How To Intercept An Authentication Request In Webform
Nov 30, 2010
I have user's who are losing their data because they sit on a page too long, then are asked to log back in. I want to do the following:
1) Instead of redirecting them to a login page, I want to cancel the current request and give the user a popup dialog box to login with.
2) When the login is successful, I want the user to be sent back to their form, with all data intact. (Even better if the request could go through without sending them back to that form, but this is optional).
How can I intercept these authentication requests, and present the user with a popup login?
I am using ASP.net forms authentication.
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May 28, 2010
I would like to generate a 401 page if the user does not have the right permission.
The user requests a url and is redirected to the login page (I have deny all anonymous in web.config). The user logs in successfully and is redirected to the original url. However, upon permission check, it is determined that the user does not have the required permission, so I would like to generate a 401. But Forms Authentication always handles 401 and redirects the user to the login page.
To me, this isn't correct. The user has already authenticated, the user just does not have the proper authorization.
In other scenarios, such as in ajax or REST service scenario, I definitely do not want the login page - I need the proper 401 page.
So far, I've tried custom Authorize filter to return ViewResult with 401 but didn't work. I then tried a normal Action Filter, overriding OnActionExecuting, which did not work either.
What I was able to do is handle an event in global.asax, PostRequestHandlerExecute, and check for the permission then write out directly to response:
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[code]....
First of all, I'm not even sure if that is the right event or the place in the pipeline to do that.
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May 10, 2010
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May 31, 2010
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Feb 10, 2010
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Mar 30, 2011
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Nov 8, 2010
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Mar 10, 2011
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Event message: Forms authentication failed for the request. Reason: The ticket supplied has expired.
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Apr 21, 2010
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Oct 15, 2010
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[Code]....
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[Code]....
The service just ignores them.
When I try it this way:
[Code]....
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Event code: 4005
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Event ID:
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Event detail code: 50202.....
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Nov 12, 2010
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[URL]
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