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<?php /** * Output the Schema.org markup in JSON-LD format. * * @since 0.9.0 * @package RankMath * @subpackage RankMath\Schema * @author Rank Math <support@rankmath.com> */ namespace RankMath\Schema; use RankMath\Helper; use RankMath\Helpers\Url; use RankMath\Helpers\Str; use RankMath\Helpers\Arr; use RankMath\Paper\Paper; use RankMath\Traits\Hooker; defined( 'ABSPATH' ) || exit; /** * JsonLD class. */ class JsonLD { use Hooker; /** * Hold post object. * * @var WP_Post */ public $post = null; /** * Hold post ID. * * @var ID */ public $post_id = 0; /** * Hold post parts. * * @var array */ public $parts = []; /** * The Constructor. */ public function setup() { $this->action( 'rank_math/head', 'json_ld', 90 ); $this->action( 'rank_math/json_ld', 'add_context_data' ); $this->action( 'rank_math/json_ld/preview', 'generate_preview' ); new Block_Parser(); new Frontend(); } /** * Get Schema Preview. Used in the Code Validation in Pro. */ public function generate_preview() { global $post; if ( is_singular() ) { $this->post = $post; $this->post_id = $post->ID; $this->get_parts(); } $data = $this->do_filter( 'json_ld', [], $this ); unset( $data['BreadcrumbList'] ); // Preview schema. $schema = \json_decode( file_get_contents( 'php://input' ), true ); $schema_id = $schema['schemaID']; if ( isset( $data[ $schema_id ] ) ) { $current_data = $data[ $schema_id ]; unset( $data[ $schema_id ] ); } else { $current_data = array_pop( $data ); } unset( $schema['schemaID'] ); $schema = $this->replace_variables( $schema ); $schema = $this->filter( $schema, $this, $data ); $schema = wp_parse_args( $schema['schema'], $current_data ); if ( ! empty( $schema['@type'] ) && in_array( $schema['@type'], [ 'WooCommerceProduct', 'EDDProduct' ], true ) ) { $schema['@type'] = ! empty( $schema['hasVariant'] ) ? 'ProductGroup' : 'Product'; } // Merge. $data = array_merge( $data, [ $schema_id => $schema ] ); /** * Filter to change the Code validation data.. * * @param array $unsigned An array of data to output in JSON-LD. */ $data = $this->do_filter( 'schema/preview/validate', $this->do_filter( 'schema/validated_data', $this->validate_schema( $data ) ) ); echo wp_json_encode( array_values( $data ) ); } /** * Function to get Old schema data. This code is used in the Schema_Converter to convert old schema data. * * @param int $post_id Post id for conversion. * @param mixed $class Class instance of snippet. * @return array */ public function get_old_schema( $post_id, $class ) { global $post; $post = get_post( $post_id ); // phpcs:ignore $this->post = $post; $this->post_id = $post_id; setup_postdata( $post ); $this->get_parts(); /** * Collect data to output in JSON-LD. * * @param array $unsigned An array of data to output in json-ld. * @param JsonLD $unsigned JsonLD instance. */ return $class->process( [], $this ); } /** * Output the ld+json tag with the generated schema data. */ public function json_ld() { global $post; if ( is_singular() ) { $this->post = $post; $this->post_id = $post->ID; $this->get_parts(); } /** * Filter to collect data to output in JSON-LD. * * @param array $unsigned An array of data to output in JSON-LD. * @param JsonLD $unsigned JsonLD instance. */ $data = $this->do_filter( 'json_ld', [], $this ); $data = $this->do_filter( 'schema/validated_data', $this->validate_schema( $data ) ); if ( is_array( $data ) && ! empty( $data ) ) { $class = defined( 'RANK_MATH_PRO_FILE' ) ? 'schema-pro' : 'schema'; $json = [ '@context' => 'https://schema.org', '@graph' => array_values( $data ), ]; $options = defined( 'RANKMATH_DEBUG' ) && RANKMATH_DEBUG ? JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES : JSON_UNESCAPED_SLASHES; echo '<script type="application/ld+json" class="rank-math-' . esc_attr( $class ) . '">' . wp_json_encode( wp_kses_post_deep( $json ), $options ) . '</script>' . "\n"; } } /** * Validate schema data. Removes invalid and empty values from the schema data. * * @param array $data Array of JSON-LD data. * * @return array */ private function validate_schema( $data ) { if ( ! is_array( $data ) || empty( $data ) ) { return $data; } foreach ( $data as $id => $value ) { if ( is_array( $value ) ) { // Remove aline @type. if ( isset( $value['@type'] ) && 1 === count( $value ) ) { unset( $data[ $id ] ); continue; } // Remove empty review. if ( 'review' === $id && isset( $value['@type'] ) ) { if ( ! isset( $value['reviewRating'] ) || ! isset( $value['reviewRating']['ratingValue'] ) ) { unset( $data[ $id ] ); continue; } } // Recursive. $data[ $id ] = $this->validate_schema( $value ); } // Remove empty values. // Remove need of array_filter as this will go recursive. if ( '' === $value ) { unset( $data[ $id ] ); continue; } } return $data; } /** * Get Default Schema Data. * * @param array $data Array of JSON-LD data. * * @return array */ public function add_schema( $data ) { global $post; $schema = DB::get_schemas( $post->ID ); return array_merge( $data, $schema ); } /** * Get Default Schema Data. * * @param array $data Array of json-ld data. * * @return array */ public function add_context_data( $data ) { $is_product_archive = $this->is_product_archive_page(); $can_add_global = $this->can_add_global_entities( $data, $is_product_archive ); $snippets = [ '\\RankMath\\Schema\\Publisher' => ! isset( $data['publisher'] ) && $can_add_global, '\\RankMath\\Schema\\Website' => $can_add_global, '\\RankMath\\Schema\\PrimaryImage' => is_singular() && ! post_password_required() && $can_add_global, '\\RankMath\\Schema\\Breadcrumbs' => $this->can_add_breadcrumb(), '\\RankMath\\Schema\\Webpage' => $can_add_global, '\\RankMath\\Schema\\Author' => is_author() || ( is_singular() && $can_add_global ), '\\RankMath\\Schema\\Products_Page' => $is_product_archive, '\\RankMath\\Schema\\Singular' => ! post_password_required() && is_singular(), ]; foreach ( $snippets as $class => $can_run ) { if ( $can_run ) { $class = new $class(); $data = $class->process( $data, $this ); } } return $data; } /** * Function to replace variables used in Schema fields. * * @param array $schemas Schema to replace. * @param object $object Current Object. * @param array $data Array of json-ld data. * * @return array */ public function replace_variables( $schemas, $object = [], $data = [] ) { $new_schemas = []; $object = empty( $object ) ? get_queried_object() : $object; foreach ( $schemas as $key => $schema ) { if ( 'metadata' === $key ) { $new_schemas['isPrimary'] = ! empty( $schema['isPrimary'] ); if ( ! empty( $schema['type'] ) && 'custom' === $schema['type'] ) { $new_schemas['isCustom'] = true; } continue; } $this->replace_author( $schema, $data ); if ( is_array( $schema ) ) { $new_schemas[ $key ] = $this->replace_variables( $schema, $object, $data ); continue; } // Need this conditions to convert date to valid ISO 8601 format. if ( in_array( $key, [ 'datePublished', 'uploadDate' ], true ) && '%date(Y-m-dTH:i:sP)%' === $schema ) { $schema = '%date(Y-m-d\TH:i:sP)%'; } if ( 'dateModified' === $key && '%modified(Y-m-dTH:i:sP)%' === $schema ) { $schema = '%modified(Y-m-d\TH:i:sP)%'; } $new_schemas[ $key ] = is_string( $schema ) && Str::contains( '%', $schema ) && ! filter_var( $schema, FILTER_VALIDATE_URL ) ? Helper::replace_vars( $schema, $object ) : $schema; if ( '' === $new_schemas[ $key ] ) { unset( $new_schemas[ $key ] ); } } return $new_schemas; } /** * Function to replace %author% with Author entity @id. * * @param array $schema Schema to replace. * @param array $data Array of json-ld data. * * @return array */ private function replace_author( &$schema, $data ) { if ( empty( $data['ProfilePage'] ) ) { return; } if ( empty( $schema['author'] ) || ! isset( $schema['author']['name'] ) || ! in_array( $schema['author']['name'], [ '%name%', '%post_author%' ], true ) ) { return; } $schema['author'] = [ '@id' => $data['ProfilePage']['@id'], 'name' => get_the_author(), ]; } /** * Filter schema data before adding it to ld+json. * * @param array $schemas Schema to replace. * @param JsonLD $jsonld Instance of jsonld. * @param array $data Array of json-ld data. * * @return array */ public function filter( $schemas, $jsonld, $data ) { $new_schemas = []; foreach ( $schemas as $key => $schema ) { $type = is_array( $schema['@type'] ) ? $schema['@type'][0] : $schema['@type']; $type = strtolower( $type ); $type = in_array( $type, [ 'musicgroup', 'musicalbum' ], true ) ? 'music' : ( in_array( $type, [ 'blogposting', 'newsarticle' ], true ) ? 'article' : $type ); $type = Str::contains( 'event', $type ) ? 'event' : $type; $hook = 'snippet/rich_snippet_' . $type; /** * Short-circuit if 3rd party is interested generating his own data. */ $pre = $this->do_filter( $hook, false, $jsonld->parts, $data ); if ( false !== $pre ) { $new_schemas[ $key ] = $this->do_filter( $hook . '_entity', $pre ); $new_schemas[ $key ] = $this->do_filter( 'snippet/rich_snippet_entity', $new_schemas[ $key ] ); continue; } $new_schemas[ $key ] = $this->do_filter( $hook . '_entity', $schema ); $new_schemas[ $key ] = $this->do_filter( 'snippet/rich_snippet_entity', $new_schemas[ $key ] ); } return $new_schemas; } /** * Whether to add global schema entities. * * @param array $data Array of json-ld data. * @param bool $is_product_archive Whether the current page is a Product archive. * @return bool */ public function can_add_global_entities( $data = [], $is_product_archive = false ) { if ( ! $is_product_archive && ( is_category() || is_tag() || is_tax() ) ) { $queried_object = get_queried_object(); return ! Helper::get_settings( 'titles.remove_' . $queried_object->taxonomy . '_snippet_data' ) && ! $this->do_filter( 'snippet/remove_taxonomy_data', false, $queried_object->taxonomy ); } if ( is_front_page() || ! is_singular() || ! Helper::can_use_default_schema( $this->post_id ) || ! empty( $data ) ) { return true; } $schemas = DB::get_schemas( $this->post_id ); if ( ! empty( $schemas ) ) { return true; } /** * Allow developer to remove global schema entities. * * @param bool $can_add * @param JsonLD $unsigned JsonLD instance. */ return $this->do_filter( 'schema/add_global_entities', Helper::get_default_schema_type( $this->post_id, true ), $this ); } /** * Can add breadcrumb schema. * * @return bool */ private function can_add_breadcrumb() { /** * Allow developer to disable the breadcrumb JSON-LD output. * * @param bool $unsigned Default: true */ return ! is_front_page() && Helper::is_breadcrumbs_enabled() && $this->do_filter( 'json_ld/breadcrumbs_enabled', true ); } /** * Check if current page is a WooCommerce archive page. * * @return bool */ private function is_product_archive_page() { return Helper::is_woocommerce_active() && ( ( is_tax() && in_array( get_query_var( 'taxonomy' ), get_object_taxonomies( 'product' ), true ) ) || is_shop() ); } /** * Add property to entity. * * @param string $prop Name of the property to add into entity. * @param array $entity Array of json-ld entity. * @param string $key Property key to add into entity. * @param array $data Array of json-ld data. */ public function add_prop( $prop, &$entity, $key = '', $data = [] ) { if ( empty( $prop ) ) { return; } $hash = [ 'email' => [ 'titles.email', 'email' ], 'phone' => [ 'titles.phone', 'telephone' ], ]; if ( isset( $hash[ $prop ] ) && $value = Helper::get_settings( $hash[ $prop ][0] ) ) { // phpcs:ignore $entity[ $hash[ $prop ][1] ] = $value; return; } $perform = "add_prop_{$prop}"; if ( method_exists( $this, $perform ) ) { $this->$perform( $entity, $key, $data ); } } /** * Add logo property to the entity. * * @param array $entity Array of JSON-LD entity. */ private function add_prop_image( &$entity ) { $logo = Helper::get_settings( 'titles.knowledgegraph_logo' ); if ( ! $logo ) { $logo_id = \get_option( 'site_logo' ); $logo = $logo_id ? wp_get_attachment_image_url( $logo_id ) : ''; } if ( ! $logo ) { return; } $entity['logo'] = [ '@type' => 'ImageObject', '@id' => home_url( '/#logo' ), 'url' => $logo, 'contentUrl' => $logo, 'caption' => $this->get_website_name(), ]; $this->add_prop_language( $entity['logo'] ); $attachment = wp_get_attachment_metadata( Helper::get_settings( 'titles.knowledgegraph_logo_id' ), true ); if ( ! $attachment ) { return; } $entity['logo']['width'] = $attachment['width']; $entity['logo']['height'] = $attachment['height']; } /** * Add Language property to the entity. * * @param array $entity Array of JSON-LD entity. */ private function add_prop_language( &$entity ) { $entity['inLanguage'] = $this->do_filter( 'schema/language', get_bloginfo( 'language' ) ); } /** * Add Image property to entity. * * @param array $entity Array of json-ld entity. * @param string $key Entity Key. * @param array $data Schema Data. */ private function add_prop_thumbnail( &$entity, $key, $data ) { if ( ! empty( $data['primaryImage'] ) ) { $entity[ $key ] = [ '@id' => $data['primaryImage']['@id'] ]; } } /** * Add isPartOf property to entity. * * @param array $entity Array of json-ld entity. * @param string $key Entity Key. */ private function add_prop_is_part_of( &$entity, $key ) { $hash = [ 'website' => home_url( '/#website' ), 'webpage' => Paper::get()->get_canonical() . '#webpage', ]; if ( ! empty( $hash[ $key ] ) ) { $entity['isPartOf'] = [ '@id' => $hash[ $key ] ]; } } /** * Add publisher property to entity * * @param array $entity Entity. * @param string $key Entity Key. * @param array $data Schema Data. */ public function add_prop_publisher( &$entity, $key, $data ) { if ( empty( $data['publisher'] ) ) { return; } $entity[ $key ] = [ '@id' => $data['publisher']['@id'] ]; } /** * Add url property to entity. * * @param array $entity Array of JSON-LD entity. */ private function add_prop_url( &$entity ) { if ( $url = Helper::get_settings( 'titles.url' ) ) { // phpcs:ignore $entity['url'] = ! Url::is_relative( $url ) ? $url : 'http://' . $url; } } /** * Add address property to entity. * * @param array $entity Array of JSON-LD entity. */ private function add_prop_address( &$entity ) { if ( $address = Helper::get_settings( 'titles.local_address' ) ) { // phpcs:ignore $entity['address'] = [ '@type' => 'PostalAddress' ] + $address; } } /** * Add aggregateratings to entity. * * @param string $schema Schema to get data for. * @param array $entity Array of JSON-LD entity to attach data to. */ public function add_ratings( $schema, &$entity ) { $rating = Helper::get_post_meta( "snippet_{$schema}_rating" ); // Early Bail! if ( ! $rating ) { return; } $entity['review'] = [ 'author' => [ '@type' => 'Person', 'name' => get_the_author_meta( 'display_name' ), ], 'datePublished' => get_post_time( 'Y-m-d\TH:i:sP', false ), 'dateModified' => get_post_modified_time( 'Y-m-d\TH:i:sP', false ), 'reviewRating' => [ '@type' => 'Rating', 'ratingValue' => $rating, 'bestRating' => Helper::get_post_meta( "snippet_{$schema}_rating_max" ) ? Helper::get_post_meta( "snippet_{$schema}_rating_max" ) : 5, 'worstRating' => Helper::get_post_meta( "snippet_{$schema}_rating_min" ) ? Helper::get_post_meta( "snippet_{$schema}_rating_min" ) : 1, ], ]; } /** * Get website name with a fallback to bloginfo( 'name' ). * * @return string */ public function get_website_name() { return Helper::get_settings( 'titles.website_name', $this->get_organization_name() ); } /** * Get website name with a fallback to bloginfo( 'name' ). * * @return string */ public function get_organization_name() { $name = Helper::get_settings( 'titles.knowledgegraph_name' ); return $name ? $name : get_bloginfo( 'name' ); } /** * Set publisher/provider data for JSON-LD. * * @param array $entity Array of JSON-LD entity. * @param array $organization Organization data. * @param string $type Type data set to. Default: 'publisher'. */ public function set_publisher( &$entity, $organization, $type = 'publisher' ) { $keys = [ '@context', '@type', 'url', 'name', 'logo', 'image', 'contactPoint', 'sameAs' ]; foreach ( $keys as $key ) { if ( ! isset( $organization[ $key ] ) ) { continue; } $entity[ $type ][ $key ] = 'logo' !== $key ? $organization[ $key ] : [ '@type' => 'ImageObject', 'url' => $organization[ $key ], ]; } } /** * Set address for JSON-LD. * * @param string $schema Schema to get data for. * @param array $entity Array of JSON-LD entity to attach data to. */ public function set_address( $schema, &$entity ) { $address = Helper::get_post_meta( "snippet_{$schema}_address" ); // Early Bail! if ( ! is_array( $address ) || empty( $address ) ) { return; } $entity['address'] = [ '@type' => 'PostalAddress' ]; foreach ( $address as $key => $value ) { $entity['address'][ $key ] = $value; } } /** * Set data to entity. * * Loop through post meta value grab data and attache it to the entity. * * @param array $hash Key to get data and Value to save as. * @param array $entity Array of JSON-LD entity to attach data to. */ public function set_data( $hash, &$entity ) { foreach ( $hash as $metakey => $dest ) { $entity[ $dest ] = Helper::get_post_meta( $metakey, $this->post_id ); } } /** * Get post title. * * Retrieves the title in this order. * 1. Custom post meta set in rich snippet * 2. Headline template set in Titles & Meta * * @param int $post_id Post ID to get title for. * * @return string */ public function get_post_title( $post_id = 0 ) { $title = Helper::get_post_meta( 'snippet_name', $post_id ); if ( ! $title && ! empty( $this->post ) ) { $title = Helper::replace_vars( Helper::get_settings( "titles.pt_{$this->post->post_type}_default_snippet_name", '%seo_title%' ), $this->post ); } $title = $title ? $title : Paper::get()->get_title(); return Str::truncate( $title ); } /** * Get post url. * * @param int $post_id Post ID to get URL for. * @return string */ public function get_post_url( $post_id = 0 ) { $url = Helper::get_post_meta( 'snippet_url', $post_id ); return $url ? $url : ( 0 === $post_id ? Paper::get()->get_canonical() : get_the_permalink( $post_id ) ); } /** * Get product description. * * @param object $product Product Object. * @return string */ public function get_product_desc( $product = [] ) { if ( empty( $product ) ) { return; } if ( $description = Helper::get_post_meta( 'description', $product->get_id() ) ) { //phpcs:ignore return $description; } $product_object = get_post( $product->get_id() ); $description = Paper::get_from_options( 'pt_product_description', $product_object, '%excerpt%' ); if ( ! $description ) { $description = $product->get_short_description() ? $product->get_short_description() : $product->get_description(); } $description = $this->do_filter( 'product_description/apply_shortcode', false ) ? do_shortcode( $description ) : Helper::strip_shortcodes( $description ); return wp_strip_all_tags( $description, true ); } /** * Get product title. * * @param object $product Product Object. * @return string */ public function get_product_title( $product = [] ) { if ( empty( $product ) ) { return ''; } if ( $title = Helper::get_post_meta( 'title', $product->get_id() ) ) { //phpcs:ignore return $title; } $product_object = get_post( $product->get_id() ); $title = Paper::get_from_options( 'pt_product_title', $product_object, '%title% %sep% %sitename%' ); return $title ? $title : $product->get_name(); } /** * Get post parts. */ private function get_parts() { $parts = [ 'title' => $this->get_post_title(), 'url' => $this->get_post_url(), 'canonical' => Paper::get()->get_canonical(), 'modified' => mysql2date( DATE_W3C, $this->post->post_modified, false ), 'published' => mysql2date( DATE_W3C, $this->post->post_date, false ), 'excerpt' => Helper::replace_vars( '%excerpt%', $this->post ), ]; // Description. $desc = Helper::get_post_meta( 'snippet_desc' ); if ( ! $desc ) { $desc = Helper::replace_vars( Helper::get_settings( "titles.pt_{$this->post->post_type}_default_snippet_desc" ), $this->post ); } $parts['desc'] = $desc ? $desc : ( Helper::get_post_meta( 'description' ) ? Helper::get_post_meta( 'description' ) : $parts['excerpt'] ); // Author. $author = Helper::get_post_meta( 'snippet_author' ); $parts['author'] = $author ? $author : get_the_author_meta( 'display_name', $this->post->post_author ); // Modified date cannot be before publish date. if ( strtotime( $this->post->post_modified ) < strtotime( $this->post->post_date ) ) { $parts['modified'] = $parts['published']; } $this->parts = $parts; } /** * Get global social profile URLs, to use in the `sameAs` property. * * @link https://developers.google.com/webmasters/structured-data/customize/social-profiles */ public function get_social_profiles() { $profiles = [ Helper::get_settings( 'titles.social_url_facebook' ) ]; $twitter = Helper::get_settings( 'titles.twitter_author_names' ); if ( $twitter ) { $profiles[] = "https://twitter.com/$twitter"; } $addional_profiles = Helper::get_settings( 'titles.social_additional_profiles' ); if ( ! empty( $addional_profiles ) ) { $profiles = array_merge( $profiles, Arr::from_string( $addional_profiles, "\n" ) ); } return array_values( array_filter( $profiles ) ); } }