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HeloServicesConnector.cs 3.9 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.Net;
  30. using System.Reflection;
  31. using Nini.Config;
  32. namespace OpenSim.Services.Connectors
  33. {
  34. public class HeloServicesConnector
  35. {
  36. private static readonly ILog m_log =
  37. LogManager.GetLogger(
  38. MethodBase.GetCurrentMethod().DeclaringType);
  39. private string m_ServerURI = String.Empty;
  40. public HeloServicesConnector()
  41. {
  42. }
  43. public HeloServicesConnector(string serverURI)
  44. {
  45. if (!serverURI.EndsWith("="))
  46. m_ServerURI = serverURI.TrimEnd('/') + "/helo/";
  47. else
  48. {
  49. // Simian sends malformed urls like this:
  50. // http://valley.virtualportland.org/simtest/Grid/?id=
  51. //
  52. try
  53. {
  54. Uri uri = new Uri(serverURI + "xxx");
  55. if (uri.Query == string.Empty)
  56. m_ServerURI = serverURI.TrimEnd('/') + "/helo/";
  57. else
  58. {
  59. serverURI = serverURI + "xxx";
  60. m_ServerURI = serverURI.Replace(uri.Query, "");
  61. m_ServerURI = m_ServerURI.TrimEnd('/') + "/helo/";
  62. }
  63. }
  64. catch (UriFormatException)
  65. {
  66. m_log.WarnFormat("[HELO SERVICE]: Malformed URL {0}", serverURI);
  67. }
  68. }
  69. }
  70. public virtual string Helo()
  71. {
  72. HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(m_ServerURI);
  73. // Eventually we need to switch to HEAD
  74. /* req.Method = "HEAD"; */
  75. try
  76. {
  77. using (WebResponse response = req.GetResponse())
  78. {
  79. if (response.Headers.Get("X-Handlers-Provided") == null) // just in case this ever returns a null
  80. return string.Empty;
  81. return response.Headers.Get("X-Handlers-Provided");
  82. }
  83. }
  84. catch (Exception e)
  85. {
  86. m_log.DebugFormat("[HELO SERVICE]: Unable to perform HELO request to {0}: {1}", m_ServerURI, e.Message);
  87. }
  88. // fail
  89. return string.Empty;
  90. }
  91. }
  92. }