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# Copyright 2017 ZTE Corporation.
#
# 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 shutil
import logging
import tempfile
import traceback
import urllib2
import zipfile
logger = logging.getLogger(__name__)
def make_dirs(path):
if not os.path.exists(path):
os.makedirs(path, 0777)
def delete_dirs(path):
try:
if os.path.exists(path):
shutil.rmtree(path)
except Exception as e:
logger.error(traceback.format_exc())
logger.error("Failed to delete %s:%s", path, e.message)
def download_file_from_http(url, local_dir, file_name):
local_file_name = os.path.join(local_dir, file_name)
is_download_ok = False
try:
make_dirs(local_dir)
r = urllib2.Request(url)
req = urllib2.urlopen(r)
save_file = open(local_file_name, 'wb')
save_file.write(req.read())
save_file.close()
req.close()
is_download_ok = True
except:
logger.error(traceback.format_exc())
logger.error("Failed to download %s to %s.", url, local_file_name)
return is_download_ok, local_file_name
def unzip_file(zip_src, dst_dir, csar_path):
if os.path.exists(zip_src):
fz = zipfile.ZipFile(zip_src, 'r')
for file in fz.namelist():
fz.extract(file, dst_dir)
return os.path.join(dst_dir, csar_path)
else:
return ""
def unzip_csar_to_tmp(zip_src):
dirpath = tempfile.mkdtemp()
zip_ref = zipfile.ZipFile(zip_src, 'r')
zip_ref.extractall(dirpath)
return dirpath
def get_artifact_path(vnf_path, artifact_file):
for root, dirs, files in os.walk(vnf_path):
if artifact_file in files:
return os.path.join(root, artifact_file)
return None
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