1 | package cf; |
1 | package cf; |
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2 | |
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3 | use utf8; |
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4 | use strict; |
2 | |
5 | |
3 | use Symbol; |
6 | use Symbol; |
4 | use List::Util; |
7 | use List::Util; |
5 | use Storable; |
8 | use Storable; |
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9 | use Opcode; |
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10 | use Safe; |
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11 | use Safe::Hole; |
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12 | |
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13 | use Coro 3.3; |
6 | use Event; |
14 | use Coro::Event; |
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15 | use Coro::Timer; |
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16 | use Coro::Signal; |
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17 | use Coro::Semaphore; |
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18 | use Coro::AIO; |
7 | |
19 | |
8 | use strict; |
20 | use Digest::MD5; |
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21 | use Fcntl; |
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22 | use IO::AIO 2.31 (); |
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23 | use YAML::Syck (); |
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24 | use Time::HiRes; |
9 | |
25 | |
10 | our %COMMAND; |
26 | use Event; $Event::Eval = 1; # no idea why this is required, but it is |
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27 | |
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28 | # work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? |
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29 | $YAML::Syck::ImplicitUnicode = 1; |
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30 | |
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31 | $Coro::main->prio (2); # run main coroutine ("the server") with very high priority |
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32 | |
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33 | sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload |
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34 | |
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35 | our %COMMAND = (); |
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36 | our %COMMAND_TIME = (); |
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37 | our %EXTCMD = (); |
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38 | |
11 | our @EVENT; |
39 | our @EVENT; |
12 | our %PROP_TYPE; |
40 | our $LIBDIR = datadir . "/ext"; |
13 | our %PROP_IDX; |
41 | |
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42 | our $TICK = MAX_TIME * 1e-6; |
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43 | our $TICK_WATCHER; |
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44 | our $NEXT_TICK; |
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45 | our $NOW; |
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46 | |
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47 | our %CFG; |
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48 | |
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49 | our $UPTIME; $UPTIME ||= time; |
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50 | our $RUNTIME; |
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51 | |
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52 | our %MAP; # all maps |
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53 | our $LINK_MAP; # the special {link} map |
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54 | our $FREEZE; |
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55 | our $RANDOM_MAPS = cf::localdir . "/random"; |
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56 | our %EXT_CORO; |
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57 | |
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58 | binmode STDOUT; |
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59 | binmode STDERR; |
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60 | |
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61 | # read virtual server time, if available |
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62 | unless ($RUNTIME || !-e cf::localdir . "/runtime") { |
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63 | open my $fh, "<", cf::localdir . "/runtime" |
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64 | or die "unable to read runtime file: $!"; |
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65 | $RUNTIME = <$fh> + 0.; |
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66 | } |
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67 | |
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68 | mkdir cf::localdir; |
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69 | mkdir cf::localdir . "/" . cf::playerdir; |
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70 | mkdir cf::localdir . "/" . cf::tmpdir; |
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71 | mkdir cf::localdir . "/" . cf::uniquedir; |
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72 | mkdir $RANDOM_MAPS; |
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73 | |
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74 | # a special map that is always available |
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75 | our $LINK_MAP; |
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76 | |
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77 | our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37]; |
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78 | |
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79 | ############################################################################# |
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80 | |
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81 | =head2 GLOBAL VARIABLES |
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82 | |
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83 | =over 4 |
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84 | |
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85 | =item $cf::UPTIME |
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86 | |
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87 | The timestamp of the server start (so not actually an uptime). |
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88 | |
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89 | =item $cf::RUNTIME |
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90 | |
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91 | The time this server has run, starts at 0 and is increased by $cf::TICK on |
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92 | every server tick. |
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93 | |
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94 | =item $cf::LIBDIR |
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95 | |
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96 | The perl library directory, where extensions and cf-specific modules can |
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97 | be found. It will be added to C<@INC> automatically. |
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98 | |
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99 | =item $cf::NOW |
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100 | |
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101 | The time of the last (current) server tick. |
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102 | |
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103 | =item $cf::TICK |
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104 | |
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105 | The interval between server ticks, in seconds. |
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106 | |
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107 | =item %cf::CFG |
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108 | |
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109 | Configuration for the server, loaded from C</etc/crossfire/config>, or |
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110 | from wherever your confdir points to. |
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111 | |
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112 | =back |
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113 | |
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114 | =cut |
14 | |
115 | |
15 | BEGIN { |
116 | BEGIN { |
16 | @EVENT = map lc, @EVENT; |
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17 | |
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18 | *CORE::GLOBAL::warn = sub { |
117 | *CORE::GLOBAL::warn = sub { |
19 | my $msg = join "", @_; |
118 | my $msg = join "", @_; |
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119 | utf8::encode $msg; |
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120 | |
20 | $msg .= "\n" |
121 | $msg .= "\n" |
21 | unless $msg =~ /\n$/; |
122 | unless $msg =~ /\n$/; |
22 | |
123 | |
23 | print STDERR "cfperl: $msg"; |
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24 | LOG llevError, "cfperl: $msg"; |
124 | LOG llevError, "cfperl: $msg"; |
25 | }; |
125 | }; |
26 | } |
126 | } |
27 | |
127 | |
28 | my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply! |
128 | @safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; |
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129 | @safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; |
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130 | @safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; |
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131 | @safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; |
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132 | @safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; |
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133 | @safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
29 | |
134 | |
30 | # generate property mutators |
135 | # we bless all objects into (empty) derived classes to force a method lookup |
31 | sub prop_gen { |
136 | # within the Safe compartment. |
32 | my ($prefix, $class) = @_; |
137 | for my $pkg (qw( |
33 | |
138 | cf::global cf::attachable |
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139 | cf::object cf::object::player |
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140 | cf::client cf::player |
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141 | cf::arch cf::living |
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142 | cf::map cf::party cf::region |
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143 | )) { |
34 | no strict 'refs'; |
144 | no strict 'refs'; |
35 | |
145 | @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; |
36 | for my $prop (keys %PROP_TYPE) { |
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37 | $prop =~ /^\Q$prefix\E_(.*$)/ or next; |
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38 | my $sub = lc $1; |
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39 | |
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40 | my $type = $PROP_TYPE{$prop}; |
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41 | my $idx = $PROP_IDX {$prop}; |
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42 | |
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43 | *{"$class\::get_$sub"} = *{"$class\::$sub"} = sub { |
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44 | $_[0]->get_property ($type, $idx) |
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45 | }; |
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46 | |
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47 | *{"$class\::set_$sub"} = sub { |
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48 | $_[0]->set_property ($type, $idx, $_[1]); |
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49 | } unless $ignore_set{$prop}; |
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50 | } |
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51 | } |
146 | } |
52 | |
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53 | # auto-generate most of the API |
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54 | |
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55 | prop_gen OBJECT_PROP => "cf::object"; |
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56 | # CFAPI_OBJECT_ANIMATION? |
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57 | prop_gen PLAYER_PROP => "cf::object::player"; |
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58 | |
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59 | prop_gen MAP_PROP => "cf::map"; |
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60 | prop_gen ARCH_PROP => "cf::arch"; |
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61 | |
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62 | # guessed hierarchies |
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63 | |
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64 | @cf::object::player::ISA = 'cf::object'; |
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65 | @cf::object::map::ISA = 'cf::object'; |
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66 | |
147 | |
67 | $Event::DIED = sub { |
148 | $Event::DIED = sub { |
68 | warn "error in event callback: @_"; |
149 | warn "error in event callback: @_"; |
69 | }; |
150 | }; |
70 | |
151 | |
71 | my %ext_pkg; |
152 | my %ext_pkg; |
72 | my @exts; |
153 | my @exts; |
73 | my @hook; |
154 | my @hook; |
74 | my %command; |
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75 | my %extcmd; |
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76 | |
155 | |
77 | sub inject_event { |
156 | =head2 UTILITY FUNCTIONS |
78 | my $extension = shift; |
157 | |
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158 | =over 4 |
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159 | |
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160 | =cut |
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161 | |
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162 | use JSON::Syck (); # TODO# replace by JSON::PC once working |
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163 | |
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164 | =item $ref = cf::from_json $json |
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165 | |
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166 | Converts a JSON string into the corresponding perl data structure. |
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167 | |
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168 | =cut |
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169 | |
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170 | sub from_json($) { |
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171 | $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs |
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172 | JSON::Syck::Load $_[0] |
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173 | } |
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174 | |
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175 | =item $json = cf::to_json $ref |
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176 | |
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177 | Converts a perl data structure into its JSON representation. |
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178 | |
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179 | =cut |
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180 | |
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181 | sub to_json($) { |
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182 | $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs |
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183 | JSON::Syck::Dump $_[0] |
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184 | } |
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185 | |
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186 | =item cf::sync_job { BLOCK } |
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187 | |
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188 | The design of crossfire+ requires that the main coro ($Coro::main) is |
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189 | always able to handle events or runnable, as crossfire+ is only partly |
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190 | reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. |
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191 | |
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192 | If it must be done, put the blocking parts into C<sync_job>. This will run |
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193 | the given BLOCK in another coroutine while waiting for the result. The |
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194 | server will be frozen during this time, so the block should either finish |
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195 | fast or be very important. |
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196 | |
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197 | =cut |
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198 | |
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199 | sub sync_job(&) { |
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200 | my ($job) = @_; |
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201 | |
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202 | my $busy = 1; |
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203 | my @res; |
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204 | |
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205 | my $coro = Coro::async { |
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206 | @res = eval { $job->() }; |
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207 | warn $@ if $@; |
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208 | undef $busy; |
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209 | }; |
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210 | |
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211 | if ($Coro::current == $Coro::main) { |
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212 | # TODO: use suspend/resume instead |
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213 | local $FREEZE = 1; |
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214 | $coro->prio (Coro::PRIO_MAX); |
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215 | while ($busy) { |
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216 | Coro::cede_notself; |
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217 | Event::one_event unless Coro::nready; |
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218 | } |
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219 | } else { |
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220 | $coro->join; |
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221 | } |
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222 | |
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223 | wantarray ? @res : $res[0] |
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224 | } |
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225 | |
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226 | =item $coro = cf::coro { BLOCK } |
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227 | |
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228 | Creates and returns a new coro. This coro is automcatially being canceled |
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229 | when the extension calling this is being unloaded. |
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230 | |
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231 | =cut |
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232 | |
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233 | sub coro(&) { |
79 | my $event_code = shift; |
234 | my $cb = shift; |
80 | |
235 | |
81 | my $cb = $hook[$event_code]{$extension} |
236 | my $coro; $coro = async { |
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237 | eval { |
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238 | $cb->(); |
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239 | }; |
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240 | warn $@ if $@; |
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241 | }; |
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242 | |
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243 | $coro->on_destroy (sub { |
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244 | delete $EXT_CORO{$coro+0}; |
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245 | }); |
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246 | $EXT_CORO{$coro+0} = $coro; |
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247 | |
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248 | $coro |
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249 | } |
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250 | |
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251 | sub write_runtime { |
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252 | my $runtime = cf::localdir . "/runtime"; |
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253 | |
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254 | my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 |
82 | or return; |
255 | or return; |
83 | |
256 | |
84 | &$cb |
257 | my $value = $cf::RUNTIME; |
85 | } |
258 | (aio_write $fh, 0, (length $value), $value, 0) <= 0 |
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259 | and return; |
86 | |
260 | |
87 | sub inject_global_event { |
261 | aio_fsync $fh |
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262 | and return; |
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263 | |
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264 | close $fh |
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265 | or return; |
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266 | |
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267 | aio_rename "$runtime~", $runtime |
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268 | and return; |
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269 | |
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270 | 1 |
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271 | } |
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272 | |
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273 | =back |
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274 | |
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275 | =cut |
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276 | |
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277 | ############################################################################# |
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278 | |
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279 | package cf::path; |
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280 | |
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281 | sub new { |
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282 | my ($class, $path, $base) = @_; |
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283 | |
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284 | $path = $path->as_string if ref $path; |
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285 | |
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286 | my $self = bless { }, $class; |
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287 | |
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288 | if ($path =~ s{^\?random/}{}) { |
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289 | Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data; |
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290 | $self->{random} = cf::from_json $data; |
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291 | } else { |
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292 | if ($path =~ s{^~([^/]+)?}{}) { |
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293 | $self->{user_rel} = 1; |
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294 | |
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295 | if (defined $1) { |
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296 | $self->{user} = $1; |
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297 | } elsif ($base =~ m{^~([^/]+)/}) { |
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298 | $self->{user} = $1; |
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299 | } else { |
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300 | warn "cannot resolve user-relative path without user <$path,$base>\n"; |
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301 | } |
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302 | } elsif ($path =~ /^\//) { |
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303 | # already absolute |
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304 | } else { |
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305 | $base =~ s{[^/]+/?$}{}; |
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306 | return $class->new ("$base/$path"); |
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307 | } |
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308 | |
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309 | for ($path) { |
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310 | redo if s{/\.?/}{/}; |
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311 | redo if s{/[^/]+/\.\./}{/}; |
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312 | } |
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313 | } |
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314 | |
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315 | $self->{path} = $path; |
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316 | |
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317 | $self |
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318 | } |
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319 | |
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320 | # the name / primary key / in-game path |
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321 | sub as_string { |
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322 | my ($self) = @_; |
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323 | |
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324 | $self->{user_rel} ? "~$self->{user}$self->{path}" |
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325 | : $self->{random} ? "?random/$self->{path}" |
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326 | : $self->{path} |
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327 | } |
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328 | |
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329 | # the displayed name, this is a one way mapping |
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330 | sub visible_name { |
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331 | my ($self) = @_; |
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332 | |
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333 | # if (my $rmp = $self->{random}) { |
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334 | # # todo: be more intelligent about this |
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335 | # "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}" |
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336 | # } else { |
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337 | $self->as_string |
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338 | # } |
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339 | } |
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340 | |
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341 | # escape the /'s in the path |
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342 | sub _escaped_path { |
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343 | # ∕ is U+2215 |
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344 | (my $path = $_[0]{path}) =~ s/\//∕/g; |
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345 | $path |
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346 | } |
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347 | |
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348 | # the original (read-only) location |
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349 | sub load_path { |
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350 | my ($self) = @_; |
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351 | |
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352 | sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} |
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353 | } |
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354 | |
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355 | # the temporary/swap location |
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356 | sub save_path { |
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357 | my ($self) = @_; |
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358 | |
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359 | $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path |
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360 | : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path} |
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361 | : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path |
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362 | } |
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363 | |
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364 | # the unique path, might be eq to save_path |
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365 | sub uniq_path { |
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366 | my ($self) = @_; |
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367 | |
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368 | $self->{user_rel} || $self->{random} |
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369 | ? undef |
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370 | : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path |
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371 | } |
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372 | |
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373 | # return random map parameters, or undef |
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374 | sub random_map_params { |
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375 | my ($self) = @_; |
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376 | |
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377 | $self->{random} |
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378 | } |
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379 | |
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380 | # this is somewhat ugly, but style maps do need special treatment |
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381 | sub is_style_map { |
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382 | $_[0]{path} =~ m{^/styles/} |
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383 | } |
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384 | |
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385 | package cf; |
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386 | |
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387 | ############################################################################# |
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388 | |
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389 | =head2 ATTACHABLE OBJECTS |
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390 | |
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391 | Many objects in crossfire are so-called attachable objects. That means you can |
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392 | attach callbacks/event handlers (a collection of which is called an "attachment") |
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393 | to it. All such attachable objects support the following methods. |
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394 | |
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395 | In the following description, CLASS can be any of C<global>, C<object> |
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396 | C<player>, C<client> or C<map> (i.e. the attachable objects in |
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397 | crossfire+). |
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398 | |
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399 | =over 4 |
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400 | |
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401 | =item $attachable->attach ($attachment, key => $value...) |
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402 | |
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403 | =item $attachable->detach ($attachment) |
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404 | |
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405 | Attach/detach a pre-registered attachment to a specific object and give it |
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406 | the specified key/value pairs as arguments. |
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407 | |
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408 | Example, attach a minesweeper attachment to the given object, making it a |
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409 | 10x10 minesweeper game: |
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410 | |
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411 | $obj->attach (minesweeper => width => 10, height => 10); |
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412 | |
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413 | =item $bool = $attachable->attached ($name) |
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414 | |
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415 | Checks wether the named attachment is currently attached to the object. |
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416 | |
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|
417 | =item cf::CLASS->attach ... |
|
|
418 | |
|
|
419 | =item cf::CLASS->detach ... |
|
|
420 | |
|
|
421 | Define an anonymous attachment and attach it to all objects of the given |
|
|
422 | CLASS. See the next function for an explanation of its arguments. |
|
|
423 | |
|
|
424 | You can attach to global events by using the C<cf::global> class. |
|
|
425 | |
|
|
426 | Example, log all player logins: |
|
|
427 | |
|
|
428 | cf::player->attach ( |
|
|
429 | on_login => sub { |
|
|
430 | my ($pl) = @_; |
|
|
431 | ... |
|
|
432 | }, |
|
|
433 | ); |
|
|
434 | |
|
|
435 | Example, attach to the jeweler skill: |
|
|
436 | |
|
|
437 | cf::object->attach ( |
|
|
438 | type => cf::SKILL, |
|
|
439 | subtype => cf::SK_JEWELER, |
|
|
440 | on_use_skill => sub { |
|
|
441 | my ($sk, $ob, $part, $dir, $msg) = @_; |
|
|
442 | ... |
|
|
443 | }, |
|
|
444 | ); |
|
|
445 | |
|
|
446 | =item cf::CLASS::attachment $name, ... |
|
|
447 | |
|
|
448 | Register an attachment by C<$name> through which attachable objects of the |
|
|
449 | given CLASS can refer to this attachment. |
|
|
450 | |
|
|
451 | Some classes such as crossfire maps and objects can specify attachments |
|
|
452 | that are attached at load/instantiate time, thus the need for a name. |
|
|
453 | |
|
|
454 | These calls expect any number of the following handler/hook descriptions: |
|
|
455 | |
|
|
456 | =over 4 |
|
|
457 | |
|
|
458 | =item prio => $number |
|
|
459 | |
|
|
460 | Set the priority for all following handlers/hooks (unless overwritten |
|
|
461 | by another C<prio> setting). Lower priority handlers get executed |
|
|
462 | earlier. The default priority is C<0>, and many built-in handlers are |
|
|
463 | registered at priority C<-1000>, so lower priorities should not be used |
|
|
464 | unless you know what you are doing. |
|
|
465 | |
|
|
466 | =item type => $type |
|
|
467 | |
|
|
468 | (Only for C<< cf::object->attach >> calls), limits the attachment to the |
|
|
469 | given type of objects only (the additional parameter C<subtype> can be |
|
|
470 | used to further limit to the given subtype). |
|
|
471 | |
|
|
472 | =item on_I<event> => \&cb |
|
|
473 | |
|
|
474 | Call the given code reference whenever the named event happens (event is |
|
|
475 | something like C<instantiate>, C<apply>, C<use_skill> and so on, and which |
|
|
476 | handlers are recognised generally depends on the type of object these |
|
|
477 | handlers attach to). |
|
|
478 | |
|
|
479 | See F<include/eventinc.h> for the full list of events supported, and their |
|
|
480 | class. |
|
|
481 | |
|
|
482 | =item package => package:: |
|
|
483 | |
|
|
484 | Look for sub functions of the name C<< on_I<event> >> in the given |
|
|
485 | package and register them. Only handlers for eevents supported by the |
|
|
486 | object/class are recognised. |
|
|
487 | |
|
|
488 | =back |
|
|
489 | |
|
|
490 | Example, define an attachment called "sockpuppet" that calls the given |
|
|
491 | event handler when a monster attacks: |
|
|
492 | |
|
|
493 | cf::object::attachment sockpuppet => |
|
|
494 | on_skill_attack => sub { |
|
|
495 | my ($self, $victim) = @_; |
|
|
496 | ... |
|
|
497 | } |
|
|
498 | } |
|
|
499 | |
|
|
500 | =item $attachable->valid |
|
|
501 | |
|
|
502 | Just because you have a perl object does not mean that the corresponding |
|
|
503 | C-level object still exists. If you try to access an object that has no |
|
|
504 | valid C counterpart anymore you get an exception at runtime. This method |
|
|
505 | can be used to test for existence of the C object part without causing an |
|
|
506 | exception. |
|
|
507 | |
|
|
508 | =cut |
|
|
509 | |
|
|
510 | # the following variables are defined in .xs and must not be re-created |
|
|
511 | our @CB_GLOBAL = (); # registry for all global events |
|
|
512 | our @CB_ATTACHABLE = (); # registry for all attachables |
|
|
513 | our @CB_OBJECT = (); # all objects (should not be used except in emergency) |
|
|
514 | our @CB_PLAYER = (); |
|
|
515 | our @CB_CLIENT = (); |
|
|
516 | our @CB_TYPE = (); # registry for type (cf-object class) based events |
|
|
517 | our @CB_MAP = (); |
|
|
518 | |
|
|
519 | my %attachment; |
|
|
520 | |
|
|
521 | sub _attach_cb($$$$) { |
|
|
522 | my ($registry, $event, $prio, $cb) = @_; |
|
|
523 | |
|
|
524 | use sort 'stable'; |
|
|
525 | |
|
|
526 | $cb = [$prio, $cb]; |
|
|
527 | |
|
|
528 | @{$registry->[$event]} = sort |
|
|
529 | { $a->[0] cmp $b->[0] } |
|
|
530 | @{$registry->[$event] || []}, $cb; |
|
|
531 | } |
|
|
532 | |
|
|
533 | # hack |
|
|
534 | my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP; |
|
|
535 | |
|
|
536 | # attach handles attaching event callbacks |
|
|
537 | # the only thing the caller has to do is pass the correct |
|
|
538 | # registry (== where the callback attaches to). |
|
|
539 | sub _attach { |
|
|
540 | my ($registry, $klass, @arg) = @_; |
|
|
541 | |
|
|
542 | my $object_type; |
|
|
543 | my $prio = 0; |
|
|
544 | my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; |
|
|
545 | |
|
|
546 | #TODO: get rid of this hack |
|
|
547 | if ($attachable_klass{$klass}) { |
|
|
548 | %cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT); |
|
|
549 | } |
|
|
550 | |
|
|
551 | while (@arg) { |
|
|
552 | my $type = shift @arg; |
|
|
553 | |
|
|
554 | if ($type eq "prio") { |
|
|
555 | $prio = shift @arg; |
|
|
556 | |
|
|
557 | } elsif ($type eq "type") { |
|
|
558 | $object_type = shift @arg; |
|
|
559 | $registry = $CB_TYPE[$object_type] ||= []; |
|
|
560 | |
|
|
561 | } elsif ($type eq "subtype") { |
|
|
562 | defined $object_type or Carp::croak "subtype specified without type"; |
|
|
563 | my $object_subtype = shift @arg; |
|
|
564 | $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; |
|
|
565 | |
|
|
566 | } elsif ($type eq "package") { |
|
|
567 | my $pkg = shift @arg; |
|
|
568 | |
|
|
569 | while (my ($name, $id) = each %cb_id) { |
|
|
570 | if (my $cb = $pkg->can ($name)) { |
|
|
571 | _attach_cb $registry, $id, $prio, $cb; |
|
|
572 | } |
|
|
573 | } |
|
|
574 | |
|
|
575 | } elsif (exists $cb_id{$type}) { |
|
|
576 | _attach_cb $registry, $cb_id{$type}, $prio, shift @arg; |
|
|
577 | |
|
|
578 | } elsif (ref $type) { |
|
|
579 | warn "attaching objects not supported, ignoring.\n"; |
|
|
580 | |
|
|
581 | } else { |
|
|
582 | shift @arg; |
|
|
583 | warn "attach argument '$type' not supported, ignoring.\n"; |
|
|
584 | } |
|
|
585 | } |
|
|
586 | } |
|
|
587 | |
|
|
588 | sub _object_attach { |
|
|
589 | my ($obj, $name, %arg) = @_; |
|
|
590 | |
|
|
591 | return if exists $obj->{_attachment}{$name}; |
|
|
592 | |
|
|
593 | if (my $attach = $attachment{$name}) { |
|
|
594 | my $registry = $obj->registry; |
|
|
595 | |
|
|
596 | for (@$attach) { |
|
|
597 | my ($klass, @attach) = @$_; |
|
|
598 | _attach $registry, $klass, @attach; |
|
|
599 | } |
|
|
600 | |
|
|
601 | $obj->{$name} = \%arg; |
|
|
602 | } else { |
|
|
603 | warn "object uses attachment '$name' that is not available, postponing.\n"; |
|
|
604 | } |
|
|
605 | |
|
|
606 | $obj->{_attachment}{$name} = undef; |
|
|
607 | } |
|
|
608 | |
|
|
609 | sub cf::attachable::attach { |
|
|
610 | if (ref $_[0]) { |
|
|
611 | _object_attach @_; |
|
|
612 | } else { |
|
|
613 | _attach shift->_attach_registry, @_; |
|
|
614 | } |
|
|
615 | }; |
|
|
616 | |
|
|
617 | # all those should be optimised |
|
|
618 | sub cf::attachable::detach { |
|
|
619 | my ($obj, $name) = @_; |
|
|
620 | |
|
|
621 | if (ref $obj) { |
|
|
622 | delete $obj->{_attachment}{$name}; |
|
|
623 | reattach ($obj); |
|
|
624 | } else { |
|
|
625 | Carp::croak "cannot, currently, detach class attachments"; |
|
|
626 | } |
|
|
627 | }; |
|
|
628 | |
|
|
629 | sub cf::attachable::attached { |
|
|
630 | my ($obj, $name) = @_; |
|
|
631 | |
|
|
632 | exists $obj->{_attachment}{$name} |
|
|
633 | } |
|
|
634 | |
|
|
635 | for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) { |
|
|
636 | eval "#line " . __LINE__ . " 'cf.pm' |
|
|
637 | sub cf::\L$klass\E::_attach_registry { |
|
|
638 | (\\\@CB_$klass, KLASS_$klass) |
|
|
639 | } |
|
|
640 | |
|
|
641 | sub cf::\L$klass\E::attachment { |
|
|
642 | my \$name = shift; |
|
|
643 | |
|
|
644 | \$attachment{\$name} = [[KLASS_$klass, \@_]]; |
|
|
645 | } |
|
|
646 | "; |
|
|
647 | die if $@; |
|
|
648 | } |
|
|
649 | |
|
|
650 | our $override; |
|
|
651 | our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? |
|
|
652 | |
|
|
653 | sub override { |
|
|
654 | $override = 1; |
|
|
655 | @invoke_results = (); |
|
|
656 | } |
|
|
657 | |
|
|
658 | sub do_invoke { |
88 | my $event = shift; |
659 | my $event = shift; |
|
|
660 | my $callbacks = shift; |
89 | |
661 | |
90 | my $cb = $hook[$event] |
662 | @invoke_results = (); |
|
|
663 | |
|
|
664 | local $override; |
|
|
665 | |
|
|
666 | for (@$callbacks) { |
|
|
667 | eval { &{$_->[1]} }; |
|
|
668 | |
|
|
669 | if ($@) { |
|
|
670 | warn "$@"; |
|
|
671 | warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; |
|
|
672 | override; |
|
|
673 | } |
|
|
674 | |
|
|
675 | return 1 if $override; |
|
|
676 | } |
|
|
677 | |
|
|
678 | 0 |
|
|
679 | } |
|
|
680 | |
|
|
681 | =item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...) |
|
|
682 | |
|
|
683 | =item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...) |
|
|
684 | |
|
|
685 | Generate an object-specific event with the given arguments. |
|
|
686 | |
|
|
687 | This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be |
|
|
688 | removed in future versions), and there is no public API to access override |
|
|
689 | results (if you must, access C<@cf::invoke_results> directly). |
|
|
690 | |
|
|
691 | =back |
|
|
692 | |
|
|
693 | =cut |
|
|
694 | |
|
|
695 | ############################################################################# |
|
|
696 | # object support |
|
|
697 | |
|
|
698 | sub reattach { |
|
|
699 | # basically do the same as instantiate, without calling instantiate |
|
|
700 | my ($obj) = @_; |
|
|
701 | |
|
|
702 | my $registry = $obj->registry; |
|
|
703 | |
|
|
704 | @$registry = (); |
|
|
705 | |
|
|
706 | delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; |
|
|
707 | |
|
|
708 | for my $name (keys %{ $obj->{_attachment} || {} }) { |
|
|
709 | if (my $attach = $attachment{$name}) { |
|
|
710 | for (@$attach) { |
|
|
711 | my ($klass, @attach) = @$_; |
|
|
712 | _attach $registry, $klass, @attach; |
|
|
713 | } |
|
|
714 | } else { |
|
|
715 | warn "object uses attachment '$name' that is not available, postponing.\n"; |
|
|
716 | } |
|
|
717 | } |
|
|
718 | } |
|
|
719 | |
|
|
720 | cf::attachable->attach ( |
|
|
721 | prio => -1000000, |
|
|
722 | on_instantiate => sub { |
|
|
723 | my ($obj, $data) = @_; |
|
|
724 | |
|
|
725 | $data = from_json $data; |
|
|
726 | |
|
|
727 | for (@$data) { |
|
|
728 | my ($name, $args) = @$_; |
|
|
729 | |
|
|
730 | $obj->attach ($name, %{$args || {} }); |
|
|
731 | } |
|
|
732 | }, |
|
|
733 | on_reattach => \&reattach, |
|
|
734 | on_clone => sub { |
|
|
735 | my ($src, $dst) = @_; |
|
|
736 | |
|
|
737 | @{$dst->registry} = @{$src->registry}; |
|
|
738 | |
|
|
739 | %$dst = %$src; |
|
|
740 | |
|
|
741 | %{$dst->{_attachment}} = %{$src->{_attachment}} |
|
|
742 | if exists $src->{_attachment}; |
|
|
743 | }, |
|
|
744 | ); |
|
|
745 | |
|
|
746 | sub object_freezer_save { |
|
|
747 | my ($filename, $rdata, $objs) = @_; |
|
|
748 | |
|
|
749 | sync_job { |
|
|
750 | if (length $$rdata) { |
|
|
751 | warn sprintf "saving %s (%d,%d)\n", |
|
|
752 | $filename, length $$rdata, scalar @$objs; |
|
|
753 | |
|
|
754 | if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { |
|
|
755 | chmod SAVE_MODE, $fh; |
|
|
756 | aio_write $fh, 0, (length $$rdata), $$rdata, 0; |
|
|
757 | aio_fsync $fh; |
|
|
758 | close $fh; |
|
|
759 | |
|
|
760 | if (@$objs) { |
|
|
761 | if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { |
|
|
762 | chmod SAVE_MODE, $fh; |
|
|
763 | my $data = Storable::nfreeze { version => 1, objs => $objs }; |
|
|
764 | aio_write $fh, 0, (length $data), $data, 0; |
|
|
765 | aio_fsync $fh; |
|
|
766 | close $fh; |
|
|
767 | aio_rename "$filename.pst~", "$filename.pst"; |
|
|
768 | } |
|
|
769 | } else { |
|
|
770 | aio_unlink "$filename.pst"; |
|
|
771 | } |
|
|
772 | |
|
|
773 | aio_rename "$filename~", $filename; |
|
|
774 | } else { |
|
|
775 | warn "FATAL: $filename~: $!\n"; |
|
|
776 | } |
|
|
777 | } else { |
|
|
778 | aio_unlink $filename; |
|
|
779 | aio_unlink "$filename.pst"; |
|
|
780 | } |
|
|
781 | } |
|
|
782 | } |
|
|
783 | |
|
|
784 | sub object_freezer_as_string { |
|
|
785 | my ($rdata, $objs) = @_; |
|
|
786 | |
|
|
787 | use Data::Dumper; |
|
|
788 | |
|
|
789 | $$rdata . Dumper $objs |
|
|
790 | } |
|
|
791 | |
|
|
792 | sub object_thawer_load { |
|
|
793 | my ($filename) = @_; |
|
|
794 | |
|
|
795 | my ($data, $av); |
|
|
796 | |
|
|
797 | (aio_load $filename, $data) >= 0 |
91 | or return; |
798 | or return; |
92 | |
799 | |
93 | List::Util::max map &$_, values %$cb |
800 | unless (aio_stat "$filename.pst") { |
94 | } |
801 | (aio_load "$filename.pst", $av) >= 0 |
95 | |
802 | or return; |
96 | sub inject_command { |
803 | $av = eval { (Storable::thaw <$av>)->{objs} }; |
97 | my ($name, $obj, $params) = @_; |
|
|
98 | |
|
|
99 | for my $cmd (@{ $command{$name} }) { |
|
|
100 | $cmd->[1]->($obj, $params); |
|
|
101 | } |
804 | } |
102 | |
805 | |
103 | -1 |
806 | return ($data, $av); |
104 | } |
807 | } |
|
|
808 | |
|
|
809 | ############################################################################# |
|
|
810 | # command handling &c |
|
|
811 | |
|
|
812 | =item cf::register_command $name => \&callback($ob,$args); |
|
|
813 | |
|
|
814 | Register a callback for execution when the client sends the user command |
|
|
815 | $name. |
|
|
816 | |
|
|
817 | =cut |
105 | |
818 | |
106 | sub register_command { |
819 | sub register_command { |
107 | my ($name, $time, $cb) = @_; |
820 | my ($name, $cb) = @_; |
108 | |
821 | |
109 | my $caller = caller; |
822 | my $caller = caller; |
110 | #warn "registering command '$name/$time' to '$caller'"; |
823 | #warn "registering command '$name/$time' to '$caller'"; |
111 | |
824 | |
112 | push @{ $command{$name} }, [$time, $cb, $caller]; |
825 | push @{ $COMMAND{$name} }, [$caller, $cb]; |
113 | $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} }; |
|
|
114 | } |
826 | } |
|
|
827 | |
|
|
828 | =item cf::register_extcmd $name => \&callback($pl,$packet); |
|
|
829 | |
|
|
830 | Register a callbackf ro execution when the client sends an extcmd packet. |
|
|
831 | |
|
|
832 | If the callback returns something, it is sent back as if reply was being |
|
|
833 | called. |
|
|
834 | |
|
|
835 | =cut |
115 | |
836 | |
116 | sub register_extcmd { |
837 | sub register_extcmd { |
117 | my ($name, $cb) = @_; |
838 | my ($name, $cb) = @_; |
118 | |
839 | |
119 | my $caller = caller; |
840 | my $caller = caller; |
120 | #warn "registering extcmd '$name' to '$caller'"; |
841 | #warn "registering extcmd '$name' to '$caller'"; |
121 | |
842 | |
122 | $extcmd{$name} = [$cb, $caller]; |
843 | $EXTCMD{$name} = [$cb, $caller]; |
123 | } |
844 | } |
|
|
845 | |
|
|
846 | cf::player->attach ( |
|
|
847 | on_command => sub { |
|
|
848 | my ($pl, $name, $params) = @_; |
|
|
849 | |
|
|
850 | my $cb = $COMMAND{$name} |
|
|
851 | or return; |
|
|
852 | |
|
|
853 | for my $cmd (@$cb) { |
|
|
854 | $cmd->[1]->($pl->ob, $params); |
|
|
855 | } |
|
|
856 | |
|
|
857 | cf::override; |
|
|
858 | }, |
|
|
859 | on_extcmd => sub { |
|
|
860 | my ($pl, $buf) = @_; |
|
|
861 | |
|
|
862 | my $msg = eval { from_json $buf }; |
|
|
863 | |
|
|
864 | if (ref $msg) { |
|
|
865 | if (my $cb = $EXTCMD{$msg->{msgtype}}) { |
|
|
866 | if (my %reply = $cb->[0]->($pl, $msg)) { |
|
|
867 | $pl->ext_reply ($msg->{msgid}, %reply); |
|
|
868 | } |
|
|
869 | } |
|
|
870 | } else { |
|
|
871 | warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; |
|
|
872 | } |
|
|
873 | |
|
|
874 | cf::override; |
|
|
875 | }, |
|
|
876 | ); |
124 | |
877 | |
125 | sub register { |
878 | sub register { |
126 | my ($base, $pkg) = @_; |
879 | my ($base, $pkg) = @_; |
127 | |
880 | |
128 | for my $idx (0 .. $#EVENT) { |
881 | #TODO |
129 | if (my $ref = $pkg->can ("on_$EVENT[$idx]")) { |
|
|
130 | #warn "registering $EVENT[$idx] hook to '$pkg'\n"; |
|
|
131 | $hook[$idx]{$base} = $ref; |
|
|
132 | } |
|
|
133 | } |
|
|
134 | } |
882 | } |
135 | |
883 | |
136 | sub load_extension { |
884 | sub load_extension { |
137 | my ($path) = @_; |
885 | my ($path) = @_; |
138 | |
886 | |
139 | $path =~ /([^\/\\]+)\.ext$/ or die "$path"; |
887 | $path =~ /([^\/\\]+)\.ext$/ or die "$path"; |
140 | my $base = $1; |
888 | my $base = $1; |
141 | my $pkg = $1; |
889 | my $pkg = $1; |
142 | $pkg =~ s/[^[:word:]]/_/g; |
890 | $pkg =~ s/[^[:word:]]/_/g; |
143 | $pkg = "cf::ext::$pkg"; |
891 | $pkg = "ext::$pkg"; |
144 | |
892 | |
145 | warn "loading '$path' into '$pkg'\n"; |
893 | warn "loading '$path' into '$pkg'\n"; |
146 | |
894 | |
147 | open my $fh, "<:utf8", $path |
895 | open my $fh, "<:utf8", $path |
148 | or die "$path: $!"; |
896 | or die "$path: $!"; |
… | |
… | |
152 | . "#line 1 \"$path\"\n{\n" |
900 | . "#line 1 \"$path\"\n{\n" |
153 | . (do { local $/; <$fh> }) |
901 | . (do { local $/; <$fh> }) |
154 | . "\n};\n1"; |
902 | . "\n};\n1"; |
155 | |
903 | |
156 | eval $source |
904 | eval $source |
157 | or die "$path: $@"; |
905 | or die $@ ? "$path: $@\n" |
|
|
906 | : "extension disabled.\n"; |
158 | |
907 | |
159 | push @exts, $pkg; |
908 | push @exts, $pkg; |
160 | $ext_pkg{$base} = $pkg; |
909 | $ext_pkg{$base} = $pkg; |
161 | |
910 | |
162 | # no strict 'refs'; |
911 | # no strict 'refs'; |
163 | # @{"$pkg\::ISA"} = cf::ext::; |
912 | # @{"$pkg\::ISA"} = ext::; |
164 | |
913 | |
165 | register $base, $pkg; |
914 | register $base, $pkg; |
166 | } |
915 | } |
167 | |
916 | |
168 | sub unload_extension { |
917 | sub unload_extension { |
169 | my ($pkg) = @_; |
918 | my ($pkg) = @_; |
170 | |
919 | |
171 | warn "removing extension $pkg\n"; |
920 | warn "removing extension $pkg\n"; |
172 | |
921 | |
173 | # remove hooks |
922 | # remove hooks |
|
|
923 | #TODO |
174 | for my $idx (0 .. $#EVENT) { |
924 | # for my $idx (0 .. $#PLUGIN_EVENT) { |
175 | delete $hook[$idx]{$pkg}; |
925 | # delete $hook[$idx]{$pkg}; |
176 | } |
926 | # } |
177 | |
927 | |
178 | # remove commands |
928 | # remove commands |
179 | for my $name (keys %command) { |
929 | for my $name (keys %COMMAND) { |
180 | my @cb = grep $_->[2] ne $pkg, @{ $command{$name} }; |
930 | my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} }; |
181 | |
931 | |
182 | if (@cb) { |
932 | if (@cb) { |
183 | $command{$name} = \@cb; |
933 | $COMMAND{$name} = \@cb; |
184 | $COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb; |
|
|
185 | } else { |
934 | } else { |
186 | delete $command{$name}; |
|
|
187 | delete $COMMAND{"$name\000"}; |
935 | delete $COMMAND{$name}; |
188 | } |
936 | } |
189 | } |
937 | } |
190 | |
938 | |
191 | # remove extcmds |
939 | # remove extcmds |
192 | for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) { |
940 | for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) { |
193 | delete $extcmd{$name}; |
941 | delete $EXTCMD{$name}; |
|
|
942 | } |
|
|
943 | |
|
|
944 | if (my $cb = $pkg->can ("unload")) { |
|
|
945 | eval { |
|
|
946 | $cb->($pkg); |
|
|
947 | 1 |
|
|
948 | } or warn "$pkg unloaded, but with errors: $@"; |
194 | } |
949 | } |
195 | |
950 | |
196 | Symbol::delete_package $pkg; |
951 | Symbol::delete_package $pkg; |
197 | } |
952 | } |
198 | |
953 | |
199 | sub load_extensions { |
954 | sub load_extensions { |
200 | my $LIBDIR = maps_directory "perl"; |
|
|
201 | |
|
|
202 | for my $ext (<$LIBDIR/*.ext>) { |
955 | for my $ext (<$LIBDIR/*.ext>) { |
203 | next unless -r $ext; |
956 | next unless -r $ext; |
204 | eval { |
957 | eval { |
205 | load_extension $ext; |
958 | load_extension $ext; |
206 | 1 |
959 | 1 |
207 | } or warn "$ext not loaded: $@"; |
960 | } or warn "$ext not loaded: $@"; |
208 | } |
961 | } |
209 | } |
962 | } |
210 | |
963 | |
211 | register_command "perl-reload", 0, sub { |
964 | ############################################################################# |
|
|
965 | # load/save/clean perl data associated with a map |
|
|
966 | |
|
|
967 | *cf::mapsupport::on_clean = sub { |
|
|
968 | my ($map) = @_; |
|
|
969 | |
|
|
970 | my $path = $map->tmpname; |
|
|
971 | defined $path or return; |
|
|
972 | |
|
|
973 | unlink "$path.pst"; |
|
|
974 | }; |
|
|
975 | |
|
|
976 | cf::map->attach (prio => -10000, package => cf::mapsupport::); |
|
|
977 | |
|
|
978 | ############################################################################# |
|
|
979 | # load/save perl data associated with player->ob objects |
|
|
980 | |
|
|
981 | sub all_objects(@) { |
|
|
982 | @_, map all_objects ($_->inv), @_ |
|
|
983 | } |
|
|
984 | |
|
|
985 | # TODO: compatibility cruft, remove when no longer needed |
|
|
986 | cf::player->attach ( |
|
|
987 | on_load => sub { |
|
|
988 | my ($pl, $path) = @_; |
|
|
989 | |
|
|
990 | for my $o (all_objects $pl->ob) { |
|
|
991 | if (my $value = $o->get_ob_key_value ("_perl_data")) { |
|
|
992 | $o->set_ob_key_value ("_perl_data"); |
|
|
993 | |
|
|
994 | %$o = %{ Storable::thaw pack "H*", $value }; |
|
|
995 | } |
|
|
996 | } |
|
|
997 | }, |
|
|
998 | ); |
|
|
999 | |
|
|
1000 | ############################################################################# |
|
|
1001 | |
|
|
1002 | =head2 CORE EXTENSIONS |
|
|
1003 | |
|
|
1004 | Functions and methods that extend core crossfire objects. |
|
|
1005 | |
|
|
1006 | =head3 cf::player |
|
|
1007 | |
|
|
1008 | =over 4 |
|
|
1009 | |
|
|
1010 | =item cf::player::exists $login |
|
|
1011 | |
|
|
1012 | Returns true when the given account exists. |
|
|
1013 | |
|
|
1014 | =cut |
|
|
1015 | |
|
|
1016 | sub cf::player::exists($) { |
|
|
1017 | cf::player::find $_[0] |
|
|
1018 | or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
|
|
1019 | } |
|
|
1020 | |
|
|
1021 | =item $player->ext_reply ($msgid, $msgtype, %msg) |
|
|
1022 | |
|
|
1023 | Sends an ext reply to the player. |
|
|
1024 | |
|
|
1025 | =cut |
|
|
1026 | |
|
|
1027 | sub cf::player::ext_reply($$$%) { |
|
|
1028 | my ($self, $id, %msg) = @_; |
|
|
1029 | |
|
|
1030 | $msg{msgid} = $id; |
|
|
1031 | |
|
|
1032 | $self->send ("ext " . to_json \%msg); |
|
|
1033 | } |
|
|
1034 | |
|
|
1035 | =back |
|
|
1036 | |
|
|
1037 | |
|
|
1038 | =head3 cf::map |
|
|
1039 | |
|
|
1040 | =over 4 |
|
|
1041 | |
|
|
1042 | =cut |
|
|
1043 | |
|
|
1044 | package cf::map; |
|
|
1045 | |
|
|
1046 | use Fcntl; |
|
|
1047 | use Coro::AIO; |
|
|
1048 | |
|
|
1049 | our $MAX_RESET = 7200; |
|
|
1050 | our $DEFAULT_RESET = 3600; |
|
|
1051 | $MAX_RESET = 10;#d# |
|
|
1052 | $DEFAULT_RESET = 10;#d# |
|
|
1053 | |
|
|
1054 | sub generate_random_map { |
212 | my ($who, $arg) = @_; |
1055 | my ($path, $rmp) = @_; |
213 | |
1056 | |
214 | if ($who->flag (FLAG_WIZ)) { |
1057 | # mit "rum" bekleckern, nicht |
215 | $who->message ("reloading..."); |
1058 | cf::map::_create_random_map |
|
|
1059 | $path, |
|
|
1060 | $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, |
|
|
1061 | $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, |
|
|
1062 | $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, |
|
|
1063 | $rmp->{exit_on_final_map}, |
|
|
1064 | $rmp->{xsize}, $rmp->{ysize}, |
|
|
1065 | $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, |
|
|
1066 | $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, |
|
|
1067 | $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, |
|
|
1068 | $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, |
|
|
1069 | $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, |
|
|
1070 | (cf::region::find $rmp->{region}) |
|
|
1071 | } |
216 | |
1072 | |
217 | warn "reloading...\n"; |
1073 | # and all this just because we cannot iterate over |
|
|
1074 | # all maps in C++... |
|
|
1075 | sub change_all_map_light { |
|
|
1076 | my ($change) = @_; |
|
|
1077 | |
|
|
1078 | $_->change_map_light ($change) for values %cf::MAP; |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | sub try_load_header($) { |
|
|
1082 | my ($path) = @_; |
|
|
1083 | |
|
|
1084 | utf8::encode $path; |
|
|
1085 | aio_open $path, O_RDONLY, 0 |
|
|
1086 | or return; |
|
|
1087 | |
|
|
1088 | my $map = cf::map::new |
|
|
1089 | or return; |
|
|
1090 | |
|
|
1091 | $map->load_header ($path) |
|
|
1092 | or return; |
|
|
1093 | |
|
|
1094 | $map->{load_path} = $path; |
|
|
1095 | use Data::Dumper; warn Dumper $map;#d# |
|
|
1096 | |
|
|
1097 | $map |
|
|
1098 | } |
|
|
1099 | |
|
|
1100 | sub find_map { |
|
|
1101 | my ($path, $origin) = @_; |
|
|
1102 | |
|
|
1103 | #warn "find_map<$path,$origin>\n";#d# |
|
|
1104 | |
|
|
1105 | $path = ref $path ? $path : new cf::path $path, $origin && $origin->path; |
|
|
1106 | my $key = $path->as_string; |
|
|
1107 | |
|
|
1108 | $cf::MAP{$key} || do { |
|
|
1109 | # do it the slow way |
|
|
1110 | my $map = try_load_header $path->save_path; |
|
|
1111 | |
|
|
1112 | if ($map) { |
|
|
1113 | # safety |
|
|
1114 | $map->{instantiate_time} = $cf::RUNTIME |
|
|
1115 | if $map->{instantiate_time} > $cf::RUNTIME; |
|
|
1116 | } else { |
|
|
1117 | if (my $rmp = $path->random_map_params) { |
|
|
1118 | $map = generate_random_map $key, $rmp; |
|
|
1119 | } else { |
|
|
1120 | $map = try_load_header $path->load_path; |
|
|
1121 | } |
|
|
1122 | |
|
|
1123 | $map or return; |
|
|
1124 | |
|
|
1125 | $map->{load_original} = 1; |
|
|
1126 | $map->{instantiate_time} = $cf::RUNTIME; |
|
|
1127 | $map->instantiate; |
|
|
1128 | |
|
|
1129 | # per-player maps become, after loading, normal maps |
|
|
1130 | $map->per_player (0) if $path->{user_rel}; |
|
|
1131 | } |
|
|
1132 | |
|
|
1133 | $map->path ($key); |
|
|
1134 | $map->{path} = $path; |
|
|
1135 | $map->last_access ($cf::RUNTIME); |
|
|
1136 | |
|
|
1137 | $map->reset if $map->should_reset; |
|
|
1138 | |
|
|
1139 | $cf::MAP{$key} = $map |
|
|
1140 | } |
|
|
1141 | } |
|
|
1142 | |
|
|
1143 | sub load { |
|
|
1144 | my ($self) = @_; |
|
|
1145 | |
|
|
1146 | return if $self->in_memory != cf::MAP_SWAPPED; |
|
|
1147 | |
|
|
1148 | $self->in_memory (cf::MAP_LOADING); |
|
|
1149 | |
|
|
1150 | my $path = $self->{path}; |
|
|
1151 | |
|
|
1152 | $self->alloc; |
|
|
1153 | $self->load_objects ($self->{load_path}, 1) |
|
|
1154 | or return; |
|
|
1155 | |
|
|
1156 | $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original}; |
|
|
1157 | |
|
|
1158 | if (my $uniq = $path->uniq_path) { |
|
|
1159 | utf8::encode $uniq; |
|
|
1160 | if (aio_open $uniq, O_RDONLY, 0) { |
|
|
1161 | $self->clear_unique_items; |
|
|
1162 | $self->load_objects ($uniq, 0); |
|
|
1163 | } |
|
|
1164 | } |
|
|
1165 | |
|
|
1166 | # now do the right thing for maps |
|
|
1167 | $self->link_multipart_objects; |
|
|
1168 | |
|
|
1169 | if ($self->{path}->is_style_map) { |
|
|
1170 | $self->{deny_save} = 1; |
|
|
1171 | $self->{deny_reset} = 1; |
|
|
1172 | } else { |
|
|
1173 | $self->fix_auto_apply; |
|
|
1174 | $self->decay_objects; |
|
|
1175 | $self->update_buttons; |
|
|
1176 | $self->set_darkness_map; |
|
|
1177 | $self->difficulty ($self->estimate_difficulty) |
|
|
1178 | unless $self->difficulty; |
|
|
1179 | $self->activate; |
|
|
1180 | } |
|
|
1181 | |
|
|
1182 | $self->in_memory (cf::MAP_IN_MEMORY); |
|
|
1183 | } |
|
|
1184 | |
|
|
1185 | sub load_map_sync { |
|
|
1186 | my ($path, $origin) = @_; |
|
|
1187 | |
|
|
1188 | #warn "load_map_sync<$path, $origin>\n";#d# |
|
|
1189 | |
|
|
1190 | cf::sync_job { |
|
|
1191 | my $map = cf::map::find_map $path, $origin |
|
|
1192 | or return; |
|
|
1193 | $map->load; |
|
|
1194 | $map |
|
|
1195 | } |
|
|
1196 | } |
|
|
1197 | |
|
|
1198 | sub save { |
|
|
1199 | my ($self) = @_; |
|
|
1200 | |
|
|
1201 | my $save = $self->{path}->save_path; utf8::encode $save; |
|
|
1202 | my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; |
|
|
1203 | |
|
|
1204 | $self->{last_save} = $cf::RUNTIME; |
|
|
1205 | |
|
|
1206 | return unless $self->dirty; |
|
|
1207 | |
|
|
1208 | $self->{load_path} = $save; |
|
|
1209 | |
|
|
1210 | return if $self->{deny_save}; |
|
|
1211 | |
|
|
1212 | warn "saving map ", $self->path; |
|
|
1213 | |
|
|
1214 | if ($uniq) { |
|
|
1215 | $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); |
|
|
1216 | $self->save_objects ($uniq, cf::IO_UNIQUES); |
|
|
1217 | } else { |
|
|
1218 | $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); |
|
|
1219 | } |
|
|
1220 | } |
|
|
1221 | |
|
|
1222 | sub swap_out { |
|
|
1223 | my ($self) = @_; |
|
|
1224 | |
|
|
1225 | return if $self->players; |
|
|
1226 | return if $self->in_memory != cf::MAP_IN_MEMORY; |
|
|
1227 | return if $self->{deny_save}; |
|
|
1228 | |
|
|
1229 | $self->save; |
|
|
1230 | $self->clear; |
|
|
1231 | $self->in_memory (cf::MAP_SWAPPED); |
|
|
1232 | } |
|
|
1233 | |
|
|
1234 | sub should_reset { |
|
|
1235 | my ($map) = @_; |
|
|
1236 | |
|
|
1237 | # TODO: safety, remove and allow resettable per-player maps |
|
|
1238 | return if $map->{path}{user_rel};#d# |
|
|
1239 | return if $map->{deny_reset}; |
|
|
1240 | #return unless $map->reset_timeout; |
|
|
1241 | |
|
|
1242 | my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access; |
|
|
1243 | my $to = $map->reset_timeout || $DEFAULT_RESET; |
|
|
1244 | $to = $MAX_RESET if $to > $MAX_RESET; |
|
|
1245 | |
|
|
1246 | $time + $to < $cf::RUNTIME |
|
|
1247 | } |
|
|
1248 | |
|
|
1249 | sub unlink_save { |
|
|
1250 | my ($self) = @_; |
|
|
1251 | |
|
|
1252 | utf8::encode (my $save = $self->{path}->save_path); |
|
|
1253 | aioreq_pri 3; IO::AIO::aio_unlink $save; |
|
|
1254 | aioreq_pri 3; IO::AIO::aio_unlink "$save.pst"; |
|
|
1255 | } |
|
|
1256 | |
|
|
1257 | sub reset { |
|
|
1258 | my ($self) = @_; |
|
|
1259 | |
|
|
1260 | return if $self->players; |
|
|
1261 | return if $self->{path}{user_rel};#d# |
|
|
1262 | |
|
|
1263 | warn "resetting map ", $self->path;#d# |
|
|
1264 | |
|
|
1265 | delete $cf::MAP{$self->path}; |
|
|
1266 | |
|
|
1267 | $_->clear_links_to ($self) for values %cf::MAP; |
|
|
1268 | |
|
|
1269 | $self->unlink_save; |
|
|
1270 | $self->destroy; |
|
|
1271 | } |
|
|
1272 | |
|
|
1273 | sub customise_for { |
|
|
1274 | my ($map, $ob) = @_; |
|
|
1275 | |
|
|
1276 | if ($map->per_player) { |
|
|
1277 | return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; |
|
|
1278 | } |
|
|
1279 | |
|
|
1280 | $map |
|
|
1281 | } |
|
|
1282 | |
|
|
1283 | sub emergency_save { |
|
|
1284 | local $cf::FREEZE = 1; |
|
|
1285 | |
|
|
1286 | warn "enter emergency map save\n"; |
|
|
1287 | |
|
|
1288 | cf::sync_job { |
|
|
1289 | warn "begin emergency map save\n"; |
|
|
1290 | $_->save for values %cf::MAP; |
|
|
1291 | }; |
|
|
1292 | |
|
|
1293 | warn "end emergency map save\n"; |
|
|
1294 | } |
|
|
1295 | |
|
|
1296 | package cf; |
|
|
1297 | |
|
|
1298 | =back |
|
|
1299 | |
|
|
1300 | |
|
|
1301 | =head3 cf::object::player |
|
|
1302 | |
|
|
1303 | =over 4 |
|
|
1304 | |
|
|
1305 | =item $player_object->reply ($npc, $msg[, $flags]) |
|
|
1306 | |
|
|
1307 | Sends a message to the player, as if the npc C<$npc> replied. C<$npc> |
|
|
1308 | can be C<undef>. Does the right thing when the player is currently in a |
|
|
1309 | dialogue with the given NPC character. |
|
|
1310 | |
|
|
1311 | =cut |
|
|
1312 | |
|
|
1313 | # rough implementation of a future "reply" method that works |
|
|
1314 | # with dialog boxes. |
|
|
1315 | #TODO: the first argument must go, split into a $npc->reply_to ( method |
|
|
1316 | sub cf::object::player::reply($$$;$) { |
|
|
1317 | my ($self, $npc, $msg, $flags) = @_; |
|
|
1318 | |
|
|
1319 | $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; |
|
|
1320 | |
|
|
1321 | if ($self->{record_replies}) { |
|
|
1322 | push @{ $self->{record_replies} }, [$npc, $msg, $flags]; |
|
|
1323 | } else { |
|
|
1324 | $msg = $npc->name . " says: $msg" if $npc; |
|
|
1325 | $self->message ($msg, $flags); |
|
|
1326 | } |
|
|
1327 | } |
|
|
1328 | |
|
|
1329 | =item $player_object->may ("access") |
|
|
1330 | |
|
|
1331 | Returns wether the given player is authorized to access resource "access" |
|
|
1332 | (e.g. "command_wizcast"). |
|
|
1333 | |
|
|
1334 | =cut |
|
|
1335 | |
|
|
1336 | sub cf::object::player::may { |
|
|
1337 | my ($self, $access) = @_; |
|
|
1338 | |
|
|
1339 | $self->flag (cf::FLAG_WIZ) || |
|
|
1340 | (ref $cf::CFG{"may_$access"} |
|
|
1341 | ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} |
|
|
1342 | : $cf::CFG{"may_$access"}) |
|
|
1343 | } |
|
|
1344 | |
|
|
1345 | sub cf::object::player::enter_link { |
|
|
1346 | my ($self) = @_; |
|
|
1347 | |
|
|
1348 | return if $self->map == $LINK_MAP; |
|
|
1349 | |
|
|
1350 | $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] |
|
|
1351 | if $self->map; |
|
|
1352 | |
|
|
1353 | $self->enter_map ($LINK_MAP, 20, 20); |
|
|
1354 | $self->deactivate_recursive; |
|
|
1355 | } |
|
|
1356 | |
|
|
1357 | sub cf::object::player::leave_link { |
|
|
1358 | my ($self, $map, $x, $y) = @_; |
|
|
1359 | |
|
|
1360 | my $link_pos = delete $self->{_link_pos}; |
|
|
1361 | |
|
|
1362 | unless ($map) { |
|
|
1363 | $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); |
|
|
1364 | |
|
|
1365 | # restore original map position |
|
|
1366 | ($map, $x, $y) = @{ $link_pos || [] }; |
|
|
1367 | $map = cf::map::find_map $map; |
|
|
1368 | |
|
|
1369 | unless ($map) { |
|
|
1370 | ($map, $x, $y) = @$EMERGENCY_POSITION; |
|
|
1371 | $map = cf::map::find_map $map |
|
|
1372 | or die "FATAL: cannot load emergency map\n"; |
|
|
1373 | } |
|
|
1374 | } |
|
|
1375 | |
|
|
1376 | ($x, $y) = (-1, -1) |
|
|
1377 | unless (defined $x) && (defined $y); |
|
|
1378 | |
|
|
1379 | # use -1 or undef as default coordinates, not 0, 0 |
|
|
1380 | ($x, $y) = ($map->enter_x, $map->enter_y) |
|
|
1381 | if $x <=0 && $y <= 0; |
|
|
1382 | |
|
|
1383 | $map->load; |
|
|
1384 | |
|
|
1385 | $self->activate_recursive; |
|
|
1386 | $self->enter_map ($map, $x, $y); |
|
|
1387 | } |
|
|
1388 | |
|
|
1389 | =item $player_object->goto_map ($map, $x, $y) |
|
|
1390 | |
|
|
1391 | =cut |
|
|
1392 | |
|
|
1393 | sub cf::object::player::goto_map { |
|
|
1394 | my ($self, $path, $x, $y) = @_; |
|
|
1395 | |
|
|
1396 | $self->enter_link; |
|
|
1397 | |
|
|
1398 | (Coro::async { |
|
|
1399 | $path = new cf::path $path; |
|
|
1400 | |
|
|
1401 | my $map = cf::map::find_map $path->as_string; |
|
|
1402 | $map = $map->customise_for ($self) if $map; |
|
|
1403 | |
|
|
1404 | warn "entering ", $map->path, " at ($x, $y)\n" |
|
|
1405 | if $map; |
|
|
1406 | |
|
|
1407 | $self->leave_link ($map, $x, $y); |
|
|
1408 | })->prio (1); |
|
|
1409 | } |
|
|
1410 | |
|
|
1411 | =item $player_object->enter_exit ($exit_object) |
|
|
1412 | |
|
|
1413 | =cut |
|
|
1414 | |
|
|
1415 | sub parse_random_map_params { |
|
|
1416 | my ($spec) = @_; |
|
|
1417 | |
|
|
1418 | my $rmp = { # defaults |
|
|
1419 | xsize => 10, |
|
|
1420 | ysize => 10, |
|
|
1421 | }; |
|
|
1422 | |
|
|
1423 | for (split /\n/, $spec) { |
|
|
1424 | my ($k, $v) = split /\s+/, $_, 2; |
|
|
1425 | |
|
|
1426 | $rmp->{lc $k} = $v if (length $k) && (length $v); |
|
|
1427 | } |
|
|
1428 | |
|
|
1429 | $rmp |
|
|
1430 | } |
|
|
1431 | |
|
|
1432 | sub prepare_random_map { |
|
|
1433 | my ($exit) = @_; |
|
|
1434 | |
|
|
1435 | # all this does is basically replace the /! path by |
|
|
1436 | # a new random map path (?random/...) with a seed |
|
|
1437 | # that depends on the exit object |
|
|
1438 | |
|
|
1439 | my $rmp = parse_random_map_params $exit->msg; |
|
|
1440 | |
|
|
1441 | if ($exit->map) { |
|
|
1442 | $rmp->{region} = $exit->map->region_name; |
|
|
1443 | $rmp->{origin_map} = $exit->map->path; |
|
|
1444 | $rmp->{origin_x} = $exit->x; |
|
|
1445 | $rmp->{origin_y} = $exit->y; |
|
|
1446 | } |
|
|
1447 | |
|
|
1448 | $rmp->{random_seed} ||= $exit->random_seed; |
|
|
1449 | |
|
|
1450 | my $data = cf::to_json $rmp; |
|
|
1451 | my $md5 = Digest::MD5::md5_hex $data; |
|
|
1452 | |
|
|
1453 | if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { |
|
|
1454 | aio_write $fh, 0, (length $data), $data, 0; |
|
|
1455 | |
|
|
1456 | $exit->slaying ("?random/$md5"); |
|
|
1457 | $exit->msg (undef); |
|
|
1458 | } |
|
|
1459 | } |
|
|
1460 | |
|
|
1461 | sub cf::object::player::enter_exit { |
|
|
1462 | my ($self, $exit) = @_; |
|
|
1463 | |
|
|
1464 | return unless $self->type == cf::PLAYER; |
|
|
1465 | |
|
|
1466 | $self->enter_link; |
|
|
1467 | |
|
|
1468 | (Coro::async { |
|
|
1469 | unless (eval { |
|
|
1470 | |
|
|
1471 | prepare_random_map $exit |
|
|
1472 | if $exit->slaying eq "/!"; |
|
|
1473 | |
|
|
1474 | my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; |
|
|
1475 | $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); |
|
|
1476 | |
|
|
1477 | 1; |
|
|
1478 | }) { |
|
|
1479 | $self->message ("Something went wrong deep within the crossfire server. " |
|
|
1480 | . "I'll try to bring you back to the map you were before. " |
|
|
1481 | . "Please report this to the dungeon master", |
|
|
1482 | cf::NDI_UNIQUE | cf::NDI_RED); |
|
|
1483 | |
|
|
1484 | warn "ERROR in enter_exit: $@"; |
|
|
1485 | $self->leave_link; |
|
|
1486 | } |
|
|
1487 | })->prio (1); |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | =head3 cf::client |
|
|
1491 | |
|
|
1492 | =over 4 |
|
|
1493 | |
|
|
1494 | =item $client->send_drawinfo ($text, $flags) |
|
|
1495 | |
|
|
1496 | Sends a drawinfo packet to the client. Circumvents output buffering so |
|
|
1497 | should not be used under normal circumstances. |
|
|
1498 | |
|
|
1499 | =cut |
|
|
1500 | |
|
|
1501 | sub cf::client::send_drawinfo { |
|
|
1502 | my ($self, $text, $flags) = @_; |
|
|
1503 | |
|
|
1504 | utf8::encode $text; |
|
|
1505 | $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); |
|
|
1506 | } |
|
|
1507 | |
|
|
1508 | |
|
|
1509 | =item $success = $client->query ($flags, "text", \&cb) |
|
|
1510 | |
|
|
1511 | Queues a query to the client, calling the given callback with |
|
|
1512 | the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, |
|
|
1513 | C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. |
|
|
1514 | |
|
|
1515 | Queries can fail, so check the return code. Or don't, as queries will become |
|
|
1516 | reliable at some point in the future. |
|
|
1517 | |
|
|
1518 | =cut |
|
|
1519 | |
|
|
1520 | sub cf::client::query { |
|
|
1521 | my ($self, $flags, $text, $cb) = @_; |
|
|
1522 | |
|
|
1523 | return unless $self->state == ST_PLAYING |
|
|
1524 | || $self->state == ST_SETUP |
|
|
1525 | || $self->state == ST_CUSTOM; |
|
|
1526 | |
|
|
1527 | $self->state (ST_CUSTOM); |
|
|
1528 | |
|
|
1529 | utf8::encode $text; |
|
|
1530 | push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; |
|
|
1531 | |
|
|
1532 | $self->send_packet ($self->{query_queue}[0][0]) |
|
|
1533 | if @{ $self->{query_queue} } == 1; |
|
|
1534 | } |
|
|
1535 | |
|
|
1536 | cf::client->attach ( |
|
|
1537 | on_reply => sub { |
|
|
1538 | my ($ns, $msg) = @_; |
|
|
1539 | |
|
|
1540 | # this weird shuffling is so that direct followup queries |
|
|
1541 | # get handled first |
|
|
1542 | my $queue = delete $ns->{query_queue}; |
|
|
1543 | |
|
|
1544 | (shift @$queue)->[1]->($msg); |
|
|
1545 | |
|
|
1546 | push @{ $ns->{query_queue} }, @$queue; |
|
|
1547 | |
|
|
1548 | if (@{ $ns->{query_queue} } == @$queue) { |
|
|
1549 | if (@$queue) { |
|
|
1550 | $ns->send_packet ($ns->{query_queue}[0][0]); |
|
|
1551 | } else { |
|
|
1552 | $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; |
|
|
1553 | } |
|
|
1554 | } |
|
|
1555 | }, |
|
|
1556 | ); |
|
|
1557 | |
|
|
1558 | =item $client->coro (\&cb) |
|
|
1559 | |
|
|
1560 | Create a new coroutine, running the specified callback. The coroutine will |
|
|
1561 | be automatically cancelled when the client gets destroyed (e.g. on logout, |
|
|
1562 | or loss of connection). |
|
|
1563 | |
|
|
1564 | =cut |
|
|
1565 | |
|
|
1566 | sub cf::client::coro { |
|
|
1567 | my ($self, $cb) = @_; |
|
|
1568 | |
|
|
1569 | my $coro; $coro = async { |
218 | eval { |
1570 | eval { |
219 | unload_extension $_ for @exts; |
1571 | $cb->(); |
220 | delete $INC{"cf.pm"}; |
|
|
221 | |
|
|
222 | # don't, removes xs symbols, too |
|
|
223 | #Symbol::delete_package $pkg; |
|
|
224 | |
|
|
225 | require cf; |
|
|
226 | }; |
1572 | }; |
227 | warn $@ if $@; |
1573 | warn $@ if $@; |
228 | $who->message ($@) if $@; |
|
|
229 | warn "reloaded\n"; |
|
|
230 | |
|
|
231 | $who->message ("reloaded"); |
|
|
232 | } else { |
|
|
233 | $who->message ("Intruder Alert!"); |
|
|
234 | } |
1574 | }; |
|
|
1575 | |
|
|
1576 | $coro->on_destroy (sub { |
|
|
1577 | delete $self->{_coro}{$coro+0}; |
|
|
1578 | }); |
|
|
1579 | |
|
|
1580 | $self->{_coro}{$coro+0} = $coro; |
|
|
1581 | |
|
|
1582 | $coro |
|
|
1583 | } |
|
|
1584 | |
|
|
1585 | cf::client->attach ( |
|
|
1586 | on_destroy => sub { |
|
|
1587 | my ($ns) = @_; |
|
|
1588 | |
|
|
1589 | $_->cancel for values %{ (delete $ns->{_coro}) || {} }; |
|
|
1590 | }, |
|
|
1591 | ); |
|
|
1592 | |
|
|
1593 | =back |
|
|
1594 | |
|
|
1595 | |
|
|
1596 | =head2 SAFE SCRIPTING |
|
|
1597 | |
|
|
1598 | Functions that provide a safe environment to compile and execute |
|
|
1599 | snippets of perl code without them endangering the safety of the server |
|
|
1600 | itself. Looping constructs, I/O operators and other built-in functionality |
|
|
1601 | is not available in the safe scripting environment, and the number of |
|
|
1602 | functions and methods that can be called is greatly reduced. |
|
|
1603 | |
|
|
1604 | =cut |
|
|
1605 | |
|
|
1606 | our $safe = new Safe "safe"; |
|
|
1607 | our $safe_hole = new Safe::Hole; |
|
|
1608 | |
|
|
1609 | $SIG{FPE} = 'IGNORE'; |
|
|
1610 | |
|
|
1611 | $safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
|
|
1612 | |
|
|
1613 | # here we export the classes and methods available to script code |
|
|
1614 | |
|
|
1615 | =pod |
|
|
1616 | |
|
|
1617 | The following fucntions and emthods are available within a safe environment: |
|
|
1618 | |
|
|
1619 | cf::object contr pay_amount pay_player map |
|
|
1620 | cf::object::player player |
|
|
1621 | cf::player peaceful |
|
|
1622 | cf::map trigger |
|
|
1623 | |
|
|
1624 | =cut |
|
|
1625 | |
|
|
1626 | for ( |
|
|
1627 | ["cf::object" => qw(contr pay_amount pay_player map)], |
|
|
1628 | ["cf::object::player" => qw(player)], |
|
|
1629 | ["cf::player" => qw(peaceful)], |
|
|
1630 | ["cf::map" => qw(trigger)], |
|
|
1631 | ) { |
|
|
1632 | no strict 'refs'; |
|
|
1633 | my ($pkg, @funs) = @$_; |
|
|
1634 | *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
|
|
1635 | for @funs; |
|
|
1636 | } |
|
|
1637 | |
|
|
1638 | =over 4 |
|
|
1639 | |
|
|
1640 | =item @retval = safe_eval $code, [var => value, ...] |
|
|
1641 | |
|
|
1642 | Compiled and executes the given perl code snippet. additional var/value |
|
|
1643 | pairs result in temporary local (my) scalar variables of the given name |
|
|
1644 | that are available in the code snippet. Example: |
|
|
1645 | |
|
|
1646 | my $five = safe_eval '$first + $second', first => 1, second => 4; |
|
|
1647 | |
|
|
1648 | =cut |
|
|
1649 | |
|
|
1650 | sub safe_eval($;@) { |
|
|
1651 | my ($code, %vars) = @_; |
|
|
1652 | |
|
|
1653 | my $qcode = $code; |
|
|
1654 | $qcode =~ s/"/‟/g; # not allowed in #line filenames |
|
|
1655 | $qcode =~ s/\n/\\n/g; |
|
|
1656 | |
|
|
1657 | local $_; |
|
|
1658 | local @safe::cf::_safe_eval_args = values %vars; |
|
|
1659 | |
|
|
1660 | my $eval = |
|
|
1661 | "do {\n" |
|
|
1662 | . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" |
|
|
1663 | . "#line 0 \"{$qcode}\"\n" |
|
|
1664 | . $code |
|
|
1665 | . "\n}" |
|
|
1666 | ; |
|
|
1667 | |
|
|
1668 | sub_generation_inc; |
|
|
1669 | my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); |
|
|
1670 | sub_generation_inc; |
|
|
1671 | |
|
|
1672 | if ($@) { |
|
|
1673 | warn "$@"; |
|
|
1674 | warn "while executing safe code '$code'\n"; |
|
|
1675 | warn "with arguments " . (join " ", %vars) . "\n"; |
|
|
1676 | } |
|
|
1677 | |
|
|
1678 | wantarray ? @res : $res[0] |
|
|
1679 | } |
|
|
1680 | |
|
|
1681 | =item cf::register_script_function $function => $cb |
|
|
1682 | |
|
|
1683 | Register a function that can be called from within map/npc scripts. The |
|
|
1684 | function should be reasonably secure and should be put into a package name |
|
|
1685 | like the extension. |
|
|
1686 | |
|
|
1687 | Example: register a function that gets called whenever a map script calls |
|
|
1688 | C<rent::overview>, as used by the C<rent> extension. |
|
|
1689 | |
|
|
1690 | cf::register_script_function "rent::overview" => sub { |
|
|
1691 | ... |
|
|
1692 | }; |
|
|
1693 | |
|
|
1694 | =cut |
|
|
1695 | |
|
|
1696 | sub register_script_function { |
|
|
1697 | my ($fun, $cb) = @_; |
|
|
1698 | |
|
|
1699 | no strict 'refs'; |
|
|
1700 | *{"safe::$fun"} = $safe_hole->wrap ($cb); |
|
|
1701 | } |
|
|
1702 | |
|
|
1703 | =back |
|
|
1704 | |
|
|
1705 | =cut |
|
|
1706 | |
|
|
1707 | ############################################################################# |
|
|
1708 | |
|
|
1709 | =head2 EXTENSION DATABASE SUPPORT |
|
|
1710 | |
|
|
1711 | Crossfire maintains a very simple database for extension use. It can |
|
|
1712 | currently store anything that can be serialised using Storable, which |
|
|
1713 | excludes objects. |
|
|
1714 | |
|
|
1715 | The parameter C<$family> should best start with the name of the extension |
|
|
1716 | using it, it should be unique. |
|
|
1717 | |
|
|
1718 | =over 4 |
|
|
1719 | |
|
|
1720 | =item $hashref = cf::db_get $family |
|
|
1721 | |
|
|
1722 | Return a hashref for use by the extension C<$family>, which can be |
|
|
1723 | modified. After modifications, you have to call C<cf::db_dirty> or |
|
|
1724 | C<cf::db_sync>. |
|
|
1725 | |
|
|
1726 | =item $value = cf::db_get $family => $key |
|
|
1727 | |
|
|
1728 | Returns a single value from the database |
|
|
1729 | |
|
|
1730 | =item cf::db_put $family => $hashref |
|
|
1731 | |
|
|
1732 | Stores the given family hashref into the database. Updates are delayed, if |
|
|
1733 | you want the data to be synced to disk immediately, use C<cf::db_sync>. |
|
|
1734 | |
|
|
1735 | =item cf::db_put $family => $key => $value |
|
|
1736 | |
|
|
1737 | Stores the given C<$value> in the family hash. Updates are delayed, if you |
|
|
1738 | want the data to be synced to disk immediately, use C<cf::db_sync>. |
|
|
1739 | |
|
|
1740 | =item cf::db_dirty |
|
|
1741 | |
|
|
1742 | Marks the database as dirty, to be updated at a later time. |
|
|
1743 | |
|
|
1744 | =item cf::db_sync |
|
|
1745 | |
|
|
1746 | Immediately write the database to disk I<if it is dirty>. |
|
|
1747 | |
|
|
1748 | =cut |
|
|
1749 | |
|
|
1750 | our $DB; |
|
|
1751 | |
|
|
1752 | { |
|
|
1753 | my $path = cf::localdir . "/database.pst"; |
|
|
1754 | |
|
|
1755 | sub db_load() { |
|
|
1756 | warn "loading database $path\n";#d# remove later |
|
|
1757 | $DB = stat $path ? Storable::retrieve $path : { }; |
|
|
1758 | } |
|
|
1759 | |
|
|
1760 | my $pid; |
|
|
1761 | |
|
|
1762 | sub db_save() { |
|
|
1763 | warn "saving database $path\n";#d# remove later |
|
|
1764 | waitpid $pid, 0 if $pid; |
|
|
1765 | if (0 == ($pid = fork)) { |
|
|
1766 | $DB->{_meta}{version} = 1; |
|
|
1767 | Storable::nstore $DB, "$path~"; |
|
|
1768 | rename "$path~", $path; |
|
|
1769 | cf::_exit 0 if defined $pid; |
|
|
1770 | } |
|
|
1771 | } |
|
|
1772 | |
|
|
1773 | my $dirty; |
|
|
1774 | |
|
|
1775 | sub db_sync() { |
|
|
1776 | db_save if $dirty; |
|
|
1777 | undef $dirty; |
|
|
1778 | } |
|
|
1779 | |
|
|
1780 | my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub { |
|
|
1781 | db_sync; |
|
|
1782 | }); |
|
|
1783 | |
|
|
1784 | sub db_dirty() { |
|
|
1785 | $dirty = 1; |
|
|
1786 | $idle->start; |
|
|
1787 | } |
|
|
1788 | |
|
|
1789 | sub db_get($;$) { |
|
|
1790 | @_ >= 2 |
|
|
1791 | ? $DB->{$_[0]}{$_[1]} |
|
|
1792 | : ($DB->{$_[0]} ||= { }) |
|
|
1793 | } |
|
|
1794 | |
|
|
1795 | sub db_put($$;$) { |
|
|
1796 | if (@_ >= 3) { |
|
|
1797 | $DB->{$_[0]}{$_[1]} = $_[2]; |
|
|
1798 | } else { |
|
|
1799 | $DB->{$_[0]} = $_[1]; |
|
|
1800 | } |
|
|
1801 | db_dirty; |
|
|
1802 | } |
|
|
1803 | |
|
|
1804 | cf::global->attach ( |
|
|
1805 | prio => 10000, |
|
|
1806 | on_cleanup => sub { |
|
|
1807 | db_sync; |
|
|
1808 | }, |
|
|
1809 | ); |
|
|
1810 | } |
|
|
1811 | |
|
|
1812 | ############################################################################# |
|
|
1813 | # the server's main() |
|
|
1814 | |
|
|
1815 | sub cfg_load { |
|
|
1816 | open my $fh, "<:utf8", cf::confdir . "/config" |
|
|
1817 | or return; |
|
|
1818 | |
|
|
1819 | local $/; |
|
|
1820 | *CFG = YAML::Syck::Load <$fh>; |
|
|
1821 | } |
|
|
1822 | |
|
|
1823 | sub main { |
|
|
1824 | # we must not ever block the main coroutine |
|
|
1825 | local $Coro::idle = sub { |
|
|
1826 | Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# |
|
|
1827 | (Coro::unblock_sub { |
|
|
1828 | Event::one_event; |
|
|
1829 | })->(); |
|
|
1830 | }; |
|
|
1831 | |
|
|
1832 | cfg_load; |
|
|
1833 | db_load; |
|
|
1834 | load_extensions; |
|
|
1835 | Event::loop; |
|
|
1836 | } |
|
|
1837 | |
|
|
1838 | ############################################################################# |
|
|
1839 | # initialisation |
|
|
1840 | |
|
|
1841 | sub reload() { |
|
|
1842 | # can/must only be called in main |
|
|
1843 | if ($Coro::current != $Coro::main) { |
|
|
1844 | warn "can only reload from main coroutine\n"; |
|
|
1845 | return; |
|
|
1846 | } |
|
|
1847 | |
|
|
1848 | warn "reloading..."; |
|
|
1849 | |
|
|
1850 | local $FREEZE = 1; |
|
|
1851 | cf::emergency_save; |
|
|
1852 | |
|
|
1853 | eval { |
|
|
1854 | # if anything goes wrong in here, we should simply crash as we already saved |
|
|
1855 | |
|
|
1856 | # cancel all watchers |
|
|
1857 | for (Event::all_watchers) { |
|
|
1858 | $_->cancel if $_->data & WF_AUTOCANCEL; |
|
|
1859 | } |
|
|
1860 | |
|
|
1861 | # cancel all extension coros |
|
|
1862 | $_->cancel for values %EXT_CORO; |
|
|
1863 | %EXT_CORO = (); |
|
|
1864 | |
|
|
1865 | # unload all extensions |
|
|
1866 | for (@exts) { |
|
|
1867 | warn "unloading <$_>"; |
|
|
1868 | unload_extension $_; |
|
|
1869 | } |
|
|
1870 | |
|
|
1871 | # unload all modules loaded from $LIBDIR |
|
|
1872 | while (my ($k, $v) = each %INC) { |
|
|
1873 | next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
|
|
1874 | |
|
|
1875 | warn "removing <$k>"; |
|
|
1876 | delete $INC{$k}; |
|
|
1877 | |
|
|
1878 | $k =~ s/\.pm$//; |
|
|
1879 | $k =~ s/\//::/g; |
|
|
1880 | |
|
|
1881 | if (my $cb = $k->can ("unload_module")) { |
|
|
1882 | $cb->(); |
|
|
1883 | } |
|
|
1884 | |
|
|
1885 | Symbol::delete_package $k; |
|
|
1886 | } |
|
|
1887 | |
|
|
1888 | # sync database to disk |
|
|
1889 | cf::db_sync; |
|
|
1890 | IO::AIO::flush; |
|
|
1891 | |
|
|
1892 | # get rid of safe::, as good as possible |
|
|
1893 | Symbol::delete_package "safe::$_" |
|
|
1894 | for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); |
|
|
1895 | |
|
|
1896 | # remove register_script_function callbacks |
|
|
1897 | # TODO |
|
|
1898 | |
|
|
1899 | # unload cf.pm "a bit" |
|
|
1900 | delete $INC{"cf.pm"}; |
|
|
1901 | |
|
|
1902 | # don't, removes xs symbols, too, |
|
|
1903 | # and global variables created in xs |
|
|
1904 | #Symbol::delete_package __PACKAGE__; |
|
|
1905 | |
|
|
1906 | # reload cf.pm |
|
|
1907 | warn "reloading cf.pm"; |
|
|
1908 | require cf; |
|
|
1909 | cf::_connect_to_perl; # nominally unnecessary, but cannot hurt |
|
|
1910 | |
|
|
1911 | # load config and database again |
|
|
1912 | cf::cfg_load; |
|
|
1913 | cf::db_load; |
|
|
1914 | |
|
|
1915 | # load extensions |
|
|
1916 | warn "load extensions"; |
|
|
1917 | cf::load_extensions; |
|
|
1918 | |
|
|
1919 | # reattach attachments to objects |
|
|
1920 | warn "reattach"; |
|
|
1921 | _global_reattach; |
|
|
1922 | }; |
|
|
1923 | |
|
|
1924 | if ($@) { |
|
|
1925 | warn $@; |
|
|
1926 | warn "error while reloading, exiting."; |
|
|
1927 | exit 1; |
|
|
1928 | } |
|
|
1929 | |
|
|
1930 | warn "reloaded successfully"; |
235 | }; |
1931 | }; |
236 | |
1932 | |
237 | ############################################################################# |
1933 | ############################################################################# |
238 | # extcmd framework, basically convert ext <id> <pkg> arg1 args |
|
|
239 | # into pkg::->on_extcmd_arg1 (...) while shortcutting a few |
|
|
240 | |
1934 | |
241 | sub on_extcmd { |
1935 | unless ($LINK_MAP) { |
|
|
1936 | $LINK_MAP = cf::map::new; |
|
|
1937 | |
|
|
1938 | $LINK_MAP->width (41); |
|
|
1939 | $LINK_MAP->height (41); |
|
|
1940 | $LINK_MAP->alloc; |
|
|
1941 | $LINK_MAP->path ("{link}"); |
|
|
1942 | $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; |
|
|
1943 | $LINK_MAP->in_memory (MAP_IN_MEMORY); |
|
|
1944 | |
|
|
1945 | # dirty hack because... archetypes are not yet loaded |
|
|
1946 | Event->timer ( |
|
|
1947 | after => 2, |
|
|
1948 | cb => sub { |
|
|
1949 | $_[0]->w->cancel; |
|
|
1950 | |
|
|
1951 | # provide some exits "home" |
|
|
1952 | my $exit = cf::object::new "exit"; |
|
|
1953 | |
|
|
1954 | $exit->slaying ($EMERGENCY_POSITION->[0]); |
|
|
1955 | $exit->stats->hp ($EMERGENCY_POSITION->[1]); |
|
|
1956 | $exit->stats->sp ($EMERGENCY_POSITION->[2]); |
|
|
1957 | |
|
|
1958 | $LINK_MAP->insert ($exit->clone, 19, 19); |
|
|
1959 | $LINK_MAP->insert ($exit->clone, 19, 20); |
|
|
1960 | $LINK_MAP->insert ($exit->clone, 19, 21); |
|
|
1961 | $LINK_MAP->insert ($exit->clone, 20, 19); |
|
|
1962 | $LINK_MAP->insert ($exit->clone, 20, 21); |
|
|
1963 | $LINK_MAP->insert ($exit->clone, 21, 19); |
|
|
1964 | $LINK_MAP->insert ($exit->clone, 21, 20); |
|
|
1965 | $LINK_MAP->insert ($exit->clone, 21, 21); |
|
|
1966 | |
|
|
1967 | $exit->destroy; |
|
|
1968 | }); |
|
|
1969 | |
|
|
1970 | $LINK_MAP->{deny_save} = 1; |
|
|
1971 | $LINK_MAP->{deny_reset} = 1; |
|
|
1972 | |
|
|
1973 | $cf::MAP{$LINK_MAP->path} = $LINK_MAP; |
|
|
1974 | } |
|
|
1975 | |
|
|
1976 | register "<global>", __PACKAGE__; |
|
|
1977 | |
|
|
1978 | register_command "reload" => sub { |
242 | my ($pl, $buf) = @_; |
1979 | my ($who, $arg) = @_; |
243 | |
1980 | |
244 | my ($type) = $buf =~ s/^(\S+) // ? $1 : ""; |
1981 | if ($who->flag (FLAG_WIZ)) { |
245 | |
1982 | $who->message ("start of reload."); |
246 | $extcmd{$type}[0]->($pl, $buf) |
1983 | reload; |
247 | if $extcmd{$type}; |
1984 | $who->message ("end of reload."); |
248 | } |
1985 | } |
249 | |
|
|
250 | ############################################################################# |
|
|
251 | # load/save/clean perl data associated with a map |
|
|
252 | |
|
|
253 | *on_mapclean = sub { |
|
|
254 | my ($map) = @_; |
|
|
255 | |
|
|
256 | my $path = $map->tmpname; |
|
|
257 | defined $path or return; |
|
|
258 | |
|
|
259 | unlink "$path.cfperl"; |
|
|
260 | }; |
1986 | }; |
261 | |
1987 | |
262 | *on_mapin = |
1988 | unshift @INC, $LIBDIR; |
263 | *on_mapload = sub { |
|
|
264 | my ($map) = @_; |
|
|
265 | |
1989 | |
266 | my $path = $map->tmpname; |
1990 | $TICK_WATCHER = Event->timer ( |
267 | $path = $map->path unless defined $path; |
1991 | reentrant => 0, |
268 | |
1992 | prio => 0, |
269 | open my $fh, "<:raw", "$path.cfperl" |
1993 | at => $NEXT_TICK || $TICK, |
270 | or return; # no perl data |
1994 | data => WF_AUTOCANCEL, |
271 | |
1995 | cb => sub { |
272 | my $data = Storable::thaw do { local $/; <$fh> }; |
1996 | unless ($FREEZE) { |
273 | |
1997 | cf::server_tick; # one server iteration |
274 | $data->{version} <= 1 |
1998 | $RUNTIME += $TICK; |
275 | or return; # too new |
|
|
276 | |
|
|
277 | $map->_set_obs ($data->{obs}); |
|
|
278 | }; |
|
|
279 | |
|
|
280 | *on_mapout = sub { |
|
|
281 | my ($map) = @_; |
|
|
282 | |
|
|
283 | my $path = $map->tmpname; |
|
|
284 | $path = $map->path unless defined $path; |
|
|
285 | |
|
|
286 | my $obs = $map->_get_obs; |
|
|
287 | |
|
|
288 | if (defined $obs) { |
|
|
289 | open my $fh, ">:raw", "$path.cfperl" |
|
|
290 | or die "$path.cfperl: $!"; |
|
|
291 | |
|
|
292 | stat $path; |
|
|
293 | |
|
|
294 | print $fh Storable::nfreeze { |
|
|
295 | size => (stat _)[7], |
|
|
296 | time => (stat _)[9], |
|
|
297 | version => 1, |
|
|
298 | obs => $obs, |
|
|
299 | }; |
1999 | } |
300 | |
2000 | |
301 | chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g* |
2001 | $NEXT_TICK += $TICK; |
302 | } else { |
2002 | |
303 | unlink "$path.cfperl"; |
2003 | # if we are delayed by four ticks or more, skip them all |
|
|
2004 | $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; |
|
|
2005 | |
|
|
2006 | $TICK_WATCHER->at ($NEXT_TICK); |
|
|
2007 | $TICK_WATCHER->start; |
304 | } |
2008 | }, |
305 | }; |
2009 | ); |
306 | |
2010 | |
307 | ############################################################################# |
2011 | IO::AIO::max_poll_time $TICK * 0.2; |
308 | # load/save perl data associated with player->ob objects |
|
|
309 | |
2012 | |
310 | *on_player_load = sub { |
2013 | Event->io ( |
311 | my ($ob, $path) = @_; |
2014 | fd => IO::AIO::poll_fileno, |
|
|
2015 | poll => 'r', |
|
|
2016 | prio => 5, |
|
|
2017 | data => WF_AUTOCANCEL, |
|
|
2018 | cb => \&IO::AIO::poll_cb, |
|
|
2019 | ); |
312 | |
2020 | |
313 | if (open my $fh, "<:raw", "$path.cfperl") { |
2021 | Event->timer ( |
314 | |
2022 | data => WF_AUTOCANCEL, |
315 | #d##TODO#remove |
2023 | after => 0, |
316 | |
2024 | interval => 10, |
317 | my $data = Storable::thaw do { local $/; <$fh> }; |
2025 | cb => sub { |
318 | |
2026 | (Coro::unblock_sub { |
319 | $data->{version} <= 1 |
2027 | write_runtime |
320 | or return; # too new |
2028 | or warn "ERROR: unable to write runtime file: $!"; |
321 | |
2029 | })->(); |
322 | %$ob = %{$data->{ob}}; |
|
|
323 | return; |
|
|
324 | } |
2030 | }, |
325 | |
2031 | ); |
326 | for my $o ($ob, $ob->inv) { |
|
|
327 | if (my $value = $o->get_ob_key_value ("_perl_data")) { |
|
|
328 | $o->set_ob_key_value ("_perl_data"); |
|
|
329 | |
|
|
330 | %$o = %{ Storable::thaw pack "H*", $value }; |
|
|
331 | } |
|
|
332 | } |
|
|
333 | }; |
|
|
334 | |
|
|
335 | *on_player_save = sub { |
|
|
336 | my ($ob, $path) = @_; |
|
|
337 | |
|
|
338 | $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_) |
|
|
339 | for grep %$_, $ob, $ob->inv; |
|
|
340 | |
|
|
341 | unlink "$path.cfperl";#d##TODO#remove |
|
|
342 | }; |
|
|
343 | |
|
|
344 | register "<global>", __PACKAGE__; |
|
|
345 | |
|
|
346 | unshift @INC, maps_directory "perl"; |
|
|
347 | |
|
|
348 | load_extensions; |
|
|
349 | |
2032 | |
350 | 1 |
2033 | 1 |
351 | |
2034 | |