Tester les autorisations

Cette page explique comment vérifier si l'appelant a spécifié des autorisations.

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Tester les autorisations

Exemple de code

C#

Pour savoir comment installer et utiliser la bibliothèque cliente pour IAM, consultez la page Bibliothèques clientes IAM. Pour en savoir plus, consultez la documentation de référence de l'API Cloud IAM en langage C#.

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using System;
using System.Collections.Generic;
using Google.Apis.Auth.OAuth2;
using Google.Apis.CloudResourceManager.v1;
using Google.Apis.CloudResourceManager.v1.Data;

public partial class AccessManager
{
    public static IList<String> TestIamPermissions(string projectId)
    {
        var credential = GoogleCredential.GetApplicationDefault()
            .CreateScoped(CloudResourceManagerService.Scope.CloudPlatform);
        var service = new CloudResourceManagerService(
            new CloudResourceManagerService.Initializer
            {
                HttpClientInitializer = credential
            });

        TestIamPermissionsRequest requestBody = new TestIamPermissionsRequest();
        var permissions = new List<string>() { "resourcemanager.projects.get", "resourcemanager.projects.delete" };
        requestBody.Permissions = new List<string>(permissions);
        var returnedPermissions = service.Projects.TestIamPermissions(requestBody, projectId).Execute().Permissions;

        return returnedPermissions;
    }
}

C++

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namespace iam = ::google::cloud::iam;
[](std::string const& name, std::vector<std::string> const& permissions) {
  iam::IAMClient client(iam::MakeIAMConnection());
  auto response = client.TestIamPermissions(name, permissions);
  if (!response) throw std::runtime_error(response.status().message());
  std::cout << "Permissions successfully tested: " << response->DebugString()
            << "\n";
}

Java

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import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.services.cloudresourcemanager.v3.CloudResourceManager;
import com.google.api.services.cloudresourcemanager.v3.model.TestIamPermissionsRequest;
import com.google.api.services.cloudresourcemanager.v3.model.TestIamPermissionsResponse;
import com.google.api.services.iam.v1.IamScopes;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class TestPermissions {

  // Tests if the caller has the listed permissions.
  public static void testPermissions(String projectId) {
    // projectId = "my-project-id"

    CloudResourceManager service = null;
    try {
      service = createCloudResourceManagerService();
    } catch (IOException | GeneralSecurityException e) {
      System.out.println("Unable to initialize service: \n" + e.toString());
      return;
    }

    List<String> permissionsList =
        Arrays.asList("resourcemanager.projects.get", "resourcemanager.projects.delete");

    TestIamPermissionsRequest requestBody =
        new TestIamPermissionsRequest().setPermissions(permissionsList);
    try {
      TestIamPermissionsResponse testIamPermissionsResponse =
          service.projects().testIamPermissions(projectId, requestBody).execute();

      System.out.println(
          "Of the permissions listed in the request, the caller has the following: "
              + testIamPermissionsResponse.getPermissions().toString());
    } catch (IOException e) {
      System.out.println("Unable to test permissions: \n" + e.toString());
    }
  }

  public static CloudResourceManager createCloudResourceManagerService()
      throws IOException, GeneralSecurityException {
    // Use the Application Default Credentials strategy for authentication. For more info, see:
    // https://cloud.google.com/docs/authentication/production#finding_credentials_automatically
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(IamScopes.CLOUD_PLATFORM));

    CloudResourceManager service =
        new CloudResourceManager.Builder(
                GoogleNetHttpTransport.newTrustedTransport(),
                JacksonFactory.getDefaultInstance(),
                new HttpCredentialsAdapter(credential))
            .setApplicationName("service-accounts")
            .build();
    return service;
  }
}

Python

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def test_permissions(project_id):
    """Tests IAM permissions of the caller"""

    credentials = service_account.Credentials.from_service_account_file(
        filename=os.environ["GOOGLE_APPLICATION_CREDENTIALS"],
        scopes=["https://www.googleapis.com/auth/cloud-platform"],
    )
    service = googleapiclient.discovery.build(
        "cloudresourcemanager", "v1", credentials=credentials
    )

    permissions = {
        "permissions": [
            "resourcemanager.projects.get",
            "resourcemanager.projects.delete",
        ]
    }

    request = service.projects().testIamPermissions(
        resource=project_id, body=permissions
    )
    returnedPermissions = request.execute()
    print(returnedPermissions)
    return returnedPermissions

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