<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName

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// phpcs:disable Generic.Classes.DuplicateClassName.Found -- sitemap-builder.php will require correct class file.

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/**

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* Sitemaps (per the protocol) are essentially lists of XML fragments;

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* lists which are subject to size constraints. The Jetpack_Sitemap_Buffer_Page

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* extends the Jetpack_Sitemap_Buffer class to represent the single page sitemap

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* buffer.

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*

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* @since 5.3.0

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* @package automattic/jetpack

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*/

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if ( ! defined( 'ABSPATH' ) ) {

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exit( 0 );

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}

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/**

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* A buffer for constructing sitemap page xml files.

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*

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* @since 5.3.0

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*/

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class Jetpack_Sitemap_Buffer_Page extends Jetpack_Sitemap_Buffer {

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/**

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* Jetpack_Sitemap_Buffer_Page constructor.

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*

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* @param int $item_limit The maximum size of the buffer in items.

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* @param int $byte_limit The maximum size of the buffer in bytes.

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* @param string $time The initial datetime of the buffer. Must be in 'YYYY-MM-DD hh:mm:ss' format.

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*/

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public function __construct( $item_limit, $byte_limit, $time = '1970-01-01 00:00:00' ) {

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parent::__construct( $item_limit, $byte_limit, $time );

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$this->doc->appendChild(

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$this->doc->createComment( "generator='jetpack-" . JETPACK__VERSION . "'" )

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);

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$this->doc->appendChild(

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$this->doc->createComment( 'Jetpack_Sitemap_Buffer_Page' )

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);

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$this->doc->appendChild(

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$this->doc->createProcessingInstruction(

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'xml-stylesheet',

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'type="text/xsl" href="' . $this->finder->construct_sitemap_url( 'sitemap.xsl' ) . '"'

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)

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);

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}

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/**

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* Returns a DOM element that contains all single page sitemap elements.

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*/

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protected function get_root_element() {

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if ( ! isset( $this->root ) ) {

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/**

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* Filter the attribute value pairs used for namespace and namespace URI mappings.

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*

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* @module sitemaps

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*

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* @since 3.9.0

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*

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* @param array $namespaces Associative array with namespaces and namespace URIs.

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*/

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$namespaces = apply_filters(

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'jetpack_sitemap_ns',

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array(

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'xmlns:xsi' => 'http://www.w3.org/2001/XMLSchema-instance',

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'xsi:schemaLocation' => 'http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd',

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'xmlns' => 'http://www.sitemaps.org/schemas/sitemap/0.9',

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)

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);

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$this->root = $this->doc->createElement( 'urlset' );

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foreach ( $namespaces as $name => $value ) {

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$this->root->setAttribute( $name, $value );

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}

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$this->doc->appendChild( $this->root );

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$this->byte_capacity -= strlen( $this->doc->saveXML( $this->root ) );

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}

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return $this->root;

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}

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}

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