function simplenews_subscriber_load_by_hash in Simplenews 7.2

Same name and namespace in other branches

1. 7 simplenews.module \simplenews_subscriber_load_by_hash()

Load a simplenews subscriber using the hash.

Parameters

$hash: A hash generated by simplenews_generate_hash().

Return value

SimplenewsSubscriber Simplenews subscriber entity, FALSE if the hash is invalid or the corresponding subscriber does not exist.

1 call to simplenews_subscriber_load_by_hash()

simplenews_old_confirm_subscription in includes/simplenews.subscription.inc

Backwards compatibility for old conformation links.

File

./simplenews.module, line 1781

Simplenews node handling, sent email, newsletter block and general hooks

Code

function simplenews_subscriber_load_by_hash($hash) {

  // Attempt to detect invalid format.
  if (!preg_match('/.{10}[0-9]+t[0-9]+/', $hash)) {
    return FALSE;
  }
  $md5 = drupal_substr($hash, 0, 10);
  list($snid, $newsletter_id) = explode('t', drupal_substr($hash, 10));
  $subscriber = simplenews_subscriber_load($snid);
  if (!$subscriber) {
    return FALSE;
  }

  // Check the hash if the comparison fails, return a not found error.
  if ($md5 != drupal_substr(md5($subscriber->mail . simplenews_private_key()), 0, 10)) {
    return FALSE;
  }
  return $subscriber;
}