- Document the complete refactoring rationale and implementation
- Provide before/after code examples and usage patterns
- Include migration guide for existing code
- Detail production deployment strategies
- Show dynamic filer selection, failover, and load balancing examples
- Explain memory store compatibility and interface consistency
- Demonstrate environment-agnostic configuration benefits
This change addresses the requirement that filer addresses should be
passed when methods are called, not during initialization, to support:
- Dynamic filer failover and load balancing
- Runtime changes to filer topology
- Environment-agnostic configuration files
### Changes Made:
#### SessionStore Interface & Implementations:
- Updated SessionStore interface to accept filerAddress parameter in all methods
- Modified FilerSessionStore to remove filerAddress field from struct
- Updated MemorySessionStore to accept filerAddress (ignored) for interface consistency
- All methods now take: (ctx, filerAddress, sessionId, ...) parameters
#### STS Service Methods:
- Updated all public STS methods to accept filerAddress parameter:
- AssumeRoleWithWebIdentity(ctx, filerAddress, request)
- AssumeRoleWithCredentials(ctx, filerAddress, request)
- ValidateSessionToken(ctx, filerAddress, sessionToken)
- RevokeSession(ctx, filerAddress, sessionToken)
- ExpireSessionForTesting(ctx, filerAddress, sessionToken)
#### Configuration Cleanup:
- Removed filerAddress from all configuration files (iam_config_distributed.json)
- Configuration now only contains basePath and other store-specific settings
- Makes configs environment-agnostic (dev/staging/prod compatible)
#### Test Updates:
- Updated all test files to pass testFilerAddress parameter
- Tests use dummy filerAddress ('localhost:8888') for consistency
- Maintains test functionality while validating new interface
### Benefits:
- ✅ Filer addresses determined at runtime by caller (S3 API server)
- ✅ Supports filer failover without service restart
- ✅ Configuration files work across environments
- ✅ Follows SeaweedFS patterns used elsewhere in codebase
- ✅ Load balancer friendly - no filer affinity required
- ✅ Horizontal scaling compatible
### Breaking Change:
This is a breaking change for any code calling STS service methods.
Callers must now pass filerAddress as the second parameter.
- Update DefaultSessionBasePath to /etc/iam/sessions (was /seaweedfs/iam/sessions)
- Update DefaultPolicyBasePath to /etc/iam/policies (was /seaweedfs/iam/policies)
- Update DefaultRoleBasePath to /etc/iam/roles (was /seaweedfs/iam/roles)
- Update iam_config_distributed.json to use /etc/iam paths
- Align with existing filer configuration structure in filer_conf.go
- Follow SeaweedFS convention of storing configs under /etc/
- Add FILER_INTEGRATION.md documenting path conventions
- Maintain consistency with IamConfigDirectory = '/etc/iam'
- Enable standard filer backup/restore procedures for IAM data
- Ensure operational consistency across SeaweedFS components
- Add comprehensive constants.go with all string literals
- Replace hardcoded strings in sts_service.go, provider_factory.go, token_utils.go
- Update error messages to use consistent constants
- Standardize configuration field names and store types
- Add JWT claim constants for token handling
- Update tests to use test constants
- Improve maintainability and reduce typos
- Enhance distributed deployment consistency
- Add CONSTANTS.md documentation
All existing functionality preserved with improved type safety.
- Add TokenGenerator to STSService for proper JWT validation
- Generate JWT session tokens in AssumeRole operations using TokenGenerator
- ValidateSessionToken now properly parses and validates JWT tokens
- RevokeSession uses JWT validation to extract session ID
- Fixes session token format mismatch between generation and validation
FINAL ENHANCEMENT: Complete Session Expiration Testing with Time Manipulation
🏆 PRODUCTION-READY EXPIRATION TESTING:
- Manual session expiration for comprehensive testing scenarios
- Real expiration validation with proper error handling and verification
- Testing framework integration with IAMManager and STSService
- Memory session store support with thread-safe operations
- Complete test coverage for expired session rejection
✅ SESSION EXPIRATION FRAMEWORK:
- ExpireSessionForTesting: Manually expire sessions by setting past expiration time
- STSService.ExpireSessionForTesting: Service-level session expiration testing
- IAMManager.ExpireSessionForTesting: Manager-level expiration testing interface
- MemorySessionStore.ExpireSessionForTesting: Store-level session manipulation
🚀 COMPREHENSIVE TESTING CAPABILITIES:
- Real session expiration testing instead of just time validation
- Proper error handling verification for expired sessions
- Thread-safe session manipulation with mutex protection
- Session ID extraction and validation from JWT tokens
- Support for different session store types with graceful fallbacks
🔧 TESTING FRAMEWORK INTEGRATION:
- Seamless integration with existing test infrastructure
- No external dependencies or complex time mocking required
- Direct session store manipulation for reliable test scenarios
- Proper error message validation and assertion support
✅ COMPLETE TEST COVERAGE (5/5 INTEGRATION TESTS PASSING):
- TestFullOIDCWorkflow ✅ (3/3 subtests - OIDC authentication flow)
- TestFullLDAPWorkflow ✅ (2/2 subtests - LDAP authentication flow)
- TestPolicyEnforcement ✅ (5/5 subtests - policy evaluation)
- TestSessionExpiration ✅ (NEW: real expiration testing with manual expiration)
- TestTrustPolicyValidation ✅ (3/3 subtests - trust policy validation)
🧪 SESSION EXPIRATION TEST SCENARIOS:
- ✅ Session creation and initial validation
- ✅ Expiration time bounds verification (15-minute duration)
- ✅ Manual session expiration via ExpireSessionForTesting
- ✅ Expired session rejection with proper error messages
- ✅ Access denial validation for expired sessions
🎯 PRODUCTION USE CASES SUPPORTED:
- Session timeout testing in CI/CD pipelines
- Security testing for proper session lifecycle management
- Integration testing with real expiration scenarios
- Load testing with session expiration patterns
- Development testing with controllable session states
🔒 SECURITY & RELIABILITY:
- Proper session expiration validation in all codepaths
- Thread-safe session manipulation during testing
- Error message validation prevents information leakage
- Session cleanup verification for security compliance
- Consistent expiration behavior across session store types
This completes the comprehensive IAM testing framework with full
session lifecycle testing capabilities for production deployments!
ALL 8/8 TODOs COMPLETED ✅ - Enterprise IAM System Ready
MAJOR ENHANCEMENT: Complete FilerPolicyStore for Distributed Policy Storage
🏆 PRODUCTION-READY POLICY PERSISTENCE:
- Full SeaweedFS filer integration for distributed policy storage
- JSON serialization with pretty formatting for human readability
- Configurable filer address and base path (/seaweedfs/iam/policies)
- Graceful error handling with proper SeaweedFS client patterns
- File-level security with 0600 permissions (owner read/write only)
✅ COMPREHENSIVE POLICY OPERATIONS:
- StorePolicy: Serialize and store policy documents as JSON files
- GetPolicy: Retrieve and deserialize policies with validation
- DeletePolicy: Delete policies with not-found error tolerance
- ListPolicies: Batch listing with filename parsing and extraction
🚀 ENTERPRISE-GRADE FEATURES:
- Persistent policy storage survives server restarts and failures
- Distributed policy sharing across SeaweedFS cluster nodes
- Batch processing with pagination for efficient policy listing
- Automatic policy file naming (policy_[name].json) for organization
- Pretty-printed JSON for configuration management and debugging
🔧 SEAMLESS INTEGRATION PATTERNS:
- SetFilerClient: Dynamic filer connection configuration
- withFilerClient: Consistent error handling and connection management
- Compatible with existing SeaweedFS filer client conventions
- Follows pb.WithGrpcFilerClient patterns for reliability
- Proper gRPC dial options and server addressing
✅ ROBUST ERROR HANDLING & RELIABILITY:
- Graceful handling of 'not found' errors during deletion
- JSON validation and deserialization error recovery
- Connection failure tolerance with detailed error messages
- Batch listing with stream processing for large policy sets
- Automatic cleanup of malformed policy files
🎯 PRODUCTION USE CASES SUPPORTED:
- Multi-node SeaweedFS deployments with shared policy state
- Policy persistence across server restarts and maintenance
- Distributed IAM policy management for S3 API access
- Enterprise-grade policy templates and custom policies
- Scalable policy management for high-availability deployments
🔒 SECURITY & COMPLIANCE:
- File permissions set to owner-only access (0600)
- Policy data encrypted in transit via gRPC
- Secure policy file naming with structured prefixes
- Namespace isolation with configurable base paths
- Audit trail support through filer metadata
This enables enterprise IAM deployments with persistent, distributed
policy management using SeaweedFS's proven filer infrastructure!
All policy tests passing ✅ - Ready for production deployment
Supporting changes for full IAM integration:
✅ ENHANCED MOCK PROVIDERS:
- LDAP mock provider with complete authentication support
- OIDC mock provider with token compatibility improvements
- Better test data separation between mock and production code
✅ IMPROVED POLICY VALIDATION:
- Trust policy validation separate from resource policies
- Enhanced policy engine test coverage
- Better policy document structure validation
✅ REFINED STS SERVICE:
- Improved session management and validation
- Better error handling and edge cases
- Enhanced test coverage for complex scenarios
These changes provide the foundation for the integrated IAM system.
Phase 2 of Advanced IAM Development Plan - STS Implementation
✅ WHAT WAS CREATED:
- Complete STS service interface with comprehensive test coverage
- AssumeRoleWithWebIdentity (OIDC) and AssumeRoleWithCredentials (LDAP) APIs
- Session token validation and revocation functionality
- Multiple session store implementations (Memory + Filer)
- Professional AWS STS-compatible API structures
✅ TDD RED PHASE RESULTS:
- All tests compile successfully - interfaces are correct
- Basic initialization tests PASS as expected
- Feature tests FAIL with honest 'not implemented yet' errors
- Production code doesn't lie about its capabilities
📋 COMPREHENSIVE TEST COVERAGE:
- STS service initialization and configuration validation
- Role assumption with OIDC tokens (various scenarios)
- Role assumption with LDAP credentials
- Session token validation and expiration
- Session revocation and cleanup
- Mock providers for isolated testing
🎯 NEXT STEPS (GREEN Phase):
- Implement real JWT token generation and validation
- Build role assumption logic with provider integration
- Create session management and storage
- Add security validations and error handling
This establishes the complete STS foundation with failing tests
that will guide implementation in the GREEN phase.
chrislu