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);
14 my $f = $self->{filename};
15 my $creat = $rw && !-s $f;
16 my $dbh = DBI->connect("dbi:SQLite:dbname=$f",'','', {
21 sqlite_use_immediate_transaction => 1,
23 # no sqlite_unicode, here, all strings are binary
24 create_tables($dbh) if $rw;
25 $dbh->do('PRAGMA journal_mode = WAL') if $creat;
26 $dbh->do('PRAGMA case_sensitive_like = ON');
32 bless { filename => $f, fmap => {} }, $cls;
35 sub lms_commit { delete($_[0]->{dbh})->commit }
37 sub lms_begin { ($_[0]->{dbh} //= dbh_new($_[0], 1))->begin_work };
43 CREATE TABLE IF NOT EXISTS folders (
44 fid INTEGER PRIMARY KEY,
45 loc VARBINARY NOT NULL, /* URL;UIDVALIDITY=$N or $TYPE:/pathname */
50 CREATE TABLE IF NOT EXISTS blob2num (
51 oidbin VARBINARY NOT NULL,
52 fid INTEGER NOT NULL, /* folder ID */
53 uid INTEGER NOT NULL, /* NNTP article number, IMAP UID, MH number */
54 UNIQUE (oidbin, fid, uid)
57 # speeds up LeiImport->ck_update_kw (for "lei import") by 5-6x:
59 CREATE INDEX IF NOT EXISTS idx_fid_uid ON blob2num(fid,uid)
62 CREATE TABLE IF NOT EXISTS blob2name (
63 oidbin VARBINARY NOT NULL,
64 fid INTEGER NOT NULL, /* folder ID */
65 name VARBINARY NOT NULL, /* Maildir basename, JMAP blobId */
66 UNIQUE (oidbin, fid, name)
72 my ($self, $folder, $rw) = @_;
73 my $dbh = $self->{dbh} //= dbh_new($self, $rw);
74 my $sel = 'SELECT fid FROM folders WHERE loc = ? LIMIT 1';
75 my ($fid) = $dbh->selectrow_array($sel, undef, $folder);
76 return $fid if defined $fid;
78 if ($folder =~ s!\A((?:maildir|mh):.*?)/+\z!$1!i) {
79 warn "folder: $folder/ had trailing slash in arg\n";
80 ($fid) = $dbh->selectrow_array($sel, undef, $folder);
82 $dbh->do(<<EOM, undef, $folder, $fid) if $rw;
83 UPDATE folders SET loc = ? WHERE fid = ?
87 # sometimes we stored trailing slash..
88 } elsif ($folder =~ m!\A(?:maildir|mh):!i) {
89 ($fid) = $dbh->selectrow_array($sel, undef, "$folder/");
91 $dbh->do(<<EOM, undef, $folder, $fid) if $rw;
92 UPDATE folders SET loc = ? WHERE fid = ?
96 } elsif ($rw && $folder =~ m!\Aimaps?://!i) {
97 require PublicInbox::URIimap;
98 PublicInbox::URIimap->new($folder)->uidvalidity //
99 Carp::croak("BUG: $folder has no UIDVALIDITY");
103 ($fid) = $dbh->selectrow_array('SELECT MAX(fid) FROM folders');
106 # in case we're reusing, clobber existing stale refs:
107 $dbh->do('DELETE FROM blob2name WHERE fid = ?', undef, $fid);
108 $dbh->do('DELETE FROM blob2num WHERE fid = ?', undef, $fid);
110 my $sth = $dbh->prepare('INSERT INTO folders (fid, loc) VALUES (?, ?)');
111 $sth->execute($fid, $folder);
117 my ($self, $oidhex, $folder, $id) = @_;
118 my $fid = $self->{fmap}->{$folder} //= fid_for($self, $folder, 1);
120 if (ref($id)) { # scalar name
122 $sth = $self->{dbh}->prepare_cached(<<'');
123 INSERT OR IGNORE INTO blob2name (oidbin, fid, name) VALUES (?, ?, ?)
125 } else { # numeric ID (IMAP UID, MH number)
126 $sth = $self->{dbh}->prepare_cached(<<'');
127 INSERT OR IGNORE INTO blob2num (oidbin, fid, uid) VALUES (?, ?, ?)
130 $sth->execute(pack('H*', $oidhex), $fid, $id);
134 my ($self, $folder, $id) = @_;
135 my $fid = $self->{fmap}->{$folder} //= fid_for($self, $folder, 1);
137 if (ref($id)) { # scalar name
139 $sth = $self->{dbh}->prepare_cached(<<'');
140 DELETE FROM blob2name WHERE fid = ? AND name = ?
143 $sth = $self->{dbh}->prepare_cached(<<'');
144 DELETE FROM blob2num WHERE fid = ? AND uid = ?
147 $sth->execute($fid, $id);
152 my ($self, $folder, $oidbin, $id, $newbn) = @_;
153 my $fid = $self->{fmap}->{$folder} //= fid_for($self, $folder, 1);
154 my $sth = $self->{dbh}->prepare_cached(<<'');
155 UPDATE blob2name SET name = ? WHERE fid = ? AND oidbin = ? AND name = ?
157 $sth->execute($newbn, $fid, $oidbin, $$id);
160 # read-only, iterates every oidbin + UID or name for a given folder
162 my ($self, $folder, $cb, @args) = @_;
163 my $dbh = $self->{dbh} //= dbh_new($self);
165 if (ref($folder) eq 'HASH') {
166 $fid = $folder->{fid} // die "BUG: no `fid'";
168 $fid = $self->{fmap}->{$folder} //=
169 fid_for($self, $folder) // return;
171 $sth = $dbh->prepare('SELECT oidbin,uid FROM blob2num WHERE fid = ?');
173 while (my ($oidbin, $id) = $sth->fetchrow_array) {
174 $cb->($oidbin, $id, @args);
176 $sth = $dbh->prepare('SELECT oidbin,name FROM blob2name WHERE fid = ?');
178 while (my ($oidbin, $id) = $sth->fetchrow_array) {
179 $cb->($oidbin, \$id, @args);
184 my ($self, $folder) = @_;
185 my $dbh = $self->{dbh} //= dbh_new($self);
188 $fid = $self->{fmap}->{$folder} //= fid_for($self, $folder) // return;
189 my ($row) = $dbh->selectrow_array(<<"", undef, $fid);
190 SELECT COUNT(name) FROM blob2name WHERE fid = ?
192 $ret->{'name.count'} = $row if $row;
193 for my $op (qw(count min max)) {
194 ($row) = $dbh->selectrow_array(<<"", undef, $fid);
195 SELECT $op(uid) FROM blob2num WHERE fid = ?
198 $ret->{"uid.$op"} = $row;
203 # returns a { location => [ list-of-ids-or-names ] } mapping
205 my ($self, $oidhex) = @_;
206 my ($fid, $sth, $id, %fid2id);
207 my $dbh = $self->{dbh} //= dbh_new($self);
208 $sth = $dbh->prepare('SELECT fid,uid FROM blob2num WHERE oidbin = ?');
209 $sth->execute(pack('H*', $oidhex));
210 while (my ($fid, $uid) = $sth->fetchrow_array) {
211 push @{$fid2id{$fid}}, $uid;
213 $sth = $dbh->prepare('SELECT fid,name FROM blob2name WHERE oidbin = ?');
214 $sth->execute(pack('H*', $oidhex));
215 while (my ($fid, $name) = $sth->fetchrow_array) {
216 push @{$fid2id{$fid}}, $name;
218 $sth = $dbh->prepare('SELECT loc FROM folders WHERE fid = ? LIMIT 1');
220 while (my ($fid, $ids) = each %fid2id) {
222 my ($loc) = $sth->fetchrow_array;
223 unless (defined $loc) {
224 warn "E: fid=$fid for $oidhex unknown:\n", map {
225 'E: '.(ref() ? $$_ : "#$_")."\n";
231 scalar(keys %$ret) ? $ret : undef;
234 # returns a list of folders used for completion
236 my ($self, $pfx) = @_;
237 my $dbh = $self->{dbh} //= dbh_new($self);
238 my $sql = 'SELECT loc FROM folders';
241 $sql .= ' WHERE loc LIKE ? ESCAPE ?';
243 $pfx[0] =~ s/([%_\\])/\\$1/g; # glob chars
246 map { $_->[0] } @{$dbh->selectall_arrayref($sql, undef, @pfx)};
250 my ($self, $oidhex, $vrfy) = @_;
251 my $dbh = $self->{dbh} //= dbh_new($self);
252 my $b2n = $dbh->prepare(<<'');
253 SELECT f.loc,b.name FROM blob2name b
254 LEFT JOIN folders f ON b.fid = f.fid
257 $b2n->execute(pack('H*', $oidhex));
258 while (my ($d, $n) = $b2n->fetchrow_array) {
259 substr($d, 0, length('maildir:')) = '';
260 # n.b. both mbsync and offlineimap use ":2," as a suffix
261 # in "new/", despite (from what I understand of reading
262 # <https://cr.yp.to/proto/maildir.html>), the ":2," only
263 # applies to files in "cur/".
264 my @try = $n =~ /:2,[a-zA-Z]+\z/ ? qw(cur new) : qw(new cur);
267 open my $fh, '<', $f or next;
268 # some (buggy) Maildir writers are non-atomic:
272 if ($vrfy && git_sha(1, \$raw)->hexdigest ne $oidhex) {
273 warn "$f changed $oidhex\n";
283 my ($self, $url, $all) = @_; # $all = [ $lms->folders ];
284 $all //= [ $self->folders ];
285 require PublicInbox::URIimap;
286 my $want = PublicInbox::URIimap->new($url)->canonical;
287 my ($s, $h, $mb) = ($want->scheme, $want->host, $want->mailbox);
288 my @uri = map { PublicInbox::URIimap->new($_)->canonical }
289 grep(m!\A\Q$s\E://.*?\Q$h\E\b.*?/\Q$mb\E\b!, @$all);
292 next if $x->mailbox ne $want->mailbox;
293 next if $x->host ne $want->host;
294 next if $x->port != $want->port;
295 my $x_uidval = $x->uidvalidity;
296 next if ($want->uidvalidity // $x_uidval) != $x_uidval;
298 # allow nothing in want to possibly match ";AUTH=ANONYMOUS"
299 if (defined($x->auth) && !defined($want->auth) &&
300 !defined($want->user)) {
302 # or maybe user was forgotten on CLI:
303 } elsif (defined($x->user) && !defined($want->user)) {
305 } elsif (($x->user//"\0") eq ($want->user//"\0")) {
309 return @match if wantarray;
310 scalar(@match) <= 1 ? $match[0] :
311 "E: `$url' is ambiguous:\n\t".join("\n\t", @match)."\n";
314 # map CLI args to folder table entries, returns undef on failure
316 my ($self, $lei, $folders) = @_;
317 my @all = $self->folders;
318 my %all = map { $_ => 1 } @all;
321 next if $all{$_}; # ok
322 if (m!\A(maildir|mh):(.+)!i) {
324 my $d = "$type:".$lei->abs_path($2);
325 push(@no, $_) unless $all{$d};
327 } elsif (-d "$_/new" && -d "$_/cur") {
328 my $d = 'maildir:'.$lei->abs_path($_);
329 push(@no, $_) unless $all{$d};
331 } elsif (m!\Aimaps?://!i) {
333 my $res = match_imap_url($self, $orig, \@all);
336 push(@{$err->{qerr}}, <<EOM);
337 # using `$res' instead of `$orig'
340 $lei->err($res) if defined $res;
348 my $no = join("\n\t", @no);
349 $err->{fail} = <<EOF;
350 No sync information for: $no
351 Run `lei ls-mail-sync' to display valid choices
358 my ($self, $folder) = @_;
360 $fid = delete($self->{fmap}->{$folder}) //
361 fid_for($self, $folder) // return;
362 my $dbh = $self->{dbh};
363 $dbh->do('DELETE FROM blob2name WHERE fid = ?', undef, $fid);
364 $dbh->do('DELETE FROM blob2num WHERE fid = ?', undef, $fid);
365 $dbh->do('DELETE FROM folders WHERE fid = ?', undef, $fid);
368 sub imap_oidbin ($$$) {
369 my ($self, $url, $uid) = @_; # $url MUST have UIDVALIDITY
370 my $fid = $self->{fmap}->{$url} //= fid_for($self, $url) // return;
371 my $sth = $self->{dbh}->prepare_cached(<<EOM, undef, 1);
372 SELECT oidbin FROM blob2num WHERE fid = ? AND uid = ?
374 $sth->execute($fid, $uid);
375 $sth->fetchrow_array;
379 my ($self, $lei, $uid_uri) = @_;
380 my $mailbox_uri = $uid_uri->clone;
381 $mailbox_uri->uid(undef);
382 my $folders = [ $$mailbox_uri ];
383 if (my $err = $self->arg2folder($lei, $folders)) {
385 $lei->qerr("# no sync information for $mailbox_uri");
388 $lei->qerr(@{$err->{qerr}}) if $err->{qerr};
390 my $oidbin = imap_oidbin($self, $folders->[0], $uid_uri->uid);
391 $oidbin ? unpack('H*', $oidbin) : undef;
394 # FIXME: something with "lei <up|q>" is causing uncommitted transaction
395 # warnings, not sure what...
398 my $dbh = delete($self->{dbh}) or return;
399 return if $dbh->{ReadOnly};
402 warn "BUG $$ $0 $self {dbh} OPEN ppid=".getppid.' '.Carp::longmess();