const utils = require('./utils'); const whiskers = require('whiskers'); const includes = require("../includes/includes"); const cache = require('memory-cache'); /** used to parse the request URL */ const url = require('url'); const TEMPLATE_FILE="blog/blogMain.html"; const PAGINATION_TEMPLATE_KEY = "paginationTemplate"; const PAGINATION_TEMPLATE_FILE = "blog/paginationBar.html"; module.exports = { /** * Displays 404 error to user * * @param result * @returns {*} */ print404: function(result) { includes.include("includes/html/404.html").then(function(html) { result.write(html); result.end(); }) }, constructAdminPage: function(request, result, templateFiller) { var templateContext = Object(); var promises = []; promises.push(includes.fetchTemplate("admin/adminMain.html")); promises.push(includes.printAdminHeader(templateContext)); promises.push(includes.printFooter(templateContext)); if(module.exports.loggedIn(request)) { templateContext.loggedIn = true; promises.push(templateFiller(templateContext)); } else { //login const clientAddress = (request.headers['x-forwarded-for'] || '').split(',')[0] || request.connection.remoteAddress; promises.push(require("../admin/login").main(request, clientAddress,templateContext)); } Promise.all(promises).then(function(content) { result.write(whiskers.render(content[0], templateContext)); result.end(); }).catch(function(err) { console.log(err); throw err; }); }, adminPostPageWithOutput: function(request, result, templateFiller) { utils.getPostData(request).then(function(postData) { var templateContext = Object(); var promises = []; promises.push(includes.fetchTemplate("admin/adminMain.html")); promises.push(includes.printAdminHeader(templateContext)); promises.push(includes.printFooter(templateContext)); if (module.exports.loggedIn(request)) { templateContext.loggedIn = true; promises.push(templateFiller(templateContext, postData)); } else { //login const clientAddress = (request.headers['x-forwarded-for'] || '').split(',')[0] || request.connection.remoteAddress; promises.push(require("../admin/login").main(request, clientAddress, templateContext)); } Promise.all(promises).then(function (content) { result.write(whiskers.render(content[0], templateContext)); result.end(); }).catch(function (err) { console.log(err); throw err; }); }); }, adminPostRoute: function(request, templateFiller) { return new Promise(function(resolve, reject) { utils.getPostData(request).then(function(postData) { templateFiller(postData).then(function() { resolve(); }) }).catch(function(e) { reject(e); }) }) }, loggedIn(request) { return(request.session && request.session.user); }, buildBlogPageWithURL: function(request, result, templateFiller, filename) { var page = request.query.page; if(typeof page == "undefined") page = 1; page = Number(page); const html = cache.get(filename + "?page=" + page); result.writeHead(200, {'Content-Type': 'text/html'}); if (html == null) { var templateContext = Object(); Promise.all([includes.fetchTemplate(TEMPLATE_FILE), includes.includeInObject(PAGINATION_TEMPLATE_KEY, templateContext, "templates/" + PAGINATION_TEMPLATE_FILE), includes.printHeader(templateContext), includes.printFooter(templateContext), templateFiller(filename, request, templateContext), require("../blog/sidebar.js").main(templateContext)]) .then(function (content) { const html = whiskers.render(content[0], templateContext); result.write(html); result.end(); cache.put(filename + "?page=" + page, html); }).catch(function (err) { cache.del(filename + "?page=" + page); module.exports.print404(result) }); } else { result.write(html); result.end(); } }, buildBlogPage: function(request, result, templateFiller) { var filename = url.parse(request.url, true).pathname; module.exports.buildBlogPageWithURL(request, result,templateFiller, filename); }, /** * Clears the memory cache. */ clearCache: function() { console.log("Blog cache cleared"); cache.clear(); }, buildPageWithTemplate: function(request, result, templateFiller, templateFile) { var templateContext = Object(); Promise.all([includes.include("templates/" + templateFile), includes.printHeader(templateContext), includes.printFooter(templateContext), require("../blog/sidebar.js").main(templateContext)]) .then(function (content) { const html = whiskers.render(content[0], templateContext); result.write(html); result.end(); }) } };