<?php
namespace Imagify\Webp\RewriteRules;
defined( 'ABSPATH' ) || die( 'Cheatin’ uh?' );
/**
* Add and remove rewrite rules to the imagify.conf file to display WebP images on the site.
*
* @since 1.9
* @author Grégory Viguier
*/
class Nginx extends \Imagify\WriteFile\AbstractNginxDirConfFile {
/**
* Name of the tag used as block delemiter.
*
* @var string
* @since 1.9
* @author Grégory Viguier
*/
const TAG_NAME = 'Imagify: rewrite rules for webp';
/**
* Get unfiltered new contents to write into the file.
*
* @since 1.9
* @access protected
* @author Grégory Viguier
*
* @return string
*/
protected function get_raw_new_contents() {
$extensions = $this->get_extensions_pattern();
$home_root = wp_parse_url( home_url( '/' ) );
$home_root = $home_root['path'];
return trim( '
location ~* ^(' . $home_root . '.+)\.(' . $extensions . ')$ {
add_header Vary Accept;
if ($http_accept ~* "webp"){
set $imwebp A;
}
if (-f $request_filename.webp) {
set $imwebp "${imwebp}B";
}
if ($imwebp = AB) {
rewrite ^(.*) $1.webp;
}
}' );
}
}