storage/appservice: make appservice methods only relying on the cache synchronous

10 files changed, 31 insertions, 41 deletions

diff --git a/synapse/api/auth.py b/synapse/api/auth.py
index e75fd518be..27599124d2 100644
--- a/synapse/api/auth.py
+++ b/synapse/api/auth.py
@@ -653,7 +653,7 @@ class Auth(object):
 
     @defer.inlineCallbacks
     def _get_appservice_user_id(self, request):
-        app_service = yield self.store.get_app_service_by_token(
+        app_service = self.store.get_app_service_by_token(
             get_access_token_from_request(
                 request, self.TOKEN_NOT_FOUND_HTTP_STATUS
             )
@@ -855,13 +855,12 @@ class Auth(object):
         }
         defer.returnValue(user_info)
 
-    @defer.inlineCallbacks
     def get_appservice_by_req(self, request):
         try:
             token = get_access_token_from_request(
                 request, self.TOKEN_NOT_FOUND_HTTP_STATUS
             )
-            service = yield self.store.get_app_service_by_token(token)
+            service = self.store.get_app_service_by_token(token)
             if not service:
                 logger.warn("Unrecognised appservice access token: %s" % (token,))
                 raise AuthError(
@@ -870,7 +869,7 @@ class Auth(object):
                     errcode=Codes.UNKNOWN_TOKEN
                 )
             request.authenticated_entity = service.sender
-            defer.returnValue(service)
+            return defer.succeed(service)
         except KeyError:
             raise AuthError(
                 self.TOKEN_NOT_FOUND_HTTP_STATUS, "Missing access token."
diff --git a/synapse/handlers/appservice.py b/synapse/handlers/appservice.py
index 88fa0bb2e4..05af54d31b 100644
--- a/synapse/handlers/appservice.py
+++ b/synapse/handlers/appservice.py
@@ -59,7 +59,7 @@ class ApplicationServicesHandler(object):
         Args:
             current_id(int): The current maximum ID.
         """
-        services = yield self.store.get_app_services()
+        services = self.store.get_app_services()
         if not services or not self.notify_appservices:
             return
 
@@ -142,7 +142,7 @@ class ApplicationServicesHandler(object):
             association can be found.
         """
         room_alias_str = room_alias.to_string()
-        services = yield self.store.get_app_services()
+        services = self.store.get_app_services()
         alias_query_services = [
             s for s in services if (
                 s.is_interested_in_alias(room_alias_str)
@@ -177,7 +177,7 @@ class ApplicationServicesHandler(object):
 
     @defer.inlineCallbacks
     def get_3pe_protocols(self, only_protocol=None):
-        services = yield self.store.get_app_services()
+        services = self.store.get_app_services()
         protocols = {}
 
         # Collect up all the individual protocol responses out of the ASes
@@ -224,7 +224,7 @@ class ApplicationServicesHandler(object):
             list<ApplicationService>: A list of services interested in this
             event based on the service regex.
         """
-        services = yield self.store.get_app_services()
+        services = self.store.get_app_services()
         interested_list = [
             s for s in services if (
                 yield s.is_interested(event, self.store)
@@ -232,23 +232,21 @@ class ApplicationServicesHandler(object):
         ]
         defer.returnValue(interested_list)
 
-    @defer.inlineCallbacks
     def _get_services_for_user(self, user_id):
-        services = yield self.store.get_app_services()
+        services = self.store.get_app_services()
         interested_list = [
             s for s in services if (
                 s.is_interested_in_user(user_id)
             )
         ]
-        defer.returnValue(interested_list)
+        return defer.succeed(interested_list)
 
-    @defer.inlineCallbacks
     def _get_services_for_3pn(self, protocol):
-        services = yield self.store.get_app_services()
+        services = self.store.get_app_services()
         interested_list = [
             s for s in services if s.is_interested_in_protocol(protocol)
         ]
-        defer.returnValue(interested_list)
+        return defer.succeed(interested_list)
 
     @defer.inlineCallbacks
     def _is_unknown_user(self, user_id):
@@ -264,7 +262,7 @@ class ApplicationServicesHandler(object):
             return
 
         # user not found; could be the AS though, so check.
-        services = yield self.store.get_app_services()
+        services = self.store.get_app_services()
         service_list = [s for s in services if s.sender == user_id]
         defer.returnValue(len(service_list) == 0)
 
diff --git a/synapse/handlers/directory.py b/synapse/handlers/directory.py
index 14352985e2..c00274afc3 100644
--- a/synapse/handlers/directory.py
+++ b/synapse/handlers/directory.py
@@ -288,13 +288,12 @@ class DirectoryHandler(BaseHandler):
             result = yield as_handler.query_room_alias_exists(room_alias)
         defer.returnValue(result)
 
-    @defer.inlineCallbacks
     def can_modify_alias(self, alias, user_id=None):
         # Any application service "interested" in an alias they are regexing on
         # can modify the alias.
         # Users can only modify the alias if ALL the interested services have
         # non-exclusive locks on the alias (or there are no interested services)
-        services = yield self.store.get_app_services()
+        services = self.store.get_app_services()
         interested_services = [
             s for s in services if s.is_interested_in_alias(alias.to_string())
         ]
@@ -302,14 +301,12 @@ class DirectoryHandler(BaseHandler):
         for service in interested_services:
             if user_id == service.sender:
                 # this user IS the app service so they can do whatever they like
-                defer.returnValue(True)
-                return
+                return defer.succeed(True)
             elif service.is_exclusive_alias(alias.to_string()):
                 # another service has an exclusive lock on this alias.
-                defer.returnValue(False)
-                return
+                return defer.succeed(False)
         # either no interested services, or no service with an exclusive lock
-        defer.returnValue(True)
+        return defer.succeed(True)
 
     @defer.inlineCallbacks
     def _user_can_delete_alias(self, alias, user_id):
diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py
index dd75c4fecf..19329057d5 100644
--- a/synapse/handlers/register.py
+++ b/synapse/handlers/register.py
@@ -194,7 +194,7 @@ class RegistrationHandler(BaseHandler):
     def appservice_register(self, user_localpart, as_token):
         user = UserID(user_localpart, self.hs.hostname)
         user_id = user.to_string()
-        service = yield self.store.get_app_service_by_token(as_token)
+        service = self.store.get_app_service_by_token(as_token)
         if not service:
             raise AuthError(403, "Invalid application service token.")
         if not service.is_interested_in_user(user_id):
@@ -305,11 +305,10 @@ class RegistrationHandler(BaseHandler):
             # XXX: This should be a deferred list, shouldn't it?
             yield identity_handler.bind_threepid(c, user_id)
 
-    @defer.inlineCallbacks
     def check_user_id_not_appservice_exclusive(self, user_id, allowed_appservice=None):
         # valid user IDs must not clash with any user ID namespaces claimed by
         # application services.
-        services = yield self.store.get_app_services()
+        services = self.store.get_app_services()
         interested_services = [
             s for s in services
             if s.is_interested_in_user(user_id)
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index cbd26f8f95..a7f533f7be 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -437,7 +437,7 @@ class RoomEventSource(object):
             logger.warn("Stream has topological part!!!! %r", from_key)
             from_key = "s%s" % (from_token.stream,)
 
-        app_service = yield self.store.get_app_service_by_user_id(
+        app_service = self.store.get_app_service_by_user_id(
             user.to_string()
         )
         if app_service:
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index b5962f4f5a..1f910ff814 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -788,7 +788,7 @@ class SyncHandler(object):
 
         assert since_token
 
-        app_service = yield self.store.get_app_service_by_user_id(user_id)
+        app_service = self.store.get_app_service_by_user_id(user_id)
         if app_service:
             rooms = yield self.store.get_app_service_rooms(app_service)
             joined_room_ids = set(r.room_id for r in rooms)
diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py
index 3046da7aec..fe4480b363 100644
--- a/synapse/rest/client/v1/register.py
+++ b/synapse/rest/client/v1/register.py
@@ -391,7 +391,7 @@ class CreateUserRestServlet(ClientV1RestServlet):
         user_json = parse_json_object_from_request(request)
 
         access_token = get_access_token_from_request(request)
-        app_service = yield self.store.get_app_service_by_token(
+        app_service = self.store.get_app_service_by_token(
             access_token
         )
         if not app_service:
diff --git a/synapse/storage/appservice.py b/synapse/storage/appservice.py
index a854a87eab..3d5994a580 100644
--- a/synapse/storage/appservice.py
+++ b/synapse/storage/appservice.py
@@ -37,7 +37,7 @@ class ApplicationServiceStore(SQLBaseStore):
         )
 
     def get_app_services(self):
-        return defer.succeed(self.services_cache)
+        return self.services_cache
 
     def get_app_service_by_user_id(self, user_id):
         """Retrieve an application service from their user ID.
@@ -54,8 +54,8 @@ class ApplicationServiceStore(SQLBaseStore):
         """
         for service in self.services_cache:
             if service.sender == user_id:
-                return defer.succeed(service)
-        return defer.succeed(None)
+                return service
+        return None
 
     def get_app_service_by_token(self, token):
         """Get the application service with the given appservice token.
@@ -67,8 +67,8 @@ class ApplicationServiceStore(SQLBaseStore):
         """
         for service in self.services_cache:
             if service.token == token:
-                return defer.succeed(service)
-        return defer.succeed(None)
+                return service
+        return None
 
     def get_app_service_rooms(self, service):
         """Get a list of RoomsForUser for this application service.
@@ -163,7 +163,7 @@ class ApplicationServiceTransactionStore(SQLBaseStore):
             ["as_id"]
         )
         # NB: This assumes this class is linked with ApplicationServiceStore
-        as_list = yield self.get_app_services()
+        as_list = self.get_app_services()
         services = []
 
         for res in results:
diff --git a/tests/rest/client/v2_alpha/test_register.py b/tests/rest/client/v2_alpha/test_register.py
index 8ac56a1fb2..e9cb416e4b 100644
--- a/tests/rest/client/v2_alpha/test_register.py
+++ b/tests/rest/client/v2_alpha/test_register.py
@@ -19,7 +19,7 @@ class RegisterRestServletTestCase(unittest.TestCase):
 
         self.appservice = None
         self.auth = Mock(get_appservice_by_req=Mock(
-            side_effect=lambda x: defer.succeed(self.appservice))
+            side_effect=lambda x: self.appservice)
         )
 
         self.auth_result = (False, None, None, None)
diff --git a/tests/storage/test_appservice.py b/tests/storage/test_appservice.py
index 3e2862daae..f3df8302da 100644
--- a/tests/storage/test_appservice.py
+++ b/tests/storage/test_appservice.py
@@ -71,14 +71,12 @@ class ApplicationServiceStoreTestCase(unittest.TestCase):
             outfile.write(yaml.dump(as_yaml))
             self.as_yaml_files.append(as_token)
 
-    @defer.inlineCallbacks
     def test_retrieve_unknown_service_token(self):
-        service = yield self.store.get_app_service_by_token("invalid_token")
+        service = self.store.get_app_service_by_token("invalid_token")
         self.assertEquals(service, None)
 
-    @defer.inlineCallbacks
     def test_retrieval_of_service(self):
-        stored_service = yield self.store.get_app_service_by_token(
+        stored_service = self.store.get_app_service_by_token(
             self.as_token
         )
         self.assertEquals(stored_service.token, self.as_token)
@@ -97,9 +95,8 @@ class ApplicationServiceStoreTestCase(unittest.TestCase):
             []
         )
 
-    @defer.inlineCallbacks
     def test_retrieval_of_all_services(self):
-        services = yield self.store.get_app_services()
+        services = self.store.get_app_services()
         self.assertEquals(len(services), 3)