Fix openutau crash when trying to install singer from an encrypted archive file

OpenUtau/Strings/Strings.axaml

@@ -64,6 +64,7 @@
   <system:String x:Key="errors.details">Error Details</system:String>
   <system:String x:Key="errors.diffsinger.downloadvocoder1">Error loading vocoder </system:String>
   <system:String x:Key="errors.diffsinger.downloadvocoder2">. Please download vocoder from </system:String>
+  <system:String x:Key="errors.encryptedarchive">Encrypted archive file isn't supported. Please extract the archive file manually.</system:String>
   <system:String x:Key="errors.expression.abbrlong">Abbreviation must be between 1 and 4 characters long</system:String>
   <system:String x:Key="errors.expression.abbrset">Abbreviation must be set</system:String>
   <system:String x:Key="errors.expression.abbrunique">Abbreviations must be unique</system:String>

OpenUtau/ViewModels/SingerSetupViewModel.cs

@@ -43,10 +43,16 @@ public SingerSetupViewModel() {
             ArchiveEncoding = Encodings[0];
             TextEncoding = Encodings[0];
             textItems = new ObservableCollectionExtended<string>();
-
             this.WhenAnyValue(vm => vm.ArchiveFilePath)
                 .Subscribe(_ => {
                     if (!string.IsNullOrEmpty(ArchiveFilePath)) {
+                        if(IsEncrypted(ArchiveFilePath)) {
+                            throw new MessageCustomizableException(
+                                "Encrypted archive file isn't supported",
+                                "<translate:errors.encryptedarchive>", 
+                                new Exception("Encrypted archive file: " + ArchiveFilePath)
+                            );
+                        }                        
                         var config = LoadCharacterYaml(ArchiveFilePath);
                         MissingInfo = string.IsNullOrEmpty(config?.SingerType);
                         if (!string.IsNullOrEmpty(config?.TextFileEncoding)) {
@@ -89,6 +95,12 @@ private void RefreshArchiveItems() {
             }
         }
 
+        private bool IsEncrypted(string archiveFilePath) {
+            using (var archive = ArchiveFactory.Open(archiveFilePath)) {
+                return archive.Entries.Any(e => e.IsEncrypted);
+            }
+        }
+
         private VoicebankConfig? LoadCharacterYaml(string archiveFilePath) {
             using (var archive = ArchiveFactory.Open(archiveFilePath)) {
                 var entry = archive.Entries.FirstOrDefault(e => Path.GetFileName(e.Key)=="character.yaml");

OpenUtau/Views/MainWindow.axaml.cs

@@ -614,7 +614,14 @@ async void OnMenuInstallSinger(object sender, RoutedEventArgs args) {
                     setup.Position = setup.Position.WithY(0);
                 }
             } catch (Exception e) {
-                _ = MessageBox.ShowError(this, e);
+                Log.Error(e, $"Failed to install singer {file}");
+                MessageCustomizableException mce;
+                if(e is MessageCustomizableException){
+                    mce = (MessageCustomizableException)e;
+                } else {
+                    mce = new MessageCustomizableException($"Failed to install singer {file}", $"<translate:errors.failed.installsinger>: {file}", e);
+                }
+                _ = await MessageBox.ShowError(this, mce);
             }
         }
 
@@ -864,7 +871,13 @@ async void OnDrop(object? sender, DragEventArgs args) {
                     }
                 } catch (Exception e) {
                     Log.Error(e, $"Failed to install singer {file}");
-                    _ = await MessageBox.ShowError(this, new MessageCustomizableException("Failed to install singer", "<translate:errors.failed.installsinger>", e));
+                    MessageCustomizableException mce;
+                    if(e is MessageCustomizableException){
+                        mce = (MessageCustomizableException)e;
+                    } else {
+                        mce = new MessageCustomizableException($"Failed to install singer {file}", $"<translate:errors.failed.installsinger>: {file}", e);
+                    }
+                    _ = await MessageBox.ShowError(this, mce);
                 }
             } else if (ext == Core.Vogen.VogenSingerInstaller.FileExt) {
                 Core.Vogen.VogenSingerInstaller.Install(file);