function login() {
        if(isset($_GET[‘dosubmit‘])) {
            
            //不为口令卡验证
            if (!isset($_GET[‘card‘])) {
                $username = isset($_POST[‘username‘]) ? trim($_POST[‘username‘]) : showmessage(L(‘nameerror‘),HTTP_REFERER);
                $code = isset($_POST[‘code‘]) && trim($_POST[‘code‘]) ? trim($_POST[‘code‘]) : showmessage(L(‘input_code‘), HTTP_REFERER);
                if ($_SESSION[‘code‘] != strtolower($code)) {
                    $_SESSION[‘code‘] = ‘‘;
                    showmessage(L(‘code_error‘), HTTP_REFERER);
                }
            } else { //口令卡验证
                if (!isset($_SESSION[‘card_verif‘]) || $_SESSION[‘card_verif‘] != 1) {
                    showmessage(L(‘your_password_card_is_not_validate‘), ‘?m=admin&c=index&a=public_card‘);
                }
                $username = $_SESSION[‘card_username‘] ? $_SESSION[‘card_username‘] :  showmessage(L(‘nameerror‘),HTTP_REFERER);
            }
            
            //密码错误剩余重试次数
            $this->times_db = pc_base::load_model(‘times_model‘);
            $rtime = $this->times_db->get_one(array(‘username‘=>$username,‘isadmin‘=>1));
            $maxloginfailedtimes = getcache(‘common‘,‘commons‘);
            $maxloginfailedtimes = (int)$maxloginfailedtimes[‘maxloginfailedtimes‘];

            if($rtime[‘times‘] >= $maxloginfailedtimes) {
                $minute = 60-floor((SYS_TIME-$rtime[‘logintime‘])/60);
                if($minute>0) showmessage(L(‘wait_1_hour‘,array(‘minute‘=>$minute)));
            }
            //查询帐号
            $r = $this->db->get_one(array(‘username‘=>$username));
            if(!$r) showmessage(L(‘user_not_exist‘),‘?m=admin&c=index&a=login‘);
            $password = md5(md5(trim((!isset($_GET[‘card‘]) ? $_POST[‘password‘] : $_SESSION[‘card_password‘]))).$r[‘encrypt‘]);
            
            if($r[‘password‘] != $password) {
                $ip = ip();
                if($rtime && $rtime[‘times‘] < $maxloginfailedtimes) {
                    $times = $maxloginfailedtimes-intval($rtime[‘times‘]);
                    $this->times_db->update(array(‘ip‘=>$ip,‘isadmin‘=>1,‘times‘=>‘+=1‘),array(‘username‘=>$username));
                } else {
                    $this->times_db->delete(array(‘username‘=>$username,‘isadmin‘=>1));
                    $this->times_db->insert(array(‘username‘=>$username,‘ip‘=>$ip,‘isadmin‘=>1,‘logintime‘=>SYS_TIME,‘times‘=>1));
                    $times = $maxloginfailedtimes;
                }
                showmessage(L(‘password_error‘,array(‘times‘=>$times)),‘?m=admin&c=index&a=login‘,3000);
            }
            $this->times_db->delete(array(‘username‘=>$username));
            
            //查看是否使用口令卡
            if (!isset($_GET[‘card‘]) && $r[‘card‘] && pc_base::load_config(‘system‘, ‘safe_card‘) == 1) {
                $_SESSION[‘card_username‘] = $username;
                $_SESSION[‘card_password‘] = $_POST[‘password‘];
                header("location:?m=admin&c=index&a=public_card");
                exit;
            } elseif (isset($_GET[‘card‘]) && pc_base::load_config(‘system‘, ‘safe_card‘) == 1 && $r[‘card‘]) {//对口令卡进行验证
                isset($_SESSION[‘card_username‘]) ? $_SESSION[‘card_username‘] = ‘‘ : ‘‘;
                isset($_SESSION[‘card_password‘]) ? $_SESSION[‘card_password‘] = ‘‘ : ‘‘;
                isset($_SESSION[‘card_password‘]) ? $_SESSION[‘card_verif‘] = ‘‘ : ‘‘;
            }
            
            $this->db->update(array(‘lastloginip‘=>ip(),‘lastlogintime‘=>SYS_TIME),array(‘userid‘=>$r[‘userid‘]));
            $_SESSION[‘userid‘] = $r[‘userid‘];
            $_SESSION[‘roleid‘] = $r[‘roleid‘];
            $_SESSION[‘pc_hash‘] = random(6,‘abcdefghigklmnopqrstuvwxwyABCDEFGHIGKLMNOPQRSTUVWXWY0123456789‘);
            $_SESSION[‘lock_screen‘] = 0;
            $default_siteid = self::return_siteid();
            $cookie_time = SYS_TIME+86400*30;
            if(!$r[‘lang‘]) $r[‘lang‘] = ‘zh-cn‘;
            param::set_cookie(‘admin_username‘,$username,$cookie_time);
            param::set_cookie(‘siteid‘, $default_siteid,$cookie_time);
            param::set_cookie(‘userid‘, $r[‘userid‘],$cookie_time);
            param::set_cookie(‘admin_email‘, $r[‘email‘],$cookie_time);
            param::set_cookie(‘sys_lang‘, $r[‘lang‘],$cookie_time);
            showmessage(L(‘login_success‘),‘?m=admin&c=index‘);
            //同步登陆vms,先检查是否启用了vms
            $video_setting = getcache(‘video‘, ‘video‘);
            if ($video_setting[‘sn‘] && $video_setting[‘skey‘]) {
                $vmsapi = pc_base::load_app_class(‘ku6api‘, ‘video‘);
                $vmsapi->member_login_vms();
            }
        } else {
            pc_base::load_sys_class(‘form‘, ‘‘, 0);
            include $this->admin_tpl(‘login‘);
        }
    }

function public_logout() {
        $_SESSION[‘userid‘] = 0;
        $_SESSION[‘roleid‘] = 0;
        param::set_cookie(‘admin_username‘,‘‘);
        param::set_cookie(‘userid‘,0);
        
        //退出phpsso
        $phpsso_api_url = pc_base::load_config(‘system‘, ‘phpsso_api_url‘);
        $phpsso_logout = ‘<script type="text/javascript" src="‘.$phpsso_api_url.‘/api.php?op=logout" reload="1"></script>‘;
        
        showmessage(L(‘logout_success‘).$phpsso_logout,‘?m=admin&c=index&a=login‘);
    }