private bool SaveFile(BBA bba, string outDir)
{
FileStream f = null;
MemoryStream fStream = null;
string FileName = bba.FileName;
FileStream pakFile = m_fs;
pakFile.Position = bba.Offset;
int BytesToWrite = bba.UnpackedSize;
int BytesToRead = (bba.PackedSize % 4);
BytesToRead = (BytesToRead == 0) ? bba.PackedSize : (4 - BytesToRead) + bba.PackedSize;
int BytesRead = 0;
try
{
f = CreateFile(outDir, FileName);
if (f == null)
{
return(false);
}
if (bba.UnpackedSize == 0)
{
f.Close(); return(true);
}
fStream = new MemoryStream(BytesToRead);
if (fStream == null)
{
f.Close(); return(false);
}
byte[] buff = fStream.GetBuffer();
BBAFlags Flags = (BBAFlags)bba.Flags;
bool IsFileWriten = false;
bool Decrypted = false;
bool Decompressed = false;
BytesRead = pakFile.Read(buff, 0, BytesToRead);
if (BytesRead == 0)
{
f.Close(); return(false);
}
if ((Flags & BBAFlags.EncryptedHeader) == BBAFlags.EncryptedHeader)
{
int count = bba.PackedSize / bba.Unknown2 + 1;
byte[] b = new byte[0x10];
for (int i = 0; i < count; i++)
{
Array.Copy(buff, i * bba.Unknown2, b, 0, 0x10);
using (MemoryStream s = new MemoryStream())
{
s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
byte[] TmpKey = s.GetBuffer();
BBACrypt.DecryptFileHeader(b, b.Length, TmpKey, 0x10, false);
}
Array.Copy(b, 0, buff, i * bba.Unknown2, 0x10);
}
}
if ((Flags & BBAFlags.EncryptedEntireContent) == BBAFlags.EncryptedEntireContent)
{
IsFileWriten = true;
int count = BytesToRead / bba.Unknown2 + 1;
byte[] b = new byte[0x8000];
for (int i = 0; i < count; i++)
{
int ToDecrypt = ((BytesToRead - (i * bba.Unknown2 + b.Length)) >= 0) ? b.Length : BytesToRead - i * bba.Unknown2;
Array.Copy(buff, i * bba.Unknown2, b, 0, ToDecrypt);
using (MemoryStream s = new MemoryStream())
{
s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
byte[] TmpKey = s.GetBuffer();
bool bRes = BBACrypt.DecryptIndexTable(b, ToDecrypt, TmpKey, 0x10);
if (!bRes)
{
this.listBox1.Items.Add("Failed to decrypt: " + bba.FileName);
}
int ToWrite = (ToDecrypt == 0x8000) ? 0x8000 : BytesToWrite - i * bba.Unknown2;
f.Write(b, 0, ToWrite);
}
}
}
if ((Flags & BBAFlags.Gziped) == BBAFlags.Gziped &&
!Decompressed)
{
IsFileWriten = true;
using (MemoryStream m = new MemoryStream(buff))
{
using (GZipStream Decompress = new GZipStream(m, CompressionMode.Decompress))
{
MemoryStream DecompressionStream = new MemoryStream(0x10000);
byte[] DecompressionBuffer = DecompressionStream.GetBuffer();
int numRead;
while ((numRead = Decompress.Read(DecompressionBuffer, 0, DecompressionBuffer.Length)) != 0)
{
f.Write(DecompressionBuffer, 0, numRead);
BytesToWrite -= numRead;
}
DecompressionStream.Dispose();
DecompressionStream.Close();
Decompressed = true;
}
}
}
if (!IsFileWriten)
{
f.Write(buff, 0, bba.PackedSize);
}
// MemoryStream s = new MemoryStream();
//
// s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
// s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
// s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
// s.Write(BitConverter.GetBytes(bba.PathSize), 0, 4);
//
// byte[] TmpKey = s.GetBuffer();
// buff = new byte[bba.UnpackedSize];
// pakFile.Read(buff, 0, buff.Length);
//
// bool bRes = BBACrypt.DecryptIndexTable(buff, buff.Length, TmpKey, 0x10);
//
// if (bRes == false)
// {
// this.listBox1.SelectedItem = listBox1.Items.Add("Failed to decrypt: " + bba.FileName );
// }
// else
// {
//
// }
// }
}
catch (System.Exception ex)
{
if (FileName != null)
{
this.listBox1.Items.Add(FileName);
}
this.listBox1.Items.Add(ex.Message);
}
f.Position = 0;
int crc32 = Compression.GetStreamCRC32(f);
if (bba.UnpackedCRC32 != crc32)
{
listBox1.Items.Add("CRC mismatch: " + bba.FileName);
}
if (f != null)
{
f.Close();
}
if (fStream != null)
{
fStream.Dispose();
fStream.Close();
}
DateTime time = DateTime.FromFileTime(bba.Time);
File.SetCreationTime(outDir + @"\" + FileName, time);
File.SetLastWriteTime(outDir + @"\" + FileName, time);
File.SetLastAccessTime(outDir + @"\" + FileName, time);
return(true);
}
private void ReadFAT(FileStream f)
{
//Prepare FAT reader.
f.Position = m_header.IndexTableOffset;
byte[] table = new byte[m_header.IndexTableSize];
f.Read(table, 0, table.Length);
BBACrypt.DecryptIndexTable(table, table.Length, null, 0);
//MemoryStream input = new MemoryStream( table );
m_IndexTable = new MemoryStream(table);
//Compression.Decompress( input, 8, m_IndexTable, true );
//input.Dispose();
//input.Close();
//table = m_IndexTable.GetBuffer();
FileStream fs = File.OpenWrite(openFileDialog1.FileName + ".idx");
fs.Write(table, 0, table.Length);
fs.Close();
m_tablehead.OffsetToBBAHeadInTable = BitConverter.ToInt32(table, 0);
m_tablehead.IndexTableOffset = BitConverter.ToInt32(table, 4);
m_tablehead.HashTableOffset = BitConverter.ToInt32(table, 8);
m_IndexTable.Position = m_tablehead.IndexTableOffset + 4;
BinaryReader reader = new BinaryReader(m_IndexTable, Encoding.Default);
int count = BitConverter.ToInt32(table, m_tablehead.IndexTableOffset);
long TableBegin = m_IndexTable.Position;
for (int i = 0; i < count; i++)
{
BBA bba = new BBA();
bba.BBAEntryPositionInTable = m_IndexTable.Position;
bba.Time = reader.ReadInt64();
bba.UnpackedSize = reader.ReadInt32();
bba.UnpackedCRC32 = reader.ReadInt32();
bba.Flags = reader.ReadInt32();
bba.Unknown1 = reader.ReadInt32();
bba.Offset = reader.ReadInt64();
bba.PackedSize = reader.ReadInt32();
bba.PackedCRC32 = reader.ReadInt32();
bba.Unknown2 = reader.ReadInt32();
bba.Unknown3 = reader.ReadInt32();
bba.PathSize = reader.ReadInt32();
bba.SizeOfPathToRootDir = reader.ReadInt32();
bba.IsFile = reader.ReadInt32();
bba.OffsetToNextFileName = reader.ReadInt32();
byte[] filename = reader.ReadBytes(bba.PathSize);
bba.FileName = Encoding.Default.GetString(filename);
//if( ( bba.Unknown1 + bba.Unknown2 + bba.Unknown3 ) != 0 )
//{
// listBox1.Items.Add("u1: " + bba.Unknown1.ToString() + "u2: " + bba.Unknown2.ToString() + "u3: " + bba.Unknown3.ToString());
//}
if (bba.IsFile == -1)
{
m_pakList.Add(bba);
}
//else
//{
// m_dirList.Add(bba);
//}
int pos = (int)m_IndexTable.Position + 1;
int x = (pos % 4);
pos = (x == 0) ? 0 : 4 - x;
m_IndexTable.Position += pos + 1;
//if (bba.OffsetToNextFileName == -1)
// break;
//m_IndexTable.Position = pos;//TableBegin + bba.OffsetToNextFileName;
}
listBox1.Items.Add("Files found: " + m_pakList.Count.ToString());
m_IndexTable.Position = 0;
}
