groups / lib / wp / class-groups-wordpress.php

class-groups-wordpress.php in Groups – Memberships and Access Control 1.1.4, at lib/wp/class-groups-wordpress.php

115 lines 3.6 KB

Raw Download Zip

1	<?php
2	/**
3	* class-groups-wordpress.php
4	*
5	* Copyright (c) "kento" Karim Rahimpur www.itthinx.com
6	*
7	* This code is released under the GNU General Public License.
8	* See COPYRIGHT.txt and LICENSE.txt.
9	*
10	* This code is distributed in the hope that it will be useful,
11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13	* GNU General Public License for more details.
14	*
15	* This header and all notices must be kept intact.
16	*
17	* @author Karim Rahimpur
18	* @package groups
19	* @since groups 1.0.0
20	*/
21	class Groups_WordPress {
22
23	/**
24	* Hook into actions to extend user capabilities.
25	*
26	* @todo We might want to keep up with new capabilities when added, so
27	* that others don't have to add these explicitly to Groups when they
28	* add them to WordPress. Currently there's no hook for when a capability
29	* is added and checking this in any other way is too costly.
30	*/
31	public static function init() {
32	// args: string $result, Groups_User $groups_user, string $capability
33	add_filter( 'groups_user_can', array( __CLASS__, 'groups_user_can' ), 10, 3 );
34	add_filter( 'user_has_cap', array( __CLASS__, 'user_has_cap' ), 10, 3 );
35	}
36
37	/**
38	* Extends Groups user capability with its WP_User capability.
39	*
40	* @param string $result
41	* @param Groups_User $groups_user
42	* @param string $capability
43	*/
44	public static function groups_user_can( $result, $groups_user, $capability ) {
45	if ( !$result ) {
46	// Check if the capability exists, otherwise this will
47	// produce a deprecation warning "Usage of user levels by plugins
48	// and themes is deprecated", not because we actually use a
49	// deprecated user level, but because it doesn't exist.
50	if ( Groups_Capability::read_by_capability( $capability ) ) {
51	$result = user_can( $groups_user->user->ID, $capability );
52	}
53	}
54	return $result;
55	}
56
57	/**
58	* Extend user capabilities with Groups user capabilities.
59	*
60	* @param array $allcaps the capabilities the user has
61	* @param unknown_type $caps
62	* @param unknown_type $args
63	*/
64	public static function user_has_cap( $allcaps, $caps, $args ) {
65	$user_id = isset( $args[1] ) ? $args[1] : null;
66	$groups_user = new Groups_User( $user_id );
67	if ( is_array( $caps ) ) {
68	// we need to deactivate this because invoking $groups_user->can()
69	// would trigger this same function and we would end up
70	// in an infinite loop
71	remove_filter( 'user_has_cap', array( __CLASS__, 'user_has_cap' ), 10, 3 );
72	foreach( $caps as $cap ) {
73	if ( $groups_user->can( $cap ) ) {
74	$allcaps[$cap] = true;
75	}
76	}
77	add_filter( 'user_has_cap', array( __CLASS__, 'user_has_cap' ), 10, 3 );
78	}
79	return $allcaps;
80	}
81
82	/**
83	* Adds WordPress capabilities to Groups capabilities.
84	* Must be called explicitly.
85	* @see Groups_Controller::activate()
86	*/
87	public static function activate() {
88	global $wp_roles;
89	$capabilities = array();
90
91	if ( !isset( $wp_roles ) ) {
92	// just trigger initialization
93	get_role( 'administrator' );
94	}
95	$roles = $wp_roles->roles;
96	if ( is_array( $roles ) ) {
97	foreach ( $roles as $rolename => $atts ) {
98	if ( isset( $atts['capabilities'] ) && is_array( $atts['capabilities'] ) ) {
99	foreach ( $atts['capabilities'] as $capability => $value ) {
100	if ( !in_array( $capability, $capabilities ) ) {
101	$capabilities[] = $capability;
102	}
103	}
104	}
105	}
106	}
107	foreach ( $capabilities as $capability ) {
108	if ( !Groups_Capability::read_by_capability( $capability ) ) {
109	Groups_Capability::create( array( 'capability' => $capability ) );
110	}
111	}
112	}
113	}
114	Groups_WordPress::init();
115