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# Copyright (c) 2017 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.
import sys
import traceback
import logging
import urllib2
import uuid
import httplib
import httplib2
from rest_framework import status
from kilo.pub.config.config import MSB_SERVICE_IP, MSB_SERVICE_PORT
rest_no_auth, rest_oneway_auth, rest_bothway_auth = 0, 1, 2
HTTP_200_OK, HTTP_201_CREATED, HTTP_204_NO_CONTENT, HTTP_202_ACCEPTED = '200', '201', '204', '202'
status_ok_list = [HTTP_200_OK, HTTP_201_CREATED, HTTP_204_NO_CONTENT, HTTP_202_ACCEPTED]
HTTP_404_NOTFOUND, HTTP_403_FORBIDDEN, HTTP_401_UNAUTHORIZED, HTTP_400_BADREQUEST = '404', '403', '401', '400'
MAX_RETRY_TIME = 3
logger = logging.getLogger(__name__)
def call_req(base_url, user, passwd, auth_type,
resource, method, extra_headers='', content=''):
callid = str(uuid.uuid1())
# logger.debug("[%s]call_req('%s','%s','%s',%s,'%s','%s','%s')" % (
# callid, base_url, user, passwd, auth_type, resource, method, content))
ret = None
resp_status = None
try:
full_url = combine_url(base_url, resource)
headers = {
'content-type': 'application/json',
'accept': 'application/json'
}
if extra_headers:
headers.update(extra_headers)
if user:
headers['Authorization'] = \
'Basic ' + ('%s:%s' % (user, passwd)).encode("base64")
ca_certs = None
for retry_times in range(MAX_RETRY_TIME):
http = httplib2.Http(
ca_certs=ca_certs,
disable_ssl_certificate_validation=(auth_type == rest_no_auth))
http.follow_all_redirects = True
try:
resp, resp_content = http.request(full_url,
method=method.upper(),
body=content,
headers=headers)
resp_status, resp_body = \
resp['status'], resp_content.decode('UTF-8')
# logger.debug("[%s][%d]status=%s,resp_body=%s)" %
# (callid, retry_times, resp_status, resp_body))
if resp_status in status_ok_list:
ret = [0, resp_body, resp_status]
else:
ret = [1, resp_body, resp_status]
break
except httplib.ResponseNotReady:
# logger.debug("retry_times=%d", retry_times)
ret = [1, "Unable to connect to %s" % full_url, resp_status]
continue
except urllib2.URLError as err:
ret = [2, str(err), resp_status]
except Exception:
logger.error(traceback.format_exc())
logger.error("[%s]ret=%s" % (callid, str(sys.exc_info())))
if not resp_status:
resp_status = status.HTTP_500_INTERNAL_SERVER_ERROR
ret = [3, str(sys.exc_info()), resp_status]
# logger.debug("[%s]ret=%s" % (callid, str(ret)))
return ret
def req_by_msb(resource, method, content=''):
base_url = "http://%s:%s/" % (MSB_SERVICE_IP, MSB_SERVICE_PORT)
# logger.debug("request--get::> %s" % "33")
return call_req(base_url, "", "", rest_no_auth,
resource, method, "", content)
def req_to_vim(base_url, resource, method, extra_headers='', content=''):
return call_req(base_url, "", "", rest_no_auth,
resource, method, extra_headers, content)
def combine_url(base_url, resource):
full_url = None
if not resource:
return base_url
if base_url.endswith('/') and resource.startswith('/'):
full_url = base_url[:-1] + resource
elif base_url.endswith('/') and not resource.startswith('/'):
full_url = base_url + resource
elif not base_url.endswith('/') and resource.startswith('/'):
full_url = base_url + resource
else:
full_url = base_url + '/' + resource
return full_url
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