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cloud_service.go
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cloud_service.go
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// Copyright 2021-2022 Fraunhofer AISEC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// $$\ $$\ $$\ $$\
// $$ | $$ |\__| $$ |
// $$$$$$$\ $$ | $$$$$$\ $$\ $$\ $$$$$$$ |$$\ $$$$$$\ $$$$$$\ $$$$$$\
// $$ _____|$$ |$$ __$$\ $$ | $$ |$$ __$$ |$$ |\_$$ _| $$ __$$\ $$ __$$\
// $$ / $$ |$$ / $$ |$$ | $$ |$$ / $$ |$$ | $$ | $$ / $$ |$$ | \__|
// $$ | $$ |$$ | $$ |$$ | $$ |$$ | $$ |$$ | $$ |$$\ $$ | $$ |$$ |
// \$$$$$$\ $$ |\$$$$$ |\$$$$$ |\$$$$$$ |$$ | \$$$ |\$$$$$ |$$ |
// \_______|\__| \______/ \______/ \_______|\__| \____/ \______/ \__|
//
// This file is part of Clouditor Community Edition.
package orchestrator
import (
"context"
"errors"
"fmt"
"clouditor.io/clouditor/api/assessment"
"clouditor.io/clouditor/api/discovery"
"clouditor.io/clouditor/api/evidence"
"clouditor.io/clouditor/api/orchestrator"
"clouditor.io/clouditor/internal/logging"
"clouditor.io/clouditor/persistence"
"clouditor.io/clouditor/service"
"github.com/google/uuid"
"github.com/sirupsen/logrus"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/types/known/emptypb"
"google.golang.org/protobuf/types/known/timestamppb"
)
const (
DefaultTargetCloudServiceId = "00000000-0000-0000-0000-000000000000"
DefaultTargetCloudServiceName = "default"
DefaultTargetCloudServiceDescription = "The default target cloud service"
)
func (s *Service) RegisterCloudService(ctx context.Context, req *orchestrator.RegisterCloudServiceRequest) (res *orchestrator.CloudService, err error) {
// Validate request
err = service.ValidateRequest(req)
if err != nil {
return nil, err
}
res = new(orchestrator.CloudService)
// Generate a new ID
res.Id = uuid.NewString()
res.Name = req.CloudService.Name
res.Description = req.CloudService.Description
now := timestamppb.Now()
res.CreatedAt = now
res.UpdatedAt = now
res.Metadata = &orchestrator.CloudService_Metadata{}
if req.CloudService.Metadata != nil {
res.Metadata.Labels = req.CloudService.Metadata.Labels
res.Metadata.Icon = req.CloudService.Metadata.Icon
}
// Persist the service in our database
err = s.storage.Create(res)
if err != nil {
return nil, status.Errorf(codes.Internal, "could not add cloud service to the database: %v", err)
}
go s.informHooks(ctx, res, nil)
logging.LogRequest(log, logrus.DebugLevel, logging.Register, req)
return
}
// ListCloudServices implements method for OrchestratorServer interface for listing all cloud services
func (svc *Service) ListCloudServices(ctx context.Context, req *orchestrator.ListCloudServicesRequest) (
res *orchestrator.ListCloudServicesResponse, err error) {
var conds []any
var allowed []string
var all bool
// Validate request
err = service.ValidateRequest(req)
if err != nil {
return nil, err
}
res = new(orchestrator.ListCloudServicesResponse)
// Retrieve list of allowed cloud service according to our authorization strategy. No need to specify any conditions
// to our storage request, if we are allowed to see all cloud services.
all, allowed = svc.authz.AllowedCloudServices(ctx)
if !all {
conds = append(conds, allowed)
}
// Paginate the cloud services according to the request
res.Services, res.NextPageToken, err = service.PaginateStorage[*orchestrator.CloudService](req, svc.storage,
service.DefaultPaginationOpts, conds...)
if err != nil {
return nil, status.Errorf(codes.Internal, "could not paginate results: %v", err)
}
return
}
// GetCloudService implements method for OrchestratorServer interface for getting a cloud service with provided id
func (s *Service) GetCloudService(ctx context.Context, req *orchestrator.GetCloudServiceRequest) (response *orchestrator.CloudService, err error) {
// Validate request
err = service.ValidateRequest(req)
if err != nil {
return nil, err
}
// Check, if this request has access to the cloud service according to our authorization strategy.
if !s.authz.CheckAccess(ctx, service.AccessRead, req) {
return nil, service.ErrPermissionDenied
}
response = new(orchestrator.CloudService)
err = s.storage.Get(response, "Id = ?", req.CloudServiceId)
if errors.Is(err, persistence.ErrRecordNotFound) {
return nil, status.Errorf(codes.NotFound, "service not found")
} else if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %s", err)
}
return response, nil
}
// UpdateCloudService implements method for OrchestratorServer interface for updating a cloud service
func (s *Service) UpdateCloudService(ctx context.Context, req *orchestrator.UpdateCloudServiceRequest) (res *orchestrator.CloudService, err error) {
// Validate request
err = service.ValidateRequest(req)
if err != nil {
return nil, err
}
// Check, if this request has access to the cloud service according to our authorization strategy.
if !s.authz.CheckAccess(ctx, service.AccessUpdate, req) {
return nil, service.ErrPermissionDenied
}
count, err := s.storage.Count(req.CloudService, "id = ?", req.CloudService.Id)
if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %s", err)
}
if count == 0 {
return nil, status.Error(codes.NotFound, "service not found")
}
// Add id to response because otherwise it will overwrite ID with empty string
res = req.CloudService
res.UpdatedAt = timestamppb.Now()
// Since UpdateCloudService is a PUT method, we use storage.Save
err = s.storage.Save(res, "Id = ?", req.CloudService.Id)
if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %v", err)
}
go s.informHooks(ctx, res, nil)
logging.LogRequest(log, logrus.DebugLevel, logging.Update, req)
return
}
// RemoveCloudService implements method for OrchestratorServer interface for removing a cloud service
func (s *Service) RemoveCloudService(ctx context.Context, req *orchestrator.RemoveCloudServiceRequest) (response *emptypb.Empty, err error) {
// Validate request
err = service.ValidateRequest(req)
if err != nil {
return nil, err
}
// Check, if this request has access to the cloud service according to our authorization strategy.
if !s.authz.CheckAccess(ctx, service.AccessDelete, req) {
return nil, service.ErrPermissionDenied
}
err = s.storage.Delete(&orchestrator.CloudService{Id: req.CloudServiceId})
if errors.Is(err, persistence.ErrRecordNotFound) {
return nil, status.Errorf(codes.NotFound, "service not found")
} else if err != nil {
return nil, status.Errorf(codes.Internal, "database error: %s", err)
}
go s.informHooks(ctx, nil, nil)
logging.LogRequest(log, logrus.DebugLevel, logging.Remove, req)
return &emptypb.Empty{}, nil
}
// GetCloudServiceStatistics implements method for OrchestratorServer interface for retrieving cloud service statistics
func (s *Service) GetCloudServiceStatistics(ctx context.Context, req *orchestrator.GetCloudServiceStatisticsRequest) (response *orchestrator.GetCloudServiceStatisticsResponse, err error) {
// Validate request
err = service.ValidateRequest(req)
if err != nil {
return nil, err
}
// Check, if this request has access to the cloud service according to our authorization strategy.
if !s.authz.CheckAccess(ctx, service.AccessRead, req) {
return nil, service.ErrPermissionDenied
}
response = &orchestrator.GetCloudServiceStatisticsResponse{}
// Get number of selected catalogs
cloudService := new(orchestrator.CloudService)
err = s.storage.Get(cloudService, "Id = ?", req.CloudServiceId)
if errors.Is(err, persistence.ErrRecordNotFound) {
return nil, status.Errorf(codes.NotFound, "service not found")
} else if err != nil {
return nil, status.Errorf(codes.Internal, "database error getting cloud service: %s", err)
}
response.NumberOfSelectedCatalogs = int64(len(cloudService.CatalogsInScope))
// Get number of discovered resources
resources := new(discovery.Resource)
count, err := s.storage.Count(resources, "cloud_service_id = ?", req.CloudServiceId)
if err != nil {
return nil, status.Errorf(codes.Internal, "database error counting resources: %s", err)
}
response.NumberOfDiscoveredResources = count
// Get number of evidences
ev := new(evidence.Evidence)
count, err = s.storage.Count(ev, "cloud_service_id = ?", req.CloudServiceId)
if err != nil {
return nil, status.Errorf(codes.Internal, "database error counting evidences: %s", err)
}
response.NumberOfEvidences = count
// Get number of assessment results
res := new(assessment.AssessmentResult)
count, err = s.storage.Count(res, "cloud_service_id = ?", req.CloudServiceId)
if err != nil {
return nil, status.Errorf(codes.Internal, "database error counting assessment results: %s", err)
}
response.NumberOfAssessmentResults = count
return response, nil
}
// CreateDefaultTargetCloudService creates a new "default" target cloud services,
// if no target service exists in the database.
//
// If a new target cloud service was created, it will be returned.
func (s *Service) CreateDefaultTargetCloudService() (service *orchestrator.CloudService, err error) {
log.Infof("Trying to create new default target cloud service...")
count, err := s.storage.Count(service)
if err != nil {
return nil, fmt.Errorf("storage error: %w", err)
}
if count == 0 {
now := timestamppb.Now()
// Create a default target cloud service
service =
&orchestrator.CloudService{
Id: DefaultTargetCloudServiceId,
Name: DefaultTargetCloudServiceName,
Description: DefaultTargetCloudServiceDescription,
CreatedAt: now,
UpdatedAt: now,
}
// Save it in the database
err = s.storage.Create(service)
if err != nil {
return nil, fmt.Errorf("storage error: %w", err)
} else {
log.Infof("Created new default target cloud service: %s", service.Id)
}
} else {
log.Infof("Default target cloud service already exist.")
}
return
}