From 37aa7337dcc99114976506749f0c141878437a74 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mike=20F=C3=A4hrmann?= <mike_faehrmann@web.de>
Date: Sat, 1 Nov 2025 10:34:11 +0100
Subject: [PATCH] [text] reject long filename extensions (#8491)

fixes regression introduced in 3252ead7c74d257a45e8e15a30d884a3a528c2d1
ref bc868e7bb8ad82d9d2bef7a609aa2deb50fca647
---
 gallery_dl/text.py     |  2 +-
 test/results/kemono.py | 11 +++++++++++
 test/test_text.py      |  4 ++++
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/gallery_dl/text.py b/gallery_dl/text.py
index 9738edb2..5b074d9e 100644
--- a/gallery_dl/text.py
+++ b/gallery_dl/text.py
@@ -125,7 +125,7 @@ def nameext_from_name(filename, data=None):
         data = {}
 
     name, _, ext = filename.rpartition(".")
-    if name:
+    if name and len(ext) <= 16:
         data["filename"] = name
         data["extension"] = ext.lower()
     else:
diff --git a/test/results/kemono.py b/test/results/kemono.py
index cb9e290a..f1bb4d3f 100644
--- a/test/results/kemono.py
+++ b/test/results/kemono.py
@@ -549,6 +549,17 @@ __tests__ = (
     "username"    : util.NONE,
 },
 
+{
+    "#url"     : "https://kemono.cr/patreon/user/2570882/post/79311665",
+    "#comment" : "patreon file URL as 'name' / long 'extension' (#8491)",
+    "#category": ("", "kemono", "patreon"),
+    "#class"   : kemono.KemonoPostExtractor,
+
+    "name"     : "https://www.patreon.com/media-u/Z0FBQUFBQmpfWFNLWHpRakFlYjVNeWpuTlRuRnJBdHY3VVA2UmRhVHFpOFBHMW9QZUdVOHQ3b2pXSV9XMkJlaHFuN2JyVk5VNDBqdV9lZVRLR2NkUXUwSjgwdndDQlk3VzBCUXI5TW5iejlVWVZaUmJoTktIX3B5aGVCS3dUQk11a2hxajd4TUx2MFN2UHpKa0pfOWZQeS1UeDlzNEhpbG9pRzJsZE54MG5OcnZDOUllTGhyY01rNjVRaGgyaVFycjFSUUFIaV92OU9wdktuVjlMeFJNLXhYejdDNWZTVXZEc2l0TVZCR1A0YXM3RVMzbmsxSjh2ND0=#190833153_",
+    "filename" : "https://www.patreon.com/media-u/Z0FBQUFBQmpfWFNLWHpRakFlYjVNeWpuTlRuRnJBdHY3VVA2UmRhVHFpOFBHMW9QZUdVOHQ3b2pXSV9XMkJlaHFuN2JyVk5VNDBqdV9lZVRLR2NkUXUwSjgwdndDQlk3VzBCUXI5TW5iejlVWVZaUmJoTktIX3B5aGVCS3dUQk11a2hxajd4TUx2MFN2UHpKa0pfOWZQeS1UeDlzNEhpbG9pRzJsZE54MG5OcnZDOUllTGhyY01rNjVRaGgyaVFycjFSUUFIaV92OU9wdktuVjlMeFJNLXhYejdDNWZTVXZEc2l0TVZCR1A0YXM3RVMzbmsxSjh2ND0=#190833153_",
+    "extension": "jpg",
+},
+
 {
     "#url"     : "https://kemono.cr/discord/server/488668827274444803/608504710906904576",
     "#category": ("", "kemono", "discord"),
diff --git a/test/test_text.py b/test/test_text.py
index 7b9a4247..eac79069 100644
--- a/test/test_text.py
+++ b/test/test_text.py
@@ -228,6 +228,10 @@ class TestText(unittest.TestCase):
             {"filename": "foo%202?bar&<>", "extension": "ext"},
         )
 
+        # long "extension"
+        fn = "httpswww.example.orgpath-path-path-path-path-path-path-path"
+        self.assertEqual(f(fn), {"filename": fn, "extension": ""})
+
     def test_extract(self, f=text.extract):
         txt = "<a><b>"
         self.assertEqual(f(txt, "<", ">"), ("a" , 3))