Press n or j to go to the next uncovered block, b, p or k for the previous block.
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); } return new (P || (P = Promise))(function (resolve, reject) { function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } } function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); } step((generator = generator.apply(thisArg, _arguments || [])).next()); }); }; Object.defineProperty(exports, "__esModule", { value: true }); exports.Server = void 0; const tls_1 = require("tls"); const crypto_1 = require("crypto"); const fs_1 = require("fs"); const path_1 = require("path"); const logger_1 = require("./logger"); const util_1 = require("util"); const helpers_1 = require("./helpers"); const network_1 = require("./network"); const address_book_1 = require("./address_book"); const client_1 = require("./client"); const cash_1 = require("./cash"); const contact_1 = require("./contact"); const overlay_1 = require("./overlay"); const VERSION = 1; class Server extends network_1.Network { constructor(_config) { super(); this._config = _config; this._shutdown = false; this._privateKeyDerivation = null; this._server = null; this._clients = new Map(); this._tasks = new Map(); this._logger = logger_1.LoggerFactory.getInstance().createLogger('server'); this._privateKeyFilePath = (0, path_1.join)(this._config.data_dir, 'private_key.pem'); this._publicKeyFilePath = (0, path_1.join)(this._config.data_dir, 'public_key.pem'); this._certificateFilePath = (0, path_1.join)(this._config.data_dir, 'certificate.pem'); this._logger.debug('certificate file path', this._certificateFilePath); this._addressbookFilePath = (0, path_1.join)(this._config.data_dir, 'address_book.json'); this._logger.debug('address book file path', this._addressbookFilePath); this._addressbookBootstrapFilePath = (0, path_1.join)(this._config.data_dir, 'bootstrap.json'); this._addressbook = new address_book_1.AddressBook(this._addressbookFilePath); this._localNode = overlay_1.Node.parse(this._config.id); } start() { this._logger.info('start()'); this._logger.debug('password key derivation start'); this._privateKeyDerivation = (0, helpers_1.passwordKeyDerivation)(process.env.FLUXCHAT_KEY_PASSWORD || 'password'); this._logger.debug('password key derivation done'); // Tasks this._tasks.set('debug_clients', setInterval(this._debugClients.bind(this), 10000)); this._tasks.set('handle_clients', setInterval(this._handleClients.bind(this), 300)); this._tasks.set('ping_clients', setInterval(this._pingClients.bind(this), 60000)); this._tasks.set('save', setInterval(this.save.bind(this), 60000)); this._tasks.set('contact_address_book', setTimeout(this._contactAddressBook.bind(this), 10000)); // Address Book this._addressbook.load(); this._addressbook.loadBootstrap(this._addressbookBootstrapFilePath); // TLS Server this._logger.info('start TLS server'); const options = { key: [{ pem: (0, fs_1.readFileSync)(this._privateKeyFilePath), passphrase: this._privateKeyDerivation, }], cert: (0, fs_1.readFileSync)(this._certificateFilePath), }; this._server = (0, tls_1.createServer)(options, this._onServerConnection.bind(this)); this._server.listen(this._config.port, this._config.address, this._onServerListen.bind(this)); this._server.on('close', this._onServerClose.bind(this)); this._server.on('error', this._onServerError.bind(this)); this._server.on('drop', this._onServerDrop.bind(this)); } save() { this._logger.info('save()'); if (this._addressbook) { this._addressbook.save(); } } shutdown(reason) { this._logger.info('shutdown()', reason); this._shutdown = true; this._logger.info('shutdown tasks'); for (const [name, task] of this._tasks) { this._logger.debug((0, util_1.format)('task %s', name)); clearInterval(task); } this._logger.info('shutdown clients'); for (const [, client] of this._clients) { this._logger.debug((0, util_1.format)('client %s', client.uuid)); client.socket.destroy(); } if (this._server) { this._logger.info('shutdown TLS server'); this._server.close(); this._server = null; } } _onServerListen() { this._logger.debug('_onListen()'); } _onServerConnection(socket) { this._logger.info('_onConnection()'); this._logger.debug((0, util_1.format)('address: %s', socket.address())); this._logger.debug((0, util_1.format)('authorized: %s', socket.authorized)); this._logger.debug((0, util_1.format)('authorizationError: %s', socket.authorizationError)); this._logger.debug((0, util_1.format)('encrypted: %s', socket.encrypted)); // this._logger.debug(f('getCipher() %s', socket.getCipher())); this._logger.debug((0, util_1.format)('cipher version: %s', socket.getCipher().version)); this._logger.debug((0, util_1.format)('remoteAddress: %s:%d', socket.remoteAddress, socket.remotePort)); this._logger.debug((0, util_1.format)('localAddress: %s:%d', socket.localAddress, socket.localPort)); const client = new client_1.Client(); const connectedClient = client; client.connMode = client_1.ConnectionMode.Connected; client.connMsg = 'connected, incoming'; client.dirMode = client_1.Direction.Inbound; client.socket = socket; this._clientBindEvents(connectedClient); this._clients.set(client.uuid, connectedClient); } _onServerClose() { this._logger.debug('_onServerClose()'); } _onServerError(error) { this._logger.error((0, util_1.format)('_onServerError() %s', error.message)); this.shutdown(error.message); } _onServerDrop(socket) { this._logger.debug((0, util_1.format)('_onServerDrop(%s) %s:%d', typeof socket, socket.remoteAddress, socket.remotePort)); } _onClientConnect(client) { this._logger.debug((0, util_1.format)('_onClientConnect(%s)', client.uuid)); } _onClientReady(client) { this._logger.debug((0, util_1.format)('_onClientReady(%s)', client)); client.connMode = client_1.ConnectionMode.Connected; client.connMsg = 'connected, outgoing'; } _onClientData(client, data) { this._logger.debug((0, util_1.format)('_onClientData(%s)', client)); this._logger.debug((0, util_1.format)('data: %d', data.length)); this._logger.debug((0, util_1.format)('data: %d', data.length)); const commands = this._parseRaw(data); for (const command of commands) { this._logger.debug((0, util_1.format)('command: %s', command)); this._clientHandleCommand(client, command); } } _onClientData2(client, data) { this._logger.debug((0, util_1.format)('_onClientData2(%s)', client)); } _onClientEnd(client) { this._logger.debug((0, util_1.format)('_onClientEnd(%s)', client)); this._clients.delete(client.uuid); client.reset(); } _onClientClose(client, hadError) { this._logger.debug((0, util_1.format)('_onClientClose(%s, %s)', client, hadError)); this._clients.delete(client.uuid); client.reset(); } _onClientError(client, error) { this._logger.error((0, util_1.format)('_onClientError(%s, %s)', client, error.message)); } _onClientTimeout(client, socket) { this._logger.warn((0, util_1.format)('_onClientTimeout(%s, %s)', client, typeof socket)); } _debugClients() { this._logger.info((0, util_1.format)('_debugClients() -> %d', this._clients.size)); for (const [c_uuid, client] of this._clients) { this._logger.debug((0, util_1.format)('debug client %s: %d %s', c_uuid, client.auth, client.connMsg)); } } _handleClients() { // this._logger.info('_handleClients()'); var _a; for (const [c_uuid, client] of this._clients) { // this._logger.debug(f('handle client %s', c_uuid)); switch (client.connMode) { case client_1.ConnectionMode.Disconnected: this._logger.debug((0, util_1.format)('handle client %s, disconnected: %s', c_uuid, client.connMsg)); this._clients.delete(client.uuid); (_a = client.socket) === null || _a === void 0 ? void 0 : _a.destroy(); client.reset(); break; case client_1.ConnectionMode.Connecting: this._logger.debug((0, util_1.format)('handle client %s, connecting', c_uuid)); break; case client_1.ConnectionMode.Connected: this._logger.debug((0, util_1.format)('handle client, auth: %d', client.auth)); if ((client.auth & client_1.AuthLevel.SentChallenge) == 0) { this._logger.debug((0, util_1.format)('send CHALLENGE to client %s', c_uuid)); const challenge = (0, crypto_1.randomUUID)(); const challenge_b = Buffer.from(challenge, 'utf8'); client.cash = new cash_1.Cash(challenge_b, this._config.challenge.min); client.auth |= client_1.AuthLevel.SentChallenge; this._logger.debug((0, util_1.format)('client auth: %d', client.auth)); this._clientSendChallenge(client, challenge); } else if ((client.auth & client_1.AuthLevel.ReceivedChallenge) != 0 && (client.auth & client_1.AuthLevel.SentId) == 0) { this._logger.debug((0, util_1.format)('send ID to client %s', c_uuid)); client.auth |= client_1.AuthLevel.SentId; this._logger.debug((0, util_1.format)('client auth: %d', client.auth)); if (client.challenge.proof !== null && client.challenge.nonce !== null) { this._clientSendId(client, client.challenge.proof, client.challenge.nonce); } } else if (client.auth == client_1.AuthLevel.Authenticated) { this._logger.debug((0, util_1.format)('client %s, authenticated', c_uuid)); client.connMode = client_1.ConnectionMode.Authenticated; } // TODO: check for timeout break; case client_1.ConnectionMode.Authenticated: // this._logger.debug(f('handle client %s, authenticated', c_uuid)); break; default: this._logger.warn((0, util_1.format)('handle client %s, unknown connection mode %d', c_uuid, client.connMode)); } } } _pingClients() { this._logger.info('_pingClients()'); for (const [c_uuid, client] of this._clients) { this._logger.debug((0, util_1.format)('client %s', c_uuid)); this._clientSendPing(client); } } _contactAddressBook() { this._logger.info('_contactAddressBook()'); this._logger.info('getAll()'); const _entries = this._addressbook.getAll(); this._logger.debug((0, util_1.format)('entries %s', _entries.size)); this._addressbook.getAll().forEach((client) => { this._logger.debug((0, util_1.format)('client %s', client.uuid)); if (!client.hasContact()) { return; } if (!client.socket) { this._logger.debug((0, util_1.format)('client %s, socket is null', client.uuid)); this._clientConnect(client); } }); } _clientConnect(client) { this._logger.info((0, util_1.format)('_clientConnect(%s) -> %s:%s', client, client.address, client.port)); const options = { host: client.address, port: client.port, rejectUnauthorized: false, }; const connectedClient = client; client.connMode = client_1.ConnectionMode.Connecting; client.connMsg = 'connecting, outgoing'; client.dirMode = client_1.Direction.Outbound; client.socket = (0, tls_1.connect)(options, this._onClientConnect.bind(this, client)); this._clientBindEvents(connectedClient); this._clients.set(client.uuid, connectedClient); } _clientBindEvents(client) { client.socket.on('ready', this._onClientReady.bind(this, client)); client.socket.on('data', this._onClientData.bind(this, client)); client.socket.on('end', this._onClientEnd.bind(this, client)); client.socket.on('close', this._onClientClose.bind(this, client)); client.socket.on('error', this._onClientError.bind(this, client)); client.socket.on('timeout', this._onClientTimeout.bind(this, client)); } _clientHandleCommand(client, command) { return __awaiter(this, void 0, void 0, function* () { this._logger.debug((0, util_1.format)('_clientHandleCommand(%s, %s)', client, command)); //ConnectionMode.Authenticated if (command.group >= 2 && client.auth != client_1.AuthLevel.Authenticated) { this._logger.warn((0, util_1.format)('client %s not authenticated: %d', client.uuid, client.auth)); client.connMode = client_1.ConnectionMode.Disconnected; client.connMsg = 'not authenticated'; return; } switch (command.group) { case 0: // Basic switch (command.command) { case 0: // OK this._logger.debug((0, util_1.format)('OK command')); break; default: this._logger.warn((0, util_1.format)('unknown command %d:%d', command.group, command.command)); break; } break; case 1: // Connection, Authentication, etc switch (command.command) { case 1: // CHALLENGE command this._logger.debug((0, util_1.format)('CHALLENGE command: %s', command.args.toString())); if ((client.auth & client_1.AuthLevel.ReceivedChallenge) != 0) { this._logger.warn((0, util_1.format)('client %s already authenticated', client.uuid)); break; } client.auth |= client_1.AuthLevel.ReceivedChallenge; this._logger.debug((0, util_1.format)('client auth: %d', client.auth)); client.challenge.min = command.asInt(0); client.challenge.max = command.asInt(1); client.challenge.data = command.asString(2); if (client.challenge.data.length > 36) { this._logger.warn((0, util_1.format)('client %s challenge data too long', client.uuid)); client.connMode = client_1.ConnectionMode.Disconnected; client.connMsg = 'challenge data too long'; break; } if (client.challenge.min > this._config.challenge.max) { this._logger.warn((0, util_1.format)('client %s challenge min too long: %d > %d', client.uuid, client.challenge.min, this._config.challenge.max)); client.connMode = client_1.ConnectionMode.Disconnected; client.connMsg = 'challenge min is too big'; } const challengeData = Buffer.from(client.challenge.data); const cash = new cash_1.Cash(challengeData, client.challenge.min); this._logger.debug((0, util_1.format)('mine cash: %s', cash)); const cycles = cash.mine(); this._logger.debug((0, util_1.format)('mine done: %d', cycles)); client.challenge.proof = cash.proof; client.challenge.nonce = cash.nonce; this._logger.debug((0, util_1.format)('cash.min: %s', client.challenge.min)); this._logger.debug((0, util_1.format)('cash.max: %s', client.challenge.max)); this._logger.debug((0, util_1.format)('cash.data: %s', client.challenge.data)); this._logger.debug((0, util_1.format)('cash.proof: %s', cash.proof)); this._logger.debug((0, util_1.format)('cash.nonce: %s', cash.nonce)); break; case 2: // ID command this._logger.debug((0, util_1.format)('ID command')); if ((client.auth & client_1.AuthLevel.ReceivedChallenge) == 0) { this._logger.warn((0, util_1.format)('client %s not received challenge', client.uuid)); break; } if ((client.auth & client_1.AuthLevel.ReceivedId) != 0) { this._logger.warn((0, util_1.format)('client %s already authenticated', client.uuid)); break; } const cVersion = command.asInt(0); const cId = command.asString(1); const cContact = command.asString(2); const cProof = command.asString(3); const cNonce = command.asInt(4); this._logger.debug((0, util_1.format)('client version: %s', cVersion)); this._logger.debug((0, util_1.format)('client id: %s', cId)); this._logger.debug((0, util_1.format)('client contact: %s', cContact)); this._logger.debug((0, util_1.format)('client proof: %s', cProof)); this._logger.debug((0, util_1.format)('client nonce: %s', cNonce)); // Local if (this._localNode.equals(cId)) { this._logger.warn((0, util_1.format)('client %s is local node', client.uuid)); client.connMode = client_1.ConnectionMode.Disconnected; client.connMsg = 'client is local node'; break; } // Version if (VERSION != cVersion) { this._logger.warn((0, util_1.format)('client %s version mismatch: %s != %s', client.uuid, VERSION, cVersion)); client.connMode = client_1.ConnectionMode.Disconnected; client.connMsg = 'version mismatch'; break; } // Challenge if (client.cash === null) { this._logger.warn((0, util_1.format)('client %s cash is null', client.uuid)); client.connMode = client_1.ConnectionMode.Disconnected; client.connMsg = 'cash is null'; break; } this._logger.debug('cash.verify start'); const verified = client.cash.verify(cProof, cNonce); this._logger.debug('cash.verify end'); if (!verified) { this._logger.warn((0, util_1.format)('client %s cash verify failed', client.uuid)); client.connMode = client_1.ConnectionMode.Disconnected; client.connMsg = 'cash verify failed'; break; } // Contact const peerAddrInfo = client.socket.address(); const contact = yield contact_1.Contact.resolve(cContact, peerAddrInfo.address); let cSwitch = false; let _client = null; switch (client.dirMode) { case client_1.Direction.Inbound: // Client is incoming this._logger.debug((0, util_1.format)('client %s, inbound', client.uuid)); if (contact.is_valid) { // Client sent contact info const cAddress = contact.address; const cPort = contact.port; _client = this._addressbook.getClientById(cId); if (_client === null) { this._logger.debug((0, util_1.format)('client not found by ID (A)')); _client = this._addressbook.getClientByAddrPort(cAddress, cPort); if (_client === null) { this._logger.debug((0, util_1.format)('client not found by Addr:Port (B)')); _client = new client_1.Client(); _client.id = cId; _client.address = cAddress; _client.port = cPort; _client.dirMode = client.dirMode; _client.debugAdd = `id command, incoming, contact infos, not found by id, not found by addr:port, original: ${client.debugAdd}`; this._addressbook.addClient(_client); } else { this._logger.debug((0, util_1.format)('client found (B)')); } } else { this._logger.debug((0, util_1.format)('client found (A)')); } _client.address = cAddress; _client.port = cPort; } else { // Client sent no contact info _client = this._addressbook.getClientById(cId); if (_client === null) { this._logger.debug((0, util_1.format)('client not found by ID (C)')); _client = new client_1.Client(); _client.id = cId; _client.dirMode = client.dirMode; _client.debugAdd = `id command, incoming, no contact infos, not found by id, original: ${client.debugAdd}`; this._addressbook.addClient(_client); } else { this._logger.debug((0, util_1.format)('client not found by ID (C)')); } } cSwitch = true; break; case client_1.Direction.Outbound: // Client is outgoing this._logger.debug((0, util_1.format)('client is outgoing')); // TODO: possible wrong approach _client = client; if (contact.is_valid) { this._logger.debug((0, util_1.format)('client has contact infos')); // Client sent contact info const cAddress = contact.address; const cPort = contact.port; _client.address = cAddress; _client.port = cPort; } else { this._logger.debug('client has NO contact infos'); } break; default: const msg = (0, util_1.format)('client %s, unknown direction mode %d', client.uuid, client.dirMode); this._logger.error(msg); throw new Error(msg); } if (_client.id === undefined || _client.id === null) { _client.id = cId; } this._logger.debug((0, util_1.format)('Client A: %s', client)); this._logger.debug((0, util_1.format)('Client B: %s', _client)); _client.refreshSeenAt(); _client.refreshUsedAt(); _client.incMeetings(); _client.socket = client.socket; _client.connMode = client.connMode; _client.auth |= client.auth | client_1.AuthLevel.ReceivedId; this._logger.debug((0, util_1.format)('client auth: %d', client.auth)); // TODO actions _client.challenge = client.challenge; this._addressbook.changed(); if (cSwitch && !client.equals(_client)) { this._logger.debug((0, util_1.format)('switch client %s', client.uuid)); // TODO: rebind all socket events this._clients.delete(client.uuid); this._clients.set(_client.uuid, _client); } this._clientSendOk(client); this._logger.debug((0, util_1.format)('Client Z: %s', _client)); break; case 3: // PING command this._logger.debug((0, util_1.format)('PING command')); this._clientSendPong(client); break; case 4: // PONG command this._logger.debug((0, util_1.format)('PONG command')); break; } break; case 2: // Overlay, Address Book, Routing, etc switch (command.command) { case 1: // GET_NEAREST_TO command this._logger.debug((0, util_1.format)('GET_NEAREST_TO command')); const cNode = overlay_1.Node.parse(command.asString(0)); this._logger.debug((0, util_1.format)('node: %s', cNode)); const clients = this._addressbook.getNearestTo(cNode, true); const clientIds = clients.map((client) => { return `${client.uuid}:${client.address}:${client.port}`; }); this._clientSendGetNearestToResponse(client, clientIds); break; case 2: // GET_NEAREST_TO RESPONSE command this._logger.debug((0, util_1.format)('GET_NEAREST_TO RESPONSE command')); break; case 3: // REQUEST PUBLIC KEY FOR NODE command this._logger.debug((0, util_1.format)('REQUEST PUBLIC KEY FOR NODE command')); break; case 4: // RESPONSE PUBLIC KEY FOR NODE command this._logger.debug((0, util_1.format)('RESPONSE PUBLIC KEY FOR NODE command')); break; } break; case 3: // Mail switch (command.command) { case 1: // SEND MAIL command this._logger.debug((0, util_1.format)('SEND MAIL command')); break; } break; default: this._logger.warn((0, util_1.format)('unknown command %d:%d', command.group, command.command)); break; } }); } _clientSendCommand(client, command) { this._logger.debug((0, util_1.format)('_clientSendCommand(%s, %s)', client.uuid, command)); const data = this._serializeCommand(command); // this._logger.debug(f('data', data)); this._logger.debug((0, util_1.format)('data hex: %s', data.toString('hex'))); // this._logger.debug(f('data str: "%s"', data.toString())); this._logger.debug((0, util_1.format)('write socket: %d', data.length)); client.socket.write(data); } _clientSendOk(client) { this._logger.debug((0, util_1.format)('_clientSendOk(%s)', client)); const command = new network_1.Command(0, 0); this._clientSendCommand(client, command); } _clientSendChallenge(client, challenge) { this._logger.debug((0, util_1.format)('_clientSendChallenge(%s, %s)', client, challenge)); const command = new network_1.Command(1, 1, [ this._config.challenge.min, this._config.challenge.max, challenge, ]); this._clientSendCommand(client, command); } _clientSendId(client, proof, nonce) { this._logger.debug((0, util_1.format)('_clientSendId(%s, %s, %d)', client, proof, nonce)); const command = new network_1.Command(1, 2, [ VERSION, this._config.id, this._config.contact, proof, nonce, ]); this._clientSendCommand(client, command); } _clientSendPing(client) { this._logger.debug((0, util_1.format)('_clientSendPing(%s)', client)); const command = new network_1.Command(1, 3); this._clientSendCommand(client, command); } _clientSendPong(client) { this._logger.debug((0, util_1.format)('_clientSendPong(%s)', client)); const command = new network_1.Command(1, 4); this._clientSendCommand(client, command); } _clientSendGetNearestToResponse(client, clientIds) { this._logger.debug((0, util_1.format)('_clientSendGetNearestTo(%s, %s)', client, clientIds)); const command = new network_1.Command(2, 1, clientIds); this._clientSendCommand(client, command); } } exports.Server = Server; |