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 $static_pids;
  40 use progress_bar;
  41 use config;
  42 use client;
  43 use log;
  44 use x11;
  45 use amt;
  46 use boolean;
  47 use daemons;
  48
  49 use kvm;
  50 use browser;
  51 use network;
  52
  53
  54 sub static {
  55         my ($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 sub ok {
 105         qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . menu()
 106 }
 107
 108 sub redirect {
 109         my $to = shift;
 110         $to ||= $url;
 111         qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $to\r\n\r\n|
 112 }
 113
 114 sub get_request {
 115         my ( $client, $path, $param ) = @_;
 116
 117         server->refresh;
 118
 119         warn "get_request $path ", $param ? dump( $param ) : '', "\n";
 120
 121         if ( my $found = static( $client,$path ) ) {
 122                 warn "static $found" if $debug;
 123         } elsif ( $path eq '/' ) {
 124
 125                 my @rows = (
 126                         'debug',        qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
 127                 );
 128
 129                 my $debug_proc = '';
 130
 131                 foreach my $name ( sort keys %$daemons::pids ) {
 132                         my $pid = $daemons::pids->{$name} || next;
 133
 134                         my $html;
 135
 136                         my $proc = "/proc/$pid/status";
 137
 138                         if ( -e $proc ) {
 139                                 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
 140                                 if ( $debug ) {
 141                                         $html .= qq| <a name=$pid href=#proc-$pid>?</a>|;
 142
 143                                         $debug_proc
 144                                                 .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
 145                                                 .  read_file($proc)
 146                                                 .  qq|</pre>|
 147                                                 ;
 148                                 }
 149
 150                                 if ( $name->can('start_fork') ) {
 151                                         $html .= qq| <a href=/start_stop/kvm/$_>$_</a>| foreach $name->start_fork;
 152                                 }
 153
 154                                 if ( $name->can('actions') ) {
 155                                         $html .= qq| <a href=/action/kvm/$_>$_</a>| foreach $name->actions;
 156                                 }
 157                         } else {
 158                                 $html .= qq|<a href=/start_stop/$name>restart</a> $pid exited|;
 159                         }
 160
 161                         push @rows, ( $name => $html );
 162                 }
 163
 164                 my $below_table = '';
 165
 166                 warn 'static_pids: ', dump( $static_pids ) if $debug;
 167                 foreach my $pid ( keys %$static_pids ) {
 168                         my $path = $static_pids->{$pid};
 169                         if ( -d "/proc/$pid" ) {
 170                                 push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
 171                         } elsif ( $param->{clean_completed_downloads} ) {
 172                                 delete $static_pids->{$pid}
 173                         } else {
 174                                 push @rows, ( $path => "$pid competed" );
 175                                 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
 176                         }
 177                 }
 178
 179                 print $client ok
 180                         , html::table( 2, @rows )
 181                         , $below_table
 182                         , html::tabs( log::mac_changes )
 183                         , $debug_proc
 184                         ;
 185
 186         } elsif ( $path =~ m{^/server} ) {
 187                 print $client ok
 188                         , html::table( 2, map { ( $_, html::tt eval '$server::'.$_ ) } ( 'ip', 'netmask', 'ip_from', 'ip_to', 'domain_name', 'base_dir', 'conf' ) )
 189                         ;
 190         } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
 191                 my $ip = $1 || $client->peerhost;
 192
 193                 if ( my $new_ip = $param->{change_ip} ) {
 194                         client::change_ip( $ip, $new_ip );
 195                         $ip = $new_ip;
 196                 }
 197
 198                 if ( $ip ne $server::ip ) {
 199                         my $hostname = client::conf( $ip, 'hostname' => $param->{hostname} );
 200
 201                         my @table = (
 202                                 'ip' => qq|<input type=text name=change_ip value="$ip" onChange="document.getElementById('old_ip').style.display = '';"><span id=old_ip style="display: none; color: #888;">old: $ip<span>|,
 203                                 'hostname' => qq|<input type=text name=hostname value="$hostname">|,
 204                         );
 205
 206                         my $deploy;
 207
 208                         if ( my $mac = client::mac( $ip ) ) {
 209                                 $deploy = client::conf( $ip, 'deploy' => $param->{deploy} );
 210                                 push @table, (
 211                                         'mac' => $mac,
 212                                         'deploy' => html::select( 'deploy', $deploy, config::available )
 213                                 );
 214                                 $deploy = qq|<h2>PXElinux</h2>| . html::pre( config::for_ip( $ip ) );
 215                         }
 216
 217                         print $client ok
 218                                 , qq|<form method=get>|
 219                                 , html::table( 2, @table ),
 220                                 , qq|<input type=submit value=change></form>|
 221                                 , $deploy
 222                                 ;
 223
 224                         if ( my $amt = client::conf( $ip, 'amt' ) ) {
 225                                 print $client qq|<h2>AMT</h2>|, amt::info( $amt );
 226                         }
 227                 } else {
 228
 229                         my $arp = {
 230                                 map {
 231                                         my @c = split(/\s+/,$_);
 232                                         if ( $#c == 5 ) {
 233                                                 ( uc $c[3] => [ $c[0] , $c[5] ] )
 234                                         } else {
 235                                         }
 236                                 } read_file('/proc/net/arp')
 237                         };
 238
 239                         warn "# arp ",dump( $arp );
 240
 241                         print $client ok
 242                                 , qq|<h2>Clients on $server::ip</h2>|
 243                                 , html::table( -5,
 244                                         'ip', 'hostname', 'mac', 'deploy', 'arp',
 245                                         map {
 246                                                 my $ip = $_;
 247                                                 $ip =~ s{^.+/ip/}{};
 248                                                 my $arp = $arp->{ client::mac $ip, 'clean' };
 249                                                 $arp = $arp ? $arp->[1] : '';
 250                                                 $arp =~ s{$ip}{};
 251                                                 (
 252                                                         qq|<a href=/client/$ip>$ip</a>|
 253                                                         , client::conf( $ip, 'hostname' )
 254                                                         , client::mac( $ip )
 255                                                         , html::tt( client::conf( $ip, 'deploy' ) )
 256                                                         , $arp
 257                                                 );
 258                                         }
 259                                         glob("$server::conf/ip/*")
 260                                 )
 261                                 , qq|<h2>ARP</h2>|
 262                                 , html::table( -3, 'mac', 'dev', 'ip',
 263                                         map {
 264                                                 my $c = $arp->{$_};
 265                                                 ( html::tt( $_ ), $c->[1], $c->[0] )
 266                                         } sort keys %$arp
 267                                 )
 268                                 ;
 269                 }
 270         } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
 271                 eval 'our $' . $1 . ' = ' . $2;
 272                 warn $@ if $@;
 273                 print $client redirect($url), qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
 274                 server::debug( $debug ) if $1 eq 'debug';
 275         } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
 276                 print $client redirect, daemons::start_stop($1);
 277         } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
 278                 $1->$2();
 279                 print $client redirect;
 280         } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
 281                 print $client redirect;
 282                 kill 1, $1 || kill 9, $2 && warn "killed $1";
 283         } else {
 284                 print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
 285                 warn "404 $path";
 286         }
 287
 288 }
 289
 290 sub start {
 291
 292         warn 'tap ', network::tap();
 293
 294         daemons::start_stop 'browser', $url;
 295         daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd/ );
 296         daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
 297
 298         my $server = IO::Socket::INET->new(
 299                         Proto     => 'tcp',
 300                         LocalAddr => $server::ip,
 301                         LocalPort => $httpd::port,
 302                         Listen    => SOMAXCONN,
 303                         Reuse     => 1
 304         ) || die "can't start server on $url: $!";
 305
 306         print "url $url\n";
 307
 308         while (1) {
 309                 my $client = $server->accept() || next; # ALARM trickle us
 310                 my $request = <$client>;
 311
 312                 warn "request $request\n" if $debug;
 313
 314                 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
 315                         my $path = $1;
 316                         my $param;
 317                         if ( $path =~ s{\?(.+)}{} ) {
 318                                 foreach my $p ( split(/[&;]/, $1) ) {
 319                                         my ($n,$v) = split(/=/, $p, 2);
 320                                         $param->{$n} = $v;
 321                                 }
 322                                 warn "param: ",dump( $param ) if $debug;
 323                         }
 324                         get_request $client, $path, $param;
 325                 } else {
 326                         print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
 327                         warn "500 $request";
 328                 }
 329
 330                 print $client menu() if $client->connected;
 331
 332         }
 333
 334         die "server died";
 335 }
 336
 337 warn "loaded";
 338
 339 1;