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PasswordAuthenticationService.cs 4.2 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.Collections.Generic;
  29. using OpenMetaverse;
  30. using OpenSim.Services.Interfaces;
  31. using log4net;
  32. using Nini.Config;
  33. using System.Reflection;
  34. using OpenSim.Data;
  35. using OpenSim.Framework;
  36. using OpenSim.Framework.Console;
  37. namespace OpenSim.Services.AuthenticationService
  38. {
  39. // Generic Authentication service used for identifying
  40. // and authenticating principals.
  41. // Principals may be clients acting on users' behalf,
  42. // or any other components that need
  43. // verifiable identification.
  44. //
  45. public class PasswordAuthenticationService :
  46. AuthenticationServiceBase, IAuthenticationService
  47. {
  48. private static readonly ILog m_log =
  49. LogManager.GetLogger(
  50. MethodBase.GetCurrentMethod().DeclaringType);
  51. public PasswordAuthenticationService(IConfigSource config) :
  52. base(config)
  53. {
  54. }
  55. public string Authenticate(UUID principalID, string password, int lifetime)
  56. {
  57. AuthenticationData data = m_Database.Get(principalID);
  58. if (data == null)
  59. {
  60. m_log.DebugFormat("[AUTH SERVICE]: PrincipalID {0} not found", principalID);
  61. return String.Empty;
  62. }
  63. else if (data.Data == null)
  64. {
  65. m_log.DebugFormat("[AUTH SERVICE]: PrincipalID {0} data not found", principalID);
  66. return String.Empty;
  67. }
  68. else if (!data.Data.ContainsKey("passwordHash") || !data.Data.ContainsKey("passwordSalt"))
  69. {
  70. m_log.DebugFormat(
  71. "[AUTH SERVICE]: PrincipalID {0} data didn't contain either passwordHash or passwordSalt", principalID);
  72. return String.Empty;
  73. }
  74. else
  75. {
  76. string hashed = Util.Md5Hash(password + ":" + data.Data["passwordSalt"].ToString());
  77. m_log.DebugFormat("[PASS AUTH]: got {0}; hashed = {1}; stored = {2}", password, hashed, data.Data["passwordHash"].ToString());
  78. if (data.Data["passwordHash"].ToString() == hashed)
  79. {
  80. return GetToken(principalID, lifetime);
  81. }
  82. else
  83. {
  84. m_log.DebugFormat(
  85. "[AUTH SERVICE]: Salted hash {0} of given password did not match salted hash of {1} for PrincipalID {2}. Authentication failure.",
  86. hashed, data.Data["passwordHash"], principalID);
  87. return String.Empty;
  88. }
  89. }
  90. }
  91. }
  92. }