expressCart/routes/common.js

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const _ = require('lodash');
const uglifycss = require('uglifycss');
const colors = require('colors');
const lunr = require('lunr');
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const cheerio = require('cheerio');
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const fs = require('fs');
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const path = require('path');
const glob = require('glob');
const async = require('async');
const nodemailer = require('nodemailer');
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const escape = require('html-entities').AllHtmlEntities;
let ObjectId = require('mongodb').ObjectID;
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// common functions
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exports.checkLogin = (req, res, next) => {
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// 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');
};
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exports.showCartCloseBtn = (page) => {
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let showCartCloseButton = true;
if(page === 'checkout' || page === 'pay'){
showCartCloseButton = false;
}
return showCartCloseButton;
};
// adds products to sitemap.xml
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exports.addSitemapProducts = (req, res, cb) => {
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let db = req.app.db;
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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);
});
});
};
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exports.restrict = (req, res, next) => {
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exports.checkLogin(req, res, next);
};
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exports.clearSessionValue = (session, sessionVar) => {
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let temp;
if(session){
temp = session[sessionVar];
session[sessionVar] = null;
}
return temp;
};
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exports.updateTotalCartAmount = (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;
}
};
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exports.checkDirectorySync = (directory) => {
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try{
fs.statSync(directory);
}catch(e){
fs.mkdirSync(directory);
}
};
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exports.getThemes = () => {
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return fs.readdirSync(path.join('public', 'themes')).filter(file => fs.statSync(path.join(path.join('public', 'themes'), file)).isDirectory());
};
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exports.getImages = (dir, req, res, callback) => {
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let db = req.app.db;
db.products.findOne({_id: exports.getId(dir)}, (err, product) => {
if(err){
console.error(colors.red('Error getting images', err));
}
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// loop files in /public/uploads/
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glob('public/uploads/' + product.productPermalink + '/**', {nosort: true}, (er, files) => {
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// 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);
});
});
};
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exports.getConfig = () => {
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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;
};
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exports.getPaymentConfig = () => {
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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;
};
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exports.updateConfig = (fields) => {
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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;
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}else{
settingsFile['menuEnabled'] = true;
}
if(fields['emailPort']){
settingsFile['emailPort'] = parseInt(fields['emailPort']);
}
if(fields['flatShipping']){
settingsFile['flatShipping'] = parseInt(fields['flatShipping']);
}
if(fields['freeShippingAmount']){
settingsFile['freeShippingAmount'] = parseInt(fields['freeShippingAmount']);
}
if(fields['productsPerRow']){
settingsFile['productsPerRow'] = parseInt(fields['productsPerRow']);
}
if(fields['productsPerPage']){
settingsFile['productsPerPage'] = parseInt(fields['productsPerPage']);
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}
// write file
try{
fs.writeFileSync(path.join(__dirname, '../config/settings.json'), JSON.stringify(settingsFile, null, 4));
return true;
}catch(exception){
return false;
}
};
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exports.getMenu = (db) => {
return db.menu.findOne({});
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};
// creates a new menu item
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exports.newMenu = (req, res) => {
const db = req.app.db;
return exports.getMenu(db)
.then((menu) => {
// if no menu present
if(!menu){
menu = {};
menu.items = [];
}
let newNav = {
title: req.body.navMenu,
link: req.body.navLink,
order: Object.keys(menu.items).length + 1
};
menu.items.push(newNav);
return db.menu.updateOne({}, {$set: {items: menu.items}}, {upsert: true})
.then(() => {
return true;
});
})
.catch((err) => {
console.log('Error creating new menu', err);
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return false;
});
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};
// delete a menu item
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exports.deleteMenu = (req, res, menuIndex) => {
const db = req.app.db;
return exports.getMenu(db)
.then((menu) => {
// Remove menu item
menu.items.splice(menuIndex, 1);
return db.menu.updateOne({}, {$set: {items: menu.items}}, {upsert: true})
.then(() => {
return true;
});
})
.catch(() => {
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return false;
});
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};
// updates and existing menu item
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exports.updateMenu = (req, res) => {
const db = req.app.db;
return exports.getMenu(db)
.then((menu) => {
// find menu item and update it
let menuIndex = _.findIndex(menu.items, ['title', req.body.navId]);
menu.items[menuIndex].title = req.body.navMenu;
menu.items[menuIndex].link = req.body.navLink;
return db.menu.updateOne({}, {$set: {items: menu.items}}, {upsert: true})
.then(() => {
return true;
});
})
.catch(() => {
return false;
});
};
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exports.sortMenu = (menu) => {
if(menu && menu.items){
menu.items = _.sortBy(menu.items, 'order');
return menu;
}
return{};
};
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// orders the menu
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exports.orderMenu = (req, res) => {
const db = req.app.db;
return exports.getMenu(db)
.then((menu) => {
// update the order
for(let i = 0; i < req.body.navId.length; i++){
_.find(menu.items, ['title', req.body.navId[i]]).order = i;
}
return db.menu.updateOne({}, {$set: {items: menu.items}}, {upsert: true})
.then(() => {
return true;
});
})
.catch(() => {
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return false;
});
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};
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exports.getEmailTemplate = (result) => {
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let config = this.getConfig();
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();
};
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exports.sendEmail = (to, subject, body) => {
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let config = this.getConfig();
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;
});
};
// gets the correct type of index ID
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exports.getId = (id) => {
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if(id){
if(id.length !== 24){
return id;
}
}
return ObjectId(id);
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};
// run the DB query
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exports.dbQuery = (db, query, sort, limit, callback) => {
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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.getData = (req, page, query) => {
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let db = req.app.db;
let config = exports.getConfig();
let numberProducts = config.productsPerPage ? config.productsPerPage : 6;
let skip = 0;
if(page > 1){
skip = (page - 1) * numberProducts;
}
query['productPublished'] = 'true';
// Run our queries
return Promise.all([
db.products.find(query).skip(skip).limit(parseInt(numberProducts)).toArray(),
db.products.count(query)
])
.then((result) => {
const returnData = {data: result[0], totalProducts: result[1]};
return returnData;
})
.catch((err) => {
throw new Error('Error retrieving products');
});
};
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exports.indexProducts = (app) => {
// index all products in lunr on startup
return new Promise((resolve, reject) => {
app.db.products.find({}).toArray((err, productsList) => {
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if(err){
console.error(colors.red(err.stack));
reject(err);
}
// setup lunr indexing
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const productsIndex = lunr(function(){
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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.indexCustomers = (app) => {
// index all products in lunr on startup
return new Promise((resolve, reject) => {
app.db.customers.find({}).toArray((err, customerList) => {
if(err){
console.error(colors.red(err.stack));
reject(err);
}
// setup lunr indexing
const customersIndex = lunr(function(){
this.field('email', {boost: 10});
this.field('name', {boost: 5});
this.field('phone');
const lunrIndex = this;
// add to lunr index
customerList.forEach((customer) => {
let doc = {
'email': customer.email,
'name': `${customer.firstName} ${customer.lastName}`,
'phone': customer.phone,
'id': customer._id
};
lunrIndex.add(doc);
});
});
app.customersIndex = customersIndex;
console.log(colors.cyan('- Customer indexing complete'));
resolve();
});
});
};
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exports.indexOrders = (app, cb) => {
// index all orders in lunr on startup
return new Promise((resolve, reject) => {
app.db.orders.find({}).toArray((err, ordersList) => {
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if(err){
console.error(colors.red('Error setting up products index: ' + err));
reject(err);
}
// setup lunr indexing
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const ordersIndex = lunr(function(){
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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),
exports.indexCustomers(app)
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])
.catch((err) => {
process.exit(2);
});
};
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exports.testData = (db, app) => {
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db.products.count({})
.then((products) => {
if(products > 0){
return Promise.resolve();
}
console.info(colors.cyan('No products, inserting test data'));
const testData = fs.readFileSync('./bin/testdata.json', 'utf-8');
const jsonData = JSON.parse(testData);
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return Promise.all([
db.products.insertMany(jsonData.products),
db.menu.insertOne(jsonData.menu),
exports.runIndexing(app)
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])
.catch((err) => {
console.info(colors.red('Error inserting test data. Check `/bin/testdata.json` is correctly formatted.', err));
process.exit(2);
});
});
};