public void DeepScan()
{
const int bufferSize = 4096 * 128;
byte[] buffer = new byte[bufferSize];
for (int index = 0; index < _localFiles.Count; index++)
{
if (_localFiles[index].isDirectory || _localFiles[index].UncompressedSize == 0)
{
_localFiles[index].md5 = new byte[] { 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04, 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e };
_localFiles[index].sha1 = new byte[] { 0xda, 0x39, 0xa3, 0xee, 0x5e, 0x6b, 0x4b, 0x0d, 0x32, 0x55, 0xbf, 0xef, 0x95, 0x60, 0x18, 0x90, 0xaf, 0xd8, 0x07, 0x09 };
_localFiles[index].FileStatus = ZipReturn.ZipGood;
continue;
}
ulong sizetogo;
Stream inStream;
ZipReturn zr = ZipFileOpenReadStream(index, out inStream, out sizetogo);
if (zr != ZipReturn.ZipGood)
{
continue;
}
if (inStream == null)
{
continue;
}
CRC crc32 = new CRC();
MD5 lmd5 = System.Security.Cryptography.MD5.Create();
SHA1 lsha1 = System.Security.Cryptography.SHA1.Create();
while (sizetogo > 0)
{
int sizenow = sizetogo > (ulong)bufferSize ? bufferSize : (int)sizetogo;
inStream.Read(buffer, 0, sizenow);
crc32.Update(buffer, 0, (uint)sizenow);
lmd5.TransformBlock(buffer, 0, sizenow, null, 0);
lsha1.TransformBlock(buffer, 0, sizenow, null, 0);
sizetogo = sizetogo - (ulong)sizenow;
}
lmd5.TransformFinalBlock(buffer, 0, 0);
lsha1.TransformFinalBlock(buffer, 0, 0);
byte[] testcrc = Util.uinttobytes(crc32.GetDigest());
_localFiles[index].md5 = lmd5.Hash;
_localFiles[index].sha1 = lsha1.Hash;
_localFiles[index].FileStatus = Util.ByteArrCompare(_localFiles[index].crc, testcrc) ? ZipReturn.ZipGood : ZipReturn.ZipCRCDecodeError;
}
}
private void CloseWriting7Zip(ICodeProgress p = null)
{
if (_compressed)
{
_lzmaStream.Close();
}
_packStreamSize = (UInt64)_zipFs.Position - _packStreamStart;
Create7ZStructure();
byte[] newHeaderByte;
using (Stream headerMem = new MemoryStream())
{
using (BinaryWriter headerBw = new BinaryWriter(headerMem))
{
_header.WriteHeader(headerBw);
newHeaderByte = new byte[headerMem.Length];
headerMem.Position = 0;
headerMem.Read(newHeaderByte, 0, newHeaderByte.Length);
}
}
CRC mainHeadercrc = new CRC();
mainHeadercrc.Update(newHeaderByte, 0, (uint)newHeaderByte.Length);
UInt32 mainHeaderCRC = mainHeadercrc.GetDigest();
UInt64 headerpos = (UInt64)_zipFs.Position;
BinaryWriter bw = new BinaryWriter(_zipFs);
bw.Write(newHeaderByte);
_signatureHeader.WriteFinal(bw, headerpos, (ulong)newHeaderByte.Length, mainHeaderCRC);
WriteRomVault7Zip(bw, headerpos, (ulong)newHeaderByte.Length, mainHeaderCRC);
_zipFs.Flush();
_zipFs.Close();
_zipFs.Dispose();
}