core/homeassistant/components/media_player/plex.py

360 lines
12 KiB
Python

"""
Support to interface with the Plex API.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/media_player.plex/
"""
import json
import logging
import os
from datetime import timedelta
from urllib.parse import urlparse
import homeassistant.util as util
from homeassistant.components.media_player import (
MEDIA_TYPE_TVSHOW, MEDIA_TYPE_VIDEO, MEDIA_TYPE_MUSIC, SUPPORT_NEXT_TRACK,
SUPPORT_PREVIOUS_TRACK, SUPPORT_PAUSE, SUPPORT_STOP, SUPPORT_VOLUME_SET,
MediaPlayerDevice)
from homeassistant.const import (
DEVICE_DEFAULT_NAME, STATE_IDLE, STATE_OFF, STATE_PAUSED, STATE_PLAYING,
STATE_UNKNOWN)
from homeassistant.loader import get_component
from homeassistant.helpers.event import (track_utc_time_change)
REQUIREMENTS = ['plexapi==2.0.2']
MIN_TIME_BETWEEN_SCANS = timedelta(seconds=10)
MIN_TIME_BETWEEN_FORCED_SCANS = timedelta(seconds=1)
PLEX_CONFIG_FILE = 'plex.conf'
# Map ip to request id for configuring
_CONFIGURING = {}
_LOGGER = logging.getLogger(__name__)
SUPPORT_PLEX = SUPPORT_PAUSE | SUPPORT_PREVIOUS_TRACK | SUPPORT_NEXT_TRACK | \
SUPPORT_STOP | SUPPORT_VOLUME_SET
def config_from_file(filename, config=None):
"""Small configuration file management function."""
if config:
# We're writing configuration
try:
with open(filename, 'w') as fdesc:
fdesc.write(json.dumps(config))
except IOError as error:
_LOGGER.error('Saving config file failed: %s', error)
return False
return True
else:
# We're reading config
if os.path.isfile(filename):
try:
with open(filename, 'r') as fdesc:
return json.loads(fdesc.read())
except IOError as error:
_LOGGER.error('Reading config file failed: %s', error)
# This won't work yet
return False
else:
return {}
def setup_platform(hass, config, add_devices_callback, discovery_info=None):
"""Setup the Plex platform."""
config = config_from_file(hass.config.path(PLEX_CONFIG_FILE))
if len(config):
# Setup a configured PlexServer
host, token = config.popitem()
token = token['token']
# Via discovery
elif discovery_info is not None:
# Parse discovery data
host = urlparse(discovery_info[1]).netloc
_LOGGER.info('Discovered PLEX server: %s', host)
if host in _CONFIGURING:
return
token = None
else:
return
setup_plexserver(host, token, hass, add_devices_callback)
def setup_plexserver(host, token, hass, add_devices_callback):
"""Setup a plexserver based on host parameter."""
import plexapi.server
import plexapi.exceptions
try:
plexserver = plexapi.server.PlexServer('http://%s' % host, token)
except (plexapi.exceptions.BadRequest,
plexapi.exceptions.Unauthorized,
plexapi.exceptions.NotFound) as error:
_LOGGER.info(error)
# No token or wrong token
request_configuration(host, hass, add_devices_callback)
return
# If we came here and configuring this host, mark as done
if host in _CONFIGURING:
request_id = _CONFIGURING.pop(host)
configurator = get_component('configurator')
configurator.request_done(request_id)
_LOGGER.info('Discovery configuration done!')
# Save config
if not config_from_file(
hass.config.path(PLEX_CONFIG_FILE),
{host: {'token': token}}):
_LOGGER.error('failed to save config file')
_LOGGER.info('Connected to: http://%s', host)
plex_clients = {}
plex_sessions = {}
track_utc_time_change(hass, lambda now: update_devices(), second=30)
@util.Throttle(MIN_TIME_BETWEEN_SCANS, MIN_TIME_BETWEEN_FORCED_SCANS)
def update_devices():
"""Update the devices objects."""
try:
devices = plexserver.clients()
except plexapi.exceptions.BadRequest:
_LOGGER.exception('Error listing plex devices')
return
except OSError:
_LOGGER.error(
'Could not connect to plex server at http://%s', host)
return
new_plex_clients = []
for device in devices:
# For now, let's allow all deviceClass types
if device.deviceClass in ['badClient']:
continue
if device.machineIdentifier not in plex_clients:
new_client = PlexClient(device, plex_sessions, update_devices,
update_sessions)
plex_clients[device.machineIdentifier] = new_client
new_plex_clients.append(new_client)
else:
plex_clients[device.machineIdentifier].set_device(device)
if new_plex_clients:
add_devices_callback(new_plex_clients)
@util.Throttle(MIN_TIME_BETWEEN_SCANS, MIN_TIME_BETWEEN_FORCED_SCANS)
def update_sessions():
"""Update the sessions objects."""
try:
sessions = plexserver.sessions()
except plexapi.exceptions.BadRequest:
_LOGGER.exception('Error listing plex sessions')
return
plex_sessions.clear()
for session in sessions:
plex_sessions[session.player.machineIdentifier] = session
update_devices()
update_sessions()
def request_configuration(host, hass, add_devices_callback):
"""Request configuration steps from the user."""
configurator = get_component('configurator')
# We got an error if this method is called while we are configuring
if host in _CONFIGURING:
configurator.notify_errors(
_CONFIGURING[host], 'Failed to register, please try again.')
return
def plex_configuration_callback(data):
"""The actions to do when our configuration callback is called."""
setup_plexserver(host, data.get('token'), hass, add_devices_callback)
_CONFIGURING[host] = configurator.request_config(
hass, 'Plex Media Server', plex_configuration_callback,
description=('Enter the X-Plex-Token'),
entity_picture='/static/images/logo_plex_mediaserver.png',
submit_caption='Confirm',
fields=[{'id': 'token', 'name': 'X-Plex-Token', 'type': ''}]
)
class PlexClient(MediaPlayerDevice):
"""Representation of a Plex device."""
# pylint: disable=attribute-defined-outside-init
def __init__(self, device, plex_sessions, update_devices, update_sessions):
"""Initialize the Plex device."""
from plexapi.utils import NA
self.na_type = NA
self.plex_sessions = plex_sessions
self.update_devices = update_devices
self.update_sessions = update_sessions
self.set_device(device)
def set_device(self, device):
"""Set the device property."""
self.device = device
@property
def unique_id(self):
"""Return the id of this plex client."""
return '{}.{}'.format(
self.__class__, self.device.machineIdentifier or self.device.name)
@property
def name(self):
"""Return the name of the device."""
return self.device.title or DEVICE_DEFAULT_NAME
@property
def session(self):
"""Return the session, if any."""
return self.plex_sessions.get(self.device.machineIdentifier, None)
@property
def state(self):
"""Return the state of the device."""
if self.session and self.session.player:
state = self.session.player.state
if state == 'playing':
return STATE_PLAYING
elif state == 'paused':
return STATE_PAUSED
# This is nasty. Need to find a way to determine alive
elif self.device:
return STATE_IDLE
else:
return STATE_OFF
return STATE_UNKNOWN
def update(self):
"""Get the latest details."""
self.update_devices(no_throttle=True)
self.update_sessions(no_throttle=True)
# pylint: disable=no-self-use, singleton-comparison
def _convert_na_to_none(self, value):
"""Convert PlexAPI _NA() instances to None."""
# PlexAPI will return a "__NA__" object which can be compared to
# None, but isn't actually None - this converts it to a real None
# type so that lower layers don't think it's a URL and choke on it
if value is self.na_type:
return None
else:
return value
@property
def _active_media_plexapi_type(self):
"""Get the active media type required by PlexAPI commands."""
if self.media_content_type is MEDIA_TYPE_MUSIC:
return 'music'
else:
return 'video'
@property
def media_content_id(self):
"""Content ID of current playing media."""
if self.session is not None:
return self._convert_na_to_none(self.session.ratingKey)
@property
def media_content_type(self):
"""Content type of current playing media."""
if self.session is None:
return None
media_type = self.session.type
if media_type == 'episode':
return MEDIA_TYPE_TVSHOW
elif media_type == 'movie':
return MEDIA_TYPE_VIDEO
elif media_type == 'track':
return MEDIA_TYPE_MUSIC
return None
@property
def media_duration(self):
"""Duration of current playing media in seconds."""
if self.session is not None:
return self._convert_na_to_none(self.session.duration)
@property
def media_image_url(self):
"""Image url of current playing media."""
if self.session is not None:
thumb_url = self._convert_na_to_none(self.session.thumbUrl)
if str(self.na_type) in thumb_url:
# Audio tracks build their thumb urls internally before passing
# back a URL with the PlexAPI _NA type already converted to a
# string and embedded into a malformed URL
thumb_url = None
return thumb_url
@property
def media_title(self):
"""Title of current playing media."""
# find a string we can use as a title
if self.session is not None:
return self._convert_na_to_none(self.session.title)
@property
def media_season(self):
"""Season of curent playing media (TV Show only)."""
from plexapi.video import Show
if isinstance(self.session, Show):
return self._convert_na_to_none(self.session.seasons()[0].index)
@property
def media_series_title(self):
"""The title of the series of current playing media (TV Show only)."""
from plexapi.video import Show
if isinstance(self.session, Show):
return self._convert_na_to_none(self.session.grandparentTitle)
@property
def media_episode(self):
"""Episode of current playing media (TV Show only)."""
from plexapi.video import Show
if isinstance(self.session, Show):
return self._convert_na_to_none(self.session.index)
@property
def supported_media_commands(self):
"""Flag of media commands that are supported."""
return SUPPORT_PLEX
def set_volume_level(self, volume):
"""Set volume level, range 0..1."""
self.device.setVolume(int(volume * 100),
self._active_media_plexapi_type)
def media_play(self):
"""Send play command."""
self.device.play(self._active_media_plexapi_type)
def media_pause(self):
"""Send pause command."""
self.device.pause(self._active_media_plexapi_type)
def media_stop(self):
"""Send stop command."""
self.device.stop(self._active_media_plexapi_type)
def media_next_track(self):
"""Send next track command."""
self.device.skipNext(self._active_media_plexapi_type)
def media_previous_track(self):
"""Send previous track command."""
self.device.skipPrevious(self._active_media_plexapi_type)