package PublicInbox::WwwStream;
use strict;
use warnings;
+use base qw(Exporter);
+our @EXPORT_OK = qw(html_oneshot);
+use bytes (); # length
use PublicInbox::Hval qw(ascii_html prurl);
+use PublicInbox::GzipFilter qw(gzf_maybe);
our $TOR_URL = 'https://www.torproject.org/';
our $CODE_URL = 'https://public-inbox.org/public-inbox.git';
# noop for HTTP.pm (and any other PSGI servers)
sub close {}
+sub base_url ($) {
+ my $ctx = shift;
+ my $base_url = $ctx->{-inbox}->base_url($ctx->{env});
+ chop $base_url; # no trailing slash for clone
+ $base_url;
+}
+
sub new {
my ($class, $ctx, $cb) = @_;
- my $base_url = $ctx->{-inbox}->base_url($ctx->{env});
- chop $base_url; # no trailing slash for clone
bless {
nr => 0,
- cb => $cb || \&close,
+ cb => $cb,
ctx => $ctx,
- base_url => $base_url,
+ base_url => base_url($ctx),
}, $class;
}
sub response {
my ($class, $ctx, $code, $cb) = @_;
- [ $code, [ 'Content-Type', 'text/html; charset=UTF-8' ],
- $class->new($ctx, $cb) ]
+ my $h = [ 'Content-Type', 'text/html; charset=UTF-8' ];
+ my $self = $class->new($ctx, $cb);
+ $self->{gzf} = gzf_maybe($h, $ctx->{env});
+ [ $code, $h, $self ]
}
sub _html_top ($) {
my ($self) = @_;
my $nr = $self->{nr}++;
- return _html_top($self) if $nr == 0;
+ my $buf = do {
+ if ($nr == 0) {
+ _html_top($self);
+ } elsif (my $middle = $self->{cb}) {
+ $middle->($nr, $self->{ctx});
+ }
+ } // (delete($self->{cb}) ? _html_end($self) : undef);
- if (my $middle = $self->{cb}) {
- $middle = $middle->($nr, $self->{ctx}) and return $middle;
- }
+ # gzf may be GzipFilter, `undef' or `0'
+ my $gzf = $self->{gzf} or return $buf;
+
+ return $gzf->translate($buf) if defined $buf;
+ $self->{gzf} = 0; # next call to ->getline returns $buf (== undef)
+ $gzf->translate(undef);
+}
- delete $self->{cb} ? _html_end($self) : undef;
+sub html_oneshot ($$;$) {
+ my ($ctx, $code, $sref) = @_;
+ my $self = bless {
+ ctx => $ctx,
+ base_url => base_url($ctx),
+ }, __PACKAGE__;
+ my @x;
+ my $h = [ 'Content-Type' => 'text/html; charset=UTF-8',
+ 'Content-Length' => undef ];
+ if (my $gzf = gzf_maybe($h, $ctx->{env})) {
+ $gzf->zmore(_html_top($self));
+ $gzf->zmore($$sref) if $sref;
+ $x[0] = $gzf->zflush(_html_end($self));
+ $h->[3] = length($x[0]);
+ } else {
+ @x = (_html_top($self), $sref ? $$sref : (), _html_end($self));
+ $h->[3] += bytes::length($_) for @x;
+ }
+ [ $code, $h, \@x ]
}
1;