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63 lines
2.8 KiB
63 lines
2.8 KiB
import json |
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import re |
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from .common import InfoExtractor |
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from ..utils import ( |
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ExtractorError, |
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) |
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class BandcampIE(InfoExtractor): |
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_VALID_URL = r'http://.*?\.bandcamp\.com/track/(?P<title>.*)' |
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_TEST = { |
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u'url': u'http://youtube-dl.bandcamp.com/track/youtube-dl-test-song', |
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u'file': u'1812978515.mp3', |
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u'md5': u'cdeb30cdae1921719a3cbcab696ef53c', |
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u'info_dict': { |
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u"title": u"youtube-dl test song \"'/\\\u00e4\u21ad" |
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}, |
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u'skip': u'There is a limit of 200 free downloads / month for the test song' |
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} |
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def _real_extract(self, url): |
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mobj = re.match(self._VALID_URL, url) |
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title = mobj.group('title') |
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webpage = self._download_webpage(url, title) |
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# We get the link to the free download page |
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m_download = re.search(r'freeDownloadPage: "(.*?)"', webpage) |
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if m_download is None: |
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raise ExtractorError(u'No free songs found') |
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download_link = m_download.group(1) |
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id = re.search(r'var TralbumData = {(.*?)id: (?P<id>\d*?)$', |
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webpage, re.MULTILINE|re.DOTALL).group('id') |
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download_webpage = self._download_webpage(download_link, id, |
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'Downloading free downloads page') |
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# We get the dictionary of the track from some javascrip code |
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info = re.search(r'items: (.*?),$', |
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download_webpage, re.MULTILINE).group(1) |
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info = json.loads(info)[0] |
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# We pick mp3-320 for now, until format selection can be easily implemented. |
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mp3_info = info[u'downloads'][u'mp3-320'] |
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# If we try to use this url it says the link has expired |
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initial_url = mp3_info[u'url'] |
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re_url = r'(?P<server>http://(.*?)\.bandcamp\.com)/download/track\?enc=mp3-320&fsig=(?P<fsig>.*?)&id=(?P<id>.*?)&ts=(?P<ts>.*)$' |
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m_url = re.match(re_url, initial_url) |
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#We build the url we will use to get the final track url |
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# This url is build in Bandcamp in the script download_bunde_*.js |
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request_url = '%s/statdownload/track?enc=mp3-320&fsig=%s&id=%s&ts=%s&.rand=665028774616&.vrs=1' % (m_url.group('server'), m_url.group('fsig'), id, m_url.group('ts')) |
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final_url_webpage = self._download_webpage(request_url, id, 'Requesting download url') |
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# If we could correctly generate the .rand field the url would be |
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#in the "download_url" key |
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final_url = re.search(r'"retry_url":"(.*?)"', final_url_webpage).group(1) |
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track_info = {'id':id, |
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'title' : info[u'title'], |
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'ext' : 'mp3', |
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'url' : final_url, |
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'thumbnail' : info[u'thumb_url'], |
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'uploader' : info[u'artist'] |
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} |
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return [track_info]
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