implement encrypting app patches

src/Types/Auth.ts

@@ -1,5 +1,6 @@
 import type { Contact } from "./Contact"
 import type { proto } from "../../WAProto"
+import type { WAPatchName, ChatMutation } from "./Chat"
 
 export type KeyPair = { public: Uint8Array, private: Uint8Array }
 export type SignedKeyPair = { keyPair: KeyPair, signature: Uint8Array, keyId: number }
@@ -13,7 +14,7 @@ export type SignalIdentity = {
 	identifierKey: Uint8Array
 }
 
-export type CollectionType = 'regular_high' | 'regular_low' | 'critical_unblock_low' | 'critical_block'
+export type LTHashState = { version: number, hash: Buffer, mutations: ChatMutation[] }
 
 export type AuthenticationCreds = {
     noiseKey: KeyPair
@@ -24,9 +25,6 @@ export type AuthenticationCreds = {
     me?: Contact
     account?: proto.ADVSignedDeviceIdentity
     signalIdentities?: SignalIdentity[]
-    appStateVersion?: {
-        [T in CollectionType]: number
-    }
     myAppStateKeyId?: string
     firstUnuploadedPreKeyId: number
     serverHasPreKeys: boolean
@@ -45,6 +43,9 @@ export type SignalKeyStore = {
 
     getAppStateSyncKey: (id: string) => Awaitable<proto.IAppStateSyncKeyData>
     setAppStateSyncKey: (id: string, item: proto.IAppStateSyncKeyData | null) => Awaitable<void>
+
+    getAppStateSyncVersion: (name: WAPatchName) => Awaitable<LTHashState>
+    setAppStateSyncVersion: (id: WAPatchName, item: LTHashState) => Awaitable<void>
 }
 
 export type AuthenticationState = {

src/Types/Chat.ts

@@ -3,12 +3,14 @@ import type { proto } from "../../WAProto"
 /** set of statuses visible to other people; see updatePresence() in WhatsAppWeb.Send */
 export type WAPresence = 'unavailable' | 'available' | 'composing' | 'recording' | 'paused'
 
+export type WAPatchName = 'critical_block' | 'critical_unblock_low' | 'regular_low' | 'regular_high' | 'regular'
+
 export interface PresenceData {
     lastKnownPresence: WAPresence
     lastSeen?: number
 }
 
-export type ChatMutation = { action: proto.ISyncActionValue, index: [string, string] }
+export type ChatMutation = { action: proto.ISyncActionValue, index: [string, string], indexMac: Uint8Array, valueMac: Uint8Array, operation: number }
 
 export type Chat = Omit<proto.IConversation, 'messages'> & {
     /** unix timestamp of date when mute ends, if applicable */

src/Types/Message.ts

@@ -1,6 +1,7 @@
 import type { ReadStream } from "fs"
 import type { Logger } from "pino"
 import type { URL } from "url"
+import type { GroupMetadata } from "./GroupMetadata"
 import { proto } from '../../WAProto'
 
 // export the WAMessage Prototypes
@@ -103,6 +104,13 @@ export type AnyMessageContent = AnyRegularMessageContent | {
 }  | {
 	disappearingMessagesInChat: boolean | number
 }
+
+export type MessageRelayOptions = {
+    messageId?: string
+    cachedGroupMetadata?: (jid: string) => Promise<GroupMetadata | undefined>
+    //cachedDevices?: (jid: string) => Promise<string[] | undefined>
+}
+
 export type MiscMessageGenerationOptions = {
     /** Force message id */
     messageId?: string