| 1 |
package SOMEConnection; |
| 2 |
use strict; |
| 3 |
use Socket; |
| 4 |
use AnyEvent; |
| 5 |
use IO::Socket::INET; |
| 6 |
|
| 7 |
sub new { |
| 8 |
my $this = shift; |
| 9 |
my $class = ref($this) || $this; |
| 10 |
my $self = {@_}; |
| 11 |
bless $self, $class; |
| 12 |
return $self; |
| 13 |
} |
| 14 |
|
| 15 |
sub client_connect { |
| 16 |
my ($self, $lid) = @_; |
| 17 |
} |
| 18 |
|
| 19 |
sub client_disconnect { |
| 20 |
my ($self, $lid) = @_; |
| 21 |
} |
| 22 |
|
| 23 |
sub start_listener { |
| 24 |
my ($self) = @_; |
| 25 |
|
| 26 |
my $sock = IO::Socket::INET->new( |
| 27 |
Listen => 5, |
| 28 |
ReuseAddr => 1, |
| 29 |
Reuse => 1, |
| 30 |
LocalPort => 1236, |
| 31 |
Proto => 'tcp' |
| 32 |
); |
| 33 |
|
| 34 |
$sock or die "Couldn't create listener: $!"; |
| 35 |
|
| 36 |
$self->{listener} = |
| 37 |
AnyEvent->io (poll => 'r', fh => $sock, cb => sub { |
| 38 |
my $cl = $sock->accept () |
| 39 |
or die "couldn't accept client: $!"; |
| 40 |
binmode $cl; |
| 41 |
$cl->autoflush (1); |
| 42 |
$self->handle_client ($cl); |
| 43 |
}); |
| 44 |
} |
| 45 |
|
| 46 |
sub write_data { |
| 47 |
my ($self, $lid, $data) = @_; |
| 48 |
return unless $self->{$lid . '_r'}; |
| 49 |
|
| 50 |
my $cl = $self->{$lid}->{socket}; |
| 51 |
$self->{$lid}->{write_buffer} .= $data; |
| 52 |
|
| 53 |
unless ($self->{$lid . '_w'}) { |
| 54 |
$self->{$lid . '_w'} = |
| 55 |
AnyEvent->io (poll => 'w', fh => $cl, cb => sub { |
| 56 |
if (my $data = $self->{$lid}->{write_buffer}) { |
| 57 |
my $len = syswrite $cl, $data; |
| 58 |
unless ($len) { |
| 59 |
if (not defined $len) { |
| 60 |
warn "error when writing data on $lid: $!"; |
| 61 |
return; |
| 62 |
} else { |
| 63 |
delete $self->{$lid . '_w'}; |
| 64 |
} |
| 65 |
} |
| 66 |
|
| 67 |
if ($len == length $self->{$lid}->{write_buffer}) { |
| 68 |
delete $self->{$lid . '_w'}; |
| 69 |
} |
| 70 |
|
| 71 |
$self->{$lid}->{write_buffer} = substr $self->{$lid}->{write_buffer}, $len; |
| 72 |
} |
| 73 |
}); |
| 74 |
} |
| 75 |
} |
| 76 |
|
| 77 |
sub handle_client { |
| 78 |
my ($self, $cl) = @_; |
| 79 |
my ($chost, $cport) = ($cl->peerhost (), $cl->peerport ()); |
| 80 |
my $lid = "$chost:$cport"; |
| 81 |
|
| 82 |
$self->{$lid}->{socket} = $cl; |
| 83 |
|
| 84 |
$self->{$lid . '_r'} = |
| 85 |
AnyEvent->io (poll => 'r', fh => $cl, cb => sub { |
| 86 |
my $res = sysread $cl, my $data, 1024; |
| 87 |
if ($res) { |
| 88 |
$self->{$lid}->{read_buffer} .= $data; |
| 89 |
$self->handle_data ($lid, \$self->{$lid}->{read_buffer}); |
| 90 |
} else { |
| 91 |
if (not defined $res) { |
| 92 |
warn "error when receiving data on $lid: $!"; |
| 93 |
} else { |
| 94 |
warn "got eof on $lid: $!"; |
| 95 |
} |
| 96 |
$self->close_client ($lid); |
| 97 |
} |
| 98 |
}); |
| 99 |
|
| 100 |
$self->client_connect ($lid); |
| 101 |
} |
| 102 |
|
| 103 |
sub handle_data { |
| 104 |
my ($self, $lid, $buf) = @_; |
| 105 |
die "implement"; |
| 106 |
} |
| 107 |
|
| 108 |
sub close_client { |
| 109 |
my ($self, $lid) = @_; |
| 110 |
eval { delete $self->{$lid}->{socket} }; |
| 111 |
delete $self->{$lid . '_r'}; |
| 112 |
delete $self->{$lid . '_w'}; |
| 113 |
delete $self->{$lid}; |
| 114 |
$self->client_disconnect ($lid); |
| 115 |
} |
| 116 |
|
| 117 |
package JSONConnection; |
| 118 |
use strict; |
| 119 |
our @ISA = qw/SOMEConnection/; |
| 120 |
use JSON::Syck; |
| 121 |
|
| 122 |
our %CLIENTS; |
| 123 |
|
| 124 |
sub client_connect { |
| 125 |
my ($self, $lid) = @_; |
| 126 |
$CLIENTS{$lid} = 1; |
| 127 |
$self->{connect_cb}->($self, $lid); |
| 128 |
} |
| 129 |
|
| 130 |
sub client_disconnect { |
| 131 |
my ($self, $lid) = @_; |
| 132 |
delete $CLIENTS{$lid}; |
| 133 |
} |
| 134 |
|
| 135 |
sub broadcast { |
| 136 |
my ($self, $data) = @_; |
| 137 |
for (keys %CLIENTS) { |
| 138 |
$self->send_data ($_, $data); |
| 139 |
} |
| 140 |
} |
| 141 |
|
| 142 |
sub send_data { |
| 143 |
my ($self, $lid, $data) = @_; |
| 144 |
|
| 145 |
my $dump = JSON::Syck::Dump ($data); |
| 146 |
$self->write_data ($lid, (length $dump) . " " . $dump . "\015\012"); |
| 147 |
} |
| 148 |
|
| 149 |
sub handle_data { |
| 150 |
my ($self, $lid, $buf) = @_; |
| 151 |
|
| 152 |
if ($$buf =~ m/^(\s*(\d+) )(.*)$/) { |
| 153 |
my ($prefix, $len, $rembuf) = ($1, $2, $3); |
| 154 |
if ((length $rembuf) >= $len) { |
| 155 |
my $data = substr $rembuf, 0, $len; |
| 156 |
substr $$buf, 0, (length $prefix) + (length $data), ''; |
| 157 |
$self->{packet_cb}->($self, $lid, JSON::Syck::Load ($data)); |
| 158 |
} |
| 159 |
} |
| 160 |
} |
| 161 |
|
| 162 |
package JSONClientConnection; |
| 163 |
use strict; |
| 164 |
use JSON::Syck; |
| 165 |
|
| 166 |
sub new { |
| 167 |
my $this = shift; |
| 168 |
my $class = ref($this) || $this; |
| 169 |
my $self = {@_}; |
| 170 |
bless $self, $class; |
| 171 |
return $self; |
| 172 |
} |
| 173 |
|
| 174 |
sub connect { |
| 175 |
my ($self, $host, $port) = @_; |
| 176 |
|
| 177 |
$self->{socket} |
| 178 |
and return; |
| 179 |
|
| 180 |
my $sock = IO::Socket::INET->new ( |
| 181 |
PeerAddr => $host, |
| 182 |
PeerPort => $port, |
| 183 |
Proto => 'tcp', |
| 184 |
Blocking => 0 |
| 185 |
) or die "couldn't connect to irc server '$host:$port': $!\n";; |
| 186 |
|
| 187 |
$self->{socket} = $sock; |
| 188 |
$self->{host} = $host; |
| 189 |
$self->{port} = $port; |
| 190 |
|
| 191 |
$self->{r} = |
| 192 |
AnyEvent->io (poll => 'r', fh => $sock, cb => sub { |
| 193 |
my $l = sysread $sock, my $data, 1024; |
| 194 |
|
| 195 |
$self->{read_buffer} .= $data; |
| 196 |
$self->handle_data (\$self->{read_buffer}); |
| 197 |
|
| 198 |
unless ($l) { |
| 199 |
if (defined $l) { |
| 200 |
$self->disconnect ("EOF from json server '$host:$port'"); |
| 201 |
return; |
| 202 |
|
| 203 |
} else { |
| 204 |
$self->disconnect ("Error while reading from json server '$host:$port': $!"); |
| 205 |
return; |
| 206 |
} |
| 207 |
} |
| 208 |
}); |
| 209 |
} |
| 210 |
|
| 211 |
sub handle_data { |
| 212 |
my ($self, $buf) = @_; |
| 213 |
|
| 214 |
if ($$buf =~ m/^(\s*(\d+) )(.*)$/) { |
| 215 |
my ($prefix, $len, $rembuf) = ($1, $2, $3); |
| 216 |
if ((length $rembuf) >= $len) { |
| 217 |
my $data = substr $rembuf, 0, $len; |
| 218 |
substr $$buf, 0, (length $prefix) + (length $data), ''; |
| 219 |
$self->{packet_cb}->($self, JSON::Syck::Load ($data)); |
| 220 |
} |
| 221 |
} |
| 222 |
} |
| 223 |
|
| 224 |
sub send_data { |
| 225 |
my ($self, $data) = @_; |
| 226 |
my $dump = JSON::Syck::Dump ($data); |
| 227 |
$self->write_data ((length $dump) . " " . $dump . "\015\012"); |
| 228 |
} |
| 229 |
|
| 230 |
sub write_data { |
| 231 |
my ($self, $data) = @_; |
| 232 |
return unless $self->{r}; |
| 233 |
|
| 234 |
my $cl = $self->{socket}; |
| 235 |
$self->{write_buffer} .= $data; |
| 236 |
|
| 237 |
unless ($self->{w}) { |
| 238 |
$self->{w} = |
| 239 |
AnyEvent->io (poll => 'w', fh => $cl, cb => sub { |
| 240 |
if (my $data = $self->{write_buffer}) { |
| 241 |
my $len = syswrite $cl, $data; |
| 242 |
unless ($len) { |
| 243 |
if (not defined $len) { |
| 244 |
warn "error when writing data on $self->{host}:$self->{port}: $!"; |
| 245 |
return; |
| 246 |
} else { |
| 247 |
delete $self->{w}; |
| 248 |
} |
| 249 |
} |
| 250 |
|
| 251 |
if ($len == length $self->{write_buffer}) { |
| 252 |
delete $self->{w}; |
| 253 |
} |
| 254 |
|
| 255 |
$self->{write_buffer} = substr $self->{write_buffer}, $len; |
| 256 |
} |
| 257 |
}); |
| 258 |
} |
| 259 |
} |
| 260 |
|
| 261 |
1; |
