/**
      * Авторизация пользователя.
      * При успешной авторизации в сессии создаётся хранилище основной информации.
      * Дополнительно задаём сессию для контроля IP адреса.
      * Логируем авторизацию.
      *
      * При неудачной авторизации ищем логин, под которым пытались войти.
      * Если таковой есть, логируем неудачную операцию.
      *
      * @access public
      * @return void
      */
     public function loginAction()
     {
         $this->view->layout()->setLayout( 'login' );
         $this->view->placeholder( 'title' )->set( 'Авторизация в панеле управления' );

         $form = new AuthForm();

         if ( $this->_request->isPost() )
         {
             if ( $form->isValid( $this->_getAllParams() ) )
             {
                 $userLogin = $form->getValue( 'login' );
                 $userPassw = $form->getValue( 'password' );
                 $userPassw = $this->getSHAString( $userLogin, $userPassw );

                 $db          = Zend_Registry::get( 'auth' );
                 $authAdapter = new Zend_Auth_Adapter_DbTable( $db );
                 $authAdapter->setTableName( 'account' );
                 $authAdapter->setIdentityColumn( 'username' );
                 $authAdapter->setCredentialColumn( 'sha_pass_hash' );
                 $authAdapter->setIdentity( $userLogin );
                 $authAdapter->setCredential( $userPassw );

                 $auth   = Zend_Auth::getInstance();
                 $result = $auth->authenticate( $authAdapter );

                 if ( $result->isValid() )
                 {
                     $auth->getStorage()->write(
                             $authAdapter->getResultRowObject(
                    array(
                    'username',
                    'id',
                    'sha_pass_hash',
                    'email',
                    'joindate',
                    'last_ip',
                    'failed_logins',
                    'locked',
                    'last_login',
                    'expansion'
                    )
                             )
                     );

                     $user = Zend_Auth::getInstance()->getIdentity();
                     OperationLogs::getInstance()->setClientIps( $this->getClientIps() );
                     OperationLogs::getInstance()->writeLog( '1', $user->id );
                     $session = new Zend_Session_Namespace( 'usercp_session' );
                     $userIp = $this->getClientIps();
                     $session->user_ip = $userIp['0'];

                     $this->_forward( 'details', 'account', 'usercp' );
                 }
                 else
                 {
                     $result = Account::getInstance()->findAccountByName( $userLogin );

                     if ( $result != false )
                     {
                         OperationLogs::getInstance()->setClientIps( $this->getClientIps() );
                         OperationLogs::getInstance()->writeLog( '3',
                    $result['id'] );
                     }

                     $this->view->error = 'Неверный логин, или пароль';
                 }
             }
             else
             {
                 $this->view->error = $form->renderFormErrors();
                 $form->removeDecorator( 'FormErrors' );
             }
         }
         $this->view->form = $form;
     }