🔐 Security & Authentication System Implementation #7
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- Multi-factor authentication (MFA) with TOTP and backup codes - OAuth2 integration (Google, GitHub, Microsoft) - SAML 2.0 enterprise SSO support - Role-based access control (RBAC) with granular permissions - HashiCorp Vault integration for secret management - Comprehensive audit logging with compliance reporting - JWT token management with refresh tokens - API key management with scopes and rotation - Security middleware with rate limiting and threat detection - React frontend components for authentication - Docker deployment with monitoring stack - Vulnerability scanning and security policies - SOC2, GDPR, PCI DSS, HIPAA compliance support Features: ✅ Local authentication with secure password policies ✅ Account lockout and progressive security measures ✅ Session management with device tracking ✅ Context-aware permission evaluation ✅ Automatic secret rotation capabilities ✅ Real-time security event monitoring ✅ Compliance reporting and audit trails ✅ Enterprise-grade deployment configuration
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Reviewer's GuideThis PR introduces a complete security and authentication subsystem under security-system/, integrating audit logging, secret management, authentication providers (local, OAuth2, SAML), token and API-key services, FastAPI middleware with RBAC enforcement, React frontend components, and full deployment artifacts. Sequence Diagram for User Local Login with MFAsequenceDiagram
actor User
participant LoginForm as FE_LoginForm
participant AuthService as FE_AuthService
participant BackendAPI as BE_API
participant LocalAuthP as BE_LocalAuthProvider
participant MFAP as BE_MFAProvider
participant TokenSvc as BE_TokenService
participant AuditLogSvc as BE_AuditLogger
User->>FE_LoginForm: Submits email & password
FE_LoginForm->>FE_AuthService: login(email, password)
FE_AuthService->>BE_API: POST /auth/login (email, password)
BE_API->>BE_LocalAuthProvider: authenticate_user(email, password)
BE_LocalAuthProvider-->>BE_API: User object (if valid, MFA enabled)
BE_API->>BE_AuditLogger: log_authentication_event(LOGIN_ATTEMPT)
alt MFA Required
BE_API-->>FE_AuthService: { mfaRequired: true, mfaToken: "..." }
FE_AuthService-->>FE_LoginForm: Update UI for MFA
User->>FE_LoginForm: Submits MFA code
FE_LoginForm->>FE_AuthService: verifyMFA(mfaToken, mfaCode)
FE_AuthService->>BE_API: POST /auth/mfa/verify (mfaToken, mfaCode)
BE_API->>BE_MFAProvider: verify_mfa(user, mfaCode)
BE_MFAProvider-->>BE_API: MFA valid
BE_API->>BE_TokenService: generate_access_token(user)
BE_TokenService-->>BE_API: accessToken
BE_API->>BE_TokenService: generate_refresh_token(user)
BE_TokenService-->>BE_API: refreshToken
BE_API->>BE_AuditLogger: log_authentication_event(LOGIN_SUCCESS_MFA)
BE_API-->>FE_AuthService: { user, accessToken, refreshToken }
else Credentials Invalid / MFA not set up (but password valid)
BE_API->>BE_TokenService: generate_access_token(user) "(if no MFA)"
BE_TokenService-->>BE_API: accessToken "(if no MFA)"
BE_API->>BE_TokenService: generate_refresh_token(user) "(if no MFA)"
BE_TokenService-->>BE_API: refreshToken "(if no MFA)"
BE_API->>BE_AuditLogger: log_authentication_event(LOGIN_SUCCESS / LOGIN_FAILURE)
BE_API-->>FE_AuthService: { user, accessToken, refreshToken } or { error }
end
FE_AuthService-->>FE_LoginForm: LoginResponse / Error
FE_LoginForm->>User: Shows success / error message
Sequence Diagram for API Request Authentication via MiddlewaresequenceDiagram
participant Client
participant AuthMiddleware as BE_AuthMiddleware
participant TokenSvc as BE_TokenService
participant PermissionEval as BE_PermissionEvaluator
participant DB as Database
participant APIEndpoint as BE_APIEndpoint
participant AuditLogSvc as BE_AuditLogger
Client->>AuthMiddleware: API Request (e.g., GET /data)
AuthMiddleware->>AuthMiddleware: _authenticate_request()
alt API Key Auth
AuthMiddleware->>DB: Find APIKey by hashed key
DB-->>AuthMiddleware: APIKey object (if found)
AuthMiddleware->>DB: Get User from APIKey.user_id
DB-->>AuthMiddleware: User object
Note over AuthMiddleware: Set request.state.user, .api_key
else JWT Auth
AuthMiddleware->>TokenSvc: verify_access_token(jwt_from_header)
TokenSvc-->>AuthMiddleware: Decoded payload (if valid)
AuthMiddleware->>DB: Get User from payload.sub
DB-->>AuthMiddleware: User object
Note over AuthMiddleware: Set request.state.user, .mfa_verified
else No/Invalid Auth
AuthMiddleware-->>Client: 401 Unauthorized Response
AuthMiddleware->>AuditLogSvc: log_authentication_event(AUTH_FAILURE)
end
alt Auth Successful
AuthMiddleware->>PermissionEval: _check_permissions(request, user)
PermissionEval->>DB: Load user roles/permissions
DB-->>PermissionEval: Roles/Permissions data
PermissionEval-->>AuthMiddleware: Permission granted/denied
alt Permission Denied
AuthMiddleware-->>Client: 403 Forbidden Response
AuthMiddleware->>AuditLogSvc: log_authorization_event(PERMISSION_DENIED)
else Permission Granted
AuthMiddleware->>APIEndpoint: call_next(request)
APIEndpoint->>APIEndpoint: Process request
APIEndpoint-->>AuthMiddleware: Response
AuthMiddleware->>AuthMiddleware: Add security headers
AuthMiddleware-->>Client: API Response
AuthMiddleware->>AuditLogSvc: log_resource_access(...)
end
end
Entity Relationship Diagram for Security System ModelserDiagram
User {
UUID id PK
string email
string password_hash
boolean mfa_enabled
string mfa_secret
list_str backup_codes
datetime last_login
integer failed_login_attempts
datetime locked_until
boolean is_active
boolean is_verified
list_Role roles
list_UserSession sessions
list_APIKeyModel api_keys
list_AuditLog audit_logs
}
Role {
UUID id PK
string name
string description
list_Permission permissions
}
Permission {
UUID id PK
string name
string description
}
UserSession {
UUID id PK
UUID user_id FK
string session_token
datetime expires_at
datetime last_activity
string ip_address
string user_agent
boolean is_mfa_verified
boolean is_active
}
APIKeyModel {
UUID id PK
UUID user_id FK
string key_hash
string key_prefix
list_str scopes
datetime expires_at
datetime last_used
integer usage_count
boolean is_active
}
AuditLog {
UUID id PK
string event_id
string event_type
string severity
datetime timestamp
UUID user_id FK "Nullable"
string session_id "Nullable"
string ip_address "Nullable"
string user_agent "Nullable"
string resource_type "Nullable"
string resource_id "Nullable"
string action "Nullable"
string outcome
string message
json details "Nullable"
string correlation_id "Nullable"
list_str compliance_tags "Nullable"
}
User ||--o{ UserSession : "has"
User ||--o{ APIKeyModel : "has"
User ||--o{ AuditLog : "generates"
User }o--o{ Role : "has (many-to-many)"
Role }o--o{ Permission : "has (many-to-many)"
Class Diagram for Audit Logging SystemclassDiagram
class AuditEventType {
<<Enumeration>>
LOGIN_SUCCESS
LOGIN_FAILURE
PERMISSION_DENIED
RESOURCE_READ
# ... other event types
}
class AuditSeverity {
<<Enumeration>>
LOW
MEDIUM
HIGH
CRITICAL
}
class AuditEvent {
<<Dataclass>>
string event_id
AuditEventType event_type
AuditSeverity severity
datetime timestamp
string user_id
string outcome
string message
dict details
}
class AuditLogger {
db_session_factory
bool enable_async
ThreadPoolExecutor executor
Queue event_queue
log_event(event_type, message, severity, user_id, outcome, details)
log_authentication_event(event_type, user_id, ip_address, outcome)
log_authorization_event(user_id, resource_type, action, outcome)
log_resource_access(user_id, resource_type, action, outcome)
search_events(start_time, end_time, event_types)
_process_events_async()
_flush_batch(events)
_write_event_sync(event)
}
AuditLogger ..> AuditEvent : uses
AuditLogger ..> AuditEventType : uses
AuditLogger ..> AuditSeverity : uses
AuditLogger ..> AuditLog : writes
Class Diagram for Vault Client (Secret Management)classDiagram
class VaultAuthMethod {
<<Enumeration>>
TOKEN
USERPASS
APPROLE
AWS_IAM
KUBERNETES
LDAP
}
class SecretMetadata {
<<Dataclass>>
string path
int version
datetime created_time
}
class VaultClient {
hvac.Client client
string url
VaultAuthMethod auth_method
dict auth_config
_authenticate()
read_secret(path, version) Optional~dict~
write_secret(path, secret_data) bool
delete_secret(path, versions) bool
list_secrets(path) Optional~list~
get_secret_metadata(path) Optional~SecretMetadata~
create_database_credentials(db_role) Optional~dict~
encrypt_data(plaintext, key_name) Optional~str~
decrypt_data(ciphertext, key_name) Optional~str~
}
VaultClient ..> VaultAuthMethod : uses
VaultClient ..> SecretMetadata : uses
Class Diagram for Token and Key Rotation ServicesclassDiagram
class TokenService {
string secret_key
string algorithm
string private_key "Nullable (for RS256)"
string public_key "Nullable (for RS256)"
int access_token_expire_minutes
int refresh_token_expire_days
generate_access_token(user_id, email, roles, permissions) string
generate_refresh_token(user_id, session_id) string
verify_access_token(token) Optional~dict~
verify_refresh_token(token) Optional~dict~
refresh_access_token(refresh_token, user_data) Optional~tuple~
generate_api_key(prefix) tuple~str,str,str~
hash_api_key(api_key) string
verify_api_key(api_key, stored_hash) bool
_encode_token(payload) string
_decode_token(token) dict
}
class KeyRotationService {
TokenService token_service
list key_history
generate_new_rsa_keypair() tuple~str,str~
rotate_keys() tuple~str,str~
verify_token_with_history(token) Optional~dict~
cleanup_old_keys(max_age_days)
}
KeyRotationService o-- TokenService : uses
Class Diagram for Authentication MiddlewareclassDiagram
class AuthenticationMiddleware {
db_session_factory
TokenService token_service
SessionService session_service
PermissionEvaluator permission_evaluator
list excluded_paths
dispatch(request, call_next) Response
_authenticate_request(request, db_session) dict
_authenticate_api_key(request, db_session) dict
_authenticate_jwt(request, db_session) dict
_authenticate_session(request, db_session) dict
_check_permissions(request, user, db_session) bool
}
class RequireAuth {
bool require_mfa
list required_permissions
__call__(request) User
}
AuthenticationMiddleware o-- TokenService : uses
AuthenticationMiddleware o-- SessionService : uses "(Conceptual)"
AuthenticationMiddleware o-- PermissionEvaluator : uses "(Conceptual)"
Class Diagram for Local Authentication and MFA ProvidersclassDiagram
class PasswordPolicy {
int min_length
bool require_uppercase
validate_password(password, user_info) tuple~bool,list~
}
class AccountLockoutPolicy {
int max_attempts
int lockout_duration_minutes
calculate_lockout_duration(attempt_count) timedelta
}
class LocalAuthProvider {
PasswordPolicy password_policy
AccountLockoutPolicy lockout_policy
int bcrypt_rounds
hash_password(password) string
verify_password(password, hashed_password) bool
authenticate_user(email, password, user_model, db_session) tuple~bool,User,str~
handle_failed_login(user)
handle_successful_login(user)
}
class MFAProvider {
string issuer_name
generate_secret() string
generate_qr_code(secret, user_email) bytes
verify_totp(secret, token, window) bool
generate_backup_codes(count) list~str~
verify_backup_code(code, hashed_codes) tuple~bool,str~
setup_mfa(user, db_session) tuple~str,list,bytes~
verify_mfa(user, token) tuple~bool,str~
}
LocalAuthProvider o-- PasswordPolicy : uses
LocalAuthProvider o-- AccountLockoutPolicy : uses
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🎯 Feature Implementation
This PR implements a comprehensive security and authentication system that provides secure access control, API authentication, secret management, and audit logging for the entire AI workflow platform.
🚀 Key Features Implemented
🔐 Authentication & Authorization
🔒 Secret Management
📊 Security & Compliance
🛡️ Security Features
🎨 Frontend Components
📁 Implementation Structure
🔧 Technical Implementation
Database Models
Authentication Providers
Security Services
🚀 Deployment Ready
Docker Configuration
Monitoring & Observability
🛡️ Security Measures
Password Policy
Account Protection
API Security
📋 Compliance Features
Audit Events
Compliance Mappings
🧪 Testing & Quality
📚 Documentation
🔗 Integration Points
This security system integrates seamlessly with:
✅ Ready for Production
This implementation provides enterprise-grade security features that are:
The security system is now ready to protect the entire AI workflow platform with comprehensive authentication, authorization, and audit capabilities.
Files Modified:
security-system/- Complete security system implementationrequirements.txt- Python dependenciesdocker-compose.yml- Full deployment stackDockerfile- Production-ready containerREADME.md- Comprehensive documentation💻 View my work • About Codegen
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Summary by Sourcery
Implement a comprehensive security and authentication subsystem for the AI workflow platform, including authentication flows, authorization controls, secret management, audit logging, and deployment orchestration.
New Features:
Build:
Documentation: