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# -*- coding: utf-8 -*-
"""
oauthlib.openid.connect.core.grant_types
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"""
import logging
from oauthlib.oauth2.rfc6749.grant_types.authorization_code import (
AuthorizationCodeGrant as OAuth2AuthorizationCodeGrant,
)
from .base import GrantTypeBase
log = logging.getLogger(__name__)
class AuthorizationCodeGrant(GrantTypeBase):
def __init__(self, request_validator=None, **kwargs):
self.proxy_target = OAuth2AuthorizationCodeGrant(
request_validator=request_validator, **kwargs)
self.custom_validators.post_auth.append(
self.openid_authorization_validator)
self.register_token_modifier(self.add_id_token)
def add_id_token(self, token, token_handler, request):
"""
Construct an initial version of id_token, and let the
request_validator sign or encrypt it.
The authorization_code version of this method is used to
retrieve the nonce accordingly to the code storage.
"""
# Treat it as normal OAuth 2 auth code request if openid is not present
if not request.scopes or 'openid' not in request.scopes:
return token
nonce = self.request_validator.get_authorization_code_nonce(
request.client_id,
request.code,
request.redirect_uri,
request
)
return super().add_id_token(token, token_handler, request, nonce=nonce)
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