--- loncom/auth/lonacc.pm	2004/12/14 20:32:15	1.53
+++ loncom/auth/lonacc.pm	2005/01/28 09:30:40	1.60
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Cookie Based Access Handler
 #
-# $Id: lonacc.pm,v 1.53 2004/12/14 20:32:15 albertel Exp $
+# $Id: lonacc.pm,v 1.60 2005/01/28 09:30:40 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -117,7 +117,6 @@ sub handler {
                 if ($query) {
 		    &Apache::loncommon::get_unprocessed_cgi($query,['symb']);
                 }
-		&Apache::lonnet::logthis("form.symb is ".$ENV{'form.symb'});
                 if ($ENV{'form.symb'}) {
 		    $symb=&Apache::lonnet::symbclean($ENV{'form.symb'});
                     if ($requrl =~ m|^/adm/wrapper/|) {
@@ -139,6 +138,13 @@ sub handler {
                     }
                 } else {
 	            $symb=&Apache::lonnet::symbread($requrl);
+		    if (&Apache::lonnet::is_on_map($requrl) && $symb &&
+			!&Apache::lonnet::symbverify($symb,$requrl)) {
+			$r->log_reason('Invalid symb for '.$requrl.': '.$symb);
+		        $ENV{'user.error.msg'}=
+                                "$requrl:bre:1:1:Invalid Access";
+  	                return HTTP_NOT_ACCEPTABLE; 
+		    }
                     my ($map,$mid,$murl)=split(/\_\_\_/,$symb);
 		    &Apache::lonnet::symblist($map,$murl => $mid,
                                               'last_known' => $murl);
@@ -160,14 +166,21 @@ sub handler {
     if ($requrl=~m|^/public/|
 	|| (&Apache::lonnet::metadata($requrl,'copyright') eq 'public')) {
         &Apache::lonnet::logthis('Granting public access: '.$requrl);
-	my $buffer;
-	$r->read($buffer,$r->header_in('Content-length'),0);
-	&Apache::loncommon::get_unprocessed_cgi($buffer);
+	&Apache::loncommon::get_posted_cgi($r);
 	$ENV{'user.name'}='public';
         $ENV{'user.domain'}='public';
         $ENV{'request.state'} = "published";
         $ENV{'request.publicaccess'} = 1;
         $ENV{'request.filename'} = $r->filename;
+	my ($httpbrowser,  $clientbrowser, $clientversion,
+	    $clientmathml, $clientunicode, $clientos) =
+		&Apache::loncommon::decode_user_agent($r);
+	$ENV{'browser.type'}=$clientbrowser;
+        $ENV{'browser.version'}=$clientversion;
+        $ENV{'browser.mathml'}=$clientmathml;
+        $ENV{'browser.unicode'}=$clientunicode;
+        $ENV{'browser.os'}=$clientos;
+
         return OK;
     }
 # -------------------------------------------------------------- Not authorized