errorHandler.js

'use strict';

var exception = require('../lib/exception');
var logger = require('../lib/logger');
var config = require('../lib/config');

/*jshint maxparams: false, unused: false */
module.exports = function (err, req, res, next) {
    if (req.path.indexOf('/' + config.get('view').staticUrl) === 0) {
        res.send(500, err);
        return;
    }

    if (err.stack) {
        logger.error(err.stack);
    }

    if (err instanceof exception.LOGIN_CONFLICT) {
        res.status(406);
        return res.redirect('/error/login-conflict');
    }

    if (err instanceof exception.NOT_FOUND) {
        res.status(404);
        return res.render('common/page/error/404');
    }

    if (err instanceof exception.REQUEST_ERROR) {
        res.status(err.code);
        return res.render('common/page/error/400', {
            code: err.code
        });
    }

    if (err instanceof exception.UNAUTHORIZED) {
        res.status(401);
        return res.render('common/page/error/400', {
            code: 401
        });
    }

    res.status(500);
    return res.render('common/page/error/500');
};