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Enhance YouTube processing resilience with JS challenge fallback and robust cookie-based retries.

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This commit is contained in:
Victor Giers
2026-05-08 02:31:59 +02:00
parent d2897627e5
commit 1bcdca490f
1 changed files with 59 additions and 6 deletions
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65
youtube_summarizer.py
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@@ -827,8 +827,8 @@ def process_video(
try:
return process_video_once(url, use_whisper, model, output_json, prompt_template)
except Exception as exc:
if has_cookie_source(cookies_from_browser, cookies_file) and is_youtube_auth_error(exc):
print("YouTube requested sign-in; retrying with selected cookies...", flush=True)
if is_youtube_js_challenge_error(exc):
print("YouTube player challenge failed; retrying with Node/EJS challenge fallback...", flush=True)
return process_video_once(
url,
use_whisper,
@@ -837,7 +837,38 @@ def process_video(
prompt_template,
cookies_from_browser,
cookies_file,
True,
)
if has_cookie_source(cookies_from_browser, cookies_file) and is_youtube_auth_error(exc):
print("YouTube requested sign-in; retrying with selected cookies...", flush=True)
try:
return process_video_once(
url,
use_whisper,
model,
output_json,
prompt_template,
cookies_from_browser,
cookies_file,
)
except Exception as cookie_exc:
if is_youtube_js_challenge_error(cookie_exc):
print(
"YouTube player challenge failed; retrying with Node/EJS challenge fallback...",
flush=True,
)
return process_video_once(
url,
use_whisper,
model,
output_json,
prompt_template,
cookies_from_browser,
cookies_file,
True,
)
raise
raise
@@ -849,6 +880,7 @@ def process_video_once(
prompt_template: Optional[str] = None,
cookies_from_browser: Optional[str] = None,
cookies_file: Optional[str] = None,
use_js_challenge_fallback: bool = False,
) -> dict:
"""
Core processing routine. Retrieves metadata, obtains transcript via the
@@ -875,17 +907,33 @@ def process_video_once(
dict
A dictionary containing metadata about the processed video.
"""
vid, title, thumb_url = fetch_video_metadata(url, cookies_from_browser, cookies_file)
vid, title, thumb_url = fetch_video_metadata(
url,
cookies_from_browser,
cookies_file,
use_js_challenge_fallback,
)
if not vid:
raise SystemExit("Invalid YouTube URL.")
# Fetch the channel/uploader name
channel_name = fetch_channel_name(url, cookies_from_browser, cookies_file)
channel_name = fetch_channel_name(
url,
cookies_from_browser,
cookies_file,
use_js_challenge_fallback,
)
# Fetch transcript
if use_whisper:
print("Using Whisper parallel transcription...")
transcript_text = whisper_transcript(url, vid, cookies_from_browser, cookies_file)
transcript_text = whisper_transcript(
url,
vid,
cookies_from_browser,
cookies_file,
use_js_challenge_fallback,
)
if not transcript_text.strip():
raise SystemExit("Whisper transcription failed or empty.")
else:
@@ -895,7 +943,12 @@ def process_video_once(
transcript_text = get_transcript_api(vid)
except Exception:
print("API failed, falling back to subtitles...")
transcript_text = get_subtitles_via_yt_dlp(url, cookies_from_browser, cookies_file)
transcript_text = get_subtitles_via_yt_dlp(
url,
cookies_from_browser,
cookies_file,
use_js_challenge_fallback,
)
if not transcript_text:
raise SystemExit("No transcript/subtitles available.")