Bug fixes

lib/models/dhcp.dart

@@ -72,8 +72,8 @@ class DhcpStatus {
 
   factory DhcpStatus.fromJson(Map<String, dynamic> json) => DhcpStatus(
     interfaceName: json["interface_name"],
-    v4: IpVersion.fromJson(json["v4"]),
+    v4: json["v4"] != null ? IpVersion.fromJson(json["v4"]) : null,
-    v6: IpVersion.fromJson(json["v6"]),
+    v6: json["v6"] != null ? IpVersion.fromJson(json["v6"]) : null,
     leases: List<Lease>.from(json["leases"].map((x) => Lease.fromJson(x))),
     staticLeases: List<Lease>.from(json["static_leases"].map((x) => Lease.fromJson(x))),
     enabled: json["enabled"],

lib/models/dns_info.dart

@@ -12,7 +12,7 @@ class DnsInfo {
   int? cacheSize;
   int? cacheTtlMin;
   int? cacheTtlMax;
-  bool cacheOptimistic;
+  bool? cacheOptimistic;
   bool resolveClients;
   bool usePrivatePtrResolvers;
   List<String> localPtrUpstreams;

lib/providers/servers_provider.dart

@@ -169,12 +169,14 @@ class ServersProvider with ChangeNotifier {
 
   void checkServerUpdatesAvailable({
     required Server server, 
+    ApiClient? apiClient
   }) async {
+    final client = apiClient ?? _apiClient;
     setUpdateAvailableLoadStatus(LoadStatus.loading, true);
-    final result = await _apiClient!.checkServerUpdates();
+    final result = await client!.checkServerUpdates();
     if (result['result'] == 'success') {
       UpdateAvailableData data = UpdateAvailableData.fromJson(result['data']);
-      final gitHubResult = await _apiClient!.getUpdateChangelog(releaseTag: data.newVersion ?? data.currentVersion);
+      final gitHubResult = await client!.getUpdateChangelog(releaseTag: data.newVersion ?? data.currentVersion);
       if (gitHubResult['result'] == 'success') {
         data.changelog = gitHubResult['body'];
       }
@@ -186,11 +188,12 @@ class ServersProvider with ChangeNotifier {
     }
   }
 
-  Future initializateServer(Server server) async {
+  Future initializateServer(Server server, ApiClient apiClient) async {
     final serverStatus = await _apiClient!.getServerStatus();
     if (serverStatus['result'] == 'success') {
       checkServerUpdatesAvailable( // Do not await
         server: server,
+        apiClient: apiClient
       ); 
     }
   }
@@ -222,8 +225,9 @@ class ServersProvider with ChangeNotifier {
 
       if (defaultServer != null) {
         _selectedServer = defaultServer;
-        _apiClient = ApiClient(server: defaultServer);
+        final client = ApiClient(server: defaultServer);
-        initializateServer(defaultServer);
+        _apiClient = client;
+        initializateServer(defaultServer, client);
       }
     }
     else {

lib/screens/home/home.dart

@@ -304,7 +304,7 @@ class _HomeState extends State<Home> {
                     displacement: 95,
                     onRefresh: () async {
                       final result = await statusProvider.getServerStatus();
-                      if (result == false) {
+                      if (mounted && result == false) {
                         showSnacbkar(
                           appConfigProvider: appConfigProvider, 
                           label: AppLocalizations.of(context)!.serverStatusNotRefreshed, 

lib/screens/home/management_modal.dart

@@ -80,7 +80,7 @@ class _ManagementModalState extends State<ManagementModal> with SingleTickerProv
         newStatus: value,
         time: time
       );
-      if (result != null) {
+      if (mounted && result != null) {
         if (result != false) {
           appConfigProvider.addLog(result);
         }

lib/screens/settings/dns/cache_config.dart

@@ -58,7 +58,7 @@ class _CacheConfigDnsScreenState extends State<CacheConfigDnsScreen> {
     cacheSizeController.text = dnsProvider.dnsInfo!.cacheSize.toString();
     overrideMinTtlController.text = dnsProvider.dnsInfo!.cacheTtlMin.toString();
     overrideMaxTtlController.text = dnsProvider.dnsInfo!.cacheTtlMax.toString();
-    optimisticCache = dnsProvider.dnsInfo!.cacheOptimistic;
+    optimisticCache = dnsProvider.dnsInfo!.cacheOptimistic ?? false;
     validData = true;
     super.initState();
   }

lib/screens/top_items/top_items.dart

@@ -130,7 +130,7 @@ class _TopItemsScreenState extends State<TopItemsScreen> {
       body: RefreshIndicator(
         onRefresh: () async {
           final result = await statusProvider.getServerStatus();
-          if (result == false) {
+          if (mounted && result == false) {
             showSnacbkar(
               appConfigProvider: appConfigProvider, 
               label: AppLocalizations.of(context)!.serverStatusNotRefreshed, 

lib/services/http_requests.dart

@@ -20,6 +20,7 @@ import 'package:adguard_home_manager/models/clients.dart';
 import 'package:adguard_home_manager/models/clients_allowed_blocked.dart';
 import 'package:adguard_home_manager/models/server.dart';
 import 'package:adguard_home_manager/constants/urls.dart';
+import 'package:sentry_flutter/sentry_flutter.dart';
 
 
 Future<Map<String, dynamic>> apiRequest({
@@ -270,6 +271,7 @@ class ApiClient {
   });
 
   Future getServerVersion() async {
+    try { 
       final result = await apiRequest(
         server: server,
         method: 'get',
@@ -300,9 +302,22 @@ class ApiClient {
       else {
         return result;
       }
+    } catch (e) {
+      Sentry.captureException(e);
+      return {
+        'result': 'error',
+        'log': AppLog(
+          type: 'get_server_version', 
+          dateTime: DateTime.now(), 
+          message: 'error_code_not_expected',
+          resBody: e.toString()
+        )
+      };
+    }
   }
 
   Future getServerStatus() async {
+    try {
       final result = await Future.wait([
         apiRequest(server: server, method: 'get', urlPath: '/stats', type: 'server_status'),
         apiRequest(server: server, method: 'get', urlPath: '/status', type: 'server_status'),
@@ -370,6 +385,18 @@ class ApiClient {
           )
         };
       }
+    } catch (e) {
+      Sentry.captureException(e);
+      return {
+          'result': 'error',
+          'log': AppLog(
+            type: 'get_server_status', 
+            dateTime: DateTime.now(), 
+            message: 'no_response',
+            resBody: e.toString()
+          )
+        };
+    }
   }
 
   Future updateFiltering({
@@ -2004,6 +2031,7 @@ class ApiClient {
   }
 
   Future checkServerUpdates() async {
+    try {
       final result = await Future.wait([
         apiRequest(
           urlPath: '/version.json', 
@@ -2058,6 +2086,18 @@ class ApiClient {
           )
         };
       }
+    } catch (e) {
+      Sentry.captureException(e);
+      return {
+        'result': 'error',
+        'log': AppLog(
+          type: 'get_filtering_status', 
+          dateTime: DateTime.now(), 
+          message: 'no_response',
+          resBody: e.toString(),
+        )
+      };
+    }
   }
 
   Future getUpdateChangelog({

lib/widgets/add_server_modal.dart

@@ -256,6 +256,8 @@ class _AddServerModalState extends State<AddServerModal> {
         ? await loginHA(serverObj)
         : await login(serverObj);
 
+      if (!mounted) return;
+
       if (result['result'] == 'success') {
         if (serverObj.user != null && serverObj.password != null) {
           serverObj.authToken = encodeBase64UserPass(serverObj.user!, serverObj.password!);
@@ -268,6 +270,8 @@ class _AddServerModalState extends State<AddServerModal> {
           
           final serverStatus = await apiClient.getServerStatus();
 
+          if (!mounted) return;
+
           if (serverStatus['result'] == 'success') {
             statusProvider.setServerStatusData(
               data: serverStatus['data']
@@ -380,12 +384,14 @@ class _AddServerModalState extends State<AddServerModal> {
         ? await loginHA(serverObj)
         : await login(serverObj);
 
+      if (!mounted) return;
       if (result['result'] == 'success') {
         if (serverObj.user != null && serverObj.password != null) {
           serverObj.authToken = encodeBase64UserPass(serverObj.user!, serverObj.password!);
         }
         final serverSaved = await serversProvider.editServer(serverObj);
 
+        if (!mounted) return;
         if (serverSaved == null) {
           final ApiClient apiClient = ApiClient(server: serverObj);
           final version = await apiClient.getServerVersion();