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.
Hardcoding the three exact strings localhost / 127.0.0.1 / ::1 rejected
legitimate loopback redirects like 127.0.0.2:1234 (anywhere in 127.0.0.0/8)
or [0:0:0:0:0:0:0:1]:1234 (expanded IPv6 loopback). Use net.IP.IsLoopback()
to cover the full loopback ranges, and match "localhost" case-insensitively.
0.0.0.0 stays rejected as it is not a loopback address.
https://claude.ai/code/session_01LsTDrCJ7trE6WQ4FYf78UB
Previously the OAuth server rejected every redirect_uri that did not start
with a vikunja- custom scheme. Native apps that cannot register a custom
scheme (e.g. CLIs, desktop tools) need loopback redirects per RFC 8252, so
also allow http://localhost, http://127.0.0.1 and http://[::1] (any port).
Non-loopback http:// and https:// targets remain rejected.
https://claude.ai/code/session_01LsTDrCJ7trE6WQ4FYf78UB
Add web tests covering the authorize endpoint, token exchange, PKCE
verification, single-use codes, and refresh token rotation. Add unit
tests for redirect URI validation and PKCE. Add E2E test for the full
browser-based authorization code flow with login redirect.
Extract setupApiUrl helper for E2E tests to avoid duplication.
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.
Add POST /api/v1/oauth/authorize behind auth middleware. Validates
OAuth parameters (response_type, redirect_uri, PKCE), fetches the
authenticated user, creates an authorization code, and returns it
as JSON for the frontend to handle the redirect.
Add redirect URI validation that allowlists vikunja-* custom protocol
schemes, rejecting http/https and dangerous schemes like javascript:.
Add PKCE S256 verification following RFC 7636.