first commit

.env.example

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+SENDGRID_USERNAME=YOUR_USERNAME
+SENDGRID_PASSWORD=YOUR_PASSWORD

.gitignore

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+# Logs
+logs
+*.log
+
+# Runtime data
+pids
+*.pid
+*.seed
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directory
+# Commenting this out is preferred by some people, see
+# https://www.npmjs.org/doc/misc/npm-faq.html#should-i-check-my-node_modules-folder-into-git-
+node_modules
+
+# Users Environment Variables
+.lock-wscript
+
+.env

README.md

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+# Email-confirmation email app
+
+`cp .env.example .env`
+
+Add your credentials to .env
+
+`mongod`
+
+`npm start`

app.js

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+var express = require('express'),
+    path = require('path'),
+    favicon = require('static-favicon'),
+    logger = require('morgan'),
+    cookieParser = require('cookie-parser'),
+    bodyParser = require('body-parser'),
+    mongoose = require('mongoose'),
+    crypto = require('crypto'),
+    dotenv = require('dotenv');
+
+dotenv.load();
+
+var sendgrid = require('sendgrid')(process.env.SENDGRID_USERNAME, process.env.SENDGRID_PASSWORD);
+
+var dburi = 
+    process.env.MONGOLAB_URI || 
+    process.env.MONGOHQ_URL || 
+    'mongodb://localhost/node-emailauth';
+
+mongoose.connect(dburi, function (err, res) {
+    if (err) { 
+        console.log ('ERROR connecting to: ' + dburi + '. ' + err);
+    } else {
+        console.log ('Succeeded connected to: ' + dburi);
+    }
+});
+
+var userSchema = new mongoose.Schema({
+    email: { type: String, required:true, unique:true },
+    authToken: { type: String, required:true, unique:true },
+    isAuthenticated: { type: Boolean, required:true }
+});
+
+var User = mongoose.model('User', userSchema);
+
+var routes = require('./routes/index');
+var users = require('./routes/users');
+
+var app = express();
+
+// view engine setup
+app.set('views', path.join(__dirname, 'views'));
+app.set('view engine', 'jade');
+
+app.use(favicon());
+app.use(logger('dev'));
+app.use(bodyParser.json());
+app.use(bodyParser.urlencoded());
+app.use(cookieParser());
+app.use(express.static(path.join(__dirname, 'public')));
+
+app.use('/', routes);
+app.use('/users', users);
+
+app.post('/login', function(req,res) {
+    console.log(req.body);
+
+    //generate authentication token
+    var seed = crypto.randomBytes(20);
+    var authToken = crypto.createHash('sha1').update(seed + req.body.email).digest('hex');
+
+    var newUser = new User({
+        email: req.body.email,
+        authToken: authToken,
+        isAuthenticated: false
+    });
+
+    newUser.save(function(err, newUser) {
+        if (err) {
+            return console.error(err);
+        }
+        console.dir(newUser);
+
+        var authenticationURL = 'http://localhost:3000/verify_email?token=' + newUser.authToken;
+        sendgrid.send({
+            to:       newUser.email,
+            from:     '[email protected]',
+            subject:  'Confirm your email',
+            html:     '<a target=_blank href=\"' + authenticationURL + '\">Confirm your email</a>'
+            }, function(err, json) {
+                if (err) { return console.error(err); }
+            console.log(json);
+        });
+    });
+
+    res.render('index', {title: 'Sent authentication email'});
+});
+
+app.get('/verify_email', function(req,res) {
+    console.log('verify_email token: ',req.query.token);
+
+    User.findOne({ authToken: req.query.token }, function(err, user) {
+        if (err) { return console.error(err); }
+        console.dir(user);
+
+        user.isAuthenticated = true;
+        user.save(function (err) {
+            if (err) return console.error(err);
+            console.log('succesfully updated user');
+            console.log(user);
+
+            sendgrid.send({
+                to:       user.email,
+                from:     '[email protected]',
+                subject:  'Email confirmed!',
+                html:     'Awesome! We can now send you kick-ass emails'
+                }, function(err, json) {
+                    if (err) { return console.error(err); }
+                console.log(json);
+            });
+
+            res.send(user);
+
+            //update page
+        });
+    });
+
+    res.render('index', {title: 'Authenticating...'});
+});
+
+/// catch 404 and forward to error handler
+app.use(function(req, res, next) {
+    var err = new Error('Not Found');
+    err.status = 404;
+    next(err);
+});
+
+/// error handlers
+
+// development error handler
+// will print stacktrace
+if (app.get('env') === 'development') {
+    app.use(function(err, req, res, next) {
+        res.status(err.status || 500);
+        res.render('error', {
+            message: err.message,
+            error: err
+        });
+    });
+}
+
+// production error handler
+// no stacktraces leaked to user
+app.use(function(err, req, res, next) {
+    res.status(err.status || 500);
+    res.render('error', {
+        message: err.message,
+        error: {}
+    });
+});
+
+
+module.exports = app;

bin/www

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+#!/usr/bin/env node
+var debug = require('debug')('node-emailauth');
+var app = require('../app');
+
+app.set('port', process.env.PORT || 3000);
+
+var server = app.listen(app.get('port'), function() {
+  debug('Express server listening on port ' + server.address().port);
+});

package.json

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+{
+  "name": "node-emailauth",
+  "version": "0.0.1",
+  "private": true,
+  "scripts": {
+    "start": "node ./bin/www"
+  },
+  "dependencies": {
+    "body-parser": "~1.0.0",
+    "cookie-parser": "~1.0.1",
+    "debug": "~0.7.4",
+    "dotenv": "^0.4.0",
+    "express": "~4.2.0",
+    "jade": "~1.3.0",
+    "mongoose": "^3.8.15",
+    "morgan": "~1.0.0",
+    "sendgrid": "^1.2.0",
+    "static-favicon": "~1.0.0"
+  }
+}

public/stylesheets/style.css

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+body {
+  padding: 50px;
+  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
+}
+
+a {
+  color: #00B7FF;
+}

routes/index.js

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+var express = require('express');
+var router = express.Router();
+
+/* GET home page. */
+router.get('/', function(req, res) {
+  res.render('index', { title: 'Email Confirmation Authentication' });
+});
+
+module.exports = router;

routes/users.js

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+var express = require('express');
+var router = express.Router();
+
+/* GET users listing. */
+router.get('/', function(req, res) {
+  res.send('respond with a resource');
+});
+
+module.exports = router;

views/error.jade

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+extends layout
+
+block content
+  h1= message
+  h2= error.status
+  pre #{error.stack}

views/index.jade

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+extends layout
+
+block content
+  h1 #{title}
+  div.loginbox
+    form(name="login", action="/login", method="post")
+      input(type="email", name="email")
+      input(type="submit", value="login")

views/layout.jade

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+doctype html
+html
+  head
+    title= title
+    link(rel='stylesheet', href='/stylesheets/style.css')
+  body
+    block content