[#922] control: Extend api with ListOverrideDefinedTargets

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

pkg/services/control/rpc.go

@@ -25,6 +25,7 @@ const (
 	rpcListChainLocalOverrides   = "ListChainLocalOverrides"
 	rpcRemoveChainLocalOverride  = "RemoveChainLocalOverride"
 	rpcSealWriteCache            = "SealWriteCache"
+	rpcListTargetsLocalOverrides = "ListTargetsLocalOverrides"
 )
 
 // HealthCheck executes ControlService.HealthCheck RPC.
@@ -240,6 +241,19 @@ func ListChainLocalOverrides(cli *client.Client, req *ListChainLocalOverridesReq
 	return wResp.message, nil
 }
 
+// ListTargetsLocalOverrides executes ControlService.ListTargetsLocalOverrides RPC.
+func ListTargetsLocalOverrides(cli *client.Client, req *ListTargetsLocalOverridesRequest, opts ...client.CallOption) (*ListTargetsLocalOverridesResponse, error) {
+	wResp := newResponseWrapper[ListTargetsLocalOverridesResponse]()
+	wReq := &requestWrapper{m: req}
+
+	err := client.SendUnary(cli, common.CallMethodInfoUnary(serviceName, rpcListTargetsLocalOverrides), wReq, wResp, opts...)
+	if err != nil {
+		return nil, err
+	}
+
+	return wResp.message, nil
+}
+
 // RemoveChainLocalOverride executes ControlService.RemoveChainLocalOverride RPC.
 func GetChainLocalOverride(cli *client.Client, req *GetChainLocalOverrideRequest, opts ...client.CallOption) (*GetChainLocalOverrideResponse, error) {
 	wResp := newResponseWrapper[GetChainLocalOverrideResponse]()

pkg/services/control/server/policy_engine.go

@@ -25,6 +25,29 @@ func apeTarget(chainTarget *control.ChainTarget) (engine.Target, error) {
 		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())
@@ -157,6 +180,37 @@ func (s *Server) RemoveChainLocalOverride(_ context.Context, req *control.Remove
 	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

pkg/services/control/service.proto

@@ -57,6 +57,9 @@ service ControlService {
     // Remove local access policy engine overrides stored in the node by chaind id.
     rpc RemoveChainLocalOverride (RemoveChainLocalOverrideRequest) returns (RemoveChainLocalOverrideResponse);
 
+    // List targets of the local APE overrides stored in the node.
+    rpc ListTargetsLocalOverrides (ListTargetsLocalOverridesRequest) returns (ListTargetsLocalOverridesResponse);
+
     // Flush objects from write-cache and move it to degraded read only mode.
     rpc SealWriteCache(SealWriteCacheRequest) returns (SealWriteCacheResponse);
 }
@@ -505,6 +508,30 @@ message ListChainLocalOverridesResponse {
     Signature signature = 2;
 }
 
+// ListTargetsLocalOverrides request.
+message ListTargetsLocalOverridesRequest {
+    message Body {
+        // Target for which the overrides are applied.
+        string chainName = 1;
+    }
+
+    Body body = 1;
+
+    Signature signature = 2;
+}
+
+// ListTargetsLocalOverrides response.
+message ListTargetsLocalOverridesResponse {
+    message Body {
+        // The list of chain targets.
+        repeated ChainTarget targets = 1;
+    }
+
+    Body body = 1;
+
+    Signature signature = 2;
+}
+
 message RemoveChainLocalOverrideRequest {
     message Body {
         // Target for which the overrides are applied.