<?php

/*

 * The error_reporting() function can be disabled in php.ini. On systems where that is the case,

 * it's best to add a dummy function to the wp-config.php file, but as this call to the function

 * is run prior to wp-config.php loading, it is wrapped in a function_exists() check.

 */

if ( function_exists( 'error_reporting' ) ) {

	/*

	 * Disable error reporting.

	 *

	 * Set this to error_reporting( -1 ) for debugging.

	 */

	error_reporting( 0 );

}

// Set ABSPATH for execution.

if ( ! defined( 'ABSPATH' ) ) {

	define( 'ABSPATH', dirname( __DIR__ ) . '/' );

}

define( 'WPINC', 'wp-includes' );

define( 'WP_CONTENT_DIR', ABSPATH . 'wp-content' );

require ABSPATH . 'wp-admin/includes/noop.php';

require ABSPATH . WPINC . '/theme.php';

require ABSPATH . WPINC . '/class-wp-theme-json-resolver.php';

require ABSPATH . WPINC . '/global-styles-and-settings.php';

require ABSPATH . WPINC . '/script-loader.php';

require ABSPATH . WPINC . '/version.php';

$protocol = $_SERVER['SERVER_PROTOCOL'];

if ( ! in_array( $protocol, array( 'HTTP/1.1', 'HTTP/2', 'HTTP/2.0', 'HTTP/3' ), true ) ) {

	$protocol = 'HTTP/1.0';

}

$load = $_GET['load'];

if ( is_array( $load ) ) {

	ksort( $load );

	$load = implode( '', $load );

}

$load = preg_replace( '/[^a-z0-9,_-]+/i', '', $load );

$load = array_unique( explode( ',', $load ) );

if ( empty( $load ) ) {

	header( "$protocol 400 Bad Request" );

	exit;

}

$rtl            = ( isset( $_GET['dir'] ) && 'rtl' === $_GET['dir'] );

$expires_offset = 31536000; // 1 year.

$out            = '';

$wp_styles = new WP_Styles();

wp_default_styles( $wp_styles );

$etag = $wp_styles->get_etag( $load );

if ( isset( $_SERVER['HTTP_IF_NONE_MATCH'] ) && stripslashes( $_SERVER['HTTP_IF_NONE_MATCH'] ) === $etag ) {

	header( "$protocol 304 Not Modified" );

	exit;

}

foreach ( $load as $handle ) {

	if ( ! array_key_exists( $handle, $wp_styles->registered ) ) {

		continue;

	}

	$style = $wp_styles->registered[ $handle ];

	if ( empty( $style->src ) ) {

		continue;

	}

	$path = ABSPATH . $style->src;

	if ( $rtl && ! empty( $style->extra['rtl'] ) ) {

		// All default styles have fully independent RTL files.

		$path = str_replace( '.min.css', '-rtl.min.css', $path );

	}

	$content = get_file( $path ) . "\n";

	// Note: str_starts_with() is not used here, as wp-includes/compat.php is not loaded in this file.

	if ( 0 === strpos( $style->src, '/' . WPINC . '/css/' ) ) {

		$content = str_replace( '../images/', '../' . WPINC . '/images/', $content );

		$content = str_replace( '../js/tinymce/', '../' . WPINC . '/js/tinymce/', $content );

		$content = str_replace( '../fonts/', '../' . WPINC . '/fonts/', $content );

		$out    .= $content;

	} else {

		$out .= str_replace( '../images/', 'images/', $content );

	}

}

header( "Etag: $etag" );

header( 'Content-Type: text/css; charset=UTF-8' );

header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + $expires_offset ) . ' GMT' );

header( "Cache-Control: public, max-age=$expires_offset" );

echo $out;

exit;