oclaw/uds-auth/lib/utils/atomic-write.js
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fix(uds-auth): emergency login workspaces, Desktop key prompts, persistent sessions
Emergency (fallback / sealed-box) admins lost the workspace sidebar and saw
"sign-in failed / add API key" on DSH Desktop because the remote.mux opens
anonymously at boot and every early call was rejected terminally.

- gateway: anonymous workspace/follow reaches dsh-acl's empty baseline;
  anonymous streams are parked until the carrier aborts instead of failing;
  anonymous workspace/initializeDefault answers "nothing created"
- request-auth: a dead UDS_SESSION cookie no longer shadows a valid WS ticket
  or bridge (sync + async variants used by all callers)
- dsh-acl: /api/* waits (bounded 15s) for the gateway ACL during Host startup
  instead of 403, so the Desktop welcome read no longer fails
- desktop-bootstrap: key/account projection is best-effort per reference
- client: emit connection/reset after login so boot-time caches (settings
  describe mirror -> Settings > Models) re-read under the real principal
- sessions: absolute lifetime fixed at 7 days (was min(ttl, 7d) = 30 min);
  bridge expiry slides with its session; MemoryStore persisted to
  sessions.json (bearer hash only, userData AES-256-GCM sealed)
- README: session lifetime/persistence and DSH compatibility notes

Also includes previously uncommitted uds-auth 0.3.x work in this tree.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 02:11:09 +08:00

51 lines
1.7 KiB
JavaScript

/**
* SEC-21: atomic JSON replace — write temp in same dir, then rename.
*/
import { open, rename, mkdir, unlink } from 'node:fs/promises'
import { dirname, join } from 'node:path'
import { randomBytes } from 'node:crypto'
/**
* @param {string} filePath
* @param {string|Buffer} data
* @param {{ mode?: number }} [opts]
*/
export async function atomicWriteFile(filePath, data, opts = {}) {
const dir = dirname(filePath)
await mkdir(dir, { recursive: true })
const tmp = join(dir, `.${randomBytes(8).toString('hex')}.tmp`)
const mode = opts.mode ?? 0o600
let handle, committed = false
try {
handle = await open(tmp, 'wx', mode)
await handle.writeFile(data, typeof data === 'string' ? 'utf-8' : undefined)
await handle.sync()
await handle.close()
handle = null
await rename(tmp, filePath)
committed = true
if (process.platform !== 'win32') {
// Rename is the commit point. A filesystem that cannot fsync directories
// must not make callers roll back memory after the replacement succeeded.
let directory
try { directory = await open(dir, 'r'); await directory.sync() }
catch { /* directory durability is best effort on unsupported filesystems */ }
finally { await directory?.close().catch(() => {}) }
}
} finally {
await handle?.close()
if (!committed) await unlink(tmp).catch(err => { if (err.code !== 'ENOENT') throw err })
}
}
/**
* @param {string} filePath
* @param {any} obj
* @param {{ mode?: number, pretty?: boolean }} [opts]
*/
export async function atomicWriteJson(filePath, obj, opts = {}) {
const text = opts.pretty === false
? JSON.stringify(obj)
: JSON.stringify(obj, null, 2)
await atomicWriteFile(filePath, text + '\n', { mode: opts.mode })
}