nodejs中ip有关地址的获取

[5Mi]

• node获取url请求客户端ip(ABC三类地址外的则为外网)https://www.zhihu.com/question/43517806

//node获取url请求客户端ip
const getClientIp = (req) => {
  let ip = req.headers['x-forwarded-for'] ||
      req.ip ||
      req.connection.remoteAddress ||
      req.socket.remoteAddress ||
      req.connection.socket.remoteAddress || '';
  if(ip.split(',').length>0){
      ip = ip.split(',')[0]
  }
  return ip;
};

• node判断是否为内网ip

const checkIsInsideIP = (req) => {
  //node檢查是否是內部 IP(内网ip)
  //1.A類地址中:10.0.0.0到10.255.255.255.255
  //2.B類地址中:172.16.0.0到172.31.255.255
  //3.C類地址中:192.168.0.0到192.168.255.255
  
  var ip = req.connection.remoteAddress;
  var address = ip.split(':');
  var ipAddress = address[3];

  if (ipAddress == "127.0.0.1" || ipAddress == "localhost")
  {
    return true;
  }
  
  var aryIpAddress = ipAddress.split('.');

  if (aryIpAddress[0] == "10") {
    return true;
  }
  
  if (aryIpAddress[0] == "192" && aryIpAddress[1] == "168") {
    return true;
  }
  
  if (aryIpAddress[0] == "172") {
    var num = parseInt(aryIpAddress[1]);
    if (num >= 16 && num <= 31) {
      return true;
    }
  }
  
  return false;
}

• node获取服务器内网ip

//node获取服务器内网ip
var os=require('os'),
    iptable={},
    ifaces=os.networkInterfaces();
for (var dev in ifaces) {
  ifaces[dev].forEach(function(details,alias){
    if (details.family=='IPv4') {
      iptable[dev+(alias?':'+alias:'')]=details.address;
    }
  });
}
console.log(iptable);

• 想获取外网地址的话可请求ip查询
  • http://www.net.cn/static/customercare/yourIP.asp
  • http://www.ip138.com/
  • http://www.viewip.info/
  • http://ip.qq.com
  • http://httpbin.org/ip
  • http://www.clarencep.com/ip