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diff --git a/plugins/libcalendaring/lib/libcalendaring_itip.php b/plugins/libcalendaring/lib/libcalendaring_itip.php
index abf244df..e2f737dd 100644
--- a/plugins/libcalendaring/lib/libcalendaring_itip.php
+++ b/plugins/libcalendaring/lib/libcalendaring_itip.php
@@ -1,1059 +1,1059 @@
<?php
/**
* iTIP functions for the calendar-based Roudncube plugins
*
* Class providing functionality to manage iTIP invitations
*
* @author Thomas Bruederli <bruederli@kolabsys.com>
*
* Copyright (C) 2011-2014, 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 libcalendaring_itip
{
protected $rc;
protected $lib;
protected $plugin;
protected $sender;
protected $domain;
protected $itip_send = false;
protected $rsvp_actions = array('accepted','tentative','declined','delegated');
protected $rsvp_status = array('accepted','tentative','declined','delegated');
function __construct($plugin, $domain = 'libcalendaring')
{
$this->plugin = $plugin;
$this->rc = rcube::get_instance();
$this->lib = libcalendaring::get_instance();
$this->domain = $domain;
$hook = $this->rc->plugins->exec_hook('calendar_load_itip',
array('identity' => $this->rc->user->list_emails(true)));
$this->sender = $hook['identity'];
$this->plugin->add_hook('smtp_connect', array($this, 'smtp_connect_hook'));
}
public function set_sender_email($email)
{
if (!empty($email))
$this->sender['email'] = $email;
}
public function set_rsvp_actions($actions)
{
$this->rsvp_actions = (array)$actions;
$this->rsvp_status = array_merge($this->rsvp_actions, array('delegated'));
}
public function set_rsvp_status($status)
{
$this->rsvp_status = $status;
}
/**
* Wrapper for rcube_plugin::gettext()
* Checking for a label in different domains
*
* @see rcube::gettext()
*/
public function gettext($p)
{
$label = is_array($p) ? $p['name'] : $p;
$domain = $this->domain;
if (!$this->rc->text_exists($label, $domain)) {
$domain = 'libcalendaring';
}
return $this->rc->gettext($p, $domain);
}
/**
* Send an iTip mail message
*
* @param array Event object to send
* @param string iTip method (REQUEST|REPLY|CANCEL)
* @param array Hash array with recipient data (name, email)
* @param string Mail subject
* @param string Mail body text label
* @param object Mail_mime object with message data
* @param boolean Request RSVP
* @return boolean True on success, false on failure
*/
public function send_itip_message($event, $method, $recipient, $subject, $bodytext, $message = null, $rsvp = true)
{
if (!$this->sender['name']) {
$this->sender['name'] = $this->sender['email'];
}
if (!$message) {
libcalendaring::identify_recurrence_instance($event);
$message = $this->compose_itip_message($event, $method, $rsvp);
}
$mailto = rcube_utils::idn_to_ascii($recipient['email']);
$headers = $message->headers();
$headers['To'] = format_email_recipient($mailto, $recipient['name']);
$headers['Subject'] = $this->gettext(array(
'name' => $subject,
'vars' => array(
'title' => $event['title'],
'name' => $this->sender['name'],
)
));
// compose a list of all event attendees
$attendees_list = array();
foreach ((array)$event['attendees'] as $attendee) {
$attendees_list[] = (!empty($attendee['name']) && !empty($attendee['email'])) ?
$attendee['name'] . ' <' . $attendee['email'] . '>' :
(!empty($attendee['name']) ? $attendee['name'] : $attendee['email']);
}
$recurrence_info = '';
if (!empty($event['recurrence_id'])) {
$msg = $this->gettext(!empty($event['thisandfuture']) ? 'itipmessagefutureoccurrence' : 'itipmessagesingleoccurrence');
$recurrence_info = "\n\n** $msg **";
}
else if (!empty($event['recurrence'])) {
$recurrence_info = sprintf("\n%s: %s", $this->gettext('recurring'), $this->lib->recurrence_text($event['recurrence']));
}
$mailbody = $this->gettext(array(
'name' => $bodytext,
'vars' => array(
'title' => $event['title'],
'date' => $this->lib->event_date_text($event) . $recurrence_info,
'attendees' => join(",\n ", $attendees_list),
'sender' => $this->sender['name'],
'organizer' => $this->sender['name'],
'description' => isset($event['description']) ? $event['description'] : '',
)
));
// remove redundant empty lines (e.g. when an event description is empty)
$mailbody = preg_replace('/\n{3,}/', "\n\n", $mailbody);
// if (!empty($event['comment'])) {
// $mailbody .= "\n\n" . $this->gettext('itipsendercomment') . $event['comment'];
// }
// append links for direct invitation replies
if ($method == 'REQUEST' && $rsvp
&& $this->rc->config->get('calendar_itip_smtp_server')
&& ($token = $this->store_invitation($event, $recipient['email']))
) {
$mailbody .= "\n\n" . $this->gettext(array(
'name' => 'invitationattendlinks',
'vars' => array('url' => $this->plugin->get_url(array('action' => 'attend', 't' => $token))),
));
}
else if ($method == 'CANCEL' && $event['cancelled']) {
$this->cancel_itip_invitation($event);
}
$message->headers($headers, true);
$message->setTXTBody(rcube_mime::format_flowed($mailbody, 79));
if ($this->rc->config->get('libcalendaring_itip_debug', false)) {
rcube::console('iTip ' . $method, $message->txtHeaders() . "\r\n" . $message->get());
}
// finally send the message
$this->itip_send = true;
$sent = $this->rc->deliver_message($message, $headers['X-Sender'], $mailto, $smtp_error);
$this->itip_send = false;
return $sent;
}
/**
* Plugin hook to alter SMTP authentication.
* This is used if iTip messages are to be sent from an unauthenticated session
*/
public function smtp_connect_hook($p)
{
// replace smtp auth settings if we're not in an authenticated session
if ($this->itip_send && !$this->rc->user->ID) {
foreach (array('smtp_server', 'smtp_user', 'smtp_pass') as $prop) {
$p[$prop] = $this->rc->config->get("calendar_itip_$prop", $p[$prop]);
}
}
return $p;
}
/**
* Helper function to build a Mail_mime object to send an iTip message
*
* @param array Event object to send
* @param string iTip method (REQUEST|REPLY|CANCEL)
* @param boolean Request RSVP
* @return object Mail_mime object with message data
*/
public function compose_itip_message($event, $method, $rsvp = true)
{
$from = rcube_utils::idn_to_ascii($this->sender['email']);
$from_utf = rcube_utils::idn_to_utf8($from);
$sender = format_email_recipient($from, $this->sender['name']);
// truncate list attendees down to the recipient of the iTip Reply.
// constraints for a METHOD:REPLY according to RFC 5546
if ($method == 'REPLY') {
$replying_attendee = null;
$reply_attendees = array();
foreach ($event['attendees'] as $attendee) {
if (!empty($attendee['role']) && $attendee['role'] == 'ORGANIZER') {
$reply_attendees[] = $attendee;
}
// we accept on behalf of a resource
else if (isset($event['_resource']) && strcasecmp($attendee['email'], $event['_resource']) == 0) {
$replying_attendee = $attendee;
$replying_attendee['sent-by'] = 'mailto:' . $from_utf;
}
else if (strcasecmp($attendee['email'], $from) == 0 || strcasecmp($attendee['email'], $from_utf) == 0) {
$replying_attendee = $attendee;
if ($attendee['status'] != 'DELEGATED') {
unset($replying_attendee['rsvp']); // unset the RSVP attribute
}
}
// include attendees relevant for delegation (RFC 5546, Section 4.2.5)
else if ((!empty($attendee['delegated-to']) &&
(strcasecmp($attendee['delegated-to'], $from) == 0 || strcasecmp($attendee['delegated-to'], $from_utf) == 0)) ||
(!empty($attendee['delegated-from']) &&
(strcasecmp($attendee['delegated-from'], $from) == 0 || strcasecmp($attendee['delegated-from'], $from_utf) == 0))) {
$reply_attendees[] = $attendee;
}
}
if ($replying_attendee) {
array_unshift($reply_attendees, $replying_attendee);
$event['attendees'] = $reply_attendees;
}
if (!empty($event['recurrence'])) {
unset($event['recurrence']['EXCEPTIONS']);
}
}
// set RSVP for every attendee
else if ($method == 'REQUEST') {
foreach ($event['attendees'] as $i => $attendee) {
if (
($rsvp || !isset($attendee['rsvp']))
&& (
(empty($attendee['status']) || $attendee['status'] != 'DELEGATED')
&& $attendee['role'] != 'NON-PARTICIPANT'
)
) {
$event['attendees'][$i]['rsvp']= (bool) $rsvp;
}
}
}
else if ($method == 'CANCEL') {
if ($event['recurrence']) {
unset($event['recurrence']['EXCEPTIONS']);
}
}
// Set SENT-BY property if the sender is not the organizer
if ($method == 'CANCEL' || $method == 'REQUEST') {
foreach ((array)$event['attendees'] as $idx => $attendee) {
if ($attendee['role'] == 'ORGANIZER'
&& $attendee['email']
&& strcasecmp($attendee['email'], $from) != 0
&& strcasecmp($attendee['email'], $from_utf) != 0
) {
$attendee['sent-by'] = 'mailto:' . $from_utf;
$event['organizer'] = $event['attendees'][$idx] = $attendee;
break;
}
}
}
// compose multipart message using PEAR:Mail_Mime
$message = new Mail_mime("\r\n");
$message->setParam('text_encoding', 'quoted-printable');
$message->setParam('head_encoding', 'quoted-printable');
$message->setParam('head_charset', RCUBE_CHARSET);
$message->setParam('text_charset', RCUBE_CHARSET . ";\r\n format=flowed");
$message->setContentType('multipart/alternative');
// compose common headers array
$headers = array(
'From' => $sender,
'Date' => $this->rc->user_date(),
'Message-ID' => $this->rc->gen_message_id(),
'X-Sender' => $from,
);
if ($agent = $this->rc->config->get('useragent')) {
$headers['User-Agent'] = $agent;
}
$message->headers($headers);
// attach ics file for this event
$ical = libcalendaring::get_ical();
$ics = $ical->export(array($event), $method, false, $method == 'REQUEST' && $this->plugin->driver ? array($this->plugin->driver, 'get_attachment_body') : false);
$filename = !empty($event['_type']) && $event['_type'] == 'task' ? 'todo.ics' : 'event.ics';
$message->addAttachment($ics, 'text/calendar', $filename, false, '8bit', '', RCUBE_CHARSET . "; method=" . $method);
return $message;
}
/**
* Forward the given iTip event as delegation to another person
*
* @param array Event object to delegate
* @param mixed Delegatee as string or hash array with keys 'name' and 'mailto'
* @param boolean The delegator's RSVP flag
* @param array List with indexes of new/updated attendees
* @return boolean True on success, False on failure
*/
public function delegate_to(&$event, $delegate, $rsvp = false, &$attendees = array())
{
if (is_string($delegate)) {
$delegates = rcube_mime::decode_address_list($delegate, 1, false);
if (count($delegates) > 0) {
$delegate = reset($delegates);
}
}
$emails = $this->lib->get_user_emails();
$me = $this->rc->user->list_emails(true);
// find/create the delegate attendee
$delegate_attendee = array(
'email' => $delegate['mailto'],
'name' => $delegate['name'],
'role' => 'REQ-PARTICIPANT',
);
$delegate_index = count($event['attendees']);
foreach ($event['attendees'] as $i => $attendee) {
// set myself the DELEGATED-TO parameter
if ($attendee['email'] && in_array(strtolower($attendee['email']), $emails)) {
$event['attendees'][$i]['delegated-to'] = $delegate['mailto'];
$event['attendees'][$i]['status'] = 'DELEGATED';
$event['attendees'][$i]['role'] = 'NON-PARTICIPANT';
$event['attendees'][$i]['rsvp'] = $rsvp;
$me['email'] = $attendee['email'];
$delegate_attendee['role'] = $attendee['role'];
}
// the disired delegatee is already listed as an attendee
else if (stripos($delegate['mailto'], $attendee['email']) !== false && $attendee['role'] != 'ORGANIZER') {
$delegate_attendee = $attendee;
$delegate_index = $i;
break;
}
// TODO: remove previous delegatee (i.e. attendee that has DELEGATED-FROM == $me)
}
// set/add delegate attendee with RSVP=TRUE and DELEGATED-FROM parameter
$delegate_attendee['rsvp'] = true;
$delegate_attendee['status'] = 'NEEDS-ACTION';
$delegate_attendee['delegated-from'] = $me['email'];
$event['attendees'][$delegate_index] = $delegate_attendee;
$attendees[] = $delegate_index;
$this->set_sender_email($me['email']);
return $this->send_itip_message($event, 'REQUEST', $delegate_attendee, 'itipsubjectdelegatedto', 'itipmailbodydelegatedto');
}
/**
* Handler for calendar/itip-status requests
*/
public function get_itip_status($event, $existing = null)
{
$action = $event['rsvp'] ? 'rsvp' : '';
$status = $event['fallback'];
$latest = $rescheduled = false;
$html = '';
if (is_numeric($event['changed'])) {
$event['changed'] = new DateTime('@'.$event['changed']);
}
// check if the given itip object matches the last state
if ($existing) {
$latest = (isset($event['sequence']) && intval($existing['sequence']) == intval($event['sequence'])) ||
(!isset($event['sequence']) && $existing['changed'] && $existing['changed'] >= $event['changed']);
}
// determine action for REQUEST
if ($event['method'] == 'REQUEST') {
$html = html::div('rsvp-status', $this->gettext('acceptinvitation'));
if ($existing) {
$rsvp = $event['rsvp'];
$emails = $this->lib->get_user_emails();
foreach ($existing['attendees'] as $attendee) {
if (!empty($attendee['email']) && in_array(strtolower($attendee['email']), $emails)) {
$status = !empty($attendee['status']) ? strtoupper($attendee['status']) : '';
break;
}
}
}
else {
$rsvp = $event['rsvp'] && $this->rc->config->get('calendar_allow_itip_uninvited', true);
}
$status_lc = strtolower($status);
if ($status_lc == 'unknown' && !$this->rc->config->get('calendar_allow_itip_uninvited', true)) {
$html = html::div('rsvp-status', $this->gettext('notanattendee'));
$action = 'import';
}
else if (in_array($status_lc, $this->rsvp_status)) {
$status_text = $this->gettext(($latest ? 'youhave' : 'youhavepreviously') . $status_lc);
if ($existing && ($existing['sequence'] > $event['sequence']
|| (!isset($event['sequence']) && $existing['changed'] && $existing['changed'] > $event['changed']))
) {
$action = ''; // nothing to do here, outdated invitation
if ($status_lc == 'needs-action') {
$status_text = $this->gettext('outdatedinvitation');
}
}
else if (!$existing && !$rsvp) {
$action = 'import';
}
else {
if ($latest) {
$diff = $this->get_itip_diff($event, $existing);
// Detect re-scheduling
// FIXME: This is probably to simplistic, or maybe we should just check
// attendee's RSVP flag in the new event?
$rescheduled = !empty($diff['start']) || !empty($diff['end']);
unset($diff['start'], $diff['end']);
}
if ($rescheduled) {
$action = 'rsvp';
$latest = false;
}
else if ($status_lc != 'needs-action') {
// check if there are any changes
if ($latest) {
$latest = empty($diff);
}
$action = !$latest ? 'update' : '';
}
}
$html = html::div('rsvp-status ' . $status_lc, $status_text);
}
}
// determine action for REPLY
else if ($event['method'] == 'REPLY') {
// check whether the sender already is an attendee
if ($existing) {
// Relax checking if that is a reply to the latest version of the event
// We accept versions with older SEQUENCE but no significant changes (Bifrost#T78144)
if (!$latest) {
$num = $got = 0;
foreach (array('start', 'end', 'due', 'allday', 'recurrence', 'location') as $key) {
if (isset($existing[$key])) {
if ($key == 'allday') {
$event[$key] = $event[$key] == 'true';
}
$value = $existing[$key] instanceof DateTimeInterface ? $existing[$key]->format('c') : $existing[$key];
$num++;
- $got += intval($value == $event[$key]);
+ $got += intval($value == ($event[$key] ?? null));
}
}
$latest = $num === $got;
}
$action = $this->rc->config->get('calendar_allow_itip_uninvited', true) ? 'accept' : '';
$listed = false;
foreach ($existing['attendees'] as $attendee) {
if ($attendee['role'] != 'ORGANIZER' && strcasecmp($attendee['email'], $event['attendee']) == 0) {
$status_lc = strtolower($status);
if (in_array($status_lc, $this->rsvp_status)) {
$delegatee = !empty($event['delegated-to']) ? $event['delegated-to']
: (!empty($attendee['delegated-to']) ? $attendee['delegated-to'] : '?');
$html = html::div(
'rsvp-status ' . $status_lc,
$this->gettext([
'name' => 'attendee' . $status_lc,
'vars' => ['delegatedto' => rcube::Q($delegatee)]
])
);
}
$action = $attendee['status'] == $status || !$latest ? '' : 'update';
$listed = true;
break;
}
}
if (!$listed) {
$html = html::div('rsvp-status', $this->gettext('itipnewattendee'));
}
}
else {
$html = html::div('rsvp-status hint', $this->gettext('itipobjectnotfound'));
$action = '';
}
}
else if ($event['method'] == 'CANCEL') {
if (!$existing) {
$html = html::div('rsvp-status hint', $this->gettext('itipobjectnotfound'));
$action = '';
}
}
return array(
'uid' => $event['uid'],
'id' => asciiwords($event['uid'], true),
'existing' => $existing ? true : false,
'saved' => $existing ? true : false,
'latest' => $latest,
'status' => $status,
'action' => $action,
'rescheduled' => $rescheduled,
'html' => $html,
);
}
protected function get_itip_diff($event, $existing)
{
if (empty($event) || empty($existing) || empty($event['message_uid']) || empty($event['mime_id'])) {
return;
}
$itip = $this->lib->mail_get_itip_object($event['mbox'], $event['message_uid'], $event['mime_id'],
$event['task'] == 'calendar' ? 'event' : 'task');
if ($itip) {
// List of properties that could change without SEQUENCE bump
$attrs = array('description', 'title', 'location', 'url');
$diff = array();
foreach ($attrs as $attr) {
if (isset($itip[$attr]) && $itip[$attr] != $existing[$attr]) {
$diff[$attr] = array(
'new' => $itip[$attr],
'old' => $existing[$attr]
);
}
}
$status = array();
$itip_attendees = array();
$existing_attendees = array();
$emails = $this->lib->get_user_emails();
// Compare list of attendees (ignoring current user status)
foreach ((array) $existing['attendees'] as $idx => $attendee) {
if ($attendee['email'] && in_array(strtolower($attendee['email']), $emails)) {
$status[strtolower($attendee['email'])] = $attendee['status'];
}
if (!empty($attendee['role']) && $attendee['role'] == 'ORGANIZER') {
$attendee['status'] = 'ACCEPTED'; // sometimes is not set for exceptions
$existing['attendees'][$idx] = $attendee;
}
$existing_attendees[] = $attendee['email'] . (isset($attendee['name']) ? $attendee['name'] : '');
}
foreach ((array) $itip['attendees'] as $idx => $attendee) {
if (!empty($attendee['email']) && !empty($status[strtolower($attendee['email'])])) {
$attendee['status'] = $status[strtolower($attendee['email'])];
$itip['attendees'][$idx] = $attendee;
}
$itip_attendees[] = $attendee['email'] . (isset($attendee['name']) ? $attendee['name'] : '');
}
if ($itip_attendees != $existing_attendees) {
$diff['attendees'] = array(
'new' => $itip['attendees'],
'old' => $existing['attendees']
);
}
if ($existing['start'] != $itip['start']) {
$diff['start'] = array(
'new' => $itip['start'],
'old' => $existing['start'],
);
}
if ($existing['end'] != $itip['end']) {
$diff['end'] = array(
'new' => $itip['end'],
'old' => $existing['end'],
);
}
return $diff;
}
}
/**
* Build inline UI elements for iTip messages
*/
public function mail_itip_inline_ui($event, $method, $mime_id, $task, $message_date = null, $preview_url = null)
{
$buttons = array();
$dom_id = asciiwords($event['uid'], true);
$rsvp_status = 'unknown';
$rsvp_buttons = '';
// pass some metadata about the event and trigger the asynchronous status check
$changed = !empty($event['changed']) && is_object($event['changed']) ? $event['changed'] : $message_date;
$metadata = array(
'uid' => $event['uid'],
'_instance' => isset($event['_instance']) ? $event['_instance'] : null,
'changed' => $changed ? $changed->format('U') : 0,
'sequence' => intval($event['sequence'] ?? 0),
'method' => $method,
'task' => $task,
'mime_id' => $mime_id,
'rsvp' => false,
);
// create buttons to be activated from async request checking existence of this event in local calendars
$buttons[] = html::div(array('id' => 'loading-'.$dom_id, 'class' => 'rsvp-status loading'), $this->gettext('loading'));
// on iTip REPLY we have two options:
if ($method == 'REPLY') {
$title = $this->gettext('itipreply');
$attendee = self::find_reply_attendee($event);
if ($attendee) {
$metadata['attendee'] = $attendee['email'];
$rsvp_status = strtoupper($attendee['status']);
if (!empty($attendee['delegated-to'])) {
$metadata['delegated-to'] = $attendee['delegated-to'];
}
}
// 1. update the attendee status on our copy
$update_button = html::tag('input', array(
'type' => 'button',
'class' => 'button',
'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . rcube::JQ($mime_id) . "', '$task')",
'value' => $this->gettext('updateattendeestatus'),
));
// 2. accept or decline a new or delegate attendee
$accept_buttons = html::tag('input', array(
'type' => 'button',
'class' => "button accept",
'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . rcube::JQ($mime_id) . "', '$task')",
'value' => $this->gettext('acceptattendee'),
));
$accept_buttons .= html::tag('input', array(
'type' => 'button',
'class' => "button decline",
'onclick' => "rcube_libcalendaring.decline_attendee_reply('" . rcube::JQ($mime_id) . "', '$task')",
'value' => $this->gettext('declineattendee'),
));
$buttons[] = html::div(array('id' => 'update-'.$dom_id, 'style' => 'display:none'), $update_button);
$buttons[] = html::div(array('id' => 'accept-'.$dom_id, 'style' => 'display:none'), $accept_buttons);
// For replies we need more metadata
foreach (array('start', 'end', 'due', 'allday', 'recurrence', 'location') as $key) {
if (isset($event[$key])) {
$metadata[$key] = $event[$key] instanceof DateTimeInterface ? $event[$key]->format('c') : $event[$key];
}
}
}
// when receiving iTip REQUEST messages:
else if ($method == 'REQUEST') {
$emails = $this->lib->get_user_emails();
$title = !empty($event['sequence']) ? $this->gettext('itipupdate') : $this->gettext('itipinvitation');
$metadata['rsvp'] = true;
if (is_object($event['start'])) {
$metadata['date'] = $event['start']->format('U');
}
// check for X-KOLAB-INVITATIONTYPE property and only show accept/decline buttons
if (self::get_custom_property($event, 'X-KOLAB-INVITATIONTYPE') == 'CONFIRMATION') {
$this->rsvp_actions = array('accepted','declined');
$metadata['nosave'] = true;
}
// 1. display RSVP buttons (if the user was invited)
foreach ($this->rsvp_actions as $method) {
$rsvp_buttons .= html::tag('input', array(
'type' => 'button',
'class' => "button $method",
'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . rcube::JQ($mime_id) . "', '$task', '$method', '$dom_id')",
'value' => $this->gettext('itip' . $method),
));
}
// add button to open calendar/preview
if (!empty($preview_url)) {
$msgref = $this->lib->ical_message->folder . '/' . $this->lib->ical_message->uid . '#' . $mime_id;
$rsvp_buttons .= html::tag('input', array(
'type' => 'button',
// TODO: Temp. disable this button on small screen in Elastic (Bifrost#T105747)
'class' => "button preview hidden-phone hidden-small",
'onclick' => "rcube_libcalendaring.open_itip_preview('" . rcube::JQ($preview_url) . "', '" . rcube::JQ($msgref) . "')",
'value' => $this->gettext('openpreview'),
));
}
// 2. update the local copy with minor changes
$update_button = html::tag('input', array(
'type' => 'button',
'class' => 'button',
'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . rcube::JQ($mime_id) . "', '$task')",
'value' => $this->gettext('updatemycopy'),
));
// 3. Simply import the event without replying
$import_button = html::tag('input', array(
'type' => 'button',
'class' => 'button',
'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . rcube::JQ($mime_id) . "', '$task')",
'value' => $this->gettext('importtocalendar'),
));
// check my status as an attendee
foreach ($event['attendees'] as $attendee) {
$attendee_role = $attendee['role'] ?? '';
if (!empty($attendee['email']) && $attendee_role != 'ORGANIZER' && in_array(strtolower($attendee['email']), $emails)) {
$metadata['attendee'] = $attendee['email'];
$metadata['rsvp'] = $attendee['rsvp'] || $attendee_role != 'NON-PARTICIPANT';
$rsvp_status = !empty($attendee['status']) ? strtoupper($attendee['status']) : 'NEEDS-ACTION';
break;
}
}
// add itip reply message controls
$rsvp_buttons .= html::div('itip-reply-controls', $this->itip_rsvp_options_ui($dom_id, !empty($metadata['nosave'])));
$buttons[] = html::div(array('id' => 'rsvp-'.$dom_id, 'class' => 'rsvp-buttons', 'style' => 'display:none'), $rsvp_buttons);
$buttons[] = html::div(array('id' => 'update-'.$dom_id, 'style' => 'display:none'), $update_button);
// prepare autocompletion for delegation dialog
if (in_array('delegated', $this->rsvp_actions)) {
$this->rc->autocomplete_init();
}
}
// for CANCEL messages, we can:
else if ($method == 'CANCEL') {
$title = $this->gettext('itipcancellation');
$event_prop = array_filter(array(
'uid' => $event['uid'],
'_instance' => isset($event['_instance']) ? $event['_instance'] : null,
'_savemode' => isset($event['_savemode']) ? $event['_savemode'] : null,
));
// 1. remove the event from our calendar
$button_remove = html::tag('input', array(
'type' => 'button',
'class' => 'button',
'onclick' => "rcube_libcalendaring.remove_from_itip(" . rcube_output::json_serialize($event_prop) . ", '$task', '" . rcube::JQ($event['title']) . "')",
'value' => $this->gettext('removefromcalendar'),
));
// 2. update our copy with status=cancelled
$button_update = html::tag('input', array(
'type' => 'button',
'class' => 'button',
'onclick' => "rcube_libcalendaring.add_from_itip_mail('" . rcube::JQ($mime_id) . "', '$task')",
'value' => $this->gettext('updatemycopy'),
));
$buttons[] = html::div(array('id' => 'rsvp-'.$dom_id, 'style' => 'display:none'), $button_remove . $button_update);
$rsvp_status = 'CANCELLED';
$metadata['rsvp'] = true;
}
// append generic import button
if (!empty($import_button)) {
$buttons[] = html::div(array('id' => 'import-'.$dom_id, 'style' => 'display:none'), $import_button);
}
// pass some metadata about the event and trigger the asynchronous status check
$metadata['fallback'] = $rsvp_status;
$metadata['rsvp'] = intval($metadata['rsvp']);
$this->rc->output->add_script("rcube_libcalendaring.fetch_itip_object_status(" . rcube_output::json_serialize($metadata) . ")", 'docready');
// get localized texts from the right domain
$output_labels = [];
$labels = ['savingdata','deleteobjectconfirm','declinedeleteconfirm','declineattendee',
'cancel','itipdelegated','declineattendeeconfirm','itipcomment','delegateinvitation',
'delegateto','delegatersvpme','delegateinvalidaddress'
];
foreach ($labels as $label) {
$output_labels["itip.$label"] = $this->gettext($label);
}
$this->rc->output->command('add_label', $output_labels);
// show event details with buttons
return $this->itip_object_details_table($event, $title) .
html::div(array('class' => 'itip-buttons', 'id' => 'itip-buttons-' . asciiwords($metadata['uid'], true)), join('', $buttons));
}
/**
* Render an RSVP UI widget with buttons to respond on iTip invitations
*/
function itip_rsvp_buttons($attrib = array(), $actions = null)
{
$attrib += array('type' => 'button');
if (!$actions) {
$actions = $this->rsvp_actions;
}
$buttons = '';
foreach ($actions as $method) {
$buttons .= html::tag('input', array(
'type' => $attrib['type'],
'name' => !empty($attrib['iname']) ? $attrib['iname'] : null,
'class' => 'button',
'rel' => $method,
'value' => $this->gettext('itip' . $method),
));
}
// add localized texts for the delegation dialog
$output_labels = [];
if (in_array('delegated', $actions)) {
$labels = ['itipdelegated','itipcomment','delegateinvitation',
'delegateto','delegatersvpme','delegateinvalidaddress','cancel'
];
foreach ($labels as $label) {
$output_labels["itip.$label"] = $this->gettext($label);
}
}
foreach (['all','current','future'] as $mode) {
$output_labels["rsvpmode$mode"] = $this->gettext("rsvpmode$mode");
}
$this->rc->output->command('add_label', $output_labels);
$savemode_radio = new html_radiobutton(array('name' => '_rsvpmode', 'class' => 'rsvp-replymode'));
return html::div($attrib,
html::div('label', $this->gettext('acceptinvitation')) .
html::div('rsvp-buttons itip-buttons',
$buttons .
html::div('itip-reply-controls', $this->itip_rsvp_options_ui($attrib['id']))
)
);
}
/**
* Render UI elements to control iTip reply message sending
*/
public function itip_rsvp_options_ui($dom_id, $disable = false)
{
$itip_sending = $this->rc->config->get('calendar_itip_send_option', 3);
// itip sending is entirely disabled
if ($itip_sending === 0) {
return '';
}
// add checkbox to suppress itip reply message
else if ($itip_sending >= 2) {
$toggle_attrib = array(
'type' => 'checkbox',
'id' => 'noreply-'.$dom_id,
'value' => 1,
'disabled' => $disable,
'checked' => ($itip_sending & 1) == 0,
'class' => 'pretty-checkbox',
);
$rsvp_additions = html::label(array('class' => 'noreply-toggle'),
html::tag('input', $toggle_attrib) . ' ' . $this->gettext('itipsuppressreply')
);
}
// add input field for reply comment
$toggle_attrib = array(
'href' => '#toggle',
'class' => 'reply-comment-toggle',
'onclick' => '$(this).hide().parent().find(\'textarea\').show().focus()'
);
$textarea_attrib = array(
'id' => 'reply-comment-' . $dom_id,
'name' => '_comment',
'cols' => 40,
'rows' => 4,
'class' => 'form-control',
'style' => 'display:none',
'placeholder' => $this->gettext('itipcomment')
);
$rsvp_additions .= html::a($toggle_attrib, $this->gettext('itipeditresponse'))
. html::div('itip-reply-comment', html::tag('textarea', $textarea_attrib, ''));
return $rsvp_additions;
}
/**
* Render event/task details in a table
*/
function itip_object_details_table($event, $title)
{
$table = new html_table(array('cols' => 2, 'border' => 0, 'class' => 'calendar-eventdetails'));
$table->add('ititle', $title);
$table->add('title', rcube::Q(trim($event['title'])));
if ($event['start'] && $event['end']) {
$table->add('label', $this->gettext('date'));
$table->add('date', rcube::Q($this->lib->event_date_text($event)));
}
else if ($event['due'] && $event['_type'] == 'task') {
$table->add('label', $this->gettext('date'));
$table->add('date', rcube::Q($this->lib->event_date_text($event)));
}
if (!empty($event['recurrence_date'])) {
$table->add('label', '');
$table->add('recurrence-id', $this->gettext($event['thisandfuture'] ? 'itipfutureoccurrence' : 'itipsingleoccurrence'));
}
else if (!empty($event['recurrence'])) {
$table->add('label', $this->gettext('recurring'));
$table->add('recurrence', $this->lib->recurrence_text($event['recurrence']));
}
if (isset($event['location']) && ($location = trim($event['location']))) {
$table->add('label', $this->gettext('location'));
$table->add('location', rcube::Q($location));
}
if (!empty($event['status']) && ($event['status'] == 'COMPLETED' || $event['status'] == 'CANCELLED')) {
$table->add('label', $this->gettext('status'));
$table->add('status', $this->gettext('status-' . strtolower($event['status'])));
}
if (isset($event['comment']) && ($comment = trim($event['comment']))) {
$table->add('label', $this->gettext('comment'));
$table->add('location', rcube::Q($comment));
}
return $table->show();
}
/**
* Create iTIP invitation token for later replies via URL
*
* @param array Hash array with event properties
* @param string Attendee email address
* @return string Invitation token
*/
public function store_invitation($event, $attendee)
{
// empty stub
return false;
}
/**
* Mark invitations for the given event as cancelled
*
* @param array Hash array with event properties
*/
public function cancel_itip_invitation($event)
{
// empty stub
return false;
}
/**
* Utility function to get the value of a custom property
*/
public static function get_custom_property($event, $name)
{
$ret = false;
if (is_array($event['x-custom'])) {
array_walk($event['x-custom'], function($prop, $i) use ($name, &$ret) {
if (strcasecmp($prop[0], $name) === 0) {
$ret = $prop[1];
}
});
}
return $ret;
}
/**
* Compare email address
*/
public static function compare_email($value, $email, $email_utf = null)
{
$v1 = !empty($email) && strcasecmp($value, $email) === 0;
$v2 = !empty($email_utf) && strcasecmp($value, $email_utf) === 0;
return $v1 || $v2;
}
/**
* Find an attendee that is not the organizer and has an email matching $email_field
*/
public function find_attendee_by_email($attendees, $email_field, $email, $email_utf = null)
{
foreach ($attendees as $_attendee) {
if (!empty($attendee['role']) && $attendee['role'] == 'ORGANIZER') {
continue;
}
if (!empty($attendee[$email_field]) && self::compare_email($attendee[$email_field], $email, $email_utf)) {
return $attendee;
}
}
return null;
}
/**
* Find the replying attendee in a REPLY
*/
public static function find_reply_attendee($event)
{
// remove the organizer
$itip_attendees = array_filter($event['attendees'], function($item) {
return (empty($item['role']) || $item['role'] != 'ORGANIZER') && !empty($item['email']);
});
// According to rfc there should only be one attendee for a REPLY
if (count($itip_attendees) == 1) {
return array_pop($itip_attendees);
}
// If we don't have anything to match by, pick the first and hope for the best.
if (empty($event['_sender'])) {
return array_shift($itip_attendees);
}
// try to match by sent-by
if ($attendee = self::find_attendee_by_email($itip_attendees, 'sent-by', $event['_sender'], $event['_sender_utf'])) {
return $attendee;
}
// try to match by email
if ($attendee = self::find_attendee_by_email($itip_attendees, 'email', $event['_sender'], $event['_sender_utf'])) {
return $attendee;
}
return null;
}
}

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