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// general imports
const $ = require('jquery');
const encryption = require('./2_encryption');
const wordList = require('./3_wordlist');
const pinInput = require('./4_input_pin');
const xkcdPassword = require('xkcd-password');
// setup vars
const host = '127.0.0.1';
let peerId;
let passphrase;
let connectedPeer;
let connectedPeers = []; // TODO: Save new peers in array
// setup generator
const generator = new xkcdPassword();
generator.initWithWordList(wordList);
// setup encryption
(async () => {
peerId = await generator.generate().then(words => words.join('-'));
encryption.setup();
if (localStorage.getItem('database') === 'success' && await encryption.check()) {
pinInput.init(async pin => {
try {
await encryption.decryptPrivate(await encryption.getPrivate(), pin);
chat()
} catch (e) {
// TODO: 3 passphrase tries
console.error('Passphrase is wrong!');
pinInput.failure();
}
});
} else {
pinInput.init(pin => {
console.log('[LOG] No existing keys found! Generating...');
pinInput.generate();
passphrase = pin;
(async () => await encryption.generate(peerId, passphrase).then(() => chat()))()
});
}
})();
/**
* Initializes chat functions
*/
function chat() {
// hide pin input and display chat
$('#enter_pin').hide();
$('#chat').fadeIn();
// start the peer
const peer = new Peer(peerId, {host: host, port: 8080, path: '/api', debug: 0});
// Peer events
peer.on('open', id => console.log('[LOG] Your ID is', id));
peer.on('error', err => console.error(err));
peer.on('connection', conn => {
connectedPeer = conn;
console.log('[LOG] Connected with', connectedPeer.peer);
connectedPeer.on('open', async () => transferKey(await encryption.getPublic()));
connectedPeer.on('data', async message => {
console.log('[LOG] Received new message!');
await receivedMessage(message);
})
});
/**
* Connects to a peer via his id
* @param id
* @returns {Promise<void>}
*/
async function connect(id) {
const connectionId = (await generator.generate()).join('-');
console.log('[LOG] Connecting to', id);
console.log('[LOG] Your connection ID is', connectionId);
connectedPeer = peer.connect(id, {label: connectionId, reliable: true});
console.log('[LOG] Connected with', connectedPeer.peer);
connectedPeer.on('open', async () => transferKey(await encryption.getPublic()));
connectedPeer.on('data', async message => {
console.log('[LOG] Received new message!');
await receivedMessage(message);
})
}
/**
* Sends a message to the peer with which you're currently connected
* @param message
* @returns {Promise<void>}
*/
async function sendMessage(message) {
console.log(`[LOG] Sending message '${message}' to ${connectedPeer.peer}`);
connectedPeer.send({
type: 'text',
data: await encryption.encrypt(message, await encryption.get(connectedPeer.peer))
});
await receivedMessage(message, true);
}
/**
* Transfers the (public) key to the currently connected peer
* @param key
*/
function transferKey(key) {
console.log(`[LOG] Transferring key to ${connectedPeer.peer}`);
connectedPeer.send({type: 'key', data: key});
}
/**
* Renders and processes the incoming messages
* @param message
* @param self
*/
async function receivedMessage(message, self = false) {
if (self) {
$('#messages').append(`<span style="color: green">${message}</span><br>`);
} else {
if (message.type === 'text') {
await encryption.decrypt(message.data, await encryption.get(connectedPeer.peer), await encryption.getPrivate(), passphrase)
.then(plaintext => $('#messages').append(`${plaintext}<br>`));
} else if (message.type === 'key') {
await encryption.store(connectedPeer.peer, message.data)
}
}
}
/**
* Events after load
*/
$(document).ready(() => {
$('#add_peer_id').on('click', async () => await connect($('#peer_id').val()));
$('#send_message').on('click', async () => await sendMessage($('#message').val()));
$('[toggle-contact-modal]').on('click', () => $('#add_contact_modal').toggleClass('is-active'))
});
}
//encryption.test(); // TESTING IF ENCRYPTION WORKS
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