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
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
|
<?php
/**
*
* @package phpBB3
* @copyright (c) 2005 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
namespace phpbb\auth;
/**
* Permission/Auth class
* @package phpBB3
*/
class auth
{
var $acl = array();
var $cache = array();
var $acl_options = array();
var $acl_forum_ids = false;
/**
* Init permissions
*/
function acl(&$userdata)
{
global $db, $cache;
$this->acl = $this->cache = $this->acl_options = array();
$this->acl_forum_ids = false;
if (($this->acl_options = $cache->get('_acl_options')) === false)
{
$sql = 'SELECT auth_option_id, auth_option, is_global, is_local
FROM ' . ACL_OPTIONS_TABLE . '
ORDER BY auth_option_id';
$result = $db->sql_query($sql);
$global = $local = 0;
$this->acl_options = array();
while ($row = $db->sql_fetchrow($result))
{
if ($row['is_global'])
{
$this->acl_options['global'][$row['auth_option']] = $global++;
}
if ($row['is_local'])
{
$this->acl_options['local'][$row['auth_option']] = $local++;
}
$this->acl_options['id'][$row['auth_option']] = (int) $row['auth_option_id'];
$this->acl_options['option'][(int) $row['auth_option_id']] = $row['auth_option'];
}
$db->sql_freeresult($result);
$cache->put('_acl_options', $this->acl_options);
}
if (!trim($userdata['user_permissions']))
{
$this->acl_cache($userdata);
}
// Fill ACL array
$this->_fill_acl($userdata['user_permissions']);
// Verify bitstring length with options provided...
$renew = false;
$global_length = sizeof($this->acl_options['global']);
$local_length = sizeof($this->acl_options['local']);
// Specify comparing length (bitstring is padded to 31 bits)
$global_length = ($global_length % 31) ? ($global_length - ($global_length % 31) + 31) : $global_length;
$local_length = ($local_length % 31) ? ($local_length - ($local_length % 31) + 31) : $local_length;
// You thought we are finished now? Noooo... now compare them.
foreach ($this->acl as $forum_id => $bitstring)
{
if (($forum_id && strlen($bitstring) != $local_length) || (!$forum_id && strlen($bitstring) != $global_length))
{
$renew = true;
break;
}
}
// If a bitstring within the list does not match the options, we have a user with incorrect permissions set and need to renew them
if ($renew)
{
$this->acl_cache($userdata);
$this->_fill_acl($userdata['user_permissions']);
}
return;
}
/**
* Retrieves data wanted by acl function from the database for the
* specified user.
*
* @param int $user_id User ID
* @return array User attributes
*/
public function obtain_user_data($user_id)
{
global $db;
$sql = 'SELECT user_id, username, user_permissions, user_type
FROM ' . USERS_TABLE . '
WHERE user_id = ' . $user_id;
$result = $db->sql_query($sql);
$user_data = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
return $user_data;
}
/**
* Fill ACL array with relevant bitstrings from user_permissions column
* @access private
*/
function _fill_acl($user_permissions)
{
$seq_cache = array();
$this->acl = array();
$user_permissions = explode("\n", $user_permissions);
foreach ($user_permissions as $f => $seq)
{
if ($seq)
{
$i = 0;
if (!isset($this->acl[$f]))
{
$this->acl[$f] = '';
}
while ($subseq = substr($seq, $i, 6))
{
if (isset($seq_cache[$subseq]))
{
$converted = $seq_cache[$subseq];
}
else
{
$converted = $seq_cache[$subseq] = str_pad(base_convert($subseq, 36, 2), 31, 0, STR_PAD_LEFT);
}
// We put the original bitstring into the acl array
$this->acl[$f] .= $converted;
$i += 6;
}
}
}
}
/**
* Look up an option
* if the option is prefixed with !, then the result becomes negated
*
* If a forum id is specified the local option will be combined with a global option if one exist.
* If a forum id is not specified, only the global option will be checked.
*/
function acl_get($opt, $f = 0)
{
$negate = false;
if (strpos($opt, '!') === 0)
{
$negate = true;
$opt = substr($opt, 1);
}
if (!isset($this->cache[$f][$opt]))
{
// We combine the global/local option with an OR because some options are global and local.
// If the user has the global permission the local one is true too and vice versa
$this->cache[$f][$opt] = false;
// Is this option a global permission setting?
if (isset($this->acl_options['global'][$opt]))
{
if (isset($this->acl[0]))
{
$this->cache[$f][$opt] = $this->acl[0][$this->acl_options['global'][$opt]];
}
}
// Is this option a local permission setting?
// But if we check for a global option only, we won't combine the options...
if ($f != 0 && isset($this->acl_options['local'][$opt]))
{
if (isset($this->acl[$f]) && isset($this->acl[$f][$this->acl_options['local'][$opt]]))
{
$this->cache[$f][$opt] |= $this->acl[$f][$this->acl_options['local'][$opt]];
}
}
}
// Founder always has all global options set to true...
return ($negate) ? !$this->cache[$f][$opt] : $this->cache[$f][$opt];
}
/**
* Get forums with the specified permission setting
* if the option is prefixed with !, then the result becomes negated
*
* @param bool $clean set to true if only values needs to be returned which are set/unset
*/
function acl_getf($opt, $clean = false)
{
$acl_f = array();
$negate = false;
if (strpos($opt, '!') === 0)
{
$negate = true;
$opt = substr($opt, 1);
}
// If we retrieve a list of forums not having permissions in, we need to get every forum_id
if ($negate)
{
if ($this->acl_forum_ids === false)
{
global $db;
$sql = 'SELECT forum_id
FROM ' . FORUMS_TABLE;
if (sizeof($this->acl))
{
$sql .= ' WHERE ' . $db->sql_in_set('forum_id', array_keys($this->acl), true);
}
$result = $db->sql_query($sql);
$this->acl_forum_ids = array();
while ($row = $db->sql_fetchrow($result))
{
$this->acl_forum_ids[] = $row['forum_id'];
}
$db->sql_freeresult($result);
}
}
if (isset($this->acl_options['local'][$opt]))
{
foreach ($this->acl as $f => $bitstring)
{
// Skip global settings
if (!$f)
{
continue;
}
$allowed = (!isset($this->cache[$f][$opt])) ? $this->acl_get($opt, $f) : $this->cache[$f][$opt];
if (!$clean)
{
$acl_f[$f][$opt] = ($negate) ? !$allowed : $allowed;
}
else
{
if (($negate && !$allowed) || (!$negate && $allowed))
{
$acl_f[$f][$opt] = 1;
}
}
}
}
// If we get forum_ids not having this permission, we need to fill the remaining parts
if ($negate && sizeof($this->acl_forum_ids))
{
foreach ($this->acl_forum_ids as $f)
{
$acl_f[$f][$opt] = 1;
}
}
return $acl_f;
}
/**
* Get local permission state for any forum.
*
* Returns true if user has the permission in one or more forums, false if in no forum.
* If global option is checked it returns the global state (same as acl_get($opt))
* Local option has precedence...
*/
function acl_getf_global($opt)
{
if (is_array($opt))
{
// evaluates to true as soon as acl_getf_global is true for one option
foreach ($opt as $check_option)
{
if ($this->acl_getf_global($check_option))
{
return true;
}
}
return false;
}
if (isset($this->acl_options['local'][$opt]))
{
foreach ($this->acl as $f => $bitstring)
{
// Skip global settings
if (!$f)
{
continue;
}
// as soon as the user has any permission we're done so return true
if ((!isset($this->cache[$f][$opt])) ? $this->acl_get($opt, $f) : $this->cache[$f][$opt])
{
return true;
}
}
}
else if (isset($this->acl_options['global'][$opt]))
{
return $this->acl_get($opt);
}
return false;
}
/**
* Get permission settings (more than one)
*/
function acl_gets()
{
$args = func_get_args();
$f = array_pop($args);
if (!is_numeric($f))
{
$args[] = $f;
$f = 0;
}
// alternate syntax: acl_gets(array('m_', 'a_'), $forum_id)
if (is_array($args[0]))
{
$args = $args[0];
}
$acl = 0;
foreach ($args as $opt)
{
$acl |= $this->acl_get($opt, $f);
}
return $acl;
}
/**
* Get permission listing based on user_id/options/forum_ids
*
* Be careful when using this function with permissions a_, m_, u_ and f_ !
* It may not work correctly. When a user group grants an a_* permission,
* e.g. a_foo, but the user's a_foo permission is set to "Never", then
* the user does not in fact have the a_ permission.
* But the user will still be listed as having the a_ permission.
*
* For more information see: http://tracker.phpbb.com/browse/PHPBB3-10252
*/
function acl_get_list($user_id = false, $opts = false, $forum_id = false)
{
if ($user_id !== false && !is_array($user_id) && $opts === false && $forum_id === false)
{
$hold_ary = array($user_id => $this->acl_raw_data_single_user($user_id));
}
else
{
$hold_ary = $this->acl_raw_data($user_id, $opts, $forum_id);
}
$auth_ary = array();
foreach ($hold_ary as $user_id => $forum_ary)
{
foreach ($forum_ary as $forum_id => $auth_option_ary)
{
foreach ($auth_option_ary as $auth_option => $auth_setting)
{
if ($auth_setting)
{
$auth_ary[$forum_id][$auth_option][] = $user_id;
}
}
}
}
return $auth_ary;
}
/**
* Cache data to user_permissions row
*/
function acl_cache(&$userdata)
{
global $db;
// Empty user_permissions
$userdata['user_permissions'] = '';
$hold_ary = $this->acl_raw_data_single_user($userdata['user_id']);
// Key 0 in $hold_ary are global options, all others are forum_ids
// If this user is founder we're going to force fill the admin options ...
if ($userdata['user_type'] == USER_FOUNDER)
{
foreach ($this->acl_options['global'] as $opt => $id)
{
if (strpos($opt, 'a_') === 0)
{
$hold_ary[0][$this->acl_options['id'][$opt]] = ACL_YES;
}
}
}
$hold_str = $this->build_bitstring($hold_ary);
if ($hold_str)
{
$userdata['user_permissions'] = $hold_str;
$sql = 'UPDATE ' . USERS_TABLE . "
SET user_permissions = '" . $db->sql_escape($userdata['user_permissions']) . "',
user_perm_from = 0
WHERE user_id = " . $userdata['user_id'];
$db->sql_query($sql);
}
return;
}
/**
* Build bitstring from permission set
*/
function build_bitstring(&$hold_ary)
{
$hold_str = '';
if (sizeof($hold_ary))
{
ksort($hold_ary);
$last_f = 0;
foreach ($hold_ary as $f => $auth_ary)
{
$ary_key = (!$f) ? 'global' : 'local';
$bitstring = array();
foreach ($this->acl_options[$ary_key] as $opt => $id)
{
if (isset($auth_ary[$this->acl_options['id'][$opt]]))
{
$bitstring[$id] = $auth_ary[$this->acl_options['id'][$opt]];
$option_key = substr($opt, 0, strpos($opt, '_') + 1);
// If one option is allowed, the global permission for this option has to be allowed too
// example: if the user has the a_ permission this means he has one or more a_* permissions
if ($auth_ary[$this->acl_options['id'][$opt]] == ACL_YES && (!isset($bitstring[$this->acl_options[$ary_key][$option_key]]) || $bitstring[$this->acl_options[$ary_key][$option_key]] == ACL_NEVER))
{
$bitstring[$this->acl_options[$ary_key][$option_key]] = ACL_YES;
}
}
else
{
$bitstring[$id] = ACL_NEVER;
}
}
// Now this bitstring defines the permission setting for the current forum $f (or global setting)
$bitstring = implode('', $bitstring);
// The line number indicates the id, therefore we have to add empty lines for those ids not present
$hold_str .= str_repeat("\n", $f - $last_f);
// Convert bitstring for storage - we do not use binary/bytes because PHP's string functions are not fully binary safe
for ($i = 0, $bit_length = strlen($bitstring); $i < $bit_length; $i += 31)
{
$hold_str .= str_pad(base_convert(str_pad(substr($bitstring, $i, 31), 31, 0, STR_PAD_RIGHT), 2, 36), 6, 0, STR_PAD_LEFT);
}
$last_f = $f;
}
unset($bitstring);
$hold_str = rtrim($hold_str);
}
return $hold_str;
}
/**
* Clear one or all users cached permission settings
*/
function acl_clear_prefetch($user_id = false)
{
global $db, $cache;
// Rebuild options cache
$cache->destroy('_role_cache');
$sql = 'SELECT *
FROM ' . ACL_ROLES_DATA_TABLE . '
ORDER BY role_id ASC';
$result = $db->sql_query($sql);
$this->role_cache = array();
while ($row = $db->sql_fetchrow($result))
{
$this->role_cache[$row['role_id']][$row['auth_option_id']] = (int) $row['auth_setting'];
}
$db->sql_freeresult($result);
foreach ($this->role_cache as $role_id => $role_options)
{
$this->role_cache[$role_id] = serialize($role_options);
}
$cache->put('_role_cache', $this->role_cache);
// Now empty user permissions
$where_sql = '';
if ($user_id !== false)
{
$user_id = (!is_array($user_id)) ? $user_id = array((int) $user_id) : array_map('intval', $user_id);
$where_sql = ' WHERE ' . $db->sql_in_set('user_id', $user_id);
}
$sql = 'UPDATE ' . USERS_TABLE . "
SET user_permissions = '',
user_perm_from = 0
$where_sql";
$db->sql_query($sql);
return;
}
/**
* Get assigned roles
*/
function acl_role_data($user_type, $role_type, $ug_id = false, $forum_id = false)
{
global $db;
$roles = array();
$sql_id = ($user_type == 'user') ? 'user_id' : 'group_id';
$sql_ug = ($ug_id !== false) ? ((!is_array($ug_id)) ? "AND a.$sql_id = $ug_id" : 'AND ' . $db->sql_in_set("a.$sql_id", $ug_id)) : '';
$sql_forum = ($forum_id !== false) ? ((!is_array($forum_id)) ? "AND a.forum_id = $forum_id" : 'AND ' . $db->sql_in_set('a.forum_id', $forum_id)) : '';
// Grab assigned roles...
$sql = 'SELECT a.auth_role_id, a.' . $sql_id . ', a.forum_id
FROM ' . (($user_type == 'user') ? ACL_USERS_TABLE : ACL_GROUPS_TABLE) . ' a, ' . ACL_ROLES_TABLE . " r
WHERE a.auth_role_id = r.role_id
AND r.role_type = '" . $db->sql_escape($role_type) . "'
$sql_ug
$sql_forum
ORDER BY r.role_order ASC";
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$roles[$row[$sql_id]][$row['forum_id']] = $row['auth_role_id'];
}
$db->sql_freeresult($result);
return $roles;
}
/**
* Get raw acl data based on user/option/forum
*/
function acl_raw_data($user_id = false, $opts = false, $forum_id = false)
{
global $db;
$sql_user = ($user_id !== false) ? ((!is_array($user_id)) ? 'user_id = ' . (int) $user_id : $db->sql_in_set('user_id', array_map('intval', $user_id))) : '';
$sql_forum = ($forum_id !== false) ? ((!is_array($forum_id)) ? 'AND a.forum_id = ' . (int) $forum_id : 'AND ' . $db->sql_in_set('a.forum_id', array_map('intval', $forum_id))) : '';
$sql_opts = $sql_opts_select = $sql_opts_from = '';
$hold_ary = array();
if ($opts !== false)
{
$sql_opts_select = ', ao.auth_option';
$sql_opts_from = ', ' . ACL_OPTIONS_TABLE . ' ao';
$this->build_auth_option_statement('ao.auth_option', $opts, $sql_opts);
}
$sql_ary = array();
// Grab non-role settings - user-specific
$sql_ary[] = 'SELECT a.user_id, a.forum_id, a.auth_setting, a.auth_option_id' . $sql_opts_select . '
FROM ' . ACL_USERS_TABLE . ' a' . $sql_opts_from . '
WHERE a.auth_role_id = 0 ' .
(($sql_opts_from) ? 'AND a.auth_option_id = ao.auth_option_id ' : '') .
(($sql_user) ? 'AND a.' . $sql_user : '') . "
$sql_forum
$sql_opts";
// Now the role settings - user-specific
$sql_ary[] = 'SELECT a.user_id, a.forum_id, r.auth_option_id, r.auth_setting, r.auth_option_id' . $sql_opts_select . '
FROM ' . ACL_USERS_TABLE . ' a, ' . ACL_ROLES_DATA_TABLE . ' r' . $sql_opts_from . '
WHERE a.auth_role_id = r.role_id ' .
(($sql_opts_from) ? 'AND r.auth_option_id = ao.auth_option_id ' : '') .
(($sql_user) ? 'AND a.' . $sql_user : '') . "
$sql_forum
$sql_opts";
foreach ($sql_ary as $sql)
{
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$option = ($sql_opts_select) ? $row['auth_option'] : $this->acl_options['option'][$row['auth_option_id']];
$hold_ary[$row['user_id']][$row['forum_id']][$option] = $row['auth_setting'];
}
$db->sql_freeresult($result);
}
$sql_ary = array();
// Now grab group settings - non-role specific...
$sql_ary[] = 'SELECT ug.user_id, a.forum_id, a.auth_setting, a.auth_option_id' . $sql_opts_select . '
FROM ' . ACL_GROUPS_TABLE . ' a, ' . USER_GROUP_TABLE . ' ug, ' . GROUPS_TABLE . ' g' . $sql_opts_from . '
WHERE a.auth_role_id = 0 ' .
(($sql_opts_from) ? 'AND a.auth_option_id = ao.auth_option_id ' : '') . '
AND a.group_id = ug.group_id
AND g.group_id = ug.group_id
AND ug.user_pending = 0
AND NOT (ug.group_leader = 1 AND g.group_skip_auth = 1)
' . (($sql_user) ? 'AND ug.' . $sql_user : '') . "
$sql_forum
$sql_opts";
// Now grab group settings - role specific...
$sql_ary[] = 'SELECT ug.user_id, a.forum_id, r.auth_setting, r.auth_option_id' . $sql_opts_select . '
FROM ' . ACL_GROUPS_TABLE . ' a, ' . USER_GROUP_TABLE . ' ug, ' . GROUPS_TABLE . ' g, ' . ACL_ROLES_DATA_TABLE . ' r' . $sql_opts_from . '
WHERE a.auth_role_id = r.role_id ' .
(($sql_opts_from) ? 'AND r.auth_option_id = ao.auth_option_id ' : '') . '
AND a.group_id = ug.group_id
AND g.group_id = ug.group_id
AND ug.user_pending = 0
AND NOT (ug.group_leader = 1 AND g.group_skip_auth = 1)
' . (($sql_user) ? 'AND ug.' . $sql_user : '') . "
$sql_forum
$sql_opts";
foreach ($sql_ary as $sql)
{
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$option = ($sql_opts_select) ? $row['auth_option'] : $this->acl_options['option'][$row['auth_option_id']];
if (!isset($hold_ary[$row['user_id']][$row['forum_id']][$option]) || (isset($hold_ary[$row['user_id']][$row['forum_id']][$option]) && $hold_ary[$row['user_id']][$row['forum_id']][$option] != ACL_NEVER))
{
$hold_ary[$row['user_id']][$row['forum_id']][$option] = $row['auth_setting'];
// If we detect ACL_NEVER, we will unset the flag option (within building the bitstring it is correctly set again)
if ($row['auth_setting'] == ACL_NEVER)
{
$flag = substr($option, 0, strpos($option, '_') + 1);
if (isset($hold_ary[$row['user_id']][$row['forum_id']][$flag]) && $hold_ary[$row['user_id']][$row['forum_id']][$flag] == ACL_YES)
{
unset($hold_ary[$row['user_id']][$row['forum_id']][$flag]);
/* if (in_array(ACL_YES, $hold_ary[$row['user_id']][$row['forum_id']]))
{
$hold_ary[$row['user_id']][$row['forum_id']][$flag] = ACL_YES;
}
*/
}
}
}
}
$db->sql_freeresult($result);
}
return $hold_ary;
}
/**
* Get raw user based permission settings
*/
function acl_user_raw_data($user_id = false, $opts = false, $forum_id = false)
{
global $db;
$sql_user = ($user_id !== false) ? ((!is_array($user_id)) ? 'user_id = ' . (int) $user_id : $db->sql_in_set('user_id', array_map('intval', $user_id))) : '';
$sql_forum = ($forum_id !== false) ? ((!is_array($forum_id)) ? 'AND a.forum_id = ' . (int) $forum_id : 'AND ' . $db->sql_in_set('a.forum_id', array_map('intval', $forum_id))) : '';
$sql_opts = '';
$hold_ary = $sql_ary = array();
if ($opts !== false)
{
$this->build_auth_option_statement('ao.auth_option', $opts, $sql_opts);
}
// Grab user settings - non-role specific...
$sql_ary[] = 'SELECT a.user_id, a.forum_id, a.auth_setting, a.auth_option_id, ao.auth_option
FROM ' . ACL_USERS_TABLE . ' a, ' . ACL_OPTIONS_TABLE . ' ao
WHERE a.auth_role_id = 0
AND a.auth_option_id = ao.auth_option_id ' .
(($sql_user) ? 'AND a.' . $sql_user : '') . "
$sql_forum
$sql_opts
ORDER BY a.forum_id, ao.auth_option";
// Now the role settings - user-specific
$sql_ary[] = 'SELECT a.user_id, a.forum_id, r.auth_option_id, r.auth_setting, r.auth_option_id, ao.auth_option
FROM ' . ACL_USERS_TABLE . ' a, ' . ACL_ROLES_DATA_TABLE . ' r, ' . ACL_OPTIONS_TABLE . ' ao
WHERE a.auth_role_id = r.role_id
AND r.auth_option_id = ao.auth_option_id ' .
(($sql_user) ? 'AND a.' . $sql_user : '') . "
$sql_forum
$sql_opts
ORDER BY a.forum_id, ao.auth_option";
foreach ($sql_ary as $sql)
{
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$hold_ary[$row['user_id']][$row['forum_id']][$row['auth_option']] = $row['auth_setting'];
}
$db->sql_freeresult($result);
}
return $hold_ary;
}
/**
* Get raw group based permission settings
*/
function acl_group_raw_data($group_id = false, $opts = false, $forum_id = false)
{
global $db;
$sql_group = ($group_id !== false) ? ((!is_array($group_id)) ? 'group_id = ' . (int) $group_id : $db->sql_in_set('group_id', array_map('intval', $group_id))) : '';
$sql_forum = ($forum_id !== false) ? ((!is_array($forum_id)) ? 'AND a.forum_id = ' . (int) $forum_id : 'AND ' . $db->sql_in_set('a.forum_id', array_map('intval', $forum_id))) : '';
$sql_opts = '';
$hold_ary = $sql_ary = array();
if ($opts !== false)
{
$this->build_auth_option_statement('ao.auth_option', $opts, $sql_opts);
}
// Grab group settings - non-role specific...
$sql_ary[] = 'SELECT a.group_id, a.forum_id, a.auth_setting, a.auth_option_id, ao.auth_option
FROM ' . ACL_GROUPS_TABLE . ' a, ' . ACL_OPTIONS_TABLE . ' ao
WHERE a.auth_role_id = 0
AND a.auth_option_id = ao.auth_option_id ' .
(($sql_group) ? 'AND a.' . $sql_group : '') . "
$sql_forum
$sql_opts
ORDER BY a.forum_id, ao.auth_option";
// Now grab group settings - role specific...
$sql_ary[] = 'SELECT a.group_id, a.forum_id, r.auth_setting, r.auth_option_id, ao.auth_option
FROM ' . ACL_GROUPS_TABLE . ' a, ' . ACL_ROLES_DATA_TABLE . ' r, ' . ACL_OPTIONS_TABLE . ' ao
WHERE a.auth_role_id = r.role_id
AND r.auth_option_id = ao.auth_option_id ' .
(($sql_group) ? 'AND a.' . $sql_group : '') . "
$sql_forum
$sql_opts
ORDER BY a.forum_id, ao.auth_option";
foreach ($sql_ary as $sql)
{
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$hold_ary[$row['group_id']][$row['forum_id']][$row['auth_option']] = $row['auth_setting'];
}
$db->sql_freeresult($result);
}
return $hold_ary;
}
/**
* Get raw acl data based on user for caching user_permissions
* This function returns the same data as acl_raw_data(), but without the user id as the first key within the array.
*/
function acl_raw_data_single_user($user_id)
{
global $db, $cache;
// Check if the role-cache is there
if (($this->role_cache = $cache->get('_role_cache')) === false)
{
$this->role_cache = array();
// We pre-fetch roles
$sql = 'SELECT *
FROM ' . ACL_ROLES_DATA_TABLE . '
ORDER BY role_id ASC';
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
$this->role_cache[$row['role_id']][$row['auth_option_id']] = (int) $row['auth_setting'];
}
$db->sql_freeresult($result);
foreach ($this->role_cache as $role_id => $role_options)
{
$this->role_cache[$role_id] = serialize($role_options);
}
$cache->put('_role_cache', $this->role_cache);
}
$hold_ary = array();
// Grab user-specific permission settings
$sql = 'SELECT forum_id, auth_option_id, auth_role_id, auth_setting
FROM ' . ACL_USERS_TABLE . '
WHERE user_id = ' . $user_id;
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
// If a role is assigned, assign all options included within this role. Else, only set this one option.
if ($row['auth_role_id'])
{
$hold_ary[$row['forum_id']] = (empty($hold_ary[$row['forum_id']])) ? unserialize($this->role_cache[$row['auth_role_id']]) : $hold_ary[$row['forum_id']] + unserialize($this->role_cache[$row['auth_role_id']]);
}
else
{
$hold_ary[$row['forum_id']][$row['auth_option_id']] = $row['auth_setting'];
}
}
$db->sql_freeresult($result);
// Now grab group-specific permission settings
$sql = 'SELECT a.forum_id, a.auth_option_id, a.auth_role_id, a.auth_setting
FROM ' . ACL_GROUPS_TABLE . ' a, ' . USER_GROUP_TABLE . ' ug, ' . GROUPS_TABLE . ' g
WHERE a.group_id = ug.group_id
AND g.group_id = ug.group_id
AND ug.user_pending = 0
AND NOT (ug.group_leader = 1 AND g.group_skip_auth = 1)
AND ug.user_id = ' . $user_id;
$result = $db->sql_query($sql);
while ($row = $db->sql_fetchrow($result))
{
if (!$row['auth_role_id'])
{
$this->_set_group_hold_ary($hold_ary[$row['forum_id']], $row['auth_option_id'], $row['auth_setting']);
}
else if (!empty($this->role_cache[$row['auth_role_id']]))
{
foreach (unserialize($this->role_cache[$row['auth_role_id']]) as $option_id => $setting)
{
$this->_set_group_hold_ary($hold_ary[$row['forum_id']], $option_id, $setting);
}
}
}
$db->sql_freeresult($result);
return $hold_ary;
}
/**
* Private function snippet for setting a specific piece of the hold_ary
*/
function _set_group_hold_ary(&$hold_ary, $option_id, $setting)
{
if (!isset($hold_ary[$option_id]) || (isset($hold_ary[$option_id]) && $hold_ary[$option_id] != ACL_NEVER))
{
$hold_ary[$option_id] = $setting;
// If we detect ACL_NEVER, we will unset the flag option (within building the bitstring it is correctly set again)
if ($setting == ACL_NEVER)
{
$flag = substr($this->acl_options['option'][$option_id], 0, strpos($this->acl_options['option'][$option_id], '_') + 1);
$flag = (int) $this->acl_options['id'][$flag];
if (isset($hold_ary[$flag]) && $hold_ary[$flag] == ACL_YES)
{
unset($hold_ary[$flag]);
/* This is uncommented, because i suspect this being slightly wrong due to mixed permission classes being possible
if (in_array(ACL_YES, $hold_ary))
{
$hold_ary[$flag] = ACL_YES;
}*/
}
}
}
}
/**
* Authentication plug-ins is largely down to Sergey Kanareykin, our thanks to him.
*/
function login($username, $password, $autologin = false, $viewonline = 1, $admin = 0)
{
global $config, $db, $user, $phpbb_root_path, $phpEx, $phpbb_container;
$method = trim(basename($config['auth_method']));
$provider = $phpbb_container->get('auth.provider.' . $method);
if ($provider)
{
$login = $provider->login($username, $password);
// If the auth module wants us to create an empty profile do so and then treat the status as LOGIN_SUCCESS
if ($login['status'] == LOGIN_SUCCESS_CREATE_PROFILE)
{
// we are going to use the user_add function so include functions_user.php if it wasn't defined yet
if (!function_exists('user_add'))
{
include($phpbb_root_path . 'includes/functions_user.' . $phpEx);
}
user_add($login['user_row'], (isset($login['cp_data'])) ? $login['cp_data'] : false);
$sql = 'SELECT user_id, username, user_password, user_passchg, user_email, user_type
FROM ' . USERS_TABLE . "
WHERE username_clean = '" . $db->sql_escape(utf8_clean_string($username)) . "'";
$result = $db->sql_query($sql);
$row = $db->sql_fetchrow($result);
$db->sql_freeresult($result);
if (!$row)
{
return array(
'status' => LOGIN_ERROR_EXTERNAL_AUTH,
'error_msg' => 'AUTH_NO_PROFILE_CREATED',
'user_row' => array('user_id' => ANONYMOUS),
);
}
$login = array(
'status' => LOGIN_SUCCESS,
'error_msg' => false,
'user_row' => $row,
);
}
// If the auth provider wants us to link an empty account do so and redirect
if ($login['status'] == LOGIN_SUCCESS_LINK_PROFILE)
{
// If this status exists a fourth field is in the $login array called 'redirect_data'
// This data is passed along as GET data to the next page allow the account to be linked
$params = array('mode' => 'login_link');
$url = append_sid($phpbb_root_path . 'ucp.' . $phpEx, array_merge($params, $login['redirect_data']));
redirect($url);
}
// If login succeeded, we will log the user in... else we pass the login array through...
if ($login['status'] == LOGIN_SUCCESS)
{
$old_session_id = $user->session_id;
if ($admin)
{
global $SID, $_SID;
$cookie_expire = time() - 31536000;
$user->set_cookie('u', '', $cookie_expire);
$user->set_cookie('sid', '', $cookie_expire);
unset($cookie_expire);
$SID = '?sid=';
$user->session_id = $_SID = '';
}
$result = $user->session_create($login['user_row']['user_id'], $admin, $autologin, $viewonline);
// Successful session creation
if ($result === true)
{
// If admin re-authentication we remove the old session entry because a new one has been created...
if ($admin)
{
// the login array is used because the user ids do not differ for re-authentication
$sql = 'DELETE FROM ' . SESSIONS_TABLE . "
WHERE session_id = '" . $db->sql_escape($old_session_id) . "'
AND session_user_id = {$login['user_row']['user_id']}";
$db->sql_query($sql);
}
return array(
'status' => LOGIN_SUCCESS,
'error_msg' => false,
'user_row' => $login['user_row'],
);
}
return array(
'status' => LOGIN_BREAK,
'error_msg' => $result,
'user_row' => $login['user_row'],
);
}
return $login;
}
trigger_error('Authentication method not found', E_USER_ERROR);
}
/**
* Fill auth_option statement for later querying based on the supplied options
*/
function build_auth_option_statement($key, $auth_options, &$sql_opts)
{
global $db;
if (!is_array($auth_options))
{
if (strpos($auth_options, '%') !== false)
{
$sql_opts = "AND $key " . $db->sql_like_expression(str_replace('%', $db->any_char, $auth_options));
}
else
{
$sql_opts = "AND $key = '" . $db->sql_escape($auth_options) . "'";
}
}
else
{
$is_like_expression = false;
foreach ($auth_options as $option)
{
if (strpos($option, '%') !== false)
{
$is_like_expression = true;
}
}
if (!$is_like_expression)
{
$sql_opts = 'AND ' . $db->sql_in_set($key, $auth_options);
}
else
{
$sql = array();
foreach ($auth_options as $option)
{
if (strpos($option, '%') !== false)
{
$sql[] = $key . ' ' . $db->sql_like_expression(str_replace('%', $db->any_char, $option));
}
else
{
$sql[] = $key . " = '" . $db->sql_escape($option) . "'";
}
}
$sql_opts = 'AND (' . implode(' OR ', $sql) . ')';
}
}
}
}
|
