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tasklist.php
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tasklist.php
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<?php
/**
* Tasks plugin for Roundcube webmail
*
* @version @package_version@
* @author Thomas Bruederli <bruederli@kolabsys.com>
*
* Copyright (C) 2012, Kolab Systems AG <contact@kolabsys.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
class tasklist extends rcube_plugin
{
const FILTER_MASK_TODAY = 1;
const FILTER_MASK_TOMORROW = 2;
const FILTER_MASK_WEEK = 4;
const FILTER_MASK_LATER = 8;
const FILTER_MASK_NODATE = 16;
const FILTER_MASK_OVERDUE = 32;
const FILTER_MASK_FLAGGED = 64;
const FILTER_MASK_COMPLETE = 128;
const FILTER_MASK_ASSIGNED = 256;
const FILTER_MASK_MYTASKS = 512;
const SESSION_KEY = 'tasklist_temp';
public static $filter_masks = array(
'today' => self::FILTER_MASK_TODAY,
'tomorrow' => self::FILTER_MASK_TOMORROW,
'week' => self::FILTER_MASK_WEEK,
'later' => self::FILTER_MASK_LATER,
'nodate' => self::FILTER_MASK_NODATE,
'overdue' => self::FILTER_MASK_OVERDUE,
'flagged' => self::FILTER_MASK_FLAGGED,
'complete' => self::FILTER_MASK_COMPLETE,
'assigned' => self::FILTER_MASK_ASSIGNED,
'mytasks' => self::FILTER_MASK_MYTASKS,
);
public $task = '?(?!login|logout).*';
public $allowed_prefs = array('tasklist_sort_col','tasklist_sort_order');
public $rc;
public $lib;
public $timezone;
public $ui;
public $home; // declare public to be used in other classes
// These are handled by __get()
// public $driver;
// public $itip;
// public $ical;
private $collapsed_tasks = array();
private $message_tasks = array();
/**
* Plugin initialization.
*/
function init()
{
$this->require_plugin('libcalendaring');
$this->require_plugin('libkolab');
$this->rc = rcube::get_instance();
$this->lib = libcalendaring::get_instance();
$this->register_task('tasks', 'tasklist');
// load plugin configuration
$this->load_config();
$this->timezone = $this->lib->timezone;
// proceed initialization in startup hook
$this->add_hook('startup', array($this, 'startup'));
$this->add_hook('user_delete', array($this, 'user_delete'));
}
/**
* Startup hook
*/
public function startup($args)
{
// the tasks module can be enabled/disabled by the kolab_auth plugin
if ($this->rc->config->get('tasklist_disabled', false) || !$this->rc->config->get('tasklist_enabled', true))
return;
// load localizations
$this->add_texts('localization/', $args['task'] == 'tasks' && (!$args['action'] || $args['action'] == 'print'));
$this->rc->load_language($_SESSION['language'], array('tasks.tasks' => $this->gettext('navtitle'))); // add label for task title
if ($args['task'] == 'tasks' && $args['action'] != 'save-pref') {
$this->load_driver();
// register calendar actions
$this->register_action('index', array($this, 'tasklist_view'));
$this->register_action('task', array($this, 'task_action'));
$this->register_action('tasklist', array($this, 'tasklist_action'));
$this->register_action('counts', array($this, 'fetch_counts'));
$this->register_action('fetch', array($this, 'fetch_tasks'));
$this->register_action('print', array($this, 'print_tasks'));
$this->register_action('dialog-ui', array($this, 'mail_message2task'));
$this->register_action('get-attachment', array($this, 'attachment_get'));
$this->register_action('upload', array($this, 'attachment_upload'));
$this->register_action('import', array($this, 'import_tasks'));
$this->register_action('export', array($this, 'export_tasks'));
$this->register_action('mailimportitip', array($this, 'mail_import_itip'));
$this->register_action('mailimportattach', array($this, 'mail_import_attachment'));
$this->register_action('itip-status', array($this, 'task_itip_status'));
$this->register_action('itip-remove', array($this, 'task_itip_remove'));
$this->register_action('itip-decline-reply', array($this, 'mail_itip_decline_reply'));
$this->register_action('itip-delegate', array($this, 'mail_itip_delegate'));
$this->add_hook('refresh', array($this, 'refresh'));
$this->collapsed_tasks = array_filter(explode(',', $this->rc->config->get('tasklist_collapsed_tasks', '')));
}
else if ($args['task'] == 'mail') {
if ($args['action'] == 'show' || $args['action'] == 'preview') {
if ($this->rc->config->get('tasklist_mail_embed', true)) {
$this->add_hook('message_load', array($this, 'mail_message_load'));
}
$this->add_hook('template_object_messagebody', array($this, 'mail_messagebody_html'));
}
// add 'Create event' item to message menu
if ($this->api->output->type == 'html' && $_GET['_rel'] != 'task') {
$this->api->add_content(html::tag('li', array('role' => 'menuitem'),
$this->api->output->button(array(
'command' => 'tasklist-create-from-mail',
'label' => 'tasklist.createfrommail',
'type' => 'link',
'classact' => 'icon taskaddlink active',
'class' => 'icon taskaddlink disabled',
'innerclass' => 'icon taskadd',
))),
'messagemenu');
$this->api->output->add_label('tasklist.createfrommail');
}
}
if (!$this->rc->output->ajax_call && !$this->rc->output->env['framed']) {
$this->load_ui();
$this->ui->init();
}
// add hooks for alarms handling
$this->add_hook('pending_alarms', array($this, 'pending_alarms'));
$this->add_hook('dismiss_alarms', array($this, 'dismiss_alarms'));
}
/**
*
*/
private function load_ui()
{
if (!$this->ui) {
require_once($this->home . '/tasklist_ui.php');
$this->ui = new tasklist_ui($this);
}
}
/**
* Helper method to load the backend driver according to local config
*/
private function load_driver()
{
if (is_object($this->driver)) {
return;
}
$driver_name = $this->rc->config->get('tasklist_driver', 'database');
$driver_class = 'tasklist_' . $driver_name . '_driver';
require_once($this->home . '/drivers/tasklist_driver.php');
require_once($this->home . '/drivers/' . $driver_name . '/' . $driver_class . '.php');
$this->driver = new $driver_class($this);
$this->rc->output->set_env('tasklist_driver', $driver_name);
}
/**
* Dispatcher for task-related actions initiated by the client
*/
public function task_action()
{
$filter = intval(rcube_utils::get_input_value('filter', rcube_utils::INPUT_GPC));
$action = rcube_utils::get_input_value('action', rcube_utils::INPUT_GPC);
$rec = rcube_utils::get_input_value('t', rcube_utils::INPUT_POST, true);
$oldrec = $rec;
$success = $refresh = $got_msg = false;
// force notify if hidden + active
$itip_send_option = (int)$this->rc->config->get('calendar_itip_send_option', 3);
if ($itip_send_option === 1 && empty($rec['_reportpartstat']))
$rec['_notify'] = 1;
switch ($action) {
case 'new':
$oldrec = null;
$rec = $this->prepare_task($rec);
$rec['uid'] = $this->generate_uid();
$temp_id = $rec['tempid'];
if ($success = $this->driver->create_task($rec)) {
$refresh = $this->driver->get_task($rec);
if ($temp_id) $refresh['tempid'] = $temp_id;
$this->cleanup_task($rec);
}
break;
case 'complete':
$complete = intval(rcube_utils::get_input_value('complete', rcube_utils::INPUT_POST));
if (!($rec = $this->driver->get_task($rec))) {
break;
}
$oldrec = $rec;
$rec['status'] = $complete ? 'COMPLETED' : ($rec['complete'] > 0 ? 'IN-PROCESS' : 'NEEDS-ACTION');
// sent itip notifications if enabled (no user interaction here)
if (($itip_send_option & 1)) {
if ($this->is_attendee($rec)) {
$rec['_reportpartstat'] = $rec['status'];
}
else if ($this->is_organizer($rec)) {
$rec['_notify'] = 1;
}
}
case 'edit':
$oldrec = $this->driver->get_task($rec);
$rec = $this->prepare_task($rec);
$clone = $this->handle_recurrence($rec, $this->driver->get_task($rec));
if ($success = $this->driver->edit_task($rec)) {
$new_task = $this->driver->get_task($rec);
$new_task['tempid'] = $rec['id'];
$refresh[] = $new_task;
$this->cleanup_task($rec);
// add clone from recurring task
if ($clone && $this->driver->create_task($clone)) {
$new_clone = $this->driver->get_task($clone);
$new_clone['tempid'] = $clone['id'];
$refresh[] = $new_clone;
$this->driver->clear_alarms($rec['id']);
}
// move all childs if list assignment was changed
if (!empty($rec['_fromlist']) && !empty($rec['list']) && $rec['_fromlist'] != $rec['list']) {
foreach ($this->driver->get_childs(array('id' => $rec['id'], 'list' => $rec['_fromlist']), true) as $cid) {
$child = array('id' => $cid, 'list' => $rec['list'], '_fromlist' => $rec['_fromlist']);
if ($this->driver->move_task($child)) {
$r = $this->driver->get_task($child);
if ((bool)($filter & self::FILTER_MASK_COMPLETE) == $this->driver->is_complete($r)) {
$r['tempid'] = $cid;
$refresh[] = $r;
}
}
}
}
}
break;
case 'move':
foreach ((array)$rec['id'] as $id) {
$r = $rec;
$r['id'] = $id;
if ($this->driver->move_task($r)) {
$new_task = $this->driver->get_task($r);
$new_task['tempid'] = $id;
$refresh[] = $new_task;
$success = true;
// move all childs, too
foreach ($this->driver->get_childs(array('id' => $id, 'list' => $rec['_fromlist']), true) as $cid) {
$child = $rec;
$child['id'] = $cid;
if ($this->driver->move_task($child)) {
$r = $this->driver->get_task($child);
if ((bool)($filter & self::FILTER_MASK_COMPLETE) == $this->driver->is_complete($r)) {
$r['tempid'] = $cid;
$refresh[] = $r;
}
}
}
}
}
break;
case 'delete':
$mode = intval(rcube_utils::get_input_value('mode', rcube_utils::INPUT_POST));
$oldrec = $this->driver->get_task($rec);
if ($success = $this->driver->delete_task($rec, false)) {
// delete/modify all childs
foreach ($this->driver->get_childs($rec, $mode) as $cid) {
$child = array('id' => $cid, 'list' => $rec['list']);
if ($mode == 1) { // delete all childs
if ($this->driver->delete_task($child, false)) {
if ($this->driver->undelete)
$_SESSION['tasklist_undelete'][$rec['id']][] = $cid;
}
else
$success = false;
}
else {
$child['parent_id'] = strval($oldrec['parent_id']);
$this->driver->edit_task($child);
}
}
// update parent task to adjust list of children
if (!empty($oldrec['parent_id'])) {
$parent = array('id' => $oldrec['parent_id'], 'list' => $rec['list']);
if ($parent = $this->driver->get_task()) {
$refresh[] = $parent;
}
}
}
if (!$success)
$this->rc->output->command('plugin.reload_data');
break;
case 'undelete':
if ($success = $this->driver->undelete_task($rec)) {
$refresh[] = $this->driver->get_task($rec);
foreach ((array)$_SESSION['tasklist_undelete'][$rec['id']] as $cid) {
if ($this->driver->undelete_task($rec)) {
$refresh[] = $this->driver->get_task($rec);
}
}
}
break;
case 'collapse':
foreach (explode(',', $rec['id']) as $rec_id) {
if (intval(rcube_utils::get_input_value('collapsed', rcube_utils::INPUT_GPC))) {
$this->collapsed_tasks[] = $rec_id;
}
else {
$i = array_search($rec_id, $this->collapsed_tasks);
if ($i !== false)
unset($this->collapsed_tasks[$i]);
}
}
$this->rc->user->save_prefs(array('tasklist_collapsed_tasks' => join(',', array_unique($this->collapsed_tasks))));
return; // avoid further actions
case 'rsvp':
$status = rcube_utils::get_input_value('status', rcube_utils::INPUT_GPC);
$noreply = intval(rcube_utils::get_input_value('noreply', rcube_utils::INPUT_GPC)) || $status == 'needs-action';
$task = $this->driver->get_task($rec);
$task['attendees'] = $rec['attendees'];
$task['_type'] = 'task';
// send invitation to delegatee + add it as attendee
if ($status == 'delegated' && $rec['to']) {
$itip = $this->load_itip();
if ($itip->delegate_to($task, $rec['to'], (bool)$rec['rsvp'])) {
$this->rc->output->show_message('tasklist.itipsendsuccess', 'confirmation');
$refresh[] = $task;
$noreply = false;
}
}
$rec = $task;
if ($success = $this->driver->edit_task($rec)) {
if (!$noreply) {
// let the reply clause further down send the iTip message
$rec['_reportpartstat'] = $status;
}
}
break;
case 'changelog':
$data = $this->driver->get_task_changelog($rec);
if (is_array($data) && !empty($data)) {
$lib = $this->lib;
$dtformat = $this->rc->config->get('date_format') . ' ' . $this->rc->config->get('time_format');
array_walk($data, function(&$change) use ($lib, $dtformat) {
if ($change['date']) {
$dt = $lib->adjust_timezone($change['date']);
if ($dt instanceof DateTime) {
$change['date'] = $this->rc->format_date($dt, $dtformat, false);
}
}
});
$this->rc->output->command('plugin.task_render_changelog', $data);
}
else {
$this->rc->output->command('plugin.task_render_changelog', false);
}
$got_msg = true;
break;
case 'diff':
$data = $this->driver->get_task_diff($rec, $rec['rev1'], $rec['rev2']);
if (is_array($data)) {
// convert some properties, similar to self::_client_event()
$lib = $this->lib;
$date_format = $this->rc->config->get('date_format', 'Y-m-d');
$time_format = $this->rc->config->get('time_format', 'H:i');
array_walk($data['changes'], function(&$change, $i) use ($lib, $date_format, $time_format) {
// convert date cols
if (in_array($change['property'], array('date','start','created','changed'))) {
if (!empty($change['old'])) {
$dtformat = strlen($change['old']) == 10 ? $date_format : $date_format . ' ' . $time_format;
$change['old_'] = $lib->adjust_timezone($change['old'], strlen($change['old']) == 10)->format($dtformat);
}
if (!empty($change['new'])) {
$dtformat = strlen($change['new']) == 10 ? $date_format : $date_format . ' ' . $time_format;
$change['new_'] = $lib->adjust_timezone($change['new'], strlen($change['new']) == 10)->format($dtformat);
}
}
// create textual representation for alarms and recurrence
if ($change['property'] == 'alarms') {
if (is_array($change['old']))
$change['old_'] = libcalendaring::alarm_text($change['old']);
if (is_array($change['new']))
$change['new_'] = libcalendaring::alarm_text(array_merge((array)$change['old'], $change['new']));
}
if ($change['property'] == 'recurrence') {
if (is_array($change['old']))
$change['old_'] = $lib->recurrence_text($change['old']);
if (is_array($change['new']))
$change['new_'] = $lib->recurrence_text(array_merge((array)$change['old'], $change['new']));
}
if ($change['property'] == 'complete') {
$change['old_'] = intval($change['old']) . '%';
$change['new_'] = intval($change['new']) . '%';
}
if ($change['property'] == 'attachments') {
if (is_array($change['old']))
$change['old']['classname'] = rcube_utils::file2class($change['old']['mimetype'], $change['old']['name']);
if (is_array($change['new'])) {
$change['new'] = array_merge((array)$change['old'], $change['new']);
$change['new']['classname'] = rcube_utils::file2class($change['new']['mimetype'], $change['new']['name']);
}
}
// resolve parent_id to the refered task title for display
if ($change['property'] == 'parent_id') {
$change['property'] = 'parent-title';
if (!empty($change['old']) && ($old_parent = $this->driver->get_task(array('id' => $change['old'], 'list' => $rec['list'])))) {
$change['old_'] = $old_parent['title'];
}
if (!empty($change['new']) && ($new_parent = $this->driver->get_task(array('id' => $change['new'], 'list' => $rec['list'])))) {
$change['new_'] = $new_parent['title'];
}
}
// compute a nice diff of description texts
if ($change['property'] == 'description') {
$change['diff_'] = libkolab::html_diff($change['old'], $change['new']);
}
});
$this->rc->output->command('plugin.task_show_diff', $data);
}
else {
$this->rc->output->command('display_message', $this->gettext('objectdiffnotavailable'), 'error');
}
$got_msg = true;
break;
case 'show':
if ($rec = $this->driver->get_task_revison($rec, $rec['rev'])) {
$this->encode_task($rec);
$rec['readonly'] = 1;
$this->rc->output->command('plugin.task_show_revision', $rec);
}
else {
$this->rc->output->command('display_message', $this->gettext('objectnotfound'), 'error');
}
$got_msg = true;
break;
case 'restore':
if ($success = $this->driver->restore_task_revision($rec, $rec['rev'])) {
$refresh = $this->driver->get_task($rec);
$this->rc->output->command('display_message', $this->gettext(array('name' => 'objectrestoresuccess', 'vars' => array('rev' => $rec['rev']))), 'confirmation');
$this->rc->output->command('plugin.close_history_dialog');
}
else {
$this->rc->output->command('display_message', $this->gettext('objectrestoreerror'), 'error');
}
$got_msg = true;
break;
}
if ($success) {
$this->rc->output->show_message('successfullysaved', 'confirmation');
$this->update_counts($oldrec, $refresh);
}
else if (!$got_msg) {
$this->rc->output->show_message('tasklist.errorsaving', 'error');
}
// send out notifications
if ($success && $rec['_notify'] && ($rec['attendees'] || $oldrec['attendees'])) {
// make sure we have the complete record
$task = $action == 'delete' ? $oldrec : $this->driver->get_task($rec);
// only notify if data really changed (TODO: do diff check on client already)
if (!$oldrec || $action == 'delete' || self::task_diff($task, $oldrec)) {
$sent = $this->notify_attendees($task, $oldrec, $action, $rec['_comment']);
if ($sent > 0)
$this->rc->output->show_message('tasklist.itipsendsuccess', 'confirmation');
else if ($sent < 0)
$this->rc->output->show_message('tasklist.errornotifying', 'error');
}
}
if ($success && $rec['_reportpartstat'] && $rec['_reportpartstat'] != 'NEEDS-ACTION') {
// get the full record after update
if (!$task) {
$task = $this->driver->get_task($rec);
}
// send iTip REPLY with the updated partstat
if ($task['organizer'] && ($idx = $this->is_attendee($task)) !== false) {
$sender = $task['attendees'][$idx];
$status = strtolower($sender['status']);
if (!empty($_POST['comment']))
$task['comment'] = rcube_utils::get_input_value('comment', rcube_utils::INPUT_POST);
$itip = $this->load_itip();
$itip->set_sender_email($sender['email']);
if ($itip->send_itip_message($this->to_libcal($task), 'REPLY', $task['organizer'], 'itipsubject' . $status, 'itipmailbody' . $status))
$this->rc->output->command('display_message', $this->gettext(array('name' => 'sentresponseto', 'vars' => array('mailto' => $task['organizer']['name'] ?: $task['organizer']['email']))), 'confirmation');
else
$this->rc->output->command('display_message', $this->gettext('itipresponseerror'), 'error');
}
}
// unlock client
$this->rc->output->command('plugin.unlock_saving', $success);
if ($refresh) {
if ($refresh['id']) {
$this->encode_task($refresh);
}
else if (is_array($refresh)) {
foreach ($refresh as $i => $r)
$this->encode_task($refresh[$i]);
}
$this->rc->output->command('plugin.update_task', $refresh);
}
else if ($success && ($action == 'delete' || $action == 'undelete')) {
$this->rc->output->command('plugin.refresh_tagcloud');
}
}
/**
* Load iTIP functions
*/
private function load_itip()
{
if (!$this->itip) {
require_once realpath(__DIR__ . '/../libcalendaring/lib/libcalendaring_itip.php');
$this->itip = new libcalendaring_itip($this, 'tasklist');
$this->itip->set_rsvp_actions(array('accepted','declined','delegated'));
$this->itip->set_rsvp_status(array('accepted','tentative','declined','delegated','in-process','completed'));
}
return $this->itip;
}
/**
* repares new/edited task properties before save
*/
private function prepare_task($rec)
{
// try to be smart and extract date from raw input
if ($rec['raw']) {
foreach (array('today','tomorrow','sunday','monday','tuesday','wednesday','thursday','friday','saturday','sun','mon','tue','wed','thu','fri','sat') as $word) {
$locwords[] = '/^' . preg_quote(mb_strtolower($this->gettext($word))) . '\b/i';
$normwords[] = $word;
$datewords[] = $word;
}
foreach (array('jan','feb','mar','apr','may','jun','jul','aug','sep','oct','now','dec') as $month) {
$locwords[] = '/(' . preg_quote(mb_strtolower($this->gettext('long'.$month))) . '|' . preg_quote(mb_strtolower($this->gettext($month))) . ')\b/i';
$normwords[] = $month;
$datewords[] = $month;
}
foreach (array('on','this','next','at') as $word) {
$fillwords[] = preg_quote(mb_strtolower($this->gettext($word)));
$fillwords[] = $word;
}
$raw = trim($rec['raw']);
$date_str = '';
// translate localized keywords
$raw = preg_replace('/^(' . join('|', $fillwords) . ')\s*/i', '', $raw);
$raw = preg_replace($locwords, $normwords, $raw);
// find date pattern
$date_pattern = '!^(\d+[./-]\s*)?((?:\d+[./-])|' . join('|', $datewords) . ')\.?(\s+\d{4})?[:;,]?\s+!i';
if (preg_match($date_pattern, $raw, $m)) {
$date_str .= $m[1] . $m[2] . $m[3];
$raw = preg_replace(array($date_pattern, '/^(' . join('|', $fillwords) . ')\s*/i'), '', $raw);
// add year to date string
if ($m[1] && !$m[3])
$date_str .= date('Y');
}
// find time pattern
$time_pattern = '/^(\d+([:.]\d+)?(\s*[hapm.]+)?),?\s+/i';
if (preg_match($time_pattern, $raw, $m)) {
$has_time = true;
$date_str .= ($date_str ? ' ' : 'today ') . $m[1];
$raw = preg_replace($time_pattern, '', $raw);
}
// yes, raw input matched a (valid) date
if (strlen($date_str) && strtotime($date_str) && ($date = new DateTime($date_str, $this->timezone))) {
$rec['date'] = $date->format('Y-m-d');
if ($has_time)
$rec['time'] = $date->format('H:i');
$rec['title'] = $raw;
}
else
$rec['title'] = $rec['raw'];
}
// normalize input from client
if (isset($rec['complete'])) {
$rec['complete'] = floatval($rec['complete']);
if ($rec['complete'] > 1)
$rec['complete'] /= 100;
}
if (isset($rec['flagged']))
$rec['flagged'] = intval($rec['flagged']);
// fix for garbage input
if ($rec['description'] == 'null')
$rec['description'] = '';
foreach ($rec as $key => $val) {
if ($val === 'null')
$rec[$key] = null;
}
if (!empty($rec['date'])) {
$this->normalize_dates($rec, 'date', 'time');
}
if (!empty($rec['startdate'])) {
$this->normalize_dates($rec, 'startdate', 'starttime');
}
// convert tags to array, filter out empty entries
if (isset($rec['tags']) && !is_array($rec['tags'])) {
$rec['tags'] = array_filter((array)$rec['tags']);
}
// convert the submitted alarm values
if ($rec['valarms']) {
$valarms = array();
foreach (libcalendaring::from_client_alarms($rec['valarms']) as $alarm) {
// alarms can only work with a date (either task start, due or absolute alarm date)
if (is_a($alarm['trigger'], 'DateTime') || $rec['date'] || $rec['startdate'])
$valarms[] = $alarm;
}
$rec['valarms'] = $valarms;
}
// convert the submitted recurrence settings
if (is_array($rec['recurrence'])) {
$refdate = null;
if (!empty($rec['date'])) {
$refdate = new DateTime($rec['date'] . ' ' . $rec['time'], $this->timezone);
}
else if (!empty($rec['startdate'])) {
$refdate = new DateTime($rec['startdate'] . ' ' . $rec['starttime'], $this->timezone);
}
if ($refdate) {
$rec['recurrence'] = $this->lib->from_client_recurrence($rec['recurrence'], $refdate);
// translate count into an absolute end date.
// why? because when shifting completed tasks to the next recurrence,
// the initial start date to count from gets lost.
if ($rec['recurrence']['COUNT']) {
$engine = libcalendaring::get_recurrence();
$engine->init($rec['recurrence'], $refdate);
if ($until = $engine->end()) {
$rec['recurrence']['UNTIL'] = $until;
unset($rec['recurrence']['COUNT']);
}
}
}
else { // recurrence requires a reference date
$rec['recurrence'] = '';
}
}
$attachments = array();
$taskid = $rec['id'];
if (is_array($_SESSION[self::SESSION_KEY]) && $_SESSION[self::SESSION_KEY]['id'] == $taskid) {
if (!empty($_SESSION[self::SESSION_KEY]['attachments'])) {
foreach ($_SESSION[self::SESSION_KEY]['attachments'] as $id => $attachment) {
if (is_array($rec['attachments']) && in_array($id, $rec['attachments'])) {
$attachments[$id] = $this->rc->plugins->exec_hook('attachment_get', $attachment);
unset($attachments[$id]['abort'], $attachments[$id]['group']);
}
}
}
}
$rec['attachments'] = $attachments;
// convert link references into simple URIs
if (array_key_exists('links', $rec)) {
$rec['links'] = array_map(function($link) { return is_array($link) ? $link['uri'] : strval($link); }, (array)$rec['links']);
}
// convert invalid data
if (isset($rec['attendees']) && !is_array($rec['attendees']))
$rec['attendees'] = array();
foreach ((array)$rec['attendees'] as $i => $attendee) {
if (is_string($attendee['rsvp'])) {
$rec['attendees'][$i]['rsvp'] = $attendee['rsvp'] == 'true' || $attendee['rsvp'] == '1';
}
}
// copy the task status to my attendee partstat
if (!empty($rec['_reportpartstat'])) {
if (($idx = $this->is_attendee($rec)) !== false) {
if (!($rec['_reportpartstat'] == 'NEEDS-ACTION' && $rec['attendees'][$idx]['status'] == 'ACCEPTED'))
$rec['attendees'][$idx]['status'] = $rec['_reportpartstat'];
else
unset($rec['_reportpartstat']);
}
}
// set organizer from identity selector
if ((isset($rec['_identity']) || (!empty($rec['attendees']) && empty($rec['organizer']))) &&
($identity = $this->rc->user->get_identity($rec['_identity']))) {
$rec['organizer'] = array('name' => $identity['name'], 'email' => $identity['email']);
}
if (is_numeric($rec['id']) && $rec['id'] < 0)
unset($rec['id']);
return $rec;
}
/**
* Utility method to convert a tasks date/time values into a normalized format
*/
private function normalize_dates(&$rec, $date_key, $time_key)
{
try {
// parse date from user format (#2801)
$date_format = $this->rc->config->get(empty($rec[$time_key]) ? 'date_format' : 'date_long', 'Y-m-d');
$date = DateTime::createFromFormat($date_format, trim($rec[$date_key] . ' ' . $rec[$time_key]), $this->timezone);
// fall back to default strtotime logic
if (empty($date)) {
$date = new DateTime($rec[$date_key] . ' ' . $rec[$time_key], $this->timezone);
}
$rec[$date_key] = $date->format('Y-m-d');
if (!empty($rec[$time_key]))
$rec[$time_key] = $date->format('H:i');
return true;
}
catch (Exception $e) {
$rec[$date_key] = $rec[$time_key] = null;
}
return false;
}
/**
* Releases some resources after successful save
*/
private function cleanup_task(&$rec)
{
// remove temp. attachment files
if (!empty($_SESSION[self::SESSION_KEY]) && ($taskid = $_SESSION[self::SESSION_KEY]['id'])) {
$this->rc->plugins->exec_hook('attachments_cleanup', array('group' => $taskid));
$this->rc->session->remove(self::SESSION_KEY);
}
}
/**
* When flagging a recurring task as complete,
* clone it and shift dates to the next occurrence
*/
private function handle_recurrence(&$rec, $old)
{
$clone = null;
if ($this->driver->is_complete($rec) && $old && !$this->driver->is_complete($old) && is_array($rec['recurrence'])) {
$engine = libcalendaring::get_recurrence();
$rrule = $rec['recurrence'];
$updates = array();
// compute the next occurrence of date attributes
foreach (array('date'=>'time', 'startdate'=>'starttime') as $date_key => $time_key) {
if (empty($rec[$date_key]))
continue;
$date = new DateTime($rec[$date_key] . ' ' . $rec[$time_key], $this->timezone);
$engine->init($rrule, $date);
if ($next = $engine->next()) {
$updates[$date_key] = $next->format('Y-m-d');
if (!empty($rec[$time_key]))
$updates[$time_key] = $next->format('H:i');
}
}
// shift absolute alarm dates
if (!empty($updates) && is_array($rec['valarms'])) {
$updates['valarms'] = array();
unset($rrule['UNTIL'], $rrule['COUNT']); // make recurrence rule unlimited
foreach ($rec['valarms'] as $i => $alarm) {
if ($alarm['trigger'] instanceof DateTime) {
$engine->init($rrule, $alarm['trigger']);
if ($next = $engine->next()) {
$alarm['trigger'] = $next;
}
}
$updates['valarms'][$i] = $alarm;
}
}
if (!empty($updates)) {
// clone task to save a completed copy
$clone = $rec;
$clone['uid'] = $this->generate_uid();
$clone['parent_id'] = $rec['id'];
unset($clone['id'], $clone['recurrence'], $clone['attachments']);
// update the task but unset completed flag
$rec = array_merge($rec, $updates);
$rec['complete'] = $old['complete'];
$rec['status'] = $old['status'];
}
}
return $clone;
}
/**
* Send out an invitation/notification to all task attendees
*/
private function notify_attendees($task, $old, $action = 'edit', $comment = null)
{
if ($action == 'delete' || ($task['status'] == 'CANCELLED' && $old['status'] != $task['status'])) {
$task['cancelled'] = true;
$is_cancelled = true;
}
$itip = $this->load_itip();
$emails = $this->lib->get_user_emails();
$itip_notify = (int)$this->rc->config->get('calendar_itip_send_option', 3);
// add comment to the iTip attachment
$task['comment'] = $comment;
// needed to generate VTODO instead of VEVENT entry
$task['_type'] = 'task';
// compose multipart message using PEAR:Mail_Mime
$method = $action == 'delete' ? 'CANCEL' : 'REQUEST';
$object = $this->to_libcal($task);
$message = $itip->compose_itip_message($object, $method, $task['sequence'] > $old['sequence']);
// list existing attendees from the $old task
$old_attendees = array();
foreach ((array)$old['attendees'] as $attendee) {
$old_attendees[] = $attendee['email'];
}
// send to every attendee
$sent = 0; $current = array();
foreach ((array)$task['attendees'] as $attendee) {
$current[] = strtolower($attendee['email']);
// skip myself for obvious reasons
if (!$attendee['email'] || in_array(strtolower($attendee['email']), $emails)) {
continue;
}
// skip if notification is disabled for this attendee
if ($attendee['noreply'] && $itip_notify & 2) {
continue;
}
// skip if this attendee has delegated and set RSVP=FALSE
if ($attendee['status'] == 'DELEGATED' && $attendee['rsvp'] === false) {
continue;
}
// which template to use for mail text
$is_new = !in_array($attendee['email'], $old_attendees);
$is_rsvp = $is_new || $task['sequence'] > $old['sequence'];
$bodytext = $is_cancelled ? 'itipcancelmailbody' : ($is_new ? 'invitationmailbody' : 'itipupdatemailbody');
$subject = $is_cancelled ? 'itipcancelsubject' : ($is_new ? 'invitationsubject' : ($task['title'] ? 'itipupdatesubject' : 'itipupdatesubjectempty'));
// finally send the message
if ($itip->send_itip_message($object, $method, $attendee, $subject, $bodytext, $message, $is_rsvp))
$sent++;
else
$sent = -100;
}
// send CANCEL message to removed attendees
foreach ((array)$old['attendees'] as $attendee) {
if (!$attendee['email'] || in_array(strtolower($attendee['email']), $current)) {
continue;
}
$vtodo = $this->to_libcal($old);
$vtodo['cancelled'] = $is_cancelled;
$vtodo['attendees'] = array($attendee);
$vtodo['comment'] = $comment;
if ($itip->send_itip_message($vtodo, 'CANCEL', $attendee, 'itipcancelsubject', 'itipcancelmailbody'))
$sent++;
else
$sent = -100;
}
return $sent;
}
/**
* Compare two task objects and return differing properties
*
* @param array Event A
* @param array Event B
* @return array List of differing task properties
*/
public static function task_diff($a, $b)
{
$diff = array();
$ignore = array('changed' => 1, 'attachments' => 1);
foreach (array_unique(array_merge(array_keys($a), array_keys($b))) as $key) {
if (!$ignore[$key] && $a[$key] != $b[$key])
$diff[] = $key;
}
// only compare number of attachments
if (count($a['attachments']) != count($b['attachments']))
$diff[] = 'attachments';
return $diff;
}
/**
* Dispatcher for tasklist actions initiated by the client
*/
public function tasklist_action()
{
$action = rcube_utils::get_input_value('action', rcube_utils::INPUT_GPC);
$list = rcube_utils::get_input_value('l', rcube_utils::INPUT_GPC, true);
$success = false;
unset($list['_token']);
if (isset($list['showalarms'])) {
$list['showalarms'] = intval($list['showalarms']);
}
switch ($action) {
case 'form-new':
case 'form-edit':
$this->load_ui();
echo $this->ui->tasklist_editform($action, $list);
exit;
case 'new':
$list += array('showalarms' => true, 'active' => true, 'editable' => true);