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

   1 # coding: utf-8
   2 from __future__ import unicode_literals
   3
   4 import base64
   5 import binascii
   6 import json
   7 import os
   8 import random
   9
  10 from .common import InfoExtractor
  11 from ..aes import aes_cbc_decrypt
  12 from ..compat import (
  13     compat_b64decode,
  14     compat_ord,
  15 )
  16 from ..utils import (
  17     bytes_to_intlist,
  18     bytes_to_long,
  19     ExtractorError,
  20     float_or_none,
  21     intlist_to_bytes,
  22     long_to_bytes,
  23     pkcs1pad,
  24     strip_or_none,
  25     urljoin,
  26 )
  27
  28
  29 class ADNIE(InfoExtractor):
  30     IE_DESC = 'Anime Digital Network'
  31     _VALID_URL = r'https?://(?:www\.)?animedigitalnetwork\.fr/video/[^/]+/(?P<id>\d+)'
  32     _TEST = {
  33         'url': 'http://animedigitalnetwork.fr/video/blue-exorcist-kyoto-saga/7778-episode-1-debut-des-hostilites',
  34         'md5': 'e497370d847fd79d9d4c74be55575c7a',
  35         'info_dict': {
  36             'id': '7778',
  37             'ext': 'mp4',
  38             'title': 'Blue Exorcist - Kyôto Saga - Épisode 1',
  39             'description': 'md5:2f7b5aa76edbc1a7a92cedcda8a528d5',
  40         }
  41     }
  42     _BASE_URL = 'http://animedigitalnetwork.fr'
  43     _RSA_KEY = (0xc35ae1e4356b65a73b551493da94b8cb443491c0aa092a357a5aee57ffc14dda85326f42d716e539a34542a0d3f363adf16c5ec222d713d5997194030ee2e4f0d1fb328c01a81cf6868c090d50de8e169c6b13d1675b9eeed1cbc51e1fffca9b38af07f37abd790924cd3bee59d0257cfda4fe5f3f0534877e21ce5821447d1b, 65537)
  44     _POS_ALIGN_MAP = {
  45         'start': 1,
  46         'end': 3,
  47     }
  48     _LINE_ALIGN_MAP = {
  49         'middle': 8,
  50         'end': 4,
  51     }
  52
  53     @staticmethod
  54     def _ass_subtitles_timecode(seconds):
  55         return '%01d:%02d:%02d.%02d' % (seconds / 3600, (seconds % 3600) / 60, seconds % 60, (seconds % 1) * 100)
  56
  57     def _get_subtitles(self, sub_path, video_id):
  58         if not sub_path:
  59             return None
  60
  61         enc_subtitles = self._download_webpage(
  62             urljoin(self._BASE_URL, sub_path),
  63             video_id, 'Downloading subtitles data', fatal=False)
  64         if not enc_subtitles:
  65             return None
  66
  67         # http://animedigitalnetwork.fr/components/com_vodvideo/videojs/adn-vjs.min.js
  68         dec_subtitles = intlist_to_bytes(aes_cbc_decrypt(
  69             bytes_to_intlist(compat_b64decode(enc_subtitles[24:])),
  70             bytes_to_intlist(binascii.unhexlify(self._K + '083db5aebd9353b4')),
  71             bytes_to_intlist(compat_b64decode(enc_subtitles[:24]))
  72         ))
  73         subtitles_json = self._parse_json(
  74             dec_subtitles[:-compat_ord(dec_subtitles[-1])].decode(),
  75             None, fatal=False)
  76         if not subtitles_json:
  77             return None
  78
  79         subtitles = {}
  80         for sub_lang, sub in subtitles_json.items():
  81             ssa = '''[Script Info]
  82 ScriptType:V4.00
  83 [V4 Styles]
  84 Format:Name,Fontname,Fontsize,PrimaryColour,Bold,BorderStyle,Outline,Alignment,MarginL,MarginR,MarginV
  85 Style:Default,Arial,18,16777215,-1,1,1,2,20,20,20
  86 [Events]
  87 Format:Marked,Start,End,Style,Text'''
  88             for current in sub:
  89                 start, end, text, line_align, position_align = (
  90                     float_or_none(current.get('startTime')),
  91                     float_or_none(current.get('endTime')),
  92                     current.get('text'), current.get('lineAlign'),
  93                     current.get('positionAlign'))
  94                 if start is None or end is None or text is None:
  95                     continue
  96                 alignment = self._POS_ALIGN_MAP.get(position_align, 2) + self._LINE_ALIGN_MAP.get(line_align, 0)
  97                 ssa += os.linesep + 'Dialogue:Marked=0,%s,%s,Default,%s%s' % (
  98                     self._ass_subtitles_timecode(start),
  99                     self._ass_subtitles_timecode(end),
 100                     '{\\a%d}' % alignment if alignment != 2 else '',
 101                     text.replace('\n', '\\N').replace('<i>', '{\\i1}').replace('</i>', '{\\i0}'))
 102
 103             if sub_lang == 'vostf':
 104                 sub_lang = 'fr'
 105             subtitles.setdefault(sub_lang, []).extend([{
 106                 'ext': 'json',
 107                 'data': json.dumps(sub),
 108             }, {
 109                 'ext': 'ssa',
 110                 'data': ssa,
 111             }])
 112         return subtitles
 113
 114     def _real_extract(self, url):
 115         video_id = self._match_id(url)
 116         webpage = self._download_webpage(url, video_id)
 117         player_config = self._parse_json(self._search_regex(
 118             r'playerConfig\s*=\s*({.+});', webpage,
 119             'player config', default='{}'), video_id, fatal=False)
 120         if not player_config:
 121             config_url = urljoin(self._BASE_URL, self._search_regex(
 122                 r'(?:id="player"|class="[^"]*adn-player-container[^"]*")[^>]+data-url="([^"]+)"',
 123                 webpage, 'config url'))
 124             player_config = self._download_json(
 125                 config_url, video_id,
 126                 'Downloading player config JSON metadata')['player']
 127
 128         video_info = {}
 129         video_info_str = self._search_regex(
 130             r'videoInfo\s*=\s*({.+});', webpage,
 131             'video info', fatal=False)
 132         if video_info_str:
 133             video_info = self._parse_json(
 134                 video_info_str, video_id, fatal=False) or {}
 135
 136         options = player_config.get('options') or {}
 137         metas = options.get('metas') or {}
 138         links = player_config.get('links') or {}
 139         sub_path = player_config.get('subtitles')
 140         error = None
 141         if not links:
 142             links_url = player_config.get('linksurl') or options['videoUrl']
 143             token = options['token']
 144             self._K = ''.join([random.choice('0123456789abcdef') for _ in range(16)])
 145             message = bytes_to_intlist(json.dumps({
 146                 'k': self._K,
 147                 'e': 60,
 148                 't': token,
 149             }))
 150             padded_message = intlist_to_bytes(pkcs1pad(message, 128))
 151             n, e = self._RSA_KEY
 152             encrypted_message = long_to_bytes(pow(bytes_to_long(padded_message), e, n))
 153             authorization = base64.b64encode(encrypted_message).decode()
 154             links_data = self._download_json(
 155                 urljoin(self._BASE_URL, links_url), video_id,
 156                 'Downloading links JSON metadata', headers={
 157                     'Authorization': 'Bearer ' + authorization,
 158                 })
 159             links = links_data.get('links') or {}
 160             metas = metas or links_data.get('meta') or {}
 161             sub_path = sub_path or links_data.get('subtitles') or \
 162                 'index.php?option=com_vodapi&task=subtitles.getJSON&format=json&id=' + video_id
 163             sub_path += '&token=' + token
 164             error = links_data.get('error')
 165         title = metas.get('title') or video_info['title']
 166
 167         formats = []
 168         for format_id, qualities in links.items():
 169             if not isinstance(qualities, dict):
 170                 continue
 171             for quality, load_balancer_url in qualities.items():
 172                 load_balancer_data = self._download_json(
 173                     load_balancer_url, video_id,
 174                     'Downloading %s %s JSON metadata' % (format_id, quality),
 175                     fatal=False) or {}
 176                 m3u8_url = load_balancer_data.get('location')
 177                 if not m3u8_url:
 178                     continue
 179                 m3u8_formats = self._extract_m3u8_formats(
 180                     m3u8_url, video_id, 'mp4', 'm3u8_native',
 181                     m3u8_id=format_id, fatal=False)
 182                 if format_id == 'vf':
 183                     for f in m3u8_formats:
 184                         f['language'] = 'fr'
 185                 formats.extend(m3u8_formats)
 186         if not error:
 187             error = options.get('error')
 188         if not formats and error:
 189             raise ExtractorError('%s said: %s' % (self.IE_NAME, error), expected=True)
 190         self._sort_formats(formats)
 191
 192         return {
 193             'id': video_id,
 194             'title': title,
 195             'description': strip_or_none(metas.get('summary') or video_info.get('resume')),
 196             'thumbnail': video_info.get('image'),
 197             'formats': formats,
 198             'subtitles': self.extract_subtitles(sub_path, video_id),
 199             'episode': metas.get('subtitle') or video_info.get('videoTitle'),
 200             'series': video_info.get('playlistTitle'),
 201         }