feat: migrate auth to EncryptID SDK client

Replace duplicated WebAuthn ceremony code with SDK EncryptIDClient.
Add @encryptid/sdk dependency and cookie persistence.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Jeff Emmett 2026-02-15 09:35:58 -07:00
parent 96e46af9dc
commit a4caa71621
2 changed files with 9 additions and 105 deletions

View File

@ -11,6 +11,7 @@
"type-check": "tsc --noEmit"
},
"dependencies": {
"@encryptid/sdk": "file:../encryptid-sdk",
"jszip": "^3.10.1",
"maplibre-gl": "^5.0.0",
"nanoid": "^5.0.9",

View File

@ -3,12 +3,15 @@
*
* Optional authentication anonymous access remains the default.
* When authenticated, the user gets a persistent DID-based identity.
* Uses Zustand with localStorage persistence, delegates WebAuthn ceremony to @encryptid/sdk.
*/
import { create } from 'zustand';
import { persist } from 'zustand/middleware';
import { EncryptIDClient } from '@encryptid/sdk/client';
const ENCRYPTID_SERVER = process.env.NEXT_PUBLIC_ENCRYPTID_SERVER_URL || 'https://encryptid.jeffemmett.com';
const client = new EncryptIDClient(ENCRYPTID_SERVER);
interface AuthState {
/** Whether the user is authenticated via EncryptID */
@ -30,17 +33,6 @@ interface AuthState {
logout: () => void;
}
function toBase64url(buffer: ArrayBuffer): string {
return btoa(String.fromCharCode(...new Uint8Array(buffer)))
.replace(/\+/g, '-')
.replace(/\//g, '_')
.replace(/=+$/, '');
}
function fromBase64url(str: string): Uint8Array {
return Uint8Array.from(atob(str.replace(/-/g, '+').replace(/_/g, '/')), c => c.charCodeAt(0));
}
export const useAuthStore = create<AuthState>()(
persist(
(set) => ({
@ -53,51 +45,8 @@ export const useAuthStore = create<AuthState>()(
login: async () => {
set({ loading: true });
try {
// Step 1: Get auth options
const startRes = await fetch(`${ENCRYPTID_SERVER}/api/auth/start`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({}),
});
const { options } = await startRes.json();
// Step 2: WebAuthn ceremony
const publicKeyOptions: PublicKeyCredentialRequestOptions = {
challenge: fromBase64url(options.challenge).buffer as ArrayBuffer,
rpId: options.rpId,
userVerification: options.userVerification as UserVerificationRequirement,
timeout: options.timeout,
allowCredentials: options.allowCredentials?.map((c: any) => ({
type: c.type as PublicKeyCredentialType,
id: fromBase64url(c.id).buffer as ArrayBuffer,
transports: c.transports as AuthenticatorTransport[],
})),
};
const assertion = await navigator.credentials.get({ publicKey: publicKeyOptions }) as PublicKeyCredential;
if (!assertion) throw new Error('Authentication cancelled');
const response = assertion.response as AuthenticatorAssertionResponse;
// Step 3: Complete auth
const completeRes = await fetch(`${ENCRYPTID_SERVER}/api/auth/complete`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
challenge: options.challenge,
credential: {
credentialId: assertion.id,
authenticatorData: toBase64url(response.authenticatorData),
clientDataJSON: toBase64url(response.clientDataJSON),
signature: toBase64url(response.signature),
userHandle: response.userHandle ? toBase64url(response.userHandle) : null,
},
}),
});
const result = await completeRes.json();
if (!result.success) throw new Error(result.error || 'Authentication failed');
const result = await client.authenticate();
document.cookie = `encryptid_token=${result.token};path=/;max-age=900;SameSite=Lax`;
set({
isAuthenticated: true,
token: result.token,
@ -114,55 +63,8 @@ export const useAuthStore = create<AuthState>()(
register: async (username: string) => {
set({ loading: true });
try {
// Step 1: Get registration options
const startRes = await fetch(`${ENCRYPTID_SERVER}/api/register/start`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ username, displayName: username }),
});
const { options, userId } = await startRes.json();
// Step 2: WebAuthn ceremony
const publicKeyOptions: PublicKeyCredentialCreationOptions = {
challenge: fromBase64url(options.challenge).buffer as ArrayBuffer,
rp: options.rp,
user: {
id: fromBase64url(options.user.id).buffer as ArrayBuffer,
name: options.user.name,
displayName: options.user.displayName,
},
pubKeyCredParams: options.pubKeyCredParams,
authenticatorSelection: options.authenticatorSelection,
timeout: options.timeout,
attestation: options.attestation as AttestationConveyancePreference,
};
const credential = await navigator.credentials.create({ publicKey: publicKeyOptions }) as PublicKeyCredential;
if (!credential) throw new Error('Registration cancelled');
const response = credential.response as AuthenticatorAttestationResponse;
// Step 3: Complete registration
const completeRes = await fetch(`${ENCRYPTID_SERVER}/api/register/complete`, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
challenge: options.challenge,
userId,
username,
credential: {
credentialId: credential.id,
publicKey: toBase64url(response.getPublicKey?.() || response.attestationObject),
attestationObject: toBase64url(response.attestationObject),
clientDataJSON: toBase64url(response.clientDataJSON),
transports: (response as any).getTransports?.() || [],
},
}),
});
const result = await completeRes.json();
if (!result.success) throw new Error(result.error || 'Registration failed');
const result = await client.register(username);
document.cookie = `encryptid_token=${result.token};path=/;max-age=900;SameSite=Lax`;
set({
isAuthenticated: true,
token: result.token,
@ -177,6 +79,7 @@ export const useAuthStore = create<AuthState>()(
},
logout: () => {
document.cookie = 'encryptid_token=;path=/;max-age=0;SameSite=Lax';
set({
isAuthenticated: false,
token: null,