193 lines
6.6 KiB
Python
193 lines
6.6 KiB
Python
from __future__ import unicode_literals
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import logging
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import time
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import urllib
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import pykka
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from spotify import Link, SpotifyError
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from mopidy import settings
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from mopidy.backends import base
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from mopidy.models import Track, SearchResult
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from . import translator
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logger = logging.getLogger('mopidy.backends.spotify')
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class SpotifyTrack(Track):
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"""Proxy object for unloaded Spotify tracks."""
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def __init__(self, uri=None, track=None):
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super(SpotifyTrack, self).__init__()
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if (uri and track) or (not uri and not track):
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raise AttributeError('uri or track must be provided')
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elif uri:
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self._spotify_track = Link.from_string(uri).as_track()
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elif track:
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self._spotify_track = track
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self._unloaded_track = Track(uri=uri, name='[loading...]')
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self._track = None
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@property
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def _proxy(self):
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if self._track:
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return self._track
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elif self._spotify_track.is_loaded():
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self._track = translator.to_mopidy_track(self._spotify_track)
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return self._track
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else:
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return self._unloaded_track
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def __getattribute__(self, name):
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if name.startswith('_'):
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return super(SpotifyTrack, self).__getattribute__(name)
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return self._proxy.__getattribute__(name)
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def __repr__(self):
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return self._proxy.__repr__()
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def __hash__(self):
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return hash(self._proxy.uri)
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def __eq__(self, other):
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if not isinstance(other, Track):
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return False
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return self._proxy.uri == other.uri
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def copy(self, **values):
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return self._proxy.copy(**values)
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class SpotifyLibraryProvider(base.BaseLibraryProvider):
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def find_exact(self, **query):
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return self.search(**query)
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def lookup(self, uri):
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try:
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link = Link.from_string(uri)
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if link.type() == Link.LINK_TRACK:
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return self._lookup_track(uri)
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if link.type() == Link.LINK_ALBUM:
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return self._lookup_album(uri)
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elif link.type() == Link.LINK_ARTIST:
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return self._lookup_artist(uri)
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elif link.type() == Link.LINK_PLAYLIST:
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return self._lookup_playlist(uri)
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else:
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return []
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except SpotifyError as error:
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logger.debug(u'Failed to lookup "%s": %s', uri, error)
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return []
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def _lookup_track(self, uri):
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track = Link.from_string(uri).as_track()
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self._wait_for_object_to_load(track)
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return [SpotifyTrack(track=track)]
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def _lookup_album(self, uri):
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album = Link.from_string(uri).as_album()
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album_browser = self.backend.spotify.session.browse_album(album)
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self._wait_for_object_to_load(album_browser)
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return [SpotifyTrack(track=t) for t in album_browser]
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def _lookup_artist(self, uri):
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artist = Link.from_string(uri).as_artist()
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artist_browser = self.backend.spotify.session.browse_artist(artist)
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self._wait_for_object_to_load(artist_browser)
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return [SpotifyTrack(track=t) for t in artist_browser]
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def _lookup_playlist(self, uri):
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playlist = Link.from_string(uri).as_playlist()
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self._wait_for_object_to_load(playlist)
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return [SpotifyTrack(track=t) for t in playlist]
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def _wait_for_object_to_load(
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self, spotify_obj, timeout=settings.SPOTIFY_TIMEOUT):
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# XXX Sleeping to wait for the Spotify object to load is an ugly hack,
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# but it works. We should look into other solutions for this.
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wait_until = time.time() + timeout
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while not spotify_obj.is_loaded():
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time.sleep(0.1)
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if time.time() > wait_until:
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logger.debug(
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'Timeout: Spotify object did not load in %ds', timeout)
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return
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def refresh(self, uri=None):
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pass # TODO
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def search(self, **query):
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if not query:
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return self._get_all_tracks()
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uris = query.get('uri', [])
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if uris:
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tracks = []
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for uri in uris:
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tracks += self.lookup(uri)
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if len(uris) == 1:
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uri = uris[0]
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else:
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uri = 'spotify:search'
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return SearchResult(uri=uri, tracks=tracks)
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spotify_query = self._translate_search_query(query)
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logger.debug('Spotify search query: %s' % spotify_query)
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future = pykka.ThreadingFuture()
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def callback(results, userdata=None):
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search_result = SearchResult(
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uri='spotify:search:%s' % (
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urllib.quote(results.query().encode('utf-8'))),
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albums=[
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translator.to_mopidy_album(a) for a in results.albums()],
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artists=[
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translator.to_mopidy_artist(a) for a in results.artists()],
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tracks=[
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translator.to_mopidy_track(t) for t in results.tracks()])
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future.set(search_result)
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if not self.backend.spotify.connected.wait(settings.SPOTIFY_TIMEOUT):
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logger.debug('Not connected: Spotify search cancelled')
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return []
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self.backend.spotify.session.search(
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spotify_query, callback,
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album_count=200, artist_count=200, track_count=200)
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try:
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return future.get(timeout=settings.SPOTIFY_TIMEOUT)
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except pykka.Timeout:
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logger.debug(
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'Timeout: Spotify search did not return in %ds',
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settings.SPOTIFY_TIMEOUT)
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return SearchResult(uri='spotify:search')
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def _get_all_tracks(self):
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# Since we can't search for the entire Spotify library, we return
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# all tracks in the playlists when the query is empty.
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tracks = []
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for playlist in self.backend.playlists.playlists:
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tracks += playlist.tracks
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return SearchResult(uri='spotify:search', tracks=tracks)
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def _translate_search_query(self, mopidy_query):
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spotify_query = []
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for (field, values) in mopidy_query.iteritems():
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if field == 'date':
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field = 'year'
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if not hasattr(values, '__iter__'):
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values = [values]
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for value in values:
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if field == 'any':
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spotify_query.append(value)
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elif field == 'year':
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value = int(value.split('-')[0]) # Extract year
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spotify_query.append('%s:%d' % (field, value))
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else:
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spotify_query.append('%s:"%s"' % (field, value))
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spotify_query = ' '.join(spotify_query)
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return spotify_query
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