mirror of
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111 lines
3.8 KiB
TypeScript
111 lines
3.8 KiB
TypeScript
/*
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Copyright 2020 - 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 { Room } from "matrix-js-sdk/src/models/room";
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import { MatrixClient } from "matrix-js-sdk/src/client";
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import { RoomMember } from "matrix-js-sdk/src/models/room-member";
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import { RoomState, RoomStateEvent } from "matrix-js-sdk/src/models/room-state";
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import { MatrixEvent } from "matrix-js-sdk/src/models/event";
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/**
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* Approximation of a membership status for a given room.
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*/
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export enum EffectiveMembership {
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/**
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* The user is effectively joined to the room. For example, actually joined
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* or knocking on the room (when that becomes possible).
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*/
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Join = "JOIN",
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/**
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* The user is effectively invited to the room. Currently this is a direct map
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* to the invite membership as no other membership states are effectively
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* invites.
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*/
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Invite = "INVITE",
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/**
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* The user is effectively no longer in the room. For example, kicked,
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* banned, or voluntarily left.
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*/
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Leave = "LEAVE",
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}
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export type MembershipSplit = {
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[state in EffectiveMembership]: Room[];
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};
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export function splitRoomsByMembership(rooms: Room[]): MembershipSplit {
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const split: MembershipSplit = {
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[EffectiveMembership.Invite]: [],
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[EffectiveMembership.Join]: [],
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[EffectiveMembership.Leave]: [],
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};
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for (const room of rooms) {
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split[getEffectiveMembership(room.getMyMembership())].push(room);
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}
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return split;
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}
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export function getEffectiveMembership(membership: string): EffectiveMembership {
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if (membership === "invite") {
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return EffectiveMembership.Invite;
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} else if (membership === "join") {
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// TODO: Include knocks? Update docs as needed in the enum. https://github.com/vector-im/element-web/issues/14237
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return EffectiveMembership.Join;
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} else {
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// Probably a leave, kick, or ban
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return EffectiveMembership.Leave;
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}
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}
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export function isJoinedOrNearlyJoined(membership: string): boolean {
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const effective = getEffectiveMembership(membership);
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return effective === EffectiveMembership.Join || effective === EffectiveMembership.Invite;
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}
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/**
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* Try to ensure the user is already in the megolm session before continuing
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* NOTE: this assumes you've just created the room and there's not been an opportunity
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* for other code to run, so we shouldn't miss RoomState.newMember when it comes by.
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*/
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export async function waitForMember(
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client: MatrixClient,
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roomId: string,
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userId: string,
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opts = { timeout: 1500 },
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): Promise<boolean> {
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const { timeout } = opts;
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let handler: (event: MatrixEvent, state: RoomState, member: RoomMember) => void;
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return new Promise<boolean>((resolve) => {
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// eslint-disable-next-line @typescript-eslint/naming-convention
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handler = function (_, __, member: RoomMember) {
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if (member.userId !== userId) return;
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if (member.roomId !== roomId) return;
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resolve(true);
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};
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client.on(RoomStateEvent.NewMember, handler);
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/* We don't want to hang if this goes wrong, so we proceed and hope the other
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user is already in the megolm session */
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window.setTimeout(resolve, timeout, false);
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}).finally(() => {
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client.removeListener(RoomStateEvent.NewMember, handler);
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});
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}
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