f29823cdcc
* Check native sliding sync support against an unstable feature flag The `OPTIONS` approach from https://github.com/matrix-org/matrix-react-sdk/pull/12492 doesn't work because Synapse *always* responds with 204 (success) to `OPTIONS` requests, as described here: https://github.com/element-hq/synapse/issues/17153 We further can't use `HEAD` because it's not part of the allowed CORS methods, meaning the browser will mask the exact status code and error message from us, and the proxy hangs on the request anyways: https://github.com/matrix-org/sliding-sync/pull/429 To avoid these problems, we instead search for an unstable feature flag to be exposed by the server. Presence of this flag denotes native support. See https://github.com/matrix-org/matrix-spec-proposals/pull/3575/files#r1588877046 for details. Implementations which support sliding sync natively will need to update to support this new unstable feature flag usage. * Appease the linter * Appease the tests
307 lines
13 KiB
TypeScript
307 lines
13 KiB
TypeScript
/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { SlidingSync } from "matrix-js-sdk/src/sliding-sync";
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import { mocked } from "jest-mock";
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import { MatrixClient, MatrixEvent, Room } from "matrix-js-sdk/src/matrix";
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import { SlidingSyncManager } from "../src/SlidingSyncManager";
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import { stubClient } from "./test-utils";
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import SlidingSyncController from "../src/settings/controllers/SlidingSyncController";
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import SettingsStore from "../src/settings/SettingsStore";
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jest.mock("matrix-js-sdk/src/sliding-sync");
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const MockSlidingSync = <jest.Mock<SlidingSync>>(<unknown>SlidingSync);
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describe("SlidingSyncManager", () => {
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let manager: SlidingSyncManager;
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let slidingSync: SlidingSync;
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let client: MatrixClient;
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beforeEach(() => {
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slidingSync = new MockSlidingSync();
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manager = new SlidingSyncManager();
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client = stubClient();
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// by default the client has no rooms: stubClient magically makes rooms annoyingly.
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mocked(client.getRoom).mockReturnValue(null);
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manager.configure(client, "invalid");
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manager.slidingSync = slidingSync;
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});
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describe("setRoomVisible", () => {
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it("adds a subscription for the room", async () => {
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const roomId = "!room:id";
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const subs = new Set<string>();
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mocked(slidingSync.getRoomSubscriptions).mockReturnValue(subs);
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mocked(slidingSync.modifyRoomSubscriptions).mockResolvedValue("yep");
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await manager.setRoomVisible(roomId, true);
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expect(slidingSync.modifyRoomSubscriptions).toHaveBeenCalledWith(new Set<string>([roomId]));
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});
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it("adds a custom subscription for a lazy-loadable room", async () => {
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const roomId = "!lazy:id";
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const room = new Room(roomId, client, client.getUserId()!);
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room.getLiveTimeline().initialiseState([
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new MatrixEvent({
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type: "m.room.create",
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state_key: "",
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event_id: "$abc123",
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sender: client.getUserId()!,
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content: {
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creator: client.getUserId()!,
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},
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}),
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]);
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mocked(client.getRoom).mockImplementation((r: string): Room | null => {
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if (roomId === r) {
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return room;
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}
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return null;
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});
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const subs = new Set<string>();
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mocked(slidingSync.getRoomSubscriptions).mockReturnValue(subs);
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mocked(slidingSync.modifyRoomSubscriptions).mockResolvedValue("yep");
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await manager.setRoomVisible(roomId, true);
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expect(slidingSync.modifyRoomSubscriptions).toHaveBeenCalledWith(new Set<string>([roomId]));
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// we aren't prescriptive about what the sub name is.
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expect(slidingSync.useCustomSubscription).toHaveBeenCalledWith(roomId, expect.anything());
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});
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});
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describe("ensureListRegistered", () => {
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it("creates a new list based on the key", async () => {
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const listKey = "key";
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mocked(slidingSync.getListParams).mockReturnValue(null);
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mocked(slidingSync.setList).mockResolvedValue("yep");
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await manager.ensureListRegistered(listKey, {
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sort: ["by_recency"],
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});
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expect(slidingSync.setList).toHaveBeenCalledWith(
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listKey,
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expect.objectContaining({
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sort: ["by_recency"],
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}),
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);
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});
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it("updates an existing list based on the key", async () => {
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const listKey = "key";
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mocked(slidingSync.getListParams).mockReturnValue({
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ranges: [[0, 42]],
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});
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mocked(slidingSync.setList).mockResolvedValue("yep");
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await manager.ensureListRegistered(listKey, {
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sort: ["by_recency"],
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});
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expect(slidingSync.setList).toHaveBeenCalledWith(
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listKey,
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expect.objectContaining({
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sort: ["by_recency"],
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ranges: [[0, 42]],
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}),
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);
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});
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it("updates ranges on an existing list based on the key if there's no other changes", async () => {
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const listKey = "key";
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mocked(slidingSync.getListParams).mockReturnValue({
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ranges: [[0, 42]],
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});
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mocked(slidingSync.setList).mockResolvedValue("yep");
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await manager.ensureListRegistered(listKey, {
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ranges: [[0, 52]],
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});
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expect(slidingSync.setList).not.toHaveBeenCalled();
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expect(slidingSync.setListRanges).toHaveBeenCalledWith(listKey, [[0, 52]]);
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});
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it("no-ops for idential changes", async () => {
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const listKey = "key";
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mocked(slidingSync.getListParams).mockReturnValue({
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ranges: [[0, 42]],
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sort: ["by_recency"],
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});
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mocked(slidingSync.setList).mockResolvedValue("yep");
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await manager.ensureListRegistered(listKey, {
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ranges: [[0, 42]],
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sort: ["by_recency"],
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});
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expect(slidingSync.setList).not.toHaveBeenCalled();
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expect(slidingSync.setListRanges).not.toHaveBeenCalled();
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});
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});
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describe("startSpidering", () => {
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it("requests in batchSizes", async () => {
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const gapMs = 1;
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const batchSize = 10;
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mocked(slidingSync.setList).mockResolvedValue("yep");
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mocked(slidingSync.setListRanges).mockResolvedValue("yep");
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mocked(slidingSync.getListData).mockImplementation((key) => {
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return {
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joinedCount: 64,
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roomIndexToRoomId: {},
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};
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});
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await manager.startSpidering(batchSize, gapMs);
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// we expect calls for 10,19 -> 20,29 -> 30,39 -> 40,49 -> 50,59 -> 60,69
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const wantWindows = [
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[10, 19],
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[20, 29],
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[30, 39],
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[40, 49],
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[50, 59],
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[60, 69],
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];
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expect(slidingSync.getListData).toHaveBeenCalledTimes(wantWindows.length);
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expect(slidingSync.setList).toHaveBeenCalledTimes(1);
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expect(slidingSync.setListRanges).toHaveBeenCalledTimes(wantWindows.length - 1);
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wantWindows.forEach((range, i) => {
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if (i === 0) {
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// eslint-disable-next-line jest/no-conditional-expect
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expect(slidingSync.setList).toHaveBeenCalledWith(
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SlidingSyncManager.ListSearch,
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// eslint-disable-next-line jest/no-conditional-expect
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expect.objectContaining({
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ranges: [[0, batchSize - 1], range],
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}),
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);
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return;
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}
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expect(slidingSync.setListRanges).toHaveBeenCalledWith(SlidingSyncManager.ListSearch, [
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[0, batchSize - 1],
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range,
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]);
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});
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});
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it("handles accounts with zero rooms", async () => {
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const gapMs = 1;
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const batchSize = 10;
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mocked(slidingSync.setList).mockResolvedValue("yep");
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mocked(slidingSync.getListData).mockImplementation((key) => {
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return {
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joinedCount: 0,
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roomIndexToRoomId: {},
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};
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});
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await manager.startSpidering(batchSize, gapMs);
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expect(slidingSync.getListData).toHaveBeenCalledTimes(1);
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expect(slidingSync.setList).toHaveBeenCalledTimes(1);
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expect(slidingSync.setList).toHaveBeenCalledWith(
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SlidingSyncManager.ListSearch,
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expect.objectContaining({
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ranges: [
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[0, batchSize - 1],
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[batchSize, batchSize + batchSize - 1],
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],
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}),
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);
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});
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it("continues even when setList rejects", async () => {
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const gapMs = 1;
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const batchSize = 10;
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mocked(slidingSync.setList).mockRejectedValue("narp");
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mocked(slidingSync.getListData).mockImplementation((key) => {
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return {
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joinedCount: 0,
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roomIndexToRoomId: {},
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};
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});
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await manager.startSpidering(batchSize, gapMs);
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expect(slidingSync.getListData).toHaveBeenCalledTimes(1);
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expect(slidingSync.setList).toHaveBeenCalledTimes(1);
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expect(slidingSync.setList).toHaveBeenCalledWith(
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SlidingSyncManager.ListSearch,
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expect.objectContaining({
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ranges: [
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[0, batchSize - 1],
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[batchSize, batchSize + batchSize - 1],
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],
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}),
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);
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});
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});
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describe("checkSupport", () => {
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beforeEach(() => {
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SlidingSyncController.serverSupportsSlidingSync = false;
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jest.spyOn(manager, "getProxyFromWellKnown").mockResolvedValue("proxy");
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});
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it("shorts out if the server has 'native' sliding sync support", async () => {
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jest.spyOn(manager, "nativeSlidingSyncSupport").mockResolvedValue(true);
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expect(SlidingSyncController.serverSupportsSlidingSync).toBeFalsy();
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await manager.checkSupport(client);
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expect(manager.getProxyFromWellKnown).not.toHaveBeenCalled(); // We return earlier
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expect(SlidingSyncController.serverSupportsSlidingSync).toBeTruthy();
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});
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it("tries to find a sliding sync proxy url from the client well-known if there's no 'native' support", async () => {
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jest.spyOn(manager, "nativeSlidingSyncSupport").mockResolvedValue(false);
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expect(SlidingSyncController.serverSupportsSlidingSync).toBeFalsy();
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await manager.checkSupport(client);
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expect(manager.getProxyFromWellKnown).toHaveBeenCalled();
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expect(SlidingSyncController.serverSupportsSlidingSync).toBeTruthy();
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});
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});
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describe("nativeSlidingSyncSupport", () => {
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beforeEach(() => {
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SlidingSyncController.serverSupportsSlidingSync = false;
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});
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it("should make an OPTIONS request to avoid unintended side effects", async () => {
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// See https://github.com/element-hq/element-web/issues/27426
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const unstableSpy = jest
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.spyOn(client, "doesServerSupportUnstableFeature")
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.mockImplementation(async (feature: string) => {
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expect(feature).toBe("org.matrix.msc3575");
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return true;
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});
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const proxySpy = jest.spyOn(manager, "getProxyFromWellKnown").mockResolvedValue("proxy");
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expect(SlidingSyncController.serverSupportsSlidingSync).toBeFalsy();
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await manager.checkSupport(client); // first thing it does is call nativeSlidingSyncSupport
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expect(proxySpy).not.toHaveBeenCalled();
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expect(unstableSpy).toHaveBeenCalled();
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expect(SlidingSyncController.serverSupportsSlidingSync).toBeTruthy();
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});
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});
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describe("setup", () => {
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beforeEach(() => {
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jest.spyOn(manager, "configure");
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jest.spyOn(manager, "startSpidering");
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});
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it("uses the baseUrl as a proxy if no proxy is set in the client well-known and the server has no native support", async () => {
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await manager.setup(client);
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expect(manager.configure).toHaveBeenCalled();
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expect(manager.configure).toHaveBeenCalledWith(client, client.baseUrl);
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expect(manager.startSpidering).toHaveBeenCalled();
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});
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it("uses the proxy declared in the client well-known", async () => {
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jest.spyOn(manager, "getProxyFromWellKnown").mockResolvedValue("proxy");
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await manager.setup(client);
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expect(manager.configure).toHaveBeenCalled();
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expect(manager.configure).toHaveBeenCalledWith(client, "proxy");
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expect(manager.startSpidering).toHaveBeenCalled();
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});
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it("uses the legacy `feature_sliding_sync_proxy_url` if it was set", async () => {
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jest.spyOn(manager, "getProxyFromWellKnown").mockResolvedValue("proxy");
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jest.spyOn(SettingsStore, "getValue").mockImplementation((name: string) => {
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if (name === "feature_sliding_sync_proxy_url") return "legacy-proxy";
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});
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await manager.setup(client);
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expect(manager.configure).toHaveBeenCalled();
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expect(manager.configure).toHaveBeenCalledWith(client, "legacy-proxy");
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expect(manager.startSpidering).toHaveBeenCalled();
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});
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});
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});
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