opensim-development – Blame information for rev 1

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1 eva 1 /*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27 using System;
28 using System.Collections.Generic;
29 using System.IO;
30 using System.Reflection;
31 using System.Xml;
32  
33 using Nini.Config;
34 using log4net;
35 using OpenMetaverse;
36  
37 using OpenSim.Framework;
38 using OpenSim.Framework.Serialization.External;
39 using OpenSim.Server.Base;
40 using OpenSim.Services.Interfaces;
41 using OpenSim.Services.AssetService;
42  
43 namespace OpenSim.Services.HypergridService
44 {
45 /// <summary>
46 /// Hypergrid asset service. It serves the IAssetService interface,
47 /// but implements it in ways that are appropriate for inter-grid
48 /// asset exchanges.
49 /// </summary>
50 public class HGAssetService : OpenSim.Services.AssetService.AssetService, IAssetService
51 {
52 private static readonly ILog m_log =
53 LogManager.GetLogger(
54 MethodBase.GetCurrentMethod().DeclaringType);
55  
56 private string m_HomeURL;
57 private IUserAccountService m_UserAccountService;
58  
59 private UserAccountCache m_Cache;
60  
61 private AssetPermissions m_AssetPerms;
62  
63 public HGAssetService(IConfigSource config, string configName) : base(config, configName)
64 {
65 m_log.Debug("[HGAsset Service]: Starting");
66 IConfig assetConfig = config.Configs[configName];
67 if (assetConfig == null)
68 throw new Exception("No HGAssetService configuration");
69  
70 string userAccountsDll = assetConfig.GetString("UserAccountsService", string.Empty);
71 if (userAccountsDll == string.Empty)
72 throw new Exception("Please specify UserAccountsService in HGAssetService configuration");
73  
74 Object[] args = new Object[] { config };
75 m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(userAccountsDll, args);
76 if (m_UserAccountService == null)
77 throw new Exception(String.Format("Unable to create UserAccountService from {0}", userAccountsDll));
78  
79 // legacy configuration [obsolete]
80 m_HomeURL = assetConfig.GetString("ProfileServerURI", string.Empty);
81 // Preferred
82 m_HomeURL = assetConfig.GetString("HomeURI", m_HomeURL);
83  
84 m_Cache = UserAccountCache.CreateUserAccountCache(m_UserAccountService);
85  
86 // Permissions
87 m_AssetPerms = new AssetPermissions(assetConfig);
88  
89 }
90  
91 #region IAssetService overrides
92 public override AssetBase Get(string id)
93 {
94 AssetBase asset = base.Get(id);
95  
96 if (asset == null)
97 return null;
98  
99 if (!m_AssetPerms.AllowedExport(asset.Type))
100 return null;
101  
102 if (asset.Metadata.Type == (sbyte)AssetType.Object)
103 asset.Data = AdjustIdentifiers(asset.Data); ;
104  
105 AdjustIdentifiers(asset.Metadata);
106  
107 return asset;
108 }
109  
110 public override AssetMetadata GetMetadata(string id)
111 {
112 AssetMetadata meta = base.GetMetadata(id);
113  
114 if (meta == null)
115 return null;
116  
117 AdjustIdentifiers(meta);
118  
119 return meta;
120 }
121  
122 public override byte[] GetData(string id)
123 {
124 AssetBase asset = Get(id);
125  
126 if (asset == null)
127 return null;
128  
129 if (!m_AssetPerms.AllowedExport(asset.Type))
130 return null;
131  
132 return asset.Data;
133 }
134  
135 //public virtual bool Get(string id, Object sender, AssetRetrieved handler)
136  
137 public override string Store(AssetBase asset)
138 {
139 if (!m_AssetPerms.AllowedImport(asset.Type))
140 return string.Empty;
141  
142 return base.Store(asset);
143 }
144  
145 public override bool Delete(string id)
146 {
147 // NOGO
148 return false;
149 }
150  
151 #endregion
152  
153 protected void AdjustIdentifiers(AssetMetadata meta)
154 {
155 if (meta == null || m_Cache == null)
156 return;
157  
158 UserAccount creator = m_Cache.GetUser(meta.CreatorID);
159 if (creator != null)
160 meta.CreatorID = meta.CreatorID + ";" + m_HomeURL + "/" + creator.FirstName + " " + creator.LastName;
161 }
162  
163 protected byte[] AdjustIdentifiers(byte[] data)
164 {
165 string xml = Utils.BytesToString(data);
166 return Utils.StringToBytes(ExternalRepresentationUtils.RewriteSOP(xml, m_HomeURL, m_Cache, UUID.Zero));
167 }
168  
169 }
170  
171 }