SFP Basic Auth

<?php
/**
 * Basic Auth support for Stage File Proxy requests
 *
 * @package Stage_File_Proxy
 */

/**
 * Add Basic Auth credentials to SFP requests
 *
 * @param array  $request WP_HTTP args.
 * @param string $url Request URL.
 * @return mixed
 */
function sfp_basic_auth( $request, $url ) {
	if ( ! function_exists( 'sfp_get_base_url' ) ) {
		return $request;
	}

	$sfp_url    = sfp_get_base_url();
	$sfp_domain = wp_parse_url( $sfp_url, PHP_URL_HOST );

	if ( ! empty( $sfp_domain ) && wp_parse_url( $url, PHP_URL_HOST ) === $sfp_domain ) {
		$request['headers']['Authorization'] = 'Basic ' . base64_encode( 'foo:bar' );
	}

	return $request;
}
add_filter( 'http_request_args', 'sfp_basic_auth', 10, 2 );