function _webform_submission_spam_check in Webform 7.4

Same name and namespace in other branches

1. 5.2 webform_submissions.inc \_webform_submission_spam_check()
2. 5 webform.inc \_webform_submission_spam_check()
3. 6.3 includes/webform.submissions.inc \_webform_submission_spam_check()
4. 6.2 webform_submissions.inc \_webform_submission_spam_check()
5. 7.3 includes/webform.submissions.inc \_webform_submission_spam_check()

Verify that an email is not attempting to send any spam.

1 call to _webform_submission_spam_check()

_webform_submission_prepare_mail in includes/webform.submissions.inc

Prepare a submission email for use by webform_submission_send_mail()

File

includes/webform.submissions.inc, line 1009

Submission handling functions.

Code

function _webform_submission_spam_check($to, $subject, $from, $headers = array()) {
  $headers = implode('\\n', (array) $headers);

  // Check if they are attempting to spam using a bcc or content type hack.
  if (preg_match('/(b?cc\\s?:)|(content\\-type:)/i', $to . "\n" . $subject . "\n" . $from . "\n" . $headers)) {

    // Possible spam attempt.
    return TRUE;
  }

  // Not spam.
  return FALSE;
}