I have no idea what I'm doing
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Dominika
parent
073d6468dd
commit
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44
devscripts/ExtractCryptoYT.sh
Executable file
44
devscripts/ExtractCryptoYT.sh
Executable file
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@ -0,0 +1,44 @@
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#!/bin/bash
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func="$(cat $1 | grep -P '[a-z]\=a\.split.*a\.join')"
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echo $func
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obfuscatedName="$(echo $func | grep -Poh '\(""\);[A-Za-z]+' | sed -s 's/("");//')"
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obfuscatedFunc=$(cat "$1" | tr -d '\n' | grep -Poh "$obfuscatedName\=.*?}}")
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mess="$(echo "$obfuscatedFunc" | grep -Poh "..:function\([a-z]+,[a-z]+\){var" | grep -Poh "^..")"
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rev="$(echo "$obfuscatedFunc" | grep -Poh "..:function\([a-z]+\){[a-z]+.rev" | grep -Poh "^..")"
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splice="$(echo "$obfuscatedFunc" | grep -Poh "..:function\([a-z]+\,[a-z]+\){[a-z]+\." | grep -Poh "^..")"
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echo "mess name: $mess"
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echo "reverse name: $rev"
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echo "splice name: $splice"
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code="$(echo "$func" | sed -E 's/.*[a-z]+\.split\(""\);//;s/return.*//')"
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IFS=';'
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for i in $code; do
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num="$(echo "$i" | grep -Poh ',[0-9]+' | grep -Poh '[0-9]+')"
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if [[ "$i" == *"$splice"* ]]; then
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echo "a=a[$num:]"
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elif [[ "$i" == *"$rev"* ]]; then
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echo "a.reverse()"
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elif [[ "$i" == *"$mess"* ]]; then
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echo "a=self.mess(a,$num)"
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else
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echo "UNKNOWN????"
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fi
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done
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echo --- and now, JS
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for i in $code; do
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num="$(echo "$i" | grep -Poh ',[0-9]+' | grep -Poh '[0-9]+')"
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if [[ "$i" == *"$splice"* ]]; then
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echo "a.splice(0,$num)"
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elif [[ "$i" == *"$rev"* ]]; then
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echo "a.reverse()"
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elif [[ "$i" == *"$mess"* ]]; then
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echo "mess(a,$num)"
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else
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echo "UNKNOWN????"
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fi
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done
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@ -1255,8 +1255,9 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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a[b%len(a)]=c
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return a
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def _decrypt_signature(self, s, video_id, player_url, age_gate=False):
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"""Turn the encrypted s field into a working signature"""
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def _decrypt_signature(self, s):
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"""Turn the encrypted s field into a working signature
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YouTube ignores this? It only matters on protected videos..."""
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a=[char for char in s]
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a=self.mess(a,67)
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a=a[1:]
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@ -1269,6 +1270,16 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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a.reverse()
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return "".join(a)
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def _decrypt_signature_protected(self, s):
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a=[char for char in s]
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a=a[1:]
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a=self.mess(a,50)
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a.reverse()
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a=a[3:]
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a=self.mess(a,34)
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a.reverse()
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return "".join(a)
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def _get_subtitles(self, video_id, webpage):
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try:
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subs_doc = self._download_xml(
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@ -1905,33 +1916,26 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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if cipher:
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if 's' in url_data or self._downloader.params.get('youtube_include_dash_manifest', True):
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#ASSETS_RE = r'"assets":.+?"js":\s*("[^"]+")'
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#ASSETS_RE = r's/player/.*?/player_ias.vflset/.*?/base.js'
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ASSETS_RE = r'"jsUrl":"(/s/player/.*?/player_ias.vflset/.*?/base.js)'
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#jsplayer_url_json = self._search_regex(
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# ASSETS_RE,
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# embed_webpage if age_gate else video_webpage,
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# 'JS player URL (1)', default=None)
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#if not jsplayer_url_json and not age_gate:
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player_url = self._search_regex(
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ASSETS_RE,
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embed_webpage if age_gate else video_webpage, '', default=None)
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if not player_url and not age_gate:
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# We need the embed website after all
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# if embed_webpage is None:
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# embed_url = proto + '://www.youtube.com/embed/%s' % video_id
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# embed_webpage = self._download_webpage(
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# embed_url, video_id, 'Downloading embed webpage')
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# jsplayer_url_json = self._search_regex(
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# ASSETS_RE, embed_webpage, 'JS player URL')
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if embed_webpage is None:
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embed_url = proto + '://www.youtube.com/embed/%s' % video_id
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embed_webpage = self._download_webpage(
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embed_url, video_id, 'Downloading embed webpage')
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player_url = self._search_regex(
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ASSETS_RE, embed_webpage, 'JS player URL')
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#player_url = json.loads(jsplayer_url_json)
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# Corporate needs you to compare all those js players
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# THEY ARE THE SAME PLAYER
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player_url = "https://www.youtube.com/s/player/ec262be6/player_ias.vflset/en_GB/base.js" #
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#if player_url is None:
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# player_url_json = self._search_regex(
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# r'ytplayer\.config.*?"url"\s*:\s*("[^"]+")',
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# video_webpage, 'age gate player URL')
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# player_url = json.loads(player_url_json)
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if player_url is None:
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player_url_json = self._search_regex(
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r'ytplayer\.config.*?"url"\s*:\s*("[^"]+")',
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video_webpage, 'age gate player URL')
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player_url = json.loads(player_url_json)
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if 'sig' in url_data:
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url += '&signature=' + url_data['sig'][0]
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@ -1943,13 +1947,13 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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player_desc = 'unknown'
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else:
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player_type, player_version = self._extract_player_info(player_url)
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player_desc = '%s player %s' % ('flash' if player_type == 'swf' else 'html5', player_version)
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player_desc = 'html5 player %s' % player_version
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parts_sizes = self._signature_cache_id(encrypted_sig)
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self.to_screen('{%s} signature length %s, %s' %
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(format_id, parts_sizes, player_desc))
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signature = self._decrypt_signature(
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encrypted_sig, video_id, player_url, age_gate)
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signature = self._decrypt_signature_protected(encrypted_sig)
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sp = try_get(url_data, lambda x: x['sp'][0], compat_str) or 'signature'
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url += '&%s=%s' % (sp, signature)
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if 'ratebypass' not in url:
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@ -2276,7 +2280,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
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try:
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def decrypt_sig(mobj):
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s = mobj.group(1)
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dec_s = self._decrypt_signature(s, video_id, player_url, age_gate)
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dec_s = self._decrypt_signature_protected(s)
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return '/signature/%s' % dec_s
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mpd_url = re.sub(r'/s/([a-fA-F0-9\.]+)', decrypt_sig, mpd_url)
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@ -1,3 +1,3 @@
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from __future__ import unicode_literals
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__version__ = '2020.11.01.01'
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__version__ = '2020.11.04'
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