mirror of
https://github.com/ytdl-org/youtube-dl
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[videa] improve extraction
This commit is contained in:
Remita Amine
parent
a3cf22e590
commit
f9f9699f2f
@ -1,10 +1,9 @@
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# coding: utf-8
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from __future__ import unicode_literals
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import re
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import random
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import re
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import string
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import struct
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from .common import InfoExtractor
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from ..utils import (
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@ -12,13 +11,14 @@ from ..utils import (
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int_or_none,
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mimetype2ext,
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parse_codecs,
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update_url_query,
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xpath_element,
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xpath_text,
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)
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from ..compat import (
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compat_b64decode,
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compat_ord,
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compat_parse_qs,
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compat_struct_pack,
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)
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@ -28,7 +28,7 @@ class VideaIE(InfoExtractor):
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videa(?:kid)?\.hu/
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(?:
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videok/(?:[^/]+/)*[^?#&]+-|
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player\?.*?\bv=|
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(?:videojs_)?player\?.*?\bv=|
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player/v/
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)
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(?P<id>[^?#&]+)
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@ -62,6 +62,7 @@ class VideaIE(InfoExtractor):
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'url': 'https://videakid.hu/player/v/8YfIAjxwWGwT8HVQ?autoplay=1',
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'only_matching': True,
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}]
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_STATIC_SECRET = 'xHb0ZvME5q8CBcoQi6AngerDu3FGO9fkUlwPmLVY_RTzj2hJIS4NasXWKy1td7p'
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@staticmethod
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def _extract_urls(webpage):
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@ -69,75 +70,84 @@ class VideaIE(InfoExtractor):
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r'<iframe[^>]+src=(["\'])(?P<url>(?:https?:)?//videa\.hu/player\?.*?\bv=.+?)\1',
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webpage)]
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def rc4(self, ciphertext, key):
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@staticmethod
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def rc4(cipher_text, key):
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res = b''
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keyLen = len(key)
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key_len = len(key)
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S = list(range(256))
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j = 0
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for i in range(256):
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j = (j + S[i] + ord(key[i % keyLen])) % 256
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j = (j + S[i] + ord(key[i % key_len])) % 256
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S[i], S[j] = S[j], S[i]
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i = 0
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j = 0
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for m in range(len(ciphertext)):
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for m in range(len(cipher_text)):
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i = (i + 1) % 256
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j = (j + S[i]) % 256
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S[i], S[j] = S[j], S[i]
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k = S[(S[i] + S[j]) % 256]
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res += struct.pack("B", k ^ compat_ord(ciphertext[m]))
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res += compat_struct_pack('B', k ^ compat_ord(cipher_text[m]))
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return res
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return res.decode()
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def _real_extract(self, url):
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video_id = self._match_id(url)
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webpage = self._download_webpage(url, video_id, fatal=True)
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error = self._search_regex(r'<p class="error-text">([^<]+)</p>', webpage, 'error', default=None)
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if error:
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raise ExtractorError(error, expected=True)
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query = {'v': video_id}
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player_page = self._download_webpage(
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'https://videa.hu/player', video_id, query=query)
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video_src_params_raw = self._search_regex(r'<iframe[^>]+id="videa_player_iframe"[^>]+src="/player\?([^"]+)"', webpage, 'video_src_params')
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video_src_params = compat_parse_qs(video_src_params_raw)
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player_page = self._download_webpage("https://videa.hu/videojs_player?%s" % video_src_params_raw, video_id, fatal=True)
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nonce = self._search_regex(r'_xt\s*=\s*"([^"]+)"', player_page, 'nonce')
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random_seed = ''.join(random.choice(string.ascii_uppercase + string.ascii_lowercase + string.digits) for _ in range(8))
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static_secret = 'xHb0ZvME5q8CBcoQi6AngerDu3FGO9fkUlwPmLVY_RTzj2hJIS4NasXWKy1td7p'
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nonce = self._search_regex(
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r'_xt\s*=\s*"([^"]+)"', player_page, 'nonce')
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l = nonce[:32]
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s = nonce[32:]
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result = ''
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for i in range(0, 32):
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result += s[i - (static_secret.index(l[i]) - 31)]
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result += s[i - (self._STATIC_SECRET.index(l[i]) - 31)]
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video_src_params['_s'] = random_seed
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video_src_params['_t'] = result[:16]
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encryption_key_stem = result[16:] + random_seed
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random_seed = ''.join(random.choice(string.ascii_letters + string.digits) for _ in range(8))
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query['_s'] = random_seed
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query['_t'] = result[:16]
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[b64_info, handle] = self._download_webpage_handle(
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'http://videa.hu/videaplayer_get_xml.php', video_id,
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query=video_src_params, fatal=True)
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b64_info, handle = self._download_webpage_handle(
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'http://videa.hu/videaplayer_get_xml.php', video_id, query=query)
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if b64_info.startswith('<?xml'):
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info = self._parse_xml(b64_info, video_id)
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else:
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key = result[16:] + random_seed + handle.headers['x-videa-xs']
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info = self._parse_xml(self.rc4(
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compat_b64decode(b64_info), key), video_id)
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encrypted_info = compat_b64decode(b64_info)
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key = encryption_key_stem + handle.info()['x-videa-xs']
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info_str = self.rc4(encrypted_info, key).decode('utf8')
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info = self._parse_xml(info_str, video_id)
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video = xpath_element(info, './/video', 'video', fatal=True)
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sources = xpath_element(info, './/video_sources', 'sources', fatal=True)
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hash_values = xpath_element(info, './/hash_values', 'hash_values', fatal=True)
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video = xpath_element(info, './video', 'video')
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if not video:
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raise ExtractorError(xpath_element(
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info, './error', fatal=True), expected=True)
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sources = xpath_element(
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info, './video_sources', 'sources', fatal=True)
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hash_values = xpath_element(
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info, './hash_values', 'hash values', fatal=True)
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title = xpath_text(video, './title', fatal=True)
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formats = []
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for source in sources.findall('./video_source'):
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source_url = source.text
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if not source_url:
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source_name = source.get('name')
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source_exp = source.get('exp')
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if not (source_url and source_name and source_exp):
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continue
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source_url += '?md5=%s&expires=%s' % (hash_values.find('hash_value_%s' % source.get('name')).text, source.get('exp'))
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hash_value = xpath_text(hash_values, 'hash_value_' + source_name)
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if not hash_value:
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continue
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source_url = update_url_query(source_url, {
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'md5': hash_value,
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'expires': source_exp,
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})
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f = parse_codecs(source.get('codecs'))
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f.update({
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'url': source_url,
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'url': self._proto_relative_url(source_url),
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'ext': mimetype2ext(source.get('mimetype')) or 'mp4',
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'format_id': source.get('name'),
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'width': int_or_none(source.get('width')),
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@ -146,8 +156,7 @@ class VideaIE(InfoExtractor):
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formats.append(f)
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self._sort_formats(formats)
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thumbnail = xpath_text(video, './poster_src')
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duration = int_or_none(xpath_text(video, './duration'))
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thumbnail = self._proto_relative_url(xpath_text(video, './poster_src'))
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age_limit = None
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is_adult = xpath_text(video, './is_adult_content', default=None)
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@ -158,7 +167,7 @@ class VideaIE(InfoExtractor):
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'id': video_id,
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'title': title,
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'thumbnail': thumbnail,
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'duration': duration,
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'duration': int_or_none(xpath_text(video, './duration')),
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'age_limit': age_limit,
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'formats': formats,
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}
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