Add generic authorization class

app/Auth/Database.php

@@ -1,49 +0,0 @@
-<?php
-
-namespace Kanboard\Auth;
-
-use Kanboard\Core\Base;
-use Kanboard\Model\User;
-use Kanboard\Event\AuthEvent;
-
-/**
- * Database authentication
- *
- * @package  auth
- * @author   Frederic Guillot
- */
-class Database extends Base
-{
-    /**
-     * Backend name
-     *
-     * @var string
-     */
-    const AUTH_NAME = 'Database';
-
-    /**
-     * Authenticate a user
-     *
-     * @access public
-     * @param  string  $username  Username
-     * @param  string  $password  Password
-     * @return boolean
-     */
-    public function authenticate($username, $password)
-    {
-        $user = $this->db
-                    ->table(User::TABLE)
-                    ->eq('username', $username)
-                    ->eq('disable_login_form', 0)
-                    ->eq('is_ldap_user', 0)
-                    ->findOne();
-
-        if (is_array($user) && password_verify($password, $user['password'])) {
-            $this->userSession->initialize($user);
-            $this->container['dispatcher']->dispatch('auth.success', new AuthEvent(self::AUTH_NAME, $user['id']));
-            return true;
-        }
-
-        return false;
-    }
-}