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# -*- coding: utf-8 -*-
#
# Copyright (C) 2017 Marcos Pereira <marcospereira.mpj@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
try:
from urllib.parse import urljoin
except ImportError:
from urlparse import urljoin
from .exceptions import *
import requests
class ConnectionManager(object):
""" Represents a simple server connection.
Args:
base_url (str): The server URL.
headers (dict): The header parameters of the requests to the server.
timeout (int): Timeout to use for requests to the server.
"""
def __init__(self, base_url, headers={}, timeout=60):
self.__base_url = base_url
self.__headers = headers
self.__timeout = timeout
def get_url(self):
""" Return base url in use for requests to the server. """
return self.__base_url
def get_timeout(self):
""" Return timeout in use for request to the server. """
return self.__timeout
def set_headers(self, params):
""" Update header request to the server.
:arg
params (dict): Parameters header request.
"""
self.__headers = params
def get_headers(self):
""" Return header request to the server. """
return self.__headers
def get_param_headers(self, key):
""" Return a specific header parameter.
:arg
key (str): Header parameters key.
:return:
If the header parameters exist, return its value.
"""
return self.__headers.get(key)
def clean_headers(self):
""" Clear header parameters. """
self.__headers = {}
def exist_param_headers(self, key):
""" Check if the parameter exists in the header.
:arg
key (str): Header parameters key.
:return:
If the header parameters exist, return True.
"""
return self.get_param_headers(key) is not None
def add_param_headers(self, key, value):
""" Add a single parameter inside the header.
:arg
key (str): Header parameters key.
value (str): Value to be added.
"""
self.__headers[key] = value
def del_param_headers(self, key):
""" Remove a specific parameter.
:arg
key (str): Key of the header parameters.
"""
self.__headers.pop(key, None)
def raw_get(self, path, **kwargs):
""" Submit get request to the path.
:arg
path (str): Path for request.
:return
Response the request.
:exception
HttpError: Can't connect to server.
"""
try:
return requests.get(urljoin(self.get_url(), path),
params=kwargs,
headers=self.get_headers(),
timeout=self.get_timeout())
except Exception as e:
raise KeycloakConnectionError(
"Can't connect to server (%s)" % e)
def raw_post(self, path, data, **kwargs):
""" Submit post request to the path.
:arg
path (str): Path for request.
data (dict): Payload for request.
:return
Response the request.
:exception
HttpError: Can't connect to server.
"""
try:
return requests.post(urljoin(self.get_url(), path),
params=kwargs,
data=data,
headers=self.get_headers(),
timeout=self.get_timeout())
except Exception as e:
raise KeycloakConnectionError(
"Can't connect to server (%s)" % e)
def raw_put(self, path, data, **kwargs):
""" Submit put request to the path.
:arg
path (str): Path for request.
data (dict): Payload for request.
:return
Response the request.
:exception
HttpError: Can't connect to server.
"""
try:
return requests.put(urljoin(self.get_url(), path),
params=kwargs,
data=data,
headers=self.get_headers(),
timeout=self.get_timeout())
except Exception as e:
raise KeycloakConnectionError(
"Can't connect to server (%s)" % e)