Preview: Variablen verschluesselt

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

test/previewEnv.test.js

@@ -0,0 +1,81 @@
+import { test } from 'node:test'
+import assert from 'node:assert/strict'
+import crypto from 'node:crypto'
+import {
+  encryptEnv, decryptEnv, validateEnvChange, envNames, maskLog, envKey,
+} from '../server/services/previewEnv.js'
+
+const key = crypto.randomBytes(32)
+
+test('Round-Trip und Format', () => {
+  const s = encryptEnv({ A: 'x', B: 'ü' }, key)
+  assert.match(s, /^v1:[^:]+:[^:]+:[^:]+$/)
+  assert.deepEqual(decryptEnv(s, key), { A: 'x', B: 'ü' })
+  assert.notEqual(encryptEnv({ A: 'x' }, key), encryptEnv({ A: 'x' }, key))
+})
+
+test('leer', () => {
+  assert.deepEqual(decryptEnv(encryptEnv({}, key), key), {})
+  assert.deepEqual(decryptEnv('', key), {})
+  assert.deepEqual(decryptEnv(null, key), {})
+})
+
+test('falscher Schluessel und manipulierter Tag => Fehler', () => {
+  const s = encryptEnv({ A: 'geheim' }, key)
+  assert.throws(() => decryptEnv(s, crypto.randomBytes(32)))
+  const p = s.split(':')
+  const tag = Buffer.from(p[2], 'base64')
+  tag[0] ^= 1
+  p[2] = tag.toString('base64')
+  assert.throws(() => decryptEnv(p.join(':'), key))
+  assert.throws(() => decryptEnv('v2:a:b:c', key))
+})
+
+test('envNames sortiert', () => {
+  assert.deepEqual(envNames(encryptEnv({ B: '1', A: '2' }, key), key), ['A', 'B'])
+  assert.deepEqual(envNames('', key), [])
+})
+
+test('envKey', () => {
+  const old = process.env.PREVIEW_ENV_KEY
+  try {
+    delete process.env.PREVIEW_ENV_KEY
+    assert.equal(envKey(), null)
+    process.env.PREVIEW_ENV_KEY = Buffer.alloc(16).toString('base64')
+    assert.equal(envKey(), null)
+    process.env.PREVIEW_ENV_KEY = key.toString('base64')
+    assert.ok(envKey().equals(key))
+  } finally {
+    if (old === undefined) delete process.env.PREVIEW_ENV_KEY
+    else process.env.PREVIEW_ENV_KEY = old
+  }
+})
+
+test('validateEnvChange', () => {
+  let r = validateEnvChange({ A: '1' }, { set: { B: '2' }, remove: ['A', 'NIX'] })
+  assert.deepEqual(r, { ok: true, env: { B: '2' } })
+  assert.equal(validateEnvChange({}, { set: { abc: '1' } }).ok, false)
+  assert.equal(validateEnvChange({}, { set: { '1A': '1' } }).ok, false)
+  assert.equal(validateEnvChange({}, { set: { A: 'x'.repeat(4097) } }).ok, false)
+  assert.equal(validateEnvChange({}, { set: { A: 'x'.repeat(4096) } }).ok, true)
+  assert.equal(validateEnvChange({}, { set: { A: 'ü'.repeat(2049) } }).ok, false)
+  assert.equal(validateEnvChange({}, { set: { A: 1 } }).ok, false)
+  assert.equal(validateEnvChange({}, { set: { A: 'a\nb' } }).ok, false)
+  assert.equal(validateEnvChange({}, { set: { A: 'a\0b' } }).ok, false)
+  const many = Object.fromEntries(Array.from({ length: 31 }, (_, i) => [`V${i}`, '1']))
+  r = validateEnvChange({}, { set: many })
+  assert.equal(r.ok, false)
+  assert.match(r.error, /30/)
+  const thirty = Object.fromEntries(Array.from({ length: 30 }, (_, i) => [`V${i}`, '1']))
+  assert.equal(validateEnvChange(thirty, { set: { V0: '2' } }).ok, true)
+  assert.equal(validateEnvChange(thirty, { set: { NEU: '2' }, remove: ['V1'] }).ok, true)
+  assert.equal(validateEnvChange(thirty, { set: { NEU: '2' } }).ok, false)
+  assert.equal(validateEnvChange({}, {}).ok, true)
+})
+
+test('maskLog', () => {
+  const env = { A: 'geheim', B: 'abc', C: 'geheimer' , D: 'a.b+'}
+  assert.equal(maskLog('x geheimer y geheim z abc a.b+ axbb', env), 'x ••• y ••• z abc ••• axbb')
+  assert.equal(maskLog('', env), '')
+  assert.equal(maskLog('text', {}), 'text')
+})