// CoreUtil
// 
// Copyright (C) 2012-2014 Daiyuu Nobori. All Rights Reserved.
// Copyright (C) 2012-2014 SoftEther VPN Project at University of Tsukuba. All Rights Reserved.
// Comments: Tetsuo Sugiyama, Ph.D.
// 
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// version 2 as published by the Free Software Foundation.
// 
// 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 version 2
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// 
// THE LICENSE AGREEMENT IS ATTACHED ON THE SOURCE-CODE PACKAGE
// AS "LICENSE.TXT" FILE. READ THE TEXT FILE IN ADVANCE TO USE THE SOFTWARE.
// 
// 
// THIS SOFTWARE IS DEVELOPED IN JAPAN, AND DISTRIBUTED FROM JAPAN,
// UNDER JAPANESE LAWS. YOU MUST AGREE IN ADVANCE TO USE, COPY, MODIFY,
// MERGE, PUBLISH, DISTRIBUTE, SUBLICENSE, AND/OR SELL COPIES OF THIS
// SOFTWARE, THAT ANY JURIDICAL DISPUTES WHICH ARE CONCERNED TO THIS
// SOFTWARE OR ITS CONTENTS, AGAINST US (SOFTETHER PROJECT, SOFTETHER
// CORPORATION, DAIYUU NOBORI OR OTHER SUPPLIERS), OR ANY JURIDICAL
// DISPUTES AGAINST US WHICH ARE CAUSED BY ANY KIND OF USING, COPYING,
// MODIFYING, MERGING, PUBLISHING, DISTRIBUTING, SUBLICENSING, AND/OR
// SELLING COPIES OF THIS SOFTWARE SHALL BE REGARDED AS BE CONSTRUED AND
// CONTROLLED BY JAPANESE LAWS, AND YOU MUST FURTHER CONSENT TO
// EXCLUSIVE JURISDICTION AND VENUE IN THE COURTS SITTING IN TOKYO,
// JAPAN. YOU MUST WAIVE ALL DEFENSES OF LACK OF PERSONAL JURISDICTION
// AND FORUM NON CONVENIENS. PROCESS MAY BE SERVED ON EITHER PARTY IN
// THE MANNER AUTHORIZED BY APPLICABLE LAW OR COURT RULE.
// 
// USE ONLY IN JAPAN. DO NOT USE THIS SOFTWARE IN ANOTHER COUNTRY UNLESS
// YOU HAVE A CONFIRMATION THAT THIS SOFTWARE DOES NOT VIOLATE ANY
// CRIMINAL LAWS OR CIVIL RIGHTS IN THAT PARTICULAR COUNTRY. USING THIS
// SOFTWARE IN OTHER COUNTRIES IS COMPLETELY AT YOUR OWN RISK. THE
// SOFTETHER VPN PROJECT HAS DEVELOPED AND DISTRIBUTED THIS SOFTWARE TO
// COMPLY ONLY WITH THE JAPANESE LAWS AND EXISTING CIVIL RIGHTS INCLUDING
// PATENTS WHICH ARE SUBJECTS APPLY IN JAPAN. OTHER COUNTRIES' LAWS OR
// CIVIL RIGHTS ARE NONE OF OUR CONCERNS NOR RESPONSIBILITIES. WE HAVE
// NEVER INVESTIGATED ANY CRIMINAL REGULATIONS, CIVIL LAWS OR
// INTELLECTUAL PROPERTY RIGHTS INCLUDING PATENTS IN ANY OF OTHER 200+
// COUNTRIES AND TERRITORIES. BY NATURE, THERE ARE 200+ REGIONS IN THE
// WORLD, WITH DIFFERENT LAWS. IT IS IMPOSSIBLE TO VERIFY EVERY
// COUNTRIES' LAWS, REGULATIONS AND CIVIL RIGHTS TO MAKE THE SOFTWARE
// COMPLY WITH ALL COUNTRIES' LAWS BY THE PROJECT. EVEN IF YOU WILL BE
// SUED BY A PRIVATE ENTITY OR BE DAMAGED BY A PUBLIC SERVANT IN YOUR
// COUNTRY, THE DEVELOPERS OF THIS SOFTWARE WILL NEVER BE LIABLE TO
// RECOVER OR COMPENSATE SUCH DAMAGES, CRIMINAL OR CIVIL
// RESPONSIBILITIES. NOTE THAT THIS LINE IS NOT LICENSE RESTRICTION BUT
// JUST A STATEMENT FOR WARNING AND DISCLAIMER.
// 
// 
// SOURCE CODE CONTRIBUTION
// ------------------------
// 
// Your contribution to SoftEther VPN Project is much appreciated.
// Please send patches to us through GitHub.
// Read the SoftEther VPN Patch Acceptance Policy in advance:
// http://www.softether.org/5-download/src/9.patch
// 
// 
// DEAR SECURITY EXPERTS
// ---------------------
// 
// If you find a bug or a security vulnerability please kindly inform us
// about the problem immediately so that we can fix the security problem
// to protect a lot of users around the world as soon as possible.
// 
// Our e-mail address for security reports is:
// softether-vpn-security [at] softether.org
// 
// Please note that the above e-mail address is not a technical support
// inquiry address. If you need technical assistance, please visit
// http://www.softether.org/ and ask your question on the users forum.
// 
// Thank you for your cooperation.
// 
// 
// NO MEMORY OR RESOURCE LEAKS
// ---------------------------
// 
// The memory-leaks and resource-leaks verification under the stress
// test has been passed before release this source code.


using System;
using System.Threading;
using System.Data;
using System.Data.Sql;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using System.Text;
using System.Configuration;
using System.Collections;
using System.Collections.Generic;
using System.Security.Cryptography;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.Runtime.InteropServices;

namespace CoreUtil
{
	public enum PackerFileFormat
	{
		ZipRaw,
		ZipCompressed,
		Tar,
		TarGZip,
	}

	public delegate bool ProgressDelegate(string fileNameFullPath, string fileNameRelative, int currentFileNum, int totalFileNum);

	public static class Packer
	{
		public static byte[] PackDir(PackerFileFormat format, string rootDirPath, string appendPrefixDirName)
		{
			return PackDir(format, rootDirPath, appendPrefixDirName, null);
		}
		public static byte[] PackDir(PackerFileFormat format, string topDirPath, string appendPrefixDirName, ProgressDelegate proc)
		{
			string[] fileList = Directory.GetFiles(topDirPath, "*", SearchOption.AllDirectories);
			List<string> relativeFileList = new List<string>();

			foreach (string fileName in fileList)
			{
				string relativePath = IO.GetRelativeFileName(fileName, topDirPath);

				if (Str.IsEmptyStr(appendPrefixDirName) == false)
				{
					relativePath = IO.RemoteLastEnMark(appendPrefixDirName) + "\\" + relativePath;
				}

				relativeFileList.Add(relativePath);
			}

			return PackFiles(format, fileList, relativeFileList.ToArray(), proc);
		}

		public static byte[] PackFiles(PackerFileFormat format, string[] srcFileNameList, string[] relativeNameList)
		{
			return PackFiles(format, srcFileNameList, relativeNameList, null);
		}
		public static byte[] PackFiles(PackerFileFormat format, string[] srcFileNameList, string[] relativeNameList, ProgressDelegate proc)
		{
			if (srcFileNameList.Length != relativeNameList.Length)
			{
				throw new ApplicationException("srcFileNameList.Length != relativeNameList.Length");
			}

			int num = srcFileNameList.Length;
			int i;

			ZipPacker zip = new ZipPacker();
			TarPacker tar = new TarPacker();

			for (i = 0; i < num; i++)
			{
				if (proc != null)
				{
					bool ret = proc(srcFileNameList[i], relativeNameList[i], i, num);

					if (ret == false)
					{
						continue;
					}
				}

				byte[] srcData = File.ReadAllBytes(srcFileNameList[i]);
				DateTime date = File.GetLastWriteTime(srcFileNameList[i]);

				switch (format)
				{
					case PackerFileFormat.Tar:
					case PackerFileFormat.TarGZip:
						tar.AddFileSimple(relativeNameList[i], srcData, 0, srcData.Length, date);
						break;

					case PackerFileFormat.ZipRaw:
					case PackerFileFormat.ZipCompressed:
						zip.AddFileSimple(relativeNameList[i], date, FileAttributes.Normal, srcData, (format == PackerFileFormat.ZipCompressed));
						break;
				}
			}

			switch (format)
			{
				case PackerFileFormat.Tar:
					tar.Finish();
					return tar.GeneratedData.Read();

				case PackerFileFormat.TarGZip:
					tar.Finish();
					return tar.CompressToGZip();

				case PackerFileFormat.ZipCompressed:
				case PackerFileFormat.ZipRaw:
					zip.Finish();
					return zip.GeneratedData.Read();

				default:
					throw new ApplicationException("format");
			}
		}
	}
}