smb2www parses download links wrong (especially with deeper trees)

[Maarten Fonville]

Because of the wrong parsing Apache will give an error like:
NT_STATUS_OBJECT_NAME_INVALID opening remote file \\Foldername/Filename.txt
while the actual URL that should be retrieved is:
\\hostname\Sharename\TopFolder\Foldername\Filename.txt

The error can be resolved by changing in the file /usr/share/perl5/smb2www.pm and in /usr/lib/cgi-bin/samba/smbfile.pl
$file =~ s/^(.*)\/([^\/]*)$/$1$2/ ;
to
$file =~ s/^(.*)(\/[^\/]*)$/$1$2/ ;

(and also it is useful to afterwards change all the forward slashes of the directories to backslashes to prevent other irregular problems:
$file =~ s/\//\\/g ;
)