feat: отправка chatCacheFingerprint и exp в login-пакете (opcode 19)

lib/backend/api.dart

@@ -39,6 +39,12 @@ class Api {
 
   Map<dynamic, dynamic>? get userAgent => _userAgent;
 
+  int? _callsSeed;
+  String? _deviceId;
+
+  int? get callsSeed => _callsSeed;
+  String? get deviceId => _deviceId;
+
   List<CountryName>? _registrationCountries;
 
   List<CountryName> get registrationCountries =>
@@ -111,6 +117,7 @@ class Api {
     try {
       final response = await sendHandshake();
       if (response.isOk) {
+        _callsSeed = response.payload['callsSeed'] as int?;
         _registrationCountries = _parseRegistrationCountries(response.payload);
         _setSessionState(SessionState.online);
         _startPinging();
@@ -242,6 +249,8 @@ class Api {
       'buildNumber': buildNumber,
     };
 
+    _deviceId = deviceId;
+
     final payload = <dynamic, dynamic>{
       'mt_instanceid': await DeviceIdentity.instanceId(),
       'clientSessionId': DeviceIdentity.clientSessionId,

lib/backend/modules/account.dart

@@ -1,6 +1,8 @@
 import 'dart:async';
 import 'dart:convert';
+import 'dart:typed_data';
 import '../api.dart';
+import '../../core/protocol/chat_cache_fingerprint.dart';
 import '../../core/protocol/opcode_map.dart';
 import '../../core/protocol/packet.dart';
 import '../../core/storage/app_database.dart';
@@ -1048,9 +1050,18 @@ class AccountModule {
     final payload = <dynamic, dynamic>{
       'token': token,
       'interactive': true,
-      if (_api.userAgent != null) 'userAgent': _api.userAgent,
+      'exp': {
+        'chatsCountGroups': Uint8List.fromList([0x0b, 0x32]),
+      },
     };
 
+    final callsSeed = _api.callsSeed;
+    final deviceId = _api.deviceId;
+    if (callsSeed != null && deviceId != null) {
+      payload['chatCacheFingerprint'] =
+          ChatCacheFingerprint.compute(callsSeed, deviceId);
+    }
+
     if (sync != null) {
       payload['presenceSync'] = sync.presenceSync;
       payload['chatsSync'] = sync.chatsSync;
@@ -1060,9 +1071,6 @@ class AccountModule {
       payload['bannersSync'] = sync.bannersSync;
       payload['lastLogin'] = sync.lastLogin;
       if (sync.configHash != null) payload['configHash'] = sync.configHash;
-      if (sync.chatCacheFingerprint != null) {
-        payload['chatCacheFingerprint'] = sync.chatCacheFingerprint;
-      }
     } else {
       payload['presenceSync'] = 0;
     }