added README.md, some changes

.env.default

@@ -0,0 +1,8 @@
+APP_ENV=local
+HOST=localhost
+PORT=3000
+SOCKET_PORT=8080
+
+#APP_END=production
+#SSL_KEY=
+#SSL_CERT=

README.md

@@ -0,0 +1,38 @@
+# private-chat
+
+This is a small application for private chat. 1 Room can only have 2 people inside.
+
+It uses `express, socket.io, ejs`. 
+
+## How to use
+
+first of all clone the repo
+
+`git clone https://github.com/halilcakar/private-chat.git && cd private-chat`
+
+and then install
+
+`npm i`
+
+then you need to copy .env.default to .env. bash script might be differen for you i'm using git bash generally so
+
+`cp .env.default .env`
+
+after these steps you can just run
+
+`npm run dev` or `yarn dev`
+
+I also added an option for SSL usage, if you have a generated ssl that you can use, you need to set the `SSL_KEY` and `SSL_CERT` parameters on `.env`
+
+If you set those and make `APP_ENV=production` it will try to run the server on `https`. But for local testing you can just leave `.env` as it is.
+
+## Thanks to: 
+[favicon.io](https://favicon.io/) that provides that beautiful favicons.
+
+
+## Some photos :)
+<img src="./public/images/1.png">
+<img src="./public/images/2.png">
+<img src="./public/images/3.png">
+
+

server.js

@@ -1,21 +1,34 @@
-const { host, PORT, SOCKET_PORT, APP_ENV } = require('./src/config');
+const { host, PORT, SOCKET_PORT, APP_ENV, SSL } = require('./src/config');
 console.clear();
 const { UUID, Last } = require('./src/functions');
 const express = require('express')
 const path = require('path')
 const app = express();
-const server = require('http').createServer(app);
+
+
+let protocol = 'http';
+let options = {};
+if (APP_ENV === 'production') {
+    protocol = 'https';
+    options = {
+        key: fs.readFileSync(SSL.KEY),
+        cert: fs.readFileSync(SSL.CERT)
+    };
+}
+
+const server = require(protocol).createServer(options, app);
 server.listen({ host, port: SOCKET_PORT }, () => {
-    console.log(`HTTP server listening on http://${host}:${SOCKET_PORT}`)
+    console.log(`Server listening on ${protocol}://${host}:${SOCKET_PORT}`)
 });
+
 const io = require('socket.io')(server);
 
 
 app.use(express.static(path.join(__dirname, 'public')))
     .set('views', path.join(__dirname, 'views'))
     .set('view engine', 'ejs')
-    .get('/', (req, res) => res.render('pages/index', { url: APP_ENV === 'local' ? `http://${host}:${SOCKET_PORT}` : `window.location.href` }))
-    .listen(PORT, () => console.log(`Listening on http://${host}:${PORT}`))
+    .get('/', (req, res) => res.render('pages/index', { url: `${protocol}://${host}:${SOCKET_PORT}` }))
+    .listen(PORT, () => console.log(`Listening on ${protocol}://${host}:${PORT}`))
 
 const channels = [];
 

src/config.js

@@ -5,10 +5,15 @@ const host = process.env.HOST;
 const PORT = process.env.PORT || 3000;
 const SOCKET_PORT = process.env.SOCKET_PORT || 8080;
 
+const SSL = {
+    KEY: process.env.SSL_KEY,
+    CERT: process.env.SSL_CERT,
+}
 
 module.exports = {
     APP_ENV,
     host,
     PORT,
-    SOCKET_PORT
+    SOCKET_PORT,
+    SSL
 }

src/functions.js

@@ -1,4 +1,4 @@
-var UUID = function () {
+function UUID() {
     return 'xxxx-yxxx-4xxx-yxxx'.replace(/[xy]/g, function (c) {
         var r = Math.random() * 16 | 0;
         var v = (c === 'x') ? r : (r & 0x3 | 0x8);
@@ -7,7 +7,10 @@ var UUID = function () {
     });
 };
 
-var Last = function (arr) {
+function Last(arr) {
+    if (Array.isArray(arr)) {
+        return null;
+    }
     return arr[arr.length - 1];
 }