V4-Signaturprozess mit Cloud Storage-Tools

Die V4-Signatur ist ein Prozess, mit dem Sie Signaturen für die Authentifizierung in Cloud Storage XML API-Anfragen generieren können. Auf dieser Seite wird beschrieben, wie Sie mit der Google Cloud CLI und den Cloud Storage-Clientbibliotheken signierte URLs erstellen. Signierte URLs gewähren zeitlich begrenzten Lese- oder Schreibzugriff auf eine bestimmte Cloud Storage-Ressource. Wenn Sie ein eigenes Programm zum Erstellen signierter URLs erstellen möchten, lesen Sie sich V4-Signaturprozess mit einem eigenen Programm durch.

Signierte URL zum Herunterladen eines Objekts erstellen

Führen Sie die folgenden Schritte aus, um eine signierte URL zu erstellen, mit der ein Objekt aus einem Bucket abgerufen werden kann:

Befehlszeile

Generieren Sie einen neuen privaten Schlüssel oder verwenden Sie einen vorhandenen privaten Schlüssel für ein Dienstkonto. Der Schlüssel muss im JSON-Format vorliegen.

Weitere Informationen zu privaten Schlüsseln und Dienstkonten finden Sie unter Dienstkonten.

Führen Sie den Befehl gcloud storage sign-url aus. Mit dem folgenden Befehl wird beispielsweise eine signierte URL erstellt, mit der Nutzer ein Objekt zehn Minuten lang herunterladen können:

gcloud storage sign-url gs://BUCKET_NAME/OBJECT_NAME --private-key-file=KEY_FILE --duration=10m

Wobei:

BUCKET_NAME ist der Name des Buckets, in dem sich das Objekt befindet. Beispiel: example-bucket.
OBJECT_NAME ist der Name des Objekts, das heruntergeladen werden soll. Beispiel: cat.jpeg.
KEY_FILE ist der Pfad zur Datei mit dem privaten Schlüssel Ihres Dienstkontos. Beispiel: Desktop/private-key.json

Wenn der Vorgang erfolgreich ist, wird Ihnen in etwa folgende Antwort angezeigt:

---
expiration: '2023-07-14 23:19:35'
http_verb: GET
resource: gs://example-bucket/cat.jpeg
signed_url: https://storage.googleapis.com/example-bucket/cat.jpeg?
x-goog-signature=11ae9c61ca84dd0bec319f7d52a38029e5873caa2eeced0568
ef96076258cfc1a925a9683cc907d210036b61af9e06a13bf4a15b15fab3916669b
e2f4c9f66ea6be822bec5858af519a6da705415b5768721197be213103fa09b8a18
8a143be77a24351517ff208a2c62cfebb78040daf1f953907080bd98f9462739d11
1355b1d9bcf54705b862f37392c031fde0d52add1a4d3bbb98a22e8b7023f6a1623
2e0a2dd56e524d410624d28663e557fafaf4ba0a04290a1066f894713857b429258
d14f056066c7622baf114c124e645688e19b4df3c4a7925f580693c93fa9c1dae7f
dff0edff7259c72f3f0eadc5a9f9f556c83c9c8dc02ee3af8d20ab634bad&x-goog
-algorithm=GOOG4-RSA-SHA256&x-goog-credential=example%40example-pro
ject.iam.gserviceaccount.com%2F20230714%2Fus%2Fstorage%2Fgoog4_requ
est&x-goog-date=20230714T221935Z&x-goog-expires=600&x-goog-signedhe
aders=host

Diese URL kann von jeder Person für den angegebenen Zeitraum (in diesem Fall zehn Minuten) verwendet werden, um auf die zugehörige Ressource (hier cat.jpeg) zuzugreifen.

Clientbibliotheken

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.

namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name,
   std::string const& object_name, std::string const& signing_account) {
  StatusOr<std::string> signed_url = client.CreateV4SignedUrl(
      "GET", bucket_name, object_name,
      gcs::SignedUrlDuration(std::chrono::minutes(15)),
      gcs::SigningAccount(signing_account));

  if (!signed_url) throw std::move(signed_url).status();
  std::cout << "The signed url is: " << *signed_url << "\n\n"
            << "You can use this URL with any user agent, for example:\n"
            << "curl '" << *signed_url << "'\n";
}

C#

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


using Google.Apis.Auth.OAuth2;
using Google.Cloud.Storage.V1;
using System;
using System.Net.Http;

public class GenerateV4SignedReadUrlSample
{
    public string GenerateV4SignedReadUrl(
        string bucketName = "your-unique-bucket-name",
        string objectName = "your-object-name")
    {
        UrlSigner urlSigner = UrlSigner.FromCredential(GoogleCredential.GetApplicationDefault());
        // V4 is the default signing version.
        string url = urlSigner.Sign(bucketName, objectName, TimeSpan.FromHours(1), HttpMethod.Get);
        Console.WriteLine("Generated GET signed URL:");
        Console.WriteLine(url);
        Console.WriteLine("You can use this URL with any user agent, for example:");
        Console.WriteLine($"curl '{url}'");
        return url;
    }
}

Go

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

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

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

// generateV4GetObjectSignedURL generates object signed URL with GET method.
func generateV4GetObjectSignedURL(w io.Writer, bucket, object string) (string, error) {
	// bucket := "bucket-name"
	// object := "object-name"

	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return "", fmt.Errorf("storage.NewClient: %w", err)
	}
	defer client.Close()

	// Signing a URL requires credentials authorized to sign a URL. You can pass
	// these in through SignedURLOptions with one of the following options:
	//    a. a Google service account private key, obtainable from the Google Developers Console
	//    b. a Google Access ID with iam.serviceAccounts.signBlob permissions
	//    c. a SignBytes function implementing custom signing.
	// In this example, none of these options are used, which means the SignedURL
	// function attempts to use the same authentication that was used to instantiate
	// the Storage client. This authentication must include a private key or have
	// iam.serviceAccounts.signBlob permissions.
	opts := &storage.SignedURLOptions{
		Scheme:  storage.SigningSchemeV4,
		Method:  "GET",
		Expires: time.Now().Add(15 * time.Minute),
	}

	u, err := client.Bucket(bucket).SignedURL(object, opts)
	if err != nil {
		return "", fmt.Errorf("Bucket(%q).SignedURL: %w", bucket, err)
	}

	fmt.Fprintln(w, "Generated GET signed URL:")
	fmt.Fprintf(w, "%q\n", u)
	fmt.Fprintln(w, "You can use this URL with any user agent, for example:")
	fmt.Fprintf(w, "curl %q\n", u)
	return u, nil
}

Java

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


import com.google.cloud.storage.BlobId;
import com.google.cloud.storage.BlobInfo;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageException;
import com.google.cloud.storage.StorageOptions;
import java.net.URL;
import java.util.concurrent.TimeUnit;

public class GenerateV4GetObjectSignedUrl {
  /**
   * Signing a URL requires Credentials which implement ServiceAccountSigner. These can be set
   * explicitly using the Storage.SignUrlOption.signWith(ServiceAccountSigner) option. If you don't,
   * you could also pass a service account signer to StorageOptions, i.e.
   * StorageOptions().newBuilder().setCredentials(ServiceAccountSignerCredentials). In this example,
   * neither of these options are used, which means the following code only works when the
   * credentials are defined via the environment variable GOOGLE_APPLICATION_CREDENTIALS, and those
   * credentials are authorized to sign a URL. See the documentation for Storage.signUrl for more
   * details.
   */
  public static void generateV4GetObjectSignedUrl(
      String projectId, String bucketName, String objectName) throws StorageException {
    // String projectId = "my-project-id";
    // String bucketName = "my-bucket";
    // String objectName = "my-object";

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

    // Define resource
    BlobInfo blobInfo = BlobInfo.newBuilder(BlobId.of(bucketName, objectName)).build();

    URL url =
        storage.signUrl(blobInfo, 15, TimeUnit.MINUTES, Storage.SignUrlOption.withV4Signature());

    System.out.println("Generated GET signed URL:");
    System.out.println(url);
    System.out.println("You can use this URL with any user agent, for example:");
    System.out.println("curl '" + url + "'");
  }
}

Node.js

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

/**
 * TODO(developer): Uncomment the following lines before running the sample.
 * Note: when creating a signed URL, unless running in a GCP environment,
 * a service account must be used for authorization.
 */
// The ID of your GCS bucket
// const bucketName = 'your-unique-bucket-name';

// The full path of your file inside the GCS bucket, e.g. 'yourFile.jpg' or 'folder1/folder2/yourFile.jpg'
// const fileName = 'your-file-name';

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

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

async function generateV4ReadSignedUrl() {
  // These options will allow temporary read access to the file
  const options = {
    version: 'v4',
    action: 'read',
    expires: Date.now() + 15 * 60 * 1000, // 15 minutes
  };

  // Get a v4 signed URL for reading the file
  const [url] = await storage
    .bucket(bucketName)
    .file(fileName)
    .getSignedUrl(options);

  console.log('Generated GET signed URL:');
  console.log(url);
  console.log('You can use this URL with any user agent, for example:');
  console.log(`curl '${url}'`);
}

generateV4ReadSignedUrl().catch(console.error);

PHP

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

use Google\Cloud\Storage\StorageClient;

/**
 * Generate a v4 signed URL for downloading an object.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 * @param string $objectName The name of your Cloud Storage object.
 *        (e.g. 'my-object')
 */
function get_object_v4_signed_url(string $bucketName, string $objectName): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $object = $bucket->object($objectName);
    $url = $object->signedUrl(
        # This URL is valid for 15 minutes
        new \DateTime('15 min'),
        [
            'version' => 'v4',
        ]
    );

    print('Generated GET signed URL:' . PHP_EOL);
    print($url . PHP_EOL);
    print('You can use this URL with any user agent, for example:' . PHP_EOL);
    print('curl ' . $url . PHP_EOL);
}

Python

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

import datetime

from google.cloud import storage


def generate_download_signed_url_v4(bucket_name, blob_name):
    """Generates a v4 signed URL for downloading a blob.

    Note that this method requires a service account key file. You can not use
    this if you are using Application Default Credentials from Google Compute
    Engine or from the Google Cloud SDK.
    """
    # bucket_name = 'your-bucket-name'
    # blob_name = 'your-object-name'

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

    url = blob.generate_signed_url(
        version="v4",
        # This URL is valid for 15 minutes
        expiration=datetime.timedelta(minutes=15),
        # Allow GET requests using this URL.
        method="GET",
    )

    print("Generated GET signed URL:")
    print(url)
    print("You can use this URL with any user agent, for example:")
    print(f"curl '{url}'")
    return url

Ruby

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

def generate_signed_url_v4 bucket_name:, file_name:
  # The ID of your GCS bucket
  # bucket_name = "your-unique-bucket-name"

  # The ID of your GCS object
  # file_name = "your-file-name"

  require "google/cloud/storage"

  storage = Google::Cloud::Storage.new
  storage_expiry_time = 5 * 60 # 5 minutes

  url = storage.signed_url bucket_name, file_name, method: "GET",
                           expires: storage_expiry_time, version: :v4

  puts "Generated GET signed url:"
  puts url
  puts "You can use this URL with any user agent, for example:"
  puts "curl #{url}"
end

Signierte URL zum Hochladen eines Objekts erstellen

Führen Sie die folgenden Schritte aus, um eine signierte URL zu erstellen, mit der ein Objekt in einen Bucket hochgeladen werden kann:

Befehlszeile

Generieren Sie einen neuen privaten Schlüssel oder verwenden Sie einen vorhandenen privaten Schlüssel für ein Dienstkonto. Der Schlüssel kann entweder im JSON- oder im PKCS12-Format vorliegen.

Weitere Informationen zu privaten Schlüsseln und Dienstkonten finden Sie unter Dienstkonten.

Führen Sie den Befehl gcloud storage sign-url aus. Mit dem folgenden Befehl wird beispielsweise eine signierte URL erstellt, mit der Nutzer eine Datei eine Stunde lang hochladen können:

gcloud storage sign-url gs://BUCKET_NAME/OBJECT_NAME --private-key-file=KEY_FILE --http-verb=PUT --duration=1h --headers=Content-Type=CONTENT_TYPE

BUCKET_NAME ist der Name des Buckets, in den das Objekt hochgeladen wird. Beispiel: example-bucket
OBJECT_NAME ist der Name, der dem hochgeladenen Objekt zugewiesen werden soll. Beispiel: cat.png.
KEY_FILE ist der Pfad zur Datei mit dem privaten Schlüssel Ihres Dienstkontos. Beispiel: Desktop/private-key.json
CONTENT_TYPE ist der Inhaltstyp des hochgeladenen Objekts. Beispiel: image/png.

Wenn der Vorgang erfolgreich ist, wird Ihnen in etwa folgende Antwort angezeigt:

---
expiration: '2023-07-14 23:35:47'
http_verb: PUT
resource: gs://example-bucket/cat.png
signed_url: https://storage.googleapis.com/example-bucket/cat.png?
x-goog-signature=2f670a686102963e0574f3c1a3b4d29ee4aa406c1528d42d2
30195d17fef73834b254314de7d7990afd48538a84b66f20010e7ecd90a900490e
6119b7e56a912f71c8d64285c40e86f31b8fec51cf8c7a61ded81de3cedac9c1ca
b92474b7371740fdac20b2d8d092b15396f79443bbde954a4174ed11aef6c2cf5f
a4d72a84ff60fd6003ed0a505b0e40b6207ddbaec2a15778f715c3ec7537a1b14f
b6661b2abaa5736f1670a412ca7e2555c830591f0595c01ff95af7f2206abe2e27
41948c16d4bd4c7cbb25f41277ece59236c06e00ca6c63ae2eb3efc22c216bb24c
e1b8b3801d07fd3a7ed3f2df3db6e59c6fc3cc76a002335dd936efd0237cf584e3
6&x-goog-algorithm=GOOG4-RSA-SHA256&x-goog-credential=example%40ex
ample-project.iam.gserviceaccount.com%2F20230714%2Fus%2Fstorage%2F
goog4_request&x-goog-date=20230714T223547Z&x-goog-expires=3600&x-g
oog-signedheaders=Content-Type%3Bhost

Diese URL kann von jeder Person verwendet werden, um eine Ressource (in diesem Fall cat.png) in den angegebenen Cloud Storage-Bucket für den angegebenen Zeitraum (in diesem Fall 1 Stunde) hochzuladen.

Clientbibliotheken

C++

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

namespace gcs = ::google::cloud::storage;
using ::google::cloud::StatusOr;
[](gcs::Client client, std::string const& bucket_name,
   std::string const& object_name, std::string const& signing_account) {
  StatusOr<std::string> signed_url = client.CreateV4SignedUrl(
      "PUT", bucket_name, object_name,
      gcs::SignedUrlDuration(std::chrono::minutes(15)),
      gcs::AddExtensionHeader("content-type", "application/octet-stream"),
      gcs::SigningAccount(signing_account));

  if (!signed_url) throw std::move(signed_url).status();
  std::cout << "The signed url is: " << *signed_url << "\n\n"
            << "You can use this URL with any user agent, for example:\n"
            << "curl -X PUT -H 'Content-Type: application/octet-stream'"
            << " --upload-file my-file '" << *signed_url << "'\n";
}

C#

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


using Google.Apis.Auth.OAuth2;
using Google.Cloud.Storage.V1;
using System;
using System.Collections.Generic;
using System.Net.Http;

public class GenerateV4UploadSignedUrlSample
{
    public string GenerateV4UploadSignedUrl(
        string bucketName = "your-unique-bucket-name",
        string objectName = "your-object-name")
    {
        UrlSigner urlSigner = UrlSigner.FromCredential(GoogleCredential.GetApplicationDefault());

        var contentHeaders = new Dictionary<string, IEnumerable<string>>
        {
            { "Content-Type", new[] { "text/plain" } }
        };

        // V4 is the default signing version.
        UrlSigner.Options options = UrlSigner.Options.FromDuration(TimeSpan.FromHours(1));

        UrlSigner.RequestTemplate template = UrlSigner.RequestTemplate
            .FromBucket(bucketName)
            .WithObjectName(objectName)
            .WithHttpMethod(HttpMethod.Put)
            .WithContentHeaders(contentHeaders);

        string url = urlSigner.Sign(template, options);
        Console.WriteLine("Generated PUT signed URL:");
        Console.WriteLine(url);
        Console.WriteLine("You can use this URL with any user agent, for example:");
        Console.WriteLine($"curl -X PUT -H 'Content-Type: text/plain' --upload-file my-file '{url}'");
        return url;
    }
}

Go

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

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

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

// generateV4GetObjectSignedURL generates object signed URL with PUT method.
func generateV4PutObjectSignedURL(w io.Writer, bucket, object string) (string, error) {
	// bucket := "bucket-name"
	// object := "object-name"

	ctx := context.Background()
	client, err := storage.NewClient(ctx)
	if err != nil {
		return "", fmt.Errorf("storage.NewClient: %w", err)
	}
	defer client.Close()

	// Signing a URL requires credentials authorized to sign a URL. You can pass
	// these in through SignedURLOptions with one of the following options:
	//    a. a Google service account private key, obtainable from the Google Developers Console
	//    b. a Google Access ID with iam.serviceAccounts.signBlob permissions
	//    c. a SignBytes function implementing custom signing.
	// In this example, none of these options are used, which means the SignedURL
	// function attempts to use the same authentication that was used to instantiate
	// the Storage client. This authentication must include a private key or have
	// iam.serviceAccounts.signBlob permissions.
	opts := &storage.SignedURLOptions{
		Scheme: storage.SigningSchemeV4,
		Method: "PUT",
		Headers: []string{
			"Content-Type:application/octet-stream",
		},
		Expires: time.Now().Add(15 * time.Minute),
	}

	u, err := client.Bucket(bucket).SignedURL(object, opts)
	if err != nil {
		return "", fmt.Errorf("Bucket(%q).SignedURL: %w", bucket, err)
	}

	fmt.Fprintln(w, "Generated PUT signed URL:")
	fmt.Fprintf(w, "%q\n", u)
	fmt.Fprintln(w, "You can use this URL with any user agent, for example:")
	fmt.Fprintf(w, "curl -X PUT -H 'Content-Type: application/octet-stream' --upload-file my-file %q\n", u)
	return u, nil
}

Java

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


import com.google.cloud.storage.BlobId;
import com.google.cloud.storage.BlobInfo;
import com.google.cloud.storage.HttpMethod;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageException;
import com.google.cloud.storage.StorageOptions;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

public class GenerateV4PutObjectSignedUrl {
  /**
   * Signing a URL requires Credentials which implement ServiceAccountSigner. These can be set
   * explicitly using the Storage.SignUrlOption.signWith(ServiceAccountSigner) option. If you don't,
   * you could also pass a service account signer to StorageOptions, i.e.
   * StorageOptions().newBuilder().setCredentials(ServiceAccountSignerCredentials). In this example,
   * neither of these options are used, which means the following code only works when the
   * credentials are defined via the environment variable GOOGLE_APPLICATION_CREDENTIALS, and those
   * credentials are authorized to sign a URL. See the documentation for Storage.signUrl for more
   * details.
   */
  public static void generateV4PutObjectSignedUrl(
      String projectId, String bucketName, String objectName) throws StorageException {
    // String projectId = "my-project-id";
    // String bucketName = "my-bucket";
    // String objectName = "my-object";

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

    // Define Resource
    BlobInfo blobInfo = BlobInfo.newBuilder(BlobId.of(bucketName, objectName)).build();

    // Generate Signed URL
    Map<String, String> extensionHeaders = new HashMap<>();
    extensionHeaders.put("Content-Type", "application/octet-stream");

    URL url =
        storage.signUrl(
            blobInfo,
            15,
            TimeUnit.MINUTES,
            Storage.SignUrlOption.httpMethod(HttpMethod.PUT),
            Storage.SignUrlOption.withExtHeaders(extensionHeaders),
            Storage.SignUrlOption.withV4Signature());

    System.out.println("Generated PUT signed URL:");
    System.out.println(url);
    System.out.println("You can use this URL with any user agent, for example:");
    System.out.println(
        "curl -X PUT -H 'Content-Type: application/octet-stream' --upload-file my-file '"
            + url
            + "'");
  }
}

Node.js

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

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

// The full path of your file inside the GCS bucket, e.g. 'yourFile.jpg' or 'folder1/folder2/yourFile.jpg'
// const fileName = 'your-file-name';

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

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

async function generateV4UploadSignedUrl() {
  // These options will allow temporary uploading of the file with outgoing
  // Content-Type: application/octet-stream header.
  const options = {
    version: 'v4',
    action: 'write',
    expires: Date.now() + 15 * 60 * 1000, // 15 minutes
    contentType: 'application/octet-stream',
  };

  // Get a v4 signed URL for uploading file
  const [url] = await storage
    .bucket(bucketName)
    .file(fileName)
    .getSignedUrl(options);

  console.log('Generated PUT signed URL:');
  console.log(url);
  console.log('You can use this URL with any user agent, for example:');
  console.log(
    "curl -X PUT -H 'Content-Type: application/octet-stream' " +
      `--upload-file my-file '${url}'`
  );
}

generateV4UploadSignedUrl().catch(console.error);

PHP

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

use Google\Cloud\Storage\StorageClient;

/**
 * Generate a v4 signed URL for uploading an object.
 *
 * @param string $bucketName The name of your Cloud Storage bucket.
 *        (e.g. 'my-bucket')
 * @param string $objectName The name of your Cloud Storage object.
 *        (e.g. 'my-object')
 */
function upload_object_v4_signed_url(string $bucketName, string $objectName): void
{
    $storage = new StorageClient();
    $bucket = $storage->bucket($bucketName);
    $object = $bucket->object($objectName);
    $url = $object->signedUrl(
        # This URL is valid for 15 minutes
        new \DateTime('15 min'),
        [
            'method' => 'PUT',
            'contentType' => 'application/octet-stream',
            'version' => 'v4',
        ]
    );

    print('Generated PUT signed URL:' . PHP_EOL);
    print($url . PHP_EOL);
    print('You can use this URL with any user agent, for example:' . PHP_EOL);
    print("curl -X PUT -H 'Content-Type: application/octet-stream' " .
        '--upload-file my-file ' . $url . PHP_EOL);
}

Python

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

import datetime

from google.cloud import storage


def generate_upload_signed_url_v4(bucket_name, blob_name):
    """Generates a v4 signed URL for uploading a blob using HTTP PUT.

    Note that this method requires a service account key file. You can not use
    this if you are using Application Default Credentials from Google Compute
    Engine or from the Google Cloud SDK.
    """
    # bucket_name = 'your-bucket-name'
    # blob_name = 'your-object-name'

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

    url = blob.generate_signed_url(
        version="v4",
        # This URL is valid for 15 minutes
        expiration=datetime.timedelta(minutes=15),
        # Allow PUT requests using this URL.
        method="PUT",
        content_type="application/octet-stream",
    )

    print("Generated PUT signed URL:")
    print(url)
    print("You can use this URL with any user agent, for example:")
    print(
        "curl -X PUT -H 'Content-Type: application/octet-stream' "
        "--upload-file my-file '{}'".format(url)
    )
    return url

Ruby

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

def generate_upload_signed_url_v4 bucket_name:, file_name:
  # The ID of your GCS bucket
  # bucket_name = "your-unique-bucket-name"

  # The ID of your GCS object
  # file_name = "your-file-name"

  require "google/cloud/storage"

  storage = Google::Cloud::Storage.new
  storage_expiry_time = 5 * 60 # 5 minutes

  url = storage.signed_url bucket_name, file_name, method: "PUT",
                           expires: storage_expiry_time, version: :v4,
                           headers: { "Content-Type" => "text/plain" }
  puts "Generated PUT signed URL:"
  puts url
  puts "You can use this URL with any user agent, for example:"
  puts "curl -X PUT -H 'Content-Type: text/plain' --upload-file my-file '#{url}'"
end

V4-Signaturprozess mit Cloud Storage-Tools

Signierte URL zum Herunterladen eines Objekts erstellen

Befehlszeile

Clientbibliotheken

C++

C#

Go

Java

Node.js

PHP

Python

Ruby

Signierte URL zum Hochladen eines Objekts erstellen

Befehlszeile

Clientbibliotheken

C++

C#

Go

Java

Node.js

PHP

Python

Ruby

Nächste Schritte