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# Copyright 2017 Wind River Systems, Inc.
# Copyright (c) 2017-2018 VMware, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# import os
import json
# import re
# import tempfile
# from django.core.files.uploadedfile import InMemoryUploadedFile
# from poster.encode import multipart_encode
# from poster.streaminghttp import register_openers
from rest_framework.views import APIView
from rest_framework.views import Response
from rest_framework.views import status
from multivimbroker.forwarder.base import BaseHandler
from multivimbroker.pub.utils.syscomm import originHeaders
from multivimbroker.pub.utils import syscomm
from multivimbroker.pub.msapi import extsys
class BaseServer(BaseHandler, APIView):
def get(self, request, vimid):
raise NotImplementedError()
def post(self, request, vimid):
raise NotImplementedError()
def put(self, request, vimid):
raise NotImplementedError()
def delete(self, request, vimid):
raise NotImplementedError()
def head(self, request, vimid):
raise NotImplementedError()
def patch(self, request, vimid):
raise NotImplementedError()
# proxy handler
class Identity(BaseServer):
def get(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body, "GET",
headers=originHeaders(request))
def post(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body, "POST",
headers=originHeaders(request))
class Registry(BaseServer):
def post(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body, "POST",
headers=originHeaders(request))
class UnRegistry(BaseServer):
def delete(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body,
"DELETE", headers=originHeaders(request))
class Extension(BaseServer):
def get(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body, "GET",
headers=originHeaders(request))
class VIMTypes(BaseServer):
def get(self, request):
return Response(data=syscomm.getVIMTypes(), status=status.HTTP_200_OK)
class CheckCapacity(BaseServer):
def post(self, request):
try:
body = json.loads(request.body)
except ValueError as e:
return Response(
data={'error': 'Invalidate request body %s.' % e},
status=status.HTTP_400_BAD_REQUEST)
ret = {"VIMs": []}
newbody = {
"vCPU": body.get("vCPU", 0),
"Memory": body.get("Memory", 0),
"Storage": body.get("Storage", 0)
}
for vim in body.get("VIMs", []):
url = request.get_full_path().replace(
"check_vim_capacity", "%s/capacity_check" % vim)
resp = self.send(vim, url, json.dumps(newbody), "POST",
headers=originHeaders(request))
if int(resp.status_code) != status.HTTP_200_OK:
continue
try:
resp_body = json.loads(resp.content)
except ValueError:
continue
if not resp_body.get("result", False):
continue
ret['VIMs'].append(vim)
return Response(data=ret, status=status.HTTP_200_OK)
# forward handler
class Forward(BaseServer):
def get(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body, "GET",
headers=originHeaders(request))
def post(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body, "POST",
headers=originHeaders(request))
def patch(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body, "PATCH",
headers=originHeaders(request))
def delete(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body,
"DELETE", headers=originHeaders(request))
def head(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body, "HEAD",
headers=originHeaders(request))
def put(self, request, vimid):
return self.send(vimid, request.get_full_path(), request.body, "PUT",
headers=originHeaders(request))
# API v1
# proxy handler
class APIv1Identity(Identity):
def get(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1Identity, self).get(request, vimid)
def post(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1Identity, self).post(request, vimid)
class APIv1Registry(Registry):
def post(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1Registry, self).post(request, vimid)
class APIv1UnRegistry(UnRegistry):
def delete(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1UnRegistry, self).delete(request, vimid)
class APIv1Extension(Extension):
def get(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1Extension, self).get(request, vimid)
class APIv1VIMTypes(VIMTypes):
def get(self, request):
return super(APIv1VIMTypes, self).get(request)
class APIv1CheckCapacity(CheckCapacity):
def post(self, request):
try:
body = json.loads(request.body)
except ValueError as e:
return Response(
data={'error': 'Invalidate request body %s.' % e},
status=status.HTTP_400_BAD_REQUEST)
ret = {"VIMs": []}
newbody = {
"vCPU": body.get("vCPU", 0),
"Memory": body.get("Memory", 0),
"Storage": body.get("Storage", 0)
}
for vim in body.get("VIMs", []):
cloud_owner = vim["cloud-owner"]
cloud_region_id = vim["cloud-region-id"]
url = request.get_full_path().replace(
"check_vim_capacity", "%s/%s/capacity_check" %
(cloud_owner, cloud_region_id))
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
resp = self.send(vimid, url, json.dumps(newbody), "POST",
headers=originHeaders(request))
if int(resp.status_code) != status.HTTP_200_OK:
continue
try:
resp_body = json.loads(resp.content)
except ValueError:
continue
if not resp_body.get("result", False):
continue
azCapInfo = resp_body.get("AZs", [])
vim["AZs"] = azCapInfo
ret['VIMs'].append(vim)
return Response(data=ret, status=status.HTTP_200_OK)
# forward handler
class APIv1Forward(Forward):
def get(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1Forward, self).get(request, vimid)
def post(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1Forward, self).post(request, vimid)
def patch(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1Forward, self).patch(request, vimid)
def delete(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1Forward, self).delete(request, vimid)
def head(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1Forward, self).head(request, vimid)
def put(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return super(APIv1Forward, self).put(request, vimid)
class APIv1InfraWorkload(BaseServer):
def post(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
content_type = request.META.get('CONTENT_TYPE', 'application/json')
if content_type.startswith("multipart"):
return self.__process_multipart(request, vimid)
return self.send(vimid, request.get_full_path(), request.body, "POST",
headers=originHeaders(request))
def get(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return self.send(vimid, request.get_full_path(), request.body, "GET",
headers=originHeaders(request))
def delete(self, request, cloud_owner, cloud_region_id):
vimid = extsys.encode_vim_id(cloud_owner, cloud_region_id)
return self.send(vimid, request.get_full_path(), request.body,
"DELETE", headers=originHeaders(request))
def __process_multipart(self, request, vimid):
return Response(
data={'error': 'multipart API is not supported yet'},
status=status.HTTP_400_BAD_REQUEST)
# try:
# API is depreciated due to poster not available in py3
# register_openers()
# dataDict = dict(request.data.iterlists())
# params = {}
# for key in dataDict.keys():
# dataObj = dataDict[key][0]
# if isinstance(dataObj, InMemoryUploadedFile):
# f = tempfile.NamedTemporaryFile(prefix="django_",
# suffix=dataObj._name,
# delete=False)
# f.write(dataObj.file.read())
# f.seek(dataObj.file.tell(), 0)
# dataObj.file.close()
# params[key] = open(f.name, 'rb')
# else:
# params[key] = dataObj
# datagen, headers = multipart_encode(params)
# regex = re.compile('^HTTP_')
# for key, value in request.META.iteritems():
# if key.startswith("HTTP_"):
# headers[regex.sub('', key).replace('_', '-')] = value
# resp = self.send(vimid, request.path, datagen, "POST",
# headers=headers, multipart=True)
# finally:
# for key in params or {}:
# refobj = params[key]
# if type(refobj) is not unicode:
# if refobj.closed is False:
# print (refobj.close())
# os.remove(refobj.name)
# return resp
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