62 lines
1.6 KiB
Python
62 lines
1.6 KiB
Python
"""
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Module specific business logic for auth module
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Exports:
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- claims_dependency
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- authed_dependency
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"""
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import json
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import requests
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from typing import Annotated, Any
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from joserfc import jwt
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from urllib.request import urlopen
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from fastapi import Depends, HTTPException
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from fastapi.security import OpenIdConnect
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from joserfc.jwk import KeySet
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from src.auth.config import auth_settings
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oidc = OpenIdConnect(openIdConnectUrl=auth_settings.OIDC_CONFIG)
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oidc_dependency = Annotated[str, Depends(oidc)]
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async def get_current_user(oidc_auth_string: oidc_dependency) -> dict[str, Any]:
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config_url = urlopen(auth_settings.OIDC_CONFIG)
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config = json.loads(config_url.read())
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jwks_uri = config["jwks_uri"]
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key_response = requests.get(jwks_uri)
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jwk_keys = KeySet.import_key_set(key_response.json())
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claims_options = {
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"exp": {"essential": True},
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"aud": {"essential": True, "value": "account"},
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"iss": {"essential": True, "value": auth_settings.OIDC_ISSUER},
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}
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token = jwt.decode(
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oidc_auth_string.replace("Bearer ", ""),
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jwk_keys
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)
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claims_requests = jwt.JWTClaimsRegistry(**claims_options)
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claims_requests.validate(token.claims)
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return token.claims
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claims_dependency = Annotated[dict[str, Any], Depends(get_current_user)]
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async def is_authed_user(claims: claims_dependency) -> bool:
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authed_users: list[str] = auth_settings.AUTHORISED_USERS
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user_email = claims.get("email", None)
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if not user_email or user_email not in authed_users:
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raise HTTPException(status_code=403, detail="Not authenticated")
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return claims.get("email") in authed_users
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authed_dependency = Annotated[bool, Depends(is_authed_user)]
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