470 lines
18 KiB
Python
470 lines
18 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Manages getting playstate from Kodi and sending it to the PMS as well as
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subscribed Plex Companion clients.
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"""
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from logging import getLogger
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from threading import Thread
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from ..downloadutils import DownloadUtils as DU
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from .. import timing
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from .. import app
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from .. import variables as v
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from .. import json_rpc as js
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from .. import playqueue as PQ
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###############################################################################
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LOG = getLogger('PLEX.subscribers')
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###############################################################################
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# What is Companion controllable?
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CONTROLLABLE = {
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v.PLEX_PLAYLIST_TYPE_VIDEO: 'playPause,stop,volume,shuffle,audioStream,'
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'subtitleStream,seekTo,skipPrevious,skipNext,'
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'stepBack,stepForward',
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v.PLEX_PLAYLIST_TYPE_AUDIO: 'playPause,stop,volume,shuffle,repeat,seekTo,'
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'skipPrevious,skipNext,stepBack,stepForward',
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v.PLEX_PLAYLIST_TYPE_PHOTO: 'playPause,stop,skipPrevious,skipNext'
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}
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STREAM_DETAILS = {
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'video': 'currentvideostream',
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'audio': 'currentaudiostream',
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'subtitle': 'currentsubtitle'
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}
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XML = ('%s<MediaContainer commandID="{command_id}" location="{location}">\n'
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' <Timeline {%s}/>\n'
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' <Timeline {%s}/>\n'
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' <Timeline {%s}/>\n'
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'</MediaContainer>\n') % (v.XML_HEADER,
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v.PLEX_PLAYLIST_TYPE_VIDEO,
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v.PLEX_PLAYLIST_TYPE_AUDIO,
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v.PLEX_PLAYLIST_TYPE_PHOTO)
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# Headers are different for Plex Companion - use these for PMS notifications
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HEADERS_PMS = {
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'Connection': 'keep-alive',
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'Accept': 'text/plain, */*; q=0.01',
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'Accept-Language': 'en',
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'Accept-Encoding': 'gzip, deflate',
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'User-Agent': '%s %s (%s)' % (v.ADDON_NAME, v.ADDON_VERSION, v.DEVICE)
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}
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def params_pms():
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"""
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Returns the url parameters for communicating with the PMS
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"""
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return {
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'X-Plex-Client-Identifier': v.PKC_MACHINE_IDENTIFIER,
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'X-Plex-Device': v.DEVICE,
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'X-Plex-Device-Name': v.DEVICENAME,
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'X-Plex-Model': v.MODEL,
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'X-Plex-Platform': v.PLATFORM,
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'X-Plex-Platform-Version': v.PLATFORM_VERSION,
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'X-Plex-Product': v.ADDON_NAME,
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'X-Plex-Version': v.ADDON_VERSION,
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}
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def headers_companion_client():
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"""
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Headers are different for Plex Companion - use these for a Plex Companion
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client
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"""
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return {
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'Content-Type': 'application/xml',
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'Connection': 'Keep-Alive',
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'X-Plex-Client-Identifier': v.PKC_MACHINE_IDENTIFIER,
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'X-Plex-Device-Name': v.DEVICENAME,
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'X-Plex-Platform': v.PLATFORM,
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'X-Plex-Platform-Version': v.PLATFORM_VERSION,
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'X-Plex-Product': v.ADDON_NAME,
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'X-Plex-Version': v.ADDON_VERSION,
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'Accept-Encoding': 'gzip, deflate',
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'Accept-Language': 'en,*'
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}
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def update_player_info(playerid):
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"""
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Updates all player info for playerid [int] in state.py.
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"""
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app.PLAYSTATE.player_states[playerid].update(js.get_player_props(playerid))
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app.PLAYSTATE.player_states[playerid]['volume'] = js.get_volume()
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app.PLAYSTATE.player_states[playerid]['muted'] = js.get_muted()
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class SubscriptionMgr(object):
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"""
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Manages Plex companion subscriptions
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"""
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def __init__(self, request_mgr, player):
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self.serverlist = []
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self.subscribers = {}
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self.info = {}
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self.server = ""
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self.protocol = "http"
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self.port = ""
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self.isplaying = False
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self.location = 'navigation'
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# In order to be able to signal a stop at the end
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self.last_params = {}
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self.lastplayers = {}
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# In order to signal a stop to Plex Web ONCE on playback stop
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self.stop_sent_to_web = True
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self.request_mgr = request_mgr
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def _server_by_host(self, host):
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if len(self.serverlist) == 1:
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return self.serverlist[0]
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for server in self.serverlist:
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if (server.get('serverName') in host or
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server.get('server') in host):
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return server
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return {}
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@staticmethod
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def _get_correct_position(info, playqueue):
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"""
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Kodi tells us the PLAYLIST position, not PLAYQUEUE position, if the
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user initiated playback of a playlist
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"""
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if playqueue.kodi_playlist_playback:
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position = 0
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else:
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position = info['position'] or 0
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return position
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def msg(self, players):
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"""
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Returns a timeline xml as str
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(xml containing video, audio, photo player state)
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"""
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self.isplaying = False
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self.location = 'navigation'
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answ = str(XML)
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timelines = {
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v.PLEX_PLAYLIST_TYPE_VIDEO: None,
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v.PLEX_PLAYLIST_TYPE_AUDIO: None,
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v.PLEX_PLAYLIST_TYPE_PHOTO: None
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}
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for typus in timelines:
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if players.get(v.KODI_PLAYLIST_TYPE_FROM_PLEX_PLAYLIST_TYPE[typus]) is None:
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timeline = {
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'controllable': CONTROLLABLE[typus],
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'type': typus,
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'state': 'stopped'
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}
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else:
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timeline = self._timeline_dict(players[
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v.KODI_PLAYLIST_TYPE_FROM_PLEX_PLAYLIST_TYPE[typus]],
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typus)
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timelines[typus] = self._dict_to_xml(timeline)
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timelines.update({'command_id': '{command_id}',
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'location': self.location})
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return answ.format(**timelines)
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@staticmethod
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def _dict_to_xml(dictionary):
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"""
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Returns the string 'key1="value1" key2="value2" ...' for dictionary
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"""
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answ = ''
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for key, value in dictionary.items():
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answ += '%s="%s" ' % (key, value)
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return answ
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def _timeline_dict(self, player, ptype):
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with app.APP.lock_playqueues:
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playerid = player['playerid']
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info = app.PLAYSTATE.player_states[playerid]
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playqueue = PQ.PLAYQUEUES[playerid]
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position = self._get_correct_position(info, playqueue)
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try:
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item = playqueue.items[position]
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except IndexError:
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# E.g. for direct path playback for single item
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return {
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'controllable': CONTROLLABLE[ptype],
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'type': ptype,
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'state': 'stopped'
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}
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self.isplaying = True
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self.stop_sent_to_web = False
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if ptype in (v.PLEX_PLAYLIST_TYPE_VIDEO,
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v.PLEX_PLAYLIST_TYPE_PHOTO):
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self.location = 'fullScreenVideo'
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pbmc_server = app.CONN.server
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if pbmc_server:
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(self.protocol, self.server, self.port) = pbmc_server.split(':')
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self.server = self.server.replace('/', '')
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status = 'paused' if int(info['speed']) == 0 else 'playing'
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duration = timing.kodi_time_to_millis(info['totaltime'])
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shuffle = '1' if info['shuffled'] else '0'
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mute = '1' if info['muted'] is True else '0'
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answ = {
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'controllable': CONTROLLABLE[ptype],
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'protocol': self.protocol,
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'address': self.server,
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'port': self.port,
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'machineIdentifier': app.CONN.machine_identifier,
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'state': status,
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'type': ptype,
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'itemType': ptype,
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'time': timing.kodi_time_to_millis(info['time']),
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'duration': duration,
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'seekRange': '0-%s' % duration,
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'shuffle': shuffle,
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'repeat': v.PLEX_REPEAT_FROM_KODI_REPEAT[info['repeat']],
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'volume': info['volume'],
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'mute': mute,
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'mediaIndex': 0, # Still to implement from here
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'partIndex': 0,
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'partCount': 1,
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'providerIdentifier': 'com.plexapp.plugins.library',
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}
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# Get the plex id from the PKC playqueue not info, as Kodi jumps to
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# next playqueue element way BEFORE kodi monitor onplayback is
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# called
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if item.plex_id:
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answ['key'] = '/library/metadata/%s' % item.plex_id
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answ['ratingKey'] = item.plex_id
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# PlayQueue stuff
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if info['container_key']:
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answ['containerKey'] = info['container_key']
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if (info['container_key'] is not None and
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info['container_key'].startswith('/playQueues')):
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answ['playQueueID'] = playqueue.id
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answ['playQueueVersion'] = playqueue.version
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answ['playQueueItemID'] = item.id
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if playqueue.items[position].guid:
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answ['guid'] = item.guid
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# Temp. token set?
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if app.CONN.plex_transient_token:
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answ['token'] = app.CONN.plex_transient_token
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elif playqueue.plex_transient_token:
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answ['token'] = playqueue.plex_transient_token
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# Process audio and subtitle streams
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if ptype == v.PLEX_PLAYLIST_TYPE_VIDEO:
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answ['videoStreamID'] = str(item.current_plex_video_stream)
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answ['audioStreamID'] = str(item.current_plex_audio_stream)
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# Mind the zero - meaning subs are deactivated
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answ['subtitleStreamID'] = str(item.current_plex_sub_stream or 0)
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return answ
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def signal_stop(self):
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"""
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Externally called on PKC shutdown to ensure that PKC signals a stop to
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the PMS. Otherwise, PKC might be stuck at "currently playing"
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"""
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LOG.info('Signaling a complete stop to PMS')
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# To avoid RuntimeError, don't use self.lastplayers
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for playerid in (0, 1, 2):
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self.last_params['state'] = 'stopped'
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self._send_pms_notification(playerid,
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self.last_params,
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timeout=0.0001)
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def update_command_id(self, uuid, command_id):
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"""
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Updates the Plex Companien client with the machine identifier uuid with
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command_id
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"""
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with app.APP.lock_subscriber:
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if command_id and self.subscribers.get(uuid):
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self.subscribers[uuid].command_id = int(command_id)
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def _playqueue_init_done(self, players):
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"""
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update_player_info() can result in values BEFORE kodi monitor is called.
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Hence we'd have a missmatch between the state.PLAYER_STATES and our
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playqueues.
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"""
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for player in list(players.values()):
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info = app.PLAYSTATE.player_states[player['playerid']]
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playqueue = PQ.PLAYQUEUES[player['playerid']]
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position = self._get_correct_position(info, playqueue)
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try:
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item = playqueue.items[position]
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except IndexError:
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# E.g. for direct path playback for single item
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return False
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if item.plex_id != info['plex_id']:
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# Kodi playqueue already progressed; need to wait until
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# everything is loaded
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return False
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return True
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def notify(self):
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"""
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Causes PKC to tell the PMS and Plex Companion players to receive a
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notification what's being played.
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"""
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with app.APP.lock_subscriber:
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self._cleanup()
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# Get all the active/playing Kodi players (video, audio, pictures)
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players = js.get_players()
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# Update the PKC info with what's playing on the Kodi side
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for player in list(players.values()):
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update_player_info(player['playerid'])
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# Check whether we can use the CURRENT info or whether PKC is still
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# initializing
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if self._playqueue_init_done(players) is False:
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LOG.debug('PKC playqueue is still initializing - skip update')
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return
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self._notify_server(players)
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if self.subscribers:
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msg = self.msg(players)
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for subscriber in list(self.subscribers.values()):
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subscriber.send_update(msg)
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self.lastplayers = players
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def _notify_server(self, players):
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for typus, player in players.items():
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self._send_pms_notification(
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player['playerid'], self._get_pms_params(player['playerid']))
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try:
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del self.lastplayers[typus]
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except KeyError:
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pass
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# Process the players we have left (to signal a stop)
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for player in list(self.lastplayers.values()):
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self.last_params['state'] = 'stopped'
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self._send_pms_notification(player['playerid'], self.last_params)
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def _get_pms_params(self, playerid):
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info = app.PLAYSTATE.player_states[playerid]
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playqueue = PQ.PLAYQUEUES[playerid]
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position = self._get_correct_position(info, playqueue)
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try:
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item = playqueue.items[position]
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except IndexError:
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return self.last_params
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status = 'paused' if int(info['speed']) == 0 else 'playing'
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params = {
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'state': status,
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'ratingKey': item.plex_id,
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'key': '/library/metadata/%s' % item.plex_id,
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'time': timing.kodi_time_to_millis(info['time']),
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'duration': timing.kodi_time_to_millis(info['totaltime'])
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}
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if info['container_key'] is not None:
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# params['containerKey'] = info['container_key']
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if info['container_key'].startswith('/playQueues/'):
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# params['playQueueVersion'] = playqueue.version
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# params['playQueueID'] = playqueue.id
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params['playQueueItemID'] = item.id
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self.last_params = params
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return params
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def _send_pms_notification(self, playerid, params, timeout=None):
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"""
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Pass a really low timeout in seconds if shutting down Kodi and we don't
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need the PMS' response
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"""
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serv = self._server_by_host(self.server)
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playqueue = PQ.PLAYQUEUES[playerid]
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xargs = params_pms()
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xargs.update(params)
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if app.CONN.plex_transient_token:
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xargs['X-Plex-Token'] = app.CONN.plex_transient_token
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elif playqueue.plex_transient_token:
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xargs['X-Plex-Token'] = playqueue.plex_transient_token
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elif app.ACCOUNT.pms_token:
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xargs['X-Plex-Token'] = app.ACCOUNT.pms_token
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url = '%s://%s:%s/:/timeline' % (serv.get('protocol', 'http'),
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serv.get('server', 'localhost'),
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serv.get('port', '32400'))
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DU().downloadUrl(url,
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authenticate=False,
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parameters=xargs,
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headerOverride=HEADERS_PMS,
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timeout=timeout)
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LOG.debug("Sent server notification with parameters: %s to %s",
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xargs, url)
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def add_subscriber(self, protocol, host, port, uuid, command_id):
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"""
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Adds a new Plex Companion subscriber to PKC.
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"""
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subscriber = Subscriber(protocol,
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host,
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port,
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uuid,
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command_id,
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self,
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self.request_mgr)
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with app.APP.lock_subscriber:
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self.subscribers[subscriber.uuid] = subscriber
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return subscriber
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def remove_subscriber(self, uuid):
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"""
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Removes a connected Plex Companion subscriber with machine identifier
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uuid from PKC notifications.
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(Calls the cleanup() method of the subscriber)
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"""
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with app.APP.lock_subscriber:
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for subscriber in list(self.subscribers.values()):
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if subscriber.uuid == uuid or subscriber.host == uuid:
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subscriber.cleanup()
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del self.subscribers[subscriber.uuid]
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def _cleanup(self):
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for subscriber in list(self.subscribers.values()):
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if subscriber.age > 30:
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subscriber.cleanup()
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del self.subscribers[subscriber.uuid]
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class Subscriber(object):
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"""
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Plex Companion subscribing device
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"""
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def __init__(self, protocol, host, port, uuid, command_id, sub_mgr,
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request_mgr):
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self.protocol = protocol or "http"
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self.host = host
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self.port = port or 32400
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self.uuid = uuid or host
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self.command_id = int(command_id) or 0
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self.age = 0
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self.sub_mgr = sub_mgr
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self.request_mgr = request_mgr
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def __eq__(self, other):
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return self.uuid == other.uuid
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def cleanup(self):
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"""
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Closes the connection to the Plex Companion client
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"""
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self.request_mgr.closeConnection(self.protocol, self.host, self.port)
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def send_update(self, msg):
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"""
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Sends msg to the Plex Companion client (via .../:/timeline)
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"""
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self.age += 1
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msg = msg.format(command_id=self.command_id)
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LOG.debug("sending xml to subscriber uuid=%s,commandID=%i:\n%s",
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self.uuid, self.command_id, msg)
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url = '%s://%s:%s/:/timeline' % (self.protocol, self.host, self.port)
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thread = Thread(target=self._threaded_send, args=(url, msg))
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thread.start()
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def _threaded_send(self, url, msg):
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"""
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Threaded POST request, because they stall due to response missing
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the Content-Length header :-(
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"""
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response = DU().downloadUrl(url,
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action_type="POST",
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postBody=msg,
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authenticate=False,
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headerOverride=headers_companion_client())
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if response in (False, None, 401):
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self.sub_mgr.remove_subscriber(self.uuid)
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