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[youtubedl] / youtube_dl / extractor / bandcamp.py
1 import json
2 import re
3
4 from .common import InfoExtractor
5 from ..utils import (
6 compat_str,
7 compat_urlparse,
8 ExtractorError,
9 )
10
11
12 class BandcampIE(InfoExtractor):
13 IE_NAME = u'Bandcamp'
14 _VALID_URL = r'http://.*?\.bandcamp\.com/track/(?P<title>.*)'
15 _TESTS = [{
16 u'url': u'http://youtube-dl.bandcamp.com/track/youtube-dl-test-song',
17 u'file': u'1812978515.mp3',
18 u'md5': u'cdeb30cdae1921719a3cbcab696ef53c',
19 u'info_dict': {
20 u"title": u"youtube-dl test song \"'/\\\u00e4\u21ad"
21 },
22 u'skip': u'There is a limit of 200 free downloads / month for the test song'
23 }]
24
25 def _real_extract(self, url):
26 mobj = re.match(self._VALID_URL, url)
27 title = mobj.group('title')
28 webpage = self._download_webpage(url, title)
29 # We get the link to the free download page
30 m_download = re.search(r'freeDownloadPage: "(.*?)"', webpage)
31 if m_download is None:
32 m_trackinfo = re.search(r'trackinfo: (.+),\s*?\n', webpage)
33 if m_trackinfo:
34 json_code = m_trackinfo.group(1)
35 data = json.loads(json_code)
36
37 for d in data:
38 formats = [{
39 'format_id': 'format_id',
40 'url': format_url,
41 'ext': format_id.partition('-')[0]
42 } for format_id, format_url in sorted(d['file'].items())]
43 return {
44 'id': compat_str(d['id']),
45 'title': d['title'],
46 'formats': formats,
47 }
48 else:
49 raise ExtractorError(u'No free songs found')
50
51 download_link = m_download.group(1)
52 id = re.search(r'var TralbumData = {(.*?)id: (?P<id>\d*?)$',
53 webpage, re.MULTILINE|re.DOTALL).group('id')
54
55 download_webpage = self._download_webpage(download_link, id,
56 'Downloading free downloads page')
57 # We get the dictionary of the track from some javascrip code
58 info = re.search(r'items: (.*?),$',
59 download_webpage, re.MULTILINE).group(1)
60 info = json.loads(info)[0]
61 # We pick mp3-320 for now, until format selection can be easily implemented.
62 mp3_info = info[u'downloads'][u'mp3-320']
63 # If we try to use this url it says the link has expired
64 initial_url = mp3_info[u'url']
65 re_url = r'(?P<server>http://(.*?)\.bandcamp\.com)/download/track\?enc=mp3-320&fsig=(?P<fsig>.*?)&id=(?P<id>.*?)&ts=(?P<ts>.*)$'
66 m_url = re.match(re_url, initial_url)
67 #We build the url we will use to get the final track url
68 # This url is build in Bandcamp in the script download_bunde_*.js
69 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'))
70 final_url_webpage = self._download_webpage(request_url, id, 'Requesting download url')
71 # If we could correctly generate the .rand field the url would be
72 #in the "download_url" key
73 final_url = re.search(r'"retry_url":"(.*?)"', final_url_webpage).group(1)
74
75 track_info = {'id':id,
76 'title' : info[u'title'],
77 'ext' : 'mp3',
78 'url' : final_url,
79 'thumbnail' : info[u'thumb_url'],
80 'uploader' : info[u'artist']
81 }
82
83 return [track_info]
84
85
86 class BandcampAlbumIE(InfoExtractor):
87 IE_NAME = u'Bandcamp:album'
88 _VALID_URL = r'http://.*?\.bandcamp\.com/album/(?P<title>.*)'
89
90 _TEST = {
91 u'url': u'http://blazo.bandcamp.com/album/jazz-format-mixtape-vol-1',
92 u'playlist': [
93 {
94 u'file': u'1353101989.mp3',
95 u'md5': u'39bc1eded3476e927c724321ddf116cf',
96 u'info_dict': {
97 u'title': u'Intro',
98 }
99 },
100 {
101 u'file': u'38097443.mp3',
102 u'md5': u'1a2c32e2691474643e912cc6cd4bffaa',
103 u'info_dict': {
104 u'title': u'Kero One - Keep It Alive (Blazo remix)',
105 }
106 },
107 ],
108 u'params': {
109 u'playlistend': 2
110 },
111 u'skip': u'Bancamp imposes download limits. See test_playlists:test_bandcamp_album for the playlist test'
112 }
113
114 def _real_extract(self, url):
115 mobj = re.match(self._VALID_URL, url)
116 title = mobj.group('title')
117 webpage = self._download_webpage(url, title)
118 tracks_paths = re.findall(r'<a href="(.*?)" itemprop="url">', webpage)
119 if not tracks_paths:
120 raise ExtractorError(u'The page doesn\'t contain any track')
121 entries = [
122 self.url_result(compat_urlparse.urljoin(url, t_path), ie=BandcampIE.ie_key())
123 for t_path in tracks_paths]
124 title = self._search_regex(r'album_title : "(.*?)"', webpage, u'title')
125 return {
126 '_type': 'playlist',
127 'title': title,
128 'entries': entries,
129 }