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 our $title;
  23
  24 sub html_start {
  25 qq{
  26 <html>
  27 <head>
  28 <title>$title</title>
  29 </head>
  30 <body>
  31 }}
  32
  33 sub html_end {
  34 qq{
  35 </body>
  36 </html>
  37 }}
  38
  39 sub menu {
  40 qq{
  41 <div style="font-size: 80%; color: #888">
  42 <a href=/>home</a>
  43 <a href=/server>server</a>
  44 <a href=/brctl>brctl</a>
  45 <a href=/ip>ip</a>
  46 <a href=/nmap>nmap</a>
  47 <a href=/client>client</a>
  48 </div>
  49
  50 }}
  51
  52 our $port = 7777;
  53
  54 use server;
  55 our $debug = server::debug;
  56 our $url = "http://$server::ip:$port";
  57
  58 use html;
  59 our $static_pids;
  60 use progress_bar;
  61 use config;
  62 use client;
  63 use log;
  64 use x11;
  65 use amt;
  66 use boolean;
  67 use daemons;
  68
  69 use kvm;
  70 use browser;
  71 use network;
  72 use ip;
  73 use wireshark;
  74 use syslogd;
  75 use nmap;
  76 use ping;
  77 use wol;
  78
  79 use CouchDB;
  80
  81 sub static {
  82         my ($client,$path) = @_;
  83
  84         my $full = "$server::base_dir/tftp/$path";
  85
  86         return if ! -f $full;
  87
  88         return if $full =~ m{\.ico$};
  89
  90         if ( my $pid = fork ) {
  91                 # parent
  92                 close($client);
  93                 $static_pids->{$pid} = $path;
  94                 return 1;
  95         }
  96
  97         my $type = 'application/octet-stream';
  98         $type = 'text/html' if $path =~ m{\.htm};
  99         $type = 'application/javascript' if $path =~ m{\.js};
 100         $type = 'text/plain' if $path =~ m{\.txt};
 101
 102         my $size = -s $full || return;
 103
 104         print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
 105
 106         open(my $fh, $full);
 107
 108         my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
 109         my $buff;
 110         my $pos = 0;
 111
 112         CouchDB::audit( 'static', { pid => $$, path => $path, type => $type, size => $size, block => $block, peerhost => $client->peerhost });
 113
 114         progress_bar::start;
 115
 116         while( my $len = read $fh, $buff, $block ) {
 117                 print $client $buff;
 118                 $client->flush;
 119                 $pos += $len;
 120                 progress_bar::tick( $path, $pos, $size );
 121         }
 122         close($fh);
 123         close($client);
 124
 125         print STDERR "\n";
 126
 127         exit(0);
 128 }
 129
 130 sub ok {
 131         qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . html_start() . menu()
 132 }
 133
 134 sub redirect {
 135         my $to = shift;
 136         $to ||= $url;
 137         qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $to\r\n\r\n|
 138 }
 139
 140 sub get_request {
 141         my ( $client, $path, $param ) = @_;
 142
 143         server->refresh;
 144
 145         CouchDB::audit( 'request', { path => $path, param => $param, peerhost => $client->peerhost } );
 146
 147         $title = $path;
 148
 149         if ( my $found = static( $client,$path ) ) {
 150                 warn "static $found" if $debug;
 151         } elsif ( $path eq '/' ) {
 152
 153                 my @rows;
 154
 155                 my $debug_proc = '';
 156
 157 warn "XXX pids = ", dump( $daemons::pids );
 158
 159                 foreach my $name ( sort keys %$daemons::pids ) {
 160                         my $pid = $daemons::pids->{$name}; # || next;
 161
 162                         my $html;
 163
 164                         my $proc = "/proc/$pid/status";
 165
 166                         if ( -e $proc ) {
 167                                 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
 168                                 if ( $debug ) {
 169                                         $html .= qq| <a name=$pid href=#proc-$pid>?</a>| if $name->can('start');
 170
 171                                         $debug_proc
 172                                                 .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
 173                                                 .  read_file($proc)
 174                                                 .  qq|</pre>|
 175                                                 ;
 176                                 }
 177
 178                                 my $class = $name;
 179                                 $class =~ s{\.\d+$}{};
 180
 181                                 if ( $class->can('fork_if_active') ) {
 182                                         $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $class->fork_if_active;
 183                                 }
 184
 185                                 if ( $class->can('actions') ) {
 186                                         $html .= qq| <a href=/action/$name/$_>$_</a>| foreach $class->actions;
 187                                 }
 188                         } else {
 189                                 if ( $pid =~ m{^\d+$} ) {
 190                                         $html .= qq|$pid exited |
 191                                 } else {
 192                                         $html .= qq|$pid |;
 193                                 }
 194                                 $html .= qq|<a href=/start_stop/$name>restart</a>| if $pid || $name->can('start');
 195                                 if ( $name->can('fork_actions') ) {
 196                                         $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $name->fork_actions;
 197                                 }
 198                         }
 199
 200                         die "no html generated" unless $html;
 201
 202                         push @rows, ( $name => $html );
 203                 }
 204
 205                 my $below_table = '';
 206
 207                 warn 'static_pids: ', dump( $static_pids ) if $debug;
 208                 foreach my $pid ( keys %$static_pids ) {
 209                         my $path = $static_pids->{$pid};
 210                         if ( -d "/proc/$pid" ) {
 211                                 push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
 212                         } elsif ( $param->{clean_completed_downloads} ) {
 213                                 delete $static_pids->{$pid}
 214                         } else {
 215                                 push @rows, ( $path => "$pid competed" );
 216                                 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
 217                         }
 218                 }
 219
 220                 my $kvm = kvm::next_nr;
 221                 $kvm = qq|<div><a href=/start_stop/kvm?nr=$kvm>create new kvm $kvm</a></div>|;
 222
 223                 print $client ok
 224                         , html::table( 2, @rows )
 225                         , $below_table
 226                         , $kvm
 227                         , html::tabs( log::mac_changes )
 228                         , $debug_proc
 229                         ;
 230
 231         } elsif ( $path =~ m{^/server} ) {
 232                 foreach my $name ( keys %$param ) {
 233                         eval '$server::' . $name . '= $param->{$name}';
 234                 }
 235                 my @table = (
 236                           'debug' => qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
 237                         , 'new_clients' => qq|<input type=text name=new_clients size=3 value="$server::new_clients">|
 238                 );
 239
 240                 foreach my $editable ( 'ip', 'netmask', 'ip_from', 'ip_to', 'domain' ) {
 241                         my $v = eval '$server::' . $editable;
 242                         push @table, ( $editable, qq|<input type=text name=$editable value="$v">| );
 243                 }
 244
 245                 foreach my $readonly ( 'base_dir', 'conf' ) {
 246                         my $v = eval '$server::' . $readonly;
 247                         push @table, ( $readonly, html::tt $v );
 248                 }
 249
 250                 print $client ok
 251                         , qq|<form method=get>|
 252                         , html::table( 2, @table )
 253                         , qq|
 254                                 <input type=submit name=action value=change>
 255                                 </form>
 256                         |
 257                         ;
 258
 259         } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
 260                 my $ip = $1;
 261                 $title = $ip;
 262
 263                 if ( $param->{action} eq 'remove' ) {
 264                         client::remove( $param->{change_ip} );
 265                         print $client redirect("$url/client");
 266                         return;
 267                 } elsif ( $param->{action} eq 'change' ) {
 268                         if ( my $new_ip = client::change_ip( $ip, $param->{change_ip} ) ) {
 269                                 print $client redirect("$url/client#$new_ip");
 270                                 return;
 271                         }
 272                 }
 273
 274                 if ( ! $ip ) {
 275                         my $peer_ip = $client->peerhost;
 276
 277                         my $netmask  = ip::to_int $server::netmask;
 278                         my $network  = ip::to_int($server::ip) & $netmask;
 279                         my $from_int = $network | $server::ip_from;
 280                         my $to_int   = $network | $server::ip_to;
 281                         my $ip_int   = ip::to_int $peer_ip;
 282
 283                         # show edit for clients in our dhcp range
 284                         if ( $ip_int >= $from_int && $ip_int <= $to_int ) {
 285                                 $ip = $peer_ip;
 286                         }
 287                 }
 288
 289                 if ( $ip && $ip ne $server::ip ) {
 290
 291                         my @editable = ( qw/hostname config homepage/ );
 292
 293                         client::conf( $ip, $_ => $param->{$_} ) foreach @editable;
 294
 295                         my $conf = client::all_conf( $ip );
 296                         my $config = delete $conf->{config};
 297
 298                         my $nmap = qq|<a href=/nmap?scan=$ip>nmap</a>|;
 299                         my @table = (
 300                                 'ping' => ping::host($ip)
 301                                         ? qq|<span style="color:green">up</span> $nmap|
 302                                         : qq|<span style="color: red">down</span> <a href=/wol/$ip>wol</a> $nmap|
 303                                         ,
 304                                 'ip' => qq|<input type=text name=change_ip value="$ip" onChange="document.getElementById('old_ip').style.display = '';"><span id=old_ip style="display: none; color: #888;">old: $ip<span>|,
 305                                 'mac' => format::mac( delete $conf->{mac}, 'html' ),
 306                                 'hostname' => qq|<input type=text name=hostname value="| . delete($conf->{hostname}) . qq|">|,
 307                                 'config' => html::select( 'config', $config, config::available ),
 308                                 html::conf( $ip, $conf, 'edit', @editable )
 309                         );
 310
 311                         print $client ok
 312                                 , qq|<form method=get>|
 313                                 , html::table( 2, @table ),
 314                                 , qq|
 315                                         <input type=submit name=action value=change>
 316                                         <input type=submit name=action value=remove style="color: red">
 317                                         </form>|
 318                                 ;
 319
 320                         if ( $config ) {
 321                                 if ( my $for_ip = config::for_ip( $ip ) ) {
 322                                         print $client qq|<h2>config::for_ip</h2>| . html::pre( $for_ip );
 323                                 }
 324                         }
 325
 326                         if ( $conf->{amt} ) {
 327                                 print $client qq|<h2>amt network</h2>|, html::pre_dump( amt::network( $ip ) );
 328                                 print $client qq|<h2>amt log</h2>|, html::pre_dump( amt::log( $ip ) );
 329                         }
 330
 331                 } else {
 332
 333                         my @ping;
 334                         if ( my $host = $param->{ping_target} ) {
 335                                 @ping = ( $host );
 336                         } elsif ( $param->{ping} ) {
 337                                 @ping = client::all_ips;
 338                         }
 339
 340                         my $ping = ping::fping( @ping ) if @ping;
 341                         my $arp = client::arp_mac_dev;
 342
 343                         print $client ok
 344                                 , qq|<h2>Clients on $server::ip</h2>|
 345                                 , html::table( -5,
 346                                         'ip', 'mac', 'dev', 'hostname', 'conf',
 347                                         map {
 348                                                 my $ip = $_;
 349                                                 my $conf = client::all_conf( $ip );
 350                                                 my $mac = delete $conf->{mac} || '';
 351                                                 my $style;
 352                                                 $style
 353                                                         = 'style="color:'
 354                                                         . ( $ping->{$ip} ? 'green' : 'red' )
 355                                                         . '"'
 356                                                         if $ping;
 357                                                 $style ||= '';
 358                                                 (
 359                                                         qq|<a $style name=$ip target=$ip href=/client/$ip>$ip</a>|
 360                                                         , format::mac( $mac => 'html' )
 361                                                         , $arp->{$mac}
 362                                                         , delete $conf->{hostname}
 363                                                         , html::conf( $ip, $conf, 'inline' )
 364                                                 )
 365                                         } client::all_ips
 366                                 )
 367                                 ;
 368                         print $client qq|
 369                                 <form method=get>
 370                                 <input type=text   name=ping_target   size=15>
 371                                 <input type=submit name=ping value=ping>
 372                                 </form>
 373                         |;
 374                 }
 375
 376
 377         } elsif ( $path =~ m{^/brctl} ) {
 378
 379                 system 'brctl addif virtual ' . $param->{addif} if $param->{addif};
 380                 system 'brctl delif virtual ' . $param->{delif} if $param->{delif};
 381
 382                 my $in_virtual;
 383
 384                 my @table =
 385                         map {
 386                                 my @c = split(/\t+/,$_,4);
 387                                 if ( $#c == 1 ) {
 388                                         $in_virtual->{ $c[1] }++;
 389                                         @c = ( '', '', '', $c[1] );
 390                                 } else {
 391                                         $in_virtual->{ $c[3] }++;
 392                                 }
 393                                 if ( $c[3] =~ m{\d$} ) {
 394                                         $c[3] = qq|<input type=submit name=delif value=$c[3] style="color:red" title="remove $c[3] from bridge">|;
 395                                 }
 396                                 @c
 397                         } split(/\n/, `brctl show`)
 398                 ;
 399
 400                 my @add_ifs = grep { ! $in_virtual->{$_} && $_ ne 'virtual' } ip::devices_up;
 401
 402                 push @table, ( '', '', '', html::select( 'addif', @add_ifs ) . qq|<input type=submit value=add></form>| );
 403
 404                 print $client ok
 405                         , qq|<form>|
 406                         , html::table( -4, @table )
 407                         , qq|</form>|
 408                         ;
 409
 410
 411         } elsif ( $path =~ m{^/ip/?(\w+)?} ) {
 412                 print $client ok
 413                         , join("\n", map { qq|<a href=/ip/$_>$_</a>| } ( qw/link addr route neigh ntable tunnel maddr mroute xfrm/ ))
 414                         , ip::html( $1 )
 415                         ;
 416         } elsif ( $path =~ m{^/nmap} ) {
 417                 if ( my $scan = $param->{scan} ) {
 418                         nmap::scan( $scan );
 419                         print $client redirect("$url/client#$scan");
 420                 } else {
 421                         print $client ok, qq|
 422                                 <form method=get>
 423                                 <input type=text name=scan>
 424                                 <input type=submit value=scan>
 425                                 </form>
 426                         |;
 427                 }
 428         } elsif ( $path =~ m{^/wol/(\S+)} ) {
 429                 print $client redirect( "$url/client/$1" ), wol::power_on($1);
 430         } elsif ( $path =~ m!^/amt/(\w+)/$RE{net}{IPv4}{-keep}! ) {
 431                 my ( $run, $ip ) = ( $1, $2 );
 432                 print $client redirect( "$url/client/$ip" ), amt::RemoteControl( $ip, $run );
 433         } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
 434                 eval 'our $' . $1 . ' = ' . $2;
 435                 warn $@ if $@;
 436                 print $client redirect($url), qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
 437                 server::debug( $debug ) if $1 eq 'debug';
 438         } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
 439                 print $client redirect, daemons::start_stop($1,$param);
 440         } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
 441                 my ( $package, $method ) = ( $1, $2 );
 442                 $ENV{nr} = $1 if $package =~ s{\.(\d+)$}{};
 443                 $package->$method();
 444                 print $client redirect;
 445         } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
 446                 print $client redirect;
 447                 kill 1, $1 || kill 9, $2 && warn "killed $1";
 448         } else {
 449                 print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
 450                 warn "404 $path";
 451         }
 452
 453 }
 454
 455 sub start {
 456
 457         warn 'network ', network::setup();
 458
 459         daemons::start_stop 'browser', { url => $url };
 460         daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd syslogd/ );
 461 #       daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
 462
 463         my $server = IO::Socket::INET->new(
 464                         Proto     => 'tcp',
 465                         LocalAddr => $server::ip,
 466                         LocalPort => $httpd::port,
 467                         Listen    => SOMAXCONN,
 468                         Reuse     => 1
 469         ) || die "can't start server on $url: $!";
 470
 471         print "url $url\n";
 472
 473         syslogd::install_local;
 474         client::rebuild_mac_links;
 475
 476         while (1) {
 477                 my $client = $server->accept() || next; # ALARM trickle us
 478                 my $request = <$client>;
 479
 480                 warn "request $request\n" if $debug;
 481
 482                 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
 483                         my $path = $1;
 484                         $path =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/ge;
 485                         my $param;
 486                         if ( $path =~ s{\?(.+)}{} ) {
 487                                 foreach my $p ( split(/[&;]/, $1) ) {
 488                                         my ($n,$v) = split(/=/, $p, 2);
 489                                         $param->{$n} = $v;
 490                                 }
 491                                 warn "param: ",dump( $param ) if $debug;
 492                         }
 493                         get_request $client, $path, $param;
 494                 } else {
 495                         print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
 496                         warn "500 $request";
 497                 }
 498
 499                 print $client menu() . html_end() if $client->connected;
 500
 501         }
 502
 503         die "server died";
 504 }
 505
 506 warn "loaded";
 507
 508 1;