Migrating legacy users to symfony2

Question

I\'m moving from expressionengine to symfony2 and I\'m looking for the best way to migrate the user passwords. The goal is to let legacy users log in with their existing cre

Answer 1

Figured it out!

Create a custom encoder and use FOSAdvancedEncoder bundle to select the appropriate encoder.

1. Create the encoder

    <?php

    namespace Acme\MyBundle\Security\Encoder;

    use Symfony\Component\Security\Core\Encoder\PasswordEncoderInterface;

    class LegacyEncoder implements PasswordEncoderInterface {

        public function encodePassword($raw, $salt)
        {
            // Your Custom encoder logic
            return $something 
        }

        public function isPasswordValid($encoded, $raw, $salt)
        {
            return $encoded === $this->encodePassword($raw, $salt);
        }

    }

2. Register your encoder as service

services:
    acme.legacy_encoder:
        class: Acme\MyBundle\Security\Encoder\LegacyEncoder

3. Install FOSAdvancedEncoderBundle

Look here: https://github.com/friendsofsymfony/FOSAdvancedEncoderBundle/blob/master/Resources/doc/index.md

4. Configure your encoders

In app/config.yml:

fos_advanced_encoder:
    encoders:
        FOS\UserBundle\Model\UserInterface: sha512
        legacy_encoder:
            id: acme.legacy_encoder

5. Implement the encoder aware interface in your User Class

use FOS\AdvancedEncoderBundle\Security\Encoder\EncoderAwareInterface;
use FOS\UserBundle\Entity\User as BaseUser;

class User extends BaseUser implements EncoderAwareInterface {

  ...

  public function getEncoderName() {

      if($this->islegacy()) {
          return "legacy_encoder";
      }

      return NULL;
  }

}

Remember to add a boolean field to administer if a user is a legacy user or not.

That's it.

Answer 2

Maybe the thread about exporting members from ExpressionEngine to Wordpress will help you.

I don't see any difficulties other than exporting the results from a custom query to the FOSUserBundle structure.

Important things to remember:

• As Derek Hogue greatly points out on that thread, users will most likely have to reset their passwords
• You will have to understand the both structures really well in order to correctly import data