aes.install in AES encryption 6

File

aes.install

<?php

function aes_requirements($phase) {
  $aes_implementations = aes_get_available_aes_implementations();
  if ($aes_implementations['mcrypt'] === false && $aes_implementations['phpseclib'] === false) {
    $requirement_severity = REQUIREMENT_ERROR;
  }
  else {
    $requirement_severity = REQUIREMENT_OK;
  }
  $requirements = array(
    array(
      'title' => 'AES encryption implementation',
      'description' => 'The AES encryption module requires at least one of two things to function: Either the PHP Mcrypt extension has to be installed on the web server. Or the PHP Secure Communications Library (phpseclib) needs to be installed in the AES directory. Check the README.txt for more information.',
      'severity' => $requirement_severity,
    ),
  );
  return $requirements;
}
function aes_get_available_aes_implementations() {
  $phpsec_include_path = dirname(__FILE__) . "/phpseclib";
  set_include_path(get_include_path() . PATH_SEPARATOR . $phpsec_include_path);
  $phpsec_available = true;
  if (file_exists($phpsec_include_path . '/Crypt/AES.php') === false) {
    $phpsec_available = false;
  }
  else {
    if (is_readable($phpsec_include_path . '/Crypt/AES.php') === false) {
      $phpsec_available = false;
    }
  }
  if (extension_loaded("mcrypt")) {
    $mcrypt_available = true;
  }
  else {
    $mcrypt_available = false;
  }
  return array(
    'mcrypt' => $mcrypt_available,
    'phpseclib' => $phpsec_available,
  );
}
function aes_install() {
  drupal_install_schema("aes");
  variable_set("aes_key_storage_method", "Database");
  variable_set("aes_cipher", "rijndael-128");
  variable_set("aes_convert", "true");
  variable_set("aes_viewing_method", "collapsible");
  $aes_implementations = aes_get_available_aes_implementations();
  if ($aes_implementations['mcrypt']) {
    variable_set("aes_implementation", "mcrypt");
    $install_msg = t("AES installed using the Mcrypt implementation.");
  }
  else {
    if ($aes_implementations['phpseclib']) {
      variable_set("aes_implementation", "phpseclib");
      $install_msg = t("AES installed using the phpseclib 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");
      $install_msg = t("AES installed without any implementation!");
    }
  }
  drupal_set_message($install_msg);
}
function aes_update_6100(&$sandbox = NULL) {
  $aes_implementations = aes_get_available_aes_implementations();
  if ($aes_implementations['mcrypt']) {
    variable_set("aes_implementation", "mcrypt");
  }
  else {
    if ($aes_implementations['phpseclib']) {
      variable_set("aes_implementation", "phpseclib");
    }
    else {
      variable_set("aes_implementation", "missing");
    }
  }
  return array();
}
function aes_schema() {
  $schema['aes_passwords'] = array(
    'fields' => array(
      'uid' => array(
        'type' => 'int',
        'unsigned' => true,
        'not null' => true,
        'default' => 0,
      ),
      'pass' => array(
        'type' => 'varchar',
        'length' => 128,
        'not null' => true,
        'default' => '',
      ),
    ),
    'primary key' => array(
      'uid',
    ),
  );
  return $schema;
}
function aes_uninstall() {

  //delete keyfile
  if (variable_get("aes_key_storage_method", "") == "File") {
    unlink(variable_get("aes_key_path", ""));
  }
  drupal_uninstall_schema("aes");

  //delete variables
  variable_del("aes_key");
  variable_del("aes_convert");
  variable_del("aes_key_storage_method");
  variable_del("aes_key_path");
  variable_del("aes_key");
  variable_del("aes_encryption_iv");
  variable_del("aes_cipher");
  variable_del("aes_viewing_method");
  variable_del("aes_implementation");
  drupal_set_message(t("AES uninstalled."));
}

Functions

Name	Description
aes_get_available_aes_implementations
aes_install
aes_requirements
aes_schema
aes_uninstall
aes_update_6100