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