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from authlib.common.encoding import json_loads
from ._cryptography_key import load_pem_key
from .key_set import KeySet
class JsonWebKey:
JWK_KEY_CLS = {}
@classmethod
def generate_key(cls, kty, crv_or_size, options=None, is_private=False):
"""Generate a Key with the given key type, curve name or bit size.
:param kty: string of ``oct``, ``RSA``, ``EC``, ``OKP``
:param crv_or_size: curve name or bit size
:param options: a dict of other options for Key
:param is_private: create a private key or public key
:return: Key instance
"""
key_cls = cls.JWK_KEY_CLS[kty]
return key_cls.generate_key(crv_or_size, options, is_private)
@classmethod
def import_key(cls, raw, options=None):
"""Import a Key from bytes, string, PEM or dict.
:return: Key instance
"""
kty = None
if options is not None:
kty = options.get("kty")
if kty is None and isinstance(raw, dict):
kty = raw.get("kty")
if kty is None:
raw_key = load_pem_key(raw)
for _kty in cls.JWK_KEY_CLS:
key_cls = cls.JWK_KEY_CLS[_kty]
if key_cls.validate_raw_key(raw_key):
return key_cls.import_key(raw_key, options)
key_cls = cls.JWK_KEY_CLS[kty]
return key_cls.import_key(raw, options)
@classmethod
def import_key_set(cls, raw):
"""Import KeySet from string, dict or a list of keys.
:return: KeySet instance
"""
raw = _transform_raw_key(raw)
if isinstance(raw, dict) and "keys" in raw:
keys = raw.get("keys")
return KeySet([cls.import_key(k) for k in keys])
raise ValueError("Invalid key set format")
def _transform_raw_key(raw):
if isinstance(raw, str) and raw.startswith("{") and raw.endswith("}"):
return json_loads(raw)
elif isinstance(raw, (tuple, list)):
return {"keys": raw}
return raw
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