NeighbourServicesConnector.cs 7.8 KB

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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. using log4net;
  28. using System;
  29. using System.Collections;
  30. using System.Collections.Generic;
  31. using System.IO;
  32. using System.Net;
  33. using System.Reflection;
  34. using System.Text;
  35. using Nini.Config;
  36. using OpenSim.Framework;
  37. using OpenSim.Framework.Communications;
  38. using OpenSim.Services.Interfaces;
  39. using OpenMetaverse;
  40. using OpenMetaverse.StructuredData;
  41. using GridRegion = OpenSim.Services.Interfaces.GridRegion;
  42. namespace OpenSim.Services.Connectors
  43. {
  44. public class NeighbourServicesConnector : INeighbourService
  45. {
  46. private static readonly ILog m_log =
  47. LogManager.GetLogger(
  48. MethodBase.GetCurrentMethod().DeclaringType);
  49. protected IGridService m_GridService = null;
  50. public NeighbourServicesConnector()
  51. {
  52. }
  53. public NeighbourServicesConnector(IGridService gridServices)
  54. {
  55. Initialise(gridServices);
  56. }
  57. public virtual void Initialise(IGridService gridServices)
  58. {
  59. m_GridService = gridServices;
  60. }
  61. public virtual GridRegion HelloNeighbour(ulong regionHandle, RegionInfo thisRegion)
  62. {
  63. uint x = 0, y = 0;
  64. Util.RegionHandleToWorldLoc(regionHandle, out x, out y);
  65. GridRegion regInfo = m_GridService.GetRegionByPosition(thisRegion.ScopeID, (int)x, (int)y);
  66. if ((regInfo != null) &&
  67. // Don't remote-call this instance; that's a startup hickup
  68. !((regInfo.ExternalHostName == thisRegion.ExternalHostName) && (regInfo.HttpPort == thisRegion.HttpPort)))
  69. {
  70. if (!DoHelloNeighbourCall(regInfo, thisRegion))
  71. return null;
  72. }
  73. else
  74. return null;
  75. return regInfo;
  76. }
  77. public bool DoHelloNeighbourCall(GridRegion region, RegionInfo thisRegion)
  78. {
  79. string uri = region.ServerURI + "region/" + thisRegion.RegionID + "/";
  80. // m_log.Debug(" >>> DoHelloNeighbourCall <<< " + uri);
  81. WebRequest helloNeighbourRequest;
  82. try
  83. {
  84. helloNeighbourRequest = WebRequest.Create(uri);
  85. }
  86. catch (Exception e)
  87. {
  88. m_log.Warn(string.Format(
  89. "[NEIGHBOUR SERVICES CONNECTOR]: Unable to parse uri {0} to send HelloNeighbour from {1} to {2}. Exception {3} ",
  90. uri, thisRegion.RegionName, region.RegionName, e.Message), e);
  91. return false;
  92. }
  93. helloNeighbourRequest.Method = "POST";
  94. helloNeighbourRequest.ContentType = "application/json";
  95. helloNeighbourRequest.Timeout = 10000;
  96. // Fill it in
  97. OSDMap args = null;
  98. try
  99. {
  100. args = thisRegion.PackRegionInfoData();
  101. }
  102. catch (Exception e)
  103. {
  104. m_log.Warn(string.Format(
  105. "[NEIGHBOUR SERVICES CONNECTOR]: PackRegionInfoData failed for HelloNeighbour from {0} to {1}. Exception {2} ",
  106. thisRegion.RegionName, region.RegionName, e.Message), e);
  107. return false;
  108. }
  109. // Add the regionhandle of the destination region
  110. args["destination_handle"] = OSD.FromString(region.RegionHandle.ToString());
  111. string strBuffer = "";
  112. byte[] buffer = new byte[1];
  113. try
  114. {
  115. strBuffer = OSDParser.SerializeJsonString(args);
  116. buffer = Util.UTF8NoBomEncoding.GetBytes(strBuffer);
  117. }
  118. catch (Exception e)
  119. {
  120. m_log.Warn(string.Format(
  121. "[NEIGHBOUR SERVICES CONNECTOR]: Exception thrown on serialization of HelloNeighbour from {0} to {1}. Exception {2} ",
  122. thisRegion.RegionName, region.RegionName, e.Message), e);
  123. return false;
  124. }
  125. Stream os = null;
  126. try
  127. { // send the Post
  128. helloNeighbourRequest.ContentLength = buffer.Length; //Count bytes to send
  129. os = helloNeighbourRequest.GetRequestStream();
  130. os.Write(buffer, 0, strBuffer.Length); //Send it
  131. //m_log.InfoFormat("[REST COMMS]: Posted HelloNeighbour request to remote sim {0}", uri);
  132. }
  133. catch (Exception e)
  134. {
  135. m_log.Warn(string.Format(
  136. "[NEIGHBOUR SERVICES CONNECTOR]: Unable to send HelloNeighbour from {0} to {1} (uri {2}). Exception {3} ",
  137. thisRegion.RegionName, region.RegionName, uri, e.Message), e);
  138. return false;
  139. }
  140. finally
  141. {
  142. if (os != null)
  143. os.Dispose();
  144. }
  145. // Let's wait for the response
  146. //m_log.Info("[REST COMMS]: Waiting for a reply after DoHelloNeighbourCall");
  147. try
  148. {
  149. using (WebResponse webResponse = helloNeighbourRequest.GetResponse())
  150. {
  151. if (webResponse == null)
  152. {
  153. m_log.DebugFormat(
  154. "[NEIGHBOUR SERVICES CONNECTOR]: Null reply on DoHelloNeighbourCall post from {0} to {1}",
  155. thisRegion.RegionName, region.RegionName);
  156. }
  157. using (Stream s = webResponse.GetResponseStream())
  158. {
  159. using (StreamReader sr = new StreamReader(s))
  160. {
  161. //reply = sr.ReadToEnd().Trim();
  162. sr.ReadToEnd().Trim();
  163. //m_log.InfoFormat("[REST COMMS]: DoHelloNeighbourCall reply was {0} ", reply);
  164. }
  165. }
  166. }
  167. }
  168. catch (Exception e)
  169. {
  170. m_log.Warn(string.Format(
  171. "[NEIGHBOUR SERVICES CONNECTOR]: Exception on reply of DoHelloNeighbourCall from {0} back to {1}. Exception {2} ",
  172. region.RegionName, thisRegion.RegionName, e.Message), e);
  173. return false;
  174. }
  175. return true;
  176. }
  177. }
  178. }