1 files changed, 61 insertions, 0 deletions

diff --git a/src/WixToolset.Core.Burn/Inscribe/InscribeBundleEngineCommand.cs b/src/WixToolset.Core.Burn/Inscribe/InscribeBundleEngineCommand.cs
new file mode 100644
index 00000000..26af056b
--- /dev/null
+++ b/src/WixToolset.Core.Burn/Inscribe/InscribeBundleEngineCommand.cs
@@ -0,0 +1,61 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.Core.Burn.Inscribe
+{
+    using System;
+    using System.IO;
+    using WixToolset.Core.Burn.Bundles;
+    using WixToolset.Extensibility;
+
+    internal class InscribeBundleEngineCommand
+    {
+        public InscribeBundleEngineCommand(IInscribeContext context)
+        {
+            this.Context = context;
+        }
+
+        private IInscribeContext Context { get; }
+
+        public bool Execute()
+        {
+            string tempFile = Path.Combine(this.Context.IntermediateFolder, "bundle_engine_unsigned.exe");
+
+            using (BurnReader reader = BurnReader.Open(this.Context.InputFilePath))
+            using (FileStream writer = File.Open(tempFile, FileMode.Create, FileAccess.Write, FileShare.Read | FileShare.Delete))
+            {
+                reader.Stream.Seek(0, SeekOrigin.Begin);
+
+                byte[] buffer = new byte[4 * 1024];
+                int total = 0;
+                int read = 0;
+                do
+                {
+                    read = Math.Min(buffer.Length, (int)reader.EngineSize - total);
+
+                    read = reader.Stream.Read(buffer, 0, read);
+                    writer.Write(buffer, 0, read);
+
+                    total += read;
+                } while (total < reader.EngineSize && 0 < read);
+
+                if (total != reader.EngineSize)
+                {
+                    throw new InvalidOperationException("Failed to copy engine out of bundle.");
+                }
+
+                // TODO: update writer with detached container signatures.
+            }
+
+            Directory.CreateDirectory(Path.GetDirectoryName(this.Context.OutputFile));
+            if (File.Exists(this.Context.OutputFile))
+            {
+                File.Delete(this.Context.OutputFile);
+            }
+
+            File.Move(tempFile, this.Context.OutputFile);
+            WixToolset.Core.Native.NativeMethods.ResetAcls(new string[] { this.Context.OutputFile }, 1);
+
+            return true;
+        }
+    }
+}