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我想在单击链接时登录站点，然后使用登录会话将浏览器重定向到那里。我遇到了一些麻烦，这是我尝试过的：

首先，我从登录站点获取会话 cookie：

CookieContainer cookies= new CookieContainer();
HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create("http://someuri.com");
myHttpWebRequest.CookieContainer = cookies;
HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
myHttpWebResponse.Close();

然后我发布到登录页面进行登录：

HttpWebRequest getRequest = (HttpWebRequest)WebRequest.Create("http://signInURL.com");
getRequest.CookieContainer = cookies;
getRequest.Method = WebRequestMethods.Http.Post;
getRequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2";
getRequest.AllowWriteStreamBuffering = true;
getRequest.ProtocolVersion = HttpVersion.Version11;
getRequest.AllowAutoRedirect = true;
getRequest.ContentType = "application/x-www-form-urlencoded";

byte[] byteArray = Encoding.ASCII.GetBytes(PostParameterStringWithSignInInfo);
getRequest.ContentLength = byteArray.Length;
Stream newStream = getRequest.GetRequestStream();
newStream.Write(byteArray, 0, byteArray.Length);
newStream.Close();

HttpWebResponse getResponse = (HttpWebResponse)getRequest.GetResponse();

然后我想我需要将cookies设置给客户端：

CookieCollection cooki = getRequest.CookieContainer.GetCookies(new Uri("http://someUri.com"));
for(int i = 0; i < cooki.Count; i++)
{
    Cookie c = cooki[i];
    Response.Cookies.Add(new HttpCookie(c.Name, c.Value));
}

然后重定向到您最终登录的位置：

Response.Redirect("http://URLwhenBeingSignedIn.com");

这不起作用。重定向时，我仍然注销。

尝试使用 Fiddler 执行此操作并成功登录并被重定向：

获取会话 cookie：

GET / HTTP/1.1
Content-type: application/x-www-form-urlencoded
Host: someuri.com

发布到登录页面以进行登录：

POST /signIn HTTP/1.1
Accept: text/html, application/xhtml+xml, */*
Referer: http://someuri.com
Accept-Language: en-GB,en;q=0.7,tr;q=0.3
User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
Connection: Keep-Alive
Content-Length: 90
DNT: 1
Host: signInURL.com
Pragma: no-cache
Cookie: JSESSIONID=fromBefore; Cookie2=fromBefore

PostParameterStringWithSignInInfo

也许有一种比我现在想到的更简单的方法，您可以看到有效的提琴手请求，如果是这样，我很高兴看到它。

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