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- using System.Collections.Generic;
- using System.IO;
- using SharpCompress.Common;
- using SharpCompress.Common.Zip;
- using SharpCompress.Common.Zip.Headers;
- namespace SharpCompress.Readers.Zip
- {
- public class ZipReader : AbstractReader<ZipEntry, ZipVolume>
- {
- private readonly StreamingZipHeaderFactory _headerFactory;
- private ZipReader(Stream stream, ReaderOptions options)
- : base(options, ArchiveType.Zip)
- {
- Volume = new ZipVolume(stream, options);
- _headerFactory = new StreamingZipHeaderFactory(options.Password, options.ArchiveEncoding);
- }
- public override ZipVolume Volume { get; }
- #region Open
- /// <summary>
- /// Opens a ZipReader for Non-seeking usage with a single volume
- /// </summary>
- /// <param name="stream"></param>
- /// <param name="options"></param>
- /// <returns></returns>
- public static ZipReader Open(Stream stream, ReaderOptions options = null)
- {
- stream.CheckNotNull("stream");
- return new ZipReader(stream, options ?? new ReaderOptions());
- }
- #endregion Open
- protected override IEnumerable<ZipEntry> GetEntries(Stream stream)
- {
- foreach (ZipHeader h in _headerFactory.ReadStreamHeader(stream))
- {
- if (h != null)
- {
- switch (h.ZipHeaderType)
- {
- case ZipHeaderType.LocalEntry:
- {
- yield return new ZipEntry(new StreamingZipFilePart(h as LocalEntryHeader,
- stream));
- }
- break;
- case ZipHeaderType.DirectoryEnd:
- {
- yield break;
- }
- }
- }
- }
- }
- }
- }
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