Update CHANGES and bump version

Use job objects with SIP003 plugin to avoid lingering processes if app is killed

CHANGES

@@ -1,3 +1,15 @@
+4.0.6 2017-09-09
+- SIP002 support
+- SIP003 support
+
+4.0.5 2017-08-09
+- Fix crash when user-wininet.json fail to parse. (#1178)
+- Bug fixes and improvements.
+
+4.0.4 2017-06-01
+- Save user wininet settings as user-wininet.json
+- Improve performance of aes-256-gcm
+
 4.0.2 2017-05-19
 - Fix legacy key derivation
 - Bug fixes and improvements

README.md

@@ -13,11 +13,16 @@ Shadowsocks for Windows
 4. Supports HTTP proxy
 5. Supports server auto switching
 6. Supports UDP relay (see Usage)
+7. Supports plugins
 
 #### Download
 
 Download the [latest release].
 
+#### Requirements
+
+Microsoft [.NET Framework 4.6.2] or higher. 
+
 #### Basic
 
 1. Find Shadowsocks icon in the notification tray
@@ -54,11 +59,17 @@ If you want to manage multiple servers using other tools like SwitchyOmega,
 you can start multiple Shadowsocks instances. To avoid configuration conflicts,
 copy Shadowsocks to a new directory and choose a different local port.
 
+#### Plugins
+
+If you would like to connect to server via a plugin, please set the plugin's
+path (relative or absolute) on Edit Servers form.
+Note: Forward Proxy will not be used while a plugin is enabled.
+
 #### Global hotkeys
 
 Hotkeys are NOT registered automatically. You should re-register all hotkeys after
 restarting Shadowsocks. If you are using multiple instances of Shadowsocks,
-you must set different key combination for other instances.
+you must set different key combination for each instance.
 
 ##### How to input?
 
@@ -98,11 +109,12 @@ Please visit [Servers] for more information.
 GPLv3
 
 
-[Appveyor]:       https://ci.appveyor.com/project/wongsyrone/shadowsocks-windows-yqdou
-[Build Status]:   https://ci.appveyor.com/api/projects/status/yieb7lo96irmuc28/branch/master?svg=true
+[Appveyor]:       https://ci.appveyor.com/project/celeron533/shadowsocks-windows
+[Build Status]:   https://ci.appveyor.com/api/projects/status/tfw57q6eecippsl5/branch/master?svg=true
 [latest release]: https://github.com/shadowsocks/shadowsocks-csharp/releases
 [GFWList]:        https://github.com/gfwlist/gfwlist
 [Servers]:        https://github.com/shadowsocks/shadowsocks/wiki/Ports-and-Clients#linux--server-side
 [中文说明]:       https://github.com/shadowsocks/shadowsocks-windows/wiki/Shadowsocks-Windows-%E4%BD%BF%E7%94%A8%E8%AF%B4%E6%98%8E
+[.NET Framework 4.6.2]: https://www.microsoft.com/en-US/download/details.aspx?id=53344
 [Visual Studio 2015]: https://www.visualstudio.com/downloads/
-[.NET Framework 4.6.2 Developer Pack]: https://www.microsoft.com/download/details.aspx?id=53321
+[.NET Framework 4.6.2 Developer Pack]: https://www.microsoft.com/download/details.aspx?id=53321

shadowsocks-csharp/Controller/Service/Sip003Plugin.cs

@@ -0,0 +1,140 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Net;
+using System.Net.Sockets;
+using System.Reflection;
+using Shadowsocks.Model;
+using Shadowsocks.Util.ProcessManagement;
+
+namespace Shadowsocks.Controller.Service
+{
+    // https://github.com/shadowsocks/shadowsocks-org/wiki/Plugin
+    public sealed class Sip003Plugin : IDisposable
+    {
+        public IPEndPoint LocalEndPoint { get; private set; }
+        public int ProcessId => _started ? _pluginProcess.Id : 0;
+
+        private readonly object _startProcessLock = new object();
+        private readonly Job _pluginJob;
+        private readonly Process _pluginProcess;
+        private bool _started;
+        private bool _disposed;
+
+        public static Sip003Plugin CreateIfConfigured(Server server)
+        {
+            if (server == null)
+            {
+                throw new ArgumentNullException(nameof(server));
+            }
+
+            if (string.IsNullOrWhiteSpace(server.plugin))
+            {
+                return null;
+            }
+
+            return new Sip003Plugin(server.plugin, server.plugin_opts, server.server, server.server_port);
+        }
+
+        private Sip003Plugin(string plugin, string pluginOpts, string serverAddress, int serverPort)
+        {
+            if (plugin == null) throw new ArgumentNullException(nameof(plugin));
+            if (string.IsNullOrWhiteSpace(serverAddress))
+            {
+                throw new ArgumentException("Value cannot be null or whitespace.", nameof(serverAddress));
+            }
+            if ((ushort)serverPort != serverPort)
+            {
+                throw new ArgumentOutOfRangeException("serverPort");
+            }
+
+            var appPath = Path.GetDirectoryName(new Uri(Assembly.GetExecutingAssembly().GetName().CodeBase).LocalPath);
+
+            _pluginProcess = new Process
+            {
+                StartInfo = new ProcessStartInfo
+                {
+                    FileName = plugin,
+                    UseShellExecute = false,
+                    CreateNoWindow = true,
+                    ErrorDialog = false,
+                    WindowStyle = ProcessWindowStyle.Hidden,
+                    WorkingDirectory = appPath ?? Environment.CurrentDirectory,
+                    Environment =
+                    {
+                        ["SS_REMOTE_HOST"] = serverAddress,
+                        ["SS_REMOTE_PORT"] = serverPort.ToString(),
+                        ["SS_PLUGIN_OPTIONS"] = pluginOpts
+                    }
+                }
+            };
+
+            _pluginJob = new Job();
+        }
+
+        public bool StartIfNeeded()
+        {
+            if (_disposed)
+            {
+                throw new ObjectDisposedException(GetType().FullName);
+            }
+
+            lock (_startProcessLock)
+            {
+                if (_started && !_pluginProcess.HasExited)
+                {
+                    return false;
+                }
+
+                var localPort = GetNextFreeTcpPort();
+                LocalEndPoint = new IPEndPoint(IPAddress.Loopback, localPort);
+
+                _pluginProcess.StartInfo.Environment["SS_LOCAL_HOST"] = LocalEndPoint.Address.ToString();
+                _pluginProcess.StartInfo.Environment["SS_LOCAL_PORT"] = LocalEndPoint.Port.ToString();
+                _pluginProcess.Start();
+                _pluginJob.AddProcess(_pluginProcess.Handle);
+                _started = true;
+            }
+
+            return true;
+        }
+
+        static int GetNextFreeTcpPort()
+        {
+            var l = new TcpListener(IPAddress.Loopback, 0);
+            l.Start();
+            int port = ((IPEndPoint)l.LocalEndpoint).Port;
+            l.Stop();
+            return port;
+        }
+
+        public void Dispose()
+        {
+            if (_disposed)
+            {
+                return;
+            }
+
+            try
+            {
+                if (!_pluginProcess.HasExited)
+                {
+                    _pluginProcess.Kill();
+                    _pluginProcess.WaitForExit();
+                }
+            }
+            catch (Exception) { }
+            finally
+            {
+                try
+                {
+                    _pluginProcess.Dispose();
+                    _pluginJob.Dispose();
+                }
+                catch (Exception) { }
+
+                _disposed = true;
+            }
+        }
+    }
+}

shadowsocks-csharp/Controller/Service/TCPRelay.cs

@@ -570,7 +570,15 @@ namespace Shadowsocks.Controller
                 // Setting up proxy
                 IProxy remote;
                 EndPoint proxyEP = null;
-                if (_config.proxy.useProxy)
+                EndPoint serverEP = SocketUtil.GetEndPoint(_server.server, _server.server_port);
+                EndPoint pluginEP = _controller.GetPluginLocalEndPointIfConfigured(_server);
+
+                if (pluginEP != null)
+                {
+                    serverEP = pluginEP;
+                    remote = new DirectConnect();
+                }
+                else if (_config.proxy.useProxy)
                 {
                     switch (_config.proxy.proxyType)
                     {
@@ -607,7 +615,7 @@ namespace Shadowsocks.Controller
                 proxyTimer.Enabled = true;
 
                 proxyTimer.Session = session;
-                proxyTimer.DestEndPoint = SocketUtil.GetEndPoint(_server.server, _server.server_port);
+                proxyTimer.DestEndPoint = serverEP;
                 proxyTimer.Server = _server;
 
                 _proxyConnected = false;

shadowsocks-csharp/Controller/Service/UpdateChecker.cs

@@ -24,7 +24,7 @@ namespace Shadowsocks.Controller
         public string LatestVersionLocalName;
         public event EventHandler CheckUpdateCompleted;
 
-        public const string Version = "4.0.2";
+        public const string Version = "4.0.6";
 
         private class CheckUpdateTimer : System.Timers.Timer
         {

shadowsocks-csharp/Controller/ShadowsocksController.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.IO;
 using System.Net;
@@ -14,6 +15,8 @@ using Shadowsocks.Model;
 using Shadowsocks.Properties;
 using Shadowsocks.Util;
 using System.Linq;
+using Shadowsocks.Controller.Service;
+using Shadowsocks.Proxy;
 
 namespace Shadowsocks.Controller
 {
@@ -33,6 +36,8 @@ namespace Shadowsocks.Controller
         private StrategyManager _strategyManager;
         private PrivoxyRunner privoxyRunner;
         private GFWListUpdater gfwListUpdater;
+        private readonly ConcurrentDictionary<Server, Sip003Plugin> _pluginsByServer;
+
         public AvailabilityStatistics availabilityStatistics = AvailabilityStatistics.Instance;
         public StatisticsStrategyConfiguration StatisticsConfiguration { get; private set; }
 
@@ -44,8 +49,6 @@ namespace Shadowsocks.Controller
 
         private bool stopped = false;
 
-        private bool _systemProxyIsDirty = false;
-
         public class PathEventArgs : EventArgs
         {
             public string Path;
@@ -81,6 +84,7 @@ namespace Shadowsocks.Controller
             _config = Configuration.Load();
             StatisticsConfiguration = StatisticsStrategyConfiguration.Load();
             _strategyManager = new StrategyManager(this);
+            _pluginsByServer = new ConcurrentDictionary<Server, Sip003Plugin>();
             StartReleasingMemory();
             StartTrafficStatistics(61);
         }
@@ -146,6 +150,31 @@ namespace Shadowsocks.Controller
             return GetCurrentServer();
         }
 
+        public EndPoint GetPluginLocalEndPointIfConfigured(Server server)
+        {
+            var plugin = _pluginsByServer.GetOrAdd(server, Sip003Plugin.CreateIfConfigured);
+            if (plugin == null)
+            {
+                return null;
+            }
+
+            try
+            {
+                if (plugin.StartIfNeeded())
+                {
+                    Logging.Info(
+                        $"Started SIP003 plugin for {server.Identifier()} on {plugin.LocalEndPoint} - PID: {plugin.ProcessId}");
+                }
+            }
+            catch (Exception ex)
+            {
+                Logging.Error("Failed to start SIP003 plugin: " + ex.Message);
+                throw;
+            }
+
+            return plugin.LocalEndPoint;
+        }
+
         public void SaveServers(List<Server> servers, int localPort)
         {
             _config.configs = servers;
@@ -261,6 +290,7 @@ namespace Shadowsocks.Controller
             {
                 _listener.Stop();
             }
+            StopPlugins();
             if (privoxyRunner != null)
             {
                 privoxyRunner.Stop();
@@ -272,6 +302,15 @@ namespace Shadowsocks.Controller
             Encryption.RNG.Close();
         }
 
+        private void StopPlugins()
+        {
+            foreach (var serverAndPlugin in _pluginsByServer)
+            {
+                serverAndPlugin.Value?.Dispose();
+            }
+            _pluginsByServer.Clear();
+        }
+
         public void TouchPACFile()
         {
             string pacFilename = _pacServer.TouchPACFile();
@@ -299,13 +338,41 @@ namespace Shadowsocks.Controller
         public static string GetQRCode(Server server)
         {
             string tag = string.Empty;
-            string parts = $"{server.method}:{server.password}@{server.server}:{server.server_port}";
-            string base64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(parts));
-            if(!server.remarks.IsNullOrEmpty())
+            string url = string.Empty;
+
+            if (string.IsNullOrWhiteSpace(server.plugin))
+            {
+                // For backwards compatiblity, if no plugin, use old url format
+                string parts = $"{server.method}:{server.password}@{server.server}:{server.server_port}";
+                string base64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(parts));
+                url = base64;
+            }
+            else
+            {
+                // SIP002
+                string parts = $"{server.method}:{server.password}";
+                string base64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(parts));
+                string websafeBase64 = base64.Replace('+', '-').Replace('/', '_').TrimEnd('=');
+
+                string pluginPart = server.plugin;
+                if (!string.IsNullOrWhiteSpace(server.plugin_opts))
+                {
+                    pluginPart += ";" + server.plugin_opts;
+                }
+
+                url = string.Format(
+                    "{0}@{1}:{2}/?plugin={3}",
+                    websafeBase64,
+                    HttpUtility.UrlEncode(server.server, Encoding.UTF8),
+                    server.server_port,
+                    HttpUtility.UrlEncode(pluginPart, Encoding.UTF8));
+            }
+
+            if (!server.remarks.IsNullOrEmpty())
             {
                 tag = $"#{HttpUtility.UrlEncode(server.remarks, Encoding.UTF8)}";
             }
-            return $"ss://{base64}{tag}";
+            return $"ss://{url}{tag}";
         }
 
         public void UpdatePACFromGFWList()
@@ -423,6 +490,8 @@ namespace Shadowsocks.Controller
 
         protected void Reload()
         {
+            StopPlugins();
+
             Encryption.RNG.Reload();
             // some logic in configuration updated the config when saving, we need to read it again
             _config = Configuration.Load();
@@ -465,6 +534,7 @@ namespace Shadowsocks.Controller
                     strategy.ReloadServers();
                 }
 
+                StartPlugins();
                 privoxyRunner.Start(_config);
 
                 TCPRelay tcpRelay = new TCPRelay(this, _config);
@@ -502,6 +572,15 @@ namespace Shadowsocks.Controller
             Utils.ReleaseMemory(true);
         }
 
+        private void StartPlugins()
+        {
+            foreach (var server in _config.configs)
+            {
+                // Early start plugin processes
+                GetPluginLocalEndPointIfConfigured(server);
+            }
+        }
+
         protected void SaveConfig(Configuration newConfig)
         {
             Configuration.Save(newConfig);
@@ -510,20 +589,7 @@ namespace Shadowsocks.Controller
 
         private void UpdateSystemProxy()
         {
-            if (_config.enabled)
-            {
-                SystemProxy.Update(_config, false, _pacServer);
-                _systemProxyIsDirty = true;
-            }
-            else
-            {
-                // only switch it off if we have switched it on
-                if (_systemProxyIsDirty)
-                {
-                    SystemProxy.Update(_config, false, _pacServer);
-                    _systemProxyIsDirty = false;
-                }
-            }
+            SystemProxy.Update(_config, false, _pacServer);
         }
 
         private void pacServer_PACFileChanged(object sender, EventArgs e)

shadowsocks-csharp/Data/ja.txt

@@ -50,6 +50,8 @@ Server Addr=サーバーアドレス
 Server Port=サーバーポート
 Password=パスワード
 Encryption=暗号化
+Plugin=プラグイン
+Plugin Options=プラグインのオプション
 Proxy Port=プロキシポート
 Remarks=付記
 Timeout(Sec)=タイムアウト (秒)
@@ -66,6 +68,7 @@ Use Proxy=プロキシを利用する
 Proxy Type=プロキシの種類
 Proxy Addr=プロキシアドレス
 Proxy Port=プロキシポート
+If server has a plugin, proxy will not be used=サーバーにプラグインがある場合、プロキシは利用されません
 
 # Log Form
 

shadowsocks-csharp/Data/zh_CN.txt

@@ -50,6 +50,8 @@ Server Addr=服务器地址
 Server Port=服务器端口
 Password=密码
 Encryption=加密
+Plugin=插件
+Plugin Options=插件选项
 Proxy Port=代理端口
 Remarks=备注
 Timeout(Sec)=超时(秒)
@@ -66,6 +68,7 @@ Use Proxy=使用代理
 Proxy Type=代理类型
 Proxy Addr=代理地址
 Proxy Port=代理端口
+If server has a plugin, proxy will not be used=若服务器含有插件，代理将不被使用
 
 # Log Form
 

shadowsocks-csharp/Data/zh_TW.txt

@@ -50,6 +50,8 @@ Server Addr=伺服器位址
 Server Port=伺服器連接埠
 Password=密碼
 Encryption=加密
+Plugin=插件
+Plugin Options=插件選項
 Proxy Port=Proxy 連接埠
 Remarks=註解
 Timeout(Sec)=逾時 (秒)
@@ -66,6 +68,7 @@ Use Proxy=使用 Proxy
 Proxy Type=Proxy 類型
 Proxy Addr=Proxy 位址
 Proxy Port=Proxy 連接埠
+If server has a plugin, proxy will not be used=若伺服器含有插件，Proxy 將不被使用
 
 # Log Form
 

shadowsocks-csharp/Encryption/AEAD/AEADSodiumEncryptor.cs

@@ -10,6 +10,7 @@ namespace Shadowsocks.Encryption.AEAD
         : AEADEncryptor, IDisposable
     {
         private const int CIPHER_CHACHA20IETFPOLY1305 = 1;
+        private const int CIPHER_AES256GCM = 2;
 
         private byte[] _sodiumEncSubkey;
         private byte[] _sodiumDecSubkey;
@@ -24,6 +25,7 @@ namespace Shadowsocks.Encryption.AEAD
         private static Dictionary<string, EncryptorInfo> _ciphers = new Dictionary<string, EncryptorInfo>
         {
             {"chacha20-ietf-poly1305", new EncryptorInfo(32, 32, 12, 16, CIPHER_CHACHA20IETFPOLY1305)},
+            {"aes-256-gcm", new EncryptorInfo(32, 32, 12, 16, CIPHER_AES256GCM)},
         };
 
         public static List<string> SupportedCiphers()
@@ -63,6 +65,13 @@ namespace Shadowsocks.Encryption.AEAD
                         null, _encNonce,
                         _sodiumEncSubkey);
                     break;
+                case CIPHER_AES256GCM:
+                    ret = Sodium.crypto_aead_aes256gcm_encrypt(ciphertext, ref encClen,
+                        plaintext, (ulong)plen,
+                        null, 0,
+                        null, _encNonce,
+                        _sodiumEncSubkey);
+                    break;
                 default:
                     throw new System.Exception("not implemented");
             }
@@ -91,6 +100,13 @@ namespace Shadowsocks.Encryption.AEAD
                         null, 0,
                         _decNonce, _sodiumDecSubkey);
                     break;
+                case CIPHER_AES256GCM:
+                    ret = Sodium.crypto_aead_aes256gcm_decrypt(plaintext, ref decPlen,
+                        null,
+                        ciphertext, (ulong)clen,
+                        null, 0,
+                        _decNonce, _sodiumDecSubkey);
+                    break;
                 default:
                     throw new System.Exception("not implemented");
             }

shadowsocks-csharp/Encryption/EncryptorFactory.cs

@@ -14,6 +14,18 @@ namespace Shadowsocks.Encryption
 
         static EncryptorFactory()
         {
+            var AEADMbedTLSEncryptorSupportedCiphers = AEADMbedTLSEncryptor.SupportedCiphers();
+            var AEADSodiumEncryptorSupportedCiphers = AEADSodiumEncryptor.SupportedCiphers();
+            if (Sodium.AES256GCMAvailable)
+            {
+                // prefer to aes-256-gcm in libsodium
+                AEADMbedTLSEncryptorSupportedCiphers.Remove("aes-256-gcm");
+            }
+            else
+            {
+                AEADSodiumEncryptorSupportedCiphers.Remove("aes-256-gcm");
+            }
+
             foreach (string method in StreamMbedTLSEncryptor.SupportedCiphers())
             {
                 _registeredEncryptors.Add(method, typeof(StreamMbedTLSEncryptor));
@@ -22,11 +34,11 @@ namespace Shadowsocks.Encryption
             {
                 _registeredEncryptors.Add(method, typeof(StreamSodiumEncryptor));
             }
-            foreach (string method in AEADMbedTLSEncryptor.SupportedCiphers())
+            foreach (string method in AEADMbedTLSEncryptorSupportedCiphers)
             {
                 _registeredEncryptors.Add(method, typeof(AEADMbedTLSEncryptor));
             }
-            foreach (string method in AEADSodiumEncryptor.SupportedCiphers())
+            foreach (string method in AEADSodiumEncryptorSupportedCiphers)
             {
                 _registeredEncryptors.Add(method, typeof(AEADSodiumEncryptor));
             }

shadowsocks-csharp/Encryption/Sodium.cs

@@ -14,6 +14,8 @@ namespace Shadowsocks.Encryption
         private static bool _initialized = false;
         private static readonly object _initLock = new object();
 
+        public static bool AES256GCMAvailable { get; private set; } = false;
+
         static Sodium()
         {
             string dllPath = Utils.GetTempPath(DLLNAME);
@@ -42,6 +44,9 @@ namespace Shadowsocks.Encryption
                     {
                         _initialized = true;
                     }
+
+                    AES256GCMAvailable = crypto_aead_aes256gcm_is_available() == 1;
+                    Logging.Debug($"sodium: AES256GCMAvailable is {AES256GCMAvailable}");
                 }
             }
         }
@@ -52,6 +57,9 @@ namespace Shadowsocks.Encryption
         [DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
         private static extern int sodium_init();
 
+        [DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
+        private static extern int crypto_aead_aes256gcm_is_available();
+
         #region AEAD
 
         [DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
@@ -65,6 +73,14 @@ namespace Shadowsocks.Encryption
         public static extern int crypto_aead_chacha20poly1305_ietf_decrypt(byte[] m, ref ulong mlen_p,
             byte[] nsec, byte[] c, ulong clen, byte[] ad, ulong adlen, byte[] npub, byte[] k);
 
+        [DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
+        public static extern int crypto_aead_aes256gcm_encrypt(byte[] c, ref ulong clen_p, byte[] m, ulong mlen,
+            byte[] ad, ulong adlen, byte[] nsec, byte[] npub, byte[] k);
+
+        [DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
+        public static extern int crypto_aead_aes256gcm_decrypt(byte[] m, ref ulong mlen_p, byte[] nsec, byte[] c,
+            ulong clen, byte[] ad, ulong adlen, byte[] npub, byte[] k);
+
         #endregion
 
         #region Stream

shadowsocks-csharp/Model/Configuration.cs

@@ -89,7 +89,10 @@ namespace Shadowsocks.Model
                     configs = new List<Server>()
                     {
                         GetDefaultServer()
-                    }
+                    },
+                    logViewer = new LogViewerConfig(),
+                    proxy = new ProxyConfig(),
+                    hotkey = new HotkeyConfig()
                 };
             }
         }

shadowsocks-csharp/Model/Server.cs

@@ -1,7 +1,7 @@
 using System;
 using System.Collections.Generic;
+using System.Collections.Specialized;
 using System.Text;
-using System.Text.RegularExpressions;
 using System.Web;
 using Shadowsocks.Controller;
 
@@ -10,10 +10,6 @@ namespace Shadowsocks.Model
     [Serializable]
     public class Server
     {
-        public static readonly Regex
-            UrlFinder = new Regex(@"ss://(?<base64>[A-Za-z0-9+-/=_]+)(?:#(?<tag>\S+))?", RegexOptions.IgnoreCase),
-            DetailsParser = new Regex(@"^((?<method>.+?):(?<password>.*)@(?<hostname>.+?):(?<port>\d+?))$", RegexOptions.IgnoreCase);
-
         private const int DefaultServerTimeoutSec = 5;
         public const int MaxServerTimeoutSec = 20;
 
@@ -21,6 +17,8 @@ namespace Shadowsocks.Model
         public int server_port;
         public string password;
         public string method;
+        public string plugin;
+        public string plugin_opts;
         public string remarks;
         public int timeout;
 
@@ -65,6 +63,8 @@ namespace Shadowsocks.Model
             server = "";
             server_port = 8388;
             method = "aes-256-cfb";
+            plugin = "";
+            plugin_opts = "";
             password = "";
             remarks = "";
             timeout = DefaultServerTimeoutSec;
@@ -72,26 +72,95 @@ namespace Shadowsocks.Model
 
         public static List<Server> GetServers(string ssURL)
         {
-            var matches = UrlFinder.Matches(ssURL);
-            if (matches.Count <= 0) return null;
+            var serverUrls = ssURL.Split('\r', '\n');
+
             List<Server> servers = new List<Server>();
-            foreach (Match match in matches)
+            foreach (string serverUrl in serverUrls)
             {
-                Server tmp = new Server();
-                var base64 = match.Groups["base64"].Value;
-                var tag = match.Groups["tag"].Value;
-                if (!tag.IsNullOrEmpty())
+                if (string.IsNullOrWhiteSpace(serverUrl))
                 {
-                    tmp.remarks = HttpUtility.UrlDecode(tag, Encoding.UTF8);
-                }
-                Match details = DetailsParser.Match(Encoding.UTF8.GetString(Convert.FromBase64String(
-                    base64.PadRight(base64.Length + (4 - base64.Length % 4) % 4, '='))));
-                if (!details.Success)
                     continue;
-                tmp.method = details.Groups["method"].Value;
-                tmp.password = details.Groups["password"].Value;
-                tmp.server = details.Groups["hostname"].Value;
-                tmp.server_port = int.Parse(details.Groups["port"].Value);
+                }
+
+                Uri parsedUrl;
+                try
+                {
+                    parsedUrl = new Uri(serverUrl);
+                }
+                catch (UriFormatException)
+                {
+                    continue;
+                }
+
+                Server tmp = new Server
+                {
+                    remarks = parsedUrl.GetComponents(UriComponents.Fragment, UriFormat.Unescaped)
+                };
+
+                string possiblyUnpaddedBase64 = parsedUrl.GetComponents(UriComponents.UserInfo, UriFormat.Unescaped);
+                bool isOldFormatUrl = possiblyUnpaddedBase64.Length == 0;
+                if (isOldFormatUrl)
+                {
+                    int prefixLength = "ss://".Length;
+                    int indexOfHashOrSlash = serverUrl.LastIndexOfAny(
+                        new[] { '/', '#' },
+                        serverUrl.Length - 1,
+                        serverUrl.Length - prefixLength);
+
+                    int substringLength = serverUrl.Length - prefixLength;
+                    if (indexOfHashOrSlash >= 0)
+                    {
+                        substringLength = indexOfHashOrSlash - prefixLength;
+                    }
+
+                    possiblyUnpaddedBase64 = serverUrl.Substring(prefixLength, substringLength).TrimEnd('/');
+                }
+                else
+                {
+                    // Web-safe base64 to normal base64
+                    possiblyUnpaddedBase64 = possiblyUnpaddedBase64.Replace('-', '+').Replace('_', '/');
+                }
+
+                string base64 = possiblyUnpaddedBase64.PadRight(
+                    possiblyUnpaddedBase64.Length + (4 - possiblyUnpaddedBase64.Length % 4) % 4,
+                    '=');
+
+                string innerUserInfoOrUrl = Encoding.UTF8.GetString(Convert.FromBase64String(base64));
+                string userInfo;
+                if (isOldFormatUrl)
+                {
+                    Uri innerUrl = new Uri("inner://" + innerUserInfoOrUrl);
+                    userInfo = innerUrl.GetComponents(UriComponents.UserInfo, UriFormat.Unescaped);
+                    tmp.server = innerUrl.GetComponents(UriComponents.Host, UriFormat.Unescaped);
+                    tmp.server_port = innerUrl.Port;
+                }
+                else
+                {
+                    userInfo = innerUserInfoOrUrl;
+                    tmp.server = parsedUrl.GetComponents(UriComponents.Host, UriFormat.Unescaped);
+                    tmp.server_port = parsedUrl.Port;
+                }
+
+                string[] userInfoParts = userInfo.Split(new[] { ':' }, 2);
+                if (userInfoParts.Length != 2)
+                {
+                    continue;
+                }
+
+                tmp.method = userInfoParts[0];
+                tmp.password = userInfoParts[1];
+
+                NameValueCollection queryParameters = HttpUtility.ParseQueryString(parsedUrl.Query);
+                string[] pluginParts = HttpUtility.UrlDecode(queryParameters["plugin"] ?? "").Split(new[] { ';' }, 2);
+                if (pluginParts.Length > 0)
+                {
+                    tmp.plugin = pluginParts[0] ?? "";
+                }
+
+                if (pluginParts.Length > 1)
+                {
+                    tmp.plugin_opts = pluginParts[1] ?? "";
+                }
 
                 servers.Add(tmp);
             }

shadowsocks-csharp/Model/SysproxyConfig.cs

@@ -0,0 +1,27 @@
+using System;
+
+namespace Shadowsocks.Model
+{
+    /*
+     * Data come from WinINET
+     */
+
+    [Serializable]
+    public class SysproxyConfig
+    {
+        public bool UserSettingsRecorded;
+        public string Flags;
+        public string ProxyServer;
+        public string BypassList;
+        public string PacUrl;
+
+        public SysproxyConfig()
+        {
+            UserSettingsRecorded = false;
+            Flags = "1";
+            ProxyServer = "";
+            BypassList = "";
+            PacUrl = "";
+        }
+    }
+}

shadowsocks-csharp/Util/Sockets/WrappedSocket.cs

@@ -42,7 +42,10 @@ namespace Shadowsocks.Util.Sockets
             arg.Completed += OnTcpConnectCompleted;
             arg.UserToken = new TcpUserToken(callback, state);
 
-            Socket.ConnectAsync(SocketType.Stream, ProtocolType.Tcp, arg);
+            if(!Socket.ConnectAsync(SocketType.Stream, ProtocolType.Tcp, arg))
+            {
+                OnTcpConnectCompleted(this, arg);
+            }
         }
 
         private class FakeAsyncResult : IAsyncResult

shadowsocks-csharp/Util/SystemProxy/Sysproxy.cs

@@ -1,15 +1,19 @@
 using System;
 using System.Diagnostics;
 using System.IO;
-using System.Text;
 using Shadowsocks.Controller;
 using Shadowsocks.Properties;
+using Shadowsocks.Model;
+using System.Text;
+using Newtonsoft.Json;
 
 namespace Shadowsocks.Util.SystemProxy
 {
     public static class Sysproxy
     {
-        private static bool _userSettingsRecorded = false;
+        private const string _userWininetConfigFile = "user-wininet.json";
+
+        private static string _queryStr;
 
         // In general, this won't change
         // format:
@@ -17,7 +21,7 @@ namespace Shadowsocks.Util.SystemProxy
         //  <proxy-server><CR-LF>
         //  <bypass-list><CR-LF>
         //  <pac-url>
-        private static string[] _userSettings = new string[4];
+        private static SysproxyConfig _userSettings = null;
 
         enum RET_ERRORS : int
         {
@@ -31,8 +35,7 @@ namespace Shadowsocks.Util.SystemProxy
 
         static Sysproxy()
         {
-            try
-            {
+            try {
                 FileManager.UncompressFile(Utils.GetTempPath("sysproxy.exe"),
                     Environment.Is64BitOperatingSystem ? Resources.sysproxy64_exe : Resources.sysproxy_exe);
             }
@@ -44,16 +47,16 @@ namespace Shadowsocks.Util.SystemProxy
 
         public static void SetIEProxy(bool enable, bool global, string proxyServer, string pacURL)
         {
-            string str;
-            if (_userSettingsRecorded == false)
+            Read();
+
+            if (!_userSettings.UserSettingsRecorded)
             {
                 // record user settings
-                ExecSysproxy("query", out str);
-                ParseQueryStr(str);
-                _userSettingsRecorded = true;
+                ExecSysproxy("query");
+                ParseQueryStr(_queryStr);
             }
-            string arguments;
 
+            string arguments;
             if (enable)
             {
                 arguments = global
@@ -63,20 +66,21 @@ namespace Shadowsocks.Util.SystemProxy
             else
             {
                 // restore user settings
-                var flags = _userSettings[0];
-                var proxy_server = _userSettings[1] ?? "-";
-                var bypass_list = _userSettings[2] ?? "-";
-                var pac_url = _userSettings[3] ?? "-";
+                var flags = _userSettings.Flags;
+                var proxy_server = _userSettings.ProxyServer ?? "-";
+                var bypass_list = _userSettings.BypassList ?? "-";
+                var pac_url = _userSettings.PacUrl ?? "-";
                 arguments = $"set {flags} {proxy_server} {bypass_list} {pac_url}";
 
                 // have to get new settings
-                _userSettingsRecorded = false;
+                _userSettings.UserSettingsRecorded = false;
             }
 
-            ExecSysproxy(arguments, out str);
+            Save();
+            ExecSysproxy(arguments);
         }
 
-        private static void ExecSysproxy(string arguments, out string queryStr)
+        private static void ExecSysproxy(string arguments)
         {
             using (var process = new Process())
             {
@@ -107,24 +111,55 @@ namespace Shadowsocks.Util.SystemProxy
                     throw new ProxyException(stderr);
                 }
 
-                if (arguments == "query" && stdout.IsNullOrWhiteSpace())
-                {
-                    // we cannot get user settings
-                    throw new ProxyException("failed to query wininet settings");
+                if (arguments == "query") {
+                    if (stdout.IsNullOrWhiteSpace() || stdout.IsNullOrEmpty()) {
+                        // we cannot get user settings
+                        throw new ProxyException("failed to query wininet settings");
+                    }
+                    _queryStr = stdout;
                 }
-                queryStr = stdout;
+            }
+        }
+
+        private static void Save()
+        {
+            try {
+                using (StreamWriter sw = new StreamWriter(File.Open(_userWininetConfigFile, FileMode.Create))) {
+                    string jsonString = JsonConvert.SerializeObject(_userSettings, Formatting.Indented);
+                    sw.Write(jsonString);
+                    sw.Flush();
+                }
+            } catch (IOException e) {
+                Logging.LogUsefulException(e);
+            }
+        }
+
+        private static void Read()
+        {
+            try {
+                string configContent = File.ReadAllText(_userWininetConfigFile);
+                _userSettings = JsonConvert.DeserializeObject<SysproxyConfig>(configContent);
+            } catch(Exception) {
+               // Suppress all exceptions. finally block will initialize new user config settings.
+            } finally {
+                if (_userSettings == null) _userSettings = new SysproxyConfig();
             }
         }
 
         private static void ParseQueryStr(string str)
         {
-            _userSettings = str.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
-            for (var i = 0; i < 4; i++)
-            {
-                // handle output from WinINET
-                if (_userSettings[i] == "(null)")
-                    _userSettings[i] = null;
-            }
+            string[] userSettingsArr = str.Split(new string[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
+            _userSettings.Flags = userSettingsArr[0];
+
+            // handle output from WinINET
+            if (userSettingsArr[1] == "(null)") _userSettings.ProxyServer = null;
+            else _userSettings.ProxyServer = userSettingsArr[1];
+            if (userSettingsArr[2] == "(null)") _userSettings.BypassList = null;
+            else _userSettings.BypassList = userSettingsArr[2];
+            if (userSettingsArr[3] == "(null)") _userSettings.PacUrl = null;
+            else _userSettings.PacUrl = userSettingsArr[3];
+
+            _userSettings.UserSettingsRecorded = true;
         }
     }
-}
+}

shadowsocks-csharp/View/ConfigForm.Designer.cs

@@ -29,6 +29,8 @@
         private void InitializeComponent()
         {
             this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel();
+            this.PluginOptionsLabel = new System.Windows.Forms.Label();
+            this.PluginTextBox = new System.Windows.Forms.TextBox();
             this.RemarksTextBox = new System.Windows.Forms.TextBox();
             this.RemarksLabel = new System.Windows.Forms.Label();
             this.IPLabel = new System.Windows.Forms.Label();
@@ -41,6 +43,8 @@
             this.EncryptionSelect = new System.Windows.Forms.ComboBox();
             this.TimeoutLabel = new System.Windows.Forms.Label();
             this.TimeoutTextBox = new System.Windows.Forms.TextBox();
+            this.PluginLabel = new System.Windows.Forms.Label();
+            this.PluginOptionsTextBox = new System.Windows.Forms.TextBox();
             this.panel2 = new System.Windows.Forms.Panel();
             this.OKButton = new System.Windows.Forms.Button();
             this.MyCancelButton = new System.Windows.Forms.Button();
@@ -74,8 +78,10 @@
             this.tableLayoutPanel1.ColumnCount = 2;
             this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
             this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel1.Controls.Add(this.RemarksTextBox, 1, 5);
-            this.tableLayoutPanel1.Controls.Add(this.RemarksLabel, 0, 5);
+            this.tableLayoutPanel1.Controls.Add(this.PluginOptionsLabel, 0, 5);
+            this.tableLayoutPanel1.Controls.Add(this.PluginTextBox, 1, 4);
+            this.tableLayoutPanel1.Controls.Add(this.RemarksTextBox, 1, 7);
+            this.tableLayoutPanel1.Controls.Add(this.RemarksLabel, 0, 7);
             this.tableLayoutPanel1.Controls.Add(this.IPLabel, 0, 0);
             this.tableLayoutPanel1.Controls.Add(this.ServerPortLabel, 0, 1);
             this.tableLayoutPanel1.Controls.Add(this.PasswordLabel, 0, 2);
@@ -84,13 +90,15 @@
             this.tableLayoutPanel1.Controls.Add(this.PasswordTextBox, 1, 2);
             this.tableLayoutPanel1.Controls.Add(this.EncryptionLabel, 0, 3);
             this.tableLayoutPanel1.Controls.Add(this.EncryptionSelect, 1, 3);
-            this.tableLayoutPanel1.Controls.Add(this.TimeoutLabel, 0, 6);
-            this.tableLayoutPanel1.Controls.Add(this.TimeoutTextBox, 1, 6);
+            this.tableLayoutPanel1.Controls.Add(this.TimeoutLabel, 0, 8);
+            this.tableLayoutPanel1.Controls.Add(this.TimeoutTextBox, 1, 8);
+            this.tableLayoutPanel1.Controls.Add(this.PluginLabel, 0, 4);
+            this.tableLayoutPanel1.Controls.Add(this.PluginOptionsTextBox, 1, 5);
             this.tableLayoutPanel1.Location = new System.Drawing.Point(8, 21);
             this.tableLayoutPanel1.Margin = new System.Windows.Forms.Padding(0);
             this.tableLayoutPanel1.Name = "tableLayoutPanel1";
             this.tableLayoutPanel1.Padding = new System.Windows.Forms.Padding(3);
-            this.tableLayoutPanel1.RowCount = 7;
+            this.tableLayoutPanel1.RowCount = 9;
             this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
             this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
             this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
@@ -98,26 +106,48 @@
             this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
             this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
             this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
-            this.tableLayoutPanel1.Size = new System.Drawing.Size(255, 167);
+            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
+            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
+            this.tableLayoutPanel1.Size = new System.Drawing.Size(253, 215);
             this.tableLayoutPanel1.TabIndex = 0;
             // 
+            // PluginOptionsLabel
+            // 
+            this.PluginOptionsLabel.Anchor = System.Windows.Forms.AnchorStyles.Right;
+            this.PluginOptionsLabel.AutoSize = true;
+            this.PluginOptionsLabel.Location = new System.Drawing.Point(6, 140);
+            this.PluginOptionsLabel.Name = "PluginOptionsLabel";
+            this.PluginOptionsLabel.Size = new System.Drawing.Size(75, 13);
+            this.PluginOptionsLabel.TabIndex = 15;
+            this.PluginOptionsLabel.Text = "Plugin Options";
+            // 
+            // PluginTextBox
+            // 
+            this.PluginTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
+            this.PluginTextBox.Location = new System.Drawing.Point(87, 111);
+            this.PluginTextBox.MaxLength = 256;
+            this.PluginTextBox.Name = "PluginTextBox";
+            this.PluginTextBox.Size = new System.Drawing.Size(160, 20);
+            this.PluginTextBox.TabIndex = 4;
+            this.PluginTextBox.WordWrap = false;
+            // 
             // RemarksTextBox
             // 
             this.RemarksTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
-            this.RemarksTextBox.Location = new System.Drawing.Point(89, 113);
+            this.RemarksTextBox.Location = new System.Drawing.Point(87, 163);
             this.RemarksTextBox.MaxLength = 32;
             this.RemarksTextBox.Name = "RemarksTextBox";
-            this.RemarksTextBox.Size = new System.Drawing.Size(160, 21);
-            this.RemarksTextBox.TabIndex = 4;
+            this.RemarksTextBox.Size = new System.Drawing.Size(160, 20);
+            this.RemarksTextBox.TabIndex = 6;
             this.RemarksTextBox.WordWrap = false;
             // 
             // RemarksLabel
             // 
             this.RemarksLabel.Anchor = System.Windows.Forms.AnchorStyles.Right;
             this.RemarksLabel.AutoSize = true;
-            this.RemarksLabel.Location = new System.Drawing.Point(36, 117);
+            this.RemarksLabel.Location = new System.Drawing.Point(32, 166);
             this.RemarksLabel.Name = "RemarksLabel";
-            this.RemarksLabel.Size = new System.Drawing.Size(47, 12);
+            this.RemarksLabel.Size = new System.Drawing.Size(49, 13);
             this.RemarksLabel.TabIndex = 9;
             this.RemarksLabel.Text = "Remarks";
             // 
@@ -125,9 +155,9 @@
             // 
             this.IPLabel.Anchor = System.Windows.Forms.AnchorStyles.Right;
             this.IPLabel.AutoSize = true;
-            this.IPLabel.Location = new System.Drawing.Point(24, 10);
+            this.IPLabel.Location = new System.Drawing.Point(30, 9);
             this.IPLabel.Name = "IPLabel";
-            this.IPLabel.Size = new System.Drawing.Size(59, 12);
+            this.IPLabel.Size = new System.Drawing.Size(51, 13);
             this.IPLabel.TabIndex = 0;
             this.IPLabel.Text = "Server IP";
             // 
@@ -135,9 +165,9 @@
             // 
             this.ServerPortLabel.Anchor = System.Windows.Forms.AnchorStyles.Right;
             this.ServerPortLabel.AutoSize = true;
-            this.ServerPortLabel.Location = new System.Drawing.Point(12, 37);
+            this.ServerPortLabel.Location = new System.Drawing.Point(21, 35);
             this.ServerPortLabel.Name = "ServerPortLabel";
-            this.ServerPortLabel.Size = new System.Drawing.Size(71, 12);
+            this.ServerPortLabel.Size = new System.Drawing.Size(60, 13);
             this.ServerPortLabel.TabIndex = 1;
             this.ServerPortLabel.Text = "Server Port";
             // 
@@ -145,39 +175,39 @@
             // 
             this.PasswordLabel.Anchor = System.Windows.Forms.AnchorStyles.Right;
             this.PasswordLabel.AutoSize = true;
-            this.PasswordLabel.Location = new System.Drawing.Point(30, 64);
+            this.PasswordLabel.Location = new System.Drawing.Point(28, 61);
             this.PasswordLabel.Name = "PasswordLabel";
-            this.PasswordLabel.Size = new System.Drawing.Size(53, 12);
+            this.PasswordLabel.Size = new System.Drawing.Size(53, 13);
             this.PasswordLabel.TabIndex = 2;
             this.PasswordLabel.Text = "Password";
             // 
             // IPTextBox
             // 
             this.IPTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
-            this.IPTextBox.Location = new System.Drawing.Point(89, 6);
+            this.IPTextBox.Location = new System.Drawing.Point(87, 6);
             this.IPTextBox.MaxLength = 512;
             this.IPTextBox.Name = "IPTextBox";
-            this.IPTextBox.Size = new System.Drawing.Size(160, 21);
+            this.IPTextBox.Size = new System.Drawing.Size(160, 20);
             this.IPTextBox.TabIndex = 0;
             this.IPTextBox.WordWrap = false;
             // 
             // ServerPortTextBox
             // 
             this.ServerPortTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
-            this.ServerPortTextBox.Location = new System.Drawing.Point(89, 33);
+            this.ServerPortTextBox.Location = new System.Drawing.Point(87, 32);
             this.ServerPortTextBox.MaxLength = 10;
             this.ServerPortTextBox.Name = "ServerPortTextBox";
-            this.ServerPortTextBox.Size = new System.Drawing.Size(160, 21);
+            this.ServerPortTextBox.Size = new System.Drawing.Size(160, 20);
             this.ServerPortTextBox.TabIndex = 1;
             this.ServerPortTextBox.WordWrap = false;
             // 
             // PasswordTextBox
             // 
             this.PasswordTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
-            this.PasswordTextBox.Location = new System.Drawing.Point(89, 60);
+            this.PasswordTextBox.Location = new System.Drawing.Point(87, 58);
             this.PasswordTextBox.MaxLength = 256;
             this.PasswordTextBox.Name = "PasswordTextBox";
-            this.PasswordTextBox.Size = new System.Drawing.Size(160, 21);
+            this.PasswordTextBox.Size = new System.Drawing.Size(160, 20);
             this.PasswordTextBox.TabIndex = 2;
             this.PasswordTextBox.UseSystemPasswordChar = true;
             this.PasswordTextBox.WordWrap = false;
@@ -186,9 +216,9 @@
             // 
             this.EncryptionLabel.Anchor = System.Windows.Forms.AnchorStyles.Right;
             this.EncryptionLabel.AutoSize = true;
-            this.EncryptionLabel.Location = new System.Drawing.Point(18, 91);
+            this.EncryptionLabel.Location = new System.Drawing.Point(24, 88);
             this.EncryptionLabel.Name = "EncryptionLabel";
-            this.EncryptionLabel.Size = new System.Drawing.Size(65, 12);
+            this.EncryptionLabel.Size = new System.Drawing.Size(57, 13);
             this.EncryptionLabel.TabIndex = 8;
             this.EncryptionLabel.Text = "Encryption";
             // 
@@ -199,7 +229,7 @@
             this.EncryptionSelect.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
             this.EncryptionSelect.FormattingEnabled = true;
             this.EncryptionSelect.ImeMode = System.Windows.Forms.ImeMode.NoControl;
-            this.EncryptionSelect.ItemHeight = 12;
+            this.EncryptionSelect.ItemHeight = 13;
             this.EncryptionSelect.Items.AddRange(new object[] {
             "rc4-md5",
             "salsa20",
@@ -219,30 +249,50 @@
             "aes-192-gcm",
             "aes-256-gcm",
             "chacha20-ietf-poly1305"});
-            this.EncryptionSelect.Location = new System.Drawing.Point(89, 87);
+            this.EncryptionSelect.Location = new System.Drawing.Point(87, 84);
             this.EncryptionSelect.Name = "EncryptionSelect";
-            this.EncryptionSelect.Size = new System.Drawing.Size(160, 20);
+            this.EncryptionSelect.Size = new System.Drawing.Size(160, 21);
             this.EncryptionSelect.TabIndex = 3;
             // 
             // TimeoutLabel
             // 
             this.TimeoutLabel.Anchor = System.Windows.Forms.AnchorStyles.Right;
             this.TimeoutLabel.AutoSize = true;
-            this.TimeoutLabel.Location = new System.Drawing.Point(6, 144);
+            this.TimeoutLabel.Location = new System.Drawing.Point(11, 192);
             this.TimeoutLabel.Name = "TimeoutLabel";
             this.TimeoutLabel.RightToLeft = System.Windows.Forms.RightToLeft.No;
-            this.TimeoutLabel.Size = new System.Drawing.Size(77, 12);
+            this.TimeoutLabel.Size = new System.Drawing.Size(70, 13);
             this.TimeoutLabel.TabIndex = 10;
             this.TimeoutLabel.Text = "Timeout(Sec)";
             // 
             // TimeoutTextBox
             // 
             this.TimeoutTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
-            this.TimeoutTextBox.Location = new System.Drawing.Point(89, 140);
+            this.TimeoutTextBox.Location = new System.Drawing.Point(87, 189);
             this.TimeoutTextBox.MaxLength = 5;
             this.TimeoutTextBox.Name = "TimeoutTextBox";
-            this.TimeoutTextBox.Size = new System.Drawing.Size(160, 21);
-            this.TimeoutTextBox.TabIndex = 11;
+            this.TimeoutTextBox.Size = new System.Drawing.Size(160, 20);
+            this.TimeoutTextBox.TabIndex = 7;
+            // 
+            // PluginLabel
+            // 
+            this.PluginLabel.Anchor = System.Windows.Forms.AnchorStyles.Right;
+            this.PluginLabel.AutoSize = true;
+            this.PluginLabel.Location = new System.Drawing.Point(45, 114);
+            this.PluginLabel.Name = "PluginLabel";
+            this.PluginLabel.Size = new System.Drawing.Size(36, 13);
+            this.PluginLabel.TabIndex = 12;
+            this.PluginLabel.Text = "Plugin";
+            // 
+            // PluginOptionsTextBox
+            // 
+            this.PluginOptionsTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
+            this.PluginOptionsTextBox.Location = new System.Drawing.Point(87, 137);
+            this.PluginOptionsTextBox.MaxLength = 256;
+            this.PluginOptionsTextBox.Name = "PluginOptionsTextBox";
+            this.PluginOptionsTextBox.Size = new System.Drawing.Size(160, 20);
+            this.PluginOptionsTextBox.TabIndex = 5;
+            this.PluginOptionsTextBox.WordWrap = false;
             // 
             // panel2
             // 
@@ -262,7 +312,7 @@
             this.OKButton.Margin = new System.Windows.Forms.Padding(3, 3, 3, 0);
             this.OKButton.Name = "OKButton";
             this.OKButton.Size = new System.Drawing.Size(75, 23);
-            this.OKButton.TabIndex = 12;
+            this.OKButton.TabIndex = 15;
             this.OKButton.Text = "OK";
             this.OKButton.UseVisualStyleBackColor = true;
             this.OKButton.Click += new System.EventHandler(this.OKButton_Click);
@@ -275,7 +325,7 @@
             this.MyCancelButton.Margin = new System.Windows.Forms.Padding(3, 3, 0, 0);
             this.MyCancelButton.Name = "MyCancelButton";
             this.MyCancelButton.Size = new System.Drawing.Size(75, 23);
-            this.MyCancelButton.TabIndex = 13;
+            this.MyCancelButton.TabIndex = 16;
             this.MyCancelButton.Text = "Cancel";
             this.MyCancelButton.UseVisualStyleBackColor = true;
             this.MyCancelButton.Click += new System.EventHandler(this.CancelButton_Click);
@@ -287,7 +337,7 @@
             this.DeleteButton.Margin = new System.Windows.Forms.Padding(3, 6, 0, 3);
             this.DeleteButton.Name = "DeleteButton";
             this.DeleteButton.Size = new System.Drawing.Size(80, 23);
-            this.DeleteButton.TabIndex = 9;
+            this.DeleteButton.TabIndex = 11;
             this.DeleteButton.Text = "&Delete";
             this.DeleteButton.UseVisualStyleBackColor = true;
             this.DeleteButton.Click += new System.EventHandler(this.DeleteButton_Click);
@@ -299,7 +349,7 @@
             this.AddButton.Margin = new System.Windows.Forms.Padding(0, 6, 3, 3);
             this.AddButton.Name = "AddButton";
             this.AddButton.Size = new System.Drawing.Size(80, 23);
-            this.AddButton.TabIndex = 8;
+            this.AddButton.TabIndex = 10;
             this.AddButton.Text = "&Add";
             this.AddButton.UseVisualStyleBackColor = true;
             this.AddButton.Click += new System.EventHandler(this.AddButton_Click);
@@ -312,7 +362,7 @@
             this.ServerGroupBox.Location = new System.Drawing.Point(178, 0);
             this.ServerGroupBox.Margin = new System.Windows.Forms.Padding(12, 0, 0, 0);
             this.ServerGroupBox.Name = "ServerGroupBox";
-            this.ServerGroupBox.Size = new System.Drawing.Size(266, 205);
+            this.ServerGroupBox.Size = new System.Drawing.Size(264, 252);
             this.ServerGroupBox.TabIndex = 0;
             this.ServerGroupBox.TabStop = false;
             this.ServerGroupBox.Text = "Server";
@@ -321,12 +371,11 @@
             // 
             this.ServersListBox.FormattingEnabled = true;
             this.ServersListBox.IntegralHeight = false;
-            this.ServersListBox.ItemHeight = 12;
             this.ServersListBox.Location = new System.Drawing.Point(0, 0);
             this.ServersListBox.Margin = new System.Windows.Forms.Padding(0);
             this.ServersListBox.Name = "ServersListBox";
             this.ServersListBox.Size = new System.Drawing.Size(166, 148);
-            this.ServersListBox.TabIndex = 7;
+            this.ServersListBox.TabIndex = 9;
             this.ServersListBox.SelectedIndexChanged += new System.EventHandler(this.ServersListBox_SelectedIndexChanged);
             // 
             // tableLayoutPanel2
@@ -349,7 +398,7 @@
             this.tableLayoutPanel2.RowStyles.Add(new System.Windows.Forms.RowStyle());
             this.tableLayoutPanel2.RowStyles.Add(new System.Windows.Forms.RowStyle());
             this.tableLayoutPanel2.RowStyles.Add(new System.Windows.Forms.RowStyle());
-            this.tableLayoutPanel2.Size = new System.Drawing.Size(444, 301);
+            this.tableLayoutPanel2.Size = new System.Drawing.Size(442, 348);
             this.tableLayoutPanel2.TabIndex = 7;
             // 
             // tableLayoutPanel6
@@ -362,7 +411,7 @@
             this.tableLayoutPanel6.Controls.Add(this.MoveDownButton, 1, 0);
             this.tableLayoutPanel6.Controls.Add(this.MoveUpButton, 0, 0);
             this.tableLayoutPanel6.Dock = System.Windows.Forms.DockStyle.Top;
-            this.tableLayoutPanel6.Location = new System.Drawing.Point(0, 269);
+            this.tableLayoutPanel6.Location = new System.Drawing.Point(0, 316);
             this.tableLayoutPanel6.Margin = new System.Windows.Forms.Padding(0);
             this.tableLayoutPanel6.Name = "tableLayoutPanel6";
             this.tableLayoutPanel6.RowCount = 1;
@@ -377,7 +426,7 @@
             this.MoveDownButton.Margin = new System.Windows.Forms.Padding(3, 6, 0, 3);
             this.MoveDownButton.Name = "MoveDownButton";
             this.MoveDownButton.Size = new System.Drawing.Size(80, 23);
-            this.MoveDownButton.TabIndex = 11;
+            this.MoveDownButton.TabIndex = 14;
             this.MoveDownButton.Text = "Move D&own";
             this.MoveDownButton.UseVisualStyleBackColor = true;
             this.MoveDownButton.Click += new System.EventHandler(this.MoveDownButton_Click);
@@ -389,7 +438,7 @@
             this.MoveUpButton.Margin = new System.Windows.Forms.Padding(0, 6, 3, 3);
             this.MoveUpButton.Name = "MoveUpButton";
             this.MoveUpButton.Size = new System.Drawing.Size(80, 23);
-            this.MoveUpButton.TabIndex = 10;
+            this.MoveUpButton.TabIndex = 13;
             this.MoveUpButton.Text = "Move &Up";
             this.MoveUpButton.UseVisualStyleBackColor = true;
             this.MoveUpButton.Click += new System.EventHandler(this.MoveUpButton_Click);
@@ -405,7 +454,7 @@
             this.tableLayoutPanel5.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
             this.tableLayoutPanel5.Controls.Add(this.ProxyPortTextBox, 1, 0);
             this.tableLayoutPanel5.Controls.Add(this.ProxyPortLabel, 0, 0);
-            this.tableLayoutPanel5.Location = new System.Drawing.Point(248, 205);
+            this.tableLayoutPanel5.Location = new System.Drawing.Point(256, 252);
             this.tableLayoutPanel5.Margin = new System.Windows.Forms.Padding(0);
             this.tableLayoutPanel5.Name = "tableLayoutPanel5";
             this.tableLayoutPanel5.Padding = new System.Windows.Forms.Padding(3);
@@ -415,26 +464,26 @@
             this.tableLayoutPanel5.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 58F));
             this.tableLayoutPanel5.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 58F));
             this.tableLayoutPanel5.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 58F));
-            this.tableLayoutPanel5.Size = new System.Drawing.Size(196, 64);
+            this.tableLayoutPanel5.Size = new System.Drawing.Size(186, 64);
             this.tableLayoutPanel5.TabIndex = 9;
             // 
             // ProxyPortTextBox
             // 
             this.ProxyPortTextBox.Anchor = System.Windows.Forms.AnchorStyles.Left;
-            this.ProxyPortTextBox.Location = new System.Drawing.Point(77, 21);
+            this.ProxyPortTextBox.Location = new System.Drawing.Point(67, 22);
             this.ProxyPortTextBox.MaxLength = 10;
             this.ProxyPortTextBox.Name = "ProxyPortTextBox";
-            this.ProxyPortTextBox.Size = new System.Drawing.Size(113, 21);
-            this.ProxyPortTextBox.TabIndex = 6;
+            this.ProxyPortTextBox.Size = new System.Drawing.Size(113, 20);
+            this.ProxyPortTextBox.TabIndex = 8;
             this.ProxyPortTextBox.WordWrap = false;
             // 
             // ProxyPortLabel
             // 
             this.ProxyPortLabel.Anchor = System.Windows.Forms.AnchorStyles.Right;
             this.ProxyPortLabel.AutoSize = true;
-            this.ProxyPortLabel.Location = new System.Drawing.Point(6, 26);
+            this.ProxyPortLabel.Location = new System.Drawing.Point(6, 25);
             this.ProxyPortLabel.Name = "ProxyPortLabel";
-            this.ProxyPortLabel.Size = new System.Drawing.Size(65, 12);
+            this.ProxyPortLabel.Size = new System.Drawing.Size(55, 13);
             this.ProxyPortLabel.TabIndex = 3;
             this.ProxyPortLabel.Text = "Proxy Port";
             // 
@@ -449,7 +498,7 @@
             this.tableLayoutPanel3.Controls.Add(this.MyCancelButton, 1, 0);
             this.tableLayoutPanel3.Controls.Add(this.OKButton, 0, 0);
             this.tableLayoutPanel3.Dock = System.Windows.Forms.DockStyle.Right;
-            this.tableLayoutPanel3.Location = new System.Drawing.Point(285, 272);
+            this.tableLayoutPanel3.Location = new System.Drawing.Point(283, 319);
             this.tableLayoutPanel3.Margin = new System.Windows.Forms.Padding(3, 3, 0, 3);
             this.tableLayoutPanel3.Name = "tableLayoutPanel3";
             this.tableLayoutPanel3.RowCount = 1;
@@ -468,7 +517,7 @@
             this.tableLayoutPanel4.Controls.Add(this.DeleteButton, 1, 0);
             this.tableLayoutPanel4.Controls.Add(this.AddButton, 0, 0);
             this.tableLayoutPanel4.Dock = System.Windows.Forms.DockStyle.Top;
-            this.tableLayoutPanel4.Location = new System.Drawing.Point(0, 205);
+            this.tableLayoutPanel4.Location = new System.Drawing.Point(0, 252);
             this.tableLayoutPanel4.Margin = new System.Windows.Forms.Padding(0);
             this.tableLayoutPanel4.Name = "tableLayoutPanel4";
             this.tableLayoutPanel4.RowCount = 2;
@@ -484,7 +533,7 @@
             this.DuplicateButton.Margin = new System.Windows.Forms.Padding(0, 6, 3, 3);
             this.DuplicateButton.Name = "DuplicateButton";
             this.DuplicateButton.Size = new System.Drawing.Size(80, 23);
-            this.DuplicateButton.TabIndex = 10;
+            this.DuplicateButton.TabIndex = 12;
             this.DuplicateButton.Text = "Dupli&cate";
             this.DuplicateButton.UseVisualStyleBackColor = true;
             this.DuplicateButton.Click += new System.EventHandler(this.DuplicateButton_Click);
@@ -559,6 +608,10 @@
         private System.Windows.Forms.Button DuplicateButton;
         private System.Windows.Forms.Label TimeoutLabel;
         private System.Windows.Forms.TextBox TimeoutTextBox;
+        private System.Windows.Forms.Label PluginOptionsLabel;
+        private System.Windows.Forms.TextBox PluginTextBox;
+        private System.Windows.Forms.Label PluginLabel;
+        private System.Windows.Forms.TextBox PluginOptionsTextBox;
     }
 }
 

shadowsocks-csharp/View/ConfigForm.cs

@@ -47,6 +47,8 @@ namespace Shadowsocks.View
             ServerPortLabel.Text = I18N.GetString("Server Port");
             PasswordLabel.Text = I18N.GetString("Password");
             EncryptionLabel.Text = I18N.GetString("Encryption");
+            PluginLabel.Text = I18N.GetString("Plugin");
+            PluginOptionsLabel.Text = I18N.GetString("Plugin Options");
             ProxyPortLabel.Text = I18N.GetString("Proxy Port");
             RemarksLabel.Text = I18N.GetString("Remarks");
             TimeoutLabel.Text = I18N.GetString("Timeout(Sec)");
@@ -94,6 +96,8 @@ namespace Shadowsocks.View
                 }
                 server.password = PasswordTextBox.Text;
                 server.method = EncryptionSelect.Text;
+                server.plugin = PluginTextBox.Text;
+                server.plugin_opts = PluginOptionsTextBox.Text;
                 server.remarks = RemarksTextBox.Text;
                 if (!int.TryParse(TimeoutTextBox.Text, out server.timeout))
                 {
@@ -127,6 +131,8 @@ namespace Shadowsocks.View
                 PasswordTextBox.Text = server.password;
                 ProxyPortTextBox.Text = _modifiedConfiguration.localPort.ToString();
                 EncryptionSelect.Text = server.method ?? "aes-256-cfb";
+                PluginTextBox.Text = server.plugin;
+                PluginOptionsTextBox.Text = server.plugin_opts;
                 RemarksTextBox.Text = server.remarks;
                 TimeoutTextBox.Text = server.timeout.ToString();
             }

shadowsocks-csharp/View/ProxyForm.Designer.cs

@@ -28,70 +28,27 @@
         /// </summary>
         private void InitializeComponent()
         {
-            this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel();
-            this.tableLayoutPanel3 = new System.Windows.Forms.TableLayoutPanel();
             this.MyCancelButton = new System.Windows.Forms.Button();
             this.OKButton = new System.Windows.Forms.Button();
             this.UseProxyCheckBox = new System.Windows.Forms.CheckBox();
-            this.tableLayoutPanel2 = new System.Windows.Forms.TableLayoutPanel();
             this.ProxyAddrLabel = new System.Windows.Forms.Label();
             this.ProxyServerTextBox = new System.Windows.Forms.TextBox();
             this.ProxyPortLabel = new System.Windows.Forms.Label();
             this.ProxyPortTextBox = new System.Windows.Forms.TextBox();
-            this.tableLayoutPanel4 = new System.Windows.Forms.TableLayoutPanel();
             this.ProxyTypeLabel = new System.Windows.Forms.Label();
             this.ProxyTypeComboBox = new System.Windows.Forms.ComboBox();
             this.ProxyTimeoutTextBox = new System.Windows.Forms.TextBox();
             this.ProxyTimeoutLabel = new System.Windows.Forms.Label();
+            this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel();
+            this.ProxyNotificationLabel = new System.Windows.Forms.Label();
+            this.flowLayoutPanel1 = new System.Windows.Forms.FlowLayoutPanel();
             this.tableLayoutPanel1.SuspendLayout();
-            this.tableLayoutPanel3.SuspendLayout();
-            this.tableLayoutPanel2.SuspendLayout();
-            this.tableLayoutPanel4.SuspendLayout();
+            this.flowLayoutPanel1.SuspendLayout();
             this.SuspendLayout();
             // 
-            // tableLayoutPanel1
-            // 
-            this.tableLayoutPanel1.AutoSize = true;
-            this.tableLayoutPanel1.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
-            this.tableLayoutPanel1.ColumnCount = 1;
-            this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel1.Controls.Add(this.tableLayoutPanel3, 0, 3);
-            this.tableLayoutPanel1.Controls.Add(this.UseProxyCheckBox, 0, 0);
-            this.tableLayoutPanel1.Controls.Add(this.tableLayoutPanel2, 0, 2);
-            this.tableLayoutPanel1.Controls.Add(this.tableLayoutPanel4, 0, 1);
-            this.tableLayoutPanel1.Location = new System.Drawing.Point(15, 15);
-            this.tableLayoutPanel1.Name = "tableLayoutPanel1";
-            this.tableLayoutPanel1.RowCount = 4;
-            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
-            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
-            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
-            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
-            this.tableLayoutPanel1.Size = new System.Drawing.Size(395, 123);
-            this.tableLayoutPanel1.TabIndex = 0;
-            // 
-            // tableLayoutPanel3
-            // 
-            this.tableLayoutPanel3.AutoSize = true;
-            this.tableLayoutPanel3.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
-            this.tableLayoutPanel3.ColumnCount = 2;
-            this.tableLayoutPanel3.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel3.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel3.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Absolute, 20F));
-            this.tableLayoutPanel3.Controls.Add(this.MyCancelButton, 1, 0);
-            this.tableLayoutPanel3.Controls.Add(this.OKButton, 0, 0);
-            this.tableLayoutPanel3.Dock = System.Windows.Forms.DockStyle.Right;
-            this.tableLayoutPanel3.Location = new System.Drawing.Point(236, 94);
-            this.tableLayoutPanel3.Margin = new System.Windows.Forms.Padding(3, 3, 0, 3);
-            this.tableLayoutPanel3.Name = "tableLayoutPanel3";
-            this.tableLayoutPanel3.RowCount = 1;
-            this.tableLayoutPanel3.RowStyles.Add(new System.Windows.Forms.RowStyle());
-            this.tableLayoutPanel3.Size = new System.Drawing.Size(159, 26);
-            this.tableLayoutPanel3.TabIndex = 9;
-            // 
             // MyCancelButton
             // 
             this.MyCancelButton.DialogResult = System.Windows.Forms.DialogResult.Cancel;
-            this.MyCancelButton.Dock = System.Windows.Forms.DockStyle.Right;
             this.MyCancelButton.Location = new System.Drawing.Point(84, 3);
             this.MyCancelButton.Margin = new System.Windows.Forms.Padding(3, 3, 0, 0);
             this.MyCancelButton.Name = "MyCancelButton";
@@ -104,7 +61,6 @@
             // OKButton
             // 
             this.OKButton.DialogResult = System.Windows.Forms.DialogResult.OK;
-            this.OKButton.Dock = System.Windows.Forms.DockStyle.Right;
             this.OKButton.Location = new System.Drawing.Point(3, 3);
             this.OKButton.Margin = new System.Windows.Forms.Padding(3, 3, 3, 0);
             this.OKButton.Name = "OKButton";
@@ -117,6 +73,7 @@
             // UseProxyCheckBox
             // 
             this.UseProxyCheckBox.AutoSize = true;
+            this.tableLayoutPanel1.SetColumnSpan(this.UseProxyCheckBox, 2);
             this.UseProxyCheckBox.Location = new System.Drawing.Point(3, 3);
             this.UseProxyCheckBox.Name = "UseProxyCheckBox";
             this.UseProxyCheckBox.Size = new System.Drawing.Size(78, 16);
@@ -125,31 +82,11 @@
             this.UseProxyCheckBox.UseVisualStyleBackColor = true;
             this.UseProxyCheckBox.CheckedChanged += new System.EventHandler(this.UseProxyCheckBox_CheckedChanged);
             // 
-            // tableLayoutPanel2
-            // 
-            this.tableLayoutPanel2.AutoSize = true;
-            this.tableLayoutPanel2.ColumnCount = 4;
-            this.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel2.Controls.Add(this.ProxyAddrLabel, 0, 0);
-            this.tableLayoutPanel2.Controls.Add(this.ProxyServerTextBox, 1, 0);
-            this.tableLayoutPanel2.Controls.Add(this.ProxyPortLabel, 2, 0);
-            this.tableLayoutPanel2.Controls.Add(this.ProxyPortTextBox, 3, 0);
-            this.tableLayoutPanel2.Location = new System.Drawing.Point(3, 61);
-            this.tableLayoutPanel2.Name = "tableLayoutPanel2";
-            this.tableLayoutPanel2.RowCount = 1;
-            this.tableLayoutPanel2.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 100F));
-            this.tableLayoutPanel2.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 27F));
-            this.tableLayoutPanel2.Size = new System.Drawing.Size(389, 27);
-            this.tableLayoutPanel2.TabIndex = 1;
-            // 
             // ProxyAddrLabel
             // 
             this.ProxyAddrLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
             this.ProxyAddrLabel.AutoSize = true;
-            this.ProxyAddrLabel.Location = new System.Drawing.Point(3, 7);
+            this.ProxyAddrLabel.Location = new System.Drawing.Point(3, 71);
             this.ProxyAddrLabel.Name = "ProxyAddrLabel";
             this.ProxyAddrLabel.Size = new System.Drawing.Size(65, 12);
             this.ProxyAddrLabel.TabIndex = 0;
@@ -158,10 +95,10 @@
             // ProxyServerTextBox
             // 
             this.ProxyServerTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
-            this.ProxyServerTextBox.Location = new System.Drawing.Point(74, 3);
+            this.ProxyServerTextBox.Location = new System.Drawing.Point(74, 67);
             this.ProxyServerTextBox.MaxLength = 512;
             this.ProxyServerTextBox.Name = "ProxyServerTextBox";
-            this.ProxyServerTextBox.Size = new System.Drawing.Size(135, 21);
+            this.ProxyServerTextBox.Size = new System.Drawing.Size(142, 21);
             this.ProxyServerTextBox.TabIndex = 1;
             this.ProxyServerTextBox.WordWrap = false;
             // 
@@ -169,46 +106,27 @@
             // 
             this.ProxyPortLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
             this.ProxyPortLabel.AutoSize = true;
-            this.ProxyPortLabel.Location = new System.Drawing.Point(215, 7);
+            this.ProxyPortLabel.Location = new System.Drawing.Point(222, 71);
             this.ProxyPortLabel.Name = "ProxyPortLabel";
-            this.ProxyPortLabel.Size = new System.Drawing.Size(65, 12);
+            this.ProxyPortLabel.Size = new System.Drawing.Size(77, 12);
             this.ProxyPortLabel.TabIndex = 2;
             this.ProxyPortLabel.Text = "Proxy Port";
             // 
             // ProxyPortTextBox
             // 
             this.ProxyPortTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
-            this.ProxyPortTextBox.Location = new System.Drawing.Point(286, 3);
+            this.ProxyPortTextBox.Location = new System.Drawing.Point(305, 67);
             this.ProxyPortTextBox.MaxLength = 10;
             this.ProxyPortTextBox.Name = "ProxyPortTextBox";
-            this.ProxyPortTextBox.Size = new System.Drawing.Size(100, 21);
+            this.ProxyPortTextBox.Size = new System.Drawing.Size(58, 21);
             this.ProxyPortTextBox.TabIndex = 3;
             this.ProxyPortTextBox.WordWrap = false;
             // 
-            // tableLayoutPanel4
-            // 
-            this.tableLayoutPanel4.AutoSize = true;
-            this.tableLayoutPanel4.ColumnCount = 4;
-            this.tableLayoutPanel4.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel4.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel4.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel4.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
-            this.tableLayoutPanel4.Controls.Add(this.ProxyTypeLabel, 0, 0);
-            this.tableLayoutPanel4.Controls.Add(this.ProxyTypeComboBox, 1, 0);
-            this.tableLayoutPanel4.Controls.Add(this.ProxyTimeoutTextBox, 3, 0);
-            this.tableLayoutPanel4.Controls.Add(this.ProxyTimeoutLabel, 2, 0);
-            this.tableLayoutPanel4.Location = new System.Drawing.Point(3, 25);
-            this.tableLayoutPanel4.Name = "tableLayoutPanel4";
-            this.tableLayoutPanel4.RowCount = 1;
-            this.tableLayoutPanel4.RowStyles.Add(new System.Windows.Forms.RowStyle());
-            this.tableLayoutPanel4.Size = new System.Drawing.Size(387, 30);
-            this.tableLayoutPanel4.TabIndex = 10;
-            // 
             // ProxyTypeLabel
             // 
             this.ProxyTypeLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
             this.ProxyTypeLabel.AutoSize = true;
-            this.ProxyTypeLabel.Location = new System.Drawing.Point(3, 9);
+            this.ProxyTypeLabel.Location = new System.Drawing.Point(3, 40);
             this.ProxyTypeLabel.Name = "ProxyTypeLabel";
             this.ProxyTypeLabel.Size = new System.Drawing.Size(65, 12);
             this.ProxyTypeLabel.TabIndex = 1;
@@ -222,30 +140,86 @@
             this.ProxyTypeComboBox.Items.AddRange(new object[] {
             "SOCKS5",
             "HTTP"});
-            this.ProxyTypeComboBox.Location = new System.Drawing.Point(74, 5);
+            this.ProxyTypeComboBox.Location = new System.Drawing.Point(74, 36);
             this.ProxyTypeComboBox.Margin = new System.Windows.Forms.Padding(3, 5, 3, 5);
             this.ProxyTypeComboBox.Name = "ProxyTypeComboBox";
-            this.ProxyTypeComboBox.Size = new System.Drawing.Size(121, 20);
+            this.ProxyTypeComboBox.Size = new System.Drawing.Size(142, 20);
             this.ProxyTypeComboBox.TabIndex = 2;
             // 
             // ProxyTimeoutTextBox
             // 
             this.ProxyTimeoutTextBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
-            this.ProxyTimeoutTextBox.Location = new System.Drawing.Point(284, 4);
+            this.ProxyTimeoutTextBox.Location = new System.Drawing.Point(305, 36);
             this.ProxyTimeoutTextBox.Name = "ProxyTimeoutTextBox";
-            this.ProxyTimeoutTextBox.Size = new System.Drawing.Size(100, 21);
+            this.ProxyTimeoutTextBox.Size = new System.Drawing.Size(58, 21);
             this.ProxyTimeoutTextBox.TabIndex = 3;
             // 
             // ProxyTimeoutLabel
             // 
             this.ProxyTimeoutLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
             this.ProxyTimeoutLabel.AutoSize = true;
-            this.ProxyTimeoutLabel.Location = new System.Drawing.Point(201, 9);
+            this.ProxyTimeoutLabel.Location = new System.Drawing.Point(222, 40);
             this.ProxyTimeoutLabel.Name = "ProxyTimeoutLabel";
             this.ProxyTimeoutLabel.Size = new System.Drawing.Size(77, 12);
             this.ProxyTimeoutLabel.TabIndex = 4;
             this.ProxyTimeoutLabel.Text = "Timeout(Sec)";
             // 
+            // tableLayoutPanel1
+            // 
+            this.tableLayoutPanel1.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
+            this.tableLayoutPanel1.ColumnCount = 4;
+            this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
+            this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 70F));
+            this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
+            this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 30F));
+            this.tableLayoutPanel1.Controls.Add(this.UseProxyCheckBox, 0, 0);
+            this.tableLayoutPanel1.Controls.Add(this.ProxyTypeLabel, 0, 1);
+            this.tableLayoutPanel1.Controls.Add(this.ProxyPortTextBox, 3, 2);
+            this.tableLayoutPanel1.Controls.Add(this.ProxyTypeComboBox, 1, 1);
+            this.tableLayoutPanel1.Controls.Add(this.ProxyTimeoutLabel, 2, 1);
+            this.tableLayoutPanel1.Controls.Add(this.ProxyPortLabel, 2, 2);
+            this.tableLayoutPanel1.Controls.Add(this.ProxyTimeoutTextBox, 3, 1);
+            this.tableLayoutPanel1.Controls.Add(this.ProxyServerTextBox, 1, 2);
+            this.tableLayoutPanel1.Controls.Add(this.ProxyAddrLabel, 0, 2);
+            this.tableLayoutPanel1.Controls.Add(this.ProxyNotificationLabel, 0, 3);
+            this.tableLayoutPanel1.Controls.Add(this.flowLayoutPanel1, 0, 4);
+            this.tableLayoutPanel1.Location = new System.Drawing.Point(15, 15);
+            this.tableLayoutPanel1.Name = "tableLayoutPanel1";
+            this.tableLayoutPanel1.RowCount = 5;
+            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 21.95122F));
+            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 21.95122F));
+            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 21.95122F));
+            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 34.14634F));
+            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
+            this.tableLayoutPanel1.Size = new System.Drawing.Size(366, 177);
+            this.tableLayoutPanel1.TabIndex = 14;
+            // 
+            // ProxyNotificationLabel
+            // 
+            this.ProxyNotificationLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
+            this.ProxyNotificationLabel.AutoSize = true;
+            this.tableLayoutPanel1.SetColumnSpan(this.ProxyNotificationLabel, 4);
+            this.ProxyNotificationLabel.ForeColor = System.Drawing.Color.Red;
+            this.ProxyNotificationLabel.Location = new System.Drawing.Point(3, 111);
+            this.ProxyNotificationLabel.Name = "ProxyNotificationLabel";
+            this.ProxyNotificationLabel.Size = new System.Drawing.Size(360, 12);
+            this.ProxyNotificationLabel.TabIndex = 5;
+            this.ProxyNotificationLabel.Text = "If server has a plugin, proxy will not be used";
+            // 
+            // flowLayoutPanel1
+            // 
+            this.flowLayoutPanel1.AutoSize = true;
+            this.flowLayoutPanel1.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
+            this.tableLayoutPanel1.SetColumnSpan(this.flowLayoutPanel1, 4);
+            this.flowLayoutPanel1.Controls.Add(this.MyCancelButton);
+            this.flowLayoutPanel1.Controls.Add(this.OKButton);
+            this.flowLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Right;
+            this.flowLayoutPanel1.FlowDirection = System.Windows.Forms.FlowDirection.RightToLeft;
+            this.flowLayoutPanel1.Location = new System.Drawing.Point(204, 145);
+            this.flowLayoutPanel1.Name = "flowLayoutPanel1";
+            this.flowLayoutPanel1.Size = new System.Drawing.Size(159, 29);
+            this.flowLayoutPanel1.TabIndex = 6;
+            // 
             // ProxyForm
             // 
             this.AcceptButton = this.OKButton;
@@ -254,7 +228,7 @@
             this.AutoSize = true;
             this.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
             this.CancelButton = this.MyCancelButton;
-            this.ClientSize = new System.Drawing.Size(441, 165);
+            this.ClientSize = new System.Drawing.Size(448, 231);
             this.Controls.Add(this.tableLayoutPanel1);
             this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
             this.MaximizeBox = false;
@@ -266,32 +240,25 @@
             this.FormClosed += new System.Windows.Forms.FormClosedEventHandler(this.ProxyForm_FormClosed);
             this.tableLayoutPanel1.ResumeLayout(false);
             this.tableLayoutPanel1.PerformLayout();
-            this.tableLayoutPanel3.ResumeLayout(false);
-            this.tableLayoutPanel2.ResumeLayout(false);
-            this.tableLayoutPanel2.PerformLayout();
-            this.tableLayoutPanel4.ResumeLayout(false);
-            this.tableLayoutPanel4.PerformLayout();
+            this.flowLayoutPanel1.ResumeLayout(false);
             this.ResumeLayout(false);
-            this.PerformLayout();
 
         }
 
         #endregion
-
-        private System.Windows.Forms.TableLayoutPanel tableLayoutPanel1;
         private System.Windows.Forms.CheckBox UseProxyCheckBox;
-        private System.Windows.Forms.TableLayoutPanel tableLayoutPanel2;
         private System.Windows.Forms.Label ProxyAddrLabel;
         private System.Windows.Forms.TextBox ProxyServerTextBox;
         private System.Windows.Forms.Label ProxyPortLabel;
         private System.Windows.Forms.TextBox ProxyPortTextBox;
-        private System.Windows.Forms.TableLayoutPanel tableLayoutPanel3;
         private System.Windows.Forms.Button MyCancelButton;
         private System.Windows.Forms.Button OKButton;
-        private System.Windows.Forms.TableLayoutPanel tableLayoutPanel4;
         private System.Windows.Forms.Label ProxyTypeLabel;
         private System.Windows.Forms.ComboBox ProxyTypeComboBox;
         private System.Windows.Forms.TextBox ProxyTimeoutTextBox;
         private System.Windows.Forms.Label ProxyTimeoutLabel;
+        private System.Windows.Forms.TableLayoutPanel tableLayoutPanel1;
+        private System.Windows.Forms.Label ProxyNotificationLabel;
+        private System.Windows.Forms.FlowLayoutPanel flowLayoutPanel1;
     }
 }

shadowsocks-csharp/View/ProxyForm.cs

@@ -36,6 +36,7 @@ namespace Shadowsocks.View
             ProxyAddrLabel.Text = I18N.GetString("Proxy Addr");
             ProxyPortLabel.Text = I18N.GetString("Proxy Port");
             ProxyTimeoutLabel.Text = I18N.GetString("Timeout(Sec)");
+            ProxyNotificationLabel.Text = I18N.GetString("If server has a plugin, proxy will not be used");
             OKButton.Text = I18N.GetString("OK");
             MyCancelButton.Text = I18N.GetString("Cancel");
             this.Text = I18N.GetString("Edit Proxy");

shadowsocks-csharp/shadowsocks-csharp.csproj

@@ -110,6 +110,7 @@
     <Compile Include="Encryption\Stream\StreamSodiumEncryptor.cs" />
     <Compile Include="Model\HotKeyConfig.cs" />
     <Compile Include="Model\ProxyConfig.cs" />
+    <Compile Include="Model\SysproxyConfig.cs" />
     <Compile Include="Properties\Settings.Designer.cs">
       <AutoGen>True</AutoGen>
       <DesignTimeSharedInput>True</DesignTimeSharedInput>
@@ -144,6 +145,7 @@
     <Compile Include="Controller\Strategy\BalancingStrategy.cs" />
     <Compile Include="Controller\Strategy\StrategyManager.cs" />
     <Compile Include="Controller\Strategy\IStrategy.cs" />
+    <Compile Include="Controller\Service\Sip003Plugin.cs" />
     <Compile Include="Proxy\Socks5Proxy.cs" />
     <Compile Include="Settings.cs" />
     <Compile Include="StringEx.cs" />

test/UnitTest.cs

@@ -8,6 +8,7 @@ using System.Threading;
 using System.Collections.Generic;
 using Shadowsocks.Controller.Hotkeys;
 using Shadowsocks.Encryption.Stream;
+using Shadowsocks.Model;
 
 namespace test
 {
@@ -224,5 +225,136 @@ namespace test
                 throw;
             }
         }
+
+        [TestMethod]
+        public void ParseAndGenerateShadowsocksUrl()
+        {
+            var server = new Server
+            {
+                server = "192.168.100.1",
+                server_port = 8888,
+                password = "test",
+                method = "bf-cfb"
+            };
+            var serverCanonUrl = "ss://YmYtY2ZiOnRlc3RAMTkyLjE2OC4xMDAuMTo4ODg4";
+
+            var serverWithRemark = new Server
+            {
+                server = server.server,
+                server_port = server.server_port,
+                password = server.password,
+                method = server.method,
+                remarks = "example-server"
+            };
+            var serverWithRemarkCanonUrl = "ss://YmYtY2ZiOnRlc3RAMTkyLjE2OC4xMDAuMTo4ODg4#example-server";
+
+            var serverWithPlugin = new Server
+            {
+                server = server.server,
+                server_port = server.server_port,
+                password = server.password,
+                method = server.method,
+                plugin = "obfs-local",
+                plugin_opts = "obfs=http;obfs-host=google.com"
+            };
+            var serverWithPluginCanonUrl =
+                "ss://YmYtY2ZiOnRlc3Q@192.168.100.1:8888/?plugin=obfs-local%3bobfs%3dhttp%3bobfs-host%3dgoogle.com";
+
+            var serverWithPluginAndRemark = new Server
+            {
+                server = server.server,
+                server_port = server.server_port,
+                password = server.password,
+                method = server.method,
+                plugin = serverWithPlugin.plugin,
+                plugin_opts = serverWithPlugin.plugin_opts,
+                remarks = serverWithRemark.remarks
+            };
+            var serverWithPluginAndRemarkCanonUrl =
+                "ss://YmYtY2ZiOnRlc3Q@192.168.100.1:8888/?plugin=obfs-local%3bobfs%3dhttp%3bobfs-host%3dgoogle.com#example-server";
+
+            RunParseShadowsocksUrlTest(
+                string.Join(
+                    "\r\n",
+                    serverCanonUrl,
+                    "\r\n",
+                    "ss://YmYtY2ZiOnRlc3RAMTkyLjE2OC4xMDAuMTo4ODg4/",
+                    serverWithRemarkCanonUrl,
+                    "ss://YmYtY2ZiOnRlc3RAMTkyLjE2OC4xMDAuMTo4ODg4/#example-server"),
+                new[]
+                {
+                    server,
+                    server,
+                    serverWithRemark,
+                    serverWithRemark
+                });
+
+            RunParseShadowsocksUrlTest(
+                string.Join(
+                    "\r\n",
+                    "ss://YmYtY2ZiOnRlc3Q@192.168.100.1:8888",
+                    "\r\n",
+                    "ss://YmYtY2ZiOnRlc3Q@192.168.100.1:8888/",
+                    "ss://YmYtY2ZiOnRlc3Q@192.168.100.1:8888#example-server",
+                    "ss://YmYtY2ZiOnRlc3Q@192.168.100.1:8888/#example-server",
+                    serverWithPluginCanonUrl,
+                    serverWithPluginAndRemarkCanonUrl,
+                    "ss://YmYtY2ZiOnRlc3Q@192.168.100.1:8888/?plugin=obfs-local%3bobfs%3dhttp%3bobfs-host%3dgoogle.com&unsupported=1#example-server"),
+                new[]
+                {
+                    server,
+                    server,
+                    serverWithRemark,
+                    serverWithRemark,
+                    serverWithPlugin,
+                    serverWithPluginAndRemark,
+                    serverWithPluginAndRemark
+                });
+
+            var generateUrlCases = new Dictionary<string, Server>
+            {
+                [serverCanonUrl] = server,
+                [serverWithRemarkCanonUrl] = serverWithRemark,
+                [serverWithPluginCanonUrl] = serverWithPlugin,
+                [serverWithPluginAndRemarkCanonUrl] = serverWithPluginAndRemark
+            };
+            RunGenerateShadowsocksUrlTest(generateUrlCases);
+        }
+
+        private static void RunParseShadowsocksUrlTest(string testCase, IReadOnlyList<Server> expected)
+        {
+            var actual = Server.GetServers(testCase);
+            if (actual.Count != expected.Count)
+            {
+                Assert.Fail("Wrong number of configs. Expected: {0}. Actual: {1}", expected.Count, actual.Count);
+            }
+
+            for (int i = 0; i < expected.Count; i++)
+            {
+                var expectedServer = expected[i];
+                var actualServer = actual[i];
+
+                Assert.AreEqual(expectedServer.server, actualServer.server);
+                Assert.AreEqual(expectedServer.server_port, actualServer.server_port);
+                Assert.AreEqual(expectedServer.password, actualServer.password);
+                Assert.AreEqual(expectedServer.method, actualServer.method);
+                Assert.AreEqual(expectedServer.plugin, actualServer.plugin);
+                Assert.AreEqual(expectedServer.plugin_opts, actualServer.plugin_opts);
+                Assert.AreEqual(expectedServer.remarks, actualServer.remarks);
+                Assert.AreEqual(expectedServer.timeout, actualServer.timeout);
+            }
+        }
+
+        private static void RunGenerateShadowsocksUrlTest(IReadOnlyDictionary<string, Server> testCases)
+        {
+            foreach (var testCase in testCases)
+            {
+                string expected = testCase.Key;
+                Server config = testCase.Value;
+
+                var actual = ShadowsocksController.GetQRCode(config);
+                Assert.AreEqual(expected, actual);
+            }
+        }
     }
 }