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catalogs.go
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catalogs.go
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package orchestrator
import (
"context"
"encoding/json"
"errors"
"fmt"
"clouditor.io/clouditor/api"
"clouditor.io/clouditor/api/orchestrator"
"clouditor.io/clouditor/persistence"
"clouditor.io/clouditor/persistence/gorm"
"clouditor.io/clouditor/service"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/types/known/emptypb"
)
// CreateCatalog implements a method for creating a new catalog.
func (svc *Service) CreateCatalog(_ context.Context, req *orchestrator.CreateCatalogRequest) (
*orchestrator.Catalog, error) {
// TODO(oxisto): extract to validate method
// Validate request
if req == nil {
return nil,
status.Errorf(codes.InvalidArgument, api.ErrRequestIsNil.Error())
}
if req.Catalog == nil {
return nil,
status.Errorf(codes.InvalidArgument, orchestrator.ErrCatalogIsNil.Error())
}
if req.Catalog.Id == "" {
return nil,
status.Errorf(codes.InvalidArgument, orchestrator.ErrCatalogIDIsMissing.Error())
}
// Persist the new catalog in our database
err := svc.storage.Create(req.Catalog)
if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %v", err)
}
// Return catalog
return req.Catalog, nil
}
// GetCatalog retrieves a control specified by the catalog ID, the control's category
// name and the control ID. If present, it also includes a list of sub-controls and any metrics associated to any
// controls.
func (svc *Service) GetCatalog(_ context.Context, req *orchestrator.GetCatalogRequest) (response *orchestrator.Catalog, err error) {
if req == nil {
return nil, status.Errorf(codes.InvalidArgument, api.ErrRequestIsNil.Error())
}
if req.CatalogId == "" {
return nil, status.Errorf(codes.NotFound, orchestrator.ErrCatalogIDIsMissing.Error())
}
response = new(orchestrator.Catalog)
err = svc.storage.Get(response,
// Preload fills in associated entities, in this case controls. We want to only select those controls which do
// not have a parent, e.g., the top-level
gorm.WithPreload("Categories.Controls", "parent_control_id IS NULL"),
// Select catalog by ID
"Id = ?", req.CatalogId)
if errors.Is(err, persistence.ErrRecordNotFound) {
return nil, status.Errorf(codes.NotFound, "catalog not found")
} else if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %v", err)
}
return response, nil
}
// ListCatalogs Lists all security controls catalogs. Each catalog includes a list of its
// categories but no additional sub-resources.
func (svc *Service) ListCatalogs(_ context.Context, req *orchestrator.ListCatalogsRequest) (res *orchestrator.ListCatalogsResponse, err error) {
// Validate the request
if err = api.ValidateListRequest[*orchestrator.Catalog](req); err != nil {
err = fmt.Errorf("invalid request: %w", err)
log.Error(err)
err = status.Errorf(codes.InvalidArgument, "%v", err)
return
}
res = new(orchestrator.ListCatalogsResponse)
res.Catalogs, res.NextPageToken, err = service.PaginateStorage[*orchestrator.Catalog](req, svc.storage,
service.DefaultPaginationOpts)
if err != nil {
return nil, status.Errorf(codes.Internal, "could not paginate results: %v", err)
}
return
}
// UpdateCatalog implements a method for updating an existing catalog
func (svc *Service) UpdateCatalog(_ context.Context, req *orchestrator.UpdateCatalogRequest) (res *orchestrator.Catalog, err error) {
if req.CatalogId == "" {
return nil, status.Errorf(codes.InvalidArgument, "catalog id is empty")
}
if req.Catalog == nil {
return nil, status.Errorf(codes.InvalidArgument, "catalog is empty")
}
res = req.Catalog
res.Id = req.CatalogId
err = svc.storage.Update(res, "id = ?", res.Id)
if err != nil && errors.Is(err, persistence.ErrRecordNotFound) {
return nil, status.Error(codes.NotFound, "catalog not found")
} else if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %v", err)
}
return
}
// RemoveCatalog implements a method for removing a catalog
func (svc *Service) RemoveCatalog(_ context.Context, req *orchestrator.RemoveCatalogRequest) (response *emptypb.Empty, err error) {
if req.CatalogId == "" {
return nil, status.Errorf(codes.InvalidArgument, "catalog id is empty")
}
err = svc.storage.Delete(&orchestrator.Catalog{}, "Id = ?", req.CatalogId)
if errors.Is(err, persistence.ErrRecordNotFound) {
return nil, status.Errorf(codes.NotFound, "catalog not found")
} else if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %v", err)
}
return &emptypb.Empty{}, nil
}
// GetCategory retrieves a category of a catalog specified by the catalog ID and the category name. It includes the
// first level of controls within each category.
func (srv *Service) GetCategory(_ context.Context, req *orchestrator.GetCategoryRequest) (res *orchestrator.Category, err error) {
res = new(orchestrator.Category)
err = srv.storage.Get(&res,
// Preload fills in associated entities, in this case controls. We want to only select those controls which do
// not have a parent, e.g., the top-level
gorm.WithPreload("Controls", "parent_control_id IS NULL"),
// Select the category by name and catalog ID
"name = ? AND catalog_id = ?", req.CategoryName, req.CatalogId)
if errors.Is(err, persistence.ErrRecordNotFound) {
return nil, status.Errorf(codes.NotFound, "category not found")
} else if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %v", err)
}
return res, nil
}
// GetControl retrieves a control specified by the catalog ID, the control's category name and the control ID. If
// present, it also includes a list of sub-controls and any metrics associated to the control.
func (srv *Service) GetControl(_ context.Context, req *orchestrator.GetControlRequest) (res *orchestrator.Control, err error) {
// TODO(oxisto): Validate request parameters
res = new(orchestrator.Control)
err = srv.storage.Get(&res,
// We only want to select controls for the specified category and catalog
"Id = ? AND category_name = ? AND category_catalog_id = ?", req.ControlId, req.CategoryName, req.CatalogId)
if errors.Is(err, persistence.ErrRecordNotFound) {
return nil, status.Errorf(codes.NotFound, "control not found")
} else if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %v", err)
}
return res, nil
}
// ListControls lists controls. If no additional parameters are specified, this lists all controls. If a
// catalog ID and a category name is specified, then only controls containing in this category are returned.
func (srv *Service) ListControls(_ context.Context, req *orchestrator.ListControlsRequest) (res *orchestrator.ListControlsResponse, err error) {
// Validate the request
if err = api.ValidateListRequest[*orchestrator.Control](req); err != nil {
err = fmt.Errorf("invalid request: %w", err)
log.Error(err)
err = status.Errorf(codes.InvalidArgument, "%v", err)
return
}
res = new(orchestrator.ListControlsResponse)
// If the category name is set (additional binding), forward it as a condition to the pagination method
if req.CategoryName != "" && req.CatalogId != "" {
res.Controls, res.NextPageToken, err = service.PaginateStorage[*orchestrator.Control](req, srv.storage,
service.DefaultPaginationOpts, "category_name = ? AND category_catalog_id = ?", req.CategoryName, req.CatalogId)
} else {
res.Controls, res.NextPageToken, err = service.PaginateStorage[*orchestrator.Control](req, srv.storage,
service.DefaultPaginationOpts)
}
if err != nil {
return nil, status.Errorf(codes.Internal, "could not paginate results: %v", err)
}
return
}
// loadCatalogs loads catalog definitions from a JSON file.
func (svc *Service) loadCatalogs() (err error) {
var catalogs []*orchestrator.Catalog
// Default to loading catalogs from our embedded file system
if svc.loadCatalogsFunc == nil {
svc.loadCatalogsFunc = svc.loadEmbeddedCatalogs
}
// Execute our catalogs loading function
catalogs, err = svc.loadCatalogsFunc()
if err != nil {
return fmt.Errorf("could not load catalogs: %w", err)
}
err = svc.storage.Save(catalogs)
if err != nil {
log.Errorf("Error while saving catalog %v", err)
}
return
}
func (svc *Service) loadEmbeddedCatalogs() (catalogs []*orchestrator.Catalog, err error) {
var b []byte
log.Infof("Loading catalogs from %s", svc.catalogsFile)
b, err = f.ReadFile(svc.catalogsFile)
if err != nil {
return nil, fmt.Errorf("error while loading %s: %w", svc.catalogsFile, err)
}
err = json.Unmarshal(b, &catalogs)
if err != nil {
return nil, fmt.Errorf("error in JSON marshal: %w", err)
}
// We need to make sure that sub-controls have the category_name and category_catalog_id of their parents set, otherwise we are failing a constraint.
for _, catalog := range catalogs {
for _, category := range catalog.Categories {
for _, control := range category.Controls {
for _, sub := range control.Controls {
sub.CategoryName = category.Name
sub.CategoryCatalogId = catalog.Id
}
}
}
}
return
}