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import urllib
import urllib2
import httplib
import time
from forum.authentication.base import AuthenticationConsumer, InvalidAuthentication
from django.utils.translation import ugettext as _
from lib import oauth
class OAuthAbstractAuthConsumer(AuthenticationConsumer):
def __init__(self, consumer_key, consumer_secret, server_url, request_token_url, access_token_url, authorization_url):
self.consumer_secret = consumer_secret
self.consumer_key = consumer_key
self.consumer = oauth.OAuthConsumer(consumer_key, consumer_secret)
self.signature_method = oauth.OAuthSignatureMethod_HMAC_SHA1()
self.server_url = server_url
self.request_token_url = request_token_url
self.access_token_url = access_token_url
self.authorization_url = authorization_url
def prepare_authentication_request(self, request, redirect_to):
request_token = self.fetch_request_token()
request.session['unauthed_token'] = request_token.to_string()
return self.authorize_token_url(request_token)
def process_authentication_request(self, request):
unauthed_token = request.session.get('unauthed_token', None)
if not unauthed_token:
raise InvalidAuthentication(_('Error, the oauth token is not on the server'))
token = oauth.OAuthToken.from_string(unauthed_token)
if token.key != request.GET.get('oauth_token', 'no-token'):
raise InvalidAuthentication(_("Something went wrong! Auth tokens do not match"))
access_token = self.fetch_access_token(token)
return access_token.to_string()
def get_user_data(self, key):
#token = oauth.OAuthToken.from_string(access_token)
return {}
def fetch_request_token(self):
oauth_request = oauth.OAuthRequest.from_consumer_and_token(self.consumer, http_url=self.request_token_url)
oauth_request.sign_request(self.signature_method, self.consumer, None)
params = oauth_request.parameters
data = urllib.urlencode(params)
full_url='%s?%s'%(self.request_token_url, data)
response = urllib2.urlopen(full_url)
return oauth.OAuthToken.from_string(response.read())
def authorize_token_url(self, token, callback_url=None):
oauth_request = oauth.OAuthRequest.from_token_and_callback(token=token,\
callback=callback_url, http_url=self.authorization_url)
params = oauth_request.parameters
data = urllib.urlencode(params)
full_url='%s?%s'%(self.authorization_url, data)
return full_url
def fetch_access_token(self, token):
oauth_request = oauth.OAuthRequest.from_consumer_and_token(self.consumer, token=token, http_url=self.access_token_url)
oauth_request.sign_request(self.signature_method, self.consumer, token)
params = oauth_request.parameters
data = urllib.urlencode(params)
full_url='%s?%s'%(self.access_token_url, data)
response = urllib2.urlopen(full_url)
return oauth.OAuthToken.from_string(response.read())
def fetch_data(self, token, http_url, parameters=None):
access_token = oauth.OAuthToken.from_string(token)
oauth_request = oauth.OAuthRequest.from_consumer_and_token(
self.consumer, token=access_token, http_method="GET",
http_url=http_url, parameters=parameters,
)
oauth_request.sign_request(self.signature_method, self.consumer, access_token)
url = oauth_request.to_url()
connection = httplib.HTTPSConnection(self.server_url)
connection.request(oauth_request.http_method, url)
return connection.getresponse().read()
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