Symfony2: How to restrict / deny access to certain

Question

I'd like to disallow access to /login and /register if a client's IP address has been banned.

The (black-) list of banned IPs is stored in the database.

How can I solve this?

Answer 1

Use controllers events (preferred)

You can subscribe to events on registration controller.

For registration, you can subscribe to REGISTRATION_INITIALIZE event.

Here is the doc for controller events.

Overriding controller methods

The second solution is to override login and register controller methods but you will have to duplicate all code of the login/register action.

Answer 2

Since symfony 2.4 you can use the Expression Language Component in your config-files.

Now implementing a simple IP check is easy:

• create a service (i.e. access_manager) with a method (i.e. getBannedIPs()) that fetches the list of banned IPs from your storage layer
• Add an expression to your security configuration that compares the returned array against the client's IP address
• That's it.

example

# app/config/security.yml
security:
    # ...
    access_control:
        - path: ^/(login|register)$
          allow_if: "request.getClientIp() not in @=service('access_manager').getBannedIPs()"