66 lines
1.6 KiB
PHP
66 lines
1.6 KiB
PHP
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<?php
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namespace App\Observers;
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use HTMLPurifier;
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use App\WebMention;
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use HTMLPurifier_Config;
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class WebMentionObserver
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{
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/**
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* Listen for the created event.
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*
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* @param WebMention $webmention
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* @return void
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*/
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public function created(WebMention $webmention)
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{
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$this->addFilteredHTML($webmention);
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}
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/**
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* Listen for the updated event.
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*
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* @param WebMention $webmention
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* @return void
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*/
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public function updated(WebMention $webmention)
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{
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$this->addFilteredHTML($webmention);
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}
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/**
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* Filter the HTML in a reply webmention.
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*
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* @param WebMention The WebMention model
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* @return void
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*/
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private function addFilteredHTML(WebMention $webmention)
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{
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$mf2 = json_decode($webmention->mf2);
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if (isset($mf2['items'][0]['properties']['content'][0]['html'])) {
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$mf2['items'][0]['properties']['content'][0]['html_purified'] = $this->useHTMLPurifier(
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$mf2['items'][0]['properties']['content'][0]['html']
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);
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}
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$webmention->mf2 = json_encode($mf2);
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$webmetion->save();
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}
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/**
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* Set up and use HTMLPurifer on some HTML.
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*
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* @param string The HTML to be processed
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* @return string The processed HTML
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*/
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private function useHTMLPurifier($html)
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{
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$config = HTMLPurifier_Config::createDefault();
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$config->set('Cache.SerializerPath', storage_path() . '/HTMLPurifier');
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$purifier = new HTMLPurifier($config);
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return $purifier->purify($html);
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}
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}
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