Expose config options for cleartext stratum port

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2026-08-01 06:31:15 +03:00
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import { T } from '@start9labs/start-sdk'
import {
rpcHostId as btcRpcHostId,
rpcPort as btcRpcPort,
zmqHostId as btcZmqHostId,
zmqPortBlock as btcZmqPortBlock,
} from 'bitcoin-core-startos/startos/utils'
import { i18n } from './i18n'
import { sdk } from './sdk'
// ── Ports ────────────────────────────────────────────────────────────────────
/**
* kamado-api HTTP/WebSocket dashboard. Fixed: the OS reverse-proxies this
* interface, so the browser-facing port is never this number anyway.
*/
export const uiPort = 8080
/**
* Stratum port defaults. The live values are user config (see store.json) —
* each one sets both ckpool's/stunnel's in-container bind AND the interface's
* preferred external port, so the number the user picks is the number miners
* connect to whenever the OS can grant it.
*/
export const defaultStratumPort = 3333
export const defaultStratumTlsPort = 3334
/**
* ckpool's second, loopback-only stratum bind. stunnel forwards decrypted TLS
* traffic here. ckpool tags clients by serverurl index (server == 1 -> TLS),
* which the dashboard reads to render a lock icon next to encrypted miners —
* no source-IP heuristics needed. The bind is harmless when TLS is disabled
* (nothing connects to it). Never user-visible, so it stays fixed — but it
* does occupy a port inside the container, hence validatePorts() below.
*/
export const tlsInternalPort = 3437
/**
* Ports already taken inside the service container, mapped to what occupies
* them. A user-chosen stratum port may not collide with these.
*/
const occupiedPorts: Record<number, string> = {
[uiPort]: 'the web dashboard',
[tlsInternalPort]: "ckpool's internal TLS bind",
}
/**
* Reject stratum port choices that cannot work: the two stratum ports would
* collide with each other, or with a port already bound inside the container.
* Returns a human-readable reason, or null when the pair is usable.
*
* All of these processes share one container (and therefore one network
* namespace), so a collision is a real bind failure at startup — better to
* refuse it in the config action than to restart-loop later.
*/
export function validatePorts(opts: {
stratumPort: number
stratumTlsPort: number
tlsEnabled: boolean
}): string | null {
const { stratumPort, stratumTlsPort, tlsEnabled } = opts
const clash = occupiedPorts[stratumPort]
if (clash) return `Stratum port ${stratumPort} is already used by ${clash}.`
if (!tlsEnabled) return null
const tlsClash = occupiedPorts[stratumTlsPort]
if (tlsClash)
return `Stratum TLS port ${stratumTlsPort} is already used by ${tlsClash}.`
if (stratumPort === stratumTlsPort)
return `The stratum port and the stratum TLS port must differ (both are ${stratumPort}).`
return null
}
// ── Host ids (the `sdk.MultiHost.of` groups) ─────────────────────────────────
export const uiHostId = 'ui'
export const stratumHostId = 'stratum'
export const stratumTlsHostId = 'stratum-tls'
// ── In-container paths ───────────────────────────────────────────────────────
/** main volume mountpoint: SQLite DB (data/kamado.db) and TLS certs (tls/) */
export const kamadoRoot = '/root/.kamado'
/** ckpool volume mountpoint: ckpool's own state + daily logs (logs/) */
export const ckpoolRoot = '/root/.ckpool'
/** bitcoind's data dir (read-only dependency mount) — used for .cookie auth */
export const btcMountpoint = '/mnt/bitcoind'
export const ckpoolLogDir = `${ckpoolRoot}/logs`
export const ckpoolLogFile = `${ckpoolLogDir}/ckpool.log`
export const ckpoolSocketDir = '/run/ckpool'
export const kamadoDataDir = `${kamadoRoot}/data`
export const kamadoDbPath = `${kamadoDataDir}/kamado.db`
export const tlsDir = `${kamadoRoot}/tls`
/** Files that make up the persisted stratum TLS certificate (relative to the main volume) */
export const tlsVolumeFiles = [
'tls/stratum.crt',
'tls/stratum.key',
'tls/stratum.pem',
'tls/cert_version',
'tls/fingerprint.txt',
]
// ── Misc constants ───────────────────────────────────────────────────────────
/**
* CKPool loglevel: 6 = LOG_INFO, required for share-level logging
* (Accepted/Rejected client lines) used by the stats feature.
*/
export const ckpoolLogLevel = '6'
export const logLevels = {
debug: i18n('Debug'),
info: i18n('Info'),
warn: i18n('Warn'),
error: i18n('Error'),
}
export type LogLevel = keyof typeof logLevels
// ── Health payload served by kamado-api at /api/health ──────────────────────
export type HealthPayload = {
ok: boolean
ckpool: boolean
bitcoin: boolean
submit_gap: number
zmq_stale: boolean
last_error?: string
}
/** Minimal structural type for anything exec-able (SubContainer, temp subcontainer). */
export type Execable = {
exec(command: string[]): Promise<{
exitCode: number | null
stdout: string | Buffer
stderr: string | Buffer
}>
}
/**
* Fetch a URL from *inside* the service's network namespace by exec'ing curl
* in a subcontainer. Daemon and standalone health checks run in the host JS
* runtime, which cannot reach the container's 127.0.0.1 directly.
*/
export async function curlJson<Res>(
sub: Execable,
url: string,
opts: { method?: 'GET' | 'POST'; timeoutSeconds?: number } = {},
): Promise<Res | null> {
const args = ['curl', '-sf', '--max-time', String(opts.timeoutSeconds ?? 10)]
if (opts.method === 'POST') args.push('-X', 'POST')
args.push(url)
const res = await sub.exec(args).catch(() => null)
if (!res || res.exitCode !== 0) return null
try {
return JSON.parse(res.stdout.toString()) as Res
} catch {
return null
}
}
/**
* Bridge address (`10.0.3.1:<assigned external port>`) of a dependency's
* binding, as a minimal reactive value. Chain `.const()` in main: the mapped
* string only changes when the address itself does, so main restarts exactly
* on dependency install/uninstall/port-change and never on dependency
* updates. Chain `.once()` in an action context. Resolves null while the
* dependency is absent. Drop-in for the planned SDK
* `sdk.host.getBridgeAddress` helper.
*/
export function bridgeAddress(
effects: T.Effects,
opts: { packageId: string; hostId: string; internalPort: number },
): { const(): Promise<string | null>; once(): Promise<string | null> } {
const watchable = async () => {
const osIp = await sdk.getOsIp(effects)
return sdk.host.get(
effects,
{ packageId: opts.packageId, hostId: opts.hostId },
(host) => {
const port = host?.bindings[opts.internalPort]?.net.assignedPort
if (port == null) return null
return `${osIp}:${port}`
},
)
}
return {
const: async () => (await watchable()).const(),
once: async () => (await watchable()).once(),
}
}
/**
* bitcoind's RPC and ZMQ-block endpoints over the LXC bridge. Two reactive
* bridge-address watches — one per bitcoind host — each chained `.const()`,
* so main restarts only when an address actually changes: a bitcoind update
* is 0 restarts, bitcoind installed after Kamado is one healing restart, and
* uninstall is one restart. Each resolves null while bitcoind is absent (or,
* for ZMQ, while bitcoind has ZMQ disabled).
*/
export const bitcoindBridge = async (effects: T.Effects) => {
const rpc = await bridgeAddress(effects, {
packageId: 'bitcoind',
hostId: btcRpcHostId,
internalPort: btcRpcPort,
}).const()
const zmqBlock = await bridgeAddress(effects, {
packageId: 'bitcoind',
hostId: btcZmqHostId,
internalPort: btcZmqPortBlock,
}).const()
return { rpc, zmqBlock }
}
/**
* Parse bitcoind's RPC cookie (`__cookie__:<random>`) into credentials.
* Returns null if the cookie is absent or malformed (e.g. bitcoind has not
* started yet, so the cookie file does not exist).
*/
export function parseCookie(
cookie: string | null | undefined,
): { user: string; password: string } | null {
if (!cookie) return null
const trimmed = cookie.trim()
const i = trimmed.indexOf(':')
if (i <= 0) return null
return { user: trimmed.slice(0, i), password: trimmed.slice(i + 1) }
}