theforum/index.js
2022-01-17 10:51:36 +01:00

102 lines
3.6 KiB
JavaScript

const Express = require('express')
const bdb = require('bdb.js')
const posts = bdb.load('posts.json', 1)
const webname = 'TheForum'
const server = new Express()
server.set('view engine', 'ejs')
function replace(req, regex, repl) {
const url = req.url.replaceAll(regex, repl)
console.log(url)
const parsedUrl = new URL('http://localhost' + url)
req.url = url
req.originalUrl = url
req.path = parsedUrl.pathname
req.search = parsedUrl.search
req._parsedUrl = parsedUrl
const query = {}
for(const entry of parsedUrl.searchParams) {
query[entry[0]] = entry[1]
}
req.query = query
}
server.use(function replacer(req, res, next) {
replace(req, /^\/post\/([0-9]+)_?/g, '/post?id=$1')
replace(req, /^\/comment\/([0-9_]+)\/([0-9_]*)(\?(.*))?/g, '/comment?id=$1&comment=$2&$4')
next()
})
server.get('/', function get(req, res) {
if(req.query.name && req.query.title && req.query.content) {
posts.push({author: req.query.name, title: req.query.title, content: req.query.content.replaceAll('\r\n', '\n'), comments: []})
res.redirect('/')
return
}
let mainPage = {author: webname, title: 'All posts', content: 'These are all the posts on the board:', comments: []}
for (let i = 0; i < posts.length && i < 2000; i++) {
mainPage.comments.push({author: posts[i].author, title: posts[i].title, content: posts[i].content, comments: []})
}
res.render('post.ejs', {post: mainPage, postid: '-1', webname: webname, comment: ''})
})
server.get('/post', function get(req, res) {
if(req.query.id) {
let id = req.query.id
if(posts[id]) {
res.render('post.ejs', {post: posts[id], postid: id, webname: webname, comment: null})
}
}
})
server.get('/comment', function get(req, res) {
if(req.query.id) {
let id = req.query.id
let comment = req.query.comment
if(posts[id]) {
let cid = ''
function recurse(post) {
console.log(String(cid) + ' ' + comment)
if(String(cid) === comment) {
if(req.query.name && req.query.title && req.query.content) {
post.comments.push({author: req.query.name, title: req.query.title, content: req.query.content.replaceAll('\r\n', '\n'), comments: []})
res.redirect(`/post/${id}`)
cid = -1
}
return true
}
for(let i = 0; i < post.comments.length; i++) {
const pid = cid
cid += i + '_'
if(recurse(post.comments[i]))
return true
cid = pid
}
return false
}
const f = recurse(posts[id]);
if(f && cid == -1)
return
if(f) {
res.render('post.ejs', {post: posts[id], postid: id, webname: webname, comment: cid})
}
else {
if(req.query.name && req.query.title && req.query.content) {
posts[id].comments.push({author: req.query.name, title: req.query.title, content: req.query.content.replaceAll('\r\n', '\n'), comments: []})
res.redirect(`/post/${id}`)
}
else
res.render('post.ejs', {post: posts[id], postid: id, webname: webname, comment: ''})
}
}
}
else
res.send("err1")
})
let PORT = process.argv[2]
if(!PORT) PORT = process.env.PORT
if(!PORT) PORT = 8080
server.listen(Number(PORT), () => console.log(PORT))