1971 lines
55 KiB
TypeScript
1971 lines
55 KiB
TypeScript
// Copyright 2016-2022 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import PQueue from 'p-queue';
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import { isNumber } from 'lodash';
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import { z } from 'zod';
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import {
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Direction,
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PreKeyRecord,
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PrivateKey,
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PublicKey,
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SenderKeyRecord,
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SessionRecord,
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SignedPreKeyRecord,
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} from '@signalapp/libsignal-client';
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import * as Bytes from './Bytes';
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import { constantTimeEqual } from './Crypto';
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import { assert, strictAssert } from './util/assert';
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import { isNotNil } from './util/isNotNil';
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import { Zone } from './util/Zone';
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import { isMoreRecentThan } from './util/timestamp';
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import {
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sessionRecordToProtobuf,
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sessionStructureToBytes,
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} from './util/sessionTranslation';
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import type {
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DeviceType,
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IdentityKeyType,
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IdentityKeyIdType,
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KeyPairType,
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OuterSignedPrekeyType,
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PreKeyIdType,
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PreKeyType,
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SenderKeyIdType,
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SenderKeyType,
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SessionIdType,
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SessionResetsType,
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SessionType,
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SignedPreKeyIdType,
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SignedPreKeyType,
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UnprocessedType,
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UnprocessedUpdateType,
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} from './textsecure/Types.d';
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import type { RemoveAllConfiguration } from './types/RemoveAllConfiguration';
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import type { UUIDStringType } from './types/UUID';
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import { UUID, UUIDKind } from './types/UUID';
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import type { Address } from './types/Address';
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import type { QualifiedAddressStringType } from './types/QualifiedAddress';
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import { QualifiedAddress } from './types/QualifiedAddress';
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import * as log from './logging/log';
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import { singleProtoJobQueue } from './jobs/singleProtoJobQueue';
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import * as Errors from './types/errors';
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import MessageSender from './textsecure/SendMessage';
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const TIMESTAMP_THRESHOLD = 5 * 1000; // 5 seconds
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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 identityKeySchema = z.object({
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id: z.string(),
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publicKey: z.instanceof(Uint8Array),
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firstUse: z.boolean(),
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timestamp: z.number().refine((value: number) => value % 1 === 0 && value > 0),
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verified: z.number().refine(validateVerifiedStatus),
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nonblockingApproval: z.boolean(),
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});
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function validateIdentityKey(attrs: unknown): attrs is IdentityKeyType {
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// We'll throw if this doesn't match
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identityKeySchema.parse(attrs);
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return true;
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}
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type HasIdType<T> = {
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id: T;
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};
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type CacheEntryType<DBType, HydratedType> =
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| {
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hydrated: false;
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fromDB: DBType;
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}
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| { hydrated: true; fromDB: DBType; item: HydratedType };
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type MapFields =
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| 'identityKeys'
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| 'preKeys'
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| 'senderKeys'
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| 'sessions'
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| 'signedPreKeys';
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export type SessionTransactionOptions = {
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readonly zone?: Zone;
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};
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export const GLOBAL_ZONE = new Zone('GLOBAL_ZONE');
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async function _fillCaches<ID, T extends HasIdType<ID>, HydratedType>(
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object: SignalProtocolStore,
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field: MapFields,
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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 = new Map<ID, CacheEntryType<T, HydratedType>>();
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for (let i = 0, max = items.length; i < max; i += 1) {
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const fromDB = items[i];
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const { id } = fromDB;
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cache.set(id, {
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fromDB,
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hydrated: false,
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});
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}
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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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export function hydrateSession(session: SessionType): SessionRecord {
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return SessionRecord.deserialize(Buffer.from(session.record, 'base64'));
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}
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export function hydratePublicKey(identityKey: IdentityKeyType): PublicKey {
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return PublicKey.deserialize(Buffer.from(identityKey.publicKey));
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}
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export function hydratePreKey(preKey: PreKeyType): PreKeyRecord {
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const publicKey = PublicKey.deserialize(Buffer.from(preKey.publicKey));
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const privateKey = PrivateKey.deserialize(Buffer.from(preKey.privateKey));
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return PreKeyRecord.new(preKey.keyId, publicKey, privateKey);
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}
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export function hydrateSignedPreKey(
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signedPreKey: SignedPreKeyType
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): SignedPreKeyRecord {
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const createdAt = signedPreKey.created_at;
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const pubKey = PublicKey.deserialize(Buffer.from(signedPreKey.publicKey));
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const privKey = PrivateKey.deserialize(Buffer.from(signedPreKey.privateKey));
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const signature = Buffer.from([]);
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return SignedPreKeyRecord.new(
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signedPreKey.keyId,
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createdAt,
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pubKey,
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privKey,
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signature
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);
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}
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export function freezeSession(session: SessionRecord): string {
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return session.serialize().toString('base64');
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}
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export function freezePublicKey(publicKey: PublicKey): Uint8Array {
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return publicKey.serialize();
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}
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export function freezePreKey(preKey: PreKeyRecord): KeyPairType {
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const keyPair = {
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pubKey: preKey.publicKey().serialize(),
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privKey: preKey.privateKey().serialize(),
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};
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return keyPair;
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}
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export function freezeSignedPreKey(
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signedPreKey: SignedPreKeyRecord
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): KeyPairType {
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const keyPair = {
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pubKey: signedPreKey.publicKey().serialize(),
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privKey: signedPreKey.privateKey().serialize(),
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};
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return keyPair;
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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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Object.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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type SessionCacheEntry = CacheEntryType<SessionType, SessionRecord>;
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type SenderKeyCacheEntry = CacheEntryType<SenderKeyType, SenderKeyRecord>;
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type ZoneQueueEntryType = Readonly<{
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zone: Zone;
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callback(): void;
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}>;
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export class SignalProtocolStore extends EventsMixin {
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// Enums used across the app
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VerifiedStatus = VerifiedStatus;
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// Cached values
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private ourIdentityKeys = new Map<UUIDStringType, KeyPairType>();
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private ourRegistrationIds = new Map<UUIDStringType, number>();
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identityKeys?: Map<
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IdentityKeyIdType,
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CacheEntryType<IdentityKeyType, PublicKey>
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>;
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senderKeys?: Map<SenderKeyIdType, SenderKeyCacheEntry>;
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sessions?: Map<SessionIdType, SessionCacheEntry>;
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preKeys?: Map<PreKeyIdType, CacheEntryType<PreKeyType, PreKeyRecord>>;
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signedPreKeys?: Map<
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SignedPreKeyIdType,
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CacheEntryType<SignedPreKeyType, SignedPreKeyRecord>
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>;
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senderKeyQueues = new Map<QualifiedAddressStringType, PQueue>();
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sessionQueues = new Map<SessionIdType, PQueue>();
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private currentZone?: Zone;
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private currentZoneDepth = 0;
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private readonly zoneQueue: Array<ZoneQueueEntryType> = [];
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private pendingSessions = new Map<SessionIdType, SessionCacheEntry>();
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private pendingSenderKeys = new Map<SenderKeyIdType, SenderKeyCacheEntry>();
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private pendingUnprocessed = new Map<string, UnprocessedType>();
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async hydrateCaches(): Promise<void> {
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await Promise.all([
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(async () => {
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this.ourIdentityKeys.clear();
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const map = await window.Signal.Data.getItemById('identityKeyMap');
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if (!map) {
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return;
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}
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for (const key of Object.keys(map.value)) {
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const { privKey, pubKey } = map.value[key];
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this.ourIdentityKeys.set(new UUID(key).toString(), {
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privKey: Bytes.fromBase64(privKey),
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pubKey: Bytes.fromBase64(pubKey),
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});
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}
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})(),
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(async () => {
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this.ourRegistrationIds.clear();
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const map = await window.Signal.Data.getItemById('registrationIdMap');
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if (!map) {
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return;
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}
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for (const key of Object.keys(map.value)) {
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this.ourRegistrationIds.set(new UUID(key).toString(), map.value[key]);
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}
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})(),
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_fillCaches<string, IdentityKeyType, PublicKey>(
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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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_fillCaches<string, SessionType, SessionRecord>(
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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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_fillCaches<string, PreKeyType, PreKeyRecord>(
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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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_fillCaches<string, SenderKeyType, SenderKeyRecord>(
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this,
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'senderKeys',
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window.Signal.Data.getAllSenderKeys()
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),
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_fillCaches<string, SignedPreKeyType, SignedPreKeyRecord>(
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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(ourUuid: UUID): Promise<KeyPairType | undefined> {
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return this.ourIdentityKeys.get(ourUuid.toString());
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}
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async getLocalRegistrationId(ourUuid: UUID): Promise<number | undefined> {
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return this.ourRegistrationIds.get(ourUuid.toString());
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}
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// PreKeys
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async loadPreKey(
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ourUuid: UUID,
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keyId: number
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): Promise<PreKeyRecord | 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 id: PreKeyIdType = `${ourUuid.toString()}:${keyId}`;
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const entry = this.preKeys.get(id);
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if (!entry) {
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log.error('Failed to fetch prekey:', id);
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return undefined;
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}
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if (entry.hydrated) {
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log.info('Successfully fetched prekey (cache hit):', id);
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return entry.item;
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}
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const item = hydratePreKey(entry.fromDB);
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this.preKeys.set(id, {
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hydrated: true,
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fromDB: entry.fromDB,
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item,
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});
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log.info('Successfully fetched prekey (cache miss):', id);
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return item;
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}
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async storePreKey(
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ourUuid: UUID,
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keyId: number,
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keyPair: KeyPairType
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): 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 id: PreKeyIdType = `${ourUuid.toString()}:${keyId}`;
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if (this.preKeys.has(id)) {
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throw new Error(`storePreKey: prekey ${id} already exists!`);
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}
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const fromDB = {
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id,
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keyId,
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ourUuid: ourUuid.toString(),
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publicKey: keyPair.pubKey,
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privateKey: keyPair.privKey,
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};
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await window.Signal.Data.createOrUpdatePreKey(fromDB);
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this.preKeys.set(id, {
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hydrated: false,
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fromDB,
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});
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}
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async removePreKey(ourUuid: UUID, keyId: number): Promise<void> {
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if (!this.preKeys) {
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throw new Error('removePreKey: this.preKeys not yet cached!');
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}
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const id: PreKeyIdType = `${ourUuid.toString()}:${keyId}`;
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try {
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this.trigger('removePreKey', ourUuid);
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} catch (error) {
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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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this.preKeys.delete(id);
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await window.Signal.Data.removePreKeyById(id);
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}
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async clearPreKeyStore(): Promise<void> {
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if (this.preKeys) {
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this.preKeys.clear();
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}
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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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ourUuid: UUID,
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keyId: number
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): Promise<SignedPreKeyRecord | 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 id: SignedPreKeyIdType = `${ourUuid.toString()}:${keyId}`;
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const entry = this.signedPreKeys.get(id);
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if (!entry) {
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log.error('Failed to fetch signed prekey:', id);
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return undefined;
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}
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if (entry.hydrated) {
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log.info('Successfully fetched signed prekey (cache hit):', id);
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return entry.item;
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}
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const item = hydrateSignedPreKey(entry.fromDB);
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this.signedPreKeys.set(id, {
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hydrated: true,
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item,
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fromDB: entry.fromDB,
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});
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log.info('Successfully fetched signed prekey (cache miss):', id);
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return item;
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}
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async loadSignedPreKeys(
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ourUuid: UUID
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): 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 > 1) {
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throw new Error('loadSignedPreKeys takes one argument');
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}
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const entries = Array.from(this.signedPreKeys.values());
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return entries
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.filter(({ fromDB }) => fromDB.ourUuid === ourUuid.toString())
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.map(entry => {
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const preKey = entry.fromDB;
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return {
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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.keyId,
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confirmed: preKey.confirmed,
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};
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});
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}
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// Note that this is also called in update scenarios, for confirming that signed prekeys
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// have indeed been accepted by the server.
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async storeSignedPreKey(
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ourUuid: UUID,
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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 id: SignedPreKeyIdType = `${ourUuid.toString()}:${keyId}`;
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const fromDB = {
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id,
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ourUuid: ourUuid.toString(),
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keyId,
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publicKey: keyPair.pubKey,
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privateKey: keyPair.privKey,
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created_at: Date.now(),
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confirmed: Boolean(confirmed),
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};
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await window.Signal.Data.createOrUpdateSignedPreKey(fromDB);
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this.signedPreKeys.set(id, {
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hydrated: false,
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fromDB,
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});
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}
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async removeSignedPreKey(ourUuid: UUID, keyId: number): Promise<void> {
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if (!this.signedPreKeys) {
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throw new Error('removeSignedPreKey: this.signedPreKeys not yet cached!');
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}
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const id: SignedPreKeyIdType = `${ourUuid.toString()}:${keyId}`;
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this.signedPreKeys.delete(id);
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await window.Signal.Data.removeSignedPreKeyById(id);
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}
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async clearSignedPreKeysStore(): Promise<void> {
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if (this.signedPreKeys) {
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this.signedPreKeys.clear();
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}
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await window.Signal.Data.removeAllSignedPreKeys();
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}
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// Sender Key
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// Re-entrant sender key transaction routine. Only one sender key transaction could
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// be running at the same time.
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//
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// While in transaction:
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//
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// - `saveSenderKey()` adds the updated session to the `pendingSenderKeys`
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// - `getSenderKey()` looks up the session first in `pendingSenderKeys` and only
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// then in the main `senderKeys` store
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//
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// When transaction ends:
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//
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// - successfully: pending sender key stores are batched into the database
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// - with an error: pending sender key stores are reverted
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async enqueueSenderKeyJob<T>(
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qualifiedAddress: QualifiedAddress,
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task: () => Promise<T>,
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zone = GLOBAL_ZONE
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): Promise<T> {
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return this.withZone(zone, 'enqueueSenderKeyJob', async () => {
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const queue = this._getSenderKeyQueue(qualifiedAddress);
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return queue.add<T>(task);
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});
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}
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private _createSenderKeyQueue(): PQueue {
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return new PQueue({
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concurrency: 1,
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timeout: 1000 * 60 * 2,
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throwOnTimeout: true,
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});
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}
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private _getSenderKeyQueue(senderId: QualifiedAddress): PQueue {
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const cachedQueue = this.senderKeyQueues.get(senderId.toString());
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if (cachedQueue) {
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return cachedQueue;
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}
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const freshQueue = this._createSenderKeyQueue();
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this.senderKeyQueues.set(senderId.toString(), freshQueue);
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return freshQueue;
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}
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private getSenderKeyId(
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senderKeyId: QualifiedAddress,
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distributionId: string
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): SenderKeyIdType {
|
|
return `${senderKeyId.toString()}--${distributionId}`;
|
|
}
|
|
|
|
async saveSenderKey(
|
|
qualifiedAddress: QualifiedAddress,
|
|
distributionId: string,
|
|
record: SenderKeyRecord,
|
|
{ zone = GLOBAL_ZONE }: SessionTransactionOptions = {}
|
|
): Promise<void> {
|
|
await this.withZone(zone, 'saveSenderKey', async () => {
|
|
if (!this.senderKeys) {
|
|
throw new Error('saveSenderKey: this.senderKeys not yet cached!');
|
|
}
|
|
|
|
const senderId = qualifiedAddress.toString();
|
|
|
|
try {
|
|
const id = this.getSenderKeyId(qualifiedAddress, distributionId);
|
|
|
|
const fromDB: SenderKeyType = {
|
|
id,
|
|
senderId,
|
|
distributionId,
|
|
data: record.serialize(),
|
|
lastUpdatedDate: Date.now(),
|
|
};
|
|
|
|
this.pendingSenderKeys.set(id, {
|
|
hydrated: true,
|
|
fromDB,
|
|
item: record,
|
|
});
|
|
|
|
// Current zone doesn't support pending sessions - commit immediately
|
|
if (!zone.supportsPendingSenderKeys()) {
|
|
await this.commitZoneChanges('saveSenderKey');
|
|
}
|
|
} catch (error) {
|
|
const errorString = error && error.stack ? error.stack : error;
|
|
log.error(
|
|
`saveSenderKey: failed to save senderKey ${senderId}/${distributionId}: ${errorString}`
|
|
);
|
|
}
|
|
});
|
|
}
|
|
|
|
async getSenderKey(
|
|
qualifiedAddress: QualifiedAddress,
|
|
distributionId: string,
|
|
{ zone = GLOBAL_ZONE }: SessionTransactionOptions = {}
|
|
): Promise<SenderKeyRecord | undefined> {
|
|
return this.withZone(zone, 'getSenderKey', async () => {
|
|
if (!this.senderKeys) {
|
|
throw new Error('getSenderKey: this.senderKeys not yet cached!');
|
|
}
|
|
|
|
const senderId = qualifiedAddress.toString();
|
|
|
|
try {
|
|
const id = this.getSenderKeyId(qualifiedAddress, distributionId);
|
|
|
|
const map = this.pendingSenderKeys.has(id)
|
|
? this.pendingSenderKeys
|
|
: this.senderKeys;
|
|
const entry = map.get(id);
|
|
|
|
if (!entry) {
|
|
log.error('Failed to fetch sender key:', id);
|
|
return undefined;
|
|
}
|
|
|
|
if (entry.hydrated) {
|
|
log.info('Successfully fetched sender key (cache hit):', id);
|
|
return entry.item;
|
|
}
|
|
|
|
const item = SenderKeyRecord.deserialize(
|
|
Buffer.from(entry.fromDB.data)
|
|
);
|
|
this.senderKeys.set(id, {
|
|
hydrated: true,
|
|
item,
|
|
fromDB: entry.fromDB,
|
|
});
|
|
log.info('Successfully fetched sender key(cache miss):', id);
|
|
return item;
|
|
} catch (error) {
|
|
const errorString = error && error.stack ? error.stack : error;
|
|
log.error(
|
|
`getSenderKey: failed to load sender key ${senderId}/${distributionId}: ${errorString}`
|
|
);
|
|
return undefined;
|
|
}
|
|
});
|
|
}
|
|
|
|
async removeSenderKey(
|
|
qualifiedAddress: QualifiedAddress,
|
|
distributionId: string
|
|
): Promise<void> {
|
|
if (!this.senderKeys) {
|
|
throw new Error('getSenderKey: this.senderKeys not yet cached!');
|
|
}
|
|
|
|
const senderId = qualifiedAddress.toString();
|
|
|
|
try {
|
|
const id = this.getSenderKeyId(qualifiedAddress, distributionId);
|
|
|
|
await window.Signal.Data.removeSenderKeyById(id);
|
|
|
|
this.senderKeys.delete(id);
|
|
} catch (error) {
|
|
const errorString = error && error.stack ? error.stack : error;
|
|
log.error(
|
|
`removeSenderKey: failed to remove senderKey ${senderId}/${distributionId}: ${errorString}`
|
|
);
|
|
}
|
|
}
|
|
|
|
async removeAllSenderKeys(): Promise<void> {
|
|
return this.withZone(GLOBAL_ZONE, 'removeAllSenderKeys', async () => {
|
|
if (this.senderKeys) {
|
|
this.senderKeys.clear();
|
|
}
|
|
if (this.pendingSenderKeys) {
|
|
this.pendingSenderKeys.clear();
|
|
}
|
|
await window.Signal.Data.removeAllSenderKeys();
|
|
});
|
|
}
|
|
|
|
// Session Queue
|
|
|
|
async enqueueSessionJob<T>(
|
|
qualifiedAddress: QualifiedAddress,
|
|
task: () => Promise<T>,
|
|
zone: Zone = GLOBAL_ZONE
|
|
): Promise<T> {
|
|
return this.withZone(zone, 'enqueueSessionJob', async () => {
|
|
const queue = this._getSessionQueue(qualifiedAddress);
|
|
|
|
return queue.add<T>(task);
|
|
});
|
|
}
|
|
|
|
private _createSessionQueue(): PQueue {
|
|
return new PQueue({
|
|
concurrency: 1,
|
|
timeout: 1000 * 60 * 2,
|
|
throwOnTimeout: true,
|
|
});
|
|
}
|
|
|
|
private _getSessionQueue(id: QualifiedAddress): PQueue {
|
|
const cachedQueue = this.sessionQueues.get(id.toString());
|
|
if (cachedQueue) {
|
|
return cachedQueue;
|
|
}
|
|
|
|
const freshQueue = this._createSessionQueue();
|
|
this.sessionQueues.set(id.toString(), freshQueue);
|
|
return freshQueue;
|
|
}
|
|
|
|
// Sessions
|
|
|
|
// Re-entrant session transaction routine. Only one session transaction could
|
|
// be running at the same time.
|
|
//
|
|
// While in transaction:
|
|
//
|
|
// - `storeSession()` adds the updated session to the `pendingSessions`
|
|
// - `loadSession()` looks up the session first in `pendingSessions` and only
|
|
// then in the main `sessions` store
|
|
//
|
|
// When transaction ends:
|
|
//
|
|
// - successfully: pending session stores are batched into the database
|
|
// - with an error: pending session stores are reverted
|
|
|
|
public async withZone<T>(
|
|
zone: Zone,
|
|
name: string,
|
|
body: () => Promise<T>
|
|
): Promise<T> {
|
|
const debugName = `withZone(${zone.name}:${name})`;
|
|
|
|
// Allow re-entering from LibSignalStores
|
|
if (this.currentZone && this.currentZone !== zone) {
|
|
const start = Date.now();
|
|
|
|
log.info(`${debugName}: locked by ${this.currentZone.name}, waiting`);
|
|
|
|
return new Promise<T>((resolve, reject) => {
|
|
const callback = async () => {
|
|
const duration = Date.now() - start;
|
|
log.info(`${debugName}: unlocked after ${duration}ms`);
|
|
|
|
// Call `.withZone` synchronously from `this.zoneQueue` to avoid
|
|
// extra in-between ticks while we are on microtasks queue.
|
|
try {
|
|
resolve(await this.withZone(zone, name, body));
|
|
} catch (error) {
|
|
reject(error);
|
|
}
|
|
};
|
|
|
|
this.zoneQueue.push({ zone, callback });
|
|
});
|
|
}
|
|
|
|
this.enterZone(zone, name);
|
|
|
|
let result: T;
|
|
try {
|
|
result = await body();
|
|
} catch (error) {
|
|
if (this.isInTopLevelZone()) {
|
|
await this.revertZoneChanges(name, error);
|
|
}
|
|
this.leaveZone(zone);
|
|
throw error;
|
|
}
|
|
|
|
if (this.isInTopLevelZone()) {
|
|
await this.commitZoneChanges(name);
|
|
}
|
|
this.leaveZone(zone);
|
|
|
|
return result;
|
|
}
|
|
|
|
private async commitZoneChanges(name: string): Promise<void> {
|
|
const { pendingSenderKeys, pendingSessions, pendingUnprocessed } = this;
|
|
|
|
if (
|
|
pendingSenderKeys.size === 0 &&
|
|
pendingSessions.size === 0 &&
|
|
pendingUnprocessed.size === 0
|
|
) {
|
|
return;
|
|
}
|
|
|
|
log.info(
|
|
`commitZoneChanges(${name}): ` +
|
|
`pending sender keys ${pendingSenderKeys.size}, ` +
|
|
`pending sessions ${pendingSessions.size}, ` +
|
|
`pending unprocessed ${pendingUnprocessed.size}`
|
|
);
|
|
|
|
this.pendingSenderKeys = new Map();
|
|
this.pendingSessions = new Map();
|
|
this.pendingUnprocessed = new Map();
|
|
|
|
// Commit both sender keys, sessions and unprocessed in the same database transaction
|
|
// to unroll both on error.
|
|
await window.Signal.Data.commitDecryptResult({
|
|
senderKeys: Array.from(pendingSenderKeys.values()).map(
|
|
({ fromDB }) => fromDB
|
|
),
|
|
sessions: Array.from(pendingSessions.values()).map(
|
|
({ fromDB }) => fromDB
|
|
),
|
|
unprocessed: Array.from(pendingUnprocessed.values()),
|
|
});
|
|
|
|
// Apply changes to in-memory storage after successful DB write.
|
|
|
|
const { sessions } = this;
|
|
assert(sessions !== undefined, "Can't commit unhydrated session storage");
|
|
pendingSessions.forEach((value, key) => {
|
|
sessions.set(key, value);
|
|
});
|
|
|
|
const { senderKeys } = this;
|
|
assert(
|
|
senderKeys !== undefined,
|
|
"Can't commit unhydrated sender key storage"
|
|
);
|
|
pendingSenderKeys.forEach((value, key) => {
|
|
senderKeys.set(key, value);
|
|
});
|
|
}
|
|
|
|
private async revertZoneChanges(name: string, error: Error): Promise<void> {
|
|
log.info(
|
|
`revertZoneChanges(${name}): ` +
|
|
`pending sender keys size ${this.pendingSenderKeys.size}, ` +
|
|
`pending sessions size ${this.pendingSessions.size}, ` +
|
|
`pending unprocessed size ${this.pendingUnprocessed.size}`,
|
|
error && error.stack
|
|
);
|
|
this.pendingSenderKeys.clear();
|
|
this.pendingSessions.clear();
|
|
this.pendingUnprocessed.clear();
|
|
}
|
|
|
|
private isInTopLevelZone(): boolean {
|
|
return this.currentZoneDepth === 1;
|
|
}
|
|
|
|
private enterZone(zone: Zone, name: string): void {
|
|
this.currentZoneDepth += 1;
|
|
if (this.currentZoneDepth === 1) {
|
|
assert(this.currentZone === undefined, 'Should not be in the zone');
|
|
this.currentZone = zone;
|
|
|
|
if (zone !== GLOBAL_ZONE) {
|
|
log.info(`SignalProtocolStore.enterZone(${zone.name}:${name})`);
|
|
}
|
|
}
|
|
}
|
|
|
|
private leaveZone(zone: Zone): void {
|
|
assert(this.currentZone === zone, 'Should be in the correct zone');
|
|
|
|
this.currentZoneDepth -= 1;
|
|
assert(this.currentZoneDepth >= 0, 'Unmatched number of leaveZone calls');
|
|
|
|
// Since we allow re-entering zones we might actually be in two overlapping
|
|
// async calls. Leave the zone and yield to another one only if there are
|
|
// no active zone users anymore.
|
|
if (this.currentZoneDepth !== 0) {
|
|
return;
|
|
}
|
|
|
|
if (zone !== GLOBAL_ZONE) {
|
|
log.info(`SignalProtocolStore.leaveZone(${zone.name})`);
|
|
}
|
|
|
|
this.currentZone = undefined;
|
|
|
|
const next = this.zoneQueue.shift();
|
|
if (!next) {
|
|
return;
|
|
}
|
|
|
|
const toEnter = [next];
|
|
|
|
while (this.zoneQueue[0]?.zone === next.zone) {
|
|
const elem = this.zoneQueue.shift();
|
|
assert(elem, 'Zone element should be present');
|
|
|
|
toEnter.push(elem);
|
|
}
|
|
|
|
log.info(
|
|
`SignalProtocolStore: running blocked ${toEnter.length} jobs in ` +
|
|
`zone ${next.zone.name}`
|
|
);
|
|
for (const { callback } of toEnter) {
|
|
callback();
|
|
}
|
|
}
|
|
|
|
async loadSession(
|
|
qualifiedAddress: QualifiedAddress,
|
|
{ zone = GLOBAL_ZONE }: SessionTransactionOptions = {}
|
|
): Promise<SessionRecord | undefined> {
|
|
return this.withZone(zone, 'loadSession', async () => {
|
|
if (!this.sessions) {
|
|
throw new Error('loadSession: this.sessions not yet cached!');
|
|
}
|
|
|
|
if (qualifiedAddress === null || qualifiedAddress === undefined) {
|
|
throw new Error('loadSession: qualifiedAddress was undefined/null');
|
|
}
|
|
|
|
const id = qualifiedAddress.toString();
|
|
|
|
try {
|
|
const map = this.pendingSessions.has(id)
|
|
? this.pendingSessions
|
|
: this.sessions;
|
|
const entry = map.get(id);
|
|
|
|
if (!entry) {
|
|
return undefined;
|
|
}
|
|
|
|
if (entry.hydrated) {
|
|
return entry.item;
|
|
}
|
|
|
|
// We'll either just hydrate the item or we'll fully migrate the session
|
|
// and save it to the database.
|
|
return await this._maybeMigrateSession(entry.fromDB, { zone });
|
|
} catch (error) {
|
|
const errorString = error && error.stack ? error.stack : error;
|
|
log.error(`loadSession: failed to load session ${id}: ${errorString}`);
|
|
return undefined;
|
|
}
|
|
});
|
|
}
|
|
|
|
async loadSessions(
|
|
qualifiedAddresses: Array<QualifiedAddress>,
|
|
{ zone = GLOBAL_ZONE }: SessionTransactionOptions = {}
|
|
): Promise<Array<SessionRecord>> {
|
|
return this.withZone(zone, 'loadSessions', async () => {
|
|
const sessions = await Promise.all(
|
|
qualifiedAddresses.map(async address =>
|
|
this.loadSession(address, { zone })
|
|
)
|
|
);
|
|
|
|
return sessions.filter(isNotNil);
|
|
});
|
|
}
|
|
|
|
private async _maybeMigrateSession(
|
|
session: SessionType,
|
|
{ zone = GLOBAL_ZONE }: SessionTransactionOptions = {}
|
|
): Promise<SessionRecord> {
|
|
if (!this.sessions) {
|
|
throw new Error('_maybeMigrateSession: this.sessions not yet cached!');
|
|
}
|
|
|
|
// Already migrated, hydrate and update cache
|
|
if (session.version === 2) {
|
|
const item = hydrateSession(session);
|
|
|
|
const map = this.pendingSessions.has(session.id)
|
|
? this.pendingSessions
|
|
: this.sessions;
|
|
map.set(session.id, {
|
|
hydrated: true,
|
|
item,
|
|
fromDB: session,
|
|
});
|
|
|
|
return item;
|
|
}
|
|
|
|
// Not yet converted, need to translate to new format and save
|
|
if (session.version !== undefined) {
|
|
throw new Error('_maybeMigrateSession: Unknown session version type!');
|
|
}
|
|
|
|
const ourUuid = new UUID(session.ourUuid);
|
|
|
|
const keyPair = await this.getIdentityKeyPair(ourUuid);
|
|
if (!keyPair) {
|
|
throw new Error('_maybeMigrateSession: No identity key for ourself!');
|
|
}
|
|
|
|
const localRegistrationId = await this.getLocalRegistrationId(ourUuid);
|
|
if (!isNumber(localRegistrationId)) {
|
|
throw new Error('_maybeMigrateSession: No registration id for ourself!');
|
|
}
|
|
|
|
const localUserData = {
|
|
identityKeyPublic: keyPair.pubKey,
|
|
registrationId: localRegistrationId,
|
|
};
|
|
|
|
log.info(`_maybeMigrateSession: Migrating session with id ${session.id}`);
|
|
const sessionProto = sessionRecordToProtobuf(
|
|
JSON.parse(session.record),
|
|
localUserData
|
|
);
|
|
const record = SessionRecord.deserialize(
|
|
Buffer.from(sessionStructureToBytes(sessionProto))
|
|
);
|
|
|
|
await this.storeSession(QualifiedAddress.parse(session.id), record, {
|
|
zone,
|
|
});
|
|
|
|
return record;
|
|
}
|
|
|
|
async storeSession(
|
|
qualifiedAddress: QualifiedAddress,
|
|
record: SessionRecord,
|
|
{ zone = GLOBAL_ZONE }: SessionTransactionOptions = {}
|
|
): Promise<void> {
|
|
await this.withZone(zone, 'storeSession', async () => {
|
|
if (!this.sessions) {
|
|
throw new Error('storeSession: this.sessions not yet cached!');
|
|
}
|
|
|
|
if (qualifiedAddress === null || qualifiedAddress === undefined) {
|
|
throw new Error('storeSession: qualifiedAddress was undefined/null');
|
|
}
|
|
const { uuid, deviceId } = qualifiedAddress;
|
|
|
|
const conversationId = window.ConversationController.ensureContactIds({
|
|
uuid: uuid.toString(),
|
|
});
|
|
strictAssert(
|
|
conversationId !== undefined,
|
|
'storeSession: Ensure contact ids failed'
|
|
);
|
|
const id = qualifiedAddress.toString();
|
|
|
|
try {
|
|
const fromDB = {
|
|
id,
|
|
version: 2,
|
|
ourUuid: qualifiedAddress.ourUuid.toString(),
|
|
conversationId,
|
|
uuid: uuid.toString(),
|
|
deviceId,
|
|
record: record.serialize().toString('base64'),
|
|
};
|
|
|
|
const newSession = {
|
|
hydrated: true,
|
|
fromDB,
|
|
item: record,
|
|
};
|
|
|
|
assert(this.currentZone, 'Must run in the zone');
|
|
|
|
this.pendingSessions.set(id, newSession);
|
|
|
|
// Current zone doesn't support pending sessions - commit immediately
|
|
if (!zone.supportsPendingSessions()) {
|
|
await this.commitZoneChanges('storeSession');
|
|
}
|
|
} catch (error) {
|
|
const errorString = error && error.stack ? error.stack : error;
|
|
log.error(`storeSession: Save failed for ${id}: ${errorString}`);
|
|
throw error;
|
|
}
|
|
});
|
|
}
|
|
|
|
async getOpenDevices(
|
|
ourUuid: UUID,
|
|
identifiers: Array<string>,
|
|
{ zone = GLOBAL_ZONE }: SessionTransactionOptions = {}
|
|
): Promise<{
|
|
devices: Array<DeviceType>;
|
|
emptyIdentifiers: Array<string>;
|
|
}> {
|
|
return this.withZone(zone, 'getOpenDevices', async () => {
|
|
if (!this.sessions) {
|
|
throw new Error('getOpenDevices: this.sessions not yet cached!');
|
|
}
|
|
if (identifiers.length === 0) {
|
|
return { devices: [], emptyIdentifiers: [] };
|
|
}
|
|
|
|
try {
|
|
const uuidsOrIdentifiers = new Set(
|
|
identifiers.map(
|
|
identifier => UUID.lookup(identifier)?.toString() || identifier
|
|
)
|
|
);
|
|
|
|
const allSessions = this._getAllSessions();
|
|
const entries = allSessions.filter(
|
|
({ fromDB }) =>
|
|
fromDB.ourUuid === ourUuid.toString() &&
|
|
uuidsOrIdentifiers.has(fromDB.uuid)
|
|
);
|
|
const openEntries: Array<
|
|
| undefined
|
|
| {
|
|
entry: SessionCacheEntry;
|
|
record: SessionRecord;
|
|
}
|
|
> = await Promise.all(
|
|
entries.map(async entry => {
|
|
if (entry.hydrated) {
|
|
const record = entry.item;
|
|
if (record.hasCurrentState()) {
|
|
return { record, entry };
|
|
}
|
|
|
|
return undefined;
|
|
}
|
|
|
|
const record = await this._maybeMigrateSession(entry.fromDB, {
|
|
zone,
|
|
});
|
|
if (record.hasCurrentState()) {
|
|
return { record, entry };
|
|
}
|
|
|
|
return undefined;
|
|
})
|
|
);
|
|
|
|
const devices = openEntries
|
|
.map(item => {
|
|
if (!item) {
|
|
return undefined;
|
|
}
|
|
const { entry, record } = item;
|
|
|
|
const { uuid } = entry.fromDB;
|
|
uuidsOrIdentifiers.delete(uuid);
|
|
|
|
const id = entry.fromDB.deviceId;
|
|
|
|
const registrationId = record.remoteRegistrationId();
|
|
|
|
return {
|
|
identifier: uuid,
|
|
id,
|
|
registrationId,
|
|
};
|
|
})
|
|
.filter(isNotNil);
|
|
const emptyIdentifiers = Array.from(uuidsOrIdentifiers.values());
|
|
|
|
return {
|
|
devices,
|
|
emptyIdentifiers,
|
|
};
|
|
} catch (error) {
|
|
log.error(
|
|
'getOpenDevices: Failed to get devices',
|
|
error && error.stack ? error.stack : error
|
|
);
|
|
throw error;
|
|
}
|
|
});
|
|
}
|
|
|
|
async getDeviceIds({
|
|
ourUuid,
|
|
identifier,
|
|
}: Readonly<{
|
|
ourUuid: UUID;
|
|
identifier: string;
|
|
}>): Promise<Array<number>> {
|
|
const { devices } = await this.getOpenDevices(ourUuid, [identifier]);
|
|
return devices.map((device: DeviceType) => device.id);
|
|
}
|
|
|
|
async removeSession(qualifiedAddress: QualifiedAddress): Promise<void> {
|
|
return this.withZone(GLOBAL_ZONE, 'removeSession', async () => {
|
|
if (!this.sessions) {
|
|
throw new Error('removeSession: this.sessions not yet cached!');
|
|
}
|
|
|
|
const id = qualifiedAddress.toString();
|
|
log.info('removeSession: deleting session for', id);
|
|
try {
|
|
await window.Signal.Data.removeSessionById(id);
|
|
this.sessions.delete(id);
|
|
this.pendingSessions.delete(id);
|
|
} catch (e) {
|
|
log.error(`removeSession: Failed to delete session for ${id}`);
|
|
}
|
|
});
|
|
}
|
|
|
|
async removeAllSessions(identifier: string): Promise<void> {
|
|
return this.withZone(GLOBAL_ZONE, 'removeAllSessions', async () => {
|
|
if (!this.sessions) {
|
|
throw new Error('removeAllSessions: this.sessions not yet cached!');
|
|
}
|
|
|
|
if (identifier === null || identifier === undefined) {
|
|
throw new Error('removeAllSessions: identifier was undefined/null');
|
|
}
|
|
|
|
log.info('removeAllSessions: deleting sessions for', identifier);
|
|
|
|
const id = window.ConversationController.getConversationId(identifier);
|
|
strictAssert(
|
|
id,
|
|
`removeAllSessions: Conversation not found: ${identifier}`
|
|
);
|
|
|
|
const entries = Array.from(this.sessions.values());
|
|
|
|
for (let i = 0, max = entries.length; i < max; i += 1) {
|
|
const entry = entries[i];
|
|
if (entry.fromDB.conversationId === id) {
|
|
this.sessions.delete(entry.fromDB.id);
|
|
this.pendingSessions.delete(entry.fromDB.id);
|
|
}
|
|
}
|
|
|
|
await window.Signal.Data.removeSessionsByConversation(id);
|
|
});
|
|
}
|
|
|
|
private async _archiveSession(entry?: SessionCacheEntry, zone?: Zone) {
|
|
if (!entry) {
|
|
return;
|
|
}
|
|
|
|
const addr = QualifiedAddress.parse(entry.fromDB.id);
|
|
|
|
await this.enqueueSessionJob(
|
|
addr,
|
|
async () => {
|
|
const item = entry.hydrated
|
|
? entry.item
|
|
: await this._maybeMigrateSession(entry.fromDB, { zone });
|
|
|
|
if (!item.hasCurrentState()) {
|
|
return;
|
|
}
|
|
|
|
item.archiveCurrentState();
|
|
|
|
await this.storeSession(addr, item, { zone });
|
|
},
|
|
zone
|
|
);
|
|
}
|
|
|
|
async archiveSession(qualifiedAddress: QualifiedAddress): Promise<void> {
|
|
return this.withZone(GLOBAL_ZONE, 'archiveSession', async () => {
|
|
if (!this.sessions) {
|
|
throw new Error('archiveSession: this.sessions not yet cached!');
|
|
}
|
|
|
|
const id = qualifiedAddress.toString();
|
|
|
|
log.info(`archiveSession: session for ${id}`);
|
|
|
|
const entry = this.pendingSessions.get(id) || this.sessions.get(id);
|
|
|
|
await this._archiveSession(entry);
|
|
});
|
|
}
|
|
|
|
async archiveSiblingSessions(
|
|
encodedAddress: Address,
|
|
{ zone = GLOBAL_ZONE }: SessionTransactionOptions = {}
|
|
): Promise<void> {
|
|
return this.withZone(zone, 'archiveSiblingSessions', async () => {
|
|
if (!this.sessions) {
|
|
throw new Error(
|
|
'archiveSiblingSessions: this.sessions not yet cached!'
|
|
);
|
|
}
|
|
|
|
log.info(
|
|
'archiveSiblingSessions: archiving sibling sessions for',
|
|
encodedAddress.toString()
|
|
);
|
|
|
|
const { uuid, deviceId } = encodedAddress;
|
|
|
|
const allEntries = this._getAllSessions();
|
|
const entries = allEntries.filter(
|
|
entry =>
|
|
entry.fromDB.uuid === uuid.toString() &&
|
|
entry.fromDB.deviceId !== deviceId
|
|
);
|
|
|
|
await Promise.all(
|
|
entries.map(async entry => {
|
|
await this._archiveSession(entry, zone);
|
|
})
|
|
);
|
|
});
|
|
}
|
|
|
|
async archiveAllSessions(uuid: UUID): Promise<void> {
|
|
return this.withZone(GLOBAL_ZONE, 'archiveAllSessions', async () => {
|
|
if (!this.sessions) {
|
|
throw new Error('archiveAllSessions: this.sessions not yet cached!');
|
|
}
|
|
|
|
log.info(
|
|
'archiveAllSessions: archiving all sessions for',
|
|
uuid.toString()
|
|
);
|
|
|
|
const allEntries = this._getAllSessions();
|
|
const entries = allEntries.filter(
|
|
entry => entry.fromDB.uuid === uuid.toString()
|
|
);
|
|
|
|
await Promise.all(
|
|
entries.map(async entry => {
|
|
await this._archiveSession(entry);
|
|
})
|
|
);
|
|
});
|
|
}
|
|
|
|
async clearSessionStore(): Promise<void> {
|
|
return this.withZone(GLOBAL_ZONE, 'clearSessionStore', async () => {
|
|
if (this.sessions) {
|
|
this.sessions.clear();
|
|
}
|
|
this.pendingSessions.clear();
|
|
await window.Signal.Data.removeAllSessions();
|
|
});
|
|
}
|
|
|
|
async lightSessionReset(qualifiedAddress: QualifiedAddress): Promise<void> {
|
|
const id = qualifiedAddress.toString();
|
|
|
|
const sessionResets = window.storage.get(
|
|
'sessionResets',
|
|
<SessionResetsType>{}
|
|
);
|
|
|
|
const lastReset = sessionResets[id];
|
|
|
|
const ONE_HOUR = 60 * 60 * 1000;
|
|
if (lastReset && isMoreRecentThan(lastReset, ONE_HOUR)) {
|
|
log.warn(
|
|
`lightSessionReset/${id}: Skipping session reset, last reset at ${lastReset}`
|
|
);
|
|
return;
|
|
}
|
|
|
|
sessionResets[id] = Date.now();
|
|
window.storage.put('sessionResets', sessionResets);
|
|
|
|
try {
|
|
const { uuid } = qualifiedAddress;
|
|
|
|
// First, fetch this conversation
|
|
const conversationId = window.ConversationController.ensureContactIds({
|
|
uuid: uuid.toString(),
|
|
});
|
|
assert(conversationId, `lightSessionReset/${id}: missing conversationId`);
|
|
|
|
const conversation = window.ConversationController.get(conversationId);
|
|
assert(conversation, `lightSessionReset/${id}: missing conversation`);
|
|
|
|
log.warn(`lightSessionReset/${id}: Resetting session`);
|
|
|
|
// Archive open session with this device
|
|
await this.archiveSession(qualifiedAddress);
|
|
|
|
// Enqueue a null message with newly-created session
|
|
await singleProtoJobQueue.add(
|
|
MessageSender.getNullMessage({
|
|
uuid: uuid.toString(),
|
|
})
|
|
);
|
|
} catch (error) {
|
|
// If we failed to do the session reset, then we'll allow another attempt sooner
|
|
// than one hour from now.
|
|
delete sessionResets[id];
|
|
window.storage.put('sessionResets', sessionResets);
|
|
|
|
log.error(
|
|
`lightSessionReset/${id}: Encountered error`,
|
|
Errors.toLogFormat(error)
|
|
);
|
|
}
|
|
}
|
|
|
|
// Identity Keys
|
|
|
|
getIdentityRecord(uuid: UUID): IdentityKeyType | undefined {
|
|
if (!this.identityKeys) {
|
|
throw new Error('getIdentityRecord: this.identityKeys not yet cached!');
|
|
}
|
|
|
|
const id = uuid.toString();
|
|
|
|
try {
|
|
const entry = this.identityKeys.get(id);
|
|
if (!entry) {
|
|
return undefined;
|
|
}
|
|
|
|
return entry.fromDB;
|
|
} catch (e) {
|
|
log.error(
|
|
`getIdentityRecord: Failed to get identity record for identifier ${id}`
|
|
);
|
|
return undefined;
|
|
}
|
|
}
|
|
|
|
async getOrMigrateIdentityRecord(
|
|
uuid: UUID
|
|
): Promise<IdentityKeyType | undefined> {
|
|
if (!this.identityKeys) {
|
|
throw new Error(
|
|
'getOrMigrateIdentityRecord: this.identityKeys not yet cached!'
|
|
);
|
|
}
|
|
|
|
const result = this.getIdentityRecord(uuid);
|
|
if (result) {
|
|
return result;
|
|
}
|
|
|
|
const newId = uuid.toString();
|
|
const conversation = window.ConversationController.get(newId);
|
|
if (!conversation) {
|
|
return undefined;
|
|
}
|
|
|
|
const conversationId = conversation.id;
|
|
const record = this.identityKeys.get(`conversation:${conversationId}`);
|
|
if (!record) {
|
|
return undefined;
|
|
}
|
|
|
|
const newRecord = {
|
|
...record.fromDB,
|
|
id: newId,
|
|
};
|
|
|
|
log.info(
|
|
`SignalProtocolStore: migrating identity key from ${record.fromDB.id} ` +
|
|
`to ${newRecord.id}`
|
|
);
|
|
|
|
await this._saveIdentityKey(newRecord);
|
|
|
|
this.identityKeys.delete(record.fromDB.id);
|
|
await window.Signal.Data.removeIdentityKeyById(record.fromDB.id);
|
|
|
|
return newRecord;
|
|
}
|
|
|
|
async isTrustedIdentity(
|
|
encodedAddress: Address,
|
|
publicKey: Uint8Array,
|
|
direction: number
|
|
): Promise<boolean> {
|
|
if (!this.identityKeys) {
|
|
throw new Error('isTrustedIdentity: this.identityKeys not yet cached!');
|
|
}
|
|
|
|
if (encodedAddress === null || encodedAddress === undefined) {
|
|
throw new Error('isTrustedIdentity: encodedAddress was undefined/null');
|
|
}
|
|
const ourUuid = window.textsecure.storage.user.getCheckedUuid();
|
|
const isOurIdentifier = encodedAddress.uuid.isEqual(ourUuid);
|
|
|
|
const identityRecord = await this.getOrMigrateIdentityRecord(
|
|
encodedAddress.uuid
|
|
);
|
|
|
|
if (isOurIdentifier) {
|
|
if (identityRecord && identityRecord.publicKey) {
|
|
return constantTimeEqual(identityRecord.publicKey, publicKey);
|
|
}
|
|
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(`isTrustedIdentity: Unknown direction: ${direction}`);
|
|
}
|
|
}
|
|
|
|
isTrustedForSending(
|
|
publicKey: Uint8Array,
|
|
identityRecord?: IdentityKeyType
|
|
): boolean {
|
|
if (!identityRecord) {
|
|
log.info('isTrustedForSending: No previous record, returning true...');
|
|
return true;
|
|
}
|
|
|
|
const existing = identityRecord.publicKey;
|
|
|
|
if (!existing) {
|
|
log.info('isTrustedForSending: Nothing here, returning true...');
|
|
return true;
|
|
}
|
|
if (!constantTimeEqual(existing, publicKey)) {
|
|
log.info("isTrustedForSending: Identity keys don't match...");
|
|
return false;
|
|
}
|
|
if (identityRecord.verified === VerifiedStatus.UNVERIFIED) {
|
|
log.error('isTrustedIdentity: Needs unverified approval!');
|
|
return false;
|
|
}
|
|
if (this.isNonBlockingApprovalRequired(identityRecord)) {
|
|
log.error('isTrustedForSending: Needs non-blocking approval!');
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
async loadIdentityKey(uuid: UUID): Promise<Uint8Array | undefined> {
|
|
if (uuid === null || uuid === undefined) {
|
|
throw new Error('loadIdentityKey: uuid was undefined/null');
|
|
}
|
|
const identityRecord = await this.getOrMigrateIdentityRecord(uuid);
|
|
|
|
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;
|
|
|
|
await window.Signal.Data.createOrUpdateIdentityKey(data);
|
|
this.identityKeys.set(id, {
|
|
hydrated: false,
|
|
fromDB: data,
|
|
});
|
|
}
|
|
|
|
async saveIdentity(
|
|
encodedAddress: Address,
|
|
publicKey: Uint8Array,
|
|
nonblockingApproval = false,
|
|
{ zone }: SessionTransactionOptions = {}
|
|
): Promise<boolean> {
|
|
if (!this.identityKeys) {
|
|
throw new Error('saveIdentity: this.identityKeys not yet cached!');
|
|
}
|
|
|
|
if (encodedAddress === null || encodedAddress === undefined) {
|
|
throw new Error('saveIdentity: encodedAddress was undefined/null');
|
|
}
|
|
if (!(publicKey instanceof Uint8Array)) {
|
|
// eslint-disable-next-line no-param-reassign
|
|
publicKey = Bytes.fromBinary(publicKey);
|
|
}
|
|
if (typeof nonblockingApproval !== 'boolean') {
|
|
// eslint-disable-next-line no-param-reassign
|
|
nonblockingApproval = false;
|
|
}
|
|
|
|
const identityRecord = await this.getOrMigrateIdentityRecord(
|
|
encodedAddress.uuid
|
|
);
|
|
|
|
const id = encodedAddress.uuid.toString();
|
|
|
|
if (!identityRecord || !identityRecord.publicKey) {
|
|
// Lookup failed, or the current key was removed, so save this one.
|
|
log.info('saveIdentity: 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)) {
|
|
log.info('saveIdentity: 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', encodedAddress.uuid);
|
|
} catch (error) {
|
|
log.error(
|
|
'saveIdentity: error triggering keychange:',
|
|
error && error.stack ? error.stack : error
|
|
);
|
|
}
|
|
|
|
// Pass the zone to facilitate transactional session use in
|
|
// MessageReceiver.ts
|
|
await this.archiveSiblingSessions(encodedAddress, {
|
|
zone,
|
|
});
|
|
|
|
return true;
|
|
}
|
|
if (this.isNonBlockingApprovalRequired(identityRecord)) {
|
|
log.info('saveIdentity: Setting approval status...');
|
|
|
|
identityRecord.nonblockingApproval = nonblockingApproval;
|
|
await this._saveIdentityKey(identityRecord);
|
|
|
|
return false;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
isNonBlockingApprovalRequired(identityRecord: IdentityKeyType): boolean {
|
|
return (
|
|
!identityRecord.firstUse &&
|
|
isMoreRecentThan(identityRecord.timestamp, TIMESTAMP_THRESHOLD) &&
|
|
!identityRecord.nonblockingApproval
|
|
);
|
|
}
|
|
|
|
async saveIdentityWithAttributes(
|
|
uuid: UUID,
|
|
attributes: Partial<IdentityKeyType>
|
|
): Promise<void> {
|
|
if (uuid === null || uuid === undefined) {
|
|
throw new Error('saveIdentityWithAttributes: uuid was undefined/null');
|
|
}
|
|
|
|
const identityRecord = await this.getOrMigrateIdentityRecord(uuid);
|
|
const id = uuid.toString();
|
|
|
|
// When saving a PNI identity - don't create a separate conversation
|
|
const uuidKind = window.textsecure.storage.user.getOurUuidKind(uuid);
|
|
if (uuidKind !== UUIDKind.PNI) {
|
|
window.ConversationController.getOrCreate(id, 'private');
|
|
}
|
|
|
|
const updates: Partial<IdentityKeyType> = {
|
|
...identityRecord,
|
|
...attributes,
|
|
id,
|
|
};
|
|
|
|
if (validateIdentityKey(updates)) {
|
|
await this._saveIdentityKey(updates);
|
|
}
|
|
}
|
|
|
|
async setApproval(uuid: UUID, nonblockingApproval: boolean): Promise<void> {
|
|
if (uuid === null || uuid === undefined) {
|
|
throw new Error('setApproval: uuid was undefined/null');
|
|
}
|
|
if (typeof nonblockingApproval !== 'boolean') {
|
|
throw new Error('setApproval: Invalid approval status');
|
|
}
|
|
|
|
const identityRecord = await this.getOrMigrateIdentityRecord(uuid);
|
|
|
|
if (!identityRecord) {
|
|
throw new Error(`setApproval: No identity record for ${uuid}`);
|
|
}
|
|
|
|
identityRecord.nonblockingApproval = nonblockingApproval;
|
|
await this._saveIdentityKey(identityRecord);
|
|
}
|
|
|
|
async setVerified(
|
|
uuid: UUID,
|
|
verifiedStatus: number,
|
|
publicKey?: Uint8Array
|
|
): Promise<void> {
|
|
if (uuid === null || uuid === undefined) {
|
|
throw new Error('setVerified: uuid was undefined/null');
|
|
}
|
|
if (!validateVerifiedStatus(verifiedStatus)) {
|
|
throw new Error('setVerified: Invalid verified status');
|
|
}
|
|
|
|
const identityRecord = await this.getOrMigrateIdentityRecord(uuid);
|
|
|
|
if (!identityRecord) {
|
|
throw new Error(`setVerified: No identity record for ${uuid.toString()}`);
|
|
}
|
|
|
|
if (!publicKey || constantTimeEqual(identityRecord.publicKey, publicKey)) {
|
|
identityRecord.verified = verifiedStatus;
|
|
|
|
if (validateIdentityKey(identityRecord)) {
|
|
await this._saveIdentityKey(identityRecord);
|
|
}
|
|
} else {
|
|
log.info('setVerified: No identity record for specified publicKey');
|
|
}
|
|
}
|
|
|
|
async getVerified(uuid: UUID): Promise<number> {
|
|
if (uuid === null || uuid === undefined) {
|
|
throw new Error('getVerified: uuid was undefined/null');
|
|
}
|
|
|
|
const identityRecord = await this.getOrMigrateIdentityRecord(uuid);
|
|
if (!identityRecord) {
|
|
throw new Error(`getVerified: No identity record for ${uuid}`);
|
|
}
|
|
|
|
const verifiedStatus = identityRecord.verified;
|
|
if (validateVerifiedStatus(verifiedStatus)) {
|
|
return verifiedStatus;
|
|
}
|
|
|
|
return VerifiedStatus.DEFAULT;
|
|
}
|
|
|
|
// See https://github.com/signalapp/Signal-iOS-Private/blob/e32c2dff0d03f67467b4df621d84b11412d50cdb/SignalServiceKit/src/Messages/OWSIdentityManager.m#L317
|
|
// for reference.
|
|
async processVerifiedMessage(
|
|
uuid: UUID,
|
|
verifiedStatus: number,
|
|
publicKey?: Uint8Array
|
|
): Promise<boolean> {
|
|
if (uuid === null || uuid === undefined) {
|
|
throw new Error('processVerifiedMessage: uuid was undefined/null');
|
|
}
|
|
if (!validateVerifiedStatus(verifiedStatus)) {
|
|
throw new Error('processVerifiedMessage: Invalid verified status');
|
|
}
|
|
if (publicKey !== undefined && !(publicKey instanceof Uint8Array)) {
|
|
throw new Error('processVerifiedMessage: Invalid public key');
|
|
}
|
|
|
|
const identityRecord = await this.getOrMigrateIdentityRecord(uuid);
|
|
|
|
let isEqual = false;
|
|
|
|
if (identityRecord && publicKey) {
|
|
isEqual = constantTimeEqual(publicKey, identityRecord.publicKey);
|
|
}
|
|
|
|
// Just update verified status if the key is the same or not present
|
|
if (isEqual || !publicKey) {
|
|
await this.setVerified(uuid, verifiedStatus, publicKey);
|
|
return false;
|
|
}
|
|
|
|
await this.saveIdentityWithAttributes(uuid, {
|
|
publicKey,
|
|
verified: verifiedStatus,
|
|
firstUse: false,
|
|
timestamp: Date.now(),
|
|
nonblockingApproval: verifiedStatus === VerifiedStatus.VERIFIED,
|
|
});
|
|
|
|
if (identityRecord) {
|
|
try {
|
|
this.trigger('keychange', uuid);
|
|
} catch (error) {
|
|
log.error(
|
|
'processVerifiedMessage error triggering keychange:',
|
|
Errors.toLogFormat(error)
|
|
);
|
|
}
|
|
|
|
// true signifies that we overwrote a previous key with a new one
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
isUntrusted(uuid: UUID): boolean {
|
|
if (uuid === null || uuid === undefined) {
|
|
throw new Error('isUntrusted: uuid was undefined/null');
|
|
}
|
|
|
|
const identityRecord = this.getIdentityRecord(uuid);
|
|
if (!identityRecord) {
|
|
throw new Error(`isUntrusted: No identity record for ${uuid.toString()}`);
|
|
}
|
|
|
|
if (
|
|
isMoreRecentThan(identityRecord.timestamp, TIMESTAMP_THRESHOLD) &&
|
|
!identityRecord.nonblockingApproval &&
|
|
!identityRecord.firstUse
|
|
) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
async removeIdentityKey(uuid: UUID): Promise<void> {
|
|
if (!this.identityKeys) {
|
|
throw new Error('removeIdentityKey: this.identityKeys not yet cached!');
|
|
}
|
|
|
|
const id = uuid.toString();
|
|
this.identityKeys.delete(id);
|
|
await window.Signal.Data.removeIdentityKeyById(id);
|
|
await this.removeAllSessions(id);
|
|
}
|
|
|
|
// Not yet processed messages - for resiliency
|
|
getUnprocessedCount(): Promise<number> {
|
|
return this.withZone(GLOBAL_ZONE, 'getUnprocessedCount', async () => {
|
|
return window.Signal.Data.getUnprocessedCount();
|
|
});
|
|
}
|
|
|
|
getAllUnprocessedAndIncrementAttempts(): Promise<Array<UnprocessedType>> {
|
|
return this.withZone(GLOBAL_ZONE, 'getAllUnprocessed', async () => {
|
|
return window.Signal.Data.getAllUnprocessedAndIncrementAttempts();
|
|
});
|
|
}
|
|
|
|
getUnprocessedById(id: string): Promise<UnprocessedType | undefined> {
|
|
return this.withZone(GLOBAL_ZONE, 'getUnprocessedById', async () => {
|
|
return window.Signal.Data.getUnprocessedById(id);
|
|
});
|
|
}
|
|
|
|
addUnprocessed(
|
|
data: UnprocessedType,
|
|
{ zone = GLOBAL_ZONE }: SessionTransactionOptions = {}
|
|
): Promise<void> {
|
|
return this.withZone(zone, 'addUnprocessed', async () => {
|
|
this.pendingUnprocessed.set(data.id, data);
|
|
|
|
// Current zone doesn't support pending unprocessed - commit immediately
|
|
if (!zone.supportsPendingUnprocessed()) {
|
|
await this.commitZoneChanges('addUnprocessed');
|
|
}
|
|
});
|
|
}
|
|
|
|
addMultipleUnprocessed(
|
|
array: Array<UnprocessedType>,
|
|
{ zone = GLOBAL_ZONE }: SessionTransactionOptions = {}
|
|
): Promise<void> {
|
|
return this.withZone(zone, 'addMultipleUnprocessed', async () => {
|
|
for (const elem of array) {
|
|
this.pendingUnprocessed.set(elem.id, elem);
|
|
}
|
|
// Current zone doesn't support pending unprocessed - commit immediately
|
|
if (!zone.supportsPendingUnprocessed()) {
|
|
await this.commitZoneChanges('addMultipleUnprocessed');
|
|
}
|
|
});
|
|
}
|
|
|
|
updateUnprocessedWithData(
|
|
id: string,
|
|
data: UnprocessedUpdateType
|
|
): Promise<void> {
|
|
return this.withZone(GLOBAL_ZONE, 'updateUnprocessedWithData', async () => {
|
|
await window.Signal.Data.updateUnprocessedWithData(id, data);
|
|
});
|
|
}
|
|
|
|
updateUnprocessedsWithData(
|
|
items: Array<{ id: string; data: UnprocessedUpdateType }>
|
|
): Promise<void> {
|
|
return this.withZone(
|
|
GLOBAL_ZONE,
|
|
'updateUnprocessedsWithData',
|
|
async () => {
|
|
await window.Signal.Data.updateUnprocessedsWithData(items);
|
|
}
|
|
);
|
|
}
|
|
|
|
removeUnprocessed(idOrArray: string | Array<string>): Promise<void> {
|
|
return this.withZone(GLOBAL_ZONE, 'removeUnprocessed', async () => {
|
|
await window.Signal.Data.removeUnprocessed(idOrArray);
|
|
});
|
|
}
|
|
|
|
removeAllUnprocessed(): Promise<void> {
|
|
return this.withZone(GLOBAL_ZONE, 'removeAllUnprocessed', async () => {
|
|
await 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(mode: RemoveAllConfiguration): Promise<void> {
|
|
await window.Signal.Data.removeAllConfiguration(mode);
|
|
await this.hydrateCaches();
|
|
|
|
window.storage.reset();
|
|
await window.storage.fetch();
|
|
}
|
|
|
|
private _getAllSessions(): Array<SessionCacheEntry> {
|
|
const union = new Map<string, SessionCacheEntry>();
|
|
|
|
this.sessions?.forEach((value, key) => {
|
|
union.set(key, value);
|
|
});
|
|
this.pendingSessions.forEach((value, key) => {
|
|
union.set(key, value);
|
|
});
|
|
|
|
return Array.from(union.values());
|
|
}
|
|
}
|
|
|
|
window.SignalProtocolStore = SignalProtocolStore;
|