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 @checklist);
  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 @checklist =
  53 (
  54  [ qw(c c m p bc c) ],                  # pc10
  55  [ qw(f m d t m c c h) ],               # pc11
  56  [ qw(c bc m bp bm p h) ],              # pc12
  57  [ qw(c h) ],                                   #
  58  [ qw(c h) ],                                   #
  59  [ qw(c m h) ],                                 #
  60  undef ,                                                # pc16 has to be validated manually
  61  [ qw(c c h) ],                                 # pc17
  62  [ qw(m n) ],                                   # pc18
  63  undef ,                                                # pc19 has to be validated manually
  64  undef ,                                                # pc20 no validation
  65  [ qw(c m h) ],                                 # pc21
  66  undef ,                                                # pc22 no validation
  67  [ qw(d n n n n m c c h) ],             # pc23
  68  [ qw(c p h) ],                                 # pc24
  69  [ qw(c c n n) ],                               # pc25
  70  [ qw(f m d t m c c bc) ],              # pc26
  71  [ qw(d n n n n m c c bc) ],    # pc27
  72  [ qw(c c c c d t p m bp n p bp bc) ], # pc28
  73  [ qw(c c n m) ],                               # pc29
  74  [ qw(c c n) ],                                 # pc30
  75  [ qw(c c n) ],                                 # pc31
  76  [ qw(c c n) ],                                 # pc32
  77  [ qw(c c n) ],                                 # pc33
  78  [ qw(c c m) ],                                 # pc34
  79  [ qw(c c m) ],                                 # pc35
  80  [ qw(c c m) ],                                 # pc36
  81  [ qw(c c n m) ],                               # pc37
  82  undef,                                                 # pc38 not interested
  83  [ qw(c m) ],                                   # pc39
  84  [ qw(c c m p n) ],                             # pc40
  85  [ qw(c n m h) ],                               # pc41
  86  [ qw(c c n) ],                                 # pc42
  87  undef,                                                 # pc43 don't handle it
  88  [ qw(c c n m m c) ],                   # pc44
  89  [ qw(c c n m) ],                               # pc45
  90  [ qw(c c n) ],                                 # pc46
  91  undef,                                                 # pc47
  92  undef,                                                 # pc48
  93  [ qw(c m h) ],                                 # pc49
  94  [ qw(c n h) ],                                 # pc50
  95  [ qw(c c n) ],                                 # pc51
  96  undef,
  97  undef,
  98  undef,
  99  undef,
 100  undef,
 101  undef,
 102  undef,
 103  undef,
 104  undef,                                                 # pc60
 105  undef,
 106  undef,
 107  undef,
 108  undef,
 109  undef,
 110  undef,
 111  undef,
 112  undef,
 113  undef,
 114  undef,                                                 # pc70
 115  undef,
 116  undef,
 117  [ qw(d n n n n n n m m m c c h) ],     # pc73
 118  undef,
 119  undef,
 120  undef,
 121  undef,
 122  undef,
 123  undef,
 124  undef,                                                 # pc80
 125  undef,
 126  undef,
 127  undef,
 128  [ qw(c c c m) ],                               # pc84
 129  [ qw(c c c m) ],                               # pc85
 130 );
 131
 132 # use the entry in the check list to check the field list presented
 133 # return OK if line NOT in check list (for now)
 134 sub check
 135 {
 136         my $n = shift;
 137         $n -= 10;
 138         return 0 if $n < 0 || $n > @checklist;
 139         my $ref = $checklist[$n];
 140         return 0 unless ref $ref;
 141
 142         my $i;
 143         shift;    # not interested in the first field
 144         for ($i = 0; $i < @$ref; $i++) {
 145                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 146                 return 0 unless $act;
 147                 next if $blank && $_[$i] =~ /^[ \*]$/;
 148                 if ($act eq 'c') {
 149                         return $i+1 unless is_callsign($_[$i]);
 150                 } elsif ($act eq 'm') {
 151                         return $i+1 unless is_pctext($_[$i]);
 152                 } elsif ($act eq 'p') {
 153                         return $i+1 unless is_pcflag($_[$i]);
 154                 } elsif ($act eq 'f') {
 155                         return $i+1 unless is_freq($_[$i]);
 156                 } elsif ($act eq 'n') {
 157                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 158                 } elsif ($act eq 'h') {
 159                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 160                 } elsif ($act eq 'd') {
 161                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 162                 } elsif ($act eq 't') {
 163                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 164                 }
 165         }
 166         return 0;
 167 }
 168
 169 sub init
 170 {
 171         my $user = DXUser->get($main::mycall);
 172         $DXProt::myprot_version += $main::version*100;
 173         $me = DXProt->new($main::mycall, 0, $user);
 174         $me->{here} = 1;
 175         $me->{state} = "indifferent";
 176         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 177         confess $@ if $@;
 178         $me->{sort} = 'S';    # S for spider
 179
 180         # now prime the spot and wwv  duplicates file with data
 181 #    my @today = Julian::unixtoj(time);
 182 #       for (Spot::readfile(@today), Spot::readfile(Julian::sub(@today, 1))) {
 183 #               Spot::dup(@{$_}[0..3]);
 184 #       }
 185 #       for (Geomag::readfile(time)) {
 186 #               Geomag::dup(@{$_}[1..5]);
 187 #       }
 188
 189         # load the baddx file
 190         do "$baddxfn" if -e "$baddxfn";
 191         print "$@\n" if $@;
 192 }
 193
 194 #
 195 # obtain a new connection this is derived from dxchannel
 196 #
 197
 198 sub new
 199 {
 200         my $self = DXChannel::alloc(@_);
 201         return $self;
 202 }
 203
 204 # this is how a pc connection starts (for an incoming connection)
 205 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 206 # all the crap that comes between).
 207 sub start
 208 {
 209         my ($self, $line, $sort) = @_;
 210         my $call = $self->{call};
 211         my $user = $self->{user};
 212
 213         # remember type of connection
 214         $self->{consort} = $line;
 215         $self->{outbound} = $sort eq 'O';
 216         $self->{priv} = $user->priv || 1;     # other clusters can always be 'normal' users
 217         $self->{lang} = $user->lang || 'en';
 218         $self->{isolate} = $user->{isolate};
 219         $self->{consort} = $line;       # save the connection type
 220         $self->{here} = 1;
 221
 222         # get the INPUT filters (these only pertain to Clusters)
 223         $self->{inspotfilter} = Filter::read_in('spots', $call, 1);
 224         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1);
 225         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1);
 226         $self->{inannfilter} = Filter::read_in('ann', $call, 1);
 227
 228         # set unbuffered and no echo
 229         $self->send_now('B',"0");
 230         $self->send_now('E',"0");
 231
 232         # ping neighbour node stuff
 233         my $ping = $user->pingint;
 234         $ping = 5*60 unless defined $ping;
 235         $self->{pingint} = $ping;
 236         $self->{nopings} = $user->nopings || 2;
 237         $self->{pingtime} = [ ];
 238         $self->{pingave} = 0;
 239
 240         # send initialisation string
 241         unless ($self->{outbound}) {
 242 #               $self->send(pc38()) if DXNode->get_all();
 243                 $self->send(pc18());
 244                 $self->{lastping} = $main::systime;
 245         } else {
 246                 # remove from outstanding connects queue
 247                 @main::outstanding_connects = grep {$_->{call} ne $call} @main::outstanding_connects;
 248                 $self->{lastping} = $main::systime + $self->pingint / 2;
 249         }
 250         $self->state('init');
 251         $self->pc50_t(time);
 252
 253         # send info to all logged in thingies
 254         $self->tell_login('loginn');
 255
 256         Log('DXProt', "$call connected");
 257 }
 258
 259 #
 260 # This is the normal pcxx despatcher
 261 #
 262 sub normal
 263 {
 264         my ($self, $line) = @_;
 265         my @field = split /\^/, $line;
 266         return unless @field;
 267
 268         pop @field if $field[-1] eq '~';
 269
 270 #       print join(',', @field), "\n";
 271
 272         # ignore any lines that don't start with PC
 273         return if !$field[0] =~ /^PC/;
 274
 275         # process PC frames
 276         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 277         return unless $pcno;
 278         return if $pcno < 10 || $pcno > 99;
 279
 280         # check for and dump bad protocol messages
 281         my $n = check($pcno, @field);
 282         if ($n) {
 283                 dbg('chan', "bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")");
 284                 return;
 285         }
 286
 287         # local processing 1
 288         my $pcr;
 289         eval {
 290                 $pcr = Local::pcprot($self, $pcno, @field);
 291         };
 292 #       dbg('local', "Local::pcprot error $@") if $@;
 293         return if $pcr;
 294
 295  SWITCH: {
 296                 if ($pcno == 10) {              # incoming talk
 297
 298                         # is it for me or one of mine?
 299                         my ($to, $via, $call, $dxchan);
 300                         if ($field[5] gt ' ') {
 301                                 $call = $via = $field[2];
 302                                 $to = $field[5];
 303                                 unless (is_callsign($to)) {
 304                                         dbg('chan', "Corrupt talk, rejected");
 305                                         return;
 306                                 }
 307                         } else {
 308                                 $call = $to = $field[2];
 309                         }
 310                         if ($dxchan = DXChannel->get($call)) {
 311                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 312                         } else {
 313                                 $self->route($field[2], $line); # relay it on its way
 314                         }
 315                         return;
 316                 }
 317
 318                 if ($pcno == 11 || $pcno == 26) { # dx spot
 319
 320                         # route 'foreign' pc26s
 321                         if ($pcno == 26) {
 322                                 if ($field[7] ne $main::mycall) {
 323                                         $self->route($field[7], $line);
 324                                         return;
 325                                 }
 326                         }
 327
 328                         # if this is a 'nodx' node then ignore it
 329                         if (grep $field[7] =~ /^$_/,  @DXProt::nodx_node) {
 330                                 dbg('chan', "Bad DXNode, dropped");
 331                                 return;
 332                         }
 333
 334                         # convert the date to a unix date
 335                         my $d = cltounix($field[3], $field[4]);
 336                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 337                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 338                                 dbg('chan', "Spot ignored, invalid date or out of range ($field[3] $field[4])\n");
 339                                 return;
 340                         }
 341
 342                         # is it 'baddx'
 343                         if (grep $field[2] eq $_, @baddx) {
 344                                 dbg('chan', "Bad DX spot, ignored");
 345                                 return;
 346                         }
 347
 348                         # do some de-duping
 349                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 350                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 351                                 dbg('chan', "Duplicate Spot ignored\n");
 352                                 return;
 353                         }
 354
 355                         my @spot = Spot::add($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 356
 357             #
 358                         # @spot at this point contains:-
 359             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 360                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 361                         # you should be able to route on any of these
 362             #
 363
 364                         # fix up qra locators of known users
 365                         my $user = DXUser->get_current($spot[4]);
 366                         if ($user) {
 367                                 my $qra = $user->qra;
 368                                 unless ($qra && DXBearing::is_qra($qra)) {
 369                                         my $lat = $user->lat;
 370                                         my $long = $user->long;
 371                                         if (defined $lat && defined $long) {
 372                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 373                                                 $user->put;
 374                                         }
 375                                 }
 376
 377                                 # send a remote command to a distant cluster if it is visible and there is no
 378                                 # qra locator and we havn't done it for a month.
 379
 380                                 unless ($user->qra) {
 381                                         my $node;
 382                                         my $to = $user->homenode;
 383                                         my $last = $user->lastoper || 0;
 384                                         if ($send_opernam && $main::systime > $last + $DXUser::lastoperinterval && $to && ($node = DXCluster->get_exact($to)) ) {
 385                                                 my $cmd = "forward/opernam $spot[4]";
 386                                                 # send the rcmd but we aren't interested in the replies...
 387                                                 if ($node && $node->dxchan && $node->dxchan->is_clx) {
 388                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 389                                                 } else {
 390                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 391                                                 }
 392                                                 if ($to ne $field[7]) {
 393                                                         $to = $field[7];
 394                                                         $node = DXCluster->get_exact($to);
 395                                                         if ($node && $node->dxchan && $node->dxchan->is_clx) {
 396                                                                 route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 397                                                         } else {
 398                                                                 route(undef, $to, pc34($main::mycall, $to, $cmd));
 399                                                         }
 400                                                 }
 401                                                 $user->lastoper($main::systime);
 402                                                 $user->put;
 403                                         }
 404                                 }
 405                         }
 406
 407                         # local processing
 408                         my $r;
 409                         eval {
 410                                 $r = Local::spot($self, @spot);
 411                         };
 412 #                       dbg('local', "Local::spot1 error $@") if $@;
 413                         return if $r;
 414
 415                         # DON'T be silly and send on PC26s!
 416                         return if $pcno == 26;
 417
 418                         # send out the filtered spots
 419                         send_dx_spot($self, $line, @spot) if @spot;
 420                         return;
 421                 }
 422
 423                 if ($pcno == 12) {              # announces
 424                         # announce duplicate checking
 425                         $field[3] =~ s/^\s+//;  # remove leading blanks
 426                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 427                                 dbg('chan', "Duplicate Announce ignored");
 428                                 return;
 429                         }
 430
 431                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 432
 433                                 # global ann filtering on INPUT
 434                                 if ($self->{inannfilter}) {
 435                                         my ($filter, $hops) = Filter::it($self->{inannfilter}, @field[1..6], $self->{call} );
 436                                         unless ($filter) {
 437                                                 dbg('chan', "Rejected by filter");
 438                                                 return;
 439                                         }
 440                                 }
 441
 442                                 # send it
 443                                 $self->send_announce($line, @field[1..6]);
 444                         } else {
 445                                 $self->route($field[2], $line);
 446                         }
 447
 448                         return;
 449                 }
 450
 451                 if ($pcno == 13) {
 452                         last SWITCH;
 453                 }
 454                 if ($pcno == 14) {
 455                         last SWITCH;
 456                 }
 457                 if ($pcno == 15) {
 458                         last SWITCH;
 459                 }
 460
 461                 if ($pcno == 16) {              # add a user
 462                         my $node = DXCluster->get_exact($field[1]);
 463                         my $dxchan;
 464                         if (!$node && ($dxchan = DXChannel->get($field[1]))) {
 465                                 # add it to the node table if it isn't present and it's
 466                                 # connected locally
 467                                 $node = DXNode->new($dxchan, $field[1], 0, 1, 5400);
 468                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 469
 470                         }
 471                         return unless $node; # ignore if havn't seen a PC19 for this one yet
 472                         return unless $node->isa('DXNode');
 473                         if ($node->dxchan != $self) {
 474                                 dbg('chan', "LOOP: $field[1] came in on wrong channel");
 475                                 return;
 476                         }
 477                         if (($dxchan = DXChannel->get($field[1])) && $dxchan != $self) {
 478                                 dbg('chan', "LOOP: $field[1] connected locally");
 479                                 return;
 480                         }
 481                         my $i;
 482
 483                         for ($i = 2; $i < $#field; $i++) {
 484                                 my ($call, $confmode, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 485                                 next if !$call || length $call < 3 || length $call > 8;
 486                                 next if !$confmode;
 487                                 $call = uc $call;
 488                                 next if DXCluster->get_exact($call); # we already have this (loop?)
 489
 490                                 $confmode = $confmode eq '*';
 491                                 DXNodeuser->new($self, $node, $call, $confmode, $here);
 492
 493                                 # add this station to the user database, if required
 494                                 $call =~ s/-\d+$//o;        # remove ssid for users
 495                                 my $user = DXUser->get_current($call);
 496                                 $user = DXUser->new($call) if !$user;
 497                                 $user->homenode($node->call) if !$user->homenode;
 498                                 $user->node($node->call);
 499                                 $user->lastin($main::systime) unless DXChannel->get($call);
 500                                 $user->put;
 501                         }
 502
 503                         # queue up any messages (look for privates only)
 504                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 505                         last SWITCH;
 506                 }
 507
 508                 if ($pcno == 17) {              # remove a user
 509                         my $node = DXCluster->get_exact($field[2]);
 510                         my $dxchan;
 511                         if (!$node && ($dxchan = DXChannel->get($field[2]))) {
 512                                 # add it to the node table if it isn't present and it's
 513                                 # connected locally
 514                                 $node = DXNode->new($dxchan, $field[2], 0, 1, 5400);
 515                                 broadcast_ak1a(pc19($dxchan, $node), $dxchan, $self) unless $dxchan->{isolate};
 516                                 return;
 517                         }
 518                         return unless $node;
 519                         return unless $node->isa('DXNode');
 520                         if ($node->dxchan != $self) {
 521                                 dbg('chan', "LOOP: $field[2] came in on wrong channel");
 522                                 return;
 523                         }
 524                         if (($dxchan = DXChannel->get($field[2])) && $dxchan != $self) {
 525                                 dbg('chan', "LOOP: $field[2] connected locally");
 526                                 return;
 527                         }
 528                         my $ref = DXCluster->get_exact($field[1]);
 529                         $ref->del() if $ref;
 530                         last SWITCH;
 531                 }
 532
 533                 if ($pcno == 18) {              # link request
 534                         $self->state('init');
 535
 536                         # first clear out any nodes on this dxchannel
 537                         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
 538                         foreach my $node (@gonenodes) {
 539                                 next if $node->dxchan == $DXProt::me;
 540                                 broadcast_ak1a(pc21($node->call, 'Gone, re-init') , $self) unless $self->{isolate};
 541                                 $node->del();
 542                         }
 543                         $self->send_local_config();
 544                         $self->send(pc20());
 545                         return;             # we don't pass these on
 546                 }
 547
 548                 if ($pcno == 19) {              # incoming cluster list
 549                         my $i;
 550                         my $newline = "PC19^";
 551                         for ($i = 1; $i < $#field-1; $i += 4) {
 552                                 my $here = $field[$i];
 553                                 my $call = uc $field[$i+1];
 554                                 my $confmode = $field[$i+2];
 555                                 my $ver = $field[$i+3];
 556
 557                                 $ver = 5400 if !$ver && $allowzero;
 558
 559                                 # now check the call over
 560                                 my $node = DXCluster->get_exact($call);
 561                                 if ($node) {
 562                                         my $dxchan;
 563                                         if (($dxchan = DXChannel->get($call)) && $dxchan != $self) {
 564                                                 dbg('chan', "LOOP: $call connected locally");
 565                                         }
 566                                     if ($node->dxchan != $self) {
 567                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 568                                                 next;
 569                                         }
 570                                         dbg('chan', "already have $call");
 571                                         next;
 572                                 }
 573
 574                                 # check for sane parameters
 575                                 next if $ver < 5000; # only works with version 5 software
 576                                 next if length $call < 3; # min 3 letter callsigns
 577
 578                                 # add it to the nodes table and outgoing line
 579                                 $newline .= "$here^$call^$confmode^$ver^";
 580                                 DXNode->new($self, $call, $confmode, $here, $ver);
 581
 582                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 583                                 my $mref = DXMsg::get_busy($call);
 584                                 $mref->stop_msg($call) if $mref;
 585
 586                                 # add this station to the user database, if required (don't remove SSID from nodes)
 587                                 my $user = DXUser->get_current($call);
 588                                 if (!$user) {
 589                                         $user = DXUser->new($call);
 590                                         $user->sort('A');
 591                                         $user->priv(1);                   # I have relented and defaulted nodes
 592                                         $self->{priv} = 1;                # to user RCMDs allowed
 593                                         $user->homenode($call);
 594                                         $user->node($call);
 595                                 }
 596                                 $user->lastin($main::systime) unless DXChannel->get($call);
 597                                 $user->put;
 598                         }
 599
 600                         return if $newline eq "PC19^";
 601
 602                         # add hop count
 603                         $newline .=  get_hops(19) . "^";
 604                         $line = $newline;
 605                         last SWITCH;
 606                 }
 607
 608                 if ($pcno == 20) {              # send local configuration
 609                         $self->send_local_config();
 610                         $self->send(pc22());
 611                         $self->state('normal');
 612                         return;
 613                 }
 614
 615                 if ($pcno == 21) {              # delete a cluster from the list
 616                         my $call = uc $field[1];
 617                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 618                                 my $node = DXCluster->get_exact($call);
 619                                 if ($node) {
 620                                         if ($call eq $self->{call}) {
 621                                                 dbg('chan', "LOOP: Trying to disconnect myself with PC21");
 622                                                 return;
 623                                         }
 624                                         if ($node->dxchan != $self) {
 625                                                 dbg('chan', "LOOP: $call come in on wrong channel");
 626                                                 return;
 627                                         }
 628                                         my $dxchan;
 629                                         if ($dxchan = DXChannel->get($call)) {
 630                                                 dbg('chan', "LOOP: $call connected locally");
 631                                                 return;
 632                                         }
 633                                         $node->del();
 634                                 } else {
 635                                         dbg('chan', "$call not in table, dropped");
 636                                         return;
 637                                 }
 638                         }
 639                         last SWITCH;
 640                 }
 641
 642                 if ($pcno == 22) {
 643                         $self->state('normal');
 644                         return;
 645                 }
 646
 647                 if ($pcno == 23 || $pcno == 27) { # WWV info
 648
 649                         # route 'foreign' pc27s
 650                         if ($pcno == 27) {
 651                                 if ($field[8] ne $main::mycall) {
 652                                         $self->route($field[8], $line);
 653                                         return;
 654                                 }
 655                         }
 656
 657                         # do some de-duping
 658                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 659                         my $sfi = unpad($field[3]);
 660                         my $k = unpad($field[4]);
 661                         my $i = unpad($field[5]);
 662                         my ($r) = $field[6] =~ /R=(\d+)/;
 663                         $r = 0 unless $r;
 664                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 665                                 dbg('chan', "WWV Date ($field[1] $field[2]) out of range");
 666                                 return;
 667                         }
 668                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 669                                 dbg('chan', "Dup WWV Spot ignored\n");
 670                                 return;
 671                         }
 672                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 673
 674                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 675
 676                         my $rep;
 677                         eval {
 678                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 679                         };
 680 #                       dbg('local', "Local::wwv2 error $@") if $@;
 681                         return if $rep;
 682
 683                         # DON'T be silly and send on PC27s!
 684                         return if $pcno == 27;
 685
 686                         # broadcast to the eager world
 687                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 688                         return;
 689                 }
 690
 691                 if ($pcno == 24) {              # set here status
 692                         my $call = uc $field[1];
 693                         my $ref = DXCluster->get_exact($call);
 694                         $ref->here($field[2]) if $ref;
 695                         last SWITCH;
 696                 }
 697
 698                 if ($pcno == 25) {      # merge request
 699                         if ($field[1] ne $main::mycall) {
 700                                 $self->route($field[1], $line);
 701                                 return;
 702                         }
 703                         if ($field[2] eq $main::mycall) {
 704                                 dbg('chan', "Trying to merge to myself, ignored");
 705                                 return;
 706                         }
 707
 708                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[1]");
 709
 710                         # spots
 711                         if ($field[3] > 0) {
 712                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 713                                 my $in;
 714                                 foreach $in (@in) {
 715                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 716                                 }
 717                         }
 718
 719                         # wwv
 720                         if ($field[4] > 0) {
 721                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 722                                 my $in;
 723                                 foreach $in (@in) {
 724                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 725                                 }
 726                         }
 727                         return;
 728                 }
 729
 730                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 731                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 732                                 DXMsg::process($self, $line);
 733                         } else {
 734                                 $self->route($field[1], $line) unless $self->is_clx;
 735                         }
 736                         return;
 737                 }
 738
 739                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 740                         if ($field[1] eq $main::mycall) {
 741                                 my $ref = DXUser->get_current($field[2]);
 742                                 my $cref = DXCluster->get($field[2]);
 743                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[3]);
 744                                 unless (!$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 745                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 746                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 747                                                 my $oldpriv = $self->{priv};
 748                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 749                                                 my @in = (DXCommandmode::run_cmd($self, $field[3]));
 750                                                 $self->{priv} = $oldpriv;
 751                                                 for (@in) {
 752                                                         s/\s*$//og;
 753                                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:$_"));
 754                                                         Log('rcmd', 'out', $field[2], $_);
 755                                                 }
 756                                                 delete $self->{remotecmd};
 757                                         } else {
 758                                                 $self->send(pc35($main::mycall, $field[2], "$main::mycall:sorry...!"));
 759                                         }
 760                                 } else {
 761                                         $self->send(pc35($main::mycall, $field[2], "$main::mycall:your attempt is logged, Tut tut tut...!"));
 762                                 }
 763                         } else {
 764                                 my $ref = DXUser->get_current($field[1]);
 765                                 if ($ref && $ref->is_clx) {
 766                                         route($field[1], pc84($field[2], $field[1], $field[2], $field[3]));
 767                                 } else {
 768                                         $self->route($field[1], $line);
 769                                 }
 770                         }
 771                         return;
 772                 }
 773
 774                 if ($pcno == 35) {              # remote command replies
 775                         if ($field[1] eq $main::mycall) {
 776                                 my $s = $rcmds{$field[2]};
 777                                 if ($s) {
 778                                         my $dxchan = DXChannel->get($s->{call});
 779                                         $dxchan->send($field[3]) if $dxchan;
 780                                         delete $rcmds{$field[2]} if !$dxchan;
 781                                 } else {
 782                                         # send unsolicited ones to the sysop
 783                                         my $dxchan = DXChannel->get($main::myalias);
 784                                         $dxchan->send($field[3]) if $dxchan;
 785                                 }
 786                         } else {
 787                                 my $ref = DXUser->get_current($field[1]);
 788                                 if ($ref && $ref->is_clx) {
 789                                         route($field[1], pc85($field[2], $field[1], $field[2], $field[3]));
 790                                 } else {
 791                                         $self->route($field[1], $line);
 792                                 }
 793                         }
 794                         return;
 795                 }
 796
 797                 # for pc 37 see 44 onwards
 798
 799                 if ($pcno == 38) {              # node connected list from neighbour
 800                         return;
 801                 }
 802
 803                 if ($pcno == 39) {              # incoming disconnect
 804                         $self->disconnect(1);
 805                         return;
 806                 }
 807
 808                 if ($pcno == 41) {              # user info
 809                         # add this station to the user database, if required
 810                         my $user = DXUser->get_current($field[1]);
 811                         if (!$user) {
 812                                 # then try without an SSID
 813                                 $field[1] =~ s/-\d+$//o;
 814                                 $user = DXUser->get_current($field[1]);
 815                         }
 816                         $user = DXUser->new($field[1]) if !$user;
 817
 818                         if ($field[2] == 1) {
 819                                 $user->name($field[3]);
 820                         } elsif ($field[2] == 2) {
 821                                 $user->qth($field[3]);
 822                         } elsif ($field[2] == 3) {
 823                                 my ($lat, $long) = DXBearing::stoll($field[3]);
 824                                 $user->lat($lat);
 825                                 $user->long($long);
 826                                 $user->qra(DXBearing::lltoqra($lat, $long)) unless $user->qra && DXBearing::is_qra($user->qra);
 827                         } elsif ($field[2] == 4) {
 828                                 $user->homenode($field[3]);
 829                         }
 830                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 831                         $user->put;
 832                         last SWITCH;
 833                 }
 834                 if ($pcno == 43) {
 835                         last SWITCH;
 836                 }
 837                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 838                         DXDb::process($self, $line);
 839                         return;
 840                 }
 841
 842                 if ($pcno == 50) {              # keep alive/user list
 843                         my $node = DXCluster->get_exact($field[1]);
 844                         if ($node) {
 845                                 return unless $node->isa('DXNode');
 846                                 return unless $node->dxchan == $self;
 847                                 $node->update_users($field[2]);
 848                         }
 849                         last SWITCH;
 850                 }
 851
 852                 if ($pcno == 51) {              # incoming ping requests/answers
 853
 854                         # is it for us?
 855                         if ($field[1] eq $main::mycall) {
 856                                 my $flag = $field[3];
 857                                 if ($flag == 1) {
 858                                         $self->send(pc51($field[2], $field[1], '0'));
 859                                 } else {
 860                                         # it's a reply, look in the ping list for this one
 861                                         my $ref = $pings{$field[2]};
 862                                         if ($ref) {
 863                                                 my $tochan =  DXChannel->get($field[2]);
 864                                                 while (@$ref) {
 865                                                         my $r = shift @$ref;
 866                                                         my $dxchan = DXChannel->get($r->{call});
 867                                                         next unless $dxchan;
 868                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
 869                                                         if ($dxchan->is_user) {
 870                                                                 my $s = sprintf "%.2f", $t;
 871                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
 872                                                                 $dxchan->send($dxchan->msg('pingi', $field[2], $s, $ave))
 873                                                         } elsif ($dxchan->is_node) {
 874                                                                 if ($tochan) {
 875                                                                         $tochan->{nopings} = 2; # pump up the timer
 876                                                                         push @{$tochan->{pingtime}}, $t;
 877                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
 878                                                                         my $st;
 879                                                                         for (@{$tochan->{pingtime}}) {
 880                                                                                 $st += $_;
 881                                                                         }
 882                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
 883                                                                 }
 884                                                         }
 885                                                 }
 886                                         }
 887                                 }
 888                         } else {
 889                                 # route down an appropriate thingy
 890                                 $self->route($field[1], $line);
 891                         }
 892                         return;
 893                 }
 894
 895                 if ($pcno == 75) {              # dunno but route it
 896                         if ($field[1] ne $main::mycall) {
 897                                 $self->route($field[1], $line);
 898                         }
 899                         return;
 900                 }
 901
 902                 if ($pcno == 73) {  # WCY broadcasts
 903
 904                         # do some de-duping
 905                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 906                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 907                                 dbg('chan', "WCY Date ($field[1] $field[2]) out of range");
 908                                 return;
 909                         }
 910                         @field = map { unpad($_) } @field;
 911                         if (WCY::dup($d,@field[3..7])) {
 912                                 dbg('chan', "Dup WCY Spot ignored\n");
 913                                 return;
 914                         }
 915
 916                         my $wcy = WCY::update($d, @field[2..12]);
 917
 918                         my $rep;
 919                         eval {
 920                                 $rep = Local::wwv($self, @field[1..12]);
 921                         };
 922                         # dbg('local', "Local::wcy error $@") if $@;
 923                         return if $rep;
 924
 925                         # broadcast to the eager world
 926                         send_wcy_spot($self, $line, $d, @field[2..12]);
 927                         return;
 928                 }
 929
 930                 if ($pcno == 84) { # remote commands (incoming)
 931                         if ($field[1] eq $main::mycall) {
 932                                 my $ref = DXUser->get_current($field[2]);
 933                                 my $cref = DXCluster->get($field[2]);
 934                                 Log('rcmd', 'in', $ref->{priv}, $field[2], $field[4]);
 935                                 unless ($field[4] =~ /rcmd/i || !$cref || !$ref || $cref->mynode->call ne $ref->homenode) {    # not allowed to relay RCMDS!
 936                                         if ($ref->{priv}) {     # you have to have SOME privilege, the commands have further filtering
 937                                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
 938                                                 my $oldpriv = $self->{priv};
 939                                                 $self->{priv} = $ref->{priv};     # assume the user's privilege level
 940                                                 my @in = (DXCommandmode::run_cmd($self, $field[4]));
 941                                                 $self->{priv} = $oldpriv;
 942                                                 for (@in) {
 943                                                         s/\s*$//og;
 944                                                         $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:$_"));
 945                                                         Log('rcmd', 'out', $field[2], $_);
 946                                                 }
 947                                                 delete $self->{remotecmd};
 948                                         } else {
 949                                                 $self->send(pc85($main::mycall, $field[2], $field[3], "$main::mycall:sorry...!"));
 950                                         }
 951                                 } else {
 952                                         $self->send(pc85($main::mycall, $field[2], $field[3],"$main::mycall:your attempt is logged, Tut tut tut...!"));
 953                                 }
 954                         } else {
 955                                 my $ref = DXUser->get_current($field[1]);
 956                                 if ($ref && $ref->is_clx) {
 957                                         $self->route($field[1], $line);
 958                                 } else {
 959                                         route($field[1], pc34($field[2], $field[1], $field[4]));
 960                                 }
 961                         }
 962                         return;
 963                 }
 964
 965                 if ($pcno == 85) {              # remote command replies
 966                         if ($field[1] eq $main::mycall) {
 967                                 my $dxchan = DXChannel->get($field[3]);
 968                                 if ($dxchan) {
 969                                         $dxchan->send($field[4]);
 970                                 } else {
 971                                         my $s = $rcmds{$field[2]};
 972                                         if ($s) {
 973                                                 $dxchan = DXChannel->get($s->{call});
 974                                                 $dxchan->send($field[4]) if $dxchan;
 975                                                 delete $rcmds{$field[2]} if !$dxchan;
 976                                         } else {
 977                                                 # send unsolicited ones to the sysop
 978                                                 my $dxchan = DXChannel->get($main::myalias);
 979                                                 $dxchan->send($field[4]) if $dxchan;
 980                                         }
 981                                 }
 982                         } else {
 983                                 my $ref = DXUser->get_current($field[1]);
 984                                 if ($ref && $ref->is_clx) {
 985                                         $self->route($field[1], $line);
 986                                 } else {
 987                                         route($field[1], pc35($field[2], $field[1], $field[4]));
 988                                 }
 989                         }
 990                         return;
 991                 }
 992         }
 993
 994         # if get here then rebroadcast the thing with its Hop count decremented (if
 995         # there is one). If it has a hop count and it decrements to zero then don't
 996         # rebroadcast it.
 997         #
 998         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
 999         #        REBROADCAST!!!!
1000         #
1001
1002         unless ($self->{isolate}) {
1003                 broadcast_ak1a($line, $self); # send it to everyone but me
1004         }
1005 }
1006
1007 #
1008 # This is called from inside the main cluster processing loop and is used
1009 # for despatching commands that are doing some long processing job
1010 #
1011 sub process
1012 {
1013         my $t = time;
1014         my @dxchan = DXChannel->get_all();
1015         my $dxchan;
1016
1017         foreach $dxchan (@dxchan) {
1018                 next unless $dxchan->is_node();
1019                 next if $dxchan == $me;
1020
1021                 # send a pc50 out on this channel
1022                 if ($t >= $dxchan->pc50_t + $DXProt::pc50_interval) {
1023                         $dxchan->send(pc50(scalar DXChannel::get_all_users));
1024                         $dxchan->pc50_t($t);
1025                 }
1026
1027                 # send a ping out on this channel
1028                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1029                         if ($dxchan->{nopings} <= 0) {
1030                                 $dxchan->disconnect;
1031                         } else {
1032                                 addping($main::mycall, $dxchan->call);
1033                                 $dxchan->{nopings} -= 1;
1034                                 $dxchan->{lastping} = $t;
1035                         }
1036                 }
1037         }
1038
1039         my $key;
1040         my $val;
1041         my $cutoff;
1042         if ($main::systime - 3600 > $last_hour) {
1043 #               Spot::process;
1044 #               Geomag::process;
1045 #               AnnTalk::process;
1046                 $last_hour = $main::systime;
1047         }
1048 }
1049
1050 #
1051 # finish up a pc context
1052 #
1053 sub finish
1054 {
1055         my $self = shift;
1056         my $call = $self->call;
1057         my $conn = shift;
1058         my $ref = DXCluster->get_exact($call);
1059
1060         # unbusy and stop and outgoing mail
1061         my $mref = DXMsg::get_busy($call);
1062         $mref->stop_msg($call) if $mref;
1063
1064         # broadcast to all other nodes that all the nodes connected to via me are gone
1065         my @gonenodes = map { $_->dxchan == $self ? $_ : () } DXNode::get_all();
1066         my $node;
1067
1068         foreach $node (@gonenodes) {
1069                 next if $node->call eq $call;
1070                 broadcast_ak1a(pc21($node->call, 'Gone') , $self) unless $self->{isolate};
1071                 $node->del();
1072         }
1073
1074         # remove outstanding pings
1075         delete $pings{$call};
1076
1077         # now broadcast to all other ak1a nodes that I have gone
1078         broadcast_ak1a(pc21($call, 'Gone.'), $self) unless $self->{isolate};
1079
1080         # I was the last node visited
1081     $self->user->node($main::mycall);
1082
1083         # send info to all logged in thingies
1084         $self->tell_login('logoutn');
1085
1086         Log('DXProt', $call . " Disconnected");
1087         $ref->del() if $ref;
1088 }
1089
1090 #
1091 # some active measures
1092 #
1093 sub send_dx_spot
1094 {
1095         my $self = shift;
1096         my $line = shift;
1097         my @dxchan = DXChannel->get_all();
1098         my $dxchan;
1099
1100         # send it if it isn't the except list and isn't isolated and still has a hop count
1101         # taking into account filtering and so on
1102         foreach $dxchan (@dxchan) {
1103                 my $routeit;
1104                 my ($filter, $hops);
1105
1106                 if ($dxchan->{spotfilter}) {
1107                     ($filter, $hops) = Filter::it($dxchan->{spotfilter}, @_, $self->{call} );
1108                         next unless $filter;
1109                 }
1110
1111                 if ($dxchan->is_node) {
1112                         next if $dxchan == $self;
1113                         if ($hops) {
1114                                 $routeit = $line;
1115                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1116                         } else {
1117                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1118                                 next unless $routeit;
1119                         }
1120                         if ($filter) {
1121                                 $dxchan->send($routeit) if $routeit;
1122                         } else {
1123                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1124                         }
1125                 } elsif ($dxchan->is_user && $dxchan->{dx}) {
1126                         my $buf = Spot::formatb($dxchan->{user}->wantgrid, $_[0], $_[1], $_[2], $_[3], $_[4]);
1127                         $buf .= "\a\a" if $dxchan->{beep};
1128                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1129                                 $dxchan->send($buf);
1130                         } else {
1131                                 $dxchan->delay($buf);
1132                         }
1133                 }
1134         }
1135 }
1136
1137 sub send_wwv_spot
1138 {
1139         my $self = shift;
1140         my $line = shift;
1141         my @dxchan = DXChannel->get_all();
1142         my $dxchan;
1143
1144         # send it if it isn't the except list and isn't isolated and still has a hop count
1145         # taking into account filtering and so on
1146         foreach $dxchan (@dxchan) {
1147                 my $routeit;
1148                 my ($filter, $hops);
1149
1150                 if ($dxchan->{wwvfilter}) {
1151                          ($filter, $hops) = Filter::it($dxchan->{wwvfilter}, @_, $self->{call} );
1152                          next unless $filter;
1153                 }
1154                 if ($dxchan->is_node) {
1155                         next if $dxchan == $self;
1156                         if ($hops) {
1157                                 $routeit = $line;
1158                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1159                         } else {
1160                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1161                                 next unless $routeit;
1162                         }
1163                         if ($filter) {
1164                                 $dxchan->send($routeit) if $routeit;
1165                         } else {
1166                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1167
1168                         }
1169                 } elsif ($dxchan->is_user && $dxchan->{wwv}) {
1170                         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1171                         $buf .= "\a\a" if $dxchan->{beep};
1172                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1173                                 $dxchan->send($buf);
1174                         } else {
1175                                 $dxchan->delay($buf);
1176                         }
1177                 }
1178         }
1179 }
1180
1181 sub send_wcy_spot
1182 {
1183         my $self = shift;
1184         my $line = shift;
1185         my @dxchan = DXChannel->get_all();
1186         my $dxchan;
1187
1188         # send it if it isn't the except list and isn't isolated and still has a hop count
1189         # taking into account filtering and so on
1190         foreach $dxchan (@dxchan) {
1191                 my $routeit;
1192                 my ($filter, $hops);
1193
1194                 if ($dxchan->{wcyfilter}) {
1195                          ($filter, $hops) = Filter::it($dxchan->{wcyfilter}, @_, $self->{call} );
1196                          next unless $filter;
1197                 }
1198                 if ($dxchan->is_clx || $dxchan->is_spider) {
1199                         next if $dxchan == $self;
1200                         if ($hops) {
1201                                 $routeit = $line;
1202                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1203                         } else {
1204                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1205                                 next unless $routeit;
1206                         }
1207                         if ($filter) {
1208                                 $dxchan->send($routeit) if $routeit;
1209                         } else {
1210                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1211                         }
1212                 } elsif ($dxchan->is_user && $dxchan->{wcy}) {
1213                         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1214                         $buf .= "\a\a" if $dxchan->{beep};
1215                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1216                                 $dxchan->send($buf);
1217                         } else {
1218                                 $dxchan->delay($buf);
1219                         }
1220                 }
1221         }
1222 }
1223
1224 # send an announce
1225 sub send_announce
1226 {
1227         my $self = shift;
1228         my $line = shift;
1229         my @dxchan = DXChannel->get_all();
1230         my $dxchan;
1231         my $text = unpad($_[2]);
1232         my $target;
1233         my $to = 'To ';
1234
1235         if ($_[3] eq '*') {     # sysops
1236                 $target = "SYSOP";
1237         } elsif ($_[3] gt ' ') { # speciality list handling
1238                 my ($name) = split /\./, $_[3];
1239                 $target = "$name"; # put the rest in later (if bothered)
1240         }
1241
1242         if ($_[5] eq '1') {
1243                 $target = "WX";
1244                 $to = '';
1245         }
1246         $target = "All" if !$target;
1247
1248         Log('ann', $target, $_[0], $text);
1249
1250         # send it if it isn't the except list and isn't isolated and still has a hop count
1251         # taking into account filtering and so on
1252         foreach $dxchan (@dxchan) {
1253                 my $routeit;
1254                 my ($filter, $hops);
1255
1256                 if ($dxchan->{annfilter}) {
1257                         ($filter, $hops) = Filter::it($dxchan->{annfilter}, @_, $self->{call} );
1258                         next unless $filter;
1259                 }
1260                 if ($dxchan->is_node && $_[1] ne $main::mycall) {  # i.e not specifically routed to me
1261                         next if $dxchan == $self;
1262                         if ($hops) {
1263                                 $routeit = $line;
1264                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1265                         } else {
1266                                 $routeit = adjust_hops($dxchan, $line);  # adjust its hop count by node name
1267                                 next unless $routeit;
1268                         }
1269                         if ($filter) {
1270                                 $dxchan->send($routeit) if $routeit;
1271                         } else {
1272                                 $dxchan->send($routeit) unless $dxchan->{isolate} || $self->{isolate};
1273
1274                         }
1275                 } elsif ($dxchan->is_user) {
1276                         unless ($dxchan->{ann}) {
1277                                 next if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1278                         }
1279                         next if $target eq 'SYSOP' && $dxchan->{priv} < 5;
1280                         my $buf = "$to$target de $_[0]: $text";
1281                         $buf .= "\a\a" if $dxchan->{beep};
1282                         if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1283                                 $dxchan->send($buf);
1284                         } else {
1285                                 $dxchan->delay($buf);
1286                         }
1287                 }
1288         }
1289 }
1290
1291 sub send_local_config
1292 {
1293         my $self = shift;
1294         my $n;
1295         my @nodes;
1296         my @localnodes;
1297         my @remotenodes;
1298
1299         # send our nodes
1300         if ($self->{isolate}) {
1301                 @localnodes = (DXCluster->get_exact($main::mycall));
1302         } else {
1303                 # create a list of all the nodes that are not connected to this connection
1304                 # and are not themselves isolated, this to make sure that isolated nodes
1305         # don't appear outside of this node
1306                 @nodes = DXNode::get_all();
1307                 @nodes = grep { $_->{call} ne $main::mycall } @nodes;
1308                 @nodes = grep { $_->dxchan != $self } @nodes if @nodes;
1309                 @nodes = grep { !$_->dxchan->{isolate} } @nodes if @nodes;
1310                 @localnodes = grep { $_->dxchan->{call} eq $_->{call} } @nodes if @nodes;
1311                 unshift @localnodes, DXCluster->get_exact($main::mycall);
1312                 @remotenodes = grep { $_->dxchan->{call} ne $_->{call} } @nodes if @nodes;
1313         }
1314
1315         my @s = $me->pc19(@localnodes, @remotenodes);
1316         for (@s) {
1317                 my $routeit = adjust_hops($self, $_);
1318                 $self->send($routeit) if $routeit;
1319         }
1320
1321         # get all the users connected on the above nodes and send them out
1322         foreach $n (@localnodes, @remotenodes) {
1323                 my @users = values %{$n->list};
1324                 my @s = pc16($n, @users);
1325                 for (@s) {
1326                         my $routeit = adjust_hops($self, $_);
1327                         $self->send($routeit) if $routeit;
1328                 }
1329         }
1330 }
1331
1332 #
1333 # route a message down an appropriate interface for a callsign
1334 #
1335 # is called route(to, pcline);
1336 #
1337 sub route
1338 {
1339         my ($self, $call, $line) = @_;
1340         my $cl = DXCluster->get_exact($call);
1341         if ($cl) {       # don't route it back down itself
1342                 if (ref $self && $call eq $self->{call}) {
1343                         dbg('chan', "Trying to route back to source, dropped");
1344                         return;
1345                 }
1346                 my $hops;
1347                 my $dxchan = $cl->{dxchan};
1348                 if ($dxchan) {
1349                         my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1350                         if ($routeit) {
1351                                 $dxchan->send($routeit) if $dxchan;
1352                         }
1353                 }
1354         }
1355 }
1356
1357 # broadcast a message to all clusters taking into account isolation
1358 # [except those mentioned after buffer]
1359 sub broadcast_ak1a
1360 {
1361         my $s = shift;                          # the line to be rebroadcast
1362         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1363         my @dxchan = DXChannel::get_all_nodes();
1364         my $dxchan;
1365
1366         # send it if it isn't the except list and isn't isolated and still has a hop count
1367         foreach $dxchan (@dxchan) {
1368                 next if grep $dxchan == $_, @except;
1369                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1370                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1371         }
1372 }
1373
1374 # broadcast a message to all clusters ignoring isolation
1375 # [except those mentioned after buffer]
1376 sub broadcast_all_ak1a
1377 {
1378         my $s = shift;                          # the line to be rebroadcast
1379         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1380         my @dxchan = DXChannel::get_all_nodes();
1381         my $dxchan;
1382
1383         # send it if it isn't the except list and isn't isolated and still has a hop count
1384         foreach $dxchan (@dxchan) {
1385                 next if grep $dxchan == $_, @except;
1386                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1387                 $dxchan->send($routeit);
1388         }
1389 }
1390
1391 # broadcast to all users
1392 # storing the spot or whatever until it is in a state to receive it
1393 sub broadcast_users
1394 {
1395         my $s = shift;                          # the line to be rebroadcast
1396         my $sort = shift;           # the type of transmission
1397         my $fref = shift;           # a reference to an object to filter on
1398         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1399         my @dxchan = DXChannel::get_all_users();
1400         my $dxchan;
1401         my @out;
1402
1403         foreach $dxchan (@dxchan) {
1404                 next if grep $dxchan == $_, @except;
1405                 push @out, $dxchan;
1406         }
1407         broadcast_list($s, $sort, $fref, @out);
1408 }
1409
1410 # broadcast to a list of users
1411 sub broadcast_list
1412 {
1413         my $s = shift;
1414         my $sort = shift;
1415         my $fref = shift;
1416         my $dxchan;
1417
1418         foreach $dxchan (@_) {
1419                 my $filter = 1;
1420
1421                 if ($sort eq 'dx') {
1422                     next unless $dxchan->{dx};
1423                         ($filter) = Filter::it($dxchan->{spotfilter}, @{$fref}) if ref $fref;
1424                         next unless $filter;
1425                 }
1426                 next if $sort eq 'ann' && !$dxchan->{ann};
1427                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1428                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1429                 next if $sort eq 'wx' && !$dxchan->{wx};
1430
1431                 $s =~ s/\a//og unless $dxchan->{beep};
1432
1433                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1434                         $dxchan->send($s);
1435                 } else {
1436                         $dxchan->delay($s);
1437                 }
1438         }
1439 }
1440
1441
1442 #
1443 # obtain the hops from the list for this callsign and pc no
1444 #
1445
1446 sub get_hops
1447 {
1448         my $pcno = shift;
1449         my $hops = $DXProt::hopcount{$pcno};
1450         $hops = $DXProt::def_hopcount if !$hops;
1451         return "H$hops";
1452 }
1453
1454 #
1455 # adjust the hop count on a per node basis using the user loadable
1456 # hop table if available or else decrement an existing one
1457 #
1458
1459 sub adjust_hops
1460 {
1461         my $self = shift;
1462         my $s = shift;
1463         my $call = $self->{call};
1464         my $hops;
1465
1466         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1467                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1468                 confess "$call called adjust_hops with '$s'" unless $pcno;
1469                 my $ref = $nodehops{$call} if %nodehops;
1470                 if ($ref) {
1471                         my $newhops = $ref->{$pcno};
1472                         return "" if defined $newhops && $newhops == 0;
1473                         $newhops = $ref->{default} unless $newhops;
1474                         return "" if defined $newhops && $newhops == 0;
1475                         $newhops = $hops if !$newhops;
1476                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1477                 } else {
1478                         # simply decrement it
1479                         $hops--;
1480                         return "" if !$hops;
1481                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1482                 }
1483         }
1484         return $s;
1485 }
1486
1487 #
1488 # load hop tables
1489 #
1490 sub load_hops
1491 {
1492         my $self = shift;
1493         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1494         do "$main::data/hop_table.pl";
1495         return $@ if $@;
1496         return 0;
1497 }
1498
1499
1500 # add a ping request to the ping queues
1501 sub addping
1502 {
1503         my ($from, $to) = @_;
1504         my $ref = $pings{$to} || [];
1505         my $r = {};
1506         $r->{call} = $from;
1507         $r->{t} = [ gettimeofday ];
1508         route(undef, $to, pc51($to, $main::mycall, 1));
1509         push @$ref, $r;
1510         $pings{$to} = $ref;
1511 }
1512
1513 # add a rcmd request to the rcmd queues
1514 sub addrcmd
1515 {
1516         my ($self, $to, $cmd) = @_;
1517
1518         my $r = {};
1519         $r->{call} = $self->{call};
1520         $r->{t} = $main::systime;
1521         $r->{cmd} = $cmd;
1522         $rcmds{$to} = $r;
1523
1524         my $ref = DXCluster->get_exact($to);
1525     if ($ref && $ref->dxchan && $ref->dxchan->is_clx) {
1526                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1527         } else {
1528                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1529         }
1530 }
1531
1532 sub disconnect
1533 {
1534         my $self = shift;
1535         my $nopc39 = shift;
1536
1537         if ($self->{conn} && !$nopc39) {
1538                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1539         }
1540
1541         $self->SUPER::disconnect;
1542 }
1543
1544
1545 #
1546 # send a talk message to this thingy
1547 #
1548 sub talk
1549 {
1550         my ($self, $from, $to, $via, $line) = @_;
1551
1552         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1553         $self->send(DXProt::pc10($from, $to, $via, $line));
1554         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1555 }
1556 1;
1557 __END__