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<?php
/**
* Core User Role & Capabilities API
*
* @package WordPress
* @subpackage Users
*/
/**
* Maps a capability to the primitive capabilities required of the given user to
* satisfy the capability being checked.
*
* This function also accepts an ID of an object to map against if the capability is a meta capability. Meta
* capabilities such as `edit_post` and `edit_user` are capabilities used by this function to map to primitive
* capabilities that a user or role requires, such as `edit_posts` and `edit_others_posts`.
*
* Example usage:
*
* map_meta_cap( 'edit_posts', $user->ID );
* map_meta_cap( 'edit_post', $user->ID, $post->ID );
* map_meta_cap( 'edit_post_meta', $user->ID, $post->ID, $meta_key );
*
* This function does not check whether the user has the required capabilities,
* it just returns what the required capabilities are.
*
* @since 2.0.0
* @since 4.9.6 Added the `export_others_personal_data`, `erase_others_personal_data`,
* and `manage_privacy_options` capabilities.
* @since 5.1.0 Added the `update_php` capability.
* @since 5.2.0 Added the `resume_plugin` and `resume_theme` capabilities.
* @since 5.3.0 Formalized the existing and already documented `...$args` parameter
* by adding it to the function signature.
* @since 5.7.0 Added the `create_app_password`, `list_app_passwords`, `read_app_password`,
* `edit_app_password`, `delete_app_passwords`, `delete_app_password`,
* and `update_https` capabilities.
*
* @global array $post_type_meta_caps Used to get post type meta capabilities.
*
* @param string $cap Capability being checked.
* @param int $user_id User ID.
* @param mixed ...$args Optional further parameters, typically starting with an object ID.
* @return string[] Primitive capabilities required of the user.
*/
function map_meta_cap( $cap, $user_id, ...$args ) {
$caps = array();
switch ( $cap ) {
case 'remove_user':
// In multisite the user must be a super admin to remove themselves.
if ( isset( $args[0] ) && $user_id == $args[0] && ! is_super_admin( $user_id ) ) {
$caps[] = 'do_not_allow';
} else {
$caps[] = 'remove_users';
}
break;
case 'promote_user':
case 'add_users':
$caps[] = 'promote_users';
break;
case 'edit_user':
case 'edit_users':
// Allow user to edit themselves.
if ( 'edit_user' === $cap && isset( $args[0] ) && $user_id == $args[0] ) {
break;
}
// In multisite the user must have manage_network_users caps. If editing a super admin, the user must be a super admin.
if ( is_multisite() && ( ( ! is_super_admin( $user_id ) && 'edit_user' === $cap && is_super_admin( $args[0] ) ) || ! user_can( $user_id, 'manage_network_users' ) ) ) {
$caps[] = 'do_not_allow';
} else {
$caps[] = 'edit_users'; // edit_user maps to edit_users.
}
break;
case 'delete_post':
case 'delete_page':
if ( ! isset( $args[0] ) ) {
if ( 'delete_post' === $cap ) {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific post.' );
} else {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific page.' );
}
_doing_it_wrong(
__FUNCTION__,
sprintf( $message, '<code>' . $cap . '</code>' ),
'6.1.0'
);
$caps[] = 'do_not_allow';
break;
}
$post = get_post( $args[0] );
if ( ! $post ) {
$caps[] = 'do_not_allow';
break;
}
if ( 'revision' === $post->post_type ) {
$caps[] = 'do_not_allow';
break;
}
if ( ( get_option( 'page_for_posts' ) == $post->ID ) || ( get_option( 'page_on_front' ) == $post->ID ) ) {
$caps[] = 'manage_options';
break;
}
$post_type = get_post_type_object( $post->post_type );
if ( ! $post_type ) {
/* translators: 1: Post type, 2: Capability name. */
$message = __( 'The post type %1$s is not registered, so it may not be reliable to check the capability %2$s against a post of that type.' );
_doing_it_wrong(
__FUNCTION__,
sprintf(
$message,
'<code>' . $post->post_type . '</code>',
'<code>' . $cap . '</code>'
),
'4.4.0'
);
$caps[] = 'edit_others_posts';
break;
}
if ( ! $post_type->map_meta_cap ) {
$caps[] = $post_type->cap->$cap;
// Prior to 3.1 we would re-call map_meta_cap here.
if ( 'delete_post' === $cap ) {
$cap = $post_type->cap->$cap;
}
break;
}
// If the post author is set and the user is the author...
if ( $post->post_author && $user_id == $post->post_author ) {
// If the post is published or scheduled...
if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) {
$caps[] = $post_type->cap->delete_published_posts;
} elseif ( 'trash' === $post->post_status ) {
$status = get_post_meta( $post->ID, '_wp_trash_meta_status', true );
if ( in_array( $status, array( 'publish', 'future' ), true ) ) {
$caps[] = $post_type->cap->delete_published_posts;
} else {
$caps[] = $post_type->cap->delete_posts;
}
} else {
// If the post is draft...
$caps[] = $post_type->cap->delete_posts;
}
} else {
// The user is trying to edit someone else's post.
$caps[] = $post_type->cap->delete_others_posts;
// The post is published or scheduled, extra cap required.
if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) {
$caps[] = $post_type->cap->delete_published_posts;
} elseif ( 'private' === $post->post_status ) {
$caps[] = $post_type->cap->delete_private_posts;
}
}
/*
* Setting the privacy policy page requires `manage_privacy_options`,
* so deleting it should require that too.
*/
if ( (int) get_option( 'wp_page_for_privacy_policy' ) === $post->ID ) {
$caps = array_merge( $caps, map_meta_cap( 'manage_privacy_options', $user_id ) );
}
break;
/*
* edit_post breaks down to edit_posts, edit_published_posts, or
* edit_others_posts.
*/
case 'edit_post':
case 'edit_page':
if ( ! isset( $args[0] ) ) {
if ( 'edit_post' === $cap ) {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific post.' );
} else {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific page.' );
}
_doing_it_wrong(
__FUNCTION__,
sprintf( $message, '<code>' . $cap . '</code>' ),
'6.1.0'
);
$caps[] = 'do_not_allow';
break;
}
$post = get_post( $args[0] );
if ( ! $post ) {
$caps[] = 'do_not_allow';
break;
}
if ( 'revision' === $post->post_type ) {
$post = get_post( $post->post_parent );
if ( ! $post ) {
$caps[] = 'do_not_allow';
break;
}
}
$post_type = get_post_type_object( $post->post_type );
if ( ! $post_type ) {
/* translators: 1: Post type, 2: Capability name. */
$message = __( 'The post type %1$s is not registered, so it may not be reliable to check the capability %2$s against a post of that type.' );
_doing_it_wrong(
__FUNCTION__,
sprintf(
$message,
'<code>' . $post->post_type . '</code>',
'<code>' . $cap . '</code>'
),
'4.4.0'
);
$caps[] = 'edit_others_posts';
break;
}
if ( ! $post_type->map_meta_cap ) {
$caps[] = $post_type->cap->$cap;
// Prior to 3.1 we would re-call map_meta_cap here.
if ( 'edit_post' === $cap ) {
$cap = $post_type->cap->$cap;
}
break;
}
// If the post author is set and the user is the author...
if ( $post->post_author && $user_id == $post->post_author ) {
// If the post is published or scheduled...
if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) {
$caps[] = $post_type->cap->edit_published_posts;
} elseif ( 'trash' === $post->post_status ) {
$status = get_post_meta( $post->ID, '_wp_trash_meta_status', true );
if ( in_array( $status, array( 'publish', 'future' ), true ) ) {
$caps[] = $post_type->cap->edit_published_posts;
} else {
$caps[] = $post_type->cap->edit_posts;
}
} else {
// If the post is draft...
$caps[] = $post_type->cap->edit_posts;
}
} else {
// The user is trying to edit someone else's post.
$caps[] = $post_type->cap->edit_others_posts;
// The post is published or scheduled, extra cap required.
if ( in_array( $post->post_status, array( 'publish', 'future' ), true ) ) {
$caps[] = $post_type->cap->edit_published_posts;
} elseif ( 'private' === $post->post_status ) {
$caps[] = $post_type->cap->edit_private_posts;
}
}
/*
* Setting the privacy policy page requires `manage_privacy_options`,
* so editing it should require that too.
*/
if ( (int) get_option( 'wp_page_for_privacy_policy' ) === $post->ID ) {
$caps = array_merge( $caps, map_meta_cap( 'manage_privacy_options', $user_id ) );
}
break;
case 'read_post':
case 'read_page':
if ( ! isset( $args[0] ) ) {
if ( 'read_post' === $cap ) {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific post.' );
} else {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific page.' );
}
_doing_it_wrong(
__FUNCTION__,
sprintf( $message, '<code>' . $cap . '</code>' ),
'6.1.0'
);
$caps[] = 'do_not_allow';
break;
}
$post = get_post( $args[0] );
if ( ! $post ) {
$caps[] = 'do_not_allow';
break;
}
if ( 'revision' === $post->post_type ) {
$post = get_post( $post->post_parent );
if ( ! $post ) {
$caps[] = 'do_not_allow';
break;
}
}
$post_type = get_post_type_object( $post->post_type );
if ( ! $post_type ) {
/* translators: 1: Post type, 2: Capability name. */
$message = __( 'The post type %1$s is not registered, so it may not be reliable to check the capability %2$s against a post of that type.' );
_doing_it_wrong(
__FUNCTION__,
sprintf(
$message,
'<code>' . $post->post_type . '</code>',
'<code>' . $cap . '</code>'
),
'4.4.0'
);
$caps[] = 'edit_others_posts';
break;
}
if ( ! $post_type->map_meta_cap ) {
$caps[] = $post_type->cap->$cap;
// Prior to 3.1 we would re-call map_meta_cap here.
if ( 'read_post' === $cap ) {
$cap = $post_type->cap->$cap;
}
break;
}
$status_obj = get_post_status_object( get_post_status( $post ) );
if ( ! $status_obj ) {
/* translators: 1: Post status, 2: Capability name. */
$message = __( 'The post status %1$s is not registered, so it may not be reliable to check the capability %2$s against a post with that status.' );
_doing_it_wrong(
__FUNCTION__,
sprintf(
$message,
'<code>' . get_post_status( $post ) . '</code>',
'<code>' . $cap . '</code>'
),
'5.4.0'
);
$caps[] = 'edit_others_posts';
break;
}
if ( $status_obj->public ) {
$caps[] = $post_type->cap->read;
break;
}
if ( $post->post_author && $user_id == $post->post_author ) {
$caps[] = $post_type->cap->read;
} elseif ( $status_obj->private ) {
$caps[] = $post_type->cap->read_private_posts;
} else {
$caps = map_meta_cap( 'edit_post', $user_id, $post->ID );
}
break;
case 'publish_post':
if ( ! isset( $args[0] ) ) {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific post.' );
_doing_it_wrong(
__FUNCTION__,
sprintf( $message, '<code>' . $cap . '</code>' ),
'6.1.0'
);
$caps[] = 'do_not_allow';
break;
}
$post = get_post( $args[0] );
if ( ! $post ) {
$caps[] = 'do_not_allow';
break;
}
$post_type = get_post_type_object( $post->post_type );
if ( ! $post_type ) {
/* translators: 1: Post type, 2: Capability name. */
$message = __( 'The post type %1$s is not registered, so it may not be reliable to check the capability %2$s against a post of that type.' );
_doing_it_wrong(
__FUNCTION__,
sprintf(
$message,
'<code>' . $post->post_type . '</code>',
'<code>' . $cap . '</code>'
),
'4.4.0'
);
$caps[] = 'edit_others_posts';
break;
}
$caps[] = $post_type->cap->publish_posts;
break;
case 'edit_post_meta':
case 'delete_post_meta':
case 'add_post_meta':
case 'edit_comment_meta':
case 'delete_comment_meta':
case 'add_comment_meta':
case 'edit_term_meta':
case 'delete_term_meta':
case 'add_term_meta':
case 'edit_user_meta':
case 'delete_user_meta':
case 'add_user_meta':
$object_type = explode( '_', $cap )[1];
if ( ! isset( $args[0] ) ) {
if ( 'post' === $object_type ) {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific post.' );
} elseif ( 'comment' === $object_type ) {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific comment.' );
} elseif ( 'term' === $object_type ) {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific term.' );
} else {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific user.' );
}
_doing_it_wrong(
__FUNCTION__,
sprintf( $message, '<code>' . $cap . '</code>' ),
'6.1.0'
);
$caps[] = 'do_not_allow';
break;
}
$object_id = (int) $args[0];
$object_subtype = get_object_subtype( $object_type, $object_id );
if ( empty( $object_subtype ) ) {
$caps[] = 'do_not_allow';
break;
}
$caps = map_meta_cap( "edit_{$object_type}", $user_id, $object_id );
$meta_key = isset( $args[1] ) ? $args[1] : false;
if ( $meta_key ) {
$allowed = ! is_protected_meta( $meta_key, $object_type );
if ( ! empty( $object_subtype ) && has_filter( "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}" ) ) {
/**
* Filters whether the user is allowed to edit a specific meta key of a specific object type and subtype.
*
* The dynamic portions of the hook name, `$object_type`, `$meta_key`,
* and `$object_subtype`, refer to the metadata object type (comment, post, term or user),
* the meta key value, and the object subtype respectively.
*
* @since 4.9.8
*
* @param bool $allowed Whether the user can add the object meta. Default false.
* @param string $meta_key The meta key.
* @param int $object_id Object ID.
* @param int $user_id User ID.
* @param string $cap Capability name.
* @param string[] $caps Array of the user's capabilities.
*/
$allowed = apply_filters( "auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}", $allowed, $meta_key, $object_id, $user_id, $cap, $caps );
} else {
/**
* Filters whether the user is allowed to edit a specific meta key of a specific object type.
*
* Return true to have the mapped meta caps from `edit_{$object_type}` apply.
*
* The dynamic portion of the hook name, `$object_type` refers to the object type being filtered.
* The dynamic portion of the hook name, `$meta_key`, refers to the meta key passed to map_meta_cap().
*
* @since 3.3.0 As `auth_post_meta_{$meta_key}`.
* @since 4.6.0
*
* @param bool $allowed Whether the user can add the object meta. Default false.
* @param string $meta_key The meta key.
* @param int $object_id Object ID.
* @param int $user_id User ID.
* @param string $cap Capability name.
* @param string[] $caps Array of the user's capabilities.
*/
$allowed = apply_filters( "auth_{$object_type}_meta_{$meta_key}", $allowed, $meta_key, $object_id, $user_id, $cap, $caps );
}
if ( ! empty( $object_subtype ) ) {
/**
* Filters whether the user is allowed to edit meta for specific object types/subtypes.
*
* Return true to have the mapped meta caps from `edit_{$object_type}` apply.
*
* The dynamic portion of the hook name, `$object_type` refers to the object type being filtered.
* The dynamic portion of the hook name, `$object_subtype` refers to the object subtype being filtered.
* The dynamic portion of the hook name, `$meta_key`, refers to the meta key passed to map_meta_cap().
*
* @since 4.6.0 As `auth_post_{$post_type}_meta_{$meta_key}`.
* @since 4.7.0 Renamed from `auth_post_{$post_type}_meta_{$meta_key}` to
* `auth_{$object_type}_{$object_subtype}_meta_{$meta_key}`.
* @deprecated 4.9.8 Use {@see 'auth_{$object_type}_meta_{$meta_key}_for_{$object_subtype}'} instead.
*
* @param bool $allowed Whether the user can add the object meta. Default false.
* @param string $meta_key The meta key.
* @param int $object_id Object ID.
* @param int $user_id User ID.
* @param string $cap Capability name.
* @param string[] $caps Array of the user's capabilities.
*/
$allowed = apply_filters_deprecated(
"auth_{$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}"
);
}
if ( ! $allowed ) {
$caps[] = $cap;
}
}
break;
case 'edit_comment':
if ( ! isset( $args[0] ) ) {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific comment.' );
_doing_it_wrong(
__FUNCTION__,
sprintf( $message, '<code>' . $cap . '</code>' ),
'6.1.0'
);
$caps[] = 'do_not_allow';
break;
}
$comment = get_comment( $args[0] );
if ( ! $comment ) {
$caps[] = 'do_not_allow';
break;
}
$post = get_post( $comment->comment_post_ID );
/*
* If the post doesn't exist, we have an orphaned comment.
* Fall back to the edit_posts capability, instead.
*/
if ( $post ) {
$caps = map_meta_cap( 'edit_post', $user_id, $post->ID );
} else {
$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':
if ( ! isset( $args[0] ) ) {
/* translators: %s: Capability name. */
$message = __( 'When checking for the %s capability, you must always check it against a specific term.' );
_doing_it_wrong(
__FUNCTION__,
sprintf( $message, '<code>' . $cap . '</code>' ),
'6.1.0'
);
$caps[] = 'do_not_allow';
break;
}
$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
&& ( get_option( 'default_' . $term->taxonomy ) == $term->term_id
|| get_option( 'default_term_' . $term->taxonomy ) == $term->term_id )
) {
$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 'update_https':
if ( is_multisite() && ! is_super_admin( $user_id ) ) {
$caps[] = 'do_not_allow';
} else {
$caps[] = 'manage_options';
$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;
case 'create_app_password':
case 'list_app_passwords':
case 'read_app_password':
case 'edit_app_password':
case 'delete_app_passwords':
case 'delete_app_password':
$caps = map_meta_cap( 'edit_user', $user_id, $args[0] );
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 the primitive capabilities required of the given user to satisfy the
* capability being checked.
*
* @since 2.8.0
*
* @param string[] $caps Primitive capabilities required of the user.
* @param string $cap Capability being checked.
* @param int $user_id The user ID.
* @param array $args Adds context to the capability check, typically
* starting with an 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.
* @since 5.8.0 Converted to wrapper for the user_can() function.
*
* @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 ) {
return user_can( wp_get_current_user(), $capability, ...$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.
* @since 5.8.0 Wraps current_user_can() after switching to blog.
*
* @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;
$can = current_user_can( $capability, ...$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 ( empty( $user ) ) {
// User is logged out, create anonymous user object.
$user = new WP_User( 0 );
$user->init( new stdClass() );
}
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;
}
/**
* Retrieves 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 );
}
/**
* Adds a role, if it does not exist.
*
* @since 2.0.0
*
* @param string $role Role name.
* @param string $display_name Display name for role.
* @param bool[] $capabilities List of capabilities keyed by the capability name,
* e.g. array( 'edit_posts' => true, 'delete_posts' => false ).
* @return WP_Role|void WP_Role object, if the role is added.
*/
function add_role( $role, $display_name, $capabilities = array() ) {
if ( empty( $role ) ) {
return;
}
return wp_roles()->add_role( $role, $display_name, $capabilities );
}
/**
* Removes a role, if it exists.
*
* @since 2.0.0
*
* @param string $role Role name.
*/
function remove_role( $role ) {
wp_roles()->remove_role( $role );
}
/**
* Retrieves a list of super admins.
*
* @since 3.0.0
*
* @global array $super_admins
*
* @return string[] 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' ) );
}
}
/**
* Determines whether user is a site admin.
*
* @since 3.0.0
*
* @param int|false $user_id Optional. The ID of a user. Defaults to false, to check the current user.
* @return bool Whether the user is a site admin.
*/
function is_super_admin( $user_id = false ) {
if ( ! $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, true ) ) {
return true;
}
} elseif ( $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, true ) ) {
$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, true );
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' );