CODEWITHSUNDEEP
c#asp.net-mvc-4windows-authentication
onetwothree
onetwothree

Reputation: 682

Web application using Windows authentication can't go through proxy

I have an MVC4 application that is using Windows authentication. This application scrapes a variety of internet sites. This application is hosted in our intranet and needs to go through our corporate proxy to access the internet. Through some debugging I can see that I'm fully authenticated by user id and that I'm impersonating. My problem is that I keep receiving error The remote server returned an error: (407) Proxy Authentication Required.. I can verify that my code works because it works as expected if I hard code my credentials for the proxy.

var windowsIdentity = (WindowsIdentity) HttpContext.Current.User.Identity;
using (windowsIdentity.Impersonate())
{
    var webClient = new WebClient
        {
            Proxy = new WebProxy(PROXY)
                {
                    Credentials = CredentialCache.DefaultNetworkCredentials
                }
        };
    var str = webClient.DownloadString("http://google.com");
}

Using CredentialCache.DefaultCredentials also does not work. Why can't I impersonate myself (or whoever is accessing the site) and use that user to authenticate against the proxy?

Upvotes: 0

Views: 1706

Answers (1)

Bonga Mbombi
Bonga Mbombi

Reputation: 175

The proxy settings of the server are probably ignored. Try reading this.

Upvotes: 1

Related Questions