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-rw-r--r--synapse/server_notices/consent_server_notices.py18
-rw-r--r--synapse/server_notices/resource_limits_server_notices.py11
-rw-r--r--synapse/server_notices/server_notices_manager.py2
-rw-r--r--synapse/server_notices/server_notices_sender.py18
-rw-r--r--synapse/server_notices/worker_server_notices_sender.py11
5 files changed, 32 insertions, 28 deletions
diff --git a/synapse/server_notices/consent_server_notices.py b/synapse/server_notices/consent_server_notices.py
index 9137c4edb1..a9349bf9a1 100644
--- a/synapse/server_notices/consent_server_notices.py
+++ b/synapse/server_notices/consent_server_notices.py
@@ -13,13 +13,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
-from typing import Any
+from typing import TYPE_CHECKING, Any, Set
 
 from synapse.api.errors import SynapseError
 from synapse.api.urls import ConsentURIBuilder
 from synapse.config import ConfigError
 from synapse.types import get_localpart_from_id
 
+if TYPE_CHECKING:
+    from synapse.server import HomeServer
+
 logger = logging.getLogger(__name__)
 
 
@@ -28,16 +31,11 @@ class ConsentServerNotices:
     privacy policy consent, and sends one if we do.
     """
 
-    def __init__(self, hs):
-        """
-
-        Args:
-            hs (synapse.server.HomeServer):
-        """
+    def __init__(self, hs: "HomeServer"):
         self._server_notices_manager = hs.get_server_notices_manager()
         self._store = hs.get_datastore()
 
-        self._users_in_progress = set()
+        self._users_in_progress = set()  # type: Set[str]
 
         self._current_consent_version = hs.config.user_consent_version
         self._server_notice_content = hs.config.user_consent_server_notice_content
@@ -73,6 +71,10 @@ class ConsentServerNotices:
         try:
             u = await self._store.get_user_by_id(user_id)
 
+            # The user doesn't exist.
+            if u is None:
+                return
+
             if u["is_guest"] and not self._send_to_guests:
                 # don't send to guests
                 return
diff --git a/synapse/server_notices/resource_limits_server_notices.py b/synapse/server_notices/resource_limits_server_notices.py
index 6652451346..a18a2e76c9 100644
--- a/synapse/server_notices/resource_limits_server_notices.py
+++ b/synapse/server_notices/resource_limits_server_notices.py
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import logging
-from typing import List, Tuple
+from typing import TYPE_CHECKING, List, Tuple
 
 from synapse.api.constants import (
     EventTypes,
@@ -24,6 +24,9 @@ from synapse.api.constants import (
 from synapse.api.errors import AuthError, ResourceLimitError, SynapseError
 from synapse.server_notices.server_notices_manager import SERVER_NOTICE_ROOM_TAG
 
+if TYPE_CHECKING:
+    from synapse.server import HomeServer
+
 logger = logging.getLogger(__name__)
 
 
@@ -32,11 +35,7 @@ class ResourceLimitsServerNotices:
     ensures that the client is kept up to date.
     """
 
-    def __init__(self, hs):
-        """
-        Args:
-            hs (synapse.server.HomeServer):
-        """
+    def __init__(self, hs: "HomeServer"):
         self._server_notices_manager = hs.get_server_notices_manager()
         self._store = hs.get_datastore()
         self._auth = hs.get_auth()
diff --git a/synapse/server_notices/server_notices_manager.py b/synapse/server_notices/server_notices_manager.py
index c46b2f047d..144e1da78e 100644
--- a/synapse/server_notices/server_notices_manager.py
+++ b/synapse/server_notices/server_notices_manager.py
@@ -58,7 +58,7 @@ class ServerNoticesManager:
         user_id: str,
         event_content: dict,
         type: str = EventTypes.Message,
-        state_key: Optional[bool] = None,
+        state_key: Optional[str] = None,
     ) -> EventBase:
         """Send a notice to the given user
 
diff --git a/synapse/server_notices/server_notices_sender.py b/synapse/server_notices/server_notices_sender.py
index 6870b67ca0..965c645889 100644
--- a/synapse/server_notices/server_notices_sender.py
+++ b/synapse/server_notices/server_notices_sender.py
@@ -12,25 +12,27 @@
 # 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 typing import TYPE_CHECKING, Iterable, Union
 
 from synapse.server_notices.consent_server_notices import ConsentServerNotices
 from synapse.server_notices.resource_limits_server_notices import (
     ResourceLimitsServerNotices,
 )
+from synapse.server_notices.worker_server_notices_sender import (
+    WorkerServerNoticesSender,
+)
+
+if TYPE_CHECKING:
+    from synapse.server import HomeServer
 
 
-class ServerNoticesSender:
+class ServerNoticesSender(WorkerServerNoticesSender):
     """A centralised place which sends server notices automatically when
     Certain Events take place
     """
 
-    def __init__(self, hs):
-        """
-
-        Args:
-            hs (synapse.server.HomeServer):
-        """
+    def __init__(self, hs: "HomeServer"):
+        super().__init__(hs)
         self._server_notices = (
             ConsentServerNotices(hs),
             ResourceLimitsServerNotices(hs),
diff --git a/synapse/server_notices/worker_server_notices_sender.py b/synapse/server_notices/worker_server_notices_sender.py
index 9273e61895..c76bd57460 100644
--- a/synapse/server_notices/worker_server_notices_sender.py
+++ b/synapse/server_notices/worker_server_notices_sender.py
@@ -12,16 +12,17 @@
 # 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 TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from synapse.server import HomeServer
 
 
 class WorkerServerNoticesSender:
     """Stub impl of ServerNoticesSender which does nothing"""
 
-    def __init__(self, hs):
-        """
-        Args:
-            hs (synapse.server.HomeServer):
-        """
+    def __init__(self, hs: "HomeServer"):
+        pass
 
     async def on_user_syncing(self, user_id: str) -> None:
         """Called when the user performs a sync operation.