The new v2 OAuth token endpoint mints a fresh session without going
through NewUserAuthTokenResponse, so those logins were missing from the
audit trail. The refresh grant stays unaudited like the v1 refresh.
Pull the HTTP-independent core out of the v1 auth handlers so both
/api/v1 and the upcoming /api/v2 routes share one implementation:
- oauth2server: ExchangeToken and Authorize take plain inputs and return
typed responses; HandleToken/HandleAuthorize keep binding + headers.
- pkg/routes/api/shared: AuthenticateLinkShare, RegisterUser,
ResetPassword (+ session clear), RequestPasswordResetToken and
ConfirmEmail, plus the shared UserRegister and LinkShareToken types.
v1 handlers now delegate to these; their wire output is unchanged.
Add POST /api/v1/oauth/token supporting authorization_code and
refresh_token grant types. Validates PKCE, exchanges codes for
JWT access tokens with refresh token rotation. Uses the shared
RefreshSession helper for the refresh grant.
Tink
kolaente