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Add Credentials implementation supplying an ID token. #234

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merged 3 commits into from
Feb 8, 2018

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kryzthov
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@jonparrott Here's a primitive implementation for #130.
This adds everything in google.auth.id_token as I don't know any better.
Could you advise on how to structure this better?
Thanks!

@theacodes
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I changed a significant portion of this so some else needs to review. @dhermes?

@@ -155,6 +156,49 @@ def jwt_grant(request, token_uri, assertion):
return access_token, expiry, response_data


def id_token_jwt_grant(request, token_uri, assertion):
"""Implements the JWT Profile for OAuth 2.0 Authorization Grants, but
requests an OpenID Connect ID Token instead of a access token.

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Args:
request (google.auth.transport.Request): A callable used to make
HTTP requests.
token_uri (str): The OAuth 2.0 authorizations server's token endpoint

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URI.
assertion (str): JWT token signed by a service account. The assertion
must include a ``target_audience`` claim.
Returns:

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token_uri (str): The OAuth 2.0 authorizations server's token endpoint
URI.
assertion (str): JWT token signed by a service account. The assertion
must include a ``target_audience`` claim.

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Tuple[str, Optional[datetime], Mapping[str, str]]:
The (encoded) Open ID Connect ID Token, expiration, and additional
data returned by the endpoint.
Raises:

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self._token_uri = token_uri
self._target_audience = target_audience

if additional_claims is not None:

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delegated_credentials = credentials.with_subject(subject)

"""
def __init__(self, signer, service_account_email, token_uri,

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google.auth.service_account.IDTokenCredentials: A new credentials
instance.
"""
return IDTokenCredentials(

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3 participants