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