();
if ($organizer === false || empty($organizer)) {
dbg_error_log('schedule', 'Event has no organizer - no scheduling required.');
return true;
}
if ($vcal->GetScheduleAgent() != 'SERVER') {
dbg_error_log('schedule', 'SCHEDULE-AGENT=%s - no scheduling required.', $vcal->GetScheduleAgent());
return true;
}
$organizer_email = preg_replace('/^mailto:/i', '', $organizer->Value());
if ($request->principal->email() == $organizer_email) {
return doItipOrganizerCancel($vcal);
} else {
if (isset($_SERVER['HTTP_SCHEDULE_REPLY']) && $_SERVER['HTTP_SCHEDULE_REPLY'] == 'F') {
dbg_error_log('schedule', 'Schedule-Reply header set to "F" - no scheduling required.');
return true;
}
return doItipAttendeeReply($vcal, 'DECLINED', $request->principal->email());
}
}
