def _Refresh(self):
"""Refreshes the Bearer token credentials underlying this transport.
This utilizes the "realm" and "service" established during _Ping to
set up _creds with up-to-date credentials, by passing the
client-provided _basic_creds to the authorization realm.
This is generally called under two circumstances:
1) When the transport is created (eagerly)
2) When a request fails on a 401 Unauthorized
Raises:
TokenRefreshException: Error during token exchange.
"""
headers = {
'content-type': 'application/json',
'user-agent': docker_name.USER_AGENT,
'Authorization': self._basic_creds.Get()
}
parameters = {
'scope': self._Scope(),
'service': self._service,
}
resp, content = self._transport.request(
# 'realm' includes scheme and path
'{realm}?{query}'.format(
realm=self._realm,
query=six.moves.urllib.parse.urlencode(parameters)),
'GET',
body=None,
headers=headers)
if resp.status != six.moves.http_client.OK:
raise TokenRefreshException(
'Bad status during token exchange: %d\n%s' %
(resp.status, content))
try:
content = content.decode('utf8')
except: # pylint: disable=bare-except
# Assume it's already decoded. Defensive coding for old py2 habits that
# are hard to break. Passing does not make the problem worse.
pass
wrapper_object = json.loads(content)
token = wrapper_object.get('token') or wrapper_object.get(
'access_token')
_CheckState(token is not None, 'Malformed JSON response: %s' % content)
with self._lock:
# We have successfully reauthenticated.
self._creds = v2_2_creds.Bearer(token)
def _Refresh(self):
"""Refreshes the Bearer token credentials underlying this transport.
This utilizes the "realm" and "service" established during _Ping to
set up _creds with up-to-date credentials, by passing the
client-provided _basic_creds to the authorization realm.
This is generally called under two circumstances:
1) When the transport is created (eagerly)
2) When a request fails on a 401 Unauthorized
Raises:
TokenRefreshException: Error during token exchange.
"""
headers = {
'content-type': 'application/json',
'user-agent': docker_name.USER_AGENT,
'Authorization': self._basic_creds.Get()
}
parameters = {
'scope': self._Scope(),
'service': self._service,
}
resp, content = self._transport.request(
# 'realm' includes scheme and path
'{realm}?{query}'.format(realm=self._realm,
query=urllib.urlencode(parameters)),
'GET',
body=None,
headers=headers)
if resp.status != httplib.OK:
raise TokenRefreshException(
'Bad status during token exchange: %d\n%s' %
(resp.status, content))
wrapper_object = json.loads(content)
_CheckState('token' in wrapper_object,
'Malformed JSON response: %s' % content)
with self._lock:
# We have successfully reauthenticated.
self._creds = v2_2_creds.Bearer(wrapper_object['token'])