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joko |
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package gdclient; |
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use strict; |
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use warnings; |
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require Exporter; |
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use IO::Socket; |
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use Data::Dumper; |
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our @ISA = qw( Exporter ); |
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joko |
1.2 |
our @EXPORT = qw( gd_connect gd_disconnect gd_command lcddi_parse_response ); |
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joko |
1.1 |
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joko |
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my $DEBUG = 0; |
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joko |
1.1 |
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my $sock; |
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sub gd_connect { |
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my $host = shift; |
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my $port = shift; |
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$host ||= `hostname -i`; |
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$port ||= 26468; |
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$sock = IO::Socket::INET->new(PeerAddr => $host, |
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PeerPort => $port, |
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Proto => 'tcp') or die($@); |
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} |
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sub gd_disconnect { |
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$sock->close(); |
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} |
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sub gd_command { |
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my $cmd = shift; |
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joko |
1.2 |
my $args = shift; |
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my $read_response = shift; |
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my @args; |
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if ($args) { @args = @$args; } |
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my $command = join("\t", $cmd, @args); |
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print "command: '", $command, "'\n" if $DEBUG; |
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if ($sock->send($command . "\n")) { |
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if ($read_response) { |
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#print "read-response", "\n" if $DEBUG; |
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return gd_read_response(); |
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} |
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} |
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joko |
1.1 |
} |
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joko |
1.2 |
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sub gd_read_response { |
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my $buffer; |
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my $char = ''; |
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my $doread = 1; |
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while ($doread) { |
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my $newchar; |
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$doread = $sock->read($newchar, 1); |
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# terminate socket if buffer is empty and one newline has arrived |
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last if (!$buffer && $newchar eq "\n"); |
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# terminate socket read when two consecutive newlines have arrived |
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last if (!$doread || ($newchar eq $char and $char eq "\n")); |
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$char = $newchar; |
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$buffer .= $char; |
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} |
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chomp($buffer) if $buffer; |
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return $buffer; |
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} |
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=pod example payload: |
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my $payload = [ |
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'Guano Apes', |
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'Open Your Eyes', |
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'', |
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'', |
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'', |
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'', |
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'0', |
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'0', |
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'189', |
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'0', |
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'1e0c1f12', |
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'1', |
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'', |
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'0', |
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'0', |
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'', |
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'', |
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'mp3 192' |
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]; |
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=pod field definition: |
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$columns = [qw( artist title genre1 genre2 year lang type rating length source sourceid tracknb audiofile condition voladjust created id bitrate )]; |
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=cut |
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sub lcddi_parse_response { |
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my $payload = shift; |
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my @lines = split("\n", $payload); |
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# prepare album metadata |
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my $label = shift(@lines); |
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$label =~ s/\r//g; |
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my @title = split("\t", $label); |
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my $data = { 'artist' => $title[0], 'album' => $title[1], 'cddb_id' => $title[2], 'tracks' => [] }; |
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foreach my $line (@lines) { |
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chomp($line); |
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#print $line, "\n"; |
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my @entry = split("\t", $line); |
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splice(@entry, -3, 1); |
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push(@{$data->{'tracks'}}, \@entry); |
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} |
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return $data; |
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} |
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joko |
1.1 |
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############################################################################### |
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