public bool UnZipFile(string zipFilePath, string unZipDir, UnzipHandler unzipHandler, out string errorMessage)
{
errorMessage = string.Empty;
if (zipFilePath == string.Empty || !File.Exists(zipFilePath))
{
errorMessage = "Zip File Not Found";
return(false);
}
if (unZipDir == string.Empty)
{
unZipDir = zipFilePath.Replace(Path.GetFileName(zipFilePath), Path.GetFileNameWithoutExtension(zipFilePath));
}
if (!unZipDir.EndsWith("\\"))
{
unZipDir += "\\";
}
if (!Directory.Exists(unZipDir))
{
Directory.CreateDirectory(unZipDir);
}
try
{
using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipFilePath)))
{
ZipEntry theEntry;
while ((theEntry = s.GetNextEntry()) != null)
{
string directoryName = Path.GetDirectoryName(theEntry.Name);
string fileName = Path.GetFileName(theEntry.Name);
string relFileName = directoryName + "\\" + fileName;
UnzipCode code = unzipHandler(relFileName, null);
if (directoryName.Length > 0)
{
string pathName = unZipDir + directoryName;
if (!Directory.Exists(pathName))
{
Directory.CreateDirectory(pathName);
}
}
if (!directoryName.EndsWith("\\"))
{
directoryName += "\\";
}
if (fileName != String.Empty)
{
MemoryStream ms = new MemoryStream();
while (true)
{
int r = s.Read(this.buffer, 0, this.buffer.Length);
if (r > 0)
{
ms.Write(this.buffer, 0, r);
}
else
{
break;
}
}
if (code == UnzipCode.Compare)
{
ms.Seek(0, SeekOrigin.Begin);
unzipHandler(relFileName, ms);
}
else if (code == UnzipCode.Ignore)
{
continue;
}
string destFileName = unZipDir + theEntry.Name;
using (FileStream streamWriter = File.Create(destFileName))
{
ms.Seek(0, SeekOrigin.Begin);
while (true)
{
int r = ms.Read(this.buffer, 0, this.buffer.Length);
if (r > 0)
{
streamWriter.Write(this.buffer, 0, r);
}
else
{
break;
}
}
UpdateLog.Instance().AddName(theEntry.Name);
}
}
}
}
}
catch (Exception ex)
{
errorMessage = ex.Message;
return(false);
}
return(true);
}