def _ProbeObjectAccessWithClient(self, key, client_email, gcs_path,
logger):
"""Performs a head request against a signed url to check for read access."""
# Choose a reasonable time in the future; if the user's system clock is
# 60 or more seconds behind the server's this will generate an error.
signed_url = _GenSignedUrl(key, client_email, 'HEAD', '', '',
int(time.time()) + 60, gcs_path, logger)
try:
h = GetNewHttp()
req = Request(signed_url, 'HEAD')
response = MakeRequest(h, req)
if response.status_code not in [200, 403, 404]:
raise HttpError.FromResponse(response)
return response.status_code
except HttpError:
error_string = (
'Unexpected HTTP response code %s while querying '
'object readability. Is your system clock accurate?' %
response.status_code)
if response.content:
error_string += ' Content: %s' % response.content
raise CommandException(error_string)
def _ProbeObjectAccessWithClient(self, key, client_email, gcs_path, logger,
region):
"""Performs a head request against a signed url to check for read access."""
# Choose a reasonable time in the future; if the user's system clock is
# 60 or more seconds behind the server's this will generate an error.
signed_url = _GenSignedUrl(key, client_email, 'HEAD',
timedelta(seconds=60), gcs_path, logger,
region)
try:
h = GetNewHttp()
req = Request(signed_url, 'HEAD')
response = MakeRequest(h, req)
if response.status_code not in [200, 403, 404]:
raise HttpError.FromResponse(response)
return response.status_code
except HttpError as http_error:
if http_error.has_attr('response'):
error_response = http_error.response
error_string = (
'Unexpected HTTP response code %s while querying '
'object readability. Is your system clock accurate?' %
error_response.status_code)
if error_response.content:
error_string += ' Content: %s' % error_response.content
else:
error_string = (
'Expected an HTTP response code of '
'200 while querying object readability, but received '
'an error: %s' % http_error)
raise CommandException(error_string)
