go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/analysis/internal/bugs/monorail/migration/decorators.go (about)

     1  // Copyright 2024 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package migration
    16  
    17  import (
    18  	"context"
    19  
    20  	"github.com/golang/protobuf/proto"
    21  	"google.golang.org/grpc/codes"
    22  
    23  	"go.chromium.org/luci/common/errors"
    24  	"go.chromium.org/luci/grpc/appstatus"
    25  	"go.chromium.org/luci/server/auth"
    26  )
    27  
    28  const luciAnalysisAdminGroup = "service-luci-analysis-admins"
    29  
    30  func checkAllowedAdminPrelude(ctx context.Context, methodName string, req proto.Message) (context.Context, error) {
    31  	if err := checkAllowed(ctx, luciAnalysisAdminGroup); err != nil {
    32  		return ctx, err
    33  	}
    34  	return ctx, nil
    35  }
    36  
    37  // Logs and converts the errors to GRPC type errors.
    38  func gRPCifyAndLogPostlude(ctx context.Context, methodName string, rsp proto.Message, err error) error {
    39  	return appstatus.GRPCifyAndLog(ctx, err)
    40  }
    41  
    42  func checkAllowed(ctx context.Context, allowedGroup string) error {
    43  	switch yes, err := auth.IsMember(ctx, allowedGroup); {
    44  	case err != nil:
    45  		return errors.Annotate(err, "failed to check ACL").Err()
    46  	case !yes:
    47  		return appstatus.Errorf(codes.PermissionDenied, "not a member of %s", allowedGroup)
    48  	default:
    49  		return nil
    50  	}
    51  }