Fatal error: '.$html."
\n\n"; +}; our $style; +our $showkeys = !exists $get{keys} ? undef : + ($get{keys} ne '0' && ($get{keys} || 'always')); $header{content_type} = 'text/html; charset=utf-8'; sub stylesheet { my %styles = map {$_ => $_} @_; - $style = exists $get{style} && $styles{$get{style}} || $_[0]; + + if (defined( my $setstyle = $get{style} )) { + $style = $styles{ $setstyle }; + eval { + require CGI::Cookie; + my $cookie = CGI::Cookie->new( + -name => 'style', + -value => $setstyle || '', + -path => '/', # site-wide; current page is confusing to most users + -expires => $setstyle ? '+5y' : '-1d', + ) or die "empty object returned\n"; + AddCookie($cookie->as_string); + } or warn "Unable to create style cookie: $@"; + } + + $style ||= exists $cookie{style} && $styles{ $cookie{style} } || $_[0]; + return join "\n", map { sprintf( '', - $_ eq $style ? 'stylesheet' : 'alternate stylesheet', "/$_.css", $_ + $_ eq $style ? 'stylesheet' : 'alternate stylesheet', "/$_.css?1.7", $_ ) } @_; } +sub checkmodified { + my $lastmod; + for (@_) { + my $mod = stat $_ or next; + $mod = $mod->mtime or next; + $lastmod = $mod if $mod gt $lastmod; + } + + for ($ENV{HTTP_IF_MODIFIED_SINCE} || ()) { + next if str2time($_) < $lastmod; + $header{status} = '304 Same old'; + exit; + } + + $header{'Last-Modified'} = time2str($lastmod); +} + +sub Html { + my ($meta) = @_; + + # announce and check data modification + checkmodified( + $ENV{SCRIPT_FILENAME}, + (grep { /\bShiar_/ } values %INC), + $meta->{data} ? @{ $meta->{data} } : (), + ); + $header{'Cache-Control'} = sprintf 'max-age: ', 24*60*60; + + # default fallbacks + $meta->{stylesheet} ||= [qw'light dark circus mono red terse']; + $meta->{charset} ||= 'utf-8'; + + # optional amends + push @{ $meta->{raw} }, ( + '', + '', + !$showkeys ? '' + : $showkeys eq 'ghost' ? '' + : (), + '', + ) if $meta->{keys}; + + # flatten arrays + ref $_ eq 'ARRAY' and $_ = join ' ', @$_ for $meta->{description}; + ref $_ eq 'ARRAY' and $_ = join ', ', @$_ for $meta->{keywords}; + ref $_ eq 'ARRAY' and $_ = join "\n", @$_ for $meta->{raw}; + ref $_ eq 'ARRAY' and $_ = stylesheet(@$_)."\n" for $meta->{stylesheet}; + + # other vars + my ($file) = $ENV{SCRIPT_FILENAME} =~ m{ ([^/]+) \.plp$ }x; + + # leading output + $header{content_type} = "text/html; charset=$meta->{charset}"; + print <<"EOT"; + + + + + +