lots of fixes and more EJS
This commit is contained in:
389
src/server.js
Normal file
389
src/server.js
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// Get the libraries
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const fs = require('fs'); // For modifying and reading files
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const express = require('express'); // For running a webserver in nodejs
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const showdown = require('showdown') // For converting markdown to html on demand, https://showdownjs.com/
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const crypto = require('crypto'); // For encrypting passwords, I use sha512
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// fromUnixTime(): Create a date from a Unix timestamp (in seconds). Decimal values will be discarded.
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// format(): Return the formatted date string in the given format. The result may vary by locale.
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// getUnixTime(): Get the seconds timestamp of the given date.
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// find out more at https://date-fns.org/ \or docs: https://date-fns.org/docs/Getting-Started
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const { fromUnixTime, format, getUnixTime } = require("date-fns") // A date utility library
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const ejs = require("ejs")
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const func = require("./functions.js")
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const init = require("./initialise.js")
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// There's only one possible argument, so we can just check if the user passed that one
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// TODO I plan on adding more such as --help and --post so I should make this more robust at some point
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if (process.argv[2] == "--first-time") {
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init.initialise() // Creates any files such users.js, posts.js, comments.js or config.js if they are not present
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}
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// Define the modules now so they are global
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let users // contains a list of users, each user is an object containing username,prettyname,hash and description
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let posts // contains a list of posts,
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let comments // contains a list of comments
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let config // contains a set of configuration for the site, see example-config.js for an example
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try {
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// We're going to try and import the modules,
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users = require('../data/users.json');
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posts = require('../data/posts.json');
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comments = require('../data/comments.json');
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config = require('../config.json');
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}
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catch (error) {
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// if they don't all import then
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// inform the user to pass --first-time and exit with an error code
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console.log("A file is missing!")
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console.log("Run with --first-time to initialise the program")
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console.log(error)
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process.exit(1)
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}
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// https://showdownjs.com/docs/available-options
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let converter = new showdown.Converter({
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simpleLineBreaks: true, // Parse line breaks as <br/> in paragraphs (GitHub-style behavior).
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tables: true, // Enable support for tables syntax.
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strikethrough: true, // Enable support for strikethrough: ~~text~~
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tasklists: true, // Enable support for GitHub style tasklists. - [x] and - [ ]
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encodeEmails: true, //Enable automatic obfuscation of email addresses. emails are encoded via character entities
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headerLevelStart: 3, //Set starting level for the heading tags.
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})
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// Define stuff to do with express (nodejs webserver)
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const app = express();
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app.use(express.urlencoded({ extended: true }));
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app.use(express.json());
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app.use(express.static(config.root_path));
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// set the view engine to ejs
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app.set('view engine', 'ejs');
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app.set('views', '../views')
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////////////////////// SYNDICATION ////////////////////////
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// RSS protocol gets
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app.get(config.rss_url, (req,res) => {
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if (config.rss == false) {
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res.render("partials/message", {
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message: config.string.rss_disabled,
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config: config,
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})
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}
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else {
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let rss_content = `<?xml version="1.0" encoding="UTF-8" ?>
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<rss version="2.0">
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<channel>
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<title>${config.site_name}</title>
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<link>${config.site_url}</link>
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<description>${config.site_description}</description>
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`
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for (let i = posts.length-1; i >= 0; i--) {
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rss_content += `
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<item>
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<title>${posts[i]["title"]}</title>
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<link>${config.site_url}/post/${i}</link>
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<description><![CDATA[${converter.makeHtml(posts[i]["content"])}]]></description>
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<guid isPermaLink="true">${config.site_url}/post/${i}</guid>
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<pubDate>${func.unix_time_to_rss_date(posts[i]['pubdate'])}</pubDate>`
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for (let j = 0; j < posts[i]['tags'].length; j++) {
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rss_content += `<category><![CDATA[${posts[i]['tags'][j]}]]></category>`
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};
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rss_content += "</item>"
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}
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rss_content += `
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</channel>
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</rss>`
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res.setHeader('content-type', 'application/rss+xml');
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res.send(rss_content)
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};
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});
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///////////////////// Standard Pages //////////////////////
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app.get("/", (req,res) => {
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// Increment the hitcount
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if (config.enable_hitcount) {
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let hitcount = parseInt(fs.readFileSync('../data/hitcount.txt'))
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hitcount += 1
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console.log(`/ Is loaded, hitcount: ${hitcount}`)
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fs.writeFileSync(`../data/hitcount.txt`, `${hitcount}`, 'utf-8');
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}
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res.render("pages/timeline",
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{
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config,
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posts,
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users,
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comments: comments.comments,
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hitcount: fs.readFileSync("../data/hitcount.txt"),
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fromUnixTime,
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format,
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getUnixTime,
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func,
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})
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}); // /
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app.get("/user/:username", (req, res) => {
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const userID = func.get_userID(req.params.username)
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console.log(userID)
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console.log(users[userID].prettyname)
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res.render("pages/user",
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{
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config: config,
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posts: posts,
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user: users[userID],
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userID: userID,
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comments: comments.comments,
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fromUnixTime: fromUnixTime,
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format: format,
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getUnixTime: getUnixTime,
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func,
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})
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}); // /user/:username
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app.get("/post/:post_index", (req, res) => {
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const postID = req.params.post_index
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res.render("pages/post",
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{
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config,
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post: posts[postID],
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postID: postID,
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user: users[posts[postID].userID],
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comments: comments.comments[postID],
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fromUnixTime,
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format,
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getUnixTime,
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func,
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})
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}); // /post/:post_index
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app.get("/tag/:tag", (req,res) => {
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const tag = req.params.tag
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res.render("pages/tag",
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{
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config: config,
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tag: tag,
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posts: posts,
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users: users,
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comments: comments.comments,
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fromUnixTime: fromUnixTime,
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format: format,
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getUnixTime: getUnixTime,
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func,
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})
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}); // /tag/:tag
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///////////////////// Form pages ////////////////////////////
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app.get(config.new_post_url, (req,res) => {
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res.render("forms/new_post", {
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config
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});
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}); // /post
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app.get(config.signup_url, (req,res) => {
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// if the server does allow signup
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if (config.allow_signup == true) {
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// Send the page for signing up to the server
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res.render("forms/signup", {
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config
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});
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}
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// if the server does not allow signup
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else if (config.allow_signup == false) {
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res.render("partials/message", {
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message: config.string.signups_unavailable,
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config,
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})
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}
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// If allow_signup is undefined or not a boolean, error
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else {
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res.redirect(301,"/")
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console.log("Error, invalid value for allow_signup (bool)")
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}
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}); // /signup
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app.get(config.delete_account_url, (req,res) => {
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res.render("forms/delete_account", { config });
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}); // /delete_account
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app.get(`${config.edit_post_base_url}/:post_id`, (req,res) => {
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const post_id = req.params.post_id
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const post = posts[post_id]
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const user = users[post['userID']]
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res.render("forms/edit_post", {
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config,
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post,
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post_id,
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user,
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});
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}); // /edit/:post_id
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////////////////////// Form actions /////////////////////////
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app.post("/submit_comment", (req,res) => {
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const unix_timestamp = getUnixTime(new Date())
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let name = func.escape_input(req.body.name)
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if (name == "") {
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name = config.default_commenter_username
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}
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new_comment = {
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"name": name,
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"content": func.escape_input(req.body.content),
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"id": comments.counter,
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"pubdate": unix_timestamp
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};
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let counter = comments.counter+1;
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comments.comments[req.body.post_index].push(new_comment);
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fs.writeFileSync(`../data/comments.json`, `${JSON.stringify(comments)}`, 'utf-8');
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res.redirect(301,`/post/${req.body.post_index}`)
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}); // /submit_comment
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app.post("/submit_post", (req,res) => {
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const password = crypto.createHash('sha512').update(req.body.password).digest('hex');
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const username = func.escape_input(req.body.username)
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const title = func.escape_input(req.body.title)
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const content = func.escape_input(req.body.content)
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const tags = func.escape_input(req.body.tags).split(',');
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const unix_timestamp = getUnixTime(new Date())
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if (func.get_userID(username) == -1) {
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res.render("partials/message", {
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message: config.string.user_doesnt_exit,
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config,
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})
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}
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else if (users[func.get_userID(username)]['hash'] == password) { // Password matches
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console.log(username, "is submitting a post titled:", title);
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posts.push({
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"userID": func.get_userID(username),
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"title": title,
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"content": content,
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"pubdate": unix_timestamp,
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"editdate": unix_timestamp,
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"tags": tags,
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})
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fs.writeFileSync(`../data/posts.json`, `${JSON.stringify(posts)}`, 'utf-8');
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comments.comments.push([])
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fs.writeFileSync(`../data/comments.json`, `${JSON.stringify(comments)}`)
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res.redirect(302, "/");
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}
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else {
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res.render("partials/message", {
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message: config.string.incorrect_password,
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config,
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})
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}
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}); // /submit_post
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app.post("/submit_signup", (req,res) => {
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const password = crypto.createHash('sha512').update(req.body.password).digest('hex');
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const username = func.escape_input(req.body.username)
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const prettyname = func.escape_input(req.body.prettyname)
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const description = func.escape_input(req.body.description)
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// Check that signups are allowed
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if (config.allow_signup == true) {
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// func.get_userID will return -1 if the user does not exist
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// so this checks that the user does not exist
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if (func.get_userID(username) == -1) {
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users.push({
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"username": username,
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"prettyname": prettyname,
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"hash": password,
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"description": description,
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})
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fs.writeFileSync(`../data/users.json`, `${JSON.stringify(users)}`, 'utf-8');
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res.redirect(301, `/user/${username}`)
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}
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// if the user does exist then
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else {
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res.render("partials/message", {
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message: config.string.user_exists,
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config,
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})
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}
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}
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else if (config.allow_signup == false) {
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res.render("partials/message", {
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message: config.string.signups_unavailable,
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config,
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})
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}
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// If allow_signup is undefined or not a boolean, error
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else {
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res.redirect(301,"/")
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console.log("Error, invalid value for allow_signup (bool)")
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}
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}); // /submit_signup
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app.post("/submit_delete_account", (req,res) => {
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// Get the form info
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const password = crypto.createHash("sha512").update(req.body.password).digest("hex");
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const username = func.escape_input(req.body.username)
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// get the userID
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const userID = func.get_userID(username)
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if (userID >= 0) { // The user exists
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if (password == users[userID]['hash']) { // password matches
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console.log(username, "(userID:", userID, ") is trying deleting their account")
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// Delete the user
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users.splice(userID,1)
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// Delete all their posts
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for (let postid = 0; postid < posts.length; postid++) { // loop over all posts
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if (posts[postid]['userID'] == userID) { // if userID matches
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posts.splice(postid,1) // delete the post
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comments.comments.splice(postid,1) // the comments for this post should also be delete
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}
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};
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// Write these changes
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fs.writeFileSync(`../data/users.json`, `${JSON.stringify(users)}`, 'utf-8');
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fs.writeFileSync(`../data/posts.json`, `${JSON.stringify(posts)}`, 'utf-8');
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fs.writeFileSync(`../data/comments.json`, `${JSON.stringify(comments.comments)}\nexport const counter = ${comments.counter}`, 'utf-8');
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res.redirect(301,"/")
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}
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else { // password does not match
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res.render("partials/message", {
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message: config.string.incorrect_password,
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config
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}
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)
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};
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}
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else {
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res.render("partials/message", {
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message: config.string.user_doesnt_exist,
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config,
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})
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}
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}); // /submit_delete_account
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app.post("/submit_edit", (req,res) => {
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const password = crypto.createHash('sha512').update(req.body.password).digest('hex');
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const postID = req.body.postID
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const userID = req.body.userID
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const title = req.body.title
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const content = req.body.content
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const tags = req.body.tags.split(',');
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const delete_bool = req.body.delete
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const unix_timestamp = getUnixTime(new Date())
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console.log(users[userID]['prettyname'], "is editting the post titled:", title);
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if (users[userID]['hash'] == password) { // password matches
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let post = posts[postID]
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post['title'] = title
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post['content'] = content
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post['tags'] = tags
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post['editdate'] = unix_timestamp
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if (typeof delete_bool != "undefined") {
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console.log("Deleting post!")
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posts.splice(postID,1)
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comments.comments.splice(postID,1)
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fs.writeFileSync(`../data/comments.json`, `${JSON.stringify(comments.comments)}\nexport const counter = ${comments.counter}`, 'utf-8');
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}
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fs.writeFileSync(`../data/posts.json`, `${JSON.stringify(posts)}`, 'utf-8');
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res.redirect(302, "/");
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}
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else {
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res.render("partials/message", {
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message: config.string.incorrect_password,
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config,
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})
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}
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}); // /submit_edit
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app.listen(config.port, () => {
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console.log(`Server is running at http://localhost:${config.port} webroot: ${config.root_path}`);
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console.log("Running in: ", __dirname)
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});
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Reference in New Issue
Block a user