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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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* Auto-login end-point, a user can be fully authenticated in the site providing a valid key.
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*
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* @package tool_mobile
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* @copyright 2016 Juan Leyva
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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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require_once(__DIR__ . '/../../../config.php');
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$userid = required_param('userid', PARAM_INT); // The user id the key belongs to (for double-checking).
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$key = required_param('key', PARAM_ALPHANUMEXT); // The key generated by the tool_mobile_external::get_autologin_key() external function.
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$urltogo = optional_param('urltogo', $CFG->wwwroot, PARAM_LOCALURL); // URL to redirect.
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$urltogo = $urltogo ?: $CFG->wwwroot;
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$context = context_system::instance();
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$PAGE->set_context($context);
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// Check if the user is already logged-in.
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if (isloggedin() and !isguestuser()) {
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delete_user_key('tool_mobile', $userid);
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if ($USER->id == $userid) {
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redirect($urltogo);
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} else {
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throw new moodle_exception('alreadyloggedin', 'error', '', format_string(fullname($USER)));
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}
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}
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tool_mobile\api::check_autologin_prerequisites($userid);
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// Validate and delete the key.
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$key = validate_user_key($key, 'tool_mobile', null);
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delete_user_key('tool_mobile', $userid);
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// Double check key belong to user.
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if ($key->userid != $userid) {
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throw new moodle_exception('invalidkey');
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}
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// Key validated, now require an active user: not guest, not suspended.
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$user = core_user::get_user($key->userid, '*', MUST_EXIST);
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core_user::require_active_user($user, true, true);
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// Do the user log-in.
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if (!$user = get_complete_user_data('id', $user->id)) {
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throw new moodle_exception('cannotfinduser', '', '', $user->id);
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}
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complete_user_login($user);
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\core\session\manager::apply_concurrent_login_limit($user->id, session_id());
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redirect($urltogo);
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