128 lines
3.1 KiB
PHP
128 lines
3.1 KiB
PHP
<?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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* Key manager class.
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*
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* @package auth_userkey
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* @copyright 2016 Dmitrii Metelkin (dmitriim@catalyst-au.net)
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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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namespace auth_userkey;
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class core_userkey_manager implements userkey_manager_interface {
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/**
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* This script script required by core create_user_key().
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*/
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const CORE_USER_KEY_MANAGER_SCRIPT = 'auth/userkey';
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/**
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* Default life time of the user key in seconds.
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*/
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const DEFAULT_KEY_LIFE_TIME_IN_SECONDS = 60;
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/**
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* Generated user key.
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*
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* @var string
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*/
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protected $userkey;
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/**
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* User id.
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*
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* @var int
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*/
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protected $userid;
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/**
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* Shows if we need restrict user key by IP.
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*
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* @var null | bool
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*/
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protected $iprestriction = null;
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/**
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* Time when user key will be expired in unix stamp format.
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*
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* @var null | string
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*/
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protected $validuntil = null;
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/**
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* Config object.
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*
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* @var \stdClass
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*/
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protected $config;
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/**
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* Constructor.
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*
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* @param $userid
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* @param \stdClass $config
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*
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* @throws \Exception If there is no user with provided userid.
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*/
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public function __construct($userid, \stdClass $config) {
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global $DB;
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if (!$DB->record_exists('user', array('id' => $userid))) {
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throw new \Exception('Invalid user id');
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}
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$this->userid = $userid;
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$this->config = $config;
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if (isset($config->iprestriction) && !empty($config->iprestriction)) {
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$this->iprestriction = getremoteaddr(null);
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}
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if (isset($config->keylifetime) && (int)$config->keylifetime > 0) {
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$this->validuntil = time() + $config->keylifetime;
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} else {
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$this->validuntil = time() + self::DEFAULT_KEY_LIFE_TIME_IN_SECONDS;
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}
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}
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/**
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* Create a user key.
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*
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* @return string Generated key.
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*/
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public function create_key() {
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$this->delete_key();
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$this->userkey = create_user_key(
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self::CORE_USER_KEY_MANAGER_SCRIPT,
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$this->userid,
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$this->userid,
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$this->iprestriction,
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$this->validuntil
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);
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return $this->userkey;
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}
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/**
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* Delete all user keys.
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*/
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public function delete_key() {
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delete_user_key(self::CORE_USER_KEY_MANAGER_SCRIPT, $this->userid);
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}
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}
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