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feat(oidc): add oidc method in OXICLOUD_AUTH_METHODS

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permit an admin to specify `oidc` only as the only method to login/register
note that if OIDC is enabled, the engine always append oidc in OXICLOUD_AUTH_METHODS
we could move to an explicit declaration in a major release
This commit is contained in:
Edouard Vanbelle
2026-08-03 00:11:49 +02:00
parent 02db85c040
commit b91f2fab2b
6 changed files with 144 additions and 60 deletions
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docs/config/env.md
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@@ -46,7 +46,7 @@ Most runtime variables use the `OXICLOUD_` prefix. A few build-time or allocator
| `OXICLOUD_HASH_PARALLELISM` | `2` | Argon2id parallelism lanes |
| `OXICLOUD_DISABLE_REGISTRATION` | false | Disable registration of new user accounts |
| `OXICLOUD_REGISTRATION_ALLOWED_EMAIL_DOMAINS` | — | Comma-separated allowlist of email domains accepted on `POST /api/auth/register` (case-insensitive, exact match on the post-`@` part). Empty = any domain is allowed. **Distinct from `OXICLOUD_EXTERNAL_EMAIL_DOMAINS`**: this one gates SELF-registration (public sign-up), the external list gates INVITATIONS (grants + magic-link to third parties). An operator can lock sign-up to their company domain while leaving invitations open. Subdomains must be listed explicitly. Rejected registrations return 403 `RegistrationDomainNotAllowed` and emit an `audit` line. Example: `mycompany.com,mycompany-eu.com`. |
| `OXICLOUD_AUTH_METHODS` | `password,magic_link` | Comma-separated allowlist of self-service auth methods (`password`, `magic_link`). OIDC is orthogonal (see `OXICLOUD_OIDC_ENABLED`). Removing `password` disables `POST /api/auth/login` (returns 403 `PasswordLoginDisabled`) and password-based `register` (returns 403 `PasswordRegistrationDisabled`). Removing `magic_link` disables `POST /api/auth/magic-link/send` (returns 403 `MagicLinkLoginDisabled`) and the redemption path for login-purpose tokens. **Startup gate**: if `magic_link` is the only method allowed AND no SMTP transport is configured (`OXICLOUD_SMTP_HOST` empty), the server refuses to start. **OIDC master rule**: when `OXICLOUD_OIDC_ENABLED=true`, magic-link login is hard-disabled regardless of this list (would otherwise bypass IdP-enforced MFA / step-up). Legacy alias: `OXICLOUD_OIDC_DISABLE_PASSWORD_LOGIN=true` still removes `password` from the list. |
| `OXICLOUD_AUTH_METHODS` | `password,magic_link` | Comma-separated allowlist of auth methods (`password`, `magic_link`, `oidc`). **Fail-fast**: unknown token → boot panic; empty allowlist → boot panic; `oidc` in list without `OXICLOUD_OIDC_ENABLED=true` → boot panic. Removing `password` disables `POST /api/auth/login` (returns 403 `PasswordLoginDisabled`) and password-based `register` (returns 403 `PasswordRegistrationDisabled`). Removing `magic_link` disables `POST /api/auth/magic-link/send` (returns 403 `MagicLinkLoginDisabled`) and the redemption path for login-purpose tokens. Setting `OXICLOUD_AUTH_METHODS=oidc` is the cleanest "SSO-only" posture. **Loose semantic (deprecation warning)**: if this list is explicitly set WITHOUT `oidc` but `OXICLOUD_OIDC_ENABLED=true`, OIDC is served regardless — a boot warning is emitted and this will become a fail-fast panic in the next major release. **Startup gate**: if `magic_link` is the only working method (no `password`, no `oidc`) AND no SMTP transport is configured (`OXICLOUD_SMTP_HOST` empty), the server refuses to start. **OIDC master rule**: when OIDC is enabled, magic-link login is hard-disabled regardless of this list (would otherwise bypass IdP-enforced MFA / step-up). Legacy alias: `OXICLOUD_OIDC_DISABLE_PASSWORD_LOGIN=true` still removes `password` from the list. |
| `OXICLOUD_AUTH_POLICIES` | — | Comma-separated additive policy switches. Each token grants an exception or restriction to the default auth behaviour; empty (unset) = pure defaults. Recognised tokens: `permit_magic_link_for_password_users` (allow magic-link login for accounts that also have a password — off by default because magic-link would weaken the password to mailbox-strength; OIDC-linked users are still refused regardless). |
| `OXICLOUD_REQUIRE_VERIFIED_EMAIL` | `false` | When `true`, `POST /api/auth/login` returns 403 `EmailNotVerified` for any account whose `email_verified_at` is NULL. Users can prove control by requesting a magic-link (whose redemption stamps `email_verified_at`), so this composes with `magic_link` in `OXICLOUD_AUTH_METHODS` to give users a self-service verification path. Admin-created (`POST /api/admin/users`) and setup-admin (`POST /api/setup`) users are auto-verified. OIDC-JIT users are also stamped verified at creation. |