-# Copyright (C) 2015-2019 all contributors <meta@public-inbox.org>
+# Copyright (C) 2015-2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
package PublicInbox::MboxGz;
use strict;
-use warnings;
-use Email::Simple;
+use parent 'PublicInbox::GzipFilter';
+use PublicInbox::Eml;
use PublicInbox::Hval qw/to_filename/;
use PublicInbox::Mbox;
-use IO::Compress::Gzip;
+*msg_hdr = \&PublicInbox::Mbox::msg_hdr;
+*msg_body = \&PublicInbox::Mbox::msg_body;
-sub new {
- my ($class, $ctx, $cb) = @_;
- my $buf = '';
- $ctx->{base_url} = $ctx->{-inbox}->base_url($ctx->{env});
- bless {
- buf => \$buf,
- gz => IO::Compress::Gzip->new(\$buf, Time => 0),
- cb => $cb,
- ctx => $ctx,
- }, $class;
+sub async_next ($) {
+ my ($http) = @_; # PublicInbox::HTTP
+ my $ctx = $http->{forward} or return;
+ eval {
+ $ctx->{smsg} = $ctx->{cb}->($ctx) or return $ctx->close;
+ $ctx->smsg_blob($ctx->{smsg});
+ };
+ warn "E: $@" if $@;
}
-sub response {
- my ($class, $ctx, $cb, $fn) = @_;
- my $body = $class->new($ctx, $cb);
+sub mbox_gz {
+ my ($self, $cb, $fn) = @_;
+ $self->{cb} = $cb;
+ $self->{base_url} = $self->{ibx}->base_url($self->{env});
+ $self->{gz} = PublicInbox::GzipFilter::gzip_or_die();
+ $fn = to_filename($fn // '') // 'no-subject';
# http://www.iana.org/assignments/media-types/application/gzip
- my @h = qw(Content-Type application/gzip);
- if ($fn) {
- $fn = to_filename($fn);
- push @h, 'Content-Disposition', "inline; filename=$fn.mbox.gz";
- }
- [ 200, \@h, $body ];
+ bless $self, __PACKAGE__;
+ my $res_hdr = [ 'Content-Type' => 'application/gzip',
+ 'Content-Disposition' => "inline; filename=$fn.mbox.gz" ];
+ $self->psgi_response(200, $res_hdr);
}
-# called by Plack::Util::foreach or similar
+# called by Plack::Util::foreach or similar (generic PSGI)
sub getline {
my ($self) = @_;
- my $ctx = $self->{ctx} or return;
- my $gz = $self->{gz};
- while (my $smsg = $self->{cb}->()) {
- my $mref = $ctx->{-inbox}->msg_by_smsg($smsg) or next;
- my $h = Email::Simple->new($mref)->header_obj;
- $gz->write(PublicInbox::Mbox::msg_hdr($ctx, $h, $smsg->{mid}));
- $gz->write(PublicInbox::Mbox::msg_body($$mref));
-
- my $bref = $self->{buf};
- if (length($$bref) >= 8192) {
- my $ret = $$bref; # copy :<
- ${$self->{buf}} = '';
- return $ret;
- }
-
- # be fair to other clients on public-inbox-httpd:
- return '';
+ my $cb = $self->{cb} or return;
+ while (my $smsg = $cb->($self)) {
+ my $eml = $self->{ibx}->smsg_eml($smsg) or next;
+ $self->zmore(msg_hdr($self, $eml, $smsg->{mid}));
+ return $self->translate(msg_body($eml));
}
- delete($self->{gz})->close;
# signal that we're done and can return undef next call:
- delete $self->{ctx};
- ${delete $self->{buf}};
+ delete $self->{cb};
+ $self->zflush;
}
-sub close {} # noop
-
+no warnings 'once';
+*async_eml = \&PublicInbox::Mbox::async_eml;
1;