From 682d31c7023b6b7299e74bc631e4d2acc60f91ac Mon Sep 17 00:00:00 2001 From: reivilibre Date: Tue, 28 Feb 2023 16:37:19 +0000 Subject: [PATCH] Allow use of the `/filter` Client-Server APIs on workers. (#15134) --- changelog.d/15134.feature | 1 + docker/configure_workers_and_start.py | 1 + docs/workers.md | 1 + synapse/rest/__init__.py | 3 +-- synapse/storage/databases/main/__init__.py | 4 ++-- synapse/storage/databases/main/filtering.py | 25 +++++++++++++++++---- 6 files changed, 27 insertions(+), 8 deletions(-) create mode 100644 changelog.d/15134.feature diff --git a/changelog.d/15134.feature b/changelog.d/15134.feature new file mode 100644 index 0000000000..0dbb30bc8f --- /dev/null +++ b/changelog.d/15134.feature @@ -0,0 +1 @@ +Allow use of the `/filter` Client-Server APIs on workers. \ No newline at end of file diff --git a/docker/configure_workers_and_start.py b/docker/configure_workers_and_start.py index 58c62f2231..7f615e5066 100755 --- a/docker/configure_workers_and_start.py +++ b/docker/configure_workers_and_start.py @@ -142,6 +142,7 @@ WORKERS_CONFIG: Dict[str, Dict[str, Any]] = { "^/_matrix/client/(api/v1|r0|v3|unstable/.*)/rooms/.*/aliases", "^/_matrix/client/v1/rooms/.*/timestamp_to_event$", "^/_matrix/client/(api/v1|r0|v3|unstable)/search", + "^/_matrix/client/(r0|v3|unstable)/user/.*/filter(/|$)", ], "shared_extra_conf": {}, "worker_extra_conf": "", diff --git a/docs/workers.md b/docs/workers.md index 2eb970ffa6..35a96f12a9 100644 --- a/docs/workers.md +++ b/docs/workers.md @@ -232,6 +232,7 @@ information. ^/_matrix/client/(api/v1|r0|v3|unstable)/joined_rooms$ ^/_matrix/client/v1/rooms/.*/timestamp_to_event$ ^/_matrix/client/(api/v1|r0|v3|unstable)/search$ + ^/_matrix/client/(r0|v3|unstable)/user/.*/filter(/|$) # Encryption requests ^/_matrix/client/(r0|v3|unstable)/keys/query$ diff --git a/synapse/rest/__init__.py b/synapse/rest/__init__.py index 14c4e6ebbb..c327f15043 100644 --- a/synapse/rest/__init__.py +++ b/synapse/rest/__init__.py @@ -108,8 +108,7 @@ class ClientRestResource(JsonResource): if is_main_process: logout.register_servlets(hs, client_resource) sync.register_servlets(hs, client_resource) - if is_main_process: - filter.register_servlets(hs, client_resource) + filter.register_servlets(hs, client_resource) account.register_servlets(hs, client_resource) register.register_servlets(hs, client_resource) if is_main_process: diff --git a/synapse/storage/databases/main/__init__.py b/synapse/storage/databases/main/__init__.py index 837dc7646e..dc3948c170 100644 --- a/synapse/storage/databases/main/__init__.py +++ b/synapse/storage/databases/main/__init__.py @@ -43,7 +43,7 @@ from .event_federation import EventFederationStore from .event_push_actions import EventPushActionsStore from .events_bg_updates import EventsBackgroundUpdatesStore from .events_forward_extremities import EventForwardExtremitiesStore -from .filtering import FilteringStore +from .filtering import FilteringWorkerStore from .keys import KeyStore from .lock import LockStore from .media_repository import MediaRepositoryStore @@ -99,7 +99,7 @@ class DataStore( EventFederationStore, MediaRepositoryStore, RejectionsStore, - FilteringStore, + FilteringWorkerStore, PusherStore, PushRuleStore, ApplicationServiceTransactionStore, diff --git a/synapse/storage/databases/main/filtering.py b/synapse/storage/databases/main/filtering.py index 12f3b601f1..8e57c8e5a0 100644 --- a/synapse/storage/databases/main/filtering.py +++ b/synapse/storage/databases/main/filtering.py @@ -17,7 +17,7 @@ from typing import Optional, Tuple, Union, cast from canonicaljson import encode_canonical_json -from synapse.api.errors import Codes, SynapseError +from synapse.api.errors import Codes, StoreError, SynapseError from synapse.storage._base import SQLBaseStore, db_to_json from synapse.storage.database import LoggingTransaction from synapse.types import JsonDict @@ -46,8 +46,6 @@ class FilteringWorkerStore(SQLBaseStore): return db_to_json(def_json) - -class FilteringStore(FilteringWorkerStore): async def add_user_filter(self, user_localpart: str, user_filter: JsonDict) -> int: def_json = encode_canonical_json(user_filter) @@ -79,4 +77,23 @@ class FilteringStore(FilteringWorkerStore): return filter_id - return await self.db_pool.runInteraction("add_user_filter", _do_txn) + attempts = 0 + while True: + # Try a few times. + # This is technically needed if a user tries to create two filters at once, + # leading to two concurrent transactions. + # The failure case would be: + # - SELECT filter_id ... filter_json = ? → both transactions return no rows + # - SELECT MAX(filter_id) ... → both transactions return e.g. 5 + # - INSERT INTO ... → both transactions insert filter_id = 6 + # One of the transactions will commit. The other will get a unique key + # constraint violation error (IntegrityError). This is not the same as a + # serialisability violation, which would be automatically retried by + # `runInteraction`. + try: + return await self.db_pool.runInteraction("add_user_filter", _do_txn) + except self.db_pool.engine.module.IntegrityError: + attempts += 1 + + if attempts >= 5: + raise StoreError(500, "Couldn't generate a filter ID.")