Recuperare una chiave HMAC

Recupera una chiave HMAC con il relativo ID di accesso.

Per saperne di più

Per la documentazione dettagliata che include questo esempio di codice, vedi quanto segue:

Gestire le chiavi HMAC per gli account di servizio

Esempio di codice

C++

Per maggiori informazioni, consulta la documentazione di riferimento dell'API C++ di Cloud Storage.

Per eseguire l'autenticazione in Cloud Storage, configura Credenziali predefinite dell'applicazione. Per maggiori informazioni, consulta Configurare l'autenticazione per un ambiente di sviluppo locale.

namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& access_id) {
  StatusOr<gcs::HmacKeyMetadata> hmac_key = client.GetHmacKey(access_id);
  if (!hmac_key) throw std::move(hmac_key).status();

  std::cout << "The HMAC key metadata is: " << *hmac_key << "\n";
}

C#

Per maggiori informazioni, consulta la documentazione di riferimento dell'API C# di Cloud Storage.


using Google.Apis.Storage.v1.Data;
using Google.Cloud.Storage.V1;
using System;

public class GetHmacKeySample
{
    public HmacKeyMetadata GetHmacKey(
        string projectId = "your-project-id",
        string accessId = "your-access-id")
    {
        var storage = StorageClient.Create();
        var metadata = storage.GetHmacKey(projectId, accessId);

        Console.WriteLine("The HMAC key metadata is:");
        Console.WriteLine($"ID: {metadata.Id}");
        Console.WriteLine($"Access ID: {metadata.AccessId}");
        Console.WriteLine($"Project ID: {metadata.ProjectId}");
        Console.WriteLine($"Service Account Email: {metadata.ServiceAccountEmail}");
        Console.WriteLine($"State: {metadata.State}");
        Console.WriteLine($"Time Created: {metadata.TimeCreated}");
        Console.WriteLine($"Time Updated: {metadata.Updated}");
        Console.WriteLine($"ETag: {metadata.ETag}");
        return metadata;
    }
}

Go

Per maggiori informazioni, consulta la documentazione di riferimento dell'API Go di Cloud Storage.

import (
	"context"
	"fmt"
	"io"
	"time"

	"cloud.google.com/go/storage"
)

// getHMACKey retrieves the HMACKeyMetadata with the given access id.
func getHMACKey(w io.Writer, accessID string, projectID string) (*storage.HMACKey, error) {
	ctx := context.Background()

	// Initialize client.
	client, err := storage.NewClient(ctx)
	if err != nil {
		return nil, fmt.Errorf("storage.NewClient: %w", err)
	}
	defer client.Close() // Closing the client safely cleans up background resources.

	handle := client.HMACKeyHandle(projectID, accessID)
	ctx, cancel := context.WithTimeout(ctx, time.Minute)
	defer cancel()
	key, err := handle.Get(ctx)
	if err != nil {
		return nil, fmt.Errorf("Get: %w", err)
	}

	fmt.Fprintln(w, "The HMAC key metadata is:")
	fmt.Fprintf(w, "%+v", key)
	return key, nil
}

Java

Per maggiori informazioni, consulta la documentazione di riferimento dell'API Java di Cloud Storage.


import com.google.cloud.storage.HmacKey;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageException;
import com.google.cloud.storage.StorageOptions;
import java.util.Date;

public class GetHmacKey {
  public static void getHmacKey(String accessId, String projectId) throws StorageException {
    // The access ID of the HMAC key.
    // String accessId = "GOOG0234230X00";

    // The ID of the project to which the service account belongs.
    // String projectId = "project-id";

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();

    HmacKey.HmacKeyMetadata metadata =
        storage.getHmacKey(accessId, Storage.GetHmacKeyOption.projectId(projectId));

    System.out.println("The HMAC key metadata is:");
    System.out.println("ID: " + metadata.getId());
    System.out.println("Access ID: " + metadata.getAccessId());
    System.out.println("Project ID: " + metadata.getProjectId());
    System.out.println("Service Account Email: " + metadata.getServiceAccount().getEmail());
    System.out.println("State: " + metadata.getState().toString());
    System.out.println("Time Created: " + new Date(metadata.getCreateTime()).toString());
    System.out.println("Time Updated: " + new Date(metadata.getUpdateTime()).toString());
    System.out.println("ETag: " + metadata.getEtag());
  }
}

Node.js

Per maggiori informazioni, consulta la documentazione di riferimento dell'API Node.js di Cloud Storage.

/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// The access ID of the HMAC key
// const hmacKeyAccessId = 'GOOG0234230X00';

// The ID of the project to which the service account belongs
// const projectId = 'project-id';

// Imports the Google Cloud client library
const {Storage} = require('@google-cloud/storage');

// Creates a client
const storage = new Storage();

// Get HMAC SA Key Metadata
async function getHmacKey() {
  const hmacKey = storage.hmacKey(hmacKeyAccessId, {projectId});

  // Populate the hmacKey object with metadata from server.
  await hmacKey.getMetadata();

  console.log('The HMAC key metadata is:');
  for (const [key, value] of Object.entries(hmacKey.metadata)) {
    console.log(`${key}: ${value}`);
  }
}

PHP

Per maggiori informazioni, consulta la documentazione di riferimento dell'API PHP di Cloud Storage.

use Google\Cloud\Storage\StorageClient;

/**
 * Get an HMAC key.
 *
 * @param string $projectId The ID of your Google Cloud Platform project.
 *        (e.g. 'my-project-id')
 * @param string $accessId Access ID for an HMAC key. (e.g. 'GOOG0234230X00')
 */
function get_hmac_key(string $projectId, string $accessId): void
{
    $storage = new StorageClient();
    $hmacKey = $storage->hmacKey($accessId, $projectId);

    printf('HMAC key Metadata: %s' . PHP_EOL, print_r($hmacKey->info(), true));
}

Python

Per maggiori informazioni, consulta la documentazione di riferimento dell'API Python di Cloud Storage.

from google.cloud import storage

def get_key(access_id, project_id):
    """
    Retrieve the HMACKeyMetadata with the given access id.
    """
    # project_id = "Your Google Cloud project ID"
    # access_id = "ID of an HMAC key"

    storage_client = storage.Client(project=project_id)

    hmac_key = storage_client.get_hmac_key_metadata(
        access_id, project_id=project_id
    )

    print("The HMAC key metadata is:")
    print(f"Service Account Email: {hmac_key.service_account_email}")
    print(f"Key ID: {hmac_key.id}")
    print(f"Access ID: {hmac_key.access_id}")
    print(f"Project ID: {hmac_key.project}")
    print(f"State: {hmac_key.state}")
    print(f"Created At: {hmac_key.time_created}")
    print(f"Updated At: {hmac_key.updated}")
    print(f"Etag: {hmac_key.etag}")
    return hmac_key

Ruby

Per maggiori informazioni, consulta la documentazione di riferimento dell'API Ruby di Cloud Storage.

def get_hmac_key access_id:
  # The access ID of the HMAC key
  # access_id = "GOOG0234230X00"

  require "google/cloud/storage"

  storage = Google::Cloud::Storage.new

  # By default Storage#hmac_keys uses the Storage client project_id
  hmac_key = storage.hmac_key access_id

  puts "The HMAC key metadata is:"
  puts "Key ID:                #{hmac_key.id}"
  puts "Service Account Email: #{hmac_key.service_account_email}"
  puts "Access ID:             #{hmac_key.access_id}"
  puts "Project ID:            #{hmac_key.project_id}"
  puts "Active:                #{hmac_key.active?}"
  puts "Created At:            #{hmac_key.created_at}"
  puts "Updated At:            #{hmac_key.updated_at}"
  puts "Etag:                  #{hmac_key.etag}"
end

Passaggi successivi

Per cercare e filtrare esempi di codice per altri prodotti Google Cloud, consulta il browser di esempio Google Cloud.