Engagement members on `/api/v1/engagements/<eid>/members`:
- `GET` lists members (flat array, ordered by `added_at`). Permission
`ENGAGEMENT_READ`.
- `POST` adds a member. Permission `ENGAGEMENT_MEMBER_MANAGE`. Body
`{user_id, role?}`; `role` defaults to `"member"` (D-017). Returns 201
with `EngagementMemberRead`, 404 if the user is disabled/unknown, or
`409 already_member` on duplicate.
- `DELETE /members/<uid>` revokes. 204 on success, 404 if the membership
doesn't exist.
Every route reuses `_engagement_or_404` *before* any membership query, so
an RT operator targeting a foreign engagement receives the same 404 as for
a non-existent ID — matching the MA6 anti-leak posture flagged by
spec-analyst on this sprint.
Audit log viewer on `/api/v1/audit/log`:
- Single endpoint `GET`, paginated `Page[AuditLogEntry]`, gated by
`AUDIT_READ` (rt_lead only).
- Filters: `?action=`, `?actor_id=`, `?resource_type=`, `?since=`,
`?until=`. Times are ISO 8601; invalid input goes through the global 422
envelope with a `loc` field for the bad parameter.
- Exposes `prev_hash` / `row_hash` to support future client-side
chain-verification (D-013 stayed v1).
- Sorted by `ts DESC` so the most recent activity is the first page.
Blueprints registered in `api/__init__.py`.
Mimic — backend
Sprint 0 skeleton. Python 3.12+ / Flask / SQLAlchemy 2 / Alembic / Pydantic 2.
Layout
backend/
├── src/mimic/
│ ├── app.py # Flask app factory + SocketIO init
│ ├── config.py # Pydantic Settings
│ ├── extensions.py # db, migrate, socketio, login_manager
│ ├── db/
│ │ ├── models/ # SQLAlchemy 2 typed models
│ │ ├── repositories/ # data access per aggregate
│ │ └── migrations/ # Alembic
│ ├── schemas/ # Pydantic 2 DTOs
│ ├── api/ # Flask blueprints (REST)
│ ├── ws/ # Flask-SocketIO namespaces
│ ├── connectors/ # C2Connector ABC + payload mapping
│ ├── orchestrator/ # run state machine (stub in sprint 0)
│ ├── templating/ # Jinja2 sandbox + regex_extract
│ ├── audit/ # append-only writer + rotation
│ ├── reporting/ # WeasyPrint builder (stub in sprint 0)
│ ├── rbac/ # group-based permission matrix (F11)
│ ├── importers/ # ATR + C2 journal (stub in sprint 0)
│ └── cli/ # mimic-cli (click)
└── tests/
├── unit/ # SQLite, pure logic
└── integration/ # testcontainers Postgres
Local dev
make install # uv venv + pip install -e .[dev]
make db-up # $(CONTAINER) compose up -d postgres (auto-detect docker|podman)
make db-bootstrap # one-time: create the mimic_audit_writer role (see below)
make db-migrate # alembic upgrade head
make run # flask run (debug)
make test # pytest unit
make test-int # pytest integration (testcontainers)
make lint # ruff + mypy strict
Audit writer role (dev)
mimic_audit_writer is provisioned by the Ansible playbook in production
(decision D-010). For local development, create it manually after make db-up:
# Substitute "podman" for "docker" if your runtime is Podman.
$(command -v docker || command -v podman) exec -it mimic-postgres \
psql -U mimic_app -d mimic \
-c "CREATE ROLE mimic_audit_writer LOGIN PASSWORD 'pick-a-dev-secret';"
Then expose the same secret in MIMIC_DATABASE_AUDIT_URL in your .env. The
Alembic migration grants the INSERT-only permission on audit_log against
this role; if it does not exist, the grant block is a no-op (idempotent).
What sprint 0 ships
- Full §8 data model + Alembic initial migration (Postgres-specific constraints: audit_log write-only role, soc_session hash, c2_credential Fernet column).
C2ConnectorABC + dataclasses +payload_typeenum + factory. No real Mythic/Home implementation (blocked on PR1/PR2).- Jinja2 SandboxedEnvironment +
regex_extractfilter (re2). - Local auth (bcrypt + Flask session) + group-based RBAC matching the F11 permission matrix.
- Flat CRUD on engagements / hosts / TTPs / scenarios.
- pytest baseline + testcontainers Postgres scaffolding.
Out of sprint 0
Orchestrator, WebSocket cockpit, real connectors, report generation, audit rotation.