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1060 lines
33 KiB
1060 lines
33 KiB
<?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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/** |
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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, $meta_key ); |
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* |
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* This does not actually compare whether the user ID has the actual capability, |
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* just what the capability or capabilities are. Meta capability list value can |
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* be 'delete_user', 'edit_user', 'remove_user', 'promote_user', 'delete_post', |
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* 'delete_page', 'edit_post', 'edit_page', 'read_post', or 'read_page'. |
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* |
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* @since 2.0.0 |
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* @since 5.3.0 Formalized the existing and already documented `...$args` parameter |
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* by adding it to the function signature. |
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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/* |
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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', $user_id ) ); |
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} |
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|
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break; |
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// edit_post breaks down to edit_posts, edit_published_posts, or |
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// edit_others_posts |
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case 'edit_post': |
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case 'edit_page': |
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$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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|
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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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|
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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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|
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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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|
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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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/* |
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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', $user_id ) ); |
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} |
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|
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break; |
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case 'read_post': |
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case 'read_page': |
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$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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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) $args[0]; |
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|
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$object_subtype = get_object_subtype( $object_type, $object_id ); |
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|
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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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|
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$caps = map_meta_cap( "edit_{$object_type}", $user_id, $object_id ); |
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|
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$meta_key = isset( $args[1] ) ? $args[1] : false; |
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|
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if ( $meta_key ) { |
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$allowed = ! is_protected_meta( $meta_key, $object_type ); |
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|
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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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/** |
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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, $caps ); |
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} else { |
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|
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/** |
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* Filters whether the user is allowed to edit a specific meta key of a specific object type. |
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* |
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* Return true to have the mapped meta caps from `edit_{$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': |
|
$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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/* |
|
* If the post doesn't exist, we have an orphaned comment. |
|
* Fall back to the edit_posts capability, instead. |
|
*/ |
|
if ( $post ) { |
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$caps = map_meta_cap( 'edit_post', $user_id, $post->ID ); |
|
} else { |
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$caps = map_meta_cap( 'edit_posts', $user_id ); |
|
} |
|
break; |
|
case 'unfiltered_upload': |
|
if ( defined( 'ALLOW_UNFILTERED_UPLOADS' ) && ALLOW_UNFILTERED_UPLOADS && ( ! is_multisite() || is_super_admin( $user_id ) ) ) { |
|
$caps[] = $cap; |
|
} else { |
|
$caps[] = 'do_not_allow'; |
|
} |
|
break; |
|
case 'edit_css': |
|
case 'unfiltered_html': |
|
// Disallow unfiltered_html for all users, even admins and super admins. |
|
if ( defined( 'DISALLOW_UNFILTERED_HTML' ) && DISALLOW_UNFILTERED_HTML ) { |
|
$caps[] = 'do_not_allow'; |
|
} elseif ( is_multisite() && ! is_super_admin( $user_id ) ) { |
|
$caps[] = 'do_not_allow'; |
|
} else { |
|
$caps[] = 'unfiltered_html'; |
|
} |
|
break; |
|
case 'edit_files': |
|
case 'edit_plugins': |
|
case 'edit_themes': |
|
// Disallow the file editors. |
|
if ( defined( 'DISALLOW_FILE_EDIT' ) && DISALLOW_FILE_EDIT ) { |
|
$caps[] = 'do_not_allow'; |
|
} elseif ( ! wp_is_file_mod_allowed( 'capability_edit_themes' ) ) { |
|
$caps[] = 'do_not_allow'; |
|
} elseif ( is_multisite() && ! is_super_admin( $user_id ) ) { |
|
$caps[] = 'do_not_allow'; |
|
} else { |
|
$caps[] = $cap; |
|
} |
|
break; |
|
case 'update_plugins': |
|
case 'delete_plugins': |
|
case 'install_plugins': |
|
case 'upload_plugins': |
|
case 'update_themes': |
|
case 'delete_themes': |
|
case 'install_themes': |
|
case 'upload_themes': |
|
case 'update_core': |
|
// Disallow anything that creates, deletes, or updates core, plugin, or theme files. |
|
// Files in uploads are excepted. |
|
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 ] ) ) { |
|
return map_meta_cap( $post_type_meta_caps[ $cap ], $user_id, ...$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, $meta_key ); |
|
* |
|
* While checking against particular roles in place of a capability is supported |
|
* in part, this practice is discouraged as it may produce unreliable results. |
|
* |
|
* Note: Will always return true if the current user is a super admin, unless specifically denied. |
|
* |
|
* @since 2.0.0 |
|
* @since 5.3.0 Formalized the existing and already documented `...$args` parameter |
|
* by adding it to the function signature. |
|
* |
|
* @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, $meta_key ); |
|
* |
|
* @since 3.0.0 |
|
* @since 5.3.0 Formalized the existing and already documented `...$args` parameter |
|
* by adding it to the function signature. |
|
* |
|
* @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, $meta_key ); |
|
* |
|
* @since 2.9.0 |
|
* @since 5.3.0 Formalized the existing and already documented `...$args` parameter |
|
* by adding it to the function signature. |
|
* |
|
* @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, $meta_key ); |
|
* |
|
* @since 3.1.0 |
|
* @since 5.3.0 Formalized the existing and already documented `...$args` parameter |
|
* by adding it to the function signature. |
|
* |
|
* @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 subscribers. */ |
|
_x( 'Subscriber', 'User role' );
|
|
|