expressCart/routes/common.js

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JavaScript
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const _ = require('lodash');
const uglifycss = require('uglifycss');
const colors = require('colors');
const lunr = require('lunr');
const escape = require('html-entities').AllHtmlEntities;
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// common functions
exports.checkLogin = function(req, res, next){
// if not protecting we check for public pages and don't checkLogin
if(req.session.needsSetup === true){
res.redirect('/setup');
return;
}
if(req.session.user){
next();
return;
}
res.redirect('/login');
};
exports.showCartCloseBtn = function(page){
let showCartCloseButton = true;
if(page === 'checkout' || page === 'pay'){
showCartCloseButton = false;
}
return showCartCloseButton;
};
// adds products to sitemap.xml
exports.addSitemapProducts = function(req, res, cb){
let db = req.app.db;
let async = require('async');
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let config = exports.getConfig();
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let hostname = config.baseUrl;
exports.dbQuery(db.products, {productPublished: 'true'}, null, null, (err, products) => {
let posts = [];
if(err){
cb(null, posts);
}
async.eachSeries(products, (item, callback) => {
let post = {};
let url = item._id;
if(item.productPermalink){
url = item.productPermalink;
}
post.url = hostname + '/' + url;
post.changefreq = 'weekly';
post.priority = 0.7;
posts.push(post);
callback(null, posts);
}, () => {
cb(null, posts);
});
});
};
exports.restrict = function(req, res, next){
exports.checkLogin(req, res, next);
};
exports.clearSessionValue = function(session, sessionVar){
let temp;
if(session){
temp = session[sessionVar];
session[sessionVar] = null;
}
return temp;
};
exports.updateTotalCartAmount = function(req, res){
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let config = exports.getConfig();
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req.session.totalCartAmount = 0;
_(req.session.cart).forEach((item) => {
req.session.totalCartAmount = req.session.totalCartAmount + item.totalItemPrice;
});
// under the free shipping threshold
if(req.session.totalCartAmount < config.freeShippingAmount){
req.session.totalCartAmount = req.session.totalCartAmount + parseInt(config.flatShipping);
req.session.shippingCostApplied = true;
}else{
req.session.shippingCostApplied = false;
}
};
exports.checkDirectorySync = function (directory){
let fs = require('fs');
try{
fs.statSync(directory);
}catch(e){
fs.mkdirSync(directory);
}
};
exports.getThemes = function (){
let fs = require('fs');
let path = require('path');
return fs.readdirSync(path.join('public', 'themes')).filter(file => fs.statSync(path.join(path.join('public', 'themes'), file)).isDirectory());
};
exports.getImages = function (dir, req, res, callback){
let db = req.app.db;
let glob = require('glob');
let fs = require('fs');
db.products.findOne({_id: exports.getId(dir)}, (err, product) => {
if(err){
console.error(colors.red('Error getting images', err));
}
// loop files in /public/uploads/
glob('public/uploads/' + dir + '/**', {nosort: true}, (er, files) => {
// sort array
files.sort();
// declare the array of objects
let fileList = [];
// loop these files
for(let i = 0; i < files.length; i++){
// only want files
if(fs.lstatSync(files[i]).isDirectory() === false){
// declare the file object and set its values
let file = {
id: i,
path: files[i].substring(6)
};
if(product.productImage === files[i].substring(6)){
file.productImage = true;
}
// push the file object into the array
fileList.push(file);
}
}
callback(fileList);
});
});
};
exports.getConfig = function(){
let fs = require('fs');
let path = require('path');
let config = JSON.parse(fs.readFileSync(path.join(__dirname, '../config', 'settings.json'), 'utf8'));
config.customCss = typeof config.customCss !== 'undefined' ? escape.decode(config.customCss) : null;
config.footerHtml = typeof config.footerHtml !== 'undefined' ? escape.decode(config.footerHtml) : null;
config.googleAnalytics = typeof config.googleAnalytics !== 'undefined' ? escape.decode(config.googleAnalytics) : null;
// set the environment for files
config.env = '.min';
if(process.env.NODE_ENV === 'development' || process.env.NODE_ENV === undefined){
config.env = '';
}
// setup theme
config.themeViews = '';
if(typeof config.theme !== 'undefined' && config.theme !== ''){
config.themeViews = '../public/themes/' + config.theme + '/';
}
// if db set to mongodb override connection with MONGODB_CONNECTION_STRING env var
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config.databaseConnectionString = process.env.MONGODB_CONNECTION_STRING || config.databaseConnectionString;
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return config;
};
exports.getPaymentConfig = function(){
let fs = require('fs');
let path = require('path');
let siteConfig = this.getConfig();
let config = [];
if(fs.existsSync(path.join(__dirname, '../config/' + siteConfig.paymentGateway + '.json'))){
config = JSON.parse(fs.readFileSync(path.join(__dirname, '../config/' + siteConfig.paymentGateway + '.json'), 'utf8'));
}
return config;
};
exports.updateConfig = function(fields){
let fs = require('fs');
let path = require('path');
let settingsFile = JSON.parse(fs.readFileSync(path.join(__dirname, '../config/settings.json'), 'utf8'));
_.forEach(fields, (value, key) => {
settingsFile[key] = value;
if(key === 'customCss_input'){
settingsFile['customCss'] = escape.encode(uglifycss.processString(value));
}
if(key === 'footerHtml_input'){
let footerHtml = typeof value !== 'undefined' || value === '' ? escape.encode(value) : '';
settingsFile['footerHtml'] = footerHtml;
}
if(key === 'googleAnalytics_input'){
let googleAnalytics = typeof value !== 'undefined' ? escape.encode(value) : '';
settingsFile['googleAnalytics'] = googleAnalytics;
}
});
// delete settings
delete settingsFile['customCss_input'];
delete settingsFile['footerHtml_input'];
delete settingsFile['googleAnalytics_input'];
if(fields['emailSecure'] === 'on'){
settingsFile['emailSecure'] = true;
}else{
settingsFile['emailSecure'] = false;
}
if(!fields['menuEnabled']){
settingsFile['menuEnabled'] = 'false';
}else{
settingsFile['menuEnabled'] = 'true';
}
// write file
try{
fs.writeFileSync(path.join(__dirname, '../config/settings.json'), JSON.stringify(settingsFile, null, 4));
return true;
}catch(exception){
return false;
}
};
exports.getMenu = function(){
let fs = require('fs');
let path = require('path');
let menuFile = JSON.parse(fs.readFileSync(path.join(__dirname, '../config/menu.json'), 'utf8'));
menuFile.items = _.sortBy(menuFile.items, 'order');
return menuFile;
};
// creates a new menu item
exports.newMenu = function(req, res){
let fs = require('fs');
let path = require('path');
let menuJson = '../config/menu.json';
let menuFile = require(menuJson);
let newNav = {
title: req.body.navMenu,
link: req.body.navLink,
order: Object.keys(menuFile.items).length + 1
};
// add new menu item
menuFile.items.push(newNav);
// write file
try{
fs.writeFileSync(path.join(__dirname, '../config/menu.json'), JSON.stringify(menuFile));
return true;
}catch(e){
return false;
}
};
// delete a menu item
exports.deleteMenu = function(req, res, menuIndex){
let fs = require('fs');
let path = require('path');
let menuJson = '../config/menu.json';
let menuFile = require(menuJson);
delete menuFile.items[menuIndex];
// write file
try{
fs.writeFileSync(path.join(__dirname, '../config/menu.json'), JSON.stringify(menuFile));
return true;
}catch(e){
return false;
}
};
// updates and existing menu item
exports.updateMenu = function(req, res){
let fs = require('fs');
let path = require('path');
let menuJson = '../config/menu.json';
let menuFile = require(menuJson);
// find menu item and update it
let menuIndex = _.findIndex(menuFile.items, ['title', req.body.navId]);
menuFile.items[menuIndex].title = req.body.navMenu;
menuFile.items[menuIndex].link = req.body.navLink;
// write file
try{
fs.writeFileSync(path.join(__dirname, '../config/menu.json'), JSON.stringify(menuFile));
return true;
}catch(e){
return false;
}
};
exports.getEmailTemplate = function(result){
let cheerio = require('cheerio');
let config = this.getConfig();
let fs = require('fs');
let path = require('path');
let template = fs.readFileSync(path.join(__dirname, '../public/email_template.html'), 'utf8');
$ = cheerio.load(template);
$('#brand').text(config.cartTitle);
$('#paymentResult').text(result.message);
if(result.paymentApproved === true){
$('#paymentResult').addClass('text-success');
}else{
$('#paymentResult').addClass('text-danger');
}
$('#paymentMessage').text('Thanks for shopping with us. We hope you will shop with us again soon.');
$('#paymentDetails').html(result.paymentDetails);
return $.html();
};
exports.sendEmail = function(to, subject, body){
let config = this.getConfig();
let nodemailer = require('nodemailer');
let emailSettings = {
host: config.emailHost,
port: config.emailPort,
secure: config.emailSecure,
auth: {
user: config.emailUser,
pass: config.emailPassword
}
};
// outlook needs this setting
if(config.emailHost === 'smtp-mail.outlook.com'){
emailSettings.tls = {ciphers: 'SSLv3'};
}
let transporter = nodemailer.createTransport(emailSettings);
let mailOptions = {
from: config.emailAddress, // sender address
to: to, // list of receivers
subject: subject, // Subject line
html: body// html body
};
transporter.sendMail(mailOptions, (error, info) => {
if(error){
return console.error(colors.red(error));
}
return true;
});
};
// orders the menu
exports.orderMenu = function(req, res){
let fs = require('fs');
let path = require('path');
let menuJson = '../config/menu.json';
let menuFile = require(menuJson);
// update the order
for(let i = 0; i < req.body.navId.length; i++){
_.find(menuFile.items, ['title', req.body.navId[i]]).order = i;
}
// write file
try{
fs.writeFileSync(path.join(__dirname, '../config/menu.json'), JSON.stringify(menuFile));
return true;
}catch(e){
return false;
}
};
// gets the correct type of index ID
exports.getId = function(id){
let ObjectID = require('mongodb').ObjectID;
if(id){
if(id.length !== 24){
return id;
}
}
return ObjectID(id);
};
// run the DB query
exports.dbQuery = function(db, query, sort, limit, callback){
if(sort && limit){
db.find(query).sort(sort).limit(parseInt(limit)).toArray((err, results) => {
if(err){
console.error(colors.red(err));
}
callback(null, results);
});
}else{
db.find(query).toArray((err, results) => {
if(err){
console.error(colors.red(err));
}
callback(null, results);
});
}
};
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exports.indexProducts = (app) => {
// index all products in lunr on startup
return new Promise((resolve, reject) => {
exports.dbQuery(app.db.products, {}, null, null, (err, productsList) => {
if(err){
console.error(colors.red(err.stack));
reject(err);
}
// setup lunr indexing
const productsIndex = lunr(function (){
this.field('productTitle', {boost: 10});
this.field('productTags', {boost: 5});
this.field('productDescription');
const lunrIndex = this;
// add to lunr index
productsList.forEach((product) => {
let doc = {
'productTitle': product.productTitle,
'productTags': product.productTags,
'productDescription': product.productDescription,
'id': product._id
};
lunrIndex.add(doc);
});
});
app.productsIndex = productsIndex;
console.log(colors.cyan('- Product indexing complete'));
resolve();
});
});
};
exports.indexOrders = (app, cb) => {
// index all orders in lunr on startup
return new Promise((resolve, reject) => {
exports.dbQuery(app.db.orders, {}, null, null, (err, ordersList) => {
if(err){
console.error(colors.red('Error setting up products index: ' + err));
reject(err);
}
// setup lunr indexing
const ordersIndex = lunr(function (){
this.field('orderEmail', {boost: 10});
this.field('orderLastname', {boost: 5});
this.field('orderPostcode');
const lunrIndex = this;
// add to lunr index
ordersList.forEach((order) => {
let doc = {
'orderLastname': order.orderLastname,
'orderEmail': order.orderEmail,
'orderPostcode': order.orderPostcode,
'id': order._id
};
lunrIndex.add(doc);
});
});
app.ordersIndex = ordersIndex;
console.log(colors.cyan('- Order indexing complete'));
resolve();
});
});
};
// start indexing products and orders
exports.runIndexing = (app) => {
console.info(colors.yellow('Setting up indexes..'));
return Promise.all([
exports.indexProducts(app),
exports.indexOrders(app)
])
.catch((err) => {
process.exit(2);
});
};