642 lines
27 KiB
C#
642 lines
27 KiB
C#
/*
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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 OpenSimulator 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.IO.Compression;
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using System.Reflection;
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using System.Text.RegularExpressions;
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using System.Threading;
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using System.Xml;
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using log4net;
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using OpenMetaverse;
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using OpenSim.Framework;
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using OpenSim.Framework.Serialization;
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using OpenSim.Region.CoreModules.World.Terrain;
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using OpenSim.Region.Framework.Interfaces;
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using OpenSim.Region.Framework.Scenes;
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using Ionic.Zlib;
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using GZipStream = Ionic.Zlib.GZipStream;
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using CompressionMode = Ionic.Zlib.CompressionMode;
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using OpenSim.Framework.Serialization.External;
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using PermissionMask = OpenSim.Framework.PermissionMask;
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namespace OpenSim.Region.CoreModules.World.Archiver
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{
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/// <summary>
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/// Prepare to write out an archive.
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/// </summary>
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public class ArchiveWriteRequest
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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/// <summary>
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/// The minimum major version of OAR that we can write.
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/// </summary>
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public static int MIN_MAJOR_VERSION = 0;
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/// <summary>
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/// The maximum major version of OAR that we can write.
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/// </summary>
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public static int MAX_MAJOR_VERSION = 1;
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/// <summary>
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/// Whether we're saving a multi-region archive.
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/// </summary>
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public bool MultiRegionFormat { get; set; }
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/// <summary>
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/// Determine whether this archive will save assets. Default is true.
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/// </summary>
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public bool SaveAssets { get; set; }
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/// <summary>
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/// Determines which objects will be included in the archive, according to their permissions.
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/// Default is null, meaning no permission checks.
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/// </summary>
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public string CheckPermissions { get; set; }
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protected Scene m_rootScene;
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protected Stream m_saveStream;
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protected TarArchiveWriter m_archiveWriter;
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protected Guid m_requestId;
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protected Dictionary<string, object> m_options;
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="module">Calling module</param>
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/// <param name="savePath">The path to which to save data.</param>
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/// <param name="requestId">The id associated with this request</param>
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/// <exception cref="System.IO.IOException">
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/// If there was a problem opening a stream for the file specified by the savePath
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/// </exception>
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public ArchiveWriteRequest(Scene scene, string savePath, Guid requestId) : this(scene, requestId)
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{
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try
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{
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m_saveStream = new GZipStream(new FileStream(savePath, FileMode.Create), CompressionMode.Compress, CompressionLevel.BestCompression);
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}
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catch (EntryPointNotFoundException e)
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{
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m_log.ErrorFormat(
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"[ARCHIVER]: Mismatch between Mono and zlib1g library version when trying to create compression stream."
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+ "If you've manually installed Mono, have you appropriately updated zlib1g as well?");
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m_log.ErrorFormat("{0} {1}", e.Message, e.StackTrace);
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}
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}
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/// <summary>
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/// Constructor.
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/// </summary>
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/// <param name="scene">The root scene to archive</param>
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/// <param name="saveStream">The stream to which to save data.</param>
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/// <param name="requestId">The id associated with this request</param>
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public ArchiveWriteRequest(Scene scene, Stream saveStream, Guid requestId) : this(scene, requestId)
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{
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m_saveStream = saveStream;
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}
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protected ArchiveWriteRequest(Scene scene, Guid requestId)
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{
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m_rootScene = scene;
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m_requestId = requestId;
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m_archiveWriter = null;
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MultiRegionFormat = false;
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SaveAssets = true;
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CheckPermissions = null;
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}
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/// <summary>
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/// Archive the region requested.
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/// </summary>
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/// <exception cref="System.IO.IOException">if there was an io problem with creating the file</exception>
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public void ArchiveRegion(Dictionary<string, object> options)
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{
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m_options = options;
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if (options.ContainsKey("all") && (bool)options["all"])
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MultiRegionFormat = true;
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if (options.ContainsKey("noassets") && (bool)options["noassets"])
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SaveAssets = false;
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Object temp;
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if (options.TryGetValue("checkPermissions", out temp))
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CheckPermissions = (string)temp;
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// Find the regions to archive
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ArchiveScenesGroup scenesGroup = new ArchiveScenesGroup();
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if (MultiRegionFormat)
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{
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m_log.InfoFormat("[ARCHIVER]: Saving {0} regions", SceneManager.Instance.Scenes.Count);
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SceneManager.Instance.ForEachScene(delegate(Scene scene)
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{
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scenesGroup.AddScene(scene);
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});
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}
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else
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{
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scenesGroup.AddScene(m_rootScene);
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}
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scenesGroup.CalcSceneLocations();
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m_archiveWriter = new TarArchiveWriter(m_saveStream);
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try
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{
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// Write out control file. It should be first so that it will be found ASAP when loading the file.
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m_archiveWriter.WriteFile(ArchiveConstants.CONTROL_FILE_PATH, CreateControlFile(scenesGroup));
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m_log.InfoFormat("[ARCHIVER]: Added control file to archive.");
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// Archive the regions
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Dictionary<UUID, sbyte> assetUuids = new Dictionary<UUID, sbyte>();
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scenesGroup.ForEachScene(delegate(Scene scene)
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{
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string regionDir = MultiRegionFormat ? scenesGroup.GetRegionDir(scene.RegionInfo.RegionID) : "";
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ArchiveOneRegion(scene, regionDir, assetUuids);
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});
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// Archive the assets
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if (SaveAssets)
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{
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m_log.DebugFormat("[ARCHIVER]: Saving {0} assets", assetUuids.Count);
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// Asynchronously request all the assets required to perform this archive operation
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AssetsRequest ar
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= new AssetsRequest(
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new AssetsArchiver(m_archiveWriter), assetUuids,
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m_rootScene.AssetService, m_rootScene.UserAccountService,
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m_rootScene.RegionInfo.ScopeID, options, ReceivedAllAssets);
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Util.RunThreadNoTimeout(o => ar.Execute(), "AssetsRequest", null);
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// CloseArchive() will be called from ReceivedAllAssets()
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}
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else
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{
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m_log.DebugFormat("[ARCHIVER]: Not saving assets since --noassets was specified");
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CloseArchive(string.Empty);
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}
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}
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catch (Exception e)
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{
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CloseArchive(e.Message);
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throw;
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}
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}
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private void ArchiveOneRegion(Scene scene, string regionDir, Dictionary<UUID, sbyte> assetUuids)
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{
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m_log.InfoFormat("[ARCHIVER]: Writing region {0}", scene.RegionInfo.RegionName);
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EntityBase[] entities = scene.GetEntities();
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List<SceneObjectGroup> sceneObjects = new List<SceneObjectGroup>();
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int numObjectsSkippedPermissions = 0;
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// Filter entities so that we only have scene objects.
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// FIXME: Would be nicer to have this as a proper list in SceneGraph, since lots of methods
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// end up having to do this
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IPermissionsModule permissionsModule = scene.RequestModuleInterface<IPermissionsModule>();
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foreach (EntityBase entity in entities)
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{
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if (entity is SceneObjectGroup)
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{
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SceneObjectGroup sceneObject = (SceneObjectGroup)entity;
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if (!sceneObject.IsDeleted && !sceneObject.IsAttachment)
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{
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if (!CanUserArchiveObject(scene.RegionInfo.EstateSettings.EstateOwner, sceneObject, CheckPermissions, permissionsModule))
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{
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// The user isn't allowed to copy/transfer this object, so it will not be included in the OAR.
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++numObjectsSkippedPermissions;
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}
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else
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{
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sceneObjects.Add(sceneObject);
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}
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}
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}
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}
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if (SaveAssets)
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{
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UuidGatherer assetGatherer = new UuidGatherer(scene.AssetService);
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int prevAssets = assetUuids.Count;
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foreach (SceneObjectGroup sceneObject in sceneObjects)
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{
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assetGatherer.GatherAssetUuids(sceneObject, assetUuids);
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}
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m_log.DebugFormat(
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"[ARCHIVER]: {0} scene objects to serialize requiring save of {1} assets",
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sceneObjects.Count, assetUuids.Count - prevAssets);
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}
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if (numObjectsSkippedPermissions > 0)
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{
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m_log.DebugFormat(
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"[ARCHIVER]: {0} scene objects skipped due to lack of permissions",
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numObjectsSkippedPermissions);
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}
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// Make sure that we also request terrain texture assets
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RegionSettings regionSettings = scene.RegionInfo.RegionSettings;
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if (regionSettings.TerrainTexture1 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_1)
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assetUuids[regionSettings.TerrainTexture1] = (sbyte)AssetType.Texture;
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if (regionSettings.TerrainTexture2 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_2)
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assetUuids[regionSettings.TerrainTexture2] = (sbyte)AssetType.Texture;
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if (regionSettings.TerrainTexture3 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_3)
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assetUuids[regionSettings.TerrainTexture3] = (sbyte)AssetType.Texture;
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if (regionSettings.TerrainTexture4 != RegionSettings.DEFAULT_TERRAIN_TEXTURE_4)
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assetUuids[regionSettings.TerrainTexture4] = (sbyte)AssetType.Texture;
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Save(scene, sceneObjects, regionDir);
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}
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/// <summary>
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/// Checks whether the user has permission to export an object group to an OAR.
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/// </summary>
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/// <param name="user">The user</param>
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/// <param name="objGroup">The object group</param>
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/// <param name="checkPermissions">Which permissions to check: "C" = Copy, "T" = Transfer</param>
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/// <param name="permissionsModule">The scene's permissions module</param>
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/// <returns>Whether the user is allowed to export the object to an OAR</returns>
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private bool CanUserArchiveObject(UUID user, SceneObjectGroup objGroup, string checkPermissions, IPermissionsModule permissionsModule)
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{
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if (checkPermissions == null)
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return true;
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if (permissionsModule == null)
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return true; // this shouldn't happen
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// Check whether the user is permitted to export all of the parts in the SOG. If any
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// part can't be exported then the entire SOG can't be exported.
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bool permitted = true;
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//int primNumber = 1;
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foreach (SceneObjectPart obj in objGroup.Parts)
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{
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uint perm;
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PermissionClass permissionClass = permissionsModule.GetPermissionClass(user, obj);
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switch (permissionClass)
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{
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case PermissionClass.Owner:
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perm = obj.BaseMask;
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break;
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case PermissionClass.Group:
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perm = obj.GroupMask | obj.EveryoneMask;
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break;
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case PermissionClass.Everyone:
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default:
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perm = obj.EveryoneMask;
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break;
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}
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bool canCopy = (perm & (uint)PermissionMask.Copy) != 0;
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bool canTransfer = (perm & (uint)PermissionMask.Transfer) != 0;
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// Special case: if Everyone can copy the object then this implies it can also be
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// Transferred.
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// However, if the user is the Owner then we don't check EveryoneMask, because it seems that the mask
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// always (incorrectly) includes the Copy bit set in this case. But that's a mistake: the viewer
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// does NOT show that the object has Everyone-Copy permissions, and doesn't allow it to be copied.
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if (permissionClass != PermissionClass.Owner)
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canTransfer |= (obj.EveryoneMask & (uint)PermissionMask.Copy) != 0;
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bool partPermitted = true;
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if (checkPermissions.Contains("C") && !canCopy)
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partPermitted = false;
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if (checkPermissions.Contains("T") && !canTransfer)
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partPermitted = false;
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// If the user is the Creator of the object then it can always be included in the OAR
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bool creator = (obj.CreatorID.Guid == user.Guid);
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if (creator)
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partPermitted = true;
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//string name = (objGroup.PrimCount == 1) ? objGroup.Name : string.Format("{0} ({1}/{2})", obj.Name, primNumber, objGroup.PrimCount);
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//m_log.DebugFormat("[ARCHIVER]: Object permissions: {0}: Base={1:X4}, Owner={2:X4}, Everyone={3:X4}, permissionClass={4}, checkPermissions={5}, canCopy={6}, canTransfer={7}, creator={8}, permitted={9}",
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// name, obj.BaseMask, obj.OwnerMask, obj.EveryoneMask,
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// permissionClass, checkPermissions, canCopy, canTransfer, creator, partPermitted);
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if (!partPermitted)
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{
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permitted = false;
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break;
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}
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//++primNumber;
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}
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return permitted;
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}
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/// <summary>
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/// Create the control file.
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/// </summary>
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/// <returns></returns>
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public string CreateControlFile(ArchiveScenesGroup scenesGroup)
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{
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int majorVersion;
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int minorVersion;
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if (MultiRegionFormat)
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{
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majorVersion = MAX_MAJOR_VERSION;
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minorVersion = 0;
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}
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else
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{
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// To support older versions of OpenSim, we continue to create single-region OARs
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// using the old file format. In the future this format will be discontinued.
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majorVersion = 0;
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minorVersion = 8;
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}
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//
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// if (m_options.ContainsKey("version"))
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// {
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// string[] parts = m_options["version"].ToString().Split('.');
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// if (parts.Length >= 1)
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// {
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// majorVersion = Int32.Parse(parts[0]);
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//
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// if (parts.Length >= 2)
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// minorVersion = Int32.Parse(parts[1]);
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// }
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// }
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//
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// if (majorVersion < MIN_MAJOR_VERSION || majorVersion > MAX_MAJOR_VERSION)
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// {
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// throw new Exception(
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// string.Format(
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// "OAR version number for save must be between {0} and {1}",
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// MIN_MAJOR_VERSION, MAX_MAJOR_VERSION));
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// }
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// else if (majorVersion == MAX_MAJOR_VERSION)
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// {
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// // Force 1.0
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// minorVersion = 0;
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// }
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// else if (majorVersion == MIN_MAJOR_VERSION)
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// {
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// // Force 0.4
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// minorVersion = 4;
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// }
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m_log.InfoFormat("[ARCHIVER]: Creating version {0}.{1} OAR", majorVersion, minorVersion);
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if (majorVersion == 1)
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{
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m_log.WarnFormat("[ARCHIVER]: Please be aware that version 1.0 OARs are not compatible with OpenSim versions prior to 0.7.4. Do not use the --all option if you want to produce a compatible OAR");
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}
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String s;
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using (StringWriter sw = new StringWriter())
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{
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using (XmlTextWriter xtw = new XmlTextWriter(sw))
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{
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xtw.Formatting = Formatting.Indented;
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xtw.WriteStartDocument();
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xtw.WriteStartElement("archive");
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xtw.WriteAttributeString("major_version", majorVersion.ToString());
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xtw.WriteAttributeString("minor_version", minorVersion.ToString());
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xtw.WriteStartElement("creation_info");
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DateTime now = DateTime.UtcNow;
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TimeSpan t = now - new DateTime(1970, 1, 1);
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xtw.WriteElementString("datetime", ((int)t.TotalSeconds).ToString());
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if (!MultiRegionFormat)
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xtw.WriteElementString("id", m_rootScene.RegionInfo.RegionID.ToString());
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xtw.WriteEndElement();
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xtw.WriteElementString("assets_included", SaveAssets.ToString());
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if (MultiRegionFormat)
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{
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WriteRegionsManifest(scenesGroup, xtw);
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}
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else
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{
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xtw.WriteStartElement("region_info");
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WriteRegionInfo(m_rootScene, xtw);
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xtw.WriteEndElement();
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}
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xtw.WriteEndElement();
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xtw.Flush();
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}
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s = sw.ToString();
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}
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return s;
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}
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/// <summary>
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/// Writes the list of regions included in a multi-region OAR.
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/// </summary>
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private static void WriteRegionsManifest(ArchiveScenesGroup scenesGroup, XmlTextWriter xtw)
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{
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xtw.WriteStartElement("regions");
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// Write the regions in order: rows from South to North, then regions from West to East.
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// The list of regions can have "holes"; we write empty elements in their position.
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for (uint y = (uint)scenesGroup.Rect.Top; y < scenesGroup.Rect.Bottom; ++y)
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{
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SortedDictionary<uint, Scene> row;
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if (scenesGroup.Regions.TryGetValue(y, out row))
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{
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xtw.WriteStartElement("row");
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for (uint x = (uint)scenesGroup.Rect.Left; x < scenesGroup.Rect.Right; ++x)
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{
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Scene scene;
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if (row.TryGetValue(x, out scene))
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{
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xtw.WriteStartElement("region");
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xtw.WriteElementString("id", scene.RegionInfo.RegionID.ToString());
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xtw.WriteElementString("dir", scenesGroup.GetRegionDir(scene.RegionInfo.RegionID));
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WriteRegionInfo(scene, xtw);
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xtw.WriteEndElement();
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}
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else
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{
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// Write a placeholder for a missing region
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xtw.WriteElementString("region", "");
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}
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}
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xtw.WriteEndElement();
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}
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else
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{
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// Write a placeholder for a missing row
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xtw.WriteElementString("row", "");
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}
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|
}
|
|
|
|
xtw.WriteEndElement(); // "regions"
|
|
}
|
|
|
|
protected static void WriteRegionInfo(Scene scene, XmlTextWriter xtw)
|
|
{
|
|
bool isMegaregion;
|
|
Vector2 size;
|
|
|
|
IRegionCombinerModule rcMod = scene.RequestModuleInterface<IRegionCombinerModule>();
|
|
|
|
if (rcMod != null)
|
|
isMegaregion = rcMod.IsRootForMegaregion(scene.RegionInfo.RegionID);
|
|
else
|
|
isMegaregion = false;
|
|
|
|
if (isMegaregion)
|
|
size = rcMod.GetSizeOfMegaregion(scene.RegionInfo.RegionID);
|
|
else
|
|
size = new Vector2((float)scene.RegionInfo.RegionSizeX, (float)scene.RegionInfo.RegionSizeY);
|
|
|
|
xtw.WriteElementString("is_megaregion", isMegaregion.ToString());
|
|
xtw.WriteElementString("size_in_meters", string.Format("{0},{1}", size.X, size.Y));
|
|
}
|
|
|
|
protected void Save(Scene scene, List<SceneObjectGroup> sceneObjects, string regionDir)
|
|
{
|
|
if (regionDir != string.Empty)
|
|
regionDir = ArchiveConstants.REGIONS_PATH + regionDir + "/";
|
|
|
|
m_log.InfoFormat("[ARCHIVER]: Adding region settings to archive.");
|
|
|
|
// Write out region settings
|
|
string settingsPath = String.Format("{0}{1}{2}.xml",
|
|
regionDir, ArchiveConstants.SETTINGS_PATH, scene.RegionInfo.RegionName);
|
|
m_archiveWriter.WriteFile(settingsPath, RegionSettingsSerializer.Serialize(scene.RegionInfo.RegionSettings));
|
|
|
|
m_log.InfoFormat("[ARCHIVER]: Adding parcel settings to archive.");
|
|
|
|
// Write out land data (aka parcel) settings
|
|
List<ILandObject> landObjects = scene.LandChannel.AllParcels();
|
|
foreach (ILandObject lo in landObjects)
|
|
{
|
|
LandData landData = lo.LandData;
|
|
string landDataPath
|
|
= String.Format("{0}{1}", regionDir, ArchiveConstants.CreateOarLandDataPath(landData));
|
|
m_archiveWriter.WriteFile(landDataPath, LandDataSerializer.Serialize(landData, m_options));
|
|
}
|
|
|
|
m_log.InfoFormat("[ARCHIVER]: Adding terrain information to archive.");
|
|
|
|
// Write out terrain
|
|
string terrainPath = String.Format("{0}{1}{2}.r32",
|
|
regionDir, ArchiveConstants.TERRAINS_PATH, scene.RegionInfo.RegionName);
|
|
|
|
using (MemoryStream ms = new MemoryStream())
|
|
{
|
|
scene.RequestModuleInterface<ITerrainModule>().SaveToStream(terrainPath, ms);
|
|
m_archiveWriter.WriteFile(terrainPath, ms.ToArray());
|
|
}
|
|
|
|
m_log.InfoFormat("[ARCHIVER]: Adding scene objects to archive.");
|
|
|
|
// Write out scene object metadata
|
|
IRegionSerialiserModule serializer = scene.RequestModuleInterface<IRegionSerialiserModule>();
|
|
foreach (SceneObjectGroup sceneObject in sceneObjects)
|
|
{
|
|
//m_log.DebugFormat("[ARCHIVER]: Saving {0} {1}, {2}", entity.Name, entity.UUID, entity.GetType());
|
|
|
|
string serializedObject = serializer.SerializeGroupToXml2(sceneObject, m_options);
|
|
string objectPath = string.Format("{0}{1}", regionDir, ArchiveHelpers.CreateObjectPath(sceneObject));
|
|
m_archiveWriter.WriteFile(objectPath, serializedObject);
|
|
}
|
|
}
|
|
|
|
protected void ReceivedAllAssets(ICollection<UUID> assetsFoundUuids, ICollection<UUID> assetsNotFoundUuids, bool timedOut)
|
|
{
|
|
string errorMessage;
|
|
|
|
if (timedOut)
|
|
{
|
|
errorMessage = "Loading assets timed out";
|
|
}
|
|
else
|
|
{
|
|
foreach (UUID uuid in assetsNotFoundUuids)
|
|
{
|
|
m_log.DebugFormat("[ARCHIVER]: Could not find asset {0}", uuid);
|
|
}
|
|
|
|
// m_log.InfoFormat(
|
|
// "[ARCHIVER]: Received {0} of {1} assets requested",
|
|
// assetsFoundUuids.Count, assetsFoundUuids.Count + assetsNotFoundUuids.Count);
|
|
|
|
errorMessage = String.Empty;
|
|
}
|
|
|
|
CloseArchive(errorMessage);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Closes the archive and notifies that we're done.
|
|
/// </summary>
|
|
/// <param name="errorMessage">The error that occurred, or empty for success</param>
|
|
protected void CloseArchive(string errorMessage)
|
|
{
|
|
try
|
|
{
|
|
if (m_archiveWriter != null)
|
|
m_archiveWriter.Close();
|
|
m_saveStream.Close();
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
m_log.Error(string.Format("[ARCHIVER]: Error closing archive: {0} ", e.Message), e);
|
|
if (errorMessage == string.Empty)
|
|
errorMessage = e.Message;
|
|
}
|
|
|
|
m_log.InfoFormat("[ARCHIVER]: Finished writing out OAR for {0}", m_rootScene.RegionInfo.RegionName);
|
|
|
|
m_rootScene.EventManager.TriggerOarFileSaved(m_requestId, errorMessage);
|
|
}
|
|
}
|
|
}
|