-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathcapabilities.php
More file actions
executable file
·1515 lines (1357 loc) · 37.2 KB
/
capabilities.php
File metadata and controls
executable file
·1515 lines (1357 loc) · 37.2 KB
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
<?php
/**
* WordPress Roles and Capabilities.
*
* @package WordPress
* @subpackage User
*/
/**
* WordPress User Roles.
*
* The role option is simple, the structure is organized by role name that store
* the name in value of the 'name' key. The capabilities are stored as an array
* in the value of the 'capability' key.
*
* <code>
* array (
* 'rolename' => array (
* 'name' => 'rolename',
* 'capabilities' => array()
* )
* )
* </code>
*
* @since 2.0.0
* @package WordPress
* @subpackage User
*/
class WP_Roles {
/**
* List of roles and capabilities.
*
* @since 2.0.0
* @access public
* @var array
*/
var $roles;
/**
* List of the role objects.
*
* @since 2.0.0
* @access public
* @var array
*/
var $role_objects = array();
/**
* List of role names.
*
* @since 2.0.0
* @access public
* @var array
*/
var $role_names = array();
/**
* Option name for storing role list.
*
* @since 2.0.0
* @access public
* @var string
*/
var $role_key;
/**
* Whether to use the database for retrieval and storage.
*
* @since 2.1.0
* @access public
* @var bool
*/
var $use_db = true;
/**
* Constructor
*
* @since 2.0.0
*/
function __construct() {
$this->_init();
}
/**
* Set up the object properties.
*
* The role key is set to the current prefix for the $wpdb object with
* 'user_roles' appended. If the $wp_user_roles global is set, then it will
* be used and the role option will not be updated or used.
*
* @since 2.1.0
* @access protected
* @uses $wpdb Used to get the database prefix.
* @global array $wp_user_roles Used to set the 'roles' property value.
*/
function _init () {
global $wpdb, $wp_user_roles;
$this->role_key = $wpdb->get_blog_prefix() . 'user_roles';
if ( ! empty( $wp_user_roles ) ) {
$this->roles = $wp_user_roles;
$this->use_db = false;
} else {
$this->roles = get_option( $this->role_key );
}
if ( empty( $this->roles ) )
return;
$this->role_objects = array();
$this->role_names = array();
foreach ( array_keys( $this->roles ) as $role ) {
$this->role_objects[$role] = new WP_Role( $role, $this->roles[$role]['capabilities'] );
$this->role_names[$role] = $this->roles[$role]['name'];
}
}
/**
* Reinitialize the object
*
* Recreates the role objects. This is typically called only by switch_to_blog()
* after switching wpdb to a new blog ID.
*
* @since 3.5.0
* @access public
*/
function reinit() {
// There is no need to reinit if using the wp_user_roles global.
if ( ! $this->use_db )
return;
global $wpdb, $wp_user_roles;
// Duplicated from _init() to avoid an extra function call.
$this->role_key = $wpdb->get_blog_prefix() . 'user_roles';
$this->roles = get_option( $this->role_key );
if ( empty( $this->roles ) )
return;
$this->role_objects = array();
$this->role_names = array();
foreach ( array_keys( $this->roles ) as $role ) {
$this->role_objects[$role] = new WP_Role( $role, $this->roles[$role]['capabilities'] );
$this->role_names[$role] = $this->roles[$role]['name'];
}
}
/**
* Add role name with capabilities to list.
*
* Updates the list of roles, if the role doesn't already exist.
*
* The capabilities are defined in the following format `array( 'read' => true );`
* To explicitly deny a role a capability you set the value for that capability to false.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
* @param string $display_name Role display name.
* @param array $capabilities List of role capabilities in the above format.
* @return WP_Role|null WP_Role object if role is added, null if already exists.
*/
function add_role( $role, $display_name, $capabilities = array() ) {
if ( isset( $this->roles[$role] ) )
return;
$this->roles[$role] = array(
'name' => $display_name,
'capabilities' => $capabilities
);
if ( $this->use_db )
update_option( $this->role_key, $this->roles );
$this->role_objects[$role] = new WP_Role( $role, $capabilities );
$this->role_names[$role] = $display_name;
return $this->role_objects[$role];
}
/**
* Remove role by name.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
*/
function remove_role( $role ) {
if ( ! isset( $this->role_objects[$role] ) )
return;
unset( $this->role_objects[$role] );
unset( $this->role_names[$role] );
unset( $this->roles[$role] );
if ( $this->use_db )
update_option( $this->role_key, $this->roles );
if ( get_option( 'default_role' ) == $role )
update_option( 'default_role', 'subscriber' );
}
/**
* Add capability to role.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
* @param string $cap Capability name.
* @param bool $grant Optional, default is true. Whether role is capable of performing capability.
*/
function add_cap( $role, $cap, $grant = true ) {
if ( ! isset( $this->roles[$role] ) )
return;
$this->roles[$role]['capabilities'][$cap] = $grant;
if ( $this->use_db )
update_option( $this->role_key, $this->roles );
}
/**
* Remove capability from role.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
* @param string $cap Capability name.
*/
function remove_cap( $role, $cap ) {
if ( ! isset( $this->roles[$role] ) )
return;
unset( $this->roles[$role]['capabilities'][$cap] );
if ( $this->use_db )
update_option( $this->role_key, $this->roles );
}
/**
* Retrieve role object by name.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
* @return WP_Role|null WP_Role object if found, null if the role does not exist.
*/
function get_role( $role ) {
if ( isset( $this->role_objects[$role] ) )
return $this->role_objects[$role];
else
return null;
}
/**
* Retrieve list of role names.
*
* @since 2.0.0
* @access public
*
* @return array List of role names.
*/
function get_names() {
return $this->role_names;
}
/**
* Whether role name is currently in the list of available roles.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name to look up.
* @return bool
*/
function is_role( $role ) {
return isset( $this->role_names[$role] );
}
}
/**
* WordPress Role class.
*
* @since 2.0.0
* @package WordPress
* @subpackage User
*/
class WP_Role {
/**
* Role name.
*
* @since 2.0.0
* @access public
* @var string
*/
var $name;
/**
* List of capabilities the role contains.
*
* @since 2.0.0
* @access public
* @var array
*/
var $capabilities;
/**
* Constructor - Set up object properties.
*
* The list of capabilities, must have the key as the name of the capability
* and the value a boolean of whether it is granted to the role.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
* @param array $capabilities List of capabilities.
*/
function __construct( $role, $capabilities ) {
$this->name = $role;
$this->capabilities = $capabilities;
}
/**
* Assign role a capability.
*
* @see WP_Roles::add_cap() Method uses implementation for role.
* @since 2.0.0
* @access public
*
* @param string $cap Capability name.
* @param bool $grant Whether role has capability privilege.
*/
function add_cap( $cap, $grant = true ) {
global $wp_roles;
if ( ! isset( $wp_roles ) )
$wp_roles = new WP_Roles();
$this->capabilities[$cap] = $grant;
$wp_roles->add_cap( $this->name, $cap, $grant );
}
/**
* Remove capability from role.
*
* This is a container for {@link WP_Roles::remove_cap()} to remove the
* capability from the role. That is to say, that {@link
* WP_Roles::remove_cap()} implements the functionality, but it also makes
* sense to use this class, because you don't need to enter the role name.
*
* @since 2.0.0
* @access public
*
* @param string $cap Capability name.
*/
function remove_cap( $cap ) {
global $wp_roles;
if ( ! isset( $wp_roles ) )
$wp_roles = new WP_Roles();
unset( $this->capabilities[$cap] );
$wp_roles->remove_cap( $this->name, $cap );
}
/**
* Whether role has capability.
*
* The capabilities is passed through the 'role_has_cap' filter. The first
* parameter for the hook is the list of capabilities the class has
* assigned. The second parameter is the capability name to look for. The
* third and final parameter for the hook is the role name.
*
* @since 2.0.0
* @access public
*
* @param string $cap Capability name.
* @return bool True, if user has capability. False, if doesn't have capability.
*/
function has_cap( $cap ) {
/**
* Filter which capabilities a role has.
*
* @since 2.0.0
*
* @param array $capabilities Array of role capabilities.
* @param string $cap Capability name.
* @param string $name Role name.
*/
$capabilities = apply_filters( 'role_has_cap', $this->capabilities, $cap, $this->name );
if ( !empty( $capabilities[$cap] ) )
return $capabilities[$cap];
else
return false;
}
}
/**
* WordPress User class.
*
* @since 2.0.0
* @package WordPress
* @subpackage User
*/
class WP_User {
/**
* User data container.
*
* @since 2.0.0
* @access private
* @var array
*/
var $data;
/**
* The user's ID.
*
* @since 2.1.0
* @access public
* @var int
*/
var $ID = 0;
/**
* The individual capabilities the user has been given.
*
* @since 2.0.0
* @access public
* @var array
*/
var $caps = array();
/**
* User metadata option name.
*
* @since 2.0.0
* @access public
* @var string
*/
var $cap_key;
/**
* The roles the user is part of.
*
* @since 2.0.0
* @access public
* @var array
*/
var $roles = array();
/**
* All capabilities the user has, including individual and role based.
*
* @since 2.0.0
* @access public
* @var array
*/
var $allcaps = array();
/**
* The filter context applied to user data fields.
*
* @since 2.9.0
* @access private
* @var string
*/
var $filter = null;
private static $back_compat_keys;
/**
* Constructor
*
* Retrieves the userdata and passes it to {@link WP_User::init()}.
*
* @since 2.0.0
* @access public
*
* @param int|string|stdClass|WP_User $id User's ID, a WP_User object, or a user object from the DB.
* @param string $name Optional. User's username
* @param int $blog_id Optional Blog ID, defaults to current blog.
* @return WP_User
*/
function __construct( $id = 0, $name = '', $blog_id = '' ) {
if ( ! isset( self::$back_compat_keys ) ) {
$prefix = $GLOBALS['wpdb']->prefix;
self::$back_compat_keys = array(
'user_firstname' => 'first_name',
'user_lastname' => 'last_name',
'user_description' => 'description',
'user_level' => $prefix . 'user_level',
$prefix . 'usersettings' => $prefix . 'user-settings',
$prefix . 'usersettingstime' => $prefix . 'user-settings-time',
);
}
if ( is_a( $id, 'WP_User' ) ) {
$this->init( $id->data, $blog_id );
return;
} elseif ( is_object( $id ) ) {
$this->init( $id, $blog_id );
return;
}
if ( ! empty( $id ) && ! is_numeric( $id ) ) {
$name = $id;
$id = 0;
}
if ( $id )
$data = self::get_data_by( 'id', $id );
else
$data = self::get_data_by( 'login', $name );
if ( $data )
$this->init( $data, $blog_id );
}
/**
* Sets up object properties, including capabilities.
*
* @param object $data User DB row object
* @param int $blog_id Optional. The blog id to initialize for
*/
function init( $data, $blog_id = '' ) {
$this->data = $data;
$this->ID = (int) $data->ID;
$this->for_blog( $blog_id );
}
/**
* Return only the main user fields
*
* @since 3.3.0
*
* @param string $field The field to query against: 'id', 'slug', 'email' or 'login'
* @param string|int $value The field value
* @return object Raw user object
*/
static function get_data_by( $field, $value ) {
global $wpdb;
if ( 'id' == $field ) {
// Make sure the value is numeric to avoid casting objects, for example,
// to int 1.
if ( ! is_numeric( $value ) )
return false;
$value = intval( $value );
if ( $value < 1 )
return false;
} else {
$value = trim( $value );
}
if ( !$value )
return false;
switch ( $field ) {
case 'id':
$user_id = $value;
$db_field = 'ID';
break;
case 'slug':
$user_id = wp_cache_get($value, 'userslugs');
$db_field = 'user_nicename';
break;
case 'email':
$user_id = wp_cache_get($value, 'useremail');
$db_field = 'user_email';
break;
case 'login':
$value = sanitize_user( $value );
$user_id = wp_cache_get($value, 'userlogins');
$db_field = 'user_login';
break;
default:
return false;
}
if ( false !== $user_id ) {
if ( $user = wp_cache_get( $user_id, 'users' ) )
return $user;
}
if ( !$user = $wpdb->get_row( $wpdb->prepare(
"SELECT * FROM $wpdb->users WHERE $db_field = %s", $value
) ) )
return false;
update_user_caches( $user );
return $user;
}
/**
* Magic method for checking the existence of a certain custom field
*
* @since 3.3.0
*/
function __isset( $key ) {
if ( 'id' == $key ) {
_deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) );
$key = 'ID';
}
if ( isset( $this->data->$key ) )
return true;
if ( isset( self::$back_compat_keys[ $key ] ) )
$key = self::$back_compat_keys[ $key ];
return metadata_exists( 'user', $this->ID, $key );
}
/**
* Magic method for accessing custom fields
*
* @since 3.3.0
*/
function __get( $key ) {
if ( 'id' == $key ) {
_deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) );
return $this->ID;
}
if ( isset( $this->data->$key ) ) {
$value = $this->data->$key;
} else {
if ( isset( self::$back_compat_keys[ $key ] ) )
$key = self::$back_compat_keys[ $key ];
$value = get_user_meta( $this->ID, $key, true );
}
if ( $this->filter ) {
$value = sanitize_user_field( $key, $value, $this->ID, $this->filter );
}
return $value;
}
/**
* Magic method for setting custom fields
*
* @since 3.3.0
*/
function __set( $key, $value ) {
if ( 'id' == $key ) {
_deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) );
$this->ID = $value;
return;
}
$this->data->$key = $value;
}
/**
* Determine whether the user exists in the database.
*
* @since 3.4.0
* @access public
*
* @return bool True if user exists in the database, false if not.
*/
function exists() {
return ! empty( $this->ID );
}
/**
* Retrieve the value of a property or meta key.
*
* Retrieves from the users and usermeta table.
*
* @since 3.3.0
*
* @param string $key Property
*/
function get( $key ) {
return $this->__get( $key );
}
/**
* Determine whether a property or meta key is set
*
* Consults the users and usermeta tables.
*
* @since 3.3.0
*
* @param string $key Property
*/
function has_prop( $key ) {
return $this->__isset( $key );
}
/**
* Return an array representation.
*
* @since 3.5.0
*
* @return array Array representation.
*/
function to_array() {
return get_object_vars( $this->data );
}
/**
* Set up capability object properties.
*
* Will set the value for the 'cap_key' property to current database table
* prefix, followed by 'capabilities'. Will then check to see if the
* property matching the 'cap_key' exists and is an array. If so, it will be
* used.
*
* @access protected
* @since 2.1.0
*
* @param string $cap_key Optional capability key
*/
function _init_caps( $cap_key = '' ) {
global $wpdb;
if ( empty($cap_key) )
$this->cap_key = $wpdb->get_blog_prefix() . 'capabilities';
else
$this->cap_key = $cap_key;
$this->caps = get_user_meta( $this->ID, $this->cap_key, true );
if ( ! is_array( $this->caps ) )
$this->caps = array();
$this->get_role_caps();
}
/**
* Retrieve all of the role capabilities and merge with individual capabilities.
*
* All of the capabilities of the roles the user belongs to are merged with
* the users individual roles. This also means that the user can be denied
* specific roles that their role might have, but the specific user isn't
* granted permission to.
*
* @since 2.0.0
* @uses $wp_roles
* @access public
*
* @return array List of all capabilities for the user.
*/
function get_role_caps() {
global $wp_roles;
if ( ! isset( $wp_roles ) )
$wp_roles = new WP_Roles();
//Filter out caps that are not role names and assign to $this->roles
if ( is_array( $this->caps ) )
$this->roles = array_filter( array_keys( $this->caps ), array( $wp_roles, 'is_role' ) );
//Build $allcaps from role caps, overlay user's $caps
$this->allcaps = array();
foreach ( (array) $this->roles as $role ) {
$the_role = $wp_roles->get_role( $role );
$this->allcaps = array_merge( (array) $this->allcaps, (array) $the_role->capabilities );
}
$this->allcaps = array_merge( (array) $this->allcaps, (array) $this->caps );
return $this->allcaps;
}
/**
* Add role to user.
*
* Updates the user's meta data option with capabilities and roles.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
*/
function add_role( $role ) {
$this->caps[$role] = true;
update_user_meta( $this->ID, $this->cap_key, $this->caps );
$this->get_role_caps();
$this->update_user_level_from_caps();
}
/**
* Remove role from user.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
*/
function remove_role( $role ) {
if ( !in_array($role, $this->roles) )
return;
unset( $this->caps[$role] );
update_user_meta( $this->ID, $this->cap_key, $this->caps );
$this->get_role_caps();
$this->update_user_level_from_caps();
}
/**
* Set the role of the user.
*
* This will remove the previous roles of the user and assign the user the
* new one. You can set the role to an empty string and it will remove all
* of the roles from the user.
*
* @since 2.0.0
* @access public
*
* @param string $role Role name.
*/
function set_role( $role ) {
if ( 1 == count( $this->roles ) && $role == current( $this->roles ) )
return;
foreach ( (array) $this->roles as $oldrole )
unset( $this->caps[$oldrole] );
$old_roles = $this->roles;
if ( !empty( $role ) ) {
$this->caps[$role] = true;
$this->roles = array( $role => true );
} else {
$this->roles = false;
}
update_user_meta( $this->ID, $this->cap_key, $this->caps );
$this->get_role_caps();
$this->update_user_level_from_caps();
/**
* Fires after the user's role has changed.
*
* @since 2.9.0
* @since 3.6.0 Added $old_roles to include an array of the user's previous roles.
*
* @param int $user_id The user ID.
* @param string $role The new role.
* @param array $old_roles An array of the user's previous roles.
*/
do_action( 'set_user_role', $this->ID, $role, $old_roles );
}
/**
* Choose the maximum level the user has.
*
* Will compare the level from the $item parameter against the $max
* parameter. If the item is incorrect, then just the $max parameter value
* will be returned.
*
* Used to get the max level based on the capabilities the user has. This
* is also based on roles, so if the user is assigned the Administrator role
* then the capability 'level_10' will exist and the user will get that
* value.
*
* @since 2.0.0
* @access public
*
* @param int $max Max level of user.
* @param string $item Level capability name.
* @return int Max Level.
*/
function level_reduction( $max, $item ) {
if ( preg_match( '/^level_(10|[0-9])$/i', $item, $matches ) ) {
$level = intval( $matches[1] );
return max( $max, $level );
} else {
return $max;
}
}
/**
* Update the maximum user level for the user.
*
* Updates the 'user_level' user metadata (includes prefix that is the
* database table prefix) with the maximum user level. Gets the value from
* the all of the capabilities that the user has.
*
* @since 2.0.0
* @access public
*/
function update_user_level_from_caps() {
global $wpdb;
$this->user_level = array_reduce( array_keys( $this->allcaps ), array( $this, 'level_reduction' ), 0 );
update_user_meta( $this->ID, $wpdb->get_blog_prefix() . 'user_level', $this->user_level );
}
/**
* Add capability and grant or deny access to capability.
*
* @since 2.0.0
* @access public
*
* @param string $cap Capability name.
* @param bool $grant Whether to grant capability to user.
*/
function add_cap( $cap, $grant = true ) {
$this->caps[$cap] = $grant;
update_user_meta( $this->ID, $this->cap_key, $this->caps );
}
/**
* Remove capability from user.
*
* @since 2.0.0
* @access public
*
* @param string $cap Capability name.
*/
function remove_cap( $cap ) {
if ( ! isset( $this->caps[$cap] ) )
return;
unset( $this->caps[$cap] );
update_user_meta( $this->ID, $this->cap_key, $this->caps );
}
/**
* Remove all of the capabilities of the user.
*
* @since 2.1.0
* @access public
*/
function remove_all_caps() {
global $wpdb;
$this->caps = array();
delete_user_meta( $this->ID, $this->cap_key );
delete_user_meta( $this->ID, $wpdb->get_blog_prefix() . 'user_level' );
$this->get_role_caps();
}
/**
* Whether user has capability or role name.
*
* This is useful for looking up whether the user has a specific role
* assigned to the user. The second optional parameter can also be used to
* check for capabilities against a specific object, such as a post or user.
*
* @since 2.0.0
* @access public
*
* @param string|int $cap Capability or role name to search.
* @return bool True, if user has capability; false, if user does not have capability.
*/
function has_cap( $cap ) {
if ( is_numeric( $cap ) ) {
_deprecated_argument( __FUNCTION__, '2.0', __('Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead.') );
$cap = $this->translate_level_to_cap( $cap );
}
$args = array_slice( func_get_args(), 1 );
$args = array_merge( array( $cap, $this->ID ), $args );
$caps = call_user_func_array( 'map_meta_cap', $args );
// Multisite super admin has all caps by definition, Unless specifically denied.
if ( is_multisite() && is_super_admin( $this->ID ) ) {
if ( in_array('do_not_allow', $caps) )
return false;
return true;
}
/**
* Dynamically filter a user's capabilities.
*
* @since 2.0.0
* @since 3.7.0 Added the user object.
*
* @param array $allcaps An array of all the role's capabilities.
* @param array $caps Actual capabilities for meta capability.
* @param array $args Optional parameters passed to has_cap(), typically object ID.
* @param WP_User $user The user object.
*/
// Must have ALL requested caps
$capabilities = apply_filters( 'user_has_cap', $this->allcaps, $caps, $args, $this );
$capabilities['exist'] = true; // Everyone is allowed to exist
foreach ( (array) $caps as $cap ) {
if ( empty( $capabilities[ $cap ] ) )
return false;
}
return true;
}
/**
* Convert numeric level to level capability name.
*
* Prepends 'level_' to level number.
*
* @since 2.0.0
* @access public
*
* @param int $level Level number, 1 to 10.
* @return string
*/
function translate_level_to_cap( $level ) {
return 'level_' . $level;
}