116 lines
4 KiB
TypeScript
116 lines
4 KiB
TypeScript
/*
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Copyright 2020 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 EventEmitter from "events";
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import { base32 } from "rfc4648";
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// Dev note: the interface is split in two so we don't have to disable the
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// linter across the whole project.
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export interface IThreepidInviteWireFormat {
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email: string;
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signurl: string;
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room_name: string; // eslint-disable-line camelcase
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room_avatar_url: string; // eslint-disable-line camelcase
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inviter_name: string; // eslint-disable-line camelcase
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// TODO: Figure out if these are ever populated
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guest_access_token?: string; // eslint-disable-line camelcase
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guest_user_id?: string; // eslint-disable-line camelcase
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}
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interface IPersistedThreepidInvite extends IThreepidInviteWireFormat {
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roomId: string;
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}
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export interface IThreepidInvite {
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id: string; // generated by us
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roomId: string;
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toEmail: string;
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signUrl: string;
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roomName: string;
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roomAvatarUrl: string;
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inviterName: string;
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}
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const STORAGE_PREFIX = "mx_threepid_invite_";
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export default class ThreepidInviteStore extends EventEmitter {
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private static _instance: ThreepidInviteStore;
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public static get instance(): ThreepidInviteStore {
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if (!ThreepidInviteStore._instance) {
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ThreepidInviteStore._instance = new ThreepidInviteStore();
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}
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return ThreepidInviteStore._instance;
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}
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public storeInvite(roomId: string, wireInvite: IThreepidInviteWireFormat): IThreepidInvite {
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const invite = <IPersistedThreepidInvite>{roomId, ...wireInvite};
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const id = this.generateIdOf(invite);
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localStorage.setItem(`${STORAGE_PREFIX}${id}`, JSON.stringify(invite));
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return this.translateInvite(invite);
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}
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public getWireInvites(): IPersistedThreepidInvite[] {
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const results: IPersistedThreepidInvite[] = [];
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for (let i = 0; i < localStorage.length; i++) {
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const keyName = localStorage.key(i);
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if (!keyName.startsWith(STORAGE_PREFIX)) continue;
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results.push(JSON.parse(localStorage.getItem(keyName)) as IPersistedThreepidInvite);
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}
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return results;
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}
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public getInvites(): IThreepidInvite[] {
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return this.getWireInvites().map(i => this.translateInvite(i));
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}
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// Currently Element can only handle one invite at a time, so handle that
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public pickBestInvite(): IThreepidInvite {
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return this.getInvites()[0];
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}
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public resolveInvite(invite: IThreepidInvite) {
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localStorage.removeItem(`${STORAGE_PREFIX}${invite.id}`);
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}
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private generateIdOf(persisted: IPersistedThreepidInvite): string {
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// Use a consistent "hash" to form an ID.
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return base32.stringify(Buffer.from(JSON.stringify(persisted)));
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}
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private translateInvite(persisted: IPersistedThreepidInvite): IThreepidInvite {
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return {
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id: this.generateIdOf(persisted),
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roomId: persisted.roomId,
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toEmail: persisted.email,
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signUrl: persisted.signurl,
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roomName: persisted.room_name,
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roomAvatarUrl: persisted.room_avatar_url,
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inviterName: persisted.inviter_name,
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};
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}
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public translateToWireFormat(invite: IThreepidInvite): IThreepidInviteWireFormat {
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return {
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email: invite.toEmail,
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signurl: invite.signUrl,
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room_name: invite.roomName,
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room_avatar_url: invite.roomAvatarUrl,
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inviter_name: invite.inviterName,
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};
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}
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}
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