common/gen_unique.js


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

/**
 * Myext generating unique, per-site hash
 *
 * Copyright (C) 2021 Wojtek Kosior
 * Redistribution terms are gathered in the `copyright' file.
 */

"use strict";

(() => {
    const sha256 = window.sha256;
    const browser = window.browser;
    const is_chrome = window.is_chrome;

    function get_id()
    {
	if (is_chrome)
	    return browser.runtime.getManifest().key.substring(0, 50);
	else
	    return browser.runtime.getURL("dummy");
    }

    function gen_unique(url)
    {
	return "#" + sha256(get_id() + url);
    }

    window.gen_unique = gen_unique;
})();