function _uc_recurring_hosted_paypal_ipn_validate in UC Recurring Payments and Subscriptions 7.2

Same name and namespace in other branches

1. 6.2 modules/uc_recurring_hosted/uc_recurring_hosted.paypal_ipn.inc \_uc_recurring_hosted_paypal_ipn_validate()

Validate Paypal IPN.

1 call to _uc_recurring_hosted_paypal_ipn_validate()

uc_recurring_hosted_paypal_ipn in modules/uc_recurring_hosted/uc_recurring_hosted.paypal_ipn.inc

Handle IPN callbacks for PayPal recurring payments

File

modules/uc_recurring_hosted/uc_recurring_hosted.paypal_ipn.inc, line 238

Handle paypal IPN callbacks for recurring payments

Code

function _uc_recurring_hosted_paypal_ipn_validate($ipn) {
  if (_uc_recurring_hosted_paypal_ipn_is_duplicate($ipn)) {
    return FALSE;
  }

  // @todo: any reason we can't use http_build_query() here?
  $req = '';
  foreach ($_POST as $key => $value) {
    $value = urlencode(stripslashes($value));
    $req .= $key . '=' . $value . '&';
  }
  $req .= 'cmd=_notify-validate';
  if (variable_get('uc_paypal_wpp_server', '') == 'https://api-3t.paypal.com/nvp') {
    $host = 'https://www.paypal.com/cgi-bin/webscr';
  }
  else {
    $host = variable_get('uc_paypal_wps_server', 'https://www.sandbox.paypal.com/cgi-bin/webscr');
  }
  $response = drupal_http_request($host, array(
    'headers' => array(),
    'method' => 'POST',
    'data' => $req,
  ));

  // @todo: Change this to property_exists when we have a PHP requirement >= 5.1.
  if (array_key_exists('error', $response)) {
    watchdog('uc_recurring_hosted', 'IPN failed with HTTP error @error, code @code.', array(
      '@error' => $response->error,
      '@code' => $response->code,
    ), WATCHDOG_ERROR);
    return FALSE;
  }
  if (strcmp($response->data, 'VERIFIED') == 0) {
    watchdog('uc_recurring_hosted', 'PayPal Recurring IPN Transaction Verified.');
    return TRUE;
  }
  elseif (strcmp($response->data, 'INVALID') == 0) {
    watchdog('uc_recurring_hosted', 'IPN transaction failed verification.', array(), WATCHDOG_ERROR);
    uc_order_comment_save($ipn->order_id, 0, t('An IPN transaction failed verification for this order.'), 'admin');
  }
  return FALSE;
}