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