aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Data/MySQL/MySQLAssetData.cs
diff options
context:
space:
mode:
Diffstat (limited to 'OpenSim/Data/MySQL/MySQLAssetData.cs')
-rw-r--r--OpenSim/Data/MySQL/MySQLAssetData.cs367
1 files changed, 367 insertions, 0 deletions
diff --git a/OpenSim/Data/MySQL/MySQLAssetData.cs b/OpenSim/Data/MySQL/MySQLAssetData.cs
new file mode 100644
index 0000000..8569c90
--- /dev/null
+++ b/OpenSim/Data/MySQL/MySQLAssetData.cs
@@ -0,0 +1,367 @@
1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System;
29using System.Data;
30using System.Reflection;
31using System.Collections.Generic;
32using log4net;
33using MySql.Data.MySqlClient;
34using OpenMetaverse;
35using OpenSim.Framework;
36using OpenSim.Data;
37
38namespace OpenSim.Data.MySQL
39{
40 /// <summary>
41 /// A MySQL Interface for the Asset Server
42 /// </summary>
43 public class MySQLAssetData : AssetDataBase
44 {
45 private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
46
47 private string m_connectionString;
48
49 protected virtual Assembly Assembly
50 {
51 get { return GetType().Assembly; }
52 }
53
54 #region IPlugin Members
55
56 public override string Version { get { return "1.0.0.0"; } }
57
58 /// <summary>
59 /// <para>Initialises Asset interface</para>
60 /// <para>
61 /// <list type="bullet">
62 /// <item>Loads and initialises the MySQL storage plugin.</item>
63 /// <item>Warns and uses the obsolete mysql_connection.ini if connect string is empty.</item>
64 /// <item>Check for migration</item>
65 /// </list>
66 /// </para>
67 /// </summary>
68 /// <param name="connect">connect string</param>
69 public override void Initialise(string connect)
70 {
71 m_connectionString = connect;
72
73 using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
74 {
75 dbcon.Open();
76 Migration m = new Migration(dbcon, Assembly, "AssetStore");
77 m.Update();
78 dbcon.Close();
79 }
80 }
81
82 public override void Initialise()
83 {
84 throw new NotImplementedException();
85 }
86
87 public override void Dispose() { }
88
89 /// <summary>
90 /// The name of this DB provider
91 /// </summary>
92 override public string Name
93 {
94 get { return "MySQL Asset storage engine"; }
95 }
96
97 #endregion
98
99 #region IAssetDataPlugin Members
100
101 /// <summary>
102 /// Fetch Asset <paramref name="assetID"/> from database
103 /// </summary>
104 /// <param name="assetID">Asset UUID to fetch</param>
105 /// <returns>Return the asset</returns>
106 /// <remarks>On failure : throw an exception and attempt to reconnect to database</remarks>
107 override public AssetBase GetAsset(UUID assetID)
108 {
109 AssetBase asset = null;
110
111 using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
112 {
113 dbcon.Open();
114
115 using (MySqlCommand cmd = new MySqlCommand(
116 "SELECT name, description, assetType, local, temporary, asset_flags, CreatorID, data FROM assets WHERE id=?id",
117 dbcon))
118 {
119 cmd.Parameters.AddWithValue("?id", assetID.ToString());
120
121 try
122 {
123 using (MySqlDataReader dbReader = cmd.ExecuteReader(CommandBehavior.SingleRow))
124 {
125 if (dbReader.Read())
126 {
127 asset = new AssetBase(assetID, (string)dbReader["name"], (sbyte)dbReader["assetType"], dbReader["CreatorID"].ToString());
128 asset.Data = (byte[])dbReader["data"];
129 asset.Description = (string)dbReader["description"];
130
131 string local = dbReader["local"].ToString();
132 if (local.Equals("1") || local.Equals("true", StringComparison.InvariantCultureIgnoreCase))
133 asset.Local = true;
134 else
135 asset.Local = false;
136
137 asset.Temporary = Convert.ToBoolean(dbReader["temporary"]);
138 asset.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]);
139 }
140 }
141 }
142 catch (Exception e)
143 {
144 m_log.Error(
145 string.Format("[ASSETS DB]: MySql failure fetching asset {0}. Exception ", assetID), e);
146 }
147 }
148 dbcon.Close();
149 }
150
151 return asset;
152 }
153
154 /// <summary>
155 /// Create an asset in database, or update it if existing.
156 /// </summary>
157 /// <param name="asset">Asset UUID to create</param>
158 /// <remarks>On failure : Throw an exception and attempt to reconnect to database</remarks>
159 override public bool StoreAsset(AssetBase asset)
160 {
161 string assetName = asset.Name;
162 if (asset.Name.Length > AssetBase.MAX_ASSET_NAME)
163 {
164 assetName = asset.Name.Substring(0, AssetBase.MAX_ASSET_NAME);
165 m_log.WarnFormat(
166 "[ASSET DB]: Name '{0}' for asset {1} truncated from {2} to {3} characters on add",
167 asset.Name, asset.ID, asset.Name.Length, assetName.Length);
168 }
169
170 string assetDescription = asset.Description;
171 if (asset.Description.Length > AssetBase.MAX_ASSET_DESC)
172 {
173 assetDescription = asset.Description.Substring(0, AssetBase.MAX_ASSET_DESC);
174 m_log.WarnFormat(
175 "[ASSET DB]: Description '{0}' for asset {1} truncated from {2} to {3} characters on add",
176 asset.Description, asset.ID, asset.Description.Length, assetDescription.Length);
177 }
178
179 using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
180 {
181 dbcon.Open();
182 using (MySqlCommand cmd =
183 new MySqlCommand(
184 "replace INTO assets(id, name, description, assetType, local, temporary, create_time, access_time, asset_flags, CreatorID, data)" +
185 "VALUES(?id, ?name, ?description, ?assetType, ?local, ?temporary, ?create_time, ?access_time, ?asset_flags, ?CreatorID, ?data)",
186 dbcon))
187 {
188 try
189 {
190 // create unix epoch time
191 int now = (int)Utils.DateTimeToUnixTime(DateTime.UtcNow);
192 cmd.Parameters.AddWithValue("?id", asset.ID);
193 cmd.Parameters.AddWithValue("?name", assetName);
194 cmd.Parameters.AddWithValue("?description", assetDescription);
195 cmd.Parameters.AddWithValue("?assetType", asset.Type);
196 cmd.Parameters.AddWithValue("?local", asset.Local);
197 cmd.Parameters.AddWithValue("?temporary", asset.Temporary);
198 cmd.Parameters.AddWithValue("?create_time", now);
199 cmd.Parameters.AddWithValue("?access_time", now);
200 cmd.Parameters.AddWithValue("?CreatorID", asset.Metadata.CreatorID);
201 cmd.Parameters.AddWithValue("?asset_flags", (int)asset.Flags);
202 cmd.Parameters.AddWithValue("?data", asset.Data);
203 cmd.ExecuteNonQuery();
204 dbcon.Close();
205 return true;
206 }
207 catch (Exception e)
208 {
209 m_log.ErrorFormat("[ASSET DB]: MySQL failure creating asset {0} with name \"{1}\". Error: {2}",
210 asset.FullID, asset.Name, e.Message);
211 dbcon.Close();
212 return false;
213 }
214 }
215 }
216 }
217
218 private void UpdateAccessTime(AssetBase asset)
219 {
220 using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
221 {
222 dbcon.Open();
223
224 using (MySqlCommand cmd
225 = new MySqlCommand("update assets set access_time=?access_time where id=?id", dbcon))
226 {
227 try
228 {
229 // create unix epoch time
230 int now = (int)Utils.DateTimeToUnixTime(DateTime.UtcNow);
231 cmd.Parameters.AddWithValue("?id", asset.ID);
232 cmd.Parameters.AddWithValue("?access_time", now);
233 cmd.ExecuteNonQuery();
234 }
235 catch (Exception e)
236 {
237 m_log.Error(
238 string.Format(
239 "[ASSETS DB]: Failure updating access_time for asset {0} with name {1}. Exception ",
240 asset.FullID, asset.Name),
241 e);
242 }
243 }
244 dbcon.Close();
245 }
246 }
247
248 /// <summary>
249 /// Check if the assets exist in the database.
250 /// </summary>
251 /// <param name="uuidss">The assets' IDs</param>
252 /// <returns>For each asset: true if it exists, false otherwise</returns>
253 public override bool[] AssetsExist(UUID[] uuids)
254 {
255 if (uuids.Length == 0)
256 return new bool[0];
257
258 HashSet<UUID> exist = new HashSet<UUID>();
259
260 string ids = "'" + string.Join("','", uuids) + "'";
261 string sql = string.Format("SELECT id FROM assets WHERE id IN ({0})", ids);
262
263 using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
264 {
265 dbcon.Open();
266 using (MySqlCommand cmd = new MySqlCommand(sql, dbcon))
267 {
268 using (MySqlDataReader dbReader = cmd.ExecuteReader())
269 {
270 while (dbReader.Read())
271 {
272 UUID id = DBGuid.FromDB(dbReader["id"]);
273 exist.Add(id);
274 }
275 }
276 }
277 dbcon.Close();
278 }
279
280 bool[] results = new bool[uuids.Length];
281 for (int i = 0; i < uuids.Length; i++)
282 results[i] = exist.Contains(uuids[i]);
283
284 return results;
285 }
286
287 /// <summary>
288 /// Returns a list of AssetMetadata objects. The list is a subset of
289 /// the entire data set offset by <paramref name="start" /> containing
290 /// <paramref name="count" /> elements.
291 /// </summary>
292 /// <param name="start">The number of results to discard from the total data set.</param>
293 /// <param name="count">The number of rows the returned list should contain.</param>
294 /// <returns>A list of AssetMetadata objects.</returns>
295 public override List<AssetMetadata> FetchAssetMetadataSet(int start, int count)
296 {
297 List<AssetMetadata> retList = new List<AssetMetadata>(count);
298
299 using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
300 {
301 dbcon.Open();
302
303 using (MySqlCommand cmd
304 = new MySqlCommand(
305 "SELECT name,description,assetType,temporary,id,asset_flags,CreatorID FROM assets LIMIT ?start, ?count",
306 dbcon))
307 {
308 cmd.Parameters.AddWithValue("?start", start);
309 cmd.Parameters.AddWithValue("?count", count);
310
311 try
312 {
313 using (MySqlDataReader dbReader = cmd.ExecuteReader())
314 {
315 while (dbReader.Read())
316 {
317 AssetMetadata metadata = new AssetMetadata();
318 metadata.Name = (string)dbReader["name"];
319 metadata.Description = (string)dbReader["description"];
320 metadata.Type = (sbyte)dbReader["assetType"];
321 metadata.Temporary = Convert.ToBoolean(dbReader["temporary"]); // Not sure if this is correct.
322 metadata.Flags = (AssetFlags)Convert.ToInt32(dbReader["asset_flags"]);
323 metadata.FullID = DBGuid.FromDB(dbReader["id"]);
324 metadata.CreatorID = dbReader["CreatorID"].ToString();
325
326 // Current SHA1s are not stored/computed.
327 metadata.SHA1 = new byte[] { };
328
329 retList.Add(metadata);
330 }
331 }
332 }
333 catch (Exception e)
334 {
335 m_log.Error(
336 string.Format(
337 "[ASSETS DB]: MySql failure fetching asset set from {0}, count {1}. Exception ",
338 start, count),
339 e);
340 }
341 }
342 dbcon.Close();
343 }
344
345 return retList;
346 }
347
348 public override bool Delete(string id)
349 {
350 using (MySqlConnection dbcon = new MySqlConnection(m_connectionString))
351 {
352 dbcon.Open();
353
354 using (MySqlCommand cmd = new MySqlCommand("delete from assets where id=?id", dbcon))
355 {
356 cmd.Parameters.AddWithValue("?id", id);
357 cmd.ExecuteNonQuery();
358 }
359 dbcon.Close();
360 }
361
362 return true;
363 }
364
365 #endregion
366 }
367}