代理基本身份验证在C＃中：HTTP 407错误 [英] Proxy Basic Authentication in C#: HTTP 407 error

问题描述

我与需要身份验证的代理，即工作，在浏览器中，如果我尝试打开一个网页就会立即要求提供信用凭证。我提供的相同的凭证在我的程序，但它失败，HTTP 407错误。

I am working with a proxy that requires authentication, i.e., in a browser if I try to open a page it will immediately ask for credentials. I supplied same credentials in my program but it fails with HTTP 407 error.

下面是我的code：

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL);

IWebProxy proxy = WebRequest.GetSystemWebProxy();
CredentialCache cc = new CredentialCache();
NetworkCredential nc = new NetworkCredential();

nc.UserName = "userName";
nc.Password = "password";
nc.Domain = "mydomain";
cc.Add("http://20.154.23.100", 8888, "Basic", nc);
proxy.Credentials = cc;
//proxy.Credentials = System.Net.CredentialCache.DefaultCredentials;
request.Proxy = proxy;
request.Proxy.Credentials = cc;
request.Credentials = cc;
request.PreAuthenticate = true;

我曾尝试一切可能的事情，但看起来像我失去了一些东西。
难道是这样，我必须做出两个请求？先用了凭据，一旦我大约需要凭据，服务器收到回音，使同样的请求凭据？

I have tried every possible thing but seem like I am missing something. Is it something like, I have to make two requests? First with out credentials and once I hear back from server about need for credentials, make same request with credentials?

推荐答案

下面是使用代理一起creds ..正确的方式

here is the correct way of using proxy along with creds..

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL);

IWebProxy proxy = request.Proxy;                    
if (proxy != null)
{
    Console.WriteLine("Proxy: {0}", proxy.GetProxy(request.RequestUri));
}
else
{
    Console.WriteLine("Proxy is null; no proxy will be used");
}

WebProxy myProxy = new WebProxy();
Uri newUri = new Uri("http://20.154.23.100:8888");
// Associate the newUri object to 'myProxy' object so that new myProxy settings can be set.
myProxy.Address = newUri;
// Create a NetworkCredential object and associate it with the 
// Proxy property of request object.
myProxy.Credentials = new NetworkCredential("userName", "password");
request.Proxy = myProxy;

感谢大家的帮助...：）

Thanks everyone for help... :)

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