[FIX] website_forum: allow moderators to see misbehaving user profiles

This is to help forum moderators to fight against
spammers. It was previously difficult as the spammer
profile became unreachable as soon as their karma
went below 1, even if they had other questions
or answers still published.

addons/website_forum/controllers/main.py

@@ -506,18 +506,27 @@ class WebsiteForum(http.Controller):
         Data = request.registry["ir.model.data"]
 
         user = User.browse(cr, SUPERUSER_ID, user_id, context=context)
-        if not user.exists() or user.karma < 1:
+        current_user = User.browse(cr, SUPERUSER_ID, uid, context=context)
+
+        # Users with high karma can see users with karma <= 0 for
+        # moderation purposes, IFF they have posted something (see below)
+        if (not user.exists() or
+               (user.karma < 1 and current_user.karma < forum.karma_unlink_all)):
             return werkzeug.utils.redirect("/forum/%s" % slug(forum))
         values = self._prepare_forum_values(forum=forum, **post)
-        if user_id != request.session.uid and not user.website_published:
-            return request.website.render("website_forum.private_profile", values)
+
         # questions and answers by user
-        user_questions, user_answers = [], []
         user_question_ids = Post.search(cr, uid, [
                 ('parent_id', '=', False),
                 ('forum_id', '=', forum.id), ('create_uid', '=', user.id),
             ], order='create_date desc', context=context)
         count_user_questions = len(user_question_ids)
+
+        if (user_id != request.session.uid and not
+                (user.website_published or
+                    (count_user_questions and current_user.karma > forum.karma_unlink_all))):
+            return request.website.render("website_forum.private_profile", values)
+
         # displaying only the 20 most recent questions
         user_questions = Post.browse(cr, uid, user_question_ids[:20], context=context)