consul/agent/grpc-external/services/resource/list.go

85 lines
2.0 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package resource
import (
"context"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"github.com/hashicorp/consul/acl"
"github.com/hashicorp/consul/internal/storage"
"github.com/hashicorp/consul/proto-public/pbresource"
)
func (s *Server) List(ctx context.Context, req *pbresource.ListRequest) (*pbresource.ListResponse, error) {
if err := validateListRequest(req); err != nil {
return nil, err
}
// check type
reg, err := s.resolveType(req.Type)
if err != nil {
return nil, err
}
authz, err := s.getAuthorizer(tokenFromContext(ctx))
if err != nil {
return nil, err
}
// check acls
err = reg.ACLs.List(authz, req.Tenancy)
switch {
case acl.IsErrPermissionDenied(err):
return nil, status.Error(codes.PermissionDenied, err.Error())
case err != nil:
return nil, status.Errorf(codes.Internal, "failed list acl: %v", err)
}
resources, err := s.Backend.List(
ctx,
readConsistencyFrom(ctx),
storage.UnversionedTypeFrom(req.Type),
req.Tenancy,
req.NamePrefix,
)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed list: %v", err)
}
result := make([]*pbresource.Resource, 0)
for _, resource := range resources {
// filter out non-matching GroupVersion
if resource.Id.Type.GroupVersion != req.Type.GroupVersion {
continue
}
// filter out items that don't pass read ACLs
err = reg.ACLs.Read(authz, resource.Id)
switch {
case acl.IsErrPermissionDenied(err):
continue
case err != nil:
return nil, status.Errorf(codes.Internal, "failed read acl: %v", err)
}
result = append(result, resource)
}
return &pbresource.ListResponse{Resources: result}, nil
}
func validateListRequest(req *pbresource.ListRequest) error {
var field string
switch {
case req.Type == nil:
field = "type"
case req.Tenancy == nil:
field = "tenancy"
default:
return nil
}
return status.Errorf(codes.InvalidArgument, "%s is required", field)
}