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preliminary implementation of ARCV data format

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This commit is contained in:
Michael Becker 2020-08-13 22:20:05 -04:00
parent db6d026abe
commit ad6d7dbbf0
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4 changed files with 143 additions and 0 deletions
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25
Content/UniversalEditor.Content.PlatformIndependent/Extensions/FileSystem/Associations/ARCV.uexml Normal file
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<?xml version="1.0" encoding="utf-8" ?>
<UniversalEditor Version="4.0">
<Associations>
<Association>
<Filters>
<Filter Title="ARCV archive">
<FileNameFilters>
<FileNameFilter>*.$00</FileNameFilter>
</FileNameFilters>
<MagicByteSequences>
<MagicByteSequence>
<MagicByte Type="String">ARCV</MagicByte>
</MagicByteSequence>
</MagicByteSequences>
</Filter>
</Filters>
<ObjectModels>
<ObjectModel TypeName="UniversalEditor.ObjectModels.FileSystem.FileSystemObjectModel" />
</ObjectModels>
<DataFormats>
<DataFormat TypeName="UniversalEditor.DataFormats.FileSystem.ARCV.ARCVDataFormat" />
</DataFormats>
</Association>
</Associations>
</UniversalEditor>

1
Content/UniversalEditor.Content.PlatformIndependent/UniversalEditor.Content.PlatformIndependent.csproj
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@ -575,6 +575,7 @@
<Content Include="Editors\Markup\Commands.uexml" />
<Content Include="Extensions\Microsoft\Associations\OLE1.uexml" />
<Content Include="Extensions\FileSystem\Associations\Microsoft\NTFS.uexml" />
<Content Include="Extensions\FileSystem\Associations\ARCV.uexml" />
<Content Include="Editors\Setup\BootstrapScript\BootstrapScriptEditor.glade" />
<Content Include="Editors\Database\Commands.uexml" />
<Content Include="Editors\Database\Views\ScriptView.glade" />

115
Plugins/UniversalEditor.Plugins.FileSystem/DataFormats/FileSystem/ARCV/ARCVDataFormat.cs Normal file
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//
// ARCVDataFormat.cs - provides a DataFormat for manipulating compressed files in ARCV format
//
// Author:
// Michael Becker <alcexhim@gmail.com>
//
// Copyright (c) 2020 Mike Becker's Software
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
using UniversalEditor.IO;
using UniversalEditor.ObjectModels.FileSystem;
namespace UniversalEditor.DataFormats.FileSystem.ARCV
{
/// <summary>
/// Provides a <see cref="DataFormat" /> for manipulating compressed files in ARCV format.
/// </summary>
public class ARCVDataFormat : DataFormat
{
private static DataFormatReference _dfr = null;
protected override DataFormatReference MakeReferenceInternal()
{
if (_dfr == null)
{
_dfr = base.MakeReferenceInternal();
_dfr.Capabilities.Add(typeof(FileSystemObjectModel), DataFormatCapabilities.All);
}
return _dfr;
}
protected override void LoadInternal(ref ObjectModel objectModel)
{
FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
if (fsom == null)
throw new ObjectModelNotSupportedException();
Reader reader = Accessor.Reader;
string signature = reader.ReadFixedLengthString(4);
if (signature != "ARCV")
throw new InvalidDataFormatException("file does not begin with 'ARCV'");
uint unknown1 = reader.ReadUInt32();
uint unknown2 = reader.ReadUInt32();
string filename = reader.ReadLengthPrefixedString();
uint decompressedLength = reader.ReadUInt32();
uint compressedLength = reader.ReadUInt32();
uint unknown5 = reader.ReadUInt32();
uint unknown6_maybeChecksum = reader.ReadUInt32();
uint reserved1 = reader.ReadUInt32();
uint reserved2 = reader.ReadUInt32();
ushort unknown7 = reader.ReadUInt16();
uint unknown8 = reader.ReadUInt32();
uint unknown9 = reader.ReadUInt32();
string chnk = reader.ReadFixedLengthString(4);
if (chnk != "CHNK")
{
throw new InvalidDataFormatException();
}
uint unknown11 = reader.ReadUInt32();
uint unknown12 = reader.ReadUInt32();
uint unknown13 = reader.ReadUInt32();
File f = fsom.AddFile(filename);
f.Properties["reader"] = reader;
f.Properties["offset"] = Accessor.Position;
f.Properties["compressedLength"] = compressedLength;
f.Properties["decompressedLength"] = decompressedLength;
f.Size = decompressedLength;
f.DataRequest += F_DataRequest;
}
void F_DataRequest(object sender, DataRequestEventArgs e)
{
File f = (sender as File);
Reader reader = (Reader)f.Properties["reader"];
long offset = (long)f.Properties["offset"];
uint compressedLength = (uint)f.Properties["compressedLength"];
uint decompressedLength = (uint)f.Properties["decompressedLength"];
reader.Seek(offset, SeekOrigin.Begin);
byte[] compressedData = reader.ReadBytes(compressedLength);
byte[] decompressedData = compressedData; // TODO: decompress the data
e.Data = decompressedData;
}
protected override void SaveInternal(ObjectModel objectModel)
{
FileSystemObjectModel fsom = (objectModel as FileSystemObjectModel);
if (fsom == null)
throw new ObjectModelNotSupportedException();
throw new System.NotImplementedException();
}
}
}

2
Plugins/UniversalEditor.Plugins.FileSystem/UniversalEditor.Plugins.FileSystem.csproj
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@ -251,6 +251,7 @@
<Compile Include="DataFormats\FileSystem\WinRAR\VM\RAROpcodeFlags.cs" />
<Compile Include="DataFormats\FileSystem\WinRAR\VM\RARVMFunctions.cs" />
<Compile Include="DataFormats\FileSystem\BPlus\BPlusFileFlags.cs" />
<Compile Include="DataFormats\FileSystem\ARCV\ARCVDataFormat.cs" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\Libraries\UniversalEditor.Core\UniversalEditor.Core.csproj">
@ -300,6 +301,7 @@
<Folder Include="DataFormats\FileSystem\WinRAR\V4\" />
<Folder Include="DataFormats\FileSystem\WinRAR\Blocks\" />
<Folder Include="DataFormats\FileSystem\WinRAR\VM\" />
<Folder Include="DataFormats\FileSystem\ARCV\" />
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.