62 lines
1.4 KiB
PHP
62 lines
1.4 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Imagify\Webp\RewriteRules;
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use Imagify\WriteFile\AbstractApacheDirConfFile;
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/**
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* Add and remove rewrite rules to the .htaccess file to display WebP images on the site.
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*
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* @since 1.9
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*/
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class Apache extends AbstractApacheDirConfFile {
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/**
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* Name of the tag used as block delemiter.
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*
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* @var string
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* @since 1.9
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*/
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const TAG_NAME = 'Imagify: rewrite rules for webp';
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/**
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* Get unfiltered new contents to write into the file.
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*
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* @since 1.9
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* @source https://github.com/vincentorback/WebP-images-with-htaccess
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*
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* @return string
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*/
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protected function get_raw_new_contents() {
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$extensions = $this->get_extensions_pattern();
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$extensions = str_replace( '|webp', '', $extensions );
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$home_root = wp_parse_url( home_url( '/' ) );
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$home_root = $home_root['path'];
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return trim( '
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<IfModule mod_setenvif.c>
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# Vary: Accept for all the requests to jpeg, png, and gif.
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SetEnvIf Request_URI "\.(' . $extensions . ')$" REQUEST_image
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</IfModule>
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<IfModule mod_rewrite.c>
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RewriteEngine On
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RewriteBase ' . $home_root . '
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# Check if browser supports WebP images.
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RewriteCond %{HTTP_ACCEPT} image/webp
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# Check if WebP replacement image exists.
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RewriteCond %{REQUEST_FILENAME}.webp -f
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# Serve WebP image instead.
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RewriteRule (.+)\.(' . $extensions . ')$ $1.$2.webp [T=image/webp,NC]
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</IfModule>
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<IfModule mod_headers.c>
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Header append Vary Accept env=REQUEST_image
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</IfModule>' );
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}
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}
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