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plantillas-proyectos/backend/api/v1/modules/a76/audit_log/events.py

234 lines
7.5 KiB
Python

"""
Audit Log Events
"""
import logging
from sqlalchemy import event, inspect
from sqlalchemy.orm import Session
from api.v1.modules.a76.general_catalogs.company.models import Company
from api.v1.modules.a76.invoices.models import InvoiceHeader
from core.database import rls_company_var, rls_tenant_var
from .services.service import AuditService
from .utils.serialization import serialize_for_json
from core.context import get_user_context
logger = logging.getLogger(__name__)
def register_audit_listeners(models_to_audit):
"""
Register SQLAlchemy listeners for given models
"""
for model in models_to_audit:
event.listen(model, "after_insert", after_insert_listener)
event.listen(model, "after_update", after_update_listener)
event.listen(model, "after_delete", after_delete_listener)
def _get_current_username():
try:
context = get_user_context()
if context:
# Token usually has 'preferred_username' or 'name' or 'sub'
return (
context.get("preferred_username")
or context.get("email")
or context.get("sub")
or "System"
)
except Exception:
pass
return "System"
def _resolve_audit_company_tenant(session: Session, target) -> tuple:
"""
company_id / tenant_id desde la fila ORM, ContextVars RLS (petición HTTP),
o ``Company.tenant_id`` por ``company_id``.
"""
resolution_source = "target"
company_id = getattr(target, "company_id", None)
if company_id is None and getattr(target, "__tablename__", None) == "company":
company_id = getattr(target, "id", None)
if company_id is not None:
resolution_source = "company_self_id"
if company_id is None:
company_id = rls_company_var.get()
if company_id is not None:
resolution_source = "rls_context"
tenant_id = getattr(target, "tenant_id", None)
if tenant_id is None:
tenant_id = rls_tenant_var.get()
if tenant_id is not None and resolution_source == "target":
resolution_source = "rls_context"
# Common fallback for invoice child tables where invoice_id points to header scope.
if (company_id is None or tenant_id is None) and hasattr(target, "invoice_id"):
invoice_id = getattr(target, "invoice_id", None)
if invoice_id is not None:
invoice_scope = (
session.query(InvoiceHeader.company_id, InvoiceHeader.tenant_id)
.filter(InvoiceHeader.id == invoice_id, InvoiceHeader.deleted_at.is_(None))
.first()
)
if invoice_scope:
if company_id is None:
company_id = invoice_scope[0]
if tenant_id is None:
tenant_id = invoice_scope[1]
resolution_source = "invoice_header_lookup"
if tenant_id is None and company_id is not None:
row = (
session.query(Company.tenant_id)
.filter(Company.id == company_id, Company.deleted_at.is_(None))
.first()
)
if row:
tenant_id = int(row[0])
resolution_source = "company_lookup"
return company_id, tenant_id, resolution_source
def after_insert_listener(mapper, connection, target):
"""
Listener for INSERT operations
"""
table_name = target.__tablename__
record_data = {c.name: getattr(target, c.name) for c in mapper.columns}
username = _get_current_username()
session = Session(bind=connection)
try:
company_id, tenant_id, resolution_source = _resolve_audit_company_tenant(
session, target
)
if company_id is None or tenant_id is None:
logger.warning(
"Audit skip INSERT table=%s record_id=%s company_id=%s tenant_id=%s source=%s",
table_name,
getattr(target, "id", None),
company_id,
tenant_id,
resolution_source,
)
return
AuditService.log_crud_operation(
db=session,
table_name=table_name,
operation_type="CREATE",
record_data=record_data,
username=username,
record_id=str(getattr(target, "id", "")),
company_id=company_id,
tenant_id=tenant_id,
)
except Exception as e:
logger.warning("Error logging insert for %s: %s", table_name, e)
finally:
session.close()
def after_update_listener(mapper, connection, target):
"""
Listener for UPDATE operations
"""
table_name = target.__tablename__
state = inspect(target)
changes = {}
old_values = {}
new_values = {}
for attr in state.attrs:
hist = attr.history
if hist.has_changes():
changes[attr.key] = hist.added[0] if hist.added else None
old_values[attr.key] = hist.deleted[0] if hist.deleted else None
new_values[attr.key] = hist.added[0] if hist.added else None
if not changes:
return
record_data = {c.name: getattr(target, c.name) for c in mapper.columns}
username = _get_current_username()
session = Session(bind=connection)
try:
company_id, tenant_id, resolution_source = _resolve_audit_company_tenant(
session, target
)
if company_id is None or tenant_id is None:
logger.warning(
"Audit skip UPDATE table=%s record_id=%s company_id=%s tenant_id=%s source=%s",
table_name,
getattr(target, "id", None),
company_id,
tenant_id,
resolution_source,
)
return
AuditService.log_crud_operation(
db=session,
table_name=table_name,
operation_type="UPDATE",
record_data=record_data,
username=username,
record_id=str(getattr(target, "id", "")),
old_values=serialize_for_json(old_values),
new_values=serialize_for_json(new_values),
company_id=company_id,
tenant_id=tenant_id,
)
except Exception as e:
logger.warning("Error logging update for %s: %s", table_name, e)
finally:
session.close()
def after_delete_listener(mapper, connection, target):
"""
Listener for DELETE operations
"""
table_name = target.__tablename__
record_data = {c.name: getattr(target, c.name) for c in mapper.columns}
username = _get_current_username()
session = Session(bind=connection)
try:
company_id, tenant_id, resolution_source = _resolve_audit_company_tenant(
session, target
)
if company_id is None or tenant_id is None:
logger.warning(
"Audit skip DELETE table=%s record_id=%s company_id=%s tenant_id=%s source=%s",
table_name,
getattr(target, "id", None),
company_id,
tenant_id,
resolution_source,
)
return
AuditService.log_crud_operation(
db=session,
table_name=table_name,
operation_type="DELETE",
record_data=record_data,
username=username,
record_id=str(getattr(target, "id", "")),
company_id=company_id,
tenant_id=tenant_id,
)
except Exception as e:
logger.warning("Error logging delete for %s: %s", table_name, e)
finally:
session.close()