97 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			97 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * Sitemaps: WP_Sitemaps_Index class.
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 *
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 * Generates the sitemap index.
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 *
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 * @package WordPress
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 * @subpackage Sitemaps
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 * @since 5.5.0
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 */
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/**
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 * Class WP_Sitemaps_Index.
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 * Builds the sitemap index page that lists the links to all of the sitemaps.
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 *
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 * @since 5.5.0
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 */
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#[AllowDynamicProperties]
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class WP_Sitemaps_Index {
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	/**
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	 * The main registry of supported sitemaps.
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	 *
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	 * @since 5.5.0
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	 * @var WP_Sitemaps_Registry
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	 */
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	protected $registry;
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	/**
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	 * Maximum number of sitemaps to include in an index.
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	 *
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	 * @since 5.5.0
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	 *
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	 * @var int Maximum number of sitemaps.
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	 */
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	private $max_sitemaps = 50000;
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	/**
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	 * WP_Sitemaps_Index constructor.
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	 *
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	 * @since 5.5.0
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	 *
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	 * @param WP_Sitemaps_Registry $registry Sitemap provider registry.
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	 */
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	public function __construct( WP_Sitemaps_Registry $registry ) {
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		$this->registry = $registry;
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	}
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	/**
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	 * Gets a sitemap list for the index.
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	 *
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	 * @since 5.5.0
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	 *
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	 * @return array[] Array of all sitemaps.
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	 */
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	public function get_sitemap_list() {
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		$sitemaps = array();
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		$providers = $this->registry->get_providers();
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		/* @var WP_Sitemaps_Provider $provider */
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		foreach ( $providers as $name => $provider ) {
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			$sitemap_entries = $provider->get_sitemap_entries();
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			// Prevent issues with array_push and empty arrays on PHP < 7.3.
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			if ( ! $sitemap_entries ) {
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				continue;
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			}
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			// Using array_push is more efficient than array_merge in a loop.
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			array_push( $sitemaps, ...$sitemap_entries );
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			if ( count( $sitemaps ) >= $this->max_sitemaps ) {
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				break;
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			}
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		}
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		return array_slice( $sitemaps, 0, $this->max_sitemaps, true );
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	}
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	/**
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	 * Builds the URL for the sitemap index.
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	 *
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	 * @since 5.5.0
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	 *
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	 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
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	 *
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	 * @return string The sitemap index URL.
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	 */
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	public function get_index_url() {
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		global $wp_rewrite;
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		if ( ! $wp_rewrite->using_permalinks() ) {
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			return home_url( '/?sitemap=index' );
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		}
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		return home_url( '/wp-sitemap.xml' );
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	}
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}
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