youtube-dl

Another place where youtube-dl lives on
git clone git://git.oshgnacknak.de/youtube-dl.git
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nexx.py (17106B)


      1 # coding: utf-8
      2 from __future__ import unicode_literals
      3 
      4 import hashlib
      5 import random
      6 import re
      7 import time
      8 
      9 from .common import InfoExtractor
     10 from ..compat import compat_str
     11 from ..utils import (
     12     ExtractorError,
     13     int_or_none,
     14     parse_duration,
     15     try_get,
     16     urlencode_postdata,
     17 )
     18 
     19 
     20 class NexxIE(InfoExtractor):
     21     _VALID_URL = r'''(?x)
     22                         (?:
     23                             https?://api\.nexx(?:\.cloud|cdn\.com)/v3/(?P<domain_id>\d+)/videos/byid/|
     24                             nexx:(?:(?P<domain_id_s>\d+):)?|
     25                             https?://arc\.nexx\.cloud/api/video/
     26                         )
     27                         (?P<id>\d+)
     28                     '''
     29     _TESTS = [{
     30         # movie
     31         'url': 'https://api.nexx.cloud/v3/748/videos/byid/128907',
     32         'md5': '31899fd683de49ad46f4ee67e53e83fe',
     33         'info_dict': {
     34             'id': '128907',
     35             'ext': 'mp4',
     36             'title': 'Stiftung Warentest',
     37             'alt_title': 'Wie ein Test abläuft',
     38             'description': 'md5:d1ddb1ef63de721132abd38639cc2fd2',
     39             'creator': 'SPIEGEL TV',
     40             'thumbnail': r're:^https?://.*\.jpg$',
     41             'duration': 2509,
     42             'timestamp': 1384264416,
     43             'upload_date': '20131112',
     44         },
     45     }, {
     46         # episode
     47         'url': 'https://api.nexx.cloud/v3/741/videos/byid/247858',
     48         'info_dict': {
     49             'id': '247858',
     50             'ext': 'mp4',
     51             'title': 'Return of the Golden Child (OV)',
     52             'description': 'md5:5d969537509a92b733de21bae249dc63',
     53             'release_year': 2017,
     54             'thumbnail': r're:^https?://.*\.jpg$',
     55             'duration': 1397,
     56             'timestamp': 1495033267,
     57             'upload_date': '20170517',
     58             'episode_number': 2,
     59             'season_number': 2,
     60         },
     61         'params': {
     62             'skip_download': True,
     63         },
     64         'skip': 'HTTP Error 404: Not Found',
     65     }, {
     66         # does not work via arc
     67         'url': 'nexx:741:1269984',
     68         'md5': 'c714b5b238b2958dc8d5642addba6886',
     69         'info_dict': {
     70             'id': '1269984',
     71             'ext': 'mp4',
     72             'title': '1 TAG ohne KLO... wortwörtlich! 😑',
     73             'alt_title': '1 TAG ohne KLO... wortwörtlich! 😑',
     74             'thumbnail': r're:^https?://.*\.jpg$',
     75             'duration': 607,
     76             'timestamp': 1518614955,
     77             'upload_date': '20180214',
     78         },
     79     }, {
     80         # free cdn from http://www.spiegel.de/video/eifel-zoo-aufregung-um-ausgebrochene-raubtiere-video-99018031.html
     81         'url': 'nexx:747:1533779',
     82         'md5': '6bf6883912b82b7069fb86c2297e9893',
     83         'info_dict': {
     84             'id': '1533779',
     85             'ext': 'mp4',
     86             'title': 'Aufregung um ausgebrochene Raubtiere',
     87             'alt_title': 'Eifel-Zoo',
     88             'description': 'md5:f21375c91c74ad741dcb164c427999d2',
     89             'thumbnail': r're:^https?://.*\.jpg$',
     90             'duration': 111,
     91             'timestamp': 1527874460,
     92             'upload_date': '20180601',
     93         },
     94     }, {
     95         'url': 'https://api.nexxcdn.com/v3/748/videos/byid/128907',
     96         'only_matching': True,
     97     }, {
     98         'url': 'nexx:748:128907',
     99         'only_matching': True,
    100     }, {
    101         'url': 'nexx:128907',
    102         'only_matching': True,
    103     }, {
    104         'url': 'https://arc.nexx.cloud/api/video/128907.json',
    105         'only_matching': True,
    106     }]
    107 
    108     @staticmethod
    109     def _extract_domain_id(webpage):
    110         mobj = re.search(
    111             r'<script\b[^>]+\bsrc=["\'](?:https?:)?//(?:require|arc)\.nexx(?:\.cloud|cdn\.com)/(?:sdk/)?(?P<id>\d+)',
    112             webpage)
    113         return mobj.group('id') if mobj else None
    114 
    115     @staticmethod
    116     def _extract_urls(webpage):
    117         # Reference:
    118         # 1. https://nx-s.akamaized.net/files/201510/44.pdf
    119 
    120         entries = []
    121 
    122         # JavaScript Integration
    123         domain_id = NexxIE._extract_domain_id(webpage)
    124         if domain_id:
    125             for video_id in re.findall(
    126                     r'(?is)onPLAYReady.+?_play\.(?:init|(?:control\.)?addPlayer)\s*\(.+?\s*,\s*["\']?(\d+)',
    127                     webpage):
    128                 entries.append(
    129                     'https://api.nexx.cloud/v3/%s/videos/byid/%s'
    130                     % (domain_id, video_id))
    131 
    132         # TODO: support more embed formats
    133 
    134         return entries
    135 
    136     @staticmethod
    137     def _extract_url(webpage):
    138         return NexxIE._extract_urls(webpage)[0]
    139 
    140     def _handle_error(self, response):
    141         status = int_or_none(try_get(
    142             response, lambda x: x['metadata']['status']) or 200)
    143         if 200 <= status < 300:
    144             return
    145         raise ExtractorError(
    146             '%s said: %s' % (self.IE_NAME, response['metadata']['errorhint']),
    147             expected=True)
    148 
    149     def _call_api(self, domain_id, path, video_id, data=None, headers={}):
    150         headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=UTF-8'
    151         result = self._download_json(
    152             'https://api.nexx.cloud/v3/%s/%s' % (domain_id, path), video_id,
    153             'Downloading %s JSON' % path, data=urlencode_postdata(data),
    154             headers=headers)
    155         self._handle_error(result)
    156         return result['result']
    157 
    158     def _extract_free_formats(self, video, video_id):
    159         stream_data = video['streamdata']
    160         cdn = stream_data['cdnType']
    161         assert cdn == 'free'
    162 
    163         hash = video['general']['hash']
    164 
    165         ps = compat_str(stream_data['originalDomain'])
    166         if stream_data['applyFolderHierarchy'] == 1:
    167             s = ('%04d' % int(video_id))[::-1]
    168             ps += '/%s/%s' % (s[0:2], s[2:4])
    169         ps += '/%s/%s_' % (video_id, hash)
    170 
    171         t = 'http://%s' + ps
    172         fd = stream_data['azureFileDistribution'].split(',')
    173         cdn_provider = stream_data['cdnProvider']
    174 
    175         def p0(p):
    176             return '_%s' % p if stream_data['applyAzureStructure'] == 1 else ''
    177 
    178         formats = []
    179         if cdn_provider == 'ak':
    180             t += ','
    181             for i in fd:
    182                 p = i.split(':')
    183                 t += p[1] + p0(int(p[0])) + ','
    184             t += '.mp4.csmil/master.%s'
    185         elif cdn_provider == 'ce':
    186             k = t.split('/')
    187             h = k.pop()
    188             http_base = t = '/'.join(k)
    189             http_base = http_base % stream_data['cdnPathHTTP']
    190             t += '/asset.ism/manifest.%s?dcp_ver=aos4&videostream='
    191             for i in fd:
    192                 p = i.split(':')
    193                 tbr = int(p[0])
    194                 filename = '%s%s%s.mp4' % (h, p[1], p0(tbr))
    195                 f = {
    196                     'url': http_base + '/' + filename,
    197                     'format_id': '%s-http-%d' % (cdn, tbr),
    198                     'tbr': tbr,
    199                 }
    200                 width_height = p[1].split('x')
    201                 if len(width_height) == 2:
    202                     f.update({
    203                         'width': int_or_none(width_height[0]),
    204                         'height': int_or_none(width_height[1]),
    205                     })
    206                 formats.append(f)
    207                 a = filename + ':%s' % (tbr * 1000)
    208                 t += a + ','
    209             t = t[:-1] + '&audiostream=' + a.split(':')[0]
    210         else:
    211             assert False
    212 
    213         if cdn_provider == 'ce':
    214             formats.extend(self._extract_mpd_formats(
    215                 t % (stream_data['cdnPathDASH'], 'mpd'), video_id,
    216                 mpd_id='%s-dash' % cdn, fatal=False))
    217         formats.extend(self._extract_m3u8_formats(
    218             t % (stream_data['cdnPathHLS'], 'm3u8'), video_id, 'mp4',
    219             entry_protocol='m3u8_native', m3u8_id='%s-hls' % cdn, fatal=False))
    220 
    221         return formats
    222 
    223     def _extract_azure_formats(self, video, video_id):
    224         stream_data = video['streamdata']
    225         cdn = stream_data['cdnType']
    226         assert cdn == 'azure'
    227 
    228         azure_locator = stream_data['azureLocator']
    229 
    230         def get_cdn_shield_base(shield_type='', static=False):
    231             for secure in ('', 's'):
    232                 cdn_shield = stream_data.get('cdnShield%sHTTP%s' % (shield_type, secure.upper()))
    233                 if cdn_shield:
    234                     return 'http%s://%s' % (secure, cdn_shield)
    235             else:
    236                 if 'fb' in stream_data['azureAccount']:
    237                     prefix = 'df' if static else 'f'
    238                 else:
    239                     prefix = 'd' if static else 'p'
    240                 account = int(stream_data['azureAccount'].replace('nexxplayplus', '').replace('nexxplayfb', ''))
    241                 return 'http://nx-%s%02d.akamaized.net/' % (prefix, account)
    242 
    243         language = video['general'].get('language_raw') or ''
    244 
    245         azure_stream_base = get_cdn_shield_base()
    246         is_ml = ',' in language
    247         azure_manifest_url = '%s%s/%s_src%s.ism/Manifest' % (
    248             azure_stream_base, azure_locator, video_id, ('_manifest' if is_ml else '')) + '%s'
    249 
    250         protection_token = try_get(
    251             video, lambda x: x['protectiondata']['token'], compat_str)
    252         if protection_token:
    253             azure_manifest_url += '?hdnts=%s' % protection_token
    254 
    255         formats = self._extract_m3u8_formats(
    256             azure_manifest_url % '(format=m3u8-aapl)',
    257             video_id, 'mp4', 'm3u8_native',
    258             m3u8_id='%s-hls' % cdn, fatal=False)
    259         formats.extend(self._extract_mpd_formats(
    260             azure_manifest_url % '(format=mpd-time-csf)',
    261             video_id, mpd_id='%s-dash' % cdn, fatal=False))
    262         formats.extend(self._extract_ism_formats(
    263             azure_manifest_url % '', video_id, ism_id='%s-mss' % cdn, fatal=False))
    264 
    265         azure_progressive_base = get_cdn_shield_base('Prog', True)
    266         azure_file_distribution = stream_data.get('azureFileDistribution')
    267         if azure_file_distribution:
    268             fds = azure_file_distribution.split(',')
    269             if fds:
    270                 for fd in fds:
    271                     ss = fd.split(':')
    272                     if len(ss) == 2:
    273                         tbr = int_or_none(ss[0])
    274                         if tbr:
    275                             f = {
    276                                 'url': '%s%s/%s_src_%s_%d.mp4' % (
    277                                     azure_progressive_base, azure_locator, video_id, ss[1], tbr),
    278                                 'format_id': '%s-http-%d' % (cdn, tbr),
    279                                 'tbr': tbr,
    280                             }
    281                             width_height = ss[1].split('x')
    282                             if len(width_height) == 2:
    283                                 f.update({
    284                                     'width': int_or_none(width_height[0]),
    285                                     'height': int_or_none(width_height[1]),
    286                                 })
    287                             formats.append(f)
    288 
    289         return formats
    290 
    291     def _real_extract(self, url):
    292         mobj = re.match(self._VALID_URL, url)
    293         domain_id = mobj.group('domain_id') or mobj.group('domain_id_s')
    294         video_id = mobj.group('id')
    295 
    296         video = None
    297 
    298         def find_video(result):
    299             if isinstance(result, dict):
    300                 return result
    301             elif isinstance(result, list):
    302                 vid = int(video_id)
    303                 for v in result:
    304                     if try_get(v, lambda x: x['general']['ID'], int) == vid:
    305                         return v
    306             return None
    307 
    308         response = self._download_json(
    309             'https://arc.nexx.cloud/api/video/%s.json' % video_id,
    310             video_id, fatal=False)
    311         if response and isinstance(response, dict):
    312             result = response.get('result')
    313             if result:
    314                 video = find_video(result)
    315 
    316         # not all videos work via arc, e.g. nexx:741:1269984
    317         if not video:
    318             # Reverse engineered from JS code (see getDeviceID function)
    319             device_id = '%d:%d:%d%d' % (
    320                 random.randint(1, 4), int(time.time()),
    321                 random.randint(1e4, 99999), random.randint(1, 9))
    322 
    323             result = self._call_api(domain_id, 'session/init', video_id, data={
    324                 'nxp_devh': device_id,
    325                 'nxp_userh': '',
    326                 'precid': '0',
    327                 'playlicense': '0',
    328                 'screenx': '1920',
    329                 'screeny': '1080',
    330                 'playerversion': '6.0.00',
    331                 'gateway': 'html5',
    332                 'adGateway': '',
    333                 'explicitlanguage': 'en-US',
    334                 'addTextTemplates': '1',
    335                 'addDomainData': '1',
    336                 'addAdModel': '1',
    337             }, headers={
    338                 'X-Request-Enable-Auth-Fallback': '1',
    339             })
    340 
    341             cid = result['general']['cid']
    342 
    343             # As described in [1] X-Request-Token generation algorithm is
    344             # as follows:
    345             #   md5( operation + domain_id + domain_secret )
    346             # where domain_secret is a static value that will be given by nexx.tv
    347             # as per [1]. Here is how this "secret" is generated (reversed
    348             # from _play.api.init function, search for clienttoken). So it's
    349             # actually not static and not that much of a secret.
    350             # 1. https://nexxtvstorage.blob.core.windows.net/files/201610/27.pdf
    351             secret = result['device']['clienttoken'][int(device_id[0]):]
    352             secret = secret[0:len(secret) - int(device_id[-1])]
    353 
    354             op = 'byid'
    355 
    356             # Reversed from JS code for _play.api.call function (search for
    357             # X-Request-Token)
    358             request_token = hashlib.md5(
    359                 ''.join((op, domain_id, secret)).encode('utf-8')).hexdigest()
    360 
    361             result = self._call_api(
    362                 domain_id, 'videos/%s/%s' % (op, video_id), video_id, data={
    363                     'additionalfields': 'language,channel,actors,studio,licenseby,slug,subtitle,teaser,description',
    364                     'addInteractionOptions': '1',
    365                     'addStatusDetails': '1',
    366                     'addStreamDetails': '1',
    367                     'addCaptions': '1',
    368                     'addScenes': '1',
    369                     'addHotSpots': '1',
    370                     'addBumpers': '1',
    371                     'captionFormat': 'data',
    372                 }, headers={
    373                     'X-Request-CID': cid,
    374                     'X-Request-Token': request_token,
    375                 })
    376             video = find_video(result)
    377 
    378         general = video['general']
    379         title = general['title']
    380 
    381         cdn = video['streamdata']['cdnType']
    382 
    383         if cdn == 'azure':
    384             formats = self._extract_azure_formats(video, video_id)
    385         elif cdn == 'free':
    386             formats = self._extract_free_formats(video, video_id)
    387         else:
    388             # TODO: reverse more cdns
    389             assert False
    390 
    391         self._sort_formats(formats)
    392 
    393         return {
    394             'id': video_id,
    395             'title': title,
    396             'alt_title': general.get('subtitle'),
    397             'description': general.get('description'),
    398             'release_year': int_or_none(general.get('year')),
    399             'creator': general.get('studio') or general.get('studio_adref'),
    400             'thumbnail': try_get(
    401                 video, lambda x: x['imagedata']['thumb'], compat_str),
    402             'duration': parse_duration(general.get('runtime')),
    403             'timestamp': int_or_none(general.get('uploaded')),
    404             'episode_number': int_or_none(try_get(
    405                 video, lambda x: x['episodedata']['episode'])),
    406             'season_number': int_or_none(try_get(
    407                 video, lambda x: x['episodedata']['season'])),
    408             'formats': formats,
    409         }
    410 
    411 
    412 class NexxEmbedIE(InfoExtractor):
    413     _VALID_URL = r'https?://embed\.nexx(?:\.cloud|cdn\.com)/\d+/(?:video/)?(?P<id>[^/?#&]+)'
    414     _TESTS = [{
    415         'url': 'http://embed.nexx.cloud/748/KC1614647Z27Y7T?autoplay=1',
    416         'md5': '16746bfc28c42049492385c989b26c4a',
    417         'info_dict': {
    418             'id': '161464',
    419             'ext': 'mp4',
    420             'title': 'Nervenkitzel Achterbahn',
    421             'alt_title': 'Karussellbauer in Deutschland',
    422             'description': 'md5:ffe7b1cc59a01f585e0569949aef73cc',
    423             'creator': 'SPIEGEL TV',
    424             'thumbnail': r're:^https?://.*\.jpg$',
    425             'duration': 2761,
    426             'timestamp': 1394021479,
    427             'upload_date': '20140305',
    428         },
    429         'params': {
    430             'format': 'bestvideo',
    431             'skip_download': True,
    432         },
    433     }, {
    434         'url': 'https://embed.nexx.cloud/11888/video/DSRTO7UVOX06S7',
    435         'only_matching': True,
    436     }]
    437 
    438     @staticmethod
    439     def _extract_urls(webpage):
    440         # Reference:
    441         # 1. https://nx-s.akamaized.net/files/201510/44.pdf
    442 
    443         # iFrame Embed Integration
    444         return [mobj.group('url') for mobj in re.finditer(
    445             r'<iframe[^>]+\bsrc=(["\'])(?P<url>(?:https?:)?//embed\.nexx(?:\.cloud|cdn\.com)/\d+/(?:(?!\1).)+)\1',
    446             webpage)]
    447 
    448     def _real_extract(self, url):
    449         embed_id = self._match_id(url)
    450 
    451         webpage = self._download_webpage(url, embed_id)
    452 
    453         return self.url_result(NexxIE._extract_url(webpage), ie=NexxIE.ie_key())