add dedicated config file

app.js

@@ -1,44 +1,6 @@
-/**
- These you need to change:
-*/
-global.domain = 'teddit.net'
-global.reddit_app_id = 'H6-HjZ5pUPjaFQ' // app ID in Reddit (type: "installed app")
-/**
-* You don't necessarily need to configure anything else if you are following the
-* README installation guide.
-*/
-global.video_enabled = true // If true, we download videos from [valid_media_domains] domains
-const SSL_PORT = 8088
-const NONSSL_PORT = 8080
-const LISTEN_ADDRESS = '0.0.0.0' // aka localhost
-const cert_dir = `/home/teddit/letsencrypt/live/${domain}/`
-const https_enabled = true
-const redirect_http_to_https = true
-const use_compression = true
-const use_view_cache = false
-const use_helmet = true
-const use_helmet_hsts = true
-const trust_proxy = false // Enable trust_proxy if you are using reverse proxy like nginx
-const trust_proxy_address = '127.0.0.1'
-global.setexs = {
-  /**
-  * Redis cache expiration values (in seconds).
-  * When the cache expires, new content is fetched from Reddit's API (when
-  * the given URL is revisited).
-  */
-  frontpage: 600,
-  subreddit: 600,
-  posts: 600,
-  user: 600,
-  searches: 600,
-  sidebar: 60 * 60 * 24 * 7 // 7 days
-}
-global.client_id_b64 = Buffer.from(`${reddit_app_id}:`).toString('base64')
-global.reddit_access_token = null
-global.reddit_refresh_token = null
-global.valid_media_domains = ['preview.redd.it', 'external-preview.redd.it', 'i.redd.it', 'v.redd.it', 'a.thumbs.redditmedia.com', 'b.thumbs.redditmedia.com', 'thumbs.gfycat.com', 'i.ytimg.com']
-global.reddit_api_error_text = `Seems like your instance is either blocked (e.g. due to API rate limiting), reddit is currently down, or your API key is expired and not renewd properly. This can also happen for other reasons.`
-global.redirect_www = true
+const config = require('./config')
+
+global.client_id_b64 = Buffer.from(`${config.reddit_app_id}:`).toString('base64')
 
 const pug = require('pug')
 const path = require('path')
@@ -56,15 +18,15 @@ const request = require('postman-request')
 const commons = require('./inc/commons.js')(request, fs)
 const dlAndSave = require('./inc/downloadAndSave.js')(commons)
 
-if(!https_enabled && redirect_http_to_https) {
+if(!config.https_enabled && config.redirect_http_to_https) {
   console.error(`Cannot redirect HTTP=>HTTPS while "https_enabled" is false.`)
 }
 
 let https = null
-if(https_enabled) {
-  const privateKey = fs.readFileSync(`${cert_dir}/privkey.pem`, 'utf8')
-  const certificate = fs.readFileSync(`${cert_dir}/cert.pem`, 'utf8')
-  const ca = fs.readFileSync(`${cert_dir}/chain.pem`, 'utf8')
+if(config.https_enabled) {
+  const privateKey = fs.readFileSync(`${config.cert_dir}/privkey.pem`, 'utf8')
+  const certificate = fs.readFileSync(`${config.cert_dir}/cert.pem`, 'utf8')
+  const ca = fs.readFileSync(`${config.cert_dir}/chain.pem`, 'utf8')
   const credentials = {
 	  key: privateKey,
 	  cert: certificate,
@@ -78,7 +40,7 @@ if(https_enabled) {
 
 const http = require('http').Server(app)
 
-if(redirect_www) {
+if(config.redirect_www) {
   app.use((req, res, next) => {
     if(req.headers.host) {
       if(req.headers.host.slice(0, 4) === 'www.') {
@@ -90,24 +52,24 @@ if(redirect_www) {
   })
 }
 
-if(use_helmet && https_enabled) {
+if(config.use_helmet && config.https_enabled) {
   app.use(helmet())
-  if(use_helmet_hsts) {
+  if(config.use_helmet_hsts) {
     app.use(helmet.hsts({ maxAge: 31536000, preload: true }))
   }
 }
 
-if(use_compression) {
+if(config.use_compression) {
   app.use(compression())
 }
 
 app.use(cookieParser())
 
-if(use_view_cache) {
+if(config.use_view_cache) {
   app.set('view cache', true)
 }
 
-if(trust_proxy) {
+if(config.trust_proxy) {
   app.set('trust proxy', trust_proxy_address)
 }
 
@@ -118,7 +80,7 @@ app.use(express.static(`${__dirname}/dist`))
 app.set('views', './views')
 app.set('view engine', 'pug')
 
-if(redirect_http_to_https) {
+if(config.redirect_http_to_https) {
   app.use((req, res, next) => {
     if(req.secure)
       next()
@@ -136,7 +98,8 @@ redis.on('error', (error) => {
   }
 })
 
-if(https_enabled) {
-  https.listen(SSL_PORT, LISTEN_ADDRESS, () => console.log(`Teddit running on https://${domain}`))
+if(config.https_enabled) {
+  https.listen(config.ssl_port, '::', () => console.log(`Teddit running on https://${config.domain}`))
+  //https.listen(SSL_PORT, '::', () => console.log(`Teddit running on https://${domain}`))
 }
-http.listen(NONSSL_PORT, LISTEN_ADDRESS, () => console.log(`Teddit running on http://${domain}`))
+http.listen(config.nonssl_port, '::', () => console.log(`Teddit running on http://${config.domain}`))