1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSimulator Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Xml;
using Nini.Config;
using log4net;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Framework.Serialization.External;
using OpenSim.Server.Base;
using OpenSim.Services.Interfaces;
using OpenSim.Services.AssetService;
namespace OpenSim.Services.HypergridService
{
/// <summary>
/// Hypergrid asset service. It serves the IAssetService interface,
/// but implements it in ways that are appropriate for inter-grid
/// asset exchanges.
/// </summary>
public class HGAssetService : OpenSim.Services.AssetService.AssetService, IAssetService
{
private static readonly ILog m_log =
LogManager.GetLogger(
MethodBase.GetCurrentMethod().DeclaringType);
private string m_HomeURL;
private IUserAccountService m_UserAccountService;
private UserAccountCache m_Cache;
private bool[] m_DisallowGET, m_DisallowPOST;
private string[] m_AssetTypeNames;
public HGAssetService(IConfigSource config, string configName) : base(config, configName)
{
m_log.Debug("[HGAsset Service]: Starting");
IConfig assetConfig = config.Configs[configName];
if (assetConfig == null)
throw new Exception("No HGAssetService configuration");
string userAccountsDll = assetConfig.GetString("UserAccountsService", string.Empty);
if (userAccountsDll == string.Empty)
throw new Exception("Please specify UserAccountsService in HGAssetService configuration");
Object[] args = new Object[] { config };
m_UserAccountService = ServerUtils.LoadPlugin<IUserAccountService>(userAccountsDll, args);
if (m_UserAccountService == null)
throw new Exception(String.Format("Unable to create UserAccountService from {0}", userAccountsDll));
// legacy configuration [obsolete]
m_HomeURL = assetConfig.GetString("ProfileServerURI", string.Empty);
// Preferred
m_HomeURL = assetConfig.GetString("HomeURI", m_HomeURL);
m_Cache = UserAccountCache.CreateUserAccountCache(m_UserAccountService);
// Permissions
Type enumType = typeof(AssetType);
m_AssetTypeNames = Enum.GetNames(enumType);
for (int i = 0; i < m_AssetTypeNames.Length; i++)
m_AssetTypeNames[i] = m_AssetTypeNames[i].ToLower();
int n = Enum.GetValues(enumType).Length;
m_DisallowGET = new bool[n];
m_DisallowPOST = new bool[n];
LoadPermsFromConfig(assetConfig, "DisallowGET", m_DisallowGET);
LoadPermsFromConfig(assetConfig, "DisallowPOST", m_DisallowPOST);
}
private void LoadPermsFromConfig(IConfig assetConfig, string variable, bool[] bitArray)
{
string perms = assetConfig.GetString(variable, String.Empty);
string[] parts = perms.Split(new char[] {','}, StringSplitOptions.RemoveEmptyEntries);
foreach (string s in parts)
{
int index = Array.IndexOf(m_AssetTypeNames, s.Trim().ToLower());
if (index >= 0)
bitArray[index] = true;
else
m_log.WarnFormat("[HGAsset Service]: Invalid AssetType {0}", s);
}
}
#region IAssetService overrides
public override AssetBase Get(string id)
{
AssetBase asset = base.Get(id);
if (asset == null)
return null;
if (!AllowedGet(asset.Type))
return null;
if (asset.Metadata.Type == (sbyte)AssetType.Object)
asset.Data = AdjustIdentifiers(asset.Data); ;
AdjustIdentifiers(asset.Metadata);
return asset;
}
public override AssetMetadata GetMetadata(string id)
{
AssetMetadata meta = base.GetMetadata(id);
if (meta == null)
return null;
AdjustIdentifiers(meta);
return meta;
}
public override byte[] GetData(string id)
{
AssetBase asset = Get(id);
if (asset == null)
return null;
if (!AllowedGet(asset.Type))
return null;
return asset.Data;
}
//public virtual bool Get(string id, Object sender, AssetRetrieved handler)
public override string Store(AssetBase asset)
{
if (!AllowedPost(asset.Type))
return UUID.Zero.ToString();
return base.Store(asset);
}
public override bool Delete(string id)
{
// NOGO
return false;
}
#endregion
protected bool AllowedGet(sbyte type)
{
string assetTypeName = ((AssetType)type).ToString();
int index = Array.IndexOf(m_AssetTypeNames, assetTypeName.ToLower());
if (index >= 0 && m_DisallowGET[index])
{
m_log.DebugFormat("[HGAsset Service]: GET denied: service does not allow export of AssetType {0}", assetTypeName);
return false;
}
return true;
}
protected bool AllowedPost(sbyte type)
{
string assetTypeName = ((AssetType)type).ToString();
int index = Array.IndexOf(m_AssetTypeNames, assetTypeName.ToLower());
if (index >= 0 && m_DisallowPOST[index])
{
m_log.DebugFormat("[HGAsset Service]: POST denied: service does not allow import of AssetType {0}", assetTypeName);
return false;
}
return true;
}
protected void AdjustIdentifiers(AssetMetadata meta)
{
if (meta == null || m_Cache == null)
return;
UserAccount creator = m_Cache.GetUser(meta.CreatorID);
if (creator != null)
meta.CreatorID = meta.CreatorID + ";" + m_HomeURL + "/" + creator.FirstName + " " + creator.LastName;
}
protected byte[] AdjustIdentifiers(byte[] data)
{
string xml = Utils.BytesToString(data);
return Utils.StringToBytes(ExternalRepresentationUtils.RewriteSOP(xml, m_HomeURL, m_Cache, UUID.Zero));
}
}
}
|
