fix a path problem

Update UpdateChecker.cs

README.md

@@ -7,32 +7,30 @@ Shadowsocks for Windows
 
 1. System proxy configuration
 2. PAC mode and global mode
-3. GFWList and user rules
+3. [GFWList] and user rules
 4. Supports HTTP proxy
 5. Supports server auto switching
 6. Supports UDP relay (see Usage)
 
 #### Download
 
-Download a [latest release].
-
-Notice: .Net 2.0 doesn't work well on Windows 10. We no longer support .Net 2.0. Both Shadowsocks-win-xxx.zip and Shadowsocks-win-dotnet4.0-xxx.zip are exactly the same file now. If you use Windows XP or 7, please install .Net 4.0 or higher.
+Download the [latest release].
 
 #### Basic
 
 1. Find Shadowsocks icon in the notification tray
 2. You can add multiple servers in servers menu
-3. Select Enable System Proxy menu to enable system proxy. Please disable other
+3. Select `Enable System Proxy` menu to enable system proxy. Please disable other
 proxy addons in your browser, or set them to use system proxy
 4. You can also configure your browser proxy manually if you don't want to enable
 system proxy. Set Socks5 or HTTP proxy to 127.0.0.1:1080. You can change this
-port in Server -> Edit Servers
+port in `Servers -> Edit Servers`
 
 #### PAC
 
 1. You can change PAC rules by editing the PAC file. When you save the PAC file
 with any editor, Shadowsocks will notify browsers about the change automatically
-2. You can also update PAC file from GFWList (maintained by 3rd party)
+2. You can also update PAC file from [GFWList] (maintained by 3rd party)
 3. You can also use online PAC URL
 
 #### Server Auto Switching
@@ -46,7 +44,7 @@ with any editor, Shadowsocks will notify browsers about the change automatically
 #### UDP
 
 For UDP, you need to use SocksCap or ProxyCap to force programs you want
-to proxy to tunnel over Shadowsocks
+to be proxied to tunnel over Shadowsocks
 
 #### Develop
 
@@ -60,3 +58,4 @@ GPLv3
 [Appveyor]:       https://ci.appveyor.com/project/clowwindy/shadowsocks-csharp
 [Build Status]:   https://ci.appveyor.com/api/projects/status/gknc8l1lxy423ehv/branch/master
 [latest release]: https://github.com/shadowsocks/shadowsocks-csharp/releases
+[GFWList]:        https://github.com/gfwlist/gfwlist

shadowsocks-csharp/Controller/Service/AvailabilityStatistics.cs

@@ -67,14 +67,21 @@ namespace Shadowsocks.Controller
                     string timestamp = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");
                     //ICMP echo. we can also set options and special bytes
                     //seems no need to use SendPingAsync
-                    PingReply reply = ping.Send(server.server, Timeout);
-                    state.data = new List<KeyValuePair<string, string>>();
-                    state.data.Add(new KeyValuePair<string, string>("Timestamp", timestamp));
-                    state.data.Add(new KeyValuePair<string, string>("Server", server.FriendlyName()));
-                    state.data.Add(new KeyValuePair<string, string>("Status", reply.Status.ToString()));
-                    state.data.Add(new KeyValuePair<string, string>("RoundtripTime", reply.RoundtripTime.ToString()));
-                    //state.data.Add(new KeyValuePair<string, string>("data", reply.Buffer.ToString())); // The data of reply
-                    Append(state.data);
+                    try
+                    {
+                        PingReply reply = ping.Send(server.server, Timeout);
+                        state.data = new List<KeyValuePair<string, string>>();
+                        state.data.Add(new KeyValuePair<string, string>("Timestamp", timestamp));
+                        state.data.Add(new KeyValuePair<string, string>("Server", server.FriendlyName()));
+                        state.data.Add(new KeyValuePair<string, string>("Status", reply.Status.ToString()));
+                        state.data.Add(new KeyValuePair<string, string>("RoundtripTime", reply.RoundtripTime.ToString()));
+                        //state.data.Add(new KeyValuePair<string, string>("data", reply.Buffer.ToString())); // The data of reply
+                        Append(state.data);
+                    }
+                    catch (Exception e)
+                    {
+                        Logging.LogUsefulException(e);
+                    }
                 }
             }
         }

shadowsocks-csharp/Controller/Service/PolipoRunner.cs

@@ -65,10 +65,13 @@ namespace Shadowsocks.Controller
                 polipoConfig = polipoConfig.Replace("__POLIPO_BIND_IP__", configuration.shareOverLan ? "0.0.0.0" : "127.0.0.1");
                 FileManager.ByteArrayToFile(temppath + "/privoxy.conf", System.Text.Encoding.UTF8.GetBytes(polipoConfig));
 
+                if (!(temppath.EndsWith("\\") || temppath.EndsWith("/"))) {
+                    temppath = temppath + "\\";
+                }
                 _process = new Process();
                 // Configure the process using the StartInfo properties.
-                _process.StartInfo.FileName = temppath + "/ss_privoxy.exe";
-                _process.StartInfo.Arguments = " \"" + temppath + "/privoxy.conf\"";
+                _process.StartInfo.FileName = temppath + "ss_privoxy.exe";
+                _process.StartInfo.Arguments = " \"" + temppath + "privoxy.conf\"";
                 _process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
                 _process.StartInfo.UseShellExecute = true;
                 _process.StartInfo.CreateNoWindow = true;

shadowsocks-csharp/Controller/Service/UpdateChecker.cs

@@ -12,13 +12,13 @@ namespace Shadowsocks.Controller
 {
     public class UpdateChecker
     {
-        private const string UpdateURL = "https://api.github.com/repos/shadowsocks/shadowsocks-csharp/releases";
+        private const string UpdateURL = "https://api.github.com/repos/shadowsocks/shadowsocks-windows/releases";
 
         public string LatestVersionNumber;
         public string LatestVersionURL;
         public event EventHandler NewVersionFound;
 
-        public const string Version = "2.5.4";
+        public const string Version = "2.5.5";
 
         public void CheckUpdate(Configuration config)
         {

shadowsocks-csharp/Controller/System/SystemProxy.cs

@@ -56,18 +56,14 @@ namespace Shadowsocks.Controller
                             pacUrl = "http://127.0.0.1:" + config.localPort.ToString() + "/pac?t=" + GetTimestamp(DateTime.Now);
                         registry.SetValue("ProxyEnable", 0);
                         var readProxyServer = registry.GetValue("ProxyServer");
-                        if (readProxyServer != null && readProxyServer.Equals("127.0.0.1:" + config.localPort.ToString()))
-                            registry.SetValue("ProxyServer", "");
+                        registry.SetValue("ProxyServer", "");
                         registry.SetValue("AutoConfigURL", pacUrl);
                     }
                 }
                 else
                 {
                     registry.SetValue("ProxyEnable", 0);
-                    if (global)
-                    {
-                        registry.SetValue("ProxyServer", "");
-                    }
+                    registry.SetValue("ProxyServer", "");
                     registry.SetValue("AutoConfigURL", "");
                 }
                 //Set AutoDetectProxy Off

shadowsocks-csharp/Data/cn.txt

@@ -19,6 +19,7 @@ Update Local PAC from GFWList=从 GFWList 更新本地 PAC
 Edit User Rule for GFWList...=编辑 GFWList 的用户规则...
 Show QRCode...=显示二维码...
 Scan QRCode from Screen...=扫描屏幕上的二维码...
+Availability Statistics=统计可用性
 Show Logs...=显示日志...
 About...=关于...
 Quit=退出
@@ -72,6 +73,9 @@ Failed to update PAC file =更新 PAC 文件失败
 PAC updated=更新 PAC 成功
 No updates found. Please report to GFWList if you have problems with it.=未发现更新。如有问题请提交给 GFWList。
 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。
 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：

shadowsocks-csharp/Program.cs

@@ -19,7 +19,7 @@ namespace Shadowsocks
         static void Main()
         {
             Util.Utils.ReleaseMemory();
-            using (Mutex mutex = new Mutex(false, "Global\\" + "71981632-A427-497F-AB91-241CD227EC1F"))
+            using (Mutex mutex = new Mutex(false, "Global\\Shadowsocks_" + Application.StartupPath.GetHashCode()))
             {
                 Application.EnableVisualStyles();
                 Application.SetCompatibleTextRenderingDefault(false);
@@ -31,7 +31,9 @@ namespace Shadowsocks
                     {
                         Process oldProcess = oldProcesses[0];
                     }
-                    MessageBox.Show("Shadowsocks is already running.\n\nFind Shadowsocks icon in your notify tray.");
+                    MessageBox.Show(I18N.GetString("Find Shadowsocks icon in your notify tray.") + "\n" +
+                        I18N.GetString("If you want to start multiple Shadowsocks, make a copy in another directory."),
+                        I18N.GetString("Shadowsocks is already running."));
                     return;
                 }
                 Directory.SetCurrentDirectory(Application.StartupPath);