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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Airnotifier manager class
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*
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* @package message_airnotifier
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* @category external
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* @copyright 2012 Jerome Mouneyrac <jerome@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @since Moodle 2.7
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*/
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defined('MOODLE_INTERNAL') || die;
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/**
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* Airnotifier helper manager class
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*
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* @copyright 2012 Jerome Mouneyrac <jerome@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class message_airnotifier_manager {
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/** @var string The Airnotifier public instance URL */
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const AIRNOTIFIER_PUBLICURL = 'https://messages.moodle.net';
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/** @var int Avoid sending notifications to devices not supporting encryption */
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const ENCRYPT_UNSUPPORTED_NOT_SEND = 0;
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/** @var int Send notifications to devices not supporting encryption */
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const ENCRYPT_UNSUPPORTED_SEND = 1;
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/**
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* Include the relevant javascript and language strings for the device
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* toolbox YUI module
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*
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* @return bool
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*/
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public function include_device_ajax() {
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global $PAGE, $CFG;
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$config = new stdClass();
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$config->resturl = '/message/output/airnotifier/rest.php';
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$config->pageparams = array();
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// Include toolboxes.
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$PAGE->requires->yui_module('moodle-message_airnotifier-toolboxes', 'M.message.init_device_toolbox', array(array(
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'ajaxurl' => $config->resturl,
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'config' => $config,
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))
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);
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// Required strings for the javascript.
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$PAGE->requires->strings_for_js(array('deletecheckdevicename'), 'message_airnotifier');
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$PAGE->requires->strings_for_js(array('show', 'hide'), 'moodle');
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return true;
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}
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/**
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* Return the user devices for a specific app.
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*
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* @param string $appname the app name .
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* @param int $userid if empty take the current user.
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* @return array all the devices
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*/
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public function get_user_devices($appname, $userid = null) {
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global $USER, $DB;
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if (empty($userid)) {
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$userid = $USER->id;
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}
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$devices = array();
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$params = array('appid' => $appname, 'userid' => $userid);
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// First, we look all the devices registered for this user in the Moodle core.
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// We are going to allow only ios devices (since these are the ones that supports PUSH notifications).
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$userdevices = $DB->get_records('user_devices', $params);
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foreach ($userdevices as $device) {
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if (core_text::strtolower($device->platform)) {
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// Check if the device is known by airnotifier.
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if (!$airnotifierdev = $DB->get_record('message_airnotifier_devices',
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array('userdeviceid' => $device->id))) {
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// We have to create the device token in airnotifier.
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if (! $this->create_token($device->pushid, $device->platform)) {
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continue;
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}
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$airnotifierdev = new stdClass;
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$airnotifierdev->userdeviceid = $device->id;
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$airnotifierdev->enable = 1;
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$airnotifierdev->id = $DB->insert_record('message_airnotifier_devices', $airnotifierdev);
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}
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$device->id = $airnotifierdev->id;
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$device->enable = $airnotifierdev->enable;
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$devices[] = $device;
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}
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}
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return $devices;
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}
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/**
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* Request and access key to Airnotifier
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*
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* @return mixed The access key or false in case of error
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*/
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public function request_accesskey() {
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global $CFG, $USER;
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require_once($CFG->libdir . '/filelib.php');
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// Sending the request access key request to Airnotifier.
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$serverurl = $CFG->airnotifierurl . ':' . $CFG->airnotifierport . '/accesskeys/';
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// We use an APP Key "none", it can be anything.
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$header = array('Accept: application/json', 'X-AN-APP-NAME: ' . $CFG->airnotifierappname,
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'X-AN-APP-KEY: none');
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$curl = new curl();
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$curl->setHeader($header);
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// Site ids are stored as secrets in md5 in the Moodle public hub.
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$params = array(
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'url' => $CFG->wwwroot,
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'siteid' => md5($CFG->siteidentifier),
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'contact' => $USER->email,
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'description' => $CFG->wwwroot
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);
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$resp = $curl->post($serverurl, $params);
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if ($key = json_decode($resp, true)) {
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if (!empty($key['accesskey'])) {
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return $key['accesskey'];
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}
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}
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debugging("Unexpected response from the Airnotifier server: $resp");
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return false;
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}
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/**
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* Create a device token in the Airnotifier instance
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* @param string $token The token to be created
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* @param string $deviceplatform The device platform (Android, iOS, iOS-fcm, etc...)
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* @return bool True if all was right
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*/
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private function create_token($token, $deviceplatform = '') {
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global $CFG;
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if (!$this->is_system_configured()) {
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return false;
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}
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require_once($CFG->libdir . '/filelib.php');
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$serverurl = $CFG->airnotifierurl . ':' . $CFG->airnotifierport . '/tokens/' . $token;
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$header = array('Accept: application/json', 'X-AN-APP-NAME: ' . $CFG->airnotifierappname,
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'X-AN-APP-KEY: ' . $CFG->airnotifieraccesskey);
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$curl = new curl;
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$curl->setHeader($header);
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$params = [];
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if (!empty($deviceplatform)) {
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$params["device"] = $deviceplatform;
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}
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$resp = $curl->post($serverurl, $params);
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if ($token = json_decode($resp, true)) {
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if (!empty($token['status'])) {
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return $token['status'] == 'ok' || $token['status'] == 'token exists';
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}
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}
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debugging("Unexpected response from the Airnotifier server: $resp");
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return false;
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}
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/**
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* Tests whether the airnotifier settings have been configured
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* @return boolean true if airnotifier is configured
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*/
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public function is_system_configured() {
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global $CFG;
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return (!empty($CFG->airnotifierurl) && !empty($CFG->airnotifierport) &&
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!empty($CFG->airnotifieraccesskey) && !empty($CFG->airnotifierappname) &&
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!empty($CFG->airnotifiermobileappname));
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}
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/**
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* Enables or disables a registered user device so it can receive Push notifications
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*
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* @param int $deviceid the device id
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* @param bool $enable true to enable it, false to disable it
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* @return bool true if the device was enabled, false in case of error
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* @since Moodle 3.2
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*/
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public static function enable_device($deviceid, $enable) {
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global $DB, $USER;
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if (!$device = $DB->get_record('message_airnotifier_devices', array('id' => $deviceid), '*')) {
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return false;
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}
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// Check that the device belongs to the current user.
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if (!$userdevice = $DB->get_record('user_devices', array('id' => $device->userdeviceid, 'userid' => $USER->id), '*')) {
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return false;
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}
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$device->enable = $enable;
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return $DB->update_record('message_airnotifier_devices', $device);
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}
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/**
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* Check the system configuration to detect possible issues.
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*
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* @return array result checks
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*/
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public function check_configuration(): array {
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global $CFG, $DB;
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$results = [];
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// Check Mobile services enabled.
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$summary = html_writer::link((new moodle_url('/admin/settings.php', ['section' => 'mobilesettings'])),
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get_string('enablemobilewebservice', 'admin'));
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if (empty($CFG->enablewebservices) || empty($CFG->enablemobilewebservice)) {
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$results[] = new core\check\result(core\check\result::CRITICAL, $summary, get_string('enablewsdescription', 'webservice'));
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} else {
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$results[] = new core\check\result(core\check\result::OK, $summary, get_string('enabled', 'admin'));
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}
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// Check message outputs are not disabled in config.php.
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$summary = get_string('noemailevernotset', 'message_airnotifier');
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if (!empty($CFG->noemailever)) {
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$results[] = new core\check\result(core\check\result::CRITICAL, $summary,
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get_string('noemaileverset', 'message_airnotifier'));
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} else {
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$results[] = new core\check\result(core\check\result::OK, $summary, get_string('disabled', 'admin'));
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}
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// Check Mobile notifications enabled.
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require_once($CFG->dirroot . '/message/lib.php');
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$processors = get_message_processors();
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$enabled = false;
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foreach ($processors as $processor => $status) {
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if ($processor == 'airnotifier' && $status->enabled) {
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$enabled = true;
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}
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}
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$summary = html_writer::link((new moodle_url('/admin/message.php')), get_string('enableprocessor', 'message_airnotifier'));
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if ($enabled) {
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$results[] = new core\check\result(core\check\result::OK, $summary, get_string('enabled', 'admin'));
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} else {
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$results[] = new core\check\result(core\check\result::CRITICAL, $summary,
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get_string('mobilenotificationsdisabledwarning', 'tool_mobile'));
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}
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// Check Mobile notifications configuration is ok.
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$summary = html_writer::link((new moodle_url('/admin/settings.php', ['section' => 'messagesettingairnotifier'])),
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get_string('notificationsserverconfiguration', 'message_airnotifier'));
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if ($this->is_system_configured()) {
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$results[] = new core\check\result(core\check\result::OK, $summary, get_string('configured', 'message_airnotifier'));
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} else {
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$results[] = new core\check\result(core\check\result::ERROR, $summary, get_string('notconfigured', 'message_airnotifier'));
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}
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// Check settings properly formatted. Only display in case of errors.
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$settingstocheck = ['airnotifierappname', 'airnotifiermobileappname'];
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if ($this->is_system_configured()) {
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foreach ($settingstocheck as $setting) {
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if ($CFG->$setting != trim($CFG->$setting)) {
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$summary = html_writer::link((new moodle_url('/admin/settings.php', ['section' => 'messagesettingairnotifier'])),
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get_string('notificationsserverconfiguration', 'message_airnotifier'));
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$results[] = new core\check\result(core\check\result::ERROR, $summary,
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get_string('airnotifierfielderror', 'message_airnotifier', get_string($setting, 'message_airnotifier')));
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}
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}
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}
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// Check connectivity with Airnotifier.
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$url = $CFG->airnotifierurl . ':' . $CFG->airnotifierport;
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$curl = new \curl();
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$curl->setopt(['CURLOPT_TIMEOUT' => 5, 'CURLOPT_CONNECTTIMEOUT' => 5]);
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$curl->get($url);
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$info = $curl->get_info();
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$summary = html_writer::link($url, get_string('airnotifierurl', 'message_airnotifier'));
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if (!empty($info['http_code']) && ($info['http_code'] == 200 || $info['http_code'] == 302)) {
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$results[] = new core\check\result(core\check\result::OK, $summary, get_string('online', 'message'));
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} else {
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$details = get_string('serverconnectivityerror', 'message_airnotifier', $url);
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$curlerrno = $curl->get_errno();
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if (!empty($curlerrno)) {
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$details .= ' CURL ERROR: ' . $curlerrno . ' - ' . $curl->error;
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}
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$results[] = new core\check\result(core\check\result::ERROR, $summary, $details);
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}
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// Check access key by trying to create an invalid token.
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$settingsurl = new moodle_url('/admin/settings.php', ['section' => 'messagesettingairnotifier']);
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$summary = html_writer::link($settingsurl, get_string('airnotifieraccesskey', 'message_airnotifier'));
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if (!empty($CFG->airnotifieraccesskey)) {
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$url = $CFG->airnotifierurl . ':' . $CFG->airnotifierport . '/tokens/testtoken';
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$header = ['Accept: application/json', 'X-AN-APP-NAME: ' . $CFG->airnotifierappname,
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'X-AN-APP-KEY: ' . $CFG->airnotifieraccesskey];
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$curl->setHeader($header);
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$response = $curl->post($url);
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$info = $curl->get_info();
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if ($curlerrno = $curl->get_errno()) {
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$details = get_string('serverconnectivityerror', 'message_airnotifier', $url);
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$details .= ' CURL ERROR: ' . $curlerrno . ' - ' . $curl->error;
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$results[] = new core\check\result(core\check\result::ERROR, $summary, $details);
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} else if (!empty($info['http_code']) && $info['http_code'] == 400 && $key = json_decode($response, true)) {
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if ($key['error'] == 'Invalid access key') {
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$results[] = new core\check\result(core\check\result::ERROR, $summary, $key['error']);
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} else {
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332 |
$results[] = new core\check\result(core\check\result::OK, $summary, get_string('enabled', 'admin'));
|
|
|
333 |
}
|
|
|
334 |
}
|
|
|
335 |
} else {
|
|
|
336 |
$results[] = new core\check\result(core\check\result::ERROR, $summary,
|
|
|
337 |
get_string('requestaccesskey', 'message_airnotifier'));
|
|
|
338 |
}
|
|
|
339 |
|
|
|
340 |
// Check default preferences.
|
|
|
341 |
$preferences = (array) get_message_output_default_preferences();
|
|
|
342 |
$providerscount = 0;
|
|
|
343 |
$providersconfigured = 0;
|
|
|
344 |
foreach ($preferences as $prefname => $prefval) {
|
|
|
345 |
if (strpos($prefname, 'message_provider') === 0) {
|
|
|
346 |
$providerscount++;
|
|
|
347 |
if (strpos($prefval, 'airnotifier') !== false) {
|
|
|
348 |
$providersconfigured++;
|
|
|
349 |
}
|
|
|
350 |
}
|
|
|
351 |
}
|
|
|
352 |
|
|
|
353 |
$summary = html_writer::link((new moodle_url('/admin/message.php')), get_string('managemessageoutputs', 'message'));
|
|
|
354 |
if ($providersconfigured == 0) {
|
|
|
355 |
$results[] = new core\check\result(core\check\result::ERROR, $summary,
|
|
|
356 |
get_string('messageprovidersempty', 'message_airnotifier'));
|
|
|
357 |
} else if ($providersconfigured / $providerscount < 0.25) {
|
|
|
358 |
// Less than a 25% of the providers are enabled by default for users.
|
|
|
359 |
$results[] = new core\check\result(core\check\result::WARNING, $summary,
|
|
|
360 |
get_string('messageproviderslow', 'message_airnotifier'));
|
|
|
361 |
} else {
|
|
|
362 |
$results[] = new core\check\result(core\check\result::OK, $summary, get_string('configured', 'message_airnotifier'));
|
|
|
363 |
}
|
|
|
364 |
|
|
|
365 |
// Check user devices from last month.
|
|
|
366 |
$recentdevicescount = $DB->count_records_select('user_devices', 'appid = ? AND timemodified > ?',
|
|
|
367 |
[$CFG->airnotifiermobileappname, time() - (WEEKSECS * 4)]);
|
|
|
368 |
|
|
|
369 |
$summary = get_string('userdevices', 'message_airnotifier');
|
|
|
370 |
if (!empty($recentdevicescount)) {
|
|
|
371 |
$results[] = new core\check\result(core\check\result::OK, $summary, get_string('configured', 'message_airnotifier'));
|
|
|
372 |
} else {
|
|
|
373 |
$results[] = new core\check\result(core\check\result::ERROR, $summary, get_string('nodevices', 'message_airnotifier'));
|
|
|
374 |
}
|
|
|
375 |
return $results;
|
|
|
376 |
}
|
|
|
377 |
|
|
|
378 |
/**
|
|
|
379 |
* Send a test notification to the given user.
|
|
|
380 |
*
|
|
|
381 |
* @param stdClass $user user object
|
|
|
382 |
*/
|
|
|
383 |
public function send_test_notification(stdClass $user): void {
|
|
|
384 |
global $CFG;
|
|
|
385 |
require_once($CFG->dirroot . '/message/output/airnotifier/message_output_airnotifier.php');
|
|
|
386 |
|
|
|
387 |
$data = new stdClass;
|
|
|
388 |
$data->userto = clone $user;
|
|
|
389 |
$data->subject = 'Push Notification Test';
|
|
|
390 |
$data->fullmessage = 'This is a test message send at: ' . userdate(time());
|
|
|
391 |
$data->notification = 1;
|
|
|
392 |
|
|
|
393 |
// The send_message method always return true, so it does not make sense to return anything.
|
|
|
394 |
$airnotifier = new message_output_airnotifier();
|
|
|
395 |
$airnotifier->send_message($data);
|
|
|
396 |
}
|
|
|
397 |
|
|
|
398 |
/**
|
|
|
399 |
* Check whether the given user has enabled devices or not for the given app.
|
|
|
400 |
*
|
|
|
401 |
* @param string $appname the app to check
|
|
|
402 |
* @param int $userid the user to check the devices for (empty for current user)
|
|
|
403 |
* @return bool true when the user has enabled devices, false otherwise
|
|
|
404 |
*/
|
|
|
405 |
public function has_enabled_devices(string $appname, int $userid = null): bool {
|
|
|
406 |
$enableddevices = false;
|
|
|
407 |
$devices = $this->get_user_devices($appname, $userid);
|
|
|
408 |
|
|
|
409 |
foreach ($devices as $device) {
|
|
|
410 |
if (!$device->enable) {
|
|
|
411 |
continue;
|
|
|
412 |
}
|
|
|
413 |
$enableddevices = true;
|
|
|
414 |
break;
|
|
|
415 |
}
|
|
|
416 |
return $enableddevices;
|
|
|
417 |
}
|
|
|
418 |
}
|