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