RegionLoaderWebServer.cs 6.3 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 System;
  28. using System.IO;
  29. using System.Net;
  30. using System.Reflection;
  31. using System.Xml;
  32. using log4net;
  33. using Nini.Config;
  34. using OpenSim.Framework;
  35. namespace OpenSim.ApplicationPlugins.LoadRegions
  36. {
  37. public class RegionLoaderWebServer : IRegionLoader
  38. {
  39. private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
  40. private IConfigSource m_configSource;
  41. public void SetIniConfigSource(IConfigSource configSource)
  42. {
  43. m_configSource = configSource;
  44. }
  45. public RegionInfo[] LoadRegions()
  46. {
  47. int tries = 3;
  48. int wait = 2000;
  49. if (m_configSource == null)
  50. {
  51. m_log.Error("[WEBLOADER]: Unable to load configuration source!");
  52. return null;
  53. }
  54. else
  55. {
  56. IConfig startupConfig = (IConfig)m_configSource.Configs["Startup"];
  57. string url = startupConfig.GetString("regionload_webserver_url", String.Empty).Trim();
  58. bool allowRegionless = startupConfig.GetBoolean("allow_regionless", false);
  59. if (url == String.Empty)
  60. {
  61. m_log.Error("[WEBLOADER]: Unable to load webserver URL - URL was empty.");
  62. return null;
  63. }
  64. else
  65. {
  66. while (tries > 0)
  67. {
  68. RegionInfo[] regionInfos = new RegionInfo[] { };
  69. int regionCount = 0;
  70. HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(url);
  71. webRequest.Timeout = 30000; //30 Second Timeout
  72. m_log.DebugFormat("[WEBLOADER]: Sending download request to {0}", url);
  73. try
  74. {
  75. HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse();
  76. m_log.Debug("[WEBLOADER]: Downloading region information...");
  77. StreamReader reader = new StreamReader(webResponse.GetResponseStream());
  78. string xmlSource = String.Empty;
  79. string tempStr = reader.ReadLine();
  80. while (tempStr != null)
  81. {
  82. xmlSource = xmlSource + tempStr;
  83. tempStr = reader.ReadLine();
  84. }
  85. m_log.Debug("[WEBLOADER]: Done downloading region information from server. Total Bytes: " +
  86. xmlSource.Length);
  87. XmlDocument xmlDoc = new XmlDocument();
  88. xmlDoc.LoadXml(xmlSource);
  89. if (xmlDoc.FirstChild.Name == "Nini")
  90. {
  91. regionCount = xmlDoc.FirstChild.ChildNodes.Count;
  92. if (regionCount > 0)
  93. {
  94. regionInfos = new RegionInfo[regionCount];
  95. int i;
  96. for (i = 0; i < xmlDoc.FirstChild.ChildNodes.Count; i++)
  97. {
  98. m_log.Debug(xmlDoc.FirstChild.ChildNodes[i].OuterXml);
  99. regionInfos[i] =
  100. new RegionInfo("REGION CONFIG #" + (i + 1), xmlDoc.FirstChild.ChildNodes[i], false, m_configSource);
  101. }
  102. }
  103. }
  104. }
  105. catch (WebException ex)
  106. {
  107. if (((HttpWebResponse)ex.Response).StatusCode == HttpStatusCode.NotFound)
  108. {
  109. if (!allowRegionless)
  110. throw ex;
  111. }
  112. else
  113. throw ex;
  114. }
  115. if (regionCount > 0 | allowRegionless)
  116. return regionInfos;
  117. m_log.Debug("[WEBLOADER]: Request yielded no regions.");
  118. tries--;
  119. if (tries > 0)
  120. {
  121. m_log.Debug("[WEBLOADER]: Retrying");
  122. System.Threading.Thread.Sleep(wait);
  123. }
  124. }
  125. m_log.Error("[WEBLOADER]: No region configs were available.");
  126. return null;
  127. }
  128. }
  129. }
  130. }
  131. }