google.oauth2.credentials module¶
OAuth 2.0 Credentials.
This module provides credentials based on OAuth 2.0 access and refresh tokens. These credentials usually access resources on behalf of a user (resource owner).
Specifically, this is intended to use access tokens acquired using the Authorization Code grant and can refresh those tokens using a optional refresh token.
Obtaining the initial access and refresh token is outside of the scope of this module. Consult rfc6749 section 4.1 for complete details on the Authorization Code grant flow.
- class Credentials(token, refresh_token=None, id_token=None, token_uri=None, client_id=None, client_secret=None, scopes=None, default_scopes=None, quota_project_id=None, expiry=None, rapt_token=None, refresh_handler=None, enable_reauth_refresh=False)[source]¶
Bases:
ReadOnlyScoped
,CredentialsWithQuotaProject
Credentials using OAuth 2.0 access and refresh tokens.
The credentials are considered immutable. If you want to modify the quota project, use
with_quota_project()
orcredentials = credentials.with_quota_project('myproject-123')
Reauth is disabled by default. To enable reauth, set the enable_reauth_refresh parameter to True in the constructor. Note that reauth feature is intended for gcloud to use only. If reauth is enabled, pyu2f dependency has to be installed in order to use security key reauth feature. Dependency can be installed via pip install pyu2f or pip install google-auth[reauth].
- Parameters:
token (Optional(str)) – The OAuth 2.0 access token. Can be None if refresh information is provided.
refresh_token (str) – The OAuth 2.0 refresh token. If specified, credentials can be refreshed.
id_token (str) – The Open ID Connect ID Token.
token_uri (str) – The OAuth 2.0 authorization server’s token endpoint URI. Must be specified for refresh, can be left as None if the token can not be refreshed.
client_id (str) – The OAuth 2.0 client ID. Must be specified for refresh, can be left as None if the token can not be refreshed.
client_secret (str) – The OAuth 2.0 client secret. Must be specified for refresh, can be left as None if the token can not be refreshed.
scopes (
Sequence
[str
]) – The scopes used to obtain authorization. This parameter is used byhas_scopes()
. OAuth 2.0 credentials can not request additional scopes after authorization. The scopes must be derivable from the refresh token if refresh information is provided (e.g. The refresh token scopes are a superset of this or contain a wild card scope like ‘https://www.googleapis.com/auth/any-api’).default_scopes (
Sequence
[str
]) – Default scopes passed by a Google client library. Use ‘scopes’ for user-defined scopes.quota_project_id (
Optional
[str
]) – The project ID used for quota and billing. This project may be different from the project used to create the credentials.refresh_handler (
Optional
[Callable
[google.auth.transport.Request
Sequence
[str
] ,str
datetime
] ]) – A callable which takes in the HTTP request callable and the list of OAuth scopes and when called returns an access token string for the requested scopes and its expiry datetime. This is useful when no refresh tokens are provided and tokens are obtained by calling some external process on demand. It is particularly useful for retrieving downscoped tokens from a token broker.enable_reauth_refresh (
Optional
[bool
]) – Whether reauth refresh flow should be used. This flag is for gcloud to use only.
- expiry¶
When the token expires and is no longer valid. If this is None, the token is assumed to never expire.
- property id_token¶
The Open ID Connect ID Token.
Depending on the authorization server and the scopes requested, this may be populated when credentials are obtained and updated when
refresh()
is called. This token is a JWT. It can be verified and decoded usinggoogle.oauth2.id_token.verify_oauth2_token()
.
- property requires_scopes¶
OAuth 2.0 credentials have their scopes set when the initial token is requested and can not be changed.
- Type:
False
- property refresh_handler¶
Returns the refresh handler if available.
- with_quota_project(quota_project_id)[source]¶
Returns a copy of these credentials with a modified quota project.
- Parameters:
quota_project_id (str) – The project to use for quota and billing purposes
- Returns:
A new credentials instance.
- Return type:
- refresh(request)[source]¶
Refreshes the access token.
- Parameters:
request (google.auth.transport.Request) – The object used to make HTTP requests.
- Raises:
google.auth.exceptions.RefreshError – If the credentials could not be refreshed.
- classmethod from_authorized_user_info(info, scopes=None)[source]¶
Creates a Credentials instance from parsed authorized user info.
- Parameters:
- Returns:
- The constructed
credentials.
- Return type:
- Raises:
ValueError – If the info is not in the expected format.
- classmethod from_authorized_user_file(filename, scopes=None)[source]¶
Creates a Credentials instance from an authorized user json file.
- Parameters:
- Returns:
- The constructed
credentials.
- Return type:
- Raises:
ValueError – If the file is not in the expected format.
- to_json(strip=None)[source]¶
Utility function that creates a JSON representation of a Credentials object.
- before_request(request, method, url, headers)[source]¶
Performs credential-specific before request logic.
Refreshes the credentials if necessary, then calls
apply()
to apply the token to the authentication header.- Parameters:
request (google.auth.transport.Request) – The object used to make HTTP requests.
method (str) – The request’s HTTP method or the RPC method being invoked.
url (str) – The request’s URI or the RPC service’s URI.
headers (Mapping) – The request’s headers.
- property expired¶
Checks if the credentials are expired.
Note that credentials can be invalid but not expired because Credentials with
expiry
set to None is considered to never expire.
- has_scopes(scopes)¶
Checks if the credentials have the given scopes.
- property quota_project_id¶
Project to use for quota and billing purposes.
- class UserAccessTokenCredentials(account=None, quota_project_id=None)[source]¶
Bases:
CredentialsWithQuotaProject
Access token credentials for user account.
Obtain the access token for a given user account or the current active user account with the
gcloud auth print-access-token
command.- Parameters:
- with_account(account)[source]¶
Create a new instance with the given account.
- Parameters:
account (str) – Account to get the access token for.
- Returns:
- The created
credentials with the given account.
- Return type:
- with_quota_project(quota_project_id)[source]¶
Returns a copy of these credentials with a modified quota project.
- Parameters:
quota_project_id (str) – The project to use for quota and billing purposes
- Returns:
A new credentials instance.
- Return type:
- apply(headers, token=None)¶
Apply the token to the authentication header.
- property expired¶
Checks if the credentials are expired.
Note that credentials can be invalid but not expired because Credentials with
expiry
set to None is considered to never expire.
- property quota_project_id¶
Project to use for quota and billing purposes.
- refresh(request)[source]¶
Refreshes the access token.
- Parameters:
request (google.auth.transport.Request) – This argument is required by the base class interface but not used in this implementation, so just set it to None.
- Raises:
google.auth.exceptions.UserAccessTokenError – If the access token refresh failed.
- property valid¶
Checks the validity of the credentials.
This is True if the credentials have a
token
and the token is notexpired
.
- expiry¶
When the token expires and is no longer valid. If this is None, the token is assumed to never expire.
- before_request(request, method, url, headers)[source]¶
Performs credential-specific before request logic.
Refreshes the credentials if necessary, then calls
apply()
to apply the token to the authentication header.- Parameters:
request (google.auth.transport.Request) – The object used to make HTTP requests.
method (str) – The request’s HTTP method or the RPC method being invoked.
url (str) – The request’s URI or the RPC service’s URI.
headers (Mapping) – The request’s headers.