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 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
  26 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /^\d+\.\d+(?:\.(\d+)\.(\d+))?$/  || (0,0));
  27 $main::build += $VERSION;
  28 $main::branch += $BRANCH;
  29
  30 use vars qw(@ISA $deftimeout);
  31
  32 @ISA = qw(ExtMsg Msg);
  33 $deftimeout = 60;
  34
  35 sub enqueue
  36 {
  37         my ($conn, $msg) = @_;
  38         push (@{$conn->{outqueue}}, $msg . $conn->{lineend});
  39 }
  40
  41 sub dequeue
  42 {
  43         my $conn = shift;
  44         my $msg;
  45
  46         if ($conn->{csort} eq 'ax25' && exists $conn->{msg}) {
  47                 $conn->{msg} =~ s/\cM/\cJ/g;
  48         }
  49         if ($conn->{state} eq 'WC' ) {
  50                 if (exists $conn->{cmd}) {
  51                         if (@{$conn->{cmd}}) {
  52                                 dbg("connect $conn->{cnum}: $conn->{msg}") if isdbg('connect');
  53                                 $conn->_docmd($conn->{msg});
  54                         }
  55                 }
  56                 if ($conn->{state} eq 'WC' && exists $conn->{cmd} && @{$conn->{cmd}} == 0) {
  57                         $conn->{state} = 'WH';
  58                 }
  59         } elsif ($conn->{msg} =~ /\cJ/) {
  60                 my @lines =  $conn->{msg} =~ /([^\cM\cJ]*)\cM?\cJ/g;
  61                 if ($conn->{msg} =~ /\cJ$/) {
  62                         delete $conn->{msg};
  63                 } else {
  64                         $conn->{msg} =~ s/([^\cM\cJ]*)\cM?\cJ//g;
  65                 }
  66                 while (defined ($msg = shift @lines)) {
  67                         dbg("connect $conn->{cnum}: $msg") if $conn->{state} ne 'C' && isdbg('connect');
  68                         if ($conn->{state} eq 'C') {
  69                                 &{$conn->{rproc}}($conn, $msg);
  70                         } elsif ($conn->{state} eq 'WH' ) {
  71                                 # this is the first stage that we have a callsign
  72                                 # do we have a hello?
  73                                 $msg =~ s/[\r\n]+$//;
  74                                 if ($msg =~ m{RT,[0-9A-F,]+|HELLO}) {
  75                                         # a possibly valid HELLO line, process it
  76                                         $conn->new_channel($msg);
  77                                 }
  78                         } elsif ($conn->{state} eq 'WC') {
  79                                 if (exists $conn->{cmd} && @{$conn->{cmd}}) {
  80                                         $conn->_docmd($msg);
  81                                         if ($conn->{state} eq 'WC' && exists $conn->{cmd} &&  @{$conn->{cmd}} == 0) {
  82                                                 $conn->{state} = 'WH';
  83                                         }
  84                                 }
  85                         }
  86                 }
  87         }
  88 }
  89
  90 sub login
  91 {
  92         return \&new_channel;
  93 }
  94
  95 sub new_client {
  96         my $server_conn = shift;
  97     my $sock = $server_conn->{sock}->accept();
  98         if ($sock) {
  99                 my $conn = $server_conn->new($server_conn->{rproc});
 100                 $conn->{sock} = $sock;
 101                 $conn->nolinger;
 102                 Msg::blocking($sock, 0);
 103                 $conn->{blocking} = 0;
 104                 eval {$conn->{peerhost} = $sock->peerhost};
 105                 if ($@) {
 106                         dbg($@) if isdbg('connll');
 107                         $conn->disconnect;
 108                 } else {
 109                         eval {$conn->{peerport} = $sock->peerport};
 110                         $conn->{peerport} = 0 if $@;
 111                         my ($rproc, $eproc) = &{$server_conn->{rproc}} ($conn, $conn->{peerhost}, $conn->{peerport});
 112                         dbg("accept $conn->{cnum} from $conn->{peerhost} $conn->{peerport}") if isdbg('connll');
 113                         if ($eproc) {
 114                                 $conn->{eproc} = $eproc;
 115                                 Msg::set_event_handler ($sock, "error" => $eproc);
 116                         }
 117                         if ($rproc) {
 118                                 $conn->{rproc} = $rproc;
 119                                 my $callback = sub {$conn->_rcv};
 120                                 Msg::set_event_handler ($sock, "read" => $callback);
 121                                 $conn->_dotimeout(60);
 122                                 $conn->{echo} = 0;
 123                         } else {
 124                                 &{$conn->{eproc}}() if $conn->{eproc};
 125                                 $conn->disconnect();
 126                         }
 127                         Log('Aranea', "Incoming connection from $conn->{peerhost}");
 128                         $conn->{outbound} = 0;
 129                         $conn->{state} = 'WH';          # wait for return authorize
 130                         my $thing = $conn->{lastthing} = Thingy::Hello->new();
 131
 132                         $thing->send($conn, 'Aranea');
 133                         dbg("-> D $conn->{peerhost} $thing->{Aranea}") if isdbg('chan');
 134                 }
 135         } else {
 136                 dbg("ExtMsg: error on accept ($!)") if isdbg('err');
 137         }
 138 }
 139
 140 sub set_newchannel_rproc
 141 {
 142         my $conn = shift;
 143         $conn->{rproc} = \&new_channel;
 144         $conn->{state} = 'WH';
 145 }
 146
 147 #
 148 # happens next on receive
 149 #
 150
 151 sub new_channel
 152 {
 153         my ($conn, $msg) = @_;
 154         my $call = $conn->{call} || $conn->{peerhost};
 155
 156         dbg("<- I $call $msg") if isdbg('chan');
 157
 158         my $thing = Aranea::input($msg);
 159         unless ($thing) {
 160                 dbg("Invalid thingy: $msg from $conn->{peerhost}");
 161                 $conn->send_now("Sorry");
 162                 $conn->disconnect;
 163                 return;
 164         }
 165
 166         $call = $thing->{origin};
 167         unless (is_callsign($call)) {
 168                 main::already_conn($conn, $call, DXM::msg($main::lang, "illcall", $call));
 169                 return;
 170         }
 171
 172         # set up the basic channel info
 173         # is there one already connected to me - locally?
 174         my $user = DXUser->get_current($call);
 175         my $dxchan = DXChannel->get($call);
 176         if ($dxchan) {
 177                 if ($main::bumpexisting && $call ne $main::mycall) {
 178                         my $ip = $conn->{peerhost} || 'unknown';
 179                         $dxchan->send_now('D', DXM::msg($main::lang, 'conbump', $call, $ip));
 180                         Log('DXCommand', "$call bumped off by $ip, disconnected");
 181                         dbg("$call bumped off by $ip, disconnected");
 182                         $dxchan->disconnect;
 183                 } else {
 184                         main::already_conn($conn, $call, DXM::msg($main::lang, 'conother', $call, $main::mycall));
 185                         return;
 186                 }
 187         }
 188
 189         # is he locked out ?
 190         my $basecall = $call;
 191         $basecall =~ s/-\d+$//;
 192         my $baseuser = DXUser->get_current($basecall);
 193         my $lock = $user->lockout if $user;
 194         if ($baseuser && $baseuser->lockout || $lock) {
 195                 if (!$user || !defined $lock || $lock) {
 196                         my $host = $conn->{peerhost} || "unknown";
 197                         Log('DXCommand', "$call on $host is locked out, disconnected");
 198                         $conn->disconnect;
 199                         return;
 200                 }
 201         }
 202
 203         if ($user) {
 204                 $user->{lang} = $main::lang if !$user->{lang}; # to autoupdate old systems
 205         } else {
 206                 $user = DXUser->new($call);
 207         }
 208
 209         # create the channel
 210         $dxchan = Aranea->new($call, $conn, $user);
 211
 212         # check that the conn has a callsign
 213         $conn->conns($call);
 214
 215         # set callbacks
 216         $conn->set_error(sub {main::error_handler($dxchan)});
 217         $conn->set_rproc(sub {my ($conn,$msg) = @_; $dxchan->rec($msg)});
 218         $conn->{state} = 'C';
 219         delete $conn->{cmd};
 220         $conn->{timeout}->del if $conn->{timeout};
 221         delete $conn->{timeout};
 222         $conn->nolinger;
 223         $thing->handle($dxchan);
 224 }
 225
 226 sub send
 227 {
 228         my $conn = shift;
 229         for (@_) {
 230                 $conn->send_later($_);
 231         }
 232 }