l radio: move to 2/services

author: lassulus <git@lassul.us> 2023-02-21 10:10:53 +0100
committer: lassulus <git@lassul.us> 2023-02-21 10:10:53 +0100
commit: 5bab00f73d27a96f6ce319040b69e4d83a81e52a (patch)
tree: 5fe51f9ba61a3c5192ef050435875f9366f98a0b /lass/2configs/services/radio
parent: ad1b92ed9a85c11d522305defc77ff4c6929acad (diff)
8 files changed, 767 insertions, 0 deletions
diff --git a/lass/2configs/services/radio/container-host.nix b/lass/2configs/services/radio/container-host.nix
new file mode 100644
index 000000000..de0ea9afe
--- /dev/null
+++ b/lass/2configs/services/radio/container-host.nix
@@ -0,0 +1,23 @@
+{ config, pkgs, ... }:
+{
+  krebs.sync-containers3.containers.radio = {
+    sshKey = "${toString <secrets>}/radio.sync.key";
+  };
+  containers.radio = {
+    bindMounts."/var/music" = {
+      hostPath = "/var/music";
+      isReadOnly = false;
+    };
+  };
+  krebs.iptables.tables.filter.INPUT.rules = [
+    { predicate = "-p tcp --dport 8000"; target = "ACCEPT"; }
+  ];
+  krebs.htgen.radio-redirect = {
+    port = 8000;
+    scriptFile = pkgs.writers.writeDash "redir" ''
+      printf 'HTTP/1.1 301 Moved Permanently\r\n'
+      printf "Location: http://radio.lassul.us''${Request_URI}\r\n"
+      printf '\r\n'
+    '';
+  };
+}
diff --git a/lass/2configs/services/radio/controls.html b/lass/2configs/services/radio/controls.html
new file mode 100644
index 000000000..858dc3656
--- /dev/null
+++ b/lass/2configs/services/radio/controls.html
@@ -0,0 +1,83 @@
+<!doctype html>
+
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+
+  <title>The_Playlist Voting!</title>
+<style>
+#good {
+    display: block;
+  width: 100%;
+  border: none;
+  background-color: #04AA6D;
+  padding: 14px;
+  margin: 14px 0 0 0;
+  height: 100px;
+  font-size: 16px;
+  cursor: pointer;
+  text-align: center;
+}
+#bad {
+    display: block;
+  width: 100%;
+  border: none;
+  background-color: red;
+  padding: 14px;
+    height: 100px;
+
+  margin: 14px 0 0 0;
+  font-size: 16px;
+  cursor: pointer;
+  text-align: center;
+}
+</style>
+
+</head>
+
+<body>
+  <div id=votenote></div>
+  <button id=good type="button"> GUT </button>
+
+  <button id=bad type="button"> SCHLECHT </button>
+  <center>
+    Currently Running: <br/><div>
+      <b id=current></b>
+    </div>
+    <div id=vote>
+    </div>
+    <audio controls autoplay="autoplay">
+      <source src="https://radio.lassul.us/radio.ogg" type="audio/ogg">
+      Your browser does not support the audio element.
+    </audio>
+  </center>
+
+  <script>
+    document.getElementById("good").onclick=async ()=>{
+      let result = await fetch("https://radio.lassul.us/good", {"method": "POST"})
+      document.getElementById("vote").textContent =  "Dieses Lied findest du gut"
+    };
+    document.getElementById("bad").onclick=async ()=>{
+      let result = await fetch("https://radio.lassul.us/skip", {"method": "POST"})
+      document.getElementById("vote").textContent =  "Dieses Lied findest du schlecht"
+      document.getElementById("bad").disabled = true
+      window.setTimeout(function(){
+        document.getElementById("bad").disabled = false
+      }, 100000)
+
+    };
+
+    async function current() {
+      let result = await fetch("https://radio.lassul.us/current", {"method": "GET"})
+      let data = await result.json()
+      document.getElementById("current").textContent = data.name
+    }
+    window.onload = function() {
+      window.setInterval('current()', 10000)
+      current()
+    }
+
+  </script>
+</body>
+</html>
diff --git a/lass/2configs/services/radio/default.nix b/lass/2configs/services/radio/default.nix
new file mode 100644
index 000000000..a511196fd
--- /dev/null
+++ b/lass/2configs/services/radio/default.nix
@@ -0,0 +1,328 @@
+{ config, pkgs, lib, ... }:
+
+let
+  name = "radio";
+
+  music_dir = "/var/music";
+
+  skip_track = pkgs.writers.writeBashBin "skip_track" ''
+    set -eu
+
+    # TODO come up with new rating, without moving files
+    # current_track=$(${pkgs.curl}/bin/curl -fSs http://localhost:8002/current | ${pkgs.jq}/bin/jq -r .filename)
+    # track_infos=$(${print_current}/bin/print_current)
+    # skip_count=$(${pkgs.attr}/bin/getfattr -n user.skip_count --only-values "$current_track" || echo 0)
+    # if [[ "$current_track" =~ .*/the_playlist/music/.* ]] && [ "$skip_count" -le 2 ]; then
+    #   skip_count=$((skip_count+1))
+    #   ${pkgs.attr}/bin/setfattr -n user.skip_count -v "$skip_count" "$current_track"
+    #   echo skipping: "$track_infos" skip_count: "$skip_count"
+    # else
+    #   mkdir -p "$music_dir"/the_playlist/.graveyard/
+    #   mv "$current_track" "$music_dir"/the_playlist/.graveyard/
+    #   echo killing: "$track_infos"
+    # fi
+    ${pkgs.curl}/bin/curl -fSs -X POST http://localhost:8002/skip |
+      ${pkgs.jq}/bin/jq -r '.filename'
+  '';
+
+  good_track = pkgs.writeBashBin "good_track" ''
+    set -eu
+
+    current_track=$(${pkgs.curl}/bin/curl -fSs http://localhost:8002/current | ${pkgs.jq}/bin/jq -r .filename)
+    track_infos=$(${print_current}/bin/print_current)
+    # TODO come up with new rating, without moving files
+    # if [[ "$current_track" =~ .*/the_playlist/music/.* ]]; then
+    #   ${pkgs.attr}/bin/setfattr -n user.skip_count -v 0 "$current_track"
+    # else
+    #   mv "$current_track" "$music_dir"/the_playlist/music/ || :
+    # fi
+    echo good: "$track_infos"
+  '';
+
+  print_current = pkgs.writeDashBin "print_current" ''
+    file=$(${pkgs.curl}/bin/curl -fSs http://localhost:8002/current |
+      ${pkgs.jq}/bin/jq -r '.filename' |
+      ${pkgs.gnused}/bin/sed 's,^${music_dir},,'
+    )
+    link=$(${pkgs.curl}/bin/curl http://localhost:8002/current |
+      ${pkgs.jq}/bin/jq -r '.filename' |
+      ${pkgs.gnused}/bin/sed 's@.*\(.\{11\}\)\.ogg@https://youtu.be/\1@'
+    )
+    echo "$file": "$link"
+  '';
+
+  set_irc_topic = pkgs.writeDash "set_irc_topic" ''
+    ${pkgs.curl}/bin/curl -fsS --unix-socket /home/radio/reaktor.sock http://z/ \
+      -H content-type:application/json \
+      -d "$(${pkgs.jq}/bin/jq -n \
+        --arg text "$1" '{
+          command:"TOPIC",
+          params:["#the_playlist",$text]
+        }'
+      )"
+  '';
+
+  write_to_irc = pkgs.writeDash "write_to_irc" ''
+    ${pkgs.curl}/bin/curl -fsSv --unix-socket /home/radio/reaktor.sock http://z/ \
+      -H content-type:application/json \
+      -d "$(${pkgs.jq}/bin/jq -n \
+        --arg text "$1" '{
+          command:"PRIVMSG",
+          params:["#the_playlist",$text]
+        }'
+      )"
+  '';
+
+in {
+  imports = [
+    ./news.nix
+    ./weather.nix
+  ];
+
+  users.users = {
+    "${name}" = rec {
+      inherit name;
+      createHome = lib.mkForce false;
+      group = name;
+      uid = pkgs.stockholm.lib.genid_uint31 name;
+      description = "radio manager";
+      home = "/home/${name}";
+      useDefaultShell = true;
+      openssh.authorizedKeys.keys = with config.krebs.users; [
+        lass.pubkey
+      ];
+    };
+  };
+
+  users.groups = {
+    "radio" = {};
+  };
+
+  krebs.per-user.${name}.packages = with pkgs; [
+    good_track
+    skip_track
+    print_current
+  ];
+
+  services.liquidsoap.streams.radio = ./radio.liq;
+  systemd.services.radio = {
+    environment = {
+      RADIO_PORT = "8002";
+      HOOK_TRACK_CHANGE = pkgs.writers.writeDash "on_change" ''
+        set -xefu
+        LIMIT=1000 #how many tracks to keep in the history
+        HISTORY_FILE=/var/lib/radio/recent
+
+        listeners=$(${pkgs.curl}/bin/curl -fSs http://localhost:8000/status-json.xsl |
+          ${pkgs.jq}/bin/jq '[.icestats.source[].listeners] | add' || echo 0)
+        echo "$(${pkgs.coreutils}/bin/date -Is)" "$filename" | ${pkgs.coreutils}/bin/tee -a "$HISTORY_FILE"
+        echo "$(${pkgs.coreutils}/bin/tail -$LIMIT "$HISTORY_FILE")" > "$HISTORY_FILE"
+        ${set_irc_topic} "playing: $filename listeners: $listeners"
+      '';
+      MUSIC = "${music_dir}/the_playlist";
+      ICECAST_HOST = "localhost";
+    };
+    path = [
+      pkgs.yt-dlp
+    ];
+    serviceConfig.User = lib.mkForce "radio";
+  };
+
+  nixpkgs.config.packageOverrides = opkgs: {
+    icecast = opkgs.icecast.overrideAttrs (old: rec {
+      version = "2.5-beta3";
+
+      src = pkgs.fetchurl {
+        url = "http://downloads.xiph.org/releases/icecast/icecast-${version}.tar.gz";
+        sha256 = "sha256-4FDokoA9zBDYj8RAO/kuTHaZ6jZYBLSJZiX/IYFaCW8=";
+      };
+
+      buildInputs = old.buildInputs ++ [ pkgs.pkg-config ];
+    });
+  };
+  services.icecast = {
+    enable = true;
+    hostname = "radio.lassul.us";
+    admin.password = "hackme";
+    extraConf = ''
+      <authentication>
+        <source-password>hackme</source-password>
+        <admin-user>admin</admin-user>
+        <admin-password>hackme</admin-password>
+      </authentication>
+      <logging>
+        <accesslog>-</accesslog>
+        <errorlog>-</errorlog>
+        <loglevel>3</loglevel>
+      </logging>
+    '';
+  };
+
+  krebs.iptables = {
+    tables = {
+      filter.INPUT.rules = [
+        { predicate = "-p tcp --dport 8000"; target = "ACCEPT"; }
+        { predicate = "-i retiolum -p tcp --dport 8001"; target = "ACCEPT"; }
+      ];
+    };
+  };
+
+  # allow reaktor2 to modify files
+  systemd.services."reaktor2-the_playlist".serviceConfig.DynamicUser = lib.mkForce false;
+
+  krebs.reaktor2.the_playlist = {
+    hostname = "irc.hackint.org";
+    port = "6697";
+    useTLS = true;
+    nick = "the_playlist";
+    username = "radio";
+    API.listen = "unix:/home/radio/reaktor.sock";
+    plugins = [
+      {
+        plugin = "register";
+        config = {
+          channels = [
+            "#the_playlist"
+            "#krebs"
+          ];
+        };
+      }
+      {
+        plugin = "system";
+        config = {
+          workdir = config.krebs.reaktor2.the_playlist.stateDir;
+          hooks.PRIVMSG = [
+            {
+              activate = "match";
+              pattern = "^(?:.*\\s)?\\s*the_playlist:\\s*([0-9A-Za-z._][0-9A-Za-z._-]*)(?:\\s+(.*\\S))?\\s*$";
+              command = 1;
+              arguments = [2];
+              commands = {
+                skip.filename = "${skip_track}/bin/skip_track";
+                next.filename = "${skip_track}/bin/skip_track";
+                bad.filename = "${skip_track}/bin/skip_track";
+
+                good.filename = "${good_track}/bin/good_track";
+                nice.filename = "${good_track}/bin/good_track";
+                like.filename = "${good_track}/bin/good_track";
+
+                current.filename = "${print_current}/bin/print_current";
+                wish.filename = pkgs.writeDash "wish" ''
+                  echo "youtube-dl:$1" | ${pkgs.curl}/bin/curl -fSs http://localhost:8002/wish -d @- > /dev/null
+                '';
+                wishlist.filename = pkgs.writeDash "wishlist" ''
+                  ${pkgs.curl}/bin/curl -fSs http://localhost:8002/wish | ${pkgs.jq}/bin/jq -r '.[]'
+                '';
+                suggest.filename = pkgs.writeDash "suggest" ''
+                  echo "$@" >> playlist_suggest
+                '';
+              };
+            }
+          ];
+        };
+      }
+    ];
+  };
+
+  krebs.htgen.radio = {
+    port = 8001;
+    user = {
+      name = "radio";
+    };
+    scriptFile = pkgs.writeDash "radio" ''
+      case "$Method $Request_URI" in
+        "POST /skip")
+          printf 'HTTP/1.1 200 OK\r\n'
+          printf 'Connection: close\r\n'
+          printf '\r\n'
+          msg=$(${skip_track}/bin/skip_track)
+          ${write_to_irc} "$msg"
+          echo "$msg"
+          exit
+        ;;
+        "POST /good")
+          printf 'HTTP/1.1 200 OK\r\n'
+          printf 'Connection: close\r\n'
+          printf '\r\n'
+          msg=$(${good_track}/bin/good_track)
+          ${write_to_irc} "$msg"
+          echo "$msg"
+          exit
+        ;;
+      esac
+    '';
+  };
+
+  networking.firewall.allowedTCPPorts = [ 80 ];
+  services.nginx = {
+    enable = true;
+    virtualHosts."radio.r" = {
+      locations."/".extraConfig = ''
+        # https://github.com/aswild/icecast-notes#core-nginx-config
+        proxy_pass http://localhost:8000;
+        # Disable request size limit, very important for uploading large files
+        client_max_body_size 0;
+
+        # Enable support `Transfer-Encoding: chunked`
+        chunked_transfer_encoding on;
+
+        # Disable request and response buffering, minimize latency to/from Icecast
+        proxy_buffering off;
+        proxy_request_buffering off;
+
+        # Icecast needs HTTP/1.1, not 1.0 or 2
+        proxy_http_version 1.1;
+
+        # Forward all original request headers
+        proxy_pass_request_headers on;
+
+        # Set some standard reverse proxy headers. Icecast server currently ignores these,
+        # but may support them in a future version so that access logs are more useful.
+        proxy_set_header  Host              $host;
+        proxy_set_header  X-Real-IP         $remote_addr;
+        proxy_set_header  X-Forwarded-For   $proxy_add_x_forwarded_for;
+        proxy_set_header  X-Forwarded-Proto $scheme;
+
+        # get source ip for weather reports
+        proxy_set_header user-agent "$http_user_agent; client-ip=$remote_addr";
+      '';
+      locations."= /recent".extraConfig = ''
+        default_type "text/plain";
+        alias /var/lib/radio/recent;
+      '';
+      locations."= /current".extraConfig = ''
+        proxy_pass http://localhost:8002;
+      '';
+      locations."= /skip".extraConfig = ''
+        proxy_pass http://localhost:8001;
+      '';
+      locations."= /good".extraConfig = ''
+        proxy_pass http://localhost:8001;
+      '';
+      locations."= /radio.sh".alias = pkgs.writeScript "radio.sh" ''
+        #!/bin/sh
+        trap 'exit 0' EXIT
+        while sleep 1; do
+          mpv \
+            --cache-secs=0 --demuxer-readahead-secs=0 --untimed --cache-pause=no \
+            'http://radio.lassul.us/radio.ogg'
+        done
+      '';
+      locations."= /controls".extraConfig = ''
+        default_type "text/html";
+        alias ${./controls.html};
+      '';
+      extraConfig = ''
+        add_header 'Access-Control-Allow-Origin' '*';
+        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
+      '';
+    };
+  };
+  services.syncthing.declarative.folders."the_playlist" = {
+    path = "/var/music/the_playlist";
+    devices = [ "mors" "phone" "prism" "omo" "radio" ];
+  };
+  krebs.acl."/var/music/the_playlist"."u:syncthing:X".parents = true;
+  krebs.acl."/var/music/the_playlist"."u:syncthing:rwX" = {};
+  krebs.acl."/var/music/the_playlist"."u:radio:rwX" = {};
+}
diff --git a/lass/2configs/services/radio/news.nix b/lass/2configs/services/radio/news.nix
new file mode 100644
index 000000000..0dc711e6c
--- /dev/null
+++ b/lass/2configs/services/radio/news.nix
@@ -0,0 +1,106 @@
+{ config, lib, pkgs, ... }:
+let
+
+  send_to_radio = pkgs.writers.writeDashBin "send_to_radio" ''
+    ${pkgs.vorbis-tools}/bin/oggenc - |
+      ${pkgs.cyberlocker-tools}/bin/cput news.ogg
+    ${pkgs.curl}/bin/curl -fSs -X POST http://localhost:8002/newsshow
+  '';
+
+  gc_news = pkgs.writers.writeDashBin "gc_news" ''
+    set -xefu
+    export TZ=UTC #workaround for jq parsing wrong timestamp
+    ${pkgs.coreutils}/bin/cat $HOME/news | ${pkgs.jq}/bin/jq -cs 'map(select((.to|fromdateiso8601) > now)) | .[]' > $HOME/bla-news.tmp
+    ${pkgs.coreutils}/bin/mv $HOME/bla-news.tmp $HOME/news
+  '';
+
+  get_current_news = pkgs.writers.writeDashBin "get_current_news" ''
+    set -xefu
+    export TZ=UTC #workaround for jq parsing wrong timestamp
+    ${pkgs.coreutils}/bin/cat $HOME/news | ${pkgs.jq}/bin/jq -rs '
+      sort_by(.priority) |
+      map(select(
+        ((.to | fromdateiso8601) > now) and
+        (.from|fromdateiso8601) < now) |
+        .text
+      ) | .[]'
+  '';
+
+  newsshow = pkgs.writers.writeDashBin "newsshow" /* sh */ ''
+    cat << EOF
+    hello crabpeople!
+    $(${pkgs.ddate}/bin/ddate +'Today is %{%A, the %e of %B%}, %Y. %N%nCelebrate %H')
+    It is $(date --utc +%H) o clock UTC.
+    todays news:
+    $(get_current_news)
+    $(gc_news)
+    EOF
+  '';
+in
+{
+  systemd.services.newsshow = {
+    path = [
+      newsshow
+      send_to_radio
+      gc_news
+      get_current_news
+      pkgs.curl
+      pkgs.retry
+    ];
+    script = ''
+      set -efu
+      retry -t 5 -d 10 -- newsshow |
+        retry -t 5 -d 10 -- curl -fSsG http://tts.r/api/tts --data-urlencode 'text@-' |
+        retry -t 5 -d 10 -- send_to_radio
+    '';
+    startAt = "*:00:00";
+    serviceConfig = {
+      User = "radio-news";
+    };
+  };
+
+  services.nginx.virtualHosts."radio-news.r" = {
+    locations."/" = {
+      proxyPass = "http://localhost:7999";
+      proxyWebsockets = true;
+      extraConfig = ''
+        add_header 'Access-Control-Allow-Origin' '*';
+        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
+      '';
+    };
+  };
+  krebs.htgen.news = {
+    port = 7999;
+    user = {
+      name = "radio-news";
+    };
+    script = ''. ${pkgs.writers.writeDash "htgen-news" ''
+      set -xefu
+      case "''${Method:-GET} $Request_URI" in
+        "GET /")
+          printf 'HTTP/1.1 200 OK\r\n'
+          printf 'Connection: close\r\n'
+          printf '\r\n'
+          cat "$HOME"/news | jq -sc .
+          exit
+        ;;
+        "POST /")
+          payload=$(head -c "$req_content_length")
+          printf '%s' "$payload" | jq 'has("from") and has("to") and has("text")' >&2
+          printf '%s' "$payload" | jq -c '{ from: .from, to: .to, text: .text, priority: (.priority // 0)}' >> "$HOME"/news
+          printf 'HTTP/1.1 200 OK\r\n'
+          printf 'Connection: close\r\n'
+          printf '\r\n'
+          exit
+        ;;
+      esac
+    ''}'';
+  };
+
+  ## debug
+  # environment.systemPackages = [
+  #   weather_report
+  #   send_to_radio
+  #   newsshow
+  # ];
+}
diff --git a/lass/2configs/services/radio/radio.liq b/lass/2configs/services/radio/radio.liq
new file mode 100644
index 000000000..1366287a7
--- /dev/null
+++ b/lass/2configs/services/radio/radio.liq
@@ -0,0 +1,112 @@
+log.stdout.set(true)
+
+# use yt-dlp
+settings.protocol.youtube_dl.path.set("yt-dlp")
+
+## functions
+
+def stringify_attrs(attrs) =
+  let json.stringify out = (attrs : [(string * string)] as json.object)
+  out
+end
+
+def filter_music(req) =
+  filename = request.filename(req)
+  if string.match(pattern = '.*/\\.graveyard/.*', filename) then
+    false
+  else
+    true
+  end
+end
+
+def queue_contents(q) =
+  list.map(fun (req) -> request.uri(req), q)
+end
+## main
+
+env = environment()
+port = string.to_int(env["RADIO_PORT"], default = 8000)
+
+all_music = playlist(env["MUSIC"], check_next = filter_music)
+wishlist = request.queue()
+tracks = fallback(track_sensitive = true, [wishlist, all_music])
+tracks = blank.eat(tracks)
+
+last_metadata = ref([])
+def on_metadata(m) =
+  last_metadata := m
+  print("changing tracks")
+  out = process.read(env["HOOK_TRACK_CHANGE"], env = m, timeout = 5.0)
+  print(out)
+end
+tracks.on_metadata(on_metadata)
+
+# some nice effects
+music = crossfade(tracks)
+music = mksafe(music)
+music = normalize(music)
+
+news = request.queue()
+radio = smooth_add(normal = music, special = amplify(1.5, news))
+
+if string.length(env["ICECAST_HOST"]) > 0 then
+  output.icecast(host = env["ICECAST_HOST"], mount = '/music.ogg', password = 'hackme', %vorbis(quality = 1), music)
+  output.icecast(host = env["ICECAST_HOST"], mount = '/music.mp3', password = 'hackme', %mp3.vbr(), music)
+  output.icecast(host = env["ICECAST_HOST"], mount = '/music.opus', password = 'hackme', %opus(bitrate = 128), music)
+
+  output.icecast(host = env["ICECAST_HOST"], mount = '/radio.ogg', password = 'hackme', %vorbis(quality = 1), radio)
+  output.icecast(host = env["ICECAST_HOST"], mount = '/radio.mp3', password = 'hackme', %mp3.vbr(), radio)
+  output.icecast(host = env["ICECAST_HOST"], mount = '/radio.opus', password = 'hackme', %opus(bitrate = 128), radio)
+else
+  output(fallible = true, buffer(radio))
+end
+
+interactive.harbor(port = port)
+
+def current(~protocol, ~headers, ~data, uri) =
+  http.response(content_type = "application/json", data = stringify_attrs(
+    !last_metadata
+  ))
+end
+harbor.http.register("/current", port = port, current)
+
+def skip(~protocol, ~headers, ~data, uri) =
+  tracks.skip()
+  http.response(content_type = "application/json", data = stringify_attrs(
+    !last_metadata
+  ))
+end
+harbor.http.register("/skip", method = "POST", port = port, skip)
+
+def all_tracks(~protocol, ~headers, ~data, uri) =
+  http.response(content_type = "application/json", data = json.stringify(
+    all_music.remaining_files()
+  ))
+end
+harbor.http.register("/all_tracks", port = port, all_tracks)
+
+def wish_track(~protocol, ~headers, ~data, uri) =
+  # disallow process:
+  if string.match(pattern = '^process:', data) then
+    http.response(code = 400)
+  else
+    # TODO report errors back
+    wish = request.create(data)
+    wishlist.push(wish)
+    http.response(content_type = "application/json", data = "ok")
+  end
+end
+harbor.http.register("/wish", method = "POST", port = port, wish_track)
+
+def wish_tracklist(~protocol, ~headers, ~data, uri) =
+  http.response(content_type = "application/json", data = json.stringify(
+    queue_contents(wishlist.queue())
+  ))
+end
+harbor.http.register("/wish", port = port, wish_tracklist)
+
+def newsshow(~protocol, ~headers, ~data, uri) =
+  news.push(request.create("http://c.r/news.ogg"))
+  http.response(content_type = "application/json", data = "ok")
+end
+harbor.http.register("/newsshow", method = "POST", port = port, newsshow)
diff --git a/lass/2configs/services/radio/shell.nix b/lass/2configs/services/radio/shell.nix
new file mode 100644
index 000000000..9d00e3b06
--- /dev/null
+++ b/lass/2configs/services/radio/shell.nix
@@ -0,0 +1,7 @@
+{ pkgs ? import <nixpkgs> {} }:
+pkgs.mkShell {
+  buildInputs = [
+    pkgs.liquidsoap
+    pkgs.yt-dlp
+  ];
+}
diff --git a/lass/2configs/services/radio/weather.nix b/lass/2configs/services/radio/weather.nix
new file mode 100644
index 000000000..dca8a7843
--- /dev/null
+++ b/lass/2configs/services/radio/weather.nix
@@ -0,0 +1,60 @@
+{ config, lib, pkgs, ... }:
+let
+  weather_for_ips = pkgs.writers.writePython3Bin "weather_for_ips" {
+    libraries = [ pkgs.python3Packages.geoip2 ];
+    flakeIgnore = [ "E501" ];
+  } ./weather_for_ips.py;
+
+  weather_report = pkgs.writers.writeDashBin "weather_report" ''
+    set -efux
+    export PATH="${lib.makeBinPath [
+      pkgs.coreutils
+      pkgs.curl
+      pkgs.jq
+    ]}"
+    curl -fSsz /tmp/GeoLite2-City.mmdb -o /tmp/GeoLite2-City.mmdb http://c.r/GeoLite2-City.mmdb
+    MAXMIND_GEOIP_DB="/tmp/GeoLite2-City.mmdb"; export MAXMIND_GEOIP_DB
+    OPENWEATHER_API_KEY=$(cat "$CREDENTIALS_DIRECTORY/openweather_api"); export OPENWEATHER_API_KEY
+    (
+      curl -sS 'http://admin:hackme@localhost:8000/admin/listclients.json?mount=/radio.ogg'
+      curl -sS 'http://admin:hackme@localhost:8000/admin/listclients.json?mount=/radio.mp3'
+      curl -sS 'http://admin:hackme@localhost:8000/admin/listclients.json?mount=/radio.opus'
+    ) | jq -rs '
+      [
+        .[][].source|values|to_entries[].value |
+        (.listener//[]) [] |
+        (.useragent | capture("client-ip=(?<ip>[a-f0-9.:]+)")).ip // .ip
+      ] |
+        unique[] |
+        select(. != "127.0.0.1") |
+        select(. != "::1")
+    ' |
+      ${weather_for_ips}/bin/weather_for_ips
+  '';
+in {
+  systemd.services.weather = {
+    path = [
+      weather_report
+      pkgs.retry
+      pkgs.jq
+      pkgs.curl
+    ];
+    script = ''
+      set -xefu
+      retry -t 5 -d 10 -- weather_report |
+        jq \
+          --arg from "$(date -u +'%FT%TZ')" \
+          --arg to "$(date -u +'%FT%TZ' -d '+1 hours')" \
+          --slurp --raw-input --compact-output --ascii-output \
+          '{text: ., from: $from, to: $to, priority: 100}' |
+        retry -t 5 -d 10 -- curl -fSs -d@- http://radio-news.r
+    '';
+    startAt = "*:58:00";
+    serviceConfig = {
+      User = "radio-news";
+      LoadCredential = [
+        "openweather_api:${toString <secrets>}/openweather_api_key"
+      ];
+    };
+  };
+}
diff --git a/lass/2configs/services/radio/weather_for_ips.py b/lass/2configs/services/radio/weather_for_ips.py
new file mode 100644
index 000000000..62206a985
--- /dev/null
+++ b/lass/2configs/services/radio/weather_for_ips.py
@@ -0,0 +1,48 @@
+import geoip2.database
+import fileinput
+import json
+import requests
+import os
+import random
+
+
+geoip = geoip2.database.Reader(os.environ['MAXMIND_GEOIP_DB'])
+seen = {}
+output = []
+for ip in fileinput.input():
+    if "80.147.140.51" in ip:
+        output.append(
+            'Weather report for c-base, space.'
+            'It is empty space outside '
+            'with a temperature of -270 degrees, '
+            'a lightspeed of 299792 kilometers per second '
+            'and a humidity of Not a Number percent. '
+            f'The probability of reincarnation is {random.randrange(0, 100)} percent.'
+        )
+    else:
+        try:
+            location = geoip.city(ip.strip())
+            if location.city.geoname_id not in seen:
+                seen[location.city.geoname_id] = True
+                weather_api_key = os.environ['OPENWEATHER_API_KEY']
+                url = (
+                    f'https://api.openweathermap.org/data/2.5/onecall'
+                    f'?lat={location.location.latitude}'
+                    f'&lon={location.location.longitude}'
+                    f'&appid={weather_api_key}'
+                    f'&units=metric'
+                )
+                resp = requests.get(url)
+                weather = json.loads(resp.text)
+                output.append(
+                    f'Weather report for {location.city.name}, {location.country.name}. '
+                    f'It is {weather["current"]["weather"][0]["description"]} outside '
+                    f'with a temperature of {weather["current"]["temp"]:.1f} degrees, '
+                    f'a wind speed of {weather["current"]["wind_speed"]:.1f} meters per second '
+                    f'and a humidity of {weather["current"]["humidity"]} percent. '
+                    f'The probability of precipitation is {weather["hourly"][0]["pop"] * 100:.0f} percent. '
+                )
+        except:  # noqa E722
+            pass
+
+print('\n'.join(output))
author	lassulus <git@lassul.us>	2023-02-21 10:10:53 +0100
committer	lassulus <git@lassul.us>	2023-02-21 10:10:53 +0100
commit	5bab00f73d27a96f6ce319040b69e4d83a81e52a (patch)
tree	5fe51f9ba61a3c5192ef050435875f9366f98a0b /lass/2configs/services/radio
parent	ad1b92ed9a85c11d522305defc77ff4c6929acad (diff)