stack/apps/backend
BilalG1 c0fefd3b7a
feat(backend): dual-accept hexclave-mobile-oauth-url:// alongside legacy scheme (#1501)
## What

1. **Backend dual-accept**: `isAcceptedNativeAppUrl()` accepts both
`stack-auth-mobile-oauth-url://` (legacy) and
`hexclave-mobile-oauth-url://` (canonical).
2. **Swift SDK switches to the canonical scheme**: `StackAuth` Swift SDK
now emits and intercepts `hexclave-mobile-oauth-url://` for native-app
OAuth callbacks.

Before this PR, `hexclave-mobile-oauth-url` existed only inside
`RENAME-TO-HEXCLAVE.md` — not in any code.

## Why the Swift SDK change is safe

The Swift SDK uses
`ASWebAuthenticationSession(url:callbackURLScheme:completion:)`
([StackClientApp.swift:197-199](sdks/implementations/swift/Sources/StackAuth/StackClientApp.swift#L197)).
With this API, iOS intercepts the callback scheme **ephemerally** — no
`Info.plist` registration is required. The Swift SDK source has no
`Info.plist`, and the example apps' `pbxproj` registers no
`CFBundleURLSchemes`. So:

- New customer builds against the updated SDK → emit new scheme →
backend accepts → `ASWebAuthenticationSession` intercepts on new scheme
→ works.
- Already-shipped customer App Store binaries on older SDK versions →
emit old scheme → backend still accepts → works.
- **No customer ever has to update an `Info.plist`.**

The only real backward-compat constraint is that the backend can never
drop the old scheme (already-shipped customer binaries have the constant
baked into them). Hence the dual-accept.

(Note: `RENAME-TO-HEXCLAVE.md` line 88 incorrectly attributes the
constraint to `Info.plist` registration. That's not how the SDK works —
the scheme is baked into the SDK binary, not the customer's plist. The
fix described in that doc is essentially the right shape; only the
mechanism description is wrong.)

## Changes

| File | Change |
|---|---|
| `packages/stack-shared/src/utils/redirect-urls.tsx` |
`isAcceptedNativeAppUrl()` accepts either protocol. |
| `apps/backend/src/lib/redirect-urls.test.tsx` | Adds positive
assertions for the new scheme in `isAcceptedNativeAppUrl`; parity
negative assertions in `validateRedirectUrl`. |
| `sdks/implementations/swift/Sources/StackAuth/StackClientApp.swift` |
`callbackScheme` → `"hexclave-mobile-oauth-url"`; fatalError example
strings updated. |
| `sdks/implementations/swift/Tests/StackAuthTests/OAuthTests.swift` |
Test fixture URLs updated (no assertions depend on the scheme literal).
|
|
`sdks/implementations/swift/Examples/StackAuthiOS/.../StackAuthiOSApp.swift`
| Default values in the example UI. |
|
`sdks/implementations/swift/Examples/StackAuthMacOS/.../StackAuthMacOSApp.swift`
| Default values in the example UI. |
| `sdks/implementations/swift/README.md` | Documents the new canonical
scheme; compat note for the legacy one. |
| `sdks/spec/src/apps/client-app.spec.md` | New scheme is canonical;
legacy is "accepted indefinitely for already-shipped customer app
binaries built against older SDK versions." |

## Verification

- `pnpm test run apps/backend/src/lib/redirect-urls.test.tsx` — 34/34
passing (was 33; one new `it` block plus parity assertions).
- `pnpm --filter @stackframe/stack-shared --filter @stackframe/backend
run lint` — clean.
- `pnpm --filter @stackframe/stack-shared --filter @stackframe/backend
run typecheck` — clean.
- Swift assertions in `OAuthTests.swift` do not check the scheme literal
— they only check `oauth/authorize/<provider>`, state/verifier
non-emptiness, and that `redirectUrl` round-trips. The fixture-value
change is mechanical.

## Risk

Low. Backend behavior strictly widens (every URL accepted before is
still accepted). Swift SDK change is internal to OAuth callback
handling, requires no customer migration, and is paired with the backend
dual-accept landing in the same PR.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **New Features**
* Adopted the canonical OAuth callback scheme
"hexclave-mobile-oauth-url://" for native apps while continuing to
accept the legacy "stack-auth-mobile-oauth-url://".

* **Documentation**
* Updated SDK docs, examples, and spec guidance to reference the
canonical callback scheme and clarify legacy acceptance.

* **Tests & Samples**
* Updated tests and example apps to use and validate the canonical
scheme.

* **Style**
* Rebranded the dev-tool trigger icon to the new Hexclave monochrome
logo.

<!-- review_stack_entry_start -->

[![Review Change
Stack](https://storage.googleapis.com/coderabbit_public_assets/review-stack-in-coderabbit-ui.svg)](https://app.coderabbit.ai/change-stack/hexclave/stack-auth/pull/1501?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)

<!-- review_stack_entry_end -->
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-05-27 15:44:06 -07:00
..
prisma feat(hexclave): PR 2 — visible rebrand (Hexclave brand goes public) (#1481) 2026-05-26 19:18:20 -07:00
scripts feat(hexclave): PR 2 — visible rebrand (Hexclave brand goes public) (#1481) 2026-05-26 19:18:20 -07:00
src feat(backend): dual-accept hexclave-mobile-oauth-url:// alongside legacy scheme (#1501) 2026-05-27 15:44:06 -07:00
.env feat(hexclave): PR 2 — visible rebrand (Hexclave brand goes public) (#1481) 2026-05-26 19:18:20 -07:00
.env.development feat(hexclave): PR 2 — visible rebrand (Hexclave brand goes public) (#1481) 2026-05-26 19:18:20 -07:00
.eslintrc.cjs tsup for stack-shared (#647) 2025-04-28 21:26:52 -07:00
.gitignore private files n sm build shit (#1276) 2026-03-23 12:31:36 -07:00
instrumentation-client.ts Upgrade backend to Next.js 16 2025-12-12 16:59:07 -08:00
LICENSE Split backend and dashboard (#83) 2024-06-18 15:49:31 +02:00
next.config.mjs private files n sm build shit (#1276) 2026-03-23 12:31:36 -07:00
package.json feat(hexclave): PR 2 — visible rebrand (Hexclave brand goes public) (#1481) 2026-05-26 19:18:20 -07:00
prisma.config.ts [Fix]: Assortment of Bugs with Timefold Table and Payments (#1348) 2026-04-18 14:17:24 -07:00
tsconfig.json Fix lint 2026-02-27 09:59:26 -08:00
vercel.json External db sync (#1036) 2026-02-05 12:04:31 -08:00
vitest.config.ts Fix flaky tests and preexisting CI failures (#1443) 2026-05-20 10:00:11 -07:00
vitest.setup.ts Customizable ports (#962) 2025-10-20 15:24:47 -07:00