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|
{ config, pkgs, ... }:
with config.krebs.lib;
let
name = "radio";
mainUser = config.users.extraUsers.mainUser;
inherit (config.krebs.lib) genid;
admin-password = import <secrets/icecast-admin-pw>;
source-password = import <secrets/icecast-source-pw>;
add_random = pkgs.writeDashBin "add_random" ''
${pkgs.mpc_cli}/bin/mpc add "$(${pkgs.mpc_cli}/bin/mpc ls | shuf -n1)"
'';
skip_track = pkgs.writeDashBin "skip_track" ''
${add_random}/bin/add_random
echo skipping: "$(${print_current}/bin/print_current)"
${pkgs.mpc_cli}/bin/mpc -q next
'';
print_current = pkgs.writeDashBin "print_current" ''
echo "$(${pkgs.mpc_cli}/bin/mpc current -f %file%) \
$(${pkgs.mpc_cli}/bin/mpc current -f %file% \
| ${pkgs.gnused}/bin/sed 's@.*\(.\{11\}\)\.ogg@http://www.youtube.com/watch?v=\1@')"
'';
in {
users.users = {
"${name}" = rec {
inherit name;
group = name;
uid = genid name;
description = "radio manager";
home = "/home/${name}";
useDefaultShell = true;
createHome = true;
openssh.authorizedKeys.keys = [
config.krebs.users.lass.pubkey
];
};
};
users.groups = {
"radio" = {};
};
krebs.per-user.${name}.packages = with pkgs; [
add_random
skip_track
print_current
ncmpcpp
mpc_cli
];
security.sudo.extraConfig = ''
${mainUser.name} ALL=(${name}) NOPASSWD: ALL
'';
services.mpd = {
enable = true;
group = "radio";
musicDirectory = "/home/radio/the_playlist/music";
extraConfig = ''
audio_output {
type "shout"
encoding "ogg"
name "my cool stream"
host "localhost"
port "8000"
mount "/radio.ogg"
# This is the source password in icecast.xml
password "${source-password}"
# Set either quality or bit rate
# quality "5.0"
bitrate "128"
format "44100:16:1"
# Optional Parameters
user "source"
# description "here is my long description"
# genre "jazz"
} # end of audio_output
'';
};
services.icecast = {
enable = true;
hostname = "config.krebs.build.host.name";
admin.password = admin-password;
extraConf = ''
<authentication>
<source-password>${source-password}</source-password>
</authentication>
'';
};
krebs.iptables = {
tables = {
filter.INPUT.rules = [
{ predicate = "-p tcp --dport 8000"; target = "ACCEPT"; }
];
};
};
systemd.timers.radio = {
description = "radio autoadder timer";
wantedBy = [ "timers.target" ];
timerConfig = {
OnCalendar = "*:*";
};
};
systemd.services.radio = let
autoAdd = pkgs.writeDash "autoAdd" ''
LIMIT=$1 #in secconds
timeLeft () {
playlistDuration=$(${pkgs.mpc_cli}/bin/mpc --format '%time%' playlist | ${pkgs.gawk}/bin/awk -F ':' 'BEGIN{t=0} {t+=$1*60+$2} END{print t}')
currentTime=$(${pkgs.mpc_cli}/bin/mpc status | ${pkgs.gawk}/bin/awk '/^\[playing\]/ { sub(/\/.+/,"",$3); split($3,a,/:/); print a[1]*60+a[2] }')
expr ''${playlistDuration:-0} - ''${currentTime:-0}
}
if test $(timeLeft) -le $LIMIT; then
${add_random}/bin/add_random
fi
'';
in {
description = "radio playlist autoadder";
after = [ "network.target" ];
restartIfChanged = true;
serviceConfig = {
Restart = "always";
ExecStart = "${autoAdd} 100";
};
};
krebs.Reaktor = {
enable = true;
nickname = "the_playlist|r";
channels = [ "#the_playlist" ];
extraEnviron = {
REAKTOR_HOST = "irc.freenode.org";
};
plugins = with pkgs.ReaktorPlugins; [
(buildSimpleReaktorPlugin "skip" {
script = "${skip_track}/bin/skip_track";
pattern = "^skip$";
})
(buildSimpleReaktorPlugin "current" {
script = "${print_current}/bin/print_current";
pattern = "^current$";
})
];
};
krebs.nginx.servers."lassul.us".locations = let
html = pkgs.writeText "index.html" ''
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>lassulus playlist</title>
</head>
<body>
<div style="display:inline-block;margin:0px;padding:0px;overflow:hidden">
<iframe src="https://kiwiirc.com/client/irc.freenode.org/?nick=kiwi_test|?&theme=cli#the_playlist" frameborder="0" style="overflow:hidden;overflow-x:hidden;overflow-y:hidden;height:95%;width:100%;position:absolute;top:0px;left:0px;right:0px;bottom:0px" height="95%" width="100%"></iframe>
</div>
<div style="position:absolute;bottom:1px;display:inline-block;background-color:red;">
<audio controls autoplay="autoplay"><source src="http://lassul.us:8000/radio.ogg" type="audio/ogg">Your browser does not support the audio element.</audio>
</div>
<!-- page content -->
</body>
</html>
'';
in [
(nameValuePair "/the_playlist" ''
default_type "text/html";
alias ${html};
'')
];
}
|
