use HTTP::Status qw(status_message);
use HTTP::Date qw(time2str);
use IO::Handle;
-require PublicInbox::EvCleanup;
use PublicInbox::DS qw(msg_more);
use PublicInbox::Syscall qw(EPOLLIN EPOLLONESHOT);
+use PublicInbox::Tmpfile;
use constant {
CHUNK_START => -1, # [a-f0-9]+\r\n
CHUNK_END => -2, # \r\n
}
# middlewares such as Deflater may write empty strings
-sub chunked_wcb ($) {
- my ($self) = @_;
- sub {
- return if $_[0] eq '';
- msg_more($self, sprintf("%x\r\n", bytes::length($_[0])));
- msg_more($self, $_[0]);
-
- # use $self->write(\"\n\n") if you care about real-time
- # streaming responses, public-inbox WWW does not.
- msg_more($self, "\r\n");
- }
+sub chunked_write ($$) {
+ my $self = $_[0];
+ return if $_[1] eq '';
+ msg_more($self, sprintf("%x\r\n", bytes::length($_[1])));
+ msg_more($self, $_[1]);
+
+ # use $self->write(\"\n\n") if you care about real-time
+ # streaming responses, public-inbox WWW does not.
+ msg_more($self, "\r\n");
}
-sub identity_wcb ($) {
- my ($self) = @_;
- sub { $self->write(\($_[0])) if $_[0] ne '' }
+sub identity_write ($$) {
+ my $self = $_[0];
+ $self->write(\($_[1])) if $_[1] ne '';
}
sub next_request ($) {
}
}
-sub response_done_cb ($$) {
+sub response_done {
my ($self, $alive) = @_;
- sub {
- my $env = delete $self->{env};
- $self->write(\"0\r\n\r\n") if $alive == 2;
- $self->write($alive ? \&next_request : \&close);
- }
+ delete $self->{env}; # we're no longer busy
+ $self->write(\"0\r\n\r\n") if $alive == 2;
+ $self->write($alive ? \&next_request : \&close);
}
-sub getline_response ($$$) {
- my ($self, $write, $close) = @_;
+sub getline_response ($$) {
+ my ($self, $alive) = @_;
+ my $write = $alive == 2 ? \&chunked_write : \&identity_write;
my $pull; # DANGER: self-referential
$pull = sub {
my $forward = $self->{forward};
} if $forward;
if (defined $buf) {
- $write->($buf); # may close in PublicInbox::DS::write
+ # may close in PublicInbox::DS::write
+ $write->($self, $buf);
if ($self->{sock}) {
my $wbuf = $self->{wbuf} ||= [];
push @$wbuf, $pull;
- # wbuf may be populated by $write->($buf),
+ # wbuf may be populated by $write->(...$buf),
# no need to rearm if so:
$self->requeue if scalar(@$wbuf) == 1;
return; # likely
}
}
$forward = undef;
- $close->(); # call response_done_cb
+ response_done($self, $alive);
};
$pull->(); # kick-off!
sub response_write {
my ($self, $env, $res) = @_;
my $alive = response_header_write($self, $env, $res);
- my $close = response_done_cb($self, $alive);
- my $write = $alive == 2 ? chunked_wcb($self) : identity_wcb($self);
if (defined(my $body = $res->[2])) {
if (ref $body eq 'ARRAY') {
- $write->($_) foreach @$body;
- $close->();
+ if ($alive == 2) {
+ chunked_write($self, $_) for @$body;
+ } else {
+ identity_write($self, $_) for @$body;
+ }
+ response_done($self, $alive);
} else {
$self->{forward} = $body;
- getline_response($self, $write, $close);
+ getline_response($self, $alive);
}
+ # these are returned to the calling application:
+ } elsif ($alive == 2) {
+ bless [ $self, $alive ], 'PublicInbox::HTTP::Chunked';
} else {
- # this is returned to the calling application:
- Plack::Util::inline_object(write => $write, close => $close);
+ bless [ $self, $alive ], 'PublicInbox::HTTP::Identity';
}
}
sub input_tmpfile ($) {
- open($_[0], '+>', undef);
- $_[0]->autoflush(1);
+ my $input = tmpfile('http.input', $_[0]->{sock}) or return;
+ $input->autoflush(1);
+ $input;
}
sub input_prepare {
quit($self, 413);
return;
}
- input_tmpfile($input);
+ $input = input_tmpfile($self);
} elsif (env_chunked($env)) {
$len = CHUNK_START;
- input_tmpfile($input);
+ $input = input_tmpfile($self);
} else {
$input = $null_io;
}
sub close {
my $self = $_[0];
- if (my $env = delete $self->{env}) {
- delete $env->{'psgix.io'}; # prevent circular references
- }
+ delete $self->{env}; # prevent circular references
if (my $forward = delete $self->{forward}) {
eval { $forward->close };
err($self, "forward ->close error: $@") if $@;
($self->{rbuf} || $self->{env} || $self->{wbuf});
}
+# Chunked and Identity packages are used for writing responses.
+# They may be exposed to the PSGI application when the PSGI app
+# returns a CODE ref for "push"-based responses
+package PublicInbox::HTTP::Chunked;
+use strict;
+
+sub write {
+ # ([$http], $buf) = @_;
+ PublicInbox::HTTP::chunked_write($_[0]->[0], $_[1])
+}
+
+sub close {
+ # $_[0] = [$http, $alive]
+ PublicInbox::HTTP::response_done(@{$_[0]});
+}
+
+package PublicInbox::HTTP::Identity;
+use strict;
+our @ISA = qw(PublicInbox::HTTP::Chunked);
+
+sub write {
+ # ([$http], $buf) = @_;
+ PublicInbox::HTTP::identity_write($_[0]->[0], $_[1]);
+}
+
1;