226 lines
8.2 KiB
Python
226 lines
8.2 KiB
Python
# Copyright 2018 Wind River
|
|
#
|
|
# 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 glob
|
|
import json
|
|
import os
|
|
import shutil
|
|
import tarfile
|
|
import tempfile
|
|
import webob.dec
|
|
import webob.exc
|
|
|
|
from cgcs_patch.exceptions import PatchMismatchFailure
|
|
from cgcs_patch.exceptions import PatchValidationFailure
|
|
from cgcs_patch.patch_functions import PatchData
|
|
from cgcs_patch.patch_functions import PatchFile
|
|
from dcmanager.common import consts as dcmanager_consts
|
|
from dcorch.api.proxy.apps.dispatcher import APIDispatcher
|
|
from dcorch.api.proxy.common import constants as proxy_consts
|
|
from dcorch.api.proxy.common.service import Middleware
|
|
from dcorch.api.proxy.common import utils as proxy_utils
|
|
from dcorch.common import consts
|
|
from dcorch.common import context
|
|
from oslo_config import cfg
|
|
from oslo_log import log as logging
|
|
from oslo_service.wsgi import Request
|
|
from oslo_utils._i18n import _
|
|
|
|
from dcmanager.rpc import client as dcmanager_rpc_client
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
patch_opts = [
|
|
cfg.StrOpt('patch_vault',
|
|
default='/opt/patch-vault/',
|
|
help='file system for patch storage on SystemController'),
|
|
]
|
|
|
|
|
|
CONF = cfg.CONF
|
|
CONF.register_opts(patch_opts, CONF.type)
|
|
|
|
|
|
class PatchAPIController(Middleware):
|
|
|
|
ENDPOINT_TYPE = consts.ENDPOINT_TYPE_PATCHING
|
|
OK_STATUS_CODE = [
|
|
webob.exc.HTTPOk.code,
|
|
]
|
|
|
|
PATCH_META_DATA = 'metadata.xml'
|
|
SOFTWARE_VERSION = 'sw_version'
|
|
|
|
def __init__(self, app, conf):
|
|
super(PatchAPIController, self).__init__(app)
|
|
self.ctxt = context.get_admin_context()
|
|
self._default_dispatcher = APIDispatcher(app)
|
|
self.rpc_client = dcmanager_rpc_client.ManagerClient()
|
|
self.response_hander_map = {
|
|
proxy_consts.PATCH_ACTION_UPLOAD: self.patch_upload_req,
|
|
proxy_consts.PATCH_ACTION_UPLOAD_DIR: self.patch_upload_dir_req,
|
|
proxy_consts.PATCH_ACTION_DELETE: self.patch_delete_req,
|
|
proxy_consts.PATCH_ACTION_APPLY: self.notify,
|
|
proxy_consts.PATCH_ACTION_COMMIT: self.notify,
|
|
proxy_consts.PATCH_ACTION_REMOVE: self.notify,
|
|
}
|
|
|
|
@webob.dec.wsgify(RequestClass=Request)
|
|
def __call__(self, req):
|
|
# copy the request
|
|
request = req
|
|
application = self.process_request(req)
|
|
response = req.get_response(application)
|
|
return self.process_response(request, response)
|
|
|
|
def ok_response(self, response):
|
|
rc = True
|
|
# check if the request was successful
|
|
if response.status_int in self.OK_STATUS_CODE:
|
|
data = json.loads(response.text)
|
|
if 'error' in data and data["error"] != "":
|
|
rc = False
|
|
else:
|
|
rc = False
|
|
|
|
return rc
|
|
|
|
def get_patch_sw_version(self, filename):
|
|
abs_patch = os.path.abspath(filename)
|
|
try:
|
|
PatchFile.read_patch(abs_patch, metadata_only=True)
|
|
patch_data = PatchData()
|
|
patch_id = patch_data.parse_metadata(self.PATCH_META_DATA)
|
|
sw_version = patch_data.query_line(patch_id, self.SOFTWARE_VERSION)
|
|
except PatchValidationFailure:
|
|
msg = _("Patch validation failed during extraction")
|
|
LOG.exception(msg)
|
|
raise webob.exc.HTTPUnprocessableEntity(explanation=msg)
|
|
except PatchMismatchFailure:
|
|
msg = _("Patch Mismatch during extraction")
|
|
LOG.exception(msg)
|
|
raise webob.exc.HTTPUnprocessableEntity(explanation=msg)
|
|
except tarfile.TarError:
|
|
msg = _("Failed during patch extraction")
|
|
LOG.exception(msg)
|
|
raise webob.exc.HTTPUnprocessableEntity(explanation=msg)
|
|
|
|
return sw_version
|
|
|
|
def copy_patch_to_version_vault(self, patch):
|
|
versioned_vault = CONF.patching.patch_vault + \
|
|
self.get_patch_sw_version(patch)
|
|
if not os.path.isdir(versioned_vault):
|
|
os.makedirs(versioned_vault)
|
|
try:
|
|
shutil.copy(patch, versioned_vault)
|
|
except shutil.Error:
|
|
msg = _("Unable to store patch file (%s)") % patch
|
|
LOG.error(msg)
|
|
raise webob.exc.HTTPUnprocessableEntity(explanation=msg)
|
|
|
|
@staticmethod
|
|
def delete_patch_from_version_vault(patch):
|
|
vault = CONF.patching.patch_vault
|
|
for name in os.listdir(vault):
|
|
fn = os.path.join(vault, name, patch)
|
|
if os.path.isfile(fn):
|
|
LOG.debug("Deleting (%s)", fn)
|
|
try:
|
|
os.remove(fn)
|
|
return
|
|
except OSError:
|
|
msg = ("Unable to remove patch file (%s) from the central"
|
|
"storage." % fn)
|
|
raise webob.exc.HTTPUnprocessableEntity(explanation=msg)
|
|
LOG.info("Patch (%s) was not found in (%s)", patch, vault)
|
|
|
|
def store_patch_file(self, filename, fileno):
|
|
# the following copy method is taken from from api/controllers/root.py
|
|
# it is used for writing files from the http request stream chunk by
|
|
# chunk, rather than reading the file into memory as a whole
|
|
|
|
# write the patch to a temporary directory first
|
|
tempdir = tempfile.mkdtemp(prefix="patch_proxy_", dir='/scratch')
|
|
fn = tempdir + '/' + os.path.basename(filename)
|
|
dst = os.open(fn, os.O_WRONLY | os.O_CREAT)
|
|
size = 64 * 1024
|
|
n = size
|
|
while n >= size:
|
|
s = os.read(fileno, size)
|
|
n = os.write(dst, s)
|
|
os.close(dst)
|
|
|
|
# copy the patch to the versioned vault
|
|
self.copy_patch_to_version_vault(fn)
|
|
shutil.rmtree(tempdir)
|
|
|
|
def patch_upload_req(self, request, response):
|
|
# stores patch in the patch storage
|
|
file_item = request.POST['file']
|
|
self.store_patch_file(file_item.filename, file_item.file.fileno())
|
|
return response
|
|
|
|
def patch_upload_dir_req(self, request, response):
|
|
files = []
|
|
for key, path in request.GET.items():
|
|
LOG.info("upload-dir: Retrieving patches from %s" % path)
|
|
for f in glob.glob(path + '/*.patch'):
|
|
if os.path.isfile(f):
|
|
files.append(f)
|
|
|
|
for f in files:
|
|
self.copy_patch_to_version_vault(f)
|
|
|
|
return response
|
|
|
|
def notify(self, request, response):
|
|
# Send a RPC to dcmanager
|
|
LOG.info("Send RPC to dcmanager to set patching sync status to "
|
|
"unknown")
|
|
self.rpc_client.update_subcloud_endpoint_status(
|
|
self.ctxt,
|
|
endpoint_type=self.ENDPOINT_TYPE,
|
|
sync_status=dcmanager_consts.SYNC_STATUS_UNKNOWN)
|
|
return response
|
|
|
|
def patch_delete_req(self, request, response):
|
|
patch_ids = proxy_utils.get_routing_match_value(request.environ,
|
|
'patch_id')
|
|
LOG.info("Deleting patches: %s", patch_ids)
|
|
patch_list = os.path.normpath(patch_ids).split(os.path.sep)
|
|
for patch_file in patch_list:
|
|
LOG.debug("Patch file:(%s)", patch_file)
|
|
self.delete_patch_from_version_vault(os.path.basename(patch_file)
|
|
+ '.patch')
|
|
return response
|
|
|
|
def process_request(self, req):
|
|
if CONF.show_request:
|
|
LOG.info("Request URL: (%s)", req.url)
|
|
return self._default_dispatcher
|
|
|
|
def process_response(self, request, response):
|
|
if CONF.show_response:
|
|
LOG.info("Response: (%s)", str(response))
|
|
LOG.info("Response status: (%s)", response.status)
|
|
action = proxy_utils.get_routing_match_value(request.environ, 'action')
|
|
if self.ok_response(response) and action in self.response_hander_map:
|
|
handler = self.response_hander_map[action]
|
|
return handler(request, response)
|
|
else:
|
|
return response
|