From 3b5c09907d95e031adc09d07460a7352a3f2b6d1 Mon Sep 17 00:00:00 2001
From: clowwindy <clowwindy42@gmail.com>
Date: Sun, 23 Nov 2014 01:08:09 +0800
Subject: [PATCH] only switch the system proxy off if we have switched it on

---
 shadowsocks-csharp/Controller/ShadowsocksController.cs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/shadowsocks-csharp/Controller/ShadowsocksController.cs b/shadowsocks-csharp/Controller/ShadowsocksController.cs
index b4de4cf9..f5bdb44c 100755
--- a/shadowsocks-csharp/Controller/ShadowsocksController.cs
+++ b/shadowsocks-csharp/Controller/ShadowsocksController.cs
@@ -22,6 +22,8 @@ namespace Shadowsocks.Controller
         private PolipoRunner polipoRunner;
         private bool stopped = false;
 
+        private bool _systemProxyIsDirty = false;
+
         public class PathEventArgs : EventArgs
         {
             public string Path;
@@ -174,10 +176,16 @@ namespace Shadowsocks.Controller
             if (_config.enabled)
             {
                 SystemProxy.Enable();
+                _systemProxyIsDirty = true;
             }
             else
             {
-                SystemProxy.Disable();
+                // only switch it off if we have switched it on
+                if (_systemProxyIsDirty)
+                {
+                    SystemProxy.Disable();
+                    _systemProxyIsDirty = false;
+                }
             }
         }