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=/client>client</a>
  28 </div>
  29
  30 }}
  31
  32 our $port = 7777;
  33
  34 use server;
  35 our $debug = server::debug;
  36 our $url = "http://$server::ip:$port";
  37
  38 use html;
  39 our $static_pids;
  40 use progress_bar;
  41 use config;
  42 use client;
  43 use log;
  44 use x11;
  45 use amt;
  46 use boolean;
  47 use daemons;
  48
  49 use kvm;
  50 use browser;
  51 use network;
  52
  53
  54 sub static {
  55         my ($client,$path) = @_;
  56
  57         my $full = "$server::base_dir/tftp/$path";
  58
  59         return if ! -f $full;
  60
  61         if ( my $pid = fork ) {
  62                 # parent
  63                 close($client);
  64                 print "http static child $pid\n";
  65                 $static_pids->{$pid} = $path;
  66                 return 1;
  67         }
  68
  69         my $type = 'application/octet-stream';
  70         $type = 'text/html' if $path =~ m{\.htm};
  71         $type = 'application/javascript' if $path =~ m{\.js};
  72         $type = 'text/plain' if $path =~ m{\.txt};
  73
  74         my $size = -s $full || return;
  75
  76         print $client "HTTP/1.0 200 OK\r\nContent-Type: $type\r\nContent-Length: $size\r\nConnection: close\r\n\r\n";
  77
  78         open(my $fh, $full);
  79
  80         my $block = 1400; # try not to fragment packages (pxelinux seems to have problems with it)
  81         my $buff;
  82         my $pos = 0;
  83
  84         warn "static $path $type $size block: $block\n";
  85
  86         progress_bar::start;
  87
  88         while( my $len = read $fh, $buff, $block ) {
  89                 print $client $buff;
  90                 $client->flush;
  91                 $pos += $len;
  92                 progress_bar::tick( $path, $pos, $size );
  93         }
  94         close($fh);
  95         close($client);
  96
  97         print STDERR "\n";
  98
  99         warn "exit static child";
 100
 101         exit(0);
 102 }
 103
 104 my $ok =       qq|HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nConnection: close\r\n\r\n| . menu();
 105 my $redirect = qq|HTTP/1.1 302 Found\r\nContent-type: text/html\r\nLocation: $url\r\n\r\n|;
 106
 107 sub get_request {
 108         my ( $client, $path, $param ) = @_;
 109
 110         server->refresh;
 111
 112         warn "get_request $path ", $param ? dump( $param ) : '', "\n";
 113
 114         if ( my $found = static( $client,$path ) ) {
 115                 warn "static $found" if $debug;
 116         } elsif ( $path eq '/' ) {
 117
 118                 my @rows = (
 119                         'debug',        qq|<a href=/our/debug/| . boolean::toggle($debug) . qq|>$debug</a>|,
 120                 );
 121
 122                 my $debug_proc = '';
 123
 124                 foreach my $name ( sort keys %$daemons::pids ) {
 125                         my $pid = $daemons::pids->{$name} || next;
 126
 127                         my $html;
 128
 129                         my $proc = "/proc/$pid/status";
 130
 131                         if ( -e $proc ) {
 132                                 $html .= qq|<a href=/start_stop/$name>$pid</a>|;
 133                                 if ( $debug ) {
 134                                         $html .= qq| <a name=$pid href=#proc-$pid>?</a>|;
 135
 136                                         $debug_proc
 137                                                 .= qq|<a name=proc-$pid href=#$pid>$proc</a><pre style="font-size: 10%">|
 138                                                 .  read_file($proc)
 139                                                 .  qq|</pre>|
 140                                                 ;
 141                                 }
 142
 143                                 if ( $name->can('start_fork') ) {
 144                                         $html .= qq| <a href=/start_stop/kvm/$_>$_</a>| foreach $name->start_fork;
 145                                 }
 146
 147                                 if ( $name->can('actions') ) {
 148                                         $html .= qq| <a href=/action/kvm/$_>$_</a>| foreach $name->actions;
 149                                 }
 150                         } else {
 151                                 $html .= qq|<a href=/start_stop/$name>restart</a> $pid exited|;
 152                         }
 153
 154                         push @rows, ( $name => $html );
 155                 }
 156
 157                 my $below_table = '';
 158
 159                 warn 'static_pids: ', dump( $static_pids ) if $debug;
 160                 foreach my $pid ( keys %$static_pids ) {
 161                         my $path = $static_pids->{$pid};
 162                         if ( -d "/proc/$pid" ) {
 163                                 push @rows, ( $path => qq|<a href=/kill/static/$pid>$pid</a>| );
 164                         } elsif ( $param->{clean_completed_downloads} ) {
 165                                 delete $static_pids->{$pid}
 166                         } else {
 167                                 push @rows, ( $path => "$pid competed" );
 168                                 $below_table = qq|<a href="/?clean_completed_downloads=1">clean completed downloads</a>|;
 169                         }
 170                 }
 171
 172                 print $client $ok
 173                         , html::table( 2, @rows )
 174                         , $below_table
 175                         , html::tabs( log::mac_changes )
 176                         , $debug_proc
 177                         ;
 178
 179         } elsif ( $path =~ m{^/server} ) {
 180                 print $client $ok
 181                         , html::table( 2, map { ( $_, html::tt eval '$server::'.$_ ) } ( 'ip', 'netmask', 'ip_from', 'ip_to', 'domain_name', 'base_dir', 'conf' ) )
 182                         ;
 183         } elsif ( $path =~ m!^/client(?:/$RE{net}{IPv4}{-keep})?! ) {
 184                 my $ip = $1 || $client->peerhost;
 185                 if ( $ip ne $server::ip ) {
 186                         my $hostname = client::conf( $ip, 'hostname' => $param->{hostname} );
 187                         my $deploy   = client::conf( $ip, 'deploy'   => $param->{deploy}   );
 188                         print $client $ok
 189                                 , qq|<form method=get>|
 190                                 , html::table( 2,
 191                                         'ip' => $ip,
 192                                         'mac' => client::mac( $ip ),
 193                                         'hostname' => qq|<input type=text name=hostname value=$hostname>|,
 194                                         'deploy' => html::select( 'deploy', $deploy, config::available ),
 195                                 )
 196                                 , qq|<input type=submit value=change></form>|
 197                                 , qq|<h2>PXElinux $deploy</h2><pre>|
 198                                 , config::for_ip( $ip )
 199                                 , qq|</pre>|
 200                                 ;
 201
 202                         if ( my $amt = client::conf( $ip, 'amt' ) ) {
 203                                 print $client amt::info( $amt );
 204                         }
 205                 } else {
 206                         print $client $ok
 207                                 , qq|<h2>Clients on $server::ip</h2>|
 208                                 , html::table( -4,
 209                                         'ip', 'mac', 'hostname', 'deploy',
 210                                         map {
 211                                                 my $ip = $_;
 212                                                 $ip =~ s{^.+/ip/}{};
 213                                                 ( qq|<a href=/client/$ip>$ip</a>|, client::mac($ip), client::conf( $ip, 'hostname' ), html::tt client::conf( $ip, 'deploy' ) );
 214                                         }
 215                                         glob("$server::conf/ip/*")
 216                                 )
 217                                 ;
 218                 }
 219         } elsif ( $path =~ m{^/our/(\w+)/(\S+)} ) {
 220                 eval 'our $' . $1 . ' = ' . $2;
 221                 warn $@ if $@;
 222                 print $client $redirect, qq|<big>$1 = $2</big><br>Location: <a href="$url">$url</a>|;
 223                 server::debug( $debug ) if $1 eq 'debug';
 224         } elsif ( $path =~ m{^/start_stop/(\S+)} ) {
 225                 print $client $redirect, daemons::start_stop($1);
 226         } elsif ( $path =~ m{^/action/([^/]+)/(.+)} ) {
 227                 $1->$2();
 228                 print $client $redirect;
 229         } elsif ( $path =~ m{^/kill/static/(\d+)} ) {
 230                 print $client $redirect;
 231                 kill 1, $1 || kill 9, $2 && warn "killed $1";
 232         } else {
 233                 print $client "HTTP/1.0 404 $path\r\nConnection: close\r\nContent-type: text/html\r\n\r\n<big>404 $path</big>";
 234                 warn "404 $path";
 235         }
 236
 237 }
 238
 239 sub start {
 240
 241         warn 'tap ', network::tap();
 242
 243         my $server = IO::Socket::INET->new(
 244                         Proto     => 'tcp',
 245                         LocalAddr => $server::ip,
 246                         LocalPort => $httpd::port,
 247                         Listen    => SOMAXCONN,
 248                         Reuse     => 1
 249         ) || die "can't start server on $url: $!";
 250
 251         print "url $url\n";
 252
 253         daemons::start_stop 'browser', $url;
 254         daemons::start_stop $_ foreach ( qw/dhcpd tftpd dnsd/ );
 255         daemons::start_stop 'kvm' unless $ENV{DEV}; # skip kvm statup when running on real device
 256
 257         while (1) {
 258                 my $client = $server->accept() || next; # ALARM trickle us
 259                 my $request = <$client>;
 260
 261                 warn "request $request\n" if $debug;
 262
 263                 if ($request =~ m{^GET (/.*) HTTP/1.[01]}) {
 264                         my $path = $1;
 265                         my $param;
 266                         if ( $path =~ s{\?(.+)}{} ) {
 267                                 foreach my $p ( split(/[&;]/, $1) ) {
 268                                         my ($n,$v) = split(/=/, $p, 2);
 269                                         $param->{$n} = $v;
 270                                 }
 271                                 warn "param: ",dump( $param ) if $debug;
 272                         }
 273                         get_request $client, $path, $param;
 274                 } else {
 275                         print $client "HTTP/1.0 500 No method\r\nConnection: close\r\nContent-type: text/plain\r\n\r\n500 $request";
 276                         warn "500 $request";
 277                 }
 278
 279                 print $client menu() if $client->connected;
 280
 281         }
 282
 283         die "server died";
 284 }
 285
 286 warn "loaded";
 287
 288 1;