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# -*- coding: utf-8 -*-
'''
Copyright 2017 [email protected]
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Icinga 2 API client base
'''
from __future__ import print_function
import logging
import sys
import requests
# pylint: disable=import-error,no-name-in-module
if sys.version_info >= (3, 0):
from urllib.parse import urljoin
else:
from urlparse import urljoin
# pylint: enable=import-error,no-name-in-module
from icinga2api.exceptions import Icinga2ApiException
LOG = logging.getLogger(__name__)
class Base(object):
'''
Icinga 2 API Base class
'''
base_url_path = None # 继承
def __init__(self, manager):
'''
initialize object
'''
self.manager = manager
self.stream_cache = ""
def _create_session(self, method='POST'):
'''
create a session object
'''
session = requests.Session()
# prefer certificate authentification
if self.manager.certificate and self.manager.key:
# certificate and key are in different files
session.cert = (self.manager.certificate, self.manager.key)
elif self.manager.certificate:
# certificate and key are in the same file
session.cert = self.manager.certificate
elif self.manager.username and self.manager.password:
# use username and password
session.auth = (self.manager.username, self.manager.password)
session.headers = {
'User-Agent': 'Python-icinga2api/{0}'.format(self.manager.version),
'X-HTTP-Method-Override': method.upper(),
'Accept': 'application/json'
}
return session
def _request(self, method, url_path, payload=None, stream=False):
'''
make the request and return the body
:param method: the HTTP method
:type method: string
:param url_path: the requested url path
:type url_path: string
:param payload: the payload to send
:type payload: dictionary
:returns: the response as json
:rtype: dictionary
'''
request_url = urljoin(self.manager.url, url_path)
LOG.debug("Request URL: %s", request_url)
# create session
session = self._create_session(method)
# create arguments for the request
request_args = {
'url': request_url,
'timeout': self.manager.timeout,
}
if payload:
request_args['json'] = payload
if self.manager.ca_certificate:
request_args['verify'] = self.manager.ca_certificate
else:
request_args['verify'] = False
if stream:
request_args['stream'] = True
# do the request
response = session.post(**request_args)
if not stream:
session.close()
# # for debugging
# from pprint import pprint
# pprint(request_url)
# pprint(payload)
# pprint(response)
if not 200 <= response.status_code <= 299:
try:
upstream_error=response.json()
except ValueError:
upstream_error=None
raise Icinga2ApiException(
'Request "{}" failed with status {}: {}'.format(
response.url,
response.status_code,
response.text,
),
upstream_error=upstream_error,
)
if stream:
return response
else:
return response.json()
@staticmethod
def _get_message_from_stream(stream):
'''
make the request and return the body
:param stream: the stream
:type method: request
:returns: the message
:rtype: dictionary
'''
# TODO: test iter_lines()
message = ''
for char in stream.iter_content():
char = char.decode()
if char == '\n':
yield message
message = ''
else:
message += char