/**
* Helper method to fetch free/busy data for the user and turn it into calendar data
*/
private function fetch_freebusy($limit_changed = null)
{
// ask kolab server first
try {
$request_config = array('store_body' => true, 'follow_redirects' => true);
$request = libkolab::http_request(kolab_storage::get_freebusy_url($this->userdata['mail']), 'GET', $request_config);
$response = $request->send();
// authentication required
if ($response->getStatus() == 401) {
$request->setAuth($this->rc->user->get_username(), $this->rc->decrypt($_SESSION['password']));
$response = $request->send();
}
if ($response->getStatus() == 200) {
$fbdata = $response->getBody();
}
unset($request, $response);
} catch (Exception $e) {
rcube::raise_error(array('code' => 900, 'type' => 'php', 'file' => __FILE__, 'line' => __LINE__, 'message' => "Error fetching free/busy information: " . $e->getMessage()), true, false);
return false;
}
$statusmap = array('FREE' => 'free', 'BUSY' => 'busy', 'BUSY-TENTATIVE' => 'tentative', 'X-OUT-OF-OFFICE' => 'outofoffice', 'OOF' => 'outofoffice');
$titlemap = array('FREE' => $this->cal->gettext('availfree'), 'BUSY' => $this->cal->gettext('availbusy'), 'BUSY-TENTATIVE' => $this->cal->gettext('availtentative'), 'X-OUT-OF-OFFICE' => $this->cal->gettext('availoutofoffice'));
// console('_fetch_freebusy', kolab_storage::get_freebusy_url($this->userdata['mail']), $fbdata);
// parse free-busy information
$count = 0;
if ($fbdata) {
$ical = $this->cal->get_ical();
$ical->import($fbdata);
if ($fb = $ical->freebusy) {
// consider 'changed >= X' queries
if ($limit_changed && $fb['created'] && $fb['created'] < $limit_changed) {
return 0;
}
foreach ($fb['periods'] as $tuple) {
list($from, $to, $type) = $tuple;
$event = array('id' => md5($this->id . $from->format('U') . '/' . $to->format('U')), 'calendar' => $this->id, 'changed' => $fb['created'] ?: new DateTime(), 'title' => $this->get_name() . ' ' . ($titlemap[$type] ?: $type), 'start' => $from, 'end' => $to, 'free_busy' => $statusmap[$type] ?: 'busy', 'className' => 'fc-type-freebusy', 'organizer' => array('email' => $this->userdata['mail'], 'name' => $this->userdata['displayname']));
// avoid duplicate entries
$key = $this->time_key($event);
if (!$this->timeindex[$key]) {
$this->events[$event['id']] = $event;
$this->timeindex[$key] = $event['id'];
$count++;
}
}
}
}
return $count;
}
/**
* Fetch free/busy information from a person within the given range
*/
public function get_freebusy_list($email, $start, $end)
{
if (empty($email)) {
return false;
}
// map vcalendar fbtypes to internal values
$fbtypemap = array('FREE' => calendar::FREEBUSY_FREE, 'BUSY-TENTATIVE' => calendar::FREEBUSY_TENTATIVE, 'X-OUT-OF-OFFICE' => calendar::FREEBUSY_OOF, 'OOF' => calendar::FREEBUSY_OOF);
// ask kolab server first
try {
$request_config = array('store_body' => true, 'follow_redirects' => true);
$request = libkolab::http_request(kolab_storage::get_freebusy_url($email), 'GET', $request_config);
$response = $request->send();
// authentication required
if ($response->getStatus() == 401) {
$request->setAuth($this->rc->user->get_username(), $this->rc->decrypt($_SESSION['password']));
$response = $request->send();
}
if ($response->getStatus() == 200) {
$fbdata = $response->getBody();
}
unset($request, $response);
} catch (Exception $e) {
PEAR::raiseError("Error fetching free/busy information: " . $e->getMessage());
}
// get free-busy url from contacts
if (!$fbdata) {
$fburl = null;
foreach ((array) $this->rc->config->get('autocomplete_addressbooks', 'sql') as $book) {
$abook = $this->rc->get_address_book($book);
if ($result = $abook->search(array('email'), $email, true, true, true)) {
while ($contact = $result->iterate()) {
if ($fburl = $contact['freebusyurl']) {
$fbdata = @file_get_contents($fburl);
break;
}
}
}
if ($fbdata) {
break;
}
}
}
// parse free-busy information using Horde classes
if ($fbdata) {
$ical = $this->cal->get_ical();
$ical->import($fbdata);
if ($fb = $ical->freebusy) {
$result = array();
foreach ($fb['periods'] as $tuple) {
list($from, $to, $type) = $tuple;
$result[] = array($from->format('U'), $to->format('U'), isset($fbtypemap[$type]) ? $fbtypemap[$type] : calendar::FREEBUSY_BUSY);
}
// we take 'dummy' free-busy lists as "unknown"
if (empty($result) && !empty($fb['comment']) && stripos($fb['comment'], 'dummy')) {
return false;
}
// set period from $start till the begin of the free-busy information as 'unknown'
if ($fb['start'] && ($fbstart = $fb['start']->format('U')) && $start < $fbstart) {
array_unshift($result, array($start, $fbstart, calendar::FREEBUSY_UNKNOWN));
}
// pad period till $end with status 'unknown'
if ($fb['end'] && ($fbend = $fb['end']->format('U')) && $fbend < $end) {
$result[] = array($fbend, $end, calendar::FREEBUSY_UNKNOWN);
}
return $result;
}
}
return false;
}
