# An improved, structured jamendo API wrapper for the N900 with cacheing
# Image / cover downloads.. and more?
+from __future__ import with_statement
import urllib, threading, os, time, simplejson, re
import logging, hashlib
+import pycurl, StringIO
_CACHEDIR = None
_COVERDIR = None
_ARTIST_FIELDS = ['id', 'name', 'image']
_ALBUM_FIELDS = ['id', 'name', 'image', 'artist_name', 'artist_id', 'license_url']
-_TRACK_FIELDS = ['id', 'name', 'image', 'artist_id', 'artist_name', 'album_name', 'album_id', 'numalbum', 'duration']
+_TRACK_FIELDS = ['id', 'name', 'album_image', 'artist_id', 'artist_name', 'album_name', 'album_id', 'numalbum', 'duration']
_RADIO_FIELDS = ['id', 'name', 'idstr', 'image']
+_TAG_FIELDS = ['id', 'name']
+
+_APILOCK = threading.Lock()
+
+def curlGET(url):
+ c = pycurl.Curl()
+ s = StringIO.StringIO()
+ c.setopt(pycurl.FOLLOWLOCATION, 1)
+ c.setopt(pycurl.URL, url)
+ c.setopt(pycurl.WRITEFUNCTION, s.write)
+ try:
+ c.perform()
+ finally:
+ c.close()
+ s.seek(0)
+ return s.read()
class LazyQuery(object):
def set_from_json(self, json):
def _set_from(self, other):
return self._set_from_impl(other, 'name', 'image', 'albums')
+ def get_data(self):
+ return {'name':self.name, 'image':self.image}
+
class Album(LazyQuery):
def __init__(self, ID, json=None):
self.ID = int(ID)
def _set_from(self, other):
return self._set_from_impl(other, 'name', 'image', 'artist_name', 'artist_id', 'license_url', 'tracks')
+ def get_data(self):
+ return {'name':self.name, 'image':self.image,
+ 'artist_name':self.artist_name,
+ 'artist_id':self.artist_id,
+ 'license_url':self.license_url}
+
class Track(LazyQuery):
def __init__(self, ID, json=None):
self.ID = int(ID)
self.name = None
- self.image = None
self.artist_id = None
self.artist_name = None
+ self.album_image = None
self.album_name = None
self.album_id = None
self.numalbum = None
def ogg_url(self):
return _OGGURL%(self.ID)
+ def get_data(self):
+ return {'name':self.name,
+ 'artist_id':self.artist_id,
+ 'artist_name':self.artist_name,
+ 'album_image':self.album_image,
+ 'album_name':self.album_name,
+ 'album_id':self.album_id,
+ 'numalbum':self.numalbum,
+ 'duration':self.duration}
+
def _needs_load(self):
return self._needs_load_impl('name', 'artist_name', 'artist_id', 'album_name', 'album_id', 'numalbum', 'duration')
def _set_from(self, other):
- return self._set_from_impl(other, 'name', 'image', 'artist_name', 'artist_id', 'album_name', 'album_id', 'numalbum', 'duration')
+ return self._set_from_impl(other, 'name', 'album_image', 'artist_name', 'artist_id', 'album_name', 'album_id', 'numalbum', 'duration')
class Radio(LazyQuery):
def __init__(self, ID, json=None):
def _set_from(self, other):
return self._set_from_impl(other, 'name', 'idstr', 'image')
+class Tag(LazyQuery):
+ def __init__(self, ID, json=None):
+ self.ID = int(ID)
+ self.name = None
+ if json:
+ self.set_from_json(json)
+
+ def _needs_load(self):
+ return self._needs_load_impl('name')
+
+ def _set_from(self, other):
+ return self._set_from_impl(other, 'name')
_artists = {} # id -> Artist()
_albums = {} # id -> Album()
# TODO: cache queries?
-class Query(object):
- rate_limit = 1.1 # seconds between queries
+class Ratelimit(object):
+ rate_limit = 1.0 # seconds between queries
last_query = time.time() - 1.5
@classmethod
- def _ratelimit(cls):
+ def ratelimit(cls):
now = time.time()
- if now - cls.last_query < cls.rate_limit:
+ if (now - cls.last_query) < cls.rate_limit:
time.sleep(cls.rate_limit - (now - cls.last_query))
- cls.last_query = now
+ cls.last_query = time.time()
+
+_ratelimit = Ratelimit.ratelimit
+class Query(object):
def __init__(self):
pass
def _geturl(self, url):
+ _ratelimit()
log.info("%s", url)
- Query._ratelimit()
try:
- f = urllib.urlopen(url)
- ret = simplejson.load(f)
- f.close()
+ ret = simplejson.loads(curlGET(url))
except Exception, e:
return None
return ret
self.cond = threading.Condition()
self.work = []
+ def _retrieve(self, url, fname):
+ BROKEN = 'http://imgjam.com/radios/default/default.100.png'
+ if url == BROKEN:
+ return None
+ f = open(fname, 'wb')
+ c = pycurl.Curl()
+ c.setopt(pycurl.FOLLOWLOCATION, 1)
+ c.setopt(pycurl.URL, str(url))
+ c.setopt(pycurl.WRITEFUNCTION, f.write)
+ try:
+ c.perform()
+ except:
+ fname = None
+ finally:
+ c.close()
+ f.close()
+ log.debug("Coverfetch: %s -> %s", url, fname)
+ return fname
+
def _fetch_cover(self, albumid, size):
try:
coverdir = _COVERDIR if _COVERDIR else '/tmp'
to = os.path.join(coverdir, '%d-%d.jpg'%(albumid, size))
if not os.path.isfile(to):
url = _GET2+'image/album/redirect/?id=%d&imagesize=%d'%(albumid, size)
- urllib.urlretrieve(url, to)
+ to = self._retrieve(url, to)
return to
except Exception, e:
return None
coverdir = _COVERDIR if _COVERDIR else '/tmp'
to = os.path.join(coverdir, h+'.jpg')
if not os.path.isfile(to):
- urllib.urlretrieve(url, to)
+ to = self._retrieve(url, to)
return to
except Exception, e:
return None
def request_images(self, urls, cb):
"""cb([(url, image)])"""
self.cond.acquire()
- self.work.insert(0, ('images', urls, cb))
+ self.work = [('image', url, cb) for url in urls] + self.work
self.cond.notify()
self.cond.release()
multi = len(work) > 1
for job in work:
- if job[0] == 'images':
- self.process_images(job[1], job[2])
+ if job[0] == 'image':
+ self.process_image(job[1], job[2])
else:
self.process_cover(*job)
- if multi:
- time.sleep(1.0)
def process_cover(self, albumid, size, cb):
cover = self._fetch_cover(albumid, size)
if cover:
cb(albumid, size, cover)
- def process_images(self, urls, cb):
- results = [(url, image) for url, image in ((url, self._fetch_image(url)) for url in urls) if image is not None]
- if results:
- cb(results)
+ def process_image(self, url, cb):
+ image = self._fetch_image(url)
+ if image:
+ cb([(url, image)])
class CoverCache(object):
"""
_cover_cache.prime_cache()
def get_album_cover(albumid, size=100):
- return _cover_cache.get_cover(albumid, size)
+ with _APILOCK:
+ return _cover_cache.get_cover(albumid, size)
def get_album_cover_async(cb, albumid, size=100):
- _cover_cache.get_async(albumid, size, cb)
+ with _APILOCK:
+ _cover_cache.get_async(albumid, size, cb)
def get_images_async(cb, url_list):
- _cover_cache.get_images_async(url_list, cb)
+ with _APILOCK:
+ _cover_cache.get_images_async(url_list, cb)
class CustomQuery(Query):
def __init__(self, url):
'params' : 'user_idstr=%s',
'constructor' : [Album]
},
+ 'tag' : {
+ 'url' : _GET2+'+'.join(_TRACK_FIELDS)+'/track/json/track_album+album_artist?',
+ 'params' : 'tag_id=%d&n=50&order=rating_desc',
+ 'constructor' : [Track]
+ },
}
def __init__(self, what, ID):
return self.url + self.params % (self.ID)
class SearchQuery(GetQuery):
- def __init__(self, what, query=None, order=None, user=None, count=10):
+ def __init__(self, what, query=None, order=None, user=None, count=20):
GetQuery.__init__(self, what, None)
self.query = query
self.order = order
def get_artist(artist_id):
"""Returns: Artist"""
- a = _artists.get(artist_id, None)
- if not a:
- q = GetQuery('artist', artist_id)
- a = q.execute()
+ with _APILOCK:
+ a = _artists.get(artist_id, None)
if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_artists, a)
- if isinstance(a, list):
- a = a[0]
- return a
+ q = GetQuery('artist', artist_id)
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_artists, a)
+ if isinstance(a, list):
+ a = a[0]
+ return a
def get_artists(artist_ids):
"""Returns: [Artist]"""
- assert(isinstance(artist_ids, list))
- found = []
- lookup = []
- for artist_id in artist_ids:
- a = _artists.get(artist_id, None)
- if not a:
- lookup.append(artist_id)
- else:
- found.append(a)
- if lookup:
- q = GetQuery('artist_list', '+'.join(str(x) for x in lookup))
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_artists, a)
- lookup = a
- return found + lookup
+ with _APILOCK:
+ assert(isinstance(artist_ids, list))
+ found = []
+ lookup = []
+ for artist_id in artist_ids:
+ a = _artists.get(artist_id, None)
+ if not a:
+ lookup.append(artist_id)
+ else:
+ found.append(a)
+ if lookup:
+ q = GetQuery('artist_list', '+'.join(str(x) for x in lookup))
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_artists, a)
+ lookup = a
+ return found + lookup
def get_album_list(album_ids):
"""Returns: [Album]"""
- assert(isinstance(album_ids, list))
- found = []
- lookup = []
- for album_id in album_ids:
- a = _albums.get(album_id, None)
- if not a:
- lookup.append(album_id)
- else:
- found.append(a)
- if lookup:
- q = GetQuery('album_list', '+'.join(str(x) for x in lookup))
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_albums, a)
- lookup = a
- return found + lookup
+ with _APILOCK:
+ assert(isinstance(album_ids, list))
+ found = []
+ lookup = []
+ for album_id in album_ids:
+ a = _albums.get(album_id, None)
+ if not a:
+ lookup.append(album_id)
+ else:
+ found.append(a)
+ if lookup:
+ q = GetQuery('album_list', '+'.join(str(x) for x in lookup))
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_albums, a)
+ lookup = a
+ return found + lookup
def get_albums(artist_id):
"""Returns: [Album]
Parameter can either be an artist_id or a list of album ids.
"""
- if isinstance(artist_id, list):
- return get_album_list(artist_id)
- a = _artists.get(artist_id, None)
- if a and a.albums:
- return a.albums
-
- q = GetQuery('albums', artist_id)
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_artists, a)
- return a
+ with _APILOCK:
+ if isinstance(artist_id, list):
+ return get_album_list(artist_id)
+ a = _artists.get(artist_id, None)
+ if a and a.albums:
+ return a.albums
-def get_album(album_id):
- """Returns: Album"""
- a = _albums.get(album_id, None)
- if not a:
- q = GetQuery('album', album_id)
+ q = GetQuery('albums', artist_id)
a = q.execute()
if not a:
raise JamendoAPIException(str(q))
_update_cache(_albums, a)
- if isinstance(a, list):
- a = a[0]
- return a
+ return a
+
+def get_album(album_id):
+ """Returns: Album"""
+ with _APILOCK:
+ a = _albums.get(album_id, None)
+ if not a:
+ q = GetQuery('album', album_id)
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_albums, a)
+ if isinstance(a, list):
+ a = a[0]
+ return a
def get_track_list(track_ids):
"""Returns: [Track]"""
- assert(isinstance(track_ids, list))
- found = []
- lookup = []
- for track_id in track_ids:
- a = _tracks.get(track_id, None)
- if not a:
- lookup.append(track_id)
- else:
- found.append(a)
- if lookup:
- q = GetQuery('track_list', '+'.join(str(x) for x in lookup))
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_tracks, a)
- lookup = a
- return found + lookup
+ with _APILOCK:
+ assert(isinstance(track_ids, list))
+ found = []
+ lookup = []
+ for track_id in track_ids:
+ a = _tracks.get(track_id, None)
+ if not a:
+ lookup.append(track_id)
+ else:
+ found.append(a)
+ if lookup:
+ q = GetQuery('track_list', '+'.join(str(x) for x in lookup))
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_tracks, a)
+ lookup = a
+ return found + lookup
def get_tracks(album_id):
"""Returns: [Track]
Parameter can either be an album_id or a list of track ids.
"""
- if isinstance(album_id, list):
- return get_track_list(album_id)
- a = _albums.get(album_id, None)
- if a and a.tracks:
- return a.tracks
-
- q = GetQuery('tracks', album_id)
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_tracks, a)
- return a
+ with _APILOCK:
+ if isinstance(album_id, list):
+ return get_track_list(album_id)
+ a = _albums.get(album_id, None)
+ if a and a.tracks:
+ return a.tracks
+
+ q = GetQuery('tracks', album_id)
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_tracks, a)
+ return a
def get_track(track_id):
"""Returns: Track"""
- a = _tracks.get(track_id, None)
- if not a:
- q = GetQuery('track', track_id)
+ with _APILOCK:
+ a = _tracks.get(track_id, None)
+ if not a:
+ q = GetQuery('track', track_id)
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_tracks, a)
+ if isinstance(a, list):
+ a = a[0]
+ return a
+
+def get_radio_tracks(radio_id):
+ """Returns: [Track]"""
+ with _APILOCK:
+ q = GetQuery('radio', radio_id)
a = q.execute()
if not a:
raise JamendoAPIException(str(q))
_update_cache(_tracks, a)
- if isinstance(a, list):
- a = a[0]
- return a
+ return a
-def get_radio_tracks(radio_id):
+#http://api.jamendo.com/get2/id+name/track/plain/?tag_id=327&n=50&order=rating_desc
+def get_tag_tracks(tag_id):
"""Returns: [Track]"""
- q = GetQuery('radio', radio_id)
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_tracks, a)
- return a
+ with _APILOCK:
+ q = GetQuery('tag', tag_id)
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_tracks, a)
+ return a
def search_artists(query):
"""Returns: [Artist]"""
- q = SearchQuery('artist', query, 'searchweight_desc')
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_artists, a)
- return a
+ with _APILOCK:
+ q = SearchQuery('artist', query, 'searchweight_desc')
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_artists, a)
+ return a
def search_albums(query):
"""Returns: [Album]"""
- q = SearchQuery('album', query, 'searchweight_desc')
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_albums, a)
- return a
+ with _APILOCK:
+ q = SearchQuery('album', query, 'searchweight_desc')
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_albums, a)
+ return a
def search_tracks(query):
"""Returns: [Track]"""
- q = SearchQuery('track', query=query, order='searchweight_desc')
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_tracks, a)
- return a
+ with _APILOCK:
+ q = SearchQuery('track', query=query, order='searchweight_desc')
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_tracks, a)
+ return a
def albums_of_the_week():
"""Returns: [Album]"""
- q = SearchQuery('album', order='ratingweek_desc')
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_albums, a)
- return a
+ with _APILOCK:
+ q = SearchQuery('album', order='ratingweek_desc')
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_albums, a)
+ return a
def new_releases():
"""Returns: [Track] (playlist)"""
- q = SearchQuery('track', order='releasedate_desc')
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_tracks, a)
- return a
+ with _APILOCK:
+ q = SearchQuery('track', order='releasedate_desc')
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_tracks, a)
+ return a
def tracks_of_the_week():
"""Returns: [Track] (playlist)"""
- q = SearchQuery('track', order='ratingweek_desc')
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_tracks, a)
- return a
+ with _APILOCK:
+ q = SearchQuery('track', order='ratingweek_desc')
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_tracks, a)
+ return a
+
+def top_artists(order='rating_desc', count=20):
+ """Returns: [Artist]"""
+ with _APILOCK:
+ q = SearchQuery('artist', order=order, count=count)
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_artists, a)
+ return a
+
+def top_albums(order='rating_desc', count=20):
+ """Returns: [Album]"""
+ with _APILOCK:
+ q = SearchQuery('album', order=order, count=count)
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_albums, a)
+ return a
+
+def top_tracks(order='rating_desc', count=20):
+ """Returns: [Track]"""
+ with _APILOCK:
+ q = SearchQuery('track', order=order, count=count)
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_tracks, a)
+ return a
def get_radio(radio_id):
"""Returns: Radio"""
- q = CustomQuery(_GET2+"id+name+idstr+image/radio/json?id=%d"%(radio_id))
- js = q.execute()
- if not js:
- raise JamendoAPIException(str(q))
- if isinstance(js, list):
- ks = js[0]
- return Radio(radio_id, json=js)
+ with _APILOCK:
+ q = CustomQuery(_GET2+"id+name+idstr+image/radio/json?id=%d"%(radio_id))
+ js = q.execute()
+ if not js:
+ raise JamendoAPIException(str(q))
+ if isinstance(js, list):
+ ks = js[0]
+ return Radio(radio_id, json=js)
def starred_radios():
"""Returns: [Radio]"""
- q = CustomQuery(_GET2+"id+name+idstr+image/radio/json?order=starred_desc")
- js = q.execute()
- if not js:
- raise JamendoAPIException(str(q))
- return [Radio(int(radio['id']), json=radio) for radio in js]
+ with _APILOCK:
+ q = CustomQuery(_GET2+"id+name+idstr+image/radio/json?order=starred_desc")
+ js = q.execute()
+ if not js:
+ raise JamendoAPIException(str(q))
+ return [Radio(int(radio['id']), json=radio) for radio in js]
+
+def top_tags(count=50, order='rating_desc'):
+ """Returns: [Tag]"""
+ with _APILOCK:
+ q = CustomQuery(_GET2+"id+name/tag/json?n=%d&order=%s"%(count, order))
+ js = q.execute()
+ if not js:
+ raise JamendoAPIException(str(q))
+ return [Tag(int(tag['id']), json=tag) for tag in js]
def favorite_albums(user):
"""Returns: [Album]"""
- q = SearchQuery('favorite_albums', user=user, count=20)
- a = q.execute()
- if not a:
- raise JamendoAPIException(str(q))
- _update_cache(_albums, a)
- return a
+ with _APILOCK:
+ q = SearchQuery('favorite_albums', user=user, count=20)
+ a = q.execute()
+ if not a:
+ raise JamendoAPIException(str(q))
+ _update_cache(_albums, a)
+ return a
### Set loader functions for classes
projects / jamaendo / blobdiff