// https://github.com/icsharpcode/SharpZipLib/wiki/GZip-and-Tar-Samples
public static void ExtractTarByEntry(string tarFileName, string targetDir, bool asciiTranslate)
{
using (System.IO.FileStream fsIn = new System.IO.FileStream(tarFileName, System.IO.FileMode.Open, System.IO.FileAccess.Read))
{
ICSharpCode.SharpZipLib.Tar.TarInputStream tarIn = new ICSharpCode.SharpZipLib.Tar.TarInputStream(fsIn);
ICSharpCode.SharpZipLib.Tar.TarEntry tarEntry;
while ((tarEntry = tarIn.GetNextEntry()) != null)
{
if (tarEntry.IsDirectory)
{
System.Console.WriteLine(tarEntry.Name);
// ICSharpCode.SharpZipLib.Tar.TarEntry[] entries = tarEntry.GetDirectoryEntries();
// System.Console.WriteLine(entries);
continue;
}
// Converts the unix forward slashes in the filenames to windows backslashes
string name = tarEntry.Name.Replace('/', System.IO.Path.DirectorySeparatorChar);
// Remove any root e.g. '\' because a PathRooted filename defeats Path.Combine
if (System.IO.Path.IsPathRooted(name))
{
name = name.Substring(System.IO.Path.GetPathRoot(name).Length);
}
// Apply further name transformations here as necessary
string outName = System.IO.Path.Combine(targetDir, name);
string directoryName = System.IO.Path.GetDirectoryName(outName);
// Does nothing if directory exists
System.IO.Directory.CreateDirectory(directoryName);
System.IO.FileStream outStr = new System.IO.FileStream(outName, System.IO.FileMode.Create);
if (asciiTranslate)
{
CopyWithAsciiTranslate(tarIn, outStr);
}
else
{
tarIn.CopyEntryContents(outStr);
}
outStr.Close();
// Set the modification date/time. This approach seems to solve timezone issues.
System.DateTime myDt = System.DateTime.SpecifyKind(tarEntry.ModTime, System.DateTimeKind.Utc);
System.IO.File.SetLastWriteTime(outName, myDt);
}
tarIn.Close();
}
}
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);
}
}
private void _DeCompressTAR(string pathFileTAR, IDTSComponentEvents componentEvents, System.IO.Stream stream)
{
bool b = false;
if (stream == null)
{
stream = System.IO.File.OpenRead(pathFileTAR);
}
using (ICSharpCode.SharpZipLib.Tar.TarInputStream tar = new ICSharpCode.SharpZipLib.Tar.TarInputStream(stream))
{
ICSharpCode.SharpZipLib.Tar.TarEntry te = tar.GetNextEntry();
while (te != null)
{
string fn = te.Name.Replace("/", "\\");
System.IO.FileInfo fi = null;
if ((!System.Text.RegularExpressions.Regex.Match(fn, _fileFilter).Success) || (te.IsDirectory && te.Size == 0))
{
if (!System.Text.RegularExpressions.Regex.Match(fn, _fileFilter).Success)
{
componentEvents.FireInformation(1, "UnZip SSIS", _typeCompression.ToString() + ": file " + fn + " doesn't match regex filter '" + _fileFilter + "'", null, 0, ref b); // Added information display when regex doesn't match (Updated on 2015-12-30 by Nico_FR75)
}
te = tar.GetNextEntry();
continue;
}
componentEvents.FireInformation(1, "UnZip SSIS", _typeCompression.ToString() + ": De-Compress (with '" + _storePaths.ToString() + "') file: " + fn, null, 0, ref b);
if (_storePaths == Store_Paths.Absolute_Paths || _storePaths == Store_Paths.Relative_Paths)
{
//Absolute / Relative Path
fi = new System.IO.FileInfo(_folderDest + fn);
if (!System.IO.Directory.Exists(fi.DirectoryName))
{
System.IO.Directory.CreateDirectory(fi.DirectoryName);
}
}
else if (_storePaths == Store_Paths.No_Paths)
{
//No Path
fi = new System.IO.FileInfo(_folderDest + System.IO.Path.GetFileName(fn));
}
else
{
throw new Exception("Please select type Store Paths (No_Paths / Relative_Paths / Absolute_Paths).");
}
using (System.IO.FileStream fs = new System.IO.FileStream(fi.FullName, System.IO.FileMode.Create, System.IO.FileAccess.Write))
{
tar.CopyTo(fs);
fs.Flush();
}
te = tar.GetNextEntry();
}
tar.Flush();
tar.Close();
}
}
