diff options
Diffstat (limited to 'lib/PublicInbox/NNTP.pm')
| -rw-r--r-- | lib/PublicInbox/NNTP.pm | 192 |
1 files changed, 93 insertions, 99 deletions
diff --git a/lib/PublicInbox/NNTP.pm b/lib/PublicInbox/NNTP.pm index c574c9e6..cdbd8e98 100644 --- a/lib/PublicInbox/NNTP.pm +++ b/lib/PublicInbox/NNTP.pm @@ -34,7 +34,6 @@ my $LIST_HEADERS = join("\r\n", @OVERVIEW, qw(:bytes :lines Xref To Cc)) . "\r\n"; # disable commands with easy DoS potential: -# LISTGROUP could get pretty bad, too... my %DISABLED; # = map { $_ => 1 } qw(xover list_overview_fmt newnews xhdr); my $EXPMAP; # fd -> [ idle_time, $self ] @@ -226,15 +225,12 @@ sub cmd_listgroup ($;$) { } $self->{ng} or return '412 no newsgroup selected'; - long_response($self, 0, long_response_limit, sub { - my ($i) = @_; - my $nr = $self->{ng}->mm->id_batch($$i, sub { - my ($ary) = @_; - more($self, join("\r\n", @$ary)); - }); - - # -1 to adjust for implicit increment in long_response - $$i = $nr ? $$i + $nr - 1 : long_response_limit; + my $n = 0; + long_response($self, sub { + my $ary = $self->{ng}->mm->ids_after(\$n); + scalar @$ary or return; + more($self, join("\r\n", @$ary)); + 1; }); } @@ -332,24 +328,22 @@ sub cmd_newnews ($$$$;$$) { }; return '.' unless @srch; - $ts .= '..'; - my $opts = { asc => 1, limit => 1000, offset => 0 }; - long_response($self, 0, long_response_limit, sub { - my ($i) = @_; + my $prev = 0; + long_response($self, sub { my $srch = $srch[0]; - my $res = $srch->query_ts($ts, $opts); - my $msgs = $res->{msgs}; - if (my $nr = scalar @$msgs) { + my $msgs = $srch->query_ts($ts, $prev); + if (scalar @$msgs) { more($self, '<' . join(">\r\n<", map { $_->mid } @$msgs ). '>'); - $opts->{offset} += $nr; + $prev = $msgs->[-1]->{num}; } else { shift @srch; if (@srch) { # continue onto next newsgroup - $opts->{offset} = 0; + $prev = 0; + return 1; } else { # break out of the long response. - $$i = long_response_limit; + return; } } }); @@ -414,12 +408,30 @@ sub header_append ($$$) { $hdr->header_set($k, @v, $v); } -sub set_nntp_headers { - my ($hdr, $ng, $n, $mid) = @_; +sub xref ($$$$) { + my ($self, $ng, $n, $mid) = @_; + my $ret = "$ng->{domain} $ng->{newsgroup}:$n"; + + # num_for is pretty cheap and sometimes we'll lookup the existence + # of an article without getting even the OVER info. In other words, + # I'm not sure if its worth optimizing by scanning To:/Cc: and + # PublicInbox::ExtMsg on the PSGI end is just as expensive + foreach my $other (@{$self->{nntpd}->{grouplist}}) { + next if $ng eq $other; + my $num = eval { $other->mm->num_for($mid) } or next; + $ret .= " $other->{newsgroup}:$num"; + } + $ret; +} + +sub set_nntp_headers ($$$$$) { + my ($self, $hdr, $ng, $n, $mid) = @_; # clobber some - $hdr->header_set('Newsgroups', $ng->{newsgroup}); - $hdr->header_set('Xref', xref($ng, $n)); + my $xref = xref($self, $ng, $n, $mid); + $hdr->header_set('Xref', $xref); + $xref =~ s/:\d+//g; + $hdr->header_set('Newsgroups', (split(/ /, $xref, 2))[1]); header_append($hdr, 'List-Post', "<mailto:$ng->{-primary_address}>"); if (my $url = $ng->base_url) { $mid = mid_escape($mid); @@ -464,18 +476,16 @@ find_mid: defined $mid or return $err; } found: - my $bytes; - my $s = eval { $ng->msg_by_mid($mid, \$bytes) } or return $err; - $s = Email::Simple->new($s); - my $lines; + my $smsg = $ng->search->{over_ro}->get_art($n) or return $err; + my $msg = $ng->msg_by_smsg($smsg) or return $err; + my $s = Email::Simple->new($msg); if ($set_headers) { - set_nntp_headers($s->header_obj, $ng, $n, $mid); - $lines = $s->body =~ tr!\n!\n!; + set_nntp_headers($self, $s->header_obj, $ng, $n, $mid); # must be last $s->body_set('') if ($set_headers == 2); } - [ $n, $mid, $s, $bytes, $lines, $ng ]; + [ $n, $mid, $s, $smsg->bytes, $smsg->lines, $ng ]; } sub simple_body_write ($$) { @@ -573,8 +583,8 @@ sub get_range ($$) { [ $beg, $end ]; } -sub long_response ($$$$) { - my ($self, $beg, $end, $cb) = @_; +sub long_response ($$) { + my ($self, $cb) = @_; die "BUG: nested long response" if $self->{long_res}; my $fd = $self->{fd}; @@ -585,24 +595,14 @@ sub long_response ($$$$) { $self->watch_read(0); my $t0 = now(); $self->{long_res} = sub { - # limit our own running time for fairness with other - # clients and to avoid buffering too much: - my $lim = 100; - - my $err; - do { - eval { $cb->(\$beg, \$lim) }; - } until (($err = $@) || $self->{closed} || - ++$beg > $end || --$lim < 0 || - $self->{write_buf_size}); - - if ($err || $self->{closed}) { + my $more = eval { $cb->() }; + if ($@ || $self->{closed}) { $self->{long_res} = undef; - if ($err) { + if ($@) { err($self, "%s during long response[$fd] - %0.6f", - $err, now() - $t0); + $@, now() - $t0); } if ($self->{closed}) { out($self, " deferred[$fd] aborted - %0.6f", @@ -611,7 +611,7 @@ sub long_response ($$$$) { update_idle_time($self); $self->watch_read(1); } - } elsif ($lim < 0 || $self->{write_buf_size}) { + } elsif ($more) { # $self->{write_buf_size}: # no recursion, schedule another call ASAP # but only after all pending writes are done update_idle_time($self); @@ -643,19 +643,17 @@ sub hdr_message_id ($$$) { # optimize XHDR Message-ID [range] for slrnpull. my $mm = $self->{ng}->mm; my ($beg, $end) = @$r; more($self, $xhdr ? r221 : r225); - long_response($self, $beg, $end, sub { - my ($i) = @_; - my $mid = $mm->mid_for($$i); - more($self, "$$i <$mid>") if defined $mid; + long_response($self, sub { + my $r = $mm->msg_range(\$beg, $end); + @$r or return; + more($self, join("\r\n", map { + "$_->[0] <$_->[1]>" + } @$r)); + 1; }); } } -sub xref ($$) { - my ($ng, $n) = @_; - "$ng->{domain} $ng->{newsgroup}:$n" -} - sub mid_lookup ($$) { my ($self, $mid) = @_; my $self_ng = $self->{ng}; @@ -675,9 +673,11 @@ sub hdr_xref ($$$) { # optimize XHDR Xref [range] for rtin my ($self, $xhdr, $range) = @_; if (defined $range && $range =~ /\A<(.+)>\z/) { # Message-ID - my ($ng, $n) = mid_lookup($self, $1); + my $mid = $1; + my ($ng, $n) = mid_lookup($self, $mid); return r430 unless $n; - hdr_mid_response($self, $xhdr, $ng, $n, $range, xref($ng, $n)); + hdr_mid_response($self, $xhdr, $ng, $n, $range, + xref($self, $ng, $n, $mid)); } else { # numeric range $range = $self->{article} unless defined $range; my $r = get_range($self, $range); @@ -686,26 +686,31 @@ sub hdr_xref ($$$) { # optimize XHDR Xref [range] for rtin my $mm = $ng->mm; my ($beg, $end) = @$r; more($self, $xhdr ? r221 : r225); - long_response($self, $beg, $end, sub { - my ($i) = @_; - my $mid = $mm->mid_for($$i); - more($self, "$$i ".xref($ng, $$i)) if defined $mid; + long_response($self, sub { + my $r = $mm->msg_range(\$beg, $end); + @$r or return; + more($self, join("\r\n", map { + my $num = $_->[0]; + "$num ".xref($self, $ng, $num, $_->[1]); + } @$r)); + 1; }); } } sub search_header_for { - my ($srch, $mid, $field) = @_; - my $smsg = $srch->lookup_mail($mid) or return; - $smsg->$field; + my ($srch, $num, $field) = @_; + my $smsg = $srch->{over_ro}->get_art($num) or return; + return PublicInbox::SearchMsg::date($smsg) if $field eq 'date'; + $smsg->{$field}; } sub hdr_searchmsg ($$$$) { my ($self, $xhdr, $field, $range) = @_; if (defined $range && $range =~ /\A<(.+)>\z/) { # Message-ID my ($ng, $n) = mid_lookup($self, $1); - return r430 unless $n; - my $v = search_header_for($ng->search, $range, $field); + return r430 unless defined $n; + my $v = search_header_for($ng->search, $n, $field); hdr_mid_response($self, $xhdr, $ng, $n, $range, $v); } else { # numeric range $range = $self->{article} unless defined $range; @@ -715,22 +720,17 @@ sub hdr_searchmsg ($$$$) { return $r unless ref $r; my ($beg, $end) = @$r; more($self, $xhdr ? r221 : r225); - my $off = 0; - long_response($self, $beg, $end, sub { - my ($i, $lim) = @_; - my $res = $srch->query_xover($beg, $end, $off); - my $msgs = $res->{msgs}; + my $cur = $beg; + long_response($self, sub { + my $msgs = $srch->query_xover($cur, $end); my $nr = scalar @$msgs or return; - $off += $nr; - $$lim -= $nr; my $tmp = ''; foreach my $s (@$msgs) { - $tmp .= $s->num . ' ' . $s->$field . "\r\n"; + $tmp .= $s->{num} . ' ' . $s->$field . "\r\n"; } utf8::encode($tmp); do_more($self, $tmp); - # -1 to adjust for implicit increment in long_response - $$i = $nr ? $$i + $nr - 1 : long_response_limit; + $cur = $msgs->[-1]->{num} + 1; }); } } @@ -804,11 +804,11 @@ sub cmd_xrover ($;$) { my $mm = $ng->mm; my $srch = $ng->search; more($self, '224 Overview information follows'); - long_response($self, $beg, $end, sub { - my ($i) = @_; - my $mid = $mm->mid_for($$i) or return; - my $h = search_header_for($srch, $mid, 'references'); - more($self, "$$i $h"); + + long_response($self, sub { + my $h = search_header_for($srch, $beg, 'references'); + more($self, "$beg $h") if defined($h); + $beg++ < $end; }); } @@ -820,10 +820,10 @@ sub over_line ($$) { $smsg->{subject}, $smsg->{from}, PublicInbox::SearchMsg::date($smsg), - '<'.PublicInbox::SearchMsg::mid($smsg).'>', + "<$smsg->{mid}>", $smsg->{references}, - PublicInbox::SearchMsg::bytes($smsg), - PublicInbox::SearchMsg::lines($smsg)); + $smsg->{bytes}, + $smsg->{lines}); utf8::encode($s); $s } @@ -832,8 +832,8 @@ sub cmd_over ($;$) { my ($self, $range) = @_; if ($range && $range =~ /\A<(.+)>\z/) { my ($ng, $n) = mid_lookup($self, $1); - my $smsg = $ng->search->lookup_mail($range) or - return '430 No article with that message-id'; + defined $n or return r430; + my $smsg = $ng->search->{over_ro}->get_art($n) or return r430; more($self, '224 Overview information follows (multi-line)'); # Only set article number column if it's the current group @@ -854,22 +854,16 @@ sub cmd_xover ($;$) { my ($beg, $end) = @$r; more($self, "224 Overview information follows for $beg to $end"); my $srch = $self->{ng}->search; - my $off = 0; - long_response($self, $beg, $end, sub { - my ($i, $lim) = @_; - my $res = $srch->query_xover($beg, $end, $off); - my $msgs = $res->{msgs}; + my $cur = $beg; + long_response($self, sub { + my $msgs = $srch->query_xover($cur, $end); my $nr = scalar @$msgs or return; - $off += $nr; - $$lim -= $nr; # OVERVIEW.FMT more($self, join("\r\n", map { - over_line(PublicInbox::SearchMsg::num($_), $_); + over_line($_->{num}, $_); } @$msgs)); - - # -1 to adjust for implicit increment in long_response - $$i = $nr ? $$i + $nr - 1 : long_response_limit; + $cur = $msgs->[-1]->{num} + 1; }); } |