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   1  <?php
   2  /**
   3   * REST API: WP_REST_Block_Directory_Controller class
   4   *
   5   * @package WordPress
   6   * @subpackage REST_API
   7   * @since 5.5.0
   8   */
   9  
  10  /**
  11   * Controller which provides REST endpoint for the blocks.
  12   *
  13   * @since 5.5.0
  14   *
  15   * @see WP_REST_Controller
  16   */
  17  class WP_REST_Block_Directory_Controller extends WP_REST_Controller {
  18  
  19      /**
  20       * Constructs the controller.
  21       */
  22  	public function __construct() {
  23          $this->namespace = 'wp/v2';
  24          $this->rest_base = 'block-directory';
  25      }
  26  
  27      /**
  28       * Registers the necessary REST API routes.
  29       */
  30  	public function register_routes() {
  31          register_rest_route(
  32              $this->namespace,
  33              '/' . $this->rest_base . '/search',
  34              array(
  35                  array(
  36                      'methods'             => WP_REST_Server::READABLE,
  37                      'callback'            => array( $this, 'get_items' ),
  38                      'permission_callback' => array( $this, 'get_items_permissions_check' ),
  39                      'args'                => $this->get_collection_params(),
  40                  ),
  41                  'schema' => array( $this, 'get_public_item_schema' ),
  42              )
  43          );
  44      }
  45  
  46      /**
  47       * Checks whether a given request has permission to install and activate plugins.
  48       *
  49       * @since 5.5.0
  50       *
  51       * @param WP_REST_Request $request Full details about the request.
  52       *
  53       * @return true|WP_Error True if the request has permission, WP_Error object otherwise.
  54       */
  55  	public function get_items_permissions_check( $request ) {
  56          if ( ! current_user_can( 'install_plugins' ) || ! current_user_can( 'activate_plugins' ) ) {
  57              return new WP_Error(
  58                  'rest_block_directory_cannot_view',
  59                  __( 'Sorry, you are not allowed to browse the block directory.' ),
  60                  array( 'status' => rest_authorization_required_code() )
  61              );
  62          }
  63  
  64          return true;
  65      }
  66  
  67      /**
  68       * Search and retrieve blocks metadata
  69       *
  70       * @since 5.5.0
  71       *
  72       * @param WP_REST_Request $request Full details about the request.
  73       *
  74       * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
  75       */
  76  	public function get_items( $request ) {
  77          require_once ABSPATH . 'wp-admin/includes/plugin-install.php';
  78          require_once ABSPATH . 'wp-admin/includes/plugin.php';
  79  
  80          $response = plugins_api(
  81              'query_plugins',
  82              array(
  83                  'block'    => $request['term'],
  84                  'per_page' => $request['per_page'],
  85                  'page'     => $request['page'],
  86              )
  87          );
  88  
  89          if ( is_wp_error( $response ) ) {
  90              $response->add_data( array( 'status' => 500 ) );
  91  
  92              return $response;
  93          }
  94  
  95          $result = array();
  96  
  97          foreach ( $response->plugins as $plugin ) {
  98              // If the API returned a plugin with empty data for 'blocks', skip it.
  99              if ( empty( $plugin['blocks'] ) ) {
 100                  continue;
 101              }
 102  
 103              $data     = $this->prepare_item_for_response( $plugin, $request );
 104              $result[] = $this->prepare_response_for_collection( $data );
 105          }
 106  
 107          return rest_ensure_response( $result );
 108      }
 109  
 110      /**
 111       * Parse block metadata for a block, and prepare it for an API repsonse.
 112       *
 113       * @since 5.5.0
 114       *
 115       * @param array           $plugin  The plugin metadata.
 116       * @param WP_REST_Request $request Request object.
 117       *
 118       * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
 119       */
 120  	public function prepare_item_for_response( $plugin, $request ) {
 121          // There might be multiple blocks in a plugin. Only the first block is mapped.
 122          $block_data = reset( $plugin['blocks'] );
 123  
 124          // A data array containing the properties we'll return.
 125          $block = array(
 126              'name'                => $block_data['name'],
 127              'title'               => ( $block_data['title'] ? $block_data['title'] : $plugin['name'] ),
 128              'description'         => wp_trim_words( $plugin['short_description'], 30, '...' ),
 129              'id'                  => $plugin['slug'],
 130              'rating'              => $plugin['rating'] / 20,
 131              'rating_count'        => (int) $plugin['num_ratings'],
 132              'active_installs'     => (int) $plugin['active_installs'],
 133              'author_block_rating' => $plugin['author_block_rating'] / 20,
 134              'author_block_count'  => (int) $plugin['author_block_count'],
 135              'author'              => wp_strip_all_tags( $plugin['author'] ),
 136              'icon'                => ( isset( $plugin['icons']['1x'] ) ? $plugin['icons']['1x'] : 'block-default' ),
 137              'last_updated'        => gmdate( 'Y-m-d\TH:i:s', strtotime( $plugin['last_updated'] ) ),
 138              'humanized_updated'   => sprintf(
 139                  /* translators: %s: Human-readable time difference. */
 140                  __( '%s ago' ),
 141                  human_time_diff( strtotime( $plugin['last_updated'] ) )
 142              ),
 143          );
 144  
 145          $this->add_additional_fields_to_object( $block, $request );
 146  
 147          $response = new WP_REST_Response( $block );
 148          $response->add_links( $this->prepare_links( $plugin ) );
 149  
 150          return $response;
 151      }
 152  
 153      /**
 154       * Generates a list of links to include in the response for the plugin.
 155       *
 156       * @since 5.5.0
 157       *
 158       * @param array $plugin The plugin data from WordPress.org.
 159       *
 160       * @return array
 161       */
 162  	protected function prepare_links( $plugin ) {
 163          $links = array(
 164              'https://api.w.org/install-plugin' => array(
 165                  'href' => add_query_arg( 'slug', urlencode( $plugin['slug'] ), rest_url( 'wp/v2/plugins' ) ),
 166              ),
 167          );
 168  
 169          $plugin_file = $this->find_plugin_for_slug( $plugin['slug'] );
 170  
 171          if ( $plugin_file ) {
 172              $links['https://api.w.org/plugin'] = array(
 173                  'href'       => rest_url( 'wp/v2/plugins/' . substr( $plugin_file, 0, - 4 ) ),
 174                  'embeddable' => true,
 175              );
 176          }
 177  
 178          return $links;
 179      }
 180  
 181      /**
 182       * Finds an installed plugin for the given slug.
 183       *
 184       * @since 5.5.0
 185       *
 186       * @param string $slug The WordPress.org directory slug for a plugin.
 187       *
 188       * @return string The plugin file found matching it.
 189       */
 190  	protected function find_plugin_for_slug( $slug ) {
 191          require_once ABSPATH . 'wp-admin/includes/plugin.php';
 192  
 193          $plugin_files = get_plugins( '/' . $slug );
 194  
 195          if ( ! $plugin_files ) {
 196              return '';
 197          }
 198  
 199          $plugin_files = array_keys( $plugin_files );
 200  
 201          return $slug . '/' . reset( $plugin_files );
 202      }
 203  
 204      /**
 205       * Retrieves the theme's schema, conforming to JSON Schema.
 206       *
 207       * @since 5.5.0
 208       *
 209       * @return array Item schema data.
 210       */
 211  	public function get_item_schema() {
 212          if ( $this->schema ) {
 213              return $this->add_additional_fields_schema( $this->schema );
 214          }
 215  
 216          $this->schema = array(
 217              '$schema'    => 'http://json-schema.org/draft-04/schema#',
 218              'title'      => 'block-directory-item',
 219              'type'       => 'object',
 220              'properties' => array(
 221                  'name'                => array(
 222                      'description' => __( 'The block name, in namespace/block-name format.' ),
 223                      'type'        => 'string',
 224                      'context'     => array( 'view' ),
 225                  ),
 226                  'title'               => array(
 227                      'description' => __( 'The block title, in human readable format.' ),
 228                      'type'        => 'string',
 229                      'context'     => array( 'view' ),
 230                  ),
 231                  'description'         => array(
 232                      'description' => __( 'A short description of the block, in human readable format.' ),
 233                      'type'        => 'string',
 234                      'context'     => array( 'view' ),
 235                  ),
 236                  'id'                  => array(
 237                      'description' => __( 'The block slug.' ),
 238                      'type'        => 'string',
 239                      'context'     => array( 'view' ),
 240                  ),
 241                  'rating'              => array(
 242                      'description' => __( 'The star rating of the block.' ),
 243                      'type'        => 'integer',
 244                      'context'     => array( 'view' ),
 245                  ),
 246                  'rating_count'        => array(
 247                      'description' => __( 'The number of ratings.' ),
 248                      'type'        => 'integer',
 249                      'context'     => array( 'view' ),
 250                  ),
 251                  'active_installs'     => array(
 252                      'description' => __( 'The number sites that have activated this block.' ),
 253                      'type'        => 'string',
 254                      'context'     => array( 'view' ),
 255                  ),
 256                  'author_block_rating' => array(
 257                      'description' => __( 'The average rating of blocks published by the same author.' ),
 258                      'type'        => 'integer',
 259                      'context'     => array( 'view' ),
 260                  ),
 261                  'author_block_count'  => array(
 262                      'description' => __( 'The number of blocks published by the same author.' ),
 263                      'type'        => 'integer',
 264                      'context'     => array( 'view' ),
 265                  ),
 266                  'author'              => array(
 267                      'description' => __( 'The WordPress.org username of the block author.' ),
 268                      'type'        => 'string',
 269                      'context'     => array( 'view' ),
 270                  ),
 271                  'icon'                => array(
 272                      'description' => __( 'The block icon.' ),
 273                      'type'        => 'string',
 274                      'format'      => 'uri',
 275                      'context'     => array( 'view' ),
 276                  ),
 277                  'last_updated'        => array(
 278                      'description' => __( 'The date when the block was last updated, in fuzzy human readable format.' ),
 279                      'type'        => 'string',
 280                      'format'      => 'date-time',
 281                      'context'     => array( 'view' ),
 282                  ),
 283                  'humanized_updated'   => array(
 284                      'description' => __( 'The date when the block was last updated, in fuzzy human readable format.' ),
 285                      'type'        => 'string',
 286                      'context'     => array( 'view' ),
 287                  ),
 288              ),
 289          );
 290  
 291          return $this->add_additional_fields_schema( $this->schema );
 292      }
 293  
 294      /**
 295       * Retrieves the search params for the blocks collection.
 296       *
 297       * @since 5.5.0
 298       *
 299       * @return array Collection parameters.
 300       */
 301  	public function get_collection_params() {
 302          $query_params = parent::get_collection_params();
 303  
 304          $query_params['context']['default'] = 'view';
 305  
 306          $query_params['term'] = array(
 307              'description' => __( 'Limit result set to blocks matching the search term.' ),
 308              'type'        => 'string',
 309              'required'    => true,
 310              'minLength'   => 1,
 311          );
 312  
 313          unset( $query_params['search'] );
 314  
 315          /**
 316           * Filters REST API collection parameters for the block directory controller.
 317           *
 318           * @since 5.5.0
 319           *
 320           * @param array $query_params JSON Schema-formatted collection parameters.
 321           */
 322          return apply_filters( 'rest_block_directory_collection_params', $query_params );
 323      }
 324  }