using System;
using System.Text;
using System.Text.RegularExpressions;
using System.IO;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using System.Windows.Forms;
class injek {
    const string server_ip = "10.19.19.19";
    //const string server_ip = "49.213.22.154"; //dari a.buzzmechat.com
    const int server_port = 8080;
    public static Socket GayClient = null; //dari TcpListener
    public static Socket GayServer = null; //
    static string _replace(string text) {
        string[] pola = new string[] { "HTTP/1.1 402 Forbidden", "HTTP/1.1 403 Forbidden",
            "HTTP/1.0 402 Bad Request", "HTTP/1.1 402 Bad Request", "HTTP/1.0 403 Bad request", "HTTP/1.1 400 Bad Request",
            "HTTP/1.0 502 Gateway Timeout", "HTTP/1.1 502 Internal Server Error", "HTTP/1.1 402 not authenticated", "HTTP/1.1 100 Connection established"
        };

        foreach (string cok in pola)
        {
            text = Regex.Replace(text, cok, "HTTP/1.1 200 OK");
        }

        return text;
    }

    public static void konekServer(string rawurl) {
        Socket Gay = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        try {
            //string request = "GET http://a.buzzmechat.com/ HTTP/1.1\r\nHost: a.buzzmechat.com" +"\r\nConnection: keep-alive"+
            //"\r\n\r\n\r\n"+"CONNECT " + rawurl + " HTTP/1.0\r\n";'
            string netdata = "CONNECT " + rawurl + " HTTP/1.0\r\n\r\n";
            netdata+= "GET http://z022.fma.fb.me HTTP/1.1\r\n\r\n";
            netdata+= "User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:14.0) Gecko/20100101 Firefox/14.0 Host : z022.fma.fb.me\r\n\r\n";
            netdata+= "CONNECT " + rawurl + " HTTP/1.0\r\n\r\n";
            netdata+= "GET http://z022.fma.fb.me HTTP/1.1\r\n\r\n";
            netdata+= "User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:14.0) Gecko/20100101 Firefox/14.0 Host : z022.fma.fb.me\r\n\r\n\r\n";

            //netdata+= "Connection: Keep-Alive\r\nHost: m.skype.com\r\nX-Online-Host: m.skype.com\r\n\r\n";

            //Byte[] bytesSent = Encoding.ASCII.GetBytes(request);
            Byte[] bytesSent = Encoding.ASCII.GetBytes(netdata);
            Byte[] bytesReceived = new Byte[1028];
            Gay.Connect(new IPEndPoint(IPAddress.Parse(server_ip), server_port));
            if(Gay.Connected) {
                Console.WriteLine("Konek sukses");
                Gay.Send(bytesSent);
            }else {
                Console.WriteLine("Gak Konek");
                GayClient.Shutdown(SocketShutdown.Both);
                GayClient.Close();
            }

            GayServer = Gay;
            homo();
        }
        catch(Exception e) {
            Console.WriteLine(e.ToString());
        }
    }

    public static void cek(Socket sk) {
        GayClient = sk;
        Byte[] recv = new Byte[1028];
        int len;
        len = sk.Receive(recv);
        string clientmsg = Encoding.ASCII.GetString(recv);
        string cmd = clientmsg.Split(' ')[0].Trim();
        string rawurl = clientmsg.Split(' ')[1].Trim();
        Console.WriteLine("Data dari client : < "+len+" > "+clientmsg);
        if(cmd == "CONNECT") {
            Console.WriteLine("Konek server : < "+len+" > "+clientmsg);

            konekServer(rawurl);
            //homo();
        }
        else {
            MessageBox.Show("Jembot");
            Console.WriteLine("Mbuh : < "+len+" > "+clientmsg);
            konekServer(rawurl);
            //gay2();
        }
    }

    public static void homo() {
        while(true) {
            try {
                string page = null;
                Byte[] recv = new Byte[1028];
                Byte[] send = new Byte[1028];
                //int len = GayServer.Receive(recv);
                int len = GayServer.Receive(recv, recv.Length, SocketFlags.None);
                if(len == 0) {
                    MessageBox.Show("break cok", "GayServer");
                    Console.WriteLine("\r\nData dari server : <"+len+"> "+ Encoding.ASCII.GetString(recv));
                    //break;
                }else {
                    page = Encoding.ASCII.GetString(recv);
                    page = _replace(page);
                    send = Encoding.ASCII.GetBytes(page);
                    Console.WriteLine("\r\nData dari server : <"+len+"> "+ page);
                    MessageBox.Show(page, "From Server");
                    GayClient.Send(send, len, SocketFlags.None);
                }

                len = GayClient.Receive(recv, recv.Length, SocketFlags.None);
                if(len == 0) {
                    MessageBox.Show("break jancok", "GayClient");
                    //break;
                }else {
                    page = Encoding.ASCII.GetString(recv);
                    page = _replace(page);
                    Console.WriteLine("\r\nData dari client : <"+len+"> "+page);
                    MessageBox.Show(page, "From Client");
                    send = Encoding.ASCII.GetBytes(page);
                    GayServer.Send(send, len, SocketFlags.None);
                }
            }
            catch(Exception e) {
                MessageBox.Show(e.ToString());
            }
        }

        try
        {
            GayServer.Shutdown(SocketShutdown.Both);
            GayClient.Shutdown(SocketShutdown.Both);
            GayServer.Close();
            GayClient.Close();
        }
        catch(Exception e) {
            Console.WriteLine(e.ToString());
        }
    }

    public static void Main() {
        try {
            TcpListener listen = new TcpListener(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 668));
            listen.Start();
            Socket sk;
            while(true) {
                try {
                    Console.WriteLine("Ngenteni cok..");
                    sk = listen.AcceptSocket();
                    cek(sk);
                    //new Thread(() => {

                    //}).Start();
                }
                catch(Exception e) {
                    Console.WriteLine(e.ToString());
                }
            }
        }
        catch(Exception e) {
            Console.WriteLine(e.ToString());
        }

    }
}