youtube-dl/youtube_dl/extractor/bandcamp.py

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from __future__ import unicode_literals
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import json
import re
from .common import InfoExtractor
from ..compat import (
compat_str,
compat_urlparse,
)
from ..utils import (
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ExtractorError,
)
class BandcampIE(InfoExtractor):
_VALID_URL = r'https?://.*?\.bandcamp\.com/track/(?P<title>.*)'
_TESTS = [{
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'url': 'http://youtube-dl.bandcamp.com/track/youtube-dl-test-song',
'md5': 'c557841d5e50261777a6585648adf439',
'info_dict': {
'id': '1812978515',
'ext': 'mp3',
'title': "youtube-dl \"'/\\\u00e4\u21ad - youtube-dl test song \"'/\\\u00e4\u21ad",
'duration': 9.8485,
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},
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'_skip': 'There is a limit of 200 free downloads / month for the test song'
}, {
'url': 'http://benprunty.bandcamp.com/track/lanius-battle',
'md5': '2b68e5851514c20efdff2afc5603b8b4',
'info_dict': {
'id': '2650410135',
'ext': 'mp3',
'title': 'Lanius (Battle)',
'uploader': 'Ben Prunty Music',
},
}]
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def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
title = mobj.group('title')
webpage = self._download_webpage(url, title)
m_download = re.search(r'freeDownloadPage: "(.*?)"', webpage)
if not m_download:
m_trackinfo = re.search(r'trackinfo: (.+),\s*?\n', webpage)
if m_trackinfo:
json_code = m_trackinfo.group(1)
data = json.loads(json_code)[0]
formats = []
for format_id, format_url in data['file'].items():
ext, abr_str = format_id.split('-', 1)
formats.append({
'format_id': format_id,
'url': format_url,
'ext': ext,
'vcodec': 'none',
'acodec': ext,
'abr': int(abr_str),
})
self._sort_formats(formats)
return {
'id': compat_str(data['id']),
'title': data['title'],
'formats': formats,
'duration': float(data['duration']),
}
else:
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raise ExtractorError('No free songs found')
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download_link = m_download.group(1)
video_id = self._search_regex(
r'var TralbumData = {.*?id: (?P<id>\d+),?$',
webpage, 'video id', flags=re.MULTILINE | re.DOTALL)
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download_webpage = self._download_webpage(download_link, video_id, 'Downloading free downloads page')
# We get the dictionary of the track from some javascript code
info = re.search(r'items: (.*?),$', download_webpage, re.MULTILINE).group(1)
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info = json.loads(info)[0]
# We pick mp3-320 for now, until format selection can be easily implemented.
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mp3_info = info['downloads']['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['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>.*)$'
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
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'), video_id, m_url.group('ts'))
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final_url_webpage = self._download_webpage(request_url, video_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)
return {
'id': video_id,
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'title': info['title'],
'ext': 'mp3',
'vcodec': 'none',
'url': final_url,
'thumbnail': info.get('thumb_url'),
'uploader': info.get('artist'),
}
class BandcampAlbumIE(InfoExtractor):
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IE_NAME = 'Bandcamp:album'
_VALID_URL = r'https?://(?:(?P<subdomain>[^.]+)\.)?bandcamp\.com(?:/album/(?P<title>[^?#]+))?'
_TESTS = [{
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'url': 'http://blazo.bandcamp.com/album/jazz-format-mixtape-vol-1',
'playlist': [
{
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'md5': '39bc1eded3476e927c724321ddf116cf',
'info_dict': {
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'id': '1353101989',
'ext': 'mp3',
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'title': 'Intro',
}
},
{
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'md5': '1a2c32e2691474643e912cc6cd4bffaa',
'info_dict': {
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'id': '38097443',
'ext': 'mp3',
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'title': 'Kero One - Keep It Alive (Blazo remix)',
}
},
],
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'info_dict': {
'title': 'Jazz Format Mixtape vol.1',
},
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'params': {
'playlistend': 2
},
'skip': 'Bandcamp imposes download limits. See test_playlists:test_bandcamp_album for the playlist test'
}, {
'url': 'http://nightbringer.bandcamp.com/album/hierophany-of-the-open-grave',
'info_dict': {
'title': 'Hierophany of the Open Grave',
},
'playlist_mincount': 9,
}, {
'url': 'http://dotscale.bandcamp.com',
'info_dict': {
'title': 'Loom',
},
'playlist_mincount': 7,
}]
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
playlist_id = mobj.group('subdomain')
title = mobj.group('title')
display_id = title or playlist_id
webpage = self._download_webpage(url, display_id)
tracks_paths = re.findall(r'<a href="(.*?)" itemprop="url">', webpage)
if not tracks_paths:
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raise ExtractorError('The page doesn\'t contain any tracks')
entries = [
self.url_result(compat_urlparse.urljoin(url, t_path), ie=BandcampIE.ie_key())
for t_path in tracks_paths]
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title = self._search_regex(r'album_title : "(.*?)"', webpage, 'title')
return {
'_type': 'playlist',
'id': playlist_id,
'display_id': display_id,
'title': title,
'entries': entries,
}