void LoadAndCompress()
{
compressedmem = new System.IO.MemoryStream();
System.IO.FileInfo fi = new System.IO.FileInfo(filename);
System.IO.FileStream filestream = new System.IO.FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.Read);
ComponentAce.Compression.Libs.zlib.ZOutputStream zstream = new ComponentAce.Compression.Libs.zlib.ZOutputStream(compressedmem, ComponentAce.Compression.Libs.zlib.zlibConst.Z_DEFAULT_COMPRESSION);
int totallen = (int)Size;
int len = buffer.Length;
while (totallen > 0)
{
if (len > totallen)
{
len = totallen;
}
filestream.Read(buffer, 0, len);
zstream.Write(buffer, 0, len);
totallen -= len;
}
zstream.finish();
filestream.Close();
compressedsize = (uint)compressedmem.Length;
adler32 = AdlerCheckSum.GetAdler32(compressedmem, 0, (int)compressedmem.Length);
}
public override void Convert(BlowfishNET.BlowfishECB ECB, AlgorithmType newalgorithm)
{
ecb = ECB;
oldalgorithm = algorithm;
algorithm = newalgorithm;
if (compressedmem == null)
{
LoadAndCompress();
}
if (oldalgorithm == algorithm || compressedsize < BlowfishNET.BlowfishECB.BLOCK_SIZE)
{
return;
}
int encryptlen = (int)compressedsize;
if (encryptlen % BlowfishNET.BlowfishECB.BLOCK_SIZE != 0)
{
encryptlen -= encryptlen % BlowfishNET.BlowfishECB.BLOCK_SIZE;
}
byte [] tmp = (byte [])compressedmem.GetBuffer().Clone();
if (algorithm == AlgorithmType.infilateandblowfish)
{
ecb.Encrypt(tmp, 0, compressedmem.GetBuffer(), 0, encryptlen);
}
else
{
ecb.Decrypt(tmp, 0, compressedmem.GetBuffer(), 0, encryptlen);
}
adler32 = AdlerCheckSum.GetAdler32(compressedmem, 0, (int)compressedmem.Length);
}
public static Kom2SubFileFromKom ReadSubFileFromOldKom(string komfilename, System.IO.BinaryReader reader, uint headersize)
{
Kom2SubFileFromKom subfile = new Kom2SubFileFromKom();
subfile.size = reader.ReadUInt32();
subfile.compressedsize = reader.ReadUInt32();
subfile.offset = headersize + reader.ReadUInt32();
subfile.adler32 = AdlerCheckSum.GetAdler32(komfilename, (int)subfile.offset, (int)subfile.compressedsize);
subfile.filename = komfilename;
return(subfile);
}
public override void Convert(BlowfishNET.BlowfishECB ECB, AlgorithmType newalgorithm)
{
ecb = ECB;
algorithm = newalgorithm;
if (oldalgorithm == algorithm || compressedsize < BlowfishNET.BlowfishECB.BLOCK_SIZE)
{
compressedmem = null;
return;
}
int encryptlen = (int)compressedsize;
compressedmem = new System.IO.MemoryStream();
System.IO.FileStream filestream = new System.IO.FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.Read);
filestream.Position = offset;
byte[] data = new byte[encryptlen];
filestream.Read(data, 0, encryptlen);
byte[] tmp = (byte[])data.Clone();
if (encryptlen % BlowfishNET.BlowfishECB.BLOCK_SIZE != 0)
{
encryptlen -= encryptlen % BlowfishNET.BlowfishECB.BLOCK_SIZE;
}
if (algorithm == AlgorithmType.infilateandblowfish)
{
ecb.Encrypt(tmp, 0, data, 0, encryptlen);
}
else
{
ecb.Decrypt(tmp, 0, data, 0, encryptlen);
}
compressedmem.Write(data, 0, (int)compressedsize);
adler32 = AdlerCheckSum.GetAdler32(compressedmem, 0, (int)compressedmem.Length);
filestream.Close();
}
public void Save(string filename)
{
string tmpfilename = filename + ".tmp";
System.IO.FileStream stream = new System.IO.FileStream(tmpfilename, System.IO.FileMode.Create, System.IO.FileAccess.Write);
System.IO.BinaryWriter writer = new System.IO.BinaryWriter(stream);
// 형식 정보 쓰자
byte[] magicbyte = new byte[52];
string magicstring = string.Format("KOG GC TEAM MASSFILE V.{0}.{1}.", version / 10, version % 10);
System.Text.ASCIIEncoding.ASCII.GetBytes(magicstring, 0, magicstring.Length, magicbyte, 0);
writer.Write(magicbyte);
filetime = 0;
foreach (System.Collections.Generic.KeyValuePair <string, Kom2SubFile> KeyValue in subfiles)
{
filetime += KeyValue.Value.FileTime;
}
// 헤더는 xml 형식
System.Xml.XmlDocument headerxml = new System.Xml.XmlDocument();
headerxml.AppendChild(headerxml.CreateNode(System.Xml.XmlNodeType.XmlDeclaration, "", ""));
System.Xml.XmlElement files = headerxml.CreateElement("Files");
headerxml.AppendChild(files);
foreach (System.Collections.Generic.KeyValuePair <string, Kom2SubFile> KeyValue in subfiles)
{
System.Xml.XmlElement file = headerxml.CreateElement("File");
file.SetAttribute("Name", KeyValue.Key);
KeyValue.Value.WriteHeader(file);
files.AppendChild(file);
}
int header_raw_size = headerxml.InnerXml.Length;
if (header_raw_size % BlowfishNET.BlowfishECB.BLOCK_SIZE != 0)
{
header_raw_size += BlowfishNET.BlowfishECB.BLOCK_SIZE - (header_raw_size % BlowfishNET.BlowfishECB.BLOCK_SIZE);
}
byte[] header_raw = new byte[header_raw_size];
System.Text.ASCIIEncoding.ASCII.GetBytes(headerxml.InnerXml, 0, headerxml.InnerXml.Length, header_raw, 0);
if (ecb != null)
{
byte[] header_encrypt = (byte [])header_raw.Clone();
int a = ecb.Encrypt(header_encrypt, 0, header_raw, 0, header_raw.Length);
}
writer.Write((UInt32)subfiles.Count);
writer.Write((UInt32)1);
writer.Write(FileTime); // 파일타임
writer.Write(AdlerCheckSum.GetAdler32(header_raw, 0, (uint)header_raw.Length)); // 체크섬
writer.Write((UInt32)header_raw.Length); // 압축 안한 사이즈
writer.Write(header_raw, 0, (int)header_raw.Length); // 헤더
foreach (System.Collections.Generic.KeyValuePair <string, Kom2SubFile> KeyValue in subfiles)
{
KeyValue.Value.WriteCompressed(writer.BaseStream);
}
stream.Close();
System.IO.File.Delete(filename);
System.IO.File.Move(tmpfilename, filename);
}