diff options
Diffstat (limited to 'lib/PublicInbox/LeiSearch.pm')
| -rw-r--r-- | lib/PublicInbox/LeiSearch.pm | 186 |
1 files changed, 173 insertions, 13 deletions
diff --git a/lib/PublicInbox/LeiSearch.pm b/lib/PublicInbox/LeiSearch.pm index 440bacf5..684668c5 100644 --- a/lib/PublicInbox/LeiSearch.pm +++ b/lib/PublicInbox/LeiSearch.pm @@ -1,27 +1,187 @@ -# Copyright (C) 2020-2021 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> +# read-only counterpart for PublicInbox::LeiStore package PublicInbox::LeiSearch; use strict; use v5.10.1; -use parent qw(PublicInbox::ExtSearch); +use parent qw(PublicInbox::ExtSearch); # PublicInbox::Search->reopen use PublicInbox::Search qw(xap_terms); +use PublicInbox::ContentHash qw(content_digest content_hash git_sha); +use PublicInbox::MID qw(mids mids_for_index); +use PublicInbox::Compat qw(uniqstr); +use Carp qw(croak); -# get combined docid from over.num: -# (not generic Xapian, only works with our sharding scheme) -sub num2docid ($$) { +sub _msg_kw { # retry_reopen callback my ($self, $num) = @_; - my $nshard = $self->{nshard}; - ($num - 1) * $nshard + $num % $nshard + 1; + my $xdb = $self->xdb; # set {nshard} for num2docid; + xap_terms('K', $xdb, $self->num2docid($num)); } -sub msg_keywords { - my ($self, $num) = @_; # num_or_mitem +sub msg_keywords { # array or hashref + my ($self, $num) = @_; + $self->retry_reopen(\&_msg_kw, $num); +} + +sub _oid_kw { # retry_reopen callback + my ($self, $nums) = @_; my $xdb = $self->xdb; # set {nshard}; - my $docid = ref($num) ? $num->get_docid : num2docid($self, $num); - my $kw = xap_terms('K', $xdb, $docid); - warn "E: #$docid ($num): $@\n" if $@; - wantarray ? sort(keys(%$kw)) : $kw; + my %kw; + for my $num (@$nums) { # there should only be one... + my $doc = $xdb->get_document($self->num2docid($num)); + my $x = xap_terms('K', $doc); + %kw = (%kw, %$x); + } + \%kw; +} + +# returns undef if blob is unknown +sub oidbin_keywords { + my ($self, $oidbin) = @_; + my @num = $self->over->oidbin_exists($oidbin) or return; + $self->retry_reopen(\&_oid_kw, \@num); +} + +sub _xsmsg_vmd { # retry_reopen + my ($self, $smsg, $want_label) = @_; + my $xdb = $self->xdb; # set {nshard}; + my (@kw, @L, $doc, $x); + @kw = qw(flagged) if delete($smsg->{lei_q_tt_flagged}); + my @num = $self->over->blob_exists($smsg->{blob}); + for my $num (@num) { # there should only be one... + $doc = $xdb->get_document($self->num2docid($num)); + push @kw, xap_terms('K', $doc); + push @L, xap_terms('L', $doc) if $want_label # JSON/JMAP only + } + @{$smsg->{kw}} = sort(uniqstr(@kw)) if @kw; + @{$smsg->{L}} = uniqstr(@L) if @L; +} + +# lookup keywords+labels for external messages +sub xsmsg_vmd { + my ($self, $smsg, $want_label) = @_; + return if $smsg->{kw}; # already set by LeiXSearch->mitem_kw + eval { $self->retry_reopen(\&_xsmsg_vmd, $smsg, $want_label) }; + warn "$$ $0 (nshard=$self->{nshard}) $smsg->{blob}: $@" if $@; +} + +# when a message has no Message-IDs at all, this is needed for +# unsent Draft messages, at least +sub content_key ($) { + my ($eml) = @_; + my $dig = content_digest($eml); + my $chash = $dig->clone->digest; + my $mids = mids_for_index($eml); + unless (@$mids) { + $eml->{-lei_fake_mid} = $mids->[0] = + PublicInbox::Import::digest2mid($dig, $eml, 0); + } + ($chash, $mids); +} + +sub _cmp_1st { # git->cat_async callback + my ($bref, $oid, $type, $size, $cmp) = @_; + # cmp: [chash, xoids, smsg, lms] + $bref //= $cmp->[3] ? $cmp->[3]->local_blob($oid, 1) : undef; + if ($bref && content_hash(PublicInbox::Eml->new($bref)) eq $cmp->[0]) { + $cmp->[1]->{$oid} = $cmp->[2]->{num}; + } +} + +# returns { OID => num } mapping for $eml matches +# The `num' hash value only makes sense from LeiSearch itself +# and is nonsense from the PublicInbox::LeiALE subclass +sub xoids_for { + my ($self, $eml, $min) = @_; + my ($chash, $mids) = content_key($eml); + my @overs = ($self->over // $self->overs_all); + my $git = $self->git; + my $xoids = {}; + # no lms when used via {ale}: + my $lms = $self->{-lms_rw} //= lms($self) if defined($self->{topdir}); + for my $mid (@$mids) { + for my $o (@overs) { + my ($id, $prev); + while (my $cur = $o->next_by_mid($mid, \$id, \$prev)) { + # {bytes} may be '' from old bug + $cur->{bytes} = 1 if $cur->{bytes} eq ''; + next if $cur->{bytes} == 0 || + $xoids->{$cur->{blob}}; + $git->cat_async($cur->{blob}, \&_cmp_1st, + [$chash, $xoids, $cur, $lms]); + if ($min && scalar(keys %$xoids) >= $min) { + $git->async_wait_all; + return $xoids; + } + } + } + } + $git->async_wait_all; + + # it could be an 'lei index'-ed file that just got renamed + if (scalar(keys %$xoids) < ($min // 1) && defined($self->{topdir})) { + my $hex = git_sha(1, $eml)->hexdigest; + my @n = $overs[0]->blob_exists($hex); + for (@n) { $xoids->{$hex} //= $_ } + } + scalar(keys %$xoids) ? $xoids : undef; +} + +# returns true if $eml is indexed by lei/store and keywords don't match +sub kw_changed { + my ($self, $eml, $new_kw_sorted, $docids) = @_; + my $cur_kw; + if ($eml) { + my $xoids = xoids_for($self, $eml) // return; + $docids //= []; + @$docids = sort { $a <=> $b } values %$xoids; + if (!@$docids && $self->over) { + my $bin = git_sha(1, $eml)->digest; + @$docids = $self->over->oidbin_exists($bin); + } + } + for my $id (@$docids) { + $cur_kw = eval { msg_keywords($self, $id) } and last; + } + if (!defined($cur_kw) && $@) { + $docids = join(', num:', @$docids); + croak "E: num:$docids keyword lookup failure: $@"; + } + # RFC 5550 sec 5.9 on the $Forwarded keyword states: + # "Once set, the flag SHOULD NOT be cleared" + if (exists($cur_kw->{forwarded}) && + !grep(/\Aforwarded\z/, @$new_kw_sorted)) { + delete $cur_kw->{forwarded}; + } + $cur_kw = join("\0", sort keys %$cur_kw); + join("\0", @$new_kw_sorted) eq $cur_kw ? 0 : 1; +} + +sub qparse_new { + my ($self) = @_; + my $qp = $self->SUPER::qparse_new; # PublicInbox::Search + $self->{qp_flags} |= PublicInbox::Search::FLAG_PHRASE() | + PublicInbox::Search::FLAG_PURE_NOT(); + $qp->add_boolean_prefix('kw', 'K'); + $qp->add_boolean_prefix('L', 'L'); + $qp +} + +sub lms { + my ($self) = @_; + require PublicInbox::LeiMailSync; + my $f = "$self->{topdir}/mail_sync.sqlite3"; + -f $f ? PublicInbox::LeiMailSync->new($f) : undef; +} + +# allow SolverGit->resolve_patch to work with "lei index" +sub smsg_eml { + my ($self, $smsg) = @_; + PublicInbox::Inbox::smsg_eml($self, $smsg) // do { + my $lms = lms($self); + my $bref = $lms ? $lms->local_blob($smsg->{blob}, 1) : undef; + $bref ? PublicInbox::Eml->new($bref) : undef; + }; } 1; |