46 lines
3.5 KiB
TypeScript
Executable File
46 lines
3.5 KiB
TypeScript
Executable File
import { lstat, readFile } from 'node:fs/promises';
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import type { PoolConfig } from 'pg';
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export function custodyStorage(env: NodeJS.ProcessEnv = process.env): 'sqlite' | 'postgres' {
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const value = env.WIKIDECK_CUSTODY_STORAGE ?? 'sqlite';
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if (value !== 'sqlite' && value !== 'postgres') throw new Error('Invalid custody storage backend');
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return value;
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}
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async function secretFile(path: string | undefined): Promise<string> {
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if (!path) throw new Error('Custody PostgreSQL secret file is required');
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const info = await lstat(path);
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if (!info.isFile() || info.isSymbolicLink() || info.size > 16384 || info.size === 0) throw new Error('Invalid PostgreSQL secret file');
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return (await readFile(path, 'utf8')).trim();
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}
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/** No URL logging, no TLS options in a connection string overriding verified transport. */
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export async function postgresConfig(env: NodeJS.ProcessEnv = process.env): Promise<PoolConfig> {
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try {
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const url = new URL(await secretFile(env.WIKIDECK_CUSTODY_PG_URL_FILE));
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if (!['postgres:', 'postgresql:'].includes(url.protocol) || !url.hostname || url.search || url.hash ||
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!/^\/[a-zA-Z0-9_-]+$/.test(url.pathname)) throw new Error('Invalid PostgreSQL URL');
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const insecure = env.WIKIDECK_CUSTODY_PG_LOCAL_TEST === '1';
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const transport = env.WIKIDECK_CUSTODY_PG_TRANSPORT ?? 'tls';
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if (transport !== 'tls' && transport !== 'infrastructure') throw new Error('Invalid PostgreSQL transport');
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const infrastructure = transport === 'infrastructure';
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const acknowledgement = env.WIKIDECK_CUSTODY_PG_INFRASTRUCTURE_ACK;
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if (infrastructure) {
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if (acknowledgement !== 'encrypted-authenticated-path-enforced' || insecure || env.WIKIDECK_CUSTODY_PG_CA_FILE) {
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throw new Error('Infrastructure transport requires explicit acknowledgement without conflicting TLS/test settings');
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}
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} else if (acknowledgement !== undefined) throw new Error('Infrastructure acknowledgement without infrastructure transport');
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if (env.WIKIDECK_CUSTODY_PG_LOCAL_TEST !== undefined && !insecure) throw new Error('Invalid local-test switch');
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if (insecure && !['127.0.0.1', 'localhost', '[::1]'].includes(url.hostname)) throw new Error('Non-TLS test connections must be loopback');
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if (!insecure && (!url.username || !url.password)) throw new Error('PostgreSQL credentials required');
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if (url.port && (!/^\d+$/.test(url.port) || Number(url.port) < 1 || Number(url.port) > 65535)) throw new Error('Invalid PostgreSQL port');
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const ca = env.WIKIDECK_CUSTODY_PG_CA_FILE ? await secretFile(env.WIKIDECK_CUSTODY_PG_CA_FILE) : undefined;
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return { host: url.hostname.replace(/^\[|\]$/g, ''), port: url.port ? Number(url.port) : 5432,
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database: url.pathname.slice(1), user: decodeURIComponent(url.username), password: decodeURIComponent(url.password),
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// Infrastructure mode is explicit plaintext on the driver's hop. It does NOT configure or
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// verify a service mesh, peer identity, network policy, or encryption outside this process.
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ssl: insecure || infrastructure ? false : { rejectUnauthorized: true, ...(ca ? { ca } : {}) },
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max: 4, connectionTimeoutMillis: 5000, idleTimeoutMillis: 10000,
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statement_timeout: 10000, lock_timeout: 3000, idle_in_transaction_session_timeout: 10000,
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application_name: 'wikideck-custody', options: '-c search_path=wk_custody,pg_catalog' };
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} catch { throw new Error('Invalid or inaccessible custody PostgreSQL configuration; check secret files and explicit transport policy'); }
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}
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