server/ext/dm-support.ext

#! perl

use Coro::Debug;
use IO::Socket;

my %global; # for use by eval'ed commands

sub tcp_serve($) {
   my ($fh) = @_;

   binmode $fh, ":raw:perlio:utf8";

   my $buf;
   my ($a, $b, $c, $d, $e, $f, $g, $h, $i, $j, $k, $l, $m, $n, $o, $p, $q, $r, $s, $t, $u, $v, $w, $x, $y, $z);
   my (%l, @l); # for use by shell users

   print $fh <<EOF;
Welcome!
Remember that everything entered here will be in the main coro context within cf::!
You can freely use \$a .. \$z and \@l and \%l

Useful commands (note the '&'):

reload_perl &
reload_config &
reload_regions &
reload_facedata &
reload_treasures &
reload_archetypes &
ext::help::reload &
ext::books::reload &
ext::map_tags::reload &
ext::map_world::reload &
\{cf::mallinfo})
EOF
   print $fh "\n> ";

   my $iow; $iow = EV::io $fh, EV::READ, sub {
      if (defined (my $cmd = <$fh>)) {
         $cmd =~ s/\s+$//;

         if ($cmd =~ /^\s*exit\b/i) {
            print $fh "will not exit() server.\n";
         } elsif ($cmd =~ s/^coro\s+// or $cmd =~ /^(?:ps|bt\s)/) {
            select $fh;
            Coro::Debug::command $cmd;
            select STDOUT;
         } else {
            my $sub = sub {
               package cf;
               select $fh;

               # compile first, then execute, as Coro does not support switching in eval string
               my $cb = eval "sub { $cmd \n}";

               my $t1 = Time::HiRes::time;
               my @res = $@ ? () : eval { $cb->() };
               my $t2 = Time::HiRes::time;

               print "\n",
                     "command: '$cmd'\n",
                     "execution time: ", $t2 - $t1, "\n";
               warn "evaluation error: $@" if $@;
               print "evaluation error: $@\n" if $@;
               print "result:\n", cf::dumpval @res > 1 ? \@res : $res[0] if @res;
               print "\n> ";

               select STDOUT;
            };

            if ($cmd =~ s/\s*&$//) {
               cf::async {
                  $Coro::current->desc ($cmd);
                  $sub->()
               };
            } else {
               $sub->();
            }
         }

         print $fh "\n> ";
      } else {
         undef $iow;
      }
   };
}

our $LISTENER;

# now a shell listening on a tcp-port - let the firewall decide access rights
if ($cf::CFG{perl_shell}) {
   if (my $listen = new IO::Socket::INET LocalAddr => $cf::CFG{perl_shell}, Listen => 1, ReuseAddr => 1, Blocking => 0) {
      $LISTENER = EV::io $listen, EV::READ, sub { tcp_serve $listen->accept };
   }
}


Revision:	1.20
Committed:	Tue Dec 16 23:25:24 2008 UTC (15 years, 5 months ago) by root
Branch:	MAIN
CVS Tags:	rel-2_73, rel-2_74
Changes since 1.19:	+1 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#! perl
2
3	root	1.10	use Coro::Debug;
4	root	1.1	use IO::Socket;
5
6			my %global; # for use by eval'ed commands
7
8			sub tcp_serve($) {
9			my ($fh) = @_;
10
11			binmode $fh, ":raw:perlio:utf8";
12
13			my $buf;
14	root	1.2	my ($a, $b, $c, $d, $e, $f, $g, $h, $i, $j, $k, $l, $m, $n, $o, $p, $q, $r, $s, $t, $u, $v, $w, $x, $y, $z);
15			my (%l, @l); # for use by shell users
16	root	1.1
17	root	1.12	print $fh <<EOF;
18	root	1.4	Welcome!
19			Remember that everything entered here will be in the main coro context within cf::!
20			You can freely use \$a .. \$z and \@l and \%l
21
22			Useful commands (note the '&'):
23
24			reload_perl &
25	root	1.8	reload_config &
26	root	1.4	reload_regions &
27			reload_facedata &
28			reload_treasures &
29			reload_archetypes &
30	root	1.6	ext::help::reload &
31			ext::books::reload &
32	root	1.9	ext::map_tags::reload &
33	root	1.5	ext::map_world::reload &
34	root	1.20	\{cf::mallinfo})
35	root	1.4	EOF
36	root	1.12	print $fh "\n> ";
37	root	1.1
38	root	1.16	my $iow; $iow = EV::io $fh, EV::READ, sub {
39	root	1.1	if (defined (my $cmd = <$fh>)) {
40	root	1.4	$cmd =~ s/\s+$//;
41	root	1.1
42			if ($cmd =~ /^\s*exit\b/i) {
43	root	1.13	print $fh "will not exit() server.\n";
44	root	1.10	} elsif ($cmd =~ s/^coro\s+// or $cmd =~ /^(?:ps\|bt\s)/) {
45	root	1.13	select $fh;
46	root	1.10	Coro::Debug::command $cmd;
47	root	1.13	select STDOUT;
48	root	1.1	} else {
49	root	1.4	my $sub = sub {
50			package cf;
51			select $fh;
52
53	root	1.19	# compile first, then execute, as Coro does not support switching in eval string
54	root	1.18	my $cb = eval "sub { $cmd \n}";
55	root	1.4
56			my $t1 = Time::HiRes::time;
57			my @res = $@ ? () : eval { $cb->() };
58			my $t2 = Time::HiRes::time;
59
60			print "\n",
61			"command: '$cmd'\n",
62			"execution time: ", $t2 - $t1, "\n";
63			warn "evaluation error: $@" if $@;
64			print "evaluation error: $@\n" if $@;
65			print "result:\n", cf::dumpval @res > 1 ? \@res : $res[0] if @res;
66			print "\n> ";
67	root	1.12
68			select STDOUT;
69	root	1.4	};
70
71			if ($cmd =~ s/\s*&$//) {
72	root	1.11	cf::async {
73			$Coro::current->desc ($cmd);
74			$sub->()
75			};
76	root	1.4	} else {
77			$sub->();
78			}
79	root	1.1	}
80
81	root	1.13	print $fh "\n> ";
82	root	1.1	} else {
83	root	1.16	undef $iow;
84	root	1.1	}
85	root	1.16	};
86	root	1.1	}
87
88	root	1.16	our $LISTENER;
89
90	root	1.1	# now a shell listening on a tcp-port - let the firewall decide access rights
91			if ($cf::CFG{perl_shell}) {
92	root	1.17	if (my $listen = new IO::Socket::INET LocalAddr => $cf::CFG{perl_shell}, Listen => 1, ReuseAddr => 1, Blocking => 0) {
93	root	1.16	$LISTENER = EV::io $listen, EV::READ, sub { tcp_serve $listen->accept };
94	root	1.1	}
95			}
96	root	1.10
97