Files
ThreatHunt/backend/app/api/routes/cases.py
2026-02-20 14:32:42 -05:00

297 lines
9.9 KiB
Python

"""API routes for case management — CRUD for cases, tasks, and activity logs."""
import logging
from typing import Optional
from fastapi import APIRouter, Depends, HTTPException, Query
from pydantic import BaseModel, Field
from sqlalchemy import select, func, desc
from sqlalchemy.ext.asyncio import AsyncSession
from app.db import get_db
from app.db.models import Case, CaseTask, ActivityLog, _new_id, _utcnow
logger = logging.getLogger(__name__)
router = APIRouter(prefix="/api/cases", tags=["cases"])
# ── Pydantic models ──────────────────────────────────────────────────
class CaseCreate(BaseModel):
title: str
description: Optional[str] = None
severity: str = "medium"
tlp: str = "amber"
pap: str = "amber"
priority: int = 2
assignee: Optional[str] = None
tags: Optional[list[str]] = None
hunt_id: Optional[str] = None
mitre_techniques: Optional[list[str]] = None
iocs: Optional[list[dict]] = None
class CaseUpdate(BaseModel):
title: Optional[str] = None
description: Optional[str] = None
severity: Optional[str] = None
tlp: Optional[str] = None
pap: Optional[str] = None
status: Optional[str] = None
priority: Optional[int] = None
assignee: Optional[str] = None
tags: Optional[list[str]] = None
mitre_techniques: Optional[list[str]] = None
iocs: Optional[list[dict]] = None
class TaskCreate(BaseModel):
title: str
description: Optional[str] = None
assignee: Optional[str] = None
class TaskUpdate(BaseModel):
title: Optional[str] = None
description: Optional[str] = None
status: Optional[str] = None
assignee: Optional[str] = None
order: Optional[int] = None
# ── Helper: log activity ─────────────────────────────────────────────
async def _log_activity(
db: AsyncSession,
entity_type: str,
entity_id: str,
action: str,
details: dict | None = None,
):
log = ActivityLog(
entity_type=entity_type,
entity_id=entity_id,
action=action,
details=details,
created_at=_utcnow(),
)
db.add(log)
# ── Case CRUD ─────────────────────────────────────────────────────────
@router.post("", summary="Create a case")
async def create_case(body: CaseCreate, db: AsyncSession = Depends(get_db)):
now = _utcnow()
case = Case(
id=_new_id(),
title=body.title,
description=body.description,
severity=body.severity,
tlp=body.tlp,
pap=body.pap,
priority=body.priority,
assignee=body.assignee,
tags=body.tags,
hunt_id=body.hunt_id,
mitre_techniques=body.mitre_techniques,
iocs=body.iocs,
created_at=now,
updated_at=now,
)
db.add(case)
await _log_activity(db, "case", case.id, "created", {"title": body.title})
await db.commit()
await db.refresh(case)
return _case_to_dict(case)
@router.get("", summary="List cases")
async def list_cases(
status: Optional[str] = Query(None),
hunt_id: Optional[str] = Query(None),
limit: int = Query(50, ge=1, le=200),
offset: int = Query(0, ge=0),
db: AsyncSession = Depends(get_db),
):
q = select(Case).order_by(desc(Case.updated_at))
if status:
q = q.where(Case.status == status)
if hunt_id:
q = q.where(Case.hunt_id == hunt_id)
q = q.offset(offset).limit(limit)
result = await db.execute(q)
cases = result.scalars().all()
count_q = select(func.count(Case.id))
if status:
count_q = count_q.where(Case.status == status)
if hunt_id:
count_q = count_q.where(Case.hunt_id == hunt_id)
total = (await db.execute(count_q)).scalar() or 0
return {"cases": [_case_to_dict(c) for c in cases], "total": total}
@router.get("/{case_id}", summary="Get case detail")
async def get_case(case_id: str, db: AsyncSession = Depends(get_db)):
case = await db.get(Case, case_id)
if not case:
raise HTTPException(status_code=404, detail="Case not found")
return _case_to_dict(case)
@router.put("/{case_id}", summary="Update a case")
async def update_case(case_id: str, body: CaseUpdate, db: AsyncSession = Depends(get_db)):
case = await db.get(Case, case_id)
if not case:
raise HTTPException(status_code=404, detail="Case not found")
changes = {}
for field in ["title", "description", "severity", "tlp", "pap", "status",
"priority", "assignee", "tags", "mitre_techniques", "iocs"]:
val = getattr(body, field)
if val is not None:
old = getattr(case, field)
setattr(case, field, val)
changes[field] = {"old": old, "new": val}
if "status" in changes and changes["status"]["new"] == "in-progress" and not case.started_at:
case.started_at = _utcnow()
if "status" in changes and changes["status"]["new"] in ("resolved", "closed"):
case.resolved_at = _utcnow()
case.updated_at = _utcnow()
await _log_activity(db, "case", case.id, "updated", changes)
await db.commit()
await db.refresh(case)
return _case_to_dict(case)
@router.delete("/{case_id}", summary="Delete a case")
async def delete_case(case_id: str, db: AsyncSession = Depends(get_db)):
case = await db.get(Case, case_id)
if not case:
raise HTTPException(status_code=404, detail="Case not found")
await db.delete(case)
await db.commit()
return {"deleted": True}
# ── Task CRUD ─────────────────────────────────────────────────────────
@router.post("/{case_id}/tasks", summary="Add task to case")
async def create_task(case_id: str, body: TaskCreate, db: AsyncSession = Depends(get_db)):
case = await db.get(Case, case_id)
if not case:
raise HTTPException(status_code=404, detail="Case not found")
now = _utcnow()
task = CaseTask(
id=_new_id(),
case_id=case_id,
title=body.title,
description=body.description,
assignee=body.assignee,
created_at=now,
updated_at=now,
)
db.add(task)
await _log_activity(db, "case", case_id, "task_created", {"title": body.title})
await db.commit()
await db.refresh(task)
return _task_to_dict(task)
@router.put("/{case_id}/tasks/{task_id}", summary="Update a task")
async def update_task(case_id: str, task_id: str, body: TaskUpdate, db: AsyncSession = Depends(get_db)):
task = await db.get(CaseTask, task_id)
if not task or task.case_id != case_id:
raise HTTPException(status_code=404, detail="Task not found")
for field in ["title", "description", "status", "assignee", "order"]:
val = getattr(body, field)
if val is not None:
setattr(task, field, val)
task.updated_at = _utcnow()
await _log_activity(db, "case", case_id, "task_updated", {"task_id": task_id})
await db.commit()
await db.refresh(task)
return _task_to_dict(task)
@router.delete("/{case_id}/tasks/{task_id}", summary="Delete a task")
async def delete_task(case_id: str, task_id: str, db: AsyncSession = Depends(get_db)):
task = await db.get(CaseTask, task_id)
if not task or task.case_id != case_id:
raise HTTPException(status_code=404, detail="Task not found")
await db.delete(task)
await db.commit()
return {"deleted": True}
# ── Activity Log ──────────────────────────────────────────────────────
@router.get("/{case_id}/activity", summary="Get case activity log")
async def get_activity(
case_id: str,
limit: int = Query(50, ge=1, le=200),
db: AsyncSession = Depends(get_db),
):
q = (
select(ActivityLog)
.where(ActivityLog.entity_type == "case", ActivityLog.entity_id == case_id)
.order_by(desc(ActivityLog.created_at))
.limit(limit)
)
result = await db.execute(q)
logs = result.scalars().all()
return {
"logs": [
{
"id": l.id,
"action": l.action,
"details": l.details,
"user_id": l.user_id,
"created_at": l.created_at.isoformat() if l.created_at else None,
}
for l in logs
]
}
# ── Helpers ───────────────────────────────────────────────────────────
def _case_to_dict(c: Case) -> dict:
return {
"id": c.id,
"title": c.title,
"description": c.description,
"severity": c.severity,
"tlp": c.tlp,
"pap": c.pap,
"status": c.status,
"priority": c.priority,
"assignee": c.assignee,
"tags": c.tags or [],
"hunt_id": c.hunt_id,
"owner_id": c.owner_id,
"mitre_techniques": c.mitre_techniques or [],
"iocs": c.iocs or [],
"started_at": c.started_at.isoformat() if c.started_at else None,
"resolved_at": c.resolved_at.isoformat() if c.resolved_at else None,
"created_at": c.created_at.isoformat() if c.created_at else None,
"updated_at": c.updated_at.isoformat() if c.updated_at else None,
"tasks": [_task_to_dict(t) for t in (c.tasks or [])],
}
def _task_to_dict(t: CaseTask) -> dict:
return {
"id": t.id,
"case_id": t.case_id,
"title": t.title,
"description": t.description,
"status": t.status,
"assignee": t.assignee,
"order": t.order,
"created_at": t.created_at.isoformat() if t.created_at else None,
"updated_at": t.updated_at.isoformat() if t.updated_at else None,
}