MCR can now redirect users to MCIAS for login instead of showing its
own login form. This enables passkey/FIDO2 authentication since WebAuthn
credentials are bound to MCIAS's domain.
- Add optional [sso] config section with redirect_uri
- Add handleSSOLogin (redirects to MCIAS) and handleSSOCallback
(exchanges code for JWT, validates roles, sets session cookie)
- SSO is opt-in: when redirect_uri is empty, the existing login form
is used (backward compatible)
- Guest role check preserved in SSO callback path
- Return-to URL preserved across the SSO redirect
- Uses mcdsl/sso package (local replace for now)
Security:
- State cookie uses SameSite=Lax for cross-site redirect compatibility
- Session cookie remains SameSite=Strict (same-site only after login)
- Code exchange is server-to-server over TLS 1.3
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Update mcdsl from v1.0.0 to the port-env-support branch tip, which
adds automatic $PORT environment variable support to the config
package. Adapt grpcserver.New call to the updated signature that now
accepts an *Options parameter (pass nil for default behavior).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- db.Open: delegate to mcdsl/db.Open
- db.Migrate: rewrite migrations as mcdsl/db.Migration SQL strings,
delegate to mcdsl/db.Migrate; keep SchemaVersion via mcdsl
- auth: thin shim wrapping mcdsl/auth.Authenticator, keeps Claims
type (with Subject, AccountType, Roles) for policy engine compat;
delete cache.go (handled by mcdsl/auth); add ErrForbidden
- config: embed mcdsl/config.Base for standard sections (Server with
Duration fields, Database, MCIAS, Log); keep StorageConfig and
WebConfig as MCR-specific; use mcdsl/config.Load[T] + Validator
- WriteTimeout now defaults to 30s (mcdsl default, was 0)
- All existing tests pass (auth tests rewritten for new shim API,
cache expiry test removed — caching tested in mcdsl)
- Net -464 lines
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Proto definitions for 4 services (RegistryService, PolicyService,
AuditService, AdminService) with hand-written Go stubs using JSON
codec until protobuf tooling is available.
Interceptor chain: logging (method, peer IP, duration, never logs
auth metadata) → auth (bearer token via MCIAS, Health bypasses) →
admin (role check for GC, policy, delete, audit RPCs).
All RPCs share business logic with REST handlers via internal/db
and internal/gc packages. TLS 1.3 minimum on gRPC listener.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Phase 2 — internal/storage/:
Content-addressed blob storage with atomic writes via rename.
BlobWriter stages data in uploads dir with running SHA-256 hash,
commits by verifying digest then renaming to layers/sha256/<prefix>/<hex>.
Reader provides Open, Stat, Delete, Exists with digest validation.
Phase 3 — internal/auth/ + internal/server/:
MCIAS client with Login and ValidateToken, 30s SHA-256-keyed cache
with lazy eviction and injectable clock for testing. TLS 1.3 minimum
with optional custom CA cert.
Chi router with RequireAuth middleware (Bearer token extraction,
WWW-Authenticate header, OCI error format), token endpoint (Basic
auth → bearer exchange via MCIAS), and /v2/ version check handler.
52 tests passing (14 storage + 9 auth + 9 server + 20 existing).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
