添加对HttpServer类的错误处理委托

防止插件无法启动监听时对ACT的连带刑
Natsukage · Oct 28, 2020 · 1acc355 · 1acc355
1 parent 412cc76
commit 1acc355
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Showing 2 changed files with 33 additions and 4 deletions.
diff --git a/PostNamazu/Common/HTTPServer.cs b/PostNamazu/Common/HTTPServer.cs
@@ -10,15 +10,18 @@ namespace PostNamazu.Models
 {
     public delegate void ReceivedHttpCommandRequestEventHandler(string command);
     public delegate void ReceivedHttpWayMarksRequestEventHandler(string waymarkJson);
+    public delegate void OnExceptionEventHandler(Exception ex);
 
     internal class HttpServer
     {
         private Thread _serverThread;
         private HttpListener _listener;
+        SynchronizationContext ui = SynchronizationContext.Current;
         public int Port { get; private set; }
 
         public event ReceivedHttpCommandRequestEventHandler ReceivedCommandRequest;
         public event ReceivedHttpWayMarksRequestEventHandler ReceivedWayMarksRequest;
+        public event OnExceptionEventHandler OnException;
 
         /// <summary>
         ///     在指定端口启动监听
@@ -53,9 +56,18 @@ public void Stop()
 
         private void Listen()
         {
-            _listener = new HttpListener();
-            _listener.Prefixes.Add("http://*:" + Port + "/");
-            _listener.Start();
+            try
+            {
+                _listener = new HttpListener();
+                _listener.Prefixes.Add("http://*:" + Port + "/");
+                _listener.Start();
+            }
+            catch (Exception ex)
+            {
+                OnException?.Invoke(ex);
+                return;
+            }
+
 
             ThreadPool.QueueUserWorkItem(o =>
             {

diff --git a/PostNamazu/PostNamazu.cs b/PostNamazu/PostNamazu.cs
@@ -76,14 +76,15 @@ private void ServerStart(object sender = null, EventArgs e = null)
                 _httpServer = new HttpServer((int) PluginUI.TextPort.Value);
                 _httpServer.ReceivedCommandRequest += DoTextCommand;
                 _httpServer.ReceivedWayMarksRequest += DoWaymarks;
+                _httpServer.OnException += OnException;
 
                 PluginUI.ButtonStart.Enabled = false;
                 PluginUI.ButtonStop.Enabled = true;
                 PluginUI.Log($"在{_httpServer.Port}端口启动监听");
             }
             catch (Exception ex)
             {
-                PluginUI.Log($"无法在{_httpServer.Port}端口启动监听\n{ex.Message}");
+                OnException(ex);
             }
         }
 
@@ -92,11 +93,27 @@ private void ServerStop(object sender = null, EventArgs e = null)
             _httpServer.Stop();
             _httpServer.ReceivedCommandRequest -= DoTextCommand;
             _httpServer.ReceivedWayMarksRequest -= DoWaymarks;
+            _httpServer.OnException -= OnException;
 
             PluginUI.ButtonStart.Enabled = true;
             PluginUI.ButtonStop.Enabled = false;
             PluginUI.Log("已停止监听");
         }
+        /// <summary>
+        /// 委托给HttpServer类的异常处理
+        /// </summary>
+        /// <param name="ex"></param>
+        private void OnException(Exception ex)
+        {
+            string errorMessage = $"无法在{_httpServer.Port}端口启动监听\n{ex.Message}";
+
+            PluginUI.ButtonStart.Enabled = true;
+            PluginUI.ButtonStop.Enabled = false;
+
+            PluginUI.Log(errorMessage);
+            MessageBox.Show(errorMessage);
+        }
+
 
 
         /// <summary>