简化域名判断

FastGithub.HttpServer/HttpProxyMiddleware.cs

@@ -105,10 +105,10 @@ namespace FastGithub.HttpServer
             }
             else
             {
-                await this.httpReverseProxy.InvokeAsync(context, async ctx =>
+                await this.httpReverseProxy.InvokeAsync(context, async next =>
                 {
-                    var destinationPrefix = $"{ctx.Request.Scheme}://{ctx.Request.Host}";
-                    await this.httpForwarder.SendAsync(ctx, destinationPrefix, this.defaultHttpClient);
+                    var destinationPrefix = $"{context.Request.Scheme}://{context.Request.Host}";
+                    await this.httpForwarder.SendAsync(context, destinationPrefix, this.defaultHttpClient);
                 });
             }
         }

FastGithub.HttpServer/HttpReverseProxyMiddleware.cs

@@ -14,11 +14,6 @@ namespace FastGithub.HttpServer
     /// </summary>
     sealed class HttpReverseProxyMiddleware
     {
-        private const string LOOPBACK = "127.0.0.1";
-        private const string LOCALHOST = "localhost";
-        private const int HTTP_PORT = 80;
-        private const int HTTPS_PORT = 443;
-
         private static readonly DomainConfig defaultDomainConfig = new() { TlsSni = true };
 
         private readonly IHttpForwarder httpForwarder;
@@ -26,7 +21,6 @@ namespace FastGithub.HttpServer
         private readonly FastGithubConfig fastGithubConfig;
         private readonly ILogger<HttpReverseProxyMiddleware> logger;
 
-
         public HttpReverseProxyMiddleware(
             IHttpForwarder httpForwarder,
             IHttpClientFactory httpClientFactory,
@@ -84,20 +78,14 @@ namespace FastGithub.HttpServer
                 return true;
             }
 
-            // http(s)://127.0.0.1
-            // http(s)://localhost
-            if (host.Host == LOOPBACK || host.Host == LOCALHOST)
+            // 未配置的域名，但仍然被解析到本机ip的域名
+            if (host.Host.Contains('.') == true)
             {
-                if (host.Port == null || host.Port == HTTPS_PORT || host.Port == HTTP_PORT)
-                {
-                    return false;
-                }
+                domainConfig = defaultDomainConfig;
+                return true;
             }
 
-            // 未配置的域名，但dns污染解析为127.0.0.1的域名
-            this.logger.LogWarning($"检测到{host.Host}可能遭遇了dns污染");
-            domainConfig = defaultDomainConfig;
-            return true;
+            return false;
         }
 
         /// <summary>