[call-me] - init commit

This commit is contained in:
Miroslav Pejic
2024-09-12 20:22:27 +02:00
commit 9d1218edbf
43 changed files with 2145 additions and 0 deletions
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# Server
SSL=false # true or false
DOMAIN=localhost
PORT=8000
# Stun
STUN_SERVER_ENABLED=true # true or false
STUN_SERVER_URL=stun:stun.l.google.com:19302
# Turn
# Please create your own free account on: https://www.metered.ca/tools/openrelay/
TURN_SERVER_ENABLED=false # true or false
TURN_SERVER_URL=turn:a.relay.metered.ca:443
TURN_SERVER_USERNAME=e8dd65b92c62d3e36cafb807
TURN_SERVER_CREDENTIAL=uWdWNmkhvyqTEswO
# API
API_KEY_SECRET=call_me_api_key_secret # change me
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.env
node_modules
package-lock.json
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.github
package-lock.json
node_modules
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module.exports = {
semi: true,
trailingComma: 'all',
singleQuote: true,
printWidth: 120,
tabWidth: 4,
};
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# Use a lightweight Node.js image
FROM node:20-alpine
# Set working directory
WORKDIR /src
# Copy package.json and .env dependencies
COPY package.json .
COPY .env ./.env
# Install necessary system packages and dependencies
RUN npm install \
&& npm cache clean --force \
&& rm -rf /tmp/* /var/tmp/* /usr/share/doc/*
# Copy the application code
COPY app app
COPY public public
# Set default command to start the application
CMD ["npm", "start"]
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This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<https://www.gnu.org/licenses/>.
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# Call-Me
This project enables easy one-to-one video calls directly from your web browser using WebRTC technology.
![callme](./assets/doc/callme.png)
## Getting Started
### Overview
This project allows you to:
- `Sign in` with a username.
- `Make video calls` by entering the recipient's username.
- `Toggle` your video feed visibility.
- `Hang up` the call when done.
- `Rest API` to get all connected users.
### Quick Start
**[Install Node.js and npm](https://nodejs.org/en/download)**
```shell
# Copy the .env and edit if need
cp .env.template .env
# Install dependencies:
npm install
# Start the application:
npm start
```
1. Open your browser and visit [http://localhost:8000](http://localhost:8000).
2. Sign in with your username.
3. Enter the recipient's username and click `Call`.
4. Enjoy your one-to-one video call.
## API
Get all connected users
```shell
curl -X GET "http://localhost:8000/api/v1/users" -H "authorization: call_me_api_key_secret" -H "Content-Type: application/json"
```
## Self-Hosting
To install this on your VPS, VDS, or personal server, please follow the instructions in **[the self-hosting documentation](./doc/self-hosting.md)**.
---
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swagger: '2.0'
info:
title: Call-me API
description: API description for external applications that integrates with Call-me.
version: 1.0.0
basePath: /api/v1
schemes:
- https
- http
paths:
/users:
get:
tags:
- 'users'
summary: 'Connected users'
description: 'Get all connected users'
consumes:
- 'application/json'
produces:
- 'application/json'
security:
- secretApiKey: []
responses:
'200':
description: 'Connected users'
schema:
$ref: '#/definitions/UsersResponse'
'403':
description: 'Unauthorized!'
securityDefinitions:
secretApiKey:
type: 'apiKey'
name: 'authorization'
in: 'header'
description: 'Format like this: authorization: {API_KEY_SECRET}'
definitions:
UsersResponse:
type: 'object'
properties:
users:
type: 'array'
Executable
+272
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@@ -0,0 +1,272 @@
'use strict';
// Import necessary modules
const dotenv = require('dotenv').config();
const express = require('express');
const fs = require('fs');
const http = require('http');
const https = require('https');
const socketIO = require('socket.io');
const path = require('path');
const yaml = require('js-yaml');
const swaggerUi = require('swagger-ui-express');
// Public directory location
const PUBLIC_DIR = path.join(__dirname, '../', 'public');
// Map to store connected users
const users = new Map();
// Configuration settings
const config = {
iceServers: [],
stunServerEnabled: process.env.STUN_SERVER_ENABLED === 'true',
stunServerUrl: process.env.STUN_SERVER_URL,
turnServerEnabled: process.env.TURN_SERVER_ENABLED === 'true',
turnServerUrl: process.env.TURN_SERVER_URL,
turnServerUsername: process.env.TURN_SERVER_USERNAME,
turnServerCredential: process.env.TURN_SERVER_CREDENTIAL,
apiKeySecret: process.env.API_KEY_SECRET,
apiBasePath: '/api/v1',
swaggerDocument: yaml.load(fs.readFileSync(path.join(__dirname, '/api/swagger.yaml'), 'utf8')),
};
// Add STUN server if enabled and URL is provided
if (config.stunServerEnabled && config.stunServerUrl) {
config.iceServers.push({ urls: config.stunServerUrl });
}
// Add TURN server if enabled and all required information is provided
if (config.turnServerEnabled && config.turnServerUrl && config.turnServerUsername && config.turnServerCredential) {
config.iceServers.push({
urls: config.turnServerUrl,
username: config.turnServerUsername,
credential: config.turnServerCredential,
});
}
// Create Express application
const app = express();
// Server configurations
const domain = process.env.DOMAIN || 'localhost';
const isHttps = process.env.SSL === 'true';
const port = process.env.PORT || 4000;
const host = `http${isHttps ? 's' : ''}://${domain}:${port}`;
const apiDocs = host + config.apiBasePath + '/docs';
// This server
let server;
// Load self-signed certificates if HTTPS is enabled
if (isHttps) {
try {
const options = {
key: fs.readFileSync(path.join(__dirname, '/ssl/key.pem'), 'utf-8'),
cert: fs.readFileSync(path.join(__dirname, '/ssl/cert.pem'), 'utf-8'),
};
// Create HTTPS server using Express
server = https.createServer(options, app);
} catch (err) {
console.error('Error loading certificates:', err);
process.exit(1); // Exit the process if certificates cannot be loaded
}
} else {
// Create HTTP server using Express
server = http.createServer(app);
}
// Create WebSocket server using Socket.io on top of HTTP server
const io = socketIO(server);
// Start the server and listen on the specified port
server.listen(port, () => {
console.log('Server', {
running_at: host,
ice: config.iceServers,
api_key_secret: config.apiKeySecret,
api_docs: apiDocs,
});
});
// Handle WebSocket connections
io.on('connection', handleConnection);
app.use(express.static(PUBLIC_DIR)); // Serve static files from the 'public' directory
app.use(express.json()); // Api parse body data as json
app.use(config.apiBasePath + '/docs', swaggerUi.serve, swaggerUi.setup(config.swaggerDocument)); // api docs
// Logs requests
app.use((req, res, next) => {
console.log('New request', {
headers: req.headers,
body: req.body,
method: req.method,
path: req.originalUrl,
});
next();
});
// Set up route to serve the main HTML file
app.get('/', (req, res) => {
res.sendFile(path.join(PUBLIC_DIR, '/index.html'));
});
// Axios API requests
app.get(`${config.apiBasePath}/users`, (req, res) => {
// check if user is authorized for the API call
const { authorization } = req.headers;
console.log(authorization);
if (authorization != config.apiKeySecret) {
console.log('Unauthorized API call: Get Users', {
headers: req.headers,
body: req.body,
});
return res.status(403).json({ error: 'Unauthorized!' });
}
// Get connected users
const users = getConnectedUsers();
return res.json({ users });
});
// Function to handle individual WebSocket connections
function handleConnection(socket) {
console.log('User connected:', socket.id);
// Send a ping message to the newly connected client
sendPing(socket);
// Set up event listeners for incoming messages and disconnect
socket.on('message', handleMessage);
socket.on('disconnect', handleClose);
// Function to handle incoming messages
function handleMessage(data) {
const { type } = data;
console.log('Received message:', type);
switch (type) {
case 'signIn':
handleSignIn(data);
break;
case 'offerAccept':
case 'offerDecline':
case 'offerCreate':
handleOffer(data);
break;
case 'offer':
case 'answer':
case 'candidate':
case 'leave':
handleSignalingMessage(data);
break;
case 'pong':
console.log('Client response:', data.message);
break;
default:
sendError(socket, `Unknown command: ${type}`);
break;
}
}
// Send a ping message to the newly connected client and iceServers for peer connection
function sendPing(socket) {
sendMsgTo(socket, {
type: 'ping',
message: 'Hello Client!',
iceServers: config.iceServers,
});
}
// Function to handle user sign-in request
function handleSignIn(data) {
const { name } = data;
if (!users.has(name)) {
users.set(name, socket);
socket.username = name;
console.log('User signed in:', name);
sendMsgTo(socket, { type: 'signIn', success: true });
console.log('Users', getConnectedUsers());
} else {
sendMsgTo(socket, { type: 'signIn', success: false, message: 'Username already in use' });
}
}
// Function to handle offer request
function handleOffer(data) {
console.log('handleOffer', data);
const { from, to, name, type } = data;
const toName = type === 'offerAccept' ? to : from;
const recipientSocket = users.get(toName);
console.log(`Handling offer for ${toName}`);
switch (type) {
case 'offerAccept':
case 'offerCreate':
if (recipientSocket) {
sendMsgTo(recipientSocket, data);
} else {
console.warn(`Recipient (${toName}) not found`);
sendError(socket, `User ${toName} not found`);
}
break;
case 'offerDecline':
console.warn(`User ${name} declined your call`);
sendError(recipientSocket || socket, `User ${name} declined your call`);
break;
default:
console.warn(`Unknown offer type: ${type}`);
break;
}
}
// Function to handle signaling messages (offer, answer, candidate, leave)
function handleSignalingMessage(data) {
const { name } = data;
const recipientSocket = users.get(name);
if (recipientSocket) {
sendMsgTo(recipientSocket, { ...data, name: socket.username });
} else {
sendError(socket, `User ${name} not found`);
}
}
// Function to handle the closing of a connection
function handleClose() {
if (socket.username) {
console.log('User disconnected:', socket.username);
users.delete(socket.username);
const recipientSocket = users.get(socket.recipient);
if (recipientSocket) {
sendMsgTo(recipientSocket, { type: 'leave' });
}
console.log('Users', getConnectedUsers());
}
}
}
// Function to get all connected users
function getConnectedUsers() {
return Array.from(users.keys());
}
// Function to broadcast a message to all connection
function broadcastMsg(socket, message) {
console.log('Broadcast message:', message.type);
socket.broadcast.emit('message', message);
}
// Function to send a message to a specific connection
function sendMsgTo(socket, message) {
console.log('Sending message:', message.type);
socket.emit('message', message);
}
// Function to send an error message to a specific connection
function sendError(socket, message) {
console.error('Error:', message);
sendMsgTo(socket, { type: 'error', message: message });
}
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## Call-me SSL
![call-me-https](https.png)
1. Generate a [self-signed certificate](https://en.wikipedia.org/wiki/Self-signed_certificate)
```bash
# install openssl 4 ubuntu
apt install openssl
# install openssl 4 mac
brew install openssl
# self-signed certificate
openssl genrsa -out key.pem
openssl req -new -key key.pem -out csr.pem
openssl x509 -req -days 9999 -in csr.pem -signkey key.pem -out cert.pem
rm csr.pem
# https://www.sslchecker.com/certdecoder
```
2. Expose `server.js` on `https` using the `self-signed certificate`, edit the `.env` file
```bash
SSL=true
```
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-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
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-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
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# Call-me - Self Hosting
![logo](../assets/doc/logo.png)
## Requirements
- Server Selection:
- [Hetzner](https://www.hetzner.com/cloud) (CX11) - Use [this link](https://hetzner.cloud/?ref=XdRifCzCK3bn) to receive `€⁠20 in cloud credits`
- [Contabo](https://www.dpbolvw.net/click-101027391-14462707) (VPS-0)
- OS: Ubuntu 22.04 LTS.
- [Node.js](https://nodejs.org/en/) (LTS) and npm
- Domain or Subdomain Name (e.g., `YOUR.DOMAIN.NAME`) with a DNS A record pointing to your server's IPv4 address.
- `Recommend` utilizing a [Turn Server](../coturn/stun-turn.md) the installation documentation accessible [here](https://docs.mirotalk.com/coturn/installation/).
---
## Installation
Install `NodeJS 18.X` and `npm` using [Node Version Manager](https://docs.mirotalk.com/nvm/nvm/)
---
## Quick start
```bash
# Install dependencies
$ npm install
# Start the server
$ npm start
```
Check if is correctly installed: [http://YOUR.DOMAIN.NAME:8000](http://YOUR.DOMAIN.NAME:8000)
---
## Using [PM2](https://pm2.keymetrics.io) (Process Manager)
![pm2](../assets/doc/pm2.png)
```bash
# Install pm2
$ npm install -g pm2
# Start the server
$ pm2 start app/server.js
# Takes a snapshot
$ pm2 save
# Add it on startup
$ pm2 startup
```
---
## Using Docker
![docker](../assets/doc/docker.png)
```bash
# Install docker
$ sudo apt install -y docker.io
# Instal docker-compose
$ sudo apt install -y docker-compose
# Build the docker image
$ docker build -t call/me . # --load
# Create and start containers (-d as daemon)
$ docker-compose up
```
Check if is correctly installed: [http://YOUR.DOMAIN.NAME:8000](http://YOUR.DOMAIN.NAME:8000)
---
## Configuring Nginx & Certbot
![nginx](../assets/doc/nginx.png)
In order to use it without the port number and to have encrypted communications (`mandatory to make it work correctly`), we going to install **[nginx](https://www.nginx.com)** and **[certbot](https://certbot.eff.org)**
```bash
# Install Nginx
$ sudo apt-get install -y nginx
# Install Certbot (SSL certificates)
$ sudo apt install -y snapd
$ sudo snap install core; sudo snap refresh core
$ sudo snap install --classic certbot
$ sudo ln -s /snap/bin/certbot /usr/bin/certbot
# Configure Nginx
$ sudo vim /etc/nginx/sites-enabled/default
```
Add the following:
```bash
# HTTP — redirect all traffic to HTTPS
server {
listen 80;
listen [::]:80;
server_name YOUR.DOMAIN.NAME;
return 301 https://$host$request_uri;
}
```
```bash
# Test Nginx configuration
$ sudo nginx -t
# Enable HTTPS with Certbot (follow the instruction)
$ sudo certbot certonly --nginx
# Add Let's Encrypt configuration to Nginx
$ sudo vim /etc/nginx/sites-enabled/default
```
Add the following:
```bash
# CallMe - HTTPS — proxy all requests to the Node app
server {
# Enable HTTP/2
listen 443 ssl http2;
listen [::]:443 ssl http2;
server_name YOUR.DOMAIN.NAME;
# Use the Lets Encrypt certificates
ssl_certificate /etc/letsencrypt/live/YOUR.DOMAIN.NAME/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/YOUR.DOMAIN.NAME/privkey.pem;
location / {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host;
proxy_pass http://localhost:8000/;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
}
```
```bash
# Test Nginx configuration again
$ sudo nginx -t
# Restart nginx
$ service nginx restart
$ service nginx status
# Set up auto-renewal for SSL certificates
$ sudo certbot renew --dry-run
# Show certificates
$ sudo certbot certificates
```
Check Your CallMe instance: [https://YOUR.DOMAIN.NAME](https://YOUR.DOMAIN.NAME)
---
## Apache Virtual Host (Alternative to Nginx)
![apache](../assets/doc/apache.png)
If you prefer `Apache`, configure it with the equivalent settings provided in this guide.
```bash
# Edit the apache sites
vim /etc/apache2/sites-enabled/YOUR.DOMAIN.NAME.conf
```
Add the following:
```bash
# HTTP — redirect all traffic to HTTPS
<VirtualHost *:80>
ServerName YOUR.DOMAIN.NAME
Redirect permanent / https://YOUR.DOMAIN.NAME
</VirtualHost>
# CallMe - HTTPS — proxy all requests to the Node app
<VirtualHost *:443>
ServerName YOUR.DOMAIN.NAME
# SSL Configuration
SSLEngine on
SSLCertificateFile /etc/letsencrypt/live/YOUR.DOMAIN.NAME/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/YOUR.DOMAIN.NAME/privkey.pem
Include /etc/letsencrypt/options-ssl-apache.conf
# Enable HTTP/2 support
Protocols h2 http/1.1
<Location />
# Proxy Configuration for Node.js App
ProxyPass http://localhost:8000/
ProxyPassReverse http://localhost:8000/
ProxyPreserveHost On
RequestHeader set X-Forwarded-For "%{REMOTE_ADDR}s"
RequestHeader set X-Forwarded-Proto "https"
RequestHeader set Host "%{HTTP_HOST}s"
# Enable WebSocket proxy support for Socket.IO
RewriteEngine On
RewriteCond %{HTTP:Upgrade} =websocket [NC]
RewriteRule /(.*) ws://localhost:8000/socket.io/$1 [P,L]
# Adjust the WebSocket path according to your Socket.IO configuration
# For Socket.IO 3.x or higher, use /socket.io/?EIO=4&transport=websocket
</Location>
</VirtualHost>
```
```bash
# Check configuration
sudo apache2ctl configtest
sudo a2enmod proxy # Enables the `mod_proxy` module, which is essential for proxying HTTP and WebSocket connections.
sudo a2enmod proxy_http # Enables the `mod_proxy_http` module, which adds support for proxying HTTP connections.
sudo a2enmod proxy_wstunnel # Enables the `mod_proxy_wstunnel` module, which provides support for tunneling WebSocket connections
# Restart apache
sudo systemctl restart apache2
```
---
## Updating Your Instance
To keep your CallMe instance up to date, create an update script:
```bash
cd
# Create a file p2pUpdate.sh
$ vim callmeUpdate.sh
```
---
For `PM2`:
```bash
#!/bin/bash
cd callme
pm2 stop app/server.js
sudo npm install
pm2 start app/server.js
```
---
For `Docker`:
```bash
#!/bin/bash
cd callme
docker-compose down
docker build -t call/me . # --load
docker images |grep '<none>' |awk '{print $3}' |xargs docker rmi
docker-compose up -d
```
---
Make the script executable
```bash
$ chmod +x callmeUpdate.sh
```
To update your CallMe instance to the latest version, follow these steps:
1. Replace the existing `callme` folder with the newest version
```bash
scp -r /path/to/local/folder username@remote_host:/path/to/remote/folder
```
2. Run the update script `./callmeUpdate.sh`
---
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version: '3'
services:
callme:
image: call/me:latest
build:
context: .
dockerfile: Dockerfile
container_name: callme
hostname: callme
volumes:
- .env:/src/.env:ro
- ./app/:/src/app/:ro
- ./public/:/src/public/:ro
restart: unless-stopped
ports:
- '${PORT}:${PORT}'
Executable
+23
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{
"name": "callme",
"version": "1.0.2",
"description": "callme",
"author": "Miroslav Pejic - miroslav.pejic.85@gmail.com",
"license": "AGPLv3",
"scripts": {
"start": "node app/server.js",
"dev": "nodemon app/server.js",
"lint": "npx prettier --write ."
},
"dependencies": {
"dotenv": "^16.4.5",
"express": "^5.0.0",
"js-yaml": "4.1.0",
"socket.io": "^4.7.5",
"swagger-ui-express": "5.0.1"
},
"devDependencies": {
"nodemon": "^3.1.4",
"prettier": "3.3.3"
}
}
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'use strict';
// This user agent
const userAgent = navigator.userAgent;
// WebSocket connection to the signaling server
const socket = io();
// WebRTC configuration
const config = { iceServers: [{ urls: 'stun:stun.l.google.com:19302' }] };
// DOM elements
const signInPage = document.querySelector('#signInPage');
const usernameIn = document.querySelector('#usernameIn');
const signInBtn = document.querySelector('#signInBtn');
const roomPage = document.querySelector('#roomPage');
const callUsernameIn = document.querySelector('#callUsernameIn');
const callBtn = document.querySelector('#callBtn');
const hideBtn = document.querySelector('#hideBtn');
const hangUpBtn = document.querySelector('#hangUpBtn');
const localVideoContainer = document.querySelector('#localVideoContainer');
const localVideo = document.querySelector('#localVideo');
const localUsername = document.querySelector('#localUsername');
const remoteVideo = document.querySelector('#remoteVideo');
// User and connection information
let userName;
let connectedUser;
let thisConnection;
let stream;
// Hide room page initially
roomPage.style.display = 'none';
// WebSocket event listeners
socket.on('connect', handleSocketConnect);
socket.on('message', handleMessage);
socket.on('error', handleSocketError);
// Handle WebSocket connection establishment
function handleSocketConnect() {
console.log('Connected to the signaling server');
}
// Handle WebSocket errors
function handleSocketError(err) {
handleError('Socket error', err.message);
}
// Handle incoming messages based on type
function handleMessage(data) {
const { type } = data;
console.log('Got message', type);
switch (type) {
case 'ping':
handlePing(data);
break;
case 'signIn':
handleSignIn(data);
break;
case 'notfound':
handleNotFound(data);
break;
case 'offerAccept':
offerAccept(data);
break;
case 'offerCreate':
offerCreate();
break;
case 'offer':
handleOffer(data);
break;
case 'answer':
handleAnswer(data);
break;
case 'candidate':
handleCandidate(data);
break;
case 'leave':
handleLeave();
break;
case 'error':
handleError(data.message, data.message);
break;
default:
break;
}
}
// Event listeners
signInBtn.addEventListener('click', handleSignInClick);
callBtn.addEventListener('click', handleCallClick);
hideBtn.addEventListener('click', toggleLocalVideo);
hangUpBtn.addEventListener('click', handleHangUpClick);
// Handle sign-in button click
function handleSignInClick() {
userName = usernameIn.value;
if (userName.length > 0) {
sendMsg({
type: 'signIn',
name: userName,
});
}
}
// Handle call button click
function handleCallClick() {
const callToUsername = callUsernameIn.value;
if (callToUsername.length > 0) {
if (callToUsername === userName) {
handleError('You cannot call yourself.');
return;
}
connectedUser = callToUsername;
sendMsg({
type: 'offerAccept',
from: userName,
to: callToUsername,
});
} else {
handleError('Please enter a username to call.');
}
}
// Toggle local video visibility
function toggleLocalVideo() {
localVideoContainer.classList.toggle('hide');
}
// Handle hang-up button click
function handleHangUpClick() {
sendMsg({ type: 'leave' });
handleLeave();
}
// Handle ping message from the server
function handlePing(data) {
const { iceServers } = data;
if (iceServers) {
config.iceServers = iceServers;
}
sendMsg({
type: 'pong',
message: {
client: 'Hello Server!',
agent: userAgent,
},
});
}
// Handle user not found from the server
function handleNotFound(data) {
const { username } = data;
callUsernameIn.value = '';
handleError(`Username ${username} not found!`);
}
// Handle sign-in response from the server
function handleSignIn(data) {
const { success } = data;
if (!success) {
handleError('Username already in use. Try a different username.');
} else {
signInPage.style.display = 'none';
roomPage.style.display = 'block';
navigator.mediaDevices
.getUserMedia({ video: true, audio: true })
.then((myStream) => {
stream = myStream;
localVideo.srcObject = stream;
localVideo.playsInline = true;
localVideo.autoplay = true;
localVideo.muted = true;
localVideo.volume = 0;
localVideo.controls = false;
localUsername.innerText = userName;
initializeConnection();
})
.catch((error) => {
handleError('Failed to access camera and microphone.', error);
});
}
}
// Initialize WebRTC connection
function initializeConnection() {
thisConnection = new RTCPeerConnection(config);
stream.getTracks().forEach((track) => thisConnection.addTrack(track, stream));
thisConnection.ontrack = (e) => {
if (e.streams && e.streams[0]) {
remoteVideo.srcObject = e.streams[0];
remoteVideo.playsInline = true;
remoteVideo.autoplay = true;
remoteVideo.controls = false;
console.log('Remote stream set to video element');
} else {
handleError('No stream available in the ontrack event.');
}
};
thisConnection.onicecandidate = (event) => {
if (event.candidate) {
sendMsg({
type: 'candidate',
candidate: event.candidate,
});
}
};
// For debugging purposes
thisConnection.onconnectionstatechange = (event) => {
console.log('Connection state change:', thisConnection.connectionState);
};
thisConnection.oniceconnectionstatechange = (event) => {
console.log('ICE connection state change:', thisConnection.iceConnectionState);
};
}
// Create and send an offer
function offerCreate() {
if (!thisConnection) {
initializeConnection();
}
thisConnection
.createOffer()
.then((offer) => {
thisConnection.setLocalDescription(offer);
sendMsg({
type: 'offer',
offer,
});
callUsernameIn.style.display = 'none';
})
.catch((error) => {
handleError('Error when creating an offer.', error);
});
}
// Accept incoming offer
function offerAccept(data) {
sound('ring');
Swal.fire({
position: 'center',
//icon: 'question',
imageUrl: 'assets/ring.png',
text: 'Do you want to accept call from ' + data.from + ' ?',
showDenyButton: true,
confirmButtonText: `Yes`,
denyButtonText: `No`,
showClass: { popup: 'animate__animated animate__fadeInDown' },
hideClass: { popup: 'animate__animated animate__fadeOutUp' },
}).then((result) => {
if (result.isConfirmed) {
callUsernameIn.style.display = 'none';
callBtn.style.display = 'none';
data.type = 'offerCreate';
} else {
data.type = 'offerDecline';
}
sendMsg({ ...data });
});
}
// Handle incoming offer
function handleOffer(data) {
const { offer, name } = data;
connectedUser = name;
initializeConnection();
thisConnection.setRemoteDescription(new RTCSessionDescription(offer));
thisConnection
.createAnswer()
.then((answer) => {
thisConnection.setLocalDescription(answer);
sendMsg({
type: 'answer',
answer,
});
})
.catch((error) => {
handleError('Error when creating an answer.', error);
});
}
// Handle incoming answer
function handleAnswer(data) {
const { answer } = data;
thisConnection.setRemoteDescription(new RTCSessionDescription(answer)).catch((error) => {
handleError('Error when set remote description.', error);
});
}
// Handle incoming ICE candidate
function handleCandidate(data) {
const { candidate } = data;
callBtn.style.display = 'none';
thisConnection.addIceCandidate(new RTCIceCandidate(candidate)).catch((error) => {
handleError('Error when add ice candidate.', error);
callBtn.style.display = 'inline';
});
}
// Play audio sound
async function sound(name) {
const sound = './assets/' + name + '.wav';
const audio = new Audio(sound);
try {
audio.volume = 0.5;
await audio.play();
} catch (err) {
return false;
}
}
// Handle leaving the room
function handleLeave() {
connectedUser = null;
remoteVideo.srcObject = null;
if (thisConnection) {
thisConnection.close();
thisConnection = null;
}
window.location.href = '/';
}
// Handle and display errors
function handleError(message, error = false) {
if (error) console.error(error);
sound('notify');
Swal.fire({
title: 'Warning',
text: message,
icon: 'warning',
confirmButtonText: 'OK',
showClass: { popup: 'animate__animated animate__fadeInDown' },
hideClass: { popup: 'animate__animated animate__fadeOutUp' },
});
}
// Send messages to the server
function sendMsg(message) {
if (connectedUser) {
message.name = connectedUser;
}
socket.emit('message', message);
}
// Clean up before window close or reload
window.onbeforeunload = () => {
handleHangUpClick();
};
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This favicon was generated using the following font:
- Font Title: Leckerli One
- Font Author: Copyright (c) 2011 Gesine Todt (www.gesine-todt.de hallo@gesine-todt.de), with Reserved Font Names "Leckerli"
- Font Source: https://fonts.gstatic.com/s/leckerlione/v20/V8mCoQH8VCsNttEnxnGQ-1itLZxcBtItFw.ttf
- Font License: SIL Open Font License, 1.1 (http://scripts.sil.org/OFL))
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{
"name": "",
"short_name": "",
"icons": [
{ "src": "/android-chrome-192x192.png", "sizes": "192x192", "type": "image/png" },
{ "src": "/android-chrome-512x512.png", "sizes": "512x512", "type": "image/png" }
],
"theme_color": "#ffffff",
"background_color": "#ffffff",
"display": "standalone"
}
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<!doctype html>
<html lang="en">
<head>
<title>Call-me</title>
<!-- Meta Information -->
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<!-- https://favicon.io/favicon-generator/ -->
<link rel="apple-touch-icon" sizes="180x180" href="/favicon/apple-touch-icon.png" />
<link rel="icon" type="image/png" sizes="32x32" href="/favicon/favicon-32x32.png" />
<link rel="icon" type="image/png" sizes="16x16" href="/favicon/favicon-16x16.png" />
<link rel="manifest" href="/favicon/site.webmanifest" />
<!-- Link to Bootstrap CSS -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap/dist/css/bootstrap.min.css" />
<!-- Link to Font Awesome CSS for icons -->
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.1.1/css/all.min.css" />
<!-- Link to your custom CSS file -->
<link rel="stylesheet" href="./style.css" />
<!-- Link to SweetAlert CSS file -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/sweetalert2@11.4.8/dist/sweetalert2.min.css" />
<!-- ink to Animate CSS file -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/animate.css/animate.min.css" />
</head>
<body>
<!-- Sign-in Page -->
<div id="signInPage" class="container text-center center">
<div class="container mt-5">
<div class="row justify-content-center">
<div class="col-md-6">
<div class="card">
<div class="card-header"><h1>Call-me</h1></div>
<div class="card-body">
<!-- Sign-in Form -->
<form>
<div class="mb-3">
<!-- Input field for entering the username -->
<input
id="usernameIn"
type="email"
class="form-control"
id="email"
placeholder="Enter username"
required
autofocus
/>
</div>
<!-- Sign-in button -->
<button id="signInBtn" type="submit" class="btn btn-primary">Sign In</button>
</form>
</div>
</div>
</div>
</div>
</div>
</div>
<!-- Room Page -->
<div class="container text-center center">
<div id="roomPage">
<!-- Local video element (user's video) -->
<div id="localVideoContainer">
<video id="localVideo"></video>
<span id="localUsername"></span>
</div>
<!-- Remote video element (video from the other user) -->
<video id="remoteVideo"></video>
<div class="row text-center">
<div class="col-md-12">
<div class="mb-3">
<!-- Input field for entering the username to call -->
<input
id="callUsernameIn"
type="text"
class="form-control"
placeholder="Username to call"
/>
</div>
<!-- Button to hide/show the local video -->
<button
id="hideBtn"
class="btn btn-custom btn-primary btn-m"
data-toggle="tooltip"
data-placement="top"
title="Toggle hide me"
>
<i class="fas fa-eye-slash"></i>
</button>
<!-- Button to initiate a video call -->
<button
id="callBtn"
class="btn btn-custom btn-success btn-m"
data-toggle="tooltip"
data-placement="top"
title="Call"
>
<i class="fas fa-phone"></i>
</button>
<!-- Button to hang up the call -->
<button
id="hangUpBtn"
class="btn btn-custom btn-danger btn-m"
data-toggle="tooltip"
data-placement="top"
title="Hang up"
>
<i class="fas fa-phone-slash"></i>
</button>
</div>
</div>
</div>
</div>
<!-- JavaScript libraries for WebSocket and custom client code -->
<script src="/socket.io/socket.io.js"></script>
<script src="client.js"></script>
<!-- Include SweetAlert JS file -->
<script src="https://cdn.jsdelivr.net/npm/sweetalert2@11.4.8/dist/sweetalert2.all.min.js"></script>
<!-- Include Bootstrap JavaScript file -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
<!-- Initialize tooltips -->
<script>
document.addEventListener('DOMContentLoaded', function () {
// Initialize tooltips
var tooltipTriggerList = [].slice.call(document.querySelectorAll('[data-toggle="tooltip"]'));
var tooltipList = tooltipTriggerList.map(function (tooltipTriggerEl) {
return new bootstrap.Tooltip(tooltipTriggerEl);
});
});
</script>
</body>
</html>
+133
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/* Import font-family */
@import url('https://fonts.googleapis.com/css?family=Comfortaa:wght@500&display=swap');
/* Variables */
:root {
--border-radius: 10px;
}
/* Global Styles */
* {
outline: none;
font-family: 'Comfortaa';
}
html,
body {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
overflow: hidden; /* Prevent scrolling if the image is larger than the viewport */
background: url('background.jpg') center/cover no-repeat; /* Consolidate background properties */
}
/* General Card Styles */
.card {
max-width: 400px !important;
margin: 0 auto !important;
color: #fff !important;
font-weight: bold !important;
border: none !important;
border-radius: 10px !important;
background: rgb(0 0 0 / 7%) !important;
}
/* Video Styles */
video {
width: 100%;
height: auto;
border: none;
border-radius: var(--border-radius);
object-fit: contain;
}
/* Local Video Styles */
#localVideoContainer {
position: absolute;
top: 10px;
left: 20px;
width: 15vw;
height: 15vh;
border-radius: var(--border-radius);
border: none;
}
#localUsername {
position: absolute;
top: 0px;
left: 0px;
color: #fff;
font-size: x-small;
border-radius: 5px;
margin: 5px;
}
/* Remote Video Styles */
#remoteVideo {
width: 100%;
height: auto;
background: rgba(0, 0, 0, 0.5);
border-radius: var(--border-radius);
border: none;
}
/* Hidden Elements */
.hide {
display: none;
}
input {
text-align: center;
}
/* Text Input Styles */
#callUsernameIn {
background: rgba(0, 0, 0, 0.5);
color: #fff;
border: none;
}
/* Placeholder Styles */
#callUsernameIn::placeholder {
color: #525252;
opacity: 1;
}
/* Center Alignment */
.center {
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
/* Custom button */
.btn-custom {
height: 48px;
width: 48px;
border-radius: 50px !important;
}
/* Swal2 custom theme */
.swal2-popup {
background-color: #333 !important;
color: #fff !important;
border: none !important;
}
.swal2-popup .swal2-styled:focus {
box-shadow: none !important;
}
.swal2-title {
color: #fff !important;
}
.swal2-actions .swal2-confirm {
background-color: #157346 !important;
color: #fff !important;
border: none !important;
}
.swal2-actions .swal2-cancel {
background-color: #666 !important;
color: #fff !important;
border: none !important;
}