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