在PS脚本中将powershell变量传递给C#代码

我读了很多关于将变量从C#传递到powershell脚本的文章，但我对另一方面很感兴趣

下面是我在powershell脚本中创建类型的代码：

Add-Type @'

public class Node
{

    public string Type;
    public string VM_Name;
    public string VM_IP;
    public string Hostname;

}
'@

$vm1 = New-Object Node
$vm2 = New-Object Node
$vm3 = New-Object Node
$vm4 = New-Object Node

Add-Type -TypeDefinition @'

using System;
using System.Threading.Tasks;
using System.Net;
using System.Windows.Forms;

namespace LocalHostListener
{
    public class Program
    {
        HttpListener listener = new HttpListener();

            public static void Main(string[] args)
            {
                    Program program = new Program();
                    program.Start(args[0]);
            }

            public void Start(string url_)
            {
                    listener.Prefixes.Add(url_);
                    listener.Start();
                    listener.BeginGetContext(new AsyncCallback(GetContextCallback), null);
                    Console.ReadLine();
                    listener.Stop();
            }

            public void GetContextCallback(IAsyncResult result)
            {
            HttpListenerContext context = listener.EndGetContext(result);
            HttpListenerRequest request = context.Request;
            HttpListenerResponse response = context.Response;

            Task.Factory.StartNew(() => 
            {
                // KICK OFF YOUR UPDATE ACTIONS HERE (THE LENGTH FILTER EXCLUDES BROWSER CALLS)
                if(request.ContentType.Length>0) yourAction(request.ContentType);
            });

                // SEND A RESPONSE TO KEEP POWERSHELL Invoke-WebRequest,
                // BROWSERS AND VBS MSXML2.XMLHTTP.6.0 HAPPY
                // (C# HttpWebRequest DOESN'T CARE)
                    response.ContentLength64 = 1;
            response.OutputStream.WriteByte(Convert.ToByte('!'));

                    listener.BeginGetContext(new AsyncCallback(GetContextCallback), null);
            }

        public void yourAction(string update)
        {
            Console.WriteLine(update); 
            MessageBox.Show(new Form(), update,"Message from localhost feed",
             MessageBoxButtons.OK,MessageBoxIcon.None,
               MessageBoxDefaultButton.Button1,(MessageBoxOptions)0x40000);
        }
    }
}

'@ -Language CSharp -ReferencedAssemblies System.Windows.Forms

$Host.UI.RawUI.WindowTitle='Monitoring "Content-Type" on http://localhost:1959'
[LocalHostListener.Program]::Main('http://localhost:1959/')

Add-Type -TypeDefinition @'

using System;
using System.Net;

namespace LocalHostSender
{
    public class Program
    {
        public static void Main(string[] args)
        {
            try{
                    HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://localhost:1959");
                    request.ContentType = args[0];
                    request.Timeout = 200;
                    request.GetResponse();          
            }catch{}
        }
    }
}

'@ -Language CSharp -ReferencedAssemblies System.Net

[LocalHostSender.Program]::Main("Your message here")

在这段代码之后，我有C#代码：

---

如何访问上述C#代码中的$vm1,2,3,4？

您可以通过C#类中的方法将变量传递到类型中，该方法将接受变量作为参数，例如：

$form = new-object Form1
$form.SetVariables($vm1, $vm2, $vm3, $vm4)

我建议采取这种做法

另一种选择（重量更重且未测试）是尝试从C代码访问当前运行空间，例如：

var defRunspace = System.Management.Automation.Runspaces.Runspace.DefaultRunspace;
var pipeline = defRunspace.CreateNestedPipeline();
pipeline.Commands.AddScript("$vm1,$vm2,$vm3,$vm4");
var results = pipeline.Invoke();
var vm1 = results[0];
var vm2 = results[1];
...

---

我还没有从C#代码（仅在PowerShell中）尝试过这一点，所以我不能100%确定它是否能工作

将变量传递给在Powershell中运行的C#脚本的一种方法是使用HttpListener（监视本地主机端口）来获取内容类型。“内容类型”字段最多可以包含16000个字符，我使用它来防止计算机上的同事使用浏览器创建虚假输入

此处显示的侦听器位于独立的Powershell脚本中：

Add-Type @'

public class Node
{

    public string Type;
    public string VM_Name;
    public string VM_IP;
    public string Hostname;

}
'@

$vm1 = New-Object Node
$vm2 = New-Object Node
$vm3 = New-Object Node
$vm4 = New-Object Node

Add-Type -TypeDefinition @'

using System;
using System.Threading.Tasks;
using System.Net;
using System.Windows.Forms;

namespace LocalHostListener
{
    public class Program
    {
        HttpListener listener = new HttpListener();

            public static void Main(string[] args)
            {
                    Program program = new Program();
                    program.Start(args[0]);
            }

            public void Start(string url_)
            {
                    listener.Prefixes.Add(url_);
                    listener.Start();
                    listener.BeginGetContext(new AsyncCallback(GetContextCallback), null);
                    Console.ReadLine();
                    listener.Stop();
            }

            public void GetContextCallback(IAsyncResult result)
            {
            HttpListenerContext context = listener.EndGetContext(result);
            HttpListenerRequest request = context.Request;
            HttpListenerResponse response = context.Response;

            Task.Factory.StartNew(() => 
            {
                // KICK OFF YOUR UPDATE ACTIONS HERE (THE LENGTH FILTER EXCLUDES BROWSER CALLS)
                if(request.ContentType.Length>0) yourAction(request.ContentType);
            });

                // SEND A RESPONSE TO KEEP POWERSHELL Invoke-WebRequest,
                // BROWSERS AND VBS MSXML2.XMLHTTP.6.0 HAPPY
                // (C# HttpWebRequest DOESN'T CARE)
                    response.ContentLength64 = 1;
            response.OutputStream.WriteByte(Convert.ToByte('!'));

                    listener.BeginGetContext(new AsyncCallback(GetContextCallback), null);
            }

        public void yourAction(string update)
        {
            Console.WriteLine(update); 
            MessageBox.Show(new Form(), update,"Message from localhost feed",
             MessageBoxButtons.OK,MessageBoxIcon.None,
               MessageBoxDefaultButton.Button1,(MessageBoxOptions)0x40000);
        }
    }
}

'@ -Language CSharp -ReferencedAssemblies System.Windows.Forms

$Host.UI.RawUI.WindowTitle='Monitoring "Content-Type" on http://localhost:1959'
[LocalHostListener.Program]::Main('http://localhost:1959/')

Add-Type -TypeDefinition @'

using System;
using System.Net;

namespace LocalHostSender
{
    public class Program
    {
        public static void Main(string[] args)
        {
            try{
                    HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://localhost:1959");
                    request.ContentType = args[0];
                    request.Timeout = 200;
                    request.GetResponse();          
            }catch{}
        }
    }
}

'@ -Language CSharp -ReferencedAssemblies System.Net

[LocalHostSender.Program]::Main("Your message here")

然后，您可以使用Powershell WebRequest更新侦听器：

Invoke-WebRequest -ContentType 'Your message here' -URI http://localhost:1959

Invoke-WebRequest 'http://localhost:1959/Your message here'
Invoke-WebRequest 'http://localhost:1959/?q=Your message here'

还可以使用C#发送器将更新发送给侦听器，该发送器使用变量设置内容类型（同样，在独立的Powershell脚本中显示）：

如果只使用C#发送方，则可以删除侦听器脚本的响应部分

此方法的另一个优点是VBS脚本还可以更新内容类型：

text_ = "Your message here"

Randomize
Set req = CreateObject("MSXML2.XMLHTTP.6.0")
req.open "GET", "http://localhost:1959/" & rnd, False
req.setRequestHeader "Content-Type", text_
req.send
'req.responseText

如果要循环多个请求，则需要对页面请求进行随机添加，因为MSXML2.XMLHTTP.6.0不会在相同的页面请求上发送内容类型信息

如果确实需要浏览器/HTML访问，可以使用以下方法在侦听器中获取页面请求：

string simplePageRequest_ = request.Url;
//Parsing "favicon.ico" and "http://localhost:1959/"

string pageQuery_ = request.QueryString["q"];

通过浏览器页面请求或再次使用Powershell WebRequest更新：

Invoke-WebRequest -ContentType 'Your message here' -URI http://localhost:1959

Invoke-WebRequest 'http://localhost:1959/Your message here'
Invoke-WebRequest 'http://localhost:1959/?q=Your message here'