public static GZipResult Decompress(string lpSrcFolder, string lpDestFolder, string zipFileName,
bool deleteTempFile, bool writeFiles, string addExtension, Hashtable htFiles, int bufferSize)
{
GZipResult result = new GZipResult();
if (!lpDestFolder.EndsWith("\\"))
{
lpDestFolder += "\\";
}
string lpTempFile = lpSrcFolder + zipFileName + ".tmp";
string lpZipFile = lpSrcFolder + zipFileName;
result.TempFile = lpTempFile;
result.ZipFile = lpZipFile;
string line = null;
string lpFilePath = null;
string lpFolder = null;
GZipFileInfo gzf = null;
FileStream fsTemp = null;
ArrayList gzfs = new ArrayList();
bool write = false;
if (string.IsNullOrEmpty(addExtension))
{
addExtension = string.Empty;
}
else if (!addExtension.StartsWith("."))
{
addExtension = "." + addExtension;
}
// extract the files from the temp file
try
{
fsTemp = UnzipToTempFile(lpZipFile, lpTempFile, result);
if (fsTemp != null)
{
while (fsTemp.Position != fsTemp.Length)
{
line = null;
while (string.IsNullOrEmpty(line) && fsTemp.Position != fsTemp.Length)
{
line = ReadLine(fsTemp);
}
if (!string.IsNullOrEmpty(line))
{
gzf = new GZipFileInfo();
if (gzf.ParseFileInfo(line) && gzf.Length > 0)
{
gzfs.Add(gzf);
lpFilePath = lpDestFolder + gzf.RelativePath;
lpFolder = GetFolder(lpFilePath);
gzf.LocalPath = lpFilePath;
write = false;
if (htFiles == null || htFiles.ContainsKey(gzf.RelativePath))
{
gzf.RestoreRequested = true;
write = writeFiles;
}
if (write)
{
// make sure the folder exists
if (!Directory.Exists(lpFolder))
{
Directory.CreateDirectory(lpFolder);
}
// read from fsTemp and write out the file
gzf.Restored = WriteFile(fsTemp, gzf.Length, lpFilePath + addExtension, bufferSize);
}
else
{
// need to advance fsTemp
fsTemp.Position += gzf.Length;
}
}
}
}
}
}
catch //(Exception ex3)
{
result.Errors = true;
}
finally
{
if (fsTemp != null)
{
fsTemp.Close();
fsTemp = null;
}
}
// delete the temp file
try
{
if (deleteTempFile)
{
File.Delete(lpTempFile);
result.TempFileDeleted = true;
}
}
catch //(Exception ex4)
{
result.Errors = true;
}
result.FileCount = gzfs.Count;
result.Files = new GZipFileInfo[gzfs.Count];
gzfs.CopyTo(result.Files);
return(result);
}