Merge pull request #190 from spstpl/error_message_patch

Patch for login error message.

social_auth/views.py

@@ -16,6 +16,7 @@
 from django.core.urlresolvers import reverse
 from django.contrib.auth import login, REDIRECT_FIELD_NAME
 from django.contrib.auth.decorators import login_required
+from django.contrib import messages
 from django.views.decorators.csrf import csrf_exempt
 
 from social_auth.backends import get_backend
@@ -37,6 +38,7 @@
 BACKEND_ERROR_REDIRECT = setting('SOCIAL_AUTH_BACKEND_ERROR_URL',
                                  LOGIN_ERROR_URL)
 SANITIZE_REDIRECTS = setting('SOCIAL_AUTH_SANITIZE_REDIRECTS', True)
+ERROR_MESSAGE = setting('LOGIN_ERROR_MESSAGE', None)
 
 
 def dsa_view(redirect_name=None):
@@ -170,6 +172,8 @@ def complete_process(request, backend, *args, **kwargs):
               request.session.pop(REDIRECT_FIELD_NAME, '') or \
               DEFAULT_REDIRECT
     else:
+        if ERROR_MESSAGE:
+            messages.error(request, ERROR_MESSAGE)
         url = LOGIN_ERROR_URL
     return HttpResponseRedirect(url)