NodeBB/NodeBB

'use strict';

const db = require('../../database');
const meta = require('../../meta');

module.exports = {
    name: 'Generate customHTML block from old customJS setting',
    timestamp: Date.UTC(2017, 9, 12),
    method: function (callback) {
        db.getObjectField('config', 'customJS', (err, newHTML) => {
            if (err) {
                return callback(err);
            }

            let newJS = [];

            // Forgive me for parsing HTML with regex...
            const scriptMatch = /^<script\s?(?!async|deferred)?>([\s\S]+?)<\/script>/m;
            let match = scriptMatch.exec(newHTML);

            while (match) {
                if (match[1]) {
                    // Append to newJS array
                    newJS.push(match[1].trim());

                    // Remove the match from the existing value
                    newHTML = ((match.index > 0 ? newHTML.slice(0, match.index) : '') + newHTML.slice(match.index + match[0].length)).trim();
                }

                match = scriptMatch.exec(newHTML);
            }

            // Combine newJS array
            newJS = newJS.join('\n\n');

            // Write both values to config
            meta.configs.setMultiple({
                customHTML: newHTML,
                customJS: newJS,
            }, callback);
        });
    },
};