1 # Copyright (C) 2021 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
4 # for maintaining synchronization between lei/store <=> Maildir|MH|IMAP|JMAP
5 package PublicInbox::LeiMailSync;
9 use PublicInbox::ContentHash qw(git_sha);
13 my $f = $self->{filename};
16 require PublicInbox::Spawn;
17 open my $fh, '+>>', $f or die "failed to open $f: $!";
18 PublicInbox::Spawn::nodatacow_fd(fileno($fh));
21 my $dbh = DBI->connect("dbi:SQLite:dbname=$f",'','', {
26 sqlite_use_immediate_transaction => 1,
28 # no sqlite_unicode, here, all strings are binary
29 create_tables($dbh) if $rw;
30 $dbh->do('PRAGMA journal_mode = WAL') if $creat;
31 $dbh->do('PRAGMA case_sensitive_like = ON');
37 bless { filename => $f, fmap => {} }, $cls;
40 sub lms_commit { delete($_[0]->{dbh})->commit }
42 sub lms_begin { ($_[0]->{dbh} //= dbh_new($_[0], 1))->begin_work };
48 CREATE TABLE IF NOT EXISTS folders (
49 fid INTEGER PRIMARY KEY,
50 loc VARBINARY NOT NULL, /* URL;UIDVALIDITY=$N or $TYPE:/pathname */
55 CREATE TABLE IF NOT EXISTS blob2num (
56 oidbin VARBINARY NOT NULL,
57 fid INTEGER NOT NULL, /* folder ID */
58 uid INTEGER NOT NULL, /* NNTP article number, IMAP UID, MH number */
59 UNIQUE (oidbin, fid, uid)
63 CREATE TABLE IF NOT EXISTS blob2name (
64 oidbin VARBINARY NOT NULL,
65 fid INTEGER NOT NULL, /* folder ID */
66 name VARBINARY NOT NULL, /* Maildir basename, JMAP blobId */
67 UNIQUE (oidbin, fid, name)
73 my ($self, $folder, $rw) = @_;
74 my $dbh = $self->{dbh};
75 my ($row) = $dbh->selectrow_array(<<'', undef, $folder);
76 SELECT fid FROM folders WHERE loc = ? LIMIT 1
78 return $row if defined $row;
81 ($row) = $dbh->selectrow_array('SELECT MAX(fid) FROM folders');
83 my $fid = ($row // 0) + 1;
84 # in case we're reusing, clobber existing stale refs:
85 $dbh->do('DELETE FROM blob2name WHERE fid = ?', undef, $fid);
86 $dbh->do('DELETE FROM blob2num WHERE fid = ?', undef, $fid);
88 my $sth = $dbh->prepare('INSERT INTO folders (fid, loc) VALUES (?, ?)');
89 $sth->execute($fid, $folder);
95 my ($self, $oidhex, $folder, $id) = @_;
96 my $fid = $self->{fmap}->{$folder} //= _fid_for($self, $folder, 1);
98 if (ref($id)) { # scalar name
100 $sth = $self->{dbh}->prepare_cached(<<'');
101 INSERT OR IGNORE INTO blob2name (oidbin, fid, name) VALUES (?, ?, ?)
103 } else { # numeric ID (IMAP UID, MH number)
104 $sth = $self->{dbh}->prepare_cached(<<'');
105 INSERT OR IGNORE INTO blob2num (oidbin, fid, uid) VALUES (?, ?, ?)
108 $sth->execute(pack('H*', $oidhex), $fid, $id);
112 my ($self, $folder, $id) = @_;
113 my $fid = $self->{fmap}->{$folder} //= _fid_for($self, $folder, 1);
115 if (ref($id)) { # scalar name
117 $sth = $self->{dbh}->prepare_cached(<<'');
118 DELETE FROM blob2name WHERE fid = ? AND name = ?
121 $sth = $self->{dbh}->prepare_cached(<<'');
122 DELETE FROM blob2num WHERE fid = ? AND uid = ?
125 $sth->execute($fid, $id);
128 # read-only, iterates every oidbin + UID or name for a given folder
130 my ($self, $folder, $cb, @args) = @_;
131 my $dbh = $self->{dbh} //= dbh_new($self);
133 $fid = $self->{fmap}->{$folder} //= _fid_for($self, $folder) // return;
134 $sth = $dbh->prepare('SELECT oidbin,uid FROM blob2num WHERE fid = ?');
136 while (my ($oidbin, $id) = $sth->fetchrow_array) {
137 $cb->($oidbin, $id, @args);
139 $sth = $dbh->prepare('SELECT oidbin,name FROM blob2name WHERE fid = ?');
141 while (my ($oidbin, $id) = $sth->fetchrow_array) {
142 $cb->($oidbin, \$id, @args);
147 my ($self, $folder) = @_;
148 my $dbh = $self->{dbh} //= dbh_new($self);
151 $fid = $self->{fmap}->{$folder} //= _fid_for($self, $folder) // return;
152 my ($row) = $dbh->selectrow_array(<<"", undef, $fid);
153 SELECT COUNT(name) FROM blob2name WHERE fid = ?
155 $ret->{'name.count'} = $row if $row;
156 for my $op (qw(count min max)) {
157 ($row) = $dbh->selectrow_array(<<"", undef, $fid);
158 SELECT $op(uid) FROM blob2num WHERE fid = ?
161 $ret->{"uid.$op"} = $row;
166 # returns a { location => [ list-of-ids-or-names ] } mapping
168 my ($self, $oidhex) = @_;
169 my ($fid, $sth, $id, %fid2id);
170 my $dbh = $self->{dbh} //= dbh_new($self);
171 $sth = $dbh->prepare('SELECT fid,uid FROM blob2num WHERE oidbin = ?');
172 $sth->execute(pack('H*', $oidhex));
173 while (my ($fid, $uid) = $sth->fetchrow_array) {
174 push @{$fid2id{$fid}}, $uid;
176 $sth = $dbh->prepare('SELECT fid,name FROM blob2name WHERE oidbin = ?');
177 $sth->execute(pack('H*', $oidhex));
178 while (my ($fid, $name) = $sth->fetchrow_array) {
179 push @{$fid2id{$fid}}, $name;
181 $sth = $dbh->prepare('SELECT loc FROM folders WHERE fid = ? LIMIT 1');
183 while (my ($fid, $ids) = each %fid2id) {
185 my ($loc) = $sth->fetchrow_array;
186 unless (defined $loc) {
187 warn "E: fid=$fid for $oidhex unknown:\n", map {
188 'E: '.(ref() ? $$_ : "#$_")."\n";
194 scalar(keys %$ret) ? $ret : undef;
197 # returns a list of folders used for completion
199 my ($self, $pfx) = @_;
200 my $dbh = $self->{dbh} //= dbh_new($self);
201 my $sql = 'SELECT loc FROM folders';
204 $sql .= ' WHERE loc LIKE ? ESCAPE ?';
206 $pfx[0] =~ s/([%_\\])/\\$1/g; # glob chars
209 map { $_->[0] } @{$dbh->selectall_arrayref($sql, undef, @pfx)};
213 my ($self, $oidhex, $vrfy) = @_;
214 my $dbh = $self->{dbh} //= dbh_new($self);
215 my $b2n = $dbh->prepare(<<'');
216 SELECT f.loc,b.name FROM blob2name b
217 LEFT JOIN folders f ON b.fid = f.fid
220 $b2n->execute(pack('H*', $oidhex));
221 while (my ($d, $n) = $b2n->fetchrow_array) {
222 substr($d, 0, length('maildir:')) = '';
223 my $f = "$d/" . ($n =~ /:2,[a-zA-Z]*\z/ ? "cur/$n" : "new/$n");
224 open my $fh, '<', $f or next;
228 if ($vrfy && git_sha(1, \$raw)->hexdigest ne $oidhex) {
229 warn "$f changed $oidhex\n";