screen_away.pl

   1 use Irssi;
   2 use strict;
   3 use FileHandle;
   4
   5 use vars qw($VERSION %IRSSI);
   6
   7 $VERSION = "0.9.7.1";
   8 %IRSSI = (
   9     authors     => 'Andreas \'ads\' Scherbaum <ads@wars-nicht.de>',
  10     name        => 'screen_away',
  11     description => 'set (un)away, if screen is attached/detached',
  12     license     => 'GPL v2',
  13     url         => 'none',
  14 );
  15
  16 # screen_away irssi module
  17 #
  18 # written by Andreas 'ads' Scherbaum <ads@ufp.de>
  19 #
  20 # changes:
  21 #  07.02.2004 fix error with away mode
  22 #             thanks to Michael Schiansky for reporting and fixing this one
  23 #  07.08.2004 new function for changing nick on away
  24 #  24.08.2004 fixing bug where the away nick was not storedcorrectly
  25 #             thanks for Harald Wurpts for help debugging this one
  26 #  17.09.2004 rewrote init part to use $ENV{'STY'}
  27 #  05.12.2004 add patch for remember away state
  28 #             thanks to Jilles Tjoelker <jilles@stack.nl>
  29 #             change "chatnet" to "tag"
  30 #  18.05.2007 fix '-one' for SILC networks
  31 #
  32 #
  33 # usage:
  34 #
  35 # put this script into your autorun directory and/or load it with
  36 #  /SCRIPT LOAD <name>
  37 #
  38 # there are 5 settings available:
  39 #
  40 # /set screen_away_active ON/OFF/TOGGLE
  41 # /set screen_away_repeat <integer>
  42 # /set screen_away_message <string>
  43 # /set screen_away_window <string>
  44 # /set screen_away_nick <string>
  45 #
  46 # active means, that you will be only set away/unaway, if this
  47 #   flag is set, default is ON
  48 # repeat is the number of seconds, after the script will check the
  49 #   screen status again, default is 5 seconds
  50 # message is the away message sent to the server, default: not here ...
  51 # window is a window number or name, if set, the script will switch
  52 #   to this window, if it sets you away, default is '1'
  53 # nick is the new nick, if the script goes away
  54 #   will only be used it not empty
  55 #
  56 # normal you should be able to rename the script to something other
  57 # than 'screen_away' (as example, if you dont like the name) by simple
  58 # changing the 'name' parameter in the %IRSSI hash at the top of this script
  59
  60
  61 # variables
  62 my $timer_name = undef;
  63 my $away_status = 0;
  64 my %old_nicks = ();
  65 my %away = ();
  66
  67 # Register formats
  68 Irssi::theme_register(
  69 [
  70  'screen_away_crap',
  71  '{line_start}{hilight ' . $IRSSI{'name'} . ':} $0'
  72 ]);
  73
  74 # if we are running
  75 my $screen_away_used = 0;
  76
  77 # try to find out, if we are running in a screen
  78 # (see, if $ENV{STY} is set
  79 if (!defined($ENV{STY})) {
  80   # just return, we will never be called again
  81   Irssi::printformat(MSGLEVEL_CLIENTCRAP, 'screen_away_crap',
  82     "could not open status file for parent process (pid: " . getppid() . "): $!");
  83   return;
  84 }
  85
  86 my ($socket_name, $socket_path);
  87
  88 # search for socket
  89 # normal we could search the socket file, ... if we know the path
  90 # but so we have to call one time the screen executable
  91 # disable locale
  92 # the quotes around C force perl 5.005_03 to use the shell
  93 # thanks to Jilles Tjoelker <jilles@stack.nl> for pointing this out
  94 my $socket = `LC_ALL="C" screen -ls`;
  95
  96
  97
  98 my $running_in_screen = 0;
  99 # locale doesnt seems to be an problem (yet)
 100 if ($socket !~ /^No Sockets found/s) {
 101   # ok, should have only one socket
 102   $socket_name = $ENV{'STY'};
 103   $socket_path = $socket;
 104                     #1 Socket in /run/screen/S-jrunyon.
 105   $socket_path =~ s/^.*\d+ Sockets? in ([^\n]+)\.\s.+$/$1/s;
 106   if (length($socket_path) != length($socket)) {
 107     # only activate, if string length is different
 108     # (to make sure, we really got a dir name)
 109     $screen_away_used = 1;
 110   } else {
 111     Irssi::printformat(MSGLEVEL_CLIENTCRAP, 'screen_away_crap',
 112       "error reading screen informations from:");
 113     Irssi::printformat(MSGLEVEL_CLIENTCRAP, 'screen_away_crap',
 114       "$socket_path/$socket");
 115   }
 116 }
 117
 118 # last check
 119 if ($screen_away_used == 0) {
 120   # we will never be called again
 121   return;
 122 }
 123
 124 # build complete socket name
 125 $socket = $socket_path . "/" . $socket_name;
 126
 127 # register config variables
 128 Irssi::settings_add_bool('misc', $IRSSI{'name'} . '_active', 1);
 129 Irssi::settings_add_int('misc', $IRSSI{'name'} . '_repeat', 5);
 130 Irssi::settings_add_str('misc', $IRSSI{'name'} . '_message', "not here ...");
 131 Irssi::settings_add_str('misc', $IRSSI{'name'} . '_window', "1");
 132 Irssi::settings_add_str('misc', $IRSSI{'name'} . '_nick', "");
 133
 134 # init process
 135 screen_away();
 136
 137 # screen_away()
 138 #
 139 # check, set or reset the away status
 140 #
 141 # parameter:
 142 #   none
 143 # return:
 144 #   0 (OK)
 145 sub screen_away {
 146   my ($away, @screen, $screen);
 147
 148   # only run, if activated
 149   if (Irssi::settings_get_bool($IRSSI{'name'} . '_active') == 1) {
 150     if ($away_status == 0) {
 151       # display init message at first time
 152       Irssi::printformat(MSGLEVEL_CLIENTCRAP, 'screen_away_crap',
 153         "activating $IRSSI{'name'} (interval: " . Irssi::settings_get_int($IRSSI{'name'} . '_repeat') . " seconds)");
 154     }
 155     # get actual screen status
 156     my @screen = stat($socket);
 157     # 00100 is the mode for "user has execute permissions", see stat.h
 158     if (($screen[2] & 00100) == 0) {
 159       # no execute permissions, Detached
 160       $away = 1;
 161     } else {
 162       # execute permissions, Attached
 163       $away = 2;
 164     }
 165
 166     # check if status has changed
 167     if ($away == 1 and $away_status != 1) {
 168       # set away
 169       if (length(Irssi::settings_get_str($IRSSI{'name'} . '_window')) > 0) {
 170         # if length of window is greater then 0, make this window active
 171         Irssi::command('window goto ' . Irssi::settings_get_str($IRSSI{'name'} . '_window'));
 172       }
 173       Irssi::printformat(MSGLEVEL_CLIENTCRAP, 'screen_away_crap',
 174         "Set away");
 175       my $message = Irssi::settings_get_str($IRSSI{'name'} . '_message');
 176       if (length($message) == 0) {
 177         # we have to set a message or we wouldnt go away
 178         $message = "not here ...";
 179       }
 180       my ($server);
 181       foreach $server (Irssi::servers()) {
 182         if (!$server->{usermode_away}) {
 183           # user isnt yet away
 184           $away{$server->{'tag'}} = 0;
 185           $server->command("AWAY " . (($server->{chat_type} ne 'SILC') ? "-one " : "") . "$message") if (!$server->{usermode_away});
 186           if (length(Irssi::settings_get_str($IRSSI{'name'} . '_nick')) > 0) {
 187             # only change, if actual nick isnt already the away nick
 188             if (Irssi::settings_get_str($IRSSI{'name'} . '_nick') ne $server->{nick}) {
 189               # keep old nick
 190               $old_nicks{$server->{'tag'}} = $server->{nick};
 191               # set new nick
 192               $server->command("NICK " . Irssi::settings_get_str($IRSSI{'name'} . '_nick'));
 193             }
 194           }
 195         } else {
 196           # user is already away, remember this
 197           $away{$server->{'tag'}} = 1;
 198         }
 199       }
 200       $away_status = $away;
 201     } elsif ($away == 2 and $away_status != 2) {
 202       # unset away
 203       Irssi::printformat(MSGLEVEL_CLIENTCRAP, 'screen_away_crap',
 204         "Reset away");
 205       my ($server);
 206       foreach $server (Irssi::servers()) {
 207         if ($away{$server->{'tag'}} == 1) {
 208           # user was already away, dont reset away
 209           $away{$server->{'tag'}} = 0;
 210           next;
 211         }
 212         $server->command("AWAY" . (($server->{chat_type} ne 'SILC') ? " -one" : "")) if ($server->{usermode_away});
 213         if (defined($old_nicks{$server->{'tag'}}) and length($old_nicks{$server->{'tag'}}) > 0) {
 214           # set old nick
 215           $server->command("NICK " . $old_nicks{$server->{'tag'}});
 216           $old_nicks{$server->{'tag'}} = "";
 217         }
 218       }
 219       $away_status = $away;
 220     }
 221   }
 222   # but everytimes install a new timer
 223   register_screen_away_timer();
 224   return 0;
 225 }
 226
 227 # register_screen_away_timer()
 228 #
 229 # remove old timer and install a new one
 230 #
 231 # parameter:
 232 #   none
 233 # return:
 234 #   none
 235 sub register_screen_away_timer {
 236   if (defined($timer_name)) {
 237     # remove old timer, if defined
 238     Irssi::timeout_remove($timer_name);
 239   }
 240   # add new timer with new timeout (maybe the timeout has been changed)
 241   $timer_name = Irssi::timeout_add(Irssi::settings_get_int($IRSSI{'name'} . '_repeat') * 1000, 'screen_away', '');
 242 }
 243