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

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Revision 190 - (show annotations)
Mon Aug 10 00:07:38 2009 UTC (14 years, 7 months ago) by dpavlin
File size: 7485 byte(s)
added arp table display
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=/client>client</a>
28 </div>
29
30 }}
31
32 our $port = 7777;
33
34 use server;
35 our $debug = server::debug;
36 our $url = "http://$server::ip:$port";
37
38 use html;
39 our $static_pids;
40 use progress_bar;
41 use config;
42 use client;
43 use log;
44 use x11;
45 use amt;
46 use boolean;
47 use daemons;
48
49 use kvm;
50 use browser;
51 use network;
52
53
54 sub static {
55 my ($client,$path) = @_;
56
57 my $full = "$server::base_dir/tftp/$path";
58
59 return if ! -f $full;
60
61 if ( my $pid = fork ) {
62 # parent
63 close($client);
64 print "http static child $pid\n";
65 $static_pids->{$pid} = $path;
66 return 1;
67 }
68
69 my $type = 'application/octet-stream';
70 $type = 'text/html' if $path =~ m{\.htm};
71 $type = 'application/javascript' if $path =~ m{\.js};
72 $type = 'text/plain' if $path =~ m{\.txt};
73
74 my $size = -s $full || return;
75
76 print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
77
78 open(my $fh, $full);
79
80 my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
81 my $buff;
82 my $pos = 0;
83
84 warn "static $path $type $size block: $block\n";
85
86 progress_bar::start;
87
88 while( my $len = read $fh, $buff, $block ) {
89 print $client $buff;
90 $client->flush;
91 $pos += $len;
92 progress_bar::tick( $path, $pos, $size );
93 }
94 close($fh);
95 close($client);
96
97 print STDERR "\n";
98
99 warn "exit static child";
100
101 exit(0);
102 }
103
104 my $ok = qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . menu();
105 my $redirect = qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $url\r\n\r\n|;
106
107 sub get_request {
108 my ( $client, $path, $param ) = @_;
109
110 server->refresh;
111
112 warn "get_request $path ", $param ? dump( $param ) : '', "\n";
113
114 if ( my $found = static( $client,$path ) ) {
115 warn "static $found" if $debug;
116 } elsif ( $path eq '/' ) {
117
118 my @rows = (
119 'debug', qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
120 );
121
122 my $debug_proc = '';
123
124 foreach my $name ( sort keys %$daemons::pids ) {
125 my $pid = $daemons::pids->{$name} || next;
126
127 my $html;
128
129 my $proc = "/proc/$pid/status";
130
131 if ( -e $proc ) {
132 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
133 if ( $debug ) {
134 $html .= qq| <a name=$pid href=#proc-$pid>?</a>|;
135
136 $debug_proc
137 .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
138 . read_file($proc)
139 . qq|</pre>|
140 ;
141 }
142
143 if ( $name->can('start_fork') ) {
144 $html .= qq| <a href=/start_stop/kvm/$_>$_</a>| foreach $name->start_fork;
145 }
146
147 if ( $name->can('actions') ) {
148 $html .= qq| <a href=/action/kvm/$_>$_</a>| foreach $name->actions;
149 }
150 } else {
151 $html .= qq|<a href=/start_stop/$name>restart</a> $pid exited|;
152 }
153
154 push @rows, ( $name => $html );
155 }
156
157 my $below_table = '';
158
159 warn 'static_pids: ', dump( $static_pids ) if $debug;
160 foreach my $pid ( keys %$static_pids ) {
161 my $path = $static_pids->{$pid};
162 if ( -d "/proc/$pid" ) {
163 push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
164 } elsif ( $param->{clean_completed_downloads} ) {
165 delete $static_pids->{$pid}
166 } else {
167 push @rows, ( $path => "$pid competed" );
168 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
169 }
170 }
171
172 print $client $ok
173 , html::table( 2, @rows )
174 , $below_table
175 , html::tabs( log::mac_changes )
176 , $debug_proc
177 ;
178
179 } elsif ( $path =~ m{^/server} ) {
180 print $client $ok
181 , html::table( 2, map { ( $_, html::tt eval '$server::'.$_ ) } ( 'ip', 'netmask', 'ip_from', 'ip_to', 'domain_name', 'base_dir', 'conf' ) )
182 ;
183 } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
184 my $ip = $1 || $client->peerhost;
185 if ( $ip ne $server::ip ) {
186 my $hostname = client::conf( $ip, 'hostname' => $param->{hostname} );
187
188 my @table = (
189 'ip' => $ip,
190 'hostname' => qq|<input type=text name=hostname value=$hostname>|,
191 );
192
193 my $deploy;
194
195 if ( my $mac = client::mac( $ip ) ) {
196 $deploy = client::conf( $ip, 'deploy' => $param->{deploy} );
197 push @table, (
198 'mac' => $mac,
199 'deploy' => html::select( 'deploy', $deploy, config::available )
200 );
201 $deploy = qq|<h2>PXElinux</h2>| . html::pre( config::for_ip( $ip ) );
202 }
203
204 print $client $ok
205 , qq|<form method=get>|
206 , html::table( 2, @table ),
207 , qq|<input type=submit value=change></form>|
208 , $deploy
209 ;
210
211 if ( my $amt = client::conf( $ip, 'amt' ) ) {
212 print $client qq|<h2>AMT</h2>|, amt::info( $amt );
213 }
214 } else {
215
216 my $arp = {
217 map {
218 my @c = split(/\s+/,$_);
219 if ( $#c == 5 ) {
220 ( uc $c[3] => [ $c[0] , $c[5] ] )
221 } else {
222 }
223 } read_file('/proc/net/arp')
224 };
225
226 warn "# arp ",dump( $arp );
227
228 print $client $ok
229 , qq|<h2>Clients on $server::ip</h2>|
230 , html::table( -5,
231 'ip', 'hostname', 'mac', 'deploy', 'arp',
232 map {
233 my $ip = $_;
234 $ip =~ s{^.+/ip/}{};
235 my $arp = $arp->{ client::mac $ip, 'clean' };
236 $arp = $arp ? $arp->[1] : '';
237 $arp =~ s{$ip}{};
238 (
239 qq|<a href=/client/$ip>$ip</a>|
240 , client::conf( $ip, 'hostname' )
241 , client::mac( $ip )
242 , html::tt( client::conf( $ip, 'deploy' ) )
243 , $arp
244 );
245 }
246 glob("$server::conf/ip/*")
247 )
248 , qq|<h2>ARP</h2>|
249 , html::pre_dump( $arp )
250 ;
251 }
252 } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
253 eval 'our $' . $1 . ' = ' . $2;
254 warn $@ if $@;
255 print $client $redirect, qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
256 server::debug( $debug ) if $1 eq 'debug';
257 } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
258 print $client $redirect, daemons::start_stop($1);
259 } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
260 $1->$2();
261 print $client $redirect;
262 } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
263 print $client $redirect;
264 kill 1, $1 || kill 9, $2 && warn "killed $1";
265 } else {
266 print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
267 warn "404 $path";
268 }
269
270 }
271
272 sub start {
273
274 warn 'tap ', network::tap();
275
276 daemons::start_stop 'browser', $url;
277 daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd/ );
278 daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
279
280 my $server = IO::Socket::INET->new(
281 Proto => 'tcp',
282 LocalAddr => $server::ip,
283 LocalPort => $httpd::port,
284 Listen => SOMAXCONN,
285 Reuse => 1
286 ) || die "can't start server on $url: $!";
287
288 print "url $url\n";
289
290 while (1) {
291 my $client = $server->accept() || next; # ALARM trickle us
292 my $request = <$client>;
293
294 warn "request $request\n" if $debug;
295
296 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
297 my $path = $1;
298 my $param;
299 if ( $path =~ s{\?(.+)}{} ) {
300 foreach my $p ( split(/[&;]/, $1) ) {
301 my ($n,$v) = split(/=/, $p, 2);
302 $param->{$n} = $v;
303 }
304 warn "param: ",dump( $param ) if $debug;
305 }
306 get_request $client, $path, $param;
307 } else {
308 print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
309 warn "500 $request";
310 }
311
312 print $client menu() if $client->connected;
313
314 }
315
316 die "server died";
317 }
318
319 warn "loaded";
320
321 1;

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