clockwerk-opensim-stable – 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 | private object m_dbLock = new object(); |
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49 | |||
50 | protected virtual Assembly Assembly |
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51 | { |
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52 | get { return GetType().Assembly; } |
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53 | } |
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54 | |||
55 | #region IPlugin Members |
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56 | |||
57 | public override string Version { get { return "1.0.0.0"; } } |
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58 | |||
59 | /// <summary> |
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60 | /// <para>Initialises Asset interface</para> |
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61 | /// <para> |
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62 | /// <list type="bullet"> |
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63 | /// <item>Loads and initialises the MySQL storage plugin.</item> |
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64 | /// <item>Warns and uses the obsolete mysql_connection.ini if connect string is empty.</item> |
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65 | /// <item>Check for migration</item> |
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66 | /// </list> |
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67 | /// </para> |
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68 | /// </summary> |
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69 | /// <param name="connect">connect string</param> |
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70 | public override void Initialise(string connect) |
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71 | { |
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72 | m_connectionString = connect; |
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73 | |||
74 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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75 | { |
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76 | dbcon.Open(); |
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77 | Migration m = new Migration(dbcon, Assembly, "AssetStore"); |
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78 | m.Update(); |
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79 | } |
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80 | } |
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81 | |||
82 | public override void Initialise() |
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83 | { |
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84 | throw new NotImplementedException(); |
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85 | } |
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86 | |||
87 | public override void Dispose() { } |
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88 | |||
89 | /// <summary> |
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90 | /// The name of this DB provider |
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91 | /// </summary> |
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92 | override public string Name |
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93 | { |
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94 | get { return "MySQL Asset storage engine"; } |
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95 | } |
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96 | |||
97 | #endregion |
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98 | |||
99 | #region IAssetDataPlugin Members |
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100 | |||
101 | /// <summary> |
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102 | /// Fetch Asset <paramref name="assetID"/> from database |
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103 | /// </summary> |
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104 | /// <param name="assetID">Asset UUID to fetch</param> |
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105 | /// <returns>Return the asset</returns> |
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106 | /// <remarks>On failure : throw an exception and attempt to reconnect to database</remarks> |
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107 | override public AssetBase GetAsset(UUID assetID) |
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108 | { |
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109 | AssetBase asset = null; |
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110 | lock (m_dbLock) |
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111 | { |
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112 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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113 | { |
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114 | dbcon.Open(); |
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115 | |||
116 | using (MySqlCommand cmd = new MySqlCommand( |
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117 | "SELECT name, description, assetType, local, temporary, asset_flags, CreatorID, data FROM assets WHERE id=?id", |
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118 | dbcon)) |
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119 | { |
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120 | cmd.Parameters.AddWithValue("?id", assetID.ToString()); |
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121 | |||
122 | try |
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123 | { |
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124 | using (MySqlDataReader dbReader = cmd.ExecuteReader(CommandBehavior.SingleRow)) |
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125 | { |
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126 | if (dbReader.Read()) |
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127 | { |
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128 | asset = new AssetBase(assetID, (string)dbReader["name"], (sbyte)dbReader["assetType"], dbReader["CreatorID"].ToString()); |
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129 | asset.Data = (byte[])dbReader["data"]; |
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130 | asset.Description = (string)dbReader["description"]; |
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131 | |||
132 | string local = dbReader["local"].ToString(); |
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133 | if (local.Equals("1") || local.Equals("true", StringComparison.InvariantCultureIgnoreCase)) |
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134 | asset.Local = true; |
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135 | else |
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136 | asset.Local = false; |
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137 | |||
138 | asset.Temporary = Convert.ToBoolean(dbReader["temporary"]); |
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139 | asset.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]); |
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140 | } |
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141 | } |
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142 | } |
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143 | catch (Exception e) |
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144 | { |
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145 | m_log.Error( |
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146 | string.Format("[ASSETS DB]: MySql failure fetching asset {0}. Exception ", assetID), e); |
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147 | } |
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148 | } |
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149 | } |
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150 | } |
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151 | return asset; |
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152 | } |
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153 | |||
154 | /// <summary> |
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155 | /// Create an asset in database, or update it if existing. |
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156 | /// </summary> |
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157 | /// <param name="asset">Asset UUID to create</param> |
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158 | /// <remarks>On failure : Throw an exception and attempt to reconnect to database</remarks> |
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159 | override public void StoreAsset(AssetBase asset) |
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160 | { |
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161 | lock (m_dbLock) |
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162 | { |
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163 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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164 | { |
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165 | dbcon.Open(); |
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166 | |||
167 | using (MySqlCommand cmd = |
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168 | new MySqlCommand( |
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169 | "replace INTO assets(id, name, description, assetType, local, temporary, create_time, access_time, asset_flags, CreatorID, data)" + |
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170 | "VALUES(?id, ?name, ?description, ?assetType, ?local, ?temporary, ?create_time, ?access_time, ?asset_flags, ?CreatorID, ?data)", |
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171 | dbcon)) |
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172 | { |
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173 | string assetName = asset.Name; |
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174 | if (asset.Name.Length > 64) |
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175 | { |
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176 | assetName = asset.Name.Substring(0, 64); |
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177 | m_log.WarnFormat( |
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178 | "[ASSET DB]: Name '{0}' for asset {1} truncated from {2} to {3} characters on add", |
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179 | asset.Name, asset.ID, asset.Name.Length, assetName.Length); |
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180 | } |
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181 | |||
182 | string assetDescription = asset.Description; |
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183 | if (asset.Description.Length > 64) |
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184 | { |
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185 | assetDescription = asset.Description.Substring(0, 64); |
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186 | m_log.WarnFormat( |
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187 | "[ASSET DB]: Description '{0}' for asset {1} truncated from {2} to {3} characters on add", |
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188 | asset.Description, asset.ID, asset.Description.Length, assetDescription.Length); |
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189 | } |
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190 | |||
191 | try |
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192 | { |
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193 | using (cmd) |
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194 | { |
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195 | // create unix epoch time |
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196 | int now = (int)Utils.DateTimeToUnixTime(DateTime.UtcNow); |
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197 | cmd.Parameters.AddWithValue("?id", asset.ID); |
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198 | cmd.Parameters.AddWithValue("?name", assetName); |
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199 | cmd.Parameters.AddWithValue("?description", assetDescription); |
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200 | cmd.Parameters.AddWithValue("?assetType", asset.Type); |
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201 | cmd.Parameters.AddWithValue("?local", asset.Local); |
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202 | cmd.Parameters.AddWithValue("?temporary", asset.Temporary); |
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203 | cmd.Parameters.AddWithValue("?create_time", now); |
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204 | cmd.Parameters.AddWithValue("?access_time", now); |
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205 | cmd.Parameters.AddWithValue("?CreatorID", asset.Metadata.CreatorID); |
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206 | cmd.Parameters.AddWithValue("?asset_flags", (int)asset.Flags); |
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207 | cmd.Parameters.AddWithValue("?data", asset.Data); |
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208 | cmd.ExecuteNonQuery(); |
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209 | } |
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210 | } |
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211 | catch (Exception e) |
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212 | { |
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213 | m_log.Error( |
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214 | string.Format( |
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215 | "[ASSET DB]: MySQL failure creating asset {0} with name {1}. Exception ", |
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216 | asset.FullID, asset.Name) |
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217 | , e); |
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218 | } |
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219 | } |
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220 | } |
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221 | } |
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222 | } |
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223 | |||
224 | private void UpdateAccessTime(AssetBase asset) |
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225 | { |
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226 | lock (m_dbLock) |
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227 | { |
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228 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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229 | { |
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230 | dbcon.Open(); |
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231 | |||
232 | using (MySqlCommand cmd |
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233 | = new MySqlCommand("update assets set access_time=?access_time where id=?id", dbcon)) |
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234 | { |
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235 | try |
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236 | { |
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237 | using (cmd) |
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238 | { |
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239 | // create unix epoch time |
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240 | int now = (int)Utils.DateTimeToUnixTime(DateTime.UtcNow); |
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241 | cmd.Parameters.AddWithValue("?id", asset.ID); |
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242 | cmd.Parameters.AddWithValue("?access_time", now); |
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243 | cmd.ExecuteNonQuery(); |
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244 | } |
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245 | } |
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246 | catch (Exception e) |
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247 | { |
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248 | m_log.Error( |
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249 | string.Format( |
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250 | "[ASSETS DB]: Failure updating access_time for asset {0} with name {1}. Exception ", |
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251 | asset.FullID, asset.Name), |
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252 | e); |
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253 | } |
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254 | } |
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255 | } |
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256 | } |
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257 | } |
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258 | |||
259 | /// <summary> |
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260 | /// Check if the asset exists in the database |
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261 | /// </summary> |
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262 | /// <param name="uuid">The asset UUID</param> |
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263 | /// <returns>true if it exists, false otherwise.</returns> |
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264 | override public bool ExistsAsset(UUID uuid) |
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265 | { |
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266 | // m_log.DebugFormat("[ASSETS DB]: Checking for asset {0}", uuid); |
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267 | |||
268 | bool assetExists = false; |
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269 | |||
270 | lock (m_dbLock) |
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271 | { |
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272 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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273 | { |
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274 | dbcon.Open(); |
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275 | using (MySqlCommand cmd = new MySqlCommand("SELECT id FROM assets WHERE id=?id", dbcon)) |
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276 | { |
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277 | cmd.Parameters.AddWithValue("?id", uuid.ToString()); |
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278 | |||
279 | try |
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280 | { |
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281 | using (MySqlDataReader dbReader = cmd.ExecuteReader(CommandBehavior.SingleRow)) |
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282 | { |
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283 | if (dbReader.Read()) |
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284 | { |
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285 | // m_log.DebugFormat("[ASSETS DB]: Found asset {0}", uuid); |
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286 | assetExists = true; |
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287 | } |
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288 | } |
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289 | } |
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290 | catch (Exception e) |
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291 | { |
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292 | m_log.Error( |
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293 | string.Format("[ASSETS DB]: MySql failure fetching asset {0}. Exception ", uuid), e); |
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294 | } |
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295 | } |
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296 | } |
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297 | } |
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298 | |||
299 | return assetExists; |
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300 | } |
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301 | |||
302 | /// <summary> |
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303 | /// Returns a list of AssetMetadata objects. The list is a subset of |
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304 | /// the entire data set offset by <paramref name="start" /> containing |
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305 | /// <paramref name="count" /> elements. |
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306 | /// </summary> |
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307 | /// <param name="start">The number of results to discard from the total data set.</param> |
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308 | /// <param name="count">The number of rows the returned list should contain.</param> |
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309 | /// <returns>A list of AssetMetadata objects.</returns> |
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310 | public override List<AssetMetadata> FetchAssetMetadataSet(int start, int count) |
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311 | { |
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312 | List<AssetMetadata> retList = new List<AssetMetadata>(count); |
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313 | |||
314 | lock (m_dbLock) |
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315 | { |
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316 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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317 | { |
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318 | dbcon.Open(); |
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319 | |||
320 | using (MySqlCommand cmd |
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321 | = new MySqlCommand( |
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322 | "SELECT name,description,assetType,temporary,id,asset_flags,CreatorID FROM assets LIMIT ?start, ?count", |
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323 | dbcon)) |
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324 | { |
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325 | cmd.Parameters.AddWithValue("?start", start); |
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326 | cmd.Parameters.AddWithValue("?count", count); |
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327 | |||
328 | try |
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329 | { |
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330 | using (MySqlDataReader dbReader = cmd.ExecuteReader()) |
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331 | { |
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332 | while (dbReader.Read()) |
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333 | { |
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334 | AssetMetadata metadata = new AssetMetadata(); |
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335 | metadata.Name = (string)dbReader["name"]; |
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336 | metadata.Description = (string)dbReader["description"]; |
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337 | metadata.Type = (sbyte)dbReader["assetType"]; |
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338 | metadata.Temporary = Convert.ToBoolean(dbReader["temporary"]); // Not sure if this is correct. |
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339 | metadata.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]); |
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340 | metadata.FullID = DBGuid.FromDB(dbReader["id"]); |
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341 | metadata.CreatorID = dbReader["CreatorID"].ToString(); |
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342 | |||
343 | // Current SHA1s are not stored/computed. |
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344 | metadata.SHA1 = new byte[] { }; |
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345 | |||
346 | retList.Add(metadata); |
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347 | } |
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348 | } |
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349 | } |
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350 | catch (Exception e) |
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351 | { |
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352 | m_log.Error( |
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353 | string.Format( |
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354 | "[ASSETS DB]: MySql failure fetching asset set from {0}, count {1}. Exception ", |
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355 | start, count), |
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356 | e); |
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357 | } |
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358 | } |
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359 | } |
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360 | } |
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361 | |||
362 | return retList; |
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363 | } |
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364 | |||
365 | public override bool Delete(string id) |
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366 | { |
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367 | lock (m_dbLock) |
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368 | { |
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369 | using (MySqlConnection dbcon = new MySqlConnection(m_connectionString)) |
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370 | { |
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371 | dbcon.Open(); |
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372 | |||
373 | using (MySqlCommand cmd = new MySqlCommand("delete from assets where id=?id", dbcon)) |
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374 | { |
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375 | cmd.Parameters.AddWithValue("?id", id); |
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376 | cmd.ExecuteNonQuery(); |
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377 | } |
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378 | } |
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379 | } |
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380 | |||
381 | return true; |
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382 | } |
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383 | |||
384 | #endregion |
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385 | } |
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386 | } |