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[Constants, Utilities] Magic!

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This commit is contained in:
Matt Nadareski
2018-02-16 01:20:17 -08:00
parent c1e612395f
commit 96d6859ca5
2 changed files with 50 additions and 14 deletions
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30
SabreTools.Library/Data/Constants.cs
View File

@@ -502,16 +502,26 @@ namespace SabreTools.Library.Data
#region Magic numbers
public static readonly byte[] SevenZipSignature = { 0x37, 0x7a, 0xbc, 0xaf, 0x27, 0x1c };
public readonly static byte[] CHDSignature = { 0x4d, 0x43, 0x6f, 0x6d, 0x70, 0x72, 0x48, 0x44 };
public static readonly byte[] GzSignature = { 0x1f, 0x8b };
public static readonly byte[] RarSignature = { 0x52, 0x61, 0x72, 0x21, 0x1a, 0x07, 0x00 };
public static readonly byte[] RarFiveSignature = { 0x52, 0x61, 0x72, 0x21, 0x1a, 0x07, 0x01, 0x00 };
public static readonly byte[] TarSignature = { 0x75, 0x73, 0x74, 0x61, 0x72, 0x20, 0x20, 0x00 };
public static readonly byte[] TarZeroSignature = { 0x75, 0x73, 0x74, 0x61, 0x72, 0x00, 0x30, 0x30 };
public static readonly byte[] ZipSignature = { 0x50, 0x4b, 0x03, 0x04 };
public static readonly byte[] ZipSignatureEmpty = { 0x50, 0x4b, 0x05, 0x06 };
public static readonly byte[] ZipSignatureSpanned = { 0x50, 0x4b, 0x07, 0x08 };
public static readonly byte[] SevenZipSignature = { 0x37, 0x7a, 0xbc, 0xaf, 0x27, 0x1c };
public static readonly byte[] BZ2Signature = { 0x42, 0x5a, 0x68 };
public static readonly byte[] CabinetSignature = { 0x4d, 0x53, 0x43, 0x46 };
public static readonly byte[] CHDSignature = { 0x4d, 0x43, 0x6f, 0x6d, 0x70, 0x72, 0x48, 0x44 };
public static readonly byte[] ELFSignature = { 0x7f, 0x45, 0x4c, 0x46 };
public static readonly byte[] GzSignature = { 0x1f, 0x8b };
public static readonly byte[] LRZipSignature = { 0x4c, 0x52, 0x5a, 0x49 };
public static readonly byte[] LZ4Signature = { 0x18, 0x4d, 0x22, 0x04 };
public static readonly byte[] LZ4SkippableMinSignature = { 0x18, 0x4d, 0x22, 0x04 };
public static readonly byte[] LZ4SkippableMaxSignature = { 0x18, 0x4d, 0x2a, 0x5f };
public static readonly byte[] RarSignature = { 0x52, 0x61, 0x72, 0x21, 0x1a, 0x07, 0x00 };
public static readonly byte[] RarFiveSignature = { 0x52, 0x61, 0x72, 0x21, 0x1a, 0x07, 0x01, 0x00 };
public static readonly byte[] TarSignature = { 0x75, 0x73, 0x74, 0x61, 0x72, 0x20, 0x20, 0x00 };
public static readonly byte[] TarZeroSignature = { 0x75, 0x73, 0x74, 0x61, 0x72, 0x00, 0x30, 0x30 };
public static readonly byte[] XZSignature = { 0xfd, 0x37, 0x7a, 0x58, 0x5a, 0x00, 0x00 };
public static readonly byte[] ZipSignature = { 0x50, 0x4b, 0x03, 0x04 };
public static readonly byte[] ZipSignatureEmpty = { 0x50, 0x4b, 0x05, 0x06 };
public static readonly byte[] ZipSignatureSpanned = { 0x50, 0x4b, 0x07, 0x08 };
public static readonly byte[] ZPAQSignature = { 0x7a, 0x50, 0x51 };
public static readonly byte[] ZstdSignature = { 0xfd, 0x2f, 0xb5 };
#endregion

34
SabreTools.Library/Tools/Utilities.cs
View File

@@ -473,7 +473,7 @@ namespace SabreTools.Library.Tools
archive = new TorrentZipArchive(input);
break;
default:
// We ignore these types for now
// We ignore all other types for now
break;
}
@@ -1339,18 +1339,44 @@ namespace SabreTools.Library.Tools
{
outFileType = FileType.GZipArchive;
}
else if (magic.StartsWith(Constants.RarSignature) || magic.StartsWith(Constants.RarFiveSignature))
else if (magic.StartsWith(Constants.LRZipSignature))
{
outFileType = FileType.LRZipArchive;
}
else if (magic.StartsWith(Constants.LZ4Signature)
|| magic.StartsWith(Constants.LZ4SkippableMinSignature)
|| magic.StartsWith(Constants.LZ4SkippableMaxSignature))
{
outFileType = FileType.LZ4Archive;
}
else if (magic.StartsWith(Constants.RarSignature)
|| magic.StartsWith(Constants.RarFiveSignature))
{
outFileType = FileType.RarArchive;
}
else if (magic.StartsWith(Constants.TarSignature) || magic.StartsWith(Constants.TarZeroSignature))
else if (magic.StartsWith(Constants.TarSignature)
|| magic.StartsWith(Constants.TarZeroSignature))
{
outFileType = FileType.TapeArchive;
}
else if (magic.StartsWith(Constants.ZipSignature) || magic.StartsWith(Constants.ZipSignatureEmpty) || magic.StartsWith(Constants.ZipSignatureSpanned))
else if (magic.StartsWith(Constants.XZSignature))
{
outFileType = FileType.XZArchive;
}
else if (magic.StartsWith(Constants.ZipSignature)
|| magic.StartsWith(Constants.ZipSignatureEmpty)
|| magic.StartsWith(Constants.ZipSignatureSpanned))
{
outFileType = FileType.ZipArchive;
}
else if (magic.StartsWith(Constants.ZPAQSignature))
{
outFileType = FileType.ZPAQArchive;
}
else if (magic.StartsWith(Constants.ZstdSignature))
{
outFileType = FileType.ZstdArchive;
}
}
catch (Exception)
{