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24 changed files with 4 additions and 1090 deletions

6
dist/index.d.ts vendored
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@ -2,10 +2,6 @@ import Proxy from "./proxy.js";
import Socket from "./socket.js";
import Peer, { DataSocketOptions, PeerOptions, PeerOptionsWithProxy, OnOpen, OnSend, OnReceive, OnClose } from "./peer.js";
import Server from "./server.js";
import DummySocket from "./proxies/multiSocket/dummySocket.js";
import TcpSocket from "./proxies/multiSocket/tcpSocket.js";
import BasicProxy from "./proxies/basic.js";
import MultiSocketProxy from "./proxies/multiSocket.js";
export { Proxy, Socket, Server, Peer, DataSocketOptions, PeerOptions, PeerOptionsWithProxy, OnOpen, OnSend, OnReceive, OnClose, DummySocket, TcpSocket, BasicProxy, MultiSocketProxy, };
export { Proxy, Socket, Server, Peer, DataSocketOptions, PeerOptions, PeerOptionsWithProxy, OnOpen, OnSend, OnReceive, OnClose, };
export declare function createSocket(port: number, host: string): Socket;
export declare function createServer(): Server;

10
dist/index.js vendored
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@ -3,7 +3,7 @@ var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createServer = exports.createSocket = exports.MultiSocketProxy = exports.BasicProxy = exports.TcpSocket = exports.DummySocket = exports.Peer = exports.Server = exports.Socket = exports.Proxy = void 0;
exports.createServer = exports.createSocket = exports.Peer = exports.Server = exports.Socket = exports.Proxy = void 0;
const proxy_js_1 = __importDefault(require("./proxy.js"));
exports.Proxy = proxy_js_1.default;
const socket_js_1 = __importDefault(require("./socket.js"));
@ -12,14 +12,6 @@ const peer_js_1 = __importDefault(require("./peer.js"));
exports.Peer = peer_js_1.default;
const server_js_1 = __importDefault(require("./server.js"));
exports.Server = server_js_1.default;
const dummySocket_js_1 = __importDefault(require("./proxies/multiSocket/dummySocket.js"));
exports.DummySocket = dummySocket_js_1.default;
const tcpSocket_js_1 = __importDefault(require("./proxies/multiSocket/tcpSocket.js"));
exports.TcpSocket = tcpSocket_js_1.default;
const basic_js_1 = __importDefault(require("./proxies/basic.js"));
exports.BasicProxy = basic_js_1.default;
const multiSocket_js_1 = __importDefault(require("./proxies/multiSocket.js"));
exports.MultiSocketProxy = multiSocket_js_1.default;
function createSocket(port, host) {
return new socket_js_1.default({
remotePort: port,

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@ -1,3 +0,0 @@
import Proxy from "../proxy.js";
export default class BasicProxy extends Proxy {
}

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@ -1,9 +0,0 @@
"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const proxy_js_1 = __importDefault(require("../proxy.js"));
class BasicProxy extends proxy_js_1.default {
}
exports.default = BasicProxy;

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@ -1,33 +0,0 @@
/// <reference types="node" />
import Proxy, { ProxyOptions } from "../proxy.js";
import type { TcpSocketConnectOpts } from "net";
import Peer from "../peer.js";
import { PeerEntity } from "./multiSocket/types.js";
export interface MultiSocketProxyOptions extends ProxyOptions {
socketClass?: any;
server: boolean;
allowedPorts?: number[];
}
export default class MultiSocketProxy extends Proxy {
private socketClass;
private _peers;
private _nextPeer;
private _server;
private _allowedPorts;
constructor(options: MultiSocketProxyOptions);
private _socketMap;
get socketMap(): Map<number, number>;
private _sockets;
get sockets(): Map<number, any>;
handleNewPeerChannel(peer: Peer, channel: any): void;
handleClosePeer(peer: Peer): Promise<void>;
get(pubkey: Uint8Array): PeerEntity | undefined;
update(pubkey: Uint8Array, data: Partial<PeerEntity>): void;
createSocket(options: TcpSocketConnectOpts): Promise<typeof this.socketClass>;
private _registerOpenSocketMessage;
private _registerWriteSocketMessage;
private _registerCloseSocketMessage;
private _registerTimeoutSocketMessage;
private _registerErrorSocketMessage;
private _toString;
}

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@ -1,226 +0,0 @@
"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const proxy_js_1 = __importDefault(require("../proxy.js"));
const tcpSocket_js_1 = __importDefault(require("./multiSocket/tcpSocket.js"));
const compact_encoding_1 = require("compact-encoding");
const serialize_error_1 = require("serialize-error");
const b4a_1 = __importDefault(require("b4a"));
const util_js_1 = require("../util.js");
const dummySocket_js_1 = __importDefault(require("./multiSocket/dummySocket.js"));
const socketEncoding = {
preencode(state, m) {
compact_encoding_1.uint.preencode(state, m.id);
compact_encoding_1.uint.preencode(state, m.remoteId);
},
encode(state, m) {
compact_encoding_1.uint.encode(state, m.id);
compact_encoding_1.uint.encode(state, m.remoteId);
},
decode(state, m) {
return {
remoteId: compact_encoding_1.uint.decode(state, m),
id: compact_encoding_1.uint.decode(state, m),
};
},
};
const writeSocketEncoding = {
preencode(state, m) {
socketEncoding.preencode(state, m);
compact_encoding_1.raw.preencode(state, m.data);
},
encode(state, m) {
socketEncoding.encode(state, m);
compact_encoding_1.raw.encode(state, m.data);
},
decode(state, m) {
const socket = socketEncoding.decode(state, m);
return {
...socket,
data: compact_encoding_1.raw.decode(state, m),
};
},
};
const errorSocketEncoding = {
decode(state, m) {
const socket = socketEncoding.decode(state, m);
return {
...socket,
err: (0, serialize_error_1.deserializeError)(compact_encoding_1.json.decode(state, m)),
};
},
};
const nextSocketId = (0, util_js_1.idFactory)(1);
class MultiSocketProxy extends proxy_js_1.default {
socketClass;
_peers = new Map();
_nextPeer = (0, util_js_1.roundRobinFactory)(this._peers);
_server = false;
_allowedPorts = [];
constructor(options) {
super({
createDefaultMessage: false,
...options,
});
if (options.socketClass) {
this.socketClass = options.socketClass;
}
else {
if (options.server) {
this.socketClass = tcpSocket_js_1.default;
}
else {
this.socketClass = dummySocket_js_1.default;
}
}
if (options.server) {
this._server = true;
}
}
_socketMap = new Map();
get socketMap() {
return this._socketMap;
}
_sockets = new Map();
get sockets() {
return this._sockets;
}
handleNewPeerChannel(peer, channel) {
this.update(peer.socket.remotePublicKey, { peer });
this._registerOpenSocketMessage(peer, channel);
this._registerWriteSocketMessage(peer, channel);
this._registerCloseSocketMessage(peer, channel);
this._registerTimeoutSocketMessage(peer, channel);
this._registerErrorSocketMessage(peer, channel);
}
async handleClosePeer(peer) {
for (const item of this._sockets) {
if (item[1].peer.peer === peer) {
item[1].end();
}
}
const pubkey = this._toString(peer.socket.remotePublicKey);
if (this._peers.has(pubkey)) {
this._peers.delete(pubkey);
}
}
get(pubkey) {
if (this._peers.has(this._toString(pubkey))) {
return this._peers.get(this._toString(pubkey));
}
return undefined;
}
update(pubkey, data) {
const peer = this.get(pubkey) ?? {};
this._peers.set(this._toString(pubkey), {
...peer,
...data,
...{
messages: {
...peer?.messages,
...data?.messages,
},
},
});
}
async createSocket(options) {
if (!this._peers.size) {
throw new Error("no peers found");
}
const peer = this._nextPeer();
const socketId = nextSocketId();
const socket = new this.socketClass(socketId, this, peer, options);
this._sockets.set(socketId, socket);
return socket;
}
_registerOpenSocketMessage(peer, channel) {
const self = this;
const message = channel.addMessage({
encoding: {
preencode: compact_encoding_1.json.preencode,
encode: compact_encoding_1.json.encode,
decode: this._server ? compact_encoding_1.json.encode : socketEncoding.decode,
},
async onmessage(m) {
if (self._allowedPorts.length &&
!self._allowedPorts.includes(m.port)) {
self.get(peer.socket.remotePublicKey).messages.errorSocket.send({
id: m.id,
err: new Error(`port ${m.port} not allowed`),
});
return;
}
m = m;
if (self._server) {
new self.socketClass(nextSocketId(), m, self, self.get(peer.socket.remotePublicKey), m).connect();
return;
}
const socket = self._sockets.get(m.id);
if (socket) {
socket.remoteId = m.remoteId;
// @ts-ignore
socket.emit("connect");
}
},
});
this.update(peer.socket.remotePublicKey, {
messages: { openSocket: message },
});
}
_registerWriteSocketMessage(peer, channel) {
const self = this;
const message = channel.addMessage({
encoding: writeSocketEncoding,
onmessage(m) {
self._sockets.get(m.id)?.push(m.data);
},
});
this.update(peer.socket.remotePublicKey, {
messages: { writeSocket: message },
});
}
_registerCloseSocketMessage(peer, channel) {
const self = this;
const message = channel.addMessage({
encoding: socketEncoding,
onmessage(m) {
self._sockets.get(m.id)?.end();
},
});
this.update(peer.socket.remotePublicKey, {
messages: { closeSocket: message },
});
}
_registerTimeoutSocketMessage(peer, channel) {
const self = this;
const message = channel.addMessage({
encoding: socketEncoding,
onmessage(m) {
// @ts-ignore
self._sockets.get(m.id)?.emit("timeout");
},
});
this.update(peer.socket.remotePublicKey, {
messages: { timeoutSocket: message },
});
}
_registerErrorSocketMessage(peer, channel) {
const self = this;
const message = channel.addMessage({
encoding: errorSocketEncoding,
onmessage(m) {
// @ts-ignore
self._sockets.get(m.id)?.emit("error", m.err);
},
});
this.update(peer.socket.remotePublicKey, {
messages: { errorSocket: message },
});
}
_toString(pubkey) {
return b4a_1.default.from(pubkey).toString("hex");
}
}
exports.default = MultiSocketProxy;

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@ -1,20 +0,0 @@
/// <reference types="node" />
import { Callback, Duplex } from "streamx";
import { TcpSocketConnectOpts } from "net";
import MultiSocketProxy from "../multiSocket.js";
import { PeerEntity } from "./types.js";
export default class DummySocket extends Duplex {
private _options;
private _id;
private _proxy;
private _connectTimeout?;
constructor(id: number, manager: MultiSocketProxy, peer: PeerEntity, options: TcpSocketConnectOpts);
private _remoteId;
set remoteId(value: number);
private _peer;
get peer(): any;
_write(data: any, cb: any): Promise<void>;
_destroy(cb: Callback): Promise<void>;
connect(): Promise<void>;
setTimeout(ms: number, cb: Function): void;
}

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@ -1,64 +0,0 @@
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const streamx_1 = require("streamx");
const timers_1 = require("timers");
const util_js_1 = require("../../util.js");
class DummySocket extends streamx_1.Duplex {
_options;
_id;
_proxy;
_connectTimeout;
constructor(id, manager, peer, options) {
super();
this._id = id;
this._proxy = manager;
this._peer = peer;
this._options = options;
// @ts-ignore
this.on("timeout", () => {
if (this._connectTimeout) {
(0, timers_1.clearTimeout)(this._connectTimeout);
}
});
}
_remoteId = 0;
set remoteId(value) {
this._remoteId = value;
this._proxy.socketMap.set(this._id, value);
}
_peer;
get peer() {
return this._peer;
}
async _write(data, cb) {
(await (0, util_js_1.maybeGetAsyncProperty)(this._peer.messages.writeSocket))?.send({
id: this._id,
remoteId: this._remoteId,
data,
});
cb();
}
async _destroy(cb) {
(await (0, util_js_1.maybeGetAsyncProperty)(this._peer.messages.closeSocket))?.send({
id: this._id,
remoteId: this._remoteId,
});
this._proxy.socketMap.delete(this._id);
this._proxy.sockets.delete(this._id);
}
async connect() {
(await (0, util_js_1.maybeGetAsyncProperty)(this._peer.messages.openSocket))?.send({
...this._options,
id: this._id,
});
}
setTimeout(ms, cb) {
if (this._connectTimeout) {
(0, timers_1.clearTimeout)(this._connectTimeout);
}
this._connectTimeout = setTimeout(() => {
cb && cb();
}, ms);
}
}
exports.default = DummySocket;

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@ -1,19 +0,0 @@
/// <reference types="node" />
import { Callback, Duplex } from "streamx";
import { TcpSocketConnectOpts } from "net";
import MultiSocketProxy from "../multiSocket.js";
import { PeerEntity } from "./types.js";
export default class TcpSocket extends Duplex {
private _options;
private _id;
private _remoteId;
private _proxy;
private _socket?;
constructor(id: number, remoteId: number, manager: MultiSocketProxy, peer: PeerEntity, options: TcpSocketConnectOpts);
private _peer;
get peer(): any;
_write(data: any, cb: any): void;
_destroy(cb: Callback): void;
connect(): void;
private _getSocketRequest;
}

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@ -1,89 +0,0 @@
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const streamx_1 = require("streamx");
const net = __importStar(require("net"));
class TcpSocket extends streamx_1.Duplex {
_options;
_id;
_remoteId;
_proxy;
_socket;
constructor(id, remoteId, manager, peer, options) {
super();
this._remoteId = remoteId;
this._proxy = manager;
this._id = id;
this._peer = peer;
this._options = options;
this._proxy.sockets.set(this._id, this);
this._proxy.socketMap.set(this._id, this._remoteId);
}
_peer;
get peer() {
return this._peer;
}
_write(data, cb) {
this._peer.messages.writeSocket?.send({
...this._getSocketRequest(),
data,
});
cb();
}
_destroy(cb) {
this._proxy.sockets.delete(this._id);
this._proxy.socketMap.delete(this._id);
this._peer.messages.closeSocket?.send(this._getSocketRequest());
}
connect() {
this.on("error", (err) => {
this._peer.messages.errorSocket?.send({
...this._getSocketRequest(),
err,
});
});
// @ts-ignore
this.on("timeout", () => {
this._peer.messages.timeoutSocket?.send(this._getSocketRequest());
});
// @ts-ignore
this.on("connect", () => {
this._peer.messages.openSocket?.send(this._getSocketRequest());
});
this._socket = net.connect(this._options);
["timeout", "error", "connect", "end", "destroy", "close"].forEach((event) => {
this._socket?.on(event, (...args) => this.emit(event, ...args));
});
this._socket.pipe(this);
this.pipe(this._socket);
}
_getSocketRequest() {
return {
id: this._id,
remoteId: this._remoteId,
};
}
}
exports.default = TcpSocket;

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@ -1,28 +0,0 @@
import Peer from "../../peer.js";
export interface SocketRequest {
remoteId: number;
id: number;
}
export type CloseSocketRequest = SocketRequest;
export interface WriteSocketRequest extends SocketRequest {
data: Uint8Array;
}
export interface ErrorSocketRequest extends SocketRequest {
err: Error;
}
type Message = {
send: (pubkey: Uint8Array | any) => void;
};
export interface PeerEntityMessages {
keyExchange: Message;
openSocket: Message;
writeSocket: Message;
closeSocket: Message;
timeoutSocket: Message;
errorSocket: Message;
}
export interface PeerEntity {
messages: PeerEntityMessages | Partial<PeerEntityMessages>;
peer: Peer;
}
export {};

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@ -1,2 +0,0 @@
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });

2
dist/proxy.d.ts vendored
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@ -5,7 +5,7 @@ export interface ProxyOptions extends DataSocketOptions {
listen?: boolean;
autostart?: boolean;
}
export default abstract class Proxy {
export default class Proxy {
private _listen;
private _socketOptions;
private _autostart;

4
dist/util.d.ts vendored
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@ -1,4 +0,0 @@
export declare function idFactory(start: number, step?: number, limit?: number): () => number;
export declare function roundRobinFactory<T>(list: Map<string, any>): () => T;
export declare function maybeGetAsyncProperty(object: any): Promise<any>;
export declare function isPromise(obj: Promise<any>): boolean;

41
dist/util.js vendored
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@ -1,41 +0,0 @@
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isPromise = exports.maybeGetAsyncProperty = exports.roundRobinFactory = exports.idFactory = void 0;
function idFactory(start, step = 1, limit = 2 ** 32) {
let id = start;
return function nextId() {
const nextId = id;
id += step;
if (id >= limit)
id = start;
return nextId;
};
}
exports.idFactory = idFactory;
function roundRobinFactory(list) {
let index = 0;
return () => {
const keys = [...list.keys()].sort();
if (index >= keys.length) {
index = 0;
}
return list.get(keys[index++]);
};
}
exports.roundRobinFactory = roundRobinFactory;
async function maybeGetAsyncProperty(object) {
if (typeof object === "function") {
object = object();
}
if (isPromise(object)) {
object = await object;
}
return object;
}
exports.maybeGetAsyncProperty = maybeGetAsyncProperty;
function isPromise(obj) {
return (!!obj &&
(typeof obj === "object" || typeof obj === "function") &&
typeof obj.then === "function");
}
exports.isPromise = isPromise;

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@ -3,18 +3,15 @@
"version": "0.1.0",
"main": "dist/index.js",
"devDependencies": {
"@types/b4a": "^1.6.0",
"@types/node": "^18.11.18",
"@types/streamx": "^2.9.1",
"prettier": "^2.8.2",
"typescript": "^4.9.4"
},
"dependencies": {
"b4a": "^1.6.3",
"buffer": "^6.0.3",
"compact-encoding": "^2.11.0",
"protomux": "^3.4.0",
"serialize-error": "^11.0.0",
"streamx": "^2.13.0"
}
}

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@ -10,10 +10,6 @@ import Peer, {
OnClose,
} from "./peer.js";
import Server from "./server.js";
import DummySocket from "./proxies/multiSocket/dummySocket.js";
import TcpSocket from "./proxies/multiSocket/tcpSocket.js";
import BasicProxy from "./proxies/basic.js";
import MultiSocketProxy from "./proxies/multiSocket.js";
export {
Proxy,
@ -27,10 +23,6 @@ export {
OnSend,
OnReceive,
OnClose,
DummySocket,
TcpSocket,
BasicProxy,
MultiSocketProxy,
};
export function createSocket(port: number, host: string): Socket {

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@ -1,3 +0,0 @@
import Proxy from "../proxy.js";
export default class BasicProxy extends Proxy {}

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@ -1,276 +0,0 @@
import Proxy, { ProxyOptions } from "../proxy.js";
import TcpSocket from "./multiSocket/tcpSocket.js";
import { json, raw, uint } from "compact-encoding";
import { deserializeError } from "serialize-error";
import b4a from "b4a";
import type { TcpSocketConnectOpts } from "net";
import Peer from "../peer.js";
import { roundRobinFactory, idFactory } from "../util.js";
import {
CloseSocketRequest,
ErrorSocketRequest,
PeerEntity,
SocketRequest,
WriteSocketRequest,
} from "./multiSocket/types.js";
import DummySocket from "./multiSocket/dummySocket.js";
export interface MultiSocketProxyOptions extends ProxyOptions {
socketClass?: any;
server: boolean;
allowedPorts?: number[];
}
const socketEncoding = {
preencode(state: any, m: SocketRequest) {
uint.preencode(state, m.id);
uint.preencode(state, m.remoteId);
},
encode(state: any, m: SocketRequest) {
uint.encode(state, m.id);
uint.encode(state, m.remoteId);
},
decode(state: any, m: any): SocketRequest {
return {
remoteId: uint.decode(state, m),
id: uint.decode(state, m),
};
},
};
const writeSocketEncoding = {
preencode(state: any, m: WriteSocketRequest) {
socketEncoding.preencode(state, m);
raw.preencode(state, m.data);
},
encode(state: any, m: WriteSocketRequest) {
socketEncoding.encode(state, m);
raw.encode(state, m.data);
},
decode(state: any, m: any): WriteSocketRequest {
const socket = socketEncoding.decode(state, m);
return {
...socket,
data: raw.decode(state, m),
};
},
};
const errorSocketEncoding = {
decode(state: any, m: any): ErrorSocketRequest {
const socket = socketEncoding.decode(state, m);
return {
...socket,
err: deserializeError(json.decode(state, m)),
};
},
};
const nextSocketId = idFactory(1);
export default class MultiSocketProxy extends Proxy {
private socketClass: any;
private _peers: Map<string, PeerEntity> = new Map<string, PeerEntity>();
private _nextPeer = roundRobinFactory(this._peers);
private _server = false;
private _allowedPorts = [];
constructor(options: MultiSocketProxyOptions) {
super({
createDefaultMessage: false,
...options,
});
if (options.socketClass) {
this.socketClass = options.socketClass;
} else {
if (options.server) {
this.socketClass = TcpSocket;
} else {
this.socketClass = DummySocket;
}
}
if (options.server) {
this._server = true;
}
}
private _socketMap = new Map<number, number>();
get socketMap(): Map<number, number> {
return this._socketMap;
}
private _sockets = new Map<number, typeof this.socketClass>();
get sockets(): Map<number, any> {
return this._sockets;
}
handleNewPeerChannel(peer: Peer, channel: any) {
this.update(peer.socket.remotePublicKey, { peer });
this._registerOpenSocketMessage(peer, channel);
this._registerWriteSocketMessage(peer, channel);
this._registerCloseSocketMessage(peer, channel);
this._registerTimeoutSocketMessage(peer, channel);
this._registerErrorSocketMessage(peer, channel);
}
async handleClosePeer(peer: Peer) {
for (const item of this._sockets) {
if (item[1].peer.peer === peer) {
item[1].end();
}
}
const pubkey = this._toString(peer.socket.remotePublicKey);
if (this._peers.has(pubkey)) {
this._peers.delete(pubkey);
}
}
public get(pubkey: Uint8Array): PeerEntity | undefined {
if (this._peers.has(this._toString(pubkey))) {
return this._peers.get(this._toString(pubkey)) as PeerEntity;
}
return undefined;
}
public update(pubkey: Uint8Array, data: Partial<PeerEntity>): void {
const peer = this.get(pubkey) ?? ({} as PeerEntity);
this._peers.set(this._toString(pubkey), {
...peer,
...data,
...{
messages: {
...peer?.messages,
...data?.messages,
},
},
} as PeerEntity);
}
public async createSocket(
options: TcpSocketConnectOpts
): Promise<typeof this.socketClass> {
if (!this._peers.size) {
throw new Error("no peers found");
}
const peer = this._nextPeer();
const socketId = nextSocketId();
const socket = new this.socketClass(socketId, this, peer, options);
this._sockets.set(socketId, socket);
return socket;
}
private _registerOpenSocketMessage(peer: Peer, channel: any) {
const self = this;
const message = channel.addMessage({
encoding: {
preencode: json.preencode,
encode: json.encode,
decode: this._server ? json.encode : socketEncoding.decode,
},
async onmessage(m: SocketRequest | TcpSocketConnectOpts) {
if (
self._allowedPorts.length &&
!self._allowedPorts.includes((m as TcpSocketConnectOpts).port)
) {
self.get(peer.socket.remotePublicKey).messages.errorSocket.send({
id: (m as SocketRequest).id,
err: new Error(
`port ${(m as TcpSocketConnectOpts).port} not allowed`
),
});
return;
}
m = m as SocketRequest;
if (self._server) {
new self.socketClass(
nextSocketId(),
m,
self,
self.get(peer.socket.remotePublicKey) as PeerEntity,
m
).connect();
return;
}
const socket = self._sockets.get(m.id);
if (socket) {
socket.remoteId = m.remoteId;
// @ts-ignore
socket.emit("connect");
}
},
});
this.update(peer.socket.remotePublicKey, {
messages: { openSocket: message },
});
}
private _registerWriteSocketMessage(peer: Peer, channel: any) {
const self = this;
const message = channel.addMessage({
encoding: writeSocketEncoding,
onmessage(m: WriteSocketRequest) {
self._sockets.get(m.id)?.push(m.data);
},
});
this.update(peer.socket.remotePublicKey, {
messages: { writeSocket: message },
});
}
private _registerCloseSocketMessage(peer: Peer, channel: any) {
const self = this;
const message = channel.addMessage({
encoding: socketEncoding,
onmessage(m: CloseSocketRequest) {
self._sockets.get(m.id)?.end();
},
});
this.update(peer.socket.remotePublicKey, {
messages: { closeSocket: message },
});
}
private _registerTimeoutSocketMessage(peer: Peer, channel: any) {
const self = this;
const message = channel.addMessage({
encoding: socketEncoding,
onmessage(m: SocketRequest) {
// @ts-ignore
self._sockets.get(m.id)?.emit("timeout");
},
});
this.update(peer.socket.remotePublicKey, {
messages: { timeoutSocket: message },
});
}
private _registerErrorSocketMessage(peer: Peer, channel: any) {
const self = this;
const message = channel.addMessage({
encoding: errorSocketEncoding,
onmessage(m: ErrorSocketRequest) {
// @ts-ignore
self._sockets.get(m.id)?.emit("error", m.err);
},
});
this.update(peer.socket.remotePublicKey, {
messages: { errorSocket: message },
});
}
private _toString(pubkey: Uint8Array) {
return b4a.from(pubkey).toString("hex");
}
}

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@ -1,82 +0,0 @@
import { Callback, Duplex } from "streamx";
import { TcpSocketConnectOpts } from "net";
import { clearTimeout } from "timers";
import MultiSocketProxy from "../multiSocket.js";
import { PeerEntity, SocketRequest, WriteSocketRequest } from "./types.js";
import { maybeGetAsyncProperty } from "../../util.js";
export default class DummySocket extends Duplex {
private _options: TcpSocketConnectOpts;
private _id: number;
private _proxy: MultiSocketProxy;
private _connectTimeout?: number;
constructor(
id: number,
manager: MultiSocketProxy,
peer: PeerEntity,
options: TcpSocketConnectOpts
) {
super();
this._id = id;
this._proxy = manager;
this._peer = peer;
this._options = options;
// @ts-ignore
this.on("timeout", () => {
if (this._connectTimeout) {
clearTimeout(this._connectTimeout);
}
});
}
private _remoteId = 0;
set remoteId(value: number) {
this._remoteId = value;
this._proxy.socketMap.set(this._id, value);
}
private _peer;
get peer() {
return this._peer;
}
public async _write(data: any, cb: any): Promise<void> {
(await maybeGetAsyncProperty(this._peer.messages.writeSocket))?.send({
id: this._id,
remoteId: this._remoteId,
data,
} as WriteSocketRequest);
cb();
}
public async _destroy(cb: Callback) {
(await maybeGetAsyncProperty(this._peer.messages.closeSocket))?.send({
id: this._id,
remoteId: this._remoteId,
} as SocketRequest);
this._proxy.socketMap.delete(this._id);
this._proxy.sockets.delete(this._id);
}
public async connect() {
(await maybeGetAsyncProperty(this._peer.messages.openSocket))?.send({
...this._options,
id: this._id,
});
}
public setTimeout(ms: number, cb: Function) {
if (this._connectTimeout) {
clearTimeout(this._connectTimeout);
}
this._connectTimeout = setTimeout(() => {
cb && cb();
}, ms) as any;
}
}

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@ -1,89 +0,0 @@
import { Callback, Duplex } from "streamx";
import { Socket, TcpSocketConnectOpts } from "net";
import MultiSocketProxy from "../multiSocket.js";
import { PeerEntity, SocketRequest, WriteSocketRequest } from "./types.js";
import * as net from "net";
export default class TcpSocket extends Duplex {
private _options;
private _id: number;
private _remoteId: number;
private _proxy: MultiSocketProxy;
private _socket?: Socket;
constructor(
id: number,
remoteId: number,
manager: MultiSocketProxy,
peer: PeerEntity,
options: TcpSocketConnectOpts
) {
super();
this._remoteId = remoteId;
this._proxy = manager;
this._id = id;
this._peer = peer;
this._options = options;
this._proxy.sockets.set(this._id, this);
this._proxy.socketMap.set(this._id, this._remoteId);
}
private _peer;
get peer() {
return this._peer;
}
public _write(data: any, cb: any): void {
this._peer.messages.writeSocket?.send({
...this._getSocketRequest(),
data,
} as WriteSocketRequest);
cb();
}
public _destroy(cb: Callback) {
this._proxy.sockets.delete(this._id);
this._proxy.socketMap.delete(this._id);
this._peer.messages.closeSocket?.send(this._getSocketRequest());
}
public connect() {
this.on("error", (err: Error) => {
this._peer.messages.errorSocket?.send({
...this._getSocketRequest(),
err,
});
});
// @ts-ignore
this.on("timeout", () => {
this._peer.messages.timeoutSocket?.send(this._getSocketRequest());
});
// @ts-ignore
this.on("connect", () => {
this._peer.messages.openSocket?.send(this._getSocketRequest());
});
this._socket = net.connect(this._options);
["timeout", "error", "connect", "end", "destroy", "close"].forEach(
(event) => {
this._socket?.on(event, (...args: any) =>
this.emit(event as any, ...args)
);
}
);
this._socket.pipe(this as any);
this.pipe(this._socket);
}
private _getSocketRequest(): SocketRequest {
return {
id: this._id,
remoteId: this._remoteId,
};
}
}

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@ -1,35 +0,0 @@
import { ProxyOptions } from "../../proxy.js";
import Peer from "../../peer.js";
export interface SocketRequest {
remoteId: number;
id: number;
}
export type CloseSocketRequest = SocketRequest;
export interface WriteSocketRequest extends SocketRequest {
data: Uint8Array;
}
export interface ErrorSocketRequest extends SocketRequest {
err: Error;
}
type Message = {
send: (pubkey: Uint8Array | any) => void;
};
export interface PeerEntityMessages {
keyExchange: Message;
openSocket: Message;
writeSocket: Message;
closeSocket: Message;
timeoutSocket: Message;
errorSocket: Message;
}
export interface PeerEntity {
messages: PeerEntityMessages | Partial<PeerEntityMessages>;
peer: Peer;
}

View File

@ -8,7 +8,7 @@ export interface ProxyOptions extends DataSocketOptions {
autostart?: boolean;
}
export default abstract class Proxy {
export default class Proxy {
private _listen: any;
private _socketOptions: DataSocketOptions;
private _autostart: boolean;

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@ -1,40 +0,0 @@
export function idFactory(start: number, step = 1, limit = 2 ** 32) {
let id = start;
return function nextId() {
const nextId = id;
id += step;
if (id >= limit) id = start;
return nextId;
};
}
export function roundRobinFactory<T>(list: Map<string, any>) {
let index = 0;
return (): T => {
const keys = [...list.keys()].sort();
if (index >= keys.length) {
index = 0;
}
return list.get(keys[index++]);
};
}
export async function maybeGetAsyncProperty(object: any) {
if (typeof object === "function") {
object = object();
}
if (isPromise(object)) {
object = await object;
}
return object;
}
export function isPromise(obj: Promise<any>) {
return (
!!obj &&
(typeof obj === "object" || typeof obj === "function") &&
typeof obj.then === "function"
);
}