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-rw-r--r--changelog.d/6125.feature1
-rw-r--r--synapse/handlers/deactivate_account.py37
-rw-r--r--tests/rest/client/v2_alpha/test_account.py68
3 files changed, 92 insertions, 14 deletions
diff --git a/changelog.d/6125.feature b/changelog.d/6125.feature
new file mode 100644
index 0000000000..cbe5f8d3c8
--- /dev/null
+++ b/changelog.d/6125.feature
@@ -0,0 +1 @@
+Reject all pending invites for a user during deactivation.
diff --git a/synapse/handlers/deactivate_account.py b/synapse/handlers/deactivate_account.py
index d83912c9a4..63267a0a4c 100644
--- a/synapse/handlers/deactivate_account.py
+++ b/synapse/handlers/deactivate_account.py
@@ -120,6 +120,10 @@ class DeactivateAccountHandler(BaseHandler):
         # parts users from rooms (if it isn't already running)
         self._start_user_parting()
 
+        # Reject all pending invites for the user, so that the user doesn't show up in the
+        # "invited" section of rooms' members list.
+        yield self._reject_pending_invites_for_user(user_id)
+
         # Remove all information on the user from the account_validity table.
         if self._account_validity_enabled:
             yield self.store.delete_account_validity_for_user(user_id)
@@ -129,6 +133,39 @@ class DeactivateAccountHandler(BaseHandler):
 
         return identity_server_supports_unbinding
 
+    @defer.inlineCallbacks
+    def _reject_pending_invites_for_user(self, user_id):
+        """Reject pending invites addressed to a given user ID.
+
+        Args:
+            user_id (str): The user ID to reject pending invites for.
+        """
+        user = UserID.from_string(user_id)
+        pending_invites = yield self.store.get_invited_rooms_for_user(user_id)
+
+        for room in pending_invites:
+            try:
+                yield self._room_member_handler.update_membership(
+                    create_requester(user),
+                    user,
+                    room.room_id,
+                    "leave",
+                    ratelimit=False,
+                    require_consent=False,
+                )
+                logger.info(
+                    "Rejected invite for deactivated user %r in room %r",
+                    user_id,
+                    room.room_id,
+                )
+            except Exception:
+                logger.exception(
+                    "Failed to reject invite for user %r in room %r:"
+                    " ignoring and continuing",
+                    user_id,
+                    room.room_id,
+                )
+
     def _start_user_parting(self):
         """
         Start the process that goes through the table of users
diff --git a/tests/rest/client/v2_alpha/test_account.py b/tests/rest/client/v2_alpha/test_account.py
index 920de41de4..0f51895b81 100644
--- a/tests/rest/client/v2_alpha/test_account.py
+++ b/tests/rest/client/v2_alpha/test_account.py
@@ -23,8 +23,8 @@ from email.parser import Parser
 import pkg_resources
 
 import synapse.rest.admin
-from synapse.api.constants import LoginType
-from synapse.rest.client.v1 import login
+from synapse.api.constants import LoginType, Membership
+from synapse.rest.client.v1 import login, room
 from synapse.rest.client.v2_alpha import account, register
 
 from tests import unittest
@@ -244,16 +244,66 @@ class DeactivateTestCase(unittest.HomeserverTestCase):
         synapse.rest.admin.register_servlets_for_client_rest_resource,
         login.register_servlets,
         account.register_servlets,
+        room.register_servlets,
     ]
 
     def make_homeserver(self, reactor, clock):
-        hs = self.setup_test_homeserver()
-        return hs
+        self.hs = self.setup_test_homeserver()
+        return self.hs
 
     def test_deactivate_account(self):
         user_id = self.register_user("kermit", "test")
         tok = self.login("kermit", "test")
 
+        self.deactivate(user_id, tok)
+
+        store = self.hs.get_datastore()
+
+        # Check that the user has been marked as deactivated.
+        self.assertTrue(self.get_success(store.get_user_deactivated_status(user_id)))
+
+        # Check that this access token has been invalidated.
+        request, channel = self.make_request("GET", "account/whoami")
+        self.render(request)
+        self.assertEqual(request.code, 401)
+
+    @unittest.INFO
+    def test_pending_invites(self):
+        """Tests that deactivating a user rejects every pending invite for them."""
+        store = self.hs.get_datastore()
+
+        inviter_id = self.register_user("inviter", "test")
+        inviter_tok = self.login("inviter", "test")
+
+        invitee_id = self.register_user("invitee", "test")
+        invitee_tok = self.login("invitee", "test")
+
+        # Make @inviter:test invite @invitee:test in a new room.
+        room_id = self.helper.create_room_as(inviter_id, tok=inviter_tok)
+        self.helper.invite(
+            room=room_id, src=inviter_id, targ=invitee_id, tok=inviter_tok
+        )
+
+        # Make sure the invite is here.
+        pending_invites = self.get_success(store.get_invited_rooms_for_user(invitee_id))
+        self.assertEqual(len(pending_invites), 1, pending_invites)
+        self.assertEqual(pending_invites[0].room_id, room_id, pending_invites)
+
+        # Deactivate @invitee:test.
+        self.deactivate(invitee_id, invitee_tok)
+
+        # Check that the invite isn't there anymore.
+        pending_invites = self.get_success(store.get_invited_rooms_for_user(invitee_id))
+        self.assertEqual(len(pending_invites), 0, pending_invites)
+
+        # Check that the membership of @invitee:test in the room is now "leave".
+        memberships = self.get_success(
+            store.get_rooms_for_user_where_membership_is(invitee_id, [Membership.LEAVE])
+        )
+        self.assertEqual(len(memberships), 1, memberships)
+        self.assertEqual(memberships[0].room_id, room_id, memberships)
+
+    def deactivate(self, user_id, tok):
         request_data = json.dumps(
             {
                 "auth": {
@@ -269,13 +319,3 @@ class DeactivateTestCase(unittest.HomeserverTestCase):
         )
         self.render(request)
         self.assertEqual(request.code, 200)
-
-        store = self.hs.get_datastore()
-
-        # Check that the user has been marked as deactivated.
-        self.assertTrue(self.get_success(store.get_user_deactivated_status(user_id)))
-
-        # Check that this access token has been invalidated.
-        request, channel = self.make_request("GET", "account/whoami")
-        self.render(request)
-        self.assertEqual(request.code, 401)