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See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?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/>.

/**
 * Airnotifier manager class
 *
 * @package    message_airnotifier
 * @category   external
 * @copyright  2012 Jerome Mouneyrac <jerome@moodle.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @since Moodle 2.7
 */

defined('MOODLE_INTERNAL') || die;

/**
 * Airnotifier helper manager class
 *
 * @copyright  2012 Jerome Mouneyrac <jerome@moodle.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class message_airnotifier_manager {

    /** @var string The Airnotifier public instance URL */
    const AIRNOTIFIER_PUBLICURL = 'https://messages.moodle.net';

> /** @var int Avoid sending notifications to devices not supporting encryption */ /** > const ENCRYPT_UNSUPPORTED_NOT_SEND = 0; * Include the relevant javascript and language strings for the device > * toolbox YUI module > /** @var int Send notifications to devices not supporting encryption */ * > const ENCRYPT_UNSUPPORTED_SEND = 1; * @return bool >
*/ public function include_device_ajax() { global $PAGE, $CFG; $config = new stdClass(); $config->resturl = '/message/output/airnotifier/rest.php'; $config->pageparams = array(); // Include toolboxes. $PAGE->requires->yui_module('moodle-message_airnotifier-toolboxes', 'M.message.init_device_toolbox', array(array( 'ajaxurl' => $config->resturl, 'config' => $config, )) ); // Required strings for the javascript. $PAGE->requires->strings_for_js(array('deletecheckdevicename'), 'message_airnotifier'); $PAGE->requires->strings_for_js(array('show', 'hide'), 'moodle'); return true; } /** * Return the user devices for a specific app. * * @param string $appname the app name . * @param int $userid if empty take the current user. * @return array all the devices */ public function get_user_devices($appname, $userid = null) { global $USER, $DB; if (empty($userid)) { $userid = $USER->id; } $devices = array(); $params = array('appid' => $appname, 'userid' => $userid); // First, we look all the devices registered for this user in the Moodle core. // We are going to allow only ios devices (since these are the ones that supports PUSH notifications). $userdevices = $DB->get_records('user_devices', $params); foreach ($userdevices as $device) { if (core_text::strtolower($device->platform)) { // Check if the device is known by airnotifier. if (!$airnotifierdev = $DB->get_record('message_airnotifier_devices', array('userdeviceid' => $device->id))) { // We have to create the device token in airnotifier. if (! $this->create_token($device->pushid, $device->platform)) { continue; } $airnotifierdev = new stdClass; $airnotifierdev->userdeviceid = $device->id; $airnotifierdev->enable = 1; $airnotifierdev->id = $DB->insert_record('message_airnotifier_devices', $airnotifierdev); } $device->id = $airnotifierdev->id; $device->enable = $airnotifierdev->enable; $devices[] = $device; } } return $devices; } /** * Request and access key to Airnotifier * * @return mixed The access key or false in case of error */ public function request_accesskey() { global $CFG, $USER; require_once($CFG->libdir . '/filelib.php'); // Sending the request access key request to Airnotifier. $serverurl = $CFG->airnotifierurl . ':' . $CFG->airnotifierport . '/accesskeys/'; // We use an APP Key "none", it can be anything. $header = array('Accept: application/json', 'X-AN-APP-NAME: ' . $CFG->airnotifierappname, 'X-AN-APP-KEY: none'); $curl = new curl(); $curl->setHeader($header); // Site ids are stored as secrets in md5 in the Moodle public hub. $params = array( 'url' => $CFG->wwwroot, 'siteid' => md5($CFG->siteidentifier), 'contact' => $USER->email, 'description' => $CFG->wwwroot ); $resp = $curl->post($serverurl, $params); if ($key = json_decode($resp, true)) { if (!empty($key['accesskey'])) { return $key['accesskey']; } } debugging("Unexpected response from the Airnotifier server: $resp"); return false; } /** * Create a device token in the Airnotifier instance * @param string $token The token to be created * @param string $deviceplatform The device platform (Android, iOS, iOS-fcm, etc...) * @return bool True if all was right */ private function create_token($token, $deviceplatform = '') { global $CFG; if (!$this->is_system_configured()) { return false; } require_once($CFG->libdir . '/filelib.php'); $serverurl = $CFG->airnotifierurl . ':' . $CFG->airnotifierport . '/tokens/' . $token; $header = array('Accept: application/json', 'X-AN-APP-NAME: ' . $CFG->airnotifierappname, 'X-AN-APP-KEY: ' . $CFG->airnotifieraccesskey); $curl = new curl; $curl->setHeader($header); $params = []; if (!empty($deviceplatform)) { $params["device"] = $deviceplatform; } $resp = $curl->post($serverurl, $params); if ($token = json_decode($resp, true)) { if (!empty($token['status'])) { return $token['status'] == 'ok' || $token['status'] == 'token exists'; } } debugging("Unexpected response from the Airnotifier server: $resp"); return false; } /** * Tests whether the airnotifier settings have been configured * @return boolean true if airnotifier is configured */ public function is_system_configured() { global $CFG; return (!empty($CFG->airnotifierurl) && !empty($CFG->airnotifierport) && !empty($CFG->airnotifieraccesskey) && !empty($CFG->airnotifierappname) && !empty($CFG->airnotifiermobileappname)); } /** * Enables or disables a registered user device so it can receive Push notifications * * @param int $deviceid the device id * @param bool $enable true to enable it, false to disable it * @return bool true if the device was enabled, false in case of error * @since Moodle 3.2 */ public static function enable_device($deviceid, $enable) { global $DB, $USER; if (!$device = $DB->get_record('message_airnotifier_devices', array('id' => $deviceid), '*')) { return false; } // Check that the device belongs to the current user. if (!$userdevice = $DB->get_record('user_devices', array('id' => $device->userdeviceid, 'userid' => $USER->id), '*')) { return false; } $device->enable = $enable; return $DB->update_record('message_airnotifier_devices', $device); }
> /** } > * Check the system configuration to detect possible issues. > * > * @return array result checks > */ > public function check_configuration(): array { > global $CFG, $DB; > > $results = []; > // Check Mobile services enabled. > $summary = html_writer::link((new moodle_url('/admin/settings.php', ['section' => 'mobilesettings'])), > get_string('enablemobilewebservice', 'admin')); > if (empty($CFG->enablewebservices) || empty($CFG->enablemobilewebservice)) { > $results[] = new core\check\result(core\check\result::CRITICAL, $summary, get_string('enablewsdescription', 'webservice')); > } else { > $results[] = new core\check\result(core\check\result::OK, $summary, get_string('enabled', 'admin')); > } > > // Check message outputs are not disabled in config.php. > $summary = get_string('noemailevernotset', 'message_airnotifier'); > if (!empty($CFG->noemailever)) { > $results[] = new core\check\result(core\check\result::CRITICAL, $summary, > get_string('noemaileverset', 'message_airnotifier')); > } else { > $results[] = new core\check\result(core\check\result::OK, $summary, get_string('disabled', 'admin')); > } > > // Check Mobile notifications enabled. > require_once($CFG->dirroot . '/message/lib.php'); > $processors = get_message_processors(); > $enabled = false; > foreach ($processors as $processor => $status) { > if ($processor == 'airnotifier' && $status->enabled) { > $enabled = true; > } > } > > $summary = html_writer::link((new moodle_url('/admin/message.php')), get_string('enableprocessor', 'message_airnotifier')); > if ($enabled) { > $results[] = new core\check\result(core\check\result::OK, $summary, get_string('enabled', 'admin')); > } else { > $results[] = new core\check\result(core\check\result::CRITICAL, $summary, > get_string('mobilenotificationsdisabledwarning', 'tool_mobile')); > } > > // Check Mobile notifications configuration is ok. > $summary = html_writer::link((new moodle_url('/admin/settings.php', ['section' => 'messagesettingairnotifier'])), > get_string('notificationsserverconfiguration', 'message_airnotifier')); > if ($this->is_system_configured()) { > $results[] = new core\check\result(core\check\result::OK, $summary, get_string('configured', 'message_airnotifier')); > } else { > $results[] = new core\check\result(core\check\result::ERROR, $summary, get_string('notconfigured', 'message_airnotifier')); > } > > // Check settings properly formatted. Only display in case of errors. > $settingstocheck = ['airnotifierappname', 'airnotifiermobileappname']; > if ($this->is_system_configured()) { > foreach ($settingstocheck as $setting) { > if ($CFG->$setting != trim($CFG->$setting)) { > $summary = html_writer::link((new moodle_url('/admin/settings.php', ['section' => 'messagesettingairnotifier'])), > get_string('notificationsserverconfiguration', 'message_airnotifier')); > > $results[] = new core\check\result(core\check\result::ERROR, $summary, > get_string('airnotifierfielderror', 'message_airnotifier', get_string($setting, 'message_airnotifier'))); > } > } > } > > // Check connectivity with Airnotifier. > $url = $CFG->airnotifierurl . ':' . $CFG->airnotifierport; > $curl = new \curl(); > $curl->setopt(['CURLOPT_TIMEOUT' => 5, 'CURLOPT_CONNECTTIMEOUT' => 5]); > $curl->get($url); > $info = $curl->get_info(); > > $summary = html_writer::link($url, get_string('airnotifierurl', 'message_airnotifier')); > if (!empty($info['http_code']) && ($info['http_code'] == 200 || $info['http_code'] == 302)) { > $results[] = new core\check\result(core\check\result::OK, $summary, get_string('online', 'message')); > } else { > $details = get_string('serverconnectivityerror', 'message_airnotifier', $url); > $curlerrno = $curl->get_errno(); > if (!empty($curlerrno)) { > $details .= ' CURL ERROR: ' . $curlerrno . ' - ' . $curl->error; > } > $results[] = new core\check\result(core\check\result::ERROR, $summary, $details); > } > > // Check access key by trying to create an invalid token. > $settingsurl = new moodle_url('/admin/settings.php', ['section' => 'messagesettingairnotifier']); > $summary = html_writer::link($settingsurl, get_string('airnotifieraccesskey', 'message_airnotifier')); > if (!empty($CFG->airnotifieraccesskey)) { > $url = $CFG->airnotifierurl . ':' . $CFG->airnotifierport . '/tokens/testtoken'; > $header = ['Accept: application/json', 'X-AN-APP-NAME: ' . $CFG->airnotifierappname, > 'X-AN-APP-KEY: ' . $CFG->airnotifieraccesskey]; > $curl->setHeader($header); > $response = $curl->post($url); > $info = $curl->get_info(); > > if ($curlerrno = $curl->get_errno()) { > $details = get_string('serverconnectivityerror', 'message_airnotifier', $url); > $details .= ' CURL ERROR: ' . $curlerrno . ' - ' . $curl->error; > $results[] = new core\check\result(core\check\result::ERROR, $summary, $details); > } else if (!empty($info['http_code']) && $info['http_code'] == 400 && $key = json_decode($response, true)) { > if ($key['error'] == 'Invalid access key') { > $results[] = new core\check\result(core\check\result::ERROR, $summary, $key['error']); > } else { > $results[] = new core\check\result(core\check\result::OK, $summary, get_string('enabled', 'admin')); > } > } > } else { > $results[] = new core\check\result(core\check\result::ERROR, $summary, > get_string('requestaccesskey', 'message_airnotifier')); > } > > // Check default preferences. > $preferences = (array) get_message_output_default_preferences(); > $providerscount = 0; > $providersconfigured = 0; > foreach ($preferences as $prefname => $prefval) { > if (strpos($prefname, 'message_provider') === 0) { > $providerscount++; > if (strpos($prefval, 'airnotifier') !== false) { > $providersconfigured++; > } > } > } > > $summary = html_writer::link((new moodle_url('/admin/message.php')), get_string('managemessageoutputs', 'message')); > if ($providersconfigured == 0) { > $results[] = new core\check\result(core\check\result::ERROR, $summary, > get_string('messageprovidersempty', 'message_airnotifier')); > } else if ($providersconfigured / $providerscount < 0.25) { > // Less than a 25% of the providers are enabled by default for users. > $results[] = new core\check\result(core\check\result::WARNING, $summary, > get_string('messageproviderslow', 'message_airnotifier')); > } else { > $results[] = new core\check\result(core\check\result::OK, $summary, get_string('configured', 'message_airnotifier')); > } > > // Check user devices from last month. > $recentdevicescount = $DB->count_records_select('user_devices', 'appid = ? AND timemodified > ?', > [$CFG->airnotifiermobileappname, time() - (WEEKSECS * 4)]); > > $summary = get_string('userdevices', 'message_airnotifier'); > if (!empty($recentdevicescount)) { > $results[] = new core\check\result(core\check\result::OK, $summary, get_string('configured', 'message_airnotifier')); > } else { > $results[] = new core\check\result(core\check\result::ERROR, $summary, get_string('nodevices', 'message_airnotifier')); > } > return $results; > } > > /** > * Send a test notification to the given user. > * > * @param stdClass $user user object > */ > public function send_test_notification(stdClass $user): void { > global $CFG; > require_once($CFG->dirroot . '/message/output/airnotifier/message_output_airnotifier.php'); > > $data = new stdClass; > $data->userto = clone $user; > $data->subject = 'Push Notification Test'; > $data->fullmessage = 'This is a test message send at: ' . userdate(time()); > $data->notification = 1; > > // The send_message method always return true, so it does not make sense to return anything. > $airnotifier = new message_output_airnotifier(); > $airnotifier->send_message($data); > } > > /** > * Check whether the given user has enabled devices or not for the given app. > * > * @param string $appname the app to check > * @param int $userid the user to check the devices for (empty for current user) > * @return bool true when the user has enabled devices, false otherwise > */ > public function has_enabled_devices(string $appname, int $userid = null): bool { > $enableddevices = false; > $devices = $this->get_user_devices($appname, $userid); > > foreach ($devices as $device) { > if (!$device->enable) { > continue; > } > $enableddevices = true; > break; > } > return $enableddevices; > }