Audio-Daemon-MPG123
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MPG123/Server.pm view on Meta::CPAN
my $class = shift;
die "Cannot find Audio::Play::MPG123" if (! $HAVEPLAY);
my $self = $class->SUPER::new(@_);
bless $self, $class;
# initilize current playlist
$self->{playlist} = [];
# initialize random index.
$self->{random} = [];
$self->{revrandom} = [];
# initilize my current states of various things
$self->{state} = {random => 0, repeat => 0, state => 0};
if ($self->{Allow}) {
$self->parse_acl('Allow');
}
if ($self->{Deny}) {
$self->parse_acl('Deny');
}
return $self;
}
sub player {
my $self = shift;
$self->{player} = shift if (scalar @_);
return $self->{player};
}
sub randomize {
my $self = shift;
my $start = shift;
return unless (ref $start eq 'ARRAY');
my @stack;
my $count = 0;
while (scalar @$start) {
my $pick = int (rand() * (scalar @$start));
push @stack, $start->[$pick];
$self->debug("Picked out index $pick with val of ".$start->[$pick]);
splice(@{$start}, $pick, 1);
}
$self->{random} = \@stack;
my @revstack;
foreach my $t (0..$#stack) {
$revstack[$stack[$t]] = $t
}
$self->{revrandom} = \@revstack;
}
sub stop {
my $self = shift;
my $player = $self->player;
$self->{state}{state} = 0;
$player->stop;
}
sub play {
my $self = shift;
my $remote = shift;
my $player = $self->player;
if (defined $remote && ref $remote && scalar @{$remote->{args}}) {
if ($self->{state}{random}) {
$self->{state}{renid} = $self->{revrandom}[$remote->{args}[0]];
$self->{state}{regid} = $remote->{args}[0];
}
} elsif ($player->state == 1) {
$player->pause; # toggles pause flag (starts playing)
return;
}
$self->debug("Random is ".($self->{state}{random})?'true':'false');
my $id = $self->{state}{regid};
$self->info("Setting current playlist id to $id and song to ".$self->{playlist}[$id]);
my $retval = eval { $player->load($self->{playlist}[$id]); };
}
sub pause {
my $self = shift;
my $player = $self->player;
$player->pause;
}
sub add {
my $self = shift;
my $remote = shift;
push @{$self->{playlist}}, @{$remote->{args}};
# create array of indexes:
my @trandom = map { $_ } (0..$#{$self->{playlist}});
$self->randomize(\@trandom);
# if we have a "new" list, start playing otherwise continue on
if (scalar @{$self->{playlist}} == scalar @{$remote->{args}}) {
if ($self->{state}{random}) {
$self->{state}{ranid} = 0;
$self->{state}{regid} = $self->{random}[0];
} else {
$self->{state}{regid} = 0;
$self->{state}{ranid} = $self->{revrandom}[0];
}
$self->debug("Setting regid to ".$self->{state}{regid}." and ranid to ".$self->{state}{ranid});
$self->play;
}
}
sub del {
my $self = shift;
my $remote = shift;
my $player = $self->player;
if ($remote->{args}[0] eq 'all') {
$self->{playlist} = [];
$player->stop;
} elsif (scalar @{$remote->{args}}) {
my @args = sort { $b <=> $a } @{$remote->{args}};
foreach my $index (@args) {
splice(@{$self->{playlist}}, $index, 1);
}
my @trandom = map { $_ } (0..$#{$self->{playlist}});
$self->randomize(\@trandom);
if (scalar grep {/^$self->{state}{regid}$/} @args) {
$self->next;
}
}
}
sub next {
my $self = shift;
my $remote = shift;
$self->debug("Random and repeat: ".$self->{state}{random}."/".$self->{state}{repeat});
my $callplay = 0;
my $id;
if ($self->{state}{random}) {
$self->debug("Taking random ID ".$self->{state}{ranid}." to move forward on");
$id = $self->{state}{ranid};
} else {
$self->debug("Taking straight ID ".$self->{state}{regid}." to move forward on");
$id = $self->{state}{regid};
}
$id++;
if ($id > $#{$self->{playlist}}) {
$self->debug("end of playlist found");
$id = 0;
if ((ref $remote && $remote->{cmd} eq 'next') || $self->{state}{repeat}) {
$callplay = 1 if ($self->{state}{state} != 0);
}
} else {
$callplay = 1 if ($self->{state}{state} != 0);
}
if ($self->{state}{random}) {
$self->debug("assigning $id back to random ID");
$self->{state}{ranid} = $id;
$self->{state}{regid} = $self->{random}[$id];
} else {
$self->debug("assigning $id back to regular ID");
$self->{state}{regid} = $id;
$self->{state}{ranid} = $self->{revrandom}[$id];
}
$self->play if ($callplay);
}
sub prev {
my $self = shift;
my $remote = shift;
$self->debug("Random and repeat: ".$self->{state}{random}."/".$self->{state}{repeat});
my $id;
if ($self->{state}{random}) {
$self->debug("Taking random ID ".$self->{state}{ranid}." to move back on");
$id = $self->{state}{ranid};
} else {
$self->debug("Taking straight ID ".$self->{state}{regid}." to move back on");
$id = $self->{state}{regid};
}
$id--;
if ($id < 0) {
$self->debug("beyond beginning of playlist found");
$id = $#{$self->{playlist}};
}
if ($self->{state}{random}) {
$self->debug("assigning $id back to random ID");
$self->{state}{ranid} = $id;
$self->{state}{regid} = $self->{random}[$id];
} else {
$self->debug("assigning $id back to regular ID");
$self->{state}{regid} = $id;
$self->{state}{ranid} = $self->{revrandom}[$id];
}
$self->play if ($self->{state}{state} != 0);
}
sub random {
my $self = shift;
my $remote = shift;
my $oldstate = $self->{state}{random};
$self->debug("Trying to set ".($remote->{args}[0]));
if (scalar @{$remote->{args}}) {
$self->{state}{random} = ($remote->{args}[0]?1:0);
}
if ($oldstate != $self->{state}{random}) {
if ($self->{state}{random}) {
$self->info("Turning on Random");
} else {
$self->info("Turning off Random");
}
}
}
sub repeat {
my $self = shift;
my $remote = shift;
my $oldstate = $self->{state}{repeat};
if (scalar @{$remote->{args}}) {
$self->{state}{repeat} = ($remote->{args}[0]?1:0);
}
if ($oldstate != $self->{state}{repeat}) {
if ($self->{state}{repeat}) {
$self->info("Turning on Repeat");
} else {
$self->info("Turning off Repeat");
}
}
}
sub list {
my $self = shift;
my $remote = shift;
$self->debug(join "\n", @{$self->{playlist}});
$self->{state}{showlist} = 1;
}
sub jump {
my $self = shift;
my $remote = shift;
my $player = $self->player;
my $move = $remote->{args}[0];
(my $dval = $move) =~ s/\D//g;
my $change;
if ($move =~/^([\+\-]{1})/) {
$change = $1;
}
if ($move =~/s$/i) {
$dval = ($dval/$player->tpf);
}
$change .= $dval;
$self->info("Jumping: rcvd \"".$remote->{args}[0]."\", sending jump(".$change.")");
$player->jump($change);
}
sub vol {
my $self = shift;
my $remote = shift;
if (scalar @{$remote->{args}} && $MIXER && Audio::Mixer::set_cval('vol', @{$remote->{args}})) {
$self->error("Cannot set volume: $!");
}
}
sub get_info {
my $self = shift;
my $player = $self->player;
my @out;
push @out, "state:".$player->state;
# 0: stopped 1: Paused 2: Playing
push @out, "random:".$self->{state}{random};
push @out, "repeat:".$self->{state}{repeat};
# push @out, "randomlist:".(join ',', @{$self->{random}});
# push @out, "revrandomlist:".(join ',', @{$self->{revrandom}});
# push @out, "randomid:".$self->{state}{ranid};
push @out, "id:".$self->{state}{regid};
push @out, "frame:".(join ',', @{$player->{frame}}) if (ref $player->{frame} && scalar @{$player->{frame}});
push @out, "title:".$player->title;
push @out, "artist:".$player->artist;
push @out, "album:".$player->album;
push @out, "genre:".$player->genre;
push @out, "url:".$player->url;
my ($lvol, $rvol) = ($MIXER)?Audio::Mixer::get_cval('vol'):(undef, undef);
push @out, "vol:$lvol $rvol\n";
if ($self->{state}{showlist}) {
push @out, "list:".(join $self->{subsep}, @{$self->{playlist}});
$self->{state}{showlist} = 0;
}
$self->debug(join "\n", @out);
return \@out;
}
sub mainloop {
my $self = shift;
my $socket = $self->socket;
my $player = $self->player(new Audio::Play::MPG123);
my $s = IO::Select->new($socket);
$self->debug("Starting Main Loop, waiting for instructions");
while(1) {
if ($s->can_read(1)) {
$self->debug("-------------------------------------");
my $remote = eval { $self->read_client; };
if ($@) {
$self->crit($@);
next;
}
if (! defined $remote) {
$self->crit("big issue, reading from client came back null");
next;
}
$self->debug("Rcvd \"".$remote->{cmd}."\" from ".$remote->{ip}.':'.$remote->{port});
# nextlist
# prevlist
my @cmds = qw/add del play next nextlist prev prevlist pause
jump stop info list random repeat vol/;
if (scalar grep {/^$remote->{cmd}$/} @cmds) {
my $method = '$self->'.$remote->{cmd}.'($remote)';
eval "$method";
}
$self->send_status;
}
$player->poll(0);
if ($player->state == 0 && $self->{state}{state} == 2) {
print "Restarting next song...\n";
$self->next unless ($self->{state}{regid} == $#{$self->{playlist}} && (! $self->{state}{repeat}));
} elsif ($player->state == 0) {
# print "Stopped\n";
} elsif ($player->state == 1) {
# print "Paused\n";
} elsif ($player->state == 2) {
my ($lvol, $rvol) = Audio::Mixer::get_cval('vol') if ($MIXER);
my $out = $player->url." $lvol $rvol\n";
# print "Playing $out";
}
if ($self->{state}{state} != $player->state) {
$self->debug("State changed from ".$self->{state}{state}." to ".$player->state);
}
$self->{state}{state} = $player->state;
}
}
sub read_client {
my $self = shift;
my $socket = $self->socket;
my ($newmsg, $remote, $iaddr);
my $from_addr = $socket->recv($newmsg, 1024, undef);
($remote->{port}, $iaddr) = sockaddr_in($from_addr);
$remote->{ip} = inet_ntoa($iaddr);
$self->debug("Remote :".$remote->{ip}." : ".$remote->{port});
return unless ($self->allowed_host($remote));
unless (length $newmsg > 0) {
$self->warn("Message length was ".(length $newmsg)." returning...");
return;
}
my @a;
($remote->{cmd}, @a) = split $self->{sep}, $newmsg;
$remote->{args} = \@a;
return $remote;
}
sub allowed_host {
my $self = shift;
my $remote = shift;
my $ip = $self->convert_ip($remote->{ip});
$ip = join '', sprintf("%03d%03d%03d%03d", unpack("CCCC", $ip));
if (defined $self->{Deny} && ref $self->{Deny}) {
foreach my $ref (@{$self->{Deny}}) {
if ($ref->{low} <= $ip && $ip <= $ref->{high}) {
$self->crit('Host '.$remote->{ip}.' is denied by Deny Rule');
return 0;
}
}
}
if (defined $self->{Allow} && ref $self->{Allow}) {
foreach my $ref (@{$self->{Allow}}) {
if ($ref->{low} <= $ip && $ip <= $ref->{high}) {
$self->debug('Host '.$remote->{ip}.' is allowed by Allow rule');
return 1;
}
}
$self->crit('Host '.$remote->{ip}.' is denied by Allow Rule');
return 0;
}
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