def send_handle_delete_request(self, **args):
'''
Send a HTTP DELETE request to the handle server to delete either an
entire handle or to some specified values from a handle record,
using the requests module.
:param handle: The handle.
:param indices: Optional. A list of indices to delete. Defaults to
None (i.e. the entire handle is deleted.). The list can contain
integers or strings.
:return: The server's response.
'''
# Check if we have write access at all:
if not self.__has_write_access:
raise HandleAuthenticationError(msg=self.__no_auth_message)
# Check args:
mandatory_args = ['handle']
optional_args = ['indices', 'op']
util.add_missing_optional_args_with_value_none(args, optional_args)
util.check_presence_of_mandatory_args(args, mandatory_args)
handle = args['handle']
indices = args['indices']
op = args['op']
# Make necessary values:
url = self.make_handle_URL(handle, indices)
if indices is not None and len(indices) > 0:
LOGGER.debug('__send_handle_delete_request: Deleting values '+str(indices)+' from handle '+handle+'.')
else:
LOGGER.debug('__send_handle_delete_request: Deleting handle '+handle+'.')
LOGGER.debug('DELETE Request to '+url)
head = self.__get_headers('DELETE')
veri = self.__HTTPS_verify
# Make request:
resp = None
if self.__authentication_method == self.__auth_methods['user_pw']:
resp = self.__session.delete(url, headers=head, verify=veri)
elif self.__authentication_method == self.__auth_methods['cert']:
resp = self.__session.delete(url, headers=head, verify=veri, cert=self.__cert_object)
self.__log_request_response_to_file(
logger=REQUESTLOGGER,
op='DELETE',
handle=handle,
url=url,
headers=head,
verify=veri,
resp=resp
)
# Check response for authentication issues:
if hsresponses.not_authenticated(resp):
raise HandleAuthenticationError(
operation=op,
handle=handle,
response=resp,
username=self.__username
)
return resp
def send_handle_put_request(self, **args):
'''
Send a HTTP PUT request to the handle server to write either an entire
handle or to some specified values to an handle record, using the
requests module.
:param handle: The handle.
:param list_of_entries: A list of handle record entries to be written,
in the format [{"index":xyz, "type":"xyz", "data":"xyz"}] or similar.
:param indices: Optional. A list of indices to delete. Defaults
to None (i.e. the entire handle is deleted.). The list can
contain integers or strings.
:param overwrite: Optional. Whether the handle should be overwritten
if it exists already.
:return: The server's response.
'''
# Check if we have write access at all:
if not self.__has_write_access:
raise HandleAuthenticationError(msg=self.__no_auth_message)
# Check args:
mandatory_args = ['handle', 'list_of_entries']
optional_args = ['indices', 'op', 'overwrite']
util.add_missing_optional_args_with_value_none(args, optional_args)
util.check_presence_of_mandatory_args(args, mandatory_args)
handle = args['handle']
list_of_entries = args['list_of_entries']
indices = args['indices']
op = args['op']
overwrite = args['overwrite'] or False
# Overwrite by index:
if indices is not None:
message = 'Writing handle values by index is not implemented'+\
' yet because the way the indices are interpreted by the'+\
' Handle Server may be modified soon. The entire handle'+\
' record has to be overwritten.'
raise NotImplementedError(message)
# TODO FIXME: As soon as the Handle System uses the correct indices
# for overwriting, this may be implemented.
# In HSv8 beta, the HS uses ?index=3 for overwriting index:4. If the
# library used this and then the behaviour is changed, it would lead
# to corrupt handle records, so we wait until the issue is fixed by
# the Handle System.
# Make necessary values:
url = self.make_handle_URL(handle, overwrite=overwrite)
LOGGER.debug('PUT Request to '+url)
payload = json.dumps({'values':list_of_entries})
LOGGER.debug('PUT Request payload: '+payload)
head = self.__get_headers('PUT')
veri = self.__HTTPS_verify
# Make request:
resp = None
if self.__authentication_method == self.__auth_methods['user_pw']:
resp = self.__session.put(url, data=payload, headers=head, verify=veri)
elif self.__authentication_method == self.__auth_methods['cert']:
resp = self.__session.put(url, data=payload, headers=head, verify=veri, cert=self.__cert_object)
self.__log_request_response_to_file(
logger=REQUESTLOGGER,
op='PUT',
handle=handle,
url=url,
headers=head,
verify=veri,
resp=resp,
payload=payload)
# Check response for authentication issues:
if hsresponses.not_authenticated(resp):
raise HandleAuthenticationError(
operation=op,
handle=handle,
response=resp,
username=self.__username
)
return resp, payload
