aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim/Data/SQLite/SQLiteUserData.cs
blob: ae3cb7285c2efcbfec942aa96b56284a30c325bd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
/*
 * 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 OpenSim 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.Data;
using System.Reflection;
using libsecondlife;
using log4net;
using Mono.Data.SqliteClient;
using OpenSim.Framework;

namespace OpenSim.Data.SQLite
{
    /// <summary>
    /// A User storage interface for the SQLite database system
    /// </summary>
    public class SQLiteUserData : UserDataBase
    {
        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        /// <summary>
        /// The database manager
        /// </summary>
        /// <summary>
        /// Artificial constructor called upon plugin load
        /// </summary>
        private const string SelectUserByUUID = "select * from users where UUID=:UUID";
        private const string SelectUserByName = "select * from users where username=:username and surname=:surname";
        private const string SelectFriendsByUUID = "select a.friendID, a.friendPerms, b.friendPerms from userfriends as a, userfriends as b where a.ownerID=:ownerID and b.ownerID=a.friendID and b.friendID=a.ownerID";

        private const string userSelect = "select * from users";
        private const string userFriendsSelect = "select a.ownerID as ownerID,a.friendID as friendID,a.friendPerms as friendPerms,b.friendPerms as ownerperms, b.ownerID as fownerID, b.friendID as ffriendID from userfriends as a, userfriends as b";

        private const string AvatarPickerAndSQL = "select * from users where username like :username and surname like :surname";
        private const string AvatarPickerOrSQL = "select * from users where username like :username or surname like :surname";

        private Dictionary<LLUUID, AvatarAppearance> aplist = new Dictionary<LLUUID, AvatarAppearance>();
        private DataSet ds;
        private SqliteDataAdapter da;
        private SqliteDataAdapter daf;
        SqliteConnection g_conn;

        public override void Initialise()
        {
            m_log.Info("[SQLiteUserData]: " + Name + " cannot be default-initialized!");
            throw new PluginNotInitialisedException (Name);
        }

        /// <summary>
        /// <list type="bullet">
        /// <item>Initialises User Interface</item>
        /// <item>Loads and initialises a new SQLite connection and maintains it.</item>
        /// <item>use default URI if connect string string is empty.</item>
        /// </list>
        /// </summary>
        /// <param name="connect">connect string</param>
        override public void Initialise(string connect)
        {
            // default to something sensible
            if (connect == "")
                connect = "URI=file:userprofiles.db,version=3";

            SqliteConnection conn = new SqliteConnection(connect);

            // This sucks, but It doesn't seem to work with the dataset Syncing :P
            g_conn = conn;
            g_conn.Open();

            Assembly assem = GetType().Assembly;
            Migration m = new Migration(g_conn, assem, "UserStore");
            m.Update();


            ds = new DataSet();
            da = new SqliteDataAdapter(new SqliteCommand(userSelect, conn));
            daf = new SqliteDataAdapter(new SqliteCommand(userFriendsSelect, conn));

            lock (ds)
            {
                ds.Tables.Add(createUsersTable());
                ds.Tables.Add(createUserAgentsTable());
                ds.Tables.Add(createUserFriendsTable());

                setupUserCommands(da, conn);
                da.Fill(ds.Tables["users"]);

                setupUserFriendsCommands(daf, conn);
                daf.Fill(ds.Tables["userfriends"]);
            }

            return;
        }

        public override void Dispose () {}

        /// <summary>
        /// see IUserDataPlugin,
        /// Get user data profile by UUID
        /// </summary>
        /// <param name="uuid">User UUID</param>
        /// <returns>user profile data</returns>
        override public UserProfileData GetUserByUUID(LLUUID uuid)
        {
            lock (ds)
            {
                DataRow row = ds.Tables["users"].Rows.Find(Util.ToRawUuidString(uuid));
                if (row != null)
                {
                    UserProfileData user = buildUserProfile(row);
                    row = ds.Tables["useragents"].Rows.Find(Util.ToRawUuidString(uuid));
                    if (row != null)
                    {
                        user.CurrentAgent = buildUserAgent(row);
                    }
                    return user;
                }
                else
                {
                    return null;
                }
            }
        }

        /// <summary>
        /// see IUserDataPlugin,
        /// Get user data profile by name
        /// </summary>
        /// <param name="fname">first name</param>
        /// <param name="lname">last name</param>
        /// <returns>user profile data</returns>
        override public UserProfileData GetUserByName(string fname, string lname)
        {
            string select = "surname = '" + lname + "' and username = '" + fname + "'";
            lock (ds)
            {
                DataRow[] rows = ds.Tables["users"].Select(select);
                if (rows.Length > 0)
                {
                    UserProfileData user = buildUserProfile(rows[0]);
                    DataRow row = ds.Tables["useragents"].Rows.Find(Util.ToRawUuidString(user.ID));
                    if (row != null)
                    {
                        user.CurrentAgent = buildUserAgent(row);
                    }
                    return user;
                }
                else
                {
                    return null;
                }
            }
        }

        #region User Friends List Data

        /// <summary>
        /// Add a new friend in the friendlist
        /// </summary>
        /// <param name="friendlistowner">UUID of the friendlist owner</param>
        /// <param name="friend">UUID of the friend to add</param>
        /// <param name="perms">permission flag</param>
        override public void AddNewUserFriend(LLUUID friendlistowner, LLUUID friend, uint perms)
        {
            string InsertFriends = "insert into userfriends(ownerID, friendID, friendPerms) values(:ownerID, :friendID, :perms)";

            using (SqliteCommand cmd = new SqliteCommand(InsertFriends, g_conn))
            {
                cmd.Parameters.Add(new SqliteParameter(":ownerID", friendlistowner.UUID.ToString()));
                cmd.Parameters.Add(new SqliteParameter(":friendID", friend.UUID.ToString()));
                cmd.Parameters.Add(new SqliteParameter(":perms", perms));
                cmd.ExecuteNonQuery();
            }
            using (SqliteCommand cmd = new SqliteCommand(InsertFriends, g_conn))
            {
                cmd.Parameters.Add(new SqliteParameter(":ownerID", friend.UUID.ToString()));
                cmd.Parameters.Add(new SqliteParameter(":friendID", friendlistowner.UUID.ToString()));
                cmd.Parameters.Add(new SqliteParameter(":perms", perms));
                cmd.ExecuteNonQuery();
            }
        }

        /// <summary>
        /// Remove a user from the friendlist
        /// </summary>
        /// <param name="friendlistowner">UUID of the friendlist owner</param>
        /// <param name="friend">UUID of the friend to remove</param>
        override public void RemoveUserFriend(LLUUID friendlistowner, LLUUID friend)
        {
            string DeletePerms = "delete from friendlist where (ownerID=:ownerID and friendID=:friendID) or (ownerID=:friendID and friendID=:ownerID)";
            using (SqliteCommand cmd = new SqliteCommand(DeletePerms, g_conn))
            {
                cmd.Parameters.Add(new SqliteParameter(":ownerID", friendlistowner.UUID.ToString()));
                cmd.Parameters.Add(new SqliteParameter(":friendID", friend.UUID.ToString()));
                cmd.ExecuteNonQuery();
            }
        }

        /// <summary>
        /// Update the friendlist permission
        /// </summary>
        /// <param name="friendlistowner">UUID of the friendlist owner</param>
        /// <param name="friend">UUID of the friend to modify</param>
        /// <param name="perms">updated permission flag</param>
        override public void UpdateUserFriendPerms(LLUUID friendlistowner, LLUUID friend, uint perms)
        {
            string UpdatePerms = "update friendlist set perms=:perms where ownerID=:ownerID and friendID=:friendID";
            using (SqliteCommand cmd = new SqliteCommand(UpdatePerms, g_conn))
            {
                cmd.Parameters.Add(new SqliteParameter(":perms", perms));
                cmd.Parameters.Add(new SqliteParameter(":ownerID", friendlistowner.UUID.ToString()));
                cmd.Parameters.Add(new SqliteParameter(":friendID", friend.UUID.ToString()));
                cmd.ExecuteNonQuery();
            }
        }

        /// <summary>
        /// Get (fetch?) the friendlist for a user
        /// </summary>
        /// <param name="friendlistowner">UUID of the friendlist owner</param>
        /// <returns>The friendlist list</returns>
        override public List<FriendListItem> GetUserFriendList(LLUUID friendlistowner)
        {
            List<FriendListItem> returnlist = new List<FriendListItem>();

            using (SqliteCommand cmd = new SqliteCommand(SelectFriendsByUUID, g_conn))
            {
                cmd.Parameters.Add(new SqliteParameter(":ownerID", friendlistowner.UUID.ToString()));

                try
                {
                    using (IDataReader reader = cmd.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            FriendListItem user = new FriendListItem();
                            user.FriendListOwner = friendlistowner;
                            user.Friend = new LLUUID((string)reader[0]);
                            user.FriendPerms = Convert.ToUInt32(reader[1]);
                            user.FriendListOwnerPerms = Convert.ToUInt32(reader[2]);
                            returnlist.Add(user);
                        }
                        reader.Close();
                    }
                }
                catch (Exception ex)
                {
                    m_log.Error("[USER DB]: Exception getting friends list for user: " + ex.ToString());
                }
            }

            return returnlist;
        }




        #endregion

        /// <summary>
        /// STUB, Update the user's current region
        /// </summary>
        /// <param name="avatarid">UUID of the user</param>
        /// <param name="regionuuid">UUID of the region</param>
        /// <param name="regionhandle">region handle</param>
        /// <remarks>DO NOTHING</remarks>
        override public void UpdateUserCurrentRegion(LLUUID avatarid, LLUUID regionuuid, ulong regionhandle)
        {
            //m_log.Info("[USER DB]: Stub UpdateUserCUrrentRegion called");
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="queryID"></param>
        /// <param name="query"></param>
        /// <returns></returns>
        override public List<AvatarPickerAvatar> GeneratePickerResults(LLUUID queryID, string query)
        {
            List<AvatarPickerAvatar> returnlist = new List<AvatarPickerAvatar>();
            string[] querysplit;
            querysplit = query.Split(' ');
            if (querysplit.Length == 2)
            {
                using (SqliteCommand cmd = new SqliteCommand(AvatarPickerAndSQL, g_conn))
                {
                    cmd.Parameters.Add(new SqliteParameter(":username", querysplit[0] + "%"));
                    cmd.Parameters.Add(new SqliteParameter(":surname", querysplit[1] + "%"));

                    using (IDataReader reader = cmd.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            AvatarPickerAvatar user = new AvatarPickerAvatar();
                            user.AvatarID = new LLUUID((string) reader["UUID"]);
                            user.firstName = (string) reader["username"];
                            user.lastName = (string) reader["surname"];
                            returnlist.Add(user);
                        }
                        reader.Close();
                    }
                }
            }
            else if (querysplit.Length == 1)
            {
                using (SqliteCommand cmd = new SqliteCommand(AvatarPickerOrSQL, g_conn))
                {
                    cmd.Parameters.Add(new SqliteParameter(":username", querysplit[0] + "%"));
                    cmd.Parameters.Add(new SqliteParameter(":surname", querysplit[0] + "%"));

                    using (IDataReader reader = cmd.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            AvatarPickerAvatar user = new AvatarPickerAvatar();
                            user.AvatarID = new LLUUID((string) reader["UUID"]);
                            user.firstName = (string) reader["username"];
                            user.lastName = (string) reader["surname"];
                            returnlist.Add(user);
                        }
                        reader.Close();
                    }
                }
            }
            return returnlist;
        }

        /// <summary>
        /// Returns a user by UUID direct
        /// </summary>
        /// <param name="uuid">The user's account ID</param>
        /// <returns>A matching user profile</returns>
        override public UserAgentData GetAgentByUUID(LLUUID uuid)
        {
            try
            {
                return GetUserByUUID(uuid).CurrentAgent;
            }
            catch (Exception)
            {
                return null;
            }
        }

        /// <summary>
        /// Returns a session by account name
        /// </summary>
        /// <param name="name">The account name</param>
        /// <returns>The user's session agent</returns>
        override public UserAgentData GetAgentByName(string name)
        {
            return GetAgentByName(name.Split(' ')[0], name.Split(' ')[1]);
        }

        /// <summary>
        /// Returns a session by account name
        /// </summary>
        /// <param name="fname">The first part of the user's account name</param>
        /// <param name="lname">The second part of the user's account name</param>
        /// <returns>A user agent</returns>
        override public UserAgentData GetAgentByName(string fname, string lname)
        {
            try
            {
                return GetUserByName(fname, lname).CurrentAgent;
            }
            catch (Exception)
            {
                return null;
            }
        }

        /// <summary>
        /// DEPRECATED? Store the weblogin key
        /// </summary>
        /// <param name="AgentID">UUID of the user</param>
        /// <param name="WebLoginKey">UUID of the weblogin</param>
        override public void StoreWebLoginKey(LLUUID AgentID, LLUUID WebLoginKey)
        {
            DataTable users = ds.Tables["users"];
            lock (ds)
            {
                DataRow row = users.Rows.Find(Util.ToRawUuidString(AgentID));
                if (row == null)
                {
                    m_log.Warn("[USER DB]: Unable to store new web login key for non-existant user");
                }
                else
                {
                    UserProfileData user = GetUserByUUID(AgentID);
                    user.WebLoginKey = WebLoginKey;
                    fillUserRow(row, user);
                    da.Update(ds, "users");

                }
            }

        }

        /// <summary>
        /// Creates a new user profile
        /// </summary>
        /// <param name="user">The profile to add to the database</param>
        override public void AddNewUserProfile(UserProfileData user)
        {
            DataTable users = ds.Tables["users"];
            lock (ds)
            {
                DataRow row = users.Rows.Find(Util.ToRawUuidString(user.ID));
                if (row == null)
                {
                    row = users.NewRow();
                    fillUserRow(row, user);
                    users.Rows.Add(row);
                }
                else
                {
                    fillUserRow(row, user);

                }
                // This is why we're getting the 'logins never log-off'..    because It isn't clearing the
                // useragents table once the useragent is null
                //
                // A database guy should look at this and figure out the best way to clear the useragents table.
                if (user.CurrentAgent != null)
                {
                    DataTable ua = ds.Tables["useragents"];
                    row = ua.Rows.Find(Util.ToRawUuidString(user.ID));
                    if (row == null)
                    {
                        row = ua.NewRow();
                        fillUserAgentRow(row, user.CurrentAgent);
                        ua.Rows.Add(row);
                    }
                    else
                    {
                        fillUserAgentRow(row, user.CurrentAgent);
                    }
                }
                else
                {
                    // I just added this to help the standalone login situation.
                    //It still needs to be looked at by a Database guy
                    DataTable ua = ds.Tables["useragents"];
                    row = ua.Rows.Find(Util.ToRawUuidString(user.ID));

                    if (row == null)
                    {
                        // do nothing
                    }
                    else
                    {
                        row.Delete();
                        ua.AcceptChanges();
                    }
                }

                m_log.Info("[USER DB]: " +
                                         "Syncing user database: " + ds.Tables["users"].Rows.Count + " users stored");
                // save changes off to disk
                da.Update(ds, "users");
            }
        }

        /// <summary>
        /// Creates a new user profile
        /// </summary>
        /// <param name="user">The profile to add to the database</param>
        /// <returns>True on success, false on error</returns>
        override public bool UpdateUserProfile(UserProfileData user)
        {
            try
            {
                AddNewUserProfile(user);
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }

        /// <summary>
        /// Creates a new user agent
        /// </summary>
        /// <param name="agent">The agent to add to the database</param>
        override public void AddNewUserAgent(UserAgentData agent)
        {
            // Do nothing. yet.
        }

        /// <summary>
        /// Transfers money between two user accounts
        /// </summary>
        /// <param name="from">Starting account</param>
        /// <param name="to">End account</param>
        /// <param name="amount">The amount to move</param>
        /// <returns>Success?</returns>
        override public bool MoneyTransferRequest(LLUUID from, LLUUID to, uint amount)
        {
            return true;
        }

        /// <summary>
        /// Transfers inventory between two accounts
        /// </summary>
        /// <remarks>Move to inventory server</remarks>
        /// <param name="from">Senders account</param>
        /// <param name="to">Receivers account</param>
        /// <param name="item">Inventory item</param>
        /// <returns>Success?</returns>
        override public bool InventoryTransferRequest(LLUUID from, LLUUID to, LLUUID item)
        {
            return true;
        }


        /// <summary>
        /// Appearance.
        /// TODO: stubs for now to do in memory appearance.
        /// </summary>
        /// <param name="user">The user UUID</param>
        /// <returns>Avatar Appearence</returns>
        override public AvatarAppearance GetUserAppearance(LLUUID user)
        {
            AvatarAppearance aa = null;
            try {
                aa = aplist[user];
                m_log.Info("[APPEARANCE] Found appearance for " + user.ToString() + aa.ToString());
            } catch (System.Collections.Generic.KeyNotFoundException) {
                m_log.InfoFormat("[APPEARANCE] No appearance found for {0}", user.ToString());
            }
            return aa;
        }

        /// <summary>
        /// Update a user appearence
        /// </summary>
        /// <param name="user">the user UUID</param>
        /// <param name="appearance">appearence</param>
        override public void UpdateUserAppearance(LLUUID user, AvatarAppearance appearance)
        {
            appearance.Owner = user;
            aplist[user] = appearance;
        }

        /// <summary>
        /// Returns the name of the storage provider
        /// </summary>
        /// <returns>Storage provider name</returns>
        override public string Name
        {
            get {return "Sqlite Userdata";}
        }

        /// <summary>
        /// Returns the version of the storage provider
        /// </summary>
        /// <returns>Storage provider version</returns>
        override public string Version
        {
            get {return "0.1";}
        }

        /***********************************************************************
         *
         *  DataTable creation
         *
         **********************************************************************/
        /***********************************************************************
         *
         *  Database Definition Functions
         *
         *  This should be db agnostic as we define them in ADO.NET terms
         *
         **********************************************************************/

        /// <summary>
        /// Create the "users" table
        /// </summary>
        /// <returns>DataTable</returns>
        private static DataTable createUsersTable()
        {
            DataTable users = new DataTable("users");

            SQLiteUtil.createCol(users, "UUID", typeof (String));
            SQLiteUtil.createCol(users, "username", typeof (String));
            SQLiteUtil.createCol(users, "surname", typeof (String));
            SQLiteUtil.createCol(users, "passwordHash", typeof (String));
            SQLiteUtil.createCol(users, "passwordSalt", typeof (String));

            SQLiteUtil.createCol(users, "homeRegionX", typeof (Int32));
            SQLiteUtil.createCol(users, "homeRegionY", typeof (Int32));
            SQLiteUtil.createCol(users, "homeRegionID", typeof (String));
            SQLiteUtil.createCol(users, "homeLocationX", typeof (Double));
            SQLiteUtil.createCol(users, "homeLocationY", typeof (Double));
            SQLiteUtil.createCol(users, "homeLocationZ", typeof (Double));
            SQLiteUtil.createCol(users, "homeLookAtX", typeof (Double));
            SQLiteUtil.createCol(users, "homeLookAtY", typeof (Double));
            SQLiteUtil.createCol(users, "homeLookAtZ", typeof (Double));
            SQLiteUtil.createCol(users, "created", typeof (Int32));
            SQLiteUtil.createCol(users, "lastLogin", typeof (Int32));
            SQLiteUtil.createCol(users, "rootInventoryFolderID", typeof (String));
            SQLiteUtil.createCol(users, "userInventoryURI", typeof (String));
            SQLiteUtil.createCol(users, "userAssetURI", typeof (String));
            SQLiteUtil.createCol(users, "profileCanDoMask", typeof (Int32));
            SQLiteUtil.createCol(users, "profileWantDoMask", typeof (Int32));
            SQLiteUtil.createCol(users, "profileAboutText", typeof (String));
            SQLiteUtil.createCol(users, "profileFirstText", typeof (String));
            SQLiteUtil.createCol(users, "profileImage", typeof (String));
            SQLiteUtil.createCol(users, "profileFirstImage", typeof (String));
            SQLiteUtil.createCol(users, "webLoginKey", typeof(String));
            SQLiteUtil.createCol(users, "userFlags", typeof (Int32));
            SQLiteUtil.createCol(users, "godLevel", typeof (Int32));
            SQLiteUtil.createCol(users, "customType", typeof (String));
            SQLiteUtil.createCol(users, "partner", typeof (String));
            // Add in contraints
            users.PrimaryKey = new DataColumn[] {users.Columns["UUID"]};
            return users;
        }

        /// <summary>
        /// Create the "useragents" table
        /// </summary>
        /// <returns>Data Table</returns>
        private static DataTable createUserAgentsTable()
        {
            DataTable ua = new DataTable("useragents");
            // this is the UUID of the user
            SQLiteUtil.createCol(ua, "UUID", typeof (String));
            SQLiteUtil.createCol(ua, "agentIP", typeof (String));
            SQLiteUtil.createCol(ua, "agentPort", typeof (Int32));
            SQLiteUtil.createCol(ua, "agentOnline", typeof (Boolean));
            SQLiteUtil.createCol(ua, "sessionID", typeof (String));
            SQLiteUtil.createCol(ua, "secureSessionID", typeof (String));
            SQLiteUtil.createCol(ua, "regionID", typeof (String));
            SQLiteUtil.createCol(ua, "loginTime", typeof (Int32));
            SQLiteUtil.createCol(ua, "logoutTime", typeof (Int32));
            SQLiteUtil.createCol(ua, "currentRegion", typeof (String));
            SQLiteUtil.createCol(ua, "currentHandle", typeof (String));
            // vectors
            SQLiteUtil.createCol(ua, "currentPosX", typeof (Double));
            SQLiteUtil.createCol(ua, "currentPosY", typeof (Double));
            SQLiteUtil.createCol(ua, "currentPosZ", typeof (Double));
            // constraints
            ua.PrimaryKey = new DataColumn[] {ua.Columns["UUID"]};

            return ua;
        }

        /// <summary>
        /// Create the "userfriends" table
        /// </summary>
        /// <returns>Data Table</returns>
        private static DataTable createUserFriendsTable()
        {
            DataTable ua = new DataTable("userfriends");
            // table contains user <----> user relationship with perms
            SQLiteUtil.createCol(ua, "ownerID", typeof(String));
            SQLiteUtil.createCol(ua, "friendID", typeof(String));
            SQLiteUtil.createCol(ua, "friendPerms", typeof(Int32));
            SQLiteUtil.createCol(ua, "ownerPerms", typeof(Int32));
            SQLiteUtil.createCol(ua, "datetimestamp", typeof(Int32));

            return ua;
        }

        /***********************************************************************
         *
         *  Convert between ADO.NET <=> OpenSim Objects
         *
         *  These should be database independant
         *
         **********************************************************************/

        /// <summary>
        /// TODO: this doesn't work yet because something more
        /// interesting has to be done to actually get these values
        /// back out.  Not enough time to figure it out yet.
        /// </summary>
        /// <param name="row"></param>
        /// <returns></returns>
        private static UserProfileData buildUserProfile(DataRow row)
        {
            UserProfileData user = new UserProfileData();
            LLUUID tmp;
            LLUUID.TryParse((String)row["UUID"], out tmp);
            user.ID = tmp;
            user.FirstName = (String) row["username"];
            user.SurName = (String) row["surname"];
            user.PasswordHash = (String) row["passwordHash"];
            user.PasswordSalt = (String) row["passwordSalt"];

            user.HomeRegionX = Convert.ToUInt32(row["homeRegionX"]);
            user.HomeRegionY = Convert.ToUInt32(row["homeRegionY"]);
            user.HomeLocation = new LLVector3(
                Convert.ToSingle(row["homeLocationX"]),
                Convert.ToSingle(row["homeLocationY"]),
                Convert.ToSingle(row["homeLocationZ"])
                );
            user.HomeLookAt = new LLVector3(
                Convert.ToSingle(row["homeLookAtX"]),
                Convert.ToSingle(row["homeLookAtY"]),
                Convert.ToSingle(row["homeLookAtZ"])
                );

            LLUUID regionID = LLUUID.Zero;
            LLUUID.TryParse(row["homeRegionID"].ToString(), out regionID); // it's ok if it doesn't work; just use LLUUID.Zero
            user.HomeRegionID = regionID;

            user.Created = Convert.ToInt32(row["created"]);
            user.LastLogin = Convert.ToInt32(row["lastLogin"]);
            user.RootInventoryFolderID = new LLUUID((String) row["rootInventoryFolderID"]);
            user.UserInventoryURI = (String) row["userInventoryURI"];
            user.UserAssetURI = (String) row["userAssetURI"];
            user.CanDoMask = Convert.ToUInt32(row["profileCanDoMask"]);
            user.WantDoMask = Convert.ToUInt32(row["profileWantDoMask"]);
            user.AboutText = (String) row["profileAboutText"];
            user.FirstLifeAboutText = (String) row["profileFirstText"];
            LLUUID.TryParse((String)row["profileImage"], out tmp);
            user.Image = tmp;
            LLUUID.TryParse((String)row["profileFirstImage"], out tmp);
            user.FirstLifeImage = tmp;
            user.WebLoginKey = new LLUUID((String) row["webLoginKey"]);
            user.UserFlags = Convert.ToInt32(row["userFlags"]);
            user.GodLevel = Convert.ToInt32(row["godLevel"]);
            user.CustomType = row["customType"].ToString();
            user.Partner = new LLUUID((String) row["partner"]);

            return user;
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="row"></param>
        /// <param name="user"></param>
        private void fillUserRow(DataRow row, UserProfileData user)
        {
            row["UUID"] = Util.ToRawUuidString(user.ID);
            row["username"] = user.FirstName;
            row["surname"] = user.SurName;
            row["passwordHash"] = user.PasswordHash;
            row["passwordSalt"] = user.PasswordSalt;


            row["homeRegionX"] = user.HomeRegionX;
            row["homeRegionY"] = user.HomeRegionY;
            row["homeRegionID"] = user.HomeRegionID;
            row["homeLocationX"] = user.HomeLocation.X;
            row["homeLocationY"] = user.HomeLocation.Y;
            row["homeLocationZ"] = user.HomeLocation.Z;
            row["homeLookAtX"] = user.HomeLookAt.X;
            row["homeLookAtY"] = user.HomeLookAt.Y;
            row["homeLookAtZ"] = user.HomeLookAt.Z;

            row["created"] = user.Created;
            row["lastLogin"] = user.LastLogin;
            row["rootInventoryFolderID"] = user.RootInventoryFolderID;
            row["userInventoryURI"] = user.UserInventoryURI;
            row["userAssetURI"] = user.UserAssetURI;
            row["profileCanDoMask"] = user.CanDoMask;
            row["profileWantDoMask"] = user.WantDoMask;
            row["profileAboutText"] = user.AboutText;
            row["profileFirstText"] = user.FirstLifeAboutText;
            row["profileImage"] = user.Image;
            row["profileFirstImage"] = user.FirstLifeImage;
            row["webLoginKey"] = user.WebLoginKey;
            row["userFlags"] = user.UserFlags;
            row["godLevel"] = user.GodLevel;
            row["customType"] = user.CustomType == null ? "" : user.CustomType;
            row["partner"] = user.Partner.ToString();

            // ADO.NET doesn't handle NULL very well
            foreach (DataColumn col in ds.Tables["users"].Columns)
            {
                if (row[col] == null)
                {
                    row[col] = String.Empty;
                }
            }
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="row"></param>
        /// <returns></returns>
        private static UserAgentData buildUserAgent(DataRow row)
        {
            UserAgentData ua = new UserAgentData();

            ua.ProfileID = new LLUUID((String) row["UUID"]);
            ua.AgentIP = (String) row["agentIP"];
            ua.AgentPort = Convert.ToUInt32(row["agentPort"]);
            ua.AgentOnline = Convert.ToBoolean(row["agentOnline"]);
            ua.SessionID = new LLUUID((String) row["sessionID"]);
            ua.SecureSessionID = new LLUUID((String) row["secureSessionID"]);
            ua.InitialRegion = new LLUUID((String) row["regionID"]);
            ua.LoginTime = Convert.ToInt32(row["loginTime"]);
            ua.LogoutTime = Convert.ToInt32(row["logoutTime"]);
            ua.Region = new LLUUID((String) row["currentRegion"]);
            ua.Handle = Convert.ToUInt64(row["currentHandle"]);
            ua.Position = new LLVector3(
                Convert.ToSingle(row["currentPosX"]),
                Convert.ToSingle(row["currentPosY"]),
                Convert.ToSingle(row["currentPosZ"])
                );
            return ua;
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="row"></param>
        /// <param name="ua"></param>
        private static void fillUserAgentRow(DataRow row, UserAgentData ua)
        {
            row["UUID"] = ua.ProfileID;
            row["agentIP"] = ua.AgentIP;
            row["agentPort"] = ua.AgentPort;
            row["agentOnline"] = ua.AgentOnline;
            row["sessionID"] = ua.SessionID;
            row["secureSessionID"] = ua.SecureSessionID;
            row["regionID"] = ua.InitialRegion;
            row["loginTime"] = ua.LoginTime;
            row["logoutTime"] = ua.LogoutTime;
            row["currentRegion"] = ua.Region;
            row["currentHandle"] = ua.Handle.ToString();
            // vectors
            row["currentPosX"] = ua.Position.X;
            row["currentPosY"] = ua.Position.Y;
            row["currentPosZ"] = ua.Position.Z;
        }

        /***********************************************************************
         *
         *  Database Binding functions
         *
         *  These will be db specific due to typing, and minor differences
         *  in databases.
         *
         **********************************************************************/

        /// <summary>
        ///
        /// </summary>
        /// <param name="da"></param>
        /// <param name="conn"></param>
        private void setupUserCommands(SqliteDataAdapter da, SqliteConnection conn)
        {
            da.InsertCommand = SQLiteUtil.createInsertCommand("users", ds.Tables["users"]);
            da.InsertCommand.Connection = conn;

            da.UpdateCommand = SQLiteUtil.createUpdateCommand("users", "UUID=:UUID", ds.Tables["users"]);
            da.UpdateCommand.Connection = conn;

            SqliteCommand delete = new SqliteCommand("delete from users where UUID = :UUID");
            delete.Parameters.Add(SQLiteUtil.createSqliteParameter("UUID", typeof(String)));
            delete.Connection = conn;
            da.DeleteCommand = delete;
        }

        /// <summary>
        ///
        /// </summary>
        /// <param name="daf"></param>
        /// <param name="conn"></param>
        private void setupUserFriendsCommands(SqliteDataAdapter daf, SqliteConnection conn)
        {
            daf.InsertCommand = SQLiteUtil.createInsertCommand("userfriends", ds.Tables["userfriends"]);
            daf.InsertCommand.Connection = conn;

            daf.UpdateCommand = SQLiteUtil.createUpdateCommand("userfriends", "ownerID=:ownerID and friendID=:friendID", ds.Tables["userfriends"]);
            daf.UpdateCommand.Connection = conn;

            SqliteCommand delete = new SqliteCommand("delete from userfriends where ownerID=:ownerID and friendID=:friendID");
            delete.Parameters.Add(SQLiteUtil.createSqliteParameter("ownerID", typeof(String)));
            delete.Parameters.Add(SQLiteUtil.createSqliteParameter("friendID", typeof(String)));
            delete.Connection = conn;
            daf.DeleteCommand = delete;

        }

        override public void ResetAttachments(LLUUID userID)
        {
        }
    }
}