Adds opt-in biometric login to the Capacitor app. Replaces the password
step on subsequent sign-ins; the 2FA step (if any) still applies — by
design, defense in depth.
How it works:
- After a successful password sign-in on a Capacitor build, prompt the
user to enroll. If they accept, capacitor-native-biometric.setCredentials
stores the (email, password) pair in the iOS Keychain / Android Keystore
with biometric-protected access. The local flag ped_bio_enabled=1 is
set so the next launch knows to probe.
- On the login form, if isNativeApp() + bioStored() + bioAvailable.ok,
reveal the "Sign in with Face ID / Touch ID / fingerprint" button at
the top. Label is set from the actual biometryType returned by the
plugin so users see what their device supports.
- Tap → verifyIdentity (OS prompt) → getCredentials → fill the email +
password fields → fire the existing form submit so all the regular
flow runs (turnstile, 2FA prompt, error handling, session storage).
- Explicit logout deletes credentials AND clears the local flag,
hiding the button on the next visit. Auto-logout (token expiry,
network) does NOT come through that path, so biometric persists
across silent session resets.
Storage choice — password not JWT:
- JWTs expire and the storage would constantly need refresh.
- Storing the password lets the standard /api/auth/login flow run,
which already handles password-rotation (a stale stored password
just fails 401 → user falls back to typing the new one → re-enrolls).
- The password sits in OS-level secure storage, accessible only after
successful biometric verification — same security posture as a
password manager autofill.
Files:
- mobile/package.json: add capacitor-native-biometric@^5.0.0 (Capacitor 6
compat)
- mobile/android/app/src/main/AndroidManifest.xml: add USE_BIOMETRIC
uses-permission
- mobile/ios/App/App/Info.plist: add NSFaceIDUsageDescription string
- public/js/auth.js: bioPlugin/bioAvailable/bioStored/bioEnroll/
bioRetrieve/bioForget helpers; window.PedBio surface; reveal-on-load;
click handler; post-login enrollment prompt; logout cleanup
- public/index.html: hidden #btn-bio-login + #bio-divider above the
email field on the login form
- public/css/styles.css: themed gradient button + hover lift
- mobile/README.md: feature list updated
Build steps for Daniel:
cd mobile && npm install # picks up capacitor-native-biometric
npx cap sync # ports the plugin into android/ + ios/
# then build APK / IPA as usual
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