deliantra/Deliantra-Client/DC.pm

=head1 NAME

DC - undocumented utility garbage for our deliantra client

=head1 SYNOPSIS

 use DC;

=head1 DESCRIPTION

=over 4

=cut

package DC;

use Carp ();

our $VERSION;

BEGIN {
   $VERSION = '2.11';

   use XSLoader;
   XSLoader::load "Deliantra::Client", $VERSION;
}

use utf8;
use strict qw(vars subs);

use Socket ();
use AnyEvent ();
use AnyEvent::Util ();
use Pod::POM ();
use File::Path ();
use Storable (); # finally
use Fcntl ();
use JSON::XS qw(encode_json decode_json);
use Guard qw(guard);

# modules to support other DC::* packages
use List::Util ();
use IO::AIO ();
use Coro::AIO ();
use AnyEvent::AIO ();

=item shorten $string[, $maxlength]

=cut

sub shorten($;$) {
   my ($str, $len) = @_;
   substr $str, $len, (length $str), "..." if $len + 3 <= length $str;
   $str
}

sub asxml($) {
   local $_ = $_[0];

   s/&/&amp;/g;
   s/>/&gt;/g;
   s/</&lt;/g;

   $_
}

sub background(&;&) {
   my ($bg, $cb) = @_;

   my ($fh_r, $fh_w) = AnyEvent::Util::portable_socketpair
     or die "unable to create background socketpair: $!";

   my $pid = fork;

   if (defined $pid && !$pid) {
      local $SIG{__DIE__};

      open STDOUT, ">&", $fh_w;
      open STDERR, ">&", $fh_w;
      close $fh_r;
      close $fh_w;

      $| = 1;

      eval { $bg->() };

      if ($@) {
         my $msg = $@;
         $msg =~ s/\n+/\n/;
         warn "FATAL: $msg";
         DC::_exit 1;
      }

      # win32 is fucked up, of course. exit will clean stuff up,
      # which destroys our database etc. _exit will exit ALL
      # forked processes, because of the dreaded fork emulation.
      DC::_exit 0;
   }

   close $fh_w;

   my $buffer;

   my $w; $w = AnyEvent->io (fh => $fh_r, poll => 'r', cb => sub {
      unless (sysread $fh_r, $buffer, 4096, length $buffer) {
         undef $w;
         $cb->();
         return;
      }

      while ($buffer =~ s/^(.*)\n//) {
         my $line = $1;
         $line =~ s/\s+$//;
         utf8::decode $line;
         if ($line =~ /^\x{e877}json_msg (.*)$/s) {
            $cb->(JSON::XS->new->allow_nonref->decode ($1));
         } else {
            ::message ({
               markup => "background($pid): " . DC::asxml $line,
            });
         }
      }
   });
}

sub background_msg {
   my ($msg) = @_;

   $msg = "\x{e877}json_msg " . JSON::XS->new->allow_nonref->encode ($msg);
   $msg =~ s/\n//g;
   utf8::encode $msg;
   print $msg, "\n";
}

package DC;

our $RC_THEME;
our %THEME;
our @RC_PATH;
our $RC_BASE;

for (grep !ref, @INC) {
   $RC_BASE = "$_/Deliantra/Client/private/resources";
   last if -d $RC_BASE;
}

sub find_rcfile($) {
   my $path;

   for (@RC_PATH, "") {
      $path = "$RC_BASE/$_/$_[0]";
      return $path if -e $path;
   }

   die "FATAL: can't find required file \"$_[0]\" in \"$RC_BASE\"\n";
}

sub load_json($) {
   my ($file) = @_;

   open my $fh, $file
      or return;

   local $/;
   eval { JSON::XS->new->utf8->relaxed->decode (<$fh>) }
}

sub set_theme($) {
   return if $RC_THEME eq $_[0];
   $RC_THEME = $_[0];

   # kind of hacky, find the main theme file, then load all theme files and merge them

   %THEME = ();
   @RC_PATH = "theme-$RC_THEME";

   my $theme = load_json find_rcfile "theme.json"
      or die "FATAL: theme resource file not found";

   @RC_PATH = @{ $theme->{path} } if $theme->{path};

   for (@RC_PATH, "") {
      my $theme = load_json "$RC_BASE/$_/theme.json"
         or next;

      %THEME = ( %$theme, %THEME );
   }
}

sub read_cfg {
   my ($file) = @_;

   $::CFG = (load_json $file) || (load_json "$file.bak");
}

sub write_cfg {
   my $file = "$Deliantra::VARDIR/client.cf";

   $::CFG->{VERSION} = $::VERSION;
   $::CFG->{layout}  = DC::UI::get_layout ();

   open my $fh, ">:utf8", "$file~"
      or return;
   print $fh JSON::XS->new->utf8->pretty->encode ($::CFG);
   close $fh;

   rename $file, "$file.bak";
   rename "$file~", $file;
}

sub http_proxy {
   my @proxy = win32_proxy_info;

   if (@proxy) {
      "http://" . (@proxy < 2 ? "" : @proxy < 3 ? "$proxy[1]\@" : "$proxy[1]:$proxy[2]\@") . $proxy[0]
   } elsif (exists $ENV{http_proxy}) {
      $ENV{http_proxy}
   } else {
     ()
   }
}

sub set_proxy {
   my $proxy = http_proxy
      or return;

   $ENV{http_proxy} = $proxy;
}

sub lwp_useragent {
   require LWP::UserAgent;
   
   DC::set_proxy;

   my $ua = LWP::UserAgent->new (
      agent      => "deliantra $VERSION",
      keep_alive => 1,
      env_proxy  => 1,
      timeout    => 30,
   );
}

sub lwp_check($) {
   my ($res) = @_;

   $res->is_error
      and die $res->status_line;

   $res
}

sub fh_nonblocking($$) {
   my ($fh, $nb) = @_;

   if ($^O eq "MSWin32") {
      $nb = (! ! $nb) + 0;
      ioctl $fh, 0x8004667e, \$nb; # FIONBIO
   } else {
      fcntl $fh, &Fcntl::F_SETFL, $nb ? &Fcntl::O_NONBLOCK : 0;
   }
}

package DC::Layout;

$DC::OpenGL::INIT_HOOK{"DC::Layout"} = sub {
   glyph_cache_restore;
};

$DC::OpenGL::SHUTDOWN_HOOK{"DC::Layout"} = sub {
   glyph_cache_backup;
};

1;

=back

=head1 AUTHOR

 Marc Lehmann <schmorp@schmorp.de>
 http://home.schmorp.de/

=cut

Revision:	1.212
Committed:	Wed Jan 4 11:23:23 2012 UTC (12 years, 4 months ago) by root
Branch:	MAIN
Changes since 1.211:	+6 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	=head1 NAME
2
3	root	1.169	DC - undocumented utility garbage for our deliantra client
4	root	1.1
5			=head1 SYNOPSIS
6
7	root	1.169	use DC;
8	root	1.1
9			=head1 DESCRIPTION
10
11			=over 4
12
13			=cut
14
15	root	1.169	package DC;
16	root	1.1
17	root	1.121	use Carp ();
18
19	root	1.187	our $VERSION;
20
21	root	1.1	BEGIN {
22	root	1.211	$VERSION = '2.11';
23	root	1.1
24	root	1.2	use XSLoader;
25	root	1.168	XSLoader::load "Deliantra::Client", $VERSION;
26	root	1.1	}
27
28	root	1.62	use utf8;
29	root	1.187	use strict qw(vars subs);
30	root	1.62
31	root	1.200	use Socket ();
32	root	1.52	use AnyEvent ();
33	root	1.200	use AnyEvent::Util ();
34	root	1.89	use Pod::POM ();
35	root	1.135	use File::Path ();
36	root	1.89	use Storable (); # finally
37	root	1.141	use Fcntl ();
38	root	1.159	use JSON::XS qw(encode_json decode_json);
39	root	1.202	use Guard qw(guard);
40	root	1.103
41	root	1.212	# modules to support other DC::* packages
42			use List::Util ();
43			use IO::AIO ();
44			use Coro::AIO ();
45			use AnyEvent::AIO ();
46
47	root	1.133	=item shorten $string[, $maxlength]
48
49			=cut
50
51			sub shorten($;$) {
52			my ($str, $len) = @_;
53			substr $str, $len, (length $str), "..." if $len + 3 <= length $str;
54			$str
55			}
56
57	root	1.105	sub asxml($) {
58			local $_ = $_[0];
59	root	1.89
60	root	1.105	s/&/&/g;
61			s/>/>/g;
62			s/</</g;
63	root	1.89
64	root	1.105	$_
65	root	1.89	}
66
67	root	1.127	sub background(&;&) {
68			my ($bg, $cb) = @_;
69	root	1.123
70	root	1.200	my ($fh_r, $fh_w) = AnyEvent::Util::portable_socketpair
71			or die "unable to create background socketpair: $!";
72	root	1.123
73			my $pid = fork;
74
75			if (defined $pid && !$pid) {
76	root	1.124	local $SIG{__DIE__};
77	root	1.123
78			open STDOUT, ">&", $fh_w;
79			open STDERR, ">&", $fh_w;
80			close $fh_r;
81			close $fh_w;
82
83			$\| = 1;
84
85	root	1.127	eval { $bg->() };
86	root	1.124
87			if ($@) {
88			my $msg = $@;
89			$msg =~ s/\n+/\n/;
90			warn "FATAL: $msg";
91	root	1.169	DC::_exit 1;
92	root	1.124	}
93	root	1.123
94			# win32 is fucked up, of course. exit will clean stuff up,
95			# which destroys our database etc. _exit will exit ALL
96			# forked processes, because of the dreaded fork emulation.
97	root	1.169	DC::_exit 0;
98	root	1.123	}
99
100			close $fh_w;
101
102			my $buffer;
103
104	root	1.126	my $w; $w = AnyEvent->io (fh => $fh_r, poll => 'r', cb => sub {
105	root	1.123	unless (sysread $fh_r, $buffer, 4096, length $buffer) {
106	root	1.126	undef $w;
107	root	1.127	$cb->();
108			return;
109	root	1.123	}
110
111			while ($buffer =~ s/^(.*)\n//) {
112			my $line = $1;
113	root	1.124	$line =~ s/\s+$//;
114	root	1.123	utf8::decode $line;
115	root	1.127	if ($line =~ /^\x{e877}json_msg (.*)$/s) {
116	root	1.139	$cb->(JSON::XS->new->allow_nonref->decode ($1));
117	root	1.127	} else {
118			::message ({
119	root	1.169	markup => "background($pid): " . DC::asxml $line,
120	root	1.127	});
121			}
122	root	1.123	}
123			});
124			}
125
126	root	1.127	sub background_msg {
127			my ($msg) = @_;
128
129	root	1.139	$msg = "\x{e877}json_msg " . JSON::XS->new->allow_nonref->encode ($msg);
130	root	1.127	$msg =~ s/\n//g;
131			utf8::encode $msg;
132			print $msg, "\n";
133			}
134
135	root	1.169	package DC;
136	root	1.52
137	root	1.191	our $RC_THEME;
138	root	1.192	our %THEME;
139	root	1.191	our @RC_PATH;
140	root	1.187	our $RC_BASE;
141
142			for (grep !ref, @INC) {
143			$RC_BASE = "$_/Deliantra/Client/private/resources";
144			last if -d $RC_BASE;
145			}
146
147	root	1.5	sub find_rcfile($) {
148			my $path;
149
150	root	1.191	for (@RC_PATH, "") {
151	root	1.189	$path = "$RC_BASE/$_/$_[0]";
152	root	1.205	return $path if -e $path;
153	root	1.189	}
154	root	1.5
155	root	1.187	die "FATAL: can't find required file \"$_[0]\" in \"$RC_BASE\"\n";
156	root	1.5	}
157
158	root	1.192	sub load_json($) {
159			my ($file) = @_;
160
161			open my $fh, $file
162			or return;
163
164			local $/;
165	root	1.203	eval { JSON::XS->new->utf8->relaxed->decode (<$fh>) }
166	root	1.192	}
167
168	root	1.191	sub set_theme($) {
169			return if $RC_THEME eq $_[0];
170			$RC_THEME = $_[0];
171
172	root	1.192	# kind of hacky, find the main theme file, then load all theme files and merge them
173
174			%THEME = ();
175	root	1.191	@RC_PATH = "theme-$RC_THEME";
176
177	root	1.192	my $theme = load_json find_rcfile "theme.json"
178			or die "FATAL: theme resource file not found";
179	root	1.191
180	root	1.192	@RC_PATH = @{ $theme->{path} } if $theme->{path};
181
182			for (@RC_PATH, "") {
183			my $theme = load_json "$RC_BASE/$_/theme.json"
184			or next;
185
186			%THEME = ( %$theme, %THEME );
187	root	1.191	}
188			}
189
190	root	1.5	sub read_cfg {
191			my ($file) = @_;
192
193	root	1.201	$::CFG = (load_json $file) \|\| (load_json "$file.bak");
194	root	1.5	}
195
196			sub write_cfg {
197	root	1.178	my $file = "$Deliantra::VARDIR/client.cf";
198	root	1.5
199	root	1.107	$::CFG->{VERSION} = $::VERSION;
200	root	1.201	$::CFG->{layout} = DC::UI::get_layout ();
201	root	1.107
202	root	1.201	open my $fh, ">:utf8", "$file~"
203	root	1.5	or return;
204	root	1.180	print $fh JSON::XS->new->utf8->pretty->encode ($::CFG);
205	root	1.201	close $fh;
206
207			rename $file, "$file.bak";
208			rename "$file~", $file;
209	root	1.5	}
210
211	root	1.122	sub http_proxy {
212			my @proxy = win32_proxy_info;
213
214			if (@proxy) {
215			"http://" . (@proxy < 2 ? "" : @proxy < 3 ? "$proxy[1]\@" : "$proxy[1]:$proxy[2]\@") . $proxy[0]
216			} elsif (exists $ENV{http_proxy}) {
217			$ENV{http_proxy}
218			} else {
219			()
220			}
221			}
222
223			sub set_proxy {
224			my $proxy = http_proxy
225			or return;
226
227			$ENV{http_proxy} = $proxy;
228			}
229
230	root	1.127	sub lwp_useragent {
231			require LWP::UserAgent;
232
233	root	1.169	DC::set_proxy;
234	root	1.127
235			my $ua = LWP::UserAgent->new (
236	root	1.171	agent => "deliantra $VERSION",
237	root	1.127	keep_alive => 1,
238			env_proxy => 1,
239			timeout => 30,
240			);
241			}
242
243			sub lwp_check($) {
244			my ($res) = @_;
245
246			$res->is_error
247			and die $res->status_line;
248
249			$res
250			}
251
252	root	1.141	sub fh_nonblocking($$) {
253			my ($fh, $nb) = @_;
254
255	root	1.142	if ($^O eq "MSWin32") {
256			$nb = (! ! $nb) + 0;
257	root	1.143	ioctl $fh, 0x8004667e, \$nb; # FIONBIO
258	root	1.141	} else {
259			fcntl $fh, &Fcntl::F_SETFL, $nb ? &Fcntl::O_NONBLOCK : 0;
260			}
261			}
262
263	root	1.169	package DC::Layout;
264	root	1.97
265	root	1.169	$DC::OpenGL::INIT_HOOK{"DC::Layout"} = sub {
266	root	1.164	glyph_cache_restore;
267			};
268
269	root	1.169	$DC::OpenGL::SHUTDOWN_HOOK{"DC::Layout"} = sub {
270	root	1.164	glyph_cache_backup;
271	root	1.97	};
272
273	root	1.1	1;
274
275			=back
276
277			=head1 AUTHOR
278
279			Marc Lehmann <schmorp@schmorp.de>
280			http://home.schmorp.de/
281
282			=cut
283