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<?php |
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declare(strict_types=1); |
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|
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namespace Imagify\Webp\RewriteRules; |
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|
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use Imagify\WriteFile\AbstractIISDirConfFile; |
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|
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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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*/ |
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class IIS extends AbstractIISDirConfFile { |
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|
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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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/** |
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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/igrigorik/webp-detect/blob/master/iis.config |
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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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|
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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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|
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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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