142 lines
4.3 KiB
JavaScript
142 lines
4.3 KiB
JavaScript
import { Client, factory } from "@lumeweb/libkernel-universal";
|
|
import { hexToBuf } from "@siaweb/libweb";
|
|
import backoff from "backoff";
|
|
export class SwarmClient extends Client {
|
|
useDefaultSwarm;
|
|
id = 0;
|
|
_autoReconnect;
|
|
_connectBackoff;
|
|
_ready;
|
|
constructor(useDefaultDht = true, autoReconnect = false) {
|
|
super();
|
|
this.useDefaultSwarm = useDefaultDht;
|
|
this._autoReconnect = autoReconnect;
|
|
this._connectBackoff = backoff.fibonacci();
|
|
this._connectBackoff.on("ready", () => {
|
|
this.start();
|
|
});
|
|
}
|
|
get swarm() {
|
|
return this.useDefaultSwarm ? undefined : this.id;
|
|
}
|
|
async connect(pubkey) {
|
|
if (typeof pubkey === "string") {
|
|
const buf = hexToBuf(pubkey);
|
|
pubkey = this.handleErrorOrReturn(buf);
|
|
}
|
|
const resp = this.callModuleReturn("connect", {
|
|
pubkey,
|
|
swarm: this.swarm,
|
|
});
|
|
return createSocket(resp.id);
|
|
}
|
|
async init() {
|
|
return await this.callModuleReturn("init", { swarm: this.swarm });
|
|
}
|
|
async ready() {
|
|
if (this._ready) {
|
|
return this._ready;
|
|
}
|
|
this.connectModule("listenConnections", { swarm: this.swarm }, async (socketId) => {
|
|
this.emit("connection", await createSocket(socketId));
|
|
});
|
|
this._ready = this.callModuleReturn("ready", { swarm: this.swarm });
|
|
await this._ready;
|
|
this._ready = undefined;
|
|
this._connectBackoff.reset();
|
|
}
|
|
async start() {
|
|
const backoff = () => setImmediate(() => this._connectBackoff.backoff());
|
|
try {
|
|
await this.init();
|
|
}
|
|
catch (e) {
|
|
this.logErr(e);
|
|
backoff();
|
|
return;
|
|
}
|
|
await this.ready();
|
|
}
|
|
async addRelay(pubkey) {
|
|
return this.callModuleReturn("addRelay", { pubkey, swarm: this.swarm });
|
|
}
|
|
async removeRelay(pubkey) {
|
|
return this.callModuleReturn("removeRelay", { pubkey, swarm: this.swarm });
|
|
}
|
|
async clearRelays() {
|
|
return this.callModuleReturn("clearRelays", { swarm: this.swarm });
|
|
}
|
|
async getRelays() {
|
|
return this.callModuleReturn("getRelays", { swarm: this.swarm });
|
|
}
|
|
async join(topic) {
|
|
this.callModule("join", { id: this.id, topic });
|
|
}
|
|
}
|
|
export class Socket extends Client {
|
|
id;
|
|
eventUpdates = {};
|
|
constructor(id) {
|
|
super();
|
|
this.id = id;
|
|
}
|
|
_remotePublicKey;
|
|
get remotePublicKey() {
|
|
return this._remotePublicKey;
|
|
}
|
|
_rawStream;
|
|
get rawStream() {
|
|
return this._rawStream;
|
|
}
|
|
async setup() {
|
|
let info = await this.callModuleReturn("socketGetInfo", { id: this.id });
|
|
this._remotePublicKey = info.remotePublicKey;
|
|
this._rawStream = info.rawStream;
|
|
}
|
|
on(event, fn, context) {
|
|
const [update, promise] = this.connectModule("socketListenEvent", { id: this.id, event: event }, (data) => {
|
|
this.emit(event, data);
|
|
});
|
|
this.trackEvent(event, update);
|
|
promise.then(() => {
|
|
this.off(event, fn);
|
|
});
|
|
return super.on(event, fn, context);
|
|
}
|
|
off(event, fn, context, once) {
|
|
const updates = [...this.eventUpdates[event]];
|
|
this.eventUpdates[event] = [];
|
|
for (const func of updates) {
|
|
func();
|
|
}
|
|
return super.off(event, fn, context, once);
|
|
}
|
|
write(message) {
|
|
this.callModule("socketWrite", { id: this.id, message });
|
|
}
|
|
end() {
|
|
this.callModule("socketExists", { id: this.id }).then(([exists]) => {
|
|
if (exists) {
|
|
this.callModule("socketClose", { id: this.id });
|
|
}
|
|
});
|
|
}
|
|
ensureEvent(event) {
|
|
if (!(event in this.eventUpdates)) {
|
|
this.eventUpdates[event] = [];
|
|
}
|
|
}
|
|
trackEvent(event, update) {
|
|
this.ensureEvent(event);
|
|
this.eventUpdates[event].push(update);
|
|
}
|
|
}
|
|
const MODULE = "_A7ClA0mSa1-Pg5c4V3C0H_fnhAFjgccITYT83Euc7t_9A";
|
|
export const createClient = factory(SwarmClient, MODULE);
|
|
const socketFactory = factory(Socket, MODULE);
|
|
const createSocket = async (...args) => {
|
|
const socket = socketFactory(...args);
|
|
await socket.setup();
|
|
return socket;
|
|
};
|