Aug '17

Accessing a Laravel Session from Another App

Maybe a bit of a niche thing to to here, but I found myself needing to do this as part of the process of transparently transitioning a site from an older framework. In effect I had two different apps with mod_rewrite rules to determine which served which pages. Critical to this was that I needed to make sure that these pages shared authentication and session data.

To start I had to move the authentication logic into the new Laravel app, as this would become the gatekeeper and the primary source of the session data. Then for all pages being served by the old app, I came up with the following to be included in the front controller of the old app, before its own app was initialised (we’re assuming here that “LARAVEL_ROOT” has been defined as the path to the Laravel application root):

require_once LARAVEL_ROOT . '/bootstrap/autoload.php';
$app = require_once LARAVEL_ROOT . '/bootstrap/app.php';

$kernel = $app->make(Illuminate\Contracts\Http\Kernel::class);

$response = $kernel->handle(
    $request = Illuminate\Http\Request::capture()

if(!empty($_COOKIE[$app['config']['session.cookie']])) {
    $id = $app['encrypter']->decrypt($_COOKIE[$app['config']['session.cookie']]);

    if($app['auth']->check()) {

        Now I have access to the Laravel session via $app['session']->driver()
        e.g. $app['session']->driver()->get('site');

        And access to the auth logic via $app['auth']

        I can also call any registered facades too
        e.g. \Auth::user() \Request::get() etc

It’s best to to go too far off-piste here in terms of what you’re pulling out of your Laravel app, but it should give you all you need to share authentication and other critical session data.

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