perl/console.pl

   1 #!/usr/bin/perl -w
   2 #
   3 # this is the operators console.
   4 #
   5 # Calling syntax is:-
   6 #
   7 # console.pl [callsign]
   8 #
   9 # if the callsign isn't given then the sysop callsign in DXVars.pm is assumed
  10 #
  11 # Copyright (c) 1999 Dirk Koopman G1TLH
  12 #
  13 # $Id$
  14 #
  15
  16 require 5.004;
  17
  18 # search local then perl directories
  19 BEGIN {
  20         # root of directory tree for this system
  21         $root = "/spider";
  22         $root = $ENV{'DXSPIDER_ROOT'} if $ENV{'DXSPIDER_ROOT'};
  23
  24         unshift @INC, "$root/perl";     # this IS the right way round!
  25         unshift @INC, "$root/local";
  26 }
  27
  28 use Msg;
  29 use DXVars;
  30 use DXDebug;
  31 use IO::File;
  32 use Curses;
  33
  34 use Carp qw{cluck};
  35
  36 use Console;
  37
  38 #
  39 # initialisation
  40 #
  41
  42 $call = "";                     # the callsign being used
  43 $conn = 0;                      # the connection object for the cluster
  44 $lasttime = time;               # lasttime something happened on the interface
  45
  46 $connsort = "local";
  47 @khistory = ();
  48 @shistory = ();
  49 $khistpos = 0;
  50 $spos = $pos = $lth = 0;
  51 $inbuf = "";
  52
  53 # do the screen initialisation
  54 sub do_initscr
  55 {
  56         $scr = new Curses;
  57         raw();
  58         noecho();
  59         $has_colors = has_colors();
  60
  61         if ($has_colors) {
  62                 start_color();
  63                 init_pair(0, $foreground, $background);
  64                 init_pair(1, COLOR_RED, $background);
  65                 init_pair(2, COLOR_YELLOW, $background);
  66                 init_pair(3, COLOR_GREEN, $background);
  67                 init_pair(4, COLOR_CYAN, $background);
  68                 init_pair(5, COLOR_BLUE, $background);
  69                 init_pair(6, COLOR_MAGENTA, $background);
  70         }
  71
  72         $top = $scr->subwin(LINES()-4, COLS, 0, 0);
  73         $top->intrflush(0);
  74         $top->scrollok(1);
  75         $scr->addstr(LINES()-4, 0, '-' x COLS);
  76         $bot = $scr->subwin(3, COLS, LINES()-3, 0);
  77         $bot->intrflush(0);
  78         $bot->scrollok(1);
  79         $bot->keypad(1);
  80         $bot->move(1,0);
  81         $scr->refresh();
  82
  83         $pagel = LINES()-4;
  84         $mycallcolor = COLOR_PAIR(1) unless $mycallcolor;
  85 }
  86
  87 sub do_resize
  88 {
  89         undef $scr;
  90         do_initscr();
  91 }
  92
  93 # cease communications
  94 sub cease
  95 {
  96         my $sendz = shift;
  97         if ($conn && $sendz) {
  98                 $conn->send_now("Z$call|bye...\n");
  99         }
 100         endwin();
 101         dbgclose();
 102         print @_ if @_;
 103         exit(0);
 104 }
 105
 106 # terminate program from signal
 107 sub sig_term
 108 {
 109         cease(1, @_);
 110 }
 111
 112 # determine the colour of the line
 113 sub setattr
 114 {
 115         if ($has_colors) {
 116                 foreach my $ref (@colors) {
 117                         if ($_[0] =~ m{$$ref[0]}) {
 118                                 $top->attrset($$ref[1]);
 119                                 last;
 120                         }
 121                 }
 122         }
 123 }
 124
 125 # measure the no of screen lines a line will take
 126 sub measure
 127 {
 128         my $line = shift;
 129         return 0 unless $line;
 130
 131         my $l = length $line;
 132         my $lines = int ($l / COLS());
 133         $lines++ if $l / COLS() > $lines;
 134         return $lines;
 135 }
 136
 137 # display the top screen
 138 sub show_screen
 139 {
 140         if ($spos == @shistory - 1) {
 141
 142                 # if we really are scrolling thru at the end of the history
 143                 my $line = $shistory[$spos];
 144                 $top->addstr("\n") if $spos > 0;
 145                 setattr($line);
 146                 $top->addstr($line);
 147                 $top->attrset(COLOR_PAIR(0)) if $has_colors;
 148                 $spos = @shistory;
 149
 150         } else {
 151
 152                 # anywhere else
 153                 my ($i, $l);
 154                 my $p = $spos-1;
 155                 for ($i = 0; $i < $pagel && $p >= 0; ) {
 156                         $l = measure($shistory[$p]);
 157                         $i += $l;
 158                         $p-- if $i < $pagel;
 159                 }
 160                 $p = 0 if $p < 0;
 161
 162                 $top->move(0, 0);
 163                 $top->attrset(COLOR_PAIR(0)) if $has_colors;
 164                 $top->clrtobot();
 165                 for ($i = 0; $i < $pagel && $p < @shistory; $p++) {
 166                         my $line = $shistory[$p];
 167                         my $lines = measure($line);
 168                         last if $i + $lines > $pagel;
 169                         setattr($line);
 170                         $top->addstr($i, 0, $line);
 171                         $top->attrset(COLOR_PAIR(0)) if $has_colors;
 172                         $i += $lines;
 173                 }
 174                 $spos = $p;
 175                 $spos = @shistory if $spos > @shistory;
 176         }
 177     my $shl = @shistory;
 178         my $add = "-$spos-$shl";
 179     $scr->addstr(LINES()-4, 0, '-' x (COLS() - (length($call) + length($add))));
 180         $scr->attrset($mycallcolor) if $has_colors;
 181         $scr->addstr("$call");
 182         $scr->attrset(COLOR_PAIR(0)) if $has_colors;
 183     $scr->addstr($add);
 184         $scr->refresh();
 185 #       $top->refresh();
 186 }
 187
 188 # add a line to the end of the top screen
 189 sub addtotop
 190 {
 191         my $inbuf = shift;
 192         push @shistory, $inbuf;
 193         shift @shistory if @shistory > $maxshist;
 194         show_screen();
 195 }
 196
 197 # handle incoming messages
 198 sub rec_socket
 199 {
 200         my ($con, $msg, $err) = @_;
 201         if (defined $err && $err) {
 202                 cease(1);
 203         }
 204         if (defined $msg) {
 205                 my ($sort, $call, $line) = $msg =~ /^(\w)(\S+)\|(.*)$/;
 206
 207                 if ($sort && $sort eq 'D') {
 208                         addtotop($line);
 209                 } elsif ($sort && $sort eq 'Z') { # end, disconnect, go, away .....
 210                         cease(0);
 211                 }
 212         }
 213         $top->refresh();
 214         $lasttime = time;
 215 }
 216
 217 sub rec_stdin
 218 {
 219         my ($fh) = @_;
 220
 221         $r = $bot->getch();
 222
 223         #  my $prbuf;
 224         #  $prbuf = $buf;
 225         #  $prbuf =~ s/\r/\\r/;
 226         #  $prbuf =~ s/\n/\\n/;
 227         #  print "sys: $r ($prbuf)\n";
 228         if (defined $r) {
 229
 230                 if ($r eq KEY_ENTER || $r eq "\n" || $r eq "\r") {
 231
 232                         # save the lines
 233                         if ($inbuf) {
 234                                 # check for a pling and do a search back for a command
 235                                 if ($inbuf =~ /^!/o) {
 236                                         my $i;
 237                                         $inbuf =~ s/^!//o;
 238                                         for ($i = $#khistory; $i >= 0; $i--) {
 239                                                 if ($khistory[$i] =~ /^$inbuf/) {
 240                                                         $inbuf = $khistory[$i];
 241                                                         last;
 242                                                 }
 243                                         }
 244                                         if ($i < 0) {
 245                                                 beep();
 246                                                 return;
 247                                         }
 248                                 }
 249                                 push @khistory, $inbuf if $inbuf;
 250                                 shift @khistory if @khistory > $maxkhist;
 251                                 $khistpos = @khistory;
 252                                 $bot->move(0,0);
 253                                 $bot->clrtoeol();
 254                                 $bot->addstr(substr($inbuf, 0, COLS));
 255                         }
 256
 257                         # add it to the monitor window
 258                         unless ($spos == @shistory) {
 259                                 $spos = @shistory;
 260                                 show_screen();
 261                         };
 262                         addtotop($inbuf) if $inbuf;
 263
 264                         # send it to the cluster
 265                         $inbuf = " " unless $inbuf;
 266                         $conn->send_later("I$call|$inbuf");
 267                         $inbuf = "";
 268                         $pos = $lth = 0;
 269                 } elsif ($r eq KEY_UP || $r eq "\020") {
 270                         if ($khistpos > 0) {
 271                                 --$khistpos;
 272                                 $inbuf = $khistory[$khistpos];
 273                                 $pos = $lth = length $inbuf;
 274                         } else {
 275                                 beep();
 276                         }
 277                 } elsif ($r eq KEY_DOWN || $r eq "\016") {
 278                         if ($khistpos < @khistory - 1) {
 279                                 ++$khistpos;
 280                                 $inbuf = $khistory[$khistpos];
 281                                 $pos = $lth = length $inbuf;
 282                         } else {
 283                                 beep();
 284                         }
 285                 } elsif ($r eq KEY_PPAGE || $r eq "\032") {
 286                         if ($spos > 0) {
 287                                 my ($i, $l);
 288                                 for ($i = 0; $i <= $pagel && $spos >= 0; ) {
 289                                         $l = measure($shistory[$spos]);
 290                                         $i += $l;
 291                                         $spos-- if $i <= $pagel;
 292                                 }
 293                                 $spos = 0 if $spos < 0;
 294                                 show_screen();
 295                         } else {
 296                                 beep();
 297                         }
 298                 } elsif ($r eq KEY_NPAGE || $r eq "\026") {
 299                         if ($spos < @shistory - 1) {
 300                                 my ($i, $l);
 301                                 for ($i = 0; $i <= $pagel && $spos <= @shistory; ) {
 302                                         $l = measure($shistory[$spos]);
 303                                         $i += $l;
 304                                         $spos++ if $i <= $pagel;
 305                                 }
 306                                 $spos = @shistory if $spos >= @shistory - 1;
 307                                 show_screen();
 308                         } else {
 309                                 beep();
 310                         }
 311                 } elsif ($r eq KEY_LEFT || $r eq "\002") {
 312                         if ($pos > 0) {
 313                                 --$pos;
 314                         } else {
 315                                 beep();
 316                         }
 317                 } elsif ($r eq KEY_RIGHT || $r eq "\006") {
 318                         if ($pos < $lth) {
 319                                 ++$pos;
 320                         } else {
 321                                 beep();
 322                         }
 323                 } elsif ($r eq KEY_HOME || $r eq "\001") {
 324                         $pos = 0;
 325                 } elsif ($r eq KEY_END || $r eq "\005") {
 326                         $pos = $lth;
 327                 } elsif ($r eq KEY_BACKSPACE || $r eq "\010") {
 328                         if ($pos > 0) {
 329                                 my $a = substr($inbuf, 0, $pos-1);
 330                                 my $b = substr($inbuf, $pos) if $pos < $lth;
 331                                 $b = "" unless $b;
 332
 333                                 $inbuf = $a . $b;
 334                                 --$lth;
 335                                 --$pos;
 336                         } else {
 337                                 beep();
 338                         }
 339                 } elsif ($r eq KEY_DC || $r eq "\004") {
 340                         if ($pos < $lth) {
 341                                 my $a = substr($inbuf, 0, $pos);
 342                                 my $b = substr($inbuf, $pos+1) if $pos < $lth;
 343                                 $b = "" unless $b;
 344
 345                                 $inbuf = $a . $b;
 346                                 --$lth;
 347                         } else {
 348                                 beep();
 349                         }
 350                 } elsif ($r ge ' ' && $r le '~') {
 351                         # move the top screen back to the bottom if you type something
 352                         if ($spos < @shistory) {
 353                                 $spos = @shistory;
 354                                 show_screen();
 355                         }
 356
 357                         # insert the character into the keyboard buffer
 358                         if ($pos < $lth) {
 359                                 my $a = substr($inbuf, 0, $pos);
 360                                 my $b = substr($inbuf, $pos);
 361                                 $inbuf = $a . $r . $b;
 362                         } else {
 363                                 $inbuf .= $r;
 364                         }
 365                         $pos++;
 366                         $lth++;
 367                 } elsif ($r eq "\014" || $r eq "\022") {
 368                         #do_resize();
 369                         return;
 370                 } elsif ($r eq "\013") {
 371                         $inbuf = substr($inbuf, 0, $pos);
 372                         $lth = length $inbuf;
 373                 } else {
 374                         beep();
 375                 }
 376                 $bot->move(1, 0);
 377                 $bot->clrtobot();
 378                 $bot->addstr($inbuf);
 379         }
 380         $bot->move(1, $pos);
 381         $bot->refresh();
 382 }
 383
 384
 385 #
 386 # deal with args
 387 #
 388
 389 $call = uc shift @ARGV if @ARGV;
 390 $call = uc $myalias if !$call;
 391
 392 if ($call eq $mycall) {
 393         print "You cannot connect as your cluster callsign ($mycall)\n";
 394         exit(0);
 395 }
 396
 397 $conn = Msg->connect("$clusteraddr", $clusterport, \&rec_socket);
 398 if (! $conn) {
 399         if (-r "$data/offline") {
 400                 open IN, "$data/offline" or die;
 401                 while (<IN>) {
 402                         print $_;
 403                 }
 404                 close IN;
 405         } else {
 406                 print "Sorry, the cluster $mycall is currently off-line\n";
 407         }
 408         exit(0);
 409 }
 410
 411
 412 $SIG{'INT'} = \&sig_term;
 413 $SIG{'TERM'} = \&sig_term;
 414 #$SIG{'WINCH'} = \&do_resize;
 415 $SIG{'HUP'} = 'IGNORE';
 416
 417 do_initscr();
 418
 419 $SIG{__DIE__} = \&sig_term;
 420
 421 $conn->send_now("A$call|$connsort");
 422 $conn->send_now("I$call|set/page $maxshist");
 423 $conn->send_now("I$call|set/nobeep");
 424
 425 Msg->set_event_handler(\*STDIN, "read" => \&rec_stdin);
 426
 427 for (;;) {
 428         my $t;
 429         Msg->event_loop(1, 1);
 430         $top->refresh() if $top->is_wintouched;
 431         $bot->refresh();
 432         $t = time;
 433         if ($t > $lasttime) {
 434                 $lasttime = $t;
 435         }
 436 }
 437
 438 exit(0);