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__pycache__	-	0755	-
__init__.py	1.52 KB	0644	Edit Rename Delete
algorithms.py	21.53 KB	0644	Edit Rename Delete
api_jwk.py	2.87 KB	0644	Edit Rename Delete
api_jws.py	7.86 KB	0644	Edit Rename Delete
api_jwt.py	7.15 KB	0644	Edit Rename Delete
exceptions.py	965 B	0644	Edit Rename Delete
help.py	1.57 KB	0644	Edit Rename Delete
jwks_client.py	1.87 KB	0644	Edit Rename Delete
py.typed	0 B	0644	Edit Rename Delete
utils.py	3.9 KB	0644	Edit Rename Delete

Edit File:jwks_client.py

import json
import urllib.request
from functools import lru_cache
from typing import Any, List

from .api_jwk import PyJWK, PyJWKSet
from .api_jwt import decode_complete as decode_token
from .exceptions import PyJWKClientError

class PyJWKClient:
    def __init__(self, uri: str, cache_keys: bool = True, max_cached_keys: int = 16):
        self.uri = uri
        if cache_keys:
            # Cache signing keys
            # Ignore mypy (https://github.com/python/mypy/issues/2427)
            self.get_signing_key = lru_cache(maxsize=max_cached_keys)(self.get_signing_key)  # type: ignore

def fetch_data(self) -> Any:
        with urllib.request.urlopen(self.uri) as response:
            return json.load(response)

def get_jwk_set(self) -> PyJWKSet:
        data = self.fetch_data()
        return PyJWKSet.from_dict(data)

def get_signing_keys(self) -> List[PyJWK]:
        jwk_set = self.get_jwk_set()
        signing_keys = [
            jwk_set_key
            for jwk_set_key in jwk_set.keys
            if jwk_set_key.public_key_use in ["sig", None] and jwk_set_key.key_id
        ]

if not signing_keys:
            raise PyJWKClientError("The JWKS endpoint did not contain any signing keys")

return signing_keys

def get_signing_key(self, kid: str) -> PyJWK:
        signing_keys = self.get_signing_keys()
        signing_key = None

for key in signing_keys:
            if key.key_id == kid:
                signing_key = key
                break

if not signing_key:
            raise PyJWKClientError(
                f'Unable to find a signing key that matches: "{kid}"'
            )

return signing_key

def get_signing_key_from_jwt(self, token: str) -> PyJWK:
        unverified = decode_token(token, options={"verify_signature": False})
        header = unverified["header"]
        return self.get_signing_key(header.get("kid"))

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current directory: / / lib / python3 / dist-packages / jwt

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