From 40eda849338b6e47a5804b4cf7000e9d2417c4d8 Mon Sep 17 00:00:00 2001 From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com> Date: Tue, 10 Dec 2019 16:22:29 +0000 Subject: [PATCH] Fix race which caused deleted devices to reappear (#6514) Stop the `update_client_ips` background job from recreating deleted devices. --- changelog.d/6514.bugfix | 1 + .../storage/data_stores/main/client_ips.py | 8 +-- tests/storage/test_client_ips.py | 49 +++++++++++-------- 3 files changed, 35 insertions(+), 23 deletions(-) create mode 100644 changelog.d/6514.bugfix diff --git a/changelog.d/6514.bugfix b/changelog.d/6514.bugfix new file mode 100644 index 0000000000..6dc1985c24 --- /dev/null +++ b/changelog.d/6514.bugfix @@ -0,0 +1 @@ +Fix race which occasionally caused deleted devices to reappear. diff --git a/synapse/storage/data_stores/main/client_ips.py b/synapse/storage/data_stores/main/client_ips.py index 320c5b0f07..add3037b69 100644 --- a/synapse/storage/data_stores/main/client_ips.py +++ b/synapse/storage/data_stores/main/client_ips.py @@ -451,16 +451,18 @@ class ClientIpStore(ClientIpBackgroundUpdateStore): # Technically an access token might not be associated with # a device so we need to check. if device_id: - self.db.simple_upsert_txn( + # this is always an update rather than an upsert: the row should + # already exist, and if it doesn't, that may be because it has been + # deleted, and we don't want to re-create it. + self.db.simple_update_txn( txn, table="devices", keyvalues={"user_id": user_id, "device_id": device_id}, - values={ + updatevalues={ "user_agent": user_agent, "last_seen": last_seen, "ip": ip, }, - lock=False, ) except Exception as e: # Failed to upsert, log and continue diff --git a/tests/storage/test_client_ips.py b/tests/storage/test_client_ips.py index fc279340d4..bf674dd184 100644 --- a/tests/storage/test_client_ips.py +++ b/tests/storage/test_client_ips.py @@ -37,9 +37,13 @@ class ClientIpStoreTestCase(unittest.HomeserverTestCase): self.reactor.advance(12345678) user_id = "@user:id" + device_id = "MY_DEVICE" + + # Insert a user IP + self.get_success(self.store.store_device(user_id, device_id, "display name",)) self.get_success( self.store.insert_client_ip( - user_id, "access_token", "ip", "user_agent", "device_id" + user_id, "access_token", "ip", "user_agent", device_id ) ) @@ -47,14 +51,14 @@ class ClientIpStoreTestCase(unittest.HomeserverTestCase): self.reactor.advance(10) result = self.get_success( - self.store.get_last_client_ip_by_device(user_id, "device_id") + self.store.get_last_client_ip_by_device(user_id, device_id) ) - r = result[(user_id, "device_id")] + r = result[(user_id, device_id)] self.assertDictContainsSubset( { "user_id": user_id, - "device_id": "device_id", + "device_id": device_id, "ip": "ip", "user_agent": "user_agent", "last_seen": 12345678000, @@ -209,14 +213,16 @@ class ClientIpStoreTestCase(unittest.HomeserverTestCase): self.store.db.updates.do_next_background_update(100), by=0.1 ) - # Insert a user IP user_id = "@user:id" + device_id = "MY_DEVICE" + + # Insert a user IP + self.get_success(self.store.store_device(user_id, device_id, "display name",)) self.get_success( self.store.insert_client_ip( - user_id, "access_token", "ip", "user_agent", "device_id" + user_id, "access_token", "ip", "user_agent", device_id ) ) - # Force persisting to disk self.reactor.advance(200) @@ -224,7 +230,7 @@ class ClientIpStoreTestCase(unittest.HomeserverTestCase): self.get_success( self.store.db.simple_update( table="devices", - keyvalues={"user_id": user_id, "device_id": "device_id"}, + keyvalues={"user_id": user_id, "device_id": device_id}, updatevalues={"last_seen": None, "ip": None, "user_agent": None}, desc="test_devices_last_seen_bg_update", ) @@ -232,14 +238,14 @@ class ClientIpStoreTestCase(unittest.HomeserverTestCase): # We should now get nulls when querying result = self.get_success( - self.store.get_last_client_ip_by_device(user_id, "device_id") + self.store.get_last_client_ip_by_device(user_id, device_id) ) - r = result[(user_id, "device_id")] + r = result[(user_id, device_id)] self.assertDictContainsSubset( { "user_id": user_id, - "device_id": "device_id", + "device_id": device_id, "ip": None, "user_agent": None, "last_seen": None, @@ -272,14 +278,14 @@ class ClientIpStoreTestCase(unittest.HomeserverTestCase): # We should now get the correct result again result = self.get_success( - self.store.get_last_client_ip_by_device(user_id, "device_id") + self.store.get_last_client_ip_by_device(user_id, device_id) ) - r = result[(user_id, "device_id")] + r = result[(user_id, device_id)] self.assertDictContainsSubset( { "user_id": user_id, - "device_id": "device_id", + "device_id": device_id, "ip": "ip", "user_agent": "user_agent", "last_seen": 0, @@ -296,11 +302,14 @@ class ClientIpStoreTestCase(unittest.HomeserverTestCase): self.store.db.updates.do_next_background_update(100), by=0.1 ) - # Insert a user IP user_id = "@user:id" + device_id = "MY_DEVICE" + + # Insert a user IP + self.get_success(self.store.store_device(user_id, device_id, "display name",)) self.get_success( self.store.insert_client_ip( - user_id, "access_token", "ip", "user_agent", "device_id" + user_id, "access_token", "ip", "user_agent", device_id ) ) @@ -324,7 +333,7 @@ class ClientIpStoreTestCase(unittest.HomeserverTestCase): "access_token": "access_token", "ip": "ip", "user_agent": "user_agent", - "device_id": "device_id", + "device_id": device_id, "last_seen": 0, } ], @@ -347,14 +356,14 @@ class ClientIpStoreTestCase(unittest.HomeserverTestCase): # But we should still get the correct values for the device result = self.get_success( - self.store.get_last_client_ip_by_device(user_id, "device_id") + self.store.get_last_client_ip_by_device(user_id, device_id) ) - r = result[(user_id, "device_id")] + r = result[(user_id, device_id)] self.assertDictContainsSubset( { "user_id": user_id, - "device_id": "device_id", + "device_id": device_id, "ip": "ip", "user_agent": "user_agent", "last_seen": 0,