Alawn/shadowsocks-windows
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add local

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clowwindy
2013-01-14 15:52:54 +08:00
parent 0bcff211db
commit 257a1ada1f
5 changed files with 310 additions and 6 deletions
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LICENSE
+24
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@@ -0,0 +1,24 @@
shadowsocks-csharp
Copyright (c) 2013 clowwindy
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
shadowsocks-csharp/Encryptor.cs
+4 -4
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@@ -75,16 +75,16 @@ namespace shadowsocks_csharp
}
}
public void Encrypt(byte[] buf)
public void Encrypt(byte[] buf, int length)
{
for (int i = 0; i < buf.Length; i++)
for (int i = 0; i < length; i++)
{
buf[i] = encryptTable[buf[i]];
}
}
public void Decrypt(byte[] buf)
public void Decrypt(byte[] buf, int length)
{
for (int i = 0; i < buf.Length; i++)
for (int i = 0; i < length; i++)
{
buf[i] = decryptTable[buf[i]];
}
shadowsocks-csharp/Local.cs
+278
View File
@@ -2,10 +2,288 @@
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Net;
using System.Threading;
namespace shadowsocks_csharp
{
class Local
{
private int port;
private Encryptor encryptor;
public Local(int port)
{
this.port = port;
this.encryptor = new Encryptor("barfoo!");
}
public void Start()
{
// Create a TCP/IP socket.
Socket listener = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
IPEndPoint localEndPoint = new IPEndPoint(0, port);
// Bind the socket to the local endpoint and listen for incoming connections.
listener.Bind(localEndPoint);
listener.Listen(100);
// Start an asynchronous socket to listen for connections.
Console.WriteLine("Waiting for a connection...");
listener.BeginAccept(
new AsyncCallback(AcceptCallback),
listener);
}
public void AcceptCallback(IAsyncResult ar)
{
// Get the socket that handles the client request.
Socket listener = (Socket)ar.AsyncState;
listener.BeginAccept(
new AsyncCallback(AcceptCallback),
listener);
Socket conn = listener.EndAccept(ar);
// Create the state object.
Handler handler = new Handler();
handler.connection = conn;
handler.encryptor = encryptor;
handler.Start();
//handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0,
// new AsyncCallback(ReadCallback), state);
}
}
class Handler
{
public Encryptor encryptor;
// Client socket.
public Socket remote;
public Socket connection;
// Size of receive buffer.
public const int BufferSize = 1500;
// remote receive buffer
public byte[] remoteBuffer = new byte[BufferSize];
// connection receive buffer
public byte[] connetionBuffer = new byte[BufferSize];
// Received data string.
public StringBuilder sb = new StringBuilder();
public void Start()
{
// TODO async resolving
IPHostEntry ipHostInfo = Dns.GetHostEntry("127.0.0.1");
IPAddress ipAddress = ipHostInfo.AddressList[0];
IPEndPoint remoteEP = new IPEndPoint(ipAddress, 8388);
remote = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
// Connect to the remote endpoint.
remote.BeginConnect(remoteEP,
new AsyncCallback(connectCallback), null);
}
private void connectCallback(IAsyncResult ar)
{
try
{
// Complete the connection.
remote.EndConnect(ar);
Console.WriteLine("Socket connected to {0}",
remote.RemoteEndPoint.ToString());
Console.WriteLine(Thread.CurrentThread.ManagedThreadId);
handshakeReceive();
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
private void handshakeReceive()
{
try
{
connection.BeginReceive(new byte[256], 0, 256, 0,
new AsyncCallback(handshakeReceiveCallback), null);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
private void handshakeReceiveCallback(IAsyncResult ar)
{
try
{
int bytesRead = connection.EndReceive(ar);
if (bytesRead > 0)
{
byte[] response = { 5, 0 };
connection.BeginSend(response, 0, response.Length, 0, new AsyncCallback(handshakeSendCallback), null);
}
else
{
// TODO error
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
private void handshakeSendCallback(IAsyncResult ar)
{
try
{
connection.EndSend(ar);
// +----+-----+-------+------+----------+----------+
// |VER | CMD | RSV | ATYP | DST.ADDR | DST.PORT |
// +----+-----+-------+------+----------+----------+
// | 1 | 1 | X'00' | 1 | Variable | 2 |
// +----+-----+-------+------+----------+----------+
// Skip first 3 bytes
// TODO validate
connection.BeginReceive(new byte[3], 0, 3, 0,
new AsyncCallback(handshakeReceive2Callback), null);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
private void handshakeReceive2Callback(IAsyncResult ar)
{
try
{
int bytesRead = connection.EndReceive(ar);
if (bytesRead > 0)
{
byte[] response = { 5, 0, 0, 1, 0, 0, 0, 0, 0, 0 };
connection.BeginSend(response, 0, response.Length, 0, new AsyncCallback(startPipe), null);
}
else
{
// TODO error
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
private void startPipe(IAsyncResult ar)
{
try
{
connection.EndReceive(ar);
remote.BeginReceive(remoteBuffer, 0, BufferSize, 0,
new AsyncCallback(pipeRemoteReceiveCallback), null);
connection.BeginReceive(connetionBuffer, 0, BufferSize, 0,
new AsyncCallback(pipeConnectionReceiveCallback), null);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
private void pipeRemoteReceiveCallback(IAsyncResult ar)
{
try
{
int bytesRead = remote.EndReceive(ar);
if (bytesRead > 0)
{
encryptor.Decrypt(remoteBuffer, bytesRead);
connection.BeginSend(remoteBuffer, 0, bytesRead, 0, new AsyncCallback(pipeConnectionSendCallback), null);
}
else
{
// TODO error
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
private void pipeConnectionReceiveCallback(IAsyncResult ar)
{
try
{
int bytesRead = connection.EndReceive(ar);
if (bytesRead > 0)
{
encryptor.Encrypt(connetionBuffer, bytesRead);
remote.BeginSend(connetionBuffer, 0, bytesRead, 0, new AsyncCallback(pipeRemoteSendCallback), null);
}
else
{
// TODO error
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
private void pipeRemoteSendCallback(IAsyncResult ar)
{
try
{
remote.EndSend(ar);
connection.BeginReceive(this.connetionBuffer, 0, BufferSize, 0,
new AsyncCallback(pipeConnectionReceiveCallback), null);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
private void pipeConnectionSendCallback(IAsyncResult ar)
{
try
{
connection.EndSend(ar);
remote.BeginReceive(this.remoteBuffer, 0, BufferSize, 0,
new AsyncCallback(pipeRemoteReceiveCallback), null);
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
}
}
shadowsocks-csharp/Program.cs
+1 -1
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@@ -13,7 +13,7 @@ namespace shadowsocks_csharp
[STAThread]
static void Main()
{
Test.Test1();
new Local(1081).Start();
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
shadowsocks-csharp/shadowsocks-csharp.csproj
+3 -1
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@@ -6,12 +6,14 @@
<ProductVersion>9.0.21022</ProductVersion>
<SchemaVersion>2.0</SchemaVersion>
<ProjectGuid>{8C02D2F7-7CDB-4D55-9F25-CD03EF4AA062}</ProjectGuid>
<OutputType>WinExe</OutputType>
<OutputType>Exe</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>shadowsocks_csharp</RootNamespace>
<AssemblyName>shadowsocks-csharp</AssemblyName>
<TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
<StartupObject>
</StartupObject>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<DebugSymbols>true</DebugSymbols>