Issue 6447 - Switch to Harmony modules in lib/*

lib/rsa.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/>.
  */
 
 /* global console */
 
 "use strict";
 
 /**
  * This is a specialized RSA library meant only to verify SHA1-based signatures.
  */
 
-const {BigInteger} = require("jsbn");
-const Rusha = require("rusha");
+import {BigInteger} from "jsbn";
+import Rusha from "rusha";
 
 let rusha = new Rusha();
 
 // Define ASN.1 templates for the data structures used
 function seq(...args)
 {
   return {type: 0x30, children: args};
 }
 function obj(id)
 {
@@ skipping 121 matching lines @@
   }
 }
 
 /**
  * Checks whether the signature is valid for the given public key and data.
  * @param {string} key
  * @param {string} signature
  * @param {string} data
  * @return {boolean}
  */
-function verifySignature(key, signature, data)
+export function verifySignature(key, signature, data)
 {
   let keyData = readPublicKey(key);
   if (!keyData)
     return false;
 
   // We need the exponent as regular number
   keyData.e = parseInt(keyData.e.toString(16), 16);
 
   // Decrypt signature data using RSA algorithm
   let sigInt = new BigInteger(atob(signature), 256);
@@ skipping 16 matching lines @@
     let {sha1} = readASN1(digest.substr(pos), signatureTemplate);
     let expected = new BigInteger(rusha.digest(data), 16);
     return (sha1.compareTo(expected) == 0);
   }
   catch (e)
   {
     console.warn("Invalid encrypted signature: " + e);
     return false;
   }
 }
-exports.verifySignature = verifySignature;