function _encryptfapi_decrypt_element in Encrypt Form API 7.2

Helper function to recursively process an element for decryption.

Parameters

$element: The element to process.

1 call to _encryptfapi_decrypt_element()

encryptfapi_form_alter in ./encryptfapi.module

Implements hook_form_alter().

File

./encryptfapi.module, line 129

Main module file for Encrypt Form API.

Code

function _encryptfapi_decrypt_element(&$element) {
  $element_types =& drupal_static(__FUNCTION__);
  if (!isset($element_types)) {
    $element_types = _encryptfapi_supported_element_types();
  }
  foreach (element_children($element) as $key) {
    $child =& $element[$key];
    if (is_array($child)) {
      _encryptfapi_decrypt_element($child);
    }

    // If the element is not marked for encryption or if it's not a type
    // supported by this module, skip it.
    if (!isset($child['#encrypt']) || $child['#encrypt'] != TRUE || !in_array($child['#type'], $element_types)) {
      continue;
    }

    // If the value is empty, skip it.
    if (empty($child['#default_value'])) {

      // If the field accepts multiple values, make sure that the value is
      // an array.
      if ($child['#type'] == 'checkboxes') {
        $child['#default_value'] = array();
      }
      continue;
    }

    // If the element has already been decrypted, skip it.
    if (isset($child['#decrypted']) && $child['#decrypted'] == TRUE) {
      continue;
    }

    // If the value does not appear to be encrypted, skip it.
    $unserialized = @unserialize($child['#default_value']);
    if ($unserialized === FALSE || !isset($unserialized['method']) || !isset($unserialized['key_provider'])) {
      continue;
    }
    $child['#default_value'] = decrypt($child['#default_value']);

    // If the decrypted text is serialized, unserialize it.
    $unserialized = @unserialize($child['#default_value']);
    if ($unserialized !== FALSE) {
      $child['#default_value'] = $unserialized;
    }
    $child['#decrypted'] = TRUE;
  }
}