253 lines
9.3 KiB
Python
253 lines
9.3 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
from logging import getLogger
|
|
from json import loads
|
|
from ssl import CERT_NONE
|
|
|
|
from . import backgroundthread, websocket, utils, companion, app, variables as v
|
|
|
|
###############################################################################
|
|
|
|
LOG = getLogger('PLEX.websocket_client')
|
|
|
|
###############################################################################
|
|
|
|
|
|
class WebSocket(backgroundthread.KillableThread):
|
|
opcode_data = (websocket.ABNF.OPCODE_TEXT, websocket.ABNF.OPCODE_BINARY)
|
|
|
|
def __init__(self):
|
|
self.ws = None
|
|
self.redirect_uri = None
|
|
self.sleeptime = 0.0
|
|
super(WebSocket, self).__init__()
|
|
|
|
def close_websocket(self):
|
|
if self.ws is not None:
|
|
self.ws.close()
|
|
self.ws = None
|
|
|
|
def process(self, opcode, message):
|
|
raise NotImplementedError
|
|
|
|
def receive(self, ws):
|
|
# Not connected yet
|
|
if ws is None:
|
|
raise websocket.WebSocketConnectionClosedException
|
|
|
|
frame = ws.recv_frame()
|
|
|
|
if not frame:
|
|
raise websocket.WebSocketException("Not a valid frame %s" % frame)
|
|
elif frame.opcode in self.opcode_data:
|
|
return frame.opcode, frame.data
|
|
elif frame.opcode == websocket.ABNF.OPCODE_CLOSE:
|
|
ws.send_close()
|
|
return frame.opcode, None
|
|
elif frame.opcode == websocket.ABNF.OPCODE_PING:
|
|
ws.pong("Hi!")
|
|
return None, None
|
|
|
|
def getUri(self):
|
|
raise NotImplementedError
|
|
|
|
def _sleep_cycle(self):
|
|
"""
|
|
Sleeps for 2^self.sleeptime where sleeping period will be doubled with
|
|
each unsuccessful connection attempt.
|
|
Will sleep at most 64 seconds
|
|
"""
|
|
self.sleep(2 ** self.sleeptime)
|
|
if self.sleeptime < 6:
|
|
self.sleeptime += 1.0
|
|
|
|
def run(self):
|
|
LOG.info("----===## Starting %s ##===----", self.__class__.__name__)
|
|
app.APP.register_thread(self)
|
|
try:
|
|
self._run()
|
|
finally:
|
|
self.close_websocket()
|
|
app.APP.deregister_thread(self)
|
|
LOG.info("##===---- %s Stopped ----===##", self.__class__.__name__)
|
|
|
|
def _run(self):
|
|
while not self.should_cancel():
|
|
# In the event the server goes offline
|
|
if self.should_suspend():
|
|
# Set in service.py
|
|
self.close_websocket()
|
|
if self.wait_while_suspended():
|
|
# Abort was requested while waiting. We should exit
|
|
return
|
|
try:
|
|
self.process(*self.receive(self.ws))
|
|
except websocket.WebSocketTimeoutException:
|
|
# No worries if read timed out
|
|
pass
|
|
except websocket.WebSocketConnectionClosedException:
|
|
LOG.debug("%s: connection closed, (re)connecting",
|
|
self.__class__.__name__)
|
|
uri, sslopt = self.getUri()
|
|
try:
|
|
# Low timeout - let's us shut this thread down!
|
|
self.ws = websocket.create_connection(
|
|
uri,
|
|
timeout=1,
|
|
sslopt=sslopt,
|
|
enable_multithread=True)
|
|
except IOError:
|
|
# Server is probably offline
|
|
LOG.debug("%s: IOError connecting", self.__class__.__name__)
|
|
self.ws = None
|
|
self._sleep_cycle()
|
|
except websocket.WebSocketTimeoutException:
|
|
LOG.debug("%s: WebSocketTimeoutException", self.__class__.__name__)
|
|
self.ws = None
|
|
self._sleep_cycle()
|
|
except websocket.WebsocketRedirect as e:
|
|
LOG.debug('301 redirect detected: %s', e)
|
|
self.redirect_uri = e.headers.get('location',
|
|
e.headers.get('Location'))
|
|
if self.redirect_uri:
|
|
self.redirect_uri = self.redirect_uri.decode('utf-8')
|
|
self.ws = None
|
|
self._sleep_cycle()
|
|
except websocket.WebSocketException as e:
|
|
LOG.debug('%s: WebSocketException: %s', self.__class__.__name__, e)
|
|
self.ws = None
|
|
self._sleep_cycle()
|
|
except Exception as e:
|
|
LOG.error('%s: Unknown exception encountered when '
|
|
'connecting: %s', self.__class__.__name__, e)
|
|
import traceback
|
|
LOG.error("%s: Traceback:\n%s",
|
|
self.__class__.__name__, traceback.format_exc())
|
|
self.ws = None
|
|
self._sleep_cycle()
|
|
else:
|
|
self.sleeptime = 0.0
|
|
except Exception as e:
|
|
LOG.error("%s: Unknown exception encountered: %s",
|
|
self.__class__.__name__, e)
|
|
import traceback
|
|
LOG.error("%s: Traceback:\n%s",
|
|
self.__class__.__name__, traceback.format_exc())
|
|
self.close_websocket()
|
|
|
|
|
|
class PMS_Websocket(WebSocket):
|
|
"""
|
|
Websocket connection with the PMS for Plex Companion
|
|
"""
|
|
def should_suspend(self):
|
|
"""
|
|
Returns True if the thread is suspended
|
|
"""
|
|
return self._suspended or app.SYNC.background_sync_disabled
|
|
|
|
def getUri(self):
|
|
if self.redirect_uri:
|
|
uri = self.redirect_uri
|
|
self.redirect_uri = None
|
|
else:
|
|
server = app.CONN.server
|
|
# Get the appropriate prefix for the websocket
|
|
if server.startswith('https'):
|
|
server = "wss%s" % server[5:]
|
|
else:
|
|
server = "ws%s" % server[4:]
|
|
uri = "%s/:/websockets/notifications" % server
|
|
# Need to use plex.tv token, if any. NOT user token
|
|
if app.ACCOUNT.plex_token:
|
|
uri += '?X-Plex-Token=%s' % app.ACCOUNT.plex_token
|
|
sslopt = {}
|
|
if v.KODIVERSION == 17 and utils.settings('sslverify') == "false":
|
|
sslopt["cert_reqs"] = CERT_NONE
|
|
LOG.debug("%s: Uri: %s, sslopt: %s",
|
|
self.__class__.__name__, uri, sslopt)
|
|
return uri, sslopt
|
|
|
|
def process(self, opcode, message):
|
|
if opcode not in self.opcode_data:
|
|
return
|
|
|
|
try:
|
|
message = loads(message)
|
|
except ValueError:
|
|
LOG.error('%s: Error decoding message from websocket',
|
|
self.__class__.__name__)
|
|
LOG.error(message)
|
|
return
|
|
try:
|
|
message = message['NotificationContainer']
|
|
except KeyError:
|
|
LOG.error('%s: Could not parse PMS message: %s',
|
|
self.__class__.__name__, message)
|
|
return
|
|
# Triage
|
|
typus = message.get('type')
|
|
if typus is None:
|
|
LOG.error('%s: No message type, dropping message: %s',
|
|
self.__class__.__name__, message)
|
|
return
|
|
LOG.debug('%s: Received message from PMS server: %s',
|
|
self.__class__.__name__, message)
|
|
# Drop everything we're not interested in
|
|
if typus not in ('playing', 'timeline', 'activity'):
|
|
return
|
|
else:
|
|
# Put PMS message on queue and let libsync take care of it
|
|
app.APP.websocket_queue.put(message)
|
|
|
|
|
|
class Alexa_Websocket(WebSocket):
|
|
"""
|
|
Websocket connection to talk to Amazon Alexa.
|
|
"""
|
|
def should_suspend(self):
|
|
"""
|
|
Overwrite method since we need to check for plex token
|
|
"""
|
|
return (self._suspended or
|
|
not app.ACCOUNT.plex_token or
|
|
app.ACCOUNT.restricted_user)
|
|
|
|
def getUri(self):
|
|
if self.redirect_uri:
|
|
uri = self.redirect_uri
|
|
self.redirect_uri = None
|
|
else:
|
|
uri = ('wss://pubsub.plex.tv/sub/websockets/%s/%s?X-Plex-Token=%s'
|
|
% (app.ACCOUNT.plex_user_id,
|
|
v.PKC_MACHINE_IDENTIFIER,
|
|
app.ACCOUNT.plex_token))
|
|
sslopt = {}
|
|
LOG.debug("%s: Uri: %s, sslopt: %s",
|
|
self.__class__.__name__, uri, sslopt)
|
|
return uri, sslopt
|
|
|
|
def process(self, opcode, message):
|
|
if opcode not in self.opcode_data:
|
|
return
|
|
LOG.debug('%s: Received the following message from Alexa:',
|
|
self.__class__.__name__)
|
|
LOG.debug('%s: %s', self.__class__.__name__, message)
|
|
try:
|
|
message = utils.defused_etree.fromstring(message)
|
|
except Exception as ex:
|
|
LOG.error('%s: Error decoding message from Alexa: %s',
|
|
self.__class__.__name__, ex)
|
|
return
|
|
try:
|
|
if message.attrib['command'] == 'processRemoteControlCommand':
|
|
message = message[0]
|
|
else:
|
|
LOG.error('%s: Unknown Alexa message received',
|
|
self.__class__.__name__)
|
|
return
|
|
except Exception:
|
|
LOG.error('%s: Could not parse Alexa message',
|
|
self.__class__.__name__)
|
|
return
|
|
companion.process_command(message.attrib['path'][1:], message.attrib)
|