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<?php |
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/** |
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* This file defines the JSON-LD endpoint. |
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* |
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* @author David Riccitelli <[email protected]> |
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* @package Wordlift\Jsonld |
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*/ |
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namespace Wordlift\Jsonld; |
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use DateInterval; |
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use DateTime; |
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use DateTimeZone; |
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use Wordlift_Jsonld_Service; |
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use WP_REST_Response; |
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/** |
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* Class Jsonld_Endpoint |
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* |
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* @package Wordlift\Jsonld |
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*/ |
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class Jsonld_Endpoint { |
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/** |
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* The {@link Wordlift_Jsonld_Service} instance. |
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* |
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* @var Wordlift_Jsonld_Service The {@link Wordlift_Jsonld_Service} instance. |
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*/ |
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private $jsonld_service; |
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/** |
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* @var \Wordlift_Entity_Uri_Service |
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*/ |
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private $entity_uri_service; |
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/** |
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* Jsonld_Endpoint constructor. |
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* |
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* @param \Wordlift_Jsonld_Service $jsonld_service |
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* @param \Wordlift_Entity_Uri_Service $entity_uri_service |
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*/ |
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public function __construct( $jsonld_service, $entity_uri_service ) { |
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$this->jsonld_service = $jsonld_service; |
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$this->entity_uri_service = $entity_uri_service; |
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// PHP 5.3 compatibility. |
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$that = $this; |
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add_action( 'rest_api_init', function () use ( $that ) { |
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register_rest_route( WL_REST_ROUTE_DEFAULT_NAMESPACE, '/jsonld/(?P<id>\d+)', array( |
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'methods' => 'GET', |
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'callback' => array( $that, 'jsonld_using_post_id' ), |
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'args' => array( |
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'id' => array( |
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'validate_callback' => function ( $param, $request, $key ) { |
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return is_numeric( $param ); |
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}, |
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'sanitize_callback' => 'absint', |
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), |
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) |
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) ); |
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register_rest_route( WL_REST_ROUTE_DEFAULT_NAMESPACE, '/jsonld/http/(?P<item_id>.*)', array( |
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'methods' => 'GET', |
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'callback' => array( $that, 'jsonld_using_item_id' ), |
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) ); |
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register_rest_route( WL_REST_ROUTE_DEFAULT_NAMESPACE, '/jsonld/post-meta/(?P<meta_key>[^/]+)/(?P<meta_value>.*)', array( |
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'methods' => 'GET', |
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'callback' => array( $that, 'jsonld_using_post_meta' ), |
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) ); |
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register_rest_route( WL_REST_ROUTE_DEFAULT_NAMESPACE, '/jsonld/(?P<post_type>.*)/(?P<post_name>.*)', array( |
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'methods' => 'GET', |
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'callback' => array( $that, 'jsonld_using_get_page_by_path' ), |
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) ); |
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} ); |
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} |
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/** |
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* Callback for the JSON-LD request. |
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* |
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* @param array $request { |
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* The request array. |
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* |
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* @type int $id The post id. |
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* } |
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* |
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* @return WP_REST_Response |
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* @throws \Exception |
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*/ |
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public function jsonld_using_post_id( $request ) { |
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$post_id = $request['id']; |
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$is_homepage = ( 0 === $post_id ); |
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// Send the generated JSON-LD. |
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$data = $this->jsonld_service->get_jsonld( $is_homepage, $post_id ); |
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$response = new WP_REST_Response( $data ); |
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$cache_in_seconds = 86400; |
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$date_timezone = new DateTimeZone( 'GMT' ); |
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$date_now = new DateTime( 'now', $date_timezone ); |
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$date_interval = new DateInterval( "PT{$cache_in_seconds}S" ); |
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$expires = $date_now->add( $date_interval )->format( 'D, j M Y H:i:s T' ); |
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$response->set_headers( array( |
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'Content-Type' => 'application/ld+json; charset=' . get_option( 'blog_charset' ), |
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'Cache-Control' => "max-age=$cache_in_seconds", |
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'Expires' => $expires |
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) ); |
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return $response; |
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} |
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/** |
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* Provide a JSON-LD given the itemId. |
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* |
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* @param array $request { |
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* The request array. |
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* |
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* @type string $item_id The entity item id. |
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* } |
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* |
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* @return WP_REST_Response |
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* @throws \Exception |
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*/ |
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public function jsonld_using_item_id( $request ) { |
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$item_id = 'http://' . $request['item_id']; |
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$post = $this->entity_uri_service->get_entity( $item_id ); |
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if ( ! is_a( $post, 'WP_Post' ) ) { |
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return new WP_REST_Response( esc_html( "$item_id not found." ), 404, array( 'Content-Type' => 'text/html' ) ); |
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} |
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return $this->jsonld_using_post_id( array( 'id' => $post->ID, ) ); |
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} |
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public function jsonld_using_get_page_by_path( $request ) { |
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$post_name = $request['post_name']; |
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$post_type = $request['post_type']; |
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global $wpdb; |
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$sql = " |
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SELECT ID |
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FROM $wpdb->posts |
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WHERE post_name = %s |
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AND post_type = %s |
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"; |
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$post_id = $wpdb->get_var( $wpdb->prepare( $sql, $post_name, $post_type ) ); |
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if ( is_null( $post_id ) ) { |
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return new WP_REST_Response( esc_html( "$post_name of type $post_type not found." ), 404, array( 'Content-Type' => 'text/html' ) ); |
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} |
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return $this->jsonld_using_post_id( array( 'id' => $post_id, ) ); |
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} |
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public function jsonld_using_post_meta( $request ) { |
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$meta_key = $request['meta_key']; |
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$meta_value = rawurldecode( $request['meta_value'] ); |
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global $wpdb; |
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$sql = " |
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SELECT post_id AS ID |
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FROM $wpdb->postmeta |
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WHERE meta_key = %s |
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AND meta_value LIKE %s |
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LIMIT 1 |
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"; |
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$post_id = $wpdb->get_var( $wpdb->prepare( $sql, $meta_key, '%' . $wpdb->esc_like( $meta_value ) . '%' ) ); |
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if ( is_null( $post_id ) ) { |
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return new WP_REST_Response( esc_html( "Post with meta key $meta_key and value $meta_value not found." ), 404, array( 'Content-Type' => 'text/html' ) ); |
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} |
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return $this->jsonld_using_post_id( array( 'id' => $post_id, ) ); |
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} |
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} |
This check looks from parameters that have been defined for a function or method, but which are not used in the method body.