node-recaptcha renders and verifies Recaptcha captchas.
Via git:
$ git clone git://github.com/mirhampt/node-recaptcha.git ~/.node_libraries/node-recaptcha Via npm:
$ npm install recaptcha Before you can use this module, you must visit http://www.google.com/recaptcha to request a public and private API key for your domain.
To run the tests for this module, you will first need to install nodeunit. Then, simply run:
$ nodeunit test.js See these instructions for help customizing the look of Recaptcha. In brief, you will need to add a structure like the following before the form in your document:
<script type="text/javascript"> var RecaptchaOptions = { theme : 'clean', lang : 'en' }; </script> Example Using Express
app.js:
var express = require('express'), Recaptcha = require('recaptcha').Recaptcha; var PUBLIC_KEY = 'YOUR_PUBLIC_KEY', PRIVATE_KEY = 'YOUR_PRIVATE_KEY'; var app = express.createServer(); app.configure(function() { app.use(express.bodyParser()); }); app.get('/', function(req, res) { var recaptcha = new Recaptcha(PUBLIC_KEY, PRIVATE_KEY); res.render('form.jade', { layout: false, locals: { recaptcha_form: recaptcha.toHTML() } }); }); app.post('/', function(req, res) { var data = { remoteip: req.connection.remoteAddress, challenge: req.body.recaptcha_challenge_field, response: req.body.recaptcha_response_field }; var recaptcha = new Recaptcha(PUBLIC_KEY, PRIVATE_KEY, data); recaptcha.verify(function(success, error_code) { if (success) { res.send('Recaptcha response valid.'); } else { // Redisplay the form. res.render('form.jade', { layout: false, locals: { recaptcha_form: recaptcha.toHTML() } }); } }); }); app.listen(3000); views/form.jade:
form(method='POST', action='.') != recaptcha_form input(type='submit', value='Check Recaptcha') Make sure express and jade are installed, then:
$ node app.js