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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Jabber message processor to send messages by jabber
*
* @package message_jabber
* @copyright 2008 Luis Rodrigues
* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
*/
require_once($CFG->dirroot.'/message/output/lib.php');
require_once($CFG->libdir.'/jabber/XMPP/XMPP.php');
/**
* The jabber message processor
*
* @package message_jabber
* @copyright 2008 Luis Rodrigues
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class message_output_jabber extends message_output {
/**
* Processes the message and sends a notification via jabber
*
* @param stdClass $eventdata the event data submitted by the message sender plus $eventdata->savedmessageid
* @return true if ok, false if error
*/
function send_message($eventdata){
global $CFG;
// Skip any messaging of suspended and deleted users.
if ($eventdata->userto->auth === 'nologin' or $eventdata->userto->suspended or $eventdata->userto->deleted) {
return true;
}
if (!empty($CFG->noemailever)) {
// hidden setting for development sites, set in config.php if needed
debugging('$CFG->noemailever is active, no jabber message sent.', DEBUG_MINIMAL);
return true;
}
if (PHPUNIT_TEST) {
// No connection to external servers allowed in phpunit tests.
return true;
}
//hold onto jabber id preference because /admin/cron.php sends a lot of messages at once
static $jabberaddresses = array();
if (!array_key_exists($eventdata->userto->id, $jabberaddresses)) {
$jabberaddresses[$eventdata->userto->id] = get_user_preferences('message_processor_jabber_jabberid', null, $eventdata->userto->id);
}
$jabberaddress = $jabberaddresses[$eventdata->userto->id];
//calling s() on smallmessage causes Jabber to display things like < Jabber != a browser
$jabbermessage = fullname($eventdata->userfrom).': '.$eventdata->smallmessage;
if (!empty($eventdata->contexturl)) {
$jabbermessage .= "\n".get_string('view').': '.$eventdata->contexturl;
}
$jabbermessage .= "\n(".get_string('noreply','message').')';
$conn = new XMPPHP_XMPP($CFG->jabberhost,$CFG->jabberport,$CFG->jabberusername,$CFG->jabberpassword,'moodle',$CFG->jabberserver);
// No need to track the presence during the sending message process.
$conn->track_presence = false;
try {
//$conn->useEncryption(false);
$conn->connect();
$conn->processUntil('session_start');
$conn->presence();
$conn->message($jabberaddress, $jabbermessage);
$conn->disconnect();
} catch(XMPPHP_Exception $e) {
debugging($e->getMessage());
return false;
}
return true;
}
/**
* Creates necessary fields in the messaging config form.
*
* @param array $preferences An array of user preferences
*/
function config_form($preferences){
global $CFG;
if (!$this->is_system_configured()) {
return get_string('notconfigured','message_jabber');
} else {
return get_string('jabberid', 'message_jabber').': <input size="30" name="jabber_jabberid" value="'.s($preferences->jabber_jabberid).'" />';
}
}
/**
* Parses the submitted form data and saves it into preferences array.
*
* @param stdClass $form preferences form class
* @param array $preferences preferences array
*/
function process_form($form, &$preferences){
if (isset($form->jabber_jabberid) && !empty($form->jabber_jabberid)) {
$preferences['message_processor_jabber_jabberid'] = $form->jabber_jabberid;
}
}
/**
* Loads the config data from database to put on the form during initial form display
*
* @param array $preferences preferences array
* @param int $userid the user id
*/
function load_data(&$preferences, $userid){
$preferences->jabber_jabberid = get_user_preferences( 'message_processor_jabber_jabberid', '', $userid);
}
/**
* Tests whether the Jabber settings have been configured
* @return boolean true if Jabber is configured
*/
function is_system_configured() {
global $CFG;
return (!empty($CFG->jabberhost) && !empty($CFG->jabberport) && !empty($CFG->jabberusername) && !empty($CFG->jabberpassword));
}
/**
* Tests whether the Jabber settings have been configured on user level
* @param object $user the user object, defaults to $USER.
* @return bool has the user made all the necessary settings
* in their profile to allow this plugin to be used.
*/
function is_user_configured($user = null) {
global $USER;
if (is_null($user)) {
$user = $USER;
}
return (bool)get_user_preferences('message_processor_jabber_jabberid', null, $user->id);
}
}
/*
*
* $f = fopen('/tmp/event_jabberx', 'a+');
fwrite($f, date('l dS \of F Y h:i:s A')."\n");
fwrite($f, "from: $message->userfromid\n");
fwrite($f, "userto: $message->usertoid\n");
fwrite($f, "subject: $message->subject\n");
fclose($f);
$savemessage = new stdClass();
$savemessage->useridfrom = 3;
$savemessage->useridto = 2;
$savemessage->subject = 'IM';
$savemessage->fullmessage = 'full';
$savemessage->timecreated = time();
$a = new message_output_jabber();
$a->send_message($savemessage);
* */