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 AnyEvent;
  17 use AnyEvent::Handle;
  18 use AnyEvent::Socket;
  19
  20 use POSIX qw(:math_h);
  21 use DXUtil;
  22 use DXChannel;
  23 use DXUser;
  24 use DXVars;
  25 use DXDebug;
  26 use DXM;
  27 use DXLog;
  28 use DXLogPrint;
  29 use DXBearing;
  30 use CmdAlias;
  31 use Filter;
  32 use Minimuf;
  33 use DXDb;
  34 use AnnTalk;
  35 use WCY;
  36 use Sun;
  37 use Internet;
  38 use Script;
  39 use QSL;
  40 use DB_File;
  41 use VE7CC;
  42 use DXXml;
  43
  44 use strict;
  45 use vars qw(%Cache %cmd_cache $errstr %aliases $scriptbase %nothereslug
  46         $maxbadcount $msgpolltime $default_pagelth $cmdimportdir);
  47
  48 %Cache = ();                                    # cache of dynamically loaded routine's mod times
  49 %cmd_cache = ();                                # cache of short names
  50 $errstr = ();                                   # error string from eval
  51 %aliases = ();                                  # aliases for (parts of) commands
  52 $scriptbase = "$main::root/scripts"; # the place where all users start scripts go
  53 $maxbadcount = 3;                               # no of bad words allowed before disconnection
  54 $msgpolltime = 3600;                    # the time between polls for new messages
  55 $cmdimportdir = "$main::root/cmd_import"; # the base directory for importing command scripts
  56                                           # this does not exist as default, you need to create it manually
  57 #
  58
  59 #
  60 # obtain a new connection this is derived from dxchannel
  61 #
  62
  63 sub new
  64 {
  65         my $self = DXChannel::alloc(@_);
  66
  67         # routing, this must go out here to prevent race condx
  68         my $pkg = shift;
  69         my $call = shift;
  70 #       my @rout = $main::routeroot->add_user($call, Route::here(1));
  71         DXProt::_add_thingy($main::routeroot, [$call, 0, 0, 1, undef, undef, $self->{conn}->peerhost], );
  72
  73         # ALWAYS output the user
  74         my $ref = Route::User::get($call);
  75         if ($ref) {
  76                 $main::me->route_pc16($main::mycall, undef, $main::routeroot, $ref);
  77                 $main::me->route_pc92a($main::mycall, undef, $main::routeroot, $ref) unless $DXProt::pc92_slug_changes;
  78         }
  79
  80         return $self;
  81 }
  82
  83 # this is how a a connection starts, you get a hello message and the motd with
  84 # possibly some other messages asking you to set various things up if you are
  85 # new (or nearly new and slacking) user.
  86
  87 sub start
  88 {
  89         my ($self, $line, $sort) = @_;
  90         my $user = $self->{user};
  91         my $call = $self->{call};
  92         my $name = $user->{name};
  93
  94         # log it
  95         my $host = $self->{conn}->peerhost;
  96         $host ||= "AGW Port #$self->{conn}->{agwport}" if exists $self->{conn}->{agwport};
  97         $host ||= "unknown";
  98         LogDbg('DXCommand', "$call connected from $host");
  99
 100         $self->{name} = $name ? $name : $call;
 101         $self->send($self->msg('l2',$self->{name}));
 102         $self->state('prompt');         # a bit of room for further expansion, passwords etc
 103         $self->{priv} = $user->priv || 0;
 104         $self->{lang} = $user->lang || $main::lang || 'en';
 105         my $pagelth = $user->pagelth;
 106         $pagelth = $default_pagelth unless defined $pagelth;
 107         $self->{pagelth} = $pagelth;
 108         ($self->{width}) = $line =~ /width=(\d+)/; $line =~ s/\s*width=\d+\s*//;
 109         $self->{width} = 80 unless $self->{width} && $self->{width} > 80;
 110         $self->{consort} = $line;       # save the connection type
 111
 112         # set some necessary flags on the user if they are connecting
 113         $self->{beep} = $user->wantbeep;
 114         $self->{ann} = $user->wantann;
 115         $self->{wwv} = $user->wantwwv;
 116         $self->{wcy} = $user->wantwcy;
 117         $self->{talk} = $user->wanttalk;
 118         $self->{wx} = $user->wantwx;
 119         $self->{dx} = $user->wantdx;
 120         $self->{logininfo} = $user->wantlogininfo;
 121         $self->{ann_talk} = $user->wantann_talk;
 122         $self->{here} = 1;
 123         $self->{prompt} = $user->prompt if $user->prompt;
 124
 125         # sort out new dx spot stuff
 126         $user->wantdxcq(0) unless defined $user->{wantdxcq};
 127         $user->wantdxitu(0) unless defined $user->{wantdxitu};
 128         $user->wantusstate(0) unless defined $user->{wantusstate};
 129
 130         # sort out registration
 131         if ($main::reqreg == 1) {
 132                 $self->{registered} = $user->registered;
 133         } elsif ($main::reqreg == 2) {
 134                 $self->{registered} = !$user->registered;
 135         } else {
 136                 $self->{registered} = 1;
 137         }
 138
 139         # send the relevant MOTD
 140         $self->send_motd;
 141
 142         # sort out privilege reduction
 143         $self->{priv} = 0 if $line =~ /^(ax|te)/ && !$self->conn->{usedpasswd};
 144
 145         # get the filters
 146         my $nossid = $call;
 147         $nossid =~ s/-\d+$//;
 148
 149         $self->{spotsfilter} = Filter::read_in('spots', $call, 0)
 150                 || Filter::read_in('spots', $nossid, 0)
 151                         || Filter::read_in('spots', 'user_default', 0);
 152         $self->{wwvfilter} = Filter::read_in('wwv', $call, 0)
 153                 || Filter::read_in('wwv', $nossid, 0)
 154                         || Filter::read_in('wwv', 'user_default', 0);
 155         $self->{wcyfilter} = Filter::read_in('wcy', $call, 0)
 156                 || Filter::read_in('wcy', $nossid, 0)
 157                         || Filter::read_in('wcy', 'user_default', 0);
 158         $self->{annfilter} = Filter::read_in('ann', $call, 0)
 159                 || Filter::read_in('ann', $nossid, 0)
 160                         || Filter::read_in('ann', 'user_default', 0) ;
 161
 162         # clean up qra locators
 163         my $qra = $user->qra;
 164         $qra = undef if ($qra && !DXBearing::is_qra($qra));
 165         unless ($qra) {
 166                 my $lat = $user->lat;
 167                 my $long = $user->long;
 168                 $user->qra(DXBearing::lltoqra($lat, $long)) if (defined $lat && defined $long);
 169         }
 170
 171         # decide on echo
 172         my $echo = $user->wantecho;
 173         unless ($echo) {
 174                 $self->send_now('E', "0");
 175                 $self->send($self->msg('echow'));
 176                 $self->conn->echo($echo) if $self->conn->can('echo');
 177         }
 178
 179         $self->tell_login('loginu');
 180         $self->tell_buddies('loginb');
 181
 182         # do we need to send a forward/opernam?
 183         my $lastoper = $user->lastoper || 0;
 184         my $homenode = $user->homenode || "";
 185         if ($homenode eq $main::mycall && $main::systime >= $lastoper + $DXUser::lastoperinterval) {
 186                 run_cmd($main::me, "forward/opernam $call");
 187                 $user->lastoper($main::systime + ((int rand(10)) * 86400));
 188         }
 189
 190         # run a script send the output to the punter
 191         my $script = new Script(lc $call) || new Script('user_default');
 192         $script->run($self) if $script;
 193
 194         # send cluster info
 195         my $info = Route::cluster();
 196         $self->send("Cluster:$info");
 197
 198         # send prompts for qth, name and things
 199         $self->send($self->msg('namee1')) if !$user->name;
 200         $self->send($self->msg('qthe1')) if !$user->qth;
 201         $self->send($self->msg('qll')) if !$user->qra || (!$user->lat && !$user->long);
 202         $self->send($self->msg('hnodee1')) if !$user->qth;
 203         $self->send($self->msg('m9')) if DXMsg::for_me($call);
 204
 205         # send out any buddy messages for other people that are online
 206         foreach my $call (@{$user->buddies}) {
 207                 my $ref = Route::User::get($call);
 208                 if ($ref) {
 209                         foreach my $node ($ref->parents) {
 210                                 $self->send($self->msg($node eq $main::mycall ? 'loginb' : 'loginbn', $call, $node));
 211                         }
 212                 }
 213         }
 214
 215         $self->lastmsgpoll($main::systime);
 216         $self->prompt;
 217 }
 218
 219 #
 220 # This is the normal command prompt driver
 221 #
 222
 223 sub normal
 224 {
 225         my $self = shift;
 226         my $cmdline = shift;
 227         my @ans;
 228
 229         # save this for them's that need it
 230         my $rawline = $cmdline;
 231
 232         # remove leading and trailing spaces
 233         $cmdline =~ s/^\s*(.*)\s*$/$1/;
 234
 235         if ($self->{state} eq 'page') {
 236                 my $i = $self->{pagelth};
 237                 my $ref = $self->{pagedata};
 238                 my $tot = @$ref;
 239
 240                 # abort if we get a line starting in with a
 241                 if ($cmdline =~ /^a/io) {
 242                         undef $ref;
 243                         $i = 0;
 244                 }
 245
 246                 # send a tranche of data
 247                 while ($i-- > 0 && @$ref) {
 248                         my $line = shift @$ref;
 249                         $line =~ s/\s+$//o;     # why am having to do this?
 250                         $self->send($line);
 251                 }
 252
 253                 # reset state if none or else chuck out an intermediate prompt
 254                 if ($ref && @$ref) {
 255                         $tot -= $self->{pagelth};
 256                         $self->send($self->msg('page', $tot));
 257                 } else {
 258                         $self->state('prompt');
 259                 }
 260         } elsif ($self->{state} eq 'sysop') {
 261                 my $passwd = $self->{user}->passwd;
 262                 if ($passwd) {
 263                         my @pw = grep {$_ !~ /\s/} split //, $passwd;
 264                         my @l = @{$self->{passwd}};
 265                         my $str = "$pw[$l[0]].*$pw[$l[1]].*$pw[$l[2]].*$pw[$l[3]].*$pw[$l[4]]";
 266                         if ($cmdline =~ /$str/) {
 267                                 $self->{priv} = $self->{user}->priv;
 268                         } else {
 269                                 $self->send($self->msg('sorry'));
 270                         }
 271                 } else {
 272                         $self->send($self->msg('sorry'));
 273                 }
 274                 $self->state('prompt');
 275         } elsif ($self->{state} eq 'passwd') {
 276                 my $passwd = $self->{user}->passwd;
 277                 if ($passwd && $cmdline eq $passwd) {
 278                         $self->send($self->msg('pw1'));
 279                         $self->state('passwd1');
 280                 } else {
 281                         $self->conn->{echo} = $self->conn->{decho};
 282                         delete $self->conn->{decho};
 283                         $self->send($self->msg('sorry'));
 284                         $self->state('prompt');
 285                 }
 286         } elsif ($self->{state} eq 'passwd1') {
 287                 $self->{passwd} = $cmdline;
 288                 $self->send($self->msg('pw2'));
 289                 $self->state('passwd2');
 290         } elsif ($self->{state} eq 'passwd2') {
 291                 if ($cmdline eq $self->{passwd}) {
 292                         $self->{user}->passwd($cmdline);
 293                         $self->send($self->msg('pw3'));
 294                 } else {
 295                         $self->send($self->msg('pw4'));
 296                 }
 297                 $self->conn->{echo} = $self->conn->{decho};
 298                 delete $self->conn->{decho};
 299                 $self->state('prompt');
 300         } elsif ($self->{state} eq 'talk' || $self->{state} eq 'chat') {
 301                 if ($cmdline =~ m{^(?:/EX|/ABORT)}i) {
 302                         for (@{$self->{talklist}}) {
 303                                 if ($self->{state} eq 'talk') {
 304                                         $self->send_talks($_,  $self->msg('talkend'));
 305                                 } else {
 306                                         $self->local_send('C', $self->msg('chatend', $_));
 307                                 }
 308                         }
 309                         $self->state('prompt');
 310                         delete $self->{talklist};
 311                 } elsif ($cmdline =~ m|^/+\w+|) {
 312                         $cmdline =~ s|^/||;
 313                         my $sendit = $cmdline =~ s|^/+||;
 314                         my @in = $self->run_cmd($cmdline);
 315                         $self->send_ans(@in);
 316                         if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
 317                                 foreach my $l (@in) {
 318                                         my @bad;
 319                                         if (@bad = BadWords::check($l)) {
 320                                                 $self->badcount(($self->badcount||0) + @bad);
 321                                                 LogDbg('DXCommand', "$self->{call} swore: $l with words:" . join(',', @bad) . ")");
 322                                         } else {
 323                                                 for (@{$self->{talklist}}) {
 324                                                         if ($self->{state} eq 'talk') {
 325                                                                 $self->send_talks($_, $l);
 326                                                         } else {
 327                                                                 send_chats($self, $_, $l)
 328                                                         }
 329                                                 }
 330                                         }
 331                                 }
 332                         }
 333                         $self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 334                 } elsif ($self->{talklist} && @{$self->{talklist}}) {
 335                         # send what has been said to whoever is in this person's talk list
 336                         my @bad;
 337                         if (@bad = BadWords::check($cmdline)) {
 338                                 $self->badcount(($self->badcount||0) + @bad);
 339                                 LogDbg('DXCommand', "$self->{call} swore: $cmdline with words:" . join(',', @bad) . ")");
 340                         } else {
 341                                 for (@{$self->{talklist}}) {
 342                                         if ($self->{state} eq 'talk') {
 343                                                 $self->send_talks($_, $rawline);
 344                                         } else {
 345                                                 send_chats($self, $_, $rawline);
 346                                         }
 347                                 }
 348                         }
 349                         $self->send($self->talk_prompt) if $self->{state} eq 'talk';
 350                         $self->send($self->chat_prompt) if $self->{state} eq 'chat';
 351                 } else {
 352                         # for safety
 353                         $self->state('prompt');
 354                 }
 355         } elsif (my $func = $self->{func}) {
 356                 no strict 'refs';
 357                 my @ans;
 358                 if (ref $self->{edit}) {
 359                         eval { @ans = $self->{edit}->$func($self, $rawline)};
 360                 } else {
 361                         eval {  @ans = &{$self->{func}}($self, $rawline) };
 362                 }
 363                 if ($@) {
 364                         $self->send_ans("Syserr: on stored func $self->{func}", $@);
 365                         delete $self->{func};
 366                         $self->state('prompt');
 367                         undef $@;
 368                 }
 369                 $self->send_ans(@ans);
 370         } else {
 371                 $self->send_ans(run_cmd($self, $cmdline));
 372         }
 373
 374         # check for excessive swearing
 375         if ($self->{badcount} && $self->{badcount} >= $maxbadcount) {
 376                 LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 377                 $self->disconnect;
 378                 return;
 379         }
 380
 381         # send a prompt only if we are in a prompt state
 382         $self->prompt() if $self->{state} =~ /^prompt/o;
 383 }
 384
 385 # send out the talk messages taking into account vias and connectivity
 386 sub send_talks
 387 {
 388         my ($self, $ent, $line) = @_;
 389
 390         my ($to, $via) = $ent =~ /(\S+)>(\S+)/;
 391         $to = $ent unless $to;
 392         my $call = $via && $via ne '*' ? $via : $to;
 393         my $clref = Route::get($call);
 394         my $dxchan = $clref->dxchan if $clref;
 395         if ($dxchan) {
 396                 $dxchan->talk($self->{call}, $to, undef, $line);
 397         } else {
 398                 $self->send($self->msg('disc2', $via ? $via : $to));
 399                 my @l = grep { $_ ne $ent } @{$self->{talklist}};
 400                 if (@l) {
 401                         $self->{talklist} = \@l;
 402                 } else {
 403                         delete $self->{talklist};
 404                         $self->state('prompt');
 405                 }
 406         }
 407 }
 408
 409 sub send_chats
 410 {
 411         my $self = shift;
 412         my $target = shift;
 413         my $text = shift;
 414
 415         my $msgid = DXProt::nextchatmsgid();
 416         $text = "#$msgid $text";
 417         $main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text));
 418 }
 419
 420 sub special_prompt
 421 {
 422         my $self = shift;
 423         my $prompt = shift;
 424         my @call;
 425         for (@{$self->{talklist}}) {
 426                 my ($to, $via) = /(\S+)>(\S+)/;
 427                 $to = $_ unless $to;
 428                 push @call, $to;
 429         }
 430         return $self->msg($prompt, join(',', @call));
 431 }
 432
 433 sub talk_prompt
 434 {
 435         my $self = shift;
 436         return $self->special_prompt('talkprompt');
 437 }
 438
 439 sub chat_prompt
 440 {
 441         my $self = shift;
 442         return $self->special_prompt('chatprompt');
 443 }
 444
 445 #
 446 # send a load of stuff to a command user with page prompting
 447 # and stuff
 448 #
 449
 450 sub send_ans
 451 {
 452         my $self = shift;
 453
 454         if ($self->{pagelth} && @_ > $self->{pagelth}) {
 455                 my $i;
 456                 for ($i = $self->{pagelth}; $i-- > 0; ) {
 457                         my $line = shift @_;
 458                         $line =~ s/\s+$//o;     # why am having to do this?
 459                         $self->send($line);
 460                 }
 461                 $self->{pagedata} =  [ @_ ];
 462                 $self->state('page');
 463                 $self->send($self->msg('page', scalar @_));
 464         } else {
 465                 for (@_) {
 466                         if (defined $_) {
 467                                 $self->send($_);
 468                         } else {
 469                                 $self->send('');
 470                         }
 471                 }
 472         }
 473 }
 474
 475 #
 476 # this is the thing that runs the command, it is done like this for the
 477 # benefit of remote command execution
 478 #
 479
 480 sub run_cmd
 481 {
 482         my $self = shift;
 483         my $user = $self->{user};
 484         my $call = $self->{call};
 485         my $cmdline = shift;
 486         my @ans;
 487
 488         return () if length $cmdline == 0;
 489
 490         # split the command line up into parts, the first part is the command
 491         my ($cmd, $args) = split /\s+/, $cmdline, 2;
 492         $args = "" unless defined $args;
 493
 494         if ($cmd) {
 495
 496                 # check cmd
 497                 if ($cmd =~ m|^/| || $cmd =~ m|[^-?\w/]|) {
 498                         LogDbg('DXCommand', "cmd: invalid characters in '$cmd'");
 499                         return $self->_error_out('e1');
 500                 }
 501
 502                 # strip out // on command only
 503                 $cmd =~ s|//|/|g;
 504
 505                 my ($path, $fcmd);
 506
 507                 dbg("cmd: $cmd") if isdbg('command');
 508
 509                 # alias it if possible
 510                 my $acmd = CmdAlias::get_cmd($cmd);
 511                 if ($acmd) {
 512                         ($cmd, $args) = split /\s+/, "$acmd $args", 2;
 513                         $args = "" unless defined $args;
 514                         dbg("cmd: aliased $cmd $args") if isdbg('command');
 515                 }
 516
 517                 # first expand out the entry to a command
 518                 ($path, $fcmd) = search($main::localcmd, $cmd, "pl");
 519                 ($path, $fcmd) = search($main::cmd, $cmd, "pl") unless $path && $fcmd;
 520
 521                 if ($path && $cmd) {
 522                         dbg("cmd: path $cmd cmd: $fcmd") if isdbg('command');
 523
 524                         my $package = find_cmd_name($path, $fcmd);
 525                         return ($@) if $@;
 526
 527                         if ($package && $self->can("${package}::handle")) {
 528                                 no strict 'refs';
 529                                 dbg("cmd: package $package") if isdbg('command');
 530                                 eval { @ans = &{"${package}::handle"}($self, $args) };
 531                                 return (DXDebug::shortmess($@)) if $@;
 532                         } else {
 533                                 dbg("cmd: $package not present") if isdbg('command');
 534                                 return $self->_error_out('e1');
 535                         }
 536                 } else {
 537                         dbg("cmd: $cmd not found") if isdbg('command');
 538                         return $self->_error_out('e1');
 539                 }
 540         }
 541
 542         my $ok = shift @ans;
 543         if ($ok) {
 544                 delete $self->{errors};
 545         } else {
 546                 if (++$self->{errors} > $DXChannel::maxerrors) {
 547                         $self->send($self->msg('e26'));
 548                         $self->disconnect;
 549                         return ();
 550                 }
 551         }
 552         return map {s/([^\s])\s+$/$1/; $_} @ans;
 553 }
 554
 555 #
 556 # This is called from inside the main cluster processing loop and is used
 557 # for despatching commands that are doing some long processing job
 558 #
 559 sub process
 560 {
 561         my $t = time;
 562         my @dxchan = DXChannel::get_all();
 563         my $dxchan;
 564
 565         foreach $dxchan (@dxchan) {
 566                 next if $dxchan->sort ne 'U';
 567
 568                 # send a outstanding message prompt if required
 569                 if ($t >= $dxchan->lastmsgpoll + $msgpolltime) {
 570                         $dxchan->send($dxchan->msg('m9')) if DXMsg::for_me($dxchan->call);
 571                         $dxchan->lastmsgpoll($t);
 572                 }
 573
 574                 # send a prompt if no activity out on this channel
 575                 if ($t >= $dxchan->t + $main::user_interval) {
 576                         $dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 577                         $dxchan->t($t);
 578                 }
 579         }
 580
 581         while (my ($k, $v) = each %nothereslug) {
 582                 if ($main::systime >= $v + 300) {
 583                         delete $nothereslug{$k};
 584                 }
 585         }
 586
 587         import_cmd();
 588 }
 589
 590 #
 591 # finish up a user context
 592 #
 593 sub disconnect
 594 {
 595         my $self = shift;
 596         my $call = $self->call;
 597
 598         return if $self->{disconnecting}++;
 599
 600         delete $self->{senddbg};
 601
 602         my $uref = Route::User::get($call);
 603         my @rout;
 604         if ($uref) {
 605 #               @rout = $main::routeroot->del_user($uref);
 606                 @rout = DXProt::_del_thingy($main::routeroot, [$call, 0]);
 607
 608                 dbg("B/C PC17 on $main::mycall for: $call") if isdbg('route');
 609
 610                 # issue a pc17 to everybody interested
 611                 $main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
 612                 $main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes;
 613         } else {
 614                 confess "trying to disconnect a non existant user $call";
 615         }
 616
 617         # I was the last node visited
 618     $self->user->node($main::mycall);
 619
 620         # send info to all logged in thingies
 621         $self->tell_login('logoutu');
 622         $self->tell_buddies('logoutb');
 623
 624         LogDbg('DXCommand', "$call disconnected");
 625
 626         $self->SUPER::disconnect;
 627 }
 628
 629 #
 630 # short cut to output a prompt
 631 #
 632
 633 sub prompt
 634 {
 635         my $self = shift;
 636
 637         return if $self->{gtk};         # 'cos prompts are not a concept that applies here
 638
 639         my $call = $self->call;
 640         my $date = cldate($main::systime);
 641         my $time = ztime($main::systime);
 642         my $prompt = $self->{prompt} || $self->msg('pr');
 643
 644         $call = "($call)" unless $self->here;
 645         $prompt =~ s/\%C/$call/g;
 646         $prompt =~ s/\%D/$date/g;
 647         $prompt =~ s/\%T/$time/g;
 648         $prompt =~ s/\%M/$main::mycall/g;
 649
 650         $self->send($prompt);
 651 }
 652
 653 # broadcast a message to all users [except those mentioned after buffer]
 654 sub broadcast
 655 {
 656         my $pkg = shift;                        # ignored
 657         my $s = shift;                          # the line to be rebroadcast
 658
 659     foreach my $dxchan (DXChannel::get_all()) {
 660                 next unless $dxchan->{sort} eq 'U'; # only interested in user channels
 661                 next if grep $dxchan == $_, @_;
 662                 $dxchan->send($s);                      # send it
 663         }
 664 }
 665
 666 # gimme all the users
 667 sub get_all
 668 {
 669         return grep {$_->{sort} eq 'U'} DXChannel::get_all();
 670 }
 671
 672 # run a script for this user
 673 sub run_script
 674 {
 675         my $self = shift;
 676         my $silent = shift || 0;
 677
 678 }
 679
 680 #
 681 # search for the command in the cache of short->long form commands
 682 #
 683
 684 sub search
 685 {
 686         my ($path, $short_cmd, $suffix) = @_;
 687         my ($apath, $acmd);
 688
 689         # commands are lower case
 690         $short_cmd = lc $short_cmd;
 691         dbg("command: $path $short_cmd\n") if isdbg('command');
 692
 693         # do some checking for funny characters
 694         return () if $short_cmd =~ /\/$/;
 695
 696         # return immediately if we have it
 697         ($apath, $acmd) = split ',', $cmd_cache{$short_cmd} if $cmd_cache{$short_cmd};
 698         if ($apath && $acmd) {
 699                 dbg("cached $short_cmd = ($apath, $acmd)\n") if isdbg('command');
 700                 return ($apath, $acmd);
 701         }
 702
 703         # if not guess
 704         my @parts = split '/', $short_cmd;
 705         my $dirfn;
 706         my $curdir = $path;
 707
 708         while (my $p = shift @parts) {
 709                 opendir(D, $curdir) or confess "can't open $curdir $!";
 710                 my @ls = readdir D;
 711                 closedir D;
 712
 713                 # if this isn't the last part
 714                 if (@parts) {
 715                         my $found;
 716                         foreach my $l (sort @ls) {
 717                                 next if $l =~ /^\./;
 718                                 if ((-d "$curdir/$l") && $p eq substr($l, 0, length $p)) {
 719                                         dbg("got dir: $curdir/$l\n") if isdbg('command');
 720                                         $dirfn .= "$l/";
 721                                         $curdir .= "/$l";
 722                                         $found++;
 723                                         last;
 724                                 }
 725                         }
 726                         # only proceed if we find the directory asked for
 727                         return () unless $found;
 728                 } else {
 729                         foreach my $l (sort @ls) {
 730                                 next if $l =~ /^\./;
 731                                 next unless $l =~ /\.$suffix$/;
 732                                 if ($p eq substr($l, 0, length $p)) {
 733                                         $l =~ s/\.$suffix$//;
 734                                         $dirfn = "" unless $dirfn;
 735                                         $cmd_cache{$short_cmd} = join(',', ($path, "$dirfn$l")); # cache it
 736                                         dbg("got path: $path cmd: $dirfn$l\n") if isdbg('command');
 737                                         return ($path, "$dirfn$l");
 738                                 }
 739                         }
 740                 }
 741         }
 742
 743         return ();
 744 }
 745
 746 # clear the command name cache
 747 sub clear_cmd_cache
 748 {
 749         no strict 'refs';
 750
 751         for my $k (keys %Cache) {
 752                 unless ($k =~ /cmd_cache/) {
 753                         dbg("Undefining cmd $k") if isdbg('command');
 754                         undef $DXCommandmode::{"${k}::"};
 755                 }
 756         }
 757         %cmd_cache = ();
 758         %Cache = ( cmd_clear_cmd_cache  => $Cache{cmd_clear_cmd_cache} );
 759 }
 760
 761 #
 762 # the persistant execution of things from the command directories
 763 #
 764 #
 765 # This allows perl programs to call functions dynamically
 766 #
 767 # This has been nicked directly from the perlembed pages
 768 #
 769 #require Devel::Symdump;
 770
 771 sub valid_package_name {
 772         my $string = shift;
 773         $string =~ s|([^A-Za-z0-9_/])|sprintf("_%2x",unpack("C",$1))|eg;
 774
 775         $string =~ s|/|_|g;
 776         return "cmd_$string";
 777 }
 778
 779 #
 780 # this bit of magic finds a command in the offered directory
 781 sub find_cmd_name {
 782         my $path = shift;
 783         my $cmdname = shift;
 784         my $package = valid_package_name($cmdname);
 785         my $filename = "$path/$cmdname.pl";
 786         my $mtime = -M $filename;
 787
 788         # return if we can't find it
 789         $errstr = undef;
 790         unless (defined $mtime) {
 791                 $errstr = DXM::msg('e1');
 792                 return undef;
 793         }
 794
 795         if(exists $Cache{$package} && exists $Cache{$package}->{mtime} && $Cache{$package}->{mtime} <= $mtime) {
 796                 #we have compiled this subroutine already,
 797                 #it has not been updated on disk, nothing left to do
 798                 #print STDERR "already compiled $package->handler\n";
 799                 dbg("find_cmd_name: $package cached") if isdbg('command');
 800         } else {
 801
 802                 my $sub = readfilestr($filename);
 803                 unless ($sub) {
 804                         $errstr = "Syserr: can't open '$filename' $!";
 805                         return undef;
 806                 };
 807
 808                 #wrap the code into a subroutine inside our unique package
 809                 my $eval = qq(package DXCommandmode::$package; use POSIX qw{:math_h}; use DXLog; use DXDebug; use DXUser; use DXUtil; use Minimuf; use Sun; our \@ISA = qw{DXCommandmode}; );
 810
 811
 812                 if ($sub =~ m|\s*sub\s+handle\n|) {
 813                         $eval .= $sub;
 814                 } else {
 815                         $eval .= qq(sub handle { $sub });
 816                 }
 817
 818                 if (isdbg('eval')) {
 819                         my @list = split /\n/, $eval;
 820                         my $line;
 821                         for (@list) {
 822                                 dbg($_ . "\n") if isdbg('eval');
 823                         }
 824                 }
 825
 826                 # get rid of any existing sub and try to compile the new one
 827                 no strict 'refs';
 828
 829                 if (exists $Cache{$package}) {
 830                         dbg("find_cmd_name: Redefining $package") if isdbg('command');
 831                         undef $DXCommandmode::{"${package}::"};
 832                         delete $Cache{$package};
 833                 } else {
 834                         dbg("find_cmd_name: Defining $package") if isdbg('command');
 835                 }
 836
 837                 eval $eval;
 838
 839                 $Cache{$package} = {mtime => $mtime } unless $@;
 840         }
 841
 842         return "DXCommandmode::$package";
 843 }
 844
 845 sub send
 846 {
 847         my $self = shift;
 848         if ($self->{gtk}) {
 849                 for (@_) {
 850                         $self->SUPER::send(dd(['cmd',$_]));
 851                 }
 852         } else {
 853                 $self->SUPER::send(@_);
 854         }
 855 }
 856
 857 sub local_send
 858 {
 859         my ($self, $let, $buf) = @_;
 860         if ($self->{state} eq 'prompt' || $self->{state} eq 'talk' || $self->{state} eq 'chat') {
 861                 if ($self->{enhanced}) {
 862                         $self->send_later($let, $buf);
 863                 } else {
 864                         $self->send($buf);
 865                 }
 866         } else {
 867                 $self->delay($buf);
 868         }
 869 }
 870
 871 # send a talk message here
 872 sub talk
 873 {
 874         my ($self, $from, $to, $via, $line, $onode) = @_;
 875         $line =~ s/\\5E/\^/g;
 876         if ($self->{talk}) {
 877                 if ($self->{gtk}) {
 878                         $self->local_send('T', dd(['talk',$to,$from,$via,$line]));
 879                 } else {
 880                         $self->local_send('T', "$to de $from: $line");
 881                 }
 882         }
 883         Log('talk', $to, $from, '<' . ($onode || '*'), $line);
 884         # send a 'not here' message if required
 885         unless ($self->{here} && $from ne $to) {
 886                 my $key = "$to$from";
 887                 unless (exists $nothereslug{$key}) {
 888                         my ($ref, $dxchan);
 889                         if (($ref = Route::get($from)) && ($dxchan = $ref->dxchan)) {
 890                                 my $name = $self->user->name || $to;
 891                                 my $s = $self->user->nothere || $dxchan->msg('nothere', $name);
 892                                 $nothereslug{$key} = $main::systime;
 893                                 $dxchan->talk($to, $from, undef, $s);
 894                         }
 895                 }
 896         }
 897 }
 898
 899 # send an announce
 900 sub announce
 901 {
 902         my $self = shift;
 903         my $line = shift;
 904         my $isolate = shift;
 905         my $to = shift;
 906         my $target = shift;
 907         my $text = shift;
 908         my ($filter, $hops);
 909
 910         if (!$self->{ann_talk} && $to ne $self->{call}) {
 911                 my $call = AnnTalk::is_talk_candidate($_[0], $text);
 912                 return if $call;
 913         }
 914
 915         if ($self->{annfilter}) {
 916                 ($filter, $hops) = $self->{annfilter}->it(@_ );
 917                 return unless $filter;
 918         }
 919
 920         unless ($self->{ann}) {
 921                 return if $_[0] ne $main::myalias && $_[0] ne $main::mycall;
 922         }
 923         return if $target eq 'SYSOP' && $self->{priv} < 5;
 924         my $buf;
 925         if ($self->{gtk}) {
 926                 $buf = dd(['ann', $to, $target, $text, @_])
 927         } else {
 928                 $buf = "$to$target de $_[0]: $text";
 929                 $buf =~ s/\%5E/^/g;
 930                 $buf .= "\a\a" if $self->{beep};
 931         }
 932         $self->local_send($target eq 'WX' ? 'W' : 'N', $buf);
 933 }
 934
 935 # send a chat
 936 sub chat
 937 {
 938         my $self = shift;
 939         my $line = shift;
 940         my $isolate = shift;
 941         my $target = shift;
 942         my $to = shift;
 943         my $text = shift;
 944         my ($filter, $hops);
 945
 946         return unless grep uc $_ eq $target, @{$self->{user}->{group}};
 947
 948         $text =~ s/^\#\d+ //;
 949         my $buf;
 950         if ($self->{gtk}) {
 951                 $buf = dd(['chat', $to, $target, $text, @_])
 952         } else {
 953                 $buf = "$target de $_[0]: $text";
 954                 $buf =~ s/\%5E/^/g;
 955                 $buf .= "\a\a" if $self->{beep};
 956         }
 957         $self->local_send('C', $buf);
 958 }
 959
 960 sub format_dx_spot
 961 {
 962         my $self = shift;
 963
 964         my $t = ztime($_[2]);
 965         my $loc = '';
 966         my $clth = $self->{consort} eq 'local' ? 29 : 30;
 967         my $comment = substr (($_[3] || ''), 0, $clth);
 968         $comment .= ' ' x ($clth - length($comment));
 969         if ($self->{user}->wantgrid) {
 970                 my $ref = DXUser::get_current($_[4]);
 971                 if ($ref) {
 972                         $loc = $ref->qra || '';
 973                         $loc = ' ' . substr($loc, 0, 4) if $loc;
 974                 }
 975         }
 976
 977         if ($self->{user}->wantdxitu) {
 978                 $loc = ' ' . sprintf("%2d", $_[10]) if defined $_[10];
 979                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . sprintf("%2d", $_[8]) if defined $_[8];
 980         } elsif ($self->{user}->wantdxcq) {
 981                 $loc = ' ' . sprintf("%2d", $_[11]) if defined $_[11];
 982                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . sprintf("%2d", $_[9]) if defined $_[9];
 983         } elsif ($self->{user}->wantusstate) {
 984                 $loc = ' ' . $_[13] if $_[13];
 985                 $comment = substr($comment, 0,  $self->{consort} eq 'local' ? 26 : 27) . ' ' . $_[12] if $_[12];
 986         }
 987
 988         return sprintf "DX de %-7.7s%11.1f  %-12.12s %-s $t$loc", "$_[4]:", $_[0], $_[1], $comment;
 989 }
 990
 991 # send a dx spot
 992 sub dx_spot
 993 {
 994         my $self = shift;
 995         my $line = shift;
 996         my $isolate = shift;
 997         return unless $self->{dx};
 998
 999         my ($filter, $hops);
1000
1001         if ($self->{spotsfilter}) {
1002                 ($filter, $hops) = $self->{spotsfilter}->it(@_ );
1003                 return unless $filter;
1004         }
1005
1006         dbg('spot: "' . join('","', @_) . '"') if isdbg('dxspot');
1007
1008         my $buf;
1009         if ($self->{ve7cc}) {
1010                 $buf = VE7CC::dx_spot($self, @_);
1011         } elsif ($self->{gtk}) {
1012                 my ($dxloc, $byloc);
1013
1014                 my $ref = DXUser::get_current($_[4]);
1015                 if ($ref) {
1016                         $byloc = $ref->qra;
1017                         $byloc = substr($byloc, 0, 4) if $byloc;
1018                 }
1019
1020                 my $spot = $_[1];
1021                 $spot =~ s|/\w{1,4}$||;
1022                 $ref = DXUser::get_current($spot);
1023                 if ($ref) {
1024                         $dxloc = $ref->qra;
1025                         $dxloc = substr($dxloc, 0, 4) if $dxloc;
1026                 }
1027                 $buf = dd(['dx', @_, ($dxloc||''), ($byloc||'')]);
1028
1029         } else {
1030                 $buf = $self->format_dx_spot(@_);
1031                 $buf .= "\a\a" if $self->{beep};
1032                 $buf =~ s/\%5E/^/g;
1033         }
1034
1035         $self->local_send('X', $buf);
1036 }
1037
1038 sub wwv
1039 {
1040         my $self = shift;
1041         my $line = shift;
1042         my $isolate = shift;
1043         my ($filter, $hops);
1044
1045         return unless $self->{wwv};
1046
1047         if ($self->{wwvfilter}) {
1048                 ($filter, $hops) = $self->{wwvfilter}->it(@_[7..$#_] );
1049                 return unless $filter;
1050         }
1051
1052         my $buf;
1053         if ($self->{gtk}) {
1054                 $buf = dd(['wwv', @_])
1055         } else {
1056                 $buf = "WWV de $_[6] <$_[1]>:   SFI=$_[2], A=$_[3], K=$_[4], $_[5]";
1057                 $buf .= "\a\a" if $self->{beep};
1058         }
1059
1060         $self->local_send('V', $buf);
1061 }
1062
1063 sub wcy
1064 {
1065         my $self = shift;
1066         my $line = shift;
1067         my $isolate = shift;
1068         my ($filter, $hops);
1069
1070         return unless $self->{wcy};
1071
1072         if ($self->{wcyfilter}) {
1073                 ($filter, $hops) = $self->{wcyfilter}->it(@_ );
1074                 return unless $filter;
1075         }
1076
1077         my $buf;
1078         if ($self->{gtk}) {
1079                 $buf = dd(['wcy', @_])
1080         } else {
1081                 $buf = "WCY de $_[10] <$_[1]> : K=$_[4] expK=$_[5] A=$_[3] R=$_[6] SFI=$_[2] SA=$_[7] GMF=$_[8] Au=$_[9]";
1082                 $buf .= "\a\a" if $self->{beep};
1083         }
1084         $self->local_send('Y', $buf);
1085 }
1086
1087 # broadcast debug stuff to all interested parties
1088 sub broadcast_debug
1089 {
1090         my $s = shift;                          # the line to be rebroadcast
1091
1092         foreach my $dxchan (DXChannel::get_all) {
1093                 next unless $dxchan->{enhanced} && $dxchan->{senddbg};
1094                 if ($dxchan->{gtk}) {
1095                         $dxchan->send_later('L', dd(['db', $s]));
1096                 } else {
1097                         $dxchan->send_later('L', $s);
1098                 }
1099         }
1100 }
1101
1102 sub do_entry_stuff
1103 {
1104         my $self = shift;
1105         my $line = shift;
1106         my @out;
1107
1108         if ($self->state eq 'enterbody') {
1109                 my $loc = $self->{loc} || confess "local var gone missing" ;
1110                 if ($line eq "\032" || $line eq '%1A' || uc $line eq "/EX") {
1111                         no strict 'refs';
1112                         push @out, &{$loc->{endaction}}($self);          # like this for < 5.8.0
1113                         $self->func(undef);
1114                         $self->state('prompt');
1115                 } elsif ($line eq "\031" || uc $line eq "/ABORT" || uc $line eq "/QUIT") {
1116                         push @out, $self->msg('m10');
1117                         delete $loc->{lines};
1118                         delete $self->{loc};
1119                         $self->func(undef);
1120                         $self->state('prompt');
1121                 } else {
1122                         push @{$loc->{lines}}, length($line) > 0 ? $line : " ";
1123                         # i.e. it ain't and end or abort, therefore store the line
1124                 }
1125         } else {
1126                 confess "Invalid state $self->{state}";
1127         }
1128         return @out;
1129 }
1130
1131 sub store_startup_script
1132 {
1133         my $self = shift;
1134         my $loc = $self->{loc} || confess "local var gone missing" ;
1135         my @out;
1136         my $call = $loc->{call} || confess "callsign gone missing";
1137         confess "lines array gone missing" unless ref $loc->{lines};
1138         my $r = Script::store($call, $loc->{lines});
1139         if (defined $r) {
1140                 if ($r) {
1141                         push @out, $self->msg('m19', $call, $r);
1142                 } else {
1143                         push @out, $self->msg('m20', $call);
1144                 }
1145         } else {
1146                 push @out, "error opening startup script $call $!";
1147         }
1148         return @out;
1149 }
1150
1151 # Import any commands contained in any files in import_cmd directory
1152 #
1153 # If the filename has a recogisable callsign as some delimited part
1154 # of it, then this is the user the command will be run as.
1155 #
1156 sub import_cmd
1157 {
1158         # are there any to do in this directory?
1159         return unless -d $cmdimportdir;
1160         unless (opendir(DIR, $cmdimportdir)) {
1161                 LogDbg('err', "can\'t open $cmdimportdir $!");
1162                 return;
1163         }
1164
1165         my @names = readdir(DIR);
1166         closedir(DIR);
1167         my $name;
1168         foreach $name (@names) {
1169                 next if $name =~ /^\./;
1170
1171                 my $s = Script->new($name, $cmdimportdir);
1172                 if ($s) {
1173                         LogDbg('DXCommand', "Run import cmd file $name");
1174                         my @cat = split /[^A-Za-z0-9]+/, $name;
1175                         my ($call) = grep {is_callsign(uc $_)} @cat;
1176                         $call ||= $main::mycall;
1177                         $call = uc $call;
1178                         my @out;
1179
1180
1181                         $s->inscript(0);        # switch off script checks
1182
1183                         if ($call eq $main::mycall) {
1184                                 @out = $s->run($main::me, 1);
1185                         } else {
1186                                 my $dxchan = DXChannel::get($call);
1187                             if ($dxchan) {
1188                                         @out = $s->run($dxchan, 1);
1189                                 } else {
1190                                         my $u = DXUser::get($call);
1191                                         if ($u) {
1192                                                 $dxchan = $main::me;
1193                                                 my $old = $dxchan->{call};
1194                                                 my $priv = $dxchan->{priv};
1195                                                 my $user = $dxchan->{user};
1196                                                 $dxchan->{call} = $call;
1197                                                 $dxchan->{priv} = $u->priv;
1198                                                 $dxchan->{user} = $u;
1199                                                 @out = $s->run($dxchan, 1);
1200                                                 $dxchan->{call} = $call;
1201                                                 $dxchan->{priv} = $priv;
1202                                                 $dxchan->{user} = $user;
1203                                         } else {
1204                                                 LogDbg('err', "Trying to run import cmd for non-existant user $call");
1205                                         }
1206                                 }
1207                         }
1208                         $s->erase;
1209                         for (@out) {
1210                                 LogDbg('DXCommand', "Import cmd $name/$call: $_");
1211                         }
1212                 } else {
1213                         LogDbg('err', "Failed to open $cmdimportdir/$name $!");
1214                         unlink "$cmdimportdir/$name";
1215                 }
1216         }
1217 }
1218
1219 sub print_find_reply
1220 {
1221         my ($self, $node, $target, $flag, $ms) = @_;
1222         my $sort = $flag == 2 ? "External" : "Local";
1223         $self->send("$sort $target found at $node in $ms ms" );
1224 }
1225
1226 # send the most relevant motd
1227 sub send_motd
1228 {
1229         my $self = shift;
1230         my $motd;
1231
1232         unless ($self->{registered}) {
1233                 $motd = "${main::motd}_nor_$self->{lang}";
1234                 $motd = "${main::motd}_nor" unless -e $motd;
1235         }
1236         $motd = "${main::motd}_$self->{lang}" unless $motd && -e $motd;
1237         $motd = $main::motd unless $motd && -e $motd;
1238         if ($self->conn->ax25) {
1239                 if ($motd) {
1240                         $motd = "${motd}_ax25" if -e "${motd}_ax25";
1241                 } else {
1242                         $motd = "${main::motd}_ax25" if -e "${main::motd}_ax25";
1243                 }
1244         }
1245         $self->send_file($motd) if -e $motd;
1246 }
1247
1248 sub http_get
1249 {
1250         my $self = shift;
1251         my ($host, $uri, $cb) = @_;
1252
1253         # store results here
1254         my ($response, $header, $body);
1255
1256         my $handle;
1257         $handle = AnyEvent::Handle->new(
1258                                                                         connect  => [$host => 'http'],
1259                                                                         on_error => sub {
1260                                                                                 $cb->("HTTP/1.0 500 $!");
1261                                                                                 $self->anyevent_del($handle);
1262                                                                                 $handle->destroy; # explicitly destroy handle
1263                                                                         },
1264                                                                         on_eof   => sub {
1265                                                                                 $cb->($response, $header, $body);
1266                                                                                 $self->anyevent_del($handle);
1267                                                                                 $handle->destroy; # explicitly destroy handle
1268                                                                         }
1269                                                                    );
1270         $self->anyevent_add($handle);
1271         $handle->push_write ("GET $uri HTTP/1.0\015\012\015\012");
1272
1273         # now fetch response status line
1274         $handle->push_read (line => sub {
1275                                                         my ($handle, $line) = @_;
1276                                                         $response = $line;
1277                                                 });
1278
1279         # then the headers
1280         $handle->push_read (line => "\015\012\015\012", sub {
1281                                                         my ($handle, $line) = @_;
1282                                                         $header = $line;
1283                                                 });
1284
1285         # and finally handle any remaining data as body
1286         $handle->on_read (sub {
1287                                                   $body .= $_[0]->rbuf;
1288                                                   $_[0]->rbuf = "";
1289                                           });
1290 }
1291
1292 1;
1293 __END__