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Item6890: Multi-value parameters lost during login redirect

Item Form Data

AppliesTo: Component: Priority: CurrentState: WaitingFor: TargetRelease ReleasedIn
Engine   Normal Closed   patch 5.1.2

Edit Form Data

Reported By:
Applies To:
Current State:
Waiting For:
Target Release:
Released In:


If you have a form that submits to the save script, and the form has multi-value parameters such as checkboxes or multi-select, only the first value is passed in case there is a redirect to the login screen, e.g. unauthenticated user.

Cause: The login form has hidden values that pass along all URL parameters. This is done with the help of QUERYPARAMS variable. That variable only took the first value.


--- TWiki.pm   (revision 23005)
+++ TWiki.pm   (working copy)
@@ -4120,14 +4120,16 @@
         # clean parameter names of illegal characters
         $name =~ s/['"<>].*//;
         # Issues multi-valued parameters as separate hiddens
-        my $value = $this->{request}->param( $name );
-        if ($encoding) {
-            $value = _encode($encoding, $value);
+        if( $name ) {
+            foreach my $value ( $this->{request}->param( $name ) ) {
+                $value = '' unless defined $value;
+                $value = _encode( $encoding, $value ) if( $encoding );
+                my $entry = $format;
+                $entry =~ s/\$name/$name/g;
+                $entry =~ s/\$value/$value/;
+                push( @list, $entry );
+            }
-        my $entry = $format;
-        $entry =~ s/\$name/$name/g;
-        $entry =~ s/\$value/$value/;
-        push(@list, $entry);
     return expandStandardEscapes(join($separator, @list));

-- TWiki:Main/PeterThoeny - 2012-06-21

Summary Multi-value parameters lost during login redirect
ReportedBy TWiki:Main.PeterThoeny
Codebase ~twiki4, 5.1.1
SVN Range TWiki-5.1.1-trunk, Fri, 15 Jun 2012, build 22996
AppliesTo Engine

Priority Normal
CurrentState Closed

Checkins TWikirev:23006 TWikirev:23007
TargetRelease patch
ReleasedIn 5.1.2
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Topic revision: r5 - 2012-10-07 - PeterThoeny
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