fix: ensure proper type casting for cache and message handling

src/Socket/chats.ts

@@ -5,6 +5,7 @@ import { DEFAULT_CACHE_TTLS, PROCESSABLE_HISTORY_TYPES } from '../Defaults'
 import {
 	ALL_WA_PATCH_NAMES,
 	BotListInfo,
+	CacheStore,
 	ChatModification,
 	ChatMutation,
 	LTHashState,
@@ -79,7 +80,7 @@ export const makeChatsSocket = (config: SocketConfig) => {
 		})
 
 	if (!config.placeholderResendCache) {
-		config.placeholderResendCache = placeholderResendCache
+		config.placeholderResendCache = placeholderResendCache as CacheStore
 	}
 
 	/** helper function to fetch the given app state sync key */
@@ -974,7 +975,7 @@ export const makeChatsSocket = (config: SocketConfig) => {
 			})(),
 			processMessage(msg, {
 				shouldProcessHistoryMsg,
-				placeholderResendCache,
+				placeholderResendCache: placeholderResendCache as CacheStore,
 				ev,
 				creds: authState.creds,
 				keyStore: authState.keys,

src/Socket/messages-recv.ts

@@ -169,7 +169,7 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 		const msgId = msgKey.id!
 
 		const key = `${msgId}:${msgKey?.participant}`
-		let retryCount = msgRetryCache.get<number>(key) || 0
+		let retryCount = (msgRetryCache.get<number>(key) as number) || 0
 		if (retryCount >= maxMsgRetryCount) {
 			logger.debug({ retryCount, msgId }, 'reached retry limit, clearing')
 			msgRetryCache.del(key)
@@ -585,13 +585,13 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 
 	const willSendMessageAgain = (id: string, participant: string) => {
 		const key = `${id}:${participant}`
-		const retryCount = msgRetryCache.get<number>(key) || 0
+		const retryCount = (msgRetryCache.get<number>(key) as number) || 0
 		return retryCount < maxMsgRetryCount
 	}
 
 	const updateSendMessageAgainCount = (id: string, participant: string) => {
 		const key = `${id}:${participant}`
-		const newValue = (msgRetryCache.get<number>(key) || 0) + 1
+		const newValue = ((msgRetryCache.get<number>(key) as number) || 0) + 1
 		msgRetryCache.set(key, newValue)
 	}
 
@@ -961,8 +961,8 @@ export const makeMessagesRecvSocket = (config: SocketConfig) => {
 
 		// use existing call info to populate this event
 		if (existingCall) {
-			call.isVideo = existingCall.isVideo
-			call.isGroup = existingCall.isGroup
+			call.isVideo = (existingCall as WACallEvent).isVideo
+			call.isGroup = (existingCall as WACallEvent).isGroup
 		}
 
 		// delete data once call has ended

src/Socket/messages-send.ts

@@ -195,8 +195,8 @@ export const makeMessagesSocket = (config: SocketConfig) => {
 			const user = jidDecode(jid)?.user
 			jid = jidNormalizedUser(jid)
 			if (useCache) {
-				const devices = userDevicesCache.get<JidWithDevice[]>(user!)
-				if (devices) {
+				const devices = userDevicesCache.get<JidWithDevice[]>(user!) as JidWithDevice[] | undefined
+				if (devices && Array.isArray(devices)) {
 					deviceResults.push(...devices)
 
 					logger.trace({ user }, 'using cache for devices')

src/Utils/auth-utils.ts

@@ -43,8 +43,8 @@ export function makeCacheableSignalKeyStore(
 			const idsToFetch: string[] = []
 			for (const id of ids) {
 				const item = cache.get<SignalDataTypeMap[typeof type]>(getUniqueId(type, id))
-				if (typeof item !== 'undefined') {
-					data[id] = item
+				if (typeof item !== 'undefined' && item !== null) {
+					data[id] = item as SignalDataTypeMap[typeof type]
 				} else {
 					idsToFetch.push(id)
 				}
@@ -55,7 +55,7 @@ export function makeCacheableSignalKeyStore(
 				const fetched = await store.get(type, idsToFetch)
 				for (const id of idsToFetch) {
 					const item = fetched[id]
-					if (item) {
+					if (item !== null && item !== undefined) {
 						data[id] = item
 						cache.set(getUniqueId(type, id), item)
 					}

src/Utils/crypto.ts

@@ -136,7 +136,7 @@ export async function hkdf(
 	const infoBytes = info.info ? new TextEncoder().encode(info.info) : new Uint8Array(0)
 
 	// Import the input key material
-	const importedKey = await subtle.importKey('raw', inputKeyMaterial, { name: 'HKDF' }, false, ['deriveBits'])
+	const importedKey = await subtle.importKey('raw', inputKeyMaterial as BufferSource, { name: 'HKDF' }, false, ['deriveBits'])
 
 	// Derive bits using HKDF
 	const derivedBits = await subtle.deriveBits(
@@ -167,7 +167,7 @@ export async function derivePairingCodeKey(pairingCode: string, salt: Buffer): P
 	const derivedBits = await subtle.deriveBits(
 		{
 			name: 'PBKDF2',
-			salt: saltBuffer,
+			salt: saltBuffer as BufferSource,
 			iterations: 2 << 16,
 			hash: 'SHA-256'
 		},

src/Utils/history.ts

@@ -20,7 +20,7 @@ export const downloadHistory = async (msg: proto.Message.IHistorySyncNotificatio
 	let buffer = Buffer.concat(bufferArray)
 
 	// decompress buffer
-	buffer = await inflatePromise(buffer)
+	buffer = Buffer.from(await inflatePromise(buffer))
 
 	const syncData = proto.HistorySync.decode(buffer)
 	return syncData