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OspResolver.cs 8.4 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.Reflection;
  28. using System.Text;
  29. using log4net;
  30. using OpenMetaverse;
  31. using OpenSim.Framework;
  32. using OpenSim.Services.Interfaces;
  33. namespace OpenSim.Framework.Serialization
  34. {
  35. /// <summary>
  36. /// Resolves OpenSim Profile Anchors (OSPA). An OSPA is a string used to provide information for
  37. /// identifying user profiles or supplying a simple name if no profile is available.
  38. /// </summary>
  39. public class OspResolver
  40. {
  41. private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
  42. public const string OSPA_PREFIX = "ospa:";
  43. public const string OSPA_NAME_KEY = "n";
  44. public const string OSPA_NAME_VALUE_SEPARATOR = " ";
  45. public const string OSPA_TUPLE_SEPARATOR = "|";
  46. public static readonly char[] OSPA_TUPLE_SEPARATOR_ARRAY = OSPA_TUPLE_SEPARATOR.ToCharArray();
  47. public const string OSPA_PAIR_SEPARATOR = "=";
  48. /// <summary>
  49. /// Make an OSPA given a user UUID
  50. /// </summary>
  51. /// <param name="userId"></param>
  52. /// <param name="commsManager"></param>
  53. /// <returns>The OSPA. Null if a user with the given UUID could not be found.</returns>
  54. public static string MakeOspa(UUID userId, IUserAccountService userService)
  55. {
  56. if (userService == null)
  57. {
  58. m_log.Warn("[OSP RESOLVER]: UserService is null");
  59. return userId.ToString();
  60. }
  61. UserAccount account = userService.GetUserAccount(UUID.Zero, userId);
  62. if (account != null)
  63. return MakeOspa(account.FirstName, account.LastName);
  64. // else
  65. // m_log.WarnFormat("[OSP RESOLVER]: No user account for {0}", userId);
  66. return null;
  67. }
  68. /// <summary>
  69. /// Make an OSPA given a user name
  70. /// </summary>
  71. /// <param name="name"></param>
  72. /// <returns></returns>
  73. public static string MakeOspa(string firstName, string lastName)
  74. {
  75. // m_log.DebugFormat("[OSP RESOLVER]: Making OSPA for {0} {1}", firstName, lastName);
  76. return
  77. OSPA_PREFIX + OSPA_NAME_KEY + OSPA_PAIR_SEPARATOR + firstName + OSPA_NAME_VALUE_SEPARATOR + lastName;
  78. }
  79. /// <summary>
  80. /// Resolve an osp string into the most suitable internal OpenSim identifier.
  81. /// </summary>
  82. ///
  83. /// In some cases this will be a UUID if a suitable profile exists on the system. In other cases, this may
  84. /// just return the same identifier after creating a temporary profile.
  85. ///
  86. /// <param name="ospa"></param>
  87. /// <param name="commsManager"></param>
  88. /// <returns>
  89. /// A suitable UUID for use in Second Life client communication. If the string was not a valid ospa, then UUID.Zero
  90. /// is returned.
  91. /// </returns>
  92. public static UUID ResolveOspa(string ospa, IUserAccountService userService)
  93. {
  94. if (!ospa.StartsWith(OSPA_PREFIX))
  95. {
  96. // m_log.DebugFormat("[OSP RESOLVER]: ResolveOspa() got unrecognized format [{0}]", ospa);
  97. return UUID.Zero;
  98. }
  99. // m_log.DebugFormat("[OSP RESOLVER]: Resolving {0}", ospa);
  100. string ospaMeat = ospa.Substring(OSPA_PREFIX.Length);
  101. string[] ospaTuples = ospaMeat.Split(OSPA_TUPLE_SEPARATOR_ARRAY);
  102. foreach (string tuple in ospaTuples)
  103. {
  104. int tupleSeparatorIndex = tuple.IndexOf(OSPA_PAIR_SEPARATOR);
  105. if (tupleSeparatorIndex < 0)
  106. {
  107. m_log.WarnFormat("[OSP RESOLVER]: Ignoring non-tuple component {0} in OSPA {1}", tuple, ospa);
  108. continue;
  109. }
  110. string key = tuple.Remove(tupleSeparatorIndex).Trim();
  111. string value = tuple.Substring(tupleSeparatorIndex + 1).Trim();
  112. if (OSPA_NAME_KEY == key)
  113. return ResolveOspaName(value, userService);
  114. }
  115. return UUID.Zero;
  116. }
  117. /// <summary>
  118. /// Hash a profile name into a UUID
  119. /// </summary>
  120. /// <param name="name"></param>
  121. /// <returns></returns>
  122. public static UUID HashName(string name)
  123. {
  124. return new UUID(Utils.MD5(Encoding.Unicode.GetBytes(name)), 0);
  125. }
  126. /// <summary>
  127. /// Resolve an OSPI name by querying existing persistent user profiles. If there is no persistent user profile
  128. /// then a temporary user profile is inserted in the cache.
  129. /// </summary>
  130. /// <param name="name"></param>
  131. /// <param name="commsManager"></param>
  132. /// <returns>
  133. /// An OpenSim internal identifier for the name given. Returns null if the name was not valid
  134. /// </returns>
  135. protected static UUID ResolveOspaName(string name, IUserAccountService userService)
  136. {
  137. if (userService == null)
  138. return UUID.Zero;
  139. int nameSeparatorIndex = name.IndexOf(OSPA_NAME_VALUE_SEPARATOR);
  140. if (nameSeparatorIndex < 0)
  141. {
  142. m_log.WarnFormat("[OSP RESOLVER]: Ignoring unseparated name {0}", name);
  143. return UUID.Zero;
  144. }
  145. string firstName = name.Remove(nameSeparatorIndex).TrimEnd();
  146. string lastName = name.Substring(nameSeparatorIndex + 1).TrimStart();
  147. UserAccount account = userService.GetUserAccount(UUID.Zero, firstName, lastName);
  148. if (account != null)
  149. {
  150. // m_log.DebugFormat(
  151. // "[OSP RESOLVER]: Found user account with uuid {0} for {1} {2}",
  152. // account.PrincipalID, firstName, lastName);
  153. return account.PrincipalID;
  154. }
  155. // else
  156. // {
  157. // m_log.DebugFormat("[OSP RESOLVER]: No resolved OSPA user account for {0}", name);
  158. // }
  159. // XXX: Disable temporary user profile creation for now as implementation is incomplete - justincc
  160. /*
  161. UserProfileData tempUserProfile = new UserProfileData();
  162. tempUserProfile.FirstName = firstName;
  163. tempUserProfile.SurName = lastName;
  164. tempUserProfile.ID = HashName(tempUserProfile.Name);
  165. m_log.DebugFormat(
  166. "[OSP RESOLVER]: Adding temporary user profile for {0} {1}", tempUserProfile.Name, tempUserProfile.ID);
  167. commsManager.UserService.AddTemporaryUserProfile(tempUserProfile);
  168. return tempUserProfile.ID;
  169. */
  170. return UUID.Zero;
  171. }
  172. }
  173. }