public static IEnumerable <string> Extract(string file, string basePath)
{
// Extract and clean up names
string path = Path.Combine(basePath, "A_" + Compare.Hash(Path.GetFileName(file)).Substring(0, 6));
// Create the directory to be used for storing the archives crap
Directory.CreateDirectory(path);
if (!File.Exists(file))
{
throw new FileNotFoundException("Unable to find/access archive (" + file + ").");
}
if (!Directory.Exists(path))
{
throw new DirectoryNotFoundException("Unable to find/access the created directory (" + path + ").");
}
FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read, bufferSize: 0x1000, useAsync: false);
try
{
ZipArchive zip = new ZipArchive(fs, ZipArchiveMode.Read, leaveOpen: false, entryNameEncoding: System.Text.Encoding.ASCII);
if (zip == null)
{
throw new ArgumentNullException(nameof(zip));
}
if (path == null)
{
throw new ArgumentNullException(nameof(path));
}
// 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(path);
string destinationDirectoryFullPath = di.FullName;
foreach (ZipArchiveEntry entry in zip.Entries)
{
// Handle malformed paths inside of zip
if (entry.FullName.EndsWith("/", StringComparison.OrdinalIgnoreCase) || entry.FullName.EndsWith("\\", StringComparison.OrdinalIgnoreCase))
{
continue;
}
string cleanPass = Platform.CleanPath(entry.FullName);
string fileName = Path.GetFileName(cleanPass);
string pass = cleanPass.TrimEnd(fileName.ToArray <char>());
string fileDestinationPath = Path.GetFullPath(Path.Combine(destinationDirectoryFullPath, pass, fileName));
if (!fileDestinationPath.StartsWith(destinationDirectoryFullPath, StringComparison.OrdinalIgnoreCase))
{
throw new IOException("ExtractingResultsInOutside");
}
// If it is a file:
// Create containing directory:
Directory.CreateDirectory(Path.GetDirectoryName(fileDestinationPath));
entry.ExtractToFile(fileDestinationPath, overwrite: true);
}
fs.Dispose();
}
catch (Exception e)
{
fs.Dispose();
Logging.Log.Session.Add("Core.Compression.Extract", e.Message);
}
// Return files that were extracted
return(Platform.GetFiles(path, string.Empty));
}
