X-Git-Url: https://git.mdrn.pl/django-cas-provider.git/blobdiff_plain/2a63016905079a3098b72ac7ae25b47e423b4535..8ace0586471d741bbe1d55dca48f524a3d385852:/cas_provider/views.py?ds=sidebyside diff --git a/cas_provider/views.py b/cas_provider/views.py index 47f1758..5ba62e6 100644 --- a/cas_provider/views.py +++ b/cas_provider/views.py @@ -1,69 +1,151 @@ +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)