HTML5地理位置功能如何工作？ [英] How HTML5 Geolocation Feature Works?

问题描述

浏览器如何知道我在哪里？

完全基于注册的IP地址？如果我在代理的后面呢？

解决方案

这取决于浏览器及其设置。它可能使用GPS，基于WLAN AP的位置，IP位置或任何其他可能的定位方法。

浏览器在本地机器上运行，所以即使您'代理后面，它应该能够找到您的实际IP地址（除非安全功能阻止它被发送到地理位置服务器查找）。是否有任何浏览器足够聪明地处理NAT（本地机器具有私有IP）并查找网关的IP地址，我不知道。

How can the browser tell where I am?

Totally based on registered IP address? What if I'm behind a proxy?

解决方案

That would depend on the browser and its settings. It might use GPS, WLAN AP-based location, IP location, or any other conceivable method of locating itself.

The browser runs on your local machine, so even if you're behind a proxy, it should be able to find your actual IP address (unless security features prevent it from being sent for lookup to a geolocation server). Whether any browser is smart enough to handle being behind a NAT (with the local machine having a private IP) and looking up the gateway's IP address, that I don't know.

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