chromium-net-errors-urlbox

Chromium Network Errors

Provides Chromium network errors found in net_error_list.h as custom errors for Node.js.

They correspond to the error codes that could be provided by Electron's did-fail-load event, for example.

Install

npm install chromium-net-errors --save

Example Electron app

var app = require('app');
var BrowserWindow = require('browser-window');
var networkErrors = require('chromium-net-errors');
 
app.on('ready', function () {
 
  var win = new BrowserWindow({ width: 800, height: 600 });
 
  win.webContents.on('did-fail-load', function (e, errorCode) {
    throw networkErrors.createByCode(errorCode);
  });
 
  win.loadUrl('http://blablanotexist.com');
 
});

Will pop-up the following error:

Uncaught Exception:
NameNotResolvedError: The host name could not be resolved.
    at Object.exports.createByCode (/tmp/ele/node_modules/chromium-net-errors/index.js:72:9)
    at EventEmitter.<anonymous> (/tmp/ele/app.js:10:25)
    at emitThree (events.js:97:13)
    at EventEmitter.emit (events.js:172:7)

Usage

var cne = require('chromium-net-errors');

Create new errors

var err = new cne.ConnectionTimedOutError();
 
console.log(err instanceof Error); // true
console.log(err instanceof cne.ChromiumNetError); // true
console.log(err instanceof cne.ConnectionTimedOutError); // true

Create errors by code

var err = cne.createByCode(-201);
 
console.log(err instanceof cne.CertDateInvalidError);
// true
 
console.log(err.isCertificateError());
// true
 
console.log(err.type); 
// certificate
 
console.log(err.message);
// The server responded with a certificate that is signed by an authority
// we don't trust.  The could mean:
//
// 1. An attacker has substituted the real certificate for a cert that
//    contains his public key and is signed by his cousin.
//
// 2. The server operator has a legitimate certificate from a CA we don't
//    know about, but should trust.
//
// 3. The server is presenting a self-signed certificate, providing no
//    defense against active attackers (but foiling passive attackers).

License

MIT