Juan José Mata f6e7234ead Enable Google SSO account creation in Flutter app (#1164)
* Add Google SSO onboarding flow for Flutter mobile app

Previously, mobile users attempting Google SSO without a linked OIDC
identity received an error telling them to link from the web app first.
This adds the same account linking/creation flow that exists on the PWA.

Backend changes:
- sessions_controller: Cache pending OIDC auth with a linking code and
  redirect back to the app instead of returning an error
- api/v1/auth_controller: Add sso_link endpoint to link Google identity
  to an existing account via email/password, and sso_create_account
  endpoint to create a new SSO-only account (respects JIT config)
- routes: Add POST auth/sso_link and auth/sso_create_account

Flutter changes:
- auth_service: Detect account_not_linked callback status, add ssoLink
  and ssoCreateAccount API methods
- auth_provider: Track SSO onboarding state, expose linking/creation
  methods and cancelSsoOnboarding
- sso_onboarding_screen: New screen with tabs to link existing account
  or create new account, pre-filled with Google profile data
- main.dart: Show SsoOnboardingScreen when ssoOnboardingPending is true

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

* Fix broken SSO tests: use MemoryStore cache and correct redirect param

- Sessions test: check `status` param instead of `error` since
  handle_mobile_sso_onboarding sends linking info with status key
- API auth tests: swap null_store for MemoryStore so cache-based
  linking code validation works in test environment

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

* Delay linking-code consumption until SSO link/create succeeds

Split validate_and_consume_linking_code into validate_linking_code
(read-only) and consume_linking_code! (delete). The code is now only
consumed after password verification (sso_link) or successful user
save (sso_create_account), so recoverable errors no longer burn the
one-time code and force a full Google SSO roundtrip.

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

* Make linking-code consumption atomic to prevent race conditions

Move consume_linking_code! (backed by Rails.cache.delete) to after
recoverable checks (bad password, policy rejection) but before
side-effecting operations (identity/user creation). Only the first
caller to delete the cache key gets true, so concurrent requests
with the same code cannot both succeed.

- sso_link: consume after password auth, before OidcIdentity creation
- sso_create_account: consume after allow_account_creation check,
  before User creation
- Bad password still preserves the code for retry
- Add single-use regression tests for both endpoints

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

* Add missing sso_create_account test coverage for blank code and validation failure

- Test blank linking_code returns 400 (bad_request) with proper error
- Test duplicate email triggers user.save failure → 422 with validation errors

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

* Verify cache payload in mobile SSO onboarding test with MemoryStore

The test environment uses :null_store which silently discards cache
writes, so handle_mobile_sso_onboarding's Rails.cache.write was never
verified. Swap in a MemoryStore for this test and assert the full
cached payload (provider, uid, email, name, device_info,
allow_account_creation) at the linking_code key from the redirect URL.

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

* Add rswag/OpenAPI specs for sso_link and sso_create_account endpoints

POST /api/v1/auth/sso_link: documents linking_code + email/password
params, 200 (tokens), 400 (missing code), 401 (invalid creds/expired).

POST /api/v1/auth/sso_create_account: documents linking_code +
optional first_name/last_name params, 200 (tokens), 400 (missing code),
401 (expired code), 403 (creation disabled), 422 (validation errors).

Note: RAILS_ENV=test bundle exec rake rswag:specs:swaggerize should be
run to regenerate docs/api/openapi.yaml once the runtime environment
matches the Gemfile Ruby version.

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

* Preserve OIDC issuer through mobile SSO onboarding flow

handle_mobile_sso_onboarding now caches the issuer from
auth.extra.raw_info.iss so it survives the linking-code round trip.
build_omniauth_hash populates extra.raw_info.iss from the cached
issuer so OidcIdentity.create_from_omniauth stores it correctly.

Previously the issuer was always nil for mobile SSO-created identities
because build_omniauth_hash passed an empty raw_info OpenStruct.

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

* Block MFA users from bypassing second factor via sso_link

sso_link authenticated with email/password but never checked
user.otp_required?, allowing MFA users to obtain tokens without
a second factor. The mobile SSO callback already rejects MFA users
with "mfa_not_supported"; apply the same guard in sso_link before
consuming the linking code or creating an identity.

Returns 401 with mfa_required: true, consistent with the login
action's MFA response shape.

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

* Fix NoMethodError in SSO link MFA test

Replace non-existent User.generate_otp_secret class method with
ROTP::Base32.random(32), matching the pattern used in User#setup_mfa!.

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

* Assert linking code survives rejected SSO create account

Add cache persistence assertion to "should reject SSO create account
when not allowed" test, verifying the linking code is not consumed on
the 403 path. This mirrors the pattern used in the invalid-password
sso_link test.

The other rejection tests (expired/missing linking code) don't have a
valid cached code to check, so no assertion is needed there.

https://claude.ai/code/session_011ag1qSfriUg6j7TqFgbS5c

---------

Co-authored-by: Claude <noreply@anthropic.com>
2026-03-09 16:47:32 +01:00
2026-01-30 00:34:46 +01:00
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Ask DeepWiki View performance data on Skylight Dosu

sure_shot

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Sure: The personal finance app for everyone

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Important

This repository is a community fork of the now-abandoned Maybe Finance project.
Learn more in their final release doc.

Backstory

The Maybe Finance team spent most of 20212022 building a full-featured personal finance and wealth management app. It even included an “Ask an Advisor” feature that connected users with a real CFP/CFA — all included with your subscription.

The business end of things didn't work out, and so they stopped developing the app in mid-2023.

After spending nearly $1 million on development (employees, contractors, data providers, infra, etc.), the team open-sourced the app. Their goal was to let users self-host it for free — and eventually launch a hosted version for a small fee.

They actually did launch that hosted version … briefly.

That also didnt work out — at least not as a sustainable B2C business — so now here we are: hosting a community-maintained fork to keep the codebase alive and see where this can go next.

Join us!

Hosting Sure

Sure is a fully working personal finance app that can be self hosted with Docker.

Forking and Attribution

This repo is a community fork of the archived Maybe Finance repo. Youre free to fork it under the AGPLv3 license — but wed love it if you stuck around and contributed here instead.

To stay compliant and avoid trademark issues:

  • Be sure to include the original AGPLv3 license and clearly state in your README that your fork is based on Maybe Finance but is not affiliated with or endorsed by Maybe Finance Inc.
  • "Maybe" is a trademark of Maybe Finance Inc. and therefore, use of it is NOT allowed in forked repositories (or the logo)

Performance Issues

With data-heavy apps, inevitably, there are performance issues. We've set up a public dashboard showing the problematic requests seen on the demo site, along with the stacktraces to help debug them.

https://www.skylight.io/app/applications/s6PEZSKwcklL/recent/6h/endpoints

Any contributions that help improve performance are very much welcome.

Local Development Setup

If you are trying to self-host the app, read this guide to get started.

The instructions below are for developers to get started with contributing to the app.

Requirements

  • See .ruby-version file for required Ruby version
  • PostgreSQL >9.3 (latest stable version recommended)
  • Redis > 5.4 (latest stable version recommended)

Getting Started

cd sure
cp .env.local.example .env.local
bin/setup
bin/dev

# Optionally, load demo data
rake demo_data:default

Visit http://localhost:3000 to view the app.

If you loaded the optional demo data, log in with these credentials:

  • Email: user@example.com
  • Password: Password1!

For further instructions, see guides below.

Setup Guides

One-click

Run on PikaPods

Deploy on Railway

License and Trademarks

Maybe and Sure are both distributed under an AGPLv3 license.

  • "Maybe" is a trademark of Maybe Finance, Inc.
  • "Sure" is not, and refers to this community fork.
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