Fix /key/v2/server calls with URL-unsafe key IDs (#14490)

Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>
This commit is contained in:
David Robertson 2022-11-18 19:56:42 +00:00 committed by GitHub
parent 78e23eea05
commit e1b15f25f3
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3 changed files with 14 additions and 1 deletions

1
changelog.d/14490.misc Normal file
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@ -0,0 +1 @@
Fix a bug introduced in Synapse 0.9 where it would fail to fetch server keys whose IDs contain a forward slash.

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@ -857,7 +857,7 @@ class ServerKeyFetcher(BaseV2KeyFetcher):
response = await self.client.get_json(
destination=server_name,
path="/_matrix/key/v2/server/"
+ urllib.parse.quote(requested_key_id),
+ urllib.parse.quote(requested_key_id, safe=""),
ignore_backoff=True,
# we only give the remote server 10s to respond. It should be an
# easy request to handle, so if it doesn't reply within 10s, it's

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@ -469,6 +469,18 @@ class ServerKeyFetcherTestCase(unittest.HomeserverTestCase):
keys = self.get_success(fetcher.get_keys(SERVER_NAME, ["key1"], 0))
self.assertEqual(keys, {})
def test_keyid_containing_forward_slash(self) -> None:
"""We should url-encode any url unsafe chars in key ids.
Detects https://github.com/matrix-org/synapse/issues/14488.
"""
fetcher = ServerKeyFetcher(self.hs)
self.get_success(fetcher.get_keys("example.com", ["key/potato"], 0))
self.http_client.get_json.assert_called_once()
args, kwargs = self.http_client.get_json.call_args
self.assertEqual(kwargs["path"], "/_matrix/key/v2/server/key%2Fpotato")
class PerspectivesKeyFetcherTestCase(unittest.HomeserverTestCase):
def make_homeserver(self, reactor, clock):