X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=lib%2FPublicInbox%2FMboxGz.pm;h=ab3c9770e994905eeb4fed04429267411c76242c;hb=e3b57fe9f68e80fc85cff46ccec9246b670f1312;hp=2b873451e585945f8939df08eaabd47cc02030db;hpb=07c51ae017dae0ea221ba756e9c6ec46f6a587de;p=public-inbox.git

diff --git a/lib/PublicInbox/MboxGz.pm b/lib/PublicInbox/MboxGz.pm
index 2b873451..ab3c9770 100644
--- a/lib/PublicInbox/MboxGz.pm
+++ b/lib/PublicInbox/MboxGz.pm
@@ -1,71 +1,51 @@
-# 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;
-use Compress::Raw::Zlib qw(Z_FINISH Z_OK);
-my %OPT = (-WindowBits => 15 + 16, -AppendOutput => 1);
-
-sub new {
-	my ($class, $ctx, $cb) = @_;
-	$ctx->{base_url} = $ctx->{-inbox}->base_url($ctx->{env});
-	my ($gz, $err) = Compress::Raw::Zlib::Deflate->new(%OPT);
-	$err == Z_OK or die "Deflate->new failed: $err";
-	bless { gz => $gz, cb => $cb, ctx => $ctx }, $class;
+*msg_hdr = \&PublicInbox::Mbox::msg_hdr;
+*msg_body = \&PublicInbox::Mbox::msg_body;
+
+sub async_next ($) {
+	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 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 (defined $fn && $fn ne '') {
-		$fn = to_filename($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);
 }
 
-sub gzip_fail ($$) {
-	my ($ctx, $err) = @_;
-	$ctx->{env}->{'psgi.errors'}->print("deflate failed: $err\n");
-	'';
-}
-
-# called by Plack::Util::foreach or similar
+# called by Plack::Util::foreach or similar (generic PSGI)
 sub getline {
 	my ($self) = @_;
-	my $ctx = $self->{ctx} or return;
-	my $gz = $self->{gz};
-	my $buf = delete($self->{buf});
-	while (my $smsg = $self->{cb}->($ctx)) {
-		my $mref = $ctx->{-inbox}->msg_by_smsg($smsg) or next;
-		my $h = Email::Simple->new($mref)->header_obj;
-
-		my $err = $gz->deflate(
-			PublicInbox::Mbox::msg_hdr($ctx, $h, $smsg->{mid}),
-		        $buf);
-		return gzip_fail($ctx, $err) if $err != Z_OK;
-
-		$err = $gz->deflate(PublicInbox::Mbox::msg_body($$mref), $buf);
-		return gzip_fail($ctx, $err) if $err != Z_OK;
-
-		return $buf if length($buf) >= 8192;
-
-		# be fair to other clients on public-inbox-httpd:
-		$self->{buf} = $buf;
-		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));
 	}
 	# signal that we're done and can return undef next call:
-	delete $self->{ctx};
-	my $err = $gz->flush($buf, Z_FINISH);
-	($err == Z_OK) ? $buf : gzip_fail($ctx, $err);
+	delete $self->{cb};
+	$self->zflush;
 }
 
-sub close {} # noop
-
+no warnings 'once';
+*async_eml = \&PublicInbox::Mbox::async_eml;
 1;