/**
* This method is responsible for parsing a free-busy query request and
* returning it's result.
*
* @param Schedule\IOutbox $outbox
* @param string $request
* @return string
*/
protected function handleFreeBusyRequest(Schedule\IOutbox $outbox, VObject\Component $vObject)
{
$vFreeBusy = $vObject->VFREEBUSY;
$organizer = $vFreeBusy->organizer;
$organizer = (string) $organizer;
// Validating if the organizer matches the owner of the inbox.
$owner = $outbox->getOwner();
$caldavNS = '{' . Plugin::NS_CALDAV . '}';
$uas = $caldavNS . 'calendar-user-address-set';
$props = $this->server->getProperties($owner, array($uas));
if (empty($props[$uas]) || !in_array($organizer, $props[$uas]->getHrefs())) {
throw new DAV\Exception\Forbidden('The organizer in the request did not match any of the addresses for the owner of this inbox');
}
if (!isset($vFreeBusy->ATTENDEE)) {
throw new DAV\Exception\BadRequest('You must at least specify 1 attendee');
}
$attendees = array();
foreach ($vFreeBusy->ATTENDEE as $attendee) {
$attendees[] = (string) $attendee;
}
if (!isset($vFreeBusy->DTSTART) || !isset($vFreeBusy->DTEND)) {
throw new DAV\Exception\BadRequest('DTSTART and DTEND must both be specified');
}
$startRange = $vFreeBusy->DTSTART->getDateTime();
$endRange = $vFreeBusy->DTEND->getDateTime();
$results = array();
foreach ($attendees as $attendee) {
$results[] = $this->getFreeBusyForEmail($attendee, $startRange, $endRange, $vObject);
}
$dom = new \DOMDocument('1.0', 'utf-8');
$dom->formatOutput = true;
$scheduleResponse = $dom->createElement('cal:schedule-response');
foreach ($this->server->xmlNamespaces as $namespace => $prefix) {
$scheduleResponse->setAttribute('xmlns:' . $prefix, $namespace);
}
$dom->appendChild($scheduleResponse);
foreach ($results as $result) {
$response = $dom->createElement('cal:response');
$recipient = $dom->createElement('cal:recipient');
$recipientHref = $dom->createElement('d:href');
$recipientHref->appendChild($dom->createTextNode($result['href']));
$recipient->appendChild($recipientHref);
$response->appendChild($recipient);
$reqStatus = $dom->createElement('cal:request-status');
$reqStatus->appendChild($dom->createTextNode($result['request-status']));
$response->appendChild($reqStatus);
if (isset($result['calendar-data'])) {
$calendardata = $dom->createElement('cal:calendar-data');
$calendardata->appendChild($dom->createTextNode(str_replace("\r\n", "\n", $result['calendar-data']->serialize())));
$response->appendChild($calendardata);
}
$scheduleResponse->appendChild($response);
}
$this->server->httpResponse->sendStatus(200);
$this->server->httpResponse->setHeader('Content-Type', 'application/xml');
$this->server->httpResponse->sendBody($dom->saveXML());
}