Add script and style REST APIs

lib/class-wp-rest-dependencies-controller.php

@@ -0,0 +1,288 @@
+<?php
+/**
+ * Dependencies controller.
+ *
+ * @package gutenberg
+ */
+
+/**
+ * Extendable dependency class.
+ *
+ * Class WP_REST_Dependencies_Controller
+ *
+ * @see WP_REST_Controller
+ */
+class WP_REST_Dependencies_Controller extends WP_REST_Controller {
+
+	/**
+	 * Dependencies core object.
+	 *
+	 * @var Object
+	 */
+	protected $object;
+
+
+	/**
+	 * $editor_block_dependency
+	 *
+	 * @var string
+	 */
+	protected $editor_block_dependency = '';
+
+
+	/**
+	 * $block_dependency
+	 *
+	 * @var string
+	 */
+	protected $block_dependency = '';
+
+	/**
+	 * Register routes.
+	 */
+	public function register_routes() {
+		register_rest_route(
+			$this->namespace,
+			'/' . $this->rest_base,
+			array(
+				array(
+					'methods'             => WP_REST_Server::READABLE,
+					'callback'            => array( $this, 'get_items' ),
+					'permission_callback' => array( $this, 'get_items_permissions_check' ),
+					'args'                => $this->get_collection_params(),
+				),
+				'schema' => array( $this, 'get_item_schema' ),
+			)
+		);
+
+		$get_item_args = array(
+			'context' => $this->get_context_param( array( 'default' => 'view' ) ),
+		);
+
+		register_rest_route(
+			$this->namespace,
+			'/' . $this->rest_base . '/(?P<handle>[\w-]+)',
+			array(
+				'args'   => array(
+					'handle' => array(
+						'description' => __( 'Unique identifier for the object.', 'gutenberg' ),
+						'type'        => 'string',
+					),
+				),
+				array(
+					'methods'             => WP_REST_Server::READABLE,
+					'callback'            => array( $this, 'get_item' ),
+					'permission_callback' => array( $this, 'get_item_permissions_check' ),
+					'args'                => $get_item_args,
+				),
+				'schema' => array( $this, 'get_public_item_schema' ),
+			)
+		);
+	}
+
+	/**
+	 * Get list of dependencies.
+	 *
+	 * @param WP_REST_Request $request Request.
+	 *
+	 * @return array|WP_Error|WP_REST_Response
+	 */
+	public function get_items( $request ) {
+		$data   = [];
+		$handle = $request['dependency'];
+		$filter = [];
+		if ( $handle ) {
+			$this->object->all_deps( $handle );
+			$filter = $this->object->to_do;
+		}
+
+		if ( $handle ) {
+			foreach ( $filter as $dependency_handle ) {
+				foreach ( $this->object->registered as $dependency ) {
+					if ( $dependency_handle === $dependency->handle ) {
+						$item   = $this->prepare_item_for_response( $dependency, $request );
+						$data[] = $this->prepare_response_for_collection( $item );
+					}
+				}
+			}
+		} else {
+			foreach ( $this->object->registered as $dependency ) {
+				$item   = $this->prepare_item_for_response( $dependency, $request );
+				$data[] = $this->prepare_response_for_collection( $item );
+			}
+		}
+
+		return $data;
+	}
+
+	/**
+	 * Get a single depencies.
+	 *
+	 * @param WP_REST_Request $request Request.
+	 *
+	 * @return array|mixed|WP_Error|WP_REST_Response
+	 */
+	public function get_item( $request ) {
+		if ( ! isset( $this->object->registered[ $request['handle'] ] ) ) {
+			return [];
+		}
+		$dependency = $this->object->registered[ $request['handle'] ];
+		$data       = $this->prepare_item_for_response( $dependency, $request );
+
+		return $data;
+	}
+
+	/**
+	 * Prepare item for response.
+	 *
+	 * @param mixed           $dependency Dependency.
+	 * @param WP_REST_Request $request Request.
+	 *
+	 * @return mixed|WP_Error|WP_REST_Response
+	 */
+	public function prepare_item_for_response( $dependency, $request ) {
+		$dependency->url = $this->get_url( $dependency->src, $dependency->ver, $dependency->handle );
+		$response        = rest_ensure_response( (array) $dependency );
+		$dependencies    = $this->prepare_links( $dependency );
+		$response->add_links( $dependencies );
+
+		return $response;
+	}
+
+	/**
+	 * Permission check.
+	 *
+	 * @param WP_REST_Request $request Request.
+	 *
+	 * @return bool|true|WP_Error
+	 */
+	public function get_items_permissions_check( $request ) {
+		if ( $this->check_handle( $request['dependency'] ) ) {
+			return true;
+		}
+
+		return current_user_can( 'manage_options' );
+	}
+
+	/**
+	 * Permission check.
+	 *
+	 * @param WP_REST_Request $request Request.
+	 *
+	 * @return bool|true|WP_Error
+	 */
+	public function get_item_permissions_check( $request ) {
+		if ( $this->check_handle( $request['handle'] ) ) {
+			return true;
+		}
+
+		return current_user_can( 'manage_options' );
+	}
+
+	/**
+	 * Prepare links.
+	 *
+	 * @param object $dependency Dependency.
+	 *
+	 * @return array
+	 */
+	protected function prepare_links( $dependency ) {
+		$base = sprintf( '%s/%s', $this->namespace, $this->rest_base );
+		// Entity meta.
+		$links = array(
+			'self'       => array(
+				'href' => rest_url( trailingslashit( $base ) . $dependency->handle ),
+			),
+			'collection' => array(
+				'href' => rest_url( $base ),
+			),
+			'deps'       => array(
+				'href' => rest_url( trailingslashit( $base ) . '?dependency=' . $dependency->handle ),
+			),
+		);
+
+		return $links;
+	}
+
+	/**
+	 * Get collection params.
+	 *
+	 * @return array
+	 */
+	public function get_collection_params() {
+		$query_params                       = parent::get_collection_params();
+		$query_params['context']['default'] = 'view';
+
+		$query_params['dependency'] = array(
+			'description' => __( 'Dependency.', 'gutenberg' ),
+			'type'        => 'string',
+		);
+
+		return $query_params;
+	}
+
+	/**
+	 * Check handle exists and is viewable.
+	 *
+	 * @param string $handle script / style handle.
+	 *
+	 * @return bool
+	 */
+	protected function check_handle( $handle ) {
+
+		if ( ! $handle ) {
+			return false;
+		}
+
+		// All core assets should be public.
+		if ( in_array( $handle, $this->get_core_assets(), true ) ) {
+			return true;
+		}
+
+		// All block public assets should also be public.
+		if ( in_array( $handle, $this->block_asset( $this->block_dependency ), true ) ) {
+			return true;
+		}
+
+		// All block edit assets should check if user is logged in and has the ability to using the editor.
+		if ( in_array( $handle, $this->block_asset( $this->editor_block_dependency ), true ) ) {
+			return current_user_can( 'edit_posts' );
+		}
+
+		return false;
+	}
+
+	/**
+	 * Get core assets.
+	 *
+	 * @return array
+	 */
+	public function get_core_assets() {
+		/* translators: %s: Method name. */
+		_doing_it_wrong( sprintf( __( "Method '%s' not implemented. Must be overridden in subclass.", 'gutenberg' ), __METHOD__ ), 'x.x' );
+
+		return array();
+	}
+
+	/**
+	 * Block asset.
+	 *
+	 * @param string $field Field to pluck from list of objects.
+	 *
+	 * @return array
+	 */
+	protected function block_asset( $field ) {
+		if ( ! $field ) {
+			return array();
+		}
+
+		$block_registry = WP_Block_Type_Registry::get_instance();
+		$blocks         = $block_registry->get_all_registered();
+		$handles        = wp_list_pluck( $blocks, $field );
+		$handles        = array_values( $handles );
+		$handles        = array_filter( $handles );
+
+		return $handles;
+	}
+
+}

lib/class-wp-rest-scripts-controller.php

@@ -0,0 +1,61 @@
+<?php
+/**
+ * Scripts controller.
+ *
+ * @package gutenberg
+ */
+
+/**
+ * Class WP_REST_Scripts_Controller
+ */
+class WP_REST_Scripts_Controller extends WP_REST_Dependencies_Controller {
+	/**
+	 * WP_REST_Scripts_Controller constructor.
+	 */
+	public function __construct() {
+		$this->namespace               = 'wp/v2';
+		$this->rest_base               = 'scripts';
+		$this->editor_block_dependency = 'editor_script';
+		$this->block_dependency        = 'script';
+		$this->object                  = wp_scripts();
+	}
+
+	/**
+	 * Helper to get Script URL.
+	 *
+	 * @param string $src Script URL.
+	 * @param string $ver Version URL.
+	 * @param string $handle Handle name.
+	 *
+	 * @return string
+	 */
+	public function get_url( $src, $ver, $handle ) {
+		if ( ! is_bool( $src ) && ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->object->content_url && 0 === strpos( $src, $this->object->content_url ) ) ) {
+			$src = $this->object->base_url . $src;
+		}
+		if ( ! empty( $ver ) ) {
+			$src = add_query_arg( 'ver', $ver, $src );
+		}
+
+		/** This filter is documented in wp-includes/class.wp-scripts.php */
+		$src = esc_url( apply_filters( 'script_loader_src', $src, $handle ) );
+
+		return esc_url( $src );
+	}
+
+	/**
+	 * Get core assets.
+	 *
+	 * @return array
+	 */
+	public function get_core_assets() {
+		$wp_scripts = new WP_Scripts();
+		wp_default_scripts( $wp_scripts );
+		wp_default_packages_vendor( $wp_scripts );
+		wp_default_packages_scripts( $wp_scripts );
+		$handles = wp_list_pluck( $wp_scripts->registered, 'handle' );
+		$handles = array_values( $handles );
+
+		return $handles;
+	}
+}