64 lines
1.7 KiB
Python
64 lines
1.7 KiB
Python
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# Copyright 2011 Florent Le Coz <louiz@louiz.org>
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#
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# This file is part of Poezio.
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#
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# Poezio is free software: you can redistribute it and/or modify
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# it under the terms of the zlib license. See the COPYING file.
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"""
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This file is a standalone program that creates a fifo file (if it doesn’t exist
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yet), opens it for reading, reads commands from it and executes them (each line
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should be a command).
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Usage: ./daemon.py <path_tofifo>
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That fifo should be in a directory, shared through sshfs, with the remote
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machine running poezio. Poezio then writes command in it, and this daemon
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executes them on the local machine.
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Note that you should not start this daemon if you do not trust the remote
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machine that is running poezio, since this could make it run any (dangerous)
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command on your local machine.
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"""
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import sys
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import threading
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import subprocess
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from fifo import Fifo
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class Executor(threading.Thread):
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"""
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Just a class to execute commands in a thread.
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This way, the execution can totally fail, we don’t care,
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and we can start commands without having to wait for them
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to return
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"""
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def __init__(self, command):
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threading.Thread.__init__(self)
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self.command = command
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def run(self):
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print('executing %s' % (self.command,))
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subprocess.call(self.command.split())
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def main(path):
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while True:
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fifo = Fifo(path, 'r')
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while True:
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line = fifo.readline()
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if line == '':
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del fifo
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break
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e = Executor(line)
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e.start()
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def usage():
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print('Usage: %s <fifo_name>' % (sys.argv[0],))
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if __name__ == '__main__':
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argc = len(sys.argv)
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if argc != 2:
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usage()
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else:
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main(sys.argv[1])
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