{ config, pkgs, ... }: with import <stockholm/lib>; let name = "radio"; mainUser = config.users.extraUsers.mainUser; admin-password = import <secrets/icecast-admin-pw>; source-password = import <secrets/icecast-source-pw>; add_random = pkgs.writeDashBin "add_random" '' ${pkgs.mpc_cli}/bin/mpc add "$(${pkgs.mpc_cli}/bin/mpc ls the_playlist/music | grep '\.ogg$' | 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 = { "${name}" = rec { inherit name; group = name; uid = genid_uint31 name; description = "radio manager"; home = "/home/${name}"; useDefaultShell = true; createHome = true; openssh.authorizedKeys.keys = with config.krebs.users; [ lass.pubkey lass-mors.pubkey ]; }; }; users.groups = { "radio" = {}; }; krebs.per-user.${name}.packages = with pkgs; [ add_random skip_track print_current ncmpcpp mpc_cli ]; services.mpd = { enable = true; group = "radio"; musicDirectory = "/home/radio/music"; extraConfig = '' log_level "default" auto_update "yes" audio_output { type "shout" encoding "lame" name "the_playlist_mp3" host "localhost" port "8000" mount "/radio.mp3" password "${source-password}" bitrate "128" format "44100:16:2" user "source" genre "good music" } audio_output { type "shout" encoding "ogg" name "the_playlist_ogg" host "localhost" port "8000" mount "/radio.ogg" password "${source-password}" bitrate "128" format "44100:16:2" user "source" genre "good music" } ''; }; services.icecast = { enable = true; hostname = "radio.lassul.us"; admin.password = admin-password; extraConf = '' <mount> <mount-name>/radio.mp3</mount-name> <password>${source-password}</password> </mount> <mount> <mount-name>/radio.ogg</mount-name> <password>${source-password}</password> </mount> ''; }; 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 = "*:0/1"; }; }; 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 ${pkgs.mpc_cli}/bin/mpc play > /dev/null ''; in { description = "radio playlist autoadder"; after = [ "network.target" ]; restartIfChanged = true; serviceConfig = { ExecStart = "${autoAdd} 150"; }; }; systemd.services.radio-recent = let recentlyPlayed = pkgs.writeDash "recentlyPlayed" '' LIMIT=1000 #how many tracks to keep in the history HISTORY_FILE=/tmp/played while :; do ${pkgs.mpc_cli}/bin/mpc idle player > /dev/null ${pkgs.mpc_cli}/bin/mpc current -f %file% done | while read track; do echo "$(date -Is)" "$track" | tee -a "$HISTORY_FILE" echo "$(tail -$LIMIT "$HISTORY_FILE")" > "$HISTORY_FILE" done ''; in { description = "radio recently played"; after = [ "mpd.service" "network.target" ]; wantedBy = [ "multi-user.target" ]; restartIfChanged = true; serviceConfig = { ExecStart = recentlyPlayed; }; }; krebs.reaktor2.the_playlist = { hostname = "irc.freenode.org"; port = "6697"; useTLS = true; nick = "the_playlist"; plugins = [ { plugin = "register"; config = { channels = [ "#the_playlist" "#krebs" ]; }; } { plugin = "system"; config = { workdir = config.krebs.reaktor2.the_playlist.stateDir; hooks.PRIVMSG = [ { #activate = "match"; pattern = "^\\s*([0-9A-Za-z._][0-9A-Za-z._-]*)(?:\\s+(.*\\S))?\\s*$"; command = 1; arguments = [2]; commands = { skip.filename = "${skip_track}/bin/skip_track"; current.filename = "${print_current}/bin/print_current"; suggest.filename = pkgs.writeDash "suggest" '' echo "$@" >> playlist_suggest ''; }; } ]; }; } ]; }; services.nginx = { enable = true; virtualHosts."radio.lassul.us" = { forceSSL = true; enableACME = true; locations."/".extraConfig = '' proxy_set_header Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Host $host; proxy_set_header X-Forwarded-Server $host; proxy_set_header X-Real-IP $remote_addr; proxy_pass http://localhost:8000; ''; locations."/recent".extraConfig = '' alias /tmp/played; ''; }; virtualHosts."lassul.us".locations."/the_playlist".extraConfig = 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 '' default_type "text/html"; alias ${html}; ''; }; krebs.syncthing.folders."the_playlist" = { path = "/home/radio/music/the_playlist"; peers = [ "mors" "phone" "prism" ]; }; krebs.permown."/home/radio/music/the_playlist" = { owner = "radio"; group = "syncthing"; umask = "0002"; }; }