├── .gitignore
├── LICENSE
├── README.md
├── app.js
├── index.html
└── package.json


/.gitignore:
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 1 | # Logs
 2 | logs
 3 | *.log
 4 | npm-debug.log*
 5 | 
 6 | # Runtime data
 7 | pids
 8 | *.pid
 9 | *.seed
10 | 
11 | # Directory for instrumented libs generated by jscoverage/JSCover
12 | lib-cov
13 | 
14 | # Coverage directory used by tools like istanbul
15 | coverage
16 | 
17 | # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
18 | .grunt
19 | 
20 | # node-waf configuration
21 | .lock-wscript
22 | 
23 | # Compiled binary addons (http://nodejs.org/api/addons.html)
24 | build/Release
25 | 
26 | # Dependency directory
27 | node_modules
28 | 
29 | # Optional npm cache directory
30 | .npm
31 | 
32 | # Optional REPL history
33 | .node_repl_history
34 | 


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/LICENSE:
--------------------------------------------------------------------------------
 1 | The MIT License (MIT)
 2 | 
 3 | Copyright (c) 2016 Shahid Shaikh
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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/README.md:
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 1 | # google reCAPTCHA using Node.js
 2 | 
 3 | ## How to run the code
 4 | 
 5 | Clone the project.
 6 | 
 7 | Switch to the cloned directory and run ```npm install``` to install required dependency.
 8 | 
 9 | Run ```node app.js``` and visit ```localhost:3000``` to view the app.
10 | 
11 | ## Tutorial
12 | 
13 | https://codeforgeek.com/google-recaptcha-node-js-tutorial/
14 | 


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/app.js:
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 1 | var express = require('express');
 2 | var bodyParser = require('body-parser');
 3 | var request = require('request');
 4 | var app = express();
 5 | 
 6 | app.use(bodyParser.json());
 7 | app.use(bodyParser.urlencoded({extended : false}));
 8 | 
 9 | app.get('/',function(req,res) {
10 |   // Sending our HTML file to browser.
11 |   res.sendFile(__dirname + '/index.html');
12 | });
13 | 
14 | app.post('/submit',function(req,res){
15 |   // g-recaptcha-response is the key that browser will generate upon form submit.
16 |   // if its blank or null means user has not selected the captcha, so return the error.
17 |   if(req.body['g-recaptcha-response'] === undefined || req.body['g-recaptcha-response'] === '' || req.body['g-recaptcha-response'] === null) {
18 |     return res.json({"responseCode" : 1,"responseDesc" : "Please select captcha"});
19 |   }
20 |   // Put your secret key here.
21 |   var secretKey = "<<put your secret key>>";
22 |   // req.connection.remoteAddress will provide IP address of connected user.
23 |   var verificationUrl = "https://www.google.com/recaptcha/api/siteverify?secret=" + secretKey + "&response=" + req.body['g-recaptcha-response'] + "&remoteip=" + req.connection.remoteAddress;
24 |   // Hitting GET request to the URL, Google will respond with success or error scenario.
25 |   request(verificationUrl,function(error,response,body) {
26 |     body = JSON.parse(body);
27 |     // Success will be true or false depending upon captcha validation.
28 |     if(body.success !== undefined && !body.success) {
29 |       return res.json({"responseCode" : 1,"responseDesc" : "Failed captcha verification"});
30 |     }
31 |     res.json({"responseCode" : 0,"responseDesc" : "Sucess"});
32 |   });
33 | });
34 | 
35 | // This will handle 404 requests.
36 | app.use("*",function(req,res) {
37 |   res.status(404).send("404");
38 | })
39 | 
40 | // lifting the app on port 3000.
41 | app.listen(3000);
42 | 


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/index.html:
--------------------------------------------------------------------------------
 1 | <html>
 2 |   <head>
 3 |     <title>Google recapcha using Node.js demo - Codeforgeek</title>
 4 |     <script src='https://www.google.com/recaptcha/api.js'></script>
 5 |   </head>
 6 |   <body>
 7 |     <h1>Google reCAPTHA Demo using Node.js</h1>
 8 |     <title>Google recapcha demo - Codeforgeek</title>
 9 |     <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
10 |     <script src='https://www.google.com/recaptcha/api.js'></script>
11 |   </head>
12 |   <body>
13 |     <nav class="navbar navbar-default navbar-fixed-top">
14 |     <div class="navbar-header" style='margin-left : 18%'>
15 |       <script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
16 | <!-- leaderboard-2 -->
17 | <ins class="adsbygoogle"
18 |      style="display:inline-block;width:728px;height:90px"
19 |      data-ad-client="ca-pub-1093991142748141"
20 |      data-ad-slot="2273512127"></ins>
21 | <script>
22 | (adsbygoogle = window.adsbygoogle || []).push({});
23 | </script>
24 |     </div>
25 |     </nav>
26 |     <div class='form-group' style="margin-top: 100px; width : 600px; margin-left : 25%;">
27 |  <h1>Google recaptcha using Node.js</h1>   
28 | <form id="comment_form" action='/submit' method="post">
29 |       <input type="email" placeholder="Type your email" size="40"><br><br>
30 |       <textarea name="comment" rows="8" cols="39"></textarea><br><br>
31 |       <div class="g-recaptcha" data-sitekey="6LcX1v4SAAAAAOf5ffTwmpYwTx07N5Df5ztmSkde"></div><br>
32 |       <input type="submit" name="submit" value="Post comment"><br><br>
33 |     </form>
34 |   </div>
35 |   </body>
36 |   <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
37 |   <script src="http://cdnjs.cloudflare.com/ajax/libs/jquery.form/3.51/jquery.form.min.js"></script>
38 |   <script src='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js'></script>
39 |   <script>
40 |     $(document).ready(function() {
41 |       $('#comment_form').submit(function() {
42 |         $(this).ajaxSubmit({
43 |           error: function(xhr) {
44 |             status('Error: ' + xhr.status);
45 |           },
46 |          success: function(response) {
47 |            alert(response.responseDesc);
48 |          }
49 |         });
50 |         //Very important line, it disable the page refresh.
51 |         return false;
52 |       });
53 |     });
54 |   </script>
55 | </html>
56 | 
57 | 


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/package.json:
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 1 | {
 2 |   "name": "google-racapcha-node",
 3 |   "version": "1.0.0",
 4 |   "description": "",
 5 |   "main": "app.js",
 6 |   "scripts": {
 7 |     "test": "echo \"Error: no test specified\" && exit 1"
 8 |   },
 9 |   "repository": {
10 |     "type": "git",
11 |     "url": "git+https://github.com/codeforgeek/google-racapcha-node.git"
12 |   },
13 |   "author": "Shahid shaikh",
14 |   "license": "MIT",
15 |   "bugs": {
16 |     "url": "https://github.com/codeforgeek/google-racapcha-node/issues"
17 |   },
18 |   "homepage": "https://github.com/codeforgeek/google-racapcha-node#readme",
19 |   "dependencies": {
20 |     "body-parser": "^1.15.0",
21 |     "express": "^4.13.4",
22 |     "request": "^2.69.0"
23 |   }
24 | }
25 | 


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