136 lines
4.9 KiB
C#
136 lines
4.9 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Reflection;
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using System.Runtime.Serialization;
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using System.Text;
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using System.Timers;
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using System.Xml;
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using System.Xml.Serialization;
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using log4net;
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using Nini.Config;
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using OpenMetaverse;
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using OpenSim.Data;
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using OpenSim.Framework;
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using OpenSim.Services.Interfaces;
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namespace OpenSim.OfflineIM
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{
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public class OfflineIMService : OfflineIMServiceBase, IOfflineIMService
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{
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// private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private const int MAX_IM = 25;
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private XmlSerializer m_serializer;
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private static bool m_Initialized = false;
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public OfflineIMService(IConfigSource config)
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: base(config)
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{
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m_serializer = new XmlSerializer(typeof(GridInstantMessage));
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if (!m_Initialized)
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{
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m_Database.DeleteOld();
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m_Initialized = true;
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}
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}
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public List<GridInstantMessage> GetMessages(UUID principalID)
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{
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List<GridInstantMessage> ims = new List<GridInstantMessage>();
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OfflineIMData[] messages = m_Database.Get("PrincipalID", principalID.ToString());
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if (messages == null || (messages != null && messages.Length == 0))
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return ims;
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foreach (OfflineIMData m in messages)
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{
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using (MemoryStream mstream = new MemoryStream(Encoding.UTF8.GetBytes(m.Data["Message"])))
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{
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GridInstantMessage im = (GridInstantMessage)m_serializer.Deserialize(mstream);
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ims.Add(im);
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}
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}
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// Then, delete them
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m_Database.Delete("PrincipalID", principalID.ToString());
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return ims;
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}
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public bool StoreMessage(GridInstantMessage im, out string reason)
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{
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reason = string.Empty;
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// Check limits
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UUID principalID = new UUID(im.toAgentID);
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long count = m_Database.GetCount("PrincipalID", principalID.ToString());
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if (count >= MAX_IM)
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{
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reason = "Number of offline IMs has maxed out";
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return false;
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}
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string imXml;
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using (MemoryStream mstream = new MemoryStream())
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{
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XmlWriterSettings settings = new XmlWriterSettings();
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settings.Encoding = Util.UTF8NoBomEncoding;
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using (XmlWriter writer = XmlWriter.Create(mstream, settings))
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{
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m_serializer.Serialize(writer, im);
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writer.Flush();
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}
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imXml = Util.UTF8NoBomEncoding.GetString(mstream.ToArray());
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}
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OfflineIMData data = new OfflineIMData();
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data.PrincipalID = principalID;
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data.FromID = new UUID(im.fromAgentID);
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data.Data = new Dictionary<string, string>();
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data.Data["Message"] = imXml;
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return m_Database.Store(data);
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}
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public void DeleteMessages(UUID userID)
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{
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m_Database.Delete("PrincipalID", userID.ToString());
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m_Database.Delete("FromID", userID.ToString());
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}
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}
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}
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