Verzeichnisstruktur phpBB-3.0.0
- Veröffentlicht
- 12.12.2007
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auth.php
001 <?php
002 /**
003 *
004 * @package phpBB3
005 * @version $Id$
006 * @copyright (c) 2005 phpBB Group
007 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
008 *
009 */
010
011 /**
012 * @ignore
013 */
014 if (!defined('IN_PHPBB'))
015 {
016 exit;
017 }
018
019 /**
020 * Permission/Auth class
021 * @package phpBB3
022 */
023 class auth
024 {
025 var $acl = array();
026 var $cache = array();
027 var $acl_options = array();
028 var $acl_forum_ids = false;
029
030 /**
031 * Init permissions
032 */
033 function acl(&$userdata)
034 {
035 global $db, $cache;
036
037 $this->acl = $this->cache = $this->acl_options = array();
038 $this->acl_forum_ids = false;
039
040 if (($this->acl_options = $cache->get('_acl_options')) === false)
041 {
042 $sql = 'SELECT auth_option, is_global, is_local
043 FROM ' . ACL_OPTIONS_TABLE . '
044 ORDER BY auth_option_id';
045 $result = $db->sql_query($sql);
046
047 $global = $local = 0;
048 $this->acl_options = array();
049 while ($row = $db->sql_fetchrow($result))
050 {
051 if ($row['is_global'])
052 {
053 $this->acl_options['global'][$row['auth_option']] = $global++;
054 }
055
056 if ($row['is_local'])
057 {
058 $this->acl_options['local'][$row['auth_option']] = $local++;
059 }
060 }
061 $db->sql_freeresult($result);
062
063 $cache->put('_acl_options', $this->acl_options);
064 $this->acl_cache($userdata);
065 }
066 else if (!trim($userdata['user_permissions']))
067 {
068 $this->acl_cache($userdata);
069 }
070
071 $user_permissions = explode("\n", $userdata['user_permissions']);
072
073 foreach ($user_permissions as $f => $seq)
074 {
075 if ($seq)
076 {
077 $i = 0;
078
079 if (!isset($this->acl[$f]))
080 {
081 $this->acl[$f] = '';
082 }
083
084 while ($subseq = substr($seq, $i, 6))
085 {
086 // We put the original bitstring into the acl array
087 $this->acl[$f] .= str_pad(base_convert($subseq, 36, 2), 31, 0, STR_PAD_LEFT);
088 $i += 6;
089 }
090 }
091 }
092
093 return;
094 }
095
096 /**
097 * Look up an option
098 * if the option is prefixed with !, then the result becomes negated
099 *
100 * If a forum id is specified the local option will be combined with a global option if one exist.
101 * If a forum id is not specified, only the global option will be checked.
102 */
103 function acl_get($opt, $f = 0)
104 {
105 $negate = false;
106
107 if (strpos($opt, '!') === 0)
108 {
109 $negate = true;
110 $opt = substr($opt, 1);
111 }
112
113 if (!isset($this->cache[$f][$opt]))
114 {
115 // We combine the global/local option with an OR because some options are global and local.
116 // If the user has the global permission the local one is true too and vice versa
117 $this->cache[$f][$opt] = false;
118
119 // Is this option a global permission setting?
120 if (isset($this->acl_options['global'][$opt]))
121 {
122 if (isset($this->acl[0]))
123 {
124 $this->cache[$f][$opt] = $this->acl[0][$this->acl_options['global'][$opt]];
125 }
126 }
127
128 // Is this option a local permission setting?
129 // But if we check for a global option only, we won't combine the options...
130 if ($f != 0 && isset($this->acl_options['local'][$opt]))
131 {
132 if (isset($this->acl[$f]) && isset($this->acl[$f][$this->acl_options['local'][$opt]]))
133 {
134 $this->cache[$f][$opt] |= $this->acl[$f][$this->acl_options['local'][$opt]];
135 }
136 }
137 }
138
139 // Founder always has all global options set to true...
140 return ($negate) ? !$this->cache[$f][$opt] : $this->cache[$f][$opt];
141 }
142
143 /**
144 * Get forums with the specified permission setting
145 * if the option is prefixed with !, then the result becomes nagated
146 *
147 * @param bool $clean set to true if only values needs to be returned which are set/unset
148 */
149 function acl_getf($opt, $clean = false)
150 {
151 $acl_f = array();
152 $negate = false;
153
154 if (strpos($opt, '!') === 0)
155 {
156 $negate = true;
157 $opt = substr($opt, 1);
158 }
159
160 // If we retrieve a list of forums not having permissions in, we need to get every forum_id
161 if ($negate)
162 {
163 if ($this->acl_forum_ids === false)
164 {
165 global $db;
166
167 $sql = 'SELECT forum_id
168 FROM ' . FORUMS_TABLE;
169
170 if (sizeof($this->acl))
171 {
172 $sql .= ' WHERE ' . $db->sql_in_set('forum_id', array_keys($this->acl), true);
173 }
174 $result = $db->sql_query($sql);
175
176 $this->acl_forum_ids = array();
177 while ($row = $db->sql_fetchrow($result))
178 {
179 $this->acl_forum_ids[] = $row['forum_id'];
180 }
181 $db->sql_freeresult($result);
182 }
183 }
184
185 if (isset($this->acl_options['local'][$opt]))
186 {
187 foreach ($this->acl as $f => $bitstring)
188 {
189 // Skip global settings
190 if (!$f)
191 {
192 continue;
193 }
194
195 $allowed = (!isset($this->cache[$f][$opt])) ? $this->acl_get($opt, $f) : $this->cache[$f][$opt];
196
197 if (!$clean)
198 {
199 $acl_f[$f][$opt] = ($negate) ? !$allowed : $allowed;
200 }
201 else
202 {
203 if (($negate && !$allowed) || (!$negate && $allowed))
204 {
205 $acl_f[$f][$opt] = 1;
206 }
207 }
208 }
209 }
210
211 // If we get forum_ids not having this permission, we need to fill the remaining parts
212 if ($negate && sizeof($this->acl_forum_ids))
213 {
214 foreach ($this->acl_forum_ids as $f)
215 {
216 $acl_f[$f][$opt] = 1;
217 }
218 }
219
220 return $acl_f;
221 }
222
223 /**
224 * Get local permission state for any forum.
225 *
226 * Returns true if user has the permission in one or more forums, false if in no forum.
227 * If global option is checked it returns the global state (same as acl_get($opt))
228 * Local option has precedence...
229 */
230 function acl_getf_global($opt)
231 {
232 if (is_array($opt))
233 {
234 // evaluates to true as soon as acl_getf_global is true for one option
235 foreach ($opt as $check_option)
236 {
237 if ($this->acl_getf_global($check_option))
238 {
239 return true;
240 }
241 }
242
243 return false;
244 }
245
246 if (isset($this->acl_options['local'][$opt]))
247 {
248 foreach ($this->acl as $f => $bitstring)
249 {
250 // Skip global settings
251 if (!$f)
252 {
253 continue;
254 }
255
256 // as soon as the user has any permission we're done so return true
257 if ((!isset($this->cache[$f][$opt])) ? $this->acl_get($opt, $f) : $this->cache[$f][$opt])
258 {
259 return true;
260 }
261 }
262 }
263 else if (isset($this->acl_options['global'][$opt]))
264 {
265 return $this->acl_get($opt);
266 }
267
268 return false;
269 }
270
271 /**
272 * Get permission settings (more than one)
273 */
274 function acl_gets()
275 {
276 $args = func_get_args();
277 $f = array_pop($args);
278
279 if (!is_numeric($f))
280 {
281 $args[] = $f;
282 $f = 0;
283 }
284
285 // alternate syntax: acl_gets(array('m_', 'a_'), $forum_id)
286 if (is_array($args[0]))
287 {
288 $args = $args[0];
289 }
290
291 $acl = 0;
292 foreach ($args as $opt)
293 {
294 $acl |= $this->acl_get($opt, $f);
295 }
296
297 return $acl;
298 }
299
300 /**
301 * Get permission listing based on user_id/options/forum_ids
302 */
303 function acl_get_list($user_id = false, $opts = false, $forum_id = false)
304 {
305 $hold_ary = $this->acl_raw_data($user_id, $opts, $forum_id);
306
307 $auth_ary = array();
308 foreach ($hold_ary as $user_id => $forum_ary)
309 {
310 foreach ($forum_ary as $forum_id => $auth_option_ary)
311 {
312 foreach ($auth_option_ary as $auth_option => $auth_setting)
313 {
314 if ($auth_setting)
315 {
316 $auth_ary[$forum_id][$auth_option][] = $user_id;
317 }
318 }
319 }
320 }
321
322 return $auth_ary;
323 }
324
325 /**
326 * Cache data to user_permissions row
327 */
328 function acl_cache(&$userdata)
329 {
330 global $db;
331
332 // Empty user_permissions
333 $userdata['user_permissions'] = '';
334
335 $hold_ary = $this->acl_raw_data($userdata['user_id'], false, false);
336
337 if (isset($hold_ary[$userdata['user_id']]))
338 {
339 $hold_ary = $hold_ary[$userdata['user_id']];
340 }
341
342 // Key 0 in $hold_ary are global options, all others are forum_ids
343
344 // If this user is founder we're going to force fill the admin options ...
345 if ($userdata['user_type'] == USER_FOUNDER)
346 {
347 foreach ($this->acl_options['global'] as $opt => $id)
348 {
349 if (strpos($opt, 'a_') === 0)
350 {
351 $hold_ary[0][$opt] = ACL_YES;
352 }
353 }
354 }
355
356 // Sometimes, it can happen $hold_ary holding forums which do not exist.
357 // Since this function is not called that often (we are caching the data) we check for this inconsistency.
358 $sql = 'SELECT forum_id
359 FROM ' . FORUMS_TABLE . '
360 WHERE ' . $db->sql_in_set('forum_id', array_keys($hold_ary), false, true);
361 $result = $db->sql_query($sql);
362
363 $forum_ids = (isset($hold_ary[0])) ? array(0) : array();
364 while ($row = $db->sql_fetchrow($result))
365 {
366 $forum_ids[] = $row['forum_id'];
367 }
368 $db->sql_freeresult($result);
369
370 // Now determine forums which do not exist and remove the unneeded information (for modding purposes it is clearly the wrong place. ;))
371 $missing_forums = array_diff(array_keys($hold_ary), $forum_ids);
372
373 if (sizeof($missing_forums))
374 {
375 foreach ($missing_forums as $forum_id)
376 {
377 unset($hold_ary[$forum_id]);
378 }
379
380 $sql = 'DELETE FROM ' . ACL_GROUPS_TABLE . ' WHERE ' . $db->sql_in_set('forum_id', $missing_forums);
381 $db->sql_query($sql);
382
383 $sql = 'DELETE FROM ' . ACL_USERS_TABLE . ' WHERE ' . $db->sql_in_set('forum_id', $missing_forums);
384 $db->sql_query($sql);
385 }
386
387 $hold_str = $this->build_bitstring($hold_ary);
388
389 if ($hold_str)
390 {
391 $userdata['user_permissions'] = $hold_str;
392
393 $sql = 'UPDATE ' . USERS_TABLE . "
394 SET user_permissions = '" . $db->sql_escape($userdata['user_permissions']) . "',
395 user_perm_from = 0
396 WHERE user_id = " . $userdata['user_id'];
397 $db->sql_query($sql);
398 }
399
400 return;
401 }
402
403 /**
404 * Build bitstring from permission set
405 */
406 function build_bitstring(&$hold_ary)
407 {
408 $hold_str = '';
409
410 if (sizeof($hold_ary))
411 {
412 ksort($hold_ary);
413
414 $last_f = 0;
415
416 foreach ($hold_ary as $f => $auth_ary)
417 {
418 $ary_key = (!$f) ? 'global' : 'local';
419
420 $bitstring = array();
421 foreach ($this->acl_options[$ary_key] as $opt => $id)
422 {
423 if (isset($auth_ary[$opt]))
424 {
425 $bitstring[$id] = $auth_ary[$opt];
426
427 $option_key = substr($opt, 0, strpos($opt, '_') + 1);
428
429 // If one option is allowed, the global permission for this option has to be allowed too
430 // example: if the user has the a_ permission this means he has one or more a_* permissions
431 if ($auth_ary[$opt] == ACL_YES && (!isset($bitstring[$this->acl_options[$ary_key][$option_key]]) || $bitstring[$this->acl_options[$ary_key][$option_key]] == ACL_NEVER))
432 {
433 $bitstring[$this->acl_options[$ary_key][$option_key]] = ACL_YES;
434 }
435 }
436 else
437 {
438 $bitstring[$id] = ACL_NEVER;
439 }
440 }
441
442 // Now this bitstring defines the permission setting for the current forum $f (or global setting)
443 $bitstring = implode('', $bitstring);
444
445 // The line number indicates the id, therefore we have to add empty lines for those ids not present
446 $hold_str .= str_repeat("\n", $f - $last_f);
447
448 // Convert bitstring for storage - we do not use binary/bytes because PHP's string functions are not fully binary safe
449 for ($i = 0, $bit_length = strlen($bitstring); $i < $bit_length; $i += 31)
450 {
451 $hold_str .= str_pad(base_convert(str_pad(substr($bitstring, $i, 31), 31, 0, STR_PAD_RIGHT), 2, 36), 6, 0, STR_PAD_LEFT);
452 }
453
454 $last_f = $f;
455 }
456 unset($bitstring);
457
458 $hold_str = rtrim($hold_str);
459 }
460
461 return $hold_str;
462 }
463
464 /**
465 * Clear one or all users cached permission settings
466 */
467 function acl_clear_prefetch($user_id = false)
468 {
469 global $db;
470
471 $where_sql = '';
472
473 if ($user_id !== false)
474 {
475 $user_id = (!is_array($user_id)) ? $user_id = array((int) $user_id) : array_map('intval', $user_id);
476 $where_sql = ' WHERE ' . $db->sql_in_set('user_id', $user_id);
477 }
478
479 $sql = 'UPDATE ' . USERS_TABLE . "
480 SET user_permissions = '',
481 user_perm_from = 0
482 $where_sql";
483 $db->sql_query($sql);
484
485 return;
486 }
487
488 /**
489 * Get assigned roles
490 */
491 function acl_role_data($user_type, $role_type, $ug_id = false, $forum_id = false)
492 {
493 global $db;
494
495 $roles = array();
496
497 $sql_id = ($user_type == 'user') ? 'user_id' : 'group_id';
498
499 $sql_ug = ($ug_id !== false) ? ((!is_array($ug_id)) ? "AND a.$sql_id = $ug_id" : 'AND ' . $db->sql_in_set("a.$sql_id", $ug_id)) : '';
500 $sql_forum = ($forum_id !== false) ? ((!is_array($forum_id)) ? "AND a.forum_id = $forum_id" : 'AND ' . $db->sql_in_set('a.forum_id', $forum_id)) : '';
501
502 // Grab assigned roles...
503 $sql = 'SELECT a.auth_role_id, a.' . $sql_id . ', a.forum_id
504 FROM ' . (($user_type == 'user') ? ACL_USERS_TABLE : ACL_GROUPS_TABLE) . ' a, ' . ACL_ROLES_TABLE . " r
505 WHERE a.auth_role_id = r.role_id
506 AND r.role_type = '" . $db->sql_escape($role_type) . "'
507 $sql_ug
508 $sql_forum
509 ORDER BY r.role_order ASC";
510 $result = $db->sql_query($sql);
511
512 while ($row = $db->sql_fetchrow($result))
513 {
514 $roles[$row[$sql_id]][$row['forum_id']] = $row['auth_role_id'];
515 }
516 $db->sql_freeresult($result);
517
518 return $roles;
519 }
520
521 /**
522 * Get raw acl data based on user/option/forum
523 */
524 function acl_raw_data($user_id = false, $opts = false, $forum_id = false)
525 {
526 global $db;
527
528 $sql_user = ($user_id !== false) ? ((!is_array($user_id)) ? 'user_id = ' . (int) $user_id : $db->sql_in_set('user_id', array_map('intval', $user_id))) : '';
529 $sql_forum = ($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))) : '';
530
531 $sql_opts = '';
532
533 if ($opts !== false)
534 {
535 $this->build_auth_option_statement('ao.auth_option', $opts, $sql_opts);
536 }
537
538 $hold_ary = array();
539
540 // First grab user settings ... each user has only one setting for each
541 // option ... so we shouldn't need any ACL_NEVER checks ... he says ...
542 // Grab assigned roles...
543 $sql = $db->sql_build_query('SELECT', array(
544 'SELECT' => 'ao.auth_option, a.auth_role_id, r.auth_setting as role_auth_setting, a.user_id, a.forum_id, a.auth_setting',
545
546 'FROM' => array(
547 ACL_OPTIONS_TABLE => 'ao',
548 ACL_USERS_TABLE => 'a'
549 ),
550
551 'LEFT_JOIN' => array(
552 array(
553 'FROM' => array(ACL_ROLES_DATA_TABLE => 'r'),
554 'ON' => 'a.auth_role_id = r.role_id'
555 )
556 ),
557
558 'WHERE' => '(ao.auth_option_id = a.auth_option_id OR ao.auth_option_id = r.auth_option_id)
559 ' . (($sql_user) ? 'AND a.' . $sql_user : '') . "
560 $sql_forum
561 $sql_opts",
562 ));
563 $result = $db->sql_query($sql);
564
565 while ($row = $db->sql_fetchrow($result))
566 {
567 $setting = ($row['auth_role_id']) ? $row['role_auth_setting'] : $row['auth_setting'];
568 $hold_ary[$row['user_id']][$row['forum_id']][$row['auth_option']] = $setting;
569 }
570 $db->sql_freeresult($result);
571
572 // Now grab group settings ... ACL_NEVER overrides ACL_YES so act appropriatley
573 $sql_ary[] = $db->sql_build_query('SELECT', array(
574 'SELECT' => 'ug.user_id, ao.auth_option, a.forum_id, a.auth_setting, a.auth_role_id, r.auth_setting as role_auth_setting',
575
576 'FROM' => array(
577 USER_GROUP_TABLE => 'ug',
578 ACL_OPTIONS_TABLE => 'ao',
579 ACL_GROUPS_TABLE => 'a'
580 ),
581
582 'LEFT_JOIN' => array(
583 array(
584 'FROM' => array(ACL_ROLES_DATA_TABLE => 'r'),
585 'ON' => 'a.auth_role_id = r.role_id'
586 )
587 ),
588
589 'WHERE' => 'ao.auth_option_id = a.auth_option_id
590 AND a.group_id = ug.group_id
591 AND ug.user_pending = 0
592 ' . (($sql_user) ? 'AND ug.' . $sql_user : '') . "
593 $sql_forum
594 $sql_opts"
595 ));
596
597 $sql_ary[] = $db->sql_build_query('SELECT', array(
598 'SELECT' => 'ug.user_id, a.forum_id, a.auth_setting, a.auth_role_id, r.auth_setting as role_auth_setting, ao.auth_option' ,
599
600 'FROM' => array(
601 ACL_OPTIONS_TABLE => 'ao'
602
603 ),
604
605 'LEFT_JOIN' => array(
606
607 array(
608 'FROM' => array(ACL_ROLES_DATA_TABLE => 'r'),
609 'ON' => 'r.auth_option_id = ao.auth_option_id'
610 ),
611 array(
612 'FROM' => array(ACL_GROUPS_TABLE => 'a'),
613 'ON' => 'a.auth_role_id = r.role_id'
614 ),
615 array(
616 'FROM' => array(USER_GROUP_TABLE => 'ug'),
617 'ON' => 'ug.group_id = a.group_id'
618 )
619
620 ),
621
622 'WHERE' => 'ug.user_pending = 0
623 ' . (($sql_user) ? 'AND ug.' . $sql_user : '') . "
624 $sql_forum
625 $sql_opts"
626 ));
627
628
629 foreach ($sql_ary as $sql)
630 {
631 $result = $db->sql_query($sql);
632
633 while ($row = $db->sql_fetchrow($result))
634 {
635 if (!isset($hold_ary[$row['user_id']][$row['forum_id']][$row['auth_option']]) || (isset($hold_ary[$row['user_id']][$row['forum_id']][$row['auth_option']]) && $hold_ary[$row['user_id']][$row['forum_id']][$row['auth_option']] != ACL_NEVER))
636 {
637 $setting = ($row['auth_role_id']) ? $row['role_auth_setting'] : $row['auth_setting'];
638 $hold_ary[$row['user_id']][$row['forum_id']][$row['auth_option']] = $setting;
639
640 // Check for existence of ACL_YES if an option got set to ACL_NEVER
641 if ($setting == ACL_NEVER)
642 {
643 $flag = substr($row['auth_option'], 0, strpos($row['auth_option'], '_') + 1);
644
645 if (isset($hold_ary[$row['user_id']][$row['forum_id']][$flag]) && $hold_ary[$row['user_id']][$row['forum_id']][$flag] == ACL_YES)
646 {
647 unset($hold_ary[$row['user_id']][$row['forum_id']][$flag]);
648
649 if (in_array(ACL_YES, $hold_ary[$row['user_id']][$row['forum_id']]))
650 {
651 $hold_ary[$row['user_id']][$row['forum_id']][$flag] = ACL_YES;
652 }
653 }
654 }
655 }
656 }
657 $db->sql_freeresult($result);
658 }
659
660 return $hold_ary;
661 }
662
663 /**
664 * Get raw user based permission settings
665 */
666 function acl_user_raw_data($user_id = false, $opts = false, $forum_id = false)
667 {
668 global $db;
669
670 $sql_user = ($user_id !== false) ? ((!is_array($user_id)) ? 'user_id = ' . (int) $user_id : $db->sql_in_set('user_id', array_map('intval', $user_id))) : '';
671 $sql_forum = ($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))) : '';
672
673 $sql_opts = '';
674
675 if ($opts !== false)
676 {
677 $this->build_auth_option_statement('ao.auth_option', $opts, $sql_opts);
678 }
679
680 $hold_ary = array();
681
682 // Grab user settings...
683 $sql = $db->sql_build_query('SELECT', array(
684 'SELECT' => 'ao.auth_option, a.auth_role_id, r.auth_setting as role_auth_setting, a.user_id, a.forum_id, a.auth_setting',
685
686 'FROM' => array(
687 ACL_OPTIONS_TABLE => 'ao',
688 ACL_USERS_TABLE => 'a'
689 ),
690
691 'LEFT_JOIN' => array(
692 array(
693 'FROM' => array(ACL_ROLES_DATA_TABLE => 'r'),
694 'ON' => 'a.auth_role_id = r.role_id'
695 ),
696 ),
697
698 'WHERE' => '(ao.auth_option_id = a.auth_option_id OR ao.auth_option_id = r.auth_option_id)
699 ' . (($sql_user) ? 'AND a.' . $sql_user : '') . "
700 $sql_forum
701 $sql_opts",
702
703 'ORDER_BY' => 'a.forum_id, ao.auth_option'
704 ));
705 $result = $db->sql_query($sql);
706
707 while ($row = $db->sql_fetchrow($result))
708 {
709 $setting = ($row['auth_role_id']) ? $row['role_auth_setting'] : $row['auth_setting'];
710 $hold_ary[$row['user_id']][$row['forum_id']][$row['auth_option']] = $setting;
711 }
712 $db->sql_freeresult($result);
713
714 return $hold_ary;
715 }
716
717 /**
718 * Get raw group based permission settings
719 */
720 function acl_group_raw_data($group_id = false, $opts = false, $forum_id = false)
721 {
722 global $db;
723
724 $sql_group = ($group_id !== false) ? ((!is_array($group_id)) ? 'group_id = ' . (int) $group_id : $db->sql_in_set('group_id', array_map('intval', $group_id))) : '';
725 $sql_forum = ($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))) : '';
726
727 $sql_opts = '';
728
729 if ($opts !== false)
730 {
731 $this->build_auth_option_statement('ao.auth_option', $opts, $sql_opts);
732 }
733
734 $hold_ary = array();
735
736 // Grab group settings...
737 $sql = $db->sql_build_query('SELECT', array(
738 'SELECT' => 'a.group_id, ao.auth_option, a.forum_id, a.auth_setting, a.auth_role_id, r.auth_setting as role_auth_setting',
739
740 'FROM' => array(
741 ACL_OPTIONS_TABLE => 'ao',
742 ACL_GROUPS_TABLE => 'a'
743 ),
744
745 'LEFT_JOIN' => array(
746 array(
747 'FROM' => array(ACL_ROLES_DATA_TABLE => 'r'),
748 'ON' => 'a.auth_role_id = r.role_id'
749 ),
750 ),
751
752 'WHERE' => '(ao.auth_option_id = a.auth_option_id OR ao.auth_option_id = r.auth_option_id)
753 ' . (($sql_group) ? 'AND a.' . $sql_group : '') . "
754 $sql_forum
755 $sql_opts",
756
757 'ORDER_BY' => 'a.forum_id, ao.auth_option'
758 ));
759 $result = $db->sql_query($sql);
760
761 while ($row = $db->sql_fetchrow($result))
762 {
763 $setting = ($row['auth_role_id']) ? $row['role_auth_setting'] : $row['auth_setting'];
764 $hold_ary[$row['group_id']][$row['forum_id']][$row['auth_option']] = $setting;
765 }
766 $db->sql_freeresult($result);
767
768 return $hold_ary;
769 }
770
771 /**
772 * Authentication plug-ins is largely down to Sergey Kanareykin, our thanks to him.
773 */
774 function login($username, $password, $autologin = false, $viewonline = 1, $admin = 0)
775 {
776 global $config, $db, $user, $phpbb_root_path, $phpEx;
777
778 $method = trim(basename($config['auth_method']));
779 include_once($phpbb_root_path . 'includes/auth/auth_' . $method . '.' . $phpEx);
780
781 $method = 'login_' . $method;
782 if (function_exists($method))
783 {
784 $login = $method($username, $password);
785
786 // If the auth module wants us to create an empty profile do so and then treat the status as LOGIN_SUCCESS
787 if ($login['status'] == LOGIN_SUCCESS_CREATE_PROFILE)
788 {
789 // we are going to use the user_add function so include functions_user.php if it wasn't defined yet
790 if (!function_exists('user_add'))
791 {
792 include($phpbb_root_path . 'includes/functions_user.' . $phpEx);
793 }
794
795 user_add($login['user_row'], (isset($login['cp_data'])) ? $login['cp_data'] : false);
796
797 $sql = 'SELECT user_id, username, user_password, user_passchg, user_email, user_type
798 FROM ' . USERS_TABLE . "
799 WHERE username_clean = '" . $db->sql_escape(utf8_clean_string($username)) . "'";
800 $result = $db->sql_query($sql);
801 $row = $db->sql_fetchrow($result);
802 $db->sql_freeresult($result);
803
804 if (!$row)
805 {
806 return array(
807 'status' => LOGIN_ERROR_EXTERNAL_AUTH,
808 'error_msg' => 'AUTH_NO_PROFILE_CREATED',
809 'user_row' => array('user_id' => ANONYMOUS),
810 );
811 }
812
813 $login = array(
814 'status' => LOGIN_SUCCESS,
815 'error_msg' => false,
816 'user_row' => $row,
817 );
818 }
819
820 // If login succeeded, we will log the user in... else we pass the login array through...
821 if ($login['status'] == LOGIN_SUCCESS)
822 {
823 $old_session_id = $user->session_id;
824
825 if ($admin)
826 {
827 global $SID, $_SID;
828
829 $cookie_expire = time() - 31536000;
830 $user->set_cookie('u', '', $cookie_expire);
831 $user->set_cookie('sid', '', $cookie_expire);
832 unset($cookie_expire);
833
834 $SID = '?sid=';
835 $user->session_id = $_SID = '';
836 }
837
838 $result = $user->session_create($login['user_row']['user_id'], $admin, $autologin, $viewonline);
839
840 // Successful session creation
841 if ($result === true)
842 {
843 // If admin re-authentication we remove the old session entry because a new one has been created...
844 if ($admin)
845 {
846 // the login array is used because the user ids do not differ for re-authentication
847 $sql = 'DELETE FROM ' . SESSIONS_TABLE . "
848 WHERE session_id = '" . $db->sql_escape($old_session_id) . "'
849 AND session_user_id = {$login['user_row']['user_id']}";
850 $db->sql_query($sql);
851 }
852
853 return array(
854 'status' => LOGIN_SUCCESS,
855 'error_msg' => false,
856 'user_row' => $login['user_row'],
857 );
858 }
859
860 return array(
861 'status' => LOGIN_BREAK,
862 'error_msg' => $result,
863 'user_row' => $login['user_row'],
864 );
865 }
866
867 return $login;
868 }
869
870 trigger_error('Authentication method not found', E_USER_ERROR);
871 }
872
873 /**
874 * Fill auth_option statement for later querying based on the supplied options
875 */
876 function build_auth_option_statement($key, $auth_options, &$sql_opts)
877 {
878 global $db;
879
880 if (!is_array($auth_options))
881 {
882 if (strpos($auth_options, '%') !== false)
883 {
884 $sql_opts = "AND $key " . $db->sql_like_expression(str_replace('%', $db->any_char, $auth_options));
885 }
886 else
887 {
888 $sql_opts = "AND $key = '" . $db->sql_escape($auth_options) . "'";
889 }
890 }
891 else
892 {
893 $is_like_expression = false;
894
895 foreach ($auth_options as $option)
896 {
897 if (strpos($option, '%') !== false)
898 {
899 $is_like_expression = true;
900 }
901 }
902
903 if (!$is_like_expression)
904 {
905 $sql_opts = 'AND ' . $db->sql_in_set($key, $auth_options);
906 }
907 else
908 {
909 $sql = array();
910
911 foreach ($auth_options as $option)
912 {
913 if (strpos($option, '%') !== false)
914 {
915 $sql[] = $key . ' ' . $db->sql_like_expression(str_replace('%', $db->any_char, $option));
916 }
917 else
918 {
919 $sql[] = $key . " = '" . $db->sql_escape($option) . "'";
920 }
921 }
922
923 $sql_opts = 'AND (' . implode(' OR ', $sql) . ')';
924 }
925 }
926 }
927 }
928
929 ?>