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-rw-r--r--synapse/server_notices/consent_server_notices.py12
-rw-r--r--synapse/server_notices/resource_limits_server_notices.py43
-rw-r--r--synapse/server_notices/server_notices_manager.py29
-rw-r--r--synapse/server_notices/server_notices_sender.py12
-rw-r--r--synapse/server_notices/worker_server_notices_sender.py17
5 files changed, 54 insertions, 59 deletions
diff --git a/synapse/server_notices/consent_server_notices.py b/synapse/server_notices/consent_server_notices.py
index 3bfc8d7278..089cfef0b3 100644
--- a/synapse/server_notices/consent_server_notices.py
+++ b/synapse/server_notices/consent_server_notices.py
@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
+from typing import Any
 
 from synapse.api.errors import SynapseError
 from synapse.api.urls import ConsentURIBuilder
@@ -55,14 +56,11 @@ class ConsentServerNotices(object):
 
             self._consent_uri_builder = ConsentURIBuilder(hs.config)
 
-    async def maybe_send_server_notice_to_user(self, user_id):
+    async def maybe_send_server_notice_to_user(self, user_id: str) -> None:
         """Check if we need to send a notice to this user, and does so if so
 
         Args:
-            user_id (str): user to check
-
-        Returns:
-            Deferred
+            user_id: user to check
         """
         if self._server_notice_content is None:
             # not enabled
@@ -105,7 +103,7 @@ class ConsentServerNotices(object):
             self._users_in_progress.remove(user_id)
 
 
-def copy_with_str_subst(x, substitutions):
+def copy_with_str_subst(x: Any, substitutions: Any) -> Any:
     """Deep-copy a structure, carrying out string substitions on any strings
 
     Args:
@@ -121,7 +119,7 @@ def copy_with_str_subst(x, substitutions):
     if isinstance(x, dict):
         return {k: copy_with_str_subst(v, substitutions) for (k, v) in x.items()}
     if isinstance(x, (list, tuple)):
-        return [copy_with_str_subst(y) for y in x]
+        return [copy_with_str_subst(y, substitutions) for y in x]
 
     # assume it's uninterested and can be shallow-copied.
     return x
diff --git a/synapse/server_notices/resource_limits_server_notices.py b/synapse/server_notices/resource_limits_server_notices.py
index 4404ceff93..c2faef6eab 100644
--- a/synapse/server_notices/resource_limits_server_notices.py
+++ b/synapse/server_notices/resource_limits_server_notices.py
@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
+from typing import List, Tuple
 
 from synapse.api.constants import (
     EventTypes,
@@ -52,7 +53,7 @@ class ResourceLimitsServerNotices(object):
             and not hs.config.hs_disabled
         )
 
-    async def maybe_send_server_notice_to_user(self, user_id):
+    async def maybe_send_server_notice_to_user(self, user_id: str) -> None:
         """Check if we need to send a notice to this user, this will be true in
         two cases.
         1. The server has reached its limit does not reflect this
@@ -60,10 +61,7 @@ class ResourceLimitsServerNotices(object):
         actually the server is fine
 
         Args:
-            user_id (str): user to check
-
-        Returns:
-            Deferred
+            user_id: user to check
         """
         if not self._enabled:
             return
@@ -115,19 +113,21 @@ class ResourceLimitsServerNotices(object):
             elif not currently_blocked and limit_msg:
                 # Room is not notifying of a block, when it ought to be.
                 await self._apply_limit_block_notification(
-                    user_id, limit_msg, limit_type
+                    user_id, limit_msg, limit_type  # type: ignore
                 )
         except SynapseError as e:
             logger.error("Error sending resource limits server notice: %s", e)
 
-    async def _remove_limit_block_notification(self, user_id, ref_events):
+    async def _remove_limit_block_notification(
+        self, user_id: str, ref_events: List[str]
+    ) -> None:
         """Utility method to remove limit block notifications from the server
         notices room.
 
         Args:
-            user_id (str): user to notify
-            ref_events (list[str]): The event_ids of pinned events that are unrelated to
-            limit blocking and need to be preserved.
+            user_id: user to notify
+            ref_events: The event_ids of pinned events that are unrelated to
+                limit blocking and need to be preserved.
         """
         content = {"pinned": ref_events}
         await self._server_notices_manager.send_notice(
@@ -135,16 +135,16 @@ class ResourceLimitsServerNotices(object):
         )
 
     async def _apply_limit_block_notification(
-        self, user_id, event_body, event_limit_type
-    ):
+        self, user_id: str, event_body: str, event_limit_type: str
+    ) -> None:
         """Utility method to apply limit block notifications in the server
         notices room.
 
         Args:
-            user_id (str): user to notify
-            event_body(str): The human readable text that describes the block.
-            event_limit_type(str): Specifies the type of block e.g. monthly active user
-            limit has been exceeded.
+            user_id: user to notify
+            event_body: The human readable text that describes the block.
+            event_limit_type: Specifies the type of block e.g. monthly active user
+                limit has been exceeded.
         """
         content = {
             "body": event_body,
@@ -162,7 +162,7 @@ class ResourceLimitsServerNotices(object):
             user_id, content, EventTypes.Pinned, ""
         )
 
-    async def _check_and_set_tags(self, user_id, room_id):
+    async def _check_and_set_tags(self, user_id: str, room_id: str) -> None:
         """
         Since server notices rooms were originally not with tags,
         important to check that tags have been set correctly
@@ -182,17 +182,16 @@ class ResourceLimitsServerNotices(object):
             )
             self._notifier.on_new_event("account_data_key", max_id, users=[user_id])
 
-    async def _is_room_currently_blocked(self, room_id):
+    async def _is_room_currently_blocked(self, room_id: str) -> Tuple[bool, List[str]]:
         """
         Determines if the room is currently blocked
 
         Args:
-            room_id(str): The room id of the server notices room
+            room_id: The room id of the server notices room
 
         Returns:
-            Deferred[Tuple[bool, List]]:
             bool: Is the room currently blocked
-            list: The list of pinned events that are unrelated to limit blocking
+            list: The list of pinned event IDs that are unrelated to limit blocking
             This list can be used as a convenience in the case where the block
             is to be lifted and the remaining pinned event references need to be
             preserved
@@ -207,7 +206,7 @@ class ResourceLimitsServerNotices(object):
             # The user has yet to join the server notices room
             pass
 
-        referenced_events = []
+        referenced_events = []  # type: List[str]
         if pinned_state_event is not None:
             referenced_events = list(pinned_state_event.content.get("pinned", []))
 
diff --git a/synapse/server_notices/server_notices_manager.py b/synapse/server_notices/server_notices_manager.py
index bf2454c01c..ed96aa8571 100644
--- a/synapse/server_notices/server_notices_manager.py
+++ b/synapse/server_notices/server_notices_manager.py
@@ -13,8 +13,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
+from typing import Optional
 
 from synapse.api.constants import EventTypes, Membership, RoomCreationPreset
+from synapse.events import EventBase
 from synapse.types import UserID, create_requester
 from synapse.util.caches.descriptors import cached
 
@@ -50,20 +52,21 @@ class ServerNoticesManager(object):
         return self._config.server_notices_mxid is not None
 
     async def send_notice(
-        self, user_id, event_content, type=EventTypes.Message, state_key=None
-    ):
+        self,
+        user_id: str,
+        event_content: dict,
+        type: str = EventTypes.Message,
+        state_key: Optional[bool] = None,
+    ) -> EventBase:
         """Send a notice to the given user
 
         Creates the server notices room, if none exists.
 
         Args:
-            user_id (str): mxid of user to send event to.
-            event_content (dict): content of event to send
-            type(EventTypes): type of event
-            is_state_event(bool): Is the event a state event
-
-        Returns:
-            Deferred[FrozenEvent]
+            user_id: mxid of user to send event to.
+            event_content: content of event to send
+            type: type of event
+            is_state_event: Is the event a state event
         """
         room_id = await self.get_or_create_notice_room_for_user(user_id)
         await self.maybe_invite_user_to_room(user_id, room_id)
@@ -89,17 +92,17 @@ class ServerNoticesManager(object):
         return event
 
     @cached()
-    async def get_or_create_notice_room_for_user(self, user_id):
+    async def get_or_create_notice_room_for_user(self, user_id: str) -> str:
         """Get the room for notices for a given user
 
         If we have not yet created a notice room for this user, create it, but don't
         invite the user to it.
 
         Args:
-            user_id (str): complete user id for the user we want a room for
+            user_id: complete user id for the user we want a room for
 
         Returns:
-            str: room id of notice room.
+            room id of notice room.
         """
         if not self.is_enabled():
             raise Exception("Server notices not enabled")
@@ -163,7 +166,7 @@ class ServerNoticesManager(object):
         logger.info("Created server notices room %s for %s", room_id, user_id)
         return room_id
 
-    async def maybe_invite_user_to_room(self, user_id: str, room_id: str):
+    async def maybe_invite_user_to_room(self, user_id: str, room_id: str) -> None:
         """Invite the given user to the given server room, unless the user has already
         joined or been invited to it.
 
diff --git a/synapse/server_notices/server_notices_sender.py b/synapse/server_notices/server_notices_sender.py
index be74e86641..a754f75db4 100644
--- a/synapse/server_notices/server_notices_sender.py
+++ b/synapse/server_notices/server_notices_sender.py
@@ -12,6 +12,8 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
+from typing import Iterable, Union
+
 from synapse.server_notices.consent_server_notices import ConsentServerNotices
 from synapse.server_notices.resource_limits_server_notices import (
     ResourceLimitsServerNotices,
@@ -32,22 +34,22 @@ class ServerNoticesSender(object):
         self._server_notices = (
             ConsentServerNotices(hs),
             ResourceLimitsServerNotices(hs),
-        )
+        )  # type: Iterable[Union[ConsentServerNotices, ResourceLimitsServerNotices]]
 
-    async def on_user_syncing(self, user_id):
+    async def on_user_syncing(self, user_id: str) -> None:
         """Called when the user performs a sync operation.
 
         Args:
-            user_id (str): mxid of user who synced
+            user_id: mxid of user who synced
         """
         for sn in self._server_notices:
             await sn.maybe_send_server_notice_to_user(user_id)
 
-    async def on_user_ip(self, user_id):
+    async def on_user_ip(self, user_id: str) -> None:
         """Called on the master when a worker process saw a client request.
 
         Args:
-            user_id (str): mxid
+            user_id: mxid
         """
         # The synchrotrons use a stubbed version of ServerNoticesSender, so
         # we check for notices to send to the user in on_user_ip as well as
diff --git a/synapse/server_notices/worker_server_notices_sender.py b/synapse/server_notices/worker_server_notices_sender.py
index 245ec7c64f..e9390b19da 100644
--- a/synapse/server_notices/worker_server_notices_sender.py
+++ b/synapse/server_notices/worker_server_notices_sender.py
@@ -12,7 +12,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from twisted.internet import defer
 
 
 class WorkerServerNoticesSender(object):
@@ -24,24 +23,18 @@ class WorkerServerNoticesSender(object):
             hs (synapse.server.HomeServer):
         """
 
-    def on_user_syncing(self, user_id):
+    async def on_user_syncing(self, user_id: str) -> None:
         """Called when the user performs a sync operation.
 
         Args:
-            user_id (str): mxid of user who synced
-
-        Returns:
-            Deferred
+            user_id: mxid of user who synced
         """
-        return defer.succeed(None)
+        return None
 
-    def on_user_ip(self, user_id):
+    async def on_user_ip(self, user_id: str) -> None:
         """Called on the master when a worker process saw a client request.
 
         Args:
-            user_id (str): mxid
-
-        Returns:
-            Deferred
+            user_id: mxid
         """
         raise AssertionError("on_user_ip unexpectedly called on worker")