mirror of
https://github.com/ytdl-org/youtube-dl.git
synced 2024-11-22 02:01:50 +00:00
[mixcloud] Fix extraction (closes #14088)
This commit is contained in:
Tatsuyuki Ishi
Sergey M․
parent
8c2895305d
commit
2384f5a64e
2 changed files with 109 additions and 58 deletions
|
|
@ -6,6 +6,7 @@ import collections
|
|||
import email
|
||||
import getpass
|
||||
import io
|
||||
import itertools
|
||||
import optparse
|
||||
import os
|
||||
import re
|
||||
|
|
@ -15,7 +16,6 @@ import socket
|
|||
import struct
|
||||
import subprocess
|
||||
import sys
|
||||
import itertools
|
||||
import xml.etree.ElementTree
|
||||
|
||||
|
||||
|
|
@ -2898,6 +2898,13 @@ else:
|
|||
compat_struct_pack = struct.pack
|
||||
compat_struct_unpack = struct.unpack
|
||||
|
||||
try:
|
||||
from future_builtins import zip as compat_zip
|
||||
except ImportError: # not 2.6+ or is 3.x
|
||||
try:
|
||||
from itertools import izip as compat_zip # < 2.5 or 3.x
|
||||
except ImportError:
|
||||
compat_zip = zip
|
||||
|
||||
__all__ = [
|
||||
'compat_HTMLParseError',
|
||||
|
|
@ -2948,5 +2955,6 @@ __all__ = [
|
|||
'compat_urlretrieve',
|
||||
'compat_xml_parse_error',
|
||||
'compat_xpath',
|
||||
'compat_zip',
|
||||
'workaround_optparse_bug9161',
|
||||
]
|
||||
|
|
|
|||
|
|
@ -9,16 +9,16 @@ from .common import InfoExtractor
|
|||
from ..compat import (
|
||||
compat_chr,
|
||||
compat_ord,
|
||||
compat_str,
|
||||
compat_urllib_parse_unquote,
|
||||
compat_urlparse,
|
||||
compat_zip
|
||||
)
|
||||
from ..utils import (
|
||||
clean_html,
|
||||
ExtractorError,
|
||||
OnDemandPagedList,
|
||||
str_to_int,
|
||||
)
|
||||
try_get)
|
||||
|
||||
|
||||
class MixcloudIE(InfoExtractor):
|
||||
|
|
@ -54,27 +54,19 @@ class MixcloudIE(InfoExtractor):
|
|||
'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
|
||||
@staticmethod
|
||||
def _decrypt_xor_cipher(key, ciphertext):
|
||||
"""Encrypt/Decrypt XOR cipher. Both ways are possible because it's XOR."""
|
||||
return ''.join([
|
||||
compat_chr(compat_ord(ch) ^ compat_ord(k))
|
||||
for ch, k in compat_zip(ciphertext, itertools.cycle(key))])
|
||||
|
||||
# See https://www.mixcloud.com/media/js2/www_js_2.9e23256562c080482435196ca3975ab5.js
|
||||
def _decrypt_play_info(self, play_info, video_id):
|
||||
play_info = base64.b64decode(play_info.encode('ascii'))
|
||||
for num, key in enumerate(self._keys, start=1):
|
||||
try:
|
||||
return self._parse_json(
|
||||
''.join([
|
||||
compat_chr(compat_ord(ch) ^ compat_ord(key[idx % len(key)]))
|
||||
for idx, ch in enumerate(play_info)]),
|
||||
video_id)
|
||||
except ExtractorError:
|
||||
if num == len(self._keys):
|
||||
raise
|
||||
@staticmethod
|
||||
def _decrypt_and_extend(stream_info, url_key, getter, key, formats):
|
||||
maybe_url = stream_info.get(url_key)
|
||||
if maybe_url is not None:
|
||||
decrypted = MixcloudIE._decrypt_xor_cipher(key, base64.b64decode(maybe_url))
|
||||
formats.extend(getter(decrypted))
|
||||
|
||||
def _real_extract(self, url):
|
||||
mobj = re.match(self._VALID_URL, url)
|
||||
|
|
@ -84,35 +76,66 @@ class MixcloudIE(InfoExtractor):
|
|||
|
||||
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_RE_TEMPLATE = r'player\s*:\s*{.*?\b%s\s*:\s*(["\'])(?P<key>(?:(?!\1).)+)\1'
|
||||
for key_name in ('value', 'key_value', 'key_value.*?', '.*?value.*?'):
|
||||
key = self._search_regex(
|
||||
KEY_RE_TEMPLATE % key_name, js, 'key',
|
||||
default=None, group='key')
|
||||
if key and isinstance(key, compat_str):
|
||||
self._keys.insert(0, key)
|
||||
self._current_key = key
|
||||
# Legacy path
|
||||
encrypted_play_info = self._search_regex(
|
||||
r'm-play-info="([^"]+)"', webpage, 'play info', default=None)
|
||||
|
||||
if encrypted_play_info is not None:
|
||||
# Decode
|
||||
encrypted_play_info = base64.b64decode(encrypted_play_info)
|
||||
else:
|
||||
# New path
|
||||
full_info_json = self._parse_json(self._html_search_regex(
|
||||
r'<script id="relay-data" type="text/x-mixcloud">([^<]+)</script>', webpage, 'play info'), 'play info')
|
||||
for item in full_info_json:
|
||||
item_data = try_get(item, lambda x: x['cloudcast']['data']['cloudcastLookup'])
|
||||
if try_get(item_data, lambda x: x['streamInfo']['url']):
|
||||
info_json = item_data
|
||||
break
|
||||
else:
|
||||
raise ExtractorError('Failed to extract matching stream info')
|
||||
|
||||
message = self._html_search_regex(
|
||||
r'(?s)<div[^>]+class="global-message cloudcast-disabled-notice-light"[^>]*>(.+?)<(?:a|/div)',
|
||||
webpage, 'error message', default=None)
|
||||
|
||||
encrypted_play_info = self._search_regex(
|
||||
r'm-play-info="([^"]+)"', webpage, 'play info')
|
||||
|
||||
play_info = self._decrypt_play_info(encrypted_play_info, track_id)
|
||||
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 is None:
|
||||
js_url = self._search_regex(
|
||||
r'<script[^>]+\bsrc=["\"](https://(?:www\.)?mixcloud\.com/media/js/www\.[^>]+\.js)',
|
||||
webpage, 'js url')
|
||||
js = self._download_webpage(js_url, track_id)
|
||||
# Known plaintext attack
|
||||
if encrypted_play_info:
|
||||
kps = ['{"stream_url":']
|
||||
kpa_target = encrypted_play_info
|
||||
else:
|
||||
kps = ['https://', 'http://']
|
||||
kpa_target = base64.b64decode(info_json['streamInfo']['url'])
|
||||
for kp in kps:
|
||||
partial_key = self._decrypt_xor_cipher(kpa_target, kp)
|
||||
for quote in ["'", '"']:
|
||||
key = self._search_regex(r'{0}({1}[^{0}]*){0}'.format(quote, re.escape(partial_key)), js,
|
||||
"encryption key", default=None)
|
||||
if key is not None:
|
||||
break
|
||||
else:
|
||||
continue
|
||||
break
|
||||
else:
|
||||
raise ExtractorError('Failed to extract encryption key')
|
||||
|
||||
if encrypted_play_info is not None:
|
||||
play_info = self._parse_json(self._decrypt_xor_cipher(key, encrypted_play_info), 'play info')
|
||||
if message and 'stream_url' not in play_info:
|
||||
raise ExtractorError('%s said: %s' % (self.IE_NAME, message), expected=True)
|
||||
|
||||
song_url = play_info['stream_url']
|
||||
formats = [{
|
||||
'format_id': 'normal',
|
||||
'url': song_url
|
||||
}]
|
||||
|
||||
title = self._html_search_regex(r'm-title="([^"]+)"', webpage, 'title')
|
||||
thumbnail = self._proto_relative_url(self._html_search_regex(
|
||||
|
|
@ -128,10 +151,30 @@ class MixcloudIE(InfoExtractor):
|
|||
r'(?:m|data)-tooltip=["\']([\d,.]+) plays'],
|
||||
webpage, 'play count', default=None))
|
||||
|
||||
else:
|
||||
title = info_json['name']
|
||||
thumbnail = try_get(info_json,
|
||||
lambda x: 'https://thumbnailer.mixcloud.com/unsafe/600x600/' + x['picture']['urlRoot'])
|
||||
uploader = try_get(info_json, lambda x: x['owner']['displayName'])
|
||||
uploader_id = try_get(info_json, lambda x: x['owner']['username'])
|
||||
description = try_get(info_json, lambda x: x['description'])
|
||||
view_count = try_get(info_json, lambda x: x['plays'])
|
||||
|
||||
stream_info = info_json['streamInfo']
|
||||
formats = []
|
||||
self._decrypt_and_extend(stream_info, 'url', lambda x: [{
|
||||
'format_id': 'normal',
|
||||
'url': x
|
||||
}], key, formats)
|
||||
self._decrypt_and_extend(stream_info, 'hlsUrl', lambda x: self._extract_m3u8_formats(x, title), key,
|
||||
formats)
|
||||
self._decrypt_and_extend(stream_info, 'dashUrl', lambda x: self._extract_mpd_formats(x, title), key,
|
||||
formats)
|
||||
|
||||
return {
|
||||
'id': track_id,
|
||||
'title': title,
|
||||
'url': song_url,
|
||||
'formats': formats,
|
||||
'description': description,
|
||||
'thumbnail': thumbnail,
|
||||
'uploader': uploader,
|
||||
|
|
|
|||
Loading…
Reference in a new issue