function aes_enable in AES encryption 7

Same name and namespace in other branches

1. 5 aes.module \aes_enable()
2. 6 aes.module \aes_enable()

Implements hook_enable().

File

./aes.install, line 63

Install/uninstall related functions.

Code

function aes_enable() {
  if (variable_get("aes_implementation", FALSE)) {

    // Implementation method is already set. We assume everything is already configured.
    return;
  }
  $aes_implementations = aes_get_available_aes_implementations();
  if ($aes_implementations['phpseclib']) {
    variable_set("aes_implementation", "phpseclib");
    $install_msg = t("AES enabled using the phpseclib implementation.");
  }
  else {
    if ($aes_implementations['mcrypt']) {
      variable_set("aes_implementation", "mcrypt");
      $install_msg = t("AES enabled using the MCrypt implementation.");
    }
    else {

      // This case shouldn't actually be possible since hook_requirements should stop the installation if there's no implementation.
      variable_set("aes_implementation", "missing");
      $install_msg = t("AES enabled but no AES implementation available. Please enable implementation before use!");
    }
  }
  drupal_set_message($install_msg);
  $iv = base64_decode(variable_get("aes_encryption_iv", FALSE));
  if (empty($iv)) {
    aes_make_iv(TRUE);
  }

  // This will create a new key if one doesn't exist.
  aes_get_key();
}