perl/AMsg.pm

   1 #
   2 # This class implements the new style comms for Aranea
   3 # communications for Msg.pm
   4 #
   5 # $Id$
   6 #
   7 # Copyright (c) 2005 - Dirk Koopman G1TLH
   8 #
   9
  10 use strict;
  11
  12 package AMsg;
  13
  14 use Msg;
  15 use DXVars;
  16 use DXUtil;
  17 use DXDebug;
  18 use Aranea;
  19 use Verify;
  20 use DXLog;
  21 use Thingy;
  22 use Thingy::Hello;
  23
  24 use vars qw($VERSION $BRANCH);
  25
  26 main::mkver($VERSION = q$Revision$);
  27
  28 use vars qw(@ISA $deftimeout);
  29
  30 @ISA = qw(ExtMsg Msg);
  31 $deftimeout = 60;
  32
  33 sub enqueue
  34 {
  35         my ($conn, $msg) = @_;
  36         push (@{$conn->{outqueue}}, $msg . $conn->{lineend});
  37 }
  38
  39 sub dequeue
  40 {
  41         my $conn = shift;
  42         my $msg;
  43
  44         if ($conn->{csort} eq 'ax25' && exists $conn->{msg}) {
  45                 $conn->{msg} =~ s/\cM/\cJ/g;
  46         }
  47         if ($conn->{state} eq 'WC' ) {
  48                 if (exists $conn->{cmd}) {
  49                         if (@{$conn->{cmd}}) {
  50                                 dbg("connect $conn->{cnum}: $conn->{msg}") if isdbg('connect');
  51                                 $conn->_docmd($conn->{msg});
  52                         }
  53                 }
  54                 if ($conn->{state} eq 'WC' && exists $conn->{cmd} && @{$conn->{cmd}} == 0) {
  55                         $conn->{state} = 'WH';
  56                 }
  57         } elsif ($conn->{msg} =~ /\cJ/) {
  58                 my @lines =  $conn->{msg} =~ /([^\cM\cJ]*)\cM?\cJ/g;
  59                 if ($conn->{msg} =~ /\cJ$/) {
  60                         delete $conn->{msg};
  61                 } else {
  62                         $conn->{msg} =~ s/([^\cM\cJ]*)\cM?\cJ//g;
  63                 }
  64                 while (defined ($msg = shift @lines)) {
  65                         dbg("connect $conn->{cnum}: $msg") if $conn->{state} ne 'C' && isdbg('connect');
  66                         if ($conn->{state} eq 'C') {
  67                                 &{$conn->{rproc}}($conn, $msg);
  68                         } elsif ($conn->{state} eq 'WH' ) {
  69                                 # this is the first stage that we have a callsign
  70                                 # do we have a hello?
  71                                 $msg =~ s/[\r\n]+$//;
  72                                 if ($msg =~ m{|HELLO,}) {
  73                                         # a possibly valid HELLO line, process it
  74                                         $conn->new_channel($msg);
  75                                 }
  76                         } elsif ($conn->{state} eq 'WC') {
  77                                 if (exists $conn->{cmd} && @{$conn->{cmd}}) {
  78                                         $conn->_docmd($msg);
  79                                         if ($conn->{state} eq 'WC' && exists $conn->{cmd} &&  @{$conn->{cmd}} == 0) {
  80                                                 $conn->{state} = 'WH';
  81                                         }
  82                                 }
  83                         }
  84                 }
  85         }
  86 }
  87
  88 sub login
  89 {
  90         return \&new_channel;
  91 }
  92
  93 sub new_client {
  94         my $server_conn = shift;
  95     my $sock = $server_conn->{sock}->accept();
  96         if ($sock) {
  97                 my $conn = $server_conn->new($server_conn->{rproc});
  98                 $conn->{sock} = $sock;
  99                 $conn->nolinger;
 100                 Msg::blocking($sock, 0);
 101                 $conn->{blocking} = 0;
 102                 eval {$conn->{peerhost} = $sock->peerhost};
 103                 if ($@) {
 104                         dbg($@) if isdbg('connll');
 105                         $conn->disconnect;
 106                 } else {
 107                         eval {$conn->{peerport} = $sock->peerport};
 108                         $conn->{peerport} = 0 if $@;
 109                         my ($rproc, $eproc) = &{$server_conn->{rproc}} ($conn, $conn->{peerhost}, $conn->{peerport});
 110                         dbg("accept $conn->{cnum} from $conn->{peerhost} $conn->{peerport}") if isdbg('connll');
 111                         if ($eproc) {
 112                                 $conn->{eproc} = $eproc;
 113                                 Msg::set_event_handler ($sock, "error" => $eproc);
 114                         }
 115                         if ($rproc) {
 116                                 $conn->{rproc} = $rproc;
 117                                 my $callback = sub {$conn->_rcv};
 118                                 Msg::set_event_handler ($sock, "read" => $callback);
 119                                 $conn->_dotimeout(60);
 120                                 $conn->{echo} = 0;
 121                         } else {
 122                                 &{$conn->{eproc}}() if $conn->{eproc};
 123                                 $conn->disconnect();
 124                         }
 125                         Log('Aranea', "Incoming connection from $conn->{peerhost}");
 126                         $conn->{outbound} = 0;
 127                         $conn->{state} = 'WH';          # wait for return authorize
 128                         my $thing = $conn->{lastthing} = Thingy::Hello->new();
 129                         $thing->send($conn, 'Aranea');
 130                         dbg("-> D $conn->{peerhost} $thing->{Aranea}") if isdbg('chan');
 131                 }
 132         } else {
 133                 dbg("ExtMsg: error on accept ($!)") if isdbg('err');
 134         }
 135 }
 136
 137 sub set_newchannel_rproc
 138 {
 139         my $conn = shift;
 140         $conn->{rproc} = \&new_channel;
 141         $conn->{state} = 'WH';
 142 }
 143
 144 #
 145 # happens next on receive
 146 #
 147
 148 sub new_channel
 149 {
 150         my ($conn, $msg) = @_;
 151         my $call = $conn->{call} || $conn->{peerhost};
 152
 153         dbg("<- I $call $msg") if isdbg('chan');
 154
 155         my $thing = Aranea::input($msg);
 156         unless ($thing) {
 157                 dbg("Invalid thingy: $msg from $conn->{peerhost}");
 158                 $conn->send_now("Sorry");
 159                 $conn->disconnect;
 160                 return;
 161         }
 162
 163         $call = $thing->{origin};
 164         unless (is_callsign($call)) {
 165                 main::already_conn($conn, $call, DXM::msg($main::lang, "illcall", $call));
 166                 return;
 167         }
 168
 169         # set up the basic channel info
 170         # is there one already connected to me - locally?
 171         my $user = DXUser->get_current($call);
 172         my $dxchan = DXChannel::get($call);
 173         if ($dxchan) {
 174                 if ($main::bumpexisting && $call ne $main::mycall) {
 175                         my $ip = $conn->{peerhost} || 'unknown';
 176                         $dxchan->send_now('D', DXM::msg($main::lang, 'conbump', $call, $ip));
 177                         Log('DXCommand', "$call bumped off by $ip, disconnected");
 178                         dbg("$call bumped off by $ip, disconnected");
 179                         $dxchan->disconnect;
 180                 } else {
 181                         main::already_conn($conn, $call, DXM::msg($main::lang, 'conother', $call, $main::mycall));
 182                         return;
 183                 }
 184         }
 185
 186         # is he locked out ?
 187         my $basecall = $call;
 188         $basecall =~ s/-\d+$//;
 189         my $baseuser = DXUser->get_current($basecall);
 190         my $lock = $user->lockout if $user;
 191         if ($baseuser && $baseuser->lockout || $lock) {
 192                 if (!$user || !defined $lock || $lock) {
 193                         my $host = $conn->{peerhost} || "unknown";
 194                         Log('DXCommand', "$call on $host is locked out, disconnected");
 195                         $conn->disconnect;
 196                         return;
 197                 }
 198         }
 199
 200         if ($user) {
 201                 $user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
 202         } else {
 203                 $user = DXUser->new($call);
 204         }
 205
 206         # create the channel
 207         $dxchan = Aranea->new($call, $conn, $user);
 208
 209         # check that the conn has a callsign
 210         $conn->conns($call);
 211
 212         # set callbacks
 213         $conn->set_error(sub {main::error_handler($dxchan)});
 214         $conn->set_rproc(sub {my ($conn,$msg) = @_; $dxchan->rec($msg)});
 215         $conn->{state} = 'C';
 216         delete $conn->{cmd};
 217         $conn->{timeout}->del if $conn->{timeout};
 218         delete $conn->{timeout};
 219         $conn->nolinger;
 220         $thing->handle($dxchan);
 221 }
 222
 223 sub send
 224 {
 225         my $conn = shift;
 226         for (@_) {
 227                 $conn->send_later($_);
 228         }
 229 }