Add logger + improve the way we build password reset url

dal/views.py

@@ -15,6 +15,10 @@ from .models import ResetToken
 from .forms import LoginForm
 from .ungleich_ldap import LdapManager
 
+import logging
+
+logger = logging.getLogger(__name__)
+
 # Imports for the extra stuff not in django
 
 from base64 import b64encode, b64decode
@@ -277,7 +281,10 @@ class ResetPassword(View):
         newdbentry = ResetToken(user=user, token=token, creation=epochutc)
         newdbentry.save()
         # set up the link
-        link = (base_url + '/reset/%s/%s/') % (userpart.decode('utf-8'), token)
+        link = "{base_url}/reset/{user}/{token}/".format(
+            base_url=base_url,user=userpart.decode('utf-8'),token=token
+        )
+        logger.debug("User reset url is {}".format(link))
         return link