Donating Diva OfflineIM as an addon in a single dll, OpenSim.Addons.OpenSim.dll

1 files changed, 131 insertions, 0 deletions

diff --git a/OpenSim/Addons/OfflineIM/Service/OfflineIMService.cs b/OpenSim/Addons/OfflineIM/Service/OfflineIMService.cs
new file mode 100644
index 0000000..6ba022c
--- /dev/null
+++ b/OpenSim/Addons/OfflineIM/Service/OfflineIMService.cs
@@ -0,0 +1,131 @@
+/*
+ * 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.Runtime.Serialization;
+using System.Text;
+using System.Timers;
+using System.Xml;
+using System.Xml.Serialization;
+using log4net;
+using Nini.Config;
+
+using OpenMetaverse;
+using OpenSim.Data;
+using OpenSim.Framework;
+using OpenSim.Services.Interfaces;
+
+namespace OpenSim.OfflineIM
+{
+    public class OfflineIMService : OfflineIMServiceBase, IOfflineIMService
+    {
+        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+        private const int MAX_IM = 25;
+
+        private XmlSerializer m_serializer;
+        private static bool m_Initialized = false;
+
+        public OfflineIMService(IConfigSource config)
+            : base(config)
+        {
+            m_serializer = new XmlSerializer(typeof(GridInstantMessage));
+            if (!m_Initialized)
+            {
+                m_Database.DeleteOld();
+                m_Initialized = true;
+            }
+        }
+
+        public List<GridInstantMessage> GetMessages(UUID principalID)
+        {
+            List<GridInstantMessage> ims = new List<GridInstantMessage>();
+
+            OfflineIMData[] messages = m_Database.Get("PrincipalID", principalID.ToString());
+
+            if (messages == null || (messages != null && messages.Length == 0))
+                return ims;
+
+            foreach (OfflineIMData m in messages)
+            {
+                using (MemoryStream mstream = new MemoryStream(Encoding.UTF8.GetBytes(m.Data["Message"])))
+                {
+                    GridInstantMessage im = (GridInstantMessage)m_serializer.Deserialize(mstream);
+                    ims.Add(im);
+                }
+            }
+
+            // Then, delete them
+            m_Database.Delete("PrincipalID", principalID.ToString());
+
+            return ims;
+        }
+
+        public bool StoreMessage(GridInstantMessage im, out string reason)
+        {
+            reason = string.Empty;
+            
+            // TODO Check limits
+            UUID principalID = new UUID(im.toAgentID);
+            long count = m_Database.GetCount("PrincipalID", principalID.ToString());
+            if (count >= MAX_IM)
+            {
+                reason = "Number of offline IMs has maxed out";
+                return false;
+            }
+
+            string imXml = string.Empty;
+            using (MemoryStream mstream = new MemoryStream())
+            {
+                XmlWriterSettings settings = new XmlWriterSettings();
+                settings.Encoding = Encoding.UTF8;
+
+                using (XmlWriter writer = XmlWriter.Create(mstream, settings))
+                {
+                    m_serializer.Serialize(writer, im);
+                    writer.Flush();
+                    
+                    mstream.Position = 0;
+                    using (StreamReader sreader = new StreamReader(mstream))
+                    {
+                        imXml = sreader.ReadToEnd();
+                    }
+                }
+            }
+
+            OfflineIMData data = new OfflineIMData();
+            data.PrincipalID = principalID;
+            data.Data = new Dictionary<string, string>();
+            data.Data["Message"] = imXml;
+
+            return m_Database.Store(data);
+
+        }
+    }
+}