Auto-activate sites on Easy Digital Downloads Software Licensing

eddsl-auto-activate.php

<?php

add_filter( 'edd_sl_is_site_active', 'your_namespace_is_site_active_auto_activate_site', 10, 3 );

/**
 * Allow active licenses to get updates if they're not at the limit, no matter what.
 *
 * @param false $is_active
 * @param int $license_id
 * @param string $passed_site_url
 *
 * @return bool
 */
function your_namespace_is_site_active_auto_activate_site( $is_active = false, $license_id = 0, $passed_site_url = '' ) {

  if( true === $is_active ) {
    return true; // Already passed the check
  }

  if ( ! wp_http_validate_url( $passed_site_url ) ) {
    return $is_active; // Can't add invalid URLs to the license anyway, return early
  }

  $license = edd_software_licensing()->get_license( $license_id );

  // Only allow active licenses to get updates if they're not at the limit
  if( ! $license || ! $license->is_at_limit() || 'active' !== $license->status ) {
    return $is_active;
  }

  // And then add the site
  $license->add_site( $passed_site_url );

  // And enter this activation in the log
  edd_software_licensing()->log_license_activation( $license->ID, $_SERVER );

  return true;
}