How to obtain a service ticket?

[t ray]

Thanks a ton! I will try this.
With this, I am thinking I will be able to just do the required calls from my NON-webapp and be able to get the user authenticated without displaying the CAS login page (since I can't from my non-webapp anyways).

Thanks.


----- Original Message ----
From: Scott Battaglia <scott.battaglia at gmail.com>
To: Yale CAS mailing list <cas at tp.its.yale.edu>
Sent: Tuesday, March 13, 2007 8:15:28 PM
Subject: Re: How to obtain a service ticket?

You can do a GET/POST and parse the response.  You would need to do the following:

1. Do a GET call to /cas/login
2. Parse the return page for the "lt" value
3. Do a POST call to /cas/login with the username, password, service and lt (you may also need the other parameters which are listed in the casLoginView.jsp)
4. Your HTTP response will be a redirect.  You will need to retrieve the service ticket from the redirect url.

Hope that helps.
-Scott


On 3/13/07, t ray <t_ray9505 at yahoo.com> wrote:
Thanks for the response.
What I didn't get from your response is this- Is doing the GET/POST and parsing the response a possible solution? My own knowledge about Spring etc is limited. So, figuring out how to create a Controller and wire it into the framework may turn out to be harder than doing a GET/POST and parsing the response. So, if it is possible to do a GET/POST and parse the response, I would like some pointers on how to do that. 
 
Thanks.


----- Original Message ----
From: Scott Battaglia < scott.battaglia at gmail.com>
To: Yale CAS mailing list <cas at tp.its.yale.edu>
Sent: Monday, March 12, 2007 8:19:22 PM 
Subject: Re: How to obtain a service ticket?

If you want to do something like that I recommend creating a different endpoint Controller that takes your parameters constructs the credentials and passes them to an instance of CentralAuthenticationService which would allow you to obtain a service ticket which you can return as the body of your response.  This gets around the whole parsing the GET and doing a POST to the normal workflow. 

-Scott


On 3/12/07, t ray <t_ray9505 at yahoo.com > wrote: 
I need to be able to authenticate a username/password combo received from a legacy NON-webapp. From reading some of the old forum messages( http://tp.its.yale.edu/pipermail/cas/2004-July/000617.html) , it seems I can do a get/post to the CAS login servlet and parse the response for a service ticket (not particularly appealing). Another method appears to be to use the ServiceTicketValidator class and call validate() with a service ticket. However, I am not sure how to get a service ticket in the first place (an unused service ticket is what I need). The documentation for CASFilter and CASValidateFilter indicate that these classes can be used to do validation but I am not sure how (there don't seem to be any validate() kind of methods on either of these 2 classes). 
 
Can someone please clarify? If I am going to use the get/post method, what is the name of the params to pass (Is ?username=xyz&password=abc ok?)
 
Thanks for your help.
 



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