Grails / Spring Security LDAP: alternate check method

Question

Hi there,

I've been wondering if there's a way to configure Spring Security LDAP plugin to perform the authentication not in the standard way but as follows:

If one is able to connect and login to the LDAP server then 
the user is authenticated. 

Read the authorization from this user's account on LDAP 
(this is probably the default behavior)

So basically instead of having the master account configured one uses the user/pass passed on by the user to actually perform the login (which if successfull allows the user to fetch the other data).

Thanks in advance!