Noissue - Abstract hostname normalization

lib/elemHide.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus 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.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 "use strict";
 
 /**
  * @fileOverview Element hiding implementation.
  */
 
 const {ElemHideExceptions} = require("./elemHideExceptions");
 const {filterNotifier} = require("./filterNotifier");
-const {suffixes} = require("./domain");
+const {normalizeHostname, suffixes} = require("./domain");
 
 /**
  * The maximum number of selectors in a CSS rule. This is used by
  * <code>{@link createStyleSheet}</code> to split up a long list of selectors
  * into multiple rules.
  * @const {number}
  * @default
  */
 const selectorGroupSize = 1024;
 
@@ skipping 354 matching lines @@
    *
    * @returns {ElemHideStyleSheet} An object containing the CSS code and the
    *   list of selectors.
    */
   generateStyleSheetForDomain(domain, specificOnly = false,
                               includeSelectors = false)
   {
     let code = null;
     let selectors = null;
 
-    if (domain[domain.length - 1] == ".")
-      domain = domain.replace(/\.+$/, "");
-
-    domain = domain.toLowerCase();
+    domain = normalizeHostname(domain);
 
     if (specificOnly)
     {
       selectors = getConditionalSelectors(domain, true);
       code = createStyleSheet(selectors);
     }
     else
     {
       let knownSuffix = getKnownSuffix(domain);
 
@@ skipping 91 matching lines @@
 {
   let styleSheet = "";
 
   for (let selectorGroup of splitSelectors(selectors))
     styleSheet += createRule(selectorGroup);
 
   return styleSheet;
 }
 
 exports.createStyleSheet = createStyleSheet;