解决获取本机ip慢的问题

FastGithub.Configuration/DnsConfig.cs

@@ -1,7 +1,6 @@
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Net;
-using System.Net.NetworkInformation;
 
 namespace FastGithub.Configuration
 {
@@ -33,7 +32,7 @@ namespace FastGithub.Configuration
                 throw new FastGithubException($"无效的ip：{this.IPAddress}");
             }
 
-            if (this.Port == 53 && IsLocalMachineIPAddress(address))
+            if (this.Port == 53 && IsLocalIPAddress(address))
             {
                 throw new FastGithubException($"配置的dns值不能指向{nameof(FastGithub)}自身：{this.IPAddress}:{this.Port}");
             }
@@ -51,12 +50,18 @@ namespace FastGithub.Configuration
         /// </summary>
         /// <param name="address"></param>
         /// <returns></returns>
-        private static bool IsLocalMachineIPAddress(IPAddress address)
+        private static bool IsLocalIPAddress(IPAddress address)
         {
-            return IPGlobalProperties
+            if (address.Equals(System.Net.IPAddress.Loopback))
-                .GetIPGlobalProperties()
+            {
-                .GetUnicastAddresses()
+                return true;
-                .Any(item => item.Address.Equals(address));
+            }
+            if (address.Equals(System.Net.IPAddress.IPv6Loopback))
+            {
+                return true;
+            }
+            var addresses = Dns.GetHostAddresses(Dns.GetHostName());
+            return addresses.Contains(address);
         }
     }
 }

FastGithub.Dns/HostsValidator.cs

@@ -1,11 +1,11 @@
 using FastGithub.Configuration;
 using Microsoft.Extensions.Logging;
 using System;
+using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.IO;
-using System.Linq;
 using System.Net;
-using System.Net.NetworkInformation;
+using System.Net.Sockets;
 using System.Threading.Tasks;
 
 namespace FastGithub.Dns
@@ -48,12 +48,7 @@ namespace FastGithub.Dns
                 return;
             }
 
-            var localAddresses = IPGlobalProperties
+            var localAddresses = await GetLocalIPv4AddressesAsync();
-                .GetIPGlobalProperties()
-                .GetUnicastAddresses()
-                .Select(item => item.Address)
-                .ToArray();
-
             var lines = await File.ReadAllLinesAsync(hostsPath);
             foreach (var line in lines)
             {
@@ -72,6 +67,29 @@ namespace FastGithub.Dns
             }
         }
 
+        /// <summary>
+        /// 获取本机所有IPv4
+        /// </summary>
+        /// <returns></returns>
+        private static async Task<HashSet<IPAddress>> GetLocalIPv4AddressesAsync()
+        {
+            var hashSet = new HashSet<IPAddress>
+            {
+                IPAddress.Loopback
+            };
+
+            var hostName = System.Net.Dns.GetHostName();
+            var addresses = await System.Net.Dns.GetHostAddressesAsync(hostName);
+            foreach (var address in addresses)
+            {
+                if (address.AddressFamily == AddressFamily.InterNetwork)
+                {
+                    hashSet.Add(address);
+                }
+            }
+            return hashSet;
+        }
+
 
         /// <summary>
         /// hosts文件记录

FastGithub.ReverseProxy/KestrelServerOptionsExtensions.cs

@@ -187,17 +187,14 @@ namespace FastGithub
                 yield break;
             }
 
-            var globalPropreties = IPGlobalProperties.GetIPGlobalProperties();
+            var hostName = Dns.GetHostName();
-            if (string.IsNullOrEmpty(globalPropreties.HostName) == false)
+            yield return hostName;
-            {
-                yield return globalPropreties.HostName;
-            }
 
-            foreach (var item in globalPropreties.GetUnicastAddresses())
+            foreach (var address in Dns.GetHostAddresses(hostName))
             {
-                if (item.Address.AddressFamily == AddressFamily.InterNetwork)
+                if (address.AddressFamily == AddressFamily.InterNetwork)
                 {
-                    yield return item.Address.ToString();
+                    yield return address.ToString();
                 }
             }
         }