1234 lines
34 KiB
TypeScript
1234 lines
34 KiB
TypeScript
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// Copyright 2016-2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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/* eslint-disable class-methods-use-this */
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import { fromEncodedBinaryToArrayBuffer, constantTimeEqual } from './Crypto';
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import { isNotNil } from './util/isNotNil';
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const TIMESTAMP_THRESHOLD = 5 * 1000; // 5 seconds
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const Direction = {
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SENDING: 1,
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RECEIVING: 2,
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};
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const VerifiedStatus = {
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DEFAULT: 0,
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VERIFIED: 1,
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UNVERIFIED: 2,
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};
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function validateVerifiedStatus(status: number): boolean {
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if (
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status === VerifiedStatus.DEFAULT ||
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status === VerifiedStatus.VERIFIED ||
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status === VerifiedStatus.UNVERIFIED
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) {
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return true;
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}
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return false;
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}
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const IdentityRecord = window.Backbone.Model.extend({
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storeName: 'identityKeys',
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validAttributes: [
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'id',
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'publicKey',
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'firstUse',
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'timestamp',
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'verified',
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'nonblockingApproval',
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],
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validate(attrs: IdentityKeyType) {
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const attributeNames = window._.keys(attrs);
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const { validAttributes } = this;
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const allValid = window._.all(attributeNames, attributeName =>
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window._.contains(validAttributes, attributeName)
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);
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if (!allValid) {
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return new Error('Invalid identity key attribute names');
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}
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const allPresent = window._.all(validAttributes, attributeName =>
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window._.contains(attributeNames, attributeName)
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);
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if (!allPresent) {
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return new Error('Missing identity key attributes');
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}
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if (typeof attrs.id !== 'string') {
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return new Error('Invalid identity key id');
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}
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if (!(attrs.publicKey instanceof ArrayBuffer)) {
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return new Error('Invalid identity key publicKey');
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}
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if (typeof attrs.firstUse !== 'boolean') {
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return new Error('Invalid identity key firstUse');
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}
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if (typeof attrs.timestamp !== 'number' || !(attrs.timestamp >= 0)) {
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return new Error('Invalid identity key timestamp');
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}
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if (!validateVerifiedStatus(attrs.verified)) {
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return new Error('Invalid identity key verified');
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}
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if (typeof attrs.nonblockingApproval !== 'boolean') {
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return new Error('Invalid identity key nonblockingApproval');
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}
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return null;
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},
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});
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async function normalizeEncodedAddress(
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encodedAddress: string
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): Promise<string> {
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const [identifier, deviceId] = window.textsecure.utils.unencodeNumber(
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encodedAddress
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);
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try {
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const conv = window.ConversationController.getOrCreate(
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identifier,
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'private'
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);
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return `${conv.get('id')}.${deviceId}`;
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} catch (e) {
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window.log.error(`could not get conversation for identifier ${identifier}`);
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throw e;
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}
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}
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type HasIdType = {
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id: string | number;
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};
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async function _hydrateCache<T extends HasIdType>(
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object: SignalProtocolStore,
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field: keyof SignalProtocolStore,
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itemsPromise: Promise<Array<T>>
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): Promise<void> {
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const items = await itemsPromise;
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const cache: Record<string, T> = Object.create(null);
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for (let i = 0, max = items.length; i < max; i += 1) {
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const item = items[i];
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const { id } = item;
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cache[id] = item;
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}
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window.log.info(`SignalProtocolStore: Finished caching ${field} data`);
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// eslint-disable-next-line no-param-reassign, @typescript-eslint/no-explicit-any
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object[field] = cache as any;
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}
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type KeyPairType = {
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privKey: ArrayBuffer;
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pubKey: ArrayBuffer;
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};
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type IdentityKeyType = {
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firstUse: boolean;
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id: string;
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nonblockingApproval: boolean;
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publicKey: ArrayBuffer;
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timestamp: number;
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verified: number;
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};
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type SessionType = {
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conversationId: string;
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deviceId: number;
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id: string;
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record: string;
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};
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type SignedPreKeyType = {
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confirmed: boolean;
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// eslint-disable-next-line camelcase
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created_at: number;
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id: number;
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privateKey: ArrayBuffer;
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publicKey: ArrayBuffer;
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};
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type OuterSignedPrekeyType = {
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confirmed: boolean;
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// eslint-disable-next-line camelcase
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created_at: number;
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keyId: number;
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privKey: ArrayBuffer;
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pubKey: ArrayBuffer;
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};
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type PreKeyType = {
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id: number;
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privateKey: ArrayBuffer;
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publicKey: ArrayBuffer;
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};
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type UnprocessedType = {
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id: string;
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timestamp: number;
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version: number;
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attempts: number;
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envelope: string;
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decrypted?: string;
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source?: string;
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sourceDevice: string;
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serverTimestamp: number;
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};
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// We add a this parameter to avoid an 'implicit any' error on the next line
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const EventsMixin = (function EventsMixin(this: unknown) {
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window._.assign(this, window.Backbone.Events);
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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} as any) as typeof window.Backbone.EventsMixin;
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export class SignalProtocolStore extends EventsMixin {
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// Enums used across the app
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Direction = Direction;
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VerifiedStatus = VerifiedStatus;
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// Cached values
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ourIdentityKey?: KeyPairType;
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ourRegistrationId?: number;
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identityKeys?: Record<string, IdentityKeyType>;
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sessions?: Record<string, SessionType>;
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signedPreKeys?: Record<string, SignedPreKeyType>;
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preKeys?: Record<string, PreKeyType>;
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async hydrateCaches(): Promise<void> {
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await Promise.all([
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(async () => {
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const item = await window.Signal.Data.getItemById('identityKey');
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this.ourIdentityKey = item ? item.value : undefined;
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})(),
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(async () => {
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const item = await window.Signal.Data.getItemById('registrationId');
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this.ourRegistrationId = item ? item.value : undefined;
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})(),
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_hydrateCache<IdentityKeyType>(
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this,
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'identityKeys',
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window.Signal.Data.getAllIdentityKeys()
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),
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_hydrateCache<SessionType>(
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this,
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'sessions',
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window.Signal.Data.getAllSessions()
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),
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_hydrateCache<PreKeyType>(
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this,
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'preKeys',
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window.Signal.Data.getAllPreKeys()
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),
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_hydrateCache<SignedPreKeyType>(
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this,
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'signedPreKeys',
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window.Signal.Data.getAllSignedPreKeys()
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),
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]);
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}
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async getIdentityKeyPair(): Promise<KeyPairType | undefined> {
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return this.ourIdentityKey;
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}
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async getLocalRegistrationId(): Promise<number | undefined> {
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return this.ourRegistrationId;
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}
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// PreKeys
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async loadPreKey(keyId: string | number): Promise<KeyPairType | undefined> {
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if (!this.preKeys) {
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throw new Error('loadPreKey: this.preKeys not yet cached!');
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}
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const key = this.preKeys[keyId];
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if (key) {
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window.log.info('Successfully fetched prekey:', keyId);
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return {
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pubKey: key.publicKey,
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privKey: key.privateKey,
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};
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}
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window.log.error('Failed to fetch prekey:', keyId);
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return undefined;
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}
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async storePreKey(keyId: number, keyPair: KeyPairType): Promise<void> {
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if (!this.preKeys) {
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throw new Error('storePreKey: this.preKeys not yet cached!');
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}
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const data = {
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id: keyId,
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publicKey: keyPair.pubKey,
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privateKey: keyPair.privKey,
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};
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this.preKeys[keyId] = data;
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await window.Signal.Data.createOrUpdatePreKey(data);
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}
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async removePreKey(keyId: number): Promise<void> {
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if (!this.preKeys) {
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throw new Error('removePreKey: this.preKeys not yet cached!');
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}
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try {
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this.trigger('removePreKey');
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} catch (error) {
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window.log.error(
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'removePreKey error triggering removePreKey:',
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error && error.stack ? error.stack : error
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);
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}
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delete this.preKeys[keyId];
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await window.Signal.Data.removePreKeyById(keyId);
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}
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async clearPreKeyStore(): Promise<void> {
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this.preKeys = Object.create(null);
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await window.Signal.Data.removeAllPreKeys();
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}
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// Signed PreKeys
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async loadSignedPreKey(
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keyId: number
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): Promise<OuterSignedPrekeyType | undefined> {
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if (!this.signedPreKeys) {
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throw new Error('loadSignedPreKey: this.signedPreKeys not yet cached!');
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}
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const key = this.signedPreKeys[keyId];
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if (key) {
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window.log.info('Successfully fetched signed prekey:', key.id);
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return {
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pubKey: key.publicKey,
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privKey: key.privateKey,
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created_at: key.created_at,
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keyId: key.id,
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confirmed: key.confirmed,
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};
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}
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window.log.error('Failed to fetch signed prekey:', keyId);
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return undefined;
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}
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async loadSignedPreKeys(): Promise<Array<OuterSignedPrekeyType>> {
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if (!this.signedPreKeys) {
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throw new Error('loadSignedPreKeys: this.signedPreKeys not yet cached!');
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}
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if (arguments.length > 0) {
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throw new Error('loadSignedPreKeys takes no arguments');
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}
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const keys = Object.values(this.signedPreKeys);
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return keys.map(prekey => ({
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pubKey: prekey.publicKey,
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privKey: prekey.privateKey,
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created_at: prekey.created_at,
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keyId: prekey.id,
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confirmed: prekey.confirmed,
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}));
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}
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async storeSignedPreKey(
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keyId: number,
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keyPair: KeyPairType,
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confirmed?: boolean
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): Promise<void> {
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if (!this.signedPreKeys) {
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throw new Error('storeSignedPreKey: this.signedPreKeys not yet cached!');
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}
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const data = {
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id: keyId,
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publicKey: keyPair.pubKey,
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privateKey: keyPair.privKey,
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created_at: Date.now(),
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confirmed: Boolean(confirmed),
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};
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this.signedPreKeys[keyId] = data;
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await window.Signal.Data.createOrUpdateSignedPreKey(data);
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}
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async removeSignedPreKey(keyId: number): Promise<void> {
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if (!this.signedPreKeys) {
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throw new Error('removeSignedPreKey: this.signedPreKeys not yet cached!');
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}
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delete this.signedPreKeys[keyId];
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await window.Signal.Data.removeSignedPreKeyById(keyId);
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}
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async clearSignedPreKeysStore(): Promise<void> {
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this.signedPreKeys = Object.create(null);
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await window.Signal.Data.removeAllSignedPreKeys();
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}
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// Sessions
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async loadSession(encodedAddress: string): Promise<string | undefined> {
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if (!this.sessions) {
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throw new Error('loadSession: this.sessions not yet cached!');
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}
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if (encodedAddress === null || encodedAddress === undefined) {
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throw new Error('Tried to get session for undefined/null number');
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}
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try {
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const id = await normalizeEncodedAddress(encodedAddress);
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const session = this.sessions[id];
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if (session) {
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return session.record;
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}
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} catch (error) {
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const errorString = error && error.stack ? error.stack : error;
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window.log.error(
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`could not load session ${encodedAddress}: ${errorString}`
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);
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}
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return undefined;
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}
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|
|
async storeSession(encodedAddress: string, record: string): Promise<void> {
|
||
|
|
if (!this.sessions) {
|
||
|
|
throw new Error('storeSession: this.sessions not yet cached!');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (encodedAddress === null || encodedAddress === undefined) {
|
||
|
|
throw new Error('Tried to put session for undefined/null number');
|
||
|
|
}
|
||
|
|
const unencoded = window.textsecure.utils.unencodeNumber(encodedAddress);
|
||
|
|
const deviceId = parseInt(unencoded[1], 10);
|
||
|
|
|
||
|
|
try {
|
||
|
|
const id = await normalizeEncodedAddress(encodedAddress);
|
||
|
|
const previousData = this.sessions[id];
|
||
|
|
|
||
|
|
const data = {
|
||
|
|
id,
|
||
|
|
conversationId: window.textsecure.utils.unencodeNumber(id)[0],
|
||
|
|
deviceId,
|
||
|
|
record,
|
||
|
|
};
|
||
|
|
|
||
|
|
// Optimistically update in-memory cache; will revert if save fails.
|
||
|
|
this.sessions[id] = data;
|
||
|
|
|
||
|
|
try {
|
||
|
|
await window.Signal.Data.createOrUpdateSession(data);
|
||
|
|
} catch (e) {
|
||
|
|
if (previousData) {
|
||
|
|
this.sessions[id] = previousData;
|
||
|
|
}
|
||
|
|
throw e;
|
||
|
|
}
|
||
|
|
} catch (error) {
|
||
|
|
const errorString = error && error.stack ? error.stack : error;
|
||
|
|
window.log.error(
|
||
|
|
`could not store session for ${encodedAddress}: ${errorString}`
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
async getDeviceIds(identifier: string): Promise<Array<number>> {
|
||
|
|
if (!this.sessions) {
|
||
|
|
throw new Error('getDeviceIds: this.sessions not yet cached!');
|
||
|
|
}
|
||
|
|
if (identifier === null || identifier === undefined) {
|
||
|
|
throw new Error('Tried to get device ids for undefined/null number');
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
const id = window.ConversationController.getConversationId(identifier);
|
||
|
|
const allSessions = Object.values(this.sessions);
|
||
|
|
const sessions = allSessions.filter(
|
||
|
|
session => session.conversationId === id
|
||
|
|
);
|
||
|
|
const openSessions = await Promise.all(
|
||
|
|
sessions.map(async session => {
|
||
|
|
const sessionCipher = new window.libsignal.SessionCipher(
|
||
|
|
window.textsecure.storage.protocol,
|
||
|
|
session.id
|
||
|
|
);
|
||
|
|
|
||
|
|
const hasOpenSession = await sessionCipher.hasOpenSession();
|
||
|
|
if (hasOpenSession) {
|
||
|
|
return session;
|
||
|
|
}
|
||
|
|
|
||
|
|
return undefined;
|
||
|
|
})
|
||
|
|
);
|
||
|
|
|
||
|
|
return openSessions.filter(isNotNil).map(item => item.deviceId);
|
||
|
|
} catch (error) {
|
||
|
|
window.log.error(
|
||
|
|
`could not get device ids for identifier ${identifier}`,
|
||
|
|
error && error.stack ? error.stack : error
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
return [];
|
||
|
|
}
|
||
|
|
|
||
|
|
async removeSession(encodedAddress: string): Promise<void> {
|
||
|
|
if (!this.sessions) {
|
||
|
|
throw new Error('removeSession: this.sessions not yet cached!');
|
||
|
|
}
|
||
|
|
|
||
|
|
window.log.info('removeSession: deleting session for', encodedAddress);
|
||
|
|
try {
|
||
|
|
const id = await normalizeEncodedAddress(encodedAddress);
|
||
|
|
delete this.sessions[id];
|
||
|
|
await window.Signal.Data.removeSessionById(id);
|
||
|
|
} catch (e) {
|
||
|
|
window.log.error(`could not delete session for ${encodedAddress}`);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
async removeAllSessions(identifier: string): Promise<void> {
|
||
|
|
if (!this.sessions) {
|
||
|
|
throw new Error('removeAllSessions: this.sessions not yet cached!');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (identifier === null || identifier === undefined) {
|
||
|
|
throw new Error('Tried to remove sessions for undefined/null number');
|
||
|
|
}
|
||
|
|
|
||
|
|
window.log.info('removeAllSessions: deleting sessions for', identifier);
|
||
|
|
|
||
|
|
const id = window.ConversationController.getConversationId(identifier);
|
||
|
|
|
||
|
|
const allSessions = Object.values(this.sessions);
|
||
|
|
|
||
|
|
for (let i = 0, max = allSessions.length; i < max; i += 1) {
|
||
|
|
const session = allSessions[i];
|
||
|
|
if (session.conversationId === id) {
|
||
|
|
delete this.sessions[session.id];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
await window.Signal.Data.removeSessionsByConversation(identifier);
|
||
|
|
}
|
||
|
|
|
||
|
|
async archiveSiblingSessions(identifier: string): Promise<void> {
|
||
|
|
if (!this.sessions) {
|
||
|
|
throw new Error('archiveSiblingSessions: this.sessions not yet cached!');
|
||
|
|
}
|
||
|
|
|
||
|
|
window.log.info(
|
||
|
|
'archiveSiblingSessions: archiving sibling sessions for',
|
||
|
|
identifier
|
||
|
|
);
|
||
|
|
|
||
|
|
const address = window.libsignal.SignalProtocolAddress.fromString(
|
||
|
|
identifier
|
||
|
|
);
|
||
|
|
|
||
|
|
const deviceIds = await this.getDeviceIds(address.getName());
|
||
|
|
const siblings = window._.without(deviceIds, address.getDeviceId());
|
||
|
|
|
||
|
|
await Promise.all(
|
||
|
|
siblings.map(async deviceId => {
|
||
|
|
const sibling = new window.libsignal.SignalProtocolAddress(
|
||
|
|
address.getName(),
|
||
|
|
deviceId
|
||
|
|
);
|
||
|
|
window.log.info(
|
||
|
|
'archiveSiblingSessions: closing session for',
|
||
|
|
sibling.toString()
|
||
|
|
);
|
||
|
|
const sessionCipher = new window.libsignal.SessionCipher(
|
||
|
|
window.textsecure.storage.protocol,
|
||
|
|
sibling
|
||
|
|
);
|
||
|
|
await sessionCipher.closeOpenSessionForDevice();
|
||
|
|
})
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
async archiveAllSessions(identifier: string): Promise<void> {
|
||
|
|
if (!this.sessions) {
|
||
|
|
throw new Error('archiveAllSessions: this.sessions not yet cached!');
|
||
|
|
}
|
||
|
|
|
||
|
|
window.log.info(
|
||
|
|
'archiveAllSessions: archiving all sessions for',
|
||
|
|
identifier
|
||
|
|
);
|
||
|
|
|
||
|
|
const deviceIds = await this.getDeviceIds(identifier);
|
||
|
|
|
||
|
|
await Promise.all(
|
||
|
|
deviceIds.map(async deviceId => {
|
||
|
|
const address = new window.libsignal.SignalProtocolAddress(
|
||
|
|
identifier,
|
||
|
|
deviceId
|
||
|
|
);
|
||
|
|
window.log.info(
|
||
|
|
'archiveAllSessions: closing session for',
|
||
|
|
address.toString()
|
||
|
|
);
|
||
|
|
const sessionCipher = new window.libsignal.SessionCipher(
|
||
|
|
window.textsecure.storage.protocol,
|
||
|
|
address
|
||
|
|
);
|
||
|
|
await sessionCipher.closeOpenSessionForDevice();
|
||
|
|
})
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
async clearSessionStore(): Promise<void> {
|
||
|
|
this.sessions = Object.create(null);
|
||
|
|
window.Signal.Data.removeAllSessions();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Identity Keys
|
||
|
|
|
||
|
|
getIdentityRecord(identifier: string): IdentityKeyType | undefined {
|
||
|
|
if (!this.identityKeys) {
|
||
|
|
throw new Error('getIdentityRecord: this.identityKeys not yet cached!');
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
const id = window.ConversationController.getConversationId(identifier);
|
||
|
|
if (!id) {
|
||
|
|
throw new Error(
|
||
|
|
`getIdentityRecord: No conversation id for identifier ${identifier}`
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
const record = this.identityKeys[id];
|
||
|
|
|
||
|
|
if (record) {
|
||
|
|
return record;
|
||
|
|
}
|
||
|
|
} catch (e) {
|
||
|
|
window.log.error(
|
||
|
|
`could not get identity record for identifier ${identifier}`
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
async isTrustedIdentity(
|
||
|
|
encodedAddress: string,
|
||
|
|
publicKey: ArrayBuffer,
|
||
|
|
direction: number
|
||
|
|
): Promise<boolean> {
|
||
|
|
if (!this.identityKeys) {
|
||
|
|
throw new Error('getIdentityRecord: this.identityKeys not yet cached!');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (encodedAddress === null || encodedAddress === undefined) {
|
||
|
|
throw new Error('Tried to get identity key for undefined/null key');
|
||
|
|
}
|
||
|
|
const identifier = window.textsecure.utils.unencodeNumber(
|
||
|
|
encodedAddress
|
||
|
|
)[0];
|
||
|
|
const ourNumber = window.textsecure.storage.user.getNumber();
|
||
|
|
const ourUuid = window.textsecure.storage.user.getUuid();
|
||
|
|
const isOurIdentifier =
|
||
|
|
(ourNumber && identifier === ourNumber) ||
|
||
|
|
(ourUuid && identifier === ourUuid);
|
||
|
|
|
||
|
|
const identityRecord = this.getIdentityRecord(identifier);
|
||
|
|
|
||
|
|
if (isOurIdentifier) {
|
||
|
|
if (identityRecord && identityRecord.publicKey) {
|
||
|
|
return constantTimeEqual(identityRecord.publicKey, publicKey);
|
||
|
|
}
|
||
|
|
window.log.warn(
|
||
|
|
'isTrustedIdentity: No local record for our own identifier. Returning true.'
|
||
|
|
);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (direction) {
|
||
|
|
case Direction.SENDING:
|
||
|
|
return this.isTrustedForSending(publicKey, identityRecord);
|
||
|
|
case Direction.RECEIVING:
|
||
|
|
return true;
|
||
|
|
default:
|
||
|
|
throw new Error(`Unknown direction: ${direction}`);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
isTrustedForSending(
|
||
|
|
publicKey: ArrayBuffer,
|
||
|
|
identityRecord?: IdentityKeyType
|
||
|
|
): boolean {
|
||
|
|
if (!identityRecord) {
|
||
|
|
window.log.info(
|
||
|
|
'isTrustedForSending: No previous record, returning true...'
|
||
|
|
);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
const existing = identityRecord.publicKey;
|
||
|
|
|
||
|
|
if (!existing) {
|
||
|
|
window.log.info('isTrustedForSending: Nothing here, returning true...');
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
if (!constantTimeEqual(existing, publicKey)) {
|
||
|
|
window.log.info("isTrustedForSending: Identity keys don't match...");
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (identityRecord.verified === VerifiedStatus.UNVERIFIED) {
|
||
|
|
window.log.error('Needs unverified approval!');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
if (this.isNonBlockingApprovalRequired(identityRecord)) {
|
||
|
|
window.log.error('isTrustedForSending: Needs non-blocking approval!');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
async loadIdentityKey(identifier: string): Promise<ArrayBuffer | undefined> {
|
||
|
|
if (identifier === null || identifier === undefined) {
|
||
|
|
throw new Error('Tried to get identity key for undefined/null key');
|
||
|
|
}
|
||
|
|
const id = window.textsecure.utils.unencodeNumber(identifier)[0];
|
||
|
|
const identityRecord = this.getIdentityRecord(id);
|
||
|
|
|
||
|
|
if (identityRecord) {
|
||
|
|
return identityRecord.publicKey;
|
||
|
|
}
|
||
|
|
|
||
|
|
return undefined;
|
||
|
|
}
|
||
|
|
|
||
|
|
private async _saveIdentityKey(data: IdentityKeyType): Promise<void> {
|
||
|
|
if (!this.identityKeys) {
|
||
|
|
throw new Error('_saveIdentityKey: this.identityKeys not yet cached!');
|
||
|
|
}
|
||
|
|
|
||
|
|
const { id } = data;
|
||
|
|
|
||
|
|
const previousData = this.identityKeys[id];
|
||
|
|
|
||
|
|
// Optimistically update in-memory cache; will revert if save fails.
|
||
|
|
this.identityKeys[id] = data;
|
||
|
|
|
||
|
|
try {
|
||
|
|
await window.Signal.Data.createOrUpdateIdentityKey(data);
|
||
|
|
} catch (error) {
|
||
|
|
if (previousData) {
|
||
|
|
this.identityKeys[id] = previousData;
|
||
|
|
}
|
||
|
|
|
||
|
|
throw error;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
async saveIdentity(
|
||
|
|
encodedAddress: string,
|
||
|
|
publicKey: ArrayBuffer,
|
||
|
|
nonblockingApproval: boolean
|
||
|
|
): Promise<boolean> {
|
||
|
|
if (!this.identityKeys) {
|
||
|
|
throw new Error('saveIdentity: this.identityKeys not yet cached!');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (encodedAddress === null || encodedAddress === undefined) {
|
||
|
|
throw new Error('Tried to put identity key for undefined/null key');
|
||
|
|
}
|
||
|
|
if (!(publicKey instanceof ArrayBuffer)) {
|
||
|
|
// eslint-disable-next-line no-param-reassign
|
||
|
|
publicKey = fromEncodedBinaryToArrayBuffer(publicKey);
|
||
|
|
}
|
||
|
|
if (typeof nonblockingApproval !== 'boolean') {
|
||
|
|
// eslint-disable-next-line no-param-reassign
|
||
|
|
nonblockingApproval = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
const identifier = window.textsecure.utils.unencodeNumber(
|
||
|
|
encodedAddress
|
||
|
|
)[0];
|
||
|
|
const identityRecord = this.getIdentityRecord(identifier);
|
||
|
|
const id = window.ConversationController.getOrCreate(
|
||
|
|
identifier,
|
||
|
|
'private'
|
||
|
|
).get('id');
|
||
|
|
|
||
|
|
if (!identityRecord || !identityRecord.publicKey) {
|
||
|
|
// Lookup failed, or the current key was removed, so save this one.
|
||
|
|
window.log.info('Saving new identity...');
|
||
|
|
await this._saveIdentityKey({
|
||
|
|
id,
|
||
|
|
publicKey,
|
||
|
|
firstUse: true,
|
||
|
|
timestamp: Date.now(),
|
||
|
|
verified: VerifiedStatus.DEFAULT,
|
||
|
|
nonblockingApproval,
|
||
|
|
});
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
const oldpublicKey = identityRecord.publicKey;
|
||
|
|
if (!constantTimeEqual(oldpublicKey, publicKey)) {
|
||
|
|
window.log.info('Replacing existing identity...');
|
||
|
|
const previousStatus = identityRecord.verified;
|
||
|
|
let verifiedStatus;
|
||
|
|
if (
|
||
|
|
previousStatus === VerifiedStatus.VERIFIED ||
|
||
|
|
previousStatus === VerifiedStatus.UNVERIFIED
|
||
|
|
) {
|
||
|
|
verifiedStatus = VerifiedStatus.UNVERIFIED;
|
||
|
|
} else {
|
||
|
|
verifiedStatus = VerifiedStatus.DEFAULT;
|
||
|
|
}
|
||
|
|
|
||
|
|
await this._saveIdentityKey({
|
||
|
|
id,
|
||
|
|
publicKey,
|
||
|
|
firstUse: false,
|
||
|
|
timestamp: Date.now(),
|
||
|
|
verified: verifiedStatus,
|
||
|
|
nonblockingApproval,
|
||
|
|
});
|
||
|
|
|
||
|
|
try {
|
||
|
|
this.trigger('keychange', identifier);
|
||
|
|
} catch (error) {
|
||
|
|
window.log.error(
|
||
|
|
'saveIdentity error triggering keychange:',
|
||
|
|
error && error.stack ? error.stack : error
|
||
|
|
);
|
||
|
|
}
|
||
|
|
await this.archiveSiblingSessions(encodedAddress);
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
if (this.isNonBlockingApprovalRequired(identityRecord)) {
|
||
|
|
window.log.info('Setting approval status...');
|
||
|
|
|
||
|
|
identityRecord.nonblockingApproval = nonblockingApproval;
|
||
|
|
await this._saveIdentityKey(identityRecord);
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
isNonBlockingApprovalRequired(identityRecord: IdentityKeyType): boolean {
|
||
|
|
return (
|
||
|
|
!identityRecord.firstUse &&
|
||
|
|
Date.now() - identityRecord.timestamp < TIMESTAMP_THRESHOLD &&
|
||
|
|
!identityRecord.nonblockingApproval
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
async saveIdentityWithAttributes(
|
||
|
|
encodedAddress: string,
|
||
|
|
attributes: IdentityKeyType
|
||
|
|
): Promise<void> {
|
||
|
|
if (encodedAddress === null || encodedAddress === undefined) {
|
||
|
|
throw new Error('Tried to put identity key for undefined/null key');
|
||
|
|
}
|
||
|
|
|
||
|
|
const identifier = window.textsecure.utils.unencodeNumber(
|
||
|
|
encodedAddress
|
||
|
|
)[0];
|
||
|
|
const identityRecord = this.getIdentityRecord(identifier);
|
||
|
|
const conv = window.ConversationController.getOrCreate(
|
||
|
|
identifier,
|
||
|
|
'private'
|
||
|
|
);
|
||
|
|
const id = conv.get('id');
|
||
|
|
|
||
|
|
const updates = {
|
||
|
|
...identityRecord,
|
||
|
|
...attributes,
|
||
|
|
id,
|
||
|
|
};
|
||
|
|
|
||
|
|
const model = new IdentityRecord(updates);
|
||
|
|
if (model.isValid()) {
|
||
|
|
await this._saveIdentityKey(updates);
|
||
|
|
} else {
|
||
|
|
throw model.validationError;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
async setApproval(
|
||
|
|
encodedAddress: string,
|
||
|
|
nonblockingApproval: boolean
|
||
|
|
): Promise<void> {
|
||
|
|
if (encodedAddress === null || encodedAddress === undefined) {
|
||
|
|
throw new Error('Tried to set approval for undefined/null identifier');
|
||
|
|
}
|
||
|
|
if (typeof nonblockingApproval !== 'boolean') {
|
||
|
|
throw new Error('Invalid approval status');
|
||
|
|
}
|
||
|
|
|
||
|
|
const identifier = window.textsecure.utils.unencodeNumber(
|
||
|
|
encodedAddress
|
||
|
|
)[0];
|
||
|
|
const identityRecord = this.getIdentityRecord(identifier);
|
||
|
|
|
||
|
|
if (!identityRecord) {
|
||
|
|
throw new Error(`No identity record for ${identifier}`);
|
||
|
|
}
|
||
|
|
|
||
|
|
identityRecord.nonblockingApproval = nonblockingApproval;
|
||
|
|
await this._saveIdentityKey(identityRecord);
|
||
|
|
}
|
||
|
|
|
||
|
|
async setVerified(
|
||
|
|
encodedAddress: string,
|
||
|
|
verifiedStatus: number,
|
||
|
|
publicKey: ArrayBuffer
|
||
|
|
): Promise<void> {
|
||
|
|
if (encodedAddress === null || encodedAddress === undefined) {
|
||
|
|
throw new Error('Tried to set verified for undefined/null key');
|
||
|
|
}
|
||
|
|
if (!validateVerifiedStatus(verifiedStatus)) {
|
||
|
|
throw new Error('Invalid verified status');
|
||
|
|
}
|
||
|
|
if (arguments.length > 2 && !(publicKey instanceof ArrayBuffer)) {
|
||
|
|
throw new Error('Invalid public key');
|
||
|
|
}
|
||
|
|
|
||
|
|
const identityRecord = this.getIdentityRecord(encodedAddress);
|
||
|
|
|
||
|
|
if (!identityRecord) {
|
||
|
|
throw new Error(`No identity record for ${encodedAddress}`);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!publicKey || constantTimeEqual(identityRecord.publicKey, publicKey)) {
|
||
|
|
identityRecord.verified = verifiedStatus;
|
||
|
|
|
||
|
|
const model = new IdentityRecord(identityRecord);
|
||
|
|
if (model.isValid()) {
|
||
|
|
await this._saveIdentityKey(identityRecord);
|
||
|
|
} else if (model.validationError) {
|
||
|
|
throw model.validationError;
|
||
|
|
} else {
|
||
|
|
throw new Error('setVerified: identity record data was invalid');
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
window.log.info('No identity record for specified publicKey');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
async getVerified(identifier: string): Promise<number> {
|
||
|
|
if (identifier === null || identifier === undefined) {
|
||
|
|
throw new Error('Tried to set verified for undefined/null key');
|
||
|
|
}
|
||
|
|
|
||
|
|
const identityRecord = this.getIdentityRecord(identifier);
|
||
|
|
if (!identityRecord) {
|
||
|
|
throw new Error(`No identity record for ${identifier}`);
|
||
|
|
}
|
||
|
|
|
||
|
|
const verifiedStatus = identityRecord.verified;
|
||
|
|
if (validateVerifiedStatus(verifiedStatus)) {
|
||
|
|
return verifiedStatus;
|
||
|
|
}
|
||
|
|
|
||
|
|
return VerifiedStatus.DEFAULT;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Resolves to true if a new identity key was saved
|
||
|
|
processContactSyncVerificationState(
|
||
|
|
identifier: string,
|
||
|
|
verifiedStatus: number,
|
||
|
|
publicKey: ArrayBuffer
|
||
|
|
): Promise<boolean> {
|
||
|
|
if (verifiedStatus === VerifiedStatus.UNVERIFIED) {
|
||
|
|
return this.processUnverifiedMessage(
|
||
|
|
identifier,
|
||
|
|
verifiedStatus,
|
||
|
|
publicKey
|
||
|
|
);
|
||
|
|
}
|
||
|
|
return this.processVerifiedMessage(identifier, verifiedStatus, publicKey);
|
||
|
|
}
|
||
|
|
|
||
|
|
// This function encapsulates the non-Java behavior, since the mobile apps don't
|
||
|
|
// currently receive contact syncs and therefore will see a verify sync with
|
||
|
|
// UNVERIFIED status
|
||
|
|
async processUnverifiedMessage(
|
||
|
|
identifier: string,
|
||
|
|
verifiedStatus: number,
|
||
|
|
publicKey?: ArrayBuffer
|
||
|
|
): Promise<boolean> {
|
||
|
|
if (identifier === null || identifier === undefined) {
|
||
|
|
throw new Error('Tried to set verified for undefined/null key');
|
||
|
|
}
|
||
|
|
if (publicKey !== undefined && !(publicKey instanceof ArrayBuffer)) {
|
||
|
|
throw new Error('Invalid public key');
|
||
|
|
}
|
||
|
|
|
||
|
|
const identityRecord = this.getIdentityRecord(identifier);
|
||
|
|
|
||
|
|
let isEqual = false;
|
||
|
|
|
||
|
|
if (identityRecord && publicKey) {
|
||
|
|
isEqual = constantTimeEqual(publicKey, identityRecord.publicKey);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (
|
||
|
|
identityRecord &&
|
||
|
|
isEqual &&
|
||
|
|
identityRecord.verified !== VerifiedStatus.UNVERIFIED
|
||
|
|
) {
|
||
|
|
await window.textsecure.storage.protocol.setVerified(
|
||
|
|
identifier,
|
||
|
|
verifiedStatus,
|
||
|
|
publicKey
|
||
|
|
);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (publicKey && (!identityRecord || !isEqual)) {
|
||
|
|
await window.textsecure.storage.protocol.saveIdentityWithAttributes(
|
||
|
|
identifier,
|
||
|
|
{
|
||
|
|
publicKey,
|
||
|
|
verified: verifiedStatus,
|
||
|
|
firstUse: false,
|
||
|
|
timestamp: Date.now(),
|
||
|
|
nonblockingApproval: true,
|
||
|
|
}
|
||
|
|
);
|
||
|
|
|
||
|
|
if (identityRecord && !isEqual) {
|
||
|
|
try {
|
||
|
|
this.trigger('keychange', identifier);
|
||
|
|
} catch (error) {
|
||
|
|
window.log.error(
|
||
|
|
'processUnverifiedMessage error triggering keychange:',
|
||
|
|
error && error.stack ? error.stack : error
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
await this.archiveAllSessions(identifier);
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// The situation which could get us here is:
|
||
|
|
// 1. had a previous key
|
||
|
|
// 2. new key is the same
|
||
|
|
// 3. desired new status is same as what we had before
|
||
|
|
// 4. no publicKey was passed into this function
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// This matches the Java method as of
|
||
|
|
// https://github.com/signalapp/Signal-Android/blob/d0bb68e1378f689e4d10ac6a46014164992ca4e4/src/org/thoughtcrime/securesms/util/IdentityUtil.java#L188
|
||
|
|
async processVerifiedMessage(
|
||
|
|
identifier: string,
|
||
|
|
verifiedStatus: number,
|
||
|
|
publicKey: ArrayBuffer
|
||
|
|
): Promise<boolean> {
|
||
|
|
if (identifier === null || identifier === undefined) {
|
||
|
|
throw new Error('Tried to set verified for undefined/null key');
|
||
|
|
}
|
||
|
|
if (!validateVerifiedStatus(verifiedStatus)) {
|
||
|
|
throw new Error('Invalid verified status');
|
||
|
|
}
|
||
|
|
if (publicKey !== undefined && !(publicKey instanceof ArrayBuffer)) {
|
||
|
|
throw new Error('Invalid public key');
|
||
|
|
}
|
||
|
|
|
||
|
|
const identityRecord = this.getIdentityRecord(identifier);
|
||
|
|
|
||
|
|
let isEqual = false;
|
||
|
|
|
||
|
|
if (identityRecord && publicKey) {
|
||
|
|
isEqual = constantTimeEqual(publicKey, identityRecord.publicKey);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!identityRecord && verifiedStatus === VerifiedStatus.DEFAULT) {
|
||
|
|
window.log.info('No existing record for default status');
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (
|
||
|
|
identityRecord &&
|
||
|
|
isEqual &&
|
||
|
|
identityRecord.verified !== VerifiedStatus.DEFAULT &&
|
||
|
|
verifiedStatus === VerifiedStatus.DEFAULT
|
||
|
|
) {
|
||
|
|
await window.textsecure.storage.protocol.setVerified(
|
||
|
|
identifier,
|
||
|
|
verifiedStatus,
|
||
|
|
publicKey
|
||
|
|
);
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (
|
||
|
|
verifiedStatus === VerifiedStatus.VERIFIED &&
|
||
|
|
(!identityRecord ||
|
||
|
|
(identityRecord && !isEqual) ||
|
||
|
|
(identityRecord && identityRecord.verified !== VerifiedStatus.VERIFIED))
|
||
|
|
) {
|
||
|
|
await window.textsecure.storage.protocol.saveIdentityWithAttributes(
|
||
|
|
identifier,
|
||
|
|
{
|
||
|
|
publicKey,
|
||
|
|
verified: verifiedStatus,
|
||
|
|
firstUse: false,
|
||
|
|
timestamp: Date.now(),
|
||
|
|
nonblockingApproval: true,
|
||
|
|
}
|
||
|
|
);
|
||
|
|
|
||
|
|
if (identityRecord && !isEqual) {
|
||
|
|
try {
|
||
|
|
this.trigger('keychange', identifier);
|
||
|
|
} catch (error) {
|
||
|
|
window.log.error(
|
||
|
|
'processVerifiedMessage error triggering keychange:',
|
||
|
|
error && error.stack ? error.stack : error
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
await this.archiveAllSessions(identifier);
|
||
|
|
|
||
|
|
// true signifies that we overwrote a previous key with a new one
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// We get here if we got a new key and the status is DEFAULT. If the
|
||
|
|
// message is out of date, we don't want to lose whatever more-secure
|
||
|
|
// state we had before.
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
isUntrusted(identifier: string): boolean {
|
||
|
|
if (identifier === null || identifier === undefined) {
|
||
|
|
throw new Error('Tried to set verified for undefined/null key');
|
||
|
|
}
|
||
|
|
|
||
|
|
const identityRecord = this.getIdentityRecord(identifier);
|
||
|
|
if (!identityRecord) {
|
||
|
|
throw new Error(`No identity record for ${identifier}`);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (
|
||
|
|
Date.now() - identityRecord.timestamp < TIMESTAMP_THRESHOLD &&
|
||
|
|
!identityRecord.nonblockingApproval &&
|
||
|
|
!identityRecord.firstUse
|
||
|
|
) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
async removeIdentityKey(identifier: string): Promise<void> {
|
||
|
|
if (!this.identityKeys) {
|
||
|
|
throw new Error('removeIdentityKey: this.identityKeys not yet cached!');
|
||
|
|
}
|
||
|
|
|
||
|
|
const id = window.ConversationController.getConversationId(identifier);
|
||
|
|
if (id) {
|
||
|
|
delete this.identityKeys[id];
|
||
|
|
await window.Signal.Data.removeIdentityKeyById(id);
|
||
|
|
await window.textsecure.storage.protocol.removeAllSessions(id);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Not yet processed messages - for resiliency
|
||
|
|
getUnprocessedCount(): Promise<number> {
|
||
|
|
return window.Signal.Data.getUnprocessedCount();
|
||
|
|
}
|
||
|
|
|
||
|
|
getAllUnprocessed(): Promise<Array<UnprocessedType>> {
|
||
|
|
return window.Signal.Data.getAllUnprocessed();
|
||
|
|
}
|
||
|
|
|
||
|
|
getUnprocessedById(id: string): Promise<UnprocessedType | undefined> {
|
||
|
|
return window.Signal.Data.getUnprocessedById(id);
|
||
|
|
}
|
||
|
|
|
||
|
|
addUnprocessed(data: UnprocessedType): Promise<number> {
|
||
|
|
// We need to pass forceSave because the data has an id already, which will cause
|
||
|
|
// an update instead of an insert.
|
||
|
|
return window.Signal.Data.saveUnprocessed(data, {
|
||
|
|
forceSave: true,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
addMultipleUnprocessed(array: Array<UnprocessedType>): Promise<void> {
|
||
|
|
// We need to pass forceSave because the data has an id already, which will cause
|
||
|
|
// an update instead of an insert.
|
||
|
|
return window.Signal.Data.saveUnprocesseds(array, {
|
||
|
|
forceSave: true,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
updateUnprocessedAttempts(id: string, attempts: number): Promise<void> {
|
||
|
|
return window.Signal.Data.updateUnprocessedAttempts(id, attempts);
|
||
|
|
}
|
||
|
|
|
||
|
|
updateUnprocessedWithData(id: string, data: UnprocessedType): Promise<void> {
|
||
|
|
return window.Signal.Data.updateUnprocessedWithData(id, data);
|
||
|
|
}
|
||
|
|
|
||
|
|
updateUnprocessedsWithData(items: Array<UnprocessedType>): Promise<void> {
|
||
|
|
return window.Signal.Data.updateUnprocessedsWithData(items);
|
||
|
|
}
|
||
|
|
|
||
|
|
removeUnprocessed(idOrArray: string | Array<string>): Promise<void> {
|
||
|
|
return window.Signal.Data.removeUnprocessed(idOrArray);
|
||
|
|
}
|
||
|
|
|
||
|
|
removeAllUnprocessed(): Promise<void> {
|
||
|
|
return window.Signal.Data.removeAllUnprocessed();
|
||
|
|
}
|
||
|
|
|
||
|
|
async removeAllData(): Promise<void> {
|
||
|
|
await window.Signal.Data.removeAll();
|
||
|
|
await this.hydrateCaches();
|
||
|
|
|
||
|
|
window.storage.reset();
|
||
|
|
await window.storage.fetch();
|
||
|
|
|
||
|
|
window.ConversationController.reset();
|
||
|
|
await window.ConversationController.load();
|
||
|
|
}
|
||
|
|
|
||
|
|
async removeAllConfiguration(): Promise<void> {
|
||
|
|
await window.Signal.Data.removeAllConfiguration();
|
||
|
|
await this.hydrateCaches();
|
||
|
|
|
||
|
|
window.storage.reset();
|
||
|
|
await window.storage.fetch();
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||
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}
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||
|
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}
|
||
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|
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||
|
|
window.SignalProtocolStore = SignalProtocolStore;
|