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| | # Copyright (C) 2015-2020 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
#
# A small/skeleton/slim representation of a message.
# This used to be "SearchMsg", but we split out overview
# indexing into over.sqlite3 so it's not just "search". There
# may be many of these objects loaded in memory at once for
# large threads in our WWW UI and the NNTP range responses.
package PublicInbox::Smsg;
use strict;
use warnings;
use base qw(Exporter);
our @EXPORT_OK = qw(subject_normalized);
use PublicInbox::MID qw(mids);
use PublicInbox::Address;
use PublicInbox::MsgTime qw(msg_timestamp msg_datestamp);
use Time::Local qw(timegm);
sub get_val ($$) {
my ($doc, $col) = @_;
# sortable_unserialise is defined by PublicInbox::Search::load_xapian()
sortable_unserialise($doc->get_value($col));
}
sub to_doc_data {
my ($self) = @_;
join("\n",
$self->{subject},
$self->{from},
$self->{references} // '',
$self->{to},
$self->{cc},
$self->{blob},
$self->{mid},
$self->{bytes} // '',
$self->{lines} // ''
);
}
sub load_from_data ($$) {
my ($self) = $_[0]; # data = $_[1]
utf8::decode($_[1]);
(
$self->{subject},
$self->{from},
$self->{references},
# To: and Cc: are stored to optimize HDR/XHDR in NNTP since
# some NNTP clients will use that for message displays.
# NNTP only, and only stored in Over(view), not Xapian
$self->{to},
$self->{cc},
$self->{blob},
$self->{mid},
# NNTP only
$self->{bytes},
$self->{lines}
) = split(/\n/, $_[1]);
}
sub load_expand {
my ($self, $doc) = @_;
my $data = $doc->get_data or return;
$self->{ts} = get_val($doc, PublicInbox::Search::TS());
my $dt = get_val($doc, PublicInbox::Search::DT());
my ($yyyy, $mon, $dd, $hh, $mm, $ss) = unpack('A4A2A2A2A2A2', $dt);
$self->{ds} = timegm($ss, $mm, $hh, $dd, $mon - 1, $yyyy);
load_from_data($self, $data);
$self;
}
sub psgi_cull ($) {
my ($self) = @_;
# ghosts don't have ->{from}
my $from = delete($self->{from}) // '';
my @n = PublicInbox::Address::names($from);
$self->{from_name} = join(', ', @n);
# drop NNTP-only fields which aren't relevant to PSGI results:
# saves ~80K on a 200 item search result:
# TODO: we may need to keep some of these for JMAP...
delete @$self{qw(tid to cc bytes lines)};
$self;
}
# for Import and v1 non-SQLite WWW code paths
sub populate {
my ($self, $hdr, $sync) = @_;
for my $f (qw(From To Cc Subject)) {
my @all = $hdr->header($f);
my $val = join(', ', @all);
$val =~ tr/\r//d;
# MIME decoding can create NULs, replace them with spaces
# to protect git and NNTP clients
$val =~ tr/\0\t\n/ /;
# rare: in case headers have wide chars (not RFC2047-encoded)
utf8::decode($val);
# lower-case fields for read-only stuff
$self->{lc($f)} = $val;
# Capitalized From/Subject for git-fast-import
next if $f eq 'To' || $f eq 'Cc';
if (scalar(@all) > 1) {
$val = $all[0];
$val =~ tr/\r//d;
$val =~ tr/\0\t\n/ /;
}
$self->{$f} = $val if $val ne '';
}
$sync //= {};
$self->{-ds} = [ my @ds = msg_datestamp($hdr, $sync->{autime}) ];
$self->{-ts} = [ my @ts = msg_timestamp($hdr, $sync->{cotime}) ];
$self->{ds} //= $ds[0]; # no zone
$self->{ts} //= $ts[0];
# for v1 users w/o SQLite
$self->{mid} //= eval { mids($hdr)->[0] } // '';
}
# no strftime, that is locale-dependent and not for RFC822
my @DoW = qw(Sun Mon Tue Wed Thu Fri Sat);
my @MoY = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
sub date ($) { # for NNTP
my ($self) = @_;
my $ds = $self->{ds};
return unless defined $ds;
my ($sec, $min, $hour, $mday, $mon, $year, $wday) = gmtime($ds);
"$DoW[$wday], " . sprintf("%02d $MoY[$mon] %04d %02d:%02d:%02d +0000",
$mday, $year+1900, $hour, $min, $sec);
}
sub internaldate { # for IMAP
my ($self) = @_;
my ($sec, $min, $hour, $mday, $mon, $year) = gmtime($self->{ts} // 0);
sprintf("%02d-$MoY[$mon]-%04d %02d:%02d:%02d +0000",
$mday, $year+1900, $hour, $min, $sec);
}
our $REPLY_RE = qr/^re:\s+/i;
sub subject_normalized ($) {
my ($subj) = @_;
$subj =~ s/\A\s+//s; # no leading space
$subj =~ s/\s+\z//s; # no trailing space
$subj =~ s/\s+/ /gs; # no redundant spaces
$subj =~ s/\.+\z//; # no trailing '.'
$subj =~ s/$REPLY_RE//igo; # remove reply prefix
$subj;
}
1;
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