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Edit File: class-wp-connector-registry.php
<?php /** * Connectors API: WP_Connector_Registry class. * * @package WordPress * @subpackage Connectors * @since 7.0.0 */ /** * Manages the registration and lookup of connectors. * * This is an internal class. Use the public API functions to interact with connectors: * * - `wp_is_connector_registered()` — check if a connector exists. * - `wp_get_connector()` — retrieve a single connector's data. * - `wp_get_connectors()` — retrieve all registered connectors. * * Plugins receive the registry instance via the `wp_connectors_init` action * to register or override connectors directly. * * @since 7.0.0 * @access private * * @see wp_is_connector_registered() * @see wp_get_connector() * @see wp_get_connectors() * @see _wp_connectors_init() * * @phpstan-type Connector array{ * name: non-empty-string, * description: string, * logo_url?: non-empty-string, * type: non-empty-string, * authentication: array{ * method: 'api_key'|'none', * credentials_url?: non-empty-string, * setting_name?: non-empty-string, * constant_name?: non-empty-string, * env_var_name?: non-empty-string * }, * plugin: array{ * file?: non-empty-string, * is_active: callable(): bool * } * } */ final class WP_Connector_Registry { /** * The singleton instance of the registry. * * @since 7.0.0 */ private static ?WP_Connector_Registry $instance = null; /** * Holds the registered connectors. * * Each connector is stored as an associative array with keys: * name, description, type, authentication, and optionally plugin. * * @since 7.0.0 * @var array<string, array> * @phpstan-var array<string, Connector> */ private array $registered_connectors = array(); /** * Registers a new connector. * * Validates the provided arguments and stores the connector in the registry. * For connectors with `api_key` authentication, a `setting_name` can be provided * explicitly. If omitted, one is automatically generated using the pattern * `connectors_{$type}_{$id}_api_key`, with hyphens in the type and ID normalized * to underscores (e.g., connector type `spam_filtering` with ID `my_plugin` produces * `connectors_spam_filtering_my_plugin_api_key`). This setting name is used for the * Settings API registration and REST API exposure. * * Registering a connector with an ID that is already registered will trigger a * `_doing_it_wrong()` notice and return `null`. To override an existing connector, * call `unregister()` first. * * @since 7.0.0 * * @see WP_Connector_Registry::unregister() * * @param string $id The unique connector identifier. Must match the pattern * `/^[a-z0-9_-]+$/` (lowercase alphanumeric, hyphens, and underscores only). * @param array $args { * An associative array of arguments for the connector. * * @type string $name Required. The connector's display name. * @type string $description Optional. The connector's description. Default empty string. * @type string $logo_url Optional. URL to the connector's logo image. * @type string $type Required. The connector type, e.g. 'ai_provider'. * @type array $authentication { * Required. Authentication configuration. * * @type string $method Required. The authentication method: 'api_key' or 'none'. * @type string $credentials_url Optional. URL where users can obtain API credentials. * @type string $setting_name Optional. The setting name for the API key. * When omitted, auto-generated as * `connectors_{$type}_{$id}_api_key`. * Must be a non-empty string when provided. * @type string $constant_name Optional. PHP constant name for the API key * (e.g. 'ANTHROPIC_API_KEY'). Only checked when provided. * @type string $env_var_name Optional. Environment variable name for the API key * (e.g. 'ANTHROPIC_API_KEY'). Only checked when provided. * } * @type array $plugin { * Optional. Plugin data for install/activate UI. * * @type string $file Optional. The plugin's main file path relative to the * plugins directory (e.g. 'my-plugin/my-plugin.php' or * 'hello.php'). * @type callable $is_active Optional callback to determine whether the plugin * is active. Receives no arguments and must return bool. * Defaults to `__return_true`. * } * } * @return array|null The registered connector data on success, null on failure. * * @phpstan-param array{ * name: non-empty-string, * description?: string, * logo_url?: non-empty-string, * type: non-empty-string, * authentication: array{ * method: 'api_key'|'none', * credentials_url?: non-empty-string, * setting_name?: non-empty-string, * constant_name?: non-empty-string, * env_var_name?: non-empty-string * }, * plugin?: array{ * file?: non-empty-string, * is_active?: callable(): bool * } * } $args * @phpstan-return Connector|null */ public function register( string $id, array $args ): ?array { if ( ! preg_match( '/^[a-z0-9_-]+$/', $id ) ) { _doing_it_wrong( __METHOD__, __( 'Connector ID must contain only lowercase alphanumeric characters, hyphens, and underscores.' ), '7.0.0' ); return null; } if ( $this->is_registered( $id ) ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" is already registered.' ), esc_html( $id ) ), '7.0.0' ); return null; } // Validate required fields. if ( empty( $args['name'] ) || ! is_string( $args['name'] ) ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" requires a non-empty "name" string.' ), esc_html( $id ) ), '7.0.0' ); return null; } if ( empty( $args['type'] ) || ! is_string( $args['type'] ) ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" requires a non-empty "type" string.' ), esc_html( $id ) ), '7.0.0' ); return null; } if ( ! isset( $args['authentication'] ) || ! is_array( $args['authentication'] ) ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" requires an "authentication" array.' ), esc_html( $id ) ), '7.0.0' ); return null; } if ( empty( $args['authentication']['method'] ) || ! in_array( $args['authentication']['method'], array( 'api_key', 'none' ), true ) ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" authentication method must be "api_key" or "none".' ), esc_html( $id ) ), '7.0.0' ); return null; } if ( 'ai_provider' === $args['type'] && ! wp_supports_ai() ) { // No need for a `doing_it_wrong` as AI support is disabled intentionally. return null; } $connector = array( 'name' => $args['name'], 'description' => isset( $args['description'] ) && is_string( $args['description'] ) ? $args['description'] : '', 'type' => $args['type'], 'authentication' => array( 'method' => $args['authentication']['method'], ), ); if ( ! empty( $args['logo_url'] ) && is_string( $args['logo_url'] ) ) { $connector['logo_url'] = $args['logo_url']; } if ( 'api_key' === $args['authentication']['method'] ) { if ( ! empty( $args['authentication']['credentials_url'] ) && is_string( $args['authentication']['credentials_url'] ) ) { $connector['authentication']['credentials_url'] = $args['authentication']['credentials_url']; } if ( isset( $args['authentication']['setting_name'] ) ) { if ( ! is_string( $args['authentication']['setting_name'] ) || '' === $args['authentication']['setting_name'] ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" authentication setting_name must be a non-empty string.' ), esc_html( $id ) ), '7.0.0' ); return null; } $connector['authentication']['setting_name'] = $args['authentication']['setting_name']; } else { $connector['authentication']['setting_name'] = str_replace( '-', '_', "connectors_{$connector['type']}_{$id}_api_key" ); } if ( isset( $args['authentication']['constant_name'] ) ) { if ( ! is_string( $args['authentication']['constant_name'] ) || '' === $args['authentication']['constant_name'] ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" authentication constant_name must be a non-empty string.' ), esc_html( $id ) ), '7.0.0' ); return null; } $connector['authentication']['constant_name'] = $args['authentication']['constant_name']; } if ( isset( $args['authentication']['env_var_name'] ) ) { if ( ! is_string( $args['authentication']['env_var_name'] ) || '' === $args['authentication']['env_var_name'] ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" authentication env_var_name must be a non-empty string.' ), esc_html( $id ) ), '7.0.0' ); return null; } $connector['authentication']['env_var_name'] = $args['authentication']['env_var_name']; } } $connector['plugin'] = array(); if ( ! empty( $args['plugin'] ) && is_array( $args['plugin'] ) ) { if ( ! empty( $args['plugin']['file'] ) ) { $connector['plugin']['file'] = $args['plugin']['file']; } if ( isset( $args['plugin']['is_active'] ) ) { if ( ! is_callable( $args['plugin']['is_active'] ) ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" plugin is_active must be callable.' ), esc_html( $id ) ), '7.0.0' ); return null; } $connector['plugin']['is_active'] = $args['plugin']['is_active']; } } if ( ! isset( $connector['plugin']['is_active'] ) ) { $connector['plugin']['is_active'] = '__return_true'; } $this->registered_connectors[ $id ] = $connector; return $connector; } /** * Unregisters a connector. * * Returns the connector data on success, which can be modified and passed * back to `register()` to override a connector's metadata. * * Triggers a `_doing_it_wrong()` notice if the connector is not registered. * Use `is_registered()` to check first when the connector may not exist. * * @since 7.0.0 * * @see WP_Connector_Registry::register() * @see WP_Connector_Registry::is_registered() * * @param string $id The connector identifier. * @return array|null The unregistered connector data on success, null on failure. * * @phpstan-return Connector|null */ public function unregister( string $id ): ?array { if ( ! $this->is_registered( $id ) ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" not found.' ), esc_html( $id ) ), '7.0.0' ); return null; } $unregistered = $this->registered_connectors[ $id ]; unset( $this->registered_connectors[ $id ] ); return $unregistered; } /** * Retrieves the list of all registered connectors. * * Do not use this method directly. Instead, use the `wp_get_connectors()` function. * * @since 7.0.0 * * @see wp_get_connectors() * * @return array Connector settings keyed by connector ID. * * @phpstan-return array<string, Connector> */ public function get_all_registered(): array { return $this->registered_connectors; } /** * Checks if a connector is registered. * * Do not use this method directly. Instead, use the `wp_is_connector_registered()` function. * * @since 7.0.0 * * @see wp_is_connector_registered() * * @param string $id The connector identifier. * @return bool True if the connector is registered, false otherwise. */ public function is_registered( string $id ): bool { return isset( $this->registered_connectors[ $id ] ); } /** * Retrieves a registered connector. * * Do not use this method directly. Instead, use the `wp_get_connector()` function. * * Triggers a `_doing_it_wrong()` notice if the connector is not registered. * Use `is_registered()` to check first when the connector may not exist. * * @since 7.0.0 * * @see wp_get_connector() * * @param string $id The connector identifier. * @return array|null The registered connector data, or null if it is not registered. * @phpstan-return Connector|null */ public function get_registered( string $id ): ?array { if ( ! $this->is_registered( $id ) ) { _doing_it_wrong( __METHOD__, /* translators: %s: Connector ID. */ sprintf( __( 'Connector "%s" not found.' ), esc_html( $id ) ), '7.0.0' ); return null; } return $this->registered_connectors[ $id ]; } /** * Retrieves the main instance of the registry class. * * @since 7.0.0 * * @return WP_Connector_Registry|null The main registry instance, or null if not yet initialized. */ public static function get_instance(): ?self { return self::$instance; } /** * Sets the main instance of the registry class. * * Called by `_wp_connectors_init()` during the `init` action. Must not be * called outside of that context. * * @since 7.0.0 * @access private * * @see _wp_connectors_init() * * @param WP_Connector_Registry $registry The registry instance. */ public static function set_instance( WP_Connector_Registry $registry ): void { if ( ! doing_action( 'init' ) ) { _doing_it_wrong( __METHOD__, __( 'The connector registry instance must be set during the <code>init</code> action.' ), '7.0.0' ); return; } self::$instance = $registry; } }