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path: root/OpenSim/Data/PGSQL/PGSQLEstateData.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 System.Reflection;
using log4net;
using OpenMetaverse;
using OpenSim.Framework;
using OpenSim.Region.Framework.Interfaces;
using System.Data;
using Npgsql;
using NpgsqlTypes;

namespace OpenSim.Data.PGSQL
{
    public class PGSQLEstateStore : IEstateDataStore
    {
        private const string _migrationStore = "EstateStore";

        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        private PGSQLManager _Database;
        private string m_connectionString;
        private FieldInfo[] _Fields;
        private Dictionary<string, FieldInfo> _FieldMap = new Dictionary<string, FieldInfo>();

        #region Public methods

        public PGSQLEstateStore()
        {
        }

        public PGSQLEstateStore(string connectionString)
        {
            Initialise(connectionString);
        }

        protected virtual Assembly Assembly
        {
            get { return GetType().Assembly; }
        }

        /// <summary>
        /// Initialises the estatedata class.
        /// </summary>
        /// <param name="connectionString">connectionString.</param>
        public void Initialise(string connectionString)
        {
            if (!string.IsNullOrEmpty(connectionString))
            {
                m_connectionString = connectionString;
                _Database = new PGSQLManager(connectionString);
            }

            //Migration settings
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                conn.Open();
                Migration m = new Migration(conn, GetType().Assembly, "EstateStore");
                m.Update();
            }

            //Interesting way to get parameters! Maybe implement that also with other types
            Type t = typeof(EstateSettings);
            _Fields = t.GetFields(BindingFlags.NonPublic |
                                  BindingFlags.Instance |
                                  BindingFlags.DeclaredOnly);

            foreach (FieldInfo f in _Fields)
            {
                if (f.Name.Substring(0, 2) == "m_")
                    _FieldMap[f.Name.Substring(2)] = f;
            }
        }

        /// <summary>
        /// Loads the estate settings.
        /// </summary>
        /// <param name="regionID">region ID.</param>
        /// <returns></returns>
        public EstateSettings LoadEstateSettings(UUID regionID, bool create)
        {
            EstateSettings es = new EstateSettings();

            string sql = "select estate_settings.\"" + String.Join("\",estate_settings.\"", FieldList) + 
                         "\" from estate_map left join estate_settings on estate_map.\"EstateID\" = estate_settings.\"EstateID\" " + 
                         " where estate_settings.\"EstateID\" is not null and \"RegionID\" = :RegionID";

            bool insertEstate = false;
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("RegionID", regionID));
                conn.Open();
                using (NpgsqlDataReader reader = cmd.ExecuteReader())
                {
                    if (reader.Read())
                    {
                        foreach (string name in FieldList)
                        {
                            FieldInfo f = _FieldMap[name];
                            object v = reader[name];
                            if (f.FieldType == typeof(bool))
                            {
                                f.SetValue(es, v);
                            }
                            else if (f.FieldType == typeof(UUID))
                            {
                                UUID estUUID = UUID.Zero;

                                UUID.TryParse(v.ToString(), out estUUID);

                                f.SetValue(es, estUUID);
                            }
                            else if (f.FieldType == typeof(string))
                            {
                                f.SetValue(es, v.ToString());
                            }
                            else if (f.FieldType == typeof(UInt32))
                            {
                                f.SetValue(es, Convert.ToUInt32(v));
                            }
                            else if (f.FieldType == typeof(Single))
                            {
                                f.SetValue(es, Convert.ToSingle(v));
                            }
                            else
                                f.SetValue(es, v);
                        }
                    }
                    else
                    {
                        insertEstate = true;
                    }
                }
            }

            if (insertEstate && create)
            {
                DoCreate(es);
                LinkRegion(regionID, (int)es.EstateID);
            }

            LoadBanList(es);

            es.EstateManagers = LoadUUIDList(es.EstateID, "estate_managers");
            es.EstateAccess = LoadUUIDList(es.EstateID, "estate_users");
            es.EstateGroups = LoadUUIDList(es.EstateID, "estate_groups");

            //Set event
            es.OnSave += StoreEstateSettings;
            return es;
        }

        public EstateSettings CreateNewEstate()
        {
            EstateSettings es = new EstateSettings();
            es.OnSave += StoreEstateSettings;

            DoCreate(es);

            LoadBanList(es);

            es.EstateManagers = LoadUUIDList(es.EstateID, "estate_managers");
            es.EstateAccess = LoadUUIDList(es.EstateID, "estate_users");
            es.EstateGroups = LoadUUIDList(es.EstateID, "estate_groups");

            return es;
        }

        private void DoCreate(EstateSettings es)
        {
            List<string> names = new List<string>(FieldList);

            names.Remove("EstateID");

            string sql = string.Format("insert into estate_settings (\"{0}\") values ( :{1} )", String.Join("\",\"", names.ToArray()), String.Join(", :", names.ToArray()));

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand insertCommand = new NpgsqlCommand(sql, conn))
            {
                insertCommand.CommandText = sql;

                foreach (string name in names)
                {
                    insertCommand.Parameters.Add(_Database.CreateParameter("" + name, _FieldMap[name].GetValue(es)));
                }
                //NpgsqlParameter idParameter = new NpgsqlParameter("ID", SqlDbType.Int);
                //idParameter.Direction = ParameterDirection.Output;
                //insertCommand.Parameters.Add(idParameter);
                conn.Open();

                es.EstateID = 100;

                if (insertCommand.ExecuteNonQuery() > 0)
                {
                    insertCommand.CommandText = "Select cast(lastval() as int) as ID ;";

                    using (NpgsqlDataReader result = insertCommand.ExecuteReader())
                    {
                        if (result.Read())
                        {
                            es.EstateID = (uint)result.GetInt32(0);
                        }
                    }
                }

            }

            //TODO check if this is needed??
            es.Save();
        }

        /// <summary>
        /// Stores the estate settings.
        /// </summary>
        /// <param name="es">estate settings</param>
        public void StoreEstateSettings(EstateSettings es)
        {
            List<string> names = new List<string>(FieldList);

            names.Remove("EstateID");

            string sql = string.Format("UPDATE estate_settings SET ");
            foreach (string name in names)
            {
                sql += "\"" + name + "\" = :" + name + ", ";
            }
            sql = sql.Remove(sql.LastIndexOf(","));
            sql += " WHERE \"EstateID\" = :EstateID";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                foreach (string name in names)
                {
                    cmd.Parameters.Add(_Database.CreateParameter("" + name, _FieldMap[name].GetValue(es)));
                }

                cmd.Parameters.Add(_Database.CreateParameter("EstateID", es.EstateID));
                conn.Open();
                cmd.ExecuteNonQuery();
            }

            SaveBanList(es);
            SaveUUIDList(es.EstateID, "estate_managers", es.EstateManagers);
            SaveUUIDList(es.EstateID, "estate_users", es.EstateAccess);
            SaveUUIDList(es.EstateID, "estate_groups", es.EstateGroups);
        }

        #endregion

        #region Private methods

        private string[] FieldList
        {
            get { return new List<string>(_FieldMap.Keys).ToArray(); }
        }

        private void LoadBanList(EstateSettings es)
        {
            es.ClearBans();

            string sql = "select \"bannedUUID\" from estateban where \"EstateID\" = :EstateID";

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                NpgsqlParameter idParameter = new NpgsqlParameter("EstateID", DbType.Int32);
                idParameter.Value = es.EstateID;
                cmd.Parameters.Add(idParameter);
                conn.Open();
                using (NpgsqlDataReader reader = cmd.ExecuteReader())
                {
                    while (reader.Read())
                    {
                        EstateBan eb = new EstateBan();

                        eb.BannedUserID = new UUID((Guid)reader["bannedUUID"]); //uuid;
                        eb.BannedHostAddress = "0.0.0.0";
                        eb.BannedHostIPMask = "0.0.0.0";
                        es.AddBan(eb);
                    }
                }
            }
        }

        private UUID[] LoadUUIDList(uint estateID, string table)
        {
            List<UUID> uuids = new List<UUID>();

            string sql = string.Format("select uuid from {0} where \"EstateID\" = :EstateID", table);

            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
            {
                cmd.Parameters.Add(_Database.CreateParameter("EstateID", estateID));
                conn.Open();
                using (NpgsqlDataReader reader = cmd.ExecuteReader())
                {
                    while (reader.Read())
                    {
                        uuids.Add(new UUID((Guid)reader["uuid"])); //uuid);
                    }
                }
            }

            return uuids.ToArray();
        }

        private void SaveBanList(EstateSettings es)
        {
            //Delete first
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                conn.Open();
                using (NpgsqlCommand cmd = conn.CreateCommand())
                {
                    cmd.CommandText = "delete from estateban where \"EstateID\" = :EstateID";
                    cmd.Parameters.AddWithValue("EstateID", (int)es.EstateID);
                    cmd.ExecuteNonQuery();

                    //Insert after
                    cmd.CommandText = "insert into estateban (\"EstateID\", \"bannedUUID\",\"bannedIp\", \"bannedIpHostMask\", \"bannedNameMask\") values ( :EstateID, :bannedUUID, '','','' )";
                    cmd.Parameters.AddWithValue("bannedUUID", Guid.Empty);
                    foreach (EstateBan b in es.EstateBans)
                    {
                        cmd.Parameters["bannedUUID"].Value = b.BannedUserID.Guid;
                        cmd.ExecuteNonQuery();
                    }
                }
            }
        }

        private void SaveUUIDList(uint estateID, string table, UUID[] data)
        {
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                conn.Open();
                using (NpgsqlCommand cmd = conn.CreateCommand())
                {
                    cmd.Parameters.AddWithValue("EstateID", (int)estateID);
                    cmd.CommandText = string.Format("delete from {0} where \"EstateID\" = :EstateID", table);
                    cmd.ExecuteNonQuery();

                    cmd.CommandText = string.Format("insert into {0} (\"EstateID\", uuid) values ( :EstateID, :uuid )", table);
                    cmd.Parameters.AddWithValue("uuid", Guid.Empty);
                    foreach (UUID uuid in data)
                    {
                        cmd.Parameters["uuid"].Value = uuid.Guid; //.ToString(); //TODO check if this works
                        cmd.ExecuteNonQuery();
                    }
                }
            }
        }

        public EstateSettings LoadEstateSettings(int estateID)
        {
            EstateSettings es = new EstateSettings();
            string sql = "select estate_settings.\"" + String.Join("\",estate_settings.\"", FieldList) + "\" from estate_settings where \"EstateID\" = :EstateID";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                conn.Open();
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.AddWithValue("EstateID", (int)estateID);
                    using (NpgsqlDataReader reader = cmd.ExecuteReader())
                    {
                        if (reader.Read())
                        {
                            foreach (string name in FieldList)
                            {
                                FieldInfo f = _FieldMap[name];
                                object v = reader[name];
                                if (f.FieldType == typeof(bool))
                                {
                                    f.SetValue(es, Convert.ToInt32(v) != 0);
                                }
                                else if (f.FieldType == typeof(UUID))
                                {
                                    f.SetValue(es, new UUID((Guid)v)); // uuid);
                                }
                                else if (f.FieldType == typeof(string))
                                {
                                    f.SetValue(es, v.ToString());
                                }
                                else if (f.FieldType == typeof(UInt32))
                                {
                                    f.SetValue(es, Convert.ToUInt32(v));
                                }
                                else if (f.FieldType == typeof(Single))
                                {
                                    f.SetValue(es, Convert.ToSingle(v));
                                }
                                else
                                    f.SetValue(es, v);
                            }
                        }

                    }
                }
            }
            LoadBanList(es);

            es.EstateManagers = LoadUUIDList(es.EstateID, "estate_managers");
            es.EstateAccess = LoadUUIDList(es.EstateID, "estate_users");
            es.EstateGroups = LoadUUIDList(es.EstateID, "estate_groups");

            //Set event
            es.OnSave += StoreEstateSettings;
            return es;

        }

        public List<EstateSettings> LoadEstateSettingsAll()
        {
            List<EstateSettings> allEstateSettings = new List<EstateSettings>();

            List<int> allEstateIds = GetEstatesAll();

            foreach (int estateId in allEstateIds)
                allEstateSettings.Add(LoadEstateSettings(estateId));

            return allEstateSettings;
        }

        public List<int> GetEstates(string search)
        {
            List<int> result = new List<int>();
            string sql = "select \"estateID\" from estate_settings where lower(\"EstateName\") = lower(:EstateName)";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                conn.Open();
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.AddWithValue("EstateName", search);

                    using (IDataReader reader = cmd.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            result.Add(Convert.ToInt32(reader["EstateID"]));
                        }
                        reader.Close();
                    }
                }
            }

            return result;
        }

        public List<int> GetEstatesAll()
        {
            List<int> result = new List<int>();
            string sql = "select \"EstateID\" from estate_settings";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                conn.Open();
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    using (IDataReader reader = cmd.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            result.Add(Convert.ToInt32(reader["EstateID"]));
                        }
                        reader.Close();
                    }
                }
            }

            return result;
        }

        public List<int> GetEstatesByOwner(UUID ownerID)
        {
            List<int> result = new List<int>();
            string sql = "select \"estateID\" from estate_settings where \"EstateOwner\" = :EstateOwner";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                conn.Open();
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.AddWithValue("EstateOwner", ownerID);

                    using (IDataReader reader = cmd.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            result.Add(Convert.ToInt32(reader["EstateID"]));
                        }
                        reader.Close();
                    }
                }
            }

            return result;
        }

        public bool LinkRegion(UUID regionID, int estateID)
        {
            string deleteSQL = "delete from estate_map where \"RegionID\" = :RegionID";
            string insertSQL = "insert into estate_map values (:RegionID, :EstateID)";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                conn.Open();

                NpgsqlTransaction transaction = conn.BeginTransaction();

                try
                {
                    using (NpgsqlCommand cmd = new NpgsqlCommand(deleteSQL, conn))
                    {
                        cmd.Transaction = transaction;
                        cmd.Parameters.AddWithValue("RegionID", regionID.Guid);

                        cmd.ExecuteNonQuery();
                    }

                    using (NpgsqlCommand cmd = new NpgsqlCommand(insertSQL, conn))
                    {
                        cmd.Transaction = transaction;
                        cmd.Parameters.AddWithValue("RegionID", regionID.Guid);
                        cmd.Parameters.AddWithValue("EstateID", estateID);

                        int ret = cmd.ExecuteNonQuery();

                        if (ret != 0)
                            transaction.Commit();
                        else
                            transaction.Rollback();

                        return (ret != 0);
                    }
                }
                catch (Exception ex)
                {
                    m_log.Error("[REGION DB]: LinkRegion failed: " + ex.Message);
                    transaction.Rollback();
                }
            }
            return false;
        }

        public List<UUID> GetRegions(int estateID)
        {
            List<UUID> result = new List<UUID>();
            string sql = "select \"RegionID\" from estate_map where \"EstateID\" = :EstateID";
            using (NpgsqlConnection conn = new NpgsqlConnection(m_connectionString))
            {
                conn.Open();
                using (NpgsqlCommand cmd = new NpgsqlCommand(sql, conn))
                {
                    cmd.Parameters.AddWithValue("EstateID", estateID);

                    using (IDataReader reader = cmd.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            result.Add(DBGuid.FromDB(reader["RegionID"]));
                        }
                        reader.Close();
                    }
                }
            }

            return result;
        }

        public bool DeleteEstate(int estateID)
        {
            // TODO: Implementation!            
            return false;
        }
        #endregion
    }
}