117 lines
4.0 KiB
Python
Executable File
117 lines
4.0 KiB
Python
Executable File
import argparse
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import os
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import re
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import signal
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import sys
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from platypush.bus import Bus
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from platypush.config import Config
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from platypush.message.request import Request
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from platypush.message.response import Response
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from platypush.utils import init_backends
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def print_usage():
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print ('''Usage: {} [-h|--help] <-t|--target <target name>> <-a|--action <action name>> payload
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-h, --help:\t\tShow this help and exit
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-c, --config:\tPath to the platypush config.yaml (default: ~/.config/platypush/config.yaml or /etc/platypush/config.yaml)
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-b, --backend:\tBackend to deliver the message [pushbullet|kafka] (default: whatever specified in your config with pusher=True)
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-t, --target:\tName of the target device/host
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-T, --timeout:\tThe application will wait for a response for this number of seconds (default: 5 seconds. A zero value means that the application will exit without waiting for a response)
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-a, --action\tAction to run, it includes both the package name and the method (e.g. shell.exec or music.mpd.play)
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payload:\t\tArguments to the action
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'''.format(sys.argv[0]))
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_DEFAULT_TIMEOUT_SEC=5
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def pusher(target, action, backend=None, config=None,
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timeout=_DEFAULT_TIMEOUT_SEC, **kwargs):
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def on_timeout(signum, frame):
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raise RuntimeError('Response timed out after {} seconds'.format(
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timeout))
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Config.init(config)
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if target == 'localhost':
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backend = 'local'
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elif not backend:
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backend = Config.get_default_pusher_backend()
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req = Request.build({
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'target' : target,
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'action' : action,
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'args' : kwargs,
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})
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bus = Bus()
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backends = init_backends(bus=bus)
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if backend not in backends:
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raise RuntimeError('No such backend configured: {}'.format(backend))
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b = backends[backend]
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b.start()
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b.send_request(req)
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if timeout:
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signal.signal(signal.SIGALRM, on_timeout)
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signal.alarm(timeout)
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response_received = False
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while not response_received:
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msg = bus.get()
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response_received = isinstance(msg, Response) and (
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hasattr(msg, 'id') and msg.id == req.id)
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signal.alarm(0)
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print('Response received!')
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os._exit(0)
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('--config', '-c', dest='config', required=False,
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default=None, help="Configuration file path (default: " +
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"~/.config/platypush/config.yaml or " +
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"/etc/platypush/config.yaml")
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parser.add_argument('--target', '-t', dest='target', required=True,
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help="Destination of the command")
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parser.add_argument('--action', '-a', dest='action', required=True,
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help="Action to execute, as package.method")
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parser.add_argument('--backend', '-b', dest='backend', required=False,
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default=None, help="Backend to deliver the message " +
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"[pushbullet|kafka|local] (default: whatever " +
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"specified in your config with pusher=True)")
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parser.add_argument('--timeout', '-T', dest='timeout', required=False,
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default=_DEFAULT_TIMEOUT_SEC, help="The application " +
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"will wait for a response for this number of seconds " +
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"(default: " + str(_DEFAULT_TIMEOUT_SEC) + " seconds. "
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"A zero value means that the application " +
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" will exit without waiting for a response)")
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opts, args = parser.parse_known_args(sys.argv[1:])
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if len(args) % 2 != 0:
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raise RuntimeError('Odd number of key-value options passed: {}'.
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format(args))
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payload = {}
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for i in range(0, len(args), 2):
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payload[re.sub('^-+', '', args[i])] = args[i+1]
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pusher(target=opts.target, action=opts.action,
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backend=opts.backend, config=opts.config, timeout=opts.timeout,
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**payload)
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if __name__ == '__main__':
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main()
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# vim:sw=4:ts=4:et:
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