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代码
会员管理 - 忘记密码

会员忘记密码，用于站点用户找回密码，暂时通过邮件找回密码，功能暂时未对外开放。
测试Demo
1: 填写账户名
2: 验证身份
3: 设置新密码
: 完成
/**
 * [forget 忘记密码]
 */
public function forget(){
    $this->islogin();
    if($this->request->isPost()){
        //验证ip是否被限制
        $this->iplimit();

        //获取数据
        $data = $this->request->post();

        //输入用户名
        if($data['type'] == 'username'){
            //验证码
            if(isset($data['code']) && !empty($data['code'])){
                if(!check_verify($data['code'])){
                    $this->error(lang('l_verify_error'));
                }
            }

            //用户
            $user = \Db::name('user');
            $where[] = ['username', '=', $data['username']];
            $where[] = ['type', '=', 1];
            $where[] = ['status', '=', 1];

            //验证是否存在
            if(!$userinfo = $user->where($where)->find()){
                $this->error(lang('l_name_not_exists'));
            }

            //输入用户名完成
            $this->success(lang('l_check_success'), url('forget', array('type'=>'check','user'=>encode($data['username']))));

        //验证身份
        } elseif($data['type'] == 'check') {

            //判断找回密码类型
            if(md5($data['code']) == session('forgetpasswodcode')){
                $this->success(lang('l_check_success'), url('forget',array('type'=>'password','uid'=>$data['uid'])));
            } else {
                $this->error(lang('l_forget_code_error'));
            }

        //重置密码    
        } elseif($data['type'] == 'password') {
            
            //验证是否已经获取验证码
            if(!session('?forgetpasswodcode')){
                $this->error(lang('l_access_error'));
            }

            //验证密码是否一致
            if(sha1(md5($data['password'])) != sha1(md5($data['checkpassword']))){
                $this->error(lang('l_checkpass_error'));
            }

            //修改密码
            $user = \Db::name('user');
            $where[] = ['id', '=', $data['uid']];
            $where[] = ['type', '=', 1];
            $where[] = ['status', '=', 1];

            //验证是否存在用户
            if(!$userinfo = $user->where($where)->find()){
                $this->error(lang('l_access_error'));
            }

            //密码加密
            $params['id'] = $data['uid'];
            $params['salt'] = randcode();
            $params['password'] = createPassword($data['password'], $params['salt']);

            //修改密码
            $res = $user->update($params);
            if($res){
                $this->success(lang('l_reset_pass_success'), url('forget', array('type'=>'finish')));
            } else {
                $this->error(lang('l_reset_pass_error'));
            }
        }

    } else {

        //设置默认的类型
        $type = $this->request->param('type', 'username');
        $arr = array('username', 'check', 'password', 'finish');
        if(!in_array($type, $arr)){
            $type = 'username';
        }

        //验证身份
        if($type == 'check'){
            //验证是否存在用户
            $username = $this->request->param('user', '');
            if(!empty($username)){
                $username = decode($username);
            }

            $user = \Db::name('user');
            $where[] = ['username', '=', $username];
            $where[] = ['type', '=', 1];
            $where[] = ['status', '=', 1];
           
            if(!$userinfo = $user->where($where)->find()){
                $this->error(lang('l_name_not_exists'));
            }

            $this->assign('user', $username);
            $this->assign('userinfo', $userinfo);
        }

        //重置密码
        if($type == 'password'){
            //验证是否已经获取验证码
            if(!session('?forgetpasswodcode')){
                $this->error(lang('l_access_error'));
            }

            //验证是否存在用户
            $uid = $this->request->param('uid','');
            $user = \Db::name('user');
            $where[] = ['id', '=', $uid];
            $where[] = ['type', '=', 1];
            $where[] = ['status', '=', 1];

            if(!$userinfo = $user->where($where)->find()){
                $this->error(lang('l_access_error'));
            }

            $this->assign('userinfo', $userinfo);
        }

        //完成
        if($type == 'finish'){
            //验证是否已经获取验证码
            if(session('?forgetpasswodcode')){
                session('forgetpasswodcode',null);
            }
        }

        $this->assign('type', $type);
        //渲染模板
        return $this->fetch();
    }
}