def authenticate_facebook(
self,
session: Session,
facebook_user_id: str,
access_token: str,
email: str,
first_name: str,
last_name: str,
role: UserRole,
authenticated_user: User = None,
):
user: User = None
# TODO refactor social account methods into service?
existing_facebook_social_account: Optional[SocialAccount] = (
session.query(SocialAccount).filter(
SocialAccount.account_type == SocialAccountType.FACEBOOK).
filter(SocialAccount.account_id == facebook_user_id).one_or_none())
if not authenticated_user and existing_facebook_social_account:
# social account exists therefore user exists
# sing in with facebook
user: User = existing_facebook_social_account.user
existing_facebook_social_account.access_token = access_token
existing_facebook_social_account.account_email = email
elif not authenticated_user:
# sign up with facebook
user_with_email = self.user_service.get_by_email(session, email)
if user_with_email:
raise ApplicationError("User exists with this email address")
user = self.user_service.create(
session,
first_name=first_name,
last_name=last_name,
email=email,
email_verified=True,
role=role,
commit=False,
)
session.flush()
existing_facebook_social_account = SocialAccount(
user_id=user.id,
access_token=access_token,
account_id=facebook_user_id,
account_email=email,
account_type=SocialAccountType.FACEBOOK,
)
session.add(existing_facebook_social_account)
elif not existing_facebook_social_account:
# link facebook account
# does user already havea an existing facebook account
authenticated_users_existing_facebook_account = (
session.query(SocialAccount).filter(
SocialAccount.user_id == authenticated_user.id).filter(
SocialAccount.account_type ==
SocialAccountType.FACEBOOK).one_or_none())
if authenticated_users_existing_facebook_account:
# update the account if yes
authenticated_users_existing_facebook_account.access_token = (
access_token)
authenticated_users_existing_facebook_account.account_email = email
authenticated_users_existing_facebook_account.account_id = (
facebook_user_id)
else:
# create a new one if not.
existing_facebook_social_account = SocialAccount(
user_id=authenticated_user.id,
access_token=access_token,
account_id=facebook_user_id,
account_email=email,
account_type=SocialAccountType.FACEBOOK,
)
session.add(existing_facebook_social_account)
user = authenticated_user
else:
# update facebook account
user: User = existing_facebook_social_account.user
if authenticated_user != user:
raise ApplicationError(
"Facebook Account is linked to another user")
existing_facebook_social_account.access_token = access_token
existing_facebook_social_account.account_email = email
session.commit()
return util.create_access_token(data={"sub": str(user.id)})