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<?php

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/**

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* Feed API: WP_SimplePie_Sanitize_KSES class

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* @package WordPress

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* @subpackage Feed

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* @since 4.7.0

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/**

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* Core class used to implement SimplePie feed sanitization.

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* Extends the SimplePie_Sanitize class to use KSES, because

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* we cannot universally count on DOMDocument being available.

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* @since 3.5.0

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#[AllowDynamicProperties]

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class WP_SimplePie_Sanitize_KSES extends SimplePie_Sanitize {

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/**

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* WordPress SimplePie sanitization using KSES.

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* Sanitizes the incoming data, to ensure that it matches the type of data expected, using KSES.

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* @since 3.5.0

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* @param mixed $data The data that needs to be sanitized.

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* @param int $type The type of data that it's supposed to be.

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* @param string $base Optional. The `xml:base` value to use when converting relative

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* URLs to absolute ones. Default empty.

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* @return mixed Sanitized data.

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public function sanitize( $data, $type, $base = '' ) {

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$data = trim( $data );

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if ( $type & SIMPLEPIE_CONSTRUCT_MAYBE_HTML ) {

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if ( preg_match( '/(&(#(x[0-9a-fA-F]+|[0-9]+)|[a-zA-Z0-9]+)|<\/[A-Za-z][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E]*' . SIMPLEPIE_PCRE_HTML_ATTRIBUTE . '>)/', $data ) ) {

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$type |= SIMPLEPIE_CONSTRUCT_HTML;

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} else {

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$type |= SIMPLEPIE_CONSTRUCT_TEXT;

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}

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}

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if ( $type & SIMPLEPIE_CONSTRUCT_BASE64 ) {

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$data = base64_decode( $data );

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}

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if ( $type & ( SIMPLEPIE_CONSTRUCT_HTML | SIMPLEPIE_CONSTRUCT_XHTML ) ) {

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$data = wp_kses_post( $data );

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if ( 'UTF-8' !== $this->output_encoding ) {

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$data = $this->registry->call( 'Misc', 'change_encoding', array( $data, 'UTF-8', $this->output_encoding ) );

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}

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return $data;

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} else {

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return parent::sanitize( $data, $type, $base );

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}

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}

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}

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