在Firefox扩展中通过域/名称访问特定的Cookie [英] Access specific cookies by domain/name in Firefox extension

问题描述

我开发了一个Firefox扩展，需要访问来自特定域的特定cookie。我有这个代码，它获取所有域的所有cookie，我如何请求只有我正在寻找的cookie。

I am developing a Firefox extension and need to access a specific cookie from a specific domain. I have this code which fetches all cookies for all domains, how do I request only the cookie that I am looking for.

var {Cc, Ci} = require("chrome");

var cookieManager = Cc["@mozilla.org/cookiemanager;1"].getService(Ci.nsICookieManager);

var count = cookieManager.enumerator;

while (count.hasMoreElements()){
    var cookie = count.getNext();
    if (cookie instanceof Ci.nsICookie){
        console.log(cookie.host);
        console.log(cookie.name);
        console.log(cookie.value);
    }
}

总而言之，我正在寻找上面的代码，但我不想要遍历所有的域中的所有cookie。

To sum up, I am able to find the cookie that I am looking for with the code above but I don't want to have to iterate through all of the cookies from all domains.

推荐答案

您可以使用 nsICookieManager2 介面（原始 nsICookieManager 界面已冻结，无法更改，这是为什么创建此扩展版本）：

You can use nsICookieManager2 interface (the original nsICookieManager interface was frozen and couldn't be changed which is why this extended version was created):

var cookieManager = Cc["@mozilla.org/cookiemanager;1"]
                      .getService(Ci.nsICookieManager2);
var count = cookieManager.getCookiesFromHost("example.com");

注意：冻结接口的概念在Gecko 2.0从那时起，与 nsICookieManager / nsICookieManager2 类似的一些接口已统一 - 因此在未来的Firefox版本 nsICookieManager2 也可能会消失，所有的功能将暴露在 nsICookieManager 。

Note: the concept of frozen interfaces was dropped in Gecko 2.0 (Firefox 4). Since then some interfaces similar to nsICookieManager/nsICookieManager2 have been unified - so in a future Firefox version nsICookieManager2 might go away as well, all the functionality will be exposed on nsICookieManager then.

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