WIP: Install a block from inserter

docs/manifest-devhub.json

@@ -1085,6 +1085,12 @@
 		"markdown_source": "../packages/blob/README.md",
 		"parent": "packages"
 	},
+	{
+		"title": "@wordpress/block-directory",
+		"slug": "packages-block-directory",
+		"markdown_source": "../packages/block-directory/README.md",
+		"parent": "packages"
+	},
 	{
 		"title": "@wordpress/block-editor",
 		"slug": "packages-block-editor",

lib/class-wp-rest-block-directory-controller.php

@@ -0,0 +1,311 @@
+<?php
+/**
+ * Start: Include for phase 2
+ * Block Directory REST API: WP_REST_Blocks_Controller class
+ *
+ * @package gutenberg
+ * @since 5.7.0
+ */
+
+/**
+ * Controller which provides REST endpoint for the blocks.
+ *
+ * @since 5.2.0
+ *
+ * @see WP_REST_Controller
+ */
+class WP_REST_Block_Directory_Controller extends WP_REST_Controller {
+
+	/**
+	 * Constructs the controller.
+	 *
+	 * @access public
+	 */
+	public function __construct() {
+		$this->namespace = '__experimental';
+		$this->rest_base = 'block-directory';
+	}
+
+	/**
+	 * Registers the necessary REST API routes.
+	 *
+	 * @access public
+	 */
+	public function register_routes() {
+		register_rest_route(
+			$this->namespace,
+			'/' . $this->rest_base . '/search',
+			array(
+				array(
+					'methods'             => WP_REST_Server::READABLE,
+					'callback'            => array( $this, 'get_items' ),
+					'permission_callback' => array( $this, 'get_items_permissions_check' ),
+				),
+				'schema' => array( $this, 'get_item_schema' ),
+			)
+		);
+		register_rest_route(
+			$this->namespace,
+			'/' . $this->rest_base . '/install',
+			array(
+				array(
+					'methods'             => WP_REST_Server::CREATABLE,
+					'callback'            => array( $this, 'install_block' ),
+					'permission_callback' => array( $this, 'get_items_permissions_check' ),
+				),
+				'schema' => array( $this, 'get_item_schema' ),
+			)
+		);
+		register_rest_route(
+			$this->namespace,
+			'/' . $this->rest_base . '/uninstall',
+			array(
+				array(
+					'methods'             => WP_REST_Server::DELETABLE,
+					'callback'            => array( $this, 'uninstall_block' ),
+					'permission_callback' => array( $this, 'get_items_permissions_check' ),
+				),
+				'schema' => array( $this, 'get_item_schema' ),
+			)
+		);
+	}
+
+	/**
+	 * Checks whether a given request has permission to install and activate plugins.
+	 *
+	 * @since 5.7.0
+	 *
+	 * @param WP_REST_Request $request Full details about the request.
+	 * @return WP_Error|bool True if the request has permission, WP_Error object otherwise.
+	 */
+	public function get_items_permissions_check( $request ) {
+		if ( ! current_user_can( 'install_plugins' ) || ! current_user_can( 'activate_plugins' ) ) {
+			return new WP_Error(
+				'rest_user_cannot_view',
+				__( 'Sorry, you are not allowed to install blocks.', 'gutenberg' )
+			);
+		}
+
+		return true;
+	}
+
+	/**
+	 * Installs and activates a plugin
+	 *
+	 * @since 5.7.0
+	 *
+	 * @param WP_REST_Request $request Full details about the request.
+	 * @return WP_Error|WP_REST_Response Response object on success, or WP_Error object on failure.
+	 */
+	public function install_block( $request ) {
+
+		include_once( ABSPATH . 'wp-admin/includes/file.php' );
+		include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
+		include_once( ABSPATH . 'wp-admin/includes/class-wp-upgrader.php' );
+		include_once( ABSPATH . 'wp-admin/includes/plugin-install.php' );
+
+		$api = plugins_api(
+			'plugin_information',
+			array(
+				'slug'   => $request->get_param( 'slug' ),
+				'fields' => array(
+					'sections' => false,
+				),
+			)
+		);
+
+		if ( is_wp_error( $api ) ) {
+			return WP_Error( $api->get_error_code(), $api->get_error_message() );
+		}
+
+		$skin     = new WP_Ajax_Upgrader_Skin();
+		$upgrader = new Plugin_Upgrader( $skin );
+
+		$filesystem_method = get_filesystem_method();
+
+		if ( 'direct' !== $filesystem_method ) {
+			return WP_Error( null, 'Only direct FS_METHOD is supported.' );
+		}
+
+		$result = $upgrader->install( $api->download_link );
+
+		if ( is_wp_error( $result ) ) {
+			return WP_Error( $result->get_error_code(), $result->get_error_message() );
+		}
+
+		if ( is_wp_error( $skin->result ) ) {
+			return WP_Error( $skin->$result->get_error_code(), $skin->$result->get_error_message() );
+		}
+
+		if ( $skin->get_errors()->has_errors() ) {
+			return WP_Error( $skin->$result->get_error_code(), $skin->$result->get_error_messages() );
+		}
+
+		if ( is_null( $result ) ) {
+			global $wp_filesystem;
+			// Pass through the error from WP_Filesystem if one was raised.
+			if ( $wp_filesystem instanceof WP_Filesystem_Base && is_wp_error( $wp_filesystem->errors ) && $wp_filesystem->errors->has_errors() ) {
+				return WP_Error( 'unable_to_connect_to_filesystem', esc_html( $wp_filesystem->errors->get_error_message() ) );
+			}
+			return WP_Error( 'unable_to_connect_to_filesystem', __( 'Unable to connect to the filesystem. Please confirm your credentials.', 'gutenberg' ) );
+		}
+
+		$install_status = install_plugin_install_status( $api );
+
+		$activate_result = activate_plugin( $install_status['file'] );
+
+		if ( is_wp_error( $activate_result ) ) {
+			return WP_Error( $activate_result->get_error_code(), $activate_result->get_error_message() );
+		}
+
+		return rest_ensure_response( true );
+	}
+
+	/**
+	 * Deactivates and deletes a plugin
+	 *
+	 * @since 5.7.0
+	 *
+	 * @param WP_REST_Request $request Full details about the request.
+	 * @return WP_Error|WP_REST_Response Response object on success, or WP_Error object on failure.
+	 */
+	public function uninstall_block( $request ) {
+
+		include_once( ABSPATH . 'wp-admin/includes/file.php' );
+		include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
+		include_once( ABSPATH . 'wp-admin/includes/class-wp-upgrader.php' );
+		include_once( ABSPATH . 'wp-admin/includes/plugin-install.php' );
+
+		$api = plugins_api(
+			'plugin_information',
+			array(
+				'slug'   => $request->get_param( 'slug' ),
+				'fields' => array(
+					'sections' => false,
+				),
+			)
+		);
+
+		if ( is_wp_error( $api ) ) {
+			return WP_Error( $api->get_error_code(), $api->get_error_message() );
+		}
+
+		$install_status = install_plugin_install_status( $api );
+
+		$deactivate_result = deactivate_plugins( $install_status['file'] );
+
+		if ( is_wp_error( $deactivate_result ) ) {
+			return WP_Error( $deactivate_result->get_error_code(), $deactivate_result->get_error_message() );
+		}
+
+		$delete_result = delete_plugins( array( $install_status['file'] ) );
+
+		if ( is_wp_error( $delete_result ) ) {
+			return WP_Error( $delete_result->get_error_code(), $delete_result->get_error_message() );
+		}
+
+		return rest_ensure_response( true );
+	}
+
+	/**
+	 * Search and retrieve blocks metadata
+	 *
+	 * @since 5.7.0
+	 *
+	 * @param WP_REST_Request $request Full details about the request.
+	 * @return WP_Error|WP_REST_Response Response object on success, or WP_Error object on failure.
+	 */
+	public function get_items( $request ) {
+
+		$search_string = $request->get_param( 'term' );
+
+		if ( empty( $search_string ) ) {
+			return rest_ensure_response( array() );
+		}
+
+		include( ABSPATH . WPINC . '/version.php' );
+
+		$url      = 'http://api.wordpress.org/plugins/info/1.2/';
+		$url      = add_query_arg(
+			array(
+				'action'              => 'query_plugins',
+				'request[block]'      => $search_string,
+				'request[wp_version]' => '5.3',
+				'request[per_page]'   => '3',
+			),
+			$url
+		);
+		$http_url = $url;
+		$ssl      = wp_http_supports( array( 'ssl' ) );
+		if ( $ssl ) {
+			$url = set_url_scheme( $url, 'https' );
+		}
+		$http_args = array(
+			'timeout'    => 15,
+			'user-agent' => 'WordPress/' . $wp_version . '; ' . home_url( '/' ),
+		);
+
+		$request  = wp_remote_get( $url, $http_args );
+		$response = json_decode( wp_remote_retrieve_body( $request ), true );
+
+		if ( ! function_exists( 'get_plugins' ) ) {
+			require_once ABSPATH . 'wp-admin/includes/plugin.php';
+		}
+
+		$result = array();
+
+		foreach ( $response['plugins'] as $plugin ) {
+			$installed_plugins = get_plugins( '/' . $plugin['slug'] );
+
+			// Only show uninstalled blocks.
+			if ( empty( $installed_plugins ) ) {
+				$result[] = parse_block_metadata( $plugin );
+			}
+		}
+
+		return rest_ensure_response( $result );
+	}
+}
+
+	/**
+	 * Parse block metadata for a block
+	 *
+	 * @since 5.7.0
+	 *
+	 * @param WP_Object $plugin The plugin metadata.
+	 * @return WP_Error|WP_REST_Response Response object on success, or WP_Error object on failure.
+	 */
+function parse_block_metadata( $plugin ) {
+	$block = new stdClass();
+
+	// There might be multiple blocks in a plugin. Only the first block is mapped.
+	$block_data   = reset( $plugin['blocks'] );
+	$block->name  = $block_data['name'];
+	$block->title = $block_data['title'];
+
+	// Plugin's description, not description in block.json.
+	$block->description = wp_trim_words( wp_strip_all_tags( $plugin['description'] ), 30, '...' );
+
+	$block->id                  = $plugin['slug'];
+	$block->rating              = $plugin['rating'];
+	$block->rating_count        = $plugin['num_ratings'];
+	$block->active_installs     = $plugin['active_installs'];
+	$block->author_block_rating = $plugin['author_block_rating'];
+	$block->author_block_count  = $plugin['author_block_count'];
+
+	// Plugin's author, not author in block.json.
+	$block->author = wp_strip_all_tags( $plugin['author'] );
+
+	// Plugin's icons or icon in block.json.
+	$block->icon = isset( $plugin['icons']['1x'] ) ? $plugin['icons']['1x'] : 'block-default';
+
+	$block->assets = array();
+
+	foreach ( $plugin['block_assets'] as $asset ) {
+		$block->assets[] = 'https://plugins.svn.wordpress.org/' . $plugin['slug'] . $asset;
+	}
+
+	$block->humanized_updated = human_time_diff( strtotime( $plugin['last_updated'] ), current_time( 'timestamp' ) ) . __( ' ago', 'gutenberg' );
+
+	return $block;
+}

lib/client-assets.php

@@ -290,7 +290,7 @@ function gutenberg_register_scripts_and_styles() {
 	gutenberg_override_style(
 		'wp-editor',
 		gutenberg_url( 'build/editor/style.css' ),
-		array( 'wp-components', 'wp-block-editor', 'wp-nux' ),
+		array( 'wp-components', 'wp-block-editor', 'wp-nux', 'wp-block-directory' ),
 		filemtime( gutenberg_dir_path() . 'build/editor/style.css' )
 	);
 	wp_style_add_data( 'wp-editor', 'rtl', 'replace' );
@@ -373,6 +373,14 @@ function gutenberg_register_scripts_and_styles() {
 	);
 	wp_style_add_data( 'wp-edit-widgets', 'rtl', 'replace' );
 
+	gutenberg_override_style(
+		'wp-block-directory',
+		gutenberg_url( 'build/block-directory/style.css' ),
+		array( 'wp-components' ),
+		filemtime( gutenberg_dir_path() . 'build/block-directory/style.css' )
+	);
+	wp_style_add_data( 'wp-block-directory', 'rtl', 'replace' );
+
 	if ( defined( 'GUTENBERG_LIVE_RELOAD' ) && GUTENBERG_LIVE_RELOAD ) {
 		$live_reload_url = ( GUTENBERG_LIVE_RELOAD === true ) ? 'http://localhost:35729/livereload.js' : GUTENBERG_LIVE_RELOAD;
 

lib/experiments-page.php

@@ -22,7 +22,7 @@ class="wrap"
 	<?php settings_errors(); ?>
 	<form method="post" action="options.php">
 		<?php settings_fields( 'gutenberg-experiments' ); ?>
-		<?php do_settings_sections( 'gutenberg-experiments' ); ?>           
+		<?php do_settings_sections( 'gutenberg-experiments' ); ?>
 		<?php submit_button(); ?>
 	</form>
 	</div>
@@ -64,6 +64,17 @@ function gutenberg_initialize_experiments_settings() {
 			'id'    => 'gutenberg-menu-block',
 		)
 	);
+	add_settings_field(
+		'gutenberg-block-directory',
+		__( 'Block Directory', 'gutenberg' ),
+		'gutenberg_display_experiment_field',
+		'gutenberg-experiments',
+		'gutenberg_experiments_section',
+		array(
+			'label' => __( 'Enable Block Directory search', 'gutenberg' ),
+			'id'    => 'gutenberg-block-directory',
+		)
+	);
 	register_setting(
 		'gutenberg-experiments',
 		'gutenberg-experiments'
@@ -114,6 +125,8 @@ function gutenberg_experiments_editor_settings( $settings ) {
 	$experiments_settings = array(
 		'__experimentalEnableLegacyWidgetBlock' => $experiments_exist ? array_key_exists( 'gutenberg-widget-experiments', get_option( 'gutenberg-experiments' ) ) : false,
 		'__experimentalEnableMenuBlock'         => $experiments_exist ? array_key_exists( 'gutenberg-menu-block', get_option( 'gutenberg-experiments' ) ) : false,
+		'__experimentalBlockDirectory'          => $experiments_exist ? array_key_exists( 'gutenberg-block-directory', get_option( 'gutenberg-experiments' ) ) : false,
+
 	);
 	return array_merge( $settings, $experiments_settings );
 }

lib/load.php

@@ -25,6 +25,11 @@
 	/**
 	* End: Include for phase 2
 	*/
+
+	if ( ! class_exists( 'WP_REST_Block_Directory_Controller' ) ) {
+		require dirname( __FILE__ ) . '/class-wp-rest-block-directory-controller.php';
+	}
+
 	require dirname( __FILE__ ) . '/rest-api.php';
 }