/**
* @param ISubscription $subscription
* @throws BackendUtils\SubscriptionInvalidException
*/
private function sendTestRequest(ISubscription &$subscription)
{
$curl = curl_init();
$url = $subscription->getUrl();
$data = null;
$this->prepareRequest($curl, $url);
$this->getRequestData($curl, $data);
$this->validateRequest($curl);
try {
$vobject = Reader::read($data);
//Is it an address-book instead of a calendar?
if (!$vobject instanceof VCalendar) {
throw new BackendUtils\SubscriptionInvalidException('Calendar-data is not valid!');
}
} catch (ParseException $ex) {
throw new BackendUtils\SubscriptionInvalidException('Calendar-data is not valid!');
}
}
/**
* validate a subscription
*
* @param ISubscription $subscription
* @throws Exception
*/
private function validateSubscription(ISubscription &$subscription)
{
$backend = $this->backends->bySubscriptionType($subscription->getType());
if ($backend === null) {
throw new Exception('Subscription-type not supported');
}
try {
$backend->getBackendAPI()->validateSubscription($subscription);
} catch (BackendUtils\Exception $ex) {
throw Exception::fromException($ex);
}
}
/**
* validates a subscription's url
* @param ISubscription $subscription
* @throws \OCA\Calendar\Backend\Exception
*/
protected function validateSubscriptionUrl(ISubscription &$subscription)
{
$url = $subscription->getUrl();
$parsed = parse_url($url);
if (!$parsed) {
throw new BackendUtils\Exception('URL not processable');
}
if (!isset($parsed['scheme'])) {
//TODO - try to use https first
$newUrl = 'http://';
$newUrl .= $url;
$subscription->setUrl($newUrl);
$parsed['scheme'] = 'http';
}
if ($parsed['scheme'] === 'webcal') {
$newUrl = preg_replace("/^webcal:/i", "http:", $url);
$subscription->setUrl($newUrl);
$parsed['scheme'] = 'http';
}
if ($parsed['scheme'] !== 'http' && $parsed['scheme'] !== 'https') {
throw new BackendUtils\Exception('Protocol not supported');
}
}
/**
* @param ISubscription $subscription
* @return \OCA\Calendar\IEntity
* @throws CorruptDataException
*/
private function generateCalendar(ISubscription $subscription)
{
$curl = curl_init();
$url = $subscription->getUrl();
$data = null;
//TODO - replace webcal with https or http
$this->prepareRequest($curl, $url);
$this->getRequestData($curl, $data);
$this->validateRequest($curl);
$this->stripOfObjectData($data);
try {
$vobject = Reader::read($data);
//Is it an address-book instead of a calendar?
if (!$vobject instanceof VCalendar) {
throw new ParseException();
}
$calendar = new \OCA\Calendar\Db\Calendar();
$calendar->fromVObject($vobject);
} catch (ParseException $ex) {
throw new CorruptDataException('Calendar-data is not valid!');
}
$calendar->setUserId($subscription->getUserId());
$calendar->setOwnerId($subscription->getUserId());
$calendar->setBackend($this->backend);
$calendar->setPrivateUri($subscription->getId());
$calendar->setComponents(ObjectType::EVENT);
// TODO hardcoding this to events only is bullshit
$calendar->setEnabled(true);
$calendar->setCruds(Permissions::READ);
$calendar->setOrder(0);
//TODO - use something better for ctag
$calendar->setCtag(time());
return $calendar;
}
