RedirectStandardInput 对 powershell 远程执行没有影响

Question

我正在尝试为 powershell.exe 远程执行重定向输入。

它给了我下一个输出：

Windows PowerShell 版权所有 (C) 2009 Microsoft Corporation。保留所有权利。

主机接收失败 10054

看起来它调用了powershell，但是下一个命令没有作为输入传递，没有任何反应，所以进程超时退出。

为什么？ PowerShell是否有一些特定的输入，所以它不能像这样启动？有什么解决方法吗？

PS 如下执行：

RemoteExecute.ExecutePowerShell(testPSName, testIp, testUserName, testPasswd);

执行PowerShell：

FTPTransfer.SendBinary(shellScriptName, ipaddress, userName, password); // This one sends script to remote system. Works OK.
string fullFilePath = "\"" + FTPTransfer.UploadDirectoryRootPath + shellScriptName + "\"";

string cmd;
using (StringWriter sw = new StringWriter())
{
                //sw.WriteLine("powershell.exe"); // Tried launch remexec with cmd, and then pass powershell as first parameter. Results the same, as now, so no matter.
                sw.WriteLine("Set-ExecutionPolicy RemoteSigned");
                sw.WriteLine(fullFilePath);

                cmd = sw.ToString();
}
result = ExecutePSCommandWithInput(cmd, ipaddress, userName, password);

ExecutePSCommandWithInput：

//command = cmd from ExecutePowerShell
string remexecCmd = "remexec.exe";
string remexecArgs = string.Format("{0} -q -t {1} -l {2} -p {3} powershell.exe 2>&1", ipaddress, timeout, userName, password);
result = Common.ExecuteCmdWithInput(remexecCmd, remexecArgs, command, out outp, timeout);

ExecuteCmdWithInput：

public static int ExecuteCmdWithInput(string mainCmd, string arguments, string commands, out string output, int timeout = 60000)
        {
            List<string> commandsArr = new List<string>();
            using (StringReader sr = new StringReader(commands))
            {
                string line = sr.ReadLine();
                while (!string.IsNullOrEmpty(line))
                {
                    commandsArr.Add(line);
                    line = sr.ReadLine();
                }
            }

            return ExecuteCmdWithInput(mainCmd, arguments, commandsArr.ToArray(), out output, timeout);
        }
public static int ExecuteCmdWithInput(string mainCmd, string arguments, string[] commands, out string output, int timeout = 60000)
        {
            Process p = new Process();
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.RedirectStandardInput = true;
            p.StartInfo.RedirectStandardError = true;
            p.StartInfo.CreateNoWindow = true;
            p.StartInfo.FileName = mainCmd;
            p.StartInfo.Arguments = arguments;
            p.Start();
            using (StreamWriter inputWriter = p.StandardInput)
            {
                foreach(string line in commands)
                {
                    inputWriter.WriteLine(line);
                }
            }

            output = p.StandardOutput.ReadToEnd();
            output += Environment.NewLine;
            output += p.StandardError.ReadToEnd();
            p.WaitForExit(timeout);

            return p.ExitCode;
        }

Answer 1

PowerShell 不使用标准输入或输出，因此我不得不使用解决方法或不同的实现。

这样解决：

string remexecArgs = string.Format("{0} -q -t {1} -l {2} -p {3} cmd 2>&1", ipaddress, timeout, userName, password);

接下来作为输入传递：

using (StringWriter sw = new StringWriter())
{
   sw.WriteLine("powershell.exe -Command Set-ExecutionPolicy RemoteSigned");
   sw.WriteLine();
   string logFilePath = "\"" + FTPTransfer.UploadDirectoryRootPath + shellScriptName + ".log\"";
   sw.WriteLine("powershell.exe -File " + fullFilePath + " " + (pars ?? string.Empty) + "> " + logFilePath);
   sw.WriteLine();
   sw.WriteLine();
   sw.WriteLine("type " + logFilePath);

   cmd = sw.ToString();
}
ExecuteOneCommandWithInput(cmd, ipaddress, userName, password, timeoutS);

空行不宜，否则卡住

并为进程本身添加了小技巧：

Process p = new Process();
p.StartInfo.UseShellExecute = false;
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.RedirectStandardInput = true;
p.StartInfo.RedirectStandardError = true;
p.StartInfo.CreateNoWindow = true;
p.StartInfo.FileName = mainCmd;
p.StartInfo.Arguments = arguments;
p.Start();
using (StreamWriter inputWriter = p.StandardInput)
{
   foreach(string line in commands)
   {
      //Wait before next input in case when empty string passed
      if (string.IsNullOrEmpty(line))
         System.Threading.Thread.Sleep(1000 * 2);

      inputWriter.WriteLine(line);
   }
}
output = p.StandardOutput.ReadToEnd();
output += Environment.NewLine;
output += p.StandardError.ReadToEnd();
p.WaitForExit(timeout);