perl/DXProt.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the protocal mode for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 # $Id$
   8 #
   9
  10 package DXProt;
  11
  12 @ISA = qw(DXChannel);
  13
  14 use DXUtil;
  15 use DXChannel;
  16 use DXUser;
  17 use DXM;
  18 use DXCluster;
  19 use DXProtVars;
  20 use DXCommandmode;
  21 use DXLog;
  22 use Spot;
  23 use DXProtout;
  24 use DXDebug;
  25 use Filter;
  26 use Local;
  27 use DXDb;
  28 use AnnTalk;
  29 use Geomag;
  30 use WCY;
  31 use Time::HiRes qw(gettimeofday tv_interval);
  32
  33 use strict;
  34 use vars qw($me $pc11_max_age $pc23_max_age
  35                         $last_hour %pings %rcmds
  36                         %nodehops @baddx $baddxfn
  37                         $allowzero $decode_dk0wcy $send_opernam);
  38
  39 $me = undef;                                    # the channel id for this cluster
  40 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  41 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  42
  43 $last_hour = time;                              # last time I did an hourly periodic update
  44 %pings = ();                    # outstanding ping requests outbound
  45 %rcmds = ();                    # outstanding rcmd requests outbound
  46 %nodehops = ();                 # node specific hop control
  47 @baddx = ();                    # list of illegal spotted callsigns
  48
  49
  50 $baddxfn = "$main::data/baddx.pl";
  51
  52 sub init
  53 {
  54         my $user = DXUser->get($main::mycall);
  55         $DXProt::myprot_version += $main::version*100;
  56         $me = DXProt->new($main::mycall, 0, $user);
  57         $me->{here} = 1;
  58         $me->{state} = "indifferent";
  59         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
  60         confess $@ if $@;
  61         #  $me->{sort} = 'M';    # M for me
  62
  63         # now prime the spot and wwv  duplicates file with data
  64     my @today = Julian::unixtoj(time);
  65         for (Spot::readfile(@today), Spot::readfile(Julian::sub(@today, 1))) {
  66                 Spot::dup(@{$_}[0..3]);
  67         }
  68         for (Geomag::readfile(time)) {
  69                 Geomag::dup(@{$_}[1..5]);
  70         }
  71
  72         # load the baddx file
  73         do "$baddxfn" if -e "$baddxfn";
  74         print "$@\n" if $@;
  75 }
  76
  77 #
  78 # obtain a new connection this is derived from dxchannel
  79 #
  80
  81 sub new
  82 {
  83         my $self = DXChannel::alloc(@_);
  84         return $self;
  85 }
  86
  87 # this is how a pc connection starts (for an incoming connection)
  88 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
  89 # all the crap that comes between).
  90 sub start
  91 {
  92         my ($self, $line, $sort) = @_;
  93         my $call = $self->{call};
  94         my $user = $self->{user};
  95
  96         # remember type of connection
  97         $self->{consort} = $line;
  98         $self->{outbound} = $sort eq 'O';
  99         $self->{priv} = $user->priv;
 100         $self->{lang} = $user->lang;
 101         $self->{isolate} = $user->{isolate};
 102         $self->{consort} = $line;       # save the connection type
 103         $self->{here} = 1;
 104
 105         # get the INPUT filters (these only pertain to Clusters)
 106         $self->{inspotfilter} = Filter::read_in('spots', $call, 1);
 107         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1);
 108         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1);
 109         $self->{inannfilter} = Filter::read_in('ann', $call, 1);
 110
 111         # set unbuffered and no echo
 112         $self->send_now('B',"0");
 113         $self->send_now('E',"0");
 114
 115         # ping neighbour node stuff
 116         my $ping = $user->pingint;
 117         $ping = 5*60 unless defined $ping;
 118         $self->{pingint} = $ping;
 119         $self->{nopings} = $user->nopings || 2;
 120         $self->{pingtime} = [ ];
 121         $self->{pingave} = 0;
 122
 123         # send initialisation string
 124         unless ($self->{outbound}) {
 125                 $self->send(pc38()) if DXNode->get_all();
 126                 $self->send(pc18());
 127                 $self->{lastping} = $main::systime;
 128         } else {
 129                 # remove from outstanding connects queue
 130                 @main::outstanding_connects = grep {$_->{call} ne $call} @main::outstanding_connects;
 131                 $self->{lastping} = $main::systime + $self->pingint / 2;
 132         }
 133         $self->state('init');
 134         $self->pc50_t(time);
 135
 136         # send info to all logged in thingies
 137         $self->tell_login('loginn');
 138
 139         Log('DXProt', "$call connected");
 140 }
 141
 142 #
 143 # This is the normal pcxx despatcher
 144 #
 145 sub normal
 146 {
 147         my ($self, $line) = @_;
 148         my @field = split /\^/, $line;
 149         pop @field if $field[-1] eq '~';
 150
 151 #       print join(',', @field), "\n";
 152
 153         # ignore any lines that don't start with PC
 154         return if !$field[0] =~ /^PC/;
 155
 156         # process PC frames
 157         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 158         return unless $pcno;
 159         return if $pcno < 10 || $pcno > 99;
 160
 161         # dump bad protocol messages unless it is a PC29
 162         if ($line =~ /\%[0-9A-F][0-9A-F]/o && $pcno != 29) {
 163                 dbg('chan', "CORRUPT protocol message - dumped");
 164                 return;
 165         }
 166
 167         # local processing 1
 168         my $pcr;
 169         eval {
 170                 $pcr = Local::pcprot($self, $pcno, @field);
 171         };
 172 #       dbg('local', "Local::pcprot error $@") if $@;
 173         return if $pcr;
 174
 175  SWITCH: {
 176                 if ($pcno == 10) {              # incoming talk
 177
 178                         # is it for me or one of mine?
 179                         my $call = ($field[5] gt ' ') ? $field[5] : $field[2];
 180                         if ($call eq $main::mycall || grep $_ eq $call, DXChannel::get_all_user_calls()) {
 181
 182                                 # yes, it is
 183                                 my $text = unpad($field[3]);
 184                                 Log('talk', $call, $field[1], $field[6], $text);
 185                                 $call = $main::myalias if $call eq $main::mycall;
 186                                 my $ref = DXChannel->get($call);
 187                                 $ref->send("$call de $field[1]: $text") if $ref && $ref->{talk};
 188                         } else {
 189                                 $self->route($field[2], $line); # relay it on its way
 190                         }
 191                         return;
 192                 }
 193
 194                 if ($pcno == 11 || $pcno == 26) { # dx spot
 195
 196                         # route 'foreign' pc26s
 197                         if ($pcno == 26) {
 198                                 if ($field[7] ne $main::mycall) {
 199                                         $self->route($field[7], $line);
 200                                         return;
 201                                 }
 202                         }
 203
 204                         # if this is a 'nodx' node then ignore it
 205                         if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
 206                                 dbg('chan', "Bad DXNode, dropped");
 207                                 return;
 208                         }
 209
 210                         # convert the date to a unix date
 211                         my $d = cltounix($field[3], $field[4]);
 212                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 213                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 214                                 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 215                                 return;
 216                         }
 217
 218                         # is it 'baddx'
 219                         if (grep $field[2] eq $_, @baddx) {
 220                                 dbg('chan', "Bad DX spot, ignored");
 221                                 return;
 222                         }
 223
 224                         # are any of the crucial fields invalid?
 225             if ($field[2] =~ /(?:^\s*$|[a-z])/ || $field[6] =~ /(?:^\s*$|[a-z])/ || $field[7] =~ /(?:^\s*$|[a-z])/) {
 226                                 dbg('chan', "Spot contains lower case callsigns or blanks, rejected");
 227                                 return;
 228                         }
 229
 230                         # do some de-duping
 231                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 232                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 233                                 dbg('chan', "Duplicate Spot ignored\n");
 234                                 return;
 235                         }
 236
 237                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 238
 239             #
 240                         # @spot at this point contains:-
 241             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 242                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 243                         # you should be able to route on any of these
 244             #
 245
 246                         # fix up qra locators of known users
 247                         my $user = DXUser->get_current($spot[4]);
 248                         if ($user) {
 249                                 my $qra = $user->qra;
 250                                 unless ($qra && DXBearing::is_qra($qra)) {
 251                                         my $lat = $user->lat;
 252                                         my $long = $user->long;
 253                                         if (defined $lat && defined $long) {
 254                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 255                                                 $user->put;
 256                                         }
 257                                 }
 258
 259                                 # send a remote command to a distant cluster if it is visible and there is no
 260                                 # qra locator and we havn't done it for a month.
 261
 262                                 unless ($user->qra) {
 263                                         my $node;
 264                                         my $to = $user->homenode;
 265                                         my $last = $user->lastoper || 0;
 266                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 267                                                 my $cmd = "forward/opernam $spot[4]";
 268                                                 # send the rcmd but we aren't interested in the replies...
 269                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 270                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 271                                                 } else {
 272                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 273                                                 }
 274                                                 $user->lastoper($main::systime);
 275                                                 $user->put;
 276                                         }
 277                                 }
 278                         }
 279
 280                         # local processing
 281                         my $r;
 282                         eval {
 283                                 $r = Local::spot($self, @spot);
 284                         };
 285 #                       dbg('local', "Local::spot1 error $@") if $@;
 286                         return if $r;
 287
 288                         # DON'T be silly and send on PC26s!
 289                         return if $pcno == 26;
 290
 291                         # send out the filtered spots
 292                         send_dx_spot($self, $line, @spot) if @spot;
 293                         return;
 294                 }
 295
 296                 if ($pcno == 12) {              # announces
 297                         # announce duplicate checking
 298                         $field[3] =~ s/^\s+//;  # remove leading blanks
 299                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 300                                 dbg('chan', "Duplicate Announce ignored\n");
 301                                 return;
 302                         }
 303
 304                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 305
 306                                 # global ann filtering on INPUT
 307                                 if ($self->{inannfilter}) {
 308                                         my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
 309                                         unless ($filter) {
 310                                                 dbg('chan', "Rejected by filter");
 311                                                 return;
 312                                         }
 313                                 }
 314
 315                                 # send it
 316                                 $self->send_announce($line, @field[1..6]);
 317                         } else {
 318                                 $self->route($field[2], $line);
 319                         }
 320
 321                         return;
 322                 }
 323
 324                 if ($pcno == 13) {
 325                         last SWITCH;
 326                 }
 327                 if ($pcno == 14) {
 328                         last SWITCH;
 329                 }
 330                 if ($pcno == 15) {
 331                         last SWITCH;
 332                 }
 333
 334                 if ($pcno == 16) {              # add a user
 335                         my $node = DXCluster->get_exact($field[1]);
 336                         my $dxchan;
 337                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 338                                 # add it to the node table if it isn't present and it's
 339                                 # connected locally
 340                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 341                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 342
 343                         }
 344                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 345                         return unless $node->isa('DXNode');
 346                         if ($node->dxchan != $self) {
 347                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 348                                 return;
 349                         }
 350                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 351                                 dbg('chan', "LOOP: $field[1] connected locally");
 352                                 return;
 353                         }
 354                         my $i;
 355
 356                         for ($i = 2; $i < $#field; $i++) {
 357                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 358                                 next if !$call || length $call < 3 || length $call > 8;
 359                                 next if !$confmode;
 360                                 $call = uc $call;
 361                                 next if DXCluster->get_exact($call); # we already have this (loop?)
 362
 363                                 $confmode = $confmode eq '*';
 364                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 365
 366                                 # add this station to the user database, if required
 367                                 $call =~ s/-\d+$//o;        # remove ssid for users
 368                                 my $user = DXUser->get_current($call);
 369                                 $user = DXUser->new($call) if !$user;
 370                                 $user->homenode($node->call) if !$user->homenode;
 371                                 $user->node($node->call);
 372                                 $user->lastin($main::systime) unless DXChannel->get($call);
 373                                 $user->put;
 374                         }
 375
 376                         # queue up any messages (look for privates only)
 377                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 378                         last SWITCH;
 379                 }
 380
 381                 if ($pcno == 17) {              # remove a user
 382                         my $node = DXCluster->get_exact($field[2]);
 383                         my $dxchan;
 384                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 385                                 # add it to the node table if it isn't present and it's
 386                                 # connected locally
 387                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 388                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 389                                 return;
 390                         }
 391                         return unless $node;
 392                         return unless $node->isa('DXNode');
 393                         if ($node->dxchan != $self) {
 394                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 395                                 return;
 396                         }
 397                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 398                                 dbg('chan', "LOOP: $field[2] connected locally");
 399                                 return;
 400                         }
 401                         my $ref = DXCluster->get_exact($field[1]);
 402                         $ref->del() if $ref;
 403                         last SWITCH;
 404                 }
 405
 406                 if ($pcno == 18) {              # link request
 407                         $self->state('init');
 408
 409                         # first clear out any nodes on this dxchannel
 410                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 411                         foreach my $node (@gonenodes) {
 412                                 next if $node->dxchan == $DXProt::me;
 413                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 414                                 $node->del();
 415                         }
 416                         $self->send_local_config();
 417                         $self->send(pc20());
 418                         return;             # we don't pass these on
 419                 }
 420
 421                 if ($pcno == 19) {              # incoming cluster list
 422                         my $i;
 423                         my $newline = "PC19^";
 424                         for ($i = 1; $i < $#field-1; $i += 4) {
 425                                 my $here = $field[$i];
 426                                 my $call = uc $field[$i+1];
 427                                 my $confmode = $field[$i+2];
 428                                 my $ver = $field[$i+3];
 429
 430                                 $ver = 5400 if !$ver && $allowzero;
 431
 432                                 # now check the call over
 433                                 my $node = DXCluster->get_exact($call);
 434                                 if ($node) {
 435                                         my $dxchan;
 436                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 437                                                 dbg('chan', "LOOP: $call connected locally");
 438                                         }
 439                                     if ($node->dxchan != $self) {
 440                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 441                                                 next;
 442                                         }
 443                                         dbg('chan', "already have $call");
 444                                         next;
 445                                 }
 446
 447                                 # check for sane parameters
 448                                 next if $ver < 5000; # only works with version 5 software
 449                                 next if length $call < 3; # min 3 letter callsigns
 450
 451                                 # add it to the nodes table and outgoing line
 452                                 $newline .= "$here^$call^$confmode^$ver^";
 453                                 DXNode->new($self, $call, $confmode, $here, $ver);
 454
 455                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 456                                 my $mref = DXMsg::get_busy($call);
 457                                 $mref->stop_msg($call) if $mref;
 458
 459                                 # add this station to the user database, if required (don't remove SSID from nodes)
 460                                 my $user = DXUser->get_current($call);
 461                                 if (!$user) {
 462                                         $user = DXUser->new($call);
 463                                         $user->sort('A');
 464                                         $user->priv(1);                   # I have relented and defaulted nodes
 465                                         $self->{priv} = 1;                # to user RCMDs allowed
 466                                         $user->homenode($call);
 467                                         $user->node($call);
 468                                 }
 469                                 $user->lastin($main::systime) unless DXChannel->get($call);
 470                                 $user->put;
 471                         }
 472
 473                         return if $newline eq "PC19^";
 474
 475                         # add hop count
 476                         $newline .=  get_hops(19) . "^";
 477                         $line = $newline;
 478                         last SWITCH;
 479                 }
 480
 481                 if ($pcno == 20) {              # send local configuration
 482                         $self->send_local_config();
 483                         $self->send(pc22());
 484                         $self->state('normal');
 485                         return;
 486                 }
 487
 488                 if ($pcno == 21) {              # delete a cluster from the list
 489                         my $call = uc $field[1];
 490                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 491                                 my $node = DXCluster->get_exact($call);
 492                                 if ($node) {
 493                                         if ($node->dxchan != $self) {
 494                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 495                                                 return;
 496                                         }
 497                                         my $dxchan;
 498                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 499                                                 dbg('chan', "LOOP: $call connected locally");
 500                                                 return;
 501                                         }
 502                                         $node->del();
 503                                 } else {
 504                                         dbg('chan', "$call not in table, dropped");
 505                                         return;
 506                                 }
 507                         }
 508                         last SWITCH;
 509                 }
 510
 511                 if ($pcno == 22) {
 512                         $self->state('normal');
 513                         return;
 514                 }
 515
 516                 if ($pcno == 23 || $pcno == 27) { # WWV info
 517
 518                         # route 'foreign' pc27s
 519                         if ($pcno == 27) {
 520                                 if ($field[8] ne $main::mycall) {
 521                                         $self->route($field[8], $line);
 522                                         return;
 523                                 }
 524                         }
 525
 526                         # do some de-duping
 527                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 528                         my $sfi = unpad($field[3]);
 529                         my $k = unpad($field[4]);
 530                         my $i = unpad($field[5]);
 531                         my ($r) = $field[6] =~ /R=(\d+)/;
 532                         $r = 0 unless $r;
 533                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 534                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 535                                 return;
 536                         }
 537                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 538                                 dbg('chan', "Dup WWV Spot ignored\n");
 539                                 return;
 540                         }
 541                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 542
 543                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 544
 545                         my $rep;
 546                         eval {
 547                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 548                         };
 549 #                       dbg('local', "Local::wwv2 error $@") if $@;
 550                         return if $rep;
 551
 552                         # DON'T be silly and send on PC27s!
 553                         return if $pcno == 27;
 554
 555                         # broadcast to the eager world
 556                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 557                         return;
 558                 }
 559
 560                 if ($pcno == 24) {              # set here status
 561                         my $call = uc $field[1];
 562                         my $ref = DXCluster->get_exact($call);
 563                         $ref->here($field[2]) if $ref;
 564                         last SWITCH;
 565                 }
 566
 567                 if ($pcno == 25) {      # merge request
 568                         if ($field[1] ne $main::mycall) {
 569                                 $self->route($field[1], $line);
 570                                 return;
 571                         }
 572                         if ($field[2] eq $main::mycall) {
 573                                 dbg('chan', "Trying to merge to myself, ignored");
 574                                 return;
 575                         }
 576
 577                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 578
 579                         # spots
 580                         if ($field[3] > 0) {
 581                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 582                                 my $in;
 583                                 foreach $in (@in) {
 584                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 585                                 }
 586                         }
 587
 588                         # wwv
 589                         if ($field[4] > 0) {
 590                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 591                                 my $in;
 592                                 foreach $in (@in) {
 593                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 594                                 }
 595                         }
 596                         return;
 597                 }
 598
 599                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 600                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 601                                 DXMsg::process($self, $line);
 602                         } else {
 603                                 $self->route($field[1], $line);
 604                         }
 605                         return;
 606                 }
 607
 608                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 609                         if ($field[1] eq $main::mycall) {
 610                                 my $ref = DXUser->get_current($field[2]);
 611                                 my $cref = DXCluster->get($field[2]);
 612                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 613                                 unless ($field[3] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 614                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 615                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 616                                                 my $oldpriv = $self->{priv};
 617                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 618                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 619                                                 $self->{priv} = $oldpriv;
 620                                                 for (@in) {
 621                                                         s/\s*$//og;
 622                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 623                                                         Log('rcmd', 'out', $field[2], $_);
 624                                                 }
 625                                                 delete $self->{remotecmd};
 626                                         } else {
 627                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 628                                         }
 629                                 } else {
 630                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 631                                 }
 632                         } else {
 633                                 my $ref = DXUser->get_current($field[1]);
 634                                 if ($ref && $ref->is_clx) {
 635                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 636                                 } else {
 637                                         $self->route($field[1], $line);
 638                                 }
 639                         }
 640                         return;
 641                 }
 642
 643                 if ($pcno == 35) {              # remote command replies
 644                         if ($field[1] eq $main::mycall) {
 645                                 my $s = $rcmds{$field[2]};
 646                                 if ($s) {
 647                                         my $dxchan = DXChannel->get($s->{call});
 648                                         $dxchan->send($field[3]) if $dxchan;
 649                                         delete $rcmds{$field[2]} if !$dxchan;
 650                                 }
 651                         } else {
 652                                 my $ref = DXUser->get_current($field[1]);
 653                                 if ($ref && $ref->is_clx) {
 654                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 655                                 } else {
 656                                         $self->route($field[1], $line);
 657                                 }
 658                         }
 659                         return;
 660                 }
 661
 662                 # for pc 37 see 44 onwards
 663
 664                 if ($pcno == 38) {              # node connected list from neighbour
 665                         return;
 666                 }
 667
 668                 if ($pcno == 39) {              # incoming disconnect
 669                         $self->disconnect(1);
 670                         return;
 671                 }
 672
 673                 if ($pcno == 41) {              # user info
 674                         # add this station to the user database, if required
 675                         my $user = DXUser->get_current($field[1]);
 676                         if (!$user) {
 677                                 # then try without an SSID
 678                                 $field[1] =~ s/-\d+$//o;
 679                                 $user = DXUser->get_current($field[1]);
 680                         }
 681                         $user = DXUser->new($field[1]) if !$user;
 682
 683                         if ($field[2] == 1) {
 684                                 $user->name($field[3]);
 685                         } elsif ($field[2] == 2) {
 686                                 $user->qth($field[3]);
 687                         } elsif ($field[2] == 3) {
 688                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 689                                 $user->lat($lat);
 690                                 $user->long($long);
 691                                 my $qra = $user->qra || DXBearing::lltoqra($lat, $long);
 692                                 $qra = DXBearing::lltoqra($lat, $long) unless $qra && DXBearing::is_qra($qra);
 693                                 $user->qra($qra) if $qra ne $user->qra;
 694                         } elsif ($field[2] == 4) {
 695                                 $user->homenode($field[3]);
 696                         }
 697                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 698                         $user->put;
 699                         last SWITCH;
 700                 }
 701                 if ($pcno == 43) {
 702                         last SWITCH;
 703                 }
 704                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 705                         DXDb::process($self, $line);
 706                         return;
 707                 }
 708
 709                 if ($pcno == 50) {              # keep alive/user list
 710                         my $node = DXCluster->get_exact($field[1]);
 711                         if ($node) {
 712                                 return unless $node->isa('DXNode');
 713                                 return unless $node->dxchan == $self;
 714                                 $node->update_users($field[2]);
 715                         }
 716                         last SWITCH;
 717                 }
 718
 719                 if ($pcno == 51) {              # incoming ping requests/answers
 720
 721                         # is it for us?
 722                         if ($field[1] eq $main::mycall) {
 723                                 my $flag = $field[3];
 724                                 if ($flag == 1) {
 725                                         $self->send(pc51($field[2], $field[1], '0'));
 726                                 } else {
 727                                         # it's a reply, look in the ping list for this one
 728                                         my $ref = $pings{$field[2]};
 729                                         if ($ref) {
 730                                                 my $tochan =  DXChannel->get($field[2]);
 731                                                 while (@$ref) {
 732                                                         my $r = shift @$ref;
 733                                                         my $dxchan = DXChannel->get($r->{call});
 734                                                         next unless $dxchan;
 735                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 736                                                         if ($dxchan->is_user) {
 737                                                                 my $s = sprintf "%.2f", $t;
 738                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 739                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 740                                                         } elsif ($dxchan->is_node) {
 741                                                                 if ($tochan) {
 742                                                                         $tochan->{nopings} = 2; # pump up the timer
 743                                                                         push @{$tochan->{pingtime}}, $t;
 744                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 745                                                                         my $st;
 746                                                                         for (@{$tochan->{pingtime}}) {
 747                                                                                 $st += $_;
 748                                                                         }
 749                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 750                                                                 }
 751                                                         }
 752                                                 }
 753                                         }
 754                                 }
 755                         } else {
 756                                 # route down an appropriate thingy
 757                                 $self->route($field[1], $line);
 758                         }
 759                         return;
 760                 }
 761
 762                 if ($pcno == 73) {  # WCY broadcasts
 763
 764                         # do some de-duping
 765                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 766                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 767                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 768                                 return;
 769                         }
 770                         @field = map { unpad($_) } @field;
 771                         if (WCY::dup($d,@field[3..7])) {
 772                                 dbg('chan', "Dup WCY Spot ignored\n");
 773                                 return;
 774                         }
 775
 776                         my $wcy = WCY::update($d, @field[2..12]);
 777
 778                         my $rep;
 779                         eval {
 780                                 $rep = Local::wwv($self, @field[1..12]);
 781                         };
 782                         # dbg('local', "Local::wcy error $@") if $@;
 783                         return if $rep;
 784
 785                         # broadcast to the eager world
 786                         send_wcy_spot($self, $line, $d, @field[2..12]);
 787                         return;
 788                 }
 789
 790                 if ($pcno == 84) { # remote commands (incoming)
 791                         if ($field[1] eq $main::mycall) {
 792                                 my $ref = DXUser->get_current($field[2]);
 793                                 my $cref = DXCluster->get($field[2]);
 794                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 795                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 796                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 797                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 798                                                 my $oldpriv = $self->{priv};
 799                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 800                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 801                                                 $self->{priv} = $oldpriv;
 802                                                 for (@in) {
 803                                                         s/\s*$//og;
 804                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
 805                                                         Log('rcmd', 'out', $field[2], $_);
 806                                                 }
 807                                                 delete $self->{remotecmd};
 808                                         } else {
 809                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
 810                                         }
 811                                 } else {
 812                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
 813                                 }
 814                         } else {
 815                                 my $ref = DXUser->get_current($field[1]);
 816                                 if ($ref && $ref->is_clx) {
 817                                         $self->route($field[1], $line);
 818                                 } else {
 819                                         route($field[1], pc34($field[2], $field[1], $field[4]));
 820                                 }
 821                         }
 822                         return;
 823                 }
 824
 825                 if ($pcno == 85) {              # remote command replies
 826                         if ($field[1] eq $main::mycall) {
 827                                 my $dxchan = DXChannel->get($field[3]);
 828                                 if ($dxchan) {
 829                                         $dxchan->send($field[4]);
 830                                 } else {
 831                                         my $s = $rcmds{$field[2]};
 832                                         if ($s) {
 833                                                 $dxchan = DXChannel->get($s->{call});
 834                                                 $dxchan->send($field[4]) if $dxchan;
 835                                                 delete $rcmds{$field[2]} if !$dxchan;
 836                                         }
 837                                 }
 838                         } else {
 839                                 my $ref = DXUser->get_current($field[1]);
 840                                 if ($ref && $ref->is_clx) {
 841                                         $self->route($field[1], $line);
 842                                 } else {
 843                                         route($field[1], pc35($field[2], $field[1], $field[4]));
 844                                 }
 845                         }
 846                         return;
 847                 }
 848         }
 849
 850         # if get here then rebroadcast the thing with its Hop count decremented (if
 851         # there is one). If it has a hop count and it decrements to zero then don't
 852         # rebroadcast it.
 853         #
 854         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
 855         #        REBROADCAST!!!!
 856         #
 857
 858         unless ($self->{isolate}) {
 859                 broadcast_ak1a($line, $self); # send it to everyone but me
 860         }
 861 }
 862
 863 #
 864 # This is called from inside the main cluster processing loop and is used
 865 # for despatching commands that are doing some long processing job
 866 #
 867 sub process
 868 {
 869         my $t = time;
 870         my @dxchan = DXChannel->get_all();
 871         my $dxchan;
 872
 873         foreach $dxchan (@dxchan) {
 874                 next unless $dxchan->is_node();
 875                 next if $dxchan == $me;
 876
 877                 # send a pc50 out on this channel
 878                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
 879                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
 880                         $dxchan->pc50_t($t);
 881                 }
 882
 883                 # send a ping out on this channel
 884                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
 885                         if ($dxchan->{nopings} <= 0) {
 886                                 $dxchan->disconnect;
 887                         } else {
 888                                 addping($main::mycall, $dxchan->call);
 889                                 $dxchan->{nopings} -= 1;
 890                                 $dxchan->{lastping} = $t;
 891                         }
 892                 }
 893         }
 894
 895         my $key;
 896         my $val;
 897         my $cutoff;
 898         if ($main::systime - 3600 > $last_hour) {
 899                 Spot::process;
 900                 Geomag::process;
 901                 AnnTalk::process;
 902                 $last_hour = $main::systime;
 903         }
 904 }
 905
 906 #
 907 # finish up a pc context
 908 #
 909 sub finish
 910 {
 911         my $self = shift;
 912         my $call = $self->call;
 913         my $conn = shift;
 914         my $ref = DXCluster->get_exact($call);
 915
 916         # unbusy and stop and outgoing mail
 917         my $mref = DXMsg::get_busy($call);
 918         $mref->stop_msg($call) if $mref;
 919
 920         # broadcast to all other nodes that all the nodes connected to via me are gone
 921         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 922         my $node;
 923
 924         foreach $node (@gonenodes) {
 925                 next if $node->call eq $call;
 926                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
 927                 $node->del();
 928         }
 929
 930         # remove outstanding pings
 931         delete $pings{$call};
 932
 933         # now broadcast to all other ak1a nodes that I have gone
 934         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
 935
 936         # I was the last node visited
 937     $self->user->node($main::mycall);
 938
 939         # send info to all logged in thingies
 940         $self->tell_login('logoutn');
 941
 942         Log('DXProt', $call . " Disconnected");
 943         $ref->del() if $ref;
 944 }
 945
 946 #
 947 # some active measures
 948 #
 949 sub send_dx_spot
 950 {
 951         my $self = shift;
 952         my $line = shift;
 953         my @dxchan = DXChannel->get_all();
 954         my $dxchan;
 955
 956         # send it if it isn't the except list and isn't isolated and still has a hop count
 957         # taking into account filtering and so on
 958         foreach $dxchan (@dxchan) {
 959                 my $routeit;
 960                 my ($filter, $hops);
 961
 962                 if ($dxchan->{spotfilter}) {
 963                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
 964                         next unless $filter;
 965                 }
 966
 967                 if ($dxchan->is_node) {
 968                         next if $dxchan == $self;
 969                         if ($hops) {
 970                                 $routeit = $line;
 971                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 972                         } else {
 973                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 974                                 next unless $routeit;
 975                         }
 976                         if ($filter) {
 977                                 $dxchan->send($routeit) if $routeit;
 978                         } else {
 979                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 980                         }
 981                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
 982                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
 983                         $buf .= "\a\a" if $dxchan->{beep};
 984                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
 985                                 $dxchan->send($buf);
 986                         } else {
 987                                 $dxchan->delay($buf);
 988                         }
 989                 }
 990         }
 991 }
 992
 993 sub send_wwv_spot
 994 {
 995         my $self = shift;
 996         my $line = shift;
 997         my @dxchan = DXChannel->get_all();
 998         my $dxchan;
 999
1000         # send it if it isn't the except list and isn't isolated and still has a hop count
1001         # taking into account filtering and so on
1002         foreach $dxchan (@dxchan) {
1003                 my $routeit;
1004                 my ($filter, $hops);
1005
1006                 if ($dxchan->{wwvfilter}) {
1007                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
1008                          next unless $filter;
1009                 }
1010                 if ($dxchan->is_node) {
1011                         next if $dxchan == $self;
1012                         if ($hops) {
1013                                 $routeit = $line;
1014                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1015                         } else {
1016                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1017                                 next unless $routeit;
1018                         }
1019                         if ($filter) {
1020                                 $dxchan->send($routeit) if $routeit;
1021                         } else {
1022                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1023
1024                         }
1025                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1026                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1027                         $buf .= "\a\a" if $dxchan->{beep};
1028                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1029                                 $dxchan->send($buf);
1030                         } else {
1031                                 $dxchan->delay($buf);
1032                         }
1033                 }
1034         }
1035 }
1036
1037 sub send_wcy_spot
1038 {
1039         my $self = shift;
1040         my $line = shift;
1041         my @dxchan = DXChannel->get_all();
1042         my $dxchan;
1043
1044         # send it if it isn't the except list and isn't isolated and still has a hop count
1045         # taking into account filtering and so on
1046         foreach $dxchan (@dxchan) {
1047                 my $routeit;
1048                 my ($filter, $hops);
1049
1050                 if ($dxchan->{wcyfilter}) {
1051                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1052                          next unless $filter;
1053                 }
1054                 if ($dxchan->is_clx || $dxchan->is_spider) {
1055                         next if $dxchan == $self;
1056                         if ($hops) {
1057                                 $routeit = $line;
1058                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1059                         } else {
1060                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1061                                 next unless $routeit;
1062                         }
1063                         if ($filter) {
1064                                 $dxchan->send($routeit) if $routeit;
1065                         } else {
1066                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1067                         }
1068                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1069                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1070                         $buf .= "\a\a" if $dxchan->{beep};
1071                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1072                                 $dxchan->send($buf);
1073                         } else {
1074                                 $dxchan->delay($buf);
1075                         }
1076                 }
1077         }
1078 }
1079
1080 # send an announce
1081 sub send_announce
1082 {
1083         my $self = shift;
1084         my $line = shift;
1085         my @dxchan = DXChannel->get_all();
1086         my $dxchan;
1087         my $text = unpad($_[2]);
1088         my $target;
1089         my $to = 'To ';
1090
1091         if ($_[3] eq '*') {     # sysops
1092                 $target = "SYSOP";
1093         } elsif ($_[3] gt ' ') { # speciality list handling
1094                 my ($name) = split /\./, $_[3];
1095                 $target = "$name"; # put the rest in later (if bothered)
1096         }
1097
1098         if ($_[5] eq '1') {
1099                 $target = "WX";
1100                 $to = '';
1101         }
1102         $target = "All" if !$target;
1103
1104         Log('ann', $target, $_[0], $text);
1105
1106         # send it if it isn't the except list and isn't isolated and still has a hop count
1107         # taking into account filtering and so on
1108         foreach $dxchan (@dxchan) {
1109                 my $routeit;
1110                 my ($filter, $hops);
1111
1112                 if ($dxchan->{annfilter}) {
1113                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1114                         next unless $filter;
1115                 }
1116                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1117                         next if $dxchan == $self;
1118                         if ($hops) {
1119                                 $routeit = $line;
1120                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1121                         } else {
1122                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1123                                 next unless $routeit;
1124                         }
1125                         if ($filter) {
1126                                 $dxchan->send($routeit) if $routeit;
1127                         } else {
1128                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1129
1130                         }
1131                 } elsif ($dxchan->is_user && $dxchan->{ann}) {
1132                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1133                         my $buf = "$to$target de $_[0]: $text";
1134                         $buf .= "\a\a" if $dxchan->{beep};
1135                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1136                                 $dxchan->send($buf);
1137                         } else {
1138                                 $dxchan->delay($buf);
1139                         }
1140                 }
1141         }
1142 }
1143
1144 sub send_local_config
1145 {
1146         my $self = shift;
1147         my $n;
1148         my @nodes;
1149         my @localnodes;
1150         my @remotenodes;
1151
1152         # send our nodes
1153         if ($self->{isolate}) {
1154                 @localnodes = (DXCluster->get_exact($main::mycall));
1155         } else {
1156                 # create a list of all the nodes that are not connected to this connection
1157                 # and are not themselves isolated, this to make sure that isolated nodes
1158         # don't appear outside of this node
1159                 @nodes = DXNode::get_all();
1160                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1161                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1162                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1163                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1164                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1165                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1166         }
1167
1168         my @s = $me->pc19(@localnodes, @remotenodes);
1169         for (@s) {
1170                 my $routeit = adjust_hops($self, $_);
1171                 $self->send($routeit) if $routeit;
1172         }
1173
1174         # get all the users connected on the above nodes and send them out
1175         foreach $n (@localnodes, @remotenodes) {
1176                 my @users = values %{$n->list};
1177                 my @s = pc16($n, @users);
1178                 for (@s) {
1179                         my $routeit = adjust_hops($self, $_);
1180                         $self->send($routeit) if $routeit;
1181                 }
1182         }
1183 }
1184
1185 #
1186 # route a message down an appropriate interface for a callsign
1187 #
1188 # is called route(to, pcline);
1189 #
1190 sub route
1191 {
1192         my ($self, $call, $line) = @_;
1193         my $cl = DXCluster->get_exact($call);
1194         if ($cl) {       # don't route it back down itself
1195                 if (ref $self && $call eq $self->{call}) {
1196                         dbg('chan', "Trying to route back to source, dropped");
1197                         return;
1198                 }
1199                 my $hops;
1200                 my $dxchan = $cl->{dxchan};
1201                 if ($dxchan) {
1202                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1203                         if ($routeit) {
1204                                 $dxchan->send($routeit) if $dxchan;
1205                         }
1206                 }
1207         }
1208 }
1209
1210 # broadcast a message to all clusters taking into account isolation
1211 # [except those mentioned after buffer]
1212 sub broadcast_ak1a
1213 {
1214         my $s = shift;                          # the line to be rebroadcast
1215         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1216         my @dxchan = DXChannel::get_all_ak1a();
1217         my $dxchan;
1218
1219         # send it if it isn't the except list and isn't isolated and still has a hop count
1220         foreach $dxchan (@dxchan) {
1221                 next if grep $dxchan == $_, @except;
1222                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1223                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1224         }
1225 }
1226
1227 # broadcast a message to all clusters ignoring isolation
1228 # [except those mentioned after buffer]
1229 sub broadcast_all_ak1a
1230 {
1231         my $s = shift;                          # the line to be rebroadcast
1232         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1233         my @dxchan = DXChannel::get_all_ak1a();
1234         my $dxchan;
1235
1236         # send it if it isn't the except list and isn't isolated and still has a hop count
1237         foreach $dxchan (@dxchan) {
1238                 next if grep $dxchan == $_, @except;
1239                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1240                 $dxchan->send($routeit);
1241         }
1242 }
1243
1244 # broadcast to all users
1245 # storing the spot or whatever until it is in a state to receive it
1246 sub broadcast_users
1247 {
1248         my $s = shift;                          # the line to be rebroadcast
1249         my $sort = shift;           # the type of transmission
1250         my $fref = shift;           # a reference to an object to filter on
1251         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1252         my @dxchan = DXChannel::get_all_users();
1253         my $dxchan;
1254         my @out;
1255
1256         foreach $dxchan (@dxchan) {
1257                 next if grep $dxchan == $_, @except;
1258                 push @out, $dxchan;
1259         }
1260         broadcast_list($s, $sort, $fref, @out);
1261 }
1262
1263 # broadcast to a list of users
1264 sub broadcast_list
1265 {
1266         my $s = shift;
1267         my $sort = shift;
1268         my $fref = shift;
1269         my $dxchan;
1270
1271         foreach $dxchan (@_) {
1272                 my $filter = 1;
1273
1274                 if ($sort eq 'dx') {
1275                     next unless $dxchan->{dx};
1276                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1277                         next unless $filter;
1278                 }
1279                 next if $sort eq 'ann' && !$dxchan->{ann};
1280                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1281                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1282                 next if $sort eq 'wx' && !$dxchan->{wx};
1283
1284                 $s =~ s/\a//og unless $dxchan->{beep};
1285
1286                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'convers') {
1287                         $dxchan->send($s);
1288                 } else {
1289                         $dxchan->delay($s);
1290                 }
1291         }
1292 }
1293
1294
1295 #
1296 # obtain the hops from the list for this callsign and pc no
1297 #
1298
1299 sub get_hops
1300 {
1301         my $pcno = shift;
1302         my $hops = $DXProt::hopcount{$pcno};
1303         $hops = $DXProt::def_hopcount if !$hops;
1304         return "H$hops";
1305 }
1306
1307 #
1308 # adjust the hop count on a per node basis using the user loadable
1309 # hop table if available or else decrement an existing one
1310 #
1311
1312 sub adjust_hops
1313 {
1314         my $self = shift;
1315         my $s = shift;
1316         my $call = $self->{call};
1317         my $hops;
1318
1319         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1320                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1321                 confess "$call called adjust_hops with '$s'" unless $pcno;
1322                 my $ref = $nodehops{$call} if %nodehops;
1323                 if ($ref) {
1324                         my $newhops = $ref->{$pcno};
1325                         return "" if defined $newhops && $newhops == 0;
1326                         $newhops = $ref->{default} unless $newhops;
1327                         return "" if defined $newhops && $newhops == 0;
1328                         $newhops = $hops if !$newhops;
1329                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1330                 } else {
1331                         # simply decrement it
1332                         $hops--;
1333                         return "" if !$hops;
1334                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1335                 }
1336         }
1337         return $s;
1338 }
1339
1340 #
1341 # load hop tables
1342 #
1343 sub load_hops
1344 {
1345         my $self = shift;
1346         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1347         do "$main::data/hop_table.pl";
1348         return $@ if $@;
1349         return 0;
1350 }
1351
1352
1353 # add a ping request to the ping queues
1354 sub addping
1355 {
1356         my ($from, $to) = @_;
1357         my $ref = $pings{$to} || [];
1358         my $r = {};
1359         $r->{call} = $from;
1360         $r->{t} = [ gettimeofday ];
1361         route(undef, $to, pc51($to, $main::mycall, 1));
1362         push @$ref, $r;
1363         $pings{$to} = $ref;
1364 }
1365
1366 # add a rcmd request to the rcmd queues
1367 sub addrcmd
1368 {
1369         my ($self, $to, $cmd) = @_;
1370
1371         my $r = {};
1372         $r->{call} = $self->{call};
1373         $r->{t} = $main::systime;
1374         $r->{cmd} = $cmd;
1375         $rcmds{$to} = $r;
1376
1377         my $ref = DXCluster->get_exact($to);
1378     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1379                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1380         } else {
1381                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1382         }
1383 }
1384
1385 sub disconnect
1386 {
1387         my $self = shift;
1388         my $nopc39 = shift;
1389
1390         if ($self->{conn} && !$nopc39) {
1391                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1392         }
1393
1394         $self->SUPER::disconnect;
1395 }
1396 1;
1397 __END__