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wp-content/plugins/jetpack-boost/app/data-sync/class-cornerstone-pages-entry.php

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+<?php
+
+namespace Automattic\Jetpack_Boost\Data_Sync;
+
+use Automattic\Jetpack\WP_JS_Data_Sync\Contracts\Entry_Can_Get;
+use Automattic\Jetpack\WP_JS_Data_Sync\Contracts\Entry_Can_Set;
+use Automattic\Jetpack_Boost\Lib\Environment_Change_Detector;
+
+class Cornerstone_Pages_Entry implements Entry_Can_Get, Entry_Can_Set {
+
+	private $option_key;
+
+	public function __construct( $option_key ) {
+		$this->option_key = 'jetpack_boost_ds_' . $option_key;
+	}
+
+	public function get( $fallback_value = array() ) {
+		$urls = get_option( $this->option_key, array() );
+
+		if ( empty( $urls ) && ! empty( $fallback_value ) ) {
+			$urls = $fallback_value;
+			$this->set( $urls );
+		}
+
+		/**
+		 * Filters the list of cornerstone pages. This list only includes the custom pages.
+		 * If you want the full list, use `jetpack_boost_cornerstone_pages_list_complete` instead.
+		 *
+		 * @since 3.7.0
+		 *
+		 * @param array $urls An array of absolute URLs.
+		 */
+		return apply_filters( 'jetpack_boost_cornerstone_pages_list', array_map( array( $this, 'transform_to_absolute' ), $urls ) );
+	}
+
+	public function set( $value ) {
+		$value = $this->sanitize_value( $value );
+
+		$updated = update_option( $this->option_key, $value );
+		if ( $updated ) {
+			( new Environment_Change_Detector() )->handle_cornerstone_pages_list_update();
+		}
+	}
+
+	private function sanitize_value( $value ) {
+		if ( is_array( $value ) ) {
+			$value = array_values( array_unique( array_map( 'untrailingslashit', array_map( array( $this, 'transform_to_relative' ), $value ) ) ) );
+		} else {
+			$value = array();
+		}
+
+		return $value;
+	}
+
+	private function transform_to_relative( $url ) {
+		$url = trim( $url );
+
+		// Remove the home_url from the beginning of the URL if it exists.
+		if ( strpos( $url, home_url() ) === 0 ) {
+			$url = substr( $url, strlen( home_url() ) );
+		}
+
+		// Ensure the URL starts with a slash.
+		if ( $url !== '' ) {
+			$url = ltrim( $url, '/' );
+			$url = '/' . $url;
+		}
+
+		return $url;
+	}
+
+	private function transform_to_absolute( $url ) {
+		return home_url( $url );
+	}
+}