服务器端浏览器检测? node.js [英] server-side browser detection? node.js

问题描述

我见过的大多数实现都是在客户端进行浏览器检测.我只是想知道是否有可能在将任何资源发送到客户端之前进行浏览器检测.

Most implementations i've seen are for browser detection on the client side. I was just wondering if it was possible to do browser detection before sending any resources to the client.

谢谢.

推荐答案

var ua = request.headers['user-agent'],
    $ = {};

if (/mobile/i.test(ua))
    $.Mobile = true;

if (/like Mac OS X/.test(ua)) {
    $.iOS = /CPU( iPhone)? OS ([0-9\._]+) like Mac OS X/.exec(ua)[2].replace(/_/g, '.');
    $.iPhone = /iPhone/.test(ua);
    $.iPad = /iPad/.test(ua);
}

if (/Android/.test(ua))
    $.Android = /Android ([0-9\.]+)[\);]/.exec(ua)[1];

if (/webOS\//.test(ua))
    $.webOS = /webOS\/([0-9\.]+)[\);]/.exec(ua)[1];

if (/(Intel|PPC) Mac OS X/.test(ua))
    $.Mac = /(Intel|PPC) Mac OS X ?([0-9\._]*)[\)\;]/.exec(ua)[2].replace(/_/g, '.') || true;

if (/Windows NT/.test(ua))
    $.Windows = /Windows NT ([0-9\._]+)[\);]/.exec(ua)[1];

那应该对您有用.只需将其放入您的响应处理程序中即可.

That should work for you. Just put it in your response handler.

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