django-oidc-provider/oidc_provider/lib/utils/token.py

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from datetime import timedelta
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import time
import uuid
from Crypto.PublicKey.RSA import importKey
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from django.utils import timezone
from hashlib import md5
from jwkest.jwk import RSAKey as jwk_RSAKey
from jwkest.jws import JWS
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from oidc_provider.lib.utils.common import get_issuer
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from oidc_provider.models import *
from oidc_provider import settings
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def create_id_token(user, aud, nonce):
"""
Receives a user object and aud (audience).
Then creates the id_token dictionary.
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See: http://openid.net/specs/openid-connect-core-1_0.html#IDToken
Return a dic.
"""
sub = settings.get('OIDC_IDTOKEN_SUB_GENERATOR', import_str=True)(user=user)
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expires_in = settings.get('OIDC_IDTOKEN_EXPIRE')
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# Convert datetimes into timestamps.
now = timezone.now()
iat_time = int(time.mktime(now.timetuple()))
exp_time = int(time.mktime((now + timedelta(seconds=expires_in)).timetuple()))
user_auth_time = user.last_login or user.date_joined
auth_time = int(time.mktime(user_auth_time.timetuple()))
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dic = {
'iss': get_issuer(),
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'sub': sub,
'aud': str(aud),
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'exp': exp_time,
'iat': iat_time,
'auth_time': auth_time,
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}
if nonce:
dic['nonce'] = str(nonce)
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return dic
def encode_id_token(payload):
"""
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Represent the ID Token as a JSON Web Token (JWT).
Return a hash.
"""
keys = []
for rsakey in RSAKey.objects.all():
keys.append(jwk_RSAKey(key=importKey(rsakey.key), kid=rsakey.kid))
if not keys:
raise Exception('You must add at least one RSA Key.')
_jws = JWS(payload, alg='RS256')
return _jws.sign_compact(keys)
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def create_token(user, client, id_token_dic, scope):
"""
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Create and populate a Token object.
Return a Token object.
"""
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token = Token()
token.user = user
token.client = client
token.access_token = uuid.uuid4().hex
token.id_token = id_token_dic
token.refresh_token = uuid.uuid4().hex
token.expires_at = timezone.now() + timedelta(
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seconds=settings.get('OIDC_TOKEN_EXPIRE'))
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token.scope = scope
return token
def create_code(user, client, scope, nonce):
"""
Create and populate a Code object.
Return a Code object.
"""
code = Code()
code.user = user
code.client = client
code.code = uuid.uuid4().hex
code.expires_at = timezone.now() + timedelta(
seconds=settings.get('OIDC_CODE_EXPIRE'))
code.scope = scope
code.nonce = nonce
return code