Пример #1
0
        /// <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;
                System.Collections.IEnumerator enumerator = zipFile_.GetEnumerator();
                while (continueRunning_ && enumerator.MoveNext())
                {
                    ZipEntry 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...
                    }
                }
            }
        }