perl/DXCommandmode.pm

   1 #!/usr/bin/perl
   2 #
   3 # This module impliments the user facing command mode for a dx cluster
   4 #
   5 # Copyright (c) 1998 Dirk Koopman G1TLH
   6 #
   7 #
   8 #
   9
  10 package DXCommandmode;
  11
  12 #use POSIX;
  13
  14 @ISA = qw(DXChannel);
  15
  16 use 5.10.1;
  17
  18 use POSIX qw(:math_h);
  19 use DXUtil;
  20 use DXChannel;
  21 use DXUser;
  22 use DXVars;
  23 use DXDebug;
  24 use DXM;
  25 use DXLog;
  26 use DXLogPrint;
  27 use DXBearing;
  28 use CmdAlias;
  29 use Filter;
  30 use Minimuf;
  31 use DXDb;
  32 use AnnTalk;
  33 use WCY;
  34 use Sun;
  35 use Internet;
  36 use Script;
  37 use QSL;
  38 use DB_File;
  39 use VE7CC;
  40 use DXXml;
  41 use AsyncMsg;
  42 use JSON;
  43 use Time::HiRes qw(gettimeofday tv_interval);
  44
  45 use Mojo::IOLoop;
  46 use DXSubprocess;
  47 use Mojo::UserAgent;
  48 use DXCIDR;
  49
  50 use strict;
  51 use vars qw(%Cache %cmd_cache $errstr %aliases $scriptbase %nothereslug
  52         $maxbadcount $msgpolltime $default_pagelth $cmdimportdir $users $maxusers
  53     $maxcmdlth $maxcmdcount $cmdinterval
  54 );
  55
  56 %Cache = ();                                    # cache of dynamically loaded routine's mod times
  57 %cmd_cache = ();                                # cache of short names
  58 $errstr = ();                                   # error string from eval
  59 %aliases = ();                                  # aliases for (parts of) commands
  60 $scriptbase = "$main::root/scripts"; # the place where all users start scripts go
  61 $maxbadcount = 3;                               # no of bad words allowed before disconnection
  62 $msgpolltime = 3600;                    # the time between polls for new messages
  63 $cmdimportdir = "$main::root/cmd_import"; # the base directory for importing command scripts
  64                                           # this does not exist as default, you need to create it manually
  65 $users = 0;                                       # no of users on this node currently
  66 $maxusers = 0;                            # max no users on this node for this run
  67 $maxcmdlth = 512;                               # max length of incoming cmd line (including the command and any arguments
  68 $maxcmdcount = 27;                              # max no cmds entering $cmdinterval seconds
  69 $cmdinterval = 20;                              # if user enters more than $maxcmdcount in $cmdinterval seconds, they are logged off
  70
  71 #
  72 # obtain a new connection this is derived from dxchannel
  73 #
  74
  75 sub new
  76 {
  77         my $self = DXChannel::alloc(@_);
  78
  79         # routing, this must go out here to prevent race condx
  80         my $pkg = shift;
  81         my $call = shift;
  82         #       my @rout = $main::routeroot->add_user($call, Route::here(1));
  83         my $ipaddr = alias_localhost($self->hostname);
  84         DXProt::_add_thingy($main::routeroot, [$call, 0, 0, 1, undef, undef, $ipaddr], );
  85
  86         # ALWAYS output the user (except if the updates not enabled)
  87         my $ref = Route::User::get($call);
  88         if ($ref) {
  89                 $main::me->route_pc16($main::mycall, undef, $main::routeroot, $ref);
  90                 $main::me->route_pc92a($main::mycall, undef, $main::routeroot, $ref) unless $DXProt::pc92_slug_changes || ! $DXProt::pc92_ad_enable;
  91         }
  92
  93         return $self;
  94 }
  95
  96 # this is how a a connection starts, you get a hello message and the motd with
  97 # possibly some other messages asking you to set various things up if you are
  98 # new (or nearly new and slacking) user.
  99
 100 sub start
 101 {
 102         my ($self, $line, $sort) = @_;
 103         my $user = $self->{user};
 104         my $call = $self->{call};
 105         my $name = $user->{name};
 106
 107         # log it
 108         my $host = $self->{conn}->peerhost;
 109         $host ||= "AGW Port #$self->{conn}->{agwport}" if exists $self->{conn}->{agwport};
 110         $host ||= "unknown";
 111         $self->{hostname} = $host;
 112
 113         $self->{name} = $name ? $name : $call;
 114         $self->send($self->msg('l2',$self->{name}));
 115         $self->send("Capabilities: ve7cc rbn");
 116         $self->state('prompt');         # a bit of room for further expansion, passwords etc
 117         $self->{priv} = $user->priv || 0;
 118         $self->{lang} = $user->lang || $main::lang || 'en';
 119         my $pagelth = $user->pagelth;
 120         $pagelth = $default_pagelth unless defined $pagelth;
 121         $self->{pagelth} = $pagelth;
 122         ($self->{width}) = $line =~ /\s*width=(\d+)/; $line =~ s/\s*width=\d+//;
 123         $self->{enhanced} = $line =~ /\s+enhanced/; $line =~ s/\s*enhanced//;
 124         if ($line =~ /host=/) {
 125                 my ($h) = $line =~ /host=(\d+\.\d+\.\d+\.\d+)/;
 126                 $line =~ s/\s*host=\d+\.\d+\.\d+\.\d+// if $h;
 127                 unless ($h) {
 128                         ($h) = $line =~ /host=([\da..fA..F:]+)/;
 129                         $line =~ s/\s*host=[\da..fA..F:]+// if $h;
 130                 }
 131                 $self->{hostname} = $h if $h;
 132         }
 133         $self->{width} = 80 unless $self->{width} && $self->{width} > 80;
 134         $self->{consort} = $line;       # save the connection type
 135
 136         LogDbg('DXCommand', "$call connected from $self->{hostname} cols $self->{width}" . ($self->{enhanced}?" enhanced":''));
 137
 138         # set some necessary flags on the user if they are connecting
 139         $self->{beep} = $user->wantbeep;
 140         $self->{ann} = $user->wantann;
 141         $self->{wwv} = $user->wantwwv;
 142         $self->{wcy} = $user->wantwcy;
 143         $self->{talk} = $user->wanttalk;
 144         $self->{wx} = $user->wantwx;
 145         $self->{dx} = $user->wantdx;
 146         $self->{logininfo} = $user->wantlogininfo;
 147         $self->{ann_talk} = $user->wantann_talk;
 148         $self->{wantrbn} = $user->wantrbn;
 149         $self->{here} = 1;
 150         $self->{prompt} = $user->prompt if $user->prompt;
 151         $self->{lastmsgpoll} = 0;
 152         $self->{rbnseeme} = $user->rbnseeme;
 153         RBN::add_seeme($call) if $self->{rbnseeme};
 154
 155         # sort out new dx spot stuff
 156         $user->wantdxcq(0) unless defined $user->{wantdxcq};
 157         $user->wantdxitu(0) unless defined $user->{wantdxitu};
 158         $user->wantusstate(0) unless defined $user->{wantusstate};
 159
 160         # sort out registration
 161         if ($main::reqreg == 2) {
 162                 $self->{registered} = !$user->registered;
 163         } else {
 164                 $self->{registered} = $user->registered;
 165         }
 166
 167         # establish slug queue, if required
 168         $self->{sluggedpcs} = [];
 169         $self->{isslugged} = $DXProt::pc92_slug_changes + $DXProt::last_pc92_slug + 5 if $DXProt::pc92_slug_changes;
 170         $self->{isslugged} = 0 if $self->{priv} || $user->registered || ($user->homenode && $user->homenode eq $main::mycall);
 171
 172         # send the relevant MOTD
 173         $self->send_motd;
 174
 175         # sort out privilege reduction
 176         $self->{priv} = 0 unless $self->{hostname} eq '127.0.0.1' || $self->conn->peerhost eq '127.0.0.1' || $self->{hostname} eq '::1' || $self->conn->{usedpasswd};
 177
 178
 179         Filter::load_dxchan($self, 'spots', 0);
 180         Filter::load_dxchan($self, 'wwv', 0);
 181         Filter::load_dxchan($self, 'wcy', 0);
 182         Filter::load_dxchan($self, 'ann', 0);
 183         Filter::load_dxchan($self, 'rbn', 0);
 184
 185         # clean up qra locators
 186         my $qra = $user->qra;
 187         $qra = undef if ($qra && !DXBearing::is_qra($qra));
 188         unless ($qra) {
 189                 my $lat = $user->lat;
 190                 my $long = $user->long;
 191                 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
 192         }
 193
 194         # decide on echo
 195         my $echo = $user->wantecho;
 196         unless ($echo) {
 197                 $self->send_now('E', "0");
 198                 $self->send($self->msg('echow'));
 199                 $self->conn->echo($echo) if $self->conn->can('echo');
 200         }
 201
 202         $self->tell_login('loginu');
 203         $self->tell_buddies('loginb');
 204
 205         # is this a bad ip address?
 206         if (is_ipaddr($self->{hostname})) {
 207                 $self->{badip} = DXCIDR::find($self->{hostname});
 208         }
 209
 210         # do we need to send a forward/opernam?
 211         my $lastoper = $user->lastoper || 0;
 212         my $homenode = $user->homenode || "";
 213         if ($homenode eq $main::mycall && $main::systime >= $lastoper + $DXUser::lastoperinterval) {
 214                 run_cmd($main::me, "forward/opernam $call");
 215                 $user->lastoper($main::systime + ((int rand(10)) * 86400));
 216         }
 217
 218         # run a script send the output to the punter
 219         my $script = new Script(lc $call) || new Script('user_default');
 220         $script->run($self) if $script;
 221
 222         # send cluster info
 223         $self->send($self->run_cmd("show/cluster"));
 224
 225         # send prompts for qth, name and things
 226         $self->send($self->msg('namee1')) if !$user->name;
 227         $self->send($self->msg('qthe1')) if !$user->qth;
 228         $self->send($self->msg('qll')) if !$user->qra || (!$user->lat && !$user->long);
 229         $self->send($self->msg('hnodee1')) if !$user->qth;
 230         $self->send($self->msg('m9')) if DXMsg::for_me($call);
 231
 232         # send out any buddy messages for other people that are online
 233         foreach my $call (@{$user->buddies}) {
 234                 my $ref = Route::User::get($call);
 235                 if ($ref) {
 236                         foreach my $node ($ref->parents) {
 237                                 $self->send($self->msg($node eq $main::mycall ? 'loginb' : 'loginbn', $call, $node));
 238                         }
 239                 }
 240         }
 241
 242         $self->lastmsgpoll($main::systime);
 243         $self->{user_interval} = $self->user->user_interval || $main::user_interval; # allow user to change idle time between prompts
 244         $self->prompt;
 245
 246         $self->{cmdintstart} = 0; # set when systime > this + cmdinterval and a command entered, cmdcount set to 0
 247         $self->{cmdcount} = 0;             # incremented on a coming in. If this value > $maxcmdcount, disconnect
 248
 249 }
 250
 251 #
 252 # This is the normal command prompt driver
 253 #
 254
 255 sub normal
 256 {
 257         my $self = shift;
 258         my $cmdline = shift;
 259         my @ans;
 260         my @bad;
 261
 262         # save this for them's that need it
 263         my $rawline = $cmdline;
 264
 265         # remove leading and trailing spaces
 266         $cmdline =~ s/^\s*(.*)\s*$/$1/;
 267
 268         if ($self->{state} eq 'page') {
 269                 my $i = $self->{pagelth}-5;
 270                 my $ref = $self->{pagedata};
 271                 my $tot = @$ref;
 272
 273                 # abort if we get a line starting in with a
 274                 if ($cmdline =~ /^a/io) {
 275                         undef $ref;
 276                         $i = 0;
 277                 }
 278
 279                 # send a tranche of data
 280                 for (; $i > 0 && @$ref; --$i) {
 281                         my $line = shift @$ref;
 282                         $line =~ s/\s+$//o;     # why am having to do this?
 283                         $self->send($line);
 284                 }
 285
 286                 # reset state if none or else chuck out an intermediate prompt
 287                 if ($ref && @$ref) {
 288                         $tot -= $self->{pagelth};
 289                         $self->send($self->msg('page', $tot));
 290                 } else {
 291                         $self->state('prompt');
 292                 }
 293         } elsif ($self->{state} eq 'sysop') {
 294                 my $passwd = $self->{user}->passwd;
 295                 if ($passwd) {
 296                         my @pw = grep {$_ !~ /\s/} split //, $passwd;
 297                         my @l = @{$self->{passwd}};
 298                         my $str = "$pw[$l[0]].*$pw[$l[1]].*$pw[$l[2]].*$pw[$l[3]].*$pw[$l[4]]";
 299                         if ($cmdline =~ /$str/) {
 300                                 $self->{priv} = $self->{user}->priv;
 301                         } else {
 302                                 $self->send($self->msg('sorry'));
 303                         }
 304                 } else {
 305                         $self->send($self->msg('sorry'));
 306                 }
 307                 $self->state('prompt');
 308         } elsif ($self->{state} eq 'passwd') {
 309                 my $passwd = $self->{user}->passwd;
 310                 if ($passwd && $cmdline eq $passwd) {
 311                         $self->send($self->msg('pw1'));
 312                         $self->state('passwd1');
 313                 } else {
 314                         $self->conn->{echo} = $self->conn->{decho};
 315                         delete $self->conn->{decho};
 316                         $self->send($self->msg('sorry'));
 317                         $self->state('prompt');
 318                 }
 319         } elsif ($self->{state} eq 'passwd1') {
 320                 $self->{passwd} = $cmdline;
 321                 $self->send($self->msg('pw2'));
 322                 $self->state('passwd2');
 323         } elsif ($self->{state} eq 'passwd2') {
 324                 if ($cmdline eq $self->{passwd}) {
 325                         $self->{user}->passwd($cmdline);
 326                         $self->send($self->msg('pw3'));
 327                 } else {
 328                         $self->send($self->msg('pw4'));
 329                 }
 330                 $self->conn->{echo} = $self->conn->{decho};
 331                 delete $self->conn->{decho};
 332                 $self->state('prompt');
 333         } elsif ($self->{state} eq 'talk' || $self->{state} eq 'chat') {
 334                 if ($cmdline =~ m{^(?:/EX|/ABORT)}i) {
 335                         for (@{$self->{talklist}}) {
 336                                 if ($self->{state} eq 'talk') {
 337                                         $self->send_talks($_,  $self->msg('talkend'));
 338                                 } elsif ($self->{state} eq 'chat') {
 339                                         $self->send_talks($_,  $self->msg('chatend'));
 340                                 } else {
 341                                         $self->local_send('C', $self->msg('chatend', $_));
 342                                 }
 343                         }
 344                         $self->state('prompt');
 345                         delete $self->{talklist};
 346                 } elsif ($cmdline =~ m|^[/\w\\]+|) {
 347                         $cmdline =~ s|^/||;
 348                         my $sendit = ($cmdline = unpad($cmdline));
 349                         if (@bad = BadWords::check($cmdline)) {
 350                                 $self->badcount(($self->badcount||0) + @bad);
 351                                 LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 352                         } else {
 353                                 my $c;
 354                                 my @in;
 355                                 if (($c) = $cmdline =~ /^cmd\s+(.*)$/) {
 356                                         @in = $self->run_cmd($c);
 357                                         $self->send_ans(@in);
 358                                 } else {
 359                                         push @in, $cmdline;
 360                                         if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 361                                                 foreach my $l (@in) {
 362                                                         for (@{$self->{talklist}}) {
 363                                                                 if ($self->{state} eq 'talk') {
 364                                                                         $self->send_talks($_, $l);
 365                                                                 }
 366                                                                 else {
 367                                                                         send_chats($self, $_, $l)
 368                                                                 }
 369                                                         }
 370                                                 }
 371                                         }
 372                                 }
 373                         }
 374                         $self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 375                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 376                         # send what has been said to whoever is in this person's talk list
 377                         if (@bad = BadWords::check($cmdline)) {
 378                                 $self->badcount(($self->badcount||0) + @bad);
 379                                 LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 380                         } else {
 381                                 for (@{$self->{talklist}}) {
 382                                         if ($self->{state} eq 'talk') {
 383                                                 $self->send_talks($_, $rawline);
 384                                         } else {
 385                                                 send_chats($self, $_, $rawline);
 386                                         }
 387                                 }
 388                         }
 389                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 390                         $self->send($self->chat_prompt) if $self->{state} eq 'chat';
 391                 } else {
 392                         # for safety
 393                         $self->state('prompt');
 394                 }
 395         } elsif (my $func = $self->{func}) {
 396                 no strict 'refs';
 397                 my @ans;
 398                 if (ref $self->{edit}) {
 399                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 400                 } else {
 401                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 402                 }
 403                 if ($@) {
 404                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 405                         delete $self->{func};
 406                         $self->state('prompt');
 407                         undef $@;
 408                 }
 409                 $self->send_ans(@ans);
 410         } else {
 411 #               if (@bad = BadWords::check($cmdline)) {
 412 #                       $self->badcount(($self->badcount||0) + @bad);
 413 #                       LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 414                 #               } else {
 415                 my @cmd = split /\s*\\n\s*/, $cmdline;
 416                 foreach my $l (@cmd) {
 417
 418                         # rate limiting code
 419
 420                         if (($self->{cmdintstart} + $cmdinterval <= $main::systime) || $self->{inscript}) {
 421                                 $self->{cmdintstart} = $main::systime;
 422                                 $self->{cmdcount} = 1;
 423                                 dbg("$self->{call} started cmdinterval") if isdbg('cmdcount');
 424                         } else {
 425                                 if (++$self->{cmdcount} > $maxcmdcount) {
 426                                         LogDbg('baduser', qq{User $self->{call} sent $self->{cmdcount} (>= $maxcmdcount) cmds in $cmdinterval seconds starting at } . atime($self->{cmdintstart}) . ", disconnected" );
 427                                         $self->disconnect;
 428                                 }
 429                                 dbg("$self->{call} cmd: '$l' cmdcount = $self->{cmdcount} in $cmdinterval secs") if isdbg('cmdcount');
 430                         }
 431                         $self->send_ans(run_cmd($self, $l));
 432                 }
 433 #               }
 434         }
 435
 436         # check for excessive swearing
 437         if ($maxbadcount && $self->{badcount} && $self->{badcount} >= $maxbadcount) {
 438                 LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 439                 $self->disconnect;
 440                 return;
 441         }
 442
 443         # send a prompt only if we are in a prompt state
 444         $self->prompt() if $self->{state} =~ /^prompt/o;
 445 }
 446
 447 # send out the talk messages taking into account vias and connectivity
 448 sub send_talks
 449 {
 450         my ($self, $ent, $line) = @_;
 451
 452         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 453         $to = $ent unless $to;
 454         my $call = $via && $via ne '*' ? $via : $to;
 455         my $clref = Route::get($call);
 456         my $dxchan = $clref->dxchan if $clref;
 457         if ($dxchan) {
 458                 $dxchan->talk($self->{call}, $to, undef, $line);
 459         } else {
 460                 $self->send($self->msg('disc2', $via ? $via : $to));
 461                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 462                 if (@l) {
 463                         $self->{talklist} = \@l;
 464                 } else {
 465                         delete $self->{talklist};
 466                         $self->state('prompt');
 467                 }
 468         }
 469 }
 470
 471 sub send_chats
 472 {
 473         my $self = shift;
 474         my $target = shift;
 475         my $text = shift;
 476
 477         my $msgid = DXProt::nextchatmsgid();
 478         $text = "#$msgid $text";
 479         my $ipaddr = alias_localhost($self->hostname || '127.0.0.1');
 480         $main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text, undef, $ipaddr));
 481 }
 482
 483 sub special_prompt
 484 {
 485         my $self = shift;
 486         my $prompt = shift;
 487         my @call;
 488         for (@{$self->{talklist}}) {
 489                 my ($to, $via) = /(\S+)>(\S+)/;
 490                 $to = $_ unless $to;
 491                 push @call, $to;
 492         }
 493         return $self->msg($prompt, join(',', @call));
 494 }
 495
 496 sub talk_prompt
 497 {
 498         my $self = shift;
 499         return $self->special_prompt('talkprompt');
 500 }
 501
 502 sub chat_prompt
 503 {
 504         my $self = shift;
 505         return $self->special_prompt('chatprompt');
 506 }
 507
 508 #
 509 # send a load of stuff to a command user with page prompting
 510 # and stuff
 511 #
 512
 513 sub send_ans
 514 {
 515         my $self = shift;
 516
 517         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 518                 my $i;
 519                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 520                         my $line = shift @_;
 521                         $line =~ s/\s+$//o;     # why am having to do this?
 522                         $self->send($line);
 523                 }
 524                 $self->{pagedata} =  [ @_ ];
 525                 $self->state('page');
 526                 $self->send($self->msg('page', scalar @_));
 527         } else {
 528                 for (@_) {
 529                         if (defined $_) {
 530                                 $self->send($_);
 531                         } else {
 532                                 $self->send('');
 533                         }
 534                 }
 535         }
 536 }
 537
 538 #
 539 # this is the thing that preps for running the command, it is done like this for the
 540 # benefit of remote command execution
 541 #
 542
 543 sub run_cmd
 544 {
 545         my $self = shift;
 546         my $user = $self->{user};
 547         my $call = $self->{call};
 548         my $cmdline = shift;
 549         my @ans;
 550
 551         return () if length $cmdline == 0;
 552
 553         # split the command line up into parts, the first part is the command
 554         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 555         $args = "" unless defined $args;
 556
 557         if ($cmd) {
 558
 559                 # strip out // on command only
 560                 $cmd =~ s|//+|/|g;
 561
 562                 # check for length of whole command line and any invalid characters
 563                 if (length $cmdline > $maxcmdlth || $cmd =~ m|\.| || $cmd !~ m|^\w+(?:/\w+){0,1}(?:/\d+)?$|) {
 564                         LogDbg('DXCommand', "cmd: $self->{call} - invalid characters in '$cmd'");
 565                         return $self->_error_out('e40');
 566                 }
 567
 568                 my ($path, $fcmd);
 569
 570                 dbg("cmd: $cmd") if isdbg('command');
 571
 572                 # alias it if possible
 573                 my $acmd = CmdAlias::get_cmd($cmd);
 574                 if ($acmd) {
 575                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 576                         $args = "" unless defined $args;
 577                         dbg("cmd: aliased $cmd $args") if isdbg('command');
 578                 }
 579
 580                 # first expand out the entry to a command
 581                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 582                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") unless $path && $fcmd;
 583
 584                 if ($path && $cmd) {
 585                         dbg("cmd: path $cmd cmd: $fcmd") if isdbg('command');
 586
 587                         my $package = find_cmd_name($path, $fcmd);
 588                         return ($@) if $@;
 589
 590                         if ($package && $self->can("${package}::handle")) {
 591                                 no strict 'refs';
 592                                 dbg("cmd: package $package") if isdbg('command');
 593 #                               Log('cmd', "$self->{call} on $self->{hostname} : '$cmd $args'");
 594                                 my $t0 = [gettimeofday];
 595                                 eval { @ans = &{"${package}::handle"}($self, $args) };
 596                                 if ($@) {
 597                                         DXDebug::dbgprintring(25);
 598                                         return (DXDebug::shortmess($@));
 599                                 }
 600                                 if (isdbg('progress')) {
 601                                         my $msecs = _diffms($t0);
 602                                         my $s = "CMD: '$cmd $args' by $call ip: $self->{hostname} ${msecs}mS";
 603                                         dbg($s) if $cmd !~ /^(?:echo|blank)/ || isdbg('echo');     # cut down a bit on HRD and other clients' noise
 604                                 }
 605                         } else {
 606                                 dbg("cmd: $package not present") if isdbg('command');
 607                                 return $self->_error_out('e1');
 608                         }
 609                 } else {
 610                         LogDbg('DXCommand', "$self->{call} cmd: '$cmd' not found");
 611                         return $self->_error_out('e1');
 612                 }
 613         }
 614
 615         my $ok = shift @ans;
 616         if ($ok) {
 617                 delete $self->{errors};
 618         } else {
 619                 if ($self != $main::me && ++$self->{errors} > $DXChannel::maxerrors) {
 620                         $self->send($self->msg('e26'));
 621                         $self->disconnect;
 622                         return ();
 623                 }
 624         }
 625         return map {s/([^\s])\s+$/$1/; $_} @ans;
 626 }
 627
 628 #
 629 # This is called from inside the main cluster processing loop and is used
 630 # for despatching commands that are doing some long processing job
 631 #
 632 sub process
 633 {
 634         my $t = time;
 635         my @dxchan = DXChannel::get_all();
 636         my $dxchan;
 637
 638         $users = 0;
 639         foreach $dxchan (@dxchan) {
 640                 next unless $dxchan->is_user;
 641
 642                 # send a outstanding message prompt if required
 643                 if ($t >= $dxchan->lastmsgpoll + $msgpolltime) {
 644                         $dxchan->send($dxchan->msg('m9')) if DXMsg::for_me($dxchan->call);
 645                         $dxchan->lastmsgpoll($t);
 646                 }
 647
 648                 # send a prompt if no activity out on this channel
 649                 if ($t >= $dxchan->t + $dxchan->{user_interval}) {
 650                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 651                         $dxchan->t($t);
 652                 }
 653                 ++$users;
 654                 $maxusers = $users if $users > $maxusers;
 655
 656                 if ($dxchan->{isslugged} && $main::systime > $dxchan->{isslugged}) {
 657                         foreach my $ref (@{$dxchan->{sluggedpcs}}) {
 658                                 if ($ref->[0] == 61) {
 659                                         Spot::add(@{$ref->[2]});
 660                                         DXProt::send_dx_spot($dxchan, $ref->[1], @{$ref->[2]});
 661                                 }
 662                         }
 663
 664                         $dxchan->{isslugged} = 0;
 665                         $dxchan->{sluggedpcs} = [];
 666                 }
 667         }
 668
 669         import_cmd();
 670 }
 671
 672 #
 673 # finish up a user context
 674 #
 675 sub disconnect
 676 {
 677         my $self = shift;
 678         my $call = $self->call;
 679
 680         return if $self->{disconnecting}++;
 681
 682         delete $self->{senddbg};
 683         RBN::del_seeme($call);
 684
 685         my $uref = Route::User::get($call);
 686         my @rout;
 687         if ($uref) {
 688 #               @rout = $main::routeroot->del_user($uref);
 689                 @rout = DXProt::_del_thingy($main::routeroot, [$call, 0]);
 690
 691                 # dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 692
 693                 # issue a pc17 to everybody interested
 694                 $main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
 695                 $main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes || ! $DXProt::pc92_ad_enable;
 696         } else {
 697                 confess "trying to disconnect a non existant user $call";
 698         }
 699
 700         # I was the last node visited
 701     $self->user->node($main::mycall);
 702
 703         # send info to all logged in thingies
 704         $self->tell_login('logoutu');
 705         $self->tell_buddies('logoutb');
 706
 707         LogDbg('DXCommand', "$call disconnected");
 708
 709         $self->SUPER::disconnect;
 710 }
 711
 712 #
 713 # short cut to output a prompt
 714 #
 715
 716 sub prompt
 717 {
 718         my $self = shift;
 719
 720         return if $self->{gtk};         # 'cos prompts are not a concept that applies here
 721
 722         my $call = $self->call;
 723         my $date = cldate($main::systime);
 724         my $time = ztime($main::systime);
 725         my $prompt = $self->{prompt} || $self->msg('pr');
 726
 727         $call = "($call)" unless $self->here;
 728         $prompt =~ s/\%C/$call/g;
 729         $prompt =~ s/\%D/$date/g;
 730         $prompt =~ s/\%T/$time/g;
 731         $prompt =~ s/\%M/$main::mycall/g;
 732
 733         $self->send($prompt);
 734 }
 735
 736 # broadcast a message to all users [except those mentioned after buffer]
 737 sub broadcast
 738 {
 739         my $pkg = shift;                        # ignored
 740         my $s = shift;                          # the line to be rebroadcast
 741
 742     foreach my $dxchan (DXChannel::get_all()) {
 743                 next unless $dxchan->is_user; # only interested in user channels
 744                 next if grep $dxchan == $_, @_;
 745                 $dxchan->send($s);                      # send it
 746         }
 747 }
 748
 749 # gimme all the users
 750 sub get_all
 751 {
 752         goto &DXChannel::get_all_users;
 753 }
 754
 755 # run a script for this user
 756 sub run_script
 757 {
 758         my $self = shift;
 759         my $silent = shift || 0;
 760
 761 }
 762
 763 #
 764 # search for the command in the cache of short->long form commands
 765 #
 766
 767 sub search
 768 {
 769         my ($path, $short_cmd, $suffix) = @_;
 770         my ($apath, $acmd);
 771
 772         # commands are lower case
 773         $short_cmd = lc $short_cmd;
 774         dbg("command: $path $short_cmd\n") if isdbg('command');
 775
 776         # do some checking for funny characters
 777         return () if $short_cmd =~ /\/$/;
 778
 779         # return immediately if we have it
 780         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 781         if ($apath && $acmd) {
 782                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 783                 return ($apath, $acmd);
 784         }
 785
 786         # if not guess
 787         my @parts = split '/', $short_cmd;
 788         my $dirfn;
 789         my $curdir = $path;
 790
 791         while (my $p = shift @parts) {
 792                 opendir(D, $curdir) or confess "can't open $curdir $!";
 793                 my @ls = readdir D;
 794                 closedir D;
 795
 796                 # if this isn't the last part
 797                 if (@parts) {
 798                         my $found;
 799                         foreach my $l (sort @ls) {
 800                                 next if $l =~ /^\./;
 801                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 802                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 803                                         $dirfn .= "$l/";
 804                                         $curdir .= "/$l";
 805                                         $found++;
 806                                         last;
 807                                 }
 808                         }
 809                         # only proceed if we find the directory asked for
 810                         return () unless $found;
 811                 } else {
 812                         foreach my $l (sort @ls) {
 813                                 next if $l =~ /^\./;
 814                                 next unless $l =~ /\.$suffix$/;
 815                                 if ($p eq substr($l, 0, length $p)) {
 816                                         $l =~ s/\.$suffix$//;
 817                                         $dirfn = "" unless $dirfn;
 818                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 819                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 820                                         return ($path, "$dirfn$l");
 821                                 }
 822                         }
 823                 }
 824         }
 825
 826         return ();
 827 }
 828
 829 # clear the command name cache
 830 sub clear_cmd_cache
 831 {
 832         no strict 'refs';
 833
 834         for my $k (keys %Cache) {
 835                 unless ($k =~ /cmd_cache/) {
 836                         dbg("Undefining cmd $k") if isdbg('command');
 837                         undef $DXCommandmode::{"${k}::"};
 838                 }
 839         }
 840         %cmd_cache = ();
 841         %Cache = ( cmd_clear_cmd_cache  => $Cache{cmd_clear_cmd_cache} );
 842 }
 843
 844 #
 845 # the persistant execution of things from the command directories
 846 #
 847 #
 848 # This allows perl programs to call functions dynamically
 849 #
 850 # This has been nicked directly from the perlembed pages
 851 #
 852 #require Devel::Symdump;
 853
 854 sub valid_package_name {
 855         my $string = shift;
 856         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 857
 858         $string =~ s|/|_|g;
 859         return "cmd_$string";
 860 }
 861
 862 #
 863 # this bit of magic finds a command in the offered directory
 864 sub find_cmd_name {
 865         my $path = shift;
 866         my $cmdname = shift;
 867         my $package = valid_package_name($cmdname);
 868         my $filename = "$path/$cmdname.pl";
 869         my $mtime = -M $filename;
 870
 871         # return if we can't find it
 872         $errstr = undef;
 873         unless (defined $mtime) {
 874                 $errstr = DXM::msg('e1');
 875                 return undef;
 876         }
 877
 878         if(exists $Cache{$package} && exists $Cache{$package}->{mtime} && $Cache{$package}->{mtime} <= $mtime) {
 879                 #we have compiled this subroutine already,
 880                 #it has not been updated on disk, nothing left to do
 881                 #print STDERR "already compiled $package->handler\n";
 882                 dbg("find_cmd_name: $package cached") if isdbg('command');
 883         } else {
 884
 885                 my $sub = readfilestr($filename);
 886                 unless ($sub) {
 887                         $errstr = "Syserr: can't open '$filename' $!";
 888                         return undef;
 889                 };
 890
 891                 #wrap the code into a subroutine inside our unique package
 892                 my $eval = qq(package DXCommandmode::$package; use 5.10.1; use POSIX qw{:math_h}; use DXLog; use DXDebug; use DXUser; use DXUtil; our \@ISA = qw{DXCommandmode}; );
 893
 894
 895                 if ($sub =~ m|\s*sub\s+handle\n|) {
 896                         $eval .= $sub;
 897                 } else {
 898                         $eval .= qq(sub handle { $sub });
 899                 }
 900
 901                 if (isdbg('eval')) {
 902                         my @list = split /\n/, $eval;
 903                         for (@list) {
 904                                 dbg($_ . "\n") if isdbg('eval');
 905                         }
 906                 }
 907
 908                 # get rid of any existing sub and try to compile the new one
 909                 no strict 'refs';
 910
 911                 if (exists $Cache{$package}) {
 912                         dbg("find_cmd_name: Redefining $package") if isdbg('command');
 913                         undef $DXCommandmode::{"${package}::"};
 914                         delete $Cache{$package};
 915                 } else {
 916                         dbg("find_cmd_name: Defining $package") if isdbg('command');
 917                 }
 918
 919                 eval $eval;
 920
 921                 $Cache{$package} = {mtime => $mtime } unless $@;
 922         }
 923
 924         return "DXCommandmode::$package";
 925 }
 926
 927 sub send
 928 {
 929         my $self = shift;
 930         if ($self->{gtk}) {
 931                 for (@_) {
 932                         $self->SUPER::send(dd(['cmd',$_]));
 933                 }
 934         } else {
 935                 $self->SUPER::send(@_);
 936         }
 937 }
 938
 939 sub local_send
 940 {
 941         my ($self, $let, $buf) = @_;
 942         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk' || $self->{state} eq 'chat') {
 943                 if ($self->{enhanced}) {
 944                         $self->send_later($let, $buf);
 945                 } else {
 946                         $self->send($buf);
 947                 }
 948         } else {
 949                 $self->delay($buf);
 950         }
 951 }
 952
 953 # send a talk message here
 954 sub talk
 955 {
 956         my ($self, $from, $to, $via, $line, $onode) = @_;
 957         $line =~ s/\\5E/\^/g;
 958         if ($self->{talk}) {
 959                 if ($self->{gtk}) {
 960                         $self->local_send('T', dd(['talk',$to,$from,$via,$line]));
 961                 } else {
 962                         $self->local_send('T', "$to de $from: $line");
 963                 }
 964         }
 965         Log('talk', $to, $from, '<' . ($onode || '*'), $line);
 966         # send a 'not here' message if required
 967         unless ($self->{here} && $from ne $to) {
 968                 my $key = "$to$from";
 969                 unless (exists $nothereslug{$key}) {
 970                         my ($ref, $dxchan);
 971                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 972                                 my $name = $self->user->name || $to;
 973                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 974                                 $nothereslug{$key} = $main::systime;
 975                                 $dxchan->talk($to, $from, undef, $s);
 976                         }
 977                 }
 978         }
 979 }
 980
 981 # send an announce
 982 sub announce
 983 {
 984         my $self = shift;
 985         my $line = shift;
 986         my $isolate = shift;
 987         my $to = shift;
 988         my $target = shift;
 989         my $text = shift;
 990         my ($filter, $hops);
 991
 992         if (!$self->{ann_talk} && $to ne $self->{call}) {
 993                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 994                 return if $call;
 995         }
 996
 997         if ($self->{annfilter}) {
 998                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 999                 return unless $filter;
1000         }
1001
1002         unless ($self->{ann}) {
1003                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
1004         }
1005         return if $target eq 'SYSOP' && $self->{priv} < 5;
1006         my $buf;
1007         if ($self->{gtk}) {
1008                 $buf = dd(['ann', $to, $target, $text, @_])
1009         } else {
1010                 $buf = "$to$target de $_[0]: $text";
1011                 #$buf =~ s/\%5E/^/g;
1012                 $buf .= "\a\a" if $self->{beep};
1013         }
1014         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
1015 }
1016
1017 # send a chat
1018 sub chat
1019 {
1020         my $self = shift;
1021         my $line = shift;
1022         my $isolate = shift;
1023         my $target = shift;
1024         my $to = shift;
1025         my $text = shift;
1026         my ($filter, $hops);
1027
1028         return unless grep uc $_ eq $target, @{$self->{user}->{group}};
1029
1030         $text =~ s/^\#\d+ //;
1031         my $buf;
1032         if ($self->{gtk}) {
1033                 $buf = dd(['chat', $to, $target, $text, @_])
1034         } else {
1035                 $buf = "$target de $_[0]: $text";
1036                 #$buf =~ s/\%5E/^/g;
1037                 $buf .= "\a\a" if $self->{beep};
1038         }
1039         $self->local_send('C', $buf);
1040 }
1041
1042 sub format_dx_spot
1043 {
1044         my $self = shift;
1045
1046         my $t = ztime($_[2]);
1047         my ($slot1, $slot2) = ('', '');
1048
1049         my $clth = 30 + $self->{width} - 80;    # allow comment to grow according the screen width
1050         my $c = $_[3];
1051         $c =~ s/\t/ /g;
1052         my $comment = substr (($c || ''), 0, $clth);
1053         $comment .= ' ' x ($clth - (length($comment)));
1054
1055         if ($self->{user}) {            # to allow the standalone program 'showdx' to work
1056                 if (!$slot1 && $self->{user}->wantgrid) {
1057                         my $ref = DXUser::get_current($_[1]);
1058                         if ($ref && $ref->qra) {
1059                                 $slot1 = ' ' . substr($ref->qra, 0, 4);
1060                         }
1061                 }
1062                 if (!$slot1 && $self->{user}->wantusstate) {
1063                         $slot1 = " $_[12]" if $_[12];
1064                 }
1065                 unless ($slot1) {
1066                         if ($self->{user}->wantdxitu) {
1067                                 $slot1 = sprintf(" %2d", $_[8]) if defined $_[8];
1068                         }
1069                         elsif ($self->{user}->wantdxcq) {
1070                                 $slot1 = sprintf(" %2d", $_[9]) if defined $_[9];
1071                         }
1072                 }
1073                 $comment = substr($comment, 0,  $clth-length($slot1)) . $slot1 if $slot1;
1074
1075                 if (!$slot2 && $self->{user}->wantgrid) {
1076                         my $origin = $_[4];
1077                         $origin =~ s/-#$//;     # sigh......
1078                         my $ref = DXUser::get_current($origin);
1079                         if ($ref && $ref->qra) {
1080                                 $slot2 = ' ' . substr($ref->qra, 0, 4);
1081                         }
1082                 }
1083                 if (!$slot2 && $self->{user}->wantusstate) {
1084                         $slot2 = " $_[13]" if $_[13];
1085                 }
1086                 unless ($slot2) {
1087                         if ($self->{user}->wantdxitu) {
1088                                 $slot2 = sprintf(" %2d", $_[10]) if defined $_[10];
1089                         }
1090                         elsif ($self->{user}->wantdxcq) {
1091                                 $slot2 = sprintf(" %2d", $_[11]) if defined $_[11];
1092                         }
1093                 }
1094         }
1095
1096         my $o = sprintf("%-9s", $_[4] . ':');
1097         my $qrg = sprintf "%8.1f", $_[0];
1098         if (length $qrg >= 9) {
1099                 while (length($o)+length($qrg) > 17 && $o =~ / $/) {
1100                         chop $o;
1101                 }
1102         }
1103         my $spot = sprintf "%-12s", $_[1];
1104         my $front = "DX de $o $qrg  $spot";
1105         while (length($front) > 38 && $front =~ /  $/) {
1106                 chop $front;
1107         }
1108
1109
1110         return sprintf "$front %-s $t$slot2", $comment;
1111 }
1112
1113
1114 # send a dx spot
1115 sub dx_spot
1116 {
1117         my $self = shift;
1118         my $line = shift;
1119         my $isolate = shift;
1120         return unless $self->{dx};
1121
1122         my ($filter, $hops);
1123
1124         if ($self->{spotsfilter}) {
1125                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
1126                 return unless $filter;
1127         }
1128
1129         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
1130
1131         my $buf;
1132         if ($self->{ve7cc}) {
1133                 $buf = VE7CC::dx_spot($self, @_);
1134         } elsif ($self->{gtk}) {
1135                 my ($dxloc, $byloc);
1136
1137                 my $ref = DXUser::get_current($_[4]);
1138                 if ($ref) {
1139                         $byloc = $ref->qra;
1140                         $byloc = substr($byloc, 0, 4) if $byloc;
1141                 }
1142
1143                 my $spot = $_[1];
1144                 $spot =~ s|/\w{1,4}$||;
1145                 $ref = DXUser::get_current($spot);
1146                 if ($ref) {
1147                         $dxloc = $ref->qra;
1148                         $dxloc = substr($dxloc, 0, 4) if $dxloc;
1149                 }
1150                 $buf = dd(['dx', @_, ($dxloc||''), ($byloc||'')]);
1151
1152         } else {
1153                 $buf = $self->format_dx_spot(@_);
1154                 $buf .= "\a\a" if $self->{beep};
1155                 #$buf =~ s/\%5E/^/g;
1156         }
1157
1158         $self->local_send('X', $buf);
1159 }
1160
1161 sub wwv
1162 {
1163         my $self = shift;
1164         my $line = shift;
1165         my $isolate = shift;
1166         my ($filter, $hops);
1167
1168         return unless $self->{wwv};
1169
1170         if ($self->{wwvfilter}) {
1171                 ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_] );
1172                 return unless $filter;
1173         }
1174
1175         my $buf;
1176         if ($self->{gtk}) {
1177                 $buf = dd(['wwv', @_])
1178         } else {
1179                 $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1180                 $buf .= "\a\a" if $self->{beep};
1181         }
1182
1183         $self->local_send('V', $buf);
1184 }
1185
1186 sub wcy
1187 {
1188         my $self = shift;
1189         my $line = shift;
1190         my $isolate = shift;
1191         my ($filter, $hops);
1192
1193         return unless $self->{wcy};
1194
1195         if ($self->{wcyfilter}) {
1196                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
1197                 return unless $filter;
1198         }
1199
1200         my $buf;
1201         if ($self->{gtk}) {
1202                 $buf = dd(['wcy', @_])
1203         } else {
1204                 $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1205                 $buf .= "\a\a" if $self->{beep};
1206         }
1207         $self->local_send('Y', $buf);
1208 }
1209
1210 # broadcast debug stuff to all interested parties
1211 sub broadcast_debug
1212 {
1213         my $s = shift;                          # the line to be rebroadcast
1214
1215         foreach my $dxchan (DXChannel::get_all_users) {
1216                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
1217                 if ($dxchan->{gtk}) {
1218                         $dxchan->send_later('L', dd(['db', $s]));
1219                 } else {
1220                         $dxchan->send_later('L', $s);
1221                 }
1222         }
1223 }
1224
1225 sub do_entry_stuff
1226 {
1227         my $self = shift;
1228         my $line = shift;
1229         my @out;
1230
1231         if ($self->state eq 'enterbody') {
1232                 my $loc = $self->{loc} || confess "local var gone missing" ;
1233                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
1234                         no strict 'refs';
1235                         push @out, &{$loc->{endaction}}($self);          # like this for < 5.8.0
1236                         $self->func(undef);
1237                         $self->state('prompt');
1238                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
1239                         push @out, $self->msg('m10');
1240                         delete $loc->{lines};
1241                         delete $self->{loc};
1242                         $self->func(undef);
1243                         $self->state('prompt');
1244                 } else {
1245                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1246                         # i.e. it ain't and end or abort, therefore store the line
1247                 }
1248         } else {
1249                 confess "Invalid state $self->{state}";
1250         }
1251         return @out;
1252 }
1253
1254 sub store_startup_script
1255 {
1256         my $self = shift;
1257         my $loc = $self->{loc} || confess "local var gone missing" ;
1258         my @out;
1259         my $call = $loc->{call} || confess "callsign gone missing";
1260         confess "lines array gone missing" unless ref $loc->{lines};
1261         my $r = Script::store($call, $loc->{lines});
1262         if (defined $r) {
1263                 if ($r) {
1264                         push @out, $self->msg('m19', $call, $r);
1265                 } else {
1266                         push @out, $self->msg('m20', $call);
1267                 }
1268         } else {
1269                 push @out, "error opening startup script $call $!";
1270         }
1271         return @out;
1272 }
1273
1274 # Import any commands contained in any files in import_cmd directory
1275 #
1276 # If the filename has a recogisable callsign as some delimited part
1277 # of it, then this is the user the command will be run as.
1278 #
1279 sub import_cmd
1280 {
1281         # are there any to do in this directory?
1282         return unless -d $cmdimportdir;
1283         unless (opendir(DIR, $cmdimportdir)) {
1284                 LogDbg('err', "can\'t open $cmdimportdir $!");
1285                 return;
1286         }
1287
1288         my @names = readdir(DIR);
1289         closedir(DIR);
1290         my $name;
1291
1292         return unless @names;
1293
1294         foreach $name (@names) {
1295                 next if $name =~ /^\./;
1296
1297                 my $s = Script->new($name, $cmdimportdir);
1298                 if ($s) {
1299                         LogDbg('DXCommand', "Run import cmd file $name");
1300                         my @cat = split /[^A-Za-z0-9]+/, $name;
1301                         my ($call) = grep {is_callsign(uc $_)} @cat;
1302                         $call ||= $main::mycall;
1303                         $call = uc $call;
1304                         my @out;
1305
1306
1307                         $s->inscript(0);        # switch off script checks
1308
1309                         if ($call eq $main::mycall) {
1310                                 @out = $s->run($main::me, 1);
1311                         } else {
1312                                 my $dxchan = DXChannel::get($call);
1313                             if ($dxchan) {
1314                                         @out = $s->run($dxchan, 1);
1315                                 } else {
1316                                         my $u = DXUser::get($call);
1317                                         if ($u) {
1318                                                 $dxchan = $main::me;
1319                                                 my $old = $dxchan->{call};
1320                                                 my $priv = $dxchan->{priv};
1321                                                 my $user = $dxchan->{user};
1322                                                 $dxchan->{call} = $call;
1323                                                 $dxchan->{priv} = $u->priv;
1324                                                 $dxchan->{user} = $u;
1325                                                 @out = $s->run($dxchan, 1);
1326                                                 $dxchan->{call} = $old;
1327                                                 $dxchan->{priv} = $priv;
1328                                                 $dxchan->{user} = $user;
1329                                         } else {
1330                                                 LogDbg('err', "Trying to run import cmd for non-existant user $call");
1331                                         }
1332                                 }
1333                         }
1334                         $s->erase;
1335                         for (@out) {
1336                                 LogDbg('DXCommand', "Import cmd $name/$call: $_");
1337                         }
1338                 } else {
1339                         LogDbg('err', "Failed to open $cmdimportdir/$name $!");
1340                         unlink "$cmdimportdir/$name";
1341                 }
1342         }
1343 }
1344
1345 sub print_find_reply
1346 {
1347         my ($self, $node, $target, $flag, $ms) = @_;
1348         my $sort = $flag == 2 ? "External" : "Local";
1349         $self->send("$sort $target found at $node in $ms ms" );
1350 }
1351
1352 # send the most relevant motd
1353 sub send_motd
1354 {
1355         my $self = shift;
1356         my $motd;
1357
1358         unless ($self->isregistered) {
1359                 $motd = "${main::motd}_nor_$self->{lang}";
1360                 $motd = "${main::motd}_nor" unless -e $motd;
1361         }
1362         $motd = "${main::motd}_$self->{lang}" unless $motd && -e $motd;
1363         $motd = $main::motd unless $motd && -e $motd;
1364         if ($self->conn->ax25) {
1365                 if ($motd) {
1366                         $motd = "${motd}_ax25" if -e "${motd}_ax25";
1367                 } else {
1368                         $motd = "${main::motd}_ax25" if -e "${main::motd}_ax25";
1369                 }
1370         }
1371         $self->send_file($motd) if -e $motd;
1372 }
1373
1374 # Punt off a long running command into a separate process
1375 #
1376 # This is called from commands to run some potentially long running
1377 # function. The process forks and then runs the function and returns
1378 # the result back to the cmd.
1379 #
1380 # NOTE: this merely forks the current process and then runs the cmd in that (current) context.
1381 #       IT DOES NOT START UP SOME NEW PROGRAM AND RELIES ON THE FACT THAT IT IS RUNNING DXSPIDER
1382 #       THE CURRENT CONTEXT!!
1383 #
1384 # call: $self->spawn_cmd($original_cmd_line, \<function>, [cb => sub{...}], [prefix => "cmd> "], [progress => 0|1], [args => [...]]);
1385 sub spawn_cmd
1386 {
1387         my $self = shift;
1388         my $line = shift;
1389         my $cmdref = shift;
1390         my $call = $self->{call};
1391         my %args = @_;
1392         my @out;
1393
1394         my $cb = delete $args{cb};
1395         my $prefix = delete $args{prefix};
1396         my $progress = delete $args{progress};
1397         my $args = delete $args{args} || [];
1398         my $t0 = [gettimeofday];
1399
1400         no strict 'refs';
1401
1402         # just behave normally if something has set the "one-shot" _nospawn in the channel
1403         if ($self->{_nospawn} || $main::is_win == 1) {
1404                 eval { @out = $cmdref->(@$args); };
1405                 if ($@) {
1406                         DXDebug::dbgprintring(25);
1407                         push @out, DXDebug::shortmess($@);
1408                 }
1409                 return @out;
1410         }
1411
1412         my $fc = DXSubprocess->new;
1413 #       $fc->serializer(\&encode_json);
1414 #       $fc->deserializer(\&decode_json);
1415         $fc->run(
1416                          sub {
1417                                  my $subpro = shift;
1418                                  if (isdbg('progress')) {
1419                                          my $s = qq{$call line: "$line"};
1420                                          $s .= ", args: " . join(', ', map { defined $_ ? qq{'$_'} : q{'undef'} } @$args) if $args && @$args;
1421                                          dbg($s);
1422                                  }
1423                                  eval {
1424                                          ++$self->{_in_sub_process};
1425                                          dbg "\$self->{_in_sub_process} = $self->{_in_sub_process}";
1426                                          @out = $cmdref->(@$args);
1427                                          --$self->{_in_sub_process} if $self->{_in_sub_process} > 0;
1428                                  };
1429                                  if ($@) {
1430                                          DXDebug::dbgprintring(25);
1431                                          push @out, DXDebug::shortmess($@);
1432                                  }
1433                                  return @out;
1434                          },
1435 #                        $args,
1436                          sub {
1437                                  my ($fc, $err, @res) = @_;
1438                                  my $dxchan = DXChannel::get($call);
1439                                  return unless $dxchan;
1440
1441                                  if ($err) {
1442                                          my $s = "DXProt::spawn_cmd: call $call error $err";
1443                                          dbg($s) if isdbg('chan');
1444                                          $dxchan->send($s);
1445                                          return;
1446                                  }
1447                                  if ($cb) {
1448                                          # transform output if required
1449                                          @res = $cb->($dxchan, @res);
1450                                  }
1451                                  if (@res) {
1452                                          if (defined $prefix) {
1453                                                  $dxchan->send(map {"$prefix$_"} @res);
1454                                          } else {
1455                                                  $dxchan->send(@res);
1456                                          }
1457                                  }
1458                                  diffms("by $call", $line, $t0, scalar @res) if isdbg('progress');
1459                          });
1460
1461         return @out;
1462 }
1463
1464 sub user_count
1465 {
1466     return ($users, $maxusers);
1467 }
1468
1469 # alias localhost if required. This is designed to repress all localhost and other
1470 # internal interfaces to a fixed (outside) IPv4 or IPV6 address
1471 sub alias_localhost
1472 {
1473         my $hostname = shift;
1474         if ($hostname =~ /./) {
1475                 return $hostname unless $main::localhost_alias_ipv4;
1476                 return (grep $hostname eq $_, @main::localhost_names) ? $main::localhost_alias_ipv4 : $hostname;
1477         } elsif ($hostname =~ /:/) {
1478                 return $hostname unless $main::localhost_alias_ipv6;
1479                 return (grep $hostname eq $_, @main::localhost_names) ? $main::localhost_alias_ipv6 : $hostname;
1480         }
1481         return $hostname;
1482 }
1483
1484 1;
1485 __END__