# modification, are permitted provided that the following conditions are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
-# * Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-# * Neither the name of Jamaendo nor the
-# names of its contributors may be used to endorse or promote products
-# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# An improved, structured jamendo API wrapper for the N900 with cacheing
# Image / cover downloads.. and more?
import urllib, threading, os, time, simplejson, re
-import logging
+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']
+
+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
+
+ def _fetch_image(self, url):
+ try:
+ h = hashlib.md5(url).hexdigest()
+ coverdir = _COVERDIR if _COVERDIR else '/tmp'
+ to = os.path.join(coverdir, h+'.jpg')
+ if not os.path.isfile(to):
+ to = self._retrieve(url, to)
return to
except Exception, e:
return None
self.cond.notify()
self.cond.release()
+ def request_images(self, urls, cb):
+ """cb([(url, image)])"""
+ self.cond.acquire()
+ self.work = [('image', url, cb) for url in urls] + self.work
+ self.cond.notify()
+ self.cond.release()
+
def run(self):
while True:
work = []
self.cond.release()
multi = len(work) > 1
- for albumid, size, cb in work:
- cover = self._fetch_cover(albumid, size)
- if cover:
- cb(albumid, size, cover)
- if multi:
- time.sleep(1.0)
+ for job in work:
+ if job[0] == 'image':
+ self.process_image(job[1], job[2])
+ else:
+ self.process_cover(*job)
+
+ def process_cover(self, albumid, size, cb):
+ cover = self._fetch_cover(albumid, size)
+ if cover:
+ cb(albumid, size, cover)
+
+ def process_image(self, url, cb):
+ image = self._fetch_image(url)
+ if image:
+ cb([(url, image)])
class CoverCache(object):
"""
"""
def __init__(self):
self._covers = {} # (albumid, size) -> file
+ self._images = {}
self._fetcher = CoverFetcher()
self._fetcher.start()
if _COVERDIR and os.path.isdir(_COVERDIR):
if cover:
cb(albumid, size, cover)
else:
- self._fetcher.request_cover(albumid, size, cb)
+ def cb2(albumid, size, cover):
+ self._covers[(albumid, size)] = cover
+ cb(albumid, size, cover)
+ self._fetcher.request_cover(albumid, size, cb2)
+
+ def get_images_async(self, url_list, cb):
+ found = []
+ lookup = []
+ for url in url_list:
+ image = self._images.get(url, None)
+ if image:
+ found.append((url, image))
+ else:
+ lookup.append(url)
+ if found:
+ cb(found)
+
+ if lookup:
+ def cb2(results):
+ for url, image in results:
+ self._images[url] = image
+ cb(results)
+ self._fetcher.request_images(lookup, cb2)
_cover_cache = CoverCache()
def get_album_cover_async(cb, albumid, size=100):
_cover_cache.get_async(albumid, size, cb)
+def get_images_async(cb, url_list):
+ _cover_cache.get_images_async(url_list, cb)
+
class CustomQuery(Query):
def __init__(self, url):
Query.__init__(self)
},
'radio' : {
'url' : _GET2+'+'.join(_TRACK_FIELDS)+'/track/json/radio_track_inradioplaylist+track_album+album_artist/?',
- 'params' : 'order=random_asc&radio_id=%d',
+ 'params' : 'order=random_asc&radio_id=%d&n=16',
'constructor' : [Track]
},
'favorite_albums' : {
'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
a = q.execute()
if not a:
raise JamendoAPIException(str(q))
- _update_cache(_artists, a)
+ _update_cache(_albums, a)
return a
def get_album(album_id):
_update_cache(_tracks, a)
return a
+#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('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')
_update_cache(_tracks, a)
return a
+def top_artists(order='rating_desc', count=20):
+ """Returns: [Artist]"""
+ 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]"""
+ 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]"""
+ 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))
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]"""
+ 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)
projects / jamaendo / blobdiff