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 #
   8 #
   9
  10 package DXCommandmode;
  11
  12 #use POSIX;
  13
  14 @ISA = qw(DXChannel);
  15
  16 use POSIX qw(:math_h);
  17 use DXUtil;
  18 use DXChannel;
  19 use DXUser;
  20 use DXVars;
  21 use DXDebug;
  22 use DXM;
  23 use DXLog;
  24 use DXLogPrint;
  25 use DXBearing;
  26 use CmdAlias;
  27 use Filter;
  28 use Minimuf;
  29 use DXDb;
  30 use AnnTalk;
  31 use WCY;
  32 use Sun;
  33 use Internet;
  34 use Script;
  35 use Net::Telnet;
  36 use QSL;
  37 use DB_File;
  38 use VE7CC;
  39 use DXXml;
  40
  41 use strict;
  42 use vars qw(%Cache %cmd_cache $errstr %aliases $scriptbase %nothereslug
  43         $maxbadcount $msgpolltime $default_pagelth $cmdimportdir);
  44
  45 %Cache = ();                                    # cache of dynamically loaded routine's mod times
  46 %cmd_cache = ();                                # cache of short names
  47 $errstr = ();                                   # error string from eval
  48 %aliases = ();                                  # aliases for (parts of) commands
  49 $scriptbase = "$main::root/scripts"; # the place where all users start scripts go
  50 $maxbadcount = 3;                               # no of bad words allowed before disconnection
  51 $msgpolltime = 3600;                    # the time between polls for new messages
  52 $cmdimportdir = "$main::root/cmd_import"; # the base directory for importing command scripts
  53                                           # this does not exist as default, you need to create it manually
  54                                           #
  55
  56 #
  57 # obtain a new connection this is derived from dxchannel
  58 #
  59
  60 sub new
  61 {
  62         my $self = DXChannel::alloc(@_);
  63
  64         # routing, this must go out here to prevent race condx
  65         my $pkg = shift;
  66         my $call = shift;
  67 #       my @rout = $main::routeroot->add_user($call, Route::here(1));
  68         DXProt::_add_thingy($main::routeroot, [$call, 0, 0, 1]);
  69
  70         # ALWAYS output the user
  71         my $ref = Route::User::get($call);
  72         if ($ref) {
  73                 $main::me->route_pc16($main::mycall, undef, $main::routeroot, $ref);
  74                 $main::me->route_pc92a($main::mycall, undef, $main::routeroot, $ref) unless $DXProt::pc92_slug_changes;
  75         }
  76
  77         return $self;
  78 }
  79
  80 # this is how a a connection starts, you get a hello message and the motd with
  81 # possibly some other messages asking you to set various things up if you are
  82 # new (or nearly new and slacking) user.
  83
  84 sub start
  85 {
  86         my ($self, $line, $sort) = @_;
  87         my $user = $self->{user};
  88         my $call = $self->{call};
  89         my $name = $user->{name};
  90
  91         # log it
  92         my $host = $self->{conn}->{peerhost};
  93         $host ||= "AGW Port #$self->{conn}->{agwport}" if exists $self->{conn}->{agwport};
  94         $host ||= "unknown";
  95         LogDbg('DXCommand', "$call connected from $host");
  96
  97         $self->{name} = $name ? $name : $call;
  98         $self->send($self->msg('l2',$self->{name}));
  99         $self->state('prompt');         # a bit of room for further expansion, passwords etc
 100         $self->{priv} = $user->priv || 0;
 101         $self->{lang} = $user->lang || $main::lang || 'en';
 102         my $pagelth = $user->pagelth;
 103         $pagelth = $default_pagelth unless defined $pagelth;
 104         $self->{pagelth} = $pagelth;
 105         ($self->{width}) = $line =~ /width=(\d+)/; $line =~ s/\s*width=\d+\s*//;
 106         $self->{width} = 80 unless $self->{width} && $self->{width} > 80;
 107         $self->{consort} = $line;       # save the connection type
 108
 109         # set some necessary flags on the user if they are connecting
 110         $self->{beep} = $user->wantbeep;
 111         $self->{ann} = $user->wantann;
 112         $self->{wwv} = $user->wantwwv;
 113         $self->{wcy} = $user->wantwcy;
 114         $self->{talk} = $user->wanttalk;
 115         $self->{wx} = $user->wantwx;
 116         $self->{dx} = $user->wantdx;
 117         $self->{logininfo} = $user->wantlogininfo;
 118         $self->{ann_talk} = $user->wantann_talk;
 119         $self->{here} = 1;
 120         $self->{prompt} = $user->prompt if $user->prompt;
 121
 122         # sort out new dx spot stuff
 123         $user->wantdxcq(0) unless defined $user->{wantdxcq};
 124         $user->wantdxitu(0) unless defined $user->{wantdxitu};
 125         $user->wantusstate(0) unless defined $user->{wantusstate};
 126
 127         # sort out registration
 128         if ($main::reqreg == 1) {
 129                 $self->{registered} = $user->registered;
 130         } elsif ($main::reqreg == 2) {
 131                 $self->{registered} = !$user->registered;
 132         } else {
 133                 $self->{registered} = 1;
 134         }
 135
 136         # send the relevant MOTD
 137         $self->send_motd;
 138
 139         # sort out privilege reduction
 140         $self->{priv} = 0 if $line =~ /^(ax|te)/ && !$self->conn->{usedpasswd};
 141
 142         # get the filters
 143         my $nossid = $call;
 144         $nossid =~ s/-\d+$//;
 145
 146         $self->{spotsfilter} = Filter::read_in('spots', $call, 0)
 147                 || Filter::read_in('spots', $nossid, 0)
 148                         || Filter::read_in('spots', 'user_default', 0);
 149         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0)
 150                 || Filter::read_in('wwv', $nossid, 0)
 151                         || Filter::read_in('wwv', 'user_default', 0);
 152         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0)
 153                 || Filter::read_in('wcy', $nossid, 0)
 154                         || Filter::read_in('wcy', 'user_default', 0);
 155         $self->{annfilter} = Filter::read_in('ann', $call, 0)
 156                 || Filter::read_in('ann', $nossid, 0)
 157                         || Filter::read_in('ann', 'user_default', 0) ;
 158
 159         # clean up qra locators
 160         my $qra = $user->qra;
 161         $qra = undef if ($qra && !DXBearing::is_qra($qra));
 162         unless ($qra) {
 163                 my $lat = $user->lat;
 164                 my $long = $user->long;
 165                 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
 166         }
 167
 168         # decide on echo
 169         my $echo = $user->wantecho;
 170         unless ($echo) {
 171                 $self->send_now('E', "0");
 172                 $self->send($self->msg('echow'));
 173                 $self->conn->echo($echo) if $self->conn->can('echo');
 174         }
 175
 176         $self->tell_login('loginu');
 177         $self->tell_buddies('loginb');
 178
 179         # do we need to send a forward/opernam?
 180         my $lastoper = $user->lastoper || 0;
 181         my $homenode = $user->homenode || "";
 182         if ($homenode eq $main::mycall && $main::systime >= $lastoper + $DXUser::lastoperinterval) {
 183                 run_cmd($main::me, "forward/opernam $call");
 184                 $user->lastoper($main::systime + ((int rand(10)) * 86400));
 185         }
 186
 187         # run a script send the output to the punter
 188         my $script = new Script(lc $call) || new Script('user_default');
 189         $script->run($self) if $script;
 190
 191         # send cluster info
 192         my $info = Route::cluster();
 193         $self->send("Cluster:$info");
 194
 195         # send prompts for qth, name and things
 196         $self->send($self->msg('namee1')) if !$user->name;
 197         $self->send($self->msg('qthe1')) if !$user->qth;
 198         $self->send($self->msg('qll')) if !$user->qra || (!$user->lat && !$user->long);
 199         $self->send($self->msg('hnodee1')) if !$user->qth;
 200         $self->send($self->msg('m9')) if DXMsg::for_me($call);
 201
 202         # send out any buddy messages for other people that are online
 203         foreach my $call (@{$user->buddies}) {
 204                 my $ref = Route::User::get($call);
 205                 if ($ref) {
 206                         foreach my $node ($ref->parents) {
 207                                 $self->send($self->msg($node eq $main::mycall ? 'loginb' : 'loginbn', $call, $node));
 208                         }
 209                 }
 210         }
 211
 212         $self->lastmsgpoll($main::systime);
 213         $self->prompt;
 214 }
 215
 216 #
 217 # This is the normal command prompt driver
 218 #
 219
 220 sub normal
 221 {
 222         my $self = shift;
 223         my $cmdline = shift;
 224         my @ans;
 225
 226         # save this for them's that need it
 227         my $rawline = $cmdline;
 228
 229         # remove leading and trailing spaces
 230         $cmdline =~ s/^\s*(.*)\s*$/$1/;
 231
 232         if ($self->{state} eq 'page') {
 233                 my $i = $self->{pagelth};
 234                 my $ref = $self->{pagedata};
 235                 my $tot = @$ref;
 236
 237                 # abort if we get a line starting in with a
 238                 if ($cmdline =~ /^a/io) {
 239                         undef $ref;
 240                         $i = 0;
 241                 }
 242
 243                 # send a tranche of data
 244                 while ($i-- > 0 && @$ref) {
 245                         my $line = shift @$ref;
 246                         $line =~ s/\s+$//o;     # why am having to do this?
 247                         $self->send($line);
 248                 }
 249
 250                 # reset state if none or else chuck out an intermediate prompt
 251                 if ($ref && @$ref) {
 252                         $tot -= $self->{pagelth};
 253                         $self->send($self->msg('page', $tot));
 254                 } else {
 255                         $self->state('prompt');
 256                 }
 257         } elsif ($self->{state} eq 'sysop') {
 258                 my $passwd = $self->{user}->passwd;
 259                 if ($passwd) {
 260                         my @pw = grep {$_ !~ /\s/} split //, $passwd;
 261                         my @l = @{$self->{passwd}};
 262                         my $str = "$pw[$l[0]].*$pw[$l[1]].*$pw[$l[2]].*$pw[$l[3]].*$pw[$l[4]]";
 263                         if ($cmdline =~ /$str/) {
 264                                 $self->{priv} = $self->{user}->priv;
 265                         } else {
 266                                 $self->send($self->msg('sorry'));
 267                         }
 268                 } else {
 269                         $self->send($self->msg('sorry'));
 270                 }
 271                 $self->state('prompt');
 272         } elsif ($self->{state} eq 'passwd') {
 273                 my $passwd = $self->{user}->passwd;
 274                 if ($passwd && $cmdline eq $passwd) {
 275                         $self->send($self->msg('pw1'));
 276                         $self->state('passwd1');
 277                 } else {
 278                         $self->conn->{echo} = $self->conn->{decho};
 279                         delete $self->conn->{decho};
 280                         $self->send($self->msg('sorry'));
 281                         $self->state('prompt');
 282                 }
 283         } elsif ($self->{state} eq 'passwd1') {
 284                 $self->{passwd} = $cmdline;
 285                 $self->send($self->msg('pw2'));
 286                 $self->state('passwd2');
 287         } elsif ($self->{state} eq 'passwd2') {
 288                 if ($cmdline eq $self->{passwd}) {
 289                         $self->{user}->passwd($cmdline);
 290                         $self->send($self->msg('pw3'));
 291                 } else {
 292                         $self->send($self->msg('pw4'));
 293                 }
 294                 $self->conn->{echo} = $self->conn->{decho};
 295                 delete $self->conn->{decho};
 296                 $self->state('prompt');
 297         } elsif ($self->{state} eq 'talk' || $self->{state} eq 'chat') {
 298                 if ($cmdline =~ m{^(?:/EX|/ABORT)}i) {
 299                         for (@{$self->{talklist}}) {
 300                                 if ($self->{state} eq 'talk') {
 301                                         $self->send_talks($_,  $self->msg('talkend'));
 302                                 } else {
 303                                         $self->local_send('C', $self->msg('chatend', $_));
 304                                 }
 305                         }
 306                         $self->state('prompt');
 307                         delete $self->{talklist};
 308                 } elsif ($cmdline =~ m|^/+\w+|) {
 309                         $cmdline =~ s|^/||;
 310                         my $sendit = $cmdline =~ s|^/+||;
 311                         my @in = $self->run_cmd($cmdline);
 312                         $self->send_ans(@in);
 313                         if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 314                                 foreach my $l (@in) {
 315                                         my @bad;
 316                                         if (@bad = BadWords::check($l)) {
 317                                                 $self->badcount(($self->badcount||0) + @bad);
 318                                                 LogDbg('DXCommand', "$self->{call} swore: $l with words:" . join(',', @bad) . ")");
 319                                         } else {
 320                                                 for (@{$self->{talklist}}) {
 321                                                         if ($self->{state} eq 'talk') {
 322                                                                 $self->send_talks($_, $l);
 323                                                         } else {
 324                                                                 send_chats($self, $_, $l)
 325                                                         }
 326                                                 }
 327                                         }
 328                                 }
 329                         }
 330                         $self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 331                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 332                         # send what has been said to whoever is in this person's talk list
 333                         my @bad;
 334                         if (@bad = BadWords::check($cmdline)) {
 335                                 $self->badcount(($self->badcount||0) + @bad);
 336                                 LogDbg('DXCommand', "$self->{call} swore: $cmdline with words:" . join(',', @bad) . ")");
 337                         } else {
 338                                 for (@{$self->{talklist}}) {
 339                                         if ($self->{state} eq 'talk') {
 340                                                 $self->send_talks($_, $rawline);
 341                                         } else {
 342                                                 send_chats($self, $_, $rawline);
 343                                         }
 344                                 }
 345                         }
 346                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 347                         $self->send($self->chat_prompt) if $self->{state} eq 'chat';
 348                 } else {
 349                         # for safety
 350                         $self->state('prompt');
 351                 }
 352         } elsif (my $func = $self->{func}) {
 353                 no strict 'refs';
 354                 my @ans;
 355                 if (ref $self->{edit}) {
 356                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 357                 } else {
 358                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 359                 }
 360                 if ($@) {
 361                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 362                         delete $self->{func};
 363                         $self->state('prompt');
 364                         undef $@;
 365                 }
 366                 $self->send_ans(@ans);
 367         } else {
 368                 $self->send_ans(run_cmd($self, $cmdline));
 369         }
 370
 371         # check for excessive swearing
 372         if ($self->{badcount} && $self->{badcount} >= $maxbadcount) {
 373                 LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 374                 $self->disconnect;
 375                 return;
 376         }
 377
 378         # send a prompt only if we are in a prompt state
 379         $self->prompt() if $self->{state} =~ /^prompt/o;
 380 }
 381
 382 # send out the talk messages taking into account vias and connectivity
 383 sub send_talks
 384 {
 385         my ($self, $ent, $line) = @_;
 386
 387         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 388         $to = $ent unless $to;
 389         my $call = $via && $via ne '*' ? $via : $to;
 390         my $clref = Route::get($call);
 391         my $dxchan = $clref->dxchan if $clref;
 392         if ($dxchan) {
 393                 $dxchan->talk($self->{call}, $to, undef, $line);
 394         } else {
 395                 $self->send($self->msg('disc2', $via ? $via : $to));
 396                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 397                 if (@l) {
 398                         $self->{talklist} = \@l;
 399                 } else {
 400                         delete $self->{talklist};
 401                         $self->state('prompt');
 402                 }
 403         }
 404 }
 405
 406 sub send_chats
 407 {
 408         my $self = shift;
 409         my $target = shift;
 410         my $text = shift;
 411
 412         my $msgid = DXProt::nextchatmsgid();
 413         $text = "#$msgid $text";
 414         $main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text));
 415 }
 416
 417 sub special_prompt
 418 {
 419         my $self = shift;
 420         my $prompt = shift;
 421         my @call;
 422         for (@{$self->{talklist}}) {
 423                 my ($to, $via) = /(\S+)>(\S+)/;
 424                 $to = $_ unless $to;
 425                 push @call, $to;
 426         }
 427         return $self->msg($prompt, join(',', @call));
 428 }
 429
 430 sub talk_prompt
 431 {
 432         my $self = shift;
 433         return $self->special_prompt('talkprompt');
 434 }
 435
 436 sub chat_prompt
 437 {
 438         my $self = shift;
 439         return $self->special_prompt('chatprompt');
 440 }
 441
 442 #
 443 # send a load of stuff to a command user with page prompting
 444 # and stuff
 445 #
 446
 447 sub send_ans
 448 {
 449         my $self = shift;
 450
 451         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 452                 my $i;
 453                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 454                         my $line = shift @_;
 455                         $line =~ s/\s+$//o;     # why am having to do this?
 456                         $self->send($line);
 457                 }
 458                 $self->{pagedata} =  [ @_ ];
 459                 $self->state('page');
 460                 $self->send($self->msg('page', scalar @_));
 461         } else {
 462                 for (@_) {
 463                         if (defined $_) {
 464                                 $self->send($_);
 465                         } else {
 466                                 $self->send('');
 467                         }
 468                 }
 469         }
 470 }
 471
 472 #
 473 # this is the thing that runs the command, it is done like this for the
 474 # benefit of remote command execution
 475 #
 476
 477 sub run_cmd
 478 {
 479         my $self = shift;
 480         my $user = $self->{user};
 481         my $call = $self->{call};
 482         my $cmdline = shift;
 483         my @ans;
 484
 485         return () if length $cmdline == 0;
 486
 487         # split the command line up into parts, the first part is the command
 488         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 489         $args = "" unless defined $args;
 490
 491         if ($cmd) {
 492
 493                 # check cmd
 494                 if ($cmd =~ m|^/| || $cmd =~ m|[^-?\w/]|) {
 495                         LogDbg('DXCommand', "cmd: invalid characters in '$cmd'");
 496                         return $self->_error_out('e1');
 497                 }
 498
 499                 # strip out // on command only
 500                 $cmd =~ s|//|/|g;
 501
 502                 my ($path, $fcmd);
 503
 504                 dbg("cmd: $cmd") if isdbg('command');
 505
 506                 # alias it if possible
 507                 my $acmd = CmdAlias::get_cmd($cmd);
 508                 if ($acmd) {
 509                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 510                         $args = "" unless defined $args;
 511                         dbg("cmd: aliased $cmd $args") if isdbg('command');
 512                 }
 513
 514                 # first expand out the entry to a command
 515                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 516                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") unless $path && $fcmd;
 517
 518                 if ($path && $cmd) {
 519                         dbg("cmd: path $cmd cmd: $fcmd") if isdbg('command');
 520
 521                         my $package = find_cmd_name($path, $fcmd);
 522                         return ($@) if $@;
 523
 524                         if ($package && DXCommandmode->can($package)) {
 525                                 no strict 'refs';
 526                                 dbg("cmd: package $package") if isdbg('command');
 527                                 eval { @ans = &$package($self, $args) };
 528                                 return (DXDebug::shortmess($@)) if $@;
 529                         } else {
 530                                 dbg("cmd: $package not present") if isdbg('command');
 531                                 return $self->_error_out('e1');
 532                         }
 533                 } else {
 534                         dbg("cmd: $cmd not found") if isdbg('command');
 535                         return $self->_error_out('e1');
 536                 }
 537         }
 538
 539         my $ok = shift @ans;
 540         if ($ok) {
 541                 delete $self->{errors};
 542         } else {
 543                 if (++$self->{errors} > $DXChannel::maxerrors) {
 544                         $self->send($self->msg('e26'));
 545                         $self->disconnect;
 546                         return ();
 547                 }
 548         }
 549         return map {s/([^\s])\s+$/$1/; $_} @ans;
 550 }
 551
 552 #
 553 # This is called from inside the main cluster processing loop and is used
 554 # for despatching commands that are doing some long processing job
 555 #
 556 sub process
 557 {
 558         my $t = time;
 559         my @dxchan = DXChannel::get_all();
 560         my $dxchan;
 561
 562         foreach $dxchan (@dxchan) {
 563                 next if $dxchan->sort ne 'U';
 564
 565                 # send a outstanding message prompt if required
 566                 if ($t >= $dxchan->lastmsgpoll + $msgpolltime) {
 567                         $dxchan->send($dxchan->msg('m9')) if DXMsg::for_me($dxchan->call);
 568                         $dxchan->lastmsgpoll($t);
 569                 }
 570
 571                 # send a prompt if no activity out on this channel
 572                 if ($t >= $dxchan->t + $main::user_interval) {
 573                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 574                         $dxchan->t($t);
 575                 }
 576         }
 577
 578         while (my ($k, $v) = each %nothereslug) {
 579                 if ($main::systime >= $v + 300) {
 580                         delete $nothereslug{$k};
 581                 }
 582         }
 583
 584         import_cmd();
 585 }
 586
 587 #
 588 # finish up a user context
 589 #
 590 sub disconnect
 591 {
 592         my $self = shift;
 593         my $call = $self->call;
 594
 595         return if $self->{disconnecting}++;
 596
 597         delete $self->{senddbg};
 598
 599         my $uref = Route::User::get($call);
 600         my @rout;
 601         if ($uref) {
 602 #               @rout = $main::routeroot->del_user($uref);
 603                 @rout = DXProt::_del_thingy($main::routeroot, [$call, 0]);
 604
 605                 dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 606
 607                 # issue a pc17 to everybody interested
 608                 $main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
 609                 $main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes;
 610         } else {
 611                 confess "trying to disconnect a non existant user $call";
 612         }
 613
 614         # I was the last node visited
 615     $self->user->node($main::mycall);
 616
 617         # send info to all logged in thingies
 618         $self->tell_login('logoutu');
 619         $self->tell_buddies('logoutb');
 620
 621         LogDbg('DXCommand', "$call disconnected");
 622
 623         $self->SUPER::disconnect;
 624 }
 625
 626 #
 627 # short cut to output a prompt
 628 #
 629
 630 sub prompt
 631 {
 632         my $self = shift;
 633
 634         return if $self->{gtk};         # 'cos prompts are not a concept that applies here
 635
 636         my $call = $self->call;
 637         my $date = cldate($main::systime);
 638         my $time = ztime($main::systime);
 639         my $prompt = $self->{prompt} || $self->msg('pr');
 640
 641         $call = "($call)" unless $self->here;
 642         $prompt =~ s/\%C/$call/g;
 643         $prompt =~ s/\%D/$date/g;
 644         $prompt =~ s/\%T/$time/g;
 645         $prompt =~ s/\%M/$main::mycall/g;
 646
 647         $self->send($prompt);
 648 }
 649
 650 # broadcast a message to all users [except those mentioned after buffer]
 651 sub broadcast
 652 {
 653         my $pkg = shift;                        # ignored
 654         my $s = shift;                          # the line to be rebroadcast
 655
 656     foreach my $dxchan (DXChannel::get_all()) {
 657                 next unless $dxchan->{sort} eq 'U'; # only interested in user channels
 658                 next if grep $dxchan == $_, @_;
 659                 $dxchan->send($s);                      # send it
 660         }
 661 }
 662
 663 # gimme all the users
 664 sub get_all
 665 {
 666         return grep {$_->{sort} eq 'U'} DXChannel::get_all();
 667 }
 668
 669 # run a script for this user
 670 sub run_script
 671 {
 672         my $self = shift;
 673         my $silent = shift || 0;
 674
 675 }
 676
 677 #
 678 # search for the command in the cache of short->long form commands
 679 #
 680
 681 sub search
 682 {
 683         my ($path, $short_cmd, $suffix) = @_;
 684         my ($apath, $acmd);
 685
 686         # commands are lower case
 687         $short_cmd = lc $short_cmd;
 688         dbg("command: $path $short_cmd\n") if isdbg('command');
 689
 690         # do some checking for funny characters
 691         return () if $short_cmd =~ /\/$/;
 692
 693         # return immediately if we have it
 694         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 695         if ($apath && $acmd) {
 696                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 697                 return ($apath, $acmd);
 698         }
 699
 700         # if not guess
 701         my @parts = split '/', $short_cmd;
 702         my $dirfn;
 703         my $curdir = $path;
 704
 705         while (my $p = shift @parts) {
 706                 opendir(D, $curdir) or confess "can't open $curdir $!";
 707                 my @ls = readdir D;
 708                 closedir D;
 709
 710                 # if this isn't the last part
 711                 if (@parts) {
 712                         my $found;
 713                         foreach my $l (sort @ls) {
 714                                 next if $l =~ /^\./;
 715                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 716                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 717                                         $dirfn .= "$l/";
 718                                         $curdir .= "/$l";
 719                                         $found++;
 720                                         last;
 721                                 }
 722                         }
 723                         # only proceed if we find the directory asked for
 724                         return () unless $found;
 725                 } else {
 726                         foreach my $l (sort @ls) {
 727                                 next if $l =~ /^\./;
 728                                 next unless $l =~ /\.$suffix$/;
 729                                 if ($p eq substr($l, 0, length $p)) {
 730                                         $l =~ s/\.$suffix$//;
 731                                         $dirfn = "" unless $dirfn;
 732                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 733                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 734                                         return ($path, "$dirfn$l");
 735                                 }
 736                         }
 737                 }
 738         }
 739
 740         return ();
 741 }
 742
 743 # clear the command name cache
 744 sub clear_cmd_cache
 745 {
 746         no strict 'refs';
 747
 748         for (keys %Cache) {
 749                 undef *{$_} unless /cmd_cache/;
 750                 dbg("Undefining cmd $_") if isdbg('command');
 751         }
 752         %cmd_cache = ();
 753         %Cache = ();
 754 }
 755
 756 #
 757 # the persistant execution of things from the command directories
 758 #
 759 #
 760 # This allows perl programs to call functions dynamically
 761 #
 762 # This has been nicked directly from the perlembed pages
 763 #
 764
 765 #require Devel::Symdump;
 766
 767 sub valid_package_name {
 768         my($string) = @_;
 769         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 770
 771         $string =~ s|/|_|g;
 772         return "cmd_$string";
 773 }
 774
 775 #
 776 # this bit of magic finds a command in the offered directory
 777 sub find_cmd_name {
 778         my $path = shift;
 779         my $cmdname = shift;
 780         my $package = valid_package_name($cmdname);
 781         my $filename = "$path/$cmdname.pl";
 782         my $mtime = -M $filename;
 783
 784         # return if we can't find it
 785         $errstr = undef;
 786         unless (defined $mtime) {
 787                 $errstr = DXM::msg('e1');
 788                 return undef;
 789         }
 790
 791         if(defined $Cache{$package}->{mtime} &&$Cache{$package}->{mtime} <= $mtime) {
 792                 #we have compiled this subroutine already,
 793                 #it has not been updated on disk, nothing left to do
 794                 #print STDERR "already compiled $package->handler\n";
 795                 ;
 796         } else {
 797
 798                 my $sub = readfilestr($filename);
 799                 unless ($sub) {
 800                         $errstr = "Syserr: can't open '$filename' $!";
 801                         return undef;
 802                 };
 803
 804                 #wrap the code into a subroutine inside our unique package
 805                 my $eval = qq( sub $package { $sub } );
 806
 807                 if (isdbg('eval')) {
 808                         my @list = split /\n/, $eval;
 809                         my $line;
 810                         for (@list) {
 811                                 dbg($_ . "\n") if isdbg('eval');
 812                         }
 813                 }
 814
 815                 # get rid of any existing sub and try to compile the new one
 816                 no strict 'refs';
 817
 818                 if (exists $Cache{$package}) {
 819                         dbg("find_cmd_name: Redefining $package") if isdbg('command');
 820                         undef *$package;
 821                 } else {
 822                         dbg("find_cmd_name: Defining $package") if isdbg('command');
 823                 }
 824
 825                 eval $eval;
 826
 827                 $Cache{$package} = {mtime => $mtime } unless $@;
 828
 829         }
 830
 831         return $package;
 832 }
 833
 834 sub send
 835 {
 836         my $self = shift;
 837         if ($self->{gtk}) {
 838                 for (@_) {
 839                         $self->SUPER::send(dd(['cmd',$_]));
 840                 }
 841         } else {
 842                 $self->SUPER::send(@_);
 843         }
 844 }
 845
 846 sub local_send
 847 {
 848         my ($self, $let, $buf) = @_;
 849         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk' || $self->{state} eq 'chat') {
 850                 if ($self->{enhanced}) {
 851                         $self->send_later($let, $buf);
 852                 } else {
 853                         $self->send($buf);
 854                 }
 855         } else {
 856                 $self->delay($buf);
 857         }
 858 }
 859
 860 # send a talk message here
 861 sub talk
 862 {
 863         my ($self, $from, $to, $via, $line, $onode) = @_;
 864         $line =~ s/\\5E/\^/g;
 865         if ($self->{talk}) {
 866                 if ($self->{gtk}) {
 867                         $self->local_send('T', dd(['talk',$to,$from,$via,$line]));
 868                 } else {
 869                         $self->local_send('T', "$to de $from: $line");
 870                 }
 871         }
 872         Log('talk', $to, $from, '<' . ($onode || '*'), $line);
 873         # send a 'not here' message if required
 874         unless ($self->{here} && $from ne $to) {
 875                 my $key = "$to$from";
 876                 unless (exists $nothereslug{$key}) {
 877                         my ($ref, $dxchan);
 878                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 879                                 my $name = $self->user->name || $to;
 880                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 881                                 $nothereslug{$key} = $main::systime;
 882                                 $dxchan->talk($to, $from, undef, $s);
 883                         }
 884                 }
 885         }
 886 }
 887
 888 # send an announce
 889 sub announce
 890 {
 891         my $self = shift;
 892         my $line = shift;
 893         my $isolate = shift;
 894         my $to = shift;
 895         my $target = shift;
 896         my $text = shift;
 897         my ($filter, $hops);
 898
 899         if (!$self->{ann_talk} && $to ne $self->{call}) {
 900                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 901                 return if $call;
 902         }
 903
 904         if ($self->{annfilter}) {
 905                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 906                 return unless $filter;
 907         }
 908
 909         unless ($self->{ann}) {
 910                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
 911         }
 912         return if $target eq 'SYSOP' && $self->{priv} < 5;
 913         my $buf;
 914         if ($self->{gtk}) {
 915                 $buf = dd(['ann', $to, $target, $text, @_])
 916         } else {
 917                 $buf = "$to$target de $_[0]: $text";
 918                 $buf =~ s/\%5E/^/g;
 919                 $buf .= "\a\a" if $self->{beep};
 920         }
 921         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
 922 }
 923
 924 # send a chat
 925 sub chat
 926 {
 927         my $self = shift;
 928         my $line = shift;
 929         my $isolate = shift;
 930         my $target = shift;
 931         my $to = shift;
 932         my $text = shift;
 933         my ($filter, $hops);
 934
 935         return unless grep uc $_ eq $target, @{$self->{user}->{group}};
 936
 937         $text =~ s/^\#\d+ //;
 938         my $buf;
 939         if ($self->{gtk}) {
 940                 $buf = dd(['chat', $to, $target, $text, @_])
 941         } else {
 942                 $buf = "$target de $_[0]: $text";
 943                 $buf =~ s/\%5E/^/g;
 944                 $buf .= "\a\a" if $self->{beep};
 945         }
 946         $self->local_send('C', $buf);
 947 }
 948
 949 sub format_dx_spot
 950 {
 951         my $self = shift;
 952
 953         my $t = ztime($_[2]);
 954         my $loc = '';
 955         my $clth = $self->{consort} eq 'local' ? 29 : 30;
 956         my $comment = substr (($_[3] || ''), 0, $clth);
 957         $comment .= ' ' x ($clth - length($comment));
 958         if ($self->{user}->wantgrid) {
 959                 my $ref = DXUser::get_current($_[4]);
 960                 if ($ref) {
 961                         $loc = $ref->qra || '';
 962                         $loc = ' ' . substr($loc, 0, 4) if $loc;
 963                 }
 964         }
 965
 966         if ($self->{user}->wantdxitu) {
 967                 $loc = ' ' . sprintf("%2d", $_[10]) if defined $_[10];
 968                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . sprintf("%2d", $_[8]) if defined $_[8];
 969         } elsif ($self->{user}->wantdxcq) {
 970                 $loc = ' ' . sprintf("%2d", $_[11]) if defined $_[11];
 971                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . sprintf("%2d", $_[9]) if defined $_[9];
 972         } elsif ($self->{user}->wantusstate) {
 973                 $loc = ' ' . $_[13] if $_[13];
 974                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . $_[12] if $_[12];
 975         }
 976
 977         return sprintf "DX de %-7.7s%11.1f  %-12.12s %-s $t$loc", "$_[4]:", $_[0], $_[1], $comment;
 978 }
 979
 980 # send a dx spot
 981 sub dx_spot
 982 {
 983         my $self = shift;
 984         my $line = shift;
 985         my $isolate = shift;
 986         return unless $self->{dx};
 987
 988         my ($filter, $hops);
 989
 990         if ($self->{spotsfilter}) {
 991                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
 992                 return unless $filter;
 993         }
 994
 995         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
 996
 997         my $buf;
 998         if ($self->{ve7cc}) {
 999                 $buf = VE7CC::dx_spot($self, @_);
1000         } elsif ($self->{gtk}) {
1001                 my ($dxloc, $byloc);
1002
1003                 my $ref = DXUser::get_current($_[4]);
1004                 if ($ref) {
1005                         $byloc = $ref->qra;
1006                         $byloc = substr($byloc, 0, 4) if $byloc;
1007                 }
1008
1009                 my $spot = $_[1];
1010                 $spot =~ s|/\w{1,4}$||;
1011                 $ref = DXUser::get_current($spot);
1012                 if ($ref) {
1013                         $dxloc = $ref->qra;
1014                         $dxloc = substr($dxloc, 0, 4) if $dxloc;
1015                 }
1016                 $buf = dd(['dx', @_, ($dxloc||''), ($byloc||'')]);
1017
1018         } else {
1019                 $buf = $self->format_dx_spot(@_);
1020                 $buf .= "\a\a" if $self->{beep};
1021                 $buf =~ s/\%5E/^/g;
1022         }
1023
1024         $self->local_send('X', $buf);
1025 }
1026
1027 sub wwv
1028 {
1029         my $self = shift;
1030         my $line = shift;
1031         my $isolate = shift;
1032         my ($filter, $hops);
1033
1034         return unless $self->{wwv};
1035
1036         if ($self->{wwvfilter}) {
1037                 ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_] );
1038                 return unless $filter;
1039         }
1040
1041         my $buf;
1042         if ($self->{gtk}) {
1043                 $buf = dd(['wwv', @_])
1044         } else {
1045                 $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1046                 $buf .= "\a\a" if $self->{beep};
1047         }
1048
1049         $self->local_send('V', $buf);
1050 }
1051
1052 sub wcy
1053 {
1054         my $self = shift;
1055         my $line = shift;
1056         my $isolate = shift;
1057         my ($filter, $hops);
1058
1059         return unless $self->{wcy};
1060
1061         if ($self->{wcyfilter}) {
1062                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
1063                 return unless $filter;
1064         }
1065
1066         my $buf;
1067         if ($self->{gtk}) {
1068                 $buf = dd(['wcy', @_])
1069         } else {
1070                 $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1071                 $buf .= "\a\a" if $self->{beep};
1072         }
1073         $self->local_send('Y', $buf);
1074 }
1075
1076 # broadcast debug stuff to all interested parties
1077 sub broadcast_debug
1078 {
1079         my $s = shift;                          # the line to be rebroadcast
1080
1081         foreach my $dxchan (DXChannel::get_all) {
1082                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
1083                 if ($dxchan->{gtk}) {
1084                         $dxchan->send_later('L', dd(['db', $s]));
1085                 } else {
1086                         $dxchan->send_later('L', $s);
1087                 }
1088         }
1089 }
1090
1091 sub do_entry_stuff
1092 {
1093         my $self = shift;
1094         my $line = shift;
1095         my @out;
1096
1097         if ($self->state eq 'enterbody') {
1098                 my $loc = $self->{loc} || confess "local var gone missing" ;
1099                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
1100                         no strict 'refs';
1101                         push @out, &{$loc->{endaction}}($self);          # like this for < 5.8.0
1102                         $self->func(undef);
1103                         $self->state('prompt');
1104                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
1105                         push @out, $self->msg('m10');
1106                         delete $loc->{lines};
1107                         delete $self->{loc};
1108                         $self->func(undef);
1109                         $self->state('prompt');
1110                 } else {
1111                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1112                         # i.e. it ain't and end or abort, therefore store the line
1113                 }
1114         } else {
1115                 confess "Invalid state $self->{state}";
1116         }
1117         return @out;
1118 }
1119
1120 sub store_startup_script
1121 {
1122         my $self = shift;
1123         my $loc = $self->{loc} || confess "local var gone missing" ;
1124         my @out;
1125         my $call = $loc->{call} || confess "callsign gone missing";
1126         confess "lines array gone missing" unless ref $loc->{lines};
1127         my $r = Script::store($call, $loc->{lines});
1128         if (defined $r) {
1129                 if ($r) {
1130                         push @out, $self->msg('m19', $call, $r);
1131                 } else {
1132                         push @out, $self->msg('m20', $call);
1133                 }
1134         } else {
1135                 push @out, "error opening startup script $call $!";
1136         }
1137         return @out;
1138 }
1139
1140 # Import any commands contained in any files in import_cmd directory
1141 #
1142 # If the filename has a recogisable callsign as some delimited part
1143 # of it, then this is the user the command will be run as.
1144 #
1145 sub import_cmd
1146 {
1147         # are there any to do in this directory?
1148         return unless -d $cmdimportdir;
1149         unless (opendir(DIR, $cmdimportdir)) {
1150                 LogDbg('err', "can\'t open $cmdimportdir $!");
1151                 return;
1152         }
1153
1154         my @names = readdir(DIR);
1155         closedir(DIR);
1156         my $name;
1157         foreach $name (@names) {
1158                 next if $name =~ /^\./;
1159
1160                 my $s = Script->new($name, $cmdimportdir);
1161                 if ($s) {
1162                         LogDbg('DXCommand', "Run import cmd file $name");
1163                         my @cat = split /[^A-Za-z0-9]+/, $name;
1164                         my ($call) = grep {is_callsign(uc $_)} @cat;
1165                         $call ||= $main::mycall;
1166                         $call = uc $call;
1167                         my @out;
1168
1169
1170                         $s->inscript(0);        # switch off script checks
1171
1172                         if ($call eq $main::mycall) {
1173                                 @out = $s->run($main::me, 1);
1174                         } else {
1175                                 my $dxchan = DXChannel::get($call);
1176                             if ($dxchan) {
1177                                         @out = $s->run($dxchan, 1);
1178                                 } else {
1179                                         my $u = DXUser::get($call);
1180                                         if ($u) {
1181                                                 $dxchan = $main::me;
1182                                                 my $old = $dxchan->{call};
1183                                                 my $priv = $dxchan->{priv};
1184                                                 my $user = $dxchan->{user};
1185                                                 $dxchan->{call} = $call;
1186                                                 $dxchan->{priv} = $u->priv;
1187                                                 $dxchan->{user} = $u;
1188                                                 @out = $s->run($dxchan, 1);
1189                                                 $dxchan->{call} = $call;
1190                                                 $dxchan->{priv} = $priv;
1191                                                 $dxchan->{user} = $user;
1192                                         } else {
1193                                                 LogDbg('err', "Trying to run import cmd for non-existant user $call");
1194                                         }
1195                                 }
1196                         }
1197                         $s->erase;
1198                         for (@out) {
1199                                 LogDbg('DXCommand', "Import cmd $name/$call: $_");
1200                         }
1201                 } else {
1202                         LogDbg('err', "Failed to open $cmdimportdir/$name $!");
1203                         unlink "$cmdimportdir/$name";
1204                 }
1205         }
1206 }
1207
1208 sub print_find_reply
1209 {
1210         my ($self, $node, $target, $flag, $ms) = @_;
1211         my $sort = $flag == 2 ? "External" : "Local";
1212         $self->send("$sort $target found at $node in $ms ms" );
1213 }
1214
1215 # send the most relevant motd
1216 sub send_motd
1217 {
1218         my $self = shift;
1219         my $motd;
1220
1221         unless ($self->{registered}) {
1222                 $motd = "${main::motd}_nor_$self->{lang}";
1223                 $motd = "${main::motd}_nor" unless -e $motd;
1224         }
1225         $motd = "${main::motd}_$self->{lang}" unless $motd && -e $motd;
1226         $motd = $main::motd unless $motd && -e $motd;
1227         if ($self->conn->{csort} eq 'ax25') {
1228                 if ($motd) {
1229                         $motd = "${motd}_ax25" if -e "${motd}_ax25";
1230                 } else {
1231                         $motd = "${main::motd}_ax25" if -e "${main::motd}_ax25";
1232                 }
1233         }
1234         $self->send_file($motd) if -e $motd;
1235 }
1236 1;
1237 __END__