Firefox:Dive Into Greasemonkey/5.1. Case study: GMail Secure
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5.1. 实例研究: GMail Secure
(译者注：本例已经不适合现在的状况了。现在GMail可以自动实现重定向。）
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强制某个站点使用安全链接（https://）
GMail Secure 通过把 http://gmail.google.com/ 重定向到 https://gmail.google.com 的方法强制GMail使用安全的链接。
Google 提供的网页式邮件服务——GMail (http://gmail.google.com/)，既可以通过非安全链接(http://)，又可以通过安全链接(https://)来访问。我尝试着记住当我在公用场所（例如网吧）查看邮件时要使用安全链接。但是为什么不让电脑帮您记住呢？我写了一个用户脚本，当它检测到当我将通过非安全链接访问GMail时，就自动重定向到安全链接。
例子：把GMail重定向到等价的安全链接
// ==UserScript== // @name GMailSecure // @namespace http://diveintogreasemonkey.org/download/ // @description force GMail to use secure connection // @include http://gmail.google.com/* // ==/UserScript== window.location.href = window.location.href.replace(/^http:/, 'https:');
这个用户脚本很简单，大部分的工作由@include这行完成。
// @include http://gmail.google.com/*
只有当@include的条件满足时，这个用户脚本才会运行。所以，如果脚本运行了，我就会知道我写错了（通过非安全链接访问GMail）。要转换到安全链接，只需要一行代码，它并不改变页面的URL，只是用https:// 代替了http://
window.location.href = window.location.href.replace(/^http:/, 'https:');
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参见
← 实例研究
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