增加隧道不存在时的提示页

FastTunnel.Core/Core/SuiDaoServer.cs

@@ -14,6 +14,9 @@ using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
 using FastTunnel.Core.Handlers;
 using FastTunnel.Core.Handlers.Server;
+using Microsoft.AspNetCore.Http;
+using FastTunnel.Core.Helper;
+using System.IO;
 
 namespace FastTunnel.Core.Core
 {
@@ -120,14 +123,15 @@ namespace FastTunnel.Core.Core
                 {
                     _logger.LogError($"客户端不存在:'{domain}'");
                     _logger.LogDebug(words);
-                    return;
+                    HandlerClientNotOnLine(client, domain, buffer); return;
+
                 }
 
                 if (!web.Socket.Connected)
                 {
                     _logger.LogError($"客户端已下线:'{domain}'");
                     WebList.Remove(domain);
-                    return;
+                    HandlerClientNotOnLine(client, domain, buffer); return;
                 }
 
                 var msgid = Guid.NewGuid().ToString();
@@ -149,6 +153,36 @@ namespace FastTunnel.Core.Core
             }
         }
 
+        private void HandlerClientNotOnLine(Socket clientsocket, string domain, byte[] buffer)
+        {
+            string statusLine = "HTTP/1.1 200 OK\r\n";
+            string responseHeader = "Content-Type: text/html\r\n";
+            byte[] responseBody;
+
+            var file = Path.Combine(AppContext.BaseDirectory, "Htmls", "TunnelNotFound.html");
+            if (File.Exists(file))
+            {
+                responseBody = FileHelper.GetBytesFromFile(file);
+            }
+            else
+            {
+                responseBody = Encoding.UTF8.GetBytes(@"
+                <p>看到本页面表示当前隧道未登录，如果您是当前隧道地址的拥有者，请检查以下原因：</p>
+              <ol>
+                <li>是否创建了当前子域名的隧道</li>
+                <li>是否在后台设置中禁用了当前隧道</li>
+                <li>是否启动了客户端并登录成功</li>
+              </ol>");
+            }
+
+
+            clientsocket.Send(Encoding.UTF8.GetBytes(statusLine));
+            clientsocket.Send(Encoding.UTF8.GetBytes(responseHeader));
+            clientsocket.Send(Encoding.UTF8.GetBytes("\r\n"));
+            clientsocket.Send(responseBody);
+            clientsocket.Close();
+        }
+
         byte[] buffer = new byte[1024 * 1024];
 
         public void ReceiveClient(Socket client, object _)
@@ -174,9 +208,9 @@ namespace FastTunnel.Core.Core
                     return;
                 }
             }
-            catch (Exception)
+            catch (Exception ex)
             {
-                _logger.LogError($"client 退出登录");
+                _logger.LogError($"接收客户端异常 -> 退出登录 {ex.Message}");
                 if (client.Connected)
                 {
                     client.Close();

FastTunnel.Core/FastTunnel.Core.csproj

@@ -14,6 +14,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Http.Abstractions" Version="2.2.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="3.1.0" />
     <PackageReference Include="Microsoft.Extensions.Configuration.Abstractions" Version="3.1.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.0" />
@@ -26,4 +27,10 @@
     <PackageReference Include="NLog.Extensions.Logging" Version="1.6.1" />
   </ItemGroup>
 
+  <ItemGroup>
+    <None Update="Htmls\TunnelNotFound.html">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
 </Project>

FastTunnel.Core/Helper/FileHelper.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+
+namespace FastTunnel.Core.Helper
+{
+    public static class FileHelper
+    {
+        public static byte[] GetBytesFromFile(string fileName)
+        {
+            if (!File.Exists(fileName))
+            {
+                return null;
+            }
+
+            FileInfo fi = new FileInfo(fileName);
+            byte[] buff = new byte[fi.Length];
+
+            FileStream fs = fi.OpenRead();
+            fs.Read(buff, 0, Convert.ToInt32(fs.Length));
+            fs.Close();
+
+            return buff;
+        }
+    }
+}

FastTunnel.Core/Htmls/TunnelNotFound.html

@@ -0,0 +1,126 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <title>FastTunnel</title>
+  <link href="https://cdn.bootcss.com/twitter-bootstrap/4.4.1/css/bootstrap.min.css" rel="stylesheet">
+  <style>
+    /* Please see documentation at https://docs.microsoft.com/aspnet/core/client-side/bundling-and-minification
+for details on configuring this project to bundle and minify static web assets. */
+
+    a.navbar-brand {
+      white-space: normal;
+      text-align: center;
+      word-break: break-all;
+    }
+
+    /* Provide sufficient contrast against white background */
+    a {
+      color: #0366d6;
+    }
+
+    .btn-primary {
+      color: #fff;
+      background-color: #1b6ec2;
+      border-color: #1861ac;
+    }
+
+    .nav-pills .nav-link.active,
+    .nav-pills .show>.nav-link {
+      color: #fff;
+      background-color: #1b6ec2;
+      border-color: #1861ac;
+    }
+
+    /* Sticky footer styles
+-------------------------------------------------- */
+    html {
+      font-size: 14px;
+    }
+
+    @media (min-width: 768px) {
+      html {
+        font-size: 16px;
+      }
+    }
+
+    .border-top {
+      border-top: 1px solid #e5e5e5;
+    }
+
+    .border-bottom {
+      border-bottom: 1px solid #e5e5e5;
+    }
+
+    .box-shadow {
+      box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .05);
+    }
+
+    button.accept-policy {
+      font-size: 1rem;
+      line-height: inherit;
+    }
+
+    /* Sticky footer styles
+-------------------------------------------------- */
+    html {
+      position: relative;
+      min-height: 100%;
+    }
+
+    body {
+      /* Margin bottom by footer height */
+      margin-bottom: 60px;
+    }
+
+    .footer {
+      position: absolute;
+      bottom: 0;
+      width: 100%;
+      white-space: nowrap;
+      line-height: 60px;
+      /* Vertically center the text there */
+    }
+  </style>
+</head>
+
+<body>
+  <header>
+    <nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
+      <div class="container">
+        <a class="navbar-brand" src="https://suidao.io">FastTunnel</a>
+        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target=".navbar-collapse"
+          aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
+          <span class="navbar-toggler-icon"></span>
+        </button>
+      </div>
+    </nav>
+  </header>
+  <div class="container">
+    <main role="main" class="pb-3">
+      <div class="text-center">
+        <h1 class="display-4">找不到隧道</h1>
+        <p>了解有关 <a target="_blank" href="https://github.com/SpringHgui/FastTunnel">FastTunel</a>的信息.</p>
+      </div>
+
+      <blockquote style="padding-top: 4em;">
+        <p class="lead">看到本页面表示当前隧道未登录，如果您是当前隧道地址的拥有者，请检查以下原因：</p>
+      </blockquote>
+      <ol>
+        <li class="lead">是否创建了当前子域名的隧道</li>
+        <li class="lead">是否在后台设置中禁用了当前隧道</li>
+        <li class="lead">是否启动了客户端并登录成功</li>
+      </ol>
+    </main>
+  </div>
+
+  <footer class="border-top footer text-muted">
+    <div class="container">
+      <a href="https://github.com/SpringHgui/FastTunnel" target="_blank">© Power By FastTunnel</a>
+    </div>
+  </footer>
+</body>
+
+</html>

FastTunnel.Core/SocketSwap.cs

@@ -72,6 +72,10 @@ namespace FastTunnel.Core
 
                     if (!chanel.Send.Connected)
                         break;
+
+                    var str = Encoding.UTF8.GetString(result, 0, num);
+                    Console.Write(str);
+
                     chanel.Send.Send(result, num, SocketFlags.None);
                 }
                 catch (Exception ex)

FastTunnel.Server/Properties/PublishProfiles/FolderProfile.pubxml

@@ -9,5 +9,6 @@ https://go.microsoft.com/fwlink/?LinkID=208121.
     <Platform>Any CPU</Platform>
     <TargetFramework>netcoreapp3.1</TargetFramework>
     <PublishDir>bin\Release\netcoreapp3.1\publish\</PublishDir>
+    <SelfContained>false</SelfContained>
   </PropertyGroup>
 </Project>

SuiDao.Server/Properties/PublishProfiles/FolderProfile.pubxml

@@ -9,5 +9,6 @@ https://go.microsoft.com/fwlink/?LinkID=208121.
     <Platform>Any CPU</Platform>
     <TargetFramework>netcoreapp3.1</TargetFramework>
     <PublishDir>bin\Release\netcoreapp3.1\publish\</PublishDir>
+    <SelfContained>false</SelfContained>
   </PropertyGroup>
 </Project>