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　晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 . Prv8 Shell

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Current File : //proc/self/root/opt/imunify360/venv/lib64/python3.11/site-packages/jwt/api_jwk.py

import json

from .algorithms import get_default_algorithms
from .exceptions import InvalidKeyError, PyJWKError, PyJWKSetError


class PyJWK:
    def __init__(self, jwk_data, algorithm=None):
        self._algorithms = get_default_algorithms()
        self._jwk_data = jwk_data

        kty = self._jwk_data.get("kty", None)
        if not kty:
            raise InvalidKeyError("kty is not found: %s" % self._jwk_data)

        if not algorithm and isinstance(self._jwk_data, dict):
            algorithm = self._jwk_data.get("alg", None)

        if not algorithm:
            # Determine alg with kty (and crv).
            crv = self._jwk_data.get("crv", None)
            if kty == "EC":
                if crv == "P-256" or not crv:
                    algorithm = "ES256"
                elif crv == "P-384":
                    algorithm = "ES384"
                elif crv == "P-521":
                    algorithm = "ES512"
                elif crv == "secp256k1":
                    algorithm = "ES256K"
                else:
                    raise InvalidKeyError("Unsupported crv: %s" % crv)
            elif kty == "RSA":
                algorithm = "RS256"
            elif kty == "oct":
                algorithm = "HS256"
            elif kty == "OKP":
                if not crv:
                    raise InvalidKeyError("crv is not found: %s" % self._jwk_data)
                if crv == "Ed25519":
                    algorithm = "EdDSA"
                else:
                    raise InvalidKeyError("Unsupported crv: %s" % crv)
            else:
                raise InvalidKeyError("Unsupported kty: %s" % kty)

        self.Algorithm = self._algorithms.get(algorithm)

        if not self.Algorithm:
            raise PyJWKError("Unable to find a algorithm for key: %s" % self._jwk_data)

        self.key = self.Algorithm.from_jwk(self._jwk_data)

    @staticmethod
    def from_dict(obj, algorithm=None):
        return PyJWK(obj, algorithm)

    @staticmethod
    def from_json(data, algorithm=None):
        obj = json.loads(data)
        return PyJWK.from_dict(obj, algorithm)

    @property
    def key_type(self):
        return self._jwk_data.get("kty", None)

    @property
    def key_id(self):
        return self._jwk_data.get("kid", None)

    @property
    def public_key_use(self):
        return self._jwk_data.get("use", None)


class PyJWKSet:
    def __init__(self, keys):
        self.keys = []

        if not keys or not isinstance(keys, list):
            raise PyJWKSetError("Invalid JWK Set value")

        if len(keys) == 0:
            raise PyJWKSetError("The JWK Set did not contain any keys")

        for key in keys:
            self.keys.append(PyJWK(key))

    @staticmethod
    def from_dict(obj):
        keys = obj.get("keys", [])
        return PyJWKSet(keys)

    @staticmethod
    def from_json(data):
        obj = json.loads(data)
        return PyJWKSet.from_dict(obj)

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