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p2chat.v2.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>PeerJS Chat App</title>
<script src="https://unpkg.com/peerjs@1.5.2/dist/peerjs.min.js"></script>
<script>
class KeyPair {
constructor() {
this.publicKey = null;
this.privateKey = null;
}
async generateKeyPair() {
try {
const keyPair = await window.crypto.subtle.generateKey(
{
name: "RSA-OAEP",
modulusLength: 4096,
publicExponent: new Uint8Array([1, 0, 1]),
hash: "SHA-256",
},
true,
["encrypt", "decrypt"]
);
this.publicKey = await window.crypto.subtle.exportKey(
"spki",
keyPair.publicKey
);
this.privateKey = await window.crypto.subtle.exportKey(
"pkcs8",
keyPair.privateKey
);
} catch (error) {
console.error("Error generating key pair:", error);
}
}
async encrypt(data) {
try {
const publicKey = await window.crypto.subtle.importKey(
"spki",
this.publicKey,
{
name: "RSA-OAEP",
hash: "SHA-256",
},
true,
["encrypt"]
);
const ciphertext = await window.crypto.subtle.encrypt(
{
name: "RSA-OAEP",
},
publicKey,
new TextEncoder().encode(data)
);
return KeyPair.arrayBufferToHex(ciphertext);
} catch (error) {
console.error("Error encrypting data:", error);
}
}
static async encryptWithPublicKey(publicKey, data) {
try {
const importedPublicKey = await window.crypto.subtle.importKey(
"spki",
KeyPair.hexToArrayBuffer(publicKey),
{
name: "RSA-OAEP",
hash: "SHA-256",
},
true,
["encrypt"]
);
const ciphertext = await window.crypto.subtle.encrypt(
{
name: "RSA-OAEP",
},
importedPublicKey,
new TextEncoder().encode(data)
);
return KeyPair.arrayBufferToHex(ciphertext);
} catch (error) {
console.error("Error encrypting data with public key:", error);
}
}
async decrypt(encryptedData) {
try {
const privateKey = await window.crypto.subtle.importKey(
"pkcs8",
this.privateKey,
{
name: "RSA-OAEP",
hash: "SHA-256",
},
true,
["decrypt"]
);
const decryptedData = await window.crypto.subtle.decrypt(
{
name: "RSA-OAEP",
},
privateKey,
KeyPair.hexToArrayBuffer(encryptedData)
);
return new TextDecoder().decode(decryptedData);
} catch (error) {
console.error("Error decrypting data:", error);
}
}
exportHexKeys() {
const hexPublicKey = KeyPair.arrayBufferToHex(this.publicKey);
const hexPrivateKey = KeyPair.arrayBufferToHex(this.privateKey);
return { publicKey: hexPublicKey, privateKey: hexPrivateKey };
}
importHexKeys(hexPublicKey, hexPrivateKey) {
this.publicKey = this.hexToArrayBuffer(hexPublicKey);
this.privateKey = this.hexToArrayBuffer(hexPrivateKey);
}
static arrayBufferToHex(buffer) {
const view = new DataView(buffer);
let hexString = "";
for (let i = 0; i < view.byteLength; i++) {
const byte = view.getUint8(i);
hexString += byte.toString(16).padStart(2, "0");
}
return hexString;
}
static hexToArrayBuffer(hexString) {
const buffer = new ArrayBuffer(hexString.length / 2);
const view = new DataView(buffer);
for (let i = 0; i < hexString.length; i += 2) {
const byte = parseInt(hexString.substr(i, 2), 16);
view.setUint8(i / 2, byte);
}
return buffer;
}
}
</script>
<style>
:root {
--background-color: #4a445b;
--background-color-less-saturated: #494454;
--background-highlight: #7b748d;
--background-darker-color: #3f3c47;
--selected-color: #6e6880;
--text-color: #f6ebff;
--text-color-faded: #beb3c6;
--contrast-color: #9581eb;
--contrast-color-alt: #59526e;
}
body,
html {
font-family: Verdana, sans-serif;
padding: 0;
width: 100%;
height: 100%;
margin: 0;
}
#sidebar {
position: fixed;
width: 200px;
height: 100%;
background: #000;
background-color: var(--background-color-less-saturated);
border-color: var(--contrast-color);
border-width: 0px;
border-right-style: solid;
border-right-width: 4px;
}
.sidebar-element {
width: 190px;
padding-top: 5px;
padding-bottom: 5px;
padding-left: 10px;
overflow-x: dot-dot-dash;
user-select: none;
color: var(--text-color);
}
#content-wrapper {
margin-left: 203px;
width: calc(100% - 203px);
height: 100%;
position: fixed;
background-color: var(--background-color);
color: var(--text-color);
overflow: auto;
z-index: 1;
}
.message-container {
width: 100%;
position: absolute;
bottom: 5px;
}
#message {
width: 99%;
}
</style>
</head>
<body>
<div id="sidebar">
<div class="sidebar-element">Select User <br />(coming soon)</div>
<div class="sidebar-element">
<label>Your ID:</label
><input type="text" id="your-id" readonly /><button
onclick="generatePeerId()"
>
Generate ID</button
><button onclick="copyIdToClipboard()">Copy ID</button>
</div>
<div class="sidebar-element">
<label>input ID:</label><input type="text" id="other-id" />
</div>
<div class="sidebar-element">
Connected:<input
type="checkbox"
onclick="return false;"
onkeydown="e = e || window.event; if(e.keyCode !== 9) return false;"
id="connection-indicator"
/>
</div>
</div>
<div id="content-wrapper">
<div id="chat-history"></div>
<div class="message-container">
<input
type="text"
id="message"
placeholder="message"
onkeypress="sendMessage(event)"
/>
</div>
</div>
<script>
/*
Connection data format:
*/
/*const defaultData = {
type: "default",
status: "message sent successfully",
ok: true,
message: "this is a test message",
sender: {
signedName: "---STUFF---",
insecureName: "Other"
}
}
var peer = new Peer();
var conn;
peer.on()*/
//====================
//OLD data
//=================s===
const keyPair = new KeyPair();
let peer;
let conn;
keyPair.generateKeyPair().then(async () => {
const { publicKey, privateKey } = keyPair.exportHexKeys();
console.log("Public Key:", publicKey);
peer = new Peer(publicKey);
peer.on("open", function (id) {
document.getElementById("your-id").value = id;
});
peer.on("connection", function (connection) {
conn = connection;
setConnectionIndicator(true);
displayMessage("Connection established with " + conn.peer);
conn.on("data", function (data) {
doData(data);
});
});
peer.on("close", function () {
setConnectionIndicator(false);
});
peer.on("disconnected", function () {
setConnectionIndicator(false);
});
peer.on("error", function () {
setConnectionIndicator(false);
});
});
function generatePeerId() {
var newPeerId = prompt(
"Enter your desired peer ID (alphanumeric characters, dashes, and underscores are allowed):"
);
peer.destroy();
peer = new Peer(newPeerId);
}
function copyIdToClipboard() {
var copyText = document.getElementById("your-id");
copyText.select();
document.execCommand("copy");
alert("ID copied to clipboard!");
}
function sendMessage(e) {
if (e.key != "Enter") return;
var message = document.getElementById("message").value;
if (conn && message) {
conn.send({
type: "message",
message: message,
ok: true,
});
displayMessage("You: " + message);
document.getElementById("message").value = "";
}
}
function doData(data) {
if (typeof data == "String") {
displayMessage(data);
return;
}
console.log(data);
if (data.ok) {
if (data.type == "message") {
displayMessage((data.sender || "Other") + ": " + data.message);
}
}
}
function setConnectionIndicator(status) {
document.getElementById("connection-indicator").checked = status;
}
function displayMessage(message) {
var chatHistory = document.getElementById("chat-history");
var messageElement = document.createElement("p");
messageElement.textContent = message;
chatHistory.appendChild(messageElement);
}
document
.getElementById("other-id")
.addEventListener("input", function (event) {
var otherPeerId = event.target.value;
if (otherPeerId) {
conn = peer.connect(otherPeerId);
conn.on("open", function () {
displayMessage("Connection established with " + otherPeerId);
});
conn.on("data", function (data) {
doData(data);
});
}
});
</script>
</body>
</html>