# -*- coding: utf-8 -*- # # The MIT License (MIT) # # Copyright (C) 2017 Marcos Pereira # # Permission is hereby granted, free of charge, to any person obtaining a copy of # this software and associated documentation files (the "Software"), to deal in # the Software without restriction, including without limitation the rights to # use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of # the Software, and to permit persons to whom the Software is furnished to do so, # subject to the following conditions: # # The above copyright notice and this permission notice shall be included in all # copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS # FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR # COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. try: from urllib.parse import urljoin except ImportError: from urlparse import urljoin import requests from requests.adapters import HTTPAdapter from .exceptions import (KeycloakConnectionError) 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. verify (bool): Verify server SSL. proxies (dict): The proxies servers requests is sent by. """ def __init__(self, base_url, headers={}, timeout=60, verify=True, proxies=None): self._base_url = base_url self._headers = headers self._timeout = timeout self._verify = verify self._s = requests.Session() self._s.auth = lambda x: x # don't let requests add auth headers # retry once to reset connection with Keycloak after tomcat's ConnectionTimeout # see https://github.com/marcospereirampj/python-keycloak/issues/36 for protocol in ('https://', 'http://'): adapter = HTTPAdapter(max_retries=1) # adds POST to retry whitelist allowed_methods = set(adapter.max_retries.allowed_methods) allowed_methods.add('POST') adapter.max_retries.allowed_methods = frozenset(allowed_methods) self._s.mount(protocol, adapter) if proxies: self._s.proxies = proxies def __del__(self): self._s.close() @property def base_url(self): """ Return base url in use for requests to the server. """ return self._base_url @base_url.setter def base_url(self, value): """ """ self._base_url = value @property def timeout(self): """ Return timeout in use for request to the server. """ return self._timeout @timeout.setter def timeout(self, value): """ """ self._timeout = value @property def verify(self): """ Return verify in use for request to the server. """ return self._verify @verify.setter def verify(self, value): """ """ self._verify = value @property def headers(self): """ Return header request to the server. """ return self._headers @headers.setter def headers(self, value): """ """ self._headers = value def 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.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 self._s.get(urljoin(self.base_url, path), params=kwargs, headers=self.headers, timeout=self.timeout, verify=self.verify) 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 self._s.post(urljoin(self.base_url, path), params=kwargs, data=data, headers=self.headers, timeout=self.timeout, verify=self.verify) 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 self._s.put(urljoin(self.base_url, path), params=kwargs, data=data, headers=self.headers, timeout=self.timeout, verify=self.verify) except Exception as e: raise KeycloakConnectionError( "Can't connect to server (%s)" % e) def raw_delete(self, path, data={}, **kwargs): """ Submit delete 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 self._s.delete(urljoin(self.base_url, path), params=kwargs, data=data, headers=self.headers, timeout=self.timeout, verify=self.verify) except Exception as e: raise KeycloakConnectionError( "Can't connect to server (%s)" % e)