X-Git-Url: http://dxcluster.net/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FDXCommandmode.pm;h=b3718721c69a843fe947c8a06d0725f0f36c37dc;hb=f43ac25669a7b9368d9537eed2043a864a906303;hp=d17f6f9178e2accdba36803005ac43901484aa84;hpb=e61ab5eeea22241ea8d8f1f6d072f5249901d788;p=spider.git

diff --git a/perl/DXCommandmode.pm b/perl/DXCommandmode.pm
index d17f6f91..b3718721 100644
--- a/perl/DXCommandmode.pm
+++ b/perl/DXCommandmode.pm
@@ -49,7 +49,9 @@ use DXCIDR;
 
 use strict;
 use vars qw(%Cache %cmd_cache $errstr %aliases $scriptbase %nothereslug
-	$maxbadcount $msgpolltime $default_pagelth $cmdimportdir $users $maxusers);
+	$maxbadcount $msgpolltime $default_pagelth $cmdimportdir $users $maxusers
+    $maxcmdlth $maxcmdcount $cmdinterval
+);
 
 %Cache = ();					# cache of dynamically loaded routine's mod times
 %cmd_cache = ();				# cache of short names
@@ -62,6 +64,9 @@ $cmdimportdir = "$main::root/cmd_import"; # the base directory for importing com
                                           # this does not exist as default, you need to create it manually
 $users = 0;					  # no of users on this node currently
 $maxusers = 0;				  # max no users on this node for this run
+$maxcmdlth = 512;				# max length of incoming cmd line (including the command and any arguments
+$maxcmdcount = 27;				# max no cmds entering $cmdinterval seconds
+$cmdinterval = 20;				# if user enters more than $maxcmdcount in $cmdinterval seconds, they are logged off
 
 #
 # obtain a new connection this is derived from dxchannel
@@ -74,14 +79,15 @@ sub new
 	# routing, this must go out here to prevent race condx
 	my $pkg = shift;
 	my $call = shift;
-#	my @rout = $main::routeroot->add_user($call, Route::here(1));
-	DXProt::_add_thingy($main::routeroot, [$call, 0, 0, 1, undef, undef, $self->hostname], );
+	#	my @rout = $main::routeroot->add_user($call, Route::here(1));
+	my $ipaddr = alias_localhost($self->hostname);
+	DXProt::_add_thingy($main::routeroot, [$call, 0, 0, 1, undef, undef, $ipaddr], );
 
-	# ALWAYS output the user
+	# ALWAYS output the user (except if the updates not enabled)
 	my $ref = Route::User::get($call);
 	if ($ref) {
 		$main::me->route_pc16($main::mycall, undef, $main::routeroot, $ref);
-		$main::me->route_pc92a($main::mycall, undef, $main::routeroot, $ref) unless $DXProt::pc92_slug_changes;
+		$main::me->route_pc92a($main::mycall, undef, $main::routeroot, $ref) unless $DXProt::pc92_slug_changes || ! $DXProt::pc92_ad_enable;
 	}
 
 	return $self;
@@ -247,7 +253,12 @@ sub start
 	}
 
 	$self->lastmsgpoll($main::systime);
+	$self->{user_interval} = $self->user->user_interval || $main::user_interval; # allow user to change idle time between prompts
 	$self->prompt;
+
+	$self->{cmdintstart} = 0; # set when systime > this + cmdinterval and a command entered, cmdcount set to 0
+	$self->{cmdcount} = 0;		   # incremented on a coming in. If this value > $maxcmdcount, disconnect
+
 }
 
 #
@@ -259,6 +270,7 @@ sub normal
 	my $self = shift;
 	my $cmdline = shift;
 	my @ans;
+	my @bad;
 
 	# save this for them's that need it
 	my $rawline = $cmdline;
@@ -342,23 +354,25 @@ sub normal
 			}
 			$self->state('prompt');
 			delete $self->{talklist};
-		} elsif ($cmdline =~ m|^/+\w+|) {
+		} elsif ($cmdline =~ m|^[/\w\\]+|) {
 			$cmdline =~ s|^/||;
 			my $sendit = $cmdline =~ s|^/+||;
-			my @in = $self->run_cmd($cmdline);
-			$self->send_ans(@in);
-			if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
-				foreach my $l (@in) {
-					my @bad;
-					if (@bad = BadWords::check($l)) {
-						$self->badcount(($self->badcount||0) + @bad);
-						LogDbg('DXCommand', "$self->{call} swore: $l with words:" . join(',', @bad) . ")");
-					} else {
-						for (@{$self->{talklist}}) {
-							if ($self->{state} eq 'talk') {
-								$self->send_talks($_, $l);
-							} else {
-								send_chats($self, $_, $l)
+			if (@bad = BadWords::check($cmdline)) {
+				$self->badcount(($self->badcount||0) + @bad);
+				LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
+			} else {
+				my @cmd = split /\s*\\n\s*/, $cmdline;
+				foreach my $l (@cmd) {
+					my @in = $self->run_cmd($l);
+					$self->send_ans(@in);
+					if ($sendit && $self->{talklist} && @{$self->{talklist}}) {
+						foreach my $l (@in) {
+							for (@{$self->{talklist}}) {
+								if ($self->{state} eq 'talk') {
+									$self->send_talks($_, $l);
+								} else {
+									send_chats($self, $_, $l)
+								}
 							}
 						}
 					}
@@ -367,10 +381,9 @@ sub normal
 			$self->send($self->{state} eq 'talk' ? $self->talk_prompt : $self->chat_prompt);
 		} elsif ($self->{talklist} && @{$self->{talklist}}) {
 			# send what has been said to whoever is in this person's talk list
-			my @bad;
 			if (@bad = BadWords::check($cmdline)) {
 				$self->badcount(($self->badcount||0) + @bad);
-				LogDbg('DXCommand', "$self->{call} swore: $cmdline with words:" . join(',', @bad) . ")");
+				LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
 			} else {
 				for (@{$self->{talklist}}) {
 					if ($self->{state} eq 'talk') {
@@ -402,11 +415,33 @@ sub normal
 		}
 		$self->send_ans(@ans);
 	} else {
-		$self->send_ans(run_cmd($self, $cmdline));
+#		if (@bad = BadWords::check($cmdline)) {
+#			$self->badcount(($self->badcount||0) + @bad);
+#			LogDbg('DXCommand', "$self->{call} swore: '$cmdline' with badwords: '" . join(',', @bad) . "'");
+		#		} else {
+		my @cmd = split /\s*\\n\s*/, $cmdline;
+		foreach my $l (@cmd) {
+
+			# rate limiting code
+			
+			if (($self->{cmdintstart} + $cmdinterval <= $main::systime) || $self->{inscript}) {
+				$self->{cmdintstart} = $main::systime;
+				$self->{cmdcount} = 1;
+				dbg("$self->{call} started cmdinterval") if isdbg('cmdcount');
+			} else {
+				if (++$self->{cmdcount} > $maxcmdcount) {
+					LogDbg('baduser', qq{User $self->{call} sent $self->{cmdcount} (>= $maxcmdcount) cmds in $cmdinterval seconds starting at } . atime($self->{cmdintstart}) . ", disconnected" );
+					$self->disconnect;
+				}
+				dbg("$self->{call} cmd: '$l' cmdcount = $self->{cmdcount} in $cmdinterval secs") if isdbg('cmdcount');
+			}
+			$self->send_ans(run_cmd($self, $l));
+		}
+#		}
 	} 
 
 	# check for excessive swearing
-	if ($self->{badcount} && $self->{badcount} >= $maxbadcount) {
+	if ($maxbadcount && $self->{badcount} && $self->{badcount} >= $maxbadcount) {
 		LogDbg('DXCommand', "$self->{call} logged out for excessive swearing");
 		$self->disconnect;
 		return;
@@ -448,7 +483,8 @@ sub send_chats
 
 	my $msgid = DXProt::nextchatmsgid();
 	$text = "#$msgid $text";
-	$main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text));
+	my $ipaddr = alias_localhost($self->hostname || '127.0.0.1');
+	$main::me->normal(DXProt::pc93($target, $self->{call}, undef, $text, undef, $ipaddr));
 }
 
 sub special_prompt
@@ -527,15 +563,15 @@ sub run_cmd
 		
 	if ($cmd) {
 
-		# check cmd
-		if ($cmd =~ m|^/| || $cmd =~ m|[^-?\w/]|) {
+		# strip out // on command only
+		$cmd =~ s|//+|/|g;
+
+		# check for length of whole command line and any invalid characters
+		if (length $cmdline > $maxcmdlth || $cmd =~ m|\.| || $cmd !~ m|^\w+(?:/\w+){0,1}(?:/\d+)?$|) {
 			LogDbg('DXCommand', "cmd: $self->{call} - invalid characters in '$cmd'");
-			return $self->_error_out('e1');
+			return $self->_error_out('e40');
 		}
 
-		# strip out // on command only
-		$cmd =~ s|//|/|g;
-					
 		my ($path, $fcmd);
 			
 		dbg("cmd: $cmd") if isdbg('command');
@@ -578,7 +614,7 @@ sub run_cmd
 				return $self->_error_out('e1');
 			}
 		} else {
-			dbg("cmd: $cmd not found") if isdbg('command');
+			LogDbg('DXCommand', "$self->{call} cmd: '$cmd' not found");
 			return $self->_error_out('e1');
 		}
 	}
@@ -587,11 +623,11 @@ sub run_cmd
 	if ($ok) {
 		delete $self->{errors};
 	} else {
-		if (++$self->{errors} > $DXChannel::maxerrors) {
+		if ($self != $main::me && ++$self->{errors} > $DXChannel::maxerrors) {
 			$self->send($self->msg('e26'));
 			$self->disconnect;
 			return ();
-		}
+		} 
 	}
 	return map {s/([^\s])\s+$/$1/; $_} @ans;
 }
@@ -617,7 +653,7 @@ sub process
 		}
 		
 		# send a prompt if no activity out on this channel
-		if ($t >= $dxchan->t + $main::user_interval) {
+		if ($t >= $dxchan->t + $dxchan->{user_interval}) {
 			$dxchan->prompt() if $dxchan->{state} =~ /^prompt/o;
 			$dxchan->t($t);
 		}
@@ -663,7 +699,7 @@ sub disconnect
 
 		# issue a pc17 to everybody interested
 		$main::me->route_pc17($main::mycall, undef, $main::routeroot, $uref);
-		$main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes;
+		$main::me->route_pc92d($main::mycall, undef, $main::routeroot, $uref) unless $DXProt::pc92_slug_changes || ! $DXProt::pc92_ad_enable;
 	} else {
 		confess "trying to disconnect a non existant user $call";
 	}
@@ -871,7 +907,6 @@ sub find_cmd_name {
 		
 		if (isdbg('eval')) {
 			my @list = split /\n/, $eval;
-			my $line;
 			for (@list) {
 				dbg($_ . "\n") if isdbg('eval');
 			}
@@ -1023,41 +1058,45 @@ sub format_dx_spot
 	$c =~ s/\t/ /g;
 	my $comment = substr (($c || ''), 0, $clth);
 	$comment .= ' ' x ($clth - (length($comment)));
-	
-    if (!$slot1 && $self->{user}->wantgrid) {
-		my $ref = DXUser::get_current($_[1]);
-		if ($ref && $ref->qra) {
-			$slot1 = ' ' . substr($ref->qra, 0, 4);
+
+	if ($self->{user}) {		# to allow the standalone program 'showdx' to work
+		if (!$slot1 && $self->{user}->wantgrid) {
+			my $ref = DXUser::get_current($_[1]);
+			if ($ref && $ref->qra) {
+				$slot1 = ' ' . substr($ref->qra, 0, 4);
+			}
 		}
-	}
-	if (!$slot1 && $self->{user}->wantusstate) {
-		$slot1 = " $_[12]" if $_[12];
-	}
-	unless ($slot1) {
-		if ($self->{user}->wantdxitu) {
-			$slot1 = sprintf(" %2d", $_[8]) if defined $_[8]; 
-		} elsif ($self->{user}->wantdxcq) {
-			$slot1 = sprintf(" %2d", $_[9]) if defined $_[9];
+		if (!$slot1 && $self->{user}->wantusstate) {
+			$slot1 = " $_[12]" if $_[12];
 		}
-	}
-	$comment = substr($comment, 0,  $clth-length($slot1)) . $slot1 if $slot1;
+		unless ($slot1) {
+			if ($self->{user}->wantdxitu) {
+				$slot1 = sprintf(" %2d", $_[8]) if defined $_[8]; 
+			}
+			elsif ($self->{user}->wantdxcq) {
+				$slot1 = sprintf(" %2d", $_[9]) if defined $_[9];
+			}
+		}
+		$comment = substr($comment, 0,  $clth-length($slot1)) . $slot1 if $slot1;
 	
-    if (!$slot2 && $self->{user}->wantgrid) {
-		my $origin = $_[4];
-		$origin =~ s/-#$//;			# sigh......
-		my $ref = DXUser::get_current($origin);
-		if ($ref && $ref->qra) {
-			$slot2 = ' ' . substr($ref->qra, 0, 4);
+		if (!$slot2 && $self->{user}->wantgrid) {
+			my $origin = $_[4];
+			$origin =~ s/-#$//;	# sigh......
+			my $ref = DXUser::get_current($origin);
+			if ($ref && $ref->qra) {
+				$slot2 = ' ' . substr($ref->qra, 0, 4);
+			}
 		}
-	}
-	if (!$slot2 && $self->{user}->wantusstate) {
-		$slot2 = " $_[13]" if $_[13];
-	}
-	unless ($slot2) {
-		if ($self->{user}->wantdxitu) {
-			$slot2 = sprintf(" %2d", $_[10]) if defined $_[10]; 
-		} elsif ($self->{user}->wantdxcq) {
-			$slot2 = sprintf(" %2d", $_[11]) if defined $_[11]; 
+		if (!$slot2 && $self->{user}->wantusstate) {
+			$slot2 = " $_[13]" if $_[13];
+		}
+		unless ($slot2) {
+			if ($self->{user}->wantdxitu) {
+				$slot2 = sprintf(" %2d", $_[10]) if defined $_[10]; 
+			}
+			elsif ($self->{user}->wantdxcq) {
+				$slot2 = sprintf(" %2d", $_[11]) if defined $_[11]; 
+			}
 		}
 	}
 
@@ -1368,7 +1407,7 @@ sub spawn_cmd
 	no strict 'refs';
 
 	# just behave normally if something has set the "one-shot" _nospawn in the channel
-	if ($self->{_nospawn}) {
+	if ($self->{_nospawn} || $main::is_win == 1) {
 		eval { @out = $cmdref->(@$args); };
 		if ($@) {
 			DXDebug::dbgprintring(25);
@@ -1434,5 +1473,20 @@ sub user_count
     return ($users, $maxusers);
 }
 
+# alias localhost if required. This is designed to repress all localhost and other
+# internal interfaces to a fixed (outside) IPv4 or IPV6 address
+sub alias_localhost
+{
+	my $hostname = shift;
+	if ($hostname =~ /./) {
+		return $hostname unless $main::localhost_alias_ipv4;
+		return (grep $hostname eq $_, @main::localhost_names) ? $main::localhost_alias_ipv4 : $hostname;
+	} elsif ($hostname =~ /:/) {
+		return $hostname unless $main::localhost_alias_ipv6;
+		return (grep $hostname eq $_, @main::localhost_names) ? $main::localhost_alias_ipv6 : $hostname;
+	}
+	return $hostname;
+}
+
 1;
 __END__