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| <!doctype html> | |
| <html> | |
| <head> | |
| <script src='https://www.google.com/recaptcha/api.js'></script> | |
| <script> | |
| function registerAPI(form) { | |
| var params = { | |
| username: form.username.value, | |
| password: form.password.value, | |
| email: form.email.value, | |
| recaptcha: document.getElementById("g-recaptcha-response").value | |
| }; | |
| var xhr = new XMLHttpRequest(); | |
| xhr.open("POST", "/register"); | |
| xhr.onload = function() { | |
| var json = JSON.parse(xhr.responseText); | |
| console.log(json); | |
| if (json.registeredSuccessfully) { | |
| showSuccess(); | |
| } else { | |
| showError(json.reason); | |
| } | |
| } | |
| xhr.setRequestHeader("Content-type", "application/json"); | |
| xhr.send(JSON.stringify(params)); | |
| } | |
| function showSuccess() { | |
| document.getElementById("form").style.display = "none"; | |
| document.getElementById("success").style.display = "block"; | |
| } | |
| function showError(err) { | |
| document.getElementById("error").innerHTML = err; | |
| } | |
| </script> | |
| </head> | |
| <body> | |
| <h1>Register for test site</h1> | |
| <form action="register" method="post" onsubmit="registerAPI(this);return false;" id="form"> | |
| <span id="error"></span><br> | |
| <input type="text" name="username" placeholder="Username"><br> | |
| <input type="text" name="email" placeholder="Email"><br> | |
| <input type="password" name="password" placeholder="Password"><br> | |
| <div class="g-recaptcha" data-sitekey=" SITEKEY GOES HERE "></div> | |
| <input type="submit" value="Register"> | |
| </form> | |
| <div id="success" style="display:none"> | |
| Successfully registered, yay. | |
| </div> | |
| </body> | |
| </html> |
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| var express = require('express'); | |
| var bodyParser = require('body-parser'); | |
| var engines = require('consolidate'); | |
| var app = express(); | |
| var https = require('https'); | |
| app.use(bodyParser.urlencoded({ extended: false })); | |
| app.use(bodyParser.json({ extended: false })); | |
| app.engine('html', engines.hogan); | |
| app.get('/', function(req, res) { | |
| res.render('form.html'); | |
| }); | |
| app.post('/register', function(req, res) { | |
| console.log(req.body); | |
| verifyRecaptcha(req.body["recaptcha"], function(success) { | |
| if (success) { | |
| res.end("Success!"); | |
| // TODO: do registration using params in req.body | |
| } else { | |
| res.end("Captcha failed, sorry."); | |
| // TODO: take them back to the previous page | |
| // and for the love of everyone, restore their inputs | |
| } | |
| }); | |
| }); | |
| app.listen(3000); | |
| console.log("running on port 3000"); | |
| var SECRET = ""; | |
| // Helper function to make API call to recatpcha and check response | |
| function verifyRecaptcha(key, callback) { | |
| https.get("https://www.google.com/recaptcha/api/siteverify?secret=" + SECRET + "&response=" + key, function(res) { | |
| var data = ""; | |
| res.on('data', function (chunk) { | |
| data += chunk.toString(); | |
| }); | |
| res.on('end', function() { | |
| try { | |
| var parsedData = JSON.parse(data); | |
| console.log(parsedData); | |
| callback(parsedData.success); | |
| } catch (e) { | |
| callback(false); | |
| } | |
| }); | |
| }); | |
| } |
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| { | |
| "name": "captcha", | |
| "version": "0.0.0", | |
| "private": true, | |
| "main": "index.js", | |
| "scripts": { | |
| "test": "echo \"Error: no test specified\" && exit 1" | |
| }, | |
| "dependencies": { | |
| "body-parser": "~1.13.2", | |
| "cookie-parser": "~1.3.5", | |
| "debug": "~2.2.0", | |
| "consolidate": "0.13.1", | |
| "hogan.js": "3.0.2", | |
| "express": "~4.13.1", | |
| "jade": "~1.11.0", | |
| "morgan": "~1.6.1", | |
| "serve-favicon": "~2.3.0" | |
| } | |
| } |
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| function verifyRecaptcha(key, callback) { | |
| https.get("https://www.google.com/recaptcha/api/siteverify?secret=" + SECRET + "&response=g-recaptcha-response", function(res) { | |
| var data = ""; | |
| res.on('data', function (chunk) { | |
| data += chunk.toString(); | |
| }); | |
| res.on('end', function() { | |
| try { | |
| var parsedData = JSON.parse(data); | |
| console.log(parsedData); | |
| callback(parsedData.success); | |
| } catch (e) { | |
| callback(false); | |
| } | |
| }); | |
| }); | |
| } |
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