video-accessibility/backend/app/services/audit_logger.py
Vadym Samoilenko 31199f8705 chore: push all session changes — backend hardening, tests, apache config, deploy scripts
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-30 15:52:14 +01:00

334 lines
11 KiB
Python

"""Audit logging service for tracking sensitive operations."""
import uuid
from datetime import datetime, timedelta
from typing import Any
from fastapi import Request
from motor.motor_asyncio import AsyncIOMotorCollection
from app.core.config import get_settings
from app.core.database import get_database
from app.models.audit_log import (
AuditAction,
AuditLog,
AuditLogQuery,
AuditLogResponse,
AuditLogSeverity,
)
from app.models.user import User
from app.telemetry.tracing import trace_async_operation
class AuditLogger:
"""Service for managing audit logs."""
def __init__(self):
self.settings = get_settings()
self.collection: AsyncIOMotorCollection | None = None
async def _get_collection(self) -> AsyncIOMotorCollection:
"""Get the audit logs collection."""
if self.collection is None:
db = await get_database()
self.collection = db.audit_logs
return self.collection
@trace_async_operation("audit_logger.log_action")
async def log_action(
self,
action: AuditAction,
description: str,
user: User | None = None,
request: Request | None = None,
resource_type: str | None = None,
resource_id: str | None = None,
resource_name: str | None = None,
details: dict[str, Any] | None = None,
severity: AuditLogSeverity = AuditLogSeverity.INFO,
success: bool = True,
error_message: str | None = None
) -> str:
"""
Log an audit event.
Returns:
The ID of the created audit log entry.
"""
# Extract request context
ip_address = None
user_agent = None
request_id = None
if request:
# Get IP address (handle forwarded headers)
forwarded_for = request.headers.get("X-Forwarded-For")
if forwarded_for:
ip_address = forwarded_for.split(',')[0].strip()
elif request.client:
ip_address = request.client.host
user_agent = request.headers.get("User-Agent")
request_id = request.headers.get("X-Request-ID", str(uuid.uuid4()))
# Create audit log entry
audit_log = AuditLog(
action=action,
severity=severity,
description=description,
user_id=user.id if user else None,
user_email=user.email if user else None,
user_role=(user.role.value if hasattr(user.role, "value") else user.role) if user else None,
ip_address=ip_address,
user_agent=user_agent,
request_id=request_id,
resource_type=resource_type,
resource_id=resource_id,
resource_name=resource_name,
details=details or {},
success=success,
error_message=error_message,
environment=self.settings.app_env,
service_name="accessible-video-api",
api_version="v1"
)
# Save to database
collection = await self._get_collection()
result = await collection.insert_one(audit_log.dict(by_alias=True))
return str(result.inserted_id)
@trace_async_operation("audit_logger.query_logs")
async def query_logs(self, query: AuditLogQuery) -> AuditLogResponse:
"""Query audit logs with filtering and pagination."""
collection = await self._get_collection()
# Build MongoDB query
mongo_query = {}
# Time range filter
if query.start_date or query.end_date:
timestamp_filter = {}
if query.start_date:
timestamp_filter["$gte"] = query.start_date
if query.end_date:
timestamp_filter["$lte"] = query.end_date
mongo_query["timestamp"] = timestamp_filter
# Exact match filters
if query.action:
mongo_query["action"] = query.action
if query.severity:
mongo_query["severity"] = query.severity
if query.user_id:
mongo_query["user_id"] = query.user_id
if query.user_email:
import re as _re
mongo_query["user_email"] = _re.compile(
f"^{_re.escape(query.user_email)}$", _re.IGNORECASE
)
if query.resource_type:
mongo_query["resource_type"] = query.resource_type
if query.resource_id:
mongo_query["resource_id"] = query.resource_id
if query.success is not None:
mongo_query["success"] = query.success
# Text search
if query.search:
mongo_query["$or"] = [
{"description": {"$regex": query.search, "$options": "i"}},
{"details": {"$regex": query.search, "$options": "i"}},
{"error_message": {"$regex": query.search, "$options": "i"}}
]
# Get total count
total_count = await collection.count_documents(mongo_query)
# Execute query with pagination and sorting
cursor = collection.find(mongo_query)
# Apply sorting
sort_direction = query.sort_order
cursor = cursor.sort(query.sort_by, sort_direction)
# Apply pagination
cursor = cursor.skip(query.skip).limit(query.limit)
# Execute query
documents = await cursor.to_list(length=query.limit)
# Convert to Pydantic models
logs = []
for doc in documents:
try:
logs.append(AuditLog(**doc))
except Exception as e:
# Log conversion error but continue
print(f"Error converting audit log document: {e}")
continue
# Calculate pagination info
page = (query.skip // query.limit) + 1
has_more = (query.skip + len(logs)) < total_count
return AuditLogResponse(
logs=logs,
total_count=total_count,
page=page,
page_size=len(logs),
has_more=has_more
)
async def get_user_activity(self, user_id: str, days: int = 30) -> list[AuditLog]:
"""Get recent activity for a specific user."""
from_date = datetime.utcnow().replace(
hour=0, minute=0, second=0, microsecond=0
) - timedelta(days=days)
query = AuditLogQuery(
user_id=user_id,
start_date=from_date,
limit=1000,
sort_by="timestamp",
sort_order=-1
)
response = await self.query_logs(query)
return response.logs
async def get_security_events(self, hours: int = 24) -> list[AuditLog]:
"""Get recent security-related events."""
from_date = datetime.utcnow() - timedelta(hours=hours)
security_actions = [
AuditAction.LOGIN_FAILURE,
AuditAction.RATE_LIMIT_EXCEEDED,
AuditAction.VALIDATION_FAILURE,
AuditAction.UNAUTHORIZED_ACCESS,
AuditAction.SUSPICIOUS_ACTIVITY
]
collection = await self._get_collection()
query = {
"timestamp": {"$gte": from_date},
"action": {"$in": security_actions}
}
cursor = collection.find(query).sort("timestamp", -1).limit(1000)
documents = await cursor.to_list(length=1000)
logs = []
for doc in documents:
try:
logs.append(AuditLog(**doc))
except Exception:
continue
return logs
async def cleanup_old_logs(self, retention_days: int = 365) -> int:
"""Clean up audit logs older than retention period."""
cutoff_date = datetime.utcnow().replace(
hour=0, minute=0, second=0, microsecond=0
) - timedelta(days=retention_days)
collection = await self._get_collection()
result = await collection.delete_many({
"timestamp": {"$lt": cutoff_date}
})
return result.deleted_count
# Global audit logger instance
audit_logger = AuditLogger()
# Convenience functions for common audit operations
async def log_auth_success(user: User, request: Request):
"""Log successful authentication."""
await audit_logger.log_action(
action=AuditAction.LOGIN_SUCCESS,
description=f"User {user.email} logged in successfully",
user=user,
request=request,
severity=AuditLogSeverity.INFO
)
async def log_auth_failure(email: str, request: Request, reason: str):
"""Log failed authentication attempt."""
await audit_logger.log_action(
action=AuditAction.LOGIN_FAILURE,
description=f"Failed login attempt for {email}: {reason}",
request=request,
severity=AuditLogSeverity.WARNING,
success=False,
error_message=reason,
details={"attempted_email": email}
)
async def log_job_action(action: AuditAction, job_id: str, user: User, request: Request, details: dict | None = None):
"""Log job-related actions."""
action_descriptions = {
AuditAction.JOB_CREATE: "Job created",
AuditAction.JOB_APPROVE: "Job approved",
AuditAction.JOB_REJECT: "Job rejected",
AuditAction.JOB_CANCEL: "Job cancelled",
AuditAction.JOB_UPDATE: "Job updated"
}
await audit_logger.log_action(
action=action,
description=f"{action_descriptions.get(action, str(action))} by {user.email}",
user=user,
request=request,
resource_type="job",
resource_id=job_id,
details=details
)
async def log_user_management(action: AuditAction, target_user_id: str, admin_user: User, request: Request, details: dict | None = None):
"""Log user management actions."""
action_descriptions = {
AuditAction.USER_CREATE: "User created",
AuditAction.USER_UPDATE: "User updated",
AuditAction.USER_DELETE: "User deleted",
AuditAction.USER_ROLE_CHANGE: "User role changed",
AuditAction.USER_ACTIVATE: "User activated",
AuditAction.USER_DEACTIVATE: "User deactivated"
}
await audit_logger.log_action(
action=action,
description=f"{action_descriptions.get(action, str(action))} by admin {admin_user.email}",
user=admin_user,
request=request,
resource_type="user",
resource_id=target_user_id,
details=details,
severity=AuditLogSeverity.INFO
)
async def log_security_event(action: AuditAction, description: str, request: Request, user: User | None = None, details: dict | None = None):
"""Log security-related events."""
await audit_logger.log_action(
action=action,
description=description,
user=user,
request=request,
severity=AuditLogSeverity.WARNING if action != AuditAction.SUSPICIOUS_ACTIVITY else AuditLogSeverity.CRITICAL,
success=False,
details=details
)