2186 lines
79 KiB
PHP
2186 lines
79 KiB
PHP
<?php
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/**
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* CalDAV driver for the Calendar plugin
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*
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* @author Daniel Morlock <daniel.morlock@awesome-it.de>
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* @author JodliDev <jodlidev@gmail.com>
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*
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* Copyright (C) Awesome IT GbR <info@awesome-it.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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require_once 'caldav_sync.php';
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require_once 'encryption.php';
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class caldav_driver extends calendar_driver
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{
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const DB_DATE_FORMAT = 'Y-m-d H:i:s';
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public static $scheduling_properties = array('start', 'end', 'allday', 'recurrence', 'location', 'cancelled');
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// features this backend supports
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public $alarms = true;
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public $attendees = true;
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public $freebusy = false;
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public $attachments = true;
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public $alarm_types = array('DISPLAY');
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private $rc;
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private $cal;
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private $cache = array();
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private $calendars = array();
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private $calendar_ids = '';
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private $free_busy_map = array('free' => 0, 'busy' => 1, 'out-of-office' => 2, 'outofoffice' => 2, 'tentative' => 3);
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private $sensitivity_map = array('public' => 0, 'private' => 1, 'confidential' => 2);
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private $server_timezone;
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private $db_sources = 'caldav_sources';
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private $db_calendars = 'caldav_calendars';
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private $db_events = 'caldav_events';
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private $db_attachments = 'caldav_attachments';
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// Holds CalDAV sync clients
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private $sync_clients = array();
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// Min. time period to wait until CalDAV sync check.
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private $sync_period = 10; // seconds
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// Indicates debug mode for CalDAV
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static private $debug = null;
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/**
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* Helper method to log debug msg if debug mode is enabled.
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*/
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static public function debug_log($msg)
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{
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if(self::$debug === true)
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rcmail::console(__CLASS__.': '.$msg);
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}
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/**
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* Helper method to log (if debug mode is enabled) and raise an user error.
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*/
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private function _raise_error($msg)
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{
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self::debug_log($msg);
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$this->rc->output->show_message($msg, 'error');
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}
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/**
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* Default constructor
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*/
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public function __construct($cal)
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{
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$this->cal = $cal;
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$this->rc = $cal->rc;
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$this->server_timezone = new DateTimeZone(date_default_timezone_get());
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// read database config
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$db = $this->rc->get_dbh();
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$this->db_sources = $this->rc->config->get('db_table_caldav_sources', $db->table_name($this->db_sources));
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$this->db_calendars = $this->rc->config->get('db_table_caldav_calendars', $db->table_name($this->db_calendars));
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$this->db_events = $this->rc->config->get('db_table_caldav_events', $db->table_name($this->db_events));
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$this->db_attachments = $this->rc->config->get('db_table_caldav_attachments', $db->table_name($this->db_attachments));
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// Set debug state
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if(self::$debug === null)
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self::$debug = $this->rc->config->get('calendar_caldav_debug', False);
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$this->_read_calendars();
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}
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/**
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* Read available calendars for the current user and store them internally
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*/
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protected function _read_calendars()
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{
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$hidden = array_filter(explode(',', $this->rc->config->get('hidden_caldav_calendars', '')));
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if (!empty($this->rc->user->ID)) {
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$calendar_ids = array();
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$result = $this->rc->db->query('SELECT
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cal.calendar_id AS `calendar_id`,
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cal.source_id AS `source_id`,
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cal.name AS `name`,
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cal.color AS `color`,
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cal.showalarms AS `showalarms`,
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cal.caldav_tag AS `caldav_tag`,
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cal.caldav_url AS `caldav_url`,
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s.caldav_user AS `caldav_user`,
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s.caldav_pass AS `caldav_pass`,
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cal.caldav_last_change AS `caldav_last_change`,
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cal.calendar_id AS `id`
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FROM ' . $this->db_calendars . ' AS cal
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LEFT JOIN ' .$this->db_sources .' AS s ON (cal.source_id = s.source_id)
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WHERE cal.user_id=?
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ORDER BY name',
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$this->rc->user->ID
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);
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while ($result && ($arr = $this->rc->db->fetch_assoc($result))) {
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$arr['showalarms'] = intval($arr['showalarms']);
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$arr['active'] = !in_array($arr['id'], $hidden);
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$arr['name'] = html::quote($arr['name']);
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$arr['listname'] = html::quote($arr['name']);
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$arr['rights'] = 'lrswikxteav';
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$arr['editable'] = true;
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$arr['caldav_pass'] = $this->_decrypt_pass($arr['caldav_pass']);
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$this->calendars[$arr['calendar_id']] = $arr;
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$calendar_ids[] = $this->rc->db->quote($arr['calendar_id']);
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// Init sync client
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$cal_id = $arr['calendar_id'];
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$this->sync_clients[$cal_id] = new caldav_sync($arr);
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}
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$this->calendar_ids = join(',', $calendar_ids);
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}
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}
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/**
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* Get a list of available calendars from this source
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*
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* @param integer Bitmask defining filter criterias
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*
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* @return array List of calendars
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*/
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public function list_calendars($filter = 0)
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{
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$calendars = $this->calendars;
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// filter active calendars
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if ($filter & self::FILTER_ACTIVE) {
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foreach ($calendars as $idx => $cal) {
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if (!$cal['active']) {
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unset($calendars[$idx]);
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}
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}
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}
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// 'personal' is unsupported in this driver
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// append the virtual birthdays calendar
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if ($this->rc->config->get('calendar_contact_birthdays', false)) {
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$prefs = $this->rc->config->get('birthday_calendar', array('color' => '87CEFA'));
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$hidden = array_filter(explode(',', $this->rc->config->get('hidden_calendars', '')));
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$id = self::BIRTHDAY_CALENDAR_ID;
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if (empty($active) || !in_array($id, $hidden)) {
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$calendars[$id] = array(
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'id' => $id,
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'name' => $this->cal->gettext('birthdays'),
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'listname' => $this->cal->gettext('birthdays'),
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'color' => $prefs['color'],
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'showalarms' => (bool)$this->rc->config->get('calendar_birthdays_alarm_type'),
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'active' => !in_array($id, $hidden),
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'group' => 'x-birthdays',
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'editable' => false,
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'default' => false,
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'children' => false,
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);
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}
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}
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return $calendars;
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}
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/**
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* Creates CalDAV calendar or call create_source()
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* (we use the same function for both calendar and source to stay compatible with other drivers)
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*
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* @see database_driver::create_calendar()
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*/
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public function create_calendar($cal)
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{
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if(isset($cal['new-source'])) {
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return $this->create_source($cal);
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}
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else {
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$result = $this->rc->db->query('SELECT source_id, caldav_url, caldav_user, caldav_pass
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FROM ' . $this->db_sources . '
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WHERE user_id=? AND source_id=?',
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$this->rc->user->ID,
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$cal['source_id']
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);
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if(!$result || !($source = $this->rc->db->fetch_assoc($result))) {
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return false;
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}
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$server_url = self::_encode_url($source['caldav_url']);
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$server_path = parse_url($server_url, PHP_URL_PATH);
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$calId = $this->cal->generate_uid();
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$path = "/calendars/$source[caldav_user]/$calId";
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self::debug_log("Creating new calendar \"$cal[name]\" with path $path at: " . $server_url);
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$client = new caldav_client($server_url, $source["caldav_user"], $source["caldav_pass"]);
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if($client->create_calendar($server_path . $path, $cal['name'], isset($cal['color']) ? $cal['color'] : 'cc0000')) {
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$calendars = $this->_autodiscover_calendars($source);
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return $this->_add_calendars($calendars, $source);
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}
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}
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}
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private function _add_calendars($calendars, $source) {
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$cal_ids = array();
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$result = false;
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if($calendars)
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{
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$result = true;
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foreach ($calendars as $calendar)
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{
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// Skip already existent calendars
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$result = $this->rc->db->query("SELECT * FROM ".$this->db_calendars." WHERE user_id=? and caldav_url LIKE ?", $this->rc->user->ID, $calendar['href']);
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if($this->rc->db->affected_rows($result)) continue;
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$cal = array(
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'caldav_url' => self::_encode_url($calendar['href']),
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'name' => $calendar['name'],
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'color' => $calendar['color']
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);
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if (($obj_id = $this->_db_create_calendar($cal, $source)) !== false) {
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array_push($cal_ids, $obj_id);
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} else $result = false;
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}
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}
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// Sync newly created calendars
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if($cal_ids) {
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// Re-read calendars to internal buffer.
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$this->_read_calendars();
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// Initial sync of newly created calendars.
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foreach ($cal_ids as $cal_id) {
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$this->_sync_calendar($cal_id);
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}
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}
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return $result;
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}
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/**
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* Adds CalDAV source and loads adds all calendars from that source
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*
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* @see database_driver::create_calendar()
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*/
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public function create_source($source)
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{
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$source['caldav_url'] = self::_encode_url($source['caldav_url']);
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try {
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$calendars = $this->_autodiscover_calendars($source);
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}
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catch(Exception $e) {
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self::debug_log("Could not add source: $source");
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}
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if($calendars) {
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$pass = isset($source['caldav_pass']) ? $this->_encrypt_pass($source['caldav_pass']) : null;
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$db_source_result = $this->rc->db->query(
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"INSERT INTO " . $this->db_sources . "
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(user_id, caldav_url, caldav_user, caldav_pass)
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VALUES (?, ?, ?, ?)",
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$this->rc->user->ID,
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$source['caldav_url'],
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isset($source['caldav_user']) ? $source['caldav_user'] : null,
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$pass
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);
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if($db_source_result)
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$source['source_id'] = $this->rc->db->insert_id($this->db_sources);
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else {
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self::debug_log("Could not save source $source[caldav_url] to db");
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return false;
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}
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return $this->_add_calendars($calendars, $source);
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}
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else {
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self::debug_log("Did not find any calendars at $source[caldav_url]. Aborting");
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return false;
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}
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}
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/**
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* Create a new calendar assigned to the current user
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*
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* @param array Hash array with calendar properties
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* name: Calendar name
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* color: The color of the calendar
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* caldav_url: CalDAV calendar URL
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* caldav_tag: CalDAV calendar ctag
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* caldav_user: CalDAV authentication user
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* caldav_pass: CalDAV authentication password
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*
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* @return mixed ID of the calendar on success, False on error
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*/
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private function _db_create_calendar($prop, $source)
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{
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$result = $this->rc->db->query(
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"INSERT INTO " . $this->db_calendars . "
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(user_id, source_id, name, color, showalarms, caldav_url, caldav_tag)
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VALUES (?, ?, ?, ?, ?, ?, ?)",
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$this->rc->user->ID,
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$source['source_id'],
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$prop['name'],
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$prop['color'],
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$prop['showalarms']?1:0,
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$prop['caldav_url'],
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isset($prop["caldav_tag"]) ? $prop["caldav_tag"] : null
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);
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if ($result)
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return $this->rc->db->insert_id($this->db_calendars);
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return false;
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}
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/**
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* Update properties of an existing calendar
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*
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* @see calendar_driver::edit_calendar()
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*/
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public function edit_calendar($cal)
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{
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$query = $this->rc->db->query("UPDATE " . $this->db_calendars . "
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SET name=?, color=?, showalarms=?
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WHERE calendar_id=?
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AND user_id=?",
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$cal['name'],
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$cal['color'],
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$cal['showalarms']?1:0,
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$cal['id'],
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$this->rc->user->ID
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);
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return $this->rc->db->affected_rows($query);
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}
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/**
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* Set active/subscribed state of a calendar
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* Save a list of hidden calendars in user prefs
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*
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* @see calendar_driver::subscribe_calendar()
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*/
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public function subscribe_calendar($prop)
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{
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$hidden = array_flip(explode(',', $this->rc->config->get('hidden_caldav_calendars', '')));
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if ($prop['active'])
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unset($hidden[$prop['id']]);
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else
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$hidden[$prop['id']] = 1;
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return $this->rc->user->save_prefs(array('hidden_caldav_calendars' => join(',', array_keys($hidden))));
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}
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/**
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* Delete the given calendar or source with all its contents
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* (we use the same function for both calendar and source to stay compatible with other drivers)
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*
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* @see calendar_driver::delete_calendar()
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*/
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public function delete_calendar($prop)
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{
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// events and attachments will be deleted by foreign key cascade
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if(isset($prop['delete-source'])) {
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unset($prop['delete-source']);
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$count = 0;
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foreach($prop as $url) {
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self::debug_log("Deleting source id $url");
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$query = $this->rc->db->query("DELETE FROM " . $this->db_sources . " WHERE source_id=?", $url);
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$count += $this->rc->db->affected_rows($query);
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}
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self::debug_log("Deleted $count entries");
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return $count;
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}
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else {
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if(!$this->calendars[$prop['id']])
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return false;
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if(!$this->sync_clients[$prop['id']]->delete_calendar())
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return false;
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$query = $this->rc->db->query(
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"DELETE FROM " . $this->db_calendars . " WHERE calendar_id=?",
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$prop['id']
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);
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return $this->rc->db->affected_rows($query);
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}
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}
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/**
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* Search for shared or otherwise not listed calendars the user has access
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*
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* @param string Search string
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* @param string Section/source to search
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* @return array List of calendars
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*/
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public function search_calendars($query, $source)
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{
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// not implemented
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return array();
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}
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/**
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* Add a single event to the database
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*
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* @param array Hash array with event properties
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* @see calendar_driver::new_event()
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*/
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public function new_event($event)
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{
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if (!$this->validate($event))
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return false;
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if (!empty($this->calendars)) {
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if ($event['calendar'] && !$this->calendars[$event['calendar']])
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return false;
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if (!$event['calendar']) {
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$keys = array_keys($this->calendars);
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$event['calendar'] = reset($keys);
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}
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if($event = $this->_save_preprocess($event)) {
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$sync_client = $this->sync_clients[$event["calendar"]];
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// Only push event if caldav_tag is not set to avoid pushing it twice
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if (isset($event["caldav_tag"]) || ($event = $sync_client->create_event($event)) !== false) {
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if ($event_id = $this->_insert_event($event)) {
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$this->_update_recurring($event);
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}
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}
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}
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return $event_id;
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}
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return false;
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}
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/**
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*
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*/
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private function _insert_event(&$event)
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{
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//$event = $this->_save_preprocess($event);
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$this->rc->db->query(sprintf(
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"INSERT INTO " . $this->db_events . "
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(calendar_id, created, changed, uid, recurrence_id, instance, isexception, %s, %s, all_day, recurrence,
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title, description, location, categories, url, free_busy, priority, sensitivity, status, attendees, alarms, notifyat,
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caldav_url, caldav_tag)
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VALUES (?, %s, %s, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
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$this->rc->db->quote_identifier('start'),
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$this->rc->db->quote_identifier('end'),
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$this->rc->db->now(),
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$this->rc->db->now()
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),
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$event['calendar'],
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strval($event['uid']),
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intval($event['recurrence_id']),
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strval($event['_instance']),
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intval($event['isexception']),
|
|
$event['start']->format(self::DB_DATE_FORMAT),
|
|
$event['end']->format(self::DB_DATE_FORMAT),
|
|
intval($event['all_day']),
|
|
$event['_recurrence'],
|
|
strval($event['title']),
|
|
strval($event['description']),
|
|
strval($event['location']),
|
|
join(',', (array)$event['categories']),
|
|
strval($event['url']),
|
|
intval($event['free_busy']),
|
|
intval($event['priority']),
|
|
intval($event['sensitivity']),
|
|
strval($event['status']),
|
|
$event['attendees'],
|
|
$event['alarms'],
|
|
$event['notifyat'],
|
|
$event['caldav_url'],
|
|
$event['caldav_tag']
|
|
);
|
|
|
|
$event_id = $this->rc->db->insert_id($this->db_events);
|
|
|
|
if ($event_id) {
|
|
$event['id'] = $event_id;
|
|
|
|
// add attachments
|
|
if (!empty($event['attachments'])) {
|
|
foreach ($event['attachments'] as $attachment) {
|
|
$this->add_attachment($attachment, $event_id);
|
|
unset($attachment);
|
|
}
|
|
}
|
|
|
|
return $event_id;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Update the event entry with the given data and sync with caldav server.
|
|
*
|
|
* @param array Hash array with event properties
|
|
* @param array Internal use only, filled with non-modified event if this is second try after a calendar sync was enforced first.
|
|
* @see caldav_driver::_db_edit_event()
|
|
* @return bool
|
|
*/
|
|
public function edit_event($event, $old_event = null)
|
|
{
|
|
$sync_enforced = ($old_event != null);
|
|
$event_id = (int)$event["id"];
|
|
$cal_id = $event["calendar"];
|
|
|
|
if($old_event == null)
|
|
$old_event = $this->get_event($event);
|
|
|
|
if($this->_db_edit_event($event))
|
|
{
|
|
// Re-load updated event and push to caldav.
|
|
$event = $this->get_event(array("id" => $event_id));
|
|
|
|
$sync_client = $this->sync_clients[$cal_id];
|
|
$success = $sync_client->update_event($event);
|
|
|
|
if($success === true)
|
|
{
|
|
self::debug_log("Successfully updated event \"$event_id\".");
|
|
|
|
// Trigger calendar sync to update ctags and etags.
|
|
$this->_sync_calendar($cal_id);
|
|
|
|
return true;
|
|
}
|
|
else if($success < 0 && $sync_enforced == false)
|
|
{
|
|
self::debug_log("Event \"$event_id\", tag \"".$event["caldav_tag"]."\" not up to date, will update calendar first ...");
|
|
$this->_sync_calendar($cal_id);
|
|
|
|
return $this->edit_event($event, $old_event); // Re-try after re-sync
|
|
}
|
|
else
|
|
{
|
|
$this->_db_edit_event($old_event);
|
|
$this->_raise_error("Could not update event: Unexpected CalDAV error.");
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Update an event entry with the given data
|
|
*
|
|
* @param array Hash array with event properties
|
|
* @see calendar_driver::edit_event()
|
|
* @return bool
|
|
*/
|
|
private function _db_edit_event($event)
|
|
{
|
|
if (!empty($this->calendars)) {
|
|
$update_master = false;
|
|
$update_recurring = true;
|
|
$old = $this->get_event($event);
|
|
$ret = true;
|
|
|
|
// check if update affects scheduling and update attendee status accordingly
|
|
$reschedule = $this->_check_scheduling($event, $old, true);
|
|
|
|
// increment sequence number
|
|
if (empty($event['sequence']) && $reschedule)
|
|
$event['sequence'] = max($event['sequence'], $old['sequence']) + 1;
|
|
|
|
// modify a recurring event, check submitted savemode to do the right things
|
|
if ($old['recurrence'] || $old['recurrence_id']) {
|
|
$master = $old['recurrence_id'] ? $this->get_event(array('id' => $old['recurrence_id'])) : $old;
|
|
|
|
// keep saved exceptions (not submitted by the client)
|
|
if ($old['recurrence']['EXDATE'])
|
|
$event['recurrence']['EXDATE'] = $old['recurrence']['EXDATE'];
|
|
|
|
switch ($event['_savemode']) {
|
|
case 'new':
|
|
$event['uid'] = $this->cal->generate_uid();
|
|
return $this->new_event($event);
|
|
|
|
case 'current':
|
|
// save as exception
|
|
$event['isexception'] = 1;
|
|
$update_recurring = false;
|
|
|
|
// set exception to first instance (= master)
|
|
if ($event['id'] == $master['id']) {
|
|
$event += $old;
|
|
$event['recurrence_id'] = $master['id'];
|
|
$event['_instance'] = libcalendaring::recurrence_instance_identifier($old);
|
|
$event['isexception'] = 1;
|
|
$event_id = $this->_insert_event($event);
|
|
return $event_id;
|
|
}
|
|
break;
|
|
|
|
case 'future':
|
|
if ($master['id'] != $event['id']) {
|
|
// set until-date on master event, then save this instance as new recurring event
|
|
$master['recurrence']['UNTIL'] = clone $event['start'];
|
|
$master['recurrence']['UNTIL']->sub(new DateInterval('P1D'));
|
|
unset($master['recurrence']['COUNT']);
|
|
$update_master = true;
|
|
|
|
// if recurrence COUNT, update value to the correct number of future occurences
|
|
if ($event['recurrence']['COUNT']) {
|
|
$fromdate = clone $event['start'];
|
|
$fromdate->setTimezone($this->server_timezone);
|
|
$sqlresult = $this->rc->db->query(sprintf(
|
|
"SELECT event_id FROM " . $this->db_events . "
|
|
WHERE calendar_id IN (%s)
|
|
AND %s >= ?
|
|
AND recurrence_id=?",
|
|
$this->calendar_ids,
|
|
$this->rc->db->quote_identifier('start')
|
|
),
|
|
$fromdate->format(self::DB_DATE_FORMAT),
|
|
$master['id']);
|
|
if ($count = $this->rc->db->num_rows($sqlresult))
|
|
$event['recurrence']['COUNT'] = $count;
|
|
}
|
|
|
|
$update_recurring = true;
|
|
$event['recurrence_id'] = 0;
|
|
$event['isexception'] = 0;
|
|
$event['_instance'] = '';
|
|
break;
|
|
}
|
|
// else: 'future' == 'all' if modifying the master event
|
|
|
|
default: // 'all' is default
|
|
$event['id'] = $master['id'];
|
|
$event['recurrence_id'] = 0;
|
|
|
|
// use start date from master but try to be smart on time or duration changes
|
|
$old_start_date = $old['start']->format('Y-m-d');
|
|
$old_start_time = $old['allday'] ? '' : $old['start']->format('H:i');
|
|
$old_duration = $old['end']->format('U') - $old['start']->format('U');
|
|
|
|
$new_start_date = $event['start']->format('Y-m-d');
|
|
$new_start_time = $event['allday'] ? '' : $event['start']->format('H:i');
|
|
$new_duration = $event['end']->format('U') - $event['start']->format('U');
|
|
|
|
$diff = $old_start_date != $new_start_date || $old_start_time != $new_start_time || $old_duration != $new_duration;
|
|
$date_shift = $old['start']->diff($event['start']);
|
|
|
|
// shifted or resized
|
|
if ($diff && ($old_start_date == $new_start_date || $old_duration == $new_duration)) {
|
|
$event['start'] = $master['start']->add($old['start']->diff($event['start']));
|
|
$event['end'] = clone $event['start'];
|
|
$event['end']->add(new DateInterval('PT' . $new_duration . 'S'));
|
|
} // dates did not change, use the ones from master
|
|
else if ($new_start_date . $new_start_time == $old_start_date . $old_start_time) {
|
|
$event['start'] = $master['start'];
|
|
$event['end'] = $master['end'];
|
|
}
|
|
|
|
// adjust recurrence-id when start changed and therefore the entire recurrence chain changes
|
|
if (is_array($event['recurrence']) && ($old_start_date != $new_start_date || $old_start_time != $new_start_time)
|
|
&& ($exceptions = $this->_load_exceptions($old))
|
|
) {
|
|
$recurrence_id_format = libcalendaring::recurrence_id_format($event);
|
|
foreach ($exceptions as $exception) {
|
|
$recurrence_id = rcube_utils::anytodatetime($exception['_instance'], $old['start']->getTimezone());
|
|
if (is_a($recurrence_id, 'DateTime') || is_a($recurrence_id, 'DateTimeImmutable')) {
|
|
$recurrence_id->add($date_shift);
|
|
$exception['_instance'] = $recurrence_id->format($recurrence_id_format);
|
|
$this->_update_event($exception, false);
|
|
}
|
|
}
|
|
}
|
|
|
|
$ret = $event['id']; // return master ID
|
|
break;
|
|
}
|
|
}
|
|
|
|
$success = $this->_update_event($event, $update_recurring);
|
|
|
|
if ($success && $update_master)
|
|
$this->_update_event($master, true);
|
|
|
|
return $success ? $ret : false;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Extended event editing with possible changes to the argument
|
|
*
|
|
* @param array Hash array with event properties
|
|
* @param string New participant status
|
|
* @param array List of hash arrays with updated attendees
|
|
* @return boolean True on success, False on error
|
|
*/
|
|
public function edit_rsvp(&$event, $status, $attendees)
|
|
{
|
|
$update_event = $event;
|
|
|
|
// apply changes to master (and all exceptions)
|
|
if ($event['_savemode'] == 'all' && $event['recurrence_id']) {
|
|
$update_event = $this->get_event(array('id' => $event['recurrence_id']));
|
|
$update_event['_savemode'] = $event['_savemode'];
|
|
calendar::merge_attendee_data($update_event, $attendees);
|
|
}
|
|
|
|
if ($ret = $this->update_attendees($update_event, $attendees)) {
|
|
// replace $event with effectively updated event (for iTip reply)
|
|
if ($ret !== true && $ret != $update_event['id'] && ($new_event = $this->get_event(array('id' => $ret)))) {
|
|
$event = $new_event;
|
|
} else {
|
|
$event = $update_event;
|
|
}
|
|
}
|
|
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* Update the participant status for the given attendees
|
|
*
|
|
* @see calendar_driver::update_attendees()
|
|
*/
|
|
public function update_attendees(&$event, $attendees)
|
|
{
|
|
$success = $this->edit_event($event, true);
|
|
|
|
// apply attendee updates to recurrence exceptions too
|
|
if ($success && $event['_savemode'] == 'all' && !empty($event['recurrence']) && empty($event['recurrence_id']) && ($exceptions = $this->_load_exceptions($event))) {
|
|
foreach ($exceptions as $exception) {
|
|
calendar::merge_attendee_data($exception, $attendees);
|
|
$this->_update_event($exception, false);
|
|
}
|
|
}
|
|
|
|
return $success;
|
|
}
|
|
|
|
/**
|
|
* Determine whether the current change affects scheduling and reset attendee status accordingly
|
|
*/
|
|
private function _check_scheduling(&$event, $old, $update = true)
|
|
{
|
|
// skip this check when importing iCal/iTip events
|
|
if (isset($event['sequence']) || !empty($event['_method'])) {
|
|
return false;
|
|
}
|
|
|
|
$reschedule = false;
|
|
|
|
// iterate through the list of properties considered 'significant' for scheduling
|
|
foreach (self::$scheduling_properties as $prop) {
|
|
$a = $old[$prop];
|
|
$b = $event[$prop];
|
|
if ($event['allday'] && ($prop == 'start' || $prop == 'end') && ($a instanceof DateTime || $a instanceof DateTimeImmutable) && ($b instanceof DateTime || $b instanceof DateTimeImmutable)) {
|
|
$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) {
|
|
$reschedule = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// reset all attendee status to needs-action (#4360)
|
|
if ($update && $reschedule && is_array($event['attendees'])) {
|
|
$is_organizer = false;
|
|
$emails = $this->cal->get_user_emails();
|
|
$attendees = $event['attendees'];
|
|
foreach ($attendees as $i => $attendee) {
|
|
if ($attendee['role'] == 'ORGANIZER' && $attendee['email'] && in_array(strtolower($attendee['email']), $emails)) {
|
|
$is_organizer = true;
|
|
} else if ($attendee['role'] != 'ORGANIZER' && $attendee['role'] != 'NON-PARTICIPANT' && $attendee['status'] != 'DELEGATED') {
|
|
$attendees[$i]['status'] = 'NEEDS-ACTION';
|
|
$attendees[$i]['rsvp'] = true;
|
|
}
|
|
}
|
|
|
|
// update attendees only if I'm the organizer
|
|
if ($is_organizer || ($event['organizer'] && in_array(strtolower($event['organizer']['email']), $emails))) {
|
|
$event['attendees'] = $attendees;
|
|
}
|
|
}
|
|
|
|
return $reschedule;
|
|
}
|
|
|
|
/**
|
|
* Convert save data to be used in SQL statements
|
|
*/
|
|
private function _save_preprocess($event)
|
|
{
|
|
// shift dates to server's timezone (except for all-day events)
|
|
if (!$event['allday']) {
|
|
$event['start'] = clone $event['start'];
|
|
$event['start']->setTimezone($this->server_timezone);
|
|
$event['end'] = clone $event['end'];
|
|
$event['end']->setTimezone($this->server_timezone);
|
|
}
|
|
|
|
// compose vcalendar-style recurrencue rule from structured data
|
|
$rrule = $event['recurrence'] ? libcalendaring::to_rrule($event['recurrence']) : '';
|
|
$event['_recurrence'] = rtrim($rrule, ';');
|
|
$event['free_busy'] = intval($this->free_busy_map[strtolower($event['free_busy'])]);
|
|
$event['sensitivity'] = intval($this->sensitivity_map[strtolower($event['sensitivity'])]);
|
|
|
|
if ($event['free_busy'] == 'tentative') {
|
|
$event['status'] = 'TENTATIVE';
|
|
}
|
|
|
|
if (isset($event['allday'])) {
|
|
$event['all_day'] = $event['allday'] ? 1 : 0;
|
|
}
|
|
|
|
// compute absolute time to notify the user
|
|
$event['notifyat'] = $this->_get_notification($event);
|
|
|
|
if (is_array($event['valarms'])) {
|
|
$event['alarms'] = $this->serialize_alarms($event['valarms']);
|
|
}
|
|
|
|
// process event attendees
|
|
if (!empty($event['attendees']))
|
|
$event['attendees'] = json_encode((array)$event['attendees']);
|
|
else
|
|
$event['attendees'] = '';
|
|
|
|
return $event;
|
|
}
|
|
|
|
/**
|
|
* Compute absolute time to notify the user
|
|
*/
|
|
private function _get_notification($event)
|
|
{
|
|
if ($event['valarms'] && $event['start'] > new DateTime()) {
|
|
$alarm = libcalendaring::get_next_alarm($event);
|
|
|
|
if ($alarm['time'] && in_array($alarm['action'], $this->alarm_types))
|
|
return date('Y-m-d H:i:s', $alarm['time']);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Save the given event record to database
|
|
*
|
|
* @param array Event data
|
|
* @param boolean True if recurring events instances should be updated, too
|
|
*/
|
|
private function _update_event($event, $update_recurring = true)
|
|
{
|
|
$event = $this->_save_preprocess($event);
|
|
$sql_set = array();
|
|
$set_cols = array('start', 'end', 'all_day', 'recurrence_id', 'isexception', 'sequence', 'title', 'description', 'location', 'categories', 'url', 'free_busy', 'priority', 'sensitivity', 'status', 'attendees', 'alarms', 'notifyat', 'caldav_url', 'caldav_tag');
|
|
foreach ($set_cols as $col) {
|
|
if (is_object($event[$col]) && (is_a($event[$col], 'DateTime') || is_a($event[$col], 'DateTimeImmutable')))
|
|
$sql_set[] = $this->rc->db->quote_identifier($col) . '=' . $this->rc->db->quote($event[$col]->format(self::DB_DATE_FORMAT));
|
|
else if (is_array($event[$col]))
|
|
$sql_set[] = $this->rc->db->quote_identifier($col) . '=' . $this->rc->db->quote(join(',', $event[$col]));
|
|
else if (array_key_exists($col, $event))
|
|
$sql_set[] = $this->rc->db->quote_identifier($col) . '=' . $this->rc->db->quote($event[$col]);
|
|
}
|
|
|
|
if ($event['_recurrence'])
|
|
$sql_set[] = $this->rc->db->quote_identifier('recurrence') . '=' . $this->rc->db->quote($event['_recurrence']);
|
|
|
|
if ($event['_instance'])
|
|
$sql_set[] = $this->rc->db->quote_identifier('instance') . '=' . $this->rc->db->quote($event['_instance']);
|
|
|
|
if ($event['_fromcalendar'] && $event['_fromcalendar'] != $event['calendar'])
|
|
$sql_set[] = 'calendar_id=' . $this->rc->db->quote($event['calendar']);
|
|
|
|
$query = $this->rc->db->query(sprintf(
|
|
"UPDATE " . $this->db_events . "
|
|
SET changed=%s %s
|
|
WHERE event_id=?
|
|
AND calendar_id IN (" . $this->calendar_ids . ")",
|
|
$this->rc->db->now(),
|
|
($sql_set ? ', ' . join(', ', $sql_set) : '')
|
|
),
|
|
$event['id']
|
|
);
|
|
|
|
$success = $this->rc->db->affected_rows($query);
|
|
|
|
// add attachments
|
|
if ($success && !empty($event['attachments'])) {
|
|
foreach ($event['attachments'] as $attachment) {
|
|
$this->add_attachment($attachment, $event['id']);
|
|
unset($attachment);
|
|
}
|
|
}
|
|
|
|
// remove attachments
|
|
if ($success && !empty($event['deleted_attachments'])) {
|
|
foreach ($event['deleted_attachments'] as $attachment) {
|
|
$this->remove_attachment($attachment, $event['id']);
|
|
}
|
|
}
|
|
|
|
if ($success) {
|
|
unset($this->cache[$event['id']]);
|
|
if ($update_recurring)
|
|
$this->_update_recurring($event);
|
|
}
|
|
|
|
return $success;
|
|
}
|
|
|
|
/**
|
|
* Insert "fake" entries for recurring occurences of this event
|
|
*/
|
|
private function _update_recurring($event)
|
|
{
|
|
if (empty($this->calendars))
|
|
return;
|
|
|
|
if (!empty($event['recurrence'])) {
|
|
$exdata = array();
|
|
$exceptions = $this->_load_exceptions($event);
|
|
|
|
foreach ($exceptions as $exception) {
|
|
$exdate = substr($exception['_instance'], 0, 8);
|
|
$exdata[$exdate] = $exception;
|
|
}
|
|
}
|
|
|
|
// clear existing recurrence copies
|
|
$this->rc->db->query(
|
|
"DELETE FROM " . $this->db_events . "
|
|
WHERE recurrence_id=?
|
|
AND isexception=0
|
|
AND calendar_id IN (" . $this->calendar_ids . ")",
|
|
$event['id']
|
|
);
|
|
|
|
// create new fake entries
|
|
if (!empty($event['recurrence'])) {
|
|
// include library class
|
|
require_once($this->cal->home . '/lib/calendar_recurrence.php');
|
|
|
|
$recurrence = new calendar_recurrence($this->cal, $event);
|
|
|
|
$count = 0;
|
|
$event['allday'] = $event['all_day'];
|
|
$duration = $event['start']->diff($event['end']);
|
|
$recurrence_id_format = libcalendaring::recurrence_id_format($event);
|
|
while ($next_start = $recurrence->next_start()) {
|
|
$instance = $next_start->format($recurrence_id_format);
|
|
$datestr = substr($instance, 0, 8);
|
|
|
|
// skip exceptions
|
|
// TODO: merge updated data from master event
|
|
if ($exdata[$datestr]) {
|
|
continue;
|
|
}
|
|
|
|
$next_start->setTimezone($this->server_timezone);
|
|
$next_end = clone $next_start;
|
|
$next_end->add($duration);
|
|
|
|
$notify_at = $this->_get_notification(array('alarms' => $event['alarms'], 'start' => $next_start, 'end' => $next_end, 'status' => $event['status']));
|
|
$query = $this->rc->db->query(sprintf(
|
|
"INSERT INTO " . $this->db_events . "
|
|
(calendar_id, recurrence_id, created, changed, uid, instance, %s, %s, all_day, sequence, recurrence, title, description, location, categories, url, free_busy, priority, sensitivity, status, alarms, attendees, notifyat, caldav_url, caldav_tag)
|
|
SELECT calendar_id, ?, %s, %s, uid, ?, ?, ?, all_day, sequence, recurrence, title, description, location, categories, url, free_busy, priority, sensitivity, status, alarms, attendees, ?, caldav_url, caldav_tag
|
|
FROM " . $this->db_events . " WHERE event_id=? AND calendar_id IN (" . $this->calendar_ids . ")",
|
|
$this->rc->db->quote_identifier('start'),
|
|
$this->rc->db->quote_identifier('end'),
|
|
$this->rc->db->now(),
|
|
$this->rc->db->now()
|
|
),
|
|
$event['id'],
|
|
$instance,
|
|
$next_start->format(self::DB_DATE_FORMAT),
|
|
$next_end->format(self::DB_DATE_FORMAT),
|
|
$notify_at,
|
|
$event['id']
|
|
);
|
|
|
|
if (!$this->rc->db->affected_rows($query))
|
|
break;
|
|
|
|
// stop adding events for inifinite recurrence after 20 years
|
|
if (++$count > 999 || (!$recurrence->recurEnd && !$recurrence->recurCount && $next_start->format('Y') > date('Y') + 20))
|
|
break;
|
|
}
|
|
|
|
// remove all exceptions after recurrence end
|
|
if ($next_end && !empty($exceptions)) {
|
|
$this->rc->db->query(
|
|
"DELETE FROM " . $this->db_events . "
|
|
WHERE `recurrence_id`=?
|
|
AND `isexception`=1
|
|
AND `start` > ?
|
|
AND `calendar_id` IN (" . $this->calendar_ids . ")",
|
|
$event['id'],
|
|
$next_end->format(self::DB_DATE_FORMAT)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
private function _load_exceptions($event, $instance_id = null)
|
|
{
|
|
$sql_add_where = '';
|
|
if (!empty($instance_id)) {
|
|
$sql_add_where = 'AND `instance`=?';
|
|
}
|
|
|
|
$result = $this->rc->db->query(
|
|
"SELECT * FROM " . $this->db_events . "
|
|
WHERE `recurrence_id`=?
|
|
AND `isexception`=1
|
|
AND `calendar_id` IN (" . $this->calendar_ids . ")
|
|
$sql_add_where
|
|
ORDER BY `instance`, `start`",
|
|
$event['id'],
|
|
$instance_id
|
|
);
|
|
|
|
$exceptions = array();
|
|
while ($result && ($sql_arr = $this->rc->db->fetch_assoc($result)) && $sql_arr['event_id']) {
|
|
$exception = $this->_read_postprocess($sql_arr);
|
|
$instance = $exception['_instance'] ?: $exception['start']->format($exception['allday'] ? 'Ymd' : 'Ymd\THis');
|
|
$exceptions[$instance] = $exception;
|
|
}
|
|
|
|
return $exceptions;
|
|
}
|
|
|
|
/**
|
|
* Move a single event
|
|
*
|
|
* @param array Hash array with event properties
|
|
* @see calendar_driver::move_event()
|
|
* @return bool
|
|
*/
|
|
public function move_event($event)
|
|
{
|
|
// let edit_event() do all the magic
|
|
return $this->edit_event($event + (array)$this->get_event($event));
|
|
}
|
|
|
|
/**
|
|
* Resize a single event
|
|
*
|
|
* @param array Hash array with event properties
|
|
* @see calendar_driver::resize_event()
|
|
* @return bool
|
|
*/
|
|
public function resize_event($event)
|
|
{
|
|
// let edit_event() do all the magic
|
|
return $this->edit_event($event + (array)$this->get_event($event));
|
|
}
|
|
|
|
/**
|
|
* Remove a single event from the database and from the CalDAV server.
|
|
*
|
|
* @param array Hash array with event properties
|
|
* @param boolean Remove record irreversible
|
|
*
|
|
* @see calendar_driver::remove_event()
|
|
* @return bool
|
|
*/
|
|
public function remove_event($event, $force = true)
|
|
{
|
|
$event_id = (int)$event["id"];
|
|
$cal_id = (int)$event["calendar"];
|
|
$event = $this->get_event($event);
|
|
|
|
$sync_client = $this->sync_clients[$cal_id];
|
|
$success = $sync_client->remove_event($event);
|
|
|
|
if($success === true)
|
|
{
|
|
$this->_db_remove_event($event, $force);
|
|
self::debug_log("Successfully removed event \"$event_id\".");
|
|
|
|
// Trigger calendar sync to update ctags and etags.
|
|
$this->_sync_calendar($cal_id);
|
|
|
|
return true;
|
|
}
|
|
|
|
$this->_raise_error("Could not remove event: Unexpected CalDAV error.");
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Remove a single event from the database
|
|
*
|
|
* @param array Hash array with event properties
|
|
* @param boolean Remove record irreversible (@TODO)
|
|
*
|
|
* @see calendar_driver::remove_event()
|
|
* @return bool
|
|
*/
|
|
private function _db_remove_event($event, $force = true)
|
|
{
|
|
if (!empty($this->calendars)) {
|
|
$event += (array)$this->get_event($event);
|
|
$master = $event;
|
|
$update_master = false;
|
|
$savemode = 'all';
|
|
$ret = true;
|
|
|
|
// read master if deleting a recurring event
|
|
if ($event['recurrence'] || $event['recurrence_id']) {
|
|
$master = $event['recurrence_id'] ? $this->get_event(array('id' => $event['recurrence_id'])) : $event;
|
|
$savemode = $event['_savemode'];
|
|
}
|
|
|
|
switch ($savemode) {
|
|
case 'current':
|
|
// add exception to master event
|
|
$master['recurrence']['EXDATE'][] = $event['start'];
|
|
$update_master = true;
|
|
|
|
// just delete this single occurence
|
|
$query = $this->rc->db->query(
|
|
"DELETE FROM " . $this->db_events . "
|
|
WHERE calendar_id IN (" . $this->calendar_ids . ")
|
|
AND event_id=?",
|
|
$event['id']
|
|
);
|
|
break;
|
|
|
|
case 'future':
|
|
if ($master['id'] != $event['id']) {
|
|
// set until-date on master event
|
|
$master['recurrence']['UNTIL'] = clone $event['start'];
|
|
$master['recurrence']['UNTIL']->sub(new DateInterval('P1D'));
|
|
unset($master['recurrence']['COUNT']);
|
|
$update_master = true;
|
|
|
|
// delete this and all future instances
|
|
$fromdate = clone $event['start'];
|
|
$fromdate->setTimezone($this->server_timezone);
|
|
$query = $this->rc->db->query(
|
|
"DELETE FROM " . $this->db_events . "
|
|
WHERE calendar_id IN (" . $this->calendar_ids . ")
|
|
AND " . $this->rc->db->quote_identifier('start') . " >= ?
|
|
AND recurrence_id=?",
|
|
$fromdate->format(self::DB_DATE_FORMAT),
|
|
$master['id']
|
|
);
|
|
$ret = $master['id'];
|
|
break;
|
|
}
|
|
// else: future == all if modifying the master event
|
|
|
|
default: // 'all' is default
|
|
$query = $this->rc->db->query(
|
|
"DELETE FROM " . $this->db_events . "
|
|
WHERE (event_id=? OR recurrence_id=?)
|
|
AND calendar_id IN (" . $this->calendar_ids . ")",
|
|
$master['id'],
|
|
$master['id']
|
|
);
|
|
break;
|
|
}
|
|
|
|
$success = $this->rc->db->affected_rows($query);
|
|
if ($success && $update_master)
|
|
$this->_update_event($master, true);
|
|
|
|
return $success ? $ret : false;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Return data of a specific event
|
|
* @param mixed Hash array with event properties or event UID
|
|
* @param integer Bitmask defining the scope to search events in
|
|
* @param boolean If true, recurrence exceptions shall be added
|
|
* @return array Hash array with event properties
|
|
*/
|
|
public function get_event($event, $scope = 0, $full = false)
|
|
{
|
|
$id = is_array($event) ? ($event['id'] ?: $event['uid']) : $event;
|
|
$cal = is_array($event) ? $event['calendar'] : null;
|
|
$col = is_array($event) && is_numeric($id) ? 'event_id' : 'uid';
|
|
|
|
$where_add = '';
|
|
if (is_array($event) && !$event['id'] && !empty($event['_instance'])) {
|
|
$where_add = 'AND instance=' . $this->rc->db->quote($event['_instance']);
|
|
}
|
|
|
|
if ($this->cache[$id])
|
|
return $this->cache[$id];
|
|
|
|
if ($scope & self::FILTER_ACTIVE) {
|
|
$calendars = $this->calendars;
|
|
foreach ($calendars as $idx => $cal) {
|
|
if (!$cal['active']) {
|
|
unset($calendars[$idx]);
|
|
}
|
|
}
|
|
$cals = join(',', $calendars);
|
|
} else {
|
|
$cals = $this->calendar_ids;
|
|
}
|
|
|
|
$result = $this->rc->db->query(sprintf(
|
|
"SELECT e.*, (SELECT COUNT(attachment_id) FROM " . $this->db_attachments . "
|
|
WHERE event_id = e.event_id OR event_id = e.recurrence_id) AS _attachments
|
|
FROM " . $this->db_events . " AS e
|
|
WHERE e.calendar_id IN (%s)
|
|
AND e.$col=?
|
|
%s",
|
|
$cals,
|
|
$where_add
|
|
),
|
|
$id);
|
|
|
|
if ($result && ($sql_arr = $this->rc->db->fetch_assoc($result)) && $sql_arr['event_id']) {
|
|
$event = $this->_read_postprocess($sql_arr);
|
|
|
|
// also load recurrence exceptions
|
|
if (!empty($event['recurrence']) && $full) {
|
|
$event['recurrence']['EXCEPTIONS'] = array_values($this->_load_exceptions($event));
|
|
}
|
|
|
|
$this->cache[$id] = $event;
|
|
return $this->cache[$id];
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Sync and returns event data
|
|
*
|
|
* @see calendar_driver::load_events()
|
|
*/
|
|
public function load_events($start, $end, $query = null, $calendars = null, $virtual = 1, $modifiedsince = null)
|
|
{
|
|
if (empty($calendars))
|
|
$calendars = array_keys($this->calendars);
|
|
else if (!is_array($calendars))
|
|
$calendars = explode(',', strval($calendars));
|
|
|
|
// only allow to select from calendars of this use
|
|
$calendar_ids = array_intersect($calendars, array_keys($this->calendars));
|
|
|
|
// Make sure that the calendars are in sync.
|
|
try {
|
|
foreach($calendar_ids as $cal_id) {
|
|
if(!$this->_is_synced($cal_id))
|
|
$this->_sync_calendar($cal_id);
|
|
}
|
|
}
|
|
catch(Exception $err) {
|
|
self::debug_log("Could not sync calendars: $err");
|
|
return [];
|
|
}
|
|
|
|
$events = $this->_db_load_events($start, $end, $query, $calendars, $virtual, $modifiedsince);
|
|
|
|
// add events from the address books birthday calendar
|
|
if (in_array(self::BIRTHDAY_CALENDAR_ID, $calendars) && empty($query)) {
|
|
$events = array_merge($events, $this->load_birthday_events($start, $end, null, $modifiedsince));
|
|
}
|
|
|
|
return $events;
|
|
}
|
|
|
|
/**
|
|
* Get event data
|
|
*
|
|
* @see calendar_driver::load_events()
|
|
*/
|
|
private function _db_load_events($start, $end, $query = null, $calendars = null, $virtual = 1, $modifiedsince = null)
|
|
{
|
|
if (empty($calendars))
|
|
$calendars = array_keys($this->calendars);
|
|
else if (!is_array($calendars))
|
|
$calendars = explode(',', strval($calendars));
|
|
|
|
// only allow to select from calendars of this use
|
|
$calendar_ids = array_map(array($this->rc->db, 'quote'), array_intersect($calendars, array_keys($this->calendars)));
|
|
|
|
// compose (slow) SQL query for searching
|
|
// FIXME: improve searching using a dedicated col and normalized values
|
|
if ($query) {
|
|
foreach (array('title', 'location', 'description', 'categories', 'attendees') as $col)
|
|
$sql_query[] = $this->rc->db->ilike($col, '%' . $query . '%');
|
|
$sql_add = 'AND (' . join(' OR ', $sql_query) . ')';
|
|
}
|
|
|
|
if (!$virtual)
|
|
$sql_add .= ' AND e.recurrence_id = 0';
|
|
|
|
if ($modifiedsince)
|
|
$sql_add .= ' AND e.changed >= ' . $this->rc->db->quote(date('Y-m-d H:i:s', $modifiedsince));
|
|
|
|
$events = array();
|
|
if (!empty($calendar_ids)) {
|
|
$result = $this->rc->db->query(sprintf(
|
|
"SELECT e.*, (SELECT COUNT(attachment_id) FROM " . $this->db_attachments . "
|
|
WHERE event_id = e.event_id OR event_id = e.recurrence_id) AS _attachments
|
|
FROM " . $this->db_events . " e
|
|
WHERE e.calendar_id IN (%s)
|
|
AND e.start <= %s AND e.end >= %s
|
|
%s",
|
|
join(',', $calendar_ids),
|
|
$this->rc->db->fromunixtime($end),
|
|
$this->rc->db->fromunixtime($start),
|
|
$sql_add
|
|
));
|
|
|
|
while ($result && ($sql_arr = $this->rc->db->fetch_assoc($result))) {
|
|
$event = $this->_read_postprocess($sql_arr);
|
|
$add = true;
|
|
|
|
if (!empty($event['recurrence']) && !$event['recurrence_id']) {
|
|
// load recurrence exceptions (i.e. for export)
|
|
if (!$virtual) {
|
|
$event['recurrence']['EXCEPTIONS'] = $this->_load_exceptions($event);
|
|
} // check for exception on first instance
|
|
else {
|
|
$instance = libcalendaring::recurrence_instance_identifier($event);
|
|
$exceptions = $this->_load_exceptions($event, $instance);
|
|
if ($exceptions && is_array($exceptions[$instance])) {
|
|
$event = $exceptions[$instance];
|
|
$add = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($add)
|
|
$events[] = $event;
|
|
}
|
|
}
|
|
|
|
return $events;
|
|
}
|
|
|
|
/**
|
|
* Get number of events in the given calendar
|
|
*
|
|
* @param mixed List of calendar IDs to count events (either as array or comma-separated string)
|
|
* @param integer Date range start (unix timestamp)
|
|
* @param integer Date range end (unix timestamp)
|
|
* @return array Hash array with counts grouped by calendar ID
|
|
*/
|
|
public function count_events($calendars, $start, $end = null)
|
|
{
|
|
// not implemented
|
|
return array();
|
|
}
|
|
|
|
/**
|
|
* Convert sql record into a rcube style event object
|
|
*/
|
|
private function _read_postprocess($event)
|
|
{
|
|
$free_busy_map = array_flip($this->free_busy_map);
|
|
$sensitivity_map = array_flip($this->sensitivity_map);
|
|
|
|
$event['id'] = $event['event_id'];
|
|
$event['start'] = new DateTime($event['start']);
|
|
$event['end'] = new DateTime($event['end']);
|
|
$event['allday'] = intval($event['all_day']);
|
|
$event['created'] = new DateTime($event['created']);
|
|
$event['changed'] = new DateTime($event['changed']);
|
|
$event['free_busy'] = $free_busy_map[$event['free_busy']];
|
|
$event['sensitivity'] = $sensitivity_map[$event['sensitivity']];
|
|
$event['calendar'] = $event['calendar_id'];
|
|
$event['recurrence_id'] = intval($event['recurrence_id']);
|
|
$event['isexception'] = intval($event['isexception']);
|
|
|
|
// parse recurrence rule
|
|
if ($event['recurrence'] && preg_match_all('/([A-Z]+)=([^;]+);?/', $event['recurrence'], $m, PREG_SET_ORDER)) {
|
|
$event['recurrence'] = array();
|
|
foreach ($m as $rr) {
|
|
if (is_numeric($rr[2]))
|
|
$rr[2] = intval($rr[2]);
|
|
else if ($rr[1] == 'UNTIL')
|
|
$rr[2] = date_create($rr[2]);
|
|
else if ($rr[1] == 'RDATE')
|
|
$rr[2] = array_map('date_create', explode(',', $rr[2]));
|
|
else if ($rr[1] == 'EXDATE')
|
|
$rr[2] = array_map('date_create', explode(',', $rr[2]));
|
|
$event['recurrence'][$rr[1]] = $rr[2];
|
|
}
|
|
}
|
|
|
|
if ($event['recurrence_id']) {
|
|
libcalendaring::identify_recurrence_instance($event);
|
|
}
|
|
|
|
if (strlen($event['instance'])) {
|
|
$event['_instance'] = $event['instance'];
|
|
|
|
if (empty($event['recurrence_id'])) {
|
|
$event['recurrence_date'] = rcube_utils::anytodatetime($event['_instance'], $event['start']->getTimezone());
|
|
}
|
|
}
|
|
|
|
if ($event['_attachments'] > 0) {
|
|
$event['attachments'] = (array)$this->list_attachments($event);
|
|
}
|
|
|
|
// decode serialized event attendees
|
|
if (strlen($event['attendees'])) {
|
|
$event['attendees'] = $this->unserialize_attendees($event['attendees']);
|
|
} else {
|
|
$event['attendees'] = array();
|
|
}
|
|
|
|
// decode serialized alarms
|
|
if ($event['alarms']) {
|
|
$event['valarms'] = $this->unserialize_alarms($event['alarms']);
|
|
}
|
|
|
|
unset($event['event_id'], $event['calendar_id'], $event['notifyat'], $event['all_day'], $event['instance'], $event['_attachments']);
|
|
return $event;
|
|
}
|
|
|
|
/**
|
|
* Get a list of pending alarms to be displayed to the user
|
|
*
|
|
* @see calendar_driver::pending_alarms()
|
|
*/
|
|
public function pending_alarms($time, $calendars = null)
|
|
{
|
|
if (empty($calendars))
|
|
$calendars = array_keys($this->calendars);
|
|
else if (is_string($calendars))
|
|
$calendars = explode(',', $calendars);
|
|
|
|
// only allow to select from calendars with activated alarms
|
|
$calendar_ids = array();
|
|
foreach ($calendars as $cid) {
|
|
if ($this->calendars[$cid] && $this->calendars[$cid]['showalarms'])
|
|
$calendar_ids[] = $cid;
|
|
}
|
|
$calendar_ids = array_map(array($this->rc->db, 'quote'), $calendar_ids);
|
|
|
|
$alarms = array();
|
|
if (!empty($calendar_ids)) {
|
|
$result = $this->rc->db->query(sprintf(
|
|
"SELECT * FROM " . $this->db_events . "
|
|
WHERE calendar_id IN (%s)
|
|
AND notifyat <= %s AND %s > %s",
|
|
join(',', $calendar_ids),
|
|
$this->rc->db->fromunixtime($time),
|
|
$this->rc->db->quote_identifier('end'),
|
|
$this->rc->db->fromunixtime($time)
|
|
));
|
|
|
|
while ($result && ($event = $this->rc->db->fetch_assoc($result)))
|
|
$alarms[] = $this->_read_postprocess($event);
|
|
}
|
|
|
|
return $alarms;
|
|
}
|
|
|
|
/**
|
|
* Feedback after showing/sending an alarm notification
|
|
*
|
|
* @see calendar_driver::dismiss_alarm()
|
|
*/
|
|
public function dismiss_alarm($event_id, $snooze = 0)
|
|
{
|
|
// set new notifyat time or unset if not snoozed
|
|
$notify_at = $snooze > 0 ? date(self::DB_DATE_FORMAT, time() + $snooze) : null;
|
|
|
|
$query = $this->rc->db->query(sprintf(
|
|
"UPDATE " . $this->db_events . "
|
|
SET changed=%s, notifyat=?
|
|
WHERE event_id=?
|
|
AND calendar_id IN (" . $this->calendar_ids . ")",
|
|
$this->rc->db->now()),
|
|
$notify_at,
|
|
$event_id
|
|
);
|
|
|
|
return $this->rc->db->affected_rows($query);
|
|
}
|
|
|
|
/**
|
|
* Save an attachment related to the given event
|
|
*/
|
|
private function add_attachment($attachment, $event_id)
|
|
{
|
|
$data = $attachment['data'] ? $attachment['data'] : file_get_contents($attachment['path']);
|
|
|
|
$query = $this->rc->db->query(
|
|
"INSERT INTO " . $this->db_attachments .
|
|
" (event_id, filename, mimetype, size, data)" .
|
|
" VALUES (?, ?, ?, ?, ?)",
|
|
$event_id,
|
|
$attachment['name'],
|
|
$attachment['mimetype'],
|
|
strlen($data),
|
|
base64_encode($data)
|
|
);
|
|
|
|
return $this->rc->db->affected_rows($query);
|
|
}
|
|
|
|
/**
|
|
* Remove a specific attachment from the given event
|
|
*/
|
|
private function remove_attachment($attachment_id, $event_id)
|
|
{
|
|
$query = $this->rc->db->query(
|
|
"DELETE FROM " . $this->db_attachments .
|
|
" WHERE attachment_id = ?" .
|
|
" AND event_id IN (SELECT event_id FROM " . $this->db_events .
|
|
" WHERE event_id = ?" .
|
|
" AND calendar_id IN (" . $this->calendar_ids . "))",
|
|
$attachment_id,
|
|
$event_id
|
|
);
|
|
|
|
return $this->rc->db->affected_rows($query);
|
|
}
|
|
|
|
/**
|
|
* List attachments of specified event
|
|
*/
|
|
public function list_attachments($event)
|
|
{
|
|
$attachments = array();
|
|
|
|
if (!empty($this->calendar_ids)) {
|
|
$result = $this->rc->db->query(
|
|
"SELECT attachment_id AS id, filename AS name, mimetype, size " .
|
|
" FROM " . $this->db_attachments .
|
|
" WHERE event_id IN (SELECT event_id FROM " . $this->db_events .
|
|
" WHERE event_id=?" .
|
|
" AND calendar_id IN (" . $this->calendar_ids . "))".
|
|
" ORDER BY filename",
|
|
$event['recurrence_id'] ? $event['recurrence_id'] : $event['event_id']
|
|
);
|
|
|
|
while ($result && ($arr = $this->rc->db->fetch_assoc($result))) {
|
|
$attachments[] = $arr;
|
|
}
|
|
}
|
|
|
|
return $attachments;
|
|
}
|
|
|
|
/**
|
|
* Get attachment properties
|
|
*/
|
|
public function get_attachment($id, $event)
|
|
{
|
|
if (!empty($this->calendar_ids)) {
|
|
$result = $this->rc->db->query(
|
|
"SELECT attachment_id AS id, filename AS name, mimetype, size " .
|
|
" FROM " . $this->db_attachments .
|
|
" WHERE attachment_id=?".
|
|
" AND event_id=?",
|
|
$id,
|
|
$event['recurrence_id'] ? $event['recurrence_id'] : $event['id']
|
|
);
|
|
|
|
if ($result && ($arr = $this->rc->db->fetch_assoc($result))) {
|
|
return $arr;
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Get attachment body
|
|
*/
|
|
public function get_attachment_body($id, $event)
|
|
{
|
|
if (!empty($this->calendar_ids)) {
|
|
$result = $this->rc->db->query(
|
|
"SELECT data " .
|
|
" FROM " . $this->db_attachments .
|
|
" WHERE attachment_id=?".
|
|
" AND event_id=?",
|
|
$id,
|
|
$event['id']
|
|
);
|
|
|
|
if ($result && ($arr = $this->rc->db->fetch_assoc($result))) {
|
|
return base64_decode($arr['data']);
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Remove the given category
|
|
*/
|
|
public function remove_category($name)
|
|
{
|
|
$query = $this->rc->db->query(
|
|
"UPDATE " . $this->db_events . "
|
|
SET categories=''
|
|
WHERE categories=?
|
|
AND calendar_id IN (" . $this->calendar_ids . ")",
|
|
$name
|
|
);
|
|
|
|
return $this->rc->db->affected_rows($query);
|
|
}
|
|
|
|
/**
|
|
* Update/replace a category
|
|
*/
|
|
public function replace_category($oldname, $name, $color)
|
|
{
|
|
$query = $this->rc->db->query(
|
|
"UPDATE " . $this->db_events . "
|
|
SET categories=?
|
|
WHERE categories=?
|
|
AND calendar_id IN (" . $this->calendar_ids . ")",
|
|
$name,
|
|
$oldname
|
|
);
|
|
|
|
return $this->rc->db->affected_rows($query);
|
|
}
|
|
|
|
/**
|
|
* Helper method to serialize the list of alarms into a string
|
|
*/
|
|
private function serialize_alarms($valarms)
|
|
{
|
|
foreach ((array)$valarms as $i => $alarm) {
|
|
if ($alarm['trigger'] instanceof DateTime || $alarm['trigger'] instanceof DateTimeImmutable) {
|
|
$valarms[$i]['trigger'] = '@' . $alarm['trigger']->format('c');
|
|
}
|
|
}
|
|
|
|
return $valarms ? json_encode($valarms) : null;
|
|
}
|
|
|
|
/**
|
|
* Helper method to decode a serialized list of alarms
|
|
*/
|
|
private function unserialize_alarms($alarms)
|
|
{
|
|
// decode json serialized alarms
|
|
if ($alarms && $alarms[0] == '[') {
|
|
$valarms = json_decode($alarms, true);
|
|
foreach ($valarms as $i => $alarm) {
|
|
if ($alarm['trigger'][0] == '@') {
|
|
try {
|
|
$valarms[$i]['trigger'] = new DateTime(substr($alarm['trigger'], 1));
|
|
}
|
|
catch (Exception $e) {
|
|
unset($valarms[$i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// convert legacy alarms data
|
|
else if (strlen($alarms)) {
|
|
list($trigger, $action) = explode(':', $alarms, 2);
|
|
if ($trigger = libcalendaring::parse_alarm_value($trigger)) {
|
|
$valarms = array(array('action' => $action, 'trigger' => $trigger[3] ?: $trigger[0]));
|
|
}
|
|
}
|
|
|
|
return $valarms;
|
|
}
|
|
|
|
/**
|
|
* Helper method to decode the attendees list from string
|
|
*/
|
|
private function unserialize_attendees($s_attendees)
|
|
{
|
|
$attendees = array();
|
|
|
|
// decode json serialized string
|
|
if ($s_attendees[0] == '[') {
|
|
$attendees = json_decode($s_attendees, true);
|
|
} // decode the old serialization format
|
|
else {
|
|
foreach (explode("\n", $s_attendees) as $line) {
|
|
$att = array();
|
|
foreach (rcube_utils::explode_quoted_string(';', $line) as $prop) {
|
|
list($key, $value) = explode("=", $prop);
|
|
$att[strtolower($key)] = stripslashes(trim($value, '""'));
|
|
}
|
|
$attendees[] = $att;
|
|
}
|
|
}
|
|
|
|
return $attendees;
|
|
}
|
|
|
|
/**
|
|
* Handler for user_delete plugin hook
|
|
*/
|
|
public function user_delete($args)
|
|
{
|
|
$db = $this->rc->db;
|
|
$user = $args['user'];
|
|
$event_ids = array();
|
|
|
|
$events = $db->query(
|
|
"SELECT event_id FROM " . $this->db_events . " AS ev" .
|
|
" LEFT JOIN " . $this->db_calendars . " cal ON (ev.calendar_id = cal.calendar_id)".
|
|
" WHERE user_id=?",
|
|
$user->ID);
|
|
|
|
while ($row = $db->fetch_assoc($events)) {
|
|
$event_ids[] = $row['event_id'];
|
|
}
|
|
|
|
if (!empty($event_ids)) {
|
|
foreach (array($this->db_attachments, $this->db_events) as $table) {
|
|
$db->query(sprintf("DELETE FROM $table WHERE event_id IN (%s)", join(',', $event_ids)));
|
|
}
|
|
}
|
|
|
|
foreach (array($this->db_sources, $this->db_calendars, 'itipinvitations') as $table) {
|
|
$db->query("DELETE FROM $table WHERE user_id=?", $user->ID);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Callback function to produce driver-specific calendar create/edit form
|
|
* We are misusing calendar_form() for sources to stay compatible with the other drivers
|
|
* and not having to change too much of the original code
|
|
*
|
|
* @param string Request action 'form-edit|form-new'
|
|
* @param array Calendar properties (e.g. id, color)
|
|
* @param array Edit form fields
|
|
*
|
|
* @return string HTML content of the form
|
|
*/
|
|
public function calendar_form($action, $calendar, $formfields)
|
|
{
|
|
switch($action) {
|
|
case "form-source-new":
|
|
array_splice($formfields, 0);
|
|
|
|
$input_caldav_url = new html_inputfield( array(
|
|
"name" => "caldav_url",
|
|
"id" => "caldav_url",
|
|
"size" => 20
|
|
));
|
|
$formfields["caldav_url"] = array(
|
|
"label" => $this->cal->gettext("url"),
|
|
"value" => $input_caldav_url->show(null),
|
|
"id" => "caldav_url",
|
|
);
|
|
|
|
|
|
$input_caldav_user = new html_inputfield( array(
|
|
"name" => "caldav_user",
|
|
"id" => "caldav_user",
|
|
"size" => 20
|
|
));
|
|
$formfields["caldav_user"] = array(
|
|
"label" => $this->cal->gettext("username"),
|
|
"value" => $input_caldav_user->show(null),
|
|
"id" => "caldav_user",
|
|
);
|
|
|
|
|
|
$input_caldav_pass = new html_passwordfield( array(
|
|
"name" => "caldav_pass",
|
|
"id" => "caldav_pass",
|
|
"size" => 20
|
|
));
|
|
$formfields["caldav_pass"] = array(
|
|
"label" => $this->cal->gettext("password"),
|
|
"value" => $input_caldav_pass->show(null),
|
|
"id" => "caldav_pass",
|
|
);
|
|
break;
|
|
case "form-source-delete":
|
|
array_splice($formfields, 0);
|
|
|
|
$result = $this->rc->db->query("SELECT source_id, caldav_url FROM ".$this->db_sources);
|
|
if($this->rc->db->num_rows($result)) {
|
|
for($i=0; $source = $this->rc->db->fetch_assoc($result); ++$i) {
|
|
$checkbox = new html_checkbox( array(
|
|
"name" => "delete$i",
|
|
"value" => $source['source_id']
|
|
));
|
|
|
|
$formfields[$source['source_id']] = array(
|
|
"label" => $source['caldav_url'],
|
|
"value" => $checkbox->show(null),
|
|
"id" => "caldav_url",
|
|
);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
|
|
return parent::calendar_form($action, $calendar, $formfields);
|
|
}
|
|
|
|
/**
|
|
* Encodes directory- and filenames using rawurlencode().
|
|
*
|
|
* @see http://stackoverflow.com/questions/7973790/urlencode-only-the-directory-and-file-names-of-a-url
|
|
* @param string Unencoded URL to be encoded.
|
|
* @return Encoded URL.
|
|
*/
|
|
private static function _encode_url($url)
|
|
{
|
|
// Don't encode if "%" is already used.
|
|
if(strstr($url, "%") === false)
|
|
{
|
|
return preg_replace_callback('#://([^/]+)/([^?]+)#', function ($matches) {
|
|
return '://' . $matches[1] . '/' . join('/', array_map('rawurlencode', explode('/', $matches[2])));
|
|
}, $url);
|
|
}
|
|
else return $url;
|
|
}
|
|
|
|
|
|
/**
|
|
* Auto discover calenders available to the user on the caldav server
|
|
* @param array $props
|
|
* caldav_url: Absolute URL to CalDAV server
|
|
* caldav_user: Username
|
|
* caldav_pass: Password
|
|
* @return False on error or an array with the following calendar props:
|
|
* name: Calendar display name
|
|
* href: Absolute calendar URL
|
|
*/
|
|
private function _autodiscover_calendars($props)
|
|
{
|
|
$calendars = array();
|
|
$current_user_principal = array('{DAV:}current-user-principal');
|
|
$calendar_home_set = array('{urn:ietf:params:xml:ns:caldav}calendar-home-set');
|
|
$cal_attribs = array('{DAV:}resourcetype', '{DAV:}displayname', '{http://apple.com/ns/ical/}calendar-color');
|
|
|
|
require_once 'caldav_client.php';
|
|
$caldav = new caldav_client($props["caldav_url"], $props["caldav_user"], $props["caldav_pass"]);
|
|
|
|
$tokens = parse_url($props["caldav_url"]);
|
|
$base_uri = $tokens['scheme']."://".$tokens['host'].($tokens['port'] ? ":".$tokens['port'] : null);
|
|
$caldav_url = $props["caldav_url"];
|
|
$response = $caldav->prop_find($caldav_url, array_merge($current_user_principal,$cal_attribs), 0);
|
|
if (!$response) {
|
|
$this->_raise_error("Resource \"$caldav_url\" has no collections");
|
|
return false;
|
|
}
|
|
else if (array_key_exists ('{DAV:}resourcetype', $response) &&
|
|
$response['{DAV:}resourcetype'] instanceof Sabre\DAV\Xml\Property\ResourceType &&
|
|
in_array('{urn:ietf:params:xml:ns:caldav}calendar',
|
|
$response['{DAV:}resourcetype']->getValue())) {
|
|
|
|
$name = '';
|
|
if (array_key_exists ('{DAV:}displayname', $response)) {
|
|
$name = $response['{DAV:}displayname'];
|
|
}
|
|
|
|
array_push($calendars, array(
|
|
'name' => $name,
|
|
'href' => $caldav_url,
|
|
));
|
|
return $calendars;
|
|
// directly return given url as it is a calendar
|
|
}
|
|
// probe further for principal url and user home set
|
|
// $caldav_url = $base_uri . $response[$current_user_principal[0]]; //### I guess this was the format that "OldSabre" in the original library used
|
|
$caldav_url = $base_uri . $response[$current_user_principal[0]][0]['value'];
|
|
$response = $caldav->prop_find($caldav_url, $calendar_home_set, 0);
|
|
if (!$response) {
|
|
$this->_raise_error("Resource \"$caldav_url\" contains no calendars.");
|
|
return false;
|
|
}
|
|
// $caldav_url = $base_uri . $response[$calendar_home_set[0]]; //### I guess this was the format that "OldSabre" in the original library used
|
|
$caldav_url = $base_uri . $response[$calendar_home_set[0]][0]['value'];
|
|
$response = $caldav->prop_find($caldav_url, $cal_attribs, 1);
|
|
foreach($response as $collection => $attribs)
|
|
{
|
|
$found = false;
|
|
$name = '';
|
|
$color = null;
|
|
foreach($attribs as $key => $value)
|
|
{
|
|
if ($key == '{DAV:}resourcetype' && is_object($value)) {
|
|
if ($value instanceof Sabre\DAV\Xml\Property\ResourceType) {
|
|
$values = $value->getValue();
|
|
if (in_array('{urn:ietf:params:xml:ns:caldav}calendar', $values))
|
|
$found = true;
|
|
}
|
|
}
|
|
else if ($key == '{DAV:}displayname') {
|
|
$name = $value;
|
|
}
|
|
else if ($key == '{http://apple.com/ns/ical/}calendar-color') {
|
|
//Thanks to https://github.com/agendav/agendav/blob/10397b6c04a52acd6cb9528683f9e167d516cdb5/web/src/CalDAV/Resource/Calendar.php#L264
|
|
if (strlen($value) === 7) {
|
|
return $value . 'ff';
|
|
}
|
|
|
|
if (strlen($value) === 4) {
|
|
preg_match('/#(.)(.)(.)/', $value, $matches);
|
|
return '#' .
|
|
$matches[1] .$matches[1] .
|
|
$matches[2] .$matches[2] .
|
|
$matches[3] .$matches[3] .
|
|
'ff';
|
|
}
|
|
|
|
}
|
|
}
|
|
if ($found) {
|
|
array_push($calendars, array(
|
|
'name' => $name,
|
|
'href' => $base_uri.$collection,
|
|
'color' => $color ?: 'cc0000'
|
|
));
|
|
}
|
|
}
|
|
|
|
return $calendars;
|
|
}
|
|
|
|
/**
|
|
* Synchronizes events of given calendar.
|
|
*
|
|
* @param int Calendar ID to sync
|
|
*/
|
|
private function _sync_calendar($cal_id)
|
|
{
|
|
self::debug_log("Syncing calendar id \"$cal_id\".");
|
|
|
|
$cal_sync = $this->sync_clients[$cal_id];
|
|
$events = array();
|
|
|
|
// Ignore recurrence events and read caldav props
|
|
foreach($this->_load_all_events($cal_id) as $event) {
|
|
if($event["recurrence_id"] == 0) {
|
|
array_push($events, $event);
|
|
}
|
|
}
|
|
|
|
$updates = $cal_sync->get_updates($events);
|
|
if($updates)
|
|
{
|
|
list($updates, $synced_event_ids) = $updates;
|
|
$updated_event_ids = $this->_perform_updates($updates);
|
|
|
|
// Delete events that are not in sync or updated.
|
|
foreach($events as $event)
|
|
{
|
|
if(array_search($event["id"], $updated_event_ids) === false && // No updated event
|
|
array_search($event["id"], $synced_event_ids) === false) // No in-sync event
|
|
{
|
|
// Assume: Event not in sync and not updated, so delete!
|
|
$this->_db_remove_event($event, true);
|
|
self::debug_log("Remove event \"".$event["id"]."\".");
|
|
}
|
|
}
|
|
|
|
// Update calendar ctag ...
|
|
$calendar = $this->calendars[$cal_id];
|
|
$calendar["caldav_tag"] = $cal_sync->get_ctag();
|
|
$this->edit_calendar($calendar);
|
|
}
|
|
|
|
self::debug_log("Successfully synced calendar id \"$cal_id\".");
|
|
}
|
|
|
|
/**
|
|
* Return all events from the given calendar.
|
|
*
|
|
* @param int Calendar id.
|
|
* @return array
|
|
*/
|
|
private function _load_all_events($cal_id)
|
|
{
|
|
// FIXME: This is kind of ugly but a way to get _all_ events without touching the database driver.
|
|
|
|
// Get the event with the maximum end time.
|
|
$result = $this->rc->db->query(
|
|
"SELECT MAX(e.end) as end FROM ".$this->db_events." e ".
|
|
"WHERE e.calendar_id = ? ", $cal_id);
|
|
|
|
if($result && ($arr = $this->rc->db->fetch_assoc($result))) {
|
|
$end = new DateTime($arr["end"]);
|
|
|
|
// Don't use load_events() which is doing another sync while this method might be already invoked in an sync.
|
|
return $this->_db_load_events(0, $end->getTimestamp(), null, array($cal_id));
|
|
}
|
|
else return array();
|
|
}
|
|
|
|
/**
|
|
* Performs caldav updates on given events.
|
|
*
|
|
* @param array Caldav and event properties to update. See caldav_sync::get_updates().
|
|
* @return array List of event ids.
|
|
*/
|
|
private function _perform_updates($updates)
|
|
{
|
|
$event_ids = array();
|
|
|
|
$num_created = 0;
|
|
$num_updated = 0;
|
|
|
|
foreach($updates as $update)
|
|
{
|
|
// local event -> update event
|
|
if(isset($update["local_event"]))
|
|
{
|
|
// Overwrite local event attributes with new event, url + etag.
|
|
$event = array_merge((array)$update["local_event"], $update["remote_event"], array(
|
|
"caldav_url" => $update["url"],
|
|
"caldav_tag" => $update["etag"]));
|
|
|
|
// let edit_event() do all the magic
|
|
if($this->_db_edit_event($event))
|
|
{
|
|
$event_id = $event["id"];
|
|
array_push($event_ids, $event_id);
|
|
$num_updated ++;
|
|
}
|
|
else
|
|
{
|
|
self::debug_log("Could not perform event update: ".print_r($update, true));
|
|
}
|
|
}
|
|
|
|
// no local event -> create event
|
|
else
|
|
{
|
|
$event = array_merge($update["remote_event"], array(
|
|
"caldav_url" => $update["url"],
|
|
"caldav_tag" => $update["etag"]));
|
|
|
|
$event_id = $this->new_event($event);
|
|
if($event_id)
|
|
{
|
|
self::debug_log("Created event \"$event_id\".");
|
|
array_push($event_ids, $event_id);
|
|
$num_created ++;
|
|
}
|
|
else
|
|
{
|
|
self::debug_log("Could not perform event creation: ".print_r($update, true));
|
|
}
|
|
}
|
|
}
|
|
|
|
self::debug_log("Created $num_created new events, updated $num_updated event.");
|
|
return $event_ids;
|
|
}
|
|
|
|
/**
|
|
* Determines whether the given calendar is in sync regarding
|
|
* calendar's ctag and the configured sync period.
|
|
*
|
|
* @param int Calender id.
|
|
* @return boolean True if calendar is in sync, true otherwise.
|
|
*/
|
|
private function _is_synced($cal_id)
|
|
{
|
|
// Atomic sql: Check for exceeded sync period and update last_change.
|
|
$query = $this->rc->db->query(
|
|
"UPDATE ".$this->db_calendars." ".
|
|
"SET caldav_last_change = NOW() WHERE calendar_id = ? AND ".
|
|
$this->_unix_timestamp('caldav_last_change') ." + ? <= ".$this->_unix_timestamp('NOW()'),
|
|
$cal_id, $this->sync_period);
|
|
|
|
if($query->rowCount() > 0)
|
|
{
|
|
$is_synced = $this->sync_clients[$cal_id]->is_synced();
|
|
self::debug_log("Calendar \"$cal_id\" ".($is_synced ? "is in sync" : "needs update").".");
|
|
return $is_synced;
|
|
}
|
|
else
|
|
{
|
|
self::debug_log("Sync period active: Assuming calendar \"$cal_id\" to be in sync.");
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns db-specific timestamp queries for epoch format
|
|
*
|
|
* @param str column name or valid timestamp (e.g. NOW())
|
|
* @return str db-specific timestamp query for epoch format
|
|
*/
|
|
private function _unix_timestamp($field)
|
|
{
|
|
switch ($this->rc->db->db_provider) {
|
|
case 'postgres':
|
|
return "EXTRACT (EPOCH FROM $field)";
|
|
default:
|
|
return "UNIX_TIMESTAMP($field)";
|
|
}
|
|
}
|
|
|
|
private function _decrypt_pass($pass) {
|
|
$p = base64_decode($pass);
|
|
$e = new Encryption();
|
|
return $e->decrypt($p);
|
|
}
|
|
|
|
private function _encrypt_pass($pass) {
|
|
$e = new Encryption();
|
|
$p = $e->encrypt($pass);
|
|
return base64_encode($p);
|
|
}
|
|
}
|