使用PHP Socket写的POP3类(4)

//获取是否已连接
    function getIsConnect()
    {
        if (!$this->resHandler)
        {
            $this->setMessage("Nonexistent availability connection handler", 2002);
            return false;
        }
        return true;
    }

    //设置消息
    function setMessage($strMessage, $intErrorNum)
    {
        if (trim($strMessage)=='' || $intErrorNum=='')
        {
            return false;
        }
        $this->strMessage    = $strMessage;
        $this->intErrorNum    = $intErrorNum;
        return true;
    }

//获取消息
    function getMessage()
    {
        return $this->strMessage;
    }

//获取错误号
    function getErrorNum()
    {
        return $this->intErrorNum;
    }

//获取请求信息
    function getRequest()
    {
        return $this->strRequest;        
    }

//获取响应信息
    function getResponse()
    {
        return $this->strResponse;
    }

    //---------------
    // 邮件原子操作
    //---------------

//登录邮箱
    function popLogin()
    {
        if (!$this->getIsConnect())
        {
            return false;
        }
        $this->sendCommand("USER ".$this->strEmail);
        $this->getLineResponse();
        $bolUserRight = $this->getRestIsSucceed();

$this->sendCommand("PASS ".$this->strPasswd);
        $this->getLineResponse();
        $bolPassRight = $this->getRestIsSucceed();

if (!$bolUserRight || !$bolPassRight)
        {
            $this->setMessage($this->strResponse, 2004);
            return false;
        }        
        $this->bolIsLogin = true;
        return true;
    }

//退出登录
    function popLogout()
    {
        if (!$this->getIsConnect() && $this->bolIsLogin)
        {
            return false;
        }
        $this->sendCommand("QUIT");
        $this->getLineResponse();
        if (!$this->getRestIsSucceed())
        {
            return false;
        }
        return true;
    }

//获取是否在线
    function getIsOnline()
    {
        if (!$this->getIsConnect() && $this->bolIsLogin)
        {
            return false;
        }
        $this->sendCommand("NOOP");
        $this->getLineResponse();
        if (!$this->getRestIsSucceed())
        {
            return false;
        }
        return true;        
    }