Personal blog written from scratch using Node.js, Bootstrap, and MySQL.
https://jrtechs.net
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203 lines
5.4 KiB
203 lines
5.4 KiB
/**
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* File which sends emails to me from
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* a captcha protected form on the contact
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* page.
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*
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* @author Jeffery Russell 8-19-18
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*/
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//used for file IO
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const utils = require('../utils/utils.js');
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//used for static files
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const includes = require('../includes/includes');
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//for parsing post data
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const qs = require('querystring');
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//cleans form submission
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const sanitizer = require('sanitizer');
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//used to send post data for the captcha
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const Request = require('request');
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//sends the email using a throw away gmail account
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const nodemailer = require("nodemailer");
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//agent for sending the email
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const smtpTransport = require('nodemailer-smtp-transport');
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//captcha secret
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const CAPTCHA_SECRET = utils.getFileLine("../captcha_secret");
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//password to gmail account
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const EMAIL_PASSWORD = utils.getFileLine("../email_password");
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/**
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* Verifies if the captcha response recieved from the post data was
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* valid, or are bots trying to get around the captcha
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*
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* @param data captcha data from post request
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* @returns {Promise} resolves whether the captcha is valid
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*/
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const verifyCapcha = function(data)
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{
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const recaptcha_url = "https://www.google.com/recaptcha/api/siteverify?" +
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"secret=" + CAPTCHA_SECRET + "&" +
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"response=" + data;
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return sync = new Promise(function(resolve, reject)
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{
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Request(recaptcha_url,
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function (error, response, body)
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{
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if (!error && response.statusCode == 200)
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{
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const googleAnswer = JSON.parse(body);
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if(googleAnswer.success == true)
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{
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resolve(true);
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}
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else
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{
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resolve(false);
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}
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}
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else
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{
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resolve(false);
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}
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}
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);
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});
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};
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/**
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* Sends a email to my personal emaail address using a throw away
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* gmail account
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*
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* @param name from contact form
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* @param email from contact form
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* @param message from contact form
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*/
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const sendEmail = function(name, email, message)
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{
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const transporter = nodemailer.createTransport(smtpTransport({
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service: 'gmail',
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host: 'smtp.gmail.com',
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auth: {
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user: 'jrtechswebsite@gmail.com',
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pass: EMAIL_PASSWORD
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}
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}));
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const mailOptions =
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{
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to: "jeffery@jrtechs.net", // list of receivers
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subject: "Jrtechs.net form submission", // Subject line
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text: message, // plaintext body
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html: message
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};
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// send mail with defined transport object
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transporter.sendMail(mailOptions, function(error, response)
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{
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if(error)
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{
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console.log(error);
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}
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else
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{
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console.log("Message sent: " + response);
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}
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transporter.close(); // shut down the connection pool, no more messages
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});
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};
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/**
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* If there was post data on the contact page, it processes it to see
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* if it was a valid captcha request and sends an email. If no post data was sent,
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* the normal form is displayed
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*
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* @param request -- main express request
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* @returns {Promise} renders the html of the contact widget
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*/
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const processContactPage = function(request)
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{
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return new Promise(function(resolve, reject)
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{
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utils.getPostData(request).then(function(postData)
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{
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const data = qs.parse(postData);
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if(data.name &&
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data.email &&
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data["g-recaptcha-response"] &&
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data.message)
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{
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verifyCapcha(sanitizer.sanitize(data["g-recaptcha-response"]))
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.then(function(valid)
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{
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if(valid)
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{
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resolve(utils.include("includes/html/messageSent.html"));
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sendEmail(data.name, data.email, data.message);
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}
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else
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{
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resolve(utils.include("includes/html/invalidCaptcha.html"));
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}
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});
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}
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else
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{
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resolve(utils.include("includes/html/contact.html"));
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}
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}).catch(function(err)
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{
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reject(err);
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})
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});
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};
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module.exports =
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{
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/**
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* Displays the contact page along with the header, sidebar, and footer.
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* This uses the admin header because it doesn't need any minified css
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* which has been purged of some css classes which are not used in any
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* of the blog posts.
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*
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* @param request -- main express request
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* @param result -- renders the html of the contact page
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*/
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main: function(request, result)
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{
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console.log("fuck me");
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result.writeHead(200, {'Content-Type': 'text/html'});
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Promise.all([includes.printAdminHeader(),
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processContactPage(request),
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require("../sidebar/sidebar.js").main(),
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includes.printFooter()]).then(function(content)
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{
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result.write(content.join(''));
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result.end();
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}).catch(function(err)
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{
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console.log(err);
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});
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}
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};
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