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class-jetpack-seo-posts.php
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class-jetpack-seo-utils.php
class-jetpack-seo.php
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Edit File: class-jetpack-seo-utils.php
<?php /** * Class containing utility static methods that other SEO tools are relying on. * * @package automattic/jetpack */ /** * Class containing utility static methods that other SEO tools are relying on. */ class Jetpack_SEO_Utils { /** * Site option name used to store front page meta description. */ const FRONT_PAGE_META_OPTION = 'advanced_seo_front_page_description'; /** * The LEGACY_META_OPTION is used to support legacy usage on WPcom simple sites (free or paid). * For WPorg JP sites, the JP seo-tools features were made free for all sites (free or paid). */ const LEGACY_META_OPTION = 'seo_meta_description'; /** * Used to check whether SEO tools are enabled for given site. * * @return bool True if SEO tools are enabled, false otherwise. */ public static function is_enabled_jetpack_seo() { /** * Can be used by SEO plugin authors to disable the conflicting output of SEO Tools. * * @module seo-tools * * @since 5.0.0 * * @param bool True if SEO Tools should be disabled, false otherwise. */ if ( apply_filters( 'jetpack_disable_seo_tools', false ) ) { return false; } if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { return wpcom_site_has_feature( 'advanced-seo', get_current_blog_id() ); } return true; } /** * Checks if this option was set while it was freely available to all WPcom simple sites. * * @return bool True if we should enable legacy usage, false otherwise. */ public static function has_legacy_front_page_meta() { return ! self::is_enabled_jetpack_seo() && get_option( self::LEGACY_META_OPTION ); } /** * Returns front page meta description for current site. * * @return string Front page meta description string or empty string. */ public static function get_front_page_meta_description() { if ( self::is_enabled_jetpack_seo() ) { $front_page_meta = get_option( self::FRONT_PAGE_META_OPTION ); return $front_page_meta ? $front_page_meta : get_option( self::LEGACY_META_OPTION, '' ); } // Support legacy usage for WPcom simple sites. return get_option( self::LEGACY_META_OPTION, '' ); } /** * Sanitizes the custom front page meta description input. * * @param string $value Front page meta string. * * @return string The sanitized string. */ public static function sanitize_front_page_meta_description( $value ) { return wp_strip_all_tags( $value ); } /** * Updates the site option value for front page meta description. * * @param string $value New value for front page meta description. * * @return string Saved value, or empty string if no update was performed. */ public static function update_front_page_meta_description( $value ) { $front_page_description = self::sanitize_front_page_meta_description( $value ); /** * Can be used to limit the length of front page meta description. * * @module seo-tools * * @since 4.4.0 * * @param int Maximum length of front page meta description. Defaults to 300. */ $description_max_length = apply_filters( 'jetpack_seo_front_page_description_max_length', 300 ); if ( function_exists( 'mb_substr' ) ) { $front_page_description = mb_substr( $front_page_description, 0, $description_max_length ); } else { $front_page_description = substr( $front_page_description, 0, $description_max_length ); } $can_set_meta = self::is_enabled_jetpack_seo(); $legacy_meta_option = get_option( self::LEGACY_META_OPTION ); $has_old_meta = ! empty( $legacy_meta_option ); $option_name = self::has_legacy_front_page_meta() ? self::LEGACY_META_OPTION : self::FRONT_PAGE_META_OPTION; $did_update = update_option( $option_name, $front_page_description ); if ( $did_update && $has_old_meta && $can_set_meta ) { // Delete legacy option if user has switched to Business or eCommerce plan and updated the front page meta description. delete_option( self::LEGACY_META_OPTION ); } if ( $did_update ) { return $front_page_description; } return ''; } }
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