diff options
Diffstat (limited to 'lass/2configs/radio.nix')
| -rw-r--r-- | lass/2configs/radio.nix | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/lass/2configs/radio.nix b/lass/2configs/radio.nix new file mode 100644 index 000000000..17be327b9 --- /dev/null +++ b/lass/2configs/radio.nix @@ -0,0 +1,195 @@ +{ 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" '' + mpc add "$(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 + tmux + ]; + + 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=$1 #in secconds + + timeLeft () { + playlistDuration=$(mpc --format '%time%' playlist | awk -F ':' 'BEGIN{t=0} {t+=$1*60+$2} END{print t}') + currentTime=$(mpc status | awk '/^\[playing\]/ { sub(/\/.+/,"",$3); split($3,a,/:/); print a[1]*60+a[2] }') + expr ''${playlistDuration:-0} - ''${currentTime:-0} + } + + if test $(timeLeft) -le $LIMIT; then + ${add_random}/bin/add_random + fi + ''; + in { + description = "radio playlist autoadder"; + after = [ "network.target" ]; + + path = with pkgs; [ + gawk + mpc_cli + ]; + + restartIfChanged = true; + + serviceConfig = { + Restart = "always"; + ExecStart = "${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}; + '') + ]; +} |