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