frostfs-node/pkg/services/control/server/policy_engine.go
Anton Nikiforov 9916598dfb [#922] control: Extend api with ListOverrideDefinedTargets
Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>
2024-02-02 12:09:51 +00:00

219 lines
6.8 KiB
Go

package control
import (
"context"
"errors"
"fmt"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/services/control/server/ape"
apechain "git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
func apeTarget(chainTarget *control.ChainTarget) (engine.Target, error) {
switch chainTarget.GetType() {
case control.ChainTarget_CONTAINER:
return engine.ContainerTarget(chainTarget.GetName()), nil
case control.ChainTarget_NAMESPACE:
return engine.NamespaceTarget(chainTarget.GetName()), nil
default:
}
return engine.Target{}, status.Error(codes.InvalidArgument,
fmt.Errorf("target type is not supported: %s", chainTarget.GetType().String()).Error())
}
func controlTarget(chainTarget *engine.Target) (control.ChainTarget, error) {
switch chainTarget.Type {
case engine.Container:
return control.ChainTarget{
Name: chainTarget.Name,
Type: control.ChainTarget_CONTAINER,
}, nil
case engine.Namespace:
// If namespace is empty, we take it for root namespace.
nm := chainTarget.Name
if nm == "root" {
nm = ""
}
return control.ChainTarget{
Name: nm,
Type: control.ChainTarget_NAMESPACE,
}, nil
default:
}
return control.ChainTarget{}, status.Error(codes.InvalidArgument,
fmt.Errorf("target type is not supported: %c", chainTarget.Type).Error())
}
func (s *Server) AddChainLocalOverride(_ context.Context, req *control.AddChainLocalOverrideRequest) (*control.AddChainLocalOverrideResponse, error) {
if err := s.isValidRequest(req); err != nil {
return nil, status.Error(codes.PermissionDenied, err.Error())
}
var chain apechain.Chain
if err := chain.DecodeBytes(req.GetBody().GetChain()); err != nil {
return nil, status.Error(codes.InvalidArgument, err.Error())
}
for _, rule := range chain.Rules {
for _, name := range rule.Resources.Names {
if err := ape.ValidateResourceName(name); err != nil {
return nil, status.Error(codes.InvalidArgument, fmt.Errorf("invalid resource: %w", err).Error())
}
}
}
s.apeChainCounter.Add(1)
// TODO (aarifullin): the such chain id is not well-designed yet.
if len(chain.ID) == 0 {
chain.ID = apechain.ID(fmt.Sprintf("%s:%d", apechain.Ingress, s.apeChainCounter.Load()))
}
target, err := apeTarget(req.GetBody().GetTarget())
if err != nil {
return nil, err
}
if _, err = s.localOverrideStorage.LocalStorage().AddOverride(apechain.Ingress, target, &chain); err != nil {
return nil, status.Error(getCodeByLocalStorageErr(err), err.Error())
}
resp := &control.AddChainLocalOverrideResponse{
Body: &control.AddChainLocalOverrideResponse_Body{
ChainId: []byte(chain.ID),
},
}
err = SignMessage(s.key, resp)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return resp, nil
}
func (s *Server) GetChainLocalOverride(_ context.Context, req *control.GetChainLocalOverrideRequest) (*control.GetChainLocalOverrideResponse, error) {
if err := s.isValidRequest(req); err != nil {
return nil, status.Error(codes.PermissionDenied, err.Error())
}
target, err := apeTarget(req.GetBody().GetTarget())
if err != nil {
return nil, err
}
chain, err := s.localOverrideStorage.LocalStorage().GetOverride(apechain.Ingress, target, apechain.ID(req.GetBody().GetChainId()))
if err != nil {
return nil, status.Error(getCodeByLocalStorageErr(err), err.Error())
}
resp := &control.GetChainLocalOverrideResponse{
Body: &control.GetChainLocalOverrideResponse_Body{
Chain: chain.Bytes(),
},
}
err = SignMessage(s.key, resp)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return resp, nil
}
func (s *Server) ListChainLocalOverrides(_ context.Context, req *control.ListChainLocalOverridesRequest) (*control.ListChainLocalOverridesResponse, error) {
if err := s.isValidRequest(req); err != nil {
return nil, status.Error(codes.PermissionDenied, err.Error())
}
target, err := apeTarget(req.GetBody().GetTarget())
if err != nil {
return nil, err
}
chains, err := s.localOverrideStorage.LocalStorage().ListOverrides(apechain.Ingress, target)
if err != nil {
return nil, status.Error(getCodeByLocalStorageErr(err), err.Error())
}
serializedChains := make([][]byte, 0, len(chains))
for _, chain := range chains {
serializedChains = append(serializedChains, chain.Bytes())
}
resp := &control.ListChainLocalOverridesResponse{
Body: &control.ListChainLocalOverridesResponse_Body{
Chains: serializedChains,
},
}
err = SignMessage(s.key, resp)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return resp, nil
}
func (s *Server) RemoveChainLocalOverride(_ context.Context, req *control.RemoveChainLocalOverrideRequest) (*control.RemoveChainLocalOverrideResponse, error) {
if err := s.isValidRequest(req); err != nil {
return nil, status.Error(codes.PermissionDenied, err.Error())
}
target, err := apeTarget(req.GetBody().GetTarget())
if err != nil {
return nil, err
}
removed := true
if err = s.localOverrideStorage.LocalStorage().RemoveOverride(apechain.Ingress, target, apechain.ID(req.GetBody().GetChainId())); err != nil {
code := getCodeByLocalStorageErr(err)
if code == codes.NotFound {
removed = false
} else {
return nil, status.Error(code, err.Error())
}
}
resp := &control.RemoveChainLocalOverrideResponse{
Body: &control.RemoveChainLocalOverrideResponse_Body{
Removed: removed,
},
}
err = SignMessage(s.key, resp)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return resp, nil
}
func (s *Server) ListTargetsLocalOverrides(_ context.Context, req *control.ListTargetsLocalOverridesRequest) (*control.ListTargetsLocalOverridesResponse, error) {
if err := s.isValidRequest(req); err != nil {
return nil, status.Error(codes.PermissionDenied, err.Error())
}
apeChainName := apechain.Name(req.GetBody().GetChainName())
apeTargets, err := s.localOverrideStorage.LocalStorage().ListOverrideDefinedTargets(apeChainName)
if err != nil {
return nil, status.Error(getCodeByLocalStorageErr(err), err.Error())
}
targets := make([]*control.ChainTarget, 0, len(apeTargets))
for i := range apeTargets {
target, err := controlTarget(&apeTargets[i])
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
targets = append(targets, &target)
}
resp := &control.ListTargetsLocalOverridesResponse{
Body: &control.ListTargetsLocalOverridesResponse_Body{
Targets: targets,
},
}
err = SignMessage(s.key, resp)
if err != nil {
return nil, status.Error(codes.Internal, err.Error())
}
return resp, nil
}
func getCodeByLocalStorageErr(err error) codes.Code {
if errors.Is(err, engine.ErrChainNotFound) || errors.Is(err, engine.ErrChainNameNotFound) {
return codes.NotFound
}
return codes.Internal
}