--- a/roundup/cgi/client.py	Mon Mar 25 19:46:20 2019 +0100
+++ b/roundup/cgi/client.py	Mon Mar 25 19:47:29 2019 +0100
@@ -237,15 +237,13 @@
        needed for handling json and xml data blobs under python
        3. Under python 2, str and binary are interchangable, not so
        under 3.
-
-       Note that there may be places where this should support text mode.
-       (e.g. a large text file upload??). None are known, but this could be
-       a problem.
     '''
     def make_file(self, mode=None):
         ''' work around https://bugs.python.org/issue27777 '''
         import tempfile
-        return tempfile.TemporaryFile("wb+")
+        if self.length >= 0:
+            return tempfile.TemporaryFile("wb+")
+        return super().make_file()
 
 class Client:
     """Instantiate to handle one CGI request.
@@ -527,7 +525,16 @@
         self.determine_language()
         # Open the database as the correct user.
         # TODO: add everything to RestfulDispatcher
-        self.determine_user()
+        try:
+            self.determine_user()
+        except LoginError as err:
+            self.response_code = http_.client.UNAUTHORIZED
+            output = b"Invalid Login\n"
+            self.setHeader("Content-Length", str(len(output)))
+            self.setHeader("Content-Type", "text/plain")
+            self.write(output)
+            return
+
         self.check_anonymous_access()
 
         # Call rest library to handle the request