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rewrite but mostly improving naming but maybe also order

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This commit is contained in:
David McDonald
2020-01-24 16:40:15 +00:00
parent 5944eb3b15
commit cb0cd7ad50
1 changed files with 13 additions and 8 deletions
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21
app/authentication/auth.py
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@@ -67,10 +67,10 @@ def requires_auth():
request_helper.check_proxy_header_before_request()
auth_token = get_auth_token(request)
client = __get_token_issuer(auth_token)
issuer = __get_token_issuer(auth_token) # ie the `iss` claim which should be a service ID
try:
service = dao_fetch_service_by_id_with_api_keys(client)
service = dao_fetch_service_by_id_with_api_keys(issuer)
except DataError:
raise AuthError("Invalid token: service id is not the right data type", 403)
except NoResultFound:
@@ -85,14 +85,19 @@ def requires_auth():
for api_key in service.api_keys:
try:
decode_jwt_token(auth_token, api_key.secret)
except TokenExpiredError:
err_msg = "Error: Your system clock must be accurate to within 30 seconds"
raise AuthError(err_msg, 403, service_id=service.id, api_key_id=api_key.id)
except TokenAlgorithmError:
# During decoding and validation, it appears the token was created with an algorithm
# we don't allow so it fails validation
err_msg = "Invalid token: algorithm used is not HS256"
raise AuthError(err_msg, 403, service_id=service.id, api_key_id=api_key.id)
except TokenDecodeError:
# Given the algorithm chosen was fine, we attempted to validate the token but it failed
# meaning it was not signed using this api key, let's try the next one
continue
except TokenExpiredError:
# API key matches for this service but there was an error with the expiry of the token
err_msg = "Error: Your system clock must be accurate to within 30 seconds"
raise AuthError(err_msg, 403, service_id=service.id, api_key_id=api_key.id)
if api_key.expiry_date:
raise AuthError("Invalid token: API key revoked", 403, service_id=service.id, api_key_id=api_key.id)
@@ -100,7 +105,7 @@ def requires_auth():
g.service_id = api_key.service_id
_request_ctx_stack.top.authenticated_service = service
_request_ctx_stack.top.api_user = api_key
current_app.logger.info('API authorised for service {} with api key {}, using client {}'.format(
current_app.logger.info('API authorised for service {} with api key {}, using issuer {}'.format(
service.id,
api_key.id,
request.headers.get('User-Agent')
@@ -113,12 +118,12 @@ def requires_auth():
def __get_token_issuer(auth_token):
try:
client = get_token_issuer(auth_token)
issuer = get_token_issuer(auth_token)
except TokenIssuerError:
raise AuthError("Invalid token: iss field not provided", 403)
except TokenDecodeError:
raise AuthError("Invalid token: API token is not valid", 403)
return client
return issuer
def handle_admin_key(auth_token, secret):