# Copyright (C) 2015-2020 all contributors
# License: AGPL-3.0+
package PublicInbox::MboxGz;
use strict;
use parent 'PublicInbox::GzipFilter';
use PublicInbox::Eml;
use PublicInbox::Hval qw/to_filename/;
use PublicInbox::Mbox;
*msg_hdr = \&PublicInbox::Mbox::msg_hdr;
*msg_body = \&PublicInbox::Mbox::msg_body;
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 $@;
}
sub mbox_gz {
my ($self, $cb, $fn) = @_;
$self->{cb} = $cb;
$self->{base_url} = $self->{-inbox}->base_url($self->{env});
$self->{gz} = PublicInbox::GzipFilter::gzip_or_die();
$fn = to_filename($fn // '') // 'no-subject';
# http://www.iana.org/assignments/media-types/application/gzip
bless $self, __PACKAGE__;
my $res_hdr = [ 'Content-Type' => 'application/gzip',
'Content-Disposition' => "inline; filename=$fn.mbox.gz" ];
$self->psgi_response(200, $res_hdr);
}
# called by Plack::Util::foreach or similar (generic PSGI)
sub getline {
my ($self) = @_;
my $cb = $self->{cb} or return;
while (my $smsg = $cb->($self)) {
my $eml = $self->{-inbox}->smsg_eml($smsg) or next;
$self->zmore(msg_hdr($self, $eml, $smsg->{mid}));
return $self->translate(msg_body($eml));
}
# signal that we're done and can return undef next call:
delete $self->{cb};
$self->zflush;
}
no warnings 'once';
*async_eml = \&PublicInbox::Mbox::async_eml;
1;