From 91eb04b0d086395ad60ca87cfbf55ae6b677ca3a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mike=20F=C3=A4hrmann?= <mike_faehrmann@web.de>
Date: Sat, 21 Sep 2024 13:20:42 +0200
Subject: [PATCH] [ao3] detect member-only and adult works (#6013)

---
 gallery_dl/extractor/ao3.py | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/gallery_dl/extractor/ao3.py b/gallery_dl/extractor/ao3.py
index a0abce05..88f73ac6 100644
--- a/gallery_dl/extractor/ao3.py
+++ b/gallery_dl/extractor/ao3.py
@@ -116,7 +116,17 @@ class Ao3WorkExtractor(Ao3Extractor):
 
         work_id = self.groups[0]
         url = "{}/works/{}".format(self.root, work_id)
-        extr = text.extract_from(self.request(url).text)
+        response = self.request(url, notfound="work")
+
+        if response.url.endswith("/users/login?restricted=true"):
+            raise exception.AuthorizationError(
+                "Login required to access member-only works")
+        page = response.text
+        if len(page) < 20000 and \
+                '<h2 class="landmark heading">Adult Content Warning</' in page:
+            raise exception.StopExtraction("Adult Content")
+
+        extr = text.extract_from(page)
 
         chapters = {}
         cindex = extr(' id="chapter_index"', "</ul>")