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551
thrower_daemon/node_modules/nostr-tools/lib/cjs/abstract-relay.js
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551
thrower_daemon/node_modules/nostr-tools/lib/cjs/abstract-relay.js
generated
vendored
Normal file
@@ -0,0 +1,551 @@
|
||||
"use strict";
|
||||
var __defProp = Object.defineProperty;
|
||||
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
|
||||
var __getOwnPropNames = Object.getOwnPropertyNames;
|
||||
var __hasOwnProp = Object.prototype.hasOwnProperty;
|
||||
var __export = (target, all) => {
|
||||
for (var name in all)
|
||||
__defProp(target, name, { get: all[name], enumerable: true });
|
||||
};
|
||||
var __copyProps = (to, from, except, desc) => {
|
||||
if (from && typeof from === "object" || typeof from === "function") {
|
||||
for (let key of __getOwnPropNames(from))
|
||||
if (!__hasOwnProp.call(to, key) && key !== except)
|
||||
__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
|
||||
}
|
||||
return to;
|
||||
};
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||||
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
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||||
|
||||
// abstract-relay.ts
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var abstract_relay_exports = {};
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||||
__export(abstract_relay_exports, {
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||||
AbstractRelay: () => AbstractRelay,
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SendingOnClosedConnection: () => SendingOnClosedConnection,
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Subscription: () => Subscription
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||||
});
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module.exports = __toCommonJS(abstract_relay_exports);
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||||
|
||||
// utils.ts
|
||||
var import_utils = require("@noble/hashes/utils");
|
||||
var utf8Decoder = new TextDecoder("utf-8");
|
||||
var utf8Encoder = new TextEncoder();
|
||||
function normalizeURL(url) {
|
||||
try {
|
||||
if (url.indexOf("://") === -1)
|
||||
url = "wss://" + url;
|
||||
let p = new URL(url);
|
||||
p.pathname = p.pathname.replace(/\/+/g, "/");
|
||||
if (p.pathname.endsWith("/"))
|
||||
p.pathname = p.pathname.slice(0, -1);
|
||||
if (p.port === "80" && p.protocol === "ws:" || p.port === "443" && p.protocol === "wss:")
|
||||
p.port = "";
|
||||
p.searchParams.sort();
|
||||
p.hash = "";
|
||||
return p.toString();
|
||||
} catch (e) {
|
||||
throw new Error(`Invalid URL: ${url}`);
|
||||
}
|
||||
}
|
||||
var QueueNode = class {
|
||||
value;
|
||||
next = null;
|
||||
prev = null;
|
||||
constructor(message) {
|
||||
this.value = message;
|
||||
}
|
||||
};
|
||||
var Queue = class {
|
||||
first;
|
||||
last;
|
||||
constructor() {
|
||||
this.first = null;
|
||||
this.last = null;
|
||||
}
|
||||
enqueue(value) {
|
||||
const newNode = new QueueNode(value);
|
||||
if (!this.last) {
|
||||
this.first = newNode;
|
||||
this.last = newNode;
|
||||
} else if (this.last === this.first) {
|
||||
this.last = newNode;
|
||||
this.last.prev = this.first;
|
||||
this.first.next = newNode;
|
||||
} else {
|
||||
newNode.prev = this.last;
|
||||
this.last.next = newNode;
|
||||
this.last = newNode;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
dequeue() {
|
||||
if (!this.first)
|
||||
return null;
|
||||
if (this.first === this.last) {
|
||||
const target2 = this.first;
|
||||
this.first = null;
|
||||
this.last = null;
|
||||
return target2.value;
|
||||
}
|
||||
const target = this.first;
|
||||
this.first = target.next;
|
||||
if (this.first) {
|
||||
this.first.prev = null;
|
||||
}
|
||||
return target.value;
|
||||
}
|
||||
};
|
||||
|
||||
// kinds.ts
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var ClientAuth = 22242;
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||||
|
||||
// filter.ts
|
||||
function matchFilter(filter, event) {
|
||||
if (filter.ids && filter.ids.indexOf(event.id) === -1) {
|
||||
return false;
|
||||
}
|
||||
if (filter.kinds && filter.kinds.indexOf(event.kind) === -1) {
|
||||
return false;
|
||||
}
|
||||
if (filter.authors && filter.authors.indexOf(event.pubkey) === -1) {
|
||||
return false;
|
||||
}
|
||||
for (let f in filter) {
|
||||
if (f[0] === "#") {
|
||||
let tagName = f.slice(1);
|
||||
let values = filter[`#${tagName}`];
|
||||
if (values && !event.tags.find(([t, v]) => t === f.slice(1) && values.indexOf(v) !== -1))
|
||||
return false;
|
||||
}
|
||||
}
|
||||
if (filter.since && event.created_at < filter.since)
|
||||
return false;
|
||||
if (filter.until && event.created_at > filter.until)
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
function matchFilters(filters, event) {
|
||||
for (let i = 0; i < filters.length; i++) {
|
||||
if (matchFilter(filters[i], event)) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
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||||
|
||||
// fakejson.ts
|
||||
function getHex64(json, field) {
|
||||
let len = field.length + 3;
|
||||
let idx = json.indexOf(`"${field}":`) + len;
|
||||
let s = json.slice(idx).indexOf(`"`) + idx + 1;
|
||||
return json.slice(s, s + 64);
|
||||
}
|
||||
function getSubscriptionId(json) {
|
||||
let idx = json.slice(0, 22).indexOf(`"EVENT"`);
|
||||
if (idx === -1)
|
||||
return null;
|
||||
let pstart = json.slice(idx + 7 + 1).indexOf(`"`);
|
||||
if (pstart === -1)
|
||||
return null;
|
||||
let start = idx + 7 + 1 + pstart;
|
||||
let pend = json.slice(start + 1, 80).indexOf(`"`);
|
||||
if (pend === -1)
|
||||
return null;
|
||||
let end = start + 1 + pend;
|
||||
return json.slice(start + 1, end);
|
||||
}
|
||||
|
||||
// nip42.ts
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||||
function makeAuthEvent(relayURL, challenge) {
|
||||
return {
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||||
kind: ClientAuth,
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||||
created_at: Math.floor(Date.now() / 1e3),
|
||||
tags: [
|
||||
["relay", relayURL],
|
||||
["challenge", challenge]
|
||||
],
|
||||
content: ""
|
||||
};
|
||||
}
|
||||
|
||||
// helpers.ts
|
||||
async function yieldThread() {
|
||||
return new Promise((resolve) => {
|
||||
const ch = new MessageChannel();
|
||||
const handler = () => {
|
||||
ch.port1.removeEventListener("message", handler);
|
||||
resolve();
|
||||
};
|
||||
ch.port1.addEventListener("message", handler);
|
||||
ch.port2.postMessage(0);
|
||||
ch.port1.start();
|
||||
});
|
||||
}
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||||
|
||||
// abstract-relay.ts
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||||
var SendingOnClosedConnection = class extends Error {
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||||
constructor(message, relay) {
|
||||
super(`Tried to send message '${message} on a closed connection to ${relay}.`);
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||||
this.name = "SendingOnClosedConnection";
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||||
}
|
||||
};
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||||
var AbstractRelay = class {
|
||||
url;
|
||||
_connected = false;
|
||||
onclose = null;
|
||||
onnotice = (msg) => console.debug(`NOTICE from ${this.url}: ${msg}`);
|
||||
baseEoseTimeout = 4400;
|
||||
connectionTimeout = 4400;
|
||||
publishTimeout = 4400;
|
||||
pingFrequency = 2e4;
|
||||
pingTimeout = 2e4;
|
||||
openSubs = /* @__PURE__ */ new Map();
|
||||
enablePing;
|
||||
connectionTimeoutHandle;
|
||||
connectionPromise;
|
||||
openCountRequests = /* @__PURE__ */ new Map();
|
||||
openEventPublishes = /* @__PURE__ */ new Map();
|
||||
ws;
|
||||
incomingMessageQueue = new Queue();
|
||||
queueRunning = false;
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||||
challenge;
|
||||
authPromise;
|
||||
serial = 0;
|
||||
verifyEvent;
|
||||
_WebSocket;
|
||||
constructor(url, opts) {
|
||||
this.url = normalizeURL(url);
|
||||
this.verifyEvent = opts.verifyEvent;
|
||||
this._WebSocket = opts.websocketImplementation || WebSocket;
|
||||
this.enablePing = opts.enablePing;
|
||||
}
|
||||
static async connect(url, opts) {
|
||||
const relay = new AbstractRelay(url, opts);
|
||||
await relay.connect();
|
||||
return relay;
|
||||
}
|
||||
closeAllSubscriptions(reason) {
|
||||
for (let [_, sub] of this.openSubs) {
|
||||
sub.close(reason);
|
||||
}
|
||||
this.openSubs.clear();
|
||||
for (let [_, ep] of this.openEventPublishes) {
|
||||
ep.reject(new Error(reason));
|
||||
}
|
||||
this.openEventPublishes.clear();
|
||||
for (let [_, cr] of this.openCountRequests) {
|
||||
cr.reject(new Error(reason));
|
||||
}
|
||||
this.openCountRequests.clear();
|
||||
}
|
||||
get connected() {
|
||||
return this._connected;
|
||||
}
|
||||
async connect() {
|
||||
if (this.connectionPromise)
|
||||
return this.connectionPromise;
|
||||
this.challenge = void 0;
|
||||
this.authPromise = void 0;
|
||||
this.connectionPromise = new Promise((resolve, reject) => {
|
||||
this.connectionTimeoutHandle = setTimeout(() => {
|
||||
reject("connection timed out");
|
||||
this.connectionPromise = void 0;
|
||||
this.onclose?.();
|
||||
this.closeAllSubscriptions("relay connection timed out");
|
||||
}, this.connectionTimeout);
|
||||
try {
|
||||
this.ws = new this._WebSocket(this.url);
|
||||
} catch (err) {
|
||||
clearTimeout(this.connectionTimeoutHandle);
|
||||
reject(err);
|
||||
return;
|
||||
}
|
||||
this.ws.onopen = () => {
|
||||
clearTimeout(this.connectionTimeoutHandle);
|
||||
this._connected = true;
|
||||
if (this.enablePing) {
|
||||
this.pingpong();
|
||||
}
|
||||
resolve();
|
||||
};
|
||||
this.ws.onerror = (ev) => {
|
||||
clearTimeout(this.connectionTimeoutHandle);
|
||||
reject(ev.message || "websocket error");
|
||||
this._connected = false;
|
||||
this.connectionPromise = void 0;
|
||||
this.onclose?.();
|
||||
this.closeAllSubscriptions("relay connection errored");
|
||||
};
|
||||
this.ws.onclose = (ev) => {
|
||||
clearTimeout(this.connectionTimeoutHandle);
|
||||
reject(ev.message || "websocket closed");
|
||||
this._connected = false;
|
||||
this.connectionPromise = void 0;
|
||||
this.onclose?.();
|
||||
this.closeAllSubscriptions("relay connection closed");
|
||||
};
|
||||
this.ws.onmessage = this._onmessage.bind(this);
|
||||
});
|
||||
return this.connectionPromise;
|
||||
}
|
||||
async waitForPingPong() {
|
||||
return new Promise((res, err) => {
|
||||
;
|
||||
this.ws && this.ws.on && this.ws.on("pong", () => res(true)) || err("ws can't listen for pong");
|
||||
this.ws && this.ws.ping && this.ws.ping();
|
||||
});
|
||||
}
|
||||
async waitForDummyReq() {
|
||||
return new Promise((resolve, _) => {
|
||||
const sub = this.subscribe([{ ids: ["a".repeat(64)] }], {
|
||||
oneose: () => {
|
||||
sub.close();
|
||||
resolve(true);
|
||||
},
|
||||
eoseTimeout: this.pingTimeout + 1e3
|
||||
});
|
||||
});
|
||||
}
|
||||
async pingpong() {
|
||||
if (this.ws?.readyState === 1) {
|
||||
const result = await Promise.any([
|
||||
this.ws && this.ws.ping && this.ws.on ? this.waitForPingPong() : this.waitForDummyReq(),
|
||||
new Promise((res) => setTimeout(() => res(false), this.pingTimeout))
|
||||
]);
|
||||
if (result) {
|
||||
setTimeout(() => this.pingpong(), this.pingFrequency);
|
||||
} else {
|
||||
this.closeAllSubscriptions("pingpong timed out");
|
||||
this._connected = false;
|
||||
this.onclose?.();
|
||||
this.ws?.close();
|
||||
}
|
||||
}
|
||||
}
|
||||
async runQueue() {
|
||||
this.queueRunning = true;
|
||||
while (true) {
|
||||
if (false === this.handleNext()) {
|
||||
break;
|
||||
}
|
||||
await yieldThread();
|
||||
}
|
||||
this.queueRunning = false;
|
||||
}
|
||||
handleNext() {
|
||||
const json = this.incomingMessageQueue.dequeue();
|
||||
if (!json) {
|
||||
return false;
|
||||
}
|
||||
const subid = getSubscriptionId(json);
|
||||
if (subid) {
|
||||
const so = this.openSubs.get(subid);
|
||||
if (!so) {
|
||||
return;
|
||||
}
|
||||
const id = getHex64(json, "id");
|
||||
const alreadyHave = so.alreadyHaveEvent?.(id);
|
||||
so.receivedEvent?.(this, id);
|
||||
if (alreadyHave) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
try {
|
||||
let data = JSON.parse(json);
|
||||
switch (data[0]) {
|
||||
case "EVENT": {
|
||||
const so = this.openSubs.get(data[1]);
|
||||
const event = data[2];
|
||||
if (this.verifyEvent(event) && matchFilters(so.filters, event)) {
|
||||
so.onevent(event);
|
||||
}
|
||||
return;
|
||||
}
|
||||
case "COUNT": {
|
||||
const id = data[1];
|
||||
const payload = data[2];
|
||||
const cr = this.openCountRequests.get(id);
|
||||
if (cr) {
|
||||
cr.resolve(payload.count);
|
||||
this.openCountRequests.delete(id);
|
||||
}
|
||||
return;
|
||||
}
|
||||
case "EOSE": {
|
||||
const so = this.openSubs.get(data[1]);
|
||||
if (!so)
|
||||
return;
|
||||
so.receivedEose();
|
||||
return;
|
||||
}
|
||||
case "OK": {
|
||||
const id = data[1];
|
||||
const ok = data[2];
|
||||
const reason = data[3];
|
||||
const ep = this.openEventPublishes.get(id);
|
||||
if (ep) {
|
||||
clearTimeout(ep.timeout);
|
||||
if (ok)
|
||||
ep.resolve(reason);
|
||||
else
|
||||
ep.reject(new Error(reason));
|
||||
this.openEventPublishes.delete(id);
|
||||
}
|
||||
return;
|
||||
}
|
||||
case "CLOSED": {
|
||||
const id = data[1];
|
||||
const so = this.openSubs.get(id);
|
||||
if (!so)
|
||||
return;
|
||||
so.closed = true;
|
||||
so.close(data[2]);
|
||||
return;
|
||||
}
|
||||
case "NOTICE":
|
||||
this.onnotice(data[1]);
|
||||
return;
|
||||
case "AUTH": {
|
||||
this.challenge = data[1];
|
||||
return;
|
||||
}
|
||||
}
|
||||
} catch (err) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
async send(message) {
|
||||
if (!this.connectionPromise)
|
||||
throw new SendingOnClosedConnection(message, this.url);
|
||||
this.connectionPromise.then(() => {
|
||||
this.ws?.send(message);
|
||||
});
|
||||
}
|
||||
async auth(signAuthEvent) {
|
||||
const challenge = this.challenge;
|
||||
if (!challenge)
|
||||
throw new Error("can't perform auth, no challenge was received");
|
||||
if (this.authPromise)
|
||||
return this.authPromise;
|
||||
this.authPromise = new Promise(async (resolve, reject) => {
|
||||
try {
|
||||
let evt = await signAuthEvent(makeAuthEvent(this.url, challenge));
|
||||
let timeout = setTimeout(() => {
|
||||
let ep = this.openEventPublishes.get(evt.id);
|
||||
if (ep) {
|
||||
ep.reject(new Error("auth timed out"));
|
||||
this.openEventPublishes.delete(evt.id);
|
||||
}
|
||||
}, this.publishTimeout);
|
||||
this.openEventPublishes.set(evt.id, { resolve, reject, timeout });
|
||||
this.send('["AUTH",' + JSON.stringify(evt) + "]");
|
||||
} catch (err) {
|
||||
console.warn("subscribe auth function failed:", err);
|
||||
}
|
||||
});
|
||||
return this.authPromise;
|
||||
}
|
||||
async publish(event) {
|
||||
const ret = new Promise((resolve, reject) => {
|
||||
const timeout = setTimeout(() => {
|
||||
const ep = this.openEventPublishes.get(event.id);
|
||||
if (ep) {
|
||||
ep.reject(new Error("publish timed out"));
|
||||
this.openEventPublishes.delete(event.id);
|
||||
}
|
||||
}, this.publishTimeout);
|
||||
this.openEventPublishes.set(event.id, { resolve, reject, timeout });
|
||||
});
|
||||
this.send('["EVENT",' + JSON.stringify(event) + "]");
|
||||
return ret;
|
||||
}
|
||||
async count(filters, params) {
|
||||
this.serial++;
|
||||
const id = params?.id || "count:" + this.serial;
|
||||
const ret = new Promise((resolve, reject) => {
|
||||
this.openCountRequests.set(id, { resolve, reject });
|
||||
});
|
||||
this.send('["COUNT","' + id + '",' + JSON.stringify(filters).substring(1));
|
||||
return ret;
|
||||
}
|
||||
subscribe(filters, params) {
|
||||
const subscription = this.prepareSubscription(filters, params);
|
||||
subscription.fire();
|
||||
return subscription;
|
||||
}
|
||||
prepareSubscription(filters, params) {
|
||||
this.serial++;
|
||||
const id = params.id || (params.label ? params.label + ":" : "sub:") + this.serial;
|
||||
const subscription = new Subscription(this, id, filters, params);
|
||||
this.openSubs.set(id, subscription);
|
||||
return subscription;
|
||||
}
|
||||
close() {
|
||||
this.closeAllSubscriptions("relay connection closed by us");
|
||||
this._connected = false;
|
||||
this.onclose?.();
|
||||
this.ws?.close();
|
||||
}
|
||||
_onmessage(ev) {
|
||||
this.incomingMessageQueue.enqueue(ev.data);
|
||||
if (!this.queueRunning) {
|
||||
this.runQueue();
|
||||
}
|
||||
}
|
||||
};
|
||||
var Subscription = class {
|
||||
relay;
|
||||
id;
|
||||
closed = false;
|
||||
eosed = false;
|
||||
filters;
|
||||
alreadyHaveEvent;
|
||||
receivedEvent;
|
||||
onevent;
|
||||
oneose;
|
||||
onclose;
|
||||
eoseTimeout;
|
||||
eoseTimeoutHandle;
|
||||
constructor(relay, id, filters, params) {
|
||||
this.relay = relay;
|
||||
this.filters = filters;
|
||||
this.id = id;
|
||||
this.alreadyHaveEvent = params.alreadyHaveEvent;
|
||||
this.receivedEvent = params.receivedEvent;
|
||||
this.eoseTimeout = params.eoseTimeout || relay.baseEoseTimeout;
|
||||
this.oneose = params.oneose;
|
||||
this.onclose = params.onclose;
|
||||
this.onevent = params.onevent || ((event) => {
|
||||
console.warn(
|
||||
`onevent() callback not defined for subscription '${this.id}' in relay ${this.relay.url}. event received:`,
|
||||
event
|
||||
);
|
||||
});
|
||||
}
|
||||
fire() {
|
||||
this.relay.send('["REQ","' + this.id + '",' + JSON.stringify(this.filters).substring(1));
|
||||
this.eoseTimeoutHandle = setTimeout(this.receivedEose.bind(this), this.eoseTimeout);
|
||||
}
|
||||
receivedEose() {
|
||||
if (this.eosed)
|
||||
return;
|
||||
clearTimeout(this.eoseTimeoutHandle);
|
||||
this.eosed = true;
|
||||
this.oneose?.();
|
||||
}
|
||||
close(reason = "closed by caller") {
|
||||
if (!this.closed && this.relay.connected) {
|
||||
try {
|
||||
this.relay.send('["CLOSE",' + JSON.stringify(this.id) + "]");
|
||||
} catch (err) {
|
||||
if (err instanceof SendingOnClosedConnection) {
|
||||
} else {
|
||||
throw err;
|
||||
}
|
||||
}
|
||||
this.closed = true;
|
||||
}
|
||||
this.relay.openSubs.delete(this.id);
|
||||
this.onclose?.(reason);
|
||||
}
|
||||
};
|
||||
Reference in New Issue
Block a user