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  
28 using System;
29 using System.Collections.Generic;
30 using System.IO;
31 using System.Reflection;
32 using System.Runtime.Serialization;
33 using System.Text;
34 using System.Timers;
35 using System.Xml;
36 using System.Xml.Serialization;
37 using log4net;
38 using Nini.Config;
39  
40 using OpenMetaverse;
41 using OpenSim.Data;
42 using OpenSim.Framework;
43 using OpenSim.Services.Interfaces;
44  
45 namespace OpenSim.OfflineIM
46 {
47 public class OfflineIMService : OfflineIMServiceBase, IOfflineIMService
48 {
49 // private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
50 private const int MAX_IM = 25;
51  
52 private XmlSerializer m_serializer;
53 private static bool m_Initialized = false;
54  
55 public OfflineIMService(IConfigSource config)
56 : base(config)
57 {
58 m_serializer = new XmlSerializer(typeof(GridInstantMessage));
59 if (!m_Initialized)
60 {
61 m_Database.DeleteOld();
62 m_Initialized = true;
63 }
64 }
65  
66 public List<GridInstantMessage> GetMessages(UUID principalID)
67 {
68 List<GridInstantMessage> ims = new List<GridInstantMessage>();
69  
70 OfflineIMData[] messages = m_Database.Get("PrincipalID", principalID.ToString());
71  
72 if (messages == null || (messages != null && messages.Length == 0))
73 return ims;
74  
75 foreach (OfflineIMData m in messages)
76 {
77 using (MemoryStream mstream = new MemoryStream(Encoding.UTF8.GetBytes(m.Data["Message"])))
78 {
79 GridInstantMessage im = (GridInstantMessage)m_serializer.Deserialize(mstream);
80 ims.Add(im);
81 }
82 }
83  
84 // Then, delete them
85 m_Database.Delete("PrincipalID", principalID.ToString());
86  
87 return ims;
88 }
89  
90 public bool StoreMessage(GridInstantMessage im, out string reason)
91 {
92 reason = string.Empty;
93  
94 // Check limits
95 UUID principalID = new UUID(im.toAgentID);
96 long count = m_Database.GetCount("PrincipalID", principalID.ToString());
97 if (count >= MAX_IM)
98 {
99 reason = "Number of offline IMs has maxed out";
100 return false;
101 }
102  
103 string imXml;
104 using (MemoryStream mstream = new MemoryStream())
105 {
106 XmlWriterSettings settings = new XmlWriterSettings();
107 settings.Encoding = Encoding.UTF8;
108  
109 using (XmlWriter writer = XmlWriter.Create(mstream, settings))
110 {
111 m_serializer.Serialize(writer, im);
112 writer.Flush();
113 }
114  
115 imXml = Util.UTF8.GetString(mstream.ToArray());
116 }
117  
118 OfflineIMData data = new OfflineIMData();
119 data.PrincipalID = principalID;
120 data.FromID = new UUID(im.fromAgentID);
121 data.Data = new Dictionary<string, string>();
122 data.Data["Message"] = imXml;
123  
124 return m_Database.Store(data);
125  
126 }
127  
128 public void DeleteMessages(UUID userID)
129 {
130 m_Database.Delete("PrincipalID", userID.ToString());
131 m_Database.Delete("FromID", userID.ToString());
132 }
133  
134 }
135 }