https增加短连接扫描配置

FastGithub.Scanner/ScanMiddlewares/HttpsScanMiddleware.cs

@@ -58,6 +58,7 @@ namespace FastGithub.Scanner.ScanMiddlewares
                 request.Method = new HttpMethod(rule.Method);
                 request.RequestUri = new Uri(new Uri($"https://{context.Address}"), rule.Path);
                 request.Headers.Host = context.Domain;
+                request.Headers.ConnectionClose = setting.ConnectionClose;
 
                 var timeout = this.options.CurrentValue.Timeout;
                 using var timeoutTokenSource = new CancellationTokenSource(timeout);

FastGithub.Scanner/ScanMiddlewares/HttpsScanOptions.cs

@@ -14,6 +14,11 @@ namespace FastGithub.Scanner.ScanMiddlewares
         /// </summary>
         public TimeSpan Timeout { get; set; } = TimeSpan.FromSeconds(5d);
 
+        /// <summary>
+        /// 是否使用短连接
+        /// </summary>
+        public bool ConnectionClose { get; set; } = false;
+
         /// <summary>
         /// 各域名扫描规则
         /// </summary>

FastGithub/appsettings.json

@@ -13,14 +13,18 @@
       },
       "HttpsScan": {
         "Timeout": "00:00:05", // https扫描超时时间
+        "ConnectionClose": false, // 是否使用短连接
         "Rules": {
           "github.githubassets.com": {
+            "Method": "HEAD",
             "Path": "/favicons/favicon.png"
           },
           "avatars.githubusercontent.com": {
+            "Method": "HEAD",
             "Path": "/u/8308014?s=40&v=4"
           },
           "raw.githubusercontent.com": {
+            "Method": "HEAD",
             "Path": "/xljiulang/FastGithub/master/README.md"
           }
         }