Ghost/core/frontend/services/routing/middlewares/page-param.js
Hannah Wolfe 273e220327 Moved i18n to shared
refs 829e8ed010

- i18n is used everywhere but only requires shared or external packages, therefore it's a good candidate for living in shared
- this reduces invalid requires across frontend and server, and lets us use it everywhere until we come up with a better option
2021-05-04 13:03:38 +01:00

31 lines
974 B
JavaScript

const i18n = require('../../../../shared/i18n');
const errors = require('@tryghost/errors');
const urlUtils = require('../../../../shared/url-utils');
/**
* @description Middleware, which validates and interprets the page param e.g. /page/1
* @param {Object} req
* @param {Object} res
* @param {Function} next
* @param {Number} page
* @returns {*}
*/
module.exports = function handlePageParam(req, res, next, page) {
// routeKeywords.page: 'page'
const pageRegex = new RegExp('/page/(.*)?/');
page = parseInt(page, 10);
if (page === 1) {
// CASE: page 1 is an alias for the collection index, do a permanent 301 redirect
return urlUtils.redirect301(res, req.originalUrl.replace(pageRegex, '/'));
} else if (page < 1 || isNaN(page)) {
return next(new errors.NotFoundError({
message: i18n.t('errors.errors.pageNotFound')
}));
} else {
req.params.page = page;
return next();
}
};