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;
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;
54 $opt{SocksDebug} = 1 if $mic_arg{Debug};
55 $opt{ConnectAddr} = delete $mic_arg{Server};
56 $opt{ConnectPort} = delete $mic_arg{Port};
57 $mic_arg{Socket} = IO::Socket::Socks->new(%opt) or die
58 "E: <$$uri> ".eval('$IO::Socket::Socks::SOCKS_ERROR');
60 PublicInbox::IMAPClient->new(%mic_arg, Keepalive => 1);
63 sub auth_anon_cb { '' }; # for Mail::IMAPClient::Authcallback
67 $uri->host =~ /\.onion\z/i or return "\n";
68 my $t = $uri->isa('PublicInbox::URIimap') ? 'imap' : 'nntp';
69 my $url = uri_section($uri);
70 my $set_cfg = 'lei config';
71 if (!$lei) { # public-inbox-watch
72 my $f = $ENV{PI_CONFIG} || '~/.public-inbox/config';
73 $set_cfg = "git config -f $f";
77 Assuming you have Tor configured and running locally on port 9050,
78 try configuring a socks5h:// proxy:
81 $set_cfg $t.\$url.proxy socks5h://127.0.0.1:9050
83 ...before retrying your current command
87 # mic_for may prompt the user and store auth info, prepares mic_get
88 sub mic_for ($$$$) { # mic = Mail::IMAPClient
89 my ($self, $uri, $mic_common, $lei) = @_;
90 require PublicInbox::GitCredential;
93 protocol => $uri->scheme,
95 username => $uri->user,
96 password => $uri->password,
97 }, 'PublicInbox::GitCredential';
98 my $sec = uri_section($uri);
99 my $common = $mic_common->{$sec} // {};
100 # IMAPClient and Net::Netrc both mishandles `0', so we pass `127.0.0.1'
101 my $host = $cred->{host};
102 $host = '127.0.0.1' if $host eq '0';
106 Ssl => $uri->scheme eq 'imaps',
107 %$common, # may set Starttls, Compress, Debug ....
109 $mic_arg->{Ssl} = 1 if $uri->scheme eq 'imaps';
110 require PublicInbox::IMAPClient;
111 my $mic = mic_new($self, $mic_arg, $sec, $uri);
112 ($mic && $mic->IsConnected) or
113 die "E: <$uri> new: $@".onion_hint($lei, $uri);
115 # default to using STARTTLS if it's available, but allow
116 # it to be disabled since I usually connect to localhost
117 if (!$mic_arg->{Ssl} && !defined($mic_arg->{Starttls}) &&
118 $mic->has_capability('STARTTLS') &&
119 $mic->can('starttls')) {
120 $mic->starttls or die "E: <$uri> STARTTLS: $@\n";
123 # do we even need credentials?
124 if (!defined($cred->{username}) &&
125 $mic->has_capability('AUTH=ANONYMOUS')) {
129 my $p = $cred->{password} // $cred->check_netrc($lei);
130 $cred->fill($lei) unless defined($p); # may prompt user here
131 $mic->User($mic_arg->{User} = $cred->{username});
132 $mic->Password($mic_arg->{Password} = $cred->{password});
133 } else { # AUTH=ANONYMOUS
134 $mic->Authmechanism($mic_arg->{Authmechanism} = 'ANONYMOUS');
135 $mic_arg->{Authcallback} = 'auth_anon_cb';
136 $mic->Authcallback(\&auth_anon_cb);
139 if ($mic->login && $mic->IsAuthenticated) {
140 # success! keep IMAPClient->new arg in case we get disconnected
141 $self->{net_arg}->{$sec} = $mic_arg;
143 $uri->user($cred->{username}) if !defined($uri->user);
144 } elsif ($mic_arg->{Authmechanism} eq 'ANONYMOUS') {
145 $uri->auth('ANONYMOUS') if !defined($uri->auth);
148 $err = "E: <$uri> LOGIN: $@\n";
149 if ($cred && defined($cred->{password})) {
150 $err =~ s/\Q$cred->{password}\E/*******/g;
154 $cred->run($mic ? 'approve' : 'reject') if $cred && $cred->{filled};
156 $lei ? $lei->fail($err) : warn($err);
161 # Net::NNTP doesn't support CAPABILITIES, yet
162 sub try_starttls ($) {
164 return if $host =~ /\.onion\z/s;
165 return if $host =~ /\A127\.[0-9]+\.[0-9]+\.[0-9]+\z/s;
166 return if $host eq '::1';
171 my ($nn_arg, $nntp_cfg, $uri) = @_;
173 if (defined $nn_arg->{ProxyAddr}) {
174 require PublicInbox::NetNNTPSocks;
175 $nn_arg->{SocksDebug} = 1 if $nn_arg->{Debug};
176 eval { $nn = PublicInbox::NetNNTPSocks->new_socks(%$nn_arg) };
177 die "E: <$uri> $@\n" if $@;
179 $nn = Net::NNTP->new(%$nn_arg) or return;
182 # default to using STARTTLS if it's available, but allow
183 # it to be disabled for localhost/VPN users
184 if (!$nn_arg->{SSL} && $nn->can('starttls')) {
185 if (!defined($nntp_cfg->{starttls}) &&
186 try_starttls($nn_arg->{Host})) {
187 # soft fail by default
188 $nn->starttls or warn <<"";
189 W: <$uri> STARTTLS tried and failed (not requested)
191 } elsif ($nntp_cfg->{starttls}) {
192 # hard fail if explicitly configured
193 $nn->starttls or die <<"";
194 E: <$uri> STARTTLS requested and failed
197 } elsif ($nntp_cfg->{starttls}) {
198 $nn->can('starttls') or
199 die "E: <$uri> Net::NNTP too old for STARTTLS\n";
200 $nn->starttls or die <<"";
201 E: <$uri> STARTTLS requested and failed
207 sub nn_for ($$$$) { # nn = Net::NNTP
208 my ($self, $uri, $nn_common, $lei) = @_;
209 my $sec = uri_section($uri);
210 my $nntp_cfg = $self->{cfg_opt}->{$sec} //= {};
211 my $host = $uri->host;
212 # Net::NNTP and Net::Netrc both mishandle `0', so we pass `127.0.0.1'
213 $host = '127.0.0.1' if $host eq '0';
216 if (defined(my $ui = $uri->userinfo)) {
217 require PublicInbox::GitCredential;
220 protocol => $uri->scheme,
222 }, 'PublicInbox::GitCredential';
223 ($u, $p) = split(/:/, $ui, 2);
224 ($cred->{username}, $cred->{password}) = ($u, $p);
225 $p //= $cred->check_netrc($lei);
227 my $common = $nn_common->{$sec} // {};
231 %$common, # may Debug ....
233 $nn_arg->{SSL} = 1 if $uri->secure; # snews == nntps
234 my $sa = $self->{-proxy_cli};
235 %$nn_arg = (%$nn_arg, %$sa) if $sa;
236 my $nn = nn_new($nn_arg, $nntp_cfg, $uri) or
237 die "E: <$uri> new: $@".onion_hint($lei, $uri);
239 $cred->fill($lei) unless defined($p); # may prompt user here
240 if ($nn->authinfo($u, $p)) {
241 push @{$nntp_cfg->{-postconn}}, [ 'authinfo', $u, $p ];
243 warn "E: <$uri> AUTHINFO $u XXXX failed\n";
248 if ($nntp_cfg->{compress}) {
249 # https://rt.cpan.org/Ticket/Display.html?id=129967
250 if ($nn->can('compress')) {
252 push @{$nntp_cfg->{-postconn}}, [ 'compress' ];
254 warn "W: <$uri> COMPRESS failed\n";
257 delete $nntp_cfg->{compress};
259 W: <$uri> COMPRESS not supported by Net::NNTP
260 W: see https://rt.cpan.org/Ticket/Display.html?id=129967 for updates
265 $self->{net_arg}->{$sec} = $nn_arg;
266 $cred->run($nn ? 'approve' : 'reject') if $cred && $cred->{filled};
271 my ($url, $ls_ok) = @_;
272 require PublicInbox::URIimap;
273 my $uri = PublicInbox::URIimap->new($url);
274 $uri && ($ls_ok || $uri->mailbox) ? $uri->canonical : undef;
277 my %IS_NNTP = (news => 1, snews => 1, nntp => 1, nntps => 1);
279 my ($url, $ls_ok) = @_;
280 require PublicInbox::URInntps;
281 my $uri = PublicInbox::URInntps->new($url);
282 $uri && $IS_NNTP{$uri->scheme} && ($ls_ok || $uri->group) ?
283 $uri->canonical : undef;
286 sub cfg_intvl ($$$) {
287 my ($cfg, $key, $url) = @_;
288 my $v = $cfg->urlmatch($key, $url) // return;
289 $v =~ /\A[0-9]+(?:\.[0-9]+)?\z/s and return $v + 0;
290 if (ref($v) eq 'ARRAY') {
291 $v = join(', ', @$v);
292 warn "W: $key has multiple values: $v\nW: $key ignored\n";
294 warn "W: $key=$v is not a numeric value in seconds\n";
299 my ($cfg, $key, $url) = @_;
300 my $orig = $cfg->urlmatch($key, $url) // return;
301 my $bool = $cfg->git_bool($orig);
302 warn "W: $key=$orig for $url is not boolean\n" unless defined($bool);
306 # flesh out common IMAP-specific data structures
307 sub imap_common_init ($;$) {
308 my ($self, $lei) = @_;
309 return unless $self->{imap_order};
310 $self->{quiet} = 1 if $lei && $lei->{opt}->{quiet};
311 eval { require PublicInbox::IMAPClient } or
312 die "Mail::IMAPClient is required for IMAP:\n$@\n";
313 ($lei || eval { require PublicInbox::IMAPTracker }) or
314 die "DBD::SQLite is required for IMAP\n:$@\n";
315 require PublicInbox::URIimap;
316 my $cfg = $self->{pi_cfg} // $lei->_lei_cfg;
317 my $mic_common = {}; # scheme://authority => Mail:IMAPClient arg
318 for my $uri (@{$self->{imap_order}}) {
319 my $sec = uri_section($uri);
321 # knobs directly for Mail::IMAPClient->new
322 for my $k (qw(Starttls Debug Compress Ignoresizeerrors)) {
323 my $bool = cfg_bool($cfg, "imap.$k", $$uri) // next;
324 $mic_common->{$sec}->{$k} = $bool;
326 my $to = cfg_intvl($cfg, 'imap.timeout', $$uri);
327 $mic_common->{$sec}->{Timeout} = $to if $to;
329 # knobs we use ourselves:
330 my $sa = socks_args($cfg->urlmatch('imap.Proxy', $$uri));
331 $self->{cfg_opt}->{$sec}->{-proxy_cfg} = $sa if $sa;
332 for my $k (qw(pollInterval idleInterval)) {
333 $to = cfg_intvl($cfg, "imap.$k", $$uri) // next;
334 $self->{cfg_opt}->{$sec}->{$k} = $to;
336 my $k = 'imap.fetchBatchSize';
337 my $bs = $cfg->urlmatch($k, $$uri) // next;
338 if ($bs =~ /\A([0-9]+)\z/) {
339 $self->{cfg_opt}->{$sec}->{batch_size} = $bs;
341 warn "$k=$bs is not an integer\n";
344 # make sure we can connect and cache the credentials in memory
345 my $mics = {}; # schema://authority => IMAPClient obj
346 for my $orig_uri (@{$self->{imap_order}}) {
347 my $sec = uri_section($orig_uri);
348 my $uri = PublicInbox::URIimap->new("$sec/");
349 my $mic = $mics->{$sec} //=
350 mic_for($self, $uri, $mic_common, $lei) //
351 die "Unable to continue\n";
352 next unless $self->isa('PublicInbox::NetWriter');
353 my $dst = $orig_uri->mailbox // next;
354 next if $mic->exists($dst); # already exists
355 $mic->create($dst) or die "CREATE $dst failed <$orig_uri>: $@";
360 # flesh out common NNTP-specific data structures
361 sub nntp_common_init ($;$) {
362 my ($self, $lei) = @_;
363 return unless $self->{nntp_order};
364 $self->{quiet} = 1 if $lei && $lei->{opt}->{quiet};
365 eval { require Net::NNTP } or
366 die "Net::NNTP is required for NNTP:\n$@\n";
367 ($lei || eval { require PublicInbox::IMAPTracker }) or
368 die "DBD::SQLite is required for NNTP\n:$@\n";
369 my $cfg = $self->{pi_cfg} // $lei->_lei_cfg;
370 my $nn_common = {}; # scheme://authority => Net::NNTP->new arg
371 for my $uri (@{$self->{nntp_order}}) {
372 my $sec = uri_section($uri);
373 my $args = $nn_common->{$sec} //= {};
375 # Debug and Timeout are passed to Net::NNTP->new
376 my $v = cfg_bool($cfg, 'nntp.Debug', $$uri);
377 $args->{Debug} = $v if defined $v;
378 my $to = cfg_intvl($cfg, 'nntp.Timeout', $$uri);
379 $args->{Timeout} = $to if $to;
380 my $sa = socks_args($cfg->urlmatch('nntp.Proxy', $$uri));
381 %$args = (%$args, %$sa) if $sa;
383 # Net::NNTP post-connect commands
384 for my $k (qw(starttls compress)) {
385 $v = cfg_bool($cfg, "nntp.$k", $$uri) // next;
386 $self->{cfg_opt}->{$sec}->{$k} = $v;
389 # -watch internal option
390 for my $k (qw(pollInterval)) {
391 $to = cfg_intvl($cfg, "nntp.$k", $$uri) // next;
392 $self->{cfg_opt}->{$sec}->{$k} = $to;
395 # make sure we can connect and cache the credentials in memory
396 my %nn; # schema://authority => Net::NNTP object
397 for my $uri (@{$self->{nntp_order}}) {
398 my $sec = uri_section($uri);
399 $nn{$sec} //= nn_for($self, $uri, $nn_common, $lei);
401 \%nn; # for optional {nn_cached}
405 my ($self, $arg, $ls_ok) = @_;
407 if ($uri = imap_uri($arg, $ls_ok)) {
408 $_[1] = $$uri; # canonicalized
409 push @{$self->{imap_order}}, $uri;
410 } elsif ($uri = nntp_uri($arg, $ls_ok)) {
411 $_[1] = $$uri; # canonicalized
412 push @{$self->{nntp_order}}, $uri;
414 push @{$self->{unsupported_url}}, $arg;
419 my ($self, $lei) = @_;
420 if (my $u = $self->{unsupported_url}) {
421 return "Unsupported URL(s): @$u";
423 if ($self->{imap_order}) {
424 eval { require PublicInbox::IMAPClient } or
425 die "Mail::IMAPClient is required for IMAP:\n$@\n";
427 if ($self->{nntp_order}) {
428 eval { require Net::NNTP } or
429 die "Net::NNTP is required for NNTP:\n$@\n";
431 my $sa = socks_args($lei ? $lei->{opt}->{proxy} : undef);
432 $self->{-proxy_cli} = $sa if $sa;
436 sub flags2kw ($$$$) {
437 my ($self, $uri, $uid, $flags) = @_;
439 for my $f (split(/ /, $flags)) {
440 if (my $k = $IMAPflags2kw{$f}) {
442 } elsif ($f eq "\\Recent") { # not in JMAP
443 } elsif ($f eq "\\Deleted") { # not in JMAP
445 } elsif ($self->{verbose}) {
446 warn "# unknown IMAP flag $f <$uri/;UID=$uid>\n";
449 @$kw = sort @$kw; # for LeiSearch->kw_changed and UI/UX purposes
453 sub _imap_do_msg ($$$$$) {
454 my ($self, $uri, $uid, $raw, $flags) = @_;
455 # our target audience expects LF-only, save storage
456 $$raw =~ s/\r\n/\n/sg;
457 my $kw = defined($flags) ?
458 (flags2kw($self, $uri, $uid, $flags) // return) : undef;
459 my ($eml_cb, @args) = @{$self->{eml_each}};
460 $eml_cb->($uri, $uid, $kw, PublicInbox::Eml->new($raw), @args);
463 sub run_commit_cb ($) {
465 my $cmt_cb_args = $self->{on_commit} or return;
466 my ($cb, @args) = @$cmt_cb_args;
470 sub itrk_last ($$;$$) {
471 my ($self, $uri, $r_uidval, $mic) = @_;
472 return (undef, undef, $r_uidval) unless $self->{incremental};
473 my ($itrk, $l_uid, $l_uidval);
474 if (defined(my $lms = $self->{-lms_ro})) { # LeiMailSync or 0
475 $uri->uidvalidity($r_uidval) if defined $r_uidval;
477 my $auth = $mic->Authmechanism // '';
478 $uri->auth($auth) if $auth eq 'ANONYMOUS';
479 my $user = $mic->User;
480 $uri->user($user) if defined($user);
483 $l_uid = ($lms && ($x = $lms->location_stats($$uri))) ?
484 $x->{'uid.max'} : undef;
485 # itrk remains undef, lei/store worker writes to
488 $itrk = PublicInbox::IMAPTracker->new($$uri);
489 ($l_uidval, $l_uid) = $itrk->get_last($$uri);
491 ($itrk, $l_uid, $l_uidval //= $r_uidval);
494 # import flags of already-seen messages
495 sub each_old_flags ($$$$) {
496 my ($self, $mic, $uri, $l_uid) = @_;
498 my $sec = uri_section($uri);
499 my $bs = ($self->{cfg_opt}->{$sec}->{batch_size} // 1) * 10000;
500 my ($eml_cb, @args) = @{$self->{eml_each}};
501 $self->{quiet} or warn "# $uri syncing flags 1:$l_uid\n";
502 for (my $n = 1; $n <= $l_uid; $n += $bs) {
504 $end = $l_uid if $end > $l_uid;
505 my $r = $mic->fetch_hash("$n:$end", 'FLAGS');
507 return if $!{EINTR} && $self->{quit};
508 return "E: $uri UID FETCH $n:$end error: $!";
510 while (my ($uid, $per_uid) = each %$r) {
511 my $kw = flags2kw($self, $uri, $uid, $per_uid->{FLAGS})
513 # LeiImport->input_net_cb
514 $eml_cb->($uri, $uid, $kw, undef, @args);
519 # returns true if PERMANENTFLAGS indicates FLAGS of already imported
520 # messages are meaningful
523 return if !defined($perm_fl);
524 for my $f (split(/[ \t]+/, $perm_fl)) {
525 return 1 if $IMAPflags2kw{$f};
530 # may be overridden in NetWriter or Watch
531 sub folder_select { $_[0]->{each_old} ? 'select' : 'examine' }
533 sub _imap_fetch_all ($$$) {
534 my ($self, $mic, $orig_uri) = @_;
535 my $sec = uri_section($orig_uri);
536 my $mbx = $orig_uri->mailbox;
537 $mic->Clear(1); # trim results history
539 # we need to check for mailbox writability to see if we care about
540 # FLAGS from already-imported messages.
541 my $cmd = $self->folder_select;
542 $mic->$cmd($mbx) or return "E: \U$cmd\E $mbx ($sec) failed: $!";
544 my ($r_uidval, $r_uidnext, $perm_fl);
545 for ($mic->Results) {
546 /^\* OK \[PERMANENTFLAGS \(([^\)]*)\)\].*/ and $perm_fl = $1;
547 /^\* OK \[UIDVALIDITY ([0-9]+)\].*/ and $r_uidval = $1;
548 /^\* OK \[UIDNEXT ([0-9]+)\].*/ and $r_uidnext = $1;
550 $r_uidval //= $mic->uidvalidity($mbx) //
551 return "E: $orig_uri cannot get UIDVALIDITY";
552 $r_uidnext //= $mic->uidnext($mbx) //
553 return "E: $orig_uri cannot get UIDNEXT";
554 my $expect = $orig_uri->uidvalidity // $r_uidval;
555 return <<EOF if $expect != $r_uidval;
556 E: $orig_uri UIDVALIDITY mismatch (got $r_uidval)
559 my $uri = $orig_uri->clone;
560 my $single_uid = $uri->uid;
561 my ($itrk, $l_uid, $l_uidval) = itrk_last($self, $uri, $r_uidval, $mic);
562 if (defined($single_uid)) {
563 $itrk = $l_uid = undef;
564 $uri->uid(undef); # for eml_cb
566 return <<EOF if $l_uidval != $r_uidval;
567 E: $uri UIDVALIDITY mismatch
568 E: local=$l_uidval != remote=$r_uidval
570 $uri->uidvalidity($r_uidval);
572 my $r_uid = $r_uidnext - 1;
573 return <<EOF if $l_uid > $r_uid;
574 E: $uri local UID exceeds remote ($l_uid > $r_uid)
575 E: $uri strangely, UIDVALIDLITY matches ($l_uidval)
577 $mic->Uid(1); # the default, we hope
579 my $use_fl = perm_fl_ok($perm_fl);
580 if (!defined($single_uid) && $self->{each_old} && $use_fl) {
581 $err = each_old_flags($self, $mic, $uri, $l_uid);
584 return if $l_uid >= $r_uid; # nothing to do
586 my ($mod, $shard) = @{$self->{shard_info} // []};
587 unless ($self->{quiet}) {
588 my $m = $mod ? " [(UID % $mod) == $shard]" : '';
589 warn "# $uri fetching UID $l_uid:$r_uid$m\n";
591 my $bs = $self->{cfg_opt}->{$sec}->{batch_size} // 1;
592 my $req = $mic->imap4rev1 ? 'BODY.PEEK[]' : 'RFC822.PEEK';
597 # I wish "UID FETCH $START:*" could work, but:
598 # 1) servers do not need to return results in any order
599 # 2) Mail::IMAPClient doesn't offer a streaming API
600 if (defined $single_uid) {
601 $uids = [ $single_uid ];
602 } elsif (!($uids = $mic->search("UID $l_uid:*"))) {
603 return if $!{EINTR} && $self->{quit};
604 return "E: $uri UID SEARCH $l_uid:* error: $!";
606 return if scalar(@$uids) == 0;
608 # RFC 3501 doesn't seem to indicate order of UID SEARCH
609 # responses, so sort it ourselves. Order matters so
610 # IMAPTracker can store the newest UID.
611 @$uids = sort { $a <=> $b } @$uids;
613 # Did we actually get new messages?
614 return if $uids->[0] < $l_uid;
616 $l_uid = $uids->[-1] + 1; # for next search
618 my $n = $self->{max_batch};
620 @$uids = grep { ($_ % $mod) == $shard } @$uids if $mod;
621 while (scalar @$uids) {
622 my @batch = splice(@$uids, 0, $bs);
623 $batch = join(',', @batch);
624 local $0 = "UID:$batch $mbx $sec";
625 my $r = $mic->fetch_hash($batch, $req, 'FLAGS');
626 unless ($r) { # network error?
627 last if $!{EINTR} && $self->{quit};
628 $err = "E: $uri UID FETCH $batch error: $!";
631 for my $uid (@batch) {
632 # messages get deleted, so holes appear
633 my $per_uid = delete $r->{$uid} // next;
634 my $raw = delete($per_uid->{$key}) // next;
635 my $fl = $use_fl ? $per_uid->{FLAGS} : undef;
636 _imap_do_msg($self, $uri, $uid, \$raw, $fl);
638 last if $self->{quit};
640 last if $self->{quit};
642 run_commit_cb($self);
643 $itrk->update_last($r_uidval, $last_uid) if $itrk;
644 } until ($err || $self->{quit} || defined($single_uid));
648 # uses cached auth info prepared by mic_for
650 my ($self, $uri) = @_;
651 my $sec = uri_section($uri);
652 # see if caller saved result of imap_common_init
653 my $cached = $self->{mics_cached};
655 my $mic = $cached->{$sec};
656 return $mic if $mic && $mic->IsConnected;
657 delete $cached->{$sec};
659 my $mic_arg = $self->{net_arg}->{$sec} or
660 die "BUG: no Mail::IMAPClient->new arg for $sec";
661 if (defined(my $cb_name = $mic_arg->{Authcallback})) {
662 if (ref($cb_name) ne 'CODE') {
663 $mic_arg->{Authcallback} = $self->can($cb_name);
666 my $mic = mic_new($self, $mic_arg, $sec, $uri);
667 $cached //= {}; # invalid placeholder if no cache enabled
668 $mic && $mic->IsConnected ? ($cached->{$sec} = $mic) : undef;
672 my ($self, $url, $eml_cb, @args) = @_;
673 my $uri = ref($url) ? $url : PublicInbox::URIimap->new($url);
674 my $sec = uri_section($uri);
675 local $0 = $uri->mailbox." $sec";
676 my $mic = mic_get($self, $uri);
679 local $self->{eml_each} = [ $eml_cb, @args ];
680 $err = _imap_fetch_all($self, $mic, $uri);
682 $err = "E: <$uri> not connected: $!";
684 die $err if $err && $self->{-can_die};
689 # may used cached auth info prepared by nn_for once
691 my ($self, $uri) = @_;
692 my $sec = uri_section($uri);
693 # see if caller saved result of nntp_common_init
694 my $cached = $self->{nn_cached} // {};
696 $nn = delete($cached->{$sec}) and return $nn;
697 my $nn_arg = $self->{net_arg}->{$sec} or
698 die "BUG: no Net::NNTP->new arg for $sec";
699 my $nntp_cfg = $self->{cfg_opt}->{$sec};
700 $nn = nn_new($nn_arg, $nntp_cfg, $uri) or return;
701 if (my $postconn = $nntp_cfg->{-postconn}) {
702 for my $m_arg (@$postconn) {
703 my ($method, @args) = @$m_arg;
704 $nn->$method(@args) and next;
705 die "E: <$uri> $method failed\n";
712 sub _nntp_fetch_all ($$$) {
713 my ($self, $nn, $uri) = @_;
714 my ($group, $num_a, $num_b) = $uri->group;
715 my $sec = uri_section($uri);
716 my ($nr, $beg, $end) = $nn->group($group);
717 unless (defined($nr)) {
718 my $msg = ndump($nn->message);
719 return "E: GROUP $group <$sec> $msg";
722 # IMAPTracker is also used for tracking NNTP, UID == article number
723 # LIST.ACTIVE can get the equivalent of UIDVALIDITY, but that's
724 # expensive. So we assume newsgroups don't change:
725 my ($itrk, $l_art) = itrk_last($self, $uri);
727 # allow users to specify articles to refetch
728 # cf. https://tools.ietf.org/id/draft-gilman-news-url-01.txt
729 # nntp://example.com/inbox.foo/$num_a-$num_b
730 $beg = $num_a if defined($num_a) && $num_a < $beg;
731 $end = $num_b if defined($num_b) && $num_b < $end;
732 if (defined $l_art) {
733 return if $l_art >= $end; # nothing to do
736 my ($err, $art, $last_art, $kw); # kw stays undef, no keywords in NNTP
737 unless ($self->{quiet}) {
738 warn "# $uri fetching ARTICLE $beg..$end\n";
740 my $n = $self->{max_batch};
742 last if $self->{quit};
745 run_commit_cb($self);
746 $itrk->update_last(0, $last_art) if $itrk;
747 $n = $self->{max_batch};
749 my $raw = $nn->article($art);
750 unless (defined($raw)) {
751 my $msg = ndump($nn->message);
752 if ($nn->code == 421) { # pseudo response from Net::Cmd
755 } else { # probably just a deleted message (spam)
760 $raw = join('', @$raw);
761 $raw =~ s/\r\n/\n/sg;
762 my ($eml_cb, @args) = @{$self->{eml_each}};
763 $eml_cb->($uri, $art, $kw, PublicInbox::Eml->new(\$raw), @args);
766 run_commit_cb($self);
767 $itrk->update_last(0, $last_art) if $itrk;
772 my ($self, $url, $eml_cb, @args) = @_;
773 my $uri = ref($url) ? $url : PublicInbox::URInntps->new($url);
774 my $sec = uri_section($uri);
775 local $0 = $uri->group ." $sec";
776 my $nn = nn_get($self, $uri);
777 return if $self->{quit};
780 local $self->{eml_each} = [ $eml_cb, @args ];
781 $err = _nntp_fetch_all($self, $nn, $uri);
783 $err = "E: <$uri> not connected: $!";
785 die $err if $err && $self->{-can_die};
790 sub new { bless {}, shift };
792 # updates $uri with UIDVALIDITY
794 my ($self, $uri) = @_;
795 my $mic = $self->mic_get($uri) or die "E: not connected: $@";
796 my $m = $self->isa('PublicInbox::NetWriter') ? 'select' : 'examine';
797 $mic->$m($uri->mailbox) or return;
799 for ($mic->Results) {
800 /^\* OK \[UIDVALIDITY ([0-9]+)\].*/ or next;
804 $uidval //= $mic->uidvalidity($uri->mailbox) or
805 die "E: failed to get uidvalidity from <$uri>: $@";
806 $uri->uidvalidity($uidval);