Hooking into bus dispatch commands?

AlexanderOMara

Hi, I'm working on an extension, and I've almost got everything done. There's just one part I haven't been able to figure out how to hook into in a nice way.

I'd like to add some additional logic in the ForgotPasswordController code:

    public function handle(ServerRequestInterface $request)
    {
        $email = array_get($request->getParsedBody(), 'email');

        $this->bus->dispatch(
            new RequestPasswordReset($email)
        );

        return new EmptyResponse;
    }

I see it triggers a bus command (not sure if correct terminology) which is handled in RequestPasswordResetHandler however I cannot find a single other reference to RequestPasswordResetHandler in the code so I'm not sure exactly how this happens.

Is there a good way to hook into this process? I know I could define a class in the same namespace to override it so it never gets autoloaded, but that's a nasty hack I would really like to avoid.

AlexanderOMara

Aha, I've found a fairly elegant way to hook into it. In case anyone else faces this issue, here's the basics:

bootstrap.php:


use Illuminate\Contracts\Bus\Dispatcher as Bus;

return function(Dispatcher $events, Bus $bus) {
	$bus->pipeThrough([Listener\AddRequestPasswordReset::class]);
};

AddRequestPasswordReset.php


use Flarum\Core\Command\RequestPasswordReset;
use Flarum\Core\Repository\UserRepository;

class AddRequestPasswordReset {

	/**
	 * @var UserRepository
	 */
	protected $users;

	/**
	 * @param UserRepository $users
	 */
	public function __construct(UserRepository $users) {
		$this->users = $users;
	}

	/**
	 * @param RequestPasswordReset $command
	 * @param Closure $next
	 */
	public function handle($command, $next) {
		// Check if the command we want to hook.
		if ($command instanceof RequestPasswordReset) {
			$user = $this->users->findByEmail($command->email);

			// Do stuff with $user.
		}
		return $next($command);
	}
}