270 lines
9.7 KiB
Python
270 lines
9.7 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from logging import getLogger
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from json import loads
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from threading import Thread
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from ssl import CERT_NONE
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from xbmc import sleep
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from . import websocket, utils, companion, state, variables as v
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###############################################################################
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LOG = getLogger('PLEX.websocket_client')
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###############################################################################
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class WebSocket(Thread):
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opcode_data = (websocket.ABNF.OPCODE_TEXT, websocket.ABNF.OPCODE_BINARY)
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def __init__(self):
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self.ws = None
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super(WebSocket, self).__init__()
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def process(self, opcode, message):
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raise NotImplementedError
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def receive(self, ws):
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# Not connected yet
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if ws is None:
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raise websocket.WebSocketConnectionClosedException
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frame = ws.recv_frame()
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if not frame:
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raise websocket.WebSocketException("Not a valid frame %s" % frame)
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elif frame.opcode in self.opcode_data:
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return frame.opcode, frame.data
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elif frame.opcode == websocket.ABNF.OPCODE_CLOSE:
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ws.send_close()
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return frame.opcode, None
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elif frame.opcode == websocket.ABNF.OPCODE_PING:
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ws.pong("Hi!")
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return None, None
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def getUri(self):
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raise NotImplementedError
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def run(self):
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LOG.info("----===## Starting %s ##===----", self.__class__.__name__)
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counter = 0
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stopped = self.stopped
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suspended = self.suspended
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while not stopped():
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# In the event the server goes offline
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while suspended():
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# Set in service.py
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if self.ws is not None:
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self.ws.close()
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self.ws = None
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if stopped():
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# Abort was requested while waiting. We should exit
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LOG.info("##===---- %s Stopped ----===##",
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self.__class__.__name__)
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return
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sleep(1000)
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try:
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self.process(*self.receive(self.ws))
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except websocket.WebSocketTimeoutException:
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# No worries if read timed out
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pass
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except websocket.WebSocketConnectionClosedException:
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LOG.info("%s: connection closed, (re)connecting",
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self.__class__.__name__)
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uri, sslopt = self.getUri()
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try:
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# Low timeout - let's us shut this thread down!
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self.ws = websocket.create_connection(
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uri,
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timeout=1,
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sslopt=sslopt,
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enable_multithread=True)
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except IOError:
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# Server is probably offline
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LOG.info("%s: Error connecting", self.__class__.__name__)
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self.ws = None
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counter += 1
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if counter >= 10:
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LOG.info('%s: Repeated IOError detected. Stopping now',
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self.__class__.__name__)
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break
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sleep(1000)
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except websocket.WebSocketTimeoutException:
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LOG.info("%s: Timeout while connecting, trying again",
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self.__class__.__name__)
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self.ws = None
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sleep(1000)
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except websocket.WebSocketException as e:
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LOG.info('%s: WebSocketException: %s',
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self.__class__.__name__, e)
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if ('Handshake Status 401' in e.args or
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'Handshake Status 403' in e.args):
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counter += 1
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if counter >= 5:
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LOG.info('%s: Error in handshake detected. '
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'Stopping now', self.__class__.__name__)
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break
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self.ws = None
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sleep(1000)
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except Exception as e:
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LOG.error('%s: Unknown exception encountered when '
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'connecting: %s', self.__class__.__name__, e)
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import traceback
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LOG.error("%s: Traceback:\n%s",
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self.__class__.__name__, traceback.format_exc())
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self.ws = None
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sleep(1000)
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else:
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counter = 0
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except Exception as e:
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LOG.error("%s: Unknown exception encountered: %s",
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self.__class__.__name__, e)
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import traceback
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LOG.error("%s: Traceback:\n%s",
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self.__class__.__name__, traceback.format_exc())
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if self.ws is not None:
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self.ws.close()
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self.ws = None
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# Close websocket connection on shutdown
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if self.ws is not None:
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self.ws.close()
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LOG.info("##===---- %s Stopped ----===##", self.__class__.__name__)
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@utils.thread_methods(add_suspends=['SUSPEND_LIBRARY_THREAD',
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'BACKGROUND_SYNC_DISABLED'])
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class PMS_Websocket(WebSocket):
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"""
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Websocket connection with the PMS for Plex Companion
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"""
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def getUri(self):
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server = utils.window('pms_server')
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# Get the appropriate prefix for the websocket
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if server.startswith('https'):
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server = "wss%s" % server[5:]
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else:
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server = "ws%s" % server[4:]
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uri = "%s/:/websockets/notifications" % server
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# Need to use plex.tv token, if any. NOT user token
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if state.PLEX_TOKEN:
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uri += '?X-Plex-Token=%s' % state.PLEX_TOKEN
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sslopt = {}
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if utils.settings('sslverify') == "false":
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sslopt["cert_reqs"] = CERT_NONE
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LOG.debug("%s: Uri: %s, sslopt: %s",
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self.__class__.__name__, uri, sslopt)
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return uri, sslopt
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def process(self, opcode, message):
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if opcode not in self.opcode_data:
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return
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try:
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message = loads(message)
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except ValueError:
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LOG.error('%s: Error decoding message from websocket',
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self.__class__.__name__)
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LOG.error(message)
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return
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try:
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message = message['NotificationContainer']
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except KeyError:
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LOG.error('%s: Could not parse PMS message: %s',
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self.__class__.__name__, message)
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return
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# Triage
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typus = message.get('type')
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if typus is None:
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LOG.error('%s: No message type, dropping message: %s',
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self.__class__.__name__, message)
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return
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LOG.debug('%s: Received message from PMS server: %s',
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self.__class__.__name__, message)
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# Drop everything we're not interested in
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if typus not in ('playing', 'timeline', 'activity'):
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return
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elif typus == 'activity' and state.DB_SCAN is True:
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# Only add to processing if PKC is NOT doing a lib scan (and thus
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# possibly causing these reprocessing messages en mass)
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LOG.debug('%s: Dropping message as PKC is currently synching',
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self.__class__.__name__)
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else:
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# Put PMS message on queue and let libsync take care of it
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state.WEBSOCKET_QUEUE.put(message)
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class Alexa_Websocket(WebSocket):
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"""
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Websocket connection to talk to Amazon Alexa.
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Can't use utils.thread_methods!
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"""
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thread_stopped = False
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thread_suspended = False
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def getUri(self):
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uri = ('wss://pubsub.plex.tv/sub/websockets/%s/%s?X-Plex-Token=%s'
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% (state.PLEX_USER_ID,
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v.PKC_MACHINE_IDENTIFIER,
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state.PLEX_TOKEN))
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sslopt = {}
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LOG.debug("%s: Uri: %s, sslopt: %s",
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self.__class__.__name__, uri, sslopt)
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return uri, sslopt
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def process(self, opcode, message):
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if opcode not in self.opcode_data:
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return
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LOG.debug('%s: Received the following message from Alexa:',
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self.__class__.__name__)
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LOG.debug('%s: %s', self.__class__.__name__, message)
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try:
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message = utils.defused_etree.fromstring(message)
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except Exception as ex:
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LOG.error('%s: Error decoding message from Alexa: %s',
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self.__class__.__name__, ex)
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return
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try:
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if message.attrib['command'] == 'processRemoteControlCommand':
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message = message[0]
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else:
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LOG.error('%s: Unknown Alexa message received',
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self.__class__.__name__)
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return
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except:
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LOG.error('%s: Could not parse Alexa message',
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self.__class__.__name__)
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return
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companion.process_command(message.attrib['path'][1:], message.attrib)
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# Path in utils.thread_methods
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def stop(self):
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self.thread_stopped = True
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def suspend(self):
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self.thread_suspended = True
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def resume(self):
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self.thread_suspended = False
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def stopped(self):
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if self.thread_stopped is True:
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return True
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if state.STOP_PKC:
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return True
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return False
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# The culprit
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def suspended(self):
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"""
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Overwrite method since we need to check for plex token
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"""
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if self.thread_suspended is True:
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return True
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if not state.PLEX_TOKEN:
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return True
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if state.RESTRICTED_USER:
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return True
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return False
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