Modified ssl certificate authentication to handle next redirection

Makes small changes in lms and cms both so that user's go to the
original page they intended to if they weren't already logged in

cms/djangoapps/contentstore/views/public.py

@@ -9,8 +9,9 @@ from django.conf import settings
 
 from edxmako.shortcuts import render_to_response
 
-from external_auth.views import ssl_login_shortcut, ssl_get_cert_from_request
-from microsite_configuration import microsite
+from external_auth.views import (ssl_login_shortcut, ssl_get_cert_from_request,
+                                 redirect_with_get)
+from microsite_configuration.middleware import MicrositeConfiguration
 
 __all__ = ['signup', 'login_page', 'howitworks']
 
@@ -26,7 +27,7 @@ def signup(request):
     if settings.FEATURES.get('AUTH_USE_CERTIFICATES_IMMEDIATE_SIGNUP'):
         # Redirect to course to login to process their certificate if SSL is enabled
         # and registration is disabled.
-        return redirect(reverse('login'))
+        return redirect_with_get('login', request.GET, False)
 
     return render_to_response('register.html', {'csrf': csrf_token})
 
@@ -43,11 +44,14 @@ def login_page(request):
         # SSL login doesn't require a login view, so redirect
         # to course now that the user is authenticated via
         # the decorator.
-        return redirect('/course')
+        next_url = request.GET.get('next')
+        if next_url:
+            return redirect(next_url)
+        else:
+            return redirect('/course')
     if settings.FEATURES.get('AUTH_USE_CAS'):
         # If CAS is enabled, redirect auth handling to there
         return redirect(reverse('cas-login'))
-
     return render_to_response(
         'login.html',
         {