Fix improper handling of URL-escaped module names

Closes #786

Author: iFreilicht

pdoc/web.py

@@ -14,6 +14,7 @@
 import http.server
 import traceback
 from typing import Mapping
+import urllib.parse
 import warnings
 import webbrowser
 
@@ -60,6 +61,7 @@ def handle_request(self) -> str:
             return "Not Found: Please normalize all module separators to '/'."
         else:
             module_name = path.lstrip("/").removesuffix(".html").replace("/", ".")
+            module_name = urllib.parse.unquote(module_name)
             if module_name not in self.server.all_modules:
                 self.send_response(404)
                 self.send_header("content-type", "text/html")

test/test_web.py

@@ -69,6 +69,11 @@ def test_get_module():
     )
 
 
+def test_get_module_url_escape_sequences():
+    assert b"make_dataclass" in handle_request(
+        b"GET /%64atac%6Ca%73se%73.html HTTP/1.1\r\n\r\n"
+    )
+
 def test_get_dependency():
     assert b"a template engine written in pure Python" in handle_request(
         b"GET /jinja2.html HTTP/1.1\r\n\r\n"