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 $static_pids;
  43 use progress_bar;
  44 use config;
  45 use client;
  46 use log;
  47 use x11;
  48 use amt;
  49 use boolean;
  50 use daemons;
  51
  52 use kvm;
  53 use browser;
  54 use network;
  55 use ip;
  56 use wireshark;
  57 use syslogd;
  58 use nmap;
  59
  60 use CouchDB;
  61
  62 sub static {
  63         my ($client,$path) = @_;
  64
  65         my $full = "$server::base_dir/tftp/$path";
  66
  67         return if ! -f $full;
  68
  69         if ( my $pid = fork ) {
  70                 # parent
  71                 close($client);
  72                 $static_pids->{$pid} = $path;
  73                 return 1;
  74         }
  75
  76         my $type = 'application/octet-stream';
  77         $type = 'text/html' if $path =~ m{\.htm};
  78         $type = 'application/javascript' if $path =~ m{\.js};
  79         $type = 'text/plain' if $path =~ m{\.txt};
  80
  81         my $size = -s $full || return;
  82
  83         print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
  84
  85         open(my $fh, $full);
  86
  87         my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
  88         my $buff;
  89         my $pos = 0;
  90
  91         CouchDB::audit( 'static', { pid => $$, path => $path, type => $type, size => $size, block => $block, peerhost => $client->peerhost });
  92
  93         progress_bar::start;
  94
  95         while( my $len = read $fh, $buff, $block ) {
  96                 print $client $buff;
  97                 $client->flush;
  98                 $pos += $len;
  99                 progress_bar::tick( $path, $pos, $size );
 100         }
 101         close($fh);
 102         close($client);
 103
 104         print STDERR "\n";
 105
 106         exit(0);
 107 }
 108
 109 sub ok {
 110         qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . menu()
 111 }
 112
 113 sub redirect {
 114         my $to = shift;
 115         $to ||= $url;
 116         qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $to\r\n\r\n|
 117 }
 118
 119 sub get_request {
 120         my ( $client, $path, $param ) = @_;
 121
 122         server->refresh;
 123
 124         CouchDB::audit( 'request', { path => $path, param => $param, peerhost => $client->peerhost } );
 125
 126         if ( my $found = static( $client,$path ) ) {
 127                 warn "static $found" if $debug;
 128         } elsif ( $path eq '/' ) {
 129
 130                 my @rows;
 131
 132                 my $debug_proc = '';
 133
 134 warn "XXX pids = ", dump( $daemons::pids );
 135
 136                 foreach my $name ( sort keys %$daemons::pids ) {
 137                         my $pid = $daemons::pids->{$name}; # || next;
 138
 139                         my $html;
 140
 141                         my $proc = "/proc/$pid/status";
 142
 143                         if ( -e $proc ) {
 144                                 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
 145                                 if ( $debug ) {
 146                                         $html .= qq| <a name=$pid href=#proc-$pid>?</a>| if $name->can('start');
 147
 148                                         $debug_proc
 149                                                 .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
 150                                                 .  read_file($proc)
 151                                                 .  qq|</pre>|
 152                                                 ;
 153                                 }
 154
 155                                 if ( $name->can('fork_if_active') ) {
 156                                         $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $name->fork_if_active;
 157                                 }
 158
 159                                 if ( $name->can('actions') ) {
 160                                         $html .= qq| <a href=/action/$name/$_>$_</a>| foreach $name->actions;
 161                                 }
 162                         } else {
 163                                 if ( $pid =~ m{^\d+$} ) {
 164                                         $html .= qq|$pid exited |
 165                                 } else {
 166                                         $html .= qq|$pid |;
 167                                 }
 168                                 $html .= qq|<a href=/start_stop/$name>restart</a>| if $pid || $name->can('start');
 169                                 if ( $name->can('fork_actions') ) {
 170                                         $html .= qq| <a href=/start_stop/$name/$_>$_</a>| foreach $name->fork_actions;
 171                                 }
 172                         }
 173
 174                         die "no html generated" unless $html;
 175
 176                         push @rows, ( $name => $html );
 177                 }
 178
 179                 my $below_table = '';
 180
 181                 warn 'static_pids: ', dump( $static_pids ) if $debug;
 182                 foreach my $pid ( keys %$static_pids ) {
 183                         my $path = $static_pids->{$pid};
 184                         if ( -d "/proc/$pid" ) {
 185                                 push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
 186                         } elsif ( $param->{clean_completed_downloads} ) {
 187                                 delete $static_pids->{$pid}
 188                         } else {
 189                                 push @rows, ( $path => "$pid competed" );
 190                                 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
 191                         }
 192                 }
 193
 194                 print $client ok
 195                         , html::table( 2, @rows )
 196                         , $below_table
 197                         , html::tabs( log::mac_changes )
 198                         , $debug_proc
 199                         ;
 200
 201         } elsif ( $path =~ m{^/server} ) {
 202                 print $client ok
 203                         , html::table( 2,
 204                                 'debug' => qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
 205                                  map {
 206                                         ( $_, html::tt eval '$server::'.$_ )
 207                                  } ( 'ip', 'netmask', 'ip_from', 'ip_to', 'domain_name', 'base_dir', 'conf' )
 208                         )
 209                         ;
 210         } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
 211                 my $ip = $1;
 212
 213                 if ( $param->{action} eq 'remove' ) {
 214                         client::remove( $param->{change_ip} );
 215                         print $client redirect("$url/client");
 216                         return;
 217                 } elsif ( $param->{action} eq 'change' ) {
 218                         if ( my $new_ip = client::change_ip( $ip, $param->{change_ip} ) ) {
 219                                 print $client redirect("$url/client#$new_ip");
 220                                 return;
 221                         }
 222                 }
 223
 224                 if ( ! $ip ) {
 225                         my $peer_ip = $client->peerhost;
 226
 227                         my $netmask = ip::to_int $server::netmask;
 228                         my $network = ip::to_int $server::ip & $netmask;
 229                         my ( $from, $to ) = ( $network | $server::ip_from, $network | $server::ip_to );
 230                         my $ip_int  = ip::to_int $peer_ip;
 231
 232                         # show edit for clients in our dhcp range
 233                         if ( $ip_int >= ( $network | $server::ip_from ) && $ip_int <= ( $network | $server::ip_to ) ) {
 234                                 $ip = $peer_ip;
 235                         }
 236                 }
 237
 238                 if ( $ip && $ip ne $server::ip ) {
 239                         my $hostname = client::conf( $ip, 'hostname' => $param->{hostname} );
 240
 241                         my @table = (
 242                                 'ip' => qq|<input type=text name=change_ip value="$ip" onChange="document.getElementById('old_ip').style.display = '';"><span id=old_ip style="display: none; color: #888;">old: $ip<span>|,
 243                                 'hostname' => qq|<input type=text name=hostname value="$hostname">|,
 244                         );
 245
 246                         my $deploy;
 247
 248                         if ( my $mac = client::mac_from_ip( $ip ) ) {
 249                                 $deploy = client::conf( $ip, 'deploy' => $param->{deploy} );
 250                                 push @table, (
 251                                         'mac' => format::mac( $mac => 'html' ),
 252                                         'deploy' => html::select( 'deploy', $deploy, config::available )
 253                                 );
 254                                 if ( my $pxelinux = config::for_ip( $ip ) ) {
 255                                         $deploy = qq|<h2>PXElinux</h2>| . html::pre( $pxelinux );
 256                                 }
 257                         }
 258
 259                         print $client ok
 260                                 , qq|<form method=get>|
 261                                 , html::table( 2, @table ),
 262                                 , qq|
 263                                         <input type=submit name=action value=change>
 264                                         <input type=submit name=action value=remove style="color: red">
 265                                         </form>|
 266                                 , $deploy
 267                                 ;
 268
 269                         if ( my $amt = client::conf( $ip, 'amt' ) ) {
 270                                 print $client qq|<h2>AMT</h2>|, amt::info( $amt, $ip );
 271                         }
 272
 273                 } else {
 274
 275                         my $arp = client::arp_mac_dev;
 276                         my @ips = client::all_ips;
 277
 278                         my $ping;
 279                         $ping = ping::fping( @ips ) if $param->{ping};
 280
 281                         print $client ok
 282                                 , qq|<h2>Clients on $server::ip</h2>|
 283                                 , html::table( -6,
 284                                         'ip', 'mac', 'dev', 'hostname', 'deploy', 'conf',
 285                                         map {
 286                                                 my $ip = $_;
 287                                                 my $conf = client::all_conf( $ip );
 288                                                 my $mac = delete $conf->{mac} || '';
 289                                                 my $style;
 290                                                 $style
 291                                                         = 'style="color:'
 292                                                         . ( $ping->{$ip} ? 'green' : 'red' )
 293                                                         . '"'
 294                                                         if $ping;
 295                                                 (
 296                                                         qq|<a $style name=$ip href=/client/$ip>$ip</a>|
 297                                                         , format::mac( $mac => 'html' )
 298                                                         , $arp->{$mac}
 299                                                         , delete $conf->{hostname}
 300                                                         , delete $conf->{deploy}
 301                                                         , ( %$conf ? html::pre_dump( $conf ) : qq|<a href=/nmap?scan=$ip>nmap</a>| )
 302                                                 );
 303                                         } @ips
 304                                 )
 305                                 ;
 306                         print $client qq|
 307                                 <form method=get>
 308                                 <input type=submit name=ping value=ping>
 309                                 </form>
 310                         |;
 311                 }
 312         } elsif ( $path =~ m{^/brctl} ) {
 313                 print $client ok, html::table( -4,
 314                         map {
 315                                 my @c = split(/\t+/,$_,4);
 316                                 if ( $#c == 1 ) {
 317                                         ( '', '', '', $c[1] )
 318                                 } else {
 319                                         @c
 320                                 }
 321                         } split(/\n/, `brctl show`)
 322                 );
 323         } elsif ( $path =~ m{^/ip/?(\w+)?} ) {
 324                 print $client ok
 325                         , join("\n", map { qq|<a href=/ip/$_>$_</a>| } ( qw/link addr route neigh ntable tunnel maddr mroute xfrm/ ))
 326                         , ip::html( $1 )
 327                         ;
 328         } elsif ( $path =~ m{^/nmap} ) {
 329                 if ( my $scan = $param->{scan} ) {
 330                         nmap::scan( $scan );
 331                         print $client redirect("$url/client#$scan");
 332                 } else {
 333                         print $client ok, qq|
 334                                 <form method=get>
 335                                 <input type=text name=scan>
 336                                 <input type=submit value=scan>
 337                                 </form>
 338                         |;
 339                 }
 340         } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
 341                 eval 'our $' . $1 . ' = ' . $2;
 342                 warn $@ if $@;
 343                 print $client redirect($url), qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
 344                 server::debug( $debug ) if $1 eq 'debug';
 345         } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
 346                 print $client redirect, daemons::start_stop($1);
 347         } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
 348                 $1->$2();
 349                 print $client redirect;
 350         } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
 351                 print $client redirect;
 352                 kill 1, $1 || kill 9, $2 && warn "killed $1";
 353         } else {
 354                 print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
 355                 warn "404 $path";
 356         }
 357
 358 }
 359
 360 sub start {
 361
 362         warn 'network ', network::setup();
 363
 364         daemons::start_stop 'browser', $url;
 365         daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd syslogd/ );
 366         daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
 367
 368         my $server = IO::Socket::INET->new(
 369                         Proto     => 'tcp',
 370                         LocalAddr => $server::ip,
 371                         LocalPort => $httpd::port,
 372                         Listen    => SOMAXCONN,
 373                         Reuse     => 1
 374         ) || die "can't start server on $url: $!";
 375
 376         print "url $url\n";
 377
 378         while (1) {
 379                 my $client = $server->accept() || next; # ALARM trickle us
 380                 my $request = <$client>;
 381
 382                 warn "request $request\n" if $debug;
 383
 384                 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
 385                         my $path = $1;
 386                         $path =~ s/%([0-9A-Fa-f]{2})/chr(hex($1))/ge;
 387                         my $param;
 388                         if ( $path =~ s{\?(.+)}{} ) {
 389                                 foreach my $p ( split(/[&;]/, $1) ) {
 390                                         my ($n,$v) = split(/=/, $p, 2);
 391                                         $param->{$n} = $v;
 392                                 }
 393                                 warn "param: ",dump( $param ) if $debug;
 394                         }
 395                         get_request $client, $path, $param;
 396                 } else {
 397                         print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
 398                         warn "500 $request";
 399                 }
 400
 401                 print $client menu() if $client->connected;
 402
 403         }
 404
 405         die "server died";
 406 }
 407
 408 warn "loaded";
 409
 410 1;