stockholm/lass/2configs/services/radio/default.nix
2023-09-04 12:36:48 +02:00

349 lines
11 KiB
Nix

{ 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 = {
"${name}" = rec {
inherit name;
createHome = true;
group = name;
uid = pkgs.stockholm.lib.genid_uint31 name;
description = "radio manager";
home = "/home/${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
];
systemd.services.radio_watcher = {
wantedBy = [ "multi-user.target" ];
after = [ "radio.service" ];
serviceConfig = {
ExecStart = pkgs.writers.writeDash "radio_watcher" ''
set -efux
while :; do
${pkgs.curl}/bin/curl -Ss http://localhost:8000/radio.ogg -o /dev/null
${pkgs.systemd}/bin/systemctl restart radio
sleep 60
done
'';
Restart = "on-failure";
};
};
services.liquidsoap.streams.radio = ./radio.liq;
systemd.services.radio = {
environment = {
RADIO_PORT = "8002";
HOOK_TRACK_CHANGE = pkgs.writers.writeDash "on_change" ''
set -xefu
LIMIT=1000 #how many tracks to keep in the history
HISTORY_FILE=/var/lib/radio/recent
listeners=$(${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
pkgs.bubblewrap
];
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-${version}.tar.gz";
sha256 = "sha256-4FDokoA9zBDYj8RAO/kuTHaZ6jZYBLSJZiX/IYFaCW8=";
};
buildInputs = old.buildInputs ++ [ pkgs.pkg-config ];
});
};
services.icecast = {
enable = true;
hostname = "radio.lassul.us";
admin.password = "hackme";
extraConf = ''
<authentication>
<source-password>hackme</source-password>
<admin-user>admin</admin-user>
<admin-password>hackme</admin-password>
</authentication>
<logging>
<accesslog>-</accesslog>
<errorlog>-</errorlog>
<loglevel>3</loglevel>
</logging>
'';
};
krebs.iptables = {
tables = {
filter.INPUT.rules = [
{ predicate = "-p tcp --dport 8000"; target = "ACCEPT"; }
{ predicate = "-i retiolum -p tcp --dport 8001"; target = "ACCEPT"; }
{ predicate = "-i retiolum -p tcp --dport 8002"; target = "ACCEPT"; }
];
};
};
# allow reaktor2 to modify files
systemd.services."reaktor2-the_playlist".serviceConfig.DynamicUser = lib.mkForce false;
systemd.services."reaktor2-the_playlist".serviceConfig.Group = lib.mkForce "radio";
krebs.reaktor2.the_playlist = {
hostname = "irc.hackint.org";
port = "6697";
useTLS = true;
nick = "the_playlist";
username = "radio";
API.listen = "unix:/home/radio/reaktor.sock";
plugins = [
{
plugin = "register";
config = {
channels = [
"#the_playlist"
"#krebs"
];
};
}
{
plugin = "system";
config = {
workdir = config.krebs.reaktor2.the_playlist.stateDir;
hooks.PRIVMSG = [
{
activate = "match";
pattern = "^(?:.*\\s)?\\s*the_playlist:\\s*([0-9A-Za-z._][0-9A-Za-z._-]*)(?:\\s+(.*\\S))?\\s*$";
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" = {};
}