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 # common reader code for IMAP and NNTP (and maybe JMAP)
5 package PublicInbox::NetReader;
8 use parent qw(Exporter PublicInbox::IPC);
10 use PublicInbox::Config;
11 our %IMAPflags2kw = map {; "\\\u$_" => $_ } qw(seen answered flagged draft);
12 $IMAPflags2kw{'$Forwarded'} = 'forwarded'; # RFC 5550
14 our @EXPORT = qw(uri_section imap_uri nntp_uri);
18 Data::Dumper->new(\@_)->Useqq(1)->Terse(1)->Dump;
21 # returns the git config section name, e.g [imap "imaps://user@example.com"]
22 # without the mailbox, so we can share connections between different inboxes
25 $uri->scheme . '://' . $uri->authority;
30 return if ($val // '') eq '';
31 if ($val =~ m!\Asocks5h:// (?: \[ ([^\]]+) \] | ([^:/]+) )
32 (?::([0-9]+))?/*\z!ix) {
33 my ($h, $p) = ($1 // $2, $3 + 0);
34 $h = '127.0.0.1' if $h eq '0';
35 eval { require IO::Socket::Socks } or die <<EOM;
36 IO::Socket::Socks missing for socks5h://$h:$p
38 return { ProxyAddr => $h, ProxyPort => $p };
40 die "$val not understood (only socks5h:// is supported)\n";
44 my ($self, $mic_arg, $sec, $uri) = @_;
46 my $sa = $self->{imap_opt}->{$sec}->{-proxy_cfg} || $self->{-proxy_cli};
49 $opt{ConnectAddr} = delete $mic_arg->{Server};
50 $opt{ConnectPort} = delete $mic_arg->{Port};
51 $socks{Socket} = IO::Socket::Socks->new(%opt) or die
52 "E: <$$uri> ".eval('$IO::Socket::Socks::SOCKS_ERROR');
54 PublicInbox::IMAPClient->new(%$mic_arg, %socks);
57 sub auth_anon_cb { '' }; # for Mail::IMAPClient::Authcallback
59 # mic_for may prompt the user and store auth info, prepares mic_get
60 sub mic_for ($$$$) { # mic = Mail::IMAPClient
61 my ($self, $url, $mic_args, $lei) = @_;
62 require PublicInbox::URIimap;
63 my $uri = PublicInbox::URIimap->new($url);
64 require PublicInbox::GitCredential;
67 protocol => $uri->scheme,
69 username => $uri->user,
70 password => $uri->password,
71 }, 'PublicInbox::GitCredential';
72 my $sec = uri_section($uri);
73 my $common = $mic_args->{$sec} // {};
74 # IMAPClient and Net::Netrc both mishandles `0', so we pass `127.0.0.1'
75 my $host = $cred->{host};
76 $host = '127.0.0.1' if $host eq '0';
80 Ssl => $uri->scheme eq 'imaps',
81 Keepalive => 1, # SO_KEEPALIVE
82 %$common, # may set Starttls, Compress, Debug ....
84 require PublicInbox::IMAPClient;
85 my $mic = mic_new($self, $mic_arg, $sec, $uri) or
86 die "E: <$url> new: $@\n";
87 # default to using STARTTLS if it's available, but allow
88 # it to be disabled since I usually connect to localhost
89 if (!$mic_arg->{Ssl} && !defined($mic_arg->{Starttls}) &&
90 $mic->has_capability('STARTTLS') &&
91 $mic->can('starttls')) {
92 $mic->starttls or die "E: <$url> STARTTLS: $@\n";
95 # do we even need credentials?
96 if (!defined($cred->{username}) &&
97 $mic->has_capability('AUTH=ANONYMOUS')) {
101 $cred->check_netrc unless defined $cred->{password};
102 $cred->fill($lei); # may prompt user here
103 $mic->User($mic_arg->{User} = $cred->{username});
104 $mic->Password($mic_arg->{Password} = $cred->{password});
105 } else { # AUTH=ANONYMOUS
106 $mic->Authmechanism($mic_arg->{Authmechanism} = 'ANONYMOUS');
107 $mic_arg->{Authcallback} = 'auth_anon_cb';
108 $mic->Authcallback(\&auth_anon_cb);
111 if ($mic->login && $mic->IsAuthenticated) {
112 # success! keep IMAPClient->new arg in case we get disconnected
113 $self->{mic_arg}->{$sec} = $mic_arg;
115 $err = "E: <$url> LOGIN: $@\n";
116 if ($cred && defined($cred->{password})) {
117 $err =~ s/\Q$cred->{password}\E/*******/g;
121 $cred->run($mic ? 'approve' : 'reject') if $cred;
123 $lei ? $lei->fail($err) : warn($err);
128 # Net::NNTP doesn't support CAPABILITIES, yet
129 sub try_starttls ($) {
131 return if $host =~ /\.onion\z/s;
132 return if $host =~ /\A127\.[0-9]+\.[0-9]+\.[0-9]+\z/s;
133 return if $host eq '::1';
138 my ($nn_arg, $nntp_opt, $uri) = @_;
140 if (defined $nn_arg->{ProxyAddr}) {
141 require PublicInbox::NetNNTPSocks;
142 eval { $nn = PublicInbox::NetNNTPSocks->new_socks(%$nn_arg) };
143 die "E: <$uri> $@\n" if $@;
145 $nn = Net::NNTP->new(%$nn_arg) or die "E: <$uri> new: $!\n";
148 # default to using STARTTLS if it's available, but allow
149 # it to be disabled for localhost/VPN users
150 if (!$nn_arg->{SSL} && $nn->can('starttls')) {
151 if (!defined($nntp_opt->{starttls}) &&
152 try_starttls($nn_arg->{Host})) {
153 # soft fail by default
154 $nn->starttls or warn <<"";
155 W: <$uri> STARTTLS tried and failed (not requested)
157 } elsif ($nntp_opt->{starttls}) {
158 # hard fail if explicitly configured
159 $nn->starttls or die <<"";
160 E: <$uri> STARTTLS requested and failed
163 } elsif ($nntp_opt->{starttls}) {
164 $nn->can('starttls') or
165 die "E: <$uri> Net::NNTP too old for STARTTLS\n";
166 $nn->starttls or die <<"";
167 E: <$uri> STARTTLS requested and failed
173 sub nn_for ($$$$) { # nn = Net::NNTP
174 my ($self, $uri, $nn_args, $lei) = @_;
175 my $sec = uri_section($uri);
176 my $nntp_opt = $self->{nntp_opt}->{$sec} //= {};
177 my $host = $uri->host;
178 # Net::NNTP and Net::Netrc both mishandle `0', so we pass `127.0.0.1'
179 $host = '127.0.0.1' if $host eq '0';
182 if (defined(my $ui = $uri->userinfo)) {
183 require PublicInbox::GitCredential;
186 protocol => $uri->scheme,
188 }, 'PublicInbox::GitCredential';
189 ($u, $p) = split(/:/, $ui, 2);
190 ($cred->{username}, $cred->{password}) = ($u, $p);
191 $cred->check_netrc unless defined $p;
193 my $common = $nn_args->{$sec} // {};
197 SSL => $uri->secure, # snews == nntps
198 %$common, # may Debug ....
200 my $sa = $self->{-proxy_cli};
201 %$nn_arg = (%$nn_arg, %$sa) if $sa;
202 my $nn = nn_new($nn_arg, $nntp_opt, $uri);
204 $cred->fill($lei); # may prompt user here
205 if ($nn->authinfo($u, $p)) {
206 push @{$nntp_opt->{-postconn}}, [ 'authinfo', $u, $p ];
208 warn "E: <$uri> AUTHINFO $u XXXX failed\n";
213 if ($nntp_opt->{compress}) {
214 # https://rt.cpan.org/Ticket/Display.html?id=129967
215 if ($nn->can('compress')) {
217 push @{$nntp_opt->{-postconn}}, [ 'compress' ];
219 warn "W: <$uri> COMPRESS failed\n";
222 delete $nntp_opt->{compress};
224 W: <$uri> COMPRESS not supported by Net::NNTP
225 W: see https://rt.cpan.org/Ticket/Display.html?id=129967 for updates
230 $self->{nn_arg}->{$sec} = $nn_arg;
231 $cred->run($nn ? 'approve' : 'reject') if $cred;
237 require PublicInbox::URIimap;
238 my $uri = PublicInbox::URIimap->new($url);
239 $uri ? $uri->canonical : undef;
242 my %IS_NNTP = (news => 1, snews => 1, nntp => 1, nntps => 1);
245 require PublicInbox::URInntps;
246 my $uri = PublicInbox::URInntps->new($url);
247 $uri && $IS_NNTP{$uri->scheme} && $uri->group ? $uri->canonical : undef;
250 sub cfg_intvl ($$$) {
251 my ($cfg, $key, $url) = @_;
252 my $v = $cfg->urlmatch($key, $url) // return;
253 $v =~ /\A[0-9]+(?:\.[0-9]+)?\z/s and return $v + 0;
254 if (ref($v) eq 'ARRAY') {
255 $v = join(', ', @$v);
256 warn "W: $key has multiple values: $v\nW: $key ignored\n";
258 warn "W: $key=$v is not a numeric value in seconds\n";
263 my ($cfg, $key, $url) = @_;
264 my $orig = $cfg->urlmatch($key, $url) // return;
265 my $bool = $cfg->git_bool($orig);
266 warn "W: $key=$orig for $url is not boolean\n" unless defined($bool);
270 # flesh out common IMAP-specific data structures
271 sub imap_common_init ($;$) {
272 my ($self, $lei) = @_;
273 return unless $self->{imap_order};
274 $self->{quiet} = 1 if $lei && $lei->{opt}->{quiet};
275 eval { require PublicInbox::IMAPClient } or
276 die "Mail::IMAPClient is required for IMAP:\n$@\n";
277 ($lei || eval { require PublicInbox::IMAPTracker }) or
278 die "DBD::SQLite is required for IMAP\n:$@\n";
279 require PublicInbox::URIimap;
280 my $cfg = $self->{pi_cfg} // $lei->_lei_cfg;
281 my $mic_args = {}; # scheme://authority => Mail:IMAPClient arg
282 for my $uri (@{$self->{imap_order}}) {
283 my $sec = uri_section($uri);
284 for my $k (qw(Starttls Debug Compress)) {
285 my $bool = cfg_bool($cfg, "imap.$k", $$uri) // next;
286 $mic_args->{$sec}->{$k} = $bool;
288 my $to = cfg_intvl($cfg, 'imap.timeout', $$uri);
289 $mic_args->{$sec}->{Timeout} = $to if $to;
290 my $sa = socks_args($cfg->urlmatch('imap.Proxy', $$uri));
291 $self->{imap_opt}->{$sec}->{-proxy_cfg} = $sa if $sa;
292 for my $k (qw(pollInterval idleInterval)) {
293 $to = cfg_intvl($cfg, "imap.$k", $$uri) // next;
294 $self->{imap_opt}->{$sec}->{$k} = $to;
296 my $k = 'imap.fetchBatchSize';
297 my $bs = $cfg->urlmatch($k, $$uri) // next;
298 if ($bs =~ /\A([0-9]+)\z/) {
299 $self->{imap_opt}->{$sec}->{batch_size} = $bs;
301 warn "$k=$bs is not an integer\n";
304 # make sure we can connect and cache the credentials in memory
305 $self->{mic_arg} = {}; # schema://authority => IMAPClient->new args
306 my $mics = {}; # schema://authority => IMAPClient obj
307 for my $uri (@{$self->{imap_order}}) {
308 my $sec = uri_section($uri);
309 my $mic = $mics->{$sec} //=
310 mic_for($self, "$sec/", $mic_args, $lei) //
311 die "Unable to continue\n";
312 next unless $self->isa('PublicInbox::NetWriter');
313 my $dst = $uri->mailbox // next;
314 next if $mic->exists($dst); # already exists
315 $mic->create($dst) or die "CREATE $dst failed <$uri>: $@";
320 # flesh out common NNTP-specific data structures
321 sub nntp_common_init ($;$) {
322 my ($self, $lei) = @_;
323 return unless $self->{nntp_order};
324 $self->{quiet} = 1 if $lei && $lei->{opt}->{quiet};
325 eval { require Net::NNTP } or
326 die "Net::NNTP is required for NNTP:\n$@\n";
327 ($lei || eval { require PublicInbox::IMAPTracker }) or
328 die "DBD::SQLite is required for NNTP\n:$@\n";
329 my $cfg = $self->{pi_cfg} // $lei->_lei_cfg;
330 my $nn_args = {}; # scheme://authority => Net::NNTP->new arg
331 for my $uri (@{$self->{nntp_order}}) {
332 my $sec = uri_section($uri);
333 my $args = $nn_args->{$sec} //= {};
335 # Debug and Timeout are passed to Net::NNTP->new
336 my $v = cfg_bool($cfg, 'nntp.Debug', $$uri);
337 $args->{Debug} = $v if defined $v;
338 my $to = cfg_intvl($cfg, 'nntp.Timeout', $$uri);
339 $args->{Timeout} = $to if $to;
340 my $sa = socks_args($cfg->urlmatch('nntp.Proxy', $$uri));
341 %$args = (%$args, %$sa) if $sa;
343 # Net::NNTP post-connect commands
344 for my $k (qw(starttls compress)) {
345 $v = cfg_bool($cfg, "nntp.$k", $$uri) // next;
346 $self->{nntp_opt}->{$sec}->{$k} = $v;
349 # -watch internal option
350 for my $k (qw(pollInterval)) {
351 $to = cfg_intvl($cfg, "nntp.$k", $$uri) // next;
352 $self->{nntp_opt}->{$sec}->{$k} = $to;
355 # make sure we can connect and cache the credentials in memory
356 $self->{nn_arg} = {}; # schema://authority => Net::NNTP->new args
357 my %nn; # schema://authority => Net::NNTP object
358 for my $uri (@{$self->{nntp_order}}) {
359 my $sec = uri_section($uri);
360 $nn{$sec} //= nn_for($self, $uri, $nn_args, $lei);
362 \%nn; # for optional {nn_cached}
366 my ($self, $arg) = @_;
368 if ($uri = imap_uri($arg)) {
369 push @{$self->{imap_order}}, $uri;
370 } elsif ($uri = nntp_uri($arg)) {
371 push @{$self->{nntp_order}}, $uri;
373 push @{$self->{unsupported_url}}, $arg;
378 my ($self, $lei) = @_;
379 if (my $u = $self->{unsupported_url}) {
380 return "Unsupported URL(s): @$u";
382 if ($self->{imap_order}) {
383 eval { require PublicInbox::IMAPClient } or
384 die "Mail::IMAPClient is required for IMAP:\n$@\n";
386 if ($self->{nntp_order}) {
387 eval { require Net::NNTP } or
388 die "Net::NNTP is required for NNTP:\n$@\n";
390 my $sa = socks_args($lei ? $lei->{opt}->{proxy} : undef);
391 $self->{-proxy_cli} = $sa if $sa;
395 sub _imap_do_msg ($$$$$) {
396 my ($self, $url, $uid, $raw, $flags) = @_;
397 # our target audience expects LF-only, save storage
398 $$raw =~ s/\r\n/\n/sg;
400 for my $f (split(/ /, $flags)) {
401 if (my $k = $IMAPflags2kw{$f}) {
403 } elsif ($f eq "\\Recent") { # not in JMAP
404 } elsif ($f eq "\\Deleted") { # not in JMAP
406 } elsif ($self->{verbose}) {
407 warn "# unknown IMAP flag $f <$url/;UID=$uid>\n";
410 @$kw = sort @$kw; # for all UI/UX purposes
411 my ($eml_cb, @args) = @{$self->{eml_each}};
412 $eml_cb->($url, $uid, $kw, PublicInbox::Eml->new($raw), @args);
415 sub run_commit_cb ($) {
417 my $cmt_cb_args = $self->{on_commit} or return;
418 my ($cb, @args) = @$cmt_cb_args;
422 sub _itrk_last ($$;$) {
423 my ($self, $uri, $r_uidval) = @_;
424 return (undef, undef, $r_uidval) unless $self->{incremental};
425 my ($itrk, $l_uid, $l_uidval);
426 if (defined(my $lms = $self->{-lms_ro})) { # LeiMailSync or 0
427 $uri->uidvalidity($r_uidval) if defined $r_uidval;
429 $l_uid = ($lms && ($x = $lms->location_stats($$uri))) ?
430 $x->{'uid.max'} : undef;
431 # itrk remains undef, lei/store worker writes to
434 $itrk = PublicInbox::IMAPTracker->new($$uri);
435 ($l_uidval, $l_uid) = $itrk->get_last($$uri);
437 ($itrk, $l_uid, $l_uidval //= $r_uidval);
440 sub _imap_fetch_all ($$$) {
441 my ($self, $mic, $orig_uri) = @_;
442 my $sec = uri_section($orig_uri);
443 my $mbx = $orig_uri->mailbox;
444 $mic->Clear(1); # trim results history
445 $mic->examine($mbx) or return "E: EXAMINE $mbx ($sec) failed: $!";
446 my ($r_uidval, $r_uidnext);
447 for ($mic->Results) {
448 /^\* OK \[UIDVALIDITY ([0-9]+)\].*/ and $r_uidval = $1;
449 /^\* OK \[UIDNEXT ([0-9]+)\].*/ and $r_uidnext = $1;
450 last if $r_uidval && $r_uidnext;
452 $r_uidval //= $mic->uidvalidity($mbx) //
453 return "E: $orig_uri cannot get UIDVALIDITY";
454 $r_uidnext //= $mic->uidnext($mbx) //
455 return "E: $orig_uri cannot get UIDNEXT";
456 my $expect = $orig_uri->uidvalidity // $r_uidval;
457 return <<EOF if $expect != $r_uidval;
458 E: $orig_uri UIDVALIDITY mismatch (got $r_uidval)
461 my $uri = $orig_uri->clone;
462 my ($itrk, $l_uid, $l_uidval) = _itrk_last($self, $uri, $r_uidval);
463 return <<EOF if $l_uidval != $r_uidval;
464 E: $uri UIDVALIDITY mismatch
465 E: local=$l_uidval != remote=$r_uidval
467 $uri->uidvalidity($r_uidval);
469 my $r_uid = $r_uidnext - 1;
470 return <<EOF if $l_uid > $r_uid;
471 E: $uri local UID exceeds remote ($l_uid > $r_uid)
472 E: $uri strangely, UIDVALIDLITY matches ($l_uidval)
474 return if $l_uid >= $r_uid; # nothing to do
476 my ($mod, $shard) = @{$self->{shard_info} // []};
477 unless ($self->{quiet}) {
478 my $m = $mod ? " [(UID % $mod) == $shard]" : '';
479 warn "# $uri fetching UID $l_uid:$r_uid$m\n";
481 $mic->Uid(1); # the default, we hope
482 my $bs = $self->{imap_opt}->{$sec}->{batch_size} // 1;
483 my $req = $mic->imap4rev1 ? 'BODY.PEEK[]' : 'RFC822.PEEK';
489 # I wish "UID FETCH $START:*" could work, but:
490 # 1) servers do not need to return results in any order
491 # 2) Mail::IMAPClient doesn't offer a streaming API
492 unless ($uids = $mic->search("UID $l_uid:*")) {
493 return if $!{EINTR} && $self->{quit};
494 return "E: $uri UID SEARCH $l_uid:* error: $!";
496 return if scalar(@$uids) == 0;
498 # RFC 3501 doesn't seem to indicate order of UID SEARCH
499 # responses, so sort it ourselves. Order matters so
500 # IMAPTracker can store the newest UID.
501 @$uids = sort { $a <=> $b } @$uids;
503 # Did we actually get new messages?
504 return if $uids->[0] < $l_uid;
506 $l_uid = $uids->[-1] + 1; # for next search
508 my $n = $self->{max_batch};
510 @$uids = grep { ($_ % $mod) == $shard } @$uids if $mod;
511 while (scalar @$uids) {
512 my @batch = splice(@$uids, 0, $bs);
513 $batch = join(',', @batch);
514 local $0 = "UID:$batch $mbx $sec";
515 my $r = $mic->fetch_hash($batch, $req, 'FLAGS');
516 unless ($r) { # network error?
517 last if $!{EINTR} && $self->{quit};
518 $err = "E: $uri UID FETCH $batch error: $!";
521 for my $uid (@batch) {
522 # messages get deleted, so holes appear
523 my $per_uid = delete $r->{$uid} // next;
524 my $raw = delete($per_uid->{$key}) // next;
525 _imap_do_msg($self, $$uri, $uid, \$raw,
528 last if $self->{quit};
530 last if $self->{quit};
532 run_commit_cb($self);
533 $itrk->update_last($r_uidval, $last_uid) if $itrk;
534 } until ($err || $self->{quit});
538 # uses cached auth info prepared by mic_for
540 my ($self, $uri) = @_;
541 my $sec = uri_section($uri);
542 # see if caller saved result of imap_common_init
543 my $cached = $self->{mics_cached};
545 my $mic = $cached->{$sec};
546 return $mic if $mic && $mic->IsConnected;
547 delete $cached->{$sec};
549 my $mic_arg = $self->{mic_arg}->{$sec} or
550 die "BUG: no Mail::IMAPClient->new arg for $sec";
551 if (defined(my $cb_name = $mic_arg->{Authcallback})) {
552 if (ref($cb_name) ne 'CODE') {
553 $mic_arg->{Authcallback} = $self->can($cb_name);
556 my $mic = mic_new($self, $mic_arg, $sec, $uri);
557 $cached //= {}; # invalid placeholder if no cache enabled
558 $mic && $mic->IsConnected ? ($cached->{$sec} = $mic) : undef;
562 my ($self, $url, $eml_cb, @args) = @_;
563 my $uri = ref($url) ? $url : PublicInbox::URIimap->new($url);
564 my $sec = uri_section($uri);
565 local $0 = $uri->mailbox." $sec";
566 my $mic = mic_get($self, $uri);
569 local $self->{eml_each} = [ $eml_cb, @args ];
570 $err = _imap_fetch_all($self, $mic, $uri);
572 $err = "E: <$uri> not connected: $!";
574 die $err if $err && $self->{-can_die};
579 # may used cached auth info prepared by nn_for once
581 my ($self, $uri) = @_;
582 my $sec = uri_section($uri);
583 # see if caller saved result of nntp_common_init
584 my $cached = $self->{nn_cached} // {};
586 $nn = delete($cached->{$sec}) and return $nn;
587 my $nn_arg = $self->{nn_arg}->{$sec} or
588 die "BUG: no Net::NNTP->new arg for $sec";
589 my $nntp_opt = $self->{nntp_opt}->{$sec};
590 $nn = nn_new($nn_arg, $nntp_opt, $uri) or return;
591 if (my $postconn = $nntp_opt->{-postconn}) {
592 for my $m_arg (@$postconn) {
593 my ($method, @args) = @$m_arg;
594 $nn->$method(@args) and next;
595 die "E: <$uri> $method failed\n";
602 sub _nntp_fetch_all ($$$) {
603 my ($self, $nn, $uri) = @_;
604 my ($group, $num_a, $num_b) = $uri->group;
605 my $sec = uri_section($uri);
606 my ($nr, $beg, $end) = $nn->group($group);
607 unless (defined($nr)) {
608 my $msg = ndump($nn->message);
609 return "E: GROUP $group <$sec> $msg";
612 # IMAPTracker is also used for tracking NNTP, UID == article number
613 # LIST.ACTIVE can get the equivalent of UIDVALIDITY, but that's
614 # expensive. So we assume newsgroups don't change:
615 my ($itrk, $l_art) = _itrk_last($self, $uri);
617 # allow users to specify articles to refetch
618 # cf. https://tools.ietf.org/id/draft-gilman-news-url-01.txt
619 # nntp://example.com/inbox.foo/$num_a-$num_b
620 $beg = $num_a if defined($num_a) && $num_a < $beg;
621 $end = $num_b if defined($num_b) && $num_b < $end;
622 if (defined $l_art) {
623 return if $l_art >= $end; # nothing to do
626 my ($err, $art, $last_art, $kw); # kw stays undef, no keywords in NNTP
627 unless ($self->{quiet}) {
628 warn "# $uri fetching ARTICLE $beg..$end\n";
630 my $n = $self->{max_batch};
632 last if $self->{quit};
635 run_commit_cb($self);
636 $itrk->update_last(0, $last_art) if $itrk;
637 $n = $self->{max_batch};
639 my $raw = $nn->article($art);
640 unless (defined($raw)) {
641 my $msg = ndump($nn->message);
642 if ($nn->code == 421) { # pseudo response from Net::Cmd
645 } else { # probably just a deleted message (spam)
650 $raw = join('', @$raw);
651 $raw =~ s/\r\n/\n/sg;
652 my ($eml_cb, @args) = @{$self->{eml_each}};
653 $eml_cb->($uri, $art, $kw, PublicInbox::Eml->new(\$raw), @args);
656 run_commit_cb($self);
657 $itrk->update_last(0, $last_art) if $itrk;
662 my ($self, $url, $eml_cb, @args) = @_;
663 my $uri = ref($url) ? $url : PublicInbox::URInntps->new($url);
664 my $sec = uri_section($uri);
665 local $0 = $uri->group ." $sec";
666 my $nn = nn_get($self, $uri);
667 return if $self->{quit};
670 local $self->{eml_each} = [ $eml_cb, @args ];
671 $err = _nntp_fetch_all($self, $nn, $uri);
673 $err = "E: <$uri> not connected: $!";
675 die $err if $err && $self->{-can_die};
680 sub new { bless {}, shift };