513 lines
14 KiB
C#
513 lines
14 KiB
C#
// CoreUtil
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//
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// Copyright (C) 2012-2014 Daiyuu Nobori. All Rights Reserved.
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// Copyright (C) 2012-2014 SoftEther VPN Project at University of Tsukuba. All Rights Reserved.
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// Comments: Tetsuo Sugiyama, Ph.D.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// version 2 as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License version 2
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// THE LICENSE AGREEMENT IS ATTACHED ON THE SOURCE-CODE PACKAGE
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// AS "LICENSE.TXT" FILE. READ THE TEXT FILE IN ADVANCE TO USE THE SOFTWARE.
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//
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//
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// THIS SOFTWARE IS DEVELOPED IN JAPAN, AND DISTRIBUTED FROM JAPAN,
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// UNDER JAPANESE LAWS. YOU MUST AGREE IN ADVANCE TO USE, COPY, MODIFY,
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// MERGE, PUBLISH, DISTRIBUTE, SUBLICENSE, AND/OR SELL COPIES OF THIS
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// SOFTWARE, THAT ANY JURIDICAL DISPUTES WHICH ARE CONCERNED TO THIS
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// SOFTWARE OR ITS CONTENTS, AGAINST US (SOFTETHER PROJECT, SOFTETHER
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// CORPORATION, DAIYUU NOBORI OR OTHER SUPPLIERS), OR ANY JURIDICAL
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// DISPUTES AGAINST US WHICH ARE CAUSED BY ANY KIND OF USING, COPYING,
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// MODIFYING, MERGING, PUBLISHING, DISTRIBUTING, SUBLICENSING, AND/OR
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// SELLING COPIES OF THIS SOFTWARE SHALL BE REGARDED AS BE CONSTRUED AND
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// CONTROLLED BY JAPANESE LAWS, AND YOU MUST FURTHER CONSENT TO
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// EXCLUSIVE JURISDICTION AND VENUE IN THE COURTS SITTING IN TOKYO,
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// JAPAN. YOU MUST WAIVE ALL DEFENSES OF LACK OF PERSONAL JURISDICTION
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// AND FORUM NON CONVENIENS. PROCESS MAY BE SERVED ON EITHER PARTY IN
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// THE MANNER AUTHORIZED BY APPLICABLE LAW OR COURT RULE.
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//
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// USE ONLY IN JAPAN. DO NOT USE THIS SOFTWARE IN ANOTHER COUNTRY UNLESS
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// YOU HAVE A CONFIRMATION THAT THIS SOFTWARE DOES NOT VIOLATE ANY
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// CRIMINAL LAWS OR CIVIL RIGHTS IN THAT PARTICULAR COUNTRY. USING THIS
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// SOFTWARE IN OTHER COUNTRIES IS COMPLETELY AT YOUR OWN RISK. THE
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// SOFTETHER VPN PROJECT HAS DEVELOPED AND DISTRIBUTED THIS SOFTWARE TO
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// COMPLY ONLY WITH THE JAPANESE LAWS AND EXISTING CIVIL RIGHTS INCLUDING
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// PATENTS WHICH ARE SUBJECTS APPLY IN JAPAN. OTHER COUNTRIES' LAWS OR
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// CIVIL RIGHTS ARE NONE OF OUR CONCERNS NOR RESPONSIBILITIES. WE HAVE
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// NEVER INVESTIGATED ANY CRIMINAL REGULATIONS, CIVIL LAWS OR
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// INTELLECTUAL PROPERTY RIGHTS INCLUDING PATENTS IN ANY OF OTHER 200+
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// COUNTRIES AND TERRITORIES. BY NATURE, THERE ARE 200+ REGIONS IN THE
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// WORLD, WITH DIFFERENT LAWS. IT IS IMPOSSIBLE TO VERIFY EVERY
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// COUNTRIES' LAWS, REGULATIONS AND CIVIL RIGHTS TO MAKE THE SOFTWARE
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// COMPLY WITH ALL COUNTRIES' LAWS BY THE PROJECT. EVEN IF YOU WILL BE
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// SUED BY A PRIVATE ENTITY OR BE DAMAGED BY A PUBLIC SERVANT IN YOUR
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// COUNTRY, THE DEVELOPERS OF THIS SOFTWARE WILL NEVER BE LIABLE TO
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// RECOVER OR COMPENSATE SUCH DAMAGES, CRIMINAL OR CIVIL
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// RESPONSIBILITIES. NOTE THAT THIS LINE IS NOT LICENSE RESTRICTION BUT
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// JUST A STATEMENT FOR WARNING AND DISCLAIMER.
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//
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//
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// SOURCE CODE CONTRIBUTION
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// ------------------------
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//
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// Your contribution to SoftEther VPN Project is much appreciated.
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// Please send patches to us through GitHub.
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// Read the SoftEther VPN Patch Acceptance Policy in advance:
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// http://www.softether.org/5-download/src/9.patch
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//
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//
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// DEAR SECURITY EXPERTS
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// ---------------------
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//
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// If you find a bug or a security vulnerability please kindly inform us
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// about the problem immediately so that we can fix the security problem
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// to protect a lot of users around the world as soon as possible.
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//
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// Our e-mail address for security reports is:
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// softether-vpn-security [at] softether.org
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//
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// Please note that the above e-mail address is not a technical support
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// inquiry address. If you need technical assistance, please visit
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// http://www.softether.org/ and ask your question on the users forum.
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//
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// Thank you for your cooperation.
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//
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//
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// NO MEMORY OR RESOURCE LEAKS
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// ---------------------------
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//
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// The memory-leaks and resource-leaks verification under the stress
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// test has been passed before release this source code.
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using System;
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using System.Threading;
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using System.Data;
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using System.Data.Sql;
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using System.Data.SqlClient;
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using System.Data.SqlTypes;
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using System.Text;
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using System.Configuration;
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using System.Collections;
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using System.Collections.Generic;
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using System.Security.Cryptography;
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using System.Web;
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using System.Web.Security;
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using System.Web.UI;
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using System.Web.UI.WebControls;
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using System.Web.UI.WebControls.WebParts;
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using System.Web.UI.HtmlControls;
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using System.IO;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.Drawing.Drawing2D;
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using System.Runtime.InteropServices;
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namespace CoreUtil
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{
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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public struct ZipDataHeader
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{
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public uint Signature;
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public ushort NeedVer;
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public ushort Option;
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public ushort CompType;
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public ushort FileTime;
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public ushort FileDate;
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public uint Crc32;
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public uint CompSize;
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public uint UncompSize;
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public ushort FileNameLen;
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public ushort ExtraLen;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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public struct ZipDataFooter
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{
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public uint Signature;
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public uint Crc32;
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public uint CompSize;
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public uint UncompSize;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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public struct ZipDirHeader
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{
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public uint Signature;
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public ushort MadeVer;
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public ushort NeedVer;
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public ushort Option;
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public ushort CompType;
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public ushort FileTime;
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public ushort FileDate;
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public uint Crc32;
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public uint CompSize;
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public uint UncompSize;
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public ushort FileNameLen;
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public ushort ExtraLen;
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public ushort CommentLen;
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public ushort DiskNum;
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public ushort InAttr;
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public uint OutAttr;
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public uint HeaderPos;
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}
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[StructLayout(LayoutKind.Sequential, Pack = 1)]
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public struct ZipEndHeader
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{
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public uint Signature;
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public ushort DiskNum;
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public ushort StartDiskNum;
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public ushort DiskDirEntry;
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public ushort DirEntry;
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public uint DirSize;
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public uint StartPos;
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public ushort CommentLen;
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}
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public static class ZipUtil
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{
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static ZipUtil()
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{
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initCrc32();
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}
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static uint[] table;
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const int crcTableSize = 256;
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static void initCrc32()
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{
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table = new uint[crcTableSize];
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uint poly = 0xEDB88320;
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uint u, i, j;
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for (i = 0; i < 256; i++)
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{
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u = i;
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for (j = 0; j < 8; j++)
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{
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if ((u & 0x1) != 0)
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{
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u = (u >> 1) ^ poly;
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}
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else
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{
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u >>= 1;
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}
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}
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table[i] = u;
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}
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}
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public static uint Crc32(byte[] buf)
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{
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return Crc32(buf, 0, buf.Length);
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}
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public static uint Crc32(byte[] buf, int pos, int len)
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{
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return Crc32Finish(Crc32First(buf, pos, len));
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}
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public static uint Crc32First(byte[] buf, int pos, int len)
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{
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return Crc32Next(buf, pos, len, 0xffffffff);
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}
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public static uint Crc32Next(byte[] buf, int pos, int len, uint lastCrc32)
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{
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uint ret = lastCrc32;
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for (uint i = 0; i < len; i++)
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{
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ret = (ret >> 8) ^ table[buf[pos + i] ^ (ret & 0xff)];
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}
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return ret;
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}
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public static uint Crc32Finish(uint lastCrc32)
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{
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return ~lastCrc32;
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}
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}
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public class ZipPacker
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{
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public const uint Signature = 0x04034B50;
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public const uint SignatureEnd = 0x06054B50;
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public const ushort Version = 10;
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public const ushort VersionWithCompress = 20;
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public Encoding Encoding = Str.ShiftJisEncoding;
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class File
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{
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public string Name;
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public long Size;
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public DateTime DateTime;
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public FileAttributes Attributes;
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public long CurrentSize;
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public long CompressSize;
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public uint Crc32;
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public uint HeaderPos;
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public Encoding Encoding;
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public bool Compress;
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public CoreUtil.Internal.ZStream ZStream;
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public void WriteZipDataHeader(ref ZipDataHeader h, bool writeSizes)
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{
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h.Signature = Signature;
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h.NeedVer = Version;
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h.CompType = 0;
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h.FileTime = Util.DateTimeToDosTime(this.DateTime);
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h.FileDate = Util.DateTimeToDosDate(this.DateTime);
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h.Option = 8;
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if (writeSizes == false)
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{
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h.CompSize = h.UncompSize = 0;
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h.Crc32 = 0;
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if (this.Compress)
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{
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h.NeedVer = VersionWithCompress;
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h.CompType = 8;
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}
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}
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else
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{
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h.CompSize = h.UncompSize = (uint)this.Size;
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if (this.Compress)
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{
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h.CompSize = (uint)this.CompressSize;
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h.CompType = 8;
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}
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h.Crc32 = this.Crc32;
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}
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h.FileNameLen = (ushort)this.Encoding.GetByteCount(this.Name);
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h.ExtraLen = 0;
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}
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public void WriteZipDataFooter(ref ZipDataFooter h)
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{
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h.Signature = 0x08074B50;
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if (this.Compress == false)
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{
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h.CompSize = h.UncompSize = (uint)this.Size;
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}
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else
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{
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h.CompSize = (uint)this.CompressSize;
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h.UncompSize = (uint)this.Size;
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}
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h.Crc32 = this.Crc32;
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}
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}
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Fifo fifo;
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List<File> fileList;
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public Fifo GeneratedData
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{
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get
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{
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return this.fifo;
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}
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}
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public ZipPacker()
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{
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fifo = new Fifo();
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fileList = new List<File>();
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}
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File currentFile = null;
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public void AddFileSimple(string name, DateTime dt, FileAttributes attribute, byte[] data)
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{
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AddFileSimple(name, dt, attribute, data, false);
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}
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public void AddFileSimple(string name, DateTime dt, FileAttributes attribute, byte[] data, bool compress)
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{
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AddFileStart(name, data.Length, dt, attribute, compress);
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AddFileData(data, 0, data.Length);
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}
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public void AddFileStart(string name, long size, DateTime dt, FileAttributes attribute)
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{
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AddFileStart(name, size, dt, attribute, false);
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}
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public void AddFileStart(string name, long size, DateTime dt, FileAttributes attribute, bool compress)
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{
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if (currentFile != null)
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{
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throw new ApplicationException("currentFile != null");
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}
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name = name.Replace("/", "\\");
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File f = new File();
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f.Encoding = this.Encoding;
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f.Name = name;
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f.Size = size;
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f.DateTime = dt;
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f.Attributes = attribute;
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f.Compress = compress;
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this.fileList.Add(f);
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ZipDataHeader h = new ZipDataHeader();
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f.HeaderPos = (uint)fifo.TotalWriteSize;
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f.WriteZipDataHeader(ref h, false);
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fifo.Write(Util.StructToByte(h));
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fifo.Write(this.Encoding.GetBytes(f.Name));
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f.Crc32 = 0xffffffff;
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if (compress)
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{
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f.ZStream = new CoreUtil.Internal.ZStream();
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f.ZStream.deflateInit(-1, -15);
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}
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currentFile = f;
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}
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public long AddFileData(byte[] data, int pos, int len)
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{
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long totalSize = currentFile.CurrentSize + len;
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if (totalSize > currentFile.Size)
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{
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throw new ApplicationException("totalSize > currentFile.Size");
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}
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if (currentFile.Compress == false)
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{
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fifo.Write(data, pos, len);
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}
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else
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{
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CoreUtil.Internal.ZStream zs = currentFile.ZStream;
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byte[] srcData = Util.ExtractByteArray(data, pos, len);
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byte[] dstData = new byte[srcData.Length * 2 + 100];
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zs.next_in = srcData;
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zs.avail_in = srcData.Length;
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zs.next_in_index = 0;
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zs.next_out = dstData;
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zs.avail_out = dstData.Length;
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zs.next_out_index = 0;
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if (currentFile.Size == (currentFile.CurrentSize + len))
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{
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zs.deflate(CoreUtil.Internal.zlibConst.Z_FINISH);
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}
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else
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{
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zs.deflate(CoreUtil.Internal.zlibConst.Z_SYNC_FLUSH);
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}
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fifo.Write(dstData, 0, dstData.Length - zs.avail_out);
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currentFile.CompressSize += dstData.Length - zs.avail_out;
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Util.NoOP();
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}
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currentFile.CurrentSize += len;
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currentFile.Crc32 = ZipUtil.Crc32Next(data, pos, len, currentFile.Crc32);
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long ret = currentFile.Size - currentFile.CurrentSize;
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if (ret == 0)
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{
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currentFile.Crc32 = ~currentFile.Crc32;
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addFileFooter();
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currentFile = null;
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}
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return ret;
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}
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void addFileFooter()
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{
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ZipDataFooter f = new ZipDataFooter();
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currentFile.WriteZipDataFooter(ref f);
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fifo.Write(Util.StructToByte(f));
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}
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public void Finish()
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{
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long posStart = fifo.TotalWriteSize;
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foreach (File f in this.fileList)
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{
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ZipDirHeader d = new ZipDirHeader();
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d.Signature = 0x02014B50;// ZipPacker.Signature;
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d.MadeVer = Version;
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ZipDataHeader dh = new ZipDataHeader();
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f.WriteZipDataHeader(ref dh, true);
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if (f.Compress)
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{
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dh.CompType = 8;
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dh.CompSize = (uint)f.CompressSize;
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dh.NeedVer = ZipPacker.VersionWithCompress;
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}
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d.NeedVer = dh.NeedVer;
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d.Option = dh.Option;
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d.CompType = dh.CompType;
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d.FileTime = dh.FileTime;
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d.FileDate = dh.FileDate;
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d.Crc32 = dh.Crc32;
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d.CompSize = dh.CompSize;
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d.UncompSize = dh.UncompSize;
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d.FileNameLen = dh.FileNameLen;
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d.ExtraLen = dh.ExtraLen;
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d.CommentLen = 0;
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d.DiskNum = 0;
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d.InAttr = 0;
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d.OutAttr = (ushort)f.Attributes;
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d.HeaderPos = f.HeaderPos;
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fifo.Write(Util.StructToByte(d));
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fifo.Write(this.Encoding.GetBytes(f.Name));
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}
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long posEnd = fifo.TotalWriteSize;
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ZipEndHeader e = new ZipEndHeader();
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e.Signature = ZipPacker.SignatureEnd;
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e.DiskNum = e.StartDiskNum = 0;
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e.DiskDirEntry = e.DirEntry = (ushort)this.fileList.Count;
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e.DirSize = (uint)(posEnd - posStart);
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e.StartPos = (uint)posStart;
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e.CommentLen = 0;
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fifo.Write(Util.StructToByte(e));
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}
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}
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}
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// Developed by SoftEther VPN Project at University of Tsukuba in Japan.
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// Department of Computer Science has dozens of overly-enthusiastic geeks.
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// Join us: http://www.tsukuba.ac.jp/english/admission/
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