From 43a1bc761dfbd0823c13bad812aa30ab463c1d70 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=AE=97=E7=A5=9E?= <lishewen@msn.com>
Date: Tue, 23 Nov 2021 08:26:53 +0800
Subject: [PATCH] =?UTF-8?q?Options=20=E8=BF=94=E5=9B=9E204?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 .../Extensions/JT808HttpContextExtensions.cs              | 8 ++++++++
 src/JT808.Gateway/JT808HttpServer.cs                      | 7 +++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/src/JT808.Gateway/Extensions/JT808HttpContextExtensions.cs b/src/JT808.Gateway/Extensions/JT808HttpContextExtensions.cs
index 46ba45d..a4c85fc 100644
--- a/src/JT808.Gateway/Extensions/JT808HttpContextExtensions.cs
+++ b/src/JT808.Gateway/Extensions/JT808HttpContextExtensions.cs
@@ -11,6 +11,14 @@ namespace JT808.Gateway.Extensions
     {
         private const string jsonType = "application/json";
 
+        public static void Http204(this HttpListenerContext context)
+        {
+            context.Response.StatusCode = (int)HttpStatusCode.NoContent;
+            context.Response.KeepAlive = false;
+            context.Response.OutputStream.Close();
+            context.Response.Close();
+        }
+
         public static async ValueTask Http401(this HttpListenerContext context)
         {
             byte[] b = Encoding.UTF8.GetBytes("auth error");
diff --git a/src/JT808.Gateway/JT808HttpServer.cs b/src/JT808.Gateway/JT808HttpServer.cs
index b85cb52..f09be38 100644
--- a/src/JT808.Gateway/JT808HttpServer.cs
+++ b/src/JT808.Gateway/JT808HttpServer.cs
@@ -76,15 +76,18 @@ namespace JT808.Gateway
                             context.Http404();
                             continue;
                         }
+
                         // 增加CORS
                         // https://stackoverflow.com/questions/25437405/cors-access-for-httplistener
+                        context.Response.AppendHeader("Access-Control-Allow-Origin", "*");
                         if (context.Request.HttpMethod == HttpMethod.Options.Method)
                         {
-                            context.Response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Accept, X-Requested-With");
+                            context.Response.AddHeader("Access-Control-Allow-Headers", "*");
                             context.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST");
                             context.Response.AddHeader("Access-Control-Max-Age", "1728000");
+                            context.Http204();
                         }
-                        context.Response.AppendHeader("Access-Control-Allow-Origin", "*");
+                   
                         if (authorization.Authorization(context, out var principal))
                         {
                             await ProcessRequestAsync(context, principal);