From 782e3acae299c3675527746365c83eea81a96965 Mon Sep 17 00:00:00 2001
From: Pigeon0v0 <60414767+Pigeon0v0@users.noreply.github.com>
Date: Sat, 6 Dec 2025 22:33:46 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E5=AF=B9=E9=83=A8=E5=88=86=E5=8A=9F?=
 =?UTF-8?q?=E8=83=BD=E8=BF=9B=E8=A1=8C=E5=8C=BA=E5=9F=9F=E9=99=90=E5=88=B6?=
 =?UTF-8?q?=E4=BF=AE=E6=AD=A3?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 App/Config.cs        |  1 +
 Net/NetworkHelper.cs | 40 ++++++++++++++++++++++++++++++++++++++++
 Utils/RegionUtils.cs | 15 +++++++++++++++
 3 files changed, 56 insertions(+)
 create mode 100644 Utils/RegionUtils.cs

diff --git a/App/Config.cs b/App/Config.cs
index 3c0ec99c..85d4252a 100644
--- a/App/Config.cs
+++ b/App/Config.cs
@@ -292,6 +292,7 @@ partial class NetworkConfigGroup
             [ConfigItem<int>("SystemDebugAnim", 9)] public partial int AnimationSpeed { get; set; }
             [ConfigItem<bool>("SystemDebugDelay", false)] public partial bool AddRandomDelay { get; set; }
             [ConfigItem<bool>("SystemDebugSkipCopy", false)] public partial bool DontCopy { get; set; }
+            [ConfigItem<bool>("SystemDebugAllowRestrictedFeature", false)] public partial bool AllowRestrictedFeature { get; set; }
         }
     }
 
diff --git a/Net/NetworkHelper.cs b/Net/NetworkHelper.cs
index 65a31411..f58040b8 100644
--- a/Net/NetworkHelper.cs
+++ b/Net/NetworkHelper.cs
@@ -1,5 +1,9 @@
+using System;
 using System.Net;
+using System.Net.Http;
 using System.Net.Sockets;
+using System.Threading.Tasks;
+using PCL.Core.Logging;
 
 namespace PCL.Core.Net;
 
@@ -13,4 +17,40 @@ public static int NewTcpPort()
         listener.Stop();
         return port;
     }
+    
+    /// <summary>
+    /// 测试 HTTP 连通性
+    /// </summary>
+    /// <param name="url">目标 Url，留空则为 baidu.com</param>
+    /// <param name="timeout">超时时间 (默认 3000 ms)</param>
+    /// <returns>若 HTTP 连接成功，则返回 true；反之，则返回 false</returns>
+    public static async Task<bool> TestHttpConnectionAsync(string url = "http://www.baidu.com", int timeout = 3000)
+    {
+        try
+        {
+            using (var httpClient = new HttpClient())
+            {
+                httpClient.Timeout = TimeSpan.FromMilliseconds(timeout);
+                
+                var request = new HttpRequestMessage(HttpMethod.Head, url);
+                var response = await httpClient.SendAsync(request);
+                
+                return response.IsSuccessStatusCode;
+            }
+        }
+        catch (HttpRequestException ex)
+        {
+            LogWrapper.Error($"HTTP 请求异常: {ex.Message}");
+            return false;
+        }
+        catch (TaskCanceledException)
+        {
+            LogWrapper.Error("请求超时");
+            return false;
+        }
+        catch
+        {
+            return false;
+        }
+    }
 }
diff --git a/Utils/RegionUtils.cs b/Utils/RegionUtils.cs
new file mode 100644
index 00000000..231b1f7e
--- /dev/null
+++ b/Utils/RegionUtils.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Globalization;
+using PCL.Core.App;
+
+namespace PCL.Core.Utils;
+
+public static class RegionUtils
+{
+    /// <summary>
+    /// 获取区域限制状态
+    /// </summary>
+    public static bool IsRestrictedFeatAllowed =>
+        Config.System.Debug.AllowRestrictedFeature || (TimeZoneInfo.Local.Id == "China Standard Time" &&
+                                                       (CultureInfo.CurrentCulture.Name == "zh-CN" || CultureInfo.CurrentUICulture.Name == "zh-CN"));
+}
\ No newline at end of file