mirror of
https://github.com/claunia/SabreTools.git
synced 2025-12-16 19:14:27 +00:00
168 lines
6.4 KiB
C#
168 lines
6.4 KiB
C#
using System;
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using System.Reflection;
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using SabreTools.Library.Tools;
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namespace SabreTools.Library.Data
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{
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/// <summary>
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/// Constants that are used throughout the library
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/// </summary>
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public static class Constants
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{
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/// <summary>
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/// The current toolset version to be used by all child applications
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/// </summary>
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public readonly static string Version = "v0.9.8.1-" + Assembly.GetExecutingAssembly().GetLinkerTime().ToString("yyyy-MM-dd HH:mm:ss");
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public const int HeaderHeight = 3;
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#region 0-byte file constants
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public const long SizeZero = 0;
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public const string CRCZero = "00000000";
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public const string MD5Zero = "d41d8cd98f00b204e9800998ecf8427e";
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public const string SHA1Zero = "da39a3ee5e6b4b0d3255bfef95601890afd80709";
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public const string SHA256Zero = "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad";
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public const string SHA384Zero = "cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed8086072ba1e7cc2358baeca134c825a7";
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public const string SHA512Zero = "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f";
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#endregion
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#region Byte (1000-based) size comparisons
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public const long KiloByte = 1000;
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public readonly static long MegaByte = (long)Math.Pow(KiloByte, 2);
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public readonly static long GigaByte = (long)Math.Pow(KiloByte, 3);
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public readonly static long TeraByte = (long)Math.Pow(KiloByte, 4);
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public readonly static long PetaByte = (long)Math.Pow(KiloByte, 5);
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public readonly static long ExaByte = (long)Math.Pow(KiloByte, 6);
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public readonly static long ZettaByte = (long)Math.Pow(KiloByte, 7);
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public readonly static long YottaByte = (long)Math.Pow(KiloByte, 8);
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#endregion
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#region Byte (1024-based) size comparisons
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public const long KibiByte = 1024;
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public readonly static long MibiByte = (long)Math.Pow(KibiByte, 2);
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public readonly static long GibiByte = (long)Math.Pow(KibiByte, 3);
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public readonly static long TibiByte = (long)Math.Pow(KibiByte, 4);
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public readonly static long PibiByte = (long)Math.Pow(KibiByte, 5);
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public readonly static long ExiByte = (long)Math.Pow(KibiByte, 6);
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public readonly static long ZittiByte = (long)Math.Pow(KibiByte, 7);
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public readonly static long YittiByte = (long)Math.Pow(KibiByte, 8);
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#endregion
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#region CHD header values
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public readonly static byte[] CHDSignature = { 0x4d, 0x43, 0x6f, 0x6d, 0x70, 0x72, 0x48, 0x44 }; // "MComprHD"
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public const int CHD_HEADER_VERSION = 5;
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public const int CHD_V3_HEADER_SIZE = 120;
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public const int CHD_V4_HEADER_SIZE = 108;
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public const int CHD_V5_HEADER_SIZE = 124;
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#endregion
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#region Database schema
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public const string HeadererDbSchema = "Headerer";
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public const string HeadererFileName = "Headerer.sqlite";
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public const string HeadererConnectionString = "Data Source=" + HeadererFileName + ";Version = 3;";
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#endregion
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#region Hash string length constants
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public const int CRCLength = 8;
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public const int MD5Length = 32;
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public const int SHA1Length = 40;
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public const int SHA256Length = 64;
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public const int SHA384Length = 96;
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public const int SHA512Length = 128;
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#endregion
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#region Magic numbers as strings
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public const string SevenZipSig = "377ABCAF271C";
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public const string GzSig = "1F8B";
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public const string RarSig = "526172211A0700";
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public const string RarFiveSig = "526172211A070100";
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public const string TarSig = "7573746172202000";
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public const string TarZeroSig = "7573746172003030";
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public const string ZipSig = "504B0304";
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public const string ZipSigEmpty = "504B0506";
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public const string ZipSigSpanned = "504B0708";
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#endregion
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#region Regular Expressions
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public const string XmlPattern = @"<(.*?)>(.*?)</(.*?)>";
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public const string HeaderPatternCMP = @"(^.*?) \($";
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public const string ItemPatternCMP = @"^\s*(\S*?) (.*)";
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public const string EndPatternCMP = @"^\s*\)\s*$";
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#endregion
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#region TorrentZip, T7z, and TGZ headers
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/* TorrentZip Header Format
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https://pkware.cachefly.net/webdocs/APPNOTE/APPNOTE_6.2.0.txt
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http://www.romvault.com/trrntzip_explained.doc
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00-03 Local file header signature (0x50, 0x4B, 0x03, 0x04)
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04-05 Version needed to extract (0x14, 0x00)
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06-07 General purpose bit flag (0x02, 0x00)
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08-09 Compression method (0x08, 0x00)
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0A-0B Last mod file time (0x00, 0xBC)
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0C-0D Last mod file date (0x98, 0x21)
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*/
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public readonly static byte[] TorrentZipHeader = new byte[] { 0x50, 0x4b, 0x03, 0x04, 0x14, 0x00, 0x02, 0x00, 0x08, 0x00, 0x00, 0xbc, 0x98, 0x21 };
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/* Torrent7z Header Format
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http://cpansearch.perl.org/src/BJOERN/Compress-Deflate7-1.0/7zip/DOC/7zFormat.txt
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00-05 Local file header signature (0x37, 0x7A, 0xBC, 0xAF, 0x27, 0x1C)
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06-07 ArchiveVersion (0x00, 0x03)
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The rest is unknown
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*/
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public readonly static byte[] Torrent7ZipHeader = new byte[] { 0x37, 0x7a, 0xbc, 0xaf, 0x27, 0x1c, 0x00, 0x03 };
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public readonly static byte[] Torrent7ZipSignature = new byte[] { 0xa9, 0xa9, 0x9f, 0xd1, 0x57, 0x08, 0xa9, 0xd7, 0xea, 0x29, 0x64, 0xb2,
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0x36, 0x1b, 0x83, 0x52, 0x33, 0x00, 0x74, 0x6f, 0x72, 0x72, 0x65, 0x6e, 0x74, 0x37, 0x7a, 0x5f, 0x30, 0x2e, 0x39, 0x62, 0x65, 0x74, 0x61 };
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/* (Torrent)GZ Header Format
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https://tools.ietf.org/html/rfc1952
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00 Identification 1 (0x1F)
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01 Identification 2 (0x8B)
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02 Compression Method (0-7 reserved, 8 deflate; 0x08)
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03 Flags (0 FTEXT, 1 FHCRC, 2 FEXTRA, 3 FNAME, 4 FCOMMENT, 5 reserved, 6 reserved, 7 reserved; 0x04)
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04-07 Modification time (Unix format; 0x00, 0x00, 0x00, 0x00)
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08 Extra Flags (2 maximum compression, 4 fastest algorithm; 0x00)
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09 OS (See list on https://tools.ietf.org/html/rfc1952; 0x00)
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0A-0B Length of extra field (mirrored; 0x1C, 0x00)
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0C-27 Extra field
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0C-1B MD5 Hash
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1C-1F CRC hash
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20-27 Int64 size (mirrored)
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*/
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public readonly static byte[] TorrentGZHeader = new byte[] { 0x1f, 0x8b, 0x08, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1c, 0x00 };
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#endregion
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#region ZIP internal signatures
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public const uint LocalFileHeaderSignature = 0x04034b50;
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public const uint EndOfLocalFileHeaderSignature = 0x08074b50;
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public const uint CentralDirectoryHeaderSignature = 0x02014b50;
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public const uint EndOfCentralDirSignature = 0x06054b50;
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public const uint Zip64EndOfCentralDirSignature = 0x06064b50;
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public const uint Zip64EndOfCentralDirectoryLocator = 0x07064b50;
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public const uint TorrentZipFileDateTime = 0x2198BC00;
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#endregion
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}
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}
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