Add message show for switch project

When we switch the project admin to demo there
is no message show althrough success, we can add
message show.

Closes-bug:#1436709
Change-Id: Ie06c2c955939f73d89583e40f03cca6428695a6e

openstack_auth/tests/settings.py

@@ -20,6 +20,7 @@ INSTALLED_APPS = [
     'django.contrib.contenttypes',
     'django.contrib.auth',
     'django.contrib.sessions',
+    'django.contrib.messages',
     'openstack_auth',
     'openstack_auth.tests'
 ]
@@ -28,7 +29,8 @@ MIDDLEWARE_CLASSES = [
     'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware'
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware'
 ]
 
 AUTHENTICATION_BACKENDS = ['openstack_auth.backend.KeystoneBackend']

openstack_auth/views.py

@@ -18,10 +18,12 @@ from django.conf import settings
 from django.contrib import auth
 from django.contrib.auth.decorators import login_required  # noqa
 from django.contrib.auth import views as django_auth_views
+from django.contrib import messages
 from django import http as django_http
 from django import shortcuts
 from django.utils import functional
 from django.utils import http
+from django.utils.translation import ugettext_lazy as _
 from django.views.decorators.cache import never_cache  # noqa
 from django.views.decorators.csrf import csrf_exempt  # noqa
 from django.views.decorators.csrf import csrf_protect  # noqa
@@ -217,9 +219,10 @@ def switch(request, tenant_id, redirect_field_name=auth.REDIRECT_FIELD_NAME):
             {'username': request.user.username}
         LOG.info(msg)
     except keystone_exceptions.ClientException:
-        msg = 'Project switch failed for user "%(username)s".' % \
-            {'username': request.user.username}
-        LOG.warning(msg)
+        msg = (
+            _('Project switch failed for user "%(username)s".') %
+            {'username': request.user.username})
+        messages.error(request, msg)
         auth_ref = None
         LOG.exception('An error occurred while switching sessions.')
 
@@ -239,6 +242,10 @@ def switch(request, tenant_id, redirect_field_name=auth.REDIRECT_FIELD_NAME):
             auth_user.Token(auth_ref, unscoped_token=unscoped_token),
             endpoint)
         auth_user.set_session_from_user(request, user)
+        message = (
+            _('Switch to project "%(project_name)s" successful.') %
+            {'project_name': request.user.project_name})
+        messages.success(request, message)
     response = shortcuts.redirect(redirect_to)
     utils.set_response_cookie(response, 'recent_project',
                               request.user.project_id)