go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/client/cmd/cloudkms/download.go (about)

     1  // Copyright 2020 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 main
    16  
    17  import (
    18  	"context"
    19  
    20  	"github.com/maruel/subcommands"
    21  
    22  	cloudkms "cloud.google.com/go/kms/apiv1"
    23  	"cloud.google.com/go/kms/apiv1/kmspb"
    24  
    25  	"go.chromium.org/luci/auth"
    26  	"go.chromium.org/luci/common/logging"
    27  )
    28  
    29  func doDownload(ctx context.Context, client *cloudkms.KeyManagementClient, keyPath string) ([]byte, error) {
    30  	resp, err := client.GetPublicKey(ctx, &kmspb.GetPublicKeyRequest{Name: keyPath})
    31  	if err != nil {
    32  		logging.Errorf(ctx, "Error while making request")
    33  		return nil, err
    34  	}
    35  
    36  	return []byte(resp.Pem), nil
    37  }
    38  
    39  func cmdDownload(authOpts auth.Options) *subcommands.Command {
    40  	return &subcommands.Command{
    41  		UsageLine: "download <options> <path>",
    42  		ShortDesc: "downloads public keys from Cloud KMS",
    43  		LongDesc: `Downloads a public key from Cloud KMS.
    44  
    45  <path> refers to the path to the crypto key. e.g.
    46  
    47  projects/<project>/locations/<location>/keyRings/<keyRing>/cryptoKeys/<cryptoKey>/cryptoKeyVersions/<version>
    48  
    49  -output will be the public key`,
    50  		CommandRun: func() subcommands.CommandRun {
    51  			c := downloadRun{doDownload: doDownload}
    52  			c.Init(authOpts)
    53  			return &c
    54  		},
    55  	}
    56  }