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 }
  85
  86 sub do_resize
  87 {
  88         undef $scr;
  89         do_initscr();
  90 }
  91
  92 # cease communications
  93 sub cease
  94 {
  95         my $sendz = shift;
  96         if ($conn && $sendz) {
  97                 $conn->send_now("Z$call|bye...\n");
  98         }
  99         endwin();
 100         dbgclose();
 101         print @_ if @_;
 102         exit(0);
 103 }
 104
 105 # terminate program from signal
 106 sub sig_term
 107 {
 108         cease(1, @_);
 109 }
 110
 111 # determine the colour of the line
 112 sub setattr
 113 {
 114         if ($has_colors) {
 115                 foreach my $ref (@colors) {
 116                         if ($_[0] =~ m{$$ref[0]}) {
 117                                 $top->attrset($$ref[1]);
 118                                 last;
 119                         }
 120                 }
 121         }
 122 }
 123
 124 # measure the no of screen lines a line will take
 125 sub measure
 126 {
 127         my $line = shift;
 128         return 0 unless $line;
 129
 130         my $l = length $line;
 131         my $lines = int ($l / COLS());
 132         $lines++ if $l / COLS() > $lines;
 133         return $lines;
 134 }
 135
 136 # display the top screen
 137 sub show_screen
 138 {
 139         if ($spos == @shistory - 1) {
 140
 141                 # if we really are scrolling thru at the end of the history
 142                 my $line = $shistory[-1];
 143                 $top->addstr("\n") if $spos > 0;
 144                 setattr($line);
 145                 $top->addstr($line);
 146                 $top->attrset(COLOR_PAIR(0)) if $has_colors;
 147                 $spos = @shistory;
 148
 149         } else {
 150
 151                 # anywhere else
 152                 my ($i, $l);
 153                 my $p = $spos-1;
 154                 for ($i = 0; $i <= $pagel && $p >= 0; ) {
 155                         $l = measure($shistory[$p]);
 156                         $i += $l;
 157                         $p-- if $i < $pagel;
 158                 }
 159                 $p = 0 if $p < 0;
 160
 161                 $top->move(0, 0);
 162                 $top->attrset(COLOR_PAIR(0)) if $has_colors;
 163                 $top->clrtobot();
 164                 for ($i = 0; $i <= $pagel && $p < @shistory; $p++) {
 165                         my $line = $shistory[$p];
 166                         my $lines = measure($line);
 167                         last if $i + $lines > $pagel;
 168                         $top->move($i, 0);
 169                         setattr($line);
 170                         $top->addstr($line);
 171                         $top->attrset(COLOR_PAIR(0)) if $has_colors;
 172                         $i += $lines;
 173                 }
 174                 $spos = $p;
 175         }
 176         $top->refresh();
 177 }
 178
 179 # add a line to the end of the top screen
 180 sub addtotop
 181 {
 182         my $inbuf = shift;
 183         push @shistory, $inbuf;
 184         shift @shistory if @shistory > $maxshist;
 185         show_screen();
 186 }
 187
 188 # handle incoming messages
 189 sub rec_socket
 190 {
 191         my ($con, $msg, $err) = @_;
 192         if (defined $err && $err) {
 193                 cease(1);
 194         }
 195         if (defined $msg) {
 196                 my ($sort, $call, $line) = $msg =~ /^(\w)(\S+)\|(.*)$/;
 197
 198                 if ($sort && $sort eq 'D') {
 199                         addtotop($line);
 200                 } elsif ($sort && $sort eq 'Z') { # end, disconnect, go, away .....
 201                         cease(0);
 202                 }
 203         }
 204         $top->refresh();
 205         $lasttime = time;
 206 }
 207
 208 sub rec_stdin
 209 {
 210         my ($fh) = @_;
 211
 212         $r = $bot->getch();
 213
 214         #  my $prbuf;
 215         #  $prbuf = $buf;
 216         #  $prbuf =~ s/\r/\\r/;
 217         #  $prbuf =~ s/\n/\\n/;
 218         #  print "sys: $r ($prbuf)\n";
 219         if (defined $r) {
 220
 221                 if ($r eq KEY_ENTER || $r eq "\n" || $r eq "\r") {
 222
 223                         # save the lines
 224                         if ($inbuf) {
 225                                 # check for a pling and do a search back for a command
 226                                 if ($inbuf =~ /^!/o) {
 227                                         my $i;
 228                                         $inbuf =~ s/^!//o;
 229                                         for ($i = $#khistory; $i >= 0; $i--) {
 230                                                 if ($khistory[$i] =~ /^$inbuf/) {
 231                                                         $inbuf = $khistory[$i];
 232                                                         last;
 233                                                 }
 234                                         }
 235                                         if ($i < 0) {
 236                                                 beep();
 237                                                 return;
 238                                         }
 239                                 }
 240                                 push @khistory, $inbuf if $inbuf;
 241                                 shift @khistory if @khistory > $maxkhist;
 242                                 $khistpos = @khistory;
 243                                 $bot->move(0,0);
 244                                 $bot->clrtoeol();
 245                                 $bot->addstr(substr($inbuf, 0, COLS));
 246                         }
 247
 248                         # add it to the monitor window
 249                         addtotop($inbuf) if $inbuf;
 250
 251                         # send it to the cluster
 252                         $inbuf = " " unless $inbuf;
 253                         $conn->send_later("I$call|$inbuf");
 254                         $inbuf = "";
 255                         $pos = $lth = 0;
 256                 } elsif ($r eq KEY_UP || $r eq "\020") {
 257                         if ($khistpos > 0) {
 258                                 --$khistpos;
 259                                 $inbuf = $khistory[$khistpos];
 260                                 $pos = $lth = length $inbuf;
 261                         } else {
 262                                 beep();
 263                         }
 264                 } elsif ($r eq KEY_DOWN || $r eq "\016") {
 265                         if ($khistpos < @khistory - 1) {
 266                                 ++$khistpos;
 267                                 $inbuf = $khistory[$khistpos];
 268                                 $pos = $lth = length $inbuf;
 269                         } else {
 270                                 beep();
 271                         }
 272                 } elsif ($r eq KEY_PPAGE || $r eq "\032") {
 273                         if ($spos > 0) {
 274                                 my ($i, $l);
 275                                 for ($i = 0; $i <= $pagel && $spos >= 0; ) {
 276                                         $l = measure($shistory[$spos]);
 277                                         $i += $l;
 278                                         $spos-- if $i <= $pagel;
 279                                 }
 280                                 $spos = 0 if $spos < 0;
 281                                 show_screen();
 282                         } else {
 283                                 beep();
 284                         }
 285                 } elsif ($r eq KEY_NPAGE || $r eq "\026") {
 286                         if ($spos < @shistory - 1) {
 287                                 my ($i, $l);
 288                                 for ($i = 0; $i <= $pagel && $spos <= @shistory; ) {
 289                                         $l = measure($shistory[$spos]);
 290                                         $i += $l;
 291                                         $spos++ if $i <= $pagel;
 292                                 }
 293                                 $spos = @shistory if $spos > @shistory;
 294                                 show_screen();
 295                         } else {
 296                                 beep();
 297                         }
 298                 } elsif ($r eq KEY_LEFT || $r eq "\002") {
 299                         if ($pos > 0) {
 300                                 --$pos;
 301                         } else {
 302                                 beep();
 303                         }
 304                 } elsif ($r eq KEY_RIGHT || $r eq "\006") {
 305                         if ($pos < $lth) {
 306                                 ++$pos;
 307                         } else {
 308                                 beep();
 309                         }
 310                 } elsif ($r eq KEY_HOME || $r eq "\001") {
 311                         $pos = 0;
 312                 } elsif ($r eq KEY_END || $r eq "\005") {
 313                         $pos = $lth;
 314                 } elsif ($r eq KEY_BACKSPACE || $r eq "\010") {
 315                         if ($pos > 0) {
 316                                 my $a = substr($inbuf, 0, $pos-1);
 317                                 my $b = substr($inbuf, $pos) if $pos < $lth;
 318                                 $b = "" unless $b;
 319
 320                                 $inbuf = $a . $b;
 321                                 --$lth;
 322                                 --$pos;
 323                         } else {
 324                                 beep();
 325                         }
 326                 } elsif ($r eq KEY_DC || $r eq "\004") {
 327                         if ($pos < $lth) {
 328                                 my $a = substr($inbuf, 0, $pos);
 329                                 my $b = substr($inbuf, $pos+1) if $pos < $lth;
 330                                 $b = "" unless $b;
 331
 332                                 $inbuf = $a . $b;
 333                                 --$lth;
 334                         } else {
 335                                 beep();
 336                         }
 337                 } elsif ($r ge ' ' && $r le '~') {
 338                         # move the top screen back to the bottom if you type something
 339                         if ($spos < @shistory - 1) {
 340                                 $spos = @shistory;
 341                                 show_screen();
 342                         }
 343
 344                         # insert the character into the keyboard buffer
 345                         if ($pos < $lth) {
 346                                 my $a = substr($inbuf, 0, $pos);
 347                                 my $b = substr($inbuf, $pos);
 348                                 $inbuf = $a . $r . $b;
 349                         } else {
 350                                 $inbuf .= $r;
 351                         }
 352                         $pos++;
 353                         $lth++;
 354                 } elsif ($r eq "\014" || $r eq "\022") {
 355                         #do_resize();
 356                         return;
 357                 } elsif ($r eq "\013") {
 358                         $inbuf = substr($inbuf, 0, $pos);
 359                         $lth = length $inbuf;
 360                 } else {
 361                         beep();
 362                 }
 363                 $bot->move(1, 0);
 364                 $bot->clrtobot();
 365                 $bot->addstr($inbuf);
 366         }
 367         $bot->move(1, $pos);
 368         $bot->refresh();
 369 }
 370
 371
 372 #
 373 # deal with args
 374 #
 375
 376 $call = uc shift @ARGV if @ARGV;
 377 $call = uc $myalias if !$call;
 378
 379 if ($call eq $mycall) {
 380         print "You cannot connect as your cluster callsign ($mycall)\n";
 381         exit(0);
 382 }
 383
 384 $conn = Msg->connect("$clusteraddr", $clusterport, \&rec_socket);
 385 if (! $conn) {
 386         if (-r "$data/offline") {
 387                 open IN, "$data/offline" or die;
 388                 while (<IN>) {
 389                         print $_;
 390                 }
 391                 close IN;
 392         } else {
 393                 print "Sorry, the cluster $mycall is currently off-line\n";
 394         }
 395         exit(0);
 396 }
 397
 398
 399 $SIG{'INT'} = \&sig_term;
 400 $SIG{'TERM'} = \&sig_term;
 401 #$SIG{'WINCH'} = \&do_resize;
 402 $SIG{'HUP'} = 'IGNORE';
 403
 404 do_initscr();
 405
 406 $SIG{__DIE__} = \&sig_term;
 407
 408 $conn->send_now("A$call|$connsort");
 409 $conn->send_now("I$call|set/page $maxshist");
 410 $conn->send_now("I$call|set/nobeep");
 411
 412 Msg->set_event_handler(\*STDIN, "read" => \&rec_stdin);
 413
 414 for (;;) {
 415         my $t;
 416         Msg->event_loop(1, 0.010);
 417         $top->refresh() if $top->is_wintouched;
 418         $bot->refresh();
 419         $t = time;
 420         if ($t > $lasttime) {
 421                 $lasttime = $t;
 422         }
 423 }
 424
 425 exit(0);