1 package PVE
::APIServer
::AnyEvent
;
5 use Time
::HiRes
qw(usleep ualarm gettimeofday tv_interval);
6 use Socket
qw(IPPROTO_TCP TCP_NODELAY SOMAXCONN);
7 use POSIX
qw(strftime EINTR EAGAIN);
14 # use AnyEvent::Strict; # only use this for debugging
15 use AnyEvent
::Util
qw(guard fh_nonblocking WSAEWOULDBLOCK WSAEINPROGRESS);
27 use PVE
::APIServer
::Formatter
;
32 use HTTP
::Status
qw(:constants);
39 my $limit_max_headers = 30;
40 my $limit_max_header_size = 8*1024;
41 my $limit_max_post = 16*1024;
50 my $split_abs_uri = sub {
51 my ($abs_uri, $base_uri) = @_;
53 my ($format, $rel_uri) = $abs_uri =~ m/^\Q$base_uri\E\/+([a-z
][a-z0-9
]+)(\
/.*)?$/;
54 $rel_uri = '/' if !$rel_uri;
56 return wantarray ?
($rel_uri, $format) : $rel_uri;
60 my ($self, $reqstate) = @_;
62 my $loginfo = $reqstate->{log};
64 # like apache2 common log format
65 # LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\""
67 return if $loginfo->{written
}; # avoid duplicate logs
68 $loginfo->{written
} = 1;
70 my $peerip = $reqstate->{peer_host
} || '-';
71 my $userid = $loginfo->{userid
} || '-';
72 my $content_length = defined($loginfo->{content_length
}) ?
$loginfo->{content_length
} : '-';
73 my $code = $loginfo->{code
} || 500;
74 my $requestline = $loginfo->{requestline
} || '-';
75 my $timestr = strftime
("%d/%b/%Y:%H:%M:%S %z", localtime());
77 my $msg = "$peerip - $userid [$timestr] \"$requestline\" $code $content_length\n";
79 $self->write_log($msg);
82 sub log_aborted_request {
83 my ($self, $reqstate, $error) = @_;
85 my $r = $reqstate->{request};
86 return if !$r; # no active request
89 syslog("err
", "problem with client
$reqstate->{peer_host
}; $error");
92 $self->log_request($reqstate);
95 sub cleanup_reqstate {
98 delete $reqstate->{log};
99 delete $reqstate->{request};
100 delete $reqstate->{proto};
101 delete $reqstate->{accept_gzip};
102 delete $reqstate->{starttime};
104 if ($reqstate->{tmpfilename}) {
105 unlink $reqstate->{tmpfilename};
106 delete $reqstate->{tmpfilename};
110 sub client_do_disconnect {
111 my ($self, $reqstate) = @_;
113 cleanup_reqstate($reqstate);
115 my $shutdown_hdl = sub {
118 shutdown($hdl->{fh}, 1);
120 $hdl->on_drain(undef);
121 $hdl->on_read(undef);
125 if (my $proxyhdl = delete $reqstate->{proxyhdl}) {
126 &$shutdown_hdl($proxyhdl);
129 my $hdl = delete $reqstate->{hdl};
132 syslog('err', "detected empty handle
");
136 print "close connection
$hdl\n" if $self->{debug};
138 &$shutdown_hdl($hdl);
140 $self->{conn_count}--;
142 print "$$: CLOSE FH
" . $hdl->{fh}->fileno() . " CONN
$self->{conn_count
}\n" if $self->{debug};
145 sub finish_response {
146 my ($self, $reqstate) = @_;
148 my $hdl = $reqstate->{hdl};
150 cleanup_reqstate($reqstate);
152 if (!$self->{end_loop} && $reqstate->{keep_alive} > 0) {
153 # print "KEEPALIVE
$reqstate->{keep_alive
}\n" if $self->{debug};
155 eval { $self->push_request_header($reqstate); };
159 $hdl->on_drain (sub {
161 $self->client_do_disconnect($reqstate);
169 my ($self, $reqstate, $resp, $mtime, $nocomp, $delay) = @_;
171 #print "$$: send response
: " . Dumper($resp);
174 $reqstate->{hdl}->timeout_reset();
175 $reqstate->{hdl}->timeout($self->{timeout});
177 $nocomp = 1 if !$reqstate->{accept_gzip};
179 my $code = $resp->code;
180 my $msg = $resp->message || HTTP::Status::status_message($code);
181 ($msg) = $msg =~m/^(.*)$/m;
182 my $content = $resp->content;
184 if ($code =~ /^(1\d\d|[23]04)$/) {
185 # make sure content we have no content
189 $reqstate->{keep_alive} = 0 if ($code >= 400) || $self->{end_loop};
191 $reqstate->{log}->{code} = $code;
193 my $proto = $reqstate->{proto} ? $reqstate->{proto}->{str} : 'HTTP/1.0';
194 my $res = "$proto $code $msg\015\012";
197 my $date = HTTP::Date::time2str($ctime);
198 $resp->header('Date' => $date);
200 $resp->header('Last-Modified' => HTTP::Date::time2str($mtime));
202 $resp->header('Expires' => $date);
203 $resp->header('Cache-Control' => "max-age
=0");
204 $resp->header("Pragma
", "no-cache
");
207 $resp->header('Server' => "pve-api-daemon
/3.0");
212 $content_length = length($content);
214 if (!$nocomp && ($content_length > 1024)) {
215 my $comp = Compress::Zlib::memGzip($content);
216 $resp->header('Content-Encoding', 'gzip');
218 $content_length = length($content);
220 $resp->header("Content-Length
" => $content_length);
221 $reqstate->{log}->{content_length} = $content_length;
224 $resp->remove_header("Content-Length
");
227 if ($reqstate->{keep_alive} > 0) {
228 $resp->push_header('Connection' => 'Keep-Alive');
230 $resp->header('Connection' => 'close');
233 $res .= $resp->headers_as_string("\015\012");
234 #print "SEND
(without content
) $res\n" if $self->{debug};
237 $res .= $content if $content;
239 $self->log_request($reqstate, $reqstate->{request});
241 if ($delay && $delay > 0) {
242 my $w; $w = AnyEvent->timer(after => $delay, cb => sub {
243 undef $w; # delete reference
244 $reqstate->{hdl}->push_write($res);
245 $self->finish_response($reqstate);
248 $reqstate->{hdl}->push_write($res);
249 $self->finish_response($reqstate);
254 my ($self, $reqstate, $code, $msg, $hdr, $content) = @_;
257 my $resp = HTTP::Response->new($code, $msg, $hdr, $content);
258 $self->response($reqstate, $resp);
263 my $file_extension_info = {
264 css => { ct => 'text/css' },
265 html => { ct => 'text/html' },
266 js => { ct => 'application/javascript' },
267 png => { ct => 'image/png' , nocomp => 1 },
268 ico => { ct => 'image/x-icon', nocomp => 1},
269 gif => { ct => 'image/gif', nocomp => 1},
270 jar => { ct => 'application/java-archive', nocomp => 1},
271 woff => { ct => 'application/font-woff', nocomp => 1},
272 woff2 => { ct => 'application/font-woff2', nocomp => 1},
273 ttf => { ct => 'application/font-snft', nocomp => 1},
274 pdf => { ct => 'application/pdf', nocomp => 1},
275 epub => { ct => 'application/epub+zip', nocomp => 1},
278 sub send_file_start {
279 my ($self, $reqstate, $filename) = @_;
282 # print "SEND FILE
$filename\n";
283 # Note: aio_load() this is not really async unless we use IO::AIO!
286 my $r = $reqstate->{request};
288 my $fh = IO::File->new($filename, '<') ||
290 my $stat = File::stat::stat($fh) ||
293 my $mtime = $stat->mtime;
295 if (my $ifmod = $r->header('if-modified-since')) {
296 my $iftime = HTTP::Date::str2time($ifmod);
297 if ($mtime <= $iftime) {
298 my $resp = HTTP::Response->new(304, "NOT MODIFIED
");
299 $self->response($reqstate, $resp, $mtime);
305 my $len = sysread($fh, $data, $stat->size);
306 die "got short file
\n" if !defined($len) || $len != $stat->size;
308 my ($ext) = $filename =~ m/\.([^.]*)$/;
309 my $ext_info = $file_extension_info->{$ext};
311 die "unable to detect content type
" if !$ext_info;
313 my $header = HTTP::Headers->new(Content_Type => $ext_info->{ct});
314 my $resp = HTTP::Response->new(200, "OK
", $header, $data);
315 $self->response($reqstate, $resp, $mtime, $ext_info->{nocomp});
318 $self->error($reqstate, 501, $err);
325 sub websocket_proxy {
326 my ($self, $reqstate, $wsaccept, $wsproto, $param) = @_;
332 my $max_payload_size = 65536;
335 if ($wsproto eq 'binary') {
337 } elsif ($wsproto eq 'base64') {
340 die "websocket_proxy
: unsupported protocol
'$wsproto'\n";
343 if ($param->{port}) {
344 $remhost = 'localhost';
345 $remport = $param->{port};
346 } elsif ($param->{socket}) {
348 $remport = $param->{socket};
350 die "websocket_proxy
: missing port
or socket\n";
353 tcp_connect $remhost, $remport, sub {
355 or die "connect to
'$remhost:$remport' failed
: $!";
357 print "$$: CONNECTed to
'$remhost:$remport'\n" if $self->{debug};
359 $reqstate->{proxyhdl} = AnyEvent::Handle->new(
362 wbuf_max => 64*10*1024,
367 $self->log_aborted_request($reqstate);
368 $self->client_do_disconnect($reqstate);
370 if (my $err = $@) { syslog('err', $err); }
373 my ($hdl, $fatal, $message) = @_;
375 $self->log_aborted_request($reqstate, $message);
376 $self->client_do_disconnect($reqstate);
378 if (my $err = $@) { syslog('err', "$err"); }
381 my $proxyhdlreader = sub {
384 my $len = length($hdl->{rbuf});
385 my $data = substr($hdl->{rbuf}, 0, $len, '');
391 $string = "\x82"; # binary frame
394 $string = "\x81"; # text frame
395 $payload = encode_base64($data, '');
398 my $payload_len = length($payload);
399 if ($payload_len <= 125) {
400 $string .= pack 'C', $payload_len;
401 } elsif ($payload_len <= 0xffff) {
402 $string .= pack 'C', 126;
403 $string .= pack 'n', $payload_len;
405 $string .= pack 'C', 127;
406 $string .= pack 'Q>', $payload_len;
410 $reqstate->{hdl}->push_write($string) if $reqstate->{hdl};
413 my $hdlreader = sub {
416 my $len = length($hdl->{rbuf});
419 my $hdr = unpack('C', substr($hdl->{rbuf}, 0, 1));
420 my $opcode = $hdr & 0b00001111;
421 my $fin = $hdr & 0b10000000;
423 die "received fragmented websocket frame
\n" if !$fin;
425 my $rsv = $hdr & 0b01110000;
426 die "received websocket frame with RSV flags
\n" if $rsv;
428 my $payload_len = unpack 'C', substr($hdl->{rbuf}, 1, 1);
430 my $masked = $payload_len & 0b10000000;
431 die "received unmasked websocket frame from client
\n" if !$masked;
434 $payload_len = $payload_len & 0b01111111;
435 if ($payload_len == 126) {
437 $payload_len = unpack('n', substr($hdl->{rbuf}, $offset, 2));
439 } elsif ($payload_len == 127) {
441 $payload_len = unpack('Q>', substr($hdl->{rbuf}, $offset, 8));
445 die "received too large websocket frame
(len
= $payload_len)\n"
446 if ($payload_len > $max_payload_size) || ($payload_len < 0);
448 return if $len < ($offset + 4 + $payload_len);
450 my $data = substr($hdl->{rbuf}, 0, $len, ''); # now consume data
452 my @mask = (unpack('C', substr($data, $offset+0, 1)),
453 unpack('C', substr($data, $offset+1, 1)),
454 unpack('C', substr($data, $offset+2, 1)),
455 unpack('C', substr($data, $offset+3, 1)));
459 my $payload = substr($data, $offset, $payload_len);
461 for (my $i = 0; $i < $payload_len; $i++) {
462 my $d = unpack('C', substr($payload, $i, 1));
463 my $n = $d ^ $mask[$i % 4];
464 substr($payload, $i, 1, pack('C', $n));
467 $payload = decode_base64($payload) if !$binary;
469 if ($opcode == 1 || $opcode == 2) {
470 $reqstate->{proxyhdl}->push_write($payload) if $reqstate->{proxyhdl};
471 } elsif ($opcode == 8) {
472 print "websocket received
close\n" if $self->{debug};
473 if ($reqstate->{proxyhdl}) {
474 $reqstate->{proxyhdl}->push_write($payload);
475 $reqstate->{proxyhdl}->push_shutdown();
477 $hdl->push_shutdown();
479 die "received unhandled websocket opcode
$opcode\n";
483 my $proto = $reqstate->{proto} ? $reqstate->{proto}->{str} : 'HTTP/1.1';
485 $reqstate->{proxyhdl}->timeout(0);
486 $reqstate->{proxyhdl}->on_read($proxyhdlreader);
487 $reqstate->{hdl}->on_read($hdlreader);
489 # todo: use stop_read/start_read if write buffer grows to much
491 my $res = "$proto 101 Switching Protocols
\015\012" .
492 "Upgrade
: websocket
\015\012" .
493 "Connection
: upgrade
\015\012" .
494 "Sec-WebSocket-Accept
: $wsaccept\015\012" .
495 "Sec-WebSocket-Protocol
: $wsproto\015\012" .
498 print $res if $self->{debug};
500 $reqstate->{hdl}->push_write($res);
503 $reqstate->{log}->{code} = 101;
504 $self->log_request($reqstate);
510 $self->log_aborted_request($reqstate, $err);
511 $self->client_do_disconnect($reqstate);
516 my ($self, $reqstate, $clientip, $host, $node, $method, $uri, $ticket, $token, $params) = @_;
521 if ($host eq 'localhost') {
522 $target = "http
://$host:85$uri";
523 # keep alive for localhost is not worth (connection setup is about 0.2ms)
525 } elsif (Net::IP::ip_is_ipv6($host)) {
526 $target = "https
://[$host]:8006$uri";
528 $target = "https
://$host:8006$uri";
532 PVEDisableProxy => 'true',
533 PVEClientIP => $clientip,
536 $headers->{'cookie'} = PVE::APIServer::Formatter::create_auth_cookie($ticket, $self->{cookie_name}) if $ticket;
537 $headers->{'CSRFPreventionToken'} = $token if $token;
538 $headers->{'Accept-Encoding'} = 'gzip' if $reqstate->{accept_gzip};
542 if ($method eq 'POST' || $method eq 'PUT') {
543 $headers->{'Content-Type'} = 'application/x-www-form-urlencoded';
544 # use URI object to format application/x-www-form-urlencoded content.
545 my $url = URI->new('http:');
546 $url->query_form(%$params);
547 $content = $url->query;
548 if (defined($content)) {
549 $headers->{'Content-Length'} = length($content);
554 # TLS 1.x only, with certificate pinning
560 my (undef, undef, undef, $depth, undef, undef, $cert) = @_;
561 # we don't care about intermediate or root certificates
562 return 1 if $depth != 0;
563 # check server certificate against cache of pinned FPs
564 return $self->check_cert_fingerprint($cert);
568 # load and cache cert fingerprint if first time we proxy to this node
569 $self->initialize_cert_cache($node);
571 my $w; $w = http_request(
576 proxy => undef, # avoid use of $ENV{HTTP_PROXY}
577 keepalive => $keep_alive,
579 tls_ctx => AnyEvent::TLS->new(%{$tls}),
581 my ($body, $hdr) = @_;
585 if (!$reqstate->{hdl}) {
586 warn "proxy detected vanished client connection
\n";
591 my $code = delete $hdr->{Status};
592 my $msg = delete $hdr->{Reason};
594 delete $hdr->{HTTPVersion};
595 my $header = HTTP::Headers->new(%$hdr);
596 if (my $location = $header->header('Location')) {
597 $location =~ s|^http://localhost:85||;
598 $header->header(Location => $location);
600 my $resp = HTTP::Response->new($code, $msg, $header, $body);
601 # Note: disable compression, because body is already compressed
602 $self->response($reqstate, $resp, undef, 1);
610 # return arrays as \0 separated strings (like CGI.pm)
611 sub decode_urlencoded {
616 return $res if !$data;
618 foreach my $kv (split(/[\&\;]/, $data)) {
619 my ($k, $v) = split(/=/, $kv);
621 $k =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr(hex($1))/eg;
623 $v =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr(hex($1))/eg;
625 if (defined(my $old = $res->{$k})) {
626 $res->{$k} = "$old\0$v";
635 my ($r, $method) = @_;
639 if ($method eq 'PUT' || $method eq 'POST') {
640 $params = decode_urlencoded($r->content);
643 my $query_params = decode_urlencoded($r->url->query());
645 foreach my $k (keys %{$query_params}) {
646 $params->{$k} = $query_params->{$k};
649 return PVE::Tools::decode_utf8_parameters($params);
652 sub handle_api2_request {
653 my ($self, $reqstate, $auth, $method, $path, $upload_state) = @_;
656 my $r = $reqstate->{request};
658 my ($rel_uri, $format) = &$split_abs_uri($path, $self->{base_uri});
660 my $formatter = PVE::APIServer::Formatter::get_formatter($format, $method, $rel_uri);
662 if (!defined($formatter)) {
663 $self->error($reqstate, HTTP_NOT_IMPLEMENTED, "no such uri
$rel_uri, $format");
667 #print Dumper($upload_state) if $upload_state;
669 my $rpcenv = $self->{rpcenv};
674 $params = $upload_state->{params};
676 $params = extract_params($r, $method);
679 delete $params->{_dc}; # remove disable cache parameter
681 my $clientip = $reqstate->{peer_host};
683 $rpcenv->init_request();
685 my $res = $self->rest_handler($clientip, $method, $rel_uri, $auth, $params);
687 AnyEvent->now_update(); # in case somebody called sleep()
689 $rpcenv->set_user(undef); # clear after request
691 my $upgrade = $r->header('upgrade');
692 $upgrade = lc($upgrade) if $upgrade;
694 if (my $host = $res->{proxy}) {
696 if ($self->{trusted_env}) {
697 $self->error($reqstate, HTTP_INTERNAL_SERVER_ERROR, "proxy
not allowed
");
701 if ($host ne 'localhost' && $r->header('PVEDisableProxy')) {
702 $self->error($reqstate, HTTP_INTERNAL_SERVER_ERROR, "proxy
loop detected
");
706 $res->{proxy_params}->{tmpfilename} = $reqstate->{tmpfilename} if $upload_state;
708 $self->proxy_request($reqstate, $clientip, $host, $res->{proxynode}, $method,
709 $r->uri, $auth->{ticket}, $auth->{token}, $res->{proxy_params}, $res->{proxynode});
712 } elsif ($upgrade && ($method eq 'GET') && ($path =~ m|websocket$|)) {
713 die "unable to upgrade to protocol
'$upgrade'\n" if !$upgrade || ($upgrade ne 'websocket');
714 my $wsver = $r->header('sec-websocket-version');
715 die "unsupported websocket-version
'$wsver'\n" if !$wsver || ($wsver ne '13');
716 my $wsproto_str = $r->header('sec-websocket-protocol');
717 die "missing websocket-protocol header
" if !$wsproto_str;
719 foreach my $p (PVE::Tools::split_list($wsproto_str)) {
720 $wsproto = $p if !$wsproto && $p eq 'base64';
721 $wsproto = $p if $p eq 'binary';
723 die "unsupported websocket-protocol protocol
'$wsproto_str'\n" if !$wsproto;
724 my $wskey = $r->header('sec-websocket-key');
725 die "missing websocket-key
\n" if !$wskey;
726 # Note: Digest::SHA::sha1_base64 has wrong padding
727 my $wsaccept = Digest::SHA::sha1_base64("${wskey
}258EAFA5-E914-47DA-95CA-C5AB0DC85B11
") . "=";
728 if ($res->{status} == HTTP_OK) {
729 $self->websocket_proxy($reqstate, $wsaccept, $wsproto, $res->{data});
735 if ($res->{status} == HTTP_UNAUTHORIZED) {
736 # always delay unauthorized calls by 3 seconds
737 $delay = 3 - tv_interval($reqstate->{starttime});
738 $delay = 0 if $delay < 0;
741 my $csrfgen_func = $self->can('generate_csrf_prevention_token');
742 my ($raw, $ct, $nocomp) = &$formatter($res, $res->{data}, $params, $path, $auth, $csrfgen_func);
745 if (ref($raw) && (ref($raw) eq 'HTTP::Response')) {
748 $resp = HTTP::Response->new($res->{status}, $res->{message});
749 $resp->header("Content-Type
" => $ct);
750 $resp->content($raw);
752 $self->response($reqstate, $resp, undef, $nocomp, $delay);
755 $self->error($reqstate, 501, $err);
759 sub handle_spice_proxy_request {
760 my ($self, $reqstate, $connect_str, $vmid, $node, $spiceport) = @_;
764 die "Port
$spiceport is not allowed
" if ($spiceport < 61000 || $spiceport > 61099);
766 my $rpcenv = $self->{rpcenv};
767 $rpcenv->init_request();
769 my $clientip = $reqstate->{peer_host};
770 my $r = $reqstate->{request};
774 if ($node ne 'localhost' && PVE::INotify::nodename() !~ m/^$node$/i) {
775 $remip = $self->remote_node_ip($node);
776 print "REMOTE CONNECT
$vmid, $remip, $connect_str\n" if $self->{debug};
778 print "$$: CONNECT
$vmid, $node, $spiceport\n" if $self->{debug};
781 if ($remip && $r->header('PVEDisableProxy')) {
782 $self->error($reqstate, HTTP_INTERNAL_SERVER_ERROR, "proxy
loop detected
");
786 $reqstate->{hdl}->timeout(0);
787 $reqstate->{hdl}->wbuf_max(64*10*1024);
789 my $remhost = $remip ? $remip : "localhost
";
790 my $remport = $remip ? 3128 : $spiceport;
792 tcp_connect $remhost, $remport, sub {
794 or die "connect to
'$remhost:$remport' failed
: $!";
796 print "$$: CONNECTed to
'$remhost:$remport'\n" if $self->{debug};
797 $reqstate->{proxyhdl} = AnyEvent::Handle->new(
800 wbuf_max => 64*10*1024,
805 $self->log_aborted_request($reqstate);
806 $self->client_do_disconnect($reqstate);
808 if (my $err = $@) { syslog('err', $err); }
811 my ($hdl, $fatal, $message) = @_;
813 $self->log_aborted_request($reqstate, $message);
814 $self->client_do_disconnect($reqstate);
816 if (my $err = $@) { syslog('err', "$err"); }
820 my $proxyhdlreader = sub {
823 my $len = length($hdl->{rbuf});
824 my $data = substr($hdl->{rbuf}, 0, $len, '');
826 #print "READ1
$len\n";
827 $reqstate->{hdl}->push_write($data) if $reqstate->{hdl};
830 my $hdlreader = sub {
833 my $len = length($hdl->{rbuf});
834 my $data = substr($hdl->{rbuf}, 0, $len, '');
836 #print "READ0
$len\n";
837 $reqstate->{proxyhdl}->push_write($data) if $reqstate->{proxyhdl};
840 my $proto = $reqstate->{proto} ? $reqstate->{proto}->{str} : 'HTTP/1.0';
842 my $startproxy = sub {
843 $reqstate->{proxyhdl}->timeout(0);
844 $reqstate->{proxyhdl}->on_read($proxyhdlreader);
845 $reqstate->{hdl}->on_read($hdlreader);
847 # todo: use stop_read/start_read if write buffer grows to much
849 my $res = "$proto 200 OK
\015\012"; # hope this is the right answer?
850 $reqstate->{hdl}->push_write($res);
853 $reqstate->{log}->{code} = 200;
854 $self->log_request($reqstate);
858 my $header = "CONNECT
${connect_str
} $proto\015\012" .
859 "Host
: ${connect_str
}\015\012" .
860 "Proxy-Connection
: keep-alive
\015\012" .
861 "User-Agent
: spiceproxy
\015\012" .
862 "PVEDisableProxy
: true
\015\012" .
863 "PVEClientIP
: $clientip\015\012" .
866 $reqstate->{proxyhdl}->push_write($header);
867 $reqstate->{proxyhdl}->push_read(line => sub {
868 my ($hdl, $line) = @_;
870 if ($line =~ m!^$proto 200 OK$!) {
873 $reqstate->{hdl}->push_write($line);
874 $self->client_do_disconnect($reqstate);
885 $self->log_aborted_request($reqstate, $err);
886 $self->client_do_disconnect($reqstate);
891 my ($self, $reqstate, $auth, $method, $path) = @_;
893 my $base_uri = $self->{base_uri};
896 my $r = $reqstate->{request};
898 # disable timeout on handle (we already have all data we need)
899 # we re-enable timeout in response()
900 $reqstate->{hdl}->timeout(0);
902 if ($path =~ m/^\Q$base_uri\E/) {
903 $self->handle_api2_request($reqstate, $auth, $method, $path);
907 if ($self->{pages} && ($method eq 'GET') && (my $handler = $self->{pages}->{$path})) {
908 if (ref($handler) eq 'CODE') {
909 my $params = decode_urlencoded($r->url->query());
910 my ($resp, $userid) = &$handler($self, $reqstate->{request}, $params);
911 $self->response($reqstate, $resp);
912 } elsif (ref($handler) eq 'HASH') {
913 if (my $filename = $handler->{file}) {
914 my $fh = IO::File->new($filename) ||
915 die "unable to
open file
'$filename' - $!\n";
916 send_file_start($self, $reqstate, $filename);
918 die "internal error
- no handler
";
921 die "internal error
- no handler
";
926 if ($self->{dirs} && ($method eq 'GET')) {
927 # we only allow simple names
928 if ($path =~ m!^(/\S+/)([a-zA-Z0-9\-\_\.]+)$!) {
929 my ($subdir, $file) = ($1, $2);
930 if (my $dir = $self->{dirs}->{$subdir}) {
931 my $filename = "$dir$file";
932 my $fh = IO::File->new($filename) ||
933 die "unable to
open file
'$filename' - $!\n";
934 send_file_start($self, $reqstate, $filename);
940 die "no such file
'$path'";
943 $self->error($reqstate, 501, $err);
947 sub file_upload_multipart {
948 my ($self, $reqstate, $auth, $method, $path, $rstate) = @_;
951 my $boundary = $rstate->{boundary};
952 my $hdl = $reqstate->{hdl};
954 my $startlen = length($hdl->{rbuf});
956 if ($rstate->{phase} == 0) { # skip everything until start
957 if ($hdl->{rbuf} =~ s/^.*?--\Q$boundary\E \015?\012
958 ((?:[^\015]+\015\012)* ) \015?\012//xs) {
960 my ($ct, $disp, $name, $filename);
961 foreach my $line (split(/\015?\012/, $header)) {
962 # assume we have single line headers
963 if ($line =~ m/^Content-Type\s*:\s*(.*)/i) {
964 $ct = parse_content_type($1);
965 } elsif ($line =~ m/^Content-Disposition\s*:\s*(.*)/i) {
966 ($disp, $name, $filename) = parse_content_disposition($1);
970 if (!($disp && $disp eq 'form-data' && $name)) {
971 syslog('err', "wrong content disposition
in multipart
- abort upload
");
972 $rstate->{phase} = -1;
975 $rstate->{fieldname} = $name;
978 if ($name eq 'filename') {
979 # found file upload data
980 $rstate->{phase} = 1;
981 $rstate->{filename} = $filename;
983 syslog('err', "wrong field name
for file upload
- abort upload
");
984 $rstate->{phase} = -1;
987 # found form data for field $name
988 $rstate->{phase} = 2;
992 my $len = length($hdl->{rbuf});
993 substr($hdl->{rbuf}, 0, $len - $rstate->{maxheader}, '')
994 if $len > $rstate->{maxheader}; # skip garbage
996 } elsif ($rstate->{phase} == 1) { # inside file - dump until end marker
997 if ($hdl->{rbuf} =~ s/^(.*?)\015?\012(--\Q$boundary\E(--)? \015?\012(.*))$/$2/xs) {
998 my ($rest, $eof) = ($1, $3);
999 my $len = length($rest);
1000 die "write to temporary file failed
- $!"
1001 if syswrite($rstate->{outfh}, $rest) != $len;
1002 $rstate->{ctx}->add($rest);
1003 $rstate->{params}->{filename} = $rstate->{filename};
1004 $rstate->{md5sum} = $rstate->{ctx}->hexdigest;
1005 $rstate->{bytes} += $len;
1006 $rstate->{phase} = $eof ? 100 : 0;
1008 my $len = length($hdl->{rbuf});
1009 my $wlen = $len - $rstate->{boundlen};
1011 my $data = substr($hdl->{rbuf}, 0, $wlen, '');
1012 die "write to temporary file failed
- $!"
1013 if syswrite($rstate->{outfh}, $data) != $wlen;
1014 $rstate->{bytes} += $wlen;
1015 $rstate->{ctx}->add($data);
1018 } elsif ($rstate->{phase} == 2) { # inside normal field
1020 if ($hdl->{rbuf} =~ s/^(.*?)\015?\012(--\Q$boundary\E(--)? \015?\012(.*))$/$2/xs) {
1021 my ($rest, $eof) = ($1, $3);
1022 my $len = length($rest);
1023 $rstate->{post_size} += $len;
1024 if ($rstate->{post_size} < $limit_max_post) {
1025 $rstate->{params}->{$rstate->{fieldname}} = $rest;
1026 $rstate->{phase} = $eof ? 100 : 0;
1028 syslog('err', "form data to large
- abort upload
");
1029 $rstate->{phase} = -1; # skip
1033 my $len = length($hdl->{rbuf});
1034 substr($hdl->{rbuf}, 0, $len, ''); # empty rbuf
1037 $rstate->{read} += ($startlen - length($hdl->{rbuf}));
1039 if (!$rstate->{done} && ($rstate->{read} + length($hdl->{rbuf})) >= $rstate->{size}) {
1040 $rstate->{done} = 1; # make sure we dont get called twice
1041 if ($rstate->{phase} < 0 || !$rstate->{md5sum}) {
1042 die "upload failed
\n";
1044 my $elapsed = tv_interval($rstate->{starttime});
1046 my $rate = int($rstate->{bytes}/($elapsed*1024*1024));
1047 syslog('info', "multipart upload complete
" .
1048 "(size
: %d time: %ds rate
: %.2fMiB
/s md5sum
: $rstate->{md5sum
})",
1049 $rstate->{bytes}, $elapsed, $rate);
1050 $self->handle_api2_request($reqstate, $auth, $method, $path, $rstate);
1055 syslog('err', $err);
1056 $self->error($reqstate, 501, $err);
1060 sub parse_content_type {
1063 my ($ct, @params) = split(/\s*[;,]\s*/o, $ctype);
1065 foreach my $v (@params) {
1066 if ($v =~ m/^\s*boundary\s*=\s*(\S+?)\s*$/o) {
1067 return wantarray ? ($ct, $1) : $ct;
1071 return wantarray ? ($ct) : $ct;
1074 sub parse_content_disposition {
1077 my ($disp, @params) = split(/\s*[;,]\s*/o, $line);
1081 foreach my $v (@params) {
1082 if ($v =~ m/^\s*name\s*=\s*(\S+?)\s*$/o) {
1084 $name =~ s/^"(.*)"$/$1/;
1085 } elsif ($v =~ m/^\s*filename\s*=\s*(.+?)\s*$/o) {
1087 $filename =~ s/^"(.*)"$/$1/;
1091 return wantarray ? ($disp, $name, $filename) : $disp;
1094 my $tmpfile_seq_no = 0;
1096 sub get_upload_filename {
1097 # choose unpredictable tmpfile name
1100 return "/var/tmp
/pveupload-
" . Digest::MD5::md5_hex($tmpfile_seq_no . time() . $$);
1103 sub unshift_read_header {
1104 my ($self, $reqstate, $state) = @_;
1106 $state = { size => 0, count => 0 } if !$state;
1108 $reqstate->{hdl}->unshift_read(line => sub {
1109 my ($hdl, $line) = @_;
1112 # print "$$: got header
: $line\n" if $self->{debug};
1114 die "to many http header lines
\n" if ++$state->{count} >= $limit_max_headers;
1115 die "http header too large
\n" if ($state->{size} += length($line)) >= $limit_max_header_size;
1117 my $r = $reqstate->{request};
1120 my $path = uri_unescape($r->uri->path());
1121 my $method = $r->method();
1123 $r->push_header($state->{key}, $state->{val})
1126 if (!$known_methods->{$method}) {
1127 my $resp = HTTP::Response->new(HTTP_NOT_IMPLEMENTED, "method '$method' not available
");
1128 $self->response($reqstate, $resp);
1132 my $conn = $r->header('Connection');
1133 my $accept_enc = $r->header('Accept-Encoding');
1134 $reqstate->{accept_gzip} = ($accept_enc && $accept_enc =~ m/gzip/) ? 1 : 0;
1137 $reqstate->{keep_alive} = 0 if $conn =~ m/close/oi;
1139 if ($reqstate->{proto}->{ver} < 1001) {
1140 $reqstate->{keep_alive} = 0;
1144 my $te = $r->header('Transfer-Encoding');
1145 if ($te && lc($te) eq 'chunked') {
1146 # Handle chunked transfer encoding
1147 $self->error($reqstate, 501, "chunked transfer encoding
not supported
");
1150 $self->error($reqstate, 501, "Unknown transfer encoding
'$te'");
1154 my $pveclientip = $r->header('PVEClientIP');
1155 my $base_uri = $self->{base_uri};
1157 # fixme: how can we make PVEClientIP header trusted?
1158 if ($self->{trusted_env} && $pveclientip) {
1159 $reqstate->{peer_host} = $pveclientip;
1161 $r->header('PVEClientIP', $reqstate->{peer_host});
1164 my $len = $r->header('Content-Length');
1166 # header processing complete - authenticate now
1169 if ($self->{spiceproxy}) {
1170 my $connect_str = $r->header('Host');
1171 my ($vmid, $node, $port) = $self->verify_spice_connect_url($connect_str);
1172 if (!(defined($vmid) && $node && $port)) {
1173 $self->error($reqstate, HTTP_UNAUTHORIZED, "invalid ticket
");
1176 $self->handle_spice_proxy_request($reqstate, $connect_str, $vmid, $node, $port);
1178 } elsif ($path =~ m/^\Q$base_uri\E/) {
1179 my $token = $r->header('CSRFPreventionToken');
1180 my $cookie = $r->header('Cookie');
1181 my $ticket = PVE::APIServer::Formatter::extract_auth_cookie($cookie, $self->{cookie_name});
1183 my ($rel_uri, $format) = &$split_abs_uri($path, $self->{base_uri});
1185 $self->error($reqstate, HTTP_NOT_IMPLEMENTED, "no such uri
");
1189 my $rpcenv = $self->{rpcenv};
1190 # set environment variables
1191 $rpcenv->set_user(undef);
1192 $rpcenv->set_language('C');
1193 $rpcenv->set_client_ip($reqstate->{peer_host});
1196 $auth = $self->auth_handler($method, $rel_uri, $ticket, $token);
1199 # always delay unauthorized calls by 3 seconds
1201 if (my $formatter = PVE::APIServer::Formatter::get_login_formatter($format)) {
1202 my ($raw, $ct, $nocomp) = &$formatter($path, $auth);
1204 if (ref($raw) && (ref($raw) eq 'HTTP::Response')) {
1207 $resp = HTTP::Response->new(HTTP_UNAUTHORIZED, "Login Required
");
1208 $resp->header("Content-Type
" => $ct);
1209 $resp->content($raw);
1211 $self->response($reqstate, $resp, undef, $nocomp, 3);
1213 my $resp = HTTP::Response->new(HTTP_UNAUTHORIZED, $err);
1214 $self->response($reqstate, $resp, undef, 0, $delay);
1220 $reqstate->{log}->{userid} = $auth->{userid};
1224 if (!($method eq 'PUT' || $method eq 'POST')) {
1225 $self->error($reqstate, 501, "Unexpected content
for method '$method'");
1229 my $ctype = $r->header('Content-Type');
1230 my ($ct, $boundary) = parse_content_type($ctype) if $ctype;
1232 if ($auth->{isUpload} && !$self->{trusted_env}) {
1233 die "upload
'Content-Type '$ctype' not implemented\n"
1234 if !($boundary && $ct && ($ct eq 'multipart
/form-data
'));
1236 die "upload without content length header not supported" if !$len;
1238 die "upload without content length header not supported" if !$len;
1240 print "start upload $path $ct $boundary\n" if $self->{debug};
1242 my $tmpfilename = get_upload_filename();
1243 my $outfh = IO::File->new($tmpfilename, O_RDWR|O_CREAT|O_EXCL, 0600) ||
1244 die "unable to create temporary upload file '$tmpfilename'";
1246 $reqstate->{keep_alive} = 0;
1248 my $boundlen = length($boundary) + 8; # \015?\012--$boundary--\015?\012
1252 boundary => $boundary,
1253 ctx => Digest::MD5->new,
1254 boundlen => $boundlen,
1255 maxheader => 2048 + $boundlen, # should be large enough
1256 params => decode_urlencoded($r->url->query()),
1260 starttime => [gettimeofday],
1263 $reqstate->{tmpfilename} = $tmpfilename;
1264 $reqstate->{hdl}->on_read(sub { $self->file_upload_multipart($reqstate, $auth, $method, $path, $state); });
1268 if ($len > $limit_max_post) {
1269 $self->error($reqstate, 501, "for data too large");
1273 if (!$ct || $ct eq 'application
/x-www-form-urlencoded
') {
1274 $reqstate->{hdl}->unshift_read(chunk => $len, sub {
1275 my ($hdl, $data) = @_;
1277 $self->handle_request($reqstate, $auth, $method, $path);
1280 $self->error($reqstate, 506, "upload 'Content-Type
'$ctype' not implemented
");
1283 $self->handle_request($reqstate, $auth, $method, $path);
1285 } elsif ($line =~ /^([^:\s]+)\s*:\s*(.*)/) {
1286 $r->push_header($state->{key}, $state->{val}) if $state->{key};
1287 ($state->{key}, $state->{val}) = ($1, $2);
1288 $self->unshift_read_header($reqstate, $state);
1289 } elsif ($line =~ /^\s+(.*)/) {
1290 $state->{val} .= " $1";
1291 $self->unshift_read_header($reqstate, $state);
1293 $self->error($reqstate, 506, "unable to parse request header
");
1300 sub push_request_header {
1301 my ($self, $reqstate) = @_;
1304 $reqstate->{hdl}->push_read(line => sub {
1305 my ($hdl, $line) = @_;
1308 # print "got request header
: $line\n" if $self->{debug};
1310 $reqstate->{keep_alive}--;
1312 if ($line =~ /(\S+)\040(\S+)\040HTTP\/(\d+)\.(\d+)/o) {
1313 my ($method, $url, $maj, $min) = ($1, $2, $3, $4);
1316 $self->error($reqstate, 506, "http protocol version
$maj.$min not supported
");
1320 $self->{request_count}++; # only count valid request headers
1321 if ($self->{request_count} >= $self->{max_requests}) {
1322 $self->{end_loop} = 1;
1324 $reqstate->{log} = { requestline => $line };
1325 $reqstate->{proto}->{str} = "HTTP
/$maj.$min";
1326 $reqstate->{proto}->{maj} = $maj;
1327 $reqstate->{proto}->{min} = $min;
1328 $reqstate->{proto}->{ver} = $maj*1000+$min;
1329 $reqstate->{request} = HTTP::Request->new($method, $url);
1330 $reqstate->{starttime} = [gettimeofday],
1332 $self->unshift_read_header($reqstate);
1333 } elsif ($line eq '') {
1334 # ignore empty lines before requests (browser bugs?)
1335 $self->push_request_header($reqstate);
1337 $self->error($reqstate, 400, 'bad request');
1351 return if $self->{end_loop};
1353 # we need to m make sure that only one process calls accept
1354 while (!flock($self->{lockfh}, Fcntl::LOCK_EX())) {
1355 next if $! == EINTR;
1356 die "could
not get
lock on file
'$self->{lockfile}' - $!\n";
1362 while (!$self->{end_loop} &&
1363 !defined($clientfh = $self->{socket}->accept()) &&
1366 if ($self->{end_loop}) {
1369 $again = ($! == EAGAIN || $! == WSAEWOULDBLOCK);
1370 if (!defined($clientfh)) {
1371 $errmsg = "failed to
accept connection
: $!\n";
1377 flock($self->{lockfh}, Fcntl::LOCK_UN());
1379 if (!defined($clientfh)) {
1381 die $errmsg if $errmsg;
1384 fh_nonblocking $clientfh, 1;
1386 $self->{conn_count}++;
1394 $self->{end_loop} = 1;
1396 undef $self->{socket_watch};
1398 $0 = "$0 (shutdown)" if $0 !~ m/\(shutdown\)$/;
1400 if ($self->{conn_count} <= 0) {
1401 $self->{end_cond}->send(1);
1405 # fork and exit, so that parent starts a new worker
1410 # else we need to wait until all open connections gets closed
1411 my $w; $w = AnyEvent->timer (after => 1, interval => 1, cb => sub {
1413 # todo: test for active connections instead (we can abort idle connections)
1414 if ($self->{conn_count} <= 0) {
1416 $self->{end_cond}->send(1);
1424 sub check_host_access {
1425 my ($self, $clientip) = @_;
1427 my $cip = Net::IP->new($clientip);
1429 my $match_allow = 0;
1432 if ($self->{allow_from}) {
1433 foreach my $t (@{$self->{allow_from}}) {
1434 if ($t->overlaps($cip)) {
1441 if ($self->{deny_from}) {
1442 foreach my $t (@{$self->{deny_from}}) {
1443 if ($t->overlaps($cip)) {
1450 if ($match_allow == $match_deny) {
1451 # match both allow and deny, or no match
1452 return $self->{policy} && $self->{policy} eq 'allow' ? 1 : 0;
1455 return $match_allow;
1458 sub accept_connections {
1463 while (my $clientfh = $self->accept()) {
1465 my $reqstate = { keep_alive => $self->{keep_alive} };
1467 # stop keep-alive when there are many open connections
1468 if ($self->{conn_count} >= $self->{max_conn_soft_limit}) {
1469 $reqstate->{keep_alive} = 0;
1472 if (my $sin = getpeername($clientfh)) {
1473 my ($pfamily, $pport, $phost) = PVE::Tools::unpack_sockaddr_in46($sin);
1474 ($reqstate->{peer_port}, $reqstate->{peer_host}) = ($pport, Socket::inet_ntop($pfamily, $phost));
1477 if (!$self->{trusted_env} && !$self->check_host_access($reqstate->{peer_host})) {
1478 print "$$: ABORT request from
$reqstate->{peer_host
} - access denied
\n" if $self->{debug};
1479 $reqstate->{log}->{code} = 403;
1480 $self->log_request($reqstate);
1484 $reqstate->{hdl} = AnyEvent::Handle->new(
1486 rbuf_max => 64*1024,
1487 timeout => $self->{timeout},
1488 linger => 0, # avoid problems with ssh - really needed ?
1492 $self->log_aborted_request($reqstate);
1493 $self->client_do_disconnect($reqstate);
1495 if (my $err = $@) { syslog('err', $err); }
1498 my ($hdl, $fatal, $message) = @_;
1500 $self->log_aborted_request($reqstate, $message);
1501 $self->client_do_disconnect($reqstate);
1503 if (my $err = $@) { syslog('err', "$err"); }
1505 ($self->{tls_ctx} ? (tls => "accept", tls_ctx => $self->{tls_ctx}) : ()));
1507 print "$$: ACCEPT FH
" . $clientfh->fileno() . " CONN
$self->{conn_count
}\n" if $self->{debug};
1509 $self->push_request_header($reqstate);
1514 syslog('err', $err);
1515 $self->{end_loop} = 1;
1518 $self->wait_end_loop() if $self->{end_loop};
1521 # Note: We can't open log file in non-blocking mode and use AnyEvent::Handle,
1522 # because we write from multiple processes, and that would arbitrarily mix output
1524 sub open_access_log {
1525 my ($self, $filename) = @_;
1527 my $old_mask = umask(0137);;
1528 my $logfh = IO::File->new($filename, ">>") ||
1529 die "unable to
open log file
'$filename' - $!\n";
1532 $logfh->autoflush(1);
1534 $self->{logfh} = $logfh;
1538 my ($self, $data) = @_;
1540 return if !defined($self->{logfh}) || !$data;
1542 my $res = $self->{logfh}->print($data);
1545 delete $self->{logfh};
1546 syslog('err', "error writing access
log");
1547 $self->{end_loop} = 1; # terminate asap
1551 sub atfork_handler {
1555 # something else do to ?
1556 close($self->{socket});
1564 $self->{end_cond}->recv;
1568 my ($this, %args) = @_;
1570 my $class = ref($this) || $this;
1572 foreach my $req (qw(base_handler_class socket lockfh lockfile)) {
1573 die "misssing required argument '$req'" if !defined($args{$req});
1576 my $self = bless { %args }, $class;
1578 $self->{cookie_name
} //= 'PVEAuthCookie';
1579 $self->{base_uri
} //= "/api2";
1582 PVE
::INotify
::inotify_init
();
1584 fh_nonblocking
($self->{socket}, 1);
1586 $self->{end_loop
} = 0;
1587 $self->{conn_count
} = 0;
1588 $self->{request_count
} = 0;
1589 $self->{timeout
} = 5 if !$self->{timeout
};
1590 $self->{keep_alive
} = 0 if !defined($self->{keep_alive
});
1591 $self->{max_conn
} = 800 if !$self->{max_conn
};
1592 $self->{max_requests
} = 8000 if !$self->{max_requests
};
1594 $self->{policy
} = 'allow' if !$self->{policy
};
1596 $self->{end_cond
} = AnyEvent-
>condvar;
1599 $self->{tls_ctx
} = AnyEvent
::TLS-
>new(%{$self->{ssl
}});
1600 # TODO : openssl >= 1.0.2 supports SSL_CTX_set_ecdh_auto to select a curve depending on
1601 # server and client availability from SSL_CTX_set1_curves.
1602 # that way other curves like 25519 can be used.
1603 # openssl 1.0.1 can only support 1 curve at a time.
1604 my $curve = Net
::SSLeay
::OBJ_txt2nid
('prime256v1');
1605 my $ecdh = Net
::SSLeay
::EC_KEY_new_by_curve_name
($curve);
1606 Net
::SSLeay
::CTX_set_options
($self->{tls_ctx
}->{ctx
}, &Net
::SSLeay
::OP_NO_COMPRESSION
| &Net
::SSLeay
::OP_SINGLE_ECDH_USE
| &Net
::SSLeay
::OP_SINGLE_DH_USE
);
1607 Net
::SSLeay
::CTX_set_tmp_ecdh
($self->{tls_ctx
}->{ctx
}, $ecdh);
1608 Net
::SSLeay
::EC_KEY_free
($ecdh);
1611 if ($self->{spiceproxy
}) {
1612 $known_methods = { CONNECT
=> 1 };
1615 $self->open_access_log($self->{logfile
}) if $self->{logfile
};
1617 $self->{max_conn_soft_limit
} = $self->{max_conn
} > 100 ?
$self->{max_conn
} - 20 : $self->{max_conn
};
1619 $self->{socket_watch
} = AnyEvent-
>io(fh
=> $self->{socket}, poll
=> 'r', cb
=> sub {
1621 if ($self->{conn_count
} >= $self->{max_conn
}) {
1622 my $w; $w = AnyEvent-
>timer (after
=> 1, interval
=> 1, cb
=> sub {
1623 if ($self->{conn_count
} < $self->{max_conn
}) {
1625 $self->accept_connections();
1629 $self->accept_connections();
1635 $self->{term_watch
} = AnyEvent-
>signal(signal
=> "TERM", cb
=> sub {
1636 undef $self->{term_watch
};
1637 $self->wait_end_loop();
1640 $self->{quit_watch
} = AnyEvent-
>signal(signal
=> "QUIT", cb
=> sub {
1641 undef $self->{quit_watch
};
1642 $self->wait_end_loop();
1645 $self->{inotify_poll
} = AnyEvent-
>timer(after
=> 5, interval
=> 5, cb
=> sub {
1646 PVE
::INotify
::poll
(); # read inotify events
1652 # abstract functions - subclass should overwrite/implement them
1654 sub verify_spice_connect_url
{
1655 my ($self, $connect_str) = @_;
1659 #return ($vmid, $node, $port);
1662 # formatters can call this when the generate a new page
1663 sub generate_csrf_prevention_token
{
1664 my ($username) = @_;
1666 return undef; # do nothing by default
1670 my ($self, $method, $rel_uri, $ticket, $token) = @_;
1675 # ticket => $ticket,
1677 # userid => $username,
1679 # isUpload => $isUpload,
1680 # cookie_name => $self->{cookie_name},
1685 my ($self, $clientip, $method, $rel_uri, $auth, $params) = @_;
1688 status
=> HTTP_NOT_IMPLEMENTED
,
1689 message
=> "Method '$method $rel_uri' not implemented",
1693 sub check_cert_fingerprint
{
1694 my ($self, $cert) = @_;
1699 sub initialize_cert_cache
{
1700 my ($self, $node) = @_;
1705 sub remote_node_ip
{
1706 my ($self, $node) = @_;