/// <summary> /// Extract the contents of a zip file held in a stream. /// </summary> /// <param name="inputStream">The seekable input stream containing the zip to extract from.</param> /// <param name="targetDirectory">The directory to save extracted information in.</param> /// <param name="overwrite">The style of <see cref="Overwrite">overwriting</see> to apply.</param> /// <param name="confirmDelegate">A delegate to invoke when confirming overwriting.</param> /// <param name="fileFilter">A filter to apply to files.</param> /// <param name="directoryFilter">A filter to apply to directories.</param> /// <param name="restoreDateTime">Flag indicating whether to restore the date and time for extracted files.</param> /// <param name="isStreamOwner">Flag indicating whether the inputStream will be closed by this method.</param> public void ExtractZip(Stream inputStream, string targetDirectory, Overwrite overwrite, ConfirmOverwriteDelegate confirmDelegate, string fileFilter, string directoryFilter, bool restoreDateTime, bool isStreamOwner) { if ((overwrite == Overwrite.Prompt) && (confirmDelegate == null)) { throw new ArgumentNullException("confirmDelegate"); } continueRunning_ = true; overwrite_ = overwrite; confirmDelegate_ = confirmDelegate; extractNameTransform_ = new WindowsNameTransform(targetDirectory); fileFilter_ = new NameFilter(fileFilter); directoryFilter_ = new NameFilter(directoryFilter); restoreDateTimeOnExtract_ = restoreDateTime; using (zipFile_ = new ZipFile(inputStream)) { #if !NETCF_1_0 if (password_ != null) { zipFile_.Password = password_; } #endif zipFile_.IsStreamOwner = isStreamOwner; var enumerator = zipFile_.GetEnumerator(); while (continueRunning_ && enumerator.MoveNext()) { var entry = (ZipEntry)enumerator.Current; if (entry.IsFile) { // TODO Path.GetDirectory can fail here on invalid characters. if (directoryFilter_.IsMatch(Path.GetDirectoryName(entry.Name)) && fileFilter_.IsMatch(entry.Name)) { ExtractEntry(entry); } } else if (entry.IsDirectory) { if (directoryFilter_.IsMatch(entry.Name) && CreateEmptyDirectories) { ExtractEntry(entry); } } else { // Do nothing for volume labels etc... } } } }
/// <summary> /// Extracts the specified zip file stream. /// </summary> /// <param name="fileStream">The zip file stream.</param> /// <returns></returns> public bool Extract(Stream fileStream) { if (null == fileStream) return false; CleanFromTemp(); NewTempPath(); _isValid = true; ZipFile zipFile = null; try { zipFile = new ZipFile(fileStream); var enumerator = zipFile.GetEnumerator(); while (enumerator.MoveNext()) { var entry = (ZipEntry)enumerator.Current; ExtractZipEntry(zipFile, entry); } } catch (Exception ex) { _isValid = false; _exceptionMessage = ex.Message; CleanFromTemp(); } finally { fileStream.Close(); if (null != zipFile) zipFile.Close(); } return _isValid ? CheckFolderTree() : false; }