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const express = require('express')
const app = express()
const rateLimit = require('express-rate-limit')
const helmet = require('helmet')
const bp = require('body-parser')
const cookieParser = require('cookie-parser')
const fs = require('fs')
const path = require('path')
const { readdirSync } = require('fs')
const session = require('./src/session')()
const mime = {
html: 'text/html',
txt: 'text/plain',
css: 'text/css',
xml: 'text/xml',
gif: 'image/gif',
jpg: 'image/jpeg',
png: 'image/png',
webp: 'image/webp',
avif: 'image/avif',
ico: 'image/ico',
svg: 'image/svg+xml',
js: 'application/javascript',
json: 'application/json',
mp4: 'video/mp4',
webm: 'video/webm',
ttf: 'application/x-font-truetype',
ttc: 'application/x-font-truetype',
otf: 'application/x-font-otf',
ots: 'application/x-font-otf',
woff: 'application/font-woff',
woff2: 'application/font-woff',
pfb: 'application/vnd.ms-fontbook',
pfm: 'application/vnd.ms-fontbook',
gsf: 'application/vnd.ms-fontbook',
swf: 'application/vnd.ms-fontbook'
}
const assetDir = () => {
return readdirSync(`${__dirname}/assets`, { withFileTypes: true })
.filter(dir => dir.isDirectory())
.map(dir => dir.name)
}
// ! Setup later
/*
const limiter = rateLimit({
windowMS: 30 * 1000,
max: 100,
message: '<h1>Rate Limit Exceeded</h1><p>You have exceeded the allowed number of requests. Please try again later.</p>'
})
*/
require('dotenv').config()
const sitemap = require('./src/sitemap')
const logger = require('./src/logger')({
baseURL: process.env.baseURL
})
const createLog = (req, res, next) => {
const { cookies } = req
const object = {
queryString: '',
exists: false
}
Object.entries(req.query).forEach(([key, value]) => {
if (object.exists === false) {
object.queryString += '?'
}
object.queryString += `${key}=${value}&`
object.exists = true
})
if (object.exists) object.queryString = object.queryString.slice(0, -1)
logger.Info(`${req.method} ${req.path}${object.queryString} from ${req.ip}:${cookies.session_id ? cookies.session_id.replace('session_id', '') : 'n/a'}`)
next()
}
const validateCookie = (req, res, next) => {
const { cookies } = req
if (cookies === undefined) {
res.cookie('session_id', session.Create())
} else {
if ('session_id' in cookies) {
if (session.Exists(cookies.session_id.replace('session_id', ''))) {
session.Expired()
} else {
res.clearCookie('session_id')
res.cookie('session_id', session.Create())
}
} else res.cookie('session_id', session.Create())
}
next()
}
const openFile = x => {
const data = {
path: x.filePath.split('/'),
exists: false,
data: {}
}
if (assetDir().includes(data.path[1])) {
this.path = `${__dirname}/assets/${data.path[1]}/${data.path[2]}`
data.exists = fs.existsSync(this.path)
data.data.mime = mime[path.extname(this.path).slice(1)] || 'text/plain'
data.data.file = fs.createReadStream(this.path)
.on('error', (err) => {
return
})
} else if (data.path[1] === 'favicon.ico' && (data.path.length === 2 || (data.path.length === 3 && data.path[2] === ''))) {
data.data.file = fs.createReadStream(`${__dirname}/config/favicon.ico`)
.on('error', (err) => {
logger.Error(`'favicon.ico' does not exist. Please add it to the config.`)
})
}
if (data.exists) {
x.res.set('Content-Type', data.data.mime)
data.data.file
.on('open', () => {
data.data.file.pipe(x.res)
})
.on('error', err => {
logger.Error(err)
})
} else {
x.res.set('Content-Type', mime.html)
x.res.status(404).send('File not found.')
}
}
app.use(bp.json())
app.use(cookieParser())
app.use((req, res, next) => {
let err = null
try {
decodeURIComponent(req.path)
} catch (e) {
err = e
}
if (err) {
return res.redirect(['http://', req.get('Host'), '/404'].join(''))
}
next()
})
const handleRoutes = (req, res, next) => {
this.path = {
split: req.path.split('/'),
string: req.path
}
if(routes.has(this.path.string)) {
const route = routes.get(this.path.string)
if (route.req === req.method) {
res.send(route.method())
} else {
next()
}
} else {
next()
}
}
const routeData = {
app: app,
validateCookie: validateCookie,
//log: createLog,
mime: mime,
session: session
}
const routeConfigData = routeData
routeConfigData.logger = logger
const controller = require('./src/controller')({
baseURL: process.env.baseURL,
app: app,
validateCookie: validateCookie,
log: createLog,
mime: mime,
session: session,
logger: logger,
mime: mime
})
app.route(/(.*)/)
.get(validateCookie, createLog, (req, res) => {
this.path = {
split: req.path.split('/'),
string: req.path
}
if (assetDir().includes(this.path.split[1])) {
openFile({
filePath: this.path.string,
res: res
})
} else {
switch (this.path.split[1]) {
case 'favicon.ico':
openFile({
filePath: this.path.string,
res: res
})
break
case 'sitemap.xml':
// ! Output as XML
const data = sitemap({baseURL: process.env.baseURL})
data.Sitemap().then(output => {
res.send(output)
})
break
case 'rss':
// ! Weird output
// ! Move to `routes`
rss({
baseURL: process.env.baseURL
})
break
case 'devlog':
break
case 'deverror':
break
default:
const temp = controller.Init({
req: req,
res: res,
path: this.path.string,
baseURL: process.env.baseURL,
routeData: routeConfigData
})
const response = temp.template
res.send(response)
break
}
}
})
.post(createLog, (req, res) => {})
.put(createLog, (req, res) => {})
.delete(createLog, (req, res) => {})
.patch(createLog, (req, res) => {})
/*
.all(createLog, (req, res) => {
res.set('Content-Type', mime.html)
res.status(404).send('You are not allowed to access this resource')
})
*/
app.listen(process.env.PORT, () => {
logger.Info(`Listening on: ${process.env.baseURL}`)
})
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