+import logging
+logger = logging.getLogger('cas_provider.views')
+import urllib
+
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import render_to_response
from django.template import RequestContext
from django.contrib.auth import authenticate
from django.contrib.auth import login as auth_login, logout as auth_logout
+from django.core.urlresolvers import reverse
-from forms import LoginForm
-from models import ServiceTicket, LoginTicket
+from forms import LoginForm, MergeLoginForm
+from models import ServiceTicket
from utils import create_service_ticket
+from exceptions import SameEmailMismatchedPasswords
+
+from . import signals
__all__ = ['login', 'validate', 'logout']
-def login(request, template_name='cas/login.html', success_redirect='/accounts/'):
+
+def _build_service_url(service, ticket):
+ if service.find('?') == -1:
+ return service + '?ticket=' + ticket
+ else:
+ return service + '&ticket=' + ticket
+
+
+def login(request, template_name='cas/login.html', success_redirect='/account/', **kwargs):
+ merge = kwargs.get('merge', False)
+ logging.debug('CAS Provider Login view. Method is %s, merge is %s, template is %s.',
+ request.method, merge, template_name)
+
service = request.GET.get('service', None)
- if request.user.is_authenticated():
- if service is not None:
- ticket = create_service_ticket(request.user, service)
- if service.find('?') == -1:
- return HttpResponseRedirect(service + '?ticket=' + ticket.ticket)
- else:
- return HttpResponseRedirect(service + '&ticket=' + ticket.ticket)
- else:
- return HttpResponseRedirect(success_redirect)
+ if service is not None:
+ # Save the service on the session, for later use if we end up
+ # in one of the more complicated workflows.
+ request.session['service'] = service
+
+ user = request.user
+
errors = []
+
if request.method == 'POST':
- email = request.POST.get('email', None)
- password = request.POST.get('password', None)
- service = request.POST.get('service', None)
- lt = request.POST.get('lt', None)
-
- try:
- login_ticket = LoginTicket.objects.get(ticket=lt)
- except:
- errors.append('Login ticket expired. Please try again.')
+ if merge:
+ form = MergeLoginForm(request.POST, request=request)
else:
- login_ticket.delete()
- user = authenticate(username=email, password=password)
- if user is not None:
+ form = LoginForm(request.POST, request=request)
+
+ if form.is_valid():
+ service = form.cleaned_data.get('service', None)
+ try:
+ auth_args = dict(username=form.cleaned_data['email'],
+ password=form.cleaned_data['password'])
+ if merge:
+ # We only want to send the merge argument if it's
+ # True. If it it's False, we want it to propagate
+ # through the auth backends properly.
+ auth_args['merge'] = merge
+ user = authenticate(**auth_args)
+ except SameEmailMismatchedPasswords:
+ # Need to merge the accounts?
+ if merge:
+ # We shouldn't get here...
+ raise
+ else:
+ base_url = reverse('cas_provider_merge')
+ args = dict(
+ success_redirect=success_redirect,
+ email=form.cleaned_data['email'],
+ )
+ if service is not None:
+ args['service'] = service
+ args = urllib.urlencode(args)
+
+ url = '%s?%s' % (base_url, args)
+ logging.debug('Redirecting to %s', url)
+ return HttpResponseRedirect(url)
+
+ if user is None:
+ errors.append('Incorrect username and/or password.')
+ else:
if user.is_active:
auth_login(request, user)
- if service is not None:
- ticket = create_service_ticket(user, service)
- return HttpResponseRedirect(service + '?ticket=' + ticket.ticket)
- else:
- return HttpResponseRedirect(success_redirect)
- else:
- errors.append('This account is disabled.')
+
+ else: # Not a POST...
+ if merge:
+ form = MergeLoginForm(initial={'service': service, 'email': request.GET.get('email')})
+ else:
+ form = LoginForm(initial={'service': service})
+
+ if user is not None and user.is_authenticated():
+ # We have an authenticated user.
+ if not user.is_active:
+ errors.append('This account is disabled.')
+ else:
+ # Send the on_cas_login signal. If we get an HttpResponse, return that.
+ for receiver, response in signals.on_cas_login.send(sender=login, request=request, **kwargs):
+ if isinstance(response, HttpResponse):
+ return response
+
+ if service is None:
+ # Try and pull the service off the session
+ service = request.session.pop('service', service)
+
+ if service is None:
+ # Normal internal success redirection.
+ logging.debug('Redirecting to %s', success_redirect)
+ return HttpResponseRedirect(success_redirect)
else:
- errors.append('Incorrect username and/or password.')
- form = LoginForm(service)
+ # Create a service ticket and redirect to the service.
+ ticket = create_service_ticket(request.user, service)
+ if 'service' in request.session:
+ # Don't need this any more.
+ del request.session['service']
+
+ url = _build_service_url(service, ticket.ticket)
+ logging.debug('Redirecting to %s', url)
+ return HttpResponseRedirect(url)
+
+ logging.debug('Rendering response on %s, merge is %s', template_name, merge)
return render_to_response(template_name, {'form': form, 'errors': errors}, context_instance=RequestContext(request))
-
+
+
def validate(request):
service = request.GET.get('service', None)
ticket_string = request.GET.get('ticket', None)
+ logger.info('Validating ticket %s for %s', ticket_string, service)
if service is not None and ticket_string is not None:
try:
ticket = ServiceTicket.objects.get(ticket=ticket_string)
- ### NOTE: We've changed this to return the email address, not the username.
- email = ticket.user.email
+ except ServiceTicket.DoesNotExist:
+ logger.exception("Tried to validate with an invalid ticket %s for %s", ticket_string, service)
+ except Exception as e:
+ logger.exception('Got an exception: %s', e)
+ else:
+ username = ticket.user.username
ticket.delete()
- return HttpResponse("yes\n%s\n" % email)
- except:
- pass
+
+ results = signals.on_cas_collect_histories.send(sender=validate, for_email=ticket.user.email)
+ histories = '\n'.join('\n'.join(rs) for rc, rs in results)
+ logger.info('Validated %s %s', username, "(also %s)" % histories if histories else '')
+ return HttpResponse("yes\n%s\n%s" % (username, histories))
+
+ logger.info('Validation failed.')
return HttpResponse("no\n\n")
+
def logout(request, template_name='cas/logout.html'):
url = request.GET.get('url', None)
auth_logout(request)
fnp / django-cas-provider.git / blobdiff