khaihihi

wp-content/plugins/wordpress-seo/admin/onpage/class-onpage.php

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+<?php
+/**
+ * WPSEO plugin file.
+ *
+ * @package WPSEO\Admin
+ */
+
+/**
+ * Handles the request for getting the Ryte status.
+ */
+class WPSEO_OnPage implements WPSEO_WordPress_Integration {
+
+	/**
+	 * The name of the user meta key for storing the dismissed status.
+	 *
+	 * @var string
+	 */
+	const USER_META_KEY = 'wpseo_dismiss_onpage';
+
+	/**
+	 * Is the request started by pressing the fetch button.
+	 *
+	 * @var bool
+	 */
+	private $is_manual_request = false;
+
+	/**
+	 * Constructs the object.
+	 */
+	public function __construct() {
+		$this->catch_redo_listener();
+	}
+
+	/**
+	 * Sets up the hooks.
+	 *
+	 * @return void
+	 */
+	public function register_hooks() {
+		// Adds admin notice if necessary.
+		add_filter( 'admin_init', [ $this, 'show_notice' ] );
+
+		if ( ! self::is_active() ) {
+			return;
+		}
+
+		// Adds weekly schedule to the cron job schedules.
+		add_filter( 'cron_schedules', [ $this, 'add_weekly_schedule' ] );
+
+		// Sets the action for the Ryte fetch.
+		add_action( 'wpseo_onpage_fetch', [ $this, 'fetch_from_onpage' ] );
+	}
+
+	/**
+	 * Shows a notice when the website is not indexable.
+	 *
+	 * @return void
+	 */
+	public function show_notice() {
+		$notification        = $this->get_indexability_notification();
+		$notification_center = Yoast_Notification_Center::get();
+
+		if ( $this->should_show_notice() ) {
+			$notification_center->add_notification( $notification );
+
+			return;
+		}
+
+		$notification_center->remove_notification( $notification );
+	}
+
+	/**
+	 * Determines if we can use the functionality.
+	 *
+	 * @return bool True if this functionality can be used.
+	 */
+	public static function is_active() {
+		if ( wp_doing_ajax() ) {
+			return false;
+		}
+
+		if ( ! WPSEO_Options::get( 'onpage_indexability' ) ) {
+			return false;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Hooks to run on plugin activation.
+	 */
+	public function activate_hooks() {
+		if ( $this->get_option()->is_enabled() ) {
+			$this->schedule_cron();
+
+			return;
+		}
+
+		$this->unschedule_cron();
+	}
+
+	/**
+	 * Adds a weekly cron schedule.
+	 *
+	 * @param array $schedules Currently scheduled items.
+	 *
+	 * @return array Enriched list of schedules.
+	 */
+	public function add_weekly_schedule( $schedules ) {
+		if ( ! is_array( $schedules ) ) {
+			$schedules = [];
+		}
+
+		$schedules['weekly'] = [
+			'interval' => WEEK_IN_SECONDS,
+			'display'  => __( 'Once Weekly', 'wordpress-seo' ),
+		];
+
+		return $schedules;
+	}
+
+	/**
+	 * Fetches the data from Ryte.
+	 *
+	 * @return bool True if this has been run.
+	 */
+	public function fetch_from_onpage() {
+		$onpage_option = $this->get_option();
+		if ( ! $onpage_option->should_be_fetched() ) {
+			return false;
+		}
+
+		$new_status = $this->request_indexability();
+		if ( $new_status === false ) {
+			return false;
+		}
+
+		// Updates the timestamp in the option.
+		$onpage_option->set_last_fetch( time() );
+
+		// The currently indexability status.
+		$old_status = $onpage_option->get_status();
+
+		$onpage_option->set_status( $new_status );
+		$onpage_option->save_option();
+
+		// Check if the status has been changed.
+		if ( $old_status !== $new_status && $new_status !== WPSEO_OnPage_Option::CANNOT_FETCH ) {
+			$this->notify_admins();
+		}
+
+		return true;
+	}
+
+	/**
+	 * Retrieves the option to use.
+	 *
+	 * @return WPSEO_OnPage_Option The option.
+	 */
+	protected function get_option() {
+		return new WPSEO_OnPage_Option();
+	}
+
+	/**
+	 * Builds the indexability notification.
+	 *
+	 * @return Yoast_Notification The notification.
+	 */
+	private function get_indexability_notification() {
+		$notice = sprintf(
+			/* translators: 1: opens a link to a related knowledge base article. 2: closes the link */
+			__( '%1$sYour homepage cannot be indexed by search engines%2$s. This is very bad for SEO and should be fixed.', 'wordpress-seo' ),
+			'<a href="' . WPSEO_Shortlinker::get( 'https://yoa.st/onpageindexerror' ) . '" target="_blank">',
+			'</a>'
+		);
+
+		return new Yoast_Notification(
+			$notice,
+			[
+				'type'         => Yoast_Notification::ERROR,
+				'id'           => 'wpseo-dismiss-onpageorg',
+				'capabilities' => 'wpseo_manage_options',
+			]
+		);
+	}
+
+	/**
+	 * Sends a request to Ryte to get the indexability.
+	 *
+	 * @return int|bool The indexability value.
+	 */
+	protected function request_indexability() {
+		$parameters = [];
+		if ( $this->wordfence_protection_enabled() ) {
+			$parameters['wf_strict'] = 1;
+		}
+
+		$request  = new WPSEO_OnPage_Request();
+		$response = $request->do_request( get_option( 'home' ), $parameters );
+
+		if ( isset( $response['is_indexable'] ) ) {
+			return (int) $response['is_indexable'];
+		}
+
+		return WPSEO_OnPage_Option::CANNOT_FETCH;
+	}
+
+	/**
+	 * Should the notice being given?
+	 *
+	 * @return bool True if a notice should be shown.
+	 */
+	protected function should_show_notice() {
+		if ( ! $this->get_option()->is_enabled() ) {
+			return false;
+		}
+
+		// If development mode is on or the blog is not public, just don't show this notice.
+		if ( WPSEO_Utils::is_development_mode() || ( get_option( 'blog_public' ) === '0' ) ) {
+			return false;
+		}
+
+		return $this->get_option()->get_status() === WPSEO_OnPage_Option::IS_NOT_INDEXABLE;
+	}
+
+	/**
+	 * Notifies the admins.
+	 *
+	 * @return void
+	 */
+	protected function notify_admins() {
+		/*
+		 * Let's start showing the notices to all admins by removing the hide-notice meta data for each admin resulting
+		 * in popping up the notice again.
+		 */
+		delete_metadata( 'user', 0, self::USER_META_KEY, '', true );
+	}
+
+	/**
+	 * Schedules the cronjob to get the new indexibility status.
+	 *
+	 * @return void
+	 */
+	private function schedule_cron() {
+		if ( wp_next_scheduled( 'wpseo_onpage_fetch' ) ) {
+			return;
+		}
+
+		wp_schedule_event( time(), 'weekly', 'wpseo_onpage_fetch' );
+	}
+
+	/**
+	 * Unschedules the cronjob to get the new indexibility status.
+	 *
+	 * @return void
+	 */
+	private function unschedule_cron() {
+		if ( ! wp_next_scheduled( 'wpseo_onpage_fetch' ) ) {
+			return;
+		}
+
+		wp_clear_scheduled_hook( 'wpseo_onpage_fetch' );
+	}
+
+	/**
+	 * Redo the fetch request for Ryte.
+	 *
+	 * @return void
+	 */
+	private function catch_redo_listener() {
+		if ( ! self::is_active() ) {
+			return;
+		}
+
+		if ( filter_input( INPUT_GET, 'wpseo-redo-onpage' ) === '1' ) {
+			$this->is_manual_request = true;
+
+			add_action( 'admin_init', [ $this, 'fetch_from_onpage' ] );
+		}
+	}
+
+	/**
+	 * Checks if WordFence protects the site against 'fake' Google crawlers.
+	 *
+	 * @return boolean True if WordFence protects the site.
+	 */
+	private function wordfence_protection_enabled() {
+		if ( ! class_exists( 'wfConfig' ) ) {
+			return false;
+		}
+
+		if ( ! method_exists( 'wfConfig', 'get' ) ) {
+			return false;
+		}
+
+		return (bool) wfConfig::get( 'blockFakeBots' );
+	}
+}