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jborean93 / pypsrp

PowerShell Remoting Protocol for Python
MIT License
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execute_cmd doesn't accept CLI argument #188

Closed rvan1 closed 6 months ago

rvan1 commented 6 months ago

Command to run fileloader app with filename argument doesn't work. The app responds with ArgumentNullException - the argument value can not be null.

client.execute_cmd("C:\opt\loader\Load834.exe XYZ_834_20240501.EDI")

Why doesn't it just run the command with argument as I've passed them in?

That's pretty typical isn't it, passing a CLI argument to a console app?

jborean93 commented 6 months ago

Looks like I never added a way to specify arguments as part of the client execute_cmd API. You are achieve the same thing by doing execute_ps here though. Your example should work as is there. Otherwise you can use the underlying low level API that execute_cmd is wrapping.

from pypsrp.shell import WinRS, Process, SignalCode
from pypsrp.wsman import WSMan

with WSMan("server", ...) as wsman, WinRS(wsman, codepage=65001) as shell:
    process = Process(
        shell,
        "cmd.exe",
        arguments=["arg1", "arg2"],
    )
    process.invoke()
    process.signal(SignalCode.CTRL_C)

    rc = process.rc
    stdout = process.stdout.decode("utf-8")
    stderr = process.stderr.decode("utf-8")
rvan1 commented 6 months ago

OK thanks. Sorry to waste your time as I was trying to test some difficult scenarios. It's seems that the client actually will take the arg along with the cmd no problem. The console app originally read/loaded files form 'inbound' directory, but now I've built a version with slightly different name and I'm passing a specific filename via CLI arg so it will only load that one, regardless of other files. The app is also using newtonsoft.dll to parse a few json values I set up in the app config, as a way to inject alternate 'done' paths to move file to. By convention, the config filename has to match the app filename, but I didn't provide one when I moved the app to test on a different server. Since it had no proper conf file, when newtonsoft went to read the json, there was a string arg can't be null error, which I confused with meaning my filename arg wasn't getting passed in, but the error isn't about that.