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@@ -0,0 +1,205 @@
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+# coding: utf-8
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+from __future__ import unicode_literals
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+
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+import time
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+import math
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+import re
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+
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+from urllib import quote, urlencode
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+from os.path import basename
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+
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+from .common import InfoExtractor
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+from ..utils import ExtractorError, compat_urllib_request, compat_html_parser
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+
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+from ..utils import compat_urlparse
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+urlparse = compat_urlparse.urlparse
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+urlunparse = compat_urlparse.urlunparse
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+urldefrag = compat_urlparse.urldefrag
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+
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+
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+class GroovesharkHtmlParser(compat_html_parser.HTMLParser):
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+ def __init__(self):
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+ self._current_object = None
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+ self.objects = []
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+ compat_html_parser.HTMLParser.__init__(self)
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+
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+ def handle_starttag(self, tag, attrs):
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+ attrs = dict((k, v) for k, v in attrs)
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+ if tag == 'object':
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+ self._current_object = {'attrs': attrs, 'params': []}
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+ elif tag == 'param':
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+ self._current_object['params'].append(attrs)
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+
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+ def handle_endtag(self, tag):
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+ if tag == 'object':
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+ self.objects.append(self._current_object)
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+ self._current_object = None
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+
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+ @classmethod
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+ def extract_object_tags(cls, html):
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+ p = cls()
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+ p.feed(html)
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+ p.close()
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+ return p.objects
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+
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+
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+class GroovesharkIE(InfoExtractor):
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+ _VALID_URL = r'https?://(www\.)?grooveshark\.com/#!/s/([^/]+)/([^/]+)'
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+ _TEST = {
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+ 'url': 'http://grooveshark.com/#!/s/Jolene+Tenth+Key+Remix+Ft+Will+Sessions/6SS1DW?src=5',
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+ 'md5': 'bbccc50b19daca23b8f961152c1dc95b',
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+ 'info_dict': {
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+ 'id': '6SS1DW',
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+ 'title': 'Jolene (Tenth Key Remix ft. Will Sessions)',
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+ 'ext': 'mp3',
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+ 'duration': 227
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+ }
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+ }
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+
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+ do_playerpage_request = True
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+ do_bootstrap_request = True
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+
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+ def _parse_target(self, target):
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+ uri = urlparse(target)
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+ hash = uri.fragment[1:].split('?')[0]
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+ token = basename(hash.rstrip('/'))
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+ return (uri, hash, token)
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+
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+ def _build_bootstrap_url(self, target):
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+ (uri, hash, token) = self._parse_target(target)
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+ query = 'getCommunicationToken=1&hash=%s&%d' % (quote(hash, safe=''), self.ts)
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+ return (urlunparse((uri.scheme, uri.netloc, '/preload.php', None, query, None)), token)
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+
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+ def _build_meta_url(self, target):
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+ (uri, hash, token) = self._parse_target(target)
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+ query = 'hash=%s&%d' % (quote(hash, safe=''), self.ts)
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+ return (urlunparse((uri.scheme, uri.netloc, '/preload.php', None, query, None)), token)
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+
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+ def _build_stream_url(self, meta):
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+ return urlunparse(('http', meta['streamKey']['ip'], '/stream.php', None, None, None))
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+
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+ def _build_swf_referer(self, target, obj):
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+ (uri, _, _) = self._parse_target(target)
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+ return urlunparse((uri.scheme, uri.netloc, obj['attrs']['data'], None, None, None))
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+
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+ def _transform_bootstrap(self, js):
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+ return re.split('(?m)^\s*try\s*{', js)[0] \
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+ .split(' = ', 1)[1].strip().rstrip(';')
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+
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+ def _transform_meta(self, js):
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+ return js.split('\n')[0].split('=')[1].rstrip(';')
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+
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+ def _get_meta(self, target):
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+ (meta_url, token) = self._build_meta_url(target)
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+ self.to_screen('Metadata URL: %s' % meta_url)
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+
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+ headers = {'Referer': urldefrag(target)[0]}
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+ req = compat_urllib_request.Request(meta_url, headers=headers)
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+ res = self._download_json(req, token,
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+ transform_source=self._transform_meta)
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+
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+ if 'getStreamKeyWithSong' not in res:
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+ raise ExtractorError(
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+ 'Metadata not found. URL may be malformed, or Grooveshark API may have changed.')
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+
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+ if res['getStreamKeyWithSong'] is None:
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+ raise ExtractorError(
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+ 'Metadata download failed, probably due to Grooveshark anti-abuse throttling. Wait at least an hour before retrying from this IP.',
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+ expected=True)
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+
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+ return res['getStreamKeyWithSong']
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+
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+ def _get_bootstrap(self, target):
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+ (bootstrap_url, token) = self._build_bootstrap_url(target)
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+
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+ headers = {'Referer': urldefrag(target)[0]}
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+ req = compat_urllib_request.Request(bootstrap_url, headers=headers)
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+ res = self._download_json(req, token, fatal=False,
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+ note='Downloading player bootstrap data',
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+ errnote='Unable to download player bootstrap data',
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+ transform_source=self._transform_bootstrap)
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+ return res
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+
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+ def _get_playerpage(self, target):
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+ (_, _, token) = self._parse_target(target)
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+
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+ res = self._download_webpage(
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+ target, token,
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+ note='Downloading player page',
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+ errnote='Unable to download player page',
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+ fatal=False)
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+
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+ if res is not None:
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+ o = GroovesharkHtmlParser.extract_object_tags(res)
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+ return (res, [x for x in o if x['attrs']['id'] == 'jsPlayerEmbed'])
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+
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+ return (res, None)
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+
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+ def _real_extract(self, url):
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+ (target_uri, _, token) = self._parse_target(url)
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+
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+ # 1. Fill cookiejar by making a request to the player page
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+ if self.do_playerpage_request:
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+ (_, player_objs) = self._get_playerpage(url)
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+ if player_objs is not None:
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+ swf_referer = self._build_swf_referer(url, player_objs[0])
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+ self.to_screen('SWF Referer: %s' % swf_referer)
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+
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+ # 2. Ask preload.php for swf bootstrap data to better mimic webapp
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+ if self.do_bootstrap_request:
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+ bootstrap = self._get_bootstrap(url)
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+ self.to_screen('CommunicationToken: %s' % bootstrap['getCommunicationToken'])
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+
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+ # 3. Ask preload.php for track metadata.
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+ meta = self._get_meta(url)
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+
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+ # 4. Construct stream request for track.
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+ stream_url = self._build_stream_url(meta)
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+ duration = int(math.ceil(float(meta['streamKey']['uSecs']) / 1000000))
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+ post_dict = {'streamKey': meta['streamKey']['streamKey']}
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+ post_data = urlencode(post_dict).encode('utf-8')
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+ headers = {
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+ 'Content-Length': len(post_data),
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+ 'Content-Type': 'application/x-www-form-urlencoded'
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+ }
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+
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+ if 'swf_referer' in locals():
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+ headers['Referer'] = swf_referer
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+
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+ info_dict = {
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+ 'id': token,
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+ 'title': meta['song']['Name'],
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+ 'http_method': 'POST',
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+ 'url': stream_url,
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+ 'ext': 'mp3',
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+ 'format': 'mp3 audio',
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+ 'duration': duration,
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+
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+ # various ways of supporting the download request.
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+ # remove keys unnecessary to the eventual post implementation
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+ 'post_data': post_data,
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+ 'post_dict': post_dict,
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+ 'headers': headers
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+ }
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+
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+ if 'swf_referer' in locals():
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+ info_dict['http_referer'] = swf_referer
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+
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+ return info_dict
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+
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+ def _real_initialize(self):
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+ self.ts = int(time.time() * 1000) # timestamp in millis
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+
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+ def _download_json(self, url_or_request, video_id,
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+ note=u'Downloading JSON metadata',
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+ errnote=u'Unable to download JSON metadata',
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+ fatal=True,
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+ transform_source=None):
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+ try:
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+ out = super(GroovesharkIE, self)._download_json(
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+ url_or_request, video_id, note, errnote, transform_source)
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+ return out
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+ except ExtractorError as ee:
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+ if fatal:
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+ raise ee
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+ return None
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Philipp Hagemeister