NodeBB/NodeBB

'use strict';

const winston = require('winston');
const validator = require('validator');
const slugify = require('../slugify');

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

const helpers = module.exports;

helpers.try = function (middleware) {
    if (middleware && middleware.constructor && middleware.constructor.name === 'AsyncFunction') {
        return async function (req, res, next) {
            try {
                await middleware(req, res, next);
            } catch (err) {
                next(err);
            }
        };
    }
    return function (req, res, next) {
        try {
            middleware(req, res, next);
        } catch (err) {
            next(err);
        }
    };
};

helpers.buildBodyClass = function (req, res, templateData = {}) {
    const clean = req.path.replace(/^\/api/, '').replace(/^\/|\/$/g, '');
    const parts = clean.split('/').slice(0, 3);
    parts.forEach((p, index) => {
        try {
            p = slugify(decodeURIComponent(p));
        } catch (err) {
            winston.error(`Error decoding URI: ${p}`);
            winston.error(err.stack);
            p = '';
        }
        p = validator.escape(String(p));
        parts[index] = index ? `${parts[0]}-${p}` : `page-${p || 'home'}`;
    });
    const { template } = templateData;
    if (template) {
        parts.push(`template-${template.name.split('/').join('-')}`);
    }

    if (template && template.topic) {
        parts.push(`page-topic-category-${templateData.category.cid}`);
        parts.push(`page-topic-category-${slugify(templateData.category.name)}`);
    }

    if (template && template.chats && templateData.roomId) {
        parts.push(`page-user-chats-${templateData.roomId}`);
    }

    if (Array.isArray(templateData.breadcrumbs)) {
        templateData.breadcrumbs.forEach((crumb) => {
            if (crumb && crumb.hasOwnProperty('cid')) {
                parts.push(`parent-category-${crumb.cid}`);
            }
        });
    }

    if (templateData && templateData.bodyClasses) {
        parts.push(...templateData.bodyClasses);
    }

    parts.push(`page-status-${res.statusCode}`);

    parts.push(`theme-${(meta.config['theme:id'] || '').split('-')[2]}`);

    if (req.loggedIn) {
        parts.push('user-loggedin');
    } else {
        parts.push('user-guest');
    }
    return parts.join(' ');
};