| 1 |
=head1 NAME |
| 2 |
|
| 3 |
DC - undocumented utility garbage for our deliantra client |
| 4 |
|
| 5 |
=head1 SYNOPSIS |
| 6 |
|
| 7 |
use DC; |
| 8 |
|
| 9 |
=head1 DESCRIPTION |
| 10 |
|
| 11 |
=over 4 |
| 12 |
|
| 13 |
=cut |
| 14 |
|
| 15 |
package DC; |
| 16 |
|
| 17 |
use Carp (); |
| 18 |
|
| 19 |
BEGIN { |
| 20 |
$VERSION = '0.9973'; |
| 21 |
|
| 22 |
use XSLoader; |
| 23 |
XSLoader::load "Deliantra::Client", $VERSION; |
| 24 |
} |
| 25 |
|
| 26 |
use utf8; |
| 27 |
|
| 28 |
use AnyEvent (); |
| 29 |
use Pod::POM (); |
| 30 |
use File::Path (); |
| 31 |
use Storable (); # finally |
| 32 |
use Fcntl (); |
| 33 |
use JSON::XS qw(encode_json decode_json); |
| 34 |
|
| 35 |
=item guard { BLOCK } |
| 36 |
|
| 37 |
Returns an object that executes the given block as soon as it is destroyed. |
| 38 |
|
| 39 |
=cut |
| 40 |
|
| 41 |
sub guard(&) { |
| 42 |
bless \(my $cb = $_[0]), "DC::Guard" |
| 43 |
} |
| 44 |
|
| 45 |
sub DC::Guard::DESTROY { |
| 46 |
${$_[0]}->() |
| 47 |
} |
| 48 |
|
| 49 |
=item shorten $string[, $maxlength] |
| 50 |
|
| 51 |
=cut |
| 52 |
|
| 53 |
sub shorten($;$) { |
| 54 |
my ($str, $len) = @_; |
| 55 |
substr $str, $len, (length $str), "..." if $len + 3 <= length $str; |
| 56 |
$str |
| 57 |
} |
| 58 |
|
| 59 |
sub asxml($) { |
| 60 |
local $_ = $_[0]; |
| 61 |
|
| 62 |
s/&/&/g; |
| 63 |
s/>/>/g; |
| 64 |
s/</</g; |
| 65 |
|
| 66 |
$_ |
| 67 |
} |
| 68 |
|
| 69 |
sub socketpipe() { |
| 70 |
socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC |
| 71 |
or die "cannot establish bidirectional pipe: $!\n"; |
| 72 |
|
| 73 |
($fh1, $fh2) |
| 74 |
} |
| 75 |
|
| 76 |
sub background(&;&) { |
| 77 |
my ($bg, $cb) = @_; |
| 78 |
|
| 79 |
my ($fh_r, $fh_w) = DC::socketpipe; |
| 80 |
|
| 81 |
my $pid = fork; |
| 82 |
|
| 83 |
if (defined $pid && !$pid) { |
| 84 |
local $SIG{__DIE__}; |
| 85 |
|
| 86 |
open STDOUT, ">&", $fh_w; |
| 87 |
open STDERR, ">&", $fh_w; |
| 88 |
close $fh_r; |
| 89 |
close $fh_w; |
| 90 |
|
| 91 |
$| = 1; |
| 92 |
|
| 93 |
eval { $bg->() }; |
| 94 |
|
| 95 |
if ($@) { |
| 96 |
my $msg = $@; |
| 97 |
$msg =~ s/\n+/\n/; |
| 98 |
warn "FATAL: $msg"; |
| 99 |
DC::_exit 1; |
| 100 |
} |
| 101 |
|
| 102 |
# win32 is fucked up, of course. exit will clean stuff up, |
| 103 |
# which destroys our database etc. _exit will exit ALL |
| 104 |
# forked processes, because of the dreaded fork emulation. |
| 105 |
DC::_exit 0; |
| 106 |
} |
| 107 |
|
| 108 |
close $fh_w; |
| 109 |
|
| 110 |
my $buffer; |
| 111 |
|
| 112 |
my $w; $w = AnyEvent->io (fh => $fh_r, poll => 'r', cb => sub { |
| 113 |
unless (sysread $fh_r, $buffer, 4096, length $buffer) { |
| 114 |
undef $w; |
| 115 |
$cb->(); |
| 116 |
return; |
| 117 |
} |
| 118 |
|
| 119 |
while ($buffer =~ s/^(.*)\n//) { |
| 120 |
my $line = $1; |
| 121 |
$line =~ s/\s+$//; |
| 122 |
utf8::decode $line; |
| 123 |
if ($line =~ /^\x{e877}json_msg (.*)$/s) { |
| 124 |
$cb->(JSON::XS->new->allow_nonref->decode ($1)); |
| 125 |
} else { |
| 126 |
::message ({ |
| 127 |
markup => "background($pid): " . DC::asxml $line, |
| 128 |
}); |
| 129 |
} |
| 130 |
} |
| 131 |
}); |
| 132 |
} |
| 133 |
|
| 134 |
sub background_msg { |
| 135 |
my ($msg) = @_; |
| 136 |
|
| 137 |
$msg = "\x{e877}json_msg " . JSON::XS->new->allow_nonref->encode ($msg); |
| 138 |
$msg =~ s/\n//g; |
| 139 |
utf8::encode $msg; |
| 140 |
print $msg, "\n"; |
| 141 |
} |
| 142 |
|
| 143 |
package DC; |
| 144 |
|
| 145 |
sub find_rcfile($) { |
| 146 |
my $path; |
| 147 |
|
| 148 |
for (grep !ref, @INC) { |
| 149 |
$path = "$_/Deliantra/Client/private/resources/$_[0]"; |
| 150 |
return $path if -r $path; |
| 151 |
} |
| 152 |
|
| 153 |
die "FATAL: can't find required file $_[0]\n"; |
| 154 |
} |
| 155 |
|
| 156 |
sub read_cfg { |
| 157 |
my ($file) = @_; |
| 158 |
|
| 159 |
open my $fh, $file |
| 160 |
or return; |
| 161 |
|
| 162 |
local $/; |
| 163 |
my $CFG = <$fh>; |
| 164 |
|
| 165 |
$::CFG = decode_json $CFG; |
| 166 |
} |
| 167 |
|
| 168 |
sub write_cfg { |
| 169 |
my $file = "$Deliantra::VARDIR/client.cf"; |
| 170 |
|
| 171 |
$::CFG->{VERSION} = $::VERSION; |
| 172 |
|
| 173 |
open my $fh, ">:utf8", $file |
| 174 |
or return; |
| 175 |
print $fh JSON::XS->new->utf8->pretty->encode ($::CFG); |
| 176 |
} |
| 177 |
|
| 178 |
sub http_proxy { |
| 179 |
my @proxy = win32_proxy_info; |
| 180 |
|
| 181 |
if (@proxy) { |
| 182 |
"http://" . (@proxy < 2 ? "" : @proxy < 3 ? "$proxy[1]\@" : "$proxy[1]:$proxy[2]\@") . $proxy[0] |
| 183 |
} elsif (exists $ENV{http_proxy}) { |
| 184 |
$ENV{http_proxy} |
| 185 |
} else { |
| 186 |
() |
| 187 |
} |
| 188 |
} |
| 189 |
|
| 190 |
sub set_proxy { |
| 191 |
my $proxy = http_proxy |
| 192 |
or return; |
| 193 |
|
| 194 |
$ENV{http_proxy} = $proxy; |
| 195 |
} |
| 196 |
|
| 197 |
sub lwp_useragent { |
| 198 |
require LWP::UserAgent; |
| 199 |
|
| 200 |
DC::set_proxy; |
| 201 |
|
| 202 |
my $ua = LWP::UserAgent->new ( |
| 203 |
agent => "deliantra $VERSION", |
| 204 |
keep_alive => 1, |
| 205 |
env_proxy => 1, |
| 206 |
timeout => 30, |
| 207 |
); |
| 208 |
} |
| 209 |
|
| 210 |
sub lwp_check($) { |
| 211 |
my ($res) = @_; |
| 212 |
|
| 213 |
$res->is_error |
| 214 |
and die $res->status_line; |
| 215 |
|
| 216 |
$res |
| 217 |
} |
| 218 |
|
| 219 |
sub fh_nonblocking($$) { |
| 220 |
my ($fh, $nb) = @_; |
| 221 |
|
| 222 |
if ($^O eq "MSWin32") { |
| 223 |
$nb = (! ! $nb) + 0; |
| 224 |
ioctl $fh, 0x8004667e, \$nb; # FIONBIO |
| 225 |
} else { |
| 226 |
fcntl $fh, &Fcntl::F_SETFL, $nb ? &Fcntl::O_NONBLOCK : 0; |
| 227 |
} |
| 228 |
} |
| 229 |
|
| 230 |
package DC::Layout; |
| 231 |
|
| 232 |
$DC::OpenGL::INIT_HOOK{"DC::Layout"} = sub { |
| 233 |
glyph_cache_restore; |
| 234 |
}; |
| 235 |
|
| 236 |
$DC::OpenGL::SHUTDOWN_HOOK{"DC::Layout"} = sub { |
| 237 |
glyph_cache_backup; |
| 238 |
}; |
| 239 |
|
| 240 |
1; |
| 241 |
|
| 242 |
=back |
| 243 |
|
| 244 |
=head1 AUTHOR |
| 245 |
|
| 246 |
Marc Lehmann <schmorp@schmorp.de> |
| 247 |
http://home.schmorp.de/ |
| 248 |
|
| 249 |
=cut |
| 250 |
|
