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"""Handle introspection of tokens."""
import datetime
from urllib.parse import urlparse
from flask import request as flask_request
from authlib.oauth2.rfc7662 import (
IntrospectionEndpoint as _IntrospectionEndpoint)
from gn_auth.auth.authentication.oauth2.models.oauth2token import OAuth2Token
from .utilities import query_token as _query_token
def get_token_user_sub(token: OAuth2Token) -> str:# pylint: disable=[unused-argument]
"""
Return the token's subject as defined in
https://datatracker.ietf.org/doc/html/rfc7519#section-4.1.2
"""
## For now a dummy return to prevent issues.
return "sub"
class IntrospectionEndpoint(_IntrospectionEndpoint):
"""Introspect token."""
def query_token(self, token_string: str, token_type_hint: str):
"""Query the token."""
return _query_token(self, token_string, token_type_hint)
def introspect_token(self, token: OAuth2Token) -> dict:# pylint: disable=[no-self-use]
"""Return the introspection information."""
url = urlparse(flask_request.url)
return {
"active": True,
"scope": token.get_scope(),
"client_id": token.client.client_id,
"username": token.user.name,
"token_type": token.token_type,
"exp": int(token.expires_at.timestamp()),
"iat": int(token.issued_at.timestamp()),
"nbf": int(
(token.issued_at - datetime.timedelta(seconds=120)).timestamp()),
# "sub": get_token_user_sub(token),
"aud": token.client.client_id,
"iss": f"{url.scheme}://{url.netloc}",
"jti": token.token_id
}
def check_permission(self, token, client, request):# pylint: disable=[unused-argument, no-self-use]
"""Check that the client has permission to introspect token."""
return client.client_type == "internal"
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