/[pxelator]/lib/PXElator/httpd.pm
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Revision 393 - (show annotations)
Tue Sep 8 16:54:35 2009 UTC (14 years, 7 months ago) by dpavlin
File size: 11461 byte(s)
first step towards configurable server (broken in it's current state)

- move configuration into tied variables using server::tie
- rename server::domain_name into server::domain

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

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