reorganizing a bit

UnRarDotNet/RarCompressionProvider.cs

@@ -0,0 +1,57 @@
+using System;
+using System.IO;
+using System.Collections.Generic;
+using CUETools.Compression;
+
+namespace CUETools.Compression.Rar
+{
+	[CompressionProviderClass("rar")]
+	public class RarCompressionProvider: ICompressionProvider
+	{
+		private string _archivePath;
+
+		public RarCompressionProvider(string path)
+		{
+			_archivePath = path;
+		}
+
+		public void Close()
+		{
+		}
+
+		~RarCompressionProvider()
+		{
+			Close();
+		}
+
+		public Stream Decompress(string file)
+		{
+			RarStream stream = new RarStream(_archivePath, file);
+			stream.PasswordRequired += PasswordRequired;
+			stream.ExtractionProgress += ExtractionProgress;
+			return stream;
+		}
+
+		public IEnumerable<string> Contents
+		{
+			get
+			{
+				using (Unrar _unrar = new Unrar())
+				{
+					_unrar.PasswordRequired += PasswordRequired;
+					_unrar.Open(_archivePath, Unrar.OpenMode.List);
+					while (_unrar.ReadHeader())
+					{
+						if (!_unrar.CurrentFile.IsDirectory)
+							yield return _unrar.CurrentFile.FileName;
+						_unrar.Skip();
+					}
+					_unrar.Close();
+				}
+			}
+		}
+
+		public event EventHandler<CompressionPasswordRequiredEventArgs> PasswordRequired;
+		public event EventHandler<CompressionExtractionProgressEventArgs> ExtractionProgress;
+	}
+}