wwwstream: subclass off GzipFilter

[public-inbox.git] / lib / PublicInbox / WwwStream.pm

diff --git a/lib/PublicInbox/WwwStream.pm b/lib/PublicInbox/WwwStream.pm
index 915a71ba0bd82df950ee498f03c9a2c078a78a79..42fb183f482152d211dd9fe32a038fc2740097c3 100644 (file)
--- a/lib/PublicInbox/WwwStream.pm
+++ b/lib/PublicInbox/WwwStream.pm
@@ -8,8 +8,7 @@
 # more common "push" model)
 package PublicInbox::WwwStream;
 use strict;
-use warnings;
-use base qw(Exporter);
+use parent qw(Exporter PublicInbox::GzipFilter);
 our @EXPORT_OK = qw(html_oneshot);
 use bytes (); # length
 use PublicInbox::Hval qw(ascii_html prurl);
@@ -26,26 +25,23 @@ sub base_url ($) {
        $base_url;
 }
 
-sub new {
-       my ($class, $ctx, $cb) = @_;
-
-       bless {
-               nr => 0,
-               cb => $cb,
-               ctx => $ctx,
-               base_url => base_url($ctx),
-       }, $class;
+sub init {
+       my ($ctx, $cb) = @_;
+       $ctx->{cb} = $cb;
+       $ctx->{base_url} = base_url($ctx);
+       bless $ctx, __PACKAGE__;
 }
 
 sub response {
-       my ($class, $ctx, $code, $cb) = @_;
-       [ $code, [ 'Content-Type', 'text/html; charset=UTF-8' ],
-         $class->new($ctx, $cb) ]
+       my ($ctx, $code, $cb) = @_;
+       my $res_hdr = [ 'Content-Type' => 'text/html; charset=UTF-8' ];
+       init($ctx, $cb);
+       $ctx->{gz} = PublicInbox::GzipFilter::gz_or_noop($res_hdr, $ctx->{env});
+       [ $code, $res_hdr, $ctx ]
 }
 
-sub _html_top ($) {
-       my ($self) = @_;
-       my $ctx = $self->{ctx};
+sub html_top ($) {
+       my ($ctx) = @_;
        my $ibx = $ctx->{-inbox};
        my $desc = ascii_html($ibx->description);
        my $title = delete($ctx->{-title_html}) // $desc;
@@ -86,14 +82,13 @@ sub code_footer ($) {
 }
 
 sub _html_end {
-       my ($self) = @_;
+       my ($ctx) = @_;
        my $urls = 'Archives are clonable:';
-       my $ctx = $self->{ctx};
        my $ibx = $ctx->{-inbox};
        my $desc = ascii_html($ibx->description);
 
        my @urls;
-       my $http = $self->{base_url};
+       my $http = $ctx->{base_url};
        my $max = $ibx->max_git_epoch;
        my $dir = (split(m!/!, $http))[-1];
        my %seen = ($http => 1);
@@ -160,31 +155,28 @@ EOF
 
 # callback for HTTP.pm (and any other PSGI servers)
 sub getline {
-       my ($self) = @_;
-       my $nr = $self->{nr}++;
-
-       return _html_top($self) if $nr == 0;
-
-       if (my $middle = $self->{cb}) {
-               $middle = $middle->($nr, $self->{ctx}) and return $middle;
+       my ($ctx) = @_;
+       my $cb = $ctx->{cb} or return;
+       if (defined(my $buf = $cb->($ctx))) {
+               return $ctx->translate($buf);
        }
-
-       delete $self->{cb} ? _html_end($self) : undef;
+       delete $ctx->{cb};
+       $ctx->zflush(_html_end($ctx));
 }
 
 sub html_oneshot ($$;$) {
        my ($ctx, $code, $sref) = @_;
-       my $self = bless {
-               ctx => $ctx,
-               base_url => base_url($ctx),
-       }, __PACKAGE__;
-       my @x = (_html_top($self), $sref ? $$sref : (), _html_end($self));
-       my $len = 0;
-       $len += bytes::length($_) for @x;
-       [ $code, [
-               'Content-Type' => 'text/html; charset=UTF-8',
-               'Content-Length' => $len
-       ], \@x ];
+       $ctx->{base_url} = base_url($ctx);
+       bless $ctx, __PACKAGE__;
+       my @bdy;
+       my $res_hdr = [ 'Content-Type' => 'text/html; charset=UTF-8',
+               'Content-Length' => undef ];
+       $ctx->{gz} = PublicInbox::GzipFilter::gz_or_noop($res_hdr, $ctx->{env});
+       $ctx->zmore(html_top($ctx));
+       $ctx->zmore($$sref) if $sref;
+       $bdy[0] = $ctx->zflush(_html_end($ctx));
+       $res_hdr->[3] = bytes::length($bdy[0]);
+       [ $code, $res_hdr, \@bdy ]
 }
 
 1;