Node Code Injection for HTML5/FTP website. Requires Backup of original for resets. Made for ZipMoney.

htmlinjector.js

import fs from 'fs';
import finder from 'fs-finder';
import cheerio from 'cheerio';
import colors from 'colors';
import S from 'string';

//To refresh target folder, rm -rf target, mkdir target, cp -a backup/. target
// npm Script: "reset": "rm -rf target && mkdir target && cp -a backup/. target"   -> npm run reset

console.log('Starting node Widgeter Script...'.green);

finder.from('./target/').findFiles('*.html', files => {
  files.forEach(file => {
      fs.readFile(file, 'utf8', (err, data) => {
        if(err){
          console.log(err);
          return;
        }
        //console.log(file);

        let $ = cheerio.load(data);

        if($('#mainmenu').length){
          $('<li></li>')
            .attr({'class': 'menu-item current-menu-ancestor'})
            .html('<a href="zippay.html">Interest Free</a>')
            .insertAfter('#mainmenu > li:nth-child(4)');
        }

        //Go through all pages but only do the below if they are the product pages.
        if(file.indexOf('sup-range-') > -1){
          const price = () => {
            const ele = $('.sc_toggles_content').find(' > p > strong:nth-child(1)');
            const price = S(ele.text()).between('$', 'P').s;
            console.log(`Price: ${price || 20} | File: ${file}`);
            return price || '20';
          };
          $('head').append(`
            <!-- Zipmoney inclusion. -->
            <script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
            <script type="text/javascript" src="//d3k1w8lx8mqizo.cloudfront.net/lib/js/zm-widget-js/dist/zipmoney-widgets-v1.min.js"></script>
            <style>
              .zipmoney-widget-wrapper{
                margin: -20px 0 20px 0
              }
              .zip-hover{
                display: inline-block !important;
                margin-left:5px;
                vertical-align:0px;
              }
            </style>
          `);
          $('<div></div>').attr({class: 'zipmoney-widget-wrapper'}).html(`
              <div data-zm-merchant="*YOUR_ZIPMONEY_UNIQUE_ID*" data-env="production"></div>
              <a
                id="shopify-prod-calc"
                data-zm-widget="repaycalc"
                data-zm-amount="${price()}"
                data-zm-logo="https://d3k1w8lx8mqizo.cloudfront.net/INTEGRATIONS/2016/zippay/logos/zippay-grey-black.png"></a>
              <a id="zip-learnmore" class="zip-hover" zm-widget="popup" zm-popup-asset="termsdialog" style="display:inline-block;cursor: pointer;">Learn More</a>
            `).insertAfter('.post_author_title');
        }

        //Perma save changes.
        fs.writeFile (file, $.html(), function(err) {
            if(err){
              console.log(err);
              return;
            }
            console.log(`${file}`.green);
        });
      });
  });
});