Inhaber aus einem Bucket entfernen

Inhaberzugriff auf einen Cloud Storage-Bucket entfernen.

Weitere Informationen

Eine ausführliche Dokumentation, die dieses Codebeispiel enthält, finden Sie hier:

ACLs (Access Control Lists) erstellen und verwalten

Codebeispiel

C++

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage C++ API.

Richten Sie die Standardanmeldedaten für Anwendungen ein, um sich bei Cloud Storage zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

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namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name,
   std::string const& entity) {
  StatusOr<gcs::BucketMetadata> original_metadata =
      client.GetBucketMetadata(bucket_name, gcs::Projection::Full());
  if (!original_metadata) throw std::move(original_metadata).status();

  std::vector<gcs::BucketAccessControl> original_acl =
      original_metadata->acl();
  auto it = std::find_if(original_acl.begin(), original_acl.end(),
                         [entity](gcs::BucketAccessControl const& entry) {
                           return entry.entity() == entity &&
                                  entry.role() ==
                                      gcs::BucketAccessControl::ROLE_OWNER();
                         });

  if (it == original_acl.end()) {
    std::cout << "Could not find entity " << entity
              << " with role OWNER in bucket " << bucket_name << "\n";
    return;
  }

  gcs::BucketAccessControl owner = *it;
  google::cloud::Status status =
      client.DeleteBucketAcl(bucket_name, owner.entity());

  if (!status.ok()) throw std::runtime_error(status.message());
  std::cout << "Deleted ACL entry for " << owner.entity() << " in bucket "
            << bucket_name << "\n";
}

C#

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage C# API.

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using Google.Cloud.Storage.V1;
using System;
using System.Linq;

public class RemoveBucketOwnerSample
{
    public void RemoveBucketOwner(
        string bucketName = "your-unique-bucket-name",
        string userEmail = "dev@iam.gserviceaccount.com")
    {
        var storage = StorageClient.Create();
        var bucket = storage.GetBucket(bucketName, new GetBucketOptions { Projection = Projection.Full });
        if (bucket.Acl == null)
        {
            Console.WriteLine("No owner to remove");
        }
        else
        {
            bucket.Acl = bucket.Acl.Where(acl => !(acl.Entity == $"user-{userEmail}" && acl.Role == "OWNER")).ToList();
            var updatedBucket = storage.UpdateBucket(bucket);
            Console.WriteLine($"Removed user {userEmail} from bucket {bucketName}.");
        }
    }
}

Go

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage Go API.

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import (
	"context"
	"fmt"

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

// removeBucketOwner removes ACL from a bucket.
func removeBucketOwner(bucket string, entity storage.ACLEntity) error {
	// bucket := "bucket-name"
	// entity := storage.AllUsers
	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("storage.NewClient: %w", err)
	}
	defer client.Close()

	acl := client.Bucket(bucket).ACL()
	if err := acl.Delete(ctx, entity); err != nil {
		return fmt.Errorf("ACLHandle.Delete: %w", err)
	}
	return nil
}

Java

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage Java API.

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import com.google.cloud.storage.Acl.User;
import com.google.cloud.storage.Bucket;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;

public class RemoveBucketOwner {

  public static void removeBucketOwner(String projectId, String bucketName, String userEmail) {

    // The ID of your GCP project
    // String projectId = "your-project-id";

    // The ID of your GCS bucket
    // String bucketName = "your-unique-bucket-name";

    // Email of the user you wish to remove as an owner
    // String userEmail = "someuser@domain.com"

    Storage storage = StorageOptions.newBuilder().setProjectId(projectId).build().getService();
    Bucket bucket = storage.get(bucketName);
    User ownerToRemove = new User(userEmail);

    boolean success = bucket.deleteAcl(ownerToRemove);
    if (success) {
      System.out.println("Removed user " + userEmail + " as an owner on " + bucketName);
    } else {
      System.out.println("User " + userEmail + " was not found");
    }
  }
}

Node.js

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage Node.js API.

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/**
 * TODO(developer): Uncomment the following lines before running the sample.
 */
// The ID of your GCS bucket
// const bucketName = 'your-unique-bucket-name';

// The email address of the user to remove
// const userEmail = 'user-email-to-remove';

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

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

async function removeBucketOwner() {
  // Removes the user from the access control list of the bucket. You can use
  // deleteAllUsers(), deleteDomain(), deleteProject(), deleteGroup(), and
  // deleteAllAuthenticatedUsers() to remove access for different types of entities.
  await storage.bucket(bucketName).acl.owners.deleteUser(userEmail);

  console.log(`Removed user ${userEmail} from bucket ${bucketName}.`);
}

removeBucketOwner().catch(console.error);

PHP

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage PHP API.

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use Google\Cloud\Storage\StorageClient;

/**
 * Delete an entity from a bucket's default ACL.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 * @param string $entity The entity for which to update access controls.
 *        (e.g. 'user-example@domain.com')
 */
function delete_bucket_acl(string $bucketName, string $entity): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $acl = $bucket->acl();
    $acl->delete($entity);
    printf('Deleted %s from gs://%s ACL' . PHP_EOL, $entity, $bucketName);
}

Python

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage Python API.

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from google.cloud import storage

def remove_bucket_owner(bucket_name, user_email):
    """Removes a user from the access control list of the given bucket."""
    # bucket_name = "your-bucket-name"
    # user_email = "name@example.com"

    storage_client = storage.Client()
    bucket = storage_client.bucket(bucket_name)

    # Reload fetches the current ACL from Cloud Storage.
    bucket.acl.reload()

    # You can also use `group`, `domain`, `all_authenticated` and `all` to
    # remove access for different types of entities.
    bucket.acl.user(user_email).revoke_read()
    bucket.acl.user(user_email).revoke_write()
    bucket.acl.user(user_email).revoke_owner()
    bucket.acl.save()

    print(f"Removed user {user_email} from bucket {bucket_name}.")

Ruby

Weitere Informationen finden Sie in der Referenzdokumentation zur Cloud Storage Ruby API.

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# project_id  = "Your Google Cloud project ID"
# The ID of your GCS bucket
# bucket_name = "your-unique-bucket-name"
# email       = "Google Cloud Storage ACL Entity email"

require "google/cloud/storage"

storage = Google::Cloud::Storage.new
bucket  = storage.bucket bucket_name

bucket.acl.delete email

puts "Removed ACL permissions for #{email} from #{bucket_name}"

Nächste Schritte

Informationen zum Suchen und Filtern von Codebeispielen für andere Google Cloud-Produkte finden Sie im Google Cloud-Beispielbrowser.