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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
| <?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/>. | ||
|
|
||
| /** | ||
| * Return token | ||
| * @package moodlecore | ||
| * @copyright 2011 Dongsheng Cai <[email protected]> | ||
| * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later | ||
| */ | ||
|
|
||
| define('AJAX_SCRIPT', true); | ||
| define('NO_MOODLE_COOKIES', true); | ||
|
|
||
| require_once(dirname(dirname(__FILE__)) . '/config.php'); | ||
|
|
||
| $username = required_param('username', PARAM_USERNAME); | ||
| $password = required_param('password', PARAM_RAW); | ||
| $service = required_param('service', PARAM_ALPHANUMEXT); | ||
|
|
||
| echo $OUTPUT->header(); | ||
|
|
||
| if (!$CFG->enablewebservices) { | ||
| throw new moodle_exception('enablewsdescription', 'webservice'); | ||
| } | ||
| $username = trim(moodle_strtolower($username)); | ||
| if (is_restored_user($username)) { | ||
| throw new moodle_exception('restoredaccountresetpassword', 'webservice'); | ||
| } | ||
| $user = authenticate_user_login($username, $password); | ||
| if (!empty($user)) { | ||
| if (isguestuser($user)) { | ||
| throw new moodle_exception('noguest'); | ||
| } | ||
| if (empty($user->confirmed)) { | ||
| throw new moodle_exception('usernotconfirmed', 'moodle', '', $user->username); | ||
| } | ||
| // check credential expiry | ||
| $userauth = get_auth_plugin($user->auth); | ||
| if (!empty($userauth->config->expiration) and $userauth->config->expiration == 1) { | ||
| $days2expire = $userauth->password_expire($user->username); | ||
| if (intval($days2expire) < 0 ) { | ||
| throw new moodle_exception('passwordisexpired', 'webservice'); | ||
| } | ||
| } | ||
|
|
||
| // setup user session to check capability | ||
| session_set_user($user); | ||
|
|
||
| $admintokenssql = "SELECT t.* | ||
| FROM {external_tokens} t | ||
| JOIN {external_services} s | ||
| ON t.externalserviceid = s.id | ||
| WHERE s.shortname = ? | ||
| AND s.enabled = 1 | ||
| AND t.userid = ? | ||
| AND (t.validuntil = 0 OR t.validuntil IS NULL OR t.validuntil > ?) | ||
| AND t.userid != t.creatorid | ||
| ORDER BY t.timecreated ASC"; | ||
| $tokens = $DB->get_records_sql($admintokenssql, array($service, $user->id, time())); | ||
| foreach ($tokens as $key=>$admin_token) { | ||
| // remove token if its ip not in whitelist | ||
| if (isset($admin_token->iprestriction) and !address_in_subnet(getremoteaddr(), $admin_token->iprestriction)) { | ||
| unset($tokens[$key]); | ||
| } | ||
| } | ||
| // if admin created token then use the most recent created one over user created token | ||
| if (count($tokens) > 0) { | ||
| $token = array_pop($tokens); | ||
| } else { | ||
| // if no admin created tokens, try to use user created token | ||
| // NOTE user created token doesn't have valid date and ip limits | ||
| $usertokensql = "SELECT t.* | ||
| FROM {external_tokens} t | ||
| JOIN {external_services} s | ||
| ON t.externalserviceid = s.id | ||
| WHERE s.shortname = ? | ||
| AND s.enabled = 1 | ||
| AND t.userid = ? | ||
| AND t.userid = t.creatorid"; | ||
|
|
||
| $token = $DB->get_record_sql($usertokensql, array($service, $user->id)); | ||
| // create token if not exists | ||
| if (!$token) { | ||
| // This is an exception for Moodle Mobiel App | ||
| // if user doesn't have token, we will create one on the fly | ||
| // even user doesn't have createtoken permission | ||
| if ($service == MOODLE_OFFICIAL_MOBILE_SERVICE) { | ||
| if (has_capability('moodle/webservice:createmobiletoken', get_system_context())) { | ||
| // if service doesn't exist, dml will throw exception | ||
| $service_record = $DB->get_record('external_services', array('shortname'=>$service, 'enabled'=>1), '*', MUST_EXIST); | ||
| // create a new token | ||
| $token = new stdClass; | ||
| $token->token = md5(uniqid(rand(), 1)); | ||
| $token->userid = $user->id; | ||
| $token->tokentype = EXTERNAL_TOKEN_PERMANENT; | ||
| $token->contextid = get_context_instance(CONTEXT_SYSTEM)->id; | ||
| $token->creatorid = $user->id; | ||
| $token->timecreated = time(); | ||
| $token->externalserviceid = $service_record->id; | ||
| $tokenid = $DB->insert_record('external_tokens', $token); | ||
| add_to_log(SITEID, 'webservice', get_string('createtokenforuserauto', 'webservice'), '' , 'User ID: ' . $user->id); | ||
| $token->id = $tokenid; | ||
| } else { | ||
| throw new moodle_exception('cannotcreatemobiletoken', 'webservice'); | ||
| } | ||
| } else { | ||
| // will throw exception if no token found | ||
| throw new moodle_exception('invalidtoken', 'webservice'); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // log token access | ||
| $DB->set_field('external_tokens', 'lastaccess', time(), array('id'=>$token->id)); | ||
|
|
||
| add_to_log(SITEID, 'webservice', 'user request webservice token', '' , 'User ID: ' . $user->id); | ||
|
|
||
| $usertoken = new stdClass; | ||
| $usertoken->token = $token->token; | ||
| echo json_encode($usertoken); | ||
| } else { | ||
| throw new moodle_exception('usernamenotfound', 'moodle'); | ||
| } |
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