/**
* This method return a singleton instance of __RoleManager instance
*
* @return __RoleManager a reference to the current __RoleManager instance
*/
public static function &getInstance()
{
if (self::$_instance == null) {
// Use "Lazy initialization"
self::$_instance = new __RoleManager();
}
return self::$_instance;
}
public function &loadAnonymousUser()
{
$return_value = new __User();
//If there is not need to authenticate the user, will set the admin role:
if (__ContextManager::getInstance()->getContext('LION_ADMIN_AREA')->getPropertyContent('LION_ADMIN_AUTH_REQUIRED') == false) {
$admin_role = __RoleManager::getInstance()->getRole('ADMIN');
$return_value->addRole($admin_role);
}
$return_value->setCredentials(new __AnonymousCredentials());
return $return_value;
}
/**
* Get an array of roles corresponding to a given user
*
* @return array
*/
public function _loadRoles($dbh, $user_id)
{
$return_value = array();
$statement = $dbh->prepare("SELECT * \n FROM roles \n WHERE user_id = ?");
$statement->execute(array($user_id));
$statement->setFetchMode(PDO::FETCH_ASSOC);
$roles_info = $stmt->fetchAll();
foreach ($roles_info as $role_info) {
$role = __RoleManager::getInstance()->getRole($role_info['role']);
$return_value[] = $role;
}
return $return_value;
}
/**
* Get the user identity and returns a user corresponding
* to the given identity.
*
* Note that the returned user contains his
* credentials in order to be used by the security
* framework
*
*/
public function &loadUser(__IUserIdentity $user_identity)
{
$user = null;
if ($user_identity instanceof __UsernameIdentity) {
//get the login string from the user identity:
$login = $user_identity->getUsername();
//check if the login correspond to any of our
//valid logins:
if (key_exists($login, $this->_user_and_passwords)) {
//create a user instance and set the credentials:
$user = new __User();
$credentials = new __PasswordCredentials();
$credentials->setPassword($this->_user_and_passwords[$login]);
$user->setCredentials($credentials);
//get the role identified as REGISTERED_USER:
$role = __RoleManager::getInstance()->getRole('REGISTERED_USER');
//assign the role to the user:
$user->addRole($role);
}
}
return $user;
}
