Lister et obtenir des règles

Cette page fournit des exemples de code qui montrent comment lister et obtenir des stratégies.

Avant de commencer

Suivez les étapes de la section Configurer l'API Policy.

Règles de liste

L'exemple suivant montre comment lister les règles de votre organisation à l'aide de Python.

Important : Les niveaux d'accès OAuth spécifiés dans le code de votre application et utilisés pour créer des identifiants délégués doivent figurer dans la liste des niveaux d'accès autorisés pour la délégation à l'échelle du domaine dans la console d'administration Google. Un champ d'application plus large ou plus permissif ne fonctionnera pas. Si un champ d'application demandé par l'application pour créer des identifiants délégués n'est pas autorisé dans la délégation à l'échelle du domaine, l'application reçoit une erreur unauthorized_client.

  """Sample script to demonstrate the use of the List method in the Policy API."""

  from collections.abc import Mapping, Sequence
  import json
  import pprint
  import time
  from typing import Any
  import urllib.request
  from absl import app
  from absl import flags
  from google.oauth2 import service_account
  import google.auth
  from google.auth import iam
  from google.auth.transport import requests

  AUTH_SCOPES = ['https://www.googleapis.com/auth/iam']
  # The read-only scope of the API. Note that you must authorize the
  # exact same scope for domain-wide delegation in the Google Admin Console.
  POLICY_SCOPES = ['https://www.googleapis.com/auth/cloud-identity.policies.readonly']
  BASE_URL = 'https://cloudidentity.googleapis.com/'
  VERSIONED_BASE_URL = f'{BASE_URL}v1/'
  TOKEN_URI = "https://accounts.google.com/o/oauth2/token"

  _ADMIN_EMAIL = flags.DEFINE_string(
      name='admin_email',
      default=None,
      help='Administrator email to call as',
      required=True,
  )

  _PAGE_SIZE = flags.DEFINE_integer(
      name='page_size',
      default=50,
      help='Page size for the List API request',
      required=False,
  )

  # To list all policies, set FILTER to '';
  # To list policies for a specific customer, set FILTER to
  # 'customer == "customers/{obfuscated_target_customer_id}"';
  # To list policies for a specific Application, such as Gmail, set FILTER to
  # 'setting.type.matches("gmail.*")';
  # To list policies for a specific Setting, such as service_status, set FILTER to
  # 'setting.type.matches(".*service_status")'.
  _LIST_FILTER = flags.DEFINE_string(
      name='list_filter',
      default='',
      help='Filter for the List API request',
      required=False,
  )


  def create_delegated_credentials(
    admin_email: str
  ) -> google.auth.credentials.Credentials:
    """Creates delegated credentials for the user.

    Args:
      admin_email: The administrator email to call as.

    Returns:
      The delegated credentials for the user.

    """
    # Fetch application default credentials (ADC)
    credentials, _ = google.auth.default(scopes=AUTH_SCOPES)

    # Populate account information
    request = requests.Request()
    credentials.refresh(request)

    # Create an IAM signer
    signer = iam.Signer(request, credentials,
                        credentials.service_account_email)

    # Create domain-wide delegated (DWD) credentials
    delegated_credentials = service_account.Credentials(
        signer=signer,
        service_account_email=credentials.service_account_email,
        token_uri=TOKEN_URI,
        scopes=POLICY_SCOPES,
        subject=admin_email
    )
    return delegated_credentials


  def build_list_policies_request(
      page_size: int, list_filter: str, page_token: str, access_token: str
  ) -> urllib.request.Request:
    """Builds the request for the List Policies API.

    Args:
      page_size: The page size for the request.
      list_filter: The filter for the request.
      page_token: The page token for the request.
      access_token: The access token for the API.

    Returns:
      The request for the List Policies API.
    """
    list_url = (
        f'{VERSIONED_BASE_URL}policies?page_size={page_size}'
        f'&filter={list_filter}&page_token={page_token}'
    )
    request = urllib.request.Request(list_url)
    request.add_header('Authorization', 'Bearer ' + access_token)
    return request


  def call_list_policies_api(
      request: urllib.request.Request,
  ) -> Mapping[str, Any]:
    """Calls the List Policies API.

    Args:
      request: The request for the List Policies API.

    Returns:
      The response for the List Policies API.
    """
    content = urllib.request.urlopen(request).read()
    return json.loads(content)


  def call_list_policies_api_till_last_page(
      access_token: str, page_size: int, list_filter: str
  ) -> None:
    """Calls the List Policies API until the last page.

    Args:
      access_token: The access token for the API.
      page_size: The page size for the request.
      list_filter: The filter for the request.
    """
    page_token = ''
    # Paginate until the last page.
    while True:
      list_policies_request = build_list_policies_request(
          page_size, list_filter, page_token, access_token
      )
      list_policies_response = call_list_policies_api(list_policies_request)
      print_list_policies_response(list_policies_response)
      if (
          'nextPageToken' not in list_policies_response
          or not list_policies_response['nextPageToken']
      ):
        print('This is the last page.')
        break
      page_token = list_policies_response['nextPageToken']
      time.sleep(1)


  def print_list_policies_response(response: Mapping[str, Any]) -> None:
    pp = pprint.PrettyPrinter(indent=4)

    if 'policies' in response:
      for policy in response['policies']:
        pp.pprint(policy)
    if 'nextPageToken' in response:
      print('Next page token: ' + response['nextPageToken'])


  def main(argv: Sequence[str]):
    if len(argv) > 3:
      raise app.UsageError('Too many command-line arguments.')

    dc = create_delegated_credentials(_ADMIN_EMAIL.value)
    dc.refresh(requests.Request())
    call_list_policies_api_till_last_page(
        dc.token,
        _PAGE_SIZE.value,
        _LIST_FILTER.value,
    )


  if __name__ == '__main__':
    app.run(main)

Obtenir des règles

L'exemple suivant montre comment récupérer une règle spécifique à l'aide de Python.

  """Sample script to demonstrate the use of the get method in the Policy API."""

  def build_get_policy_request(
      policy_name: str, access_token: str
  ) -> urllib.request.Request:
    """Builds the request for the Get Policy API.

    Args:
      policy_name: The policy name to get.
      access_token: The access token for the API.

    Returns:
      The request for the Get Policy API.
    """
    list_url = f'{VERSIONED_BASE_URL}{policy_name}'
    request = urllib.request.Request(list_url)
    request.add_header('Authorization', 'Bearer ' + access_token)
    return request


  def call_get_policy_api(access_token: str, policy_name: str) -> None:
    """Calls the Get Policy API.

    Args:
      access_token: The access token for the API.
      policy_name: The policy name to get.
    """
    request = build_get_policy_request(policy_name, access_token)
    content = urllib.request.urlopen(request).read()
    response = json.loads(content)
    print_get_policy_response(response)


  def print_get_policy_response(response: str) -> None:
    pp = pprint.PrettyPrinter(indent=4)
    pp.pprint(response)

Quota

Pour chaque projet Google Cloud , l'API Cloud Identity Policy accepte une requête par seconde (RPS). Pour chaque client, l'API Cloud Identity Policy accepte un total de 1 RPS, même si le client crée plusieurs projets Google Cloud .

L'augmentation du quota n'est pas acceptée.