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Aggregate shared but unsubscribed calendar folders and free/busy data into a 'user calendar'

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This commit is contained in:
Thomas Bruederli 2014-05-19 12:18:39 +02:00
parent fd3f93d64e
commit 073a6bb373
2 changed files with 157 additions and 4 deletions
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156
plugins/calendar/drivers/kolab/kolab_user_calendar.php
View file

@ -30,6 +30,7 @@ class kolab_user_calendar extends kolab_calendar
public $subscriptions = false;
protected $userdata = array();
protected $timeindex = array();
/**
@ -165,9 +166,158 @@ class kolab_user_calendar extends kolab_calendar
*/
public function list_events($start, $end, $search = null, $virtual = 1, $query = array())
{
// TODO: implement this
console('kolab_user_calendar::list_events()');
return array();
// convert to DateTime for comparisons
try {
$start_dt = new DateTime('@'.$start);
}
catch (Exception $e) {
$start_dt = new DateTime('@0');
}
try {
$end_dt = new DateTime('@'.$end);
}
catch (Exception $e) {
$end_dt = new DateTime('today +10 years');
}
$limit_changed = null;
if (!empty($query)) {
foreach ($query as $q) {
if ($q[0] == 'changed' && $q[1] == '>=') {
try { $limit_changed = new DateTime('@'.$q[2]); }
catch (Exception $e) { /* ignore */ }
}
}
}
// aggregate all calendar folders the user shares (but are not subscribed)
foreach (kolab_storage::list_user_folders($this->userdata, 'event', false) as $foldername) {
if (!kolab_storage::folder_is_subscribed($foldername, true)) {
$cal = new kolab_calendar($foldername, $this->cal);
foreach ($cal->list_events($start, $end, $search, 1) as $event) {
$this->events[$event['id']] = $event;
$this->timeindex[$this->time_key($event)] = $event['id'];
}
}
}
// get events from the user's free/busy feed
$this->fetch_freebusy($limit_changed);
$events = array();
foreach ($this->events as $id => $event) {
// list events in requested time window
if ($event['start'] <= $end_dt && $event['end'] >= $start_dt &&
(!$limit_changed || !$event['changed'] || $event['changed'] >= $limit_changed)) {
$events[] = $event;
}
}
return $events;
}
/**
* Helper method to fetch free/busy data for the user and turn it into calendar data
*/
private function fetch_freebusy($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 using Horde classes
$count = 0;
if ($fbdata) {
$ical = $this->cal->get_ical();
$ical->import($fbdata);
if ($fb = $ical->freebusy) {
$result = array();
// consider 'changed >= X' queries
if ($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' => $titlemap[$type] ?: $type,
'start' => $from,
'end' => $to,
'free_busy' => $statusmap[$type] ?: 'busy',
'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 $count;
}
/**
* Helper to build a key for the absolute time slot the given event convers
*/
private function time_key($event)
{
return sprintf('%s/%s', $event['start']->format('U'), is_object($event['end']->format('U')) ?: '0');
}

5
plugins/libcalendaring/libvcalendar.php
View file

@ -673,9 +673,12 @@ class libvcalendar implements Iterator
continue;
switch ($prop->name) {
case 'CREATED':
case 'LAST-MODIFIED':
case 'DTSTAMP':
case 'DTSTART':
case 'DTEND':
$propmap = array('DTSTART' => 'start', 'DTEND' => 'end');
$propmap = array('DTSTART' => 'start', 'DTEND' => 'end', 'CREATED' => 'created', 'LAST-MODIFIED' => 'changed', 'DTSTAMP' => 'changed');
$this->freebusy[$propmap[$prop->name]] = self::convert_datetime($prop);
break;