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 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_non_root_one_item_dic_xml(self):
data = {'test1': 1}
# We have a key in this dict, and its value is an integer.
# XML is:
# <test1 quantum:type="int"
# xmlns="http://openstack.org/quantum/api/v2.0"
# xmlns:quantum="http://openstack.org/quantum/api/v2.0"
# xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
# 1</test1>
serializer = wsgi.XMLDictSerializer(attributes.get_attr_metadata())
result = serializer.serialize(data)
deserializer = wsgi.XMLDeserializer(attributes.get_attr_metadata())
new_data = deserializer.deserialize(result)['body']
self.assertEqual(data, new_data)
def test_empty_dic_xml(self):
data = {}
# Since it is an empty dict, we use quantum:type='dict' and
# an empty XML element to represent it. In addition, we use an
# virtual XML root _v_root to wrap the XML doc.
# XML is:
# <_v_root quantum:type="dict"
# xmlns="http://openstack.org/quantum/api/v2.0"
# xmlns:quantum="http://openstack.org/quantum/api/v2.0"
# xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" />
serializer = wsgi.XMLDictSerializer(attributes.get_attr_metadata())
result = serializer.serialize(data)
deserializer = wsgi.XMLDeserializer(attributes.get_attr_metadata())
new_data = deserializer.deserialize(result)['body']
self.assertEqual(data, new_data)
def test_None(self):
data = None
# Since it is None, we use xsi:nil='true'.
# In addition, we use an
# virtual XML root _v_root to wrap the XML doc.
# XML is:
# <_v_root xsi:nil="true"
# xmlns="http://openstack.org/quantum/api/v2.0"
# xmlns:quantum="http://openstack.org/quantum/api/v2.0"
# xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" />
serializer = wsgi.XMLDictSerializer(attributes.get_attr_metadata())
result = serializer.serialize(data)
deserializer = wsgi.XMLDeserializer(attributes.get_attr_metadata())
new_data = deserializer.deserialize(result)['body']
self.assertIsNone(new_data)
def test_non_root_two_items_dic_xml(self):
data = {'test1': 1, 'test2': '2'}
# We have no root element in this data, We will use a virtual
# root element _v_root to wrap the doct.
# The XML is:
# <_v_root xmlns="http://openstack.org/quantum/api/v2.0"
# xmlns:quantum="http://openstack.org/quantum/api/v2.0"
# xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
# <test1 quantum:type="int">1</test1><test2>2</test2>
# </_v_root>
serializer = wsgi.XMLDictSerializer(attributes.get_attr_metadata())
result = serializer.serialize(data)
deserializer = wsgi.XMLDeserializer(attributes.get_attr_metadata())
new_data = deserializer.deserialize(result)['body']
self.assertEqual(data, new_data)
def setUp(self):
super(WebTestCase, self).setUp()
json_deserializer = wsgi.JSONDeserializer()
xml_deserializer = wsgi.XMLDeserializer(attributes.get_attr_metadata())
self._deserializers = {
'application/json': json_deserializer,
'application/xml': xml_deserializer,
}
def setUp(self):
super(WebTestCase, self).setUp()
json_deserializer = wsgi.JSONDeserializer()
xml_deserializer = wsgi.XMLDeserializer(
attributes.get_attr_metadata())
self._deserializers = {
'application/json': json_deserializer,
'application/xml': xml_deserializer,
}
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
def serialize(self, data):
ctype = 'application/%s' % self.fmt
result = wsgi.Serializer(attributes.get_attr_metadata()).serialize(
data, ctype)
return result
# <int quantum:type="float">5.0</int> # Float text
# <dict quantum:type="dict" /> # Empty Dict
# <name>net1</name>
# <admin_state_up quantum:type="bool">True</admin_state_up> # Bool
# <test xsi:nil="true" /> # None
# <tenant_id>test-tenant</tenant_id>
# # We must have a namespace defined in root for prefix:external
# <prefix:external quantum:type="bool">True</prefix:external>
# <tests> # List
# <test><test1>value1</test1></test>
# <test><test3 quantum:type="int">3</test3>
# <test2 quantum:type="int">2</test2>
# </test></tests>
# </network>
metadata = attributes.get_attr_metadata()
ns = {'prefix': 'http://xxxx.yy.com'}
metadata[constants.EXT_NS] = ns
metadata['plurals'] = {'tests': 'test'}
serializer = wsgi.XMLDictSerializer(metadata)
result = serializer.serialize(NETWORK)
deserializer = wsgi.XMLDeserializer(metadata)
new_net = deserializer.deserialize(result)['body']
self.assertEqual(NETWORK, new_net)
def test_None(self):
data = None
# Since it is None, we use xsi:nil='true'.
# In addition, we use an
# virtual XML root _v_root to wrap the XML doc.
# XML is:
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
"""
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
def serialize(self, data):
ctype = 'application/%s' % self.fmt
result = wsgi.Serializer(
attributes.get_attr_metadata()).serialize(data, ctype)
return result
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
"""
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):
if request.path in ['/v2.0/floatingips','/v2.0/tenants'] and 'uos_staff' in request.context.roles:
uos_utils.uos_staff_act_as_admin(request)
if request.path in ['/v2.0/uos_resources.json'] and \
'routers' in request.params.getall('uos_resources') and \
len(request.params.getall('uos_resources')) == 1 and \
'uos_staff' in request.context.roles:
uos_utils.uos_staff_act_as_admin(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:
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(_('%(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)
if type(result) == dict and 'file' in result.keys():
content_disposition = "attachment; filename=%s" % result['name']
content_type = "application/binary; charset=UTF-8"
contents = result['contents'].decode('base64')
return file_response(request,status,content_type, content_disposition, contents)
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