From 83b6249fe6994f81cb6e1db53bb64ec305734a8f Mon Sep 17 00:00:00 2001
From: girst <tobi@isticktoit.net>
Date: Tue, 29 Mar 2022 16:55:53 +0200
Subject: [PATCH] port yt-dlp#3233 agegate bypass

the change in embedUrl was cargo-culted from there, no idea if needed.
---
 app/common/common.py | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/app/common/common.py b/app/common/common.py
index 06a627a..3dfb297 100644
--- a/app/common/common.py
+++ b/app/common/common.py
@@ -203,6 +203,13 @@ def update_channel(db, xmldata, from_webhook=False):
 
     return True
 
+def is_agegated(metadata):
+    playabilityStatus = metadata['playabilityStatus']
+    return bool(
+        playabilityStatus.get("status") == "CONTENT_CHECK_REQUIRED"
+        or playabilityStatus.get("desktopLegacyAgeGateReason")
+    )
+
 def get_video_info(video_id, *, metaOnly=False, _embed=True):
     """
     returns: best-quality muxed video stream, stream map, player_response, error-type/mesage
@@ -215,7 +222,6 @@ def get_video_info(video_id, *, metaOnly=False, _embed=True):
         cookies = dict(c.fetchall())
     today = datetime.now(timezone.utc).strftime("%Y%m%d")
     # XXX: anticaptcha hasn't been adapted
-    # XXX: this is not cached any more!
     key = "AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8"
     r = requests.post("https://www.youtube-nocookie.com/youtubei/v1/player", params={'key': key}, json={
         'videoId': video_id,
@@ -223,12 +229,12 @@ def get_video_info(video_id, *, metaOnly=False, _embed=True):
             'client': {
                 'gl': 'US',
                 'hl': 'en',
-                # ANDROID returns streams that are not throttled or cipher-scambled, but less metadata than WEB
-                'clientName': 'ANDROID' if not metaOnly else 'WEB',
-                'clientVersion': f'16.20' if not metaOnly else f'2.{today}.01.01',
-                **({'clientScreen': 'EMBED'} if _embed else {}),
+                # ANDROID returns streams that are not throttled or cipher-scambled, but less metadata than WEB.
+                # TVHTML5* returns throttled and possibly ciphered streams, but bypasses age-gate. we don't decode them currently.
+                'clientName': ('ANDROID' if _embed else 'TVHTML5_SIMPLY_EMBEDDED_PLAYER') if not metaOnly else 'WEB',
+                'clientVersion': (f'16.20' if _embed else '2.0') if not metaOnly else f'2.{today}.01.01',
             },
-            'thirdParty': {'embedUrl': 'https://google.com'}
+            'thirdParty': {'embedUrl': 'https://www.youtube.com/'}
         },
     }, cookies=cookies)
 
@@ -243,19 +249,14 @@ def get_video_info(video_id, *, metaOnly=False, _embed=True):
         playabilityReason = metadata['playabilityStatus'].get('reason',
                 '//'.join(metadata['playabilityStatus'].get('messages',[])))
         player_error = f"{playabilityStatus}: {playabilityReason}"
-        # "Watch on YouTube" button is visible => "Playback on other websites
-        # has been disabled by the video owner." => retry detailpage API
-        if (playabilityStatus == "UNPLAYABLE" and
-            'proceedButton' in metadata['playabilityStatus'] \
-                .get('errorScreen',{}).get('playerErrorMessageRenderer',{})
+        if (is_agegated(metadata)
             and not metaOnly # only need metadata (e.g. called from pubsubhubbub)
-            and _embed
-
+            and _embed # already trying bypass
         ):
             _, _, metadata_embed, error_embed, errormsg_embed = get_video_info(video_id, _embed=False)
             if not error_embed or error_embed in ('livestream','geolocked'):
                 metadata = metadata_embed
-            elif errormsg_embed == "LOGIN_REQUIRED: Sign in to confirm your age":
+            elif is_agegated(metadata_embed): # agegate bypass failed?
                 return None, None, metadata, 'agegated', player_error
             else:
                 return None, None, metadata, error_embed, errormsg_embed
-- 
2.39.3