18790791685

Committed 24 Oct 2025 08:03PM UTC coverage: 83.207% (-1.4%) from 84.575%

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release: merge develop into master for v2.5.0

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/src/WPGraphQL.php

<?php
/**
 * The global WPGraphQL class.
 *
 * @package WPGraphQL
 */

use WPGraphQL\Admin\Admin;
use WPGraphQL\AppContext;
use WPGraphQL\Registry\SchemaRegistry;
use WPGraphQL\Registry\TypeRegistry;
use WPGraphQL\Router;
use WPGraphQL\Utils\InstrumentSchema;
use WPGraphQL\Utils\Preview;

/**
 * Class WPGraphQL
 *
 * This is the one true WPGraphQL class
 */
final class WPGraphQL {

        /**
         * Stores the instance of the WPGraphQL class
         *
         * @var \WPGraphQL The one true WPGraphQL
         * @since  0.0.1
         */
        private static self $instance;

        /**
         * Holds the Schema def
         *
         * @var ?\WPGraphQL\WPSchema $schema The Schema used for the GraphQL API
         */
        protected static $schema;

        /**
         * Holds the TypeRegistry instance
         *
         * @var ?\WPGraphQL\Registry\TypeRegistry $type_registry The registry that holds all GraphQL Types
         */
        protected static $type_registry;

        /**
         * Stores an array of allowed post types
         *
         * @var ?\WP_Post_Type[] allowed_post_types
         * @since  0.0.5
         */
        protected static ?array $allowed_post_types;

        /**
         * Stores an array of allowed taxonomies
         *
         * @var ?\WP_Taxonomy[] allowed_taxonomies
         * @since  0.0.5
         */
        protected static ?array $allowed_taxonomies;

        /**
         * Whether a GraphQL request is currently being processed.
         */
        protected static bool $is_graphql_request = false;

        /**
         * Whether an Introspection query is currently being processed.
         */
        protected static bool $is_introspection_query = false;

        /**
         * The instance of the WPGraphQL object
         *
         * @return \WPGraphQL - The one true WPGraphQL
         * @since  0.0.1
         */
        public static function instance(): self {
                if ( ! isset( self::$instance ) ) {
                        self::$instance = new self();
                        self::$instance->setup_constants();
                        self::$instance->includes();
                        self::$instance->actions();
                        self::$instance->filters();
                        self::$instance->upgrade();
                        self::$instance->deprecated();
                }

                /**
                 * Return the WPGraphQL Instance
                 */
                return self::$instance;
        }

        /**
         * Throw error on object clone.
         * The whole idea of the singleton design pattern is that there is a single object
         * therefore, we don't want the object to be cloned.
         *
         * @return void
         * @since  0.0.1
         */
        public function __clone() {
                // Cloning instances of the class is forbidden.
                _doing_it_wrong( __FUNCTION__, esc_html__( 'The WPGraphQL class should not be cloned.', 'wp-graphql' ), '0.0.1' );
        }

        /**
         * Disable unserializing of the class.
         *
         * @return void
         * @since  0.0.1
         */
        public function __wakeup() {
                // De-serializing instances of the class is forbidden.
                _doing_it_wrong( __FUNCTION__, esc_html__( 'De-serializing instances of the WPGraphQL class is not allowed', 'wp-graphql' ), '0.0.1' );
        }

        /**
         * Setup plugin constants.
         *
         * @since  0.0.1
         */
        private function setup_constants(): void {
                graphql_setup_constants();
        }

        /**
         * Setup Experiments.
         */
        public function setup_experiments(): void {
                $experimental = new \WPGraphQL\Experimental\Experimental();
                $experimental->init();
        }

        /**
         * Include required files.
         * Uses composer's autoload
         *
         * @since  0.0.1
         */
        private function includes(): void {
        }

        /**
         * Set whether the request is a GraphQL request or not
         *
         * @param bool $is_graphql_request
         */
        public static function set_is_graphql_request( $is_graphql_request = false ): void {
                self::$is_graphql_request = $is_graphql_request;
        }

        /**
         * Whether the request is a graphql request or not
         */
        public static function is_graphql_request(): bool {
                return self::$is_graphql_request;
        }

        /**
         * Set whether the request is an introspection query or not
         *
         * @param bool $is_introspection_query
         *
         * @since 1.28.0
         */
        public static function set_is_introspection_query( bool $is_introspection_query = false ): void {
                self::$is_introspection_query = $is_introspection_query;
        }

        /**
         * Whether the request is an introspection query or not (query for __type or __schema)
         *
         * @since 1.28.0
         */
        public static function is_introspection_query(): bool {
                return (bool) self::$is_introspection_query;
        }

        /**
         * Sets up actions to run at certain spots throughout WordPress and the WPGraphQL execution
         * cycle
         */
        private function actions(): void {
                /**
                 * Init WPGraphQL after themes have been set up,
                 * allowing for both plugins and themes to register
                 * things before graphql_init
                 */
                add_action(
                        'after_setup_theme',
                        static function () {
                                new \WPGraphQL\Data\Config();
                                $router = new Router();
                                $router->init();
                                $instance = self::instance();

                                /**
                                 * Fire off init action
                                 *
                                 * @param \WPGraphQL $instance The instance of the WPGraphQL class
                                 */
                                do_action( 'graphql_init', $instance );
                        }
                );

                // Initialize the plugin url constant
                // see: https://developer.wordpress.org/reference/functions/plugins_url/#more-information
                add_action( 'init', [ $this, 'setup_plugin_url' ] );

                // Prevent WPGraphQL Insights from running
                remove_action( 'init', '\WPGraphQL\Extensions\graphql_insights_init' );

                /**
                 * Flush permalinks if the registered GraphQL endpoint has not yet been registered.
                 */
                add_action( 'wp_loaded', [ $this, 'maybe_flush_permalinks' ] );

                /**
                 * Hook in before fields resolve to check field permissions
                 */
                add_action(
                        'graphql_before_resolve_field',
                        [
                                '\WPGraphQL\Utils\InstrumentSchema',
                                'check_field_permissions',
                        ],
                        10,
                        8
                );

                // Determine what to show in graphql
                add_action( 'init_graphql_request', 'register_initial_settings', 10 );

                // Throw an exception
                add_action( 'do_graphql_request', [ $this, 'min_php_version_check' ] );
                add_action( 'do_graphql_request', [ $this, 'introspection_check' ], 10, 4 );

                // Initialize Admin functionality
                add_action( 'after_setup_theme', [ $this, 'init_admin' ] );
                add_action( 'after_setup_theme', [ $this, 'setup_experiments' ] );

                add_action(
                        'init_graphql_request',
                        static function () {
                                $tracing = new \WPGraphQL\Utils\Tracing();
                                $tracing->init();

                                $query_log = new \WPGraphQL\Utils\QueryLog();
                                $query_log->init();
                        }
                );

                // Initialize Update functionality.
                ( new \WPGraphQL\Admin\Updates\Updates() )->init();
        }

        /**
         * @param ?string                         $query     The GraphQL query
         * @param ?string                         $operation The name of the operation
         * @param ?array<mixed>                   $variables Variables to be passed to your GraphQL
         *                                                   request
         * @param \GraphQL\Server\OperationParams $params    The Operation Params. This includes any
         *                                                   extra params,
         *
         * @throws \GraphQL\Error\SyntaxError
         * @throws \Exception
         */
        public function introspection_check( ?string $query, ?string $operation, ?array $variables, \GraphQL\Server\OperationParams $params ): void {

                if ( empty( $query ) ) {
                        return;
                }

                $ast              = \GraphQL\Language\Parser::parse( $query );
                $is_introspection = false;

                \GraphQL\Language\Visitor::visit(
                        $ast,
                        [
                                'Field' => static function ( \GraphQL\Language\AST\Node $node ) use ( &$is_introspection ) {
                                        if ( $node instanceof \GraphQL\Language\AST\FieldNode && ( '__schema' === $node->name->value || '__type' === $node->name->value ) ) {
                                                $is_introspection = true;
                                                return \GraphQL\Language\Visitor::stop();
                                        }
                                },
                        ]
                );

                self::set_is_introspection_query( $is_introspection );
        }

        /**
         * Check if the minimum PHP version requirement is met before execution begins.
         *
         * If the server is running a lower version than required, throw an exception and prevent
         * further execution.
         *
         * @throws \Exception
         */
        public function min_php_version_check(): void {
                if ( defined( 'GRAPHQL_MIN_PHP_VERSION' ) && version_compare( PHP_VERSION, GRAPHQL_MIN_PHP_VERSION, '<' ) ) {
                        throw new \Exception(
                                esc_html(
                                        sprintf(
                                        // translators: %1$s is the current PHP version, %2$s is the minimum required PHP version.
                                                __( 'The server\'s current PHP version %1$s is lower than the WPGraphQL minimum required version: %2$s', 'wp-graphql' ),
                                                PHP_VERSION,
                                                GRAPHQL_MIN_PHP_VERSION
                                        )
                                )
                        );
                }
        }

        /**
         * Sets up the plugin url
         */
        public function setup_plugin_url(): void {
                // Plugin Folder URL.
                if ( ! defined( 'WPGRAPHQL_PLUGIN_URL' ) ) {
                        define( 'WPGRAPHQL_PLUGIN_URL', plugin_dir_url( dirname( __DIR__ ) . '/wp-graphql.php' ) );
                }
        }

        /**
         * Determine the post_types and taxonomies, etc that should show in GraphQL.
         */
        public function setup_types(): void {
                /**
                 * Set up the settings, post_types and taxonomies to show_in_graphql
                 */
                self::show_in_graphql();
        }

        /**
         * Flush permalinks if the GraphQL Endpoint route isn't yet registered.
         */
        public function maybe_flush_permalinks(): void {
                $rules = get_option( 'rewrite_rules' );
                if ( ! isset( $rules[ graphql_get_endpoint() . '/?$' ] ) ) {
                        flush_rewrite_rules(); // phpcs:ignore WordPressVIPMinimum.Functions.RestrictedFunctions.flush_rewrite_rules_flush_rewrite_rules
                }
        }

        /**
         * Setup filters
         */
        private function filters(): void {
                // Filter the post_types and taxonomies to show in the GraphQL Schema
                $this->setup_types();

                /**
                 * Instrument the Schema to provide Resolve Hooks and sanitize Schema output
                 */
                add_filter(
                        'graphql_get_type',
                        [
                                InstrumentSchema::class,
                                'instrument_resolvers',
                        ],
                        10,
                        2
                );

                // Filter how metadata is retrieved during GraphQL requests
                add_filter(
                        'get_post_metadata',
                        [
                                Preview::class,
                                'filter_post_meta_for_previews',
                        ],
                        10,
                        4
                );

                /**
                 * Prevent WPML from redirecting within WPGraphQL requests
                 *
                 * @see https://github.com/wp-graphql/wp-graphql/issues/1626#issue-769089073
                 * @since 1.27.0
                 */
                add_filter(
                        'wpml_is_redirected',
                        static function ( bool $is_redirect ) {
                                if ( is_graphql_request() ) {
                                        return false;
                                }
                                return $is_redirect;
                        },
                        10,
                        1
                );
        }

        /**
         * Private function to register deprecated functionality.
         */
        private function deprecated(): void {
                $deprecated = new WPGraphQL\Deprecated();
                $deprecated->register();
        }

        /**
         * Upgrade routine.
         */
        public function upgrade(): void {
                $version = get_option( 'wp_graphql_version', null );

                // If the version is not set, this is a fresh install, not an update.
                // set the version and return.
                if ( ! $version ) {
                        update_option( 'wp_graphql_version', WPGRAPHQL_VERSION );
                        return;
                }

                // If the version is less than the current version, run the update routine
                if ( version_compare( $version, WPGRAPHQL_VERSION, '<' ) ) {
                        $this->run_update_routines( $version );
                        update_option( 'wp_graphql_version', WPGRAPHQL_VERSION );
                }
        }

        /**
         * Executes update routines based on the previously stored version.
         *
         * This triggers an action that passes the previous version and new version and allows for specific actions or
         * modifications needed to bring installations up-to-date with the current plugin version.
         *
         * Each update routine (callback that hooks into "graphql_do_update_routine") should handle backward compatibility as gracefully as possible.
         *
         * @since 1.2.3
         * @param string|null $stored_version The version number currently stored in the database.
         *                                    Null if no version has been previously stored.
         */
        public function run_update_routines( ?string $stored_version = null ): void {

                // bail if the stored version is empty, or the WPGRAPHQL_VERSION constant is not set
                if ( ! defined( 'WPGRAPHQL_VERSION' ) || ! $stored_version ) {
                        return;
                }

                // If the stored version is less than the current version, run the upgrade routine
                if ( version_compare( $stored_version, WPGRAPHQL_VERSION, '<' ) ) {

                        // Clear the extensions cache
                        $this->clear_extensions_cache();

                        /**
                         * Fires the update routine.
                         *
                         * @param string $stored_version The version number currently stored in the database.
                         * @param string $new_version    The version number of the current plugin.
                         */
                        do_action( 'graphql_do_update_routine', $stored_version, WPGRAPHQL_VERSION );
                }
        }

        /**
         * Clear all caches in the "wpgraphql_extensions" cache group.
         */
        public function clear_extensions_cache(): void {
                global $wp_object_cache;

                if ( isset( $wp_object_cache->cache['wpgraphql_extensions'] ) ) {
                        foreach ( $wp_object_cache->cache['wpgraphql_extensions'] as $key => $value ) {
                                wp_cache_delete( $key, 'wpgraphql_extensions' );
                        }
                }
        }

        /**
         * Initialize admin functionality.
         */
        public function init_admin(): void {
                $admin = new Admin();
                $admin->init();
        }

        /**
         * This sets up built-in post_types and taxonomies to show in the GraphQL Schema.
         *
         * @since  0.0.2
         */
        public static function show_in_graphql(): void {
                add_filter( 'register_post_type_args', [ self::class, 'setup_default_post_types' ], 10, 2 );
                add_filter( 'register_taxonomy_args', [ self::class, 'setup_default_taxonomies' ], 10, 2 );

                // Run late so the user can filter the args themselves.
                add_filter( 'register_post_type_args', [ self::class, 'register_graphql_post_type_args' ], 99, 2 );
                add_filter( 'register_taxonomy_args', [ self::class, 'register_graphql_taxonomy_args' ], 99, 2 );
        }

        /**
         * Sets up the default post types to show_in_graphql.
         *
         * @param array<string,mixed> $args      Array of arguments for registering a post type.
         * @param string              $post_type Post type key.
         *
         * @return array<string,mixed>
         */
        public static function setup_default_post_types( $args, $post_type ) {
                // Adds GraphQL support for attachments.
                if ( 'attachment' === $post_type ) {
                        $args['show_in_graphql']     = true;
                        $args['graphql_single_name'] = 'mediaItem';
                        $args['graphql_plural_name'] = 'mediaItems';
                        $args['graphql_description'] = __( 'Represents uploaded media, including images, videos, documents, and audio files.', 'wp-graphql' );
                } elseif ( 'page' === $post_type ) { // Adds GraphQL support for pages.
                        $args['show_in_graphql']     = true;
                        $args['graphql_single_name'] = 'page';
                        $args['graphql_plural_name'] = 'pages';
                        $args['graphql_description'] = __( 'A standalone content entry generally used for static, non-chronological content such as "About Us" or "Contact" pages.', 'wp-graphql' );
                } elseif ( 'post' === $post_type ) { // Adds GraphQL support for posts.
                        $args['show_in_graphql']     = true;
                        $args['graphql_single_name'] = 'post';
                        $args['graphql_plural_name'] = 'posts';
                        $args['graphql_description'] = __( 'A chronological content entry typically used for blog posts, news articles, or similar date-based content.', 'wp-graphql' );
                }

                return $args;
        }

        /**
         * Sets up the default taxonomies to show_in_graphql.
         *
         * @param array<string,mixed> $args     Array of arguments for registering a taxonomy.
         * @param string              $taxonomy Taxonomy key.
         *
         * @return array<string,mixed>
         * @since 1.12.0
         */
        public static function setup_default_taxonomies( $args, $taxonomy ) {
                // Adds GraphQL support for categories.
                if ( 'category' === $taxonomy ) {
                        $args['show_in_graphql']     = true;
                        $args['graphql_single_name'] = 'category';
                        $args['graphql_plural_name'] = 'categories';
                        $args['graphql_description'] = __( 'A taxonomy term that classifies content. Categories support hierarchy and can be used to create a nested structure.', 'wp-graphql' );
                } elseif ( 'post_tag' === $taxonomy ) { // Adds GraphQL support for tags.
                        $args['show_in_graphql']     = true;
                        $args['graphql_single_name'] = 'tag';
                        $args['graphql_plural_name'] = 'tags';
                        $args['graphql_description'] = __( 'A taxonomy term used to organize and classify content. Tags do not have a hierarchy and are generally used for more specific classifications.', 'wp-graphql' );
                } elseif ( 'post_format' === $taxonomy ) { // Adds GraphQL support for post formats.
                        $args['show_in_graphql']     = true;
                        $args['graphql_single_name'] = 'postFormat';
                        $args['graphql_plural_name'] = 'postFormats';
                        $args['graphql_description'] = __( 'A standardized classification system for content presentation styles. These formats can be used to display content differently based on type, such as "standard", "gallery", "video", etc.', 'wp-graphql' );
                }

                return $args;
        }

        /**
         * Set the GraphQL Post Type Args and pass them through a filter.
         *
         * @param array<string,mixed> $args           The graphql specific args for the post type
         * @param string              $post_type_name The name of the post type being registered
         *
         * @return array<string,mixed>
         * @throws \Exception
         * @since 1.12.0
         */
        public static function register_graphql_post_type_args( array $args, string $post_type_name ): array {
                // Bail early if the post type is hidden from the WPGraphQL schema.
                if ( empty( $args['show_in_graphql'] ) ) {
                        return $args;
                }

                $graphql_args = self::get_default_graphql_type_args();

                /**
                 * Filters the graphql args set on a post type
                 *
                 * @param array<string,mixed> $args           The graphql specific args for the post type
                 * @param string              $post_type_name The name of the post type being registered
                 */
                $graphql_args = apply_filters( 'register_graphql_post_type_args', $graphql_args, $post_type_name );

                return wp_parse_args( $args, $graphql_args );
        }

        /**
         * Set the GraphQL Taxonomy Args and pass them through a filter.
         *
         * @param array<string,mixed> $args          The graphql specific args for the taxonomy
         * @param string              $taxonomy_name The name of the taxonomy being registered
         *
         * @return array<string,mixed>
         * @throws \Exception
         * @since 1.12.0
         */
        public static function register_graphql_taxonomy_args( array $args, string $taxonomy_name ): array {
                // Bail early if the taxonomy  is hidden from the WPGraphQL schema.
                if ( empty( $args['show_in_graphql'] ) ) {
                        return $args;
                }

                $graphql_args = self::get_default_graphql_type_args();

                /**
                 * Filters the graphql args set on a taxonomy
                 *
                 * @param array<string,mixed> $args          The graphql specific args for the taxonomy
                 * @param string              $taxonomy_name The name of the taxonomy being registered
                 */
                $graphql_args = apply_filters( 'register_graphql_taxonomy_args', $graphql_args, $taxonomy_name );

                return wp_parse_args( $args, $graphql_args );
        }

        /**
         * This sets the post type /taxonomy GraphQL properties.
         *
         * @since 1.12.0
         *
         * @return array{
         *   graphql_kind: 'interface'|'object'|'union',
         *   graphql_resolve_type: ?callable,
         *   graphql_interfaces: string[],
         *   graphql_connections: string[],
         *   graphql_union_types: string[],
         *   graphql_register_root_field: bool,
         *   graphql_register_root_connection: bool,
         * }
         */
        public static function get_default_graphql_type_args(): array {
                return [
                        // The "kind" of GraphQL type to register. Can be `interface`, `object`, or `union`.
                        'graphql_kind'                     => 'object',
                        // The callback used to resolve the type. Only used if `graphql_kind` is an `interface` or `union`.
                        'graphql_resolve_type'             => null,
                        // An array of custom interfaces the type should implement.
                        'graphql_interfaces'               => [],
                        // An array of default interfaces the type should exclude.
                        'graphql_exclude_interfaces'       => [],
                        // An array of custom connections the type should implement.
                        'graphql_connections'              => [],
                        // An array of default connection field names the type should exclude.
                        'graphql_exclude_connections'      => [],
                        // An array of possible type the union can resolve to. Only used if `graphql_kind` is a `union`.
                        'graphql_union_types'              => [],
                        // Whether to register default connections to the schema.
                        'graphql_register_root_field'      => true,
                        'graphql_register_root_connection' => true,
                ];
        }

        /**
         * Get the post types that are allowed to be used in GraphQL.
         *
         * This gets all post_types that are set to show_in_graphql, but allows for external code
         * (plugins/theme) to filter the list of allowed_post_types to add/remove additional post_types
         *
         * @param 'names'|'objects'   $output Optional. The type of output to return. Accepts post type 'names' or 'objects'. Default 'names'.
         * @param array<string,mixed> $args   Optional. Arguments to filter allowed post types
         *
         * @return string[]|\WP_Post_Type[]
         * @phpstan-return ( $output is 'objects' ? \WP_Post_Type[] : string[] )
         *
         * @since  0.0.4
         * @since  1.8.1 adds $output as first param, and stores post type objects in class property.
         */
        public static function get_allowed_post_types( $output = 'names', $args = [] ): array {
                // Support deprecated param order.
                if ( is_array( $output ) ) {
                        _deprecated_argument( __METHOD__, '1.8.1', 'Passing `$args` to the first parameter will no longer be supported in the next major version of WPGraphQL.' );
                        $args   = $output;
                        $output = 'names';
                }

                // Initialize array of allowed post type objects.
                if ( empty( self::$allowed_post_types ) ) {
                        /**
                         * Get all post types objects.
                         *
                         * @var \WP_Post_Type[] $post_type_objects
                         */
                        $post_type_objects = get_post_types(
                                [ 'show_in_graphql' => true ],
                                'objects'
                        );

                        $post_type_names = wp_list_pluck( $post_type_objects, 'name' );

                        /**
                         * Pass through a filter to allow the post_types to be modified.
                         * For example if a certain post_type should not be exposed to the GraphQL API.
                         *
                         * @param string[]        $post_type_names   Array of post type names.
                         * @param \WP_Post_Type[] $post_type_objects Array of post type objects.
                         *
                         * @since 1.8.1 add $post_type_objects parameter.
                         * @since 0.0.2
                         */
                        $allowed_post_type_names = apply_filters( 'graphql_post_entities_allowed_post_types', $post_type_names, $post_type_objects );

                        // Filter the post type objects if the list of allowed types have changed.
                        $post_type_objects = array_filter(
                                $post_type_objects,
                                static function ( $obj ) use ( $allowed_post_type_names ) {
                                        if ( empty( $obj->graphql_plural_name ) && ! empty( $obj->graphql_single_name ) ) {
                                                $obj->graphql_plural_name = $obj->graphql_single_name;
                                        }

                                        /**
                                         * Validate that the post_types have a graphql_single_name and graphql_plural_name
                                         */
                                        if ( empty( $obj->graphql_single_name ) || empty( $obj->graphql_plural_name ) ) {
                                                graphql_debug(
                                                        sprintf(
                                                        /* translators: %s will replaced with the registered type */
                                                                __( 'The "%s" post_type isn\'t configured properly to show in GraphQL. It needs a "graphql_single_name" and a "graphql_plural_name"', 'wp-graphql' ),
                                                                $obj->name
                                                        ),
                                                        [
                                                                'invalid_post_type' => $obj,
                                                        ]
                                                );
                                                return false;
                                        }

                                        return in_array( $obj->name, $allowed_post_type_names, true );
                                }
                        );

                        self::$allowed_post_types = $post_type_objects;
                }

                /**
                 * Filter the list of allowed post types either by the provided args or to only return an array of names.
                 */
                if ( ! empty( $args ) || 'names' === $output ) {
                        $field = 'names' === $output ? 'name' : false;

                        return wp_filter_object_list( self::$allowed_post_types, $args, 'and', $field );
                }

                return self::$allowed_post_types;
        }

        /**
         * Get the taxonomies that are allowed to be used in GraphQL.
         * This gets all taxonomies that are set to "show_in_graphql" but allows for external code
         * (plugins/themes) to filter the list of allowed_taxonomies to add/remove additional
         * taxonomies
         *
         * @param 'names'|'objects'   $output Optional. The type of output to return. Accepts taxonomy 'names' or 'objects'. Default 'names'.
         * @param array<string,mixed> $args   Optional. Arguments to filter allowed taxonomies.
         *
         * @return string[]|\WP_Taxonomy[]
         * @phpstan-return ( $output is 'objects' ? \WP_Taxonomy[] : string[] )
         * @since  0.0.4
         */
        public static function get_allowed_taxonomies( $output = 'names', $args = [] ): array {

                // Initialize array of allowed post type objects.
                if ( empty( self::$allowed_taxonomies ) ) {
                        /**
                         * Get all post types objects.
                         *
                         * @var \WP_Taxonomy[] $tax_objects
                         */
                        $tax_objects = get_taxonomies(
                                [ 'show_in_graphql' => true ],
                                'objects'
                        );

                        $tax_names = wp_list_pluck( $tax_objects, 'name' );

                        /**
                         * Pass through a filter to allow the taxonomies to be modified.
                         * For example if a certain taxonomy should not be exposed to the GraphQL API.
                         *
                         * @param string[]       $tax_names   Array of taxonomy names
                         * @param \WP_Taxonomy[] $tax_objects Array of taxonomy objects.
                         *
                         * @since 1.8.1 add $tax_names and $tax_objects parameters.
                         * @since 0.0.2
                         */
                        $allowed_tax_names = apply_filters( 'graphql_term_entities_allowed_taxonomies', $tax_names, $tax_objects );

                        $tax_objects = array_filter(
                                $tax_objects,
                                static function ( $obj ) use ( $allowed_tax_names ) {
                                        if ( empty( $obj->graphql_plural_name ) && ! empty( $obj->graphql_single_name ) ) {
                                                $obj->graphql_plural_name = $obj->graphql_single_name;
                                        }

                                        /**
                                         * Validate that the post_types have a graphql_single_name and graphql_plural_name
                                         */
                                        if ( empty( $obj->graphql_single_name ) || empty( $obj->graphql_plural_name ) ) {
                                                graphql_debug(
                                                        sprintf(
                                                        /* translators: %s will replaced with the registered taxonomy */
                                                                __( 'The "%s" taxonomy isn\'t configured properly to show in GraphQL. It needs a "graphql_single_name" and a "graphql_plural_name"', 'wp-graphql' ),
                                                                $obj->name
                                                        ),
                                                        [
                                                                'invalid_taxonomy' => $obj,
                                                        ]
                                                );
                                                return false;
                                        }

                                        return in_array( $obj->name, $allowed_tax_names, true );
                                }
                        );

                        self::$allowed_taxonomies = $tax_objects;
                }

                $taxonomies = self::$allowed_taxonomies;
                /**
                 * Filter the list of allowed taxonomies either by the provided args or to only return an array of names.
                 */
                if ( ! empty( $args ) || 'names' === $output ) {
                        $field = 'names' === $output ? 'name' : false;

                        $taxonomies = wp_filter_object_list( $taxonomies, $args, 'and', $field );
                }

                return $taxonomies;
        }

        /**
         * Allow Schema to be cleared.
         */
        public static function clear_schema(): void {
                self::$type_registry      = null;
                self::$schema             = null;
                self::$allowed_post_types = null;
                self::$allowed_taxonomies = null;
        }

        /**
         * Returns the Schema as defined by static registrations throughout
         * the WP Load.
         *
         * @return \WPGraphQL\WPSchema
         *
         * @throws \Exception
         */
        public static function get_schema() {
                if ( ! isset( self::$schema ) ) {
                        $schema_registry = new SchemaRegistry();
                        $schema          = $schema_registry->get_schema();

                        /**
                         * Generate & Filter the schema.
                         *
                         * @param \WPGraphQL\WPSchema $schema The executable Schema that GraphQL executes against
                         * @param \WPGraphQL\AppContext $app_context Object The AppContext object containing all of the
                         * information about the context we know at this point
                         *
                         * @since 0.0.5
                         */
                        self::$schema = apply_filters( 'graphql_schema', $schema, self::get_app_context() );
                }

                /**
                 * Fire an action when the Schema is returned
                 */
                do_action( 'graphql_get_schema', self::$schema );

                /**
                 * Return the Schema after applying filters
                 */
                return self::$schema;
        }

        /**
         * Whether WPGraphQL is operating in Debug mode
         */
        public static function debug(): bool {
                if ( defined( 'GRAPHQL_DEBUG' ) ) {
                        $enabled = (bool) GRAPHQL_DEBUG;
                } else {
                        $enabled = get_graphql_setting( 'debug_mode_enabled', 'off' );
                        $enabled = 'on' === $enabled;
                }

                /**
                 * @param bool $enabled Whether GraphQL Debug is enabled or not
                 */
                return (bool) apply_filters( 'graphql_debug_enabled', $enabled );
        }

        /**
         * Returns the type registry, instantiating it if it doesn't exist.
         *
         * @return \WPGraphQL\Registry\TypeRegistry
         *
         * @throws \Exception
         */
        public static function get_type_registry() {
                if ( ! isset( self::$type_registry ) ) {
                        $type_registry = new TypeRegistry();

                        /**
                         * Generate & Filter the schema.
                         *
                         * @param \WPGraphQL\Registry\TypeRegistry $type_registry The TypeRegistry for the API
                         * @param \WPGraphQL\AppContext $app_context Object The AppContext object containing all of the
                         * information about the context we know at this point
                         *
                         * @since 0.0.5
                         */
                        self::$type_registry = apply_filters( 'graphql_type_registry', $type_registry, self::get_app_context() );
                }

                /**
                 * Fire an action when the Type Registry is returned
                 */
                do_action( 'graphql_get_type_registry', self::$type_registry );

                /**
                 * Return the Schema after applying filters
                 */
                return self::$type_registry;
        }

        /**
         * Return the static schema if there is one.
         */
        public static function get_static_schema(): ?string {
                $schema_file = WPGRAPHQL_PLUGIN_DIR . 'schema.graphql';

                if ( ! file_exists( $schema_file ) ) {
                        return null;
                }

                $schema = file_get_contents( WPGRAPHQL_PLUGIN_DIR . 'schema.graphql' );

                return ! empty( $schema ) ? $schema : null;
        }

        /**
         * Get the AppContext for use in passing down the Resolve Tree
         */
        public static function get_app_context(): AppContext {
                /**
                 * Configure the app_context which gets passed down to all the resolvers.
                 *
                 * @since 0.0.4
                 */
                $app_context           = new AppContext();
                $app_context->viewer   = wp_get_current_user();
                $app_context->root_url = get_bloginfo( 'url' );
                $app_context->request  = ! empty( $_REQUEST ) ? $_REQUEST : null; // phpcs:ignore WordPress.Security.NonceVerification.Recommended

                return $app_context;
        }
}

wp-graphql / wp-graphql / 18790791685

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