_ Git - youtube-dl/blob - youtube_dl/extractor/bandcamp.py

   1 from __future__ import unicode_literals
   2
   3 import json
   4 import re
   5
   6 from .common import InfoExtractor
   7 from ..utils import (
   8     compat_str,
   9     compat_urlparse,
  10     ExtractorError,
  11 )
  12
  13
  14 class BandcampIE(InfoExtractor):
  15     _VALID_URL = r'http://.*?\.bandcamp\.com/track/(?P<title>.*)'
  16     _TESTS = [{
  17         'url': 'http://youtube-dl.bandcamp.com/track/youtube-dl-test-song',
  18         'file': '1812978515.mp3',
  19         'md5': 'c557841d5e50261777a6585648adf439',
  20         'info_dict': {
  21             "title": "youtube-dl  \"'/\\\u00e4\u21ad - youtube-dl test song \"'/\\\u00e4\u21ad",
  22             "duration": 10,
  23         },
  24         '_skip': 'There is a limit of 200 free downloads / month for the test song'
  25     }]
  26
  27     def _real_extract(self, url):
  28         mobj = re.match(self._VALID_URL, url)
  29         title = mobj.group('title')
  30         webpage = self._download_webpage(url, title)
  31         # We get the link to the free download page
  32         m_download = re.search(r'freeDownloadPage: "(.*?)"', webpage)
  33         if m_download is None:
  34             m_trackinfo = re.search(r'trackinfo: (.+),\s*?\n', webpage)
  35             if m_trackinfo:
  36                 json_code = m_trackinfo.group(1)
  37                 data = json.loads(json_code)
  38                 d = data[0]
  39
  40                 duration = int(round(d['duration']))
  41                 formats = []
  42                 for format_id, format_url in d['file'].items():
  43                     ext, _, abr_str = format_id.partition('-')
  44
  45                     formats.append({
  46                         'format_id': format_id,
  47                         'url': format_url,
  48                         'ext': format_id.partition('-')[0],
  49                         'vcodec': 'none',
  50                         'acodec': format_id.partition('-')[0],
  51                         'abr': int(format_id.partition('-')[2]),
  52                     })
  53
  54                 self._sort_formats(formats)
  55
  56                 return {
  57                     'id': compat_str(d['id']),
  58                     'title': d['title'],
  59                     'formats': formats,
  60                     'duration': duration,
  61                 }
  62             else:
  63                 raise ExtractorError('No free songs found')
  64
  65         download_link = m_download.group(1)
  66         video_id = re.search(
  67             r'var TralbumData = {(.*?)id: (?P<id>\d*?)$',
  68             webpage, re.MULTILINE | re.DOTALL).group('id')
  69
  70         download_webpage = self._download_webpage(download_link, video_id,
  71                                                   'Downloading free downloads page')
  72         # We get the dictionary of the track from some javascrip code
  73         info = re.search(r'items: (.*?),$',
  74                          download_webpage, re.MULTILINE).group(1)
  75         info = json.loads(info)[0]
  76         # We pick mp3-320 for now, until format selection can be easily implemented.
  77         mp3_info = info['downloads']['mp3-320']
  78         # If we try to use this url it says the link has expired
  79         initial_url = mp3_info['url']
  80         re_url = r'(?P<server>http://(.*?)\.bandcamp\.com)/download/track\?enc=mp3-320&fsig=(?P<fsig>.*?)&id=(?P<id>.*?)&ts=(?P<ts>.*)$'
  81         m_url = re.match(re_url, initial_url)
  82         #We build the url we will use to get the final track url
  83         # This url is build in Bandcamp in the script download_bunde_*.js
  84         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'))
  85         final_url_webpage = self._download_webpage(request_url, video_id, 'Requesting download url')
  86         # If we could correctly generate the .rand field the url would be
  87         #in the "download_url" key
  88         final_url = re.search(r'"retry_url":"(.*?)"', final_url_webpage).group(1)
  89
  90         return {
  91             'id': video_id,
  92             'title': info['title'],
  93             'ext': 'mp3',
  94             'vcodec': 'none',
  95             'url': final_url,
  96             'thumbnail': info['thumb_url'],
  97             'uploader': info['artist'],
  98         }
  99
 100
 101 class BandcampAlbumIE(InfoExtractor):
 102     IE_NAME = 'Bandcamp:album'
 103     _VALID_URL = r'http://.*?\.bandcamp\.com/album/(?P<title>.*)'
 104
 105     _TEST = {
 106         'url': 'http://blazo.bandcamp.com/album/jazz-format-mixtape-vol-1',
 107         'playlist': [
 108             {
 109                 'file': '1353101989.mp3',
 110                 'md5': '39bc1eded3476e927c724321ddf116cf',
 111                 'info_dict': {
 112                     'title': 'Intro',
 113                 }
 114             },
 115             {
 116                 'file': '38097443.mp3',
 117                 'md5': '1a2c32e2691474643e912cc6cd4bffaa',
 118                 'info_dict': {
 119                     'title': 'Kero One - Keep It Alive (Blazo remix)',
 120                 }
 121             },
 122         ],
 123         'params': {
 124             'playlistend': 2
 125         },
 126         'skip': 'Bancamp imposes download limits. See test_playlists:test_bandcamp_album for the playlist test'
 127     }
 128
 129     def _real_extract(self, url):
 130         mobj = re.match(self._VALID_URL, url)
 131         title = mobj.group('title')
 132         webpage = self._download_webpage(url, title)
 133         tracks_paths = re.findall(r'<a href="(.*?)" itemprop="url">', webpage)
 134         if not tracks_paths:
 135             raise ExtractorError('The page doesn\'t contain any tracks')
 136         entries = [
 137             self.url_result(compat_urlparse.urljoin(url, t_path), ie=BandcampIE.ie_key())
 138             for t_path in tracks_paths]
 139         title = self._search_regex(r'album_title : "(.*?)"', webpage, 'title')
 140         return {
 141             '_type': 'playlist',
 142             'title': title,
 143             'entries': entries,
 144         }