private static void CopyWithAsciiTranslate(ICSharpCode.SharpZipLib.Tar.TarInputStream tarIn, System.IO.Stream outStream)
{
byte[] buffer = new byte[4096];
bool isAscii = true;
bool cr = false;
int numRead = tarIn.Read(buffer, 0, buffer.Length);
int maxCheck = System.Math.Min(200, numRead);
for (int i = 0; i < maxCheck; i++)
{
byte b = buffer[i];
if (b < 8 || (b > 13 && b < 32) || b == 255)
{
isAscii = false;
break;
}
}
while (numRead > 0)
{
if (isAscii)
{
// Convert LF without CR to CRLF. Handle CRLF split over buffers.
for (int i = 0; i < numRead; i++)
{
byte b = buffer[i]; // assuming plain Ascii and not UTF-16
if (b == 10 && !cr) // LF without CR
{
outStream.WriteByte(13);
}
cr = (b == 13);
outStream.WriteByte(b);
}
}
else
{
outStream.Write(buffer, 0, numRead);
}
numRead = tarIn.Read(buffer, 0, buffer.Length);
}
}
/// <summary>
///
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public static byte[] DecompressBytes(byte[] data)
{
var o = new MemoryStream();
var s = new ICSharpCode.SharpZipLib.Tar.TarInputStream(new MemoryStream(data));
try
{
var size = 0;
var buf = new byte[1024];
while ((size = s.Read(buf, 0, buf.Length)) > 0)
{
o.Write(buf, 0, size);
}
}
finally
{
o.Close();
}
return(o.ToArray());
}
/// <summary>
/// tar包解压
/// </summary>
/// <param name="strFilePath">tar包路径</param>
/// <param name="strUnpackDir">解压到的目录</param>
/// <returns></returns>
public static bool UnpackTarFiles(string strFilePath, string strUnpackDir)
{
try
{
if (!File.Exists(strFilePath))
{
return(false);
}
strUnpackDir = strUnpackDir.Replace("/", "\\");
if (!strUnpackDir.EndsWith("\\"))
{
strUnpackDir += "\\";
}
if (!Directory.Exists(strUnpackDir))
{
Directory.CreateDirectory(strUnpackDir);
}
using (FileStream fr = new FileStream(strFilePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
using (ICSharpCode.SharpZipLib.Tar.TarInputStream s = new ICSharpCode.SharpZipLib.Tar.TarInputStream(fr))
{
ICSharpCode.SharpZipLib.Tar.TarEntry theEntry;
while ((theEntry = s.GetNextEntry()) != null)
{
string directoryName = Path.GetDirectoryName(theEntry.Name);
string fileName = Path.GetFileName(theEntry.Name);
if (directoryName != String.Empty)
{
Directory.CreateDirectory(strUnpackDir + directoryName);
}
if (fileName != String.Empty)
{
FileStream streamWriter = File.Create(strUnpackDir + theEntry.Name);
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = s.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
streamWriter.Close();
}
}
}
}
return(true);
}
catch
{
return(false);
}
}
