/**
* generate a private uri
* @param ICalendar $calendar
*/
private function generatePrivateUri(&$calendar)
{
CalendarUtility::generateURI($calendar, function ($suggestedUri, $userId) {
try {
$this->find($suggestedUri, $userId);
return true;
} catch (\Exception $ex) {
return false;
}
}, false);
}
/**
* Generate a unique public uri
* @param \OCA\Calendar\ICalendar $calendar
*/
private function generatePublicUri(ICalendar &$calendar)
{
CalendarUtility::generateURI($calendar, function ($suggestedUri) use($calendar) {
return $this->cache->doesExist($suggestedUri, $calendar->getUserId());
}, true);
$calendar->setPrivateUri($calendar->getPublicUri());
}
/**
* @param string $backendId
* @param string $privateUri
* @param string $userId
* @param ICalendar $usersCalendar
* @return mixed
*/
public function scanCalendar($backendId, $privateUri, $userId, ICalendar &$usersCalendar = null)
{
$backend = $this->backends->find($backendId);
if (!$backend instanceof IBackend) {
$this->logger->debug('Backend \'' . $backendId . '\' not found');
return null;
}
$calendar = $this->getRemoteAndDeleteIfNecessary($backend, $privateUri, $userId);
if (!$calendar) {
return null;
}
$cachedCalendar = $this->getCached($backendId, $privateUri, $userId);
if ($cachedCalendar) {
if ($usersCalendar) {
$calendar = $this->resetUnsupportedProperties($backend, $calendar, $usersCalendar);
} else {
$calendar = $this->resetUnsupportedProperties($backend, $calendar, $cachedCalendar);
}
$cachedCalendar->overwriteWith($calendar);
$this->updateCache($cachedCalendar);
} else {
CalendarUtility::generateURI($calendar, function ($newUri) use($calendar) {
return $this->cache->doesExist($newUri, $calendar->getUserId());
}, true);
$calendar = $this->addToCache($calendar);
if ($usersCalendar) {
$usersCalendar->setId($calendar->getId());
}
}
}