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https://github.com/aaru-dps/Aaru.Server.git
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Natalia Portillo
6754a040ea
* README.md: * docs/AppleSingle_AppleDouble_v2.pdf: * docs/AppleSingle_AppleDouble_v1.pdf: * DiscImageChef.Filters/AppleSingle.cs: * DiscImageChef.Filters/AppleDouble.cs: * DiscImageChef.Helpers/DateHandlers.cs: * DiscImageChef.Filters/DiscImageChef.Filters.csproj: Added AppleSingle and AppleDouble filters. * DiscImageChef.DiscImages/CDRWin.cs: Show correct filename from filter.
509 lines
21 KiB
C#
509 lines
21 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : AppleSingle.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Component
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Provides a filter to open AppleSingle files.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2016 Natalia Portillo
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// ****************************************************************************/
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using System;
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using System.IO;
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using System.Runtime.InteropServices;
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using System.Linq;
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namespace DiscImageChef.Filters
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{
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public class AppleSingle : Filter
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{
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enum AppleSingleEntryID : uint
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{
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Invalid = 0,
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DataFork = 1,
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ResourceFork = 2,
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RealName = 3,
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Comment = 4,
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Icon = 5,
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ColorIcon = 6,
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FileInfo = 7,
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FileDates = 8,
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FinderInfo = 9,
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MacFileInfo = 10,
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ProDOSFileInfo = 11,
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DOSFileInfo = 12,
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ShortName = 13,
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AFPFileInfo = 14,
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DirectoryID = 15
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct AppleSingleHeader
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{
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public uint magic;
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public uint version;
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[MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)]
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public byte[] homeFilesystem;
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public ushort entries;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct AppleSingleEntry
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{
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public uint id;
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public uint offset;
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public uint length;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct AppleSingleFileDates
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{
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public uint creationDate;
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public uint modificationDate;
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public uint backupDate;
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public uint accessDate;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct AppleSingleMacFileInfo
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{
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public uint creationDate;
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public uint modificationDate;
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public uint backupDate;
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public uint accessDate;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct AppleSingleUNIXFileInfo
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{
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public uint creationDate;
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public uint accessDate;
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public uint modificationDate;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct AppleSingleDOSFileInfo
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{
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public ushort modificationDate;
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public ushort modificationTime;
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public ushort attributes;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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struct AppleSingleProDOSFileInfo
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{
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public uint creationDate;
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public uint modificationDate;
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public uint backupDate;
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public ushort access;
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public ushort fileType;
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public uint auxType;
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}
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const uint AppleSingleMagic = 0x00051600;
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const uint AppleSingleVersion = 0x00010000;
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const uint AppleSingleVersion2 = 0x00020000;
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readonly byte[] MacintoshHome = { 0x4D, 0x61, 0x63, 0x69, 0x6E, 0x74, 0x6F, 0x73, 0x68, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
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readonly byte[] ProDOSHome = { 0x50, 0x72, 0x6F, 0x44, 0x4F, 0x53, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
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readonly byte[] DOSHome = { 0x4D, 0x53, 0x2D, 0x44, 0x4F, 0x53, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
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readonly byte[] UNIXHome = { 0x55, 0x6E, 0x69, 0x78, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
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readonly byte[] VMXHome = { 0x56, 0x41, 0x58, 0x20, 0x56, 0x4D, 0x53, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
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readonly byte[] OSXHome = { 0x4D, 0x61, 0x63, 0x20, 0x4F, 0x53, 0x20, 0x58, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
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AppleSingleEntry dataFork;
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AppleSingleEntry rsrcFork;
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byte[] bytes;
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Stream stream;
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bool isBytes, isStream, isPath, opened;
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string basePath;
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DateTime lastWriteTime;
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DateTime creationTime;
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AppleSingleHeader header;
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public AppleSingle()
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{
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Name = "AppleSingle";
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UUID = new Guid("A69B20E8-F4D3-42BB-BD2B-4A7263394A05");
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}
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public override void Close()
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{
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bytes = null;
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if(stream != null)
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stream.Close();
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isBytes = false;
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isStream = false;
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isPath = false;
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opened = false;
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}
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public override string GetBasePath()
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{
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return basePath;
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}
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public override DateTime GetCreationTime()
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{
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return creationTime;
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}
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public override long GetDataForkLength()
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{
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return dataFork.length;
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}
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public override Stream GetDataForkStream()
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{
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if(dataFork.length == 0)
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return null;
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if(isBytes)
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return new OffsetStream(bytes, dataFork.offset, dataFork.offset + dataFork.length - 1);
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if(isStream)
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return new OffsetStream(stream, dataFork.offset, dataFork.offset + dataFork.length - 1);
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if(isPath)
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return new OffsetStream(basePath, FileMode.Open, FileAccess.Read, dataFork.offset, dataFork.offset + dataFork.length - 1);
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return null;
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}
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public override string GetFilename()
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{
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return basePath != null ? Path.GetFileName(basePath) : null;
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}
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public override DateTime GetLastWriteTime()
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{
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return lastWriteTime;
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}
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public override long GetLength()
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{
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return dataFork.length + rsrcFork.length;
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}
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public override string GetParentFolder()
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{
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return Path.GetDirectoryName(basePath);
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}
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public override string GetPath()
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{
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return basePath;
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}
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public override long GetResourceForkLength()
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{
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return rsrcFork.length;
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}
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public override Stream GetResourceForkStream()
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{
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if(rsrcFork.length == 0)
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return null;
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if(isBytes)
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return new OffsetStream(bytes, rsrcFork.offset, rsrcFork.offset + rsrcFork.length - 1);
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if(isStream)
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return new OffsetStream(stream, rsrcFork.offset, rsrcFork.offset + rsrcFork.length - 1);
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if(isPath)
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return new OffsetStream(basePath, FileMode.Open, FileAccess.Read, rsrcFork.offset, rsrcFork.offset + rsrcFork.length - 1);
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return null;
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}
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public override bool HasResourceFork()
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{
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return rsrcFork.length > 0;
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}
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public override bool Identify(byte[] buffer)
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{
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if(buffer == null || buffer.Length < 26)
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return false;
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byte[] hdr_b = new byte[26];
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Array.Copy(buffer, 0, hdr_b, 0, 26);
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header = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleHeader>(hdr_b);
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return header.magic == AppleSingleMagic && (header.version == AppleSingleVersion || header.version == AppleSingleVersion2);
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}
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public override bool Identify(Stream stream)
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{
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if(stream == null || stream.Length < 26)
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return false;
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byte[] hdr_b = new byte[26];
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stream.Seek(0, SeekOrigin.Begin);
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stream.Read(hdr_b, 0, 26);
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header = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleHeader>(hdr_b);
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return header.magic == AppleSingleMagic && (header.version == AppleSingleVersion || header.version == AppleSingleVersion2);
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}
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public override bool Identify(string path)
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{
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FileStream fstream = new FileStream(path, FileMode.Open, FileAccess.Read);
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if(fstream == null || fstream.Length < 26)
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return false;
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byte[] hdr_b = new byte[26];
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fstream.Read(hdr_b, 0, 26);
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header = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleHeader>(hdr_b);
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fstream.Close();
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return header.magic == AppleSingleMagic && (header.version == AppleSingleVersion || header.version == AppleSingleVersion2);
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}
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public override bool IsOpened()
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{
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return opened;
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}
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public override void Open(byte[] buffer)
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{
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MemoryStream ms = new MemoryStream(buffer);
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ms.Seek(0, SeekOrigin.Begin);
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byte[] hdr_b = new byte[26];
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ms.Read(hdr_b, 0, 26);
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header = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleHeader>(hdr_b);
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AppleSingleEntry[] entries = new AppleSingleEntry[header.entries];
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for(int i = 0; i < header.entries; i++)
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{
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byte[] entry = new byte[12];
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ms.Read(entry, 0, 12);
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entries[i] = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleEntry>(entry);
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}
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creationTime = DateTime.UtcNow;
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lastWriteTime = creationTime;
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foreach(AppleSingleEntry entry in entries)
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{
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switch((AppleSingleEntryID)entry.id)
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{
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case AppleSingleEntryID.DataFork:
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dataFork = entry;
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break;
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case AppleSingleEntryID.FileDates:
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ms.Seek(entry.offset, SeekOrigin.Begin);
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byte[] dates_b = new byte[16];
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ms.Read(dates_b, 0, 16);
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AppleSingleFileDates dates = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleFileDates>(dates_b);
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creationTime = DateHandlers.AppleDoubleToDateTime(dates.creationDate);
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lastWriteTime = DateHandlers.AppleDoubleToDateTime(dates.modificationDate);
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break;
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case AppleSingleEntryID.FileInfo:
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ms.Seek(entry.offset, SeekOrigin.Begin);
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byte[] finfo = new byte[entry.length];
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ms.Read(finfo, 0, finfo.Length);
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if(MacintoshHome.SequenceEqual(header.homeFilesystem))
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{
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AppleSingleMacFileInfo macinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleMacFileInfo>(finfo);
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creationTime = DateHandlers.MacToDateTime(macinfo.creationDate);
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lastWriteTime = DateHandlers.MacToDateTime(macinfo.modificationDate);
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}
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else if(ProDOSHome.SequenceEqual(header.homeFilesystem))
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{
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AppleSingleProDOSFileInfo prodosinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleProDOSFileInfo>(finfo);
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creationTime = DateHandlers.MacToDateTime(prodosinfo.creationDate);
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lastWriteTime = DateHandlers.MacToDateTime(prodosinfo.modificationDate);
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}
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else if(UNIXHome.SequenceEqual(header.homeFilesystem))
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{
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AppleSingleUNIXFileInfo unixinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleUNIXFileInfo>(finfo);
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creationTime = DateHandlers.UNIXUnsignedToDateTime(unixinfo.creationDate);
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lastWriteTime = DateHandlers.UNIXUnsignedToDateTime(unixinfo.modificationDate);
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}
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else if(DOSHome.SequenceEqual(header.homeFilesystem))
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{
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AppleSingleDOSFileInfo dosinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleDOSFileInfo>(finfo);
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lastWriteTime = DateHandlers.DOSToDateTime(dosinfo.modificationDate, dosinfo.modificationTime);
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}
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break;
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case AppleSingleEntryID.ResourceFork:
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rsrcFork = entry;
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break;
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}
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}
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ms.Close();
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opened = true;
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isBytes = true;
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bytes = buffer;
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}
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public override void Open(Stream stream)
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{
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stream.Seek(0, SeekOrigin.Begin);
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byte[] hdr_b = new byte[26];
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stream.Read(hdr_b, 0, 26);
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header = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleHeader>(hdr_b);
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AppleSingleEntry[] entries = new AppleSingleEntry[header.entries];
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for(int i = 0; i < header.entries; i++)
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{
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byte[] entry = new byte[12];
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stream.Read(entry, 0, 12);
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entries[i] = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleEntry>(entry);
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}
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creationTime = DateTime.UtcNow;
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lastWriteTime = creationTime;
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foreach(AppleSingleEntry entry in entries)
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{
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switch((AppleSingleEntryID)entry.id)
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{
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case AppleSingleEntryID.DataFork:
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dataFork = entry;
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break;
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case AppleSingleEntryID.FileDates:
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stream.Seek(entry.offset, SeekOrigin.Begin);
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byte[] dates_b = new byte[16];
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stream.Read(dates_b, 0, 16);
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AppleSingleFileDates dates = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleFileDates>(dates_b);
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creationTime = DateHandlers.MacToDateTime(dates.creationDate);
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lastWriteTime = DateHandlers.MacToDateTime(dates.modificationDate);
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break;
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case AppleSingleEntryID.FileInfo:
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stream.Seek(entry.offset, SeekOrigin.Begin);
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byte[] finfo = new byte[entry.length];
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stream.Read(finfo, 0, finfo.Length);
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if(MacintoshHome.SequenceEqual(header.homeFilesystem))
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{
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AppleSingleMacFileInfo macinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleMacFileInfo>(finfo);
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creationTime = DateHandlers.MacToDateTime(macinfo.creationDate);
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lastWriteTime = DateHandlers.MacToDateTime(macinfo.modificationDate);
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}
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else if(ProDOSHome.SequenceEqual(header.homeFilesystem))
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{
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AppleSingleProDOSFileInfo prodosinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleProDOSFileInfo>(finfo);
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creationTime = DateHandlers.MacToDateTime(prodosinfo.creationDate);
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lastWriteTime = DateHandlers.MacToDateTime(prodosinfo.modificationDate);
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}
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else if(UNIXHome.SequenceEqual(header.homeFilesystem))
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{
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AppleSingleUNIXFileInfo unixinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleUNIXFileInfo>(finfo);
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creationTime = DateHandlers.UNIXUnsignedToDateTime(unixinfo.creationDate);
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lastWriteTime = DateHandlers.UNIXUnsignedToDateTime(unixinfo.modificationDate);
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}
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else if(DOSHome.SequenceEqual(header.homeFilesystem))
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{
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AppleSingleDOSFileInfo dosinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleDOSFileInfo>(finfo);
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lastWriteTime = DateHandlers.DOSToDateTime(dosinfo.modificationDate, dosinfo.modificationTime);
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}
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break;
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case AppleSingleEntryID.ResourceFork:
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rsrcFork = entry;
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break;
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}
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}
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stream.Seek(0, SeekOrigin.Begin);
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opened = true;
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isStream = true;
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this.stream = stream;
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}
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public override void Open(string path)
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{
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FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read);
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fs.Seek(0, SeekOrigin.Begin);
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byte[] hdr_b = new byte[26];
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fs.Read(hdr_b, 0, 26);
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header = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleHeader>(hdr_b);
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AppleSingleEntry[] entries = new AppleSingleEntry[header.entries];
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for(int i = 0; i < header.entries; i++)
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{
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byte[] entry = new byte[12];
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fs.Read(entry, 0, 12);
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entries[i] = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleEntry>(entry);
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}
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creationTime = DateTime.UtcNow;
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lastWriteTime = creationTime;
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foreach(AppleSingleEntry entry in entries)
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{
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switch((AppleSingleEntryID)entry.id)
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{
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case AppleSingleEntryID.DataFork:
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dataFork = entry;
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break;
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case AppleSingleEntryID.FileDates:
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fs.Seek(entry.offset, SeekOrigin.Begin);
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byte[] dates_b = new byte[16];
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fs.Read(dates_b, 0, 16);
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AppleSingleFileDates dates = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleFileDates>(dates_b);
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creationTime = DateHandlers.MacToDateTime(dates.creationDate);
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lastWriteTime = DateHandlers.MacToDateTime(dates.modificationDate);
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break;
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case AppleSingleEntryID.FileInfo:
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fs.Seek(entry.offset, SeekOrigin.Begin);
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byte[] finfo = new byte[entry.length];
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fs.Read(finfo, 0, finfo.Length);
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if(MacintoshHome.SequenceEqual(header.homeFilesystem))
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{
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AppleSingleMacFileInfo macinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleMacFileInfo>(finfo);
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creationTime = DateHandlers.MacToDateTime(macinfo.creationDate);
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lastWriteTime = DateHandlers.MacToDateTime(macinfo.modificationDate);
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}
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else if(ProDOSHome.SequenceEqual(header.homeFilesystem))
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{
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AppleSingleProDOSFileInfo prodosinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleProDOSFileInfo>(finfo);
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creationTime = DateHandlers.MacToDateTime(prodosinfo.creationDate);
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lastWriteTime = DateHandlers.MacToDateTime(prodosinfo.modificationDate);
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}
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else if(UNIXHome.SequenceEqual(header.homeFilesystem))
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{
|
|
AppleSingleUNIXFileInfo unixinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleUNIXFileInfo>(finfo);
|
|
creationTime = DateHandlers.UNIXUnsignedToDateTime(unixinfo.creationDate);
|
|
lastWriteTime = DateHandlers.UNIXUnsignedToDateTime(unixinfo.modificationDate);
|
|
}
|
|
else if(DOSHome.SequenceEqual(header.homeFilesystem))
|
|
{
|
|
AppleSingleDOSFileInfo dosinfo = BigEndianMarshal.ByteArrayToStructureBigEndian<AppleSingleDOSFileInfo>(finfo);
|
|
lastWriteTime = DateHandlers.DOSToDateTime(dosinfo.modificationDate, dosinfo.modificationTime);
|
|
}
|
|
break;
|
|
case AppleSingleEntryID.ResourceFork:
|
|
rsrcFork = entry;
|
|
break;
|
|
}
|
|
}
|
|
|
|
fs.Close();
|
|
opened = true;
|
|
isPath = true;
|
|
basePath = path;
|
|
}
|
|
}
|
|
}
|
|
|