Added tls fragment support (Xray-core)

https://github.com/2dust/v2rayN/issues/4900

v2rayN/v2rayN/Handler/CoreConfigV2ray.cs

@@ -834,6 +834,33 @@ namespace v2rayN.Handler
 
         private int GenMoreOutbounds(ProfileItem node, V2rayConfig v2rayConfig)
         {
+            //fragment proxy
+            if (_config.coreBasicItem.enableFragment
+                && !Utils.IsNullOrEmpty(v2rayConfig.outbounds[0].streamSettings?.security))
+            {
+                var fragmentOutbound = new Outbounds4Ray
+                {
+                    protocol = "freedom",
+                    tag = $"{Global.ProxyTag}3",
+                    settings = new()
+                    {
+                        fragment = new()
+                        {
+                            packets = "tlshello",
+                            length = "100-200",
+                            interval = "10-20"
+                        }
+                    }
+                };
+
+                v2rayConfig.outbounds.Add(fragmentOutbound);
+                v2rayConfig.outbounds[0].streamSettings.sockopt = new()
+                {
+                    dialerProxy = fragmentOutbound.tag
+                };
+                return 0;
+            }
+
             if (node.subid.IsNullOrEmpty())
             {
                 return 0;

v2rayN/v2rayN/Models/ConfigItems.cs

@@ -31,6 +31,8 @@ namespace v2rayN.Models
         /// 默认用户代理
         /// </summary>
         public string defUserAgent { get; set; }
+
+        public bool enableFragment { get; set; }
     }
 
     [Serializable]

v2rayN/v2rayN/Models/V2rayConfig.cs

@@ -253,6 +253,8 @@ namespace v2rayN.Models
         ///
         /// </summary>
         public int? userLevel { get; set; }
+
+        public FragmentItem4Ray? fragment { get; set; }
     }
 
     public class VnextItem4Ray
@@ -665,4 +667,11 @@ namespace v2rayN.Models
     {
         public string? dialerProxy { get; set; }
     }
+
+    public class FragmentItem4Ray
+    {
+        public string? packets { get; set; }
+        public string? length { get; set; }
+        public string? interval { get; set; }
+    }
 }

v2rayN/v2rayN/Resx/ResUI.Designer.cs

@@ -2635,6 +2635,24 @@ namespace v2rayN.Resx {
             }
         }
         
+        /// <summary>
+        ///   查找类似 Enable fragment 的本地化字符串。
+        /// </summary>
+        public static string TbSettingsEnableFragment {
+            get {
+                return ResourceManager.GetString("TbSettingsEnableFragment", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   查找类似 Use Xray and enable non-Tun mode, which conflicts with the group previous proxy 的本地化字符串。
+        /// </summary>
+        public static string TbSettingsEnableFragmentTips {
+            get {
+                return ResourceManager.GetString("TbSettingsEnableFragmentTips", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 Enable hardware acceleration(Require restart) 的本地化字符串。
         /// </summary>

v2rayN/v2rayN/Resx/ResUI.resx

@@ -1201,4 +1201,10 @@
   <data name="menuAddHttpServer" xml:space="preserve">
     <value>Add [Http] server</value>
   </data>
+  <data name="TbSettingsEnableFragmentTips" xml:space="preserve">
+    <value>Use Xray and enable non-Tun mode, which conflicts with the group previous proxy</value>
+  </data>
+  <data name="TbSettingsEnableFragment" xml:space="preserve">
+    <value>Enable fragment</value>
+  </data>
 </root>

v2rayN/v2rayN/Resx/ResUI.zh-Hans.resx

@@ -1198,4 +1198,10 @@
   <data name="menuAddHttpServer" xml:space="preserve">
     <value>添加[Http]服务器</value>
   </data>
+  <data name="TbSettingsEnableFragment" xml:space="preserve">
+    <value>启用分片（Fragment）</value>
+  </data>
+  <data name="TbSettingsEnableFragmentTips" xml:space="preserve">
+    <value>使用Xray且非Tun模式启用，和分组前置代理冲突</value>
+  </data>
 </root>

v2rayN/v2rayN/Resx/ResUI.zh-Hant.resx

@@ -1171,4 +1171,10 @@
   <data name="menuAddHttpServer" xml:space="preserve">
     <value>新增[Http]伺服器</value>
   </data>
+  <data name="TbSettingsEnableFragment" xml:space="preserve">
+    <value>啟用分片（Fragment）</value>
+  </data>
+  <data name="TbSettingsEnableFragmentTips" xml:space="preserve">
+    <value>使用Xray且非Tun模式啟用，和分組前置代理衝突</value>
+  </data>
 </root>

v2rayN/v2rayN/ViewModels/OptionSettingViewModel.cs

@@ -34,6 +34,7 @@ namespace v2rayN.ViewModels
         [Reactive] public string mux4SboxProtocol { get; set; }
         [Reactive] public int hyUpMbps { get; set; }
         [Reactive] public int hyDownMbps { get; set; }
+        [Reactive] public bool enableFragment { get; set; }
 
         #endregion Core
 
@@ -129,6 +130,7 @@ namespace v2rayN.ViewModels
             mux4SboxProtocol = _config.mux4SboxItem.protocol;
             hyUpMbps = _config.hysteriaItem.up_mbps;
             hyDownMbps = _config.hysteriaItem.down_mbps;
+            enableFragment = _config.coreBasicItem.enableFragment;
 
             #endregion Core
 
@@ -289,6 +291,7 @@ namespace v2rayN.ViewModels
             _config.mux4SboxItem.protocol = mux4SboxProtocol;
             _config.hysteriaItem.up_mbps = hyUpMbps;
             _config.hysteriaItem.down_mbps = hyDownMbps;
+            _config.coreBasicItem.enableFragment = enableFragment;
 
             //Kcp
             //_config.kcpItem.mtu = Kcpmtu;

v2rayN/v2rayN/Views/OptionSettingWindow.xaml

@@ -67,6 +67,7 @@
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="Auto" />
                             <RowDefinition Height="Auto" />
+                            <RowDefinition Height="Auto" />
                         </Grid.RowDefinitions>
                         <Grid.ColumnDefinitions>
                             <ColumnDefinition Width="Auto" />
@@ -333,6 +334,26 @@
                                 materialDesign:HintAssist.Hint="Down"
                                 Style="{StaticResource DefTextBox}" />
                         </StackPanel>
+
+                        <TextBlock
+                            Grid.Row="16"
+                            Grid.Column="0"
+                            Margin="{StaticResource SettingItemMargin}"
+                            VerticalAlignment="Center"
+                            Style="{StaticResource ToolbarTextBlock}"
+                            Text="{x:Static resx:ResUI.TbSettingsEnableFragment}" />
+                        <ToggleButton
+                            x:Name="togenableFragment"
+                            Grid.Row="16"
+                            Grid.Column="1"
+                            Margin="{StaticResource SettingItemMargin}"
+                            HorizontalAlignment="Left" />
+                        <TextBlock
+                            Grid.Row="16"
+                            Grid.Column="3"
+                            Margin="{StaticResource SettingItemMargin}"
+                            Style="{StaticResource ToolbarTextBlock}"
+                            Text="{x:Static resx:ResUI.TbSettingsEnableFragmentTips}" />
                     </Grid>
                 </ScrollViewer>
             </TabItem>

v2rayN/v2rayN/Views/OptionSettingWindow.xaml.cs

@@ -156,6 +156,7 @@ namespace v2rayN.Views
                 this.Bind(ViewModel, vm => vm.mux4SboxProtocol, v => v.cmbmux4SboxProtocol.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.hyUpMbps, v => v.txtUpMbps.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.hyDownMbps, v => v.txtDownMbps.Text).DisposeWith(disposables);
+                this.Bind(ViewModel, vm => vm.enableFragment, v => v.togenableFragment.IsChecked).DisposeWith(disposables);
 
                 //this.Bind(ViewModel, vm => vm.Kcpmtu, v => v.txtKcpmtu.Text).DisposeWith(disposables);
                 //this.Bind(ViewModel, vm => vm.Kcptti, v => v.txtKcptti.Text).DisposeWith(disposables);