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 DXProtVars;
  19 use DXCommandmode;
  20 use DXLog;
  21 use Spot;
  22 use DXProtout;
  23 use DXDebug;
  24 use Filter;
  25 use Local;
  26 use DXDb;
  27 use AnnTalk;
  28 use Geomag;
  29 use WCY;
  30 use Time::HiRes qw(gettimeofday tv_interval);
  31 use BadWords;
  32 use DXHash;
  33 use Route;
  34 use Route::Node;
  35
  36 use strict;
  37
  38 use vars qw($VERSION $BRANCH);
  39 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
  40 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/ ) || 0;
  41 $main::build += $VERSION;
  42 $main::branch += $BRANCH;
  43
  44 use vars qw($me $pc11_max_age $pc23_max_age $last_pc50
  45                         $last_hour $last10 %eph  %pings %rcmds
  46                         %nodehops $baddx $badspotter $badnode $censorpc
  47                         $allowzero $decode_dk0wcy $send_opernam @checklist);
  48
  49 $me = undef;                                    # the channel id for this cluster
  50 $pc11_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc11
  51 $pc23_max_age = 1*3600;                 # the maximum age for an incoming 'real-time' pc23
  52
  53 $last_hour = time;                              # last time I did an hourly periodic update
  54 %pings = ();                    # outstanding ping requests outbound
  55 %rcmds = ();                    # outstanding rcmd requests outbound
  56 %nodehops = ();                 # node specific hop control
  57 $censorpc = 1;                                  # Do a BadWords::check on text fields and reject things
  58                                                                 # loads of 'bad things'
  59 $baddx = new DXHash "baddx";
  60 $badspotter = new DXHash "badspotter";
  61 $badnode = new DXHash "badnode";
  62 $last10 = $last_pc50 = time;
  63
  64 @checklist =
  65 (
  66  [ qw(c c m bp bc c) ],                 # pc10
  67  [ qw(f m d t m c c h) ],               # pc11
  68  [ qw(c bc m bp bm p h) ],              # pc12
  69  [ qw(c h) ],                                   #
  70  [ qw(c h) ],                                   #
  71  [ qw(c m h) ],                                 #
  72  undef ,                                                # pc16 has to be validated manually
  73  [ qw(c c h) ],                                 # pc17
  74  [ qw(m n) ],                                   # pc18
  75  undef ,                                                # pc19 has to be validated manually
  76  undef ,                                                # pc20 no validation
  77  [ qw(c m h) ],                                 # pc21
  78  undef ,                                                # pc22 no validation
  79  [ qw(d n n n n m c c h) ],             # pc23
  80  [ qw(c p h) ],                                 # pc24
  81  [ qw(c c n n) ],                               # pc25
  82  [ qw(f m d t m c c bc) ],              # pc26
  83  [ qw(d n n n n m c c bc) ],    # pc27
  84  [ qw(c c m c d t p m bp n p bp bc) ], # pc28
  85  [ qw(c c n m) ],                               # pc29
  86  [ qw(c c n) ],                                 # pc30
  87  [ qw(c c n) ],                                 # pc31
  88  [ qw(c c n) ],                                 # pc32
  89  [ qw(c c n) ],                                 # pc33
  90  [ qw(c c m) ],                                 # pc34
  91  [ qw(c c m) ],                                 # pc35
  92  [ qw(c c m) ],                                 # pc36
  93  [ qw(c c n m) ],                               # pc37
  94  undef,                                                 # pc38 not interested
  95  [ qw(c m) ],                                   # pc39
  96  [ qw(c c m p n) ],                             # pc40
  97  [ qw(c n m h) ],                               # pc41
  98  [ qw(c c n) ],                                 # pc42
  99  undef,                                                 # pc43 don't handle it
 100  [ qw(c c n m m c) ],                   # pc44
 101  [ qw(c c n m) ],                               # pc45
 102  [ qw(c c n) ],                                 # pc46
 103  undef,                                                 # pc47
 104  undef,                                                 # pc48
 105  [ qw(c m h) ],                                 # pc49
 106  [ qw(c n h) ],                                 # pc50
 107  [ qw(c c n) ],                                 # pc51
 108  undef,
 109  undef,
 110  undef,
 111  undef,
 112  undef,
 113  undef,
 114  undef,
 115  undef,
 116  undef,                                                 # pc60
 117  undef,
 118  undef,
 119  undef,
 120  undef,
 121  undef,
 122  undef,
 123  undef,
 124  undef,
 125  undef,
 126  undef,                                                 # pc70
 127  undef,
 128  undef,
 129  [ qw(d n n n n n n m m m c c h) ],     # pc73
 130  undef,
 131  undef,
 132  undef,
 133  undef,
 134  undef,
 135  undef,
 136  undef,                                                 # pc80
 137  undef,
 138  undef,
 139  undef,
 140  [ qw(c c c m) ],                               # pc84
 141  [ qw(c c c m) ],                               # pc85
 142 );
 143
 144 # use the entry in the check list to check the field list presented
 145 # return OK if line NOT in check list (for now)
 146 sub check
 147 {
 148         my $n = shift;
 149         $n -= 10;
 150         return 0 if $n < 0 || $n > @checklist;
 151         my $ref = $checklist[$n];
 152         return 0 unless ref $ref;
 153
 154         my $i;
 155         shift;    # not interested in the first field
 156         for ($i = 0; $i < @$ref; $i++) {
 157                 my ($blank, $act) = $$ref[$i] =~ /^(b?)(\w)$/;
 158                 return 0 unless $act;
 159                 next if $blank && $_[$i] =~ /^[ \*]$/;
 160                 if ($act eq 'c') {
 161                         return $i+1 unless is_callsign($_[$i]);
 162                 } elsif ($act eq 'm') {
 163                         return $i+1 unless is_pctext($_[$i]);
 164                 } elsif ($act eq 'p') {
 165                         return $i+1 unless is_pcflag($_[$i]);
 166                 } elsif ($act eq 'f') {
 167                         return $i+1 unless is_freq($_[$i]);
 168                 } elsif ($act eq 'n') {
 169                         return $i+1 unless $_[$i] =~ /^[\d ]+$/;
 170                 } elsif ($act eq 'h') {
 171                         return $i+1 unless $_[$i] =~ /^H\d\d?$/;
 172                 } elsif ($act eq 'd') {
 173                         return $i+1 unless $_[$i] =~ /^\s*\d+-\w\w\w-[12][90]\d\d$/;
 174                 } elsif ($act eq 't') {
 175                         return $i+1 unless $_[$i] =~ /^[012]\d[012345]\dZ$/;
 176                 }
 177         }
 178         return 0;
 179 }
 180
 181 sub init
 182 {
 183         my $user = DXUser->get($main::mycall);
 184         $DXProt::myprot_version += $main::version*100;
 185         $me = DXProt->new($main::mycall, 0, $user);
 186         $me->{here} = 1;
 187         $me->{state} = "indifferent";
 188         do "$main::data/hop_table.pl" if -e "$main::data/hop_table.pl";
 189         confess $@ if $@;
 190         $me->{sort} = 'S';    # S for spider
 191         $me->{priv} = 9;
 192 #       $Route::Node::me->adddxchan($me);
 193 }
 194
 195 #
 196 # obtain a new connection this is derived from dxchannel
 197 #
 198
 199 sub new
 200 {
 201         my $self = DXChannel::alloc(@_);
 202
 203         # add this node to the table, the values get filled in later
 204         my $pkg = shift;
 205         my $call = shift;
 206         $main::routeroot->add($call, '0000', Route::here(1)) if $call ne $main::mycall;
 207
 208         return $self;
 209 }
 210
 211 # this is how a pc connection starts (for an incoming connection)
 212 # issue a PC38 followed by a PC18, then wait for a PC20 (remembering
 213 # all the crap that comes between).
 214 sub start
 215 {
 216         my ($self, $line, $sort) = @_;
 217         my $call = $self->{call};
 218         my $user = $self->{user};
 219
 220         # remember type of connection
 221         $self->{consort} = $line;
 222         $self->{outbound} = $sort eq 'O';
 223         my $priv = $user->priv;
 224         $priv = $user->priv(1) unless $priv;
 225         $self->{priv} = $priv;     # other clusters can always be 'normal' users
 226         $self->{lang} = $user->lang || 'en';
 227         $self->{isolate} = $user->{isolate};
 228         $self->{consort} = $line;       # save the connection type
 229         $self->{here} = 1;
 230         $self->{width} = 80;
 231
 232         # get the output filters
 233         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'node_default', 0);
 234         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'node_default', 0);
 235         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'node_default', 0);
 236         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'node_default', 0) ;
 237         $self->{routefilter} = Filter::read_in('route', $call, 0) || Filter::read_in('route', 'node_default', 0) unless $self->{isolate} ;
 238
 239
 240         # get the INPUT filters (these only pertain to Clusters)
 241         $self->{inspotsfilter} = Filter::read_in('spots', $call, 1) || Filter::read_in('spots', 'node_default', 1);
 242         $self->{inwwvfilter} = Filter::read_in('wwv', $call, 1) || Filter::read_in('wwv', 'node_default', 1);
 243         $self->{inwcyfilter} = Filter::read_in('wcy', $call, 1) || Filter::read_in('wcy', 'node_default', 1);
 244         $self->{inannfilter} = Filter::read_in('ann', $call, 1) || Filter::read_in('ann', 'node_default', 1);
 245         $self->{inroutefilter} = Filter::read_in('route', $call, 1) || Filter::read_in('route', 'node_default', 1) unless $self->{isolate};
 246
 247         # set unbuffered and no echo
 248         $self->send_now('B',"0");
 249         $self->send_now('E',"0");
 250
 251         # ping neighbour node stuff
 252         my $ping = $user->pingint;
 253         $ping = 5*60 unless defined $ping;
 254         $self->{pingint} = $ping;
 255         $self->{nopings} = $user->nopings || 2;
 256         $self->{pingtime} = [ ];
 257         $self->{pingave} = 999;
 258         $self->{lastping} = $main::systime;
 259
 260         # send initialisation string
 261         unless ($self->{outbound}) {
 262                 $self->send(pc18());
 263         }
 264
 265         $self->state('init');
 266         $self->{pc50_t} = $main::systime;
 267
 268         # send info to all logged in thingies
 269         $self->tell_login('loginn');
 270
 271         Log('DXProt', "$call connected");
 272 }
 273
 274 #
 275 # This is the normal pcxx despatcher
 276 #
 277 sub normal
 278 {
 279         my ($self, $line) = @_;
 280         my @field = split /\^/, $line;
 281         return unless @field;
 282
 283         pop @field if $field[-1] eq '~';
 284
 285 #       print join(',', @field), "\n";
 286
 287
 288         # process PC frames, this will fail unless the frame starts PCnn
 289         my ($pcno) = $field[0] =~ /^PC(\d\d)/; # just get the number
 290         return unless $pcno;
 291         return if $pcno < 10 || $pcno > 99;
 292
 293         # check for and dump bad protocol messages
 294         my $n = check($pcno, @field);
 295         if ($n) {
 296                 dbg("PCPROT: bad field $n, dumped (" . parray($checklist[$pcno-10]) . ")") if isdbg('chanerr');
 297                 return;
 298         }
 299
 300         # local processing 1
 301         my $pcr;
 302         eval {
 303                 $pcr = Local::pcprot($self, $pcno, @field);
 304         };
 305 #       dbg("Local::pcprot error $@") if isdbg('local') if $@;
 306         return if $pcr;
 307
 308  SWITCH: {
 309                 if ($pcno == 10) {              # incoming talk
 310
 311                         # will we allow it at all?
 312                         if ($censorpc) {
 313                                 my @bad;
 314                                 if (@bad = BadWords::check($field[3])) {
 315                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 316                                         return;
 317                                 }
 318                         }
 319
 320                         # is it for me or one of mine?
 321                         my ($to, $via, $call, $dxchan);
 322                         if ($field[5] gt ' ') {
 323                                 $call = $via = $field[2];
 324                                 $to = $field[5];
 325                         } else {
 326                                 $call = $to = $field[2];
 327                         }
 328                         $dxchan = DXChannel->get($main::myalias) if $call eq $main::mycall;
 329                         $dxchan = DXChannel->get($call) unless $dxchan;
 330                         if ($dxchan && $dxchan->is_user) {
 331                                 $field[3] =~ s/\%5E/^/g;
 332                                 $dxchan->talk($field[1], $to, $via, $field[3]);
 333                         } else {
 334                                 $self->route($field[2], $line); # relay it on its way
 335                         }
 336                         return;
 337                 }
 338
 339                 if ($pcno == 11 || $pcno == 26) { # dx spot
 340
 341                         # route 'foreign' pc26s
 342                         if ($pcno == 26) {
 343                                 if ($field[7] ne $main::mycall) {
 344                                         $self->route($field[7], $line);
 345                                         return;
 346                                 }
 347                         }
 348
 349                         # if this is a 'nodx' node then ignore it
 350                         if ($badnode->in($field[7])) {
 351                                 dbg("PCPROT: Bad Node, dropped") if isdbg('chanerr');
 352                                 return;
 353                         }
 354
 355                         # if this is a 'bad spotter' user then ignore it
 356                         if ($badspotter->in($field[6])) {
 357                                 dbg("PCPROT: Bad Spotter, dropped") if isdbg('chanerr');
 358                                 return;
 359                         }
 360
 361                         # convert the date to a unix date
 362                         my $d = cltounix($field[3], $field[4]);
 363                         # bang out (and don't pass on) if date is invalid or the spot is too old (or too young)
 364                         if (!$d || ($pcno == 11 && ($d < $main::systime - $pc11_max_age || $d > $main::systime + 900))) {
 365                                 dbg("PCPROT: Spot ignored, invalid date or out of range ($field[3] $field[4])\n") if isdbg('chanerr');
 366                                 return;
 367                         }
 368
 369                         # is it 'baddx'
 370                         if ($baddx->in($field[2])) {
 371                                 dbg("PCPROT: Bad DX spot, ignored") if isdbg('chanerr');
 372                                 return;
 373                         }
 374
 375                         # do some de-duping
 376                         $field[5] =~ s/^\s+//;      # take any leading blanks off
 377                         $field[2] = unpad($field[2]);   # take off leading and trailing blanks from spotted callsign
 378                         if ($field[2] =~ /BUST\w*$/) {
 379                                 dbg("PCPROT: useless 'BUSTED' spot") if isdbg('chanerr');
 380                                 return;
 381                         }
 382                         if (Spot::dup($field[1], $field[2], $d, $field[5])) {
 383                                 dbg("PCPROT: Duplicate Spot ignored\n") if isdbg('chanerr');
 384                                 return;
 385                         }
 386                         if ($censorpc) {
 387                                 my @bad;
 388                                 if (@bad = BadWords::check($field[5])) {
 389                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 390                                         return;
 391                                 }
 392                         }
 393
 394                         my @spot = Spot::prepare($field[1], $field[2], $d, $field[5], $field[6], $field[7]);
 395                         # global spot filtering on INPUT
 396                         if ($self->{inspotsfilter}) {
 397                                 my ($filter, $hops) = $self->{inspotsfilter}->it(@spot);
 398                                 unless ($filter) {
 399                                         dbg("PCPROT: Rejected by input spot filter") if isdbg('chanerr');
 400                                         return;
 401                                 }
 402                         }
 403
 404                         # add it
 405                         Spot::add(@spot);
 406
 407             #
 408                         # @spot at this point contains:-
 409             # freq, spotted call, time, text, spotter, spotted cc, spotters cc, orig node
 410                         # then  spotted itu, spotted cq, spotters itu, spotters cq
 411                         # you should be able to route on any of these
 412             #
 413
 414                         # fix up qra locators of known users
 415                         my $user = DXUser->get_current($spot[4]);
 416                         if ($user) {
 417                                 my $qra = $user->qra;
 418                                 unless ($qra && is_qra($qra)) {
 419                                         my $lat = $user->lat;
 420                                         my $long = $user->long;
 421                                         if (defined $lat && defined $long) {
 422                                                 $user->qra(DXBearing::lltoqra($lat, $long));
 423                                                 $user->put;
 424                                         }
 425                                 }
 426
 427                                 # send a remote command to a distant cluster if it is visible and there is no
 428                                 # qra locator and we havn't done it for a month.
 429
 430                                 unless ($user->qra) {
 431                                         my $node;
 432                                         my $to = $user->homenode;
 433                                         my $last = $user->lastoper || 0;
 434                                         if ($send_opernam && $to && $to ne $main::mycall && $main::systime > $last + $DXUser::lastoperinterval && ($node = Route::Node::get($to)) ) {
 435                                                 my $cmd = "forward/opernam $spot[4]";
 436                                                 # send the rcmd but we aren't interested in the replies...
 437                                                 my $dxchan = $node->dxchan;
 438                                                 if ($dxchan && $dxchan->is_clx) {
 439                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 440                                                 } else {
 441                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 442                                                 }
 443                                                 if ($to ne $field[7]) {
 444                                                         $to = $field[7];
 445                                                         $node = Route::Node::get($to);
 446                                                         if ($node) {
 447                                                                 $dxchan = $node->dxchan;
 448                                                                 if ($dxchan && $dxchan->is_clx) {
 449                                                                         route(undef, $to, pc84($main::mycall, $to, $main::mycall, $cmd));
 450                                                                 } else {
 451                                                                         route(undef, $to, pc34($main::mycall, $to, $cmd));
 452                                                                 }
 453                                                         }
 454                                                 }
 455                                                 $user->lastoper($main::systime);
 456                                                 $user->put;
 457                                         }
 458                                 }
 459                         }
 460
 461                         # local processing
 462                         my $r;
 463                         eval {
 464                                 $r = Local::spot($self, @spot);
 465                         };
 466 #                       dbg("Local::spot1 error $@") if isdbg('local') if $@;
 467                         return if $r;
 468
 469                         # DON'T be silly and send on PC26s!
 470                         return if $pcno == 26;
 471
 472                         # send out the filtered spots
 473                         send_dx_spot($self, $line, @spot) if @spot;
 474                         return;
 475                 }
 476
 477                 if ($pcno == 12) {              # announces
 478                         # announce duplicate checking
 479                         $field[3] =~ s/^\s+//;  # remove leading blanks
 480                         if (AnnTalk::dup($field[1], $field[2], $field[3])) {
 481                                 dbg("PCPROT: Duplicate Announce ignored") if isdbg('chanerr');
 482                                 return;
 483                         }
 484
 485                         if ($censorpc) {
 486                                 my @bad;
 487                                 if (@bad = BadWords::check($field[3])) {
 488                                         dbg("PCPROT: Bad words: @bad, dropped") if isdbg('chanerr');
 489                                         return;
 490                                 }
 491                         }
 492
 493                         if ($field[2] eq '*' || $field[2] eq $main::mycall) {
 494
 495                                 # global ann filtering on INPUT
 496                                 if ($self->{inannfilter}) {
 497                                         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
 498                                         my @dxcc = Prefix::extract($field[1]);
 499                                         if (@dxcc > 0) {
 500                                                 $ann_dxcc = $dxcc[1]->dxcc;
 501                                                 $ann_itu = $dxcc[1]->itu;
 502                                                 $ann_cq = $dxcc[1]->cq();
 503                                         }
 504                                         @dxcc = Prefix::extract($field[5]);
 505                                         if (@dxcc > 0) {
 506                                                 $org_dxcc = $dxcc[1]->dxcc;
 507                                                 $org_itu = $dxcc[1]->itu;
 508                                                 $org_cq = $dxcc[1]->cq();
 509                                         }
 510                                         my ($filter, $hops) = $self->{inannfilter}->it(@field[1..6], $self->{call},
 511                                                                                                         $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
 512                                         unless ($filter) {
 513                                                 dbg("PCPROT: Rejected by input announce filter") if isdbg('chanerr');
 514                                                 return;
 515                                         }
 516                                 }
 517
 518                                 # send it
 519                                 $self->send_announce($line, @field[1..6]);
 520                         } else {
 521                                 $self->route($field[2], $line);
 522                         }
 523
 524                         return;
 525                 }
 526
 527                 if ($pcno == 13) {
 528                         last SWITCH;
 529                 }
 530                 if ($pcno == 14) {
 531                         last SWITCH;
 532                 }
 533                 if ($pcno == 15) {
 534                         last SWITCH;
 535                 }
 536
 537                 if ($pcno == 16) {              # add a user
 538
 539                         # general checks
 540                         my $dxchan;
 541                         my $ncall = $field[1];
 542                         my $newline = "PC16^";
 543
 544                         if ($ncall eq $main::mycall) {
 545                                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 546                                 return;
 547                         }
 548                         $dxchan = DXChannel->get($ncall);
 549                         if ($dxchan && $dxchan ne $self) {
 550                                 dbg("PCPROT: PC16 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 551                                 return;
 552                         }
 553                         my $parent = Route::Node::get($ncall);
 554                         unless ($parent) {
 555                                 dbg("PCPROT: Node $ncall not in config") if isdbg('chanerr');
 556                                 return;
 557                         }
 558
 559                         # input filter if required
 560                         return unless $self->in_filter_route($parent);
 561
 562                         my $i;
 563                         my @rout;
 564                         for ($i = 2; $i < $#field; $i++) {
 565                                 my ($call, $conf, $here) = $field[$i] =~ /^(\S+) (\S) (\d)/o;
 566                                 next unless $call && $conf && defined $here && is_callsign($call);
 567                                 next if $call eq $main::mycall;
 568
 569                                 eph_del_regex("^PC17\^$call\^$ncall");
 570
 571                                 $conf = $conf eq '*';
 572
 573                                 my $r = Route::User::get($call);
 574                                 my $flags = Route::here($here)|Route::conf($conf);
 575
 576                                 if ($r) {
 577                                         if ($r->flags != $flags) {
 578                                                 $r->flags($flags);
 579                                                 push @rout, $r;
 580                                         }
 581                                         $r->addparent($parent);
 582                                 } else {
 583                                         push @rout, $parent->add_user($call, $flags);
 584                                 }
 585
 586                                 # add this station to the user database, if required
 587                                 $call =~ s/-\d+$//o;        # remove ssid for users
 588                                 my $user = DXUser->get_current($call);
 589                                 $user = DXUser->new($call) if !$user;
 590                                 $user->homenode($parent->call) if !$user->homenode;
 591                                 $user->node($parent->call);
 592                                 $user->lastin($main::systime) unless DXChannel->get($call);
 593                                 $user->put;
 594                         }
 595
 596                         if (eph_dup($line)) {
 597                                 dbg("PCPROT: dup PC16 detected") if isdbg('chanerr');
 598                                 return;
 599                         }
 600
 601                         # queue up any messages (look for privates only)
 602                         DXMsg::queue_msg(1) if $self->state eq 'normal';
 603
 604                         $self->route_pc16($parent, @rout) if @rout;
 605                         return;
 606                 }
 607
 608                 if ($pcno == 17) {              # remove a user
 609                         my $dxchan;
 610                         my $ncall = $field[2];
 611                         my $ucall = $field[1];
 612
 613                         eph_del_regex("^PC16.*$ncall.*$ucall");
 614
 615                         if ($ncall eq $main::mycall) {
 616                                 dbg("PCPROT: trying to alter config on this node from outside!") if isdbg('chanerr');
 617                                 return;
 618                         }
 619                         $dxchan = DXChannel->get($ncall);
 620                         if ($dxchan && $dxchan ne $self) {
 621                                 dbg("PCPROT: PC17 from $self->{call} trying to alter locally connected $ncall, ignored!") if isdbg('chanerr');
 622                                 return;
 623                         }
 624                         my $parent = Route::Node::get($ncall);
 625                         unless ($parent) {
 626                                 dbg("PCPROT: Route::Node $ncall not in config") if isdbg('chanerr');
 627                                 return;
 628                         }
 629                         my $uref = Route::User::get($ucall);
 630                         unless ($uref) {
 631                                 dbg("PCPROT: Route::User $ucall not in config") if isdbg('chanerr');
 632                                 return;
 633                         }
 634
 635
 636                         # input filter if required
 637                         return unless $self->in_filter_route($parent);
 638
 639                         my @rout = $parent->del_user($uref);
 640
 641                         if (eph_dup($line)) {
 642                                 dbg("PCPROT: dup PC17 detected") if isdbg('chanerr');
 643                                 return;
 644                         }
 645
 646                         $self->route_pc17($parent, @rout) if @rout;
 647                         return;
 648                 }
 649
 650                 if ($pcno == 18) {              # link request
 651                         $self->state('init');
 652
 653                         # first clear out any nodes on this dxchannel
 654                         my $parent = Route::Node::get($self->{call});
 655                         my @rout = $parent->del_nodes;
 656                         $self->route_pc21(@rout, $parent) if @rout;
 657                         $self->send_local_config();
 658                         $self->send(pc20());
 659                         return;             # we don't pass these on
 660                 }
 661
 662                 if ($pcno == 19) {              # incoming cluster list
 663                         my $i;
 664                         my $newline = "PC19^";
 665
 666                         # new routing list
 667                         my @rout;
 668                         my $parent = Route::Node::get($self->{call});
 669                         unless ($parent) {
 670                                 dbg("DXPROT: my parent $self->{call} has disappeared");
 671                                 $self->disconnect;
 672                                 return;
 673                         }
 674
 675                         # parse the PC19
 676                         for ($i = 1; $i < $#field-1; $i += 4) {
 677                                 my $here = $field[$i];
 678                                 my $call = uc $field[$i+1];
 679                                 my $conf = $field[$i+2];
 680                                 my $ver = $field[$i+3];
 681                                 next unless defined $here && defined $conf && is_callsign($call);
 682
 683                                 eph_del_regex("^PC(?:21\^$call|17\^[^\^]+\^$call)");
 684
 685                                 # check for sane parameters
 686                                 $ver = 5000 if $ver eq '0000';
 687                                 next if $ver < 5000; # only works with version 5 software
 688                                 next if length $call < 3; # min 3 letter callsigns
 689                                 next if $call eq $main::mycall;
 690
 691                                 # update it if required
 692                                 my $r = Route::Node::get($call);
 693                                 my $flags = Route::here($here)|Route::conf($conf);
 694                                 if ($r) {
 695                                         my $ar;
 696                                         if ($call ne $parent->call) {
 697                                                 if ($self->in_filter_route($r)) {
 698                                                         $ar = $parent->add($call, $ver, $flags);
 699                                                         push @rout, $ar if $ar;
 700                                                 } else {
 701                                                         next;
 702                                                 }
 703                                         }
 704                                         if ($r->version ne $ver || $r->flags != $flags) {
 705                                                 $r->version($ver);
 706                                                 $r->flags($flags);
 707                                                 push @rout, $r unless $ar;
 708                                         }
 709                                 } else {
 710                                         if ($call eq $self->{call}) {
 711                                                 dbg("DXPROT: my channel route for $call has disappeared");
 712                                                 next;
 713                                         };
 714
 715                                         my $new = Route->new($call);          # throw away
 716                                     if ($self->in_filter_route($new)) {
 717                                                 my $r = $parent->add($call, $ver, $flags);
 718                                                 push @rout, $r;
 719                                         } else {
 720                                                 next;
 721                                         }
 722                                 }
 723
 724                                 # unbusy and stop and outgoing mail (ie if somehow we receive another PC19 without a disconnect)
 725                                 my $mref = DXMsg::get_busy($call);
 726                                 $mref->stop_msg($call) if $mref;
 727
 728                                 # add this station to the user database, if required (don't remove SSID from nodes)
 729                                 my $user = DXUser->get_current($call);
 730                                 if (!$user) {
 731                                         $user = DXUser->new($call);
 732                                         $user->sort('A');
 733                                         $user->priv(1);                   # I have relented and defaulted nodes
 734                                         $user->lockout(1);
 735                                         $user->homenode($call);
 736                                         $user->node($call);
 737                                 }
 738                                 $user->lastin($main::systime) unless DXChannel->get($call);
 739                                 $user->put;
 740                         }
 741
 742                         if (eph_dup($line)) {
 743                                 dbg("PCPROT: dup PC19 detected") if isdbg('chanerr');
 744                                 return;
 745                         }
 746
 747                         $self->route_pc19(@rout) if @rout;
 748                         return;
 749                 }
 750
 751                 if ($pcno == 20) {              # send local configuration
 752                         $self->send_local_config();
 753                         $self->send(pc22());
 754                         $self->state('normal');
 755                         $self->{lastping} = 0;
 756                         return;
 757                 }
 758
 759                 if ($pcno == 21) {              # delete a cluster from the list
 760                         my $call = uc $field[1];
 761
 762                         eph_del_regex("^PC1[79].*$call");
 763
 764                         my @rout;
 765                         my $parent = Route::Node::get($self->{call});
 766                         unless ($parent) {
 767                                 dbg("DXPROT: my parent $self->{call} has disappeared");
 768                                 $self->disconnect;
 769                                 return;
 770                         }
 771                         my $node = Route::Node::get($call);
 772                         if ($call ne $main::mycall) { # don't allow malicious buggers to disconnect me!
 773                                 if ($call eq $self->{call}) {
 774                                         dbg("PCPROT: Trying to disconnect myself with PC21") if isdbg('chanerr');
 775                                         return;
 776                                 }
 777
 778                                 if ($node) {
 779                                         # input filter it
 780                                         return unless $self->in_filter_route($node);
 781
 782                                         # routing objects
 783                                         push @rout, $node->del($parent);
 784                                 }
 785                         } else {
 786                                 dbg("PCPROT: I WILL _NOT_ be disconnected!") if isdbg('chanerr');
 787                                 return;
 788                         }
 789
 790                         if (eph_dup($line)) {
 791                                 dbg("PCPROT: dup PC21 detected") if isdbg('chanerr');
 792                                 return;
 793                         }
 794
 795                         $self->route_pc21(@rout) if @rout;
 796                         return;
 797                 }
 798
 799                 if ($pcno == 22) {
 800                         $self->state('normal');
 801                         $self->{lastping} = 0;
 802                         return;
 803                 }
 804
 805                 if ($pcno == 23 || $pcno == 27) { # WWV info
 806
 807                         # route 'foreign' pc27s
 808                         if ($pcno == 27) {
 809                                 if ($field[8] ne $main::mycall) {
 810                                         $self->route($field[8], $line);
 811                                         return;
 812                                 }
 813                         }
 814
 815                         # do some de-duping
 816                         my $d = cltounix($field[1], sprintf("%02d18Z", $field[2]));
 817                         my $sfi = unpad($field[3]);
 818                         my $k = unpad($field[4]);
 819                         my $i = unpad($field[5]);
 820                         my ($r) = $field[6] =~ /R=(\d+)/;
 821                         $r = 0 unless $r;
 822                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
 823                                 dbg("PCPROT: WWV Date ($field[1] $field[2]) out of range") if isdbg('chanerr');
 824                                 return;
 825                         }
 826                         if (Geomag::dup($d,$sfi,$k,$i,$field[6])) {
 827                                 dbg("PCPROT: Dup WWV Spot ignored\n") if isdbg('chanerr');
 828                                 return;
 829                         }
 830                         $field[7] =~ s/-\d+$//o;            # remove spotter's ssid
 831
 832                         my $wwv = Geomag::update($d, $field[2], $sfi, $k, $i, @field[6..8], $r);
 833
 834                         my $rep;
 835                         eval {
 836                                 $rep = Local::wwv($self, $field[1], $field[2], $sfi, $k, $i, @field[6..8], $r);
 837                         };
 838 #                       dbg("Local::wwv2 error $@") if isdbg('local') if $@;
 839                         return if $rep;
 840
 841                         # DON'T be silly and send on PC27s!
 842                         return if $pcno == 27;
 843
 844                         # broadcast to the eager world
 845                         send_wwv_spot($self, $line, $d, $field[2], $sfi, $k, $i, @field[6..8]);
 846                         return;
 847                 }
 848
 849                 if ($pcno == 24) {              # set here status
 850                         my $call = uc $field[1];
 851                         my ($nref, $uref);
 852                         $nref = Route::Node::get($call);
 853                         $uref = Route::User::get($call);
 854                         return unless $nref || $uref;   # if we don't know where they are, it's pointless sending it on
 855
 856                         unless (eph_dup($line)) {
 857                                 $nref->here($field[2]) if $nref;
 858                                 $uref->here($field[2]) if $uref;
 859                                 my $ref = $nref || $uref;
 860                                 return unless $self->in_filter_route($ref);
 861                                 $self->route_pc24($ref, $field[3]);
 862                         }
 863                         return;
 864                 }
 865
 866                 if ($pcno == 25) {      # merge request
 867                         if ($field[1] ne $main::mycall) {
 868                                 $self->route($field[1], $line);
 869                                 return;
 870                         }
 871                         if ($field[2] eq $main::mycall) {
 872                                 dbg("PCPROT: Trying to merge to myself, ignored") if isdbg('chanerr');
 873                                 return;
 874                         }
 875
 876                         Log('DXProt', "Merge request for $field[3] spots and $field[4] WWV from $field[2]");
 877
 878                         # spots
 879                         if ($field[3] > 0) {
 880                                 my @in = reverse Spot::search(1, undef, undef, 0, $field[3]);
 881                                 my $in;
 882                                 foreach $in (@in) {
 883                                         $self->send(pc26(@{$in}[0..4], $field[2]));
 884                                 }
 885                         }
 886
 887                         # wwv
 888                         if ($field[4] > 0) {
 889                                 my @in = reverse Geomag::search(0, $field[4], time, 1);
 890                                 my $in;
 891                                 foreach $in (@in) {
 892                                         $self->send(pc27(@{$in}[0..5], $field[2]));
 893                                 }
 894                         }
 895                         return;
 896                 }
 897
 898                 if (($pcno >= 28 && $pcno <= 33) || $pcno == 40 || $pcno == 42 || $pcno == 49) { # mail/file handling
 899                         if ($pcno == 49 || $field[1] eq $main::mycall) {
 900                                 DXMsg::process($self, $line);
 901                         } else {
 902                                 $self->route($field[1], $line) unless $self->is_clx;
 903                         }
 904                         return;
 905                 }
 906
 907                 if ($pcno == 34 || $pcno == 36) { # remote commands (incoming)
 908                         $self->process_rcmd($field[1], $field[2], $field[2], $field[3]);
 909                         return;
 910                 }
 911
 912                 if ($pcno == 35) {              # remote command replies
 913                         $self->process_rcmd_reply($field[1], $field[2], $field[1], $field[3]);
 914                         return;
 915                 }
 916
 917                 # for pc 37 see 44 onwards
 918
 919                 if ($pcno == 38) {              # node connected list from neighbour
 920                         return;
 921                 }
 922
 923                 if ($pcno == 39) {              # incoming disconnect
 924                         if ($field[1] eq $self->{call}) {
 925                                 $self->disconnect(1);
 926                                 eph_del_regex("^PC(?:1[679]|21).*$field[1]");
 927                         } else {
 928                                 dbg("PCPROT: came in on wrong channel") if isdbg('chanerr');
 929                         }
 930                         return;
 931                 }
 932
 933                 if ($pcno == 41) {              # user info
 934                         my $call = $field[1];
 935
 936                         # input filter if required
 937 #                       my $ref = Route::get($call) || Route->new($call);
 938 #                       return unless $self->in_filter_route($ref);
 939
 940                         if ($field[3] eq $field[2]) {
 941                                 dbg('PCPROT: invalid value') if isdbg('chanerr');
 942                                 return;
 943                         }
 944
 945                         # add this station to the user database, if required
 946                         my $user = DXUser->get_current($call);
 947                         $user = DXUser->new($call) if !$user;
 948
 949                         if ($field[2] == 1) {
 950                                 $user->name($field[3]);
 951                         } elsif ($field[2] == 2) {
 952                                 $user->qth($field[3]);
 953                         } elsif ($field[2] == 3) {
 954                                 if (is_latlong($field[3])) {
 955                                         my ($lat, $long) = DXBearing::stoll($field[3]);
 956                                         $user->lat($lat);
 957                                         $user->long($long);
 958                                         $user->qra(DXBearing::lltoqra($lat, $long));
 959                                 } else {
 960                                         dbg('PCPROT: not a valid lat/long') if isdbg('chanerr');
 961                                         return;
 962                                 }
 963                         } elsif ($field[2] == 4) {
 964                                 $user->homenode($field[3]);
 965                         } elsif ($field[2] == 5) {
 966                                 if (is_qra($field[3])) {
 967                                         my ($lat, $long) = DXBearing::qratoll($field[3]);
 968                                         $user->lat($lat);
 969                                         $user->long($long);
 970                                         $user->qra($field[3]);
 971                                 } else {
 972                                         dbg('PCPROT: not a valid QRA locator') if isdbg('chanerr');
 973                                         return;
 974                                 }
 975                         }
 976                         $user->lastoper($main::systime);   # to cut down on excessive for/opers being generated
 977                         $user->put;
 978
 979 #  perhaps this IS what we want after all
 980 #                       $self->route_pc41($ref, $call, $field[2], $field[3], $field[4]);
 981 #                       return;
 982                 }
 983
 984                 if ($pcno == 43) {
 985                         last SWITCH;
 986                 }
 987
 988                 if ($pcno == 37 || $pcno == 44 || $pcno == 45 || $pcno == 46 || $pcno == 47 || $pcno == 48) {
 989                         DXDb::process($self, $line);
 990                         return;
 991                 }
 992
 993                 if ($pcno == 50) {              # keep alive/user list
 994                         my $call = $field[1];
 995                         my $node = Route::Node::get($call);
 996                         if ($node) {
 997                                 return unless $node->call eq $self->{call};
 998                                 $node->usercount($field[2]);
 999
1000                                 # input filter if required
1001                                 return unless $self->in_filter_route($node);
1002
1003                                 $self->route_pc50($node, $field[2], $field[3]) unless eph_dup($line);
1004                         }
1005                         return;
1006                 }
1007
1008                 if ($pcno == 51) {              # incoming ping requests/answers
1009                         my $to = $field[1];
1010                         my $from = $field[2];
1011                         my $flag = $field[3];
1012
1013
1014                         # is it for us?
1015                         if ($to eq $main::mycall) {
1016                                 if ($flag == 1) {
1017                                         $self->send(pc51($from, $to, '0'));
1018                                 } else {
1019                                         # it's a reply, look in the ping list for this one
1020                                         my $ref = $pings{$from};
1021                                         if ($ref) {
1022                                                 my $tochan =  DXChannel->get($from);
1023                                                 while (@$ref) {
1024                                                         my $r = shift @$ref;
1025                                                         my $dxchan = DXChannel->get($r->{call});
1026                                                         next unless $dxchan;
1027                                                         my $t = tv_interval($r->{t}, [ gettimeofday ]);
1028                                                         if ($dxchan->is_user) {
1029                                                                 my $s = sprintf "%.2f", $t;
1030                                                                 my $ave = sprintf "%.2f", $tochan ? ($tochan->{pingave} || $t) : $t;
1031                                                                 $dxchan->send($dxchan->msg('pingi', $from, $s, $ave))
1032                                                         } elsif ($dxchan->is_node) {
1033                                                                 if ($tochan) {
1034                                                                         $tochan->{nopings} = $tochan->user->nopings || 2; # pump up the timer
1035                                                                         push @{$tochan->{pingtime}}, $t;
1036                                                                         shift @{$tochan->{pingtime}} if @{$tochan->{pingtime}} > 6;
1037                                                                         my $st;
1038                                                                         for (@{$tochan->{pingtime}}) {
1039                                                                                 $st += $_;
1040                                                                         }
1041                                                                         $tochan->{pingave} = $st / @{$tochan->{pingtime}};
1042                                                                 }
1043                                                         }
1044                                                 }
1045                                         }
1046                                 }
1047                         } else {
1048                                 if (eph_dup($line)) {
1049                                         dbg("PCPROT: dup PC51 detected") if isdbg('chanerr');
1050                                         return;
1051                                 }
1052                                 # route down an appropriate thingy
1053                                 $self->route($to, $line);
1054                         }
1055                         return;
1056                 }
1057
1058                 if ($pcno == 75) {              # dunno but route it
1059                         my $call = $field[1];
1060                         if ($call ne $main::mycall) {
1061                                 $self->route($call, $line);
1062                         }
1063                         return;
1064                 }
1065
1066                 if ($pcno == 73) {  # WCY broadcasts
1067                         my $call = $field[1];
1068
1069                         # do some de-duping
1070                         my $d = cltounix($call, sprintf("%02d18Z", $field[2]));
1071                         if (($pcno == 23 && $d < $main::systime - $pc23_max_age) || $d > $main::systime + 1500 || $field[2] < 0 || $field[2] > 23) {
1072                                 dbg("PCPROT: WCY Date ($call $field[2]) out of range") if isdbg('chanerr');
1073                                 return;
1074                         }
1075                         @field = map { unpad($_) } @field;
1076                         if (WCY::dup($d,@field[3..7])) {
1077                                 dbg("PCPROT: Dup WCY Spot ignored\n") if isdbg('chanerr');
1078                                 return;
1079                         }
1080
1081                         my $wcy = WCY::update($d, @field[2..12]);
1082
1083                         my $rep;
1084                         eval {
1085                                 $rep = Local::wwv($self, @field[1..12]);
1086                         };
1087                         # dbg("Local::wcy error $@") if isdbg('local') if $@;
1088                         return if $rep;
1089
1090                         # broadcast to the eager world
1091                         send_wcy_spot($self, $line, $d, @field[2..12]);
1092                         return;
1093                 }
1094
1095                 if ($pcno == 84) { # remote commands (incoming)
1096                         $self->process_rcmd($field[1], $field[2], $field[3], $field[4]);
1097                         return;
1098                 }
1099
1100                 if ($pcno == 85) {              # remote command replies
1101                         $self->process_rcmd_reply($field[1], $field[2], $field[3], $field[4]);
1102
1103                         return;
1104                 }
1105         }
1106
1107         # if get here then rebroadcast the thing with its Hop count decremented (if
1108         # there is one). If it has a hop count and it decrements to zero then don't
1109         # rebroadcast it.
1110         #
1111         # NOTE - don't arrive here UNLESS YOU WANT this lump of protocol to be
1112         #        REBROADCAST!!!!
1113         #
1114
1115         if (eph_dup($line)) {
1116                 dbg("PCPROT: Ephemeral dup, dropped") if isdbg('chanerr');
1117         } else {
1118                 unless ($self->{isolate}) {
1119                         broadcast_ak1a($line, $self); # send it to everyone but me
1120                 }
1121         }
1122 }
1123
1124 #
1125 # This is called from inside the main cluster processing loop and is used
1126 # for despatching commands that are doing some long processing job
1127 #
1128 sub process
1129 {
1130         my $t = time;
1131         my @dxchan = DXChannel->get_all();
1132         my $dxchan;
1133         my $pc50s;
1134
1135         # send out a pc50 on EVERY channel all at once
1136         if ($t >= $last_pc50 + $DXProt::pc50_interval) {
1137                 $pc50s = pc50($me, scalar DXChannel::get_all_users);
1138                 eph_dup($pc50s);
1139                 $last_pc50 = $t;
1140         }
1141
1142         foreach $dxchan (@dxchan) {
1143                 next unless $dxchan->is_node();
1144                 next if $dxchan == $me;
1145
1146                 # send the pc50
1147                 $dxchan->send($pc50s) if $pc50s;
1148
1149                 # send a ping out on this channel
1150                 if ($dxchan->{pingint} && $t >= $dxchan->{pingint} + $dxchan->{lastping}) {
1151                         if ($dxchan->{nopings} <= 0) {
1152                                 $dxchan->disconnect;
1153                         } else {
1154                                 addping($main::mycall, $dxchan->call);
1155                                 $dxchan->{nopings} -= 1;
1156                                 $dxchan->{lastping} = $t;
1157                         }
1158                 }
1159         }
1160
1161         # every ten seconds
1162         if ($t - $last10 >= 10) {
1163                 # clean out ephemera
1164
1165                 eph_clean();
1166
1167                 $last10 = $t;
1168         }
1169
1170         if ($main::systime - 3600 > $last_hour) {
1171                 $last_hour = $main::systime;
1172         }
1173 }
1174
1175 #
1176 # finish up a pc context
1177 #
1178
1179 #
1180 # some active measures
1181 #
1182
1183 sub send_dx_spot
1184 {
1185         my $self = shift;
1186         my $line = shift;
1187         my @dxchan = DXChannel->get_all();
1188         my $dxchan;
1189
1190         # send it if it isn't the except list and isn't isolated and still has a hop count
1191         # taking into account filtering and so on
1192         foreach $dxchan (@dxchan) {
1193                 next if $dxchan == $me;
1194                 next if $dxchan == $self && $self->is_node;
1195                 $dxchan->dx_spot($line, $self->{isolate}, @_, $self->{call});
1196         }
1197 }
1198
1199 sub dx_spot
1200 {
1201         my $self = shift;
1202         my $line = shift;
1203         my $isolate = shift;
1204         my ($filter, $hops);
1205
1206         if ($self->{spotsfilter}) {
1207                 ($filter, $hops) = $self->{spotsfilter}->it(@_);
1208                 return unless $filter;
1209         }
1210         send_prot_line($self, $filter, $hops, $isolate, $line);
1211 }
1212
1213 sub send_prot_line
1214 {
1215         my ($self, $filter, $hops, $isolate, $line) = @_;
1216         my $routeit;
1217
1218         if ($hops) {
1219                 $routeit = $line;
1220                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1221         } else {
1222                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1223                 return unless $routeit;
1224         }
1225         if ($filter) {
1226                 $self->send($routeit);
1227         } else {
1228                 $self->send($routeit) unless $self->{isolate} || $isolate;
1229         }
1230 }
1231
1232
1233 sub send_wwv_spot
1234 {
1235         my $self = shift;
1236         my $line = shift;
1237         my @dxchan = DXChannel->get_all();
1238         my $dxchan;
1239         my ($wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1240         my @dxcc = Prefix::extract($_[7]);
1241         if (@dxcc > 0) {
1242                 $wwv_dxcc = $dxcc[1]->dxcc;
1243                 $wwv_itu = $dxcc[1]->itu;
1244                 $wwv_cq = $dxcc[1]->cq;
1245         }
1246         @dxcc = Prefix::extract($_[8]);
1247         if (@dxcc > 0) {
1248                 $org_dxcc = $dxcc[1]->dxcc;
1249                 $org_itu = $dxcc[1]->itu;
1250                 $org_cq = $dxcc[1]->cq;
1251         }
1252
1253         # send it if it isn't the except list and isn't isolated and still has a hop count
1254         # taking into account filtering and so on
1255         foreach $dxchan (@dxchan) {
1256                 next if $dxchan == $me;
1257                 next if $dxchan == $self && $self->is_node;
1258                 my $routeit;
1259                 my ($filter, $hops);
1260
1261                 $dxchan->wwv($line, $self->{isolate}, @_, $self->{call}, $wwv_dxcc, $wwv_itu, $wwv_cq, $org_dxcc, $org_itu, $org_cq);
1262         }
1263
1264 }
1265
1266 sub wwv
1267 {
1268         my $self = shift;
1269         my $line = shift;
1270         my $isolate = shift;
1271         my ($filter, $hops);
1272
1273         if ($self->{wwvfilter}) {
1274                 ($filter, $hops) = $self->{wwvfilter}->it(@_);
1275                 return unless $filter;
1276         }
1277         send_prot_line($self, $filter, $hops, $isolate, $line)
1278 }
1279
1280 sub send_wcy_spot
1281 {
1282         my $self = shift;
1283         my $line = shift;
1284         my @dxchan = DXChannel->get_all();
1285         my $dxchan;
1286         my ($wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1287         my @dxcc = Prefix::extract($_[11]);
1288         if (@dxcc > 0) {
1289                 $wcy_dxcc = $dxcc[1]->dxcc;
1290                 $wcy_itu = $dxcc[1]->itu;
1291                 $wcy_cq = $dxcc[1]->cq;
1292         }
1293         @dxcc = Prefix::extract($_[12]);
1294         if (@dxcc > 0) {
1295                 $org_dxcc = $dxcc[1]->dxcc;
1296                 $org_itu = $dxcc[1]->itu;
1297                 $org_cq = $dxcc[1]->cq;
1298         }
1299
1300         # send it if it isn't the except list and isn't isolated and still has a hop count
1301         # taking into account filtering and so on
1302         foreach $dxchan (@dxchan) {
1303                 next if $dxchan == $me;
1304                 next if $dxchan == $self;
1305
1306                 $dxchan->wcy($line, $self->{isolate}, @_, $self->{call}, $wcy_dxcc, $wcy_itu, $wcy_cq, $org_dxcc, $org_itu, $org_cq);
1307         }
1308 }
1309
1310 sub wcy
1311 {
1312         my $self = shift;
1313         my $line = shift;
1314         my $isolate = shift;
1315         my ($filter, $hops);
1316
1317         if ($self->{wcyfilter}) {
1318                 ($filter, $hops) = $self->{wcyfilter}->it(@_);
1319                 return unless $filter;
1320         }
1321         send_prot_line($self, $filter, $hops, $isolate, $line) if $self->is_clx || $self->is_spider || $self->is_dxnet;
1322 }
1323
1324 # send an announce
1325 sub send_announce
1326 {
1327         my $self = shift;
1328         my $line = shift;
1329         my @dxchan = DXChannel->get_all();
1330         my $dxchan;
1331         my $target;
1332         my $to = 'To ';
1333         my $text = unpad($_[2]);
1334
1335         if ($_[3] eq '*') {     # sysops
1336                 $target = "SYSOP";
1337         } elsif ($_[3] gt ' ') { # speciality list handling
1338                 my ($name) = split /\./, $_[3];
1339                 $target = "$name"; # put the rest in later (if bothered)
1340         }
1341
1342         if ($_[5] eq '1') {
1343                 $target = "WX";
1344                 $to = '';
1345         }
1346         $target = "ALL" if !$target;
1347
1348         Log('ann', $target, $_[0], $text);
1349
1350         # obtain country codes etc
1351         my ($ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq) = (0..0);
1352         my @dxcc = Prefix::extract($_[0]);
1353         if (@dxcc > 0) {
1354                 $ann_dxcc = $dxcc[1]->dxcc;
1355                 $ann_itu = $dxcc[1]->itu;
1356                 $ann_cq = $dxcc[1]->cq;
1357         }
1358         @dxcc = Prefix::extract($_[4]);
1359         if (@dxcc > 0) {
1360                 $org_dxcc = $dxcc[1]->dxcc;
1361                 $org_itu = $dxcc[1]->itu;
1362                 $org_cq = $dxcc[1]->cq;
1363         }
1364
1365         # send it if it isn't the except list and isn't isolated and still has a hop count
1366         # taking into account filtering and so on
1367         foreach $dxchan (@dxchan) {
1368                 next if $dxchan == $me;
1369                 next if $dxchan == $self && $self->is_node;
1370                 $dxchan->announce($line, $self->{isolate}, $to, $target, $text, @_, $self->{call}, $ann_dxcc, $ann_itu, $ann_cq, $org_dxcc, $org_itu, $org_cq);
1371         }
1372 }
1373
1374 sub announce
1375 {
1376         my $self = shift;
1377         my $line = shift;
1378         my $isolate = shift;
1379         my $to = shift;
1380         my $target = shift;
1381         my $text = shift;
1382         my ($filter, $hops);
1383
1384         if ($self->{annfilter}) {
1385                 ($filter, $hops) = $self->{annfilter}->it(@_);
1386                 return unless $filter;
1387         }
1388         send_prot_line($self, $filter, $hops, $isolate, $line) unless $_[1] eq $main::mycall;
1389 }
1390
1391
1392 sub send_local_config
1393 {
1394         my $self = shift;
1395         my $n;
1396         my @nodes;
1397         my @localnodes;
1398         my @remotenodes;
1399
1400         dbg('DXProt::send_local_config') if isdbg('trace');
1401
1402         # send our nodes
1403         if ($self->{isolate}) {
1404                 @localnodes = ( $main::routeroot );
1405         } else {
1406                 # create a list of all the nodes that are not connected to this connection
1407                 # and are not themselves isolated, this to make sure that isolated nodes
1408         # don't appear outside of this node
1409                 my @dxchan = grep { $_->call ne $main::mycall && $_ != $self && !$_->{isolate} } DXChannel::get_all_nodes();
1410                 @localnodes = map { my $r = Route::Node::get($_->{call}); $r ? $r : () } @dxchan if @dxchan;
1411                 my @intcalls = map { $_->nodes } @localnodes if @localnodes;
1412                 my $ref = Route::Node::get($self->{call});
1413                 my @rnodes = $ref->nodes;
1414                 for my $n (@intcalls) {
1415                         push @remotenodes, Route::Node::get($n) unless grep $n eq $_, @rnodes;
1416                 }
1417                 unshift @localnodes, $main::routeroot;
1418         }
1419
1420         send_route($self, \&pc19, scalar(@localnodes)+scalar(@remotenodes), @localnodes, @remotenodes);
1421
1422         # get all the users connected on the above nodes and send them out
1423         foreach $n (@localnodes, @remotenodes) {
1424                 if ($n) {
1425                         send_route($self, \&pc16, 1, $n, map {my $r = Route::User::get($_); $r ? ($r) : ()} $n->users);
1426                 } else {
1427                         dbg("sent a null value") if isdbg('chanerr');
1428                 }
1429         }
1430 }
1431
1432 #
1433 # route a message down an appropriate interface for a callsign
1434 #
1435 # is called route(to, pcline);
1436 #
1437 sub route
1438 {
1439         my ($self, $call, $line) = @_;
1440
1441         if (ref $self && $call eq $self->{call}) {
1442                 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1443                 return;
1444         }
1445
1446         # always send it down the local interface if available
1447         my $dxchan = DXChannel->get($call);
1448         unless ($dxchan) {
1449                 my $cl = Route::get($call);
1450                 $dxchan = $cl->dxchan if $cl;
1451                 if (ref $dxchan) {
1452                         if (ref $self && $dxchan eq $self) {
1453                                 dbg("PCPROT: Trying to route back to source, dropped") if isdbg('chanerr');
1454                                 return;
1455                         }
1456                 }
1457         }
1458         if ($dxchan) {
1459                 my $routeit = adjust_hops($dxchan, $line);   # adjust its hop count by node name
1460                 if ($routeit) {
1461                         $dxchan->send($routeit) unless $dxchan == $me;
1462                 }
1463         } else {
1464                 dbg("PCPROT: No route available, dropped") if isdbg('chanerr');
1465         }
1466 }
1467
1468 # broadcast a message to all clusters taking into account isolation
1469 # [except those mentioned after buffer]
1470 sub broadcast_ak1a
1471 {
1472         my $s = shift;                          # the line to be rebroadcast
1473         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1474         my @dxchan = DXChannel::get_all_nodes();
1475         my $dxchan;
1476
1477         # send it if it isn't the except list and isn't isolated and still has a hop count
1478         foreach $dxchan (@dxchan) {
1479                 next if grep $dxchan == $_, @except;
1480                 next if $dxchan == $me;
1481
1482                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1483                 $dxchan->send($routeit) unless $dxchan->{isolate} || !$routeit;
1484         }
1485 }
1486
1487 # broadcast a message to all clusters ignoring isolation
1488 # [except those mentioned after buffer]
1489 sub broadcast_all_ak1a
1490 {
1491         my $s = shift;                          # the line to be rebroadcast
1492         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1493         my @dxchan = DXChannel::get_all_nodes();
1494         my $dxchan;
1495
1496         # send it if it isn't the except list and isn't isolated and still has a hop count
1497         foreach $dxchan (@dxchan) {
1498                 next if grep $dxchan == $_, @except;
1499                 next if $dxchan == $me;
1500
1501                 my $routeit = adjust_hops($dxchan, $s);      # adjust its hop count by node name
1502                 $dxchan->send($routeit);
1503         }
1504 }
1505
1506 # broadcast to all users
1507 # storing the spot or whatever until it is in a state to receive it
1508 sub broadcast_users
1509 {
1510         my $s = shift;                          # the line to be rebroadcast
1511         my $sort = shift;           # the type of transmission
1512         my $fref = shift;           # a reference to an object to filter on
1513         my @except = @_;                        # to all channels EXCEPT these (dxchannel refs)
1514         my @dxchan = DXChannel::get_all_users();
1515         my $dxchan;
1516         my @out;
1517
1518         foreach $dxchan (@dxchan) {
1519                 next if grep $dxchan == $_, @except;
1520                 push @out, $dxchan;
1521         }
1522         broadcast_list($s, $sort, $fref, @out);
1523 }
1524
1525 # broadcast to a list of users
1526 sub broadcast_list
1527 {
1528         my $s = shift;
1529         my $sort = shift;
1530         my $fref = shift;
1531         my $dxchan;
1532
1533         foreach $dxchan (@_) {
1534                 my $filter = 1;
1535                 next if $dxchan == $me;
1536
1537                 if ($sort eq 'dx') {
1538                     next unless $dxchan->{dx};
1539                         ($filter) = $dxchan->{spotsfilter}->it(@{$fref}) if ref $fref;
1540                         next unless $filter;
1541                 }
1542                 next if $sort eq 'ann' && !$dxchan->{ann} && $s !~ /^To\s+LOCAL\s+de\s+(?:$main::myalias|$main::mycall)/i;
1543                 next if $sort eq 'wwv' && !$dxchan->{wwv};
1544                 next if $sort eq 'wcy' && !$dxchan->{wcy};
1545                 next if $sort eq 'wx' && !$dxchan->{wx};
1546
1547                 $s =~ s/\a//og unless $dxchan->{beep};
1548
1549                 if ($dxchan->{state} eq 'prompt' || $dxchan->{state} eq 'talk') {
1550                         $dxchan->send($s);
1551                 } else {
1552                         $dxchan->delay($s);
1553                 }
1554         }
1555 }
1556
1557
1558 #
1559 # obtain the hops from the list for this callsign and pc no
1560 #
1561
1562 sub get_hops
1563 {
1564         my $pcno = shift;
1565         my $hops = $DXProt::hopcount{$pcno};
1566         $hops = $DXProt::def_hopcount if !$hops;
1567         return "H$hops";
1568 }
1569
1570 #
1571 # adjust the hop count on a per node basis using the user loadable
1572 # hop table if available or else decrement an existing one
1573 #
1574
1575 sub adjust_hops
1576 {
1577         my $self = shift;
1578         my $s = shift;
1579         my $call = $self->{call};
1580         my $hops;
1581
1582         if (($hops) = $s =~ /\^H(\d+)\^~?$/o) {
1583                 my ($pcno) = $s =~ /^PC(\d\d)/o;
1584                 confess "$call called adjust_hops with '$s'" unless $pcno;
1585                 my $ref = $nodehops{$call} if %nodehops;
1586                 if ($ref) {
1587                         my $newhops = $ref->{$pcno};
1588                         return "" if defined $newhops && $newhops == 0;
1589                         $newhops = $ref->{default} unless $newhops;
1590                         return "" if defined $newhops && $newhops == 0;
1591                         $newhops = $hops if !$newhops;
1592                         $s =~ s/\^H(\d+)(\^~?)$/\^H$newhops$2/ if $newhops;
1593                 } else {
1594                         # simply decrement it
1595                         $hops--;
1596                         return "" if !$hops;
1597                         $s =~ s/\^H(\d+)(\^~?)$/\^H$hops$2/ if $hops;
1598                 }
1599         }
1600         return $s;
1601 }
1602
1603 #
1604 # load hop tables
1605 #
1606 sub load_hops
1607 {
1608         my $self = shift;
1609         return $self->msg('lh1') unless -e "$main::data/hop_table.pl";
1610         do "$main::data/hop_table.pl";
1611         return $@ if $@;
1612         return 0;
1613 }
1614
1615
1616 # add a ping request to the ping queues
1617 sub addping
1618 {
1619         my ($from, $to) = @_;
1620         my $ref = $pings{$to} || [];
1621         my $r = {};
1622         $r->{call} = $from;
1623         $r->{t} = [ gettimeofday ];
1624         route(undef, $to, pc51($to, $main::mycall, 1));
1625         push @$ref, $r;
1626         $pings{$to} = $ref;
1627 }
1628
1629 sub process_rcmd
1630 {
1631         my ($self, $tonode, $fromnode, $user, $cmd) = @_;
1632         if ($tonode eq $main::mycall) {
1633                 my $ref = DXUser->get_current($fromnode);
1634                 my $cref = Route::Node::get($fromnode);
1635                 Log('rcmd', 'in', $ref->{priv}, $fromnode, $cmd);
1636                 if ($cmd !~ /^\s*rcmd/i && $cref && $ref && $cref->call eq $ref->homenode) { # not allowed to relay RCMDS!
1637                         if ($ref->{priv}) {             # you have to have SOME privilege, the commands have further filtering
1638                                 $self->{remotecmd} = 1; # for the benefit of any command that needs to know
1639                                 my $oldpriv = $self->{priv};
1640                                 $self->{priv} = $ref->{priv}; # assume the user's privilege level
1641                                 my @in = (DXCommandmode::run_cmd($self, $cmd));
1642                                 $self->{priv} = $oldpriv;
1643                                 $self->send_rcmd_reply($main::mycall, $fromnode, $user, @in);
1644                                 delete $self->{remotecmd};
1645                         } else {
1646                                 $self->send_rcmd_reply($main::mycall, $fromnode, $user, "sorry...!");
1647                         }
1648                 } else {
1649                         $self->send_rcmd_reply($main::mycall, $fromnode, $user, "your attempt is logged, Tut tut tut...!");
1650                 }
1651         } else {
1652                 my $ref = DXUser->get_current($tonode);
1653                 if ($ref && $ref->is_clx) {
1654                         $self->route($tonode, pc84($fromnode, $tonode, $user, $cmd));
1655                 } else {
1656                         $self->route($tonode, pc34($fromnode, $tonode, $cmd));
1657                 }
1658         }
1659 }
1660
1661 sub process_rcmd_reply
1662 {
1663         my ($self, $tonode, $fromnode, $user, $line) = @_;
1664         if ($tonode eq $main::mycall) {
1665                 my $s = $rcmds{$fromnode};
1666                 if ($s) {
1667                         my $dxchan = DXChannel->get($s->{call});
1668                         my $ref = $user eq $tonode ? $dxchan : (DXChannel->get($user) || $dxchan);
1669                         $ref->send($line) if $ref;
1670                         delete $rcmds{$fromnode} if !$dxchan;
1671                 } else {
1672                         # send unsolicited ones to the sysop
1673                         my $dxchan = DXChannel->get($main::myalias);
1674                         $dxchan->send($line) if $dxchan;
1675                 }
1676         } else {
1677                 my $ref = DXUser->get_current($tonode);
1678                 if ($ref && $ref->is_clx) {
1679                         $self->route($tonode, pc85($fromnode, $tonode, $user, $line));
1680                 } else {
1681                         $self->route($tonode, pc35($fromnode, $tonode, $line));
1682                 }
1683         }
1684 }
1685
1686 sub send_rcmd_reply
1687 {
1688         my $self = shift;
1689         my $tonode = shift;
1690         my $fromnode = shift;
1691         my $user = shift;
1692         while (@_) {
1693                 my $line = shift;
1694                 $line =~ s/\s*$//;
1695                 Log('rcmd', 'out', $fromnode, $line);
1696                 if ($self->is_clx) {
1697                         $self->send(pc85($main::mycall, $fromnode, $user, "$main::mycall:$line"));
1698                 } else {
1699                         $self->send(pc35($main::mycall, $fromnode, "$main::mycall:$line"));
1700                 }
1701         }
1702 }
1703
1704 # add a rcmd request to the rcmd queues
1705 sub addrcmd
1706 {
1707         my ($self, $to, $cmd) = @_;
1708
1709         my $r = {};
1710         $r->{call} = $self->{call};
1711         $r->{t} = $main::systime;
1712         $r->{cmd} = $cmd;
1713         $rcmds{$to} = $r;
1714
1715         my $ref = Route::Node::get($to);
1716         my $dxchan = $ref->dxchan;
1717         if ($dxchan && $dxchan->is_clx) {
1718                 route(undef, $to, pc84($main::mycall, $to, $self->{call}, $cmd));
1719         } else {
1720                 route(undef, $to, pc34($main::mycall, $to, $cmd));
1721         }
1722 }
1723
1724 sub disconnect
1725 {
1726         my $self = shift;
1727         my $pc39flag = shift;
1728         my $call = $self->call;
1729
1730         return if $self->{disconnecting}++;
1731
1732         unless ($pc39flag && $pc39flag == 1) {
1733                 $self->send_now("D", DXProt::pc39($main::mycall, $self->msg('disc1', "System Op")));
1734         }
1735
1736         # do routing stuff
1737         my $node = Route::Node::get($call);
1738         my @rout;
1739         if ($node) {
1740                 @rout = $node->del($main::routeroot);
1741         }
1742
1743         # unbusy and stop and outgoing mail
1744         my $mref = DXMsg::get_busy($call);
1745         $mref->stop_msg($call) if $mref;
1746
1747         # broadcast to all other nodes that all the nodes connected to via me are gone
1748         unless ($pc39flag && $pc39flag == 2) {
1749                 $self->route_pc21(@rout) if @rout;
1750         }
1751
1752         # remove outstanding pings
1753         delete $pings{$call};
1754
1755         # I was the last node visited
1756     $self->user->node($main::mycall);
1757
1758         # send info to all logged in thingies
1759         $self->tell_login('logoutn');
1760
1761         Log('DXProt', $call . " Disconnected");
1762
1763         $self->SUPER::disconnect;
1764 }
1765
1766
1767 #
1768 # send a talk message to this thingy
1769 #
1770 sub talk
1771 {
1772         my ($self, $from, $to, $via, $line) = @_;
1773
1774         $line =~ s/\^/\\5E/g;                   # remove any ^ characters
1775         $self->send(DXProt::pc10($from, $to, $via, $line));
1776         Log('talk', $self->call, $from, $via?$via:$main::mycall, $line);
1777 }
1778
1779 # send it if it isn't the except list and isn't isolated and still has a hop count
1780 # taking into account filtering and so on
1781 sub send_route
1782 {
1783         my $self = shift;
1784         my $generate = shift;
1785         my $no = shift;     # the no of things to filter on
1786         my $routeit;
1787         my ($filter, $hops);
1788         my @rin;
1789
1790         for (; @_ && $no; $no--) {
1791                 my $r = shift;
1792
1793                 if (!$self->{isolate} && $self->{routefilter}) {
1794                         $filter = undef;
1795                         if ($r) {
1796                                 ($filter, $hops) = $self->{routefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1797                                 if ($filter) {
1798                                         push @rin, $r;
1799                                 } else {
1800                                         dbg("DXPROT: $self->{call}/" . $r->call . " rejected by output filter") if isdbg('chanerr');
1801                                 }
1802                         } else {
1803                                 dbg("was sent a null value") if isdbg('chanerr');
1804                         }
1805                 } else {
1806                         push @rin, $r unless $self->{isolate} && $r->call ne $main::mycall;
1807                 }
1808         }
1809         if (@rin) {
1810                 foreach my $line (&$generate(@rin, @_)) {
1811                         if ($hops) {
1812                                 $routeit = $line;
1813                                 $routeit =~ s/\^H\d+\^\~$/\^H$hops\^\~/;
1814                         } else {
1815                                 $routeit = adjust_hops($self, $line);  # adjust its hop count by node name
1816                                 next unless $routeit;
1817                         }
1818                         $self->send($routeit);
1819                 }
1820         }
1821 }
1822
1823 sub broadcast_route
1824 {
1825         my $self = shift;
1826         my $generate = shift;
1827         my @dxchan = DXChannel::get_all_nodes();
1828         my $dxchan;
1829         my $line;
1830
1831         unless ($self->{isolate}) {
1832                 foreach $dxchan (@dxchan) {
1833                         next if $dxchan == $self;
1834                         next if $dxchan == $me;
1835                         $dxchan->send_route($generate, @_);
1836                 }
1837         }
1838 }
1839
1840 sub route_pc16
1841 {
1842         my $self = shift;
1843         broadcast_route($self, \&pc16, 1, @_);
1844 }
1845
1846 sub route_pc17
1847 {
1848         my $self = shift;
1849         broadcast_route($self, \&pc17, 1, @_);
1850 }
1851
1852 sub route_pc19
1853 {
1854         my $self = shift;
1855         broadcast_route($self, \&pc19, scalar @_, @_);
1856 }
1857
1858 sub route_pc21
1859 {
1860         my $self = shift;
1861         broadcast_route($self, \&pc21, scalar @_, @_);
1862 }
1863
1864 sub route_pc24
1865 {
1866         my $self = shift;
1867         broadcast_route($self, \&pc24, 1, @_);
1868 }
1869
1870 sub route_pc41
1871 {
1872         my $self = shift;
1873         broadcast_route($self, \&pc41, 1, @_);
1874 }
1875
1876 sub route_pc50
1877 {
1878         my $self = shift;
1879         broadcast_route($self, \&pc50, 1, @_);
1880 }
1881
1882 sub in_filter_route
1883 {
1884         my $self = shift;
1885         my $r = shift;
1886         my ($filter, $hops) = (1, 1);
1887
1888         if ($self->{inroutefilter}) {
1889                 ($filter, $hops) = $self->{inroutefilter}->it($self->{call}, $self->{dxcc}, $self->{itu}, $self->{cq}, $r->call, $r->dxcc, $r->itu, $r->cq);
1890                 dbg("PCPROT: $self->{call}/" . $r->call . ' rejected by in_filter_route') if !$filter && isdbg('chanerr');
1891         }
1892         return $filter;
1893 }
1894
1895 sub eph_dup
1896 {
1897         my $s = shift;
1898
1899         # chop the end off
1900         $s =~ s/\^H\d\d?\^?\~?$//;
1901         return 1 if exists $eph{$s};
1902         $eph{$s} = $main::systime;
1903         return undef;
1904 }
1905
1906 sub eph_del_regex
1907 {
1908         my $regex = shift;
1909         my ($key, $val);
1910         while (($key, $val) = each %eph) {
1911                 if ($key =~ m{$regex}) {
1912                         delete $eph{$key};
1913                 }
1914         }
1915 }
1916
1917 sub eph_clean
1918 {
1919         my ($key, $val);
1920
1921         while (($key, $val) = each %eph) {
1922                 if ($main::systime - $val > 90) {
1923                         delete $eph{$key};
1924                 }
1925         }
1926 }
1927
1928 1;
1929 __END__