Add support for local custom authorizers

BuiltinAuthorizer will now work in local mode. Authorizer types that
cannot be run locally will now simply allow the requests to proceed as
if there were no authorizer to allow for local testing.

chalice/app.pyi

@@ -1,4 +1,5 @@
 from typing import Dict, List, Any, Callable, Union, Optional
+from chalice.local import LambdaContext
 
 __version__ = ... # type: str
 
@@ -109,9 +110,7 @@ class Chalice(object):
     api = ... # type: APIGateway
     routes = ... # type: Dict[str, Dict[str, RouteEntry]]
     current_request = ... # type: Request
-    # TODO: Change lambda_context to a real type once we have one for local
-    # API Gateway
-    lambda_context = ... # type: Any
+    lambda_context = ... # type: LambdaContext
     debug = ... # type: bool
     authorizers = ... # type: Dict[str, Dict[str, Any]]
     builtin_auth_handlers = ... # type: List[BuiltinAuthConfig]

chalice/cli/__init__.py

@@ -99,7 +99,7 @@ def run_local_server(factory, port, env):
     # The app-specific logger (app.log) will still continue
     # to work.
     logging.basicConfig(stream=sys.stdout)
-    server = factory.create_local_server(app_obj, port)
+    server = factory.create_local_server(app_obj, config, port)
     server.serve_forever()
 
 

chalice/cli/factory.py

@@ -185,6 +185,6 @@ def load_project_config(self):
         with open(config_file) as f:
             return json.loads(f.read())
 
-    def create_local_server(self, app_obj, port):
-        # type: (Chalice, int) -> local.LocalDevServer
-        return local.create_local_server(app_obj, port)
+    def create_local_server(self, app_obj, config, port):
+        # type: (Chalice, Config, int) -> local.LocalDevServer
+        return local.create_local_server(app_obj, config, port)