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 $sel = 'SELECT fid FROM folders WHERE loc = ? LIMIT 1';
76 my ($fid) = $dbh->selectrow_array($sel, undef, $folder);
77 return $fid if defined $fid;
79 if ($folder =~ s!\A((?:maildir|mh):.*?)/+\z!$1!i) {
80 warn "folder: $folder/ had trailing slash in arg\n";
81 ($fid) = $dbh->selectrow_array($sel, undef, $folder);
83 $dbh->do(<<EOM, undef, $folder, $fid) if $rw;
84 UPDATE folders SET loc = ? WHERE fid = ?
88 # sometimes we stored trailing slash..
89 } elsif ($folder =~ m!\A(?:maildir|mh):!i) {
90 ($fid) = $dbh->selectrow_array($sel, undef, "$folder/");
92 $dbh->do(<<EOM, undef, $folder, $fid) if $rw;
93 UPDATE folders SET loc = ? WHERE fid = ?
100 ($fid) = $dbh->selectrow_array('SELECT MAX(fid) FROM folders');
103 # in case we're reusing, clobber existing stale refs:
104 $dbh->do('DELETE FROM blob2name WHERE fid = ?', undef, $fid);
105 $dbh->do('DELETE FROM blob2num WHERE fid = ?', undef, $fid);
107 my $sth = $dbh->prepare('INSERT INTO folders (fid, loc) VALUES (?, ?)');
108 $sth->execute($fid, $folder);
114 my ($self, $oidhex, $folder, $id) = @_;
115 my $fid = $self->{fmap}->{$folder} //= _fid_for($self, $folder, 1);
117 if (ref($id)) { # scalar name
119 $sth = $self->{dbh}->prepare_cached(<<'');
120 INSERT OR IGNORE INTO blob2name (oidbin, fid, name) VALUES (?, ?, ?)
122 } else { # numeric ID (IMAP UID, MH number)
123 $sth = $self->{dbh}->prepare_cached(<<'');
124 INSERT OR IGNORE INTO blob2num (oidbin, fid, uid) VALUES (?, ?, ?)
127 $sth->execute(pack('H*', $oidhex), $fid, $id);
131 my ($self, $folder, $id) = @_;
132 my $fid = $self->{fmap}->{$folder} //= _fid_for($self, $folder, 1);
134 if (ref($id)) { # scalar name
136 $sth = $self->{dbh}->prepare_cached(<<'');
137 DELETE FROM blob2name WHERE fid = ? AND name = ?
140 $sth = $self->{dbh}->prepare_cached(<<'');
141 DELETE FROM blob2num WHERE fid = ? AND uid = ?
144 $sth->execute($fid, $id);
147 # read-only, iterates every oidbin + UID or name for a given folder
149 my ($self, $folder, $cb, @args) = @_;
150 my $dbh = $self->{dbh} //= dbh_new($self);
152 $fid = $self->{fmap}->{$folder} //= _fid_for($self, $folder) // return;
153 $sth = $dbh->prepare('SELECT oidbin,uid FROM blob2num WHERE fid = ?');
155 while (my ($oidbin, $id) = $sth->fetchrow_array) {
156 $cb->($oidbin, $id, @args);
158 $sth = $dbh->prepare('SELECT oidbin,name FROM blob2name WHERE fid = ?');
160 while (my ($oidbin, $id) = $sth->fetchrow_array) {
161 $cb->($oidbin, \$id, @args);
166 my ($self, $folder) = @_;
167 my $dbh = $self->{dbh} //= dbh_new($self);
170 $fid = $self->{fmap}->{$folder} //= _fid_for($self, $folder) // return;
171 my ($row) = $dbh->selectrow_array(<<"", undef, $fid);
172 SELECT COUNT(name) FROM blob2name WHERE fid = ?
174 $ret->{'name.count'} = $row if $row;
175 for my $op (qw(count min max)) {
176 ($row) = $dbh->selectrow_array(<<"", undef, $fid);
177 SELECT $op(uid) FROM blob2num WHERE fid = ?
180 $ret->{"uid.$op"} = $row;
185 # returns a { location => [ list-of-ids-or-names ] } mapping
187 my ($self, $oidhex) = @_;
188 my ($fid, $sth, $id, %fid2id);
189 my $dbh = $self->{dbh} //= dbh_new($self);
190 $sth = $dbh->prepare('SELECT fid,uid FROM blob2num WHERE oidbin = ?');
191 $sth->execute(pack('H*', $oidhex));
192 while (my ($fid, $uid) = $sth->fetchrow_array) {
193 push @{$fid2id{$fid}}, $uid;
195 $sth = $dbh->prepare('SELECT fid,name FROM blob2name WHERE oidbin = ?');
196 $sth->execute(pack('H*', $oidhex));
197 while (my ($fid, $name) = $sth->fetchrow_array) {
198 push @{$fid2id{$fid}}, $name;
200 $sth = $dbh->prepare('SELECT loc FROM folders WHERE fid = ? LIMIT 1');
202 while (my ($fid, $ids) = each %fid2id) {
204 my ($loc) = $sth->fetchrow_array;
205 unless (defined $loc) {
206 warn "E: fid=$fid for $oidhex unknown:\n", map {
207 'E: '.(ref() ? $$_ : "#$_")."\n";
213 scalar(keys %$ret) ? $ret : undef;
216 # returns a list of folders used for completion
218 my ($self, $pfx) = @_;
219 my $dbh = $self->{dbh} //= dbh_new($self);
220 my $sql = 'SELECT loc FROM folders';
223 $sql .= ' WHERE loc LIKE ? ESCAPE ?';
225 $pfx[0] =~ s/([%_\\])/\\$1/g; # glob chars
228 map { $_->[0] } @{$dbh->selectall_arrayref($sql, undef, @pfx)};
232 my ($self, $oidhex, $vrfy) = @_;
233 my $dbh = $self->{dbh} //= dbh_new($self);
234 my $b2n = $dbh->prepare(<<'');
235 SELECT f.loc,b.name FROM blob2name b
236 LEFT JOIN folders f ON b.fid = f.fid
239 $b2n->execute(pack('H*', $oidhex));
240 while (my ($d, $n) = $b2n->fetchrow_array) {
241 substr($d, 0, length('maildir:')) = '';
242 my $f = "$d/" . ($n =~ /:2,[a-zA-Z]*\z/ ? "cur/$n" : "new/$n");
243 open my $fh, '<', $f or next;
247 if ($vrfy && git_sha(1, \$raw)->hexdigest ne $oidhex) {
248 warn "$f changed $oidhex\n";