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Enhance authentication options in the server API by adding CORS headers to support cross-device authentication. Implement handling for preflight OPTIONS requests and increase timeout for registration and authentication processes to 5 minutes, improving user experience and compatibility across devices.
107 lines
3.4 KiB
JavaScript
107 lines
3.4 KiB
JavaScript
import { verifyRegistrationResponse } from '@simplewebauthn/server'
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import { getUserFromToken, readUsers, writeUsers } from '../../../utils/auth.js'
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import { getWebAuthnConfig } from '../../../utils/webauthn-config.js'
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import { clearRegistrationChallenge, getRegistrationChallenge } from '../../../utils/webauthn-challenges.js'
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import { toBase64Url } from '../../../utils/webauthn-encoding.js'
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import { writeAuditLog } from '../../../utils/audit-log.js'
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export default defineEventHandler(async (event) => {
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// CORS-Header für Cross-Device Authentication
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const origin = getHeader(event, 'origin')
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if (origin) {
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setHeader(event, 'Access-Control-Allow-Origin', origin)
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setHeader(event, 'Access-Control-Allow-Credentials', 'true')
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setHeader(event, 'Access-Control-Allow-Methods', 'POST, OPTIONS')
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setHeader(event, 'Access-Control-Allow-Headers', 'Content-Type, Authorization')
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}
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if (getMethod(event) === 'OPTIONS') {
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return { success: true }
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}
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const token = getCookie(event, 'auth_token')
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const user = token ? await getUserFromToken(token) : null
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if (!user) {
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throw createError({ statusCode: 401, statusMessage: 'Nicht authentifiziert' })
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}
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const body = await readBody(event)
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const response = body?.credential
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if (!response) {
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throw createError({ statusCode: 400, statusMessage: 'Credential fehlt' })
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}
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const expectedChallenge = getRegistrationChallenge(user.id)
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if (!expectedChallenge) {
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throw createError({ statusCode: 400, statusMessage: 'Registrierungs-Session abgelaufen. Bitte erneut versuchen.' })
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}
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const { origin, rpId, requireUV } = getWebAuthnConfig()
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let verification
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try {
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verification = await verifyRegistrationResponse({
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response,
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expectedChallenge,
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expectedOrigin: origin,
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expectedRPID: rpId,
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requireUserVerification: requireUV
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})
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} finally {
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clearRegistrationChallenge(user.id)
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}
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const { verified, registrationInfo } = verification
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if (!verified || !registrationInfo) {
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await writeAuditLog('auth.passkey.registration.failed', { userId: user.id })
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throw createError({ statusCode: 400, statusMessage: 'Passkey-Registrierung fehlgeschlagen' })
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}
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const {
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credentialID,
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credentialPublicKey,
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counter,
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credentialDeviceType,
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credentialBackedUp
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} = registrationInfo
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const credentialId = toBase64Url(credentialID)
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const publicKey = toBase64Url(credentialPublicKey)
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const users = await readUsers()
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const idx = users.findIndex(u => u.id === user.id)
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if (idx === -1) {
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throw createError({ statusCode: 404, statusMessage: 'Benutzer nicht gefunden' })
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}
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const u = users[idx]
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if (!Array.isArray(u.passkeys)) u.passkeys = []
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// Duplikate verhindern
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if (u.passkeys.some(pk => pk.credentialId === credentialId)) {
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return { success: true, message: 'Passkey ist bereits registriert.' }
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}
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u.passkeys.push({
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id: `${Date.now()}`,
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credentialId,
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publicKey,
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counter: Number(counter) || 0,
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transports: Array.isArray(response.transports) ? response.transports : undefined,
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deviceType: credentialDeviceType,
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backedUp: !!credentialBackedUp,
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createdAt: new Date().toISOString(),
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lastUsedAt: null,
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name: body?.name ? String(body.name).slice(0, 80) : 'Passkey'
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})
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users[idx] = u
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await writeUsers(users)
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await writeAuditLog('auth.passkey.registered', { userId: user.id })
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return { success: true, message: 'Passkey hinzugefügt.' }
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})
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