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[mixcloud] Extract decrypt key

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Sergey M․ 2017-08-14 22:39:05 +07:00
parent 16393d6535
commit da20951a57
No known key found for this signature in database
GPG key ID: 2C393E0F18A9236D
1 changed files with 25 additions and 7 deletions
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32
youtube_dl/extractor/mixcloud.py
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@ -9,6 +9,7 @@ from .common import InfoExtractor
from ..compat import ( from ..compat import (
compat_chr, compat_chr,
compat_ord, compat_ord,
compat_str,
compat_urllib_parse_unquote, compat_urllib_parse_unquote,
compat_urlparse, compat_urlparse,
) )
@ -53,15 +54,18 @@ class MixcloudIE(InfoExtractor):
'only_matching': True, 'only_matching': True,
}] }]
_keys = [
'return { requestAnimationFrame: function(callback) { callback(); }, innerHeight: 500 };',
'pleasedontdownloadourmusictheartistswontgetpaid',
'window.addEventListener = window.addEventListener || function() {};',
'(function() { return new Date().toLocaleDateString(); })()'
]
_current_key = None
# See https://www.mixcloud.com/media/js2/www_js_2.9e23256562c080482435196ca3975ab5.js # See https://www.mixcloud.com/media/js2/www_js_2.9e23256562c080482435196ca3975ab5.js
def _decrypt_play_info(self, play_info, video_id): def _decrypt_play_info(self, play_info, video_id):
KEYS = (
'pleasedontdownloadourmusictheartistswontgetpaid',
'window.addEventListener = window.addEventListener || function() {};',
'(function() { return new Date().toLocaleDateString(); })()',
)
play_info = base64.b64decode(play_info.encode('ascii')) play_info = base64.b64decode(play_info.encode('ascii'))
for num, key in enumerate(KEYS, start=1): for num, key in enumerate(self._keys, start=1):
try: try:
return self._parse_json( return self._parse_json(
''.join([ ''.join([
@ -69,7 +73,7 @@ class MixcloudIE(InfoExtractor):
for idx, ch in enumerate(play_info)]), for idx, ch in enumerate(play_info)]),
video_id) video_id)
except ExtractorError: except ExtractorError:
if num == len(KEYS): if num == len(self._keys):
raise raise
def _real_extract(self, url): def _real_extract(self, url):
@ -80,6 +84,20 @@ class MixcloudIE(InfoExtractor):
webpage = self._download_webpage(url, track_id) webpage = self._download_webpage(url, track_id)
if not self._current_key:
js_url = self._search_regex(
r'<script[^>]+\bsrc=["\"](https://(?:www\.)?mixcloud\.com/media/js2/www_js_4\.[^>]+\.js)',
webpage, 'js url', default=None)
if js_url:
js = self._download_webpage(js_url, track_id, fatal=False)
if js:
key = self._search_regex(
r'player\s*:\s*{.*?\bvalue\s*:\s*(["\'])(?P<key>(?:(?!\1).)+)\1',
js, 'key', default=None, group='key')
if key and isinstance(key, compat_str):
self._keys.insert(0, key)
self._current_key = key
message = self._html_search_regex( message = self._html_search_regex(
r'(?s)<div[^>]+class="global-message cloudcast-disabled-notice-light"[^>]*>(.+?)<(?:a|/div)', r'(?s)<div[^>]+class="global-message cloudcast-disabled-notice-light"[^>]*>(.+?)<(?:a|/div)',
webpage, 'error message', default=None) webpage, 'error message', default=None)