clockwerk-opensim – Blame information for rev 1
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1 | vero | 1 | /* |
2 | * Copyright (c) Contributors, http://opensimulator.org/ |
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3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions are met: |
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7 | * * Redistributions of source code must retain the above copyright |
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8 | * notice, this list of conditions and the following disclaimer. |
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9 | * * Redistributions in binary form must reproduce the above copyright |
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10 | * notice, this list of conditions and the following disclaimer in the |
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11 | * documentation and/or other materials provided with the distribution. |
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12 | * * Neither the name of the OpenSimulator Project nor the |
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13 | * names of its contributors may be used to endorse or promote products |
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14 | * derived from this software without specific prior written permission. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY |
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17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY |
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20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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26 | */ |
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27 | |||
28 | using System; |
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29 | using System.Data; |
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30 | using System.Reflection; |
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31 | using System.Collections.Generic; |
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32 | using log4net; |
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33 | using MySql.Data.MySqlClient; |
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34 | using OpenMetaverse; |
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35 | using OpenSim.Framework; |
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36 | using OpenSim.Data; |
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37 | |||
38 | namespace OpenSim.Data.MySQL |
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39 | { |
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40 | /// <summary> |
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41 | /// A MySQL Interface for the Asset Server |
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42 | /// </summary> |
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43 | public class MySQLAssetData : AssetDataBase |
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44 | { |
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45 | private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); |
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46 | |||
47 | private string m_connectionString; |
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48 | |||
49 | protected virtual Assembly Assembly |
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50 | { |
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51 | get { return GetType().Assembly; } |
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52 | } |
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53 | |||
54 | #region IPlugin Members |
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55 | |||
56 | public override string Version { get { return "1.0.0.0"; } } |
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57 | |||
58 | /// <summary> |
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59 | /// <para>Initialises Asset interface</para> |
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60 | /// <para> |
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61 | /// <list type="bullet"> |
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62 | /// <item>Loads and initialises the MySQL storage plugin.</item> |
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63 | /// <item>Warns and uses the obsolete mysql_connection.ini if connect string is empty.</item> |
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64 | /// <item>Check for migration</item> |
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65 | /// </list> |
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66 | /// </para> |
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67 | /// </summary> |
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68 | /// <param name="connect">connect string</param> |
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69 | public override void Initialise(string connect) |
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70 | { |
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71 | m_connectionString = connect; |
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72 | |||
73 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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74 | { |
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75 | dbcon.Open(); |
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76 | Migration m = new Migration(dbcon, Assembly, "AssetStore"); |
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77 | m.Update(); |
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78 | } |
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79 | } |
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80 | |||
81 | public override void Initialise() |
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82 | { |
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83 | throw new NotImplementedException(); |
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84 | } |
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85 | |||
86 | public override void Dispose() { } |
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87 | |||
88 | /// <summary> |
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89 | /// The name of this DB provider |
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90 | /// </summary> |
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91 | override public string Name |
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92 | { |
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93 | get { return "MySQL Asset storage engine"; } |
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94 | } |
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95 | |||
96 | #endregion |
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97 | |||
98 | #region IAssetDataPlugin Members |
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99 | |||
100 | /// <summary> |
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101 | /// Fetch Asset <paramref name="assetID"/> from database |
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102 | /// </summary> |
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103 | /// <param name="assetID">Asset UUID to fetch</param> |
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104 | /// <returns>Return the asset</returns> |
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105 | /// <remarks>On failure : throw an exception and attempt to reconnect to database</remarks> |
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106 | override public AssetBase GetAsset(UUID assetID) |
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107 | { |
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108 | AssetBase asset = null; |
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109 | |||
110 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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111 | { |
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112 | dbcon.Open(); |
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113 | |||
114 | using (MySqlCommand cmd = new MySqlCommand( |
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115 | "SELECT name, description, assetType, local, temporary, asset_flags, CreatorID, data FROM assets WHERE id=?id", |
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116 | dbcon)) |
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117 | { |
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118 | cmd.Parameters.AddWithValue("?id", assetID.ToString()); |
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119 | |||
120 | try |
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121 | { |
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122 | using (MySqlDataReader dbReader = cmd.ExecuteReader(CommandBehavior.SingleRow)) |
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123 | { |
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124 | if (dbReader.Read()) |
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125 | { |
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126 | asset = new AssetBase(assetID, (string)dbReader["name"], (sbyte)dbReader["assetType"], dbReader["CreatorID"].ToString()); |
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127 | asset.Data = (byte[])dbReader["data"]; |
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128 | asset.Description = (string)dbReader["description"]; |
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129 | |||
130 | string local = dbReader["local"].ToString(); |
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131 | if (local.Equals("1") || local.Equals("true", StringComparison.InvariantCultureIgnoreCase)) |
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132 | asset.Local = true; |
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133 | else |
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134 | asset.Local = false; |
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135 | |||
136 | asset.Temporary = Convert.ToBoolean(dbReader["temporary"]); |
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137 | asset.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]); |
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138 | } |
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139 | } |
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140 | } |
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141 | catch (Exception e) |
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142 | { |
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143 | m_log.Error( |
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144 | string.Format("[ASSETS DB]: MySql failure fetching asset {0}. Exception ", assetID), e); |
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145 | } |
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146 | } |
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147 | } |
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148 | |||
149 | return asset; |
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150 | } |
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151 | |||
152 | /// <summary> |
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153 | /// Create an asset in database, or update it if existing. |
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154 | /// </summary> |
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155 | /// <param name="asset">Asset UUID to create</param> |
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156 | /// <remarks>On failure : Throw an exception and attempt to reconnect to database</remarks> |
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157 | override public void StoreAsset(AssetBase asset) |
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158 | { |
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159 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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160 | { |
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161 | dbcon.Open(); |
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162 | |||
163 | using (MySqlCommand cmd = |
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164 | new MySqlCommand( |
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165 | "replace INTO assets(id, name, description, assetType, local, temporary, create_time, access_time, asset_flags, CreatorID, data)" + |
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166 | "VALUES(?id, ?name, ?description, ?assetType, ?local, ?temporary, ?create_time, ?access_time, ?asset_flags, ?CreatorID, ?data)", |
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167 | dbcon)) |
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168 | { |
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169 | string assetName = asset.Name; |
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170 | if (asset.Name.Length > AssetBase.MAX_ASSET_NAME) |
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171 | { |
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172 | assetName = asset.Name.Substring(0, AssetBase.MAX_ASSET_NAME); |
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173 | m_log.WarnFormat( |
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174 | "[ASSET DB]: Name '{0}' for asset {1} truncated from {2} to {3} characters on add", |
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175 | asset.Name, asset.ID, asset.Name.Length, assetName.Length); |
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176 | } |
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177 | |||
178 | string assetDescription = asset.Description; |
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179 | if (asset.Description.Length > AssetBase.MAX_ASSET_DESC) |
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180 | { |
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181 | assetDescription = asset.Description.Substring(0, AssetBase.MAX_ASSET_DESC); |
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182 | m_log.WarnFormat( |
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183 | "[ASSET DB]: Description '{0}' for asset {1} truncated from {2} to {3} characters on add", |
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184 | asset.Description, asset.ID, asset.Description.Length, assetDescription.Length); |
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185 | } |
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186 | |||
187 | try |
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188 | { |
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189 | using (cmd) |
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190 | { |
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191 | // create unix epoch time |
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192 | int now = (int)Utils.DateTimeToUnixTime(DateTime.UtcNow); |
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193 | cmd.Parameters.AddWithValue("?id", asset.ID); |
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194 | cmd.Parameters.AddWithValue("?name", assetName); |
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195 | cmd.Parameters.AddWithValue("?description", assetDescription); |
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196 | cmd.Parameters.AddWithValue("?assetType", asset.Type); |
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197 | cmd.Parameters.AddWithValue("?local", asset.Local); |
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198 | cmd.Parameters.AddWithValue("?temporary", asset.Temporary); |
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199 | cmd.Parameters.AddWithValue("?create_time", now); |
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200 | cmd.Parameters.AddWithValue("?access_time", now); |
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201 | cmd.Parameters.AddWithValue("?CreatorID", asset.Metadata.CreatorID); |
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202 | cmd.Parameters.AddWithValue("?asset_flags", (int)asset.Flags); |
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203 | cmd.Parameters.AddWithValue("?data", asset.Data); |
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204 | cmd.ExecuteNonQuery(); |
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205 | } |
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206 | } |
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207 | catch (Exception e) |
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208 | { |
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209 | m_log.Error( |
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210 | string.Format( |
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211 | "[ASSET DB]: MySQL failure creating asset {0} with name {1}. Exception ", |
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212 | asset.FullID, asset.Name) |
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213 | , e); |
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214 | } |
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215 | } |
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216 | } |
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217 | } |
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218 | |||
219 | private void UpdateAccessTime(AssetBase asset) |
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220 | { |
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221 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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222 | { |
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223 | dbcon.Open(); |
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224 | |||
225 | using (MySqlCommand cmd |
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226 | = new MySqlCommand("update assets set access_time=?access_time where id=?id", dbcon)) |
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227 | { |
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228 | try |
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229 | { |
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230 | using (cmd) |
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231 | { |
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232 | // create unix epoch time |
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233 | int now = (int)Utils.DateTimeToUnixTime(DateTime.UtcNow); |
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234 | cmd.Parameters.AddWithValue("?id", asset.ID); |
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235 | cmd.Parameters.AddWithValue("?access_time", now); |
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236 | cmd.ExecuteNonQuery(); |
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237 | } |
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238 | } |
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239 | catch (Exception e) |
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240 | { |
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241 | m_log.Error( |
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242 | string.Format( |
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243 | "[ASSETS DB]: Failure updating access_time for asset {0} with name {1}. Exception ", |
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244 | asset.FullID, asset.Name), |
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245 | e); |
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246 | } |
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247 | } |
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248 | } |
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249 | } |
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250 | |||
251 | /// <summary> |
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252 | /// Check if the assets exist in the database. |
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253 | /// </summary> |
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254 | /// <param name="uuidss">The assets' IDs</param> |
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255 | /// <returns>For each asset: true if it exists, false otherwise</returns> |
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256 | public override bool[] AssetsExist(UUID[] uuids) |
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257 | { |
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258 | if (uuids.Length == 0) |
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259 | return new bool[0]; |
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260 | |||
261 | HashSet<UUID> exist = new HashSet<UUID>(); |
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262 | |||
263 | string ids = "'" + string.Join("','", uuids) + "'"; |
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264 | string sql = string.Format("SELECT id FROM assets WHERE id IN ({0})", ids); |
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265 | |||
266 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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267 | { |
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268 | dbcon.Open(); |
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269 | using (MySqlCommand cmd = new MySqlCommand(sql, dbcon)) |
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270 | { |
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271 | using (MySqlDataReader dbReader = cmd.ExecuteReader()) |
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272 | { |
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273 | while (dbReader.Read()) |
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274 | { |
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275 | UUID id = DBGuid.FromDB(dbReader["id"]); |
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276 | exist.Add(id); |
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277 | } |
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278 | } |
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279 | } |
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280 | } |
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281 | |||
282 | bool[] results = new bool[uuids.Length]; |
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283 | for (int i = 0; i < uuids.Length; i++) |
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284 | results[i] = exist.Contains(uuids[i]); |
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285 | |||
286 | return results; |
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287 | } |
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288 | |||
289 | /// <summary> |
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290 | /// Returns a list of AssetMetadata objects. The list is a subset of |
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291 | /// the entire data set offset by <paramref name="start" /> containing |
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292 | /// <paramref name="count" /> elements. |
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293 | /// </summary> |
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294 | /// <param name="start">The number of results to discard from the total data set.</param> |
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295 | /// <param name="count">The number of rows the returned list should contain.</param> |
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296 | /// <returns>A list of AssetMetadata objects.</returns> |
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297 | public override List<AssetMetadata> FetchAssetMetadataSet(int start, int count) |
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298 | { |
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299 | List<AssetMetadata> retList = new List<AssetMetadata>(count); |
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300 | |||
301 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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302 | { |
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303 | dbcon.Open(); |
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304 | |||
305 | using (MySqlCommand cmd |
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306 | = new MySqlCommand( |
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307 | "SELECT name,description,assetType,temporary,id,asset_flags,CreatorID FROM assets LIMIT ?start, ?count", |
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308 | dbcon)) |
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309 | { |
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310 | cmd.Parameters.AddWithValue("?start", start); |
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311 | cmd.Parameters.AddWithValue("?count", count); |
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312 | |||
313 | try |
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314 | { |
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315 | using (MySqlDataReader dbReader = cmd.ExecuteReader()) |
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316 | { |
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317 | while (dbReader.Read()) |
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318 | { |
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319 | AssetMetadata metadata = new AssetMetadata(); |
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320 | metadata.Name = (string)dbReader["name"]; |
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321 | metadata.Description = (string)dbReader["description"]; |
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322 | metadata.Type = (sbyte)dbReader["assetType"]; |
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323 | metadata.Temporary = Convert.ToBoolean(dbReader["temporary"]); // Not sure if this is correct. |
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324 | metadata.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]); |
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325 | metadata.FullID = DBGuid.FromDB(dbReader["id"]); |
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326 | metadata.CreatorID = dbReader["CreatorID"].ToString(); |
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327 | |||
328 | // Current SHA1s are not stored/computed. |
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329 | metadata.SHA1 = new byte[] { }; |
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330 | |||
331 | retList.Add(metadata); |
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332 | } |
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333 | } |
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334 | } |
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335 | catch (Exception e) |
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336 | { |
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337 | m_log.Error( |
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338 | string.Format( |
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339 | "[ASSETS DB]: MySql failure fetching asset set from {0}, count {1}. Exception ", |
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340 | start, count), |
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341 | e); |
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342 | } |
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343 | } |
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344 | } |
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345 | |||
346 | return retList; |
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347 | } |
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348 | |||
349 | public override bool Delete(string id) |
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350 | { |
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351 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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352 | { |
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353 | dbcon.Open(); |
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354 | |||
355 | using (MySqlCommand cmd = new MySqlCommand("delete from assets where id=?id", dbcon)) |
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356 | { |
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357 | cmd.Parameters.AddWithValue("?id", id); |
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358 | cmd.ExecuteNonQuery(); |
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359 | } |
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360 | } |
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361 | |||
362 | return true; |
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363 | } |
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364 | |||
365 | #endregion |
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366 | } |
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367 | } |