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d8218001 DM |
1 | package PVE::HTTPServer; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
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); | |
8 | use Fcntl; | |
9 | use IO::File; | |
10 | use File::stat qw(); | |
11 | use MIME::Base64; | |
12 | use Digest::MD5; | |
13 | use Digest::SHA; | |
14 | # use AnyEvent::Strict; # only use this for debugging | |
15 | use AnyEvent::Util qw(guard fh_nonblocking WSAEWOULDBLOCK WSAEINPROGRESS); | |
16 | use AnyEvent::Socket; | |
17 | use AnyEvent::Handle; | |
18 | use Net::SSLeay; | |
19 | use AnyEvent::TLS; | |
20 | use AnyEvent::IO; | |
21 | use AnyEvent::HTTP; | |
22 | use Fcntl (); | |
23 | use Compress::Zlib; | |
24 | use PVE::SafeSyslog; | |
25 | use PVE::INotify; | |
26 | use PVE::Tools; | |
27 | use PVE::RPCEnvironment; | |
28 | use PVE::Cluster; | |
29 | ||
30 | use Net::IP; | |
31 | use URI; | |
32 | use URI::Escape; | |
33 | use HTTP::Status qw(:constants); | |
34 | use HTTP::Date; | |
35 | use HTTP::Headers; | |
36 | use HTTP::Request; | |
37 | use HTTP::Response; | |
38 | use Data::Dumper; | |
39 | ||
40 | my $limit_max_headers = 30; | |
41 | my $limit_max_header_size = 8*1024; | |
42 | my $limit_max_post = 16*1024; | |
43 | ||
44 | ||
45 | my $known_methods = { | |
46 | GET => 1, | |
47 | POST => 1, | |
48 | PUT => 1, | |
49 | DELETE => 1, | |
50 | }; | |
51 | ||
52 | my $split_abs_uri = sub { | |
53 | my ($abs_uri, $base_uri) = @_; | |
54 | ||
55 | my ($format, $rel_uri) = $abs_uri =~ m/^\Q$base_uri\E\/+([a-z][a-z0-9]+)(\/.*)?$/; | |
56 | $rel_uri = '/' if !$rel_uri; | |
57 | ||
58 | return wantarray ? ($rel_uri, $format) : $rel_uri; | |
59 | }; | |
60 | ||
61 | # generic formatter support | |
62 | ||
63 | my $formatter_hash = {}; | |
64 | ||
65 | sub register_formatter { | |
66 | my ($format, $func) = @_; | |
67 | ||
68 | die "formatter '$format' already defined" if $formatter_hash->{$format}; | |
69 | ||
70 | $formatter_hash->{$format} = { | |
71 | func => $func, | |
72 | }; | |
73 | } | |
74 | ||
75 | sub get_formatter { | |
76 | my ($format) = @_; | |
77 | ||
78 | return undef if !$format; | |
79 | ||
80 | my $info = $formatter_hash->{$format}; | |
81 | return undef if !$info; | |
82 | ||
83 | return $info->{func}; | |
84 | } | |
85 | ||
86 | my $login_formatter_hash = {}; | |
87 | ||
88 | sub register_login_formatter { | |
89 | my ($format, $func) = @_; | |
90 | ||
91 | die "login formatter '$format' already defined" if $login_formatter_hash->{$format}; | |
92 | ||
93 | $login_formatter_hash->{$format} = { | |
94 | func => $func, | |
95 | }; | |
96 | } | |
97 | ||
98 | sub get_login_formatter { | |
99 | my ($format) = @_; | |
100 | ||
101 | return undef if !$format; | |
102 | ||
103 | my $info = $login_formatter_hash->{$format}; | |
104 | return undef if !$info; | |
105 | ||
106 | return $info->{func}; | |
107 | } | |
108 | ||
109 | ||
110 | # server implementation | |
111 | ||
112 | sub log_request { | |
113 | my ($self, $reqstate) = @_; | |
114 | ||
115 | my $loginfo = $reqstate->{log}; | |
116 | ||
117 | # like apache2 common log format | |
118 | # LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-agent}i\"" | |
119 | ||
120 | return if $loginfo->{written}; # avoid duplicate logs | |
121 | $loginfo->{written} = 1; | |
122 | ||
123 | my $peerip = $reqstate->{peer_host} || '-'; | |
124 | my $userid = $loginfo->{userid} || '-'; | |
125 | my $content_length = defined($loginfo->{content_length}) ? $loginfo->{content_length} : '-'; | |
126 | my $code = $loginfo->{code} || 500; | |
127 | my $requestline = $loginfo->{requestline} || '-'; | |
128 | my $timestr = strftime("%d/%b/%Y:%H:%M:%S %z", localtime()); | |
129 | ||
130 | my $msg = "$peerip - $userid [$timestr] \"$requestline\" $code $content_length\n"; | |
131 | ||
132 | $self->write_log($msg); | |
133 | } | |
134 | ||
135 | sub log_aborted_request { | |
136 | my ($self, $reqstate, $error) = @_; | |
137 | ||
138 | my $r = $reqstate->{request}; | |
139 | return if !$r; # no active request | |
140 | ||
141 | if ($error) { | |
142 | syslog("err", "problem with client $reqstate->{peer_host}; $error"); | |
143 | } | |
144 | ||
145 | $self->log_request($reqstate); | |
146 | } | |
147 | ||
148 | sub extract_auth_cookie { | |
149 | my ($cookie, $cookie_name) = @_; | |
150 | ||
151 | return undef if !$cookie; | |
152 | ||
153 | my $ticket = ($cookie =~ /(?:^|\s)\Q$cookie_name\E=([^;]*)/)[0]; | |
154 | ||
155 | if ($ticket && $ticket =~ m/^PVE%3A/) { | |
156 | $ticket = uri_unescape($ticket); | |
157 | } | |
158 | ||
159 | return $ticket; | |
160 | } | |
161 | ||
162 | sub create_auth_cookie { | |
163 | my ($ticket, $cookie_name) = @_; | |
164 | ||
165 | my $encticket = uri_escape($ticket); | |
166 | ||
167 | return "${cookie_name}=$encticket; path=/; secure;"; | |
168 | } | |
169 | ||
170 | sub cleanup_reqstate { | |
171 | my ($reqstate) = @_; | |
172 | ||
173 | delete $reqstate->{log}; | |
174 | delete $reqstate->{request}; | |
175 | delete $reqstate->{proto}; | |
176 | delete $reqstate->{accept_gzip}; | |
177 | delete $reqstate->{starttime}; | |
178 | ||
179 | if ($reqstate->{tmpfilename}) { | |
180 | unlink $reqstate->{tmpfilename}; | |
181 | delete $reqstate->{tmpfilename}; | |
182 | } | |
183 | } | |
184 | ||
185 | sub client_do_disconnect { | |
186 | my ($self, $reqstate) = @_; | |
187 | ||
188 | cleanup_reqstate($reqstate); | |
189 | ||
190 | my $shutdown_hdl = sub { | |
191 | my $hdl = shift; | |
192 | ||
193 | shutdown($hdl->{fh}, 1); | |
194 | # clear all handlers | |
195 | $hdl->on_drain(undef); | |
196 | $hdl->on_read(undef); | |
197 | $hdl->on_eof(undef); | |
198 | }; | |
199 | ||
200 | if (my $proxyhdl = delete $reqstate->{proxyhdl}) { | |
201 | &$shutdown_hdl($proxyhdl); | |
202 | } | |
203 | ||
204 | my $hdl = delete $reqstate->{hdl}; | |
205 | ||
206 | if (!$hdl) { | |
207 | syslog('err', "detected empty handle"); | |
208 | return; | |
209 | } | |
210 | ||
211 | print "close connection $hdl\n" if $self->{debug}; | |
212 | ||
213 | &$shutdown_hdl($hdl); | |
214 | ||
215 | $self->{conn_count}--; | |
216 | ||
217 | print "$$: CLOSE FH" . $hdl->{fh}->fileno() . " CONN$self->{conn_count}\n" if $self->{debug}; | |
218 | } | |
219 | ||
220 | sub finish_response { | |
221 | my ($self, $reqstate) = @_; | |
222 | ||
223 | my $hdl = $reqstate->{hdl}; | |
224 | ||
225 | cleanup_reqstate($reqstate); | |
226 | ||
227 | if (!$self->{end_loop} && $reqstate->{keep_alive} > 0) { | |
228 | # print "KEEPALIVE $reqstate->{keep_alive}\n" if $self->{debug}; | |
229 | $hdl->on_read(sub { | |
230 | eval { $self->push_request_header($reqstate); }; | |
231 | warn $@ if $@; | |
232 | }); | |
233 | } else { | |
234 | $hdl->on_drain (sub { | |
235 | eval { | |
236 | $self->client_do_disconnect($reqstate); | |
237 | }; | |
238 | warn $@ if $@; | |
239 | }); | |
240 | } | |
241 | } | |
242 | ||
243 | sub response { | |
244 | my ($self, $reqstate, $resp, $mtime, $nocomp, $delay) = @_; | |
245 | ||
246 | #print "$$: send response: " . Dumper($resp); | |
247 | ||
248 | # activate timeout | |
249 | $reqstate->{hdl}->timeout_reset(); | |
250 | $reqstate->{hdl}->timeout($self->{timeout}); | |
251 | ||
252 | $nocomp = 1 if !$reqstate->{accept_gzip}; | |
253 | ||
254 | my $code = $resp->code; | |
255 | my $msg = $resp->message || HTTP::Status::status_message($code); | |
256 | ($msg) = $msg =~m/^(.*)$/m; | |
257 | my $content = $resp->content; | |
258 | ||
259 | if ($code =~ /^(1\d\d|[23]04)$/) { | |
260 | # make sure content we have no content | |
261 | $content = ""; | |
262 | } | |
263 | ||
264 | $reqstate->{keep_alive} = 0 if ($code >= 400) || $self->{end_loop}; | |
265 | ||
266 | $reqstate->{log}->{code} = $code; | |
267 | ||
268 | my $proto = $reqstate->{proto} ? $reqstate->{proto}->{str} : 'HTTP/1.0'; | |
269 | my $res = "$proto $code $msg\015\012"; | |
270 | ||
271 | my $ctime = time(); | |
272 | my $date = HTTP::Date::time2str($ctime); | |
273 | $resp->header('Date' => $date); | |
274 | if ($mtime) { | |
275 | $resp->header('Last-Modified' => HTTP::Date::time2str($mtime)); | |
276 | } else { | |
277 | $resp->header('Expires' => $date); | |
278 | $resp->header('Cache-Control' => "max-age=0"); | |
279 | $resp->header("Pragma", "no-cache"); | |
280 | } | |
281 | ||
282 | $resp->header('Server' => "pve-api-daemon/3.0"); | |
283 | ||
284 | my $content_length; | |
285 | if ($content) { | |
286 | ||
287 | $content_length = length($content); | |
288 | ||
289 | if (!$nocomp && ($content_length > 1024)) { | |
290 | my $comp = Compress::Zlib::memGzip($content); | |
291 | $resp->header('Content-Encoding', 'gzip'); | |
292 | $content = $comp; | |
293 | $content_length = length($content); | |
294 | } | |
295 | $resp->header("Content-Length" => $content_length); | |
296 | $reqstate->{log}->{content_length} = $content_length; | |
297 | ||
298 | } else { | |
299 | $resp->remove_header("Content-Length"); | |
300 | } | |
301 | ||
302 | if ($reqstate->{keep_alive} > 0) { | |
303 | $resp->push_header('Connection' => 'Keep-Alive'); | |
304 | } else { | |
305 | $resp->header('Connection' => 'close'); | |
306 | } | |
307 | ||
308 | $res .= $resp->headers_as_string("\015\012"); | |
309 | #print "SEND(without content) $res\n" if $self->{debug}; | |
310 | ||
311 | $res .= "\015\012"; | |
312 | $res .= $content if $content; | |
313 | ||
314 | $self->log_request($reqstate, $reqstate->{request}); | |
315 | ||
316 | if ($delay && $delay > 0) { | |
317 | my $w; $w = AnyEvent->timer(after => $delay, cb => sub { | |
318 | undef $w; # delete reference | |
319 | $reqstate->{hdl}->push_write($res); | |
320 | $self->finish_response($reqstate); | |
321 | }); | |
322 | } else { | |
323 | $reqstate->{hdl}->push_write($res); | |
324 | $self->finish_response($reqstate); | |
325 | } | |
326 | } | |
327 | ||
328 | sub error { | |
329 | my ($self, $reqstate, $code, $msg, $hdr, $content) = @_; | |
330 | ||
331 | eval { | |
332 | my $resp = HTTP::Response->new($code, $msg, $hdr, $content); | |
333 | $self->response($reqstate, $resp); | |
334 | }; | |
335 | warn $@ if $@; | |
336 | } | |
337 | ||
338 | my $file_extension_info = { | |
339 | css => { ct => 'text/css' }, | |
340 | html => { ct => 'text/html' }, | |
341 | js => { ct => 'application/javascript' }, | |
342 | png => { ct => 'image/png' , nocomp => 1 }, | |
343 | ico => { ct => 'image/x-icon', nocomp => 1}, | |
344 | gif => { ct => 'image/gif', nocomp => 1}, | |
345 | jar => { ct => 'application/java-archive', nocomp => 1}, | |
346 | woff => { ct => 'application/font-woff', nocomp => 1}, | |
347 | woff2 => { ct => 'application/font-woff2', nocomp => 1}, | |
348 | ttf => { ct => 'application/font-snft', nocomp => 1}, | |
349 | pdf => { ct => 'application/pdf', nocomp => 1}, | |
350 | epub => { ct => 'application/epub+zip', nocomp => 1}, | |
351 | }; | |
352 | ||
353 | sub send_file_start { | |
354 | my ($self, $reqstate, $filename) = @_; | |
355 | ||
356 | eval { | |
357 | # print "SEND FILE $filename\n"; | |
358 | # Note: aio_load() this is not really async unless we use IO::AIO! | |
359 | eval { | |
360 | ||
361 | my $r = $reqstate->{request}; | |
362 | ||
363 | my $fh = IO::File->new($filename, '<') || | |
364 | die "$!\n"; | |
365 | my $stat = File::stat::stat($fh) || | |
366 | die "$!\n"; | |
367 | ||
368 | my $mtime = $stat->mtime; | |
369 | ||
370 | if (my $ifmod = $r->header('if-modified-since')) { | |
371 | my $iftime = HTTP::Date::str2time($ifmod); | |
372 | if ($mtime <= $iftime) { | |
373 | my $resp = HTTP::Response->new(304, "NOT MODIFIED"); | |
374 | $self->response($reqstate, $resp, $mtime); | |
375 | return; | |
376 | } | |
377 | } | |
378 | ||
379 | my $data; | |
380 | my $len = sysread($fh, $data, $stat->size); | |
381 | die "got short file\n" if !defined($len) || $len != $stat->size; | |
382 | ||
383 | my ($ext) = $filename =~ m/\.([^.]*)$/; | |
384 | my $ext_info = $file_extension_info->{$ext}; | |
385 | ||
386 | die "unable to detect content type" if !$ext_info; | |
387 | ||
388 | my $header = HTTP::Headers->new(Content_Type => $ext_info->{ct}); | |
389 | my $resp = HTTP::Response->new(200, "OK", $header, $data); | |
390 | $self->response($reqstate, $resp, $mtime, $ext_info->{nocomp}); | |
391 | }; | |
392 | if (my $err = $@) { | |
393 | $self->error($reqstate, 501, $err); | |
394 | } | |
395 | }; | |
396 | ||
397 | warn $@ if $@; | |
398 | } | |
399 | ||
400 | sub websocket_proxy { | |
401 | my ($self, $reqstate, $wsaccept, $wsproto, $param) = @_; | |
402 | ||
403 | eval { | |
404 | my $remhost; | |
405 | my $remport; | |
406 | ||
407 | my $max_payload_size = 65536; | |
408 | ||
409 | my $binary; | |
410 | if ($wsproto eq 'binary') { | |
411 | $binary = 1; | |
412 | } elsif ($wsproto eq 'base64') { | |
413 | $binary = 0; | |
414 | } else { | |
415 | die "websocket_proxy: unsupported protocol '$wsproto'\n"; | |
416 | } | |
417 | ||
418 | if ($param->{port}) { | |
419 | $remhost = 'localhost'; | |
420 | $remport = $param->{port}; | |
421 | } elsif ($param->{socket}) { | |
422 | $remhost = 'unix/'; | |
423 | $remport = $param->{socket}; | |
424 | } else { | |
425 | die "websocket_proxy: missing port or socket\n"; | |
426 | } | |
427 | ||
428 | tcp_connect $remhost, $remport, sub { | |
429 | my ($fh) = @_ | |
430 | or die "connect to '$remhost:$remport' failed: $!"; | |
431 | ||
432 | print "$$: CONNECTed to '$remhost:$remport'\n" if $self->{debug}; | |
433 | ||
434 | $reqstate->{proxyhdl} = AnyEvent::Handle->new( | |
435 | fh => $fh, | |
436 | rbuf_max => 64*1024, | |
437 | wbuf_max => 64*10*1024, | |
438 | timeout => 5, | |
439 | on_eof => sub { | |
440 | my ($hdl) = @_; | |
441 | eval { | |
442 | $self->log_aborted_request($reqstate); | |
443 | $self->client_do_disconnect($reqstate); | |
444 | }; | |
445 | if (my $err = $@) { syslog('err', $err); } | |
446 | }, | |
447 | on_error => sub { | |
448 | my ($hdl, $fatal, $message) = @_; | |
449 | eval { | |
450 | $self->log_aborted_request($reqstate, $message); | |
451 | $self->client_do_disconnect($reqstate); | |
452 | }; | |
453 | if (my $err = $@) { syslog('err', "$err"); } | |
454 | }); | |
455 | ||
456 | my $proxyhdlreader = sub { | |
457 | my ($hdl) = @_; | |
458 | ||
459 | my $len = length($hdl->{rbuf}); | |
460 | my $data = substr($hdl->{rbuf}, 0, $len, ''); | |
461 | ||
462 | my $string; | |
463 | my $payload; | |
464 | ||
465 | if ($binary) { | |
466 | $string = "\x82"; # binary frame | |
467 | $payload = $data; | |
468 | } else { | |
469 | $string = "\x81"; # text frame | |
470 | $payload = encode_base64($data, ''); | |
471 | } | |
472 | ||
473 | my $payload_len = length($payload); | |
474 | if ($payload_len <= 125) { | |
475 | $string .= pack 'C', $payload_len; | |
476 | } elsif ($payload_len <= 0xffff) { | |
477 | $string .= pack 'C', 126; | |
478 | $string .= pack 'n', $payload_len; | |
479 | } else { | |
480 | $string .= pack 'C', 127; | |
481 | $string .= pack 'Q>', $payload_len; | |
482 | } | |
483 | $string .= $payload; | |
484 | ||
485 | $reqstate->{hdl}->push_write($string) if $reqstate->{hdl}; | |
486 | }; | |
487 | ||
488 | my $hdlreader = sub { | |
489 | my ($hdl) = @_; | |
490 | ||
491 | my $len = length($hdl->{rbuf}); | |
492 | return if $len < 2; | |
493 | ||
494 | my $hdr = unpack('C', substr($hdl->{rbuf}, 0, 1)); | |
495 | my $opcode = $hdr & 0b00001111; | |
496 | my $fin = $hdr & 0b10000000; | |
497 | ||
498 | die "received fragmented websocket frame\n" if !$fin; | |
499 | ||
500 | my $rsv = $hdr & 0b01110000; | |
501 | die "received websocket frame with RSV flags\n" if $rsv; | |
502 | ||
503 | my $payload_len = unpack 'C', substr($hdl->{rbuf}, 1, 1); | |
504 | ||
505 | my $masked = $payload_len & 0b10000000; | |
506 | die "received unmasked websocket frame from client\n" if !$masked; | |
507 | ||
508 | my $offset = 2; | |
509 | $payload_len = $payload_len & 0b01111111; | |
510 | if ($payload_len == 126) { | |
511 | return if $len < 4; | |
512 | $payload_len = unpack('n', substr($hdl->{rbuf}, $offset, 2)); | |
513 | $offset += 2; | |
514 | } elsif ($payload_len == 127) { | |
515 | return if $len < 10; | |
516 | $payload_len = unpack('Q>', substr($hdl->{rbuf}, $offset, 8)); | |
517 | $offset += 8; | |
518 | } | |
519 | ||
520 | die "received too large websocket frame (len = $payload_len)\n" | |
521 | if ($payload_len > $max_payload_size) || ($payload_len < 0); | |
522 | ||
523 | return if $len < ($offset + 4 + $payload_len); | |
524 | ||
525 | my $data = substr($hdl->{rbuf}, 0, $len, ''); # now consume data | |
526 | ||
527 | my @mask = (unpack('C', substr($data, $offset+0, 1)), | |
528 | unpack('C', substr($data, $offset+1, 1)), | |
529 | unpack('C', substr($data, $offset+2, 1)), | |
530 | unpack('C', substr($data, $offset+3, 1))); | |
531 | ||
532 | $offset += 4; | |
533 | ||
534 | my $payload = substr($data, $offset, $payload_len); | |
535 | ||
536 | for (my $i = 0; $i < $payload_len; $i++) { | |
537 | my $d = unpack('C', substr($payload, $i, 1)); | |
538 | my $n = $d ^ $mask[$i % 4]; | |
539 | substr($payload, $i, 1, pack('C', $n)); | |
540 | } | |
541 | ||
542 | $payload = decode_base64($payload) if !$binary; | |
543 | ||
544 | if ($opcode == 1 || $opcode == 2) { | |
545 | $reqstate->{proxyhdl}->push_write($payload) if $reqstate->{proxyhdl}; | |
546 | } elsif ($opcode == 8) { | |
547 | print "websocket received close\n" if $self->{debug}; | |
548 | if ($reqstate->{proxyhdl}) { | |
549 | $reqstate->{proxyhdl}->push_write($payload); | |
550 | $reqstate->{proxyhdl}->push_shutdown(); | |
551 | } | |
552 | $hdl->push_shutdown(); | |
553 | } else { | |
554 | die "received unhandled websocket opcode $opcode\n"; | |
555 | } | |
556 | }; | |
557 | ||
558 | my $proto = $reqstate->{proto} ? $reqstate->{proto}->{str} : 'HTTP/1.1'; | |
559 | ||
560 | $reqstate->{proxyhdl}->timeout(0); | |
561 | $reqstate->{proxyhdl}->on_read($proxyhdlreader); | |
562 | $reqstate->{hdl}->on_read($hdlreader); | |
563 | ||
564 | # todo: use stop_read/start_read if write buffer grows to much | |
565 | ||
566 | my $res = "$proto 101 Switching Protocols\015\012" . | |
567 | "Upgrade: websocket\015\012" . | |
568 | "Connection: upgrade\015\012" . | |
569 | "Sec-WebSocket-Accept: $wsaccept\015\012" . | |
570 | "Sec-WebSocket-Protocol: $wsproto\015\012" . | |
571 | "\015\012"; | |
572 | ||
573 | print $res if $self->{debug}; | |
574 | ||
575 | $reqstate->{hdl}->push_write($res); | |
576 | ||
577 | # log early | |
578 | $reqstate->{log}->{code} = 101; | |
579 | $self->log_request($reqstate); | |
580 | }; | |
581 | ||
582 | }; | |
583 | if (my $err = $@) { | |
584 | warn $err; | |
585 | $self->log_aborted_request($reqstate, $err); | |
586 | $self->client_do_disconnect($reqstate); | |
587 | } | |
588 | } | |
589 | ||
590 | sub proxy_request { | |
591 | my ($self, $reqstate, $clientip, $host, $node, $method, $uri, $ticket, $token, $params) = @_; | |
592 | ||
593 | eval { | |
594 | my $target; | |
595 | my $keep_alive = 1; | |
596 | if ($host eq 'localhost') { | |
597 | $target = "http://$host:85$uri"; | |
598 | # keep alive for localhost is not worth (connection setup is about 0.2ms) | |
599 | $keep_alive = 0; | |
600 | } elsif (Net::IP::ip_is_ipv6($host)) { | |
601 | $target = "https://[$host]:8006$uri"; | |
602 | } else { | |
603 | $target = "https://$host:8006$uri"; | |
604 | } | |
605 | ||
606 | my $headers = { | |
607 | PVEDisableProxy => 'true', | |
608 | PVEClientIP => $clientip, | |
609 | }; | |
610 | ||
611 | $headers->{'cookie'} = create_auth_cookie($ticket, $self->{cookie_name}) if $ticket; | |
612 | $headers->{'CSRFPreventionToken'} = $token if $token; | |
613 | $headers->{'Accept-Encoding'} = 'gzip' if $reqstate->{accept_gzip}; | |
614 | ||
615 | my $content; | |
616 | ||
617 | if ($method eq 'POST' || $method eq 'PUT') { | |
618 | $headers->{'Content-Type'} = 'application/x-www-form-urlencoded'; | |
619 | # use URI object to format application/x-www-form-urlencoded content. | |
620 | my $url = URI->new('http:'); | |
621 | $url->query_form(%$params); | |
622 | $content = $url->query; | |
623 | if (defined($content)) { | |
624 | $headers->{'Content-Length'} = length($content); | |
625 | } | |
626 | } | |
627 | ||
628 | my $tls = { | |
629 | # TLS 1.x only, with certificate pinning | |
630 | method => 'any', | |
631 | sslv2 => 0, | |
632 | sslv3 => 0, | |
633 | verify => 1, | |
634 | verify_cb => sub { | |
635 | my (undef, undef, undef, $depth, undef, undef, $cert) = @_; | |
636 | # we don't care about intermediate or root certificates | |
637 | return 1 if $depth != 0; | |
638 | # check server certificate against cache of pinned FPs | |
639 | return $self->check_cert_fingerprint($cert); | |
640 | }, | |
641 | }; | |
642 | ||
643 | # load and cache cert fingerprint if first time we proxy to this node | |
644 | $self->initialize_cert_cache($node); | |
645 | ||
646 | my $w; $w = http_request( | |
647 | $method => $target, | |
648 | headers => $headers, | |
649 | timeout => 30, | |
650 | recurse => 0, | |
651 | proxy => undef, # avoid use of $ENV{HTTP_PROXY} | |
652 | keepalive => $keep_alive, | |
653 | body => $content, | |
654 | tls_ctx => AnyEvent::TLS->new(%{$tls}), | |
655 | sub { | |
656 | my ($body, $hdr) = @_; | |
657 | ||
658 | undef $w; | |
659 | ||
660 | if (!$reqstate->{hdl}) { | |
661 | warn "proxy detected vanished client connection\n"; | |
662 | return; | |
663 | } | |
664 | ||
665 | eval { | |
666 | my $code = delete $hdr->{Status}; | |
667 | my $msg = delete $hdr->{Reason}; | |
668 | delete $hdr->{URL}; | |
669 | delete $hdr->{HTTPVersion}; | |
670 | my $header = HTTP::Headers->new(%$hdr); | |
671 | if (my $location = $header->header('Location')) { | |
672 | $location =~ s|^http://localhost:85||; | |
673 | $header->header(Location => $location); | |
674 | } | |
675 | my $resp = HTTP::Response->new($code, $msg, $header, $body); | |
676 | # Note: disable compression, because body is already compressed | |
677 | $self->response($reqstate, $resp, undef, 1); | |
678 | }; | |
679 | warn $@ if $@; | |
680 | }); | |
681 | }; | |
682 | warn $@ if $@; | |
683 | } | |
684 | ||
685 | # return arrays as \0 separated strings (like CGI.pm) | |
686 | sub decode_urlencoded { | |
687 | my ($data) = @_; | |
688 | ||
689 | my $res = {}; | |
690 | ||
691 | return $res if !$data; | |
692 | ||
693 | foreach my $kv (split(/[\&\;]/, $data)) { | |
694 | my ($k, $v) = split(/=/, $kv); | |
695 | $k =~s/\+/ /g; | |
696 | $k =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr(hex($1))/eg; | |
697 | $v =~s/\+/ /g; | |
698 | $v =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr(hex($1))/eg; | |
699 | ||
700 | if (defined(my $old = $res->{$k})) { | |
701 | $res->{$k} = "$old\0$v"; | |
702 | } else { | |
703 | $res->{$k} = $v; | |
704 | } | |
705 | } | |
706 | return $res; | |
707 | } | |
708 | ||
709 | sub extract_params { | |
710 | my ($r, $method) = @_; | |
711 | ||
712 | my $params = {}; | |
713 | ||
714 | if ($method eq 'PUT' || $method eq 'POST') { | |
715 | $params = decode_urlencoded($r->content); | |
716 | } | |
717 | ||
718 | my $query_params = decode_urlencoded($r->url->query()); | |
719 | ||
720 | foreach my $k (keys %{$query_params}) { | |
721 | $params->{$k} = $query_params->{$k}; | |
722 | } | |
723 | ||
724 | return PVE::Tools::decode_utf8_parameters($params); | |
725 | } | |
726 | ||
727 | sub handle_api2_request { | |
728 | my ($self, $reqstate, $auth, $method, $path, $upload_state) = @_; | |
729 | ||
730 | eval { | |
731 | my $r = $reqstate->{request}; | |
732 | ||
733 | my ($rel_uri, $format) = &$split_abs_uri($path, $self->{base_uri}); | |
734 | ||
735 | my $formatter = get_formatter($format); | |
736 | ||
737 | if (!defined($formatter)) { | |
738 | $self->error($reqstate, HTTP_NOT_IMPLEMENTED, "no such uri $rel_uri, $format"); | |
739 | return; | |
740 | } | |
741 | ||
742 | #print Dumper($upload_state) if $upload_state; | |
743 | ||
744 | my $rpcenv = $self->{rpcenv}; | |
745 | ||
746 | my $params; | |
747 | ||
748 | if ($upload_state) { | |
749 | $params = $upload_state->{params}; | |
750 | } else { | |
751 | $params = extract_params($r, $method); | |
752 | } | |
753 | ||
754 | delete $params->{_dc}; # remove disable cache parameter | |
755 | ||
756 | my $clientip = $reqstate->{peer_host}; | |
757 | ||
758 | $rpcenv->init_request(); | |
759 | ||
760 | my $res = $self->rest_handler($clientip, $method, $rel_uri, $auth, $params); | |
761 | ||
762 | AnyEvent->now_update(); # in case somebody called sleep() | |
763 | ||
764 | $rpcenv->set_user(undef); # clear after request | |
765 | ||
766 | my $upgrade = $r->header('upgrade'); | |
767 | $upgrade = lc($upgrade) if $upgrade; | |
768 | ||
769 | if (my $host = $res->{proxy}) { | |
770 | ||
771 | if ($self->{trusted_env}) { | |
772 | $self->error($reqstate, HTTP_INTERNAL_SERVER_ERROR, "proxy not allowed"); | |
773 | return; | |
774 | } | |
775 | ||
776 | if ($host ne 'localhost' && $r->header('PVEDisableProxy')) { | |
777 | $self->error($reqstate, HTTP_INTERNAL_SERVER_ERROR, "proxy loop detected"); | |
778 | return; | |
779 | } | |
780 | ||
781 | $res->{proxy_params}->{tmpfilename} = $reqstate->{tmpfilename} if $upload_state; | |
782 | ||
783 | $self->proxy_request($reqstate, $clientip, $host, $res->{proxynode}, $method, | |
784 | $r->uri, $auth->{ticket}, $auth->{token}, $res->{proxy_params}, $res->{proxynode}); | |
785 | return; | |
786 | ||
787 | } elsif ($upgrade && ($method eq 'GET') && ($path =~ m|websocket$|)) { | |
788 | die "unable to upgrade to protocol '$upgrade'\n" if !$upgrade || ($upgrade ne 'websocket'); | |
789 | my $wsver = $r->header('sec-websocket-version'); | |
790 | die "unsupported websocket-version '$wsver'\n" if !$wsver || ($wsver ne '13'); | |
791 | my $wsproto_str = $r->header('sec-websocket-protocol'); | |
792 | die "missing websocket-protocol header" if !$wsproto_str; | |
793 | my $wsproto; | |
794 | foreach my $p (PVE::Tools::split_list($wsproto_str)) { | |
795 | $wsproto = $p if !$wsproto && $p eq 'base64'; | |
796 | $wsproto = $p if $p eq 'binary'; | |
797 | } | |
798 | die "unsupported websocket-protocol protocol '$wsproto_str'\n" if !$wsproto; | |
799 | my $wskey = $r->header('sec-websocket-key'); | |
800 | die "missing websocket-key\n" if !$wskey; | |
801 | # Note: Digest::SHA::sha1_base64 has wrong padding | |
802 | my $wsaccept = Digest::SHA::sha1_base64("${wskey}258EAFA5-E914-47DA-95CA-C5AB0DC85B11") . "="; | |
803 | if ($res->{status} == HTTP_OK) { | |
804 | $self->websocket_proxy($reqstate, $wsaccept, $wsproto, $res->{data}); | |
805 | return; | |
806 | } | |
807 | } | |
808 | ||
809 | my $delay = 0; | |
810 | if ($res->{status} == HTTP_UNAUTHORIZED) { | |
811 | # always delay unauthorized calls by 3 seconds | |
812 | $delay = 3 - tv_interval($reqstate->{starttime}); | |
813 | $delay = 0 if $delay < 0; | |
814 | } | |
815 | ||
816 | if ($res->{info} && $res->{info}->{formatter}) { | |
817 | if (defined(my $func = $res->{info}->{formatter}->{$format})) { | |
818 | $formatter = $func; | |
819 | } | |
820 | } | |
821 | ||
822 | my ($raw, $ct, $nocomp) = &$formatter($res, $res->{data}, $params, $path, $auth); | |
823 | ||
824 | my $resp; | |
825 | if (ref($raw) && (ref($raw) eq 'HTTP::Response')) { | |
826 | $resp = $raw; | |
827 | } else { | |
828 | $resp = HTTP::Response->new($res->{status}, $res->{message}); | |
829 | $resp->header("Content-Type" => $ct); | |
830 | $resp->content($raw); | |
831 | } | |
832 | $self->response($reqstate, $resp, undef, $nocomp, $delay); | |
833 | }; | |
834 | if (my $err = $@) { | |
835 | $self->error($reqstate, 501, $err); | |
836 | } | |
837 | } | |
838 | ||
839 | sub handle_spice_proxy_request { | |
840 | my ($self, $reqstate, $connect_str, $vmid, $node, $spiceport) = @_; | |
841 | ||
842 | eval { | |
843 | ||
844 | die "Port $spiceport is not allowed" if ($spiceport < 61000 || $spiceport > 61099); | |
845 | ||
846 | my $rpcenv = $self->{rpcenv}; | |
847 | $rpcenv->init_request(); | |
848 | ||
849 | my $clientip = $reqstate->{peer_host}; | |
850 | my $r = $reqstate->{request}; | |
851 | ||
852 | my $remip; | |
853 | ||
854 | if ($node ne 'localhost' && PVE::INotify::nodename() !~ m/^$node$/i) { | |
855 | $remip = $self->remote_node_ip($node); | |
856 | print "REMOTE CONNECT $vmid, $remip, $connect_str\n" if $self->{debug}; | |
857 | } else { | |
858 | print "$$: CONNECT $vmid, $node, $spiceport\n" if $self->{debug}; | |
859 | } | |
860 | ||
861 | if ($remip && $r->header('PVEDisableProxy')) { | |
862 | $self->error($reqstate, HTTP_INTERNAL_SERVER_ERROR, "proxy loop detected"); | |
863 | return; | |
864 | } | |
865 | ||
866 | $reqstate->{hdl}->timeout(0); | |
867 | $reqstate->{hdl}->wbuf_max(64*10*1024); | |
868 | ||
869 | my $remhost = $remip ? $remip : "localhost"; | |
870 | my $remport = $remip ? 3128 : $spiceport; | |
871 | ||
872 | tcp_connect $remhost, $remport, sub { | |
873 | my ($fh) = @_ | |
874 | or die "connect to '$remhost:$remport' failed: $!"; | |
875 | ||
876 | print "$$: CONNECTed to '$remhost:$remport'\n" if $self->{debug}; | |
877 | $reqstate->{proxyhdl} = AnyEvent::Handle->new( | |
878 | fh => $fh, | |
879 | rbuf_max => 64*1024, | |
880 | wbuf_max => 64*10*1024, | |
881 | timeout => 5, | |
882 | on_eof => sub { | |
883 | my ($hdl) = @_; | |
884 | eval { | |
885 | $self->log_aborted_request($reqstate); | |
886 | $self->client_do_disconnect($reqstate); | |
887 | }; | |
888 | if (my $err = $@) { syslog('err', $err); } | |
889 | }, | |
890 | on_error => sub { | |
891 | my ($hdl, $fatal, $message) = @_; | |
892 | eval { | |
893 | $self->log_aborted_request($reqstate, $message); | |
894 | $self->client_do_disconnect($reqstate); | |
895 | }; | |
896 | if (my $err = $@) { syslog('err', "$err"); } | |
897 | }); | |
898 | ||
899 | ||
900 | my $proxyhdlreader = sub { | |
901 | my ($hdl) = @_; | |
902 | ||
903 | my $len = length($hdl->{rbuf}); | |
904 | my $data = substr($hdl->{rbuf}, 0, $len, ''); | |
905 | ||
906 | #print "READ1 $len\n"; | |
907 | $reqstate->{hdl}->push_write($data) if $reqstate->{hdl}; | |
908 | }; | |
909 | ||
910 | my $hdlreader = sub { | |
911 | my ($hdl) = @_; | |
912 | ||
913 | my $len = length($hdl->{rbuf}); | |
914 | my $data = substr($hdl->{rbuf}, 0, $len, ''); | |
915 | ||
916 | #print "READ0 $len\n"; | |
917 | $reqstate->{proxyhdl}->push_write($data) if $reqstate->{proxyhdl}; | |
918 | }; | |
919 | ||
920 | my $proto = $reqstate->{proto} ? $reqstate->{proto}->{str} : 'HTTP/1.0'; | |
921 | ||
922 | my $startproxy = sub { | |
923 | $reqstate->{proxyhdl}->timeout(0); | |
924 | $reqstate->{proxyhdl}->on_read($proxyhdlreader); | |
925 | $reqstate->{hdl}->on_read($hdlreader); | |
926 | ||
927 | # todo: use stop_read/start_read if write buffer grows to much | |
928 | ||
929 | my $res = "$proto 200 OK\015\012"; # hope this is the right answer? | |
930 | $reqstate->{hdl}->push_write($res); | |
931 | ||
932 | # log early | |
933 | $reqstate->{log}->{code} = 200; | |
934 | $self->log_request($reqstate); | |
935 | }; | |
936 | ||
937 | if ($remip) { | |
938 | my $header = "CONNECT ${connect_str} $proto\015\012" . | |
939 | "Host: ${connect_str}\015\012" . | |
940 | "Proxy-Connection: keep-alive\015\012" . | |
941 | "User-Agent: spiceproxy\015\012" . | |
942 | "PVEDisableProxy: true\015\012" . | |
943 | "PVEClientIP: $clientip\015\012" . | |
944 | "\015\012"; | |
945 | ||
946 | $reqstate->{proxyhdl}->push_write($header); | |
947 | $reqstate->{proxyhdl}->push_read(line => sub { | |
948 | my ($hdl, $line) = @_; | |
949 | ||
950 | if ($line =~ m!^$proto 200 OK$!) { | |
951 | &$startproxy(); | |
952 | } else { | |
953 | $reqstate->{hdl}->push_write($line); | |
954 | $self->client_do_disconnect($reqstate); | |
955 | } | |
956 | }); | |
957 | } else { | |
958 | &$startproxy(); | |
959 | } | |
960 | ||
961 | }; | |
962 | }; | |
963 | if (my $err = $@) { | |
964 | warn $err; | |
965 | $self->log_aborted_request($reqstate, $err); | |
966 | $self->client_do_disconnect($reqstate); | |
967 | } | |
968 | } | |
969 | ||
970 | sub handle_request { | |
971 | my ($self, $reqstate, $auth, $method, $path) = @_; | |
972 | ||
973 | my $base_uri = $self->{base_uri}; | |
974 | ||
975 | eval { | |
976 | my $r = $reqstate->{request}; | |
977 | ||
978 | # disable timeout on handle (we already have all data we need) | |
979 | # we re-enable timeout in response() | |
980 | $reqstate->{hdl}->timeout(0); | |
981 | ||
982 | if ($path =~ m/^\Q$base_uri\E/) { | |
983 | $self->handle_api2_request($reqstate, $auth, $method, $path); | |
984 | return; | |
985 | } | |
986 | ||
987 | if ($self->{pages} && ($method eq 'GET') && (my $handler = $self->{pages}->{$path})) { | |
988 | if (ref($handler) eq 'CODE') { | |
989 | my $params = decode_urlencoded($r->url->query()); | |
990 | my ($resp, $userid) = &$handler($self, $reqstate->{request}, $params); | |
991 | $self->response($reqstate, $resp); | |
992 | } elsif (ref($handler) eq 'HASH') { | |
993 | if (my $filename = $handler->{file}) { | |
994 | my $fh = IO::File->new($filename) || | |
995 | die "unable to open file '$filename' - $!\n"; | |
996 | send_file_start($self, $reqstate, $filename); | |
997 | } else { | |
998 | die "internal error - no handler"; | |
999 | } | |
1000 | } else { | |
1001 | die "internal error - no handler"; | |
1002 | } | |
1003 | return; | |
1004 | } | |
1005 | ||
1006 | if ($self->{dirs} && ($method eq 'GET')) { | |
1007 | # we only allow simple names | |
1008 | if ($path =~ m!^(/\S+/)([a-zA-Z0-9\-\_\.]+)$!) { | |
1009 | my ($subdir, $file) = ($1, $2); | |
1010 | if (my $dir = $self->{dirs}->{$subdir}) { | |
1011 | my $filename = "$dir$file"; | |
1012 | my $fh = IO::File->new($filename) || | |
1013 | die "unable to open file '$filename' - $!\n"; | |
1014 | send_file_start($self, $reqstate, $filename); | |
1015 | return; | |
1016 | } | |
1017 | } | |
1018 | } | |
1019 | ||
1020 | die "no such file '$path'"; | |
1021 | }; | |
1022 | if (my $err = $@) { | |
1023 | $self->error($reqstate, 501, $err); | |
1024 | } | |
1025 | } | |
1026 | ||
1027 | sub file_upload_multipart { | |
1028 | my ($self, $reqstate, $auth, $method, $path, $rstate) = @_; | |
1029 | ||
1030 | eval { | |
1031 | my $boundary = $rstate->{boundary}; | |
1032 | my $hdl = $reqstate->{hdl}; | |
1033 | ||
1034 | my $startlen = length($hdl->{rbuf}); | |
1035 | ||
1036 | if ($rstate->{phase} == 0) { # skip everything until start | |
1037 | if ($hdl->{rbuf} =~ s/^.*?--\Q$boundary\E \015?\012 | |
1038 | ((?:[^\015]+\015\012)* ) \015?\012//xs) { | |
1039 | my $header = $1; | |
1040 | my ($ct, $disp, $name, $filename); | |
1041 | foreach my $line (split(/\015?\012/, $header)) { | |
1042 | # assume we have single line headers | |
1043 | if ($line =~ m/^Content-Type\s*:\s*(.*)/i) { | |
1044 | $ct = parse_content_type($1); | |
1045 | } elsif ($line =~ m/^Content-Disposition\s*:\s*(.*)/i) { | |
1046 | ($disp, $name, $filename) = parse_content_disposition($1); | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | if (!($disp && $disp eq 'form-data' && $name)) { | |
1051 | syslog('err', "wrong content disposition in multipart - abort upload"); | |
1052 | $rstate->{phase} = -1; | |
1053 | } else { | |
1054 | ||
1055 | $rstate->{fieldname} = $name; | |
1056 | ||
1057 | if ($filename) { | |
1058 | if ($name eq 'filename') { | |
1059 | # found file upload data | |
1060 | $rstate->{phase} = 1; | |
1061 | $rstate->{filename} = $filename; | |
1062 | } else { | |
1063 | syslog('err', "wrong field name for file upload - abort upload"); | |
1064 | $rstate->{phase} = -1; | |
1065 | } | |
1066 | } else { | |
1067 | # found form data for field $name | |
1068 | $rstate->{phase} = 2; | |
1069 | } | |
1070 | } | |
1071 | } else { | |
1072 | my $len = length($hdl->{rbuf}); | |
1073 | substr($hdl->{rbuf}, 0, $len - $rstate->{maxheader}, '') | |
1074 | if $len > $rstate->{maxheader}; # skip garbage | |
1075 | } | |
1076 | } elsif ($rstate->{phase} == 1) { # inside file - dump until end marker | |
1077 | if ($hdl->{rbuf} =~ s/^(.*?)\015?\012(--\Q$boundary\E(--)? \015?\012(.*))$/$2/xs) { | |
1078 | my ($rest, $eof) = ($1, $3); | |
1079 | my $len = length($rest); | |
1080 | die "write to temporary file failed - $!" | |
1081 | if syswrite($rstate->{outfh}, $rest) != $len; | |
1082 | $rstate->{ctx}->add($rest); | |
1083 | $rstate->{params}->{filename} = $rstate->{filename}; | |
1084 | $rstate->{md5sum} = $rstate->{ctx}->hexdigest; | |
1085 | $rstate->{bytes} += $len; | |
1086 | $rstate->{phase} = $eof ? 100 : 0; | |
1087 | } else { | |
1088 | my $len = length($hdl->{rbuf}); | |
1089 | my $wlen = $len - $rstate->{boundlen}; | |
1090 | if ($wlen > 0) { | |
1091 | my $data = substr($hdl->{rbuf}, 0, $wlen, ''); | |
1092 | die "write to temporary file failed - $!" | |
1093 | if syswrite($rstate->{outfh}, $data) != $wlen; | |
1094 | $rstate->{bytes} += $wlen; | |
1095 | $rstate->{ctx}->add($data); | |
1096 | } | |
1097 | } | |
1098 | } elsif ($rstate->{phase} == 2) { # inside normal field | |
1099 | ||
1100 | if ($hdl->{rbuf} =~ s/^(.*?)\015?\012(--\Q$boundary\E(--)? \015?\012(.*))$/$2/xs) { | |
1101 | my ($rest, $eof) = ($1, $3); | |
1102 | my $len = length($rest); | |
1103 | $rstate->{post_size} += $len; | |
1104 | if ($rstate->{post_size} < $limit_max_post) { | |
1105 | $rstate->{params}->{$rstate->{fieldname}} = $rest; | |
1106 | $rstate->{phase} = $eof ? 100 : 0; | |
1107 | } else { | |
1108 | syslog('err', "form data to large - abort upload"); | |
1109 | $rstate->{phase} = -1; # skip | |
1110 | } | |
1111 | } | |
1112 | } else { # skip | |
1113 | my $len = length($hdl->{rbuf}); | |
1114 | substr($hdl->{rbuf}, 0, $len, ''); # empty rbuf | |
1115 | } | |
1116 | ||
1117 | $rstate->{read} += ($startlen - length($hdl->{rbuf})); | |
1118 | ||
1119 | if (!$rstate->{done} && ($rstate->{read} + length($hdl->{rbuf})) >= $rstate->{size}) { | |
1120 | $rstate->{done} = 1; # make sure we dont get called twice | |
1121 | if ($rstate->{phase} < 0 || !$rstate->{md5sum}) { | |
1122 | die "upload failed\n"; | |
1123 | } else { | |
1124 | my $elapsed = tv_interval($rstate->{starttime}); | |
1125 | ||
1126 | my $rate = int($rstate->{bytes}/($elapsed*1024*1024)); | |
1127 | syslog('info', "multipart upload complete " . | |
1128 | "(size: %d time: %ds rate: %.2fMiB/s md5sum: $rstate->{md5sum})", | |
1129 | $rstate->{bytes}, $elapsed, $rate); | |
1130 | $self->handle_api2_request($reqstate, $auth, $method, $path, $rstate); | |
1131 | } | |
1132 | } | |
1133 | }; | |
1134 | if (my $err = $@) { | |
1135 | syslog('err', $err); | |
1136 | $self->error($reqstate, 501, $err); | |
1137 | } | |
1138 | } | |
1139 | ||
1140 | sub parse_content_type { | |
1141 | my ($ctype) = @_; | |
1142 | ||
1143 | my ($ct, @params) = split(/\s*[;,]\s*/o, $ctype); | |
1144 | ||
1145 | foreach my $v (@params) { | |
1146 | if ($v =~ m/^\s*boundary\s*=\s*(\S+?)\s*$/o) { | |
1147 | return wantarray ? ($ct, $1) : $ct; | |
1148 | } | |
1149 | } | |
1150 | ||
1151 | return wantarray ? ($ct) : $ct; | |
1152 | } | |
1153 | ||
1154 | sub parse_content_disposition { | |
1155 | my ($line) = @_; | |
1156 | ||
1157 | my ($disp, @params) = split(/\s*[;,]\s*/o, $line); | |
1158 | my $name; | |
1159 | my $filename; | |
1160 | ||
1161 | foreach my $v (@params) { | |
1162 | if ($v =~ m/^\s*name\s*=\s*(\S+?)\s*$/o) { | |
1163 | $name = $1; | |
1164 | $name =~ s/^"(.*)"$/$1/; | |
1165 | } elsif ($v =~ m/^\s*filename\s*=\s*(.+?)\s*$/o) { | |
1166 | $filename = $1; | |
1167 | $filename =~ s/^"(.*)"$/$1/; | |
1168 | } | |
1169 | } | |
1170 | ||
1171 | return wantarray ? ($disp, $name, $filename) : $disp; | |
1172 | } | |
1173 | ||
1174 | my $tmpfile_seq_no = 0; | |
1175 | ||
1176 | sub get_upload_filename { | |
1177 | # choose unpredictable tmpfile name | |
1178 | ||
1179 | $tmpfile_seq_no++; | |
1180 | return "/var/tmp/pveupload-" . Digest::MD5::md5_hex($tmpfile_seq_no . time() . $$); | |
1181 | } | |
1182 | ||
1183 | sub unshift_read_header { | |
1184 | my ($self, $reqstate, $state) = @_; | |
1185 | ||
1186 | $state = { size => 0, count => 0 } if !$state; | |
1187 | ||
1188 | $reqstate->{hdl}->unshift_read(line => sub { | |
1189 | my ($hdl, $line) = @_; | |
1190 | ||
1191 | eval { | |
1192 | # print "$$: got header: $line\n" if $self->{debug}; | |
1193 | ||
1194 | die "to many http header lines\n" if ++$state->{count} >= $limit_max_headers; | |
1195 | die "http header too large\n" if ($state->{size} += length($line)) >= $limit_max_header_size; | |
1196 | ||
1197 | my $r = $reqstate->{request}; | |
1198 | if ($line eq '') { | |
1199 | ||
1200 | my $path = uri_unescape($r->uri->path()); | |
1201 | my $method = $r->method(); | |
1202 | ||
1203 | $r->push_header($state->{key}, $state->{val}) | |
1204 | if $state->{key}; | |
1205 | ||
1206 | if (!$known_methods->{$method}) { | |
1207 | my $resp = HTTP::Response->new(HTTP_NOT_IMPLEMENTED, "method '$method' not available"); | |
1208 | $self->response($reqstate, $resp); | |
1209 | return; | |
1210 | } | |
1211 | ||
1212 | my $conn = $r->header('Connection'); | |
1213 | my $accept_enc = $r->header('Accept-Encoding'); | |
1214 | $reqstate->{accept_gzip} = ($accept_enc && $accept_enc =~ m/gzip/) ? 1 : 0; | |
1215 | ||
1216 | if ($conn) { | |
1217 | $reqstate->{keep_alive} = 0 if $conn =~ m/close/oi; | |
1218 | } else { | |
1219 | if ($reqstate->{proto}->{ver} < 1001) { | |
1220 | $reqstate->{keep_alive} = 0; | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | my $te = $r->header('Transfer-Encoding'); | |
1225 | if ($te && lc($te) eq 'chunked') { | |
1226 | # Handle chunked transfer encoding | |
1227 | $self->error($reqstate, 501, "chunked transfer encoding not supported"); | |
1228 | return; | |
1229 | } elsif ($te) { | |
1230 | $self->error($reqstate, 501, "Unknown transfer encoding '$te'"); | |
1231 | return; | |
1232 | } | |
1233 | ||
1234 | my $pveclientip = $r->header('PVEClientIP'); | |
1235 | my $base_uri = $self->{base_uri}; | |
1236 | ||
1237 | # fixme: how can we make PVEClientIP header trusted? | |
1238 | if ($self->{trusted_env} && $pveclientip) { | |
1239 | $reqstate->{peer_host} = $pveclientip; | |
1240 | } else { | |
1241 | $r->header('PVEClientIP', $reqstate->{peer_host}); | |
1242 | } | |
1243 | ||
1244 | my $len = $r->header('Content-Length'); | |
1245 | ||
1246 | # header processing complete - authenticate now | |
1247 | ||
1248 | my $auth = {}; | |
1249 | if ($self->{spiceproxy}) { | |
1250 | my $connect_str = $r->header('Host'); | |
1251 | my ($vmid, $node, $port) = PVE::AccessControl::verify_spice_connect_url($connect_str); | |
1252 | if (!(defined($vmid) && $node && $port)) { | |
1253 | $self->error($reqstate, HTTP_UNAUTHORIZED, "invalid ticket"); | |
1254 | return; | |
1255 | } | |
1256 | $self->handle_spice_proxy_request($reqstate, $connect_str, $vmid, $node, $port); | |
1257 | return; | |
1258 | } elsif ($path =~ m/^\Q$base_uri\E/) { | |
1259 | my $token = $r->header('CSRFPreventionToken'); | |
1260 | my $cookie = $r->header('Cookie'); | |
1261 | my $ticket = extract_auth_cookie($cookie, $self->{cookie_name}); | |
1262 | ||
1263 | my ($rel_uri, $format) = &$split_abs_uri($path, $self->{base_uri}); | |
1264 | if (!$format) { | |
1265 | $self->error($reqstate, HTTP_NOT_IMPLEMENTED, "no such uri"); | |
1266 | return; | |
1267 | } | |
1268 | ||
1269 | my $rpcenv = $self->{rpcenv}; | |
1270 | # set environment variables | |
1271 | $rpcenv->set_user(undef); | |
1272 | $rpcenv->set_language('C'); | |
1273 | $rpcenv->set_client_ip($reqstate->{peer_host}); | |
1274 | ||
1275 | eval { | |
1276 | $auth = $self->auth_handler($method, $rel_uri, $ticket, $token); | |
1277 | }; | |
1278 | if (my $err = $@) { | |
1279 | # always delay unauthorized calls by 3 seconds | |
1280 | my $delay = 3; | |
1281 | if (my $formatter = get_login_formatter($format)) { | |
1282 | my ($raw, $ct, $nocomp) = &$formatter($path, $auth); | |
1283 | my $resp; | |
1284 | if (ref($raw) && (ref($raw) eq 'HTTP::Response')) { | |
1285 | $resp = $raw; | |
1286 | } else { | |
1287 | $resp = HTTP::Response->new(HTTP_UNAUTHORIZED, "Login Required"); | |
1288 | $resp->header("Content-Type" => $ct); | |
1289 | $resp->content($raw); | |
1290 | } | |
1291 | $self->response($reqstate, $resp, undef, $nocomp, 3); | |
1292 | } else { | |
1293 | my $resp = HTTP::Response->new(HTTP_UNAUTHORIZED, $err); | |
1294 | $self->response($reqstate, $resp, undef, 0, $delay); | |
1295 | } | |
1296 | return; | |
1297 | } | |
1298 | } | |
1299 | ||
1300 | $reqstate->{log}->{userid} = $auth->{userid}; | |
1301 | ||
1302 | if ($len) { | |
1303 | ||
1304 | if (!($method eq 'PUT' || $method eq 'POST')) { | |
1305 | $self->error($reqstate, 501, "Unexpected content for method '$method'"); | |
1306 | return; | |
1307 | } | |
1308 | ||
1309 | my $ctype = $r->header('Content-Type'); | |
1310 | my ($ct, $boundary) = parse_content_type($ctype) if $ctype; | |
1311 | ||
1312 | if ($auth->{isUpload} && !$self->{trusted_env}) { | |
1313 | die "upload 'Content-Type '$ctype' not implemented\n" | |
1314 | if !($boundary && $ct && ($ct eq 'multipart/form-data')); | |
1315 | ||
1316 | die "upload without content length header not supported" if !$len; | |
1317 | ||
1318 | die "upload without content length header not supported" if !$len; | |
1319 | ||
1320 | print "start upload $path $ct $boundary\n" if $self->{debug}; | |
1321 | ||
1322 | my $tmpfilename = get_upload_filename(); | |
1323 | my $outfh = IO::File->new($tmpfilename, O_RDWR|O_CREAT|O_EXCL, 0600) || | |
1324 | die "unable to create temporary upload file '$tmpfilename'"; | |
1325 | ||
1326 | $reqstate->{keep_alive} = 0; | |
1327 | ||
1328 | my $boundlen = length($boundary) + 8; # \015?\012--$boundary--\015?\012 | |
1329 | ||
1330 | my $state = { | |
1331 | size => $len, | |
1332 | boundary => $boundary, | |
1333 | ctx => Digest::MD5->new, | |
1334 | boundlen => $boundlen, | |
1335 | maxheader => 2048 + $boundlen, # should be large enough | |
1336 | params => decode_urlencoded($r->url->query()), | |
1337 | phase => 0, | |
1338 | read => 0, | |
1339 | post_size => 0, | |
1340 | starttime => [gettimeofday], | |
1341 | outfh => $outfh, | |
1342 | }; | |
1343 | $reqstate->{tmpfilename} = $tmpfilename; | |
1344 | $reqstate->{hdl}->on_read(sub { $self->file_upload_multipart($reqstate, $auth, $method, $path, $state); }); | |
1345 | return; | |
1346 | } | |
1347 | ||
1348 | if ($len > $limit_max_post) { | |
1349 | $self->error($reqstate, 501, "for data too large"); | |
1350 | return; | |
1351 | } | |
1352 | ||
1353 | if (!$ct || $ct eq 'application/x-www-form-urlencoded') { | |
1354 | $reqstate->{hdl}->unshift_read(chunk => $len, sub { | |
1355 | my ($hdl, $data) = @_; | |
1356 | $r->content($data); | |
1357 | $self->handle_request($reqstate, $auth, $method, $path); | |
1358 | }); | |
1359 | } else { | |
1360 | $self->error($reqstate, 506, "upload 'Content-Type '$ctype' not implemented"); | |
1361 | } | |
1362 | } else { | |
1363 | $self->handle_request($reqstate, $auth, $method, $path); | |
1364 | } | |
1365 | } elsif ($line =~ /^([^:\s]+)\s*:\s*(.*)/) { | |
1366 | $r->push_header($state->{key}, $state->{val}) if $state->{key}; | |
1367 | ($state->{key}, $state->{val}) = ($1, $2); | |
1368 | $self->unshift_read_header($reqstate, $state); | |
1369 | } elsif ($line =~ /^\s+(.*)/) { | |
1370 | $state->{val} .= " $1"; | |
1371 | $self->unshift_read_header($reqstate, $state); | |
1372 | } else { | |
1373 | $self->error($reqstate, 506, "unable to parse request header"); | |
1374 | } | |
1375 | }; | |
1376 | warn $@ if $@; | |
1377 | }); | |
1378 | }; | |
1379 | ||
1380 | sub push_request_header { | |
1381 | my ($self, $reqstate) = @_; | |
1382 | ||
1383 | eval { | |
1384 | $reqstate->{hdl}->push_read(line => sub { | |
1385 | my ($hdl, $line) = @_; | |
1386 | ||
1387 | eval { | |
1388 | # print "got request header: $line\n" if $self->{debug}; | |
1389 | ||
1390 | $reqstate->{keep_alive}--; | |
1391 | ||
1392 | if ($line =~ /(\S+)\040(\S+)\040HTTP\/(\d+)\.(\d+)/o) { | |
1393 | my ($method, $url, $maj, $min) = ($1, $2, $3, $4); | |
1394 | ||
1395 | if ($maj != 1) { | |
1396 | $self->error($reqstate, 506, "http protocol version $maj.$min not supported"); | |
1397 | return; | |
1398 | } | |
1399 | ||
1400 | $self->{request_count}++; # only count valid request headers | |
1401 | if ($self->{request_count} >= $self->{max_requests}) { | |
1402 | $self->{end_loop} = 1; | |
1403 | } | |
1404 | $reqstate->{log} = { requestline => $line }; | |
1405 | $reqstate->{proto}->{str} = "HTTP/$maj.$min"; | |
1406 | $reqstate->{proto}->{maj} = $maj; | |
1407 | $reqstate->{proto}->{min} = $min; | |
1408 | $reqstate->{proto}->{ver} = $maj*1000+$min; | |
1409 | $reqstate->{request} = HTTP::Request->new($method, $url); | |
1410 | $reqstate->{starttime} = [gettimeofday], | |
1411 | ||
1412 | $self->unshift_read_header($reqstate); | |
1413 | } elsif ($line eq '') { | |
1414 | # ignore empty lines before requests (browser bugs?) | |
1415 | $self->push_request_header($reqstate); | |
1416 | } else { | |
1417 | $self->error($reqstate, 400, 'bad request'); | |
1418 | } | |
1419 | }; | |
1420 | warn $@ if $@; | |
1421 | }); | |
1422 | }; | |
1423 | warn $@ if $@; | |
1424 | } | |
1425 | ||
1426 | sub accept { | |
1427 | my ($self) = @_; | |
1428 | ||
1429 | my $clientfh; | |
1430 | ||
1431 | return if $self->{end_loop}; | |
1432 | ||
1433 | # we need to m make sure that only one process calls accept | |
1434 | while (!flock($self->{lockfh}, Fcntl::LOCK_EX())) { | |
1435 | next if $! == EINTR; | |
1436 | die "could not get lock on file '$self->{lockfile}' - $!\n"; | |
1437 | } | |
1438 | ||
1439 | my $again = 0; | |
1440 | my $errmsg; | |
1441 | eval { | |
1442 | while (!$self->{end_loop} && | |
1443 | !defined($clientfh = $self->{socket}->accept()) && | |
1444 | ($! == EINTR)) {}; | |
1445 | ||
1446 | if ($self->{end_loop}) { | |
1447 | $again = 0; | |
1448 | } else { | |
1449 | $again = ($! == EAGAIN || $! == WSAEWOULDBLOCK); | |
1450 | if (!defined($clientfh)) { | |
1451 | $errmsg = "failed to accept connection: $!\n"; | |
1452 | } | |
1453 | } | |
1454 | }; | |
1455 | warn $@ if $@; | |
1456 | ||
1457 | flock($self->{lockfh}, Fcntl::LOCK_UN()); | |
1458 | ||
1459 | if (!defined($clientfh)) { | |
1460 | return if $again; | |
1461 | die $errmsg if $errmsg; | |
1462 | } | |
1463 | ||
1464 | fh_nonblocking $clientfh, 1; | |
1465 | ||
1466 | $self->{conn_count}++; | |
1467 | ||
1468 | return $clientfh; | |
1469 | } | |
1470 | ||
1471 | sub wait_end_loop { | |
1472 | my ($self) = @_; | |
1473 | ||
1474 | $self->{end_loop} = 1; | |
1475 | ||
1476 | undef $self->{socket_watch}; | |
1477 | ||
1478 | $0 = "$0 (shutdown)" if $0 !~ m/\(shutdown\)$/; | |
1479 | ||
1480 | if ($self->{conn_count} <= 0) { | |
1481 | $self->{end_cond}->send(1); | |
1482 | return; | |
1483 | } | |
1484 | ||
1485 | # fork and exit, so that parent starts a new worker | |
1486 | if (fork()) { | |
1487 | exit(0); | |
1488 | } | |
1489 | ||
1490 | # else we need to wait until all open connections gets closed | |
1491 | my $w; $w = AnyEvent->timer (after => 1, interval => 1, cb => sub { | |
1492 | eval { | |
1493 | # todo: test for active connections instead (we can abort idle connections) | |
1494 | if ($self->{conn_count} <= 0) { | |
1495 | undef $w; | |
1496 | $self->{end_cond}->send(1); | |
1497 | } | |
1498 | }; | |
1499 | warn $@ if $@; | |
1500 | }); | |
1501 | } | |
1502 | ||
1503 | ||
1504 | sub check_host_access { | |
1505 | my ($self, $clientip) = @_; | |
1506 | ||
1507 | my $cip = Net::IP->new($clientip); | |
1508 | ||
1509 | my $match_allow = 0; | |
1510 | my $match_deny = 0; | |
1511 | ||
1512 | if ($self->{allow_from}) { | |
1513 | foreach my $t (@{$self->{allow_from}}) { | |
1514 | if ($t->overlaps($cip)) { | |
1515 | $match_allow = 1; | |
1516 | last; | |
1517 | } | |
1518 | } | |
1519 | } | |
1520 | ||
1521 | if ($self->{deny_from}) { | |
1522 | foreach my $t (@{$self->{deny_from}}) { | |
1523 | if ($t->overlaps($cip)) { | |
1524 | $match_deny = 1; | |
1525 | last; | |
1526 | } | |
1527 | } | |
1528 | } | |
1529 | ||
1530 | if ($match_allow == $match_deny) { | |
1531 | # match both allow and deny, or no match | |
1532 | return $self->{policy} && $self->{policy} eq 'allow' ? 1 : 0; | |
1533 | } | |
1534 | ||
1535 | return $match_allow; | |
1536 | } | |
1537 | ||
1538 | sub accept_connections { | |
1539 | my ($self) = @_; | |
1540 | ||
1541 | eval { | |
1542 | ||
1543 | while (my $clientfh = $self->accept()) { | |
1544 | ||
1545 | my $reqstate = { keep_alive => $self->{keep_alive} }; | |
1546 | ||
1547 | # stop keep-alive when there are many open connections | |
1548 | if ($self->{conn_count} >= $self->{max_conn_soft_limit}) { | |
1549 | $reqstate->{keep_alive} = 0; | |
1550 | } | |
1551 | ||
1552 | if (my $sin = getpeername($clientfh)) { | |
1553 | my ($pfamily, $pport, $phost) = PVE::Tools::unpack_sockaddr_in46($sin); | |
1554 | ($reqstate->{peer_port}, $reqstate->{peer_host}) = ($pport, Socket::inet_ntop($pfamily, $phost)); | |
1555 | } | |
1556 | ||
1557 | if (!$self->{trusted_env} && !$self->check_host_access($reqstate->{peer_host})) { | |
1558 | print "$$: ABORT request from $reqstate->{peer_host} - access denied\n" if $self->{debug}; | |
1559 | $reqstate->{log}->{code} = 403; | |
1560 | $self->log_request($reqstate); | |
1561 | next; | |
1562 | } | |
1563 | ||
1564 | $reqstate->{hdl} = AnyEvent::Handle->new( | |
1565 | fh => $clientfh, | |
1566 | rbuf_max => 64*1024, | |
1567 | timeout => $self->{timeout}, | |
1568 | linger => 0, # avoid problems with ssh - really needed ? | |
1569 | on_eof => sub { | |
1570 | my ($hdl) = @_; | |
1571 | eval { | |
1572 | $self->log_aborted_request($reqstate); | |
1573 | $self->client_do_disconnect($reqstate); | |
1574 | }; | |
1575 | if (my $err = $@) { syslog('err', $err); } | |
1576 | }, | |
1577 | on_error => sub { | |
1578 | my ($hdl, $fatal, $message) = @_; | |
1579 | eval { | |
1580 | $self->log_aborted_request($reqstate, $message); | |
1581 | $self->client_do_disconnect($reqstate); | |
1582 | }; | |
1583 | if (my $err = $@) { syslog('err', "$err"); } | |
1584 | }, | |
1585 | ($self->{tls_ctx} ? (tls => "accept", tls_ctx => $self->{tls_ctx}) : ())); | |
1586 | ||
1587 | print "$$: ACCEPT FH" . $clientfh->fileno() . " CONN$self->{conn_count}\n" if $self->{debug}; | |
1588 | ||
1589 | $self->push_request_header($reqstate); | |
1590 | } | |
1591 | }; | |
1592 | ||
1593 | if (my $err = $@) { | |
1594 | syslog('err', $err); | |
1595 | $self->{end_loop} = 1; | |
1596 | } | |
1597 | ||
1598 | $self->wait_end_loop() if $self->{end_loop}; | |
1599 | } | |
1600 | ||
1601 | # Note: We can't open log file in non-blocking mode and use AnyEvent::Handle, | |
1602 | # because we write from multiple processes, and that would arbitrarily mix output | |
1603 | # of all processes. | |
1604 | sub open_access_log { | |
1605 | my ($self, $filename) = @_; | |
1606 | ||
1607 | my $old_mask = umask(0137);; | |
1608 | my $logfh = IO::File->new($filename, ">>") || | |
1609 | die "unable to open log file '$filename' - $!\n"; | |
1610 | umask($old_mask); | |
1611 | ||
1612 | $logfh->autoflush(1); | |
1613 | ||
1614 | $self->{logfh} = $logfh; | |
1615 | } | |
1616 | ||
1617 | sub write_log { | |
1618 | my ($self, $data) = @_; | |
1619 | ||
1620 | return if !defined($self->{logfh}) || !$data; | |
1621 | ||
1622 | my $res = $self->{logfh}->print($data); | |
1623 | ||
1624 | if (!$res) { | |
1625 | delete $self->{logfh}; | |
1626 | syslog('err', "error writing access log"); | |
1627 | $self->{end_loop} = 1; # terminate asap | |
1628 | } | |
1629 | } | |
1630 | ||
1631 | sub atfork_handler { | |
1632 | my ($self) = @_; | |
1633 | ||
1634 | eval { | |
1635 | # something else do to ? | |
1636 | close($self->{socket}); | |
1637 | }; | |
1638 | warn $@ if $@; | |
1639 | } | |
1640 | ||
1641 | sub new { | |
1642 | my ($this, %args) = @_; | |
1643 | ||
1644 | my $class = ref($this) || $this; | |
1645 | ||
1646 | foreach my $req (qw(base_handler_class socket lockfh lockfile)) { | |
1647 | die "misssing required argument '$req'" if !defined($args{$req}); | |
1648 | } | |
1649 | ||
1650 | my $self = bless { %args }, $class; | |
1651 | ||
1652 | $self->{cookie_name} //= 'PVEAuthCookie'; | |
1653 | $self->{base_uri} //= "/api2"; | |
1654 | ||
1655 | # init inotify | |
1656 | PVE::INotify::inotify_init(); | |
1657 | ||
1658 | $self->{rpcenv} = PVE::RPCEnvironment->init( | |
1659 | $self->{trusted_env} ? 'priv' : 'pub', atfork => sub { $self-> atfork_handler() }); | |
1660 | ||
1661 | fh_nonblocking($self->{socket}, 1); | |
1662 | ||
1663 | $self->{end_loop} = 0; | |
1664 | $self->{conn_count} = 0; | |
1665 | $self->{request_count} = 0; | |
1666 | $self->{timeout} = 5 if !$self->{timeout}; | |
1667 | $self->{keep_alive} = 0 if !defined($self->{keep_alive}); | |
1668 | $self->{max_conn} = 800 if !$self->{max_conn}; | |
1669 | $self->{max_requests} = 8000 if !$self->{max_requests}; | |
1670 | ||
1671 | $self->{policy} = 'allow' if !$self->{policy}; | |
1672 | ||
1673 | $self->{end_cond} = AnyEvent->condvar; | |
1674 | ||
1675 | if ($self->{ssl}) { | |
1676 | $self->{tls_ctx} = AnyEvent::TLS->new(%{$self->{ssl}}); | |
1677 | # TODO : openssl >= 1.0.2 supports SSL_CTX_set_ecdh_auto to select a curve depending on | |
1678 | # server and client availability from SSL_CTX_set1_curves. | |
1679 | # that way other curves like 25519 can be used. | |
1680 | # openssl 1.0.1 can only support 1 curve at a time. | |
1681 | my $curve = Net::SSLeay::OBJ_txt2nid('prime256v1'); | |
1682 | my $ecdh = Net::SSLeay::EC_KEY_new_by_curve_name($curve); | |
1683 | Net::SSLeay::CTX_set_options($self->{tls_ctx}->{ctx}, &Net::SSLeay::OP_NO_COMPRESSION | &Net::SSLeay::OP_SINGLE_ECDH_USE | &Net::SSLeay::OP_SINGLE_DH_USE); | |
1684 | Net::SSLeay::CTX_set_tmp_ecdh($self->{tls_ctx}->{ctx}, $ecdh); | |
1685 | Net::SSLeay::EC_KEY_free($ecdh); | |
1686 | } | |
1687 | ||
1688 | if ($self->{spiceproxy}) { | |
1689 | $known_methods = { CONNECT => 1 }; | |
1690 | } | |
1691 | ||
1692 | $self->open_access_log($self->{logfile}) if $self->{logfile}; | |
1693 | ||
1694 | $self->{max_conn_soft_limit} = $self->{max_conn} > 100 ? $self->{max_conn} - 20 : $self->{max_conn}; | |
1695 | ||
1696 | $self->{socket_watch} = AnyEvent->io(fh => $self->{socket}, poll => 'r', cb => sub { | |
1697 | eval { | |
1698 | if ($self->{conn_count} >= $self->{max_conn}) { | |
1699 | my $w; $w = AnyEvent->timer (after => 1, interval => 1, cb => sub { | |
1700 | if ($self->{conn_count} < $self->{max_conn}) { | |
1701 | undef $w; | |
1702 | $self->accept_connections(); | |
1703 | } | |
1704 | }); | |
1705 | } else { | |
1706 | $self->accept_connections(); | |
1707 | } | |
1708 | }; | |
1709 | warn $@ if $@; | |
1710 | }); | |
1711 | ||
1712 | $self->{term_watch} = AnyEvent->signal(signal => "TERM", cb => sub { | |
1713 | undef $self->{term_watch}; | |
1714 | $self->wait_end_loop(); | |
1715 | }); | |
1716 | ||
1717 | $self->{quit_watch} = AnyEvent->signal(signal => "QUIT", cb => sub { | |
1718 | undef $self->{quit_watch}; | |
1719 | $self->wait_end_loop(); | |
1720 | }); | |
1721 | ||
1722 | $self->{inotify_poll} = AnyEvent->timer(after => 5, interval => 5, cb => sub { | |
1723 | PVE::INotify::poll(); # read inotify events | |
1724 | }); | |
1725 | ||
1726 | return $self; | |
1727 | } | |
1728 | ||
1729 | sub auth_handler { | |
1730 | my ($self, $method, $rel_uri, $ticket, $token) = @_; | |
1731 | ||
1732 | my $rpcenv = $self->{rpcenv}; | |
1733 | ||
1734 | my $require_auth = 1; | |
1735 | ||
1736 | # explicitly allow some calls without auth | |
1737 | if (($rel_uri eq '/access/domains' && $method eq 'GET') || | |
1738 | ($rel_uri eq '/access/ticket' && ($method eq 'GET' || $method eq 'POST'))) { | |
1739 | $require_auth = 0; | |
1740 | } | |
1741 | ||
1742 | my ($username, $age); | |
1743 | ||
1744 | my $isUpload = 0; | |
1745 | ||
1746 | if ($require_auth) { | |
1747 | ||
1748 | die "No ticket\n" if !$ticket; | |
1749 | ||
1750 | ($username, $age) = PVE::AccessControl::verify_ticket($ticket); | |
1751 | ||
1752 | $rpcenv->set_user($username); | |
1753 | ||
1754 | if ($method eq 'POST' && $rel_uri =~ m|^/nodes/([^/]+)/storage/([^/]+)/upload$|) { | |
1755 | my ($node, $storeid) = ($1, $2); | |
1756 | # we disable CSRF checks if $isUpload is set, | |
1757 | # to improve security we check user upload permission here | |
1758 | my $perm = { check => ['perm', "/storage/$storeid", ['Datastore.AllocateTemplate']] }; | |
1759 | $rpcenv->check_api2_permissions($perm, $username, {}); | |
1760 | $isUpload = 1; | |
1761 | } | |
1762 | ||
1763 | # we skip CSRF check for file upload, because it is | |
1764 | # difficult to pass CSRF HTTP headers with native html forms, | |
1765 | # and it should not be necessary at all. | |
1766 | my $euid = $>; | |
1767 | PVE::AccessControl::verify_csrf_prevention_token($username, $token) | |
1768 | if !$isUpload && ($euid != 0) && ($method ne 'GET'); | |
1769 | } | |
1770 | ||
1771 | return { | |
1772 | ticket => $ticket, | |
1773 | token => $token, | |
1774 | userid => $username, | |
1775 | age => $age, | |
1776 | isUpload => $isUpload, | |
1777 | cookie_name => $self->{cookie_name}, | |
1778 | }; | |
1779 | } | |
1780 | ||
1781 | my $exc_to_res = sub { | |
1782 | my ($info, $err, $status) = @_; | |
1783 | ||
1784 | $status = $status || HTTP_INTERNAL_SERVER_ERROR; | |
1785 | ||
1786 | my $resp = { info => $info }; | |
1787 | if (ref($err) eq "PVE::Exception") { | |
1788 | $resp->{status} = $err->{code} || $status; | |
1789 | $resp->{errors} = $err->{errors} if $err->{errors}; | |
1790 | $resp->{message} = $err->{msg}; | |
1791 | } else { | |
1792 | $resp->{status} = $status; | |
1793 | $resp->{message} = $err; | |
1794 | } | |
1795 | ||
1796 | return $resp; | |
1797 | }; | |
1798 | ||
1799 | sub rest_handler { | |
1800 | my ($self, $clientip, $method, $rel_uri, $auth, $params) = @_; | |
1801 | ||
1802 | my $rpcenv = $self->{rpcenv}; | |
1803 | ||
1804 | my $base_handler_class = $self->{base_handler_class}; | |
1805 | ||
1806 | die "no base handler - internal error" if !$base_handler_class; | |
1807 | ||
1808 | my $uri_param = {}; | |
1809 | my ($handler, $info) = $base_handler_class->find_handler($method, $rel_uri, $uri_param); | |
1810 | if (!$handler || !$info) { | |
1811 | return { | |
1812 | status => HTTP_NOT_IMPLEMENTED, | |
1813 | message => "Method '$method $rel_uri' not implemented", | |
1814 | }; | |
1815 | } | |
1816 | ||
1817 | foreach my $p (keys %{$params}) { | |
1818 | if (defined($uri_param->{$p})) { | |
1819 | return { | |
1820 | status => HTTP_BAD_REQUEST, | |
1821 | message => "Parameter verification failed - duplicate parameter '$p'", | |
1822 | }; | |
1823 | } | |
1824 | $uri_param->{$p} = $params->{$p}; | |
1825 | } | |
1826 | ||
1827 | # check access permissions | |
1828 | eval { $rpcenv->check_api2_permissions($info->{permissions}, $auth->{userid}, $uri_param); }; | |
1829 | if (my $err = $@) { | |
1830 | return &$exc_to_res($info, $err, HTTP_FORBIDDEN); | |
1831 | } | |
1832 | ||
1833 | if ($info->{proxyto}) { | |
1834 | my $remip; | |
1835 | my $node; | |
1836 | eval { | |
1837 | my $pn = $info->{proxyto}; | |
1838 | $node = $uri_param->{$pn}; | |
1839 | die "proxy parameter '$pn' does not exists" if !$node; | |
1840 | ||
1841 | if ($node ne 'localhost' && $node ne PVE::INotify::nodename()) { | |
1842 | die "unable to proxy file uploads" if $auth->{isUpload}; | |
1843 | $remip = $self->remote_node_ip($node); | |
1844 | } | |
1845 | }; | |
1846 | if (my $err = $@) { | |
1847 | return &$exc_to_res($info, $err); | |
1848 | } | |
1849 | if ($remip) { | |
1850 | return { proxy => $remip, proxynode => $node, proxy_params => $params }; | |
1851 | } | |
1852 | } | |
1853 | ||
1854 | my $euid = $>; | |
1855 | if ($info->{protected} && ($euid != 0)) { | |
1856 | return { proxy => 'localhost' , proxy_params => $params } | |
1857 | } | |
1858 | ||
1859 | my $resp = { | |
1860 | info => $info, # useful to format output | |
1861 | status => HTTP_OK, | |
1862 | }; | |
1863 | ||
1864 | eval { | |
1865 | $resp->{data} = $handler->handle($info, $uri_param); | |
1866 | ||
1867 | if (my $count = $rpcenv->get_result_attrib('total')) { | |
1868 | $resp->{total} = $count; | |
1869 | } | |
1870 | if (my $diff = $rpcenv->get_result_attrib('changes')) { | |
1871 | $resp->{changes} = $diff; | |
1872 | } | |
1873 | }; | |
1874 | if (my $err = $@) { | |
1875 | return &$exc_to_res($info, $err); | |
1876 | } | |
1877 | ||
1878 | return $resp; | |
1879 | } | |
1880 | ||
1881 | sub check_cert_fingerprint { | |
1882 | my ($self, $cert) = @_; | |
1883 | ||
1884 | return PVE::Cluster::check_cert_fingerprint($cert); | |
1885 | } | |
1886 | ||
1887 | sub initialize_cert_cache { | |
1888 | my ($self, $node) = @_; | |
1889 | ||
1890 | PVE::Cluster::initialize_cert_cache($node); | |
1891 | } | |
1892 | ||
1893 | sub remote_node_ip { | |
1894 | my ($self, $node) = @_; | |
1895 | ||
1896 | my $remip = PVE::Cluster::remote_node_ip($node); | |
1897 | ||
1898 | die "unable to get remote IP address for node '$node'\n" if !$remip; | |
1899 | ||
1900 | return $remip; | |
1901 | } | |
1902 | ||
1903 | sub run { | |
1904 | my ($self) = @_; | |
1905 | ||
1906 | $self->{end_cond}->recv; | |
1907 | } | |
1908 | ||
1909 | 1; |