/[pxelator]/lib/PXElator/httpd.pm
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Contents of /lib/PXElator/httpd.pm

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Revision 243 - (show annotations)
Mon Aug 17 13:25:48 2009 UTC (14 years, 7 months ago) by dpavlin
File size: 8825 byte(s)
better process messages and start/stop
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 sub menu {qq{
23
24 <div style="font-size: 80%; color: #888">
25 <a href=/>home</a>
26 <a href=/server>server</a>
27 <a href=/brctl>brctl</a>
28 <a href=/ip>ip</a>
29 <a href=/client>client</a>
30 </div>
31
32 }}
33
34 our $port = 7777;
35
36 use server;
37 our $debug = server::debug;
38 our $url = "http://$server::ip:$port";
39
40 use html;
41 our $static_pids;
42 use progress_bar;
43 use config;
44 use client;
45 use log;
46 use x11;
47 use amt;
48 use boolean;
49 use daemons;
50
51 use kvm;
52 use browser;
53 use network;
54 use ip;
55 use wireshark;
56 use syslogd;
57
58 use CouchDB;
59
60 sub static {
61 my ($client,$path) = @_;
62
63 my $full = "$server::base_dir/tftp/$path";
64
65 return if ! -f $full;
66
67 if ( my $pid = fork ) {
68 # parent
69 close($client);
70 $static_pids->{$pid} = $path;
71 return 1;
72 }
73
74 my $type = 'application/octet-stream';
75 $type = 'text/html' if $path =~ m{\.htm};
76 $type = 'application/javascript' if $path =~ m{\.js};
77 $type = 'text/plain' if $path =~ m{\.txt};
78
79 my $size = -s $full || return;
80
81 print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
82
83 open(my $fh, $full);
84
85 my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
86 my $buff;
87 my $pos = 0;
88
89 CouchDB::audit( 'static', { pid => $$, path => $path, type => $type, size => $size, block => $block, peerhost => $client->peerhost });
90
91 progress_bar::start;
92
93 while( my $len = read $fh, $buff, $block ) {
94 print $client $buff;
95 $client->flush;
96 $pos += $len;
97 progress_bar::tick( $path, $pos, $size );
98 }
99 close($fh);
100 close($client);
101
102 print STDERR "\n";
103
104 exit(0);
105 }
106
107 sub ok {
108 qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . menu()
109 }
110
111 sub redirect {
112 my $to = shift;
113 $to ||= $url;
114 qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $to\r\n\r\n|
115 }
116
117 sub get_request {
118 my ( $client, $path, $param ) = @_;
119
120 server->refresh;
121
122 CouchDB::audit( 'request', { path => $path, param => $param, peerhost => $client->peerhost } );
123
124 if ( my $found = static( $client,$path ) ) {
125 warn "static $found" if $debug;
126 } elsif ( $path eq '/' ) {
127
128 my @rows = (
129 'debug', qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
130 );
131
132 my $debug_proc = '';
133
134 warn "XXX pids = ", dump( $daemons::pids );
135
136 foreach my $name ( sort keys %$daemons::pids ) {
137 my $pid = $daemons::pids->{$name}; # || next;
138
139 my $html;
140
141 my $proc = "/proc/$pid/status";
142
143 if ( -e $proc ) {
144 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
145 if ( $debug ) {
146 $html .= qq| <a name=$pid href=#proc-$pid>?</a>| if $name->can('start');
147
148 $debug_proc
149 .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
150 . read_file($proc)
151 . qq|</pre>|
152 ;
153 }
154
155 if ( $name->can('fork_if_active') ) {
156 $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $name->fork_if_active;
157 }
158
159 if ( $name->can('actions') ) {
160 $html .= qq| <a href=/action/$name/$_>$_</a>| foreach $name->actions;
161 }
162 } else {
163 if ( $pid =~ m{^\d+$} ) {
164 $html .= qq|$pid exited |
165 } else {
166 $html .= qq|$pid |;
167 }
168 $html .= qq|<a href=/start_stop/$name>restart</a>| if $pid || $name->can('start');
169 if ( $name->can('fork_actions') ) {
170 $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $name->fork_actions;
171 }
172 }
173
174 die "no html generated" unless $html;
175
176 push @rows, ( $name => $html );
177 }
178
179 my $below_table = '';
180
181 warn 'static_pids: ', dump( $static_pids ) if $debug;
182 foreach my $pid ( keys %$static_pids ) {
183 my $path = $static_pids->{$pid};
184 if ( -d "/proc/$pid" ) {
185 push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
186 } elsif ( $param->{clean_completed_downloads} ) {
187 delete $static_pids->{$pid}
188 } else {
189 push @rows, ( $path => "$pid competed" );
190 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
191 }
192 }
193
194 print $client ok
195 , html::table( 2, @rows )
196 , $below_table
197 , html::tabs( log::mac_changes )
198 , $debug_proc
199 ;
200
201 } elsif ( $path =~ m{^/server} ) {
202 print $client ok
203 , html::table( 2, map { ( $_, html::tt eval '$server::'.$_ ) } ( 'ip', 'netmask', 'ip_from', 'ip_to', 'domain_name', 'base_dir', 'conf' ) )
204 ;
205 } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
206 my $ip = $1 || $client->peerhost;
207
208 if ( my $new_ip = $param->{change_ip} ) {
209 client::change_ip( $ip, $new_ip );
210 $ip = $new_ip;
211 }
212
213 if ( $ip ne $server::ip ) {
214 my $hostname = client::conf( $ip, 'hostname' => $param->{hostname} );
215
216 my @table = (
217 'ip' => qq|<input type=text name=change_ip value="$ip" onChange="document.getElementById('old_ip').style.display = '';"><span id=old_ip style="display: none; color: #888;">old: $ip<span>|,
218 'hostname' => qq|<input type=text name=hostname value="$hostname">|,
219 );
220
221 my $deploy;
222
223 if ( my $mac = client::mac_from_ip( $ip ) ) {
224 $deploy = client::conf( $ip, 'deploy' => $param->{deploy} );
225 push @table, (
226 'mac' => format::mac( $mac => 'html' ),
227 'deploy' => html::select( 'deploy', $deploy, config::available )
228 );
229 $deploy = qq|<h2>PXElinux</h2>| . html::pre( config::for_ip( $ip ) );
230 }
231
232 print $client ok
233 , qq|<form method=get>|
234 , html::table( 2, @table ),
235 , qq|<input type=submit value=change></form>|
236 , $deploy
237 ;
238
239 if ( my $amt = client::conf( $ip, 'amt' ) ) {
240 print $client qq|<h2>AMT</h2>|, amt::info( $amt );
241 }
242 } else {
243
244 my $arp = {
245 map {
246 my @c = split(/\s+/,$_);
247 if ( $#c == 5 ) {
248 ( uc $c[3] => [ $c[0] , $c[5] ] )
249 } else {
250 }
251 } read_file('/proc/net/arp')
252 };
253
254 warn "# arp ",dump( $arp );
255
256 print $client ok
257 , qq|<h2>Clients on $server::ip</h2>|
258 , html::table( -5,
259 'ip', 'hostname', 'mac', 'deploy', 'arp',
260 map {
261 my $ip = $_;
262 $ip =~ s{^.+/ip/}{};
263 my $mac = client::mac_from_ip $ip;
264 my $arp = $arp->{ $mac };
265 $arp = $arp ? $arp->[1] : '';
266 $arp =~ s{$ip}{};
267 (
268 qq|<a href=/client/$ip>$ip</a>|
269 , client::conf( $ip, 'hostname' )
270 , format::mac( $mac => 'html' )
271 , html::tt( client::conf( $ip, 'deploy' ) )
272 , $arp
273 );
274 }
275 glob("$server::conf/ip/*")
276 )
277 , qq|<h2>ARP</h2>|
278 , html::table( -3, 'mac', 'dev', 'ip',
279 map {
280 my $c = $arp->{$_};
281 ( format::mac( $_ => 'html' ), $c->[1], $c->[0] )
282 } sort keys %$arp
283 )
284 ;
285 }
286 } elsif ( $path =~ m{^/brctl} ) {
287 print $client ok
288 ,html::pre( `brctl show` )
289 ;
290 } elsif ( $path =~ m{^/ip/?(\w+)?} ) {
291 print $client ok
292 , join("\n", map { qq|<a href=/ip/$_>$_</a>| } ( qw/link addr route neigh ntable tunnel maddr mroute xfrm/ ))
293 , ip::html( $1 )
294 ;
295 } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
296 eval 'our $' . $1 . ' = ' . $2;
297 warn $@ if $@;
298 print $client redirect($url), qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
299 server::debug( $debug ) if $1 eq 'debug';
300 } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
301 print $client redirect, daemons::start_stop($1);
302 } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
303 $1->$2();
304 print $client redirect;
305 } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
306 print $client redirect;
307 kill 1, $1 || kill 9, $2 && warn "killed $1";
308 } else {
309 print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
310 warn "404 $path";
311 }
312
313 }
314
315 sub start {
316
317 warn 'network ', network::setup();
318
319 daemons::start_stop 'browser', $url;
320 daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd syslogd/ );
321 daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
322
323 my $server = IO::Socket::INET->new(
324 Proto => 'tcp',
325 LocalAddr => $server::ip,
326 LocalPort => $httpd::port,
327 Listen => SOMAXCONN,
328 Reuse => 1
329 ) || die "can't start server on $url: $!";
330
331 print "url $url\n";
332
333 while (1) {
334 my $client = $server->accept() || next; # ALARM trickle us
335 my $request = <$client>;
336
337 warn "request $request\n" if $debug;
338
339 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
340 my $path = $1;
341 my $param;
342 if ( $path =~ s{\?(.+)}{} ) {
343 foreach my $p ( split(/[&;]/, $1) ) {
344 my ($n,$v) = split(/=/, $p, 2);
345 $param->{$n} = $v;
346 }
347 warn "param: ",dump( $param ) if $debug;
348 }
349 get_request $client, $path, $param;
350 } else {
351 print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
352 warn "500 $request";
353 }
354
355 print $client menu() if $client->connected;
356
357 }
358
359 die "server died";
360 }
361
362 warn "loaded";
363
364 1;

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