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[nexx] Restore reverse engineered approach

This commit is contained in:
Sergey M․ 2018-03-08 03:16:21 +07:00
parent 6202f08e1b
commit d91dd0ce19
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@ -1,22 +1,27 @@
# coding: utf-8
from __future__ import unicode_literals
import hashlib
import random
import re
import time
from .common import InfoExtractor
from ..compat import compat_str
from ..utils import (
ExtractorError,
int_or_none,
parse_duration,
try_get,
urlencode_postdata,
)
class NexxIE(InfoExtractor):
_VALID_URL = r'''(?x)
(?:
https?://api\.nexx(?:\.cloud|cdn\.com)/v3/\d+/videos/byid/|
nexx:(?:\d+:)?|
https?://api\.nexx(?:\.cloud|cdn\.com)/v3/(?P<domain_id>\d+)/videos/byid/|
nexx:(?P<domain_id_s>\d+)?:|
https?://arc\.nexx\.cloud/api/video/
)
(?P<id>\d+)
@ -57,6 +62,21 @@ class NexxIE(InfoExtractor):
'params': {
'skip_download': True,
},
}, {
# does not work via arc
'url': 'nexx:741:1269984',
'md5': 'c714b5b238b2958dc8d5642addba6886',
'info_dict': {
'id': '1269984',
'ext': 'mp4',
'title': '1 TAG ohne KLO... wortwörtlich! 😑',
'alt_title': '1 TAG ohne KLO... wortwörtlich! 😑',
'description': 'md5:4604539793c49eda9443ab5c5b1d612f',
'thumbnail': r're:^https?://.*\.jpg$',
'duration': 607,
'timestamp': 1518614955,
'upload_date': '20180214',
},
}, {
'url': 'https://api.nexxcdn.com/v3/748/videos/byid/128907',
'only_matching': True,
@ -103,12 +123,99 @@ class NexxIE(InfoExtractor):
def _extract_url(webpage):
return NexxIE._extract_urls(webpage)[0]
def _real_extract(self, url):
video_id = self._match_id(url)
def _handle_error(self, response):
status = int_or_none(try_get(
response, lambda x: x['metadata']['status']) or 200)
if 200 <= status < 300:
return
raise ExtractorError(
'%s said: %s' % (self.IE_NAME, response['metadata']['errorhint']),
expected=True)
video = self._download_json(
def _call_api(self, domain_id, path, video_id, data=None, headers={}):
headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=UTF-8'
result = self._download_json(
'https://api.nexx.cloud/v3/%s/%s' % (domain_id, path), video_id,
'Downloading %s JSON' % path, data=urlencode_postdata(data),
headers=headers)
self._handle_error(result)
return result['result']
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
domain_id = mobj.group('domain_id') or mobj.group('domain_id_s')
video_id = mobj.group('id')
video = None
response = self._download_json(
'https://arc.nexx.cloud/api/video/%s.json' % video_id,
video_id)['result']
video_id, fatal=False)
if response and isinstance(response, dict):
result = response.get('result')
if result and isinstance(result, dict):
video = result
# not all videos work via arc, e.g. nexx:741:1269984
if not video:
# Reverse engineered from JS code (see getDeviceID function)
device_id = '%d:%d:%d%d' % (
random.randint(1, 4), int(time.time()),
random.randint(1e4, 99999), random.randint(1, 9))
result = self._call_api(domain_id, 'session/init', video_id, data={
'nxp_devh': device_id,
'nxp_userh': '',
'precid': '0',
'playlicense': '0',
'screenx': '1920',
'screeny': '1080',
'playerversion': '6.0.00',
'gateway': 'html5',
'adGateway': '',
'explicitlanguage': 'en-US',
'addTextTemplates': '1',
'addDomainData': '1',
'addAdModel': '1',
}, headers={
'X-Request-Enable-Auth-Fallback': '1',
})
cid = result['general']['cid']
# As described in [1] X-Request-Token generation algorithm is
# as follows:
# md5( operation + domain_id + domain_secret )
# where domain_secret is a static value that will be given by nexx.tv
# as per [1]. Here is how this "secret" is generated (reversed
# from _play.api.init function, search for clienttoken). So it's
# actually not static and not that much of a secret.
# 1. https://nexxtvstorage.blob.core.windows.net/files/201610/27.pdf
secret = result['device']['clienttoken'][int(device_id[0]):]
secret = secret[0:len(secret) - int(device_id[-1])]
op = 'byid'
# Reversed from JS code for _play.api.call function (search for
# X-Request-Token)
request_token = hashlib.md5(
''.join((op, domain_id, secret)).encode('utf-8')).hexdigest()
video = self._call_api(
domain_id, 'videos/%s/%s' % (op, video_id), video_id, data={
'additionalfields': 'language,channel,actors,studio,licenseby,slug,subtitle,teaser,description',
'addInteractionOptions': '1',
'addStatusDetails': '1',
'addStreamDetails': '1',
'addCaptions': '1',
'addScenes': '1',
'addHotSpots': '1',
'addBumpers': '1',
'captionFormat': 'data',
}, headers={
'X-Request-CID': cid,
'X-Request-Token': request_token,
})
general = video['general']
title = general['title']