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// 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.WindowsInstaller.Decompile
{
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Linq;
using WixToolset.Core.Native.Msi;
using WixToolset.Core.WindowsInstaller.Unbind;
using WixToolset.Data;
using WixToolset.Data.WindowsInstaller;
using WixToolset.Extensibility;
using WixToolset.Extensibility.Data;
using WixToolset.Extensibility.Services;
internal class DecompileMsiOrMsmCommand
{
public DecompileMsiOrMsmCommand(IDecompileContext context, IEnumerable<IWindowsInstallerBackendDecompilerExtension> backendExtensions)
{
this.Context = context;
this.Extensions = backendExtensions;
this.Messaging = context.ServiceProvider.GetService<IMessaging>();
}
private IDecompileContext Context { get; }
private IEnumerable<IWindowsInstallerBackendDecompilerExtension> Extensions { get; }
private IMessaging Messaging { get; }
public IDecompileResult Execute()
{
var result = this.Context.ServiceProvider.GetService<IDecompileResult>();
try
{
using (var database = new Database(this.Context.DecompilePath, OpenDatabase.ReadOnly))
{
// Delete the directory and its files to prevent cab extraction failure due to an existing file.
if (Directory.Exists(this.Context.ExtractFolder))
{
Directory.Delete(this.Context.ExtractFolder, true);
}
var backendHelper = this.Context.ServiceProvider.GetService<IBackendHelper>();
var unbindCommand = new UnbindDatabaseCommand(this.Messaging, backendHelper, database, this.Context.DecompilePath, this.Context.DecompileType, this.Context.ExtractFolder, this.Context.IntermediateFolder, this.Context.IsAdminImage, suppressDemodularization: false, skipSummaryInfo: false);
var output = unbindCommand.Execute();
var extractedFilePaths = new List<string>(unbindCommand.ExportedFiles);
var decompiler = new Decompiler(this.Messaging, backendHelper, this.Extensions, this.Context.BaseSourcePath, this.Context.SuppressCustomTables, this.Context.SuppressDroppingEmptyTables, this.Context.SuppressUI, this.Context.TreatProductAsModule);
result.Document = decompiler.Decompile(output);
result.Platform = GetPlatformFromOutput(output);
// extract the files from the cabinets
if (!String.IsNullOrEmpty(this.Context.ExtractFolder) && !this.Context.SuppressExtractCabinets)
{
var fileDirectory = String.IsNullOrEmpty(this.Context.CabinetExtractFolder) ? Path.Combine(this.Context.ExtractFolder, "File") : this.Context.CabinetExtractFolder;
var extractCommand = new ExtractCabinetsCommand(output, database, this.Context.DecompilePath, fileDirectory, this.Context.IntermediateFolder, this.Context.TreatProductAsModule);
extractCommand.Execute();
extractedFilePaths.AddRange(extractCommand.ExtractedFiles);
result.ExtractedFilePaths = extractedFilePaths;
}
else
{
result.ExtractedFilePaths = new string[0];
}
}
}
catch (Win32Exception e)
{
if (0x6E == e.NativeErrorCode) // ERROR_OPEN_FAILED
{
throw new WixException(ErrorMessages.OpenDatabaseFailed(this.Context.DecompilePath));
}
throw;
}
return result;
}
private static Platform? GetPlatformFromOutput(WindowsInstallerData output)
{
var template = output.Tables["_SummaryInformation"]?.Rows.SingleOrDefault(row => row.FieldAsInteger(0) == 7)?.FieldAsString(1);
return Decompiler.GetPlatformFromTemplateSummaryInformation(template?.Split(';'));
}
}
}
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