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 # for IO::Socket::Socks
39 return { ProxyAddr => $h, ProxyPort => $p };
41 die "$val not understood (only socks5h:// is supported)\n";
45 my ($self, $mic_arg, $sec, $uri) = @_;
46 my %mic_arg = (%$mic_arg, Keepalive => 1);
47 my $sa = $self->{cfg_opt}->{$sec}->{-proxy_cfg} || $self->{-proxy_cli};
49 # this `require' needed for worker[1..Inf], since socks_args
50 # only got called in worker[0]
51 require IO::Socket::Socks;
52 my %opt = (%$sa, Keepalive => 1);
53 $opt{SocksDebug} = 1 if $mic_arg{Debug};
54 $opt{ConnectAddr} = delete $mic_arg{Server};
55 $opt{ConnectPort} = delete $mic_arg{Port};
56 my $s = IO::Socket::Socks->new(%opt) or die
57 "E: <$uri> ".eval('$IO::Socket::Socks::SOCKS_ERROR');
58 if ($mic_arg->{Ssl}) { # for imaps://
59 require IO::Socket::SSL;
60 $s = IO::Socket::SSL->start_SSL($s) or die
61 "E: <$uri> ".(IO::Socket::SSL->errstr // '');
63 $mic_arg{Socket} = $s;
65 PublicInbox::IMAPClient->new(%mic_arg);
68 sub auth_anon_cb { '' }; # for Mail::IMAPClient::Authcallback
72 $uri->host =~ /\.onion\z/i or return "\n";
73 my $t = $uri->isa('PublicInbox::URIimap') ? 'imap' : 'nntp';
74 my $url = uri_section($uri);
75 my $set_cfg = 'lei config';
76 if (!$lei) { # public-inbox-watch
77 my $f = $ENV{PI_CONFIG} || '~/.public-inbox/config';
78 $set_cfg = "git config -f $f";
82 Assuming you have Tor configured and running locally on port 9050,
83 try configuring a socks5h:// proxy:
86 $set_cfg $t.\$url.proxy socks5h://127.0.0.1:9050
88 ...before retrying your current command
92 # mic_for may prompt the user and store auth info, prepares mic_get
93 sub mic_for ($$$$) { # mic = Mail::IMAPClient
94 my ($self, $uri, $mic_common, $lei) = @_;
95 require PublicInbox::GitCredential;
98 protocol => $uri->scheme,
100 username => $uri->user,
101 password => $uri->password,
102 }, 'PublicInbox::GitCredential';
103 my $sec = uri_section($uri);
104 my $common = $mic_common->{$sec} // {};
105 # IMAPClient and Net::Netrc both mishandles `0', so we pass `127.0.0.1'
106 my $host = $cred->{host};
107 $host = '127.0.0.1' if $host eq '0';
111 %$common, # may set Starttls, Compress, Debug ....
113 $mic_arg->{Ssl} = 1 if $uri->scheme eq 'imaps';
114 require PublicInbox::IMAPClient;
115 my $mic = mic_new($self, $mic_arg, $sec, $uri);
116 ($mic && $mic->IsConnected) or
117 die "E: <$uri> new: $@".onion_hint($lei, $uri);
119 # default to using STARTTLS if it's available, but allow
120 # it to be disabled since I usually connect to localhost
121 if (!$mic_arg->{Ssl} && !defined($mic_arg->{Starttls}) &&
122 $mic->has_capability('STARTTLS') &&
123 $mic->can('starttls')) {
124 $mic->starttls or die "E: <$uri> STARTTLS: $@\n";
127 # do we even need credentials?
128 if (!defined($cred->{username}) &&
129 $mic->has_capability('AUTH=ANONYMOUS')) {
133 my $p = $cred->{password} // $cred->check_netrc($lei);
134 $cred->fill($lei) unless defined($p); # may prompt user here
135 $mic->User($mic_arg->{User} = $cred->{username});
136 $mic->Password($mic_arg->{Password} = $cred->{password});
137 } else { # AUTH=ANONYMOUS
138 $mic->Authmechanism($mic_arg->{Authmechanism} = 'ANONYMOUS');
139 $mic_arg->{Authcallback} = 'auth_anon_cb';
140 $mic->Authcallback(\&auth_anon_cb);
143 if ($mic->login && $mic->IsAuthenticated) {
144 # success! keep IMAPClient->new arg in case we get disconnected
145 $self->{net_arg}->{$sec} = $mic_arg;
147 $uri->user($cred->{username}) if !defined($uri->user);
148 } elsif ($mic_arg->{Authmechanism} eq 'ANONYMOUS') {
149 $uri->auth('ANONYMOUS') if !defined($uri->auth);
152 $err = "E: <$uri> LOGIN: $@\n";
153 if ($cred && defined($cred->{password})) {
154 $err =~ s/\Q$cred->{password}\E/*******/g;
158 $cred->run($mic ? 'approve' : 'reject') if $cred && $cred->{filled};
160 $lei ? $lei->fail($err) : warn($err);
165 # Net::NNTP doesn't support CAPABILITIES, yet
166 sub try_starttls ($) {
168 return if $host =~ /\.onion\z/s;
169 return if $host =~ /\A127\.[0-9]+\.[0-9]+\.[0-9]+\z/s;
170 return if $host eq '::1';
175 my ($nn_arg, $nntp_cfg, $uri) = @_;
177 if (defined $nn_arg->{ProxyAddr}) {
178 require PublicInbox::NetNNTPSocks;
179 $nn_arg->{SocksDebug} = 1 if $nn_arg->{Debug};
180 eval { $nn = PublicInbox::NetNNTPSocks->new_socks(%$nn_arg) };
181 die "E: <$uri> $@\n" if $@;
183 $nn = Net::NNTP->new(%$nn_arg) or return;
186 # default to using STARTTLS if it's available, but allow
187 # it to be disabled for localhost/VPN users
188 if (!$nn_arg->{SSL} && $nn->can('starttls')) {
189 if (!defined($nntp_cfg->{starttls}) &&
190 try_starttls($nn_arg->{Host})) {
191 # soft fail by default
192 $nn->starttls or warn <<"";
193 W: <$uri> STARTTLS tried and failed (not requested)
195 } elsif ($nntp_cfg->{starttls}) {
196 # hard fail if explicitly configured
197 $nn->starttls or die <<"";
198 E: <$uri> STARTTLS requested and failed
201 } elsif ($nntp_cfg->{starttls}) {
202 $nn->can('starttls') or
203 die "E: <$uri> Net::NNTP too old for STARTTLS\n";
204 $nn->starttls or die <<"";
205 E: <$uri> STARTTLS requested and failed
211 sub nn_for ($$$$) { # nn = Net::NNTP
212 my ($self, $uri, $nn_common, $lei) = @_;
213 my $sec = uri_section($uri);
214 my $nntp_cfg = $self->{cfg_opt}->{$sec} //= {};
215 my $host = $uri->host;
216 # Net::NNTP and Net::Netrc both mishandle `0', so we pass `127.0.0.1'
217 $host = '127.0.0.1' if $host eq '0';
220 if (defined(my $ui = $uri->userinfo)) {
221 require PublicInbox::GitCredential;
224 protocol => $uri->scheme,
226 }, 'PublicInbox::GitCredential';
227 ($u, $p) = split(/:/, $ui, 2);
228 ($cred->{username}, $cred->{password}) = ($u, $p);
229 $p //= $cred->check_netrc($lei);
231 my $common = $nn_common->{$sec} // {};
235 %$common, # may Debug ....
237 $nn_arg->{SSL} = 1 if $uri->secure; # snews == nntps
238 my $sa = $self->{-proxy_cli};
239 %$nn_arg = (%$nn_arg, %$sa) if $sa;
240 my $nn = nn_new($nn_arg, $nntp_cfg, $uri) or
241 die "E: <$uri> new: $@".onion_hint($lei, $uri);
243 $cred->fill($lei) unless defined($p); # may prompt user here
244 if ($nn->authinfo($u, $p)) {
245 push @{$nntp_cfg->{-postconn}}, [ 'authinfo', $u, $p ];
247 warn "E: <$uri> AUTHINFO $u XXXX failed\n";
252 if ($nntp_cfg->{compress}) {
253 # https://rt.cpan.org/Ticket/Display.html?id=129967
254 if ($nn->can('compress')) {
256 push @{$nntp_cfg->{-postconn}}, [ 'compress' ];
258 warn "W: <$uri> COMPRESS failed\n";
261 delete $nntp_cfg->{compress};
263 W: <$uri> COMPRESS not supported by Net::NNTP
264 W: see https://rt.cpan.org/Ticket/Display.html?id=129967 for updates
269 $self->{net_arg}->{$sec} = $nn_arg;
270 $cred->run($nn ? 'approve' : 'reject') if $cred && $cred->{filled};
275 my ($url, $ls_ok) = @_;
276 require PublicInbox::URIimap;
277 my $uri = PublicInbox::URIimap->new($url);
278 $uri && ($ls_ok || $uri->mailbox) ? $uri->canonical : undef;
281 my %IS_NNTP = (news => 1, snews => 1, nntp => 1, nntps => 1);
283 my ($url, $ls_ok) = @_;
284 require PublicInbox::URInntps;
285 my $uri = PublicInbox::URInntps->new($url);
286 $uri && $IS_NNTP{$uri->scheme} && ($ls_ok || $uri->group) ?
287 $uri->canonical : undef;
290 sub cfg_intvl ($$$) {
291 my ($cfg, $key, $url) = @_;
292 my $v = $cfg->urlmatch($key, $url) // return;
293 $v =~ /\A[0-9]+(?:\.[0-9]+)?\z/s and return $v + 0;
294 if (ref($v) eq 'ARRAY') {
295 $v = join(', ', @$v);
296 warn "W: $key has multiple values: $v\nW: $key ignored\n";
298 warn "W: $key=$v is not a numeric value in seconds\n";
303 my ($cfg, $key, $url) = @_;
304 my $orig = $cfg->urlmatch($key, $url) // return;
305 my $bool = $cfg->git_bool($orig);
306 warn "W: $key=$orig for $url is not boolean\n" unless defined($bool);
310 # flesh out common IMAP-specific data structures
311 sub imap_common_init ($;$) {
312 my ($self, $lei) = @_;
313 return unless $self->{imap_order};
314 $self->{quiet} = 1 if $lei && $lei->{opt}->{quiet};
315 eval { require PublicInbox::IMAPClient } or
316 die "Mail::IMAPClient is required for IMAP:\n$@\n";
317 ($lei || eval { require PublicInbox::IMAPTracker }) or
318 die "DBD::SQLite is required for IMAP\n:$@\n";
319 require PublicInbox::URIimap;
320 my $cfg = $self->{pi_cfg} // $lei->_lei_cfg;
321 my $mic_common = {}; # scheme://authority => Mail:IMAPClient arg
322 for my $uri (@{$self->{imap_order}}) {
323 my $sec = uri_section($uri);
325 # knobs directly for Mail::IMAPClient->new
326 for my $k (qw(Starttls Debug Compress Ignoresizeerrors)) {
327 my $bool = cfg_bool($cfg, "imap.$k", $$uri) // next;
328 $mic_common->{$sec}->{$k} = $bool;
330 my $to = cfg_intvl($cfg, 'imap.timeout', $$uri);
331 $mic_common->{$sec}->{Timeout} = $to if $to;
333 # knobs we use ourselves:
334 my $sa = socks_args($cfg->urlmatch('imap.Proxy', $$uri));
335 $self->{cfg_opt}->{$sec}->{-proxy_cfg} = $sa if $sa;
336 for my $k (qw(pollInterval idleInterval)) {
337 $to = cfg_intvl($cfg, "imap.$k", $$uri) // next;
338 $self->{cfg_opt}->{$sec}->{$k} = $to;
340 my $k = 'imap.fetchBatchSize';
341 my $bs = $cfg->urlmatch($k, $$uri) // next;
342 if ($bs =~ /\A([0-9]+)\z/) {
343 $self->{cfg_opt}->{$sec}->{batch_size} = $bs;
345 warn "$k=$bs is not an integer\n";
348 # make sure we can connect and cache the credentials in memory
349 my $mics = {}; # schema://authority => IMAPClient obj
350 for my $orig_uri (@{$self->{imap_order}}) {
351 my $sec = uri_section($orig_uri);
352 my $uri = PublicInbox::URIimap->new("$sec/");
353 my $mic = $mics->{$sec} //=
354 mic_for($self, $uri, $mic_common, $lei) //
355 die "Unable to continue\n";
356 next unless $self->isa('PublicInbox::NetWriter');
357 my $dst = $orig_uri->mailbox // next;
358 next if $mic->exists($dst); # already exists
359 $mic->create($dst) or die "CREATE $dst failed <$orig_uri>: $@";
364 # flesh out common NNTP-specific data structures
365 sub nntp_common_init ($;$) {
366 my ($self, $lei) = @_;
367 return unless $self->{nntp_order};
368 $self->{quiet} = 1 if $lei && $lei->{opt}->{quiet};
369 eval { require Net::NNTP } or
370 die "Net::NNTP is required for NNTP:\n$@\n";
371 ($lei || eval { require PublicInbox::IMAPTracker }) or
372 die "DBD::SQLite is required for NNTP\n:$@\n";
373 my $cfg = $self->{pi_cfg} // $lei->_lei_cfg;
374 my $nn_common = {}; # scheme://authority => Net::NNTP->new arg
375 for my $uri (@{$self->{nntp_order}}) {
376 my $sec = uri_section($uri);
377 my $args = $nn_common->{$sec} //= {};
379 # Debug and Timeout are passed to Net::NNTP->new
380 my $v = cfg_bool($cfg, 'nntp.Debug', $$uri);
381 $args->{Debug} = $v if defined $v;
382 my $to = cfg_intvl($cfg, 'nntp.Timeout', $$uri);
383 $args->{Timeout} = $to if $to;
384 my $sa = socks_args($cfg->urlmatch('nntp.Proxy', $$uri));
385 %$args = (%$args, %$sa) if $sa;
387 # Net::NNTP post-connect commands
388 for my $k (qw(starttls compress)) {
389 $v = cfg_bool($cfg, "nntp.$k", $$uri) // next;
390 $self->{cfg_opt}->{$sec}->{$k} = $v;
393 # -watch internal option
394 for my $k (qw(pollInterval)) {
395 $to = cfg_intvl($cfg, "nntp.$k", $$uri) // next;
396 $self->{cfg_opt}->{$sec}->{$k} = $to;
399 # make sure we can connect and cache the credentials in memory
400 my %nn; # schema://authority => Net::NNTP object
401 for my $uri (@{$self->{nntp_order}}) {
402 my $sec = uri_section($uri);
403 $nn{$sec} //= nn_for($self, $uri, $nn_common, $lei);
405 \%nn; # for optional {nn_cached}
409 my ($self, $arg, $ls_ok) = @_;
411 if ($uri = imap_uri($arg, $ls_ok)) {
412 $_[1] = $$uri; # canonicalized
413 push @{$self->{imap_order}}, $uri;
414 } elsif ($uri = nntp_uri($arg, $ls_ok)) {
415 $_[1] = $$uri; # canonicalized
416 push @{$self->{nntp_order}}, $uri;
418 push @{$self->{unsupported_url}}, $arg;
423 my ($self, $lei) = @_;
424 if (my $u = $self->{unsupported_url}) {
425 return "Unsupported URL(s): @$u";
427 if ($self->{imap_order}) {
428 eval { require PublicInbox::IMAPClient } or
429 die "Mail::IMAPClient is required for IMAP:\n$@\n";
431 if ($self->{nntp_order}) {
432 eval { require Net::NNTP } or
433 die "Net::NNTP is required for NNTP:\n$@\n";
435 my $sa = socks_args($lei ? $lei->{opt}->{proxy} : undef);
436 $self->{-proxy_cli} = $sa if $sa;
440 sub flags2kw ($$$$) {
441 my ($self, $uri, $uid, $flags) = @_;
443 for my $f (split(/ /, $flags)) {
444 if (my $k = $IMAPflags2kw{$f}) {
446 } elsif ($f eq "\\Recent") { # not in JMAP
447 } elsif ($f eq "\\Deleted") { # not in JMAP
449 } elsif ($self->{verbose}) {
450 warn "# unknown IMAP flag $f <$uri/;UID=$uid>\n";
453 @$kw = sort @$kw; # for LeiSearch->kw_changed and UI/UX purposes
457 sub _imap_do_msg ($$$$$) {
458 my ($self, $uri, $uid, $raw, $flags) = @_;
459 # our target audience expects LF-only, save storage
460 $$raw =~ s/\r\n/\n/sg;
461 my $kw = defined($flags) ?
462 (flags2kw($self, $uri, $uid, $flags) // return) : undef;
463 my ($eml_cb, @args) = @{$self->{eml_each}};
464 $eml_cb->($uri, $uid, $kw, PublicInbox::Eml->new($raw), @args);
467 sub run_commit_cb ($) {
469 my $cmt_cb_args = $self->{on_commit} or return;
470 my ($cb, @args) = @$cmt_cb_args;
474 sub itrk_last ($$;$$) {
475 my ($self, $uri, $r_uidval, $mic) = @_;
476 return (undef, undef, $r_uidval) unless $self->{incremental};
477 my ($itrk, $l_uid, $l_uidval);
478 if (defined(my $lms = $self->{-lms_ro})) { # LeiMailSync or 0
479 $uri->uidvalidity($r_uidval) if defined $r_uidval;
481 my $auth = $mic->Authmechanism // '';
482 $uri->auth($auth) if $auth eq 'ANONYMOUS';
483 my $user = $mic->User;
484 $uri->user($user) if defined($user);
487 $l_uid = ($lms && ($x = $lms->location_stats($$uri))) ?
488 $x->{'uid.max'} : undef;
489 # itrk remains undef, lei/store worker writes to
492 $itrk = PublicInbox::IMAPTracker->new($$uri);
493 ($l_uidval, $l_uid) = $itrk->get_last($$uri);
495 ($itrk, $l_uid, $l_uidval //= $r_uidval);
498 # import flags of already-seen messages
499 sub each_old_flags ($$$$) {
500 my ($self, $mic, $uri, $l_uid) = @_;
502 my $sec = uri_section($uri);
503 my $bs = ($self->{cfg_opt}->{$sec}->{batch_size} // 1) * 10000;
504 my ($eml_cb, @args) = @{$self->{eml_each}};
505 $self->{quiet} or warn "# $uri syncing flags 1:$l_uid\n";
506 for (my $n = 1; $n <= $l_uid; $n += $bs) {
508 $end = $l_uid if $end > $l_uid;
509 my $r = $mic->fetch_hash("$n:$end", 'FLAGS');
511 return if $!{EINTR} && $self->{quit};
512 return "E: $uri UID FETCH $n:$end error: $!";
514 while (my ($uid, $per_uid) = each %$r) {
515 my $kw = flags2kw($self, $uri, $uid, $per_uid->{FLAGS})
517 # LeiImport->input_net_cb
518 $eml_cb->($uri, $uid, $kw, undef, @args);
523 # returns true if PERMANENTFLAGS indicates FLAGS of already imported
524 # messages are meaningful
527 return if !defined($perm_fl);
528 for my $f (split(/[ \t]+/, $perm_fl)) {
529 return 1 if $IMAPflags2kw{$f};
534 # may be overridden in NetWriter or Watch
535 sub folder_select { $_[0]->{each_old} ? 'select' : 'examine' }
537 sub _imap_fetch_all ($$$) {
538 my ($self, $mic, $orig_uri) = @_;
539 my $sec = uri_section($orig_uri);
540 my $mbx = $orig_uri->mailbox;
541 $mic->Clear(1); # trim results history
543 # we need to check for mailbox writability to see if we care about
544 # FLAGS from already-imported messages.
545 my $cmd = $self->folder_select;
546 $mic->$cmd($mbx) or return "E: \U$cmd\E $mbx ($sec) failed: $!";
548 my ($r_uidval, $r_uidnext, $perm_fl);
549 for ($mic->Results) {
550 /^\* OK \[PERMANENTFLAGS \(([^\)]*)\)\].*/ and $perm_fl = $1;
551 /^\* OK \[UIDVALIDITY ([0-9]+)\].*/ and $r_uidval = $1;
552 /^\* OK \[UIDNEXT ([0-9]+)\].*/ and $r_uidnext = $1;
554 $r_uidval //= $mic->uidvalidity($mbx) //
555 return "E: $orig_uri cannot get UIDVALIDITY";
556 $r_uidnext //= $mic->uidnext($mbx) //
557 return "E: $orig_uri cannot get UIDNEXT";
558 my $expect = $orig_uri->uidvalidity // $r_uidval;
559 return <<EOF if $expect != $r_uidval;
560 E: $orig_uri UIDVALIDITY mismatch (got $r_uidval)
563 my $uri = $orig_uri->clone;
564 my $single_uid = $uri->uid;
565 my ($itrk, $l_uid, $l_uidval) = itrk_last($self, $uri, $r_uidval, $mic);
566 if (defined($single_uid)) {
567 $itrk = $l_uid = undef;
568 $uri->uid(undef); # for eml_cb
570 return <<EOF if $l_uidval != $r_uidval;
571 E: $uri UIDVALIDITY mismatch
572 E: local=$l_uidval != remote=$r_uidval
574 $uri->uidvalidity($r_uidval);
576 my $r_uid = $r_uidnext - 1;
577 return <<EOF if $l_uid > $r_uid;
578 E: $uri local UID exceeds remote ($l_uid > $r_uid)
579 E: $uri strangely, UIDVALIDLITY matches ($l_uidval)
581 $mic->Uid(1); # the default, we hope
583 my $use_fl = perm_fl_ok($perm_fl);
584 if (!defined($single_uid) && $self->{each_old} && $use_fl) {
585 $err = each_old_flags($self, $mic, $uri, $l_uid);
588 return if $l_uid >= $r_uid; # nothing to do
590 my ($mod, $shard) = @{$self->{shard_info} // []};
591 unless ($self->{quiet}) {
592 my $m = $mod ? " [(UID % $mod) == $shard]" : '';
593 warn "# $uri fetching UID $l_uid:$r_uid$m\n";
595 my $bs = $self->{cfg_opt}->{$sec}->{batch_size} // 1;
596 my $req = $mic->imap4rev1 ? 'BODY.PEEK[]' : 'RFC822.PEEK';
601 # I wish "UID FETCH $START:*" could work, but:
602 # 1) servers do not need to return results in any order
603 # 2) Mail::IMAPClient doesn't offer a streaming API
604 if (defined $single_uid) {
605 $uids = [ $single_uid ];
606 } elsif (!($uids = $mic->search("UID $l_uid:*"))) {
607 return if $!{EINTR} && $self->{quit};
608 return "E: $uri UID SEARCH $l_uid:* error: $!";
610 return if scalar(@$uids) == 0;
612 # RFC 3501 doesn't seem to indicate order of UID SEARCH
613 # responses, so sort it ourselves. Order matters so
614 # IMAPTracker can store the newest UID.
615 @$uids = sort { $a <=> $b } @$uids;
617 # Did we actually get new messages?
618 return if $uids->[0] < $l_uid;
620 $l_uid = $uids->[-1] + 1; # for next search
622 my $n = $self->{max_batch};
624 @$uids = grep { ($_ % $mod) == $shard } @$uids if $mod;
625 while (scalar @$uids) {
626 my @batch = splice(@$uids, 0, $bs);
627 $batch = join(',', @batch);
628 local $0 = "UID:$batch $mbx $sec";
629 my $r = $mic->fetch_hash($batch, $req, 'FLAGS');
630 unless ($r) { # network error?
631 last if $!{EINTR} && $self->{quit};
632 $err = "E: $uri UID FETCH $batch error: $!";
635 for my $uid (@batch) {
636 # messages get deleted, so holes appear
637 my $per_uid = delete $r->{$uid} // next;
638 my $raw = delete($per_uid->{$key}) // next;
639 my $fl = $use_fl ? $per_uid->{FLAGS} : undef;
640 _imap_do_msg($self, $uri, $uid, \$raw, $fl);
642 last if $self->{quit};
644 last if $self->{quit};
646 run_commit_cb($self);
647 $itrk->update_last($r_uidval, $last_uid) if $itrk;
648 } until ($err || $self->{quit} || defined($single_uid));
652 # uses cached auth info prepared by mic_for
654 my ($self, $uri) = @_;
655 my $sec = uri_section($uri);
656 # see if caller saved result of imap_common_init
657 my $cached = $self->{mics_cached};
659 my $mic = $cached->{$sec};
660 return $mic if $mic && $mic->IsConnected;
661 delete $cached->{$sec};
663 my $mic_arg = $self->{net_arg}->{$sec} or
664 die "BUG: no Mail::IMAPClient->new arg for $sec";
665 if (defined(my $cb_name = $mic_arg->{Authcallback})) {
666 if (ref($cb_name) ne 'CODE') {
667 $mic_arg->{Authcallback} = $self->can($cb_name);
670 my $mic = mic_new($self, $mic_arg, $sec, $uri);
671 $cached //= {}; # invalid placeholder if no cache enabled
672 $mic && $mic->IsConnected ? ($cached->{$sec} = $mic) : undef;
676 my ($self, $url, $eml_cb, @args) = @_;
677 my $uri = ref($url) ? $url : PublicInbox::URIimap->new($url);
678 my $sec = uri_section($uri);
679 local $0 = $uri->mailbox." $sec";
680 my $mic = mic_get($self, $uri);
683 local $self->{eml_each} = [ $eml_cb, @args ];
684 $err = _imap_fetch_all($self, $mic, $uri);
686 $err = "E: <$uri> not connected: $!";
688 die $err if $err && $self->{-can_die};
693 # may used cached auth info prepared by nn_for once
695 my ($self, $uri) = @_;
696 my $sec = uri_section($uri);
697 # see if caller saved result of nntp_common_init
698 my $cached = $self->{nn_cached} // {};
700 $nn = delete($cached->{$sec}) and return $nn;
701 my $nn_arg = $self->{net_arg}->{$sec} or
702 die "BUG: no Net::NNTP->new arg for $sec";
703 my $nntp_cfg = $self->{cfg_opt}->{$sec};
704 $nn = nn_new($nn_arg, $nntp_cfg, $uri) or return;
705 if (my $postconn = $nntp_cfg->{-postconn}) {
706 for my $m_arg (@$postconn) {
707 my ($method, @args) = @$m_arg;
708 $nn->$method(@args) and next;
709 die "E: <$uri> $method failed\n";
716 sub _nntp_fetch_all ($$$) {
717 my ($self, $nn, $uri) = @_;
718 my ($group, $num_a, $num_b) = $uri->group;
719 my $sec = uri_section($uri);
720 my ($nr, $beg, $end) = $nn->group($group);
721 unless (defined($nr)) {
722 my $msg = ndump($nn->message);
723 return "E: GROUP $group <$sec> $msg";
726 # IMAPTracker is also used for tracking NNTP, UID == article number
727 # LIST.ACTIVE can get the equivalent of UIDVALIDITY, but that's
728 # expensive. So we assume newsgroups don't change:
729 my ($itrk, $l_art) = itrk_last($self, $uri);
731 # allow users to specify articles to refetch
732 # cf. https://tools.ietf.org/id/draft-gilman-news-url-01.txt
733 # nntp://example.com/inbox.foo/$num_a-$num_b
734 $beg = $num_a if defined($num_a) && $num_a < $beg;
735 $end = $num_b if defined($num_b) && $num_b < $end;
736 if (defined $l_art) {
737 return if $l_art >= $end; # nothing to do
740 my ($err, $art, $last_art, $kw); # kw stays undef, no keywords in NNTP
741 unless ($self->{quiet}) {
742 warn "# $uri fetching ARTICLE $beg..$end\n";
744 my $n = $self->{max_batch};
746 last if $self->{quit};
749 run_commit_cb($self);
750 $itrk->update_last(0, $last_art) if $itrk;
751 $n = $self->{max_batch};
753 my $raw = $nn->article($art);
754 unless (defined($raw)) {
755 my $msg = ndump($nn->message);
756 if ($nn->code == 421) { # pseudo response from Net::Cmd
759 } else { # probably just a deleted message (spam)
764 $raw = join('', @$raw);
765 $raw =~ s/\r\n/\n/sg;
766 my ($eml_cb, @args) = @{$self->{eml_each}};
767 $eml_cb->($uri, $art, $kw, PublicInbox::Eml->new(\$raw), @args);
770 run_commit_cb($self);
771 $itrk->update_last(0, $last_art) if $itrk;
776 my ($self, $url, $eml_cb, @args) = @_;
777 my $uri = ref($url) ? $url : PublicInbox::URInntps->new($url);
778 my $sec = uri_section($uri);
779 local $0 = $uri->group ." $sec";
780 my $nn = nn_get($self, $uri);
781 return if $self->{quit};
784 local $self->{eml_each} = [ $eml_cb, @args ];
785 $err = _nntp_fetch_all($self, $nn, $uri);
787 $err = "E: <$uri> not connected: $!";
789 die $err if $err && $self->{-can_die};
794 sub new { bless {}, shift };
796 # updates $uri with UIDVALIDITY
798 my ($self, $uri) = @_;
799 my $mic = $self->mic_get($uri) or die "E: not connected: $@";
800 my $m = $self->isa('PublicInbox::NetWriter') ? 'select' : 'examine';
801 $mic->$m($uri->mailbox) or return;
803 for ($mic->Results) {
804 /^\* OK \[UIDVALIDITY ([0-9]+)\].*/ or next;
808 $uidval //= $mic->uidvalidity($uri->mailbox) or
809 die "E: failed to get uidvalidity from <$uri>: $@";
810 $uri->uidvalidity($uidval);