/[pxelator]/lib/PXElator/httpd.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /lib/PXElator/httpd.pm

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Revision 229 - (show annotations)
Sun Aug 16 21:35:23 2009 UTC (14 years, 7 months ago) by dpavlin
File size: 8613 byte(s)
use kernel bridge (named virtual) instead of vde

it's much faster, and we know all commands to use it :-)

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

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