Add menu item to copy local pac url

shadowsocks-csharp/Controller/Service/PACServer.cs

@@ -18,7 +18,9 @@ namespace Shadowsocks.Controller
         public const string USER_RULE_FILE = "user-rule.txt";
         public const string USER_ABP_FILE = "abp.txt";
 
-        public string PacSecret { get; private set; } = "";
+        private string PacSecret { get; set; } = "";
+
+        public string PacUrl { get; private set; } = "";
 
         FileSystemWatcher PACFileWatcher;
         FileSystemWatcher UserRuleFileWatcher;
@@ -47,6 +49,14 @@ namespace Shadowsocks.Controller
             {
                 PacSecret = "";
             }
+
+            PacUrl = $"http://127.0.0.1:{config.localPort}/pac?t={GetTimestamp(DateTime.Now)}{PacSecret}";
+        }
+
+
+        private static string GetTimestamp(DateTime value)
+        {
+            return value.ToString("yyyyMMddHHmmssfff");
         }
 
         public override bool Handle(byte[] firstPacket, int length, Socket socket, object state)

shadowsocks-csharp/Controller/ShadowsocksController.cs

@@ -6,6 +6,7 @@ using System.Net.Sockets;
 using System.Text;
 using System.Threading;
 using System.Web;
+using System.Windows.Forms;
 using Newtonsoft.Json;
 using Shadowsocks.Controller.Service;
 using Shadowsocks.Controller.Strategy;
@@ -575,6 +576,11 @@ namespace Shadowsocks.Controller
             File.WriteAllText(PACServer.PAC_FILE, abpContent, Encoding.UTF8);
         }
 
+        public void CopyPacUrl()
+        {
+            Clipboard.SetDataObject(_pacServer.PacUrl);
+        }
+
         #region Memory Management
 
         private void StartReleasingMemory()

shadowsocks-csharp/Controller/System/SystemProxy.cs

@@ -38,8 +38,7 @@ namespace Shadowsocks.Controller
                         }
                         else
                         {
-                            pacUrl =
-                                $"http://127.0.0.1:{config.localPort}/pac?t={GetTimestamp(DateTime.Now)}{pacSrv.PacSecret}";
+                            pacUrl = pacSrv.PacUrl;
                         }
                         Sysproxy.SetIEProxy(true, false, "", pacUrl);
                     }