# Copyright (C) 2016-2020 all contributors
# License: AGPL-3.0+
# represents an NNTPD (currently a singleton),
# see script/public-inbox-nntpd for how it is used
package PublicInbox::NNTPD;
use strict;
use warnings;
use Sys::Hostname;
use PublicInbox::Config;
use PublicInbox::InboxIdle;
sub new {
my ($class) = @_;
my $pi_cfg = PublicInbox::Config->new;
my $name = $pi_cfg->{'publicinbox.nntpserver'};
if (!defined($name) or $name eq '') {
$name = hostname;
} elsif (ref($name) eq 'ARRAY') {
$name = $name->[0];
}
bless {
groups => {},
err => \*STDERR,
out => \*STDOUT,
pi_cfg => $pi_cfg,
servername => $name,
greet => \"201 $name ready - post via email\r\n",
# accept_tls => { SSL_server => 1, ..., SSL_reuse_ctx => ... }
# idler => PublicInbox::InboxIdle
}, $class;
}
sub refresh_groups {
my ($self, $sig) = @_;
my $pi_cfg = $sig ? PublicInbox::Config->new : $self->{pi_cfg};
my $groups = $pi_cfg->{-by_newsgroup}; # filled during each_inbox
my $cache = eval { $pi_cfg->ALL->misc->nntpd_cache_load } // {};
$pi_cfg->each_inbox(sub {
my ($ibx) = @_;
my $ngname = $ibx->{newsgroup} // return;
my $ce = $cache->{$ngname};
if (($ce and (%$ibx = (%$ibx, %$ce))) || $ibx->nntp_usable) {
# only valid if msgmap and over works
# preload to avoid fragmentation:
$ibx->description;
$ibx->base_url;
} else {
delete $groups->{$ngname};
delete $ibx->{newsgroup};
# Note: don't be tempted to delete more for memory
# savings just yet: NNTP, IMAP, and WWW may all
# run in the same process someday.
}
});
$self->{groupnames} = [ sort(keys %$groups) ];
# this will destroy old groups that got deleted
$self->{pi_cfg} = $pi_cfg;
}
sub idler_start {
$_[0]->{idler} //= PublicInbox::InboxIdle->new($_[0]->{pi_cfg});
}
1;