const _ = require('lodash'); const uglifycss = require('uglifycss'); const colors = require('colors'); const cheerio = require('cheerio'); const axios = require('axios'); const fs = require('fs'); const path = require('path'); const glob = require('glob'); const async = require('async'); const nodemailer = require('nodemailer'); const sanitizeHtml = require('sanitize-html'); const escape = require('html-entities').AllHtmlEntities; const mkdirp = require('mkdirp'); const ObjectId = require('mongodb').ObjectID; // Allowed mime types for product images const allowedMimeType = [ 'image/jpeg', 'image/png', 'image/gif', 'image/bmp', 'image/webp' ]; const fileSizeLimit = 10485760; // common functions const cleanHtml = (html) => { return sanitizeHtml(html); }; const mongoSanitize = (param) => { if(param instanceof Object){ for(const key in param){ if(/^\$/.test(key)){ delete param[key]; } } } return param; }; const safeParseInt = (param) => { if(param){ try{ return parseInt(param); }catch(ex){ return param; } }else{ return param; } }; const checkboxBool = (param) => { if(param && param === 'on'){ return true; } return false; }; const convertBool = (value) => { if(value === 'true' || value === true){ return true; } return false; }; const showCartCloseBtn = (page) => { let showCartCloseButton = true; if(page === 'checkout' || page === 'pay'){ showCartCloseButton = false; } return showCartCloseButton; }; // adds products to sitemap.xml const addSitemapProducts = (req, res, cb) => { const db = req.app.db; const config = getConfig(); const hostname = config.baseUrl; db.products.find({ productPublished: true }).toArray((err, products) => { const posts = []; if(err){ cb(null, posts); } async.eachSeries(products, (item, callback) => { const 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); }); }); }; const clearSessionValue = (session, sessionVar) => { let temp; if(session){ temp = session[sessionVar]; session[sessionVar] = null; } return temp; }; const updateTotalCartAmount = (req, res) => { const config = getConfig(); 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; } }; const updateSubscriptionCheck = (req, res) => { // If cart is empty if(!req.session.cart || req.session.cart.length === 0){ req.session.cartSubscription = null; return; } req.session.cart.forEach((item) => { if(item.productSubscription){ req.session.cartSubscription = item.productSubscription; }else{ req.session.cartSubscription = null; } }); }; const checkDirectorySync = (directory) => { try{ fs.statSync(directory); }catch(e){ try{ fs.mkdirSync(directory); }catch(err){ mkdirp.sync(directory);// error : directory & sub directories to be newly created } } }; const getThemes = () => { return fs.readdirSync(path.join(__dirname, '../', 'views', 'themes')).filter(file => fs.statSync(path.join(path.join(__dirname, '../', 'views', 'themes'), file)).isDirectory()); }; const getImages = async (id, req, res, callback) => { const db = req.app.db; const product = await db.products.findOne({ _id: getId(id) }); if(!product){ return[]; } // loop files in /public/uploads/ const files = await glob.sync(`public/uploads/${product._id.toString()}/**`, { nosort: true }); // sort array files.sort(); // declare the array of objects const fileList = []; // loop these files for(let i = 0; i < files.length; i++){ // only want files if(fs.lstatSync(files[i]).isDirectory() === false){ // declare the file object and set its values const file = { id: i, path: files[i].substring(6) }; if(product.productImage === files[i].substring(6)){ file.productImage = true; } // push the file object into the array fileList.push(file); } } return fileList; }; const getConfig = () => { let config = JSON.parse(fs.readFileSync(path.join(__dirname, '../config', 'settings.json'), 'utf8')); const localConfigFilePath = path.join(__dirname, '../config', 'settings-local.json'); // Check for local config file and merge with base settings if(fs.existsSync(localConfigFilePath)){ const localConfigFile = JSON.parse(fs.readFileSync(localConfigFilePath, 'utf8')); config = Object.assign(config, localConfigFile); } config.customCss = typeof config.customCss !== 'undefined' ? escape.decode(config.customCss) : null; config.footerHtml = typeof config.footerHtml !== 'undefined' ? escape.decode(config.footerHtml) : null; config.googleAnalytics = typeof config.googleAnalytics !== 'undefined' ? escape.decode(config.googleAnalytics) : null; // set the environment for files config.env = '.min'; if(process.env.NODE_ENV === 'development' || process.env.NODE_ENV === undefined){ config.env = ''; } // setup theme config.themeViews = ''; if(typeof config.theme === 'undefined' || config.theme === ''){ config.theme = 'Cloth'; // Default to Cloth theme } config.themeViews = '../views/themes/' + config.theme + '/'; // Override from env.yaml environment file Object.keys(config).forEach((configKey) => { if(process.env[configKey]){ config[configKey] = process.env[configKey]; } }); return config; }; const getPaymentConfig = () => { const siteConfig = getConfig(); const gateConfigFile = path.join(__dirname, '../config', `${siteConfig.paymentGateway}.json`); let config = []; if(fs.existsSync(gateConfigFile)){ config = JSON.parse(fs.readFileSync(gateConfigFile, 'utf8')); } // If a local config we combine the objects. Local configs are .gitignored const localConfig = path.join(__dirname, '../config', `${siteConfig.paymentGateway}-local.json`); if(fs.existsSync(localConfig)){ const localConfigObj = JSON.parse(fs.readFileSync(localConfig, 'utf8')); config = Object.assign(config, localConfigObj); } // Override from env.yaml environment file Object.keys(config).forEach((configKey) => { if(process.env[configKey]){ config[configKey] = process.env[configKey]; } }); return config; }; const updateConfig = (fields) => { const settingsFile = getConfig(); _.forEach(fields, (value, key) => { settingsFile[key] = value; if(key === 'customCss_input'){ settingsFile.customCss = escape.encode(uglifycss.processString(value)); } if(key === 'footerHtml_input'){ const footerHtml = typeof value !== 'undefined' || value === '' ? escape.encode(value) : ''; settingsFile.footerHtml = footerHtml; } if(key === 'googleAnalytics_input'){ const 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; } 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); } // If we have a local settings file (not git tracked) we loop its settings and save // and changes made to them. All other settings get updated to the base settings file. const localSettingsFile = path.join(__dirname, '../config', 'settings-local.json'); if(fs.existsSync(localSettingsFile)){ const localSettings = JSON.parse(fs.readFileSync(localSettingsFile)); _.forEach(localSettings, (value, key) => { if(fields[key]){ localSettings[key] = fields[key]; // Exists in local so remove from main settings file delete settingsFile[key]; } }); // Save our local settings try{ fs.writeFileSync(localSettingsFile, JSON.stringify(localSettings, null, 4)); }catch(exception){ console.log('Failed to save local settings file', exception); } } // write base settings file const baseSettingsFile = path.join(__dirname, '../config', 'settings.json'); try{ fs.writeFileSync(baseSettingsFile, JSON.stringify(settingsFile, null, 4)); return true; }catch(exception){ return false; } }; const updateConfigLocal = (field) => { const localSettingsFile = path.join(__dirname, '../config', 'settings-local.json'); try{ let localSettings = {}; if(fs.existsSync(localSettingsFile)){ localSettings = JSON.parse(fs.readFileSync(localSettingsFile)); } Object.assign(localSettings, field); fs.writeFileSync(localSettingsFile, JSON.stringify(localSettings, null, 4)); }catch(exception){ console.log('Failed to save local settings file', exception); } }; const getMenu = (db) => { return db.menu.findOne({}); }; // creates a new menu item const newMenu = (req) => { const db = req.app.db; return getMenu(db) .then((menu) => { // if no menu present if(!menu){ menu = {}; menu.items = []; } const 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); return false; }); }; // delete a menu item const deleteMenu = (req, menuIndex) => { const db = req.app.db; return 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(() => { return false; }); }; // updates and existing menu item const updateMenu = (req) => { const db = req.app.db; return getMenu(db) .then((menu) => { // find menu item and update it const 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; }); }; const sortMenu = (menu) => { if(menu && menu.items){ menu.items = _.sortBy(menu.items, 'order'); return menu; } return{}; }; // orders the menu const orderMenu = (req, res) => { const db = req.app.db; return 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(() => { return false; }); }; const getEmailTemplate = (result) => { const config = getConfig(); const 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(); }; const sendEmail = (to, subject, body) => { const config = getConfig(); const 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' }; } const transporter = nodemailer.createTransport(emailSettings); const 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 const getId = (id) => { if(id){ if(id.length !== 24){ return id; } } return ObjectId(id); }; const newId = () => { return new ObjectId(); }; const getData = (req, page, query) => { const db = req.app.db; const config = getConfig(); const numberProducts = config.productsPerPage ? config.productsPerPage : 6; let skip = 0; if(page > 1){ skip = (page - 1) * numberProducts; } if(!query){ query = {}; } query.productPublished = { $ne: false }; // Run our queries return Promise.all([ db.products.find(query).skip(skip).limit(parseInt(numberProducts)).toArray(), db.products.countDocuments(query) ]) .then((result) => { const returnData = { data: result[0], totalProducts: result[1] }; return returnData; }) .catch((err) => { throw new Error('Error retrieving products'); }); }; const hooker = (order) => { const config = getConfig(); return axios.post(config.orderHook, order, { responseType: 'application/json' }) .then((response) => { if(response.status === 200){ console.info('Successfully called order hook'); } }) .catch((err) => { console.log('Error calling hook:', err); }); }; module.exports = { allowedMimeType, fileSizeLimit, cleanHtml, mongoSanitize, safeParseInt, checkboxBool, convertBool, showCartCloseBtn, addSitemapProducts, clearSessionValue, updateTotalCartAmount, updateSubscriptionCheck, checkDirectorySync, getThemes, getImages, getConfig, getPaymentConfig, updateConfig, updateConfigLocal, getMenu, newMenu, deleteMenu, updateMenu, sortMenu, orderMenu, getEmailTemplate, sendEmail, getId, newId, getData, hooker };