sms_exec.py

The program executes remote commands sent in via SMS and replies with the command output.

#!/usr/bin/env python
#
# sms_exec.py
#
# A sample application of PyHumod.
# by Slawek Ligus <root at ooz ie>
#

import os
import humod

def sms_exec(modem, message):
    """Execute a shell command from an text message."""
    # Stripping message header and \r\n trailer.
    msg_num = int(message[12:].strip())
    command = modem.read_message(msg_num)
    for msg_header in modem.list_messages():
        if msg_header[0]==msg_num:
            textback_num = msg_header[2]
            break
    print 'Executing %r' % command
    cmd_exec = os.popen(command)
    output = cmd_exec.read()
    print 'Sending the output back to %s output: %s' % (textback_num, output)
    modem.send_text(textback_num, output)

if __name__=='__main__':
    modem = humod.Modem()
    sms_action = (humod.actions.PATTERN['new sms'], sms_exec)
    actions = [sms_action]
    modem.enter_text_mode()
    modem.enable_nmi(True)
    modem.prober.start(actions)
    print 'Waiting for commands. CTRL+C to exit.'
    while 1:
      try:
        raw_input()
      except KeyboardInterrupt:
        break

    modem.prober.stop()
    print 'Exiting.'