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wp-content/plugins/jetpack-boost/app/lib/class-site-urls.php

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+<?php
+
+namespace Automattic\Jetpack_Boost\Lib;
+
+class Site_Urls {
+
+	public static function get( $limit = 100 ) {
+		$core_urls = self::get_wp_core_urls();
+		$post_urls = self::cleanup_post_urls(
+			self::get_post_urls( $limit ),
+			wp_list_pluck(
+				$core_urls,
+				'url'
+			)
+		);
+
+		$urls = array_slice(
+			array_merge(
+				$core_urls,
+				$post_urls
+			),
+			0,
+			$limit
+		);
+
+		/**
+		 * Filters the list of site URLs used by the Image Size Analysis.
+		 *
+		 * @since 3.7.0
+		 *
+		 * @param array $urls An array of URLs.
+		 * @param int   $limit The maximum number of URLs that should be returned.
+		 */
+		return apply_filters( 'jetpack_boost_site_urls', $urls, $limit );
+	}
+
+	private static function get_wp_core_urls() {
+		$urls = array();
+
+		$front_page = get_option( 'page_on_front' );
+		if ( ! empty( $front_page ) ) {
+			$urls['core_front_page'] = array(
+				'url'      => get_permalink( $front_page ),
+				'modified' => get_post_modified_time( 'Y-m-d H:i:s', false, $front_page ),
+				'group'    => 'core_front_page',
+			);
+		} else {
+			$urls['core_front_page'] = array(
+				'url'      => home_url( '/' ),
+				'modified' => current_time( 'Y-m-d H:i:s' ),
+				'group'    => 'core_front_page',
+			);
+		}
+
+		$posts_page = get_option( 'page_for_posts' );
+		if ( ! empty( $posts_page ) ) {
+			$urls['core_posts_page'] = array(
+				'url'      => get_permalink( $posts_page ),
+				'modified' => get_post_modified_time( 'Y-m-d H:i:s', false, $posts_page ),
+				'group'    => 'other',
+			);
+		}
+
+		return $urls;
+	}
+
+	private static function get_post_urls( $limit ) {
+		global $wpdb;
+
+		$public_post_types       = self::get_public_post_types();
+		$post_types_placeholders = implode(
+			',',
+			array_fill(
+				0,
+				count( $public_post_types ),
+				'%s'
+			)
+		);
+
+		$prepare_values   = $public_post_types;
+		$prepare_values[] = $limit;
+
+		// phpcs:ignore WordPress.DB.DirectDatabaseQuery
+		$results = $wpdb->get_results(
+			$wpdb->prepare(
+				// phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+				"SELECT ID, post_modified FROM {$wpdb->posts} WHERE post_status = 'publish' AND post_type IN ({$post_types_placeholders}) ORDER BY post_modified DESC LIMIT 0, %d",
+				$prepare_values
+			)
+		);
+
+		$urls = array();
+		foreach ( $results as $result ) {
+			$urls[ 'post_id_' . $result->ID ] = array(
+				'url'      => get_permalink( $result->ID ),
+				'modified' => get_post_modified_time( 'Y-m-d H:i:s', false, $result ),
+				'group'    => self::get_post_group( $result ),
+			);
+		}
+
+		return $urls;
+	}
+
+	/**
+	 * Removes duplicate URLs from the $post_urls list
+	 * based on the additional URLs.
+	 *
+	 * @param  array $post_urls       List of URLs to cleanup.
+	 * @param  array $additional_urls List of URLs to lookup while cleaning.
+	 *
+	 * @return array
+	 */
+	private static function cleanup_post_urls( $post_urls, $additional_urls ) {
+		$clean = array();
+
+		foreach ( $post_urls as $key => $item ) {
+			if ( in_array( $item['url'], $additional_urls, true ) ) {
+				continue;
+			}
+
+			$clean[ $key ] = $item;
+		}
+
+		return $clean;
+	}
+
+	private static function get_public_post_types() {
+		$post_types = get_post_types(
+			array(
+				'public' => true,
+			)
+		);
+		unset( $post_types['attachment'] );
+
+		return array_values(
+			array_filter(
+				$post_types,
+				'is_post_type_viewable'
+			)
+		);
+	}
+
+	/**
+	 * Returns the group for the post.
+	 *
+	 * @param \WP_Post $p Post object.
+	 *
+	 * @return string
+	 */
+	private static function get_post_group( $p ) {
+		$post_type = get_post_type( $p->ID );
+		if ( 'post' === $post_type || 'page' === $post_type ) {
+			return 'singular_' . $post_type;
+		}
+
+		return 'other';
+	}
+}