376 lines
14 KiB
Python
376 lines
14 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Syncs Plex playlists <=> Kodi playlists with 3 main components:
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kodi_playlist_monitor()
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watchdog Observer checking whether Kodi playlists are changed
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websocket(plex_id, status)
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Hit with websocket answers from our background sync
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full_sync()
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Triggers a full re-sync of playlists
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PlaylistError is thrown if anything wierd happens
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"""
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from __future__ import absolute_import, division, unicode_literals
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from logging import getLogger
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from .common import Playlist, PlaylistError, PlaylistObserver
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from . import pms, db, kodi_pl, plex_pl
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from ..watchdog import events
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from ..plex_api import API
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from .. import utils
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from .. import path_ops
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from .. import variables as v
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from .. import state
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###############################################################################
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LOG = getLogger('PLEX.playlists')
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# Safety margin for playlist filesystem operations
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FILESYSTEM_TIMEOUT = 1
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# Which playlist formates are supported by PKC?
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SUPPORTED_FILETYPES = (
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'm3u',
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# 'm3u8'
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# 'pls',
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# 'cue',
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)
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# Avoid endless loops
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IGNORE_KODI_PLAYLIST_CHANGE = list()
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###############################################################################
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def kodi_playlist_monitor():
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"""
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Monitors the Kodi playlist folder special://profile/playlist for the user.
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Will thus catch all changes on the Kodi side of things.
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Returns an watchdog Observer instance. Be sure to use
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observer.stop() (and maybe observer.join()) to shut down properly
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"""
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event_handler = PlaylistEventhandler()
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observer = PlaylistObserver(timeout=FILESYSTEM_TIMEOUT)
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observer.schedule(event_handler, v.PLAYLIST_PATH, recursive=True)
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observer.start()
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return observer
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def websocket(plex_id, status):
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"""
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Hit by librarysync to process websocket messages concerning playlists
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"""
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create = False
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with state.LOCK_PLAYLISTS:
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playlist = db.get_playlist(plex_id=plex_id)
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if playlist and status == 9:
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# Won't be able to download metadata of the deleted playlist
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if sync_plex_playlist(playlist=playlist):
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LOG.debug('Plex deletion of playlist detected: %s', playlist)
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try:
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IGNORE_KODI_PLAYLIST_CHANGE.append(plex_id)
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kodi_pl.delete(playlist)
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except PlaylistError:
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IGNORE_KODI_PLAYLIST_CHANGE.remove(plex_id)
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return
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xml = pms.metadata(plex_id)
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if xml is None:
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LOG.debug('Could not download playlist %s, probably deleted',
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plex_id)
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return
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if not sync_plex_playlist(xml=xml[0]):
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return
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api = API(xml[0])
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try:
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if playlist:
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if api.updated_at() == playlist.plex_updatedat:
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LOG.debug('Playlist with id %s already synced: %s',
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plex_id, playlist)
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else:
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LOG.debug('Change of Plex playlist detected: %s',
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playlist)
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IGNORE_KODI_PLAYLIST_CHANGE.append(plex_id)
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kodi_pl.delete(playlist)
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create = True
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elif not playlist and not status == 9:
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LOG.debug('Creation of new Plex playlist detected: %s',
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plex_id)
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create = True
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# To the actual work
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if create:
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IGNORE_KODI_PLAYLIST_CHANGE.append(plex_id)
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kodi_pl.create(plex_id)
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except PlaylistError:
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IGNORE_KODI_PLAYLIST_CHANGE.remove(plex_id)
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def full_sync():
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"""
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Full sync of playlists between Kodi and Plex. Returns True is successful,
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False otherwise
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"""
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if not state.SYNC_PLAYLISTS:
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LOG.debug('Not syncing playlists')
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return True
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LOG.info('Starting playlist full sync')
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with state.LOCK_PLAYLISTS:
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return _full_sync()
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def _full_sync():
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"""
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Need to lock because we're messing with playlists
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"""
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# Get all Plex playlists
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xml = pms.all_playlists()
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if xml is None:
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return False
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# For each playlist, check Plex database to see whether we already synced
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# before. If yes, make sure that hashes are identical. If not, sync it.
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old_plex_ids = db.plex_playlist_ids()
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for xml_playlist in xml:
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api = API(xml_playlist)
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try:
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old_plex_ids.remove(api.plex_id())
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except ValueError:
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pass
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if not sync_plex_playlist(xml=xml_playlist):
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continue
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playlist = db.get_playlist(plex_id=api.plex_id())
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try:
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if not playlist:
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LOG.debug('New Plex playlist %s discovered: %s',
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api.plex_id(), api.title())
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IGNORE_KODI_PLAYLIST_CHANGE.append(api.plex_id())
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kodi_pl.create(api.plex_id())
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elif playlist.plex_updatedat != api.updated_at():
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LOG.debug('Detected changed Plex playlist %s: %s',
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api.plex_id(), api.title())
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IGNORE_KODI_PLAYLIST_CHANGE.append(api.plex_id())
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kodi_pl.delete(playlist)
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IGNORE_KODI_PLAYLIST_CHANGE.append(api.plex_id())
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kodi_pl.create(api.plex_id())
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except PlaylistError:
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LOG.info('Skipping playlist %s: %s', api.plex_id(), api.title())
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IGNORE_KODI_PLAYLIST_CHANGE.remove(api.plex_id())
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# Get rid of old Plex playlists that were deleted on the Plex side
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for plex_id in old_plex_ids:
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playlist = db.get_playlist(plex_id=plex_id)
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LOG.debug('Removing outdated Plex playlist: %s', playlist)
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try:
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IGNORE_KODI_PLAYLIST_CHANGE.append(playlist.plex_id)
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kodi_pl.delete(playlist)
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except PlaylistError:
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LOG.debug('Skipping deletion of playlist: %s', playlist)
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IGNORE_KODI_PLAYLIST_CHANGE.remove(playlist.plex_id)
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# Look at all supported Kodi playlists. Check whether they are in the DB.
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old_kodi_paths = db.kodi_playlist_paths()
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for root, _, files in path_ops.walk(v.PLAYLIST_PATH):
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for f in files:
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path = path_ops.path.join(root, f)
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try:
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old_kodi_paths.remove(path)
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except ValueError:
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pass
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if not sync_kodi_playlist(path):
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continue
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kodi_hash = utils.generate_file_md5(path)
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playlist = db.get_playlist(path=path)
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if playlist and playlist.kodi_hash == kodi_hash:
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continue
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try:
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if not playlist:
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LOG.debug('New Kodi playlist detected: %s', path)
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playlist = Playlist()
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playlist.kodi_path = path
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playlist.kodi_hash = kodi_hash
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plex_pl.create(playlist)
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else:
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LOG.debug('Changed Kodi playlist detected: %s', path)
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plex_pl.delete(playlist)
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playlist.kodi_hash = kodi_hash
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plex_pl.create(playlist)
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except PlaylistError:
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LOG.info('Skipping Kodi playlist %s', path)
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for kodi_path in old_kodi_paths:
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playlist = db.get_playlist(path=kodi_path)
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try:
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plex_pl.delete(playlist)
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except PlaylistError:
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LOG.debug('Skipping deletion of playlist: %s', playlist)
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LOG.info('Playlist full sync done')
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return True
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def sync_kodi_playlist(path):
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"""
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Returns True if we should sync this Kodi playlist with path [unicode] to
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Plex based on the playlist file name and the user settings, False otherwise
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"""
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if path.startswith(v.PLAYLIST_PATH_MIXED):
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return False
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try:
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extension = path.rsplit('.', 1)[1].lower()
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except IndexError:
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return False
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if extension not in SUPPORTED_FILETYPES:
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return False
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if not state.SYNC_SPECIFIC_KODI_PLAYLISTS:
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return True
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playlist = Playlist()
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playlist.kodi_path = path
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prefix = utils.settings('syncSpecificKodiPlaylistsPrefix').lower()
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if playlist.kodi_filename.lower().startswith(prefix):
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return True
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LOG.debug('User chose to not sync Kodi playlist %s', path)
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return False
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def sync_plex_playlist(plex_id=None, xml=None, playlist=None):
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"""
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Returns True if we should sync this specific Plex playlist due to the
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user settings (including a disabled music library), False if not.
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Pass in either the plex_id or an xml (where API(xml) will be used)
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"""
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if playlist:
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# Mainly once we DELETED a Plex playlist that we're NOT supposed
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# to sync
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name = playlist.plex_name
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typus = playlist.kodi_type
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else:
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if xml is None:
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xml = pms.metadata(plex_id)
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if xml is None:
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LOG.info('Could not get Plex metadata for playlist %s',
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plex_id)
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return False
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api = API(xml[0])
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else:
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api = API(xml)
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if api.playlist_type() == v.PLEX_TYPE_PHOTO_PLAYLIST:
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# Not supported by Kodi
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return False
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name = api.title()
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typus = v.KODI_PLAYLIST_TYPE_FROM_PLEX[api.playlist_type()]
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if not state.SYNC_SPECIFIC_PLEX_PLAYLISTS:
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return True
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if (not state.ENABLE_MUSIC and typus == v.PLEX_PLAYLIST_TYPE_AUDIO):
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LOG.debug('Not synching Plex audio playlist')
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return False
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prefix = utils.settings('syncSpecificPlexPlaylistsPrefix').lower()
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if name and name.lower().startswith(prefix):
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return True
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LOG.debug('User chose to not sync Plex playlist %s', name)
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return False
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class PlaylistEventhandler(events.FileSystemEventHandler):
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"""
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PKC eventhandler to monitor Kodi playlists safed to disk
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"""
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def dispatch(self, event):
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"""
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Dispatches events to the appropriate methods.
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:param event:
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The event object representing the file system event.
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:type event:
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:class:`FileSystemEvent`
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"""
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if not state.SYNC_PLAYLISTS:
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# Sync is deactivated
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return
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path = event.dest_path if event.event_type == events.EVENT_TYPE_MOVED \
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else event.src_path
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if not sync_kodi_playlist(path):
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return
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playlist = db.get_playlist(path=path)
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if playlist and playlist.plex_id in IGNORE_KODI_PLAYLIST_CHANGE:
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LOG.debug('Ignoring event %s for playlist %s', event, playlist)
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IGNORE_KODI_PLAYLIST_CHANGE.remove(playlist.plex_id)
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return
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_method_map = {
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events.EVENT_TYPE_MODIFIED: self.on_modified,
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events.EVENT_TYPE_MOVED: self.on_moved,
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events.EVENT_TYPE_CREATED: self.on_created,
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events.EVENT_TYPE_DELETED: self.on_deleted,
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}
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with state.LOCK_PLAYLISTS:
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_method_map[event.event_type](event)
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def on_created(self, event):
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LOG.debug('on_created: %s', event.src_path)
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old_playlist = db.get_playlist(path=event.src_path)
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kodi_hash = utils.generate_file_md5(event.src_path)
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if old_playlist and old_playlist.kodi_hash == kodi_hash:
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LOG.debug('Playlist already in DB - skipping')
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return
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elif old_playlist:
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LOG.debug('Playlist already in DB but it has been changed')
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self.on_modified(event)
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return
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playlist = Playlist()
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playlist.kodi_path = event.src_path
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playlist.kodi_hash = kodi_hash
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try:
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plex_pl.create(playlist)
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except PlaylistError:
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pass
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def on_modified(self, event):
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LOG.debug('on_modified: %s', event.src_path)
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old_playlist = db.get_playlist(path=event.src_path)
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kodi_hash = utils.generate_file_md5(event.src_path)
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if old_playlist and old_playlist.kodi_hash == kodi_hash:
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LOG.debug('Nothing modified, playlist already in DB - skipping')
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return
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new_playlist = Playlist()
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if old_playlist:
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# Retain the name! Might've come from Plex
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# (rename should fire on_moved)
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new_playlist.plex_name = old_playlist.plex_name
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plex_pl.delete(old_playlist)
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new_playlist.kodi_path = event.src_path
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new_playlist.kodi_hash = kodi_hash
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try:
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plex_pl.create(new_playlist)
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except PlaylistError:
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pass
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def on_moved(self, event):
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LOG.debug('on_moved: %s to %s', event.src_path, event.dest_path)
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kodi_hash = utils.generate_file_md5(event.dest_path)
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# First check whether we don't already have destination playlist in
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# our DB. Just in case....
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old_playlist = db.get_playlist(path=event.dest_path)
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if old_playlist:
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LOG.warning('Found target playlist already in our DB!')
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new_event = events.FileModifiedEvent(event.dest_path)
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self.on_modified(new_event)
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return
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# All good
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old_playlist = db.get_playlist(path=event.src_path)
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if not old_playlist:
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LOG.debug('Did not have source path in the DB %s', event.src_path)
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else:
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plex_pl.delete(old_playlist)
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new_playlist = Playlist()
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new_playlist.kodi_path = event.dest_path
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new_playlist.kodi_hash = kodi_hash
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try:
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plex_pl.create(new_playlist)
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except PlaylistError:
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pass
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def on_deleted(self, event):
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LOG.debug('on_deleted: %s', event.src_path)
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playlist = db.get_playlist(path=event.src_path)
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if not playlist:
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LOG.debug('Playlist not found in DB for path %s', event.src_path)
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else:
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plex_pl.delete(playlist)
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