Add Connections Host Filter

https://github.com/2dust/v2rayN/issues/5683

v2rayN/ServiceLib/Common/StringEx.cs

@@ -14,6 +14,11 @@ namespace ServiceLib.Common
             return string.IsNullOrWhiteSpace(value);
         }
 
+        public static bool IsNotEmpty([NotNullWhen(false)] this string? value)
+        {
+            return !string.IsNullOrEmpty(value);
+        }
+
         public static bool BeginWithAny(this string s, IEnumerable<char> chars)
         {
             if (s.IsNullOrEmpty()) return false;

v2rayN/ServiceLib/Resx/ResUI.Designer.cs

@@ -105,6 +105,15 @@ namespace ServiceLib.Resx {
             }
         }
         
+        /// <summary>
+        ///   查找类似 Host filter 的本地化字符串。
+        /// </summary>
+        public static string ConnectionsHostFilterTitle {
+            get {
+                return ResourceManager.GetString("ConnectionsHostFilterTitle", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   查找类似 Note that custom configuration relies entirely on your own configuration and does not work with all settings. If you want to use the system proxy, please modify the listening port manually. 的本地化字符串。
         /// </summary>

v2rayN/ServiceLib/Resx/ResUI.resx

@@ -1318,4 +1318,7 @@
   <data name="LocalRestoreInvalidZipTips" xml:space="preserve">
     <value>Invalid backup file</value>
   </data>
+  <data name="ConnectionsHostFilterTitle" xml:space="preserve">
+    <value>Host filter</value>
+  </data>
 </root>

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

@@ -1315,4 +1315,7 @@
   <data name="LocalRestoreInvalidZipTips" xml:space="preserve">
     <value>无效备份文件</value>
   </data>
+  <data name="ConnectionsHostFilterTitle" xml:space="preserve">
+    <value>主机过滤器</value>
+  </data>
 </root>

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

@@ -1195,4 +1195,7 @@
   <data name="LocalRestoreInvalidZipTips" xml:space="preserve">
     <value>無效備份文件</value>
   </data>
+  <data name="ConnectionsHostFilterTitle" xml:space="preserve">
+    <value>主機過濾器</value>
+  </data>
 </root>

v2rayN/ServiceLib/ViewModels/ClashConnectionsViewModel.cs

@@ -19,6 +19,9 @@ namespace ServiceLib.ViewModels
         public ReactiveCommand<Unit, Unit> ConnectionCloseCmd { get; }
         public ReactiveCommand<Unit, Unit> ConnectionCloseAllCmd { get; }
 
+        [Reactive]
+        public string HostFilter { get; set; }
+
         [Reactive]
         public int SortingSelected { get; set; }
 
@@ -77,7 +80,7 @@ namespace ServiceLib.ViewModels
         {
             var lastTime = DateTime.Now;
 
-            Observable.Interval(TimeSpan.FromSeconds(10))
+            Observable.Interval(TimeSpan.FromSeconds(5))
               .Subscribe(x =>
               {
                   if (!(AutoRefresh && _config.uiItem.showInTaskbar && _config.IsRunningCore(ECoreType.clash)))
@@ -118,12 +121,18 @@ namespace ServiceLib.ViewModels
             var lstModel = new List<ClashConnectionModel>();
             foreach (var item in connections ?? [])
             {
+                var host = $"{(string.IsNullOrEmpty(item.metadata.host) ? item.metadata.destinationIP : item.metadata.host)}:{item.metadata.destinationPort}";
+                if (HostFilter.IsNotEmpty() && !host.Contains(HostFilter))
+                {
+                    continue;
+                }
+
                 ClashConnectionModel model = new();
 
                 model.id = item.id;
                 model.network = item.metadata.network;
                 model.type = item.metadata.type;
-                model.host = $"{(string.IsNullOrEmpty(item.metadata.host) ? item.metadata.destinationIP : item.metadata.host)}:{item.metadata.destinationPort}";
+                model.host = host;
                 var sp = (dtNow - item.start);
                 model.time = sp.TotalSeconds < 0 ? 1 : sp.TotalSeconds;
                 model.upload = item.upload;

v2rayN/v2rayN/Views/ClashConnectionsView.xaml

@@ -1,11 +1,11 @@
 <reactiveui:ReactiveUserControl
     x:Class="v2rayN.Views.ClashConnectionsView"
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
-    xmlns:reactiveui="http://reactiveui.net"
-    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+    xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+    xmlns:reactiveui="http://reactiveui.net"
     xmlns:resx="clr-namespace:ServiceLib.Resx;assembly=ServiceLib"
     xmlns:vms="clr-namespace:ServiceLib.ViewModels;assembly=ServiceLib"
     d:DesignHeight="450"
@@ -20,6 +20,15 @@
             DockPanel.Dock="Top"
             Orientation="Horizontal">
 
+            <TextBox
+                x:Name="txtHostFilter"
+                Width="200"
+                Margin="8,0"
+                VerticalContentAlignment="Center"
+                materialDesign:HintAssist.Hint="{x:Static resx:ResUI.ConnectionsHostFilterTitle}"
+                materialDesign:TextFieldAssist.HasClearButton="True"
+                Style="{StaticResource DefTextBox}" />
+
             <TextBlock
                 Margin="8,0"
                 VerticalAlignment="Center"

v2rayN/v2rayN/Views/ClashConnectionsView.xaml.cs

@@ -23,6 +23,7 @@ namespace v2rayN.Views
                 this.BindCommand(ViewModel, vm => vm.ConnectionCloseCmd, v => v.menuConnectionClose).DisposeWith(disposables);
                 this.BindCommand(ViewModel, vm => vm.ConnectionCloseAllCmd, v => v.menuConnectionCloseAll).DisposeWith(disposables);
 
+                this.Bind(ViewModel, vm => vm.HostFilter, v => v.txtHostFilter.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.SortingSelected, v => v.cmbSorting.SelectedIndex).DisposeWith(disposables);
                 this.BindCommand(ViewModel, vm => vm.ConnectionCloseAllCmd, v => v.btnConnectionCloseAll).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.AutoRefresh, v => v.togAutoRefresh.IsChecked).DisposeWith(disposables);