tor-test

This module checks whether a specific ip address is a Tor exit node. In other words tor-test lets you know if a connection to your Node.js application is coming from the Tor network.

See associated blogpost.

Installation

$ npm i -S tor-test

This will install the module and save it in your package.json as dependency.

Usage

const TorTest = require('tor-test');
 
TorTest.isTor('127.0.0.1', (err, isTor) => {
 
    // isTor is false
});

API

fetch(callback):

This methods feeds the cache of the module with a list of Tor exit nodes. It takes 1 parameter:

• callback: a function which signature is function (err) where err is an Error or null.

const TorTest = require('tor-test');
 
TorTest.fetch((err) => ...)

isTor(addr, [force], callback):

This method is used to check if an IP address is a Tor exit node. If fetch has not been called before, it will be called at the first call of isTor. It takes 3 arguments:

• addr: a string representing the IP address to test
• force: a boolean, optional, if present and set to true, it will force a reload of the cached Tor exit node list.
• callback: a function which signature is function (err, result) where:
  • err is an Error or null
  • result is a boolean. It will equal true is addr is the address of a Tor exit node

Cookbook

A cookbook is available for this module:

• Log all connections from Tor (framework agnostic)
• Update the exit nodes list daily
• Express: exclude Tor users
• hapi: exclude Tor users