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[mixcloud] Improve and simplify (closes #14132)
This commit is contained in:
Sergey M․
parent
2384f5a64e
commit
095774e591
@ -9,6 +9,7 @@ from .common import InfoExtractor
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from ..compat import (
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compat_chr,
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compat_ord,
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compat_str,
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compat_urllib_parse_unquote,
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compat_urlparse,
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compat_zip
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@ -16,9 +17,12 @@ from ..compat import (
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from ..utils import (
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clean_html,
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ExtractorError,
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int_or_none,
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OnDemandPagedList,
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str_to_int,
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try_get)
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try_get,
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urljoin,
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)
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class MixcloudIE(InfoExtractor):
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@ -61,13 +65,6 @@ class MixcloudIE(InfoExtractor):
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compat_chr(compat_ord(ch) ^ compat_ord(k))
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for ch, k in compat_zip(ciphertext, itertools.cycle(key))])
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@staticmethod
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def _decrypt_and_extend(stream_info, url_key, getter, key, formats):
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maybe_url = stream_info.get(url_key)
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if maybe_url is not None:
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decrypted = MixcloudIE._decrypt_xor_cipher(key, base64.b64decode(maybe_url))
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formats.extend(getter(decrypted))
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def _real_extract(self, url):
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mobj = re.match(self._VALID_URL, url)
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uploader = mobj.group(1)
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@ -86,9 +83,12 @@ class MixcloudIE(InfoExtractor):
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else:
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# New path
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full_info_json = self._parse_json(self._html_search_regex(
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r'<script id="relay-data" type="text/x-mixcloud">([^<]+)</script>', webpage, 'play info'), 'play info')
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r'<script id="relay-data" type="text/x-mixcloud">([^<]+)</script>',
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webpage, 'play info'), 'play info')
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for item in full_info_json:
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item_data = try_get(item, lambda x: x['cloudcast']['data']['cloudcastLookup'])
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item_data = try_get(
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item, lambda x: x['cloudcast']['data']['cloudcastLookup'],
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dict)
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if try_get(item_data, lambda x: x['streamInfo']['url']):
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info_json = item_data
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break
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@ -100,13 +100,9 @@ class MixcloudIE(InfoExtractor):
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webpage, 'error message', default=None)
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js_url = self._search_regex(
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r'<script[^>]+\bsrc=["\"](https://(?:www\.)?mixcloud\.com/media/js2/www_js_4\.[^>]+\.js)',
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webpage, 'js url', default=None)
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if js_url is None:
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js_url = self._search_regex(
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r'<script[^>]+\bsrc=["\"](https://(?:www\.)?mixcloud\.com/media/js/www\.[^>]+\.js)',
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webpage, 'js url')
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js = self._download_webpage(js_url, track_id)
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r'<script[^>]+\bsrc=["\"](https://(?:www\.)?mixcloud\.com/media/(?:js2/www_js_4|js/www)\.[^>]+\.js)',
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webpage, 'js url')
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js = self._download_webpage(js_url, track_id, 'Downloading JS')
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# Known plaintext attack
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if encrypted_play_info:
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kps = ['{"stream_url":']
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@ -117,8 +113,9 @@ class MixcloudIE(InfoExtractor):
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for kp in kps:
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partial_key = self._decrypt_xor_cipher(kpa_target, kp)
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for quote in ["'", '"']:
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key = self._search_regex(r'{0}({1}[^{0}]*){0}'.format(quote, re.escape(partial_key)), js,
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"encryption key", default=None)
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key = self._search_regex(
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r'{0}({1}[^{0}]*){0}'.format(quote, re.escape(partial_key)),
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js, 'encryption key', default=None)
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if key is not None:
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break
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else:
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@ -153,23 +150,37 @@ class MixcloudIE(InfoExtractor):
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else:
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title = info_json['name']
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thumbnail = try_get(info_json,
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lambda x: 'https://thumbnailer.mixcloud.com/unsafe/600x600/' + x['picture']['urlRoot'])
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thumbnail = urljoin(
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'https://thumbnailer.mixcloud.com/unsafe/600x600/',
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try_get(info_json, lambda x: x['picture']['urlRoot'], compat_str))
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uploader = try_get(info_json, lambda x: x['owner']['displayName'])
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uploader_id = try_get(info_json, lambda x: x['owner']['username'])
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description = try_get(info_json, lambda x: x['description'])
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view_count = try_get(info_json, lambda x: x['plays'])
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view_count = int_or_none(try_get(info_json, lambda x: x['plays']))
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stream_info = info_json['streamInfo']
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formats = []
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self._decrypt_and_extend(stream_info, 'url', lambda x: [{
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'format_id': 'normal',
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'url': x
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}], key, formats)
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self._decrypt_and_extend(stream_info, 'hlsUrl', lambda x: self._extract_m3u8_formats(x, title), key,
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formats)
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self._decrypt_and_extend(stream_info, 'dashUrl', lambda x: self._extract_mpd_formats(x, title), key,
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formats)
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for url_key in ('url', 'hlsUrl', 'dashUrl'):
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format_url = stream_info.get(url_key)
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if not format_url:
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continue
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decrypted = self._decrypt_xor_cipher(key, base64.b64decode(format_url))
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if not decrypted:
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continue
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if url_key == 'hlsUrl':
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formats.extend(self._extract_m3u8_formats(
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decrypted, track_id, 'mp4', entry_protocol='m3u8_native',
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m3u8_id='hls', fatal=False))
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elif url_key == 'dashUrl':
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formats.extend(self._extract_mpd_formats(
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decrypted, track_id, mpd_id='dash', fatal=False))
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else:
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formats.append({
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'format_id': 'http',
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'url': decrypted,
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})
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self._sort_formats(formats)
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return {
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'id': track_id,
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