Item13449: Some tarfiles fail to expand due to ././@LongLink triggers

The TinyMCEPlugin won't install on 1.1.9 from the .tgz file, at least with older versions of cpan modules. Archive::Tar seems to have trouble with long filenames, and attempts to extract the @LongLink trigger name that is set in the archive when a filename exceeds the blocksize. The zipfile version installs fine. The following patch fixes the issue on 1.1.9, might be advisable on 1.2.0

diff --git a/lib/Foswiki/Configure/Util.pm b/lib/Foswiki/Configure/Util.pm
index dfc0196..f292c0c 100644
--- a/lib/Foswiki/Configure/Util.pm
+++ b/lib/Foswiki/Configure/Util.pm
@@ -476,6 +476,7 @@ sub _untar {
 
         my @members = $tar->list_files();
         foreach my $file (@members) {
+            next if ( $file eq '././@LongLink' );
             my $err = $tar->extract($file);
             unless ($err) {
                 return 'Failed to extract ', $file, ' from tar file ',

-- GeorgeClark - 09 Jun 2015

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