2 files changed, 18 insertions, 9 deletions
diff --git a/synapse/http/matrixfederationclient.py b/synapse/http/matrixfederationclient.py
index 4f59224686..203d723d41 100644
--- a/synapse/http/matrixfederationclient.py
+++ b/synapse/http/matrixfederationclient.py
@@ -21,6 +21,7 @@ import typing
 import urllib.parse
 from io import BytesIO, StringIO
 from typing import (
+    TYPE_CHECKING,
     Callable,
     Dict,
     Generic,
@@ -73,6 +74,9 @@ from synapse.util import json_decoder
 from synapse.util.async_helpers import timeout_deferred
 from synapse.util.metrics import Measure
 
+if TYPE_CHECKING:
+    from synapse.server import HomeServer
+
 logger = logging.getLogger(__name__)
 
 outgoing_requests_counter = Counter(
@@ -319,7 +323,7 @@ class MatrixFederationHttpClient:
             requests.
     """
 
-    def __init__(self, hs, tls_client_options_factory):
+    def __init__(self, hs: "HomeServer", tls_client_options_factory):
         self.hs = hs
         self.signing_key = hs.signing_key
         self.server_name = hs.hostname
@@ -711,7 +715,7 @@ class MatrixFederationHttpClient:
         Returns:
             A list of headers to be added as "Authorization:" headers
         """
-        request = {
+        request: JsonDict = {
             "method": method.decode("ascii"),
             "uri": url_bytes.decode("ascii"),
             "origin": self.server_name,
diff --git a/synapse/http/server.py b/synapse/http/server.py
index 897ba5e453..1af0d9a31d 100644
--- a/synapse/http/server.py
+++ b/synapse/http/server.py
@@ -22,6 +22,7 @@ import urllib
 from http import HTTPStatus
 from inspect import isawaitable
 from typing import (
+    TYPE_CHECKING,
     Any,
     Awaitable,
     Callable,
@@ -61,6 +62,9 @@ from synapse.util import json_encoder
 from synapse.util.caches import intern_dict
 from synapse.util.iterutils import chunk_seq
 
+if TYPE_CHECKING:
+    from synapse.server import HomeServer
+
 logger = logging.getLogger(__name__)
 
 HTML_ERROR_TEMPLATE = """<!DOCTYPE html>
@@ -343,6 +347,11 @@ class DirectServeJsonResource(_AsyncResource):
         return_json_error(f, request)
 
 
+_PathEntry = collections.namedtuple(
+    "_PathEntry", ["pattern", "callback", "servlet_classname"]
+)
+
+
 class JsonResource(DirectServeJsonResource):
     """This implements the HttpServer interface and provides JSON support for
     Resources.
@@ -359,14 +368,10 @@ class JsonResource(DirectServeJsonResource):
 
     isLeaf = True
 
-    _PathEntry = collections.namedtuple(
-        "_PathEntry", ["pattern", "callback", "servlet_classname"]
-    )
-
-    def __init__(self, hs, canonical_json=True, extract_context=False):
+    def __init__(self, hs: "HomeServer", canonical_json=True, extract_context=False):
         super().__init__(canonical_json, extract_context)
         self.clock = hs.get_clock()
-        self.path_regexs = {}
+        self.path_regexs: Dict[bytes, List[_PathEntry]] = {}
         self.hs = hs
 
     def register_paths(self, method, path_patterns, callback, servlet_classname):
@@ -391,7 +396,7 @@ class JsonResource(DirectServeJsonResource):
         for path_pattern in path_patterns:
             logger.debug("Registering for %s %s", method, path_pattern.pattern)
             self.path_regexs.setdefault(method, []).append(
-                self._PathEntry(path_pattern, callback, servlet_classname)
+                _PathEntry(path_pattern, callback, servlet_classname)
             )
 
     def _get_handler_for_request(