stack/apps/backend/src
Will ec3875d1b7
Change JWT issuer (#656)
This PR address #651 

The `iss` domain [should
be](https://mojoauth.com/glossary/jwt-issuer/#:~:text=The%20authorization%20server%20can%20then%20use%20the%20%22iss%22%20claim%20to%20verify%20the%20validity%20of%20the%20JWT%2C%20and%20to%20determine%20which%20client%20is%20requesting%20access%20to%20the%20protected%20resources.)
a publicly accessible domain that can be used to verify the validity of
the JWT.

I believe this domain should be `api.stack-auth.com` as your `jwks.json`
file is located at this domain
(`https://api.stack-auth.com/api/v1/projects/<your-project-id>/.well-known/jwks.json`)

Alternatively, you could make `jwks.json` available at your
`https://access-token.jwt-signature.stack-auth.com` domain. Currently a
DNS lookup fails:

```
$> nslookup access-token.jwt-signature.stack-auth.com
Server:  one.one.one.one
Address:  1.1.1.1

*** one.one.one.one can't find access-token.jwt-signature.stack-auth.com: Non-existent domain
```

One example of why this is a problem is Convex, which allows auth
integration with any service following the OpenID Connect/JWKs standard.
Upon receiving a JWT, Convex will match the `iss` claim to the [custom
auth
config](https://docs.convex.dev/auth/advanced/custom-auth#server-side-integration)
it should use. It then attempts to connect to `iss` in order to validate
the JWT. If I switch the `iss` (in Convex config) to
`api.stack-auth.com`, then the `iss` claim doesn't match and auth fails.
If I leave it at `https://access-token.jwt-signature.stack-auth.com`,
then Convex tries to connect to
`https://access-token.jwt-signature.stack-auth.com` and gets a DNS
lookup fail and can't verify the token.

This may have implications for currently issued JWTs - so porting this
change may have to be done with care.

<!-- ELLIPSIS_HIDDEN -->

----

> [!IMPORTANT]
> Change JWT issuer to `https://api.stack-auth.com` for public
accessibility and validation.
> 
>   - **Behavior**:
> - Change JWT `iss` from
`https://access-token.jwt-signature.stack-auth.com` to
`https://api.stack-auth.com` in `decodeAccessToken()` and
`generateAccessToken()` in `tokens.tsx`.
> - Update test expectation for `iss` in `ensureParsableAccessToken()`
in `backend-helpers.ts`.
>   - **Rationale**:
> - Ensures `iss` is a publicly accessible domain for JWT validation.
>     - Addresses issue #651.
> 
> <sup>This description was created by </sup>[<img alt="Ellipsis"
src="https://img.shields.io/badge/Ellipsis-blue?color=175173">](https://www.ellipsis.dev?ref=stack-auth%2Fstack-auth&utm_source=github&utm_medium=referral)<sup>
for 00393b87ad. You can
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<!-- ELLIPSIS_HIDDEN -->

---------

Co-authored-by: Zai Shi <zaishi00@outlook.com>
2025-05-13 22:06:01 +02:00
..
app Fix Apple OAuth (#669) 2025-05-13 18:38:09 +02:00
lib Change JWT issuer (#656) 2025-05-13 22:06:01 +02:00
oauth Endpoints branching (#659) 2025-04-30 15:39:47 -07:00
route-handlers Endpoints branching (#659) 2025-04-30 15:39:47 -07:00
utils add opentelemetry log function and telemetry for primary_email_auth_enabled usage (#523) 2025-03-10 08:46:36 -07:00
analytics.tsx Fix event capture 2024-08-14 12:49:35 -07:00
globals.d.ts Split backend and dashboard (#83) 2024-06-18 15:49:31 +02:00
instrumentation.ts Attempt CI fix 2025-03-12 16:50:55 -07:00
middleware.tsx Fix Apple OAuth (#669) 2025-05-13 18:38:09 +02:00
polyfills.tsx Fix unhandled promise rejections in rawQuery 2025-04-11 09:59:45 -07:00
prisma-client.tsx Config DB migration step 2 (#629) 2025-04-29 14:52:45 -07:00
smart-router.tsx Move /api/v1 to /api/latest 2025-02-05 17:24:43 -08:00