[rt-users] R: R: Custom authentication script fails with > ExternalAuthPriority not defined, please check your configuration file

Scotto Alberto al.scotto at reply.it
Tue Jan 1 13:43:08 EST 2013

Hi Thomas.

First of all, Thank you for your feedback!

You are right.
Actually, in my mind, that function was supposed to have input validated by some other methods (around the View layer), as a precondition.

Now, I think it's a matter of design.
- to keep things strictly separate (only the high-level class charged with the input validation)
- to have validation in both layers (maybe with a strong validation in the high-level class and a minimum validation in the function auth_rt)

Don't know what is the best. I think using preconditions is a strong practice that gives you freedom and lets you avoid duplicate checks. Actually, the preconditions must be documented...

So I think that I may go for documenting the precondition in the wiki page (also for simplicity).

What do you think?


PS: Happy New Year :)

Da: rt-users-bounces at lists.bestpractical.com [rt-users-bounces at lists.bestpractical.com] per conto di Thomas Sibley [trs at bestpractical.com]
Inviato: lunedì 31 dicembre 2012 22.44
A: rt-users at lists.bestpractical.com
Oggetto: Re: [rt-users] R: Custom authentication script fails with > ExternalAuthPriority not defined, please check your configuration file

On 12/27/2012 04:57 PM, Scotto Alberto wrote:
> I've just shared my script on rt wikia :)
> http://requesttracker.wikia.com/wiki/Rt-auth-user
> Any improvements are welcome.
> For example, I suspect there's a better way to do it (it =
> authenticating against external auths first, and then the local RT's
> DB). I'd expect to call only DoAuth, and then it should fall to
> IsPassword by itself, shouldn't it?

Your PHP example has a serious security flaw in it since you use
unescaped user input in the call to shell_exec().  Any username which
passes your check may be followed by a password which runs arbitrary
shell code on your server.

Alberto Scotto

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al.scotto at reply.it


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