105 lines
2.4 KiB
JavaScript
105 lines
2.4 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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(function(){
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"use strict";
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let scope;
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if ((typeof exports) !== "undefined"){
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scope = exports;
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}
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else {
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scope = require.register("./check", {});
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}
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const settings = require("./settings");
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const lists = require("./lists");
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const {parseErrorStack} = require("./callingStack");
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const logging = require("./logging");
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scope.check = function check({url, errorStack}){
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url = new URL(url || "about:blank");
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const match = checkBoth(errorStack, url, settings.get("blockMode", url)).match(
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/^(block|allow|fake|ask)(|Everything|Internal)$/
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);
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if (match){
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return {
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url: url,
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internal: match[2] === "Internal",
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mode: match[1]
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};
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}
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else {
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return {
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url: url,
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internal: false,
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mode: "block"
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};
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}
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};
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function checkBoth(errorStack, url, blockMode){
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if (settings.enableStackList && errorStack && checkStack(errorStack)){
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return "allow";
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}
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else {
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return checkURL(url, blockMode);
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}
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}
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function checkURL(url, blockMode){
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logging.message("check url %s for block mode %s", url, blockMode);
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switch (url.protocol){
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case "about:":
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if (url.pathname === "blank"){
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logging.message("use regular mode on about:blank");
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break;
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}
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logging.message("allow internal URLs");
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return "allowInternal";
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case "chrome:":
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logging.message("allow internal URLs");
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return "allowInternal";
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}
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let mode = "block";
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switch (blockMode){
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case "blockEverything":
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mode = "block";
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break;
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case "block":
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case "ask":
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case "fake":
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case "allow":
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if (url && lists.get("white").match(url)){
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mode = "allow";
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}
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else if (url && lists.get("black").match(url)){
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mode = "block";
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}
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else {
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mode = blockMode;
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}
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break;
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case "allowEverything":
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mode = "allow";
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break;
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default:
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logging.warning("Unknown blocking mode (" + blockMode + "). Default to block everything.");
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}
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return mode;
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}
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function checkStack(errorStack){
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if (settings.enableStackList){
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const stackList = lists.get("stack");
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if (stackList.length){
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const callingStack = parseErrorStack(errorStack);
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return stackList.match(callingStack);
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}
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}
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return false;
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}
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scope.checkStack = checkStack;
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}()); |