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461d17576c
A user is required to have the `manage_privacy_options` capability in order to determine which page is set as the privacy policy (the `wp_page_for_privacy_policy`). Given that, it doesn't make sense to allow users without that capability to edit or delete the page. A similar situation exists with the `page_for_posts` and `page_on_front` options, but Editors are allowed to edit those pages. The reason that this situation is different is because it is more likely that an administrator will want to restrict modifications to the privacy policy, than it is that they will want to allow modifications. Modifications to the policy often require specialized knowledge of local laws, and can have implications for compliance with those laws. Props dlh, desrosj. Fixes #44079. Built from https://develop.svn.wordpress.org/trunk@43286 git-svn-id: http://core.svn.wordpress.org/trunk@43115 1a063a9b-81f0-0310-95a4-ce76da25c4cd
948 lines
28 KiB
PHP
948 lines
28 KiB
PHP
<?php
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/**
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* Core User Role & Capabilities API
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*
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* @package WordPress
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* @subpackage Users
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*/
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/**
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* Map meta capabilities to primitive capabilities.
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*
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* This does not actually compare whether the user ID has the actual capability,
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* just what the capability or capabilities are. Meta capability list value can
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* be 'delete_user', 'edit_user', 'remove_user', 'promote_user', 'delete_post',
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* 'delete_page', 'edit_post', 'edit_page', 'read_post', or 'read_page'.
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*
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* @since 2.0.0
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*
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* @global array $post_type_meta_caps Used to get post type meta capabilities.
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*
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* @param string $cap Capability name.
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* @param int $user_id User ID.
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* @param int $object_id Optional. ID of the specific object to check against if `$cap` is a "meta" cap.
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* "Meta" capabilities, e.g. 'edit_post', 'edit_user', etc., are capabilities used
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* by map_meta_cap() to map to other "primitive" capabilities, e.g. 'edit_posts',
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* 'edit_others_posts', etc. The parameter is accessed via func_get_args().
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* @return array Actual capabilities for meta capability.
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*/
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function map_meta_cap( $cap, $user_id ) {
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$args = array_slice( func_get_args(), 2 );
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$caps = array();
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switch ( $cap ) {
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case 'remove_user':
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// In multisite the user must be a super admin to remove themselves.
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if ( isset( $args[0] ) && $user_id == $args[0] && ! is_super_admin( $user_id ) ) {
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$caps[] = 'do_not_allow';
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} else {
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$caps[] = 'remove_users';
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}
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break;
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case 'promote_user':
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case 'add_users':
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$caps[] = 'promote_users';
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break;
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case 'edit_user':
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case 'edit_users':
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// Allow user to edit itself
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if ( 'edit_user' == $cap && isset( $args[0] ) && $user_id == $args[0] ) {
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break;
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}
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// In multisite the user must have manage_network_users caps. If editing a super admin, the user must be a super admin.
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if ( is_multisite() && ( ( ! is_super_admin( $user_id ) && 'edit_user' === $cap && is_super_admin( $args[0] ) ) || ! user_can( $user_id, 'manage_network_users' ) ) ) {
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$caps[] = 'do_not_allow';
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} else {
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$caps[] = 'edit_users'; // edit_user maps to edit_users.
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}
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break;
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case 'delete_post':
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case 'delete_page':
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$post = get_post( $args[0] );
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if ( ! $post ) {
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$caps[] = 'do_not_allow';
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break;
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}
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if ( 'revision' == $post->post_type ) {
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$post = get_post( $post->post_parent );
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if ( ! $post ) {
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$caps[] = 'do_not_allow';
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break;
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}
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}
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if ( ( get_option( 'page_for_posts' ) == $post->ID ) || ( get_option( 'page_on_front' ) == $post->ID ) ) {
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$caps[] = 'manage_options';
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break;
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}
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$post_type = get_post_type_object( $post->post_type );
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if ( ! $post_type ) {
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/* translators: 1: post type, 2: capability name */
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_doing_it_wrong( __FUNCTION__, sprintf( __( 'The post type %1$s is not registered, so it may not be reliable to check the capability "%2$s" against a post of that type.' ), $post->post_type, $cap ), '4.4.0' );
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$caps[] = 'edit_others_posts';
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break;
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}
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if ( ! $post_type->map_meta_cap ) {
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$caps[] = $post_type->cap->$cap;
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// Prior to 3.1 we would re-call map_meta_cap here.
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if ( 'delete_post' == $cap ) {
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$cap = $post_type->cap->$cap;
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}
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break;
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}
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// If the post author is set and the user is the author...
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if ( $post->post_author && $user_id == $post->post_author ) {
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// If the post is published or scheduled...
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if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) {
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$caps[] = $post_type->cap->delete_published_posts;
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} elseif ( 'trash' == $post->post_status ) {
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$status = get_post_meta( $post->ID, '_wp_trash_meta_status', true );
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if ( in_array( $status, array( 'publish', 'future' ), true ) ) {
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$caps[] = $post_type->cap->delete_published_posts;
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} else {
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$caps[] = $post_type->cap->delete_posts;
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}
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} else {
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// If the post is draft...
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$caps[] = $post_type->cap->delete_posts;
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}
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} else {
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// The user is trying to edit someone else's post.
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$caps[] = $post_type->cap->delete_others_posts;
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// The post is published or scheduled, extra cap required.
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if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) {
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$caps[] = $post_type->cap->delete_published_posts;
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} elseif ( 'private' == $post->post_status ) {
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$caps[] = $post_type->cap->delete_private_posts;
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}
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}
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/*
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* Setting the privacy policy page requires `manage_privacy_options`,
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* so deleting it should require that too.
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*/
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if ( (int) get_option( 'wp_page_for_privacy_policy' ) === $post->ID ) {
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$caps = array_merge( $caps, map_meta_cap( 'manage_privacy_options', $user_id ) );
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}
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break;
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// edit_post breaks down to edit_posts, edit_published_posts, or
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// edit_others_posts
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case 'edit_post':
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case 'edit_page':
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$post = get_post( $args[0] );
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if ( ! $post ) {
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$caps[] = 'do_not_allow';
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break;
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}
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if ( 'revision' == $post->post_type ) {
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$post = get_post( $post->post_parent );
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if ( ! $post ) {
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$caps[] = 'do_not_allow';
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break;
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}
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}
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$post_type = get_post_type_object( $post->post_type );
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if ( ! $post_type ) {
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/* translators: 1: post type, 2: capability name */
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_doing_it_wrong( __FUNCTION__, sprintf( __( 'The post type %1$s is not registered, so it may not be reliable to check the capability "%2$s" against a post of that type.' ), $post->post_type, $cap ), '4.4.0' );
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$caps[] = 'edit_others_posts';
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break;
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}
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if ( ! $post_type->map_meta_cap ) {
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$caps[] = $post_type->cap->$cap;
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// Prior to 3.1 we would re-call map_meta_cap here.
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if ( 'edit_post' == $cap ) {
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$cap = $post_type->cap->$cap;
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}
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break;
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}
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// If the post author is set and the user is the author...
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if ( $post->post_author && $user_id == $post->post_author ) {
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// If the post is published or scheduled...
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if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) {
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$caps[] = $post_type->cap->edit_published_posts;
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} elseif ( 'trash' == $post->post_status ) {
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$status = get_post_meta( $post->ID, '_wp_trash_meta_status', true );
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if ( in_array( $status, array( 'publish', 'future' ), true ) ) {
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$caps[] = $post_type->cap->edit_published_posts;
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} else {
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$caps[] = $post_type->cap->edit_posts;
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}
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} else {
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// If the post is draft...
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$caps[] = $post_type->cap->edit_posts;
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}
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} else {
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// The user is trying to edit someone else's post.
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$caps[] = $post_type->cap->edit_others_posts;
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// The post is published or scheduled, extra cap required.
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if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) {
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$caps[] = $post_type->cap->edit_published_posts;
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} elseif ( 'private' == $post->post_status ) {
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$caps[] = $post_type->cap->edit_private_posts;
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}
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}
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/*
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* Setting the privacy policy page requires `manage_privacy_options`,
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* so editing it should require that too.
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*/
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if ( (int) get_option( 'wp_page_for_privacy_policy' ) === $post->ID ) {
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$caps = array_merge( $caps, map_meta_cap( 'manage_privacy_options', $user_id ) );
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}
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break;
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case 'read_post':
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case 'read_page':
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$post = get_post( $args[0] );
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if ( ! $post ) {
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$caps[] = 'do_not_allow';
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break;
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}
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if ( 'revision' == $post->post_type ) {
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$post = get_post( $post->post_parent );
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if ( ! $post ) {
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$caps[] = 'do_not_allow';
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break;
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}
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}
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$post_type = get_post_type_object( $post->post_type );
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if ( ! $post_type ) {
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/* translators: 1: post type, 2: capability name */
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_doing_it_wrong( __FUNCTION__, sprintf( __( 'The post type %1$s is not registered, so it may not be reliable to check the capability "%2$s" against a post of that type.' ), $post->post_type, $cap ), '4.4.0' );
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$caps[] = 'edit_others_posts';
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break;
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}
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if ( ! $post_type->map_meta_cap ) {
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$caps[] = $post_type->cap->$cap;
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// Prior to 3.1 we would re-call map_meta_cap here.
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if ( 'read_post' == $cap ) {
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$cap = $post_type->cap->$cap;
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}
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break;
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}
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$status_obj = get_post_status_object( $post->post_status );
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if ( $status_obj->public ) {
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$caps[] = $post_type->cap->read;
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break;
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}
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if ( $post->post_author && $user_id == $post->post_author ) {
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$caps[] = $post_type->cap->read;
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} elseif ( $status_obj->private ) {
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$caps[] = $post_type->cap->read_private_posts;
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} else {
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$caps = map_meta_cap( 'edit_post', $user_id, $post->ID );
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}
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break;
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case 'publish_post':
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$post = get_post( $args[0] );
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if ( ! $post ) {
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$caps[] = 'do_not_allow';
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break;
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}
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$post_type = get_post_type_object( $post->post_type );
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if ( ! $post_type ) {
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/* translators: 1: post type, 2: capability name */
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_doing_it_wrong( __FUNCTION__, sprintf( __( 'The post type %1$s is not registered, so it may not be reliable to check the capability "%2$s" against a post of that type.' ), $post->post_type, $cap ), '4.4.0' );
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$caps[] = 'edit_others_posts';
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break;
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}
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$caps[] = $post_type->cap->publish_posts;
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break;
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case 'edit_post_meta':
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case 'delete_post_meta':
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case 'add_post_meta':
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case 'edit_comment_meta':
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case 'delete_comment_meta':
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case 'add_comment_meta':
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case 'edit_term_meta':
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case 'delete_term_meta':
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case 'add_term_meta':
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case 'edit_user_meta':
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case 'delete_user_meta':
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case 'add_user_meta':
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list( $_, $object_type, $_ ) = explode( '_', $cap );
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$object_id = (int) $args[0];
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switch ( $object_type ) {
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case 'post':
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$post = get_post( $object_id );
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if ( ! $post ) {
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break;
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}
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$sub_type = get_post_type( $post );
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break;
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case 'comment':
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$comment = get_comment( $object_id );
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if ( ! $comment ) {
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break;
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}
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$sub_type = empty( $comment->comment_type ) ? 'comment' : $comment->comment_type;
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break;
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case 'term':
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$term = get_term( $object_id );
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if ( ! $term instanceof WP_Term ) {
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break;
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}
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$sub_type = $term->taxonomy;
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break;
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case 'user':
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$user = get_user_by( 'id', $object_id );
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if ( ! $user ) {
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break;
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}
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$sub_type = 'user';
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break;
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}
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if ( empty( $sub_type ) ) {
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$caps[] = 'do_not_allow';
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break;
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}
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$caps = map_meta_cap( "edit_{$object_type}", $user_id, $object_id );
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$meta_key = isset( $args[1] ) ? $args[1] : false;
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$has_filter = has_filter( "auth_{$object_type}_meta_{$meta_key}" ) || has_filter( "auth_{$object_type}_{$sub_type}_meta_{$meta_key}" );
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if ( $meta_key && $has_filter ) {
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/**
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* Filters whether the user is allowed to edit meta for specific object types.
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*
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* Return true to have the mapped meta caps from `edit_{$object_type}` apply.
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*
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* The dynamic portion of the hook name, `$object_type` refers to the object type being filtered.
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* The dynamic portion of the hook name, `$meta_key`, refers to the meta key passed to map_meta_cap().
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*
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* @since 3.3.0 As `auth_post_meta_{$meta_key}`.
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* @since 4.6.0
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*
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* @param bool $allowed Whether the user can add the object meta. Default false.
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* @param string $meta_key The meta key.
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* @param int $object_id Object ID.
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* @param int $user_id User ID.
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* @param string $cap Capability name.
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* @param string[] $caps Array of the user's capabilities.
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*/
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$allowed = apply_filters( "auth_{$object_type}_meta_{$meta_key}", false, $meta_key, $object_id, $user_id, $cap, $caps );
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/**
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* Filters whether the user is allowed to edit meta for specific object types/subtypes.
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*
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* Return true to have the mapped meta caps from `edit_{$object_type}` apply.
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*
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* The dynamic portion of the hook name, `$object_type` refers to the object type being filtered.
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* The dynamic portion of the hook name, `$sub_type` refers to the object subtype being filtered.
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* The dynamic portion of the hook name, `$meta_key`, refers to the meta key passed to map_meta_cap().
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*
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* @since 4.6.0 As `auth_post_{$post_type}_meta_{$meta_key}`.
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* @since 4.7.0
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*
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* @param bool $allowed Whether the user can add the object meta. Default false.
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* @param string $meta_key The meta key.
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* @param int $object_id Object ID.
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* @param int $user_id User ID.
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* @param string $cap Capability name.
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* @param string[] $caps Array of the user's capabilities.
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*/
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$allowed = apply_filters( "auth_{$object_type}_{$sub_type}_meta_{$meta_key}", $allowed, $meta_key, $object_id, $user_id, $cap, $caps );
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if ( ! $allowed ) {
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$caps[] = $cap;
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}
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} elseif ( $meta_key && is_protected_meta( $meta_key, $object_type ) ) {
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$caps[] = $cap;
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}
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break;
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case 'edit_comment':
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$comment = get_comment( $args[0] );
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if ( ! $comment ) {
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$caps[] = 'do_not_allow';
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break;
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}
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$post = get_post( $comment->comment_post_ID );
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/*
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* If the post doesn't exist, we have an orphaned comment.
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* Fall back to the edit_posts capability, instead.
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*/
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if ( $post ) {
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$caps = map_meta_cap( 'edit_post', $user_id, $post->ID );
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} else {
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$caps = map_meta_cap( 'edit_posts', $user_id );
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}
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break;
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case 'unfiltered_upload':
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if ( defined( 'ALLOW_UNFILTERED_UPLOADS' ) && ALLOW_UNFILTERED_UPLOADS && ( ! is_multisite() || is_super_admin( $user_id ) ) ) {
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$caps[] = $cap;
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} else {
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$caps[] = 'do_not_allow';
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}
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break;
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case 'edit_css':
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case 'unfiltered_html':
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// Disallow unfiltered_html for all users, even admins and super admins.
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if ( defined( 'DISALLOW_UNFILTERED_HTML' ) && DISALLOW_UNFILTERED_HTML ) {
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$caps[] = 'do_not_allow';
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} elseif ( is_multisite() && ! is_super_admin( $user_id ) ) {
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$caps[] = 'do_not_allow';
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} else {
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$caps[] = 'unfiltered_html';
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}
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break;
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case 'edit_files':
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|
case 'edit_plugins':
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|
case 'edit_themes':
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// Disallow the file editors.
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if ( defined( 'DISALLOW_FILE_EDIT' ) && DISALLOW_FILE_EDIT ) {
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$caps[] = 'do_not_allow';
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} elseif ( ! wp_is_file_mod_allowed( 'capability_edit_themes' ) ) {
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$caps[] = 'do_not_allow';
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} elseif ( is_multisite() && ! is_super_admin( $user_id ) ) {
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$caps[] = 'do_not_allow';
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} else {
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$caps[] = $cap;
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}
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break;
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case 'update_plugins':
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case 'delete_plugins':
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case 'install_plugins':
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|
case 'upload_plugins':
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case 'update_themes':
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|
case 'delete_themes':
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|
case 'install_themes':
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|
case 'upload_themes':
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case 'update_core':
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// Disallow anything that creates, deletes, or updates core, plugin, or theme files.
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// Files in uploads are excepted.
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if ( ! wp_is_file_mod_allowed( 'capability_update_core' ) ) {
|
|
$caps[] = 'do_not_allow';
|
|
} elseif ( is_multisite() && ! is_super_admin( $user_id ) ) {
|
|
$caps[] = 'do_not_allow';
|
|
} elseif ( 'upload_themes' === $cap ) {
|
|
$caps[] = 'install_themes';
|
|
} elseif ( 'upload_plugins' === $cap ) {
|
|
$caps[] = 'install_plugins';
|
|
} else {
|
|
$caps[] = $cap;
|
|
}
|
|
break;
|
|
case 'install_languages':
|
|
case 'update_languages':
|
|
if ( ! wp_is_file_mod_allowed( 'can_install_language_pack' ) ) {
|
|
$caps[] = 'do_not_allow';
|
|
} elseif ( is_multisite() && ! is_super_admin( $user_id ) ) {
|
|
$caps[] = 'do_not_allow';
|
|
} else {
|
|
$caps[] = 'install_languages';
|
|
}
|
|
break;
|
|
case 'activate_plugins':
|
|
case 'deactivate_plugins':
|
|
case 'activate_plugin':
|
|
case 'deactivate_plugin':
|
|
$caps[] = 'activate_plugins';
|
|
if ( is_multisite() ) {
|
|
// update_, install_, and delete_ are handled above with is_super_admin().
|
|
$menu_perms = get_site_option( 'menu_items', array() );
|
|
if ( empty( $menu_perms['plugins'] ) ) {
|
|
$caps[] = 'manage_network_plugins';
|
|
}
|
|
}
|
|
break;
|
|
case 'delete_user':
|
|
case 'delete_users':
|
|
// If multisite only super admins can delete users.
|
|
if ( is_multisite() && ! is_super_admin( $user_id ) ) {
|
|
$caps[] = 'do_not_allow';
|
|
} else {
|
|
$caps[] = 'delete_users'; // delete_user maps to delete_users.
|
|
}
|
|
break;
|
|
case 'create_users':
|
|
if ( ! is_multisite() ) {
|
|
$caps[] = $cap;
|
|
} elseif ( is_super_admin( $user_id ) || get_site_option( 'add_new_users' ) ) {
|
|
$caps[] = $cap;
|
|
} else {
|
|
$caps[] = 'do_not_allow';
|
|
}
|
|
break;
|
|
case 'manage_links':
|
|
if ( get_option( 'link_manager_enabled' ) ) {
|
|
$caps[] = $cap;
|
|
} else {
|
|
$caps[] = 'do_not_allow';
|
|
}
|
|
break;
|
|
case 'customize':
|
|
$caps[] = 'edit_theme_options';
|
|
break;
|
|
case 'delete_site':
|
|
if ( is_multisite() ) {
|
|
$caps[] = 'manage_options';
|
|
} else {
|
|
$caps[] = 'do_not_allow';
|
|
}
|
|
break;
|
|
case 'edit_term':
|
|
case 'delete_term':
|
|
case 'assign_term':
|
|
$term_id = (int) $args[0];
|
|
$term = get_term( $term_id );
|
|
if ( ! $term || is_wp_error( $term ) ) {
|
|
$caps[] = 'do_not_allow';
|
|
break;
|
|
}
|
|
|
|
$tax = get_taxonomy( $term->taxonomy );
|
|
if ( ! $tax ) {
|
|
$caps[] = 'do_not_allow';
|
|
break;
|
|
}
|
|
|
|
if ( 'delete_term' === $cap && ( $term->term_id == get_option( 'default_' . $term->taxonomy ) ) ) {
|
|
$caps[] = 'do_not_allow';
|
|
break;
|
|
}
|
|
|
|
$taxo_cap = $cap . 's';
|
|
|
|
$caps = map_meta_cap( $tax->cap->$taxo_cap, $user_id, $term_id );
|
|
|
|
break;
|
|
case 'manage_post_tags':
|
|
case 'edit_categories':
|
|
case 'edit_post_tags':
|
|
case 'delete_categories':
|
|
case 'delete_post_tags':
|
|
$caps[] = 'manage_categories';
|
|
break;
|
|
case 'assign_categories':
|
|
case 'assign_post_tags':
|
|
$caps[] = 'edit_posts';
|
|
break;
|
|
case 'create_sites':
|
|
case 'delete_sites':
|
|
case 'manage_network':
|
|
case 'manage_sites':
|
|
case 'manage_network_users':
|
|
case 'manage_network_plugins':
|
|
case 'manage_network_themes':
|
|
case 'manage_network_options':
|
|
case 'upgrade_network':
|
|
$caps[] = $cap;
|
|
break;
|
|
case 'setup_network':
|
|
if ( is_multisite() ) {
|
|
$caps[] = 'manage_network_options';
|
|
} else {
|
|
$caps[] = 'manage_options';
|
|
}
|
|
break;
|
|
case 'upgrade_php':
|
|
if ( is_multisite() && ! is_super_admin( $user_id ) ) {
|
|
$caps[] = 'do_not_allow';
|
|
} else {
|
|
$caps[] = 'update_core';
|
|
}
|
|
break;
|
|
case 'export_others_personal_data':
|
|
case 'erase_others_personal_data':
|
|
case 'manage_privacy_options':
|
|
$caps[] = is_multisite() ? 'manage_network' : 'manage_options';
|
|
break;
|
|
default:
|
|
// Handle meta capabilities for custom post types.
|
|
global $post_type_meta_caps;
|
|
if ( isset( $post_type_meta_caps[ $cap ] ) ) {
|
|
$args = array_merge( array( $post_type_meta_caps[ $cap ], $user_id ), $args );
|
|
return call_user_func_array( 'map_meta_cap', $args );
|
|
}
|
|
|
|
// If no meta caps match, return the original cap.
|
|
$caps[] = $cap;
|
|
}
|
|
|
|
/**
|
|
* Filters a user's capabilities depending on specific context and/or privilege.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string[] $caps Array of the user's capabilities.
|
|
* @param string $cap Capability name.
|
|
* @param int $user_id The user ID.
|
|
* @param array $args Adds the context to the cap. Typically the object ID.
|
|
*/
|
|
return apply_filters( 'map_meta_cap', $caps, $cap, $user_id, $args );
|
|
}
|
|
|
|
/**
|
|
* Whether the current user has a specific capability.
|
|
*
|
|
* While checking against particular roles in place of a capability is supported
|
|
* in part, this practice is discouraged as it may produce unreliable results.
|
|
*
|
|
* Note: Will always return true if the current user is a super admin, unless specifically denied.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @see WP_User::has_cap()
|
|
* @see map_meta_cap()
|
|
*
|
|
* @param string $capability Capability name.
|
|
* @param int $object_id Optional. ID of the specific object to check against if `$capability` is a "meta" cap.
|
|
* "Meta" capabilities, e.g. 'edit_post', 'edit_user', etc., are capabilities used
|
|
* by map_meta_cap() to map to other "primitive" capabilities, e.g. 'edit_posts',
|
|
* 'edit_others_posts', etc. Accessed via func_get_args() and passed to WP_User::has_cap(),
|
|
* then map_meta_cap().
|
|
* @return bool Whether the current user has the given capability. If `$capability` is a meta cap and `$object_id` is
|
|
* passed, whether the current user has the given meta capability for the given object.
|
|
*/
|
|
function current_user_can( $capability ) {
|
|
$current_user = wp_get_current_user();
|
|
|
|
if ( empty( $current_user ) ) {
|
|
return false;
|
|
}
|
|
|
|
$args = array_slice( func_get_args(), 1 );
|
|
$args = array_merge( array( $capability ), $args );
|
|
|
|
return call_user_func_array( array( $current_user, 'has_cap' ), $args );
|
|
}
|
|
|
|
/**
|
|
* Whether the current user has a specific capability for a given site.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param int $blog_id Site ID.
|
|
* @param string $capability Capability name.
|
|
* @return bool Whether the user has the given capability.
|
|
*/
|
|
function current_user_can_for_blog( $blog_id, $capability ) {
|
|
$switched = is_multisite() ? switch_to_blog( $blog_id ) : false;
|
|
|
|
$current_user = wp_get_current_user();
|
|
|
|
if ( empty( $current_user ) ) {
|
|
if ( $switched ) {
|
|
restore_current_blog();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
$args = array_slice( func_get_args(), 2 );
|
|
$args = array_merge( array( $capability ), $args );
|
|
|
|
$can = call_user_func_array( array( $current_user, 'has_cap' ), $args );
|
|
|
|
if ( $switched ) {
|
|
restore_current_blog();
|
|
}
|
|
|
|
return $can;
|
|
}
|
|
|
|
/**
|
|
* Whether the author of the supplied post has a specific capability.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param int|WP_Post $post Post ID or post object.
|
|
* @param string $capability Capability name.
|
|
* @return bool Whether the post author has the given capability.
|
|
*/
|
|
function author_can( $post, $capability ) {
|
|
if ( ! $post = get_post( $post ) ) {
|
|
return false;
|
|
}
|
|
|
|
$author = get_userdata( $post->post_author );
|
|
|
|
if ( ! $author ) {
|
|
return false;
|
|
}
|
|
|
|
$args = array_slice( func_get_args(), 2 );
|
|
$args = array_merge( array( $capability ), $args );
|
|
|
|
return call_user_func_array( array( $author, 'has_cap' ), $args );
|
|
}
|
|
|
|
/**
|
|
* Whether a particular user has a specific capability.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param int|WP_User $user User ID or object.
|
|
* @param string $capability Capability name.
|
|
* @return bool Whether the user has the given capability.
|
|
*/
|
|
function user_can( $user, $capability ) {
|
|
if ( ! is_object( $user ) ) {
|
|
$user = get_userdata( $user );
|
|
}
|
|
|
|
if ( ! $user || ! $user->exists() ) {
|
|
return false;
|
|
}
|
|
|
|
$args = array_slice( func_get_args(), 2 );
|
|
$args = array_merge( array( $capability ), $args );
|
|
|
|
return call_user_func_array( array( $user, 'has_cap' ), $args );
|
|
}
|
|
|
|
/**
|
|
* Retrieves the global WP_Roles instance and instantiates it if necessary.
|
|
*
|
|
* @since 4.3.0
|
|
*
|
|
* @global WP_Roles $wp_roles WP_Roles global instance.
|
|
*
|
|
* @return WP_Roles WP_Roles global instance if not already instantiated.
|
|
*/
|
|
function wp_roles() {
|
|
global $wp_roles;
|
|
|
|
if ( ! isset( $wp_roles ) ) {
|
|
$wp_roles = new WP_Roles();
|
|
}
|
|
return $wp_roles;
|
|
}
|
|
|
|
/**
|
|
* Retrieve role object.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @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 ) {
|
|
return wp_roles()->get_role( $role );
|
|
}
|
|
|
|
/**
|
|
* Add role, if it does not exist.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param string $role Role name.
|
|
* @param string $display_name Display name for role.
|
|
* @param array $capabilities List of capabilities, e.g. array( 'edit_posts' => true, 'delete_posts' => false );
|
|
* @return WP_Role|null WP_Role object if role is added, null if already exists.
|
|
*/
|
|
function add_role( $role, $display_name, $capabilities = array() ) {
|
|
if ( empty( $role ) ) {
|
|
return;
|
|
}
|
|
return wp_roles()->add_role( $role, $display_name, $capabilities );
|
|
}
|
|
|
|
/**
|
|
* Remove role, if it exists.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param string $role Role name.
|
|
*/
|
|
function remove_role( $role ) {
|
|
wp_roles()->remove_role( $role );
|
|
}
|
|
|
|
/**
|
|
* Retrieve a list of super admins.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @global array $super_admins
|
|
*
|
|
* @return array List of super admin logins
|
|
*/
|
|
function get_super_admins() {
|
|
global $super_admins;
|
|
|
|
if ( isset( $super_admins ) ) {
|
|
return $super_admins;
|
|
} else {
|
|
return get_site_option( 'site_admins', array( 'admin' ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determine if user is a site admin.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param int $user_id (Optional) The ID of a user. Defaults to the current user.
|
|
* @return bool True if the user is a site admin.
|
|
*/
|
|
function is_super_admin( $user_id = false ) {
|
|
if ( ! $user_id || $user_id == get_current_user_id() ) {
|
|
$user = wp_get_current_user();
|
|
} else {
|
|
$user = get_userdata( $user_id );
|
|
}
|
|
|
|
if ( ! $user || ! $user->exists() ) {
|
|
return false;
|
|
}
|
|
|
|
if ( is_multisite() ) {
|
|
$super_admins = get_super_admins();
|
|
if ( is_array( $super_admins ) && in_array( $user->user_login, $super_admins ) ) {
|
|
return true;
|
|
}
|
|
} else {
|
|
if ( $user->has_cap( 'delete_users' ) ) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Grants Super Admin privileges.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @global array $super_admins
|
|
*
|
|
* @param int $user_id ID of the user to be granted Super Admin privileges.
|
|
* @return bool True on success, false on failure. This can fail when the user is
|
|
* already a super admin or when the `$super_admins` global is defined.
|
|
*/
|
|
function grant_super_admin( $user_id ) {
|
|
// If global super_admins override is defined, there is nothing to do here.
|
|
if ( isset( $GLOBALS['super_admins'] ) || ! is_multisite() ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Fires before the user is granted Super Admin privileges.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param int $user_id ID of the user that is about to be granted Super Admin privileges.
|
|
*/
|
|
do_action( 'grant_super_admin', $user_id );
|
|
|
|
// Directly fetch site_admins instead of using get_super_admins()
|
|
$super_admins = get_site_option( 'site_admins', array( 'admin' ) );
|
|
|
|
$user = get_userdata( $user_id );
|
|
if ( $user && ! in_array( $user->user_login, $super_admins ) ) {
|
|
$super_admins[] = $user->user_login;
|
|
update_site_option( 'site_admins', $super_admins );
|
|
|
|
/**
|
|
* Fires after the user is granted Super Admin privileges.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param int $user_id ID of the user that was granted Super Admin privileges.
|
|
*/
|
|
do_action( 'granted_super_admin', $user_id );
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Revokes Super Admin privileges.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @global array $super_admins
|
|
*
|
|
* @param int $user_id ID of the user Super Admin privileges to be revoked from.
|
|
* @return bool True on success, false on failure. This can fail when the user's email
|
|
* is the network admin email or when the `$super_admins` global is defined.
|
|
*/
|
|
function revoke_super_admin( $user_id ) {
|
|
// If global super_admins override is defined, there is nothing to do here.
|
|
if ( isset( $GLOBALS['super_admins'] ) || ! is_multisite() ) {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Fires before the user's Super Admin privileges are revoked.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param int $user_id ID of the user Super Admin privileges are being revoked from.
|
|
*/
|
|
do_action( 'revoke_super_admin', $user_id );
|
|
|
|
// Directly fetch site_admins instead of using get_super_admins()
|
|
$super_admins = get_site_option( 'site_admins', array( 'admin' ) );
|
|
|
|
$user = get_userdata( $user_id );
|
|
if ( $user && 0 !== strcasecmp( $user->user_email, get_site_option( 'admin_email' ) ) ) {
|
|
if ( false !== ( $key = array_search( $user->user_login, $super_admins ) ) ) {
|
|
unset( $super_admins[ $key ] );
|
|
update_site_option( 'site_admins', $super_admins );
|
|
|
|
/**
|
|
* Fires after the user's Super Admin privileges are revoked.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param int $user_id ID of the user Super Admin privileges were revoked from.
|
|
*/
|
|
do_action( 'revoked_super_admin', $user_id );
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Filters the user capabilities to grant the 'install_languages' capability as necessary.
|
|
*
|
|
* A user must have at least one out of the 'update_core', 'install_plugins', and
|
|
* 'install_themes' capabilities to qualify for 'install_languages'.
|
|
*
|
|
* @since 4.9.0
|
|
*
|
|
* @param bool[] $allcaps An array of all the user's capabilities.
|
|
* @return bool[] Filtered array of the user's capabilities.
|
|
*/
|
|
function wp_maybe_grant_install_languages_cap( $allcaps ) {
|
|
if ( ! empty( $allcaps['update_core'] ) || ! empty( $allcaps['install_plugins'] ) || ! empty( $allcaps['install_themes'] ) ) {
|
|
$allcaps['install_languages'] = true;
|
|
}
|
|
|
|
return $allcaps;
|
|
}
|