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package cf; |
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use Symbol; |
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use List::Util; |
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1.6 |
use Storable; |
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use Opcode; |
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use Safe; |
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use Safe::Hole; |
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use IO::AIO (); |
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use YAML::Syck (); |
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use Time::HiRes; |
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use Event; |
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$Event::Eval = 1; # no idea why this is required, but it is |
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1.1 |
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# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? |
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$YAML::Syck::ImplicitUnicode = 1; |
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1.1 |
use strict; |
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our %COMMAND = (); |
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our %COMMAND_TIME = (); |
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our %EXTCMD = (); |
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_init_vars; |
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1.1 |
our @EVENT; |
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our $LIBDIR = maps_directory "perl"; |
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1.1 |
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our $TICK = MAX_TIME * 1e-6; |
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our $TICK_WATCHER; |
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our $NEXT_TICK; |
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our %CFG; |
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our $UPTIME; $UPTIME ||= time; |
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############################################################################# |
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=head2 GLOBAL VARIABLES |
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=over 4 |
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=item $cf::UPTIME |
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The timestamp of the server start (so not actually an uptime). |
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=item $cf::LIBDIR |
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The perl library directory, where extensions and cf-specific modules can |
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be found. It will be added to C<@INC> automatically. |
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=item $cf::TICK |
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The interval between server ticks, in seconds. |
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=item %cf::CFG |
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Configuration for the server, loaded from C</etc/crossfire/config>, or |
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from wherever your confdir points to. |
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=back |
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=cut |
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1.1 |
BEGIN { |
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*CORE::GLOBAL::warn = sub { |
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my $msg = join "", @_; |
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$msg .= "\n" |
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unless $msg =~ /\n$/; |
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print STDERR "cfperl: $msg"; |
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LOG llevError, "cfperl: $msg"; |
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}; |
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} |
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@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
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|
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# we bless all objects into (empty) derived classes to force a method lookup |
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# within the Safe compartment. |
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for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) { |
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no strict 'refs'; |
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@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; |
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} |
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$Event::DIED = sub { |
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warn "error in event callback: @_"; |
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}; |
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my %ext_pkg; |
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my @exts; |
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my @hook; |
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=head2 UTILITY FUNCTIONS |
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=over 4 |
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=cut |
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use JSON::Syck (); # TODO# replace by JSON::PC once working |
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|
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=item $ref = cf::from_json $json |
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Converts a JSON string into the corresponding perl data structure. |
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=cut |
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sub from_json($) { |
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$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs |
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JSON::Syck::Load $_[0] |
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} |
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=item $json = cf::to_json $ref |
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Converts a perl data structure into its JSON representation. |
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=cut |
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sub to_json($) { |
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$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs |
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JSON::Syck::Dump $_[0] |
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} |
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=back |
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=cut |
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############################################################################# |
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=head2 EVENTS AND OBJECT ATTACHMENTS |
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=over 4 |
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=item $object->attach ($attachment, key => $value...) |
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=item $object->detach ($attachment) |
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Attach/detach a pre-registered attachment to an object. |
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=item $player->attach ($attachment, key => $value...) |
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=item $player->detach ($attachment) |
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Attach/detach a pre-registered attachment to a player. |
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=item $map->attach ($attachment, key => $value...) |
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=item $map->detach ($attachment) |
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Attach/detach a pre-registered attachment to a map. |
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=item $bool = $object->attached ($name) |
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=item $bool = $player->attached ($name) |
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=item $bool = $map->attached ($name) |
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Checks wether the named attachment is currently attached to the object. |
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=item cf::attach_global ... |
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Attach handlers for global events. |
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This and all following C<attach_*>-functions expect any number of the |
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following handler/hook descriptions: |
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=over 4 |
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=item prio => $number |
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Set the priority for all following handlers/hooks (unless overwritten |
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by another C<prio> setting). Lower priority handlers get executed |
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earlier. The default priority is C<0>, and many built-in handlers are |
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registered at priority C<-1000>, so lower priorities should not be used |
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unless you know what you are doing. |
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=item on_I<event> => \&cb |
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Call the given code reference whenever the named event happens (event is |
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something like C<instantiate>, C<apply>, C<use_skill> and so on, and which |
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handlers are recognised generally depends on the type of object these |
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handlers attach to). |
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See F<include/eventinc.h> for the full list of events supported, and their |
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class. |
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=item package => package:: |
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Look for sub functions of the name C<< on_I<event> >> in the given |
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package and register them. Only handlers for eevents supported by the |
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object/class are recognised. |
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=back |
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=item cf::attach_to_type $object_type, $subtype, ... |
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Attach handlers for a specific object type (e.g. TRANSPORT) and |
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subtype. If C<$subtype> is zero or undef, matches all objects of the given |
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type. |
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=item cf::attach_to_objects ... |
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Attach handlers to all objects. Do not use this except for debugging or |
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very rare events, as handlers are (obviously) called for I<all> objects in |
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the game. |
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=item cf::attach_to_players ... |
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Attach handlers to all players. |
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=item cf::attach_to_maps ... |
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Attach handlers to all maps. |
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=item cf:register_attachment $name, ... |
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Register an attachment by name through which objects can refer to this |
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attachment. |
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=item cf:register_player_attachment $name, ... |
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Register an attachment by name through which players can refer to this |
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attachment. |
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=item cf:register_map_attachment $name, ... |
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Register an attachment by name through which maps can refer to this |
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attachment. |
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=cut |
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# the following variables are defined in .xs and must not be re-created |
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our @CB_GLOBAL = (); # registry for all global events |
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our @CB_OBJECT = (); # all objects (should not be used except in emergency) |
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our @CB_PLAYER = (); |
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our @CB_TYPE = (); # registry for type (cf-object class) based events |
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our @CB_MAP = (); |
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1.45 |
my %attachment; |
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sub _attach_cb($\%$$$) { |
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my ($registry, $undo, $event, $prio, $cb) = @_; |
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use sort 'stable'; |
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$cb = [$prio, $cb]; |
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@{$registry->[$event]} = sort |
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{ $a->[0] cmp $b->[0] } |
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@{$registry->[$event] || []}, $cb; |
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push @{$undo->{cb}}, [$event, $cb]; |
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} |
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# attach handles attaching event callbacks |
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# the only thing the caller has to do is pass the correct |
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# registry (== where the callback attaches to). |
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sub _attach(\@$@) { |
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my ($registry, $klass, @arg) = @_; |
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my $prio = 0; |
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my %undo = ( |
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registry => $registry, |
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cb => [], |
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); |
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my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; |
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while (@arg) { |
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my $type = shift @arg; |
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if ($type eq "prio") { |
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$prio = shift @arg; |
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} elsif ($type eq "package") { |
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my $pkg = shift @arg; |
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while (my ($name, $id) = each %cb_id) { |
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if (my $cb = $pkg->can ($name)) { |
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_attach_cb $registry, %undo, $id, $prio, $cb; |
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} |
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} |
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} elsif (exists $cb_id{$type}) { |
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_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg; |
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} elsif (ref $type) { |
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warn "attaching objects not supported, ignoring.\n"; |
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} else { |
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shift @arg; |
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warn "attach argument '$type' not supported, ignoring.\n"; |
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} |
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} |
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\%undo |
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} |
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sub _attach_attachment { |
301 |
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my ($obj, $name, %arg) = @_; |
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return if exists $obj->{_attachment}{$name}; |
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my $res; |
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if (my $attach = $attachment{$name}) { |
308 |
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my $registry = $obj->registry; |
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for (@$attach) { |
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my ($klass, @attach) = @$_; |
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$res = _attach @$registry, $klass, @attach; |
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} |
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$obj->{$name} = \%arg; |
316 |
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1.46 |
} else { |
317 |
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warn "object uses attachment '$name' that is not available, postponing.\n"; |
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} |
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320 |
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1.50 |
$obj->{_attachment}{$name} = undef; |
321 |
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$res->{attachment} = $name; |
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$res |
324 |
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} |
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1.54 |
*cf::object::attach = |
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*cf::player::attach = |
328 |
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*cf::map::attach = sub { |
329 |
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1.48 |
my ($obj, $name, %arg) = @_; |
330 |
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331 |
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_attach_attachment $obj, $name, %arg; |
332 |
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1.55 |
}; |
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# all those should be optimised |
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*cf::object::detach = |
336 |
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*cf::player::detach = |
337 |
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*cf::map::detach = sub { |
338 |
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my ($obj, $name) = @_; |
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340 |
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1.54 |
delete $obj->{_attachment}{$name}; |
341 |
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1.55 |
reattach ($obj); |
342 |
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}; |
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*cf::object::attached = |
345 |
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*cf::player::attached = |
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*cf::map::attached = sub { |
347 |
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my ($obj, $name) = @_; |
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349 |
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exists $obj->{_attachment}{$name} |
350 |
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1.54 |
}; |
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|
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sub attach_global { |
353 |
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_attach @CB_GLOBAL, KLASS_GLOBAL, @_ |
354 |
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} |
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356 |
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1.40 |
sub attach_to_type { |
357 |
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1.39 |
my $type = shift; |
358 |
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1.47 |
my $subtype = shift; |
359 |
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|
360 |
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_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_ |
361 |
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1.39 |
} |
362 |
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sub attach_to_objects { |
364 |
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1.40 |
_attach @CB_OBJECT, KLASS_OBJECT, @_ |
365 |
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1.39 |
} |
366 |
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sub attach_to_players { |
368 |
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_attach @CB_PLAYER, KLASS_PLAYER, @_ |
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} |
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sub attach_to_maps { |
372 |
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_attach @CB_MAP, KLASS_MAP, @_ |
373 |
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1.39 |
} |
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1.45 |
sub register_attachment { |
376 |
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my $name = shift; |
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378 |
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1.47 |
$attachment{$name} = [[KLASS_OBJECT, @_]]; |
379 |
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1.45 |
} |
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381 |
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1.55 |
sub register_player_attachment { |
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my $name = shift; |
383 |
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384 |
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$attachment{$name} = [[KLASS_PLAYER, @_]]; |
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} |
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387 |
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1.52 |
sub register_map_attachment { |
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my $name = shift; |
389 |
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$attachment{$name} = [[KLASS_MAP, @_]]; |
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} |
392 |
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393 |
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1.39 |
our $override; |
394 |
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1.45 |
our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? |
395 |
root |
1.39 |
|
396 |
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1.45 |
sub override { |
397 |
|
|
$override = 1; |
398 |
|
|
@invoke_results = (); |
399 |
root |
1.39 |
} |
400 |
|
|
|
401 |
root |
1.45 |
sub do_invoke { |
402 |
root |
1.39 |
my $event = shift; |
403 |
root |
1.40 |
my $callbacks = shift; |
404 |
root |
1.39 |
|
405 |
root |
1.45 |
@invoke_results = (); |
406 |
|
|
|
407 |
root |
1.39 |
local $override; |
408 |
|
|
|
409 |
root |
1.40 |
for (@$callbacks) { |
410 |
root |
1.39 |
eval { &{$_->[1]} }; |
411 |
|
|
|
412 |
|
|
if ($@) { |
413 |
|
|
warn "$@"; |
414 |
root |
1.64 |
warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; |
415 |
root |
1.39 |
override; |
416 |
|
|
} |
417 |
|
|
|
418 |
|
|
return 1 if $override; |
419 |
|
|
} |
420 |
|
|
|
421 |
|
|
0 |
422 |
|
|
} |
423 |
|
|
|
424 |
root |
1.55 |
=item $bool = cf::invoke EVENT_GLOBAL_XXX, ... |
425 |
|
|
|
426 |
|
|
=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...) |
427 |
|
|
|
428 |
|
|
=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...) |
429 |
|
|
|
430 |
|
|
=item $bool = $map->invoke (EVENT_MAP_XXX, ...) |
431 |
|
|
|
432 |
|
|
Generate a global/object/player/map-specific event with the given arguments. |
433 |
|
|
|
434 |
|
|
This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be |
435 |
|
|
removed in future versions), and there is no public API to access override |
436 |
|
|
results (if you must, access C<@cf::invoke_results> directly). |
437 |
|
|
|
438 |
|
|
=back |
439 |
|
|
|
440 |
root |
1.71 |
=cut |
441 |
|
|
|
442 |
root |
1.70 |
############################################################################# |
443 |
|
|
|
444 |
|
|
=head2 METHODS VALID FOR ALL CORE OBJECTS |
445 |
root |
1.55 |
|
446 |
|
|
=over 4 |
447 |
|
|
|
448 |
root |
1.70 |
=item $object->valid, $player->valid, $map->valid |
449 |
root |
1.55 |
|
450 |
|
|
Just because you have a perl object does not mean that the corresponding |
451 |
|
|
C-level object still exists. If you try to access an object that has no |
452 |
|
|
valid C counterpart anymore you get an exception at runtime. This method |
453 |
|
|
can be used to test for existence of the C object part without causing an |
454 |
|
|
exception. |
455 |
|
|
|
456 |
|
|
=back |
457 |
|
|
|
458 |
|
|
=cut |
459 |
|
|
|
460 |
|
|
*cf::object::valid = |
461 |
|
|
*cf::player::valid = |
462 |
|
|
*cf::map::valid = \&cf::_valid; |
463 |
|
|
|
464 |
root |
1.39 |
############################################################################# |
465 |
root |
1.45 |
# object support |
466 |
|
|
|
467 |
|
|
sub instantiate { |
468 |
|
|
my ($obj, $data) = @_; |
469 |
|
|
|
470 |
|
|
$data = from_json $data; |
471 |
|
|
|
472 |
|
|
for (@$data) { |
473 |
root |
1.46 |
my ($name, $args) = @$_; |
474 |
root |
1.49 |
|
475 |
|
|
$obj->attach ($name, %{$args || {} }); |
476 |
root |
1.46 |
} |
477 |
|
|
} |
478 |
|
|
|
479 |
|
|
# basically do the same as instantiate, without calling instantiate |
480 |
|
|
sub reattach { |
481 |
|
|
my ($obj) = @_; |
482 |
|
|
my $registry = $obj->registry; |
483 |
root |
1.45 |
|
484 |
root |
1.47 |
@$registry = (); |
485 |
|
|
|
486 |
root |
1.50 |
delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; |
487 |
root |
1.49 |
|
488 |
root |
1.50 |
for my $name (keys %{ $obj->{_attachment} || {} }) { |
489 |
root |
1.45 |
if (my $attach = $attachment{$name}) { |
490 |
root |
1.47 |
for (@$attach) { |
491 |
|
|
my ($klass, @attach) = @$_; |
492 |
|
|
_attach @$registry, $klass, @attach; |
493 |
|
|
} |
494 |
root |
1.45 |
} else { |
495 |
root |
1.46 |
warn "object uses attachment '$name' that is not available, postponing.\n"; |
496 |
root |
1.45 |
} |
497 |
root |
1.46 |
} |
498 |
|
|
} |
499 |
root |
1.45 |
|
500 |
root |
1.46 |
sub object_freezer_save { |
501 |
root |
1.59 |
my ($filename, $rdata, $objs) = @_; |
502 |
root |
1.46 |
|
503 |
root |
1.60 |
if (length $$rdata) { |
504 |
|
|
warn sprintf "saving %s (%d,%d)\n", |
505 |
|
|
$filename, length $$rdata, scalar @$objs; |
506 |
root |
1.59 |
|
507 |
root |
1.60 |
if (open my $fh, ">:raw", "$filename~") { |
508 |
root |
1.59 |
chmod SAVE_MODE, $fh; |
509 |
root |
1.60 |
syswrite $fh, $$rdata; |
510 |
root |
1.59 |
close $fh; |
511 |
root |
1.60 |
|
512 |
|
|
if (@$objs && open my $fh, ">:raw", "$filename.pst~") { |
513 |
|
|
chmod SAVE_MODE, $fh; |
514 |
|
|
syswrite $fh, Storable::nfreeze { version => 1, objs => $objs }; |
515 |
|
|
close $fh; |
516 |
|
|
rename "$filename.pst~", "$filename.pst"; |
517 |
|
|
} else { |
518 |
|
|
unlink "$filename.pst"; |
519 |
|
|
} |
520 |
|
|
|
521 |
|
|
rename "$filename~", $filename; |
522 |
root |
1.59 |
} else { |
523 |
root |
1.60 |
warn "FATAL: $filename~: $!\n"; |
524 |
root |
1.59 |
} |
525 |
root |
1.46 |
} else { |
526 |
root |
1.60 |
unlink $filename; |
527 |
|
|
unlink "$filename.pst"; |
528 |
root |
1.45 |
} |
529 |
|
|
} |
530 |
|
|
|
531 |
root |
1.80 |
sub object_freezer_as_string { |
532 |
|
|
my ($rdata, $objs) = @_; |
533 |
|
|
|
534 |
|
|
use Data::Dumper; |
535 |
|
|
|
536 |
root |
1.81 |
$$rdata . Dumper $objs |
537 |
root |
1.80 |
} |
538 |
|
|
|
539 |
root |
1.46 |
sub object_thawer_load { |
540 |
|
|
my ($filename) = @_; |
541 |
|
|
|
542 |
root |
1.61 |
local $/; |
543 |
|
|
|
544 |
|
|
my $av; |
545 |
|
|
|
546 |
|
|
#TODO: use sysread etc. |
547 |
|
|
if (open my $data, "<:raw:perlio", $filename) { |
548 |
|
|
$data = <$data>; |
549 |
|
|
if (open my $pst, "<:raw:perlio", "$filename.pst") { |
550 |
|
|
$av = eval { (Storable::thaw <$pst>)->{objs} }; |
551 |
|
|
} |
552 |
|
|
return ($data, $av); |
553 |
|
|
} |
554 |
root |
1.45 |
|
555 |
root |
1.61 |
() |
556 |
root |
1.45 |
} |
557 |
|
|
|
558 |
|
|
attach_to_objects |
559 |
|
|
prio => -1000000, |
560 |
|
|
on_clone => sub { |
561 |
|
|
my ($src, $dst) = @_; |
562 |
|
|
|
563 |
|
|
@{$dst->registry} = @{$src->registry}; |
564 |
|
|
|
565 |
|
|
%$dst = %$src; |
566 |
|
|
|
567 |
root |
1.50 |
%{$dst->{_attachment}} = %{$src->{_attachment}} |
568 |
root |
1.45 |
if exists $src->{_attachment}; |
569 |
|
|
}, |
570 |
|
|
; |
571 |
|
|
|
572 |
|
|
############################################################################# |
573 |
root |
1.85 |
# command handling &c |
574 |
root |
1.39 |
|
575 |
root |
1.85 |
=item cf::register_command $name => \&callback($ob,$args); |
576 |
root |
1.1 |
|
577 |
root |
1.85 |
Register a callback for execution when the client sends the user command |
578 |
|
|
$name. |
579 |
root |
1.5 |
|
580 |
root |
1.85 |
=cut |
581 |
root |
1.5 |
|
582 |
root |
1.85 |
sub register_command { |
583 |
|
|
my ($name, $cb) = @_; |
584 |
root |
1.5 |
|
585 |
root |
1.85 |
my $caller = caller; |
586 |
|
|
#warn "registering command '$name/$time' to '$caller'"; |
587 |
root |
1.1 |
|
588 |
root |
1.85 |
push @{ $COMMAND{$name} }, [$caller, $cb]; |
589 |
root |
1.1 |
} |
590 |
|
|
|
591 |
root |
1.85 |
=item cf::register_extcmd $name => \&callback($pl,$packet); |
592 |
root |
1.1 |
|
593 |
root |
1.85 |
Register a callbackf ro execution when the client sends an extcmd packet. |
594 |
root |
1.1 |
|
595 |
root |
1.85 |
If the callback returns something, it is sent back as if reply was being |
596 |
|
|
called. |
597 |
root |
1.1 |
|
598 |
root |
1.85 |
=cut |
599 |
root |
1.1 |
|
600 |
root |
1.16 |
sub register_extcmd { |
601 |
|
|
my ($name, $cb) = @_; |
602 |
|
|
|
603 |
|
|
my $caller = caller; |
604 |
|
|
#warn "registering extcmd '$name' to '$caller'"; |
605 |
|
|
|
606 |
root |
1.85 |
$EXTCMD{$name} = [$cb, $caller]; |
607 |
root |
1.16 |
} |
608 |
|
|
|
609 |
root |
1.85 |
attach_to_players |
610 |
|
|
on_command => sub { |
611 |
|
|
my ($pl, $name, $params) = @_; |
612 |
|
|
|
613 |
|
|
my $cb = $COMMAND{$name} |
614 |
|
|
or return; |
615 |
|
|
|
616 |
|
|
for my $cmd (@$cb) { |
617 |
|
|
$cmd->[1]->($pl->ob, $params); |
618 |
|
|
} |
619 |
|
|
|
620 |
|
|
cf::override; |
621 |
|
|
}, |
622 |
|
|
on_extcmd => sub { |
623 |
|
|
my ($pl, $buf) = @_; |
624 |
|
|
|
625 |
|
|
my $msg = eval { from_json $buf }; |
626 |
|
|
|
627 |
|
|
if (ref $msg) { |
628 |
|
|
if (my $cb = $EXTCMD{$msg->{msgtype}}) { |
629 |
|
|
if (my %reply = $cb->[0]->($pl, $msg)) { |
630 |
|
|
$pl->ext_reply ($msg->{msgid}, %reply); |
631 |
|
|
} |
632 |
|
|
} |
633 |
|
|
} else { |
634 |
|
|
warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; |
635 |
|
|
} |
636 |
|
|
|
637 |
|
|
cf::override; |
638 |
|
|
}, |
639 |
|
|
; |
640 |
|
|
|
641 |
root |
1.6 |
sub register { |
642 |
|
|
my ($base, $pkg) = @_; |
643 |
|
|
|
644 |
root |
1.45 |
#TODO |
645 |
root |
1.6 |
} |
646 |
|
|
|
647 |
root |
1.1 |
sub load_extension { |
648 |
|
|
my ($path) = @_; |
649 |
|
|
|
650 |
|
|
$path =~ /([^\/\\]+)\.ext$/ or die "$path"; |
651 |
root |
1.5 |
my $base = $1; |
652 |
root |
1.1 |
my $pkg = $1; |
653 |
|
|
$pkg =~ s/[^[:word:]]/_/g; |
654 |
root |
1.41 |
$pkg = "ext::$pkg"; |
655 |
root |
1.1 |
|
656 |
|
|
warn "loading '$path' into '$pkg'\n"; |
657 |
|
|
|
658 |
|
|
open my $fh, "<:utf8", $path |
659 |
|
|
or die "$path: $!"; |
660 |
|
|
|
661 |
|
|
my $source = |
662 |
|
|
"package $pkg; use strict; use utf8;\n" |
663 |
|
|
. "#line 1 \"$path\"\n{\n" |
664 |
|
|
. (do { local $/; <$fh> }) |
665 |
|
|
. "\n};\n1"; |
666 |
|
|
|
667 |
|
|
eval $source |
668 |
root |
1.82 |
or die $@ ? "$path: $@\n" |
669 |
|
|
: "extension disabled.\n"; |
670 |
root |
1.1 |
|
671 |
|
|
push @exts, $pkg; |
672 |
root |
1.5 |
$ext_pkg{$base} = $pkg; |
673 |
root |
1.1 |
|
674 |
root |
1.6 |
# no strict 'refs'; |
675 |
root |
1.23 |
# @{"$pkg\::ISA"} = ext::; |
676 |
root |
1.1 |
|
677 |
root |
1.6 |
register $base, $pkg; |
678 |
root |
1.1 |
} |
679 |
|
|
|
680 |
|
|
sub unload_extension { |
681 |
|
|
my ($pkg) = @_; |
682 |
|
|
|
683 |
|
|
warn "removing extension $pkg\n"; |
684 |
|
|
|
685 |
|
|
# remove hooks |
686 |
root |
1.45 |
#TODO |
687 |
|
|
# for my $idx (0 .. $#PLUGIN_EVENT) { |
688 |
|
|
# delete $hook[$idx]{$pkg}; |
689 |
|
|
# } |
690 |
root |
1.1 |
|
691 |
|
|
# remove commands |
692 |
root |
1.85 |
for my $name (keys %COMMAND) { |
693 |
|
|
my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} }; |
694 |
root |
1.1 |
|
695 |
|
|
if (@cb) { |
696 |
root |
1.85 |
$COMMAND{$name} = \@cb; |
697 |
root |
1.1 |
} else { |
698 |
root |
1.85 |
delete $COMMAND{$name}; |
699 |
root |
1.1 |
} |
700 |
|
|
} |
701 |
|
|
|
702 |
root |
1.15 |
# remove extcmds |
703 |
root |
1.85 |
for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) { |
704 |
|
|
delete $EXTCMD{$name}; |
705 |
root |
1.15 |
} |
706 |
|
|
|
707 |
root |
1.43 |
if (my $cb = $pkg->can ("unload")) { |
708 |
elmex |
1.31 |
eval { |
709 |
|
|
$cb->($pkg); |
710 |
|
|
1 |
711 |
|
|
} or warn "$pkg unloaded, but with errors: $@"; |
712 |
|
|
} |
713 |
|
|
|
714 |
root |
1.1 |
Symbol::delete_package $pkg; |
715 |
|
|
} |
716 |
|
|
|
717 |
|
|
sub load_extensions { |
718 |
|
|
my $LIBDIR = maps_directory "perl"; |
719 |
|
|
|
720 |
|
|
for my $ext (<$LIBDIR/*.ext>) { |
721 |
root |
1.3 |
next unless -r $ext; |
722 |
root |
1.2 |
eval { |
723 |
|
|
load_extension $ext; |
724 |
|
|
1 |
725 |
|
|
} or warn "$ext not loaded: $@"; |
726 |
root |
1.1 |
} |
727 |
|
|
} |
728 |
|
|
|
729 |
root |
1.8 |
############################################################################# |
730 |
|
|
# load/save/clean perl data associated with a map |
731 |
|
|
|
732 |
root |
1.39 |
*cf::mapsupport::on_clean = sub { |
733 |
root |
1.13 |
my ($map) = @_; |
734 |
root |
1.7 |
|
735 |
|
|
my $path = $map->tmpname; |
736 |
|
|
defined $path or return; |
737 |
|
|
|
738 |
root |
1.46 |
unlink "$path.pst"; |
739 |
root |
1.7 |
}; |
740 |
|
|
|
741 |
root |
1.39 |
attach_to_maps prio => -10000, package => cf::mapsupport::; |
742 |
|
|
|
743 |
root |
1.8 |
############################################################################# |
744 |
|
|
# load/save perl data associated with player->ob objects |
745 |
|
|
|
746 |
root |
1.33 |
sub all_objects(@) { |
747 |
|
|
@_, map all_objects ($_->inv), @_ |
748 |
|
|
} |
749 |
|
|
|
750 |
root |
1.60 |
# TODO: compatibility cruft, remove when no longer needed |
751 |
root |
1.39 |
attach_to_players |
752 |
|
|
on_load => sub { |
753 |
|
|
my ($pl, $path) = @_; |
754 |
|
|
|
755 |
|
|
for my $o (all_objects $pl->ob) { |
756 |
|
|
if (my $value = $o->get_ob_key_value ("_perl_data")) { |
757 |
|
|
$o->set_ob_key_value ("_perl_data"); |
758 |
root |
1.8 |
|
759 |
root |
1.39 |
%$o = %{ Storable::thaw pack "H*", $value }; |
760 |
|
|
} |
761 |
root |
1.11 |
} |
762 |
root |
1.39 |
}, |
763 |
|
|
; |
764 |
root |
1.6 |
|
765 |
root |
1.22 |
############################################################################# |
766 |
root |
1.70 |
|
767 |
|
|
=head2 CORE EXTENSIONS |
768 |
|
|
|
769 |
|
|
Functions and methods that extend core crossfire objects. |
770 |
|
|
|
771 |
|
|
=over 4 |
772 |
root |
1.22 |
|
773 |
root |
1.23 |
=item cf::player::exists $login |
774 |
|
|
|
775 |
|
|
Returns true when the given account exists. |
776 |
|
|
|
777 |
|
|
=cut |
778 |
|
|
|
779 |
|
|
sub cf::player::exists($) { |
780 |
|
|
cf::player::find $_[0] |
781 |
|
|
or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
782 |
|
|
} |
783 |
|
|
|
784 |
root |
1.79 |
=item $player_object->reply ($npc, $msg[, $flags]) |
785 |
root |
1.28 |
|
786 |
|
|
Sends a message to the player, as if the npc C<$npc> replied. C<$npc> |
787 |
|
|
can be C<undef>. Does the right thing when the player is currently in a |
788 |
|
|
dialogue with the given NPC character. |
789 |
|
|
|
790 |
|
|
=cut |
791 |
|
|
|
792 |
root |
1.22 |
# rough implementation of a future "reply" method that works |
793 |
|
|
# with dialog boxes. |
794 |
root |
1.23 |
sub cf::object::player::reply($$$;$) { |
795 |
|
|
my ($self, $npc, $msg, $flags) = @_; |
796 |
|
|
|
797 |
|
|
$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; |
798 |
root |
1.22 |
|
799 |
root |
1.24 |
if ($self->{record_replies}) { |
800 |
|
|
push @{ $self->{record_replies} }, [$npc, $msg, $flags]; |
801 |
|
|
} else { |
802 |
|
|
$msg = $npc->name . " says: $msg" if $npc; |
803 |
|
|
$self->message ($msg, $flags); |
804 |
|
|
} |
805 |
root |
1.22 |
} |
806 |
|
|
|
807 |
root |
1.28 |
=item $player->ext_reply ($msgid, $msgtype, %msg) |
808 |
|
|
|
809 |
|
|
Sends an ext reply to the player. |
810 |
|
|
|
811 |
|
|
=cut |
812 |
|
|
|
813 |
|
|
sub cf::player::ext_reply($$$%) { |
814 |
|
|
my ($self, $id, %msg) = @_; |
815 |
|
|
|
816 |
|
|
$msg{msgid} = $id; |
817 |
|
|
|
818 |
|
|
$self->send ("ext " . to_json \%msg); |
819 |
|
|
} |
820 |
|
|
|
821 |
root |
1.79 |
=item $player_object->may ("access") |
822 |
|
|
|
823 |
|
|
Returns wether the given player is authorized to access resource "access" |
824 |
|
|
(e.g. "command_wizcast"). |
825 |
|
|
|
826 |
|
|
=cut |
827 |
|
|
|
828 |
|
|
sub cf::object::player::may { |
829 |
|
|
my ($self, $access) = @_; |
830 |
|
|
|
831 |
|
|
$self->flag (cf::FLAG_WIZ) || |
832 |
|
|
(ref $cf::CFG{"may_$access"} |
833 |
|
|
? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} |
834 |
|
|
: $cf::CFG{"may_$access"}) |
835 |
|
|
} |
836 |
root |
1.70 |
|
837 |
|
|
=cut |
838 |
|
|
|
839 |
root |
1.22 |
############################################################################# |
840 |
root |
1.70 |
|
841 |
|
|
=head2 SAFE SCRIPTING |
842 |
|
|
|
843 |
|
|
Functions that provide a safe environment to compile and execute |
844 |
|
|
snippets of perl code without them endangering the safety of the server |
845 |
|
|
itself. Looping constructs, I/O operators and other built-in functionality |
846 |
|
|
is not available in the safe scripting environment, and the number of |
847 |
root |
1.79 |
functions and methods that can be called is greatly reduced. |
848 |
root |
1.70 |
|
849 |
|
|
=cut |
850 |
root |
1.23 |
|
851 |
root |
1.42 |
our $safe = new Safe "safe"; |
852 |
root |
1.23 |
our $safe_hole = new Safe::Hole; |
853 |
|
|
|
854 |
|
|
$SIG{FPE} = 'IGNORE'; |
855 |
|
|
|
856 |
|
|
$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
857 |
|
|
|
858 |
root |
1.25 |
# here we export the classes and methods available to script code |
859 |
|
|
|
860 |
root |
1.70 |
=pod |
861 |
|
|
|
862 |
|
|
The following fucntions and emthods are available within a safe environment: |
863 |
|
|
|
864 |
|
|
cf::object contr pay_amount pay_player |
865 |
|
|
cf::object::player player |
866 |
|
|
cf::player peaceful |
867 |
|
|
|
868 |
|
|
=cut |
869 |
|
|
|
870 |
root |
1.25 |
for ( |
871 |
root |
1.27 |
["cf::object" => qw(contr pay_amount pay_player)], |
872 |
root |
1.25 |
["cf::object::player" => qw(player)], |
873 |
|
|
["cf::player" => qw(peaceful)], |
874 |
|
|
) { |
875 |
|
|
no strict 'refs'; |
876 |
|
|
my ($pkg, @funs) = @$_; |
877 |
root |
1.41 |
*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
878 |
root |
1.25 |
for @funs; |
879 |
|
|
} |
880 |
root |
1.23 |
|
881 |
root |
1.70 |
=over 4 |
882 |
|
|
|
883 |
|
|
=item @retval = safe_eval $code, [var => value, ...] |
884 |
|
|
|
885 |
|
|
Compiled and executes the given perl code snippet. additional var/value |
886 |
|
|
pairs result in temporary local (my) scalar variables of the given name |
887 |
|
|
that are available in the code snippet. Example: |
888 |
|
|
|
889 |
|
|
my $five = safe_eval '$first + $second', first => 1, second => 4; |
890 |
|
|
|
891 |
|
|
=cut |
892 |
|
|
|
893 |
root |
1.23 |
sub safe_eval($;@) { |
894 |
|
|
my ($code, %vars) = @_; |
895 |
|
|
|
896 |
|
|
my $qcode = $code; |
897 |
|
|
$qcode =~ s/"/‟/g; # not allowed in #line filenames |
898 |
|
|
$qcode =~ s/\n/\\n/g; |
899 |
|
|
|
900 |
|
|
local $_; |
901 |
root |
1.41 |
local @safe::cf::_safe_eval_args = values %vars; |
902 |
root |
1.23 |
|
903 |
root |
1.42 |
my $eval = |
904 |
root |
1.23 |
"do {\n" |
905 |
|
|
. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" |
906 |
|
|
. "#line 0 \"{$qcode}\"\n" |
907 |
|
|
. $code |
908 |
|
|
. "\n}" |
909 |
root |
1.25 |
; |
910 |
|
|
|
911 |
|
|
sub_generation_inc; |
912 |
root |
1.42 |
my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); |
913 |
root |
1.25 |
sub_generation_inc; |
914 |
|
|
|
915 |
root |
1.42 |
if ($@) { |
916 |
|
|
warn "$@"; |
917 |
|
|
warn "while executing safe code '$code'\n"; |
918 |
|
|
warn "with arguments " . (join " ", %vars) . "\n"; |
919 |
|
|
} |
920 |
|
|
|
921 |
root |
1.25 |
wantarray ? @res : $res[0] |
922 |
root |
1.23 |
} |
923 |
|
|
|
924 |
root |
1.69 |
=item cf::register_script_function $function => $cb |
925 |
|
|
|
926 |
|
|
Register a function that can be called from within map/npc scripts. The |
927 |
|
|
function should be reasonably secure and should be put into a package name |
928 |
|
|
like the extension. |
929 |
|
|
|
930 |
|
|
Example: register a function that gets called whenever a map script calls |
931 |
|
|
C<rent::overview>, as used by the C<rent> extension. |
932 |
|
|
|
933 |
|
|
cf::register_script_function "rent::overview" => sub { |
934 |
|
|
... |
935 |
|
|
}; |
936 |
|
|
|
937 |
|
|
=cut |
938 |
|
|
|
939 |
root |
1.23 |
sub register_script_function { |
940 |
|
|
my ($fun, $cb) = @_; |
941 |
|
|
|
942 |
|
|
no strict 'refs'; |
943 |
root |
1.41 |
*{"safe::$fun"} = $safe_hole->wrap ($cb); |
944 |
root |
1.23 |
} |
945 |
|
|
|
946 |
root |
1.70 |
=back |
947 |
|
|
|
948 |
root |
1.71 |
=cut |
949 |
|
|
|
950 |
root |
1.23 |
############################################################################# |
951 |
root |
1.65 |
|
952 |
|
|
=head2 EXTENSION DATABASE SUPPORT |
953 |
|
|
|
954 |
|
|
Crossfire maintains a very simple database for extension use. It can |
955 |
|
|
currently store anything that can be serialised using Storable, which |
956 |
|
|
excludes objects. |
957 |
|
|
|
958 |
|
|
The parameter C<$family> should best start with the name of the extension |
959 |
|
|
using it, it should be unique. |
960 |
|
|
|
961 |
|
|
=over 4 |
962 |
|
|
|
963 |
|
|
=item $hashref = cf::db_get $family |
964 |
|
|
|
965 |
|
|
Return a hashref for use by the extension C<$family>, which can be |
966 |
|
|
modified. After modifications, you have to call C<cf::db_dirty> or |
967 |
|
|
C<cf::db_sync>. |
968 |
|
|
|
969 |
|
|
=item $value = cf::db_get $family => $key |
970 |
|
|
|
971 |
|
|
Returns a single value from the database |
972 |
|
|
|
973 |
|
|
=item cf::db_put $family => $hashref |
974 |
|
|
|
975 |
|
|
Stores the given family hashref into the database. Updates are delayed, if |
976 |
|
|
you want the data to be synced to disk immediately, use C<cf::db_sync>. |
977 |
|
|
|
978 |
|
|
=item cf::db_put $family => $key => $value |
979 |
|
|
|
980 |
|
|
Stores the given C<$value> in the family hash. Updates are delayed, if you |
981 |
|
|
want the data to be synced to disk immediately, use C<cf::db_sync>. |
982 |
|
|
|
983 |
|
|
=item cf::db_dirty |
984 |
|
|
|
985 |
|
|
Marks the database as dirty, to be updated at a later time. |
986 |
|
|
|
987 |
|
|
=item cf::db_sync |
988 |
|
|
|
989 |
|
|
Immediately write the database to disk I<if it is dirty>. |
990 |
|
|
|
991 |
|
|
=cut |
992 |
|
|
|
993 |
root |
1.78 |
our $DB; |
994 |
|
|
|
995 |
root |
1.65 |
{ |
996 |
root |
1.66 |
my $path = cf::localdir . "/database.pst"; |
997 |
root |
1.65 |
|
998 |
|
|
sub db_load() { |
999 |
|
|
warn "loading database $path\n";#d# remove later |
1000 |
root |
1.78 |
$DB = stat $path ? Storable::retrieve $path : { }; |
1001 |
root |
1.65 |
} |
1002 |
|
|
|
1003 |
|
|
my $pid; |
1004 |
|
|
|
1005 |
|
|
sub db_save() { |
1006 |
|
|
warn "saving database $path\n";#d# remove later |
1007 |
|
|
waitpid $pid, 0 if $pid; |
1008 |
root |
1.67 |
if (0 == ($pid = fork)) { |
1009 |
root |
1.78 |
$DB->{_meta}{version} = 1; |
1010 |
|
|
Storable::nstore $DB, "$path~"; |
1011 |
root |
1.65 |
rename "$path~", $path; |
1012 |
|
|
cf::_exit 0 if defined $pid; |
1013 |
|
|
} |
1014 |
|
|
} |
1015 |
|
|
|
1016 |
|
|
my $dirty; |
1017 |
|
|
|
1018 |
|
|
sub db_sync() { |
1019 |
|
|
db_save if $dirty; |
1020 |
|
|
undef $dirty; |
1021 |
|
|
} |
1022 |
|
|
|
1023 |
|
|
my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub { |
1024 |
|
|
db_sync; |
1025 |
|
|
}); |
1026 |
|
|
|
1027 |
|
|
sub db_dirty() { |
1028 |
|
|
$dirty = 1; |
1029 |
|
|
$idle->start; |
1030 |
|
|
} |
1031 |
|
|
|
1032 |
|
|
sub db_get($;$) { |
1033 |
|
|
@_ >= 2 |
1034 |
root |
1.78 |
? $DB->{$_[0]}{$_[1]} |
1035 |
|
|
: ($DB->{$_[0]} ||= { }) |
1036 |
root |
1.65 |
} |
1037 |
|
|
|
1038 |
|
|
sub db_put($$;$) { |
1039 |
|
|
if (@_ >= 3) { |
1040 |
root |
1.78 |
$DB->{$_[0]}{$_[1]} = $_[2]; |
1041 |
root |
1.65 |
} else { |
1042 |
root |
1.78 |
$DB->{$_[0]} = $_[1]; |
1043 |
root |
1.65 |
} |
1044 |
|
|
db_dirty; |
1045 |
|
|
} |
1046 |
root |
1.67 |
|
1047 |
|
|
attach_global |
1048 |
|
|
prio => 10000, |
1049 |
|
|
on_cleanup => sub { |
1050 |
|
|
db_sync; |
1051 |
|
|
}, |
1052 |
|
|
; |
1053 |
root |
1.65 |
} |
1054 |
|
|
|
1055 |
|
|
############################################################################# |
1056 |
root |
1.34 |
# the server's main() |
1057 |
|
|
|
1058 |
root |
1.73 |
sub cfg_load { |
1059 |
root |
1.72 |
open my $fh, "<:utf8", cf::confdir . "/config" |
1060 |
|
|
or return; |
1061 |
|
|
|
1062 |
|
|
local $/; |
1063 |
|
|
*CFG = YAML::Syck::Load <$fh>; |
1064 |
|
|
} |
1065 |
|
|
|
1066 |
root |
1.39 |
sub main { |
1067 |
root |
1.73 |
cfg_load; |
1068 |
root |
1.65 |
db_load; |
1069 |
root |
1.61 |
load_extensions; |
1070 |
root |
1.34 |
Event::loop; |
1071 |
|
|
} |
1072 |
|
|
|
1073 |
|
|
############################################################################# |
1074 |
root |
1.22 |
# initialisation |
1075 |
|
|
|
1076 |
root |
1.65 |
sub _perl_reload(&) { |
1077 |
|
|
my ($msg) = @_; |
1078 |
|
|
|
1079 |
|
|
$msg->("reloading..."); |
1080 |
|
|
|
1081 |
|
|
eval { |
1082 |
|
|
# cancel all watchers |
1083 |
|
|
$_->cancel for Event::all_watchers; |
1084 |
|
|
|
1085 |
|
|
# unload all extensions |
1086 |
|
|
for (@exts) { |
1087 |
|
|
$msg->("unloading <$_>"); |
1088 |
|
|
unload_extension $_; |
1089 |
|
|
} |
1090 |
|
|
|
1091 |
|
|
# unload all modules loaded from $LIBDIR |
1092 |
|
|
while (my ($k, $v) = each %INC) { |
1093 |
|
|
next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
1094 |
|
|
|
1095 |
|
|
$msg->("removing <$k>"); |
1096 |
|
|
delete $INC{$k}; |
1097 |
|
|
|
1098 |
|
|
$k =~ s/\.pm$//; |
1099 |
|
|
$k =~ s/\//::/g; |
1100 |
|
|
|
1101 |
|
|
if (my $cb = $k->can ("unload_module")) { |
1102 |
|
|
$cb->(); |
1103 |
|
|
} |
1104 |
|
|
|
1105 |
|
|
Symbol::delete_package $k; |
1106 |
|
|
} |
1107 |
|
|
|
1108 |
|
|
# sync database to disk |
1109 |
|
|
cf::db_sync; |
1110 |
|
|
|
1111 |
|
|
# get rid of safe::, as good as possible |
1112 |
|
|
Symbol::delete_package "safe::$_" |
1113 |
|
|
for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region); |
1114 |
|
|
|
1115 |
|
|
# remove register_script_function callbacks |
1116 |
|
|
# TODO |
1117 |
|
|
|
1118 |
|
|
# unload cf.pm "a bit" |
1119 |
|
|
delete $INC{"cf.pm"}; |
1120 |
|
|
|
1121 |
|
|
# don't, removes xs symbols, too, |
1122 |
|
|
# and global variables created in xs |
1123 |
|
|
#Symbol::delete_package __PACKAGE__; |
1124 |
|
|
|
1125 |
|
|
# reload cf.pm |
1126 |
|
|
$msg->("reloading cf.pm"); |
1127 |
|
|
require cf; |
1128 |
|
|
|
1129 |
root |
1.73 |
# load config and database again |
1130 |
|
|
cf::cfg_load; |
1131 |
root |
1.65 |
cf::db_load; |
1132 |
|
|
|
1133 |
|
|
# load extensions |
1134 |
|
|
$msg->("load extensions"); |
1135 |
|
|
cf::load_extensions; |
1136 |
|
|
|
1137 |
|
|
# reattach attachments to objects |
1138 |
|
|
$msg->("reattach"); |
1139 |
|
|
_global_reattach; |
1140 |
|
|
}; |
1141 |
|
|
$msg->($@) if $@; |
1142 |
|
|
|
1143 |
|
|
$msg->("reloaded"); |
1144 |
|
|
}; |
1145 |
|
|
|
1146 |
|
|
sub perl_reload() { |
1147 |
|
|
_perl_reload { |
1148 |
|
|
warn $_[0]; |
1149 |
|
|
print "$_[0]\n"; |
1150 |
|
|
}; |
1151 |
|
|
} |
1152 |
|
|
|
1153 |
root |
1.85 |
register "<global>", __PACKAGE__; |
1154 |
|
|
|
1155 |
|
|
register_command "perl-reload" => sub { |
1156 |
root |
1.65 |
my ($who, $arg) = @_; |
1157 |
|
|
|
1158 |
|
|
if ($who->flag (FLAG_WIZ)) { |
1159 |
|
|
_perl_reload { |
1160 |
|
|
warn $_[0]; |
1161 |
|
|
$who->message ($_[0]); |
1162 |
|
|
}; |
1163 |
|
|
} |
1164 |
|
|
}; |
1165 |
|
|
|
1166 |
root |
1.27 |
unshift @INC, $LIBDIR; |
1167 |
root |
1.17 |
|
1168 |
root |
1.35 |
$TICK_WATCHER = Event->timer ( |
1169 |
root |
1.77 |
prio => 1, |
1170 |
|
|
async => 1, |
1171 |
|
|
at => $NEXT_TICK || 1, |
1172 |
|
|
cb => sub { |
1173 |
root |
1.35 |
cf::server_tick; # one server iteration |
1174 |
|
|
|
1175 |
|
|
my $NOW = Event::time; |
1176 |
|
|
$NEXT_TICK += $TICK; |
1177 |
|
|
|
1178 |
root |
1.78 |
# if we are delayed by four ticks or more, skip them all |
1179 |
root |
1.37 |
$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; |
1180 |
root |
1.35 |
|
1181 |
|
|
$TICK_WATCHER->at ($NEXT_TICK); |
1182 |
|
|
$TICK_WATCHER->start; |
1183 |
|
|
}, |
1184 |
|
|
); |
1185 |
|
|
|
1186 |
root |
1.80 |
IO::AIO::max_poll_time $TICK * 0.2; |
1187 |
root |
1.77 |
|
1188 |
|
|
Event->io (fd => IO::AIO::poll_fileno, |
1189 |
|
|
poll => 'r', |
1190 |
|
|
prio => 5, |
1191 |
|
|
cb => \&IO::AIO::poll_cb); |
1192 |
|
|
|
1193 |
root |
1.1 |
1 |
1194 |
|
|
|