105 lines
2.6 KiB
C#
105 lines
2.6 KiB
C#
// UnzipArchive.cs
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//
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// Copyright (c) 2008 [copyright holders]
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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//
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using System;
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using System.IO;
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namespace zipsharp
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{
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class UnzipArchive : IDisposable
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{
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string[] files;
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internal bool FileActive {
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get; set;
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}
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string[] Files {
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get {
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if (files == null)
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files = NativeUnzip.GetFiles (Handle);
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return files;
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}
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}
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internal UnzipHandle Handle {
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get; private set;
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}
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ZipStream Stream {
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get; set;
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}
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public UnzipArchive (string filename)
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: this (File.Open (filename, FileMode.Open), true)
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{
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}
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public UnzipArchive (Stream stream)
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: this (stream, false)
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{
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}
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public UnzipArchive (Stream stream, bool ownsStream)
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{
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Stream = new ZipStream (stream, ownsStream);
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Handle = NativeUnzip.OpenArchive (Stream.IOFunctions);
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}
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public void Dispose ()
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{
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NativeUnzip.CloseArchive (Handle);
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Stream.Close ();
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}
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public System.IO.Packaging.CompressionOption GetCompressionLevel (string file)
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{
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using (UnzipReadStream stream = (UnzipReadStream) GetStream (file))
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return stream.CompressionLevel;
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}
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public string[] GetFiles ()
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{
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return (string []) Files.Clone ();
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}
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public Stream GetStream (string name)
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{
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foreach (string file in Files)
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{
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if (name.Equals(file, StringComparison.OrdinalIgnoreCase))
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{
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System.IO.Packaging.CompressionOption option;
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NativeUnzip.OpenFile (Handle, name, out option);
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return new UnzipReadStream (this, option);
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}
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}
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throw new Exception ("The file doesn't exist in the zip archive");
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}
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}
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}
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