def get(self):
try:
selector = self.get_query_argument(REST_QUERY_PARAM_SELECTOR, None)
app_log.debug("Query arguments %s" % self.request.query_arguments)
result = yield get.get_resource(self.idl,
self.resource_path,
self.schema,
self.request.path,
selector,
self.request.query_arguments,
fetch_readonly=True,
manager=self.ref_object.manager)
if result is None:
self.set_status(httplib.NOT_FOUND)
elif self.successful_query(result):
self.set_status(httplib.OK)
self.set_header(HTTP_HEADER_CONTENT_TYPE,
HTTP_CONTENT_TYPE_JSON)
self.write(json.dumps(result))
except APIException as e:
self.on_exception(e)
except Exception as e:
self.on_exception(e)
self.finish()
def get(self):
selector = self.get_query_argument(REST_QUERY_PARAM_SELECTOR, None)
app_log.debug("Query arguments %s" % self.request.query_arguments)
result = get.get_resource(self.idl, self.resource_path,
self.schema, self.request.path,
selector, self.request.query_arguments)
if result is None:
self.set_status(httplib.NOT_FOUND)
elif self.successful_query(result):
self.set_status(httplib.OK)
self.set_header(HTTP_HEADER_CONTENT_TYPE, HTTP_CONTENT_TYPE_JSON)
self.write(json.dumps(result))
self.finish()
def process_if_match(self):
if HTTP_HEADER_CONDITIONAL_IF_MATCH in self.request.headers:
selector = self.get_query_argument(REST_QUERY_PARAM_SELECTOR, None)
result = get.get_resource(self.idl, self.resource_path,
self.schema, self.request.path,
selector, self.request.query_arguments)
if result is None:
self.set_status(httplib.PRECONDITION_FAILED)
return False
match = False
etags = self.request.headers.get(HTTP_HEADER_CONDITIONAL_IF_MATCH,
"").split(',')
current_etag = self.compute_etag(json.dumps(result))
for e in etags:
if e == current_etag or e == '"*"':
match = True
break
if not match:
# If is a PUT operation and the change request state
# is already reflected in the current state of the
# target resource it must return 2xx(Succesful)
# https://tools.ietf.org/html/rfc7232#section-3.1
if self.request.method == REQUEST_TYPE_UPDATE:
data = json.loads(self.request.body)
if OVSDB_SCHEMA_CONFIG in data and \
data[OVSDB_SCHEMA_CONFIG] == \
result[OVSDB_SCHEMA_CONFIG]:
# Set PUT Successful code and finish
self.set_status(httplib.OK)
return False
# For POST, GET, DELETE, PATCH return precondition failed
self.set_status(httplib.PRECONDITION_FAILED)
return False
# Etag matches
return True
def process_if_match(self):
if HTTP_HEADER_CONDITIONAL_IF_MATCH in self.request.headers:
app_log.debug("Processing If-Match")
selector = self.get_query_argument(REST_QUERY_PARAM_SELECTOR, None)
query_arguments = self.request.query_arguments
result = None
from opsrest.handlers.ovsdbapi import OVSDBAPIHandler
if isinstance(self, OVSDBAPIHandler):
app_log.debug("If-Match is for OVSDBAPIHandler")
from opsrest import get
result = get.get_resource(self.idl, self.resource_path,
self.schema, self.request.path,
selector, query_arguments)
elif self.controller is not None:
app_log.debug("If-Match is for custom resource")
if 'resource_id' in self.path_kwargs:
item_id = self.path_kwargs['resource_id']
else:
item_id = None
app_log.debug("Using resource_id=%s" % item_id)
if item_id:
result = self.controller.get(item_id,
self.get_current_user(),
selector, query_arguments)
else:
result = self.controller.get_all(self.get_current_user(),
selector, query_arguments)
else:
raise TransactionFailed("Resource cannot handle If-Match")
if result is None:
app_log.debug("If-Match's result is empty")
self.set_status(httplib.PRECONDITION_FAILED)
return False
match = False
etags = self.request.headers.get(HTTP_HEADER_CONDITIONAL_IF_MATCH,
"").split(',')
current_etag = self.compute_etag(json.dumps(result))
for e in etags:
if e == current_etag or e == '"*"':
match = True
break
if not match:
# If is a PUT operation and the change request state
# is already reflected in the current state of the
# target resource it must return 2xx(Succesful)
# https://tools.ietf.org/html/rfc7232#section-3.1
if self.request.method == REQUEST_TYPE_UPDATE:
data = json.loads(self.request.body)
if OVSDB_SCHEMA_CONFIG in data and \
data[OVSDB_SCHEMA_CONFIG] == \
result[OVSDB_SCHEMA_CONFIG]:
# Set PUT Successful code and finish
self.set_status(httplib.OK)
return False
# For POST, GET, DELETE, PATCH return precondition failed
self.set_status(httplib.PRECONDITION_FAILED)
return False
# Etag matches
return True
def process_if_match(self):
if HTTP_HEADER_CONDITIONAL_IF_MATCH in self.request.headers:
app_log.debug("Processing If-Match")
selector = self.get_query_argument(REST_QUERY_PARAM_SELECTOR, None)
query_arguments = self.request.query_arguments
result = None
from opsrest.handlers.ovsdbapi import OVSDBAPIHandler
if isinstance(self, OVSDBAPIHandler):
app_log.debug("If-Match is for OVSDBAPIHandler")
from opsrest import get
result = yield get.get_resource(self.idl,
self.resource_path,
self.schema,
self.request.path,
selector,
query_arguments,
fetch_readonly=True)
elif self.controller is not None:
app_log.debug("If-Match is for custom resource")
if 'resource_id' in self.path_kwargs:
item_id = self.path_kwargs['resource_id']
else:
item_id = None
app_log.debug("Using resource_id=%s" % item_id)
if item_id:
result = yield self.controller.get(item_id,
self.get_current_user(),
selector,
query_arguments)
else:
result = \
yield self.controller.get_all(self.get_current_user(),
selector,
query_arguments)
else:
raise TransactionFailed("Resource cannot handle If-Match")
if result is None:
app_log.debug("If-Match's result is empty")
self.set_status(httplib.PRECONDITION_FAILED)
raise gen.Return(False)
match = False
etags = self.request.headers.get(HTTP_HEADER_CONDITIONAL_IF_MATCH,
"").split(',')
app_log.debug("Header Etag: %s" % etags)
current_etag = self.compute_etag(json.dumps(result))
app_log.debug("Current etag: %s" % current_etag)
for e in etags:
if e == current_etag or e == '"*"':
match = True
break
if not match:
# If is a PUT operation and the change request state
# is already reflected in the current state of the
# target resource it must return 2xx(Succesful)
# https://tools.ietf.org/html/rfc7232#section-3.1
if self.request.method == REQUEST_TYPE_UPDATE:
data = json.loads(self.request.body)
if OVSDB_SCHEMA_CONFIG in data and \
data[OVSDB_SCHEMA_CONFIG] == \
result[OVSDB_SCHEMA_CONFIG]:
# Set PUT Successful code and finish
self.set_status(httplib.OK)
raise gen.Return(False)
# For POST, GET, DELETE, PATCH return precondition failed
self.set_status(httplib.PRECONDITION_FAILED)
raise gen.Return(False)
# Etag matches
raise gen.Return(True)
