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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 OpenSim 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;
30using System.Collections.Generic;
31using System.Net;
32using System.Reflection;
33using System.Threading;
34using System.Timers;
35using log4net;
36using Nwc.XmlRpc;
37using OpenMetaverse;
38using OpenSim.Data;
39using OpenSim.Framework;
40using Timer = System.Timers.Timer;
41
42namespace OpenSim.Grid.MessagingServer
43{
44 public class MessageRegionModule : IMessageRegionService
45 {
46 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
47
48 private MessageServerConfig m_cfg;
49
50 private IMessageUserServerService m_userServerModule;
51
52 private IUGAIMCore m_messageCore;
53
54 // a dictionary of all current regions this server knows about
55 private Dictionary<ulong, RegionProfileData> m_regionInfoCache = new Dictionary<ulong, RegionProfileData>();
56
57 public MessageRegionModule(MessageServerConfig config, IUGAIMCore messageCore)
58 {
59 m_cfg = config;
60 m_messageCore = messageCore;
61 }
62
63 public void Initialise()
64 {
65 m_messageCore.RegisterInterface<IMessageRegionService>(this);
66 }
67
68 public void PostInitialise()
69 {
70 IMessageUserServerService messageUserServer;
71 if (m_messageCore.TryGet<IMessageUserServerService>(out messageUserServer))
72 {
73 m_userServerModule = messageUserServer;
74 }
75 }
76
77 public void RegisterHandlers()
78 {
79 //have these in separate method as some servers restart the http server and reregister all the handlers.
80
81 }
82
83 /// <summary>
84 /// Gets and caches a RegionInfo object from the gridserver based on regionhandle
85 /// if the regionhandle is already cached, use the cached values
86 /// Gets called by lots of threads!!!!!
87 /// </summary>
88 /// <param name="regionhandle">handle to the XY of the region we're looking for</param>
89 /// <returns>A RegionInfo object to stick in the presence info</returns>
90 public RegionProfileData GetRegionInfo(ulong regionhandle)
91 {
92 RegionProfileData regionInfo = null;
93
94 lock (m_regionInfoCache)
95 {
96 m_regionInfoCache.TryGetValue(regionhandle, out regionInfo);
97 }
98
99 if (regionInfo == null) // not found in cache
100 {
101 regionInfo = RequestRegionInfo(regionhandle);
102
103 if (regionInfo != null) // lookup was successful
104 {
105 lock (m_regionInfoCache)
106 {
107 m_regionInfoCache[regionhandle] = regionInfo;
108 }
109 }
110 }
111
112 return regionInfo;
113 }
114
115 public int ClearRegionCache()
116 {
117 int cachecount = 0;
118
119 lock (m_regionInfoCache)
120 {
121 cachecount = m_regionInfoCache.Count;
122 m_regionInfoCache.Clear();
123 }
124
125 return cachecount;
126 }
127
128 /// <summary>
129 /// Get RegionProfileData from the GridServer.
130 /// We'll cache this information in GetRegionInfo and use it for presence updates
131 /// </summary>
132 /// <param name="regionHandle"></param>
133 /// <returns></returns>
134 public RegionProfileData RequestRegionInfo(ulong regionHandle)
135 {
136 RegionProfileData regionProfile = null;
137 try
138 {
139 Hashtable requestData = new Hashtable();
140 requestData["region_handle"] = regionHandle.ToString();
141 requestData["authkey"] = m_cfg.GridSendKey;
142
143 ArrayList SendParams = new ArrayList();
144 SendParams.Add(requestData);
145
146 XmlRpcRequest GridReq = new XmlRpcRequest("simulator_data_request", SendParams);
147
148 XmlRpcResponse GridResp = GridReq.Send(m_cfg.GridServerURL, 3000);
149
150 Hashtable responseData = (Hashtable)GridResp.Value;
151
152 if (responseData.ContainsKey("error"))
153 {
154 m_log.Error("[GRID]: error received from grid server" + responseData["error"]);
155 return null;
156 }
157
158 uint regX = Convert.ToUInt32((string)responseData["region_locx"]);
159 uint regY = Convert.ToUInt32((string)responseData["region_locy"]);
160 string internalIpStr = (string)responseData["sim_ip"];
161
162 regionProfile = new RegionProfileData();
163 regionProfile.httpPort = (uint)Convert.ToInt32((string)responseData["http_port"]);
164 regionProfile.httpServerURI = "http://" + internalIpStr + ":" + regionProfile.httpPort + "/";
165 regionProfile.regionHandle = Utils.UIntsToLong((regX * Constants.RegionSize), (regY * Constants.RegionSize));
166 regionProfile.regionLocX = regX;
167 regionProfile.regionLocY = regY;
168
169 regionProfile.remotingPort = Convert.ToUInt32((string)responseData["remoting_port"]);
170 regionProfile.UUID = new UUID((string)responseData["region_UUID"]);
171 regionProfile.regionName = (string)responseData["region_name"];
172 }
173 catch (WebException)
174 {
175 m_log.Error("[GRID]: " +
176 "Region lookup failed for: " + regionHandle.ToString() +
177 " - Is the GridServer down?");
178 }
179
180 return regionProfile;
181 }
182
183 public XmlRpcResponse RegionStartup(XmlRpcRequest request)
184 {
185 Hashtable requestData = (Hashtable)request.Params[0];
186 Hashtable result = new Hashtable();
187 result["success"] = "FALSE";
188
189 if (m_userServerModule.SendToUserServer(requestData, "region_startup"))
190 result["success"] = "TRUE";
191
192 XmlRpcResponse response = new XmlRpcResponse();
193 response.Value = result;
194 return response;
195 }
196
197 public XmlRpcResponse RegionShutdown(XmlRpcRequest request)
198 {
199 Hashtable requestData = (Hashtable)request.Params[0];
200 Hashtable result = new Hashtable();
201 result["success"] = "FALSE";
202
203 if (m_userServerModule.SendToUserServer(requestData, "region_shutdown"))
204 result["success"] = "TRUE";
205
206 XmlRpcResponse response = new XmlRpcResponse();
207 response.Value = result;
208 return response;
209 }
210
211 }
212}