From 227277217bbabbd979c2c80edd7ecc16392b69b4 Mon Sep 17 00:00:00 2001
From: rhgndf <16336768+rhgndf@users.noreply.github.com>
Date: Thu, 12 Dec 2024 13:28:42 +0800
Subject: [PATCH] [duboku] Handle error

---
 yt_dlp/extractor/duboku.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/yt_dlp/extractor/duboku.py b/yt_dlp/extractor/duboku.py
index 43a5e5f2c2..d0ca668a3e 100644
--- a/yt_dlp/extractor/duboku.py
+++ b/yt_dlp/extractor/duboku.py
@@ -138,7 +138,10 @@ class DubokuIE(InfoExtractor):
 
         sign_url = 'https://w.duboku.io/static/player/vidjs25.php'
         sign_html = self._download_webpage(sign_url, video_id)
-        sign = re.search(r'encodeURIComponent\(\'(.*)\'\);', sign_html).group(1)
+        sign = re.search(r'encodeURIComponent\(\'(.*)\'\);', sign_html)
+        if not sign:
+            raise ExtractorError('Cannot find sign in player')
+        sign = sign.group(1)
 
         # if it is an embedded iframe, maybe it's an external source
         headers = {'Referer': webpage_url}