页面控制_matrix控制台-优快云博客

本文链接：https://blog.youkuaiyun.com/Matrix_Designer/article/details/5923965

本文介绍了一个基于ASP.NET的远程控制台页面的设计与实现，该控制台通过浏览器输入命令并实时显示结果，适用于远程维护场景。利用JavaScript进行前端交互控制，并通过C#后台代码实现命令执行与反馈。

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前些天写了一个页面控制台,主要是为了方便远程维护用的.由于系统以ASPNET用户运行控制台程序,所以权限仅为USERS组的权限.可以将此帐户添加到ADMINISTRATORS组中,从而可以得到超级权限.这个功能为远程维护提供了方便.运行效果如下:

页面(Console.aspx)代码如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Console.aspx.cs" Inherits="Console_Test" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<html xmlns=" http://www.w3.org/1999/xhtml ">
<head runat="server">
    <title>控制台</title>
    <script language="javascript" type="text/javascript">

        function $(ctlID)
        {
            return document.getElementById(ctlID);
        }

        function Trim(str)
        {
            var start=0,end=str.length-1;
            while(start<str.length && str.charAt(start) == ' ')
                start++;
            while(end>=start && str.charAt(end) == ' ')
                end--;
            return str.substring(start,end + 1);
        }

        window.onload = function()
        {
            $('txtInput').focus();
        }

        function CheckInput()
        {
            if(Trim($('txtInput').value) == "cls")
            {
                $('txtInput').value = "";
                $('txtOutput').value = "";
                $('txtOutput').style.display = "none";
                return;
            }

            $('txtInput').style.display = "none";

            Console_Test.SolveCommand($('txtInput').value,SolveBack)

            if(Trim($('txtOutput').value) == "")
            {
                $('txtOutput').style.display = "block";
            }
            $('txtInput').value = "";

            function SolveBack(response)
            {
                var prompt = Trim(response.value.substring(0,response.value.indexOf('>')+1));
                var index = prompt.length-1;
                while(index>=0 && prompt.charAt(index) != '/r' && prompt.charAt(index) != '/n')
                {
                    index--;
                }
                $('lblPrompt').innerText = prompt.substring(index+1);

                $('txtOutput').value += response.value;
                $('txtInput').style.display = "block";
                divPanel.doScroll("bottom");

                $('txtInput').focus();
            }
        }
    </script>
</head>
<body>
    <form id="form1" runat="server" ondblclick="if($('txtInput').style.display!='none')$('txtInput').focus();">
        <table style="width: 100%;" border="0" cellspacing="0" cellpadding="0">
            <tr>
                <td align="center" style="height: 41px; vertical-align: text-center; font-size: 23px">
                    控制台
                </td>
            </tr>
            <tr>
                <td>
                    <div id="divPanel" style="width: 99.8%; height: 420px; overflow: auto; border-right: #000000 1px solid;
                        border-top: #000000 1px solid; border-left: #000000 1px solid; border-bottom: #000000 1px solid;
                        text-align: center; background-color: Black">
                        <table style="width: 97%;" border="0" cellspacing="0" cellpadding="0">
                            <tr>
                                <td style="text-align: left">
                                    <textarea readonly="readonly" style="width: 100%; display: none; overflow-y: visible;
                                        background-color: Black; color: White; border-top-style: none; border-right-style: none;
                                        border-left-style: none; border-bottom-style: none;" id="txtOutput"></textarea>
                                </td>
                            </tr>
                            <tr>
                                <td style="text-align: left">
                                    <table style="width: 100%;" border="0" cellspacing="0" cellpadding="0">
                                        <tr>
                                            <td style="width: 0%;">
                                                <label id="lblPrompt" style="background-color: Black; color: White;">
                                                    C:/</label>
                                            </td>
                                            <td style="width: 100%;">
                                                <input type="text" id="txtInput" style="width: 100%; background-color: Black; color: White;
                                                    border-top-style: none; border-right-style: none; border-left-style: none; border-bottom-style: none;"
                                                    onkeydown="if(event.keyCode == 13){CheckInput();return false;}" />
                                            </td>
                                        </tr>
                                    </table>
                                </td>
                            </tr>
                        </table>
                    </div>
                </td>
            </tr>
        </table>
    </form>
</body>
</html>
后台(Console.aspx.cs)代码如下:
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Threading;
using System.Diagnostics;
public partial class Console_Test : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Ajax.Utility.RegisterTypeForAjax(typeof(Console_Test));
    }
    private Process CreateProcess()
    {
        Process process = new Process();
        process.StartInfo.FileName = "cmd.exe";
        process.StartInfo.CreateNoWindow = true;
        process.StartInfo.UseShellExecute = false;
        process.StartInfo.RedirectStandardInput = true;
        process.StartInfo.RedirectStandardError = true;
        process.StartInfo.RedirectStandardOutput = true;
        process.EnableRaisingEvents = true;
        process.OutputDataReceived += new DataReceivedEventHandler(process_OutputDataReceived);
        process.ErrorDataReceived += new DataReceivedEventHandler(process_ErrorDataReceived);
        process.Exited += new EventHandler(process_Exited);
        process.Start();
        process.BeginErrorReadLine();
        process.BeginOutputReadLine();
        string machinePath = Server.MapPath("..");
        if (machinePath.Substring(0, 1).ToUpper() != "C")
        {
            process.StandardInput.WriteLine(machinePath.Substring(0, 1).ToUpper() + ":");
        }
        process.StandardInput.WriteLine("CD " + machinePath);
        Thread thread = new Thread(process_Watch);
        thread.Start(process);
        return process;
    }
    void process_Exited(object sender, EventArgs e)
    {
        Session["OSShellProcess"] = null;
    }
    void process_ErrorDataReceived(object sender, DataReceivedEventArgs e)
    {
        Session["OSShellProcessData"]
            = (string)Session["OSShellProcessData"] + e.Data + "/r/n";
        Session["OSShellProcessTime"] = DateTime.Now;
    }
    void process_OutputDataReceived(object sender, DataReceivedEventArgs e)
    {
        Session["OSShellProcessData"]
            = (string)Session["OSShellProcessData"] + e.Data + "/r/n";
        Session["OSShellProcessTime"] = DateTime.Now;
    }
    void process_Watch(object e)
    {
        Process process = (Process)e;
        if (process.WaitForExit(600000) == false)
        {
            process.Kill();
        }
    }
    [Ajax.AjaxMethod(Ajax.HttpSessionStateRequirement.ReadWrite)]
    public string SolveCommand(string commandLine)
    {
        Process process = (Process)Session["OSShellProcess"];
        if (process == null)
        {
            process = CreateProcess();
            Session["OSShellProcess"] = process;
        }
        process.StandardInput.WriteLine(commandLine);
        Session["OSShellProcessTime"] = DateTime.Now;
        for (int i = 0; i < 100; i++)
        {
            if (process.WaitForExit(200) == true || DateTime.Now > ((DateTime)Session["OSShellProcessTime"]).AddMilliseconds(160))
            {
                break;
            }
        }
        string backData = (string)Session["OSShellProcessData"];
        Session["OSShellProcessData"] = "";
        return backData == null ? "" : backData;
    }
}