git.rot13.org Git - pxelator/blob - lib/PXElator/httpd.pm

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