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 || 1;     # other clusters can always be 'normal' users
 100         $self->{lang} = $user->lang || 'en';
 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 $_, @baddx) {
 220                                 dbg('chan', "Bad DX spot, ignored");
 221                                 return;
 222                         }
 223
 224                         # are any of the callsign fields invalid?
 225             if ($field[2] =~ m/[^A-Z0-9\-\/]/ || $field[6] =~ m/[^A-Z0-9\-]/ || $field[7] =~ m/[^A-Z0-9\-]/) {
 226                                 dbg('chan', "Spot contains lower case callsigns or blanks, rejected");
 227                                 return;
 228                         }
 229             if ($field[1] =~ m/[^0-9\.]/) {
 230                                 dbg('chan', "Spot frequency not numeric, rejected");
 231                                 return;
 232                         }
 233
 234                         # do some de-duping
 235                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 236                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 237                                 dbg('chan', "Duplicate Spot ignored\n");
 238                                 return;
 239                         }
 240
 241                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 242
 243             #
 244                         # @spot at this point contains:-
 245             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 246                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 247                         # you should be able to route on any of these
 248             #
 249
 250                         # fix up qra locators of known users
 251                         my $user = DXUser->get_current($spot[4]);
 252                         if ($user) {
 253                                 my $qra = $user->qra;
 254                                 unless ($qra && DXBearing::is_qra($qra)) {
 255                                         my $lat = $user->lat;
 256                                         my $long = $user->long;
 257                                         if (defined $lat && defined $long) {
 258                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 259                                                 $user->put;
 260                                         }
 261                                 }
 262
 263                                 # send a remote command to a distant cluster if it is visible and there is no
 264                                 # qra locator and we havn't done it for a month.
 265
 266                                 unless ($user->qra) {
 267                                         my $node;
 268                                         my $to = $user->homenode;
 269                                         my $last = $user->lastoper || 0;
 270                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 271                                                 my $cmd = "forward/opernam $spot[4]";
 272                                                 # send the rcmd but we aren't interested in the replies...
 273                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 274                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 275                                                 } else {
 276                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 277                                                 }
 278                                                 if ($to ne $field[7]) {
 279                                                         $to = $field[7];
 280                                                         $node = DXCluster->get_exact($to);
 281                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 282                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 283                                                         } else {
 284                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 285                                                         }
 286                                                 }
 287                                                 $user->lastoper($main::systime);
 288                                                 $user->put;
 289                                         }
 290                                 }
 291                         }
 292
 293                         # local processing
 294                         my $r;
 295                         eval {
 296                                 $r = Local::spot($self, @spot);
 297                         };
 298 #                       dbg('local', "Local::spot1 error $@") if $@;
 299                         return if $r;
 300
 301                         # DON'T be silly and send on PC26s!
 302                         return if $pcno == 26;
 303
 304                         # send out the filtered spots
 305                         send_dx_spot($self, $line, @spot) if @spot;
 306                         return;
 307                 }
 308
 309                 if ($pcno == 12) {              # announces
 310                         # announce duplicate checking
 311                         $field[3] =~ s/^\s+//;  # remove leading blanks
 312                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 313                                 dbg('chan', "Duplicate Announce ignored\n");
 314                                 return;
 315                         }
 316
 317                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 318
 319                                 # global ann filtering on INPUT
 320                                 if ($self->{inannfilter}) {
 321                                         my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
 322                                         unless ($filter) {
 323                                                 dbg('chan', "Rejected by filter");
 324                                                 return;
 325                                         }
 326                                 }
 327
 328                                 # send it
 329                                 $self->send_announce($line, @field[1..6]);
 330                         } else {
 331                                 $self->route($field[2], $line);
 332                         }
 333
 334                         return;
 335                 }
 336
 337                 if ($pcno == 13) {
 338                         last SWITCH;
 339                 }
 340                 if ($pcno == 14) {
 341                         last SWITCH;
 342                 }
 343                 if ($pcno == 15) {
 344                         last SWITCH;
 345                 }
 346
 347                 if ($pcno == 16) {              # add a user
 348                         my $node = DXCluster->get_exact($field[1]);
 349                         my $dxchan;
 350                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 351                                 # add it to the node table if it isn't present and it's
 352                                 # connected locally
 353                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 354                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 355
 356                         }
 357                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 358                         return unless $node->isa('DXNode');
 359                         if ($node->dxchan != $self) {
 360                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 361                                 return;
 362                         }
 363                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 364                                 dbg('chan', "LOOP: $field[1] connected locally");
 365                                 return;
 366                         }
 367                         my $i;
 368
 369                         for ($i = 2; $i < $#field; $i++) {
 370                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 371                                 next if !$call || length $call < 3 || length $call > 8;
 372                                 next if !$confmode;
 373                                 $call = uc $call;
 374                                 next if DXCluster->get_exact($call); # we already have this (loop?)
 375
 376                                 $confmode = $confmode eq '*';
 377                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 378
 379                                 # add this station to the user database, if required
 380                                 $call =~ s/-\d+$//o;        # remove ssid for users
 381                                 my $user = DXUser->get_current($call);
 382                                 $user = DXUser->new($call) if !$user;
 383                                 $user->homenode($node->call) if !$user->homenode;
 384                                 $user->node($node->call);
 385                                 $user->lastin($main::systime) unless DXChannel->get($call);
 386                                 $user->put;
 387                         }
 388
 389                         # queue up any messages (look for privates only)
 390                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 391                         last SWITCH;
 392                 }
 393
 394                 if ($pcno == 17) {              # remove a user
 395                         my $node = DXCluster->get_exact($field[2]);
 396                         my $dxchan;
 397                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 398                                 # add it to the node table if it isn't present and it's
 399                                 # connected locally
 400                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 401                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 402                                 return;
 403                         }
 404                         return unless $node;
 405                         return unless $node->isa('DXNode');
 406                         if ($node->dxchan != $self) {
 407                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 408                                 return;
 409                         }
 410                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 411                                 dbg('chan', "LOOP: $field[2] connected locally");
 412                                 return;
 413                         }
 414                         my $ref = DXCluster->get_exact($field[1]);
 415                         $ref->del() if $ref;
 416                         last SWITCH;
 417                 }
 418
 419                 if ($pcno == 18) {              # link request
 420                         $self->state('init');
 421
 422                         # first clear out any nodes on this dxchannel
 423                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 424                         foreach my $node (@gonenodes) {
 425                                 next if $node->dxchan == $DXProt::me;
 426                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 427                                 $node->del();
 428                         }
 429                         $self->send_local_config();
 430                         $self->send(pc20());
 431                         return;             # we don't pass these on
 432                 }
 433
 434                 if ($pcno == 19) {              # incoming cluster list
 435                         my $i;
 436                         my $newline = "PC19^";
 437                         for ($i = 1; $i < $#field-1; $i += 4) {
 438                                 my $here = $field[$i];
 439                                 my $call = uc $field[$i+1];
 440                                 my $confmode = $field[$i+2];
 441                                 my $ver = $field[$i+3];
 442
 443                                 $ver = 5400 if !$ver && $allowzero;
 444
 445                                 # now check the call over
 446                                 my $node = DXCluster->get_exact($call);
 447                                 if ($node) {
 448                                         my $dxchan;
 449                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 450                                                 dbg('chan', "LOOP: $call connected locally");
 451                                         }
 452                                     if ($node->dxchan != $self) {
 453                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 454                                                 next;
 455                                         }
 456                                         dbg('chan', "already have $call");
 457                                         next;
 458                                 }
 459
 460                                 # check for sane parameters
 461                                 next if $ver < 5000; # only works with version 5 software
 462                                 next if length $call < 3; # min 3 letter callsigns
 463
 464                                 # add it to the nodes table and outgoing line
 465                                 $newline .= "$here^$call^$confmode^$ver^";
 466                                 DXNode->new($self, $call, $confmode, $here, $ver);
 467
 468                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 469                                 my $mref = DXMsg::get_busy($call);
 470                                 $mref->stop_msg($call) if $mref;
 471
 472                                 # add this station to the user database, if required (don't remove SSID from nodes)
 473                                 my $user = DXUser->get_current($call);
 474                                 if (!$user) {
 475                                         $user = DXUser->new($call);
 476                                         $user->sort('A');
 477                                         $user->priv(1);                   # I have relented and defaulted nodes
 478                                         $self->{priv} = 1;                # to user RCMDs allowed
 479                                         $user->homenode($call);
 480                                         $user->node($call);
 481                                 }
 482                                 $user->lastin($main::systime) unless DXChannel->get($call);
 483                                 $user->put;
 484                         }
 485
 486                         return if $newline eq "PC19^";
 487
 488                         # add hop count
 489                         $newline .=  get_hops(19) . "^";
 490                         $line = $newline;
 491                         last SWITCH;
 492                 }
 493
 494                 if ($pcno == 20) {              # send local configuration
 495                         $self->send_local_config();
 496                         $self->send(pc22());
 497                         $self->state('normal');
 498                         return;
 499                 }
 500
 501                 if ($pcno == 21) {              # delete a cluster from the list
 502                         my $call = uc $field[1];
 503                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 504                                 my $node = DXCluster->get_exact($call);
 505                                 if ($node) {
 506                                         if ($node->dxchan != $self) {
 507                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 508                                                 return;
 509                                         }
 510                                         my $dxchan;
 511                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 512                                                 dbg('chan', "LOOP: $call connected locally");
 513                                                 return;
 514                                         }
 515                                         $node->del();
 516                                 } else {
 517                                         dbg('chan', "$call not in table, dropped");
 518                                         return;
 519                                 }
 520                         }
 521                         last SWITCH;
 522                 }
 523
 524                 if ($pcno == 22) {
 525                         $self->state('normal');
 526                         return;
 527                 }
 528
 529                 if ($pcno == 23 || $pcno == 27) { # WWV info
 530
 531                         # route 'foreign' pc27s
 532                         if ($pcno == 27) {
 533                                 if ($field[8] ne $main::mycall) {
 534                                         $self->route($field[8], $line);
 535                                         return;
 536                                 }
 537                         }
 538
 539                         # do some de-duping
 540                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 541                         my $sfi = unpad($field[3]);
 542                         my $k = unpad($field[4]);
 543                         my $i = unpad($field[5]);
 544                         my ($r) = $field[6] =~ /R=(\d+)/;
 545                         $r = 0 unless $r;
 546                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 547                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 548                                 return;
 549                         }
 550                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 551                                 dbg('chan', "Dup WWV Spot ignored\n");
 552                                 return;
 553                         }
 554                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 555
 556                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 557
 558                         my $rep;
 559                         eval {
 560                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 561                         };
 562 #                       dbg('local', "Local::wwv2 error $@") if $@;
 563                         return if $rep;
 564
 565                         # DON'T be silly and send on PC27s!
 566                         return if $pcno == 27;
 567
 568                         # broadcast to the eager world
 569                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 570                         return;
 571                 }
 572
 573                 if ($pcno == 24) {              # set here status
 574                         my $call = uc $field[1];
 575                         my $ref = DXCluster->get_exact($call);
 576                         $ref->here($field[2]) if $ref;
 577                         last SWITCH;
 578                 }
 579
 580                 if ($pcno == 25) {      # merge request
 581                         if ($field[1] ne $main::mycall) {
 582                                 $self->route($field[1], $line);
 583                                 return;
 584                         }
 585                         if ($field[2] eq $main::mycall) {
 586                                 dbg('chan', "Trying to merge to myself, ignored");
 587                                 return;
 588                         }
 589
 590                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 591
 592                         # spots
 593                         if ($field[3] > 0) {
 594                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 595                                 my $in;
 596                                 foreach $in (@in) {
 597                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 598                                 }
 599                         }
 600
 601                         # wwv
 602                         if ($field[4] > 0) {
 603                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 604                                 my $in;
 605                                 foreach $in (@in) {
 606                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 607                                 }
 608                         }
 609                         return;
 610                 }
 611
 612                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 613                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 614                                 DXMsg::process($self, $line);
 615                         } else {
 616                                 $self->route($field[1], $line);
 617                         }
 618                         return;
 619                 }
 620
 621                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 622                         if ($field[1] eq $main::mycall) {
 623                                 my $ref = DXUser->get_current($field[2]);
 624                                 my $cref = DXCluster->get($field[2]);
 625                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 626                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 627                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 628                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 629                                                 my $oldpriv = $self->{priv};
 630                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 631                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 632                                                 $self->{priv} = $oldpriv;
 633                                                 for (@in) {
 634                                                         s/\s*$//og;
 635                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 636                                                         Log('rcmd', 'out', $field[2], $_);
 637                                                 }
 638                                                 delete $self->{remotecmd};
 639                                         } else {
 640                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 641                                         }
 642                                 } else {
 643                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 644                                 }
 645                         } else {
 646                                 my $ref = DXUser->get_current($field[1]);
 647                                 if ($ref && $ref->is_clx) {
 648                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 649                                 } else {
 650                                         $self->route($field[1], $line);
 651                                 }
 652                         }
 653                         return;
 654                 }
 655
 656                 if ($pcno == 35) {              # remote command replies
 657                         if ($field[1] eq $main::mycall) {
 658                                 my $s = $rcmds{$field[2]};
 659                                 if ($s) {
 660                                         my $dxchan = DXChannel->get($s->{call});
 661                                         $dxchan->send($field[3]) if $dxchan;
 662                                         delete $rcmds{$field[2]} if !$dxchan;
 663                                 } else {
 664                                         # send unsolicited ones to the sysop
 665                                         my $dxchan = DXChannel->get($main::myalias);
 666                                         $dxchan->send($field[3]) if $dxchan;
 667                                 }
 668                         } else {
 669                                 my $ref = DXUser->get_current($field[1]);
 670                                 if ($ref && $ref->is_clx) {
 671                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 672                                 } else {
 673                                         $self->route($field[1], $line);
 674                                 }
 675                         }
 676                         return;
 677                 }
 678
 679                 # for pc 37 see 44 onwards
 680
 681                 if ($pcno == 38) {              # node connected list from neighbour
 682                         return;
 683                 }
 684
 685                 if ($pcno == 39) {              # incoming disconnect
 686                         $self->disconnect(1);
 687                         return;
 688                 }
 689
 690                 if ($pcno == 41) {              # user info
 691                         # add this station to the user database, if required
 692                         my $user = DXUser->get_current($field[1]);
 693                         if (!$user) {
 694                                 # then try without an SSID
 695                                 $field[1] =~ s/-\d+$//o;
 696                                 $user = DXUser->get_current($field[1]);
 697                         }
 698                         $user = DXUser->new($field[1]) if !$user;
 699
 700                         if ($field[2] == 1) {
 701                                 $user->name($field[3]);
 702                         } elsif ($field[2] == 2) {
 703                                 $user->qth($field[3]);
 704                         } elsif ($field[2] == 3) {
 705                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 706                                 $user->lat($lat);
 707                                 $user->long($long);
 708                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 709                         } elsif ($field[2] == 4) {
 710                                 $user->homenode($field[3]);
 711                         }
 712                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 713                         $user->put;
 714                         last SWITCH;
 715                 }
 716                 if ($pcno == 43) {
 717                         last SWITCH;
 718                 }
 719                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 720                         DXDb::process($self, $line);
 721                         return;
 722                 }
 723
 724                 if ($pcno == 50) {              # keep alive/user list
 725                         my $node = DXCluster->get_exact($field[1]);
 726                         if ($node) {
 727                                 return unless $node->isa('DXNode');
 728                                 return unless $node->dxchan == $self;
 729                                 $node->update_users($field[2]);
 730                         }
 731                         last SWITCH;
 732                 }
 733
 734                 if ($pcno == 51) {              # incoming ping requests/answers
 735
 736                         # is it for us?
 737                         if ($field[1] eq $main::mycall) {
 738                                 my $flag = $field[3];
 739                                 if ($flag == 1) {
 740                                         $self->send(pc51($field[2], $field[1], '0'));
 741                                 } else {
 742                                         # it's a reply, look in the ping list for this one
 743                                         my $ref = $pings{$field[2]};
 744                                         if ($ref) {
 745                                                 my $tochan =  DXChannel->get($field[2]);
 746                                                 while (@$ref) {
 747                                                         my $r = shift @$ref;
 748                                                         my $dxchan = DXChannel->get($r->{call});
 749                                                         next unless $dxchan;
 750                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 751                                                         if ($dxchan->is_user) {
 752                                                                 my $s = sprintf "%.2f", $t;
 753                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 754                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 755                                                         } elsif ($dxchan->is_node) {
 756                                                                 if ($tochan) {
 757                                                                         $tochan->{nopings} = 2; # pump up the timer
 758                                                                         push @{$tochan->{pingtime}}, $t;
 759                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 760                                                                         my $st;
 761                                                                         for (@{$tochan->{pingtime}}) {
 762                                                                                 $st += $_;
 763                                                                         }
 764                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 765                                                                 }
 766                                                         }
 767                                                 }
 768                                         }
 769                                 }
 770                         } else {
 771                                 # route down an appropriate thingy
 772                                 $self->route($field[1], $line);
 773                         }
 774                         return;
 775                 }
 776
 777                 if ($pcno == 73) {  # WCY broadcasts
 778
 779                         # do some de-duping
 780                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 781                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 782                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 783                                 return;
 784                         }
 785                         @field = map { unpad($_) } @field;
 786                         if (WCY::dup($d,@field[3..7])) {
 787                                 dbg('chan', "Dup WCY Spot ignored\n");
 788                                 return;
 789                         }
 790
 791                         my $wcy = WCY::update($d, @field[2..12]);
 792
 793                         my $rep;
 794                         eval {
 795                                 $rep = Local::wwv($self, @field[1..12]);
 796                         };
 797                         # dbg('local', "Local::wcy error $@") if $@;
 798                         return if $rep;
 799
 800                         # broadcast to the eager world
 801                         send_wcy_spot($self, $line, $d, @field[2..12]);
 802                         return;
 803                 }
 804
 805                 if ($pcno == 84) { # remote commands (incoming)
 806                         if ($field[1] eq $main::mycall) {
 807                                 my $ref = DXUser->get_current($field[2]);
 808                                 my $cref = DXCluster->get($field[2]);
 809                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 810                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 811                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 812                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 813                                                 my $oldpriv = $self->{priv};
 814                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 815                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 816                                                 $self->{priv} = $oldpriv;
 817                                                 for (@in) {
 818                                                         s/\s*$//og;
 819                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
 820                                                         Log('rcmd', 'out', $field[2], $_);
 821                                                 }
 822                                                 delete $self->{remotecmd};
 823                                         } else {
 824                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
 825                                         }
 826                                 } else {
 827                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
 828                                 }
 829                         } else {
 830                                 my $ref = DXUser->get_current($field[1]);
 831                                 if ($ref && $ref->is_clx) {
 832                                         $self->route($field[1], $line);
 833                                 } else {
 834                                         route($field[1], pc34($field[2], $field[1], $field[4]));
 835                                 }
 836                         }
 837                         return;
 838                 }
 839
 840                 if ($pcno == 85) {              # remote command replies
 841                         if ($field[1] eq $main::mycall) {
 842                                 my $dxchan = DXChannel->get($field[3]);
 843                                 if ($dxchan) {
 844                                         $dxchan->send($field[4]);
 845                                 } else {
 846                                         my $s = $rcmds{$field[2]};
 847                                         if ($s) {
 848                                                 $dxchan = DXChannel->get($s->{call});
 849                                                 $dxchan->send($field[4]) if $dxchan;
 850                                                 delete $rcmds{$field[2]} if !$dxchan;
 851                                         } else {
 852                                                 # send unsolicited ones to the sysop
 853                                                 my $dxchan = DXChannel->get($main::myalias);
 854                                                 $dxchan->send($field[4]) if $dxchan;
 855                                         }
 856                                 }
 857                         } else {
 858                                 my $ref = DXUser->get_current($field[1]);
 859                                 if ($ref && $ref->is_clx) {
 860                                         $self->route($field[1], $line);
 861                                 } else {
 862                                         route($field[1], pc35($field[2], $field[1], $field[4]));
 863                                 }
 864                         }
 865                         return;
 866                 }
 867         }
 868
 869         # if get here then rebroadcast the thing with its Hop count decremented (if
 870         # there is one). If it has a hop count and it decrements to zero then don't
 871         # rebroadcast it.
 872         #
 873         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
 874         #        REBROADCAST!!!!
 875         #
 876
 877         unless ($self->{isolate}) {
 878                 broadcast_ak1a($line, $self); # send it to everyone but me
 879         }
 880 }
 881
 882 #
 883 # This is called from inside the main cluster processing loop and is used
 884 # for despatching commands that are doing some long processing job
 885 #
 886 sub process
 887 {
 888         my $t = time;
 889         my @dxchan = DXChannel->get_all();
 890         my $dxchan;
 891
 892         foreach $dxchan (@dxchan) {
 893                 next unless $dxchan->is_node();
 894                 next if $dxchan == $me;
 895
 896                 # send a pc50 out on this channel
 897                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
 898                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
 899                         $dxchan->pc50_t($t);
 900                 }
 901
 902                 # send a ping out on this channel
 903                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
 904                         if ($dxchan->{nopings} <= 0) {
 905                                 $dxchan->disconnect;
 906                         } else {
 907                                 addping($main::mycall, $dxchan->call);
 908                                 $dxchan->{nopings} -= 1;
 909                                 $dxchan->{lastping} = $t;
 910                         }
 911                 }
 912         }
 913
 914         my $key;
 915         my $val;
 916         my $cutoff;
 917         if ($main::systime - 3600 > $last_hour) {
 918                 Spot::process;
 919                 Geomag::process;
 920                 AnnTalk::process;
 921                 $last_hour = $main::systime;
 922         }
 923 }
 924
 925 #
 926 # finish up a pc context
 927 #
 928 sub finish
 929 {
 930         my $self = shift;
 931         my $call = $self->call;
 932         my $conn = shift;
 933         my $ref = DXCluster->get_exact($call);
 934
 935         # unbusy and stop and outgoing mail
 936         my $mref = DXMsg::get_busy($call);
 937         $mref->stop_msg($call) if $mref;
 938
 939         # broadcast to all other nodes that all the nodes connected to via me are gone
 940         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 941         my $node;
 942
 943         foreach $node (@gonenodes) {
 944                 next if $node->call eq $call;
 945                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
 946                 $node->del();
 947         }
 948
 949         # remove outstanding pings
 950         delete $pings{$call};
 951
 952         # now broadcast to all other ak1a nodes that I have gone
 953         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
 954
 955         # I was the last node visited
 956     $self->user->node($main::mycall);
 957
 958         # send info to all logged in thingies
 959         $self->tell_login('logoutn');
 960
 961         Log('DXProt', $call . " Disconnected");
 962         $ref->del() if $ref;
 963 }
 964
 965 #
 966 # some active measures
 967 #
 968 sub send_dx_spot
 969 {
 970         my $self = shift;
 971         my $line = shift;
 972         my @dxchan = DXChannel->get_all();
 973         my $dxchan;
 974
 975         # send it if it isn't the except list and isn't isolated and still has a hop count
 976         # taking into account filtering and so on
 977         foreach $dxchan (@dxchan) {
 978                 my $routeit;
 979                 my ($filter, $hops);
 980
 981                 if ($dxchan->{spotfilter}) {
 982                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
 983                         next unless $filter;
 984                 }
 985
 986                 if ($dxchan->is_node) {
 987                         next if $dxchan == $self;
 988                         if ($hops) {
 989                                 $routeit = $line;
 990                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
 991                         } else {
 992                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
 993                                 next unless $routeit;
 994                         }
 995                         if ($filter) {
 996                                 $dxchan->send($routeit) if $routeit;
 997                         } else {
 998                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
 999                         }
1000                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1001                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1002                         $buf .= "\a\a" if $dxchan->{beep};
1003                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1004                                 $dxchan->send($buf);
1005                         } else {
1006                                 $dxchan->delay($buf);
1007                         }
1008                 }
1009         }
1010 }
1011
1012 sub send_wwv_spot
1013 {
1014         my $self = shift;
1015         my $line = shift;
1016         my @dxchan = DXChannel->get_all();
1017         my $dxchan;
1018
1019         # send it if it isn't the except list and isn't isolated and still has a hop count
1020         # taking into account filtering and so on
1021         foreach $dxchan (@dxchan) {
1022                 my $routeit;
1023                 my ($filter, $hops);
1024
1025                 if ($dxchan->{wwvfilter}) {
1026                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
1027                          next unless $filter;
1028                 }
1029                 if ($dxchan->is_node) {
1030                         next if $dxchan == $self;
1031                         if ($hops) {
1032                                 $routeit = $line;
1033                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1034                         } else {
1035                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1036                                 next unless $routeit;
1037                         }
1038                         if ($filter) {
1039                                 $dxchan->send($routeit) if $routeit;
1040                         } else {
1041                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1042
1043                         }
1044                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1045                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1046                         $buf .= "\a\a" if $dxchan->{beep};
1047                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1048                                 $dxchan->send($buf);
1049                         } else {
1050                                 $dxchan->delay($buf);
1051                         }
1052                 }
1053         }
1054 }
1055
1056 sub send_wcy_spot
1057 {
1058         my $self = shift;
1059         my $line = shift;
1060         my @dxchan = DXChannel->get_all();
1061         my $dxchan;
1062
1063         # send it if it isn't the except list and isn't isolated and still has a hop count
1064         # taking into account filtering and so on
1065         foreach $dxchan (@dxchan) {
1066                 my $routeit;
1067                 my ($filter, $hops);
1068
1069                 if ($dxchan->{wcyfilter}) {
1070                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1071                          next unless $filter;
1072                 }
1073                 if ($dxchan->is_clx || $dxchan->is_spider) {
1074                         next if $dxchan == $self;
1075                         if ($hops) {
1076                                 $routeit = $line;
1077                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1078                         } else {
1079                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1080                                 next unless $routeit;
1081                         }
1082                         if ($filter) {
1083                                 $dxchan->send($routeit) if $routeit;
1084                         } else {
1085                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1086                         }
1087                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1088                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1089                         $buf .= "\a\a" if $dxchan->{beep};
1090                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1091                                 $dxchan->send($buf);
1092                         } else {
1093                                 $dxchan->delay($buf);
1094                         }
1095                 }
1096         }
1097 }
1098
1099 # send an announce
1100 sub send_announce
1101 {
1102         my $self = shift;
1103         my $line = shift;
1104         my @dxchan = DXChannel->get_all();
1105         my $dxchan;
1106         my $text = unpad($_[2]);
1107         my $target;
1108         my $to = 'To ';
1109
1110         if ($_[3] eq '*') {     # sysops
1111                 $target = "SYSOP";
1112         } elsif ($_[3] gt ' ') { # speciality list handling
1113                 my ($name) = split /\./, $_[3];
1114                 $target = "$name"; # put the rest in later (if bothered)
1115         }
1116
1117         if ($_[5] eq '1') {
1118                 $target = "WX";
1119                 $to = '';
1120         }
1121         $target = "All" if !$target;
1122
1123         Log('ann', $target, $_[0], $text);
1124
1125         # send it if it isn't the except list and isn't isolated and still has a hop count
1126         # taking into account filtering and so on
1127         foreach $dxchan (@dxchan) {
1128                 my $routeit;
1129                 my ($filter, $hops);
1130
1131                 if ($dxchan->{annfilter}) {
1132                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1133                         next unless $filter;
1134                 }
1135                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1136                         next if $dxchan == $self;
1137                         if ($hops) {
1138                                 $routeit = $line;
1139                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1140                         } else {
1141                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1142                                 next unless $routeit;
1143                         }
1144                         if ($filter) {
1145                                 $dxchan->send($routeit) if $routeit;
1146                         } else {
1147                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1148
1149                         }
1150                 } elsif ($dxchan->is_user && $dxchan->{ann}) {
1151                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1152                         my $buf = "$to$target de $_[0]: $text";
1153                         $buf .= "\a\a" if $dxchan->{beep};
1154                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1155                                 $dxchan->send($buf);
1156                         } else {
1157                                 $dxchan->delay($buf);
1158                         }
1159                 }
1160         }
1161 }
1162
1163 sub send_local_config
1164 {
1165         my $self = shift;
1166         my $n;
1167         my @nodes;
1168         my @localnodes;
1169         my @remotenodes;
1170
1171         # send our nodes
1172         if ($self->{isolate}) {
1173                 @localnodes = (DXCluster->get_exact($main::mycall));
1174         } else {
1175                 # create a list of all the nodes that are not connected to this connection
1176                 # and are not themselves isolated, this to make sure that isolated nodes
1177         # don't appear outside of this node
1178                 @nodes = DXNode::get_all();
1179                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1180                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1181                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1182                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1183                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1184                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1185         }
1186
1187         my @s = $me->pc19(@localnodes, @remotenodes);
1188         for (@s) {
1189                 my $routeit = adjust_hops($self, $_);
1190                 $self->send($routeit) if $routeit;
1191         }
1192
1193         # get all the users connected on the above nodes and send them out
1194         foreach $n (@localnodes, @remotenodes) {
1195                 my @users = values %{$n->list};
1196                 my @s = pc16($n, @users);
1197                 for (@s) {
1198                         my $routeit = adjust_hops($self, $_);
1199                         $self->send($routeit) if $routeit;
1200                 }
1201         }
1202 }
1203
1204 #
1205 # route a message down an appropriate interface for a callsign
1206 #
1207 # is called route(to, pcline);
1208 #
1209 sub route
1210 {
1211         my ($self, $call, $line) = @_;
1212         my $cl = DXCluster->get_exact($call);
1213         if ($cl) {       # don't route it back down itself
1214                 if (ref $self && $call eq $self->{call}) {
1215                         dbg('chan', "Trying to route back to source, dropped");
1216                         return;
1217                 }
1218                 my $hops;
1219                 my $dxchan = $cl->{dxchan};
1220                 if ($dxchan) {
1221                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1222                         if ($routeit) {
1223                                 $dxchan->send($routeit) if $dxchan;
1224                         }
1225                 }
1226         }
1227 }
1228
1229 # broadcast a message to all clusters taking into account isolation
1230 # [except those mentioned after buffer]
1231 sub broadcast_ak1a
1232 {
1233         my $s = shift;                          # the line to be rebroadcast
1234         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1235         my @dxchan = DXChannel::get_all_ak1a();
1236         my $dxchan;
1237
1238         # send it if it isn't the except list and isn't isolated and still has a hop count
1239         foreach $dxchan (@dxchan) {
1240                 next if grep $dxchan == $_, @except;
1241                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1242                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1243         }
1244 }
1245
1246 # broadcast a message to all clusters ignoring isolation
1247 # [except those mentioned after buffer]
1248 sub broadcast_all_ak1a
1249 {
1250         my $s = shift;                          # the line to be rebroadcast
1251         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1252         my @dxchan = DXChannel::get_all_ak1a();
1253         my $dxchan;
1254
1255         # send it if it isn't the except list and isn't isolated and still has a hop count
1256         foreach $dxchan (@dxchan) {
1257                 next if grep $dxchan == $_, @except;
1258                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1259                 $dxchan->send($routeit);
1260         }
1261 }
1262
1263 # broadcast to all users
1264 # storing the spot or whatever until it is in a state to receive it
1265 sub broadcast_users
1266 {
1267         my $s = shift;                          # the line to be rebroadcast
1268         my $sort = shift;           # the type of transmission
1269         my $fref = shift;           # a reference to an object to filter on
1270         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1271         my @dxchan = DXChannel::get_all_users();
1272         my $dxchan;
1273         my @out;
1274
1275         foreach $dxchan (@dxchan) {
1276                 next if grep $dxchan == $_, @except;
1277                 push @out, $dxchan;
1278         }
1279         broadcast_list($s, $sort, $fref, @out);
1280 }
1281
1282 # broadcast to a list of users
1283 sub broadcast_list
1284 {
1285         my $s = shift;
1286         my $sort = shift;
1287         my $fref = shift;
1288         my $dxchan;
1289
1290         foreach $dxchan (@_) {
1291                 my $filter = 1;
1292
1293                 if ($sort eq 'dx') {
1294                     next unless $dxchan->{dx};
1295                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1296                         next unless $filter;
1297                 }
1298                 next if $sort eq 'ann' && !$dxchan->{ann};
1299                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1300                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1301                 next if $sort eq 'wx' && !$dxchan->{wx};
1302
1303                 $s =~ s/\a//og unless $dxchan->{beep};
1304
1305                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1306                         $dxchan->send($s);
1307                 } else {
1308                         $dxchan->delay($s);
1309                 }
1310         }
1311 }
1312
1313
1314 #
1315 # obtain the hops from the list for this callsign and pc no
1316 #
1317
1318 sub get_hops
1319 {
1320         my $pcno = shift;
1321         my $hops = $DXProt::hopcount{$pcno};
1322         $hops = $DXProt::def_hopcount if !$hops;
1323         return "H$hops";
1324 }
1325
1326 #
1327 # adjust the hop count on a per node basis using the user loadable
1328 # hop table if available or else decrement an existing one
1329 #
1330
1331 sub adjust_hops
1332 {
1333         my $self = shift;
1334         my $s = shift;
1335         my $call = $self->{call};
1336         my $hops;
1337
1338         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1339                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1340                 confess "$call called adjust_hops with '$s'" unless $pcno;
1341                 my $ref = $nodehops{$call} if %nodehops;
1342                 if ($ref) {
1343                         my $newhops = $ref->{$pcno};
1344                         return "" if defined $newhops && $newhops == 0;
1345                         $newhops = $ref->{default} unless $newhops;
1346                         return "" if defined $newhops && $newhops == 0;
1347                         $newhops = $hops if !$newhops;
1348                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1349                 } else {
1350                         # simply decrement it
1351                         $hops--;
1352                         return "" if !$hops;
1353                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1354                 }
1355         }
1356         return $s;
1357 }
1358
1359 #
1360 # load hop tables
1361 #
1362 sub load_hops
1363 {
1364         my $self = shift;
1365         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1366         do "$main::data/hop_table.pl";
1367         return $@ if $@;
1368         return 0;
1369 }
1370
1371
1372 # add a ping request to the ping queues
1373 sub addping
1374 {
1375         my ($from, $to) = @_;
1376         my $ref = $pings{$to} || [];
1377         my $r = {};
1378         $r->{call} = $from;
1379         $r->{t} = [ gettimeofday ];
1380         route(undef, $to, pc51($to, $main::mycall, 1));
1381         push @$ref, $r;
1382         $pings{$to} = $ref;
1383 }
1384
1385 # add a rcmd request to the rcmd queues
1386 sub addrcmd
1387 {
1388         my ($self, $to, $cmd) = @_;
1389
1390         my $r = {};
1391         $r->{call} = $self->{call};
1392         $r->{t} = $main::systime;
1393         $r->{cmd} = $cmd;
1394         $rcmds{$to} = $r;
1395
1396         my $ref = DXCluster->get_exact($to);
1397     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1398                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1399         } else {
1400                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1401         }
1402 }
1403
1404 sub disconnect
1405 {
1406         my $self = shift;
1407         my $nopc39 = shift;
1408
1409         if ($self->{conn} && !$nopc39) {
1410                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1411         }
1412
1413         $self->SUPER::disconnect;
1414 }
1415
1416 #
1417 # send a talk message to this thingy
1418 #
1419 sub talk
1420 {
1421         my ($self, $from, $to, $via, $line) = @_;
1422
1423         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1424         $self->send(DXProt::pc10($from, $to, $via, $line));
1425         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1426 }
1427 1;
1428 __END__