89 lines
3.1 KiB
C#
89 lines
3.1 KiB
C#
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using System.IO;
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using SharpCompress.Common;
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using SharpCompress.IO;
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namespace SharpCompress.Archive
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{
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internal static class IArchiveEntryExtensions
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{
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public static void WriteTo(this IArchiveEntry archiveEntry, Stream streamToWriteTo)
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{
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if (archiveEntry.Archive.Type == ArchiveType.Rar && archiveEntry.Archive.IsSolid)
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{
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throw new InvalidFormatException("Cannot use Archive random access on SOLID Rar files.");
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}
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if (archiveEntry.IsDirectory)
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{
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throw new ExtractionException("Entry is a file directory and cannot be extracted.");
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}
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var streamListener = archiveEntry.Archive as IArchiveExtractionListener;
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streamListener.EnsureEntriesLoaded();
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streamListener.FireEntryExtractionBegin(archiveEntry);
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streamListener.FireFilePartExtractionBegin(archiveEntry.Key, archiveEntry.Size, archiveEntry.CompressedSize);
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var entryStream = archiveEntry.OpenEntryStream();
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if (entryStream == null)
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{
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return;
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}
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using(entryStream)
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using (Stream s = new ListeningStream(streamListener, entryStream))
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{
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s.TransferTo(streamToWriteTo);
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}
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streamListener.FireEntryExtractionEnd(archiveEntry);
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}
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#if !PORTABLE && !NETFX_CORE
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/// <summary>
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/// Extract to specific directory, retaining filename
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/// </summary>
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public static void WriteToDirectory(this IArchiveEntry entry, string destinationDirectory,
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ExtractOptions options = ExtractOptions.Overwrite)
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{
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string destinationFileName;
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string file = Path.GetFileName(entry.Key);
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if (options.HasFlag(ExtractOptions.ExtractFullPath))
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{
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string folder = Path.GetDirectoryName(entry.Key);
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string destdir = Path.Combine(destinationDirectory, folder);
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if (!Directory.Exists(destdir))
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{
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Directory.CreateDirectory(destdir);
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}
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destinationFileName = Path.Combine(destdir, file);
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}
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else
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{
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destinationFileName = Path.Combine(destinationDirectory, file);
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}
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entry.WriteToFile(destinationFileName, options);
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}
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/// <summary>
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/// Extract to specific file
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/// </summary>
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public static void WriteToFile(this IArchiveEntry entry, string destinationFileName,
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ExtractOptions options = ExtractOptions.Overwrite)
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{
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if (entry.IsDirectory)
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{
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return;
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}
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FileMode fm = FileMode.Create;
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if (!options.HasFlag(ExtractOptions.Overwrite))
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{
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fm = FileMode.CreateNew;
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}
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using (FileStream fs = File.Open(destinationFileName, fm))
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{
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entry.WriteTo(fs);
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}
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}
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#endif
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}
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}
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