*Initial version

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) <year> <copyright holders>
+Copyright (c) 2023 Hammer Technologies LLC
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

package.json

@@ -0,0 +1,20 @@
+{
+    "name": "@lumeweb/peer-discovery-irc",
+    "version": "0.1.0",
+    "main": "dist/index.js",
+    "type": "module",
+    "devDependencies": {
+        "@types/b4a": "^1.6.0",
+        "@types/node": "^18.11.17",
+        "prettier": "^2.8.3",
+        "typescript": "^4.9.4"
+    },
+    "dependencies": {
+        "@ctrl/irc": "^2.1.0",
+        "@lumeweb/peer-discovery": "git+https://git.lumeweb.com/LumeWeb/peer-discovery.git",
+        "@noble/ed25519": "^1.7.1",
+        "@noble/hashes": "^1.1.5",
+        "b4a": "^1.6.1",
+        "json-stringify-deterministic": "^1.0.8"
+    }
+}

pnpm-lock.yaml

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+lockfileVersion: 5.4
+
+specifiers:
+  '@ctrl/irc': ^2.1.0
+  '@lumeweb/peer-discovery': git+https://git.lumeweb.com/LumeWeb/peer-discovery.git
+  '@noble/ed25519': ^1.7.1
+  '@noble/hashes': ^1.1.5
+  '@types/b4a': ^1.6.0
+  '@types/node': ^18.11.17
+  b4a: ^1.6.1
+  json-stringify-deterministic: ^1.0.8
+  prettier: ^2.8.3
+  typescript: ^4.9.4
+
+dependencies:
+  '@ctrl/irc': 2.1.0
+  '@lumeweb/peer-discovery': git.lumeweb.com/LumeWeb/peer-discovery/abdb430c273301f7652feb8f9026c89a78f58d7a
+  '@noble/ed25519': 1.7.1
+  '@noble/hashes': 1.1.5
+  b4a: 1.6.1
+  json-stringify-deterministic: 1.0.8
+
+devDependencies:
+  '@types/b4a': 1.6.0
+  '@types/node': 18.11.18
+  prettier: 2.8.3
+  typescript: 4.9.4
+
+packages:
+
+  /@ctrl/irc/2.1.0:
+    resolution: {integrity: sha512-cVCXsKZVZ0seciCdTmwF9PUt+t/QCjJl6HYUPhkMrOTh6voQ9lqipUxF0/fLksBl2hrRiITgBXvTjpNYLdkbJQ==}
+    engines: {node: '>=14.16'}
+    dependencies:
+      chardet: 1.5.1
+      debug: 4.3.4
+      iconv-lite: 0.6.3
+      lodash.defaultsdeep: 4.6.1
+      tiny-typed-emitter: 2.1.0
+    transitivePeerDependencies:
+      - supports-color
+    dev: false
+
+  /@noble/ed25519/1.7.1:
+    resolution: {integrity: sha512-Rk4SkJFaXZiznFyC/t77Q0NKS4FL7TLJJsVG2V2oiEq3kJVeTdxysEe/yRWSpnWMe808XRDJ+VFh5pt/FN5plw==}
+    dev: false
+
+  /@noble/hashes/1.1.5:
+    resolution: {integrity: sha512-LTMZiiLc+V4v1Yi16TD6aX2gmtKszNye0pQgbaLqkvhIqP7nVsSaJsWloGQjJfJ8offaoP5GtX3yY5swbcJxxQ==}
+    dev: false
+
+  /@types/b4a/1.6.0:
+    resolution: {integrity: sha512-rYU2r5nSUPyKyufWijxgTjsFp2kLCwydj2TmKU4StJeGPHS/Fs5KHgP89DNF0jddyeAbN5mdjNDqIrjIHca60g==}
+    dependencies:
+      '@types/node': 18.11.18
+    dev: true
+
+  /@types/node/18.11.18:
+    resolution: {integrity: sha512-DHQpWGjyQKSHj3ebjFI/wRKcqQcdR+MoFBygntYOZytCqNfkd2ZC4ARDJ2DQqhjH5p85Nnd3jhUJIXrszFX/JA==}
+    dev: true
+
+  /b4a/1.6.1:
+    resolution: {integrity: sha512-AsKjNhz72yxteo/0EtQEiwkMUgk/tGmycXlbG4g3Ard2/ULtNLUykGOkeK0egmN27h0xMAhb76jYccW+XTBExA==}
+    dev: false
+
+  /chardet/1.5.1:
+    resolution: {integrity: sha512-0XMOtA52igKDOIfvJZJ6v0+J9yMF3IuYyEa5oFUxBXA01G6mwCNKpul3bgbFf7lmZuqwN/oyg/zQ1cGS7NyJkQ==}
+    dev: false
+
+  /debug/4.3.4:
+    resolution: {integrity: sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==}
+    engines: {node: '>=6.0'}
+    peerDependencies:
+      supports-color: '*'
+    peerDependenciesMeta:
+      supports-color:
+        optional: true
+    dependencies:
+      ms: 2.1.2
+    dev: false
+
+  /iconv-lite/0.6.3:
+    resolution: {integrity: sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==}
+    engines: {node: '>=0.10.0'}
+    dependencies:
+      safer-buffer: 2.1.2
+    dev: false
+
+  /json-stringify-deterministic/1.0.8:
+    resolution: {integrity: sha512-rkJID3qeigo3VCrEcxX1333fTBBxW89YrdYcZexMnL/WdB8u0zctyG63e/DpahRJyrWCDhh7IQhiR7u2XEDQ4Q==}
+    engines: {node: '>= 4'}
+    dev: false
+
+  /lodash.defaultsdeep/4.6.1:
+    resolution: {integrity: sha512-3j8wdDzYuWO3lM3Reg03MuQR957t287Rpcxp1njpEa8oDrikb+FwGdW3n+FELh/A6qib6yPit0j/pv9G/yeAqA==}
+    dev: false
+
+  /ms/2.1.2:
+    resolution: {integrity: sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==}
+    dev: false
+
+  /prettier/2.8.3:
+    resolution: {integrity: sha512-tJ/oJ4amDihPoufT5sM0Z1SKEuKay8LfVAMlbbhnnkvt6BUserZylqo2PN+p9KeljLr0OHa2rXHU1T8reeoTrw==}
+    engines: {node: '>=10.13.0'}
+    hasBin: true
+    dev: true
+
+  /safer-buffer/2.1.2:
+    resolution: {integrity: sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==}
+    dev: false
+
+  /tiny-typed-emitter/2.1.0:
+    resolution: {integrity: sha512-qVtvMxeXbVej0cQWKqVSSAHmKZEHAvxdF8HEUBFWts8h+xEo5m/lEiPakuyZ3BnCBjOD8i24kzNOiOLLgsSxhA==}
+    dev: false
+
+  /typescript/4.9.4:
+    resolution: {integrity: sha512-Uz+dTXYzxXXbsFpM86Wh3dKCxrQqUcVMxwU54orwlJjOpO3ao8L7j5lH+dWfTwgCwIuM9GQ2kvVotzYJMXTBZg==}
+    engines: {node: '>=4.2.0'}
+    hasBin: true
+    dev: true
+
+  git.lumeweb.com/LumeWeb/peer-discovery/abdb430c273301f7652feb8f9026c89a78f58d7a:
+    resolution: {commit: abdb430c273301f7652feb8f9026c89a78f58d7a, repo: https://git.lumeweb.com/LumeWeb/peer-discovery.git, type: git}
+    name: '@lumeweb/peer-discovery'
+    version: 0.1.0
+    dependencies:
+      b4a: 1.6.1
+    dev: false

src/index.ts

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+import type { Peer } from "@lumeweb/peer-discovery";
+import { IrcClient } from "@ctrl/irc";
+import jsonStringify from "json-stringify-deterministic";
+import b4a from "b4a";
+import * as ed from "@noble/ed25519";
+import { ripemd160 } from "@noble/hashes/ripemd160";
+import { sha256 } from "@noble/hashes/sha256";
+import { bytesToHex } from "@noble/hashes/utils";
+
+const hash160 = (data: Uint8Array) => ripemd160(sha256(data));
+
+interface SignedPeerResponse extends Peer {
+  timestamp: number;
+  signature?: string;
+}
+
+export default async (
+  pubkey: Buffer,
+  options = {}
+): Promise<boolean | Peer> => {
+  let ircPubKey = await ed.getPublicKey(ed.utils.randomPrivateKey());
+
+  let client = new IrcClient(
+    undefined,
+    bytesToHex(hash160(ircPubKey)).substring(0, 15),
+    {
+      host: "irc.liberta.casa",
+      port: 6697,
+      secure: true,
+      channels: ["#lumeweb"],
+    }
+  );
+
+  client.connect();
+
+  await new Promise((resolve) => {
+    client.once("join", resolve);
+  });
+
+  client.say("#lumeweb", b4a.toBuffer(pubkey).toString("hex"));
+
+  return new Promise<Peer>((resolve, reject) => {
+    client.on("pm", async (from: string, text: string) => {
+      let json: SignedPeerResponse;
+      try {
+        json = JSON.parse(text);
+      } catch {
+        return;
+      }
+
+      const verifyData = {
+        host: json.host,
+        port: json.port,
+        timestamp: json.timestamp,
+      };
+
+      const verifyPayload = jsonStringify(verifyData);
+      if (
+        !(await ed.verify(
+          b4a.from(json.signature, "hex"),
+          b4a.from(verifyPayload),
+          pubkey
+        ))
+      ) {
+        return;
+      }
+
+      client.end();
+      resolve({ host: json.host, port: json.port });
+    });
+  });
+};

tsconfig.json

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+{
+    "compilerOptions": {
+        "module": "esnext",
+        "target": "esnext",
+        "sourceMap": true,
+        "esModuleInterop": true,
+        "outDir": "dist",
+        "declaration": true,
+        "moduleResolution": "nodenext"
+    },
+    "include": ["src"],
+    "exclude": [
+        "node_modules"
+    ]
+}