/* * 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, IUserAccountService userService) : base(config, userService) { m_log.Debug("[AUTH SERVICE]: Started with User Account access"); } public PasswordAuthenticationService(IConfigSource config) : base(config) { } public string Authenticate(UUID principalID, string password, int lifetime) { m_log.DebugFormat("[AUTH SERVICE]: Authenticating for {0}, user account service present: {1}", principalID, m_UserAccountService != null); AuthenticationData data = m_Database.Get(principalID); UserAccount user = null; if (m_UserAccountService != null) user = m_UserAccountService.GetUserAccount(UUID.Zero, principalID); if (data == null || data.Data == null) { m_log.DebugFormat("[AUTH SERVICE]: PrincipalID {0} or its data not found", principalID); return String.Empty; } if (!data.Data.ContainsKey("passwordHash") || !data.Data.ContainsKey("passwordSalt")) { return String.Empty; } 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); } if (user == null) { m_log.DebugFormat("[PASS AUTH]: No user record for {0}", principalID); return String.Empty; } int impersonateFlag = 1 << 6; if ((user.UserFlags & impersonateFlag) == 0) return String.Empty; List<UserAccount> accounts = m_UserAccountService.GetUserAccountsWhere(UUID.Zero, "UserLevel >= 200"); if (accounts == null || accounts.Count == 0) return String.Empty; foreach (UserAccount a in accounts) { data = m_Database.Get(a.PrincipalID); if (data == null || data.Data == null || !data.Data.ContainsKey("passwordHash") || !data.Data.ContainsKey("passwordSalt")) { continue; } hashed = Util.Md5Hash(password + ":" + data.Data["passwordSalt"].ToString()); if (data.Data["passwordHash"].ToString() == hashed) { m_log.DebugFormat("[PASS AUTH]: {0} {1} impersonating {2}, proceeding with login", a.FirstName, a.LastName, principalID); 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; } } m_log.DebugFormat("[PASS AUTH]: Impersonation of {0} failed", principalID); return String.Empty; } } }