perl/Thingy/Hello.pm

   1 #
   2 # Hello Thingy handling
   3 #
   4 # Note that this is a generator of pc19n and pc16n/pc16u
   5 # and a consumer of fpc19n and fpc16n
   6 #
   7 # $Id$
   8 #
   9 # Copyright (c) 2005 Dirk Koopman G1TLH
  10 #
  11
  12 use strict;
  13
  14 package Thingy::Hello;
  15
  16 use vars qw($VERSION $BRANCH);
  17
  18 main::mkver($VERSION = q$Revision$);
  19
  20 use DXChannel;
  21 use DXDebug;
  22 use Verify;
  23 use Thingy;
  24 use Thingy::RouteFilter;
  25 use Thingy::Rt;
  26
  27 use vars qw(@ISA $verify_on_login);
  28 @ISA = qw(Thingy Thingy::RouteFilter);
  29
  30 $verify_on_login = 1;                   # make sure that a HELLO coming from
  31                                 # the dxchan call is authentic
  32
  33 sub gen_Aranea
  34 {
  35         my $thing = shift;
  36         my $dxchan = shift;
  37
  38         unless ($thing->{Aranea}) {
  39                 if ($thing->{user}) {
  40                         $thing->{h} ||= $dxchan->here;
  41                 } else {
  42                         $thing->add_auth;
  43                         $thing->{sw} ||= 'DXSp';
  44                         $thing->{v} ||= $main::version;
  45                         $thing->{b} ||= $main::build;
  46                         $thing->{h} ||= $main::me->here;
  47                 }
  48
  49                 $thing->{Aranea} = Aranea::genmsg($thing, [qw(sw h v b s auth)]);
  50         }
  51         return $thing->{Aranea};
  52 }
  53
  54 sub handle
  55 {
  56         my $thing = shift;
  57         my $dxchan = shift;
  58
  59         my $origin = $thing->{origin};
  60         my $node = $dxchan->{call};
  61
  62         my $nref;
  63
  64         $thing->{pc19n} ||= [];
  65
  66         # verify authenticity
  67         if ($node eq $origin) {
  68
  69                 # for directly connected calls
  70                 if ($verify_on_login && !$thing->{user}) {
  71                         my $pp = $dxchan->user->passphrase;
  72                         unless ($pp) {
  73                                 dbglog('err', "Thingy::Hello::handle: verify on and $origin has no passphrase");
  74                                 $dxchan->disconnect;
  75                                 return;
  76                         }
  77                         my $auth = Verify->new("DXSp,$origin,$thing->{s},$thing->{v},$thing->{b}");
  78                         unless ($auth->verify($thing->{auth}, $dxchan->user->passphrase)) {
  79                                 dbglog('err', "Thingy::Hello::handle: verify on and $origin failed auth check");
  80                                 $dxchan->disconnect;
  81                                 return;
  82                         }
  83                 }
  84                 if ($dxchan->{state} ne 'normal') {
  85                         $nref = $main::routeroot->add($origin, $thing->{v}, $thing->{h});
  86                         push @{$thing->{pc19n}}, $nref if $nref;
  87                         $dxchan->start($dxchan->{conn}->{csort}, $dxchan->{conn}->{outbound} ? 'O' : 'A');
  88                         if ($dxchan->{outbound}) {
  89                                 my $thing = Thingy::Hello->new();
  90                                 $thing->send($dxchan);
  91
  92                                 # broadcast our configuration to the world
  93                                 $thing = Thingy::Rt->new_lcf;
  94                                 $thing->broadcast;
  95                         }
  96                 }
  97                 $nref = Route::Node::get($origin);
  98                 $nref->np(1);
  99         } else {
 100
 101                 # for otherwise connected calls, that come in relayed from other nodes
 102                 # note that we cannot do any connections at this point
 103                 $nref = Route::Node::get($origin);
 104                 unless ($nref) {
 105                         my $v = $thing->{user} ? undef : $thing->{v};
 106                         $nref = Route::Node->new($origin, $v, 1);
 107                         push @{$thing->{pc19n}}, $nref;
 108                         $nref->np(1);
 109                 }
 110         }
 111
 112         # handle "User"
 113         if (my $user = $thing->{user}) {
 114                 my $ur = Route::get($user);
 115                 unless ($ur) {
 116                         my $uref = DXUser->get_current($user);
 117                         if ($uref->is_node || $uref->is_aranea) {
 118                             $ur = $nref->add($user, $thing->{v}, $thing->{h});
 119                                 push @{$thing->{pc19n}}, $ur if $ur;
 120                         } else {
 121                                 $thing->{pc16n} = $nref;
 122                                 $thing->{pc16u} = [$ur = $nref->add_user($user, $thing->{h})];
 123                         }
 124                 }
 125                 $ur->np(1);
 126         } else {
 127                 $nref->version($thing->{v}) unless $nref->version;
 128                 $nref->build($thing->{b}) unless $nref->build;
 129                 $nref->sw($thing->{sw}) unless $nref->sw;
 130                 $nref->here($thing->{h}) if exists $thing->{h};
 131         }
 132
 133         RouteDB::update($origin, $node, $thing->{hopsaway});
 134         RouteDB::update($thing->{user}, $node, $thing->{hopsaway}) if $thing->{user};
 135
 136         delete $thing->{pc19n} unless @{$thing->{pc19n}};
 137
 138         $thing->broadcast($dxchan);
 139 }
 140
 141 1;