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 DXUtil;
  32 use IO::File;
  33 use Curses;
  34
  35 use Carp qw{cluck};
  36
  37 use Console;
  38
  39 #
  40 # initialisation
  41 #
  42
  43 $call = "";                     # the callsign being used
  44 $conn = 0;                      # the connection object for the cluster
  45 $lasttime = time;               # lasttime something happened on the interface
  46
  47 $connsort = "local";
  48 @khistory = ();
  49 @shistory = ();
  50 $khistpos = 0;
  51 $spos = $pos = $lth = 0;
  52 $inbuf = "";
  53
  54 # do the screen initialisation
  55 sub do_initscr
  56 {
  57         $scr = new Curses;
  58         raw();
  59         noecho();
  60         $has_colors = has_colors();
  61
  62         if ($has_colors) {
  63                 start_color();
  64                 init_pair(0, $foreground, $background);
  65                 init_pair(1, COLOR_RED, $background);
  66                 init_pair(2, COLOR_YELLOW, $background);
  67                 init_pair(3, COLOR_GREEN, $background);
  68                 init_pair(4, COLOR_CYAN, $background);
  69                 init_pair(5, COLOR_BLUE, $background);
  70                 init_pair(6, COLOR_MAGENTA, $background);
  71         }
  72
  73         $top = $scr->subwin(LINES()-4, COLS, 0, 0);
  74         $top->intrflush(0);
  75         $top->scrollok(1);
  76         $scr->addstr(LINES()-4, 0, '-' x COLS);
  77         $bot = $scr->subwin(3, COLS, LINES()-3, 0);
  78         $bot->intrflush(0);
  79         $bot->scrollok(1);
  80         $bot->keypad(1);
  81         $bot->move(1,0);
  82         $scr->refresh();
  83
  84         $pagel = LINES()-4;
  85         $mycallcolor = COLOR_PAIR(1) unless $mycallcolor;
  86 }
  87
  88 sub do_resize
  89 {
  90         undef $scr;
  91         do_initscr();
  92 }
  93
  94 # cease communications
  95 sub cease
  96 {
  97         my $sendz = shift;
  98         if ($conn && $sendz) {
  99                 $conn->send_now("Z$call|bye...\n");
 100         }
 101         endwin();
 102         dbgclose();
 103         print @_ if @_;
 104         exit(0);
 105 }
 106
 107 # terminate program from signal
 108 sub sig_term
 109 {
 110         cease(1, @_);
 111 }
 112
 113 # determine the colour of the line
 114 sub setattr
 115 {
 116         if ($has_colors) {
 117                 foreach my $ref (@colors) {
 118                         if ($_[0] =~ m{$$ref[0]}) {
 119                                 $top->attrset($$ref[1]);
 120                                 last;
 121                         }
 122                 }
 123         }
 124 }
 125
 126 # measure the no of screen lines a line will take
 127 sub measure
 128 {
 129         my $line = shift;
 130         return 0 unless $line;
 131
 132         my $l = length $line;
 133         my $lines = int ($l / COLS());
 134         $lines++ if $l / COLS() > $lines;
 135         return $lines;
 136 }
 137
 138 # display the top screen
 139 sub show_screen
 140 {
 141         if ($spos == @shistory - 1) {
 142
 143                 # if we really are scrolling thru at the end of the history
 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     my $time = ztime(time);
 181         my $str =  "-" . $time . '-' x (COLS() - (length($call) + length($add) + length($time) + 1));
 182         $scr->addstr(LINES()-4, 0, $str);
 183
 184         $scr->attrset($mycallcolor) if $has_colors;
 185         $scr->addstr("$call");
 186         $scr->attrset(COLOR_PAIR(0)) if $has_colors;
 187     $scr->addstr($add);
 188         $scr->refresh();
 189 #       $top->refresh();
 190 }
 191
 192 # add a line to the end of the top screen
 193 sub addtotop
 194 {
 195         while (@_) {
 196                 my $inbuf = shift;
 197                 push @shistory, $inbuf;
 198                 shift @shistory if @shistory > $maxshist;
 199         }
 200         show_screen();
 201 }
 202
 203 # handle incoming messages
 204 sub rec_socket
 205 {
 206         my ($con, $msg, $err) = @_;
 207         if (defined $err && $err) {
 208                 cease(1);
 209         }
 210         if (defined $msg) {
 211                 my ($sort, $call, $line) = $msg =~ /^(\w)(\S+)\|(.*)$/;
 212
 213                 if ($sort && $sort eq 'D') {
 214                         addtotop($line);
 215                 } elsif ($sort && $sort eq 'Z') { # end, disconnect, go, away .....
 216                         cease(0);
 217                 }
 218         }
 219         $top->refresh();
 220         $lasttime = time;
 221 }
 222
 223 sub rec_stdin
 224 {
 225         my ($fh) = @_;
 226
 227         $r = $bot->getch();
 228
 229         #  my $prbuf;
 230         #  $prbuf = $buf;
 231         #  $prbuf =~ s/\r/\\r/;
 232         #  $prbuf =~ s/\n/\\n/;
 233         #  print "sys: $r ($prbuf)\n";
 234         if (defined $r) {
 235
 236                 if ($r eq KEY_ENTER || $r eq "\n" || $r eq "\r") {
 237
 238                         # save the lines
 239                         if ($inbuf) {
 240                                 # check for a pling and do a search back for a command
 241                                 if ($inbuf =~ /^!/o) {
 242                                         my $i;
 243                                         $inbuf =~ s/^!//o;
 244                                         for ($i = $#khistory; $i >= 0; $i--) {
 245                                                 if ($khistory[$i] =~ /^$inbuf/) {
 246                                                         $inbuf = $khistory[$i];
 247                                                         last;
 248                                                 }
 249                                         }
 250                                         if ($i < 0) {
 251                                                 beep();
 252                                                 return;
 253                                         }
 254                                 }
 255                                 push @khistory, $inbuf if $inbuf;
 256                                 shift @khistory if @khistory > $maxkhist;
 257                                 $khistpos = @khistory;
 258                                 $bot->move(0,0);
 259                                 $bot->clrtoeol();
 260                                 $bot->addstr(substr($inbuf, 0, COLS));
 261                         }
 262
 263                         # add it to the monitor window
 264                         unless ($spos == @shistory) {
 265                                 $spos = @shistory;
 266                                 show_screen();
 267                         };
 268                         addtotop($inbuf) if $inbuf;
 269
 270                         # send it to the cluster
 271                         $inbuf = " " unless $inbuf;
 272                         $conn->send_later("I$call|$inbuf");
 273                         $inbuf = "";
 274                         $pos = $lth = 0;
 275                 } elsif ($r eq KEY_UP || $r eq "\020") {
 276                         if ($khistpos > 0) {
 277                                 --$khistpos;
 278                                 $inbuf = $khistory[$khistpos];
 279                                 $pos = $lth = length $inbuf;
 280                         } else {
 281                                 beep();
 282                         }
 283                 } elsif ($r eq KEY_DOWN || $r eq "\016") {
 284                         if ($khistpos < @khistory - 1) {
 285                                 ++$khistpos;
 286                                 $inbuf = $khistory[$khistpos];
 287                                 $pos = $lth = length $inbuf;
 288                         } else {
 289                                 beep();
 290                         }
 291                 } elsif ($r eq KEY_PPAGE || $r eq "\032") {
 292                         if ($spos > 0) {
 293                                 my ($i, $l);
 294                                 for ($i = 0; $i <= $pagel && $spos >= 0; ) {
 295                                         $l = measure($shistory[$spos]);
 296                                         $i += $l;
 297                                         $spos-- if $i <= $pagel;
 298                                 }
 299                                 $spos = 0 if $spos < 0;
 300                                 show_screen();
 301                         } else {
 302                                 beep();
 303                         }
 304                 } elsif ($r eq KEY_NPAGE || $r eq "\026") {
 305                         if ($spos < @shistory - 1) {
 306                                 my ($i, $l);
 307                                 for ($i = 0; $i <= $pagel && $spos <= @shistory; ) {
 308                                         $l = measure($shistory[$spos]);
 309                                         $i += $l;
 310                                         $spos++ if $i <= $pagel;
 311                                 }
 312                                 $spos = @shistory if $spos >= @shistory - 1;
 313                                 show_screen();
 314                         } else {
 315                                 beep();
 316                         }
 317                 } elsif ($r eq KEY_LEFT || $r eq "\002") {
 318                         if ($pos > 0) {
 319                                 --$pos;
 320                         } else {
 321                                 beep();
 322                         }
 323                 } elsif ($r eq KEY_RIGHT || $r eq "\006") {
 324                         if ($pos < $lth) {
 325                                 ++$pos;
 326                         } else {
 327                                 beep();
 328                         }
 329                 } elsif ($r eq KEY_HOME || $r eq "\001") {
 330                         $pos = 0;
 331                 } elsif ($r eq KEY_END || $r eq "\005") {
 332                         $pos = $lth;
 333                 } elsif ($r eq KEY_BACKSPACE || $r eq "\010") {
 334                         if ($pos > 0) {
 335                                 my $a = substr($inbuf, 0, $pos-1);
 336                                 my $b = substr($inbuf, $pos) if $pos < $lth;
 337                                 $b = "" unless $b;
 338
 339                                 $inbuf = $a . $b;
 340                                 --$lth;
 341                                 --$pos;
 342                         } else {
 343                                 beep();
 344                         }
 345                 } elsif ($r eq KEY_DC || $r eq "\004") {
 346                         if ($pos < $lth) {
 347                                 my $a = substr($inbuf, 0, $pos);
 348                                 my $b = substr($inbuf, $pos+1) if $pos < $lth;
 349                                 $b = "" unless $b;
 350
 351                                 $inbuf = $a . $b;
 352                                 --$lth;
 353                         } else {
 354                                 beep();
 355                         }
 356                 } elsif ($r ge ' ' && $r le '~') {
 357                         # move the top screen back to the bottom if you type something
 358                         if ($spos < @shistory) {
 359                                 $spos = @shistory;
 360                                 show_screen();
 361                         }
 362
 363                         # insert the character into the keyboard buffer
 364                         if ($pos < $lth) {
 365                                 my $a = substr($inbuf, 0, $pos);
 366                                 my $b = substr($inbuf, $pos);
 367                                 $inbuf = $a . $r . $b;
 368                         } else {
 369                                 $inbuf .= $r;
 370                         }
 371                         $pos++;
 372                         $lth++;
 373                 } elsif ($r eq "\014" || $r eq "\022") {
 374                         #do_resize();
 375                         return;
 376                 } elsif ($r eq "\013") {
 377                         $inbuf = substr($inbuf, 0, $pos);
 378                         $lth = length $inbuf;
 379                 } else {
 380                         beep();
 381                 }
 382                 $bot->move(1, 0);
 383                 $bot->clrtobot();
 384                 $bot->addstr($inbuf);
 385         }
 386         $bot->move(1, $pos);
 387         $bot->refresh();
 388 }
 389
 390
 391 #
 392 # deal with args
 393 #
 394
 395 $call = uc shift @ARGV if @ARGV;
 396 $call = uc $myalias if !$call;
 397
 398 if ($call eq $mycall) {
 399         print "You cannot connect as your cluster callsign ($mycall)\n";
 400         exit(0);
 401 }
 402
 403 $conn = Msg->connect("$clusteraddr", $clusterport, \&rec_socket);
 404 if (! $conn) {
 405         if (-r "$data/offline") {
 406                 open IN, "$data/offline" or die;
 407                 while (<IN>) {
 408                         print $_;
 409                 }
 410                 close IN;
 411         } else {
 412                 print "Sorry, the cluster $mycall is currently off-line\n";
 413         }
 414         exit(0);
 415 }
 416
 417
 418 $SIG{'INT'} = \&sig_term;
 419 $SIG{'TERM'} = \&sig_term;
 420 #$SIG{'WINCH'} = \&do_resize;
 421 $SIG{'HUP'} = 'IGNORE';
 422
 423 do_initscr();
 424
 425 $SIG{__DIE__} = \&sig_term;
 426
 427 $conn->send_now("A$call|$connsort");
 428 $conn->send_now("I$call|set/page $maxshist");
 429 $conn->send_now("I$call|set/nobeep");
 430
 431 Msg->set_event_handler(\*STDIN, "read" => \&rec_stdin);
 432
 433 for (;;) {
 434         my $t;
 435         Msg->event_loop(1, 1);
 436         $t = time;
 437         if ($t > $lasttime) {
 438                 show_screen();
 439                 $lasttime = $t;
 440         }
 441         $top->refresh() if $top->is_wintouched;
 442         $bot->refresh();
 443 }
 444
 445 exit(0);