NodeBB/NodeBB

'use strict';

const nconf = require('nconf');
const winston = require('winston');
const validator = require('validator');

const meta = require('../meta');
const plugins = require('../plugins');
const middleware = require('../middleware');
const helpers = require('../middleware/helpers');

exports.handle404 = helpers.try(async (req, res) => {
    const relativePath = nconf.get('relative_path');
    const isClientScript = new RegExp(`^${relativePath}\\/assets\\/src\\/.+\\.js(\\?v=\\w+)?$`);

    if (plugins.hooks.hasListeners('action:meta.override404')) {
        return plugins.hooks.fire('action:meta.override404', {
            req: req,
            res: res,
            error: {},
        });
    }

    if (isClientScript.test(req.url)) {
        res.type('text/javascript').status(404).send('Not Found');
    } else if (
        !res.locals.isAPI && (
            req.path.startsWith(`${relativePath}/assets/uploads`) ||
            (req.get('accept') && !req.get('accept').includes('text/html')) ||
            req.path === '/favicon.ico'
        )
    ) {
        meta.errors.log404(req.path || '');
        res.sendStatus(404);
    } else if (req.accepts('html')) {
        if (process.env.NODE_ENV === 'development') {
            winston.warn(`Route requested but not found: ${req.url}`);
        }

        meta.errors.log404(req.path.replace(/^\/api/, '') || '');
        await exports.send404(req, res);
    } else {
        res.status(404).type('txt').send('Not found');
    }
});

exports.send404 = helpers.try(async (req, res) => {
    res.status(404);
    const path = String(req.path || '');
    if (res.locals.isAPI) {
        return res.json({
            path: validator.escape(path.replace(/^\/api/, '')),
            title: '[[global:404.title]]',
            bodyClass: helpers.buildBodyClass(req, res),
        });
    }
    const icons = [
        'fa-hippo', 'fa-cat', 'fa-otter',
        'fa-dog', 'fa-cow', 'fa-fish',
        'fa-dragon', 'fa-horse', 'fa-dove',
    ];
    await middleware.buildHeaderAsync(req, res);
    res.render('404', {
        path: validator.escape(path),
        title: '[[global:404.title]]',
        bodyClass: helpers.buildBodyClass(req, res),
        icon: icons[Math.floor(Math.random() * icons.length)],
    });
});