Currently we have a workaround for this at our enterprise pilot project.
It is a twist, not quite pretty, but works. It goes like this: 

1. The comment authentication form is modified to provide a "username"
and "password" field. And in addition, a checkbox. 
2. When the checkbox is clicked (we call it approval for authenticating
commenter), the onclick calls a custom javascript code to append
"username" to the "name" field of the comment form. (added parenthesis
to avoid ambiguity)
3. When the commenter clicks on "post". The comment form is submitted to
the comment authenticator.
4. The authenticator then authenticates the "username" and "password"
against enterprise LDAP.
5. Then the authenticator is looking for the "username" string in "name"
field.
6. If that is found, the post is successful.

This way, the "username" that identifies the person in an organization
is recorded in Roller. The possibility of anonymous comments and spam is
removed.

However, since we do not populate everybody in Roller, it is impractical
to authenticate the commenters against Roller's user database. If I know
Acegi better (which I don't), I would define an Acegi authenticator
there, and calls that authenticator, but in my case, I hardcoded LDAP
calls into comment authenticator. Maybe somebody can figure out the
right way of doing this...

Steve

-----Original Message-----
From: Alexandre B. [mailto:[EMAIL PROTECTED] 
Sent: Friday, February 16, 2007 3:18 AM
To: [email protected]
Subject: Re: Module for user registration before posting reactions

I'm also very interested in this feature.

It's working for Wordpress, it might be a good idea to implement it into
Roller.

Allowing registration to post comment might also be a good way to avoid
spam
comments, and make sure of the identity of a poster,

Best regards,

Alexandre B.

On 2/16/07, mostjiko <[EMAIL PROTECTED]> wrote:
>
>
>
> ziconline wrote:
> >
> > Do you know if it is possible to have a registration /
authentification
> > process
> > before posting a reaction ?
> > The objective here is not to have unregistered messages and identity
> > usurpation.
> >
>
> I am interested too. comments moderation is good but not sufficient.
> But I didn't found anything not even in next releases proposals (
> http://cwiki.apache.org/confluence/display/ROLLER/Roller+Proposals
Roller
> Proposals ).
>
> Regards,
> Sergio
> --
> View this message in context:
>
http://www.nabble.com/Module-for-user-registration-before-posting-reacti
ons-tf3226571s12275.html#a8996413
> Sent from the Roller - User mailing list archive at Nabble.com.
>
>


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