cognito-forms-oembed/cognito-forms-oembed.php

<?php
/**
 * Cognito Forms oEmbed
 *
 * @package           CognitoFormsOEmbed
 * @author            Cognito Apps
 * @copyright         2021 Cognito LLC
 * @license           GPL-3.0-or-later
 *
 * @wordpress-plugin
 * Plugin Name:       Cognito Forms oEmbed
 * Plugin URI:        http://wordpress.org/plugins/cognito-forms-oembed/
 * Description:       Cognito Forms is a free online form builder that integrates seamlessly with WordPress. Create contact forms, registrations forms, surveys, and more!
 * Version:           1.0.0
 * Requires at least: 5.2
 * Requires PHP:      7.2
 * Author:            Cognito Apps
 * Author URI:        https://www.cognitoforms.com
 * Text Domain:       cognito-forms-oembed
 * License:           GPL v3 or later
 * License URI:       http://www.gnu.org/licenses/gpl-3.0.txt
 */

/**
 * Cognito Forms oEmbed WordPress Plugin.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

if ( !class_exists('CognitoFormsOEmbed') ) {
  class CognitoFormsOEmbed {
    public function __construct() {
      wp_oembed_add_provider( '#https?://(www\.)?cognitoforms\.com/.*#i', 'https://www.cognitoforms.com/f/oembed/', true );
    }
  }
  new CognitoFormsOEmbed;
}