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# Copyright (c) 2017-2018 Wind River Systems, 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 logging
import json
import tempfile
import os
import traceback
from keystoneauth1.exceptions import HttpError
from rest_framework import status
from rest_framework.response import Response
from rest_framework.views import APIView
from common.exceptions import VimDriverNewtonException
from newton_base.util import VimDriverUtils
from newton_base.openoapi.image import Images
logger = logging.getLogger(__name__)
class ImageFile(APIView):
service = {'service_type': 'image',
'interface': 'public'}
keys_mapping = [
("project_id", "tenantId"),
("disk_format", "imageType"),
("container_format", "containerFormat")
]
def get(self, request, vimid="", tenantid="", imageid=""):
logger.info("vimid, tenantid, imageid > %s,%s,%s" % (vimid, tenantid, imageid))
logger.debug("META, data> %s" % (request.META, request.data))
if not imageid or imageid == "":
msg = {
'error': "Operation image/file list is not available"
}
self._logger.warn("RESP with status, msg> %s , %s"
%(status, status.HTTP_404_NOT_FOUND))
return Response(data=msg,
status=status.HTTP_404_NOT_FOUND)
try:
# download image
status_code = status.HTTP_200_OK
return Response(data={'error':'to be implemented'}, status=status_code)
except VimDriverNewtonException as e:
return Response(data={'error': e.content}, status=e.status_code)
except HttpError as e:
logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
return Response(data=e.response.json(), status=e.http_status)
except Exception as e:
logger.error(traceback.format_exc())
return Response(data={'error': str(e)},
status=status.HTTP_500_INTERNAL_SERVER_ERROR)
def get_images(self, query="", vimid="", tenantid="", imageid=""):
# prepare request resource to vim instance
req_resouce = "v2/images"
if imageid:
req_resouce += "/%s" % imageid
elif query:
req_resouce += "?%s" % query
vim = VimDriverUtils.get_vim_info(vimid)
sess = VimDriverUtils.get_session(vim, tenantid)
resp = sess.get(req_resouce, endpoint_filter=self.service)
content = resp.json()
vim_dict = {
"vimName": vim["name"],
"vimId": vim["vimId"],
"tenantId": tenantid,
}
content.update(vim_dict)
if not imageid:
# convert the key naming in images
for image in content["images"]:
VimDriverUtils.replace_key_by_mapping(image,
self.keys_mapping)
else:
# convert the key naming in the image specified by id
#image = content.pop("image", None)
VimDriverUtils.replace_key_by_mapping(content,
self.keys_mapping)
#content.update(image)
return content, resp.status_code
def post(self, request, vimid="", tenantid="", imageid=""):
logger.info("vimid, tenantid, imageid > %s,%s,%s" % (vimid, tenantid, imageid))
logger.debug("META, data> %s" % (request.META, request.data))
if imageid and imageid != "":
msg = {
'error': "Operation image/file create with image id is not available"
}
self._logger.warn("RESP with status, msg> %s , %s"
%(status, status.HTTP_404_NOT_FOUND))
return Response(data=msg,
status=status.HTTP_404_NOT_FOUND)
try:
# get file name
image_file = request.FILES['file']
# check if created already: check name
query = "name=%s" % image_file.name
content, status_code = Images.get_images(query, vimid, tenantid)
existed = False
if status_code == 200:
for image in content["images"]:
if image["name"] == image_file.name:
existed = True
break
if existed == True:
vim_dict = {
"returnCode": 0,
}
return Response(data=image, status=status_code)
# not exist, download to temp file
file_name = image_file.name[:image_file.name.rfind('.')]
f = tempfile.NamedTemporaryFile(prefix="django_",
suffix=file_name,
delete=False)
for chunk in image_file.chunks():
f.write(chunk)
#upload to openstack
image_type = image_file.name[image_file.name.find('.') + 1:]
# prepare request resource to vim instance
req_resouce = "v2/images"
vim = VimDriverUtils.get_vim_info(vimid)
sess = VimDriverUtils.get_session(vim, tenantid)
image = {}
#req_body = json.JSONEncoder().encode({"image": image})
req_body = json.JSONEncoder().encode(image)
resp = sess.post(req_resouce, data=req_body,
endpoint_filter=self.service)
#resp_body = resp.json()["image"]
resp_body = resp.json()
#launch a thread to download image and upload to VIM
if resp.status_code == 201:
imageid = resp_body["id"]
logger.info("upload image: %s" % imageid)
self.transfer_image(vimid, tenantid, imageid, f)
logger.info("request '%s' success" % (req_resouce))
else:
logger.info("request '%s' failed with status: %s" % (req_resouce, resp.status_code))
return Response(data=resp_body, status=resp.status_code)
except VimDriverNewtonException as e:
return Response(data={'error': e.content}, status=e.status_code)
except HttpError as e:
logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
return Response(data=e.response.json(), status=e.http_status)
except Exception as e:
logger.error(traceback.format_exc())
return Response(data={'error': str(e)},
status=status.HTTP_500_INTERNAL_SERVER_ERROR)
finally:
f.close()
os.remove(f.name)
def transfer_image(self, vimid, tenantid, imageid, imagefd):
logger.debug("vimid, tenantid, imageid > %s,%s,%s" % (vimid, tenantid, imageid))
try:
# prepare request resource to vim instance
req_resouce = "v2/images/%s/file" % imageid
vim = VimDriverUtils.get_vim_info(vimid)
sess = VimDriverUtils.get_session(vim, tenantid)
#open imageurl
resp = sess.put(req_resouce, endpoint_filter=self.service, data=imagefd.read(),
headers={"Content-Type": "application/octet-stream",
"Accept": ""})
logger.debug("response status code of transfer_image %s" % resp.status_code)
return None
except HttpError as e:
logger.error("transfer_image, HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
return None
except Exception as e:
logger.error(traceback.format_exc())
logger.error("Failed to transfer_image:%s" % str(e))
return None
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