ytdl/youtube_dl/extractor/soundcloud.py

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2013-06-23 20:57:44 +02:00
import json
import re
from .common import InfoExtractor
from ..utils import (
compat_str,
ExtractorError,
unified_strdate,
)
class SoundcloudIE(InfoExtractor):
"""Information extractor for soundcloud.com
To access the media, the uid of the song and a stream token
must be extracted from the page source and the script must make
a request to media.soundcloud.com/crossdomain.xml. Then
the media can be grabbed by requesting from an url composed
of the stream token and uid
"""
_VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/([\w\d-]+)'
IE_NAME = u'soundcloud'
def report_resolve(self, video_id):
"""Report information extraction."""
self.to_screen(u'%s: Resolving id' % video_id)
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
if mobj is None:
raise ExtractorError(u'Invalid URL: %s' % url)
# extract uploader (which is in the url)
uploader = mobj.group(1)
# extract simple title (uploader + slug of song title)
slug_title = mobj.group(2)
full_title = '%s/%s' % (uploader, slug_title)
self.report_resolve(full_title)
url = 'http://soundcloud.com/%s/%s' % (uploader, slug_title)
resolv_url = 'http://api.soundcloud.com/resolve.json?url=' + url + '&client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
info_json = self._download_webpage(resolv_url, full_title, u'Downloading info JSON')
info = json.loads(info_json)
video_id = info['id']
self.report_extraction(full_title)
streams_url = 'https://api.sndcdn.com/i1/tracks/' + str(video_id) + '/streams?client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
stream_json = self._download_webpage(streams_url, full_title,
u'Downloading stream definitions',
u'unable to download stream definitions')
streams = json.loads(stream_json)
mediaURL = streams['http_mp3_128_url']
upload_date = unified_strdate(info['created_at'])
return [{
'id': info['id'],
'url': mediaURL,
'uploader': info['user']['username'],
'upload_date': upload_date,
'title': info['title'],
'ext': u'mp3',
'description': info['description'],
}]
class SoundcloudSetIE(InfoExtractor):
"""Information extractor for soundcloud.com sets
To access the media, the uid of the song and a stream token
must be extracted from the page source and the script must make
a request to media.soundcloud.com/crossdomain.xml. Then
the media can be grabbed by requesting from an url composed
of the stream token and uid
"""
_VALID_URL = r'^(?:https?://)?(?:www\.)?soundcloud\.com/([\w\d-]+)/sets/([\w\d-]+)'
IE_NAME = u'soundcloud:set'
def report_resolve(self, video_id):
"""Report information extraction."""
self.to_screen(u'%s: Resolving id' % video_id)
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
if mobj is None:
raise ExtractorError(u'Invalid URL: %s' % url)
# extract uploader (which is in the url)
uploader = mobj.group(1)
# extract simple title (uploader + slug of song title)
slug_title = mobj.group(2)
full_title = '%s/sets/%s' % (uploader, slug_title)
self.report_resolve(full_title)
url = 'http://soundcloud.com/%s/sets/%s' % (uploader, slug_title)
resolv_url = 'http://api.soundcloud.com/resolve.json?url=' + url + '&client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
info_json = self._download_webpage(resolv_url, full_title)
videos = []
info = json.loads(info_json)
if 'errors' in info:
for err in info['errors']:
self._downloader.report_error(u'unable to download video webpage: %s' % compat_str(err['error_message']))
return
self.report_extraction(full_title)
for track in info['tracks']:
video_id = track['id']
streams_url = 'https://api.sndcdn.com/i1/tracks/' + str(video_id) + '/streams?client_id=b45b1aa10f1ac2941910a7f0d10f8e28'
stream_json = self._download_webpage(streams_url, video_id, u'Downloading track info JSON')
self.report_extraction(video_id)
streams = json.loads(stream_json)
mediaURL = streams['http_mp3_128_url']
videos.append({
'id': video_id,
'url': mediaURL,
'uploader': track['user']['username'],
'upload_date': unified_strdate(track['created_at']),
'title': track['title'],
'ext': u'mp3',
'description': track['description'],
})
return videos