Merge remote-tracking branch 'prism/master' into head

1 files changed, 328 insertions, 0 deletions

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" = {};
+}