a829726be8
* Log create_uri_response exceptions to logger.exception * Support grant type password - basics * Add tests for Resource Owner Password Credentials Flow * Password Grant -Response according to specification * Better tests for errors, disable grant type password by default * Add documentation for grant type password * User authentication failure to return 403 * Add id_token to response * skipping consent only works for confidential clients * fix URI fragment example not working URL `http://localhost:8100/#/auth/callback/` * OIDC_POST_END_SESSION_HOOK + tests * Explicit function naming * Remove print statements * No need for semicolons, this is Python * Update CHANGELOG.md * fixed logger message * Improved `exp` value calculation * rename OIDC_POST_END_SESSION_HOOK to OIDC_AFTER_END_SESSION_HOOK * added docs for OIDC_AFTER_END_SESSION_HOOK * Replaces `LOGIN_URL` with `OIDC_LOGIN_URL` so users can use a different login path for their oidc requests. * Adds a setting variable for custom template paths * Updates documentation * Fixed bad try/except/finally block * Adds test for OIDC_TEMPLATES settings * Determine value for op_browser_state from session_key or default * Do not use cookie for browser_state. It may not yet be there * Add docs on new setting OIDC_UNAUTHENTICATED_SESSION_MANAGEMENT_KEY * Fix compatibility for older versions of Django * solved merging typo for missing @property
271 lines
9.3 KiB
Python
271 lines
9.3 KiB
Python
from base64 import b64decode, urlsafe_b64encode
|
|
import hashlib
|
|
import logging
|
|
import re
|
|
from django.contrib.auth import authenticate
|
|
from oidc_provider.lib.utils.common import cleanup_url_from_query_string
|
|
|
|
try:
|
|
from urllib.parse import unquote
|
|
except ImportError:
|
|
from urllib import unquote
|
|
|
|
from django.http import JsonResponse
|
|
|
|
from oidc_provider.lib.errors import (
|
|
TokenError,
|
|
UserAuthError,
|
|
)
|
|
from oidc_provider.lib.utils.token import (
|
|
create_id_token,
|
|
create_token,
|
|
encode_id_token,
|
|
)
|
|
from oidc_provider.models import (
|
|
Client,
|
|
Code,
|
|
Token,
|
|
)
|
|
from oidc_provider import settings
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class TokenEndpoint(object):
|
|
def __init__(self, request):
|
|
self.request = request
|
|
self.params = {}
|
|
self.user = None
|
|
self._extract_params()
|
|
|
|
def _extract_params(self):
|
|
client_id, client_secret = self._extract_client_auth()
|
|
|
|
self.params['client_id'] = client_id
|
|
self.params['client_secret'] = client_secret
|
|
self.params['redirect_uri'] = unquote(
|
|
self.request.POST.get('redirect_uri', '').split('?', 1)[0])
|
|
self.params['grant_type'] = self.request.POST.get('grant_type', '')
|
|
self.params['code'] = self.request.POST.get('code', '')
|
|
self.params['state'] = self.request.POST.get('state', '')
|
|
self.params['scope'] = self.request.POST.get('scope', '')
|
|
self.params['refresh_token'] = self.request.POST.get('refresh_token', '')
|
|
# PKCE parameter.
|
|
self.params['code_verifier'] = self.request.POST.get('code_verifier')
|
|
|
|
self.params['username'] = self.request.POST.get('username', '')
|
|
self.params['password'] = self.request.POST.get('password', '')
|
|
|
|
def _extract_client_auth(self):
|
|
"""
|
|
Get client credentials using HTTP Basic Authentication method.
|
|
Or try getting parameters via POST.
|
|
See: http://tools.ietf.org/html/rfc6750#section-2.1
|
|
|
|
Return a string.
|
|
"""
|
|
auth_header = self.request.META.get('HTTP_AUTHORIZATION', '')
|
|
|
|
if re.compile('^Basic\s{1}.+$').match(auth_header):
|
|
b64_user_pass = auth_header.split()[1]
|
|
try:
|
|
user_pass = b64decode(b64_user_pass).decode('utf-8').split(':')
|
|
client_id, client_secret = tuple(user_pass)
|
|
except:
|
|
client_id = client_secret = ''
|
|
else:
|
|
client_id = self.request.POST.get('client_id', '')
|
|
client_secret = self.request.POST.get('client_secret', '')
|
|
|
|
return (client_id, client_secret)
|
|
|
|
def validate_params(self):
|
|
try:
|
|
self.client = Client.objects.get(client_id=self.params['client_id'])
|
|
except Client.DoesNotExist:
|
|
logger.debug('[Token] Client does not exist: %s', self.params['client_id'])
|
|
raise TokenError('invalid_client')
|
|
|
|
if self.client.client_type == 'confidential':
|
|
if not (self.client.client_secret == self.params['client_secret']):
|
|
logger.debug('[Token] Invalid client secret: client %s do not have secret %s',
|
|
self.client.client_id, self.client.client_secret)
|
|
raise TokenError('invalid_client')
|
|
|
|
if self.params['grant_type'] == 'authorization_code':
|
|
clean_redirect_uri = cleanup_url_from_query_string(self.params['redirect_uri'])
|
|
if not (clean_redirect_uri in self.client.redirect_uris):
|
|
logger.debug('[Token] Invalid redirect uri: %s', self.params['redirect_uri'])
|
|
raise TokenError('invalid_client')
|
|
|
|
try:
|
|
self.code = Code.objects.get(code=self.params['code'])
|
|
except Code.DoesNotExist:
|
|
logger.debug('[Token] Code does not exist: %s', self.params['code'])
|
|
raise TokenError('invalid_grant')
|
|
|
|
if not (self.code.client == self.client) \
|
|
or self.code.has_expired():
|
|
logger.debug('[Token] Invalid code: invalid client or code has expired')
|
|
raise TokenError('invalid_grant')
|
|
|
|
# Validate PKCE parameters.
|
|
if self.params['code_verifier']:
|
|
if self.code.code_challenge_method == 'S256':
|
|
new_code_challenge = urlsafe_b64encode(
|
|
hashlib.sha256(self.params['code_verifier'].encode('ascii')).digest()
|
|
).decode('utf-8').replace('=', '')
|
|
else:
|
|
new_code_challenge = self.params['code_verifier']
|
|
|
|
# TODO: We should explain the error.
|
|
if not (new_code_challenge == self.code.code_challenge):
|
|
raise TokenError('invalid_grant')
|
|
|
|
elif self.params['grant_type'] == 'password':
|
|
if not settings.get('OIDC_GRANT_TYPE_PASSWORD_ENABLE'):
|
|
raise TokenError('unsupported_grant_type')
|
|
|
|
user = authenticate(
|
|
username=self.params['username'],
|
|
password=self.params['password']
|
|
)
|
|
|
|
if not user:
|
|
raise UserAuthError()
|
|
|
|
self.user = user
|
|
|
|
elif self.params['grant_type'] == 'refresh_token':
|
|
if not self.params['refresh_token']:
|
|
logger.debug('[Token] Missing refresh token')
|
|
raise TokenError('invalid_grant')
|
|
|
|
try:
|
|
self.token = Token.objects.get(refresh_token=self.params['refresh_token'],
|
|
client=self.client)
|
|
|
|
except Token.DoesNotExist:
|
|
logger.debug('[Token] Refresh token does not exist: %s', self.params['refresh_token'])
|
|
raise TokenError('invalid_grant')
|
|
|
|
else:
|
|
logger.debug('[Token] Invalid grant type: %s', self.params['grant_type'])
|
|
raise TokenError('unsupported_grant_type')
|
|
|
|
def create_response_dic(self):
|
|
if self.params['grant_type'] == 'authorization_code':
|
|
return self.create_code_response_dic()
|
|
elif self.params['grant_type'] == 'refresh_token':
|
|
return self.create_refresh_response_dic()
|
|
elif self.params['grant_type'] == 'password':
|
|
return self.create_access_token_response_dic()
|
|
|
|
def create_access_token_response_dic(self):
|
|
token = create_token(
|
|
self.user,
|
|
self.client,
|
|
self.params['scope'].split(' '))
|
|
|
|
id_token_dic = create_id_token(
|
|
user=self.user,
|
|
aud=self.client.client_id,
|
|
nonce='self.code.nonce',
|
|
at_hash=token.at_hash,
|
|
request=self.request,
|
|
scope=self.params['scope'],
|
|
)
|
|
|
|
token.id_token = id_token_dic
|
|
token.save()
|
|
|
|
return {
|
|
'access_token': token.access_token,
|
|
'refresh_token': token.refresh_token,
|
|
'expires_in': settings.get('OIDC_TOKEN_EXPIRE'),
|
|
'token_type': 'bearer',
|
|
'id_token': encode_id_token(id_token_dic, token.client),
|
|
}
|
|
|
|
def create_code_response_dic(self):
|
|
token = create_token(
|
|
user=self.code.user,
|
|
client=self.code.client,
|
|
scope=self.code.scope)
|
|
|
|
if self.code.is_authentication:
|
|
id_token_dic = create_id_token(
|
|
user=self.code.user,
|
|
aud=self.client.client_id,
|
|
nonce=self.code.nonce,
|
|
at_hash=token.at_hash,
|
|
request=self.request,
|
|
scope=self.params['scope'],
|
|
)
|
|
else:
|
|
id_token_dic = {}
|
|
token.id_token = id_token_dic
|
|
|
|
# Store the token.
|
|
token.save()
|
|
|
|
# We don't need to store the code anymore.
|
|
self.code.delete()
|
|
|
|
dic = {
|
|
'access_token': token.access_token,
|
|
'refresh_token': token.refresh_token,
|
|
'token_type': 'bearer',
|
|
'expires_in': settings.get('OIDC_TOKEN_EXPIRE'),
|
|
'id_token': encode_id_token(id_token_dic, token.client),
|
|
}
|
|
|
|
return dic
|
|
|
|
def create_refresh_response_dic(self):
|
|
token = create_token(
|
|
user=self.token.user,
|
|
client=self.token.client,
|
|
scope=self.token.scope)
|
|
|
|
# If the Token has an id_token it's an Authentication request.
|
|
if self.token.id_token:
|
|
id_token_dic = create_id_token(
|
|
user=self.token.user,
|
|
aud=self.client.client_id,
|
|
nonce=None,
|
|
at_hash=token.at_hash,
|
|
request=self.request,
|
|
scope=self.params['scope'],
|
|
)
|
|
else:
|
|
id_token_dic = {}
|
|
token.id_token = id_token_dic
|
|
|
|
# Store the token.
|
|
token.save()
|
|
|
|
# Forget the old token.
|
|
self.token.delete()
|
|
|
|
dic = {
|
|
'access_token': token.access_token,
|
|
'refresh_token': token.refresh_token,
|
|
'token_type': 'bearer',
|
|
'expires_in': settings.get('OIDC_TOKEN_EXPIRE'),
|
|
'id_token': encode_id_token(id_token_dic, self.token.client),
|
|
}
|
|
|
|
return dic
|
|
|
|
@classmethod
|
|
def response(cls, dic, status=200):
|
|
"""
|
|
Create and return a response object.
|
|
"""
|
|
response = JsonResponse(dic, status=status)
|
|
response['Cache-Control'] = 'no-store'
|
|
response['Pragma'] = 'no-cache'
|
|
|
|
return response
|