47 lines
2.7 KiB
JavaScript
47 lines
2.7 KiB
JavaScript
const { generateKeyPairSync } = require('node:crypto');
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const { mkdir, readFile, writeFile } = require('node:fs/promises');
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const path = require('node:path');
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const { isIP } = require('node:net');
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const { recoverBackupKey } = require('../lib/online-backup-recovery');
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async function main() {
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const [command, ...args] = process.argv.slice(2);
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if (command === 'init' && args.length === 1) {
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const directory = path.resolve(args[0]);
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await mkdir(directory, { mode: 0o700 });
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const pair = generateKeyPairSync('rsa', {
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modulusLength: 3072,
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publicKeyEncoding: { type: 'spki', format: 'pem' },
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privateKeyEncoding: { type: 'pkcs8', format: 'pem' }
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});
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await writeFile(path.join(directory, 'recovery-private.pem'), pair.privateKey, { flag: 'wx', mode: 0o600 });
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await writeFile(path.join(directory, 'recovery-public.pem'), pair.publicKey, { flag: 'wx', mode: 0o600 });
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process.stdout.write('Schlüsselpaar erstellt. Private Datei separat sichern; nur die öffentliche Datei auf den Server übertragen.\n');
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return;
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}
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if (command === 'recover' && (args.length === 3 || (args.length === 4 && args[3] === '--details'))) {
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const [recordFile, privateFile, outputFile] = args.slice(0, 3).map(value => path.resolve(value));
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const id = path.basename(recordFile, '.json');
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if (!/^[A-Za-z0-9_-]{22}$/.test(id)) throw new Error('Der Datensatz muss seinen ursprünglichen Dateinamen behalten');
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const record = JSON.parse(await readFile(recordFile, 'utf8'));
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const key = recoverBackupKey(id, record, await readFile(privateFile, 'utf8'));
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let output = key;
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if (args[3] === '--details') {
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const date = new Date(record.createdAt);
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if (!Number.isFinite(date.getTime())) throw new Error('Invalid creation date');
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const formatted = new Intl.DateTimeFormat('de-DE', { timeZone: 'Europe/Berlin', day: '2-digit', month: '2-digit', year: 'numeric', hour: '2-digit', minute: '2-digit', hourCycle: 'h23' }).format(date).replace(', ', ' - ');
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const sourceIp = typeof record.sourceIp === 'string' && isIP(record.sourceIp) ? record.sourceIp : 'unbekannt';
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output = `${formatted} | IP: ${sourceIp} | ${key}`;
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}
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await writeFile(outputFile, `${output}\n`, { flag: 'wx', mode: 0o600 });
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process.stdout.write('Online-Schlüssel in der angegebenen Ausgabedatei gespeichert.\n');
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return;
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}
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throw new Error('Aufruf: node scripts/backup-recovery.cjs init <neuer-Ordner> | recover <Datensatz.json> <private.pem> <neue-Ausgabedatei> [--details]');
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}
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main().catch(() => {
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process.stderr.write('Wiederherstellung fehlgeschlagen. Aufruf, Dateipfade, Ablaufdatum und Schlüsselzuordnung prüfen. Vorhandene Dateien werden nicht überschrieben.\n');
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process.exitCode = 1;
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});
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