-# Copyright (C) 2015-2019 all contributors <meta@public-inbox.org>
+# Copyright (C) all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
#
# Each instance of this represents a NNTP client socket
+# fields:
+# nntpd: PublicInbox::NNTPD ref
+# article: per-session current article number
+# ibx: PublicInbox::Inbox ref
+# long_cb: long_response private data
package PublicInbox::NNTP;
use strict;
-use warnings;
-use base qw(PublicInbox::DS);
-use fields qw(nntpd article ng long_cb);
-use PublicInbox::MID qw(mid_escape);
-use Email::Simple;
+use v5.10.1;
+use parent qw(PublicInbox::DS);
+use PublicInbox::MID qw(mid_escape $MID_EXTRACT);
+use PublicInbox::Eml;
use POSIX qw(strftime);
use PublicInbox::DS qw(now);
-use Digest::SHA qw(sha1_hex);
+use PublicInbox::SHA qw(sha1_hex);
use Time::Local qw(timegm timelocal);
+use PublicInbox::GitAsyncCat;
+use PublicInbox::Address;
+
use constant {
LINE_MAX => 512, # RFC 977 section 2.3
- r501 => '501 command syntax error',
- r502 => '502 Command unavailable',
- r221 => '221 Header follows',
- r224 => '224 Overview information follows (multi-line)',
- r225 => '225 Headers follow (multi-line)',
- r430 => '430 No article with that message-id',
+ r501 => "501 command syntax error\r\n",
+ r502 => "502 Command unavailable\r\n",
+ r221 => "221 Header follows\r\n",
+ r225 => "225 Headers follow (multi-line)\r\n",
+ r430 => "430 No article with that message-id\r\n",
};
-use PublicInbox::Syscall qw(EPOLLIN EPOLLONESHOT);
use Errno qw(EAGAIN);
-
+my $ONE_MSGID = qr/\A$MID_EXTRACT\z/;
my @OVERVIEW = qw(Subject From Date Message-ID References);
my $OVERVIEW_FMT = join(":\r\n", @OVERVIEW, qw(Bytes Lines), '') .
- "Xref:full\r\n";
+ "Xref:full\r\n.\r\n";
my $LIST_HEADERS = join("\r\n", @OVERVIEW,
- qw(:bytes :lines Xref To Cc)) . "\r\n";
+ qw(:bytes :lines Xref To Cc)) . "\r\n.\r\n";
my $CAPABILITIES = <<"";
101 Capability list:\r
VERSION 2\r
LIST ACTIVE ACTIVE.TIMES NEWSGROUPS OVERVIEW.FMT\r
HDR\r
OVER\r
+COMPRESS DEFLATE\r
-my $have_deflate;
+sub do_greet ($) { $_[0]->write($_[0]->{nntpd}->{greet}) };
-sub greet ($) { $_[0]->write($_[0]->{nntpd}->{greet}) };
-
-sub new ($$$) {
- my ($class, $sock, $nntpd) = @_;
- my $self = fields::new($class);
- my $ev = EPOLLIN;
- my $wbuf;
- if (ref($sock) eq 'IO::Socket::SSL' && !$sock->accept_SSL) {
- return CORE::close($sock) if $! != EAGAIN;
- $ev = PublicInbox::TLS::epollbit();
- $wbuf = [ \&PublicInbox::DS::accept_tls_step, \&greet ];
- }
- $self->SUPER::new($sock, $ev | EPOLLONESHOT);
- $self->{nntpd} = $nntpd;
- if ($wbuf) {
- $self->{wbuf} = $wbuf;
- } else {
- greet($self);
- }
- $self->update_idle_time;
- $self;
+sub new {
+ my ($cls, $sock, $nntpd) = @_;
+ (bless { nntpd => $nntpd }, $cls)->greet($sock)
}
sub args_ok ($$) {
my ($cb, $argc) = @_;
my $tot = prototype $cb;
- my ($nreq, undef) = split(';', $tot);
+ my ($nreq, undef) = split(/;/, $tot);
$nreq = ($nreq =~ tr/$//) - 1;
$tot = ($tot =~ tr/$//) - 1;
($argc <= $tot && $argc >= $nreq);
# returns 1 if we can continue, 0 if not due to buffered writes or disconnect
sub process_line ($$) {
my ($self, $l) = @_;
- my ($req, @args) = split(/[ \t]/, $l);
+ my ($req, @args) = split(/[ \t]+/, $l);
return 1 unless defined($req); # skip blank line
- $req = $self->can('cmd_'.lc($req));
- return res($self, '500 command not recognized') unless $req;
- return res($self, r501) unless args_ok($req, scalar @args);
-
+ $req = $self->can('cmd_'.lc($req)) //
+ return $self->write(\"500 command not recognized\r\n");
+ return $self->write(\r501) unless args_ok($req, scalar @args);
my $res = eval { $req->($self, @args) };
my $err = $@;
if ($err && $self->{sock}) {
- local $/ = "\n";
- chomp($l);
- err($self, 'error from: %s (%s)', $l, $err);
- $res = '503 program fault - command not performed';
+ $l =~ s/\r?\n//s;
+ warn("error from: $l ($err)\n");
+ $res = \"503 program fault - command not performed\r\n";
}
- return 0 unless defined $res;
- res($self, $res);
+ defined($res) ? $self->write($res) : 0;
}
# The keyword argument is not used (rfc3977 5.2.2)
sub cmd_capabilities ($;$) {
my ($self, undef) = @_;
my $res = $CAPABILITIES;
- if (ref($self->{sock}) ne 'IO::Socket::SSL' &&
- $self->{nntpd}->{accept_tls}) {
+ if (!$self->{sock}->can('accept_SSL') &&
+ $self->{nntpd}->{ssl_ctx_opt}) {
$res .= "STARTTLS\r\n";
}
- $res .= '.';
+ $res .= ".\r\n";
}
sub cmd_mode ($$) {
my ($self, $arg) = @_;
- $arg = uc $arg;
- return r501 unless $arg eq 'READER';
- '201 Posting prohibited';
+ uc($arg) eq 'READER' ? \"201 Posting prohibited\r\n" : \r501;
}
-sub cmd_slave ($) { '202 slave status noted' }
+sub cmd_slave ($) { \"202 slave status noted\r\n" }
sub cmd_xgtitle ($;$) {
my ($self, $wildmat) = @_;
- more($self, '282 list of groups and descriptions follows');
+ $self->msg_more("282 list of groups and descriptions follows\r\n");
list_newsgroups($self, $wildmat);
- '.'
}
-sub list_overview_fmt ($) {
- my ($self) = @_;
- $self->msg_more($OVERVIEW_FMT);
+sub list_overview_fmt ($) { $OVERVIEW_FMT }
+
+sub list_headers ($;$) { $LIST_HEADERS }
+
+sub names2ibx ($;$) {
+ my ($self, $names) = @_;
+ my $groups = $self->{nntpd}->{pi_cfg}->{-by_newsgroup};
+ if ($names) { # modify arrayref in-place
+ $_ = $groups->{$_} for @$names;
+ $names; # now an arrayref of ibx
+ } else {
+ my @ret = map { $groups->{$_} } @{$self->{nntpd}->{groupnames}};
+ \@ret;
+ }
}
-sub list_headers ($;$) {
- my ($self) = @_;
- $self->msg_more($LIST_HEADERS);
+sub list_active_i { # "LIST ACTIVE" and also just "LIST" (no args)
+ my ($self, $ibxs) = @_;
+ my @window = splice(@$ibxs, 0, 1000);
+ emit_group_lines($self, \@window);
+ scalar @$ibxs; # continue if there's more
}
-sub list_active ($;$) {
+sub list_active ($;$) { # called by cmd_list
my ($self, $wildmat) = @_;
wildmat2re($wildmat);
- foreach my $ng (@{$self->{nntpd}->{grouplist}}) {
- $ng->{newsgroup} =~ $wildmat or next;
- group_line($self, $ng);
- }
+ my @names = grep(/$wildmat/, @{$self->{nntpd}->{groupnames}});
+ $self->long_response(\&list_active_i, names2ibx($self, \@names));
+}
+
+sub list_active_times_i {
+ my ($self, $ibxs) = @_;
+ my @window = splice(@$ibxs, 0, 1000);
+ $self->msg_more(join('', map {
+ my $c = eval { $_->uidvalidity } // time;
+ "$_->{newsgroup} $c <$_->{-primary_address}>\r\n";
+ } @window));
+ scalar @$ibxs; # continue if there's more
}
-sub list_active_times ($;$) {
+sub list_active_times ($;$) { # called by cmd_list
my ($self, $wildmat) = @_;
wildmat2re($wildmat);
- foreach my $ng (@{$self->{nntpd}->{grouplist}}) {
- $ng->{newsgroup} =~ $wildmat or next;
- my $c = eval { $ng->mm->created_at } || time;
- more($self, "$ng->{newsgroup} $c $ng->{-primary_address}");
- }
+ my @names = grep(/$wildmat/, @{$self->{nntpd}->{groupnames}});
+ $self->long_response(\&list_active_times_i, names2ibx($self, \@names));
+}
+
+sub list_newsgroups_i {
+ my ($self, $ibxs) = @_;
+ my @window = splice(@$ibxs, 0, 1000);
+ $self->msg_more(join('', map {
+ "$_->{newsgroup} ".$_->description."\r\n"
+ } @window));
+ scalar @$ibxs; # continue if there's more
}
-sub list_newsgroups ($;$) {
+sub list_newsgroups ($;$) { # called by cmd_list
my ($self, $wildmat) = @_;
wildmat2re($wildmat);
- foreach my $ng (@{$self->{nntpd}->{grouplist}}) {
- $ng->{newsgroup} =~ $wildmat or next;
- my $d = $ng->description;
- more($self, "$ng->{newsgroup} $d");
- }
+ my @names = grep(/$wildmat/, @{$self->{nntpd}->{groupnames}});
+ $self->long_response(\&list_newsgroups_i, names2ibx($self, \@names));
}
# LIST SUBSCRIPTIONS, DISTRIB.PATS are not supported
if (scalar @args) {
my $arg = shift @args;
$arg =~ tr/A-Z./a-z_/;
+ my $ret = $arg eq 'active';
$arg = "list_$arg";
$arg = $self->can($arg);
return r501 unless $arg && args_ok($arg, scalar @args);
- more($self, '215 information follows');
+ $self->msg_more("215 information follows\r\n");
$arg->($self, @args);
} else {
- more($self, '215 list of newsgroups follows');
- foreach my $ng (@{$self->{nntpd}->{grouplist}}) {
- group_line($self, $ng);
- }
+ $self->msg_more("215 list of newsgroups follows\r\n");
+ $self->long_response(\&list_active_i, names2ibx($self));
}
- '.'
+}
+
+sub listgroup_range_i {
+ my ($self, $beg, $end) = @_;
+ my $r = $self->{ibx}->mm(1)->msg_range($beg, $end, 'num');
+ scalar(@$r) or return;
+ $self->msg_more(join('', map { "$_->[0]\r\n" } @$r));
+ 1;
+}
+
+sub listgroup_all_i {
+ my ($self, $num) = @_;
+ my $ary = $self->{ibx}->over(1)->ids_after($num);
+ scalar(@$ary) or return;
+ $self->msg_more(join("\r\n", @$ary, ''));
+ 1;
}
sub cmd_listgroup ($;$$) {
my ($self, $group, $range) = @_;
if (defined $group) {
my $res = cmd_group($self, $group);
- return $res if ($res !~ /\A211 /);
- more($self, $res);
+ return $res if ref($res); # error if const strref
+ $self->msg_more($res);
}
- my $ng = $self->{ng} or return '412 no newsgroup selected';
- my $mm = $ng->mm;
+ $self->{ibx} or return \"412 no newsgroup selected\r\n";
if (defined $range) {
my $r = get_range($self, $range);
return $r unless ref $r;
- my ($beg, $end) = @$r;
- long_response($self, sub {
- $r = $mm->msg_range($beg, $end, 'num');
- scalar(@$r) or return;
- more($self, join("\r\n", map { $_->[0] } @$r));
- 1;
- });
+ $self->long_response(\&listgroup_range_i, @$r);
} else { # grab every article number
- my $n = 0;
- long_response($self, sub {
- my $ary = $mm->ids_after(\$n);
- scalar(@$ary) or return;
- more($self, join("\r\n", @$ary));
- 1;
- });
+ $self->long_response(\&listgroup_all_i, \(my $num = 0));
}
}
$gmt =~ /\A(?:UTC|GMT)\z/i or die "GM invalid: $gmt";
$gmt = 1;
}
- my @now = $gmt ? gmtime : localtime;
my ($YYYY, $MM, $DD);
- if (bytes::length($date) == 8) { # RFC 3977 allows YYYYMMDD
+ if (length($date) == 8) { # RFC 3977 allows YYYYMMDD
($YYYY, $MM, $DD) = unpack('A4A2A2', $date);
} else { # legacy clients send YYMMDD
- ($YYYY, $MM, $DD) = unpack('A2A2A2', $date);
+ my $YY;
+ ($YY, $MM, $DD) = unpack('A2A2A2', $date);
+ my @now = $gmt ? gmtime : localtime;
my $cur_year = $now[5] + 1900;
- if ($YYYY > $cur_year) {
- $YYYY += int($cur_year / 1000) * 1000 - 100;
- }
+ my $cur_cent = int($cur_year / 100) * 100;
+ $YYYY = (($YY + $cur_cent) > $cur_year) ?
+ ($YY + 1900) : ($YY + $cur_cent);
}
if ($gmt) {
timegm($ss, $mm, $hh, $DD, $MM - 1, $YYYY);
}
}
-sub group_line ($$) {
- my ($self, $ng) = @_;
- my ($min, $max) = $ng->mm->minmax;
- more($self, "$ng->{newsgroup} $max $min n") if defined $min && defined $max;
+sub emit_group_lines {
+ my ($self, $ibxs) = @_;
+ my ($min, $max);
+ my $ALL = $self->{nntpd}->{pi_cfg}->ALL;
+ my $misc = $ALL->misc if $ALL;
+ my $buf = '';
+ for my $ibx (@$ibxs) {
+ $misc ? $misc->inbox_data($ibx) :
+ delete(@$ibx{qw(-art_min -art_max)});
+ ($min, $max) = ($ibx->art_min, $ibx->art_max);
+ $buf .= "$ibx->{newsgroup} $max $min n\r\n";
+ }
+ $self->msg_more($buf);
+}
+
+sub newgroups_i {
+ my ($self, $ts, $ibxs) = @_;
+ my @window = splice(@$ibxs, 0, 1000);
+ @window = grep { (eval { $_->uidvalidity } // 0) > $ts } @window;
+ emit_group_lines($self, \@window);
+ scalar @$ibxs; # any more?
}
sub cmd_newgroups ($$$;$$) {
return r501 if $@;
# TODO dists
- more($self, '231 list of new newsgroups follows');
- foreach my $ng (@{$self->{nntpd}->{grouplist}}) {
- my $c = eval { $ng->mm->created_at } || 0;
- next unless $c > $ts;
- group_line($self, $ng);
- }
- '.'
+ $self->msg_more("231 list of new newsgroups follows\r\n");
+ $self->long_response(\&newgroups_i, $ts, names2ibx($self));
}
sub wildmat2re (;$) {
$_[0] = qr/\A(?:$_[0])\z/;
}
+sub newnews_i {
+ my ($self, $ibxs, $ts, $prev) = @_;
+ if (my $over = $ibxs->[0]->over) {
+ my $msgs = $over->query_ts($ts, $$prev);
+ if (scalar @$msgs) {
+ $self->msg_more(join('', map {
+ "<$_->{mid}>\r\n";
+ } @$msgs));
+ $$prev = $msgs->[-1]->{num};
+ return 1; # continue on current group
+ }
+ }
+ shift @$ibxs;
+ if (@$ibxs) { # continue onto next newsgroup
+ $$prev = 0;
+ 1;
+ } else { # all done, break out of the long_response
+ undef;
+ }
+}
+
sub cmd_newnews ($$$$;$$) {
my ($self, $newsgroups, $date, $time, $gmt, $dists) = @_;
my $ts = eval { parse_time($date, $time, $gmt) };
return r501 if $@;
- more($self, '230 list of new articles by message-id follows');
- my ($keep, $skip) = split('!', $newsgroups, 2);
+ $self->msg_more("230 list of new articles by message-id follows\r\n");
+ my ($keep, $skip) = split(/!/, $newsgroups, 2);
ngpat2re($keep);
ngpat2re($skip);
- my @over;
- foreach my $ng (@{$self->{nntpd}->{grouplist}}) {
- $ng->{newsgroup} =~ $keep or next;
- $ng->{newsgroup} =~ $skip and next;
- my $over = $ng->over or next;
- push @over, $over;
- };
- return '.' unless @over;
-
+ my @names = grep(/$keep/, @{$self->{nntpd}->{groupnames}});
+ @names = grep(!/$skip/, @names);
+ return \".\r\n" unless scalar(@names);
my $prev = 0;
- long_response($self, sub {
- my $over = $over[0];
- my $msgs = $over->query_ts($ts, $prev);
- if (scalar @$msgs) {
- more($self, '<' .
- join(">\r\n<", map { $_->mid } @$msgs ).
- '>');
- $prev = $msgs->[-1]->{num};
- } else {
- shift @over;
- if (@over) { # continue onto next newsgroup
- $prev = 0;
- return 1;
- } else { # break out of the long response.
- return;
- }
- }
- });
+ $self->long_response(\&newnews_i, names2ibx($self, \@names),
+ $ts, \$prev);
}
sub cmd_group ($$) {
my ($self, $group) = @_;
- my $no_such = '411 no such news group';
- my $ng = $self->{nntpd}->{groups}->{$group} or return $no_such;
+ my $nntpd = $self->{nntpd};
+ my $ibx = $nntpd->{pi_cfg}->{-by_newsgroup}->{$group} or
+ return \"411 no such news group\r\n";
+ $nntpd->idler_start;
- $self->{ng} = $ng;
- my ($min, $max) = $ng->mm->minmax;
- $min ||= 0;
- $max ||= 0;
+ $self->{ibx} = $ibx;
+ my ($min, $max) = $ibx->mm(1)->minmax;
$self->{article} = $min;
my $est_size = $max - $min;
- "211 $est_size $min $max $group";
+ "211 $est_size $min $max $group\r\n";
}
sub article_adj ($$) {
my ($self, $off) = @_;
- my $ng = $self->{ng} or return '412 no newsgroup selected';
-
- my $n = $self->{article};
- defined $n or return '420 no current article has been selected';
+ my $ibx = $self->{ibx} // return \"412 no newsgroup selected\r\n";
+ my $n = $self->{article} //
+ return \"420 no current article has been selected\r\n";
$n += $off;
- my $mid = $ng->mm->mid_for($n);
- unless ($mid) {
+ my $mid = $ibx->mm(1)->mid_for($n) // do {
$n = $off > 0 ? 'next' : 'previous';
- return "421 no $n article in this group";
- }
+ return "421 no $n article in this group\r\n";
+ };
$self->{article} = $n;
- "223 $n <$mid> article retrieved - request text separately";
+ "223 $n <$mid> article retrieved - request text separately\r\n";
}
sub cmd_next ($) { article_adj($_[0], 1) }
# the single-point-of-failure a single server provides.
sub cmd_post ($) {
my ($self) = @_;
- my $ng = $self->{ng};
- $ng ? "440 mailto:$ng->{-primary_address} to post"
- : '440 posting not allowed'
+ my $ibx = $self->{ibx};
+ $ibx ? "440 mailto:$ibx->{-primary_address} to post\r\n"
+ : \"440 posting not allowed\r\n"
}
sub cmd_quit ($) {
my ($self) = @_;
- res($self, '205 closing connection - goodbye!');
+ $self->write(\"205 closing connection - goodbye!\r\n");
$self->shutdn;
undef;
}
-sub header_append ($$$) {
- my ($hdr, $k, $v) = @_;
- my @v = $hdr->header($k);
- foreach (@v) {
- return if $v eq $_;
+sub xref_by_tc ($$$) {
+ my ($xref, $pi_cfg, $smsg) = @_;
+ my $by_addr = $pi_cfg->{-by_addr};
+ my $mid = $smsg->{mid};
+ for my $f (qw(to cc)) {
+ my @ibxs = map {
+ $by_addr->{lc($_)} // ()
+ } (PublicInbox::Address::emails($smsg->{$f} // ''));
+ for my $ibx (@ibxs) {
+ $xref->{$ibx->{newsgroup}} //=
+ $ibx->mm(1)->num_for($mid);
+ }
}
- $hdr->header_set($k, @v, $v);
}
-sub xref ($$$$) {
- my ($self, $ng, $n, $mid) = @_;
- my $ret = $self->{nntpd}->{servername} . " $ng->{newsgroup}:$n";
-
- # num_for is pretty cheap and sometimes we'll lookup the existence
- # of an article without getting even the OVER info. In other words,
- # I'm not sure if its worth optimizing by scanning To:/Cc: and
- # PublicInbox::ExtMsg on the PSGI end is just as expensive
- foreach my $other (@{$self->{nntpd}->{grouplist}}) {
- next if $ng eq $other;
- my $num = eval { $other->mm->num_for($mid) } or next;
- $ret .= " $other->{newsgroup}:$num";
+sub xref ($$$) {
+ my ($self, $cur_ibx, $smsg) = @_;
+ my $nntpd = $self->{nntpd};
+ my $cur_ng = $cur_ibx->{newsgroup};
+ my $xref;
+ if (my $ALL = $nntpd->{pi_cfg}->ALL) {
+ $xref = $ALL->nntp_xref_for($cur_ibx, $smsg);
+ xref_by_tc($xref, $nntpd->{pi_cfg}, $smsg);
+ } else { # slow path
+ $xref = { $cur_ng => $smsg->{num} };
+ my $mid = $smsg->{mid};
+ for my $ibx (values %{$nntpd->{pi_cfg}->{-by_newsgroup}}) {
+ $xref->{$ibx->{newsgroup}} //=
+ $ibx->mm(1)->num_for($mid);
+ }
+ }
+ my $ret = "$nntpd->{servername} $cur_ng:".delete($xref->{$cur_ng});
+ for my $ng (sort keys %$xref) {
+ my $num = $xref->{$ng} // next;
+ $ret .= " $ng:$num";
}
$ret;
}
-sub set_nntp_headers ($$$$$) {
- my ($self, $hdr, $ng, $n, $mid) = @_;
-
- # why? leafnode requires a Path: header for some inexplicable
- # reason. We'll fake the shortest one possible.
- $hdr->header_set('Path', 'y');
+sub set_nntp_headers ($$) {
+ my ($hdr, $smsg) = @_;
+ my ($mid) = $smsg->{mid};
# leafnode (and maybe other NNTP clients) have trouble dealing
# with v2 messages which have multiple Message-IDs (either due
# to our own content-based dedupe or buggy git-send-email versions).
- my @mids = $hdr->header('Message-ID');
+ my @mids = $hdr->header_raw('Message-ID');
if (scalar(@mids) > 1) {
my $mid0 = "<$mid>";
$hdr->header_set('Message-ID', $mid0);
- my @alt = $hdr->header('X-Alt-Message-ID');
+ my @alt = $hdr->header_raw('X-Alt-Message-ID');
my %seen = map { $_ => 1 } (@alt, $mid0);
- foreach my $m (@mids) {
- next if $seen{$m}++;
- push @alt, $m;
- }
+ push(@alt, grep { !$seen{$_}++ } @mids);
$hdr->header_set('X-Alt-Message-ID', @alt);
}
- # clobber some
- my $xref = xref($self, $ng, $n, $mid);
+ # clobber some existing headers
+ my $ibx = $smsg->{-ibx};
+ my $xref = xref($smsg->{nntp}, $ibx, $smsg);
$hdr->header_set('Xref', $xref);
- $xref =~ s/:[0-9]+//g;
- $hdr->header_set('Newsgroups', (split(/ /, $xref, 2))[1]);
- header_append($hdr, 'List-Post', "<mailto:$ng->{-primary_address}>");
- if (my $url = $ng->base_url) {
- $mid = mid_escape($mid);
- header_append($hdr, 'Archived-At', "<$url$mid/>");
- header_append($hdr, 'List-Archive', "<$url>");
- }
+
+ # RFC 5536 3.1.4
+ my ($server_name, $newsgroups) = split(/ /, $xref, 2);
+ $newsgroups =~ s/:[0-9]+\b//g; # drop NNTP article numbers
+ $newsgroups =~ tr/ /,/;
+ $hdr->header_set('Newsgroups', $newsgroups);
+
+ # *something* here is required for leafnode, try to follow
+ # RFC 5536 3.1.5...
+ $hdr->header_set('Path', $server_name . '!not-for-mail');
}
sub art_lookup ($$$) {
- my ($self, $art, $set_headers) = @_;
- my $ng = $self->{ng};
- my ($n, $mid);
+ my ($self, $art, $code) = @_;
+ my ($ibx, $n);
my $err;
if (defined $art) {
if ($art =~ /\A[0-9]+\z/) {
- $err = '423 no such article number in this group';
+ $err = \"423 no such article number in this group\r\n";
$n = int($art);
- goto find_mid;
- } elsif ($art =~ /\A<([^>]+)>\z/) {
- $mid = $1;
- $err = r430;
- $n = $ng->mm->num_for($mid) if $ng;
- goto found if defined $n;
- foreach my $g (values %{$self->{nntpd}->{groups}}) {
- $n = $g->mm->num_for($mid);
- if (defined $n) {
- $ng = $g;
- goto found;
- }
- }
- return $err;
+ goto find_ibx;
+ } elsif ($art =~ $ONE_MSGID) {
+ ($ibx, $n) = mid_lookup($self, $1);
+ goto found if $ibx;
+ return \r430;
} else {
- return r501;
+ return \r501;
}
} else {
- $err = '420 no current article has been selected';
- $n = $self->{article};
- defined $n or return $err;
-find_mid:
- $ng or return '412 no newsgroup has been selected';
- $mid = $ng->mm->mid_for($n);
- defined $mid or return $err;
+ $err = \"420 no current article has been selected\r\n";
+ $n = $self->{article} // return $err;
+find_ibx:
+ $ibx = $self->{ibx} or
+ return \"412 no newsgroup has been selected\r\n";
}
found:
- my $smsg = $ng->over->get_art($n) or return $err;
- my $msg = $ng->msg_by_smsg($smsg) or return $err;
-
- # Email::Simple->new will modify $msg in-place as documented
- # in its manpage, so what's left is the body and we won't need
- # to call Email::Simple::body(), later
- my $hdr = Email::Simple->new($msg)->header_obj;
- set_nntp_headers($self, $hdr, $ng, $n, $mid) if $set_headers;
- [ $n, $mid, $msg, $hdr ];
+ my $smsg = $ibx->over(1)->get_art($n) or return $err;
+ $smsg->{-ibx} = $ibx;
+ if ($code == 223) { # STAT
+ set_art($self, $n);
+ "223 $n <$smsg->{mid}> article retrieved - " .
+ "request text separately\r\n";
+ } else { # HEAD | BODY | ARTICLE
+ $smsg->{nntp} = $self;
+ $smsg->{nntp_code} = $code;
+ set_art($self, $art);
+ # this dereferences to `undef'
+ ${ibx_async_cat($ibx, $smsg->{blob}, \&blob_cb, $smsg)};
+ }
}
sub msg_body_write ($$) {
# these can momentarily double the memory consumption :<
$$msg =~ s/^\./../smg;
$$msg =~ s/(?<!\r)\n/\r\n/sg; # Alpine barfs without this
- $$msg .= "\r\n" unless $$msg =~ /\r\n\z/s;
+ $$msg .= "\r\n" unless substr($$msg, -2, 2) eq "\r\n";
$self->msg_more($$msg);
- '.'
}
sub set_art {
$self->{article} = $art if defined $art && $art =~ /\A[0-9]+\z/;
}
-sub msg_hdr_write ($$$) {
- my ($self, $hdr, $body_follows) = @_;
- $hdr = $hdr->as_string;
- utf8::encode($hdr);
- $hdr =~ s/(?<!\r)\n/\r\n/sg; # Alpine barfs without this
+sub msg_hdr_write ($$) {
+ my ($eml, $smsg) = @_;
+ set_nntp_headers($eml, $smsg);
+
+ my $hdr = $eml->{hdr} // \(my $x = '');
+ # fixup old bug from import (pre-a0c07cba0e5d8b6a)
+ $$hdr =~ s/\A[\r\n]*From [^\r\n]*\r?\n//s;
+ $$hdr =~ s/(?<!\r)\n/\r\n/sg; # Alpine barfs without this
# for leafnode compatibility, we need to ensure Message-ID headers
- # are only a single line. We can't subclass Email::Simple::Header
- # and override _default_fold_at in here, either; since that won't
- # affect messages already in the archive.
- $hdr =~ s/^(Message-ID:)[ \t]*\r\n[ \t]+([^\r]+)\r\n/$1 $2\r\n/igsm;
- $hdr .= "\r\n" if $body_follows;
- $self->msg_more($hdr);
+ # are only a single line.
+ $$hdr =~ s/^(Message-ID:)[ \t]*\r\n[ \t]+([^\r]+)\r\n/$1 $2\r\n/igsm;
+ $smsg->{nntp}->msg_more($$hdr);
+}
+
+sub blob_cb { # called by git->cat_async via ibx_async_cat
+ my ($bref, $oid, $type, $size, $smsg) = @_;
+ my $self = $smsg->{nntp};
+ my $code = $smsg->{nntp_code};
+ if (!defined($oid)) {
+ # it's possible to have TOCTOU if an admin runs
+ # public-inbox-(edit|purge), just move onto the next message
+ warn "E: $smsg->{blob} missing in $smsg->{-ibx}->{inboxdir}\n";
+ return $self->requeue;
+ } elsif ($smsg->{blob} ne $oid) {
+ $self->close;
+ die "BUG: $smsg->{blob} != $oid";
+ }
+ my $r = "$code $smsg->{num} <$smsg->{mid}> article retrieved - ";
+ my $eml = PublicInbox::Eml->new($bref);
+ if ($code == 220) {
+ $self->msg_more($r .= "head and body follow\r\n");
+ msg_hdr_write($eml, $smsg);
+ $self->msg_more("\r\n");
+ msg_body_write($self, $bref);
+ } elsif ($code == 221) {
+ $self->msg_more($r .= "head follows\r\n");
+ msg_hdr_write($eml, $smsg);
+ } elsif ($code == 222) {
+ $self->msg_more($r .= "body follows\r\n");
+ msg_body_write($self, $bref);
+ } else {
+ $self->close;
+ die "BUG: bad code: $r";
+ }
+ $self->write(\".\r\n"); # flushes (includes ->dflush)
+ $self->requeue;
}
sub cmd_article ($;$) {
my ($self, $art) = @_;
- my $r = art_lookup($self, $art, 1);
- return $r unless ref $r;
- my ($n, $mid, $msg, $hdr) = @$r;
- set_art($self, $art);
- more($self, "220 $n <$mid> article retrieved - head and body follow");
- msg_hdr_write($self, $hdr, 1);
- msg_body_write($self, $msg);
+ art_lookup($self, $art, 220);
}
sub cmd_head ($;$) {
my ($self, $art) = @_;
- my $r = art_lookup($self, $art, 2);
- return $r unless ref $r;
- my ($n, $mid, undef, $hdr) = @$r;
- set_art($self, $art);
- more($self, "221 $n <$mid> article retrieved - head follows");
- msg_hdr_write($self, $hdr, 0);
- '.'
+ art_lookup($self, $art, 221);
}
sub cmd_body ($;$) {
my ($self, $art) = @_;
- my $r = art_lookup($self, $art, 0);
- return $r unless ref $r;
- my ($n, $mid, $msg) = @$r;
- set_art($self, $art);
- more($self, "222 $n <$mid> article retrieved - body follows");
- msg_body_write($self, $msg);
+ art_lookup($self, $art, 222);
}
sub cmd_stat ($;$) {
my ($self, $art) = @_;
- my $r = art_lookup($self, $art, 0);
- return $r unless ref $r;
- my ($n, $mid) = @$r;
- set_art($self, $art);
- "223 $n <$mid> article retrieved - request text separately";
+ art_lookup($self, $art, 223); # art may be msgid
}
-sub cmd_ihave ($) { '435 article not wanted - do not send it' }
+sub cmd_ihave ($) { \"435 article not wanted - do not send it\r\n" }
-sub cmd_date ($) { '111 '.strftime('%Y%m%d%H%M%S', gmtime(time)) }
+sub cmd_date ($) { '111 '.strftime('%Y%m%d%H%M%S', gmtime(time))."\r\n" }
-sub cmd_help ($) {
- my ($self) = @_;
- more($self, '100 help text follows');
- '.'
-}
+sub cmd_help ($) { \"100 help text follows\r\n.\r\n" }
+# returns a ref on success
sub get_range ($$) {
my ($self, $range) = @_;
- my $ng = $self->{ng} or return '412 no news group has been selected';
- defined $range or return '420 No article(s) selected';
+ my $ibx = $self->{ibx} //
+ return "412 no news group has been selected\r\n";
+ $range // return "420 No article(s) selected\r\n";
my ($beg, $end);
- my ($min, $max) = $ng->mm->minmax;
+ my ($min, $max) = $ibx->mm(1)->minmax;
if ($range =~ /\A([0-9]+)\z/) {
$beg = $end = $1;
} elsif ($range =~ /\A([0-9]+)-\z/) {
}
$beg = $min if ($beg < $min);
$end = $max if ($end > $max);
- return '420 No article(s) selected' if ($beg > $end);
- [ \$beg, $end ];
+ $beg > $end ? "420 No article(s) selected\r\n" : [ \$beg, $end ];
}
-sub long_step {
- my ($self) = @_;
- # wbuf is unset or empty, here; {long} may add to it
- my ($cb, $t0, @args) = @{$self->{long_cb}};
- my $more = eval { $cb->($self, @args) };
- if ($@ || !$self->{sock}) { # something bad happened...
- delete $self->{long_cb};
- my $elapsed = now() - $t0;
- my $fd = fileno($self->{sock});
- if ($@) {
- err($self,
- "%s during long response[$fd] - %0.6f",
- $@, $elapsed);
- }
- out($self, " deferred[$fd] aborted - %0.6f", $elapsed);
- $self->close;
- } elsif ($more) { # $self->{wbuf}:
- $self->update_idle_time;
-
- # COMPRESS users all share the same DEFLATE context.
- # Flush it here to ensure clients don't see
- # each other's data
- $self->zflush;
-
- # no recursion, schedule another call ASAP
- # but only after all pending writes are done
- my $wbuf = $self->{wbuf} ||= [];
- push @$wbuf, \&long_step;
-
- # wbuf may be populated by $cb, no need to rearm if so:
- $self->requeue if scalar(@$wbuf) == 1;
- } else { # all done!
- delete $self->{long_cb};
- res($self, '.');
- my $elapsed = now() - $t0;
- my $fd = fileno($self->{sock});
- out($self, " deferred[$fd] done - %0.6f", $elapsed);
- my $wbuf = $self->{wbuf};
- $self->requeue unless $wbuf && @$wbuf;
- }
-}
-
-sub long_response ($$;@) {
- my ($self, $cb, @args) = @_; # cb returns true if more, false if done
-
- $self->{sock} or return;
- # make sure we disable reading during a long response,
- # clients should not be sending us stuff and making us do more
- # work while we are stream a response to them
- $self->{long_cb} = [ $cb, now(), @args ];
- long_step($self); # kick off!
- undef;
+sub long_response_done { $_[0]->write(\".\r\n") } # overrides superclass
+
+sub hdr_msgid_range_i {
+ my ($self, $beg, $end) = @_;
+ my $r = $self->{ibx}->mm(1)->msg_range($beg, $end);
+ @$r or return;
+ $self->msg_more(join('', map { "$_->[0] <$_->[1]>\r\n" } @$r));
+ 1;
}
sub hdr_message_id ($$$) { # optimize XHDR Message-ID [range] for slrnpull.
my ($self, $xhdr, $range) = @_;
- if (defined $range && $range =~ /\A<(.+)>\z/) { # Message-ID
- my ($ng, $n) = mid_lookup($self, $1);
+ if (defined $range && $range =~ $ONE_MSGID) {
+ my ($ibx, $n) = mid_lookup($self, $1);
return r430 unless $n;
- hdr_mid_response($self, $xhdr, $ng, $n, $range, $range);
+ hdr_mid_response($self, $xhdr, $ibx, $n, $range, $range);
} else { # numeric range
$range = $self->{article} unless defined $range;
my $r = get_range($self, $range);
return $r unless ref $r;
- my $mm = $self->{ng}->mm;
- my ($beg, $end) = @$r;
- more($self, $xhdr ? r221 : r225);
- long_response($self, sub {
- my $r = $mm->msg_range($beg, $end);
- @$r or return;
- more($self, join("\r\n", map {
- "$_->[0] <$_->[1]>"
- } @$r));
- 1;
- });
+ $self->msg_more($xhdr ? r221 : r225);
+ $self->long_response(\&hdr_msgid_range_i, @$r);
}
}
sub mid_lookup ($$) {
my ($self, $mid) = @_;
- my $self_ng = $self->{ng};
- if ($self_ng) {
- my $n = $self_ng->mm->num_for($mid);
- return ($self_ng, $n) if defined $n;
- }
- foreach my $ng (values %{$self->{nntpd}->{groups}}) {
- next if defined $self_ng && $ng eq $self_ng;
- my $n = $ng->mm->num_for($mid);
- return ($ng, $n) if defined $n;
+ my $cur_ibx = $self->{ibx};
+ if ($cur_ibx) {
+ my $n = $cur_ibx->mm(1)->num_for($mid);
+ return ($cur_ibx, $n) if defined $n;
+ }
+ my $pi_cfg = $self->{nntpd}->{pi_cfg};
+ if (my $ALL = $pi_cfg->ALL) {
+ my ($id, $prev);
+ while (my $smsg = $ALL->over->next_by_mid($mid, \$id, \$prev)) {
+ my $xr3 = $ALL->over->get_xref3($smsg->{num});
+ if (my @x = grep(/:$smsg->{blob}\z/, @$xr3)) {
+ my ($ngname, $xnum) = split(/:/, $x[0]);
+ my $ibx = $pi_cfg->{-by_newsgroup}->{$ngname};
+ return ($ibx, $xnum) if $ibx;
+ # fall through to trying all xref3s
+ } else {
+ warn <<EOF;
+W: xref3 missing for <$mid> ($smsg->{blob}) in $ALL->{topdir}, -extindex bug?
+EOF
+ }
+ # try all xref3s
+ for my $x (@$xr3) {
+ my ($ngname, $xnum) = split(/:/, $x);
+ my $ibx = $pi_cfg->{-by_newsgroup}->{$ngname};
+ return ($ibx, $xnum) if $ibx;
+ warn "W: `$ngname' does not exist for #$xnum\n";
+ }
+ }
+ # no warning here, $mid is just invalid
+ } else { # slow path for non-ALL users
+ for my $ibx (values %{$pi_cfg->{-by_newsgroup}}) {
+ next if defined $cur_ibx && $ibx eq $cur_ibx;
+ my $n = $ibx->mm(1)->num_for($mid);
+ return ($ibx, $n) if defined $n;
+ }
}
(undef, undef);
}
sub xref_range_i {
my ($self, $beg, $end) = @_;
- my $ng = $self->{ng};
- my $r = $ng->mm->msg_range($beg, $end);
- @$r or return;
- more($self, join("\r\n", map {
- my $num = $_->[0];
- "$num ".xref($self, $ng, $num, $_->[1]);
- } @$r));
+ my $ibx = $self->{ibx};
+ my $msgs = $ibx->over(1)->query_xover($$beg, $end);
+ scalar(@$msgs) or return;
+ $$beg = $msgs->[-1]->{num} + 1;
+ $self->msg_more(join('', map {
+ "$_->{num} ".xref($self, $ibx, $_) . "\r\n";
+ } @$msgs));
1;
}
sub hdr_xref ($$$) { # optimize XHDR Xref [range] for rtin
my ($self, $xhdr, $range) = @_;
- if (defined $range && $range =~ /\A<(.+)>\z/) { # Message-ID
+ if (defined $range && $range =~ $ONE_MSGID) {
my $mid = $1;
- my ($ng, $n) = mid_lookup($self, $mid);
+ my ($ibx, $n) = mid_lookup($self, $mid);
return r430 unless $n;
- hdr_mid_response($self, $xhdr, $ng, $n, $range,
- xref($self, $ng, $n, $mid));
+ my $smsg = $ibx->over(1)->get_art($n) or return;
+ hdr_mid_response($self, $xhdr, $ibx, $n, $range,
+ xref($self, $ibx, $smsg));
} else { # numeric range
$range = $self->{article} unless defined $range;
my $r = get_range($self, $range);
return $r unless ref $r;
- more($self, $xhdr ? r221 : r225);
- long_response($self, \&xref_range_i, @$r);
+ $self->msg_more($xhdr ? r221 : r225);
+ $self->long_response(\&xref_range_i, @$r);
}
}
sub over_header_for {
- my ($over, $num, $field) = @_;
- my $smsg = $over->get_art($num) or return;
- return PublicInbox::SearchMsg::date($smsg) if $field eq 'date';
+ my ($ibx, $num, $field) = @_;
+ my $smsg = $ibx->over(1)->get_art($num) or return;
+ return PublicInbox::Smsg::date($smsg) if $field eq 'date';
$smsg->{$field};
}
-sub searchmsg_range_i {
+sub smsg_range_i {
my ($self, $beg, $end, $field) = @_;
- my $over = $self->{ng}->over;
- my $msgs = $over->query_xover($$beg, $end);
+ my $msgs = $self->{ibx}->over(1)->query_xover($$beg, $end);
scalar(@$msgs) or return;
my $tmp = '';
- foreach my $s (@$msgs) {
- $tmp .= $s->{num} . ' ' . $s->$field . "\r\n";
+
+ # ->{$field} is faster than ->$field invocations, so favor that.
+ if ($field eq 'date') {
+ for my $s (@$msgs) {
+ $tmp .= "$s->{num} ".PublicInbox::Smsg::date($s)."\r\n"
+ }
+ } else {
+ for my $s (@$msgs) {
+ $tmp .= "$s->{num} $s->{$field}\r\n";
+ }
}
utf8::encode($tmp);
$self->msg_more($tmp);
$$beg = $msgs->[-1]->{num} + 1;
}
-sub hdr_searchmsg ($$$$) {
+sub hdr_smsg ($$$$) {
my ($self, $xhdr, $field, $range) = @_;
- if (defined $range && $range =~ /\A<(.+)>\z/) { # Message-ID
- my ($ng, $n) = mid_lookup($self, $1);
+ if (defined $range && $range =~ $ONE_MSGID) {
+ my ($ibx, $n) = mid_lookup($self, $1);
return r430 unless defined $n;
- my $v = over_header_for($ng->over, $n, $field);
- hdr_mid_response($self, $xhdr, $ng, $n, $range, $v);
+ my $v = over_header_for($ibx, $n, $field);
+ hdr_mid_response($self, $xhdr, $ibx, $n, $range, $v);
} else { # numeric range
$range = $self->{article} unless defined $range;
my $r = get_range($self, $range);
return $r unless ref $r;
- more($self, $xhdr ? r221 : r225);
- long_response($self, \&searchmsg_range_i, @$r, $field);
+ $self->msg_more($xhdr ? r221 : r225);
+ $self->long_response(\&smsg_range_i, @$r, $field);
}
}
hdr_xref($self, $xhdr, $range);
} elsif ($sub =~ /\A(?:subject|references|date|from|to|cc|
bytes|lines)\z/x) {
- hdr_searchmsg($self, $xhdr, $sub, $range);
+ hdr_smsg($self, $xhdr, $sub, $range);
} elsif ($sub =~ /\A:(bytes|lines)\z/) {
- hdr_searchmsg($self, $xhdr, $1, $range);
+ hdr_smsg($self, $xhdr, $1, $range);
} else {
- $xhdr ? (r221 . "\r\n.") : "503 HDR not permitted on $header";
+ $xhdr ? (r221.".\r\n") : "503 HDR not permitted on $header\r\n";
}
}
}
sub hdr_mid_prefix ($$$$$) {
- my ($self, $xhdr, $ng, $n, $mid) = @_;
+ my ($self, $xhdr, $ibx, $n, $mid) = @_;
return $mid if $xhdr;
# HDR for RFC 3977 users
- if (my $self_ng = $self->{ng}) {
- ($self_ng eq $ng) ? $n : '0';
+ if (my $cur_ibx = $self->{ibx}) {
+ ($cur_ibx eq $ibx) ? $n : '0';
} else {
'0';
}
}
sub hdr_mid_response ($$$$$$) {
- my ($self, $xhdr, $ng, $n, $mid, $v) = @_;
- my $res = '';
- if ($xhdr) {
- $res .= r221 . "\r\n";
- $res .= "$mid $v\r\n";
- } else {
- $res .= r225 . "\r\n";
- my $pfx = hdr_mid_prefix($self, $xhdr, $ng, $n, $mid);
- $res .= "$pfx $v\r\n";
- }
- res($self, $res .= '.');
+ my ($self, $xhdr, $ibx, $n, $mid, $v) = @_;
+ $self->write(($xhdr ? r221.$mid :
+ r225.hdr_mid_prefix($self, $xhdr, $ibx, $n, $mid)) .
+ " $v\r\n.\r\n");
undef;
}
sub xrover_i {
my ($self, $beg, $end) = @_;
- my $h = over_header_for($self->{ng}->over, $$beg, 'references');
- more($self, "$$beg $h") if defined($h);
+ my $h = over_header_for($self->{ibx}, $$beg, 'references');
+ $self->msg_more("$$beg $h\r\n") if defined($h);
$$beg++ < $end;
}
sub cmd_xrover ($;$) {
my ($self, $range) = @_;
- my $ng = $self->{ng} or return '412 no newsgroup selected';
+ my $ibx = $self->{ibx} or return \"412 no newsgroup selected\r\n";
(defined $range && $range =~ /[<>]/) and
- return '420 No article(s) selected'; # no message IDs
+ return \"420 No article(s) selected\r\n"; # no message IDs
$range = $self->{article} unless defined $range;
my $r = get_range($self, $range);
return $r unless ref $r;
- more($self, '224 Overview information follows');
- long_response($self, \&xrover_i, @$r);
+ $self->msg_more("224 Overview information follows\r\n");
+ $self->long_response(\&xrover_i, @$r);
}
-sub over_line ($$$$) {
- my ($self, $ng, $num, $smsg) = @_;
+sub over_line ($$$) {
+ my ($self, $ibx, $smsg) = @_;
# n.b. field access and procedural calls can be
# 10%-15% faster than OO method calls:
- my $s = join("\t", $num,
+ my $s = join("\t", $smsg->{num},
$smsg->{subject},
$smsg->{from},
- PublicInbox::SearchMsg::date($smsg),
+ PublicInbox::Smsg::date($smsg),
"<$smsg->{mid}>",
$smsg->{references},
$smsg->{bytes},
$smsg->{lines},
- "Xref: " . xref($self, $ng, $num, $smsg->{mid}));
+ "Xref: " . xref($self, $ibx, $smsg));
utf8::encode($s);
- $s
+ $s .= "\r\n";
}
sub cmd_over ($;$) {
my ($self, $range) = @_;
- if ($range && $range =~ /\A<(.+)>\z/) {
- my ($ng, $n) = mid_lookup($self, $1);
+ if ($range && $range =~ $ONE_MSGID) {
+ my ($ibx, $n) = mid_lookup($self, $1);
defined $n or return r430;
- my $smsg = $ng->over->get_art($n) or return r430;
- more($self, '224 Overview information follows (multi-line)');
+ my $smsg = $ibx->over(1)->get_art($n) or return r430;
+ $self->msg_more(
+ "224 Overview information follows (multi-line)\r\n");
# Only set article number column if it's the current group
- my $self_ng = $self->{ng};
- $n = 0 if (!$self_ng || $self_ng ne $ng);
- more($self, over_line($self, $ng, $n, $smsg));
- '.';
+ # (RFC 3977 8.3.2)
+ my $cur_ibx = $self->{ibx};
+ if (!$cur_ibx || $cur_ibx ne $ibx) {
+ # set {-orig_num} for nntp_xref_for
+ $smsg->{-orig_num} = $smsg->{num};
+ $smsg->{num} = 0;
+ }
+ over_line($self, $ibx, $smsg).".\r\n";
} else {
cmd_xover($self, $range);
}
}
+sub xover_i {
+ my ($self, $beg, $end) = @_;
+ my $ibx = $self->{ibx};
+ my $msgs = $ibx->over(1)->query_xover($$beg, $end);
+ my $nr = scalar @$msgs or return;
+
+ # OVERVIEW.FMT
+ $self->msg_more(join('', map {
+ over_line($self, $ibx, $_);
+ } @$msgs));
+ $$beg = $msgs->[-1]->{num} + 1;
+}
+
sub cmd_xover ($;$) {
my ($self, $range) = @_;
$range = $self->{article} unless defined $range;
my $r = get_range($self, $range);
return $r unless ref $r;
my ($beg, $end) = @$r;
- more($self, "224 Overview information follows for $$beg to $end");
- my $over = $self->{ng}->over;
- my $cur = $$beg;
- long_response($self, sub {
- my $msgs = $over->query_xover($cur, $end);
- my $nr = scalar @$msgs or return;
-
- # OVERVIEW.FMT
- more($self, join("\r\n", map {
- over_line($self, $self->{ng}, $_->{num}, $_);
- } @$msgs));
- $cur = $msgs->[-1]->{num} + 1;
- });
+ $self->msg_more(
+ "224 Overview information follows for $$beg to $end\r\n");
+ $self->long_response(\&xover_i, @$r);
}
-sub compressed { undef }
-
sub cmd_starttls ($) {
my ($self) = @_;
- my $sock = $self->{sock} or return;
# RFC 4642 2.2.1
- return r502 if (ref($sock) eq 'IO::Socket::SSL' || $self->compressed);
- my $opt = $self->{nntpd}->{accept_tls} or
- return '580 can not initiate TLS negotiation';
- res($self, '382 Continue with TLS negotiation');
- $self->{sock} = IO::Socket::SSL->start_SSL($sock, %$opt);
+ (($self->{sock} // return)->can('stop_SSL') || $self->compressed) and
+ return r502;
+ $self->{nntpd}->{ssl_ctx_opt} or
+ return \"580 can not initiate TLS negotiation\r\n";
+ $self->write(\"382 Continue with TLS negotiation\r\n");
+ PublicInbox::TLS::start($self->{sock}, $self->{nntpd});
$self->requeue if PublicInbox::DS::accept_tls_step($self);
undef;
}
# RFC 8054
sub cmd_compress ($$) {
my ($self, $alg) = @_;
- return '503 Only DEFLATE is supported' if uc($alg) ne 'DEFLATE';
- return r502 if $self->compressed || !$have_deflate;
- PublicInbox::NNTPdeflate->enable($self);
+ return "503 Only DEFLATE is supported\r\n" if uc($alg) ne 'DEFLATE';
+ return r502 if $self->compressed;
+ PublicInbox::NNTPdeflate->enable($self) or return
+ \"403 Unable to activate compression\r\n";
+ PublicInbox::DS::write($self, \"206 Compression active\r\n");
$self->requeue;
undef
}
-sub zflush {} # overridden by NNTPdeflate
-
sub cmd_xpath ($$) {
my ($self, $mid) = @_;
- return r501 unless $mid =~ /\A<(.+)>\z/;
+ return r501 unless $mid =~ $ONE_MSGID;
$mid = $1;
my @paths;
- foreach my $ng (values %{$self->{nntpd}->{groups}}) {
- my $n = $ng->mm->num_for($mid);
- push @paths, "$ng->{newsgroup}/$n" if defined $n;
+ my $pi_cfg = $self->{nntpd}->{pi_cfg};
+ my $groups = $pi_cfg->{-by_newsgroup};
+ if (my $ALL = $pi_cfg->ALL) {
+ my ($id, $prev, %seen);
+ while (my $smsg = $ALL->over->next_by_mid($mid, \$id, \$prev)) {
+ my $xr3 = $ALL->over->get_xref3($smsg->{num});
+ for my $x (@$xr3) {
+ my ($ngname, $n) = split(/:/, $x);
+ $x = "$ngname/$n";
+ if ($groups->{$ngname} && !$seen{$x}++) {
+ push(@paths, $x);
+ }
+ }
+ }
+ } else { # slow path, no point in using long_response
+ for my $ibx (values %$groups) {
+ my $n = $ibx->mm(1)->num_for($mid) // next;
+ push @paths, "$ibx->{newsgroup}/$n";
+ }
}
- return '430 no such article on server' unless @paths;
- '223 '.join(' ', @paths);
-}
-
-sub res ($$) { do_write($_[0], $_[1] . "\r\n") }
-
-sub more ($$) { $_[0]->msg_more($_[1] . "\r\n") }
-
-sub do_write ($$) {
- my $self = $_[0];
- my $done = $self->write(\($_[1]));
- return 0 unless $self->{sock};
-
- $done;
-}
-
-sub err ($$;@) {
- my ($self, $fmt, @args) = @_;
- printf { $self->{nntpd}->{err} } $fmt."\n", @args;
+ return \"430 no such article on server\r\n" unless @paths;
+ '223 '.join(' ', sort(@paths))."\r\n";
}
sub out ($$;@) {
# callback used by PublicInbox::DS for any (e)poll (in/out/hup/err)
sub event_step {
my ($self) = @_;
+ local $SIG{__WARN__} = $self->{nntpd}->{warn_cb};
+ return unless $self->flush_write && $self->{sock} && !$self->{long_cb};
- return unless $self->flush_write && $self->{sock};
-
- $self->update_idle_time;
# only read more requests if we've drained the write buffer,
# otherwise we can be buffering infinitely w/o backpressure
- my $rbuf = $self->{rbuf} // (\(my $x = ''));
- my $r = 1;
-
- if (index($$rbuf, "\n") < 0) {
- my $off = bytes::length($$rbuf);
- $r = $self->do_read($rbuf, LINE_MAX, $off) or return;
- }
- while ($r > 0 && $$rbuf =~ s/\A[ \t]*([^\n]*?)\r?\n//) {
- my $line = $1;
- return $self->close if $line =~ /[[:cntrl:]]/s;
- my $t0 = now();
- my $fd = fileno($self->{sock});
- $r = eval { process_line($self, $line) };
- my $pending = $self->{wbuf} ? ' pending' : '';
- out($self, "[$fd] %s - %0.6f$pending", $line, now() - $t0);
- }
-
+ my $rbuf = $self->{rbuf} // \(my $x = '');
+ my $line = index($$rbuf, "\n");
+ while ($line < 0) {
+ return $self->close if length($$rbuf) >= LINE_MAX;
+ $self->do_read($rbuf, LINE_MAX, length($$rbuf)) or return;
+ $line = index($$rbuf, "\n");
+ }
+ $line = substr($$rbuf, 0, $line + 1, '');
+ $line =~ s/\r?\n\z//s;
+ return $self->close if $line =~ /[[:cntrl:]]/s;
+
+ my $t0 = now();
+ my $fd = fileno($self->{sock});
+ my $r = eval { process_line($self, $line) };
+ my $pending = $self->{wbuf} ? ' pending' : '';
+ out($self, "[$fd] %s - %0.6f$pending", $line, now() - $t0);
return $self->close if $r < 0;
- my $len = bytes::length($$rbuf);
- return $self->close if ($len >= LINE_MAX);
$self->rbuf_idle($rbuf);
- $self->update_idle_time;
# maybe there's more pipelined data, or we'll have
# to register it for socket-readiness notifications
- $self->requeue unless $self->{wbuf};
+ $self->requeue unless $pending;
}
-# for graceful shutdown in PublicInbox::Daemon:
-sub busy {
- my ($self, $now) = @_;
- ($self->{rbuf} || $self->{wbuf} || $self->not_idle_long($now));
+sub busy { # for graceful shutdown in PublicInbox::Daemon:
+ my ($self) = @_;
+ defined($self->{rbuf}) || defined($self->{wbuf})
}
-# this is an import to prevent "perl -c" from complaining about fields
-sub import {
- $have_deflate = eval { require PublicInbox::NNTPdeflate } and
- $CAPABILITIES .= "COMPRESS DEFLATE\r\n";
-}
+package PublicInbox::NNTPdeflate;
+use PublicInbox::DSdeflate;
+our @ISA = qw(PublicInbox::DSdeflate PublicInbox::NNTP);
1;