Usage: deno run -A sing-box-sub.ts --address <address> --secret $(uuidgen) out </etc/sing-box/config.json

sing-box-sub.ts

import { readAllSync } from "jsr:@std/[email protected]";
import { ensureDirSync } from "jsr:@std/[email protected]";
import { join } from "jsr:@std/[email protected]";
import { v5 } from "jsr:@std/[email protected]";
import { parseArgs } from "jsr:@std/[email protected]";

// https://sing-box.sagernet.org/manual/proxy-protocol/shadowsocks/#server-example
interface SingBoxConfig {
  inbounds: SingBoxInbound[];
}

interface SingBoxInbound {
  type: "shadowsocks";
  listen_port: number;
  method: string;
  password: string;
  users: { name: string; password: string }[];
}

// https://github.com/Shadowsocks-NET/OpenOnlineConfig/blob/master/docs/0001-open-online-config-v1.md#3-api-specification
interface OOC1Config {
  username: string;
  protocols: string[];
  shadowsocks: OOC1ShadowsocksServer[];
}

// https://github.com/Shadowsocks-NET/OpenOnlineConfig/blob/master/docs/0002-open-online-config-v1-shadowsocks.md#2-api-specification
interface OOC1ShadowsocksServer {
  id: string;
  name: string;
  address: string;
  port: number;
  method: string;
  password: string;
}

interface OOC1APIToken {
  version: number;
  baseUrl: string;
  secret: string;
  userId: string;
}

const args: {
  address: string;
  secret: string;
  _: [string];
} = parseArgs(Deno.args, {
  alias: {
    a: "address",
    s: "secret",
  },
});

const config: SingBoxConfig = JSON.parse(
  new TextDecoder().decode(readAllSync(Deno.stdin)),
);

const users = new Map<string, OOC1ShadowsocksServer[]>();

for (const inbound of config.inbounds) {
  if (inbound.type !== "shadowsocks") {
    continue;
  }

  for (const user of inbound.users) {
    const password = [inbound.password, user.password].join(":");
    users.set(user.name, [
      ...(users.get(user.name) || []),
      {
        id: await v5.generate(args.secret, new TextEncoder().encode(password)),
        name: `[${args.address}] ${inbound.type}`,
        address: args.address,
        port: inbound.listen_port,
        method: inbound.method,
        password,
      },
    ]);
  }
}

const out = args._[0];
const dir = join(out, args.secret, "ooc", "v1");
ensureDirSync(dir);

for (const [name, servers] of users) {
  const id = await v5.generate(args.secret, new TextEncoder().encode(name));
  Deno.writeTextFileSync(
    join(dir, id),
    JSON.stringify({
      username: name,
      protocols: ["shadowsocks"],
      shadowsocks: servers,
    } as OOC1Config),
  );

  // https://github.com/Shadowsocks-NET/OpenOnlineConfig/blob/master/docs/0001-open-online-config-v1.md#22-delivery
  console.log(name, JSON.stringify({
    version: 1,
    baseUrl: `https://${args.address}`,
    secret: args.secret,
    userId: id,
  } as OOC1APIToken));
}