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