public function IsValid()
{
$key = Configuration::Instance()->GetSectionKey(ConfigSection::ICS, ConfigKeys::ICS_SUBSCRIPTION_KEY);
$providedKey = $this->page->GetSubscriptionKey();
if (empty($key) || $providedKey != $key) {
Log::Debug('Empty or invalid subscription key. Key provided: %s', $providedKey);
return false;
}
$resourceId = $this->page->GetResourceId();
$scheduleId = $this->page->GetScheduleId();
$userId = $this->page->GetUserId();
if (!empty($resourceId)) {
return $this->subscriptionService->GetResource($resourceId)->GetIsCalendarSubscriptionAllowed();
}
if (!empty($scheduleId)) {
return $this->subscriptionService->GetSchedule($scheduleId)->GetIsCalendarSubscriptionAllowed();
}
if (!empty($userId)) {
return $this->subscriptionService->GetUser($userId)->GetIsCalendarSubscriptionAllowed();
}
return true;
}
