__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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<?php // phpcs:ignore Yoast.Files.FileName.InvalidClassFileName -- Reason: this explicitly concerns the Yoast head fields.
namespace Yoast\WP\SEO\Routes;
use Yoast\WP\SEO\Actions\Indexables\Indexable_Head_Action;
use Yoast\WP\SEO\Conditionals\Headless_Rest_Endpoints_Enabled_Conditional;
use Yoast\WP\SEO\Helpers\Post_Helper;
use Yoast\WP\SEO\Helpers\Post_Type_Helper;
use Yoast\WP\SEO\Helpers\Taxonomy_Helper;
/**
* Yoast_Head_REST_Field class.
*
* Registers the yoast head REST field.
* Not technically a route but behaves the same so is included here.
*/
class Yoast_Head_REST_Field implements Route_Interface {
/**
* The name of the Yoast head field.
*
* @var string
*/
const YOAST_HEAD_ATTRIBUTE_NAME = 'yoast_head';
/**
* The name of the Yoast head JSON field.
*
* @var string
*/
const YOAST_JSON_HEAD_ATTRIBUTE_NAME = 'yoast_head_json';
/**
* The post type helper.
*
* @var Post_Type_Helper
*/
protected $post_type_helper;
/**
* The taxonomy helper.
*
* @var Taxonomy_Helper
*/
protected $taxonomy_helper;
/**
* The post helper.
*
* @var Post_Helper
*/
protected $post_helper;
/**
* The head action.
*
* @var Indexable_Head_Action
*/
protected $head_action;
/**
* Returns the conditionals based in which this loadable should be active.
*
* @return array
*/
public static function get_conditionals() {
return [ Headless_Rest_Endpoints_Enabled_Conditional::class ];
}
/**
* Yoast_Head_REST_Field constructor.
*
* @param Post_Type_Helper $post_type_helper The post type helper.
* @param Taxonomy_Helper $taxonomy_helper The taxonomy helper.
* @param Post_Helper $post_helper The post helper.
* @param Indexable_Head_Action $head_action The head action.
*/
public function __construct(
Post_Type_Helper $post_type_helper,
Taxonomy_Helper $taxonomy_helper,
Post_Helper $post_helper,
Indexable_Head_Action $head_action
) {
$this->post_type_helper = $post_type_helper;
$this->taxonomy_helper = $taxonomy_helper;
$this->post_helper = $post_helper;
$this->head_action = $head_action;
}
/**
* Registers routes with WordPress.
*
* @return void
*/
public function register_routes() {
$public_post_types = $this->post_type_helper->get_indexable_post_types();
foreach ( $public_post_types as $post_type ) {
$this->register_rest_fields( $post_type, 'for_post' );
}
$public_taxonomies = $this->taxonomy_helper->get_indexable_taxonomies();
foreach ( $public_taxonomies as $taxonomy ) {
if ( $taxonomy === 'post_tag' ) {
$taxonomy = 'tag';
}
$this->register_rest_fields( $taxonomy, 'for_term' );
}
$this->register_rest_fields( 'user', 'for_author' );
$this->register_rest_fields( 'type', 'for_post_type_archive' );
}
/**
* Returns the head for a post.
*
* @param array $params The rest request params.
* @param string $format The desired output format.
*
* @return string|null The head.
*/
public function for_post( $params, $format = self::YOAST_HEAD_ATTRIBUTE_NAME ) {
if ( ! isset( $params['id'] ) ) {
return null;
}
if ( ! $this->post_helper->is_post_indexable( $params['id'] ) ) {
return null;
}
$obj = $this->head_action->for_post( $params['id'] );
return $this->render_object( $obj, $format );
}
/**
* Returns the head for a term.
*
* @param array $params The rest request params.
* @param string $format The desired output format.
*
* @return string|null The head.
*/
public function for_term( $params, $format = self::YOAST_HEAD_ATTRIBUTE_NAME ) {
$obj = $this->head_action->for_term( $params['id'] );
return $this->render_object( $obj, $format );
}
/**
* Returns the head for an author.
*
* @param array $params The rest request params.
* @param string $format The desired output format.
*
* @return string|null The head.
*/
public function for_author( $params, $format = self::YOAST_HEAD_ATTRIBUTE_NAME ) {
$obj = $this->head_action->for_author( $params['id'] );
return $this->render_object( $obj, $format );
}
/**
* Returns the head for a post type archive.
*
* @param array $params The rest request params.
* @param string $format The desired output format.
*
* @return string|null The head.
*/
public function for_post_type_archive( $params, $format = self::YOAST_HEAD_ATTRIBUTE_NAME ) {
if ( $params['slug'] === 'post' ) {
$obj = $this->head_action->for_posts_page();
}
elseif ( ! $this->post_type_helper->has_archive( $params['slug'] ) ) {
return null;
}
else {
$obj = $this->head_action->for_post_type_archive( $params['slug'] );
}
return $this->render_object( $obj, $format );
}
/**
* Registers the Yoast rest fields.
*
* @param string $object_type The object type.
* @param string $callback The function name of the callback.
*
* @return void
*/
protected function register_rest_fields( $object_type, $callback ) {
// Output metadata in page head meta tags.
\register_rest_field( $object_type, self::YOAST_HEAD_ATTRIBUTE_NAME, [ 'get_callback' => [ $this, $callback ] ] );
// Output metadata in a json object in a head meta tag.
\register_rest_field( $object_type, self::YOAST_JSON_HEAD_ATTRIBUTE_NAME, [ 'get_callback' => [ $this, $callback ] ] );
}
/**
* Returns the correct property for the Yoast head.
*
* @param stdObject $head The Yoast head.
* @param string $format The format to return.
*
* @return string|array|null The output value. String if HTML was requested, array otherwise.
*/
protected function render_object( $head, $format = self::YOAST_HEAD_ATTRIBUTE_NAME ) {
if ( $head->status === 404 ) {
return null;
}
switch ( $format ) {
case self::YOAST_HEAD_ATTRIBUTE_NAME:
return $head->html;
case self::YOAST_JSON_HEAD_ATTRIBUTE_NAME:
return $head->json;
}
return null;
}
}