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chore: correctly throw app state key not found

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This commit is contained in:
Adhiraj Singh
2022-11-06 20:06:50 +05:30
parent 4352a84498
commit 154926ec3c
1 changed files with 5 additions and 1 deletions
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6
src/Utils/chat-utils.ts
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@@ -9,7 +9,7 @@ import { toNumber } from './generics'
import { LT_HASH_ANTI_TAMPERING } from './lt-hash' import { LT_HASH_ANTI_TAMPERING } from './lt-hash'
import { downloadContentFromMessage, } from './messages-media' import { downloadContentFromMessage, } from './messages-media'
type FetchAppStateSyncKey = (keyId: string) => Promise<proto.Message.IAppStateSyncKeyData> | proto.Message.IAppStateSyncKeyData type FetchAppStateSyncKey = (keyId: string) => Promise<proto.Message.IAppStateSyncKeyData | null | undefined>
const mutationKeys = (keydata: Uint8Array) => { const mutationKeys = (keydata: Uint8Array) => {
const expanded = hkdf(keydata, 160, { info: 'WhatsApp Mutation Keys' }) const expanded = hkdf(keydata, 160, { info: 'WhatsApp Mutation Keys' })
@@ -261,6 +261,10 @@ export const decodeSyncdPatch = async(
if(validateMacs) { if(validateMacs) {
const base64Key = Buffer.from(msg.keyId!.id!).toString('base64') const base64Key = Buffer.from(msg.keyId!.id!).toString('base64')
const mainKeyObj = await getAppStateSyncKey(base64Key) const mainKeyObj = await getAppStateSyncKey(base64Key)
if(!mainKeyObj) {
throw new Boom(`failed to find key "${base64Key}" to decode patch`, { statusCode: 404, data: { msg } })
}
const mainKey = mutationKeys(mainKeyObj.keyData!) const mainKey = mutationKeys(mainKeyObj.keyData!)
const mutationmacs = msg.mutations!.map(mutation => mutation.record!.value!.blob!.slice(-32)) const mutationmacs = msg.mutations!.map(mutation => mutation.record!.value!.blob!.slice(-32))