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 = '2.05';

   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);

=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:	1.207
Committed:	Tue Sep 15 18:49:55 2009 UTC (14 years, 7 months ago) by root
Branch:	MAIN
CVS Tags:	rel-2_05
Changes since 1.206:	+1 -1 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	1.207	$VERSION = '2.05';
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	1.133	=item shorten $string[, $maxlength]
42
43			=cut
44
45			sub shorten($;$) {
46			my ($str, $len) = @_;
47			substr $str, $len, (length $str), "..." if $len + 3 <= length $str;
48			$str
49			}
50
51	root	1.105	sub asxml($) {
52			local $_ = $_[0];
53	root	1.89
54	root	1.105	s/&/&/g;
55			s/>/>/g;
56			s/</</g;
57	root	1.89
58	root	1.105	$_
59	root	1.89	}
60
61	root	1.127	sub background(&;&) {
62			my ($bg, $cb) = @_;
63	root	1.123
64	root	1.200	my ($fh_r, $fh_w) = AnyEvent::Util::portable_socketpair
65			or die "unable to create background socketpair: $!";
66	root	1.123
67			my $pid = fork;
68
69			if (defined $pid && !$pid) {
70	root	1.124	local $SIG{__DIE__};
71	root	1.123
72			open STDOUT, ">&", $fh_w;
73			open STDERR, ">&", $fh_w;
74			close $fh_r;
75			close $fh_w;
76
77			$\| = 1;
78
79	root	1.127	eval { $bg->() };
80	root	1.124
81			if ($@) {
82			my $msg = $@;
83			$msg =~ s/\n+/\n/;
84			warn "FATAL: $msg";
85	root	1.169	DC::_exit 1;
86	root	1.124	}
87	root	1.123
88			# win32 is fucked up, of course. exit will clean stuff up,
89			# which destroys our database etc. _exit will exit ALL
90			# forked processes, because of the dreaded fork emulation.
91	root	1.169	DC::_exit 0;
92	root	1.123	}
93
94			close $fh_w;
95
96			my $buffer;
97
98	root	1.126	my $w; $w = AnyEvent->io (fh => $fh_r, poll => 'r', cb => sub {
99	root	1.123	unless (sysread $fh_r, $buffer, 4096, length $buffer) {
100	root	1.126	undef $w;
101	root	1.127	$cb->();
102			return;
103	root	1.123	}
104
105			while ($buffer =~ s/^(.*)\n//) {
106			my $line = $1;
107	root	1.124	$line =~ s/\s+$//;
108	root	1.123	utf8::decode $line;
109	root	1.127	if ($line =~ /^\x{e877}json_msg (.*)$/s) {
110	root	1.139	$cb->(JSON::XS->new->allow_nonref->decode ($1));
111	root	1.127	} else {
112			::message ({
113	root	1.169	markup => "background($pid): " . DC::asxml $line,
114	root	1.127	});
115			}
116	root	1.123	}
117			});
118			}
119
120	root	1.127	sub background_msg {
121			my ($msg) = @_;
122
123	root	1.139	$msg = "\x{e877}json_msg " . JSON::XS->new->allow_nonref->encode ($msg);
124	root	1.127	$msg =~ s/\n//g;
125			utf8::encode $msg;
126			print $msg, "\n";
127			}
128
129	root	1.169	package DC;
130	root	1.52
131	root	1.191	our $RC_THEME;
132	root	1.192	our %THEME;
133	root	1.191	our @RC_PATH;
134	root	1.187	our $RC_BASE;
135
136			for (grep !ref, @INC) {
137			$RC_BASE = "$_/Deliantra/Client/private/resources";
138			last if -d $RC_BASE;
139			}
140
141	root	1.5	sub find_rcfile($) {
142			my $path;
143
144	root	1.191	for (@RC_PATH, "") {
145	root	1.189	$path = "$RC_BASE/$_/$_[0]";
146	root	1.205	return $path if -e $path;
147	root	1.189	}
148	root	1.5
149	root	1.187	die "FATAL: can't find required file \"$_[0]\" in \"$RC_BASE\"\n";
150	root	1.5	}
151
152	root	1.192	sub load_json($) {
153			my ($file) = @_;
154
155			open my $fh, $file
156			or return;
157
158			local $/;
159	root	1.203	eval { JSON::XS->new->utf8->relaxed->decode (<$fh>) }
160	root	1.192	}
161
162	root	1.191	sub set_theme($) {
163			return if $RC_THEME eq $_[0];
164			$RC_THEME = $_[0];
165
166	root	1.192	# kind of hacky, find the main theme file, then load all theme files and merge them
167
168			%THEME = ();
169	root	1.191	@RC_PATH = "theme-$RC_THEME";
170
171	root	1.192	my $theme = load_json find_rcfile "theme.json"
172			or die "FATAL: theme resource file not found";
173	root	1.191
174	root	1.192	@RC_PATH = @{ $theme->{path} } if $theme->{path};
175
176			for (@RC_PATH, "") {
177			my $theme = load_json "$RC_BASE/$_/theme.json"
178			or next;
179
180			%THEME = ( %$theme, %THEME );
181	root	1.191	}
182			}
183
184	root	1.5	sub read_cfg {
185			my ($file) = @_;
186
187	root	1.201	$::CFG = (load_json $file) \|\| (load_json "$file.bak");
188	root	1.5	}
189
190			sub write_cfg {
191	root	1.178	my $file = "$Deliantra::VARDIR/client.cf";
192	root	1.5
193	root	1.107	$::CFG->{VERSION} = $::VERSION;
194	root	1.201	$::CFG->{layout} = DC::UI::get_layout ();
195	root	1.107
196	root	1.201	open my $fh, ">:utf8", "$file~"
197	root	1.5	or return;
198	root	1.180	print $fh JSON::XS->new->utf8->pretty->encode ($::CFG);
199	root	1.201	close $fh;
200
201			rename $file, "$file.bak";
202			rename "$file~", $file;
203	root	1.5	}
204
205	root	1.122	sub http_proxy {
206			my @proxy = win32_proxy_info;
207
208			if (@proxy) {
209			"http://" . (@proxy < 2 ? "" : @proxy < 3 ? "$proxy[1]\@" : "$proxy[1]:$proxy[2]\@") . $proxy[0]
210			} elsif (exists $ENV{http_proxy}) {
211			$ENV{http_proxy}
212			} else {
213			()
214			}
215			}
216
217			sub set_proxy {
218			my $proxy = http_proxy
219			or return;
220
221			$ENV{http_proxy} = $proxy;
222			}
223
224	root	1.127	sub lwp_useragent {
225			require LWP::UserAgent;
226
227	root	1.169	DC::set_proxy;
228	root	1.127
229			my $ua = LWP::UserAgent->new (
230	root	1.171	agent => "deliantra $VERSION",
231	root	1.127	keep_alive => 1,
232			env_proxy => 1,
233			timeout => 30,
234			);
235			}
236
237			sub lwp_check($) {
238			my ($res) = @_;
239
240			$res->is_error
241			and die $res->status_line;
242
243			$res
244			}
245
246	root	1.141	sub fh_nonblocking($$) {
247			my ($fh, $nb) = @_;
248
249	root	1.142	if ($^O eq "MSWin32") {
250			$nb = (! ! $nb) + 0;
251	root	1.143	ioctl $fh, 0x8004667e, \$nb; # FIONBIO
252	root	1.141	} else {
253			fcntl $fh, &Fcntl::F_SETFL, $nb ? &Fcntl::O_NONBLOCK : 0;
254			}
255			}
256
257	root	1.169	package DC::Layout;
258	root	1.97
259	root	1.169	$DC::OpenGL::INIT_HOOK{"DC::Layout"} = sub {
260	root	1.164	glyph_cache_restore;
261			};
262
263	root	1.169	$DC::OpenGL::SHUTDOWN_HOOK{"DC::Layout"} = sub {
264	root	1.164	glyph_cache_backup;
265	root	1.97	};
266
267	root	1.1	1;
268
269			=back
270
271			=head1 AUTHOR
272
273			Marc Lehmann <schmorp@schmorp.de>
274			http://home.schmorp.de/
275
276			=cut
277