Added support for handling user-merging workflows at authentication time.

[django-cas-provider.git] / cas_provider / views.py

diff --git a/cas_provider/views.py b/cas_provider/views.py
index d76e60b..ba7b0a2 100644 (file)
--- a/cas_provider/views.py
+++ b/cas_provider/views.py
@@ -1,18 +1,24 @@
+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
 
 __all__ = ['login', 'validate', 'logout']
 
-def login(request, template_name='cas/login.html', success_redirect='/account/'):
+
+def login(request, template_name='cas/login.html', success_redirect='/account/', merge=False):
     service = request.GET.get('service', None)
-    request.session['service'] = service
+    if service is not None:
+        request.session['service'] = service
     if request.user.is_authenticated():
         if service is not None:
             ticket = create_service_ticket(request.user, service)
@@ -24,20 +30,37 @@ def login(request, template_name='cas/login.html', success_redirect='/account/')
             return HttpResponseRedirect(success_redirect)
     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)
-        if not request.POST.get('remember_me', None):
-          request.session.set_expiry(0)
-                
-        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)
+            form = LoginForm(request.POST, request=request)
+
+        if form.is_valid():
+            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)
+
+                    return HttpResponseRedirect('%s?%s' % (base_url, args))
             if user is not None:
                 if user.is_active:
                     auth_login(request, user)
@@ -50,14 +73,24 @@ def login(request, template_name='cas/login.html', success_redirect='/account/')
                     errors.append('This account is disabled.')
             else:
                     errors.append('Incorrect username and/or password.')
-    form = LoginForm(service)
+    else:
+        if merge:
+            form = MergeLoginForm(request.GET, request=request)
+        else:
+            form = LoginForm(request.GET, request=request)
     return render_to_response(template_name, {'form': form, 'errors': errors}, context_instance=RequestContext(request))
 
-def socialauth_login(request, user, template_name='cas/login.html', success_redirect='/account/'):
+def socialauth_login(request, template_name='cas/login.html', success_redirect='/account/'):
     """ Similiar to login but user has been authenticated already through social auth.
         This step authenticates the login and generates a service ticket.
     """
-    service = request.session['service']
+    user = request.user
+    user.backend = 'django.contrib.auth.backends.ModelBackend'
+    if request.session.has_key('service'):
+        service = request.session['service']
+        del request.session['service']
+    else:
+        service = '/'
     errors = []
     if user is not None:
         if user.is_active:
@@ -72,7 +105,8 @@ def socialauth_login(request, user, template_name='cas/login.html', success_redi
     else:
             errors.append('Incorrect username and/or password.')
     return render_to_response(template_name, {'errors': errors}, context_instance=RequestContext(request))
-    
+
+
 def validate(request):
     service = request.GET.get('service', None)
     ticket_string = request.GET.get('ticket', None)
@@ -86,6 +120,7 @@ def validate(request):
             pass
     return HttpResponse("no\n\n")
     
+
 def logout(request, template_name='cas/logout.html'):
     url = request.GET.get('url', None)
     auth_logout(request)