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| | # Copyright (C) all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# wraps a listen socket for HTTP and links it to the PSGI app in
# public-inbox-httpd
package PublicInbox::HTTPD;
use v5.10.1;
use strict;
use Plack::Util ();
use Plack::Builder;
use PublicInbox::HTTP;
use PublicInbox::HTTPD::Async;
sub pi_httpd_async { PublicInbox::HTTPD::Async->new(@_) }
# we have a different env for ever listener socket for
# SERVER_NAME, SERVER_PORT and psgi.url_scheme
# envs: listener FD => PSGI env
sub new { bless { envs => {} }, __PACKAGE__ }
# this becomes {srv_env} in PublicInbox::HTTP
sub env_for ($$$) {
my ($self, $srv, $client) = @_;
my $n = getsockname($srv) or die "not a socket: $srv $!\n";
my ($host, $port) = PublicInbox::Daemon::host_with_port($n);
{
SERVER_NAME => $host,
SERVER_PORT => $port,
SCRIPT_NAME => '',
'psgi.version' => [ 1, 1 ],
'psgi.errors' => \*STDERR,
'psgi.url_scheme' => $client->can('accept_SSL') ?
'https' : 'http',
'psgi.nonblocking' => Plack::Util::TRUE,
'psgi.streaming' => Plack::Util::TRUE,
'psgi.run_once' => Plack::Util::FALSE,
'psgi.multithread' => Plack::Util::FALSE,
'psgi.multiprocess' => Plack::Util::TRUE,
# We don't use this anywhere, but we can support
# other PSGI apps which might use it:
'psgix.input.buffered' => Plack::Util::TRUE,
# XXX unstable API!, only GitHTTPBackend needs
# this to limit git-http-backend(1) parallelism.
# We also check for the truthiness of this to
# detect when to use async paths for slow blobs
'pi-httpd.async' => \&pi_httpd_async,
'pi-httpd.app' => $self->{app},
}
}
sub refresh_groups {
my ($self) = @_;
my $app;
if (@main::ARGV) {
eval { $app = Plack::Util::load_psgi(@ARGV) };
die $@, <<EOM if $@;
$0 runs in /, command-line paths must be absolute
EOM
} else {
require PublicInbox::WWW;
my $www = PublicInbox::WWW->new;
$www->preload;
$app = builder {
eval { enable 'ReverseProxy' };
$@ and warn <<EOM;
Plack::Middleware::ReverseProxy missing,
URL generation for redirects may be wrong if behind a reverse proxy
EOM
enable 'Head';
sub { $www->call(@_) };
};
}
$_->{'pi-httpd.app'} = $app for values %{$self->{envs}};
$self->{app} = $app;
}
sub post_accept_cb { # for Listener->{post_accept}
my ($self) = @_;
sub {
my ($client, $addr, $srv) = @_; # $_[4] - tls_wrap (unused)
PublicInbox::HTTP->new($client, $addr,
$self->{envs}->{fileno($srv)} //=
env_for($self, $srv, $client));
}
}
1;
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