1 files changed, 99 insertions, 0 deletions

diff --git a/OpenSim/Services/AuthenticationService/PasswordAuthenticationService.cs b/OpenSim/Services/AuthenticationService/PasswordAuthenticationService.cs
new file mode 100644
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+++ b/OpenSim/Services/AuthenticationService/PasswordAuthenticationService.cs
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+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using OpenMetaverse;
+using OpenSim.Services.Interfaces;
+using log4net;
+using Nini.Config;
+using System.Reflection;
+using OpenSim.Data;
+using OpenSim.Framework;
+using OpenSim.Framework.Console;
+
+namespace OpenSim.Services.AuthenticationService
+{
+    // Generic Authentication service used for identifying
+    // and authenticating principals.
+    // Principals may be clients acting on users' behalf,
+    // or any other components that need 
+    // verifiable identification.
+    //
+    public class PasswordAuthenticationService :
+            AuthenticationServiceBase, IAuthenticationService
+    {
+        private static readonly ILog m_log =
+                LogManager.GetLogger(
+                MethodBase.GetCurrentMethod().DeclaringType);
+ 
+        public PasswordAuthenticationService(IConfigSource config) :
+                base(config)
+        {
+        }
+
+        public string Authenticate(UUID principalID, string password, int lifetime)
+        {
+            AuthenticationData data = m_Database.Get(principalID);
+
+            if (data == null)
+            {
+                m_log.DebugFormat("[AUTH SERVICE]: PrincipalID {0} not found", principalID);
+                return String.Empty;
+            }
+            else if (data.Data == null)
+            {
+                m_log.DebugFormat("[AUTH SERVICE]: PrincipalID {0} data not found", principalID);
+                return String.Empty;
+            }
+            else if (!data.Data.ContainsKey("passwordHash") || !data.Data.ContainsKey("passwordSalt"))
+            {
+                m_log.DebugFormat(
+                    "[AUTH SERVICE]: PrincipalID {0} data didn't contain either passwordHash or passwordSalt", principalID);
+                return String.Empty;
+            }
+            else
+            {
+                string hashed = Util.Md5Hash(password + ":" + data.Data["passwordSalt"].ToString());
+
+                m_log.DebugFormat("[PASS AUTH]: got {0}; hashed = {1}; stored = {2}", password, hashed, data.Data["passwordHash"].ToString());
+
+                if (data.Data["passwordHash"].ToString() == hashed)
+                {
+                    return GetToken(principalID, lifetime);
+                }
+                else
+                {
+                    m_log.DebugFormat(
+                        "[AUTH SERVICE]: Salted hash {0} of given password did not match salted hash of {1} for PrincipalID {2}.  Authentication failure.",
+                        hashed, data.Data["passwordHash"], principalID);
+                    return String.Empty;
+                }
+            }
+        }
+    }
+}
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