The Tor Browser / file revision

 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 Components.utils.import("resource://testing-common/httpd.js");

 const nsIDocumentEncoder = Components.interfaces.nsIDocumentEncoder;

 const replacementChar = Components.interfaces.nsIConverterInputStream.DEFAULT_REPLACEMENT_CHARACTER;

 function loadContentFile(aFile, aCharset) {

     //if(aAsIso == undefined) aAsIso = false;

     if(aCharset == undefined)

         aCharset = 'UTF-8';

     var file = do_get_file(aFile);

     var ios = Components.classes['@mozilla.org/network/io-service;1']

             .getService(Components.interfaces.nsIIOService);

     var chann = ios.newChannelFromURI ( ios.newFileURI (file) );

     chann.contentCharset = aCharset;

     /*var inputStream = Components.classes["@mozilla.org/scriptableinputstream;1"]

                         .createInstance(Components.interfaces.nsIScriptableInputStream);

     inputStream.init(chann.open());

     return inputStream.read(file.fileSize);

     */

     var inputStream = Components.classes["@mozilla.org/intl/converter-input-stream;1"]

                        .createInstance(Components.interfaces.nsIConverterInputStream);

     inputStream.init(chann.open(), aCharset, 1024, replacementChar);

     var str = {}, content = '';

     while (inputStream.readString(4096, str) != 0) {

         content += str.value;

     }

     return content;

 }