C#:如何使用套接字执行 HTTP 请求?

问题描述

我正在尝试使用套接字发出 HTTP 请求.我的代码如下:

I am trying to make a HTTP request using sockets. My code is as follows:

using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
class test
{
    public static void Main(String[] args)
    {
        string hostName = "127.0.0.1";
        int hostPort = 9887;
        int response = 0;

        IPAddress host = IPAddress.Parse(hostName);
        IPEndPoint hostep = new IPEndPoint(host, hostPort);
        Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

        sock.Connect(hostep);

        string request_url = "http://127.0.0.1/register?id=application/vnd-fullphat.test&title=My%20Test%20App";
        response = sock.Send(Encoding.UTF8.GetBytes(request_url));
        response = sock.Send(Encoding.UTF8.GetBytes("
"));

        bytes = sock.Receive(bytesReceived, bytesReceived.Length, 0);
        page = page + Encoding.ASCII.GetString(bytesReceived, 0, bytes);
        Console.WriteLine(page);
        sock.Close();
    }
}

现在，当我执行上面的代码时什么也没有发生，而当我在浏览器中输入我的 request_url 时，我收到了来自 Snarl 的通知，说 Application Registered 和我得到的响应浏览器是

Now when I execute the above code nothing happens whereas when I enter my request_url in browser I get a notification from Snarl saying that Application Registered and the response I get from browser is

SNP/2.0/0/OK/556

我从代码中得到的响应是 SNP/3.0/107/BadPacket.

The response I get from my code is SNP/3.0/107/BadPacket.

那么，我的代码有什么问题.

So, what is wrong with my code.

Snarl 请求格式规范

推荐答案

必须在末尾包含 content-length 和双换行符以指示标题结束.

You must include content-length and double new line in the end to indicate end of header.

var request = "GET /register?id=application/vnd-fullphat.test&title=My%20Test%20App HTTP/1.1
" +
    "Host: 127.0.0.1
" +
    "Content-Length: 0
" +
    "
";

可以在此处找到 HTTP 1.1 规范:http://www.w3.org/Protocols/rfc2616/rfc2616.html

The HTTP 1.1 specification can be found here: http://www.w3.org/Protocols/rfc2616/rfc2616.html

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