refactor: code modernization

- Resolve static analysis warnings (CAxxxx) and optimize performance.

- Refactor UI bindings to eliminate async void and race conditions.

- Migrate Win32 API to LibraryImport for AOT compatibility.

v2rayN/AmazTool/AmazTool.csproj

@@ -2,6 +2,7 @@
 
 	<PropertyGroup>
 		<OutputType>Exe</OutputType>
+        <NeutralLanguage>en-US</NeutralLanguage>
 	</PropertyGroup>
 
 	<ItemGroup>

v2rayN/AmazTool/UpgradeApp.cs

@@ -4,7 +4,7 @@ using System.Text;
 
 namespace AmazTool;
 
-internal class UpgradeApp
+internal static class UpgradeApp
 {
     public static void Upgrade(string fileName)
     {
@@ -25,7 +25,7 @@ internal class UpgradeApp
             foreach (var pp in existing)
             {
                 var path = pp.MainModule?.FileName ?? "";
-                if (path.StartsWith(Utils.GetPath(Utils.V2rayN)))
+                if (path.StartsWith(Utils.GetPath(Utils.V2rayN), StringComparison.OrdinalIgnoreCase))
                 {
                     pp?.Kill();
                     pp?.WaitForExit(1000);
@@ -74,7 +74,7 @@ internal class UpgradeApp
                     var entryOutputPath = Utils.GetPath(fullName);
                     Directory.CreateDirectory(Path.GetDirectoryName(entryOutputPath)!);
                     //In the bin folder, if the file already exists, it will be skipped
-                    if (fullName.StartsWith("bin") && File.Exists(entryOutputPath))
+                    if (fullName.AsSpan().StartsWith("bin", StringComparison.OrdinalIgnoreCase) && File.Exists(entryOutputPath))
                     {
                         continue;
                     }

v2rayN/AmazTool/Utils.cs

@@ -2,7 +2,7 @@ using System.Diagnostics;
 
 namespace AmazTool;
 
-internal class Utils
+internal static class Utils
 {
     public static string GetExePath()
     {

v2rayN/Directory.Build.props

@@ -8,7 +8,7 @@
         <TargetFramework>net10.0</TargetFramework>
         <TargetLatestRuntimePatch>true</TargetLatestRuntimePatch>
         <CheckForOverflowUnderflow>true</CheckForOverflowUnderflow>
-        <NoWarn>CA1031;CS1591;NU1507;CA1416;IDE0058;IDE0053;IDE0200;NETSDK1206</NoWarn>
+        <NoWarn>CA1031;CS1591;NU1507;CA1416;IDE0058;IDE0053;IDE0200;IDE0022;NETSDK1206</NoWarn>
         <Nullable>annotations</Nullable>
         <ImplicitUsings>enable</ImplicitUsings>
         <Authors>2dust</Authors>

v2rayN/ServiceLib/AppConfig.cs

@@ -1,6 +1,6 @@
 namespace ServiceLib;
 
-public class Global
+public class AppConfig
 {
     #region const
 

v2rayN/ServiceLib/Base/MyReactiveObject.cs

@@ -2,6 +2,6 @@ namespace ServiceLib.Base;
 
 public class MyReactiveObject : ReactiveObject
 {
-    protected static Config? _config;
-    protected Func<EViewAction, object?, Task<bool>>? _updateView;
+    protected static Config? Config { get; set; }
+    protected Func<EViewAction, object?, Task<bool>>? UpdateView { get; set; }
 }

v2rayN/ServiceLib/Common/Extension.cs

@@ -45,9 +45,9 @@ public static class Extension
         }
     }
 
-    public static string TrimEx(this string? value)
+    public static string TrimSafe(this string? value)
     {
-        return value == null ? string.Empty : value.Trim();
+        return value?.Trim() ?? string.Empty;
     }
 
     public static string RemovePrefix(this string value, char prefix)
@@ -57,17 +57,26 @@ public static class Extension
 
     public static string RemovePrefix(this string value, string prefix)
     {
-        return value.StartsWith(prefix) ? value[prefix.Length..] : value;
+        return value.StartsWith(prefix, StringComparison.OrdinalIgnoreCase) ? value[prefix.Length..] : value;
     }
 
-    public static string UpperFirstChar(this string value)
+    public static string UpperFirstChar(this string? value)
     {
         if (string.IsNullOrEmpty(value))
         {
             return string.Empty;
         }
 
-        return char.ToUpper(value.First()) + value[1..];
+        if (char.IsUpper(value[0]))
+        {
+            return value;
+        }
+
+        return string.Create(value.Length, value, (span, oldStr) =>
+        {
+            oldStr.AsSpan().CopyTo(span);
+            span[0] = char.ToUpper(span[0], CultureInfo.InvariantCulture);
+        });
     }
 
     public static string AppendQuotes(this string value)

v2rayN/ServiceLib/Common/FileUtils.cs

@@ -41,7 +41,7 @@ public static class FileUtils
         {
             FileInfo fileInfo = new(fileName);
             using var originalFileStream = fileInfo.OpenRead();
-            using var decompressedFileStream = File.Create(toName != null ? Path.Combine(toPath, toName) : toPath);
+            using var decompressedFileStream = File.Create(toName is not null ? Path.Combine(toPath, toName) : toPath);
             using GZipStream decompressionStream = new(originalFileStream, CompressionMode.Decompress);
             decompressionStream.CopyTo(decompressedFileStream);
         }

v2rayN/ServiceLib/Common/JsonUtils.cs

@@ -100,7 +100,7 @@ public class JsonUtils
         var result = string.Empty;
         try
         {
-            if (obj == null)
+            if (obj is null)
             {
                 return result;
             }
@@ -125,7 +125,7 @@ public class JsonUtils
         var result = string.Empty;
         try
         {
-            if (obj == null)
+            if (obj is null)
             {
                 return result;
             }

v2rayN/ServiceLib/Common/Logging.cs

@@ -47,7 +47,7 @@ public class Logging
 
         _logger2.Debug($"{strTitle},{ex.Message}");
         _logger2.Debug(ex.StackTrace);
-        if (ex?.InnerException != null)
+        if (ex?.InnerException is not null)
         {
             _logger2.Error(ex.InnerException);
         }

v2rayN/ServiceLib/Common/ProcUtils.cs

@@ -53,7 +53,7 @@ public static class ProcUtils
             ProcessStartInfo startInfo = new()
             {
                 UseShellExecute = true,
-                Arguments = Global.RebootAs,
+                Arguments = AppConfig.RebootAs,
                 WorkingDirectory = Utils.StartupPath(),
                 FileName = Utils.GetExePath().AppendQuotes(),
                 Verb = blAdmin ? "runas" : null,

v2rayN/ServiceLib/Common/QRCodeUtils.cs

@@ -42,7 +42,7 @@ public class QRCodeUtils
             }
         }
 
-        if (lastDtle != null)
+        if (lastDtle is not null)
         {
             throw lastDtle;
         }
@@ -52,7 +52,7 @@ public class QRCodeUtils
 
     public static string? ParseBarcode(string? fileName)
     {
-        if (fileName == null || !File.Exists(fileName))
+        if (fileName is null || !File.Exists(fileName))
         {
             return null;
         }
@@ -96,7 +96,7 @@ public class QRCodeUtils
         var reader = new BarcodeReader();
         var result = reader.Decode(bitmap);
 
-        if (result != null && result.Text.IsNotEmpty())
+        if (result is not null && result.Text.IsNotEmpty())
         {
             return result.Text;
         }

v2rayN/ServiceLib/Common/Utils.cs

@@ -9,6 +9,9 @@ public class Utils
 {
     private static readonly string _tag = "Utils";
 
+    private static readonly char[] LineSeparators = { '\r', '\n' };
+    private static readonly char[] FieldSeparators = { ' ', '\t' };
+
     #region Conversion Functions
 
     /// <summary>
@@ -19,7 +22,7 @@ public class Utils
     /// <returns></returns>
     public static string List2String(List<string>? lst, bool wrap = false)
     {
-        if (lst == null || lst.Count == 0)
+        if (lst is null || lst.Count == 0)
         {
             return string.Empty;
         }
@@ -141,7 +144,7 @@ public class Utils
     {
         try
         {
-            return Convert.ToBoolean(obj);
+            return Convert.ToBoolean(obj, CultureInfo.InvariantCulture);
         }
         catch
         {
@@ -232,13 +235,8 @@ public class Utils
         {
             var byteOld = Encoding.UTF8.GetBytes(str);
             var byteNew = MD5.HashData(byteOld);
-            StringBuilder sb = new(32);
-            foreach (var b in byteNew)
-            {
-                sb.Append(b.ToString("x2"));
-            }
 
-            return sb.ToString();
+            return Convert.ToHexStringLower(byteNew);
         }
         catch (Exception ex)
         {
@@ -264,7 +262,7 @@ public class Utils
             using var md5 = MD5.Create();
             using var stream = File.OpenRead(filePath);
             var hash = md5.ComputeHash(stream);
-            return BitConverter.ToString(hash).Replace("-", "").ToLowerInvariant();
+            return Convert.ToHexStringLower(hash);
         }
         catch (Exception ex)
         {
@@ -335,24 +333,24 @@ public class Utils
     public static Dictionary<string, List<string>> ParseHostsToDictionary(string hostsContent)
     {
         var userHostsMap = hostsContent
-            .Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries)
+            .Split(LineSeparators, StringSplitOptions.RemoveEmptyEntries)
             .Select(line => line.Trim())
             // skip full-line comments
-            .Where(line => !string.IsNullOrWhiteSpace(line) && !line.StartsWith("#"))
+            .Where(line => !string.IsNullOrWhiteSpace(line) && !line.StartsWith('#'))
             // strip inline comments (truncate at '#')
             .Select(line =>
             {
                 var index = line.IndexOf('#');
-                return index >= 0 ? line.Substring(0, index).Trim() : line;
+                return index >= 0 ? line[..index].Trim() : line;
             })
             // ensure line still contains valid parts
             .Where(line => !string.IsNullOrWhiteSpace(line) && line.Contains(' '))
-            .Select(line => line.Split(new[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries))
+            .Select(line => line.Split(FieldSeparators, StringSplitOptions.RemoveEmptyEntries))
             .Where(parts => parts.Length >= 2)
-            .GroupBy(parts => parts[0])
+            .GroupBy(parts => parts[0], StringComparer.OrdinalIgnoreCase)
             .ToDictionary(
                 group => group.Key,
-                group => group.SelectMany(parts => parts.Skip(1)).ToList()
+                group => group.SelectMany(parts => parts.Skip(1)).Distinct(StringComparer.OrdinalIgnoreCase).ToList()
             );
 
         return userHostsMap;
@@ -660,15 +658,15 @@ public class Utils
         try
         {
             return blFull
-                ? $"{Global.AppName} - V{GetVersionInfo()} - {RuntimeInformation.ProcessArchitecture}"
-                : $"{Global.AppName}/{GetVersionInfo()}";
+                ? $"{AppConfig.AppName} - V{GetVersionInfo()} - {RuntimeInformation.ProcessArchitecture}"
+                : $"{AppConfig.AppName}/{GetVersionInfo()}";
         }
         catch (Exception ex)
         {
             Logging.SaveLog(_tag, ex);
         }
 
-        return Global.AppName;
+        return AppConfig.AppName;
     }
 
     public static string GetVersionInfo()
@@ -695,23 +693,16 @@ public class Utils
     /// <returns></returns>
     public static string GetGuid(bool full = true)
     {
-        try
+        var guid = Guid.NewGuid();
+
+        if (full)
         {
-            if (full)
-            {
-                return Guid.NewGuid().ToString("D");
-            }
-            else
-            {
-                return BitConverter.ToInt64(Guid.NewGuid().ToByteArray(), 0).ToString();
-            }
-        }
-        catch (Exception ex)
-        {
-            Logging.SaveLog(_tag, ex);
+            return guid.ToString("D");
         }
 
-        return string.Empty;
+        Span<byte> buffer = stackalloc byte[16];
+        guid.TryWriteBytes(buffer);
+        return BitConverter.ToInt64(buffer).ToString(CultureInfo.InvariantCulture);
     }
 
     public static bool IsGuidByParse(string strSrc)
@@ -722,22 +713,22 @@ public class Utils
     public static Dictionary<string, string> GetSystemHosts()
     {
         var systemHosts = new Dictionary<string, string>();
-        var hostFile = @"C:\Windows\System32\drivers\etc\hosts";
+        var hostFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.System), @"drivers\etc\hosts");
         try
         {
             if (File.Exists(hostFile))
             {
-                var hosts = File.ReadAllText(hostFile).Replace("\r", "");
-                var hostsList = hosts.Split(new[] { '\n' }, StringSplitOptions.RemoveEmptyEntries);
+                var hostsList = File.ReadAllText(hostFile)
+                    .Split(LineSeparators, StringSplitOptions.RemoveEmptyEntries);
 
                 foreach (var host in hostsList)
                 {
-                    if (host.StartsWith("#"))
+                    if (host.StartsWith('#'))
                     {
                         continue;
                     }
 
-                    var hostItem = host.Split(new[] { ' ', '\t' }, StringSplitOptions.RemoveEmptyEntries);
+                    var hostItem = host.Split(FieldSeparators, StringSplitOptions.RemoveEmptyEntries);
                     if (hostItem.Length < 2)
                     {
                         continue;
@@ -757,7 +748,7 @@ public class Utils
 
     public static async Task<string?> GetCliWrapOutput(string filePath, string? arg)
     {
-        return await GetCliWrapOutput(filePath, arg != null ? new List<string>() { arg } : null);
+        return await GetCliWrapOutput(filePath, arg is not null ? new List<string>() { arg } : null);
     }
 
     public static async Task<string?> GetCliWrapOutput(string filePath, IEnumerable<string>? args)
@@ -765,7 +756,7 @@ public class Utils
         try
         {
             var cmd = Cli.Wrap(filePath);
-            if (args != null)
+            if (args is not null)
             {
                 if (args.Count() == 1)
                 {
@@ -854,7 +845,7 @@ public class Utils
 
     public static string StartupPath()
     {
-        if (Environment.GetEnvironmentVariable(Global.LocalAppData) == "1")
+        if (Environment.GetEnvironmentVariable(AppConfig.LocalAppData) == "1")
         {
             return Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "v2rayN");
         }
@@ -917,9 +908,9 @@ public class Utils
             Directory.CreateDirectory(tempPath);
         }
 
-        if (coreType != null)
+        if (coreType is not null)
         {
-            tempPath = Path.Combine(tempPath, coreType.ToLower().ToString());
+            tempPath = Path.Combine(tempPath, coreType.ToLower(CultureInfo.InvariantCulture).ToString());
             if (!Directory.Exists(tempPath))
             {
                 Directory.CreateDirectory(tempPath);
@@ -1058,7 +1049,7 @@ public class Utils
     private static async Task<string?> GetLinuxUserId()
     {
         var arg = new List<string>() { "-c", "id -u" };
-        return await GetCliWrapOutput(Global.LinuxBash, arg);
+        return await GetCliWrapOutput(AppConfig.LinuxBash, arg);
     }
 
     public static async Task<string?> SetLinuxChmod(string? fileName)
@@ -1078,7 +1069,7 @@ public class Utils
             fileName = fileName.AppendQuotes();
         }
         var arg = new List<string>() { "-c", $"chmod +x {fileName}" };
-        return await GetCliWrapOutput(Global.LinuxBash, arg);
+        return await GetCliWrapOutput(AppConfig.LinuxBash, arg);
     }
 
     public static bool SetUnixFileMode(string? fileName)
@@ -1104,11 +1095,11 @@ public class Utils
         return false;
     }
 
-    public static async Task<string?> GetLinuxFontFamily(string lang)
+    public static async Task<string?> GetLinuxFontFamily()
     {
         // var arg = new List<string>() { "-c", $"fc-list :lang={lang} family" };
         var arg = new List<string>() { "-c", $"fc-list : family" };
-        return await GetCliWrapOutput(Global.LinuxBash, arg);
+        return await GetCliWrapOutput(AppConfig.LinuxBash, arg);
     }
 
     public static string? GetHomePath()

v2rayN/ServiceLib/Common/YamlUtils.cs

@@ -41,7 +41,7 @@ public class YamlUtils
     public static string ToYaml(object? obj)
     {
         var result = string.Empty;
-        if (obj == null)
+        if (obj is null)
         {
             return result;
         }

v2rayN/ServiceLib/GlobalUsings.cs

@@ -1,5 +1,7 @@
 global using System.Collections.Concurrent;
+global using System.ComponentModel;
 global using System.Diagnostics;
+global using System.Globalization;
 global using System.Net;
 global using System.Net.NetworkInformation;
 global using System.Net.Sockets;

v2rayN/ServiceLib/Handler/AutoStartupHandler.cs

@@ -44,7 +44,7 @@ public static class AutoStartupHandler
     private static async Task ClearTaskWindows()
     {
         var autoRunName = GetAutoRunNameWindows();
-        WindowsUtils.RegWriteValue(Global.AutoRunRegPath, autoRunName, "");
+        WindowsUtils.RegWriteValue(AppConfig.AutoRunRegPath, autoRunName, "");
         if (Utils.IsAdministrator())
         {
             AutoStartTaskService(autoRunName, "", "");
@@ -65,7 +65,7 @@ public static class AutoStartupHandler
             }
             else
             {
-                WindowsUtils.RegWriteValue(Global.AutoRunRegPath, autoRunName, exePath.AppendQuotes());
+                WindowsUtils.RegWriteValue(AppConfig.AutoRunRegPath, autoRunName, exePath.AppendQuotes());
             }
         }
         catch (Exception ex)
@@ -117,7 +117,7 @@ public static class AutoStartupHandler
 
     private static string GetAutoRunNameWindows()
     {
-        return $"{Global.AutoRunName}_{Utils.GetMd5(Utils.StartupPath())}";
+        return $"{AppConfig.AutoRunName}_{Utils.GetMd5(Utils.StartupPath())}";
     }
 
     #endregion Windows
@@ -141,7 +141,7 @@ public static class AutoStartupHandler
     {
         try
         {
-            var linuxConfig = EmbedUtils.GetEmbedText(Global.LinuxAutostartConfig);
+            var linuxConfig = EmbedUtils.GetEmbedText(AppConfig.LinuxAutostartConfig);
             if (linuxConfig.IsNotEmpty())
             {
                 linuxConfig = linuxConfig.Replace("$ExecPath$", Utils.GetExePath());
@@ -159,7 +159,7 @@ public static class AutoStartupHandler
 
     private static string GetHomePathLinux()
     {
-        var homePath = Path.Combine(Utils.GetHomePath(), ".config", "autostart", $"{Global.AppName}.desktop");
+        var homePath = Path.Combine(Utils.GetHomePath(), ".config", "autostart", $"{AppConfig.AppName}.desktop");
         Directory.CreateDirectory(Path.GetDirectoryName(homePath));
         return homePath;
     }
@@ -176,7 +176,7 @@ public static class AutoStartupHandler
             if (File.Exists(launchAgentPath))
             {
                 var args = new[] { "-c", $"launchctl unload -w \"{launchAgentPath}\"" };
-                await Utils.GetCliWrapOutput(Global.LinuxBash, args);
+                await Utils.GetCliWrapOutput(AppConfig.LinuxBash, args);
 
                 File.Delete(launchAgentPath);
             }
@@ -196,7 +196,7 @@ public static class AutoStartupHandler
             await File.WriteAllTextAsync(launchAgentPath, plistContent);
 
             var args = new[] { "-c", $"launchctl load -w \"{launchAgentPath}\"" };
-            await Utils.GetCliWrapOutput(Global.LinuxBash, args);
+            await Utils.GetCliWrapOutput(AppConfig.LinuxBash, args);
         }
         catch (Exception ex)
         {
@@ -207,7 +207,7 @@ public static class AutoStartupHandler
     private static string GetLaunchAgentPathMacOS()
     {
         var homePath = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
-        var launchAgentPath = Path.Combine(homePath, "Library", "LaunchAgents", $"{Global.AppName}-LaunchAgent.plist");
+        var launchAgentPath = Path.Combine(homePath, "Library", "LaunchAgents", $"{AppConfig.AppName}-LaunchAgent.plist");
         Directory.CreateDirectory(Path.GetDirectoryName(launchAgentPath));
         return launchAgentPath;
     }
@@ -221,7 +221,7 @@ public static class AutoStartupHandler
 <plist version=""1.0"">
 <dict>
     <key>Label</key>
-    <string>{Global.AppName}-LaunchAgent</string>
+    <string>{AppConfig.AppName}-LaunchAgent</string>
     <key>ProgramArguments</key>
     <array>
         <string>/bin/sh</string>

v2rayN/ServiceLib/Handler/ConfigHandler.cs

@@ -4,7 +4,7 @@ namespace ServiceLib.Handler;
 
 public static class ConfigHandler
 {
-    private static readonly string _configRes = Global.ConfigFileName;
+    private static readonly string _configRes = AppConfig.ConfigFileName;
     private static readonly string _tag = "ConfigHandler";
 
     #region ConfigHandler
@@ -42,7 +42,7 @@ public static class ConfigHandler
             MuxEnabled = false,
         };
 
-        if (config.Inbound == null)
+        if (config.Inbound is null)
         {
             config.Inbound = new List<InItem>();
             InItem inItem = new()
@@ -67,7 +67,7 @@ public static class ConfigHandler
         config.RoutingBasicItem ??= new();
         if (config.RoutingBasicItem.DomainStrategy.IsNullOrEmpty())
         {
-            config.RoutingBasicItem.DomainStrategy = Global.DomainStrategies.First();
+            config.RoutingBasicItem.DomainStrategy = AppConfig.DomainStrategies.First();
         }
 
         config.KcpItem ??= new KcpItem
@@ -104,16 +104,17 @@ public static class ConfigHandler
 
         if (config.UiItem.CurrentLanguage.IsNullOrEmpty())
         {
-            config.UiItem.CurrentLanguage = Thread.CurrentThread.CurrentCulture.TwoLetterISOLanguageName.Equals("zh", StringComparison.CurrentCultureIgnoreCase)
-                ? Global.Languages.First()
-                : Global.Languages[2];
+            config.UiItem.CurrentLanguage = Thread.CurrentThread.CurrentCulture.TwoLetterISOLanguageName
+                .Equals("zh", StringComparison.OrdinalIgnoreCase)
+                ? AppConfig.Languages.First()
+                : AppConfig.Languages[2];
         }
 
         config.ConstItem ??= new ConstItem();
 
         config.SimpleDNSItem ??= InitBuiltinSimpleDNS();
         config.SimpleDNSItem.GlobalFakeIp ??= true;
-        config.SimpleDNSItem.BootstrapDNS ??= Global.DomainPureIPDNSAddress.FirstOrDefault();
+        config.SimpleDNSItem.BootstrapDNS ??= AppConfig.DomainPureIPDNSAddress.FirstOrDefault();
 
         config.SpeedTestItem ??= new();
         if (config.SpeedTestItem.SpeedTestTimeout < 10)
@@ -122,11 +123,11 @@ public static class ConfigHandler
         }
         if (config.SpeedTestItem.SpeedTestUrl.IsNullOrEmpty())
         {
-            config.SpeedTestItem.SpeedTestUrl = Global.SpeedTestUrls.First();
+            config.SpeedTestItem.SpeedTestUrl = AppConfig.SpeedTestUrls.First();
         }
         if (config.SpeedTestItem.SpeedPingTestUrl.IsNullOrEmpty())
         {
-            config.SpeedTestItem.SpeedPingTestUrl = Global.SpeedPingTestUrls.First();
+            config.SpeedTestItem.SpeedPingTestUrl = AppConfig.SpeedPingTestUrls.First();
         }
         if (config.SpeedTestItem.MixedConcurrencyCount < 1)
         {
@@ -142,7 +143,7 @@ public static class ConfigHandler
 
         config.Mux4SboxItem ??= new()
         {
-            Protocol = Global.SingboxMuxs.First(),
+            Protocol = AppConfig.SingboxMuxs.First(),
             MaxConnections = 8
         };
 
@@ -165,7 +166,7 @@ public static class ConfigHandler
 
         if (config.SystemProxyItem.SystemProxyExceptions.IsNullOrEmpty())
         {
-            config.SystemProxyItem.SystemProxyExceptions = Utils.IsWindows() ? Global.SystemProxyExceptionsWindows : Global.SystemProxyExceptionsLinux;
+            config.SystemProxyItem.SystemProxyExceptions = Utils.IsWindows() ? AppConfig.SystemProxyExceptionsWindows : AppConfig.SystemProxyExceptionsLinux;
         }
 
         return config;
@@ -287,16 +288,16 @@ public static class ConfigHandler
     {
         profileItem.ConfigType = EConfigType.VMess;
 
-        profileItem.Address = profileItem.Address.TrimEx();
-        profileItem.Id = profileItem.Id.TrimEx();
-        profileItem.Security = profileItem.Security.TrimEx();
-        profileItem.Network = profileItem.Network.TrimEx();
-        profileItem.HeaderType = profileItem.HeaderType.TrimEx();
-        profileItem.RequestHost = profileItem.RequestHost.TrimEx();
-        profileItem.Path = profileItem.Path.TrimEx();
-        profileItem.StreamSecurity = profileItem.StreamSecurity.TrimEx();
+        profileItem.Address = profileItem.Address.TrimSafe();
+        profileItem.Id = profileItem.Id.TrimSafe();
+        profileItem.Security = profileItem.Security.TrimSafe();
+        profileItem.Network = profileItem.Network.TrimSafe();
+        profileItem.HeaderType = profileItem.HeaderType.TrimSafe();
+        profileItem.RequestHost = profileItem.RequestHost.TrimSafe();
+        profileItem.Path = profileItem.Path.TrimSafe();
+        profileItem.StreamSecurity = profileItem.StreamSecurity.TrimSafe();
 
-        if (!Global.VmessSecurities.Contains(profileItem.Security))
+        if (!AppConfig.VmessSecurities.Contains(profileItem.Security))
         {
             return -1;
         }
@@ -361,7 +362,7 @@ public static class ConfigHandler
             else if (profileItem.ConfigType.IsGroupType())
             {
                 var profileGroupItem = await AppManager.Instance.GetProfileGroupItem(it.IndexId);
-                await AddGroupServerCommon(config, profileItem, profileGroupItem, true);
+                await AddGroupServerCommon(profileItem, profileGroupItem, true);
             }
             else
             {
@@ -407,7 +408,7 @@ public static class ConfigHandler
             return 0;
         }
 
-        if (await SQLiteHelper.Instance.TableAsync<ProfileItem>().FirstOrDefaultAsync(t => t.IndexId == config.IndexId) != null)
+        if (await SQLiteHelper.Instance.TableAsync<ProfileItem>().FirstOrDefaultAsync(t => t.IndexId == config.IndexId) is not null)
         {
             return 0;
         }
@@ -443,76 +444,42 @@ public static class ConfigHandler
     /// Move a server in the list to a different position
     /// Supports moving to top, up, down, bottom or specific position
     /// </summary>
-    /// <param name="config">Current configuration</param>
     /// <param name="lstProfile">List of server profiles</param>
     /// <param name="index">Index of the server to move</param>
     /// <param name="eMove">Direction to move the server</param>
     /// <param name="pos">Target position when using EMove.Position</param>
     /// <returns>0 if successful, -1 if failed</returns>
-    public static async Task<int> MoveServer(Config config, List<ProfileItem> lstProfile, int index, EMove eMove, int pos = -1)
+    public static Task<int> MoveServer(List<ProfileItem> lstProfile, int index, EMove eMove, int pos = -1)
     {
         var count = lstProfile.Count;
-        if (index < 0 || index > lstProfile.Count - 1)
+        if (index < 0 || index >= count)
         {
-            return -1;
+            return Task.FromResult(-1);
         }
 
-        for (var i = 0; i < lstProfile.Count; i++)
+        if ((eMove is EMove.Top or EMove.Up && index == 0) ||
+            (eMove is EMove.Down or EMove.Bottom && index == count - 1))
+        {
+            return Task.FromResult(0);
+        }
+
+        for (var i = 0; i < count; i++)
         {
             ProfileExManager.Instance.SetSort(lstProfile[i].IndexId, (i + 1) * 10);
         }
 
-        var sort = 0;
-        switch (eMove)
+        var sort = eMove switch
         {
-            case EMove.Top:
-                {
-                    if (index == 0)
-                    {
-                        return 0;
-                    }
-                    sort = ProfileExManager.Instance.GetSort(lstProfile.First().IndexId) - 1;
-
-                    break;
-                }
-            case EMove.Up:
-                {
-                    if (index == 0)
-                    {
-                        return 0;
-                    }
-                    sort = ProfileExManager.Instance.GetSort(lstProfile[index - 1].IndexId) - 1;
-
-                    break;
-                }
-
-            case EMove.Down:
-                {
-                    if (index == count - 1)
-                    {
-                        return 0;
-                    }
-                    sort = ProfileExManager.Instance.GetSort(lstProfile[index + 1].IndexId) + 1;
-
-                    break;
-                }
-            case EMove.Bottom:
-                {
-                    if (index == count - 1)
-                    {
-                        return 0;
-                    }
-                    sort = ProfileExManager.Instance.GetSort(lstProfile[^1].IndexId) + 1;
-
-                    break;
-                }
-            case EMove.Position:
-                sort = (pos * 10) + 1;
-                break;
-        }
+            EMove.Top => ProfileExManager.Instance.GetSort(lstProfile[0].IndexId) - 1,
+            EMove.Up => ProfileExManager.Instance.GetSort(lstProfile[index - 1].IndexId) - 1,
+            EMove.Down => ProfileExManager.Instance.GetSort(lstProfile[index + 1].IndexId) + 1,
+            EMove.Bottom => ProfileExManager.Instance.GetSort(lstProfile[^1].IndexId) + 1,
+            EMove.Position => (pos * 10) + 1,
+            _ => 0
+        };
 
         ProfileExManager.Instance.SetSort(lstProfile[index].IndexId, sort);
-        return await Task.FromResult(0);
+        return Task.FromResult(0);
     }
 
     /// <summary>
@@ -552,7 +519,7 @@ public static class ConfigHandler
         profileItem.ConfigType = EConfigType.Custom;
         if (profileItem.Remarks.IsNullOrEmpty())
         {
-            profileItem.Remarks = $"import custom@{DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss")}";
+            profileItem.Remarks = $"import custom@{DateTime.Now:yyyy/MM/dd HH:mm:ss}";
         }
 
         await AddServerCommon(config, profileItem, true);
@@ -564,17 +531,13 @@ public static class ConfigHandler
     /// Edit an existing custom server configuration
     /// Updates the server's properties without changing the file
     /// </summary>
-    /// <param name="config">Current configuration</param>
     /// <param name="profileItem">Profile item with updated properties</param>
     /// <returns>0 if successful, -1 if failed</returns>
-    public static async Task<int> EditCustomServer(Config config, ProfileItem profileItem)
+    public static async Task<int> EditCustomServer(ProfileItem profileItem)
     {
         var item = await AppManager.Instance.GetProfileItem(profileItem.IndexId);
-        if (item is null)
-        {
-            item = profileItem;
-        }
-        else
+
+        if (item is not null)
         {
             item.Remarks = profileItem.Remarks;
             item.Address = profileItem.Address;
@@ -583,14 +546,9 @@ public static class ConfigHandler
             item.PreSocksPort = profileItem.PreSocksPort;
         }
 
-        if (await SQLiteHelper.Instance.UpdateAsync(item) > 0)
-        {
-            return 0;
-        }
-        else
-        {
-            return -1;
-        }
+        item ??= profileItem;
+
+        return await SQLiteHelper.Instance.UpdateAsync(item) > 0 ? 0 : -1;
 
         //ToJsonFile(config);
     }
@@ -607,9 +565,9 @@ public static class ConfigHandler
     {
         profileItem.ConfigType = EConfigType.Shadowsocks;
 
-        profileItem.Address = profileItem.Address.TrimEx();
-        profileItem.Id = profileItem.Id.TrimEx();
-        profileItem.Security = profileItem.Security.TrimEx();
+        profileItem.Address = profileItem.Address.TrimSafe();
+        profileItem.Id = profileItem.Id.TrimSafe();
+        profileItem.Security = profileItem.Security.TrimSafe();
 
         if (!AppManager.Instance.GetShadowsocksSecurities(profileItem).Contains(profileItem.Security))
         {
@@ -637,7 +595,7 @@ public static class ConfigHandler
     {
         profileItem.ConfigType = EConfigType.SOCKS;
 
-        profileItem.Address = profileItem.Address.TrimEx();
+        profileItem.Address = profileItem.Address.TrimSafe();
 
         await AddServerCommon(config, profileItem, toFile);
 
@@ -656,7 +614,7 @@ public static class ConfigHandler
     {
         profileItem.ConfigType = EConfigType.HTTP;
 
-        profileItem.Address = profileItem.Address.TrimEx();
+        profileItem.Address = profileItem.Address.TrimSafe();
 
         await AddServerCommon(config, profileItem, toFile);
 
@@ -675,11 +633,11 @@ public static class ConfigHandler
     {
         profileItem.ConfigType = EConfigType.Trojan;
 
-        profileItem.Address = profileItem.Address.TrimEx();
-        profileItem.Id = profileItem.Id.TrimEx();
+        profileItem.Address = profileItem.Address.TrimSafe();
+        profileItem.Id = profileItem.Id.TrimSafe();
         if (profileItem.StreamSecurity.IsNullOrEmpty())
         {
-            profileItem.StreamSecurity = Global.StreamSecurity;
+            profileItem.StreamSecurity = AppConfig.StreamSecurity;
         }
         if (profileItem.Id.IsNullOrEmpty())
         {
@@ -705,14 +663,14 @@ public static class ConfigHandler
         profileItem.ConfigType = EConfigType.Hysteria2;
         //profileItem.CoreType = ECoreType.sing_box;
 
-        profileItem.Address = profileItem.Address.TrimEx();
-        profileItem.Id = profileItem.Id.TrimEx();
-        profileItem.Path = profileItem.Path.TrimEx();
+        profileItem.Address = profileItem.Address.TrimSafe();
+        profileItem.Id = profileItem.Id.TrimSafe();
+        profileItem.Path = profileItem.Path.TrimSafe();
         profileItem.Network = string.Empty;
 
         if (profileItem.StreamSecurity.IsNullOrEmpty())
         {
-            profileItem.StreamSecurity = Global.StreamSecurity;
+            profileItem.StreamSecurity = AppConfig.StreamSecurity;
         }
         if (profileItem.Id.IsNullOrEmpty())
         {
@@ -738,19 +696,19 @@ public static class ConfigHandler
         profileItem.ConfigType = EConfigType.TUIC;
         profileItem.CoreType = ECoreType.sing_box;
 
-        profileItem.Address = profileItem.Address.TrimEx();
-        profileItem.Id = profileItem.Id.TrimEx();
-        profileItem.Security = profileItem.Security.TrimEx();
+        profileItem.Address = profileItem.Address.TrimSafe();
+        profileItem.Id = profileItem.Id.TrimSafe();
+        profileItem.Security = profileItem.Security.TrimSafe();
         profileItem.Network = string.Empty;
 
-        if (!Global.TuicCongestionControls.Contains(profileItem.HeaderType))
+        if (!AppConfig.TuicCongestionControls.Contains(profileItem.HeaderType))
         {
-            profileItem.HeaderType = Global.TuicCongestionControls.FirstOrDefault()!;
+            profileItem.HeaderType = AppConfig.TuicCongestionControls.FirstOrDefault()!;
         }
 
         if (profileItem.StreamSecurity.IsNullOrEmpty())
         {
-            profileItem.StreamSecurity = Global.StreamSecurity;
+            profileItem.StreamSecurity = AppConfig.StreamSecurity;
         }
         if (profileItem.Alpn.IsNullOrEmpty())
         {
@@ -778,15 +736,15 @@ public static class ConfigHandler
     {
         profileItem.ConfigType = EConfigType.WireGuard;
 
-        profileItem.Address = profileItem.Address.TrimEx();
-        profileItem.Id = profileItem.Id.TrimEx();
-        profileItem.PublicKey = profileItem.PublicKey.TrimEx();
-        profileItem.Path = profileItem.Path.TrimEx();
-        profileItem.RequestHost = profileItem.RequestHost.TrimEx();
+        profileItem.Address = profileItem.Address.TrimSafe();
+        profileItem.Id = profileItem.Id.TrimSafe();
+        profileItem.PublicKey = profileItem.PublicKey.TrimSafe();
+        profileItem.Path = profileItem.Path.TrimSafe();
+        profileItem.RequestHost = profileItem.RequestHost.TrimSafe();
         profileItem.Network = string.Empty;
         if (profileItem.ShortId.IsNullOrEmpty())
         {
-            profileItem.ShortId = Global.TunMtus.First().ToString();
+            profileItem.ShortId = AppConfig.TunMtus[0].ToString(CultureInfo.InvariantCulture);
         }
 
         if (profileItem.Id.IsNullOrEmpty())
@@ -812,13 +770,13 @@ public static class ConfigHandler
         profileItem.ConfigType = EConfigType.Anytls;
         profileItem.CoreType = ECoreType.sing_box;
 
-        profileItem.Address = profileItem.Address.TrimEx();
-        profileItem.Id = profileItem.Id.TrimEx();
-        profileItem.Security = profileItem.Security.TrimEx();
+        profileItem.Address = profileItem.Address.TrimSafe();
+        profileItem.Id = profileItem.Id.TrimSafe();
+        profileItem.Security = profileItem.Security.TrimSafe();
         profileItem.Network = string.Empty;
         if (profileItem.StreamSecurity.IsNullOrEmpty())
         {
-            profileItem.StreamSecurity = Global.StreamSecurity;
+            profileItem.StreamSecurity = AppConfig.StreamSecurity;
         }
         if (profileItem.Id.IsNullOrEmpty())
         {
@@ -864,10 +822,10 @@ public static class ConfigHandler
                               Delay = t33?.Delay ?? 0,
                               Speed = t33?.Speed ?? 0,
                               Sort = t33?.Sort ?? 0,
-                              TodayDown = (t22?.TodayDown ?? 0).ToString("D16"),
-                              TodayUp = (t22?.TodayUp ?? 0).ToString("D16"),
-                              TotalDown = (t22?.TotalDown ?? 0).ToString("D16"),
-                              TotalUp = (t22?.TotalUp ?? 0).ToString("D16"),
+                              TodayDown = (t22?.TodayDown ?? 0).ToString("D16", CultureInfo.InvariantCulture),
+                              TodayUp = (t22?.TodayUp ?? 0).ToString("D16", CultureInfo.InvariantCulture),
+                              TotalDown = (t22?.TotalDown ?? 0).ToString("D16", CultureInfo.InvariantCulture),
+                              TotalUp = (t22?.TotalUp ?? 0).ToString("D16", CultureInfo.InvariantCulture),
                           }).ToList();
 
         Enum.TryParse(colName, true, out EServerColName name);
@@ -956,18 +914,18 @@ public static class ConfigHandler
     {
         profileItem.ConfigType = EConfigType.VLESS;
 
-        profileItem.Address = profileItem.Address.TrimEx();
-        profileItem.Id = profileItem.Id.TrimEx();
-        profileItem.Security = profileItem.Security.TrimEx();
-        profileItem.Network = profileItem.Network.TrimEx();
-        profileItem.HeaderType = profileItem.HeaderType.TrimEx();
-        profileItem.RequestHost = profileItem.RequestHost.TrimEx();
-        profileItem.Path = profileItem.Path.TrimEx();
-        profileItem.StreamSecurity = profileItem.StreamSecurity.TrimEx();
+        profileItem.Address = profileItem.Address.TrimSafe();
+        profileItem.Id = profileItem.Id.TrimSafe();
+        profileItem.Security = profileItem.Security.TrimSafe();
+        profileItem.Network = profileItem.Network.TrimSafe();
+        profileItem.HeaderType = profileItem.HeaderType.TrimSafe();
+        profileItem.RequestHost = profileItem.RequestHost.TrimSafe();
+        profileItem.Path = profileItem.Path.TrimSafe();
+        profileItem.StreamSecurity = profileItem.StreamSecurity.TrimSafe();
 
-        if (!Global.Flows.Contains(profileItem.Flow))
+        if (!AppConfig.Flows.Contains(profileItem.Flow))
         {
-            profileItem.Flow = Global.Flows.First();
+            profileItem.Flow = AppConfig.Flows.First();
         }
         if (profileItem.Id.IsNullOrEmpty())
         {
@@ -975,7 +933,7 @@ public static class ConfigHandler
         }
         if (profileItem.Security.IsNullOrEmpty())
         {
-            profileItem.Security = Global.None;
+            profileItem.Security = AppConfig.None;
         }
 
         await AddServerCommon(config, profileItem, toFile);
@@ -993,7 +951,7 @@ public static class ConfigHandler
     public static async Task<Tuple<int, int>> DedupServerList(Config config, string subId)
     {
         var lstProfile = await AppManager.Instance.ProfileItems(subId);
-        if (lstProfile == null)
+        if (lstProfile is null)
         {
             return new Tuple<int, int>(0, 0);
         }
@@ -1035,8 +993,8 @@ public static class ConfigHandler
 
         if (profileItem.StreamSecurity.IsNotEmpty())
         {
-            if (profileItem.StreamSecurity != Global.StreamSecurity
-                 && profileItem.StreamSecurity != Global.StreamSecurityReality)
+            if (profileItem.StreamSecurity is not AppConfig.StreamSecurity
+                 and not AppConfig.StreamSecurityReality)
             {
                 profileItem.StreamSecurity = string.Empty;
             }
@@ -1044,18 +1002,20 @@ public static class ConfigHandler
             {
                 if (profileItem.AllowInsecure.IsNullOrEmpty())
                 {
-                    profileItem.AllowInsecure = config.CoreBasicItem.DefAllowInsecure.ToString().ToLower();
+                    profileItem.AllowInsecure = config.CoreBasicItem.DefAllowInsecure
+                        .ToString()
+                        .ToLowerInvariant();
                 }
-                if (profileItem.Fingerprint.IsNullOrEmpty() && profileItem.StreamSecurity == Global.StreamSecurityReality)
+                if (profileItem.Fingerprint.IsNullOrEmpty() && profileItem.StreamSecurity == AppConfig.StreamSecurityReality)
                 {
                     profileItem.Fingerprint = config.CoreBasicItem.DefFingerprint;
                 }
             }
         }
 
-        if (profileItem.Network.IsNotEmpty() && !Global.Networks.Contains(profileItem.Network))
+        if (profileItem.Network.IsNotEmpty() && !AppConfig.Networks.Contains(profileItem.Network))
         {
-            profileItem.Network = Global.DefaultNetwork;
+            profileItem.Network = AppConfig.DefaultNetwork;
         }
 
         var maxSort = -1;
@@ -1080,7 +1040,7 @@ public static class ConfigHandler
         return 0;
     }
 
-    public static async Task<int> AddGroupServerCommon(Config config, ProfileItem profileItem, ProfileGroupItem profileGroupItem, bool toFile = true)
+    public static async Task<int> AddGroupServerCommon(ProfileItem profileItem, ProfileGroupItem profileGroupItem, bool toFile = true)
     {
         var maxSort = -1;
         if (profileItem.IndexId.IsNullOrEmpty())
@@ -1097,7 +1057,7 @@ public static class ConfigHandler
         if (toFile)
         {
             await SQLiteHelper.Instance.ReplaceAsync(profileItem);
-            if (profileGroupItem != null)
+            if (profileGroupItem is not null)
             {
                 profileGroupItem.IndexId = profileItem.IndexId;
                 await ProfileGroupItemManager.Instance.SaveItemAsync(profileGroupItem);
@@ -1121,7 +1081,7 @@ public static class ConfigHandler
     /// <returns>True if the profiles match, false otherwise</returns>
     private static bool CompareProfileItem(ProfileItem? o, ProfileItem? n, bool remarks)
     {
-        if (o == null || n == null)
+        if (o is null || n is null)
         {
             return false;
         }
@@ -1142,11 +1102,11 @@ public static class ConfigHandler
                && AreEqual(o.Fingerprint, n.Fingerprint)
                && AreEqual(o.PublicKey, n.PublicKey)
                && AreEqual(o.ShortId, n.ShortId)
-               && (!remarks || o.Remarks == n.Remarks);
+               && (!remarks || string.Equals(o.Remarks, n.Remarks, StringComparison.Ordinal));
 
         static bool AreEqual(string? a, string? b)
         {
-            return string.Equals(a, b) || (string.IsNullOrEmpty(a) && string.IsNullOrEmpty(b));
+            return string.Equals(a ?? "", b ?? "", StringComparison.Ordinal);
         }
     }
 
@@ -1154,15 +1114,14 @@ public static class ConfigHandler
     /// Remove a single server profile by its index ID
     /// Deletes the configuration file if it's a custom config
     /// </summary>
-    /// <param name="config">Current configuration</param>
     /// <param name="indexId">Index ID of the profile to remove</param>
     /// <returns>0 if successful</returns>
-    private static async Task<int> RemoveProfileItem(Config config, string indexId)
+    private static async Task<int> RemoveProfileItem(string indexId)
     {
         try
         {
             var item = await AppManager.Instance.GetProfileItem(indexId);
-            if (item == null)
+            if (item is null)
             {
                 return 0;
             }
@@ -1185,12 +1144,11 @@ public static class ConfigHandler
     /// Create a group server that combines multiple servers for load balancing
     /// Generates a configuration file that references multiple servers
     /// </summary>
-    /// <param name="config">Current configuration</param>
     /// <param name="selecteds">Selected servers to combine</param>
     /// <param name="coreType">Core type to use (Xray or sing_box)</param>
     /// <param name="multipleLoad">Load balancing algorithm</param>
     /// <returns>Result object with success state and data</returns>
-    public static async Task<RetResult> AddGroupServer4Multiple(Config config, List<ProfileItem> selecteds, ECoreType coreType, EMultipleLoad multipleLoad, string? subId)
+    public static async Task<RetResult> AddGroupServer4Multiple(List<ProfileItem> selecteds, ECoreType coreType, EMultipleLoad multipleLoad, string? subId)
     {
         var result = new RetResult();
 
@@ -1237,7 +1195,7 @@ public static class ConfigHandler
             MultipleLoad = multipleLoad,
             IndexId = indexId,
         };
-        var ret = await AddGroupServerCommon(config, profile, profileGroup, true);
+        var ret = await AddGroupServerCommon(profile, profileGroup, true);
         result.Success = ret == 0;
         result.Data = indexId;
         return result;
@@ -1269,7 +1227,7 @@ public static class ConfigHandler
             {
                 CoreType = ECoreType.sing_box,
                 ConfigType = EConfigType.SOCKS,
-                Address = Global.Loopback,
+                Address = AppConfig.Loopback,
                 SpiderX = tun2SocksAddress, // Tun2SocksAddress
                 Port = AppManager.Instance.GetLocalPort(EInboundProtocol.socks)
             };
@@ -1281,7 +1239,7 @@ public static class ConfigHandler
             {
                 CoreType = preCoreType,
                 ConfigType = EConfigType.SOCKS,
-                Address = Global.Loopback,
+                Address = AppConfig.Loopback,
                 Port = node.PreSocksPort.Value,
             };
         }
@@ -1352,7 +1310,10 @@ public static class ConfigHandler
         foreach (var str in arrData)
         {
             //maybe sub
-            if (!isSub && (str.StartsWith(Global.HttpsProtocol) || str.StartsWith(Global.HttpProtocol)))
+            if (
+                !isSub && (str.StartsWith(AppConfig.HttpsProtocol, StringComparison.OrdinalIgnoreCase)
+                || str.StartsWith(AppConfig.HttpProtocol, StringComparison.OrdinalIgnoreCase))
+               )
             {
                 if (await AddSubItem(config, str) == 0)
                 {
@@ -1438,7 +1399,7 @@ public static class ConfigHandler
         {
             lstProfiles = V2rayFmt.ResolveFullArray(strData, subRemarks);
         }
-        if (lstProfiles != null && lstProfiles.Count > 0)
+        if (lstProfiles is not null && lstProfiles.Count > 0)
         {
             if (isSub && subid.IsNotEmpty())
             {
@@ -1462,31 +1423,30 @@ public static class ConfigHandler
         }
 
         ProfileItem? profileItem = null;
-        //Is sing-box configuration
-        if (profileItem is null)
-        {
-            profileItem = SingboxFmt.ResolveFull(strData, subRemarks);
-        }
-        //Is v2ray configuration
-        if (profileItem is null)
-        {
-            profileItem = V2rayFmt.ResolveFull(strData, subRemarks);
-        }
+
         //Is Html Page
         if (profileItem is null && HtmlPageFmt.IsHtmlPage(strData))
         {
             return -1;
         }
-        //Is Clash configuration
-        if (profileItem is null)
+
+        var resolvers = new Func<string, string?, ProfileItem?>[]
         {
-            profileItem = ClashFmt.ResolveFull(strData, subRemarks);
-        }
-        //Is hysteria configuration
-        if (profileItem is null)
+            SingboxFmt.ResolveFull,
+            V2rayFmt.ResolveFull,
+            ClashFmt.ResolveFull,
+            Hysteria2Fmt.ResolveFull2
+        };
+
+        foreach (var resolver in resolvers)
         {
-            profileItem = Hysteria2Fmt.ResolveFull2(strData, subRemarks);
+            profileItem ??= resolver(strData, subRemarks);
+            if (profileItem is not null)
+            {
+                break;
+            }
         }
+
         if (profileItem is null || profileItem.Address.IsNullOrEmpty())
         {
             return -1;
@@ -1600,24 +1560,24 @@ public static class ConfigHandler
         }
 
         //Select active node
-        if (activeProfile != null)
+        if (activeProfile is not null)
         {
             var lstSub = await AppManager.Instance.ProfileItems(subid);
             var existItem = lstSub?.FirstOrDefault(t => config.UiItem.EnableUpdateSubOnlyRemarksExist ? t.Remarks == activeProfile.Remarks : CompareProfileItem(t, activeProfile, true));
-            if (existItem != null)
+            if (existItem is not null)
             {
                 await ConfigHandler.SetDefaultServerIndex(config, existItem.IndexId);
             }
         }
 
         //Keep the last traffic statistics
-        if (lstOriSub != null)
+        if (lstOriSub is not null)
         {
             var lstSub = await AppManager.Instance.ProfileItems(subid);
             foreach (var item in lstSub)
             {
                 var existItem = lstOriSub?.FirstOrDefault(t => config.UiItem.EnableUpdateSubOnlyRemarksExist ? t.Remarks == item.Remarks : CompareProfileItem(t, item, true));
-                if (existItem != null)
+                if (existItem is not null)
                 {
                     await StatisticsManager.Instance.CloneServerStatItem(existItem.IndexId, item.IndexId);
                 }
@@ -1653,12 +1613,12 @@ public static class ConfigHandler
         };
 
         var uri = Utils.TryUri(url);
-        if (uri == null)
+        if (uri is null)
         {
             return -1;
         }
         //Do not allow http protocol
-        if (url.StartsWith(Global.HttpProtocol) && !Utils.IsPrivateNetwork(uri.IdnHost))
+        if (url.StartsWith(AppConfig.HttpProtocol, StringComparison.OrdinalIgnoreCase) && !Utils.IsPrivateNetwork(uri.IdnHost))
         {
             //TODO Temporary reminder to be removed later
             NoticeManager.Instance.Enqueue(ResUI.InsecureUrlProtocol);
@@ -1835,7 +1795,7 @@ public static class ConfigHandler
         }
 
         var lstRules = JsonUtils.Deserialize<List<RulesItem>>(strData);
-        if (lstRules == null)
+        if (lstRules is null)
         {
             return -1;
         }
@@ -2028,14 +1988,14 @@ public static class ConfigHandler
         }
 
         var template = JsonUtils.Deserialize<RoutingTemplate>(templateContent);
-        if (template == null)
+        if (template is null)
         {
             return await InitBuiltinRouting(config, blImportAdvancedRules); // fallback
         }
 
         var items = await AppManager.Instance.RoutingItems();
         var maxSort = items.Count;
-        if (!blImportAdvancedRules && items.Where(t => t.Remarks.StartsWith(template.Version)).ToList().Count > 0)
+        if (!blImportAdvancedRules && items.Where(t => t.Remarks.StartsWith(template.Version, StringComparison.OrdinalIgnoreCase)).ToList().Count > 0)
         {
             return 0;
         }
@@ -2088,20 +2048,20 @@ public static class ConfigHandler
 
         //TODO Temporary code to be removed later
         var lockItem = items?.FirstOrDefault(t => t.Locked == true);
-        if (lockItem != null)
+        if (lockItem is not null)
         {
             await ConfigHandler.RemoveRoutingItem(lockItem);
             items = await AppManager.Instance.RoutingItems();
         }
 
-        if (!blImportAdvancedRules && items.Count(u => u.Remarks.StartsWith(ver)) > 0)
+        if (!blImportAdvancedRules && items.Any(u => u.Remarks.StartsWith(ver, StringComparison.OrdinalIgnoreCase)))
         {
             //migrate
             //TODO Temporary code to be removed later
             if (config.RoutingBasicItem.RoutingIndexId.IsNotEmpty())
             {
                 var item = items.FirstOrDefault(t => t.Id == config.RoutingBasicItem.RoutingIndexId);
-                if (item != null)
+                if (item is not null)
                 {
                     await SetDefaultRouting(config, item);
                 }
@@ -2119,7 +2079,7 @@ public static class ConfigHandler
             Url = string.Empty,
             Sort = maxSort + 1,
         };
-        await AddBatchRoutingRules(item2, EmbedUtils.GetEmbedText(Global.CustomRoutingFileName + "white"));
+        await AddBatchRoutingRules(item2, EmbedUtils.GetEmbedText(AppConfig.CustomRoutingFileName + "white"));
 
         //Blacklist
         var item3 = new RoutingItem()
@@ -2128,7 +2088,7 @@ public static class ConfigHandler
             Url = string.Empty,
             Sort = maxSort + 2,
         };
-        await AddBatchRoutingRules(item3, EmbedUtils.GetEmbedText(Global.CustomRoutingFileName + "black"));
+        await AddBatchRoutingRules(item3, EmbedUtils.GetEmbedText(AppConfig.CustomRoutingFileName + "black"));
 
         //Global
         var item1 = new RoutingItem()
@@ -2137,7 +2097,7 @@ public static class ConfigHandler
             Url = string.Empty,
             Sort = maxSort + 3,
         };
-        await AddBatchRoutingRules(item1, EmbedUtils.GetEmbedText(Global.CustomRoutingFileName + "global"));
+        await AddBatchRoutingRules(item1, EmbedUtils.GetEmbedText(AppConfig.CustomRoutingFileName + "global"));
 
         if (!blImportAdvancedRules)
         {
@@ -2217,7 +2177,7 @@ public static class ConfigHandler
     /// <returns>0 if successful, -1 if failed</returns>
     public static async Task<int> SaveDNSItems(Config config, DNSItem item)
     {
-        if (item == null)
+        if (item is null)
         {
             return -1;
         }
@@ -2256,7 +2216,7 @@ public static class ConfigHandler
         }
 
         var template = JsonUtils.Deserialize<DNSItem>(templateContent);
-        if (template == null)
+        if (template is null)
         {
             return currentItem;
         }
@@ -2292,9 +2252,9 @@ public static class ConfigHandler
             FakeIP = false,
             GlobalFakeIp = true,
             BlockBindingQuery = true,
-            DirectDNS = Global.DomainDirectDNSAddress.FirstOrDefault(),
-            RemoteDNS = Global.DomainRemoteDNSAddress.FirstOrDefault(),
-            BootstrapDNS = Global.DomainPureIPDNSAddress.FirstOrDefault(),
+            DirectDNS = AppConfig.DomainDirectDNSAddress.FirstOrDefault(),
+            RemoteDNS = AppConfig.DomainRemoteDNSAddress.FirstOrDefault(),
+            BootstrapDNS = AppConfig.DomainPureIPDNSAddress.FirstOrDefault(),
         };
     }
 
@@ -2308,7 +2268,7 @@ public static class ConfigHandler
         }
 
         var template = JsonUtils.Deserialize<SimpleDNSItem>(templateContent);
-        if (template == null)
+        if (template is null)
         {
             return null;
         }
@@ -2345,7 +2305,7 @@ public static class ConfigHandler
 
     public static async Task<int> SaveFullConfigTemplate(Config config, FullConfigTemplateItem item)
     {
-        if (item == null)
+        if (item is null)
         {
             return -1;
         }
@@ -2392,15 +2352,15 @@ public static class ConfigHandler
                 break;
 
             case EPresetType.Russia:
-                config.ConstItem.GeoSourceUrl = Global.GeoFilesSources[1];
-                config.ConstItem.SrsSourceUrl = Global.SingboxRulesetSources[1];
-                config.ConstItem.RouteRulesTemplateSourceUrl = Global.RoutingRulesSources[1];
+                config.ConstItem.GeoSourceUrl = AppConfig.GeoFilesSources[1];
+                config.ConstItem.SrsSourceUrl = AppConfig.SingboxRulesetSources[1];
+                config.ConstItem.RouteRulesTemplateSourceUrl = AppConfig.RoutingRulesSources[1];
 
-                var xrayDnsRussia = await GetExternalDNSItem(ECoreType.Xray, Global.DNSTemplateSources[1] + "v2ray.json");
-                var singboxDnsRussia = await GetExternalDNSItem(ECoreType.sing_box, Global.DNSTemplateSources[1] + "sing_box.json");
-                var simpleDnsRussia = await GetExternalSimpleDNSItem(Global.DNSTemplateSources[1] + "simple_dns.json");
+                var xrayDnsRussia = await GetExternalDNSItem(ECoreType.Xray, AppConfig.DNSTemplateSources[1] + "v2ray.json");
+                var singboxDnsRussia = await GetExternalDNSItem(ECoreType.sing_box, AppConfig.DNSTemplateSources[1] + "sing_box.json");
+                var simpleDnsRussia = await GetExternalSimpleDNSItem(AppConfig.DNSTemplateSources[1] + "simple_dns.json");
 
-                if (simpleDnsRussia == null)
+                if (simpleDnsRussia is null)
                 {
                     xrayDnsRussia.Enabled = true;
                     singboxDnsRussia.Enabled = true;
@@ -2415,15 +2375,15 @@ public static class ConfigHandler
                 break;
 
             case EPresetType.Iran:
-                config.ConstItem.GeoSourceUrl = Global.GeoFilesSources[2];
-                config.ConstItem.SrsSourceUrl = Global.SingboxRulesetSources[2];
-                config.ConstItem.RouteRulesTemplateSourceUrl = Global.RoutingRulesSources[2];
+                config.ConstItem.GeoSourceUrl = AppConfig.GeoFilesSources[2];
+                config.ConstItem.SrsSourceUrl = AppConfig.SingboxRulesetSources[2];
+                config.ConstItem.RouteRulesTemplateSourceUrl = AppConfig.RoutingRulesSources[2];
 
-                var xrayDnsIran = await GetExternalDNSItem(ECoreType.Xray, Global.DNSTemplateSources[2] + "v2ray.json");
-                var singboxDnsIran = await GetExternalDNSItem(ECoreType.sing_box, Global.DNSTemplateSources[2] + "sing_box.json");
-                var simpleDnsIran = await GetExternalSimpleDNSItem(Global.DNSTemplateSources[2] + "simple_dns.json");
+                var xrayDnsIran = await GetExternalDNSItem(ECoreType.Xray, AppConfig.DNSTemplateSources[2] + "v2ray.json");
+                var singboxDnsIran = await GetExternalDNSItem(ECoreType.sing_box, AppConfig.DNSTemplateSources[2] + "sing_box.json");
+                var simpleDnsIran = await GetExternalSimpleDNSItem(AppConfig.DNSTemplateSources[2] + "simple_dns.json");
 
-                if (simpleDnsIran == null)
+                if (simpleDnsIran is null)
                 {
                     xrayDnsIran.Enabled = true;
                     singboxDnsIran.Enabled = true;
@@ -2448,7 +2408,7 @@ public static class ConfigHandler
     public static WindowSizeItem? GetWindowSizeItem(Config config, string typeName)
     {
         var sizeItem = config?.UiItem?.WindowSizeItem?.FirstOrDefault(t => t.TypeName == typeName);
-        if (sizeItem == null || sizeItem.Width <= 0 || sizeItem.Height <= 0)
+        if (sizeItem is null || sizeItem.Width <= 0 || sizeItem.Height <= 0)
         {
             return null;
         }
@@ -2459,7 +2419,7 @@ public static class ConfigHandler
     public static int SaveWindowSizeItem(Config config, string typeName, double width, double height)
     {
         var sizeItem = config?.UiItem?.WindowSizeItem?.FirstOrDefault(t => t.TypeName == typeName);
-        if (sizeItem == null)
+        if (sizeItem is null)
         {
             sizeItem = new WindowSizeItem { TypeName = typeName };
             config.UiItem.WindowSizeItem.Add(sizeItem);

v2rayN/ServiceLib/Handler/ConnectionHandler.cs

@@ -7,7 +7,7 @@ public static class ConnectionHandler
     public static async Task<string> RunAvailabilityCheck()
     {
         var time = await GetRealPingTimeInfo();
-        var ip = time > 0 ? await GetIPInfo() ?? Global.None : Global.None;
+        var ip = time > 0 ? await GetIPInfo() ?? AppConfig.None : AppConfig.None;
 
         return string.Format(ResUI.TestMeOutput, time, ip);
     }
@@ -22,13 +22,13 @@ public static class ConnectionHandler
 
         var downloadHandle = new DownloadService();
         var result = await downloadHandle.TryDownloadString(url, true, "");
-        if (result == null)
+        if (result is null)
         {
             return null;
         }
 
         var ipInfo = JsonUtils.Deserialize<IPAPIInfo>(result);
-        if (ipInfo == null)
+        if (ipInfo is null)
         {
             return null;
         }
@@ -45,7 +45,7 @@ public static class ConnectionHandler
         try
         {
             var port = AppManager.Instance.GetLocalPort(EInboundProtocol.socks);
-            var webProxy = new WebProxy($"socks5://{Global.Loopback}:{port}");
+            var webProxy = new WebProxy($"socks5://{AppConfig.Loopback}:{port}");
             var url = AppManager.Instance.Config.SpeedTestItem.SpeedPingTestUrl;
 
             for (var i = 0; i < 2; i++)
@@ -76,7 +76,7 @@ public static class ConnectionHandler
             using var client = new HttpClient(new SocketsHttpHandler()
             {
                 Proxy = webProxy,
-                UseProxy = webProxy != null
+                UseProxy = webProxy is not null
             });
 
             List<int> oneTime = new();

v2rayN/ServiceLib/Handler/CoreConfigHandler.cs

@@ -7,10 +7,13 @@ public static class CoreConfigHandler
 {
     private static readonly string _tag = "CoreConfigHandler";
 
+    private static readonly CompositeFormat _successfulConfigFormat =
+        CompositeFormat.Parse(ResUI.SuccessfulConfiguration);
+
     public static async Task<RetResult> GenerateClientConfig(ProfileItem node, string? fileName)
     {
         var config = AppManager.Instance.Config;
-        var result = new RetResult();
+        RetResult result;
 
         if (node.ConfigType == EConfigType.Custom)
         {
@@ -33,7 +36,7 @@ public static class CoreConfigHandler
         {
             return result;
         }
-        if (fileName.IsNotEmpty() && result.Data != null)
+        if (fileName.IsNotEmpty() && result.Data is not null)
         {
             await File.WriteAllTextAsync(fileName, result.Data.ToString());
         }
@@ -46,7 +49,7 @@ public static class CoreConfigHandler
         var ret = new RetResult();
         try
         {
-            if (node == null || fileName is null)
+            if (node is null || fileName is null)
             {
                 ret.Msg = ResUI.CheckServerSettings;
                 return ret;
@@ -78,7 +81,7 @@ public static class CoreConfigHandler
                 return ret;
             }
 
-            ret.Msg = string.Format(ResUI.SuccessfulConfiguration, "");
+            ret.Msg = string.Format(CultureInfo.CurrentCulture, _successfulConfigFormat, "");
             ret.Success = true;
             return await Task.FromResult(ret);
         }
@@ -111,7 +114,7 @@ public static class CoreConfigHandler
 
     public static async Task<RetResult> GenerateClientSpeedtestConfig(Config config, ProfileItem node, ServerTestItem testItem, string fileName)
     {
-        var result = new RetResult();
+        RetResult result;
         var initPort = AppManager.Instance.GetLocalPort(EInboundProtocol.speedtest);
         var port = Utils.GetFreePort(initPort + testItem.QueueNum);
         testItem.Port = port;

v2rayN/ServiceLib/Handler/Fmt/AnytlsFmt.cs

@@ -7,7 +7,7 @@ public class AnytlsFmt : BaseFmt
         msg = ResUI.ConfigurationFormatIncorrect;
 
         var parsedUrl = Utils.TryUri(str);
-        if (parsedUrl == null)
+        if (parsedUrl is null)
         {
             return null;
         }
@@ -30,7 +30,7 @@ public class AnytlsFmt : BaseFmt
 
     public static string? ToUri(ProfileItem? item)
     {
-        if (item == null)
+        if (item is null)
         {
             return null;
         }
@@ -41,7 +41,7 @@ public class AnytlsFmt : BaseFmt
         }
         var pw = item.Id;
         var dicQuery = new Dictionary<string, string>();
-        ToUriQuery(item, Global.None, ref dicQuery);
+        ToUriQuery(item, AppConfig.None, ref dicQuery);
 
         return ToUri(EConfigType.Anytls, item.Address, item.Port, pw, dicQuery, remark);
     }

v2rayN/ServiceLib/Handler/Fmt/BaseFmt.cs

@@ -32,7 +32,7 @@ public class BaseFmt
         }
         else
         {
-            if (securityDef != null)
+            if (securityDef is not null)
             {
                 dicQuery.Add("security", securityDef);
             }
@@ -62,7 +62,7 @@ public class BaseFmt
             dicQuery.Add("pqv", Utils.UrlEncode(item.Mldsa65Verify));
         }
 
-        if (item.StreamSecurity.Equals(Global.StreamSecurity))
+        if (item.StreamSecurity.Equals(AppConfig.StreamSecurity, StringComparison.OrdinalIgnoreCase))
         {
             if (item.Alpn.IsNotEmpty())
             {
@@ -84,7 +84,7 @@ public class BaseFmt
         switch (item.Network)
         {
             case nameof(ETransport.tcp):
-                dicQuery.Add("headerType", item.HeaderType.IsNotEmpty() ? item.HeaderType : Global.None);
+                dicQuery.Add("headerType", item.HeaderType.IsNotEmpty() ? item.HeaderType : AppConfig.None);
                 if (item.RequestHost.IsNotEmpty())
                 {
                     dicQuery.Add("host", Utils.UrlEncode(item.RequestHost));
@@ -92,7 +92,7 @@ public class BaseFmt
                 break;
 
             case nameof(ETransport.kcp):
-                dicQuery.Add("headerType", item.HeaderType.IsNotEmpty() ? item.HeaderType : Global.None);
+                dicQuery.Add("headerType", item.HeaderType.IsNotEmpty() ? item.HeaderType : AppConfig.None);
                 if (item.Path.IsNotEmpty())
                 {
                     dicQuery.Add("seed", Utils.UrlEncode(item.Path));
@@ -120,14 +120,14 @@ public class BaseFmt
                 {
                     dicQuery.Add("path", Utils.UrlEncode(item.Path));
                 }
-                if (item.HeaderType.IsNotEmpty() && Global.XhttpMode.Contains(item.HeaderType))
+                if (item.HeaderType.IsNotEmpty() && AppConfig.XhttpMode.Contains(item.HeaderType))
                 {
                     dicQuery.Add("mode", Utils.UrlEncode(item.HeaderType));
                 }
                 if (item.Extra.IsNotEmpty())
                 {
                     var node = JsonUtils.ParseJson(item.Extra);
-                    var extra = node != null
+                    var extra = node is not null
                         ? JsonUtils.Serialize(node, new JsonSerializerOptions
                         {
                             WriteIndented = false,
@@ -153,7 +153,7 @@ public class BaseFmt
                 break;
 
             case nameof(ETransport.quic):
-                dicQuery.Add("headerType", item.HeaderType.IsNotEmpty() ? item.HeaderType : Global.None);
+                dicQuery.Add("headerType", item.HeaderType.IsNotEmpty() ? item.HeaderType : AppConfig.None);
                 dicQuery.Add("quicSecurity", Utils.UrlEncode(item.RequestHost));
                 dicQuery.Add("key", Utils.UrlEncode(item.Path));
                 break;
@@ -163,7 +163,7 @@ public class BaseFmt
                 {
                     dicQuery.Add("authority", Utils.UrlEncode(item.RequestHost));
                     dicQuery.Add("serviceName", Utils.UrlEncode(item.Path));
-                    if (item.HeaderType is Global.GrpcGunMode or Global.GrpcMultiMode)
+                    if (item.HeaderType is AppConfig.GrpcGunMode or AppConfig.GrpcMultiMode)
                     {
                         dicQuery.Add("mode", Utils.UrlEncode(item.HeaderType));
                     }
@@ -191,7 +191,7 @@ public class BaseFmt
 
     private static int ToUriQueryAllowInsecure(ProfileItem item, ref Dictionary<string, string> dicQuery)
     {
-        if (item.AllowInsecure.Equals(Global.AllowInsecure.First()))
+        if (item.AllowInsecure.Equals(AppConfig.AllowInsecure.First(), StringComparison.OrdinalIgnoreCase))
         {
             // Add two for compatibility
             dicQuery.Add("insecure", "1");
@@ -222,11 +222,11 @@ public class BaseFmt
 
         if (_allowInsecureArray.Any(k => GetQueryDecoded(query, k) == "1"))
         {
-            item.AllowInsecure = Global.AllowInsecure.First();
+            item.AllowInsecure = AppConfig.AllowInsecure.First();
         }
         else if (_allowInsecureArray.Any(k => GetQueryDecoded(query, k) == "0"))
         {
-            item.AllowInsecure = Global.AllowInsecure.Skip(1).First();
+            item.AllowInsecure = AppConfig.AllowInsecure.Skip(1).First();
         }
         else
         {
@@ -237,12 +237,12 @@ public class BaseFmt
         switch (item.Network)
         {
             case nameof(ETransport.tcp):
-                item.HeaderType = GetQueryValue(query, "headerType", Global.None);
+                item.HeaderType = GetQueryValue(query, "headerType", AppConfig.None);
                 item.RequestHost = GetQueryDecoded(query, "host");
                 break;
 
             case nameof(ETransport.kcp):
-                item.HeaderType = GetQueryValue(query, "headerType", Global.None);
+                item.HeaderType = GetQueryValue(query, "headerType", AppConfig.None);
                 item.Path = GetQueryDecoded(query, "seed");
                 break;
 
@@ -260,7 +260,7 @@ public class BaseFmt
                 if (extraDecoded.IsNotEmpty())
                 {
                     var node = JsonUtils.ParseJson(extraDecoded);
-                    if (node != null)
+                    if (node is not null)
                     {
                         extraDecoded = JsonUtils.Serialize(node, new JsonSerializerOptions
                         {
@@ -281,15 +281,15 @@ public class BaseFmt
                 break;
 
             case nameof(ETransport.quic):
-                item.HeaderType = GetQueryValue(query, "headerType", Global.None);
-                item.RequestHost = GetQueryValue(query, "quicSecurity", Global.None);
+                item.HeaderType = GetQueryValue(query, "headerType", AppConfig.None);
+                item.RequestHost = GetQueryValue(query, "quicSecurity", AppConfig.None);
                 item.Path = GetQueryDecoded(query, "key");
                 break;
 
             case nameof(ETransport.grpc):
                 item.RequestHost = GetQueryDecoded(query, "authority");
                 item.Path = GetQueryDecoded(query, "serviceName");
-                item.HeaderType = GetQueryDecoded(query, "mode", Global.GrpcGunMode);
+                item.HeaderType = GetQueryDecoded(query, "mode", AppConfig.GrpcGunMode);
                 break;
 
             default:
@@ -300,7 +300,7 @@ public class BaseFmt
 
     protected static bool Contains(string str, params string[] s)
     {
-        return s.All(item => str.Contains(item, StringComparison.OrdinalIgnoreCase));
+        return s.All(item => str.Contains(item, StringComparison.Ordinal));
     }
 
     protected static string WriteAllText(string strData, string ext = "json")
@@ -312,12 +312,12 @@ public class BaseFmt
 
     protected static string ToUri(EConfigType eConfigType, string address, object port, string userInfo, Dictionary<string, string>? dicQuery, string? remark)
     {
-        var query = dicQuery != null
+        var query = dicQuery is not null
             ? ("?" + string.Join("&", dicQuery.Select(x => x.Key + "=" + x.Value).ToArray()))
             : string.Empty;
 
         var url = $"{Utils.UrlEncode(userInfo)}@{GetIpv6(address)}:{port}";
-        return $"{Global.ProtocolShares[eConfigType]}{url}{query}{remark}";
+        return $"{AppConfig.ProtocolShares[eConfigType]}{url}{query}{remark}";
     }
 
     protected static string GetQueryValue(NameValueCollection query, string key, string defaultValue = "")

v2rayN/ServiceLib/Handler/Fmt/FmtHandler.cs

@@ -33,58 +33,29 @@ public class FmtHandler
 
     public static ProfileItem? ResolveConfig(string config, out string msg)
     {
-        msg = ResUI.ConfigurationFormatIncorrect;
+        var span = config.AsSpan().Trim();
+        if (span.IsEmpty)
+        {
+            msg = ResUI.FailedReadConfiguration;
+            return null;
+        }
 
         try
         {
-            var str = config.TrimEx();
-            if (str.IsNullOrEmpty())
+            return span switch
             {
-                msg = ResUI.FailedReadConfiguration;
-                return null;
-            }
-
-            if (str.StartsWith(Global.ProtocolShares[EConfigType.VMess]))
-            {
-                return VmessFmt.Resolve(str, out msg);
-            }
-            else if (str.StartsWith(Global.ProtocolShares[EConfigType.Shadowsocks]))
-            {
-                return ShadowsocksFmt.Resolve(str, out msg);
-            }
-            else if (str.StartsWith(Global.ProtocolShares[EConfigType.SOCKS]))
-            {
-                return SocksFmt.Resolve(str, out msg);
-            }
-            else if (str.StartsWith(Global.ProtocolShares[EConfigType.Trojan]))
-            {
-                return TrojanFmt.Resolve(str, out msg);
-            }
-            else if (str.StartsWith(Global.ProtocolShares[EConfigType.VLESS]))
-            {
-                return VLESSFmt.Resolve(str, out msg);
-            }
-            else if (str.StartsWith(Global.ProtocolShares[EConfigType.Hysteria2]) || str.StartsWith(Global.Hysteria2ProtocolShare))
-            {
-                return Hysteria2Fmt.Resolve(str, out msg);
-            }
-            else if (str.StartsWith(Global.ProtocolShares[EConfigType.TUIC]))
-            {
-                return TuicFmt.Resolve(str, out msg);
-            }
-            else if (str.StartsWith(Global.ProtocolShares[EConfigType.WireGuard]))
-            {
-                return WireguardFmt.Resolve(str, out msg);
-            }
-            else if (str.StartsWith(Global.ProtocolShares[EConfigType.Anytls]))
-            {
-                return AnytlsFmt.Resolve(str, out msg);
-            }
-            else
-            {
-                msg = ResUI.NonvmessOrssProtocol;
-                return null;
-            }
+                _ when IsProtocol(span, EConfigType.VMess) => VmessFmt.Resolve(config, out msg),
+                _ when IsProtocol(span, EConfigType.Shadowsocks) => ShadowsocksFmt.Resolve(config, out msg),
+                _ when IsProtocol(span, EConfigType.SOCKS) => SocksFmt.Resolve(config, out msg),
+                _ when IsProtocol(span, EConfigType.Trojan) => TrojanFmt.Resolve(config, out msg),
+                _ when IsProtocol(span, EConfigType.VLESS) => VLESSFmt.Resolve(config, out msg),
+                _ when IsProtocol(span, EConfigType.Hysteria2) || span.StartsWith(AppConfig.Hysteria2ProtocolShare,
+                    StringComparison.OrdinalIgnoreCase) => Hysteria2Fmt.Resolve(config, out msg),
+                _ when IsProtocol(span, EConfigType.TUIC) => TuicFmt.Resolve(config, out msg),
+                _ when IsProtocol(span, EConfigType.WireGuard) => WireguardFmt.Resolve(config, out msg),
+                _ when IsProtocol(span, EConfigType.Anytls) => AnytlsFmt.Resolve(config, out msg),
+                _ => HandleUnknown(out msg)
+            };
         }
         catch (Exception ex)
         {
@@ -93,4 +64,16 @@ public class FmtHandler
             return null;
         }
     }
+
+    private static bool IsProtocol(ReadOnlySpan<char> strSpan, EConfigType type)
+    {
+        var prefix = AppConfig.ProtocolShares[type].AsSpan();
+        return strSpan.StartsWith(prefix, StringComparison.OrdinalIgnoreCase);
+    }
+
+    private static ProfileItem? HandleUnknown(out string msg)
+    {
+        msg = ResUI.NonvmessOrssProtocol;
+        return null;
+    }
 }

v2rayN/ServiceLib/Handler/Fmt/Hysteria2Fmt.cs

@@ -11,7 +11,7 @@ public class Hysteria2Fmt : BaseFmt
         };
 
         var url = Utils.TryUri(str);
-        if (url == null)
+        if (url is null)
         {
             return null;
         }
@@ -35,13 +35,11 @@ public class Hysteria2Fmt : BaseFmt
 
     public static string? ToUri(ProfileItem? item)
     {
-        if (item == null)
+        if (item is null)
         {
             return null;
         }
 
-        var url = string.Empty;
-
         var remark = string.Empty;
         if (item.Remarks.IsNotEmpty())
         {

v2rayN/ServiceLib/Handler/Fmt/ShadowsocksFmt.cs

@@ -8,7 +8,7 @@ public class ShadowsocksFmt : BaseFmt
         ProfileItem? item;
 
         item = ResolveSSLegacy(str) ?? ResolveSip002(str);
-        if (item == null)
+        if (item is null)
         {
             return null;
         }
@@ -24,7 +24,7 @@ public class ShadowsocksFmt : BaseFmt
 
     public static string? ToUri(ProfileItem? item)
     {
-        if (item == null)
+        if (item is null)
         {
             return null;
         }
@@ -46,7 +46,7 @@ public class ShadowsocksFmt : BaseFmt
         var plugin = string.Empty;
         var pluginArgs = string.Empty;
 
-        if (item.Network == nameof(ETransport.tcp) && item.HeaderType == Global.TcpHeaderHttp)
+        if (item.Network == nameof(ETransport.tcp) && item.HeaderType == AppConfig.TcpHeaderHttp)
         {
             plugin = "obfs-local";
             pluginArgs = $"obfs=http;obfs-host={item.RequestHost};";
@@ -66,7 +66,7 @@ public class ShadowsocksFmt : BaseFmt
             {
                 pluginArgs += "mode=quic;";
             }
-            if (item.StreamSecurity == Global.StreamSecurity)
+            if (item.StreamSecurity == AppConfig.StreamSecurity)
             {
                 pluginArgs += "tls;";
                 var certs = CertPemManager.ParsePemChain(item.Cert);
@@ -146,7 +146,7 @@ public class ShadowsocksFmt : BaseFmt
     private static ProfileItem? ResolveSip002(string result)
     {
         var parsedUrl = Utils.TryUri(result);
-        if (parsedUrl == null)
+        if (parsedUrl is null)
         {
             return null;
         }
@@ -183,7 +183,7 @@ public class ShadowsocksFmt : BaseFmt
         }
 
         var queryParameters = Utils.ParseQueryString(parsedUrl.Query);
-        if (queryParameters["plugin"] != null)
+        if (queryParameters["plugin"] is not null)
         {
             var pluginStr = queryParameters["plugin"];
             var pluginParts = pluginStr.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
@@ -211,8 +211,8 @@ public class ShadowsocksFmt : BaseFmt
                 if ((!obfsMode.IsNullOrEmpty()) && obfsMode.Contains("obfs=http") && obfsHost.IsNotEmpty())
                 {
                     obfsHost = obfsHost.Replace("obfs-host=", "");
-                    item.Network = Global.DefaultNetwork;
-                    item.HeaderType = Global.TcpHeaderHttp;
+                    item.Network = AppConfig.DefaultNetwork;
+                    item.HeaderType = AppConfig.TcpHeaderHttp;
                     item.RequestHost = obfsHost;
                 }
             }
@@ -249,7 +249,7 @@ public class ShadowsocksFmt : BaseFmt
 
                 if (hasTls)
                 {
-                    item.StreamSecurity = Global.StreamSecurity;
+                    item.StreamSecurity = AppConfig.StreamSecurity;
 
                     if (!certRaw.IsNullOrEmpty())
                     {

v2rayN/ServiceLib/Handler/Fmt/SingboxFmt.cs

@@ -15,7 +15,7 @@ public class SingboxFmt : BaseFmt
         {
             var objectString = JsonUtils.Serialize(configObject);
             var profileIt = ResolveFull(objectString, subRemarks);
-            if (profileIt != null)
+            if (profileIt is not null)
             {
                 lstResult.Add(profileIt);
             }
@@ -26,10 +26,10 @@ public class SingboxFmt : BaseFmt
     public static ProfileItem? ResolveFull(string strData, string? subRemarks)
     {
         var config = JsonUtils.ParseJson(strData);
-        if (config?["inbounds"] == null
-            || config["outbounds"] == null
-            || config["route"] == null
-            || config["dns"] == null)
+        if (config?["inbounds"] is null
+            || config["outbounds"] is null
+            || config["route"] is null
+            || config["dns"] is null)
         {
             return null;
         }

v2rayN/ServiceLib/Handler/Fmt/SocksFmt.cs

@@ -7,7 +7,7 @@ public class SocksFmt : BaseFmt
         msg = ResUI.ConfigurationFormatIncorrect;
 
         var item = ResolveSocksNew(str) ?? ResolveSocks(str);
-        if (item == null)
+        if (item is null)
         {
             return null;
         }
@@ -23,7 +23,7 @@ public class SocksFmt : BaseFmt
 
     public static string? ToUri(ProfileItem? item)
     {
-        if (item == null)
+        if (item is null)
         {
             return null;
         }
@@ -43,7 +43,7 @@ public class SocksFmt : BaseFmt
         {
             ConfigType = EConfigType.SOCKS
         };
-        result = result[Global.ProtocolShares[EConfigType.SOCKS].Length..];
+        result = result[AppConfig.ProtocolShares[EConfigType.SOCKS].Length..];
         //remark
         var indexRemark = result.IndexOf('#');
         if (indexRemark > 0)
@@ -87,7 +87,7 @@ public class SocksFmt : BaseFmt
     private static ProfileItem? ResolveSocksNew(string result)
     {
         var parsedUrl = Utils.TryUri(result);
-        if (parsedUrl == null)
+        if (parsedUrl is null)
         {
             return null;
         }

v2rayN/ServiceLib/Handler/Fmt/TrojanFmt.cs

@@ -12,7 +12,7 @@ public class TrojanFmt : BaseFmt
         };
 
         var url = Utils.TryUri(str);
-        if (url == null)
+        if (url is null)
         {
             return null;
         }
@@ -30,7 +30,7 @@ public class TrojanFmt : BaseFmt
 
     public static string? ToUri(ProfileItem? item)
     {
-        if (item == null)
+        if (item is null)
         {
             return null;
         }

v2rayN/ServiceLib/Handler/Fmt/TuicFmt.cs

@@ -12,7 +12,7 @@ public class TuicFmt : BaseFmt
         };
 
         var url = Utils.TryUri(str);
-        if (url == null)
+        if (url is null)
         {
             return null;
         }
@@ -21,7 +21,7 @@ public class TuicFmt : BaseFmt
         item.Port = url.Port;
         item.Remarks = url.GetComponents(UriComponents.Fragment, UriFormat.Unescaped);
         var rawUserInfo = Utils.UrlDecode(url.UserInfo);
-        var userInfoParts = rawUserInfo.Split(new[] { ':' }, 2);
+        var userInfoParts = rawUserInfo.Split(':', 2);
         if (userInfoParts.Length == 2)
         {
             item.Id = userInfoParts.First();
@@ -37,7 +37,7 @@ public class TuicFmt : BaseFmt
 
     public static string? ToUri(ProfileItem? item)
     {
-        if (item == null)
+        if (item is null)
         {
             return null;
         }

v2rayN/ServiceLib/Handler/Fmt/V2rayFmt.cs

@@ -15,7 +15,7 @@ public class V2rayFmt : BaseFmt
         {
             var objectString = JsonUtils.Serialize(configObject);
             var profileIt = ResolveFull(objectString, subRemarks);
-            if (profileIt != null)
+            if (profileIt is not null)
             {
                 lstResult.Add(profileIt);
             }
@@ -27,9 +27,9 @@ public class V2rayFmt : BaseFmt
     public static ProfileItem? ResolveFull(string strData, string? subRemarks)
     {
         var config = JsonUtils.ParseJson(strData);
-        if (config?["inbounds"] == null
-            || config["outbounds"] == null
-            || config["routing"] == null)
+        if (config?["inbounds"] is null
+            || config["outbounds"] is null
+            || config["routing"] is null)
         {
             return null;
         }

v2rayN/ServiceLib/Handler/Fmt/VLESSFmt.cs

@@ -9,11 +9,11 @@ public class VLESSFmt : BaseFmt
         ProfileItem item = new()
         {
             ConfigType = EConfigType.VLESS,
-            Security = Global.None
+            Security = AppConfig.None
         };
 
         var url = Utils.TryUri(str);
-        if (url == null)
+        if (url is null)
         {
             return null;
         }
@@ -24,7 +24,7 @@ public class VLESSFmt : BaseFmt
         item.Id = Utils.UrlDecode(url.UserInfo);
 
         var query = Utils.ParseQueryString(url.Query);
-        item.Security = GetQueryValue(query, "encryption", Global.None);
+        item.Security = GetQueryValue(query, "encryption", AppConfig.None);
         item.StreamSecurity = GetQueryValue(query, "security");
         ResolveUriQuery(query, ref item);
 
@@ -33,7 +33,7 @@ public class VLESSFmt : BaseFmt
 
     public static string? ToUri(ProfileItem? item)
     {
-        if (item == null)
+        if (item is null)
         {
             return null;
         }
@@ -50,9 +50,9 @@ public class VLESSFmt : BaseFmt
         }
         else
         {
-            dicQuery.Add("encryption", Global.None);
+            dicQuery.Add("encryption", AppConfig.None);
         }
-        ToUriQuery(item, Global.None, ref dicQuery);
+        ToUriQuery(item, AppConfig.None, ref dicQuery);
 
         return ToUri(EConfigType.VLESS, item.Address, item.Port, item.Id, dicQuery, remark);
     }

v2rayN/ServiceLib/Handler/Fmt/VmessFmt.cs

@@ -19,14 +19,14 @@ public class VmessFmt : BaseFmt
 
     public static string? ToUri(ProfileItem? item)
     {
-        if (item == null)
+        if (item is null)
         {
             return null;
         }
         var vmessQRCode = new VmessQRCode
         {
             v = item.ConfigVersion,
-            ps = item.Remarks.TrimEx(),
+            ps = item.Remarks.TrimSafe(),
             add = item.Address,
             port = item.Port,
             id = item.Id,
@@ -40,12 +40,12 @@ public class VmessFmt : BaseFmt
             sni = item.Sni,
             alpn = item.Alpn,
             fp = item.Fingerprint,
-            insecure = item.AllowInsecure.Equals(Global.AllowInsecure.First()) ? "1" : "0"
+            insecure = item.AllowInsecure.Equals(AppConfig.AllowInsecure[0], StringComparison.OrdinalIgnoreCase) ? "1" : "0"
         };
 
         var url = JsonUtils.Serialize(vmessQRCode);
         url = Utils.Base64Encode(url);
-        url = $"{Global.ProtocolShares[EConfigType.VMess]}{url}";
+        url = $"{AppConfig.ProtocolShares[EConfigType.VMess]}{url}";
 
         return url;
     }
@@ -58,18 +58,18 @@ public class VmessFmt : BaseFmt
             ConfigType = EConfigType.VMess
         };
 
-        result = result[Global.ProtocolShares[EConfigType.VMess].Length..];
+        result = result[AppConfig.ProtocolShares[EConfigType.VMess].Length..];
         result = Utils.Base64Decode(result);
 
         var vmessQRCode = JsonUtils.Deserialize<VmessQRCode>(result);
-        if (vmessQRCode == null)
+        if (vmessQRCode is null)
         {
             msg = ResUI.FailedConversionConfiguration;
             return null;
         }
 
-        item.Network = Global.DefaultNetwork;
-        item.HeaderType = Global.None;
+        item.Network = AppConfig.DefaultNetwork;
+        item.HeaderType = AppConfig.None;
 
         item.ConfigVersion = vmessQRCode.v;
         item.Remarks = Utils.ToString(vmessQRCode.ps);
@@ -79,7 +79,7 @@ public class VmessFmt : BaseFmt
         item.AlterId = vmessQRCode.aid;
         item.Security = Utils.ToString(vmessQRCode.scy);
 
-        item.Security = vmessQRCode.scy.IsNotEmpty() ? vmessQRCode.scy : Global.DefaultSecurity;
+        item.Security = vmessQRCode.scy.IsNotEmpty() ? vmessQRCode.scy : AppConfig.DefaultSecurity;
         if (vmessQRCode.net.IsNotEmpty())
         {
             item.Network = vmessQRCode.net;
@@ -95,7 +95,7 @@ public class VmessFmt : BaseFmt
         item.Sni = Utils.ToString(vmessQRCode.sni);
         item.Alpn = Utils.ToString(vmessQRCode.alpn);
         item.Fingerprint = Utils.ToString(vmessQRCode.fp);
-        item.AllowInsecure = vmessQRCode.insecure == "1" ? Global.AllowInsecure.First() : string.Empty;
+        item.AllowInsecure = vmessQRCode.insecure == "1" ? AppConfig.AllowInsecure.First() : string.Empty;
 
         return item;
     }
@@ -109,7 +109,7 @@ public class VmessFmt : BaseFmt
         };
 
         var url = Utils.TryUri(str);
-        if (url == null)
+        if (url is null)
         {
             return null;
         }

v2rayN/ServiceLib/Handler/Fmt/WireguardFmt.cs

@@ -12,7 +12,7 @@ public class WireguardFmt : BaseFmt
         };
 
         var url = Utils.TryUri(str);
-        if (url == null)
+        if (url is null)
         {
             return null;
         }
@@ -34,7 +34,7 @@ public class WireguardFmt : BaseFmt
 
     public static string? ToUri(ProfileItem? item)
     {
-        if (item == null)
+        if (item is null)
         {
             return null;
         }

v2rayN/ServiceLib/Handler/SubscriptionHandler.cs

@@ -59,8 +59,8 @@ public static class SubscriptionHandler
 
     private static bool IsValidSubscription(SubItem item, string subId)
     {
-        var id = item.Id.TrimEx();
-        var url = item.Url.TrimEx();
+        var id = item.Id.TrimSafe();
+        var url = item.Url.TrimSafe();
 
         if (id.IsNullOrEmpty() || url.IsNullOrEmpty())
         {
@@ -72,7 +72,7 @@ public static class SubscriptionHandler
             return false;
         }
 
-        if (!url.StartsWith(Global.HttpsProtocol) && !url.StartsWith(Global.HttpProtocol))
+        if (!url.StartsWith(AppConfig.HttpsProtocol) && !url.StartsWith(AppConfig.HttpProtocol))
         {
             return false;
         }
@@ -109,7 +109,7 @@ public static class SubscriptionHandler
         var result = await DownloadMainSubscription(config, item, blProxy, downloadHandle);
 
         // Process additional subscription links (if any)
-        if (item.ConvertTarget.IsNullOrEmpty() && item.MoreUrl.TrimEx().IsNotEmpty())
+        if (item.ConvertTarget.IsNullOrEmpty() && item.MoreUrl.TrimSafe().IsNotEmpty())
         {
             result = await DownloadAdditionalSubscriptions(item, result, blProxy, downloadHandle);
         }
@@ -120,13 +120,13 @@ public static class SubscriptionHandler
     private static async Task<string> DownloadMainSubscription(Config config, SubItem item, bool blProxy, DownloadService downloadHandle)
     {
         // Prepare subscription URL and download directly
-        var url = Utils.GetPunycode(item.Url.TrimEx());
+        var url = Utils.GetPunycode(item.Url.TrimSafe());
 
         // If conversion is needed
         if (item.ConvertTarget.IsNotEmpty())
         {
             var subConvertUrl = config.ConstItem.SubConvertUrl.IsNullOrEmpty()
-                ? Global.SubConvertUrls.FirstOrDefault()
+                ? AppConfig.SubConvertUrls.FirstOrDefault()
                 : config.ConstItem.SubConvertUrl;
 
             url = string.Format(subConvertUrl!, Utils.UrlEncode(url));
@@ -138,7 +138,7 @@ public static class SubscriptionHandler
 
             if (!url.Contains("config="))
             {
-                url += string.Format("&config={0}", Global.SubConvertConfig.FirstOrDefault());
+                url += string.Format("&config={0}", AppConfig.SubConvertConfig.FirstOrDefault());
             }
         }
 
@@ -157,7 +157,7 @@ public static class SubscriptionHandler
         }
 
         // Process additional URL list
-        var lstUrl = item.MoreUrl.TrimEx().Split(",") ?? [];
+        var lstUrl = item.MoreUrl.TrimSafe().Split(",") ?? [];
         foreach (var it in lstUrl)
         {
             var url2 = Utils.GetPunycode(it);

v2rayN/ServiceLib/Handler/SysProxy/ProxySettingLinux.cs

@@ -2,7 +2,7 @@ namespace ServiceLib.Handler.SysProxy;
 
 public static class ProxySettingLinux
 {
-    private static readonly string _proxySetFileName = $"{Global.ProxySetLinuxShellFileName.Replace(Global.NamespaceSample, "")}.sh";
+    private static readonly string _proxySetFileName = $"{AppConfig.ProxySetLinuxShellFileName.Replace(AppConfig.NamespaceSample, "")}.sh";
 
     public static async Task SetProxy(string host, int port, string exceptions)
     {
@@ -21,7 +21,7 @@ public static class ProxySettingLinux
         var customSystemProxyScriptPath = AppManager.Instance.Config.SystemProxyItem?.CustomSystemProxyScriptPath;
         var fileName = (customSystemProxyScriptPath.IsNotEmpty() && File.Exists(customSystemProxyScriptPath))
             ? customSystemProxyScriptPath
-            : await FileUtils.CreateLinuxShellFile(_proxySetFileName, EmbedUtils.GetEmbedText(Global.ProxySetLinuxShellFileName), false);
+            : await FileUtils.CreateLinuxShellFile(_proxySetFileName, EmbedUtils.GetEmbedText(AppConfig.ProxySetLinuxShellFileName), false);
 
         // TODO: temporarily notify which script is being used
         NoticeManager.Instance.SendMessage(fileName);

v2rayN/ServiceLib/Handler/SysProxy/ProxySettingOSX.cs

@@ -2,7 +2,7 @@ namespace ServiceLib.Handler.SysProxy;
 
 public static class ProxySettingOSX
 {
-    private static readonly string _proxySetFileName = $"{Global.ProxySetOSXShellFileName.Replace(Global.NamespaceSample, "")}.sh";
+    private static readonly string _proxySetFileName = $"{AppConfig.ProxySetOSXShellFileName.Replace(AppConfig.NamespaceSample, "")}.sh";
 
     public static async Task SetProxy(string host, int port, string exceptions)
     {
@@ -26,7 +26,7 @@ public static class ProxySettingOSX
         var customSystemProxyScriptPath = AppManager.Instance.Config.SystemProxyItem?.CustomSystemProxyScriptPath;
         var fileName = (customSystemProxyScriptPath.IsNotEmpty() && File.Exists(customSystemProxyScriptPath))
             ? customSystemProxyScriptPath
-            : await FileUtils.CreateLinuxShellFile(_proxySetFileName, EmbedUtils.GetEmbedText(Global.ProxySetOSXShellFileName), false);
+            : await FileUtils.CreateLinuxShellFile(_proxySetFileName, EmbedUtils.GetEmbedText(AppConfig.ProxySetOSXShellFileName), false);
 
         // TODO: temporarily notify which script is being used
         NoticeManager.Instance.SendMessage(fileName);

v2rayN/ServiceLib/Handler/SysProxy/ProxySettingWindows.cs

@@ -2,7 +2,7 @@ using static ServiceLib.Handler.SysProxy.ProxySettingWindows.InternetConnectionO
 
 namespace ServiceLib.Handler.SysProxy;
 
-public static class ProxySettingWindows
+public static partial class ProxySettingWindows
 {
     private const string _regPath = @"Software\Microsoft\Windows\CurrentVersion\Internet Settings";
 
@@ -121,7 +121,7 @@ public static class ProxySettingWindows
 
         // default stuff
         list.dwSize = Marshal.SizeOf(list);
-        if (connectionName != null)
+        if (connectionName is not null)
         {
             list.szConnection = Marshal.StringToHGlobalAuto(connectionName); // !! remember to deallocate memory 3
         }
@@ -201,29 +201,29 @@ public static class ProxySettingWindows
     /// </summary>
     /// <returns>A list of RAS connection names. May be empty list if no dial up connection.</returns>
     /// <exception cref="ApplicationException">Error message with win32 error code</exception>
-    private static IEnumerable<string> EnumerateRasEntries()
+    private static List<string> EnumerateRasEntries()
     {
         var entries = 0;
         // attempt to query with 1 entry buffer
         var rasEntryNames = new RASENTRYNAME[1];
-        var bufferSize = Marshal.SizeOf(typeof(RASENTRYNAME));
-        rasEntryNames[0].dwSize = Marshal.SizeOf(typeof(RASENTRYNAME));
+        var bufferSize = Marshal.SizeOf<RASENTRYNAME>();
+        rasEntryNames[0].dwSize = Marshal.SizeOf<RASENTRYNAME>();
 
         var result = NativeMethods.RasEnumEntries(null, null, rasEntryNames, ref bufferSize, ref entries);
         // increase buffer if the buffer is not large enough
         if (result == (uint)ErrorCode.ERROR_BUFFER_TOO_SMALL)
         {
-            rasEntryNames = new RASENTRYNAME[bufferSize / Marshal.SizeOf(typeof(RASENTRYNAME))];
+            rasEntryNames = new RASENTRYNAME[bufferSize / Marshal.SizeOf<RASENTRYNAME>()];
             for (var i = 0; i < rasEntryNames.Length; i++)
             {
-                rasEntryNames[i].dwSize = Marshal.SizeOf(typeof(RASENTRYNAME));
+                rasEntryNames[i].dwSize = Marshal.SizeOf<RASENTRYNAME>();
             }
 
             result = NativeMethods.RasEnumEntries(null, null, rasEntryNames, ref bufferSize, ref entries);
         }
         if (result == 0)
         {
-            var entryNames = new List<string>();
+            var entryNames = new List<string>(entries);
             for (var i = 0; i < entries; i++)
             {
                 entryNames.Add(rasEntryNames[i].szEntryName);
@@ -231,7 +231,7 @@ public static class ProxySettingWindows
 
             return entryNames;
         }
-        throw new ApplicationException($"RasEnumEntries failed with error code: {result}");
+        throw new Win32Exception((int)result);
     }
 
     #region WinInet structures
@@ -340,11 +340,11 @@ public static class ProxySettingWindows
 
     #endregion WinInet enums
 
-    internal static class NativeMethods
+    internal static partial class NativeMethods
     {
-        [DllImport("WinInet.dll", SetLastError = true, CharSet = CharSet.Auto)]
+        [LibraryImport("WinInet.dll", EntryPoint = "InternetSetOptionW", SetLastError = true)]
         [return: MarshalAs(UnmanagedType.Bool)]
-        public static extern bool InternetSetOption(nint hInternet, InternetOption dwOption, nint lpBuffer, int dwBufferLength);
+        public static partial bool InternetSetOption(nint hInternet, InternetOption dwOption, nint lpBuffer, int dwBufferLength);
 
         [DllImport("Rasapi32.dll", CharSet = CharSet.Auto)]
         public static extern uint RasEnumEntries(

v2rayN/ServiceLib/Handler/SysProxy/SysProxyHandler.cs

@@ -30,11 +30,11 @@ public static class SysProxyHandler
                         break;
                     }
                 case ESysProxyType.ForcedChange when Utils.IsLinux():
-                    await ProxySettingLinux.SetProxy(Global.Loopback, port, exceptions);
+                    await ProxySettingLinux.SetProxy(AppConfig.Loopback, port, exceptions);
                     break;
 
                 case ESysProxyType.ForcedChange when Utils.IsMacOS():
-                    await ProxySettingOSX.SetProxy(Global.Loopback, port, exceptions);
+                    await ProxySettingOSX.SetProxy(AppConfig.Loopback, port, exceptions);
                     break;
 
                 case ESysProxyType.ForcedClear when Utils.IsWindows():
@@ -74,15 +74,14 @@ public static class SysProxyHandler
             strExceptions = $"<local>;{strExceptions}";
         }
 
-        strProxy = string.Empty;
         if (config.SystemProxyItem.SystemProxyAdvancedProtocol.IsNullOrEmpty())
         {
-            strProxy = $"{Global.Loopback}:{port}";
+            strProxy = $"{AppConfig.Loopback}:{port}";
         }
         else
         {
             strProxy = config.SystemProxyItem.SystemProxyAdvancedProtocol
-                .Replace("{ip}", Global.Loopback)
+                .Replace("{ip}", AppConfig.Loopback)
                 .Replace("{http_port}", port.ToString())
                 .Replace("{socks_port}", port.ToString());
         }
@@ -92,7 +91,7 @@ public static class SysProxyHandler
     {
         var portPac = AppManager.Instance.GetLocalPort(EInboundProtocol.pac);
         await PacManager.Instance.StartAsync(port, portPac);
-        var strProxy = $"{Global.HttpProtocol}{Global.Loopback}:{portPac}/pac?t={DateTime.Now.Ticks}";
+        var strProxy = $"{AppConfig.HttpProtocol}{AppConfig.Loopback}:{portPac}/pac?t={DateTime.Now.Ticks}";
         ProxySettingWindows.SetProxy(strProxy, "", 4);
     }
 }

v2rayN/ServiceLib/Helper/DownloaderHelper.cs

@@ -2,12 +2,9 @@ using Downloader;
 
 namespace ServiceLib.Helper;
 
-public class DownloaderHelper
+public static class DownloaderHelper
 {
-    private static readonly Lazy<DownloaderHelper> _instance = new(() => new());
-    public static DownloaderHelper Instance => _instance.Value;
-
-    public async Task<string?> DownloadStringAsync(IWebProxy? webProxy, string url, string? userAgent, int timeout)
+    public static async Task<string?> DownloadStringAsync(IWebProxy? webProxy, string url, string? userAgent, int timeout)
     {
         if (url.IsNullOrEmpty())
         {
@@ -38,7 +35,7 @@ public class DownloaderHelper
         await using var downloader = new Downloader.DownloadService(downloadOpt);
         downloader.DownloadFileCompleted += (sender, value) =>
         {
-            if (value.Error != null)
+            if (value.Error is not null)
             {
                 throw value.Error;
             }
@@ -53,7 +50,7 @@ public class DownloaderHelper
         return await reader.ReadToEndAsync(cts.Token);
     }
 
-    public async Task DownloadDataAsync4Speed(IWebProxy webProxy, string url, IProgress<string> progress, int timeout)
+    public static async Task DownloadDataAsync4Speed(IWebProxy webProxy, string url, IProgress<string> progress, int timeout)
     {
         if (url.IsNullOrEmpty())
         {
@@ -78,14 +75,14 @@ public class DownloaderHelper
 
         downloader.DownloadProgressChanged += (sender, value) =>
         {
-            if (progress != null && value.BytesPerSecondSpeed > 0)
+            if (progress is not null && value.BytesPerSecondSpeed > 0)
             {
                 hasValue = true;
                 if (value.BytesPerSecondSpeed > maxSpeed)
                 {
                     maxSpeed = value.BytesPerSecondSpeed;
                 }
-                
+
                 var ts = DateTime.Now - lastUpdateTime;
                 if (ts.TotalMilliseconds >= 1000)
                 {
@@ -97,14 +94,14 @@ public class DownloaderHelper
         };
         downloader.DownloadFileCompleted += (sender, value) =>
         {
-            if (progress != null)
+            if (progress is not null)
             {
                 if (hasValue && maxSpeed > 0)
                 {
                     var finalSpeed = (maxSpeed / 1000 / 1000).ToString("#0.0");
                     progress.Report(finalSpeed);
                 }
-                else if (value.Error != null)
+                else if (value.Error is not null)
                 {
                     progress.Report(value.Error?.Message);
                 }
@@ -122,7 +119,7 @@ public class DownloaderHelper
         downloadOpt = null;
     }
 
-    public async Task DownloadFileAsync(IWebProxy? webProxy, string url, string fileName, IProgress<double> progress, int timeout)
+    public static async Task DownloadFileAsync(IWebProxy? webProxy, string url, string fileName, IProgress<double> progress, int timeout)
     {
         if (url.IsNullOrEmpty())
         {
@@ -164,13 +161,13 @@ public class DownloaderHelper
         };
         downloader.DownloadFileCompleted += (sender, value) =>
         {
-            if (progress != null)
+            if (progress is not null)
             {
-                if (hasValue && value.Error == null)
+                if (hasValue && value.Error is null)
                 {
                     progress.Report(101);
                 }
-                else if (value.Error != null)
+                else if (value.Error is not null)
                 {
                     throw value.Error;
                 }

v2rayN/ServiceLib/Manager/ActionPrecheckManager.cs

@@ -107,12 +107,12 @@ public class ActionPrecheckManager
         if (coreType == ECoreType.sing_box)
         {
             var transportError = ValidateSingboxTransport(item.ConfigType, net);
-            if (transportError != null)
+            if (transportError is not null)
             {
                 errors.Add(transportError);
             }
 
-            if (!Global.SingboxSupportConfigType.Contains(item.ConfigType))
+            if (!AppConfig.SingboxSupportConfigType.Contains(item.ConfigType))
             {
                 errors.Add(string.Format(ResUI.CoreNotSupportProtocol,
                     nameof(ECoreType.sing_box), item.ConfigType.ToString()));
@@ -121,7 +121,7 @@ public class ActionPrecheckManager
         else if (coreType is ECoreType.Xray)
         {
             // Xray core does not support these protocols
-            if (!Global.XraySupportConfigType.Contains(item.ConfigType))
+            if (!AppConfig.XraySupportConfigType.Contains(item.ConfigType))
             {
                 errors.Add(string.Format(ResUI.CoreNotSupportProtocol,
                     nameof(ECoreType.Xray), item.ConfigType.ToString()));
@@ -144,7 +144,7 @@ public class ActionPrecheckManager
                     errors.Add(string.Format(ResUI.InvalidProperty, "Id"));
                 }
 
-                if (!Global.Flows.Contains(item.Flow))
+                if (!AppConfig.Flows.Contains(item.Flow))
                 {
                     errors.Add(string.Format(ResUI.InvalidProperty, "Flow"));
                 }
@@ -157,7 +157,7 @@ public class ActionPrecheckManager
                     errors.Add(string.Format(ResUI.InvalidProperty, "Id"));
                 }
 
-                if (string.IsNullOrEmpty(item.Security) || !Global.SsSecuritiesInSingbox.Contains(item.Security))
+                if (string.IsNullOrEmpty(item.Security) || !AppConfig.SsSecuritiesInSingbox.Contains(item.Security))
                 {
                     errors.Add(string.Format(ResUI.InvalidProperty, "Security"));
                 }
@@ -165,7 +165,7 @@ public class ActionPrecheckManager
                 break;
         }
 
-        if (item.StreamSecurity == Global.StreamSecurity)
+        if (item.StreamSecurity == AppConfig.StreamSecurity)
         {
             // check certificate validity
             if (!item.Cert.IsNullOrEmpty()
@@ -176,7 +176,7 @@ public class ActionPrecheckManager
             }
         }
 
-        if (item.StreamSecurity == Global.StreamSecurityReality)
+        if (item.StreamSecurity == AppConfig.StreamSecurityReality)
         {
             if (item.PublicKey.IsNullOrEmpty())
             {
@@ -330,7 +330,7 @@ public class ActionPrecheckManager
 
         var coreType = AppManager.Instance.GetCoreType(item, item.ConfigType);
         var routing = await ConfigHandler.GetDefaultRouting(AppManager.Instance.Config);
-        if (routing == null)
+        if (routing is null)
         {
             return errors;
         }
@@ -344,7 +344,7 @@ public class ActionPrecheckManager
             }
 
             var outboundTag = ruleItem.OutboundTag;
-            if (outboundTag.IsNullOrEmpty() || Global.OutboundTags.Contains(outboundTag))
+            if (outboundTag.IsNullOrEmpty() || AppConfig.OutboundTags.Contains(outboundTag))
             {
                 continue;
             }

v2rayN/ServiceLib/Manager/AppManager.cs

@@ -5,11 +5,10 @@ public sealed class AppManager
     #region Property
 
     private static readonly Lazy<AppManager> _instance = new(() => new());
-    private Config _config;
     private int? _statePort;
     private int? _statePort2;
     public static AppManager Instance => _instance.Value;
-    public Config Config => _config;
+    public Config Config { get; private set; }
 
     public int StatePort
     {
@@ -25,7 +24,7 @@ public sealed class AppManager
         get
         {
             _statePort2 ??= Utils.GetFreePort(GetLocalPort(EInboundProtocol.api2));
-            return _statePort2.Value + (_config.TunModeItem.EnableTun ? 1 : 0);
+            return _statePort2.Value + (Config.TunModeItem.EnableTun ? 1 : 0);
         }
     }
 
@@ -56,17 +55,17 @@ public sealed class AppManager
     {
         if (Utils.HasWritePermission() == false)
         {
-            Environment.SetEnvironmentVariable(Global.LocalAppData, "1", EnvironmentVariableTarget.Process);
+            Environment.SetEnvironmentVariable(AppConfig.LocalAppData, "1", EnvironmentVariableTarget.Process);
         }
 
         Logging.Setup();
         var config = ConfigHandler.LoadConfig();
-        if (config == null)
+        if (config is null)
         {
             return false;
         }
-        _config = config;
-        Thread.CurrentThread.CurrentUICulture = new(_config.UiItem.CurrentLanguage);
+        Config = config;
+        Thread.CurrentThread.CurrentUICulture = new(Config.UiItem.CurrentLanguage);
 
         //Under Win10
         if (Utils.IsWindows() && Environment.OSVersion.Version.Major < 10)
@@ -88,7 +87,7 @@ public sealed class AppManager
     public bool InitComponents()
     {
         Logging.SaveLog($"v2rayN start up | {Utils.GetRuntimeInfo()}");
-        Logging.LoggingEnabled(_config.GuiItem.EnableLog);
+        Logging.LoggingEnabled(Config.GuiItem.EnableLog);
 
         //First determine the port value
         _ = StatePort;
@@ -110,11 +109,11 @@ public sealed class AppManager
         {
             Logging.SaveLog("AppExitAsync Begin");
 
-            await SysProxyHandler.UpdateSysProxy(_config, true);
+            await SysProxyHandler.UpdateSysProxy(Config, true);
             AppEvents.AppExitRequested.Publish();
             await Task.Delay(50); //Wait for AppExitRequested to be processed
 
-            await ConfigHandler.SaveConfig(_config);
+            await ConfigHandler.SaveConfig(Config);
             await ProfileExManager.Instance.SaveTo();
             await StatisticsManager.Instance.SaveTo();
             await CoreManager.Instance.CoreStop();
@@ -149,7 +148,7 @@ public sealed class AppManager
 
     public int GetLocalPort(EInboundProtocol protocol)
     {
-        var localPort = _config.Inbound.FirstOrDefault(t => t.Protocol == nameof(EInboundProtocol.socks))?.LocalPort ?? 10808;
+        var localPort = Config.Inbound.FirstOrDefault(t => t.Protocol == nameof(EInboundProtocol.socks))?.LocalPort ?? 10808;
         return localPort + (int)protocol;
     }
 
@@ -274,25 +273,25 @@ public sealed class AppManager
         switch (coreType)
         {
             case ECoreType.v2fly:
-                return Global.SsSecurities;
+                return AppConfig.SsSecurities;
 
             case ECoreType.Xray:
-                return Global.SsSecuritiesInXray;
+                return AppConfig.SsSecuritiesInXray;
 
             case ECoreType.sing_box:
-                return Global.SsSecuritiesInSingbox;
+                return AppConfig.SsSecuritiesInSingbox;
         }
-        return Global.SsSecuritiesInSingbox;
+        return AppConfig.SsSecuritiesInSingbox;
     }
 
     public ECoreType GetCoreType(ProfileItem profileItem, EConfigType eConfigType)
     {
-        if (profileItem?.CoreType != null)
+        if (profileItem?.CoreType is not null)
         {
             return (ECoreType)profileItem.CoreType;
         }
 
-        var item = _config.CoreTypeItem?.FirstOrDefault(it => it.ConfigType == eConfigType);
+        var item = Config.CoreTypeItem?.FirstOrDefault(it => it.ConfigType == eConfigType);
         return item?.CoreType ?? ECoreType.Xray;
     }
 

v2rayN/ServiceLib/Manager/CertPemManager.cs

@@ -225,7 +225,7 @@ public class CertPemManager
             await ssl.AuthenticateAsClientAsync(sslOptions, cts.Token);
 
             var remote = ssl.RemoteCertificate;
-            if (remote == null)
+            if (remote is null)
             {
                 return (null, null);
             }
@@ -308,7 +308,7 @@ public class CertPemManager
         X509Chain? chain,
         SslPolicyErrors sslPolicyErrors)
     {
-        if (certificate == null)
+        if (certificate is null)
         {
             return false;
         }
@@ -409,7 +409,7 @@ public class CertPemManager
     /// <returns>Concatenated PEM certificates string</returns>
     public static string ConcatenatePemChain(IEnumerable<string> pemList)
     {
-        if (pemList == null)
+        if (pemList is null)
         {
             return string.Empty;
         }

v2rayN/ServiceLib/Manager/ClashApiManager.cs

@@ -23,7 +23,7 @@ public sealed class ClashApiManager
             var result2 = await HttpClientHelper.Instance.TryGetAsync(url2);
             var clashProviders = JsonUtils.Deserialize<ClashProviders>(result2);
 
-            if (clashProxies != null || clashProviders != null)
+            if (clashProxies is not null || clashProviders is not null)
             {
                 _proxies = clashProxies?.proxies;
                 return new Tuple<ClashProxies, ClashProviders>(clashProxies, clashProviders);
@@ -41,14 +41,14 @@ public sealed class ClashApiManager
         {
             if (blAll)
             {
-                if (_proxies == null)
+                if (_proxies is null)
                 {
                     await GetClashProxiesAsync();
                 }
                 lstProxy = new List<ClashProxyModel>();
                 foreach (var kv in _proxies ?? [])
                 {
-                    if (Global.notAllowTestType.Contains(kv.Value.type?.ToLower()))
+                    if (AppConfig.notAllowTestType.Contains(kv.Value.type?.ToLower()))
                     {
                         continue;
                     }
@@ -70,7 +70,7 @@ public sealed class ClashApiManager
             var tasks = new List<Task>();
             foreach (var it in lstProxy)
             {
-                if (Global.notAllowTestType.Contains(it.Type.ToLower()))
+                if (AppConfig.notAllowTestType.Contains(it.Type.ToLower()))
                 {
                     continue;
                 }
@@ -123,7 +123,7 @@ public sealed class ClashApiManager
 
     public async Task ClashConfigUpdate(Dictionary<string, string> headers)
     {
-        if (_proxies == null)
+        if (_proxies is null)
         {
             return;
         }
@@ -182,6 +182,6 @@ public sealed class ClashApiManager
 
     private string GetApiUrl()
     {
-        return $"{Global.HttpProtocol}{Global.Loopback}:{AppManager.Instance.StatePort2}";
+        return $"{AppConfig.HttpProtocol}{AppConfig.Loopback}:{AppManager.Instance.StatePort2}";
     }
 }

v2rayN/ServiceLib/Manager/CoreAdminManager.cs

@@ -14,7 +14,7 @@ public class CoreAdminManager
 
     public async Task Init(Config config, Func<bool, string, Task> updateFunc)
     {
-        if (_config != null)
+        if (_config is not null)
         {
             return;
         }
@@ -67,14 +67,14 @@ public class CoreAdminManager
 
         try
         {
-            var shellFileName = Utils.IsMacOS() ? Global.KillAsSudoOSXShellFileName : Global.KillAsSudoLinuxShellFileName;
+            var shellFileName = Utils.IsMacOS() ? AppConfig.KillAsSudoOSXShellFileName : AppConfig.KillAsSudoLinuxShellFileName;
             var shFilePath = await FileUtils.CreateLinuxShellFile("kill_as_sudo.sh", EmbedUtils.GetEmbedText(shellFileName), true);
             if (shFilePath.Contains(' '))
             {
                 shFilePath = shFilePath.AppendQuotes();
             }
             var arg = new List<string>() { "-c", $"sudo -S {shFilePath} {_linuxSudoPid}" };
-            var result = await Cli.Wrap(Global.LinuxBash)
+            var result = await Cli.Wrap(AppConfig.LinuxBash)
                 .WithArguments(arg)
                 .WithStandardInputPipe(PipeSource.FromString(AppManager.Instance.LinuxSudoPwd))
                 .ExecuteBufferedAsync();

v2rayN/ServiceLib/Manager/CoreInfoManager.cs

@@ -13,7 +13,7 @@ public sealed class CoreInfoManager
 
     public CoreInfo? GetCoreInfo(ECoreType coreType)
     {
-        if (_coreInfo == null)
+        if (_coreInfo is null)
         {
             InitCoreInfo();
         }
@@ -22,7 +22,7 @@ public sealed class CoreInfoManager
 
     public List<CoreInfo> GetCoreInfo()
     {
-        if (_coreInfo == null)
+        if (_coreInfo is null)
         {
             InitCoreInfo();
         }
@@ -63,7 +63,7 @@ public sealed class CoreInfoManager
                 {
                     CoreType = ECoreType.v2rayN,
                     Url = GetCoreUrl(ECoreType.v2rayN),
-                    ReleaseApiUrl = urlN.Replace(Global.GithubUrl, Global.GithubApiUrl),
+                    ReleaseApiUrl = urlN.Replace(AppConfig.GithubUrl, AppConfig.GithubApiUrl),
                     DownloadUrlWin64 = urlN + "/download/{0}/v2rayN-windows-64.zip",
                     DownloadUrlWinArm64 = urlN + "/download/{0}/v2rayN-windows-arm64.zip",
                     DownloadUrlLinux64 = urlN + "/download/{0}/v2rayN-linux-64.zip",
@@ -82,7 +82,7 @@ public sealed class CoreInfoManager
                     VersionArg = "-version",
                     Environment = new Dictionary<string, string?>()
                     {
-                        { Global.V2RayLocalAsset, Utils.GetBinPath("") },
+                        { AppConfig.V2RayLocalAsset, Utils.GetBinPath("") },
                     },
                 },
 
@@ -96,7 +96,7 @@ public sealed class CoreInfoManager
                     VersionArg = "version",
                     Environment = new Dictionary<string, string?>()
                     {
-                        { Global.V2RayLocalAsset, Utils.GetBinPath("") },
+                        { AppConfig.V2RayLocalAsset, Utils.GetBinPath("") },
                     },
                 },
 
@@ -106,7 +106,7 @@ public sealed class CoreInfoManager
                     CoreExes = ["xray"],
                     Arguments = "run -c {0}",
                     Url = GetCoreUrl(ECoreType.Xray),
-                    ReleaseApiUrl = urlXray.Replace(Global.GithubUrl, Global.GithubApiUrl),
+                    ReleaseApiUrl = urlXray.Replace(AppConfig.GithubUrl, AppConfig.GithubApiUrl),
                     DownloadUrlWin64 = urlXray + "/download/{0}/Xray-windows-64.zip",
                     DownloadUrlWinArm64 = urlXray + "/download/{0}/Xray-windows-arm64-v8a.zip",
                     DownloadUrlLinux64 = urlXray + "/download/{0}/Xray-linux-64.zip",
@@ -117,8 +117,8 @@ public sealed class CoreInfoManager
                     VersionArg = "-version",
                     Environment = new Dictionary<string, string?>()
                     {
-                        { Global.XrayLocalAsset, Utils.GetBinPath("") },
-                        { Global.XrayLocalCert, Utils.GetBinPath("") },
+                        { AppConfig.XrayLocalAsset, Utils.GetBinPath("") },
+                        { AppConfig.XrayLocalCert, Utils.GetBinPath("") },
                     },
                 },
 
@@ -128,7 +128,7 @@ public sealed class CoreInfoManager
                     CoreExes = GetMihomoCoreExes(),
                     Arguments = "-f {0}" + PortableMode(),
                     Url = GetCoreUrl(ECoreType.mihomo),
-                    ReleaseApiUrl = urlMihomo.Replace(Global.GithubUrl, Global.GithubApiUrl),
+                    ReleaseApiUrl = urlMihomo.Replace(AppConfig.GithubUrl, AppConfig.GithubApiUrl),
                     DownloadUrlWin64 = urlMihomo + "/download/{0}/mihomo-windows-amd64-v1-{0}.zip",
                     DownloadUrlWinArm64 = urlMihomo + "/download/{0}/mihomo-windows-arm64-{0}.zip",
                     DownloadUrlLinux64 = urlMihomo + "/download/{0}/mihomo-linux-amd64-v1-{0}.gz",
@@ -170,7 +170,7 @@ public sealed class CoreInfoManager
                     Arguments = "run -c {0} --disable-color",
                     Url = GetCoreUrl(ECoreType.sing_box),
 
-                    ReleaseApiUrl = urlSingbox.Replace(Global.GithubUrl, Global.GithubApiUrl),
+                    ReleaseApiUrl = urlSingbox.Replace(AppConfig.GithubUrl, AppConfig.GithubApiUrl),
                     DownloadUrlWin64 = urlSingbox + "/download/{0}/sing-box-{1}-windows-amd64.zip",
                     DownloadUrlWinArm64 = urlSingbox + "/download/{0}/sing-box-{1}-windows-arm64.zip",
                     DownloadUrlLinux64 = urlSingbox + "/download/{0}/sing-box-{1}-linux-amd64.tar.gz",
@@ -246,7 +246,7 @@ public sealed class CoreInfoManager
 
     private static string GetCoreUrl(ECoreType eCoreType)
     {
-        return $"{Global.GithubUrl}/{Global.CoreUrls[eCoreType]}/releases";
+        return $"{AppConfig.GithubUrl}/{AppConfig.CoreUrls[eCoreType]}/releases";
     }
 
     private static List<string>? GetMihomoCoreExes()

v2rayN/ServiceLib/Manager/CoreManager.cs

@@ -11,7 +11,7 @@ public class CoreManager
     private WindowsJobService? _processJob;
     private ProcessService? _processService;
     private ProcessService? _processPreService;
-    private bool _linuxSudo = false;
+    private bool _linuxSudo;
     private Func<bool, string, Task>? _updateFunc;
     private const string _tag = "CoreHandler";
 
@@ -21,7 +21,7 @@ public class CoreManager
         _updateFunc = updateFunc;
 
         //Copy the bin folder to the storage location (for init)
-        if (Environment.GetEnvironmentVariable(Global.LocalAppData) == "1")
+        if (Environment.GetEnvironmentVariable(AppConfig.LocalAppData) == "1")
         {
             var fromPath = Utils.GetBaseDirectory("bin");
             var toPath = Utils.GetBinPath("");
@@ -59,13 +59,13 @@ public class CoreManager
 
     public async Task LoadCore(ProfileItem? node)
     {
-        if (node == null)
+        if (node is null)
         {
             await UpdateFunc(false, ResUI.CheckServerSettings);
             return;
         }
 
-        var fileName = Utils.GetBinConfigPath(Global.CoreConfigFileName);
+        var fileName = Utils.GetBinConfigPath(AppConfig.CoreConfigFileName);
         var result = await CoreConfigHandler.GenerateClientConfig(node, fileName);
         if (result.Success != true)
         {
@@ -87,7 +87,7 @@ public class CoreManager
 
         await CoreStart(node);
         await CoreStartPreService(node);
-        if (_processService != null)
+        if (_processService is not null)
         {
             await UpdateFunc(true, $"{node.GetSummary()}");
         }
@@ -95,8 +95,8 @@ public class CoreManager
 
     public async Task<ProcessService?> LoadCoreConfigSpeedtest(List<ServerTestItem> selecteds)
     {
-        var coreType = selecteds.Any(t => Global.SingboxOnlyConfigType.Contains(t.ConfigType)) ? ECoreType.sing_box : ECoreType.Xray;
-        var fileName = string.Format(Global.CoreSpeedtestConfigFileName, Utils.GetGuid(false));
+        var coreType = selecteds.Any(t => AppConfig.SingboxOnlyConfigType.Contains(t.ConfigType)) ? ECoreType.sing_box : ECoreType.Xray;
+        var fileName = string.Format(AppConfig.CoreSpeedtestConfigFileName, Utils.GetGuid(false));
         var configPath = Utils.GetBinConfigPath(fileName);
         var result = await CoreConfigHandler.GenerateClientSpeedtestConfig(_config, configPath, selecteds, coreType);
         await UpdateFunc(false, result.Msg);
@@ -120,7 +120,7 @@ public class CoreManager
             return null;
         }
 
-        var fileName = string.Format(Global.CoreSpeedtestConfigFileName, Utils.GetGuid(false));
+        var fileName = string.Format(AppConfig.CoreSpeedtestConfigFileName, Utils.GetGuid(false));
         var configPath = Utils.GetBinConfigPath(fileName);
         var result = await CoreConfigHandler.GenerateClientSpeedtestConfig(_config, node, testItem, configPath);
         if (result.Success != true)
@@ -143,14 +143,14 @@ public class CoreManager
                 _linuxSudo = false;
             }
 
-            if (_processService != null)
+            if (_processService is not null)
             {
                 await _processService.StopAsync();
                 _processService.Dispose();
                 _processService = null;
             }
 
-            if (_processPreService != null)
+            if (_processPreService is not null)
             {
                 await _processPreService.StopAsync();
                 _processPreService.Dispose();
@@ -171,7 +171,7 @@ public class CoreManager
         var coreInfo = CoreInfoManager.Instance.GetCoreInfo(coreType);
 
         var displayLog = node.ConfigType != EConfigType.Custom || node.DisplayLog;
-        var proc = await RunProcess(coreInfo, Global.CoreConfigFileName, displayLog, true);
+        var proc = await RunProcess(coreInfo, AppConfig.CoreConfigFileName, displayLog, true);
         if (proc is null)
         {
             return;
@@ -181,19 +181,19 @@ public class CoreManager
 
     private async Task CoreStartPreService(ProfileItem node)
     {
-        if (_processService != null && !_processService.HasExited)
+        if (_processService is not null && !_processService.HasExited)
         {
             var coreType = AppManager.Instance.GetCoreType(node, node.ConfigType);
             var itemSocks = await ConfigHandler.GetPreSocksItem(_config, node, coreType);
-            if (itemSocks != null)
+            if (itemSocks is not null)
             {
                 var preCoreType = itemSocks.CoreType ?? ECoreType.sing_box;
-                var fileName = Utils.GetBinConfigPath(Global.CorePreConfigFileName);
+                var fileName = Utils.GetBinConfigPath(AppConfig.CorePreConfigFileName);
                 var result = await CoreConfigHandler.GenerateClientConfig(itemSocks, fileName);
                 if (result.Success)
                 {
                     var coreInfo = CoreInfoManager.Instance.GetCoreInfo(preCoreType);
-                    var proc = await RunProcess(coreInfo, Global.CorePreConfigFileName, true, true);
+                    var proc = await RunProcess(coreInfo, AppConfig.CorePreConfigFileName, true, true);
                     if (proc is null)
                     {
                         return;

v2rayN/ServiceLib/Manager/PacManager.cs

@@ -40,7 +40,7 @@ public class PacManager
 
         if (!File.Exists(fileName))
         {
-            var pac = EmbedUtils.GetEmbedText(Global.PacFileName);
+            var pac = EmbedUtils.GetEmbedText(AppConfig.PacFileName);
             await File.AppendAllTextAsync(fileName, pac);
         }
 
@@ -94,7 +94,7 @@ public class PacManager
 
     public void Stop()
     {
-        if (_tcpListener == null)
+        if (_tcpListener is null)
         {
             return;
         }

v2rayN/ServiceLib/Manager/ProfileExManager.cs

@@ -161,7 +161,7 @@ public class ProfileExManager
     public int GetSort(string indexId)
     {
         var profileEx = _lstProfileEx.FirstOrDefault(t => t.IndexId == indexId);
-        if (profileEx == null)
+        if (profileEx is null)
         {
             return 0;
         }
@@ -174,6 +174,6 @@ public class ProfileExManager
         {
             return 0;
         }
-        return _lstProfileEx.Max(t => t == null ? 0 : t.Sort);
+        return _lstProfileEx.Max(t => t is null ? 0 : t.Sort);
     }
 }

v2rayN/ServiceLib/Manager/ProfileGroupItemManager.cs

@@ -148,7 +148,7 @@ public class ProfileGroupItemManager
         try
         {
             var lst = await SQLiteHelper.Instance.TableAsync<ProfileGroupItem>().Where(t => t.IndexId == item.IndexId).ToListAsync();
-            if (lst != null && lst.Count > 0)
+            if (lst is not null && lst.Count > 0)
             {
                 await SQLiteHelper.Instance.UpdateAllAsync(new List<ProfileGroupItem> { item });
             }
@@ -194,7 +194,7 @@ public class ProfileGroupItemManager
         {
             Instance.TryGet(indexId, out var groupItem);
 
-            if (groupItem == null || groupItem.ChildItems.IsNullOrEmpty())
+            if (groupItem is null || groupItem.ChildItems.IsNullOrEmpty())
             {
                 return false;
             }
@@ -202,7 +202,7 @@ public class ProfileGroupItemManager
             var childIds = Utils.String2List(groupItem.ChildItems)
                 .Where(p => !string.IsNullOrEmpty(p))
                 .ToList();
-            if (childIds == null)
+            if (childIds is null)
             {
                 return false;
             }
@@ -226,7 +226,7 @@ public class ProfileGroupItemManager
     public static async Task<(List<ProfileItem> Items, ProfileGroupItem? Group)> GetChildProfileItems(string? indexId)
     {
         Instance.TryGet(indexId, out var profileGroupItem);
-        if (profileGroupItem == null || profileGroupItem.NotHasChild())
+        if (profileGroupItem is null || profileGroupItem.NotHasChild())
         {
             return (new List<ProfileItem>(), profileGroupItem);
         }
@@ -240,7 +240,7 @@ public class ProfileGroupItemManager
 
     public static async Task<List<ProfileItem>> GetChildProfileItems(ProfileGroupItem? group)
     {
-        if (group == null || group.ChildItems.IsNullOrEmpty())
+        if (group is null || group.ChildItems.IsNullOrEmpty())
         {
             return new();
         }
@@ -250,7 +250,7 @@ public class ProfileGroupItemManager
                     .Select(AppManager.Instance.GetProfileItem)
             ))
             .Where(p =>
-                p != null &&
+                p is not null &&
                 p.IsValid() &&
                 p.ConfigType != EConfigType.Custom
             )
@@ -260,14 +260,14 @@ public class ProfileGroupItemManager
 
     public static async Task<List<ProfileItem>> GetSubChildProfileItems(ProfileGroupItem? group)
     {
-        if (group == null || group.SubChildItems.IsNullOrEmpty())
+        if (group is null || group.SubChildItems.IsNullOrEmpty())
         {
             return new();
         }
         var childProfiles = await AppManager.Instance.ProfileItems(group.SubChildItems);
 
         return childProfiles.Where(p =>
-                p != null &&
+                p is not null &&
                 p.IsValid() &&
                 !p.ConfigType.IsComplexType() &&
                 (group.Filter.IsNullOrEmpty() || Regex.IsMatch(p.Remarks, group.Filter))
@@ -279,7 +279,7 @@ public class ProfileGroupItemManager
     {
         // include grand children
         var childAddresses = new HashSet<string>();
-        if (!Instance.TryGet(indexId, out var groupItem) || groupItem == null)
+        if (!Instance.TryGet(indexId, out var groupItem) || groupItem is null)
         {
             return childAddresses;
         }
@@ -295,7 +295,7 @@ public class ProfileGroupItemManager
         foreach (var childId in childIds)
         {
             var childNode = await AppManager.Instance.GetProfileItem(childId);
-            if (childNode == null)
+            if (childNode is null)
             {
                 continue;
             }
@@ -321,7 +321,7 @@ public class ProfileGroupItemManager
     {
         // include grand children
         var childAddresses = new HashSet<string>();
-        if (!Instance.TryGet(indexId, out var groupItem) || groupItem == null)
+        if (!Instance.TryGet(indexId, out var groupItem) || groupItem is null)
         {
             return childAddresses;
         }
@@ -335,7 +335,7 @@ public class ProfileGroupItemManager
                 {
                     continue;
                 }
-                if (childNode.StreamSecurity == Global.StreamSecurity
+                if (childNode.StreamSecurity == AppConfig.StreamSecurity
                     && childNode.EchConfigList?.Contains("://") == true)
                 {
                     var idx = childNode.EchConfigList.IndexOf('+');
@@ -353,14 +353,14 @@ public class ProfileGroupItemManager
         foreach (var childId in childIds)
         {
             var childNode = await AppManager.Instance.GetProfileItem(childId);
-            if (childNode == null)
+            if (childNode is null)
             {
                 continue;
             }
 
             if (!childNode.IsComplex() && !childNode.EchConfigList.IsNullOrEmpty())
             {
-                if (childNode.StreamSecurity == Global.StreamSecurity
+                if (childNode.StreamSecurity == AppConfig.StreamSecurity
                     && childNode.EchConfigList?.Contains("://") == true)
                 {
                     var idx = childNode.EchConfigList.IndexOf('+');

v2rayN/ServiceLib/Manager/StatisticsManager.cs

@@ -7,13 +7,12 @@ public class StatisticsManager
 
     private Config _config;
     private ServerStatItem? _serverStatItem;
-    private List<ServerStatItem> _lstServerStat;
     private Func<ServerSpeedItem, Task>? _updateFunc;
 
     private StatisticsXrayService? _statisticsXray;
     private StatisticsSingboxService? _statisticsSingbox;
     private static readonly string _tag = "StatisticsHandler";
-    public List<ServerStatItem> ServerStat => _lstServerStat;
+    public List<ServerStatItem> ServerStat { get; private set; }
 
     public async Task Init(Config config, Func<ServerSpeedItem, Task> updateFunc)
     {
@@ -45,16 +44,16 @@ public class StatisticsManager
     {
         await SQLiteHelper.Instance.ExecuteAsync($"delete from ServerStatItem ");
         _serverStatItem = null;
-        _lstServerStat = new();
+        ServerStat = new();
     }
 
     public async Task SaveTo()
     {
         try
         {
-            if (_lstServerStat != null)
+            if (ServerStat is not null)
             {
-                await SQLiteHelper.Instance.UpdateAllAsync(_lstServerStat);
+                await SQLiteHelper.Instance.UpdateAllAsync(ServerStat);
             }
         }
         catch (Exception ex)
@@ -65,7 +64,7 @@ public class StatisticsManager
 
     public async Task CloneServerStatItem(string indexId, string toIndexId)
     {
-        if (_lstServerStat == null)
+        if (ServerStat is null)
         {
             return;
         }
@@ -75,8 +74,8 @@ public class StatisticsManager
             return;
         }
 
-        var stat = _lstServerStat.FirstOrDefault(t => t.IndexId == indexId);
-        if (stat == null)
+        var stat = ServerStat.FirstOrDefault(t => t.IndexId == indexId);
+        if (stat is null)
         {
             return;
         }
@@ -84,7 +83,7 @@ public class StatisticsManager
         var toStat = JsonUtils.DeepCopy(stat);
         toStat.IndexId = toIndexId;
         await SQLiteHelper.Instance.ReplaceAsync(toStat);
-        _lstServerStat.Add(toStat);
+        ServerStat.Add(toStat);
     }
 
     private async Task InitData()
@@ -94,7 +93,7 @@ public class StatisticsManager
         var ticks = DateTime.Now.Date.Ticks;
         await SQLiteHelper.Instance.ExecuteAsync($"update ServerStatItem set todayUp = 0,todayDown=0,dateNow={ticks} where dateNow<>{ticks}");
 
-        _lstServerStat = await SQLiteHelper.Instance.TableAsync<ServerStatItem>().ToListAsync();
+        ServerStat = await SQLiteHelper.Instance.TableAsync<ServerStatItem>().ToListAsync();
     }
 
     private async Task UpdateServerStatHandler(ServerSpeedItem server)
@@ -129,15 +128,15 @@ public class StatisticsManager
     private async Task GetServerStatItem(string indexId)
     {
         var ticks = DateTime.Now.Date.Ticks;
-        if (_serverStatItem != null && _serverStatItem.IndexId != indexId)
+        if (_serverStatItem is not null && _serverStatItem.IndexId != indexId)
         {
             _serverStatItem = null;
         }
 
-        if (_serverStatItem == null)
+        if (_serverStatItem is null)
         {
-            _serverStatItem = _lstServerStat.FirstOrDefault(t => t.IndexId == indexId);
-            if (_serverStatItem == null)
+            _serverStatItem = ServerStat.FirstOrDefault(t => t.IndexId == indexId);
+            if (_serverStatItem is null)
             {
                 _serverStatItem = new ServerStatItem
                 {
@@ -149,7 +148,7 @@ public class StatisticsManager
                     DateNow = ticks
                 };
                 await SQLiteHelper.Instance.ReplaceAsync(_serverStatItem);
-                _lstServerStat.Add(_serverStatItem);
+                ServerStat.Add(_serverStatItem);
             }
         }
 

v2rayN/ServiceLib/Manager/WebDavManager.cs

@@ -10,7 +10,7 @@ public sealed class WebDavManager
     private readonly Config? _config;
     private WebDavClient? _client;
     private string? _lastDescription;
-    private string _webDir = Global.AppName + "_backup";
+    private string _webDir = AppConfig.AppName + "_backup";
     private readonly string _webFileName = "backup.zip";
     private readonly string _tag = "WebDav--";
 
@@ -29,18 +29,18 @@ public sealed class WebDavManager
             {
                 throw new ArgumentException("webdav parameter error or null");
             }
-            if (_client != null)
+            if (_client is not null)
             {
                 _client?.Dispose();
                 _client = null;
             }
             if (_config.WebDavItem.DirName.IsNullOrEmpty())
             {
-                _webDir = Global.AppName + "_backup";
+                _webDir = AppConfig.AppName + "_backup";
             }
             else
             {
-                _webDir = _config.WebDavItem.DirName.TrimEx();
+                _webDir = _config.WebDavItem.DirName.TrimSafe();
             }
 
             // Ensure BaseAddress URL ends with a trailing slash

v2rayN/ServiceLib/Models/ConfigItems.cs

@@ -72,7 +72,7 @@ public class GUIItem
     public bool KeepOlderDedupl { get; set; }
     public int AutoUpdateInterval { get; set; }
     public int TrayMenuServersLimit { get; set; } = 20;
-    public bool EnableHWA { get; set; } = false;
+    public bool EnableHWA { get; set; }
     public bool EnableLog { get; set; } = true;
 }
 
@@ -99,7 +99,7 @@ public class UIItem
     public bool EnableDragDropSort { get; set; }
     public bool DoubleClick2Activate { get; set; }
     public bool AutoHideStartup { get; set; }
-    public bool Hide2TrayWhenClose { get; set; }    
+    public bool Hide2TrayWhenClose { get; set; }
     public bool MacOSShowInDock { get; set; }
     public List<ColumnItem> MainColumnItem { get; set; }
     public List<WindowSizeItem> WindowSizeItem { get; set; }

v2rayN/ServiceLib/Models/ProfileItem.cs

@@ -28,10 +28,10 @@ public class ProfileItem : ReactiveObject
 
     public string GetSummary()
     {
-        var summary = $"[{ConfigType.ToString()}] ";
+        var summary = $"[{ConfigType}] ";
         if (IsComplex())
         {
-            summary += $"[{CoreType.ToString()}]{Remarks}";
+            summary += $"[{CoreType}]{Remarks}";
         }
         else
         {
@@ -54,11 +54,11 @@ public class ProfileItem : ReactiveObject
 
     public string GetNetwork()
     {
-        if (Network.IsNullOrEmpty() || !Global.Networks.Contains(Network))
+        if (Network.IsNullOrEmpty() || !AppConfig.Networks.Contains(Network))
         {
-            return Global.DefaultNetwork;
+            return AppConfig.DefaultNetwork;
         }
-        return Network.TrimEx();
+        return Network.TrimSafe();
     }
 
     public bool IsComplex()
@@ -94,7 +94,7 @@ public class ProfileItem : ReactiveObject
                     return false;
                 }
 
-                if (!Global.Flows.Contains(Flow))
+                if (!AppConfig.Flows.Contains(Flow))
                 {
                     return false;
                 }
@@ -107,7 +107,7 @@ public class ProfileItem : ReactiveObject
                     return false;
                 }
 
-                if (string.IsNullOrEmpty(Security) || !Global.SsSecuritiesInSingbox.Contains(Security))
+                if (string.IsNullOrEmpty(Security) || !AppConfig.SsSecuritiesInSingbox.Contains(Security))
                 {
                     return false;
                 }
@@ -116,7 +116,7 @@ public class ProfileItem : ReactiveObject
         }
 
         if ((ConfigType is EConfigType.VLESS or EConfigType.Trojan)
-            && StreamSecurity == Global.StreamSecurityReality
+            && StreamSecurity == AppConfig.StreamSecurityReality
             && PublicKey.IsNullOrEmpty())
         {
             return false;

v2rayN/ServiceLib/Models/SemanticVersion.cs

@@ -82,7 +82,7 @@ public class SemanticVersion
 
     public string ToVersionString(string? prefix = null)
     {
-        if (prefix == null)
+        if (prefix is null)
         {
             return version;
         }

v2rayN/ServiceLib/Models/V2rayConfig.cs

@@ -128,7 +128,7 @@ public class Outboundsettings4Ray
 
     public string? secretKey { get; set; }
 
-    public Object? address { get; set; }
+    public object? address { get; set; }
     public int? port { get; set; }
 
     public List<WireguardPeer4Ray>? peers { get; set; }

v2rayN/ServiceLib/ServiceLib.csproj

@@ -2,6 +2,8 @@
 
 	<PropertyGroup>
 		<OutputType>Library</OutputType>
+        <NeutralLanguage>en-US</NeutralLanguage>
+        <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
 	</PropertyGroup>
 
 	<ItemGroup>

v2rayN/ServiceLib/Services/CoreConfig/CoreConfigClashService.cs

@@ -3,20 +3,15 @@ namespace ServiceLib.Services.CoreConfig;
 /// <summary>
 /// Core configuration file processing class
 /// </summary>
-public class CoreConfigClashService
+public class CoreConfigClashService(Config config)
 {
-    private Config _config;
+    private readonly Config _config = config;
     private static readonly string _tag = "CoreConfigClashService";
 
-    public CoreConfigClashService(Config config)
-    {
-        _config = config;
-    }
-
     public async Task<RetResult> GenerateClientCustomConfig(ProfileItem node, string? fileName)
     {
         var ret = new RetResult();
-        if (node == null || fileName is null)
+        if (node is null || fileName is null)
         {
             ret.Msg = ResUI.CheckServerSettings;
             return ret;
@@ -26,7 +21,7 @@ public class CoreConfigClashService
 
         try
         {
-            if (node == null)
+            if (node is null)
             {
                 ret.Msg = ResUI.CheckServerSettings;
                 return ret;
@@ -66,7 +61,7 @@ public class CoreConfigClashService
             }
 
             var fileContent = YamlUtils.FromYaml<Dictionary<string, object>>(txtFile);
-            if (fileContent == null)
+            if (fileContent is null)
             {
                 ret.Msg = ResUI.FailedConversionConfiguration;
                 return ret;
@@ -78,7 +73,7 @@ public class CoreConfigClashService
             fileContent["log-level"] = GetLogLevel(_config.CoreBasicItem.Loglevel);
 
             //external-controller
-            fileContent["external-controller"] = $"{Global.Loopback}:{AppManager.Instance.StatePort2}";
+            fileContent["external-controller"] = $"{AppConfig.Loopback}:{AppManager.Instance.StatePort2}";
             fileContent.Remove("secret");
             //allow-lan
             if (_config.Inbound.First().AllowLANConn)
@@ -110,11 +105,11 @@ public class CoreConfigClashService
             //enable tun mode
             if (_config.TunModeItem.EnableTun)
             {
-                var tun = EmbedUtils.GetEmbedText(Global.ClashTunYaml);
+                var tun = EmbedUtils.GetEmbedText(AppConfig.ClashTunYaml);
                 if (tun.IsNotEmpty())
                 {
                     var tunContent = YamlUtils.FromYaml<Dictionary<string, object>>(tun);
-                    if (tunContent != null)
+                    if (tunContent is not null)
                     {
                         fileContent["tun"] = tunContent["tun"];
                     }
@@ -161,17 +156,17 @@ public class CoreConfigClashService
             return;
         }
 
-        var path = Utils.GetConfigPath(Global.ClashMixinConfigFileName);
+        var path = Utils.GetConfigPath(AppConfig.ClashMixinConfigFileName);
         if (!File.Exists(path))
         {
-            var mixin = EmbedUtils.GetEmbedText(Global.ClashMixinYaml);
+            var mixin = EmbedUtils.GetEmbedText(AppConfig.ClashMixinYaml);
             await File.AppendAllTextAsync(path, mixin);
         }
 
-        var txtFile = await File.ReadAllTextAsync(Utils.GetConfigPath(Global.ClashMixinConfigFileName));
+        var txtFile = await File.ReadAllTextAsync(Utils.GetConfigPath(AppConfig.ClashMixinConfigFileName));
 
         var mixinContent = YamlUtils.FromYaml<Dictionary<string, object>>(txtFile);
-        if (mixinContent == null)
+        if (mixinContent is null)
         {
             return;
         }

v2rayN/ServiceLib/Services/CoreConfig/Singbox/CoreConfigSingboxService.cs

@@ -12,7 +12,7 @@ public partial class CoreConfigSingboxService(Config config)
         var ret = new RetResult();
         try
         {
-            if (node == null
+            if (node is null
                 || !node.IsValid())
             {
                 ret.Msg = ResUI.CheckServerSettings;
@@ -38,7 +38,7 @@ public partial class CoreConfigSingboxService(Config config)
                 }
             }
 
-            var result = EmbedUtils.GetEmbedText(Global.SingboxSampleClient);
+            var result = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleClient);
             if (result.IsNullOrEmpty())
             {
                 ret.Msg = ResUI.FailedGetDefaultConfiguration;
@@ -46,7 +46,7 @@ public partial class CoreConfigSingboxService(Config config)
             }
 
             var singboxConfig = JsonUtils.Deserialize<SingboxConfig>(result);
-            if (singboxConfig == null)
+            if (singboxConfig is null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -61,7 +61,7 @@ public partial class CoreConfigSingboxService(Config config)
                 singboxConfig.outbounds.RemoveAt(0);
                 var endpoints = new Endpoints4Sbox();
                 await GenEndpoint(node, endpoints);
-                endpoints.tag = Global.ProxyTag;
+                endpoints.tag = AppConfig.ProxyTag;
                 singboxConfig.endpoints = new() { endpoints };
             }
             else
@@ -98,7 +98,7 @@ public partial class CoreConfigSingboxService(Config config)
         var ret = new RetResult();
         try
         {
-            if (_config == null)
+            if (_config is null)
             {
                 ret.Msg = ResUI.CheckServerSettings;
                 return ret;
@@ -106,8 +106,8 @@ public partial class CoreConfigSingboxService(Config config)
 
             ret.Msg = ResUI.InitialConfiguration;
 
-            var result = EmbedUtils.GetEmbedText(Global.SingboxSampleClient);
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.SingboxSampleOutbound);
+            var result = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleClient);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleOutbound);
             if (result.IsNullOrEmpty() || txtOutbound.IsNullOrEmpty())
             {
                 ret.Msg = ResUI.FailedGetDefaultConfiguration;
@@ -115,7 +115,7 @@ public partial class CoreConfigSingboxService(Config config)
             }
 
             var singboxConfig = JsonUtils.Deserialize<SingboxConfig>(result);
-            if (singboxConfig == null)
+            if (singboxConfig is null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -142,7 +142,7 @@ public partial class CoreConfigSingboxService(Config config)
 
             foreach (var it in selecteds)
             {
-                if (!Global.SingboxSupportConfigType.Contains(it.ConfigType))
+                if (!AppConfig.SingboxSupportConfigType.Contains(it.ConfigType))
                 {
                     continue;
                 }
@@ -158,7 +158,7 @@ public partial class CoreConfigSingboxService(Config config)
 
                 //find unused port
                 var port = initPort;
-                for (var k = initPort; k < Global.MaxPort; k++)
+                for (var k = initPort; k < AppConfig.MaxPort; k++)
                 {
                     if (lstIpEndPoints?.FindIndex(_it => _it.Port == k) >= 0)
                     {
@@ -185,7 +185,7 @@ public partial class CoreConfigSingboxService(Config config)
                 //inbound
                 Inbound4Sbox inbound = new()
                 {
-                    listen = Global.Loopback,
+                    listen = AppConfig.Loopback,
                     listen_port = port,
                     type = EInboundProtocol.mixed.ToString(),
                 };
@@ -199,7 +199,7 @@ public partial class CoreConfigSingboxService(Config config)
                     ret.Msg = ResUI.FailedGenDefaultConfiguration;
                     return ret;
                 }
-                var tag = Global.ProxyTag + inbound.listen_port.ToString();
+                var tag = AppConfig.ProxyTag + inbound.listen_port.ToString();
                 server.tag = tag;
                 if (server is Endpoints4Sbox endpoint)
                 {
@@ -221,7 +221,7 @@ public partial class CoreConfigSingboxService(Config config)
             }
 
             var rawDNSItem = await AppManager.Instance.GetDNSItem(ECoreType.sing_box);
-            if (rawDNSItem != null && rawDNSItem.Enabled == true)
+            if (rawDNSItem is not null && rawDNSItem.Enabled == true)
             {
                 await GenDnsDomainsCompatible(singboxConfig, rawDNSItem);
             }
@@ -231,7 +231,7 @@ public partial class CoreConfigSingboxService(Config config)
             }
             singboxConfig.route.default_domain_resolver = new()
             {
-                server = Global.SingboxLocalDNSTag,
+                server = AppConfig.SingboxLocalDNSTag,
             };
 
             ret.Success = true;
@@ -251,7 +251,7 @@ public partial class CoreConfigSingboxService(Config config)
         var ret = new RetResult();
         try
         {
-            if (node == null
+            if (node is null
                 || !node.IsValid())
             {
                 ret.Msg = ResUI.CheckServerSettings;
@@ -265,7 +265,7 @@ public partial class CoreConfigSingboxService(Config config)
 
             ret.Msg = ResUI.InitialConfiguration;
 
-            var result = EmbedUtils.GetEmbedText(Global.SingboxSampleClient);
+            var result = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleClient);
             if (result.IsNullOrEmpty())
             {
                 ret.Msg = ResUI.FailedGetDefaultConfiguration;
@@ -273,7 +273,7 @@ public partial class CoreConfigSingboxService(Config config)
             }
 
             var singboxConfig = JsonUtils.Deserialize<SingboxConfig>(result);
-            if (singboxConfig == null)
+            if (singboxConfig is null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -285,7 +285,7 @@ public partial class CoreConfigSingboxService(Config config)
                 singboxConfig.outbounds.RemoveAt(0);
                 var endpoints = new Endpoints4Sbox();
                 await GenEndpoint(node, endpoints);
-                endpoints.tag = Global.ProxyTag;
+                endpoints.tag = AppConfig.ProxyTag;
                 singboxConfig.endpoints = new() { endpoints };
             }
             else
@@ -294,7 +294,7 @@ public partial class CoreConfigSingboxService(Config config)
             }
             await GenMoreOutbounds(node, singboxConfig);
             var item = await AppManager.Instance.GetDNSItem(ECoreType.sing_box);
-            if (item != null && item.Enabled == true)
+            if (item is not null && item.Enabled == true)
             {
                 await GenDnsDomainsCompatible(singboxConfig, item);
             }
@@ -304,7 +304,7 @@ public partial class CoreConfigSingboxService(Config config)
             }
             singboxConfig.route.default_domain_resolver = new()
             {
-                server = Global.SingboxLocalDNSTag,
+                server = AppConfig.SingboxLocalDNSTag,
             };
 
             singboxConfig.route.rules.Clear();
@@ -312,7 +312,7 @@ public partial class CoreConfigSingboxService(Config config)
             singboxConfig.inbounds.Add(new()
             {
                 tag = $"{EInboundProtocol.mixed}{port}",
-                listen = Global.Loopback,
+                listen = AppConfig.Loopback,
                 listen_port = port,
                 type = EInboundProtocol.mixed.ToString(),
             });
@@ -335,7 +335,7 @@ public partial class CoreConfigSingboxService(Config config)
         var ret = new RetResult();
         try
         {
-            if (_config == null)
+            if (_config is null)
             {
                 ret.Msg = ResUI.CheckServerSettings;
                 return ret;
@@ -343,8 +343,8 @@ public partial class CoreConfigSingboxService(Config config)
 
             ret.Msg = ResUI.InitialConfiguration;
 
-            var result = EmbedUtils.GetEmbedText(Global.SingboxSampleClient);
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.SingboxSampleOutbound);
+            var result = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleClient);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleOutbound);
             if (result.IsNullOrEmpty() || txtOutbound.IsNullOrEmpty())
             {
                 ret.Msg = ResUI.FailedGetDefaultConfiguration;
@@ -352,7 +352,7 @@ public partial class CoreConfigSingboxService(Config config)
             }
 
             var singboxConfig = JsonUtils.Deserialize<SingboxConfig>(result);
-            if (singboxConfig == null)
+            if (singboxConfig is null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -392,7 +392,7 @@ public partial class CoreConfigSingboxService(Config config)
         var ret = new RetResult();
         try
         {
-            if (_config == null)
+            if (_config is null)
             {
                 ret.Msg = ResUI.CheckServerSettings;
                 return ret;
@@ -400,8 +400,8 @@ public partial class CoreConfigSingboxService(Config config)
 
             ret.Msg = ResUI.InitialConfiguration;
 
-            var result = EmbedUtils.GetEmbedText(Global.SingboxSampleClient);
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.SingboxSampleOutbound);
+            var result = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleClient);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleOutbound);
             if (result.IsNullOrEmpty() || txtOutbound.IsNullOrEmpty())
             {
                 ret.Msg = ResUI.FailedGetDefaultConfiguration;
@@ -409,7 +409,7 @@ public partial class CoreConfigSingboxService(Config config)
             }
 
             var singboxConfig = JsonUtils.Deserialize<SingboxConfig>(result);
-            if (singboxConfig == null)
+            if (singboxConfig is null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -447,7 +447,7 @@ public partial class CoreConfigSingboxService(Config config)
     public async Task<RetResult> GenerateClientCustomConfig(ProfileItem node, string? fileName)
     {
         var ret = new RetResult();
-        if (node == null || fileName is null)
+        if (node is null || fileName is null)
         {
             ret.Msg = ResUI.CheckServerSettings;
             return ret;
@@ -457,7 +457,7 @@ public partial class CoreConfigSingboxService(Config config)
 
         try
         {
-            if (node == null)
+            if (node is null)
             {
                 ret.Msg = ResUI.CheckServerSettings;
                 return ret;
@@ -484,11 +484,11 @@ public partial class CoreConfigSingboxService(Config config)
                 return ret;
             }
 
-            if (node.Address == Global.CoreMultipleLoadConfigFileName)
+            if (node.Address == AppConfig.CoreMultipleLoadConfigFileName)
             {
                 var txtFile = File.ReadAllText(addressFileName);
                 var singboxConfig = JsonUtils.Deserialize<SingboxConfig>(txtFile);
-                if (singboxConfig == null)
+                if (singboxConfig is null)
                 {
                     File.Copy(addressFileName, fileName);
                 }

v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxConfigTemplateService.cs

@@ -5,7 +5,7 @@ public partial class CoreConfigSingboxService
     private async Task<string> ApplyFullConfigTemplate(SingboxConfig singboxConfig)
     {
         var fullConfigTemplate = await AppManager.Instance.GetFullConfigTemplateItem(ECoreType.sing_box);
-        if (fullConfigTemplate == null || !fullConfigTemplate.Enabled)
+        if (fullConfigTemplate is null || !fullConfigTemplate.Enabled)
         {
             return JsonUtils.Serialize(singboxConfig);
         }
@@ -17,7 +17,7 @@ public partial class CoreConfigSingboxService
         }
 
         var fullConfigTemplateNode = JsonNode.Parse(fullConfigTemplateItem);
-        if (fullConfigTemplateNode == null)
+        if (fullConfigTemplateNode is null)
         {
             return JsonUtils.Serialize(singboxConfig);
         }
@@ -42,7 +42,7 @@ public partial class CoreConfigSingboxService
         fullConfigTemplateNode["outbounds"] = customOutboundsNode;
 
         // Process endpoints
-        if (singboxConfig.endpoints != null && singboxConfig.endpoints.Count > 0)
+        if (singboxConfig.endpoints is not null && singboxConfig.endpoints.Count > 0)
         {
             var customEndpointsNode = fullConfigTemplateNode["endpoints"] is JsonArray endpoints ? endpoints : new JsonArray();
             foreach (var endpoint in singboxConfig.endpoints)

v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxDnsService.cs

@@ -7,7 +7,7 @@ public partial class CoreConfigSingboxService
         try
         {
             var item = await AppManager.Instance.GetDNSItem(ECoreType.sing_box);
-            if (item != null && item.Enabled == true)
+            if (item is not null && item.Enabled == true)
             {
                 return await GenDnsCompatible(node, singboxConfig);
             }
@@ -22,22 +22,22 @@ public partial class CoreConfigSingboxService
             // final dns
             var routing = await ConfigHandler.GetDefaultRouting(_config);
             var useDirectDns = false;
-            if (routing != null)
+            if (routing is not null)
             {
                 var rules = JsonUtils.Deserialize<List<RulesItem>>(routing.RuleSet) ?? [];
 
                 useDirectDns = rules?.LastOrDefault() is { } lastRule &&
-                                  lastRule.OutboundTag == Global.DirectTag &&
+                                  lastRule.OutboundTag == AppConfig.DirectTag &&
                                   (lastRule.Port == "0-65535" ||
                                    lastRule.Network == "tcp,udp" ||
                                    lastRule.Ip?.Contains("0.0.0.0/0") == true);
             }
-            singboxConfig.dns.final = useDirectDns ? Global.SingboxDirectDNSTag : Global.SingboxRemoteDNSTag;
+            singboxConfig.dns.final = useDirectDns ? AppConfig.SingboxDirectDNSTag : AppConfig.SingboxRemoteDNSTag;
             if ((!useDirectDns) && simpleDNSItem.FakeIP == true && simpleDNSItem.GlobalFakeIp == false)
             {
                 singboxConfig.dns.rules.Add(new()
                 {
-                    server = Global.SingboxFakeDNSTag,
+                    server = AppConfig.SingboxFakeDNSTag,
                     query_type = new List<int> { 1, 28 }, // A and AAAA
                     rewrite_ttl = 1,
                 });
@@ -57,29 +57,29 @@ public partial class CoreConfigSingboxService
         var finalDns = await GenDnsDomains(singboxConfig, simpleDNSItem);
 
         var directDns = ParseDnsAddress(simpleDNSItem.DirectDNS);
-        directDns.tag = Global.SingboxDirectDNSTag;
-        directDns.domain_resolver = Global.SingboxLocalDNSTag;
+        directDns.tag = AppConfig.SingboxDirectDNSTag;
+        directDns.domain_resolver = AppConfig.SingboxLocalDNSTag;
 
         var remoteDns = ParseDnsAddress(simpleDNSItem.RemoteDNS);
-        remoteDns.tag = Global.SingboxRemoteDNSTag;
-        remoteDns.detour = Global.ProxyTag;
-        remoteDns.domain_resolver = Global.SingboxLocalDNSTag;
+        remoteDns.tag = AppConfig.SingboxRemoteDNSTag;
+        remoteDns.detour = AppConfig.ProxyTag;
+        remoteDns.domain_resolver = AppConfig.SingboxLocalDNSTag;
 
         var hostsDns = new Server4Sbox
         {
-            tag = Global.SingboxHostsDNSTag,
+            tag = AppConfig.SingboxHostsDNSTag,
             type = "hosts",
             predefined = new(),
         };
         if (simpleDNSItem.AddCommonHosts == true)
         {
-            hostsDns.predefined = Global.PredefinedHosts;
+            hostsDns.predefined = AppConfig.PredefinedHosts;
         }
 
         if (simpleDNSItem.UseSystemHosts == true)
         {
             var systemHosts = Utils.GetSystemHosts();
-            if (systemHosts != null && systemHosts.Count > 0)
+            if (systemHosts is not null && systemHosts.Count > 0)
             {
                 foreach (var host in systemHosts)
                 {
@@ -102,15 +102,15 @@ public partial class CoreConfigSingboxService
         {
             if (finalDns.server == host.Key)
             {
-                finalDns.domain_resolver = Global.SingboxHostsDNSTag;
+                finalDns.domain_resolver = AppConfig.SingboxHostsDNSTag;
             }
             if (remoteDns.server == host.Key)
             {
-                remoteDns.domain_resolver = Global.SingboxHostsDNSTag;
+                remoteDns.domain_resolver = AppConfig.SingboxHostsDNSTag;
             }
             if (directDns.server == host.Key)
             {
-                directDns.domain_resolver = Global.SingboxHostsDNSTag;
+                directDns.domain_resolver = AppConfig.SingboxHostsDNSTag;
             }
         }
 
@@ -125,7 +125,7 @@ public partial class CoreConfigSingboxService
         {
             var fakeip = new Server4Sbox
             {
-                tag = Global.SingboxFakeDNSTag,
+                tag = AppConfig.SingboxFakeDNSTag,
                 type = "fakeip",
                 inet4_range = "198.18.0.0/15",
                 inet6_range = "fc00::/18",
@@ -137,22 +137,22 @@ public partial class CoreConfigSingboxService
         var (_, dnsServer) = ParseEchParam(node?.EchConfigList);
         if (dnsServer is not null)
         {
-            dnsServer.tag = Global.SingboxEchDNSTag;
+            dnsServer.tag = AppConfig.SingboxEchDNSTag;
             if (dnsServer.server is not null
                 && hostsDns.predefined.ContainsKey(dnsServer.server))
             {
-                dnsServer.domain_resolver = Global.SingboxHostsDNSTag;
+                dnsServer.domain_resolver = AppConfig.SingboxHostsDNSTag;
             }
             else
             {
-                dnsServer.domain_resolver = Global.SingboxLocalDNSTag;
+                dnsServer.domain_resolver = AppConfig.SingboxLocalDNSTag;
             }
             singboxConfig.dns.servers.Add(dnsServer);
         }
         else if (node?.ConfigType.IsGroupType() == true)
         {
             var echDnsObject = JsonUtils.DeepCopy(directDns);
-            echDnsObject.tag = Global.SingboxEchDNSTag;
+            echDnsObject.tag = AppConfig.SingboxEchDNSTag;
             singboxConfig.dns.servers.Add(echDnsObject);
         }
 
@@ -162,7 +162,7 @@ public partial class CoreConfigSingboxService
     private async Task<Server4Sbox> GenDnsDomains(SingboxConfig singboxConfig, SimpleDNSItem? simpleDNSItem)
     {
         var finalDns = ParseDnsAddress(simpleDNSItem.BootstrapDNS);
-        finalDns.tag = Global.SingboxLocalDNSTag;
+        finalDns.tag = AppConfig.SingboxLocalDNSTag;
         singboxConfig.dns ??= new Dns4Sbox();
         singboxConfig.dns.servers ??= new List<Server4Sbox>();
         singboxConfig.dns.servers.Add(finalDns);
@@ -176,16 +176,16 @@ public partial class CoreConfigSingboxService
 
         singboxConfig.dns.rules.AddRange(new[]
             {
-            new Rule4Sbox { ip_accept_any = true, server = Global.SingboxHostsDNSTag },
+            new Rule4Sbox { ip_accept_any = true, server = AppConfig.SingboxHostsDNSTag },
             new Rule4Sbox
             {
-                server = Global.SingboxRemoteDNSTag,
+                server = AppConfig.SingboxRemoteDNSTag,
                 strategy = simpleDNSItem.SingboxStrategy4Proxy.NullIfEmpty(),
                 clash_mode = ERuleMode.Global.ToString()
             },
             new Rule4Sbox
             {
-                server = Global.SingboxDirectDNSTag,
+                server = AppConfig.SingboxDirectDNSTag,
                 strategy = simpleDNSItem.SingboxStrategy4Direct.NullIfEmpty(),
                 clash_mode = ERuleMode.Direct.ToString()
             }
@@ -198,7 +198,7 @@ public partial class CoreConfigSingboxService
             singboxConfig.dns.rules.Add(new()
             {
                 query_type = new List<int> { 64, 65 },
-                server = Global.SingboxEchDNSTag,
+                server = AppConfig.SingboxEchDNSTag,
                 domain = echDomain is not null ? new List<string> { echDomain } : null,
             });
         }
@@ -210,7 +210,7 @@ public partial class CoreConfigSingboxService
                 singboxConfig.dns.rules.Add(new()
                 {
                     query_type = new List<int> { 64, 65 },
-                    server = Global.SingboxEchDNSTag,
+                    server = AppConfig.SingboxEchDNSTag,
                     domain = queryServerNames,
                 });
             }
@@ -228,11 +228,11 @@ public partial class CoreConfigSingboxService
 
         if (simpleDNSItem.FakeIP == true && simpleDNSItem.GlobalFakeIp == true)
         {
-            var fakeipFilterRule = JsonUtils.Deserialize<Rule4Sbox>(EmbedUtils.GetEmbedText(Global.SingboxFakeIPFilterFileName));
+            var fakeipFilterRule = JsonUtils.Deserialize<Rule4Sbox>(EmbedUtils.GetEmbedText(AppConfig.SingboxFakeIPFilterFileName));
             fakeipFilterRule.invert = true;
             var rule4Fake = new Rule4Sbox
             {
-                server = Global.SingboxFakeDNSTag,
+                server = AppConfig.SingboxFakeDNSTag,
                 type = "logical",
                 mode = "and",
                 rewrite_ttl = 1,
@@ -249,7 +249,7 @@ public partial class CoreConfigSingboxService
         }
 
         var routing = await ConfigHandler.GetDefaultRouting(_config);
-        if (routing == null)
+        if (routing is null)
         {
             return 0;
         }
@@ -306,9 +306,9 @@ public partial class CoreConfigSingboxService
                 continue;
             }
 
-            if (item.OutboundTag == Global.DirectTag)
+            if (item.OutboundTag == AppConfig.DirectTag)
             {
-                rule.server = Global.SingboxDirectDNSTag;
+                rule.server = AppConfig.SingboxDirectDNSTag;
                 rule.strategy = string.IsNullOrEmpty(simpleDNSItem.SingboxStrategy4Direct) ? null : simpleDNSItem.SingboxStrategy4Direct;
 
                 if (expectedIPsRegions.Count > 0 && rule.geosite?.Count > 0)
@@ -327,7 +327,7 @@ public partial class CoreConfigSingboxService
                     }
                 }
             }
-            else if (item.OutboundTag == Global.BlockTag)
+            else if (item.OutboundTag == AppConfig.BlockTag)
             {
                 rule.action = "predefined";
                 rule.rcode = "NXDOMAIN";
@@ -337,12 +337,12 @@ public partial class CoreConfigSingboxService
                 if (simpleDNSItem.FakeIP == true && simpleDNSItem.GlobalFakeIp == false)
                 {
                     var rule4Fake = JsonUtils.DeepCopy(rule);
-                    rule4Fake.server = Global.SingboxFakeDNSTag;
+                    rule4Fake.server = AppConfig.SingboxFakeDNSTag;
                     rule4Fake.query_type = new List<int> { 1, 28 }; // A and AAAA
                     rule4Fake.rewrite_ttl = 1;
                     singboxConfig.dns.rules.Add(rule4Fake);
                 }
-                rule.server = Global.SingboxRemoteDNSTag;
+                rule.server = AppConfig.SingboxRemoteDNSTag;
                 rule.strategy = string.IsNullOrEmpty(simpleDNSItem.SingboxStrategy4Proxy) ? null : simpleDNSItem.SingboxStrategy4Proxy;
             }
 
@@ -360,11 +360,11 @@ public partial class CoreConfigSingboxService
             var strDNS = string.Empty;
             if (_config.TunModeItem.EnableTun)
             {
-                strDNS = string.IsNullOrEmpty(item?.TunDNS) ? EmbedUtils.GetEmbedText(Global.TunSingboxDNSFileName) : item?.TunDNS;
+                strDNS = string.IsNullOrEmpty(item?.TunDNS) ? EmbedUtils.GetEmbedText(AppConfig.TunSingboxDNSFileName) : item?.TunDNS;
             }
             else
             {
-                strDNS = string.IsNullOrEmpty(item?.NormalDNS) ? EmbedUtils.GetEmbedText(Global.DNSSingboxNormalFileName) : item?.NormalDNS;
+                strDNS = string.IsNullOrEmpty(item?.NormalDNS) ? EmbedUtils.GetEmbedText(AppConfig.DNSSingboxNormalFileName) : item?.NormalDNS;
             }
 
             var dns4Sbox = JsonUtils.Deserialize<Dns4Sbox>(strDNS);
@@ -374,7 +374,7 @@ public partial class CoreConfigSingboxService
             }
             singboxConfig.dns = dns4Sbox;
 
-            if (dns4Sbox.servers != null && dns4Sbox.servers.Count > 0 && dns4Sbox.servers.First().address.IsNullOrEmpty())
+            if (dns4Sbox.servers is not null && dns4Sbox.servers.Count > 0 && dns4Sbox.servers.First().address.IsNullOrEmpty())
             {
                 await GenDnsDomainsCompatible(singboxConfig, item);
             }
@@ -398,9 +398,9 @@ public partial class CoreConfigSingboxService
         dns4Sbox.servers ??= [];
         dns4Sbox.rules ??= [];
 
-        var tag = Global.SingboxLocalDNSTag;
+        var tag = AppConfig.SingboxLocalDNSTag;
 
-        var finalDnsAddress = string.IsNullOrEmpty(dnsItem?.DomainDNSAddress) ? Global.DomainPureIPDNSAddress.FirstOrDefault() : dnsItem?.DomainDNSAddress;
+        var finalDnsAddress = string.IsNullOrEmpty(dnsItem?.DomainDNSAddress) ? AppConfig.DomainPureIPDNSAddress.FirstOrDefault() : dnsItem?.DomainDNSAddress;
 
         var localDnsServer = ParseDnsAddress(finalDnsAddress);
         localDnsServer.tag = tag;
@@ -417,12 +417,12 @@ public partial class CoreConfigSingboxService
         dns4Sbox.servers ??= [];
         dns4Sbox.rules ??= [];
 
-        var tag = Global.SingboxLocalDNSTag;
+        var tag = AppConfig.SingboxLocalDNSTag;
         dns4Sbox.servers.Add(new()
         {
             tag = tag,
-            address = string.IsNullOrEmpty(dnsItem?.DomainDNSAddress) ? Global.DomainPureIPDNSAddress.FirstOrDefault() : dnsItem?.DomainDNSAddress,
-            detour = Global.DirectTag,
+            address = string.IsNullOrEmpty(dnsItem?.DomainDNSAddress) ? AppConfig.DomainPureIPDNSAddress.FirstOrDefault() : dnsItem?.DomainDNSAddress,
+            detour = AppConfig.DirectTag,
             strategy = string.IsNullOrEmpty(dnsItem?.DomainStrategy4Freedom) ? null : dnsItem?.DomainStrategy4Freedom,
         });
         dns4Sbox.rules.Insert(0, new()
@@ -432,7 +432,7 @@ public partial class CoreConfigSingboxService
         });
         dns4Sbox.rules.Insert(0, new()
         {
-            server = dns4Sbox.servers.Where(t => t.detour == Global.ProxyTag).Select(t => t.tag).FirstOrDefault() ?? "remote",
+            server = dns4Sbox.servers.Where(t => t.detour == AppConfig.ProxyTag).Select(t => t.tag).FirstOrDefault() ?? "remote",
             clash_mode = ERuleMode.Global.ToString()
         });
 
@@ -441,7 +441,7 @@ public partial class CoreConfigSingboxService
                        .Select(t => t.server)
                        .Distinct()
                        .ToList();
-        if (lstDomain != null && lstDomain.Count > 0)
+        if (lstDomain is not null && lstDomain.Count > 0)
         {
             dns4Sbox.rules.Insert(0, new()
             {
@@ -456,7 +456,7 @@ public partial class CoreConfigSingboxService
 
     private async Task<int> GenOutboundDnsRule(ProfileItem? node, SingboxConfig singboxConfig)
     {
-        if (node == null)
+        if (node is null)
         {
             return 0;
         }
@@ -466,7 +466,7 @@ public partial class CoreConfigSingboxService
         {
             domain.Add(node.Address);
         }
-        if (node.Address == Global.Loopback && node.SpiderX.IsNotEmpty()) // Tun2SocksAddress
+        if (node.Address == AppConfig.Loopback && node.SpiderX.IsNotEmpty()) // Tun2SocksAddress
         {
             domain.AddRange(Utils.String2List(node.SpiderX)
                 .Where(Utils.IsDomain)
@@ -481,7 +481,7 @@ public partial class CoreConfigSingboxService
         singboxConfig.dns.rules ??= new List<Rule4Sbox>();
         singboxConfig.dns.rules.Insert(0, new Rule4Sbox
         {
-            server = Global.SingboxLocalDNSTag,
+            server = AppConfig.SingboxLocalDNSTag,
             domain = domain,
         });
 

v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxInboundService.cs

@@ -16,7 +16,7 @@ public partial class CoreConfigSingboxService
                 {
                     type = EInboundProtocol.mixed.ToString(),
                     tag = EInboundProtocol.socks.ToString(),
-                    listen = Global.Loopback,
+                    listen = AppConfig.Loopback,
                 };
                 singboxConfig.inbounds.Add(inbound);
 
@@ -53,14 +53,14 @@ public partial class CoreConfigSingboxService
             {
                 if (_config.TunModeItem.Mtu <= 0)
                 {
-                    _config.TunModeItem.Mtu = Global.TunMtus.First();
+                    _config.TunModeItem.Mtu = AppConfig.TunMtus.First();
                 }
                 if (_config.TunModeItem.Stack.IsNullOrEmpty())
                 {
-                    _config.TunModeItem.Stack = Global.TunStacks.First();
+                    _config.TunModeItem.Stack = AppConfig.TunStacks.First();
                 }
 
-                var tunInbound = JsonUtils.Deserialize<Inbound4Sbox>(EmbedUtils.GetEmbedText(Global.TunSingboxInboundFileName)) ?? new Inbound4Sbox { };
+                var tunInbound = JsonUtils.Deserialize<Inbound4Sbox>(EmbedUtils.GetEmbedText(AppConfig.TunSingboxInboundFileName)) ?? new Inbound4Sbox { };
                 tunInbound.interface_name = Utils.IsMacOS() ? $"utun{new Random().Next(99)}" : "singbox_tun";
                 tunInbound.mtu = _config.TunModeItem.Mtu;
                 tunInbound.auto_route = _config.TunModeItem.AutoRoute;

v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxLogService.cs

@@ -21,7 +21,7 @@ public partial class CoreConfigSingboxService
                 default:
                     break;
             }
-            if (_config.CoreBasicItem.Loglevel == Global.None)
+            if (_config.CoreBasicItem.Loglevel == AppConfig.None)
             {
                 singboxConfig.log.disabled = true;
             }

v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxOutboundService.cs

@@ -8,7 +8,7 @@ public partial class CoreConfigSingboxService
         {
             outbound.server = node.Address;
             outbound.server_port = node.Port;
-            outbound.type = Global.ProtocolTypes[node.ConfigType];
+            outbound.type = AppConfig.ProtocolTypes[node.ConfigType];
 
             switch (node.ConfigType)
             {
@@ -16,13 +16,13 @@ public partial class CoreConfigSingboxService
                     {
                         outbound.uuid = node.Id;
                         outbound.alter_id = node.AlterId;
-                        if (Global.VmessSecurities.Contains(node.Security))
+                        if (AppConfig.VmessSecurities.Contains(node.Security))
                         {
                             outbound.security = node.Security;
                         }
                         else
                         {
-                            outbound.security = Global.DefaultSecurity;
+                            outbound.security = AppConfig.DefaultSecurity;
                         }
 
                         await GenOutboundMux(node, outbound);
@@ -31,10 +31,10 @@ public partial class CoreConfigSingboxService
                     }
                 case EConfigType.Shadowsocks:
                     {
-                        outbound.method = AppManager.Instance.GetShadowsocksSecurities(node).Contains(node.Security) ? node.Security : Global.None;
+                        outbound.method = AppManager.Instance.GetShadowsocksSecurities(node).Contains(node.Security) ? node.Security : AppConfig.None;
                         outbound.password = node.Id;
 
-                        if (node.Network == nameof(ETransport.tcp) && node.HeaderType == Global.TcpHeaderHttp)
+                        if (node.Network == nameof(ETransport.tcp) && node.HeaderType == AppConfig.TcpHeaderHttp)
                         {
                             outbound.plugin = "obfs-local";
                             outbound.plugin_opts = $"obfs=http;obfs-host={node.RequestHost};";
@@ -55,7 +55,7 @@ public partial class CoreConfigSingboxService
                             {
                                 pluginArgs += "mode=quic;";
                             }
-                            if (node.StreamSecurity == Global.StreamSecurity)
+                            if (node.StreamSecurity == AppConfig.StreamSecurity)
                             {
                                 pluginArgs += "tls;";
                                 var certs = CertPemManager.ParsePemChain(node.Cert);
@@ -141,7 +141,7 @@ public partial class CoreConfigSingboxService
                             outbound.obfs = new()
                             {
                                 type = "salamander",
-                                password = node.Path.TrimEx(),
+                                password = node.Path.TrimSafe(),
                             };
                         }
 
@@ -192,7 +192,7 @@ public partial class CoreConfigSingboxService
         try
         {
             endpoint.address = Utils.String2List(node.RequestHost);
-            endpoint.type = Global.ProtocolTypes[node.ConfigType];
+            endpoint.type = AppConfig.ProtocolTypes[node.ConfigType];
 
             switch (node.ConfigType)
             {
@@ -208,7 +208,7 @@ public partial class CoreConfigSingboxService
                             allowed_ips = new() { "0.0.0.0/0", "::/0" },
                         };
                         endpoint.private_key = node.Id;
-                        endpoint.mtu = node.ShortId.IsNullOrEmpty() ? Global.TunMtus.First() : node.ShortId.ToInt();
+                        endpoint.mtu = node.ShortId.IsNullOrEmpty() ? AppConfig.TunMtus.First() : node.ShortId.ToInt();
                         endpoint.peers = new() { peer };
                         break;
                     }
@@ -225,7 +225,7 @@ public partial class CoreConfigSingboxService
     {
         try
         {
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.SingboxSampleOutbound);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleOutbound);
             if (node.ConfigType == EConfigType.WireGuard)
             {
                 var endpoint = JsonUtils.Deserialize<Endpoints4Sbox>(txtOutbound);
@@ -282,7 +282,7 @@ public partial class CoreConfigSingboxService
     {
         try
         {
-            if (node.StreamSecurity is not (Global.StreamSecurityReality or Global.StreamSecurity))
+            if (node.StreamSecurity is not (AppConfig.StreamSecurityReality or AppConfig.StreamSecurity))
             {
                 return await Task.FromResult(0);
             }
@@ -315,7 +315,7 @@ public partial class CoreConfigSingboxService
                     fingerprint = node.Fingerprint.IsNullOrEmpty() ? _config.CoreBasicItem.DefFingerprint : node.Fingerprint
                 };
             }
-            if (node.StreamSecurity == Global.StreamSecurity)
+            if (node.StreamSecurity == AppConfig.StreamSecurity)
             {
                 var certs = CertPemManager.ParsePemChain(node.Cert);
                 if (certs.Count > 0)
@@ -324,7 +324,7 @@ public partial class CoreConfigSingboxService
                     tls.insecure = false;
                 }
             }
-            else if (node.StreamSecurity == Global.StreamSecurityReality)
+            else if (node.StreamSecurity == AppConfig.StreamSecurityReality)
             {
                 tls.reality = new Reality4Sbox()
                 {
@@ -363,7 +363,7 @@ public partial class CoreConfigSingboxService
                     break;
 
                 case nameof(ETransport.tcp):   //http
-                    if (node.HeaderType == Global.TcpHeaderHttp)
+                    if (node.HeaderType == AppConfig.TcpHeaderHttp)
                     {
                         transport.type = nameof(ETransport.http);
                         transport.host = node.RequestHost.IsNullOrEmpty() ? null : Utils.String2List(node.RequestHost);
@@ -433,7 +433,7 @@ public partial class CoreConfigSingboxService
                 default:
                     break;
             }
-            if (transport.type != null)
+            if (transport.type is not null)
             {
                 outbound.transport = transport;
             }
@@ -445,7 +445,7 @@ public partial class CoreConfigSingboxService
         return await Task.FromResult(0);
     }
 
-    private async Task<int> GenGroupOutbound(ProfileItem node, SingboxConfig singboxConfig, string baseTagName = Global.ProxyTag, bool ignoreOriginChain = false)
+    private async Task<int> GenGroupOutbound(ProfileItem node, SingboxConfig singboxConfig, string baseTagName = AppConfig.ProxyTag, bool ignoreOriginChain = false)
     {
         try
         {
@@ -508,18 +508,18 @@ public partial class CoreConfigSingboxService
             }
 
             //current proxy
-            BaseServer4Sbox? outbound = singboxConfig.endpoints?.FirstOrDefault(t => t.tag == Global.ProxyTag, null);
+            BaseServer4Sbox? outbound = singboxConfig.endpoints?.FirstOrDefault(t => t.tag == AppConfig.ProxyTag, null);
             outbound ??= singboxConfig.outbounds.First();
 
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.SingboxSampleOutbound);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleOutbound);
 
             //Previous proxy
             var prevNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.PrevProfile);
             string? prevOutboundTag = null;
             if (prevNode is not null
-                && Global.SingboxSupportConfigType.Contains(prevNode.ConfigType))
+                && AppConfig.SingboxSupportConfigType.Contains(prevNode.ConfigType))
             {
-                prevOutboundTag = $"prev-{Global.ProxyTag}";
+                prevOutboundTag = $"prev-{AppConfig.ProxyTag}";
                 var prevServer = await GenServer(prevNode);
                 prevServer.tag = prevOutboundTag;
                 if (prevServer is Endpoints4Sbox endpoint)
@@ -555,12 +555,12 @@ public partial class CoreConfigSingboxService
         return 0;
     }
 
-    private async Task<int> GenOutboundsListWithChain(List<ProfileItem> nodes, SingboxConfig singboxConfig, EMultipleLoad multipleLoad, string baseTagName = Global.ProxyTag)
+    private async Task<int> GenOutboundsListWithChain(List<ProfileItem> nodes, SingboxConfig singboxConfig, EMultipleLoad multipleLoad, string baseTagName = AppConfig.ProxyTag)
     {
         try
         {
             // Get outbound template and initialize lists
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.SingboxSampleOutbound);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleOutbound);
             if (txtOutbound.IsNullOrEmpty())
             {
                 return 0;
@@ -610,7 +610,7 @@ public partial class CoreConfigSingboxService
                 string? prevTag = null;
                 var currentServer = await GenServer(node);
                 var nextServer = nextProxyCache.GetValueOrDefault(node.Subid, null);
-                if (nextServer != null)
+                if (nextServer is not null)
                 {
                     nextServer = JsonUtils.DeepCopy(nextServer);
                 }
@@ -631,7 +631,7 @@ public partial class CoreConfigSingboxService
                     {
                         var prevNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.PrevProfile);
                         if (prevNode is not null
-                            && Global.SingboxSupportConfigType.Contains(prevNode.ConfigType))
+                            && AppConfig.SingboxSupportConfigType.Contains(prevNode.ConfigType))
                         {
                             var prevOutbound = JsonUtils.Deserialize<Outbound4Sbox>(txtOutbound);
                             await GenOutbound(prevNode, prevOutbound);
@@ -707,7 +707,7 @@ public partial class CoreConfigSingboxService
                 .Concat(resultOutbounds)
                 .Concat(resultEndpoints)
                 .ToList();
-            await AddRangeOutbounds(serverList, singboxConfig, baseTagName == Global.ProxyTag);
+            await AddRangeOutbounds(serverList, singboxConfig, baseTagName == AppConfig.ProxyTag);
         }
         catch (Exception ex)
         {
@@ -721,7 +721,7 @@ public partial class CoreConfigSingboxService
     {
         try
         {
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.SingboxSampleOutbound);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.SingboxSampleOutbound);
 
             if (!prevOutboundTag.IsNullOrEmpty())
             {
@@ -731,7 +731,7 @@ public partial class CoreConfigSingboxService
             // Next proxy
             var nextNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.NextProfile);
             if (nextNode is not null
-                && Global.SingboxSupportConfigType.Contains(nextNode.ConfigType))
+                && AppConfig.SingboxSupportConfigType.Contains(nextNode.ConfigType))
             {
                 nextOutbound ??= await GenServer(nextNode);
                 nextOutbound.tag = outbound.tag;
@@ -748,7 +748,7 @@ public partial class CoreConfigSingboxService
         return null;
     }
 
-    private async Task<int> GenOutboundsList(List<ProfileItem> nodes, SingboxConfig singboxConfig, EMultipleLoad multipleLoad, string baseTagName = Global.ProxyTag)
+    private async Task<int> GenOutboundsList(List<ProfileItem> nodes, SingboxConfig singboxConfig, EMultipleLoad multipleLoad, string baseTagName = AppConfig.ProxyTag)
     {
         var resultOutbounds = new List<Outbound4Sbox>();
         var resultEndpoints = new List<Endpoints4Sbox>(); // For endpoints
@@ -756,7 +756,7 @@ public partial class CoreConfigSingboxService
         for (var i = 0; i < nodes.Count; i++)
         {
             var node = nodes[i];
-            if (node == null)
+            if (node is null)
             {
                 continue;
             }
@@ -830,11 +830,11 @@ public partial class CoreConfigSingboxService
         serverList = serverList.Concat(resultOutbounds)
             .Concat(resultEndpoints)
             .ToList();
-        await AddRangeOutbounds(serverList, singboxConfig, baseTagName == Global.ProxyTag);
+        await AddRangeOutbounds(serverList, singboxConfig, baseTagName == AppConfig.ProxyTag);
         return await Task.FromResult(0);
     }
 
-    private async Task<int> GenChainOutboundsList(List<ProfileItem> nodes, SingboxConfig singboxConfig, string baseTagName = Global.ProxyTag)
+    private async Task<int> GenChainOutboundsList(List<ProfileItem> nodes, SingboxConfig singboxConfig, string baseTagName = AppConfig.ProxyTag)
     {
         // Based on actual network flow instead of data packets
         var nodesReverse = nodes.AsEnumerable().Reverse().ToList();
@@ -877,7 +877,7 @@ public partial class CoreConfigSingboxService
         serverList = serverList.Concat(resultOutbounds)
             .Concat(resultEndpoints)
             .ToList();
-        await AddRangeOutbounds(serverList, singboxConfig, baseTagName == Global.ProxyTag);
+        await AddRangeOutbounds(serverList, singboxConfig, baseTagName == AppConfig.ProxyTag);
         return await Task.FromResult(0);
     }
 

v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxRoutingService.cs

@@ -6,17 +6,17 @@ public partial class CoreConfigSingboxService
     {
         try
         {
-            singboxConfig.route.final = Global.ProxyTag;
+            singboxConfig.route.final = AppConfig.ProxyTag;
             var item = _config.SimpleDNSItem;
 
-            var defaultDomainResolverTag = Global.SingboxDirectDNSTag;
-            var directDNSStrategy = item.SingboxStrategy4Direct.IsNullOrEmpty() ? Global.SingboxDomainStrategy4Out.FirstOrDefault() : item.SingboxStrategy4Direct;
+            var defaultDomainResolverTag = AppConfig.SingboxDirectDNSTag;
+            var directDNSStrategy = item.SingboxStrategy4Direct.IsNullOrEmpty() ? AppConfig.SingboxDomainStrategy4Out.FirstOrDefault() : item.SingboxStrategy4Direct;
 
             var rawDNSItem = await AppManager.Instance.GetDNSItem(ECoreType.sing_box);
-            if (rawDNSItem != null && rawDNSItem.Enabled == true)
+            if (rawDNSItem is not null && rawDNSItem.Enabled == true)
             {
-                defaultDomainResolverTag = Global.SingboxLocalDNSTag;
-                directDNSStrategy = rawDNSItem.DomainStrategy4Freedom.IsNullOrEmpty() ? Global.SingboxDomainStrategy4Out.FirstOrDefault() : rawDNSItem.DomainStrategy4Freedom;
+                defaultDomainResolverTag = AppConfig.SingboxLocalDNSTag;
+                directDNSStrategy = rawDNSItem.DomainStrategy4Freedom.IsNullOrEmpty() ? AppConfig.SingboxDomainStrategy4Out.FirstOrDefault() : rawDNSItem.DomainStrategy4Freedom;
             }
             singboxConfig.route.default_domain_resolver = new()
             {
@@ -28,8 +28,8 @@ public partial class CoreConfigSingboxService
             {
                 singboxConfig.route.auto_detect_interface = true;
 
-                var tunRules = JsonUtils.Deserialize<List<Rule4Sbox>>(EmbedUtils.GetEmbedText(Global.TunSingboxRulesFileName));
-                if (tunRules != null)
+                var tunRules = JsonUtils.Deserialize<List<Rule4Sbox>>(EmbedUtils.GetEmbedText(AppConfig.TunSingboxRulesFileName));
+                if (tunRules is not null)
                 {
                     singboxConfig.route.rules.AddRange(tunRules);
                 }
@@ -44,7 +44,7 @@ public partial class CoreConfigSingboxService
 
                 singboxConfig.route.rules.Add(new()
                 {
-                    outbound = Global.DirectTag,
+                    outbound = AppConfig.DirectTag,
                     process_name = lstDirectExe
                 });
             }
@@ -73,7 +73,7 @@ public partial class CoreConfigSingboxService
 
             var hostsDomains = new List<string>();
             var dnsItem = await AppManager.Instance.GetDNSItem(ECoreType.sing_box);
-            if (dnsItem == null || dnsItem.Enabled == false)
+            if (dnsItem is null || dnsItem.Enabled == false)
             {
                 var simpleDNSItem = _config.SimpleDNSItem;
                 if (!simpleDNSItem.Hosts.IsNullOrEmpty())
@@ -104,12 +104,12 @@ public partial class CoreConfigSingboxService
 
             singboxConfig.route.rules.Add(new()
             {
-                outbound = Global.DirectTag,
+                outbound = AppConfig.DirectTag,
                 clash_mode = ERuleMode.Direct.ToString()
             });
             singboxConfig.route.rules.Add(new()
             {
-                outbound = Global.ProxyTag,
+                outbound = AppConfig.ProxyTag,
                 clash_mode = ERuleMode.Global.ToString()
             });
 
@@ -124,14 +124,14 @@ public partial class CoreConfigSingboxService
                 action = "resolve",
                 strategy = domainStrategy
             };
-            if (_config.RoutingBasicItem.DomainStrategy == Global.IPOnDemand)
+            if (_config.RoutingBasicItem.DomainStrategy == AppConfig.IPOnDemand)
             {
                 singboxConfig.route.rules.Add(resolveRule);
             }
 
             var routing = await ConfigHandler.GetDefaultRouting(_config);
             var ipRules = new List<RulesItem>();
-            if (routing != null)
+            if (routing is not null)
             {
                 var rules = JsonUtils.Deserialize<List<RulesItem>>(routing.RuleSet);
                 foreach (var item1 in rules ?? [])
@@ -154,7 +154,7 @@ public partial class CoreConfigSingboxService
                     }
                 }
             }
-            if (_config.RoutingBasicItem.DomainStrategy == Global.IPIfNonMatch)
+            if (_config.RoutingBasicItem.DomainStrategy == AppConfig.IPIfNonMatch)
             {
                 singboxConfig.route.rules.Add(resolveRule);
                 foreach (var item2 in ipRules)
@@ -202,7 +202,7 @@ public partial class CoreConfigSingboxService
     {
         try
         {
-            if (item == null)
+            if (item is null)
             {
                 return 0;
             }
@@ -326,7 +326,7 @@ public partial class CoreConfigSingboxService
             }
 
             if (!hasDomainIp
-                && (rule.port != null || rule.port_range != null || rule.protocol != null || rule.inbound != null || rule.network != null))
+                && (rule.port is not null || rule.port_range is not null || rule.protocol is not null || rule.inbound is not null || rule.network is not null))
             {
                 rules.Add(rule);
             }
@@ -352,7 +352,7 @@ public partial class CoreConfigSingboxService
         else if (domain.StartsWith("regexp:"))
         {
             rule.domain_regex ??= [];
-            rule.domain_regex?.Add(domain.Replace(Global.RoutingRuleComma, ",").Substring(7));
+            rule.domain_regex?.Add(domain.Replace(AppConfig.RoutingRuleComma, ",").Substring(7));
         }
         else if (domain.StartsWith("domain:"))
         {
@@ -412,23 +412,23 @@ public partial class CoreConfigSingboxService
 
     private async Task<string?> GenRoutingUserRuleOutbound(string outboundTag, SingboxConfig singboxConfig)
     {
-        if (Global.OutboundTags.Contains(outboundTag))
+        if (AppConfig.OutboundTags.Contains(outboundTag))
         {
             return outboundTag;
         }
 
         var node = await AppManager.Instance.GetProfileItemViaRemarks(outboundTag);
 
-        if (node == null
-            || (!Global.SingboxSupportConfigType.Contains(node.ConfigType)
+        if (node is null
+            || (!AppConfig.SingboxSupportConfigType.Contains(node.ConfigType)
             && !node.ConfigType.IsGroupType()))
         {
-            return Global.ProxyTag;
+            return AppConfig.ProxyTag;
         }
 
-        var tag = $"{node.IndexId}-{Global.ProxyTag}";
+        var tag = $"{node.IndexId}-{AppConfig.ProxyTag}";
         if (singboxConfig.outbounds.Any(o => o.tag == tag)
-            || (singboxConfig.endpoints != null && singboxConfig.endpoints.Any(e => e.tag == tag)))
+            || (singboxConfig.endpoints is not null && singboxConfig.endpoints.Any(e => e.tag == tag)))
         {
             return tag;
         }
@@ -440,13 +440,13 @@ public partial class CoreConfigSingboxService
             {
                 return tag;
             }
-            return Global.ProxyTag;
+            return AppConfig.ProxyTag;
         }
 
         var server = await GenServer(node);
         if (server is null)
         {
-            return Global.ProxyTag;
+            return AppConfig.ProxyTag;
         }
 
         server.tag = tag;

v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxRulesetService.cs

@@ -6,7 +6,7 @@ public partial class CoreConfigSingboxService
     {
         static void AddRuleSets(List<string> ruleSets, List<string>? rule_set)
         {
-            if (rule_set != null)
+            if (rule_set is not null)
             {
                 ruleSets.AddRange(rule_set);
             }
@@ -67,9 +67,9 @@ public partial class CoreConfigSingboxService
             if (result.IsNotEmpty())
             {
                 customRulesets = (JsonUtils.Deserialize<List<Ruleset4Sbox>>(result) ?? [])
-                    .Where(t => t.tag != null)
-                    .Where(t => t.type != null)
-                    .Where(t => t.format != null)
+                    .Where(t => t.tag is not null)
+                    .Where(t => t.type is not null)
+                    .Where(t => t.format is not null)
                     .ToList();
             }
         }
@@ -82,8 +82,10 @@ public partial class CoreConfigSingboxService
         foreach (var item in new HashSet<string>(ruleSets))
         {
             if (item.IsNullOrEmpty())
-            { continue; }
-            var customRuleset = customRulesets.FirstOrDefault(t => t.tag != null && t.tag.Equals(item));
+            {
+                continue;
+            }
+            var customRuleset = customRulesets.FirstOrDefault(t => t.tag is not null && t.tag.Equals(item));
             if (customRuleset is null)
             {
                 var pathSrs = Path.Combine(localSrss, $"{item}.srs");
@@ -100,7 +102,7 @@ public partial class CoreConfigSingboxService
                 else
                 {
                     var srsUrl = string.IsNullOrEmpty(_config.ConstItem.SrsSourceUrl)
-                        ? Global.SingboxRulesetUrl
+                        ? AppConfig.SingboxRulesetUrl
                         : _config.ConstItem.SrsSourceUrl;
 
                     customRuleset = new()
@@ -109,7 +111,7 @@ public partial class CoreConfigSingboxService
                         format = "binary",
                         tag = item,
                         url = string.Format(srsUrl, item.StartsWith(geosite) ? geosite : geoip, item),
-                        download_detour = Global.ProxyTag
+                        download_detour = AppConfig.ProxyTag
                     };
                 }
             }

v2rayN/ServiceLib/Services/CoreConfig/Singbox/SingboxStatisticService.cs

@@ -4,12 +4,12 @@ public partial class CoreConfigSingboxService
 {
     private async Task<int> GenExperimental(SingboxConfig singboxConfig)
     {
-        //if (_config.guiItem.enableStatistics)
+        //if (Config.guiItem.enableStatistics)
         {
             singboxConfig.experimental ??= new Experimental4Sbox();
             singboxConfig.experimental.clash_api = new Clash_Api4Sbox()
             {
-                external_controller = $"{Global.Loopback}:{AppManager.Instance.StatePort2}",
+                external_controller = $"{AppConfig.Loopback}:{AppManager.Instance.StatePort2}",
             };
         }
 

v2rayN/ServiceLib/Services/CoreConfig/V2ray/CoreConfigV2rayService.cs

@@ -12,7 +12,7 @@ public partial class CoreConfigV2rayService(Config config)
         var ret = new RetResult();
         try
         {
-            if (node == null
+            if (node is null
                 || !node.IsValid())
             {
                 ret.Msg = ResUI.CheckServerSettings;
@@ -39,7 +39,7 @@ public partial class CoreConfigV2rayService(Config config)
                 }
             }
 
-            var result = EmbedUtils.GetEmbedText(Global.V2raySampleClient);
+            var result = EmbedUtils.GetEmbedText(AppConfig.V2raySampleClient);
             if (result.IsNullOrEmpty())
             {
                 ret.Msg = ResUI.FailedGetDefaultConfiguration;
@@ -47,7 +47,7 @@ public partial class CoreConfigV2rayService(Config config)
             }
 
             var v2rayConfig = JsonUtils.Deserialize<V2rayConfig>(result);
-            if (v2rayConfig == null)
+            if (v2rayConfig is null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -86,7 +86,7 @@ public partial class CoreConfigV2rayService(Config config)
 
         try
         {
-            if (_config == null)
+            if (_config is null)
             {
                 ret.Msg = ResUI.CheckServerSettings;
                 return ret;
@@ -94,8 +94,8 @@ public partial class CoreConfigV2rayService(Config config)
 
             ret.Msg = ResUI.InitialConfiguration;
 
-            var result = EmbedUtils.GetEmbedText(Global.V2raySampleClient);
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
+            var result = EmbedUtils.GetEmbedText(AppConfig.V2raySampleClient);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.V2raySampleOutbound);
             if (result.IsNullOrEmpty() || txtOutbound.IsNullOrEmpty())
             {
                 ret.Msg = ResUI.FailedGetDefaultConfiguration;
@@ -103,7 +103,7 @@ public partial class CoreConfigV2rayService(Config config)
             }
 
             var v2rayConfig = JsonUtils.Deserialize<V2rayConfig>(result);
-            if (v2rayConfig == null)
+            if (v2rayConfig is null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -124,7 +124,7 @@ public partial class CoreConfigV2rayService(Config config)
             await GenDns(null, v2rayConfig);
             await GenStatistic(v2rayConfig);
 
-            var defaultBalancerTag = $"{Global.ProxyTag}{Global.BalancerTagSuffix}";
+            var defaultBalancerTag = $"{AppConfig.ProxyTag}{AppConfig.BalancerTagSuffix}";
 
             //add rule
             var rules = v2rayConfig.routing.rules;
@@ -136,7 +136,7 @@ public partial class CoreConfigV2rayService(Config config)
 
                 foreach (var rule in rules)
                 {
-                    if (rule.outboundTag == null)
+                    if (rule.outboundTag is null)
                     {
                         continue;
                     }
@@ -148,7 +148,7 @@ public partial class CoreConfigV2rayService(Config config)
                         continue;
                     }
 
-                    var outboundWithSuffix = rule.outboundTag + Global.BalancerTagSuffix;
+                    var outboundWithSuffix = rule.outboundTag + AppConfig.BalancerTagSuffix;
                     if (balancerTagSet.Contains(outboundWithSuffix))
                     {
                         rule.balancerTag = outboundWithSuffix;
@@ -156,7 +156,7 @@ public partial class CoreConfigV2rayService(Config config)
                     }
                 }
             }
-            if (v2rayConfig.routing.domainStrategy == Global.IPIfNonMatch)
+            if (v2rayConfig.routing.domainStrategy == AppConfig.IPIfNonMatch)
             {
                 v2rayConfig.routing.rules.Add(new()
                 {
@@ -194,7 +194,7 @@ public partial class CoreConfigV2rayService(Config config)
 
         try
         {
-            if (_config == null)
+            if (_config is null)
             {
                 ret.Msg = ResUI.CheckServerSettings;
                 return ret;
@@ -202,8 +202,8 @@ public partial class CoreConfigV2rayService(Config config)
 
             ret.Msg = ResUI.InitialConfiguration;
 
-            var result = EmbedUtils.GetEmbedText(Global.V2raySampleClient);
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
+            var result = EmbedUtils.GetEmbedText(AppConfig.V2raySampleClient);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.V2raySampleOutbound);
             if (result.IsNullOrEmpty() || txtOutbound.IsNullOrEmpty())
             {
                 ret.Msg = ResUI.FailedGetDefaultConfiguration;
@@ -211,7 +211,7 @@ public partial class CoreConfigV2rayService(Config config)
             }
 
             var v2rayConfig = JsonUtils.Deserialize<V2rayConfig>(result);
-            if (v2rayConfig == null)
+            if (v2rayConfig is null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -250,7 +250,7 @@ public partial class CoreConfigV2rayService(Config config)
         var ret = new RetResult();
         try
         {
-            if (_config == null)
+            if (_config is null)
             {
                 ret.Msg = ResUI.CheckServerSettings;
                 return ret;
@@ -258,8 +258,8 @@ public partial class CoreConfigV2rayService(Config config)
 
             ret.Msg = ResUI.InitialConfiguration;
 
-            var result = EmbedUtils.GetEmbedText(Global.V2raySampleClient);
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
+            var result = EmbedUtils.GetEmbedText(AppConfig.V2raySampleClient);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.V2raySampleOutbound);
             if (result.IsNullOrEmpty() || txtOutbound.IsNullOrEmpty())
             {
                 ret.Msg = ResUI.FailedGetDefaultConfiguration;
@@ -267,7 +267,7 @@ public partial class CoreConfigV2rayService(Config config)
             }
 
             var v2rayConfig = JsonUtils.Deserialize<V2rayConfig>(result);
-            if (v2rayConfig == null)
+            if (v2rayConfig is null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -294,7 +294,7 @@ public partial class CoreConfigV2rayService(Config config)
 
             foreach (var it in selecteds)
             {
-                if (!Global.XraySupportConfigType.Contains(it.ConfigType))
+                if (!AppConfig.XraySupportConfigType.Contains(it.ConfigType))
                 {
                     continue;
                 }
@@ -310,7 +310,7 @@ public partial class CoreConfigV2rayService(Config config)
 
                 //find unused port
                 var port = initPort;
-                for (var k = initPort; k < Global.MaxPort; k++)
+                for (var k = initPort; k < AppConfig.MaxPort; k++)
                 {
                     if (lstIpEndPoints?.FindIndex(_it => _it.Port == k) >= 0)
                     {
@@ -337,7 +337,7 @@ public partial class CoreConfigV2rayService(Config config)
                 //inbound
                 Inbounds4Ray inbound = new()
                 {
-                    listen = Global.Loopback,
+                    listen = AppConfig.Loopback,
                     port = port,
                     protocol = EInboundProtocol.mixed.ToString(),
                 };
@@ -347,7 +347,7 @@ public partial class CoreConfigV2rayService(Config config)
                 //outbound
                 var outbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
                 await GenOutbound(item, outbound);
-                outbound.tag = Global.ProxyTag + inbound.port.ToString();
+                outbound.tag = AppConfig.ProxyTag + inbound.port.ToString();
                 v2rayConfig.outbounds.Add(outbound);
 
                 //rule
@@ -378,7 +378,7 @@ public partial class CoreConfigV2rayService(Config config)
         var ret = new RetResult();
         try
         {
-            if (node == null
+            if (node is null
                 || !node.IsValid())
             {
                 ret.Msg = ResUI.CheckServerSettings;
@@ -391,7 +391,7 @@ public partial class CoreConfigV2rayService(Config config)
                 return ret;
             }
 
-            var result = EmbedUtils.GetEmbedText(Global.V2raySampleClient);
+            var result = EmbedUtils.GetEmbedText(AppConfig.V2raySampleClient);
             if (result.IsNullOrEmpty())
             {
                 ret.Msg = ResUI.FailedGetDefaultConfiguration;
@@ -399,7 +399,7 @@ public partial class CoreConfigV2rayService(Config config)
             }
 
             var v2rayConfig = JsonUtils.Deserialize<V2rayConfig>(result);
-            if (v2rayConfig == null)
+            if (v2rayConfig is null)
             {
                 ret.Msg = ResUI.FailedGenDefaultConfiguration;
                 return ret;
@@ -414,7 +414,7 @@ public partial class CoreConfigV2rayService(Config config)
             v2rayConfig.inbounds.Add(new()
             {
                 tag = $"{EInboundProtocol.socks}{port}",
-                listen = Global.Loopback,
+                listen = AppConfig.Loopback,
                 port = port,
                 protocol = EInboundProtocol.mixed.ToString(),
             });

v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayBalancerService.cs

@@ -2,7 +2,7 @@ namespace ServiceLib.Services.CoreConfig;
 
 public partial class CoreConfigV2rayService
 {
-    private async Task<int> GenObservatory(V2rayConfig v2rayConfig, EMultipleLoad multipleLoad, string baseTagName = Global.ProxyTag)
+    private async Task<int> GenObservatory(V2rayConfig v2rayConfig, EMultipleLoad multipleLoad, string baseTagName = AppConfig.ProxyTag)
     {
         // Collect all existing subject selectors from both observatories
         var subjectSelectors = new List<string>();
@@ -83,7 +83,7 @@ public partial class CoreConfigV2rayService
         return await Task.FromResult(0);
     }
 
-    private async Task<string> GenBalancer(V2rayConfig v2rayConfig, EMultipleLoad multipleLoad, string selector = Global.ProxyTag)
+    private async Task<string> GenBalancer(V2rayConfig v2rayConfig, EMultipleLoad multipleLoad, string selector = AppConfig.ProxyTag)
     {
         var strategyType = multipleLoad switch
         {
@@ -93,7 +93,7 @@ public partial class CoreConfigV2rayService
             EMultipleLoad.LeastLoad => "leastLoad",
             _ => "roundRobin",
         };
-        var balancerTag = $"{selector}{Global.BalancerTagSuffix}";
+        var balancerTag = $"{selector}{AppConfig.BalancerTagSuffix}";
         var balancer = new BalancersItem4Ray
         {
             selector = [selector],

v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayConfigTemplateService.cs

@@ -5,13 +5,13 @@ public partial class CoreConfigV2rayService
     private async Task<string> ApplyFullConfigTemplate(V2rayConfig v2rayConfig)
     {
         var fullConfigTemplate = await AppManager.Instance.GetFullConfigTemplateItem(ECoreType.Xray);
-        if (fullConfigTemplate == null || !fullConfigTemplate.Enabled || fullConfigTemplate.Config.IsNullOrEmpty())
+        if (fullConfigTemplate is null || !fullConfigTemplate.Enabled || fullConfigTemplate.Config.IsNullOrEmpty())
         {
             return JsonUtils.Serialize(v2rayConfig);
         }
 
         var fullConfigTemplateNode = JsonNode.Parse(fullConfigTemplate.Config);
-        if (fullConfigTemplateNode == null)
+        if (fullConfigTemplateNode is null)
         {
             return JsonUtils.Serialize(v2rayConfig);
         }
@@ -23,11 +23,11 @@ public partial class CoreConfigV2rayService
 
             // Modify existing rules in custom config
             var rulesNode = fullConfigTemplateNode["routing"]?["rules"];
-            if (rulesNode != null)
+            if (rulesNode is not null)
             {
                 foreach (var rule in rulesNode.AsArray())
                 {
-                    if (rule["outboundTag"]?.GetValue<string>() == Global.ProxyTag)
+                    if (rule["outboundTag"]?.GetValue<string>() == AppConfig.ProxyTag)
                     {
                         rule.AsObject().Remove("outboundTag");
                         rule["balancerTag"] = balancer.tag;
@@ -36,7 +36,7 @@ public partial class CoreConfigV2rayService
             }
 
             // Ensure routing node exists
-            if (fullConfigTemplateNode["routing"] == null)
+            if (fullConfigTemplateNode["routing"] is null)
             {
                 fullConfigTemplateNode["routing"] = new JsonObject();
             }
@@ -58,9 +58,9 @@ public partial class CoreConfigV2rayService
             }
         }
 
-        if (v2rayConfig.observatory != null)
+        if (v2rayConfig.observatory is not null)
         {
-            if (fullConfigTemplateNode["observatory"] == null)
+            if (fullConfigTemplateNode["observatory"] is null)
             {
                 fullConfigTemplateNode["observatory"] = JsonNode.Parse(JsonUtils.Serialize(v2rayConfig.observatory));
             }
@@ -72,9 +72,9 @@ public partial class CoreConfigV2rayService
             }
         }
 
-        if (v2rayConfig.burstObservatory != null)
+        if (v2rayConfig.burstObservatory is not null)
         {
-            if (fullConfigTemplateNode["burstObservatory"] == null)
+            if (fullConfigTemplateNode["burstObservatory"] is null)
             {
                 fullConfigTemplateNode["burstObservatory"] = JsonNode.Parse(JsonUtils.Serialize(v2rayConfig.burstObservatory));
             }

v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayDnsService.cs

@@ -7,19 +7,19 @@ public partial class CoreConfigV2rayService
         try
         {
             var item = await AppManager.Instance.GetDNSItem(ECoreType.Xray);
-            if (item != null && item.Enabled == true)
+            if (item is not null && item.Enabled == true)
             {
                 var result = await GenDnsCompatible(node, v2rayConfig);
 
-                if (v2rayConfig.routing.domainStrategy == Global.IPIfNonMatch)
+                if (v2rayConfig.routing.domainStrategy == AppConfig.IPIfNonMatch)
                 {
                     // DNS routing
-                    v2rayConfig.dns.tag = Global.DnsTag;
+                    v2rayConfig.dns.tag = AppConfig.DnsTag;
                     v2rayConfig.routing.rules.Add(new RulesItem4Ray
                     {
                         type = "field",
-                        inboundTag = new List<string> { Global.DnsTag },
-                        outboundTag = Global.ProxyTag,
+                        inboundTag = new List<string> { AppConfig.DnsTag },
+                        outboundTag = AppConfig.ProxyTag,
                     });
                 }
 
@@ -31,29 +31,26 @@ public partial class CoreConfigV2rayService
             //Outbound Freedom domainStrategy
             if (domainStrategy4Freedom.IsNotEmpty())
             {
-                var outbound = v2rayConfig.outbounds.FirstOrDefault(t => t is { protocol: "freedom", tag: Global.DirectTag });
-                if (outbound != null)
+                var outbound = v2rayConfig.outbounds.FirstOrDefault(t => t is { protocol: "freedom", tag: AppConfig.DirectTag });
+                outbound?.settings = new()
                 {
-                    outbound.settings = new()
-                    {
-                        domainStrategy = domainStrategy4Freedom,
-                        userLevel = 0
-                    };
-                }
+                    domainStrategy = domainStrategy4Freedom,
+                    userLevel = 0
+                };
             }
 
             await GenDnsServers(node, v2rayConfig, simpleDNSItem);
             await GenDnsHosts(v2rayConfig, simpleDNSItem);
 
-            if (v2rayConfig.routing.domainStrategy == Global.IPIfNonMatch)
+            if (v2rayConfig.routing.domainStrategy == AppConfig.IPIfNonMatch)
             {
                 // DNS routing
-                v2rayConfig.dns.tag = Global.DnsTag;
+                v2rayConfig.dns.tag = AppConfig.DnsTag;
                 v2rayConfig.routing.rules.Add(new RulesItem4Ray
                 {
                     type = "field",
-                    inboundTag = new List<string> { Global.DnsTag },
-                    outboundTag = Global.ProxyTag,
+                    inboundTag = new List<string> { AppConfig.DnsTag },
+                    outboundTag = AppConfig.ProxyTag,
                 });
             }
         }
@@ -106,8 +103,8 @@ public partial class CoreConfigV2rayService
             });
         }
 
-        var directDNSAddress = ParseDnsAddresses(simpleDNSItem?.DirectDNS, Global.DomainDirectDNSAddress.FirstOrDefault());
-        var remoteDNSAddress = ParseDnsAddresses(simpleDNSItem?.RemoteDNS, Global.DomainRemoteDNSAddress.FirstOrDefault());
+        var directDNSAddress = ParseDnsAddresses(simpleDNSItem?.DirectDNS, AppConfig.DomainDirectDNSAddress.FirstOrDefault());
+        var remoteDNSAddress = ParseDnsAddresses(simpleDNSItem?.RemoteDNS, AppConfig.DomainRemoteDNSAddress.FirstOrDefault());
 
         var directDomainList = new List<string>();
         var directGeositeList = new List<string>();
@@ -117,7 +114,7 @@ public partial class CoreConfigV2rayService
         var expectedIPs = new List<string>();
         var regionNames = new HashSet<string>();
 
-        var bootstrapDNSAddress = ParseDnsAddresses(simpleDNSItem?.BootstrapDNS, Global.DomainPureIPDNSAddress.FirstOrDefault());
+        var bootstrapDNSAddress = ParseDnsAddresses(simpleDNSItem?.BootstrapDNS, AppConfig.DomainPureIPDNSAddress.FirstOrDefault());
         var dnsServerDomains = new List<string>();
 
         foreach (var dns in directDNSAddress)
@@ -171,7 +168,7 @@ public partial class CoreConfigV2rayService
 
         var routing = await ConfigHandler.GetDefaultRouting(_config);
         List<RulesItem>? rules = null;
-        if (routing != null)
+        if (routing is not null)
         {
             rules = JsonUtils.Deserialize<List<RulesItem>>(routing.RuleSet) ?? [];
             foreach (var item in rules)
@@ -193,9 +190,9 @@ public partial class CoreConfigV2rayService
                         continue;
                     }
 
-                    var normalizedDomain = domain.Replace(Global.RoutingRuleComma, ",");
+                    var normalizedDomain = domain.Replace(AppConfig.RoutingRuleComma, ",");
 
-                    if (item.OutboundTag == Global.DirectTag)
+                    if (item.OutboundTag == AppConfig.DirectTag)
                     {
                         if (normalizedDomain.StartsWith("geosite:") || normalizedDomain.StartsWith("ext:"))
                         {
@@ -206,7 +203,7 @@ public partial class CoreConfigV2rayService
                             directDomainList.Add(normalizedDomain);
                         }
                     }
-                    else if (item.OutboundTag != Global.BlockTag)
+                    else if (item.OutboundTag != AppConfig.BlockTag)
                     {
                         if (normalizedDomain.StartsWith("geosite:") || normalizedDomain.StartsWith("ext:"))
                         {
@@ -235,7 +232,7 @@ public partial class CoreConfigV2rayService
                 {
                     var profileNode = await AppManager.Instance.GetProfileItemViaRemarks(profile);
                     if (profileNode is not null
-                        && Global.XraySupportConfigType.Contains(profileNode.ConfigType)
+                        && AppConfig.XraySupportConfigType.Contains(profileNode.ConfigType)
                         && Utils.IsDomain(profileNode.Address))
                     {
                         directDomainList.Add(profileNode.Address);
@@ -269,7 +266,7 @@ public partial class CoreConfigV2rayService
         }
 
         var useDirectDns = rules?.LastOrDefault() is { } lastRule
-            && lastRule.OutboundTag == Global.DirectTag
+            && lastRule.OutboundTag == AppConfig.DirectTag
             && (lastRule.Port == "0-65535"
                 || lastRule.Network == "tcp,udp"
                 || lastRule.Ip?.Contains("0.0.0.0/0") == true);
@@ -280,7 +277,7 @@ public partial class CoreConfigV2rayService
         return 0;
     }
 
-    private async Task<int> GenDnsHosts(V2rayConfig v2rayConfig, SimpleDNSItem simpleDNSItem)
+    private static async Task<int> GenDnsHosts(V2rayConfig v2rayConfig, SimpleDNSItem simpleDNSItem)
     {
         if (simpleDNSItem.AddCommonHosts == false && simpleDNSItem.UseSystemHosts == false && simpleDNSItem.Hosts.IsNullOrEmpty())
         {
@@ -290,7 +287,7 @@ public partial class CoreConfigV2rayService
         v2rayConfig.dns.hosts ??= new Dictionary<string, object>();
         if (simpleDNSItem.AddCommonHosts == true)
         {
-            v2rayConfig.dns.hosts = Global.PredefinedHosts.ToDictionary(
+            v2rayConfig.dns.hosts = AppConfig.PredefinedHosts.ToDictionary(
                 kvp => kvp.Key,
                 kvp => (object)kvp.Value
             );
@@ -301,7 +298,7 @@ public partial class CoreConfigV2rayService
             var systemHosts = Utils.GetSystemHosts();
             var normalHost = v2rayConfig?.dns?.hosts;
 
-            if (normalHost != null && systemHosts?.Count > 0)
+            if (normalHost is not null && systemHosts?.Count > 0)
             {
                 foreach (var host in systemHosts)
                 {
@@ -331,19 +328,18 @@ public partial class CoreConfigV2rayService
             var domainStrategy4Freedom = item?.DomainStrategy4Freedom;
             if (normalDNS.IsNullOrEmpty())
             {
-                normalDNS = EmbedUtils.GetEmbedText(Global.DNSV2rayNormalFileName);
+                normalDNS = EmbedUtils.GetEmbedText(AppConfig.DNSV2rayNormalFileName);
             }
 
             //Outbound Freedom domainStrategy
             if (domainStrategy4Freedom.IsNotEmpty())
             {
-                var outbound = v2rayConfig.outbounds.FirstOrDefault(t => t is { protocol: "freedom", tag: Global.DirectTag });
-                if (outbound != null)
-                {
-                    outbound.settings = new();
-                    outbound.settings.domainStrategy = domainStrategy4Freedom;
-                    outbound.settings.userLevel = 0;
-                }
+                var outbound = v2rayConfig.outbounds.FirstOrDefault(t => t is { protocol: "freedom", tag: AppConfig.DirectTag });
+                outbound?.settings = new()
+                    {
+                        domainStrategy = domainStrategy4Freedom,
+                        userLevel = 0
+                    };
             }
 
             var obj = JsonUtils.ParseJson(normalDNS);
@@ -366,11 +362,11 @@ public partial class CoreConfigV2rayService
                 if (systemHosts.Count > 0)
                 {
                     var normalHost1 = obj["hosts"];
-                    if (normalHost1 != null)
+                    if (normalHost1 is not null)
                     {
                         foreach (var host in systemHosts)
                         {
-                            if (normalHost1[host.Key] != null)
+                            if (normalHost1[host.Key] is not null)
                             {
                                 continue;
                             }
@@ -381,7 +377,7 @@ public partial class CoreConfigV2rayService
                 }
             }
             var normalHost = obj["hosts"];
-            if (normalHost != null)
+            if (normalHost is not null)
             {
                 foreach (var hostProp in normalHost.AsObject().ToList())
                 {
@@ -403,14 +399,14 @@ public partial class CoreConfigV2rayService
         return 0;
     }
 
-    private async Task<int> GenDnsDomainsCompatible(ProfileItem? node, JsonNode dns, DNSItem? dnsItem)
+    private static async Task<int> GenDnsDomainsCompatible(ProfileItem? node, JsonNode dns, DNSItem? dnsItem)
     {
-        if (node == null)
+        if (node is null)
         {
             return 0;
         }
         var servers = dns["servers"];
-        if (servers != null)
+        if (servers is not null)
         {
             var domainList = new List<string>();
             if (Utils.IsDomain(node.Address))
@@ -423,7 +419,7 @@ public partial class CoreConfigV2rayService
                 // Previous proxy
                 var prevNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.PrevProfile);
                 if (prevNode is not null
-                    && Global.SingboxSupportConfigType.Contains(prevNode.ConfigType)
+                    && AppConfig.SingboxSupportConfigType.Contains(prevNode.ConfigType)
                     && Utils.IsDomain(prevNode.Address))
                 {
                     domainList.Add(prevNode.Address);
@@ -432,7 +428,7 @@ public partial class CoreConfigV2rayService
                 // Next proxy
                 var nextNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.NextProfile);
                 if (nextNode is not null
-                    && Global.SingboxSupportConfigType.Contains(nextNode.ConfigType)
+                    && AppConfig.SingboxSupportConfigType.Contains(nextNode.ConfigType)
                     && Utils.IsDomain(nextNode.Address))
                 {
                     domainList.Add(nextNode.Address);
@@ -442,7 +438,7 @@ public partial class CoreConfigV2rayService
             {
                 var dnsServer = new DnsServer4Ray()
                 {
-                    address = string.IsNullOrEmpty(dnsItem?.DomainDNSAddress) ? Global.DomainPureIPDNSAddress.FirstOrDefault() : dnsItem?.DomainDNSAddress,
+                    address = string.IsNullOrEmpty(dnsItem?.DomainDNSAddress) ? AppConfig.DomainPureIPDNSAddress.FirstOrDefault() : dnsItem?.DomainDNSAddress,
                     skipFallback = true,
                     domains = domainList
                 };

v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayInboundService.cs

@@ -30,7 +30,7 @@ public partial class CoreConfigV2rayService
                     if (_config.Inbound.First().User.IsNotEmpty() && _config.Inbound.First().Pass.IsNotEmpty())
                     {
                         inbound3.settings.auth = "password";
-                        inbound3.settings.accounts = new List<AccountsItem4Ray> { new AccountsItem4Ray() { user = _config.Inbound.First().User, pass = _config.Inbound.First().Pass } };
+                        inbound3.settings.accounts = new List<AccountsItem4Ray> { new() { user = _config.Inbound.First().User, pass = _config.Inbound.First().Pass } };
                     }
                 }
                 else
@@ -48,14 +48,14 @@ public partial class CoreConfigV2rayService
 
     private Inbounds4Ray GetInbound(InItem inItem, EInboundProtocol protocol, bool bSocks)
     {
-        var result = EmbedUtils.GetEmbedText(Global.V2raySampleInbound);
+        var result = EmbedUtils.GetEmbedText(AppConfig.V2raySampleInbound);
         if (result.IsNullOrEmpty())
         {
             return new();
         }
 
         var inbound = JsonUtils.Deserialize<Inbounds4Ray>(result);
-        if (inbound == null)
+        if (inbound is null)
         {
             return new();
         }

v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayOutboundService.cs

@@ -37,14 +37,14 @@ public partial class CoreConfigV2rayService
 
                         usersItem.id = node.Id;
                         usersItem.alterId = node.AlterId;
-                        usersItem.email = Global.UserEMail;
-                        if (Global.VmessSecurities.Contains(node.Security))
+                        usersItem.email = AppConfig.UserEMail;
+                        if (AppConfig.VmessSecurities.Contains(node.Security))
                         {
                             usersItem.security = node.Security;
                         }
                         else
                         {
-                            usersItem.security = Global.DefaultSecurity;
+                            usersItem.security = AppConfig.DefaultSecurity;
                         }
 
                         await GenOutboundMux(node, outbound, muxEnabled, muxEnabled);
@@ -139,7 +139,7 @@ public partial class CoreConfigV2rayService
                             usersItem = vnextItem.users.First();
                         }
                         usersItem.id = node.Id;
-                        usersItem.email = Global.UserEMail;
+                        usersItem.email = AppConfig.UserEMail;
                         usersItem.encryption = node.Security;
 
                         if (node.Flow.IsNullOrEmpty())
@@ -185,9 +185,9 @@ public partial class CoreConfigV2rayService
                             version = 2,
                             address = node.Address,
                             port = node.Port,
+                            vnext = null,
+                            servers = null
                         };
-                        outbound.settings.vnext = null;
-                        outbound.settings.servers = null;
                         break;
                     }
                 case EConfigType.WireGuard:
@@ -207,7 +207,7 @@ public partial class CoreConfigV2rayService
                             address = Utils.String2List(node.RequestHost),
                             secretKey = node.Id,
                             reserved = Utils.String2List(node.Path)?.Select(int.Parse).ToList(),
-                            mtu = node.ShortId.IsNullOrEmpty() ? Global.TunMtus.First() : node.ShortId.ToInt(),
+                            mtu = node.ShortId.IsNullOrEmpty() ? AppConfig.TunMtus.First() : node.ShortId.ToInt(),
                             peers = new List<WireguardPeer4Ray> { peer }
                         };
                         outbound.settings = setting;
@@ -217,7 +217,7 @@ public partial class CoreConfigV2rayService
                     }
             }
 
-            outbound.protocol = Global.ProtocolTypes[node.ConfigType];
+            outbound.protocol = AppConfig.ProtocolTypes[node.ConfigType];
             if (node.ConfigType == EConfigType.Hysteria2)
             {
                 outbound.protocol = "hysteria";
@@ -268,15 +268,15 @@ public partial class CoreConfigV2rayService
                 network = "hysteria";
             }
             streamSettings.network = network;
-            var host = node.RequestHost.TrimEx();
-            var path = node.Path.TrimEx();
-            var sni = node.Sni.TrimEx();
+            var host = node.RequestHost.TrimSafe();
+            var path = node.Path.TrimSafe();
+            var sni = node.Sni.TrimSafe();
             var useragent = "";
             if (!_config.CoreBasicItem.DefUserAgent.IsNullOrEmpty())
             {
                 try
                 {
-                    useragent = Global.UserAgentTexts[_config.CoreBasicItem.DefUserAgent];
+                    useragent = AppConfig.UserAgentTexts[_config.CoreBasicItem.DefUserAgent];
                 }
                 catch (KeyNotFoundException)
                 {
@@ -285,7 +285,7 @@ public partial class CoreConfigV2rayService
             }
 
             //if tls
-            if (node.StreamSecurity == Global.StreamSecurity)
+            if (node.StreamSecurity == AppConfig.StreamSecurity)
             {
                 streamSettings.security = node.StreamSecurity;
 
@@ -330,7 +330,7 @@ public partial class CoreConfigV2rayService
             }
 
             //if Reality
-            if (node.StreamSecurity == Global.StreamSecurityReality)
+            if (node.StreamSecurity == AppConfig.StreamSecurityReality)
             {
                 streamSettings.security = node.StreamSecurity;
 
@@ -355,19 +355,18 @@ public partial class CoreConfigV2rayService
                     KcpSettings4Ray kcpSettings = new()
                     {
                         mtu = _config.KcpItem.Mtu,
-                        tti = _config.KcpItem.Tti
-                    };
+                        tti = _config.KcpItem.Tti,
+                        uplinkCapacity = _config.KcpItem.UplinkCapacity,
+                        downlinkCapacity = _config.KcpItem.DownlinkCapacity,
 
-                    kcpSettings.uplinkCapacity = _config.KcpItem.UplinkCapacity;
-                    kcpSettings.downlinkCapacity = _config.KcpItem.DownlinkCapacity;
-
-                    kcpSettings.congestion = _config.KcpItem.Congestion;
-                    kcpSettings.readBufferSize = _config.KcpItem.ReadBufferSize;
-                    kcpSettings.writeBufferSize = _config.KcpItem.WriteBufferSize;
-                    kcpSettings.header = new Header4Ray
-                    {
-                        type = node.HeaderType,
-                        domain = host.NullIfEmpty()
+                        congestion = _config.KcpItem.Congestion,
+                        readBufferSize = _config.KcpItem.ReadBufferSize,
+                        writeBufferSize = _config.KcpItem.WriteBufferSize,
+                        header = new Header4Ray
+                        {
+                            type = node.HeaderType,
+                            domain = host.NullIfEmpty()
+                        }
                     };
                     if (path.IsNotEmpty())
                     {
@@ -377,8 +376,10 @@ public partial class CoreConfigV2rayService
                     break;
                 //ws
                 case nameof(ETransport.ws):
-                    WsSettings4Ray wsSettings = new();
-                    wsSettings.headers = new Headers4Ray();
+                    WsSettings4Ray wsSettings = new()
+                    {
+                        headers = new Headers4Ray()
+                    };
 
                     if (host.IsNotEmpty())
                     {
@@ -423,7 +424,7 @@ public partial class CoreConfigV2rayService
                     {
                         xhttpSettings.host = host;
                     }
-                    if (node.HeaderType.IsNotEmpty() && Global.XhttpMode.Contains(node.HeaderType))
+                    if (node.HeaderType.IsNotEmpty() && AppConfig.XhttpMode.Contains(node.HeaderType))
                     {
                         xhttpSettings.mode = node.HeaderType;
                     }
@@ -461,7 +462,7 @@ public partial class CoreConfigV2rayService
                         }
                     };
                     streamSettings.quicSettings = quicsettings;
-                    if (node.StreamSecurity == Global.StreamSecurity)
+                    if (node.StreamSecurity == AppConfig.StreamSecurity)
                     {
                         if (sni.IsNotEmpty())
                         {
@@ -479,7 +480,7 @@ public partial class CoreConfigV2rayService
                     {
                         authority = host.NullIfEmpty(),
                         serviceName = path,
-                        multiMode = node.HeaderType == Global.GrpcMultiMode,
+                        multiMode = node.HeaderType == AppConfig.GrpcMultiMode,
                         idle_timeout = _config.GrpcItem.IdleTimeout,
                         health_check_timeout = _config.GrpcItem.HealthCheckTimeout,
                         permit_without_stream = _config.GrpcItem.PermitWithoutStream,
@@ -513,13 +514,13 @@ public partial class CoreConfigV2rayService
                     if (node.Path.IsNotEmpty())
                     {
                         streamSettings.udpmasks =
-                            [new() { type = "salamander", settings = new() { password = node.Path.TrimEx(), } }];
+                            [new() { type = "salamander", settings = new() { password = node.Path.TrimSafe(), } }];
                     }
                     break;
 
                 default:
                     //tcp
-                    if (node.HeaderType == Global.TcpHeaderHttp)
+                    if (node.HeaderType == AppConfig.TcpHeaderHttp)
                     {
                         TcpSettings4Ray tcpSettings = new()
                         {
@@ -530,7 +531,7 @@ public partial class CoreConfigV2rayService
                         };
 
                         //request Host
-                        var request = EmbedUtils.GetEmbedText(Global.V2raySampleHttpRequestFileName);
+                        var request = EmbedUtils.GetEmbedText(AppConfig.V2raySampleHttpRequestFileName);
                         var arrHost = host.Split(',');
                         var host2 = string.Join(",".AppendQuotes(), arrHost);
                         request = request.Replace("$requestHost$", $"{host2.AppendQuotes()}");
@@ -557,7 +558,7 @@ public partial class CoreConfigV2rayService
         return 0;
     }
 
-    private async Task<int> GenGroupOutbound(ProfileItem node, V2rayConfig v2rayConfig, string baseTagName = Global.ProxyTag, bool ignoreOriginChain = false)
+    private async Task<int> GenGroupOutbound(ProfileItem node, V2rayConfig v2rayConfig, string baseTagName = AppConfig.ProxyTag, bool ignoreOriginChain = false)
     {
         try
         {
@@ -620,7 +621,7 @@ public partial class CoreConfigV2rayService
             var fragmentOutbound = new Outbounds4Ray
             {
                 protocol = "freedom",
-                tag = $"frag-{Global.ProxyTag}",
+                tag = $"frag-{AppConfig.ProxyTag}",
                 settings = new()
                 {
                     fragment = new()
@@ -654,17 +655,17 @@ public partial class CoreConfigV2rayService
 
             //current proxy
             var outbound = v2rayConfig.outbounds.First();
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.V2raySampleOutbound);
 
             //Previous proxy
             var prevNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.PrevProfile);
             string? prevOutboundTag = null;
             if (prevNode is not null
-                && Global.XraySupportConfigType.Contains(prevNode.ConfigType))
+                && AppConfig.XraySupportConfigType.Contains(prevNode.ConfigType))
             {
                 var prevOutbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
                 await GenOutbound(prevNode, prevOutbound);
-                prevOutboundTag = $"prev-{Global.ProxyTag}";
+                prevOutboundTag = $"prev-{AppConfig.ProxyTag}";
                 prevOutbound.tag = prevOutboundTag;
                 v2rayConfig.outbounds.Add(prevOutbound);
             }
@@ -683,12 +684,12 @@ public partial class CoreConfigV2rayService
         return 0;
     }
 
-    private async Task<int> GenOutboundsListWithChain(List<ProfileItem> nodes, V2rayConfig v2rayConfig, string baseTagName = Global.ProxyTag)
+    private async Task<int> GenOutboundsListWithChain(List<ProfileItem> nodes, V2rayConfig v2rayConfig, string baseTagName = AppConfig.ProxyTag)
     {
         try
         {
             // Get template and initialize list
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.V2raySampleOutbound);
             if (txtOutbound.IsNullOrEmpty())
             {
                 return 0;
@@ -731,7 +732,7 @@ public partial class CoreConfigV2rayService
                 string? prevTag = null;
                 var currentOutbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
                 var nextOutbound = nextProxyCache.GetValueOrDefault(node.Subid, null);
-                if (nextOutbound != null)
+                if (nextOutbound is not null)
                 {
                     nextOutbound = JsonUtils.DeepCopy(nextOutbound);
                 }
@@ -752,7 +753,7 @@ public partial class CoreConfigV2rayService
                     {
                         var prevNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.PrevProfile);
                         if (prevNode is not null
-                            && Global.XraySupportConfigType.Contains(prevNode.ConfigType))
+                            && AppConfig.XraySupportConfigType.Contains(prevNode.ConfigType))
                         {
                             var prevOutbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
                             await GenOutbound(prevNode, prevOutbound);
@@ -778,7 +779,7 @@ public partial class CoreConfigV2rayService
             }
 
             // Merge results: first the main chain outbounds, then other outbounds, and finally utility outbounds
-            if (baseTagName == Global.ProxyTag)
+            if (baseTagName == AppConfig.ProxyTag)
             {
                 resultOutbounds.AddRange(prevOutbounds);
                 resultOutbounds.AddRange(v2rayConfig.outbounds);
@@ -814,7 +815,7 @@ public partial class CoreConfigV2rayService
     {
         try
         {
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.V2raySampleOutbound);
 
             if (!prevOutboundTag.IsNullOrEmpty())
             {
@@ -827,9 +828,9 @@ public partial class CoreConfigV2rayService
             // Next proxy
             var nextNode = await AppManager.Instance.GetProfileItemViaRemarks(subItem.NextProfile);
             if (nextNode is not null
-                && Global.XraySupportConfigType.Contains(nextNode.ConfigType))
+                && AppConfig.XraySupportConfigType.Contains(nextNode.ConfigType))
             {
-                if (nextOutbound == null)
+                if (nextOutbound is null)
                 {
                     nextOutbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
                     await GenOutbound(nextNode, nextOutbound);
@@ -851,13 +852,13 @@ public partial class CoreConfigV2rayService
         return null;
     }
 
-    private async Task<int> GenOutboundsList(List<ProfileItem> nodes, V2rayConfig v2rayConfig, string baseTagName = Global.ProxyTag)
+    private async Task<int> GenOutboundsList(List<ProfileItem> nodes, V2rayConfig v2rayConfig, string baseTagName = AppConfig.ProxyTag)
     {
         var resultOutbounds = new List<Outbounds4Ray>();
         for (var i = 0; i < nodes.Count; i++)
         {
             var node = nodes[i];
-            if (node == null)
+            if (node is null)
             {
                 continue;
             }
@@ -880,7 +881,7 @@ public partial class CoreConfigV2rayService
                 };
                 continue;
             }
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.V2raySampleOutbound);
             if (txtOutbound.IsNullOrEmpty())
             {
                 break;
@@ -894,7 +895,7 @@ public partial class CoreConfigV2rayService
             outbound.tag = baseTagName + (i + 1).ToString();
             resultOutbounds.Add(outbound);
         }
-        if (baseTagName == Global.ProxyTag)
+        if (baseTagName == AppConfig.ProxyTag)
         {
             resultOutbounds.AddRange(v2rayConfig.outbounds);
             v2rayConfig.outbounds = resultOutbounds;
@@ -906,7 +907,7 @@ public partial class CoreConfigV2rayService
         return await Task.FromResult(0);
     }
 
-    private async Task<int> GenChainOutboundsList(List<ProfileItem> nodes, V2rayConfig v2rayConfig, string baseTagName = Global.ProxyTag)
+    private async Task<int> GenChainOutboundsList(List<ProfileItem> nodes, V2rayConfig v2rayConfig, string baseTagName = AppConfig.ProxyTag)
     {
         // Based on actual network flow instead of data packets
         var nodesReverse = nodes.AsEnumerable().Reverse().ToList();
@@ -914,7 +915,7 @@ public partial class CoreConfigV2rayService
         for (var i = 0; i < nodesReverse.Count; i++)
         {
             var node = nodesReverse[i];
-            var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
+            var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.V2raySampleOutbound);
             if (txtOutbound.IsNullOrEmpty())
             {
                 break;
@@ -947,7 +948,7 @@ public partial class CoreConfigV2rayService
 
             resultOutbounds.Add(outbound);
         }
-        if (baseTagName == Global.ProxyTag)
+        if (baseTagName == AppConfig.ProxyTag)
         {
             resultOutbounds.AddRange(v2rayConfig.outbounds);
             v2rayConfig.outbounds = resultOutbounds;

v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayRoutingService.cs

@@ -6,12 +6,12 @@ public partial class CoreConfigV2rayService
     {
         try
         {
-            if (v2rayConfig.routing?.rules != null)
+            if (v2rayConfig.routing?.rules is not null)
             {
                 v2rayConfig.routing.domainStrategy = _config.RoutingBasicItem.DomainStrategy;
 
                 var routing = await ConfigHandler.GetDefaultRouting(_config);
-                if (routing != null)
+                if (routing is not null)
                 {
                     if (routing.DomainStrategy.IsNotEmpty())
                     {
@@ -47,7 +47,7 @@ public partial class CoreConfigV2rayService
     {
         try
         {
-            if (rule == null)
+            if (rule is null)
             {
                 return 0;
             }
@@ -95,7 +95,7 @@ public partial class CoreConfigV2rayService
                     {
                         it.domain.RemoveAt(k);
                     }
-                    it.domain[k] = it.domain[k].Replace(Global.RoutingRuleComma, ",");
+                    it.domain[k] = it.domain[k].Replace(AppConfig.RoutingRuleComma, ",");
                 }
                 v2rayConfig.routing.rules.Add(it);
                 hasDomainIp = true;
@@ -123,7 +123,7 @@ public partial class CoreConfigV2rayService
                 if (rule.port.IsNotEmpty()
                     || rule.protocol?.Count > 0
                     || rule.inboundTag?.Count > 0
-                    || rule.network != null
+                    || rule.network is not null
                     )
                 {
                     var it = JsonUtils.DeepCopy(rule);
@@ -141,21 +141,21 @@ public partial class CoreConfigV2rayService
 
     private async Task<string?> GenRoutingUserRuleOutbound(string outboundTag, V2rayConfig v2rayConfig)
     {
-        if (Global.OutboundTags.Contains(outboundTag))
+        if (AppConfig.OutboundTags.Contains(outboundTag))
         {
             return outboundTag;
         }
 
         var node = await AppManager.Instance.GetProfileItemViaRemarks(outboundTag);
 
-        if (node == null
-            || (!Global.XraySupportConfigType.Contains(node.ConfigType)
+        if (node is null
+            || (!AppConfig.XraySupportConfigType.Contains(node.ConfigType)
             && !node.ConfigType.IsGroupType()))
         {
-            return Global.ProxyTag;
+            return AppConfig.ProxyTag;
         }
 
-        var tag = $"{node.IndexId}-{Global.ProxyTag}";
+        var tag = $"{node.IndexId}-{AppConfig.ProxyTag}";
         if (v2rayConfig.outbounds.Any(p => p.tag == tag))
         {
             return tag;
@@ -168,10 +168,10 @@ public partial class CoreConfigV2rayService
             {
                 return tag;
             }
-            return Global.ProxyTag;
+            return AppConfig.ProxyTag;
         }
 
-        var txtOutbound = EmbedUtils.GetEmbedText(Global.V2raySampleOutbound);
+        var txtOutbound = EmbedUtils.GetEmbedText(AppConfig.V2raySampleOutbound);
         var outbound = JsonUtils.Deserialize<Outbounds4Ray>(txtOutbound);
         await GenOutbound(node, outbound);
         outbound.tag = tag;

v2rayN/ServiceLib/Services/CoreConfig/V2ray/V2rayStatisticService.cs

@@ -26,10 +26,10 @@ public partial class CoreConfigV2rayService
                 Inbounds4Ray apiInbound = new();
                 Inboundsettings4Ray apiInboundSettings = new();
                 apiInbound.tag = tag;
-                apiInbound.listen = Global.Loopback;
+                apiInbound.listen = AppConfig.Loopback;
                 apiInbound.port = AppManager.Instance.StatePort;
-                apiInbound.protocol = Global.InboundAPIProtocol;
-                apiInboundSettings.address = Global.Loopback;
+                apiInbound.protocol = AppConfig.InboundAPIProtocol;
+                apiInboundSettings.address = AppConfig.Loopback;
                 apiInbound.settings = apiInboundSettings;
                 v2rayConfig.inbounds.Add(apiInbound);
             }

v2rayN/ServiceLib/Services/DownloadService.cs

@@ -13,14 +13,14 @@ public class DownloadService
 
     private static readonly string _tag = "DownloadService";
 
-    public async Task<int> DownloadDataAsync(string url, WebProxy webProxy, int downloadTimeout, Func<bool, string, Task> updateFunc)
+    public static async Task<int> DownloadDataAsync(string url, WebProxy webProxy, int downloadTimeout, Func<bool, string, Task> updateFunc)
     {
         try
         {
             var progress = new Progress<string>();
             progress.ProgressChanged += (sender, value) => updateFunc?.Invoke(false, $"{value}");
 
-            await DownloaderHelper.Instance.DownloadDataAsync4Speed(webProxy,
+            await DownloaderHelper.DownloadDataAsync4Speed(webProxy,
                   url,
                   progress,
                   downloadTimeout);
@@ -28,7 +28,7 @@ public class DownloadService
         catch (Exception ex)
         {
             await updateFunc?.Invoke(false, ex.Message);
-            if (ex.InnerException != null)
+            if (ex.InnerException is not null)
             {
                 await updateFunc?.Invoke(false, ex.InnerException.Message);
             }
@@ -46,7 +46,7 @@ public class DownloadService
             progress.ProgressChanged += (sender, value) => UpdateCompleted?.Invoke(this, new UpdateResult(value > 100, $"...{value}%"));
 
             var webProxy = await GetWebProxy(blProxy);
-            await DownloaderHelper.Instance.DownloadFileAsync(webProxy,
+            await DownloaderHelper.DownloadFileAsync(webProxy,
                 url,
                 fileName,
                 progress,
@@ -57,7 +57,7 @@ public class DownloadService
             Logging.SaveLog(_tag, ex);
 
             Error?.Invoke(this, new ErrorEventArgs(ex));
-            if (ex.InnerException != null)
+            if (ex.InnerException is not null)
             {
                 Error?.Invoke(this, new ErrorEventArgs(ex.InnerException));
             }
@@ -66,22 +66,22 @@ public class DownloadService
 
     public async Task<string?> UrlRedirectAsync(string url, bool blProxy)
     {
-        var webRequestHandler = new SocketsHttpHandler
+        using var webRequestHandler = new SocketsHttpHandler
         {
             AllowAutoRedirect = false,
             Proxy = await GetWebProxy(blProxy)
         };
-        var client = new HttpClient(webRequestHandler);
+        using var client = new HttpClient(webRequestHandler);
+        using var response = await client.GetAsync(url);
 
-        var response = await client.GetAsync(url);
         if (response.StatusCode == HttpStatusCode.Redirect && response.Headers.Location is not null)
         {
             return response.Headers.Location.ToString();
         }
         else
         {
-            Error?.Invoke(this, new ErrorEventArgs(new Exception("StatusCode error: " + response.StatusCode)));
-            Logging.SaveLog("StatusCode error: " + url);
+            Error?.Invoke(this, new ErrorEventArgs(new HttpRequestException($"StatusCode error: {response.StatusCode}", null, response.StatusCode)));
+            Logging.SaveLog($"StatusCode error: {url}");
             return null;
         }
     }
@@ -100,7 +100,7 @@ public class DownloadService
         {
             Logging.SaveLog(_tag, ex);
             Error?.Invoke(this, new ErrorEventArgs(ex));
-            if (ex.InnerException != null)
+            if (ex.InnerException is not null)
             {
                 Error?.Invoke(this, new ErrorEventArgs(ex.InnerException));
             }
@@ -118,7 +118,7 @@ public class DownloadService
         {
             Logging.SaveLog(_tag, ex);
             Error?.Invoke(this, new ErrorEventArgs(ex));
-            if (ex.InnerException != null)
+            if (ex.InnerException is not null)
             {
                 Error?.Invoke(this, new ErrorEventArgs(ex.InnerException));
             }
@@ -139,7 +139,7 @@ public class DownloadService
             var client = new HttpClient(new SocketsHttpHandler()
             {
                 Proxy = webProxy,
-                UseProxy = webProxy != null
+                UseProxy = webProxy is not null
             });
 
             if (userAgent.IsNullOrEmpty())
@@ -163,7 +163,7 @@ public class DownloadService
         {
             Logging.SaveLog(_tag, ex);
             Error?.Invoke(this, new ErrorEventArgs(ex));
-            if (ex.InnerException != null)
+            if (ex.InnerException is not null)
             {
                 Error?.Invoke(this, new ErrorEventArgs(ex.InnerException));
             }
@@ -185,14 +185,14 @@ public class DownloadService
             {
                 userAgent = Utils.GetVersion(false);
             }
-            var result = await DownloaderHelper.Instance.DownloadStringAsync(webProxy, url, userAgent, timeout);
+            var result = await DownloaderHelper.DownloadStringAsync(webProxy, url, userAgent, timeout);
             return result;
         }
         catch (Exception ex)
         {
             Logging.SaveLog(_tag, ex);
             Error?.Invoke(this, new ErrorEventArgs(ex));
-            if (ex.InnerException != null)
+            if (ex.InnerException is not null)
             {
                 Error?.Invoke(this, new ErrorEventArgs(ex.InnerException));
             }
@@ -200,22 +200,22 @@ public class DownloadService
         return null;
     }
 
-    private async Task<WebProxy?> GetWebProxy(bool blProxy)
+    private static async Task<WebProxy?> GetWebProxy(bool blProxy)
     {
         if (!blProxy)
         {
             return null;
         }
         var port = AppManager.Instance.GetLocalPort(EInboundProtocol.socks);
-        if (await SocketCheck(Global.Loopback, port) == false)
+        if (await SocketCheck(AppConfig.Loopback, port) == false)
         {
             return null;
         }
 
-        return new WebProxy($"socks5://{Global.Loopback}:{port}");
+        return new WebProxy($"socks5://{AppConfig.Loopback}:{port}");
     }
 
-    private async Task<bool> SocketCheck(string ip, int port)
+    private static async Task<bool> SocketCheck(string ip, int port)
     {
         try
         {

v2rayN/ServiceLib/Services/ProcessService.cs

@@ -39,7 +39,7 @@ public class ProcessService : IDisposable
             EnableRaisingEvents = true
         };
 
-        if (environmentVars != null)
+        if (environmentVars is not null)
         {
             foreach (var kv in environmentVars)
             {

v2rayN/ServiceLib/Services/SpeedtestService.cs

@@ -7,6 +7,9 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
     private readonly Func<SpeedTestResult, Task>? _updateFunc = updateFunc;
     private static readonly ConcurrentBag<string> _lstExitLoop = new();
 
+    private static readonly CompositeFormat _speedtestingTestFailedPart =
+        CompositeFormat.Parse(ResUI.SpeedtestingTestFailedPart);
+
     public void RunLoop(ESpeedActionType actionType, List<ProfileItem> selecteds)
     {
         Task.Run(async () =>
@@ -128,7 +131,7 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
                     var responseTime = await GetTcpingTime(it.Address, it.Port);
 
                     ProfileExManager.Instance.SetTestDelay(it.IndexId, responseTime);
-                    await UpdateFunc(it.IndexId, responseTime.ToString());
+                    await UpdateFunc(it.IndexId, responseTime.ToString(CultureInfo.InvariantCulture));
                 }
                 catch (Exception ex)
                 {
@@ -143,7 +146,7 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
     {
         if (pageSize <= 0)
         {
-            pageSize = lstSelected.Count < Global.SpeedTestPageSize ? lstSelected.Count : Global.SpeedTestPageSize;
+            pageSize = lstSelected.Count < AppConfig.SpeedTestPageSize ? lstSelected.Count : AppConfig.SpeedTestPageSize;
         }
         var lstTest = GetTestBatchItem(lstSelected, pageSize);
 
@@ -168,7 +171,7 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
                 return;
             }
 
-            await UpdateFunc("", string.Format(ResUI.SpeedtestingTestFailedPart, lstFailed.Count));
+            await UpdateFunc("", string.Format(CultureInfo.InvariantCulture, _speedtestingTestFailedPart, lstFailed.Count));
 
             if (pageSizeNext > _config.SpeedTestItem.MixedConcurrencyCount)
             {
@@ -220,7 +223,7 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
         }
         finally
         {
-            if (processService != null)
+            if (processService is not null)
             {
                 await processService?.StopAsync();
             }
@@ -231,7 +234,6 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
     private async Task RunMixedTestAsync(List<ServerTestItem> selecteds, int concurrencyCount, bool blSpeedTest, string exitLoopKey)
     {
         using var concurrencySemaphore = new SemaphoreSlim(concurrencyCount);
-        var downloadHandle = new DownloadService();
         List<Task> tasks = new();
         foreach (var it in selecteds)
         {
@@ -267,7 +269,7 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
 
                         if (delay > 0)
                         {
-                            await DoSpeedTest(downloadHandle, it);
+                            await DoSpeedTest(it);
                         }
                         else
                         {
@@ -281,7 +283,7 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
                 }
                 finally
                 {
-                    if (processService != null)
+                    if (processService is not null)
                     {
                         await processService?.StopAsync();
                     }
@@ -294,25 +296,24 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
 
     private async Task<int> DoRealPing(ServerTestItem it)
     {
-        var webProxy = new WebProxy($"socks5://{Global.Loopback}:{it.Port}");
+        var webProxy = new WebProxy($"socks5://{AppConfig.Loopback}:{it.Port}");
         var responseTime = await ConnectionHandler.GetRealPingTime(_config.SpeedTestItem.SpeedPingTestUrl, webProxy, 10);
 
         ProfileExManager.Instance.SetTestDelay(it.IndexId, responseTime);
-        await UpdateFunc(it.IndexId, responseTime.ToString());
+        await UpdateFunc(it.IndexId, responseTime.ToString(CultureInfo.InvariantCulture));
         return responseTime;
     }
 
-    private async Task DoSpeedTest(DownloadService downloadHandle, ServerTestItem it)
+    private async Task DoSpeedTest(ServerTestItem it)
     {
         await UpdateFunc(it.IndexId, "", ResUI.Speedtesting);
 
-        var webProxy = new WebProxy($"socks5://{Global.Loopback}:{it.Port}");
+        var webProxy = new WebProxy($"socks5://{AppConfig.Loopback}:{it.Port}");
         var url = _config.SpeedTestItem.SpeedTestUrl;
         var timeout = _config.SpeedTestItem.SpeedTestTimeout;
-        await downloadHandle.DownloadDataAsync(url, webProxy, timeout, async (success, msg) =>
+        await DownloadService.DownloadDataAsync(url, webProxy, timeout, async (success, msg) =>
         {
-            decimal.TryParse(msg, out var dec);
-            if (dec > 0)
+            if (decimal.TryParse(msg, out var dec) && dec > 0)
             {
                 ProfileExManager.Instance.SetTestSpeed(it.IndexId, dec);
             }
@@ -320,7 +321,7 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
         });
     }
 
-    private async Task<int> GetTcpingTime(string url, int port)
+    private static async Task<int> GetTcpingTime(string url, int port)
     {
         var responseTime = -1;
 
@@ -350,11 +351,11 @@ public class SpeedtestService(Config config, Func<SpeedTestResult, Task> updateF
         return responseTime;
     }
 
-    private List<List<ServerTestItem>> GetTestBatchItem(List<ServerTestItem> lstSelected, int pageSize)
+    private static List<List<ServerTestItem>> GetTestBatchItem(List<ServerTestItem> lstSelected, int pageSize)
     {
         List<List<ServerTestItem>> lstTest = new();
-        var lst1 = lstSelected.Where(t => Global.XraySupportConfigType.Contains(t.ConfigType)).ToList();
-        var lst2 = lstSelected.Where(t => Global.SingboxOnlyConfigType.Contains(t.ConfigType)).ToList();
+        var lst1 = lstSelected.Where(t => AppConfig.XraySupportConfigType.Contains(t.ConfigType)).ToList();
+        var lst2 = lstSelected.Where(t => AppConfig.SingboxOnlyConfigType.Contains(t.ConfigType)).ToList();
 
         for (var num = 0; num < (int)Math.Ceiling(lst1.Count * 1.0 / pageSize); num++)
         {

v2rayN/ServiceLib/Services/Statistics/StatisticsSingboxService.cs

@@ -8,7 +8,7 @@ public class StatisticsSingboxService
     private bool _exitFlag;
     private ClientWebSocket? webSocket;
     private readonly Func<ServerSpeedItem, Task>? _updateFunc;
-    private string Url => $"ws://{Global.Loopback}:{AppManager.Instance.StatePort2}/traffic";
+    private string Url => $"ws://{AppConfig.Loopback}:{AppManager.Instance.StatePort2}/traffic";
     private static readonly string _tag = "StatisticsSingboxService";
 
     public StatisticsSingboxService(Config config, Func<ServerSpeedItem, Task> updateFunc)
@@ -26,7 +26,7 @@ public class StatisticsSingboxService
 
         try
         {
-            if (webSocket == null)
+            if (webSocket is null)
             {
                 webSocket = new ClientWebSocket();
                 await webSocket.ConnectAsync(new Uri(Url), CancellationToken.None);
@@ -40,11 +40,8 @@ public class StatisticsSingboxService
         try
         {
             _exitFlag = true;
-            if (webSocket != null)
-            {
-                webSocket.Abort();
-                webSocket = null;
-            }
+            webSocket?.Abort();
+            webSocket = null;
         }
         catch (Exception ex)
         {
@@ -65,7 +62,7 @@ public class StatisticsSingboxService
                 {
                     continue;
                 }
-                if (webSocket != null)
+                if (webSocket is not null)
                 {
                     if (webSocket.State is WebSocketState.Aborted or WebSocketState.Closed)
                     {
@@ -112,7 +109,7 @@ public class StatisticsSingboxService
         try
         {
             var trafficItem = JsonUtils.Deserialize<TrafficItem>(source);
-            if (trafficItem != null)
+            if (trafficItem is not null)
             {
                 up = trafficItem.Up;
                 down = trafficItem.Down;

v2rayN/ServiceLib/Services/Statistics/StatisticsXrayService.cs

@@ -7,7 +7,7 @@ public class StatisticsXrayService
     private readonly Config _config;
     private bool _exitFlag;
     private readonly Func<ServerSpeedItem, Task>? _updateFunc;
-    private string Url => $"{Global.HttpProtocol}{Global.Loopback}:{AppManager.Instance.StatePort}/debug/vars";
+    private string Url => $"{AppConfig.HttpProtocol}{AppConfig.Loopback}:{AppManager.Instance.StatePort}/debug/vars";
 
     public StatisticsXrayService(Config config, Func<ServerSpeedItem, Task> updateFunc)
     {
@@ -36,7 +36,7 @@ public class StatisticsXrayService
                 }
 
                 var result = await HttpClientHelper.Instance.TryGetAsync(Url);
-                if (result != null)
+                if (result is not null)
                 {
                     var server = ParseOutput(result) ?? new ServerSpeedItem();
                     await _updateFunc?.Invoke(server);
@@ -54,7 +54,7 @@ public class StatisticsXrayService
         try
         {
             var source = JsonUtils.Deserialize<V2rayMetricsVars>(result);
-            if (source?.stats?.outbound == null)
+            if (source?.stats?.outbound is null)
             {
                 return null;
             }
@@ -63,18 +63,18 @@ public class StatisticsXrayService
             foreach (var key in source.stats.outbound.Keys.Cast<string>())
             {
                 var value = source.stats.outbound[key];
-                if (value == null)
+                if (value is null)
                 {
                     continue;
                 }
                 var state = JsonUtils.Deserialize<V2rayMetricsVarsLink>(value.ToString());
 
-                if (key.StartsWith(Global.ProxyTag))
+                if (key.StartsWith(AppConfig.ProxyTag))
                 {
                     server.ProxyUp += state.uplink / linkBase;
                     server.ProxyDown += state.downlink / linkBase;
                 }
-                else if (key == Global.DirectTag)
+                else if (key == AppConfig.DirectTag)
                 {
                     server.DirectUp = state.uplink / linkBase;
                     server.DirectDown = state.downlink / linkBase;

v2rayN/ServiceLib/Services/UpdateService.cs

@@ -136,7 +136,7 @@ public class UpdateService(Config config, Func<bool, string, Task> updateFunc)
         if (preRelease)
         {
             var url = coreInfo?.ReleaseApiUrl;
-            var result = await downloadHandle.TryDownloadString(url, true, Global.AppName);
+            var result = await downloadHandle.TryDownloadString(url, true, AppConfig.AppName);
             if (result.IsNullOrEmpty())
             {
                 return new UpdateResult(false, "");
@@ -151,7 +151,7 @@ public class UpdateService(Config config, Func<bool, string, Task> updateFunc)
         {
             var url = Path.Combine(coreInfo.Url, "latest");
             var lastUrl = await downloadHandle.UrlRedirectAsync(url, true);
-            if (lastUrl == null)
+            if (lastUrl is null)
             {
                 return new UpdateResult(false, "");
             }
@@ -327,7 +327,7 @@ public class UpdateService(Config config, Func<bool, string, Task> updateFunc)
     private async Task UpdateGeoFiles()
     {
         var geoUrl = string.IsNullOrEmpty(_config?.ConstItem.GeoSourceUrl)
-            ? Global.GeoUrl
+            ? AppConfig.GeoUrl
             : _config.ConstItem.GeoSourceUrl;
 
         List<string> files = ["geosite", "geoip"];
@@ -349,7 +349,7 @@ public class UpdateService(Config config, Func<bool, string, Task> updateFunc)
             return;
         }
 
-        foreach (var url in Global.OtherGeoUrls)
+        foreach (var url in AppConfig.OtherGeoUrls)
         {
             var fileName = Path.GetFileName(url);
             var targetPath = Utils.GetBinPath($"{fileName}");
@@ -415,7 +415,7 @@ public class UpdateService(Config config, Func<bool, string, Task> updateFunc)
     private async Task UpdateSrsFile(string type, string srsName)
     {
         var srsUrl = string.IsNullOrEmpty(_config.ConstItem.SrsSourceUrl)
-                        ? Global.SingboxRulesetUrl
+                        ? AppConfig.SingboxRulesetUrl
                         : _config.ConstItem.SrsSourceUrl;
 
         var fileName = $"{type}-{srsName}.srs";

v2rayN/ServiceLib/Services/WindowsJobService.cs

@@ -3,7 +3,7 @@ namespace ServiceLib.Services;
 /// <summary>
 /// http://stackoverflow.com/questions/6266820/working-example-of-createjobobject-setinformationjobobject-pinvoke-in-net
 /// </summary>
-public sealed class WindowsJobService : IDisposable
+public sealed partial class WindowsJobService : IDisposable
 {
     private nint handle = nint.Zero;
 
@@ -99,18 +99,20 @@ public sealed class WindowsJobService : IDisposable
 
     #region Interop
 
-    [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
-    private static extern nint CreateJobObject(nint a, string? lpName);
+    [LibraryImport("kernel32.dll", EntryPoint = "CreateJobObjectW", StringMarshalling = StringMarshalling.Utf16)]
+    private static partial nint CreateJobObject(nint a, string? lpName);
 
-    [DllImport("kernel32.dll", SetLastError = true)]
-    private static extern bool SetInformationJobObject(nint hJob, JobObjectInfoType infoType, nint lpJobObjectInfo, uint cbJobObjectInfoLength);
-
-    [DllImport("kernel32.dll", SetLastError = true)]
-    private static extern bool AssignProcessToJobObject(nint job, nint process);
-
-    [DllImport("kernel32.dll", SetLastError = true)]
+    [LibraryImport("kernel32.dll", SetLastError = true)]
     [return: MarshalAs(UnmanagedType.Bool)]
-    private static extern bool CloseHandle(nint hObject);
+    private static partial bool SetInformationJobObject(nint hJob, JobObjectInfoType infoType, nint lpJobObjectInfo, uint cbJobObjectInfoLength);
+
+    [LibraryImport("kernel32.dll", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    private static partial bool AssignProcessToJobObject(nint job, nint process);
+
+    [LibraryImport("kernel32.dll", SetLastError = true)]
+    [return: MarshalAs(UnmanagedType.Bool)]
+    private static partial bool CloseHandle(nint hObject);
 
     #endregion Interop
 }

v2rayN/ServiceLib/ViewModels/AddGroupServerViewModel.cs

@@ -39,12 +39,12 @@ public class AddGroupServerViewModel : MyReactiveObject
 
     public AddGroupServerViewModel(ProfileItem profileItem, Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
         var canEditRemove = this.WhenAnyValue(
             x => x.SelectedChild,
-            SelectedChild => SelectedChild != null && !SelectedChild.Remarks.IsNullOrEmpty());
+            SelectedChild => SelectedChild is not null && !SelectedChild.Remarks.IsNullOrEmpty());
 
         RemoveCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -97,13 +97,13 @@ public class AddGroupServerViewModel : MyReactiveObject
         Filter = profileGroup?.Filter;
 
         var childItemMulti = ProfileGroupItemManager.Instance.GetOrCreateAndMarkDirty(SelectedSource?.IndexId);
-        if (childItemMulti != null)
+        if (childItemMulti is not null)
         {
             var childIndexIds = Utils.String2List(childItemMulti.ChildItems) ?? [];
             foreach (var item in childIndexIds)
             {
                 var child = await AppManager.Instance.GetProfileItem(item);
-                if (child == null)
+                if (child is null)
                 {
                     continue;
                 }
@@ -114,14 +114,14 @@ public class AddGroupServerViewModel : MyReactiveObject
 
     public async Task ChildRemoveAsync()
     {
-        if (SelectedChild == null || SelectedChild.IndexId.IsNullOrEmpty())
+        if (SelectedChild is null || SelectedChild.IndexId.IsNullOrEmpty())
         {
             NoticeManager.Instance.Enqueue(ResUI.PleaseSelectServer);
             return;
         }
         foreach (var it in SelectedChildren ?? [SelectedChild])
         {
-            if (it != null)
+            if (it is not null)
             {
                 ChildItemsObs.Remove(it);
             }
@@ -131,7 +131,7 @@ public class AddGroupServerViewModel : MyReactiveObject
 
     public async Task MoveServer(EMove eMove)
     {
-        if (SelectedChild == null || SelectedChild.IndexId.IsNullOrEmpty())
+        if (SelectedChild is null || SelectedChild.IndexId.IsNullOrEmpty())
         {
             NoticeManager.Instance.Enqueue(ResUI.PleaseSelectServer);
             return;
@@ -236,10 +236,10 @@ public class AddGroupServerViewModel : MyReactiveObject
             return;
         }
 
-        if (await ConfigHandler.AddGroupServerCommon(_config, SelectedSource, profileGroup, true) == 0)
+        if (await ConfigHandler.AddGroupServerCommon(SelectedSource, profileGroup, true) == 0)
         {
             NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
-            _updateView?.Invoke(EViewAction.CloseWindow, null);
+            UpdateView?.Invoke(EViewAction.CloseWindow, null);
         }
         else
         {

v2rayN/ServiceLib/ViewModels/AddServer2ViewModel.cs

@@ -15,12 +15,12 @@ public class AddServer2ViewModel : MyReactiveObject
 
     public AddServer2ViewModel(ProfileItem profileItem, Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
         BrowseServerCmd = ReactiveCommand.CreateFromTask(async () =>
         {
-            _updateView?.Invoke(EViewAction.BrowseServer, null);
+            UpdateView?.Invoke(EViewAction.BrowseServer, null);
             await Task.CompletedTask;
         });
         EditServerCmd = ReactiveCommand.CreateFromTask(async () =>
@@ -52,10 +52,10 @@ public class AddServer2ViewModel : MyReactiveObject
         }
         SelectedSource.CoreType = CoreType.IsNullOrEmpty() ? null : (ECoreType)Enum.Parse(typeof(ECoreType), CoreType);
 
-        if (await ConfigHandler.EditCustomServer(_config, SelectedSource) == 0)
+        if (await ConfigHandler.EditCustomServer(SelectedSource) == 0)
         {
             NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
-            _updateView?.Invoke(EViewAction.CloseWindow, null);
+            UpdateView?.Invoke(EViewAction.CloseWindow, null);
         }
         else
         {
@@ -73,7 +73,7 @@ public class AddServer2ViewModel : MyReactiveObject
         var item = await AppManager.Instance.GetProfileItem(SelectedSource.IndexId);
         item ??= SelectedSource;
         item.Address = fileName;
-        if (await ConfigHandler.AddCustomServer(_config, item, false) == 0)
+        if (await ConfigHandler.AddCustomServer(Config, item, false) == 0)
         {
             NoticeManager.Instance.Enqueue(ResUI.SuccessfullyImportedCustomServer);
             if (item.IndexId.IsNotEmpty())

v2rayN/ServiceLib/ViewModels/AddServerViewModel.cs

@@ -23,8 +23,8 @@ public class AddServerViewModel : MyReactiveObject
 
     public AddServerViewModel(ProfileItem profileItem, Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
         FetchCertCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -50,8 +50,8 @@ public class AddServerViewModel : MyReactiveObject
 
         if (profileItem.IndexId.IsNullOrEmpty())
         {
-            profileItem.Network = Global.DefaultNetwork;
-            profileItem.HeaderType = Global.None;
+            profileItem.Network = AppConfig.DefaultNetwork;
+            profileItem.HeaderType = AppConfig.None;
             profileItem.RequestHost = "";
             profileItem.StreamSecurity = "";
             SelectedSource = profileItem;
@@ -80,7 +80,7 @@ public class AddServerViewModel : MyReactiveObject
         }
         var port = SelectedSource.Port.ToString();
         if (port.IsNullOrEmpty() || !Utils.IsNumeric(port)
-            || SelectedSource.Port <= 0 || SelectedSource.Port >= Global.MaxPort)
+            || SelectedSource.Port <= 0 || SelectedSource.Port >= AppConfig.MaxPort)
         {
             NoticeManager.Instance.Enqueue(ResUI.FillCorrectServerPort);
             return;
@@ -110,10 +110,10 @@ public class AddServerViewModel : MyReactiveObject
         SelectedSource.Cert = Cert.IsNullOrEmpty() ? string.Empty : Cert;
         SelectedSource.CertSha = CertSha.IsNullOrEmpty() ? string.Empty : CertSha;
 
-        if (await ConfigHandler.AddServer(_config, SelectedSource) == 0)
+        if (await ConfigHandler.AddServer(Config, SelectedSource) == 0)
         {
             NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
-            _updateView?.Invoke(EViewAction.CloseWindow, null);
+            UpdateView?.Invoke(EViewAction.CloseWindow, null);
         }
         else
         {
@@ -156,7 +156,7 @@ public class AddServerViewModel : MyReactiveObject
 
     private async Task FetchCert()
     {
-        if (SelectedSource.StreamSecurity != Global.StreamSecurity)
+        if (SelectedSource.StreamSecurity != AppConfig.StreamSecurity)
         {
             return;
         }
@@ -186,7 +186,7 @@ public class AddServerViewModel : MyReactiveObject
 
     private async Task FetchCertChain()
     {
-        if (SelectedSource.StreamSecurity != Global.StreamSecurity)
+        if (SelectedSource.StreamSecurity != AppConfig.StreamSecurity)
         {
             return;
         }

v2rayN/ServiceLib/ViewModels/BackupAndRestoreViewModel.cs

@@ -17,8 +17,8 @@ public class BackupAndRestoreViewModel : MyReactiveObject
 
     public BackupAndRestoreViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
         WebDavCheckCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -33,7 +33,7 @@ public class BackupAndRestoreViewModel : MyReactiveObject
             await RemoteRestore();
         });
 
-        SelectedSource = JsonUtils.DeepCopy(_config.WebDavItem);
+        SelectedSource = JsonUtils.DeepCopy(Config.WebDavItem);
     }
 
     private void DisplayOperationMsg(string msg = "")
@@ -44,8 +44,8 @@ public class BackupAndRestoreViewModel : MyReactiveObject
     private async Task WebDavCheck()
     {
         DisplayOperationMsg();
-        _config.WebDavItem = SelectedSource;
-        _ = await ConfigHandler.SaveConfig(_config);
+        Config.WebDavItem = SelectedSource;
+        _ = await ConfigHandler.SaveConfig(Config);
 
         var result = await WebDavManager.Instance.CheckConnection();
         if (result)
@@ -145,7 +145,7 @@ public class BackupAndRestoreViewModel : MyReactiveObject
             {
                 if (Utils.UpgradeAppExists(out var upgradeFileName))
                 {
-                    _ = ProcUtils.ProcessStart(upgradeFileName, Global.RebootAs, Utils.StartupPath());
+                    _ = ProcUtils.ProcessStart(upgradeFileName, AppConfig.RebootAs, Utils.StartupPath());
                 }
             }
             AppManager.Instance.Shutdown(true);

v2rayN/ServiceLib/ViewModels/CheckUpdateViewModel.cs

@@ -13,22 +13,22 @@ public class CheckUpdateViewModel : MyReactiveObject
 
     public CheckUpdateViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        base.UpdateView = updateView;
 
         CheckUpdateCmd = ReactiveCommand.CreateFromTask(CheckUpdate);
         CheckUpdateCmd.ThrownExceptions.Subscribe(ex =>
         {
             Logging.SaveLog(_tag, ex);
-            _ = UpdateView(_v2rayN, ex.Message);
+            _ = UpdateViewAsync(_v2rayN, ex.Message);
         });
 
-        EnableCheckPreReleaseUpdate = _config.CheckUpdateItem.CheckPreReleaseUpdate;
+        EnableCheckPreReleaseUpdate = Config.CheckUpdateItem.CheckPreReleaseUpdate;
 
         this.WhenAnyValue(
         x => x.EnableCheckPreReleaseUpdate,
         y => y == true)
-            .Subscribe(c => _config.CheckUpdateItem.CheckPreReleaseUpdate = EnableCheckPreReleaseUpdate);
+            .Subscribe(c => Config.CheckUpdateItem.CheckPreReleaseUpdate = EnableCheckPreReleaseUpdate);
 
         RefreshCheckUpdateItems();
     }
@@ -65,7 +65,7 @@ public class CheckUpdateViewModel : MyReactiveObject
 
         return new()
         {
-            IsSelected = _config.CheckUpdateItem.SelectedCoreTypes?.Contains(coreType) ?? true,
+            IsSelected = Config.CheckUpdateItem.SelectedCoreTypes?.Contains(coreType) ?? true,
             CoreType = coreType,
             Remarks = ResUI.menuCheckUpdate,
         };
@@ -73,8 +73,8 @@ public class CheckUpdateViewModel : MyReactiveObject
 
     private async Task SaveSelectedCoreTypes()
     {
-        _config.CheckUpdateItem.SelectedCoreTypes = CheckUpdateModels.Where(t => t.IsSelected == true).Select(t => t.CoreType ?? "").ToList();
-        await ConfigHandler.SaveConfig(_config);
+        Config.CheckUpdateItem.SelectedCoreTypes = CheckUpdateModels.Where(t => t.IsSelected == true).Select(t => t.CoreType ?? "").ToList();
+        await ConfigHandler.SaveConfig(Config);
     }
 
     private async Task CheckUpdate()
@@ -97,7 +97,7 @@ public class CheckUpdateViewModel : MyReactiveObject
                 continue;
             }
 
-            await UpdateView(item.CoreType, "...");
+            await UpdateViewAsync(item.CoreType, "...");
             if (item.CoreType == _geo)
             {
                 await CheckUpdateGeo();
@@ -106,7 +106,7 @@ public class CheckUpdateViewModel : MyReactiveObject
             {
                 if (Utils.IsPackagedInstall())
                 {
-                    await UpdateView(_v2rayN, "Not Support");
+                    await UpdateViewAsync(_v2rayN, "Not Support");
                     continue;
                 }
                 await CheckUpdateN(EnableCheckPreReleaseUpdate);
@@ -127,7 +127,7 @@ public class CheckUpdateViewModel : MyReactiveObject
     private void UpdatedPlusPlus(string coreType, string fileName)
     {
         var item = _lstUpdated.FirstOrDefault(x => x.CoreType == coreType);
-        if (item == null)
+        if (item is null)
         {
             return;
         }
@@ -142,13 +142,13 @@ public class CheckUpdateViewModel : MyReactiveObject
     {
         async Task _updateUI(bool success, string msg)
         {
-            await UpdateView(_geo, msg);
+            await UpdateViewAsync(_geo, msg);
             if (success)
             {
                 UpdatedPlusPlus(_geo, "");
             }
         }
-        await new UpdateService(_config, _updateUI).UpdateGeoFileAll()
+        await new UpdateService(Config, _updateUI).UpdateGeoFileAll()
             .ContinueWith(t => UpdatedPlusPlus(_geo, ""));
     }
 
@@ -156,14 +156,14 @@ public class CheckUpdateViewModel : MyReactiveObject
     {
         async Task _updateUI(bool success, string msg)
         {
-            await UpdateView(_v2rayN, msg);
+            await UpdateViewAsync(_v2rayN, msg);
             if (success)
             {
-                await UpdateView(_v2rayN, ResUI.OperationSuccess);
+                await UpdateViewAsync(_v2rayN, ResUI.OperationSuccess);
                 UpdatedPlusPlus(_v2rayN, msg);
             }
         }
-        await new UpdateService(_config, _updateUI).CheckUpdateGuiN(preRelease)
+        await new UpdateService(Config, _updateUI).CheckUpdateGuiN(preRelease)
             .ContinueWith(t => UpdatedPlusPlus(_v2rayN, ""));
     }
 
@@ -171,16 +171,16 @@ public class CheckUpdateViewModel : MyReactiveObject
     {
         async Task _updateUI(bool success, string msg)
         {
-            await UpdateView(model.CoreType, msg);
+            await UpdateViewAsync(model.CoreType, msg);
             if (success)
             {
-                await UpdateView(model.CoreType, ResUI.MsgUpdateV2rayCoreSuccessfullyMore);
+                await UpdateViewAsync(model.CoreType, ResUI.MsgUpdateV2rayCoreSuccessfullyMore);
 
                 UpdatedPlusPlus(model.CoreType, msg);
             }
         }
         var type = (ECoreType)Enum.Parse(typeof(ECoreType), model.CoreType);
-        await new UpdateService(_config, _updateUI).CheckUpdateCore(type, preRelease)
+        await new UpdateService(Config, _updateUI).CheckUpdateCore(type, preRelease)
             .ContinueWith(t => UpdatedPlusPlus(model.CoreType, ""));
     }
 
@@ -235,7 +235,7 @@ public class CheckUpdateViewModel : MyReactiveObject
             }
             if (!Utils.UpgradeAppExists(out var upgradeFileName))
             {
-                await UpdateView(_v2rayN, ResUI.UpgradeAppNotExistTip);
+                await UpdateViewAsync(_v2rayN, ResUI.UpgradeAppNotExistTip);
                 NoticeManager.Instance.SendMessageAndEnqueue(ResUI.UpgradeAppNotExistTip);
                 Logging.SaveLog("UpgradeApp does not exist");
                 return;
@@ -249,7 +249,7 @@ public class CheckUpdateViewModel : MyReactiveObject
         }
         catch (Exception ex)
         {
-            await UpdateView(_v2rayN, ex.Message);
+            await UpdateViewAsync(_v2rayN, ex.Message);
         }
     }
 
@@ -300,7 +300,7 @@ public class CheckUpdateViewModel : MyReactiveObject
                 }
             }
 
-            await UpdateView(item.CoreType, ResUI.MsgUpdateV2rayCoreSuccessfully);
+            await UpdateViewAsync(item.CoreType, ResUI.MsgUpdateV2rayCoreSuccessfully);
 
             if (File.Exists(fileName))
             {
@@ -309,7 +309,7 @@ public class CheckUpdateViewModel : MyReactiveObject
         }
     }
 
-    private async Task UpdateView(string coreType, string msg)
+    private async Task UpdateViewAsync(string coreType, string msg)
     {
         var item = new CheckUpdateModel()
         {
@@ -328,7 +328,7 @@ public class CheckUpdateViewModel : MyReactiveObject
     public async Task UpdateViewResult(CheckUpdateModel model)
     {
         var found = CheckUpdateModels.FirstOrDefault(t => t.CoreType == model.CoreType);
-        if (found == null)
+        if (found is null)
         {
             return;
         }

v2rayN/ServiceLib/ViewModels/ClashConnectionsViewModel.cs

@@ -18,18 +18,18 @@ public class ClashConnectionsViewModel : MyReactiveObject
 
     public ClashConnectionsViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
-        AutoRefresh = _config.ClashUIItem.ConnectionsAutoRefresh;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
+        AutoRefresh = Config.ClashUIItem.ConnectionsAutoRefresh;
 
         var canEditRemove = this.WhenAnyValue(
          x => x.SelectedSource,
-         selectedSource => selectedSource != null && selectedSource.Id.IsNotEmpty());
+         selectedSource => selectedSource is not null && selectedSource.Id.IsNotEmpty());
 
         this.WhenAnyValue(
            x => x.AutoRefresh,
            y => y == true)
-               .Subscribe(c => { _config.ClashUIItem.ConnectionsAutoRefresh = AutoRefresh; });
+               .Subscribe(c => { Config.ClashUIItem.ConnectionsAutoRefresh = AutoRefresh; });
         ConnectionCloseCmd = ReactiveCommand.CreateFromTask(async () =>
         {
             await ClashConnectionClose(false);
@@ -51,7 +51,7 @@ public class ClashConnectionsViewModel : MyReactiveObject
     private async Task GetClashConnections()
     {
         var ret = await ClashApiManager.Instance.GetClashConnectionsAsync();
-        if (ret == null)
+        if (ret is null)
         {
             return;
         }
@@ -133,12 +133,12 @@ public class ClashConnectionsViewModel : MyReactiveObject
                     continue;
                 }
 
-                if (_config.ClashUIItem.ConnectionsRefreshInterval <= 0)
+                if (Config.ClashUIItem.ConnectionsRefreshInterval <= 0)
                 {
                     continue;
                 }
 
-                if (numOfExecuted % _config.ClashUIItem.ConnectionsRefreshInterval != 0)
+                if (numOfExecuted % Config.ClashUIItem.ConnectionsRefreshInterval != 0)
                 {
                     continue;
                 }

v2rayN/ServiceLib/ViewModels/ClashProxiesViewModel.cs

@@ -35,8 +35,8 @@ public class ClashProxiesViewModel : MyReactiveObject
 
     public ClashProxiesViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
         ProxiesReloadCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -58,15 +58,15 @@ public class ClashProxiesViewModel : MyReactiveObject
 
         SelectedGroup = new();
         SelectedDetail = new();
-        AutoRefresh = _config.ClashUIItem.ProxiesAutoRefresh;
-        SortingSelected = _config.ClashUIItem.ProxiesSorting;
-        RuleModeSelected = (int)_config.ClashUIItem.RuleMode;
+        AutoRefresh = Config.ClashUIItem.ProxiesAutoRefresh;
+        SortingSelected = Config.ClashUIItem.ProxiesSorting;
+        RuleModeSelected = (int)Config.ClashUIItem.RuleMode;
 
         #region WhenAnyValue && ReactiveCommand
 
         this.WhenAnyValue(
            x => x.SelectedGroup,
-           y => y != null && y.Name.IsNotEmpty())
+           y => y is not null && y.Name.IsNotEmpty())
                .Subscribe(c => RefreshProxyDetails(c));
 
         this.WhenAnyValue(
@@ -82,7 +82,7 @@ public class ClashProxiesViewModel : MyReactiveObject
         this.WhenAnyValue(
         x => x.AutoRefresh,
         y => y == true)
-            .Subscribe(c => { _config.ClashUIItem.ProxiesAutoRefresh = AutoRefresh; });
+            .Subscribe(c => { Config.ClashUIItem.ProxiesAutoRefresh = AutoRefresh; });
 
         #endregion WhenAnyValue && ReactiveCommand
 
@@ -109,7 +109,7 @@ public class ClashProxiesViewModel : MyReactiveObject
         {
             return;
         }
-        if (_config.ClashUIItem.RuleMode == (ERuleMode)RuleModeSelected)
+        if (Config.ClashUIItem.RuleMode == (ERuleMode)RuleModeSelected)
         {
             return;
         }
@@ -118,7 +118,7 @@ public class ClashProxiesViewModel : MyReactiveObject
 
     public async Task SetRuleModeCheck(ERuleMode mode)
     {
-        if (_config.ClashUIItem.RuleMode == mode)
+        if (Config.ClashUIItem.RuleMode == mode)
         {
             return;
         }
@@ -131,9 +131,9 @@ public class ClashProxiesViewModel : MyReactiveObject
         {
             return;
         }
-        if (SortingSelected != _config.ClashUIItem.ProxiesSorting)
+        if (SortingSelected != Config.ClashUIItem.ProxiesSorting)
         {
-            _config.ClashUIItem.ProxiesSorting = SortingSelected;
+            Config.ClashUIItem.ProxiesSorting = SortingSelected;
         }
 
         RefreshProxyDetails(c);
@@ -149,7 +149,7 @@ public class ClashProxiesViewModel : MyReactiveObject
 
     private async Task SetRuleMode(ERuleMode mode)
     {
-        _config.ClashUIItem.RuleMode = mode;
+        Config.ClashUIItem.RuleMode = mode;
 
         if (mode != ERuleMode.Unchanged)
         {
@@ -164,7 +164,7 @@ public class ClashProxiesViewModel : MyReactiveObject
     private async Task GetClashProxies(bool refreshUI)
     {
         var ret = await ClashApiManager.Instance.GetClashProxiesAsync();
-        if (ret?.Item1 == null || ret.Item2 == null)
+        if (ret?.Item1 is null || ret.Item2 is null)
         {
             return;
         }
@@ -179,7 +179,7 @@ public class ClashProxiesViewModel : MyReactiveObject
 
     public async Task RefreshProxyGroups()
     {
-        if (_proxies == null)
+        if (_proxies is null)
         {
             return;
         }
@@ -188,7 +188,7 @@ public class ClashProxiesViewModel : MyReactiveObject
         ProxyGroups.Clear();
 
         var proxyGroups = ClashApiManager.Instance.GetClashProxyGroups();
-        if (proxyGroups != null && proxyGroups.Count > 0)
+        if (proxyGroups is not null && proxyGroups.Count > 0)
         {
             foreach (var it in proxyGroups)
             {
@@ -197,7 +197,7 @@ public class ClashProxiesViewModel : MyReactiveObject
                     continue;
                 }
                 var item = _proxies[it.name];
-                if (!Global.allowSelectType.Contains(item.type.ToLower()))
+                if (!AppConfig.allowSelectType.Contains(item.type.ToLower()))
                 {
                     continue;
                 }
@@ -213,12 +213,12 @@ public class ClashProxiesViewModel : MyReactiveObject
         //from api
         foreach (var kv in _proxies)
         {
-            if (!Global.allowSelectType.Contains(kv.Value.type.ToLower()))
+            if (!AppConfig.allowSelectType.Contains(kv.Value.type.ToLower()))
             {
                 continue;
             }
             var item = ProxyGroups.FirstOrDefault(t => t.Name == kv.Key);
-            if (item != null && item.Name.IsNotEmpty())
+            if (item is not null && item.Name.IsNotEmpty())
             {
                 continue;
             }
@@ -230,9 +230,9 @@ public class ClashProxiesViewModel : MyReactiveObject
             });
         }
 
-        if (ProxyGroups != null && ProxyGroups.Count > 0)
+        if (ProxyGroups is not null && ProxyGroups.Count > 0)
         {
-            if (selectedName != null && ProxyGroups.Any(t => t.Name == selectedName))
+            if (selectedName is not null && ProxyGroups.Any(t => t.Name == selectedName))
             {
                 SelectedGroup = ProxyGroups.FirstOrDefault(t => t.Name == selectedName);
             }
@@ -260,13 +260,13 @@ public class ClashProxiesViewModel : MyReactiveObject
         {
             return;
         }
-        if (_proxies == null)
+        if (_proxies is null)
         {
             return;
         }
 
         _proxies.TryGetValue(name, out var proxy);
-        if (proxy?.all == null)
+        if (proxy?.all is null)
         {
             return;
         }
@@ -274,7 +274,7 @@ public class ClashProxiesViewModel : MyReactiveObject
         foreach (var item in proxy.all)
         {
             var proxy2 = TryGetProxy(item);
-            if (proxy2 == null)
+            if (proxy2 is null)
             {
                 continue;
             }
@@ -308,24 +308,24 @@ public class ClashProxiesViewModel : MyReactiveObject
 
     private ProxiesItem? TryGetProxy(string name)
     {
-        if (_proxies == null)
+        if (_proxies is null)
         {
             return null;
         }
         _proxies.TryGetValue(name, out var proxy2);
-        if (proxy2 != null)
+        if (proxy2 is not null)
         {
             return proxy2;
         }
         //from providers
-        if (_providers != null)
+        if (_providers is not null)
         {
             foreach (var kv in _providers)
             {
-                if (Global.proxyVehicleType.Contains(kv.Value.vehicleType.ToLower()))
+                if (AppConfig.proxyVehicleType.Contains(kv.Value.vehicleType.ToLower()))
                 {
                     var proxy3 = kv.Value.proxies.FirstOrDefault(t => t.name == name);
-                    if (proxy3 != null)
+                    if (proxy3 is not null)
                     {
                         return proxy3;
                     }
@@ -337,11 +337,11 @@ public class ClashProxiesViewModel : MyReactiveObject
 
     public async Task SetActiveProxy()
     {
-        if (SelectedGroup == null || SelectedGroup.Name.IsNullOrEmpty())
+        if (SelectedGroup is null || SelectedGroup.Name.IsNullOrEmpty())
         {
             return;
         }
-        if (SelectedDetail == null || SelectedDetail.Name.IsNullOrEmpty())
+        if (SelectedDetail is null || SelectedDetail.Name.IsNullOrEmpty())
         {
             return;
         }
@@ -356,7 +356,7 @@ public class ClashProxiesViewModel : MyReactiveObject
             return;
         }
         var selectedProxy = TryGetProxy(name);
-        if (selectedProxy == null || selectedProxy.type != "Selector")
+        if (selectedProxy is null || selectedProxy.type != "Selector")
         {
             NoticeManager.Instance.Enqueue(ResUI.OperationFailed);
             return;
@@ -366,7 +366,7 @@ public class ClashProxiesViewModel : MyReactiveObject
 
         selectedProxy.now = nameNode;
         var group = ProxyGroups.FirstOrDefault(it => it.Name == SelectedGroup.Name);
-        if (group != null)
+        if (group is not null)
         {
             group.Now = nameNode;
             var group2 = JsonUtils.DeepCopy(group);
@@ -381,7 +381,7 @@ public class ClashProxiesViewModel : MyReactiveObject
     {
         ClashApiManager.Instance.ClashProxiesDelayTest(blAll, ProxyDetails.ToList(), async (item, result) =>
         {
-            if (item == null || result.IsNullOrEmpty())
+            if (item is null || result.IsNullOrEmpty())
             {
                 return;
             }
@@ -400,18 +400,18 @@ public class ClashProxiesViewModel : MyReactiveObject
     public async Task ProxiesDelayTestResult(SpeedTestResult result)
     {
         var detail = ProxyDetails.FirstOrDefault(it => it.Name == result.IndexId);
-        if (detail == null)
+        if (detail is null)
         {
             return;
         }
 
         var dicResult = JsonUtils.Deserialize<Dictionary<string, object>>(result.Delay);
-        if (dicResult != null && dicResult.TryGetValue("delay", out var value))
+        if (dicResult is not null && dicResult.TryGetValue("delay", out var value))
         {
             detail.Delay = Convert.ToInt32(value.ToString());
             detail.DelayName = $"{detail.Delay}ms";
         }
-        else if (dicResult != null && dicResult.TryGetValue("message", out var value1))
+        else if (dicResult is not null && dicResult.TryGetValue("message", out var value1))
         {
             detail.Delay = _delayTimeout;
             detail.DelayName = $"{value1}";
@@ -441,11 +441,11 @@ public class ClashProxiesViewModel : MyReactiveObject
                   {
                       continue;
                   }
-                  if (_config.ClashUIItem.ProxiesAutoDelayTestInterval <= 0)
+                  if (Config.ClashUIItem.ProxiesAutoDelayTestInterval <= 0)
                   {
                       continue;
                   }
-                  if (numOfExecuted % _config.ClashUIItem.ProxiesAutoDelayTestInterval != 0)
+                  if (numOfExecuted % Config.ClashUIItem.ProxiesAutoDelayTestInterval != 0)
                   {
                       continue;
                   }

v2rayN/ServiceLib/ViewModels/DNSSettingViewModel.cs

@@ -35,20 +35,20 @@ public class DNSSettingViewModel : MyReactiveObject
 
     public DNSSettingViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
         SaveCmd = ReactiveCommand.CreateFromTask(SaveSettingAsync);
 
         ImportDefConfig4V2rayCompatibleCmd = ReactiveCommand.CreateFromTask(async () =>
         {
-            NormalDNSCompatible = EmbedUtils.GetEmbedText(Global.DNSV2rayNormalFileName);
+            NormalDNSCompatible = EmbedUtils.GetEmbedText(AppConfig.DNSV2rayNormalFileName);
             await Task.CompletedTask;
         });
 
         ImportDefConfig4SingboxCompatibleCmd = ReactiveCommand.CreateFromTask(async () =>
         {
-            NormalDNS2Compatible = EmbedUtils.GetEmbedText(Global.DNSSingboxNormalFileName);
-            TunDNS2Compatible = EmbedUtils.GetEmbedText(Global.TunSingboxDNSFileName);
+            NormalDNS2Compatible = EmbedUtils.GetEmbedText(AppConfig.DNSSingboxNormalFileName);
+            TunDNS2Compatible = EmbedUtils.GetEmbedText(AppConfig.TunSingboxDNSFileName);
             await Task.CompletedTask;
         });
 
@@ -61,8 +61,8 @@ public class DNSSettingViewModel : MyReactiveObject
 
     private async Task Init()
     {
-        _config = AppManager.Instance.Config;
-        var item = _config.SimpleDNSItem;
+        Config = AppManager.Instance.Config;
+        var item = Config.SimpleDNSItem;
         UseSystemHosts = item.UseSystemHosts;
         AddCommonHosts = item.AddCommonHosts;
         FakeIP = item.FakeIP;
@@ -93,23 +93,23 @@ public class DNSSettingViewModel : MyReactiveObject
 
     private async Task SaveSettingAsync()
     {
-        _config.SimpleDNSItem.UseSystemHosts = UseSystemHosts;
-        _config.SimpleDNSItem.AddCommonHosts = AddCommonHosts;
-        _config.SimpleDNSItem.FakeIP = FakeIP;
-        _config.SimpleDNSItem.BlockBindingQuery = BlockBindingQuery;
-        _config.SimpleDNSItem.DirectDNS = DirectDNS;
-        _config.SimpleDNSItem.RemoteDNS = RemoteDNS;
-        _config.SimpleDNSItem.BootstrapDNS = BootstrapDNS;
-        _config.SimpleDNSItem.RayStrategy4Freedom = RayStrategy4Freedom;
-        _config.SimpleDNSItem.SingboxStrategy4Direct = SingboxStrategy4Direct;
-        _config.SimpleDNSItem.SingboxStrategy4Proxy = SingboxStrategy4Proxy;
-        _config.SimpleDNSItem.Hosts = Hosts;
-        _config.SimpleDNSItem.DirectExpectedIPs = DirectExpectedIPs;
+        Config.SimpleDNSItem.UseSystemHosts = UseSystemHosts;
+        Config.SimpleDNSItem.AddCommonHosts = AddCommonHosts;
+        Config.SimpleDNSItem.FakeIP = FakeIP;
+        Config.SimpleDNSItem.BlockBindingQuery = BlockBindingQuery;
+        Config.SimpleDNSItem.DirectDNS = DirectDNS;
+        Config.SimpleDNSItem.RemoteDNS = RemoteDNS;
+        Config.SimpleDNSItem.BootstrapDNS = BootstrapDNS;
+        Config.SimpleDNSItem.RayStrategy4Freedom = RayStrategy4Freedom;
+        Config.SimpleDNSItem.SingboxStrategy4Direct = SingboxStrategy4Direct;
+        Config.SimpleDNSItem.SingboxStrategy4Proxy = SingboxStrategy4Proxy;
+        Config.SimpleDNSItem.Hosts = Hosts;
+        Config.SimpleDNSItem.DirectExpectedIPs = DirectExpectedIPs;
 
         if (NormalDNSCompatible.IsNotEmpty())
         {
             var obj = JsonUtils.ParseJson(NormalDNSCompatible);
-            if (obj != null && obj["servers"] != null)
+            if (obj is not null && obj["servers"] is not null)
             {
             }
             else
@@ -124,7 +124,7 @@ public class DNSSettingViewModel : MyReactiveObject
         if (NormalDNS2Compatible.IsNotEmpty())
         {
             var obj2 = JsonUtils.Deserialize<Dns4Sbox>(NormalDNS2Compatible);
-            if (obj2 == null)
+            if (obj2 is null)
             {
                 NoticeManager.Instance.Enqueue(ResUI.FillCorrectDNSText);
                 return;
@@ -133,7 +133,7 @@ public class DNSSettingViewModel : MyReactiveObject
         if (TunDNS2Compatible.IsNotEmpty())
         {
             var obj2 = JsonUtils.Deserialize<Dns4Sbox>(TunDNS2Compatible);
-            if (obj2 == null)
+            if (obj2 is null)
             {
                 NoticeManager.Instance.Enqueue(ResUI.FillCorrectDNSText);
                 return;
@@ -146,7 +146,7 @@ public class DNSSettingViewModel : MyReactiveObject
         item1.DomainDNSAddress = DomainDNSAddressCompatible;
         item1.UseSystemHosts = UseSystemHostsCompatible;
         item1.NormalDNS = NormalDNSCompatible;
-        await ConfigHandler.SaveDNSItems(_config, item1);
+        await ConfigHandler.SaveDNSItems(Config, item1);
 
         var item2 = await AppManager.Instance.GetDNSItem(ECoreType.sing_box);
         item2.Enabled = SBCustomDNSEnableCompatible;
@@ -154,12 +154,12 @@ public class DNSSettingViewModel : MyReactiveObject
         item2.DomainDNSAddress = DomainDNSAddress2Compatible;
         item2.NormalDNS = JsonUtils.Serialize(JsonUtils.ParseJson(NormalDNS2Compatible));
         item2.TunDNS = JsonUtils.Serialize(JsonUtils.ParseJson(TunDNS2Compatible));
-        await ConfigHandler.SaveDNSItems(_config, item2);
+        await ConfigHandler.SaveDNSItems(Config, item2);
 
-        await ConfigHandler.SaveConfig(_config);
-        if (_updateView != null)
+        await ConfigHandler.SaveConfig(Config);
+        if (UpdateView is not null)
         {
-            await _updateView(EViewAction.CloseWindow, null);
+            await UpdateView(EViewAction.CloseWindow, null);
         }
     }
 }

v2rayN/ServiceLib/ViewModels/FullConfigTemplateViewModel.cs

@@ -37,8 +37,8 @@ public class FullConfigTemplateViewModel : MyReactiveObject
 
     public FullConfigTemplateViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
         SaveCmd = ReactiveCommand.CreateFromTask(async () =>
         {
             await SaveSettingAsync();
@@ -76,7 +76,7 @@ public class FullConfigTemplateViewModel : MyReactiveObject
         }
 
         NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
-        _ = _updateView?.Invoke(EViewAction.CloseWindow, null);
+        _ = UpdateView?.Invoke(EViewAction.CloseWindow, null);
     }
 
     private async Task<bool> SaveXrayConfigAsync()
@@ -90,7 +90,7 @@ public class FullConfigTemplateViewModel : MyReactiveObject
         item.AddProxyOnly = AddProxyOnly4Ray;
         item.ProxyDetour = ProxyDetour4Ray;
 
-        await ConfigHandler.SaveFullConfigTemplate(_config, item);
+        await ConfigHandler.SaveFullConfigTemplate(Config, item);
         return true;
     }
 
@@ -107,7 +107,7 @@ public class FullConfigTemplateViewModel : MyReactiveObject
         item.AddProxyOnly = AddProxyOnly4Singbox;
         item.ProxyDetour = ProxyDetour4Singbox;
 
-        await ConfigHandler.SaveFullConfigTemplate(_config, item);
+        await ConfigHandler.SaveFullConfigTemplate(Config, item);
         return true;
     }
 }

v2rayN/ServiceLib/ViewModels/GlobalHotkeySettingViewModel.cs

@@ -8,10 +8,10 @@ public class GlobalHotkeySettingViewModel : MyReactiveObject
 
     public GlobalHotkeySettingViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
-        _globalHotkeys = JsonUtils.DeepCopy(_config.GlobalHotkeys);
+        _globalHotkeys = JsonUtils.DeepCopy(Config.GlobalHotkeys);
 
         SaveCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -22,7 +22,7 @@ public class GlobalHotkeySettingViewModel : MyReactiveObject
     public KeyEventItem GetKeyEventItem(EGlobalHotkey eg)
     {
         var item = _globalHotkeys.FirstOrDefault((it) => it.EGlobalHotkey == eg);
-        if (item != null)
+        if (item is not null)
         {
             return item;
         }
@@ -47,11 +47,11 @@ public class GlobalHotkeySettingViewModel : MyReactiveObject
 
     private async Task SaveSettingAsync()
     {
-        _config.GlobalHotkeys = _globalHotkeys;
+        Config.GlobalHotkeys = _globalHotkeys;
 
-        if (await ConfigHandler.SaveConfig(_config) == 0)
+        if (await ConfigHandler.SaveConfig(Config) == 0)
         {
-            _updateView?.Invoke(EViewAction.CloseWindow, null);
+            UpdateView?.Invoke(EViewAction.CloseWindow, null);
         }
         else
         {

v2rayN/ServiceLib/ViewModels/MainWindowViewModel.cs

@@ -70,8 +70,8 @@ public class MainWindowViewModel : MyReactiveObject
 
     public MainWindowViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
         BlIsWindows = Utils.IsWindows();
 
         #region WhenAnyValue && ReactiveCommand
@@ -158,11 +158,11 @@ public class MainWindowViewModel : MyReactiveObject
         });
         SubGroupUpdateCmd = ReactiveCommand.CreateFromTask(async () =>
         {
-            await UpdateSubscriptionProcess(_config.SubIndexId, false);
+            await UpdateSubscriptionProcess(Config.SubIndexId, false);
         });
         SubGroupUpdateViaProxyCmd = ReactiveCommand.CreateFromTask(async () =>
         {
-            await UpdateSubscriptionProcess(_config.SubIndexId, true);
+            await UpdateSubscriptionProcess(Config.SubIndexId, true);
         });
 
         //Setting
@@ -184,7 +184,7 @@ public class MainWindowViewModel : MyReactiveObject
         });
         GlobalHotkeySettingCmd = ReactiveCommand.CreateFromTask(async () =>
         {
-            if (await _updateView?.Invoke(EViewAction.GlobalHotkeySettingWindow, null) == true)
+            if (await UpdateView?.Invoke(EViewAction.GlobalHotkeySettingWindow, null) == true)
             {
                 NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
             }
@@ -255,17 +255,17 @@ public class MainWindowViewModel : MyReactiveObject
     {
         AppManager.Instance.ShowInTaskbar = true;
 
-        //await ConfigHandler.InitBuiltinRouting(_config);
-        await ConfigHandler.InitBuiltinDNS(_config);
-        await ConfigHandler.InitBuiltinFullConfigTemplate(_config);
+        //await ConfigHandler.InitBuiltinRouting(Config);
+        await ConfigHandler.InitBuiltinDNS(Config);
+        await ConfigHandler.InitBuiltinFullConfigTemplate(Config);
         await ProfileExManager.Instance.Init();
         await ProfileGroupItemManager.Instance.Init();
-        await CoreManager.Instance.Init(_config, UpdateHandler);
-        TaskManager.Instance.RegUpdateTask(_config, UpdateTaskHandler);
+        await CoreManager.Instance.Init(Config, UpdateHandler);
+        TaskManager.Instance.RegUpdateTask(Config, UpdateTaskHandler);
 
-        if (_config.GuiItem.EnableStatistics || _config.GuiItem.DisplayRealTimeSpeed)
+        if (Config.GuiItem.EnableStatistics || Config.GuiItem.DisplayRealTimeSpeed)
         {
-            await StatisticsManager.Instance.Init(_config, UpdateStatisticsHandler);
+            await StatisticsManager.Instance.Init(Config, UpdateStatisticsHandler);
         }
         await RefreshServers();
 
@@ -291,13 +291,13 @@ public class MainWindowViewModel : MyReactiveObject
         NoticeManager.Instance.SendMessageEx(msg);
         if (success)
         {
-            var indexIdOld = _config.IndexId;
+            var indexIdOld = Config.IndexId;
             await RefreshServers();
-            if (indexIdOld != _config.IndexId)
+            if (indexIdOld != Config.IndexId)
             {
                 await Reload();
             }
-            if (_config.UiItem.EnableAutoAdjustMainLvColWidth)
+            if (Config.UiItem.EnableAutoAdjustMainLvColWidth)
             {
                 AppEvents.AdjustMainLvColWidthRequested.Publish();
             }
@@ -338,7 +338,7 @@ public class MainWindowViewModel : MyReactiveObject
     {
         ProfileItem item = new()
         {
-            Subid = _config.SubIndexId,
+            Subid = Config.SubIndexId,
             ConfigType = eConfigType,
             IsSub = false,
         };
@@ -346,20 +346,20 @@ public class MainWindowViewModel : MyReactiveObject
         bool? ret = false;
         if (eConfigType == EConfigType.Custom)
         {
-            ret = await _updateView?.Invoke(EViewAction.AddServer2Window, item);
+            ret = await UpdateView?.Invoke(EViewAction.AddServer2Window, item);
         }
         else if (eConfigType.IsGroupType())
         {
-            ret = await _updateView?.Invoke(EViewAction.AddGroupServerWindow, item);
+            ret = await UpdateView?.Invoke(EViewAction.AddGroupServerWindow, item);
         }
         else
         {
-            ret = await _updateView?.Invoke(EViewAction.AddServerWindow, item);
+            ret = await UpdateView?.Invoke(EViewAction.AddServerWindow, item);
         }
         if (ret == true)
         {
             await RefreshServers();
-            if (item.IndexId == _config.IndexId)
+            if (item.IndexId == Config.IndexId)
             {
                 await Reload();
             }
@@ -368,12 +368,12 @@ public class MainWindowViewModel : MyReactiveObject
 
     public async Task AddServerViaClipboardAsync(string? clipboardData)
     {
-        if (clipboardData == null)
+        if (clipboardData is null)
         {
-            await _updateView?.Invoke(EViewAction.AddServerViaClipboard, null);
+            await UpdateView?.Invoke(EViewAction.AddServerViaClipboard, null);
             return;
         }
-        var ret = await ConfigHandler.AddBatchServers(_config, clipboardData, _config.SubIndexId, false);
+        var ret = await ConfigHandler.AddBatchServers(Config, clipboardData, Config.SubIndexId, false);
         if (ret > 0)
         {
             RefreshSubscriptions();
@@ -388,7 +388,7 @@ public class MainWindowViewModel : MyReactiveObject
 
     public async Task AddServerViaScanAsync()
     {
-        _updateView?.Invoke(EViewAction.ScanScreenTask, null);
+        UpdateView?.Invoke(EViewAction.ScanScreenTask, null);
         await Task.CompletedTask;
     }
 
@@ -400,7 +400,7 @@ public class MainWindowViewModel : MyReactiveObject
 
     public async Task AddServerViaImageAsync()
     {
-        _updateView?.Invoke(EViewAction.ScanImageTask, null);
+        UpdateView?.Invoke(EViewAction.ScanImageTask, null);
         await Task.CompletedTask;
     }
 
@@ -423,7 +423,7 @@ public class MainWindowViewModel : MyReactiveObject
         }
         else
         {
-            var ret = await ConfigHandler.AddBatchServers(_config, result, _config.SubIndexId, false);
+            var ret = await ConfigHandler.AddBatchServers(Config, result, Config.SubIndexId, false);
             if (ret > 0)
             {
                 RefreshSubscriptions();
@@ -443,7 +443,7 @@ public class MainWindowViewModel : MyReactiveObject
 
     private async Task SubSettingAsync()
     {
-        if (await _updateView?.Invoke(EViewAction.SubSettingWindow, null) == true)
+        if (await UpdateView?.Invoke(EViewAction.SubSettingWindow, null) == true)
         {
             RefreshSubscriptions();
         }
@@ -451,7 +451,7 @@ public class MainWindowViewModel : MyReactiveObject
 
     public async Task UpdateSubscriptionProcess(string subId, bool blProxy)
     {
-        await Task.Run(async () => await SubscriptionHandler.UpdateProcess(_config, subId, blProxy, UpdateTaskHandler));
+        await Task.Run(async () => await SubscriptionHandler.UpdateProcess(Config, subId, blProxy, UpdateTaskHandler));
     }
 
     #endregion Subscription
@@ -460,7 +460,7 @@ public class MainWindowViewModel : MyReactiveObject
 
     private async Task OptionSettingAsync()
     {
-        var ret = await _updateView?.Invoke(EViewAction.OptionSettingWindow, null);
+        var ret = await UpdateView?.Invoke(EViewAction.OptionSettingWindow, null);
         if (ret == true)
         {
             AppEvents.InboundDisplayRequested.Publish();
@@ -470,10 +470,10 @@ public class MainWindowViewModel : MyReactiveObject
 
     private async Task RoutingSettingAsync()
     {
-        var ret = await _updateView?.Invoke(EViewAction.RoutingSettingWindow, null);
+        var ret = await UpdateView?.Invoke(EViewAction.RoutingSettingWindow, null);
         if (ret == true)
         {
-            await ConfigHandler.InitBuiltinRouting(_config);
+            await ConfigHandler.InitBuiltinRouting(Config);
             AppEvents.RoutingsMenuRefreshRequested.Publish();
             await Reload();
         }
@@ -481,7 +481,7 @@ public class MainWindowViewModel : MyReactiveObject
 
     private async Task DNSSettingAsync()
     {
-        var ret = await _updateView?.Invoke(EViewAction.DNSSettingWindow, null);
+        var ret = await UpdateView?.Invoke(EViewAction.DNSSettingWindow, null);
         if (ret == true)
         {
             await Reload();
@@ -490,7 +490,7 @@ public class MainWindowViewModel : MyReactiveObject
 
     private async Task FullConfigTemplateAsync()
     {
-        var ret = await _updateView?.Invoke(EViewAction.FullConfigTemplateWindow, null);
+        var ret = await UpdateView?.Invoke(EViewAction.FullConfigTemplateWindow, null);
         if (ret == true)
         {
             await Reload();
@@ -541,7 +541,7 @@ public class MainWindowViewModel : MyReactiveObject
         {
             SetReloadEnabled(false);
 
-            var msgs = await ActionPrecheckManager.Instance.Check(_config.IndexId);
+            var msgs = await ActionPrecheckManager.Instance.Check(Config.IndexId);
             if (msgs.Count > 0)
             {
                 foreach (var msg in msgs)
@@ -555,7 +555,7 @@ public class MainWindowViewModel : MyReactiveObject
             await Task.Run(async () =>
             {
                 await LoadCore();
-                await SysProxyHandler.UpdateSysProxy(_config, false);
+                await SysProxyHandler.UpdateSysProxy(Config, false);
                 await Task.Delay(1000);
             });
             AppEvents.TestServerRequested.Publish();
@@ -597,7 +597,7 @@ public class MainWindowViewModel : MyReactiveObject
 
     private async Task LoadCore()
     {
-        var node = await ConfigHandler.GetDefaultServer(_config);
+        var node = await ConfigHandler.GetDefaultServer(Config);
         await CoreManager.Instance.LoadCore(node);
     }
 
@@ -607,12 +607,12 @@ public class MainWindowViewModel : MyReactiveObject
 
     public async Task ApplyRegionalPreset(EPresetType type)
     {
-        await ConfigHandler.ApplyRegionalPreset(_config, type);
-        await ConfigHandler.InitRouting(_config);
+        await ConfigHandler.ApplyRegionalPreset(Config, type);
+        await ConfigHandler.InitRouting(Config);
         AppEvents.RoutingsMenuRefreshRequested.Publish();
 
-        await ConfigHandler.SaveConfig(_config);
-        await new UpdateService(_config, UpdateTaskHandler).UpdateGeoFileAll();
+        await ConfigHandler.SaveConfig(Config);
+        await new UpdateService(Config, UpdateTaskHandler).UpdateGeoFileAll();
         await Reload();
     }
 

v2rayN/ServiceLib/ViewModels/MsgViewModel.cs

@@ -15,10 +15,10 @@ public class MsgViewModel : MyReactiveObject
 
     public MsgViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
-        MsgFilter = _config.MsgUIItem.MainMsgFilter ?? string.Empty;
-        AutoRefresh = _config.MsgUIItem.AutoRefresh ?? true;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
+        MsgFilter = Config.MsgUIItem.MainMsgFilter ?? string.Empty;
+        AutoRefresh = Config.MsgUIItem.AutoRefresh ?? true;
 
         this.WhenAnyValue(
            x => x.MsgFilter)
@@ -27,7 +27,7 @@ public class MsgViewModel : MyReactiveObject
         this.WhenAnyValue(
           x => x.AutoRefresh,
           y => y == true)
-              .Subscribe(c => _config.MsgUIItem.AutoRefresh = AutoRefresh);
+              .Subscribe(c => Config.MsgUIItem.AutoRefresh = AutoRefresh);
 
         AppEvents.SendMsgViewRequested
          .AsObservable()
@@ -64,7 +64,7 @@ public class MsgViewModel : MyReactiveObject
                 sb.Append(line);
             }
 
-            await _updateView?.Invoke(EViewAction.DispatcherShowMsg, sb.ToString());
+            await UpdateView?.Invoke(EViewAction.DispatcherShowMsg, sb.ToString());
         }
         finally
         {
@@ -105,7 +105,7 @@ public class MsgViewModel : MyReactiveObject
 
     private void DoMsgFilter()
     {
-        _config.MsgUIItem.MainMsgFilter = MsgFilter;
+        Config.MsgUIItem.MainMsgFilter = MsgFilter;
         _lastMsgFilterNotAvailable = false;
     }
 }

v2rayN/ServiceLib/ViewModels/OptionSettingViewModel.cs

@@ -117,8 +117,8 @@ public class OptionSettingViewModel : MyReactiveObject
 
     public OptionSettingViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
         BlIsWindows = Utils.IsWindows();
         BlIsLinux = Utils.IsLinux();
         BlIsIsMacOS = Utils.IsMacOS();
@@ -134,11 +134,11 @@ public class OptionSettingViewModel : MyReactiveObject
 
     private async Task Init()
     {
-        await _updateView?.Invoke(EViewAction.InitSettingFont, null);
+        await UpdateView?.Invoke(EViewAction.InitSettingFont, null);
 
         #region Core
 
-        var inbound = _config.Inbound.First();
+        var inbound = Config.Inbound.First();
         localPort = inbound.LocalPort;
         SecondLocalPortEnabled = inbound.SecondLocalPortEnabled;
         udpEnabled = inbound.UdpEnabled;
@@ -148,80 +148,80 @@ public class OptionSettingViewModel : MyReactiveObject
         newPort4LAN = inbound.NewPort4LAN;
         user = inbound.User;
         pass = inbound.Pass;
-        muxEnabled = _config.CoreBasicItem.MuxEnabled;
-        logEnabled = _config.CoreBasicItem.LogEnabled;
-        loglevel = _config.CoreBasicItem.Loglevel;
-        defAllowInsecure = _config.CoreBasicItem.DefAllowInsecure;
-        defFingerprint = _config.CoreBasicItem.DefFingerprint;
-        defUserAgent = _config.CoreBasicItem.DefUserAgent;
-        mux4SboxProtocol = _config.Mux4SboxItem.Protocol;
-        enableCacheFile4Sbox = _config.CoreBasicItem.EnableCacheFile4Sbox;
-        hyUpMbps = _config.HysteriaItem.UpMbps;
-        hyDownMbps = _config.HysteriaItem.DownMbps;
-        enableFragment = _config.CoreBasicItem.EnableFragment;
+        muxEnabled = Config.CoreBasicItem.MuxEnabled;
+        logEnabled = Config.CoreBasicItem.LogEnabled;
+        loglevel = Config.CoreBasicItem.Loglevel;
+        defAllowInsecure = Config.CoreBasicItem.DefAllowInsecure;
+        defFingerprint = Config.CoreBasicItem.DefFingerprint;
+        defUserAgent = Config.CoreBasicItem.DefUserAgent;
+        mux4SboxProtocol = Config.Mux4SboxItem.Protocol;
+        enableCacheFile4Sbox = Config.CoreBasicItem.EnableCacheFile4Sbox;
+        hyUpMbps = Config.HysteriaItem.UpMbps;
+        hyDownMbps = Config.HysteriaItem.DownMbps;
+        enableFragment = Config.CoreBasicItem.EnableFragment;
 
         #endregion Core
 
         #region Core KCP
 
-        //Kcpmtu = _config.kcpItem.mtu;
-        //Kcptti = _config.kcpItem.tti;
-        //KcpuplinkCapacity = _config.kcpItem.uplinkCapacity;
-        //KcpdownlinkCapacity = _config.kcpItem.downlinkCapacity;
-        //KcpreadBufferSize = _config.kcpItem.readBufferSize;
-        //KcpwriteBufferSize = _config.kcpItem.writeBufferSize;
-        //Kcpcongestion = _config.kcpItem.congestion;
+        //Kcpmtu = Config.kcpItem.mtu;
+        //Kcptti = Config.kcpItem.tti;
+        //KcpuplinkCapacity = Config.kcpItem.uplinkCapacity;
+        //KcpdownlinkCapacity = Config.kcpItem.downlinkCapacity;
+        //KcpreadBufferSize = Config.kcpItem.readBufferSize;
+        //KcpwriteBufferSize = Config.kcpItem.writeBufferSize;
+        //Kcpcongestion = Config.kcpItem.congestion;
 
         #endregion Core KCP
 
         #region UI
 
-        AutoRun = _config.GuiItem.AutoRun;
-        EnableStatistics = _config.GuiItem.EnableStatistics;
-        DisplayRealTimeSpeed = _config.GuiItem.DisplayRealTimeSpeed;
-        KeepOlderDedupl = _config.GuiItem.KeepOlderDedupl;
-        EnableAutoAdjustMainLvColWidth = _config.UiItem.EnableAutoAdjustMainLvColWidth;
-        EnableUpdateSubOnlyRemarksExist = _config.UiItem.EnableUpdateSubOnlyRemarksExist;
-        AutoHideStartup = _config.UiItem.AutoHideStartup;
-        Hide2TrayWhenClose = _config.UiItem.Hide2TrayWhenClose;
-        MacOSShowInDock = _config.UiItem.MacOSShowInDock;
-        EnableDragDropSort = _config.UiItem.EnableDragDropSort;
-        DoubleClick2Activate = _config.UiItem.DoubleClick2Activate;
-        AutoUpdateInterval = _config.GuiItem.AutoUpdateInterval;
-        TrayMenuServersLimit = _config.GuiItem.TrayMenuServersLimit;
-        CurrentFontFamily = _config.UiItem.CurrentFontFamily;
-        SpeedTestTimeout = _config.SpeedTestItem.SpeedTestTimeout;
-        SpeedTestUrl = _config.SpeedTestItem.SpeedTestUrl;
-        MixedConcurrencyCount = _config.SpeedTestItem.MixedConcurrencyCount;
-        SpeedPingTestUrl = _config.SpeedTestItem.SpeedPingTestUrl;
-        EnableHWA = _config.GuiItem.EnableHWA;
-        SubConvertUrl = _config.ConstItem.SubConvertUrl;
-        MainGirdOrientation = (int)_config.UiItem.MainGirdOrientation;
-        GeoFileSourceUrl = _config.ConstItem.GeoSourceUrl;
-        SrsFileSourceUrl = _config.ConstItem.SrsSourceUrl;
-        RoutingRulesSourceUrl = _config.ConstItem.RouteRulesTemplateSourceUrl;
-        IPAPIUrl = _config.SpeedTestItem.IPAPIUrl;
+        AutoRun = Config.GuiItem.AutoRun;
+        EnableStatistics = Config.GuiItem.EnableStatistics;
+        DisplayRealTimeSpeed = Config.GuiItem.DisplayRealTimeSpeed;
+        KeepOlderDedupl = Config.GuiItem.KeepOlderDedupl;
+        EnableAutoAdjustMainLvColWidth = Config.UiItem.EnableAutoAdjustMainLvColWidth;
+        EnableUpdateSubOnlyRemarksExist = Config.UiItem.EnableUpdateSubOnlyRemarksExist;
+        AutoHideStartup = Config.UiItem.AutoHideStartup;
+        Hide2TrayWhenClose = Config.UiItem.Hide2TrayWhenClose;
+        MacOSShowInDock = Config.UiItem.MacOSShowInDock;
+        EnableDragDropSort = Config.UiItem.EnableDragDropSort;
+        DoubleClick2Activate = Config.UiItem.DoubleClick2Activate;
+        AutoUpdateInterval = Config.GuiItem.AutoUpdateInterval;
+        TrayMenuServersLimit = Config.GuiItem.TrayMenuServersLimit;
+        CurrentFontFamily = Config.UiItem.CurrentFontFamily;
+        SpeedTestTimeout = Config.SpeedTestItem.SpeedTestTimeout;
+        SpeedTestUrl = Config.SpeedTestItem.SpeedTestUrl;
+        MixedConcurrencyCount = Config.SpeedTestItem.MixedConcurrencyCount;
+        SpeedPingTestUrl = Config.SpeedTestItem.SpeedPingTestUrl;
+        EnableHWA = Config.GuiItem.EnableHWA;
+        SubConvertUrl = Config.ConstItem.SubConvertUrl;
+        MainGirdOrientation = (int)Config.UiItem.MainGirdOrientation;
+        GeoFileSourceUrl = Config.ConstItem.GeoSourceUrl;
+        SrsFileSourceUrl = Config.ConstItem.SrsSourceUrl;
+        RoutingRulesSourceUrl = Config.ConstItem.RouteRulesTemplateSourceUrl;
+        IPAPIUrl = Config.SpeedTestItem.IPAPIUrl;
 
         #endregion UI
 
         #region System proxy
 
-        notProxyLocalAddress = _config.SystemProxyItem.NotProxyLocalAddress;
-        systemProxyAdvancedProtocol = _config.SystemProxyItem.SystemProxyAdvancedProtocol;
-        systemProxyExceptions = _config.SystemProxyItem.SystemProxyExceptions;
-        CustomSystemProxyPacPath = _config.SystemProxyItem.CustomSystemProxyPacPath;
-        CustomSystemProxyScriptPath = _config.SystemProxyItem.CustomSystemProxyScriptPath;
+        notProxyLocalAddress = Config.SystemProxyItem.NotProxyLocalAddress;
+        systemProxyAdvancedProtocol = Config.SystemProxyItem.SystemProxyAdvancedProtocol;
+        systemProxyExceptions = Config.SystemProxyItem.SystemProxyExceptions;
+        CustomSystemProxyPacPath = Config.SystemProxyItem.CustomSystemProxyPacPath;
+        CustomSystemProxyScriptPath = Config.SystemProxyItem.CustomSystemProxyScriptPath;
 
         #endregion System proxy
 
         #region Tun mode
 
-        TunAutoRoute = _config.TunModeItem.AutoRoute;
-        TunStrictRoute = _config.TunModeItem.StrictRoute;
-        TunStack = _config.TunModeItem.Stack;
-        TunMtu = _config.TunModeItem.Mtu;
-        TunEnableExInbound = _config.TunModeItem.EnableExInbound;
-        TunEnableIPv6Address = _config.TunModeItem.EnableIPv6Address;
+        TunAutoRoute = Config.TunModeItem.AutoRoute;
+        TunStrictRoute = Config.TunModeItem.StrictRoute;
+        TunStack = Config.TunModeItem.Stack;
+        TunMtu = Config.TunModeItem.Mtu;
+        TunEnableExInbound = Config.TunModeItem.EnableExInbound;
+        TunEnableIPv6Address = Config.TunModeItem.EnableIPv6Address;
 
         #endregion Tun mode
 
@@ -230,25 +230,25 @@ public class OptionSettingViewModel : MyReactiveObject
 
     private async Task InitCoreType()
     {
-        if (_config.CoreTypeItem == null)
+        if (Config.CoreTypeItem is null)
         {
-            _config.CoreTypeItem = new List<CoreTypeItem>();
+            Config.CoreTypeItem = new List<CoreTypeItem>();
         }
 
-        foreach (EConfigType it in Enum.GetValues(typeof(EConfigType)))
+        foreach (var it in Enum.GetValues<EConfigType>().Select(v => v))
         {
-            if (_config.CoreTypeItem.FindIndex(t => t.ConfigType == it) >= 0)
+            if (Config.CoreTypeItem.FindIndex(t => t.ConfigType == it) >= 0)
             {
                 continue;
             }
 
-            _config.CoreTypeItem.Add(new CoreTypeItem()
+            Config.CoreTypeItem.Add(new CoreTypeItem()
             {
                 ConfigType = it,
                 CoreType = ECoreType.Xray
             });
         }
-        _config.CoreTypeItem.ForEach(it =>
+        Config.CoreTypeItem.ForEach(it =>
         {
             var type = it.CoreType.ToString();
             switch ((int)it.ConfigType)
@@ -292,17 +292,17 @@ public class OptionSettingViewModel : MyReactiveObject
     private async Task SaveSettingAsync()
     {
         if (localPort.ToString().IsNullOrEmpty() || !Utils.IsNumeric(localPort.ToString())
-           || localPort <= 0 || localPort >= Global.MaxPort)
+           || localPort <= 0 || localPort >= AppConfig.MaxPort)
         {
             NoticeManager.Instance.Enqueue(ResUI.FillLocalListeningPort);
             return;
         }
-        var needReboot = EnableStatistics != _config.GuiItem.EnableStatistics
-                          || DisplayRealTimeSpeed != _config.GuiItem.DisplayRealTimeSpeed
-                        || EnableDragDropSort != _config.UiItem.EnableDragDropSort
-                        || EnableHWA != _config.GuiItem.EnableHWA
-                        || CurrentFontFamily != _config.UiItem.CurrentFontFamily
-                        || MainGirdOrientation != (int)_config.UiItem.MainGirdOrientation;
+        var needReboot = EnableStatistics != Config.GuiItem.EnableStatistics
+                          || DisplayRealTimeSpeed != Config.GuiItem.DisplayRealTimeSpeed
+                        || EnableDragDropSort != Config.UiItem.EnableDragDropSort
+                        || EnableHWA != Config.GuiItem.EnableHWA
+                        || CurrentFontFamily != Config.UiItem.CurrentFontFamily
+                        || MainGirdOrientation != (int)Config.UiItem.MainGirdOrientation;
 
         //if (Utile.IsNullOrEmpty(Kcpmtu.ToString()) || !Utile.IsNumeric(Kcpmtu.ToString())
         //       || Utile.IsNullOrEmpty(Kcptti.ToString()) || !Utile.IsNumeric(Kcptti.ToString())
@@ -316,83 +316,83 @@ public class OptionSettingViewModel : MyReactiveObject
         //}
 
         //Core
-        _config.Inbound.First().LocalPort = localPort;
-        _config.Inbound.First().SecondLocalPortEnabled = SecondLocalPortEnabled;
-        _config.Inbound.First().UdpEnabled = udpEnabled;
-        _config.Inbound.First().SniffingEnabled = sniffingEnabled;
-        _config.Inbound.First().DestOverride = destOverride?.ToList();
-        _config.Inbound.First().RouteOnly = routeOnly;
-        _config.Inbound.First().AllowLANConn = allowLANConn;
-        _config.Inbound.First().NewPort4LAN = newPort4LAN;
-        _config.Inbound.First().User = user;
-        _config.Inbound.First().Pass = pass;
-        if (_config.Inbound.Count > 1)
+        Config.Inbound.First().LocalPort = localPort;
+        Config.Inbound.First().SecondLocalPortEnabled = SecondLocalPortEnabled;
+        Config.Inbound.First().UdpEnabled = udpEnabled;
+        Config.Inbound.First().SniffingEnabled = sniffingEnabled;
+        Config.Inbound.First().DestOverride = destOverride?.ToList();
+        Config.Inbound.First().RouteOnly = routeOnly;
+        Config.Inbound.First().AllowLANConn = allowLANConn;
+        Config.Inbound.First().NewPort4LAN = newPort4LAN;
+        Config.Inbound.First().User = user;
+        Config.Inbound.First().Pass = pass;
+        if (Config.Inbound.Count > 1)
         {
-            _config.Inbound.RemoveAt(1);
+            Config.Inbound.RemoveAt(1);
         }
-        _config.CoreBasicItem.LogEnabled = logEnabled;
-        _config.CoreBasicItem.Loglevel = loglevel;
-        _config.CoreBasicItem.MuxEnabled = muxEnabled;
-        _config.CoreBasicItem.DefAllowInsecure = defAllowInsecure;
-        _config.CoreBasicItem.DefFingerprint = defFingerprint;
-        _config.CoreBasicItem.DefUserAgent = defUserAgent;
-        _config.Mux4SboxItem.Protocol = mux4SboxProtocol;
-        _config.CoreBasicItem.EnableCacheFile4Sbox = enableCacheFile4Sbox;
-        _config.HysteriaItem.UpMbps = hyUpMbps;
-        _config.HysteriaItem.DownMbps = hyDownMbps;
-        _config.CoreBasicItem.EnableFragment = enableFragment;
+        Config.CoreBasicItem.LogEnabled = logEnabled;
+        Config.CoreBasicItem.Loglevel = loglevel;
+        Config.CoreBasicItem.MuxEnabled = muxEnabled;
+        Config.CoreBasicItem.DefAllowInsecure = defAllowInsecure;
+        Config.CoreBasicItem.DefFingerprint = defFingerprint;
+        Config.CoreBasicItem.DefUserAgent = defUserAgent;
+        Config.Mux4SboxItem.Protocol = mux4SboxProtocol;
+        Config.CoreBasicItem.EnableCacheFile4Sbox = enableCacheFile4Sbox;
+        Config.HysteriaItem.UpMbps = hyUpMbps;
+        Config.HysteriaItem.DownMbps = hyDownMbps;
+        Config.CoreBasicItem.EnableFragment = enableFragment;
 
-        _config.GuiItem.AutoRun = AutoRun;
-        _config.GuiItem.EnableStatistics = EnableStatistics;
-        _config.GuiItem.DisplayRealTimeSpeed = DisplayRealTimeSpeed;
-        _config.GuiItem.KeepOlderDedupl = KeepOlderDedupl;
-        _config.UiItem.EnableAutoAdjustMainLvColWidth = EnableAutoAdjustMainLvColWidth;
-        _config.UiItem.EnableUpdateSubOnlyRemarksExist = EnableUpdateSubOnlyRemarksExist;
-        _config.UiItem.AutoHideStartup = AutoHideStartup;
-        _config.UiItem.Hide2TrayWhenClose = Hide2TrayWhenClose;
-        _config.UiItem.MacOSShowInDock = MacOSShowInDock;
-        _config.GuiItem.AutoUpdateInterval = AutoUpdateInterval;
-        _config.UiItem.EnableDragDropSort = EnableDragDropSort;
-        _config.UiItem.DoubleClick2Activate = DoubleClick2Activate;
-        _config.GuiItem.TrayMenuServersLimit = TrayMenuServersLimit;
-        _config.UiItem.CurrentFontFamily = CurrentFontFamily;
-        _config.SpeedTestItem.SpeedTestTimeout = SpeedTestTimeout;
-        _config.SpeedTestItem.MixedConcurrencyCount = MixedConcurrencyCount;
-        _config.SpeedTestItem.SpeedTestUrl = SpeedTestUrl;
-        _config.SpeedTestItem.SpeedPingTestUrl = SpeedPingTestUrl;
-        _config.GuiItem.EnableHWA = EnableHWA;
-        _config.ConstItem.SubConvertUrl = SubConvertUrl;
-        _config.UiItem.MainGirdOrientation = (EGirdOrientation)MainGirdOrientation;
-        _config.ConstItem.GeoSourceUrl = GeoFileSourceUrl;
-        _config.ConstItem.SrsSourceUrl = SrsFileSourceUrl;
-        _config.ConstItem.RouteRulesTemplateSourceUrl = RoutingRulesSourceUrl;
-        _config.SpeedTestItem.IPAPIUrl = IPAPIUrl;
+        Config.GuiItem.AutoRun = AutoRun;
+        Config.GuiItem.EnableStatistics = EnableStatistics;
+        Config.GuiItem.DisplayRealTimeSpeed = DisplayRealTimeSpeed;
+        Config.GuiItem.KeepOlderDedupl = KeepOlderDedupl;
+        Config.UiItem.EnableAutoAdjustMainLvColWidth = EnableAutoAdjustMainLvColWidth;
+        Config.UiItem.EnableUpdateSubOnlyRemarksExist = EnableUpdateSubOnlyRemarksExist;
+        Config.UiItem.AutoHideStartup = AutoHideStartup;
+        Config.UiItem.Hide2TrayWhenClose = Hide2TrayWhenClose;
+        Config.UiItem.MacOSShowInDock = MacOSShowInDock;
+        Config.GuiItem.AutoUpdateInterval = AutoUpdateInterval;
+        Config.UiItem.EnableDragDropSort = EnableDragDropSort;
+        Config.UiItem.DoubleClick2Activate = DoubleClick2Activate;
+        Config.GuiItem.TrayMenuServersLimit = TrayMenuServersLimit;
+        Config.UiItem.CurrentFontFamily = CurrentFontFamily;
+        Config.SpeedTestItem.SpeedTestTimeout = SpeedTestTimeout;
+        Config.SpeedTestItem.MixedConcurrencyCount = MixedConcurrencyCount;
+        Config.SpeedTestItem.SpeedTestUrl = SpeedTestUrl;
+        Config.SpeedTestItem.SpeedPingTestUrl = SpeedPingTestUrl;
+        Config.GuiItem.EnableHWA = EnableHWA;
+        Config.ConstItem.SubConvertUrl = SubConvertUrl;
+        Config.UiItem.MainGirdOrientation = (EGirdOrientation)MainGirdOrientation;
+        Config.ConstItem.GeoSourceUrl = GeoFileSourceUrl;
+        Config.ConstItem.SrsSourceUrl = SrsFileSourceUrl;
+        Config.ConstItem.RouteRulesTemplateSourceUrl = RoutingRulesSourceUrl;
+        Config.SpeedTestItem.IPAPIUrl = IPAPIUrl;
 
         //systemProxy
-        _config.SystemProxyItem.SystemProxyExceptions = systemProxyExceptions;
-        _config.SystemProxyItem.NotProxyLocalAddress = notProxyLocalAddress;
-        _config.SystemProxyItem.SystemProxyAdvancedProtocol = systemProxyAdvancedProtocol;
-        _config.SystemProxyItem.CustomSystemProxyPacPath = CustomSystemProxyPacPath;
-        _config.SystemProxyItem.CustomSystemProxyScriptPath = CustomSystemProxyScriptPath;
+        Config.SystemProxyItem.SystemProxyExceptions = systemProxyExceptions;
+        Config.SystemProxyItem.NotProxyLocalAddress = notProxyLocalAddress;
+        Config.SystemProxyItem.SystemProxyAdvancedProtocol = systemProxyAdvancedProtocol;
+        Config.SystemProxyItem.CustomSystemProxyPacPath = CustomSystemProxyPacPath;
+        Config.SystemProxyItem.CustomSystemProxyScriptPath = CustomSystemProxyScriptPath;
 
         //tun mode
-        _config.TunModeItem.AutoRoute = TunAutoRoute;
-        _config.TunModeItem.StrictRoute = TunStrictRoute;
-        _config.TunModeItem.Stack = TunStack;
-        _config.TunModeItem.Mtu = TunMtu;
-        _config.TunModeItem.EnableExInbound = TunEnableExInbound;
-        _config.TunModeItem.EnableIPv6Address = TunEnableIPv6Address;
+        Config.TunModeItem.AutoRoute = TunAutoRoute;
+        Config.TunModeItem.StrictRoute = TunStrictRoute;
+        Config.TunModeItem.Stack = TunStack;
+        Config.TunModeItem.Mtu = TunMtu;
+        Config.TunModeItem.EnableExInbound = TunEnableExInbound;
+        Config.TunModeItem.EnableIPv6Address = TunEnableIPv6Address;
 
         //coreType
         await SaveCoreType();
 
-        if (await ConfigHandler.SaveConfig(_config) == 0)
+        if (await ConfigHandler.SaveConfig(Config) == 0)
         {
-            await AutoStartupHandler.UpdateTask(_config);
+            await AutoStartupHandler.UpdateTask(Config);
             AppManager.Instance.Reset();
 
             NoticeManager.Instance.Enqueue(needReboot ? ResUI.NeedRebootTips : ResUI.OperationSuccess);
-            _updateView?.Invoke(EViewAction.CloseWindow, null);
+            UpdateView?.Invoke(EViewAction.CloseWindow, null);
         }
         else
         {
@@ -402,10 +402,10 @@ public class OptionSettingViewModel : MyReactiveObject
 
     private async Task SaveCoreType()
     {
-        for (var k = 1; k <= _config.CoreTypeItem.Count; k++)
+        for (var k = 1; k <= Config.CoreTypeItem.Count; k++)
         {
-            var item = _config.CoreTypeItem[k - 1];
-            var type = string.Empty;
+            var item = Config.CoreTypeItem[k - 1];
+            string type;
             switch ((int)item.ConfigType)
             {
                 case 1:

v2rayN/ServiceLib/ViewModels/ProfilesSelectViewModel.cs

@@ -5,14 +5,9 @@ public class ProfilesSelectViewModel : MyReactiveObject
     #region private prop
 
     private string _serverFilter = string.Empty;
-    private Dictionary<string, bool> _dicHeaderSort = new();
+    private readonly Dictionary<string, bool> _dicHeaderSort = new();
     private string _subIndexId = string.Empty;
 
-    // ConfigType filter state: default include-mode with all types selected
-    private List<EConfigType> _filterConfigTypes = new();
-
-    private bool _filterExclude = false;
-
     #endregion private prop
 
     #region ObservableCollection
@@ -35,16 +30,16 @@ public class ProfilesSelectViewModel : MyReactiveObject
     // Include/Exclude filter for ConfigType
     public List<EConfigType> FilterConfigTypes
     {
-        get => _filterConfigTypes;
-        set => this.RaiseAndSetIfChanged(ref _filterConfigTypes, value);
-    }
+        get;
+        set => this.RaiseAndSetIfChanged(ref field, value);
+    } = new();
 
     [Reactive]
     public bool FilterExclude
     {
-        get => _filterExclude;
-        set => this.RaiseAndSetIfChanged(ref _filterExclude, value);
-    }
+        get;
+        set => this.RaiseAndSetIfChanged(ref field, value);
+    } = false;
 
     #endregion ObservableCollection
 
@@ -52,20 +47,20 @@ public class ProfilesSelectViewModel : MyReactiveObject
 
     public ProfilesSelectViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
-        _subIndexId = _config.SubIndexId ?? string.Empty;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
+        _subIndexId = Config.SubIndexId ?? string.Empty;
 
         #region WhenAnyValue && ReactiveCommand
 
         this.WhenAnyValue(
             x => x.SelectedSub,
-            y => y != null && !y.Remarks.IsNullOrEmpty() && _subIndexId != y.Id)
+            y => y is not null && !y.Remarks.IsNullOrEmpty() && _subIndexId != y.Id)
                 .Subscribe(async c => await SubSelectedChangedAsync(c));
 
         this.WhenAnyValue(
           x => x.ServerFilter,
-          y => y != null && _serverFilter != y)
+          y => y is not null && _serverFilter != y)
               .Subscribe(async c => await ServerFilterChanged(c));
 
         // React to ConfigType filter changes
@@ -108,7 +103,7 @@ public class ProfilesSelectViewModel : MyReactiveObject
 
     public bool CanOk()
     {
-        return SelectedProfile != null && !SelectedProfile.IndexId.IsNullOrEmpty();
+        return SelectedProfile is not null && !SelectedProfile.IndexId.IsNullOrEmpty();
     }
 
     public bool SelectFinish()
@@ -117,7 +112,7 @@ public class ProfilesSelectViewModel : MyReactiveObject
         {
             return false;
         }
-        _updateView?.Invoke(EViewAction.CloseWindow, null);
+        UpdateView?.Invoke(EViewAction.CloseWindow, null);
         return true;
     }
 
@@ -135,7 +130,7 @@ public class ProfilesSelectViewModel : MyReactiveObject
 
         await RefreshServers();
 
-        await _updateView?.Invoke(EViewAction.ProfilesFocus, null);
+        await UpdateView?.Invoke(EViewAction.ProfilesFocus, null);
     }
 
     private async Task ServerFilterChanged(bool c)
@@ -158,14 +153,14 @@ public class ProfilesSelectViewModel : MyReactiveObject
 
     private async Task RefreshServersBiz()
     {
-        var lstModel = await GetProfileItemsEx(_subIndexId, _serverFilter);
+        var lstModel = await GetProfileItemsEx(_serverFilter);
 
         ProfileItems.Clear();
         ProfileItems.AddRange(lstModel);
         if (lstModel.Count > 0)
         {
-            var selected = lstModel.FirstOrDefault(t => t.IndexId == _config.IndexId);
-            if (selected != null)
+            var selected = lstModel.FirstOrDefault(t => t.IndexId == Config.IndexId);
+            if (selected is not null)
             {
                 SelectedProfile = selected;
             }
@@ -175,7 +170,7 @@ public class ProfilesSelectViewModel : MyReactiveObject
             }
         }
 
-        await _updateView?.Invoke(EViewAction.DispatcherRefreshServersBiz, null);
+        await UpdateView?.Invoke(EViewAction.DispatcherRefreshServersBiz, null);
     }
 
     public async Task RefreshSubscriptions()
@@ -188,7 +183,7 @@ public class ProfilesSelectViewModel : MyReactiveObject
         {
             SubItems.Add(item);
         }
-        if (_subIndexId != null && SubItems.FirstOrDefault(t => t.Id == _subIndexId) != null)
+        if (_subIndexId is not null && SubItems.FirstOrDefault(t => t.Id == _subIndexId) is not null)
         {
             SelectedSub = SubItems.FirstOrDefault(t => t.Id == _subIndexId);
         }
@@ -198,7 +193,7 @@ public class ProfilesSelectViewModel : MyReactiveObject
         }
     }
 
-    private async Task<List<ProfileItemModel>?> GetProfileItemsEx(string subid, string filter)
+    private async Task<List<ProfileItemModel>?> GetProfileItemsEx(string filter)
     {
         var lstModel = await AppManager.Instance.ProfileItems(_subIndexId, filter);
         lstModel = (from t in lstModel
@@ -214,11 +209,11 @@ public class ProfilesSelectViewModel : MyReactiveObject
                         StreamSecurity = t.StreamSecurity,
                         Subid = t.Subid,
                         SubRemarks = t.SubRemarks,
-                        IsActive = t.IndexId == _config.IndexId,
+                        IsActive = t.IndexId == Config.IndexId,
                     }).OrderBy(t => t.Sort).ToList();
 
         // Apply ConfigType filter (include or exclude)
-        if (FilterConfigTypes != null && FilterConfigTypes.Count > 0)
+        if (FilterConfigTypes is not null && FilterConfigTypes.Count > 0)
         {
             if (FilterExclude)
             {
@@ -251,7 +246,7 @@ public class ProfilesSelectViewModel : MyReactiveObject
 
     public async Task<List<ProfileItem>?> GetProfileItems()
     {
-        if (SelectedProfiles == null || SelectedProfiles.Count == 0)
+        if (SelectedProfiles is null || SelectedProfiles.Count == 0)
         {
             return null;
         }
@@ -263,7 +258,7 @@ public class ProfilesSelectViewModel : MyReactiveObject
                 continue;
             }
             var item = await AppManager.Instance.GetProfileItem(sp.IndexId);
-            if (item != null)
+            if (item is not null)
             {
                 lst.Add(item);
             }
@@ -284,13 +279,12 @@ public class ProfilesSelectViewModel : MyReactiveObject
         }
 
         var prop = typeof(ProfileItemModel).GetProperty(colName);
-        if (prop == null)
+        if (prop is null)
         {
             return;
         }
-
-        _dicHeaderSort.TryAdd(colName, true);
-        var asc = _dicHeaderSort[colName];
+;
+        var asc = _dicHeaderSort.GetValueOrDefault(colName, true);
 
         var comparer = Comparer<object?>.Create((a, b) =>
         {

v2rayN/ServiceLib/ViewModels/ProfilesViewModel.cs

@@ -6,7 +6,7 @@ public class ProfilesViewModel : MyReactiveObject
 
     private List<ProfileItem> _lstProfile;
     private string _serverFilter = string.Empty;
-    private Dictionary<string, bool> _dicHeaderSort = new();
+    private readonly Dictionary<string, bool> _dicHeaderSort = new();
     private SpeedtestService? _speedtestService;
 
     #endregion private prop
@@ -56,7 +56,7 @@ public class ProfilesViewModel : MyReactiveObject
 
     public ReactiveCommand<Unit, Unit> MoveUpCmd { get; }
     public ReactiveCommand<Unit, Unit> MoveDownCmd { get; }
-    public ReactiveCommand<Unit, Unit> MoveBottomCmd { get; } 
+    public ReactiveCommand<Unit, Unit> MoveBottomCmd { get; }
     public ReactiveCommand<SubItem, Unit> MoveToGroupCmd { get; }
 
     //servers ping
@@ -86,27 +86,27 @@ public class ProfilesViewModel : MyReactiveObject
 
     public ProfilesViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
         #region WhenAnyValue && ReactiveCommand
 
         var canEditRemove = this.WhenAnyValue(
            x => x.SelectedProfile,
-           selectedSource => selectedSource != null && !selectedSource.IndexId.IsNullOrEmpty());
+           selectedSource => selectedSource is not null && !selectedSource.IndexId.IsNullOrEmpty());
 
         this.WhenAnyValue(
             x => x.SelectedSub,
-            y => y != null && !y.Remarks.IsNullOrEmpty() && _config.SubIndexId != y.Id)
+            y => y is not null && !y.Remarks.IsNullOrEmpty() && Config.SubIndexId != y.Id)
                 .Subscribe(async c => await SubSelectedChangedAsync(c));
         this.WhenAnyValue(
              x => x.SelectedMoveToGroup,
-             y => y != null && !y.Remarks.IsNullOrEmpty())
+             y => y is not null && !y.Remarks.IsNullOrEmpty())
                  .Subscribe(async c => await MoveToGroup(c));
 
         this.WhenAnyValue(
           x => x.ServerFilter,
-          y => y != null && _serverFilter != y)
+          y => y is not null && _serverFilter != y)
               .Subscribe(async c => await ServerFilterChanged(c));
 
         //servers delete
@@ -303,7 +303,7 @@ public class ProfilesViewModel : MyReactiveObject
             return;
         }
         var item = ProfileItems.FirstOrDefault(it => it.IndexId == result.IndexId);
-        if (item == null)
+        if (item is null)
         {
             return;
         }
@@ -322,7 +322,7 @@ public class ProfilesViewModel : MyReactiveObject
 
     public async Task UpdateStatistics(ServerSpeedItem update)
     {
-        if (!_config.GuiItem.EnableStatistics
+        if (!Config.GuiItem.EnableStatistics
             || (update.ProxyUp + update.ProxyDown) <= 0
             || DateTime.Now.Second % 3 != 0)
         {
@@ -332,7 +332,7 @@ public class ProfilesViewModel : MyReactiveObject
         try
         {
             var item = ProfileItems.FirstOrDefault(it => it.IndexId == update.IndexId);
-            if (item != null)
+            if (item is not null)
             {
                 item.TodayDown = Utils.HumanFy(update.TodayDown);
                 item.TodayUp = Utils.HumanFy(update.TodayUp);
@@ -356,11 +356,11 @@ public class ProfilesViewModel : MyReactiveObject
         {
             return;
         }
-        _config.SubIndexId = SelectedSub?.Id;
+        Config.SubIndexId = SelectedSub?.Id;
 
         await RefreshServers();
 
-        await _updateView?.Invoke(EViewAction.ProfilesFocus, null);
+        await UpdateView?.Invoke(EViewAction.ProfilesFocus, null);
     }
 
     private async Task ServerFilterChanged(bool c)
@@ -385,15 +385,15 @@ public class ProfilesViewModel : MyReactiveObject
 
     private async Task RefreshServersBiz()
     {
-        var lstModel = await GetProfileItemsEx(_config.SubIndexId, _serverFilter);
+        var lstModel = await GetProfileItemsEx(Config.SubIndexId, _serverFilter);
         _lstProfile = JsonUtils.Deserialize<List<ProfileItem>>(JsonUtils.Serialize(lstModel)) ?? [];
 
         ProfileItems.Clear();
         ProfileItems.AddRange(lstModel);
         if (lstModel.Count > 0)
         {
-            var selected = lstModel.FirstOrDefault(t => t.IndexId == _config.IndexId);
-            if (selected != null)
+            var selected = lstModel.FirstOrDefault(t => t.IndexId == Config.IndexId);
+            if (selected is not null)
             {
                 SelectedProfile = selected;
             }
@@ -403,7 +403,7 @@ public class ProfilesViewModel : MyReactiveObject
             }
         }
 
-        await _updateView?.Invoke(EViewAction.DispatcherRefreshServersBiz, null);
+        await UpdateView?.Invoke(EViewAction.DispatcherRefreshServersBiz, null);
     }
 
     private async Task RefreshSubscriptions()
@@ -416,9 +416,9 @@ public class ProfilesViewModel : MyReactiveObject
         {
             SubItems.Add(item);
         }
-        if (_config.SubIndexId != null && SubItems.FirstOrDefault(t => t.Id == _config.SubIndexId) != null)
+        if (Config.SubIndexId is not null && SubItems.FirstOrDefault(t => t.Id == Config.SubIndexId) is not null)
         {
-            SelectedSub = SubItems.FirstOrDefault(t => t.Id == _config.SubIndexId);
+            SelectedSub = SubItems.FirstOrDefault(t => t.Id == Config.SubIndexId);
         }
         else
         {
@@ -428,11 +428,11 @@ public class ProfilesViewModel : MyReactiveObject
 
     private async Task<List<ProfileItemModel>?> GetProfileItemsEx(string subid, string filter)
     {
-        var lstModel = await AppManager.Instance.ProfileItems(_config.SubIndexId, filter);
+        var lstModel = await AppManager.Instance.ProfileItems(Config.SubIndexId, filter);
 
-        await ConfigHandler.SetDefaultServer(_config, lstModel);
+        await ConfigHandler.SetDefaultServer(Config, lstModel);
 
-        var lstServerStat = (_config.GuiItem.EnableStatistics ? StatisticsManager.Instance.ServerStat : null) ?? [];
+        var lstServerStat = (Config.GuiItem.EnableStatistics ? StatisticsManager.Instance.ServerStat : null) ?? [];
         var lstProfileExs = await ProfileExManager.Instance.GetProfileExs();
         lstModel = (from t in lstModel
                     join t2 in lstServerStat on t.IndexId equals t2.IndexId into t2b
@@ -451,16 +451,16 @@ public class ProfilesViewModel : MyReactiveObject
                         StreamSecurity = t.StreamSecurity,
                         Subid = t.Subid,
                         SubRemarks = t.SubRemarks,
-                        IsActive = t.IndexId == _config.IndexId,
+                        IsActive = t.IndexId == Config.IndexId,
                         Sort = t33?.Sort ?? 0,
                         Delay = t33?.Delay ?? 0,
                         Speed = t33?.Speed ?? 0,
                         DelayVal = t33?.Delay != 0 ? $"{t33?.Delay}" : string.Empty,
                         SpeedVal = t33?.Speed > 0 ? $"{t33?.Speed}" : t33?.Message ?? string.Empty,
-                        TodayDown = t22 == null ? "" : Utils.HumanFy(t22.TodayDown),
-                        TodayUp = t22 == null ? "" : Utils.HumanFy(t22.TodayUp),
-                        TotalDown = t22 == null ? "" : Utils.HumanFy(t22.TotalDown),
-                        TotalUp = t22 == null ? "" : Utils.HumanFy(t22.TotalUp)
+                        TodayDown = t22 is null ? "" : Utils.HumanFy(t22.TodayDown),
+                        TodayUp = t22 is null ? "" : Utils.HumanFy(t22.TodayUp),
+                        TotalDown = t22 is null ? "" : Utils.HumanFy(t22.TotalDown),
+                        TotalUp = t22 is null ? "" : Utils.HumanFy(t22.TotalUp)
                     }).OrderBy(t => t.Sort).ToList();
 
         return lstModel;
@@ -473,7 +473,7 @@ public class ProfilesViewModel : MyReactiveObject
     private async Task<List<ProfileItem>?> GetProfileItems(bool latest)
     {
         var lstSelected = new List<ProfileItem>();
-        if (SelectedProfiles == null || SelectedProfiles.Count <= 0)
+        if (SelectedProfiles is null || SelectedProfiles.Count <= 0)
         {
             return null;
         }
@@ -515,20 +515,20 @@ public class ProfilesViewModel : MyReactiveObject
         bool? ret = false;
         if (eConfigType == EConfigType.Custom)
         {
-            ret = await _updateView?.Invoke(EViewAction.AddServer2Window, item);
+            ret = await UpdateView?.Invoke(EViewAction.AddServer2Window, item);
         }
         else if (eConfigType.IsGroupType())
         {
-            ret = await _updateView?.Invoke(EViewAction.AddGroupServerWindow, item);
+            ret = await UpdateView?.Invoke(EViewAction.AddGroupServerWindow, item);
         }
         else
         {
-            ret = await _updateView?.Invoke(EViewAction.AddServerWindow, item);
+            ret = await UpdateView?.Invoke(EViewAction.AddServerWindow, item);
         }
         if (ret == true)
         {
             await RefreshServers();
-            if (item.IndexId == _config.IndexId)
+            if (item.IndexId == Config.IndexId)
             {
                 Reload();
             }
@@ -538,17 +538,17 @@ public class ProfilesViewModel : MyReactiveObject
     public async Task RemoveServerAsync()
     {
         var lstSelected = await GetProfileItems(true);
-        if (lstSelected == null)
+        if (lstSelected is null)
         {
             return;
         }
-        if (await _updateView?.Invoke(EViewAction.ShowYesNo, null) == false)
+        if (await UpdateView?.Invoke(EViewAction.ShowYesNo, null) == false)
         {
             return;
         }
-        var exists = lstSelected.Exists(t => t.IndexId == _config.IndexId);
+        var exists = lstSelected.Exists(t => t.IndexId == Config.IndexId);
 
-        await ConfigHandler.RemoveServers(_config, lstSelected);
+        await ConfigHandler.RemoveServers(Config, lstSelected);
         NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
         if (lstSelected.Count == ProfileItems.Count)
         {
@@ -563,12 +563,12 @@ public class ProfilesViewModel : MyReactiveObject
 
     private async Task RemoveDuplicateServer()
     {
-        if (await _updateView?.Invoke(EViewAction.ShowYesNo, null) == false)
+        if (await UpdateView?.Invoke(EViewAction.ShowYesNo, null) == false)
         {
             return;
         }
 
-        var tuple = await ConfigHandler.DedupServerList(_config, _config.SubIndexId);
+        var tuple = await ConfigHandler.DedupServerList(Config, Config.SubIndexId);
         if (tuple.Item1 > 0 || tuple.Item2 > 0)
         {
             await RefreshServers();
@@ -580,11 +580,11 @@ public class ProfilesViewModel : MyReactiveObject
     private async Task CopyServer()
     {
         var lstSelected = await GetProfileItems(false);
-        if (lstSelected == null)
+        if (lstSelected is null)
         {
             return;
         }
-        if (await ConfigHandler.CopyServer(_config, lstSelected) == 0)
+        if (await ConfigHandler.CopyServer(Config, lstSelected) == 0)
         {
             await RefreshServers();
             NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
@@ -606,7 +606,7 @@ public class ProfilesViewModel : MyReactiveObject
         {
             return;
         }
-        if (indexId == _config.IndexId)
+        if (indexId == Config.IndexId)
         {
             return;
         }
@@ -617,7 +617,7 @@ public class ProfilesViewModel : MyReactiveObject
             return;
         }
 
-        if (await ConfigHandler.SetDefaultServerIndex(_config, indexId) == 0)
+        if (await ConfigHandler.SetDefaultServerIndex(Config, indexId) == 0)
         {
             await RefreshServers();
             Reload();
@@ -638,24 +638,24 @@ public class ProfilesViewModel : MyReactiveObject
             return;
         }
 
-        await _updateView?.Invoke(EViewAction.ShareServer, url);
+        await UpdateView?.Invoke(EViewAction.ShareServer, url);
     }
 
     private async Task GenGroupMultipleServer(ECoreType coreType, EMultipleLoad multipleLoad)
     {
         var lstSelected = await GetProfileItems(true);
-        if (lstSelected == null)
+        if (lstSelected is null)
         {
             return;
         }
 
-        var ret = await ConfigHandler.AddGroupServer4Multiple(_config, lstSelected, coreType, multipleLoad, SelectedSub?.Id);
+        var ret = await ConfigHandler.AddGroupServer4Multiple(lstSelected, coreType, multipleLoad, SelectedSub?.Id);
         if (ret.Success != true)
         {
             NoticeManager.Instance.Enqueue(ResUI.OperationFailed);
             return;
         }
-        if (ret?.Data?.ToString() == _config.IndexId)
+        if (ret?.Data?.ToString() == Config.IndexId)
         {
             await RefreshServers();
             Reload();
@@ -675,7 +675,7 @@ public class ProfilesViewModel : MyReactiveObject
 
         _dicHeaderSort.TryAdd(colName, true);
         _dicHeaderSort.TryGetValue(colName, out var asc);
-        if (await ConfigHandler.SortServers(_config, _config.SubIndexId, colName, asc) != 0)
+        if (await ConfigHandler.SortServers(Config, Config.SubIndexId, colName, asc) != 0)
         {
             return;
         }
@@ -685,7 +685,7 @@ public class ProfilesViewModel : MyReactiveObject
 
     public async Task RemoveInvalidServerResult()
     {
-        var count = await ConfigHandler.RemoveInvalidServerResult(_config, _config.SubIndexId);
+        var count = await ConfigHandler.RemoveInvalidServerResult(Config, Config.SubIndexId);
         await RefreshServers();
         NoticeManager.Instance.Enqueue(string.Format(ResUI.RemoveInvalidServerResultTip, count));
     }
@@ -699,12 +699,12 @@ public class ProfilesViewModel : MyReactiveObject
         }
 
         var lstSelected = await GetProfileItems(true);
-        if (lstSelected == null)
+        if (lstSelected is null)
         {
             return;
         }
 
-        await ConfigHandler.MoveToGroup(_config, lstSelected, SelectedMoveToGroup.Id);
+        await ConfigHandler.MoveToGroup(Config, lstSelected, SelectedMoveToGroup.Id);
         NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
 
         await RefreshServers();
@@ -726,7 +726,7 @@ public class ProfilesViewModel : MyReactiveObject
         {
             return;
         }
-        if (await ConfigHandler.MoveServer(_config, _lstProfile, index, eMove) == 0)
+        if (await ConfigHandler.MoveServer(_lstProfile, index, eMove) == 0)
         {
             await RefreshServers();
         }
@@ -737,7 +737,7 @@ public class ProfilesViewModel : MyReactiveObject
         var targetIndex = ProfileItems.IndexOf(targetItem);
         if (startIndex >= 0 && targetIndex >= 0 && startIndex != targetIndex)
         {
-            if (await ConfigHandler.MoveServer(_config, _lstProfile, startIndex, EMove.Position, targetIndex) == 0)
+            if (await ConfigHandler.MoveServer(_lstProfile, startIndex, EMove.Position, targetIndex) == 0)
             {
                 await RefreshServers();
             }
@@ -757,12 +757,12 @@ public class ProfilesViewModel : MyReactiveObject
         }
 
         var lstSelected = await GetProfileItems(false);
-        if (lstSelected == null)
+        if (lstSelected is null)
         {
             return;
         }
 
-        _speedtestService ??= new SpeedtestService(_config, async (SpeedTestResult result) =>
+        _speedtestService ??= new SpeedtestService(Config, async (SpeedTestResult result) =>
         {
             RxApp.MainThreadScheduler.Schedule(result, (scheduler, result) =>
             {
@@ -808,13 +808,13 @@ public class ProfilesViewModel : MyReactiveObject
             }
             else
             {
-                await _updateView?.Invoke(EViewAction.SetClipboardData, result.Data);
+                await UpdateView?.Invoke(EViewAction.SetClipboardData, result.Data);
                 NoticeManager.Instance.SendMessage(ResUI.OperationSuccess);
             }
         }
         else
         {
-            await _updateView?.Invoke(EViewAction.SaveFileDialog, item);
+            await UpdateView?.Invoke(EViewAction.SaveFileDialog, item);
         }
     }
 
@@ -838,7 +838,7 @@ public class ProfilesViewModel : MyReactiveObject
     public async Task Export2ShareUrlAsync(bool blEncode)
     {
         var lstSelected = await GetProfileItems(true);
-        if (lstSelected == null)
+        if (lstSelected is null)
         {
             return;
         }
@@ -858,11 +858,11 @@ public class ProfilesViewModel : MyReactiveObject
         {
             if (blEncode)
             {
-                await _updateView?.Invoke(EViewAction.SetClipboardData, Utils.Base64Encode(sb.ToString()));
+                await UpdateView?.Invoke(EViewAction.SetClipboardData, Utils.Base64Encode(sb.ToString()));
             }
             else
             {
-                await _updateView?.Invoke(EViewAction.SetClipboardData, sb.ToString());
+                await UpdateView?.Invoke(EViewAction.SetClipboardData, sb.ToString());
             }
             NoticeManager.Instance.SendMessage(ResUI.BatchExportURLSuccessfully);
         }
@@ -881,13 +881,13 @@ public class ProfilesViewModel : MyReactiveObject
         }
         else
         {
-            item = await AppManager.Instance.GetSubItem(_config.SubIndexId);
+            item = await AppManager.Instance.GetSubItem(Config.SubIndexId);
             if (item is null)
             {
                 return;
             }
         }
-        if (await _updateView?.Invoke(EViewAction.SubEditWindow, item) == true)
+        if (await UpdateView?.Invoke(EViewAction.SubEditWindow, item) == true)
         {
             await RefreshSubscriptions();
             await SubSelectedChangedAsync(true);
@@ -896,17 +896,17 @@ public class ProfilesViewModel : MyReactiveObject
 
     private async Task DeleteSubAsync()
     {
-        var item = await AppManager.Instance.GetSubItem(_config.SubIndexId);
+        var item = await AppManager.Instance.GetSubItem(Config.SubIndexId);
         if (item is null)
         {
             return;
         }
 
-        if (await _updateView?.Invoke(EViewAction.ShowYesNo, null) == false)
+        if (await UpdateView?.Invoke(EViewAction.ShowYesNo, null) == false)
         {
             return;
         }
-        await ConfigHandler.DeleteSubItem(_config, item.Id);
+        await ConfigHandler.DeleteSubItem(Config, item.Id);
 
         await RefreshSubscriptions();
         await SubSelectedChangedAsync(true);

v2rayN/ServiceLib/ViewModels/RoutingRuleDetailsViewModel.cs

@@ -27,8 +27,8 @@ public class RoutingRuleDetailsViewModel : MyReactiveObject
 
     public RoutingRuleDetailsViewModel(RulesItem rulesItem, Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
         SaveCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -38,7 +38,7 @@ public class RoutingRuleDetailsViewModel : MyReactiveObject
         if (rulesItem.Id.IsNullOrEmpty())
         {
             rulesItem.Id = Utils.GetGuid(false);
-            rulesItem.OutboundTag = Global.ProxyTag;
+            rulesItem.OutboundTag = AppConfig.ProxyTag;
             rulesItem.Enabled = true;
             SelectedSource = rulesItem;
         }
@@ -73,7 +73,7 @@ public class RoutingRuleDetailsViewModel : MyReactiveObject
         }
         SelectedSource.Protocol = ProtocolItems?.ToList();
         SelectedSource.InboundTag = InboundTagItems?.ToList();
-        SelectedSource.RuleType = RuleType.IsNullOrEmpty() ? null : (ERuleType)Enum.Parse(typeof(ERuleType), RuleType);
+        SelectedSource.RuleType = RuleType.IsNullOrEmpty() ? null : Enum.Parse<ERuleType>(RuleType);
 
         var hasRule = SelectedSource.Domain?.Count > 0
           || SelectedSource.Ip?.Count > 0
@@ -88,6 +88,6 @@ public class RoutingRuleDetailsViewModel : MyReactiveObject
             return;
         }
         //NoticeHandler.Instance.Enqueue(ResUI.OperationSuccess);
-        await _updateView?.Invoke(EViewAction.CloseWindow, null);
+        await UpdateView?.Invoke(EViewAction.CloseWindow, null);
     }
 }

v2rayN/ServiceLib/ViewModels/RoutingRuleSettingViewModel.cs

@@ -29,12 +29,12 @@ public class RoutingRuleSettingViewModel : MyReactiveObject
 
     public RoutingRuleSettingViewModel(RoutingItem routingItem, Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
         var canEditRemove = this.WhenAnyValue(
             x => x.SelectedSource,
-            selectedSource => selectedSource != null && !selectedSource.OutboundTag.IsNullOrEmpty());
+            selectedSource => selectedSource is not null && !selectedSource.OutboundTag.IsNullOrEmpty());
 
         RuleAddCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -42,7 +42,7 @@ public class RoutingRuleSettingViewModel : MyReactiveObject
         });
         ImportRulesFromFileCmd = ReactiveCommand.CreateFromTask(async () =>
         {
-            await _updateView?.Invoke(EViewAction.ImportRulesFromFile, null);
+            await UpdateView?.Invoke(EViewAction.ImportRulesFromFile, null);
         });
         ImportRulesFromClipboardCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -129,7 +129,7 @@ public class RoutingRuleSettingViewModel : MyReactiveObject
                 return;
             }
         }
-        if (await _updateView?.Invoke(EViewAction.RoutingRuleDetailsWindow, item) == true)
+        if (await UpdateView?.Invoke(EViewAction.RoutingRuleDetailsWindow, item) == true)
         {
             if (blNew)
             {
@@ -146,14 +146,14 @@ public class RoutingRuleSettingViewModel : MyReactiveObject
             NoticeManager.Instance.Enqueue(ResUI.PleaseSelectRules);
             return;
         }
-        if (await _updateView?.Invoke(EViewAction.ShowYesNo, null) == false)
+        if (await UpdateView?.Invoke(EViewAction.ShowYesNo, null) == false)
         {
             return;
         }
         foreach (var it in SelectedSources ?? [SelectedSource])
         {
             var item = _rules.FirstOrDefault(t => t.Id == it?.Id);
-            if (item != null)
+            if (item is not null)
             {
                 _rules.Remove(item);
             }
@@ -189,7 +189,7 @@ public class RoutingRuleSettingViewModel : MyReactiveObject
                 DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
                 PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
             };
-            await _updateView?.Invoke(EViewAction.SetClipboardData, JsonUtils.Serialize(lst, options));
+            await UpdateView?.Invoke(EViewAction.SetClipboardData, JsonUtils.Serialize(lst, options));
         }
     }
 
@@ -202,7 +202,7 @@ public class RoutingRuleSettingViewModel : MyReactiveObject
         }
 
         var item = _rules.FirstOrDefault(t => t.Id == SelectedSource?.Id);
-        if (item == null)
+        if (item is null)
         {
             return;
         }
@@ -229,10 +229,10 @@ public class RoutingRuleSettingViewModel : MyReactiveObject
         item.RuleNum = _rules.Count;
         item.RuleSet = JsonUtils.Serialize(_rules, false);
 
-        if (await ConfigHandler.SaveRoutingItem(_config, item) == 0)
+        if (await ConfigHandler.SaveRoutingItem(Config, item) == 0)
         {
             NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
-            _updateView?.Invoke(EViewAction.CloseWindow, null);
+            UpdateView?.Invoke(EViewAction.CloseWindow, null);
         }
         else
         {
@@ -264,9 +264,9 @@ public class RoutingRuleSettingViewModel : MyReactiveObject
 
     public async Task ImportRulesFromClipboardAsync(string? clipboardData)
     {
-        if (clipboardData == null)
+        if (clipboardData is null)
         {
-            await _updateView?.Invoke(EViewAction.ImportRulesFromClipboard, null);
+            await UpdateView?.Invoke(EViewAction.ImportRulesFromClipboard, null);
             return;
         }
         var ret = await AddBatchRoutingRulesAsync(SelectedRouting, clipboardData);
@@ -299,7 +299,7 @@ public class RoutingRuleSettingViewModel : MyReactiveObject
     private async Task<int> AddBatchRoutingRulesAsync(RoutingItem routingItem, string? clipboardData)
     {
         var blReplace = false;
-        if (await _updateView?.Invoke(EViewAction.AddBatchRoutingRulesYesNo, null) == false)
+        if (await UpdateView?.Invoke(EViewAction.AddBatchRoutingRulesYesNo, null) == false)
         {
             blReplace = true;
         }
@@ -308,7 +308,7 @@ public class RoutingRuleSettingViewModel : MyReactiveObject
             return -1;
         }
         var lstRules = JsonUtils.Deserialize<List<RulesItem>>(clipboardData);
-        if (lstRules == null)
+        if (lstRules is null)
         {
             return -1;
         }

v2rayN/ServiceLib/ViewModels/RoutingSettingViewModel.cs

@@ -29,12 +29,12 @@ public class RoutingSettingViewModel : MyReactiveObject
 
     public RoutingSettingViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
         var canEditRemove = this.WhenAnyValue(
             x => x.SelectedSource,
-            selectedSource => selectedSource != null && !selectedSource.Remarks.IsNullOrEmpty());
+            selectedSource => selectedSource is not null && !selectedSource.Remarks.IsNullOrEmpty());
 
         RoutingAdvancedAddCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -65,10 +65,10 @@ public class RoutingSettingViewModel : MyReactiveObject
     {
         SelectedSource = new();
 
-        DomainStrategy = _config.RoutingBasicItem.DomainStrategy;
-        DomainStrategy4Singbox = _config.RoutingBasicItem.DomainStrategy4Singbox;
+        DomainStrategy = Config.RoutingBasicItem.DomainStrategy;
+        DomainStrategy4Singbox = Config.RoutingBasicItem.DomainStrategy4Singbox;
 
-        await ConfigHandler.InitBuiltinRouting(_config);
+        await ConfigHandler.InitBuiltinRouting(Config);
         await RefreshRoutingItems();
     }
 
@@ -98,13 +98,13 @@ public class RoutingSettingViewModel : MyReactiveObject
 
     private async Task SaveRoutingAsync()
     {
-        _config.RoutingBasicItem.DomainStrategy = DomainStrategy;
-        _config.RoutingBasicItem.DomainStrategy4Singbox = DomainStrategy4Singbox;
+        Config.RoutingBasicItem.DomainStrategy = DomainStrategy;
+        Config.RoutingBasicItem.DomainStrategy4Singbox = DomainStrategy4Singbox;
 
-        if (await ConfigHandler.SaveConfig(_config) == 0)
+        if (await ConfigHandler.SaveConfig(Config) == 0)
         {
             NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
-            _updateView?.Invoke(EViewAction.CloseWindow, null);
+            UpdateView?.Invoke(EViewAction.CloseWindow, null);
         }
         else
         {
@@ -129,7 +129,7 @@ public class RoutingSettingViewModel : MyReactiveObject
                 return;
             }
         }
-        if (await _updateView?.Invoke(EViewAction.RoutingRuleSettingWindow, item) == true)
+        if (await UpdateView?.Invoke(EViewAction.RoutingRuleSettingWindow, item) == true)
         {
             await RefreshRoutingItems();
             IsModified = true;
@@ -143,14 +143,14 @@ public class RoutingSettingViewModel : MyReactiveObject
             NoticeManager.Instance.Enqueue(ResUI.PleaseSelectRules);
             return;
         }
-        if (await _updateView?.Invoke(EViewAction.ShowYesNo, null) == false)
+        if (await UpdateView?.Invoke(EViewAction.ShowYesNo, null) == false)
         {
             return;
         }
         foreach (var it in SelectedSources ?? [SelectedSource])
         {
             var item = await AppManager.Instance.GetRoutingItem(it?.Id);
-            if (item != null)
+            if (item is not null)
             {
                 await ConfigHandler.RemoveRoutingItem(item);
             }
@@ -169,7 +169,7 @@ public class RoutingSettingViewModel : MyReactiveObject
             return;
         }
 
-        if (await ConfigHandler.SetDefaultRouting(_config, item) == 0)
+        if (await ConfigHandler.SetDefaultRouting(Config, item) == 0)
         {
             await RefreshRoutingItems();
             IsModified = true;
@@ -178,7 +178,7 @@ public class RoutingSettingViewModel : MyReactiveObject
 
     private async Task RoutingAdvancedImportRules()
     {
-        if (await ConfigHandler.InitRouting(_config, true) == 0)
+        if (await ConfigHandler.InitRouting(Config, true) == 0)
         {
             await RefreshRoutingItems();
             IsModified = true;

v2rayN/ServiceLib/ViewModels/StatusBarViewModel.cs

@@ -3,6 +3,9 @@ namespace ServiceLib.ViewModels;
 public class StatusBarViewModel : MyReactiveObject
 {
     private static readonly Lazy<StatusBarViewModel> _instance = new(() => new(null));
+
+    private static readonly CompositeFormat _speedDisplayFormat = CompositeFormat.Parse(ResUI.SpeedDisplayText);
+
     public static StatusBarViewModel Instance => _instance.Value;
 
     #region ObservableCollection
@@ -94,35 +97,35 @@ public class StatusBarViewModel : MyReactiveObject
 
     public StatusBarViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
+        Config = AppManager.Instance.Config;
         SelectedRouting = new();
         SelectedServer = new();
         RunningServerToolTipText = "-";
         BlSystemProxyPacVisible = Utils.IsWindows();
         BlIsNonWindows = Utils.IsNonWindows();
 
-        if (_config.TunModeItem.EnableTun && AllowEnableTun())
+        if (Config.TunModeItem.EnableTun && AllowEnableTun())
         {
             EnableTun = true;
         }
         else
         {
-            _config.TunModeItem.EnableTun = EnableTun = false;
+            Config.TunModeItem.EnableTun = EnableTun = false;
         }
 
         #region WhenAnyValue && ReactiveCommand
 
         this.WhenAnyValue(
                 x => x.SelectedRouting,
-                y => y != null && !y.Remarks.IsNullOrEmpty())
+                y => y is not null && !y.Remarks.IsNullOrEmpty())
             .Subscribe(async c => await RoutingSelectedChangedAsync(c));
 
         this.WhenAnyValue(
                 x => x.SelectedServer,
-                y => y != null && !y.Text.IsNullOrEmpty())
+                y => y is not null && !y.Text.IsNullOrEmpty())
             .Subscribe(ServerSelectedChanged);
 
-        SystemProxySelected = (int)_config.SystemProxyItem.SysProxyType;
+        SystemProxySelected = (int)Config.SystemProxyItem.SysProxyType;
         this.WhenAnyValue(
                 x => x.SystemProxySelected,
                 y => y >= 0)
@@ -131,7 +134,7 @@ public class StatusBarViewModel : MyReactiveObject
         this.WhenAnyValue(
                 x => x.EnableTun,
                 y => y == true)
-            .Subscribe(async c => await DoEnableTun(c));
+            .Subscribe(async c => await DoEnableTun());
 
         CopyProxyCmdToClipboardCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -193,7 +196,7 @@ public class StatusBarViewModel : MyReactiveObject
 
         #region AppEvents
 
-        if (updateView != null)
+        if (updateView is not null)
         {
             InitUpdateView(updateView);
         }
@@ -230,16 +233,16 @@ public class StatusBarViewModel : MyReactiveObject
 
     private async Task Init()
     {
-        await ConfigHandler.InitBuiltinRouting(_config);
+        await ConfigHandler.InitBuiltinRouting(Config);
         await RefreshRoutingsMenu();
         await InboundDisplayStatus();
-        await ChangeSystemProxyAsync(_config.SystemProxyItem.SysProxyType, true);
+        await ChangeSystemProxyAsync(Config.SystemProxyItem.SysProxyType, true);
     }
 
     public void InitUpdateView(Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _updateView = updateView;
-        if (_updateView != null)
+        UpdateView = updateView;
+        if (UpdateView is not null)
         {
             AppEvents.ProfilesRefreshRequested
               .AsObservable()
@@ -251,33 +254,33 @@ public class StatusBarViewModel : MyReactiveObject
     private async Task CopyProxyCmdToClipboard()
     {
         var cmd = Utils.IsWindows() ? "set" : "export";
-        var address = $"{Global.Loopback}:{AppManager.Instance.GetLocalPort(EInboundProtocol.socks)}";
+        var address = $"{AppConfig.Loopback}:{AppManager.Instance.GetLocalPort(EInboundProtocol.socks)}";
 
         var sb = new StringBuilder();
-        sb.AppendLine($"{cmd} http_proxy={Global.HttpProtocol}{address}");
-        sb.AppendLine($"{cmd} https_proxy={Global.HttpProtocol}{address}");
-        sb.AppendLine($"{cmd} all_proxy={Global.Socks5Protocol}{address}");
+        sb.AppendLine($"{cmd} http_proxy={AppConfig.HttpProtocol}{address}");
+        sb.AppendLine($"{cmd} https_proxy={AppConfig.HttpProtocol}{address}");
+        sb.AppendLine($"{cmd} all_proxy={AppConfig.Socks5Protocol}{address}");
         sb.AppendLine("");
-        sb.AppendLine($"{cmd} HTTP_PROXY={Global.HttpProtocol}{address}");
-        sb.AppendLine($"{cmd} HTTPS_PROXY={Global.HttpProtocol}{address}");
-        sb.AppendLine($"{cmd} ALL_PROXY={Global.Socks5Protocol}{address}");
+        sb.AppendLine($"{cmd} HTTP_PROXY={AppConfig.HttpProtocol}{address}");
+        sb.AppendLine($"{cmd} HTTPS_PROXY={AppConfig.HttpProtocol}{address}");
+        sb.AppendLine($"{cmd} ALL_PROXY={AppConfig.Socks5Protocol}{address}");
 
-        await _updateView?.Invoke(EViewAction.SetClipboardData, sb.ToString());
+        await UpdateView?.Invoke(EViewAction.SetClipboardData, sb.ToString());
     }
 
-    private async Task AddServerViaClipboard()
+    private static async Task AddServerViaClipboard()
     {
         AppEvents.AddServerViaClipboardRequested.Publish();
         await Task.Delay(1000);
     }
 
-    private async Task AddServerViaScan()
+    private static async Task AddServerViaScan()
     {
         AppEvents.AddServerViaScanRequested.Publish();
         await Task.Delay(1000);
     }
 
-    private async Task UpdateSubscriptionProcess(bool blProxy)
+    private static async Task UpdateSubscriptionProcess(bool blProxy)
     {
         AppEvents.SubscriptionsUpdateRequested.Publish(blProxy);
         await Task.Delay(1000);
@@ -288,8 +291,8 @@ public class StatusBarViewModel : MyReactiveObject
         await RefreshServersMenu();
 
         //display running server
-        var running = await ConfigHandler.GetDefaultServer(_config);
-        if (running != null)
+        var running = await ConfigHandler.GetDefaultServer(Config);
+        if (running is not null)
         {
             RunningServerDisplay =
                 RunningServerToolTipText = running.GetSummary();
@@ -303,10 +306,10 @@ public class StatusBarViewModel : MyReactiveObject
 
     private async Task RefreshServersMenu()
     {
-        var lstModel = await AppManager.Instance.ProfileItems(_config.SubIndexId, "");
+        var lstModel = await AppManager.Instance.ProfileItems(Config.SubIndexId, "");
 
         Servers.Clear();
-        if (lstModel.Count > _config.GuiItem.TrayMenuServersLimit)
+        if (lstModel.Count > Config.GuiItem.TrayMenuServersLimit)
         {
             BlServers = false;
             return;
@@ -320,7 +323,7 @@ public class StatusBarViewModel : MyReactiveObject
 
             var item = new ComboItem() { ID = it.IndexId, Text = name };
             Servers.Add(item);
-            if (_config.IndexId == it.IndexId)
+            if (Config.IndexId == it.IndexId)
             {
                 SelectedServer = item;
             }
@@ -333,7 +336,7 @@ public class StatusBarViewModel : MyReactiveObject
         {
             return;
         }
-        if (SelectedServer == null)
+        if (SelectedServer is null)
         {
             return;
         }
@@ -346,8 +349,8 @@ public class StatusBarViewModel : MyReactiveObject
 
     public async Task TestServerAvailability()
     {
-        var item = await ConfigHandler.GetDefaultServer(_config);
-        if (item == null)
+        var item = await ConfigHandler.GetDefaultServer(Config);
+        if (item is null)
         {
             return;
         }
@@ -380,21 +383,21 @@ public class StatusBarViewModel : MyReactiveObject
 
     private async Task SetListenerType(ESysProxyType type)
     {
-        if (_config.SystemProxyItem.SysProxyType == type)
+        if (Config.SystemProxyItem.SysProxyType == type)
         {
             return;
         }
-        _config.SystemProxyItem.SysProxyType = type;
+        Config.SystemProxyItem.SysProxyType = type;
         await ChangeSystemProxyAsync(type, true);
-        NoticeManager.Instance.SendMessageEx($"{ResUI.TipChangeSystemProxy} - {_config.SystemProxyItem.SysProxyType}");
+        NoticeManager.Instance.SendMessageEx($"{ResUI.TipChangeSystemProxy} - {Config.SystemProxyItem.SysProxyType}");
 
-        SystemProxySelected = (int)_config.SystemProxyItem.SysProxyType;
-        await ConfigHandler.SaveConfig(_config);
+        SystemProxySelected = (int)Config.SystemProxyItem.SysProxyType;
+        await ConfigHandler.SaveConfig(Config);
     }
 
     public async Task ChangeSystemProxyAsync(ESysProxyType type, bool blChange)
     {
-        await SysProxyHandler.UpdateSysProxy(_config, false);
+        await SysProxyHandler.UpdateSysProxy(Config, false);
 
         BlSystemProxyClear = type == ESysProxyType.ForcedClear;
         BlSystemProxySet = type == ESysProxyType.ForcedChange;
@@ -403,7 +406,7 @@ public class StatusBarViewModel : MyReactiveObject
 
         if (blChange)
         {
-            _updateView?.Invoke(EViewAction.DispatcherRefreshIcon, null);
+            UpdateView?.Invoke(EViewAction.DispatcherRefreshIcon, null);
         }
     }
 
@@ -430,7 +433,7 @@ public class StatusBarViewModel : MyReactiveObject
             return;
         }
 
-        if (SelectedRouting == null)
+        if (SelectedRouting is null)
         {
             return;
         }
@@ -441,11 +444,11 @@ public class StatusBarViewModel : MyReactiveObject
             return;
         }
 
-        if (await ConfigHandler.SetDefaultRouting(_config, item) == 0)
+        if (await ConfigHandler.SetDefaultRouting(Config, item) == 0)
         {
             NoticeManager.Instance.SendMessageEx(ResUI.TipChangeRouting);
             AppEvents.ReloadRequested.Publish();
-            _updateView?.Invoke(EViewAction.DispatcherRefreshIcon, null);
+            UpdateView?.Invoke(EViewAction.DispatcherRefreshIcon, null);
         }
     }
 
@@ -455,46 +458,46 @@ public class StatusBarViewModel : MyReactiveObject
         {
             return;
         }
-        if (_config.SystemProxyItem.SysProxyType == (ESysProxyType)SystemProxySelected)
+        if (Config.SystemProxyItem.SysProxyType == (ESysProxyType)SystemProxySelected)
         {
             return;
         }
         await SetListenerType((ESysProxyType)SystemProxySelected);
     }
 
-    private async Task DoEnableTun(bool c)
+    private async Task DoEnableTun()
     {
-        if (_config.TunModeItem.EnableTun == EnableTun)
+        if (Config.TunModeItem.EnableTun == EnableTun)
         {
             return;
         }
 
-        _config.TunModeItem.EnableTun = EnableTun;
+        Config.TunModeItem.EnableTun = EnableTun;
 
         if (EnableTun && AllowEnableTun() == false)
         {
             // When running as a non-administrator, reboot to administrator mode
             if (Utils.IsWindows())
             {
-                _config.TunModeItem.EnableTun = false;
+                Config.TunModeItem.EnableTun = false;
                 await AppManager.Instance.RebootAsAdmin();
                 return;
             }
             else
             {
-                bool? passwordResult = await _updateView?.Invoke(EViewAction.PasswordInput, null);
+                bool? passwordResult = await UpdateView?.Invoke(EViewAction.PasswordInput, null);
                 if (passwordResult == false)
                 {
-                    _config.TunModeItem.EnableTun = false;
+                    Config.TunModeItem.EnableTun = false;
                     return;
                 }
             }
         }
-        await ConfigHandler.SaveConfig(_config);
+        await ConfigHandler.SaveConfig(Config);
         AppEvents.ReloadRequested.Publish();
     }
 
-    private bool AllowEnableTun()
+    private static bool AllowEnableTun()
     {
         if (Utils.IsWindows())
         {
@@ -519,30 +522,30 @@ public class StatusBarViewModel : MyReactiveObject
     {
         StringBuilder sb = new();
         sb.Append($"[{EInboundProtocol.mixed}:{AppManager.Instance.GetLocalPort(EInboundProtocol.socks)}");
-        if (_config.Inbound.First().SecondLocalPortEnabled)
+        if (Config.Inbound.First().SecondLocalPortEnabled)
         {
             sb.Append($",{AppManager.Instance.GetLocalPort(EInboundProtocol.socks2)}");
         }
         sb.Append(']');
         InboundDisplay = $"{ResUI.LabLocal}:{sb}";
 
-        if (_config.Inbound.First().AllowLANConn)
+        if (Config.Inbound.First().AllowLANConn)
         {
-            var lan = _config.Inbound.First().NewPort4LAN
+            var lan = Config.Inbound.First().NewPort4LAN
                 ? $"[{EInboundProtocol.mixed}:{AppManager.Instance.GetLocalPort(EInboundProtocol.socks3)}]"
                 : $"[{EInboundProtocol.mixed}:{AppManager.Instance.GetLocalPort(EInboundProtocol.socks)}]";
             InboundLanDisplay = $"{ResUI.LabLAN}:{lan}";
         }
         else
         {
-            InboundLanDisplay = $"{ResUI.LabLAN}:{Global.None}";
+            InboundLanDisplay = $"{ResUI.LabLAN}:{AppConfig.None}";
         }
         await Task.CompletedTask;
     }
 
     public async Task UpdateStatistics(ServerSpeedItem update)
     {
-        if (!_config.GuiItem.DisplayRealTimeSpeed)
+        if (!Config.GuiItem.DisplayRealTimeSpeed)
         {
             return;
         }
@@ -551,13 +554,13 @@ public class StatusBarViewModel : MyReactiveObject
         {
             if (AppManager.Instance.IsRunningCore(ECoreType.sing_box))
             {
-                SpeedProxyDisplay = string.Format(ResUI.SpeedDisplayText, EInboundProtocol.mixed, Utils.HumanFy(update.ProxyUp), Utils.HumanFy(update.ProxyDown));
+                SpeedProxyDisplay = string.Format(CultureInfo.CurrentCulture, _speedDisplayFormat, EInboundProtocol.mixed, Utils.HumanFy(update.ProxyUp), Utils.HumanFy(update.ProxyDown));
                 SpeedDirectDisplay = string.Empty;
             }
             else
             {
-                SpeedProxyDisplay = string.Format(ResUI.SpeedDisplayText, Global.ProxyTag, Utils.HumanFy(update.ProxyUp), Utils.HumanFy(update.ProxyDown));
-                SpeedDirectDisplay = string.Format(ResUI.SpeedDisplayText, Global.DirectTag, Utils.HumanFy(update.DirectUp), Utils.HumanFy(update.DirectDown));
+                SpeedProxyDisplay = string.Format(CultureInfo.CurrentCulture, _speedDisplayFormat, AppConfig.ProxyTag, Utils.HumanFy(update.ProxyUp), Utils.HumanFy(update.ProxyDown));
+                SpeedDirectDisplay = string.Format(CultureInfo.CurrentCulture, _speedDisplayFormat, AppConfig.DirectTag, Utils.HumanFy(update.DirectUp), Utils.HumanFy(update.DirectDown));
             }
         }
         catch

v2rayN/ServiceLib/ViewModels/SubEditViewModel.cs

@@ -9,8 +9,8 @@ public class SubEditViewModel : MyReactiveObject
 
     public SubEditViewModel(SubItem subItem, Func<EViewAction, object?, Task<bool>>? updateView)
     {
-        _config = AppManager.Instance.Config;
-        _updateView = updateView;
+        Config = AppManager.Instance.Config;
+        UpdateView = updateView;
 
         SaveCmd = ReactiveCommand.CreateFromTask(async () =>
         {
@@ -33,23 +33,23 @@ public class SubEditViewModel : MyReactiveObject
         if (url.IsNotEmpty())
         {
             var uri = Utils.TryUri(url);
-            if (uri == null)
+            if (uri is null)
             {
                 NoticeManager.Instance.Enqueue(ResUI.InvalidUrlTip);
                 return;
             }
             //Do not allow http protocol
-            if (url.StartsWith(Global.HttpProtocol) && !Utils.IsPrivateNetwork(uri.IdnHost))
+            if (url.StartsWith(AppConfig.HttpProtocol) && !Utils.IsPrivateNetwork(uri.IdnHost))
             {
                 NoticeManager.Instance.Enqueue(ResUI.InsecureUrlProtocol);
                 //return;
             }
         }
 
-        if (await ConfigHandler.AddSubItem(_config, SelectedSource) == 0)
+        if (await ConfigHandler.AddSubItem(Config, SelectedSource) == 0)
         {
             NoticeManager.Instance.Enqueue(ResUI.OperationSuccess);
-            _updateView?.Invoke(EViewAction.CloseWindow, null);
+            UpdateView?.Invoke(EViewAction.CloseWindow, null);
         }
         else
         {