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			356 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			356 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| from __future__ import unicode_literals
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| 
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| import json
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| import random
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| import re
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| import time
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| 
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| from .common import InfoExtractor
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| from ..compat import (
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|     compat_str,
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|     compat_urlparse,
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| )
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| from ..utils import (
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|     ExtractorError,
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|     float_or_none,
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|     int_or_none,
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|     KNOWN_EXTENSIONS,
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|     parse_filesize,
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|     unescapeHTML,
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|     update_url_query,
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|     unified_strdate,
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|     url_or_none,
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| )
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| 
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| 
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| class BandcampIE(InfoExtractor):
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|     _VALID_URL = r'https?://.*?\.bandcamp\.com/track/(?P<title>[^/?#&]+)'
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|     _TESTS = [{
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|         'url': 'http://youtube-dl.bandcamp.com/track/youtube-dl-test-song',
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|         'md5': 'c557841d5e50261777a6585648adf439',
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|         'info_dict': {
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|             'id': '1812978515',
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|             'ext': 'mp3',
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|             'title': "youtube-dl  \"'/\\\u00e4\u21ad - youtube-dl test song \"'/\\\u00e4\u21ad",
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|             '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'
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|     }, {
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|         'url': 'http://benprunty.bandcamp.com/track/lanius-battle',
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|         'md5': '0369ace6b939f0927e62c67a1a8d9fa7',
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|         'info_dict': {
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|             'id': '2650410135',
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|             'ext': 'aiff',
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|             'title': 'Ben Prunty - Lanius (Battle)',
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|             'uploader': 'Ben Prunty',
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|         },
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|     }]
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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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|         thumbnail = self._html_search_meta('og:image', webpage, default=None)
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|         m_download = re.search(r'freeDownloadPage: "(.*?)"', webpage)
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|         if not m_download:
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|             m_trackinfo = re.search(r'trackinfo: (.+),\s*?\n', webpage)
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|             if m_trackinfo:
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|                 json_code = m_trackinfo.group(1)
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|                 data = json.loads(json_code)[0]
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|                 track_id = compat_str(data['id'])
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| 
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|                 if not data.get('file'):
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|                     raise ExtractorError('Not streamable', video_id=track_id, expected=True)
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| 
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|                 formats = []
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|                 for format_id, format_url in data['file'].items():
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|                     ext, abr_str = format_id.split('-', 1)
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|                     formats.append({
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|                         'format_id': format_id,
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|                         'url': self._proto_relative_url(format_url, 'http:'),
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|                         'ext': ext,
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|                         'vcodec': 'none',
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|                         'acodec': ext,
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|                         'abr': int_or_none(abr_str),
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|                     })
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| 
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|                 self._sort_formats(formats)
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| 
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|                 return {
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|                     'id': track_id,
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|                     'title': data['title'],
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|                     'thumbnail': thumbnail,
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|                     'formats': formats,
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|                     'duration': float_or_none(data.get('duration')),
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|                 }
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|             else:
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|                 raise ExtractorError('No free songs found')
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| 
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|         download_link = m_download.group(1)
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|         video_id = self._search_regex(
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|             r'(?ms)var TralbumData = .*?[{,]\s*id: (?P<id>\d+),?$',
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|             webpage, 'video id')
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| 
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|         download_webpage = self._download_webpage(
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|             download_link, video_id, 'Downloading free downloads page')
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| 
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|         blob = self._parse_json(
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|             self._search_regex(
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|                 r'data-blob=(["\'])(?P<blob>{.+?})\1', download_webpage,
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|                 'blob', group='blob'),
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|             video_id, transform_source=unescapeHTML)
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| 
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|         info = blob['digital_items'][0]
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| 
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|         downloads = info['downloads']
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|         track = info['title']
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| 
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|         artist = info.get('artist')
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|         title = '%s - %s' % (artist, track) if artist else track
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| 
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|         download_formats = {}
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|         for f in blob['download_formats']:
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|             name, ext = f.get('name'), f.get('file_extension')
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|             if all(isinstance(x, compat_str) for x in (name, ext)):
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|                 download_formats[name] = ext.strip('.')
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| 
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|         formats = []
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|         for format_id, f in downloads.items():
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|             format_url = f.get('url')
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|             if not format_url:
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|                 continue
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|             # Stat URL generation algorithm is reverse engineered from
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|             # download_*_bundle_*.js
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|             stat_url = update_url_query(
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|                 format_url.replace('/download/', '/statdownload/'), {
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|                     '.rand': int(time.time() * 1000 * random.random()),
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|                 })
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|             format_id = f.get('encoding_name') or format_id
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|             stat = self._download_json(
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|                 stat_url, video_id, 'Downloading %s JSON' % format_id,
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|                 transform_source=lambda s: s[s.index('{'):s.rindex('}') + 1],
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|                 fatal=False)
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|             if not stat:
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|                 continue
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|             retry_url = url_or_none(stat.get('retry_url'))
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|             if not retry_url:
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|                 continue
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|             formats.append({
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|                 'url': self._proto_relative_url(retry_url, 'http:'),
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|                 'ext': download_formats.get(format_id),
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|                 'format_id': format_id,
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|                 'format_note': f.get('description'),
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|                 'filesize': parse_filesize(f.get('size_mb')),
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|                 'vcodec': 'none',
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|             })
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|         self._sort_formats(formats)
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| 
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|         return {
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|             'id': video_id,
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|             'title': title,
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|             'thumbnail': info.get('thumb_url') or thumbnail,
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|             'uploader': info.get('artist'),
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|             'artist': artist,
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|             'track': track,
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|             'formats': formats,
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|         }
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| 
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| 
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| class BandcampAlbumIE(InfoExtractor):
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|     IE_NAME = 'Bandcamp:album'
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|     _VALID_URL = r'https?://(?:(?P<subdomain>[^.]+)\.)?bandcamp\.com(?:/album/(?P<album_id>[^/?#&]+))?'
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| 
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|     _TESTS = [{
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|         'url': 'http://blazo.bandcamp.com/album/jazz-format-mixtape-vol-1',
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|         'playlist': [
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|             {
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|                 'md5': '39bc1eded3476e927c724321ddf116cf',
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|                 'info_dict': {
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|                     'id': '1353101989',
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|                     'ext': 'mp3',
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|                     'title': 'Intro',
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|                 }
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|             },
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|             {
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|                 'md5': '1a2c32e2691474643e912cc6cd4bffaa',
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|                 'info_dict': {
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|                     'id': '38097443',
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|                     'ext': 'mp3',
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|                     'title': 'Kero One - Keep It Alive (Blazo remix)',
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|                 }
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|             },
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|         ],
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|         'info_dict': {
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|             'title': 'Jazz Format Mixtape vol.1',
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|             'id': 'jazz-format-mixtape-vol-1',
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|             'uploader_id': 'blazo',
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|         },
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|         'params': {
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|             'playlistend': 2
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|         },
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|         'skip': 'Bandcamp imposes download limits.'
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|     }, {
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|         'url': 'http://nightbringer.bandcamp.com/album/hierophany-of-the-open-grave',
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|         'info_dict': {
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|             'title': 'Hierophany of the Open Grave',
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|             'uploader_id': 'nightbringer',
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|             'id': 'hierophany-of-the-open-grave',
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|         },
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|         'playlist_mincount': 9,
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|     }, {
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|         'url': 'http://dotscale.bandcamp.com',
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|         'info_dict': {
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|             'title': 'Loom',
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|             'id': 'dotscale',
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|             'uploader_id': 'dotscale',
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|         },
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|         'playlist_mincount': 7,
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|     }, {
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|         # with escaped quote in title
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|         'url': 'https://jstrecords.bandcamp.com/album/entropy-ep',
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|         'info_dict': {
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|             'title': '"Entropy" EP',
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|             'uploader_id': 'jstrecords',
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|             'id': 'entropy-ep',
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|         },
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|         'playlist_mincount': 3,
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|     }, {
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|         # not all tracks have songs
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|         'url': 'https://insulters.bandcamp.com/album/we-are-the-plague',
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|         'info_dict': {
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|             'id': 'we-are-the-plague',
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|             'title': 'WE ARE THE PLAGUE',
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|             'uploader_id': 'insulters',
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|         },
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|         'playlist_count': 2,
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|     }]
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| 
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|     @classmethod
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|     def suitable(cls, url):
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|         return (False
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|                 if BandcampWeeklyIE.suitable(url) or BandcampIE.suitable(url)
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|                 else super(BandcampAlbumIE, cls).suitable(url))
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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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|         uploader_id = mobj.group('subdomain')
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|         album_id = mobj.group('album_id')
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|         playlist_id = album_id or uploader_id
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|         webpage = self._download_webpage(url, playlist_id)
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|         track_elements = re.findall(
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|             r'(?s)<div[^>]*>(.*?<a[^>]+href="([^"]+?)"[^>]+itemprop="url"[^>]*>.*?)</div>', webpage)
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|         if not track_elements:
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|             raise ExtractorError('The page doesn\'t contain any tracks')
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|         # Only tracks with duration info have songs
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|         entries = [
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|             self.url_result(
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|                 compat_urlparse.urljoin(url, t_path),
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|                 ie=BandcampIE.ie_key(),
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|                 video_title=self._search_regex(
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|                     r'<span\b[^>]+\bitemprop=["\']name["\'][^>]*>([^<]+)',
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|                     elem_content, 'track title', fatal=False))
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|             for elem_content, t_path in track_elements
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|             if self._html_search_meta('duration', elem_content, default=None)]
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| 
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|         title = self._html_search_regex(
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|             r'album_title\s*:\s*"((?:\\.|[^"\\])+?)"',
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|             webpage, 'title', fatal=False)
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|         if title:
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|             title = title.replace(r'\"', '"')
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|         return {
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|             '_type': 'playlist',
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|             'uploader_id': uploader_id,
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|             'id': playlist_id,
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|             'title': title,
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|             'entries': entries,
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|         }
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| 
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| 
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| class BandcampWeeklyIE(InfoExtractor):
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|     IE_NAME = 'Bandcamp:weekly'
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|     _VALID_URL = r'https?://(?:www\.)?bandcamp\.com/?\?(?:.*?&)?show=(?P<id>\d+)'
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|     _TESTS = [{
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|         'url': 'https://bandcamp.com/?show=224',
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|         'md5': 'b00df799c733cf7e0c567ed187dea0fd',
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|         'info_dict': {
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|             'id': '224',
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|             'ext': 'opus',
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|             'title': 'BC Weekly April 4th 2017 - Magic Moments',
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|             'description': 'md5:5d48150916e8e02d030623a48512c874',
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|             'duration': 5829.77,
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|             'release_date': '20170404',
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|             'series': 'Bandcamp Weekly',
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|             'episode': 'Magic Moments',
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|             'episode_number': 208,
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|             'episode_id': '224',
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|         }
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|     }, {
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|         'url': 'https://bandcamp.com/?blah/blah@&show=228',
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|         'only_matching': True
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|     }]
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| 
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|     def _real_extract(self, url):
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|         video_id = self._match_id(url)
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|         webpage = self._download_webpage(url, video_id)
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| 
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|         blob = self._parse_json(
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|             self._search_regex(
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|                 r'data-blob=(["\'])(?P<blob>{.+?})\1', webpage,
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|                 'blob', group='blob'),
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|             video_id, transform_source=unescapeHTML)
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| 
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|         show = blob['bcw_show']
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| 
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|         # This is desired because any invalid show id redirects to `bandcamp.com`
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|         # which happens to expose the latest Bandcamp Weekly episode.
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|         show_id = int_or_none(show.get('show_id')) or int_or_none(video_id)
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| 
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|         formats = []
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|         for format_id, format_url in show['audio_stream'].items():
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|             if not url_or_none(format_url):
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|                 continue
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|             for known_ext in KNOWN_EXTENSIONS:
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|                 if known_ext in format_id:
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|                     ext = known_ext
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|                     break
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|             else:
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|                 ext = None
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|             formats.append({
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|                 'format_id': format_id,
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|                 'url': format_url,
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|                 'ext': ext,
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|                 'vcodec': 'none',
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|             })
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|         self._sort_formats(formats)
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| 
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|         title = show.get('audio_title') or 'Bandcamp Weekly'
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|         subtitle = show.get('subtitle')
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|         if subtitle:
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|             title += ' - %s' % subtitle
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| 
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|         episode_number = None
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|         seq = blob.get('bcw_seq')
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| 
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|         if seq and isinstance(seq, list):
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|             try:
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|                 episode_number = next(
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|                     int_or_none(e.get('episode_number'))
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|                     for e in seq
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|                     if isinstance(e, dict) and int_or_none(e.get('id')) == show_id)
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|             except StopIteration:
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|                 pass
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| 
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|         return {
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|             'id': video_id,
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|             'title': title,
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|             'description': show.get('desc') or show.get('short_desc'),
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|             'duration': float_or_none(show.get('audio_duration')),
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|             'is_live': False,
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|             'release_date': unified_strdate(show.get('published_date')),
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|             'series': 'Bandcamp Weekly',
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|             'episode': show.get('subtitle'),
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|             'episode_number': episode_number,
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|             'episode_id': compat_str(video_id),
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|             'formats': formats
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|         }
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