Automattic / jetpack

class WPCOM_JSON_API_Get_Comment_Endpoint extends WPCOM_JSON_API_Comment_Endpoint {

	// /sites/%s/comments/%d -> $blog_id, $comment_id

	function callback( $path = '', $blog_id = 0, $comment_id = 0 ) {

		$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;

		}

		$args = $this->query_args();

		$return = $this->get_comment( $comment_id, $args['context'] );

		if ( !$return || is_wp_error( $return ) ) {

			return $return;

		}

		/** This action is documented in json-endpoints/class.wpcom-json-api-site-settings-endpoint.php */

		do_action( 'wpcom_json_api_objects', 'comments' );

		return $return;

	}

}

class WPCOM_JSON_API_Get_Sharing_Button_Endpoint extends WPCOM_JSON_API_Sharing_Button_Endpoint {

	// GET /sites/%s/sharing-buttons/%s -> $blog_id, $button_id

	public function callback( $path = '', $blog_id = 0, $button_id = 0 ) {

		// Validate request

		$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;

		}

		$continue = $this->setup();

		if ( is_wp_error( $continue ) ) {

			return $continue;

		}

		// Search existing services for button

		$all_buttons = $this->sharing_service->get_all_services_blog();

		if ( ! array_key_exists( $button_id, $all_buttons ) ) {

			return new WP_Error( 'not_found', 'The specified sharing button was not found', 404 );

		} else {

			return $this->format_sharing_button( $all_buttons[ $button_id ] );

		}

	}

}