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 our $port = 7777;
  40
  41 use server;
  42 our $debug = server::debug;
  43 our $url = "http://$server::ip:$port";
  44
  45 use html;
  46 our $static_pids;
  47 use progress_bar;
  48 use config;
  49 use client;
  50 use log;
  51 use x11;
  52 use amt;
  53 use daemons;
  54
  55 use kvm;
  56 use browser;
  57 use network;
  58 use ip;
  59 use wireshark;
  60 use syslogd;
  61 use nmap;
  62 use ping;
  63 use wol;
  64
  65 use store;
  66
  67
  68 sub menu {
  69         my $couch_url = $url;
  70         $couch_url =~ s{:\d+.+}{:5984/_utils/};
  71 qq{
  72 <div style="font-size: 80%; color: #888">
  73 <a target=pids href=/ >home</a>
  74 |
  75 <a target=server href=/server >server</a>
  76 <a target=server href=/brctl >brctl</a>
  77 <a target=server href=/ip >ip</a>
  78 |
  79 <a target=couch href=$couch_url >couchdb</a>
  80 |
  81 <a target=client href=/nmap >nmap</a>
  82 <a target=client href=/client >client</a>
  83 </div>
  84
  85 }}
  86
  87
  88 sub static {
  89         my ($client,$path) = @_;
  90
  91         my $full = "$server::base_dir/tftp/$path";
  92
  93         return if ! -f $full;
  94
  95         return if $full =~ m{\.ico$};
  96
  97         if ( my $pid = fork ) {
  98                 # parent
  99                 close($client);
 100                 $static_pids->{$pid} = $path;
 101                 return 1;
 102         }
 103
 104         my $type = 'application/octet-stream';
 105         $type = 'text/html' if $path =~ m{\.htm};
 106         $type = 'application/javascript' if $path =~ m{\.js};
 107         $type = 'text/plain' if $path =~ m{\.txt};
 108
 109         my $size = -s $full || return;
 110
 111         print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
 112
 113         open(my $fh, $full);
 114
 115         my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
 116         my $buff;
 117         my $pos = 0;
 118
 119         store::audit( 'static', { pid => $$, path => $path, type => $type, size => $size, block => $block, peerhost => $client->peerhost });
 120
 121         progress_bar::start;
 122
 123         while( my $len = read $fh, $buff, $block ) {
 124                 print $client $buff;
 125                 $client->flush;
 126                 $pos += $len;
 127                 progress_bar::tick( $path, $pos, $size );
 128         }
 129         close($fh);
 130         close($client);
 131
 132         print STDERR "\n";
 133
 134         exit(0);
 135 }
 136
 137 sub ok {
 138         qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . html_start() . menu()
 139 }
 140
 141 sub redirect {
 142         my $to = shift;
 143         $to ||= $url;
 144         qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $to\r\n\r\n|
 145 }
 146
 147 sub toggle {
 148         my $v = shift;
 149         return $v ? 0 : 1;
 150 }
 151
 152 sub get_request {
 153         my ( $client, $path, $param ) = @_;
 154
 155         server->refresh;
 156
 157         store::audit( 'request', { path => $path, param => $param, peerhost => $client->peerhost } );
 158
 159         $title = $path;
 160
 161         if ( my $found = static( $client,$path ) ) {
 162                 warn "static $found" if $debug;
 163         } elsif ( $path eq '/' ) {
 164
 165                 my @rows;
 166
 167                 my $debug_proc = '';
 168
 169 warn "XXX pids = ", dump( $daemons::pids );
 170
 171                 foreach my $name ( sort keys %$daemons::pids ) {
 172                         my $pid = $daemons::pids->{$name}; # || next;
 173
 174                         my $html;
 175
 176                         my $proc = "/proc/$pid/status";
 177
 178                         if ( -e $proc ) {
 179                                 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
 180                                 if ( $debug ) {
 181                                         $html .= qq| <a name=$pid href=#proc-$pid>?</a>| if $name->can('start');
 182
 183                                         $debug_proc
 184                                                 .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
 185                                                 .  read_file($proc)
 186                                                 .  qq|</pre>|
 187                                                 ;
 188                                 }
 189
 190                                 my $class = $name;
 191                                 $class =~ s{\.\d+$}{};
 192
 193                                 if ( $class->can('fork_if_active') ) {
 194                                         $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $class->fork_if_active;
 195                                 }
 196
 197                                 if ( $class->can('actions') ) {
 198                                         $html .= qq| <a href=/action/$name/$_>$_</a>| foreach $class->actions;
 199                                 }
 200                         } else {
 201                                 if ( $pid =~ m{^\d+$} ) {
 202                                         $html .= qq|$pid exited |
 203                                 } else {
 204                                         $html .= qq|$pid |;
 205                                 }
 206                                 $html .= qq|<a href=/start_stop/$name>restart</a>| if $pid || $name->can('start');
 207                                 if ( $name->can('fork_actions') ) {
 208                                         $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $name->fork_actions;
 209                                 }
 210                         }
 211
 212                         die "no html generated" unless $html;
 213
 214                         push @rows, ( $name => $html );
 215                 }
 216
 217                 my $below_table = '';
 218
 219                 warn 'static_pids: ', dump( $static_pids ) if $debug;
 220                 foreach my $pid ( keys %$static_pids ) {
 221                         my $path = $static_pids->{$pid};
 222                         if ( -d "/proc/$pid" ) {
 223                                 push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
 224                         } elsif ( $param->{clean_completed_downloads} ) {
 225                                 delete $static_pids->{$pid}
 226                         } else {
 227                                 push @rows, ( $path => "$pid competed" );
 228                                 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
 229                         }
 230                 }
 231
 232                 my $kvm = kvm::next_nr;
 233                 $kvm = qq|<div><a href=/start_stop/kvm?nr=$kvm>create new kvm $kvm</a></div>|;
 234
 235                 print $client ok
 236                         , html::table( 2, @rows )
 237                         , $below_table
 238                         , $kvm
 239                         , html::tabs( log::mac_changes )
 240                         , $debug_proc
 241                         ;
 242
 243         } elsif ( $path =~ m{^/server} ) {
 244                 foreach my $name ( keys %$param ) {
 245                         eval '$server::' . $name . '= $param->{$name}';
 246                 }
 247                 my @table = (
 248                           'debug' => qq|<a href=/our/debug/| . toggle($debug) . qq|>$debug</a>|,
 249                         , 'new_clients' => qq|<input type=text name=new_clients size=3 value="$server::new_clients">|
 250                 );
 251
 252                 foreach my $editable ( 'ip', 'bcast', 'netmask', 'ip_from', 'ip_to', 'domain' ) {
 253                         my $v = eval '$server::' . $editable;
 254                         push @table, ( $editable, qq|<input type=text name=$editable value="$v">| );
 255                 }
 256
 257                 foreach my $readonly ( 'base_dir', 'conf' ) {
 258                         my $v = eval '$server::' . $readonly;
 259                         push @table, ( $readonly, html::tt $v );
 260                 }
 261
 262                 print $client ok
 263                         , qq|<form method=get>|
 264                         , html::table( 2, @table )
 265                         , qq|
 266                                 <input type=submit name=action value=change>
 267                                 </form>
 268                         |
 269                         ;
 270
 271         } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
 272                 my $ip = $1;
 273                 $title = $ip if $ip;
 274
 275                 if ( $param->{action} eq 'remove' ) {
 276                         client::remove( $param->{change_ip} );
 277                         print $client redirect("$url/client");
 278                         return;
 279                 } elsif ( $param->{action} eq 'change' ) {
 280                         if ( my $new_ip = client::change_ip( $ip, $param->{change_ip} ) ) {
 281                                 print $client redirect("$url/client#$new_ip");
 282                                 return;
 283                         }
 284                 }
 285
 286                 if ( ! $ip ) {
 287                         my $peer_ip = $client->peerhost;
 288
 289                         my $netmask  = ip::to_int $server::netmask;
 290                         my $network  = ip::to_int($server::ip) & $netmask;
 291                         my $from_int = $network | $server::ip_from;
 292                         my $to_int   = $network | $server::ip_to;
 293                         my $ip_int   = ip::to_int $peer_ip;
 294
 295                         # show edit for clients in our dhcp range
 296                         if ( $ip_int >= $from_int && $ip_int <= $to_int ) {
 297                                 $ip = $peer_ip;
 298                         }
 299                 }
 300
 301                 if ( $ip && $ip ne $server::ip ) {
 302
 303                         my @editable = ( qw/hostname config homepage/ );
 304
 305                         client::conf( $ip, $_ => $param->{$_} ) foreach @editable;
 306
 307                         my $conf = client::all_conf( $ip );
 308                         my $config = delete $conf->{config};
 309
 310                         my $nmap = qq|<a href=/nmap?scan=$ip>nmap</a>|;
 311                         my @table = (
 312                                 'ping' => ping::host($ip)
 313                                         ? qq|<span style="color:green">up</span> $nmap|
 314                                         : qq|<span style="color: red">down</span> <a href=/wol/$ip>wol</a> $nmap|
 315                                         ,
 316                                 'ip' => qq|<input type=text name=change_ip value="$ip" onChange="document.getElementById('old_ip').style.display = '';"><span id=old_ip style="display: none; color: #888;">old: $ip<span>|,
 317                                 'mac' => format::mac( delete $conf->{mac}, 'html' ),
 318                                 'hostname' => qq|<input type=text name=hostname value="| . delete($conf->{hostname}) . qq|">|,
 319                                 'config' => html::select( 'config', $config, config::available ),
 320                                 html::conf( $ip, $conf, 'edit', @editable )
 321                         );
 322
 323                         print $client ok
 324                                 , qq|<form method=get>|
 325                                 , html::table( 2, @table ),
 326                                 , qq|
 327                                         <input type=submit name=action value=change>
 328                                         <input type=submit name=action value=remove style="color: red">
 329                                         </form>|
 330                                 ;
 331
 332                         if ( $config ) {
 333                                 if ( my $for_ip = config::for_ip( $ip ) ) {
 334                                         print $client qq|<h2>config::for_ip</h2>| . html::pre( $for_ip );
 335                                 }
 336                         }
 337
 338                         if ( $conf->{amt} ) {
 339                                 print $client qq|<h2>amt network</h2>|, html::pre_dump( amt::network( $ip ) );
 340                                 print $client qq|<h2>amt log</h2>|, html::pre_dump( amt::log( $ip ) );
 341                         }
 342
 343                 } else {
 344
 345                         print $client ok qq|<h2>Clients on $server::ip</h2>|;
 346
 347                         my @ping;
 348                         if ( my $host = $param->{ping_target} ) {
 349                                 @ping = ( $host );
 350                         } elsif ( $param->{ping} ) {
 351                                 @ping = client::all_ips;
 352                         }
 353
 354                         my $ping = ping::fping( @ping ) if @ping;
 355                         my $arp = client::arp_mac_dev;
 356
 357                         my @clients;
 358
 359                         foreach my $ip ( client::all_ips ) {
 360
 361                                 my $conf = client::all_conf( $ip );
 362                                 my $mac = delete $conf->{mac} || '';
 363                                 my $dev = $arp->{$mac};
 364
 365                                 next unless $dev || $param->{all};
 366
 367                                 my $style
 368                                         = 'style="color:'
 369                                         . ( $ping->{$ip} ? 'green' : 'red' )
 370                                         . '"'
 371                                         if $ping;
 372
 373                                 $style ||= '';
 374                                 my $ip_text = qq|<tt>$ip</tt>|;
 375                                 $ip_text = qq|<tt><b>$ip</b></tt>| if ip::in_dhcp_range($ip);
 376
 377                                 $dev = qq|<tt>$dev</tt>| if $dev;
 378
 379                                 push @clients
 380                                         , qq|<a $style name=$ip target=client href=/client/$ip>$ip_text</a>|
 381                                         , format::mac( $mac => 'html' )
 382                                         , $dev
 383                                         , delete $conf->{hostname}
 384                                         , html::conf( $ip, $conf, 'inline' )
 385                                 ;
 386                         }
 387
 388                         my $all = $param->{all} ? 0 : 1;
 389
 390                         print $client html::table( -5, 'ip', 'mac', qq|<a href="?all=$all">dev</a>|, 'hostname', 'conf', @clients );
 391                         print $client qq|
 392                                 <form method=get>
 393                                 <input type=text   name=ping_target   size=15>
 394                                 <input type=submit name=ping value=ping>
 395                                 </form>
 396                         |;
 397                 }
 398
 399
 400         } elsif ( $path =~ m{^/brctl} ) {
 401
 402                 system 'brctl addif virtual ' . $param->{addif} if $param->{addif};
 403                 system 'brctl delif virtual ' . $param->{delif} if $param->{delif};
 404
 405                 my $in_virtual;
 406
 407                 my @table =
 408                         map {
 409                                 my @c = split(/\t+/,$_,4);
 410                                 if ( $#c == 1 ) {
 411                                         $in_virtual->{ $c[1] }++;
 412                                         @c = ( '', '', '', $c[1] );
 413                                 } else {
 414                                         $in_virtual->{ $c[3] }++;
 415                                 }
 416                                 if ( $c[3] =~ m{\d$} ) {
 417                                         $c[3] = qq|<input type=submit name=delif value=$c[3] style="color:red" title="remove $c[3] from bridge">|;
 418                                 }
 419                                 @c
 420                         } split(/\n/, `brctl show`)
 421                 ;
 422
 423                 my @add_ifs = grep { ! $in_virtual->{$_} && $_ ne 'virtual' } ip::devices_up;
 424
 425                 push @table, ( '', '', '', html::select( 'addif', @add_ifs ) . qq|<input type=submit value=add></form>| );
 426
 427                 print $client ok
 428                         , qq|<form>|
 429                         , html::table( -4, @table )
 430                         , qq|</form>|
 431                         ;
 432
 433
 434         } elsif ( $path =~ m{^/ip/?(\w+)?} ) {
 435                 print $client ok
 436                         , join("\n", map { qq|<a href=/ip/$_>$_</a>| } ( qw/link addr route neigh ntable tunnel maddr mroute xfrm/ ))
 437                         , ip::html( $1 )
 438                         ;
 439         } elsif ( $path =~ m{^/nmap} ) {
 440                 if ( my $scan = $param->{scan} ) {
 441                         nmap::scan( $scan );
 442                         print $client redirect("$url/client#$scan");
 443                 } else {
 444                         print $client ok, qq|
 445                                 <form method=get>
 446                                 <input type=text name=scan>
 447                                 <input type=submit value=scan>
 448                                 </form>
 449                         |;
 450                 }
 451         } elsif ( $path =~ m{^/wol/(\S+)} ) {
 452                 print $client redirect( "$url/client/$1" ), wol::power_on($1);
 453         } elsif ( $path =~ m!^/amt/(\w+)/$RE{net}{IPv4}{-keep}! ) {
 454                 my ( $run, $ip ) = ( $1, $2 );
 455                 print $client redirect( "$url/client/$ip" ), amt::RemoteControl( $ip, $run );
 456         } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
 457                 eval 'our $' . $1 . ' = ' . $2;
 458                 warn $@ if $@;
 459                 print $client redirect($url), qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
 460                 server::debug( $debug ) if $1 eq 'debug';
 461         } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
 462                 print $client redirect, daemons::start_stop($1,$param);
 463         } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
 464                 my ( $package, $method ) = ( $1, $2 );
 465                 $ENV{nr} = $1 if $package =~ s{\.(\d+)$}{};
 466                 $package->$method();
 467                 print $client redirect;
 468         } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
 469                 print $client redirect;
 470                 kill 1, $1 || kill 9, $2 && warn "killed $1";
 471         } else {
 472                 print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
 473                 warn "404 $path";
 474         }
 475
 476 }
 477
 478 sub start {
 479
 480         warn 'network ', network::setup();
 481
 482         daemons::start_stop 'browser', { url => $url };
 483         daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd syslogd/ );
 484 #       daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
 485
 486         my $server = IO::Socket::INET->new(
 487                         Proto     => 'tcp',
 488 #                       LocalAddr => $server::ip,
 489                         LocalPort => $httpd::port,
 490                         Listen    => SOMAXCONN,
 491                         Reuse     => 1
 492         ) || die "can't start server on $url: $!";
 493
 494         print "url $url\n";
 495
 496         syslogd::install_local;
 497         client::rebuild_mac_links;
 498
 499         while (1) {
 500                 my $client = $server->accept() || next; # ALARM trickle us
 501                 my $request = <$client>;
 502
 503                 my $headers;
 504
 505                 while ( my $header = <$client> ) {
 506                         chomp $header;
 507                         last if $header =~ m{^\s*$};
 508                         my ( $n, $v ) = split(/:\s*/, $header);
 509                         $headers->{ lc $n } = $v;
 510                 }
 511
 512                 if ( my $host = $headers->{host} ) {
 513                         $url = 'http://' . $host;
 514                         $url .= ":$port" unless $url =~ m{:\d+$};
 515                 }
 516
 517                 warn "## $url ## $request", dump( $headers ) if $debug;
 518
 519                 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
 520                         my $path = $1;
 521                         $path =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/ge;
 522                         my $param;
 523                         if ( $path =~ s{\?(.+)}{} ) {
 524                                 foreach my $p ( split(/[&;]/, $1) ) {
 525                                         my ($n,$v) = split(/=/, $p, 2);
 526                                         $param->{$n} = $v;
 527                                 }
 528                                 warn "param: ",dump( $param ) if $debug;
 529                         }
 530                         get_request $client, $path, $param;
 531                 } else {
 532                         print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
 533                         warn "500 $request";
 534                 }
 535
 536                 print $client menu() . html_end() if $client->connected;
 537
 538         }
 539
 540         die "server died";
 541 }
 542
 543 warn "loaded";
 544
 545 1;