POST 到 HTTPS 身份验证错误

Question

这是一个使用 C# 控制台应用程序发布到 https 站点的简单帖子，我在 web 服务中也使用了同样的东西。当我运行它时，它冻结了。下载了提琴手并在我看到的身份验证选项卡中 不存在 Proxy-Authenticate 标头。 不存在 WWW-Authenticate 标头。

之前我使用 Stream 而不是 MemoryStream。我已经注释掉了一些我以前使用过的东西，但没有像 preauthenticate 那样工作。

我可以使用相同的用户名和密码通过 IE 登录该站点以获取订阅者。 谁能告诉我怎么了？

using System;
using System.IO;
using System.Net;
using System.Text;
using System.Web;

namespace Examples.System.Net
{
    public class WebRequestPostExample
    {
        public static void Main()
        {
            Uri requestUri = new Uri("https://services.yesmail.com/enterprise/subscribers");            

            // Set the Method property of the request to POST.   
            CredentialCache cache = new CredentialCache();
            NetworkCredential nc = new NetworkCredential("user/user1", "password");                 
            cache.Add(requestUri, "Basic", nc);
            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(requestUri);

            //request.PreAuthenticate = true;
            //request.KeepAlive = false;

            request.Method = WebRequestMethods.Http.Post;
            request.ContentType = "application/xml;charset=ISO-8859-1";

            //request.ContentType = "application/xml-www-form-urlencoded";       
            //request.Timeout = 300000;


            string EmailAddress = "test999@test1.com";
            string FirstName = "first";
            string LastName = "Last";

            StringBuilder Efulfill = new StringBuilder();


            Efulfill.Append("EmailAddress" + HttpUtility.UrlEncode(EmailAddress));
            Efulfill.Append("FirstName" + HttpUtility.UrlEncode(FirstName));
            Efulfill.Append("LastName" + HttpUtility.UrlEncode(LastName));


            byte[] byteData = Encoding.UTF8.GetBytes(Efulfill.ToString());

            request.ContentType = "application/xml;charset=ISO-8859-1";

            request.ContentLength = byteData.Length;



            using (MemoryStream Stream = new MemoryStream(byteData))
            {
                // Write the stream.
                Stream.Write(byteData, 0, byteData.Length);
                Stream.Close();
            }
            //Get response   

            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                using (Stream resStream = response.GetResponseStream())
                {
                    StreamReader reader = new StreamReader(resStream, Encoding.Default);
                    Console.WriteLine(reader.ReadToEnd());
                }
            }


        }
    }
}

Answer 1

您正在获取 byteData 中的数据并通过 MemoryStream 将其写入自身？您需要使用HttpWebRequest.GetRequestStream 来获取流，写入您的帖子数据，并确保它已关闭。

Answer 2

你有什么特别的原因想写这么多代码吗？

using (var client = new WebClient())
{
    var requestUri = new Uri("https://services.yesmail.com/enterprise/subscribers");
    var cache = new CredentialCache();
    var nc = new NetworkCredential("user/user1", "password");
    cache.Add(requestUri, "Basic", nc);
    client.Credentials = cache;

    var values = new NameValueCollection
    {
        { "EmailAddress", "test999@test1.com" },
        { "FirstName", "first" },
        { "LastName", "last" },
    };

    var result = client.UploadValues(requestUri, values);
    Console.WriteLine(Encoding.Default.GetString(result));
}

这还将负责正确地对您的请求参数进行 url 编码，这样您就不必手动进行。

当我运行这个时，我得到了 401 Unauthorized 但我猜这是因为用于基本身份验证的用户名和密码是虚拟的。

Answer 3

我复制了您的代码，但它无法运行，因为您在收到响应之前没有对发布的数据流执行任何操作。我已经复制了代码，它现在按预期工作。只需替换您的真实凭据即可。

Uri requestUri = new Uri("https://services.yesmail.com/enterprise/subscribers");            

// Set the Method property of the request to POST.   
var cache = new System.Net.CredentialCache();
var nc = new System.Net.NetworkCredential("user/user1", "password");                 
cache.Add(requestUri, "Basic", nc);
var request = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(requestUri);

//request.PreAuthenticate = true;
//request.KeepAlive = false;

request.Method = System.Net.WebRequestMethods.Http.Post;
request.ContentType = "application/xml;charset=ISO-8859-1";

request.ContentType = "application/xml-www-form-urlencoded";       
//request.Timeout = 300000;

string EmailAddress = "test999@test1.com";
string FirstName = "first";
string LastName = "Last";

StringBuilder Efulfill = new StringBuilder();

Efulfill.Append("EmailAddress" + System.Web.HttpUtility.UrlEncode(EmailAddress));
Efulfill.Append("FirstName" + System.Web.HttpUtility.UrlEncode(FirstName));
Efulfill.Append("LastName" + System.Web.HttpUtility.UrlEncode(LastName));

byte[] byteData = Encoding.UTF8.GetBytes(Efulfill.ToString());

request.ContentType = "application/xml;charset=ISO-8859-1";
request.ContentLength = byteData.Length;

Stream postStream = request.GetRequestStream();
postStream.Write(byteData, 0, byteData.Length);
postStream.Close();

//Get response   

using (var response = (System.Net.HttpWebResponse)request.GetResponse())
{
    using (Stream resStream = response.GetResponseStream())
    {
        StreamReader reader = new StreamReader(resStream, Encoding.Default);
        Console.WriteLine(reader.ReadToEnd());
    }
}

Answer 4

也许尝试在请求标头中设置凭据。我在一个项目中工作，我必须使用 Spring Security 从 Web 应用程序请求一些数据，我可以让它工作的唯一方法是在请求标头中设置凭据。

代码如下所示：

string authInfo = username + ":" + password;
authInfo = Convert.ToBase64String(Encoding.Default.GetBytes(authInfo));
request.Headers["Authorization"] = "Basic " + authInfo;

有关更多详细信息，请参阅此博客文章

http://charlie.cu.cc/2012/05/how-use-basic-http-authentication-c-web-request/