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POMVC3 AntiForgeryToken Issue
 

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  1. POMVC3 AntiForgeryToken Issue
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    <p>I am trying to implement AntiForgeryToken for my MVC3 Application. I am having a problem with AntiForgeryToken after setting FormAuthentication cookie. Here is a simple example which explains my problem. </p> <p>I have home controller with following action methods:</p> <pre><code>public class HomeController : Controller { public ActionResult Logon() { return View(); } [HttpPost] [ValidateAntiForgeryToken] public ActionResult Logon(string userName, string password) { FormsAuthentication.SetAuthCookie(userName, false); return View("About"); } [HttpPost] [ValidateAntiForgeryToken] public ActionResult About(FormCollection form) { return View("PageA"); } } </code></pre> <p>And here is my Logon and About views:</p> <p>Logon.cshtml:</p> <pre><code> @using (Html.BeginForm("Logon", "Home")) { @Html.AntiForgeryToken() &lt;label&gt; UserName :&lt;/label&gt; &lt;input name = "userName" type="text"/&gt; &lt;br /&gt; &lt;label&gt; Password :&lt;/label&gt; &lt;input name = "password" type="password"/&gt; &lt;br /&gt; &lt;br /&gt; &lt;input type="submit" value="LogOn" /&gt; } </code></pre> <p>About.cshtml</p> <pre><code>@using (Html.BeginForm("About", "Home")) { @Html.AntiForgeryToken() &lt;p&gt; This is conent of page About&lt;/p&gt; &lt;input name = "moreInfo" type="text"/&gt; &lt;input type="submit" value="SubmitAbout" /&gt; } </code></pre> <p>I have no problem on "Logon" post method. It is validating the antiforgerytoken and rendering About view. Interestingly, when I do post on "About" view I am getting error "A required anti-forgery token was not supplied or was invalid"</p> <p>could some one point out what I am doing wrong here?</p> <p>Appreciate your help.</p>
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    1. COWAG: in Logon return a RedirectToAction instead of returning a View and add a HttpGet version of About. [edit] Actually, I think the issue is that you don't have a Get version of About without the Validate attribute.
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    2. COI see nothing wrong with your code. Is there anything else to consider? Can you ensure no AJAX is being used? Can you verify the POST values by debugging or using Firebug?
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      1. USScott Rippey
    3. CO@Will: Thanks for your comment. providing Get version of About will enable the user to get the page via url after authentication (www.mydomain.com\About) My application have business rules which states not to allow the page via url. (it works if I do that, but I cannot do the same for my application)
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