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->{sw} ||= 'DXSp';
  43                         $thing->{v} ||= $main::me->version;
  44                         $thing->{b} ||= $main::me->build;
  45                         $thing->{h} ||= $main::me->here;
  46                         $thing->add_auth;
  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         my $v = $thing->{v};
  67         if ($v) {
  68                 $v = $DXProt::myprot_version + int ($v*100) if $v > 2 && $v < 3;
  69                 $v = $DXProt::myprot_version + 150 unless $v >= 5400;
  70                 $thing->{pcv} = $v;
  71         }
  72
  73         # verify authenticity
  74         if ($node eq $origin) {
  75
  76                 # for directly connected calls
  77                 if ($verify_on_login && !$thing->{user}) {
  78                         my $pp = $dxchan->user->passphrase;
  79                         unless ($pp) {
  80                                 dbglog('err', "Thingy::Hello::handle: verify on and $origin has no passphrase");
  81                                 $dxchan->disconnect;
  82                                 return;
  83                         }
  84                         my $auth = Verify->new("DXSp,$origin,$thing->{s},$thing->{v},$thing->{b}");
  85                         unless ($auth->verify($thing->{auth}, $dxchan->user->passphrase)) {
  86                                 dbglog('err', "Thingy::Hello::handle: verify on and $origin failed auth check");
  87                                 $dxchan->disconnect;
  88                                 return;
  89                         }
  90                 }
  91                 if ($dxchan->{state} ne 'normal') {
  92                         $nref = $main::routeroot->add($origin, $thing->{pcv}, $thing->{h});
  93                         push @{$thing->{pc19n}}, $nref if $nref;
  94                         $dxchan->start($dxchan->{conn}->{csort}, $dxchan->{conn}->{outbound} ? 'O' : 'A');
  95                         if ($dxchan->{outbound}) {
  96                                 my $thing = Thingy::Hello->new();
  97                                 $thing->send($dxchan);
  98
  99                                 # broadcast our configuration to the world
 100                                 $thing = Thingy::Rt->new_cf;
 101                                 $thing->broadcast;
 102                         }
 103                 }
 104                 $nref = Route::Node::get($origin);
 105                 $nref->np(1);
 106         } else {
 107
 108                 # for otherwise connected calls, that come in relayed from other nodes
 109                 # note that we cannot do any connections at this point
 110                 $nref = Route::Node::get($origin);
 111                 unless ($nref) {
 112                         my $v = $thing->{user} ? undef : $thing->{pcv};
 113                         $nref = Route::Node->new($origin, $v, 1);
 114                         push @{$thing->{pc19n}}, $nref;
 115                         $nref->np(1);
 116                 }
 117         }
 118
 119         # handle "User"
 120         if (my $user = $thing->{user}) {
 121                 my $ur = Route::get($user);
 122                 unless ($ur) {
 123                         my @ref;
 124                         my $uref = DXUser->get_current($user) || Thingy::Rt::_upd_user_rec($user, $origin)->put;
 125                         if ($uref->is_node || $uref->is_aranea) {
 126                             push @ref, $nref->add($user, $thing->{pcv} || 0, $thing->{h} || 0);
 127                                 push @{$thing->{pc19n}}, @ref if @ref;
 128                                 do $_->np(1) for @ref;
 129                         } else {
 130                                 $thing->{pc16n} = $nref;
 131                                 push @ref, $nref->add_user($user, $thing->{h} || 0);
 132                                 $thing->{pc16u} = \@ref if @ref;
 133                         }
 134                 }
 135         } else {
 136                 $nref->version($v) unless $nref->version;
 137                 $nref->build($thing->{b}) unless $nref->build;
 138                 $nref->sw($thing->{sw}) unless $nref->sw;
 139                 $nref->here($thing->{h}) if exists $thing->{h};
 140         }
 141
 142         RouteDB::update($origin, $node, $thing->{hopsaway});
 143         RouteDB::update($thing->{user}, $node, $thing->{hopsaway}) if $thing->{user};
 144
 145         delete $thing->{pc19n} unless @{$thing->{pc19n}};
 146
 147         $thing->broadcast($dxchan);
 148 }
 149
 150 1;