diff --git a/changelog.d/10947.bugfix b/changelog.d/10947.bugfix
new file mode 100644
index 0000000000..40c70d3ece
--- /dev/null
+++ b/changelog.d/10947.bugfix
@@ -0,0 +1 @@
+Fixes a long-standing bug wherin deactivated users still count towards the mau limit.
\ No newline at end of file
diff --git a/synapse/handlers/deactivate_account.py b/synapse/handlers/deactivate_account.py
index 9ae5b7750e..12bdca7445 100644
--- a/synapse/handlers/deactivate_account.py
+++ b/synapse/handlers/deactivate_account.py
@@ -133,6 +133,10 @@ class DeactivateAccountHandler(BaseHandler):
# delete from user directory
await self.user_directory_handler.handle_local_user_deactivated(user_id)
+ # If the user is present in the monthly active users table
+ # remove them
+ await self.store.remove_deactivated_user_from_mau_table(user_id)
+
# Mark the user as erased, if they asked for that
if erase_data:
user = UserID.from_string(user_id)
diff --git a/synapse/storage/databases/main/monthly_active_users.py b/synapse/storage/databases/main/monthly_active_users.py
index a14ac03d4b..ec4d47a560 100644
--- a/synapse/storage/databases/main/monthly_active_users.py
+++ b/synapse/storage/databases/main/monthly_active_users.py
@@ -354,3 +354,27 @@ class MonthlyActiveUsersStore(MonthlyActiveUsersWorkerStore):
await self.upsert_monthly_active_user(user_id)
elif now - last_seen_timestamp > LAST_SEEN_GRANULARITY:
await self.upsert_monthly_active_user(user_id)
+
+ async def remove_deactivated_user_from_mau_table(self, user_id: str) -> None:
+ """
+ Removes a deactivated user from the monthly active user
+ table and resets affected caches.
+
+ Args:
+ user_id(str): the user_id to remove
+ """
+
+ rows_deleted = await self.db_pool.simple_delete(
+ table="monthly_active_users",
+ keyvalues={"user_id": user_id},
+ desc="simple_delete",
+ )
+
+ if rows_deleted != 0:
+ await self.invalidate_cache_and_stream(
+ "user_last_seen_monthly_active", (user_id,)
+ )
+ await self.invalidate_cache_and_stream("get_monthly_active_count", ())
+ await self.invalidate_cache_and_stream(
+ "get_monthly_active_count_by_service", ()
+ )
diff --git a/tests/test_mau.py b/tests/test_mau.py
index 80ab40e255..c683c8937e 100644
--- a/tests/test_mau.py
+++ b/tests/test_mau.py
@@ -13,11 +13,11 @@
# limitations under the License.
"""Tests REST events for /rooms paths."""
-
+import synapse.rest.admin
from synapse.api.constants import APP_SERVICE_REGISTRATION_TYPE, LoginType
from synapse.api.errors import Codes, HttpResponseException, SynapseError
from synapse.appservice import ApplicationService
-from synapse.rest.client import register, sync
+from synapse.rest.client import login, profile, register, sync
from tests import unittest
from tests.unittest import override_config
@@ -26,7 +26,13 @@ from tests.utils import default_config
class TestMauLimit(unittest.HomeserverTestCase):
- servlets = [register.register_servlets, sync.register_servlets]
+ servlets = [
+ register.register_servlets,
+ sync.register_servlets,
+ synapse.rest.admin.register_servlets_for_client_rest_resource,
+ profile.register_servlets,
+ login.register_servlets,
+ ]
def default_config(self):
config = default_config("test")
@@ -229,6 +235,31 @@ class TestMauLimit(unittest.HomeserverTestCase):
self.reactor.advance(100)
self.assertEqual(2, self.successResultOf(count))
+ def test_deactivated_users_dont_count_towards_mau(self):
+ user1 = self.register_user("madonna", "password")
+ self.register_user("prince", "password2")
+ self.register_user("frodo", "onering", True)
+
+ token1 = self.login("madonna", "password")
+ token2 = self.login("prince", "password2")
+ admin_token = self.login("frodo", "onering")
+
+ self.do_sync_for_user(token1)
+ self.do_sync_for_user(token2)
+
+ # Check that mau count is what we expect
+ count = self.get_success(self.store.get_monthly_active_count())
+ self.assertEqual(count, 2)
+
+ # Deactivate user1
+ url = "/_synapse/admin/v1/deactivate/%s" % user1
+ channel = self.make_request("POST", url, access_token=admin_token)
+ self.assertIn("success", channel.json_body["id_server_unbind_result"])
+
+ # Check that deactivated user is no longer counted
+ count = self.get_success(self.store.get_monthly_active_count())
+ self.assertEqual(count, 1)
+
def create_user(self, localpart, token=None, appservice=False):
request_data = {
"username": localpart,
|