use constant {
LINE_MAX => 512, # RFC 977 section 2.3
- r501 => '501 command syntax error',
- r502 => '502 Command unavailable',
+ r501 => "501 command syntax error\r\n",
+ r502 => "502 Command unavailable\r\n",
r221 => "221 Header follows\r\n",
- r224 => '224 Overview information follows (multi-line)',
r225 => "225 Headers follow (multi-line)\r\n",
- r430 => '430 No article with that message-id',
+ 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 $CAPABILITIES = <<"";
101 Capability list:\r
VERSION 2\r
OVER\r
COMPRESS DEFLATE\r
-sub greet ($) { $_[0]->write($_[0]->{nntpd}->{greet}) };
-
-sub new ($$$) {
- my ($class, $sock, $nntpd) = @_;
- my $self = bless { nntpd => $nntpd }, $class;
- my $ev = EPOLLIN;
- my $wbuf;
- if ($sock->can('accept_SSL') && !$sock->accept_SSL) {
- return CORE::close($sock) if $! != EAGAIN;
- $ev = PublicInbox::TLS::epollbit() or return CORE::close($sock);
- $wbuf = [ \&PublicInbox::DS::accept_tls_step, \&greet ];
- }
- $self->SUPER::new($sock, $ev | EPOLLONESHOT);
- if ($wbuf) {
- $self->{wbuf} = $wbuf;
- } else {
- greet($self);
- }
- $self;
+sub do_greet ($) { $_[0]->write($_[0]->{nntpd}->{greet}) };
+
+sub new {
+ my ($cls, $sock, $nntpd) = @_;
+ (bless { nntpd => $nntpd }, $cls)->greet($sock)
}
sub args_ok ($$) {
return 1 unless defined($req); # skip blank line
$req = $self->can('cmd_'.lc($req)) //
return $self->write(\"500 command not recognized\r\n");
- return res($self, r501) unless args_ok($req, scalar @args);
-
+ 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';
+ $res = \"503 program fault - command not performed\r\n";
}
- defined($res) ? res($self, $res) : 0;
+ defined($res) ? $self->write($res) : 0;
}
# The keyword argument is not used (rfc3977 5.2.2)
$self->{nntpd}->{accept_tls}) {
$res .= "STARTTLS\r\n";
}
- $res .= '.';
+ $res .= ".\r\n";
}
sub cmd_mode ($$) {
my ($self, $arg) = @_;
- uc($arg) eq 'READER' ? '201 Posting prohibited' : r501;
+ 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);
}
for my $ngname (@window) {
my $ibx = $groups->{$ngname} or next;
my $c = eval { $ibx->uidvalidity } // time;
- more($self, "$ngname $c <$ibx->{-primary_address}>");
+ $self->msg_more("$ngname $c <$ibx->{-primary_address}>\r\n");
}
scalar(@$groupnames); # continue if there's more
}
my $ibx;
for my $ngname (@window) {
$ibx = $groups->{$ngname} and
- more($self, "$ngname ".$ibx->description);
+ $self->msg_more("$ngname ".$ibx->description."\r\n");
}
scalar(@$groupnames); # continue if there's more
}
$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');
+ $self->msg_more("215 list of newsgroups follows\r\n");
long_response($self, \&list_active_i, [ # copy array
@{$self->{nntpd}->{groupnames}} ]);
}
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));
+ $self->msg_more(join("\r\n", @$r, ''));
1;
}
my ($self, $num) = @_;
my $ary = $self->{ibx}->over(1)->ids_after($num);
scalar(@$ary) or return;
- more($self, join("\r\n", @$ary));
+ $self->msg_more(join("\r\n", @$ary, ''));
1;
}
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);
}
- $self->{ibx} or return '412 no newsgroup selected';
+ $self->{ibx} or return \"412 no newsgroup selected\r\n";
if (defined $range) {
my $r = get_range($self, $range);
return $r unless ref $r;
sub group_line ($$) {
my ($self, $ibx) = @_;
my ($min, $max) = $ibx->mm(1)->minmax;
- more($self, "$ibx->{newsgroup} $max $min n");
+ $self->msg_more("$ibx->{newsgroup} $max $min n\r\n");
}
sub newgroups_i {
return r501 if $@;
# TODO dists
- more($self, '231 list of new newsgroups follows');
+ $self->msg_more("231 list of new newsgroups follows\r\n");
long_response($self, \&newgroups_i, $ts, \(my $i = 0),
$self->{nntpd}->{groupnames});
}
my ($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');
+ $self->msg_more("230 list of new articles by message-id follows\r\n");
my ($keep, $skip) = split(/!/, $newsgroups, 2);
ngpat2re($keep);
ngpat2re($skip);
my @names = grep(!/$skip/, grep(/$keep/,
@{$self->{nntpd}->{groupnames}}));
- return '.' unless scalar(@names);
+ return ".\r\n" unless scalar(@names);
my $prev = 0;
long_response($self, \&newnews_i, \@names, $ts, \$prev);
}
my ($self, $group) = @_;
my $nntpd = $self->{nntpd};
my $ibx = $nntpd->{pi_cfg}->{-by_newsgroup}->{$group} or
- return '411 no such news group';
+ return \"411 no such news group\r\n";
$nntpd->idler_start;
$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 $ibx = $self->{ibx} 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 = $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) }
sub cmd_post ($) {
my ($self) = @_;
my $ibx = $self->{ibx};
- $ibx ? "440 mailto:$ibx->{-primary_address} to post"
- : '440 posting not allowed'
+ $ibx ? "440 mailto:$ibx->{-primary_address} to post\r\n"
+ : \"440 posting not allowed\r\n"
}
sub cmd_quit ($) {
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_ibx;
} elsif ($art =~ $ONE_MSGID) {
($ibx, $n) = mid_lookup($self, $1);
goto found if $ibx;
- return r430;
+ return \r430;
} else {
- return r501;
+ return \r501;
}
} else {
- $err = '420 no current article has been selected';
+ $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';
+ return \"412 no newsgroup has been selected\r\n";
}
found:
my $smsg = $ibx->over(1)->get_art($n) or return $err;
if ($code == 223) { # STAT
set_art($self, $n);
"223 $n <$smsg->{mid}> article retrieved - " .
- "request text separately";
+ "request text separately\r\n";
} else { # HEAD | BODY | ARTICLE
$smsg->{nntp} = $self;
$smsg->{nntp_code} = $code;
my $r = "$code $smsg->{num} <$smsg->{mid}> article retrieved - ";
my $eml = PublicInbox::Eml->new($bref);
if ($code == 220) {
- more($self, $r .= 'head and body follow');
+ $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) {
- more($self, $r .= 'head follows');
+ $self->msg_more($r .= "head follows\r\n");
msg_hdr_write($eml, $smsg);
} elsif ($code == 222) {
- more($self, $r .= 'body follows');
+ $self->msg_more($r .= "body follows\r\n");
msg_body_write($self, $bref);
} else {
$self->close;
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 $ibx = $self->{ibx} 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) = $ibx->mm(1)->minmax;
if ($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, $end ];
}
sub long_step {
out($self, " deferred[$fd] aborted - %0.6f", $elapsed);
$self->close;
} elsif ($more) { # $self->{wbuf}:
- # 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. autovivify wbuf:
- my $new_size = push(@{$self->{wbuf}}, \&long_step);
-
- # wbuf may be populated by $cb, no need to rearm if so:
- $self->requeue if $new_size == 1;
+ # control passed to ibx_async_cat if $more == \undef
+ $self->requeue_once if !ref($more);
} else { # all done!
delete $self->{long_cb};
- $self->write(\".\r\n");
+ $self->write(\".\r\n"); # TODO get rid of this
my $elapsed = now() - $t0;
my $fd = fileno($self->{sock});
out($self, " deferred[$fd] done - %0.6f", $elapsed);
} elsif ($sub =~ /\A:(bytes|lines)\z/) {
hdr_smsg($self, $xhdr, $1, $range);
} else {
- $xhdr ? (r221 . '.') : "503 HDR not permitted on $header";
+ $xhdr ? (r221.".\r\n") : "503 HDR not permitted on $header\r\n";
}
}
sub xrover_i {
my ($self, $beg, $end) = @_;
my $h = over_header_for($self->{ibx}, $$beg, 'references');
- more($self, "$$beg $h") if defined($h);
+ $self->msg_more("$$beg $h\r\n") if defined($h);
$$beg++ < $end;
}
sub cmd_xrover ($;$) {
my ($self, $range) = @_;
- my $ibx = $self->{ibx} 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');
+ $self->msg_more("224 Overview information follows\r\n");
long_response($self, \&xrover_i, @$r);
}
my ($ibx, $n) = mid_lookup($self, $1);
defined $n or return r430;
my $smsg = $ibx->over(1)->get_art($n) or return r430;
- more($self, '224 Overview information follows (multi-line)');
+ $self->msg_more(
+ "224 Overview information follows (multi-line)\r\n");
# Only set article number column if it's the current group
# (RFC 3977 8.3.2)
$smsg->{-orig_num} = $smsg->{num};
$smsg->{num} = 0;
}
- $self->msg_more(over_line($self, $ibx, $smsg));
- '.';
+ over_line($self, $ibx, $smsg).".\r\n";
} else {
cmd_xover($self, $range);
}
my $r = get_range($self, $range);
return $r unless ref $r;
my ($beg, $end) = @$r;
- more($self, "224 Overview information follows for $$beg to $end");
+ $self->msg_more(
+ "224 Overview information follows for $$beg to $end\r\n");
long_response($self, \&xover_i, @$r);
}
# RFC 4642 2.2.1
return r502 if ($sock->can('accept_SSL') || $self->compressed);
my $opt = $self->{nntpd}->{accept_tls} or
- return '580 can not initiate TLS negotiation';
+ return \"580 can not initiate TLS negotiation\r\n";
$self->write(\"382 Continue with TLS negotiation\r\n");
$self->{sock} = IO::Socket::SSL->start_SSL($sock, %$opt);
$self->requeue if PublicInbox::DS::accept_tls_step($self);
# RFC 8054
sub cmd_compress ($$) {
my ($self, $alg) = @_;
- return '503 Only DEFLATE is supported' if uc($alg) ne 'DEFLATE';
+ return "503 Only DEFLATE is supported\r\n" if uc($alg) ne 'DEFLATE';
return r502 if $self->compressed;
PublicInbox::NNTPdeflate->enable($self);
$self->requeue;
undef
}
-sub zflush {} # overridden by NNTPdeflate
-
sub cmd_xpath ($$) {
my ($self, $mid) = @_;
return r501 unless $mid =~ $ONE_MSGID;
push @paths, "$ibx->{newsgroup}/$n";
}
}
- return '430 no such article on server' unless @paths;
- '223 '.join(' ', sort(@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;
+ return \"430 no such article on server\r\n" unless @paths;
+ '223 '.join(' ', sort(@paths))."\r\n";
}
sub err ($$;@) {