From 4c6a2323d90e9321ec2b78e226167b3013ea69ab Mon Sep 17 00:00:00 2001 From: Wojtek Kosior Date: Sat, 29 Jan 2022 00:03:51 +0100 Subject: make Haketilo buildable again (for Mozilla) How cool it is to throw away 5755 lines of code... --- content/main.js | 357 -------------------------------------------------------- 1 file changed, 357 deletions(-) delete mode 100644 content/main.js (limited to 'content/main.js') diff --git a/content/main.js b/content/main.js deleted file mode 100644 index 8b24323..0000000 --- a/content/main.js +++ /dev/null @@ -1,357 +0,0 @@ -/** - * This file is part of Haketilo. - * - * Function: Main content script that runs in all frames. - * - * Copyright (C) 2021 Wojtek Kosior - * Copyright (C) 2021 jahoti - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * As additional permission under GNU GPL version 3 section 7, you - * may distribute forms of that code without the copy of the GNU - * GPL normally required by section 4, provided you include this - * license notice and, in case of non-source distribution, a URL - * through which recipients can access the Corresponding Source. - * If you modify file(s) with this exception, you may extend this - * exception to your version of the file(s), but you are not - * obligated to do so. If you do not wish to do so, delete this - * exception statement from your version. - * - * As a special exception to the GPL, any HTML file which merely - * makes function calls to this code, and for that purpose - * includes it by reference shall be deemed a separate work for - * copyright law purposes. If you modify this code, you may extend - * this exception to your version of the code, but you are not - * obligated to do so. If you do not wish to do so, delete this - * exception statement from your version. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - * - * I, Wojtek Kosior, thereby promise not to sue for violation of this file's - * license. Although I request that you do not make use of this code in a - * proprietary program, I am not going to enforce this in court. - */ - -#IMPORT content/activity_info_server.js - -#FROM content/page_actions.js IMPORT handle_page_actions -#FROM common/misc.js IMPORT gen_nonce, is_privileged_url, \ - csp_header_regex -#FROM common/browser.js IMPORT browser - -/* CSP rule that blocks scripts according to policy's needs. */ -function make_csp_rule(policy) -{ - let rule = "prefetch-src 'none'; script-src-attr 'none';"; - const script_src = policy.nonce !== undefined ? - `'nonce-${policy.nonce}'` : "'none'"; - rule += ` script-src ${script_src}; script-src-elem ${script_src};`; - return rule; -} - -document.content_loaded = document.readyState === "complete"; -const wait_loaded = e => e.content_loaded ? Promise.resolve() : - new Promise(c => e.addEventListener("DOMContentLoaded", c, {once: true})); - -wait_loaded(document).then(() => document.content_loaded = true); - -/* - * In the case of HTML documents: - * 1. When injecting some payload we need to sanitize CSP tags before - * they reach the document. - * 2. Only tags inside are considered valid by the browser and - * need to be considered. - * 3. We want to detach from document, wait until its completes - * loading, sanitize it and re-attach . - * 4. We shall wait for anything to appear in or after and take that as - * a sign has finished loading. - * 5. Otherwise, getting the `DOMContentLoaded' event on the document shall also - * be a sign that is fully loaded. - */ - -function make_body_start_observer(DOM_element, waiting) -{ - const observer = new MutationObserver(() => try_body_started(waiting)); - observer.observe(DOM_element, {childList: true}); - return observer; -} - -function try_body_started(waiting) -{ - const body = waiting.detached_html.querySelector("body"); - - if ((body && (body.firstChild || body.nextSibling)) || - waiting.doc.documentElement.nextSibling) { - finish_waiting(waiting); - return true; - } - - if (body && waiting.observers.length < 2) - waiting.observers.push(make_body_start_observer(body, waiting)); -} - -function finish_waiting(waiting) -{ - if (waiting.finished) - return; - waiting.finished = true; - waiting.observers.forEach(observer => observer.disconnect()); - setTimeout(waiting.callback, 0); -} - -function _wait_for_head(doc, detached_html, callback) -{ - const waiting = {doc, detached_html, callback, observers: []}; - - if (try_body_started(waiting)) - return; - - waiting.observers = [make_body_start_observer(detached_html, waiting)]; - - wait_loaded(doc).then(() => finish_waiting(waiting)); -} - -function wait_for_head(doc, detached_html) -{ - return new Promise(cb => _wait_for_head(doc, detached_html, cb)); -} - -const blocked_str = "blocked"; - -function block_attribute(node, attr, ns=null) -{ - const [hasa, geta, seta, rema] = ["has", "get", "set", "remove"] - .map(m => (n, ...args) => typeof ns === "string" ? - n[`${m}AttributeNS`](ns, ...args) : n[`${m}Attribute`](...args)); - /* - * Disabling attributes by prepending `-blocked' allows them to still be - * relatively easily accessed in case they contain some useful data. - */ - const construct_name = [attr]; - while (hasa(node, construct_name.join(""))) - construct_name.unshift(blocked_str); - - while (construct_name.length > 1) { - construct_name.shift(); - const name = construct_name.join(""); - seta(node, `${blocked_str}-${name}`, geta(node, name)); - } - - rema(node, attr); -} - -/* - * Used to disable `