mirror of
https://github.com/bulwarkmail/webmail.git
synced 2026-10-31 00:12:39 +00:00
71 lines
2.5 KiB
TypeScript
71 lines
2.5 KiB
TypeScript
import { randomBytes } from 'node:crypto';
|
|
import { writeFile } from 'node:fs/promises';
|
|
import { configManager } from '@/lib/admin/config-manager';
|
|
import { ensureStateDir, getStatePath } from '@/lib/admin/paths';
|
|
import { readFileEnv } from '@/lib/read-file-env';
|
|
|
|
/** Written on first start when no secret is configured (see ensureSessionSecret). */
|
|
const GENERATED_SECRET_FILE = '.session-secret';
|
|
|
|
/**
|
|
* Resolve the session secret from any of the supported sources, in priority
|
|
* order:
|
|
* 1. SESSION_SECRET env var
|
|
* 2. SESSION_SECRET_FILE-pointed file
|
|
* 3. Admin override in config.json (set by the setup wizard)
|
|
* 4. The secret generated on first start, in the admin state dir
|
|
*
|
|
* Returns an empty string when nothing is configured. Callers must treat
|
|
* empty as "feature disabled" rather than crashing.
|
|
*
|
|
* The configManager fallback exists so the web installer can persist the
|
|
* secret without touching .env files. It only takes effect if the env vars
|
|
* aren't set, so existing deployments aren't affected.
|
|
*/
|
|
export function getSessionSecret(): string {
|
|
const fromEnv = process.env.SESSION_SECRET;
|
|
if (fromEnv) return fromEnv;
|
|
|
|
const fromFile = readFileEnv(process.env.SESSION_SECRET_FILE);
|
|
if (fromFile) return fromFile;
|
|
|
|
const fromAdmin = configManager.get<string>('sessionSecret', '');
|
|
if (fromAdmin) return fromAdmin;
|
|
|
|
const fromAdminFile = readFileEnv(
|
|
configManager.get<string>('sessionSecretFile', ''),
|
|
);
|
|
if (fromAdminFile) return fromAdminFile;
|
|
|
|
return readFileEnv(getStatePath(GENERATED_SECRET_FILE)) || "";
|
|
}
|
|
|
|
export function hasSessionSecret(): boolean {
|
|
return getSessionSecret().length > 0;
|
|
}
|
|
|
|
/**
|
|
* Generate a session secret when none is configured, so remember me and
|
|
* settings sync work on installs that skip the setup wizard (JMAP_SERVER_URL
|
|
* set in the environment). It lives in the state dir, which is always
|
|
* writable and a volume in docker-compose.yml; without a persistent volume a
|
|
* restart issues a new one and signs everyone out.
|
|
*
|
|
* Returns true when this call wrote a new secret.
|
|
*/
|
|
export async function ensureSessionSecret(): Promise<boolean> {
|
|
if (hasSessionSecret()) return false;
|
|
await ensureStateDir();
|
|
try {
|
|
// 'wx' so two processes starting at once can't overwrite each other's.
|
|
await writeFile(getStatePath(GENERATED_SECRET_FILE), randomBytes(32).toString('base64'), {
|
|
flag: 'wx',
|
|
mode: 0o600,
|
|
});
|
|
return true;
|
|
} catch (error) {
|
|
if ((error as NodeJS.ErrnoException).code === 'EEXIST') return false;
|
|
throw error;
|
|
}
|
|
}
|