public static void ExtractToDirectory(this ZipArchive source, string destinationDirectoryName, IProgress <ZipProgress> progress, bool overwrite)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (destinationDirectoryName == null)
{
throw new ArgumentNullException(nameof(destinationDirectoryName));
}
// Rely on Directory.CreateDirectory for validation of destinationDirectoryName.
// Note that this will give us a good DirectoryInfo even if destinationDirectoryName exists:
DirectoryInfo di = Directory.CreateDirectory(destinationDirectoryName);
string destinationDirectoryFullPath = di.FullName;
int count = 0;
foreach (ZipArchiveEntry entry in source.Entries)
{
count++;
string fileDestinationPath = Path.GetFullPath(Path.Combine(destinationDirectoryFullPath, entry.FullName));
if (!fileDestinationPath.StartsWith(destinationDirectoryFullPath, StringComparison.OrdinalIgnoreCase))
{
throw new IOException("File is extracting to outside of the folder specified.");
}
var zipProgress = new ZipProgress(source.Entries.Count, count, entry.FullName);
progress.Report(zipProgress);
if (Path.GetFileName(fileDestinationPath).Length == 0)
{
// If it is a directory:
if (entry.Length != 0)
{
throw new IOException("Directory entry with data.");
}
Directory.CreateDirectory(fileDestinationPath);
}
else
{
// If it is a file:
// Create containing directory:
Directory.CreateDirectory(Path.GetDirectoryName(fileDestinationPath));
entry.ExtractToFile(fileDestinationPath, overwrite: overwrite);
}
}
}
private void ZipProgress_ProgressChanged(object sender, ZipProgress e)
{
ProgressIntervalDetails = e.CurrentItem;
ProgressIntervalPercent = (int)Math.Round((double)e.Processed / (double)e.Total);
}
