64 lines
1.9 KiB
PHP
64 lines
1.9 KiB
PHP
<?php
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namespace Imagify\Webp\RewriteRules;
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defined( 'ABSPATH' ) || die( 'Cheatin’ uh?' );
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/**
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* Add and remove rewrite rules to the web.config file to display WebP images on the site.
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*
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* @since 1.9
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* @author Grégory Viguier
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*/
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class IIS extends \Imagify\WriteFile\AbstractIISDirConfFile {
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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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* @author Grégory Viguier
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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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* @access protected
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* @source https://github.com/igrigorik/webp-detect/blob/master/iis.config
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* @author Grégory Viguier
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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 = $this->get_extensions_pattern();
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$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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<!-- @parent /configuration/system.webServer/rewrite/rules -->
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<rule name="' . esc_attr( static::TAG_NAME ) . ' 2">
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<match url="^(' . $home_root . '.+)\.(' . $extensions . ')$" ignoreCase="true" />
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<conditions logicalGrouping="MatchAll">
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<add input="{HTTP_ACCEPT}" pattern="image/webp" ignoreCase="false" />
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<add input="{DOCUMENT_ROOT}/{R:1}{R:2}.webp" matchType="IsFile" />
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</conditions>
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<action type="Rewrite" url="{R:1}{R:2}.webp" logRewrittenUrl="true" />
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<serverVariables>
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<set name="ACCEPTS_WEBP" value="true" />
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</serverVariables>
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</rule>
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<!-- @parent /configuration/system.webServer/rewrite/outboundRules -->
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<rule preCondition="IsWebp" name="' . esc_attr( static::TAG_NAME ) . ' 3">
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<match serverVariable="RESPONSE_Vary" pattern=".*" />
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<action type="Rewrite" value="Accept"/>
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</rule>
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<preConditions name="' . esc_attr( static::TAG_NAME ) . ' 4">
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<preCondition name="IsWebp">
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<add input="{ACCEPTS_WEBP}" pattern="true" ignoreCase="false" />
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</preCondition>
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</preConditions>' );
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}
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}
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