From c19bf7d000590f032275cb744c86f57dddb48dba Mon Sep 17 00:00:00 2001
From: girst <tobi@isticktoit.net>
Date: Thu, 20 May 2021 16:18:29 +0200
Subject: [PATCH] replace /get_video_info call

this has sporadically returned errors for the last few days, and now
does it all the time. youtube.com/watch and /embed have moved to this
endpoint, with the same key as is used elsewhere in the innertube api.

this probably is the beginning of the end of the seperate /browse
endpoint, as innertube is now required in core.
---
 app/common/common.py | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/app/common/common.py b/app/common/common.py
index f7d48b9..b9926d4 100644
--- a/app/common/common.py
+++ b/app/common/common.py
@@ -206,28 +206,32 @@ def get_video_info(video_id, sts=0, algo=""):
     returns: best-quality muxed video stream, stream map, player_response, error-type/mesage
     error types: player, malformed, livestream, geolocked, exhausted
     """
-    player_error = None # for 'exhausted'
+    player_error, metadata = None, None # for 'exhausted'
     with sqlite3.connect(cf['global']['database']) as conn:
         c = conn.cursor()
         c.execute("SELECT * FROM captcha_cookies")
         cookies = dict(c.fetchall())
-    for el in ['embedded', 'detailpage']:#sometimes, only one or the other works
-        r = requests.get("https://www.youtube.com/get_video_info", {
-            "video_id": video_id,
-            "eurl": f"https://youtube.googleapis.com/v/{video_id}",
-            "el": el,
-            "sts": sts,
-            "hl": "en_US",
+    for el in ['WEB_EMBEDDED_PLAYER', 'WEB']: # sometimes, only one or the other works
+        today = datetime.now(timezone.utc).strftime("%Y%m%d")
+        # XXX: anticaptcha hasn't been adapted
+        # XXX: this is not cached any more!
+        r = requests.post("https://www.youtube-nocookie.com/youtubei/v1/player?key=AIzaSyAO_FJ2SlqU8Q4STEHLGCilw_Y9_11qcW8", json={
+            'videoId': video_id,
+            'context': {
+                'client': {
+                    'gl': 'US',
+                    'hl': 'en',
+                    'clientName': el,
+                    'clientVersion': f'2.{today}.01.01',
+                }
+            },
+            'playbackContext': {'contentPlaybackContext': {'signatureTimestamp': sts}}
         }, cookies=cookies)
 
         if r.status_code == 429:
             return None, None, None, 'banned', 'possible IP ban'
 
-        params = parse_qs(r.text)
-        if 'errorcode' in params: # status=fail
-            return None, None, None, 'malformed', params['reason'][0]
-
-        metadata = json.loads(params.get('player_response')[0])
+        metadata = r.json()
         playabilityStatus = metadata['playabilityStatus']['status']
         if playabilityStatus != "OK":
             playabilityReason = metadata['playabilityStatus'].get('reason',
-- 
2.39.3