| … | |
… | |
| 5 | use Storable; |
5 | use Storable; |
| 6 | use Opcode; |
6 | use Opcode; |
| 7 | use Safe; |
7 | use Safe; |
| 8 | use Safe::Hole; |
8 | use Safe::Hole; |
| 9 | |
9 | |
|
|
10 | use YAML::Syck (); |
| 10 | use Time::HiRes; |
11 | use Time::HiRes; |
| 11 | use Event; |
12 | use Event; |
| 12 | $Event::Eval = 1; # no idea why this is required, but it is |
13 | $Event::Eval = 1; # no idea why this is required, but it is |
| 13 | |
14 | |
|
|
15 | # work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? |
|
|
16 | $YAML::Syck::ImplicitUnicode = 1; |
|
|
17 | |
| 14 | use strict; |
18 | use strict; |
| 15 | |
19 | |
| 16 | _reload_1; |
20 | _init_vars; |
| 17 | |
21 | |
| 18 | our %COMMAND = (); |
22 | our %COMMAND = (); |
| 19 | our @EVENT; |
23 | our @EVENT; |
| 20 | our %PROP_TYPE; |
|
|
| 21 | our %PROP_IDX; |
|
|
| 22 | our $LIBDIR = maps_directory "perl"; |
24 | our $LIBDIR = maps_directory "perl"; |
| 23 | |
25 | |
| 24 | our $TICK = MAX_TIME * 1e-6; |
26 | our $TICK = MAX_TIME * 1e-6; |
| 25 | our $TICK_WATCHER; |
27 | our $TICK_WATCHER; |
| 26 | our $NEXT_TICK; |
28 | our $NEXT_TICK; |
|
|
29 | |
|
|
30 | our %CFG; |
|
|
31 | |
|
|
32 | ############################################################################# |
|
|
33 | |
|
|
34 | =head2 GLOBAL VARIABLES |
|
|
35 | |
|
|
36 | =over 4 |
|
|
37 | |
|
|
38 | =item $cf::LIBDIR |
|
|
39 | |
|
|
40 | The perl library directory, where extensions and cf-specific modules can |
|
|
41 | be found. It will be added to C<@INC> automatically. |
|
|
42 | |
|
|
43 | =item $cf::TICK |
|
|
44 | |
|
|
45 | The interval between server ticks, in seconds. |
|
|
46 | |
|
|
47 | =item %cf::CFG |
|
|
48 | |
|
|
49 | Configuration for the server, loaded from C</etc/crossfire/config>, or |
|
|
50 | from wherever your confdir points to. |
|
|
51 | |
|
|
52 | =back |
|
|
53 | |
|
|
54 | =cut |
| 27 | |
55 | |
| 28 | BEGIN { |
56 | BEGIN { |
| 29 | *CORE::GLOBAL::warn = sub { |
57 | *CORE::GLOBAL::warn = sub { |
| 30 | my $msg = join "", @_; |
58 | my $msg = join "", @_; |
| 31 | $msg .= "\n" |
59 | $msg .= "\n" |
| … | |
… | |
| 34 | print STDERR "cfperl: $msg"; |
62 | print STDERR "cfperl: $msg"; |
| 35 | LOG llevError, "cfperl: $msg"; |
63 | LOG llevError, "cfperl: $msg"; |
| 36 | }; |
64 | }; |
| 37 | } |
65 | } |
| 38 | |
66 | |
| 39 | my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply! |
|
|
| 40 | |
|
|
| 41 | # generate property mutators |
|
|
| 42 | sub prop_gen { |
|
|
| 43 | my ($prefix, $class) = @_; |
|
|
| 44 | |
|
|
| 45 | no strict 'refs'; |
|
|
| 46 | |
|
|
| 47 | for my $prop (keys %PROP_TYPE) { |
|
|
| 48 | $prop =~ /^\Q$prefix\E_(.*$)/ or next; |
|
|
| 49 | my $sub = lc $1; |
|
|
| 50 | |
|
|
| 51 | my $type = $PROP_TYPE{$prop}; |
|
|
| 52 | my $idx = $PROP_IDX {$prop}; |
|
|
| 53 | |
|
|
| 54 | *{"$class\::get_$sub"} = *{"$class\::$sub"} = sub { |
|
|
| 55 | $_[0]->get_property ($type, $idx) |
|
|
| 56 | }; |
|
|
| 57 | |
|
|
| 58 | *{"$class\::set_$sub"} = sub { |
|
|
| 59 | $_[0]->set_property ($type, $idx, $_[1]); |
|
|
| 60 | } unless $ignore_set{$prop}; |
|
|
| 61 | } |
|
|
| 62 | } |
|
|
| 63 | |
|
|
| 64 | # auto-generate most of the API |
|
|
| 65 | |
|
|
| 66 | prop_gen OBJECT_PROP => "cf::object"; |
|
|
| 67 | # CFAPI_OBJECT_ANIMATION? |
|
|
| 68 | prop_gen PLAYER_PROP => "cf::object::player"; |
|
|
| 69 | |
|
|
| 70 | prop_gen MAP_PROP => "cf::map"; |
|
|
| 71 | prop_gen ARCH_PROP => "cf::arch"; |
|
|
| 72 | |
|
|
| 73 | @safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
67 | @safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
| 74 | |
68 | |
| 75 | # we bless all objects into (empty) derived classes to force a method lookup |
69 | # we bless all objects into (empty) derived classes to force a method lookup |
| 76 | # within the Safe compartment. |
70 | # within the Safe compartment. |
| 77 | for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) { |
71 | for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) { |
| … | |
… | |
| 87 | my @exts; |
81 | my @exts; |
| 88 | my @hook; |
82 | my @hook; |
| 89 | my %command; |
83 | my %command; |
| 90 | my %extcmd; |
84 | my %extcmd; |
| 91 | |
85 | |
| 92 | ############################################################################# |
86 | =head2 UTILITY FUNCTIONS |
| 93 | # utility functions |
87 | |
|
|
88 | =over 4 |
|
|
89 | |
|
|
90 | =cut |
| 94 | |
91 | |
| 95 | use JSON::Syck (); # TODO# replace by JSON::PC once working |
92 | use JSON::Syck (); # TODO# replace by JSON::PC once working |
|
|
93 | |
|
|
94 | =item $ref = cf::from_json $json |
|
|
95 | |
|
|
96 | Converts a JSON string into the corresponding perl data structure. |
|
|
97 | |
|
|
98 | =cut |
| 96 | |
99 | |
| 97 | sub from_json($) { |
100 | sub from_json($) { |
| 98 | $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs |
101 | $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs |
| 99 | JSON::Syck::Load $_[0] |
102 | JSON::Syck::Load $_[0] |
| 100 | } |
103 | } |
| 101 | |
104 | |
|
|
105 | =item $json = cf::to_json $ref |
|
|
106 | |
|
|
107 | Converts a perl data structure into its JSON representation. |
|
|
108 | |
|
|
109 | =cut |
|
|
110 | |
| 102 | sub to_json($) { |
111 | sub to_json($) { |
| 103 | $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs |
112 | $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs |
| 104 | JSON::Syck::Dump $_[0] |
113 | JSON::Syck::Dump $_[0] |
| 105 | } |
114 | } |
| 106 | |
115 | |
| 107 | ############################################################################# |
116 | =back |
| 108 | # "new" plug-in system |
|
|
| 109 | |
117 | |
|
|
118 | =cut |
|
|
119 | |
|
|
120 | ############################################################################# |
|
|
121 | |
| 110 | =head3 EVENTS AND OBJECT ATTACHMENTS |
122 | =head2 EVENTS AND OBJECT ATTACHMENTS |
| 111 | |
123 | |
| 112 | =over 4 |
124 | =over 4 |
| 113 | |
125 | |
| 114 | =item $object->attach ($attachment, key => $value...) |
126 | =item $object->attach ($attachment, key => $value...) |
| 115 | |
127 | |
| … | |
… | |
| 389 | for (@$callbacks) { |
401 | for (@$callbacks) { |
| 390 | eval { &{$_->[1]} }; |
402 | eval { &{$_->[1]} }; |
| 391 | |
403 | |
| 392 | if ($@) { |
404 | if ($@) { |
| 393 | warn "$@"; |
405 | warn "$@"; |
| 394 | warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n"; |
406 | warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; |
| 395 | override; |
407 | override; |
| 396 | } |
408 | } |
| 397 | |
409 | |
| 398 | return 1 if $override; |
410 | return 1 if $override; |
| 399 | } |
411 | } |
| … | |
… | |
| 415 | removed in future versions), and there is no public API to access override |
427 | removed in future versions), and there is no public API to access override |
| 416 | results (if you must, access C<@cf::invoke_results> directly). |
428 | results (if you must, access C<@cf::invoke_results> directly). |
| 417 | |
429 | |
| 418 | =back |
430 | =back |
| 419 | |
431 | |
| 420 | =head2 methods valid for all pointers |
432 | =cut |
|
|
433 | |
|
|
434 | ############################################################################# |
|
|
435 | |
|
|
436 | =head2 METHODS VALID FOR ALL CORE OBJECTS |
| 421 | |
437 | |
| 422 | =over 4 |
438 | =over 4 |
| 423 | |
439 | |
| 424 | =item $object->valid |
440 | =item $object->valid, $player->valid, $map->valid |
| 425 | |
|
|
| 426 | =item $player->valid |
|
|
| 427 | |
|
|
| 428 | =item $map->valid |
|
|
| 429 | |
441 | |
| 430 | Just because you have a perl object does not mean that the corresponding |
442 | Just because you have a perl object does not mean that the corresponding |
| 431 | C-level object still exists. If you try to access an object that has no |
443 | C-level object still exists. If you try to access an object that has no |
| 432 | valid C counterpart anymore you get an exception at runtime. This method |
444 | valid C counterpart anymore you get an exception at runtime. This method |
| 433 | can be used to test for existence of the C object part without causing an |
445 | can be used to test for existence of the C object part without causing an |
| … | |
… | |
| 476 | } |
488 | } |
| 477 | } |
489 | } |
| 478 | } |
490 | } |
| 479 | |
491 | |
| 480 | sub object_freezer_save { |
492 | sub object_freezer_save { |
| 481 | my ($filename, $objs) = @_; |
493 | my ($filename, $rdata, $objs) = @_; |
| 482 | |
494 | |
| 483 | if (@$objs) { |
495 | if (length $$rdata) { |
|
|
496 | warn sprintf "saving %s (%d,%d)\n", |
|
|
497 | $filename, length $$rdata, scalar @$objs; |
|
|
498 | |
| 484 | open my $fh, ">:raw", "$filename.pst~"; |
499 | if (open my $fh, ">:raw", "$filename~") { |
|
|
500 | chmod SAVE_MODE, $fh; |
|
|
501 | syswrite $fh, $$rdata; |
|
|
502 | close $fh; |
|
|
503 | |
|
|
504 | if (@$objs && open my $fh, ">:raw", "$filename.pst~") { |
|
|
505 | chmod SAVE_MODE, $fh; |
| 485 | syswrite $fh, Storable::nfreeze { version => 1, objs => $objs }; |
506 | syswrite $fh, Storable::nfreeze { version => 1, objs => $objs }; |
| 486 | close $fh; |
507 | close $fh; |
| 487 | chmod SAVE_MODE, "$filename.pst~"; |
|
|
| 488 | rename "$filename.pst~", "$filename.pst"; |
508 | rename "$filename.pst~", "$filename.pst"; |
|
|
509 | } else { |
|
|
510 | unlink "$filename.pst"; |
|
|
511 | } |
|
|
512 | |
|
|
513 | rename "$filename~", $filename; |
|
|
514 | } else { |
|
|
515 | warn "FATAL: $filename~: $!\n"; |
|
|
516 | } |
| 489 | } else { |
517 | } else { |
|
|
518 | unlink $filename; |
| 490 | unlink "$filename.pst"; |
519 | unlink "$filename.pst"; |
| 491 | } |
520 | } |
| 492 | |
|
|
| 493 | chmod SAVE_MODE, "$filename~"; |
|
|
| 494 | rename "$filename~", $filename; |
|
|
| 495 | } |
521 | } |
| 496 | |
522 | |
| 497 | sub object_thawer_load { |
523 | sub object_thawer_load { |
| 498 | my ($filename) = @_; |
524 | my ($filename) = @_; |
| 499 | |
525 | |
|
|
526 | local $/; |
|
|
527 | |
|
|
528 | my $av; |
|
|
529 | |
|
|
530 | #TODO: use sysread etc. |
|
|
531 | if (open my $data, "<:raw:perlio", $filename) { |
|
|
532 | $data = <$data>; |
| 500 | open my $fh, "<:raw:perlio", "$filename.pst" |
533 | if (open my $pst, "<:raw:perlio", "$filename.pst") { |
| 501 | or return; |
534 | $av = eval { (Storable::thaw <$pst>)->{objs} }; |
|
|
535 | } |
|
|
536 | return ($data, $av); |
|
|
537 | } |
| 502 | |
538 | |
| 503 | eval { local $/; (Storable::thaw <$fh>)->{objs} } |
539 | () |
| 504 | } |
540 | } |
| 505 | |
541 | |
| 506 | attach_to_objects |
542 | attach_to_objects |
| 507 | prio => -1000000, |
543 | prio => -1000000, |
| 508 | on_clone => sub { |
544 | on_clone => sub { |
| … | |
… | |
| 654 | load_extension $ext; |
690 | load_extension $ext; |
| 655 | 1 |
691 | 1 |
| 656 | } or warn "$ext not loaded: $@"; |
692 | } or warn "$ext not loaded: $@"; |
| 657 | } |
693 | } |
| 658 | } |
694 | } |
| 659 | |
|
|
| 660 | sub _perl_reload(&) { |
|
|
| 661 | my ($msg) = @_; |
|
|
| 662 | |
|
|
| 663 | $msg->("reloading..."); |
|
|
| 664 | |
|
|
| 665 | eval { |
|
|
| 666 | # 1. cancel all watchers |
|
|
| 667 | $_->cancel for Event::all_watchers; |
|
|
| 668 | |
|
|
| 669 | # 2. unload all extensions |
|
|
| 670 | for (@exts) { |
|
|
| 671 | $msg->("unloading <$_>"); |
|
|
| 672 | unload_extension $_; |
|
|
| 673 | } |
|
|
| 674 | |
|
|
| 675 | # 3. unload all modules loaded from $LIBDIR |
|
|
| 676 | while (my ($k, $v) = each %INC) { |
|
|
| 677 | next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
|
|
| 678 | |
|
|
| 679 | $msg->("removing <$k>"); |
|
|
| 680 | delete $INC{$k}; |
|
|
| 681 | |
|
|
| 682 | $k =~ s/\.pm$//; |
|
|
| 683 | $k =~ s/\//::/g; |
|
|
| 684 | |
|
|
| 685 | if (my $cb = $k->can ("unload_module")) { |
|
|
| 686 | $cb->(); |
|
|
| 687 | } |
|
|
| 688 | |
|
|
| 689 | Symbol::delete_package $k; |
|
|
| 690 | } |
|
|
| 691 | |
|
|
| 692 | # 4. get rid of safe::, as good as possible |
|
|
| 693 | Symbol::delete_package "safe::$_" |
|
|
| 694 | for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region); |
|
|
| 695 | |
|
|
| 696 | # 5. remove register_script_function callbacks |
|
|
| 697 | # TODO |
|
|
| 698 | |
|
|
| 699 | # 6. unload cf.pm "a bit" |
|
|
| 700 | delete $INC{"cf.pm"}; |
|
|
| 701 | |
|
|
| 702 | # don't, removes xs symbols, too, |
|
|
| 703 | # and global variables created in xs |
|
|
| 704 | #Symbol::delete_package __PACKAGE__; |
|
|
| 705 | |
|
|
| 706 | # 7. reload cf.pm |
|
|
| 707 | $msg->("reloading cf.pm"); |
|
|
| 708 | require cf; |
|
|
| 709 | }; |
|
|
| 710 | $msg->($@) if $@; |
|
|
| 711 | |
|
|
| 712 | $msg->("reloaded"); |
|
|
| 713 | }; |
|
|
| 714 | |
|
|
| 715 | sub perl_reload() { |
|
|
| 716 | _perl_reload { |
|
|
| 717 | warn $_[0]; |
|
|
| 718 | print "$_[0]\n"; |
|
|
| 719 | }; |
|
|
| 720 | } |
|
|
| 721 | |
|
|
| 722 | register_command "perl-reload", 0, sub { |
|
|
| 723 | my ($who, $arg) = @_; |
|
|
| 724 | |
|
|
| 725 | if ($who->flag (FLAG_WIZ)) { |
|
|
| 726 | _perl_reload { |
|
|
| 727 | warn $_[0]; |
|
|
| 728 | $who->message ($_[0]); |
|
|
| 729 | }; |
|
|
| 730 | } |
|
|
| 731 | }; |
|
|
| 732 | |
695 | |
| 733 | ############################################################################# |
696 | ############################################################################# |
| 734 | # extcmd framework, basically convert ext <msg> |
697 | # extcmd framework, basically convert ext <msg> |
| 735 | # into pkg::->on_extcmd_arg1 (...) while shortcutting a few |
698 | # into pkg::->on_extcmd_arg1 (...) while shortcutting a few |
| 736 | |
699 | |
| … | |
… | |
| 764 | defined $path or return; |
727 | defined $path or return; |
| 765 | |
728 | |
| 766 | unlink "$path.pst"; |
729 | unlink "$path.pst"; |
| 767 | }; |
730 | }; |
| 768 | |
731 | |
| 769 | # old style persistent data, TODO: remove #d# |
|
|
| 770 | *cf::mapsupport::on_swapin = sub { |
|
|
| 771 | my ($map) = @_; |
|
|
| 772 | |
|
|
| 773 | my $path = $map->tmpname; |
|
|
| 774 | $path = $map->path unless defined $path; |
|
|
| 775 | |
|
|
| 776 | warn "$path.cfperl\n";#d# |
|
|
| 777 | |
|
|
| 778 | open my $fh, "<:raw", "$path.cfperl" |
|
|
| 779 | or return; # no perl data |
|
|
| 780 | |
|
|
| 781 | my $data = Storable::thaw do { local $/; <$fh> }; |
|
|
| 782 | |
|
|
| 783 | $data->{version} <= 1 |
|
|
| 784 | or return; # too new |
|
|
| 785 | |
|
|
| 786 | $map->_set_obs ($data->{obs}); |
|
|
| 787 | $map->invoke (EVENT_MAP_UPGRADE); |
|
|
| 788 | }; |
|
|
| 789 | |
|
|
| 790 | attach_to_maps prio => -10000, package => cf::mapsupport::; |
732 | attach_to_maps prio => -10000, package => cf::mapsupport::; |
| 791 | |
733 | |
| 792 | ############################################################################# |
734 | ############################################################################# |
| 793 | # load/save perl data associated with player->ob objects |
735 | # load/save perl data associated with player->ob objects |
| 794 | |
736 | |
| 795 | sub all_objects(@) { |
737 | sub all_objects(@) { |
| 796 | @_, map all_objects ($_->inv), @_ |
738 | @_, map all_objects ($_->inv), @_ |
| 797 | } |
739 | } |
| 798 | |
740 | |
|
|
741 | # TODO: compatibility cruft, remove when no longer needed |
| 799 | attach_to_players |
742 | attach_to_players |
| 800 | on_load => sub { |
743 | on_load => sub { |
| 801 | my ($pl, $path) = @_; |
744 | my ($pl, $path) = @_; |
| 802 | |
745 | |
| 803 | for my $o (all_objects $pl->ob) { |
746 | for my $o (all_objects $pl->ob) { |
| … | |
… | |
| 809 | } |
752 | } |
| 810 | }, |
753 | }, |
| 811 | ; |
754 | ; |
| 812 | |
755 | |
| 813 | ############################################################################# |
756 | ############################################################################# |
| 814 | # core extensions - in perl |
757 | |
|
|
758 | =head2 CORE EXTENSIONS |
|
|
759 | |
|
|
760 | Functions and methods that extend core crossfire objects. |
|
|
761 | |
|
|
762 | =over 4 |
| 815 | |
763 | |
| 816 | =item cf::player::exists $login |
764 | =item cf::player::exists $login |
| 817 | |
765 | |
| 818 | Returns true when the given account exists. |
766 | Returns true when the given account exists. |
| 819 | |
767 | |
| … | |
… | |
| 859 | $msg{msgid} = $id; |
807 | $msg{msgid} = $id; |
| 860 | |
808 | |
| 861 | $self->send ("ext " . to_json \%msg); |
809 | $self->send ("ext " . to_json \%msg); |
| 862 | } |
810 | } |
| 863 | |
811 | |
|
|
812 | =back |
|
|
813 | |
|
|
814 | =cut |
|
|
815 | |
| 864 | ############################################################################# |
816 | ############################################################################# |
| 865 | # map scripting support |
817 | |
|
|
818 | =head2 SAFE SCRIPTING |
|
|
819 | |
|
|
820 | Functions that provide a safe environment to compile and execute |
|
|
821 | snippets of perl code without them endangering the safety of the server |
|
|
822 | itself. Looping constructs, I/O operators and other built-in functionality |
|
|
823 | is not available in the safe scripting environment, and the number of |
|
|
824 | functions and methods that cna be called is greatly reduced. |
|
|
825 | |
|
|
826 | =cut |
| 866 | |
827 | |
| 867 | our $safe = new Safe "safe"; |
828 | our $safe = new Safe "safe"; |
| 868 | our $safe_hole = new Safe::Hole; |
829 | our $safe_hole = new Safe::Hole; |
| 869 | |
830 | |
| 870 | $SIG{FPE} = 'IGNORE'; |
831 | $SIG{FPE} = 'IGNORE'; |
| 871 | |
832 | |
| 872 | $safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
833 | $safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
| 873 | |
834 | |
| 874 | # here we export the classes and methods available to script code |
835 | # here we export the classes and methods available to script code |
|
|
836 | |
|
|
837 | =pod |
|
|
838 | |
|
|
839 | The following fucntions and emthods are available within a safe environment: |
|
|
840 | |
|
|
841 | cf::object contr pay_amount pay_player |
|
|
842 | cf::object::player player |
|
|
843 | cf::player peaceful |
|
|
844 | |
|
|
845 | =cut |
| 875 | |
846 | |
| 876 | for ( |
847 | for ( |
| 877 | ["cf::object" => qw(contr pay_amount pay_player)], |
848 | ["cf::object" => qw(contr pay_amount pay_player)], |
| 878 | ["cf::object::player" => qw(player)], |
849 | ["cf::object::player" => qw(player)], |
| 879 | ["cf::player" => qw(peaceful)], |
850 | ["cf::player" => qw(peaceful)], |
| … | |
… | |
| 882 | my ($pkg, @funs) = @$_; |
853 | my ($pkg, @funs) = @$_; |
| 883 | *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
854 | *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
| 884 | for @funs; |
855 | for @funs; |
| 885 | } |
856 | } |
| 886 | |
857 | |
|
|
858 | =over 4 |
|
|
859 | |
|
|
860 | =item @retval = safe_eval $code, [var => value, ...] |
|
|
861 | |
|
|
862 | Compiled and executes the given perl code snippet. additional var/value |
|
|
863 | pairs result in temporary local (my) scalar variables of the given name |
|
|
864 | that are available in the code snippet. Example: |
|
|
865 | |
|
|
866 | my $five = safe_eval '$first + $second', first => 1, second => 4; |
|
|
867 | |
|
|
868 | =cut |
|
|
869 | |
| 887 | sub safe_eval($;@) { |
870 | sub safe_eval($;@) { |
| 888 | my ($code, %vars) = @_; |
871 | my ($code, %vars) = @_; |
| 889 | |
872 | |
| 890 | my $qcode = $code; |
873 | my $qcode = $code; |
| 891 | $qcode =~ s/"/‟/g; # not allowed in #line filenames |
874 | $qcode =~ s/"/‟/g; # not allowed in #line filenames |
| … | |
… | |
| 913 | } |
896 | } |
| 914 | |
897 | |
| 915 | wantarray ? @res : $res[0] |
898 | wantarray ? @res : $res[0] |
| 916 | } |
899 | } |
| 917 | |
900 | |
|
|
901 | =item cf::register_script_function $function => $cb |
|
|
902 | |
|
|
903 | Register a function that can be called from within map/npc scripts. The |
|
|
904 | function should be reasonably secure and should be put into a package name |
|
|
905 | like the extension. |
|
|
906 | |
|
|
907 | Example: register a function that gets called whenever a map script calls |
|
|
908 | C<rent::overview>, as used by the C<rent> extension. |
|
|
909 | |
|
|
910 | cf::register_script_function "rent::overview" => sub { |
|
|
911 | ... |
|
|
912 | }; |
|
|
913 | |
|
|
914 | =cut |
|
|
915 | |
| 918 | sub register_script_function { |
916 | sub register_script_function { |
| 919 | my ($fun, $cb) = @_; |
917 | my ($fun, $cb) = @_; |
| 920 | |
918 | |
| 921 | no strict 'refs'; |
919 | no strict 'refs'; |
| 922 | *{"safe::$fun"} = $safe_hole->wrap ($cb); |
920 | *{"safe::$fun"} = $safe_hole->wrap ($cb); |
| 923 | } |
921 | } |
| 924 | |
922 | |
|
|
923 | =back |
|
|
924 | |
|
|
925 | =cut |
|
|
926 | |
|
|
927 | ############################################################################# |
|
|
928 | |
|
|
929 | =head2 EXTENSION DATABASE SUPPORT |
|
|
930 | |
|
|
931 | Crossfire maintains a very simple database for extension use. It can |
|
|
932 | currently store anything that can be serialised using Storable, which |
|
|
933 | excludes objects. |
|
|
934 | |
|
|
935 | The parameter C<$family> should best start with the name of the extension |
|
|
936 | using it, it should be unique. |
|
|
937 | |
|
|
938 | =over 4 |
|
|
939 | |
|
|
940 | =item $hashref = cf::db_get $family |
|
|
941 | |
|
|
942 | Return a hashref for use by the extension C<$family>, which can be |
|
|
943 | modified. After modifications, you have to call C<cf::db_dirty> or |
|
|
944 | C<cf::db_sync>. |
|
|
945 | |
|
|
946 | =item $value = cf::db_get $family => $key |
|
|
947 | |
|
|
948 | Returns a single value from the database |
|
|
949 | |
|
|
950 | =item cf::db_put $family => $hashref |
|
|
951 | |
|
|
952 | Stores the given family hashref into the database. Updates are delayed, if |
|
|
953 | you want the data to be synced to disk immediately, use C<cf::db_sync>. |
|
|
954 | |
|
|
955 | =item cf::db_put $family => $key => $value |
|
|
956 | |
|
|
957 | Stores the given C<$value> in the family hash. Updates are delayed, if you |
|
|
958 | want the data to be synced to disk immediately, use C<cf::db_sync>. |
|
|
959 | |
|
|
960 | =item cf::db_dirty |
|
|
961 | |
|
|
962 | Marks the database as dirty, to be updated at a later time. |
|
|
963 | |
|
|
964 | =item cf::db_sync |
|
|
965 | |
|
|
966 | Immediately write the database to disk I<if it is dirty>. |
|
|
967 | |
|
|
968 | =cut |
|
|
969 | |
|
|
970 | { |
|
|
971 | my $db; |
|
|
972 | my $path = cf::localdir . "/database.pst"; |
|
|
973 | |
|
|
974 | sub db_load() { |
|
|
975 | warn "loading database $path\n";#d# remove later |
|
|
976 | $db = stat $path ? Storable::retrieve $path : { }; |
|
|
977 | } |
|
|
978 | |
|
|
979 | my $pid; |
|
|
980 | |
|
|
981 | sub db_save() { |
|
|
982 | warn "saving database $path\n";#d# remove later |
|
|
983 | waitpid $pid, 0 if $pid; |
|
|
984 | if (0 == ($pid = fork)) { |
|
|
985 | $db->{_meta}{version} = 1; |
|
|
986 | Storable::nstore $db, "$path~"; |
|
|
987 | rename "$path~", $path; |
|
|
988 | cf::_exit 0 if defined $pid; |
|
|
989 | } |
|
|
990 | } |
|
|
991 | |
|
|
992 | my $dirty; |
|
|
993 | |
|
|
994 | sub db_sync() { |
|
|
995 | db_save if $dirty; |
|
|
996 | undef $dirty; |
|
|
997 | } |
|
|
998 | |
|
|
999 | my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub { |
|
|
1000 | db_sync; |
|
|
1001 | }); |
|
|
1002 | |
|
|
1003 | sub db_dirty() { |
|
|
1004 | $dirty = 1; |
|
|
1005 | $idle->start; |
|
|
1006 | } |
|
|
1007 | |
|
|
1008 | sub db_get($;$) { |
|
|
1009 | @_ >= 2 |
|
|
1010 | ? $db->{$_[0]}{$_[1]} |
|
|
1011 | : ($db->{$_[0]} ||= { }) |
|
|
1012 | } |
|
|
1013 | |
|
|
1014 | sub db_put($$;$) { |
|
|
1015 | if (@_ >= 3) { |
|
|
1016 | $db->{$_[0]}{$_[1]} = $_[2]; |
|
|
1017 | } else { |
|
|
1018 | $db->{$_[0]} = $_[1]; |
|
|
1019 | } |
|
|
1020 | db_dirty; |
|
|
1021 | } |
|
|
1022 | |
|
|
1023 | attach_global |
|
|
1024 | prio => 10000, |
|
|
1025 | on_cleanup => sub { |
|
|
1026 | db_sync; |
|
|
1027 | }, |
|
|
1028 | ; |
|
|
1029 | } |
|
|
1030 | |
| 925 | ############################################################################# |
1031 | ############################################################################# |
| 926 | # the server's main() |
1032 | # the server's main() |
| 927 | |
1033 | |
|
|
1034 | sub cfg_load { |
|
|
1035 | open my $fh, "<:utf8", cf::confdir . "/config" |
|
|
1036 | or return; |
|
|
1037 | |
|
|
1038 | local $/; |
|
|
1039 | *CFG = YAML::Syck::Load <$fh>; |
|
|
1040 | |
|
|
1041 | use Data::Dumper; warn Dumper \%CFG; |
|
|
1042 | } |
|
|
1043 | |
| 928 | sub main { |
1044 | sub main { |
|
|
1045 | cfg_load; |
|
|
1046 | db_load; |
|
|
1047 | load_extensions; |
| 929 | Event::loop; |
1048 | Event::loop; |
| 930 | } |
1049 | } |
| 931 | |
1050 | |
| 932 | ############################################################################# |
1051 | ############################################################################# |
| 933 | # initialisation |
1052 | # initialisation |
| 934 | |
1053 | |
|
|
1054 | sub _perl_reload(&) { |
|
|
1055 | my ($msg) = @_; |
|
|
1056 | |
|
|
1057 | $msg->("reloading..."); |
|
|
1058 | |
|
|
1059 | eval { |
|
|
1060 | # cancel all watchers |
|
|
1061 | $_->cancel for Event::all_watchers; |
|
|
1062 | |
|
|
1063 | # unload all extensions |
|
|
1064 | for (@exts) { |
|
|
1065 | $msg->("unloading <$_>"); |
|
|
1066 | unload_extension $_; |
|
|
1067 | } |
|
|
1068 | |
|
|
1069 | # unload all modules loaded from $LIBDIR |
|
|
1070 | while (my ($k, $v) = each %INC) { |
|
|
1071 | next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
|
|
1072 | |
|
|
1073 | $msg->("removing <$k>"); |
|
|
1074 | delete $INC{$k}; |
|
|
1075 | |
|
|
1076 | $k =~ s/\.pm$//; |
|
|
1077 | $k =~ s/\//::/g; |
|
|
1078 | |
|
|
1079 | if (my $cb = $k->can ("unload_module")) { |
|
|
1080 | $cb->(); |
|
|
1081 | } |
|
|
1082 | |
|
|
1083 | Symbol::delete_package $k; |
|
|
1084 | } |
|
|
1085 | |
|
|
1086 | # sync database to disk |
|
|
1087 | cf::db_sync; |
|
|
1088 | |
|
|
1089 | # get rid of safe::, as good as possible |
|
|
1090 | Symbol::delete_package "safe::$_" |
|
|
1091 | for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region); |
|
|
1092 | |
|
|
1093 | # remove register_script_function callbacks |
|
|
1094 | # TODO |
|
|
1095 | |
|
|
1096 | # unload cf.pm "a bit" |
|
|
1097 | delete $INC{"cf.pm"}; |
|
|
1098 | |
|
|
1099 | # don't, removes xs symbols, too, |
|
|
1100 | # and global variables created in xs |
|
|
1101 | #Symbol::delete_package __PACKAGE__; |
|
|
1102 | |
|
|
1103 | # reload cf.pm |
|
|
1104 | $msg->("reloading cf.pm"); |
|
|
1105 | require cf; |
|
|
1106 | |
|
|
1107 | # load config and database again |
|
|
1108 | cf::cfg_load; |
|
|
1109 | cf::db_load; |
|
|
1110 | |
|
|
1111 | # load extensions |
|
|
1112 | $msg->("load extensions"); |
|
|
1113 | cf::load_extensions; |
|
|
1114 | |
|
|
1115 | # reattach attachments to objects |
|
|
1116 | $msg->("reattach"); |
|
|
1117 | _global_reattach; |
|
|
1118 | }; |
|
|
1119 | $msg->($@) if $@; |
|
|
1120 | |
|
|
1121 | $msg->("reloaded"); |
|
|
1122 | }; |
|
|
1123 | |
|
|
1124 | sub perl_reload() { |
|
|
1125 | _perl_reload { |
|
|
1126 | warn $_[0]; |
|
|
1127 | print "$_[0]\n"; |
|
|
1128 | }; |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | register_command "perl-reload", 0, sub { |
|
|
1132 | my ($who, $arg) = @_; |
|
|
1133 | |
|
|
1134 | if ($who->flag (FLAG_WIZ)) { |
|
|
1135 | _perl_reload { |
|
|
1136 | warn $_[0]; |
|
|
1137 | $who->message ($_[0]); |
|
|
1138 | }; |
|
|
1139 | } |
|
|
1140 | }; |
|
|
1141 | |
| 935 | register "<global>", __PACKAGE__; |
1142 | register "<global>", __PACKAGE__; |
| 936 | |
1143 | |
| 937 | unshift @INC, $LIBDIR; |
1144 | unshift @INC, $LIBDIR; |
| 938 | |
|
|
| 939 | load_extensions; |
|
|
| 940 | |
1145 | |
| 941 | $TICK_WATCHER = Event->timer ( |
1146 | $TICK_WATCHER = Event->timer ( |
| 942 | prio => 1, |
1147 | prio => 1, |
| 943 | at => $NEXT_TICK || 1, |
1148 | at => $NEXT_TICK || 1, |
| 944 | cb => sub { |
1149 | cb => sub { |
| … | |
… | |
| 953 | $TICK_WATCHER->at ($NEXT_TICK); |
1158 | $TICK_WATCHER->at ($NEXT_TICK); |
| 954 | $TICK_WATCHER->start; |
1159 | $TICK_WATCHER->start; |
| 955 | }, |
1160 | }, |
| 956 | ); |
1161 | ); |
| 957 | |
1162 | |
| 958 | _reload_2; |
|
|
| 959 | |
|
|
| 960 | 1 |
1163 | 1 |
| 961 | |
1164 | |
