Merge 91e82be into d9153ee

theupdateframework · Aug 11, 2022 · 22dbc6f · 22dbc6f
2 parents d9153ee + 91e82be
commit 22dbc6f
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/tuf/ngclient/_internal/requests_fetcher.py b/tuf/ngclient/_internal/requests_fetcher.py
@@ -107,6 +107,8 @@ def _chunks(self, response: "requests.Response") -> Iterator[bytes]:
         finally:
             response.close()
 
+    SCHEMES_WITHOUT_HOSTNAME = {"file"}
+
     def _get_session(self, url: str) -> requests.Session:
         """Returns a different customized requests.Session per schema+hostname
         combination.
@@ -118,7 +120,7 @@ def _get_session(self, url: str) -> requests.Session:
         # reuse connections while minimizing subtle security issues.
         parsed_url = parse.urlparse(url)
 
-        if not parsed_url.scheme or not parsed_url.hostname:
+        if not parsed_url.scheme or (not parsed_url.hostname and parsed_url.scheme not in self.SCHEMES_WITHOUT_HOSTNAME):
             raise exceptions.DownloadError(f"Failed to parse URL {url}")
 
         session_index = f"{parsed_url.scheme}+{parsed_url.hostname}"