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c# - c# Core System.Management.Automation 远程连接错误

问题描述

我正在尝试编写一个 C# 核心程序来在远程 linux 系统上运行 powershell 脚本。在 .net 核心上运行是该项目的要求。我试图松散地遵循我在CodeProject上找到的指南上找到的指南。

这是我的代码：

using System;
using System.Management.Automation;
using System.Management.Automation.Runspaces;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {

            SSHConnectionInfo connectionInfo = new SSHConnectionInfo(userName: "user", computerName: "server", keyFilePath: "id_rsa");


            using (Runspace runspace = RunspaceFactory.CreateRunspace(connectionInfo))
            {
                runspace.Open(); // The program errors out here
                runspace.Close();

            }

        }
    }
}

我的“id_rsa”文件与程序位于同一文件夹中。我已验证 windows、powershell core 6.0.2 和 .net core 2 SDK 的 openssh 已安装并正常工作。我正在使用Microsoft Powershell Core 存储库中的以下 nuget 包：Microsoft.PowerShell.SDK (6.0.2) 和 Sytem.Managment.Automation (6.0.2)

这是我收到的错误：

Unhandled Exception: System.Management.Automation.Remoting.PSRemotingDataStructureException: An error has occurred which PowerShell cannot handle. A remote session might have ended. ---> System.ArgumentException: The path is not of a legal form.
Parameter name: path
   at System.IO.Path.GetDirectoryName(String path)
   at System.Management.Automation.Runspaces.SSHConnectionInfo.StartSSHProcess(StreamWriter& stdInWriterVar, StreamReader& stdOutReaderVar, StreamReader& stdErrReaderVar)
   at System.Management.Automation.Remoting.Client.SSHClientSessionTransportManager.CreateAsync()
   at System.Management.Automation.Remoting.ClientRemoteSessionDSHandlerImpl.SendNegotiationAsync(RemoteSessionState sessionState)
   at System.Management.Automation.Remoting.ClientRemoteSessionDSHandlerImpl.HandleStateChanged(Object sender, RemoteSessionStateEventArgs arg)
   at System.Management.Automation.ExtensionMethods.SafeInvoke[T](EventHandler`1 eventHandler, Object sender, T eventArgs)
   at System.Management.Automation.Remoting.ClientRemoteSessionDSHandlerStateMachine.RaiseStateMachineEvents()
   at System.Management.Automation.Remoting.ClientRemoteSessionDSHandlerStateMachine.ProcessEvents()
   --- End of inner exception stack trace ---
   at System.Management.Automation.Runspaces.AsyncResult.EndInvoke()
   at System.Management.Automation.Runspaces.Internal.RunspacePoolInternal.EndOpen(IAsyncResult asyncResult)
   at System.Management.Automation.Runspaces.Internal.RemoteRunspacePoolInternal.Open()
   at System.Management.Automation.RemoteRunspace.Open()
   at ConsoleApp1.Program.Main(String[] args) in C:\ConsoleApp1\ConsoleApp1\Program.cs:line 18
Press any key to continue . . .

在这一点上，我不确定我错过了什么。

标签： c#powershell.net-core

解决方案

我最终在 github 上为这个错误打开了一个问题。当前要解决此问题，您需要将以下代码添加到您的程序中，直到此问题在未来版本的 powershell 核心（>6.0.4 或>6.1.0-rc.1）中得到解决。这是有关该问题的具体帖子。

if (System.Management.Automation.Runspaces.Runspace.DefaultRunspace == null)
{
    var defaultRunspace = RunspaceFactory.CreateRunspace();
    defaultRunspace.Open();
    System.Management.Automation.Runspaces.Runspace.DefaultRunspace = defaultRunspace;
}

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