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