From 176d1020004d55d9b6859a46b7f1721bd7e0ab4c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E5=9B=BD=E5=88=9A?= <65169947@163.com>
Date: Thu, 26 Nov 2020 16:17:00 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E5=AF=B9=E5=A4=9A=E7=BD=91?=
 =?UTF-8?q?=E5=8D=A1=E7=9A=84=E6=94=AF=E6=8C=81?=
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---
 .../Configurations/SurgingServerOptions.cs            |  2 ++
 .../Surging.Core.CPlatform/Utilities/NetUtils.cs      | 11 ++++++++++-
 .../Surging.Services.Server/surgingSettings.json      |  1 +
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/Surging.Core/Surging.Core.CPlatform/Configurations/SurgingServerOptions.cs b/src/Surging.Core/Surging.Core.CPlatform/Configurations/SurgingServerOptions.cs
index 1e3390d50..b26326445 100644
--- a/src/Surging.Core/Surging.Core.CPlatform/Configurations/SurgingServerOptions.cs
+++ b/src/Surging.Core/Surging.Core.CPlatform/Configurations/SurgingServerOptions.cs
@@ -55,5 +55,7 @@ public  partial class SurgingServerOptions: ServiceCommand
         public string NotRelatedAssemblyFiles { get; set; }
 
         public string RelatedAssemblyFiles { get; set; } = "";
+
+        public string PreferredNetworks { get; set; } = "";
     }
 }
diff --git a/src/Surging.Core/Surging.Core.CPlatform/Utilities/NetUtils.cs b/src/Surging.Core/Surging.Core.CPlatform/Utilities/NetUtils.cs
index 1195c7025..9f4b578c4 100644
--- a/src/Surging.Core/Surging.Core.CPlatform/Utilities/NetUtils.cs
+++ b/src/Surging.Core/Surging.Core.CPlatform/Utilities/NetUtils.cs
@@ -61,7 +61,7 @@ public static string GetAnyHostAddress()
                     UnicastIPAddressInformationCollection ipCollection = ipxx.UnicastAddresses;
                     foreach (UnicastIPAddressInformation ipadd in ipCollection)
                     {
-                        if (ipadd.Address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
+                        if (ipadd.Address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork&&IsPreferredAddress(ipadd.Address.ToString()))
                         {
                             result = ipadd.Address.ToString();
                         }
@@ -71,6 +71,15 @@ public static string GetAnyHostAddress()
             return result;
         }
 
+        private static bool IsPreferredAddress(string hostAddress)
+        {
+            if (string.IsNullOrEmpty(AppConfig.ServerOptions.PreferredNetworks))
+            {
+                return true;
+            }
+            return hostAddress.StartsWith(AppConfig.ServerOptions.PreferredNetworks);
+        }
+
         public static string GetHostAddress(string hostAddress)
         {
             var result = hostAddress;
diff --git a/src/Surging.Services/Surging.Services.Server/surgingSettings.json b/src/Surging.Services/Surging.Services.Server/surgingSettings.json
index 58f6eba16..258003bc4 100644
--- a/src/Surging.Services/Surging.Services.Server/surgingSettings.json
+++ b/src/Surging.Services/Surging.Services.Server/surgingSettings.json
@@ -3,6 +3,7 @@
     "Ip": "${Surging_Server_IP}|127.0.0.1",
     "WatchInterval": 30,
     "Port": "${Surging_Server_Port}|98",
+    "PreferredNetworks": "",
     "MappingIp": "${Mapping_ip}",
     "MappingPort": "${Mapping_Port}",
     "Token": "true",