* Write prim archives out as v7 tar files temporarily for testing purposes - not even gzipping yet!
* Using hacked up code to create the correct tar archive headers - this stuff should really go away again before too long * No user functionality yet0.6.0-stable
Justin Clarke Casey
parent
46d91df2a8
commit
69fdd0d3e8
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@ -70,7 +70,7 @@ namespace OpenSim
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/// <summary>
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/// The file use to load and save an opensim archive if none has been specified
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/// </summary>
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protected const string DEFAULT_OAR_BACKUP_FILENAME = "scene.oar.zip";
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protected const string DEFAULT_OAR_BACKUP_FILENAME = "scene.oar.tar";
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public string m_physicsEngine;
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public string m_meshEngineName;
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@ -97,7 +97,18 @@ namespace OpenSim.Region.Environment
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protected internal void ReceivedAllAssets(IDictionary<LLUUID, AssetBase> assets)
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{
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m_log.DebugFormat("[ARCHIVER]: Received all {0} textures required", assets.Count);
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m_log.DebugFormat("[ARCHIVER]: Received all {0} textures required", assets.Count);
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// XXX: Shouldn't hijack the asset async callback thread like this - this is only temporary
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TarArchive archive = new TarArchive();
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foreach (LLUUID uuid in assets.Keys)
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{
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archive.AddFile(uuid.ToString(), assets[uuid].Data);
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}
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archive.WriteTar(m_savePath);
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}
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/// <summary>
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@ -0,0 +1,174 @@
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/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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using System.Reflection;
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using log4net;
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namespace OpenSim.Region.Environment
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{
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/// <summary>
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/// Temporary code to produce a tar archive in tar v7 format
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/// </summary>
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public class TarArchive
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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protected Dictionary<string, byte[]> m_files = new Dictionary<string, byte[]>();
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protected static System.Text.ASCIIEncoding m_asciiEncoding = new System.Text.ASCIIEncoding();
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/// <summary>
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/// Add a file to the tar archive
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/// </summary>
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/// <param name="filePath"></param>
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/// <param name="data"></param>
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public void AddFile(string filePath, byte[] data)
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{
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m_files[filePath] = data;
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}
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/// <summary>
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/// Write the raw tar archive data to a file
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/// </summary>
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/// <returns></returns>
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public void WriteTar(string archivePath)
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{
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BinaryWriter bw = new BinaryWriter(new FileStream(archivePath, FileMode.Create));
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foreach (string filePath in m_files.Keys)
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{
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byte[] header = new byte[512];
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byte[] data = m_files[filePath];
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//string filePath = "test.txt";
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//byte[] data = m_asciiEncoding.GetBytes("hello\n");
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// file path field (100)
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byte[] nameBytes = m_asciiEncoding.GetBytes(filePath);
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int nameSize = (nameBytes.Length >= 100) ? 100 : nameBytes.Length;
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Array.Copy(nameBytes, header, nameSize);
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// file mode (8)
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byte[] modeBytes = m_asciiEncoding.GetBytes("0000644");
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Array.Copy(modeBytes, 0, header, 100, 7);
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// owner user id (8)
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byte[] ownerIdBytes = m_asciiEncoding.GetBytes("0000764");
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Array.Copy(ownerIdBytes, 0, header, 108, 7);
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// group user id (8)
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byte[] groupIdBytes = m_asciiEncoding.GetBytes("0000764");
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Array.Copy(groupIdBytes, 0, header, 116, 7);
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// file size in bytes (12)
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int fileSize = data.Length;
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m_log.DebugFormat("[TAR ARCHIVE]: File size of {0} is {1}", filePath, fileSize);
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byte[] fileSizeBytes = ConvertDecimalToPaddedOctalBytes(fileSize, 11);
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Array.Copy(fileSizeBytes, 0, header, 124, 11);
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// last modification time (12)
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byte[] lastModTimeBytes = m_asciiEncoding.GetBytes("11017037332");
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Array.Copy(lastModTimeBytes, 0, header, 136, 11);
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// link indicator (1)
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//header[156] = m_asciiEncoding.GetBytes("0")[0];
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header[156] = 0;
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Array.Copy(m_asciiEncoding.GetBytes("0000000"), 0, header, 329, 7);
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Array.Copy(m_asciiEncoding.GetBytes("0000000"), 0, header, 337, 7);
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// check sum for header block (8) [calculated last]
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Array.Copy(m_asciiEncoding.GetBytes(" "), 0, header, 148, 8);
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int checksum = 0;
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foreach (byte b in header)
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{
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checksum += b;
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}
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m_log.DebugFormat("[TAR ARCHIVE]: Decimal header checksum is {0}", checksum);
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byte[] checkSumBytes = ConvertDecimalToPaddedOctalBytes(checksum, 6);
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//byte[] checkSumBytes = m_asciiEncoding.GetBytes("007520");
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Array.Copy(checkSumBytes, 0, header, 148, 6);
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header[154] = 0;
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// Write out header
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bw.Write(header);
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// Write out data
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bw.Write(data);
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int paddingRequired = 512 - (data.Length % 512);
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if (paddingRequired > 0)
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{
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m_log.DebugFormat("Padding data with {0} bytes", paddingRequired);
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byte[] padding = new byte[paddingRequired];
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bw.Write(padding);
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}
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}
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// Write two consecutive 0 blocks to end the archive
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byte[] finalZeroPadding = new byte[1024];
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bw.Write(finalZeroPadding);
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bw.Close();
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}
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public static byte[] ConvertDecimalToPaddedOctalBytes(int d, int padding)
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{
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string oString = "";
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while (d > 0)
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{
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oString = Convert.ToString((byte)'0' + d & 7) + oString;
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d >>= 3;
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}
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while (oString.Length < padding)
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{
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oString = "0" + oString;
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}
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m_log.DebugFormat("[TAR ARCHIVE]: oString is {0}", oString);
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byte[] oBytes = m_asciiEncoding.GetBytes(oString);
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return oBytes;
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}
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}
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}
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