public ResolveStream(DecompressionStream inStream, long Position, long Length)
{
this.inStream = inStream;
fileLength = Length;
offset = Position;
inStream.Position = Position;
}
public void UnpackNoEvent(string outputPath, List <FileData> fileDatas)
{
inputStream = new FileStream(filePath, FileMode.Open, FileAccess.Read)
{
Position = compressInfo.DataPos
};
long writtenLength = 0;
if (crypto != null)
{
decompStream = new DecompressionStream(inputStream, compressInfo, crypto);
}
else
{
decompStream = new DecompressionStream(inputStream, compressInfo);
}
foreach (FileData file in fileDatas)
{
FileStream outputFileStream = new FileStream(outputPath + "\\" + file.FileName, FileMode.Create, FileAccess.ReadWrite);
if (decompStream.Position != file.Position)
{
decompStream.Position = file.Position;
}
for (long i = 0; i < file.Length; i++)
{
if (Token.IsCancellationRequested)
{
outputFileStream.Dispose();
return;
}
outputFileStream.WriteByte((byte)decompStream.ReadByte());
writtenLength++;
}
outputFileStream.Dispose();
}
decompStream.Dispose();
inputStream.Dispose();
}
public FileUnpacker(string filePathtoUnpack, CryptoClass crypto, CancellationToken ct)
{
Token = ct;
filePath = filePathtoUnpack;
this.crypto = crypto;
inputStream = new FileStream(filePathtoUnpack, FileMode.Open, FileAccess.Read);
compressInfo = new CompressionInfo(inputStream, crypto);
try
{
decompStream = new DecompressionStream(inputStream, compressInfo, crypto);
decompStream.ReadByte();
decompStream.Dispose();
}
catch (System.Security.Cryptography.CryptographicException)
{
inputStream.Dispose();
throw new IncorrectKeyException();
}
fileDatas = compressInfo.Files;
inputStream.Dispose();
}
public void Unpack(string outputPath, List <FileData> fileDatas, long totalLength)
{
if (EventRaiser.OnFileNameChange == null && EventRaiser.OnProgressChange == null)
{
UnpackNoEvent(outputPath, fileDatas);
return;
}
inputStream = new FileStream(filePath, FileMode.Open, FileAccess.Read)
{
Position = compressInfo.DataPos
};
long writtenLength = 0;
double tempValue = 0;
if (crypto != null)
{
decompStream = new DecompressionStream(inputStream, compressInfo, crypto);
}
else
{
decompStream = new DecompressionStream(inputStream, compressInfo);
}
foreach (FileData file in fileDatas)
{
EventRaiser.OnFileNameChange?.Invoke(file.FileName);
FileStream outputFileStream = new FileStream(outputPath + "\\" + file.FileName, FileMode.Create, FileAccess.ReadWrite);
if (decompStream.Position != file.Position)
{
decompStream.Position = file.Position;
}
for (long i = 0; i < file.Length; i++)
{
if (Token.IsCancellationRequested)
{
outputFileStream.Dispose();
return;
}
outputFileStream.WriteByte((byte)decompStream.ReadByte());
writtenLength++;
if (EventRaiser.OnProgressChange != null)
{
double value = Math.Round((double)writtenLength / totalLength * 100, 1);
if (tempValue != value)
{
tempValue = value;
EventRaiser.OnProgressChange.Invoke(value);
}
}
}
outputFileStream.Dispose();
}
decompStream.Dispose();
inputStream.Dispose();
}
