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95 lines
2.3 KiB
JavaScript
95 lines
2.3 KiB
JavaScript
/**
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* Request Sanitizer
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* Belongs to Decentraleyes.
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*
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* @author Thomas Rientjes
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* @since 2018-01-10
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* @license MPL 2.0
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*
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* 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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'use strict';
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/**
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* Request Sanitizer
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*/
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var requestSanitizer = {};
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/**
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* Preparation
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* https://codeberg.org/nobody/LocalCDN/issues/442
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*/
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/* eslint-disable indent */
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const ExtraInfoSpec = BrowserType.FIREFOX
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? [WebRequest.BLOCKING, WebRequest.HEADERS]
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: [WebRequest.BLOCKING, WebRequest.HEADERS, WebRequest.EXTRA_HEADERS];
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/* eslint-enable indent */
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/**
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* Public Methods
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*/
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requestSanitizer.enable = function () {
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let onBeforeSendHeaders = chrome.webRequest.onBeforeSendHeaders;
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onBeforeSendHeaders.addListener(requestSanitizer._stripMetadata, {
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'urls': stateManager.validHosts
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}, ExtraInfoSpec);
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};
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requestSanitizer.disable = function () {
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let onBeforeSendHeaders = chrome.webRequest.onBeforeSendHeaders;
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onBeforeSendHeaders.removeListener(requestSanitizer._stripMetadata, {
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'urls': stateManager.validHosts
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}, ExtraInfoSpec);
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};
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/**
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* Private Methods
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*/
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requestSanitizer._stripMetadata = function (requestDetails) {
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let sensitiveHeaders, initiatorDomain, allowlistedDomains;
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sensitiveHeaders = [Header.COOKIE, Header.ORIGIN, Header.REFERER];
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initiatorDomain = helpers.extractDomainFromUrl(requestDetails.initiator, true);
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allowlistedDomains = helpers.checkAllowlisted(initiatorDomain, requestAnalyzer.allowlistedDomains);
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if (allowlistedDomains) {
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return {
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[WebRequest.HEADERS]: requestDetails.requestHeaders,
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};
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}
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for (let i = 0; i < requestDetails.requestHeaders.length; ++i) {
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if (sensitiveHeaders.indexOf(requestDetails.requestHeaders[i].name) > -1) {
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requestDetails.requestHeaders.splice(i--, 1);
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}
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}
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return {
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[WebRequest.HEADERS]: requestDetails.requestHeaders
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};
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};
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/**
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* Initializations
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*/
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storageManager.type.get({[Setting.STRIP_METADATA]: true}, function (items) {
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if (items === null || items.stripMetadata !== false) {
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requestSanitizer.enable();
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}
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});
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