X-Git-Url: https://git.mdrn.pl/django-cas-provider.git/blobdiff_plain/3cbcd5e5abc9765cd329b09de514f2b5c47b7723..73bfc6b53448f5f1d10d9b3f58f2cf4f3756be41:/cas_provider/views.py diff --git a/cas_provider/views.py b/cas_provider/views.py index 3686d74..32ed6e9 100644 --- a/cas_provider/views.py +++ b/cas_provider/views.py @@ -1,57 +1,63 @@ from django.conf import settings -from django.contrib.auth import authenticate, login as auth_login, \ +from django.contrib.auth import login as auth_login, \ logout as auth_logout from django.http import HttpResponse, HttpResponseRedirect from django.shortcuts import render_to_response from django.template import RequestContext -from django.utils.translation import ugettext_lazy as _ from forms import LoginForm from models import ServiceTicket, LoginTicket -from utils import create_service_ticket __all__ = ['login', 'validate', 'logout', 'service_validate'] -def login(request, template_name='cas/login.html', success_redirect=getattr(settings, 'LOGIN_REDIRECT_URL', '/accounts/')): +INVALID_TICKET = 'INVALID_TICKET' +INVALID_SERVICE = 'INVALID_SERVICE' +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'), +) + + +def login(request, template_name='cas/login.html', \ + success_redirect=settings.LOGIN_REDIRECT_URL, + warn_template_name='cas/warn.html'): 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) + if request.GET.get('warn', False): + return render_to_response(warn_template_name, { + 'service': service, + 'warn': False + }, context_instance=RequestContext(request)) + ticket = ServiceTicket.objects.create(service=service, user=request.user) + return HttpResponseRedirect(ticket.get_redirect_url()) else: return HttpResponseRedirect(success_redirect) - errors = [] if request.method == 'POST': - username = request.POST.get('username', 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.')) - else: - login_ticket.delete() - user = authenticate(username=username, password=password) - if user is not None: - 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: - errors.append(_('Incorrect username and/or password.')) - form = LoginForm(service) - return render_to_response(template_name, {'form': form, 'errors': errors}, context_instance=RequestContext(request)) + form = LoginForm(request.POST) + if form.is_valid(): + user = form.get_user() + auth_login(request, user) + service = form.cleaned_data.get('service') + if service is not None: + ticket = ServiceTicket.objects.create(service=service, user=user) + success_redirect = ticket.get_redirect_url() + return HttpResponseRedirect(success_redirect) + else: + form = LoginForm(initial={ + 'service': service, + 'lt': LoginTicket.objects.create() + }) + return render_to_response(template_name, { + 'form': form, + 'errors': form.get_errors() + }, context_instance=RequestContext(request)) def validate(request): @@ -59,20 +65,24 @@ def validate(request): service = request.GET.get('service', None) ticket_string = request.GET.get('ticket', None) if service is not None and ticket_string is not None: + #renew = request.GET.get('renew', True) + #if not renew: + # TODO: check user SSO session try: ticket = ServiceTicket.objects.get(ticket=ticket_string) username = ticket.user.username ticket.delete() - return HttpResponse("yes\r\n%s\r\n" % username) + return HttpResponse("yes\n%s\n" % username) except: pass - return HttpResponse("no\r\n\r\n") + return HttpResponse("no\n\n") def logout(request, template_name='cas/logout.html'): url = request.GET.get('url', None) auth_logout(request) - return render_to_response(template_name, {'url': url}, context_instance=RequestContext(request)) + return render_to_response(template_name, {'url': url}, \ + context_instance=RequestContext(request)) def service_validate(request): @@ -80,29 +90,36 @@ def service_validate(request): service = request.GET.get('service', None) ticket_string = request.GET.get('ticket', None) if service is None or ticket_string is None: - return _cas2_error_response(u'INVALID_REQUEST', u'Not all required parameters were sent.') + return _cas2_error_response(INVALID_REQUEST) try: ticket = ServiceTicket.objects.get(ticket=ticket_string) except ServiceTicket.DoesNotExist: - return _cas2_error_response(u'INVALID_TICKET', u'The provided ticket is invalid.') + return _cas2_error_response(INVALID_TICKET) if settings.CAS_CHECK_SERVICE and ticket.service != service: ticket.delete() - return _cas2_error_response('INVALID_SERVICE', u'Service is invalid') + return _cas2_error_response(INVALID_SERVICE) username = ticket.user.username ticket.delete() + return _cas2_sucess_response(username) + + +def _cas2_error_response(code): + return HttpResponse(u'''' + + %(message)s + + ''' % { + 'code': code, + 'message': dict(ERROR_MESSAGES).get(code) + }, mimetype='text/xml') + + +def _cas2_sucess_response(username): return HttpResponse(u''' %(username)s ''' % {'username': username}, mimetype='text/xml') - - -def _cas2_error_response(code, message): - return HttpResponse(u'''' - - %s - - ''', mimetype='text/xml')