allow pct-encoded entities in fragments

Author: conitrade-as

src/validators/url.py

@@ -112,7 +112,7 @@ def _validate_optionals(path: str, query: str, fragment: str, strict_query: bool
         optional_segments &= True
     if fragment:
         # See RFC3986 Section 3.5 Fragment for allowed characters
-        optional_segments &= bool(re.fullmatch(r"[0-9a-zA-Z?/:@\-._~!$&'()*+,;=]*", fragment))
+        optional_segments &= bool(re.fullmatch(r"[0-9a-zA-Z?/:@\-._~%!$&'()*+,;=]*", fragment))
     return optional_segments
 
 

tests/test_url.py

@@ -87,6 +87,7 @@
         "https://www.foo.com/bar#/baz/test",
         "https://matrix.to/#/!BSqRHgvCtIsGittkBG:talk.puri.sm/$1551464398"
         + "853539kMJNP:matrix.org?via=talk.puri.sm&via=matrix.org&via=disroot.org",
+        "https://example.org/path#2022%201040%20(Cornelius%20Morgan%20G).pdf",
         # when simple_host=True
         # "http://localhost",
         # "http://localhost:8000",