rc1: plugins/calendar/drivers/kolab/kolab

comparison plugins/calendar/drivers/kolab/kolab_calendar.php @ 3:f6fe4b6ae66a

calendar plugin nearly as distributed

author	Charlie Root
date	Sat, 13 Jan 2018 08:56:12 -0500
parents
children

comparison

equal deleted inserted replaced

-:c828b0fd4a6e
+:f6fe4b6ae66a
+<?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'])) {
+$this->get_recurring_events($record, $master['start'], null, $id);
+}
+}
+}
+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)$event['recurrence']['EXDATE'];
+foreach ($exdates as $exdate) {
+if ($exdate->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) $links);
+}
+/**
+* Create instances of a recurring event
+*
+* @param array  Hash array with event properties
+* @param object DateTime Start date of the recurrence window
+* @param object DateTime End date of the recurrence window
+* @param string ID of a specific recurring event instance
+* @return array List of recurring event instances
+*/
+public function get_recurring_events($event, $start, $end = null, $event_id = null)
+{
+$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]);
+}
+// use libkolab to compute recurring events
+if (class_exists('kolabcalendaring')) {
+$recurrence = new kolab_date_recurrence($object);
+}
+else {
+// fallback to local recurrence implementation
+require_once($this->cal->home . '/lib/calendar_recurrence.php');
+$recurrence = new calendar_recurrence($this->cal, $event);
+}
+$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] = $rec_event;
+break;
+}
+}
+else if ($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']);
+}
+if ($this->get_namespace() == 'other') {
+$record['className'] = 'fc-event-ns-other';
+$record = kolab_driver::add_partstat_class($record, array('NEEDS-ACTION','DECLINED'), $this->get_owner());
+}
+// add instance identifier to first occurrence (master event)
+$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);
+}
+}

Mercurial > hg > rc1

comparison plugins/calendar/drivers/kolab/kolab_calendar.php @ 3:f6fe4b6ae66a