Re: Programmatically turn off custom errors for current request

From: Scott Allen (bitmask_at_[nospam)
Date: 06/30/04 

Date: Wed, 30 Jun 2004 11:25:54 -0400

Hi Matt:

Since no one has responded as yet I though I'd through out an idea I
had.

If you handle the Application_Error event in global.asax you might be
able to prevent the redirect with a call to ClearError. I have not
tried this, mind you, just an idea.

If you need to get "state" information from AuthenticateRequest to
Application_Error, you could use the Content.Items collection to hold
some sort of sentinal object.

HTH, 

--
Scott
http://www.OdeToCode.com
On 30 Jun 2004 05:36:11 -0700, Matt.Caton@BTInternet.com (Matt) wrote:
>Hello all,
>
>The app we are working on uses custom errors extensively to provide
>friendly error pages to users whilst logging the actual exceptions
>behind the scenes.
>
>However.... We are now having to integrate some Web services into the
>application using the existing architecture. These Web services are
>secured using Forms Authentication. Hence, we need to turn the default
>behavior of Forms Authentication (redirects to login pages, etc) into
>exceptions that can be handled by a non GUI client (ie. Web service
>consumer).
>
>Heres the problem....
>
>In the AuthenticateRequest event, we check if a secure Web service is
>being called. If so, we check for an authentication ticket in the Soap
>header. If its not there, we throw a "MissingAuthenticationTicket"
>custom exception. This gets wrapped in a SoapException and we want
>this to get passed to the client.
>
>However.... the custom error page gets called instead, redirecting the
>client to Error.aspx and logging the exception on the server. This is
>secure, but very hard to handle at the client.
>
>Anyway, what I would like to be able to do is just before throwing the
>MissingAuthenticationTicket exception, turn off custom errors for this
>request only. Hence the exception would get passed to the client as
>expected.
>
>Is there anyway to achieve this?
>
>Thanks in advance for any help,
>Regards,
>Matt

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