388 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			TypeScript
		
	
	
			
		
		
	
	
			388 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			TypeScript
		
	
	
/*
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Copyright 2018 New Vector Ltd
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Copyright 2019, 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 {
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    Room,
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    RoomMember,
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    EventType,
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    MatrixEvent,
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} from 'matrix-js-sdk/src/matrix';
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import { MatrixClientPeg } from '../../../src/MatrixClientPeg';
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import {
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    makeRoomPermalink,
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    makeUserPermalink,
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    parsePermalink,
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    RoomPermalinkCreator,
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} from "../../../src/utils/permalinks/Permalinks";
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import { getMockClientWithEventEmitter } from '../../test-utils';
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describe('Permalinks', function() {
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    const userId = '@test:example.com';
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    const mockClient = getMockClientWithEventEmitter({
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        getUserId: jest.fn().mockReturnValue(userId),
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        getRoom: jest.fn(),
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    });
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    mockClient.credentials = { userId };
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    const makeMemberWithPL = (roomId: Room['roomId'], userId: string, powerLevel: number): RoomMember => {
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        const member = new RoomMember(roomId, userId);
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        member.powerLevel = powerLevel;
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        return member;
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    };
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    function mockRoom(
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        roomId: Room['roomId'], members: RoomMember[], serverACLContent?: { deny?: string[], allow?: string[]},
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    ): Room {
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        members.forEach(m => m.membership = "join");
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        const powerLevelsUsers = members.reduce((pl, member) => {
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            if (Number.isFinite(member.powerLevel)) {
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                pl[member.userId] = member.powerLevel;
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            }
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            return pl;
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        }, {});
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        const room = new Room(roomId, mockClient, userId);
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        const powerLevels = new MatrixEvent({
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            type: EventType.RoomPowerLevels,
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            room_id: roomId,
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            state_key: '',
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            content: {
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                users: powerLevelsUsers, users_default: 0,
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            },
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        });
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        const serverACL = serverACLContent ? new MatrixEvent({
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            type: EventType.RoomServerAcl,
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            room_id: roomId,
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            state_key: '',
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            content: serverACLContent,
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        }) : undefined;
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        const stateEvents = serverACL ? [powerLevels, serverACL] : [powerLevels];
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        room.currentState.setStateEvents(stateEvents);
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        jest.spyOn(room, 'getCanonicalAlias').mockReturnValue(null);
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        jest.spyOn(room, 'getJoinedMembers').mockReturnValue(members);
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        jest.spyOn(room, 'getMember').mockImplementation((userId) => members.find(m => m.userId === userId));
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        return room;
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    }
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    beforeEach(function() {
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        jest.clearAllMocks();
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    });
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    afterAll(() => {
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        jest.spyOn(MatrixClientPeg, 'get').mockRestore();
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    });
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    it('should pick no candidate servers when the room has no members', function() {
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        const room = mockRoom("!fake:example.org", []);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(0);
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    });
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    it('should gracefully handle invalid MXIDs', () => {
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        const roomId = "!fake:example.org";
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        const alice50 = makeMemberWithPL(roomId, "@alice:pl_50:org", 50);
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        const room = mockRoom(roomId, [alice50]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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    });
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    it('should pick a candidate server for the highest power level user in the room', function() {
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        const roomId = "!fake:example.org";
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        const alice50 = makeMemberWithPL(roomId, "@alice:pl_50", 50);
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        const alice75 = makeMemberWithPL(roomId, "@alice:pl_75", 75);
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        const alice95 = makeMemberWithPL(roomId, "@alice:pl_95", 95);
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        const room = mockRoom("!fake:example.org", [
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            alice50,
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            alice75,
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            alice95,
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        ]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(3);
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        expect(creator.serverCandidates[0]).toBe("pl_95");
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        // we don't check the 2nd and 3rd servers because that is done by the next test
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    });
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    it('should change candidate server when highest power level user leaves the room', function() {
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        const roomId = "!fake:example.org";
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        const member95 = makeMemberWithPL(roomId, "@alice:pl_95", 95);
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:pl_50", 50),
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            makeMemberWithPL(roomId, "@alice:pl_75", 75),
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            member95,
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        ]);
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        const creator = new RoomPermalinkCreator(room, null);
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        creator.load();
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        expect(creator.serverCandidates[0]).toBe("pl_95");
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        member95.membership = "left";
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        // @ts-ignore illegal private property
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        creator.onRoomStateUpdate();
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        expect(creator.serverCandidates[0]).toBe("pl_75");
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        member95.membership = "join";
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        // @ts-ignore illegal private property
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        creator.onRoomStateUpdate();
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        expect(creator.serverCandidates[0]).toBe("pl_95");
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    });
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    it('should pick candidate servers based on user population', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:first", 0),
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            makeMemberWithPL(roomId, "@bob:first", 0),
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            makeMemberWithPL(roomId, "@charlie:first", 0),
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            makeMemberWithPL(roomId, "@alice:second", 0),
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            makeMemberWithPL(roomId, "@bob:second", 0),
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            makeMemberWithPL(roomId, "@charlie:third", 0),
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        ]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(3);
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        expect(creator.serverCandidates[0]).toBe("first");
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        expect(creator.serverCandidates[1]).toBe("second");
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        expect(creator.serverCandidates[2]).toBe("third");
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    });
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    it('should pick prefer candidate servers with higher power levels', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:first", 100),
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            makeMemberWithPL(roomId, "@alice:second", 0),
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            makeMemberWithPL(roomId, "@bob:second", 0),
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            makeMemberWithPL(roomId, "@charlie:third", 0),
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        ]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates.length).toBe(3);
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        expect(creator.serverCandidates[0]).toBe("first");
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        expect(creator.serverCandidates[1]).toBe("second");
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        expect(creator.serverCandidates[2]).toBe("third");
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    });
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    it('should pick a maximum of 3 candidate servers', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:alpha", 100),
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            makeMemberWithPL(roomId, "@alice:bravo", 0),
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            makeMemberWithPL(roomId, "@alice:charlie", 0),
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            makeMemberWithPL(roomId, "@alice:delta", 0),
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            makeMemberWithPL(roomId, "@alice:echo", 0),
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        ]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(3);
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    });
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    it('should not consider IPv4 hosts', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:127.0.0.1", 100),
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        ]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(0);
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    });
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    it('should not consider IPv6 hosts', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:[::1]", 100),
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        ]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(0);
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    });
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    it('should not consider IPv4 hostnames with ports', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:127.0.0.1:8448", 100),
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        ]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(0);
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    });
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    it('should not consider IPv6 hostnames with ports', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:[::1]:8448", 100),
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        ]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(0);
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    });
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    it('should work with hostnames with ports', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:example.org:8448", 100),
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        ]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(1);
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        expect(creator.serverCandidates[0]).toBe("example.org:8448");
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    });
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    it('should not consider servers explicitly denied by ACLs', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:evilcorp.com", 100),
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            makeMemberWithPL(roomId, "@bob:chat.evilcorp.com", 0),
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        ], {
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            deny: ["evilcorp.com", "*.evilcorp.com"],
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            allow: ["*"],
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        });
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(0);
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    });
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    it('should not consider servers not allowed by ACLs', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:evilcorp.com", 100),
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            makeMemberWithPL(roomId, "@bob:chat.evilcorp.com", 0),
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        ], {
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            deny: [],
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            allow: [], // implies "ban everyone"
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        });
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(0);
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    });
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    it('should consider servers not explicitly banned by ACLs', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:evilcorp.com", 100),
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            makeMemberWithPL(roomId, "@bob:chat.evilcorp.com", 0),
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        ], {
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            deny: ["*.evilcorp.com"], // evilcorp.com is still good though
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            allow: ["*"],
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        });
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(1);
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        expect(creator.serverCandidates[0]).toEqual("evilcorp.com");
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    });
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    it('should consider servers not disallowed by ACLs', function() {
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        const roomId = "!fake:example.org";
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        const room = mockRoom("!fake:example.org", [
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            makeMemberWithPL(roomId, "@alice:evilcorp.com", 100),
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            makeMemberWithPL(roomId, "@bob:chat.evilcorp.com", 0),
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        ], {
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            deny: [],
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            allow: ["evilcorp.com"], // implies "ban everyone else"
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        });
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        expect(creator.serverCandidates).toBeTruthy();
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        expect(creator.serverCandidates.length).toBe(1);
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        expect(creator.serverCandidates[0]).toEqual("evilcorp.com");
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    });
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    it('should generate an event permalink for room IDs with no candidate servers', function() {
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        const room = mockRoom("!somewhere:example.org", []);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        const result = creator.forEvent("$something:example.com");
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        expect(result).toBe("https://matrix.to/#/!somewhere:example.org/$something:example.com");
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    });
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    it('should generate an event permalink for room IDs with some candidate servers', function() {
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        const roomId = "!somewhere:example.org";
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        const room = mockRoom(roomId, [
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            makeMemberWithPL(roomId, "@alice:first", 100),
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            makeMemberWithPL(roomId, "@bob:second", 0),
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        ]);
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        const creator = new RoomPermalinkCreator(room);
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        creator.load();
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        const result = creator.forEvent("$something:example.com");
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        expect(result).toBe("https://matrix.to/#/!somewhere:example.org/$something:example.com?via=first&via=second");
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    });
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    it('should generate a room permalink for room IDs with some candidate servers', function() {
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        mockClient.getRoom.mockImplementation((roomId: Room['roomId']) => {
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            return mockRoom(roomId, [
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                makeMemberWithPL(roomId, "@alice:first", 100),
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                makeMemberWithPL(roomId, "@bob:second", 0),
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            ]);
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        });
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        const result = makeRoomPermalink("!somewhere:example.org");
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        expect(result).toBe("https://matrix.to/#/!somewhere:example.org?via=first&via=second");
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    });
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    it('should generate a room permalink for room aliases with no candidate servers', function() {
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        mockClient.getRoom.mockReturnValue(null);
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        const result = makeRoomPermalink("#somewhere:example.org");
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        expect(result).toBe("https://matrix.to/#/#somewhere:example.org");
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    });
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    it('should generate a room permalink for room aliases without candidate servers', function() {
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        mockClient.getRoom.mockImplementation((roomId: Room['roomId']) => {
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            return mockRoom(roomId, [
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                makeMemberWithPL(roomId, "@alice:first", 100),
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                makeMemberWithPL(roomId, "@bob:second", 0),
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            ]);
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        });
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        const result = makeRoomPermalink("#somewhere:example.org");
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        expect(result).toBe("https://matrix.to/#/#somewhere:example.org");
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    });
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    it('should generate a user permalink', function() {
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        const result = makeUserPermalink("@someone:example.org");
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        expect(result).toBe("https://matrix.to/#/@someone:example.org");
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    });
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    it('should correctly parse room permalinks with a via argument', () => {
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        const result = parsePermalink("https://matrix.to/#/!room_id:server?via=some.org");
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        expect(result.roomIdOrAlias).toBe("!room_id:server");
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        expect(result.viaServers).toEqual(["some.org"]);
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    });
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    it('should correctly parse room permalink via arguments', () => {
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        const result = parsePermalink("https://matrix.to/#/!room_id:server?via=foo.bar&via=bar.foo");
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        expect(result.roomIdOrAlias).toBe("!room_id:server");
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        expect(result.viaServers).toEqual(["foo.bar", "bar.foo"]);
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    });
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    it('should correctly parse event permalink via arguments', () => {
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        const result = parsePermalink("https://matrix.to/#/!room_id:server/$event_id/some_thing_here/foobar" +
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            "?via=m1.org&via=m2.org");
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        expect(result.eventId).toBe("$event_id/some_thing_here/foobar");
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        expect(result.roomIdOrAlias).toBe("!room_id:server");
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        expect(result.viaServers).toEqual(["m1.org", "m2.org"]);
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    });
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});
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