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-rw-r--r--OpenSim/Addons/OfflineIM/Service/OfflineIMService.cs131
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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
28using System;
29using System.Collections.Generic;
30using System.IO;
31using System.Reflection;
32using System.Runtime.Serialization;
33using System.Text;
34using System.Timers;
35using System.Xml;
36using System.Xml.Serialization;
37using log4net;
38using Nini.Config;
39
40using OpenMetaverse;
41using OpenSim.Data;
42using OpenSim.Framework;
43using OpenSim.Services.Interfaces;
44
45namespace 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 // TODO 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 = string.Empty;
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 mstream.Position = 0;
115 using (StreamReader sreader = new StreamReader(mstream))
116 {
117 imXml = sreader.ReadToEnd();
118 }
119 }
120 }
121
122 OfflineIMData data = new OfflineIMData();
123 data.PrincipalID = principalID;
124 data.Data = new Dictionary<string, string>();
125 data.Data["Message"] = imXml;
126
127 return m_Database.Store(data);
128
129 }
130 }
131}