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 || $client->peerhost;
 212
 213                 if ( my $new_ip = $param->{change_ip} ) {
 214                         client::change_ip( $ip, $new_ip );
 215                         $ip = $new_ip;
 216                 }
 217
 218                 my $ip_short = (split(/\./, $ip, 4))[3];
 219
 220                 # if ( $ip ne $server::ip ) -- not flexible enough for tunnel endpoints
 221                 if ( $ip_short >= $server::ip_from && $ip_short <= $server::ip_to ) {
 222                         my $hostname = client::conf( $ip, 'hostname' => $param->{hostname} );
 223
 224                         my @table = (
 225                                 'ip' => qq|<input type=text name=change_ip value="$ip" onChange="document.getElementById('old_ip').style.display = '';"><span id=old_ip style="display: none; color: #888;">old: $ip<span>|,
 226                                 'hostname' => qq|<input type=text name=hostname value="$hostname">|,
 227                         );
 228
 229                         my $deploy;
 230
 231                         if ( my $mac = client::mac_from_ip( $ip ) ) {
 232                                 $deploy = client::conf( $ip, 'deploy' => $param->{deploy} );
 233                                 push @table, (
 234                                         'mac' => format::mac( $mac => 'html' ),
 235                                         'deploy' => html::select( 'deploy', $deploy, config::available )
 236                                 );
 237                                 if ( my $pxelinux = config::for_ip( $ip ) ) {
 238                                         $deploy = qq|<h2>PXElinux</h2>| . html::pre( $pxelinux );
 239                                 }
 240                         }
 241
 242                         print $client ok
 243                                 , qq|<form method=get>|
 244                                 , html::table( 2, @table ),
 245                                 , qq|<input type=submit value=change></form>|
 246                                 , $deploy
 247                                 ;
 248
 249                         if ( my $amt = client::conf( $ip, 'amt' ) ) {
 250                                 print $client qq|<h2>AMT</h2>|, amt::info( $amt, $ip );
 251                         }
 252                 } else {
 253
 254                         my $arp = {
 255                                 map {
 256                                         my @c = split(/\s+/,$_);
 257                                         if ( $#c == 5 ) {
 258                                                 client::save_ip_mac( $c[0], $c[3] );
 259                                                 ( uc $c[3] => [ $c[0] , $c[5] ] )
 260                                         } else {
 261                                         }
 262                                 } read_file('/proc/net/arp')
 263                         };
 264
 265                         warn "# arp ",dump( $arp );
 266
 267                         print $client ok
 268                                 , qq|<h2>Clients on $server::ip</h2>|
 269                                 , html::table( -6,
 270                                         'ip', 'mac', 'arp', 'hostname', 'deploy', 'conf',
 271                                         map {
 272                                                 my $ip = $_;
 273                                                 my $conf = client::all_conf( $ip );
 274                                                 my $mac = delete $conf->{mac} || '';
 275                                                 (
 276                                                         qq|<a name=$ip href=/client/$ip>$ip</a>|
 277                                                         , format::mac( $mac => 'html' )
 278                                                         , ( $arp->{$mac} ? $arp->{$mac}->[1] : '' )
 279                                                         , delete $conf->{hostname}
 280                                                         , delete $conf->{deploy}
 281                                                         , ( %$conf ? html::pre_dump( $conf ) : qq|<a href=/nmap?scan=$ip>nmap</a>| )
 282                                                 );
 283                                         }
 284                                         sort { ip::to_int($a) cmp ip::to_int($b) }
 285                                         map {
 286                                                 my $ip = $_;
 287                                                 $ip =~ s{^.+/ip/}{};
 288                                                 $ip;
 289                                         } glob("$server::conf/ip/*")
 290                                 )
 291                                 ;
 292                 }
 293         } elsif ( $path =~ m{^/brctl} ) {
 294                 print $client ok
 295                         ,html::pre( `brctl show` )
 296                         ;
 297         } elsif ( $path =~ m{^/ip/?(\w+)?} ) {
 298                 print $client ok
 299                         , join("\n", map { qq|<a href=/ip/$_>$_</a>| } ( qw/link addr route neigh ntable tunnel maddr mroute xfrm/ ))
 300                         , ip::html( $1 )
 301                         ;
 302         } elsif ( $path =~ m{^/nmap} ) {
 303                 if ( my $scan = $param->{scan} ) {
 304                         nmap::scan( $scan );
 305                         print $client redirect("$url/client#$scan");
 306                 } else {
 307                         print $client ok, qq|
 308                                 <form method=get>
 309                                 <input type=text name=scan>
 310                                 <input type=submit value=scan>
 311                                 </form>
 312                         |;
 313                 }
 314         } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
 315                 eval 'our $' . $1 . ' = ' . $2;
 316                 warn $@ if $@;
 317                 print $client redirect($url), qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
 318                 server::debug( $debug ) if $1 eq 'debug';
 319         } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
 320                 print $client redirect, daemons::start_stop($1);
 321         } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
 322                 $1->$2();
 323                 print $client redirect;
 324         } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
 325                 print $client redirect;
 326                 kill 1, $1 || kill 9, $2 && warn "killed $1";
 327         } else {
 328                 print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
 329                 warn "404 $path";
 330         }
 331
 332 }
 333
 334 sub start {
 335
 336         warn 'network ', network::setup();
 337
 338         daemons::start_stop 'browser', $url;
 339         daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd syslogd/ );
 340         daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
 341
 342         my $server = IO::Socket::INET->new(
 343                         Proto     => 'tcp',
 344                         LocalAddr => $server::ip,
 345                         LocalPort => $httpd::port,
 346                         Listen    => SOMAXCONN,
 347                         Reuse     => 1
 348         ) || die "can't start server on $url: $!";
 349
 350         print "url $url\n";
 351
 352         while (1) {
 353                 my $client = $server->accept() || next; # ALARM trickle us
 354                 my $request = <$client>;
 355
 356                 warn "request $request\n" if $debug;
 357
 358                 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
 359                         my $path = $1;
 360                         my $param;
 361                         if ( $path =~ s{\?(.+)}{} ) {
 362                                 foreach my $p ( split(/[&;]/, $1) ) {
 363                                         my ($n,$v) = split(/=/, $p, 2);
 364                                         $param->{$n} = $v;
 365                                 }
 366                                 warn "param: ",dump( $param ) if $debug;
 367                         }
 368                         get_request $client, $path, $param;
 369                 } else {
 370                         print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
 371                         warn "500 $request";
 372                 }
 373
 374                 print $client menu() if $client->connected;
 375
 376         }
 377
 378         die "server died";
 379 }
 380
 381 warn "loaded";
 382
 383 1;