<:
use 5.014;
use utf8;
use warnings;
no warnings 'qw'; # you know what you doing
no warnings 'uninitialized'; # save some useless checks for more legible code
use open ':std' => ':utf8';
use File::stat 'stat';
use HTTP::Date;
use Encode qw( decode_utf8 );
sub Alert {
my ($html, $debug) = @_;
ref $html eq 'ARRAY' or $html = [$html];
my ($title, @lines) = @{$html};
$body = "
$title
";
$body .= "\n
$_
" for @lines;
$body .= "\n
$debug
" if $Dev and $debug;
say "
$body
\n";
}
$PLP::ERROR = sub {
my ($text, $html) = @_;
Alert("Fatal error: $html.");
warn $text;
};
BEGIN {
require Time::HiRes;
our $Time = [Time::HiRes::gettimeofday];
}
# user request
our $Dev = $ENV{HTTP_HOST} =~ /\bdev\./;
our ($file) = $ENV{SCRIPT_FILENAME} =~ m{ ([^/]+) \.plp$ }x;
our $Request = decode_utf8($ENV{PATH_INFO} =~ s{^/}{}r);
our $style;
our $showkeys = !exists $get{keys} ? undef :
($get{keys} ne '0' && ($get{keys} || 'always'));
$header{content_type} = 'text/html; charset=utf-8';
sub stylesheet {
my ($avail) = @_;
my @avail = ref $avail eq 'ARRAY' ? @{$avail} : $avail or return;
my %styles = map {$_ => $_} @avail;
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} } || $avail[0];
return map { sprintf(
'',
$_ eq $style ? 'stylesheet' : 'alternate stylesheet', "/$_.css?1.9", $_
) } @avail;
}
sub checkmodified {
my $lastmod = 0;
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';
# convert options to arrays
ref $_ eq 'ARRAY' or $_ = [$_]
for grep {$_} $meta->{raw}, $meta->{description}, $meta->{keywords};
# document headers before output
$header{content_type} = "text/html; charset=$meta->{charset}";
unshift @{ $meta->{raw} }, stylesheet($meta->{stylesheet});
# optional amends
push @{ $meta->{raw} }, (
'',
'',
!$showkeys ? ''
: $showkeys eq 'ghost' ? ''
: (),
'',
) if $meta->{keys};
# leading output
say '';
say '';
say '';
say '';
say sprintf '', $header{content_type};
say sprintf '%s', $meta->{title};
say sprintf '', EscapeHTML($_)
for join(' ', @{ $meta->{description} }) || ();
say sprintf '', EscapeHTML($_)
for join(', ', @{ $meta->{keywords} }) || ();
say '';
say '';
say for map { @{$_} } $meta->{raw} || ();
say '' if $Dev;
say '';
say '';
say sprintf '', $file;
# development version indicator
printf '