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path: root/OpenSim/Data/MySQL/MySQLXInventoryData.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.Data;
using System.Reflection;
using System.Collections.Generic;
using log4net;
using MySql.Data.MySqlClient;
using OpenMetaverse;
using OpenSim.Framework;

namespace OpenSim.Data.MySQL
{
    /// <summary>
    /// A MySQL Interface for the Asset Server
    /// </summary>
    public class MySQLXInventoryData : IXInventoryData
    {
        private MySQLGenericTableHandler<XInventoryFolder> m_Folders;
        private MySqlItemHandler m_Items;

        public MySQLXInventoryData(string conn, string realm)
        {
            m_Folders = new MySQLGenericTableHandler<XInventoryFolder>(
                    conn, "inventoryfolders", "InventoryStore");
            m_Items = new MySqlItemHandler(
                    conn, "inventoryitems", String.Empty);
        }

        public XInventoryFolder[] GetFolders(string[] fields, string[] vals)
        {
            return m_Folders.Get(fields, vals);
        }

        public XInventoryItem[] GetItems(string[] fields, string[] vals)
        {
            return m_Items.Get(fields, vals);
        }

        public bool StoreFolder(XInventoryFolder folder)
        {
            if (folder.folderName.Length > 64)
                folder.folderName = folder.folderName.Substring(0, 64);

            return m_Folders.Store(folder);
        }

        public bool StoreItem(XInventoryItem item)
        {
            if (item.inventoryName.Length > 64)
                item.inventoryName = item.inventoryName.Substring(0, 64);
            if (item.inventoryDescription.Length > 128)
                item.inventoryDescription = item.inventoryDescription.Substring(0, 128);

            return m_Items.Store(item);
        }
        
        public bool DeleteFolders(string field, string val)
        {
            return m_Folders.Delete(field, val);
        }

        public bool DeleteFolders(string[] fields, string[] vals)
        {
            return m_Folders.Delete(fields, vals);
        }

        public bool DeleteItems(string field, string val)
        {
            return m_Items.Delete(field, val);
        }

        public bool DeleteItems(string[] fields, string[] vals)
        {
            return m_Items.Delete(fields, vals);
        }

        public bool MoveItem(string id, string newParent)
        {
            return m_Items.MoveItem(id, newParent);
        }

        public XInventoryItem[] GetActiveGestures(UUID principalID)
        {
            return m_Items.GetActiveGestures(principalID);
        }

        public int GetAssetPermissions(UUID principalID, UUID assetID)
        {
            return m_Items.GetAssetPermissions(principalID, assetID);
        }
    }

    public class MySqlItemHandler : MySQLGenericTableHandler<XInventoryItem>
    {
        public MySqlItemHandler(string c, string t, string m) :
                base(c, t, m)
        {
        }

        public override bool Delete(string field, string val)
        {
            XInventoryItem[] retrievedItems = Get(new string[] { field }, new string[] { val });
            if (retrievedItems.Length == 0)
                return false;

            if (!base.Delete(field, val))
                return false;

            IncrementFolderVersion(retrievedItems[0].parentFolderID);

            return true;
        }

        public bool MoveItem(string id, string newParent)
        {
            using (MySqlCommand cmd = new MySqlCommand())
            {
                cmd.CommandText = String.Format("update {0} set parentFolderID = ?ParentFolderID where inventoryID = ?InventoryID", m_Realm);
                cmd.Parameters.AddWithValue("?ParentFolderID", newParent);
                cmd.Parameters.AddWithValue("?InventoryID", id);

                return ExecuteNonQuery(cmd) == 0 ? false : true;
            }
        }

        public XInventoryItem[] GetActiveGestures(UUID principalID)
        {
            using (MySqlCommand cmd  = new MySqlCommand())
            {
                cmd.CommandText = String.Format("select * from inventoryitems where avatarId = ?uuid and assetType = ?type and flags & 1", m_Realm);

                cmd.Parameters.AddWithValue("?uuid", principalID.ToString());
                cmd.Parameters.AddWithValue("?type", (int)AssetType.Gesture);

                return DoQuery(cmd);
            }
        }

        public int GetAssetPermissions(UUID principalID, UUID assetID)
        {
            using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
            {
                dbcon.Open();

                using (MySqlCommand cmd = new MySqlCommand())
                {
                    cmd.Connection = dbcon;

                    cmd.CommandText = String.Format("select bit_or(inventoryCurrentPermissions) as inventoryCurrentPermissions from inventoryitems where avatarID = ?PrincipalID and assetID = ?AssetID group by assetID", m_Realm);
                    cmd.Parameters.AddWithValue("?PrincipalID", principalID.ToString());
                    cmd.Parameters.AddWithValue("?AssetID", assetID.ToString());
                
                    using (IDataReader reader = cmd.ExecuteReader())
                    {

                        int perms = 0;
                    
                        if (reader.Read())
                        {
                            perms = Convert.ToInt32(reader["inventoryCurrentPermissions"]);
                        }

                        return perms;
                    }
                }
            }
        }

        public override bool Store(XInventoryItem item)
        {
            if (!base.Store(item))
                return false;

            IncrementFolderVersion(item.parentFolderID);

            return true;
        }

        private bool IncrementFolderVersion(UUID folderID)
        {
            using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
            {
                dbcon.Open();

                using (MySqlCommand cmd = new MySqlCommand())
                {
                    cmd.Connection = dbcon;

                    cmd.CommandText = String.Format("update inventoryfolders set version=version+1 where folderID = ?folderID");
                    cmd.Parameters.AddWithValue("?folderID", folderID.ToString());

                    try
                    {
                        cmd.ExecuteNonQuery();
                    }
                    catch (Exception)
                    {
                        return false;
                    }
                    cmd.Dispose();
                }

                dbcon.Close();
            }

            return true;
        }
    }
}