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from plugin.core.helpers.variable import to_integer |
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from plugin.core.message import InterfaceMessages |
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from plugin.managers.action import ActionManager |
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from plugin.managers.session.base import UpdateSession |
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from plugin.managers.session.s_websocket import WSessionManager |
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from plugin.scrobbler.core.constants import IGNORED_EVENTS |
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from plugin.scrobbler.core.engine import SessionEngine |
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from plugin.scrobbler.methods.core.base import Base |
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from datetime import datetime, timedelta |
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from plex import Plex |
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from plex_activity import Activity |
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import logging |
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log = logging.getLogger(__name__) |
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class WebSocket(Base): |
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name = 'websocket' |
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def __init__(self): |
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Activity.on('websocket.playing', self.on_playing) |
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self.engine = SessionEngine() |
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def on_playing(self, info): |
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if InterfaceMessages.critical: |
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return |
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# Create or retrieve existing session |
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session = WSessionManager.get.or_create(info, fetch=True) |
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# Validate session |
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if session.updated_at is None or (datetime.utcnow() - session.updated_at) > timedelta(minutes=5): |
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log.info('Updating session, last update was over 5 minutes ago') |
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WSessionManager.update(session, info, fetch=True) |
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return |
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if session.duration is None or session.view_offset is None: |
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# Update session |
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WSessionManager.update(session, info, fetch=lambda s, i: ( |
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s.rating_key != to_integer(i.get('ratingKey')) or |
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s.duration is None |
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)) |
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return |
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# Parse `info` to events |
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events = self.to_events(session, info) |
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if not events: |
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return |
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# Check for changed media |
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media_changed = session.rating_key != to_integer(info.get('ratingKey')) |
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# Parse `events` |
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actions = self.engine.process(session, events) |
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for action, payload in actions: |
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# Build request for the event |
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request = self.build_request( |
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session, |
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part=payload.get('part', 1), |
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rating_key=payload.get('rating_key'), |
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view_offset=payload.get('view_offset') |
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) |
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if not request: |
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log.info('No request returned for action %r (payload: %r)', action, payload) |
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continue |
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# Queue request to be sent |
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ActionManager.queue('/'.join(['scrobble', action]), request, session) |
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# Update session |
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WSessionManager.update(session, info, fetch=media_changed) |
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@classmethod |
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def to_events(cls, session, info): |
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# Validate `state` |
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state = info.get('state') |
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if not state: |
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log.warn('Event has an invalid state %r', state) |
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return [] |
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if state in IGNORED_EVENTS: |
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log.debug('Ignored "%s" event: %r', state, info) |
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return [] |
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# Check for session `view_offset` jump |
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if cls.session_jumped(session, info.get('viewOffset')): |
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return [] |
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# Retrieve event parameters |
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view_offset = to_integer(info.get('viewOffset')) |
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# Calculate current part number |
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# TODO handle null values from session? |
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part, _ = UpdateSession.get_part(session.duration, view_offset, session.part_count) |
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# Build event |
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return [ |
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(state, { |
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'part': part, |
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'rating_key': to_integer(info.get('ratingKey')), |
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'view_offset': view_offset |
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}) |
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] |
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@classmethod |
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def test(cls): |
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if Plex['status'].sessions() is None: |
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log.info("Error while retrieving sessions, assuming WebSocket method isn't available") |
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return False |
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detail = Plex.detail() |
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if detail is None: |
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log.info('Error while retrieving server info for testing') |
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return False |
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if not detail.multiuser: |
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log.info("Server info indicates multi-user support isn't available, WebSocket method not available") |
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return False |
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return True |
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