GUI: Load binary file

Il2CppInspector.GUI/App.xaml.cs

@@ -7,6 +7,7 @@ using System.Linq;
 using System.Threading.Tasks;
 using System.Windows;
 using Il2CppInspector;
+using Inspector = Il2CppInspector.Il2CppInspector;
 
 namespace Il2CppInspectorGUI
 {
@@ -15,7 +16,9 @@ namespace Il2CppInspectorGUI
     /// </summary>
     public partial class App : Application
     {
-        public Metadata CurrentMetadata { get; private set; }
+        private Metadata metadata;
+
+        public List<Inspector> Il2CppImages { get; } = new List<Inspector>();
 
         public Exception LastException { get; private set; }
 
@@ -23,7 +26,43 @@ namespace Il2CppInspectorGUI
         public Task<bool> LoadMetadataAsync(string metadataFile) =>
             Task.Run(() => {
                 try {
-                    CurrentMetadata = new Metadata(new MemoryStream(File.ReadAllBytes(metadataFile)));
+                    metadata = new Metadata(new MemoryStream(File.ReadAllBytes(metadataFile)));
+                    return true;
+                }
+                catch (Exception ex) {
+                    LastException = ex;
+                    return false;
+                }
+            });
+
+        public Task<bool> LoadBinaryAsync(string binaryFile) =>
+            Task.Run(() => {
+                try {
+                    // This may throw other exceptions from the individual loaders as well
+                    IFileFormatReader stream = FileFormatReader.Load(binaryFile);
+                    if (stream == null) {
+                        throw new InvalidOperationException("Could not determine the binary file format");
+                    }
+                    if (!stream.Images.Any()) {
+                        throw new InvalidOperationException("Could not find any binary images in the file");
+                    }
+
+                    // Multi-image binaries may contain more than one Il2Cpp image
+                    Il2CppImages.Clear();
+                    foreach (var image in stream.Images) {
+                        // Architecture-agnostic load attempt
+                        try {
+                            // If we can't load the IL2CPP data here, it's probably packed or obfuscated; ignore it
+                            if (Il2CppBinary.Load(image, metadata.Version) is Il2CppBinary binary) {
+                                Il2CppImages.Add(new Inspector(binary, metadata));
+                            }
+                        }
+                        // Unsupported architecture; ignore it
+                        catch (NotImplementedException) { }
+                    }
+                    if (!Il2CppImages.Any()) {
+                        throw new InvalidOperationException("Could not auto-detect any IL2CPP binary images in the file");
+                    }
                     return true;
                 }
                 catch (Exception ex) {

Il2CppInspector.GUI/MainWindow.xaml

@@ -71,7 +71,7 @@
         <!-- Main content -->
         <Grid>
             <!-- Information about the loaded metadata and binary -->
-            <Grid>
+            <Grid Name="gridImageDetails">
                 <Grid.RowDefinitions>
                     <RowDefinition Height ="Auto" />
                     <RowDefinition Height ="Auto" />
@@ -84,7 +84,7 @@
                     <ColumnDefinition Width="25*"></ColumnDefinition>
                 </Grid.ColumnDefinitions>
                 <Label Grid.Row="0" Grid.Column="0" Content="IL2CPP Metadata version"></Label>
-                <Label Name="lblMetadataVersion" Grid.Row="0" Grid.Column="1" Content="{Binding Path=Version}"></Label>
+                <Label Grid.Row="0" Grid.Column="1" Content="{Binding Path=Version}"></Label>
             </Grid>
         </Grid>
 
@@ -92,6 +92,6 @@
         <Rectangle Name="rectModalLightBoxBackground" Fill="Black" Opacity="0.4"></Rectangle>
         <Button Name="btnSelectMetadataFile" Style="{StaticResource LightBoxButton}" Margin="100" Click="BtnSelectMetadataFile_OnClick">Select an IL2CPP metadata file</Button>
         <Button Name="btnSelectBinaryFile" Style="{StaticResource LightBoxButton}" Margin="100" Click="BtnSelectBinaryFile_OnClick" Visibility="Hidden">Select an IL2CPP binary file</Button>
-        <Button Name="btnBack" VerticalAlignment="Bottom" DockPanel.Dock="Bottom" Style="{StaticResource LightBoxButton}" Margin="100,0,550,20" FontSize="18" Click="BtnBack_OnClick" Visibility="Hidden">&lt;&lt; Back</Button>
+        <Button Name="btnBack" VerticalAlignment="Bottom" DockPanel.Dock="Bottom" Style="{StaticResource LightBoxButton}" Margin="20,0,630,20" FontSize="18" Click="BtnBack_OnClick" Visibility="Hidden">&lt;&lt; Back</Button>
     </Grid>
 </Window>

Il2CppInspector.GUI/MainWindow.xaml.cs

@@ -45,7 +45,6 @@ namespace Il2CppInspectorGUI
                 // Load the metadata file
                 if (await app.LoadMetadataAsync(openFileDialog.FileName)) {
                     // Metadata loaded successfully
-                    lblMetadataVersion.DataContext = app.CurrentMetadata;
                     btnSelectBinaryFile.Visibility = Visibility.Visible;
                     btnBack.Visibility = Visibility.Visible;
                 }
@@ -75,11 +74,22 @@ namespace Il2CppInspectorGUI
 
             if (openFileDialog.ShowDialog() == true) {
                 // Load the binary file
+                if (await app.LoadBinaryAsync(openFileDialog.FileName)) {
+                    // Binary loaded successfully
+                    // TODO: Set DataContext
+                    // TODO: Format, Endianness, Bits, Arch, GlobalOffset, symbol table size, relocations size, CodeReg, MetaReg
+                    rectModalLightBoxBackground.Visibility = Visibility.Hidden;
+                }
+                else {
+                    MessageBox.Show(this, app.LastException.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
+                    btnSelectBinaryFile.Visibility = Visibility.Visible;
+                }
             }
             else {
                 btnSelectBinaryFile.Visibility = Visibility.Visible;
-                btnBack.IsEnabled = true;
             }
+
+            btnBack.IsEnabled = true;
         }
 
         /// <summary>
@@ -90,7 +100,8 @@ namespace Il2CppInspectorGUI
         private void BtnBack_OnClick(object sender, RoutedEventArgs e) {
             var app = (App) Application.Current;
 
-            lblMetadataVersion.DataContext = null;
+            rectModalLightBoxBackground.Visibility = Visibility.Visible;
+            gridImageDetails.DataContext = null;
             btnSelectBinaryFile.Visibility = Visibility.Hidden;
             btnBack.Visibility = Visibility.Hidden;
             btnSelectMetadataFile.Visibility = Visibility.Visible;