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diff --git a/plugins/calendar/drivers/kolab/kolab_calendar.php b/plugins/calendar/drivers/kolab/kolab_calendar.php
index 44465ebb..8667b4da 100644
--- a/plugins/calendar/drivers/kolab/kolab_calendar.php
+++ b/plugins/calendar/drivers/kolab/kolab_calendar.php
@@ -1,896 +1,899 @@
<?php
/**
* Kolab calendar storage class
*
* @version @package_version@
* @author Thomas Bruederli <bruederli@kolabsys.com>
* @author Aleksander Machniak <machniak@kolabsys.com>
*
* Copyright (C) 2012-2015, Kolab Systems AG <contact@kolabsys.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
class kolab_calendar extends kolab_storage_folder_api
{
public $ready = false;
public $rights = 'lrs';
public $editable = false;
public $attachments = true;
public $alarms = false;
public $history = false;
public $subscriptions = true;
public $categories = array();
public $storage;
public $type = 'event';
protected $cal;
protected $events = array();
protected $search_fields = array('title', 'description', 'location', 'attendees');
/**
* Factory method to instantiate a kolab_calendar object
*
* @param string Calendar ID (encoded IMAP folder name)
* @param object calendar plugin object
* @return object kolab_calendar instance
*/
public static function factory($id, $calendar)
{
$imap = $calendar->rc->get_storage();
$imap_folder = kolab_storage::id_decode($id);
$info = $imap->folder_info($imap_folder, true);
if (empty($info) || $info['noselect'] || strpos(kolab_storage::folder_type($imap_folder), 'event') !== 0) {
return new kolab_user_calendar($imap_folder, $calendar);
}
else {
return new kolab_calendar($imap_folder, $calendar);
}
}
/**
* Default constructor
*/
public function __construct($imap_folder, $calendar)
{
$this->cal = $calendar;
$this->imap = $calendar->rc->get_storage();
$this->name = $imap_folder;
// ID is derrived from folder name
$this->id = kolab_storage::folder_id($this->name, true);
$old_id = kolab_storage::folder_id($this->name, false);
// fetch objects from the given IMAP folder
$this->storage = kolab_storage::get_folder($this->name);
$this->ready = $this->storage && $this->storage->valid;
// Set writeable and alarms flags according to folder permissions
if ($this->ready) {
if ($this->storage->get_namespace() == 'personal') {
$this->editable = true;
$this->rights = 'lrswikxteav';
$this->alarms = true;
}
else {
$rights = $this->storage->get_myrights();
if ($rights && !PEAR::isError($rights)) {
$this->rights = $rights;
if (strpos($rights, 't') !== false || strpos($rights, 'd') !== false)
$this->editable = strpos($rights, 'i');;
}
}
// user-specific alarms settings win
$prefs = $this->cal->rc->config->get('kolab_calendars', array());
if (isset($prefs[$this->id]['showalarms']))
$this->alarms = $prefs[$this->id]['showalarms'];
else if (isset($prefs[$old_id]['showalarms']))
$this->alarms = $prefs[$old_id]['showalarms'];
}
$this->default = $this->storage->default;
$this->subtype = $this->storage->subtype;
}
/**
* Getter for the IMAP folder name
*
* @return string Name of the IMAP folder
*/
public function get_realname()
{
return $this->name;
}
/**
*
*/
public function get_title()
{
return null;
}
/**
* Return color to display this calendar
*/
public function get_color($default = null)
{
// color is defined in folder METADATA
if ($color = $this->storage->get_color()) {
return $color;
}
// calendar color is stored in user prefs (temporary solution)
$prefs = $this->cal->rc->config->get('kolab_calendars', array());
if (!empty($prefs[$this->id]) && !empty($prefs[$this->id]['color']))
return $prefs[$this->id]['color'];
return $default ?: 'cc0000';
}
/**
* Compose an URL for CalDAV access to this calendar (if configured)
*/
public function get_caldav_url()
{
if ($template = $this->cal->rc->config->get('calendar_caldav_url', null)) {
return strtr($template, array(
'%h' => $_SERVER['HTTP_HOST'],
'%u' => urlencode($this->cal->rc->get_user_name()),
'%i' => urlencode($this->storage->get_uid()),
'%n' => urlencode($this->name),
));
}
return false;
}
/**
* Update properties of this calendar folder
*
* @see calendar_driver::edit_calendar()
*/
public function update(&$prop)
{
$prop['oldname'] = $this->get_realname();
$newfolder = kolab_storage::folder_update($prop);
if ($newfolder === false) {
$this->cal->last_error = $this->cal->gettext(kolab_storage::$last_error);
return false;
}
// create ID
return kolab_storage::folder_id($newfolder);
}
/**
* Getter for a single event object
*/
public function get_event($id)
{
// remove our occurrence identifier if it's there
$master_id = preg_replace('/-\d{8}(T\d{6})?$/', '', $id);
// directly access storage object
if (!$this->events[$id] && $master_id == $id && ($record = $this->storage->get_object($id))) {
$this->events[$id] = $this->_to_driver_event($record, true);
}
// maybe a recurring instance is requested
if (!$this->events[$id] && $master_id != $id) {
$instance_id = substr($id, strlen($master_id) + 1);
if ($record = $this->storage->get_object($master_id)) {
$master = $this->_to_driver_event($record);
}
if ($master) {
// check for match in top-level exceptions (aka loose single occurrences)
if ($master['_formatobj'] && ($instance = $master['_formatobj']->get_instance($instance_id))) {
$this->events[$id] = $this->_to_driver_event($instance, false, true, $master);
}
// check for match on the first instance already
else if ($master['_instance'] && $master['_instance'] == $instance_id) {
$this->events[$id] = $master;
}
else if (is_array($master['recurrence'])) {
// For performance reasons we'll get only the specific instance
if (($date = substr($id, strlen($master_id) + 1, 8)) && strlen($date) == 8 && is_numeric($date)) {
$start_date = new DateTime($date . 'T000000', $master['start']->getTimezone());
}
$this->get_recurring_events($record, $start_date ?: $master['start'], null, $id, 1);
}
}
}
return $this->events[$id];
}
/**
* Get attachment body
* @see calendar_driver::get_attachment_body()
*/
public function get_attachment_body($id, $event)
{
if (!$this->ready)
return false;
$data = $this->storage->get_attachment($event['id'], $id);
if ($data == null) {
// try again with master UID
$uid = preg_replace('/-\d+(T\d{6})?$/', '', $event['id']);
if ($uid != $event['id']) {
$data = $this->storage->get_attachment($uid, $id);
}
}
return $data;
}
/**
* @param integer Event's new start (unix timestamp)
* @param integer Event's new end (unix timestamp)
* @param string Search query (optional)
* @param boolean Include virtual events (optional)
* @param array Additional parameters to query storage
* @param array Additional query to filter events
* @return array A list of event records
*/
public function list_events($start, $end, $search = null, $virtual = 1, $query = array(), $filter_query = null)
{
// convert to DateTime for comparisons
// #5190: make the range a little bit wider
// to workaround possible timezone differences
try {
$start = new DateTime('@' . ($start - 12 * 3600));
}
catch (Exception $e) {
$start = new DateTime('@0');
}
try {
$end = new DateTime('@' . ($end + 12 * 3600));
}
catch (Exception $e) {
$end = new DateTime('today +10 years');
}
// get email addresses of the current user
$user_emails = $this->cal->get_user_emails();
// query Kolab storage
$query[] = array('dtstart', '<=', $end);
$query[] = array('dtend', '>=', $start);
if (is_array($filter_query)) {
$query = array_merge($query, $filter_query);
}
if (!empty($search)) {
$search = mb_strtolower($search);
$words = rcube_utils::tokenize_string($search, 1);
foreach (rcube_utils::normalize_string($search, true) as $word) {
$query[] = array('words', 'LIKE', $word);
}
}
else {
$words = array();
}
// set partstat filter to skip pending and declined invitations
if (empty($filter_query) && $this->cal->rc->config->get('kolab_invitation_calendars')
&& $this->get_namespace() != 'other'
) {
$partstat_exclude = array('NEEDS-ACTION','DECLINED');
}
else {
$partstat_exclude = array();
}
$events = array();
foreach ($this->storage->select($query) as $record) {
$event = $this->_to_driver_event($record, !$virtual, false);
// remember seen categories
if ($event['categories']) {
$cat = is_array($event['categories']) ? $event['categories'][0] : $event['categories'];
$this->categories[$cat]++;
}
// list events in requested time window
if ($event['start'] <= $end && $event['end'] >= $start) {
unset($event['_attendees']);
$add = true;
// skip the first instance of a recurring event if listed in exdate
if ($virtual && !empty($event['recurrence']['EXDATE'])) {
$event_date = $event['start']->format('Ymd');
- $exdates = (array)$event['recurrence']['EXDATE'];
+ $event_tz = $event['start']->getTimezone();
- foreach ($exdates as $exdate) {
- if ($exdate->format('Ymd') == $event_date) {
+ foreach ((array) $event['recurrence']['EXDATE'] as $exdate) {
+ $ex = clone $exdate;
+ $ex->setTimezone($event_tz);
+
+ if ($ex->format('Ymd') == $event_date) {
$add = false;
break;
}
}
}
// find and merge exception for the first instance
if ($virtual && !empty($event['recurrence']) && is_array($event['recurrence']['EXCEPTIONS'])) {
foreach ($event['recurrence']['EXCEPTIONS'] as $exception) {
if ($event['_instance'] == $exception['_instance']) {
// clone date objects from main event before adjusting them with exception data
if (is_object($event['start'])) $event['start'] = clone $record['start'];
if (is_object($event['end'])) $event['end'] = clone $record['end'];
kolab_driver::merge_exception_data($event, $exception);
}
}
}
if ($add)
$events[] = $event;
}
// resolve recurring events
if ($record['recurrence'] && $virtual == 1) {
$events = array_merge($events, $this->get_recurring_events($record, $start, $end));
}
// add top-level exceptions (aka loose single occurrences)
else if (is_array($record['exceptions'])) {
foreach ($record['exceptions'] as $ex) {
$component = $this->_to_driver_event($ex, false, false, $record);
if ($component['start'] <= $end && $component['end'] >= $start) {
$events[] = $component;
}
}
}
}
// post-filter all events by fulltext search and partstat values
$me = $this;
$events = array_filter($events, function($event) use ($words, $partstat_exclude, $user_emails, $me) {
// fulltext search
if (count($words)) {
$hits = 0;
foreach ($words as $word) {
$hits += $me->fulltext_match($event, $word, false);
}
if ($hits < count($words)) {
return false;
}
}
// partstat filter
if (count($partstat_exclude) && is_array($event['attendees'])) {
foreach ($event['attendees'] as $attendee) {
if (in_array($attendee['email'], $user_emails) && in_array($attendee['status'], $partstat_exclude)) {
return false;
}
}
}
return true;
});
// Apply event-to-mail relations
$config = kolab_storage_config::get_instance();
$config->apply_links($events);
// avoid session race conditions that will loose temporary subscriptions
$this->cal->rc->session->nowrite = true;
return $events;
}
/**
*
* @param integer Date range start (unix timestamp)
* @param integer Date range end (unix timestamp)
* @param array Additional query to filter events
* @return integer Count
*/
public function count_events($start, $end = null, $filter_query = null)
{
// convert to DateTime for comparisons
try {
$start = new DateTime('@'.$start);
}
catch (Exception $e) {
$start = new DateTime('@0');
}
if ($end) {
try {
$end = new DateTime('@'.$end);
}
catch (Exception $e) {
$end = null;
}
}
// query Kolab storage
$query[] = array('dtend', '>=', $start);
if ($end)
$query[] = array('dtstart', '<=', $end);
// add query to exclude pending/declined invitations
if (empty($filter_query)) {
foreach ($this->cal->get_user_emails() as $email) {
$query[] = array('tags', '!=', 'x-partstat:' . $email . ':needs-action');
$query[] = array('tags', '!=', 'x-partstat:' . $email . ':declined');
}
}
else if (is_array($filter_query)) {
$query = array_merge($query, $filter_query);
}
// we rely the Kolab storage query (no post-filtering)
return $this->storage->count($query);
}
/**
* Create a new event record
*
* @see calendar_driver::new_event()
*
* @return mixed The created record ID on success, False on error
*/
public function insert_event($event)
{
if (!is_array($event))
return false;
// email links are stored separately
$links = $event['links'];
unset($event['links']);
//generate new event from RC input
$object = $this->_from_driver_event($event);
$saved = $this->storage->save($object, 'event');
if (!$saved) {
rcube::raise_error(array(
'code' => 600, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => "Error saving event object to Kolab server"),
true, false);
$saved = false;
}
else {
// save links in configuration.relation object
if ($this->save_links($event['uid'], $links)) {
$object['links'] = $links;
}
$this->events = array($event['uid'] => $this->_to_driver_event($object, true));
}
return $saved;
}
/**
* Update a specific event record
*
* @see calendar_driver::new_event()
* @return boolean True on success, False on error
*/
public function update_event($event, $exception_id = null)
{
$updated = false;
$old = $this->storage->get_object($event['uid'] ?: $event['id']);
if (!$old || PEAR::isError($old))
return false;
// email links are stored separately
$links = $event['links'];
unset($event['links']);
$object = $this->_from_driver_event($event, $old);
$saved = $this->storage->save($object, 'event', $old['uid']);
if (!$saved) {
rcube::raise_error(array(
'code' => 600, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => "Error saving event object to Kolab server"),
true, false);
}
else {
// save links in configuration.relation object
if ($this->save_links($event['uid'], $links)) {
$object['links'] = $links;
}
$updated = true;
$this->events = array($event['uid'] => $this->_to_driver_event($object, true));
// refresh local cache with recurring instances
if ($exception_id) {
$this->get_recurring_events($object, $event['start'], $event['end'], $exception_id);
}
}
return $updated;
}
/**
* Delete an event record
*
* @see calendar_driver::remove_event()
* @return boolean True on success, False on error
*/
public function delete_event($event, $force = true)
{
$deleted = $this->storage->delete($event['uid'] ?: $event['id'], $force);
if (!$deleted) {
rcube::raise_error(array(
'code' => 600, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => sprintf("Error deleting event object '%s' from Kolab server", $event['id'])),
true, false);
}
return $deleted;
}
/**
* Restore deleted event record
*
* @see calendar_driver::undelete_event()
* @return boolean True on success, False on error
*/
public function restore_event($event)
{
if ($this->storage->undelete($event['id'])) {
return true;
}
else {
rcube::raise_error(array(
'code' => 600, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => "Error undeleting the event object $event[id] from the Kolab server"),
true, false);
}
return false;
}
/**
* Find messages linked with an event
*/
protected function get_links($uid)
{
$storage = kolab_storage_config::get_instance();
return $storage->get_object_links($uid);
}
/**
*
*/
protected function save_links($uid, $links)
{
$storage = kolab_storage_config::get_instance();
return $storage->save_object_links($uid, (array) $links);
}
/**
* Create instances of a recurring event
*
* @param array $event Hash array with event properties
* @param DateTime $start Start date of the recurrence window
* @param DateTime $end End date of the recurrence window
* @param string $event_id ID of a specific recurring event instance
* @param int $limit Max. number of instances to return
*
* @return array List of recurring event instances
*/
public function get_recurring_events($event, $start, $end = null, $event_id = null, $limit = null)
{
$object = $event['_formatobj'];
if (!$object) {
$rec = $this->storage->get_object($event['id']);
$object = $rec['_formatobj'];
}
if (!is_object($object))
return array();
// determine a reasonable end date if none given
if (!$end) {
$end = clone $event['start'];
$end->add(new DateInterval('P100Y'));
}
// copy the recurrence rule from the master event (to be used in the UI)
$recurrence_rule = $event['recurrence'];
unset($recurrence_rule['EXCEPTIONS'], $recurrence_rule['EXDATE']);
// read recurrence exceptions first
$events = array();
$exdata = array();
$futuredata = array();
$recurrence_id_format = libcalendaring::recurrence_id_format($event);
if (is_array($event['recurrence']['EXCEPTIONS'])) {
foreach ($event['recurrence']['EXCEPTIONS'] as $exception) {
if (!$exception['_instance'])
$exception['_instance'] = libcalendaring::recurrence_instance_identifier($exception, $event['allday']);
$rec_event = $this->_to_driver_event($exception, false, false, $event);
$rec_event['id'] = $event['uid'] . '-' . $exception['_instance'];
$rec_event['isexception'] = 1;
// found the specifically requested instance: register exception (single occurrence wins)
if ($rec_event['id'] == $event_id && (!$this->events[$event_id] || $this->events[$event_id]['thisandfuture'])) {
$rec_event['recurrence'] = $recurrence_rule;
$rec_event['recurrence_id'] = $event['uid'];
$this->events[$rec_event['id']] = $rec_event;
}
// remember this exception's date
$exdate = substr($exception['_instance'], 0, 8);
if (!$exdata[$exdate] || $exdata[$exdate]['thisandfuture']) {
$exdata[$exdate] = $rec_event;
}
if ($rec_event['thisandfuture']) {
$futuredata[$exdate] = $rec_event;
}
}
}
// found the specifically requested instance, exiting...
if ($event_id && !empty($this->events[$event_id])) {
return array($this->events[$event_id]);
}
// Check first occurrence, it might have been moved
if ($first = $exdata[$event['start']->format('Ymd')]) {
// return it only if not already in the result, but in the requested period
if (!($event['start'] <= $end && $event['end'] >= $start)
&& ($first['start'] <= $end && $first['end'] >= $start)
) {
$events[] = $first;
}
}
if ($limit && count($events) >= $limit) {
return $events;
}
// use libkolab to compute recurring events
$recurrence = new kolab_date_recurrence($object);
$i = 0;
while ($next_event = $recurrence->next_instance()) {
$datestr = $next_event['start']->format('Ymd');
$instance_id = $next_event['start']->format($recurrence_id_format);
// use this event data for future recurring instances
if ($futuredata[$datestr])
$overlay_data = $futuredata[$datestr];
$rec_id = $event['uid'] . '-' . $instance_id;
$exception = $exdata[$datestr] ?: $overlay_data;
$event_start = $next_event['start'];
$event_end = $next_event['end'];
// copy some event from exception to get proper start/end dates
if ($exception) {
$event_copy = $next_event;
kolab_driver::merge_exception_dates($event_copy, $exception);
$event_start = $event_copy['start'];
$event_end = $event_copy['end'];
}
// add to output if in range
if (($event_start <= $end && $event_end >= $start) || ($event_id && $rec_id == $event_id)) {
$rec_event = $this->_to_driver_event($next_event, false, false, $event);
$rec_event['_instance'] = $instance_id;
$rec_event['_count'] = $i + 1;
if ($exception) // copy data from exception
kolab_driver::merge_exception_data($rec_event, $exception);
$rec_event['id'] = $rec_id;
$rec_event['recurrence_id'] = $event['uid'];
$rec_event['recurrence'] = $recurrence_rule;
unset($rec_event['_attendees']);
$events[] = $rec_event;
if ($rec_id == $event_id) {
$this->events[$rec_id] = $rec_event;
break;
}
if ($limit && count($events) >= $limit) {
return $events;
}
}
else if ($next_event['start'] > $end) // stop loop if out of range
break;
// avoid endless recursion loops
if (++$i > 100000)
break;
}
return $events;
}
/**
* Convert from Kolab_Format to internal representation
*/
private function _to_driver_event($record, $noinst = false, $links = true, $master_event = null)
{
$record['calendar'] = $this->id;
if ($links && !array_key_exists('links', $record)) {
$record['links'] = $this->get_links($record['uid']);
}
$ns = $this->get_namespace();
if ($ns == 'other') {
$record['className'] = 'fc-event-ns-other';
}
if ($ns == 'other' || !$this->cal->rc->config->get('kolab_invitation_calendars')) {
$record = kolab_driver::add_partstat_class($record, array('NEEDS-ACTION', 'DECLINED'), $this->get_owner());
// Modify invitation status class name, when invitation calendars are disabled
// we'll use opacity only for declined/needs-action events
$record['className'] = str_replace('-invitation', '', $record['className']);
}
// add instance identifier to first occurrence (master event)
$recurrence_id_format = libcalendaring::recurrence_id_format($master_event ? $master_event : $record);
if (!$noinst && $record['recurrence'] && !$record['recurrence_id'] && !$record['_instance']) {
$record['_instance'] = $record['start']->format($recurrence_id_format);
}
else if (is_a($record['recurrence_date'], 'DateTime')) {
$record['_instance'] = $record['recurrence_date']->format($recurrence_id_format);
}
// clean up exception data
if ($record['recurrence'] && is_array($record['recurrence']['EXCEPTIONS'])) {
array_walk($record['recurrence']['EXCEPTIONS'], function(&$exception) {
unset($exception['_mailbox'], $exception['_msguid'], $exception['_formatobj'], $exception['_attachments']);
});
}
return $record;
}
/**
* Convert the given event record into a data structure that can be passed to Kolab_Storage backend for saving
* (opposite of self::_to_driver_event())
*/
private function _from_driver_event($event, $old = array())
{
// set current user as ORGANIZER
if ($identity = $this->cal->rc->user->list_emails(true)) {
$event['attendees'] = (array) $event['attendees'];
$found = false;
// there can be only resources on attendees list (T1484)
// let's check the existence of an organizer
foreach ($event['attendees'] as $attendee) {
if ($attendee['role'] == 'ORGANIZER') {
$found = true;
break;
}
}
if (!$found) {
$event['attendees'][] = array('role' => 'ORGANIZER', 'name' => $identity['name'], 'email' => $identity['email']);
}
$event['_owner'] = $identity['email'];
}
// remove EXDATE values if RDATE is given
if (!empty($event['recurrence']['RDATE'])) {
$event['recurrence']['EXDATE'] = array();
}
// remove recurrence information (e.g. EXDATES and EXCEPTIONS) entirely
if ($event['recurrence'] && empty($event['recurrence']['FREQ']) && empty($event['recurrence']['RDATE'])) {
$event['recurrence'] = array();
}
// keep 'comment' from initial itip invitation
if (!empty($old['comment'])) {
$event['comment'] = $old['comment'];
}
// clean up exception data
if (is_array($event['exceptions'])) {
array_walk($event['exceptions'], function(&$exception) {
unset($exception['_mailbox'], $exception['_msguid'], $exception['_formatobj'], $exception['_attachments'],
$event['attachments'], $event['deleted_attachments'], $event['recurrence_id']);
});
}
// remove some internal properties which should not be saved
unset($event['_savemode'], $event['_fromcalendar'], $event['_identity'], $event['_folder_id'],
$event['recurrence_id'], $event['attachments'], $event['deleted_attachments'], $event['className']);
// copy meta data (starting with _) from old object
foreach ((array)$old as $key => $val) {
if (!isset($event[$key]) && $key[0] == '_')
$event[$key] = $val;
}
return $event;
}
/**
* Match the given word in the event contents
*/
public function fulltext_match($event, $word, $recursive = true)
{
$hits = 0;
foreach ($this->search_fields as $col) {
$sval = is_array($event[$col]) ? self::_complex2string($event[$col]) : $event[$col];
if (empty($sval))
continue;
// do a simple substring matching (to be improved)
$val = mb_strtolower($sval);
if (strpos($val, $word) !== false) {
$hits++;
break;
}
}
return $hits;
}
/**
* Convert a complex event attribute to a string value
*/
private static function _complex2string($prop)
{
static $ignorekeys = array('role','status','rsvp');
$out = '';
if (is_array($prop)) {
foreach ($prop as $key => $val) {
if (is_numeric($key)) {
$out .= self::_complex2string($val);
}
else if (!in_array($key, $ignorekeys)) {
$out .= $val . ' ';
}
}
}
else if (is_string($prop) || is_numeric($prop)) {
$out .= $prop . ' ';
}
return rtrim($out);
}
}
diff --git a/plugins/libcalendaring/libvcalendar.php b/plugins/libcalendaring/libvcalendar.php
index 06e660b8..0a33798a 100644
--- a/plugins/libcalendaring/libvcalendar.php
+++ b/plugins/libcalendaring/libvcalendar.php
@@ -1,1439 +1,1438 @@
<?php
/**
* iCalendar functions for the libcalendaring plugin
*
* @author Thomas Bruederli <bruederli@kolabsys.com>
*
* Copyright (C) 2013-2015, Kolab Systems AG <contact@kolabsys.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use \Sabre\VObject;
use \Sabre\VObject\DateTimeParser;
/**
* Class to parse and build vCalendar (iCalendar) files
*
* Uses the Sabre VObject library, version 3.x.
*
*/
class libvcalendar implements Iterator
{
private $timezone;
private $attach_uri = null;
private $prodid = '-//Roundcube libcalendaring//Sabre//Sabre VObject//EN';
private $type_component_map = array('event' => 'VEVENT', 'task' => 'VTODO');
private $attendee_keymap = array(
'name' => 'CN',
'status' => 'PARTSTAT',
'role' => 'ROLE',
'cutype' => 'CUTYPE',
'rsvp' => 'RSVP',
'delegated-from' => 'DELEGATED-FROM',
'delegated-to' => 'DELEGATED-TO',
'schedule-status' => 'SCHEDULE-STATUS',
'schedule-agent' => 'SCHEDULE-AGENT',
'sent-by' => 'SENT-BY',
);
private $organizer_keymap = array(
'name' => 'CN',
'schedule-status' => 'SCHEDULE-STATUS',
'schedule-agent' => 'SCHEDULE-AGENT',
'sent-by' => 'SENT-BY',
);
private $iteratorkey = 0;
private $charset;
private $forward_exceptions;
private $vhead;
private $fp;
private $vtimezones = array();
public $method;
public $agent = '';
public $objects = array();
public $freebusy = array();
/**
* Default constructor
*/
function __construct($tz = null)
{
$this->timezone = $tz;
$this->prodid = '-//Roundcube libcalendaring ' . RCUBE_VERSION . '//Sabre//Sabre VObject ' . VObject\Version::VERSION . '//EN';
}
/**
* Setter for timezone information
*/
public function set_timezone($tz)
{
$this->timezone = $tz;
}
/**
* Setter for URI template for attachment links
*/
public function set_attach_uri($uri)
{
$this->attach_uri = $uri;
}
/**
* Setter for a custom PRODID attribute
*/
public function set_prodid($prodid)
{
$this->prodid = $prodid;
}
/**
* Setter for a user-agent string to tweak input/output accordingly
*/
public function set_agent($agent)
{
$this->agent = $agent;
}
/**
* Free resources by clearing member vars
*/
public function reset()
{
$this->vhead = '';
$this->method = '';
$this->objects = array();
$this->freebusy = array();
$this->vtimezones = array();
$this->iteratorkey = 0;
if ($this->fp) {
fclose($this->fp);
$this->fp = null;
}
}
/**
* Import events from iCalendar format
*
* @param string vCalendar input
* @param string Input charset (from envelope)
* @param boolean True if parsing exceptions should be forwarded to the caller
* @return array List of events extracted from the input
*/
public function import($vcal, $charset = 'UTF-8', $forward_exceptions = false, $memcheck = true)
{
// TODO: convert charset to UTF-8 if other
try {
// estimate the memory usage and try to avoid fatal errors when allowed memory gets exhausted
if ($memcheck) {
$count = substr_count($vcal, 'BEGIN:VEVENT') + substr_count($vcal, 'BEGIN:VTODO');
$expected_memory = $count * 70*1024; // assume ~ 70K per event (empirically determined)
if (!rcube_utils::mem_check($expected_memory)) {
throw new Exception("iCal file too big");
}
}
$vobject = VObject\Reader::read($vcal, VObject\Reader::OPTION_FORGIVING | VObject\Reader::OPTION_IGNORE_INVALID_LINES);
if ($vobject)
return $this->import_from_vobject($vobject);
}
catch (Exception $e) {
if ($forward_exceptions) {
throw $e;
}
else {
rcube::raise_error(array(
'code' => 600, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => "iCal data parse error: " . $e->getMessage()),
true, false);
}
}
return array();
}
/**
* Read iCalendar events from a file
*
* @param string File path to read from
* @param string Input charset (from envelope)
* @param boolean True if parsing exceptions should be forwarded to the caller
* @return array List of events extracted from the file
*/
public function import_from_file($filepath, $charset = 'UTF-8', $forward_exceptions = false)
{
if ($this->fopen($filepath, $charset, $forward_exceptions)) {
while ($this->_parse_next(false)) {
// nop
}
fclose($this->fp);
$this->fp = null;
}
return $this->objects;
}
/**
* Open a file to read iCalendar events sequentially
*
* @param string File path to read from
* @param string Input charset (from envelope)
* @param boolean True if parsing exceptions should be forwarded to the caller
* @return boolean True if file contents are considered valid
*/
public function fopen($filepath, $charset = 'UTF-8', $forward_exceptions = false)
{
$this->reset();
// just to be sure...
@ini_set('auto_detect_line_endings', true);
$this->charset = $charset;
$this->forward_exceptions = $forward_exceptions;
$this->fp = fopen($filepath, 'r');
// check file content first
$begin = fread($this->fp, 1024);
if (!preg_match('/BEGIN:VCALENDAR/i', $begin)) {
return false;
}
fseek($this->fp, 0);
return $this->_parse_next();
}
/**
* Parse the next event/todo/freebusy object from the input file
*/
private function _parse_next($reset = true)
{
if ($reset) {
$this->iteratorkey = 0;
$this->objects = array();
$this->freebusy = array();
}
$next = $this->_next_component();
$buffer = $next;
// load the next component(s) too, as they could contain recurrence exceptions
while (preg_match('/(RRULE|RECURRENCE-ID)[:;]/i', $next)) {
$next = $this->_next_component();
$buffer .= $next;
}
// parse the vevent block surrounded with the vcalendar heading
if (strlen($buffer) && preg_match('/BEGIN:(VEVENT|VTODO|VFREEBUSY)/i', $buffer)) {
try {
$this->import($this->vhead . $buffer . "END:VCALENDAR", $this->charset, true, false);
}
catch (Exception $e) {
if ($this->forward_exceptions) {
throw new VObject\ParseException($e->getMessage() . " in\n" . $buffer);
}
else {
// write the failing section to error log
rcube::raise_error(array(
'code' => 600, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => $e->getMessage() . " in\n" . $buffer),
true, false);
}
// advance to next
return $this->_parse_next($reset);
}
return count($this->objects) > 0;
}
return false;
}
/**
* Helper method to read the next calendar component from the file
*/
private function _next_component()
{
$buffer = '';
$vcalendar_head = false;
while (($line = fgets($this->fp, 1024)) !== false) {
// ignore END:VCALENDAR lines
if (preg_match('/END:VCALENDAR/i', $line)) {
continue;
}
// read vcalendar header (with timezone defintion)
if (preg_match('/BEGIN:VCALENDAR/i', $line)) {
$this->vhead = '';
$vcalendar_head = true;
}
// end of VCALENDAR header part
if ($vcalendar_head && preg_match('/BEGIN:(VEVENT|VTODO|VFREEBUSY)/i', $line)) {
$vcalendar_head = false;
}
if ($vcalendar_head) {
$this->vhead .= $line;
}
else {
$buffer .= $line;
if (preg_match('/END:(VEVENT|VTODO|VFREEBUSY)/i', $line)) {
break;
}
}
}
return $buffer;
}
/**
* Import objects from an already parsed Sabre\VObject\Component object
*
* @param object Sabre\VObject\Component to read from
* @return array List of events extracted from the file
*/
public function import_from_vobject($vobject)
{
$seen = array();
$exceptions = array();
if ($vobject->name == 'VCALENDAR') {
$this->method = strval($vobject->METHOD);
$this->agent = strval($vobject->PRODID);
foreach ($vobject->getComponents() as $ve) {
if ($ve->name == 'VEVENT' || $ve->name == 'VTODO') {
// convert to hash array representation
$object = $this->_to_array($ve);
// temporarily store this as exception
if ($object['recurrence_date']) {
$exceptions[] = $object;
}
else if (!$seen[$object['uid']]++) {
$this->objects[] = $object;
}
}
else if ($ve->name == 'VFREEBUSY') {
$this->objects[] = $this->_parse_freebusy($ve);
}
}
// add exceptions to the according master events
foreach ($exceptions as $exception) {
$uid = $exception['uid'];
// make this exception the master
if (!$seen[$uid]++) {
$this->objects[] = $exception;
}
else {
foreach ($this->objects as $i => $object) {
// add as exception to existing entry with a matching UID
if ($object['uid'] == $uid) {
$this->objects[$i]['exceptions'][] = $exception;
if (!empty($object['recurrence'])) {
$this->objects[$i]['recurrence']['EXCEPTIONS'] = &$this->objects[$i]['exceptions'];
}
break;
}
}
}
}
}
return $this->objects;
}
/**
* Getter for free-busy periods
*/
public function get_busy_periods()
{
$out = array();
foreach ((array)$this->freebusy['periods'] as $period) {
if ($period[2] != 'FREE') {
$out[] = $period;
}
}
return $out;
}
/**
* Helper method to determine whether the connected client is an Apple device
*/
private function is_apple()
{
return stripos($this->agent, 'Apple') !== false
|| stripos($this->agent, 'Mac OS X') !== false
|| stripos($this->agent, 'iOS/') !== false;
}
/**
* Convert the given VEvent object to a libkolab compatible array representation
*
* @param object Vevent object to convert
* @return array Hash array with object properties
*/
private function _to_array($ve)
{
$event = array(
'uid' => self::convert_string($ve->UID),
'title' => self::convert_string($ve->SUMMARY),
'_type' => $ve->name == 'VTODO' ? 'task' : 'event',
// set defaults
'priority' => 0,
'attendees' => array(),
'x-custom' => array(),
);
// Catch possible exceptions when date is invalid (Bug #2144)
// We can skip these fields, they aren't critical
foreach (array('CREATED' => 'created', 'LAST-MODIFIED' => 'changed', 'DTSTAMP' => 'changed') as $attr => $field) {
try {
if (!$event[$field] && $ve->{$attr}) {
$event[$field] = $ve->{$attr}->getDateTime();
}
} catch (Exception $e) {}
}
// map other attributes to internal fields
foreach ($ve->children as $prop) {
if (!($prop instanceof VObject\Property))
continue;
$value = strval($prop);
switch ($prop->name) {
case 'DTSTART':
case 'DTEND':
case 'DUE':
$propmap = array('DTSTART' => 'start', 'DTEND' => 'end', 'DUE' => 'due');
$event[$propmap[$prop->name]] = self::convert_datetime($prop);
break;
case 'TRANSP':
$event['free_busy'] = strval($prop) == 'TRANSPARENT' ? 'free' : 'busy';
break;
case 'STATUS':
if ($value == 'TENTATIVE')
$event['free_busy'] = 'tentative';
else if ($value == 'CANCELLED')
$event['cancelled'] = true;
else if ($value == 'COMPLETED')
$event['complete'] = 100;
$event['status'] = $value;
break;
case 'COMPLETED':
if (self::convert_datetime($prop)) {
$event['status'] = 'COMPLETED';
$event['complete'] = 100;
}
break;
case 'PRIORITY':
if (is_numeric($value))
$event['priority'] = $value;
break;
case 'RRULE':
$params = is_array($event['recurrence']) ? $event['recurrence'] : array();
// parse recurrence rule attributes
foreach ($prop->getParts() as $k => $v) {
$params[strtoupper($k)] = is_array($v) ? implode(',', $v) : $v;
}
if ($params['UNTIL'])
$params['UNTIL'] = date_create($params['UNTIL']);
if (!$params['INTERVAL'])
$params['INTERVAL'] = 1;
$event['recurrence'] = array_filter($params);
break;
case 'EXDATE':
if (!empty($value)) {
$exdates = array_map(function($_) { return is_array($_) ? $_[0] : $_; }, self::convert_datetime($prop, true));
$event['recurrence']['EXDATE'] = array_merge((array)$event['recurrence']['EXDATE'], $exdates);
}
break;
case 'RDATE':
if (!empty($value)) {
$rdates = array_map(function($_) { return is_array($_) ? $_[0] : $_; }, self::convert_datetime($prop, true));
$event['recurrence']['RDATE'] = array_merge((array)$event['recurrence']['RDATE'], $rdates);
}
break;
case 'RECURRENCE-ID':
$event['recurrence_date'] = self::convert_datetime($prop);
if ($prop->offsetGet('RANGE') == 'THISANDFUTURE' || $prop->offsetGet('THISANDFUTURE') !== null) {
$event['thisandfuture'] = true;
}
break;
case 'RELATED-TO':
$reltype = $prop->offsetGet('RELTYPE');
if ($reltype == 'PARENT' || $reltype === null) {
$event['parent_id'] = $value;
}
break;
case 'SEQUENCE':
$event['sequence'] = intval($value);
break;
case 'PERCENT-COMPLETE':
$event['complete'] = intval($value);
break;
case 'LOCATION':
case 'DESCRIPTION':
case 'URL':
case 'COMMENT':
$event[strtolower($prop->name)] = self::convert_string($prop);
break;
case 'CATEGORY':
case 'CATEGORIES':
$event['categories'] = array_merge((array)$event['categories'], $prop->getParts());
break;
case 'CLASS':
case 'X-CALENDARSERVER-ACCESS':
$event['sensitivity'] = strtolower($value);
break;
case 'X-MICROSOFT-CDO-BUSYSTATUS':
if ($value == 'OOF')
$event['free_busy'] = 'outofoffice';
else if (in_array($value, array('FREE', 'BUSY', 'TENTATIVE')))
$event['free_busy'] = strtolower($value);
break;
case 'ATTENDEE':
case 'ORGANIZER':
$params = array('RSVP' => false);
foreach ($prop->parameters() as $pname => $pvalue) {
switch ($pname) {
case 'RSVP': $params[$pname] = strtolower($pvalue) == 'true'; break;
case 'CN': $params[$pname] = self::unescape($pvalue); break;
default: $params[$pname] = strval($pvalue); break;
}
}
$attendee = self::map_keys($params, array_flip($this->attendee_keymap));
$attendee['email'] = preg_replace('!^mailto:!i', '', $value);
if ($prop->name == 'ORGANIZER') {
$attendee['role'] = 'ORGANIZER';
$attendee['status'] = 'ACCEPTED';
$event['organizer'] = $attendee;
if (array_key_exists('schedule-agent', $attendee)) {
$schedule_agent = $attendee['schedule-agent'];
}
}
else if ($attendee['email'] != $event['organizer']['email']) {
$event['attendees'][] = $attendee;
}
break;
case 'ATTACH':
$params = self::parameters_array($prop);
if (substr($value, 0, 4) == 'http' && !strpos($value, ':attachment:')) {
$event['links'][] = $value;
}
else if (strlen($value) && strtoupper($params['VALUE']) == 'BINARY') {
$attachment = self::map_keys($params, array('FMTTYPE' => 'mimetype', 'X-LABEL' => 'name', 'X-APPLE-FILENAME' => 'name'));
$attachment['data'] = $value;
$attachment['size'] = strlen($value);
$event['attachments'][] = $attachment;
}
break;
default:
if (substr($prop->name, 0, 2) == 'X-')
$event['x-custom'][] = array($prop->name, strval($value));
break;
}
}
// check DURATION property if no end date is set
if (empty($event['end']) && $ve->DURATION) {
try {
$duration = new DateInterval(strval($ve->DURATION));
$end = clone $event['start'];
$end->add($duration);
$event['end'] = $end;
}
catch (\Exception $e) {
trigger_error(strval($e), E_USER_WARNING);
}
}
// validate event dates
if ($event['_type'] == 'event') {
$event['allday'] = false;
// check for all-day dates
if ($event['start']->_dateonly) {
$event['allday'] = true;
}
// events may lack the DTEND property, set it to DTSTART (RFC5545 3.6.1)
if (empty($event['end'])) {
$event['end'] = clone $event['start'];
}
// shift end-date by one day (except Thunderbird)
else if ($event['allday'] && is_object($event['end'])) {
$event['end']->sub(new \DateInterval('PT23H'));
}
// sanity-check and fix end date
if (!empty($event['end']) && $event['end'] < $event['start']) {
$event['end'] = clone $event['start'];
}
}
// make organizer part of the attendees list for compatibility reasons
if (!empty($event['organizer']) && is_array($event['attendees']) && $event['_type'] == 'event') {
array_unshift($event['attendees'], $event['organizer']);
}
// find alarms
foreach ($ve->select('VALARM') as $valarm) {
$action = 'DISPLAY';
$trigger = null;
$alarm = array();
foreach ($valarm->children as $prop) {
$value = strval($prop);
switch ($prop->name) {
case 'TRIGGER':
foreach ($prop->parameters as $param) {
if ($param->name == 'VALUE' && $param->getValue() == 'DATE-TIME') {
$trigger = '@' . $prop->getDateTime()->format('U');
$alarm['trigger'] = $prop->getDateTime();
}
else if ($param->name == 'RELATED') {
$alarm['related'] = $param->getValue();
}
}
if (!$trigger && ($values = libcalendaring::parse_alarm_value($value))) {
$trigger = $values[2];
}
if (!$alarm['trigger']) {
$alarm['trigger'] = rtrim(preg_replace('/([A-Z])0[WDHMS]/', '\\1', $value), 'T');
// if all 0-values have been stripped, assume 'at time'
if ($alarm['trigger'] == 'P')
$alarm['trigger'] = 'PT0S';
}
break;
case 'ACTION':
$action = $alarm['action'] = strtoupper($value);
break;
case 'SUMMARY':
case 'DESCRIPTION':
case 'DURATION':
$alarm[strtolower($prop->name)] = self::convert_string($prop);
break;
case 'REPEAT':
$alarm['repeat'] = intval($value);
break;
case 'ATTENDEE':
$alarm['attendees'][] = preg_replace('!^mailto:!i', '', $value);
break;
case 'ATTACH':
$params = self::parameters_array($prop);
if (strlen($value) && (preg_match('/^[a-z]+:/', $value) || strtoupper($params['VALUE']) == 'URI')) {
// we only support URI-type of attachments here
$alarm['uri'] = $value;
}
break;
}
}
if ($action != 'NONE') {
if ($trigger && !$event['alarms']) // store first alarm in legacy property
$event['alarms'] = $trigger . ':' . $action;
if ($alarm['trigger'])
$event['valarms'][] = $alarm;
}
}
// assign current timezone to event start/end
if ($event['start'] instanceof DateTime) {
if ($this->timezone)
$event['start']->setTimezone($this->timezone);
}
else {
unset($event['start']);
}
if ($event['end'] instanceof DateTime) {
if ($this->timezone)
$event['end']->setTimezone($this->timezone);
}
else {
unset($event['end']);
}
// some iTip CANCEL messages only contain the start date
if (!$event['end'] && $event['start'] && $this->method == 'CANCEL') {
$event['end'] = clone $event['start'];
}
// T2531: Remember SCHEDULE-AGENT in custom property to properly
// support event updates via CalDAV when SCHEDULE-AGENT=CLIENT is used
if (isset($schedule_agent)) {
$event['x-custom'][] = array('SCHEDULE-AGENT', $schedule_agent);
}
// minimal validation
if (empty($event['uid']) || ($event['_type'] == 'event' && empty($event['start']) != empty($event['end']))) {
throw new VObject\ParseException('Object validation failed: missing mandatory object properties');
}
return $event;
}
/**
* Parse the given vfreebusy component into an array representation
*/
private function _parse_freebusy($ve)
{
$this->freebusy = array('_type' => 'freebusy', 'periods' => array());
$seen = array();
foreach ($ve->children as $prop) {
if (!($prop instanceof VObject\Property))
continue;
$value = strval($prop);
switch ($prop->name) {
case 'CREATED':
case 'LAST-MODIFIED':
case 'DTSTAMP':
case 'DTSTART':
case 'DTEND':
$propmap = array('DTSTART' => 'start', 'DTEND' => 'end', 'CREATED' => 'created', 'LAST-MODIFIED' => 'changed', 'DTSTAMP' => 'changed');
$this->freebusy[$propmap[$prop->name]] = self::convert_datetime($prop);
break;
case 'ORGANIZER':
$this->freebusy['organizer'] = preg_replace('!^mailto:!i', '', $value);
break;
case 'FREEBUSY':
// The freebusy component can hold more than 1 value, separated by commas.
$periods = explode(',', $value);
$fbtype = strval($prop['FBTYPE']) ?: 'BUSY';
// skip dupes
if ($seen[$value.':'.$fbtype]++)
continue;
foreach ($periods as $period) {
// Every period is formatted as [start]/[end]. The start is an
// absolute UTC time, the end may be an absolute UTC time, or
// duration (relative) value.
list($busyStart, $busyEnd) = explode('/', $period);
$busyStart = DateTimeParser::parse($busyStart);
$busyEnd = DateTimeParser::parse($busyEnd);
if ($busyEnd instanceof \DateInterval) {
$tmp = clone $busyStart;
$tmp->add($busyEnd);
$busyEnd = $tmp;
}
if ($busyEnd && $busyEnd > $busyStart)
$this->freebusy['periods'][] = array($busyStart, $busyEnd, $fbtype);
}
break;
case 'COMMENT':
$this->freebusy['comment'] = $value;
}
}
return $this->freebusy;
}
/**
*
*/
public static function convert_string($prop)
{
return strval($prop);
}
/**
*
*/
public static function unescape($prop)
{
return str_replace('\,', ',', strval($prop));
}
/**
* Helper method to correctly interpret an all-day date value
*/
public static function convert_datetime($prop, $as_array = false)
{
if (empty($prop)) {
return $as_array ? array() : null;
}
else if ($prop instanceof VObject\Property\iCalendar\DateTime) {
if (count($prop->getDateTimes()) > 1) {
$dt = array();
$dateonly = !$prop->hasTime();
foreach ($prop->getDateTimes() as $item) {
$item->_dateonly = $dateonly;
$dt[] = $item;
}
}
else {
$dt = $prop->getDateTime();
if (!$prop->hasTime()) {
$dt->_dateonly = true;
}
}
}
else if ($prop instanceof VObject\Property\iCalendar\Period) {
$dt = array();
foreach ($prop->getParts() as $val) {
try {
list($start, $end) = explode('/', $val);
$start = DateTimeParser::parseDateTime($start);
// This is a duration value.
if ($end[0] === 'P') {
$dur = DateTimeParser::parseDuration($end);
$end = clone $start;
$end->add($dur);
}
else {
$end = DateTimeParser::parseDateTime($end);
}
$dt[] = array($start, $end);
}
catch (Exception $e) {
// ignore single date parse errors
}
}
}
else if ($prop instanceof \DateTime) {
$dt = $prop;
}
// force return value to array if requested
if ($as_array && !is_array($dt)) {
$dt = empty($dt) ? array() : array($dt);
}
return $dt;
}
/**
* Create a Sabre\VObject\Property instance from a PHP DateTime object
*
* @param object VObject\Document parent node to create property for
* @param string Property name
* @param object DateTime
* @param boolean Set as UTC date
* @param boolean Set as VALUE=DATE property
*/
public function datetime_prop($cal, $name, $dt, $utc = false, $dateonly = null, $set_type = false)
{
if ($utc) {
$dt->setTimeZone(new \DateTimeZone('UTC'));
$is_utc = true;
}
else {
$is_utc = ($tz = $dt->getTimezone()) && in_array($tz->getName(), array('UTC','GMT','Z'));
}
$is_dateonly = $dateonly === null ? (bool)$dt->_dateonly : (bool)$dateonly;
$vdt = $cal->createProperty($name, $dt, null, $is_dateonly ? 'DATE' : 'DATE-TIME');
if ($is_dateonly) {
$vdt['VALUE'] = 'DATE';
}
else if ($set_type) {
$vdt['VALUE'] = 'DATE-TIME';
}
// register timezone for VTIMEZONE block
if (!$is_utc && !$dateonly && $tz && ($tzname = $tz->getName())) {
$ts = $dt->format('U');
if (is_array($this->vtimezones[$tzname])) {
$this->vtimezones[$tzname][0] = min($this->vtimezones[$tzname][0], $ts);
$this->vtimezones[$tzname][1] = max($this->vtimezones[$tzname][1], $ts);
}
else {
$this->vtimezones[$tzname] = array($ts, $ts);
}
}
return $vdt;
}
/**
* Copy values from one hash array to another using a key-map
*/
public static function map_keys($values, $map)
{
$out = array();
foreach ($map as $from => $to) {
if (isset($values[$from]))
$out[$to] = is_array($values[$from]) ? join(',', $values[$from]) : $values[$from];
}
return $out;
}
/**
*
*/
private static function parameters_array($prop)
{
$params = array();
foreach ($prop->parameters() as $name => $value) {
$params[strtoupper($name)] = strval($value);
}
return $params;
}
/**
* Export events to iCalendar format
*
* @param array Events as array
* @param string VCalendar method to advertise
* @param boolean Directly send data to stdout instead of returning
* @param callable Callback function to fetch attachment contents, false if no attachment export
* @param boolean Add VTIMEZONE block with timezone definitions for the included events
* @return string Events in iCalendar format (http://tools.ietf.org/html/rfc5545)
*/
public function export($objects, $method = null, $write = false, $get_attachment = false, $with_timezones = true)
{
$this->method = $method;
// encapsulate in VCALENDAR container
$vcal = new VObject\Component\VCalendar();
$vcal->VERSION = '2.0';
$vcal->PRODID = $this->prodid;
$vcal->CALSCALE = 'GREGORIAN';
if (!empty($method)) {
$vcal->METHOD = $method;
}
// write vcalendar header
if ($write) {
echo preg_replace('/END:VCALENDAR[\r\n]*$/m', '', $vcal->serialize());
}
foreach ($objects as $object) {
$this->_to_ical($object, !$write?$vcal:false, $get_attachment);
}
// include timezone information
if ($with_timezones || !empty($method)) {
foreach ($this->vtimezones as $tzid => $range) {
$vt = self::get_vtimezone($tzid, $range[0], $range[1], $vcal);
if (empty($vt)) {
continue; // no timezone information found
}
if ($write) {
echo $vt->serialize();
}
else {
$vcal->add($vt);
}
}
}
if ($write) {
echo "END:VCALENDAR\r\n";
return true;
}
else {
return $vcal->serialize();
}
}
/**
* Build a valid iCal format block from the given event
*
* @param array Hash array with event/task properties from libkolab
* @param object VCalendar object to append event to or false for directly sending data to stdout
* @param callable Callback function to fetch attachment contents, false if no attachment export
* @param object RECURRENCE-ID property when serializing a recurrence exception
*/
private function _to_ical($event, $vcal, $get_attachment, $recurrence_id = null)
{
$type = $event['_type'] ?: 'event';
$cal = $vcal ?: new VObject\Component\VCalendar();
$ve = $cal->create($this->type_component_map[$type]);
$ve->UID = $event['uid'];
// set DTSTAMP according to RFC 5545, 3.8.7.2.
$dtstamp = !empty($event['changed']) && empty($this->method) ? $event['changed'] : new DateTime('now', new \DateTimeZone('UTC'));
$ve->DTSTAMP = $this->datetime_prop($cal, 'DTSTAMP', $dtstamp, true);
// all-day events end the next day
if ($event['allday'] && !empty($event['end'])) {
$event['end'] = clone $event['end'];
$event['end']->add(new \DateInterval('P1D'));
$event['end']->_dateonly = true;
}
if (!empty($event['created']))
$ve->add($this->datetime_prop($cal, 'CREATED', $event['created'], true));
if (!empty($event['changed']))
$ve->add($this->datetime_prop($cal, 'LAST-MODIFIED', $event['changed'], true));
if (!empty($event['start']))
$ve->add($this->datetime_prop($cal, 'DTSTART', $event['start'], false, (bool)$event['allday']));
if (!empty($event['end']))
$ve->add($this->datetime_prop($cal, 'DTEND', $event['end'], false, (bool)$event['allday']));
if (!empty($event['due']))
$ve->add($this->datetime_prop($cal, 'DUE', $event['due'], false));
// we're exporting a recurrence instance only
if (!$recurrence_id && $event['recurrence_date'] && $event['recurrence_date'] instanceof DateTime) {
$recurrence_id = $this->datetime_prop($cal, 'RECURRENCE-ID', $event['recurrence_date'], false, (bool)$event['allday']);
if ($event['thisandfuture'])
$recurrence_id->add('RANGE', 'THISANDFUTURE');
}
if ($recurrence_id) {
$ve->add($recurrence_id);
}
$ve->add('SUMMARY', $event['title']);
if ($event['location'])
$ve->add($this->is_apple() ? new vobject_location_property($cal, 'LOCATION', $event['location']) : $cal->create('LOCATION', $event['location']));
if ($event['description'])
$ve->add('DESCRIPTION', strtr($event['description'], array("\r\n" => "\n", "\r" => "\n"))); // normalize line endings
if (isset($event['sequence']))
$ve->add('SEQUENCE', $event['sequence']);
if ($event['recurrence'] && !$recurrence_id) {
$exdates = $rdates = null;
if (isset($event['recurrence']['EXDATE'])) {
$exdates = $event['recurrence']['EXDATE'];
unset($event['recurrence']['EXDATE']); // don't serialize EXDATEs into RRULE value
}
if (isset($event['recurrence']['RDATE'])) {
$rdates = $event['recurrence']['RDATE'];
unset($event['recurrence']['RDATE']); // don't serialize RDATEs into RRULE value
}
if ($event['recurrence']['FREQ']) {
$ve->add('RRULE', libcalendaring::to_rrule($event['recurrence'], (bool)$event['allday']));
}
// add EXDATEs each one per line (for Thunderbird Lightning)
if (is_array($exdates)) {
- foreach ($exdates as $ex) {
- if ($ex instanceof \DateTime) {
- $exd = clone $event['start'];
- $exd->setDate($ex->format('Y'), $ex->format('n'), $ex->format('j'));
- $exd->setTimeZone(new \DateTimeZone('UTC'));
- $ve->add($this->datetime_prop($cal, 'EXDATE', $exd, true));
+ foreach ($exdates as $exdate) {
+ if ($exdate instanceof DateTime) {
+ $ve->add($this->datetime_prop($cal, 'EXDATE', $exdate));
}
}
}
// add RDATEs
- if (!empty($rdates)) {
- foreach ((array)$rdates as $rdate) {
- $ve->add($this->datetime_prop($cal, 'RDATE', $rdate));
+ if (is_array($rdates)) {
+ foreach ($rdates as $rdate) {
+ if ($ex instanceof DateTime) {
+ $ve->add($this->datetime_prop($cal, 'RDATE', $rdate));
+ }
}
}
}
if ($event['categories']) {
$cat = $cal->create('CATEGORIES');
$cat->setParts((array)$event['categories']);
$ve->add($cat);
}
if (!empty($event['free_busy'])) {
$ve->add('TRANSP', $event['free_busy'] == 'free' ? 'TRANSPARENT' : 'OPAQUE');
// for Outlook clients we provide the X-MICROSOFT-CDO-BUSYSTATUS property
if (stripos($this->agent, 'outlook') !== false) {
$ve->add('X-MICROSOFT-CDO-BUSYSTATUS', $event['free_busy'] == 'outofoffice' ? 'OOF' : strtoupper($event['free_busy']));
}
}
if ($event['priority'])
$ve->add('PRIORITY', $event['priority']);
if ($event['cancelled'])
$ve->add('STATUS', 'CANCELLED');
else if ($event['free_busy'] == 'tentative')
$ve->add('STATUS', 'TENTATIVE');
else if ($event['complete'] == 100)
$ve->add('STATUS', 'COMPLETED');
else if (!empty($event['status']))
$ve->add('STATUS', $event['status']);
if (!empty($event['sensitivity']))
$ve->add('CLASS', strtoupper($event['sensitivity']));
if (!empty($event['complete'])) {
$ve->add('PERCENT-COMPLETE', intval($event['complete']));
}
// Apple iCal and BusyCal required the COMPLETED date to be set in order to consider a task complete
if ($event['status'] == 'COMPLETED' || $event['complete'] == 100) {
$ve->add($this->datetime_prop($cal, 'COMPLETED', $event['changed'] ?: new DateTime('now - 1 hour'), true));
}
if ($event['valarms']) {
foreach ($event['valarms'] as $alarm) {
$va = $cal->createComponent('VALARM');
$va->action = $alarm['action'];
if ($alarm['trigger'] instanceof DateTime) {
$va->add($this->datetime_prop($cal, 'TRIGGER', $alarm['trigger'], true, null, true));
}
else {
$alarm_props = array();
if (strtoupper($alarm['related']) == 'END') {
$alarm_props['RELATED'] = 'END';
}
$va->add('TRIGGER', $alarm['trigger'], $alarm_props);
}
if ($alarm['action'] == 'EMAIL') {
foreach ((array)$alarm['attendees'] as $attendee) {
$va->add('ATTENDEE', 'mailto:' . $attendee);
}
}
if ($alarm['description']) {
$va->add('DESCRIPTION', $alarm['description'] ?: $event['title']);
}
if ($alarm['summary']) {
$va->add('SUMMARY', $alarm['summary']);
}
if ($alarm['duration']) {
$va->add('DURATION', $alarm['duration']);
$va->add('REPEAT', intval($alarm['repeat']));
}
if ($alarm['uri']) {
$va->add('ATTACH', $alarm['uri'], array('VALUE' => 'URI'));
}
$ve->add($va);
}
}
// legacy support
else if ($event['alarms']) {
$va = $cal->createComponent('VALARM');
list($trigger, $va->action) = explode(':', $event['alarms']);
$val = libcalendaring::parse_alarm_value($trigger);
if ($val[3])
$va->add('TRIGGER', $val[3]);
else if ($val[0] instanceof DateTime)
$va->add($this->datetime_prop($cal, 'TRIGGER', $val[0], true, null, true));
$ve->add($va);
}
// Find SCHEDULE-AGENT
foreach ((array)$event['x-custom'] as $prop) {
if ($prop[0] === 'SCHEDULE-AGENT') {
$schedule_agent = $prop[1];
}
}
foreach ((array)$event['attendees'] as $attendee) {
if ($attendee['role'] == 'ORGANIZER') {
if (empty($event['organizer']))
$event['organizer'] = $attendee;
}
else if (!empty($attendee['email'])) {
if (isset($attendee['rsvp']))
$attendee['rsvp'] = $attendee['rsvp'] ? 'TRUE' : null;
$mailto = $attendee['email'];
$attendee = array_filter(self::map_keys($attendee, $this->attendee_keymap));
if ($schedule_agent !== null && !isset($attendee['SCHEDULE-AGENT'])) {
$attendee['SCHEDULE-AGENT'] = $schedule_agent;
}
$ve->add('ATTENDEE', 'mailto:' . $mailto, $attendee);
}
}
if ($event['organizer']) {
$organizer = array_filter(self::map_keys($event['organizer'], $this->organizer_keymap));
if ($schedule_agent !== null && !isset($organizer['SCHEDULE-AGENT'])) {
$organizer['SCHEDULE-AGENT'] = $schedule_agent;
}
$ve->add('ORGANIZER', 'mailto:' . $event['organizer']['email'], $organizer);
}
foreach ((array)$event['url'] as $url) {
if (!empty($url)) {
$ve->add('URL', $url);
}
}
if (!empty($event['parent_id'])) {
$ve->add('RELATED-TO', $event['parent_id'], array('RELTYPE' => 'PARENT'));
}
if ($event['comment'])
$ve->add('COMMENT', $event['comment']);
$memory_limit = parse_bytes(ini_get('memory_limit'));
// export attachments
if (!empty($event['attachments'])) {
foreach ((array)$event['attachments'] as $attach) {
// check available memory and skip attachment export if we can't buffer it
// @todo: use rcube_utils::mem_check()
if (is_callable($get_attachment) && $memory_limit > 0 && ($memory_used = function_exists('memory_get_usage') ? memory_get_usage() : 16*1024*1024)
&& $attach['size'] && $memory_used + $attach['size'] * 3 > $memory_limit) {
continue;
}
// embed attachments using the given callback function
if (is_callable($get_attachment) && ($data = call_user_func($get_attachment, $attach['id'], $event))) {
// embed attachments for iCal
$ve->add('ATTACH',
$data,
array_filter(array('VALUE' => 'BINARY', 'ENCODING' => 'BASE64', 'FMTTYPE' => $attach['mimetype'], 'X-LABEL' => $attach['name'])));
unset($data); // attempt to free memory
}
// list attachments as absolute URIs
else if (!empty($this->attach_uri)) {
$ve->add('ATTACH',
strtr($this->attach_uri, array(
'{{id}}' => urlencode($attach['id']),
'{{name}}' => urlencode($attach['name']),
'{{mimetype}}' => urlencode($attach['mimetype']),
)),
array('FMTTYPE' => $attach['mimetype'], 'VALUE' => 'URI'));
}
}
}
foreach ((array)$event['links'] as $uri) {
$ve->add('ATTACH', $uri);
}
// add custom properties
foreach ((array)$event['x-custom'] as $prop) {
$ve->add($prop[0], $prop[1]);
}
// append to vcalendar container
if ($vcal) {
$vcal->add($ve);
}
else { // serialize and send to stdout
echo $ve->serialize();
}
// append recurrence exceptions
if (is_array($event['recurrence']) && $event['recurrence']['EXCEPTIONS']) {
foreach ($event['recurrence']['EXCEPTIONS'] as $ex) {
$exdate = $ex['recurrence_date'] ?: $ex['start'];
$recurrence_id = $this->datetime_prop($cal, 'RECURRENCE-ID', $exdate, false, (bool)$event['allday']);
if ($ex['thisandfuture'])
$recurrence_id->add('RANGE', 'THISANDFUTURE');
$this->_to_ical($ex, $vcal, $get_attachment, $recurrence_id);
}
}
}
/**
* Returns a VTIMEZONE component for a Olson timezone identifier
* with daylight transitions covering the given date range.
*
* @param string Timezone ID as used in PHP's Date functions
* @param integer Unix timestamp with first date/time in this timezone
* @param integer Unix timestap with last date/time in this timezone
*
* @return mixed A Sabre\VObject\Component object representing a VTIMEZONE definition
* or false if no timezone information is available
*/
public static function get_vtimezone($tzid, $from = 0, $to = 0, $cal = null)
{
if (!$from) $from = time();
if (!$to) $to = $from;
if (!$cal) $cal = new VObject\Component\VCalendar();
if (is_string($tzid)) {
try {
$tz = new \DateTimeZone($tzid);
}
catch (\Exception $e) {
return false;
}
}
else if (is_a($tzid, '\\DateTimeZone')) {
$tz = $tzid;
}
if (!is_a($tz, '\\DateTimeZone')) {
return false;
}
$year = 86400 * 360;
$transitions = $tz->getTransitions($from - $year, $to + $year);
$vt = $cal->createComponent('VTIMEZONE');
$vt->TZID = $tz->getName();
$std = null; $dst = null;
foreach ($transitions as $i => $trans) {
$cmp = null;
if ($i == 0) {
$tzfrom = $trans['offset'] / 3600;
continue;
}
if ($trans['isdst']) {
$t_dst = $trans['ts'];
$dst = $cal->createComponent('DAYLIGHT');
$cmp = $dst;
}
else {
$t_std = $trans['ts'];
$std = $cal->createComponent('STANDARD');
$cmp = $std;
}
if ($cmp) {
$dt = new DateTime($trans['time']);
$offset = $trans['offset'] / 3600;
$cmp->DTSTART = $dt->format('Ymd\THis');
$cmp->TZOFFSETFROM = sprintf('%+03d%02d', floor($tzfrom), ($tzfrom - floor($tzfrom)) * 60);
$cmp->TZOFFSETTO = sprintf('%+03d%02d', floor($offset), ($offset - floor($offset)) * 60);
if (!empty($trans['abbr'])) {
$cmp->TZNAME = $trans['abbr'];
}
$tzfrom = $offset;
$vt->add($cmp);
}
// we covered the entire date range
if ($std && $dst && min($t_std, $t_dst) < $from && max($t_std, $t_dst) > $to) {
break;
}
}
// add X-MICROSOFT-CDO-TZID if available
$microsoftExchangeMap = array_flip(VObject\TimeZoneUtil::$microsoftExchangeMap);
if (array_key_exists($tz->getName(), $microsoftExchangeMap)) {
$vt->add('X-MICROSOFT-CDO-TZID', $microsoftExchangeMap[$tz->getName()]);
}
return $vt;
}
/*** Implement PHP 5 Iterator interface to make foreach work ***/
function current()
{
return $this->objects[$this->iteratorkey];
}
function key()
{
return $this->iteratorkey;
}
function next()
{
$this->iteratorkey++;
// read next chunk if we're reading from a file
if (!$this->objects[$this->iteratorkey] && $this->fp) {
$this->_parse_next(true);
}
return $this->valid();
}
function rewind()
{
$this->iteratorkey = 0;
}
function valid()
{
return !empty($this->objects[$this->iteratorkey]);
}
}
/**
* Override Sabre\VObject\Property\Text that quotes commas in the location property
* because Apple clients treat that property as list.
*/
class vobject_location_property extends VObject\Property\Text
{
/**
* List of properties that are considered 'structured'.
*
* @var array
*/
protected $structuredValues = array(
// vCard
'N',
'ADR',
'ORG',
'GENDER',
'LOCATION',
// iCalendar
'REQUEST-STATUS',
);
}
diff --git a/plugins/libkolab/lib/kolab_format.php b/plugins/libkolab/lib/kolab_format.php
index 4f55a502..cde67fad 100644
--- a/plugins/libkolab/lib/kolab_format.php
+++ b/plugins/libkolab/lib/kolab_format.php
@@ -1,775 +1,793 @@
<?php
/**
* Kolab format model class wrapping libkolabxml bindings
*
* Abstract base class for different Kolab groupware objects read from/written
* to the new Kolab 3 format using the PHP bindings of libkolabxml.
*
* @version @package_version@
* @author Thomas Bruederli <bruederli@kolabsys.com>
*
* Copyright (C) 2012, Kolab Systems AG <contact@kolabsys.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
abstract class kolab_format
{
public static $timezone;
public /*abstract*/ $CTYPE;
public /*abstract*/ $CTYPEv2;
protected /*abstract*/ $objclass;
protected /*abstract*/ $read_func;
protected /*abstract*/ $write_func;
protected $obj;
protected $data;
protected $xmldata;
protected $xmlobject;
protected $formaterror;
protected $loaded = false;
protected $version = '3.0';
const KTYPE_PREFIX = 'application/x-vnd.kolab.';
const PRODUCT_ID = 'Roundcube-libkolab-1.1';
// mapping table for valid PHP timezones not supported by libkolabxml
// basically the entire list of ftp://ftp.iana.org/tz/data/backward
protected static $timezone_map = array(
'Africa/Asmera' => 'Africa/Asmara',
'Africa/Timbuktu' => 'Africa/Abidjan',
'America/Argentina/ComodRivadavia' => 'America/Argentina/Catamarca',
'America/Atka' => 'America/Adak',
'America/Buenos_Aires' => 'America/Argentina/Buenos_Aires',
'America/Catamarca' => 'America/Argentina/Catamarca',
'America/Coral_Harbour' => 'America/Atikokan',
'America/Cordoba' => 'America/Argentina/Cordoba',
'America/Ensenada' => 'America/Tijuana',
'America/Fort_Wayne' => 'America/Indiana/Indianapolis',
'America/Indianapolis' => 'America/Indiana/Indianapolis',
'America/Jujuy' => 'America/Argentina/Jujuy',
'America/Knox_IN' => 'America/Indiana/Knox',
'America/Louisville' => 'America/Kentucky/Louisville',
'America/Mendoza' => 'America/Argentina/Mendoza',
'America/Porto_Acre' => 'America/Rio_Branco',
'America/Rosario' => 'America/Argentina/Cordoba',
'America/Virgin' => 'America/Port_of_Spain',
'Asia/Ashkhabad' => 'Asia/Ashgabat',
'Asia/Calcutta' => 'Asia/Kolkata',
'Asia/Chungking' => 'Asia/Shanghai',
'Asia/Dacca' => 'Asia/Dhaka',
'Asia/Katmandu' => 'Asia/Kathmandu',
'Asia/Macao' => 'Asia/Macau',
'Asia/Saigon' => 'Asia/Ho_Chi_Minh',
'Asia/Tel_Aviv' => 'Asia/Jerusalem',
'Asia/Thimbu' => 'Asia/Thimphu',
'Asia/Ujung_Pandang' => 'Asia/Makassar',
'Asia/Ulan_Bator' => 'Asia/Ulaanbaatar',
'Atlantic/Faeroe' => 'Atlantic/Faroe',
'Atlantic/Jan_Mayen' => 'Europe/Oslo',
'Australia/ACT' => 'Australia/Sydney',
'Australia/Canberra' => 'Australia/Sydney',
'Australia/LHI' => 'Australia/Lord_Howe',
'Australia/NSW' => 'Australia/Sydney',
'Australia/North' => 'Australia/Darwin',
'Australia/Queensland' => 'Australia/Brisbane',
'Australia/South' => 'Australia/Adelaide',
'Australia/Tasmania' => 'Australia/Hobart',
'Australia/Victoria' => 'Australia/Melbourne',
'Australia/West' => 'Australia/Perth',
'Australia/Yancowinna' => 'Australia/Broken_Hill',
'Brazil/Acre' => 'America/Rio_Branco',
'Brazil/DeNoronha' => 'America/Noronha',
'Brazil/East' => 'America/Sao_Paulo',
'Brazil/West' => 'America/Manaus',
'Canada/Atlantic' => 'America/Halifax',
'Canada/Central' => 'America/Winnipeg',
'Canada/East-Saskatchewan' => 'America/Regina',
'Canada/Eastern' => 'America/Toronto',
'Canada/Mountain' => 'America/Edmonton',
'Canada/Newfoundland' => 'America/St_Johns',
'Canada/Pacific' => 'America/Vancouver',
'Canada/Saskatchewan' => 'America/Regina',
'Canada/Yukon' => 'America/Whitehorse',
'Chile/Continental' => 'America/Santiago',
'Chile/EasterIsland' => 'Pacific/Easter',
'Cuba' => 'America/Havana',
'Egypt' => 'Africa/Cairo',
'Eire' => 'Europe/Dublin',
'Europe/Belfast' => 'Europe/London',
'Europe/Tiraspol' => 'Europe/Chisinau',
'GB' => 'Europe/London',
'GB-Eire' => 'Europe/London',
'Greenwich' => 'Etc/GMT',
'Hongkong' => 'Asia/Hong_Kong',
'Iceland' => 'Atlantic/Reykjavik',
'Iran' => 'Asia/Tehran',
'Israel' => 'Asia/Jerusalem',
'Jamaica' => 'America/Jamaica',
'Japan' => 'Asia/Tokyo',
'Kwajalein' => 'Pacific/Kwajalein',
'Libya' => 'Africa/Tripoli',
'Mexico/BajaNorte' => 'America/Tijuana',
'Mexico/BajaSur' => 'America/Mazatlan',
'Mexico/General' => 'America/Mexico_City',
'NZ' => 'Pacific/Auckland',
'NZ-CHAT' => 'Pacific/Chatham',
'Navajo' => 'America/Denver',
'PRC' => 'Asia/Shanghai',
'Pacific/Ponape' => 'Pacific/Pohnpei',
'Pacific/Samoa' => 'Pacific/Pago_Pago',
'Pacific/Truk' => 'Pacific/Chuuk',
'Pacific/Yap' => 'Pacific/Chuuk',
'Poland' => 'Europe/Warsaw',
'Portugal' => 'Europe/Lisbon',
'ROC' => 'Asia/Taipei',
'ROK' => 'Asia/Seoul',
'Singapore' => 'Asia/Singapore',
'Turkey' => 'Europe/Istanbul',
'UCT' => 'Etc/UCT',
'US/Alaska' => 'America/Anchorage',
'US/Aleutian' => 'America/Adak',
'US/Arizona' => 'America/Phoenix',
'US/Central' => 'America/Chicago',
'US/East-Indiana' => 'America/Indiana/Indianapolis',
'US/Eastern' => 'America/New_York',
'US/Hawaii' => 'Pacific/Honolulu',
'US/Indiana-Starke' => 'America/Indiana/Knox',
'US/Michigan' => 'America/Detroit',
'US/Mountain' => 'America/Denver',
'US/Pacific' => 'America/Los_Angeles',
'US/Samoa' => 'Pacific/Pago_Pago',
'Universal' => 'Etc/UTC',
'W-SU' => 'Europe/Moscow',
'Zulu' => 'Etc/UTC',
);
/**
* Factory method to instantiate a kolab_format object of the given type and version
*
* @param string Object type to instantiate
* @param float Format version
* @param string Cached xml data to initialize with
* @return object kolab_format
*/
public static function factory($type, $version = '3.0', $xmldata = null)
{
if (!isset(self::$timezone))
self::$timezone = new DateTimeZone('UTC');
if (!self::supports($version))
return PEAR::raiseError("No support for Kolab format version " . $version);
$type = preg_replace('/configuration\.[a-z._]+$/', 'configuration', $type);
$suffix = preg_replace('/[^a-z]+/', '', $type);
$classname = 'kolab_format_' . $suffix;
if (class_exists($classname))
return new $classname($xmldata, $version);
return PEAR::raiseError("Failed to load Kolab Format wrapper for type " . $type);
}
/**
* Determine support for the given format version
*
* @param float Format version to check
* @return boolean True if supported, False otherwise
*/
public static function supports($version)
{
if ($version == '2.0')
return class_exists('kolabobject');
// default is version 3
return class_exists('kolabformat');
}
/**
* Convert the given date/time value into a cDateTime object
*
* @param mixed Date/Time value either as unix timestamp, date string or PHP DateTime object
* @param DateTimeZone The timezone the date/time is in. Use global default if Null, local time if False
* @param boolean True of the given date has no time component
- * @return object The libkolabxml date/time object
+ * @param DateTimeZone The timezone to convert the date to before converting to cDateTime
+ *
+ * @return cDateTime The libkolabxml date/time object
*/
- public static function get_datetime($datetime, $tz = null, $dateonly = false)
+ public static function get_datetime($datetime, $tz = null, $dateonly = false, $dest_tz = null)
{
- // use timezone information from datetime of global setting
+ // use timezone information from datetime or global setting
if (!$tz && $tz !== false) {
if ($datetime instanceof DateTime)
$tz = $datetime->getTimezone();
if (!$tz)
$tz = self::$timezone;
}
+
$result = new cDateTime();
try {
// got a unix timestamp (in UTC)
if (is_numeric($datetime)) {
$datetime = new DateTime('@'.$datetime, new DateTimeZone('UTC'));
if ($tz) $datetime->setTimezone($tz);
}
else if (is_string($datetime) && strlen($datetime)) {
$datetime = $tz ? new DateTime($datetime, $tz) : new DateTime($datetime);
}
+ else if ($datetime instanceof DateTime) {
+ $datetime = clone $datetime;
+ }
}
catch (Exception $e) {}
if ($datetime instanceof DateTime) {
+ if ($dest_tz instanceof DateTimeZone && $dest_tz !== $datetime->getTimezone()) {
+ $datetime->setTimezone($dest_tz);
+ $tz = $dest_tz;
+ }
+
$result->setDate($datetime->format('Y'), $datetime->format('n'), $datetime->format('j'));
- if (!$dateonly)
- $result->setTime($datetime->format('G'), $datetime->format('i'), $datetime->format('s'));
+ if ($dateonly) {
+ // Dates should be always in local time only
+ return $result;
+ }
+
+ $result->setTime($datetime->format('G'), $datetime->format('i'), $datetime->format('s'));
// libkolabxml throws errors on some deprecated timezone names
$utc_aliases = array('UTC', 'GMT', '+00:00', 'Z', 'Etc/GMT', 'Etc/UTC');
if ($tz && in_array($tz->getName(), $utc_aliases)) {
$result->setUTC(true);
}
else if ($tz !== false) {
$tzid = $tz->getName();
if (array_key_exists($tzid, self::$timezone_map))
$tzid = self::$timezone_map[$tzid];
$result->setTimezone($tzid);
}
}
return $result;
}
/**
* Convert the given cDateTime into a PHP DateTime object
*
- * @param object cDateTime The libkolabxml datetime object
- * @return object DateTime PHP datetime instance
+ * @param cDateTime The libkolabxml datetime object
+ * @param DateTimeZone The timezone to convert the date to
+ *
+ * @return DateTime PHP datetime instance
*/
- public static function php_datetime($cdt)
+ public static function php_datetime($cdt, $dest_tz = null)
{
- if (!is_object($cdt) || !$cdt->isValid())
+ if (!is_object($cdt) || !$cdt->isValid()) {
return null;
+ }
$d = new DateTime;
- $d->setTimezone(self::$timezone);
+ $d->setTimezone($dest_tz ?: self::$timezone);
try {
if ($tzs = $cdt->timezone()) {
$tz = new DateTimeZone($tzs);
$d->setTimezone($tz);
}
else if ($cdt->isUTC()) {
$d->setTimezone(new DateTimeZone('UTC'));
}
}
catch (Exception $e) { }
$d->setDate($cdt->year(), $cdt->month(), $cdt->day());
if ($cdt->isDateOnly()) {
$d->_dateonly = true;
$d->setTime(12, 0, 0); // set time to noon to avoid timezone troubles
}
else {
$d->setTime($cdt->hour(), $cdt->minute(), $cdt->second());
}
return $d;
}
/**
* Convert a libkolabxml vector to a PHP array
*
* @param object vector Object
* @return array Indexed array containing vector elements
*/
public static function vector2array($vec, $max = PHP_INT_MAX)
{
$arr = array();
for ($i=0; $i < $vec->size() && $i < $max; $i++)
$arr[] = $vec->get($i);
return $arr;
}
/**
* Build a libkolabxml vector (string) from a PHP array
*
* @param array Array with vector elements
* @return object vectors
*/
public static function array2vector($arr)
{
$vec = new vectors;
foreach ((array)$arr as $val) {
if (strlen($val))
$vec->push($val);
}
return $vec;
}
/**
* Parse the X-Kolab-Type header from MIME messages and return the object type in short form
*
* @param string X-Kolab-Type header value
* @return string Kolab object type (contact,event,task,note,etc.)
*/
public static function mime2object_type($x_kolab_type)
{
return preg_replace(
array('/dictionary.[a-z.]+$/', '/contact.distlist$/'),
array( 'dictionary', 'distribution-list'),
substr($x_kolab_type, strlen(self::KTYPE_PREFIX))
);
}
/**
* Default constructor of all kolab_format_* objects
*/
public function __construct($xmldata = null, $version = null)
{
$this->obj = new $this->objclass;
$this->xmldata = $xmldata;
if ($version)
$this->version = $version;
// use libkolab module if available
if (class_exists('kolabobject'))
$this->xmlobject = new XMLObject();
}
/**
* Check for format errors after calling kolabformat::write*()
*
* @return boolean True if there were errors, False if OK
*/
protected function format_errors()
{
$ret = $log = false;
switch (kolabformat::error()) {
case kolabformat::NoError:
$ret = false;
break;
case kolabformat::Warning:
$ret = false;
$uid = is_object($this->obj) ? $this->obj->uid() : $this->data['uid'];
$log = "Warning @ $uid";
break;
default:
$ret = true;
$log = "Error";
}
if ($log && !isset($this->formaterror)) {
rcube::raise_error(array(
'code' => 660,
'type' => 'php',
'file' => __FILE__,
'line' => __LINE__,
'message' => "kolabformat $log: " . kolabformat::errorMessage(),
), true);
$this->formaterror = $ret;
}
return $ret;
}
/**
* Save the last generated UID to the object properties.
* Should be called after kolabformat::writeXXXX();
*/
protected function update_uid()
{
// get generated UID
if (!$this->data['uid']) {
if ($this->xmlobject) {
$this->data['uid'] = $this->xmlobject->getSerializedUID();
}
if (empty($this->data['uid'])) {
$this->data['uid'] = kolabformat::getSerializedUID();
}
$this->obj->setUid($this->data['uid']);
}
}
/**
* Initialize libkolabxml object with cached xml data
*/
protected function init()
{
if (!$this->loaded) {
if ($this->xmldata) {
$this->load($this->xmldata);
$this->xmldata = null;
}
$this->loaded = true;
}
}
/**
* Get constant value for libkolab's version parameter
*
* @param float Version value to convert
* @return int Constant value of either kolabobject::KolabV2 or kolabobject::KolabV3 or false if kolabobject module isn't available
*/
protected function libversion($v = null)
{
if (class_exists('kolabobject')) {
$version = $v ?: $this->version;
if ($version <= '2.0')
return kolabobject::KolabV2;
else
return kolabobject::KolabV3;
}
return false;
}
/**
* Determine the correct libkolab(xml) wrapper function for the given call
* depending on the available PHP modules
*/
protected function libfunc($func)
{
if (is_array($func) || strpos($func, '::'))
return $func;
else if (class_exists('kolabobject'))
return array($this->xmlobject, $func);
else
return 'kolabformat::' . $func;
}
/**
* Direct getter for object properties
*/
public function __get($var)
{
return $this->data[$var];
}
/**
* Load Kolab object data from the given XML block
*
* @param string XML data
* @return boolean True on success, False on failure
*/
public function load($xml)
{
$this->formaterror = null;
$read_func = $this->libfunc($this->read_func);
if (is_array($read_func))
$r = call_user_func($read_func, $xml, $this->libversion());
else
$r = call_user_func($read_func, $xml, false);
if (is_resource($r))
$this->obj = new $this->objclass($r);
else if (is_a($r, $this->objclass))
$this->obj = $r;
$this->loaded = !$this->format_errors();
}
/**
* Write object data to XML format
*
* @param float Format version to write
* @return string XML data
*/
public function write($version = null)
{
$this->formaterror = null;
$this->init();
$write_func = $this->libfunc($this->write_func);
if (is_array($write_func))
$this->xmldata = call_user_func($write_func, $this->obj, $this->libversion($version), self::PRODUCT_ID);
else
$this->xmldata = call_user_func($write_func, $this->obj, self::PRODUCT_ID);
if (!$this->format_errors())
$this->update_uid();
else
$this->xmldata = null;
return $this->xmldata;
}
/**
* Set properties to the kolabformat object
*
* @param array Object data as hash array
*/
public function set(&$object)
{
$this->init();
if (!empty($object['uid']))
$this->obj->setUid($object['uid']);
// set some automatic values if missing
if (method_exists($this->obj, 'setCreated')) {
// Always set created date to workaround libkolabxml (>1.1.4) bug
$created = $object['created'] ?: new DateTime('now');
$created->setTimezone(new DateTimeZone('UTC')); // must be UTC
$this->obj->setCreated(self::get_datetime($created));
$object['created'] = $created;
}
$object['changed'] = new DateTime('now', new DateTimeZone('UTC'));
$this->obj->setLastModified(self::get_datetime($object['changed']));
// Save custom properties of the given object
if (isset($object['x-custom']) && method_exists($this->obj, 'setCustomProperties')) {
$vcustom = new vectorcs;
foreach ((array)$object['x-custom'] as $cp) {
if (is_array($cp))
$vcustom->push(new CustomProperty($cp[0], $cp[1]));
}
$this->obj->setCustomProperties($vcustom);
}
// load custom properties from XML for caching (#2238) if method exists (#3125)
else if (method_exists($this->obj, 'customProperties')) {
$object['x-custom'] = array();
$vcustom = $this->obj->customProperties();
for ($i=0; $i < $vcustom->size(); $i++) {
$cp = $vcustom->get($i);
$object['x-custom'][] = array($cp->identifier, $cp->value);
}
}
}
/**
* Convert the Kolab object into a hash array data structure
*
* @param array Additional data for merge
*
* @return array Kolab object data as hash array
*/
public function to_array($data = array())
{
$this->init();
// read object properties into local data object
$object = array(
'uid' => $this->obj->uid(),
'changed' => self::php_datetime($this->obj->lastModified()),
);
// not all container support the created property
if (method_exists($this->obj, 'created')) {
$object['created'] = self::php_datetime($this->obj->created());
}
// read custom properties
if (method_exists($this->obj, 'customProperties')) {
$vcustom = $this->obj->customProperties();
for ($i=0; $i < $vcustom->size(); $i++) {
$cp = $vcustom->get($i);
$object['x-custom'][] = array($cp->identifier, $cp->value);
}
}
// merge with additional data, e.g. attachments from the message
if ($data) {
foreach ($data as $idx => $value) {
if (is_array($value)) {
$object[$idx] = array_merge((array)$object[$idx], $value);
}
else {
$object[$idx] = $value;
}
}
}
return $object;
}
/**
* Object validation method to be implemented by derived classes
*/
abstract public function is_valid();
/**
* Callback for kolab_storage_cache to get object specific tags to cache
*
* @return array List of tags to save in cache
*/
public function get_tags()
{
return array();
}
/**
* Callback for kolab_storage_cache to get words to index for fulltext search
*
* @return array List of words to save in cache
*/
public function get_words()
{
return array();
}
/**
* Utility function to extract object attachment data
*
* @param array Hash array reference to append attachment data into
*/
public function get_attachments(&$object, $all = false)
{
$this->init();
// handle attachments
$vattach = $this->obj->attachments();
for ($i=0; $i < $vattach->size(); $i++) {
$attach = $vattach->get($i);
// skip cid: attachments which are mime message parts handled by kolab_storage_folder
if (substr($attach->uri(), 0, 4) != 'cid:' && $attach->label()) {
$name = $attach->label();
$key = $name . (isset($object['_attachments'][$name]) ? '.'.$i : '');
$content = $attach->data();
$object['_attachments'][$key] = array(
'id' => 'i:'.$i,
'name' => $name,
'mimetype' => $attach->mimetype(),
'size' => strlen($content),
'content' => $content,
);
}
else if ($all && substr($attach->uri(), 0, 4) == 'cid:') {
$key = $attach->uri();
$object['_attachments'][$key] = array(
'id' => $key,
'name' => $attach->label(),
'mimetype' => $attach->mimetype(),
);
}
else if (in_array(substr($attach->uri(), 0, 4), array('http','imap'))) {
$object['links'][] = $attach->uri();
}
}
}
/**
* Utility function to set attachment properties to the kolabformat object
*
* @param array Object data as hash array
* @param boolean True to always overwrite attachment information
*/
protected function set_attachments($object, $write = true)
{
// save attachments
$vattach = new vectorattachment;
foreach ((array) $object['_attachments'] as $cid => $attr) {
if (empty($attr))
continue;
$attach = new Attachment;
$attach->setLabel((string)$attr['name']);
$attach->setUri('cid:' . $cid, $attr['mimetype'] ?: 'application/octet-stream');
if ($attach->isValid()) {
$vattach->push($attach);
$write = true;
}
else {
rcube::raise_error(array(
'code' => 660,
'type' => 'php',
'file' => __FILE__,
'line' => __LINE__,
'message' => "Invalid attributes for attachment $cid: " . var_export($attr, true),
), true);
}
}
foreach ((array) $object['links'] as $link) {
$attach = new Attachment;
$attach->setUri($link, 'unknown');
$vattach->push($attach);
$write = true;
}
if ($write) {
$this->obj->setAttachments($vattach);
}
}
/**
* Unified way of updating/deleting attachments of edited object
*
* @param array $object Kolab object data
* @param array $old Old version of Kolab object
*/
public static function merge_attachments(&$object, $old)
{
$object['_attachments'] = (array) $old['_attachments'];
// delete existing attachment(s)
if (!empty($object['deleted_attachments'])) {
foreach ($object['_attachments'] as $idx => $att) {
if ($object['deleted_attachments'] === true || in_array($att['id'], $object['deleted_attachments'])) {
$object['_attachments'][$idx] = false;
}
}
}
// in kolab_storage attachments are indexed by content-id
foreach ((array) $object['attachments'] as $attachment) {
$key = null;
// Roundcube ID has nothing to do with the storage ID, remove it
// for uploaded/new attachments
// FIXME: Roundcube uses 'data', kolab_format uses 'content'
if ($attachment['content'] || $attachment['path'] || $attachment['data']) {
unset($attachment['id']);
}
if ($attachment['id']) {
foreach ((array) $object['_attachments'] as $cid => $att) {
if ($att && $attachment['id'] == $att['id']) {
$key = $cid;
}
}
}
else {
// find attachment by name, so we can update it if exists
// and make sure there are no duplicates
foreach ((array) $object['_attachments'] as $cid => $att) {
if ($att && $attachment['name'] == $att['name']) {
$key = $cid;
}
}
}
if ($key && $attachment['_deleted']) {
$object['_attachments'][$key] = false;
}
// replace existing entry
else if ($key) {
$object['_attachments'][$key] = $attachment;
}
// append as new attachment
else {
$object['_attachments'][] = $attachment;
}
}
unset($object['attachments']);
unset($object['deleted_attachments']);
}
}
diff --git a/plugins/libkolab/lib/kolab_format_xcal.php b/plugins/libkolab/lib/kolab_format_xcal.php
index d6d34422..a08d0aa0 100644
--- a/plugins/libkolab/lib/kolab_format_xcal.php
+++ b/plugins/libkolab/lib/kolab_format_xcal.php
@@ -1,769 +1,779 @@
<?php
/**
* Xcal based Kolab format class wrapping libkolabxml bindings
*
* Base class for xcal-based Kolab groupware objects such as event, todo, journal
*
* @version @package_version@
* @author Thomas Bruederli <bruederli@kolabsys.com>
*
* Copyright (C) 2012, Kolab Systems AG <contact@kolabsys.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
abstract class kolab_format_xcal extends kolab_format
{
public $CTYPE = 'application/calendar+xml';
public static $fulltext_cols = array('title', 'description', 'location', 'attendees:name', 'attendees:email', 'categories');
public static $scheduling_properties = array('start', 'end', 'location');
protected $_scheduling_properties = null;
protected $sensitivity_map = array(
'public' => kolabformat::ClassPublic,
'private' => kolabformat::ClassPrivate,
'confidential' => kolabformat::ClassConfidential,
);
protected $role_map = array(
'REQ-PARTICIPANT' => kolabformat::Required,
'OPT-PARTICIPANT' => kolabformat::Optional,
'NON-PARTICIPANT' => kolabformat::NonParticipant,
'CHAIR' => kolabformat::Chair,
);
protected $cutype_map = array(
'INDIVIDUAL' => kolabformat::CutypeIndividual,
'GROUP' => kolabformat::CutypeGroup,
'ROOM' => kolabformat::CutypeRoom,
'RESOURCE' => kolabformat::CutypeResource,
'UNKNOWN' => kolabformat::CutypeUnknown,
);
protected $rrule_type_map = array(
'MINUTELY' => RecurrenceRule::Minutely,
'HOURLY' => RecurrenceRule::Hourly,
'DAILY' => RecurrenceRule::Daily,
'WEEKLY' => RecurrenceRule::Weekly,
'MONTHLY' => RecurrenceRule::Monthly,
'YEARLY' => RecurrenceRule::Yearly,
);
protected $weekday_map = array(
'MO' => kolabformat::Monday,
'TU' => kolabformat::Tuesday,
'WE' => kolabformat::Wednesday,
'TH' => kolabformat::Thursday,
'FR' => kolabformat::Friday,
'SA' => kolabformat::Saturday,
'SU' => kolabformat::Sunday,
);
protected $alarm_type_map = array(
'DISPLAY' => Alarm::DisplayAlarm,
'EMAIL' => Alarm::EMailAlarm,
'AUDIO' => Alarm::AudioAlarm,
);
protected $status_map = array(
'NEEDS-ACTION' => kolabformat::StatusNeedsAction,
'IN-PROCESS' => kolabformat::StatusInProcess,
'COMPLETED' => kolabformat::StatusCompleted,
'CANCELLED' => kolabformat::StatusCancelled,
'TENTATIVE' => kolabformat::StatusTentative,
'CONFIRMED' => kolabformat::StatusConfirmed,
'DRAFT' => kolabformat::StatusDraft,
'FINAL' => kolabformat::StatusFinal,
);
protected $part_status_map = array(
'UNKNOWN' => kolabformat::PartNeedsAction,
'NEEDS-ACTION' => kolabformat::PartNeedsAction,
'TENTATIVE' => kolabformat::PartTentative,
'ACCEPTED' => kolabformat::PartAccepted,
'DECLINED' => kolabformat::PartDeclined,
'DELEGATED' => kolabformat::PartDelegated,
'IN-PROCESS' => kolabformat::PartInProcess,
'COMPLETED' => kolabformat::PartCompleted,
);
/**
* Convert common xcard properties into a hash array data structure
*
* @param array Additional data for merge
*
* @return array Object data as hash array
*/
public function to_array($data = array())
{
// read common object props
$object = parent::to_array($data);
$status_map = array_flip($this->status_map);
$sensitivity_map = array_flip($this->sensitivity_map);
$object += array(
'sequence' => intval($this->obj->sequence()),
'title' => $this->obj->summary(),
'location' => $this->obj->location(),
'description' => $this->obj->description(),
'url' => $this->obj->url(),
'status' => $status_map[$this->obj->status()],
'sensitivity' => $sensitivity_map[$this->obj->classification()],
'priority' => $this->obj->priority(),
'categories' => self::vector2array($this->obj->categories()),
'start' => self::php_datetime($this->obj->start()),
);
if (method_exists($this->obj, 'comment')) {
$object['comment'] = $this->obj->comment();
}
// read organizer and attendees
if (($organizer = $this->obj->organizer()) && ($organizer->email() || $organizer->name())) {
$object['organizer'] = array(
'email' => $organizer->email(),
'name' => $organizer->name(),
);
}
$role_map = array_flip($this->role_map);
$cutype_map = array_flip($this->cutype_map);
$part_status_map = array_flip($this->part_status_map);
$attvec = $this->obj->attendees();
for ($i=0; $i < $attvec->size(); $i++) {
$attendee = $attvec->get($i);
$cr = $attendee->contact();
if ($cr->email() != $object['organizer']['email']) {
$delegators = $delegatees = array();
$vdelegators = $attendee->delegatedFrom();
for ($j=0; $j < $vdelegators->size(); $j++) {
$delegators[] = $vdelegators->get($j)->email();
}
$vdelegatees = $attendee->delegatedTo();
for ($j=0; $j < $vdelegatees->size(); $j++) {
$delegatees[] = $vdelegatees->get($j)->email();
}
$object['attendees'][] = array(
'role' => $role_map[$attendee->role()],
'cutype' => $cutype_map[$attendee->cutype()],
'status' => $part_status_map[$attendee->partStat()],
'rsvp' => $attendee->rsvp(),
'email' => $cr->email(),
'name' => $cr->name(),
'delegated-from' => $delegators,
'delegated-to' => $delegatees,
);
}
}
+ if ($object['start'] instanceof DateTime) {
+ $start_tz = $object['start']->getTimezone();
+ }
+
// read recurrence rule
if (($rr = $this->obj->recurrenceRule()) && $rr->isValid()) {
$rrule_type_map = array_flip($this->rrule_type_map);
$object['recurrence'] = array('FREQ' => $rrule_type_map[$rr->frequency()]);
if ($intvl = $rr->interval())
$object['recurrence']['INTERVAL'] = $intvl;
if (($count = $rr->count()) && $count > 0) {
$object['recurrence']['COUNT'] = $count;
}
- else if ($until = self::php_datetime($rr->end())) {
+ else if ($until = self::php_datetime($rr->end(), $start_tz)) {
$refdate = $this->get_reference_date();
if ($refdate && $refdate instanceof DateTime && !$refdate->_dateonly) {
$until->setTime($refdate->format('G'), $refdate->format('i'), 0);
}
$object['recurrence']['UNTIL'] = $until;
}
if (($byday = $rr->byday()) && $byday->size()) {
$weekday_map = array_flip($this->weekday_map);
$weekdays = array();
for ($i=0; $i < $byday->size(); $i++) {
$daypos = $byday->get($i);
$prefix = $daypos->occurence();
$weekdays[] = ($prefix ? $prefix : '') . $weekday_map[$daypos->weekday()];
}
$object['recurrence']['BYDAY'] = join(',', $weekdays);
}
if (($bymday = $rr->bymonthday()) && $bymday->size()) {
$object['recurrence']['BYMONTHDAY'] = join(',', self::vector2array($bymday));
}
if (($bymonth = $rr->bymonth()) && $bymonth->size()) {
$object['recurrence']['BYMONTH'] = join(',', self::vector2array($bymonth));
}
if ($exdates = $this->obj->exceptionDates()) {
for ($i=0; $i < $exdates->size(); $i++) {
- if ($exdate = self::php_datetime($exdates->get($i)))
+ if ($exdate = self::php_datetime($exdates->get($i), $start_tz)) {
$object['recurrence']['EXDATE'][] = $exdate;
+ }
}
}
}
if ($rdates = $this->obj->recurrenceDates()) {
for ($i=0; $i < $rdates->size(); $i++) {
- if ($rdate = self::php_datetime($rdates->get($i)))
+ if ($rdate = self::php_datetime($rdates->get($i), $start_tz)) {
$object['recurrence']['RDATE'][] = $rdate;
+ }
}
}
// read alarm
$valarms = $this->obj->alarms();
$alarm_types = array_flip($this->alarm_type_map);
$object['valarms'] = array();
for ($i=0; $i < $valarms->size(); $i++) {
$alarm = $valarms->get($i);
$type = $alarm_types[$alarm->type()];
if ($type == 'DISPLAY' || $type == 'EMAIL' || $type == 'AUDIO') { // only some alarms are supported
$valarm = array(
'action' => $type,
'summary' => $alarm->summary(),
'description' => $alarm->description(),
);
if ($type == 'EMAIL') {
$valarm['attendees'] = array();
$attvec = $alarm->attendees();
for ($j=0; $j < $attvec->size(); $j++) {
$cr = $attvec->get($j);
$valarm['attendees'][] = $cr->email();
}
}
else if ($type == 'AUDIO') {
$attach = $alarm->audioFile();
$valarm['uri'] = $attach->uri();
}
if ($start = self::php_datetime($alarm->start())) {
$object['alarms'] = '@' . $start->format('U');
$valarm['trigger'] = $start;
}
else if ($offset = $alarm->relativeStart()) {
$prefix = $offset->isNegative() ? '-' : '+';
$value = '';
$time = '';
if ($w = $offset->weeks()) $value .= $w . 'W';
else if ($d = $offset->days()) $value .= $d . 'D';
else if ($h = $offset->hours()) $time .= $h . 'H';
else if ($m = $offset->minutes()) $time .= $m . 'M';
else if ($s = $offset->seconds()) $time .= $s . 'S';
// assume 'at event time'
if (empty($value) && empty($time)) {
$prefix = '';
$time = '0S';
}
$object['alarms'] = $prefix . $value . $time;
$valarm['trigger'] = $prefix . 'P' . $value . ($time ? 'T' . $time : '');
if ($alarm->relativeTo() == kolabformat::End) {
$valarm['related'] == 'END';
}
}
// read alarm duration and repeat properties
if (($duration = $alarm->duration()) && $duration->isValid()) {
$value = $time = '';
if ($w = $duration->weeks()) $value .= $w . 'W';
else if ($d = $duration->days()) $value .= $d . 'D';
else if ($h = $duration->hours()) $time .= $h . 'H';
else if ($m = $duration->minutes()) $time .= $m . 'M';
else if ($s = $duration->seconds()) $time .= $s . 'S';
$valarm['duration'] = 'P' . $value . ($time ? 'T' . $time : '');
$valarm['repeat'] = $alarm->numrepeat();
}
$object['alarms'] .= ':' . $type; // legacy property
$object['valarms'][] = array_filter($valarm);
}
}
$this->get_attachments($object);
return $object;
}
/**
* Set common xcal properties to the kolabformat object
*
* @param array Event data as hash array
*/
public function set(&$object)
{
$this->init();
$is_new = !$this->obj->uid();
$old_sequence = $this->obj->sequence();
$reschedule = $is_new;
// set common object properties
parent::set($object);
// set sequence value
if (!isset($object['sequence'])) {
if ($is_new) {
$object['sequence'] = 0;
}
else {
$object['sequence'] = $old_sequence;
// increment sequence when updating properties relevant for scheduling.
// RFC 5545: "It is incremented [...] each time the Organizer makes a significant revision to the calendar component."
if ($this->check_rescheduling($object)) {
$object['sequence']++;
}
}
}
$this->obj->setSequence(intval($object['sequence']));
if ($object['sequence'] > $old_sequence) {
$reschedule = true;
}
$this->obj->setSummary($object['title']);
$this->obj->setLocation($object['location']);
$this->obj->setDescription($object['description']);
$this->obj->setPriority($object['priority']);
$this->obj->setClassification($this->sensitivity_map[$object['sensitivity']]);
$this->obj->setCategories(self::array2vector($object['categories']));
$this->obj->setUrl(strval($object['url']));
if (method_exists($this->obj, 'setComment')) {
$this->obj->setComment($object['comment']);
}
// process event attendees
$attendees = new vectorattendee;
foreach ((array)$object['attendees'] as $i => $attendee) {
if ($attendee['role'] == 'ORGANIZER') {
$object['organizer'] = $attendee;
}
else if ($attendee['email'] != $object['organizer']['email']) {
$cr = new ContactReference(ContactReference::EmailReference, $attendee['email']);
$cr->setName($attendee['name']);
// set attendee RSVP if missing
if (!isset($attendee['rsvp'])) {
$object['attendees'][$i]['rsvp'] = $attendee['rsvp'] = $reschedule;
}
$att = new Attendee;
$att->setContact($cr);
$att->setPartStat($this->part_status_map[$attendee['status']]);
$att->setRole($this->role_map[$attendee['role']] ? $this->role_map[$attendee['role']] : kolabformat::Required);
$att->setCutype($this->cutype_map[$attendee['cutype']] ? $this->cutype_map[$attendee['cutype']] : kolabformat::CutypeIndividual);
$att->setRSVP((bool)$attendee['rsvp']);
if (!empty($attendee['delegated-from'])) {
$vdelegators = new vectorcontactref;
foreach ((array)$attendee['delegated-from'] as $delegator) {
$vdelegators->push(new ContactReference(ContactReference::EmailReference, $delegator));
}
$att->setDelegatedFrom($vdelegators);
}
if (!empty($attendee['delegated-to'])) {
$vdelegatees = new vectorcontactref;
foreach ((array)$attendee['delegated-to'] as $delegatee) {
$vdelegatees->push(new ContactReference(ContactReference::EmailReference, $delegatee));
}
$att->setDelegatedTo($vdelegatees);
}
if ($att->isValid()) {
$attendees->push($att);
}
else {
rcube::raise_error(array(
'code' => 600, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => "Invalid event attendee: " . json_encode($attendee),
), true);
}
}
}
$this->obj->setAttendees($attendees);
if ($object['organizer']) {
$organizer = new ContactReference(ContactReference::EmailReference, $object['organizer']['email']);
$organizer->setName($object['organizer']['name']);
$this->obj->setOrganizer($organizer);
}
+ if ($object['start'] instanceof DateTime) {
+ $start_tz = $object['start']->getTimezone();
+ }
+
// save recurrence rule
$rr = new RecurrenceRule;
$rr->setFrequency(RecurrenceRule::FreqNone);
if ($object['recurrence'] && !empty($object['recurrence']['FREQ'])) {
$freq = $object['recurrence']['FREQ'];
$bysetpos = explode(',', $object['recurrence']['BYSETPOS']);
$rr->setFrequency($this->rrule_type_map[$freq]);
if ($object['recurrence']['INTERVAL'])
$rr->setInterval(intval($object['recurrence']['INTERVAL']));
if ($object['recurrence']['BYDAY']) {
$byday = new vectordaypos;
foreach (explode(',', $object['recurrence']['BYDAY']) as $day) {
$occurrence = 0;
if (preg_match('/^([\d-]+)([A-Z]+)$/', $day, $m)) {
$occurrence = intval($m[1]);
$day = $m[2];
}
if (isset($this->weekday_map[$day])) {
// @TODO: libkolabxml does not support BYSETPOS, neither we.
// However, we can convert most common cases to BYDAY
if (!$occurrence && $freq == 'MONTHLY' && !empty($bysetpos)) {
foreach ($bysetpos as $pos) {
$byday->push(new DayPos(intval($pos), $this->weekday_map[$day]));
}
}
else {
$byday->push(new DayPos($occurrence, $this->weekday_map[$day]));
}
}
}
$rr->setByday($byday);
}
if ($object['recurrence']['BYMONTHDAY']) {
$bymday = new vectori;
foreach (explode(',', $object['recurrence']['BYMONTHDAY']) as $day)
$bymday->push(intval($day));
$rr->setBymonthday($bymday);
}
if ($object['recurrence']['BYMONTH']) {
$bymonth = new vectori;
foreach (explode(',', $object['recurrence']['BYMONTH']) as $month)
$bymonth->push(intval($month));
$rr->setBymonth($bymonth);
}
if ($object['recurrence']['COUNT'])
$rr->setCount(intval($object['recurrence']['COUNT']));
else if ($object['recurrence']['UNTIL'])
- $rr->setEnd(self::get_datetime($object['recurrence']['UNTIL'], null, true));
+ $rr->setEnd(self::get_datetime($object['recurrence']['UNTIL'], null, true, $start_tz));
if ($rr->isValid()) {
// add exception dates (only if recurrence rule is valid)
$exdates = new vectordatetime;
foreach ((array)$object['recurrence']['EXDATE'] as $exdate)
- $exdates->push(self::get_datetime($exdate, null, true));
+ $exdates->push(self::get_datetime($exdate, null, true, $start_tz));
$this->obj->setExceptionDates($exdates);
}
else {
rcube::raise_error(array(
'code' => 600, 'type' => 'php',
'file' => __FILE__, 'line' => __LINE__,
'message' => "Invalid event recurrence rule: " . json_encode($object['recurrence']),
), true);
}
}
$this->obj->setRecurrenceRule($rr);
// save recurrence dates (aka RDATE)
if (!empty($object['recurrence']['RDATE'])) {
$rdates = new vectordatetime;
foreach ((array)$object['recurrence']['RDATE'] as $rdate)
- $rdates->push(self::get_datetime($rdate, null, true));
+ $rdates->push(self::get_datetime($rdate, null, true, $start_tz));
$this->obj->setRecurrenceDates($rdates);
}
// save alarm(s)
$valarms = new vectoralarm;
$valarm_hashes = array();
if ($object['valarms']) {
foreach ($object['valarms'] as $valarm) {
if (!array_key_exists($valarm['action'], $this->alarm_type_map)) {
continue; // skip unknown alarm types
}
// Get rid of duplicates, some CalDAV clients can set them
$hash = serialize($valarm);
if (in_array($hash, $valarm_hashes)) {
continue;
}
$valarm_hashes[] = $hash;
if ($valarm['action'] == 'EMAIL') {
$recipients = new vectorcontactref;
foreach (($valarm['attendees'] ?: array($object['_owner'])) as $email) {
$recipients->push(new ContactReference(ContactReference::EmailReference, $email));
}
$alarm = new Alarm(
strval($valarm['summary'] ?: $object['title']),
strval($valarm['description'] ?: $object['description']),
$recipients
);
}
else if ($valarm['action'] == 'AUDIO') {
$attach = new Attachment;
$attach->setUri($valarm['uri'] ?: 'null', 'unknown');
$alarm = new Alarm($attach);
}
else {
// action == DISPLAY
$alarm = new Alarm(strval($valarm['summary'] ?: $object['title']));
}
if (is_object($valarm['trigger']) && $valarm['trigger'] instanceof DateTime) {
$alarm->setStart(self::get_datetime($valarm['trigger'], new DateTimeZone('UTC')));
}
else if (preg_match('/^@([0-9]+)$/', $valarm['trigger'], $m)) {
$alarm->setStart(self::get_datetime($m[1], new DateTimeZone('UTC')));
}
else {
// Support also interval in format without PT, e.g. -10M
if (preg_match('/^([-+]*)([0-9]+[DHMS])$/', strtoupper($valarm['trigger']), $m)) {
$valarm['trigger'] = $m[1] . ($m[2][strlen($m[2])-1] == 'D' ? 'P' : 'PT') . $m[2];
}
try {
$period = new DateInterval(preg_replace('/[^0-9PTWDHMS]/', '', $valarm['trigger']));
$duration = new Duration($period->d, $period->h, $period->i, $period->s, $valarm['trigger'][0] == '-');
}
catch (Exception $e) {
// skip alarm with invalid trigger values
rcube::raise_error($e, true);
continue;
}
$related = strtoupper($valarm['related']) == 'END' ? kolabformat::End : kolabformat::Start;
$alarm->setRelativeStart($duration, $related);
}
if ($valarm['duration']) {
try {
$d = new DateInterval($valarm['duration']);
$duration = new Duration($d->d, $d->h, $d->i, $d->s);
$alarm->setDuration($duration, intval($valarm['repeat']));
}
catch (Exception $e) {
// ignore
}
}
$valarms->push($alarm);
}
}
// legacy support
else if ($object['alarms']) {
list($offset, $type) = explode(":", $object['alarms']);
if ($type == 'EMAIL' && !empty($object['_owner'])) { // email alarms implicitly go to event owner
$recipients = new vectorcontactref;
$recipients->push(new ContactReference(ContactReference::EmailReference, $object['_owner']));
$alarm = new Alarm($object['title'], strval($object['description']), $recipients);
}
else { // default: display alarm
$alarm = new Alarm($object['title']);
}
if (preg_match('/^@(\d+)/', $offset, $d)) {
$alarm->setStart(self::get_datetime($d[1], new DateTimeZone('UTC')));
}
else if (preg_match('/^([-+]?)P?T?(\d+)([SMHDW])/', $offset, $d)) {
$days = $hours = $minutes = $seconds = 0;
switch ($d[3]) {
case 'W': $days = 7*intval($d[2]); break;
case 'D': $days = intval($d[2]); break;
case 'H': $hours = intval($d[2]); break;
case 'M': $minutes = intval($d[2]); break;
case 'S': $seconds = intval($d[2]); break;
}
$alarm->setRelativeStart(new Duration($days, $hours, $minutes, $seconds, $d[1] == '-'), $d[1] == '-' ? kolabformat::Start : kolabformat::End);
}
$valarms->push($alarm);
}
$this->obj->setAlarms($valarms);
$this->set_attachments($object);
}
/**
* Return the reference date for recurrence and alarms
*
* @return mixed DateTime instance of null if no refdate is available
*/
public function get_reference_date()
{
if ($this->data['start'] && $this->data['start'] instanceof DateTime) {
return $this->data['start'];
}
return self::php_datetime($this->obj->start());
}
/**
* Callback for kolab_storage_cache to get words to index for fulltext search
*
* @return array List of words to save in cache
*/
public function get_words($obj = null)
{
$data = '';
$object = $obj ?: $this->data;
foreach (self::$fulltext_cols as $colname) {
list($col, $field) = explode(':', $colname);
if ($field) {
$a = array();
foreach ((array)$object[$col] as $attr)
$a[] = $attr[$field];
$val = join(' ', $a);
}
else {
$val = is_array($object[$col]) ? join(' ', $object[$col]) : $object[$col];
}
if (strlen($val))
$data .= $val . ' ';
}
$words = rcube_utils::normalize_string($data, true);
// collect words from recurrence exceptions
if (is_array($object['exceptions'])) {
foreach ($object['exceptions'] as $exception) {
$words = array_merge($words, $this->get_words($exception));
}
}
return array_unique($words);
}
/**
* Callback for kolab_storage_cache to get object specific tags to cache
*
* @return array List of tags to save in cache
*/
public function get_tags($obj = null)
{
$tags = array();
$object = $obj ?: $this->data;
if (!empty($object['valarms'])) {
$tags[] = 'x-has-alarms';
}
// create tags reflecting participant status
if (is_array($object['attendees'])) {
foreach ($object['attendees'] as $attendee) {
if (!empty($attendee['email']) && !empty($attendee['status']))
$tags[] = 'x-partstat:' . $attendee['email'] . ':' . strtolower($attendee['status']);
}
}
// collect tags from recurrence exceptions
if (is_array($object['exceptions'])) {
foreach ($object['exceptions'] as $exception) {
$tags = array_merge($tags, $this->get_tags($exception));
}
}
if (!empty($object['status'])) {
$tags[] = 'x-status:' . strtolower($object['status']);
}
return array_unique($tags);
}
/**
* Identify changes considered relevant for scheduling
*
* @param array Hash array with NEW object properties
* @param array Hash array with OLD object properties
*
* @return boolean True if changes affect scheduling, False otherwise
*/
public function check_rescheduling($object, $old = null)
{
$reschedule = false;
if (!is_array($old)) {
$old = $this->data['uid'] ? $this->data : $this->to_array();
}
foreach ($this->_scheduling_properties ?: self::$scheduling_properties as $prop) {
$a = $old[$prop];
$b = $object[$prop];
if ($object['allday'] && ($prop == 'start' || $prop == 'end') && $a instanceof DateTime && $b instanceof DateTime) {
$a = $a->format('Y-m-d');
$b = $b->format('Y-m-d');
}
if ($prop == 'recurrence' && is_array($a) && is_array($b)) {
unset($a['EXCEPTIONS'], $b['EXCEPTIONS']);
$a = array_filter($a);
$b = array_filter($b);
// advanced rrule comparison: no rescheduling if series was shortened
if ($a['COUNT'] && $b['COUNT'] && $b['COUNT'] < $a['COUNT']) {
unset($a['COUNT'], $b['COUNT']);
}
else if ($a['UNTIL'] && $b['UNTIL'] && $b['UNTIL'] < $a['UNTIL']) {
unset($a['UNTIL'], $b['UNTIL']);
}
}
if ($a != $b) {
$reschedule = true;
break;
}
}
return $reschedule;
}
/**
* Clones into an instance of libcalendaring's extended EventCal class
*
* @return mixed EventCal object or false on failure
*/
public function to_libcal()
{
static $error_logged = false;
if (class_exists('kolabcalendaring')) {
return new EventCal($this->obj);
}
else if (!$error_logged) {
$error_logged = true;
rcube::raise_error(array(
'code' => 900,
- 'message' => "required kolabcalendaring module not found"
+ 'message' => "Required kolabcalendaring module not found"
), true);
}
return false;
}
}

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