Function to create an MIT user with LDAP data

This adds a function get_or_create_mit_user. As with the "get_or_create"
methods on managers, this returns an object satisfying some conditions,
creating it if necessary. In this case, we return a User object that's
populated using data from MIT's LDAP. If the user does not exist and
cannot be found in LDAP, we raise an exception.

diff --git a/__init__.py b/__init__.py
index 6b727108c8093c40e2c099ad3838adaa2a3fff53..725d660b713858074dd409407f40da558f02df7f 100644 (file)
--- a/__init__.py
+++ b/__init__.py
@@ -55,6 +55,24 @@ class ScriptsRemoteUserBackend(RemoteUserBackend):
         user.save()
         return user
 
+def get_or_create_mit_user(username, ):
+    """
+    Given an MIT username, return a Django user object for them.
+    If necessary, create (and save) the Django user for them.
+    If the MIT user doesn't exist, raises ValueError.
+    """
+    user, created = auth.models.User.objects.get_or_create(username=username, )
+    if created:
+        backend = ScriptsRemoteUserBackend()
+        # Raises ValueError if the user doesn't exist
+        try:
+            return backend.configure_user(user), created
+        except ValueError:
+            user.delete()
+            raise
+    else:
+        return user, created
+
 def scripts_login(request, **kwargs):
     host = request.META['HTTP_HOST'].split(':')[0]
     if host == 'localhost':