aboutsummaryrefslogtreecommitdiff
path: root/src/SemanticScuttle/Service/Bookmark.php
blob: e569ade07177d484b7f3266533e56e8903cbd7db (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
<?php
/**
 * SemanticScuttle - your social bookmark manager.
 *
 * PHP version 5.
 *
 * @category Bookmarking
 * @package  SemanticScuttle
 * @author   Benjamin Huynh-Kim-Bang <mensonge@users.sourceforge.net>
 * @author   Christian Weiske <cweiske@cweiske.de>
 * @author   Eric Dane <ericdane@users.sourceforge.net>
 * @license  GPL http://www.gnu.org/licenses/gpl.html
 * @link     http://sourceforge.net/projects/semanticscuttle
 */

/**
 * SemanticScuttle bookmark service.
 *
 * @category Bookmarking
 * @package  SemanticScuttle
 * @author   Benjamin Huynh-Kim-Bang <mensonge@users.sourceforge.net>
 * @author   Christian Weiske <cweiske@cweiske.de>
 * @author   Eric Dane <ericdane@users.sourceforge.net>
 * @license  GPL http://www.gnu.org/licenses/gpl.html
 * @link     http://sourceforge.net/projects/semanticscuttle
 */
class SemanticScuttle_Service_Bookmark extends SemanticScuttle_DbService
{
    /**
     * Returns the single service instance
     *
     * @param DB $db Database object
     *
     * @return SemanticScuttle_Service
     */
    public static function getInstance($db)
    {
        static $instance;
        if (!isset($instance)) {
            $instance = new self($db);
        }
        return $instance;
    }



    public function __construct($db)
    {
        $this->db = $db;
        $this->tablename = $GLOBALS['tableprefix'] .'bookmarks';
    }



    function _getbookmark($fieldname, $value, $all = false)
    {
        if (!$all) {
            $userservice = SemanticScuttle_Service_Factory :: get('User');
            $sId = $userservice->getCurrentUserId();
            $range = ' AND uId = '. $sId;
        } else {
            $range = '';
        }

        $query = 'SELECT * FROM '. $this->getTableName() .' WHERE '. $fieldname .' = "'. $this->db->sql_escape($value) .'"'. $range;

        if (!($dbresult = & $this->db->sql_query_limit($query, 1, 0))) {
            message_die(GENERAL_ERROR, 'Could not get bookmark', '', __LINE__, __FILE__, $query, $this->db);
            return false;
        }

        if ($row =& $this->db->sql_fetchrow($dbresult)) {
            $output = $row;
        } else {
            $output =  false;
        }
        $this->db->sql_freeresult($dbresult);
        return $output;
    }



    /**
     * Load a single bookmark and return it.
     * When a user is logged on, the returned array will contain
     * keys "hasVoted" and "vote".
     *
     * @param integer $bid          Bookmark ID
     * @param boolean $include_tags If tags shall be loaded
     *
     * @return mixed Array with bookmark data or false in case
     *               of an error.
     */
    function getBookmark($bid, $include_tags = false)
    {
        if (!is_numeric($bid)) {
            return false;
        }

        $userservice = SemanticScuttle_Service_Factory::get('User');

        $query_1 = 'B.*';
        $query_2 = $this->getTableName() . ' as B';

        //Voting system
        //needs to be directly after FROM bookmarks
        if ($GLOBALS['enableVoting'] && $userservice->isLoggedOn()) {
            $cuid = $userservice->getCurrentUserId();
            $vs = SemanticScuttle_Service_Factory::get('Vote');
            $query_1 .= ', !ISNULL(V.bId) as hasVoted, V.vote as vote';
            $query_2 .= ' LEFT JOIN ' . $vs->getTableName() . ' AS V'
                . ' ON B.bId = V.bId'
                . ' AND V.uId = ' . (int)$cuid;
        }

        $sql = 'SELECT ' . $query_1 . ' FROM '
            . $query_2
            .' WHERE B.bId = '. $this->db->sql_escape($bid);

        if (!($dbresult = & $this->db->sql_query($sql))) {
            message_die(
                GENERAL_ERROR, 'Could not get bookmark',
                '', __LINE__, __FILE__, $sql, $this->db
            );
        }

        if ($row = $this->db->sql_fetchrow($dbresult)) {
            if ($include_tags) {
                $b2tservice = SemanticScuttle_Service_Factory::get('Bookmark2Tag');
                $row['tags'] = $b2tservice->getTagsForBookmark($bid);
            }
            $output = $row;
        } else {
            $output = false;
        }
        $this->db->sql_freeresult($dbresult);
        return $output;
    }



    function getBookmarkByAddress($address)
    {
        $hash = md5($address);
        return $this->getBookmarkByHash($hash);
    }



    function getBookmarkByHash($hash)
    {
        return $this->_getbookmark('bHash', $hash, true);
    }



    /* Counts bookmarks for a user. $range = {'public', 'shared', 'private', 'all'}*/
    function countBookmarks($uId, $range = 'public')
    {
        $sql = 'SELECT COUNT(*) FROM '. $GLOBALS['tableprefix'] .'bookmarks';
        $sql.= ' WHERE uId = '.$uId;
        switch ($range) {
            case 'all':
            //no constraints
            break;
            case 'private':
            $sql.= ' AND bStatus = 2';
            break;
            case 'shared':
            $sql.= ' AND bStatus = 1';
            break;
            case 'public':
            default:
            $sql.= ' AND bStatus = 0';
            break;
        }

        if (!($dbresult = & $this->db->sql_query($sql))) {
            message_die(GENERAL_ERROR, 'Could not get vars', '', __LINE__, __FILE__, $sql, $this->db);
        }
        return $this->db->sql_fetchfield(0, 0);
    }



    /**
     * Check if a bookmark may be edited by the current user
     *
     * @param integer|array $bookmark Bookmark uId or bookmark array
     *
     * @return boolean True if allowed
     */
    function editAllowed($bookmark)
    {
        if (!is_numeric($bookmark) && (!is_array($bookmark)
            || !is_numeric($bookmark['bId']))
        ) {
            return false;
        }

        if (!is_array($bookmark)
             && !($bookmark = $this->getBookmark($bookmark))
        ) {
            return false;
        }

        $userservice = SemanticScuttle_Service_Factory::get('User');
        $user = $userservice->getCurrentUser();

        //user has to be either admin, or owner
        if ($GLOBALS['adminsCanModifyBookmarksFromOtherUsers']
            && $userservice->isAdmin($user)
        ) {
            return true;
        } else {
            return ($bookmark['uId'] == $user['uId']);
        }
    }



    function bookmarkExists($address = false, $uid = NULL)
    {
        if (!$address) {
            return;
        }

        $address = $this->normalize($address);

        $crit = array ('bHash' => md5($address));
        if (isset ($uid)) {
            $crit['uId'] = $uid;
        }

        $sql = 'SELECT COUNT(*) FROM '. $GLOBALS['tableprefix'] .'bookmarks WHERE '. $this->db->sql_build_array('SELECT', $crit);
        if (!($dbresult = & $this->db->sql_query($sql))) {
            message_die(GENERAL_ERROR, 'Could not get vars', '', __LINE__, __FILE__, $sql, $this->db);
        }
        if($this->db->sql_fetchfield(0, 0) > 0) {
            $output = true;
        } else {
            $output = false;
        }
        $this->db->sql_freeresult($dbresult);
        return $output;
    }



    /**
     * Adds a bookmark to the database.
     *
     * @param string  $address     Full URL of the bookmark
     * @param string  $title       Bookmark title
     * @param string  $description Long bookmark description
     * @param string  $privateNote Private note for the user.
     * @param string  $status      Bookmark visibility:
     *                             0 - public
     *                             1 - shared
     *                             2 - private
     * @param array   $tags        Array of tags
     * @param string  $date        Date when the bookmark has been created
     *                             originally. Used in combination with
     *                             $fromImport. Has to be a strtotime()
     *                             interpretable string.
     * @param boolean $fromApi     True when api call is responsible.
     * @param boolean $fromImport  True when the bookmark is from an import.
     * @param integer $sId         ID of user who creates the bookmark.
     *
     * @return integer Bookmark ID
     */
    public function addBookmark(
        $address, $title, $description, $privateNote, $status, $tags,
        $date = null, $fromApi = false, $fromImport = false, $sId = null
    ) {
        if ($sId === null) {
            $userservice = SemanticScuttle_Service_Factory::get('User');
            $sId = $userservice->getCurrentUserId();
        }

        $address = $this->normalize($address);

        if (getenv('HTTP_CLIENT_IP')) {
            $ip = getenv('HTTP_CLIENT_IP');
        } else if (getenv('REMOTE_ADDR')) {
            $ip = getenv('REMOTE_ADDR');
        } else {
            $ip = getenv('HTTP_X_FORWARDED_FOR');
        }

        /*
         * Note that if date is NULL, then it's added with a date and
         * time of now, and if it's present,
         * it's expected to be a string that's interpretable by strtotime().
         */
        if (is_null($date) || $date == '') {
            $time = time();
        } else {
            $time = strtotime($date);
        }
        $datetime = gmdate('Y-m-d H:i:s', $time);

        // Set up the SQL insert statement and execute it.
        $values = array(
            'uId' => intval($sId),
            'bIp' => $ip,
            'bDatetime' => $datetime,
            'bModified' => $datetime,
            'bTitle' => $title,
            'bAddress' => $address,
            'bDescription' => $description,
            'bPrivateNote' => $privateNote,
            'bStatus' => intval($status),
            'bHash' => md5($address)
        );

        $sql = 'INSERT INTO '. $this->getTableName()
            .' ' . $this->db->sql_build_array('INSERT', $values);
        $this->db->sql_transaction('begin');

        if (!($dbresult = $this->db->sql_query($sql))) {
            $this->db->sql_transaction('rollback');
            message_die(
                GENERAL_ERROR,
                'Could not insert bookmark',
                '', __LINE__, __FILE__, $sql, $this->db
            );
            return false;
        }

        // Get the resultant row ID for the bookmark.
        $bId = $this->db->sql_nextid($dbresult);
        if (!isset($bId) || !is_int($bId)) {
            $this->db->sql_transaction('rollback');
            message_die(
                GENERAL_ERROR,
                'Could not insert bookmark',
                '', __LINE__, __FILE__, $sql, $this->db
            );
            return false;
        }

        $uriparts  = explode('.', $address);
        $extension = end($uriparts);
        unset($uriparts);

        $b2tservice = SemanticScuttle_Service_Factory::get('Bookmark2Tag');
        $attachok   = $b2tservice->attachTags(
            $bId, $tags, $fromApi, $extension, false, $fromImport
        );
        if (!$attachok) {
            $this->db->sql_transaction('rollback');
            message_die(
                GENERAL_ERROR,
                'Could not insert bookmark',
                '', __LINE__, __FILE__, $sql, $this->db
            );
            return false;
        }
        $this->db->sql_transaction('commit');

        // Everything worked out, so return the new bookmark's bId.
        return $bId;
    }//public function addBookmark(..)



    /**
     * Update an existing bookmark.
     *
     * @param integer $bId         Bookmark ID
     * @param string  $address     Full URL of the bookmark
     * @param string  $title       Bookmark title
     * @param string  $description Long bookmark description
     * @param string  $privateNote Private note for the user.
     * @param string  $status      Bookmark visibility:
     *                             0 - public
     *                             1 - shared
     *                             2 - private
     * @param array   $categories  Array of tags
     * @param string  $date        Date when the bookmark has been created
     *                             originally. Used in combination with
     *                             $fromImport. Has to be a strtotime()
     *                             interpretable string.
     * @param boolean $fromApi     True when api call is responsible.
     *
     * @return boolean True if all went well, false if not.
     */
    public function updateBookmark(
        $bId, $address, $title, $description, $privateNote, $status,
        $categories, $date = NULL, $fromApi = false
    ) {
        if (!is_numeric($bId)) {
            return false;
        }

        // Get the client's IP address and the date; note that the date is in GMT.
        if (getenv('HTTP_CLIENT_IP'))
        $ip = getenv('HTTP_CLIENT_IP');
        else
        if (getenv('REMOTE_ADDR'))
        $ip = getenv('REMOTE_ADDR');
        else
        $ip = getenv('HTTP_X_FORWARDED_FOR');

        $moddatetime = gmdate('Y-m-d H:i:s', time());

        $address = $this->normalize($address);

        //check if a new address ($address) doesn't already exist for another bookmark from the same user
        $bookmark = $this->getBookmark($bId);
        if($bookmark['bAddress'] != $address && $this->bookmarkExists($address, $bookmark['uId'])) {
            message_die(GENERAL_ERROR, 'Could not update bookmark (URL already existing = '.$address.')', '', __LINE__, __FILE__);
            return false;
        }

        // Set up the SQL update statement and execute it.
        $updates = array('bModified' => $moddatetime, 'bTitle' => $title, 'bAddress' => $address, 'bDescription' => $description, 'bPrivateNote' => $privateNote, 'bStatus' => $status, 'bHash' => md5($address));

        if (!is_null($date)) {
            $datetime = gmdate('Y-m-d H:i:s', strtotime($date));
            $updates[] = array('bDateTime' => $datetime);
        }

        $sql = 'UPDATE '. $GLOBALS['tableprefix'] .'bookmarks SET '. $this->db->sql_build_array('UPDATE', $updates) .' WHERE bId = '. intval($bId);
        $this->db->sql_transaction('begin');

        if (!($dbresult = & $this->db->sql_query($sql))) {
            $this->db->sql_transaction('rollback');
            message_die(GENERAL_ERROR, 'Could not update bookmark', '', __LINE__, __FILE__, $sql, $this->db);
            return false;
        }

        $uriparts = explode('.', $address);
        $extension = end($uriparts);
        unset($uriparts);

        $b2tservice = SemanticScuttle_Service_Factory :: get('Bookmark2Tag');
        if (!$b2tservice->attachTags($bId, $categories, $fromApi, $extension)) {
            $this->db->sql_transaction('rollback');
            message_die(GENERAL_ERROR, 'Could not update bookmark', '', __LINE__, __FILE__, $sql, $this->db);
            return false;
        }

        $this->db->sql_transaction('commit');
        // Everything worked out, so return true.
        return true;
    }



    /**
     * Only get the bookmarks that are visible to the current user.
     * Our rules:
     * - if the $user is NULL, that means get bookmarks from ALL users,
     *   so we need to make sure to check the logged-in user's
     *   watchlist and get the contacts-only bookmarks from
     *   those users.
     *   If the user isn't logged-in, just get the public bookmarks.
     *
     * - if the $user is set and isn't the logged-in user, then get
     *   that user's bookmarks, and if that user is on the logged-in
     *   user's watchlist, get the public AND contacts-only
     *   bookmarks; otherwise, just get the public bookmarks.
     *
     * - if the $user is set and IS the logged-in user, then
     *   get all bookmarks.
     *
     * In case voting is enabled and a user is logged in,
     *  each bookmark array contains two additional keys:
     * 'hasVoted' and 'vote'.
     *
     * @param integer $start     Page number
     * @param integer $perpage   Number of bookmarks per page
     * @param integer $user      User ID
     * @param mixed   $tags      Array of tags or tags separated
     *                           by "+" signs
     * @param string  $terms     Search terms separated by spaces
     * @param string  $sortOrder One of the following values:
     *                           "date_asc", "date_desc",
     *                           "title_desc", "title_asc",
     *                           "url_desc", "url_asc"
     * @param boolean $watched   True if only watched bookmarks
     *                           shall be returned (FIXME)
     * @param integer $startdate Filter for creation date.
     *                           SQL-DateTime value
     *                           "YYYY-MM-DD hh:ii:ss'
     * @param integer $enddate   Filter for creation date.
     *                           SQL-DateTime value
     *                           "YYYY-MM-DD hh:ii:ss'
     * @param string  $hash      Filter by URL hash
     *
     * @return array Array with two keys: 'bookmarks' and 'total'.
     *               First contains an array of bookmarks, 'total'
     *               the total number of bookmarks (without paging).
     */
    public function getBookmarks(
        $start = 0, $perpage = null, $user = null, $tags = null,
        $terms = null, $sortOrder = null, $watched = null,
        $startdate = null, $enddate = null, $hash = null
    ) {
        $userservice    = SemanticScuttle_Service_Factory::get('User');
        $b2tservice     = SemanticScuttle_Service_Factory::get('Bookmark2Tag');
        $tag2tagservice = SemanticScuttle_Service_Factory::get('Tag2Tag');
        $sId            = $userservice->getCurrentUserId();

        if ($userservice->isLoggedOn()) {
            // All public bookmarks, user's own bookmarks
            // and any shared with user
            $privacy = ' AND ((B.bStatus = 0) OR (B.uId = '. $sId .')';
            $watchnames = $userservice->getWatchNames($sId, true);
            foreach ($watchnames as $watchuser) {
                $privacy .= ' OR (U.username = "'. $watchuser .'" AND B.bStatus = 1)';
            }
            $privacy .= ')';
        } else {
            // Just public bookmarks
            $privacy = ' AND B.bStatus = 0';
        }

        // Set up the tags, if need be.
        if (!is_array($tags) && !is_null($tags)) {
            $tags = explode('+', trim($tags));
        }

        $tagcount = count($tags);
        for ($i = 0; $i < $tagcount; $i ++) {
            $tags[$i] = trim($tags[$i]);
        }

        // Set up the SQL query.
        $query_1 = 'SELECT DISTINCT ';
        if (SQL_LAYER == 'mysql4') {
            $query_1 .= 'SQL_CALC_FOUND_ROWS ';
        }
        $query_1 .= 'B.*, U.'. $userservice->getFieldName('username');

        $query_2 = ' FROM '. $userservice->getTableName() .' AS U, '. $this->getTableName() .' AS B';

        $query_3 = ' WHERE B.uId = U.'. $userservice->getFieldName('primary') . $privacy;
        if (is_null($watched)) {
            if (!is_null($user)) {
                $query_3 .= ' AND B.uId = '. $user;
            }
        } else {
            $arrWatch = $userservice->getWatchlist($user);
            if (count($arrWatch) > 0) {
                $query_3_1 = '';
                foreach($arrWatch as $row) {
                    $query_3_1 .= 'B.uId = '. intval($row) .' OR ';
                }
                $query_3_1 = substr($query_3_1, 0, -3);
            } else {
                $query_3_1 = 'B.uId = -1';
            }
            $query_3 .= ' AND ('. $query_3_1 .') AND B.bStatus IN (0, 1)';
        }

        $query_5 = '';
        if($hash == null) {
            $query_5.= ' GROUP BY B.bHash';
        }


        //Voting system
        //needs to be directly after FROM bookmarks
        if ($GLOBALS['enableVoting'] && $userservice->isLoggedOn()) {
            $cuid = $userservice->getCurrentUserId();
            $vs   = SemanticScuttle_Service_Factory::get('Vote');
            $query_1 .= ', !ISNULL(V.bId) as hasVoted, V.vote as vote';
            $query_2 .= ' LEFT JOIN ' . $vs->getTableName() . ' AS V'
                . ' ON B.bId = V.bId'
                . ' AND V.uId = ' . (int)$cuid;
        }

        switch($sortOrder) {
            case 'date_asc':
                $query_5.= ' ORDER BY B.bModified ASC ';
                break;
            case 'title_desc':
                $query_5.= ' ORDER BY B.bTitle DESC ';
                break;
            case 'title_asc':
                $query_5.= ' ORDER BY B.bTitle ASC ';
                break;
            case 'url_desc':
                $query_5.= ' ORDER BY B.bAddress DESC ';
                break;
            case 'url_asc':
                $query_5.= ' ORDER BY B.bAddress ASC ';
                break;
            default:
                $query_5.= ' ORDER BY B.bModified DESC ';
        }

        // Handle the parts of the query that depend on any tags that are present.
        $query_4 = '';
        for ($i = 0; $i < $tagcount; $i ++) {
            $query_2 .= ', '. $b2tservice->getTableName() .' AS T'. $i;
            $query_4 .= ' AND (';

            $allLinkedTags = $tag2tagservice->getAllLinkedTags($this->db->sql_escape($tags[$i]), '>', $user);

            while (is_array($allLinkedTags) && count($allLinkedTags)>0) {
                $query_4 .= ' T'. $i .'.tag = "'. array_pop($allLinkedTags) .'"';
                $query_4 .= ' OR';
            }

            $query_4 .= ' T'. $i .'.tag = "'. $this->db->sql_escape($tags[$i]) .'"';

            $query_4 .= ') AND T'. $i .'.bId = B.bId';
            //die($query_4);
        }

        // Search terms
        if ($terms) {
            // Multiple search terms okay
            $aTerms = explode(' ', $terms);
            $aTerms = array_map('trim', $aTerms);

            // Search terms in tags as well when none given
            if (!count($tags)) {
                $query_2 .= ' LEFT JOIN '. $b2tservice->getTableName() .' AS T ON B.bId = T.bId';
                $dotags = true;
            } else {
                $dotags = false;
            }

            $query_4 = '';
            for ($i = 0; $i < count($aTerms); $i++) {
                $query_4 .= ' AND (B.bTitle LIKE "%'. $this->db->sql_escape($aTerms[$i]) .'%"';
                $query_4 .= ' OR B.bDescription LIKE "%'. $this->db->sql_escape($aTerms[$i]) .'%"';
                $query_4 .= ' OR B.bPrivateNote LIKE "'. $this->db->sql_escape($aTerms[$i]) .'%"'; //warning : search in private notes of everybody but private notes won't appear if not allowed.
                $query_4 .= ' OR U.username = "'. $this->db->sql_escape($aTerms[$i]) .'"'; //exact match for username
                if ($dotags) {
                    $query_4 .= ' OR T.tag LIKE "'. $this->db->sql_escape($aTerms[$i]) .'%"';
                }
                $query_4 .= ')';
            }
        }

        // Start and end dates
        if ($startdate) {
            $query_4 .= ' AND B.bDatetime > "'. $startdate .'"';
        }
        if ($enddate) {
            $query_4 .= ' AND B.bDatetime < "'. $enddate .'"';
        }

        // Hash
        if ($hash) {
            $query_4 .= ' AND B.bHash = "'. $hash .'"';
        }


        $query = $query_1 . $query_2 . $query_3 . $query_4 . $query_5;

        if (!($dbresult = & $this->db->sql_query_limit($query, intval($perpage), intval($start)))) {
            message_die(GENERAL_ERROR, 'Could not get bookmarks', '', __LINE__, __FILE__, $query, $this->db);
            return false;
        }

        if (SQL_LAYER == 'mysql4') {
            $totalquery = 'SELECT FOUND_ROWS() AS total';
        } else {
            if ($hash) {
                $totalquery = 'SELECT COUNT(*) AS total'. $query_2 . $query_3 . $query_4;
            } else {
                $totalquery = 'SELECT COUNT(DISTINCT bAddress) AS total'. $query_2 . $query_3 . $query_4;
            }
        }

        if (!($totalresult = & $this->db->sql_query($totalquery)) || (!($row = & $this->db->sql_fetchrow($totalresult)))) {
            message_die(GENERAL_ERROR, 'Could not get total bookmarks', '', __LINE__, __FILE__, $totalquery, $this->db);
            return false;
        }

        $total = $row['total'];
        $this->db->sql_freeresult($totalresult);

        $bookmarks = array();
        while ($row = & $this->db->sql_fetchrow($dbresult)) {
            $row['tags'] = $b2tservice->getTagsForBookmark(intval($row['bId']));
            $bookmarks[] = $row;
        }

        $this->db->sql_freeresult($dbresult);
        $output = array ('bookmarks' => $bookmarks, 'total' => $total);
        return $output;
    }



    /**
     * Delete the bookmark with the given id.
     * Also deletes tags and votes for the given bookmark.
     *
     * @param integer $bookmark Bookmark ID
     *
     * @return boolean True if all went well, false if not
     */
    public function deleteBookmark($bookmark)
    {
        $bookmark = (int)$bookmark;

        $query = 'DELETE FROM ' . $GLOBALS['tableprefix'] . 'bookmarks'
            . ' WHERE bId = '. $bookmark;
        $this->db->sql_transaction('begin');
        if (!($dbres = $this->db->sql_query($query))) {
            $this->db->sql_transaction('rollback');
            message_die(
                GENERAL_ERROR, 'Could not delete bookmark',
                '', __LINE__, __FILE__, $query, $this->db
            );
            return false;
        }

        $query = 'DELETE FROM ' . $GLOBALS['tableprefix'] . 'bookmarks2tags'
            . ' WHERE bId = '. $bookmark;
        $this->db->sql_transaction('begin');
        if (!($dbres = $this->db->sql_query($query))) {
            $this->db->sql_transaction('rollback');
            message_die(
                GENERAL_ERROR, 'Could not delete tags for bookmark',
                '', __LINE__, __FILE__, $query, $this->db
            );
            return false;
        }

        $query = 'DELETE FROM '. $GLOBALS['tableprefix'] .'votes'
            . ' WHERE bid = '. $bookmark;
        $this->db->sql_transaction('begin');
        if (!($dbres = $this->db->sql_query($query))) {
            $this->db->sql_transaction('rollback');
            message_die(
                GENERAL_ERROR, 'Could not delete votes for bookmark',
                '', __LINE__, __FILE__, $query, $this->db
            );
            return false;
        }

        $this->db->sql_transaction('commit');

        return true;
    }



    public function deleteBookmarksForUser($uId)
    {
        $query = 'DELETE FROM '. $GLOBALS['tableprefix'] .'bookmarks WHERE uId = '. intval($uId);

        if (!($dbresult = & $this->db->sql_query($query))) {
            message_die(GENERAL_ERROR, 'Could not delete bookmarks', '', __LINE__, __FILE__, $query, $this->db);
            return false;
        }

        return true;
    }



    function countOthers($address)
    {
        if (!$address) {
            return false;
        }

        $userservice = SemanticScuttle_Service_Factory :: get('User');
        $sId = $userservice->getCurrentUserId();

        if ($userservice->isLoggedOn()) {
            // All public bookmarks, user's own bookmarks and any shared with user
            $privacy = ' AND ((B.bStatus = 0) OR (B.uId = '. $sId .')';
            $watchnames = $userservice->getWatchNames($sId, true);
            foreach($watchnames as $watchuser) {
                $privacy .= ' OR (U.username = "'. $watchuser .'" AND B.bStatus = 1)';
            }
            $privacy .= ')';
        } else {
            // Just public bookmarks
            $privacy = ' AND B.bStatus = 0';
        }

        $sql = 'SELECT COUNT(*) FROM '. $userservice->getTableName() .' AS U, '. $GLOBALS['tableprefix'] .'bookmarks AS B WHERE U.'. $userservice->getFieldName('primary') .' = B.uId AND B.bHash = "'. md5($address) .'"'. $privacy;
        if (!($dbresult = & $this->db->sql_query($sql))) {
            message_die(GENERAL_ERROR, 'Could not get vars', '', __LINE__, __FILE__, $sql, $this->db);
        }

        $output = $this->db->sql_fetchfield(0, 0) - 1;
        $this->db->sql_freeresult($dbresult);
        return $output;
    }



    function normalize($address)
    {
        // If bookmark address doesn't contain ":", add "http://" to the start as a default protocol
        if (strpos($address, ':') === false) {
            $address = 'http://'. $address;
        }

        // Delete final /
        if (substr($address, -1) == '/') {
            $address = substr($address, 0, count($address)-2);
        }

        return $address;
    }



    /**
     * Delete all bookmarks.
     * Mainly used in unit tests.
     *
     * @return void
     */
    public function deleteAll()
    {
        $query = 'TRUNCATE TABLE `'. $this->getTableName() .'`';
        $this->db->sql_query($query);
    }

}

?>