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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.",
principalID);
return String.Empty;
}
}
}
}
}
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