def _get_access_token(self):
log.info('Requesting new access token')
headers = CaseInsensitiveDict()
headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=utf-8'
body = urlencode({'client_id': OAUTH_CLIENT_ID,
'client_secret': OAUTH_CLIENT_SECRET,
'refresh_token': self.password,
'grant_type': 'refresh_token' })
conn = HTTPConnection('accounts.google.com', 443, proxy=self.proxy,
ssl_context=self.ssl_context)
try:
conn.send_request('POST', '/o/oauth2/token', headers=headers,
body=body.encode('utf-8'))
resp = conn.read_response()
if resp.status > 299 or resp.status < 200:
raise HTTPError(resp.status, resp.reason, resp.headers)
content_type = resp.headers.get('Content-Type', None)
if content_type:
hit = re.match(r'application/json(?:; charset="(.+)")?$',
resp.headers['Content-Type'], re.IGNORECASE)
else:
hit = None
if not hit:
log.error('Unexpected server reply when refreshing access token:\n%s',
self._dump_response(resp))
raise RuntimeError('Unable to parse server response')
charset = hit.group(1) or 'utf-8'
body = conn.readall().decode(charset)
resp_json = json.loads(body)
if not isinstance(resp_json, dict):
log.error('Invalid json server response. Expected dict, got:\n%s', body)
raise RuntimeError('Unable to parse server response')
if 'error' in resp_json:
raise AuthenticationError(resp_json['error'])
if 'access_token' not in resp_json:
log.error('Unable to find access token in server response:\n%s', body)
raise RuntimeError('Unable to parse server response')
self.access_token[self.password] = resp_json['access_token']
finally:
conn.disconnect()
def __call__(self, url: str, method: str = 'GET', body=None,
headers=None, timeout=None):
# https://github.com/googleapis/google-auth-library-python/issues/318
if not isinstance(body, bytes):
body = str(body).encode('ascii')
if timeout is not None:
raise ValueError('*timeout* argument is not supported')
hit = re.match(r'^(https?)://([^:/]+)(?::(\d+))?(.*)$', url)
if not hit:
raise ValueError('Unsupported URL: ' + url)
if hit.group(1) == 'https':
ssl_context = self.ssl_context
proxy = self.ssl_proxy
else:
ssl_context = None
proxy = self.proxy
hostname = hit.group(2)
if hit.group(3):
port = int(hit.group(3))
elif ssl_context:
port = 443
else:
port = 80
path = hit.group(4)
try:
conn = self.conn_pool[(hostname, port)]
except KeyError:
conn = HTTPConnection(hostname, port, proxy=proxy,
ssl_context=ssl_context)
self.conn_pool[(hostname, port)] = conn
try:
conn.send_request(method, path, headers=headers, body=body)
resp = conn.read_response()
except (dugong.ConnectionClosed, dugong.InvalidResponse, dugong.UnsupportedResponse,
dugong.ConnectionTimedOut, dugong.HostnameNotResolvable,
dugong.DNSUnavailable, ssl.SSLError) as exc:
raise g_auth.exceptions.TransportError(exc)
return Namespace(status=resp.status, headers=resp.headers,
data=conn.readall())
