/* * 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 System.Reflection; using Nini.Config; using log4net; using OpenSim.Framework; using OpenSim.Data; using OpenSim.Services.Base; using OpenSim.Services.Interfaces; using OpenMetaverse; namespace OpenSim.Services.AuthenticationService { /// <summary> /// Simple authentication service implementation dealing only with users. /// It uses the user DB directly to access user information. /// It takes two config vars: /// - Authenticate = {true|false} : to do or not to do authentication /// - Authority = string like "osgrid.org" : this identity authority /// that will be called back for identity verification /// </summary> public class HGAuthenticationService : ServiceBase, IAuthenticationService { private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); protected IUserDataPlugin m_Database; protected string m_AuthorityURL; protected bool m_PerformAuthentication; protected Dictionary<UUID, List<string>> m_UserKeys = new Dictionary<UUID, List<string>>(); public HGAuthenticationService(IConfigSource config) : base(config) { string dllName = String.Empty; string connString = String.Empty; // // Try reading the [DatabaseService] section first, if it exists // IConfig dbConfig = config.Configs["DatabaseService"]; if (dbConfig != null) { dllName = dbConfig.GetString("StorageProvider", String.Empty); connString = dbConfig.GetString("ConnectionString", String.Empty); } // // Try reading the more specific [InventoryService] section, if it exists // IConfig authConfig = config.Configs["AuthenticationService"]; if (authConfig != null) { dllName = authConfig.GetString("StorageProvider", dllName); connString = authConfig.GetString("ConnectionString", connString); m_PerformAuthentication = authConfig.GetBoolean("Authenticate", true); m_AuthorityURL = "http://" + authConfig.GetString("Authority", "localhost"); if (!m_AuthorityURL.EndsWith("/")) m_AuthorityURL += "/"; } // // We tried, but this doesn't exist. We can't proceed. // if (dllName.Equals(String.Empty)) throw new Exception("No InventoryService configuration"); m_Database = LoadPlugin<IUserDataPlugin>(dllName); if (m_Database == null) throw new Exception("Could not find a storage interface in the given module"); m_Database.Initialise(connString); } public UUID AuthenticateKey(UUID principalID, string key) { bool writeAgentData = false; UserAgentData agent = m_Database.GetAgentByUUID(principalID); if (agent == null) { agent = new UserAgentData(); agent.ProfileID = principalID; agent.SessionID = UUID.Random(); agent.SecureSessionID = UUID.Random(); agent.AgentIP = "127.0.0.1"; agent.AgentPort = 0; agent.AgentOnline = false; writeAgentData = true; } if (!m_PerformAuthentication) { if (writeAgentData) m_Database.AddNewUserAgent(agent); return agent.SessionID; } if (!VerifyKey(principalID, key)) return UUID.Zero; if (writeAgentData) m_Database.AddNewUserAgent(agent); return agent.SessionID; } /// <summary> /// This implementation only authenticates users. /// </summary> /// <param name="principalID"></param> /// <param name="password"></param> /// <returns></returns> public UUID AuthenticatePassword(UUID principalID, string password) { bool writeAgentData = false; UserAgentData agent = m_Database.GetAgentByUUID(principalID); if (agent == null) { agent = new UserAgentData(); agent.ProfileID = principalID; agent.SessionID = UUID.Random(); agent.SecureSessionID = UUID.Random(); agent.AgentIP = "127.0.0.1"; agent.AgentPort = 0; agent.AgentOnline = false; writeAgentData = true; } if (!m_PerformAuthentication) { if (writeAgentData) m_Database.AddNewUserAgent(agent); return agent.SessionID; } UserProfileData profile = m_Database.GetUserByUUID(principalID); bool passwordSuccess = false; m_log.InfoFormat("[AUTH]: Authenticating {0} {1} ({2})", profile.FirstName, profile.SurName, profile.ID); // we do this to get our hash in a form that the server password code can consume // when the web-login-form submits the password in the clear (supposed to be over SSL!) if (!password.StartsWith("$1$")) password = "$1$" + Util.Md5Hash(password); password = password.Remove(0, 3); //remove $1$ string s = Util.Md5Hash(password + ":" + profile.PasswordSalt); // Testing... //m_log.Info("[LOGIN]: SubHash:" + s + " userprofile:" + profile.passwordHash); //m_log.Info("[LOGIN]: userprofile:" + profile.passwordHash + " SubCT:" + password); passwordSuccess = (profile.PasswordHash.Equals(s.ToString(), StringComparison.InvariantCultureIgnoreCase) || profile.PasswordHash.Equals(password, StringComparison.InvariantCulture)); if (!passwordSuccess) return UUID.Zero; if (writeAgentData) m_Database.AddNewUserAgent(agent); return agent.SessionID; } /// <summary> /// This generates authorization keys in the form /// http://authority/uuid /// after verifying that the caller is, indeed, authorized to request a key /// </summary> /// <param name="userID">The principal ID requesting the new key</param> /// <param name="authToken">The original authorization token for that principal, obtained during login</param> /// <returns></returns> public string GetKey(UUID principalID, string authToken) { UserProfileData profile = m_Database.GetUserByUUID(principalID); string newKey = string.Empty; if (profile != null) { m_log.DebugFormat("[AUTH]: stored auth token is {0}. Given token is {1}", profile.WebLoginKey.ToString(), authToken); // I'm overloading webloginkey for this, so that no changes are needed in the DB // The uses of webloginkey are fairly mutually exclusive if (profile.WebLoginKey.ToString().Equals(authToken)) { newKey = UUID.Random().ToString(); List<string> keys; lock (m_UserKeys) { if (m_UserKeys.ContainsKey(principalID)) { keys = m_UserKeys[principalID]; } else { keys = new List<string>(); m_UserKeys.Add(principalID, keys); } keys.Add(newKey); } m_log.InfoFormat("[AUTH]: Successfully generated new auth key for {0}", principalID); } else m_log.Warn("[AUTH]: Unauthorized key generation request. Denying new key."); } else m_log.Warn("[AUTH]: Principal not found."); return m_AuthorityURL + newKey; } /// <summary> /// This verifies the uuid portion of the key given out by GenerateKey /// </summary> /// <param name="userID"></param> /// <param name="key"></param> /// <returns></returns> public bool VerifyKey(UUID userID, string key) { lock (m_UserKeys) { if (m_UserKeys.ContainsKey(userID)) { List<string> keys = m_UserKeys[userID]; if (keys.Contains(key)) { // Keys are one-time only, so remove it keys.Remove(key); return true; } return false; } else return false; } } public UUID CreateUserSession(UUID userID, UUID oldSessionID) { UserAgentData agent = m_Database.GetAgentByUUID(userID); if (agent == null) return UUID.Zero; agent.SessionID = UUID.Random(); m_Database.AddNewUserAgent(agent); return agent.SessionID; } public bool VerifyUserSession(UUID userID, UUID sessionID) { UserProfileData userProfile = m_Database.GetUserByUUID(userID); if (userProfile != null && userProfile.CurrentAgent != null) { m_log.DebugFormat("[AUTH]: Verifying session {0} for {1}; current session {2}", sessionID, userID, userProfile.CurrentAgent.SessionID); if (userProfile.CurrentAgent.SessionID == sessionID) { return true; } } return false; } public bool DestroyUserSession(UUID userID, UUID sessionID) { if (!VerifyUserSession(userID, sessionID)) return false; UserAgentData agent = m_Database.GetAgentByUUID(userID); if (agent == null) return false; agent.SessionID = UUID.Zero; m_Database.AddNewUserAgent(agent); return true; } } }