From c31c1091d4b591af0683e14363c5bf430b2f045e Mon Sep 17 00:00:00 2001 From: Patrick Cloke Date: Wed, 30 Mar 2022 11:45:32 -0400 Subject: [PATCH] Remove the unused and unstable `/aggregations` endpoint. (#12293) This endpoint was removed from MSC2675 before it was approved. It is currently unspecified (even in any MSCs) and therefore subject to removal. It is not implemented by any known clients. This also changes the bundled aggregation format for `m.annotation`, which previously included pagination tokens for the `/aggregations` endpoint, which are no longer useful. --- changelog.d/12293.removal | 1 + synapse/handlers/relations.py | 6 +- synapse/rest/client/relations.py | 170 ---------------- synapse/storage/databases/main/relations.py | 78 ++------ synapse/storage/relations.py | 33 +--- tests/rest/client/test_relations.py | 207 -------------------- 6 files changed, 17 insertions(+), 478 deletions(-) create mode 100644 changelog.d/12293.removal diff --git a/changelog.d/12293.removal b/changelog.d/12293.removal new file mode 100644 index 0000000000..25214a4b49 --- /dev/null +++ b/changelog.d/12293.removal @@ -0,0 +1 @@ +Remove the unused and unstable `/aggregations` endpoint which was removed from [MSC2675](https://github.com/matrix-org/matrix-doc/pull/2675). diff --git a/synapse/handlers/relations.py b/synapse/handlers/relations.py index 73217d135d..b9497ff3f3 100644 --- a/synapse/handlers/relations.py +++ b/synapse/handlers/relations.py @@ -193,10 +193,8 @@ class RelationsHandler: annotations = await self._main_store.get_aggregation_groups_for_event( event_id, room_id ) - if annotations.chunk: - aggregations.annotations = await annotations.to_dict( - cast("DataStore", self) - ) + if annotations: + aggregations.annotations = {"chunk": annotations} references = await self._main_store.get_relations_for_event( event_id, event, room_id, RelationTypes.REFERENCE, direction="f" diff --git a/synapse/rest/client/relations.py b/synapse/rest/client/relations.py index c16078b187..55c96a2af3 100644 --- a/synapse/rest/client/relations.py +++ b/synapse/rest/client/relations.py @@ -12,22 +12,13 @@ # See the License for the specific language governing permissions and # limitations under the License. -"""This class implements the proposed relation APIs from MSC 1849. - -Since the MSC has not been approved all APIs here are unstable and may change at -any time to reflect changes in the MSC. -""" - import logging from typing import TYPE_CHECKING, Optional, Tuple -from synapse.api.constants import RelationTypes -from synapse.api.errors import SynapseError from synapse.http.server import HttpServer from synapse.http.servlet import RestServlet, parse_integer, parse_string from synapse.http.site import SynapseRequest from synapse.rest.client._base import client_patterns -from synapse.storage.relations import AggregationPaginationToken from synapse.types import JsonDict, StreamToken if TYPE_CHECKING: @@ -93,166 +84,5 @@ class RelationPaginationServlet(RestServlet): return 200, result -class RelationAggregationPaginationServlet(RestServlet): - """API to paginate aggregation groups of relations, e.g. paginate the - types and counts of the reactions on the events. - - Example request and response: - - GET /rooms/{room_id}/aggregations/{parent_id} - - { - chunk: [ - { - "type": "m.reaction", - "key": "👍", - "count": 3 - } - ] - } - """ - - PATTERNS = client_patterns( - "/rooms/(?P[^/]*)/aggregations/(?P[^/]*)" - "(/(?P[^/]*)(/(?P[^/]*))?)?$", - releases=(), - ) - - def __init__(self, hs: "HomeServer"): - super().__init__() - self.auth = hs.get_auth() - self.store = hs.get_datastores().main - self.event_handler = hs.get_event_handler() - - async def on_GET( - self, - request: SynapseRequest, - room_id: str, - parent_id: str, - relation_type: Optional[str] = None, - event_type: Optional[str] = None, - ) -> Tuple[int, JsonDict]: - requester = await self.auth.get_user_by_req(request, allow_guest=True) - - await self.auth.check_user_in_room_or_world_readable( - room_id, - requester.user.to_string(), - allow_departed_users=True, - ) - - # This checks that a) the event exists and b) the user is allowed to - # view it. - event = await self.event_handler.get_event(requester.user, room_id, parent_id) - if event is None: - raise SynapseError(404, "Unknown parent event.") - - if relation_type not in (RelationTypes.ANNOTATION, None): - raise SynapseError( - 400, f"Relation type must be '{RelationTypes.ANNOTATION}'" - ) - - limit = parse_integer(request, "limit", default=5) - from_token_str = parse_string(request, "from") - to_token_str = parse_string(request, "to") - - # Return the relations - from_token = None - if from_token_str: - from_token = AggregationPaginationToken.from_string(from_token_str) - - to_token = None - if to_token_str: - to_token = AggregationPaginationToken.from_string(to_token_str) - - pagination_chunk = await self.store.get_aggregation_groups_for_event( - event_id=parent_id, - room_id=room_id, - event_type=event_type, - limit=limit, - from_token=from_token, - to_token=to_token, - ) - - return 200, await pagination_chunk.to_dict(self.store) - - -class RelationAggregationGroupPaginationServlet(RestServlet): - """API to paginate within an aggregation group of relations, e.g. paginate - all the 👍 reactions on an event. - - Example request and response: - - GET /rooms/{room_id}/aggregations/{parent_id}/m.annotation/m.reaction/👍 - - { - chunk: [ - { - "type": "m.reaction", - "content": { - "m.relates_to": { - "rel_type": "m.annotation", - "key": "👍" - } - } - }, - ... - ] - } - """ - - PATTERNS = client_patterns( - "/rooms/(?P[^/]*)/aggregations/(?P[^/]*)" - "/(?P[^/]*)/(?P[^/]*)/(?P[^/]*)$", - releases=(), - ) - - def __init__(self, hs: "HomeServer"): - super().__init__() - self.auth = hs.get_auth() - self.store = hs.get_datastores().main - self._relations_handler = hs.get_relations_handler() - - async def on_GET( - self, - request: SynapseRequest, - room_id: str, - parent_id: str, - relation_type: str, - event_type: str, - key: str, - ) -> Tuple[int, JsonDict]: - requester = await self.auth.get_user_by_req(request, allow_guest=True) - - if relation_type != RelationTypes.ANNOTATION: - raise SynapseError(400, "Relation type must be 'annotation'") - - limit = parse_integer(request, "limit", default=5) - from_token_str = parse_string(request, "from") - to_token_str = parse_string(request, "to") - - from_token = None - if from_token_str: - from_token = await StreamToken.from_string(self.store, from_token_str) - to_token = None - if to_token_str: - to_token = await StreamToken.from_string(self.store, to_token_str) - - result = await self._relations_handler.get_relations( - requester=requester, - event_id=parent_id, - room_id=room_id, - relation_type=relation_type, - event_type=event_type, - aggregation_key=key, - limit=limit, - from_token=from_token, - to_token=to_token, - ) - - return 200, result - - def register_servlets(hs: "HomeServer", http_server: HttpServer) -> None: RelationPaginationServlet(hs).register(http_server) - RelationAggregationPaginationServlet(hs).register(http_server) - RelationAggregationGroupPaginationServlet(hs).register(http_server) diff --git a/synapse/storage/databases/main/relations.py b/synapse/storage/databases/main/relations.py index b2295fd51f..3285450742 100644 --- a/synapse/storage/databases/main/relations.py +++ b/synapse/storage/databases/main/relations.py @@ -26,8 +26,6 @@ from typing import ( cast, ) -import attr - from synapse.api.constants import RelationTypes from synapse.events import EventBase from synapse.storage._base import SQLBaseStore @@ -39,8 +37,8 @@ from synapse.storage.database import ( ) from synapse.storage.databases.main.stream import generate_pagination_where_clause from synapse.storage.engines import PostgresEngine -from synapse.storage.relations import AggregationPaginationToken, PaginationChunk -from synapse.types import RoomStreamToken, StreamToken +from synapse.storage.relations import PaginationChunk +from synapse.types import JsonDict, RoomStreamToken, StreamToken from synapse.util.caches.descriptors import cached, cachedList if TYPE_CHECKING: @@ -252,15 +250,8 @@ class RelationsWorkerStore(SQLBaseStore): @cached(tree=True) async def get_aggregation_groups_for_event( - self, - event_id: str, - room_id: str, - event_type: Optional[str] = None, - limit: int = 5, - direction: str = "b", - from_token: Optional[AggregationPaginationToken] = None, - to_token: Optional[AggregationPaginationToken] = None, - ) -> PaginationChunk: + self, event_id: str, room_id: str, limit: int = 5 + ) -> List[JsonDict]: """Get a list of annotations on the event, grouped by event type and aggregation key, sorted by count. @@ -270,79 +261,36 @@ class RelationsWorkerStore(SQLBaseStore): Args: event_id: Fetch events that relate to this event ID. room_id: The room the event belongs to. - event_type: Only fetch events with this event type, if given. limit: Only fetch the `limit` groups. - direction: Whether to fetch the highest count first (`"b"`) or - the lowest count first (`"f"`). - from_token: Fetch rows from the given token, or from the start if None. - to_token: Fetch rows up to the given token, or up to the end if None. Returns: List of groups of annotations that match. Each row is a dict with `type`, `key` and `count` fields. """ - where_clause = ["relates_to_id = ?", "room_id = ?", "relation_type = ?"] - where_args: List[Union[str, int]] = [ + where_args = [ event_id, room_id, RelationTypes.ANNOTATION, + limit, ] - if event_type: - where_clause.append("type = ?") - where_args.append(event_type) - - having_clause = generate_pagination_where_clause( - direction=direction, - column_names=("COUNT(*)", "MAX(stream_ordering)"), - from_token=attr.astuple(from_token) if from_token else None, # type: ignore[arg-type] - to_token=attr.astuple(to_token) if to_token else None, # type: ignore[arg-type] - engine=self.database_engine, - ) - - if direction == "b": - order = "DESC" - else: - order = "ASC" - - if having_clause: - having_clause = "HAVING " + having_clause - else: - having_clause = "" - sql = """ - SELECT type, aggregation_key, COUNT(DISTINCT sender), MAX(stream_ordering) + SELECT type, aggregation_key, COUNT(DISTINCT sender) FROM event_relations INNER JOIN events USING (event_id) - WHERE {where_clause} + WHERE relates_to_id = ? AND room_id = ? AND relation_type = ? GROUP BY relation_type, type, aggregation_key - {having_clause} - ORDER BY COUNT(*) {order}, MAX(stream_ordering) {order} + ORDER BY COUNT(*) DESC LIMIT ? - """.format( - where_clause=" AND ".join(where_clause), - order=order, - having_clause=having_clause, - ) + """ def _get_aggregation_groups_for_event_txn( txn: LoggingTransaction, - ) -> PaginationChunk: - txn.execute(sql, where_args + [limit + 1]) + ) -> List[JsonDict]: + txn.execute(sql, where_args) - next_batch = None - events = [] - for row in txn: - events.append({"type": row[0], "key": row[1], "count": row[2]}) - next_batch = AggregationPaginationToken(row[2], row[3]) - - if len(events) <= limit: - next_batch = None - - return PaginationChunk( - chunk=list(events[:limit]), next_batch=next_batch, prev_batch=from_token - ) + return [{"type": row[0], "key": row[1], "count": row[2]} for row in txn] return await self.db_pool.runInteraction( "get_aggregation_groups_for_event", _get_aggregation_groups_for_event_txn diff --git a/synapse/storage/relations.py b/synapse/storage/relations.py index fba270150b..b9d2b46799 100644 --- a/synapse/storage/relations.py +++ b/synapse/storage/relations.py @@ -13,11 +13,10 @@ # limitations under the License. import logging -from typing import TYPE_CHECKING, Any, Dict, List, Optional, Tuple +from typing import TYPE_CHECKING, Any, Dict, List, Optional import attr -from synapse.api.errors import SynapseError from synapse.types import JsonDict if TYPE_CHECKING: @@ -52,33 +51,3 @@ class PaginationChunk: d["prev_batch"] = await self.prev_batch.to_string(store) return d - - -@attr.s(frozen=True, slots=True, auto_attribs=True) -class AggregationPaginationToken: - """Pagination token for relation aggregation pagination API. - - As the results are order by count and then MAX(stream_ordering) of the - aggregation groups, we can just use them as our pagination token. - - Attributes: - count: The count of relations in the boundary group. - stream: The MAX stream ordering in the boundary group. - """ - - count: int - stream: int - - @staticmethod - def from_string(string: str) -> "AggregationPaginationToken": - try: - c, s = string.split("-") - return AggregationPaginationToken(int(c), int(s)) - except ValueError: - raise SynapseError(400, "Invalid aggregation pagination token") - - async def to_string(self, store: "DataStore") -> str: - return "%d-%d" % (self.count, self.stream) - - def as_tuple(self) -> Tuple[Any, ...]: - return attr.astuple(self) diff --git a/tests/rest/client/test_relations.py b/tests/rest/client/test_relations.py index fe97a0b3dd..419eef166a 100644 --- a/tests/rest/client/test_relations.py +++ b/tests/rest/client/test_relations.py @@ -13,7 +13,6 @@ # See the License for the specific language governing permissions and # limitations under the License. -import itertools import urllib.parse from typing import Any, Callable, Dict, List, Optional, Tuple from unittest.mock import patch @@ -145,16 +144,6 @@ class BaseRelationsTestCase(unittest.HomeserverTestCase): self.assertEquals(200, channel.code, channel.json_body) return channel.json_body["unsigned"].get("m.relations", {}) - def _get_aggregations(self) -> List[JsonDict]: - """Request /aggregations on the parent ID and includes the returned chunk.""" - channel = self.make_request( - "GET", - f"/_matrix/client/unstable/rooms/{self.room}/aggregations/{self.parent_id}", - access_token=self.user_token, - ) - self.assertEqual(200, channel.code, channel.json_body) - return channel.json_body["chunk"] - def _find_event_in_chunk(self, events: List[JsonDict]) -> JsonDict: """ Find the parent event in a chunk of events and assert that it has the proper bundled aggregations. @@ -264,43 +253,6 @@ class RelationsTestCase(BaseRelationsTestCase): expected_response_code=400, ) - def test_aggregation(self) -> None: - """Test that annotations get correctly aggregated.""" - - self._send_relation(RelationTypes.ANNOTATION, "m.reaction", "a") - self._send_relation( - RelationTypes.ANNOTATION, "m.reaction", "a", access_token=self.user2_token - ) - self._send_relation(RelationTypes.ANNOTATION, "m.reaction", "b") - - channel = self.make_request( - "GET", - f"/_matrix/client/unstable/rooms/{self.room}/aggregations/{self.parent_id}", - access_token=self.user_token, - ) - self.assertEqual(200, channel.code, channel.json_body) - - self.assertEqual( - channel.json_body, - { - "chunk": [ - {"type": "m.reaction", "key": "a", "count": 2}, - {"type": "m.reaction", "key": "b", "count": 1}, - ] - }, - ) - - def test_aggregation_must_be_annotation(self) -> None: - """Test that aggregations must be annotations.""" - - channel = self.make_request( - "GET", - f"/_matrix/client/unstable/rooms/{self.room}/aggregations" - f"/{self.parent_id}/{RelationTypes.REPLACE}?limit=1", - access_token=self.user_token, - ) - self.assertEqual(400, channel.code, channel.json_body) - def test_ignore_invalid_room(self) -> None: """Test that we ignore invalid relations over federation.""" # Create another room and send a message in it. @@ -394,15 +346,6 @@ class RelationsTestCase(BaseRelationsTestCase): self.assertEqual(200, channel.code, channel.json_body) self.assertEqual(channel.json_body["chunk"], []) - # And when fetching aggregations. - channel = self.make_request( - "GET", - f"/_matrix/client/unstable/rooms/{room2}/aggregations/{parent_id}", - access_token=self.user_token, - ) - self.assertEqual(200, channel.code, channel.json_body) - self.assertEqual(channel.json_body["chunk"], []) - # And for bundled aggregations. channel = self.make_request( "GET", @@ -717,15 +660,6 @@ class RelationsTestCase(BaseRelationsTestCase): self.assertEqual(200, channel.code, channel.json_body) self.assertNotIn("m.relations", channel.json_body["unsigned"]) - # But unknown relations can be directly queried. - channel = self.make_request( - "GET", - f"/_matrix/client/unstable/rooms/{self.room}/aggregations/{self.parent_id}?limit=1", - access_token=self.user_token, - ) - self.assertEqual(200, channel.code, channel.json_body) - self.assertEqual(channel.json_body["chunk"], []) - def test_background_update(self) -> None: """Test the event_arbitrary_relations background update.""" channel = self._send_relation(RelationTypes.ANNOTATION, "m.reaction", key="👍") @@ -941,131 +875,6 @@ class RelationPaginationTestCase(BaseRelationsTestCase): annotation_id, [ev["event_id"] for ev in channel.json_body["chunk"]] ) - def test_aggregation_pagination_groups(self) -> None: - """Test that we can paginate annotation groups correctly.""" - - # We need to create ten separate users to send each reaction. - access_tokens = [self.user_token, self.user2_token] - idx = 0 - while len(access_tokens) < 10: - user_id, token = self._create_user("test" + str(idx)) - idx += 1 - - self.helper.join(self.room, user=user_id, tok=token) - access_tokens.append(token) - - idx = 0 - sent_groups = {"👍": 10, "a": 7, "b": 5, "c": 3, "d": 2, "e": 1} - for key in itertools.chain.from_iterable( - itertools.repeat(key, num) for key, num in sent_groups.items() - ): - self._send_relation( - RelationTypes.ANNOTATION, - "m.reaction", - key=key, - access_token=access_tokens[idx], - ) - - idx += 1 - idx %= len(access_tokens) - - prev_token: Optional[str] = None - found_groups: Dict[str, int] = {} - for _ in range(20): - from_token = "" - if prev_token: - from_token = "&from=" + prev_token - - channel = self.make_request( - "GET", - f"/_matrix/client/unstable/rooms/{self.room}/aggregations/{self.parent_id}?limit=1{from_token}", - access_token=self.user_token, - ) - self.assertEqual(200, channel.code, channel.json_body) - - self.assertEqual(len(channel.json_body["chunk"]), 1, channel.json_body) - - for groups in channel.json_body["chunk"]: - # We only expect reactions - self.assertEqual(groups["type"], "m.reaction", channel.json_body) - - # We should only see each key once - self.assertNotIn(groups["key"], found_groups, channel.json_body) - - found_groups[groups["key"]] = groups["count"] - - next_batch = channel.json_body.get("next_batch") - - self.assertNotEqual(prev_token, next_batch) - prev_token = next_batch - - if not prev_token: - break - - self.assertEqual(sent_groups, found_groups) - - def test_aggregation_pagination_within_group(self) -> None: - """Test that we can paginate within an annotation group.""" - - # We need to create ten separate users to send each reaction. - access_tokens = [self.user_token, self.user2_token] - idx = 0 - while len(access_tokens) < 10: - user_id, token = self._create_user("test" + str(idx)) - idx += 1 - - self.helper.join(self.room, user=user_id, tok=token) - access_tokens.append(token) - - idx = 0 - expected_event_ids = [] - for _ in range(10): - channel = self._send_relation( - RelationTypes.ANNOTATION, - "m.reaction", - key="👍", - access_token=access_tokens[idx], - ) - expected_event_ids.append(channel.json_body["event_id"]) - - idx += 1 - - # Also send a different type of reaction so that we test we don't see it - self._send_relation(RelationTypes.ANNOTATION, "m.reaction", key="a") - - prev_token = "" - found_event_ids: List[str] = [] - encoded_key = urllib.parse.quote_plus("👍".encode()) - for _ in range(20): - from_token = "" - if prev_token: - from_token = "&from=" + prev_token - - channel = self.make_request( - "GET", - f"/_matrix/client/unstable/rooms/{self.room}" - f"/aggregations/{self.parent_id}/{RelationTypes.ANNOTATION}" - f"/m.reaction/{encoded_key}?limit=1{from_token}", - access_token=self.user_token, - ) - self.assertEqual(200, channel.code, channel.json_body) - - self.assertEqual(len(channel.json_body["chunk"]), 1, channel.json_body) - - found_event_ids.extend(e["event_id"] for e in channel.json_body["chunk"]) - - next_batch = channel.json_body.get("next_batch") - - self.assertNotEqual(prev_token, next_batch) - prev_token = next_batch - - if not prev_token: - break - - # We paginated backwards, so reverse - found_event_ids.reverse() - self.assertEqual(found_event_ids, expected_event_ids) - class BundledAggregationsTestCase(BaseRelationsTestCase): """ @@ -1453,10 +1262,6 @@ class RelationRedactionTestCase(BaseRelationsTestCase): {"chunk": [{"type": "m.reaction", "key": "a", "count": 2}]}, ) - # Both relations appear in the aggregation. - chunk = self._get_aggregations() - self.assertEqual(chunk, [{"type": "m.reaction", "key": "a", "count": 2}]) - # Redact one of the reactions. self._redact(to_redact_event_id) @@ -1469,10 +1274,6 @@ class RelationRedactionTestCase(BaseRelationsTestCase): {"chunk": [{"type": "m.reaction", "key": "a", "count": 1}]}, ) - # The unredacted aggregation should still exist. - chunk = self._get_aggregations() - self.assertEqual(chunk, [{"type": "m.reaction", "key": "a", "count": 1}]) - def test_redact_relation_thread(self) -> None: """ Test that thread replies are properly handled after the thread reply redacted. @@ -1578,10 +1379,6 @@ class RelationRedactionTestCase(BaseRelationsTestCase): self.assertEqual(len(event_ids), 1) self.assertIn(RelationTypes.ANNOTATION, relations) - # The aggregation should exist. - chunk = self._get_aggregations() - self.assertEqual(chunk, [{"type": "m.reaction", "key": "👍", "count": 1}]) - # Redact the original event. self._redact(self.parent_id) @@ -1594,10 +1391,6 @@ class RelationRedactionTestCase(BaseRelationsTestCase): {"chunk": [{"type": "m.reaction", "key": "👍", "count": 1}]}, ) - # There's nothing to aggregate. - chunk = self._get_aggregations() - self.assertEqual(chunk, [{"count": 1, "key": "👍", "type": "m.reaction"}]) - @unittest.override_config({"experimental_features": {"msc3440_enabled": True}}) def test_redact_parent_thread(self) -> None: """