Question

我正在开发一个无重启的FF插件，它将改变特定页面的HTTP请求（特别是用户代理）中的标头属性。

我一直在查看HTTP请求观察者文档https://developer.mozilla.org/en-US/docs/Setting_HTTP_request_headers#Observers，但这似乎在重新启动的SDK中不可用。我错过了什么吗？我是否有其他选项来更改来自特定页面的请求的用户代理？

谢谢！

Answer 1

复制粘贴，这将在访问任何Google网站时添加自定义标头：

const {Cu, Ci} = require('chrome'); //im not sure about this line plz verify, im not an sdk guy but know a bit about it
Cu.import('resource://gre/modules/Services.jsm');

var httpRequestObserver =
{
    observe: function(subject, topic, data)
    {
        var httpChannel, requestURL;

        if (topic == "http-on-modify-request") {
            httpChannel = subject.QueryInterface(Ci.nsIHttpChannel);
            requestURL = httpChannel.URI.spec;

            if (requestURL.indexOf('google.com') > -1) {
                httpChannel.setRequestHeader('MyCustomRequestHeader', 'hiiii', false);
            }

            return;
        }
    }
};

Services.obs.addObserver(httpRequestObserver, "http-on-modify-request", false);
//Services.obs.removeObserver(httpRequestObserver, "http-on-modify-request", false); //run this on shudown of your addon otherwise the observer stags registerd

也是一张纸条。因为您想要更改用户请求，请确保在httpChannel.setRequestHeader('MyCustomRequestHeader', 'hiiii', false);中将第三个参数设置为false，否则它会将预先存在的用户代理与您提供的新用户代理合并

HTTP请求观察器在无重启FF附加组件中

1 个答案: