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Issue #870 Implementation Status

Backend User Entity & Secrets Ownership Model (#608 Phase 1-2)

Completed Components

1. Entity Type Extension

✅ File: autobot-user-backend/knowledge/pipeline/models/entity.py

  • Added "USER" to EntityType literal type
  • Enables user entities in knowledge graph

2. Database Models

✅ File: autobot-user-backend/models/secret.py (NEW)

  • Complete SQLAlchemy model for secrets with ownership

  • Fields:

    • owner_id: User who owns the secret (UUID, indexed)
    • scope: Visibility level (user/session/shared)
    • session_id: For session-scoped secrets (indexed)
    • shared_with: JSONB array of user IDs for shared secrets
    • encrypted_value: Fernet-encrypted secret value
    • type, name, description, tags, expires_at
    • is_active: Soft activation/deactivation
    • metadata: JSONB for additional data
    • Timestamps: created_at, updated_at

  • Methods:

    • is_accessible_by(user_id, session_id): Access control logic
    • share_with(user_id): Add user to shared access list
    • unshare_with(user_id): Remove user from shared access
    • activate() / deactivate(): Manage active status
    • is_expired: Property for expiration checking

3. Database Migration

✅ File: autobot-user-backend/database/migrations/002_create_secrets_table.py (NEW)

  • Alembic migration for secrets table
  • Indices:
    • ix_secrets_owner_id
    • ix_secrets_name
    • ix_secrets_type
    • ix_secrets_scope
    • ix_secrets_session_id
    • Composite: ix_secrets_owner_scope for common queries
  • Full upgrade/downgrade support

4. Unit Tests

✅ File: autobot-user-backend/models/secret_test.py (NEW)

  • 15 test functions covering:
    • Secret creation and properties
    • Expiration logic
    • Access control for all scope types (user/session/shared)
    • Share/unshare operations
    • Database persistence (structure ready, needs DB fixture)

Pending Work

1. Memory Graph Core Module

⚠️ Blocker: autobot_memory_graph.core module is missing

  • Current code references .core import but file doesn't exist
  • Need to either:
    • Create core.py with ENTITY_TYPES, AutoBotMemoryGraphCore
    • OR refactor imports to use existing structure

Affected Files:

  • autobot-user-backend/autobot_memory_graph/__init__.py (line 33)
  • All memory graph mixins (entities.py, secrets.py, etc.)

2. User Entity Operations

📋 Not Started - Blocked by #1

  • Create create_user_entity() in memory graph
  • User entity with user_id, username, metadata
  • Relationships: user -> session, user -> secret

3. API Integration

📋 Not Started

  • Update autobot-user-backend/api/secrets.py:
    • Extract user_id from JWT token
    • Pass owner_id to secret creation
    • Filter secrets by ownership in list/get endpoints
    • Implement share/unshare endpoints

4. Encryption Service

📋 Not Started

  • Integrate with existing encryption_service.py
  • OR implement Fernet encryption in secrets API
  • Key management and rotation

5. Database Session Integration

📋 Not Started

  • Connect to existing user_management database
  • OR set up separate secrets database
  • Implement async session management

6. End-to-End Integration Tests

📋 Not Started

  • Secret creation with user ownership
  • Access control enforcement
  • Session-scoped secret lifecycle
  • Share/unshare workflows

Architecture Notes

Ownership Model

User (from user_management.models.user)
  └─> owns Secret (models.secret)
       ├─> scope: "user" (accessible across all sessions)
       ├─> scope: "session" (only in specific session_id)
       └─> scope: "shared" (accessible to users in shared_with list)

Access Control Rules

  1. Owner: Always has access (any session)
  2. Session-scoped: Requires matching session_id
  3. Shared: User ID must be in shared_with array
  4. User-scoped: Only owner can access

Database Schema

CREATE TABLE secrets (
    id UUID PRIMARY KEY,
    owner_id UUID NOT NULL,  -- FK to users.id
    name VARCHAR(256) NOT NULL,
    type VARCHAR(50) NOT NULL,
    scope VARCHAR(20) NOT NULL DEFAULT 'user',
    session_id VARCHAR(128),
    shared_with JSONB NOT NULL DEFAULT '[]',
    encrypted_value TEXT NOT NULL,
    description VARCHAR(1024),
    tags JSONB NOT NULL DEFAULT '[]',
    expires_at TIMESTAMPTZ,
    is_active BOOLEAN NOT NULL DEFAULT TRUE,
    metadata JSONB NOT NULL DEFAULT '{}',
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX ix_secrets_owner_id ON secrets(owner_id);
CREATE INDEX ix_secrets_scope ON secrets(scope);
CREATE INDEX ix_secrets_session_id ON secrets(session_id);
CREATE INDEX ix_secrets_owner_scope ON secrets(owner_id, scope);

Next Steps (Priority Order)

  1. Fix Memory Graph Core (Blocker)

    • Investigate missing core.py module
    • Either restore or refactor imports

  2. Complete User Entity Operations

    • Add create_user_entity() to memory graph
    • Test user entity CRUD

  3. Integrate Database

    • Run migration 002
    • Connect to PostgreSQL
    • Verify table creation

  4. Update Secrets API

    • Extract user_id from JWT
    • Use Secret model instead of file storage
    • Implement ownership filtering

  5. Add Encryption

    • Integrate Fernet encryption
    • Secure key management

  6. Integration Tests

    • End-to-end secret lifecycle
    • Access control validation

Files Modified/Created

Created

  • autobot-user-backend/models/secret.py (280 lines)
  • autobot-user-backend/models/secret_test.py (370 lines)
  • autobot-user-backend/database/migrations/002_create_secrets_table.py (110 lines)
  • IMPLEMENTATION_STATUS.md (this file)

Modified

  • autobot-user-backend/knowledge/pipeline/models/entity.py (+1 line)
    • Added "USER" to EntityType

Blocked (Need Core Module)

  • User entity operations in memory graph
  • Secret-to-user relationships

Dependencies

  • Existing user_management system (users table)
  • PostgreSQL with JSONB support
  • SQLAlchemy async
  • Fernet encryption (cryptography package)
  • FastAPI JWT authentication

Testing Strategy

Unit Tests (Completed)

  • Secret model properties
  • Access control logic
  • Share/unshare operations
  • Scope validation

Integration Tests (Pending)

  • Database persistence
  • Encryption/decryption
  • API endpoints with authentication
  • Memory graph integration

E2E Tests (Pending)

  • Full secret lifecycle
  • Multi-user sharing
  • Session-scoped cleanup
  • Expiration handling