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youtube-dl/youtube_dl/extractor/eighttracks.py

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2013-06-24 04:15:50 +08:00
import itertools
import json
import random
import re
from .common import InfoExtractor
from ..utils import (
ExtractorError,
)
class EightTracksIE(InfoExtractor):
IE_NAME = '8tracks'
_VALID_URL = r'https?://8tracks.com/(?P<user>[^/]+)/(?P<id>[^/#]+)(?:#.*)?$'
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
if mobj is None:
raise ExtractorError(u'Invalid URL: %s' % url)
playlist_id = mobj.group('id')
webpage = self._download_webpage(url, playlist_id)
json_like = self._search_regex(r"PAGE.mix = (.*?);\n", webpage, u'trax information', flags=re.DOTALL)
data = json.loads(json_like)
session = str(random.randint(0, 1000000000))
mix_id = data['id']
track_count = data['tracks_count']
first_url = 'http://8tracks.com/sets/%s/play?player=sm&mix_id=%s&format=jsonh' % (session, mix_id)
next_url = first_url
res = []
for i in itertools.count():
api_json = self._download_webpage(next_url, playlist_id,
note=u'Downloading song information %s/%s' % (str(i+1), track_count),
errnote=u'Failed to download song information')
api_data = json.loads(api_json)
track_data = api_data[u'set']['track']
info = {
'id': track_data['id'],
'url': track_data['track_file_stream_url'],
'title': track_data['performer'] + u' - ' + track_data['name'],
'raw_title': track_data['name'],
'uploader_id': data['user']['login'],
'ext': 'm4a',
}
res.append(info)
if api_data['set']['at_last_track']:
break
next_url = 'http://8tracks.com/sets/%s/next?player=sm&mix_id=%s&format=jsonh&track_id=%s' % (session, mix_id, track_data['id'])
return res