nodejs实现黑名单中间件设计(2)

exports.countIpAnswerByTime =countIpAnswerByTime;
exports.countOneDayAnswer = countOneDayAnswer;
exports.countOneHourAnswer = countOneHourAnswer;
exports.countOneMinuteAnswer = countOneMinuteAnswer;
exports.newAndSave = newAndSave;

黑名单Proxy:

复制代码 代码如下:

/**
 * Created by YCXJ-wanglihui on 2014/5/28.
 */
'use strict';
var BlackList = require('../models').BlackList;

/**
 * 新建并保存
 * @param backList {BlackList} or {dict} 黑名单数据
 * @param callback
 */
var newAndSave = function(backList, callback){
    if(backList instanceof BlackList){
        backList.save(callback);
    }else{
        var m = new BlackList(backList);
        m.save(callback);
    }
}

/**
 * 禁用Ip访问一小时
 * @param ip {String}
 * @param callback
 */
var newAndSaveOneHourTempForbidden = function(ip, callback){
    var expireTime = Date.now() + 1000*60*60;
    newAndSaveTempForbidden(ip,expireTime, callback);
}

/**
 * 禁用一天
 * @param ip {String}
 * @param callback
 */
var newAndSaveOneDayTempForbidden = function(ip, callback){
    var expireTime = Date.now() + 1000*60*60*24;
    newAndSaveTempForbidden(ip, expireTime, callback);
}

/**
 * 新建临时黑名单
 * @param ip {String}
 * @param expireTime {Number} 到期时间
 * @param callback
 */
var newAndSaveTempForbidden = function(ip, expireTime,callback){
    var blackList = new BlackList({ip:ip, expireTime:expireTime, forbiddenDegree:1});
    newAndSave(blackList, callback);
}

/**
 * 新建并保存永久黑名单
 * @param ip
 * @param callback
 */
var newAndSaveForeverForbidden = function(ip, callback){
    var blackList = new BlackList({ip:ip, forbiddenDegree:2});
    newAndSave(blackList, callback);
}

/**
 * 判断是否在黑名单中
 * @param ip {String} Ip地址
 * @param callback
 */
var isInBlackList = function(ip, callback){
    getBlackListByIp(ip, function(err, blackList){
        if(err){
            callback(err);
        }else if(blackList){
            var currentDate = Date.now();
            if(blackList.forbiddenDegree ===1 && blackList.expireTime> currentDate){
                removeBlackListByIp(ip, function(err){
                    if(err){
                        callback(err);
                    }else{
                        callback(null, false);
                    }
                })
            }else{
                callback(null, true);
            }
        }else{
            callback(null, false);
        }
    })
}

/**
 * 通过Ip获取黑名单条目
 * @param ip
 * @param callback
 */
var getBlackListByIp = function(ip, callback){
    BlackList.findOne({ip:ip}, callback);
}

/**
 * 根据Ip删除黑名单
 * @param ip
 * @param callback
 */
var removeBlackListByIp = function(ip, callback){
    getBlackListByIp(ip, function(err, blackList){
        if(err){
            callback(err);
        }else if(blackList){
            blackList.remove(callback);
        }else{
            callback(null,null);
        }
    })
}