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00cb4c7dbd
Allowing the client to delete revisions breaks the "audit trail" functionality. This is not allowed in WordPress and shouldn't be allowed through the API. While not recommended, a plugin may opt-in to the previous behavior by setting a custom 'delete_post' capability for the revisions post type. Props dlh, danielbachhuber, TimothyBlynJacobs, azaozz, kadamwhite. Fixes #43709. Built from https://develop.svn.wordpress.org/trunk@45812 git-svn-id: http://core.svn.wordpress.org/trunk@45623 1a063a9b-81f0-0310-95a4-ce76da25c4cd
1052 lines
33 KiB
PHP
1052 lines
33 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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* Maps meta capabilities to primitive capabilities.
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*
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* This function also accepts an ID of an object to map against if the capability is a meta capability. Meta
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* capabilities such as `edit_post` and `edit_user` are capabilities used by this function to map to primitive
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* capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`.
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*
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* Example usage:
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*
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* map_meta_cap( 'edit_posts', $user->ID );
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* map_meta_cap( 'edit_post', $user->ID, $post->ID );
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* map_meta_cap( 'edit_post_meta', $user->ID, $post->ID, $meta_key );
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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 $user_id User ID.
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* @param mixed ...$args Optional further parameters, typically starting with an object ID.
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* @return array Actual capabilities for meta capability.
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*/
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function map_meta_cap( $cap, $user_id, ...$args ) {
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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' == $post->post_type ) {
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$caps[] = 'do_not_allow';
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break;
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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) $args[0];
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$object_subtype = get_object_subtype( $object_type, $object_id );
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if ( empty( $object_subtype ) ) {
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$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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if ( $meta_key ) {
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$allowed = ! is_protected_meta( $meta_key, $object_type );
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if ( ! empty( $object_subtype ) && has_filter( "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}" ) ) {
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/**
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* Filters whether the user is allowed to edit a specific meta key of a specific object type and subtype.
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*
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* The dynamic portions of the hook name, `$object_type`, `$meta_key`,
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* and `$object_subtype`, refer to the metadata object type (comment, post, term or user),
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* the meta key value, and the object subtype respectively.
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*
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* @since 4.9.8
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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}_for_{$object_subtype}", $allowed, $meta_key, $object_id, $user_id, $cap, $caps );
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} else {
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/**
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* Filters whether the user is allowed to edit a specific meta key of a specific object type.
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*
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* Return true to have the mapped meta caps from `edit_{$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}", $allowed, $meta_key, $object_id, $user_id, $cap, $caps );
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}
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if ( ! empty( $object_subtype ) ) {
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/**
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* Filters whether the user is allowed to edit meta for specific object types/subtypes.
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*
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* Return true to have the mapped meta caps from `edit_{$object_type}` apply.
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*
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* The dynamic portion of the hook name, `$object_type` refers to the object type being filtered.
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* The dynamic portion of the hook name, `$object_subtype` 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_{$meta_key}`.
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* @since 4.7.0
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* @deprecated 4.9.8 Use `auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}`
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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_deprecated( "auth_{$object_type}_{$object_subtype}_meta_{$meta_key}", array( $allowed, $meta_key, $object_id, $user_id, $cap, $caps ), '4.9.8', "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}" );
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}
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if ( ! $allowed ) {
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$caps[] = $cap;
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}
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}
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break;
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case 'edit_comment':
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$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 'resume_plugin':
|
|
$caps[] = 'resume_plugins';
|
|
break;
|
|
case 'resume_theme':
|
|
$caps[] = 'resume_themes';
|
|
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 'update_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 );
|
|
}
|
|
|
|
// Block capabilities map to their post equivalent.
|
|
$block_caps = array(
|
|
'edit_blocks',
|
|
'edit_others_blocks',
|
|
'publish_blocks',
|
|
'read_private_blocks',
|
|
'delete_blocks',
|
|
'delete_private_blocks',
|
|
'delete_published_blocks',
|
|
'delete_others_blocks',
|
|
'edit_private_blocks',
|
|
'edit_published_blocks',
|
|
);
|
|
if ( in_array( $cap, $block_caps, true ) ) {
|
|
$cap = str_replace( '_blocks', '_posts', $cap );
|
|
}
|
|
|
|
// 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 );
|
|
}
|
|
|
|
/**
|
|
* Returns whether the current user has the specified capability.
|
|
*
|
|
* This function also accepts an ID of an object to check against if the capability is a meta capability. Meta
|
|
* capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to
|
|
* map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`.
|
|
*
|
|
* Example usage:
|
|
*
|
|
* current_user_can( 'edit_posts' );
|
|
* current_user_can( 'edit_post', $post->ID );
|
|
* current_user_can( 'edit_post_meta', $post->ID, $meta_key );
|
|
*
|
|
* 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 $capability Capability name.
|
|
* @param mixed ...$args Optional further parameters, typically starting with an object ID.
|
|
* @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( $capability, ...$args ) {
|
|
$current_user = wp_get_current_user();
|
|
|
|
if ( empty( $current_user ) ) {
|
|
return false;
|
|
}
|
|
|
|
return $current_user->has_cap( $capability, ...$args );
|
|
}
|
|
|
|
/**
|
|
* Returns whether the current user has the specified capability for a given site.
|
|
*
|
|
* This function also accepts an ID of an object to check against if the capability is a meta capability. Meta
|
|
* capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to
|
|
* map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`.
|
|
*
|
|
* Example usage:
|
|
*
|
|
* current_user_can_for_blog( $blog_id, 'edit_posts' );
|
|
* current_user_can_for_blog( $blog_id, 'edit_post', $post->ID );
|
|
* current_user_can_for_blog( $blog_id, 'edit_post_meta', $post->ID, $meta_key );
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param int $blog_id Site ID.
|
|
* @param string $capability Capability name.
|
|
* @param mixed ...$args Optional further parameters, typically starting with an object ID.
|
|
* @return bool Whether the user has the given capability.
|
|
*/
|
|
function current_user_can_for_blog( $blog_id, $capability, ...$args ) {
|
|
$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;
|
|
}
|
|
|
|
$can = $current_user->has_cap( $capability, ...$args );
|
|
|
|
if ( $switched ) {
|
|
restore_current_blog();
|
|
}
|
|
|
|
return $can;
|
|
}
|
|
|
|
/**
|
|
* Returns whether the author of the supplied post has the specified capability.
|
|
*
|
|
* This function also accepts an ID of an object to check against if the capability is a meta capability. Meta
|
|
* capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to
|
|
* map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`.
|
|
*
|
|
* Example usage:
|
|
*
|
|
* author_can( $post, 'edit_posts' );
|
|
* author_can( $post, 'edit_post', $post->ID );
|
|
* author_can( $post, 'edit_post_meta', $post->ID, $meta_key );
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param int|WP_Post $post Post ID or post object.
|
|
* @param string $capability Capability name.
|
|
* @param mixed ...$args Optional further parameters, typically starting with an object ID.
|
|
* @return bool Whether the post author has the given capability.
|
|
*/
|
|
function author_can( $post, $capability, ...$args ) {
|
|
$post = get_post( $post );
|
|
if ( ! $post ) {
|
|
return false;
|
|
}
|
|
|
|
$author = get_userdata( $post->post_author );
|
|
|
|
if ( ! $author ) {
|
|
return false;
|
|
}
|
|
|
|
return $author->has_cap( $capability, ...$args );
|
|
}
|
|
|
|
/**
|
|
* Returns whether a particular user has the specified capability.
|
|
*
|
|
* This function also accepts an ID of an object to check against if the capability is a meta capability. Meta
|
|
* capabilities such as `edit_post` and `edit_user` are capabilities used by the `map_meta_cap()` function to
|
|
* map to primitive capabilities that a user or role has, such as `edit_posts` and `edit_others_posts`.
|
|
*
|
|
* Example usage:
|
|
*
|
|
* user_can( $user->ID, 'edit_posts' );
|
|
* user_can( $user->ID, 'edit_post', $post->ID );
|
|
* user_can( $user->ID, 'edit_post_meta', $post->ID, $meta_key );
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param int|WP_User $user User ID or object.
|
|
* @param string $capability Capability name.
|
|
* @param mixed ...$args Optional further parameters, typically starting with an object ID.
|
|
* @return bool Whether the user has the given capability.
|
|
*/
|
|
function user_can( $user, $capability, ...$args ) {
|
|
if ( ! is_object( $user ) ) {
|
|
$user = get_userdata( $user );
|
|
}
|
|
|
|
if ( ! $user || ! $user->exists() ) {
|
|
return false;
|
|
}
|
|
|
|
return $user->has_cap( $capability, ...$args );
|
|
}
|
|
|
|
/**
|
|
* Retrieves the global WP_Roles instance and instantiates it if necessary.
|
|
*
|
|
* @since 4.3.0
|
|
*
|
|
* @global WP_Roles $wp_roles WordPress role management object.
|
|
*
|
|
* @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' ) ) ) {
|
|
$key = array_search( $user->user_login, $super_admins );
|
|
if ( false !== $key ) {
|
|
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;
|
|
}
|
|
|
|
/**
|
|
* Filters the user capabilities to grant the 'resume_plugins' and 'resume_themes' capabilities as necessary.
|
|
*
|
|
* @since 5.2.0
|
|
*
|
|
* @param bool[] $allcaps An array of all the user's capabilities.
|
|
* @return bool[] Filtered array of the user's capabilities.
|
|
*/
|
|
function wp_maybe_grant_resume_extensions_caps( $allcaps ) {
|
|
// Even in a multisite, regular administrators should be able to resume plugins.
|
|
if ( ! empty( $allcaps['activate_plugins'] ) ) {
|
|
$allcaps['resume_plugins'] = true;
|
|
}
|
|
|
|
// Even in a multisite, regular administrators should be able to resume themes.
|
|
if ( ! empty( $allcaps['switch_themes'] ) ) {
|
|
$allcaps['resume_themes'] = true;
|
|
}
|
|
|
|
return $allcaps;
|
|
}
|
|
|
|
/**
|
|
* Filters the user capabilities to grant the 'view_site_health_checks' capabilities as necessary.
|
|
*
|
|
* @since 5.2.2
|
|
*
|
|
* @param bool[] $allcaps An array of all the user's capabilities.
|
|
* @param string[] $caps Required primitive capabilities for the requested capability.
|
|
* @param array $args {
|
|
* Arguments that accompany the requested capability check.
|
|
*
|
|
* @type string $0 Requested capability.
|
|
* @type int $1 Concerned user ID.
|
|
* @type mixed ...$2 Optional second and further parameters, typically object ID.
|
|
* }
|
|
* @param WP_User $user The user object.
|
|
* @return bool[] Filtered array of the user's capabilities.
|
|
*/
|
|
function wp_maybe_grant_site_health_caps( $allcaps, $caps, $args, $user ) {
|
|
if ( ! empty( $allcaps['install_plugins'] ) && ( ! is_multisite() || is_super_admin( $user->ID ) ) ) {
|
|
$allcaps['view_site_health_checks'] = true;
|
|
}
|
|
|
|
return $allcaps;
|
|
}
|
|
|
|
return;
|
|
|
|
// Dummy gettext calls to get strings in the catalog.
|
|
/* translators: user role for administrators */
|
|
_x( 'Administrator', 'User role' );
|
|
/* translators: user role for editors */
|
|
_x( 'Editor', 'User role' );
|
|
/* translators: user role for authors */
|
|
_x( 'Author', 'User role' );
|
|
/* translators: user role for contributors */
|
|
_x( 'Contributor', 'User role' );
|
|
/* translators: user role for subscriber */
|
|
_x( 'Subscriber', 'User role' );
|