X-Git-Url: https://git.mdrn.pl/django-cas-provider.git/blobdiff_plain/bb0f7662eb12a838cbd339dd8b60476a73ec161b..38e127a205b49ab137d554895d426cb8e7dcd785:/cas_provider/views.py diff --git a/cas_provider/views.py b/cas_provider/views.py index 6cc322a..76bcbb2 100644 --- a/cas_provider/views.py +++ b/cas_provider/views.py @@ -1,10 +1,16 @@ +from __future__ import unicode_literals + import logging logger = logging.getLogger('cas_provider.views') -import urllib -from urllib import urlencode -import urllib2 -import urlparse +try: + from urllib.error import HTTPError, URLError + from urllib.parse import parse_qsl, urlencode, urlparse, urlsplit, urlunsplit + from urllib.request import urlopen +except ImportError: + from urllib import urlencode + from urllib2 import HTTPError, URLError, urlopen + from urlparse import parse_qsl, urlparse, urlsplit, urlunsplit from functools import wraps from django.utils.decorators import available_attrs @@ -22,6 +28,7 @@ from django.utils.translation import ugettext as _ from django.template import RequestContext from django.contrib.auth import authenticate from django.core.urlresolvers import reverse +from django.utils.translation import ugettext as _ from lxml import etree from cas_provider.attribute_formatters import NSMAP, CAS @@ -40,10 +47,10 @@ INVALID_REQUEST = 'INVALID_REQUEST' INTERNAL_ERROR = 'INTERNAL_ERROR' ERROR_MESSAGES = ( - (INVALID_TICKET, u'The provided ticket is invalid.'), - (INVALID_SERVICE, u'Service is invalid'), - (INVALID_REQUEST, u'Not all required parameters were sent.'), - (INTERNAL_ERROR, u'An internal error occurred during ticket validation'), + (INVALID_TICKET, 'The provided ticket is invalid.'), + (INVALID_SERVICE, 'Service is invalid'), + (INVALID_REQUEST, 'Not all required parameters were sent.'), + (INTERNAL_ERROR, 'An internal error occurred during ticket validation'), ) @@ -118,7 +125,7 @@ def login(request, template_name='cas/login.html', ) if service is not None: args['service'] = service - args = urllib.urlencode(args) + args = urlencode(args) url = '%s?%s' % (base_url, args) logging.debug('Redirecting to %s', url) @@ -234,7 +241,7 @@ def proxy(request): return _cas2_error_response(INVALID_TICKET) pt = ProxyTicket.objects.create(proxyGrantingTicket=proxyGrantingTicket, - user=proxyGrantingTicket.serviceTicket.user, + user=proxyGrantingTicket.user, service=targetService) return _cas2_proxy_success(pt.ticket) @@ -255,8 +262,8 @@ def ticket_validate(service, ticket_string, pgtUrl): except ServiceTicket.DoesNotExist: return _cas2_error_response(INVALID_TICKET) - ticketUrl = urlparse.urlparse(ticket.service) - serviceUrl = urlparse.urlparse(service) + ticketUrl = urlparse(ticket.service) + serviceUrl = urlparse(service) if not(ticketUrl.hostname == serviceUrl.hostname and ticketUrl.path == serviceUrl.path and ticketUrl.port == serviceUrl.port): return _cas2_error_response(INVALID_SERVICE) @@ -268,16 +275,16 @@ def ticket_validate(service, ticket_string, pgtUrl): if pgt: pgtIouId = pgt.pgtiou - if hasattr(ticket, 'proxyticket'): - pgt = ticket.proxyticket.proxyGrantingTicket + try: + proxyTicket = ticket.proxyticket + except ProxyTicket.DoesNotExist: + pass + else: + pgt = proxyTicket.proxyGrantingTicket # I am issued by this proxy granting ticket - if hasattr(pgt.serviceTicket, 'proxyticket'): - while pgt: - if hasattr(pgt.serviceTicket, 'proxyticket'): - proxies += (pgt.serviceTicket.service,) - pgt = pgt.serviceTicket.proxyticket.proxyGrantingTicket - else: - pgt = None + while pgt.pgt is not None: + proxies += (pgt.service,) + pgt = pgt.pgt user = ticket.user ticket.delete() @@ -307,31 +314,29 @@ def proxy_validate(request): def generate_proxy_granting_ticket(pgt_url, ticket): proxy_callback_good_status = (200, 202, 301, 302, 304) - uri = list(urlparse.urlsplit(pgt_url)) + uri = list(urlsplit(pgt_url)) pgt = ProxyGrantingTicket() - pgt.serviceTicket = ticket - pgt.targetService = pgt_url - - if hasattr(ticket, 'proxyGrantingTicket'): - # here we got a proxy ticket! tata! - pgt.pgt = ticket.proxyGrantingTicket + pgt.user = ticket.user + pgt.service = ticket.service + # Remember if it's a chained PGT. + pgt.pgt = getattr(ticket, 'proxyGrantingTicket', None) params = {'pgtId': pgt.ticket, 'pgtIou': pgt.pgtiou} - query = dict(urlparse.parse_qsl(uri[4])) + query = dict(parse_qsl(uri[4])) query.update(params) uri[3] = urlencode(query) try: - urllib2.urlopen(urlparse.urlunsplit(uri)) - except urllib2.HTTPError as e: + urlopen(urlunsplit(uri)) + except HTTPError as e: if not e.code in proxy_callback_good_status: - logger.debug('Checking Proxy Callback URL {} returned {}. Not issuing PGT.'.format(uri, e.code)) + logger.debug('Checking Proxy Callback URL {0} returned {1}. Not issuing PGT.'.format(uri, e.code)) return - except urllib2.URLError as e: - logger.debug('Checking Proxy Callback URL {} raised URLError. Not issuing PGT.'.format(uri)) + except URLError as e: + logger.debug('Checking Proxy Callback URL {0} raised URLError. Not issuing PGT.'.format(uri)) return pgt.save() @@ -343,18 +348,18 @@ def _cas2_proxy_success(pt): def _cas2_sucess_response(user, pgt=None, proxies=None): - return HttpResponse(auth_success_response(user, pgt, proxies), mimetype='text/xml') + return HttpResponse(auth_success_response(user, pgt, proxies), content_type='text/xml') def _cas2_error_response(code, message=None): - return HttpResponse(u''' + return HttpResponse(''' %(message)s ''' % { 'code': code, 'message': message if message else dict(ERROR_MESSAGES).get(code) - }, mimetype='text/xml') + }, content_type='text/xml') def proxy_success(pt): @@ -362,7 +367,7 @@ def proxy_success(pt): proxySuccess = etree.SubElement(response, CAS + 'proxySuccess') proxyTicket = etree.SubElement(proxySuccess, CAS + 'proxyTicket') proxyTicket.text = pt - return unicode(etree.tostring(response, encoding='utf-8'), 'utf-8') + return etree.tostring(response, encoding='unicode') def auth_success_response(user, pgt, proxies): @@ -397,4 +402,4 @@ def auth_success_response(user, pgt, proxies): proxyElement = etree.SubElement(proxiesElement, CAS + "proxy") proxyElement.text = proxy - return unicode(etree.tostring(response, encoding='utf-8'), 'utf-8') + return etree.tostring(response, encoding='unicode')