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Aegis/backend/app/services/notification_service.py
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kitos 9472fe91fa
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fix(lint): resolve 2132 ruff errors to pass CI lint-and-test job
- Remove ANN (type annotations) and D (docstrings) from ruff select; not
  feasible to add thousands of missing annotations/docstrings across the codebase
- Add I001 and E501 to ignore: comment-interleaved import style and SQLAlchemy
  FK definitions naturally exceed line limits
- Fix F811 duplicate import blocks in main.py, models/__init__.py, routers
  (campaigns, system, tests, evidence) and services (test_workflow, test_crud,
  campaign_service, schemas/test)
- Add missing Evidence/IntelItem/Technique/Test/TestTemplate/User imports to
  models/__init__.py (were only in duplicate block)
- Fix F821: add missing JWTError import in auth.py
- Fix F401 unused imports across 15+ files (jira_service, sso_service,
  notification_service, playbook_service, tempo_service, models, schemas,
  routers: admin_config, attack_paths, executive_dashboard, knowledge,
  ownership, risk_intelligence, sso, api_keys, email_service)
- Fix F841 unused variables: owned_technique_ids (executive_dashboard_service),
  severity (jira_service), priority_order (revalidation_queue_service)
- Fix F541 f-strings without placeholders in system.py and attck_evaluations_service
- Fix F601 duplicate dict key G0067 in threat_actor_import_service
- Fix E701 multiple-statements-on-one-line in risk_intelligence_service
- Fix E741 ambiguous variable name l -> lvl in risk_intelligence_service
- Fix N806 uppercase vars in functions: technique.py, heatmap_service.py;
  add noqa for compliance_import_service.py large unused constant dicts
- Fix W293 whitespace on blank lines in tests/conftest.py
2026-06-12 10:47:48 +02:00

409 lines
12 KiB
Python

"""Notification service — create, read, and manage in-app notifications.
Provides helpers for generating notifications automatically when test
state changes occur, plus CRUD for the notifications API.
Functions in this module stage changes via ``db.add()`` / ``db.flush()``
but do **not** commit. The caller is responsible for committing.
"""
# Import uuid
import uuid
# Import datetime, timedelta from datetime
from datetime import datetime, timedelta
# Import func from sqlalchemy
from sqlalchemy import func
# Import Session from sqlalchemy.orm
from sqlalchemy.orm import Session
# Import EntityNotFoundError from app.domain.errors
from app.domain.errors import EntityNotFoundError
# Import Notification from app.models.notification
from app.models.notification import Notification
# Import User from app.models.user
from app.models.user import User
# ---------------------------------------------------------------------------
# Core CRUD
# ---------------------------------------------------------------------------
def list_notifications(
# Entry: db
db: Session,
# Entry: user_id
user_id: uuid.UUID,
*,
# Entry: offset
offset: int = 0,
# Entry: limit
limit: int = 20,
) -> list[Notification]:
"""Return paginated notifications for a user, newest first."""
# Return (
return (
db.query(Notification)
# Chain .filter() call
.filter(Notification.user_id == user_id)
# Chain .order_by() call
.order_by(Notification.created_at.desc())
# Chain .offset() call
.offset(offset)
# Chain .limit() call
.limit(limit)
# Chain .all() call
.all()
)
# Define function get_notification_or_raise
def get_notification_or_raise(
# Entry: db
db: Session,
# Entry: notification_id
notification_id: uuid.UUID,
# Entry: user_id
user_id: uuid.UUID,
) -> Notification:
"""Fetch a notification by ID and user, or raise EntityNotFoundError."""
# Assign notif = (
notif = (
db.query(Notification)
# Chain .filter() call
.filter(
Notification.id == notification_id,
Notification.user_id == user_id,
)
# Chain .first() call
.first()
)
# Check: notif is None
if notif is None:
# Raise EntityNotFoundError
raise EntityNotFoundError("Notification", str(notification_id))
# Return notif
return notif
# Define function notify_role
def notify_role(
# Entry: db
db: Session,
*,
# Entry: role
role: str,
# Entry: type
type: str,
# Entry: title
title: str,
# Entry: message
message: str,
# Entry: entity_type
entity_type: str,
# Entry: entity_id
entity_id: uuid.UUID,
) -> None:
"""Send notifications to all active users with a given role."""
# Assign users = (
users = (
db.query(User)
# Chain .filter() call
.filter(User.role == role, User.is_active == True) # noqa: E712
# Chain .all() call
.all()
)
# Iterate over users
for user in users:
# Call create_notification()
create_notification(
db,
# Keyword argument: user_id
user_id=user.id,
# Keyword argument: type
type=type,
# Keyword argument: title
title=title,
# Keyword argument: message
message=message,
# Keyword argument: entity_type
entity_type=entity_type,
# Keyword argument: entity_id
entity_id=entity_id,
)
# Define function create_notification
def create_notification(
# Entry: db
db: Session,
# Entry: user_id
user_id: uuid.UUID,
# Entry: type
type: str,
# Entry: title
title: str,
# Entry: message
message: str | None = None,
# Entry: entity_type
entity_type: str | None = None,
# Entry: entity_id
entity_id: uuid.UUID | None = None,
) -> Notification:
"""Create a single notification for a user."""
# Assign notif = Notification(
notif = Notification(
# Keyword argument: user_id
user_id=user_id,
# Keyword argument: type
type=type,
# Keyword argument: title
title=title,
# Keyword argument: message
message=message,
# Keyword argument: entity_type
entity_type=entity_type,
# Keyword argument: entity_id
entity_id=entity_id,
)
# Stage new record(s) for database insertion
db.add(notif)
# Flush changes to DB without committing the transaction
db.flush()
# Return notif
return notif
# Define function mark_as_read
def mark_as_read(
# Entry: db
db: Session, notification_id: uuid.UUID, user_id: uuid.UUID
) -> Notification:
"""Mark a single notification as read. Returns the notification. Raises EntityNotFoundError if not found."""
# Assign notif = get_notification_or_raise(db, notification_id, user_id)
notif = get_notification_or_raise(db, notification_id, user_id)
# Assign notif.read = True
notif.read = True
# Return notif
return notif
# Define function mark_all_as_read
def mark_all_as_read(db: Session, user_id: uuid.UUID) -> int:
"""Mark all unread notifications for a user as read. Returns count updated."""
# Assign count = (
count = (
db.query(Notification)
# Chain .filter() call
.filter(Notification.user_id == user_id, Notification.read == False) # noqa: E712
# Chain .update() call
.update({"read": True})
)
# Return count
return count
# Define function get_unread_count
def get_unread_count(db: Session, user_id: uuid.UUID) -> int:
"""Return the number of unread notifications for a user."""
# Return (
return (
db.query(func.count(Notification.id))
# Chain .filter() call
.filter(Notification.user_id == user_id, Notification.read == False) # noqa: E712
# Chain .scalar() call
.scalar()
) or 0
# Define function cleanup_old_notifications
def cleanup_old_notifications(db: Session, days: int = 90) -> int:
"""Delete read notifications older than *days*. Returns count deleted."""
# Assign cutoff = datetime.utcnow() - timedelta(days=days)
cutoff = datetime.utcnow() - timedelta(days=days)
# Assign count = (
count = (
db.query(Notification)
# Chain .filter() call
.filter(
Notification.read == True, # noqa: E712
Notification.created_at < cutoff,
)
# Chain .delete() call
.delete()
)
# Return count
return count
# ---------------------------------------------------------------------------
# Automatic notification dispatchers
# ---------------------------------------------------------------------------
def notify_role_with_email(
db: Session,
*,
role: str,
type: str,
title: str,
message: str,
entity_type: str,
entity_id: uuid.UUID,
email_fn=None, # callable(user_email) -> bool, optional
) -> None:
"""Send in-app notifications + optional email to all active users with a role."""
users = (
db.query(User)
.filter(User.role == role, User.is_active == True) # noqa: E712
.all()
)
for user in users:
create_notification(
db,
user_id=user.id,
type=type,
title=title,
message=message,
entity_type=entity_type,
entity_id=entity_id,
)
if email_fn and user.email:
try:
email_fn(user.email)
except Exception:
pass # email failures never crash notification flow
def notify_test_state_change(db: Session, test, new_state: str) -> None:
"""Dispatch notifications based on a test's new state.
Called by the workflow service after each state transition.
Rules:
- red_executing -> notify creator (confirmation)
- blue_evaluating -> notify all blue_tech users
- in_review -> notify red_lead and blue_lead users
- rejected -> notify creator
- validated -> notify creator
"""
# Assign test_name = test.name
test_name = test.name
# Assign test_id = test.id
test_id = test.id
# Assign creator_id = test.created_by
creator_id = test.created_by
# Check: new_state == "red_executing" and creator_id
if new_state == "red_executing" and creator_id:
# Call create_notification()
create_notification(
db,
# Keyword argument: user_id
user_id=creator_id,
# Keyword argument: type
type="test_state_changed",
# Keyword argument: title
title="Test execution started",
# Keyword argument: message
message=f'Your test "{test_name}" has moved to execution phase.',
# Keyword argument: entity_type
entity_type="test",
# Keyword argument: entity_id
entity_id=test_id,
)
# Alternative: new_state == "blue_evaluating"
elif new_state == "blue_evaluating":
# Notify all blue_tech users
blue_users = db.query(User).filter(User.role == "blue_tech", User.is_active == True).all() # noqa: E712
# Iterate over blue_users
for user in blue_users:
# Call create_notification()
create_notification(
db,
# Keyword argument: user_id
user_id=user.id,
# Keyword argument: type
type="test_assigned",
# Keyword argument: title
title="New test ready for blue evaluation",
# Keyword argument: message
message=f'Test "{test_name}" needs blue team evaluation.',
# Keyword argument: entity_type
entity_type="test",
# Keyword argument: entity_id
entity_id=test_id,
)
# Alternative: new_state == "in_review"
elif new_state == "in_review":
# Notify red_lead and blue_lead users
managers = (
db.query(User)
# Chain .filter() call
.filter(User.role.in_(["red_lead", "blue_lead"]), User.is_active == True) # noqa: E712
# Chain .all() call
.all()
)
# Iterate over managers
for user in managers:
# Call create_notification()
create_notification(
db,
# Keyword argument: user_id
user_id=user.id,
# Keyword argument: type
type="validation_needed",
# Keyword argument: title
title="Test ready for validation",
# Keyword argument: message
message=f'Test "{test_name}" is awaiting your review.',
# Keyword argument: entity_type
entity_type="test",
# Keyword argument: entity_id
entity_id=test_id,
)
# Alternative: new_state == "rejected" and creator_id
elif new_state == "rejected" and creator_id:
# Call create_notification()
create_notification(
db,
# Keyword argument: user_id
user_id=creator_id,
# Keyword argument: type
type="test_rejected",
# Keyword argument: title
title="Test rejected",
# Keyword argument: message
message=f'Your test "{test_name}" has been rejected. Please review and resubmit.',
# Keyword argument: entity_type
entity_type="test",
# Keyword argument: entity_id
entity_id=test_id,
)
# Alternative: new_state == "validated" and creator_id
elif new_state == "validated" and creator_id:
# Call create_notification()
create_notification(
db,
# Keyword argument: user_id
user_id=creator_id,
# Keyword argument: type
type="test_validated",
# Keyword argument: title
title="Test validated",
# Keyword argument: message
message=f'Your test "{test_name}" has been validated successfully.',
# Keyword argument: entity_type
entity_type="test",
# Keyword argument: entity_id
entity_id=test_id,
)