| 1 |
package cf; |
| 2 |
|
| 3 |
use Symbol; |
| 4 |
use List::Util; |
| 5 |
use Storable; |
| 6 |
use Opcode; |
| 7 |
use Safe; |
| 8 |
use Safe::Hole; |
| 9 |
|
| 10 |
use Event; |
| 11 |
$Event::Eval = 1; # no idea why this is required, but it is |
| 12 |
|
| 13 |
use strict; |
| 14 |
|
| 15 |
our %COMMAND; |
| 16 |
our @EVENT; |
| 17 |
our %PROP_TYPE; |
| 18 |
our %PROP_IDX; |
| 19 |
|
| 20 |
BEGIN { |
| 21 |
@EVENT = map lc, @EVENT; |
| 22 |
|
| 23 |
*CORE::GLOBAL::warn = sub { |
| 24 |
my $msg = join "", @_; |
| 25 |
$msg .= "\n" |
| 26 |
unless $msg =~ /\n$/; |
| 27 |
|
| 28 |
print STDERR "cfperl: $msg"; |
| 29 |
LOG llevError, "cfperl: $msg"; |
| 30 |
}; |
| 31 |
} |
| 32 |
|
| 33 |
my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply! |
| 34 |
|
| 35 |
# generate property mutators |
| 36 |
sub prop_gen { |
| 37 |
my ($prefix, $class) = @_; |
| 38 |
|
| 39 |
no strict 'refs'; |
| 40 |
|
| 41 |
for my $prop (keys %PROP_TYPE) { |
| 42 |
$prop =~ /^\Q$prefix\E_(.*$)/ or next; |
| 43 |
my $sub = lc $1; |
| 44 |
|
| 45 |
my $type = $PROP_TYPE{$prop}; |
| 46 |
my $idx = $PROP_IDX {$prop}; |
| 47 |
|
| 48 |
*{"$class\::get_$sub"} = *{"$class\::$sub"} = sub { |
| 49 |
$_[0]->get_property ($type, $idx) |
| 50 |
}; |
| 51 |
|
| 52 |
*{"$class\::set_$sub"} = sub { |
| 53 |
$_[0]->set_property ($type, $idx, $_[1]); |
| 54 |
} unless $ignore_set{$prop}; |
| 55 |
} |
| 56 |
} |
| 57 |
|
| 58 |
# auto-generate most of the API |
| 59 |
|
| 60 |
prop_gen OBJECT_PROP => "cf::object"; |
| 61 |
# CFAPI_OBJECT_ANIMATION? |
| 62 |
prop_gen PLAYER_PROP => "cf::object::player"; |
| 63 |
|
| 64 |
prop_gen MAP_PROP => "cf::map"; |
| 65 |
prop_gen ARCH_PROP => "cf::arch"; |
| 66 |
|
| 67 |
# guessed hierarchies |
| 68 |
|
| 69 |
@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
| 70 |
@ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object'; |
| 71 |
|
| 72 |
# we bless all objects into derived classes to force a method lookup |
| 73 |
# within the Safe compartment. |
| 74 |
for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region)) { |
| 75 |
no strict 'refs'; |
| 76 |
@{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; |
| 77 |
} |
| 78 |
|
| 79 |
$Event::DIED = sub { |
| 80 |
warn "error in event callback: @_"; |
| 81 |
}; |
| 82 |
|
| 83 |
my %ext_pkg; |
| 84 |
my @exts; |
| 85 |
my @hook; |
| 86 |
my %command; |
| 87 |
my %extcmd; |
| 88 |
|
| 89 |
sub inject_event { |
| 90 |
my $extension = shift; |
| 91 |
my $event_code = shift; |
| 92 |
|
| 93 |
my $cb = $hook[$event_code]{$extension} |
| 94 |
or return; |
| 95 |
|
| 96 |
&$cb |
| 97 |
} |
| 98 |
|
| 99 |
sub inject_global_event { |
| 100 |
my $event = shift; |
| 101 |
|
| 102 |
my $cb = $hook[$event] |
| 103 |
or return; |
| 104 |
|
| 105 |
List::Util::max map &$_, values %$cb |
| 106 |
} |
| 107 |
|
| 108 |
sub inject_command { |
| 109 |
my ($name, $obj, $params) = @_; |
| 110 |
|
| 111 |
for my $cmd (@{ $command{$name} }) { |
| 112 |
$cmd->[1]->($obj, $params); |
| 113 |
} |
| 114 |
|
| 115 |
-1 |
| 116 |
} |
| 117 |
|
| 118 |
sub register_command { |
| 119 |
my ($name, $time, $cb) = @_; |
| 120 |
|
| 121 |
my $caller = caller; |
| 122 |
#warn "registering command '$name/$time' to '$caller'"; |
| 123 |
|
| 124 |
push @{ $command{$name} }, [$time, $cb, $caller]; |
| 125 |
$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; |
| 126 |
} |
| 127 |
|
| 128 |
sub register_extcmd { |
| 129 |
my ($name, $cb) = @_; |
| 130 |
|
| 131 |
my $caller = caller; |
| 132 |
#warn "registering extcmd '$name' to '$caller'"; |
| 133 |
|
| 134 |
$extcmd{$name} = [$cb, $caller]; |
| 135 |
} |
| 136 |
|
| 137 |
sub register { |
| 138 |
my ($base, $pkg) = @_; |
| 139 |
|
| 140 |
for my $idx (0 .. $#EVENT) { |
| 141 |
if (my $ref = $pkg->can ("on_$EVENT[$idx]")) { |
| 142 |
#warn "registering $EVENT[$idx] hook to '$pkg'\n"; |
| 143 |
$hook[$idx]{$base} = $ref; |
| 144 |
} |
| 145 |
} |
| 146 |
} |
| 147 |
|
| 148 |
sub load_extension { |
| 149 |
my ($path) = @_; |
| 150 |
|
| 151 |
$path =~ /([^\/\\]+)\.ext$/ or die "$path"; |
| 152 |
my $base = $1; |
| 153 |
my $pkg = $1; |
| 154 |
$pkg =~ s/[^[:word:]]/_/g; |
| 155 |
$pkg = "cf::ext::$pkg"; |
| 156 |
|
| 157 |
warn "loading '$path' into '$pkg'\n"; |
| 158 |
|
| 159 |
open my $fh, "<:utf8", $path |
| 160 |
or die "$path: $!"; |
| 161 |
|
| 162 |
my $source = |
| 163 |
"package $pkg; use strict; use utf8;\n" |
| 164 |
. "#line 1 \"$path\"\n{\n" |
| 165 |
. (do { local $/; <$fh> }) |
| 166 |
. "\n};\n1"; |
| 167 |
|
| 168 |
eval $source |
| 169 |
or die "$path: $@"; |
| 170 |
|
| 171 |
push @exts, $pkg; |
| 172 |
$ext_pkg{$base} = $pkg; |
| 173 |
|
| 174 |
# no strict 'refs'; |
| 175 |
# @{"$pkg\::ISA"} = ext::; |
| 176 |
|
| 177 |
register $base, $pkg; |
| 178 |
} |
| 179 |
|
| 180 |
sub unload_extension { |
| 181 |
my ($pkg) = @_; |
| 182 |
|
| 183 |
warn "removing extension $pkg\n"; |
| 184 |
|
| 185 |
if (my $cb = $pkg->can ("on_unload")) { |
| 186 |
$cb->($pkg); |
| 187 |
} |
| 188 |
|
| 189 |
# remove hooks |
| 190 |
for my $idx (0 .. $#EVENT) { |
| 191 |
delete $hook[$idx]{$pkg}; |
| 192 |
} |
| 193 |
|
| 194 |
# remove commands |
| 195 |
for my $name (keys %command) { |
| 196 |
my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; |
| 197 |
|
| 198 |
if (@cb) { |
| 199 |
$command{$name} = \@cb; |
| 200 |
$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb; |
| 201 |
} else { |
| 202 |
delete $command{$name}; |
| 203 |
delete $COMMAND{"$name\000"}; |
| 204 |
} |
| 205 |
} |
| 206 |
|
| 207 |
# remove extcmds |
| 208 |
for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) { |
| 209 |
delete $extcmd{$name}; |
| 210 |
} |
| 211 |
|
| 212 |
Symbol::delete_package $pkg; |
| 213 |
} |
| 214 |
|
| 215 |
sub load_extensions { |
| 216 |
my $LIBDIR = maps_directory "perl"; |
| 217 |
|
| 218 |
for my $ext (<$LIBDIR/*.ext>) { |
| 219 |
next unless -r $ext; |
| 220 |
eval { |
| 221 |
load_extension $ext; |
| 222 |
1 |
| 223 |
} or warn "$ext not loaded: $@"; |
| 224 |
} |
| 225 |
} |
| 226 |
|
| 227 |
register_command "perl-reload", 0, sub { |
| 228 |
my ($who, $arg) = @_; |
| 229 |
|
| 230 |
if ($who->flag (FLAG_WIZ)) { |
| 231 |
$who->message ("reloading..."); |
| 232 |
|
| 233 |
warn "reloading...\n"; |
| 234 |
eval { |
| 235 |
$_->cancel for Event::all_watchers; |
| 236 |
|
| 237 |
unload_extension $_ for @exts; |
| 238 |
delete $INC{"cf.pm"}; |
| 239 |
|
| 240 |
# don't, removes xs symbols, too |
| 241 |
#Symbol::delete_package __PACKAGE__; |
| 242 |
|
| 243 |
require cf; |
| 244 |
}; |
| 245 |
warn $@ if $@; |
| 246 |
$who->message ($@) if $@; |
| 247 |
warn "reloaded\n"; |
| 248 |
|
| 249 |
$who->message ("reloaded"); |
| 250 |
} else { |
| 251 |
$who->message ("Intruder Alert!"); |
| 252 |
} |
| 253 |
}; |
| 254 |
|
| 255 |
############################################################################# |
| 256 |
# extcmd framework, basically convert ext <id> <pkg> arg1 args |
| 257 |
# into pkg::->on_extcmd_arg1 (...) while shortcutting a few |
| 258 |
|
| 259 |
sub on_extcmd { |
| 260 |
my ($pl, $buf) = @_; |
| 261 |
|
| 262 |
my ($type) = $buf =~ s/^(\S+) // ? $1 : ""; |
| 263 |
|
| 264 |
$extcmd{$type}[0]->($pl, $buf) |
| 265 |
if $extcmd{$type}; |
| 266 |
} |
| 267 |
|
| 268 |
############################################################################# |
| 269 |
# load/save/clean perl data associated with a map |
| 270 |
|
| 271 |
*on_mapclean = sub { |
| 272 |
my ($map) = @_; |
| 273 |
|
| 274 |
my $path = $map->tmpname; |
| 275 |
defined $path or return; |
| 276 |
|
| 277 |
unlink "$path.cfperl"; |
| 278 |
}; |
| 279 |
|
| 280 |
*on_mapin = |
| 281 |
*on_mapload = sub { |
| 282 |
my ($map) = @_; |
| 283 |
|
| 284 |
my $path = $map->tmpname; |
| 285 |
$path = $map->path unless defined $path; |
| 286 |
|
| 287 |
open my $fh, "<:raw", "$path.cfperl" |
| 288 |
or return; # no perl data |
| 289 |
|
| 290 |
my $data = Storable::thaw do { local $/; <$fh> }; |
| 291 |
|
| 292 |
$data->{version} <= 1 |
| 293 |
or return; # too new |
| 294 |
|
| 295 |
$map->_set_obs ($data->{obs}); |
| 296 |
}; |
| 297 |
|
| 298 |
*on_mapout = sub { |
| 299 |
my ($map) = @_; |
| 300 |
|
| 301 |
my $path = $map->tmpname; |
| 302 |
$path = $map->path unless defined $path; |
| 303 |
|
| 304 |
my $obs = $map->_get_obs; |
| 305 |
|
| 306 |
if (defined $obs) { |
| 307 |
open my $fh, ">:raw", "$path.cfperl" |
| 308 |
or die "$path.cfperl: $!"; |
| 309 |
|
| 310 |
stat $path; |
| 311 |
|
| 312 |
print $fh Storable::nfreeze { |
| 313 |
size => (stat _)[7], |
| 314 |
time => (stat _)[9], |
| 315 |
version => 1, |
| 316 |
obs => $obs, |
| 317 |
}; |
| 318 |
|
| 319 |
chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g* |
| 320 |
} else { |
| 321 |
unlink "$path.cfperl"; |
| 322 |
} |
| 323 |
}; |
| 324 |
|
| 325 |
############################################################################# |
| 326 |
# load/save perl data associated with player->ob objects |
| 327 |
|
| 328 |
*on_player_load = sub { |
| 329 |
my ($ob, $path) = @_; |
| 330 |
|
| 331 |
for my $o ($ob, $ob->inv) { |
| 332 |
if (my $value = $o->get_ob_key_value ("_perl_data")) { |
| 333 |
$o->set_ob_key_value ("_perl_data"); |
| 334 |
|
| 335 |
%$o = %{ Storable::thaw pack "H*", $value }; |
| 336 |
} |
| 337 |
} |
| 338 |
}; |
| 339 |
|
| 340 |
*on_player_save = sub { |
| 341 |
my ($ob, $path) = @_; |
| 342 |
|
| 343 |
$_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_) |
| 344 |
for grep %$_, $ob, $ob->inv; |
| 345 |
}; |
| 346 |
|
| 347 |
############################################################################# |
| 348 |
# core extensions - in perl |
| 349 |
|
| 350 |
=item cf::player::exists $login |
| 351 |
|
| 352 |
Returns true when the given account exists. |
| 353 |
|
| 354 |
=cut |
| 355 |
|
| 356 |
sub cf::player::exists($) { |
| 357 |
cf::player::find $_[0] |
| 358 |
or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
| 359 |
} |
| 360 |
|
| 361 |
# rough implementation of a future "reply" method that works |
| 362 |
# with dialog boxes. |
| 363 |
sub cf::object::player::reply($$$;$) { |
| 364 |
my ($self, $npc, $msg, $flags) = @_; |
| 365 |
|
| 366 |
$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; |
| 367 |
|
| 368 |
if ($self->{record_replies}) { |
| 369 |
push @{ $self->{record_replies} }, [$npc, $msg, $flags]; |
| 370 |
} else { |
| 371 |
$msg = $npc->name . " says: $msg" if $npc; |
| 372 |
$self->message ($msg, $flags); |
| 373 |
} |
| 374 |
} |
| 375 |
|
| 376 |
############################################################################# |
| 377 |
# map scripting support |
| 378 |
|
| 379 |
our $safe = new Safe "ext"; |
| 380 |
our $safe_hole = new Safe::Hole; |
| 381 |
|
| 382 |
$SIG{FPE} = 'IGNORE'; |
| 383 |
|
| 384 |
$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
| 385 |
|
| 386 |
# here we export the classes and methods available to script code |
| 387 |
|
| 388 |
for ( |
| 389 |
["cf::object" => qw(contr)], |
| 390 |
["cf::object::player" => qw(player)], |
| 391 |
["cf::player" => qw(peaceful)], |
| 392 |
) { |
| 393 |
no strict 'refs'; |
| 394 |
my ($pkg, @funs) = @$_; |
| 395 |
*{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
| 396 |
for @funs; |
| 397 |
} |
| 398 |
|
| 399 |
sub safe_eval($;@) { |
| 400 |
my ($code, %vars) = @_; |
| 401 |
|
| 402 |
my $qcode = $code; |
| 403 |
$qcode =~ s/"/‟/g; # not allowed in #line filenames |
| 404 |
$qcode =~ s/\n/\\n/g; |
| 405 |
|
| 406 |
local $_; |
| 407 |
local @ext::cf::_safe_eval_args = values %vars; |
| 408 |
|
| 409 |
$code = |
| 410 |
"do {\n" |
| 411 |
. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" |
| 412 |
. "#line 0 \"{$qcode}\"\n" |
| 413 |
. $code |
| 414 |
. "\n}" |
| 415 |
; |
| 416 |
|
| 417 |
sub_generation_inc; |
| 418 |
my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code); |
| 419 |
sub_generation_inc; |
| 420 |
|
| 421 |
wantarray ? @res : $res[0] |
| 422 |
} |
| 423 |
|
| 424 |
sub register_script_function { |
| 425 |
my ($fun, $cb) = @_; |
| 426 |
|
| 427 |
no strict 'refs'; |
| 428 |
*{"ext::$fun"} = $safe_hole->wrap ($cb); |
| 429 |
} |
| 430 |
|
| 431 |
############################################################################# |
| 432 |
# initialisation |
| 433 |
|
| 434 |
register "<global>", __PACKAGE__; |
| 435 |
|
| 436 |
unshift @INC, maps_directory "perl"; |
| 437 |
|
| 438 |
load_extensions; |
| 439 |
|
| 440 |
1 |
| 441 |
|
