public MPQHeader([NotNull] byte[] data)
{
using var dataStream = new MemoryStream(data);
using var br = new BinaryReader(dataStream);
var dataSignature = new string(br.ReadChars(4));
if (dataSignature != ArchiveSignature)
{
throw new FileLoadException("The provided file was not an MPQ file.");
}
HeaderSize = br.ReadUInt32();
_basicArchiveSize = br.ReadUInt32();
_format = (MPQFormat)br.ReadUInt16();
_sectorSizeExponent = br.ReadUInt16();
_hashTableOffset = br.ReadUInt32();
_blockTableOffset = br.ReadUInt32();
HashTableEntryCount = br.ReadUInt32();
BlockTableEntryCount = br.ReadUInt32();
if (_format < MPQFormat.ExtendedV1)
{
return;
}
_extendedBlockTableOffset = br.ReadUInt64();
_extendedFormatHashTableOffsetBits = br.ReadUInt16();
_extendedFormatBlockTableOffsetBits = br.ReadUInt16();
}
/// <summary>
/// Initializes a new instance of the <see cref="Warcraft.MPQ.MPQHeader"/> class.
/// </summary>
/// <param name="data">A byte array containing the header data of the archive.</param>
/// <exception cref="FileLoadException">A FileLoadException may be thrown if the archive was not
/// an MPQ file starting with the string "MPQ\x1a".</exception>
/// <summary>
/// Initializes a new instance of the <see cref="MPQHeader"/> class.
/// </summary>
/// <param name="data">The binary data.</param>
public MPQHeader(byte[] data)
{
using (MemoryStream dataStream = new MemoryStream(data))
{
using (BinaryReader br = new BinaryReader(dataStream))
{
string dataSignature = new string(br.ReadChars(4));
if (dataSignature != ArchiveSignature)
{
throw new FileLoadException("The provided file was not an MPQ file.");
}
HeaderSize = br.ReadUInt32();
BasicArchiveSize = br.ReadUInt32();
Format = (MPQFormat)br.ReadUInt16();
SectorSizeExponent = br.ReadUInt16();
HashTableOffset = br.ReadUInt32();
BlockTableOffset = br.ReadUInt32();
HashTableEntryCount = br.ReadUInt32();
BlockTableEntryCount = br.ReadUInt32();
if (Format >= MPQFormat.ExtendedV1)
{
ExtendedBlockTableOffset = br.ReadUInt64();
ExtendedFormatHashTableOffsetBits = br.ReadUInt16();
ExtendedFormatBlockTableOffsetBits = br.ReadUInt16();
}
if (Format >= MPQFormat.ExtendedV2)
{
LongArchiveSize = br.ReadUInt64();
BETTableOffset = br.ReadUInt64();
HETTableOffset = br.ReadUInt64();
}
if (Format >= MPQFormat.ExtendedV3)
{
CompressedHashTableSize = br.ReadUInt64();
CompressedBlockTableSize = br.ReadUInt64();
CompressedExtendedBlockTableSize = br.ReadUInt64();
CompressedHETTableSize = br.ReadUInt64();
CompressedBETTableSize = br.ReadUInt64();
ChunkSizeForHashing = br.ReadUInt32();
MD5BlockTable = BitConverter.ToString(br.ReadBytes(16));
MD5HashTable = BitConverter.ToString(br.ReadBytes(16));
MD5ExtendedBlockTable = BitConverter.ToString(br.ReadBytes(16));
MD5BETTable = BitConverter.ToString(br.ReadBytes(16));
MD5HETTable = BitConverter.ToString(br.ReadBytes(16));
MD5Header = BitConverter.ToString(br.ReadBytes(16));
}
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Warcraft.MPQ.MPQ"/> class.
/// This constructor creates an empty archive.
/// </summary>
/// <param name="inFormat">In format.</param>
public MPQ(MPQFormat inFormat)
{
if (inFormat > MPQFormat.ExtendedV1)
{
throw new NotImplementedException();
}
this.Header = new MPQHeader(inFormat);
this.ArchiveHashTable = new HashTable();
this.ArchiveBlockTable = new BlockTable();
}
// The MD5_Header is calculated from the start of the signature to the end of the MD5_HETTable
/// <summary>
/// Initializes a new instance of the <see cref="Warcraft.MPQ.MPQHeader"/> class.
/// This creates a default header for an empty archive.
/// </summary>
public MPQHeader(MPQFormat inFormat)
{
if (inFormat == MPQFormat.Basic)
{
HeaderSize = 32;
}
else if (inFormat == MPQFormat.ExtendedV1)
{
HeaderSize = 44;
}
else
{
throw new NotImplementedException();
}
BasicArchiveSize = HeaderSize;
Format = inFormat;
SectorSizeExponent = 3;
if (Format > MPQFormat.ExtendedV1)
{
LongArchiveSize = HeaderSize;
}
}
