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                 $spos = @shistory - 1 if $spos >= @shistory;
 144                 my $line = $shistory[$spos];
 145                 $top->addstr("\n") if $spos > 0;
 146                 setattr($line);
 147                 $top->addstr($line);
 148                 $top->attrset(COLOR_PAIR(0)) if $has_colors;
 149                 $spos = @shistory;
 150
 151         } else {
 152
 153                 # anywhere else
 154                 my ($i, $l);
 155                 my $p = $spos-1;
 156                 for ($i = 0; $i < $pagel && $p >= 0; ) {
 157                         $l = measure($shistory[$p]);
 158                         $i += $l;
 159                         $p-- if $i < $pagel;
 160                 }
 161                 $p = 0 if $p < 0;
 162
 163                 $top->move(0, 0);
 164                 $top->attrset(COLOR_PAIR(0)) if $has_colors;
 165                 $top->clrtobot();
 166                 for ($i = 0; $i < $pagel && $p < @shistory; $p++) {
 167                         my $line = $shistory[$p];
 168                         my $lines = measure($line);
 169                         last if $i + $lines > $pagel;
 170                         setattr($line);
 171                         $top->addstr($i, 0, $line);
 172                         $top->attrset(COLOR_PAIR(0)) if $has_colors;
 173                         $i += $lines;
 174                 }
 175                 $spos = $p;
 176                 $spos = @shistory if $spos > @shistory;
 177         }
 178     my $shl = @shistory;
 179         my $add = "-$spos-$shl";
 180     $scr->addstr(LINES()-4, 0, '-' x (COLS() - (length($call) + length($add))));
 181         $scr->attrset($mycallcolor) if $has_colors;
 182         $scr->addstr("$call");
 183         $scr->attrset(COLOR_PAIR(0)) if $has_colors;
 184     $scr->addstr($add);
 185         $scr->refresh();
 186 #       $top->refresh();
 187 }
 188
 189 # add a line to the end of the top screen
 190 sub addtotop
 191 {
 192         my $inbuf = shift;
 193         push @shistory, $inbuf;
 194         shift @shistory if @shistory > $maxshist;
 195         show_screen();
 196 }
 197
 198 # handle incoming messages
 199 sub rec_socket
 200 {
 201         my ($con, $msg, $err) = @_;
 202         if (defined $err && $err) {
 203                 cease(1);
 204         }
 205         if (defined $msg) {
 206                 my ($sort, $call, $line) = $msg =~ /^(\w)(\S+)\|(.*)$/;
 207
 208                 if ($sort && $sort eq 'D') {
 209                         addtotop($line);
 210                 } elsif ($sort && $sort eq 'Z') { # end, disconnect, go, away .....
 211                         cease(0);
 212                 }
 213         }
 214         $top->refresh();
 215         $lasttime = time;
 216 }
 217
 218 sub rec_stdin
 219 {
 220         my ($fh) = @_;
 221
 222         $r = $bot->getch();
 223
 224         #  my $prbuf;
 225         #  $prbuf = $buf;
 226         #  $prbuf =~ s/\r/\\r/;
 227         #  $prbuf =~ s/\n/\\n/;
 228         #  print "sys: $r ($prbuf)\n";
 229         if (defined $r) {
 230
 231                 if ($r eq KEY_ENTER || $r eq "\n" || $r eq "\r") {
 232
 233                         # save the lines
 234                         if ($inbuf) {
 235                                 # check for a pling and do a search back for a command
 236                                 if ($inbuf =~ /^!/o) {
 237                                         my $i;
 238                                         $inbuf =~ s/^!//o;
 239                                         for ($i = $#khistory; $i >= 0; $i--) {
 240                                                 if ($khistory[$i] =~ /^$inbuf/) {
 241                                                         $inbuf = $khistory[$i];
 242                                                         last;
 243                                                 }
 244                                         }
 245                                         if ($i < 0) {
 246                                                 beep();
 247                                                 return;
 248                                         }
 249                                 }
 250                                 push @khistory, $inbuf if $inbuf;
 251                                 shift @khistory if @khistory > $maxkhist;
 252                                 $khistpos = @khistory;
 253                                 $bot->move(0,0);
 254                                 $bot->clrtoeol();
 255                                 $bot->addstr(substr($inbuf, 0, COLS));
 256                         }
 257
 258                         # add it to the monitor window
 259                         unless ($spos == @shistory) {
 260                                 $spos = @shistory;
 261                                 show_screen();
 262                         };
 263                         addtotop($inbuf) if $inbuf;
 264
 265                         # send it to the cluster
 266                         $inbuf = " " unless $inbuf;
 267                         $conn->send_later("I$call|$inbuf");
 268                         $inbuf = "";
 269                         $pos = $lth = 0;
 270                 } elsif ($r eq KEY_UP || $r eq "\020") {
 271                         if ($khistpos > 0) {
 272                                 --$khistpos;
 273                                 $inbuf = $khistory[$khistpos];
 274                                 $pos = $lth = length $inbuf;
 275                         } else {
 276                                 beep();
 277                         }
 278                 } elsif ($r eq KEY_DOWN || $r eq "\016") {
 279                         if ($khistpos < @khistory - 1) {
 280                                 ++$khistpos;
 281                                 $inbuf = $khistory[$khistpos];
 282                                 $pos = $lth = length $inbuf;
 283                         } else {
 284                                 beep();
 285                         }
 286                 } elsif ($r eq KEY_PPAGE || $r eq "\032") {
 287                         if ($spos > 0) {
 288                                 my ($i, $l);
 289                                 for ($i = 0; $i <= $pagel && $spos >= 0; ) {
 290                                         $l = measure($shistory[$spos]);
 291                                         $i += $l;
 292                                         $spos-- if $i <= $pagel;
 293                                 }
 294                                 $spos = 0 if $spos < 0;
 295                                 show_screen();
 296                         } else {
 297                                 beep();
 298                         }
 299                 } elsif ($r eq KEY_NPAGE || $r eq "\026") {
 300                         if ($spos < @shistory - 1) {
 301                                 my ($i, $l);
 302                                 for ($i = 0; $i <= $pagel && $spos <= @shistory; ) {
 303                                         $l = measure($shistory[$spos]);
 304                                         $i += $l;
 305                                         $spos++ if $i <= $pagel;
 306                                 }
 307                                 $spos = @shistory if $spos >= @shistory - 1;
 308                                 show_screen();
 309                         } else {
 310                                 beep();
 311                         }
 312                 } elsif ($r eq KEY_LEFT || $r eq "\002") {
 313                         if ($pos > 0) {
 314                                 --$pos;
 315                         } else {
 316                                 beep();
 317                         }
 318                 } elsif ($r eq KEY_RIGHT || $r eq "\006") {
 319                         if ($pos < $lth) {
 320                                 ++$pos;
 321                         } else {
 322                                 beep();
 323                         }
 324                 } elsif ($r eq KEY_HOME || $r eq "\001") {
 325                         $pos = 0;
 326                 } elsif ($r eq KEY_END || $r eq "\005") {
 327                         $pos = $lth;
 328                 } elsif ($r eq KEY_BACKSPACE || $r eq "\010") {
 329                         if ($pos > 0) {
 330                                 my $a = substr($inbuf, 0, $pos-1);
 331                                 my $b = substr($inbuf, $pos) if $pos < $lth;
 332                                 $b = "" unless $b;
 333
 334                                 $inbuf = $a . $b;
 335                                 --$lth;
 336                                 --$pos;
 337                         } else {
 338                                 beep();
 339                         }
 340                 } elsif ($r eq KEY_DC || $r eq "\004") {
 341                         if ($pos < $lth) {
 342                                 my $a = substr($inbuf, 0, $pos);
 343                                 my $b = substr($inbuf, $pos+1) if $pos < $lth;
 344                                 $b = "" unless $b;
 345
 346                                 $inbuf = $a . $b;
 347                                 --$lth;
 348                         } else {
 349                                 beep();
 350                         }
 351                 } elsif ($r ge ' ' && $r le '~') {
 352                         # move the top screen back to the bottom if you type something
 353                         if ($spos < @shistory) {
 354                                 $spos = @shistory;
 355                                 show_screen();
 356                         }
 357
 358                         # insert the character into the keyboard buffer
 359                         if ($pos < $lth) {
 360                                 my $a = substr($inbuf, 0, $pos);
 361                                 my $b = substr($inbuf, $pos);
 362                                 $inbuf = $a . $r . $b;
 363                         } else {
 364                                 $inbuf .= $r;
 365                         }
 366                         $pos++;
 367                         $lth++;
 368                 } elsif ($r eq "\014" || $r eq "\022") {
 369                         #do_resize();
 370                         return;
 371                 } elsif ($r eq "\013") {
 372                         $inbuf = substr($inbuf, 0, $pos);
 373                         $lth = length $inbuf;
 374                 } else {
 375                         beep();
 376                 }
 377                 $bot->move(1, 0);
 378                 $bot->clrtobot();
 379                 $bot->addstr($inbuf);
 380         }
 381         $bot->move(1, $pos);
 382         $bot->refresh();
 383 }
 384
 385
 386 #
 387 # deal with args
 388 #
 389
 390 $call = uc shift @ARGV if @ARGV;
 391 $call = uc $myalias if !$call;
 392
 393 if ($call eq $mycall) {
 394         print "You cannot connect as your cluster callsign ($mycall)\n";
 395         exit(0);
 396 }
 397
 398 $conn = Msg->connect("$clusteraddr", $clusterport, \&rec_socket);
 399 if (! $conn) {
 400         if (-r "$data/offline") {
 401                 open IN, "$data/offline" or die;
 402                 while (<IN>) {
 403                         print $_;
 404                 }
 405                 close IN;
 406         } else {
 407                 print "Sorry, the cluster $mycall is currently off-line\n";
 408         }
 409         exit(0);
 410 }
 411
 412
 413 $SIG{'INT'} = \&sig_term;
 414 $SIG{'TERM'} = \&sig_term;
 415 #$SIG{'WINCH'} = \&do_resize;
 416 $SIG{'HUP'} = 'IGNORE';
 417
 418 do_initscr();
 419
 420 $SIG{__DIE__} = \&sig_term;
 421
 422 $conn->send_now("A$call|$connsort");
 423 $conn->send_now("I$call|set/page $maxshist");
 424 $conn->send_now("I$call|set/nobeep");
 425
 426 Msg->set_event_handler(\*STDIN, "read" => \&rec_stdin);
 427
 428 for (;;) {
 429         my $t;
 430         Msg->event_loop(1, 1);
 431         $top->refresh() if $top->is_wintouched;
 432         $bot->refresh();
 433         $t = time;
 434         if ($t > $lasttime) {
 435                 $lasttime = $t;
 436         }
 437 }
 438
 439 exit(0);