100 lines
2.8 KiB
Python
100 lines
2.8 KiB
Python
import logging
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import sys
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from pykka import registry, actor
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from mopidy import listeners, settings
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from mopidy.frontends.mpd import dispatcher, protocol
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from mopidy.utils import network, process, log
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logger = logging.getLogger('mopidy.frontends.mpd')
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class MpdFrontend(actor.ThreadingActor, listeners.BackendListener):
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"""
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The MPD frontend.
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**Dependencies:**
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- None
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**Settings:**
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- :attr:`mopidy.settings.MPD_SERVER_HOSTNAME`
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- :attr:`mopidy.settings.MPD_SERVER_PORT`
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- :attr:`mopidy.settings.MPD_SERVER_PASSWORD`
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"""
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def __init__(self):
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hostname = network.format_hostname(settings.MPD_SERVER_HOSTNAME)
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port = settings.MPD_SERVER_PORT
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try:
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network.Server(hostname, port, protocol=MpdSession)
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except IOError, e:
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logger.error(u'MPD server startup failed: %s', e)
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sys.exit(1)
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logger.info(u'MPD server running at [%s]:%s', hostname, port)
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def on_stop(self):
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process.stop_actors_by_class(MpdSession)
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def send_idle(self, subsystem):
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# FIXME this should be updated once pykka supports non-blocking calls
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# on proxies or some similar solution
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registry.ActorRegistry.broadcast({
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'command': 'pykka_call',
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'attr_path': ('on_idle',),
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'args': [subsystem],
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'kwargs': {},
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}, target_class=MpdSession)
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def playback_state_changed(self):
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self.send_idle('player')
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def playlist_changed(self):
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self.send_idle('playlist')
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def options_changed(self):
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self.send_idle('options')
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def volume_changed(self):
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self.send_idle('mixer')
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class MpdSession(network.LineProtocol):
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"""
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The MPD client session. Keeps track of a single client session. Any
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requests from the client is passed on to the MPD request dispatcher.
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"""
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terminator = protocol.LINE_TERMINATOR
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encoding = protocol.ENCODING
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def __init__(self, connection):
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super(MpdSession, self).__init__(connection)
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self.dispatcher = dispatcher.MpdDispatcher(self)
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def on_start(self):
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logger.info(u'New MPD connection from [%s]:%s', self.host, self.port)
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self.send_lines([u'OK MPD %s' % protocol.VERSION])
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def on_line_received(self, line):
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logger.debug(u'Request from [%s]:%s to %s: %s', self.host, self.port,
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self.actor_urn, line)
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response = self.dispatcher.handle_request(line)
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if not response:
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return
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logger.debug(u'Response to [%s]:%s from %s: %s', self.host, self.port,
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self.actor_urn, log.indent(self.terminator.join(response)))
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self.send_lines(response)
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def on_idle(self, subsystem):
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self.dispatcher.handle_idle(subsystem)
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def close(self):
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self.stop()
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