/[pxelator]/lib/PXElator/httpd.pm
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Revision 431 - (show annotations)
Mon Sep 14 13:44:42 2009 UTC (14 years, 7 months ago) by dpavlin
File size: 13188 byte(s)
create CouchDB URL from our own so we respect Host: header

1 package httpd;
2
3 use warnings;
4 use strict;
5 use autodie;
6
7 =head1 httpd
8
9 Start with:
10
11 perl -Ilib/PXElator -Mhttpd -e httpd::start
12
13 =cut
14
15 use Data::Dump qw/dump/;
16 use Carp qw/confess/;
17 use File::Slurp;
18 #use JSON;
19 use IO::Socket::INET;
20 use Regexp::Common qw/net/;
21
22 our $title;
23
24 sub html_start {
25 qq{
26 <html>
27 <head>
28 <title>$title</title>
29 </head>
30 <body>
31 }}
32
33 sub html_end {
34 qq{
35 </body>
36 </html>
37 }}
38
39 our $port = 7777;
40
41 use server;
42 our $debug = server::debug;
43 our $url = "http://$server::ip:$port";
44
45 use html;
46 our $static_pids;
47 use progress_bar;
48 use config;
49 use client;
50 use log;
51 use x11;
52 use amt;
53 use boolean;
54 use daemons;
55
56 use kvm;
57 use browser;
58 use network;
59 use ip;
60 use wireshark;
61 use syslogd;
62 use nmap;
63 use ping;
64 use wol;
65
66 use CouchDB;
67
68
69 sub menu {
70 my $couch_url = $url;
71 $couch_url =~ s{:\d+.+}{:5984/_utils/};
72 qq{
73 <div style="font-size: 80%; color: #888">
74 <a href=/ target=/>home</a>
75 <a href=/server target=server>server</a>
76 <a href=/brctl target=brctl>brctl</a>
77 <a href=/ip target=ip>ip</a>
78 <a href=/nmap target=nmap>nmap</a>
79 <a href=/client target=client>client</a>
80 <a href=$couch_url target=couchdb>couchdb</a>
81 </div>
82
83 }}
84
85
86 sub static {
87 my ($client,$path) = @_;
88
89 my $full = "$server::base_dir/tftp/$path";
90
91 return if ! -f $full;
92
93 return if $full =~ m{\.ico$};
94
95 if ( my $pid = fork ) {
96 # parent
97 close($client);
98 $static_pids->{$pid} = $path;
99 return 1;
100 }
101
102 my $type = 'application/octet-stream';
103 $type = 'text/html' if $path =~ m{\.htm};
104 $type = 'application/javascript' if $path =~ m{\.js};
105 $type = 'text/plain' if $path =~ m{\.txt};
106
107 my $size = -s $full || return;
108
109 print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
110
111 open(my $fh, $full);
112
113 my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
114 my $buff;
115 my $pos = 0;
116
117 CouchDB::audit( 'static', { pid => $$, path => $path, type => $type, size => $size, block => $block, peerhost => $client->peerhost });
118
119 progress_bar::start;
120
121 while( my $len = read $fh, $buff, $block ) {
122 print $client $buff;
123 $client->flush;
124 $pos += $len;
125 progress_bar::tick( $path, $pos, $size );
126 }
127 close($fh);
128 close($client);
129
130 print STDERR "\n";
131
132 exit(0);
133 }
134
135 sub ok {
136 qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . html_start() . menu()
137 }
138
139 sub redirect {
140 my $to = shift;
141 $to ||= $url;
142 qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $to\r\n\r\n|
143 }
144
145 sub get_request {
146 my ( $client, $path, $param ) = @_;
147
148 server->refresh;
149
150 CouchDB::audit( 'request', { path => $path, param => $param, peerhost => $client->peerhost } );
151
152 $title = $path;
153
154 if ( my $found = static( $client,$path ) ) {
155 warn "static $found" if $debug;
156 } elsif ( $path eq '/' ) {
157
158 my @rows;
159
160 my $debug_proc = '';
161
162 warn "XXX pids = ", dump( $daemons::pids );
163
164 foreach my $name ( sort keys %$daemons::pids ) {
165 my $pid = $daemons::pids->{$name}; # || next;
166
167 my $html;
168
169 my $proc = "/proc/$pid/status";
170
171 if ( -e $proc ) {
172 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
173 if ( $debug ) {
174 $html .= qq| <a name=$pid href=#proc-$pid>?</a>| if $name->can('start');
175
176 $debug_proc
177 .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
178 . read_file($proc)
179 . qq|</pre>|
180 ;
181 }
182
183 my $class = $name;
184 $class =~ s{\.\d+$}{};
185
186 if ( $class->can('fork_if_active') ) {
187 $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $class->fork_if_active;
188 }
189
190 if ( $class->can('actions') ) {
191 $html .= qq| <a href=/action/$name/$_>$_</a>| foreach $class->actions;
192 }
193 } else {
194 if ( $pid =~ m{^\d+$} ) {
195 $html .= qq|$pid exited |
196 } else {
197 $html .= qq|$pid |;
198 }
199 $html .= qq|<a href=/start_stop/$name>restart</a>| if $pid || $name->can('start');
200 if ( $name->can('fork_actions') ) {
201 $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $name->fork_actions;
202 }
203 }
204
205 die "no html generated" unless $html;
206
207 push @rows, ( $name => $html );
208 }
209
210 my $below_table = '';
211
212 warn 'static_pids: ', dump( $static_pids ) if $debug;
213 foreach my $pid ( keys %$static_pids ) {
214 my $path = $static_pids->{$pid};
215 if ( -d "/proc/$pid" ) {
216 push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
217 } elsif ( $param->{clean_completed_downloads} ) {
218 delete $static_pids->{$pid}
219 } else {
220 push @rows, ( $path => "$pid competed" );
221 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
222 }
223 }
224
225 my $kvm = kvm::next_nr;
226 $kvm = qq|<div><a href=/start_stop/kvm?nr=$kvm>create new kvm $kvm</a></div>|;
227
228 print $client ok
229 , html::table( 2, @rows )
230 , $below_table
231 , $kvm
232 , html::tabs( log::mac_changes )
233 , $debug_proc
234 ;
235
236 } elsif ( $path =~ m{^/server} ) {
237 foreach my $name ( keys %$param ) {
238 eval '$server::' . $name . '= $param->{$name}';
239 }
240 my @table = (
241 'debug' => qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
242 , 'new_clients' => qq|<input type=text name=new_clients size=3 value="$server::new_clients">|
243 );
244
245 foreach my $editable ( 'ip', 'bcast', 'netmask', 'ip_from', 'ip_to', 'domain' ) {
246 my $v = eval '$server::' . $editable;
247 push @table, ( $editable, qq|<input type=text name=$editable value="$v">| );
248 }
249
250 foreach my $readonly ( 'base_dir', 'conf' ) {
251 my $v = eval '$server::' . $readonly;
252 push @table, ( $readonly, html::tt $v );
253 }
254
255 print $client ok
256 , qq|<form method=get>|
257 , html::table( 2, @table )
258 , qq|
259 <input type=submit name=action value=change>
260 </form>
261 |
262 ;
263
264 } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
265 my $ip = $1;
266 $title = $ip if $ip;
267
268 if ( $param->{action} eq 'remove' ) {
269 client::remove( $param->{change_ip} );
270 print $client redirect("$url/client");
271 return;
272 } elsif ( $param->{action} eq 'change' ) {
273 if ( my $new_ip = client::change_ip( $ip, $param->{change_ip} ) ) {
274 print $client redirect("$url/client#$new_ip");
275 return;
276 }
277 }
278
279 if ( ! $ip ) {
280 my $peer_ip = $client->peerhost;
281
282 my $netmask = ip::to_int $server::netmask;
283 my $network = ip::to_int($server::ip) & $netmask;
284 my $from_int = $network | $server::ip_from;
285 my $to_int = $network | $server::ip_to;
286 my $ip_int = ip::to_int $peer_ip;
287
288 # show edit for clients in our dhcp range
289 if ( $ip_int >= $from_int && $ip_int <= $to_int ) {
290 $ip = $peer_ip;
291 }
292 }
293
294 if ( $ip && $ip ne $server::ip ) {
295
296 my @editable = ( qw/hostname config homepage/ );
297
298 client::conf( $ip, $_ => $param->{$_} ) foreach @editable;
299
300 my $conf = client::all_conf( $ip );
301 my $config = delete $conf->{config};
302
303 my $nmap = qq|<a href=/nmap?scan=$ip>nmap</a>|;
304 my @table = (
305 'ping' => ping::host($ip)
306 ? qq|<span style="color:green">up</span> $nmap|
307 : qq|<span style="color: red">down</span> <a href=/wol/$ip>wol</a> $nmap|
308 ,
309 'ip' => qq|<input type=text name=change_ip value="$ip" onChange="document.getElementById('old_ip').style.display = '';"><span id=old_ip style="display: none; color: #888;">old: $ip<span>|,
310 'mac' => format::mac( delete $conf->{mac}, 'html' ),
311 'hostname' => qq|<input type=text name=hostname value="| . delete($conf->{hostname}) . qq|">|,
312 'config' => html::select( 'config', $config, config::available ),
313 html::conf( $ip, $conf, 'edit', @editable )
314 );
315
316 print $client ok
317 , qq|<form method=get>|
318 , html::table( 2, @table ),
319 , qq|
320 <input type=submit name=action value=change>
321 <input type=submit name=action value=remove style="color: red">
322 </form>|
323 ;
324
325 if ( $config ) {
326 if ( my $for_ip = config::for_ip( $ip ) ) {
327 print $client qq|<h2>config::for_ip</h2>| . html::pre( $for_ip );
328 }
329 }
330
331 if ( $conf->{amt} ) {
332 print $client qq|<h2>amt network</h2>|, html::pre_dump( amt::network( $ip ) );
333 print $client qq|<h2>amt log</h2>|, html::pre_dump( amt::log( $ip ) );
334 }
335
336 } else {
337
338 my @ping;
339 if ( my $host = $param->{ping_target} ) {
340 @ping = ( $host );
341 } elsif ( $param->{ping} ) {
342 @ping = client::all_ips;
343 }
344
345 my $ping = ping::fping( @ping ) if @ping;
346 my $arp = client::arp_mac_dev;
347
348 print $client ok
349 , qq|<h2>Clients on $server::ip</h2>|
350 , html::table( -5,
351 'ip', 'mac', 'dev', 'hostname', 'conf',
352 map {
353 my $ip = $_;
354 my $conf = client::all_conf( $ip );
355 my $mac = delete $conf->{mac} || '';
356 my $style;
357 $style
358 = 'style="color:'
359 . ( $ping->{$ip} ? 'green' : 'red' )
360 . '"'
361 if $ping;
362 $style ||= '';
363 my $ip_text = qq|<tt>$ip</tt>|;
364 $ip_text = qq|<tt><b>$ip</b></tt>| if ip::in_dhcp_range($ip);
365 (
366 qq|<a $style name=$ip target=$ip href=/client/$ip>$ip_text</a>|
367 , format::mac( $mac => 'html' )
368 , $arp->{$mac}
369 , delete $conf->{hostname}
370 , html::conf( $ip, $conf, 'inline' )
371 )
372 } client::all_ips
373 )
374 ;
375 print $client qq|
376 <form method=get>
377 <input type=text name=ping_target size=15>
378 <input type=submit name=ping value=ping>
379 </form>
380 |;
381 }
382
383
384 } elsif ( $path =~ m{^/brctl} ) {
385
386 system 'brctl addif virtual ' . $param->{addif} if $param->{addif};
387 system 'brctl delif virtual ' . $param->{delif} if $param->{delif};
388
389 my $in_virtual;
390
391 my @table =
392 map {
393 my @c = split(/\t+/,$_,4);
394 if ( $#c == 1 ) {
395 $in_virtual->{ $c[1] }++;
396 @c = ( '', '', '', $c[1] );
397 } else {
398 $in_virtual->{ $c[3] }++;
399 }
400 if ( $c[3] =~ m{\d$} ) {
401 $c[3] = qq|<input type=submit name=delif value=$c[3] style="color:red" title="remove $c[3] from bridge">|;
402 }
403 @c
404 } split(/\n/, `brctl show`)
405 ;
406
407 my @add_ifs = grep { ! $in_virtual->{$_} && $_ ne 'virtual' } ip::devices_up;
408
409 push @table, ( '', '', '', html::select( 'addif', @add_ifs ) . qq|<input type=submit value=add></form>| );
410
411 print $client ok
412 , qq|<form>|
413 , html::table( -4, @table )
414 , qq|</form>|
415 ;
416
417
418 } elsif ( $path =~ m{^/ip/?(\w+)?} ) {
419 print $client ok
420 , join("\n", map { qq|<a href=/ip/$_>$_</a>| } ( qw/link addr route neigh ntable tunnel maddr mroute xfrm/ ))
421 , ip::html( $1 )
422 ;
423 } elsif ( $path =~ m{^/nmap} ) {
424 if ( my $scan = $param->{scan} ) {
425 nmap::scan( $scan );
426 print $client redirect("$url/client#$scan");
427 } else {
428 print $client ok, qq|
429 <form method=get>
430 <input type=text name=scan>
431 <input type=submit value=scan>
432 </form>
433 |;
434 }
435 } elsif ( $path =~ m{^/wol/(\S+)} ) {
436 print $client redirect( "$url/client/$1" ), wol::power_on($1);
437 } elsif ( $path =~ m!^/amt/(\w+)/$RE{net}{IPv4}{-keep}! ) {
438 my ( $run, $ip ) = ( $1, $2 );
439 print $client redirect( "$url/client/$ip" ), amt::RemoteControl( $ip, $run );
440 } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
441 eval 'our $' . $1 . ' = ' . $2;
442 warn $@ if $@;
443 print $client redirect($url), qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
444 server::debug( $debug ) if $1 eq 'debug';
445 } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
446 print $client redirect, daemons::start_stop($1,$param);
447 } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
448 my ( $package, $method ) = ( $1, $2 );
449 $ENV{nr} = $1 if $package =~ s{\.(\d+)$}{};
450 $package->$method();
451 print $client redirect;
452 } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
453 print $client redirect;
454 kill 1, $1 || kill 9, $2 && warn "killed $1";
455 } else {
456 print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
457 warn "404 $path";
458 }
459
460 }
461
462 sub start {
463
464 warn 'network ', network::setup();
465
466 daemons::start_stop 'browser', { url => $url };
467 daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd syslogd/ );
468 # daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
469
470 my $server = IO::Socket::INET->new(
471 Proto => 'tcp',
472 # LocalAddr => $server::ip,
473 LocalPort => $httpd::port,
474 Listen => SOMAXCONN,
475 Reuse => 1
476 ) || die "can't start server on $url: $!";
477
478 print "url $url\n";
479
480 syslogd::install_local;
481 client::rebuild_mac_links;
482
483 while (1) {
484 my $client = $server->accept() || next; # ALARM trickle us
485 my $request = <$client>;
486
487 my $headers;
488
489 while ( my $header = <$client> ) {
490 chomp $header;
491 last if $header =~ m{^\s*$};
492 my ( $n, $v ) = split(/:\s*/, $header);
493 $headers->{ lc $n } = $v;
494 }
495
496 if ( my $host = $headers->{host} ) {
497 $url = 'http://' . $host;
498 $url .= ":$port" unless $url =~ m{:\d+$};
499 }
500
501 warn "## $url ## $request", dump( $headers ) if $debug;
502
503 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
504 my $path = $1;
505 $path =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/ge;
506 my $param;
507 if ( $path =~ s{\?(.+)}{} ) {
508 foreach my $p ( split(/[&;]/, $1) ) {
509 my ($n,$v) = split(/=/, $p, 2);
510 $param->{$n} = $v;
511 }
512 warn "param: ",dump( $param ) if $debug;
513 }
514 get_request $client, $path, $param;
515 } else {
516 print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
517 warn "500 $request";
518 }
519
520 print $client menu() . html_end() if $client->connected;
521
522 }
523
524 die "server died";
525 }
526
527 warn "loaded";
528
529 1;

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