1 | package cf; |
1 | package cf; |
2 | |
2 | |
3 | use Symbol; |
3 | use Symbol; |
4 | use List::Util; |
4 | use List::Util; |
5 | use Storable; |
5 | use Storable; |
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6 | use Opcode; |
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7 | use Safe; |
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8 | use Safe::Hole; |
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9 | |
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10 | use Time::HiRes; |
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11 | use Event; |
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12 | $Event::Eval = 1; # no idea why this is required, but it is |
6 | |
13 | |
7 | use strict; |
14 | use strict; |
8 | |
15 | |
9 | our %COMMAND; |
16 | our %COMMAND; |
10 | our @EVENT; |
17 | our @EVENT; |
11 | our %PROP_TYPE; |
18 | our %PROP_TYPE; |
12 | our %PROP_IDX; |
19 | our %PROP_IDX; |
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20 | our $LIBDIR = maps_directory "perl"; |
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21 | |
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22 | our $TICK = MAX_TIME * 1e-6; |
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23 | our $TICK_WATCHER; |
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24 | our $NEXT_TICK; |
13 | |
25 | |
14 | BEGIN { |
26 | BEGIN { |
15 | @EVENT = map lc, @EVENT; |
27 | @EVENT = map lc, @EVENT; |
16 | |
28 | |
17 | *CORE::GLOBAL::warn = sub { |
29 | *CORE::GLOBAL::warn = sub { |
… | |
… | |
58 | prop_gen MAP_PROP => "cf::map"; |
70 | prop_gen MAP_PROP => "cf::map"; |
59 | prop_gen ARCH_PROP => "cf::arch"; |
71 | prop_gen ARCH_PROP => "cf::arch"; |
60 | |
72 | |
61 | # guessed hierarchies |
73 | # guessed hierarchies |
62 | |
74 | |
63 | @cf::object::player::ISA = 'cf::object'; |
75 | @ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
64 | @cf::object::map::ISA = 'cf::object'; |
76 | @ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object'; |
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77 | |
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78 | # we bless all objects into derived classes to force a method lookup |
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79 | # within the Safe compartment. |
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80 | for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region cf::arch)) { |
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81 | no strict 'refs'; |
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82 | @{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; |
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83 | } |
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84 | |
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85 | $Event::DIED = sub { |
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86 | warn "error in event callback: @_"; |
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87 | }; |
65 | |
88 | |
66 | my %ext_pkg; |
89 | my %ext_pkg; |
67 | my @exts; |
90 | my @exts; |
68 | my @hook; |
91 | my @hook; |
69 | my %command; |
92 | my %command; |
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93 | my %extcmd; |
70 | |
94 | |
71 | sub inject_event { |
95 | sub inject_event { |
72 | my ($data) = @_; |
96 | my $extension = shift; |
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97 | my $event_code = shift; |
73 | |
98 | |
74 | my $cb = $hook[$data->{event_code}]{$data->{extension}} |
99 | my $cb = $hook[$event_code]{$extension} |
75 | or return; |
100 | or return; |
76 | |
101 | |
77 | $cb->($data) |
102 | &$cb |
78 | } |
103 | } |
79 | |
104 | |
80 | sub inject_global_event { |
105 | sub inject_global_event { |
81 | my ($data) = @_; |
106 | my $event = shift; |
82 | |
107 | |
83 | my $cb = $hook[$data->{event_code}] |
108 | my $cb = $hook[$event] |
84 | or return; |
109 | or return; |
85 | |
110 | |
86 | $_->($data) for values %$cb; |
111 | List::Util::max map &$_, values %$cb |
87 | |
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88 | () |
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89 | } |
112 | } |
90 | |
113 | |
91 | sub inject_command { |
114 | sub inject_command { |
92 | my ($name, $obj, $params) = @_; |
115 | my ($name, $obj, $params) = @_; |
93 | |
116 | |
… | |
… | |
100 | |
123 | |
101 | sub register_command { |
124 | sub register_command { |
102 | my ($name, $time, $cb) = @_; |
125 | my ($name, $time, $cb) = @_; |
103 | |
126 | |
104 | my $caller = caller; |
127 | my $caller = caller; |
105 | |
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106 | warn "registering command '$name/$time' to '$caller'"; |
128 | #warn "registering command '$name/$time' to '$caller'"; |
107 | |
129 | |
108 | push @{ $command{$name} }, [$time, $cb, $caller]; |
130 | push @{ $command{$name} }, [$time, $cb, $caller]; |
109 | $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; |
131 | $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; |
110 | } |
132 | } |
111 | |
133 | |
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134 | sub register_extcmd { |
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135 | my ($name, $cb) = @_; |
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136 | |
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137 | my $caller = caller; |
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138 | #warn "registering extcmd '$name' to '$caller'"; |
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139 | |
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140 | $extcmd{$name} = [$cb, $caller]; |
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141 | } |
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142 | |
112 | sub register { |
143 | sub register { |
113 | my ($base, $pkg) = @_; |
144 | my ($base, $pkg) = @_; |
114 | |
145 | |
115 | for my $idx (0 .. $#EVENT) { |
146 | for my $idx (0 .. $#EVENT) { |
116 | if (my $ref = $pkg->can ("on_$EVENT[$idx]")) { |
147 | if (my $ref = $pkg->can ("on_$EVENT[$idx]")) { |
117 | warn "registering $EVENT[$idx] hook to '$pkg'\n"; |
148 | #warn "registering $EVENT[$idx] hook to '$pkg'\n"; |
118 | $hook[$idx]{$base} = $ref; |
149 | $hook[$idx]{$base} = $ref; |
119 | } |
150 | } |
120 | } |
151 | } |
121 | } |
152 | } |
122 | |
153 | |
… | |
… | |
145 | |
176 | |
146 | push @exts, $pkg; |
177 | push @exts, $pkg; |
147 | $ext_pkg{$base} = $pkg; |
178 | $ext_pkg{$base} = $pkg; |
148 | |
179 | |
149 | # no strict 'refs'; |
180 | # no strict 'refs'; |
150 | # @{"$pkg\::ISA"} = cf::ext::; |
181 | # @{"$pkg\::ISA"} = ext::; |
151 | |
182 | |
152 | register $base, $pkg; |
183 | register $base, $pkg; |
153 | } |
184 | } |
154 | |
185 | |
155 | sub unload_extension { |
186 | sub unload_extension { |
… | |
… | |
173 | delete $command{$name}; |
204 | delete $command{$name}; |
174 | delete $COMMAND{"$name\000"}; |
205 | delete $COMMAND{"$name\000"}; |
175 | } |
206 | } |
176 | } |
207 | } |
177 | |
208 | |
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209 | # remove extcmds |
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210 | for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) { |
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211 | delete $extcmd{$name}; |
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212 | } |
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213 | |
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214 | if (my $cb = $pkg->can ("on_unload")) { |
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215 | eval { |
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216 | $cb->($pkg); |
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217 | 1 |
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218 | } or warn "$pkg unloaded, but with errors: $@"; |
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219 | } |
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220 | |
178 | Symbol::delete_package $pkg; |
221 | Symbol::delete_package $pkg; |
179 | } |
222 | } |
180 | |
223 | |
181 | sub load_extensions { |
224 | sub load_extensions { |
182 | my $LIBDIR = maps_directory "perl"; |
225 | my $LIBDIR = maps_directory "perl"; |
… | |
… | |
196 | if ($who->flag (FLAG_WIZ)) { |
239 | if ($who->flag (FLAG_WIZ)) { |
197 | $who->message ("reloading..."); |
240 | $who->message ("reloading..."); |
198 | |
241 | |
199 | warn "reloading...\n"; |
242 | warn "reloading...\n"; |
200 | eval { |
243 | eval { |
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244 | # 1. cancel all watchers |
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245 | $_->cancel for Event::all_watchers; |
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246 | |
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247 | # 2. unload all extensions |
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248 | for (@exts) { |
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249 | $who->message ("unloading <$_>"); |
201 | unload_extension $_ for @exts; |
250 | unload_extension $_; |
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251 | } |
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252 | |
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253 | # 3. unload all modules loaded from $LIBDIR |
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254 | while (my ($k, $v) = each %INC) { |
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255 | next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
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256 | |
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257 | $who->message ("removing <$k>"); |
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258 | delete $INC{$k}; |
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259 | |
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260 | $k =~ s/\.pm$//; |
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261 | $k =~ s/\//::/g; |
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262 | |
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263 | if (my $cb = $k->can ("unload_module")) { |
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264 | $cb->(); |
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265 | } |
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266 | |
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267 | Symbol::delete_package $k; |
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268 | } |
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269 | |
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270 | # 4. get rid of ext::, as good as possible |
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271 | Symbol::delete_package "ext::$_" |
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272 | for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region); |
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273 | |
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274 | # 5. remove register_script_function callbacks |
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275 | # TODO |
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276 | |
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277 | # 6. unload cf.pm "a bit" |
202 | delete $INC{"cf.pm"}; |
278 | delete $INC{"cf.pm"}; |
203 | |
279 | |
204 | # don't, removes xs symbols, too |
280 | # don't, removes xs symbols, too |
205 | #Symbol::delete_package $pkg; |
281 | #Symbol::delete_package __PACKAGE__; |
206 | |
282 | |
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283 | # 7. reload cf.pm |
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284 | $who->message ("reloading cf.pm"); |
207 | require cf; |
285 | require cf; |
208 | }; |
286 | }; |
209 | warn $@ if $@; |
287 | warn $@ if $@; |
210 | $who->message ($@) if $@; |
288 | $who->message ($@) if $@; |
211 | warn "reloaded\n"; |
289 | warn "reloaded\n"; |
… | |
… | |
215 | $who->message ("Intruder Alert!"); |
293 | $who->message ("Intruder Alert!"); |
216 | } |
294 | } |
217 | }; |
295 | }; |
218 | |
296 | |
219 | ############################################################################# |
297 | ############################################################################# |
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298 | # utility functions |
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299 | |
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300 | use JSON::Syck (); # TODO# replace by JSON::PC once working |
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301 | |
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302 | sub from_json($) { |
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303 | $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs |
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304 | JSON::Syck::Load $_[0] |
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305 | } |
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306 | |
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307 | sub to_json($) { |
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308 | $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs |
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309 | JSON::Syck::Dump $_[0] |
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310 | } |
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311 | |
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312 | ############################################################################# |
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313 | # extcmd framework, basically convert ext <msg> |
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314 | # into pkg::->on_extcmd_arg1 (...) while shortcutting a few |
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315 | |
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316 | sub on_extcmd { |
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317 | my ($pl, $buf) = @_; |
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318 | |
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319 | my $msg = eval { from_json $buf }; |
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320 | |
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321 | if (ref $msg) { |
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322 | if (my $cb = $extcmd{$msg->{msgtype}}) { |
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323 | if (my %reply = $cb->[0]->($pl, $msg)) { |
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324 | $pl->ext_reply ($msg->{msgid}, %reply); |
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325 | } |
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326 | } |
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327 | } else { |
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328 | warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; |
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329 | } |
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330 | |
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331 | 1 |
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332 | } |
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333 | |
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334 | ############################################################################# |
220 | # load/save/clean perl data associated with a map |
335 | # load/save/clean perl data associated with a map |
221 | |
336 | |
222 | *on_mapclean = sub { |
337 | *on_mapclean = sub { |
223 | my $map = shift->{map}; |
338 | my ($map) = @_; |
224 | |
339 | |
225 | my $path = $map->tmpname; |
340 | my $path = $map->tmpname; |
226 | defined $path or return; |
341 | defined $path or return; |
227 | |
342 | |
228 | unlink "$path.cfperl"; |
343 | unlink "$path.cfperl"; |
229 | }; |
344 | }; |
230 | |
345 | |
231 | *on_mapin = |
346 | *on_mapin = |
232 | *on_mapload = sub { |
347 | *on_mapload = sub { |
233 | my $map = shift->{map}; |
348 | my ($map) = @_; |
234 | |
349 | |
235 | my $path = $map->tmpname; |
350 | my $path = $map->tmpname; |
236 | $path = $map->path unless defined $path; |
351 | $path = $map->path unless defined $path; |
237 | |
352 | |
238 | open my $fh, "<:raw", "$path.cfperl" |
353 | open my $fh, "<:raw", "$path.cfperl" |
… | |
… | |
245 | |
360 | |
246 | $map->_set_obs ($data->{obs}); |
361 | $map->_set_obs ($data->{obs}); |
247 | }; |
362 | }; |
248 | |
363 | |
249 | *on_mapout = sub { |
364 | *on_mapout = sub { |
250 | my $map = shift->{map}; |
365 | my ($map) = @_; |
251 | |
366 | |
252 | my $path = $map->tmpname; |
367 | my $path = $map->tmpname; |
253 | $path = $map->path unless defined $path; |
368 | $path = $map->path unless defined $path; |
254 | |
369 | |
255 | my $obs = $map->_get_obs; |
370 | my $obs = $map->_get_obs; |
… | |
… | |
274 | }; |
389 | }; |
275 | |
390 | |
276 | ############################################################################# |
391 | ############################################################################# |
277 | # load/save perl data associated with player->ob objects |
392 | # load/save perl data associated with player->ob objects |
278 | |
393 | |
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394 | sub all_objects(@) { |
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395 | @_, map all_objects ($_->inv), @_ |
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396 | } |
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397 | |
279 | *on_player_load = sub { |
398 | *on_player_load = sub { |
280 | my ($event) = @_; |
399 | my ($ob, $path) = @_; |
281 | my $path = $event->{message}; |
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282 | my $ob = $event->{who}; |
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283 | |
400 | |
284 | open my $fh, "<:raw", "$path.cfperl" |
401 | for my $o (all_objects $ob) { |
285 | or return; # no perl data |
402 | if (my $value = $o->get_ob_key_value ("_perl_data")) { |
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403 | $o->set_ob_key_value ("_perl_data"); |
286 | |
404 | |
287 | my $data = Storable::thaw do { local $/; <$fh> }; |
405 | %$o = %{ Storable::thaw pack "H*", $value }; |
288 | |
406 | } |
289 | $data->{version} <= 1 |
407 | } |
290 | or return; # too new |
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291 | |
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292 | %$ob = %{$data->{ob}}; |
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293 | }; |
408 | }; |
294 | |
409 | |
295 | *on_player_save = sub { |
410 | *on_player_save = sub { |
296 | my ($event) = @_; |
411 | my ($ob, $path) = @_; |
297 | my $path = $event->{message}; |
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298 | my $ob = $event->{who}; |
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299 | |
412 | |
300 | if (keys %$ob) { |
413 | $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_) |
301 | open my $fh, ">:raw", "$path.cfperl" |
414 | for grep %$_, all_objects $ob; |
302 | or die "$path.cfperl: $!"; |
415 | }; |
303 | |
416 | |
304 | stat $path; |
417 | ############################################################################# |
|
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418 | # core extensions - in perl |
305 | |
419 | |
306 | print $fh Storable::nfreeze { |
420 | =item cf::player::exists $login |
307 | size => (stat _)[7], |
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308 | time => (stat _)[9], |
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309 | version => 1, |
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310 | ob => $ob, |
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311 | }; |
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312 | |
421 | |
313 | chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g* |
422 | Returns true when the given account exists. |
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423 | |
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424 | =cut |
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425 | |
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426 | sub cf::player::exists($) { |
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427 | cf::player::find $_[0] |
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428 | or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
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429 | } |
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430 | |
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431 | =item $player->reply ($npc, $msg[, $flags]) |
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432 | |
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433 | Sends a message to the player, as if the npc C<$npc> replied. C<$npc> |
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434 | can be C<undef>. Does the right thing when the player is currently in a |
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435 | dialogue with the given NPC character. |
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436 | |
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437 | =cut |
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438 | |
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439 | # rough implementation of a future "reply" method that works |
|
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440 | # with dialog boxes. |
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441 | sub cf::object::player::reply($$$;$) { |
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442 | my ($self, $npc, $msg, $flags) = @_; |
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443 | |
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444 | $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; |
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445 | |
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446 | if ($self->{record_replies}) { |
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447 | push @{ $self->{record_replies} }, [$npc, $msg, $flags]; |
314 | } else { |
448 | } else { |
315 | unlink "$path.cfperl"; |
449 | $msg = $npc->name . " says: $msg" if $npc; |
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450 | $self->message ($msg, $flags); |
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451 | } |
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452 | } |
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453 | |
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454 | =item $player->ext_reply ($msgid, $msgtype, %msg) |
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455 | |
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456 | Sends an ext reply to the player. |
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457 | |
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458 | =cut |
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459 | |
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460 | sub cf::player::ext_reply($$$%) { |
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461 | my ($self, $id, %msg) = @_; |
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462 | |
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463 | $msg{msgid} = $id; |
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464 | |
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465 | $self->send ("ext " . to_json \%msg); |
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466 | } |
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467 | |
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468 | ############################################################################# |
|
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469 | # map scripting support |
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470 | |
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471 | our $safe = new Safe "ext"; |
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472 | our $safe_hole = new Safe::Hole; |
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473 | |
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474 | $SIG{FPE} = 'IGNORE'; |
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475 | |
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476 | $safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
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477 | |
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478 | # here we export the classes and methods available to script code |
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479 | |
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480 | for ( |
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481 | ["cf::object" => qw(contr pay_amount pay_player)], |
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482 | ["cf::object::player" => qw(player)], |
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483 | ["cf::player" => qw(peaceful)], |
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484 | ) { |
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485 | no strict 'refs'; |
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486 | my ($pkg, @funs) = @$_; |
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487 | *{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
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488 | for @funs; |
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489 | } |
|
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490 | |
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491 | sub safe_eval($;@) { |
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492 | my ($code, %vars) = @_; |
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493 | |
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494 | my $qcode = $code; |
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495 | $qcode =~ s/"/‟/g; # not allowed in #line filenames |
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496 | $qcode =~ s/\n/\\n/g; |
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497 | |
|
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498 | local $_; |
|
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499 | local @ext::cf::_safe_eval_args = values %vars; |
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500 | |
|
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501 | $code = |
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502 | "do {\n" |
|
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503 | . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" |
|
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504 | . "#line 0 \"{$qcode}\"\n" |
|
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505 | . $code |
|
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506 | . "\n}" |
316 | } |
507 | ; |
317 | }; |
508 | |
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509 | sub_generation_inc; |
|
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510 | my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code); |
|
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511 | sub_generation_inc; |
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512 | |
|
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513 | wantarray ? @res : $res[0] |
|
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514 | } |
|
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515 | |
|
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516 | sub register_script_function { |
|
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517 | my ($fun, $cb) = @_; |
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518 | |
|
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519 | no strict 'refs'; |
|
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520 | *{"ext::$fun"} = $safe_hole->wrap ($cb); |
|
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521 | } |
|
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522 | |
|
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523 | ############################################################################# |
|
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524 | # the server's main() |
|
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525 | |
|
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526 | sub run { |
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527 | Event::loop; |
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528 | } |
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529 | |
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530 | ############################################################################# |
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531 | # initialisation |
318 | |
532 | |
319 | register "<global>", __PACKAGE__; |
533 | register "<global>", __PACKAGE__; |
320 | |
534 | |
|
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535 | unshift @INC, $LIBDIR; |
|
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536 | |
321 | load_extensions; |
537 | load_extensions; |
322 | |
538 | |
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539 | $TICK_WATCHER = Event->timer ( |
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540 | prio => 1, |
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541 | at => $NEXT_TICK || 1, |
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542 | cb => sub { |
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543 | cf::server_tick; # one server iteration |
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544 | |
|
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545 | my $NOW = Event::time; |
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546 | $NEXT_TICK += $TICK; |
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547 | |
|
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548 | # if we are delayed by > 0.25 second, skip ticks |
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549 | $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + .25; |
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550 | |
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551 | $TICK_WATCHER->at ($NEXT_TICK); |
|
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552 | $TICK_WATCHER->start; |
|
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553 | }, |
|
|
554 | ); |
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|
555 | |
323 | 1 |
556 | 1 |
324 | |
557 | |