register( 'webhook' );
/**
* Validate a webhook URL with temporarily extended allowed ports.
*
* WordPress's wp_http_validate_url() only allows ports 80, 443, and 8080.
* This function temporarily hooks into the `http_allowed_safe_ports` filter
* to add extra ports during validation, then removes the filter immediately.
*
* By default only port 8443 is added. Use the `forminator_webhook_allowed_ports`
* filter to customise the list.
*
* @since 1.53.0
*
* @param string $url The webhook URL to validate.
*
* @return string|false The validated URL on success, false on failure.
*/
function forminator_webhook_validate_url( $url ) {
add_filter( 'http_allowed_safe_ports', 'forminator_webhook_extend_ports' );
$result = wp_http_validate_url( $url );
remove_filter( 'http_allowed_safe_ports', 'forminator_webhook_extend_ports' );
return $result;
}
/**
* Extend the list of allowed safe ports for webhook URL validation.
*
* @since 1.53.0
*
* @param int[] $ports Existing allowed port numbers.
* @return int[] Modified array with extra ports added.
*/
function forminator_webhook_extend_ports( $ports ) {
/**
* Filter the extra ports allowed for webhook URLs.
*
* @since 1.53.0
*
* @param int[] $extra_ports Array of additional port numbers. Default: array( 8443 ).
*/
$extra_ports = apply_filters( 'forminator_webhook_allowed_ports', array( 8443 ) );
$extra_ports = array_map( 'absint', array_filter( (array) $extra_ports ) );
return array_unique( array_merge( (array) $ports, $extra_ports ) );
}