--- loncom/auth/loncacc.pm	2002/09/10 14:26:13	1.22
+++ loncom/auth/loncacc.pm	2003/02/03 18:03:52	1.25
@@ -2,7 +2,7 @@
 # Cookie Based Access Handler for Construction Area
 # (lonacc: 5/21/99,5/22,5/29,5/31 Gerd Kortemeyer)
 #
-# $Id: loncacc.pm,v 1.22 2002/09/10 14:26:13 www Exp $
+# $Id: loncacc.pm,v 1.25 2003/02/03 18:03:52 harris41 Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -31,7 +31,6 @@
 # YEAR=2001
 # 01/06,01/11,6/1,9/25,9/28,11/22,12/25,12/26,
 # 01/06/01,05/04,05/05,05/09 Gerd Kortemeyer
-# 12/21 Scott Harrison
 # YEAR=2002
 # 1/4 Gerd Kortemeyer
 ###
@@ -48,7 +47,8 @@ sub constructaccess {
     my ($url,$ownerdomain)=@_;
     my ($ownername)=($url=~/\/(?:\~|priv\/|home\/)(\w+)/);
     unless (($ownername) && ($ownerdomain)) { return ''; }
-
+    # We do not allow editing of previous versions of files.
+    if ($url=~/\.(\d+)\.(\w+)$/) { return ''; }
     if (($ownername eq $ENV{'user.name'}) &&
         ($ownerdomain eq $ENV{'user.domain'})) {
 	return ($ownername,$ownerdomain);
@@ -190,7 +190,7 @@ Apache::lonacc - Cookie Based Access Han
 
 =head1 SYNOPSIS
 
-Invoked (for various locations) by /etc/httpd/conf/srm.conf:
+Invoked (for various locations) by /etc/httpd/conf/loncapa_apache.conf:
 
  PerlAccessHandler       Apache::loncacc