/**
* 'beforeMethod' event handles. This event handles intercepts GET requests ending
* with ?export
*
* @param string $method
* @param string $uri
* @return bool
*/
public function beforeMethod($method, $uri)
{
if ($method != 'GET') {
return;
}
if ($this->server->httpRequest->getQueryString() != 'export') {
return;
}
// splitting uri
list($uri) = explode('?', $uri, 2);
$node = $this->server->tree->getNodeForPath($uri);
if (!$node instanceof Calendar) {
return;
}
// Checking ACL, if available.
if ($aclPlugin = $this->server->getPlugin('acl')) {
$aclPlugin->checkPrivileges($uri, '{DAV:}read');
}
$this->server->httpResponse->setHeader('Content-Type', 'text/calendar');
$this->server->httpResponse->sendStatus(200);
$nodes = $this->server->getPropertiesForPath($uri, array('{' . Plugin::NS_CALDAV . '}calendar-data'), 1);
$this->server->httpResponse->sendBody($this->generateICS($nodes));
// Returning false to break the event chain
return false;
}
/**
* Returns free-busy information for a specific address. The returned
* data is an array containing the following properties:
*
* calendar-data : A VFREEBUSY VObject
* request-status : an iTip status code.
* href: The principal's email address, as requested
*
* The following request status codes may be returned:
* * 2.0;description
* * 3.7;description
*
* @param string $email address
* @param \DateTime $start
* @param \DateTime $end
* @param VObject\Component $request
* @return array
*/
protected function getFreeBusyForEmail($email, \DateTime $start, \DateTime $end, VObject\Component $request)
{
$caldavNS = '{' . Plugin::NS_CALDAV . '}';
$aclPlugin = $this->server->getPlugin('acl');
if (substr($email, 0, 7) === 'mailto:') {
$email = substr($email, 7);
}
$result = $aclPlugin->principalSearch(array('{http://sabredav.org/ns}email-address' => $email), array('{DAV:}principal-URL', $caldavNS . 'calendar-home-set', '{http://sabredav.org/ns}email-address'));
if (!count($result)) {
return array('request-status' => '3.7;Could not find principal', 'href' => 'mailto:' . $email);
}
if (!isset($result[0][200][$caldavNS . 'calendar-home-set'])) {
return array('request-status' => '3.7;No calendar-home-set property found', 'href' => 'mailto:' . $email);
}
$homeSet = $result[0][200][$caldavNS . 'calendar-home-set']->getHref();
// Grabbing the calendar list
$objects = array();
foreach ($this->server->tree->getNodeForPath($homeSet)->getChildren() as $node) {
if (!$node instanceof ICalendar) {
continue;
}
$aclPlugin->checkPrivileges($homeSet . $node->getName(), $caldavNS . 'read-free-busy');
// Getting the list of object uris within the time-range
$urls = $node->calendarQuery(array('name' => 'VCALENDAR', 'comp-filters' => array(array('name' => 'VEVENT', 'comp-filters' => array(), 'prop-filters' => array(), 'is-not-defined' => false, 'time-range' => array('start' => $start, 'end' => $end))), 'prop-filters' => array(), 'is-not-defined' => false, 'time-range' => null));
$calObjects = array_map(function ($url) use($node) {
$obj = $node->getChild($url)->get();
return $obj;
}, $urls);
$objects = array_merge($objects, $calObjects);
}
$vcalendar = new VObject\Component\VCalendar();
$vcalendar->VERSION = '2.0';
$vcalendar->METHOD = 'REPLY';
$vcalendar->CALSCALE = 'GREGORIAN';
$vcalendar->PRODID = '-//SabreDAV//SabreDAV ' . DAV\Version::VERSION . '//EN';
$generator = new VObject\FreeBusyGenerator();
$generator->setObjects($objects);
$generator->setTimeRange($start, $end);
$generator->setBaseObject($vcalendar);
$result = $generator->getResult();
$vcalendar->VFREEBUSY->ATTENDEE = 'mailto:' . $email;
$vcalendar->VFREEBUSY->UID = (string) $request->VFREEBUSY->UID;
$vcalendar->VFREEBUSY->ORGANIZER = clone $request->VFREEBUSY->ORGANIZER;
return array('calendar-data' => $result, 'request-status' => '2.0;Success', 'href' => 'mailto:' . $email);
}
