DotNetNuke Module Packager

//////////////////////////////////////////////////////////////////////////
// DNN Module Packager 1.0
// Copyright (C) 2004-2005 Matt Long
// 
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// 
// You can contact the author at: matt.long@matthew-long.com
//
//////////////////////////////////////////////////////////////////////////

using System;
using ICSharpCode.SharpZipLib.Checksums;
using ICSharpCode.SharpZipLib.Zip;
using System.IO;

namespace SkyeRoad.DNNTools
{
	/// <summary>
	/// Summary description for ZipUtility.
	/// </summary>
	public class ZipUtility
	{
		public ZipUtility()
		{
			//
			// TODO: Add constructor logic here
			//
		}
		public static void Compress( string outputFilePath, string folderPath )
		{
			if( !Directory.Exists( folderPath ) )
			{
				return;
			}
			DirectoryInfo di = new DirectoryInfo( folderPath );
			FileInfo[] fis = di.GetFiles();
			FileStream fZip =File.Create( outputFilePath );

			ZipOutputStream zipOStream = new ZipOutputStream(fZip);
			zipOStream.SetLevel(9);
            
			foreach(FileInfo fi in fis)
			{
				FileStream fs = File.OpenRead( fi.FullName );
                
				byte[] buffer = new byte[fs.Length];
				fs.Read(buffer , 0, buffer .Length);
				fs.Close();
                    
				ZipEntry entry = new ZipEntry((fi.Name));
				zipOStream.PutNextEntry(entry);
				zipOStream.Write(buffer , 0, buffer .Length);
				FileSystemEventArgs args = new FileSystemEventArgs( WatcherChangeTypes.Created, di.FullName, fi.Name );
			} 
			zipOStream.Finish();
			zipOStream.Close();
			fZip.Close();
		}

		public static void Extract(string zipFileName, string extractLocation, bool overWrite, bool createFolders)
		{
			string myExtractLocation = extractLocation;
			if (myExtractLocation == "")
				myExtractLocation = Directory.GetCurrentDirectory();
			if (!myExtractLocation.EndsWith("\\"))
				myExtractLocation = myExtractLocation + "\\";
			ZipInputStream s = new ZipInputStream(File.OpenRead(zipFileName));		
			ZipEntry theEntry;

			// Iterate through the list of files in the archive
			while ((theEntry = s.GetNextEntry()) != null) 
			{									

				string directoryName = "";
				string pathToZip = "";
				pathToZip = theEntry.Name;

				if (createFolders && (pathToZip != ""))
					directoryName = Path.GetDirectoryName(pathToZip) + "\\";
				string fileName = Path.GetFileName(pathToZip);
				Directory.CreateDirectory(myExtractLocation + directoryName);
				if (fileName != "")
				{
					// If the file exists and the overwrite flag is set to true, or the file 
					// doesn't exist, create the file.
					if ( (File.Exists(myExtractLocation + directoryName + fileName) && overWrite) ||
						(!File.Exists(myExtractLocation + directoryName + fileName)) )
					{

						FileStream streamWriter = File.Create(myExtractLocation + directoryName + fileName);			
						int size = 2048;
						byte[] data = new byte[2048];
						while (true) 
						{
							size = s.Read(data, 0, data.Length);
							if (size > 0) 
								streamWriter.Write(data, 0, size);
							else 
								break;
						}			
						streamWriter.Close();
						// Add the current file to the list of files created so they can be deleted
						// later.
					}
					else
						System.Console.WriteLine( "File Already Exists: \r\r" + 
							myExtractLocation + directoryName + fileName +
							"\r\rIgnoring File. . .");
				}
			}			
			s.Close();
		}
	}
}