From b24689ba25a5198449f3cdfa6782cc2f84d4ce39 Mon Sep 17 00:00:00 2001
From: Connection Refused <ConnectionRefusedX@ProtonMail.COM>
Date: Wed, 29 Jan 2020 19:48:02 +0800
Subject: [PATCH] Change system proxy settings with C++ Windows API

---
 Netch/Controllers/HTTPController.cs |  8 ++++++++
 Netch/NativeMethods.cs              | 30 ++++++++++++++++++++++++++---
 2 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/Netch/Controllers/HTTPController.cs b/Netch/Controllers/HTTPController.cs
index 852f6355..87f8b4eb 100644
--- a/Netch/Controllers/HTTPController.cs
+++ b/Netch/Controllers/HTTPController.cs
@@ -36,7 +36,10 @@ namespace Netch.Controllers
 
                 if (mode.Type != 5)
                 {
+                    NativeMethods.SetGlobal($"127.0.0.1:{Global.Settings.HTTPLocalPort}", "<local>");
+
                     // HTTP 系统代理模式，启动系统代理
+                    /*
                     using (var registry = Registry.CurrentUser.OpenSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings", true))
                     {
                         registry.SetValue("ProxyEnable", 1);
@@ -45,6 +48,7 @@ namespace Netch.Controllers
                         Win32Native.InternetSetOption(IntPtr.Zero, 39, IntPtr.Zero, 0);
                         Win32Native.InternetSetOption(IntPtr.Zero, 37, IntPtr.Zero, 0);
                     }
+                    */
                 }
             }
             catch (Exception e)
@@ -72,6 +76,9 @@ namespace Netch.Controllers
                     Utils.Logging.Info(e.ToString());
                 }
 
+                NativeMethods.SetDIRECT();
+
+                /*
                 using (var registry = Registry.CurrentUser.OpenSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings", true))
                 {
                     registry.SetValue("ProxyEnable", 0);
@@ -80,6 +87,7 @@ namespace Netch.Controllers
                     Win32Native.InternetSetOption(IntPtr.Zero, 39, IntPtr.Zero, 0);
                     Win32Native.InternetSetOption(IntPtr.Zero, 37, IntPtr.Zero, 0);
                 }
+                */
             }
             catch (Exception e)
             {
diff --git a/Netch/NativeMethods.cs b/Netch/NativeMethods.cs
index 3cbff8d1..0fbfd77d 100644
--- a/Netch/NativeMethods.cs
+++ b/Netch/NativeMethods.cs
@@ -13,7 +13,7 @@ namespace Netch
         /// <param name="index">适配器索引</param>
         /// <param name="metric">跃点数</param>
         /// <returns>是否成功</returns>
-        [DllImport("bin\\NetchCore.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint = "CreateRoute")]
+        [DllImport("bin\\NetchCore", CallingConvention = CallingConvention.Cdecl, EntryPoint = "CreateRoute")]
         public static extern bool CreateRoute(string address, int netmask, string gateway, int index, int metric = 0);
 
         /// <summary>
@@ -25,7 +25,7 @@ namespace Netch
         /// <param name="index">适配器索引</param>
         /// <param name="metric">跃点数</param>
         /// <returns>是否成功</returns>
-        [DllImport("bin\\NetchCore.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint = "ChangeRoute")]
+        [DllImport("bin\\NetchCore", CallingConvention = CallingConvention.Cdecl, EntryPoint = "ChangeRoute")]
         public static extern bool ChangeRoute(string address, int netmask, string gateway, int index, int metric = 0);
 
         /// <summary>
@@ -37,7 +37,31 @@ namespace Netch
         /// <param name="index">适配器索引</param>
         /// <param name="metric">跃点数</param>
         /// <returns>是否成功</returns>
-        [DllImport("bin\\NetchCore.dll", CallingConvention = CallingConvention.Cdecl, EntryPoint = "DeleteRoute")]
+        [DllImport("bin\\NetchCore", CallingConvention = CallingConvention.Cdecl, EntryPoint = "DeleteRoute")]
         public static extern bool DeleteRoute(string address, int netmask, string gateway, int index, int metric = 0);
+
+        /// <summary>
+        ///     设置直连
+        /// </summary>
+        /// <returns>是否成功</returns>
+        [DllImport("bin\\sysproxy", CallingConvention = CallingConvention.Cdecl)]
+        public static extern bool SetDIRECT();
+
+        /// <summary>
+        ///     设置全局
+        /// </summary>
+        /// <param name="remote">地址</param>
+        /// <param name="bypass">绕过</param>
+        /// <returns>是否成功</returns>
+        [DllImport("bin\\sysproxy", CallingConvention = CallingConvention.Cdecl)]
+        public static extern bool SetGlobal([MarshalAs(UnmanagedType.LPTStr)] string remote, [MarshalAs(UnmanagedType.LPTStr)] string bypass);
+
+        /// <summary>
+        ///     设置自动代理
+        /// </summary>
+        /// <param name="remote">URL</param>
+        /// <returns>是否成功</returns>
+        [DllImport("bin\\sysproxy", CallingConvention = CallingConvention.Cdecl)]
+        public static extern bool SetURL([MarshalAs(UnmanagedType.LPTStr)] string remote);
     }
 }