Index: openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl,v
diff -u -r1.92 -r1.93
--- openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl	22 Mar 2008 18:31:32 -0000	1.92
+++ openacs-4/packages/acs-tcl/tcl/request-processor-procs.tcl	7 Jun 2008 20:28:58 -0000	1.93
@@ -812,6 +812,20 @@
   the server.
 
 } {
+
+  # DRB: Fix obscure case where we are served a request like GET http://www.google.com.
+  # In this case AOLserver 4.0.10 (at least) doesn't run the preauth filter "rp_filter",
+  # but rather tries to serve /global/file-not-found directly.  rp_handler dies a horrible
+  # death if it's called without ad_conn being set up.  My fix is to simply redirect
+  # to the url AOLserver substitutes if ad_conn does not exist (rp_filter begins with
+  # ad_conn -reset) ...
+
+  global ad_conn
+  if { ![info exists ad_conn] } {
+      ad_returnredirect [ns_conn url]
+      return
+  }
+
   # JCD: keep track of rp_handler call count to prevent dev support from recording 
   # information twice when for example we get a 404 internal redirect. We should probably 
   set recursion_count [ad_conn recursion_count]