broadview-lib/broadview_lib/config/agentconnection.py

105 lines
3.3 KiB
Python

#/*****************************************************************************
#*
#* (C) Copyright Broadcom Corporation 2015
#*
#* 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 requests
import sys
import urllib
from xml.etree import ElementTree
import json
class RequestFailed(Exception):
'''
class to represent a failed RESTful call
'''
def __init__(self, url, http_code, open_code, open_msg):
self._url = url
self._http_code = int(http_code)
self._open_code = int(open_code)
self._open_msg = open_msg
def __str__(self):
return repr((self._url, self._http_code, self._open_code, self._open_msg))
class AgentConnection():
def __init__(self, host, port, feature):
self.host = host
self.port = port
self.feature = feature # e.g., "bst"
def _is_ok(self, r):
return r.status_code == 200
def _raise_fail_if(self, url, r):
if not self._is_ok(r):
try:
j = r.json()["status"]
except:
try:
t = ElementTree.fromstring(r)
j = {"response_code": r.status_code,
"error_code": 0,
"msg": "XML failure response from web server"}
except:
j = {"response_code": r.status_code,
"error_code": 0,
"msg": "Unparsable response from web server"}
raise RequestFailed(url, j["response_code"], j["error_code"], j["msg"])
def makeRequest(self, request):
headers = {"Content-Type": "application/json"}
isGet = False
if request.getHttpMethod() == "GET":
isGet = True
if False and isGet:
payload = request.getjson().encode("utf-8")
if self.feature:
url = "http://%s:%d/broadview/%s/%s%s%s" % (self.host, self.port, self.feature, request.getHttpMethod(), "?req=", payload)
else:
url = "http://%s:%d/broadview/%s%s%s" % (self.host, self.port, request.getHttpMethod(), "?req=", payload)
r = requests.get(url, headers=headers)
else:
payload = request.getjson().encode("utf-8")
if self.feature:
url = "http://%s:%d/broadview/%s/%s" % (self.host, self.port, self.feature, request.getHttpMethod())
else:
url = "http://%s:%d/broadview/%s" % (self.host, self.port, request.getHttpMethod())
if isGet:
r = requests.get(url, data=payload, headers=headers)
else:
r = requests.post(url, data=payload, headers=headers)
json_data = {}
if r.status_code == 200:
try:
# Data can come back with leading.trailing spaces, which trips
# up requests' json parser. So get as test, string, and let
# Python json do the parsing
json_data = json.loads(r.text.strip())
except:
pass
self._raise_fail_if(url, r)
return (r.status_code, json_data)