Source
File: wp-includes/customize/class-wp-customize-nav-menu-item-setting.php
public function sanitize( $menu_item_value ) {
// Menu is marked for deletion.
if ( false === $menu_item_value ) {
return $menu_item_value;
}
// Invalid.
if ( ! is_array( $menu_item_value ) ) {
return null;
}
$default = array(
'object_id' => 0,
'object' => '',
'menu_item_parent' => 0,
'position' => 0,
'type' => 'custom',
'title' => '',
'url' => '',
'target' => '',
'attr_title' => '',
'description' => '',
'classes' => '',
'xfn' => '',
'status' => 'publish',
'original_title' => '',
'nav_menu_term_id' => 0,
'_invalid' => false,
);
$menu_item_value = array_merge( $default, $menu_item_value );
$menu_item_value = wp_array_slice_assoc( $menu_item_value, array_keys( $default ) );
$menu_item_value['position'] = intval( $menu_item_value['position'] );
foreach ( array( 'object_id', 'menu_item_parent', 'nav_menu_term_id' ) as $key ) {
// Note we need to allow negative-integer IDs for previewed objects not inserted yet.
$menu_item_value[ $key ] = intval( $menu_item_value[ $key ] );
}
foreach ( array( 'type', 'object', 'target' ) as $key ) {
$menu_item_value[ $key ] = sanitize_key( $menu_item_value[ $key ] );
}
foreach ( array( 'xfn', 'classes' ) as $key ) {
$value = $menu_item_value[ $key ];
if ( ! is_array( $value ) ) {
$value = explode( ' ', $value );
}
$menu_item_value[ $key ] = implode( ' ', array_map( 'sanitize_html_class', $value ) );
}
$menu_item_value['original_title'] = sanitize_text_field( $menu_item_value['original_title'] );
// Apply the same filters as when calling wp_insert_post().
/** This filter is documented in wp-includes/post.php */
$menu_item_value['title'] = wp_unslash( apply_filters( 'title_save_pre', wp_slash( $menu_item_value['title'] ) ) );
/** This filter is documented in wp-includes/post.php */
$menu_item_value['attr_title'] = wp_unslash( apply_filters( 'excerpt_save_pre', wp_slash( $menu_item_value['attr_title'] ) ) );
/** This filter is documented in wp-includes/post.php */
$menu_item_value['description'] = wp_unslash( apply_filters( 'content_save_pre', wp_slash( $menu_item_value['description'] ) ) );
if ( '' !== $menu_item_value['url'] ) {
$menu_item_value['url'] = esc_url_raw( $menu_item_value['url'] );
if ( '' === $menu_item_value['url'] ) {
return new WP_Error( 'invalid_url', __( 'Invalid URL.' ) ); // Fail sanitization if URL is invalid.
}
}
if ( 'publish' !== $menu_item_value['status'] ) {
$menu_item_value['status'] = 'draft';
}
$menu_item_value['_invalid'] = (bool) $menu_item_value['_invalid'];
/** This filter is documented in wp-includes/class-wp-customize-setting.php */
return apply_filters( "customize_sanitize_{$this->id}", $menu_item_value, $this );
}