package PublicInbox::IMAP;
use strict;
use base qw(PublicInbox::DS);
-use fields qw(imapd logged_in ibx long_cb -login_tag);
+use fields qw(imapd logged_in ibx long_cb -login_tag
+ -idle_tag -idle_max);
use PublicInbox::Eml;
use PublicInbox::DS qw(now);
use PublicInbox::Syscall qw(EPOLLIN EPOLLONESHOT);
sub capa ($) {
my ($self) = @_;
- my $capa = 'CAPABILITY IMAP4rev1';
+
+ # dovecot advertises IDLE pre-login; perhaps because some clients
+ # depend on it, so we'll do the same
+ my $capa = 'CAPABILITY IMAP4rev1 IDLE';
if ($self->{logged_in}) {
$capa .= ' COMPRESS=DEFLATE';
} else {
sub cmd_noop ($$) { "$_[1] OK NOOP completed\r\n" }
+# called by PublicInbox::InboxIdle
+sub on_inbox_unlock {
+ my ($self, $ibx) = @_;
+ my $new = ($ibx->mm->minmax)[1];
+ defined(my $old = $self->{-idle_max}) or die 'BUG: -idle_max unset';
+ if ($new > $old) {
+ $self->{-idle_max} = $new;
+ $self->msg_more("* $_ EXISTS\r\n") for (($old + 1)..($new - 1));
+ $self->write(\"* $new EXISTS\r\n");
+ }
+}
+
+sub cmd_idle ($$) {
+ my ($self, $tag) = @_;
+ # IDLE seems allowed by dovecot w/o a mailbox selected *shrug*
+ my $ibx = $self->{ibx} or return "$tag BAD no mailbox selected\r\n";
+ $ibx->subscribe_unlock(fileno($self->{sock}), $self);
+ $self->{-idle_tag} = $tag;
+ $self->{-idle_max} = ($ibx->mm->minmax)[1] // 0;
+ "+ idling\r\n"
+}
+
+sub cmd_done ($$) {
+ my ($self, $tag) = @_; # $tag is "DONE" (case-insensitive)
+ defined(my $idle_tag = delete $self->{-idle_tag}) or
+ return "$tag BAD not idle\r\n";
+ my $ibx = $self->{ibx} or do {
+ warn "BUG: idle_tag set w/o inbox";
+ return "$tag BAD internal bug\r\n";
+ };
+ $ibx->unsubscribe_unlock(fileno($self->{sock}));
+ "$idle_tag OK Idle completed\r\n";
+}
+
sub cmd_examine ($$$) {
my ($self, $tag, $mailbox) = @_;
my $ibx = $self->{imapd}->{groups}->{$mailbox} or
}
my $res = eval {
if (my $cmd = $self->can('cmd_'.lc($req // ''))) {
- $cmd->($self, $tag, @args);
+ defined($self->{-idle_tag}) ?
+ "$self->{-idle_tag} BAD expected DONE\r\n" :
+ $cmd->($self, $tag, @args);
+ } elsif (uc($tag // '') eq 'DONE' && !defined($req)) {
+ cmd_done($self, $tag);
} else { # this is weird
auth_challenge_ok($self) //
"$tag BAD Error in IMAP command $req: ".
($self->{rbuf} || $self->{wbuf} || $self->not_idle_long($now));
}
+sub close {
+ my ($self) = @_;
+ if (my $ibx = delete $self->{ibx}) {
+ if (my $sock = $self->{sock}) {;
+ $ibx->unsubscribe_unlock(fileno($sock));
+ }
+ }
+ $self->SUPER::close; # PublicInbox::DS::close
+}
+
# we're read-only, so SELECT and EXAMINE do the same thing
no warnings 'once';
*cmd_select = \&cmd_examine;