mirror of https://github.com/pragma-/pbot.git
94 lines
2.2 KiB
Perl
94 lines
2.2 KiB
Perl
# File: FactoidModuleLauncher.pm
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# Author: pragma_
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#
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# Purpose: Handles forking and execution of module processes
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package PBot::FactoidModuleLauncher;
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use warnings;
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use strict;
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use vars qw($VERSION);
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$VERSION = $PBot::PBot::VERSION;
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use POSIX qw(WNOHANG); # for children process reaping
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use Carp ();
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# automatically reap children processes in background
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$SIG{CHLD} = sub { while(waitpid(-1, WNOHANG) > 0) {} };
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sub new {
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if(ref($_[1]) eq 'HASH') {
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Carp::croak("Options to Commands should be key/value pairs, not hash reference");
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}
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my ($class, %conf) = @_;
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my $self = bless {}, $class;
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$self->initialize(%conf);
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return $self;
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}
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sub initialize {
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my ($self, %conf) = @_;
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my $pbot = delete $conf{pbot};
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if(not defined $pbot) {
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Carp::croak("Missing pbot reference to PBot::FactoidModuleLauncher");
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}
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$self->{child} = 0;
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$self->{pbot} = $pbot;
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}
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sub execute_module {
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my ($self, $from, $tonick, $nick, $user, $host, $keyword, $arguments) = @_;
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my $text;
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$arguments = "" if not defined $arguments;
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my $module = $self->{pbot}->factoids->factoids->{$keyword}{module};
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my $module_dir = $self->{pbot}->module_dir;
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$self->{pbot}->logger->log("(" . (defined $from ? $from : "(undef)") . "): $nick!$user\@$host: Executing module $module $arguments\n");
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$arguments = quotemeta($arguments);
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$arguments =~ s/\\\s+/ /g;
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$arguments =~ s/\-/-/g;
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print "args: $arguments\n";
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my $pid = fork;
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if(not defined $pid) {
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$self->{pbot}->logger->log("Could not fork module: $!\n");
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return "/me groans loudly.";
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}
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# FIXME -- add check to ensure $module} exists
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if($pid == 0) { # start child block
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$self->{child} = 1; # set to be killed after returning
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if(defined $tonick) {
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$self->{pbot}->logger->log("($from): $nick!$user\@$host) sent to $tonick\n");
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$text = `$module_dir/$module $arguments`;
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if(defined $text && length $text > 0) {
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return "$tonick: $text";
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} else {
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return "";
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}
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} else {
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return `$module_dir/$module $arguments`;
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}
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return "/me moans loudly."; # er, didn't execute the module?
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} # end child block
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else {
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$self->{child} = 0;
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}
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return ""; # child returns bot command, not parent -- so return blank/no command
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}
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1;
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