wordpress/php-fpm/wordpress_files/plugins/jetpack/json-endpoints/class.wpcom-json-api-add-widget-endpoint.php

<?php
/**
 * Activate a widget on a site.
 *
 * https://public-api.wordpress.com/rest/v1.1/sites/$site/widgets/new
 */

new WPCOM_JSON_API_Add_Widgets_Endpoint( array (
	'description'      => 'Activate a widget on a site.',
	'group'            => 'sites',
	'stat'             => 'widgets:new',
	'method'           => 'POST',
	'min_version'      => '1.1',
	'path'             => '/sites/%s/widgets/new',
	'path_labels'      => array(
		'$site' => '(string) Site ID or domain.'
	),
	'request_format' => array(
		'id_base' => '(string) The base ID of the widget.',
		'sidebar' => '(string) Optional. The ID of the sidebar where this widget will be active. If empty, the widget will be added in the first sidebar available.',
		'position' => '(int) Optional. The position of the widget in the sidebar.',
		'settings' => '(object) Optional. The settings for the new widget.',
	),
	'response_format'  => array(
		'id' => '(string) The actual ID of the widget.',
		'sidebar' => '(string) The ID of the sidebar where this widget will be active.',
		'position' => '(int) The final position of the widget in the sidebar.',
		'settings' => '(array) The settings for the new widget.',
	),
	'example_request'  => 'https://public-api.wordpress.com/rest/v1.1/sites/12345678/widgets/new',
	'example_request_data' => array(
		'headers' => array(
			'authorization' => 'Bearer YOUR_API_TOKEN'
		),
		'body' => array(
			'id_base' => 'text',
			'sidebar' => 'sidebar-2',
			'position' => '0',
			'settings' => array( 'title' => 'hello world' ),
		)
	),
	'example_response' => '
	{
		"id": "text-3",
		"id_base": "text",
		"settings": {
			"title": "hello world"
		},
		"sidebar": "sidebar-2",
		"position": 0
	}'
) );


class WPCOM_JSON_API_Add_Widgets_Endpoint extends WPCOM_JSON_API_Endpoint {
	/**
	 * API callback.
	 *
	 * @param string $path
	 * @param int    $blog_id
	 * @uses jetpack_require_lib
	 * @uses Jetpack_Widgets
	 *
	 * @return array|WP_Error
	 */
	function callback( $path = '', $blog_id = 0 ) {
		// Switch to the given blog.
		$blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) );
		if ( is_wp_error( $blog_id ) ) {
			return $blog_id;
		}

		if ( ! current_user_can( 'edit_theme_options' ) ) {
			return new WP_Error( 'unauthorized', 'User is not authorized to access widgets', 403 );
		}

		jetpack_require_lib( 'widgets' );
		$args = $this->input( false, false ); // Don't filter the input
		if ( empty( $args ) || ! is_array( $args ) ) {
			return new WP_Error( 'no_data', 'No data was provided.', 400 );
		}
		if ( isset( $args['widgets'] ) || ! empty( $args['widgets'] ) ) {
			$widgets = Jetpack_Widgets::activate_widgets( $args['widgets'] );
			if ( is_wp_error( $widgets ) ) {
				return $widgets;
			}
			return array( 'widgets' => $widgets );
		}
		if ( ! isset( $args['id_base'] ) ) {
			return new WP_Error( 'missing_data', 'The data you provided was not accurate.', 400 );
		}

		if ( empty( $args['sidebar'] ) ) {
			$active_sidebars = Jetpack_Widgets::get_active_sidebars();
			reset( $active_sidebars );
			$args['sidebar'] = key( $active_sidebars );
		}

		return Jetpack_Widgets::activate_widget( $args['id_base'], $args['sidebar'], $args['position'], $args['settings'] );
	}

}