# Copyright (C) all contributors # License: AGPL-3.0+ # common reader code for IMAP and NNTP (and maybe JMAP) package PublicInbox::NetReader; use strict; use v5.10.1; use parent qw(Exporter PublicInbox::IPC); use PublicInbox::Eml; use PublicInbox::Config; our %IMAPflags2kw = map {; "\\\u$_" => $_ } qw(seen answered flagged draft); $IMAPflags2kw{'$Forwarded'} = 'forwarded'; # RFC 5550 our @EXPORT = qw(uri_section imap_uri nntp_uri); sub ndump { require Data::Dumper; Data::Dumper->new(\@_)->Useqq(1)->Terse(1)->Dump; } # returns the git config section name, e.g [imap "imaps://user@example.com"] # without the mailbox, so we can share connections between different inboxes sub uri_section ($) { my ($uri) = @_; $uri->scheme . '://' . $uri->authority; } sub socks_args ($) { my ($val) = @_; return if ($val // '') eq ''; if ($val =~ m!\Asocks5h:// (?: \[ ([^\]]+) \] | ([^:/]+) ) (?::([0-9]+))?/*\z!ix) { my ($h, $p) = ($1 // $2, $3 + 0); $h = '127.0.0.1' if $h eq '0'; eval { require IO::Socket::Socks } or die < $h, ProxyPort => $p }; } die "$val not understood (only socks5h:// is supported)\n"; } sub mic_new ($$$$) { my ($self, $mic_arg, $sec, $uri) = @_; my %mic_arg = (%$mic_arg, Keepalive => 1); my $sa = $self->{cfg_opt}->{$sec}->{-proxy_cfg} || $self->{-proxy_cli}; if ($sa) { # this `require' needed for worker[1..Inf], since socks_args # only got called in worker[0] require IO::Socket::Socks; my %opt = (%$sa, Keepalive => 1); $opt{SocksDebug} = 1 if $mic_arg{Debug}; $opt{ConnectAddr} = delete $mic_arg{Server}; $opt{ConnectPort} = delete $mic_arg{Port}; my $s = IO::Socket::Socks->new(%opt) or die "E: <$uri> ".eval('$IO::Socket::Socks::SOCKS_ERROR'); if ($mic_arg->{Ssl}) { # for imaps:// require IO::Socket::SSL; $s = IO::Socket::SSL->start_SSL($s) or die "E: <$uri> ".(IO::Socket::SSL->errstr // ''); } $mic_arg{Socket} = $s; } PublicInbox::IMAPClient->new(%mic_arg); } sub auth_anon_cb { '' }; # for Mail::IMAPClient::Authcallback sub onion_hint ($$) { my ($lei, $uri) = @_; $uri->host =~ /\.onion\z/i or return "\n"; my $t = $uri->isa('PublicInbox::URIimap') ? 'imap' : 'nntp'; my $url = PublicInbox::Config::squote_maybe(uri_section($uri)); my $set_cfg = 'lei config'; if (!$lei) { # public-inbox-watch my $f = PublicInbox::Config::squote_maybe( $ENV{PI_CONFIG} || '~/.public-inbox/config'); $set_cfg = "git config -f $f"; } my $dq = substr($url, 0, 1) eq "'" ? '"' : ''; < "$uri", protocol => $uri->scheme, host => $uri->host, username => $uri->user, password => $uri->password, }, 'PublicInbox::GitCredential'; my $sec = uri_section($uri); my $common = $mic_common->{$sec} // {}; # IMAPClient and Net::Netrc both mishandles `0', so we pass `127.0.0.1' my $host = $cred->{host}; $host = '127.0.0.1' if $host eq '0'; my $mic_arg = { Port => $uri->port, Server => $host, %$common, # may set Starttls, Compress, Debug .... }; $mic_arg->{Ssl} = 1 if $uri->scheme eq 'imaps'; require PublicInbox::IMAPClient; my $mic = mic_new($self, $mic_arg, $sec, $uri); ($mic && $mic->IsConnected) or die "E: <$uri> new: $@".onion_hint($lei, $uri); # default to using STARTTLS if it's available, but allow # it to be disabled since I usually connect to localhost if (!$mic_arg->{Ssl} && !defined($mic_arg->{Starttls}) && $mic->has_capability('STARTTLS') && try_starttls($host) && $mic->can('starttls')) { $mic->starttls or die "E: <$uri> STARTTLS: $@\n"; } # do we even need credentials? if (!defined($cred->{username}) && $mic->has_capability('AUTH=ANONYMOUS')) { $cred = undef; } if ($cred) { my $p = $cred->{password} // $cred->check_netrc($lei); $cred->fill($lei) unless defined($p); # may prompt user here $mic->User($mic_arg->{User} = $cred->{username}); $mic->Password($mic_arg->{Password} = $cred->{password}); } else { # AUTH=ANONYMOUS $mic->Authmechanism($mic_arg->{Authmechanism} = 'ANONYMOUS'); $mic_arg->{Authcallback} = 'auth_anon_cb'; $mic->Authcallback(\&auth_anon_cb); } my $err; if ($mic->login && $mic->IsAuthenticated) { # success! keep IMAPClient->new arg in case we get disconnected $self->{net_arg}->{$sec} = $mic_arg; if ($cred) { $uri->user($cred->{username}) if !defined($uri->user); } elsif ($mic_arg->{Authmechanism} eq 'ANONYMOUS') { $uri->auth('ANONYMOUS') if !defined($uri->auth); } } else { $err = "E: <$uri> LOGIN: $@\n"; if ($cred && defined($cred->{password})) { $err =~ s/\Q$cred->{password}\E/*******/g; } $mic = undef; } $cred->run($mic ? 'approve' : 'reject') if $cred && $cred->{filled}; if ($err) { $lei ? $lei->fail($err) : warn($err); } $mic; } sub nn_new ($$$) { my ($nn_arg, $nntp_cfg, $uri) = @_; my $nn; if (defined $nn_arg->{ProxyAddr}) { require PublicInbox::NetNNTPSocks; $nn_arg->{SocksDebug} = 1 if $nn_arg->{Debug}; eval { $nn = PublicInbox::NetNNTPSocks->new_socks(%$nn_arg) }; die "E: <$uri> $@\n" if $@; } else { $nn = Net::NNTP->new(%$nn_arg) or return; } setsockopt($nn, Socket::SOL_SOCKET(), Socket::SO_KEEPALIVE(), 1); # default to using STARTTLS if it's available, but allow # it to be disabled for localhost/VPN users if (!$nn_arg->{SSL} && $nn->can('starttls')) { if (!defined($nntp_cfg->{starttls}) && try_starttls($nn_arg->{Host})) { # soft fail by default $nn->starttls or warn <<""; W: <$uri> STARTTLS tried and failed (not requested) } elsif ($nntp_cfg->{starttls}) { # hard fail if explicitly configured $nn->starttls or die <<""; E: <$uri> STARTTLS requested and failed } } elsif ($nntp_cfg->{starttls}) { $nn->can('starttls') or die "E: <$uri> Net::NNTP too old for STARTTLS\n"; $nn->starttls or die <<""; E: <$uri> STARTTLS requested and failed } $nn; } sub nn_for ($$$$) { # nn = Net::NNTP my ($self, $uri, $nn_common, $lei) = @_; my $sec = uri_section($uri); my $nntp_cfg = $self->{cfg_opt}->{$sec} //= {}; my $host = $uri->host; # Net::NNTP and Net::Netrc both mishandle `0', so we pass `127.0.0.1' $host = '127.0.0.1' if $host eq '0'; my $cred; my ($u, $p); if (defined(my $ui = $uri->userinfo)) { require PublicInbox::GitCredential; $cred = bless { url => $sec, protocol => $uri->scheme, host => $host, }, 'PublicInbox::GitCredential'; ($u, $p) = split(/:/, $ui, 2); ($cred->{username}, $cred->{password}) = ($u, $p); $p //= $cred->check_netrc($lei); } my $common = $nn_common->{$sec} // {}; my $nn_arg = { Port => $uri->port, Host => $host, %$common, # may Debug .... }; $nn_arg->{SSL} = 1 if $uri->secure; # snews == nntps my $sa = $self->{-proxy_cli}; %$nn_arg = (%$nn_arg, %$sa) if $sa; my $nn = nn_new($nn_arg, $nntp_cfg, $uri) or die "E: <$uri> new: $@".onion_hint($lei, $uri); if ($cred) { $cred->fill($lei) unless defined($p); # may prompt user here if ($nn->authinfo($u, $p)) { push @{$nntp_cfg->{-postconn}}, [ 'authinfo', $u, $p ]; } else { warn "E: <$uri> AUTHINFO $u XXXX failed\n"; $nn = undef; } } if ($nntp_cfg->{compress}) { # https://rt.cpan.org/Ticket/Display.html?id=129967 if ($nn->can('compress')) { if ($nn->compress) { push @{$nntp_cfg->{-postconn}}, [ 'compress' ]; } else { warn "W: <$uri> COMPRESS failed\n"; } } else { delete $nntp_cfg->{compress}; warn <<""; W: <$uri> COMPRESS not supported by Net::NNTP W: see https://rt.cpan.org/Ticket/Display.html?id=129967 for updates } } $self->{net_arg}->{$sec} = $nn_arg; $cred->run($nn ? 'approve' : 'reject') if $cred && $cred->{filled}; $nn; } sub imap_uri { my ($url, $ls_ok) = @_; require PublicInbox::URIimap; my $uri = PublicInbox::URIimap->new($url); $uri && ($ls_ok || $uri->mailbox) ? $uri->canonical : undef; } my %IS_NNTP = (news => 1, snews => 1, nntp => 1, nntps => 1); sub nntp_uri { my ($url, $ls_ok) = @_; require PublicInbox::URInntps; my $uri = PublicInbox::URInntps->new($url); $uri && $IS_NNTP{$uri->scheme} && ($ls_ok || $uri->group) ? $uri->canonical : undef; } sub cfg_intvl ($$$) { my ($cfg, $key, $url) = @_; my $v = $cfg->urlmatch($key, $url) // return; $v =~ /\A[0-9]+(?:\.[0-9]+)?\z/s and return $v + 0; if (ref($v) eq 'ARRAY') { $v = join(', ', @$v); warn "W: $key has multiple values: $v\nW: $key ignored\n"; } else { warn "W: $key=$v is not a numeric value in seconds\n"; } } sub cfg_bool ($$$) { my ($cfg, $key, $url) = @_; my $orig = $cfg->urlmatch($key, $url) // return; my $bool = $cfg->git_bool($orig); warn "W: $key=$orig for $url is not boolean\n" unless defined($bool); $bool; } # flesh out common IMAP-specific data structures sub imap_common_init ($;$) { my ($self, $lei) = @_; return unless $self->{imap_order}; $self->{quiet} = 1 if $lei && $lei->{opt}->{quiet}; eval { require PublicInbox::IMAPClient } or die "Mail::IMAPClient is required for IMAP:\n$@\n"; ($lei || eval { require PublicInbox::IMAPTracker }) or die "DBD::SQLite is required for IMAP\n:$@\n"; require PublicInbox::URIimap; my $cfg = $self->{pi_cfg} // $lei->_lei_cfg; my $mic_common = {}; # scheme://authority => Mail:IMAPClient arg for my $uri (@{$self->{imap_order}}) { my $sec = uri_section($uri); # knobs directly for Mail::IMAPClient->new for my $k (qw(Starttls Debug Compress)) { my $bool = cfg_bool($cfg, "imap.$k", $$uri) // next; $mic_common->{$sec}->{$k} = $bool; } my $to = cfg_intvl($cfg, 'imap.timeout', $$uri); $mic_common->{$sec}->{Timeout} = $to if $to; # knobs we use ourselves: my $sa = socks_args($cfg->urlmatch('imap.Proxy', $$uri)); $self->{cfg_opt}->{$sec}->{-proxy_cfg} = $sa if $sa; for my $k (qw(pollInterval idleInterval)) { $to = cfg_intvl($cfg, "imap.$k", $$uri) // next; $self->{cfg_opt}->{$sec}->{$k} = $to; } my $k = 'imap.fetchBatchSize'; my $bs = $cfg->urlmatch($k, $$uri) // next; if ($bs =~ /\A([0-9]+)\z/ && $bs > 0) { $self->{cfg_opt}->{$sec}->{batch_size} = $bs; } else { warn "$k=$bs is not a positive integer\n"; } } # make sure we can connect and cache the credentials in memory my $mics = {}; # schema://authority => IMAPClient obj for my $orig_uri (@{$self->{imap_order}}) { my $sec = uri_section($orig_uri); my $uri = PublicInbox::URIimap->new("$sec/"); my $mic = $mics->{$sec} //= mic_for($self, $uri, $mic_common, $lei) // die "Unable to continue\n"; next unless $self->isa('PublicInbox::NetWriter'); next if $self->{-skip_creat}; my $dst = $orig_uri->mailbox // next; next if $mic->exists($dst); # already exists $mic->create($dst) or die "CREATE $dst failed <$orig_uri>: $@"; } $mics; } # flesh out common NNTP-specific data structures sub nntp_common_init ($;$) { my ($self, $lei) = @_; return unless $self->{nntp_order}; $self->{quiet} = 1 if $lei && $lei->{opt}->{quiet}; eval { require Net::NNTP } or die "Net::NNTP is required for NNTP:\n$@\n"; ($lei || eval { require PublicInbox::IMAPTracker }) or die "DBD::SQLite is required for NNTP\n:$@\n"; my $cfg = $self->{pi_cfg} // $lei->_lei_cfg; my $nn_common = {}; # scheme://authority => Net::NNTP->new arg for my $uri (@{$self->{nntp_order}}) { my $sec = uri_section($uri); my $args = $nn_common->{$sec} //= {}; # Debug and Timeout are passed to Net::NNTP->new my $v = cfg_bool($cfg, 'nntp.Debug', $$uri); $args->{Debug} = $v if defined $v; my $to = cfg_intvl($cfg, 'nntp.Timeout', $$uri); $args->{Timeout} = $to if $to; my $sa = socks_args($cfg->urlmatch('nntp.Proxy', $$uri)); %$args = (%$args, %$sa) if $sa; # Net::NNTP post-connect commands for my $k (qw(starttls compress)) { $v = cfg_bool($cfg, "nntp.$k", $$uri) // next; $self->{cfg_opt}->{$sec}->{$k} = $v; } # -watch internal option for my $k (qw(pollInterval)) { $to = cfg_intvl($cfg, "nntp.$k", $$uri) // next; $self->{cfg_opt}->{$sec}->{$k} = $to; } } # make sure we can connect and cache the credentials in memory my %nn; # schema://authority => Net::NNTP object for my $uri (@{$self->{nntp_order}}) { my $sec = uri_section($uri); $nn{$sec} //= nn_for($self, $uri, $nn_common, $lei); } \%nn; # for optional {nn_cached} } sub add_url { my ($self, $arg, $ls_ok) = @_; my $uri; if ($uri = imap_uri($arg, $ls_ok)) { $_[1] = $$uri; # canonicalized push @{$self->{imap_order}}, $uri; } elsif ($uri = nntp_uri($arg, $ls_ok)) { $_[1] = $$uri; # canonicalized push @{$self->{nntp_order}}, $uri; } else { push @{$self->{unsupported_url}}, $arg; } } sub errors { my ($self, $lei) = @_; if (my $u = $self->{unsupported_url}) { return "Unsupported URL(s): @$u"; } if ($self->{imap_order}) { eval { require PublicInbox::IMAPClient } or die "Mail::IMAPClient is required for IMAP:\n$@\n"; } if ($self->{nntp_order}) { eval { require Net::NNTP } or die "Net::NNTP is required for NNTP:\n$@\n"; } my $sa = socks_args($lei ? $lei->{opt}->{proxy} : undef); $self->{-proxy_cli} = $sa if $sa; undef; } sub flags2kw ($$$$) { my ($self, $uri, $uid, $flags) = @_; my $kw = []; for my $f (split(/ /, $flags)) { if (my $k = $IMAPflags2kw{$f}) { push @$kw, $k; } elsif ($f eq "\\Recent") { # not in JMAP } elsif ($f eq "\\Deleted") { # not in JMAP return; } elsif ($self->{verbose}) { warn "# unknown IMAP flag $f <$uri/;UID=$uid>\n"; } } @$kw = sort @$kw; # for LeiSearch->kw_changed and UI/UX purposes $kw; } sub _imap_do_msg ($$$$$) { my ($self, $uri, $uid, $raw, $flags) = @_; # our target audience expects LF-only, save storage $$raw =~ s/\r\n/\n/sg; my $kw = defined($flags) ? (flags2kw($self, $uri, $uid, $flags) // return) : undef; my ($eml_cb, @args) = @{$self->{eml_each}}; $eml_cb->($uri, $uid, $kw, PublicInbox::Eml->new($raw), @args); } sub run_commit_cb ($) { my ($self) = @_; my $cmt_cb_args = $self->{on_commit} or return; my ($cb, @args) = @$cmt_cb_args; $cb->(@args); } sub itrk_last ($$;$$) { my ($self, $uri, $r_uidval, $mic) = @_; return (undef, undef, $r_uidval) unless $self->{incremental}; my ($itrk, $l_uid, $l_uidval); if (defined(my $lms = $self->{-lms_rw})) { # LeiMailSync or 0 $uri->uidvalidity($r_uidval) if defined $r_uidval; if ($mic) { my $auth = $mic->Authmechanism // ''; $uri->auth($auth) if $auth eq 'ANONYMOUS'; my $user = $mic->User; $uri->user($user) if defined($user); } my $x; $l_uid = ($lms && ($x = $lms->location_stats($$uri))) ? $x->{'uid.max'} : undef; # itrk remains undef, lei/store worker writes to # mail_sync.sqlite3 } else { $itrk = PublicInbox::IMAPTracker->new($$uri); ($l_uidval, $l_uid) = $itrk->get_last($$uri); } ($itrk, $l_uid, $l_uidval //= $r_uidval); } # import flags of already-seen messages sub each_old_flags ($$$$) { my ($self, $mic, $uri, $l_uid) = @_; $l_uid ||= 1; my $sec = uri_section($uri); my $bs = ($self->{cfg_opt}->{$sec}->{batch_size} // 1) * 10000; my ($eml_cb, @args) = @{$self->{eml_each}}; $self->{quiet} or warn "# $uri syncing flags 1:$l_uid\n"; for (my $n = 1; $n <= $l_uid; $n += $bs) { my $end = $n + $bs; $end = $l_uid if $end > $l_uid; my $r = $mic->fetch_hash("$n:$end", 'FLAGS'); if (!$r) { return if $!{EINTR} && $self->{quit}; return "E: $uri UID FETCH $n:$end error: $!"; } while (my ($uid, $per_uid) = each %$r) { my $kw = flags2kw($self, $uri, $uid, $per_uid->{FLAGS}) // next; # LeiImport->input_net_cb $eml_cb->($uri, $uid, $kw, undef, @args); } } } # returns true if PERMANENTFLAGS indicates FLAGS of already imported # messages are meaningful sub perm_fl_ok ($) { my ($perm_fl) = @_; return if !defined($perm_fl); for my $f (split(/[ \t]+/, $perm_fl)) { return 1 if $IMAPflags2kw{$f}; } undef; } # may be overridden in NetWriter or Watch sub folder_select { $_[0]->{each_old} ? 'select' : 'examine' } sub _imap_fetch_bodies ($$$$) { my ($self, $mic, $uri, $uids) = @_; my $req = $mic->imap4rev1 ? 'BODY.PEEK[]' : 'RFC822.PEEK'; my $key = $req; $key =~ s/\.PEEK//; my $sec = uri_section($uri); my $mbx = $uri->mailbox; my $bs = $self->{cfg_opt}->{$sec}->{batch_size} // 1; my ($last_uid, $err); my $use_fl = $self->{-use_fl}; while (scalar @$uids) { my @batch = splice(@$uids, 0, $bs); my $batch = join(',', @batch); local $0 = "UID:$batch $mbx $sec"; my $r = $mic->fetch_hash($batch, $req, 'FLAGS'); unless ($r) { # network error? last if $!{EINTR} && $self->{quit}; $err = "E: $uri UID FETCH $batch error: $!"; last; } for my $uid (@batch) { # messages get deleted, so holes appear my $per_uid = delete $r->{$uid} // next; my $raw = delete($per_uid->{$key}) // next; my $fl = $use_fl ? $per_uid->{FLAGS} : undef; _imap_do_msg($self, $uri, $uid, \$raw, $fl); $last_uid = $uid; last if $self->{quit}; } last if $self->{quit}; } ($last_uid, $err); } sub _imap_fetch_all ($$$) { my ($self, $mic, $orig_uri) = @_; my $sec = uri_section($orig_uri); my $mbx = $orig_uri->mailbox; $mic->Clear(1); # trim results history # we need to check for mailbox writability to see if we care about # FLAGS from already-imported messages. my $cmd = $self->folder_select; $mic->$cmd($mbx) or return "E: \U$cmd\E $mbx ($sec) failed: $!"; my ($r_uidval, $r_uidnext, $perm_fl); for ($mic->Results) { /^\* OK \[PERMANENTFLAGS \(([^\)]*)\)\].*/ and $perm_fl = $1; /^\* OK \[UIDVALIDITY ([0-9]+)\].*/ and $r_uidval = $1; /^\* OK \[UIDNEXT ([0-9]+)\].*/ and $r_uidnext = $1; } $r_uidval //= $mic->uidvalidity($mbx) // return "E: $orig_uri cannot get UIDVALIDITY"; $r_uidnext //= $mic->uidnext($mbx) // return "E: $orig_uri cannot get UIDNEXT"; my $expect = $orig_uri->uidvalidity // $r_uidval; return <clone; my $single_uid = $uri->uid; my ($itrk, $l_uid, $l_uidval) = itrk_last($self, $uri, $r_uidval, $mic); if (defined($single_uid)) { $itrk = $l_uid = undef; $uri->uid(undef); # for eml_cb } return <uidvalidity($r_uidval); $l_uid //= 0; my $r_uid = $r_uidnext - 1; return < $r_uid; E: $uri local UID exceeds remote ($l_uid > $r_uid) E: $uri strangely, UIDVALIDLITY matches ($l_uidval) EOF $mic->Uid(1); # the default, we hope my $err; my $use_fl = perm_fl_ok($perm_fl); local $self->{-use_fl} = $use_fl; if (!defined($single_uid) && $self->{each_old} && $use_fl) { $err = each_old_flags($self, $mic, $uri, $l_uid); return $err if $err; } return if $l_uid >= $r_uid; # nothing to do $l_uid ||= 1; my ($mod, $shard) = @{$self->{shard_info} // []}; unless ($self->{quiet}) { my $m = $mod ? " [(UID % $mod) == $shard]" : ''; warn "# $uri fetching UID $l_uid:$r_uid$m\n"; } my $fetch_cb = \&_imap_fetch_bodies; do { # I wish "UID FETCH $START:*" could work, but: # 1) servers do not need to return results in any order # 2) Mail::IMAPClient doesn't offer a streaming API my $uids; if (defined $single_uid) { $uids = [ $single_uid ]; } elsif (!($uids = $mic->search("UID $l_uid:*"))) { return if $!{EINTR} && $self->{quit}; return "E: $uri UID SEARCH $l_uid:* error: $!"; } return if scalar(@$uids) == 0; # RFC 3501 doesn't seem to indicate order of UID SEARCH # responses, so sort it ourselves. Order matters so # IMAPTracker can store the newest UID. @$uids = sort { $a <=> $b } @$uids; # Did we actually get new messages? return if $uids->[0] < $l_uid; $l_uid = $uids->[-1] + 1; # for next search @$uids = grep { ($_ % $mod) == $shard } @$uids if $mod; (my $last_uid, $err) = $fetch_cb->($self, $mic, $uri, $uids); run_commit_cb($self); $itrk->update_last($r_uidval, $last_uid) if $itrk; } until ($err || $self->{quit} || defined($single_uid)); $err; } # uses cached auth info prepared by mic_for sub mic_get { my ($self, $uri) = @_; my $sec = uri_section($uri); # see if caller saved result of imap_common_init my $cached = $self->{mics_cached}; if ($cached) { my $mic = $cached->{$sec}; return $mic if $mic && $mic->IsConnected; delete $cached->{$sec}; } my $mic_arg = $self->{net_arg}->{$sec} or die "BUG: no Mail::IMAPClient->new arg for $sec"; if (defined(my $cb_name = $mic_arg->{Authcallback})) { if (ref($cb_name) ne 'CODE') { $mic_arg->{Authcallback} = $self->can($cb_name); } } my $mic = mic_new($self, $mic_arg, $sec, $uri); $cached //= {}; # invalid placeholder if no cache enabled $mic && $mic->IsConnected ? ($cached->{$sec} = $mic) : undef; } sub imap_each { my ($self, $url, $eml_cb, @args) = @_; my $uri = ref($url) ? $url : PublicInbox::URIimap->new($url); my $sec = uri_section($uri); local $0 = $uri->mailbox." $sec"; my $mic = mic_get($self, $uri); my $err; if ($mic) { local $self->{eml_each} = [ $eml_cb, @args ]; $err = _imap_fetch_all($self, $mic, $uri); } else { $err = "E: <$uri> not connected: $!"; } die $err if $err && $self->{-can_die}; warn $err if $err; $mic; } # may used cached auth info prepared by nn_for once sub nn_get { my ($self, $uri) = @_; my $sec = uri_section($uri); # see if caller saved result of nntp_common_init my $cached = $self->{nn_cached} // {}; my $nn; $nn = delete($cached->{$sec}) and return $nn; my $nn_arg = $self->{net_arg}->{$sec} or die "BUG: no Net::NNTP->new arg for $sec"; my $nntp_cfg = $self->{cfg_opt}->{$sec}; $nn = nn_new($nn_arg, $nntp_cfg, $uri) or return; if (my $postconn = $nntp_cfg->{-postconn}) { for my $m_arg (@$postconn) { my ($method, @args) = @$m_arg; $nn->$method(@args) and next; die "E: <$uri> $method failed\n"; return; } } $nn; } sub _nntp_fetch_all ($$$) { my ($self, $nn, $uri) = @_; my ($group, $num_a, $num_b) = $uri->group; my $sec = uri_section($uri); my ($nr, $beg, $end) = $nn->group($group); unless (defined($nr)) { my $msg = ndump($nn->message); return "E: GROUP $group <$sec> $msg"; } (defined($num_a) && defined($num_b) && $num_a > $num_b) and return "E: $uri: backwards range: $num_a > $num_b"; if (defined($num_a)) { # no article numbers in mail_sync.sqlite3 $uri = $uri->clone; $uri->group($group); } # IMAPTracker is also used for tracking NNTP, UID == article number # LIST.ACTIVE can get the equivalent of UIDVALIDITY, but that's # expensive. So we assume newsgroups don't change: my ($itrk, $l_art) = itrk_last($self, $uri); if (defined($l_art) && !defined($num_a)) { return if $l_art >= $end; # nothing to do $beg = $l_art + 1; } # allow users to specify articles to refetch # cf. https://tools.ietf.org/id/draft-gilman-news-url-01.txt # nntp://example.com/inbox.foo/$num_a-$num_b $beg = $num_a if defined($num_a) && $num_a > $beg && $num_a <= $end; $end = $num_b if defined($num_b) && $num_b >= $beg && $num_b < $end; $end = $beg if defined($num_a) && !defined($num_b); my ($err, $art, $last_art, $kw); # kw stays undef, no keywords in NNTP unless ($self->{quiet}) { warn "# $uri fetching ARTICLE $beg..$end\n"; } my $n = $self->{max_batch}; for ($beg..$end) { last if $self->{quit}; $art = $_; if (--$n < 0) { run_commit_cb($self); $itrk->update_last(0, $last_art) if $itrk; $n = $self->{max_batch}; } my $raw = $nn->article($art); unless (defined($raw)) { my $msg = ndump($nn->message); if ($nn->code == 421) { # pseudo response from Net::Cmd $err = "E: $msg"; last; } else { # probably just a deleted message (spam) warn "W: $msg"; next; } } $raw = join('', @$raw); $raw =~ s/\r\n/\n/sg; my ($eml_cb, @args) = @{$self->{eml_each}}; $eml_cb->($uri, $art, $kw, PublicInbox::Eml->new(\$raw), @args); $last_art = $art; } run_commit_cb($self); $itrk->update_last(0, $last_art) if $itrk; $err; } sub nntp_each { my ($self, $url, $eml_cb, @args) = @_; my $uri = ref($url) ? $url : PublicInbox::URInntps->new($url); my $sec = uri_section($uri); local $0 = $uri->group ." $sec"; my $nn = nn_get($self, $uri); return if $self->{quit}; my $err; if ($nn) { local $self->{eml_each} = [ $eml_cb, @args ]; $err = _nntp_fetch_all($self, $nn, $uri); } else { $err = "E: <$uri> not connected: $!"; } die $err if $err && $self->{-can_die}; warn $err if $err; $nn; } sub new { bless {}, shift }; # updates $uri with UIDVALIDITY sub mic_for_folder { my ($self, $uri) = @_; my $mic = $self->mic_get($uri) or die "E: not connected: $@"; my $m = $self->isa('PublicInbox::NetWriter') ? 'select' : 'examine'; $mic->$m($uri->mailbox) or return; my $uidval; for ($mic->Results) { /^\* OK \[UIDVALIDITY ([0-9]+)\].*/ or next; $uidval = $1; last; } $uidval //= $mic->uidvalidity($uri->mailbox) or die "E: failed to get uidvalidity from <$uri>: $@"; $uri->uidvalidity($uidval); $mic; } 1;