def handle(self, request, response):
xml_deserializer = wsgi.XMLDeserializer(attributes.get_attr_metadata())
deserializers = {
'application/xml': xml_deserializer,
'application/json': wsgi.JSONDeserializer()
}
xml_serializer = wsgi.XMLDictSerializer(attributes.get_attr_metadata())
serializers = {
'application/xml': xml_serializer,
'application/json': wsgi.JSONDictSerializer()
}
format_types = {'xml': 'application/xml', 'json': 'application/json'}
path = [part for part in request.path_url.split("/") if part]
id = path[-1].split('.')[0]
content_type = format_types.get(None,
request.best_match_content_type())
deserializer = deserializers.get(content_type)
serializer = serializers.get(content_type)
body = None
if request.body:
body = deserializer.deserialize(request.body)['body']
api_response = self._plugin.post_update_port(request.context, id, body)
return serializer.serialize({"port": api_response})
def test_json_with_unicode(self):
input_dict = dict(servers=dict(a=(2, u'\u7f51\u7edc')))
expected_json = b'{"servers":{"a":[2,"\\u7f51\\u7edc"]}}'
serializer = wsgi.JSONDictSerializer()
result = serializer.serialize(input_dict)
result = result.replace(b'\n', b'').replace(b' ', b'')
self.assertEqual(expected_json, result)
def test_json_with_utf8(self):
input_dict = dict(servers=dict(a=(2, '\xe7\xbd\x91\xe7\xbb\x9c')))
expected_json = '{"servers":{"a":[2,"\\u7f51\\u7edc"]}}'
serializer = wsgi.JSONDictSerializer()
result = serializer.serialize(input_dict)
result = result.replace('\n', '').replace(' ', '')
self.assertEqual(expected_json, result)
def test_json(self):
input_dict = dict(servers=dict(a=(2, 3)))
expected_json = b'{"servers":{"a":[2,3]}}'
serializer = wsgi.JSONDictSerializer()
result = serializer.serialize(input_dict)
result = result.replace(b'\n', b'').replace(b' ', b'')
self.assertEqual(expected_json, result)
def convert_exception_to_http_exc(e, faults, language):
serializer = wsgi.JSONDictSerializer()
e = translate(e, language)
body = serializer.serialize(
{'NeutronError': get_exception_data(e)})
kwargs = {'body': body, 'content_type': 'application/json'}
if isinstance(e, exc.HTTPException):
# already an HTTP error, just update with content type and body
e.body = body
e.content_type = kwargs['content_type']
return e
if isinstance(e, (exceptions.NeutronException, netaddr.AddrFormatError,
oslo_policy.PolicyNotAuthorized)):
for fault in faults:
if isinstance(e, fault):
mapped_exc = faults[fault]
break
else:
mapped_exc = exc.HTTPInternalServerError
return mapped_exc(**kwargs)
if isinstance(e, NotImplementedError):
# NOTE(armando-migliaccio): from a client standpoint
# it makes sense to receive these errors, because
# extensions may or may not be implemented by
# the underlying plugin. So if something goes south,
# because a plugin does not implement a feature,
# returning 500 is definitely confusing.
kwargs['body'] = serializer.serialize(
{'NotImplementedError': get_exception_data(e)})
return exc.HTTPNotImplemented(**kwargs)
# NOTE(jkoelker) Everything else is 500
# Do not expose details of 500 error to clients.
msg = _('Request Failed: internal server error while '
'processing your request.')
msg = translate(msg, language)
kwargs['body'] = serializer.serialize(
{'NeutronError': get_exception_data(exc.HTTPInternalServerError(msg))})
return exc.HTTPInternalServerError(**kwargs)
def convert_exception_to_http_exc(e, faults, language):
serializer = wsgi.JSONDictSerializer()
if isinstance(e, exceptions.MultipleExceptions):
converted_exceptions = [
convert_exception_to_http_exc(inner, faults, language)
for inner in e.inner_exceptions
]
# if no internal exceptions, will be handled as single exception
if converted_exceptions:
codes = {c.code for c in converted_exceptions}
if len(codes) == 1:
# all error codes are the same so we can maintain the code
# and just concatenate the bodies
joined_msg = "\n".join(
(jsonutils.loads(c.body)['NeutronError']['message']
for c in converted_exceptions))
new_body = jsonutils.loads(converted_exceptions[0].body)
new_body['NeutronError']['message'] = joined_msg
converted_exceptions[0].body = serializer.serialize(new_body)
return converted_exceptions[0]
else:
# multiple error types so we turn it into a Conflict with the
# inner codes and bodies packed in
new_exception = exceptions.Conflict()
inner_error_strings = []
for c in converted_exceptions:
c_body = jsonutils.loads(c.body)
err = ('HTTP %s %s: %s' %
(c.code, c_body['NeutronError']['type'],
c_body['NeutronError']['message']))
inner_error_strings.append(err)
new_exception.msg = "\n".join(inner_error_strings)
return convert_exception_to_http_exc(new_exception, faults,
language)
e = translate(e, language)
body = serializer.serialize({'NeutronError': get_exception_data(e)})
kwargs = {'body': body, 'content_type': 'application/json'}
if isinstance(e, exc.HTTPException):
# already an HTTP error, just update with content type and body
e.body = body
e.content_type = kwargs['content_type']
return e
faults_tuple = tuple(faults.keys()) + (exceptions.NeutronException, )
if isinstance(e, faults_tuple):
for fault in faults:
if isinstance(e, fault):
mapped_exc = faults[fault]
break
else:
mapped_exc = exc.HTTPInternalServerError
return mapped_exc(**kwargs)
if isinstance(e, NotImplementedError):
# NOTE(armando-migliaccio): from a client standpoint
# it makes sense to receive these errors, because
# extensions may or may not be implemented by
# the underlying plugin. So if something goes south,
# because a plugin does not implement a feature,
# returning 500 is definitely confusing.
kwargs['body'] = serializer.serialize(
{'NotImplementedError': get_exception_data(e)})
return exc.HTTPNotImplemented(**kwargs)
# NOTE(jkoelker) Everything else is 500
# Do not expose details of 500 error to clients.
msg = _('Request Failed: internal server error while '
'processing your request.')
msg = translate(msg, language)
kwargs['body'] = serializer.serialize(
{'NeutronError': get_exception_data(exc.HTTPInternalServerError(msg))})
return exc.HTTPInternalServerError(**kwargs)
def Resource(controller,
faults=None,
deserializers=None,
serializers=None,
action_status=None):
"""Represents an API entity resource and the associated serialization and
deserialization logic
"""
default_deserializers = {'application/json': wsgi.JSONDeserializer()}
default_serializers = {'application/json': wsgi.JSONDictSerializer()}
format_types = {'json': 'application/json'}
action_status = action_status or dict(create=201, delete=204)
default_deserializers.update(deserializers or {})
default_serializers.update(serializers or {})
deserializers = default_deserializers
serializers = default_serializers
faults = faults or {}
@webob.dec.wsgify(RequestClass=Request)
def resource(request):
route_args = request.environ.get('wsgiorg.routing_args')
if route_args:
args = route_args[1].copy()
else:
args = {}
# NOTE(jkoelker) by now the controller is already found, remove
# it from the args if it is in the matchdict
args.pop('controller', None)
fmt = args.pop('format', None)
action = args.pop('action', None)
content_type = format_types.get(fmt, request.best_match_content_type())
language = request.best_match_language()
deserializer = deserializers.get(content_type)
serializer = serializers.get(content_type)
try:
if request.body:
args['body'] = deserializer.deserialize(request.body)['body']
# Routes library is dumb and cuts off everything after last dot (.)
# as format. At the same time, it doesn't enforce format suffix,
# which combined makes it impossible to pass a 'id' with dots
# included (the last section after the last dot is lost). This is
# important for some API extensions like tags where the id is
# really a tag name that can contain special characters.
#
# To work around the Routes behaviour, we will attach the suffix
# back to id if it's not one of supported formats (atm json only).
# This of course won't work for the corner case of a tag name that
# actually ends with '.json', but there seems to be no better way
# to tackle it without breaking API backwards compatibility.
if fmt is not None and fmt not in format_types:
args['id'] = '.'.join([args['id'], fmt])
revision_number = api_common.check_request_for_revision_constraint(
request)
if revision_number is not None:
request.context.set_transaction_constraint(
controller._collection, args['id'], revision_number)
method = getattr(controller, action)
result = method(request=request, **args)
except Exception as e:
mapped_exc = api_common.convert_exception_to_http_exc(
e, faults, language)
if hasattr(mapped_exc, 'code') and 400 <= mapped_exc.code < 500:
LOG.info('%(action)s failed (client error): %(exc)s', {
'action': action,
'exc': mapped_exc
})
else:
LOG.exception('%(action)s failed: %(details)s', {
'action': action,
'details': utils.extract_exc_details(e),
})
raise mapped_exc
status = action_status.get(action, 200)
body = serializer.serialize(result)
# NOTE(jkoelker) Comply with RFC2616 section 9.7
if status == 204:
content_type = ''
body = None
return webob.Response(request=request,
status=status,
content_type=content_type,
body=body)
# NOTE(blogan): this is something that is needed for the transition to
# pecan. This will allow the pecan code to have a handle on the controller
# for an extension so it can reuse the code instead of forcing every
# extension to rewrite the code for use with pecan.
setattr(resource, 'controller', controller)
setattr(resource, 'action_status', action_status)
return resource
def Resource(controller, faults=None, deserializers=None, serializers=None):
"""Represents an API entity resource and the associated serialization and
deserialization logic
"""
xml_deserializer = wsgi.XMLDeserializer(attributes.get_attr_metadata())
default_deserializers = {
'application/xml': xml_deserializer,
'application/json': wsgi.JSONDeserializer()
}
xml_serializer = wsgi.XMLDictSerializer(attributes.get_attr_metadata())
default_serializers = {
'application/xml': xml_serializer,
'application/json': wsgi.JSONDictSerializer()
}
format_types = {'xml': 'application/xml', 'json': 'application/json'}
action_status = dict(create=201, delete=204)
default_deserializers.update(deserializers or {})
default_serializers.update(serializers or {})
deserializers = default_deserializers
serializers = default_serializers
faults = faults or {}
#neutron/api/v2/base.py 789 wsgi_resource.Resource(controller, FAULT_MAP)
#FAULT_MAP :neutron/api/v2/base.py 38
@webob.dec.wsgify(RequestClass=Request)
def resource(request):
# #brk(host="10.10.12.21", port=49175)
# #add by xm-2015.7.8：G-cloud7.0区域权限控制，
# #根据api请求中是否附件resource_type及是否resource_type=0/1来区分用户角色
# #resource_type = request.params.get('resource_type', None)
# resource_type = request.environ.get('HTTP_G_AUTH_RESOURCETYPE', None)
# #resource_type = request.headers.environ.get('HTTP_G_AUTH_RESOURCETYPE', None)
# LOG.debug(_('resource_type_xm: %(resource_type)s'), {'resource_type': resource_type})
# if resource_type == '0':
# request.context.roles = list(set(request.context.roles) - set(['admin']))
# request.context.is_admin = False
# elif resource_type == '1':
# request.context.roles = list(set(request.context.roles) | set(['admin']))
# request.context.is_admin = True
# #end-2015.7.8
route_args = request.environ.get('wsgiorg.routing_args')
if route_args:
args = route_args[1].copy()
else:
args = {}
# NOTE(jkoelker) by now the controller is already found, remove
# it from the args if it is in the matchdict
args.pop('controller', None)
fmt = args.pop('format', None)
action = args.pop('action', None)
content_type = format_types.get(fmt, request.best_match_content_type())
language = request.best_match_language()
deserializer = deserializers.get(content_type)
serializer = serializers.get(content_type)
try:
if request.body:
args['body'] = deserializer.deserialize(request.body)['body']
#首先进入/usr/lib/python2.7/site-packages/webob/request.py(671)_body__get() 然后return 到/usr/lib/python2.7/site-packages/neutron/wsgi.py(599)deserialize()
method = getattr(controller, action)
#pdb.set_trace()
result = method(request=request, **args)
except (exceptions.NeutronException, netaddr.AddrFormatError) as e:
#faults = {<class 'neutron.common.exceptions.NotAuthorized'>: <class 'webob.exc.HTTPForbidden'>,
# <class 'neutron.common.exceptions.Conflict'>: <class 'webob.exc.HTTPConflict'>,
# <class 'neutron.common.exceptions.NotFound'>: <class 'webob.exc.HTTPNotFound'>,
# <class 'neutron.common.exceptions.ServiceUnavailable'>: <class 'webob.exc.HTTPServiceUnavailable'>,
# <class 'netaddr.core.AddrFormatError'>: <class 'webob.exc.HTTPBadRequest'>,
# <class 'neutron.common.exceptions.BadRequest'>: <class 'webob.exc.HTTPBadRequest'>,
# <class 'neutron.common.exceptions.InUse'>: <class 'webob.exc.HTTPConflict'>}
for fault in faults:
if isinstance(e, fault):
mapped_exc = faults[fault]
break
else:
if e.code and e.code != 500:
mapped_exc = webob.exc.HTTPClientError
else:
mapped_exc = webob.exc.HTTPInternalServerError
if 400 <= mapped_exc.code < 500:
LOG.info(_('%(action)s failed (client error): %(exc)s'), {
'action': action,
'exc': e
})
else:
LOG.exception(_('%s failed'), action)
e = translate(e, language)
body = serializer.serialize(
{'NeutronError': get_exception_data(e)})
kwargs = {'body': body, 'content_type': content_type}
raise mapped_exc(**kwargs)
except webob.exc.HTTPException as e:
type_, value, tb = sys.exc_info()
LOG.exception(_('%s failed'), action)
translate(e, language)
value.body = serializer.serialize(
{'NeutronError': get_exception_data(e)})
value.content_type = content_type
six.reraise(type_, value, tb)
except NotImplementedError as e:
e = translate(e, language)
# NOTE(armando-migliaccio): from a client standpoint
# it makes sense to receive these errors, because
# extensions may or may not be implemented by
# the underlying plugin. So if something goes south,
# because a plugin does not implement a feature,
# returning 500 is definitely confusing.
body = serializer.serialize(
{'NotImplementedError': get_exception_data(e)})
kwargs = {'body': body, 'content_type': content_type}
raise webob.exc.HTTPNotImplemented(**kwargs)
except Exception:
# NOTE(jkoelker) Everything else is 500
LOG.exception(_('%s failed'), action)
# Do not expose details of 500 error to clients.
msg = _('Request Failed: internal server error while '
'processing your request.')
msg = translate(msg, language)
body = serializer.serialize({
'NeutronError':
get_exception_data(webob.exc.HTTPInternalServerError(msg))
})
kwargs = {'body': body, 'content_type': content_type}
raise webob.exc.HTTPInternalServerError(**kwargs)
status = action_status.get(action, 200)
body = serializer.serialize(result)
# NOTE(jkoelker) Comply with RFC2616 section 9.7
if status == 204:
content_type = ''
body = None
return webob.Response(request=request,
status=status,
content_type=content_type,
body=body)
return resource
def Resource(controller, faults=None, deserializers=None, serializers=None):
"""Represents an API entity resource and the associated serialization and
deserialization logic
"""
default_deserializers = {'application/json': wsgi.JSONDeserializer()}
default_serializers = {'application/json': wsgi.JSONDictSerializer()}
format_types = {'json': 'application/json'}
action_status = dict(create=201, delete=204)
default_deserializers.update(deserializers or {})
default_serializers.update(serializers or {})
deserializers = default_deserializers
serializers = default_serializers
faults = faults or {}
@webob.dec.wsgify(RequestClass=Request)
def resource(request):
route_args = request.environ.get('wsgiorg.routing_args')
if route_args:
args = route_args[1].copy()
else:
args = {}
# NOTE(jkoelker) by now the controller is already found, remove
# it from the args if it is in the matchdict
args.pop('controller', None)
fmt = args.pop('format', None)
action = args.pop('action', None)
content_type = format_types.get(fmt, request.best_match_content_type())
language = request.best_match_language()
deserializer = deserializers.get(content_type)
serializer = serializers.get(content_type)
try:
if request.body:
args['body'] = deserializer.deserialize(request.body)['body']
method = getattr(controller, action)
result = method(request=request, **args)
except (exceptions.NeutronException, netaddr.AddrFormatError,
oslo_policy.PolicyNotAuthorized) as e:
for fault in faults:
if isinstance(e, fault):
mapped_exc = faults[fault]
break
else:
mapped_exc = webob.exc.HTTPInternalServerError
if 400 <= mapped_exc.code < 500:
LOG.info(_LI('%(action)s failed (client error): %(exc)s'), {
'action': action,
'exc': e
})
else:
LOG.exception(_LE('%s failed'), action)
e = translate(e, language)
body = serializer.serialize(
{'NeutronError': get_exception_data(e)})
kwargs = {'body': body, 'content_type': content_type}
raise mapped_exc(**kwargs)
except webob.exc.HTTPException as e:
type_, value, tb = sys.exc_info()
LOG.exception(_LE('%s failed'), action)
translate(e, language)
value.body = serializer.serialize(
{'NeutronError': get_exception_data(e)})
value.content_type = content_type
six.reraise(type_, value, tb)
except NotImplementedError as e:
e = translate(e, language)
# NOTE(armando-migliaccio): from a client standpoint
# it makes sense to receive these errors, because
# extensions may or may not be implemented by
# the underlying plugin. So if something goes south,
# because a plugin does not implement a feature,
# returning 500 is definitely confusing.
body = serializer.serialize(
{'NotImplementedError': get_exception_data(e)})
kwargs = {'body': body, 'content_type': content_type}
raise webob.exc.HTTPNotImplemented(**kwargs)
except Exception:
# NOTE(jkoelker) Everything else is 500
LOG.exception(_LE('%s failed'), action)
# Do not expose details of 500 error to clients.
msg = _('Request Failed: internal server error while '
'processing your request.')
msg = translate(msg, language)
body = serializer.serialize({
'NeutronError':
get_exception_data(webob.exc.HTTPInternalServerError(msg))
})
kwargs = {'body': body, 'content_type': content_type}
raise webob.exc.HTTPInternalServerError(**kwargs)
status = action_status.get(action, 200)
body = serializer.serialize(result)
# NOTE(jkoelker) Comply with RFC2616 section 9.7
if status == 204:
content_type = ''
body = None
return webob.Response(request=request,
status=status,
content_type=content_type,
body=body)
return resource
def Resource(controller,
faults=None,
deserializers=None,
serializers=None,
action_status=None):
"""Represents an API entity resource and the associated serialization and
deserialization logic
"""
default_deserializers = {'application/json': wsgi.JSONDeserializer()}
default_serializers = {'application/json': wsgi.JSONDictSerializer()}
format_types = {'json': 'application/json'}
action_status = action_status or dict(create=201, delete=204)
default_deserializers.update(deserializers or {})
default_serializers.update(serializers or {})
deserializers = default_deserializers
serializers = default_serializers
faults = faults or {}
@webob.dec.wsgify(RequestClass=Request)
def resource(request):
route_args = request.environ.get('wsgiorg.routing_args')
if route_args:
args = route_args[1].copy()
else:
args = {}
# NOTE(jkoelker) by now the controller is already found, remove
# it from the args if it is in the matchdict
args.pop('controller', None)
fmt = args.pop('format', None)
action = args.pop('action', None)
content_type = format_types.get(fmt, request.best_match_content_type())
language = request.best_match_language()
deserializer = deserializers.get(content_type)
serializer = serializers.get(content_type)
try:
if request.body:
args['body'] = deserializer.deserialize(request.body)['body']
method = getattr(controller, action)
result = method(request=request, **args)
except Exception as e:
mapped_exc = api_common.convert_exception_to_http_exc(
e, faults, language)
if hasattr(mapped_exc, 'code') and 400 <= mapped_exc.code < 500:
LOG.info(_LI('%(action)s failed (client error): %(exc)s'), {
'action': action,
'exc': mapped_exc
})
else:
LOG.exception(_LE('%(action)s failed: %(details)s'), {
'action': action,
'details': utils.extract_exc_details(e),
})
raise mapped_exc
status = action_status.get(action, 200)
body = serializer.serialize(result)
# NOTE(jkoelker) Comply with RFC2616 section 9.7
if status == 204:
content_type = ''
body = None
return webob.Response(request=request,
status=status,
content_type=content_type,
body=body)
# NOTE(blogan): this is something that is needed for the transition to
# pecan. This will allow the pecan code to have a handle on the controller
# for an extension so it can reuse the code instead of forcing every
# extension to rewrite the code for use with pecan.
setattr(resource, 'controller', controller)
return resource
def Resource(controller, faults=None, deserializers=None, serializers=None):
"""Represents an API entity resource and the associated serialization and
deserialization logic
"""
xml_deserializer = wsgi.XMLDeserializer(attributes.get_attr_metadata())
default_deserializers = {
'application/xml': xml_deserializer,
'application/json': wsgi.JSONDeserializer()
}
xml_serializer = wsgi.XMLDictSerializer(attributes.get_attr_metadata())
default_serializers = {
'application/xml': xml_serializer,
'application/json': wsgi.JSONDictSerializer()
}
format_types = {'xml': 'application/xml', 'json': 'application/json'}
action_status = dict(create=201, delete=204)
default_deserializers.update(deserializers or {})
default_serializers.update(serializers or {})
deserializers = default_deserializers
serializers = default_serializers
faults = faults or {}
@webob.dec.wsgify(RequestClass=Request)
def resource(request):
route_args = request.environ.get('wsgiorg.routing_args')
if route_args:
args = route_args[1].copy()
else:
args = {}
# NOTE(jkoelker) by now the controller is already found, remove
# it from the args if it is in the matchdict
args.pop('controller', None)
fmt = args.pop('format', None)
action = args.pop('action', None)
content_type = format_types.get(fmt, request.best_match_content_type())
language = request.best_match_language()
deserializer = deserializers.get(content_type)
serializer = serializers.get(content_type)
try:
if request.body:
args['body'] = deserializer.deserialize(request.body)['body']
method = getattr(controller, action)
result = method(request=request, **args)
except (exceptions.NeutronException, netaddr.AddrFormatError) as e:
LOG.exception(_('%s failed'), action)
e = translate(e, language)
# following structure is expected by python-neutronclient
err_data = {
'type': e.__class__.__name__,
'message': e,
'detail': ''
}
body = serializer.serialize({'NeutronError': err_data})
kwargs = {'body': body, 'content_type': content_type}
for fault in faults:
if isinstance(e, fault):
raise faults[fault](**kwargs)
raise webob.exc.HTTPInternalServerError(**kwargs)
except webob.exc.HTTPException as e:
LOG.exception(_('%s failed'), action)
translate(e, language)
e.body = serializer.serialize({'NeutronError': e})
e.content_type = content_type
raise
except NotImplementedError as e:
e = translate(e, language)
# NOTE(armando-migliaccio): from a client standpoint
# it makes sense to receive these errors, because
# extensions may or may not be implemented by
# the underlying plugin. So if something goes south,
# because a plugin does not implement a feature,
# returning 500 is definitely confusing.
body = serializer.serialize({'NotImplementedError': e.message})
kwargs = {'body': body, 'content_type': content_type}
raise webob.exc.HTTPNotImplemented(**kwargs)
except Exception as e:
# NOTE(jkoelker) Everything else is 500
LOG.exception(_('%s failed'), action)
# Do not expose details of 500 error to clients.
msg = _('Request Failed: internal server error while '
'processing your request.')
msg = translate(msg, language)
body = serializer.serialize({'NeutronError': msg})
kwargs = {'body': body, 'content_type': content_type}
raise webob.exc.HTTPInternalServerError(**kwargs)
status = action_status.get(action, 200)
body = serializer.serialize(result)
# NOTE(jkoelker) Comply with RFC2616 section 9.7
if status == 204:
content_type = ''
body = None
return webob.Response(request=request,
status=status,
content_type=content_type,
body=body)
return resource
