private static void WriteProgress(int line, ref int lastLineLength, ExkifintArgs args)
{
Console.CursorLeft = 0;
Console.CursorTop = line;
string newLine =
$"[{args.Percent.ToString("00.00")}%]" +
$"[{Math.Min(args.FileCount, args.FileIndex + 1)}/{args.FileCount}]" +
$"[{args.Ellapsed.ToString(@"hh\:mm\:ss")}]" +
$" {args.FileName}";
if (newLine.Length > Console.BufferWidth)
{
newLine = newLine.Substring(0, Console.BufferWidth);
}
if (lastLineLength > newLine.Length)
{
newLine += new string(' ', lastLineLength - newLine.Length);
}
lastLineLength = newLine.Length;
Console.Write(newLine);
}
private static void Run(Stream stream, string intFile, string exeFile,
string outputDir, ExkifintCallback progress = null)
{
Stopwatch watch = Stopwatch.StartNew();
DateTime startTime = DateTime.UtcNow;
string gameId = FindVCode2(exeFile);
BinaryReader reader = new BinaryReader(stream);
KIFHDR hdr = reader.ReadStruct <KIFHDR>();
if (hdr.Signature != "KIF") // It's really a KIF INT file
{
throw new InvalidFileException(Path.GetFileName(intFile), "INT");
}
KIFENTRY[] entries = reader.ReadStructArray <KIFENTRY>(hdr.EntryCount);
uint tocSeed = GenTocSeed(gameId);
uint fileKey = 0;
bool decrypt = false;
/*const string fileName = "bom_s.hg3";
* const uint offset = 1112718577;
* const int length = 1907629000;
* const uint fileKey2 = 1457527205;
* KIFENTRY kifEntry = new KIFENTRY {
* FileNameRaw = new char[64],
* Offset = offset,
* Length = length,
* };
* Array.Copy(fileName.ToCharArray(), kifEntry.FileNameRaw, fileName.Length);
* DecryptEntry(ref kifEntry, fileKey2);*/
ExkifintArgs args = new ExkifintArgs();
for (int i = 0; i < hdr.EntryCount; i++)
{
if (entries[i].FileName == "__key__.dat")
{
if (!decrypt)
{
//MersenneTwister.Seed(entries[i].Length);
//fileKey = MersenneTwister.GenRand();
fileKey = MersenneTwister.GenRand(entries[i].Length);
decrypt = true;
}
}
else
{
args.FileCount++;
}
}
DateTime lastRefresh = DateTime.MinValue;
Stopwatch writeTime = new Stopwatch();
TimeSpan refreshTime = TimeSpan.FromMilliseconds(20);
//Stopwatch processTime = new Stopwatch();
for (uint i = 0; i < hdr.EntryCount; i++)
{
if (entries[i].FileName == "__key__.dat")
{
continue;
}
if (decrypt)
{
UnobfuscateFileName(entries[i].FileNameRaw, tocSeed + i);
//UnobfuscateFileName(ref entries[i].FileName, tocSeed + i);
entries[i].Offset += i;
DecryptEntry(ref entries[i].Info, fileKey);
/*Blowfish bf = new Blowfish();
* bf.Set_Key((byte*) &file_key, 4);
* byte[] entry_buff = entries[i].bytes;
* bf.Decrypt(entry_buff, 8);
* entries[i].bytes = entry_buff;*/
}
args.Ellapsed = DateTime.UtcNow - startTime;
// Round to nearest hundredth
args.Percent = Math.Round((double)args.FileIndex / args.FileCount * 10000) / 100;
args.FileName = entries[i].FileName;
TimeSpan sinceRefresh = DateTime.UtcNow - lastRefresh;
if (sinceRefresh >= refreshTime)
{
lastRefresh = DateTime.UtcNow;
writeTime.Start();
progress?.Invoke(args);
writeTime.Stop();
}
//processTime.Restart();
stream.Position = entries[i].Offset;
byte[] buffer = reader.ReadBytes(entries[i].Length);
if (decrypt)
{
DecryptData(buffer, entries[i].Length, fileKey);
/*Blowfish bf = new Blowfish();
* bf.Set_Key((byte*)&file_key, 4);
* bf.Decrypt(buff, (len / 8) * 8);*/
}
string path = Path.Combine(outputDir, entries[i].FileName);
File.WriteAllBytes(path, buffer);
args.FileIndex++;
//processTime.Stop();
//if (processTime.ElapsedMilliseconds >= 500)
// Trace.WriteLine($"Large File: {buffer.Length / 1024:###,###,###,###}KB [{processTime.ElapsedMilliseconds}ms]");
}
args.Ellapsed = DateTime.UtcNow - startTime;
args.Percent = 100.0;
progress?.Invoke(args);
Trace.WriteLine($"Console Write Time: {writeTime.Elapsed:mm\\:ss\\.fff}");
}
