Ghost/core/frontend/services/routing/middlewares/page-param.js
Hannah Wolfe 829e8ed010 Expanded requires of lib/common i18n and events
- Having these as destructured from the same package is hindering refactoring now
- Events should really only ever be used server-side
- i18n should be a shared module for now so it can be used everywhere until we figure out something better
- Having them seperate also allows us to lint them properly
2021-05-03 17:14:52 +01:00

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JavaScript

const i18n = require('../../../../server/lib/common/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();
}
};