@baileys-md/baileys
Version:
Baileys WhatsApp API
220 lines (215 loc) • 6.88 kB
JavaScript
//========================================//
import { delay, generateRegistrationId } from "./generics.js";
import { DEFAULT_CACHE_TTLS } from "../Defaults/index.js";
import { PreKeyManager } from "./pre-key-manager.js";
import { Curve, signedKeyPair } from "./crypto.js";
import { AsyncLocalStorage } from "async_hooks";
import NodeCache from "@cacheable/node-cache";
import { randomBytes } from "crypto";
import { Mutex } from "async-mutex";
import PQueue from "p-queue";
export function makeCacheableSignalKeyStore(store, logger, _cache) {
const cache = _cache ||
new NodeCache({
stdTTL: DEFAULT_CACHE_TTLS.SIGNAL_STORE,
useClones: false,
deleteOnExpire: true
});
const cacheMutex = new Mutex();
function getUniqueId(type, id) {
return `${type}.${id}`;
}
return {
async get(type, ids) {
return cacheMutex.runExclusive(async () => {
const data = {};
const idsToFetch = [];
for (const id of ids) {
const item = (await cache.get(getUniqueId(type, id)));
if (typeof item !== "undefined") {
data[id] = item;
}
else {
idsToFetch.push(id);
}
}
if (idsToFetch.length) {
logger?.trace({ items: idsToFetch.length }, "loading from store");
const fetched = await store.get(type, idsToFetch);
for (const id of idsToFetch) {
const item = fetched[id];
if (item) {
data[id] = item;
cache.set(getUniqueId(type, id), item);
}
}
}
return data;
});
},
async set(data) {
return cacheMutex.runExclusive(async () => {
let keys = 0;
for (const type in data) {
for (const id in data[type]) {
await cache.set(getUniqueId(type, id), data[type][id]);
keys += 1;
}
}
logger?.trace({ keys }, "updated cache");
await store.set(data);
});
},
async clear() {
await cache.flushAll();
await store.clear?.();
}
};
}
export const addTransactionCapability = (state, logger, { maxCommitRetries, delayBetweenTriesMs }) => {
const txStorage = new AsyncLocalStorage();
const keyQueues = new Map();
const txMutexes = new Map();
const preKeyManager = new PreKeyManager(state, logger);
function getQueue(key) {
if (!keyQueues.has(key)) {
keyQueues.set(key, new PQueue({ concurrency: 1 }));
}
return keyQueues.get(key);
}
function getTxMutex(key) {
if (!txMutexes.has(key)) {
txMutexes.set(key, new Mutex());
}
return txMutexes.get(key);
}
function isInTransaction() {
return !!txStorage.getStore();
}
async function commitWithRetry(mutations) {
if (Object.keys(mutations).length === 0) {
logger.trace("no mutations in transaction");
return;
}
logger.trace("committing transaction");
for (let attempt = 0; attempt < maxCommitRetries; attempt++) {
try {
await state.set(mutations);
logger.trace({ mutationCount: Object.keys(mutations).length }, "committed transaction");
return;
}
catch (error) {
const retriesLeft = maxCommitRetries - attempt - 1;
logger.warn(`failed to commit mutations, retries left=${retriesLeft}`);
if (retriesLeft === 0) {
throw error;
}
await delay(delayBetweenTriesMs);
}
}
}
return {
get: async (type, ids) => {
const ctx = txStorage.getStore();
if (!ctx) {
return state.get(type, ids);
}
const cached = ctx.cache[type] || {};
const missing = ids.filter(id => !(id in cached));
if (missing.length > 0) {
ctx.dbQueries++;
logger.trace({ type, count: missing.length }, "fetching missing keys in transaction");
const fetched = await getTxMutex(type).runExclusive(() => state.get(type, missing));
ctx.cache[type] = ctx.cache[type] || {};
Object.assign(ctx.cache[type], fetched);
}
const result = {};
for (const id of ids) {
const value = ctx.cache[type]?.[id];
if (value !== undefined && value !== null) {
result[id] = value;
}
}
return result;
},
set: async (data) => {
const ctx = txStorage.getStore();
if (!ctx) {
const types = Object.keys(data);
for (const type_ of types) {
const type = type_;
if (type === "pre-key") {
await preKeyManager.validateDeletions(data, type);
}
}
await Promise.all(types.map(type => getQueue(type).add(async () => {
const typeData = { [type]: data[type] };
await state.set(typeData);
})));
return;
}
logger.trace({ types: Object.keys(data) }, "caching in transaction");
for (const key_ in data) {
const key = key_;
ctx.cache[key] = ctx.cache[key] || {};
ctx.mutations[key] = ctx.mutations[key] || {};
if (key === "pre-key") {
await preKeyManager.processOperations(data, key, ctx.cache, ctx.mutations, true);
}
else {
Object.assign(ctx.cache[key], data[key]);
Object.assign(ctx.mutations[key], data[key]);
}
}
},
isInTransaction,
transaction: async (work, key) => {
const existing = txStorage.getStore();
if (existing) {
logger.trace("reusing existing transaction context");
return work();
}
return getTxMutex(key).runExclusive(async () => {
const ctx = {
cache: {},
mutations: {},
dbQueries: 0
};
logger.trace("entering transaction");
try {
const result = await txStorage.run(ctx, work);
await commitWithRetry(ctx.mutations);
logger.trace({ dbQueries: ctx.dbQueries }, "transaction completed");
return result;
}
catch (error) {
logger.error({ error }, "transaction failed, rolling back");
throw error;
}
});
}
};
};
export const initAuthCreds = () => {
const identityKey = Curve.generateKeyPair();
return {
"noiseKey": Curve.generateKeyPair(),
"pairingEphemeralKeyPair": Curve.generateKeyPair(),
"signedIdentityKey": identityKey,
"signedPreKey": signedKeyPair(identityKey, 1),
"registrationId": generateRegistrationId(),
"advSecretKey": randomBytes(32).toString("base64"),
"processedHistoryMessages": [],
"nextPreKeyId": 1,
"firstUnuploadedPreKeyId": 1,
"accountSyncCounter": 0,
"accountSettings": {
"unarchiveChats": false
},
"registered": false,
"pairingCode": undefined,
"lastPropHash": undefined,
"routingInfo": undefined,
"additionalData": undefined
};
};