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package cf; |
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use utf8; |
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use strict; |
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use Symbol; |
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use List::Util; |
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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 Coro 3.3; |
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use Coro::Event; |
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use Coro::Timer; |
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use Coro::Signal; |
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use Coro::Semaphore; |
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use Coro::AIO; |
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use Digest::MD5; |
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use Fcntl; |
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use IO::AIO 2.31 (); |
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use YAML::Syck (); |
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use Time::HiRes; |
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use Event; $Event::Eval = 1; # no idea why this is required, but it is |
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# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? |
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$YAML::Syck::ImplicitUnicode = 1; |
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$Coro::main->prio (2); # run main coroutine ("the server") with very high priority |
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sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload |
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our %COMMAND = (); |
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our %COMMAND_TIME = (); |
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our %EXTCMD = (); |
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our @EVENT; |
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our $LIBDIR = datadir . "/ext"; |
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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 $NOW; |
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our %CFG; |
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our $UPTIME; $UPTIME ||= time; |
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our $RUNTIME; |
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our %MAP; # all maps |
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our $LINK_MAP; # the special {link} map |
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our $FREEZE; |
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our $RANDOM_MAPS = cf::localdir . "/random"; |
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our %EXT_CORO; |
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binmode STDOUT; |
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binmode STDERR; |
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# read virtual server time, if available |
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unless ($RUNTIME || !-e cf::localdir . "/runtime") { |
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open my $fh, "<", cf::localdir . "/runtime" |
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or die "unable to read runtime file: $!"; |
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$RUNTIME = <$fh> + 0.; |
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} |
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mkdir cf::localdir; |
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mkdir cf::localdir . "/" . cf::playerdir; |
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mkdir cf::localdir . "/" . cf::tmpdir; |
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mkdir cf::localdir . "/" . cf::uniquedir; |
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mkdir $RANDOM_MAPS; |
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# a special map that is always available |
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our $LINK_MAP; |
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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::RUNTIME |
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The time this server has run, starts at 0 and is increased by $cf::TICK on |
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every server tick. |
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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::NOW |
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The time of the last (current) server tick. |
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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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BEGIN { |
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*CORE::GLOBAL::warn = sub { |
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my $msg = join "", @_; |
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utf8::encode $msg; |
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$msg .= "\n" |
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unless $msg =~ /\n$/; |
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LOG llevError, "cfperl: $msg"; |
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}; |
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} |
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@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; |
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@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; |
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@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; |
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@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; |
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@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; |
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@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
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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 $pkg (qw( |
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cf::global cf::attachable |
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cf::object cf::object::player |
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cf::client cf::player |
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cf::arch cf::living |
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cf::map cf::party cf::region |
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)) { |
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no strict 'refs'; |
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@{"safe::$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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=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 $_[0] |
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} |
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=item cf::sync_job { BLOCK } |
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The design of crossfire+ requires that the main coro ($Coro::main) is |
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always able to handle events or runnable, as crossfire+ is only partly |
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reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. |
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If it must be done, put the blocking parts into C<sync_job>. This will run |
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the given BLOCK in another coroutine while waiting for the result. The |
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server will be frozen during this time, so the block should either finish |
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fast or be very important. |
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=cut |
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sub sync_job(&) { |
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my ($job) = @_; |
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my $busy = 1; |
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my @res; |
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# TODO: use suspend/resume instead |
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local $FREEZE = 1; |
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my $coro = Coro::async { |
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@res = eval { $job->() }; |
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warn $@ if $@; |
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undef $busy; |
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}; |
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if ($Coro::current == $Coro::main) { |
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$coro->prio (Coro::PRIO_MAX); |
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while ($busy) { |
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Coro::cede_notself; |
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Event::one_event unless Coro::nready; |
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} |
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} else { |
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$coro->join; |
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} |
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wantarray ? @res : $res[0] |
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} |
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=item $coro = cf::coro { BLOCK } |
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Creates and returns a new coro. This coro is automcatially being canceled |
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when the extension calling this is being unloaded. |
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=cut |
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sub coro(&) { |
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my $cb = shift; |
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my $coro; $coro = async { |
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eval { |
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$cb->(); |
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}; |
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warn $@ if $@; |
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}; |
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$coro->on_destroy (sub { |
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delete $EXT_CORO{$coro+0}; |
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}); |
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$EXT_CORO{$coro+0} = $coro; |
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$coro |
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} |
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sub write_runtime { |
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my $runtime = cf::localdir . "/runtime"; |
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my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 |
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or return; |
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my $value = $cf::RUNTIME; |
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(aio_write $fh, 0, (length $value), $value, 0) <= 0 |
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and return; |
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aio_fsync $fh |
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and return; |
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close $fh |
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or return; |
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aio_rename "$runtime~", $runtime |
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and return; |
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1 |
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} |
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=back |
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=cut |
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1.44 |
############################################################################# |
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1.108 |
package cf::path; |
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sub new { |
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my ($class, $path, $base) = @_; |
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my $self = bless { }, $class; |
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if ($path =~ s{^\?random/}{}) { |
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$self->{random} = cf::from_json $path; |
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} else { |
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if ($path =~ s{^~([^/]+)?}{}) { |
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$self->{user_rel} = 1; |
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if (defined $1) { |
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$self->{user} = $1; |
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} elsif ($base =~ m{^~([^/]+)/}) { |
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$self->{user} = $1; |
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} else { |
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warn "cannot resolve user-relative path without user <$path,$base>\n"; |
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} |
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} elsif ($path =~ /^\//) { |
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# already absolute |
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} else { |
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$base =~ s{[^/]+/?$}{}; |
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return $class->new ("$base/$path"); |
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} |
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for ($path) { |
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redo if s{/\.?/}{/}; |
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redo if s{/[^/]+/\.\./}{/}; |
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} |
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} |
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$self->{path} = $path; |
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$self |
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} |
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# the name / primary key / in-game path |
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sub as_string { |
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my ($self) = @_; |
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$self->{user_rel} ? "~$self->{user}$self->{path}" |
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: $self->{random} ? "?random/$self->{path}" |
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: $self->{path} |
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} |
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# the displayed name, this is a one way mapping |
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sub visible_name { |
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my ($self) = @_; |
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$self->{random} ? "?random/$self->{random}{origin_map}+$self->{random}{origin_x}+$self->{random}{origin_y}/$self->{random}{dungeon_level}" |
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: $self->as_string |
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} |
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# escape the /'s in the path |
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sub _escaped_path { |
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# ∕ is U+2215 |
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(my $path = $_[0]{path}) =~ s/\//∕/g; |
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$path |
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} |
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# the original (read-only) location |
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sub load_path { |
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my ($self) = @_; |
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sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} |
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} |
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# the temporary/swap location |
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sub save_path { |
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my ($self) = @_; |
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$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path |
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: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, Digest::MD5::md5_hex $self->{path} |
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: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path |
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} |
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356 |
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# the unique path, might be eq to save_path |
357 |
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sub uniq_path { |
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my ($self) = @_; |
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360 |
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$self->{user_rel} || $self->{random} |
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? undef |
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: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path |
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} |
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365 |
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# return random map parameters, or undef |
366 |
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sub random_map_params { |
367 |
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my ($self) = @_; |
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$self->{random} |
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} |
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# this is somewhat ugly, but style maps do need special treatment |
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sub is_style_map { |
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$_[0]{path} =~ m{^/styles/} |
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} |
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package cf; |
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############################################################################# |
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381 |
root |
1.93 |
=head2 ATTACHABLE OBJECTS |
382 |
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|
383 |
root |
1.94 |
Many objects in crossfire are so-called attachable objects. That means you can |
384 |
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attach callbacks/event handlers (a collection of which is called an "attachment") |
385 |
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to it. All such attachable objects support the following methods. |
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In the following description, CLASS can be any of C<global>, C<object> |
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C<player>, C<client> or C<map> (i.e. the attachable objects in |
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crossfire+). |
390 |
root |
1.55 |
|
391 |
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=over 4 |
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393 |
root |
1.94 |
=item $attachable->attach ($attachment, key => $value...) |
394 |
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395 |
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=item $attachable->detach ($attachment) |
396 |
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397 |
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Attach/detach a pre-registered attachment to a specific object and give it |
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the specified key/value pairs as arguments. |
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Example, attach a minesweeper attachment to the given object, making it a |
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|
|
10x10 minesweeper game: |
402 |
root |
1.46 |
|
403 |
root |
1.94 |
$obj->attach (minesweeper => width => 10, height => 10); |
404 |
root |
1.53 |
|
405 |
root |
1.93 |
=item $bool = $attachable->attached ($name) |
406 |
root |
1.46 |
|
407 |
root |
1.93 |
Checks wether the named attachment is currently attached to the object. |
408 |
root |
1.46 |
|
409 |
root |
1.94 |
=item cf::CLASS->attach ... |
410 |
root |
1.46 |
|
411 |
root |
1.94 |
=item cf::CLASS->detach ... |
412 |
root |
1.92 |
|
413 |
root |
1.94 |
Define an anonymous attachment and attach it to all objects of the given |
414 |
|
|
CLASS. See the next function for an explanation of its arguments. |
415 |
root |
1.92 |
|
416 |
root |
1.93 |
You can attach to global events by using the C<cf::global> class. |
417 |
root |
1.92 |
|
418 |
root |
1.94 |
Example, log all player logins: |
419 |
|
|
|
420 |
|
|
cf::player->attach ( |
421 |
|
|
on_login => sub { |
422 |
|
|
my ($pl) = @_; |
423 |
|
|
... |
424 |
|
|
}, |
425 |
|
|
); |
426 |
|
|
|
427 |
|
|
Example, attach to the jeweler skill: |
428 |
|
|
|
429 |
|
|
cf::object->attach ( |
430 |
|
|
type => cf::SKILL, |
431 |
|
|
subtype => cf::SK_JEWELER, |
432 |
|
|
on_use_skill => sub { |
433 |
|
|
my ($sk, $ob, $part, $dir, $msg) = @_; |
434 |
|
|
... |
435 |
|
|
}, |
436 |
|
|
); |
437 |
|
|
|
438 |
|
|
=item cf::CLASS::attachment $name, ... |
439 |
|
|
|
440 |
|
|
Register an attachment by C<$name> through which attachable objects of the |
441 |
|
|
given CLASS can refer to this attachment. |
442 |
|
|
|
443 |
|
|
Some classes such as crossfire maps and objects can specify attachments |
444 |
|
|
that are attached at load/instantiate time, thus the need for a name. |
445 |
|
|
|
446 |
|
|
These calls expect any number of the following handler/hook descriptions: |
447 |
root |
1.46 |
|
448 |
|
|
=over 4 |
449 |
|
|
|
450 |
|
|
=item prio => $number |
451 |
|
|
|
452 |
|
|
Set the priority for all following handlers/hooks (unless overwritten |
453 |
|
|
by another C<prio> setting). Lower priority handlers get executed |
454 |
|
|
earlier. The default priority is C<0>, and many built-in handlers are |
455 |
|
|
registered at priority C<-1000>, so lower priorities should not be used |
456 |
|
|
unless you know what you are doing. |
457 |
|
|
|
458 |
root |
1.93 |
=item type => $type |
459 |
|
|
|
460 |
|
|
(Only for C<< cf::object->attach >> calls), limits the attachment to the |
461 |
|
|
given type of objects only (the additional parameter C<subtype> can be |
462 |
|
|
used to further limit to the given subtype). |
463 |
|
|
|
464 |
root |
1.46 |
=item on_I<event> => \&cb |
465 |
|
|
|
466 |
|
|
Call the given code reference whenever the named event happens (event is |
467 |
|
|
something like C<instantiate>, C<apply>, C<use_skill> and so on, and which |
468 |
|
|
handlers are recognised generally depends on the type of object these |
469 |
|
|
handlers attach to). |
470 |
|
|
|
471 |
|
|
See F<include/eventinc.h> for the full list of events supported, and their |
472 |
|
|
class. |
473 |
|
|
|
474 |
|
|
=item package => package:: |
475 |
|
|
|
476 |
|
|
Look for sub functions of the name C<< on_I<event> >> in the given |
477 |
|
|
package and register them. Only handlers for eevents supported by the |
478 |
|
|
object/class are recognised. |
479 |
|
|
|
480 |
|
|
=back |
481 |
|
|
|
482 |
root |
1.94 |
Example, define an attachment called "sockpuppet" that calls the given |
483 |
|
|
event handler when a monster attacks: |
484 |
|
|
|
485 |
|
|
cf::object::attachment sockpuppet => |
486 |
|
|
on_skill_attack => sub { |
487 |
|
|
my ($self, $victim) = @_; |
488 |
|
|
... |
489 |
|
|
} |
490 |
|
|
} |
491 |
|
|
|
492 |
root |
1.96 |
=item $attachable->valid |
493 |
|
|
|
494 |
|
|
Just because you have a perl object does not mean that the corresponding |
495 |
|
|
C-level object still exists. If you try to access an object that has no |
496 |
|
|
valid C counterpart anymore you get an exception at runtime. This method |
497 |
|
|
can be used to test for existence of the C object part without causing an |
498 |
|
|
exception. |
499 |
|
|
|
500 |
root |
1.39 |
=cut |
501 |
|
|
|
502 |
root |
1.40 |
# the following variables are defined in .xs and must not be re-created |
503 |
root |
1.100 |
our @CB_GLOBAL = (); # registry for all global events |
504 |
|
|
our @CB_ATTACHABLE = (); # registry for all attachables |
505 |
|
|
our @CB_OBJECT = (); # all objects (should not be used except in emergency) |
506 |
|
|
our @CB_PLAYER = (); |
507 |
|
|
our @CB_CLIENT = (); |
508 |
|
|
our @CB_TYPE = (); # registry for type (cf-object class) based events |
509 |
|
|
our @CB_MAP = (); |
510 |
root |
1.39 |
|
511 |
root |
1.45 |
my %attachment; |
512 |
|
|
|
513 |
root |
1.93 |
sub _attach_cb($$$$) { |
514 |
|
|
my ($registry, $event, $prio, $cb) = @_; |
515 |
root |
1.39 |
|
516 |
|
|
use sort 'stable'; |
517 |
|
|
|
518 |
|
|
$cb = [$prio, $cb]; |
519 |
|
|
|
520 |
|
|
@{$registry->[$event]} = sort |
521 |
|
|
{ $a->[0] cmp $b->[0] } |
522 |
|
|
@{$registry->[$event] || []}, $cb; |
523 |
|
|
} |
524 |
|
|
|
525 |
root |
1.100 |
# hack |
526 |
|
|
my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP; |
527 |
|
|
|
528 |
root |
1.39 |
# attach handles attaching event callbacks |
529 |
|
|
# the only thing the caller has to do is pass the correct |
530 |
|
|
# registry (== where the callback attaches to). |
531 |
root |
1.93 |
sub _attach { |
532 |
root |
1.45 |
my ($registry, $klass, @arg) = @_; |
533 |
root |
1.39 |
|
534 |
root |
1.93 |
my $object_type; |
535 |
root |
1.39 |
my $prio = 0; |
536 |
|
|
my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; |
537 |
|
|
|
538 |
root |
1.100 |
#TODO: get rid of this hack |
539 |
|
|
if ($attachable_klass{$klass}) { |
540 |
|
|
%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT); |
541 |
|
|
} |
542 |
|
|
|
543 |
root |
1.45 |
while (@arg) { |
544 |
|
|
my $type = shift @arg; |
545 |
root |
1.39 |
|
546 |
|
|
if ($type eq "prio") { |
547 |
root |
1.45 |
$prio = shift @arg; |
548 |
root |
1.39 |
|
549 |
root |
1.93 |
} elsif ($type eq "type") { |
550 |
|
|
$object_type = shift @arg; |
551 |
|
|
$registry = $CB_TYPE[$object_type] ||= []; |
552 |
|
|
|
553 |
|
|
} elsif ($type eq "subtype") { |
554 |
|
|
defined $object_type or Carp::croak "subtype specified without type"; |
555 |
|
|
my $object_subtype = shift @arg; |
556 |
|
|
$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; |
557 |
|
|
|
558 |
root |
1.39 |
} elsif ($type eq "package") { |
559 |
root |
1.45 |
my $pkg = shift @arg; |
560 |
root |
1.39 |
|
561 |
|
|
while (my ($name, $id) = each %cb_id) { |
562 |
|
|
if (my $cb = $pkg->can ($name)) { |
563 |
root |
1.93 |
_attach_cb $registry, $id, $prio, $cb; |
564 |
root |
1.39 |
} |
565 |
|
|
} |
566 |
|
|
|
567 |
|
|
} elsif (exists $cb_id{$type}) { |
568 |
root |
1.93 |
_attach_cb $registry, $cb_id{$type}, $prio, shift @arg; |
569 |
root |
1.39 |
|
570 |
|
|
} elsif (ref $type) { |
571 |
|
|
warn "attaching objects not supported, ignoring.\n"; |
572 |
|
|
|
573 |
|
|
} else { |
574 |
root |
1.45 |
shift @arg; |
575 |
root |
1.39 |
warn "attach argument '$type' not supported, ignoring.\n"; |
576 |
|
|
} |
577 |
|
|
} |
578 |
|
|
} |
579 |
|
|
|
580 |
root |
1.93 |
sub _object_attach { |
581 |
root |
1.48 |
my ($obj, $name, %arg) = @_; |
582 |
root |
1.46 |
|
583 |
root |
1.55 |
return if exists $obj->{_attachment}{$name}; |
584 |
|
|
|
585 |
root |
1.46 |
if (my $attach = $attachment{$name}) { |
586 |
|
|
my $registry = $obj->registry; |
587 |
|
|
|
588 |
root |
1.47 |
for (@$attach) { |
589 |
|
|
my ($klass, @attach) = @$_; |
590 |
root |
1.93 |
_attach $registry, $klass, @attach; |
591 |
root |
1.47 |
} |
592 |
root |
1.46 |
|
593 |
root |
1.48 |
$obj->{$name} = \%arg; |
594 |
root |
1.46 |
} else { |
595 |
|
|
warn "object uses attachment '$name' that is not available, postponing.\n"; |
596 |
|
|
} |
597 |
|
|
|
598 |
root |
1.50 |
$obj->{_attachment}{$name} = undef; |
599 |
root |
1.46 |
} |
600 |
|
|
|
601 |
root |
1.93 |
sub cf::attachable::attach { |
602 |
|
|
if (ref $_[0]) { |
603 |
|
|
_object_attach @_; |
604 |
|
|
} else { |
605 |
|
|
_attach shift->_attach_registry, @_; |
606 |
|
|
} |
607 |
root |
1.55 |
}; |
608 |
root |
1.46 |
|
609 |
root |
1.54 |
# all those should be optimised |
610 |
root |
1.93 |
sub cf::attachable::detach { |
611 |
root |
1.54 |
my ($obj, $name) = @_; |
612 |
root |
1.46 |
|
613 |
root |
1.93 |
if (ref $obj) { |
614 |
|
|
delete $obj->{_attachment}{$name}; |
615 |
|
|
reattach ($obj); |
616 |
|
|
} else { |
617 |
|
|
Carp::croak "cannot, currently, detach class attachments"; |
618 |
|
|
} |
619 |
root |
1.55 |
}; |
620 |
|
|
|
621 |
root |
1.93 |
sub cf::attachable::attached { |
622 |
root |
1.55 |
my ($obj, $name) = @_; |
623 |
|
|
|
624 |
|
|
exists $obj->{_attachment}{$name} |
625 |
root |
1.39 |
} |
626 |
|
|
|
627 |
root |
1.100 |
for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) { |
628 |
root |
1.93 |
eval "#line " . __LINE__ . " 'cf.pm' |
629 |
|
|
sub cf::\L$klass\E::_attach_registry { |
630 |
|
|
(\\\@CB_$klass, KLASS_$klass) |
631 |
|
|
} |
632 |
root |
1.45 |
|
633 |
root |
1.93 |
sub cf::\L$klass\E::attachment { |
634 |
|
|
my \$name = shift; |
635 |
root |
1.39 |
|
636 |
root |
1.93 |
\$attachment{\$name} = [[KLASS_$klass, \@_]]; |
637 |
|
|
} |
638 |
|
|
"; |
639 |
|
|
die if $@; |
640 |
root |
1.52 |
} |
641 |
|
|
|
642 |
root |
1.39 |
our $override; |
643 |
root |
1.45 |
our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? |
644 |
root |
1.39 |
|
645 |
root |
1.45 |
sub override { |
646 |
|
|
$override = 1; |
647 |
|
|
@invoke_results = (); |
648 |
root |
1.39 |
} |
649 |
|
|
|
650 |
root |
1.45 |
sub do_invoke { |
651 |
root |
1.39 |
my $event = shift; |
652 |
root |
1.40 |
my $callbacks = shift; |
653 |
root |
1.39 |
|
654 |
root |
1.45 |
@invoke_results = (); |
655 |
|
|
|
656 |
root |
1.39 |
local $override; |
657 |
|
|
|
658 |
root |
1.40 |
for (@$callbacks) { |
659 |
root |
1.39 |
eval { &{$_->[1]} }; |
660 |
|
|
|
661 |
|
|
if ($@) { |
662 |
|
|
warn "$@"; |
663 |
root |
1.64 |
warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; |
664 |
root |
1.39 |
override; |
665 |
|
|
} |
666 |
|
|
|
667 |
|
|
return 1 if $override; |
668 |
|
|
} |
669 |
|
|
|
670 |
|
|
0 |
671 |
|
|
} |
672 |
|
|
|
673 |
root |
1.96 |
=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...) |
674 |
root |
1.55 |
|
675 |
root |
1.96 |
=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...) |
676 |
root |
1.55 |
|
677 |
root |
1.96 |
Generate an object-specific event with the given arguments. |
678 |
root |
1.55 |
|
679 |
root |
1.96 |
This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be |
680 |
root |
1.55 |
removed in future versions), and there is no public API to access override |
681 |
|
|
results (if you must, access C<@cf::invoke_results> directly). |
682 |
|
|
|
683 |
|
|
=back |
684 |
|
|
|
685 |
root |
1.71 |
=cut |
686 |
|
|
|
687 |
root |
1.70 |
############################################################################# |
688 |
root |
1.45 |
# object support |
689 |
|
|
|
690 |
root |
1.102 |
sub reattach { |
691 |
|
|
# basically do the same as instantiate, without calling instantiate |
692 |
|
|
my ($obj) = @_; |
693 |
|
|
|
694 |
|
|
my $registry = $obj->registry; |
695 |
|
|
|
696 |
|
|
@$registry = (); |
697 |
|
|
|
698 |
|
|
delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; |
699 |
|
|
|
700 |
|
|
for my $name (keys %{ $obj->{_attachment} || {} }) { |
701 |
|
|
if (my $attach = $attachment{$name}) { |
702 |
|
|
for (@$attach) { |
703 |
|
|
my ($klass, @attach) = @$_; |
704 |
|
|
_attach $registry, $klass, @attach; |
705 |
|
|
} |
706 |
|
|
} else { |
707 |
|
|
warn "object uses attachment '$name' that is not available, postponing.\n"; |
708 |
|
|
} |
709 |
|
|
} |
710 |
|
|
} |
711 |
|
|
|
712 |
root |
1.100 |
cf::attachable->attach ( |
713 |
|
|
prio => -1000000, |
714 |
|
|
on_instantiate => sub { |
715 |
|
|
my ($obj, $data) = @_; |
716 |
root |
1.45 |
|
717 |
root |
1.100 |
$data = from_json $data; |
718 |
root |
1.45 |
|
719 |
root |
1.100 |
for (@$data) { |
720 |
|
|
my ($name, $args) = @$_; |
721 |
root |
1.49 |
|
722 |
root |
1.100 |
$obj->attach ($name, %{$args || {} }); |
723 |
|
|
} |
724 |
|
|
}, |
725 |
root |
1.102 |
on_reattach => \&reattach, |
726 |
root |
1.100 |
on_clone => sub { |
727 |
|
|
my ($src, $dst) = @_; |
728 |
|
|
|
729 |
|
|
@{$dst->registry} = @{$src->registry}; |
730 |
|
|
|
731 |
|
|
%$dst = %$src; |
732 |
|
|
|
733 |
|
|
%{$dst->{_attachment}} = %{$src->{_attachment}} |
734 |
|
|
if exists $src->{_attachment}; |
735 |
|
|
}, |
736 |
|
|
); |
737 |
root |
1.45 |
|
738 |
root |
1.46 |
sub object_freezer_save { |
739 |
root |
1.59 |
my ($filename, $rdata, $objs) = @_; |
740 |
root |
1.46 |
|
741 |
root |
1.105 |
sync_job { |
742 |
|
|
if (length $$rdata) { |
743 |
|
|
warn sprintf "saving %s (%d,%d)\n", |
744 |
|
|
$filename, length $$rdata, scalar @$objs; |
745 |
root |
1.60 |
|
746 |
root |
1.105 |
if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { |
747 |
root |
1.60 |
chmod SAVE_MODE, $fh; |
748 |
root |
1.105 |
aio_write $fh, 0, (length $$rdata), $$rdata, 0; |
749 |
|
|
aio_fsync $fh; |
750 |
root |
1.60 |
close $fh; |
751 |
root |
1.105 |
|
752 |
|
|
if (@$objs) { |
753 |
|
|
if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { |
754 |
|
|
chmod SAVE_MODE, $fh; |
755 |
|
|
my $data = Storable::nfreeze { version => 1, objs => $objs }; |
756 |
|
|
aio_write $fh, 0, (length $data), $data, 0; |
757 |
|
|
aio_fsync $fh; |
758 |
|
|
close $fh; |
759 |
|
|
aio_rename "$filename.pst~", "$filename.pst"; |
760 |
|
|
} |
761 |
|
|
} else { |
762 |
|
|
aio_unlink "$filename.pst"; |
763 |
|
|
} |
764 |
|
|
|
765 |
|
|
aio_rename "$filename~", $filename; |
766 |
root |
1.60 |
} else { |
767 |
root |
1.105 |
warn "FATAL: $filename~: $!\n"; |
768 |
root |
1.60 |
} |
769 |
root |
1.59 |
} else { |
770 |
root |
1.105 |
aio_unlink $filename; |
771 |
|
|
aio_unlink "$filename.pst"; |
772 |
root |
1.59 |
} |
773 |
root |
1.45 |
} |
774 |
|
|
} |
775 |
|
|
|
776 |
root |
1.80 |
sub object_freezer_as_string { |
777 |
|
|
my ($rdata, $objs) = @_; |
778 |
|
|
|
779 |
|
|
use Data::Dumper; |
780 |
|
|
|
781 |
root |
1.81 |
$$rdata . Dumper $objs |
782 |
root |
1.80 |
} |
783 |
|
|
|
784 |
root |
1.46 |
sub object_thawer_load { |
785 |
|
|
my ($filename) = @_; |
786 |
|
|
|
787 |
root |
1.105 |
my ($data, $av); |
788 |
root |
1.61 |
|
789 |
root |
1.105 |
(aio_load $filename, $data) >= 0 |
790 |
|
|
or return; |
791 |
root |
1.61 |
|
792 |
root |
1.105 |
unless (aio_stat "$filename.pst") { |
793 |
|
|
(aio_load "$filename.pst", $av) >= 0 |
794 |
|
|
or return; |
795 |
|
|
$av = eval { (Storable::thaw <$av>)->{objs} }; |
796 |
root |
1.61 |
} |
797 |
root |
1.45 |
|
798 |
root |
1.105 |
return ($data, $av); |
799 |
root |
1.45 |
} |
800 |
|
|
|
801 |
|
|
############################################################################# |
802 |
root |
1.85 |
# command handling &c |
803 |
root |
1.39 |
|
804 |
root |
1.85 |
=item cf::register_command $name => \&callback($ob,$args); |
805 |
root |
1.1 |
|
806 |
root |
1.85 |
Register a callback for execution when the client sends the user command |
807 |
|
|
$name. |
808 |
root |
1.5 |
|
809 |
root |
1.85 |
=cut |
810 |
root |
1.5 |
|
811 |
root |
1.85 |
sub register_command { |
812 |
|
|
my ($name, $cb) = @_; |
813 |
root |
1.5 |
|
814 |
root |
1.85 |
my $caller = caller; |
815 |
|
|
#warn "registering command '$name/$time' to '$caller'"; |
816 |
root |
1.1 |
|
817 |
root |
1.85 |
push @{ $COMMAND{$name} }, [$caller, $cb]; |
818 |
root |
1.1 |
} |
819 |
|
|
|
820 |
root |
1.85 |
=item cf::register_extcmd $name => \&callback($pl,$packet); |
821 |
root |
1.1 |
|
822 |
root |
1.85 |
Register a callbackf ro execution when the client sends an extcmd packet. |
823 |
root |
1.1 |
|
824 |
root |
1.85 |
If the callback returns something, it is sent back as if reply was being |
825 |
|
|
called. |
826 |
root |
1.1 |
|
827 |
root |
1.85 |
=cut |
828 |
root |
1.1 |
|
829 |
root |
1.16 |
sub register_extcmd { |
830 |
|
|
my ($name, $cb) = @_; |
831 |
|
|
|
832 |
|
|
my $caller = caller; |
833 |
|
|
#warn "registering extcmd '$name' to '$caller'"; |
834 |
|
|
|
835 |
root |
1.85 |
$EXTCMD{$name} = [$cb, $caller]; |
836 |
root |
1.16 |
} |
837 |
|
|
|
838 |
root |
1.93 |
cf::player->attach ( |
839 |
root |
1.85 |
on_command => sub { |
840 |
|
|
my ($pl, $name, $params) = @_; |
841 |
|
|
|
842 |
|
|
my $cb = $COMMAND{$name} |
843 |
|
|
or return; |
844 |
|
|
|
845 |
|
|
for my $cmd (@$cb) { |
846 |
|
|
$cmd->[1]->($pl->ob, $params); |
847 |
|
|
} |
848 |
|
|
|
849 |
|
|
cf::override; |
850 |
|
|
}, |
851 |
|
|
on_extcmd => sub { |
852 |
|
|
my ($pl, $buf) = @_; |
853 |
|
|
|
854 |
|
|
my $msg = eval { from_json $buf }; |
855 |
|
|
|
856 |
|
|
if (ref $msg) { |
857 |
|
|
if (my $cb = $EXTCMD{$msg->{msgtype}}) { |
858 |
|
|
if (my %reply = $cb->[0]->($pl, $msg)) { |
859 |
|
|
$pl->ext_reply ($msg->{msgid}, %reply); |
860 |
|
|
} |
861 |
|
|
} |
862 |
|
|
} else { |
863 |
|
|
warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; |
864 |
|
|
} |
865 |
|
|
|
866 |
|
|
cf::override; |
867 |
|
|
}, |
868 |
root |
1.93 |
); |
869 |
root |
1.85 |
|
870 |
root |
1.6 |
sub register { |
871 |
|
|
my ($base, $pkg) = @_; |
872 |
|
|
|
873 |
root |
1.45 |
#TODO |
874 |
root |
1.6 |
} |
875 |
|
|
|
876 |
root |
1.1 |
sub load_extension { |
877 |
|
|
my ($path) = @_; |
878 |
|
|
|
879 |
|
|
$path =~ /([^\/\\]+)\.ext$/ or die "$path"; |
880 |
root |
1.5 |
my $base = $1; |
881 |
root |
1.1 |
my $pkg = $1; |
882 |
|
|
$pkg =~ s/[^[:word:]]/_/g; |
883 |
root |
1.41 |
$pkg = "ext::$pkg"; |
884 |
root |
1.1 |
|
885 |
|
|
warn "loading '$path' into '$pkg'\n"; |
886 |
|
|
|
887 |
|
|
open my $fh, "<:utf8", $path |
888 |
|
|
or die "$path: $!"; |
889 |
|
|
|
890 |
|
|
my $source = |
891 |
|
|
"package $pkg; use strict; use utf8;\n" |
892 |
|
|
. "#line 1 \"$path\"\n{\n" |
893 |
|
|
. (do { local $/; <$fh> }) |
894 |
|
|
. "\n};\n1"; |
895 |
|
|
|
896 |
|
|
eval $source |
897 |
root |
1.82 |
or die $@ ? "$path: $@\n" |
898 |
|
|
: "extension disabled.\n"; |
899 |
root |
1.1 |
|
900 |
|
|
push @exts, $pkg; |
901 |
root |
1.5 |
$ext_pkg{$base} = $pkg; |
902 |
root |
1.1 |
|
903 |
root |
1.6 |
# no strict 'refs'; |
904 |
root |
1.23 |
# @{"$pkg\::ISA"} = ext::; |
905 |
root |
1.1 |
|
906 |
root |
1.6 |
register $base, $pkg; |
907 |
root |
1.1 |
} |
908 |
|
|
|
909 |
|
|
sub unload_extension { |
910 |
|
|
my ($pkg) = @_; |
911 |
|
|
|
912 |
|
|
warn "removing extension $pkg\n"; |
913 |
|
|
|
914 |
|
|
# remove hooks |
915 |
root |
1.45 |
#TODO |
916 |
|
|
# for my $idx (0 .. $#PLUGIN_EVENT) { |
917 |
|
|
# delete $hook[$idx]{$pkg}; |
918 |
|
|
# } |
919 |
root |
1.1 |
|
920 |
|
|
# remove commands |
921 |
root |
1.85 |
for my $name (keys %COMMAND) { |
922 |
|
|
my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} }; |
923 |
root |
1.1 |
|
924 |
|
|
if (@cb) { |
925 |
root |
1.85 |
$COMMAND{$name} = \@cb; |
926 |
root |
1.1 |
} else { |
927 |
root |
1.85 |
delete $COMMAND{$name}; |
928 |
root |
1.1 |
} |
929 |
|
|
} |
930 |
|
|
|
931 |
root |
1.15 |
# remove extcmds |
932 |
root |
1.85 |
for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) { |
933 |
|
|
delete $EXTCMD{$name}; |
934 |
root |
1.15 |
} |
935 |
|
|
|
936 |
root |
1.43 |
if (my $cb = $pkg->can ("unload")) { |
937 |
elmex |
1.31 |
eval { |
938 |
|
|
$cb->($pkg); |
939 |
|
|
1 |
940 |
|
|
} or warn "$pkg unloaded, but with errors: $@"; |
941 |
|
|
} |
942 |
|
|
|
943 |
root |
1.1 |
Symbol::delete_package $pkg; |
944 |
|
|
} |
945 |
|
|
|
946 |
|
|
sub load_extensions { |
947 |
|
|
for my $ext (<$LIBDIR/*.ext>) { |
948 |
root |
1.3 |
next unless -r $ext; |
949 |
root |
1.2 |
eval { |
950 |
|
|
load_extension $ext; |
951 |
|
|
1 |
952 |
|
|
} or warn "$ext not loaded: $@"; |
953 |
root |
1.1 |
} |
954 |
|
|
} |
955 |
|
|
|
956 |
root |
1.8 |
############################################################################# |
957 |
|
|
# load/save/clean perl data associated with a map |
958 |
|
|
|
959 |
root |
1.39 |
*cf::mapsupport::on_clean = sub { |
960 |
root |
1.13 |
my ($map) = @_; |
961 |
root |
1.7 |
|
962 |
|
|
my $path = $map->tmpname; |
963 |
|
|
defined $path or return; |
964 |
|
|
|
965 |
root |
1.46 |
unlink "$path.pst"; |
966 |
root |
1.7 |
}; |
967 |
|
|
|
968 |
root |
1.93 |
cf::map->attach (prio => -10000, package => cf::mapsupport::); |
969 |
root |
1.39 |
|
970 |
root |
1.8 |
############################################################################# |
971 |
|
|
# load/save perl data associated with player->ob objects |
972 |
|
|
|
973 |
root |
1.33 |
sub all_objects(@) { |
974 |
|
|
@_, map all_objects ($_->inv), @_ |
975 |
|
|
} |
976 |
|
|
|
977 |
root |
1.60 |
# TODO: compatibility cruft, remove when no longer needed |
978 |
root |
1.93 |
cf::player->attach ( |
979 |
root |
1.39 |
on_load => sub { |
980 |
|
|
my ($pl, $path) = @_; |
981 |
|
|
|
982 |
|
|
for my $o (all_objects $pl->ob) { |
983 |
|
|
if (my $value = $o->get_ob_key_value ("_perl_data")) { |
984 |
|
|
$o->set_ob_key_value ("_perl_data"); |
985 |
root |
1.8 |
|
986 |
root |
1.39 |
%$o = %{ Storable::thaw pack "H*", $value }; |
987 |
|
|
} |
988 |
root |
1.11 |
} |
989 |
root |
1.39 |
}, |
990 |
root |
1.93 |
); |
991 |
root |
1.6 |
|
992 |
root |
1.22 |
############################################################################# |
993 |
root |
1.70 |
|
994 |
|
|
=head2 CORE EXTENSIONS |
995 |
|
|
|
996 |
|
|
Functions and methods that extend core crossfire objects. |
997 |
|
|
|
998 |
root |
1.95 |
=head3 cf::player |
999 |
|
|
|
1000 |
root |
1.70 |
=over 4 |
1001 |
root |
1.22 |
|
1002 |
root |
1.23 |
=item cf::player::exists $login |
1003 |
|
|
|
1004 |
|
|
Returns true when the given account exists. |
1005 |
|
|
|
1006 |
|
|
=cut |
1007 |
|
|
|
1008 |
|
|
sub cf::player::exists($) { |
1009 |
|
|
cf::player::find $_[0] |
1010 |
|
|
or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
1011 |
|
|
} |
1012 |
|
|
|
1013 |
root |
1.95 |
=item $player->ext_reply ($msgid, $msgtype, %msg) |
1014 |
|
|
|
1015 |
|
|
Sends an ext reply to the player. |
1016 |
|
|
|
1017 |
|
|
=cut |
1018 |
|
|
|
1019 |
|
|
sub cf::player::ext_reply($$$%) { |
1020 |
|
|
my ($self, $id, %msg) = @_; |
1021 |
|
|
|
1022 |
|
|
$msg{msgid} = $id; |
1023 |
|
|
|
1024 |
|
|
$self->send ("ext " . to_json \%msg); |
1025 |
|
|
} |
1026 |
|
|
|
1027 |
|
|
=back |
1028 |
|
|
|
1029 |
|
|
=head3 cf::object::player |
1030 |
|
|
|
1031 |
|
|
=over 4 |
1032 |
|
|
|
1033 |
root |
1.79 |
=item $player_object->reply ($npc, $msg[, $flags]) |
1034 |
root |
1.28 |
|
1035 |
|
|
Sends a message to the player, as if the npc C<$npc> replied. C<$npc> |
1036 |
|
|
can be C<undef>. Does the right thing when the player is currently in a |
1037 |
|
|
dialogue with the given NPC character. |
1038 |
|
|
|
1039 |
|
|
=cut |
1040 |
|
|
|
1041 |
root |
1.22 |
# rough implementation of a future "reply" method that works |
1042 |
|
|
# with dialog boxes. |
1043 |
root |
1.95 |
#TODO: the first argument must go, split into a $npc->reply_to ( method |
1044 |
root |
1.23 |
sub cf::object::player::reply($$$;$) { |
1045 |
|
|
my ($self, $npc, $msg, $flags) = @_; |
1046 |
|
|
|
1047 |
|
|
$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; |
1048 |
root |
1.22 |
|
1049 |
root |
1.24 |
if ($self->{record_replies}) { |
1050 |
|
|
push @{ $self->{record_replies} }, [$npc, $msg, $flags]; |
1051 |
|
|
} else { |
1052 |
|
|
$msg = $npc->name . " says: $msg" if $npc; |
1053 |
|
|
$self->message ($msg, $flags); |
1054 |
|
|
} |
1055 |
root |
1.22 |
} |
1056 |
|
|
|
1057 |
root |
1.79 |
=item $player_object->may ("access") |
1058 |
|
|
|
1059 |
|
|
Returns wether the given player is authorized to access resource "access" |
1060 |
|
|
(e.g. "command_wizcast"). |
1061 |
|
|
|
1062 |
|
|
=cut |
1063 |
|
|
|
1064 |
|
|
sub cf::object::player::may { |
1065 |
|
|
my ($self, $access) = @_; |
1066 |
|
|
|
1067 |
|
|
$self->flag (cf::FLAG_WIZ) || |
1068 |
|
|
(ref $cf::CFG{"may_$access"} |
1069 |
|
|
? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} |
1070 |
|
|
: $cf::CFG{"may_$access"}) |
1071 |
|
|
} |
1072 |
root |
1.70 |
|
1073 |
root |
1.95 |
=head3 cf::client |
1074 |
|
|
|
1075 |
|
|
=over 4 |
1076 |
|
|
|
1077 |
|
|
=item $client->send_drawinfo ($text, $flags) |
1078 |
|
|
|
1079 |
|
|
Sends a drawinfo packet to the client. Circumvents output buffering so |
1080 |
|
|
should not be used under normal circumstances. |
1081 |
|
|
|
1082 |
root |
1.70 |
=cut |
1083 |
|
|
|
1084 |
root |
1.95 |
sub cf::client::send_drawinfo { |
1085 |
|
|
my ($self, $text, $flags) = @_; |
1086 |
|
|
|
1087 |
|
|
utf8::encode $text; |
1088 |
|
|
$self->send_packet (sprintf "drawinfo %d %s", $flags, $text); |
1089 |
|
|
} |
1090 |
|
|
|
1091 |
|
|
|
1092 |
|
|
=item $success = $client->query ($flags, "text", \&cb) |
1093 |
|
|
|
1094 |
|
|
Queues a query to the client, calling the given callback with |
1095 |
|
|
the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, |
1096 |
|
|
C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. |
1097 |
|
|
|
1098 |
|
|
Queries can fail, so check the return code. Or don't, as queries will become |
1099 |
|
|
reliable at some point in the future. |
1100 |
|
|
|
1101 |
|
|
=cut |
1102 |
|
|
|
1103 |
|
|
sub cf::client::query { |
1104 |
|
|
my ($self, $flags, $text, $cb) = @_; |
1105 |
|
|
|
1106 |
|
|
return unless $self->state == ST_PLAYING |
1107 |
|
|
|| $self->state == ST_SETUP |
1108 |
|
|
|| $self->state == ST_CUSTOM; |
1109 |
|
|
|
1110 |
|
|
$self->state (ST_CUSTOM); |
1111 |
|
|
|
1112 |
|
|
utf8::encode $text; |
1113 |
|
|
push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; |
1114 |
|
|
|
1115 |
|
|
$self->send_packet ($self->{query_queue}[0][0]) |
1116 |
|
|
if @{ $self->{query_queue} } == 1; |
1117 |
|
|
} |
1118 |
|
|
|
1119 |
|
|
cf::client->attach ( |
1120 |
|
|
on_reply => sub { |
1121 |
|
|
my ($ns, $msg) = @_; |
1122 |
|
|
|
1123 |
|
|
# this weird shuffling is so that direct followup queries |
1124 |
|
|
# get handled first |
1125 |
|
|
my $queue = delete $ns->{query_queue}; |
1126 |
|
|
|
1127 |
|
|
(shift @$queue)->[1]->($msg); |
1128 |
|
|
|
1129 |
|
|
push @{ $ns->{query_queue} }, @$queue; |
1130 |
|
|
|
1131 |
|
|
if (@{ $ns->{query_queue} } == @$queue) { |
1132 |
|
|
if (@$queue) { |
1133 |
|
|
$ns->send_packet ($ns->{query_queue}[0][0]); |
1134 |
|
|
} else { |
1135 |
root |
1.98 |
$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; |
1136 |
root |
1.95 |
} |
1137 |
|
|
} |
1138 |
|
|
}, |
1139 |
|
|
); |
1140 |
|
|
|
1141 |
root |
1.96 |
=item $client->coro (\&cb) |
1142 |
|
|
|
1143 |
|
|
Create a new coroutine, running the specified callback. The coroutine will |
1144 |
|
|
be automatically cancelled when the client gets destroyed (e.g. on logout, |
1145 |
|
|
or loss of connection). |
1146 |
|
|
|
1147 |
|
|
=cut |
1148 |
|
|
|
1149 |
|
|
sub cf::client::coro { |
1150 |
|
|
my ($self, $cb) = @_; |
1151 |
|
|
|
1152 |
|
|
my $coro; $coro = async { |
1153 |
|
|
eval { |
1154 |
|
|
$cb->(); |
1155 |
|
|
}; |
1156 |
|
|
warn $@ if $@; |
1157 |
root |
1.103 |
}; |
1158 |
|
|
|
1159 |
|
|
$coro->on_destroy (sub { |
1160 |
root |
1.96 |
delete $self->{_coro}{$coro+0}; |
1161 |
root |
1.103 |
}); |
1162 |
root |
1.96 |
|
1163 |
|
|
$self->{_coro}{$coro+0} = $coro; |
1164 |
root |
1.103 |
|
1165 |
|
|
$coro |
1166 |
root |
1.96 |
} |
1167 |
|
|
|
1168 |
|
|
cf::client->attach ( |
1169 |
|
|
on_destroy => sub { |
1170 |
|
|
my ($ns) = @_; |
1171 |
|
|
|
1172 |
root |
1.97 |
$_->cancel for values %{ (delete $ns->{_coro}) || {} }; |
1173 |
root |
1.96 |
}, |
1174 |
|
|
); |
1175 |
|
|
|
1176 |
root |
1.95 |
=back |
1177 |
|
|
|
1178 |
root |
1.70 |
|
1179 |
|
|
=head2 SAFE SCRIPTING |
1180 |
|
|
|
1181 |
|
|
Functions that provide a safe environment to compile and execute |
1182 |
|
|
snippets of perl code without them endangering the safety of the server |
1183 |
|
|
itself. Looping constructs, I/O operators and other built-in functionality |
1184 |
|
|
is not available in the safe scripting environment, and the number of |
1185 |
root |
1.79 |
functions and methods that can be called is greatly reduced. |
1186 |
root |
1.70 |
|
1187 |
|
|
=cut |
1188 |
root |
1.23 |
|
1189 |
root |
1.42 |
our $safe = new Safe "safe"; |
1190 |
root |
1.23 |
our $safe_hole = new Safe::Hole; |
1191 |
|
|
|
1192 |
|
|
$SIG{FPE} = 'IGNORE'; |
1193 |
|
|
|
1194 |
|
|
$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
1195 |
|
|
|
1196 |
root |
1.25 |
# here we export the classes and methods available to script code |
1197 |
|
|
|
1198 |
root |
1.70 |
=pod |
1199 |
|
|
|
1200 |
|
|
The following fucntions and emthods are available within a safe environment: |
1201 |
|
|
|
1202 |
elmex |
1.91 |
cf::object contr pay_amount pay_player map |
1203 |
root |
1.70 |
cf::object::player player |
1204 |
|
|
cf::player peaceful |
1205 |
elmex |
1.91 |
cf::map trigger |
1206 |
root |
1.70 |
|
1207 |
|
|
=cut |
1208 |
|
|
|
1209 |
root |
1.25 |
for ( |
1210 |
elmex |
1.91 |
["cf::object" => qw(contr pay_amount pay_player map)], |
1211 |
root |
1.25 |
["cf::object::player" => qw(player)], |
1212 |
|
|
["cf::player" => qw(peaceful)], |
1213 |
elmex |
1.91 |
["cf::map" => qw(trigger)], |
1214 |
root |
1.25 |
) { |
1215 |
|
|
no strict 'refs'; |
1216 |
|
|
my ($pkg, @funs) = @$_; |
1217 |
root |
1.41 |
*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
1218 |
root |
1.25 |
for @funs; |
1219 |
|
|
} |
1220 |
root |
1.23 |
|
1221 |
root |
1.70 |
=over 4 |
1222 |
|
|
|
1223 |
|
|
=item @retval = safe_eval $code, [var => value, ...] |
1224 |
|
|
|
1225 |
|
|
Compiled and executes the given perl code snippet. additional var/value |
1226 |
|
|
pairs result in temporary local (my) scalar variables of the given name |
1227 |
|
|
that are available in the code snippet. Example: |
1228 |
|
|
|
1229 |
|
|
my $five = safe_eval '$first + $second', first => 1, second => 4; |
1230 |
|
|
|
1231 |
|
|
=cut |
1232 |
|
|
|
1233 |
root |
1.23 |
sub safe_eval($;@) { |
1234 |
|
|
my ($code, %vars) = @_; |
1235 |
|
|
|
1236 |
|
|
my $qcode = $code; |
1237 |
|
|
$qcode =~ s/"/‟/g; # not allowed in #line filenames |
1238 |
|
|
$qcode =~ s/\n/\\n/g; |
1239 |
|
|
|
1240 |
|
|
local $_; |
1241 |
root |
1.41 |
local @safe::cf::_safe_eval_args = values %vars; |
1242 |
root |
1.23 |
|
1243 |
root |
1.42 |
my $eval = |
1244 |
root |
1.23 |
"do {\n" |
1245 |
|
|
. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" |
1246 |
|
|
. "#line 0 \"{$qcode}\"\n" |
1247 |
|
|
. $code |
1248 |
|
|
. "\n}" |
1249 |
root |
1.25 |
; |
1250 |
|
|
|
1251 |
|
|
sub_generation_inc; |
1252 |
root |
1.42 |
my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); |
1253 |
root |
1.25 |
sub_generation_inc; |
1254 |
|
|
|
1255 |
root |
1.42 |
if ($@) { |
1256 |
|
|
warn "$@"; |
1257 |
|
|
warn "while executing safe code '$code'\n"; |
1258 |
|
|
warn "with arguments " . (join " ", %vars) . "\n"; |
1259 |
|
|
} |
1260 |
|
|
|
1261 |
root |
1.25 |
wantarray ? @res : $res[0] |
1262 |
root |
1.23 |
} |
1263 |
|
|
|
1264 |
root |
1.69 |
=item cf::register_script_function $function => $cb |
1265 |
|
|
|
1266 |
|
|
Register a function that can be called from within map/npc scripts. The |
1267 |
|
|
function should be reasonably secure and should be put into a package name |
1268 |
|
|
like the extension. |
1269 |
|
|
|
1270 |
|
|
Example: register a function that gets called whenever a map script calls |
1271 |
|
|
C<rent::overview>, as used by the C<rent> extension. |
1272 |
|
|
|
1273 |
|
|
cf::register_script_function "rent::overview" => sub { |
1274 |
|
|
... |
1275 |
|
|
}; |
1276 |
|
|
|
1277 |
|
|
=cut |
1278 |
|
|
|
1279 |
root |
1.23 |
sub register_script_function { |
1280 |
|
|
my ($fun, $cb) = @_; |
1281 |
|
|
|
1282 |
|
|
no strict 'refs'; |
1283 |
root |
1.41 |
*{"safe::$fun"} = $safe_hole->wrap ($cb); |
1284 |
root |
1.23 |
} |
1285 |
|
|
|
1286 |
root |
1.70 |
=back |
1287 |
|
|
|
1288 |
root |
1.71 |
=cut |
1289 |
|
|
|
1290 |
root |
1.23 |
############################################################################# |
1291 |
root |
1.65 |
|
1292 |
|
|
=head2 EXTENSION DATABASE SUPPORT |
1293 |
|
|
|
1294 |
|
|
Crossfire maintains a very simple database for extension use. It can |
1295 |
|
|
currently store anything that can be serialised using Storable, which |
1296 |
|
|
excludes objects. |
1297 |
|
|
|
1298 |
|
|
The parameter C<$family> should best start with the name of the extension |
1299 |
|
|
using it, it should be unique. |
1300 |
|
|
|
1301 |
|
|
=over 4 |
1302 |
|
|
|
1303 |
|
|
=item $hashref = cf::db_get $family |
1304 |
|
|
|
1305 |
|
|
Return a hashref for use by the extension C<$family>, which can be |
1306 |
|
|
modified. After modifications, you have to call C<cf::db_dirty> or |
1307 |
|
|
C<cf::db_sync>. |
1308 |
|
|
|
1309 |
|
|
=item $value = cf::db_get $family => $key |
1310 |
|
|
|
1311 |
|
|
Returns a single value from the database |
1312 |
|
|
|
1313 |
|
|
=item cf::db_put $family => $hashref |
1314 |
|
|
|
1315 |
|
|
Stores the given family hashref into the database. Updates are delayed, if |
1316 |
|
|
you want the data to be synced to disk immediately, use C<cf::db_sync>. |
1317 |
|
|
|
1318 |
|
|
=item cf::db_put $family => $key => $value |
1319 |
|
|
|
1320 |
|
|
Stores the given C<$value> in the family hash. Updates are delayed, if you |
1321 |
|
|
want the data to be synced to disk immediately, use C<cf::db_sync>. |
1322 |
|
|
|
1323 |
|
|
=item cf::db_dirty |
1324 |
|
|
|
1325 |
|
|
Marks the database as dirty, to be updated at a later time. |
1326 |
|
|
|
1327 |
|
|
=item cf::db_sync |
1328 |
|
|
|
1329 |
|
|
Immediately write the database to disk I<if it is dirty>. |
1330 |
|
|
|
1331 |
|
|
=cut |
1332 |
|
|
|
1333 |
root |
1.78 |
our $DB; |
1334 |
|
|
|
1335 |
root |
1.65 |
{ |
1336 |
root |
1.66 |
my $path = cf::localdir . "/database.pst"; |
1337 |
root |
1.65 |
|
1338 |
|
|
sub db_load() { |
1339 |
|
|
warn "loading database $path\n";#d# remove later |
1340 |
root |
1.78 |
$DB = stat $path ? Storable::retrieve $path : { }; |
1341 |
root |
1.65 |
} |
1342 |
|
|
|
1343 |
|
|
my $pid; |
1344 |
|
|
|
1345 |
|
|
sub db_save() { |
1346 |
|
|
warn "saving database $path\n";#d# remove later |
1347 |
|
|
waitpid $pid, 0 if $pid; |
1348 |
root |
1.67 |
if (0 == ($pid = fork)) { |
1349 |
root |
1.78 |
$DB->{_meta}{version} = 1; |
1350 |
|
|
Storable::nstore $DB, "$path~"; |
1351 |
root |
1.65 |
rename "$path~", $path; |
1352 |
|
|
cf::_exit 0 if defined $pid; |
1353 |
|
|
} |
1354 |
|
|
} |
1355 |
|
|
|
1356 |
|
|
my $dirty; |
1357 |
|
|
|
1358 |
|
|
sub db_sync() { |
1359 |
|
|
db_save if $dirty; |
1360 |
|
|
undef $dirty; |
1361 |
|
|
} |
1362 |
|
|
|
1363 |
root |
1.87 |
my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub { |
1364 |
root |
1.65 |
db_sync; |
1365 |
|
|
}); |
1366 |
|
|
|
1367 |
|
|
sub db_dirty() { |
1368 |
|
|
$dirty = 1; |
1369 |
|
|
$idle->start; |
1370 |
|
|
} |
1371 |
|
|
|
1372 |
|
|
sub db_get($;$) { |
1373 |
|
|
@_ >= 2 |
1374 |
root |
1.78 |
? $DB->{$_[0]}{$_[1]} |
1375 |
|
|
: ($DB->{$_[0]} ||= { }) |
1376 |
root |
1.65 |
} |
1377 |
|
|
|
1378 |
|
|
sub db_put($$;$) { |
1379 |
|
|
if (@_ >= 3) { |
1380 |
root |
1.78 |
$DB->{$_[0]}{$_[1]} = $_[2]; |
1381 |
root |
1.65 |
} else { |
1382 |
root |
1.78 |
$DB->{$_[0]} = $_[1]; |
1383 |
root |
1.65 |
} |
1384 |
|
|
db_dirty; |
1385 |
|
|
} |
1386 |
root |
1.67 |
|
1387 |
root |
1.93 |
cf::global->attach ( |
1388 |
|
|
prio => 10000, |
1389 |
root |
1.67 |
on_cleanup => sub { |
1390 |
|
|
db_sync; |
1391 |
|
|
}, |
1392 |
root |
1.93 |
); |
1393 |
root |
1.65 |
} |
1394 |
|
|
|
1395 |
|
|
############################################################################# |
1396 |
root |
1.34 |
# the server's main() |
1397 |
|
|
|
1398 |
root |
1.73 |
sub cfg_load { |
1399 |
root |
1.72 |
open my $fh, "<:utf8", cf::confdir . "/config" |
1400 |
|
|
or return; |
1401 |
|
|
|
1402 |
|
|
local $/; |
1403 |
|
|
*CFG = YAML::Syck::Load <$fh>; |
1404 |
|
|
} |
1405 |
|
|
|
1406 |
root |
1.39 |
sub main { |
1407 |
root |
1.108 |
# we must not ever block the main coroutine |
1408 |
|
|
local $Coro::idle = sub { |
1409 |
|
|
Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# |
1410 |
|
|
(Coro::unblock_sub { |
1411 |
|
|
Event::one_event; |
1412 |
|
|
})->(); |
1413 |
|
|
}; |
1414 |
|
|
|
1415 |
root |
1.73 |
cfg_load; |
1416 |
root |
1.65 |
db_load; |
1417 |
root |
1.61 |
load_extensions; |
1418 |
root |
1.34 |
Event::loop; |
1419 |
|
|
} |
1420 |
|
|
|
1421 |
|
|
############################################################################# |
1422 |
root |
1.22 |
# initialisation |
1423 |
|
|
|
1424 |
root |
1.107 |
sub perl_reload() { |
1425 |
root |
1.106 |
# can/must only be called in main |
1426 |
|
|
if ($Coro::current != $Coro::main) { |
1427 |
|
|
warn "can only reload from main coroutine\n"; |
1428 |
|
|
return; |
1429 |
|
|
} |
1430 |
|
|
|
1431 |
root |
1.103 |
warn "reloading..."; |
1432 |
|
|
|
1433 |
root |
1.106 |
local $FREEZE = 1; |
1434 |
|
|
cf::emergency_save; |
1435 |
|
|
|
1436 |
root |
1.103 |
eval { |
1437 |
root |
1.106 |
# if anything goes wrong in here, we should simply crash as we already saved |
1438 |
root |
1.65 |
|
1439 |
|
|
# cancel all watchers |
1440 |
root |
1.87 |
for (Event::all_watchers) { |
1441 |
|
|
$_->cancel if $_->data & WF_AUTOCANCEL; |
1442 |
|
|
} |
1443 |
root |
1.65 |
|
1444 |
root |
1.103 |
# cancel all extension coros |
1445 |
|
|
$_->cancel for values %EXT_CORO; |
1446 |
|
|
%EXT_CORO = (); |
1447 |
|
|
|
1448 |
root |
1.65 |
# unload all extensions |
1449 |
|
|
for (@exts) { |
1450 |
root |
1.103 |
warn "unloading <$_>"; |
1451 |
root |
1.65 |
unload_extension $_; |
1452 |
|
|
} |
1453 |
|
|
|
1454 |
|
|
# unload all modules loaded from $LIBDIR |
1455 |
|
|
while (my ($k, $v) = each %INC) { |
1456 |
|
|
next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
1457 |
|
|
|
1458 |
root |
1.103 |
warn "removing <$k>"; |
1459 |
root |
1.65 |
delete $INC{$k}; |
1460 |
|
|
|
1461 |
|
|
$k =~ s/\.pm$//; |
1462 |
|
|
$k =~ s/\//::/g; |
1463 |
|
|
|
1464 |
|
|
if (my $cb = $k->can ("unload_module")) { |
1465 |
|
|
$cb->(); |
1466 |
|
|
} |
1467 |
|
|
|
1468 |
|
|
Symbol::delete_package $k; |
1469 |
|
|
} |
1470 |
|
|
|
1471 |
|
|
# sync database to disk |
1472 |
|
|
cf::db_sync; |
1473 |
root |
1.103 |
IO::AIO::flush; |
1474 |
root |
1.65 |
|
1475 |
|
|
# get rid of safe::, as good as possible |
1476 |
|
|
Symbol::delete_package "safe::$_" |
1477 |
root |
1.103 |
for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); |
1478 |
root |
1.65 |
|
1479 |
|
|
# remove register_script_function callbacks |
1480 |
|
|
# TODO |
1481 |
|
|
|
1482 |
|
|
# unload cf.pm "a bit" |
1483 |
|
|
delete $INC{"cf.pm"}; |
1484 |
|
|
|
1485 |
|
|
# don't, removes xs symbols, too, |
1486 |
|
|
# and global variables created in xs |
1487 |
|
|
#Symbol::delete_package __PACKAGE__; |
1488 |
|
|
|
1489 |
|
|
# reload cf.pm |
1490 |
root |
1.103 |
warn "reloading cf.pm"; |
1491 |
root |
1.65 |
require cf; |
1492 |
root |
1.100 |
cf::_connect_to_perl; # nominally unnecessary, but cannot hurt |
1493 |
|
|
|
1494 |
root |
1.73 |
# load config and database again |
1495 |
|
|
cf::cfg_load; |
1496 |
root |
1.65 |
cf::db_load; |
1497 |
|
|
|
1498 |
|
|
# load extensions |
1499 |
root |
1.103 |
warn "load extensions"; |
1500 |
root |
1.65 |
cf::load_extensions; |
1501 |
|
|
|
1502 |
|
|
# reattach attachments to objects |
1503 |
root |
1.103 |
warn "reattach"; |
1504 |
root |
1.65 |
_global_reattach; |
1505 |
|
|
}; |
1506 |
|
|
|
1507 |
root |
1.106 |
if ($@) { |
1508 |
|
|
warn $@; |
1509 |
|
|
warn "error while reloading, exiting."; |
1510 |
|
|
exit 1; |
1511 |
|
|
} |
1512 |
|
|
|
1513 |
|
|
warn "reloaded successfully"; |
1514 |
root |
1.65 |
}; |
1515 |
|
|
|
1516 |
root |
1.108 |
############################################################################# |
1517 |
|
|
|
1518 |
|
|
unless ($LINK_MAP) { |
1519 |
|
|
$LINK_MAP = cf::map::new; |
1520 |
|
|
|
1521 |
|
|
$LINK_MAP->width (41); |
1522 |
|
|
$LINK_MAP->height (41); |
1523 |
|
|
$LINK_MAP->alloc; |
1524 |
|
|
$LINK_MAP->path ("{link}"); |
1525 |
|
|
$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; |
1526 |
|
|
$LINK_MAP->in_memory (MAP_IN_MEMORY); |
1527 |
|
|
} |
1528 |
|
|
|
1529 |
root |
1.85 |
register "<global>", __PACKAGE__; |
1530 |
|
|
|
1531 |
|
|
register_command "perl-reload" => sub { |
1532 |
root |
1.65 |
my ($who, $arg) = @_; |
1533 |
|
|
|
1534 |
|
|
if ($who->flag (FLAG_WIZ)) { |
1535 |
root |
1.107 |
$who->message ("start of reload."); |
1536 |
|
|
perl_reload; |
1537 |
|
|
$who->message ("end of reload."); |
1538 |
root |
1.65 |
} |
1539 |
|
|
}; |
1540 |
|
|
|
1541 |
root |
1.27 |
unshift @INC, $LIBDIR; |
1542 |
root |
1.17 |
|
1543 |
root |
1.35 |
$TICK_WATCHER = Event->timer ( |
1544 |
root |
1.104 |
reentrant => 0, |
1545 |
|
|
prio => 0, |
1546 |
|
|
at => $NEXT_TICK || $TICK, |
1547 |
|
|
data => WF_AUTOCANCEL, |
1548 |
|
|
cb => sub { |
1549 |
root |
1.103 |
unless ($FREEZE) { |
1550 |
|
|
cf::server_tick; # one server iteration |
1551 |
|
|
$RUNTIME += $TICK; |
1552 |
|
|
} |
1553 |
root |
1.35 |
|
1554 |
|
|
$NEXT_TICK += $TICK; |
1555 |
|
|
|
1556 |
root |
1.78 |
# if we are delayed by four ticks or more, skip them all |
1557 |
root |
1.103 |
$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; |
1558 |
root |
1.35 |
|
1559 |
|
|
$TICK_WATCHER->at ($NEXT_TICK); |
1560 |
|
|
$TICK_WATCHER->start; |
1561 |
|
|
}, |
1562 |
|
|
); |
1563 |
|
|
|
1564 |
root |
1.80 |
IO::AIO::max_poll_time $TICK * 0.2; |
1565 |
root |
1.77 |
|
1566 |
root |
1.108 |
Event->io ( |
1567 |
|
|
fd => IO::AIO::poll_fileno, |
1568 |
|
|
poll => 'r', |
1569 |
|
|
prio => 5, |
1570 |
|
|
data => WF_AUTOCANCEL, |
1571 |
|
|
cb => \&IO::AIO::poll_cb, |
1572 |
|
|
); |
1573 |
|
|
|
1574 |
|
|
Event->timer ( |
1575 |
|
|
data => WF_AUTOCANCEL, |
1576 |
|
|
after => 0, |
1577 |
|
|
interval => 10, |
1578 |
|
|
cb => sub { |
1579 |
|
|
(Coro::unblock_sub { |
1580 |
|
|
write_runtime |
1581 |
|
|
or warn "ERROR: unable to write runtime file: $!"; |
1582 |
|
|
})->(); |
1583 |
|
|
}, |
1584 |
|
|
); |
1585 |
root |
1.103 |
|
1586 |
root |
1.1 |
1 |
1587 |
|
|
|