misc: switch to class-based login/logout views (#41633)

bijoe/templates/bijoe/login.html

@@ -1,9 +1,10 @@
 {% extends "bijoe/base.html" %}
+{% load i18n %}
 
 {% block content %}
 <form method="post">
-	{% csrf_token %}
-	{{ form }}
-	<input type="submit" name="Login"/>
+{% csrf_token %}
+{{ form.as_p }}
+<input type="submit" value="{% trans 'Log in' %}" />
 </form>
 {% endblock %}

bijoe/views.py

@@ -21,12 +21,14 @@ from django.shortcuts import resolve_url
 from django.urls import reverse
 from django.views.generic import ListView, View
 from django.http import HttpResponse, HttpResponseRedirect
+from django.utils.decorators import method_decorator
 from django.utils.http import quote
 from django.utils.translation import ugettext as _
 from django.contrib.auth import logout as auth_logout
 from django.contrib.auth import views as auth_views
 from django.contrib.auth.views import redirect_to_login
 from django.core.exceptions import PermissionDenied
+from django.views.decorators.cache import never_cache
 
 try:
     from mellon.utils import get_idps
@@ -96,21 +98,28 @@ homepage = HomepageView.as_view()
 menu_json = MenuJSONView.as_view()
 
 
-def login(request, *args, **kwargs):
-    if any(get_idps()):
-        if not 'next' in request.GET:
-            return HttpResponseRedirect(resolve_url('mellon_login'))
-        return HttpResponseRedirect(resolve_url('mellon_login') + '?next='
-                                    + quote(request.GET.get('next')))
-    return auth_views.login(request, template_name='bijoe/login.html')
+class LoginView(auth_views.LoginView):
+    template_name = 'bijoe/login.html'
+
+    def get(self, request, *args, **kwargs):
+        if any(get_idps()):
+            if 'next' not in request.GET:
+                return HttpResponseRedirect(resolve_url('mellon_login'))
+            return HttpResponseRedirect(
+                resolve_url('mellon_login') + '?next=' + quote(request.GET.get('next'))
+            )
+        return super(LoginView, self).get(request, *args, **kwargs)
 
 
-def logout(request, next_page=None):
-    if any(get_idps()):
-        return HttpResponseRedirect(resolve_url('mellon_logout'))
-    auth_logout(request)
-    if next_page is not None:
-        next_page = resolve_url(next_page)
-    else:
-        next_page = '/'
-    return HttpResponseRedirect(next_page)
+login = LoginView.as_view()
+
+
+class LogoutView(auth_views.LogoutView):
+    @method_decorator(never_cache)
+    def dispatch(self, request, *args, **kwargs):
+        if any(get_idps()):
+            return HttpResponseRedirect(resolve_url('mellon_logout'))
+        return super(LogoutView, self).dispatch(request, *args, **kwargs)
+
+
+logout = LogoutView.as_view()

tests/test_views.py

@@ -61,8 +61,7 @@ def test_superuser(app, admin):
     assert 'foo([{' in resp.text
     app.get('/', status=200)
     app.get('/visualization/', status=200)
-    resp = app.get('/accounts/logout/', status=302)
-    assert resp.location == '/'
+    resp = app.get('/accounts/logout/', status=(200, 302))
 
 
 def test_visualizations_json_api(schema1, app, admin, settings):