Question

我正在使用HTTPS代理服务器。它应该是一个控制台应用程序。我想找一本手册或它的例子。我发现很多碎片或非工作样品。我尝试从MSND for SSLStream的例子，但没有成功。有没有人有经验或工作实例？

Answer 1

假设您使用的是普通的HTTPS代理服务器（不是MITM代理服务器），则根本不需要任何SSL / TLS代码。

所需要的只是能够解释HTTP CONNECT方法并将流量按原样转发到CONNECT请求中使用的主机和端口（例如CONNECT host.example.org:443} ）。

Answer 2

查看mentalis代理源代码
http://www.mentalis.org/soft/projects/proxy/

Answer 3

代码：

using System;
using System.Text;
using System.Net.Sockets;
using System.Net.Security;

namespace SslTcpClient
{
    public class SslTcpClient
    {
        public static void Main(string[] args)
        {
            string host = "encrypted.google.com";
            string proxy = "127.0.0.1";//host;
            int proxyPort = 8888;//443;

            byte[] buffer = new byte[2048];
            int bytes;

            // Connect socket
            TcpClient client = new TcpClient(proxy, proxyPort);
            NetworkStream stream = client.GetStream();

            // Establish Tcp tunnel
            byte[] tunnelRequest = Encoding.UTF8.GetBytes(String.Format("CONNECT {0}:443  HTTP/1.1\r\nHost: {0}\r\n\r\n", host));
            stream.Write(tunnelRequest , 0, tunnelRequest.Length);
            stream.Flush();

            // Read response to CONNECT request
            // There should be loop that reads multiple packets
            bytes = stream.Read(buffer, 0, buffer.Length);
            Console.Write(Encoding.UTF8.GetString(buffer, 0, bytes));

            // Wrap in SSL stream
            SslStream sslStream = new SslStream(stream);
            sslStream.AuthenticateAsClient(host);

            // Send request
            byte[] request = Encoding.UTF8.GetBytes(String.Format("GET https://{0}/  HTTP/1.1\r\nHost: {0}\r\n\r\n", host));
            sslStream.Write(request, 0, request.Length);
            sslStream.Flush();

            // Read response
            do
            {
                bytes = sslStream.Read(buffer, 0, buffer.Length);
                Console.Write(Encoding.UTF8.GetString(buffer, 0, bytes));
            } while (bytes != 0);

            client.Close();
            Console.ReadKey();
        }
    }
}

）

C＃中的HTTPS代理服务器

3 个答案: