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 $thing = shift;
  36         unless ($thing->{Aranea}) {
  37                 $thing->add_auth;
  38
  39                 $thing->{sw} ||= 'DXSp';
  40                 $thing->{v} ||= $main::version;
  41                 $thing->{b} ||= $main::build;
  42
  43                 $thing->{Aranea} = Aranea::genmsg($thing, [qw(sw v b s auth)]);
  44         }
  45         return $thing->{Aranea};
  46 }
  47
  48 sub handle
  49 {
  50         my $thing = shift;
  51         my $dxchan = shift;
  52
  53         my $nref;
  54         $thing->{pc19n} ||= [];
  55
  56         # verify authenticity
  57         if ($dxchan->{call} eq $thing->{origin}) {
  58
  59                 # for directly connected calls
  60                 if ($verify_on_login) {
  61                         my $pp = $dxchan->user->passphrase;
  62                         unless ($pp) {
  63                                 dbglog('err', "Thingy::Hello::handle: verify on and $thing->{origin} has no passphrase");
  64                                 $dxchan->disconnect;
  65                                 return;
  66                         }
  67                         my $auth = Verify->new("DXSp,$thing->{origin},$thing->{s},$thing->{v},$thing->{b}");
  68                         unless ($auth->verify($thing->{auth}, $dxchan->user->passphrase)) {
  69                                 dbglog('err', "Thingy::Hello::handle: verify on and $thing->{origin} failed auth check");
  70                                 $dxchan->disconnect;
  71                                 return;
  72                         }
  73                 }
  74                 if ($dxchan->{state} ne 'normal') {
  75                         $dxchan->start($dxchan->{conn}->{csort}, $dxchan->{conn}->{outbound} ? 'O' : 'A');
  76                         if ($dxchan->{outbound}) {
  77                                 my $thing = Thingy::Hello->new();
  78                                 $thing->send($dxchan);
  79
  80                                 # broadcast our configuration to the world
  81                                 $thing = Thingy::Rt->new_lcf;
  82                                 $thing->broadcast;
  83                         }
  84                 }
  85                 my $origin = $thing->{origin};
  86                 $nref = $main::routeroot->add($origin, $thing->{v}, 1);
  87                 push @{$thing->{pc19n}}, $nref if $nref;
  88         } else {
  89
  90                 # for otherwise connected calls, that come in relayed from other nodes
  91                 # note that we cannot do any connections at this point
  92                 $nref = Route::Node::get($thing->{origin});
  93                 unless ($nref) {
  94                         my $v = $thing->{user} ? undef : $thing->{v};
  95                         $nref = Route::Node->new($thing->{origin}, $v, 1);
  96                         push @{$thing->{pc19n}}, $nref;
  97                 }
  98         }
  99
 100         # handle "User"
 101         if (my $user = $thing->{user}) {
 102                 my $ur = Route::get($user);
 103                 unless ($ur) {
 104                         my $uref = DXUser->get_current($user);
 105                         if ($uref->is_node || $uref->is_aranea) {
 106                                 my $u = $nref->add($user, $thing->{v}, 1);
 107                                 push @{$thing->{pc19n}}, $u if $u;
 108                         } else {
 109                                 $thing->{pc16n} = $nref;
 110                                 $thing->{pc16u} = [$nref->add_user($user, 1)];
 111                         }
 112                 }
 113         }
 114         RouteDB::update($thing->{origin}, $dxchan->{call}, $thing->{hopsaway});
 115         RouteDB::update($thing->{user}, $dxchan->{call}, $thing->{hopsaway}) if $thing->{user};
 116
 117         delete $thing->{pc19n} unless @{$thing->{pc19n}};
 118
 119         $thing->broadcast($dxchan);
 120 }
 121
 122 1;