96 lines
4.0 KiB
C#
96 lines
4.0 KiB
C#
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/*
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Copyright (C) 2014-2019 de4dot@gmail.com
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This file is part of dnSpy
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dnSpy is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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dnSpy is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.Composition;
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using System.Diagnostics;
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using dnSpy.AsmEditor.Hex.PE;
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using dnSpy.Contracts.Documents;
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using dnSpy.Contracts.Documents.TreeView;
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using dnSpy.Contracts.Hex;
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using dnSpy.Contracts.Hex.Files;
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using dnSpy.Contracts.TreeView;
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namespace dnSpy.AsmEditor.Hex.Nodes {
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abstract class PETreeNodeDataProviderBase : ITreeNodeDataProvider {
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readonly Lazy<IHexBufferService> hexBufferService;
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readonly Lazy<PEStructureProviderFactory> peStructureProviderFactory;
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readonly Lazy<HexBufferFileServiceFactory> hexBufferFileServiceFactory;
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protected PETreeNodeDataProviderBase(Lazy<IHexBufferService> hexBufferService, Lazy<PEStructureProviderFactory> peStructureProviderFactory, Lazy<HexBufferFileServiceFactory> hexBufferFileServiceFactory) {
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this.hexBufferService = hexBufferService;
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this.peStructureProviderFactory = peStructureProviderFactory;
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this.hexBufferFileServiceFactory = hexBufferFileServiceFactory;
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}
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public IEnumerable<TreeNodeData> Create(TreeNodeDataProviderContext context) {
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var fileNode = context.Owner.Data as DsDocumentNode;
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Debug2.Assert(fileNode is not null);
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if (fileNode is null)
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yield break;
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bool hasPENode = HasPENode(fileNode);
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var peImage = fileNode.Document.PEImage;
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Debug2.Assert(!hasPENode || peImage is not null);
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if (hasPENode && peImage is not null) {
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Func<HexBufferFile> createBufferFile = () => {
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var buffer = hexBufferService.Value.GetOrCreate(peImage);
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var service = hexBufferFileServiceFactory.Value.Create(buffer);
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var pePosition = HexPosition.Zero;
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var bufferFile = service.GetFile(pePosition, checkNestedFiles: false);
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Debug2.Assert(bufferFile is not null, "File hasn't been created");
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return bufferFile;
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};
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yield return new PENode(createBufferFile, peStructureProviderFactory.Value);
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}
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}
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public static bool HasPENode(DsDocumentNode node) {
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if (node is null)
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return false;
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var peImage = node.Document.PEImage;
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// Only show the PE node if it was loaded from a file. The hex document is always loaded
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// from a file, so if the PEImage wasn't loaded from the same file, conversion to/from
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// RVA/FileOffset won't work and the wrong data will be displayed, eg. in the .NET
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// storage stream nodes.
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bool loadedFromFile = node.Document.Key is FilenameKey;
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return loadedFromFile && peImage is not null;
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}
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}
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[ExportTreeNodeDataProvider(Guid = DocumentTreeViewConstants.MODULE_NODE_GUID)]
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sealed class ModulePETreeNodeDataProvider : PETreeNodeDataProviderBase {
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[ImportingConstructor]
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ModulePETreeNodeDataProvider(Lazy<IHexBufferService> hexBufferService, Lazy<PEStructureProviderFactory> peStructureProviderFactory, Lazy<HexBufferFileServiceFactory> hexBufferFileServiceFactory)
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: base(hexBufferService, peStructureProviderFactory, hexBufferFileServiceFactory) {
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}
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}
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[ExportTreeNodeDataProvider(Guid = DocumentTreeViewConstants.PEDOCUMENT_NODE_GUID)]
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sealed class PEFilePETreeNodeDataProvider : PETreeNodeDataProviderBase {
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[ImportingConstructor]
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PEFilePETreeNodeDataProvider(Lazy<IHexBufferService> hexBufferService, Lazy<PEStructureProviderFactory> peStructureProviderFactory, Lazy<HexBufferFileServiceFactory> hexBufferFileServiceFactory)
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: base(hexBufferService, peStructureProviderFactory, hexBufferFileServiceFactory) {
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}
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}
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}
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