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 # cease communications
  54 sub cease
  55 {
  56         my $sendz = shift;
  57         if ($conn && $sendz) {
  58                 $conn->send_now("Z$call|bye...\n");
  59         }
  60         endwin();
  61         dbgclose();
  62         print @_ if @_;
  63         exit(0);
  64 }
  65
  66 # terminate program from signal
  67 sub sig_term
  68 {
  69         cease(1, @_);
  70 }
  71
  72 # determine the colour of the line
  73 sub setattr
  74 {
  75         if ($has_colors) {
  76                 foreach my $ref (@colors) {
  77                         if ($_[0] =~ m{$$ref[0]}) {
  78                                 $top->attrset($$ref[1]);
  79                                 last;
  80                         }
  81                 }
  82         }
  83 }
  84
  85 # display the top screen
  86 sub show_screen
  87 {
  88         if ($spos == @shistory - 1) {
  89
  90                 # if we really are scrolling thru at the end of the history
  91                 my $line = $shistory[-1];
  92                 $top->addstr("\n") if $spos > 0;
  93                 setattr($line);
  94                 $top->addstr($line);
  95                 $top->attrset(COLOR_PAIR(0)) if $has_colors;
  96                 $spos = @shistory;
  97
  98         } else {
  99
 100                 # anywhere else
 101                 my $p = $spos - $pages;
 102                 my $i;
 103                 $p = 0 if $p < 0;
 104
 105                 $top->move(0, 0);
 106                 $top->attrset(COLOR_PAIR(0)) if $has_colors;
 107                 $top->clrtobot();
 108                 for ($i = 0; $i < $pages && $p < @shistory; $i++, $p++) {
 109                         my $line = $shistory[$p];
 110                         $line = substr($line, 0, COLS()) if length $line > COLS();
 111                         $top->move($i, 0);
 112                         setattr($line);
 113                         $top->addstr($line);
 114                         $top->attrset(COLOR_PAIR(0)) if $has_colors;
 115                 }
 116                 $spos = $p;
 117         }
 118         $top->refresh();
 119 }
 120
 121 # handle incoming messages
 122 sub rec_socket
 123 {
 124         my ($con, $msg, $err) = @_;
 125         if (defined $err && $err) {
 126                 cease(1);
 127         }
 128         if (defined $msg) {
 129                 my ($sort, $call, $line) = $msg =~ /^(\w)(\S+)\|(.*)$/;
 130
 131                 if ($sort eq 'D') {
 132                         push @shistory, $line;
 133                         shift @shistory if @shistory > $maxshist;
 134 #                       $spos = @shistory if $spos >= @shistory - 1;
 135                         show_screen();
 136                 } elsif ($sort eq 'Z') { # end, disconnect, go, away .....
 137                         cease(0);
 138                 }
 139         }
 140         $top->refresh();
 141         $lasttime = time;
 142 }
 143
 144 sub rec_stdin
 145 {
 146         my ($fh) = @_;
 147
 148         $r = $bot->getch();
 149
 150         #  my $prbuf;
 151         #  $prbuf = $buf;
 152         #  $prbuf =~ s/\r/\\r/;
 153         #  $prbuf =~ s/\n/\\n/;
 154         #  print "sys: $r ($prbuf)\n";
 155         if (defined $r) {
 156                 if ($r eq KEY_ENTER || $r eq "\n" || $r eq "\r") {
 157
 158                         # save the lines
 159                         if ($inbuf) {
 160                                 push @khistory, $inbuf if $inbuf;
 161                                 shift @khistory if @khistory > $maxkhist;
 162                                 $khistpos = @khistory;
 163                                 $bot->move(0,0);
 164                                 $bot->clrtoeol();
 165                                 $bot->addstr(substr($inbuf, 0, COLS));
 166                         }
 167
 168                         # send it to the cluster
 169                         $inbuf = " " unless $inbuf;
 170                         $conn->send_later("I$call|$inbuf");
 171                         $inbuf = "";
 172                         $pos = $lth = 0;
 173                 } elsif ($r eq KEY_UP || $r eq "\020") {
 174                         if ($khistpos > 0) {
 175                                 --$khistpos;
 176                                 $inbuf = $khistory[$khistpos];
 177                                 $pos = $lth = length $inbuf;
 178                         } else {
 179                                 beep();
 180                         }
 181                 } elsif ($r eq KEY_DOWN || $r eq "\016") {
 182                         if ($khistpos < @khistory - 1) {
 183                                 ++$khistpos;
 184                                 $inbuf = $khistory[$khistpos];
 185                                 $pos = $lth = length $inbuf;
 186                         } else {
 187                                 beep();
 188                         }
 189                 } elsif ($r eq KEY_PPAGE || $r eq "\026") {
 190                         if ($spos > 0) {
 191                                 $spos -= $pages;
 192                                 $spos = 0 if $spos < 0;
 193                                 show_screen();
 194                         } else {
 195                                 beep();
 196                         }
 197                 } elsif ($r eq KEY_NPAGE || $r eq "\032") {
 198                         if ($spos < @shistory - 1) {
 199                                 $spos += $pages;
 200                                 $spos = @shistory if $spos > @shistory;
 201                                 show_screen();
 202                         } else {
 203                                 beep();
 204                         }
 205                 } elsif ($r eq KEY_LEFT || $r eq "\002") {
 206                         if ($pos > 0) {
 207                                 --$pos;
 208                         } else {
 209                                 beep();
 210                         }
 211                 } elsif ($r eq KEY_RIGHT || $r eq "\006") {
 212                         if ($pos < $lth) {
 213                                 ++$pos;
 214                         } else {
 215                                 beep();
 216                         }
 217                 } elsif ($r eq KEY_HOME || $r eq "\001") {
 218                         $pos = 0;
 219                 } elsif ($r eq KEY_BACKSPACE || $r eq "\010") {
 220                         if ($pos > 0) {
 221                                 my $a = substr($inbuf, 0, $pos-1);
 222                                 my $b = substr($inbuf, $pos) if $pos < $lth;
 223                                 $b = "" unless $b;
 224
 225                                 $inbuf = $a . $b;
 226                                 --$lth;
 227                                 --$pos;
 228                         } else {
 229                                 beep();
 230                         }
 231                 } elsif ($r eq KEY_DC || $r eq "\004") {
 232                         if ($pos < $lth) {
 233                                 my $a = substr($inbuf, 0, $pos);
 234                                 my $b = substr($inbuf, $pos+1) if $pos < $lth;
 235                                 $b = "" unless $b;
 236
 237                                 $inbuf = $a . $b;
 238                                 --$lth;
 239                         } else {
 240                                 beep();
 241                         }
 242                 } elsif ($r ge ' ' && $r le '~') {
 243                         if ($pos < $lth) {
 244                                 my $a = substr($inbuf, 0, $pos);
 245                                 my $b = substr($inbuf, $pos);
 246                                 $inbuf = $a . $r . $b;
 247                         } else {
 248                                 $inbuf .= $r;
 249                         }
 250                         $pos++;
 251                         $lth++;
 252                 } elsif ($r eq "\014" || $r eq "\022") {
 253                         $scr->touchwin();
 254                         $scr->refresh();
 255                 } elsif ($r eq "\013") {
 256                         $inbuf = "";
 257                         $pos = $lth = 0;
 258                 } else {
 259                         beep();
 260                 }
 261                 $bot->move(1, 0);
 262                 $bot->clrtobot();
 263                 $bot->addstr($inbuf);
 264         }
 265         $bot->move(1, $pos);
 266         $bot->refresh();
 267 }
 268
 269
 270 #
 271 # deal with args
 272 #
 273
 274 $call = uc shift @ARGV if @ARGV;
 275 $call = uc $myalias if !$call;
 276
 277 if ($call eq $mycall) {
 278         print "You cannot connect as your cluster callsign ($mycall)\n";
 279         exit(0);
 280 }
 281
 282 $conn = Msg->connect("$clusteraddr", $clusterport, \&rec_socket);
 283 if (! $conn) {
 284         if (-r "$data/offline") {
 285                 open IN, "$data/offline" or die;
 286                 while (<IN>) {
 287                         print $_;
 288                 }
 289                 close IN;
 290         } else {
 291                 print "Sorry, the cluster $mycall is currently off-line\n";
 292         }
 293         exit(0);
 294 }
 295
 296
 297 $SIG{'INT'} = \&sig_term;
 298 $SIG{'TERM'} = \&sig_term;
 299 $SIG{'HUP'} = 'IGNORE';
 300
 301 $scr = new Curses;
 302 raw();
 303 noecho();
 304 $has_colors = has_colors();
 305
 306 if ($has_colors) {
 307         start_color();
 308         init_pair(0, $foreground, $background);
 309         init_pair(1, COLOR_RED, $background);
 310         init_pair(2, COLOR_YELLOW, $background);
 311         init_pair(3, COLOR_GREEN, $background);
 312         init_pair(4, COLOR_CYAN, $background);
 313         init_pair(5, COLOR_BLUE, $background);
 314         init_pair(6, COLOR_MAGENTA, $background);
 315 }
 316
 317 $top = $scr->subwin(LINES()-4, COLS, 0, 0);
 318 $top->intrflush(0);
 319 $top->scrollok(1);
 320 $scr->addstr(LINES()-4, 0, '-' x COLS);
 321 $bot = $scr->subwin(3, COLS, LINES()-3, 0);
 322 $bot->intrflush(0);
 323 $bot->scrollok(1);
 324 $bot->keypad(1);
 325 $bot->move(1,0);
 326 $scr->refresh();
 327
 328 $SIG{__DIE__} = \&sig_term;
 329
 330 $pages = LINES()-4;
 331
 332 $conn->send_now("A$call|$connsort");
 333 $conn->send_now("I$call|set/page $maxshist");
 334 $conn->send_now("I$call|set/nobeep");
 335
 336 Msg->set_event_handler(\*STDIN, "read" => \&rec_stdin);
 337
 338 for (;;) {
 339         my $t;
 340         Msg->event_loop(1, 0.010);
 341         $top->refresh() if $top->is_wintouched;
 342         $bot->refresh();
 343         $t = time;
 344         if ($t > $lasttime) {
 345                 $lasttime = $t;
 346         }
 347 }
 348
 349 exit(0);