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msd2/wordpress/wp-includes/class-wp-role.php

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+<?php
+/**
+ * User API: WP_Role class
+ *
+ * @package WordPress
+ * @subpackage Users
+ * @since 4.4.0
+ */
+
+/**
+ * Core class used to extend the user roles API.
+ *
+ * @since 2.0.0
+ */
+class WP_Role {
+	/**
+	 * Role name.
+	 *
+	 * @since 2.0.0
+	 * @var string
+	 */
+	public $name;
+
+	/**
+	 * List of capabilities the role contains.
+	 *
+	 * @since 2.0.0
+	 * @var array
+	 */
+	public $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
+	 *
+	 * @param string $role Role name.
+	 * @param array $capabilities List of capabilities.
+	 */
+	public function __construct( $role, $capabilities ) {
+		$this->name         = $role;
+		$this->capabilities = $capabilities;
+	}
+
+	/**
+	 * Assign role a capability.
+	 *
+	 * @since 2.0.0
+	 *
+	 * @param string $cap Capability name.
+	 * @param bool $grant Whether role has capability privilege.
+	 */
+	public function add_cap( $cap, $grant = true ) {
+		$this->capabilities[ $cap ] = $grant;
+		wp_roles()->add_cap( $this->name, $cap, $grant );
+	}
+
+	/**
+	 * Removes a capability from a role.
+	 *
+	 * This is a container for WP_Roles::remove_cap() to remove the
+	 * capability from the role. That is to say, that 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
+	 *
+	 * @param string $cap Capability name.
+	 */
+	public function remove_cap( $cap ) {
+		unset( $this->capabilities[ $cap ] );
+		wp_roles()->remove_cap( $this->name, $cap );
+	}
+
+	/**
+	 * Determines whether the role has the given capability.
+	 *
+	 * The capabilities is passed through the {@see '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
+	 *
+	 * @param string $cap Capability name.
+	 * @return bool True if the role has the given capability. False otherwise.
+	 */
+	public function has_cap( $cap ) {
+		/**
+		 * Filters which capabilities a role has.
+		 *
+		 * @since 2.0.0
+		 *
+		 * @param bool[] $capabilities Associative array of capabilities for the role.
+		 * @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;
+		}
+	}
+
+}