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9daa94b860
- Move all 31 Java files from org/prole/authority to dev/knoe/authority - Update all package declarations, imports, pom.xml groupId, and docs - Add 11 new test classes (PrincipalNormalizerTest, OidcCodeServiceTest, KadminClientTest, TotpServiceTest, HealthControllerTest, EnrollValueTypesTest, KerberosSpnegoResultTest, SessionServiceTest, EnrollmentControllerTest, AdminControllerTest, LoginControllerTest) - Add JaCoCo 0.8.12 + maven-surefire-plugin with Java 25 / Byte Buddy compat flags - Fix LoginController CSS format string bug (100% -> 100%%) - Result: 96 tests, 0 failures; 50.2% line / 46.5% instruction / 37.1% branch coverage Co-authored-by: Junie <junie@jetbrains.com>
74 lines
2.8 KiB
Markdown
74 lines
2.8 KiB
Markdown
# Phase 2: knoe-auth as OIDC Provider
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## Architecture
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knoe-auth (the Authority) acts as the central Identity Authority for the cluster.
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### OIDC Provider (OP)
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- Issuer: `https://api.knoe.dev/auth`
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- Endpoints:
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- `GET /.well-known/openid-configuration`: Discovery
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- `GET /jwks.json`: Public keys for token verification
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- `GET /authorize`: Authorization endpoint (supports `response_type=code`)
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- `POST /token`: Token exchange endpoint
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### Upstream Identity (Google Workspace)
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- knoe-auth acts as an OAuth client to Google.
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- User flow: Service → knoe-auth → Google → knoe-auth → Service.
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- Identity is mapped from Google `email` to internal `canonical user id`.
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### Kerberos/SPNEGO Integration
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- knoe-auth preserves Kerberos flows.
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- If a user has a valid SPNEGO session, they can be transparently logged into the OIDC flow.
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- Form login (Kerberos password) is available as a fallback.
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## Identity Model
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- **Canonical User ID**: Lowercase, stable identifier (e.g., `jdoe`).
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- **Email**: User's Google Workspace email (e.g., `jdoe@knoey.com`).
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- **Principal**: Kerberos principal (e.g., `jdoe@KNOE.DEV`).
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- **Normalization**: `PrincipalNormalizer` ensures consistency across all auth methods.
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## Namespace & Domains
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- **Java Package**: `dev.knoe.authority.*`
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- **Service DNS**: `knoe.dev` (e.g., `api.knoe.dev`, `git.knoe.dev`)
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- **OIDC Issuer**: `https://api.knoe.dev/auth`
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- **Identity Domain**: `knoey.com`
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- **Kerberos Realm**: `KNOE.DEV`
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## Token Model
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### ID Token (JWT)
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- Signed using RS256.
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- Claims:
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- `iss`: `https://api.knoe.dev/auth`
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- `sub`: Canonical user ID
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- `email`: User's email
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- `preferred_username`: Canonical user ID
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- `aud`: Client ID
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- `exp`, `iat`, `nonce`
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### Access Token
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- Currently minimal (opaque or static) as the primary focus is identity (OIDC).
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## Session Model
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- Stateless where possible.
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- Short-lived browser session via secure, HttpOnly, SameSite=Lax cookies.
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- Authorization codes are short-lived and one-time use.
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## Implementation Details
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- Stack: Java / Spring Boot (Lightweight).
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- Signing: RS256 with key rotation support (via multiple keys in JWKS).
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- Configurable via `application.yml` and environment variables.
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## Deployment & Configuration
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- `KNOE_AUTH_OIDC_ENABLED`: Enable OIDC surface.
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- `KNOE_AUTH_OIDC_ISSUER`: Issuer URL.
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- `KNOE_AUTH_OIDC_SIGNING_KEY`: Base64 encoded private key (PKCS#8).
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- `KNOE_AUTH_GOOGLE_CLIENT_ID`: Upstream Google client ID.
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- `KNOE_AUTH_GOOGLE_CLIENT_SECRET`: Upstream Google client secret.
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## GitLab Integration (Path B)
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To switch GitLab to use knoe-auth as OIDC provider:
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1. Update GitLab `omniauth` configuration.
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2. Change `issuer` to `https://api.knoe.dev/auth`.
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3. Update `client_id` and `client_secret` to match knoe-auth config.
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4. Verify flow: GitLab → knoe-auth → Google → knoe-auth → GitLab.
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