perl/DXCommandmode.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the user facing command mode for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 # $Id$
   8 #
   9
  10 package DXCommandmode;
  11
  12 use POSIX;
  13
  14 @ISA = qw(DXChannel);
  15
  16 use DXUtil;
  17 use DXChannel;
  18 use DXUser;
  19 use DXVars;
  20 use DXDebug;
  21 use DXM;
  22 use DXLog;
  23 use DXLogPrint;
  24 use DXBearing;
  25 use CmdAlias;
  26 use Filter;
  27 use Minimuf;
  28 use DXDb;
  29 use AnnTalk;
  30 use WCY;
  31 use Sun;
  32 use Internet;
  33 use Script;
  34 use Net::Telnet;
  35
  36 use strict;
  37 use vars qw(%Cache %cmd_cache $errstr %aliases $scriptbase $maxerrors %nothereslug $maxbadcount);
  38
  39 %Cache = ();                                    # cache of dynamically loaded routine's mod times
  40 %cmd_cache = ();                                # cache of short names
  41 $errstr = ();                                   # error string from eval
  42 %aliases = ();                                  # aliases for (parts of) commands
  43 $scriptbase = "$main::root/scripts"; # the place where all users start scripts go
  44 $maxerrors = 20;                                # the maximum number of concurrent errors allowed before disconnection
  45 $maxbadcount = 3;                               # no of bad words allowed before disconnection
  46
  47
  48 use vars qw($VERSION $BRANCH);
  49 $VERSION = sprintf( "%d.%03d", q$Revision$ =~ /(\d+)\.(\d+)/ );
  50 $BRANCH = sprintf( "%d.%03d", q$Revision$ =~ /\d+\.\d+\.(\d+)\.(\d+)/  || (0,0));
  51 $main::build += $VERSION;
  52 $main::branch += $BRANCH;
  53
  54 #
  55 # obtain a new connection this is derived from dxchannel
  56 #
  57
  58 sub new
  59 {
  60         my $self = DXChannel::alloc(@_);
  61
  62         # routing, this must go out here to prevent race condx
  63         my $pkg = shift;
  64         my $call = shift;
  65         my @rout = $main::routeroot->add_user($call, Route::here(1));
  66
  67         # ALWAYS output the user
  68         my $ref = Route::User::get($call);
  69         DXProt::route_pc16($main::me, $main::routeroot, $ref) if $ref;
  70
  71         return $self;
  72 }
  73
  74 # this is how a a connection starts, you get a hello message and the motd with
  75 # possibly some other messages asking you to set various things up if you are
  76 # new (or nearly new and slacking) user.
  77
  78 sub start
  79 {
  80         my ($self, $line, $sort) = @_;
  81         my $user = $self->{user};
  82         my $call = $self->{call};
  83         my $name = $user->{name};
  84
  85         # log it
  86         my $host = $self->{conn}->{peerhost} || "unknown";
  87         Log('DXCommand', "$call connected from $host");
  88
  89         $self->{name} = $name ? $name : $call;
  90         $self->send($self->msg('l2',$self->{name}));
  91         $self->state('prompt');         # a bit of room for further expansion, passwords etc
  92         $self->{priv} = $user->priv || 0;
  93         $self->{lang} = $user->lang || $main::lang || 'en';
  94         $self->{pagelth} = $user->pagelth || 20;
  95         ($self->{width}) = $line =~ /width=(\d+)/; $line =~ s/\s*width=\d+\s*//;
  96         $self->{width} = 80 unless $self->{width} && $self->{width} > 80;
  97         $self->{consort} = $line;       # save the connection type
  98
  99         # set some necessary flags on the user if they are connecting
 100         $self->{beep} = $user->wantbeep;
 101         $self->{ann} = $user->wantann;
 102         $self->{wwv} = $user->wantwwv;
 103         $self->{wcy} = $user->wantwcy;
 104         $self->{talk} = $user->wanttalk;
 105         $self->{wx} = $user->wantwx;
 106         $self->{dx} = $user->wantdx;
 107         $self->{logininfo} = $user->wantlogininfo;
 108         $self->{ann_talk} = $user->wantann_talk;
 109         $self->{here} = 1;
 110         $self->{prompt} = $user->prompt if $user->prompt;
 111
 112         # sort out registration
 113         if ($main::reqreg == 1) {
 114                 $self->{registered} = $user->registered;
 115         } elsif ($main::reqreg == 2) {
 116                 $self->{registered} = !$user->registered;
 117         } else {
 118                 $self->{registered} = 1;
 119         }
 120
 121
 122         # decide which motd to send
 123         my $motd = "${main::motd}_nor" unless $self->{registered};
 124         $motd = $main::motd unless $motd && -e $motd;
 125         $self->send_file($motd) if -e $motd;
 126
 127         # sort out privilege reduction
 128         $self->{priv} = 0 if $line =~ /^(ax|te)/ && !$self->conn->{usedpasswd};
 129
 130         # get the filters
 131         $self->{spotsfilter} = Filter::read_in('spots', $call, 0) || Filter::read_in('spots', 'user_default', 0);
 132         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0) || Filter::read_in('wwv', 'user_default', 0);
 133         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0) || Filter::read_in('wcy', 'user_default', 0);
 134         $self->{annfilter} = Filter::read_in('ann', $call, 0) || Filter::read_in('ann', 'user_default', 0) ;
 135
 136         # clean up qra locators
 137         my $qra = $user->qra;
 138         $qra = undef if ($qra && !DXBearing::is_qra($qra));
 139         unless ($qra) {
 140                 my $lat = $user->lat;
 141                 my $long = $user->long;
 142                 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
 143         }
 144
 145         # decide on echo
 146         my $echo = $user->wantecho;
 147         unless ($echo) {
 148                 $self->send_now('E', "0");
 149                 $self->send($self->msg('echow'));
 150                 $self->conn->echo($echo) if $self->conn->can('echo');
 151         }
 152
 153         $self->tell_login('loginu');
 154
 155         # do we need to send a forward/opernam?
 156         my $lastoper = $user->lastoper || 0;
 157         my $homenode = $user->homenode || "";
 158         if ($homenode eq $main::mycall && $main::systime >= $lastoper + $DXUser::lastoperinterval) {
 159                 run_cmd($main::me, "forward/opernam $call");
 160                 $user->lastoper($main::systime + ((int rand(10)) * 86400));
 161         }
 162
 163         # run a script send the output to the punter
 164         my $script = new Script(lc $call) || new Script('user_default');
 165         $script->run($self) if $script;
 166
 167         # send cluster info
 168         my $info = Route::cluster();
 169         $self->send("Cluster:$info");
 170
 171         # send prompts and things
 172         $self->send($self->msg('namee1')) if !$user->name;
 173         $self->send($self->msg('qthe1')) if !$user->qth;
 174         $self->send($self->msg('qll')) if !$user->qra || (!$user->lat && !$user->long);
 175         $self->send($self->msg('hnodee1')) if !$user->qth;
 176         $self->send($self->msg('m9')) if DXMsg::for_me($call);
 177         $self->prompt;
 178 }
 179
 180 #
 181 # This is the normal command prompt driver
 182 #
 183
 184 sub normal
 185 {
 186         my $self = shift;
 187         my $cmdline = shift;
 188         my @ans;
 189
 190         # save this for them's that need it
 191         my $rawline = $cmdline;
 192
 193         # remove leading and trailing spaces
 194         $cmdline =~ s/^\s*(.*)\s*$/$1/;
 195
 196         if ($self->{state} eq 'page') {
 197                 my $i = $self->{pagelth};
 198                 my $ref = $self->{pagedata};
 199                 my $tot = @$ref;
 200
 201                 # abort if we get a line starting in with a
 202                 if ($cmdline =~ /^a/io) {
 203                         undef $ref;
 204                         $i = 0;
 205                 }
 206
 207                 # send a tranche of data
 208                 while ($i-- > 0 && @$ref) {
 209                         my $line = shift @$ref;
 210                         $line =~ s/\s+$//o;     # why am having to do this?
 211                         $self->send($line);
 212                 }
 213
 214                 # reset state if none or else chuck out an intermediate prompt
 215                 if ($ref && @$ref) {
 216                         $tot -= $self->{pagelth};
 217                         $self->send($self->msg('page', $tot));
 218                 } else {
 219                         $self->state('prompt');
 220                 }
 221         } elsif ($self->{state} eq 'sysop') {
 222                 my $passwd = $self->{user}->passwd;
 223                 if ($passwd) {
 224                         my @pw = grep {$_ !~ /\s/} split //, $passwd;
 225                         my @l = @{$self->{passwd}};
 226                         my $str = "$pw[$l[0]].*$pw[$l[1]].*$pw[$l[2]].*$pw[$l[3]].*$pw[$l[4]]";
 227                         if ($cmdline =~ /$str/) {
 228                                 $self->{priv} = $self->{user}->priv;
 229                         } else {
 230                                 $self->send($self->msg('sorry'));
 231                         }
 232                 } else {
 233                         $self->send($self->msg('sorry'));
 234                 }
 235                 $self->state('prompt');
 236         } elsif ($self->{state} eq 'passwd') {
 237                 my $passwd = $self->{user}->passwd;
 238                 if ($passwd && $cmdline eq $passwd) {
 239                         $self->send($self->msg('pw1'));
 240                         $self->state('passwd1');
 241                 } else {
 242                         $self->conn->{echo} = $self->conn->{decho};
 243                         delete $self->conn->{decho};
 244                         $self->send($self->msg('sorry'));
 245                         $self->state('prompt');
 246                 }
 247         } elsif ($self->{state} eq 'passwd1') {
 248                 $self->{passwd} = $cmdline;
 249                 $self->send($self->msg('pw2'));
 250                 $self->state('passwd2');
 251         } elsif ($self->{state} eq 'passwd2') {
 252                 if ($cmdline eq $self->{passwd}) {
 253                         $self->{user}->passwd($cmdline);
 254                         $self->send($self->msg('pw3'));
 255                 } else {
 256                         $self->send($self->msg('pw4'));
 257                 }
 258                 $self->conn->{echo} = $self->conn->{decho};
 259                 delete $self->conn->{decho};
 260                 $self->state('prompt');
 261         } elsif ($self->{state} eq 'talk') {
 262                 if ($cmdline =~ m{^(?:/EX|/ABORT)}i) {
 263                         for (@{$self->{talklist}}) {
 264                                 $self->send_talks($_,  $self->msg('talkend'));
 265                         }
 266                         $self->state('prompt');
 267                         delete $self->{talklist};
 268                 } elsif ($cmdline =~ m|^/+\w+|) {
 269                         $cmdline =~ s|^/||;
 270                         my $sendit = $cmdline =~ s|^/+||;
 271                         my @in = $self->run_cmd($cmdline);
 272                         $self->send_ans(@in);
 273                         if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 274                                 foreach my $l (@in) {
 275                                         my @bad;
 276                                         if (@bad = BadWords::check($l)) {
 277                                                 $self->badcount(($self->badcount||0) + @bad);
 278                                                 Log('DXCommand', "$self->{call} swore: $l");
 279                                         } else {
 280                                                 for (@{$self->{talklist}}) {
 281                                                         $self->send_talks($_, $l);
 282                                                 }
 283                                         }
 284                                 }
 285                         }
 286                         $self->send($self->talk_prompt);
 287                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 288                         # send what has been said to whoever is in this person's talk list
 289                         my @bad;
 290                         if (@bad = BadWords::check($cmdline)) {
 291                                 $self->badcount(($self->badcount||0) + @bad);
 292                                 Log('DXCommand', "$self->{call} swore: $cmdline");
 293                         } else {
 294                                 for (@{$self->{talklist}}) {
 295                                         $self->send_talks($_, $rawline);
 296                                 }
 297                         }
 298                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 299                 } else {
 300                         # for safety
 301                         $self->state('prompt');
 302                 }
 303         } elsif (my $func = $self->{func}) {
 304                 no strict 'refs';
 305                 my @ans;
 306                 if (ref $self->{edit}) {
 307                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 308                 } else {
 309                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 310                 }
 311                 if ($@) {
 312                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 313                         delete $self->{func};
 314                         $self->state('prompt');
 315                         undef $@;
 316                 }
 317                 $self->send_ans(@ans);
 318         } else {
 319                 $self->send_ans(run_cmd($self, $cmdline));
 320         }
 321
 322         # check for excessive swearing
 323         if ($self->{badcount} && $self->{badcount} >= $maxbadcount) {
 324                 Log('DXCommand', "$self->{call} logged out for excessive swearing");
 325                 $self->disconnect;
 326                 return;
 327         }
 328
 329         # send a prompt only if we are in a prompt state
 330         $self->prompt() if $self->{state} =~ /^prompt/o;
 331 }
 332
 333 # send out the talk messages taking into account vias and connectivity
 334 sub send_talks
 335 {
 336         my ($self, $ent, $line) = @_;
 337
 338         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 339         $to = $ent unless $to;
 340         my $call = $via ? $via : $to;
 341         my $clref = Route::get($call);
 342         my $dxchan = $clref->dxchan if $clref;
 343         if ($dxchan) {
 344                 $dxchan->talk($self->{call}, $to, $via, $line);
 345         } else {
 346                 $self->send($self->msg('disc2', $via ? $via : $to));
 347                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 348                 if (@l) {
 349                         $self->{talklist} = \@l;
 350                 } else {
 351                         delete $self->{talklist};
 352                         $self->state('prompt');
 353                 }
 354         }
 355 }
 356
 357 sub talk_prompt
 358 {
 359         my $self = shift;
 360         my @call;
 361         for (@{$self->{talklist}}) {
 362                 my ($to, $via) = /(\S+)>(\S+)/;
 363                 $to = $_ unless $to;
 364                 push @call, $to;
 365         }
 366         return $self->msg('talkprompt', join(',', @call));
 367 }
 368
 369 #
 370 # send a load of stuff to a command user with page prompting
 371 # and stuff
 372 #
 373
 374 sub send_ans
 375 {
 376         my $self = shift;
 377
 378         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 379                 my $i;
 380                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 381                         my $line = shift @_;
 382                         $line =~ s/\s+$//o;     # why am having to do this?
 383                         $self->send($line);
 384                 }
 385                 $self->{pagedata} =  [ @_ ];
 386                 $self->state('page');
 387                 $self->send($self->msg('page', scalar @_));
 388         } else {
 389                 for (@_) {
 390                         if (defined $_) {
 391                                 $self->send($_);
 392                         } else {
 393                                 $self->send('');
 394                         }
 395                 }
 396         }
 397 }
 398 #
 399 # this is the thing that runs the command, it is done like this for the
 400 # benefit of remote command execution
 401 #
 402
 403 sub run_cmd
 404 {
 405         my $self = shift;
 406         my $user = $self->{user};
 407         my $call = $self->{call};
 408         my $cmdline = shift;
 409         my @ans;
 410
 411
 412         return () if length $cmdline == 0;
 413
 414         # strip out //
 415         $cmdline =~ s|//|/|og;
 416
 417         # split the command line up into parts, the first part is the command
 418         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 419         $args = "" unless defined $args;
 420
 421         if ($cmd) {
 422
 423                 my ($path, $fcmd);
 424
 425                 dbg("cmd: $cmd") if isdbg('command');
 426
 427                 # alias it if possible
 428                 my $acmd = CmdAlias::get_cmd($cmd);
 429                 if ($acmd) {
 430                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 431                         $args = "" unless defined $args;
 432                         dbg("aliased cmd: $cmd $args") if isdbg('command');
 433                 }
 434
 435                 # first expand out the entry to a command
 436                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 437                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") if !$path || !$fcmd;
 438
 439                 if ($path && $cmd) {
 440                         dbg("path: $cmd cmd: $fcmd") if isdbg('command');
 441
 442                         my $package = find_cmd_name($path, $fcmd);
 443                         return ($@) if $@;
 444
 445                         if ($package) {
 446                                 no strict 'refs';
 447                                 dbg("package: $package") if isdbg('command');
 448                                 eval { @ans = &$package($self, $args) };
 449                                 return (DXDebug::shortmess($@)) if $@;
 450                         }
 451                 } else {
 452                         dbg("cmd: $cmd not found") if isdbg('command');
 453                         if (++$self->{errors} > $maxerrors) {
 454                                 $self->send($self->msg('e26'));
 455                                 $self->disconnect;
 456                                 return ();
 457                         } else {
 458                                 return ($self->msg('e1'));
 459                         }
 460                 }
 461         }
 462
 463         my $ok = shift @ans;
 464         if ($ok) {
 465                 delete $self->{errors};
 466         } else {
 467                 if (++$self->{errors} > $maxerrors) {
 468                         $self->send($self->msg('e26'));
 469                         $self->disconnect;
 470                         return ();
 471                 }
 472         }
 473         return map {s/([^\s])\s+$/$1/; $_} @ans;
 474 }
 475
 476 #
 477 # This is called from inside the main cluster processing loop and is used
 478 # for despatching commands that are doing some long processing job
 479 #
 480 sub process
 481 {
 482         my $t = time;
 483         my @dxchan = DXChannel->get_all();
 484         my $dxchan;
 485
 486         foreach $dxchan (@dxchan) {
 487                 next if $dxchan->sort ne 'U';
 488
 489                 # send a prompt if no activity out on this channel
 490                 if ($t >= $dxchan->t + $main::user_interval) {
 491                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 492                         $dxchan->t($t);
 493                 }
 494         }
 495
 496         while (my ($k, $v) = each %nothereslug) {
 497                 if ($main::systime >= $v + 300) {
 498                         delete $nothereslug{$k};
 499                 }
 500         }
 501 }
 502
 503 #
 504 # finish up a user context
 505 #
 506 sub disconnect
 507 {
 508         my $self = shift;
 509         my $call = $self->call;
 510
 511         return if $self->{disconnecting}++;
 512
 513         delete $self->{senddbg};
 514
 515         my $uref = Route::User::get($call);
 516         my @rout;
 517         if ($uref) {
 518                 @rout = $main::routeroot->del_user($uref);
 519                 dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 520
 521                 # issue a pc17 to everybody interested
 522                 DXProt::route_pc17($main::me, $main::routeroot, $uref);
 523         } else {
 524                 confess "trying to disconnect a non existant user $call";
 525         }
 526
 527         # I was the last node visited
 528     $self->user->node($main::mycall);
 529
 530         # send info to all logged in thingies
 531         $self->tell_login('logoutu');
 532
 533         Log('DXCommand', "$call disconnected");
 534
 535         $self->SUPER::disconnect;
 536 }
 537
 538 #
 539 # short cut to output a prompt
 540 #
 541
 542 sub prompt
 543 {
 544         my $self = shift;
 545         if ($self->{prompt}) {
 546                 $self->send($self->{prompt});
 547         } else {
 548                 $self->send($self->msg($self->here ? 'pr' : 'pr2', $self->call, cldate($main::systime), ztime($main::systime)));
 549         }
 550 }
 551
 552 # broadcast a message to all users [except those mentioned after buffer]
 553 sub broadcast
 554 {
 555         my $pkg = shift;                        # ignored
 556         my $s = shift;                          # the line to be rebroadcast
 557
 558     foreach my $dxchan (DXChannel->get_all()) {
 559                 next unless $dxchan->{sort} eq 'U'; # only interested in user channels
 560                 next if grep $dxchan == $_, @_;
 561                 $dxchan->send($s);                      # send it
 562         }
 563 }
 564
 565 # gimme all the users
 566 sub get_all
 567 {
 568         return grep {$_->{sort} eq 'U'} DXChannel->get_all();
 569 }
 570
 571 # run a script for this user
 572 sub run_script
 573 {
 574         my $self = shift;
 575         my $silent = shift || 0;
 576
 577 }
 578
 579 #
 580 # search for the command in the cache of short->long form commands
 581 #
 582
 583 sub search
 584 {
 585         my ($path, $short_cmd, $suffix) = @_;
 586         my ($apath, $acmd);
 587
 588         # commands are lower case
 589         $short_cmd = lc $short_cmd;
 590         dbg("command: $path $short_cmd\n") if isdbg('command');
 591
 592         # do some checking for funny characters
 593         return () if $short_cmd =~ /\/$/;
 594
 595         # return immediately if we have it
 596         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 597         if ($apath && $acmd) {
 598                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 599                 return ($apath, $acmd);
 600         }
 601
 602         # if not guess
 603         my @parts = split '/', $short_cmd;
 604         my $dirfn;
 605         my $curdir = $path;
 606         my $p;
 607         my $i;
 608         my @lparts;
 609
 610         for ($i = 0; $i < @parts; $i++) {
 611                 my  $p = $parts[$i];
 612                 opendir(D, $curdir) or confess "can't open $curdir $!";
 613                 my @ls = readdir D;
 614                 closedir D;
 615                 my $l;
 616                 foreach $l (sort @ls) {
 617                         next if $l =~ /^\./;
 618                         if ($i < $#parts) {             # we are dealing with directories
 619                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 620                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 621                                         $dirfn .= "$l/";
 622                                         $curdir .= "/$l";
 623                                         last;
 624                                 }
 625                         } else {                        # we are dealing with commands
 626                                 @lparts = split /\./, $l;
 627                                 next if $lparts[$#lparts] ne $suffix;        # only look for .$suffix files
 628                                 if ($p eq substr($l, 0, length $p)) {
 629                                         pop @lparts; #  remove the suffix
 630                                         $l = join '.', @lparts;
 631                                         #                 chop $dirfn;               # remove trailing /
 632                                         $dirfn = "" unless $dirfn;
 633                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 634                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 635                                         return ($path, "$dirfn$l");
 636                                 }
 637                         }
 638                 }
 639         }
 640         return ();
 641 }
 642
 643 # clear the command name cache
 644 sub clear_cmd_cache
 645 {
 646         no strict 'refs';
 647
 648         for (keys %Cache) {
 649                 undef *{$_} unless /cmd_cache/;
 650                 dbg("Undefining cmd $_") if isdbg('command');
 651         }
 652         %cmd_cache = ();
 653         %Cache = ();
 654 }
 655
 656 #
 657 # the persistant execution of things from the command directories
 658 #
 659 #
 660 # This allows perl programs to call functions dynamically
 661 #
 662 # This has been nicked directly from the perlembed pages
 663 #
 664
 665 #require Devel::Symdump;
 666
 667 sub valid_package_name {
 668         my($string) = @_;
 669         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 670
 671         $string =~ s|/|_|g;
 672         return "cmd_$string";
 673 }
 674
 675 #
 676 # this bit of magic finds a command in the offered directory
 677 sub find_cmd_name {
 678         my $path = shift;
 679         my $cmdname = shift;
 680         my $package = valid_package_name($cmdname);
 681         my $filename = "$path/$cmdname.pl";
 682         my $mtime = -M $filename;
 683
 684         # return if we can't find it
 685         $errstr = undef;
 686         unless (defined $mtime) {
 687                 $errstr = DXM::msg('e1');
 688                 return undef;
 689         }
 690
 691         if(defined $Cache{$package}->{mtime} &&$Cache{$package}->{mtime} <= $mtime) {
 692                 #we have compiled this subroutine already,
 693                 #it has not been updated on disk, nothing left to do
 694                 #print STDERR "already compiled $package->handler\n";
 695                 ;
 696         } else {
 697
 698                 my $sub = readfilestr($filename);
 699                 unless ($sub) {
 700                         $errstr = "Syserr: can't open '$filename' $!";
 701                         return undef;
 702                 };
 703
 704                 #wrap the code into a subroutine inside our unique package
 705                 my $eval = qq( sub $package { $sub } );
 706
 707                 if (isdbg('eval')) {
 708                         my @list = split /\n/, $eval;
 709                         my $line;
 710                         for (@list) {
 711                                 dbg($_ . "\n") if isdbg('eval');
 712                         }
 713                 }
 714
 715                 # get rid of any existing sub and try to compile the new one
 716                 no strict 'refs';
 717
 718                 if (exists $Cache{$package}) {
 719                         dbg("Redefining $package") if isdbg('command');
 720                         undef *$package;
 721                 } else {
 722                         dbg("Defining $package") if isdbg('command');
 723                 }
 724                 eval $eval;
 725
 726                 $Cache{$package} = {mtime => $mtime };
 727
 728         }
 729
 730         return $package;
 731 }
 732
 733 sub local_send
 734 {
 735         my ($self, $let, $buf) = @_;
 736         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk') {
 737                 if ($self->{enhanced}) {
 738                         $self->send_later($let, $buf);
 739                 } else {
 740                         $self->send($buf);
 741                 }
 742         } else {
 743                 $self->delay($buf);
 744         }
 745 }
 746
 747 # send a talk message here
 748 sub talk
 749 {
 750         my ($self, $from, $to, $via, $line) = @_;
 751         $line =~ s/\\5E/\^/g;
 752         $self->local_send('T', "$to de $from: $line") if $self->{talk};
 753         Log('talk', $to, $from, $via?$via:$main::mycall, $line);
 754         # send a 'not here' message if required
 755         unless ($self->{here} && $from ne $to) {
 756                 my $key = "$to$from";
 757                 unless (exists $nothereslug{$key}) {
 758                         my ($ref, $dxchan);
 759                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 760                                 my $name = $self->user->name || $to;
 761                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 762                                 $nothereslug{$key} = $main::systime;
 763                                 $dxchan->talk($to, $from, undef, $s);
 764                         }
 765                 }
 766         }
 767 }
 768
 769 # send an announce
 770 sub announce
 771 {
 772         my $self = shift;
 773         my $line = shift;
 774         my $isolate = shift;
 775         my $to = shift;
 776         my $target = shift;
 777         my $text = shift;
 778         my ($filter, $hops);
 779
 780         if (!$self->{ann_talk} && $to ne $self->{call}) {
 781                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 782                 return if $call;
 783         }
 784
 785         if ($self->{annfilter}) {
 786                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 787                 return unless $filter;
 788         }
 789
 790         unless ($self->{ann}) {
 791                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
 792         }
 793         return if $target eq 'SYSOP' && $self->{priv} < 5;
 794         my $buf = "$to$target de $_[0]: $text";
 795         $buf =~ s/\%5E/^/g;
 796         $buf .= "\a\a" if $self->{beep};
 797         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
 798 }
 799
 800 # send a dx spot
 801 sub dx_spot
 802 {
 803         my $self = shift;
 804         my $line = shift;
 805         my $isolate = shift;
 806         my ($filter, $hops);
 807
 808         return unless $self->{dx};
 809
 810         if ($self->{spotsfilter}) {
 811                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
 812                 return unless $filter;
 813         }
 814
 815
 816         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
 817
 818         my $t = ztime($_[2]);
 819         my $loc;
 820         my $clth = $self->{consort} eq 'local' ? 29 : 30;
 821         my $comment = substr $_[3], 0, $clth;
 822         $comment .= ' ' x ($clth - length($comment));
 823         my $ref = DXUser->get_current($_[4]);
 824         if ($ref) {
 825                 $loc = $ref->qra || '' if $self->{user}->wantgrid;
 826                 $loc = ' ' . substr($loc, 0, 4) if $loc;
 827         }
 828         $loc = "" unless $loc;
 829
 830         if ($self->{user}->wantdxitu) {
 831                 $loc = ' ' . sprintf("%2d", $_[10]) if defined $_[10];
 832                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . sprintf("%2d", $_[8]) if defined $_[8];
 833         } elsif ($self->{user}->wantdxcq) {
 834                 $loc = ' ' . sprintf("%2d", $_[11]) if defined $_[11];
 835                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . sprintf("%2d", $_[9]) if defined $_[9];
 836         } elsif ($self->{user}->wantusstate) {
 837                 $loc = ' ' . $_[13] if $_[13];
 838                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . $_[12] if $_[12];
 839         }
 840
 841         my $buf = sprintf "DX de %-7.7s%11.1f  %-12.12s %-s $t$loc", "$_[4]:", $_[0], $_[1], $comment;
 842
 843         $buf .= "\a\a" if $self->{beep};
 844         $buf =~ s/\%5E/^/g;
 845         $self->local_send('X', $buf);
 846 }
 847
 848 sub wwv
 849 {
 850         my $self = shift;
 851         my $line = shift;
 852         my $isolate = shift;
 853         my ($filter, $hops);
 854
 855         return unless $self->{wwv};
 856
 857         if ($self->{wwvfilter}) {
 858                 ($filter, $hops) = $self->{wwvfilter}->it(@_ );
 859                 return unless $filter;
 860         }
 861
 862         my $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
 863         $buf .= "\a\a" if $self->{beep};
 864         $self->local_send('V', $buf);
 865 }
 866
 867 sub wcy
 868 {
 869         my $self = shift;
 870         my $line = shift;
 871         my $isolate = shift;
 872         my ($filter, $hops);
 873
 874         return unless $self->{wcy};
 875
 876         if ($self->{wcyfilter}) {
 877                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
 878                 return unless $filter;
 879         }
 880
 881         my $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
 882         $buf .= "\a\a" if $self->{beep};
 883         $self->local_send('Y', $buf);
 884 }
 885
 886 # broadcast debug stuff to all interested parties
 887 sub broadcast_debug
 888 {
 889         my $s = shift;                          # the line to be rebroadcast
 890
 891         foreach my $dxchan (DXChannel->get_all) {
 892                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
 893                 $dxchan->send_later('L', $s);
 894         }
 895 }
 896
 897
 898 1;
 899 __END__