/* * 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.Data; using System.Reflection; using System.Threading; using log4net; using OpenMetaverse; using OpenSim.Framework; namespace OpenSim.Data.MySQL { /// <summary> /// A MySQL Interface for the Grid Server /// </summary> public class MySQLGridData : GridDataBase { private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); /// <summary> /// MySQL Database Manager /// </summary> private MySQLManager database; /// <summary> /// Better DB manager. Swap-in replacement too. /// </summary> public Dictionary<int, MySQLSuperManager> m_dbconnections = new Dictionary<int, MySQLSuperManager>(); public int m_maxConnections = 10; public int m_lastConnect; public MySQLSuperManager GetLockedConnection() { int lockedCons = 0; while (true) { m_lastConnect++; // Overflow protection if (m_lastConnect == int.MaxValue) m_lastConnect = 0; MySQLSuperManager x = m_dbconnections[m_lastConnect % m_maxConnections]; if (!x.Locked) { x.GetLock(); return x; } lockedCons++; if (lockedCons > m_maxConnections) { lockedCons = 0; Thread.Sleep(1000); // Wait some time before searching them again. m_log.Debug( "WARNING: All threads are in use. Probable cause: Something didnt release a mutex properly, or high volume of requests inbound."); } } } override public void Initialise() { m_log.Info("[MySQLGridData]: " + Name + " cannot be default-initialized!"); throw new PluginNotInitialisedException (Name); } /// <summary> /// <para>Initialises Grid interface</para> /// <para> /// <list type="bullet"> /// <item>Loads and initialises the MySQL storage plugin</item> /// <item>Warns and uses the obsolete mysql_connection.ini if connect string is empty.</item> /// <item>Check for migration</item> /// </list> /// </para> /// </summary> /// <param name="connect">connect string.</param> override public void Initialise(string connect) { if (connect != String.Empty) { database = new MySQLManager(connect); m_log.Info("Creating " + m_maxConnections + " DB connections..."); for (int i = 0; i < m_maxConnections; i++) { m_log.Info("Connecting to DB... [" + i + "]"); MySQLSuperManager msm = new MySQLSuperManager(); msm.Manager = new MySQLManager(connect); m_dbconnections.Add(i, msm); } } else { m_log.Warn("Using deprecated mysql_connection.ini. Please update database_connect in GridServer_Config.xml and we'll use that instead"); IniFile GridDataMySqlFile = new IniFile("mysql_connection.ini"); string settingHostname = GridDataMySqlFile.ParseFileReadValue("hostname"); string settingDatabase = GridDataMySqlFile.ParseFileReadValue("database"); string settingUsername = GridDataMySqlFile.ParseFileReadValue("username"); string settingPassword = GridDataMySqlFile.ParseFileReadValue("password"); string settingPooling = GridDataMySqlFile.ParseFileReadValue("pooling"); string settingPort = GridDataMySqlFile.ParseFileReadValue("port"); database = new MySQLManager(settingHostname, settingDatabase, settingUsername, settingPassword, settingPooling, settingPort); m_log.Info("Creating " + m_maxConnections + " DB connections..."); for (int i = 0; i < m_maxConnections; i++) { m_log.Info("Connecting to DB... [" + i + "]"); MySQLSuperManager msm = new MySQLSuperManager(); msm.Manager = new MySQLManager(settingHostname, settingDatabase, settingUsername, settingPassword, settingPooling, settingPort); m_dbconnections.Add(i, msm); } } // This actually does the roll forward assembly stuff Assembly assem = GetType().Assembly; Migration m = new Migration(database.Connection, assem, "GridStore"); m.Update(); } /// <summary> /// Shuts down the grid interface /// </summary> override public void Dispose() { database.Close(); } /// <summary> /// Returns the plugin name /// </summary> /// <returns>Plugin name</returns> override public string Name { get { return "MySql OpenGridData"; } } /// <summary> /// Returns the plugin version /// </summary> /// <returns>Plugin version</returns> override public string Version { get { return "0.1"; } } /// <summary> /// Returns all the specified region profiles within coordates -- coordinates are inclusive /// </summary> /// <param name="xmin">Minimum X coordinate</param> /// <param name="ymin">Minimum Y coordinate</param> /// <param name="xmax">Maximum X coordinate</param> /// <param name="ymax">Maximum Y coordinate</param> /// <returns>Array of sim profiles</returns> override public RegionProfileData[] GetProfilesInRange(uint xmin, uint ymin, uint xmax, uint ymax) { MySQLSuperManager dbm = GetLockedConnection(); try { Dictionary<string, object> param = new Dictionary<string, object>(); param["?xmin"] = xmin.ToString(); param["?ymin"] = ymin.ToString(); param["?xmax"] = xmax.ToString(); param["?ymax"] = ymax.ToString(); IDbCommand result = dbm.Manager.Query( "SELECT * FROM regions WHERE locX >= ?xmin AND locX <= ?xmax AND locY >= ?ymin AND locY <= ?ymax", param); IDataReader reader = result.ExecuteReader(); RegionProfileData row; List<RegionProfileData> rows = new List<RegionProfileData>(); while ((row = dbm.Manager.readSimRow(reader)) != null) { rows.Add(row); } reader.Close(); result.Dispose(); return rows.ToArray(); } catch (Exception e) { dbm.Manager.Reconnect(); m_log.Error(e.ToString()); return null; } finally { dbm.Release(); } } /// <summary> /// Returns up to maxNum profiles of regions that have a name starting with namePrefix /// </summary> /// <param name="name">The name to match against</param> /// <param name="maxNum">Maximum number of profiles to return</param> /// <returns>A list of sim profiles</returns> override public List<RegionProfileData> GetRegionsByName(string namePrefix, uint maxNum) { MySQLSuperManager dbm = GetLockedConnection(); try { Dictionary<string, object> param = new Dictionary<string, object>(); param["?name"] = namePrefix + "%"; IDbCommand result = dbm.Manager.Query( "SELECT * FROM regions WHERE regionName LIKE ?name", param); IDataReader reader = result.ExecuteReader(); RegionProfileData row; List<RegionProfileData> rows = new List<RegionProfileData>(); while (rows.Count < maxNum && (row = dbm.Manager.readSimRow(reader)) != null) { rows.Add(row); } reader.Close(); result.Dispose(); return rows; } catch (Exception e) { dbm.Manager.Reconnect(); m_log.Error(e.ToString()); return null; } finally { dbm.Release(); } } /// <summary> /// Returns a sim profile from it's location /// </summary> /// <param name="handle">Region location handle</param> /// <returns>Sim profile</returns> override public RegionProfileData GetProfileByHandle(ulong handle) { MySQLSuperManager dbm = GetLockedConnection(); try { Dictionary<string, object> param = new Dictionary<string, object>(); param["?handle"] = handle.ToString(); IDbCommand result = dbm.Manager.Query("SELECT * FROM regions WHERE regionHandle = ?handle", param); IDataReader reader = result.ExecuteReader(); RegionProfileData row = dbm.Manager.readSimRow(reader); reader.Close(); result.Dispose(); return row; } catch (Exception e) { dbm.Manager.Reconnect(); m_log.Error(e.ToString()); return null; } finally { dbm.Release(); } } /// <summary> /// Returns a sim profile from it's UUID /// </summary> /// <param name="uuid">The region UUID</param> /// <returns>The sim profile</returns> override public RegionProfileData GetProfileByUUID(UUID uuid) { MySQLSuperManager dbm = GetLockedConnection(); try { Dictionary<string, object> param = new Dictionary<string, object>(); param["?uuid"] = uuid.ToString(); IDbCommand result = dbm.Manager.Query("SELECT * FROM regions WHERE uuid = ?uuid", param); IDataReader reader = result.ExecuteReader(); RegionProfileData row = dbm.Manager.readSimRow(reader); reader.Close(); result.Dispose(); return row; } catch (Exception e) { dbm.Manager.Reconnect(); m_log.Error(e.ToString()); return null; } finally { dbm.Release(); } } /// <summary> /// Returns a sim profile from it's Region name string /// </summary> /// <returns>The sim profile</returns> override public RegionProfileData GetProfileByString(string regionName) { if (regionName.Length > 2) { MySQLSuperManager dbm = GetLockedConnection(); try { Dictionary<string, object> param = new Dictionary<string, object>(); // Add % because this is a like query. param["?regionName"] = regionName + "%"; // Order by statement will return shorter matches first. Only returns one record or no record. IDbCommand result = dbm.Manager.Query( "SELECT * FROM regions WHERE regionName like ?regionName order by LENGTH(regionName) asc LIMIT 1", param); IDataReader reader = result.ExecuteReader(); RegionProfileData row = dbm.Manager.readSimRow(reader); reader.Close(); result.Dispose(); return row; } catch (Exception e) { dbm.Manager.Reconnect(); m_log.Error(e.ToString()); return null; } finally { dbm.Release(); } } m_log.Error("[GRID DB]: Searched for a Region Name shorter then 3 characters"); return null; } /// <summary> /// Adds a new profile to the database /// </summary> /// <param name="profile">The profile to add</param> /// <returns>Successful?</returns> override public DataResponse StoreProfile(RegionProfileData profile) { MySQLSuperManager dbm = GetLockedConnection(); try { if (dbm.Manager.insertRegion(profile)) { return DataResponse.RESPONSE_OK; } return DataResponse.RESPONSE_ERROR; } finally { dbm.Release(); } } /// <summary> /// Deletes a sim profile from the database /// </summary> /// <param name="uuid">the sim UUID</param> /// <returns>Successful?</returns> //public DataResponse DeleteProfile(RegionProfileData profile) override public DataResponse DeleteProfile(string uuid) { MySQLSuperManager dbm = GetLockedConnection(); try { if (dbm.Manager.deleteRegion(uuid)) { return DataResponse.RESPONSE_OK; } return DataResponse.RESPONSE_ERROR; } finally { dbm.Release(); } } /// <summary> /// DEPRECATED. Attempts to authenticate a region by comparing a shared secret. /// </summary> /// <param name="uuid">The UUID of the challenger</param> /// <param name="handle">The attempted regionHandle of the challenger</param> /// <param name="authkey">The secret</param> /// <returns>Whether the secret and regionhandle match the database entry for UUID</returns> override public bool AuthenticateSim(UUID uuid, ulong handle, string authkey) { bool throwHissyFit = false; // Should be true by 1.0 if (throwHissyFit) throw new Exception("CRYPTOWEAK AUTHENTICATE: Refusing to authenticate due to replay potential."); RegionProfileData data = GetProfileByUUID(uuid); return (handle == data.regionHandle && authkey == data.regionSecret); } /// <summary> /// NOT YET FUNCTIONAL. Provides a cryptographic authentication of a region /// </summary> /// <remarks>This requires a security audit.</remarks> /// <param name="uuid"></param> /// <param name="handle"></param> /// <param name="authhash"></param> /// <param name="challenge"></param> /// <returns></returns> public bool AuthenticateSim(UUID uuid, ulong handle, string authhash, string challenge) { // SHA512Managed HashProvider = new SHA512Managed(); // Encoding TextProvider = new UTF8Encoding(); // byte[] stream = TextProvider.GetBytes(uuid.ToString() + ":" + handle.ToString() + ":" + challenge); // byte[] hash = HashProvider.ComputeHash(stream); return false; } /// <summary> /// Adds a location reservation /// </summary> /// <param name="x">x coordinate</param> /// <param name="y">y coordinate</param> /// <returns></returns> override public ReservationData GetReservationAtPoint(uint x, uint y) { MySQLSuperManager dbm = GetLockedConnection(); try { Dictionary<string, object> param = new Dictionary<string, object>(); param["?x"] = x.ToString(); param["?y"] = y.ToString(); IDbCommand result = dbm.Manager.Query( "SELECT * FROM reservations WHERE resXMin <= ?x AND resXMax >= ?x AND resYMin <= ?y AND resYMax >= ?y", param); IDataReader reader = result.ExecuteReader(); ReservationData row = dbm.Manager.readReservationRow(reader); reader.Close(); result.Dispose(); return row; } catch (Exception e) { dbm.Manager.Reconnect(); m_log.Error(e.ToString()); return null; } finally { dbm.Release(); } } } }