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supysonic/lastfm.py
2014-03-16 18:51:19 +01:00

96 lines
3.0 KiB
Python

# coding: utf-8
# This file is part of Supysonic.
#
# Supysonic is a Python implementation of the Subsonic server API.
# Copyright (C) 2013 Alban 'spl0k' Féron
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import requests, hashlib
import config
class LastFm:
def __init__(self, user, logger):
self.__user = user
self.__api_key = config.get('lastfm', 'api_key')
self.__api_secret = config.get('lastfm', 'secret')
self.__enabled = self.__api_key is not None and self.__api_secret is not None
self.__logger = logger
def link_account(self, token):
if not self.__enabled:
return False, 'No API key set'
res = self.__api_request(False, method = 'auth.getSession', token = token)
if 'error' in res:
return False, 'Error %i: %s' % (res['error'], res['message'])
else:
self.__user.lastfm_session = res['session']['key']
self.__user.lastfm_status = True
return True, 'OK'
def unlink_account(self):
self.__user.lastfm_session = None
self.__user.lastfm_status = True
def now_playing(self, track):
if not self.__enabled:
return
res = self.__api_request(True, method = 'track.updateNowPlaying', artist = track.album.artist.name, track = track.title, album = track.album.name,
trackNumber = track.number, duration = track.duration)
def scrobble(self, track, ts):
if not self.__enabled:
return
res = self.__api_request(True, method = 'track.scrobble', artist = track.album.artist.name, track = track.title, album = track.album.name,
timestamp = ts, trackNumber = track.number, duration = track.duration)
def __api_request(self, write, **kwargs):
if not self.__enabled:
return
if write:
if not self.__user.lastfm_session or not self.__user.lastfm_status:
return
kwargs['sk'] = self.__user.lastfm_session
kwargs['api_key'] = self.__api_key
sig_str = ''
for k, v in sorted(kwargs.iteritems()):
if type(v) is unicode:
sig_str += k + v.encode('utf-8')
else:
sig_str += k + str(v)
sig = hashlib.md5(sig_str + self.__api_secret).hexdigest()
kwargs['api_sig'] = sig
kwargs['format'] = 'json'
if write:
r = requests.post('http://ws.audioscrobbler.com/2.0/', data = kwargs)
else:
r = requests.get('http://ws.audioscrobbler.com/2.0/', params = kwargs)
if 'error' in r.json:
if r.json['error'] in (9, '9'):
self.__user.lastfm_status = False
self.__logger.warn('LastFM error %i: %s' % (r.json['error'], r.json['message']))
return r.json