no warnings 'uninitialized'; # save some useless checks for more legible code
use open IO => ':utf8';
+use File::stat 'stat';
+use HTTP::Date;
use Shiar_Sheet::KeySigns qw(%sign); # dependant on $get{ascii}
our $style;
) } @_;
}
+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 { /^Shiar_/ } values %INC),
+ $meta->{data} ? @{ $meta->{data} } : (),
+ );
+
# default fallbacks
$meta->{stylesheet} ||= [qw'light dark circus mono red terse'];
$meta->{charset} ||= 'utf-8';