CodeIgniter 4 AuthExtension

Installation

Step 1)

composer require 4spacesdk/ci4authextension

Step 2)

Create new file app/Config/AuthExtension.php and add this content

<?php namespace Config;

use CodeIgniter\Config\BaseConfig;

class AuthExtension extends BaseConfig {

    /*
     * Specify the database group
     */
    public string $dbGroupName = 'default';

    /*
     * If true, AuthExtension will extend routes with default endpoints
     * Check CI4AuthExtension/Hooks/PreController.php for details
     */
    public bool $autoRoute = true;

    /*
     * OAuth Access token lifetime in seconds
     */
    public int $oauthAccessTokenLifeTime = 15 * MINUTE;

    /*
     * OAuth Access token lifetime in seconds
     */
    public int $oauthRefreshTokenLifeTime = 7 * DAY;

    /*
     * Path to login page
     */
    public string $loginPage = '/login';

}

Step 3)

Add this line to your application/Config/Events.php file

Events::on('pre_system', [\AuthExtension\Hooks\PreController::class, 'execute']);
Events::on('pre_command', [\AuthExtension\Hooks\PreController::class, 'execute']);

Step 4)

Add migration file and add this line to up(): \AuthExtension\Migration\Setup::migrateUp(); and this line to down(): \AuthExtension\Migration\Setup::migrateDown();.

Step 5)

Seed new users, ex:

$user = new User();
$user->first_name = 'Firstname';
$user->last_name = 'Lastname';
$user->username = '[email protected]';
$user->password = password_hash('secret password', PASSWORD_BCRYPT);
$user->save();

Step 6)

Add a controller and view for simple username/password login. You can either use your own check login algorithm or use $loginResponse = AuthExtension::login($username, $password); which will return one of these constants and set user_id in session storage.

class LoginResponse {
    const Success           = 'Success';
    const RenewPassword     = 'RenewPassword';
    const WrongPassword     = 'WrongPassword';
    const UnknownUser       = 'UnknownUser';
}

Authorize with session

$user = AuthExtension::checkSession();
$user is either FALSE or the authorized User.

Authorize with OAuth2

If you enable autoRoute in Config you can authorize by calling /check with access_token as query parameter or header.
Check AuthExtension\Hooks\PreController for more routes.