Login Based on URL Querystring

Question

Is it possible to prompt a log in to authenticate based on a querystring value?

I have a site requiring authentication, except in the case when a token is passed in the querystring. A requirement is that the token users already log in to a thick client and they must only log in once. From the client they click a generated link with a token in query string to open the web page. The site must also be available to non-thick client users by opening directly in browser and authenticating via prompt.

rick schott · Accepted Answer · 2011-11-23 15:37:14Z

1

Please don't authenticate via the query string. Force a login and let the user select a context to run under.

answered Nov 23, 2011 at 15:37

rick schott

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7 Comments

riv_rec Over a year ago

Alas, my hand is forced by the customer. We would be getting an encrypted key in the query string generated from a third party app which we would use to validate against their system so they aren't prompted for log in.

rick schott Over a year ago

That's not logging in or impersonating, that is passing a token to a SSO process.

riv_rec Over a year ago

And if the key is not in the querystring, we must prompt a log in. So my question remains.

rick schott Over a year ago

You should elaborate what you are trying to do in the question. It will probably get closed being so vague.

James Johnson Over a year ago

+1: Don't know why this was downvoted, so I've taken corrective measures.

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Pleun · Accepted Answer · 2011-11-23 16:48:09Z

1

How about:

on page load you can check for the login=.

Do your check with the third party app to see if the token is correct. Afther that:

    Response.Cookies.Remove(FormsAuthentication.FormsCookieName);
    FormsAuthentication.SetAuthCookie("username", false);
    Response.Redirect("samepage.aspx");

answered Nov 23, 2011 at 16:48

Pleun

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