Test IAM permissions

Demonstrates how to verify IAM permissions to create findings

Code sample

Go

To authenticate to Security Command Center, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import (
	"context"
	"fmt"
	"io"

	iam "cloud.google.com/go/iam/apiv1/iampb"
	securitycenter "cloud.google.com/go/securitycenter/apiv1"
)

// testIam demonstrates how to determine if your service user has appropriate
// access to create and update findings, it writes permissions to w.
// sourceName is the full resource name of the source to test for permissions.
func testIam(w io.Writer, sourceName string) error {
	// sourceName := "organizations/111122222444/sources/1234"
	// Instantiate a context and a security service client to make API calls.
	ctx := context.Background()
	client, err := securitycenter.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("securitycenter.NewClient: %w", err)
	}
	defer client.Close() // Closing the client safely cleans up background resources.
	// Check for create/update Permissions.
	req := &iam.TestIamPermissionsRequest{
		Resource:    sourceName,
		Permissions: []string{"securitycenter.findings.update"},
	}

	policy, err := client.TestIamPermissions(ctx, req)
	if err != nil {
		return fmt.Errorf("Error getting IAM policy: %w", err)
	}
	fmt.Fprintf(w, "Permision to create/update findings? %t",
		len(policy.Permissions) > 0)

	// Check for updating state Permissions
	req = &iam.TestIamPermissionsRequest{
		Resource:    sourceName,
		Permissions: []string{"securitycenter.findings.setState"},
	}

	policy, err = client.TestIamPermissions(ctx, req)
	if err != nil {
		return fmt.Errorf("Error getting IAM policy: %w", err)
	}
	fmt.Fprintf(w, "Permision to update state? %t",
		len(policy.Permissions) > 0)

	return nil
}

Java

To authenticate to Security Command Center, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

static TestIamPermissionsResponse testIamPermissions(SourceName sourceName) {
  try (SecurityCenterClient client = SecurityCenterClient.create()) {
    // SourceName sourceName = SourceName.of(/*organizationId=*/"123234324",
    // /*sourceId=*/"423432321");

    // Iam permission to test.
    List<String> permissionsToTest = new ArrayList<>();
    permissionsToTest.add("securitycenter.findings.update");

    // Call the API.
    TestIamPermissionsResponse response =
        client.testIamPermissions(sourceName.toString(), permissionsToTest);
    System.out.println("IAM Permission:");
    System.out.println(response);

    return response;
  } catch (IOException e) {
    throw new RuntimeException("Couldn't create client.", e);
  }
}

Node.js

To authenticate to Security Command Center, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

// Imports the Google Cloud client library.
const {SecurityCenterClient} = require('@google-cloud/security-center');

// Creates a new client.
const client = new SecurityCenterClient();

// sourceName is the full resource name of the source to test for permissions.
/*
 * TODO(developer): Uncomment the following lines
 */
// const sourceName = "organizations/111122222444/sources/1234";
async function testIam() {
  {
    const [policy] = await client.testIamPermissions({
      resource: sourceName,
      permissions: ['securitycenter.findings.update'],
    });
    console.log(
      `Permissions to create/update findings? ${
        policy.permissions.length > 0
      }`
    );
  }
  {
    const [policy] = await client.testIamPermissions({
      resource: sourceName,
      permissions: ['securitycenter.findings.setState'],
    });
    console.log(
      `Permissions to update state? ${policy.permissions.length > 0}`
    );
  }
}
testIam();

Python

To authenticate to Security Command Center, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

from google.cloud import securitycenter_v1

# Create a client.
client = securitycenter_v1.SecurityCenterClient()
# 'source_name' is the resource path for a source that has been
# created previously (you can use list_sources to find a specific one).
# Its format is:
# source_name = "organizations/{organization_id}/sources/{source_id}"
# e.g.:
# source_name = "organizations/111122222444/sources/1234"

# Check for permssions to call create_finding or update_finding.
permission_response = client.test_iam_permissions(
    request={
        "resource": source_name,
        "permissions": ["securitycenter.findings.update"],
    }
)

print(
    "Permision to create or update findings? {}".format(
        len(permission_response.permissions) > 0
    )
)
# Check for permissions necessary to call set_finding_state.
permission_response = client.test_iam_permissions(
    request={
        "resource": source_name,
        "permissions": ["securitycenter.findings.setState"],
    }
)
print(f"Permision to update state? {len(permission_response.permissions) > 0}")

What's next

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