aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Region/OptionalModules/DataSnapshot/ObjectSnapshot.cs
blob: 0bb40447f932966d69e7bdb5a01a28df49209e55 (plain)
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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
/*
 * 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.Reflection;
using System.Xml;
using log4net;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Region.DataSnapshot.Interfaces;
using OpenSim.Region.Framework.Interfaces;
using OpenSim.Region.Framework.Scenes;

namespace OpenSim.Region.DataSnapshot.Providers
{
    public class ObjectSnapshot : IDataSnapshotProvider
    {
        private Scene m_scene = null;
        // private DataSnapshotManager m_parent = null;
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
        private bool m_stale = true;

        private static UUID m_DefaultImage = new UUID("89556747-24cb-43ed-920b-47caed15465f");
        private static UUID m_BlankImage = new UUID("5748decc-f629-461c-9a36-a35a221fe21f");


        public void Initialize(Scene scene, DataSnapshotManager parent)
        {
            m_scene = scene;
            // m_parent = parent;

            //To check for staleness, we must catch all incoming client packets.
            m_scene.EventManager.OnNewClient += OnNewClient;
            m_scene.EventManager.OnParcelPrimCountAdd += delegate(SceneObjectGroup obj) { this.Stale = true; };
        }

        public void OnNewClient(IClientAPI client)
        {
            //Detect object data changes by hooking into the IClientAPI.
            //Very dirty, and breaks whenever someone changes the client API.

            client.OnAddPrim += delegate (UUID ownerID, UUID groupID, Vector3 RayEnd, Quaternion rot,
                PrimitiveBaseShape shape, byte bypassRaycast, Vector3 RayStart, UUID RayTargetID,
                byte RayEndIsIntersection) { this.Stale = true; };
            client.OnLinkObjects += delegate (IClientAPI remoteClient, uint parent, List<uint> children)
                { this.Stale = true; };
            client.OnDelinkObjects += delegate(List<uint> primIds, IClientAPI clientApi) { this.Stale = true; };
            client.OnGrabUpdate += delegate(UUID objectID, Vector3 offset, Vector3 grapPos,
                IClientAPI remoteClient, List<SurfaceTouchEventArgs> surfaceArgs) { this.Stale = true; };
            client.OnObjectAttach += delegate(IClientAPI remoteClient, uint objectLocalID, uint AttachmentPt,
                bool silent) { this.Stale = true; };
            client.OnObjectDuplicate += delegate(uint localID, Vector3 offset, uint dupeFlags, UUID AgentID,
                UUID GroupID) { this.Stale = true; };
            client.OnObjectDuplicateOnRay += delegate(uint localID, uint dupeFlags, UUID AgentID, UUID GroupID,
                UUID RayTargetObj, Vector3 RayEnd, Vector3 RayStart, bool BypassRaycast,
                bool RayEndIsIntersection, bool CopyCenters, bool CopyRotates) { this.Stale = true; };
            client.OnObjectIncludeInSearch += delegate(IClientAPI remoteClient, bool IncludeInSearch, uint localID)
                { this.Stale = true; };
            client.OnObjectPermissions += delegate(IClientAPI controller, UUID agentID, UUID sessionID,
                byte field, uint localId, uint mask, byte set) { this.Stale = true; };
            client.OnRezObject += delegate(IClientAPI remoteClient, UUID itemID, Vector3 RayEnd,
                Vector3 RayStart, UUID RayTargetID, byte BypassRayCast, bool RayEndIsIntersection,
                bool RezSelected,
                bool RemoveItem, UUID fromTaskID) { this.Stale = true; };
        }

        public Scene GetParentScene
        {
            get { return m_scene; }
        }

        public XmlNode RequestSnapshotData(XmlDocument nodeFactory)
        {
            m_log.Debug("[DATASNAPSHOT]: Generating object data for scene " + m_scene.RegionInfo.RegionName);

            XmlNode parent = nodeFactory.CreateNode(XmlNodeType.Element, "objectdata", "");
            XmlNode node;

            EntityBase[] entities = m_scene.Entities.GetEntities();
            foreach (EntityBase entity in entities)
            {
                // only objects, not avatars
                if (entity is SceneObjectGroup)
                {
                    SceneObjectGroup obj = (SceneObjectGroup)entity;

//                    m_log.Debug("[DATASNAPSHOT]: Found object " + obj.Name + " in scene");

                    // libomv will complain about PrimFlags.JointWheel
                    // being obsolete, so we...
                    #pragma warning disable 0612
                    if ((obj.RootPart.Flags & PrimFlags.JointWheel) == PrimFlags.JointWheel)
                    {
                        SceneObjectPart m_rootPart = obj.RootPart;

                        ILandObject land = m_scene.LandChannel.GetLandObject(m_rootPart.AbsolutePosition.X, m_rootPart.AbsolutePosition.Y);

                        XmlNode xmlobject = nodeFactory.CreateNode(XmlNodeType.Element, "object", "");
                        node = nodeFactory.CreateNode(XmlNodeType.Element, "uuid", "");
                        node.InnerText = obj.UUID.ToString();
                        xmlobject.AppendChild(node);

                        node = nodeFactory.CreateNode(XmlNodeType.Element, "title", "");
                        node.InnerText = m_rootPart.Name;
                        xmlobject.AppendChild(node);

                        node = nodeFactory.CreateNode(XmlNodeType.Element, "description", "");
                        node.InnerText = m_rootPart.Description;
                        xmlobject.AppendChild(node);

                        node = nodeFactory.CreateNode(XmlNodeType.Element, "flags", "");
                        node.InnerText = String.Format("{0:x}", (uint)m_rootPart.Flags);
                        xmlobject.AppendChild(node);

                        node = nodeFactory.CreateNode(XmlNodeType.Element, "regionuuid", "");
                        node.InnerText = m_scene.RegionInfo.RegionSettings.RegionUUID.ToString();
                        xmlobject.AppendChild(node);

                        if (land != null && land.LandData != null)
                        {
                            node = nodeFactory.CreateNode(XmlNodeType.Element, "parceluuid", "");
                            node.InnerText = land.LandData.GlobalID.ToString();
                            xmlobject.AppendChild(node);
                        }
                        else
                        {
                            // Something is wrong with this object. Let's not list it.
                            m_log.WarnFormat("[DATASNAPSHOT]: Bad data for object {0} ({1}) in region {2}", obj.Name, obj.UUID, m_scene.RegionInfo.RegionName);
                            continue;
                        }

                        node = nodeFactory.CreateNode(XmlNodeType.Element, "location", "");
                        Vector3 loc = obj.AbsolutePosition;
                        node.InnerText = loc.X.ToString() + "/" + loc.Y.ToString() + "/" + loc.Z.ToString();
                        xmlobject.AppendChild(node);

                        string bestImage = GuessImage(obj);
                        if (bestImage != string.Empty)
                        {
                            node = nodeFactory.CreateNode(XmlNodeType.Element, "image", "");
                            node.InnerText = bestImage;
                            xmlobject.AppendChild(node);
                        }

                        parent.AppendChild(xmlobject);
                    }
                    #pragma warning disable 0612
                }
            }
            this.Stale = false;
            return parent;
        }

        public String Name
        {
            get { return "ObjectSnapshot"; }
        }

        public bool Stale
        {
            get
            {
                return m_stale;
            }
            set
            {
                m_stale = value;

                if (m_stale)
                    OnStale(this);
            }
        }

        public event ProviderStale OnStale;

        /// <summary>
        /// Guesses the best image, based on a simple heuristic. It guesses only for boxes.
        /// We're optimizing for boxes, because those are the most common objects
        /// marked "Show in search" -- boxes with content inside.For other shapes,
        /// it's really hard to tell which texture should be grabbed.
        /// </summary>
        /// <param name="sog"></param>
        /// <returns></returns>
        private string GuessImage(SceneObjectGroup sog)
        {
            string bestguess = string.Empty;
            Dictionary<UUID, int> counts = new Dictionary<UUID, int>();

            PrimitiveBaseShape shape = sog.RootPart.Shape;
            if (shape != null && shape.ProfileShape == ProfileShape.Square)
            {
                Primitive.TextureEntry textures = shape.Textures;
                if (textures != null)
                {
                    if (textures.DefaultTexture != null &&
                        textures.DefaultTexture.TextureID != UUID.Zero &&
                        textures.DefaultTexture.TextureID != m_DefaultImage &&
                        textures.DefaultTexture.TextureID != m_BlankImage &&
                        textures.DefaultTexture.RGBA.A < 50f)
                    {
                        counts[textures.DefaultTexture.TextureID] = 8;
                    }

                    if (textures.FaceTextures != null)
                    {
                        foreach (Primitive.TextureEntryFace tentry in textures.FaceTextures)
                        {
                            if (tentry != null)
                            {
                                if (tentry.TextureID != UUID.Zero && tentry.TextureID != m_DefaultImage && tentry.TextureID != m_BlankImage && tentry.RGBA.A < 50)
                                {
                                    int c = 0;
                                    counts.TryGetValue(tentry.TextureID, out c);
                                    counts[tentry.TextureID] = c + 1;
                                    // decrease the default texture count
                                    if (counts.ContainsKey(textures.DefaultTexture.TextureID))
                                        counts[textures.DefaultTexture.TextureID] = counts[textures.DefaultTexture.TextureID] - 1;
                                }
                            }
                        }
                    }

                    // Let's pick the most unique texture
                    int min = 9999;
                    foreach (KeyValuePair<UUID, int> kv in counts)
                    {
                        if (kv.Value < min && kv.Value >= 1)
                        {
                            bestguess = kv.Key.ToString();
                            min = kv.Value;
                        }
                    }
                }
            }

            return bestguess;
        }
    }
}