Merge pull request #316 from icylogic/release/2.5.7

Release/2.5.7

CHANGES

@@ -1,3 +1,15 @@
+2.5.7 2015-09-19
+- Fix repeated IV.
+
+2.5.6 2015-08-19
+- Add portable mode. Create shadowsocks_portable_mode.txt to use it
+- Support server reorder
+
+2.5.5 2015-08-17
+- Fix crash when enabling Availability Statistics and some servers can not be resolved
+- Allow multiple instances
+- Other fixes
+
 2.5.4 2015-08-16
 - Hide Privoxy icon
 

README.md

@@ -3,6 +3,8 @@ Shadowsocks for Windows
 
 [![Build Status]][Appveyor]
 
+[中文说明]
+
 #### Features
 
 1. System proxy configuration
@@ -46,6 +48,24 @@ with any editor, Shadowsocks will notify browsers about the change automatically
 For UDP, you need to use SocksCap or ProxyCap to force programs you want
 to be proxied to tunnel over Shadowsocks
 
+#### Multiple Instances
+
+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.
+
+Also, make sure to use `SOCKS5` proxy in SwitchyOmega, since we have only
+one HTTP proxy instance.
+
+#### Server Configuration
+
+Please visit [Servers] for more information.
+
+#### Portable Mode
+
+If you want to put all temporary files into shadowsocks/temp folder instead of
+system temp folder, create a `shadowsocks_portable_mode.txt` into shadowsocks folder.
+
 #### Develop
 
 Visual Studio 2015 is required.
@@ -55,7 +75,9 @@ Visual Studio 2015 is required.
 GPLv3
 
 
-[Appveyor]:       https://ci.appveyor.com/project/clowwindy/shadowsocks-csharp
-[Build Status]:   https://ci.appveyor.com/api/projects/status/gknc8l1lxy423ehv/branch/master
+[Appveyor]:       https://ci.appveyor.com/project/icylogic/shadowsocks-windows-l9mwe
+[Build Status]:   https://ci.appveyor.com/api/projects/status/ytllr9yjkbpc2tu2/branch/master
 [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

shadowsocks-csharp/Controller/I18N.cs

@@ -12,7 +12,7 @@ namespace Shadowsocks.Controller
         static I18N()
         {
             Strings = new Dictionary<string, string>();
-            
+
             if (System.Globalization.CultureInfo.CurrentCulture.IetfLanguageTag.ToLowerInvariant().StartsWith("zh"))
             {
                 string[] lines = Regex.Split(Resources.cn, "\r\n|\r|\n");

shadowsocks-csharp/Controller/Logging.cs

@@ -1,4 +1,5 @@
-using System;
+using Shadowsocks.Util;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Net.Sockets;
@@ -14,14 +15,14 @@ namespace Shadowsocks.Controller
         {
             try
             {
-                string temppath = Path.GetTempPath();
+                string temppath = Utils.GetTempPath();
                 LogFile = Path.Combine(temppath, "shadowsocks.log");
                 FileStream fs = new FileStream(LogFile, FileMode.Append);
                 StreamWriterWithTimestamp sw = new StreamWriterWithTimestamp(fs);
                 sw.AutoFlush = true;
                 Console.SetOut(sw);
                 Console.SetError(sw);
-                
+
                 return true;
             }
             catch (IOException e)
@@ -71,7 +72,6 @@ namespace Shadowsocks.Controller
                 Console.WriteLine(e);
             }
         }
-
     }
 
     // Simply extended System.IO.StreamWriter for adding timestamp workaround

shadowsocks-csharp/Controller/Service/AvailabilityStatistics.cs

@@ -6,6 +6,7 @@ using System.Net.NetworkInformation;
 using System.Threading;
 using Shadowsocks.Model;
 using System.Reflection;
+using Shadowsocks.Util;
 
 namespace Shadowsocks.Controller
 {
@@ -25,7 +26,7 @@ namespace Shadowsocks.Controller
         //static constructor to initialize every public static fields before refereced
         static AvailabilityStatistics()
         {
-            string temppath = Path.GetTempPath();
+            string temppath = Utils.GetTempPath();
             AvailabilityStatisticsFile = Path.Combine(temppath, StatisticsFilesName);
         }
 
@@ -80,6 +81,7 @@ namespace Shadowsocks.Controller
                     }
                     catch (Exception e)
                     {
+                        Console.WriteLine($"An exception occured when eveluating {server.FriendlyName()}");
                         Logging.LogUsefulException(e);
                     }
                 }

shadowsocks-csharp/Controller/Service/Listener.cs

@@ -77,7 +77,6 @@ namespace Shadowsocks.Controller
                 _udpSocket.Bind(localEndPoint);
                 _tcpSocket.Listen(1024);
 
-
                 // Start an asynchronous socket to listen for connections.
                 Console.WriteLine("Shadowsocks started");
                 _tcpSocket.BeginAccept(
@@ -185,7 +184,6 @@ namespace Shadowsocks.Controller
             }
         }
 
-
         private void ReceiveCallback(IAsyncResult ar)
         {
             object[] state = (object[])ar.AsyncState;

shadowsocks-csharp/Controller/Service/PACServer.cs

@@ -86,7 +86,6 @@ namespace Shadowsocks.Controller
             }
         }
 
-
         public string TouchPACFile()
         {
             if (File.Exists(PAC_FILE))
@@ -146,7 +145,7 @@ Connection: Close
 ", System.Text.Encoding.UTF8.GetBytes(pac).Length) + pac;
                 byte[] response = System.Text.Encoding.UTF8.GetBytes(text);
                 socket.BeginSend(response, 0, response.Length, 0, new AsyncCallback(SendCallback), socket);
-                Util.Utils.ReleaseMemory();
+                Util.Utils.ReleaseMemory(true);
             }
             catch (Exception e)
             {

shadowsocks-csharp/Controller/Service/PolipoRunner.cs

@@ -9,6 +9,7 @@ using System.Text;
 using System.Net.NetworkInformation;
 using System.Net;
 using System.Runtime.InteropServices;
+using Shadowsocks.Util;
 
 namespace Shadowsocks.Controller
 {
@@ -20,7 +21,7 @@ namespace Shadowsocks.Controller
 
         static PolipoRunner()
         {
-            temppath = Path.GetTempPath();
+            temppath = Utils.GetTempPath();
             try
             {
                 FileManager.UncompressFile(temppath + "/ss_privoxy.exe", Resources.privoxy_exe);
@@ -147,7 +148,6 @@ namespace Shadowsocks.Controller
         [DllImport("user32.dll")]
         public static extern IntPtr SendMessage(IntPtr hWnd, uint msg, int wParam, int lParam);
 
-
         public void RefreshTrayArea()
         {
             IntPtr systemTrayContainerHandle = FindWindow("Shell_TrayWnd", null);
@@ -164,7 +164,6 @@ namespace Shadowsocks.Controller
             RefreshTrayArea(notificationAreaHandle);
         }
 
-
         private static void RefreshTrayArea(IntPtr windowHandle)
         {
             const uint wmMousemove = 0x0200;

shadowsocks-csharp/Controller/Service/PortForwarder.cs

@@ -103,7 +103,6 @@ namespace Shadowsocks.Controller
                 }
             }
 
-
             private void StartPipe(IAsyncResult ar)
             {
                 if (_closed)

shadowsocks-csharp/Controller/Service/TCPRelay.cs

@@ -14,9 +14,18 @@ namespace Shadowsocks.Controller
     class TCPRelay : Listener.Service
     {
         private ShadowsocksController _controller;
+        private DateTime _lastSweepTime;
+
+        public ISet<Handler> Handlers
+        {
+            get; set;
+        }
+
         public TCPRelay(ShadowsocksController controller)
         {
             this._controller = controller;
+            this.Handlers = new HashSet<Handler>();
+            this._lastSweepTime = DateTime.Now;
         }
 
         public bool Handle(byte[] firstPacket, int length, Socket socket, object state)
@@ -33,9 +42,33 @@ namespace Shadowsocks.Controller
             Handler handler = new Handler();
             handler.connection = socket;
             handler.controller = _controller;
+            handler.relay = this;
 
             handler.Start(firstPacket, length);
-            return true;
+            IList<Handler> handlersToClose = new List<Handler>();
+            lock (this.Handlers)
+            {
+                this.Handlers.Add(handler);
+                Logging.Debug($"connections: {Handlers.Count}");
+                DateTime now = DateTime.Now;
+                if (now - _lastSweepTime > TimeSpan.FromSeconds(1))
+                {
+                    _lastSweepTime = now;
+                    foreach (Handler handler1 in this.Handlers)
+                    {
+                        if (now - handler1.lastActivity > TimeSpan.FromSeconds(900))
+                        {
+                            handlersToClose.Add(handler1);
+                        }
+                    }
+                }
+            }
+            foreach (Handler handler1 in handlersToClose)
+            {
+                Logging.Debug("Closing timed out connection");
+                handler1.Close();
+            }
+        return true;
         }
     }
 
@@ -48,6 +81,10 @@ namespace Shadowsocks.Controller
         public Socket remote;
         public Socket connection;
         public ShadowsocksController controller;
+        public TCPRelay relay;
+
+        public DateTime lastActivity;
+
         private int retryCount = 0;
         private bool connected;
 
@@ -55,7 +92,7 @@ namespace Shadowsocks.Controller
         private byte[] _firstPacket;
         private int _firstPacketLength;
         // Size of receive buffer.
-        public const int RecvSize = 16384;
+        public const int RecvSize = 8192;
         public const int BufferSize = RecvSize + 32;
 
         private int totalRead = 0;
@@ -74,7 +111,7 @@ namespace Shadowsocks.Controller
         private bool connectionShutdown = false;
         private bool remoteShutdown = false;
         private bool closed = false;
-        
+
         private object encryptionLock = new object();
         private object decryptionLock = new object();
 
@@ -96,6 +133,7 @@ namespace Shadowsocks.Controller
             this._firstPacket = firstPacket;
             this._firstPacketLength = length;
             this.HandshakeReceive();
+            this.lastActivity = DateTime.Now;
         }
 
         private void CheckClose()
@@ -108,6 +146,11 @@ namespace Shadowsocks.Controller
 
         public void Close()
         {
+            lock (relay.Handlers)
+            {
+                Logging.Debug($"connections: {relay.Handlers.Count}");
+                relay.Handlers.Remove(this);
+            }
             lock (this)
             {
                 if (closed)
@@ -152,7 +195,6 @@ namespace Shadowsocks.Controller
             }
         }
 
-
         private void HandshakeReceive()
         {
             if (closed)
@@ -222,7 +264,7 @@ namespace Shadowsocks.Controller
             try
             {
                 int bytesRead = connection.EndReceive(ar);
-                
+
                 if (bytesRead >= 3)
                 {
                     command = connetionRecvBuffer[1];
@@ -272,7 +314,6 @@ namespace Shadowsocks.Controller
 
         private void ReadAll(IAsyncResult ar)
         {
-
             if (closed)
             {
                 return;
@@ -347,7 +388,6 @@ namespace Shadowsocks.Controller
                 }
                 IPEndPoint remoteEP = new IPEndPoint(ipAddress, server.server_port);
 
-
                 remote = new Socket(ipAddress.AddressFamily,
                     SocketType.Stream, ProtocolType.Tcp);
                 remote.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
@@ -485,6 +525,7 @@ namespace Shadowsocks.Controller
 
                 if (bytesRead > 0)
                 {
+                    this.lastActivity = DateTime.Now;
                     int bytesToSend;
                     lock (decryptionLock)
                     {
@@ -548,7 +589,6 @@ namespace Shadowsocks.Controller
                     }
                     remote.BeginSend(connetionSendBuffer, 0, bytesToSend, 0, new AsyncCallback(PipeRemoteSendCallback), null);
 
-
                     IStrategy strategy = controller.GetCurrentStrategy();
                     if (strategy != null)
                     {
@@ -607,5 +647,4 @@ namespace Shadowsocks.Controller
             }
         }
     }
-
 }

shadowsocks-csharp/Controller/Service/UDPRelay.cs

@@ -108,9 +108,11 @@ namespace Shadowsocks.Controller
                 }
                 catch (ObjectDisposedException)
                 {
+                    // TODO: handle the ObjectDisposedException
                 }
                 catch (Exception)
                 {
+                    // TODO: need more think about handle other Exceptions, or should remove this catch().
                 }
                 finally
                 {
@@ -124,9 +126,11 @@ namespace Shadowsocks.Controller
                 }
                 catch (ObjectDisposedException)
                 {
+                    // TODO: handle the ObjectDisposedException
                 }
                 catch (Exception)
                 {
+                    // TODO: need more think about handle other Exceptions, or should remove this catch().
                 }
                 finally
                 {
@@ -134,6 +138,8 @@ namespace Shadowsocks.Controller
             }
         }
     }
+
+
     // cc by-sa 3.0 http://stackoverflow.com/a/3719378/1124054
     class LRUCache<K, V> where V : UDPRelay.UDPHandler
     {
@@ -196,5 +202,4 @@ namespace Shadowsocks.Controller
         public K key;
         public V value;
     }
-
 }

shadowsocks-csharp/Controller/Service/UpdateChecker.cs

@@ -18,7 +18,7 @@ namespace Shadowsocks.Controller
         public string LatestVersionURL;
         public event EventHandler NewVersionFound;
 
-        public const string Version = "2.5.5";
+        public const string Version = "2.5.7";
 
         public void CheckUpdate(Configuration config)
         {
@@ -53,7 +53,6 @@ namespace Shadowsocks.Controller
             {
                 return CompareVersion(ParseVersionFromURL(x), ParseVersionFromURL(y));
             }
-
         }
 
         private static string ParseVersionFromURL(string url)

shadowsocks-csharp/Controller/ShadowsocksController.cs

@@ -39,7 +39,7 @@ namespace Shadowsocks.Controller
         public event EventHandler EnableStatusChanged;
         public event EventHandler EnableGlobalChanged;
         public event EventHandler ShareOverLANStatusChanged;
-        
+
         // when user clicked Edit PAC, and PAC file has already created
         public event EventHandler<PathEventArgs> PACFileReadyToOpen;
         public event EventHandler<PathEventArgs> UserRuleFileReadyToOpen;
@@ -360,17 +360,15 @@ namespace Shadowsocks.Controller
             }
 
             UpdateSystemProxy();
-            Util.Utils.ReleaseMemory();
+            Util.Utils.ReleaseMemory(true);
         }
 
-
         protected void SaveConfig(Configuration newConfig)
         {
             Configuration.Save(newConfig);
             Reload();
         }
 
-
         private void UpdateSystemProxy()
         {
             if (_config.enabled)
@@ -417,7 +415,7 @@ namespace Shadowsocks.Controller
         {
             while (true)
             {
-                Util.Utils.ReleaseMemory();
+                Util.Utils.ReleaseMemory(false);
                 Thread.Sleep(30 * 1000);
             }
         }

shadowsocks-csharp/Controller/Strategy/IStrategy.cs

@@ -14,17 +14,17 @@ namespace Shadowsocks.Controller.Strategy
 
     /*
      * IStrategy
-     * 
+     *
      * Subclasses must be thread-safe
      */
     public interface IStrategy
     {
         string Name { get; }
-        
+
         string ID { get; }
 
         /*
-         * Called when servers need to be reloaded, i.e. new configuration saved 
+         * Called when servers need to be reloaded, i.e. new configuration saved
          */
         void ReloadServers();
 

shadowsocks-csharp/Controller/Strategy/SimplyChooseByStatisticsStrategy.cs

@@ -112,7 +112,7 @@ namespace Shadowsocks.Controller.Strategy
                                   ).Aggregate((result1, result2) => result1.score > result2.score ? result1 : result2);
 
                 if (_controller.GetCurrentStrategy().ID == ID && _currentServer != bestResult.server) //output when enabled
-                {  
+                {
                     Console.WriteLine("Switch to server: {0} by package loss:{1}", bestResult.server.FriendlyName(), 1 - bestResult.score);
                 }
                 _currentServer = bestResult.server;

shadowsocks-csharp/Data/cn.txt

@@ -42,6 +42,19 @@ Remarks=备注
 OK=确定
 Cancel=取消
 New server=未配置的服务器
+Move &Up=上移(&U)
+Move D&own=下移(&O)
+
+# Log Form
+
+&File=文件(&F)
+&Open Location=在资源管理器中打开(&O)
+E&xit=退出(&X)
+&Clean logs=清空(&C)
+&Font=字体(&F)
+&Wrap text=自动换行(&W)
+&Top most=置顶(&T)
+Log Viewer=日志查看器
 
 # QRCode Form
 
@@ -75,8 +88,8 @@ No updates found. Please report to GFWList if you have problems with it.=未发
 No QRCode found. Try to zoom in or move it to the center of the screen.=未发现二维码，尝试把它放大或移动到靠近屏幕中间的位置
 Shadowsocks is already running.=Shadowsocks 已经在运行。
 Find Shadowsocks icon in your notify tray.=请在任务栏里寻找 Shadowsocks 图标。
-If you want to start multiple Shadowsocks, make a copy in another directory.=如果想启动多份，可以另外复制一份到别的目录。
+If you want to start multiple Shadowsocks, make a copy in another directory.=如果想同时启动多个，可以另外复制一份到别的目录。
 Failed to decode QRCode=无法解析二维码
 Failed to update registry=无法修改注册表
 System Proxy On: =系统代理已启用：
-Running: Port {0}=正在运行：端口 {0}
+Running: Port {0}=正在运行：端口 {0}

shadowsocks-csharp/Encryption/IVEncryptor.cs

@@ -26,7 +26,6 @@ namespace Shadowsocks.Encryption
         protected int keyLen;
         protected int ivLen;
 
-
         public IVEncryptor(string method, string password)
             : base(method, password)
         {
@@ -89,7 +88,8 @@ namespace Shadowsocks.Encryption
         protected static void randBytes(byte[] buf, int length)
         {
             byte[] temp = new byte[length];
-            new Random().NextBytes(temp);
+            RNGCryptoServiceProvider rngServiceProvider = new RNGCryptoServiceProvider();
+            rngServiceProvider.GetBytes(temp);
             temp.CopyTo(buf, 0);
         }
 

shadowsocks-csharp/Encryption/PolarSSL.cs

@@ -1,5 +1,6 @@
 using Shadowsocks.Controller;
 using Shadowsocks.Properties;
+using Shadowsocks.Util;
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -18,7 +19,7 @@ namespace Shadowsocks.Encryption
 
         static PolarSSL()
         {
-            string tempPath = Path.GetTempPath();
+            string tempPath = Utils.GetTempPath();
             string dllPath = tempPath + "/libsscrypto.dll";
             try
             {
@@ -49,7 +50,6 @@ namespace Shadowsocks.Encryption
         [DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]
         public extern static int aes_crypt_cfb128(IntPtr ctx, int mode, int length, ref int iv_off, byte[] iv, byte[] input, byte[] output);
 
-
         public const int ARC4_CTX_SIZE = 264;
 
         [DllImport(DLLNAME, CallingConvention = CallingConvention.Cdecl)]

shadowsocks-csharp/Encryption/Sodium.cs

@@ -1,5 +1,6 @@
 using Shadowsocks.Controller;
 using Shadowsocks.Properties;
+using Shadowsocks.Util;
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -14,7 +15,7 @@ namespace Shadowsocks.Encryption
 
         static Sodium()
         {
-            string tempPath = Path.GetTempPath();
+            string tempPath = Utils.GetTempPath();
             string dllPath = tempPath + "/libsscrypto.dll";
             try
             {

shadowsocks-csharp/Encryption/SodiumEncryptor.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Text;
+using System.Threading;
 
 namespace Shadowsocks.Encryption
 {
@@ -12,19 +13,17 @@ namespace Shadowsocks.Encryption
 
         const int SODIUM_BLOCK_SIZE = 64;
 
+        static byte[] sodiumBuf = new byte[MAX_INPUT_SIZE + SODIUM_BLOCK_SIZE];
+
         protected int _encryptBytesRemaining;
         protected int _decryptBytesRemaining;
         protected ulong _encryptIC;
         protected ulong _decryptIC;
-        protected byte[] _encryptBuf;
-        protected byte[] _decryptBuf;
 
         public SodiumEncryptor(string method, string password)
             : base(method, password)
         {
             InitKey(method, password);
-            _encryptBuf = new byte[MAX_INPUT_SIZE + SODIUM_BLOCK_SIZE];
-            _decryptBuf = new byte[MAX_INPUT_SIZE + SODIUM_BLOCK_SIZE];
         }
 
         private static Dictionary<string, int[]> _ciphers = new Dictionary<string, int[]> {
@@ -47,48 +46,51 @@ namespace Shadowsocks.Encryption
             // TODO write a unidirection cipher so we don't have to if if if
             int bytesRemaining;
             ulong ic;
-            byte[] sodiumBuf;
             byte[] iv;
-            if (isCipher)
-            {
-                bytesRemaining = _encryptBytesRemaining;
-                ic = _encryptIC;
-                sodiumBuf = _encryptBuf;
-                iv = _encryptIV;
-            }
-            else
-            {
-                bytesRemaining = _decryptBytesRemaining;
-                ic = _decryptIC;
-                sodiumBuf = _decryptBuf;
-                iv = _decryptIV;
-            }
-            int padding = bytesRemaining;
-            Buffer.BlockCopy(buf, 0, sodiumBuf, padding, length);
 
-            switch (_cipher)
+            // I'm tired. just add a big lock
+            // let's optimize for RAM instead of CPU
+            lock(sodiumBuf)
             {
-                case CIPHER_SALSA20:
-                    Sodium.crypto_stream_salsa20_xor_ic(sodiumBuf, sodiumBuf, (ulong)(padding + length), iv, ic, _key);
-                    break;
-                case CIPHER_CHACHA20:
-                    Sodium.crypto_stream_chacha20_xor_ic(sodiumBuf, sodiumBuf, (ulong)(padding + length), iv, ic, _key);
-                    break;
-            }
-            Buffer.BlockCopy(sodiumBuf, padding, outbuf, 0, length);
-            padding += length;
-            ic += (ulong)padding / SODIUM_BLOCK_SIZE;
-            bytesRemaining = padding % SODIUM_BLOCK_SIZE;
+                if (isCipher)
+                {
+                    bytesRemaining = _encryptBytesRemaining;
+                    ic = _encryptIC;
+                    iv = _encryptIV;
+                }
+                else
+                {
+                    bytesRemaining = _decryptBytesRemaining;
+                    ic = _decryptIC;
+                    iv = _decryptIV;
+                }
+                int padding = bytesRemaining;
+                Buffer.BlockCopy(buf, 0, sodiumBuf, padding, length);
 
-            if (isCipher)
-            {
-                _encryptBytesRemaining = bytesRemaining;
-                _encryptIC = ic;
-            }
-            else
-            {
-                _decryptBytesRemaining = bytesRemaining;
-                _decryptIC = ic;
+                switch (_cipher)
+                {
+                    case CIPHER_SALSA20:
+                        Sodium.crypto_stream_salsa20_xor_ic(sodiumBuf, sodiumBuf, (ulong)(padding + length), iv, ic, _key);
+                        break;
+                    case CIPHER_CHACHA20:
+                        Sodium.crypto_stream_chacha20_xor_ic(sodiumBuf, sodiumBuf, (ulong)(padding + length), iv, ic, _key);
+                        break;
+                }
+                Buffer.BlockCopy(sodiumBuf, padding, outbuf, 0, length);
+                padding += length;
+                ic += (ulong)padding / SODIUM_BLOCK_SIZE;
+                bytesRemaining = padding % SODIUM_BLOCK_SIZE;
+
+                if (isCipher)
+                {
+                    _encryptBytesRemaining = bytesRemaining;
+                    _encryptIC = ic;
+                }
+                else
+                {
+                    _decryptBytesRemaining = bytesRemaining;
+                    _decryptIC = ic;
+                }
             }
         }
 

shadowsocks-csharp/Encryption/TableEncryptor.cs

@@ -41,7 +41,6 @@ namespace Shadowsocks.Encryption
             outlength = length;
         }
 
-
         public override void Decrypt(byte[] buf, int length, byte[] outbuf, out int outlength)
         {
             byte[] result = new byte[length];
@@ -100,7 +99,6 @@ namespace Shadowsocks.Encryption
             return sorted;
         }
 
-
         public override void Dispose()
         {
         }

shadowsocks-csharp/Program.cs

@@ -18,7 +18,7 @@ namespace Shadowsocks
         [STAThread]
         static void Main()
         {
-            Util.Utils.ReleaseMemory();
+            Util.Utils.ReleaseMemory(true);
             using (Mutex mutex = new Mutex(false, "Global\\Shadowsocks_" + Application.StartupPath.GetHashCode()))
             {
                 Application.EnableVisualStyles();

shadowsocks-csharp/Util/Util.cs

@@ -5,12 +5,31 @@ using System.IO;
 using System.IO.Compression;
 using System.Runtime.InteropServices;
 using System.Text;
+using System.Windows.Forms;
 
 namespace Shadowsocks.Util
 {
     public class Utils
     {
-        public static void ReleaseMemory()
+        // return path to store temporary files
+        public static string GetTempPath()
+        {
+            if (File.Exists(Application.StartupPath + "\\shadowsocks_portable_mode.txt"))
+            {
+                try
+                {
+                    Directory.CreateDirectory(Application.StartupPath + "\\temp");
+                } catch (Exception e)
+                {
+                    Console.WriteLine(e);
+                }
+                // don't use "/", it will fail when we call explorer /select xxx/temp\xxx.log
+                return Application.StartupPath + "\\temp";
+            }
+            return Path.GetTempPath();
+        }
+
+        public static void ReleaseMemory(bool removePages)
         {
             // release any unused pages
             // making the numbers look good in task manager
@@ -20,8 +39,29 @@ namespace Shadowsocks.Util
             // which is part of user experience
             GC.Collect(GC.MaxGeneration);
             GC.WaitForPendingFinalizers();
-            SetProcessWorkingSetSize(Process.GetCurrentProcess().Handle,
-                (UIntPtr)0xFFFFFFFF, (UIntPtr)0xFFFFFFFF);
+            if (removePages)
+            {
+                // as some users have pointed out
+                // removing pages from working set will cause some IO
+                // which lowered user experience for another group of users
+                //
+                // so we do 2 more things here to satisfy them:
+                // 1. only remove pages once when configuration is changed
+                // 2. add more comments here to tell users that calling
+                //    this function will not be more frequent than
+                //    IM apps writing chat logs, or web browsers writing cache files
+                //    if they're so concerned about their disk, they should
+                //    uninstall all IM apps and web browsers
+                //
+                // please open an issue if you're worried about anything else in your computer
+                // no matter it's GPU performance, monitor contrast, audio fidelity
+                // or anything else in the task manager
+                // we'll do as much as we can to help you
+                //
+                // just kidding
+                SetProcessWorkingSetSize(Process.GetCurrentProcess().Handle,
+                    (UIntPtr)0xFFFFFFFF, (UIntPtr)0xFFFFFFFF);
+            }
         }
 
         public static string UnGzip(byte[] buf)

shadowsocks-csharp/View/ConfigForm.Designer.cs

@@ -47,6 +47,9 @@
             this.ServerGroupBox = new System.Windows.Forms.GroupBox();
             this.ServersListBox = new System.Windows.Forms.ListBox();
             this.tableLayoutPanel2 = new System.Windows.Forms.TableLayoutPanel();
+            this.tableLayoutPanel6 = new System.Windows.Forms.TableLayoutPanel();
+            this.MoveDownButton = new System.Windows.Forms.Button();
+            this.MoveUpButton = new System.Windows.Forms.Button();
             this.tableLayoutPanel5 = new System.Windows.Forms.TableLayoutPanel();
             this.ProxyPortTextBox = new System.Windows.Forms.TextBox();
             this.ProxyPortLabel = new System.Windows.Forms.Label();
@@ -55,6 +58,7 @@
             this.tableLayoutPanel1.SuspendLayout();
             this.ServerGroupBox.SuspendLayout();
             this.tableLayoutPanel2.SuspendLayout();
+            this.tableLayoutPanel6.SuspendLayout();
             this.tableLayoutPanel5.SuspendLayout();
             this.tableLayoutPanel3.SuspendLayout();
             this.tableLayoutPanel4.SuspendLayout();
@@ -184,7 +188,7 @@
             // 
             // EncryptionSelect
             // 
-            this.EncryptionSelect.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left) 
+            this.EncryptionSelect.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
             | System.Windows.Forms.AnchorStyles.Right)));
             this.EncryptionSelect.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
             this.EncryptionSelect.FormattingEnabled = true;
@@ -281,6 +285,7 @@
             // 
             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";
@@ -295,6 +300,7 @@
             this.tableLayoutPanel2.ColumnCount = 2;
             this.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
             this.tableLayoutPanel2.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
+            this.tableLayoutPanel2.Controls.Add(this.tableLayoutPanel6, 0, 2);
             this.tableLayoutPanel2.Controls.Add(this.tableLayoutPanel5, 1, 1);
             this.tableLayoutPanel2.Controls.Add(this.tableLayoutPanel3, 1, 2);
             this.tableLayoutPanel2.Controls.Add(this.ServersListBox, 0, 0);
@@ -310,6 +316,48 @@
             this.tableLayoutPanel2.Size = new System.Drawing.Size(427, 238);
             this.tableLayoutPanel2.TabIndex = 7;
             // 
+            // tableLayoutPanel6
+            // 
+            this.tableLayoutPanel6.AutoSize = true;
+            this.tableLayoutPanel6.AutoSizeMode = System.Windows.Forms.AutoSizeMode.GrowAndShrink;
+            this.tableLayoutPanel6.ColumnCount = 2;
+            this.tableLayoutPanel6.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
+            this.tableLayoutPanel6.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle());
+            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, 211);
+            this.tableLayoutPanel6.Margin = new System.Windows.Forms.Padding(0);
+            this.tableLayoutPanel6.Name = "tableLayoutPanel6";
+            this.tableLayoutPanel6.RowCount = 1;
+            this.tableLayoutPanel6.RowStyles.Add(new System.Windows.Forms.RowStyle());
+            this.tableLayoutPanel6.Size = new System.Drawing.Size(166, 32);
+            this.tableLayoutPanel6.TabIndex = 10;
+            // 
+            // MoveDownButton
+            // 
+            this.MoveDownButton.Dock = System.Windows.Forms.DockStyle.Right;
+            this.MoveDownButton.Location = new System.Drawing.Point(86, 6);
+            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 = 7;
+            this.MoveDownButton.Text = "Move D&own";
+            this.MoveDownButton.UseVisualStyleBackColor = true;
+            this.MoveDownButton.Click += new System.EventHandler(this.MoveDownButton_Click);
+            // 
+            // MoveUpButton
+            // 
+            this.MoveUpButton.Dock = System.Windows.Forms.DockStyle.Left;
+            this.MoveUpButton.Location = new System.Drawing.Point(0, 6);
+            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 = 6;
+            this.MoveUpButton.Text = "Move &Up";
+            this.MoveUpButton.UseVisualStyleBackColor = true;
+            this.MoveUpButton.Click += new System.EventHandler(this.MoveUpButton_Click);
+            // 
             // tableLayoutPanel5
             // 
             this.tableLayoutPanel5.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
@@ -418,6 +466,7 @@
             this.ServerGroupBox.PerformLayout();
             this.tableLayoutPanel2.ResumeLayout(false);
             this.tableLayoutPanel2.PerformLayout();
+            this.tableLayoutPanel6.ResumeLayout(false);
             this.tableLayoutPanel5.ResumeLayout(false);
             this.tableLayoutPanel5.PerformLayout();
             this.tableLayoutPanel3.ResumeLayout(false);
@@ -453,6 +502,9 @@
         private System.Windows.Forms.TableLayoutPanel tableLayoutPanel5;
         private System.Windows.Forms.TextBox ProxyPortTextBox;
         private System.Windows.Forms.Label ProxyPortLabel;
+        private System.Windows.Forms.TableLayoutPanel tableLayoutPanel6;
+        private System.Windows.Forms.Button MoveDownButton;
+        private System.Windows.Forms.Button MoveUpButton;
     }
 }
 

shadowsocks-csharp/View/ConfigForm.cs

@@ -18,7 +18,7 @@ namespace Shadowsocks.View
 
         // this is a copy of configuration that we are working on
         private Configuration _modifiedConfiguration;
-        private int _oldSelectedIndex = -1;
+        private int _lastSelectedIndex = -1;
 
         public ConfigForm(ShadowsocksController controller)
         {
@@ -51,6 +51,8 @@ namespace Shadowsocks.View
             ServerGroupBox.Text = I18N.GetString("Server");
             OKButton.Text = I18N.GetString("OK");
             MyCancelButton.Text = I18N.GetString("Cancel");
+            MoveUpButton.Text = I18N.GetString("Move &Up");
+            MoveDownButton.Text = I18N.GetString("Move D&own");
             this.Text = I18N.GetString("Edit Servers");
         }
 
@@ -58,7 +60,7 @@ namespace Shadowsocks.View
         {
             LoadCurrentConfiguration();
         }
-        
+
         private void ShowWindow()
         {
             this.Opacity = 1;
@@ -70,7 +72,7 @@ namespace Shadowsocks.View
         {
             try
             {
-                if (_oldSelectedIndex == -1 || _oldSelectedIndex >= _modifiedConfiguration.configs.Count)
+                if (_lastSelectedIndex == -1 || _lastSelectedIndex >= _modifiedConfiguration.configs.Count)
                 {
                     return true;
                 }
@@ -85,9 +87,9 @@ namespace Shadowsocks.View
                 int localPort = int.Parse(ProxyPortTextBox.Text);
                 Configuration.CheckServer(server);
                 Configuration.CheckLocalPort(localPort);
-                _modifiedConfiguration.configs[_oldSelectedIndex] = server;
+                _modifiedConfiguration.configs[_lastSelectedIndex] = server;
                 _modifiedConfiguration.localPort = localPort;
-                
+
                 return true;
             }
             catch (FormatException)
@@ -113,12 +115,6 @@ namespace Shadowsocks.View
                 ProxyPortTextBox.Text = _modifiedConfiguration.localPort.ToString();
                 EncryptionSelect.Text = server.method ?? "aes-256-cfb";
                 RemarksTextBox.Text = server.remarks;
-                ServerGroupBox.Visible = true;
-                //IPTextBox.Focus();
-            }
-            else
-            {
-                ServerGroupBox.Visible = false;
             }
         }
 
@@ -135,12 +131,13 @@ namespace Shadowsocks.View
         {
             _modifiedConfiguration = controller.GetConfigurationCopy();
             LoadConfiguration(_modifiedConfiguration);
-            _oldSelectedIndex = _modifiedConfiguration.index;
-            if (_oldSelectedIndex < 0)
+            _lastSelectedIndex = _modifiedConfiguration.index;
+            if (_lastSelectedIndex < 0)
             {
-                _oldSelectedIndex = 0;
+                _lastSelectedIndex = 0;
             }
-            ServersListBox.SelectedIndex = _oldSelectedIndex;
+            ServersListBox.SelectedIndex = _lastSelectedIndex;
+            UpdateMoveUpAndDownButton();
             LoadSelectedServer();
         }
 
@@ -149,9 +146,35 @@ namespace Shadowsocks.View
 
         }
 
+        private void ConfigForm_KeyDown(object sender, KeyEventArgs e)
+        {
+            // Sometimes the users may hit enter key by mistake, and the form will close without saving entries.
+
+            if (e.KeyCode == Keys.Enter)
+            {
+                Server server = controller.GetCurrentServer();
+                if (!SaveOldSelectedServer())
+                {
+                    return;
+                }
+                if (_modifiedConfiguration.configs.Count == 0)
+                {
+                    MessageBox.Show(I18N.GetString("Please add at least one server"));
+                    return;
+                }
+                controller.SaveServers(_modifiedConfiguration.configs, _modifiedConfiguration.localPort);
+                controller.SelectServerIndex(_modifiedConfiguration.configs.IndexOf(server));
+            }
+
+        }
+
         private void ServersListBox_SelectedIndexChanged(object sender, EventArgs e)
         {
-            if (_oldSelectedIndex == ServersListBox.SelectedIndex)
+            if (!ServersListBox.CanSelect)
+            {
+                return;
+            }
+            if (_lastSelectedIndex == ServersListBox.SelectedIndex)
             {
                 // we are moving back to oldSelectedIndex or doing a force move
                 return;
@@ -159,11 +182,13 @@ namespace Shadowsocks.View
             if (!SaveOldSelectedServer())
             {
                 // why this won't cause stack overflow?
-                ServersListBox.SelectedIndex = _oldSelectedIndex;
+                ServersListBox.SelectedIndex = _lastSelectedIndex;
                 return;
             }
+            ServersListBox.Items[_lastSelectedIndex] = _modifiedConfiguration.configs[_lastSelectedIndex].FriendlyName();
+            UpdateMoveUpAndDownButton();
             LoadSelectedServer();
-            _oldSelectedIndex = ServersListBox.SelectedIndex;
+            _lastSelectedIndex = ServersListBox.SelectedIndex;
         }
 
         private void AddButton_Click(object sender, EventArgs e)
@@ -176,29 +201,30 @@ namespace Shadowsocks.View
             _modifiedConfiguration.configs.Add(server);
             LoadConfiguration(_modifiedConfiguration);
             ServersListBox.SelectedIndex = _modifiedConfiguration.configs.Count - 1;
-            _oldSelectedIndex = ServersListBox.SelectedIndex;
+            _lastSelectedIndex = ServersListBox.SelectedIndex;
         }
 
         private void DeleteButton_Click(object sender, EventArgs e)
         {
-            _oldSelectedIndex = ServersListBox.SelectedIndex;
-            if (_oldSelectedIndex >= 0 && _oldSelectedIndex < _modifiedConfiguration.configs.Count)
+            _lastSelectedIndex = ServersListBox.SelectedIndex;
+            if (_lastSelectedIndex >= 0 && _lastSelectedIndex < _modifiedConfiguration.configs.Count)
             {
-                _modifiedConfiguration.configs.RemoveAt(_oldSelectedIndex);
+                _modifiedConfiguration.configs.RemoveAt(_lastSelectedIndex);
             }
-            if (_oldSelectedIndex >= _modifiedConfiguration.configs.Count)
+            if (_lastSelectedIndex >= _modifiedConfiguration.configs.Count)
             {
                 // can be -1
-                _oldSelectedIndex = _modifiedConfiguration.configs.Count - 1;
+                _lastSelectedIndex = _modifiedConfiguration.configs.Count - 1;
             }
-            ServersListBox.SelectedIndex = _oldSelectedIndex;
+            ServersListBox.SelectedIndex = _lastSelectedIndex;
             LoadConfiguration(_modifiedConfiguration);
-            ServersListBox.SelectedIndex = _oldSelectedIndex;
+            ServersListBox.SelectedIndex = _lastSelectedIndex;
             LoadSelectedServer();
         }
 
         private void OKButton_Click(object sender, EventArgs e)
         {
+            Server server = controller.GetCurrentServer();
             if (!SaveOldSelectedServer())
             {
                 return;
@@ -209,6 +235,7 @@ namespace Shadowsocks.View
                 return;
             }
             controller.SaveServers(_modifiedConfiguration.configs, _modifiedConfiguration.localPort);
+            controller.SelectServerIndex(_modifiedConfiguration.configs.IndexOf(server));
             this.Close();
         }
 
@@ -227,5 +254,70 @@ namespace Shadowsocks.View
             controller.ConfigChanged -= controller_ConfigChanged;
         }
 
+        private void MoveConfigItem(int step)
+        {
+            int index = ServersListBox.SelectedIndex;
+            Server server = _modifiedConfiguration.configs[index];
+            object item = ServersListBox.SelectedItem;
+
+            _modifiedConfiguration.configs.Remove(server);
+            _modifiedConfiguration.configs.Insert(index + step, server);
+            _modifiedConfiguration.index += step;
+
+            ServersListBox.BeginUpdate();
+            ServersListBox.Enabled = false;
+            _lastSelectedIndex = index + step;
+            ServersListBox.Items.Remove(item);
+            ServersListBox.Items.Insert(index + step, item);
+            ServersListBox.Enabled = true;
+            ServersListBox.SelectedIndex = index + step;
+            ServersListBox.EndUpdate();
+
+            UpdateMoveUpAndDownButton();
+        }
+
+        private void UpdateMoveUpAndDownButton()
+        {
+            if (ServersListBox.SelectedIndex == 0)
+            {
+                MoveUpButton.Enabled = false;
+            }
+            else
+            {
+                MoveUpButton.Enabled = true;
+            }
+            if (ServersListBox.SelectedIndex == ServersListBox.Items.Count - 1)
+            {
+                MoveDownButton.Enabled = false;
+            }
+            else
+            {
+                MoveDownButton.Enabled = true;
+            }
+        }
+
+        private void MoveUpButton_Click(object sender, EventArgs e)
+        {
+            if (!SaveOldSelectedServer())
+            {
+                return;
+            }
+            if (ServersListBox.SelectedIndex > 0)
+            {
+                MoveConfigItem(-1);  // -1 means move backward
+            }
+        }
+
+        private void MoveDownButton_Click(object sender, EventArgs e)
+        {
+            if (!SaveOldSelectedServer())
+            {
+                return;
+            }
+            if (ServersListBox.SelectedIndex < ServersListBox.Items.Count - 1)
+            {
+                MoveConfigItem(+1);  // +1 means move forward
+            }
+        }
     }
 }

shadowsocks-csharp/View/ConfigForm.resx

@@ -112,9 +112,9 @@
     <value>2.0</value>
   </resheader>
   <resheader name="reader">
-    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
   <resheader name="writer">
-    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
   </resheader>
 </root>

shadowsocks-csharp/View/LogForm.Designer.cs

@@ -29,29 +29,37 @@
         private void InitializeComponent()
         {
             this.components = new System.ComponentModel.Container();
-            this.textBox1 = new System.Windows.Forms.TextBox();
+            this.LogMessageTextBox = new System.Windows.Forms.TextBox();
             this.contextMenuStrip1 = new System.Windows.Forms.ContextMenuStrip(this.components);
             this.mainMenu1 = new System.Windows.Forms.MainMenu(this.components);
-            this.menuItem1 = new System.Windows.Forms.MenuItem();
-            this.menuItem2 = new System.Windows.Forms.MenuItem();
-            this.menuItem4 = new System.Windows.Forms.MenuItem();
+            this.FileMenuItem = new System.Windows.Forms.MenuItem();
+            this.OpenLocationMenuItem = new System.Windows.Forms.MenuItem();
+            this.ExitMenuItem = new System.Windows.Forms.MenuItem();
+            this.panel1 = new System.Windows.Forms.Panel();
+            this.ChangeFontButton = new System.Windows.Forms.Button();
+            this.CleanLogsButton = new System.Windows.Forms.Button();
+            this.WrapTextCheckBox = new System.Windows.Forms.CheckBox();
+            this.tableLayoutPanel1 = new System.Windows.Forms.TableLayoutPanel();
+            this.TopMostCheckBox = new System.Windows.Forms.CheckBox();
+            this.panel1.SuspendLayout();
+            this.tableLayoutPanel1.SuspendLayout();
             this.SuspendLayout();
             // 
-            // textBox1
+            // LogMessageTextBox
             // 
-            this.textBox1.BackColor = System.Drawing.Color.Black;
-            this.textBox1.Dock = System.Windows.Forms.DockStyle.Fill;
-            this.textBox1.Font = new System.Drawing.Font("Consolas", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
-            this.textBox1.ForeColor = System.Drawing.Color.White;
-            this.textBox1.Location = new System.Drawing.Point(0, 0);
-            this.textBox1.MaxLength = 2147483647;
-            this.textBox1.Multiline = true;
-            this.textBox1.Name = "textBox1";
-            this.textBox1.ReadOnly = true;
-            this.textBox1.ScrollBars = System.Windows.Forms.ScrollBars.Both;
-            this.textBox1.Size = new System.Drawing.Size(547, 382);
-            this.textBox1.TabIndex = 0;
-            this.textBox1.WordWrap = false;
+            this.LogMessageTextBox.BackColor = System.Drawing.Color.Black;
+            this.LogMessageTextBox.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.LogMessageTextBox.Font = new System.Drawing.Font("Consolas", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
+            this.LogMessageTextBox.ForeColor = System.Drawing.Color.White;
+            this.LogMessageTextBox.Location = new System.Drawing.Point(3, 43);
+            this.LogMessageTextBox.MaxLength = 2147483647;
+            this.LogMessageTextBox.Multiline = true;
+            this.LogMessageTextBox.Name = "LogMessageTextBox";
+            this.LogMessageTextBox.ReadOnly = true;
+            this.LogMessageTextBox.ScrollBars = System.Windows.Forms.ScrollBars.Both;
+            this.LogMessageTextBox.Size = new System.Drawing.Size(541, 307);
+            this.LogMessageTextBox.TabIndex = 0;
+            this.LogMessageTextBox.WordWrap = false;
             // 
             // contextMenuStrip1
             // 
@@ -61,34 +69,103 @@
             // mainMenu1
             // 
             this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
-            this.menuItem1});
+            this.FileMenuItem});
             // 
-            // menuItem1
+            // FileMenuItem
             // 
-            this.menuItem1.Index = 0;
-            this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
-            this.menuItem2,
-            this.menuItem4});
-            this.menuItem1.Text = "&File";
+            this.FileMenuItem.Index = 0;
+            this.FileMenuItem.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
+            this.OpenLocationMenuItem,
+            this.ExitMenuItem});
+            this.FileMenuItem.Text = "&File";
             // 
-            // menuItem2
+            // OpenLocationMenuItem
             // 
-            this.menuItem2.Index = 0;
-            this.menuItem2.Text = "&Open Location";
-            this.menuItem2.Click += new System.EventHandler(this.menuItem2_Click);
+            this.OpenLocationMenuItem.Index = 0;
+            this.OpenLocationMenuItem.Text = "&Open Location";
+            this.OpenLocationMenuItem.Click += new System.EventHandler(this.OpenLocationMenuItem_Click);
             // 
-            // menuItem4
+            // ExitMenuItem
             // 
-            this.menuItem4.Index = 1;
-            this.menuItem4.Text = "E&xit";
-            this.menuItem4.Click += new System.EventHandler(this.menuItem4_Click);
+            this.ExitMenuItem.Index = 1;
+            this.ExitMenuItem.Text = "E&xit";
+            this.ExitMenuItem.Click += new System.EventHandler(this.ExitMenuItem_Click);
+            // 
+            // panel1
+            // 
+            this.panel1.Controls.Add(this.TopMostCheckBox);
+            this.panel1.Controls.Add(this.ChangeFontButton);
+            this.panel1.Controls.Add(this.CleanLogsButton);
+            this.panel1.Controls.Add(this.WrapTextCheckBox);
+            this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.panel1.Location = new System.Drawing.Point(3, 3);
+            this.panel1.Name = "panel1";
+            this.panel1.Size = new System.Drawing.Size(541, 34);
+            this.panel1.TabIndex = 1;
+            // 
+            // ChangeFontButton
+            // 
+            this.ChangeFontButton.Location = new System.Drawing.Point(107, 4);
+            this.ChangeFontButton.Name = "ChangeFontButton";
+            this.ChangeFontButton.Size = new System.Drawing.Size(75, 23);
+            this.ChangeFontButton.TabIndex = 2;
+            this.ChangeFontButton.Text = "&Font";
+            this.ChangeFontButton.UseVisualStyleBackColor = true;
+            this.ChangeFontButton.Click += new System.EventHandler(this.ChangeFontButton_Click);
+            // 
+            // CleanLogsButton
+            // 
+            this.CleanLogsButton.Location = new System.Drawing.Point(9, 4);
+            this.CleanLogsButton.Name = "CleanLogsButton";
+            this.CleanLogsButton.Size = new System.Drawing.Size(75, 23);
+            this.CleanLogsButton.TabIndex = 1;
+            this.CleanLogsButton.Text = "&Clean logs";
+            this.CleanLogsButton.UseVisualStyleBackColor = true;
+            this.CleanLogsButton.Click += new System.EventHandler(this.CleanLogsButton_Click);
+            // 
+            // WrapTextCheckBox
+            // 
+            this.WrapTextCheckBox.AutoSize = true;
+            this.WrapTextCheckBox.Location = new System.Drawing.Point(209, 9);
+            this.WrapTextCheckBox.Name = "WrapTextCheckBox";
+            this.WrapTextCheckBox.Size = new System.Drawing.Size(78, 16);
+            this.WrapTextCheckBox.TabIndex = 0;
+            this.WrapTextCheckBox.Text = "&Wrap text";
+            this.WrapTextCheckBox.UseVisualStyleBackColor = true;
+            this.WrapTextCheckBox.CheckedChanged += new System.EventHandler(this.WrapTextCheckBox_CheckedChanged);
+            // 
+            // tableLayoutPanel1
+            // 
+            this.tableLayoutPanel1.ColumnCount = 1;
+            this.tableLayoutPanel1.ColumnStyles.Add(new System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 100F));
+            this.tableLayoutPanel1.Controls.Add(this.panel1, 0, 0);
+            this.tableLayoutPanel1.Controls.Add(this.LogMessageTextBox, 0, 1);
+            this.tableLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Fill;
+            this.tableLayoutPanel1.Location = new System.Drawing.Point(0, 0);
+            this.tableLayoutPanel1.Name = "tableLayoutPanel1";
+            this.tableLayoutPanel1.RowCount = 2;
+            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Absolute, 40F));
+            this.tableLayoutPanel1.RowStyles.Add(new System.Windows.Forms.RowStyle());
+            this.tableLayoutPanel1.Size = new System.Drawing.Size(547, 353);
+            this.tableLayoutPanel1.TabIndex = 2;
+            // 
+            // TopMostCheckBox
+            // 
+            this.TopMostCheckBox.AutoSize = true;
+            this.TopMostCheckBox.Location = new System.Drawing.Point(311, 9);
+            this.TopMostCheckBox.Name = "TopMostCheckBox";
+            this.TopMostCheckBox.Size = new System.Drawing.Size(72, 16);
+            this.TopMostCheckBox.TabIndex = 3;
+            this.TopMostCheckBox.Text = "&Top most";
+            this.TopMostCheckBox.UseVisualStyleBackColor = true;
+            this.TopMostCheckBox.CheckedChanged += new System.EventHandler(this.TopMostCheckBox_CheckedChanged);
             // 
             // LogForm
             // 
-            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(547, 382);
-            this.Controls.Add(this.textBox1);
+            this.ClientSize = new System.Drawing.Size(547, 353);
+            this.Controls.Add(this.tableLayoutPanel1);
             this.Menu = this.mainMenu1;
             this.Name = "LogForm";
             this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
@@ -96,18 +173,27 @@
             this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.LogForm_FormClosing);
             this.Load += new System.EventHandler(this.LogForm_Load);
             this.Shown += new System.EventHandler(this.LogForm_Shown);
+            this.panel1.ResumeLayout(false);
+            this.panel1.PerformLayout();
+            this.tableLayoutPanel1.ResumeLayout(false);
+            this.tableLayoutPanel1.PerformLayout();
             this.ResumeLayout(false);
-            this.PerformLayout();
 
         }
 
         #endregion
 
-        private System.Windows.Forms.TextBox textBox1;
+        private System.Windows.Forms.TextBox LogMessageTextBox;
         private System.Windows.Forms.ContextMenuStrip contextMenuStrip1;
         private System.Windows.Forms.MainMenu mainMenu1;
-        private System.Windows.Forms.MenuItem menuItem1;
-        private System.Windows.Forms.MenuItem menuItem2;
-        private System.Windows.Forms.MenuItem menuItem4;
+        private System.Windows.Forms.MenuItem FileMenuItem;
+        private System.Windows.Forms.MenuItem OpenLocationMenuItem;
+        private System.Windows.Forms.MenuItem ExitMenuItem;
+        private System.Windows.Forms.Panel panel1;
+        private System.Windows.Forms.CheckBox WrapTextCheckBox;
+        private System.Windows.Forms.Button CleanLogsButton;
+        private System.Windows.Forms.Button ChangeFontButton;
+        private System.Windows.Forms.TableLayoutPanel tableLayoutPanel1;
+        private System.Windows.Forms.CheckBox TopMostCheckBox;
     }
 }

shadowsocks-csharp/View/LogForm.cs

@@ -1,4 +1,5 @@
-using Shadowsocks.Properties;
+using Shadowsocks.Controller;
+using Shadowsocks.Properties;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
@@ -23,6 +24,20 @@ namespace Shadowsocks.View
             this.filename = filename;
             InitializeComponent();
             this.Icon = Icon.FromHandle(Resources.ssw128.GetHicon());
+
+            UpdateTexts();
+        }
+
+        private void UpdateTexts()
+        {
+            FileMenuItem.Text = I18N.GetString("&File");
+            OpenLocationMenuItem.Text = I18N.GetString("&Open Location");
+            ExitMenuItem.Text = I18N.GetString("E&xit");
+            CleanLogsButton.Text = I18N.GetString("&Clean logs");
+            ChangeFontButton.Text = I18N.GetString("&Font");
+            WrapTextCheckBox.Text = I18N.GetString("&Wrap text");
+            TopMostCheckBox.Text = I18N.GetString("&Top most");
+            this.Text = I18N.GetString("Log Viewer");
         }
 
         private void Timer_Tick(object sender, EventArgs e)
@@ -43,9 +58,9 @@ namespace Shadowsocks.View
 
                 string line = "";
                 while ((line = reader.ReadLine()) != null)
-                    textBox1.AppendText(line + "\r\n");
+                    LogMessageTextBox.AppendText(line + "\r\n");
 
-                textBox1.ScrollToCaret();
+                LogMessageTextBox.ScrollToCaret();
 
                 lastOffset = reader.BaseStream.Position;
             }
@@ -63,12 +78,12 @@ namespace Shadowsocks.View
                 while ((line = reader.ReadLine()) != null)
                 {
                     changed = true;
-                    textBox1.AppendText(line + "\r\n");
+                    LogMessageTextBox.AppendText(line + "\r\n");
                 }
 
                 if (changed)
                 {
-                    textBox1.ScrollToCaret();
+                    LogMessageTextBox.ScrollToCaret();
                 }
 
                 lastOffset = reader.BaseStream.Position;
@@ -89,25 +104,47 @@ namespace Shadowsocks.View
             timer.Stop();
         }
 
-        private void menuItem2_Click(object sender, EventArgs e)
+        private void OpenLocationMenuItem_Click(object sender, EventArgs e)
         {
-            string argument = @"/select, " + filename;
+            string argument = "/select, \"" + filename + "\"";
+            Console.WriteLine(argument);
             System.Diagnostics.Process.Start("explorer.exe", argument);
         }
 
-        private void menuItem3_Click(object sender, EventArgs e)
-        {
-
-        }
-
-        private void menuItem4_Click(object sender, EventArgs e)
+        private void ExitMenuItem_Click(object sender, EventArgs e)
         {
             this.Close();
         }
 
         private void LogForm_Shown(object sender, EventArgs e)
         {
-            textBox1.ScrollToCaret();
+            LogMessageTextBox.ScrollToCaret();
+        }
+
+        private void WrapTextCheckBox_CheckedChanged(object sender, EventArgs e)
+        {
+            LogMessageTextBox.WordWrap = WrapTextCheckBox.Checked;
+            LogMessageTextBox.ScrollToCaret();
+        }
+
+        private void CleanLogsButton_Click(object sender, EventArgs e)
+        {
+            LogMessageTextBox.Clear();
+        }
+
+        private void ChangeFontButton_Click(object sender, EventArgs e)
+        {
+            FontDialog fd = new FontDialog();
+            fd.Font = LogMessageTextBox.Font;
+            if (fd.ShowDialog() == DialogResult.OK)
+            {
+                LogMessageTextBox.Font = fd.Font;
+            }
+        }
+
+        private void TopMostCheckBox_CheckedChanged(object sender, EventArgs e)
+        {
+            this.TopMost = TopMostCheckBox.Checked;
         }
     }
 }

shadowsocks-csharp/View/MenuViewController.cs

@@ -18,7 +18,7 @@ namespace Shadowsocks.View
         // yes this is just a menu view controller
         // when config form is closed, it moves away from RAM
         // and it should just do anything related to the config form
-        
+
         private ShadowsocksController controller;
         private UpdateChecker updateChecker;
 
@@ -322,7 +322,7 @@ namespace Shadowsocks.View
         void configForm_FormClosed(object sender, FormClosedEventArgs e)
         {
             configForm = null;
-            Util.Utils.ReleaseMemory();
+            Util.Utils.ReleaseMemory(true);
             ShowFirstTimeBalloon();
         }
 
@@ -520,17 +520,17 @@ namespace Shadowsocks.View
             Process.Start(_urlToOpen);
         }
 
-		private void AutoStartupItem_Click(object sender, EventArgs e) {
-			AutoStartupItem.Checked = !AutoStartupItem.Checked;
-			if (!AutoStartup.Set(AutoStartupItem.Checked)) {
-				MessageBox.Show(I18N.GetString("Failed to update registry"));
-			}
-		}
+        private void AutoStartupItem_Click(object sender, EventArgs e) {
+            AutoStartupItem.Checked = !AutoStartupItem.Checked;
+            if (!AutoStartup.Set(AutoStartupItem.Checked)) {
+                MessageBox.Show(I18N.GetString("Failed to update registry"));
+            }
+        }
 
-		private void AvailabilityStatisticsItem_Click(object sender, EventArgs e) {
-			AvailabilityStatistics.Checked = !AvailabilityStatistics.Checked;
+        private void AvailabilityStatisticsItem_Click(object sender, EventArgs e) {
+            AvailabilityStatistics.Checked = !AvailabilityStatistics.Checked;
             controller.ToggleAvailabilityStatistics(AvailabilityStatistics.Checked);
-		}
+        }
 
         private void LocalPACItem_Click(object sender, EventArgs e)
         {

shadowsocks-csharp/View/QRCodeSplashForm.cs

@@ -242,7 +242,6 @@ namespace Shadowsocks.View
             SetBitmap(bitmap, 255);
         }
 
-
         /// <para>Changes the current bitmap with a custom opacity level.  Here is where all happens!</para>
         public void SetBitmap(Bitmap bitmap, byte opacity)
         {
@@ -288,7 +287,6 @@ namespace Shadowsocks.View
             }
         }
 
-
         protected override CreateParams CreateParams
         {
             get