CSRF ==== The *CsrfServiceProvider* provides a service for building forms in your application with the Symfony Form component. Parameters ---------- * **csrf.session_namespace** (optional): The namespace under which the token is stored in the session. Defaults to ``_csrf``. Services -------- * **csrf.token_manager**: An instance of an implementation of the `CsrfTokenManagerInterface <http://api.symfony.com/master/Symfony/Component/Security/Csrf/CsrfTokenManagerInterface.html>`_, Registering ----------- .. code-block:: php use Silex\Provider\CsrfServiceProvider; $app->register(new CsrfServiceProvider()); .. note:: Add the Symfony's `Security CSRF Component <http://symfony.com/doc/current/components/security/index.html>`_ as a dependency: .. code-block:: bash composer require symfony/security-csrf Usage ----- When the CSRF Service Provider is registered, all forms created via the Form Service Provider are protected against CSRF by default. You can also use the CSRF protection without using the Symfony Form component. If, for example, you're doing a DELETE action, create a CSRF token to use in your code:: use Symfony\Component\Security\Csrf\CsrfToken; $csrfToken = $app['csrf.token_manager']->getToken('token_id'); //'TOKEN' Then check it:: $app['csrf.token_manager']->isTokenValid(new CsrfToken('token_id', 'TOKEN'));