| 1 | <?php |
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| 2 | /** |
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| 3 | * WordPress Roles and Capabilities. |
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| 4 | * |
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| 5 | * @package WordPress |
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| 6 | * @subpackage User |
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| 7 | */ |
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| 8 | |
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| 9 | /** |
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| 10 | * WordPress User Roles. |
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| 11 | * |
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| 12 | * The role option is simple, the structure is organized by role name that store |
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| 13 | * the name in value of the 'name' key. The capabilities are stored as an array |
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| 14 | * in the value of the 'capability' key. |
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| 15 | * |
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| 16 | * <code> |
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| 17 | * array ( |
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| 18 | * 'rolename' => array ( |
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| 19 | * 'name' => 'rolename', |
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| 20 | * 'capabilities' => array() |
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| 21 | * ) |
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| 22 | * ) |
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| 23 | * </code> |
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| 24 | * |
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| 25 | * @since 2.0.0 |
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| 26 | * @package WordPress |
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| 27 | * @subpackage User |
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| 28 | */ |
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| 29 | class WP_Roles { |
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| 30 | /** |
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| 31 | * List of roles and capabilities. |
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| 32 | * |
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| 33 | * @since 2.0.0 |
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| 34 | * @access public |
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| 35 | * @var array |
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| 36 | */ |
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| 37 | var $roles; |
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| 38 | |
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| 39 | /** |
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| 40 | * List of the role objects. |
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| 41 | * |
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| 42 | * @since 2.0.0 |
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| 43 | * @access public |
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| 44 | * @var array |
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| 45 | */ |
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| 46 | var $role_objects = array(); |
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| 47 | |
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| 48 | /** |
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| 49 | * List of role names. |
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| 50 | * |
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| 51 | * @since 2.0.0 |
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| 52 | * @access public |
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| 53 | * @var array |
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| 54 | */ |
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| 55 | var $role_names = array(); |
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| 56 | |
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| 57 | /** |
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| 58 | * Option name for storing role list. |
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| 59 | * |
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| 60 | * @since 2.0.0 |
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| 61 | * @access public |
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| 62 | * @var string |
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| 63 | */ |
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| 64 | var $role_key; |
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| 65 | |
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| 66 | /** |
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| 67 | * Whether to use the database for retrieval and storage. |
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| 68 | * |
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| 69 | * @since 2.1.0 |
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| 70 | * @access public |
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| 71 | * @var bool |
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| 72 | */ |
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| 73 | var $use_db = true; |
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| 74 | |
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| 75 | /** |
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| 76 | * Constructor |
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| 77 | * |
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| 78 | * @since 2.0.0 |
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| 79 | */ |
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| 80 | function __construct() { |
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| 81 | $this->_init(); |
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| 82 | } |
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| 83 | |
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| 84 | /** |
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| 85 | * Set up the object properties. |
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| 86 | * |
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| 87 | * The role key is set to the current prefix for the $wpdb object with |
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| 88 | * 'user_roles' appended. If the $wp_user_roles global is set, then it will |
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| 89 | * be used and the role option will not be updated or used. |
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| 90 | * |
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| 91 | * @since 2.1.0 |
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| 92 | * @access protected |
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| 93 | * @uses $wpdb Used to get the database prefix. |
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| 94 | * @global array $wp_user_roles Used to set the 'roles' property value. |
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| 95 | */ |
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| 96 | function _init () { |
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| 97 | global $wpdb, $wp_user_roles; |
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| 98 | $this->role_key = $wpdb->prefix . 'user_roles'; |
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| 99 | if ( ! empty( $wp_user_roles ) ) { |
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| 100 | $this->roles = $wp_user_roles; |
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| 101 | $this->use_db = false; |
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| 102 | } else { |
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| 103 | $this->roles = get_option( $this->role_key ); |
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| 104 | } |
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| 105 | |
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| 106 | if ( empty( $this->roles ) ) |
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| 107 | return; |
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| 108 | |
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| 109 | $this->role_objects = array(); |
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| 110 | $this->role_names = array(); |
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| 111 | foreach ( (array) $this->roles as $role => $data ) { |
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| 112 | $this->role_objects[$role] = new WP_Role( $role, $this->roles[$role]['capabilities'] ); |
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| 113 | $this->role_names[$role] = $this->roles[$role]['name']; |
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| 114 | } |
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| 115 | } |
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| 116 | |
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| 117 | /** |
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| 118 | * Add role name with capabilities to list. |
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| 119 | * |
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| 120 | * Updates the list of roles, if the role doesn't already exist. |
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| 121 | * |
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| 122 | * The capabilities are defined in the following format `array( 'read' => true );` |
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| 123 | * To explicitly deny a role a capability you set the value for that capability to false. |
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| 124 | * |
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| 125 | * @since 2.0.0 |
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| 126 | * @access public |
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| 127 | * |
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| 128 | * @param string $role Role name. |
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| 129 | * @param string $display_name Role display name. |
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| 130 | * @param array $capabilities List of role capabilities in the above format. |
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| 131 | * @return null|WP_Role WP_Role object if role is added, null if already exists. |
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| 132 | */ |
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| 133 | function add_role( $role, $display_name, $capabilities = array() ) { |
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| 134 | if ( isset( $this->roles[$role] ) ) |
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| 135 | return; |
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| 136 | |
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| 137 | $this->roles[$role] = array( |
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| 138 | 'name' => $display_name, |
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| 139 | 'capabilities' => $capabilities |
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| 140 | ); |
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| 141 | if ( $this->use_db ) |
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| 142 | update_option( $this->role_key, $this->roles ); |
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| 143 | $this->role_objects[$role] = new WP_Role( $role, $capabilities ); |
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| 144 | $this->role_names[$role] = $display_name; |
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| 145 | return $this->role_objects[$role]; |
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| 146 | } |
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| 147 | |
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| 148 | /** |
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| 149 | * Remove role by name. |
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| 150 | * |
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| 151 | * @since 2.0.0 |
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| 152 | * @access public |
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| 153 | * |
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| 154 | * @param string $role Role name. |
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| 155 | */ |
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| 156 | function remove_role( $role ) { |
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| 157 | if ( ! isset( $this->role_objects[$role] ) ) |
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| 158 | return; |
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| 159 | |
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| 160 | unset( $this->role_objects[$role] ); |
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| 161 | unset( $this->role_names[$role] ); |
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| 162 | unset( $this->roles[$role] ); |
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| 163 | |
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| 164 | if ( $this->use_db ) |
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| 165 | update_option( $this->role_key, $this->roles ); |
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| 166 | } |
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| 167 | |
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| 168 | /** |
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| 169 | * Add capability to role. |
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| 170 | * |
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| 171 | * @since 2.0.0 |
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| 172 | * @access public |
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| 173 | * |
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| 174 | * @param string $role Role name. |
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| 175 | * @param string $cap Capability name. |
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| 176 | * @param bool $grant Optional, default is true. Whether role is capable of performing capability. |
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| 177 | */ |
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| 178 | function add_cap( $role, $cap, $grant = true ) { |
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| 179 | $this->roles[$role]['capabilities'][$cap] = $grant; |
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| 180 | if ( $this->use_db ) |
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| 181 | update_option( $this->role_key, $this->roles ); |
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| 182 | } |
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| 183 | |
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| 184 | /** |
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| 185 | * Remove capability from role. |
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| 186 | * |
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| 187 | * @since 2.0.0 |
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| 188 | * @access public |
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| 189 | * |
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| 190 | * @param string $role Role name. |
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| 191 | * @param string $cap Capability name. |
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| 192 | */ |
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| 193 | function remove_cap( $role, $cap ) { |
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| 194 | unset( $this->roles[$role]['capabilities'][$cap] ); |
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| 195 | if ( $this->use_db ) |
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| 196 | update_option( $this->role_key, $this->roles ); |
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| 197 | } |
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| 198 | |
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| 199 | /** |
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| 200 | * Retrieve role object by name. |
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| 201 | * |
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| 202 | * @since 2.0.0 |
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| 203 | * @access public |
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| 204 | * |
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| 205 | * @param string $role Role name. |
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| 206 | * @return object|null Null, if role does not exist. WP_Role object, if found. |
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| 207 | */ |
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| 208 | function get_role( $role ) { |
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| 209 | if ( isset( $this->role_objects[$role] ) ) |
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| 210 | return $this->role_objects[$role]; |
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| 211 | else |
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| 212 | return null; |
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| 213 | } |
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| 214 | |
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| 215 | /** |
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| 216 | * Retrieve list of role names. |
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| 217 | * |
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| 218 | * @since 2.0.0 |
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| 219 | * @access public |
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| 220 | * |
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| 221 | * @return array List of role names. |
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| 222 | */ |
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| 223 | function get_names() { |
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| 224 | return $this->role_names; |
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| 225 | } |
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| 226 | |
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| 227 | /** |
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| 228 | * Whether role name is currently in the list of available roles. |
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| 229 | * |
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| 230 | * @since 2.0.0 |
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| 231 | * @access public |
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| 232 | * |
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| 233 | * @param string $role Role name to look up. |
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| 234 | * @return bool |
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| 235 | */ |
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| 236 | function is_role( $role ) |
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| 237 | { |
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| 238 | return isset( $this->role_names[$role] ); |
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| 239 | } |
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| 240 | } |
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| 241 | |
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| 242 | /** |
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| 243 | * WordPress Role class. |
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| 244 | * |
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| 245 | * @since 2.0.0 |
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| 246 | * @package WordPress |
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| 247 | * @subpackage User |
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| 248 | */ |
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| 249 | class WP_Role { |
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| 250 | /** |
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| 251 | * Role name. |
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| 252 | * |
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| 253 | * @since 2.0.0 |
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| 254 | * @access public |
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| 255 | * @var string |
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| 256 | */ |
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| 257 | var $name; |
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| 258 | |
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| 259 | /** |
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| 260 | * List of capabilities the role contains. |
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| 261 | * |
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| 262 | * @since 2.0.0 |
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| 263 | * @access public |
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| 264 | * @var array |
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| 265 | */ |
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| 266 | var $capabilities; |
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| 267 | |
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| 268 | /** |
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| 269 | * Constructor - Set up object properties. |
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| 270 | * |
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| 271 | * The list of capabilities, must have the key as the name of the capability |
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| 272 | * and the value a boolean of whether it is granted to the role. |
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| 273 | * |
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| 274 | * @since 2.0.0 |
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| 275 | * @access public |
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| 276 | * |
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| 277 | * @param string $role Role name. |
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| 278 | * @param array $capabilities List of capabilities. |
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| 279 | */ |
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| 280 | function __construct( $role, $capabilities ) { |
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| 281 | $this->name = $role; |
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| 282 | $this->capabilities = $capabilities; |
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| 283 | } |
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| 284 | |
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| 285 | /** |
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| 286 | * Assign role a capability. |
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| 287 | * |
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| 288 | * @see WP_Roles::add_cap() Method uses implementation for role. |
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| 289 | * @since 2.0.0 |
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| 290 | * @access public |
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| 291 | * |
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| 292 | * @param string $cap Capability name. |
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| 293 | * @param bool $grant Whether role has capability privilege. |
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| 294 | */ |
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| 295 | function add_cap( $cap, $grant = true ) { |
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| 296 | global $wp_roles; |
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| 297 | |
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| 298 | if ( ! isset( $wp_roles ) ) |
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| 299 | $wp_roles = new WP_Roles(); |
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| 300 | |
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| 301 | $this->capabilities[$cap] = $grant; |
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| 302 | $wp_roles->add_cap( $this->name, $cap, $grant ); |
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| 303 | } |
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| 304 | |
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| 305 | /** |
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| 306 | * Remove capability from role. |
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| 307 | * |
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| 308 | * This is a container for {@link WP_Roles::remove_cap()} to remove the |
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| 309 | * capability from the role. That is to say, that {@link |
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| 310 | * WP_Roles::remove_cap()} implements the functionality, but it also makes |
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| 311 | * sense to use this class, because you don't need to enter the role name. |
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| 312 | * |
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| 313 | * @since 2.0.0 |
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| 314 | * @access public |
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| 315 | * |
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| 316 | * @param string $cap Capability name. |
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| 317 | */ |
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| 318 | function remove_cap( $cap ) { |
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| 319 | global $wp_roles; |
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| 320 | |
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| 321 | if ( ! isset( $wp_roles ) ) |
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| 322 | $wp_roles = new WP_Roles(); |
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| 323 | |
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| 324 | unset( $this->capabilities[$cap] ); |
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| 325 | $wp_roles->remove_cap( $this->name, $cap ); |
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| 326 | } |
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| 327 | |
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| 328 | /** |
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| 329 | * Whether role has capability. |
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| 330 | * |
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| 331 | * The capabilities is passed through the 'role_has_cap' filter. The first |
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| 332 | * parameter for the hook is the list of capabilities the class has |
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| 333 | * assigned. The second parameter is the capability name to look for. The |
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| 334 | * third and final parameter for the hook is the role name. |
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| 335 | * |
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| 336 | * @since 2.0.0 |
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| 337 | * @access public |
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| 338 | * |
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| 339 | * @param string $cap Capability name. |
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| 340 | * @return bool True, if user has capability. False, if doesn't have capability. |
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| 341 | */ |
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| 342 | function has_cap( $cap ) { |
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| 343 | $capabilities = apply_filters( 'role_has_cap', $this->capabilities, $cap, $this->name ); |
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| 344 | if ( !empty( $capabilities[$cap] ) ) |
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| 345 | return $capabilities[$cap]; |
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| 346 | else |
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| 347 | return false; |
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| 348 | } |
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| 349 | |
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| 350 | } |
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| 351 | |
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| 352 | /** |
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| 353 | * WordPress User class. |
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| 354 | * |
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| 355 | * @since 2.0.0 |
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| 356 | * @package WordPress |
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| 357 | * @subpackage User |
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| 358 | */ |
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| 359 | class WP_User { |
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| 360 | /** |
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| 361 | * User data container. |
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| 362 | * |
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| 363 | * @since 2.0.0 |
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| 364 | * @access private |
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| 365 | * @var array |
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| 366 | */ |
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| 367 | var $data; |
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| 368 | |
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| 369 | /** |
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| 370 | * The user's ID. |
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| 371 | * |
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| 372 | * @since 2.1.0 |
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| 373 | * @access public |
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| 374 | * @var int |
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| 375 | */ |
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| 376 | var $ID = 0; |
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| 377 | |
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| 378 | /** |
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| 379 | * The individual capabilities the user has been given. |
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| 380 | * |
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| 381 | * @since 2.0.0 |
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| 382 | * @access public |
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| 383 | * @var array |
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| 384 | */ |
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| 385 | var $caps = array(); |
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| 386 | |
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| 387 | /** |
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| 388 | * User metadata option name. |
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| 389 | * |
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| 390 | * @since 2.0.0 |
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| 391 | * @access public |
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| 392 | * @var string |
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| 393 | */ |
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| 394 | var $cap_key; |
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| 395 | |
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| 396 | /** |
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| 397 | * The roles the user is part of. |
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| 398 | * |
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| 399 | * @since 2.0.0 |
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| 400 | * @access public |
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| 401 | * @var array |
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| 402 | */ |
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| 403 | var $roles = array(); |
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| 404 | |
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| 405 | /** |
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| 406 | * All capabilities the user has, including individual and role based. |
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| 407 | * |
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| 408 | * @since 2.0.0 |
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| 409 | * @access public |
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| 410 | * @var array |
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| 411 | */ |
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| 412 | var $allcaps = array(); |
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| 413 | |
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| 414 | /** |
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| 415 | * The filter context applied to user data fields. |
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| 416 | * |
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| 417 | * @since 2.9.0 |
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| 418 | * @access private |
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| 419 | * @var string |
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| 420 | */ |
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| 421 | var $filter = null; |
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| 422 | |
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| 423 | private static $back_compat_keys; |
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| 424 | |
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| 425 | /** |
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| 426 | * Constructor |
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| 427 | * |
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| 428 | * Retrieves the userdata and passes it to {@link WP_User::init()}. |
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| 429 | * |
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| 430 | * @since 2.0.0 |
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| 431 | * @access public |
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| 432 | * |
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| 433 | * @param int|string $id User's ID |
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| 434 | * @param string $name Optional. User's username |
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| 435 | * @param int $blog_id Optional Blog ID, defaults to current blog. |
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| 436 | * @return WP_User |
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| 437 | */ |
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| 438 | function __construct( $id = 0, $name = '', $blog_id = '' ) { |
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| 439 | if ( ! isset( self::$back_compat_keys ) ) { |
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| 440 | $prefix = $GLOBALS['wpdb']->prefix; |
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| 441 | self::$back_compat_keys = array( |
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| 442 | 'user_firstname' => 'first_name', |
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| 443 | 'user_lastname' => 'last_name', |
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| 444 | 'user_description' => 'description', |
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| 445 | 'user_level' => $prefix . 'user_level', |
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| 446 | $prefix . 'usersettings' => $prefix . 'user-settings', |
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| 447 | $prefix . 'usersettingstime' => $prefix . 'user-settings-time', |
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| 448 | ); |
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| 449 | } |
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| 450 | |
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| 451 | if ( ! empty( $id ) && ! is_numeric( $id ) ) { |
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| 452 | $name = $id; |
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| 453 | $id = 0; |
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| 454 | } |
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| 455 | |
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| 456 | if ( $id ) |
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| 457 | $data = self::get_data_by( 'id', $id ); |
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| 458 | else |
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| 459 | $data = self::get_data_by( 'login', $name ); |
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| 460 | |
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| 461 | if ( $data ) |
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| 462 | $this->init( $data, $blog_id ); |
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| 463 | } |
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| 464 | |
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| 465 | /** |
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| 466 | * Sets up object properties, including capabilities. |
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| 467 | * |
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| 468 | * @param object $data User DB row object |
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| 469 | * @param int $blog_id Optional. The blog id to initialize for |
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| 470 | */ |
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| 471 | function init( $data, $blog_id = '' ) { |
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| 472 | $this->data = $data; |
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| 473 | $this->ID = (int) $data->ID; |
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| 474 | |
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| 475 | $this->for_blog( $blog_id ); |
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| 476 | } |
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| 477 | |
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| 478 | /** |
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| 479 | * Return only the main user fields |
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| 480 | * |
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| 481 | * @since 3.3.0 |
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| 482 | * |
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| 483 | * @param string $field The field to query against: 'id', 'slug', 'email' or 'login' |
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| 484 | * @param string|int $value The field value |
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| 485 | * @return object Raw user object |
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| 486 | */ |
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| 487 | static function get_data_by( $field, $value ) { |
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| 488 | global $wpdb; |
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| 489 | |
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| 490 | if ( 'id' == $field ) { |
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| 491 | // Make sure the value is numeric to avoid casting objects, for example, |
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| 492 | // to int 1. |
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| 493 | if ( ! is_numeric( $value ) ) |
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| 494 | return false; |
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| 495 | $value = absint( $value ); |
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| 496 | } else { |
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| 497 | $value = trim( $value ); |
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| 498 | } |
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| 499 | |
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| 500 | if ( !$value ) |
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| 501 | return false; |
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| 502 | |
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| 503 | switch ( $field ) { |
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| 504 | case 'id': |
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| 505 | $user_id = $value; |
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| 506 | $db_field = 'ID'; |
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| 507 | break; |
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| 508 | case 'slug': |
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| 509 | $user_id = wp_cache_get($value, 'userslugs'); |
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| 510 | $db_field = 'user_nicename'; |
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| 511 | break; |
|---|
| 512 | case 'email': |
|---|
| 513 | $user_id = wp_cache_get($value, 'useremail'); |
|---|
| 514 | $db_field = 'user_email'; |
|---|
| 515 | break; |
|---|
| 516 | case 'login': |
|---|
| 517 | $value = sanitize_user( $value ); |
|---|
| 518 | $user_id = wp_cache_get($value, 'userlogins'); |
|---|
| 519 | $db_field = 'user_login'; |
|---|
| 520 | break; |
|---|
| 521 | default: |
|---|
| 522 | return false; |
|---|
| 523 | } |
|---|
| 524 | |
|---|
| 525 | if ( false !== $user_id ) { |
|---|
| 526 | if ( $user = wp_cache_get( $user_id, 'users' ) ) |
|---|
| 527 | return $user; |
|---|
| 528 | } |
|---|
| 529 | |
|---|
| 530 | if ( !$user = $wpdb->get_row( $wpdb->prepare( |
|---|
| 531 | "SELECT * FROM $wpdb->users WHERE $db_field = %s", $value |
|---|
| 532 | ) ) ) |
|---|
| 533 | return false; |
|---|
| 534 | |
|---|
| 535 | update_user_caches( $user ); |
|---|
| 536 | |
|---|
| 537 | return $user; |
|---|
| 538 | } |
|---|
| 539 | |
|---|
| 540 | /** |
|---|
| 541 | * Magic method for checking the existence of a certain custom field |
|---|
| 542 | * |
|---|
| 543 | * @since 3.3.0 |
|---|
| 544 | */ |
|---|
| 545 | function __isset( $key ) { |
|---|
| 546 | if ( 'id' == $key ) { |
|---|
| 547 | _deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) ); |
|---|
| 548 | $key = 'ID'; |
|---|
| 549 | } |
|---|
| 550 | |
|---|
| 551 | if ( isset( $this->data->$key ) ) |
|---|
| 552 | return true; |
|---|
| 553 | |
|---|
| 554 | if ( isset( self::$back_compat_keys[ $key ] ) ) |
|---|
| 555 | $key = self::$back_compat_keys[ $key ]; |
|---|
| 556 | |
|---|
| 557 | return metadata_exists( 'user', $this->ID, $key ); |
|---|
| 558 | } |
|---|
| 559 | |
|---|
| 560 | /** |
|---|
| 561 | * Magic method for accessing custom fields |
|---|
| 562 | * |
|---|
| 563 | * @since 3.3.0 |
|---|
| 564 | */ |
|---|
| 565 | function __get( $key ) { |
|---|
| 566 | if ( 'id' == $key ) { |
|---|
| 567 | _deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) ); |
|---|
| 568 | return $this->ID; |
|---|
| 569 | } |
|---|
| 570 | |
|---|
| 571 | if ( isset( $this->data->$key ) ) { |
|---|
| 572 | $value = $this->data->$key; |
|---|
| 573 | } else { |
|---|
| 574 | if ( isset( self::$back_compat_keys[ $key ] ) ) |
|---|
| 575 | $key = self::$back_compat_keys[ $key ]; |
|---|
| 576 | $value = get_user_meta( $this->ID, $key, true ); |
|---|
| 577 | } |
|---|
| 578 | |
|---|
| 579 | if ( $this->filter ) { |
|---|
| 580 | $value = sanitize_user_field( $key, $value, $this->ID, $this->filter ); |
|---|
| 581 | } |
|---|
| 582 | |
|---|
| 583 | return $value; |
|---|
| 584 | } |
|---|
| 585 | |
|---|
| 586 | /** |
|---|
| 587 | * Magic method for setting custom fields |
|---|
| 588 | * |
|---|
| 589 | * @since 3.3.0 |
|---|
| 590 | */ |
|---|
| 591 | function __set( $key, $value ) { |
|---|
| 592 | if ( 'id' == $key ) { |
|---|
| 593 | _deprecated_argument( 'WP_User->id', '2.1', __( 'Use <code>WP_User->ID</code> instead.' ) ); |
|---|
| 594 | $this->ID = $value; |
|---|
| 595 | return; |
|---|
| 596 | } |
|---|
| 597 | |
|---|
| 598 | $this->data->$key = $value; |
|---|
| 599 | } |
|---|
| 600 | |
|---|
| 601 | /** |
|---|
| 602 | * Retrieve the value of a property or meta key. |
|---|
| 603 | * |
|---|
| 604 | * Retrieves from the users and usermeta table. |
|---|
| 605 | * |
|---|
| 606 | * @since 3.3.0 |
|---|
| 607 | * |
|---|
| 608 | * @param string $key Property |
|---|
| 609 | */ |
|---|
| 610 | function get( $key ) { |
|---|
| 611 | return $this->__get( $key ); |
|---|
| 612 | } |
|---|
| 613 | |
|---|
| 614 | /** |
|---|
| 615 | * Determine whether a property or meta key is set |
|---|
| 616 | * |
|---|
| 617 | * Consults the users and usermeta tables. |
|---|
| 618 | * |
|---|
| 619 | * @since 3.3.0 |
|---|
| 620 | * |
|---|
| 621 | * @param string $key Property |
|---|
| 622 | */ |
|---|
| 623 | function has_prop( $key ) { |
|---|
| 624 | return $this->__isset( $key ); |
|---|
| 625 | } |
|---|
| 626 | |
|---|
| 627 | /** |
|---|
| 628 | * Set up capability object properties. |
|---|
| 629 | * |
|---|
| 630 | * Will set the value for the 'cap_key' property to current database table |
|---|
| 631 | * prefix, followed by 'capabilities'. Will then check to see if the |
|---|
| 632 | * property matching the 'cap_key' exists and is an array. If so, it will be |
|---|
| 633 | * used. |
|---|
| 634 | * |
|---|
| 635 | * @access protected |
|---|
| 636 | * @since 2.1.0 |
|---|
| 637 | * |
|---|
| 638 | * @param string $cap_key Optional capability key |
|---|
| 639 | */ |
|---|
| 640 | function _init_caps( $cap_key = '' ) { |
|---|
| 641 | global $wpdb; |
|---|
| 642 | |
|---|
| 643 | if ( empty($cap_key) ) |
|---|
| 644 | $this->cap_key = $wpdb->prefix . 'capabilities'; |
|---|
| 645 | else |
|---|
| 646 | $this->cap_key = $cap_key; |
|---|
| 647 | |
|---|
| 648 | $this->caps = get_user_meta( $this->ID, $this->cap_key, true ); |
|---|
| 649 | |
|---|
| 650 | if ( ! is_array( $this->caps ) ) |
|---|
| 651 | $this->caps = array(); |
|---|
| 652 | |
|---|
| 653 | $this->get_role_caps(); |
|---|
| 654 | } |
|---|
| 655 | |
|---|
| 656 | /** |
|---|
| 657 | * Retrieve all of the role capabilities and merge with individual capabilities. |
|---|
| 658 | * |
|---|
| 659 | * All of the capabilities of the roles the user belongs to are merged with |
|---|
| 660 | * the users individual roles. This also means that the user can be denied |
|---|
| 661 | * specific roles that their role might have, but the specific user isn't |
|---|
| 662 | * granted permission to. |
|---|
| 663 | * |
|---|
| 664 | * @since 2.0.0 |
|---|
| 665 | * @uses $wp_roles |
|---|
| 666 | * @access public |
|---|
| 667 | */ |
|---|
| 668 | function get_role_caps() { |
|---|
| 669 | global $wp_roles; |
|---|
| 670 | |
|---|
| 671 | if ( ! isset( $wp_roles ) ) |
|---|
| 672 | $wp_roles = new WP_Roles(); |
|---|
| 673 | |
|---|
| 674 | //Filter out caps that are not role names and assign to $this->roles |
|---|
| 675 | if ( is_array( $this->caps ) ) |
|---|
| 676 | $this->roles = array_filter( array_keys( $this->caps ), array( &$wp_roles, 'is_role' ) ); |
|---|
| 677 | |
|---|
| 678 | //Build $allcaps from role caps, overlay user's $caps |
|---|
| 679 | $this->allcaps = array(); |
|---|
| 680 | foreach ( (array) $this->roles as $role ) { |
|---|
| 681 | $the_role = $wp_roles->get_role( $role ); |
|---|
| 682 | $this->allcaps = array_merge( (array) $this->allcaps, (array) $the_role->capabilities ); |
|---|
| 683 | } |
|---|
| 684 | $this->allcaps = array_merge( (array) $this->allcaps, (array) $this->caps ); |
|---|
| 685 | } |
|---|
| 686 | |
|---|
| 687 | /** |
|---|
| 688 | * Add role to user. |
|---|
| 689 | * |
|---|
| 690 | * Updates the user's meta data option with capabilities and roles. |
|---|
| 691 | * |
|---|
| 692 | * @since 2.0.0 |
|---|
| 693 | * @access public |
|---|
| 694 | * |
|---|
| 695 | * @param string $role Role name. |
|---|
| 696 | */ |
|---|
| 697 | function add_role( $role ) { |
|---|
| 698 | $this->caps[$role] = true; |
|---|
| 699 | update_user_meta( $this->ID, $this->cap_key, $this->caps ); |
|---|
| 700 | $this->get_role_caps(); |
|---|
| 701 | $this->update_user_level_from_caps(); |
|---|
| 702 | } |
|---|
| 703 | |
|---|
| 704 | /** |
|---|
| 705 | * Remove role from user. |
|---|
| 706 | * |
|---|
| 707 | * @since 2.0.0 |
|---|
| 708 | * @access public |
|---|
| 709 | * |
|---|
| 710 | * @param string $role Role name. |
|---|
| 711 | */ |
|---|
| 712 | function remove_role( $role ) { |
|---|
| 713 | if ( !in_array($role, $this->roles) ) |
|---|
| 714 | return; |
|---|
| 715 | unset( $this->caps[$role] ); |
|---|
| 716 | update_user_meta( $this->ID, $this->cap_key, $this->caps ); |
|---|
| 717 | $this->get_role_caps(); |
|---|
| 718 | $this->update_user_level_from_caps(); |
|---|
| 719 | } |
|---|
| 720 | |
|---|
| 721 | /** |
|---|
| 722 | * Set the role of the user. |
|---|
| 723 | * |
|---|
| 724 | * This will remove the previous roles of the user and assign the user the |
|---|
| 725 | * new one. You can set the role to an empty string and it will remove all |
|---|
| 726 | * of the roles from the user. |
|---|
| 727 | * |
|---|
| 728 | * @since 2.0.0 |
|---|
| 729 | * @access public |
|---|
| 730 | * |
|---|
| 731 | * @param string $role Role name. |
|---|
| 732 | */ |
|---|
| 733 | function set_role( $role ) { |
|---|
| 734 | foreach ( (array) $this->roles as $oldrole ) |
|---|
| 735 | unset( $this->caps[$oldrole] ); |
|---|
| 736 | |
|---|
| 737 | if ( 1 == count( $this->roles ) && $role == $this->roles[0] ) |
|---|
| 738 | return; |
|---|
| 739 | |
|---|
| 740 | if ( !empty( $role ) ) { |
|---|
| 741 | $this->caps[$role] = true; |
|---|
| 742 | $this->roles = array( $role => true ); |
|---|
| 743 | } else { |
|---|
| 744 | $this->roles = false; |
|---|
| 745 | } |
|---|
| 746 | update_user_meta( $this->ID, $this->cap_key, $this->caps ); |
|---|
| 747 | $this->get_role_caps(); |
|---|
| 748 | $this->update_user_level_from_caps(); |
|---|
| 749 | do_action( 'set_user_role', $this->ID, $role ); |
|---|
| 750 | } |
|---|
| 751 | |
|---|
| 752 | /** |
|---|
| 753 | * Choose the maximum level the user has. |
|---|
| 754 | * |
|---|
| 755 | * Will compare the level from the $item parameter against the $max |
|---|
| 756 | * parameter. If the item is incorrect, then just the $max parameter value |
|---|
| 757 | * will be returned. |
|---|
| 758 | * |
|---|
| 759 | * Used to get the max level based on the capabilities the user has. This |
|---|
| 760 | * is also based on roles, so if the user is assigned the Administrator role |
|---|
| 761 | * then the capability 'level_10' will exist and the user will get that |
|---|
| 762 | * value. |
|---|
| 763 | * |
|---|
| 764 | * @since 2.0.0 |
|---|
| 765 | * @access public |
|---|
| 766 | * |
|---|
| 767 | * @param int $max Max level of user. |
|---|
| 768 | * @param string $item Level capability name. |
|---|
| 769 | * @return int Max Level. |
|---|
| 770 | */ |
|---|
| 771 | function level_reduction( $max, $item ) { |
|---|
| 772 | if ( preg_match( '/^level_(10|[0-9])$/i', $item, $matches ) ) { |
|---|
| 773 | $level = intval( $matches[1] ); |
|---|
| 774 | return max( $max, $level ); |
|---|
| 775 | } else { |
|---|
| 776 | return $max; |
|---|
| 777 | } |
|---|
| 778 | } |
|---|
| 779 | |
|---|
| 780 | /** |
|---|
| 781 | * Update the maximum user level for the user. |
|---|
| 782 | * |
|---|
| 783 | * Updates the 'user_level' user metadata (includes prefix that is the |
|---|
| 784 | * database table prefix) with the maximum user level. Gets the value from |
|---|
| 785 | * the all of the capabilities that the user has. |
|---|
| 786 | * |
|---|
| 787 | * @since 2.0.0 |
|---|
| 788 | * @access public |
|---|
| 789 | */ |
|---|
| 790 | function update_user_level_from_caps() { |
|---|
| 791 | global $wpdb; |
|---|
| 792 | $this->user_level = array_reduce( array_keys( $this->allcaps ), array( $this, 'level_reduction' ), 0 ); |
|---|
| 793 | update_user_meta( $this->ID, $wpdb->prefix . 'user_level', $this->user_level ); |
|---|
| 794 | } |
|---|
| 795 | |
|---|
| 796 | /** |
|---|
| 797 | * Add capability and grant or deny access to capability. |
|---|
| 798 | * |
|---|
| 799 | * @since 2.0.0 |
|---|
| 800 | * @access public |
|---|
| 801 | * |
|---|
| 802 | * @param string $cap Capability name. |
|---|
| 803 | * @param bool $grant Whether to grant capability to user. |
|---|
| 804 | */ |
|---|
| 805 | function add_cap( $cap, $grant = true ) { |
|---|
| 806 | $this->caps[$cap] = $grant; |
|---|
| 807 | update_user_meta( $this->ID, $this->cap_key, $this->caps ); |
|---|
| 808 | } |
|---|
| 809 | |
|---|
| 810 | /** |
|---|
| 811 | * Remove capability from user. |
|---|
| 812 | * |
|---|
| 813 | * @since 2.0.0 |
|---|
| 814 | * @access public |
|---|
| 815 | * |
|---|
| 816 | * @param string $cap Capability name. |
|---|
| 817 | */ |
|---|
| 818 | function remove_cap( $cap ) { |
|---|
| 819 | if ( empty( $this->caps[$cap] ) ) |
|---|
| 820 | return; |
|---|
| 821 | unset( $this->caps[$cap] ); |
|---|
| 822 | update_user_meta( $this->ID, $this->cap_key, $this->caps ); |
|---|
| 823 | } |
|---|
| 824 | |
|---|
| 825 | /** |
|---|
| 826 | * Remove all of the capabilities of the user. |
|---|
| 827 | * |
|---|
| 828 | * @since 2.1.0 |
|---|
| 829 | * @access public |
|---|
| 830 | */ |
|---|
| 831 | function remove_all_caps() { |
|---|
| 832 | global $wpdb; |
|---|
| 833 | $this->caps = array(); |
|---|
| 834 | delete_user_meta( $this->ID, $this->cap_key ); |
|---|
| 835 | delete_user_meta( $this->ID, $wpdb->prefix . 'user_level' ); |
|---|
| 836 | $this->get_role_caps(); |
|---|
| 837 | } |
|---|
| 838 | |
|---|
| 839 | /** |
|---|
| 840 | * Whether user has capability or role name. |
|---|
| 841 | * |
|---|
| 842 | * This is useful for looking up whether the user has a specific role |
|---|
| 843 | * assigned to the user. The second optional parameter can also be used to |
|---|
| 844 | * check for capabilities against a specific post. |
|---|
| 845 | * |
|---|
| 846 | * @since 2.0.0 |
|---|
| 847 | * @access public |
|---|
| 848 | * |
|---|
| 849 | * @param string|int $cap Capability or role name to search. |
|---|
| 850 | * @param int $post_id Optional. Post ID to check capability against specific post. |
|---|
| 851 | * @return bool True, if user has capability; false, if user does not have capability. |
|---|
| 852 | */ |
|---|
| 853 | function has_cap( $cap ) { |
|---|
| 854 | if ( is_numeric( $cap ) ) { |
|---|
| 855 | _deprecated_argument( __FUNCTION__, '2.0', __('Usage of user levels by plugins and themes is deprecated. Use roles and capabilities instead.') ); |
|---|
| 856 | $cap = $this->translate_level_to_cap( $cap ); |
|---|
| 857 | } |
|---|
| 858 | |
|---|
| 859 | $args = array_slice( func_get_args(), 1 ); |
|---|
| 860 | $args = array_merge( array( $cap, $this->ID ), $args ); |
|---|
| 861 | $caps = call_user_func_array( 'map_meta_cap', $args ); |
|---|
| 862 | |
|---|
| 863 | // Multisite super admin has all caps by definition, Unless specifically denied. |
|---|
| 864 | if ( is_multisite() && is_super_admin( $this->ID ) ) { |
|---|
| 865 | if ( in_array('do_not_allow', $caps) ) |
|---|
| 866 | return false; |
|---|
| 867 | return true; |
|---|
| 868 | } |
|---|
| 869 | |
|---|
| 870 | // Must have ALL requested caps |
|---|
| 871 | $capabilities = apply_filters( 'user_has_cap', $this->allcaps, $caps, $args ); |
|---|
| 872 | $capabilities['exist'] = true; // Everyone is allowed to exist |
|---|
| 873 | foreach ( (array) $caps as $cap ) { |
|---|
| 874 | if ( empty( $capabilities[ $cap ] ) ) |
|---|
| 875 | return false; |
|---|
| 876 | } |
|---|
| 877 | |
|---|
| 878 | return true; |
|---|
| 879 | } |
|---|
| 880 | |
|---|
| 881 | /** |
|---|
| 882 | * Convert numeric level to level capability name. |
|---|
| 883 | * |
|---|
| 884 | * Prepends 'level_' to level number. |
|---|
| 885 | * |
|---|
| 886 | * @since 2.0.0 |
|---|
| 887 | * @access public |
|---|
| 888 | * |
|---|
| 889 | * @param int $level Level number, 1 to 10. |
|---|
| 890 | * @return string |
|---|
| 891 | */ |
|---|
| 892 | function translate_level_to_cap( $level ) { |
|---|
| 893 | return 'level_' . $level; |
|---|
| 894 | } |
|---|
| 895 | |
|---|
| 896 | /** |
|---|
| 897 | * Set the blog to operate on. Defaults to the current blog. |
|---|
| 898 | * |
|---|
| 899 | * @since 3.0.0 |
|---|
| 900 | * |
|---|
| 901 | * @param int $blog_id Optional Blog ID, defaults to current blog. |
|---|
| 902 | */ |
|---|
| 903 | function for_blog( $blog_id = '' ) { |
|---|
| 904 | global $wpdb; |
|---|
| 905 | if ( ! empty( $blog_id ) ) |
|---|
| 906 | $cap_key = $wpdb->get_blog_prefix( $blog_id ) . 'capabilities'; |
|---|
| 907 | else |
|---|
| 908 | $cap_key = ''; |
|---|
| 909 | $this->_init_caps( $cap_key ); |
|---|
| 910 | } |
|---|
| 911 | } |
|---|
| 912 | |
|---|
| 913 | /** |
|---|
| 914 | * Map meta capabilities to primitive capabilities. |
|---|
| 915 | * |
|---|
| 916 | * This does not actually compare whether the user ID has the actual capability, |
|---|
| 917 | * just what the capability or capabilities are. Meta capability list value can |
|---|
| 918 | * be 'delete_user', 'edit_user', 'remove_user', 'promote_user', 'delete_post', |
|---|
| 919 | * 'delete_page', 'edit_post', 'edit_page', 'read_post', or 'read_page'. |
|---|
| 920 | * |
|---|
| 921 | * @since 2.0.0 |
|---|
| 922 | * |
|---|
| 923 | * @param string $cap Capability name. |
|---|
| 924 | * @param int $user_id User ID. |
|---|
| 925 | * @return array Actual capabilities for meta capability. |
|---|
| 926 | */ |
|---|
| 927 | function map_meta_cap( $cap, $user_id ) { |
|---|
| 928 | $args = array_slice( func_get_args(), 2 ); |
|---|
| 929 | $caps = array(); |
|---|
| 930 | |
|---|
| 931 | switch ( $cap ) { |
|---|
| 932 | case 'remove_user': |
|---|
| 933 | $caps[] = 'remove_users'; |
|---|
| 934 | break; |
|---|
| 935 | case 'promote_user': |
|---|
| 936 | $caps[] = 'promote_users'; |
|---|
| 937 | break; |
|---|
| 938 | case 'edit_user': |
|---|
| 939 | // Allow user to edit itself |
|---|
| 940 | if ( isset( $args[0] ) && $user_id == $args[0] ) |
|---|
| 941 | break; |
|---|
| 942 | // Fall through |
|---|
| 943 | case 'edit_users': |
|---|
| 944 | // If multisite these caps are allowed only for super admins. |
|---|
| 945 | if ( is_multisite() && !is_super_admin( $user_id ) ) |
|---|
| 946 | $caps[] = 'do_not_allow'; |
|---|
| 947 | else |
|---|
| 948 | $caps[] = 'edit_users'; // Explicit due to primitive fall through |
|---|
| 949 | break; |
|---|
| 950 | case 'delete_post': |
|---|
| 951 | case 'delete_page': |
|---|
| 952 | $author_data = get_userdata( $user_id ); |
|---|
| 953 | $post = get_post( $args[0] ); |
|---|
| 954 | |
|---|
| 955 | if ( 'revision' == $post->post_type ) { |
|---|
| 956 | $post = get_post( $post->post_parent ); |
|---|
| 957 | } |
|---|
| 958 | |
|---|
| 959 | $post_type = get_post_type_object( $post->post_type ); |
|---|
| 960 | |
|---|
| 961 | if ( ! $post_type->map_meta_cap ) { |
|---|
| 962 | $caps[] = $post_type->cap->$cap; |
|---|
| 963 | // Prior to 3.1 we would re-call map_meta_cap here. |
|---|
| 964 | if ( 'delete_post' == $cap ) |
|---|
| 965 | $cap = $post_type->cap->$cap; |
|---|
| 966 | break; |
|---|
| 967 | } |
|---|
| 968 | |
|---|
| 969 | if ( '' != $post->post_author ) { |
|---|
| 970 | $post_author_data = get_userdata( $post->post_author ); |
|---|
| 971 | } else { |
|---|
| 972 | // No author set yet, so default to current user for cap checks. |
|---|
| 973 | $post_author_data = $author_data; |
|---|
| 974 | } |
|---|
| 975 | |
|---|
| 976 | // If the user is the author... |
|---|
| 977 | if ( is_object( $post_author_data ) && $user_id == $post_author_data->ID ) { |
|---|
| 978 | // If the post is published... |
|---|
| 979 | if ( 'publish' == $post->post_status ) { |
|---|
| 980 | $caps[] = $post_type->cap->delete_published_posts; |
|---|
| 981 | } elseif ( 'trash' == $post->post_status ) { |
|---|
| 982 | if ('publish' == get_post_meta($post->ID, '_wp_trash_meta_status', true) ) |
|---|
| 983 | $caps[] = $post_type->cap->delete_published_posts; |
|---|
| 984 | } else { |
|---|
| 985 | // If the post is draft... |
|---|
| 986 | $caps[] = $post_type->cap->delete_posts; |
|---|
| 987 | } |
|---|
| 988 | } else { |
|---|
| 989 | // The user is trying to edit someone else's post. |
|---|
| 990 | $caps[] = $post_type->cap->delete_others_posts; |
|---|
| 991 | // The post is published, extra cap required. |
|---|
| 992 | if ( 'publish' == $post->post_status ) |
|---|
| 993 | $caps[] = $post_type->cap->delete_published_posts; |
|---|
| 994 | elseif ( 'private' == $post->post_status ) |
|---|
| 995 | $caps[] = $post_type->cap->delete_private_posts; |
|---|
| 996 | } |
|---|
| 997 | break; |
|---|
| 998 | // edit_post breaks down to edit_posts, edit_published_posts, or |
|---|
| 999 | // edit_others_posts |
|---|
| 1000 | case 'edit_post': |
|---|
| 1001 | case 'edit_page': |
|---|
| 1002 | $author_data = get_userdata( $user_id ); |
|---|
| 1003 | $post = get_post( $args[0] ); |
|---|
| 1004 | |
|---|
| 1005 | if ( 'revision' == $post->post_type ) { |
|---|
| 1006 | $post = get_post( $post->post_parent ); |
|---|
| 1007 | } |
|---|
| 1008 | |
|---|
| 1009 | $post_type = get_post_type_object( $post->post_type ); |
|---|
| 1010 | |
|---|
| 1011 | if ( ! $post_type->map_meta_cap ) { |
|---|
| 1012 | $caps[] = $post_type->cap->$cap; |
|---|
| 1013 | // Prior to 3.1 we would re-call map_meta_cap here. |
|---|
| 1014 | if ( 'edit_post' == $cap ) |
|---|
| 1015 | $cap = $post_type->cap->$cap; |
|---|
| 1016 | break; |
|---|
| 1017 | } |
|---|
| 1018 | |
|---|
| 1019 | if ( '' != $post->post_author ) { |
|---|
| 1020 | $post_author_data = get_userdata( $post->post_author ); |
|---|
| 1021 | } else { |
|---|
| 1022 | // No author set yet, so default to current user for cap checks. |
|---|
| 1023 | $post_author_data = $author_data; |
|---|
| 1024 | } |
|---|
| 1025 | |
|---|
| 1026 | //echo "current user id : $user_id, post author id: " . $post_author_data->ID . "<br />"; |
|---|
| 1027 | // If the user is the author... |
|---|
| 1028 | if ( is_object( $post_author_data ) && $user_id == $post_author_data->ID ) { |
|---|
| 1029 | // If the post is published... |
|---|
| 1030 | if ( 'publish' == $post->post_status ) { |
|---|
| 1031 | $caps[] = $post_type->cap->edit_published_posts; |
|---|
| 1032 | } elseif ( 'trash' == $post->post_status ) { |
|---|
| 1033 | if ('publish' == get_post_meta($post->ID, '_wp_trash_meta_status', true) ) |
|---|
| 1034 | $caps[] = $post_type->cap->edit_published_posts; |
|---|
| 1035 | } else { |
|---|
| 1036 | // If the post is draft... |
|---|
| 1037 | $caps[] = $post_type->cap->edit_posts; |
|---|
| 1038 | } |
|---|
| 1039 | } else { |
|---|
| 1040 | // The user is trying to edit someone else's post. |
|---|
| 1041 | $caps[] = $post_type->cap->edit_others_posts; |
|---|
| 1042 | // The post is published, extra cap required. |
|---|
| 1043 | if ( 'publish' == $post->post_status ) |
|---|
| 1044 | $caps[] = $post_type->cap->edit_published_posts; |
|---|
| 1045 | elseif ( 'private' == $post->post_status ) |
|---|
| 1046 | $caps[] = $post_type->cap->edit_private_posts; |
|---|
| 1047 | } |
|---|
| 1048 | break; |
|---|
| 1049 | case 'read_post': |
|---|
| 1050 | case 'read_page': |
|---|
| 1051 | $author_data = get_userdata( $user_id ); |
|---|
| 1052 | $post = get_post( $args[0] ); |
|---|
| 1053 | |
|---|
| 1054 | if ( 'revision' == $post->post_type ) { |
|---|
| 1055 | $post = get_post( $post->post_parent ); |
|---|
| 1056 | } |
|---|
| 1057 | |
|---|
| 1058 | $post_type = get_post_type_object( $post->post_type ); |
|---|
| 1059 | |
|---|
| 1060 | if ( ! $post_type->map_meta_cap ) { |
|---|
| 1061 | $caps[] = $post_type->cap->$cap; |
|---|
| 1062 | // Prior to 3.1 we would re-call map_meta_cap here. |
|---|
| 1063 | if ( 'read_post' == $cap ) |
|---|
| 1064 | $cap = $post_type->cap->$cap; |
|---|
| 1065 | break; |
|---|
| 1066 | } |
|---|
| 1067 | |
|---|
| 1068 | if ( 'private' != $post->post_status ) { |
|---|
| 1069 | $caps[] = $post_type->cap->read; |
|---|
| 1070 | break; |
|---|
| 1071 | } |
|---|
| 1072 | |
|---|
| 1073 | if ( '' != $post->post_author ) { |
|---|
| 1074 | $post_author_data = get_userdata( $post->post_author ); |
|---|
| 1075 | } else { |
|---|
| 1076 | // No author set yet, so default to current user for cap checks. |
|---|
| 1077 | $post_author_data = $author_data; |
|---|
| 1078 | } |
|---|
| 1079 | |
|---|
| 1080 | if ( is_object( $post_author_data ) && $user_id == $post_author_data->ID ) |
|---|
| 1081 | $caps[] = $post_type->cap->read; |
|---|
| 1082 | else |
|---|
| 1083 | $caps[] = $post_type->cap->read_private_posts; |
|---|
| 1084 | break; |
|---|
| 1085 | case 'edit_post_meta': |
|---|
| 1086 | case 'delete_post_meta': |
|---|
| 1087 | case 'add_post_meta': |
|---|
| 1088 | $post = get_post( $args[0] ); |
|---|
| 1089 | $post_type_object = get_post_type_object( $post->post_type ); |
|---|
| 1090 | $caps = map_meta_cap( $post_type_object->cap->edit_post, $user_id, $post->ID ); |
|---|
| 1091 | |
|---|
| 1092 | $meta_key = isset( $args[ 1 ] ) ? $args[ 1 ] : false; |
|---|
| 1093 | |
|---|
| 1094 | if ( $meta_key && has_filter( "auth_post_meta_{$meta_key}" ) ) { |
|---|
| 1095 | $allowed = apply_filters( "auth_post_meta_{$meta_key}", false, $meta_key, $post->ID, $user_id, $cap, $caps ); |
|---|
| 1096 | if ( ! $allowed ) |
|---|
| 1097 | $caps[] = $cap; |
|---|
| 1098 | } elseif ( $meta_key && is_protected_meta( $meta_key, 'post' ) ) { |
|---|
| 1099 | $caps[] = $cap; |
|---|
| 1100 | } |
|---|
| 1101 | break; |
|---|
| 1102 | case 'edit_comment': |
|---|
| 1103 | $comment = get_comment( $args[0] ); |
|---|
| 1104 | $post = get_post( $comment->comment_post_ID ); |
|---|
| 1105 | $post_type_object = get_post_type_object( $post->post_type ); |
|---|
| 1106 | |
|---|
| 1107 | $caps = map_meta_cap( $post_type_object->cap->edit_post, $user_id, $post->ID ); |
|---|
| 1108 | break; |
|---|
| 1109 | case 'unfiltered_upload': |
|---|
| 1110 | if ( defined('ALLOW_UNFILTERED_UPLOADS') && ALLOW_UNFILTERED_UPLOADS && ( !is_multisite() || is_super_admin( $user_id ) ) ) |
|---|
| 1111 | $caps[] = $cap; |
|---|
| 1112 | else |
|---|
| 1113 | $caps[] = 'do_not_allow'; |
|---|
| 1114 | break; |
|---|
| 1115 | case 'edit_files': |
|---|
| 1116 | case 'edit_plugins': |
|---|
| 1117 | case 'edit_themes': |
|---|
| 1118 | if ( defined('DISALLOW_FILE_EDIT') && DISALLOW_FILE_EDIT ) { |
|---|
| 1119 | $caps[] = 'do_not_allow'; |
|---|
| 1120 | break; |
|---|
| 1121 | } |
|---|
| 1122 | // Fall through if not DISALLOW_FILE_EDIT. |
|---|
| 1123 | case 'update_plugins': |
|---|
| 1124 | case 'delete_plugins': |
|---|
| 1125 | case 'install_plugins': |
|---|
| 1126 | case 'update_themes': |
|---|
| 1127 | case 'delete_themes': |
|---|
| 1128 | case 'install_themes': |
|---|
| 1129 | case 'update_core': |
|---|
| 1130 | // Disallow anything that creates, deletes, or edits core, plugin, or theme files. |
|---|
| 1131 | // Files in uploads are excepted. |
|---|
| 1132 | if ( defined('DISALLOW_FILE_MODS') && DISALLOW_FILE_MODS ) { |
|---|
| 1133 | $caps[] = 'do_not_allow'; |
|---|
| 1134 | break; |
|---|
| 1135 | } |
|---|
| 1136 | // Fall through if not DISALLOW_FILE_MODS. |
|---|
| 1137 | case 'unfiltered_html': |
|---|
| 1138 | // Disallow unfiltered_html for all users, even admins and super admins. |
|---|
| 1139 | if ( defined('DISALLOW_UNFILTERED_HTML') && DISALLOW_UNFILTERED_HTML ) { |
|---|
| 1140 | $caps[] = 'do_not_allow'; |
|---|
| 1141 | break; |
|---|
| 1142 | } |
|---|
| 1143 | // Fall through if not DISALLOW_UNFILTERED_HTML |
|---|
| 1144 | case 'delete_user': |
|---|
| 1145 | case 'delete_users': |
|---|
| 1146 | // If multisite these caps are allowed only for super admins. |
|---|
| 1147 | if ( is_multisite() && !is_super_admin( $user_id ) ) { |
|---|
| 1148 | $caps[] = 'do_not_allow'; |
|---|
| 1149 | } else { |
|---|
| 1150 | if ( 'delete_user' == $cap ) |
|---|
| 1151 | $cap = 'delete_users'; |
|---|
| 1152 | $caps[] = $cap; |
|---|
| 1153 | } |
|---|
| 1154 | break; |
|---|
| 1155 | case 'create_users': |
|---|
| 1156 | if ( !is_multisite() ) |
|---|
| 1157 | $caps[] = $cap; |
|---|
| 1158 | elseif ( is_super_admin() || get_site_option( 'add_new_users' ) ) |
|---|
| 1159 | $caps[] = $cap; |
|---|
| 1160 | else |
|---|
| 1161 | $caps[] = 'do_not_allow'; |
|---|
| 1162 | break; |
|---|
| 1163 | default: |
|---|
| 1164 | // Handle meta capabilities for custom post types. |
|---|
| 1165 | $post_type_meta_caps = _post_type_meta_capabilities(); |
|---|
| 1166 | if ( isset( $post_type_meta_caps[ $cap ] ) ) { |
|---|
| 1167 | $args = array_merge( array( $post_type_meta_caps[ $cap ], $user_id ), $args ); |
|---|
| 1168 | return call_user_func_array( 'map_meta_cap', $args ); |
|---|
| 1169 | } |
|---|
| 1170 | |
|---|
| 1171 | // If no meta caps match, return the original cap. |
|---|
| 1172 | $caps[] = $cap; |
|---|
| 1173 | } |
|---|
| 1174 | |
|---|
| 1175 | return apply_filters('map_meta_cap', $caps, $cap, $user_id, $args); |
|---|
| 1176 | } |
|---|
| 1177 | |
|---|
| 1178 | /** |
|---|
| 1179 | * Whether current user has capability or role. |
|---|
| 1180 | * |
|---|
| 1181 | * @since 2.0.0 |
|---|
| 1182 | * |
|---|
| 1183 | * @param string $capability Capability or role name. |
|---|
| 1184 | * @return bool |
|---|
| 1185 | */ |
|---|
| 1186 | function current_user_can( $capability ) { |
|---|
| 1187 | $current_user = wp_get_current_user(); |
|---|
| 1188 | |
|---|
| 1189 | if ( empty( $current_user ) ) |
|---|
| 1190 | return false; |
|---|
| 1191 | |
|---|
| 1192 | $args = array_slice( func_get_args(), 1 ); |
|---|
| 1193 | $args = array_merge( array( $capability ), $args ); |
|---|
| 1194 | |
|---|
| 1195 | return call_user_func_array( array( $current_user, 'has_cap' ), $args ); |
|---|
| 1196 | } |
|---|
| 1197 | |
|---|
| 1198 | /** |
|---|
| 1199 | * Whether current user has a capability or role for a given blog. |
|---|
| 1200 | * |
|---|
| 1201 | * @since 3.0.0 |
|---|
| 1202 | * |
|---|
| 1203 | * @param int $blog_id Blog ID |
|---|
| 1204 | * @param string $capability Capability or role name. |
|---|
| 1205 | * @return bool |
|---|
| 1206 | */ |
|---|
| 1207 | function current_user_can_for_blog( $blog_id, $capability ) { |
|---|
| 1208 | $current_user = wp_get_current_user(); |
|---|
| 1209 | |
|---|
| 1210 | if ( empty( $current_user ) ) |
|---|
| 1211 | return false; |
|---|
| 1212 | |
|---|
| 1213 | // Create new object to avoid stomping the global current_user. |
|---|
| 1214 | $user = new WP_User( $current_user->ID) ; |
|---|
| 1215 | |
|---|
| 1216 | // Set the blog id. @todo add blog id arg to WP_User constructor? |
|---|
| 1217 | $user->for_blog( $blog_id ); |
|---|
| 1218 | |
|---|
| 1219 | $args = array_slice( func_get_args(), 2 ); |
|---|
| 1220 | $args = array_merge( array( $capability ), $args ); |
|---|
| 1221 | |
|---|
| 1222 | return call_user_func_array( array( &$user, 'has_cap' ), $args ); |
|---|
| 1223 | } |
|---|
| 1224 | |
|---|
| 1225 | /** |
|---|
| 1226 | * Whether author of supplied post has capability or role. |
|---|
| 1227 | * |
|---|
| 1228 | * @since 2.9.0 |
|---|
| 1229 | * |
|---|
| 1230 | * @param int|object $post Post ID or post object. |
|---|
| 1231 | * @param string $capability Capability or role name. |
|---|
| 1232 | * @return bool |
|---|
| 1233 | */ |
|---|
| 1234 | function author_can( $post, $capability ) { |
|---|
| 1235 | if ( !$post = get_post($post) ) |
|---|
| 1236 | return false; |
|---|
| 1237 | |
|---|
| 1238 | $author = new WP_User( $post->post_author ); |
|---|
| 1239 | |
|---|
| 1240 | if ( empty( $author->ID ) ) |
|---|
| 1241 | return false; |
|---|
| 1242 | |
|---|
| 1243 | $args = array_slice( func_get_args(), 2 ); |
|---|
| 1244 | $args = array_merge( array( $capability ), $args ); |
|---|
| 1245 | |
|---|
| 1246 | return call_user_func_array( array( &$author, 'has_cap' ), $args ); |
|---|
| 1247 | } |
|---|
| 1248 | |
|---|
| 1249 | /** |
|---|
| 1250 | * Whether a particular user has capability or role. |
|---|
| 1251 | * |
|---|
| 1252 | * @since 3.1.0 |
|---|
| 1253 | * |
|---|
| 1254 | * @param int|object $user User ID or object. |
|---|
| 1255 | * @param string $capability Capability or role name. |
|---|
| 1256 | * @return bool |
|---|
| 1257 | */ |
|---|
| 1258 | function user_can( $user, $capability ) { |
|---|
| 1259 | if ( ! is_object( $user ) ) |
|---|
| 1260 | $user = new WP_User( $user ); |
|---|
| 1261 | |
|---|
| 1262 | if ( ! $user || ! $user->ID ) |
|---|
| 1263 | return false; |
|---|
| 1264 | |
|---|
| 1265 | $args = array_slice( func_get_args(), 2 ); |
|---|
| 1266 | $args = array_merge( array( $capability ), $args ); |
|---|
| 1267 | |
|---|
| 1268 | return call_user_func_array( array( &$user, 'has_cap' ), $args ); |
|---|
| 1269 | } |
|---|
| 1270 | |
|---|
| 1271 | /** |
|---|
| 1272 | * Retrieve role object. |
|---|
| 1273 | * |
|---|
| 1274 | * @see WP_Roles::get_role() Uses method to retrieve role object. |
|---|
| 1275 | * @since 2.0.0 |
|---|
| 1276 | * |
|---|
| 1277 | * @param string $role Role name. |
|---|
| 1278 | * @return object |
|---|
| 1279 | */ |
|---|
| 1280 | function get_role( $role ) { |
|---|
| 1281 | global $wp_roles; |
|---|
| 1282 | |
|---|
| 1283 | if ( ! isset( $wp_roles ) ) |
|---|
| 1284 | $wp_roles = new WP_Roles(); |
|---|
| 1285 | |
|---|
| 1286 | return $wp_roles->get_role( $role ); |
|---|
| 1287 | } |
|---|
| 1288 | |
|---|
| 1289 | /** |
|---|
| 1290 | * Add role, if it does not exist. |
|---|
| 1291 | * |
|---|
| 1292 | * @see WP_Roles::add_role() Uses method to add role. |
|---|
| 1293 | * @since 2.0.0 |
|---|
| 1294 | * |
|---|
| 1295 | * @param string $role Role name. |
|---|
| 1296 | * @param string $display_name Display name for role. |
|---|
| 1297 | * @param array $capabilities List of capabilities, e.g. array( 'edit_posts' => true, 'delete_posts' => false ); |
|---|
| 1298 | * @return null|WP_Role WP_Role object if role is added, null if already exists. |
|---|
| 1299 | */ |
|---|
| 1300 | function add_role( $role, $display_name, $capabilities = array() ) { |
|---|
| 1301 | global $wp_roles; |
|---|
| 1302 | |
|---|
| 1303 | if ( ! isset( $wp_roles ) ) |
|---|
| 1304 | $wp_roles = new WP_Roles(); |
|---|
| 1305 | |
|---|
| 1306 | return $wp_roles->add_role( $role, $display_name, $capabilities ); |
|---|
| 1307 | } |
|---|
| 1308 | |
|---|
| 1309 | /** |
|---|
| 1310 | * Remove role, if it exists. |
|---|
| 1311 | * |
|---|
| 1312 | * @see WP_Roles::remove_role() Uses method to remove role. |
|---|
| 1313 | * @since 2.0.0 |
|---|
| 1314 | * |
|---|
| 1315 | * @param string $role Role name. |
|---|
| 1316 | * @return null |
|---|
| 1317 | */ |
|---|
| 1318 | function remove_role( $role ) { |
|---|
| 1319 | global $wp_roles; |
|---|
| 1320 | |
|---|
| 1321 | if ( ! isset( $wp_roles ) ) |
|---|
| 1322 | $wp_roles = new WP_Roles(); |
|---|
| 1323 | |
|---|
| 1324 | return $wp_roles->remove_role( $role ); |
|---|
| 1325 | } |
|---|
| 1326 | |
|---|
| 1327 | /** |
|---|
| 1328 | * Retrieve a list of super admins. |
|---|
| 1329 | * |
|---|
| 1330 | * @since 3.0.0 |
|---|
| 1331 | * |
|---|
| 1332 | * @uses $super_admins Super admins global variable, if set. |
|---|
| 1333 | * |
|---|
| 1334 | * @return array List of super admin logins |
|---|
| 1335 | */ |
|---|
| 1336 | function get_super_admins() { |
|---|
| 1337 | global $super_admins; |
|---|
| 1338 | |
|---|
| 1339 | if ( isset($super_admins) ) |
|---|
| 1340 | return $super_admins; |
|---|
| 1341 | else |
|---|
| 1342 | return get_site_option( 'site_admins', array('admin') ); |
|---|
| 1343 | } |
|---|
| 1344 | |
|---|
| 1345 | /** |
|---|
| 1346 | * Determine if user is a site admin. |
|---|
| 1347 | * |
|---|
| 1348 | * @since 3.0.0 |
|---|
| 1349 | * |
|---|
| 1350 | * @param int $user_id (Optional) The ID of a user. Defaults to the current user. |
|---|
| 1351 | * @return bool True if the user is a site admin. |
|---|
| 1352 | */ |
|---|
| 1353 | function is_super_admin( $user_id = false ) { |
|---|
| 1354 | if ( $user_id ) |
|---|
| 1355 | $user = new WP_User( $user_id ); |
|---|
| 1356 | else |
|---|
| 1357 | $user = wp_get_current_user(); |
|---|
| 1358 | |
|---|
| 1359 | if ( empty( $user->ID ) ) |
|---|
| 1360 | return false; |
|---|
| 1361 | |
|---|
| 1362 | if ( is_multisite() ) { |
|---|
| 1363 | $super_admins = get_super_admins(); |
|---|
| 1364 | if ( is_array( $super_admins ) && in_array( $user->user_login, $super_admins ) ) |
|---|
| 1365 | return true; |
|---|
| 1366 | } else { |
|---|
| 1367 | if ( $user->has_cap('delete_users') ) |
|---|
| 1368 | return true; |
|---|
| 1369 | } |
|---|
| 1370 | |
|---|
| 1371 | return false; |
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| 1372 | } |
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