<?php

/**
 * @file
 * Plugin definition for the Drupal Private Key key provider.
 */

$plugin = array(
  'title' => t('Drupal encrypt_drupal_variable_key variable'),
  'description' => t("Use a variable called encrypt_drupal_variable_key, preferably set in your settings.php $conf array."),
  'key callback' => 'encrypt_get_encrypt_drupal_variable_key',
  'settings form' => NULL,
);

/**
 * Callback method to return Drupal's private key.
 */
function encrypt_get_encrypt_drupal_variable_key() {
  $key = variable_get('encrypt_drupal_variable_key', NULL);
  if (empty($key)) {
    watchdog('encrypt', "You need to set the $conf['encrypt_drupal_variable_key'] in your settings.php.", array(), WATCHDOG_EMERGENCY);
    drupal_set_message("Encryption settings are insufficient. See your site log for more information.")
  }
  return '';
}