123

NetPanel.Bl/SshBl.cs

@@ -16,47 +16,109 @@ namespace NetPanel.Bl
         private string _pwd = "";
         private string _host = "";
 
-        private SshClient client = null;
+        /// <summary>
+        /// 客户端
+        /// </summary>
+        private SshClient _client = null;
+        /// <summary>
+        /// sell
+        /// </summary>
+        private ShellStream _shellStream = null;
+        /// <summary>
+        /// 读取流
+        /// </summary>
+        private StreamReader _reader = null;
+        /// <summary>
+        /// 写入流
+        /// </summary>
+        private StreamWriter _writer = null;
 
-        public SshBl(string host, string username, string pwd)
+        /// <summary>
+        /// 是否连接完成
+        /// </summary>
+        private bool _isConnected = false;
+
+
+
+
+
+        /// <summary>
+        /// ssh连接
+        /// </summary>
+        /// <param name="host">ip</param>
+        /// <param name="username">登录用户</param>
+        /// <param name="pwd">登录密码</param>
+        /// <param name="columns">单元格</param>
+        /// <param name="rows">行</param>
+        /// <param name="width">宽</param>
+        /// <param name="height">高</param>
+        public SshBl(string host, string username, string pwd, uint columns, uint rows, uint width, uint height)
         {
             _username = username;
             _pwd = pwd;
             _host = host;
-            client = new SshClient(host, username, pwd);
+            _client = new SshClient(host, username, pwd);
-            client.Connect();
+            _client.Connect();
-        }
+            if (_client.IsConnected)
-
-
-
-        public StreamReader RunCommand(string command)
             {
-
+                _shellStream = _client.CreateShellStream("xterm", columns, rows, width, height, 1024);
-            var sshCommand = client.CreateCommand(command);
+                _reader = new StreamReader(_shellStream);
-            var asyncExecute = sshCommand.BeginExecute();
+                _writer = new StreamWriter(_shellStream);           
-
+            }
-            return new StreamReader(sshCommand.OutputStream);
-            //string outStr;
-            //while ((outStr = reader.ReadLine()) != null)
-            //{
-
-            //}        
         }
 
-        public string ServerVersion()
+
+        /// <summary>
+        /// 单条读取,可循环读取
+        /// </summary>
+        /// <returns></returns>
+
+        public string ReadLine()
         {
-            return client.ConnectionInfo.ServerVersion;
+            return _reader.ReadLine();
-          
         }
 
+        /// <summary>
+        ///  写入命令
+        /// </summary>
+        /// <returns></returns>
+
+        public void WriteLine(string line)
+        {
+            _writer.WriteLine(line);
+        }
+
+
+
+        /// <summary>
+        /// 全部读取,可循环读取
+        /// </summary>
+        /// <returns></returns>
+        public string ReadToEnd()
+        {
+            return _reader.ReadToEnd();
+        }
+
+
+        /// <summary>
+        /// Ssh 客户端 
+        /// </summary>
+        public SshClient Client { get { return _client; } }
+
 
         /// <summary>
         /// 关闭
         /// </summary>
         public void Dispose()
         {
-            client.Disconnect();
+
-            client.Dispose();
+            if (_writer != null) _writer.Close();
+            if (_reader != null) _reader.Close();
+            //if (_shellStream != null) _shellStream.Close();
+            if (_shellStream != null) _shellStream.Dispose();
+
+            if (_client != null) { _client.Disconnect(); _client.Dispose(); }
+
         }
     }
 }

NetPanel/Controllers/SSH/SSHController.cs

@@ -1,7 +1,9 @@
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.SignalR;
 using NetPanel.Bl;
-
+using NetPanel.Help;
+using Renci.SshNet;
+using System.Diagnostics;
 using System.Text;
 
 namespace NetPanel.Controllers.SSH
@@ -13,10 +15,39 @@ namespace NetPanel.Controllers.SSH
 
 
 
-        public IActionResult SSH()
+        public async Task<IActionResult> SSH()
         {
 
-            //SshBl sshBl = new SshBl("172.31.110.239", "root", "123456789");
+            //SshBl sshBl = new SshBl("172.29.119.239", "root", "123456789", 80, 24, 800, 600);
+
+
+
+            //var output = sshBl.ReadLine();
+
+            //sshBl.WriteLine("top");
+            //int cc = 0;
+            //while (true)
+            //{
+            //    var outpu3 = sshBl.Read();
+
+            //    if (cc == 0)
+            //    {
+            //        await Task.Delay(5000);
+            //        sshBl.WriteLine("\x03");
+
+            //        cc = 1;
+            //    }
+            //    else if (cc == 2)
+            //    {
+            //        break;
+            //    }
+
+            //}
+
+
+
+            //sshBl.Dispose();
+
             ////string tt = sshBl.ServerVersion();
             //StringBuilder sbStr = new StringBuilder();
             //string tt = "";

NetPanel/SignalR/ChatHub.cs

@@ -1,7 +1,13 @@
 using Microsoft.AspNetCore.SignalR;
 using NetPanel.Bl;
 using NetPanel.Entity;
+using NetPanel.Help;
+using Renci.SshNet.Common;
 using Renci.SshNet.Messages;
+using System;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Net.Sockets;
 using System.Security.Cryptography;
 using System.Text;
 
@@ -10,6 +16,15 @@ namespace NetPanel.SignalR
     public class ChatHub : Hub
     {
 
+        /// <summary>
+        /// ssh 管理
+        /// </summary>
+        private static Dictionary<string, SshBl> dicSsh = new Dictionary<string, SshBl>();
+
+        /// <summary>
+        /// 建立连接时
+        /// </summary>
+        /// <returns></returns>
         public override async Task OnConnectedAsync()
         {
 
@@ -25,30 +40,114 @@ namespace NetPanel.SignalR
             await client.SendAsync("ConnectionId", rm);
         }
 
+        /// <summary>
+        /// 断开异步时
+        /// </summary>
+        /// <param name="exception"></param>
+        /// <returns></returns>
 
-        public async Task<ReturnMsg> CreateConnectionAsync(string connectionId, string command)
+        public override async Task OnDisconnectedAsync(Exception? ex)
+        {
+            var cid = Context.ConnectionId;
+            if (dicSsh.ContainsKey(cid))
+            {
+                dicSsh[cid].Dispose();
+                dicSsh.Remove(cid);
+            }
+            await base.OnDisconnectedAsync(ex);
+        }
+
+        /// <summary>
+        /// 创建终端链接
+        /// </summary>
+        /// <param name="connectionId"></param>
+        /// <param name="command"></param>
+        /// <returns></returns>
+        public async Task<ReturnMsg> CreateConnectionAsync(uint width, uint height, uint columns, uint rows)
+        {
+
+            var cid = Context.ConnectionId;
+            ReturnMsg rm = new ReturnMsg();
+            rm.Code = 1;
+            if (!dicSsh.ContainsKey(cid))
+            {
+                SshBl ssh = new SshBl("172.29.119.239", "root", "123456789", columns, rows, width, height);
+                dicSsh.Add(cid, ssh);
+                ReceiveMessage(cid);
+            }
+            return rm;
+        }
+
+        /// <summary>
+        /// 写入命令
+        /// </summary>
+        /// <param name="curr_line"></param>
+        /// <returns></returns>
+        public async Task<ReturnMsg> WriteLineAsync(string curr_line)
         {
             ReturnMsg rm = new ReturnMsg();
             rm.Code = 1;
-
+            var cid = Context.ConnectionId;
-            //SshBl sshBl = new SshBl("172.31.110.239", "root", "123456789");
+            if (dicSsh.ContainsKey(cid))
-            ////string tt = sshBl.ServerVersion();
+            {
-            //StringBuilder sbStr = new StringBuilder();
+                dicSsh[cid].WriteLine(curr_line);
-            //string tt = "";
+                ReceiveMessage(cid);
-            //var reader = sshBl.RunCommand("top");
+            }
-            //string outStr = null;
-            //while ((outStr = reader.ReadLine()) != null)
-            //{
-            //    sbStr.Append(outStr + "/r/n");
-            //}
-             rm.Obj = "====>" + command;
-            //根据id获取指定客户端
-            var client = Clients.Client(connectionId);
-
-            //  await client.SendAsync("CreateConnectionAsync", rm);
-
-
             return rm;
         }
+
+
+
+
+        /// <summary>
+        /// 发送响应
+        /// </summary>
+        /// <param name="ssh"></param>
+        /// <returns></returns>
+        public async Task ReceiveMessage(string cid)
+        {
+            ReturnMsg rm = new ReturnMsg();
+            rm.Code = 1;
+            int count = 0;
+            SshBl ssh = dicSsh[cid];
+            //根据id获取指定客户端
+            var client = Clients.Client(cid);
+            while (true)
+            {
+                try
+                {
+                    
+                    string line = ssh.ReadLine();
+                    if (line.IsNotNull())
+                    {
+                        if (line.Contains(":~#"))
+                        {
+                            rm.Code = 2; ;
+                            rm.Obj = line;
+                            await client.SendAsync("ReceiveMessage", rm);
+                            break;
+                        }
+                        else
+                        {
+                            rm.Obj = line + "\n";
+                            await client.SendAsync("ReceiveMessage", rm);
+                        }                       
+                    }
+                    else
+                    {
+                        await Task.Delay(100);
+                    }
+                }
+                catch (Exception ex)
+                {
+                }
+            }
+         
+          
+          
+
+        }
+
+
     }
 }

NetPanel/Views/SSH/SSH.cshtml

@@ -49,8 +49,8 @@
         convertEol: true, //启用时，光标将设置为下一行的开头
         disableStdin: false, //是否应禁用输入。
         theme: {
-            foreground: 'yellow', //字体
+            //  foreground: 'yellow', //字体
-            background: '#060101', //背景色
+            // background: '#060101', //背景色
             cursor: 'help',//设置光标
         }
     });
@@ -58,9 +58,15 @@
     // 获取窗口的宽度和高度。
     const width = window.innerWidth;
     const height = window.innerHeight;
+    const columns = parseInt(width / 10);
+    const rows = parseInt(height / 22);
+
+    //cursorx 这个长度不能删除,用于ev.keyCode === 8
+    var cursorx = 0;
+    
 
     // 调整终端的尺寸。
-    term.resize(parseInt(width / 10), parseInt(height / 22));
+    term.resize(columns, parseInt(height / 22));
 
     //回车输入的内容
     var curr_line = '';
@@ -71,28 +77,36 @@
     var connectionId = '';
 
     term.open(document.getElementById('terminal'));
+
+
     term.prompt = () => {
         term.write('\n\u001b[32m$ >\u001b[37m');
     };
 
-
     //通讯
     var connection = new signalR.HubConnectionBuilder().withUrl("/chatHub").build();
 
 
     //signalR接收消息
-    connection.on("ReceiveMessage", function (user, message) {
+    connection.on("ReceiveMessage", function (msg) {
-        term.write(message);
+        term.write(msg.obj);
+     
     });
 
 
-    //获取通讯id
+    // 已建立连接
     connection.on("ConnectionId", function (msg) {
-
+        //  term.write('Welcome to my Scheme web intepreter!\r\n123');
-        term.write('Welcome to my Scheme web intepreter!\r\n123');
+        //  term.prompt();
-        term.prompt();
         connectionId = msg.obj;
+        //创建 ssh 客户端
+        connection.invoke('CreateConnectionAsync', width, height, columns, rows).then((result) => {
+
         });
+    });
+
+
+
 
 
     // 监听后端终端关闭
@@ -104,26 +118,26 @@
 
 
 
-
-
     term.on('key', function (key, ev) {
 
+     
         const printable = !ev.altKey && !ev.altGraphKey && !ev.ctrlKey && !ev.metaKey
         //const printable = !e.domEvent.altKey && !e.domEvent.altGraphKey && !e.domEvent.ctrlKey && !e.domEvent.metaKey;
-
+        if (cursorx == 0) {
+            cursorx = term.buffer.cursorX;
+        }
         if (ev.keyCode === 13) { // Enter key
             if (curr_line.replace(/^\s+|\s+$/g, '').length != 0) { // Check if string is all whitespace
                 entries.push(curr_line);
                 currPos = entries.length - 1;
                 // term.prompt();
 
-                connection.invoke('CreateConnectionAsync', connectionId, curr_line).then((result) => {
-                    if (result.code == 1) {
-                        //term.prompt();
-                        //term.write(result.obj);
 
-                        term.write('\n' + result.obj);
+                connection.invoke('WriteLineAsync', curr_line).then((result) => {
-                        term.prompt();
+                    if (result.code == 1) {
+                    
+                      //  term.write('\n' + result.obj);
+                       // term.prompt();
                     }
                 });
 
@@ -133,7 +147,7 @@
             }
             curr_line = '';
         } else if (ev.keyCode === 8) { // Backspace
-            if (term.buffer.cursorX > 3) {
+            if (term.buffer.cursorX > cursorx) {
                 curr_line = curr_line.slice(0, -1);
                 term.write('\b \b');
             }