Portal: offene Mitarbeiter-Code-Anmeldungen (staffMfa)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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@@ -0,0 +1,76 @@
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import { randomBytes } from 'node:crypto'
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import { appwriteSessionFetch } from './appwriteClient.js'
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/**
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* Offene Mitarbeiter-Anmeldungen mit E-Mail-Code (Appwrite-2FA). Das Passwort ist geprueft, die
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* Appwrite-Sitzung hat aber erst einen Faktor; erst der richtige Code aus der Mail macht daraus eine
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* Portal-Sitzung. Nur im Speicher: nach einem Neustart meldet man sich neu an.
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*/
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export const MFA_COOKIE = 'webklar_portal_mfa'
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export const MFA_TTL_MS = 10 * 60 * 1000
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const MAX_ATTEMPTS = 5
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const pending = new Map()
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function purgeExpired() {
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const now = Date.now()
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for (const [key, entry] of pending) {
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if (entry.expiresAt <= now) pending.delete(key)
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}
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}
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function liveEntry(key) {
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purgeExpired()
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return (key && pending.get(key)) || null
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}
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async function createChallenge(sessionCookie) {
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const challenge = await appwriteSessionFetch('/account/mfa/challenges', {
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method: 'POST',
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body: { factor: 'email' },
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sessionCookie,
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})
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return challenge.$id
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}
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/** kenso@webklar.com -> k…@webklar.com */
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export function maskEmail(email) {
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const [local, domain] = String(email || '').split('@')
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if (!local || !domain) return ''
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return `${local[0]}…@${domain}`
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}
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export async function startStaffMfa({ userId, email, sessionCookie }) {
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const challengeId = await createChallenge(sessionCookie)
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purgeExpired()
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const key = randomBytes(32).toString('hex')
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pending.set(key, { userId, email, sessionCookie, challengeId, expiresAt: Date.now() + MFA_TTL_MS, attempts: 0 })
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return { key, maskedEmail: maskEmail(email) }
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}
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/** @returns {Promise<{ok: true, userId: string, email: string} | {ok: false, reason: 'invalid' | 'gone'}>} */
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export async function verifyStaffMfa(key, otp) {
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const entry = liveEntry(key)
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if (!entry) return { ok: false, reason: 'gone' }
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try {
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await appwriteSessionFetch('/account/mfa/challenges', {
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method: 'PUT',
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body: { challengeId: entry.challengeId, otp: String(otp || '').trim() },
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sessionCookie: entry.sessionCookie,
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})
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} catch (err) {
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if (err.type !== 'user_invalid_token') throw err
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entry.attempts += 1
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if (entry.attempts >= MAX_ATTEMPTS) pending.delete(key)
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return { ok: false, reason: 'invalid' }
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}
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pending.delete(key)
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return { ok: true, userId: entry.userId, email: entry.email }
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}
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export async function resendStaffMfa(key) {
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const entry = liveEntry(key)
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if (!entry) return false
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entry.challengeId = await createChallenge(entry.sessionCookie)
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return true
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}
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@@ -34,3 +34,48 @@ test('appwriteSessionFetch schickt Sitzung und Sprache', async () => {
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(err) => err.status === 401 && err.type === 'user_invalid_token'
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)
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})
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const { maskEmail, startStaffMfa, verifyStaffMfa, resendStaffMfa } = await import('../server/services/staffMfa.js')
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async function start() {
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const { sessionCookie } = await loginWithAppwrite('kenso@webklar.com', 'geheim-geheim')
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return startStaffMfa({ userId: 'u_staff', email: 'kenso@webklar.com', sessionCookie })
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}
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test('maskEmail: erstes Zeichen, Rest der Adresse ausgeblendet', () => {
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assert.equal(maskEmail('kenso@webklar.com'), 'k…@webklar.com')
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assert.equal(maskEmail('a@b.de'), 'a…@b.de')
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assert.equal(maskEmail(''), '')
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})
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test('Richtiger Code meldet an, danach ist die Anmeldung verbraucht', async () => {
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const { key, maskedEmail } = await start()
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assert.equal(maskedEmail, 'k…@webklar.com')
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assert.deepEqual(await verifyStaffMfa(key, aw.lastOtp('u_staff')), { ok: true, userId: 'u_staff', email: 'kenso@webklar.com' })
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assert.deepEqual(await verifyStaffMfa(key, aw.lastOtp('u_staff')), { ok: false, reason: 'gone' })
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})
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test('Falscher Code: nach 5 Fehlversuchen ist die Anmeldung weg', async () => {
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const { key } = await start()
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for (let i = 0; i < 5; i++) assert.deepEqual(await verifyStaffMfa(key, '000000'), { ok: false, reason: 'invalid' })
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assert.deepEqual(await verifyStaffMfa(key, aw.lastOtp('u_staff')), { ok: false, reason: 'gone' })
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})
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test('Nach 10 Minuten ist die Anmeldung abgelaufen', async (t) => {
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const { key } = await start()
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const now = Date.now()
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t.mock.method(Date, 'now', () => now + 11 * 60 * 1000)
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assert.deepEqual(await verifyStaffMfa(key, aw.lastOtp('u_staff')), { ok: false, reason: 'gone' })
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})
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test('Code erneut senden: neue Mail, nur der neue Code gilt', async () => {
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const { key } = await start()
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const oldOtp = aw.lastOtp('u_staff')
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const before = aw.mailsSent('u_staff')
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assert.equal(await resendStaffMfa(key), true)
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assert.equal(aw.mailsSent('u_staff'), before + 1)
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const newOtp = aw.lastOtp('u_staff')
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if (oldOtp !== newOtp) assert.deepEqual(await verifyStaffMfa(key, oldOtp), { ok: false, reason: 'invalid' })
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assert.equal((await verifyStaffMfa(key, newOtp)).ok, true)
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assert.equal(await resendStaffMfa(key), false)
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})
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