<?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.
* @since 6.7.0 Added the `edit_block_binding` capability.
*
* @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 === (int) $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 === (int) $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 ( (int) get_option( 'page_for_posts' ) === $post->ID
|| (int) 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 === (int) $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 === (int) $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 === (int) $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
&& ( (int) get_option( 'default_' . $term->taxonomy ) === $term->term_id
|| (int) 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;
case 'edit_block_binding':
$block_editor_context = $args[0];
if ( isset( $block_editor_context->post ) ) {
$object_id = $block_editor_context->post->ID;
}
/*
* If the post ID is null, check if the context is the site editor.
* Fall back to the edit_theme_options in that case.
*/
if ( ! isset( $object_id ) ) {
if ( ! isset( $block_editor_context->name ) || 'core/edit-site' !== $block_editor_context->name ) {
$caps[] = 'do_not_allow';
break;
}
$caps = map_meta_cap( 'edit_theme_options', $user_id );
break;
}
$object_subtype = get_object_subtype( 'post', (int) $object_id );
if ( empty( $object_subtype ) ) {
$caps[] = 'do_not_allow';
break;
}
$post_type_object = get_post_type_object( $object_subtype );
// Initialize empty array if it doesn't exist.
if ( ! isset( $post_type_object->capabilities ) ) {
$post_type_object->capabilities = array();
}
$post_type_capabilities = get_post_type_capabilities( $post_type_object );
$caps = map_meta_cap( $post_type_capabilities->edit_post, $user_id, $object_id );
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`.
*
* This function replaces the current_user_can_for_blog() function.
*
* Example usage:
*
* current_user_can_for_site( $site_id, 'edit_posts' );
* current_user_can_for_site( $site_id, 'edit_post', $post->ID );
* current_user_can_for_site( $site_id, 'edit_post_meta', $post->ID, $meta_key );
*
* @since 6.7.0
*
* @param int $site_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_site( $site_id, $capability, ...$args ) {
$switched = is_multisite() ? switch_to_blog( $site_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 );
}
/**
* Returns whether a particular 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:
*
* user_can_for_site( $user->ID, $site_id, 'edit_posts' );
* user_can_for_site( $user->ID, $site_id, 'edit_post', $post->ID );
* user_can_for_site( $user->ID, $site_id, 'edit_post_meta', $post->ID, $meta_key );
*
* @since 6.7.0
*
* @param int|WP_User $user User ID or object.
* @param int $site_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 user_can_for_site( $user, $site_id, $capability, ...$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() );
}
// Check if the blog ID is valid.
if ( ! is_numeric( $site_id ) || $site_id <= 0 ) {
return false;
}
$switched = is_multisite() ? switch_to_blog( $site_id ) : false;
$can = user_can( $user->ID, $capability, ...$args );
if ( $switched ) {
restore_current_blog();
}
return $can;
}
/**
* 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' );
في عالم تتسارع فيه تطورات الذكاء الاصطناعي، لم يعد دوره يقتصر على تنفيذ الأوامر وتحليل البيانات، بل أصبح قادراً على محاكاة المشاعر البشرية والتفاعل معها بطرق تثير التساؤلات. هل هذه مجرد برمجة متطورة أم أن الآلات قد تقترب من امتلاك وعي عاطفي حقيقي؟
دراسات حديثة في مجالات علم النفس وعلوم الحاسوب تشير إلى إمكانية تطوير أنظمة ذكاء اصطناعي قادرة على التعرف على المشاعر البشرية والتفاعل معها بشكل أكثر تعقيداً، لكن الخبراء ما زالوا منقسمين حول ما إذا كان هذا يعني أن الآلة يمكن أن “تشعر” بالفعل، أم أنها مجرد خوارزميات تحاكي العاطفة دون إدراك حقيقي لها.
حين ننظر في عيون شخص يبكي أو نسمع نبرة الفرح في صوت آخر، نحن لا ندرك المشاعر فحسب، بل نشعر بها أيضاً. هذه القدرة على الإحساس والتعاطف لطالما كانت ما يميز الإنسان عن الآلة. لكن اليوم، ومع تطور الذكاء الاصطناعي، بدأت الحدود تتلاشى. روبوتات تتحدث بحنان، أنظمة تواسي مستخدميها، وبرمجيات تتفاعل مع الحزن والفرح وكأنها تمتلك وعياً عاطفياً. فهل يمكن للآلة أن تشعر حقاً، أم أن كل ما تفعله مجرد محاكاة بارعة تخدعنا للحظات؟
“الذكاء الاصطناعي أشبه بدمية متطورة جداً”
قال أستاذ عبدالله الدالي، مطور برمجيات، إن: “الذكاء الاصطناعي مثل الممثل المحترف، لا يشعر بالمشاعر الحقيقية ولكنه يعرف أن يقلدها”. وأضاف أستاذ عبدالله أنه يمكن تصميم أنظمة الذكاء الاصطناعي بحيث تبدو وكأنها تمتلك مشاعر، حيث قال: “المبرمجين يصممون النظام بحيث يحلل الحديث أو الموقف مثل نبرة الصوت، ثم يختار رد مناسب من قاعدة بيانات بها عبارات جاهزة تعبر عن فرح أو زعل أو حتى تعاطف، بمعنى أنه يتم وضع سيناريو ثابت في البرمجة. على سبيل المثال، عندما تقول له ‘أنا حزين’، يرد الرد المبرمج عليه، مثلًا: ‘لماذا أنت حزين؟’”.
من جانبه، قال أستاذ وليد دبور، أستاذ مساعد الذكاء الاصطناعي بجامعة الأهرام الكندية: “الذكاء الاصطناعي الحالي أشبه بدمية متطورة جداً، تتحدث وتتحرك بذكاء لكنها لا تعيش ولا تشعر”. وأكد أستاذ وليد: “لا توجد طريقة لصنع مشاعر حقيقية في الآلات حالياً، وما يحدث هو مجرد تدريب لبيانات وخوارزميات الذكاء الاصطناعي. إذا دربته على نصوص عدوانية قد تصبح ردوده حادة، وإذا دربته على نصوص حزينة، سيقلد اللغة الحزينة، لكن هذا مجرد تمثيل وليس مشاعر حقيقية إطلاقاً”. وشرح أستاذ عبدالله قائلاً: “الإحساس عملية بيولوجية مرتبطة بالمخ والهرمونات عند البشر، بينما الذكاء الاصطناعي ليس إلا مجرد كود وخوارزميات، وهذه محاكاة ذكية جداً”.
“الجهاز العصبي والنفسي مرتبطان ببعضهما وميز الله بهما الكائنات الحية فقط”
قالت دكتورة ماري جرجس، استشارية صحة نفسية: “العناصر التي تشكل المشاعر توجد في الجزء الأوسط من الدماغ وهي منطقة قريبة من اللاوعي، وبالتالي لا يتحكم بها العقل أو المنطق. المشاعر هي كل ما يشعر به الإنسان من فرح وحب وحزن وغضب وغيرها”. وأكدت دكتورة ماري أنه: “لا يمكن لآلة أن تمتلك مشاعر حقيقية، وإلا ستكون مشاعر مزيفة عن طريق التحكم في برمجة تلك الآلة. يمكن للذكاء الاصطناعي أن يفعل أي شيء ويوصل لتقدمات كبيرة جداً، لكن من الصعب أن يتحكم في شيء له علاقة بالسلوكيات والنفسية والجهاز العصبي. فالجهاز العصبي والنفسي مرتبطان ببعضهما وميز الله بهما الكائنات الحية فقط، ومن الصعب أن تمتلكهما آلة. وفي حالة الوصول لتلك التقنيات وتنفيذها بشكل فعلي، ستكون مجرد محاكاة، وسيوضح ذلك في عدم وضوح الحالة الانفعالية بجودتها الطبيعية”.
“المشاعر تحتاج إلى وعي ذاتي”
يرى البعض أن المشاعر تحتاج إلى وعي ذاتي، وهو ما لا يمتلكه الذكاء الاصطناعي حتى الآن، بينما يعتقد آخرون أن المشاعر ليست سوى عمليات إدراكية يمكن برمجتها. بين الرؤيتين، يقف الجدل العلمي والفلسفي.
قالت أستاذة مارتينا سمير، معيدة بقسم الفلسفة في كلية البنات جامعة عين شمس: “المشاعر تعرف فلسفياً بأنها تفاعلات بيولوجية وفكرية للذات الإنسانية، والأنظمة الذكية هي فقط تحاكي العقل البشري، لكن مستحيل أن تصل بالفعل للشعور مثله لأنها لا تمتلك تجربة شعورية واقعية كالبشر. وفي حالة وصولها لذلك، ستكون مجرد محاكاة من خلال الخوارزميات والبيانات المغذية بها من قبل، ولكنها تحتاج لوعي ذاتي، فهي بالنهاية خدع ذكية”.
وأوضحت أستاذة مارتينا قائلة: “بالنسبة لمفهوم الثنائية بين العقل والجسد، تعني الانفصال بين العقل المعنوي والجسد المادي. وهذا المفهوم يعطي إمكانية لامتلاك الذكاء الاصطناعي مشاعر كما البشر، لأن في هذه الحالة لن يحتاج إلى جسم بيولوجي ووعي إنساني حقيقي لكي يشعر. وفي هذه الحالة قد يكون للأنظمة الذكية فرصة لتحمل وعي أو مشاعر من وجهة نظر الفلسفة”.
ورغم التقدم الهائل في الذكاء الاصطناعي، فإن إمكانية امتلاكه مشاعر حقيقية تظل محل جدل واسع. من منظور البرمجة، لا يزال الذكاء الاصطناعي يعتمد على خوارزميات تحاكي المشاعر دون إدراك حقيقي لها. علم النفس يؤكد أن المشاعر ترتبط بتجارب ذاتية وتفاعلات عصبية وهرمونية لا يمكن محاكاتها برمجيًا بشكل كامل. أما الفلسفة، فرغم بعض النظريات التي تفتح المجال أمام إمكانية وعي منفصل عن الجسد، فإنها تتفق مع العلم على أن الوعي والمشاعر كما نعرفها تظل معقدة إلى حد يجعل من الصعب جدًا، إن لم يكن مستحيلًا، أن تمتلكها الآلة. في النهاية، قد يتمكن الذكاء الاصطناعي من خداعنا باستجاباته العاطفية، لكنه سيبقى بلا إحساس حقيقي، مجرد محاكاة متقنة لمشاعر لا يعيشها بالفعل.
