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using System;
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using System.Collections;
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using System.IO;
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using System.Net;
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using System.Net.Sockets;
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using System.Text;
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using System.Threading;
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namespace v2rayN.HttpProxyHandler
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{
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public class HttpWebServerB
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{
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TcpListener listener;
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bool is_active = true;
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private Stream inputStream;
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public StreamWriter outputStream;
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public String http_method;
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public String http_url;
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public String http_protocol_versionstring;
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public Hashtable httpHeaders = new Hashtable();
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private int port;
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private Func<string, string> _responderMethod;
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public HttpWebServerB(int port, Func<string, string> method)
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{
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this.port = port;
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this._responderMethod = method;
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Thread thread = new Thread(WorkThread);
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thread.IsBackground = true;
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thread.Start();
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}
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public void Stop()
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{
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//if (listener != null)
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//{
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// listener.Stop();
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// listener = null;
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//}
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}
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public void WorkThread()
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{
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listen();
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}
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private void listen()
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{
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listener = new TcpListener(IPAddress.Any, port);
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listener.Start();
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while (is_active)
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{
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TcpClient socket = listener.AcceptTcpClient();
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//HttpProcessor processor = new HttpProcessor(s, this);
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//Thread thread = new Thread(new ThreadStart(process));
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Thread thread = new Thread(new ParameterizedThreadStart(process));
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thread.Start(socket);
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//thread.Start();
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Thread.Sleep(1);
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}
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}
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private void process(object obj)
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{
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try
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{
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var socket = obj as TcpClient;
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inputStream = new BufferedStream(socket.GetStream());
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outputStream = new StreamWriter(new BufferedStream(socket.GetStream()));
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parseRequest();
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readHeaders();
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if (http_method.Equals("GET"))
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{
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handleGETRequest(socket);
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}
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outputStream.BaseStream.Flush();
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inputStream = null; outputStream = null; // bs = null;
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socket.Close();
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}
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catch (Exception ex)
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{
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}
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}
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/// <summary>
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/// 复制请求
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/// </summary>
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private void parseRequest()
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{
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String request = streamReadLine(inputStream);
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string[] tokens = request.Split(' ');
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if (tokens.Length != 3)
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{
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throw new Exception("invalid http request line");
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}
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http_method = tokens[0].ToUpper();
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http_url = tokens[1];
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http_protocol_versionstring = tokens[2];
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}
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/// <summary>
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/// 读取请求头
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/// </summary>
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private void readHeaders()
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{
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String line;
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while ((line = streamReadLine(inputStream)) != null)
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{
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if (line.Equals(""))
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{
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return;
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}
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int separator = line.IndexOf(':');
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if (separator == -1)
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{
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throw new Exception("invalid http header line: " + line);
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}
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String name = line.Substring(0, separator);
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int pos = separator + 1;
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while ((pos < line.Length) && (line[pos] == ' '))
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{
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pos++; // strip any spaces
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}
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string value = line.Substring(pos, line.Length - pos);
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httpHeaders[name] = value;
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}
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}
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private string streamReadLine(Stream inputStream)
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{
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int next_char;
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string data = "";
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while (true)
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{
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next_char = inputStream.ReadByte();
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if (next_char == '\n') { break; }
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if (next_char == '\r') { continue; }
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if (next_char == -1) { Thread.Sleep(1); continue; };
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data += Convert.ToChar(next_char);
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}
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return data;
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}
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/// <summary>
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/// 重载相应Get方法
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/// </summary>
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/// <param name="p"></param>
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private void handleGETRequest(TcpClient socket)
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{
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String executeResult = String.Empty;
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if (http_url.ToLower().Contains("/pac/"))
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{
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var address = ((IPEndPoint)socket.Client.LocalEndPoint).Address.ToString();
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string pac = _responderMethod(address);
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writeSuccess("application/x-ns-proxy-autoconfig");
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outputStream.WriteLine(pac);
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outputStream.Flush();
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return;
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}
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}
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/// <summary>
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/// 回复成功
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/// </summary>
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/// <param name="content_type"></param>
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private void writeSuccess(string content_type = "text/html")
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{
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outputStream.WriteLine("HTTP/1.0 200 OK");
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outputStream.WriteLine(String.Format("Content-Type:{0};", content_type));
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outputStream.WriteLine("Connection: close");
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outputStream.WriteLine("");
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}
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}
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}
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2dust
5 years ago