.gitignore

@@ -1,6 +1,4 @@
 bin/*
 !bin/.keep
 .vscode
-*.log
+*.pug.go
-*_templ.go
-/test

Makefile

@@ -1,63 +1,36 @@
-TARGET := dwelling-radio
+TARGET=dwelling-radio
 
-SYSDDIR_ := ${shell pkg-config systemd --variable=systemdsystemunitdir}
+SYSDDIR_=${shell pkg-config systemd --variable=systemdsystemunitdir}
-SYSDDIR := ${SYSDDIR_:/%=%}
+SYSDDIR=${SYSDDIR_:/%=%}
+DESTDIR=/
 
-DESTDIR ?=
+LDFLAGS=-ldflags "-s -w -X main.version=23.8.0" -tags osusergo,netgo
-PREFIX ?= /usr/local
 
-VERSION ?= 24.38.0
+all: ${TARGET}
 
-GOFLAGS := -buildmode=pie -modcacherw -mod=readonly -trimpath
+.PHONY: ${TARGET} install uninstall
-LDFLAGS := -ldflags "-linkmode=external -extldflags \"${LDFLAGS}\" -s -w -X main.version=${VERSION}" -tags osusergo,netgo
 
-.PHONY: run install uninstall clean
+${TARGET}:
+	go generate web/web.go
+	go build -o bin/$@ ${LDFLAGS} cmd/$@/main.go
 
-${TARGET}: web/*_templ.go
+install-jade:
-	go build -o bin/$@ ${LDFLAGS} ${GOFLAGS} cmd/$@/main.go
+	go install github.com/Joker/jade/cmd/jade@latest
-
-web/*_templ.go: web/*.templ
-ifeq (,$(wildcard $(shell go env GOPATH)/bin/templ))
-	go install github.com/a-h/templ/cmd/templ@latest
-endif
-	$(shell go env GOPATH)/bin/templ generate
-
-run: | ${TARGET}
-	bin/dwelling-radio -listen 127.0.0.1:18322 \
-		-work-dir test \
-		-playlist test
 
 install:
-	install -Dm 0755 bin/${TARGET} ${DESTDIR}${PREFIX}/bin/${TARGET}
+	install -Dm 0755 bin/${TARGET} ${DESTDIR}usr/bin/${TARGET}
-	install -Dm 0755 tools/radioctl ${DESTDIR}${PREFIX}/bin/${TARGET}ctl
+	install -Dm 0755 tools/radioctl ${DESTDIR}usr/bin/${TARGET}ctl
+	install -Dm 0644 configs/config.yaml ${DESTDIR}etc/dwelling/radio.yaml
+	install -Dm 0644 configs/radio.liq ${DESTDIR}etc/dwelling/radio.liq
+	install -Dm 0644 configs/radio.vars.liq ${DESTDIR}etc/dwelling/radio.vars.liq
+	install -Dm 0644 LICENSE ${DESTDIR}usr/share/licenses/${TARGET}/LICENSE
+	install -Dm 0644 configs/logrotate ${DESTDIR}etc/logrotate.d/${TARGET}
 
-	install -Dm 0755 tools/radio-fetch ${DESTDIR}${PREFIX}/bin/${TARGET}-fetch
+	install -Dm 0644 init/systemd.service ${DESTDIR}${SYSDDIR}/${TARGET}.service
-
-#	install -Dm 0644 configs/radio.liq ${DESTDIR}/etc/dwelling/radio.liq
-#	install -Dm 0644 configs/radio.vars.liq ${DESTDIR}/etc/dwelling/radio.vars.liq
-	install -Dm 0644 configs/ezstream.xml ${DESTDIR}/etc/dwelling/ezstream.xml
-	install -Dm 0644 configs/logrotate ${DESTDIR}/etc/logrotate.d/${TARGET}
-	install -Dm 0644 configs/override.icecast.service ${DESTDIR}/etc/systemd/system/icecast.service.override.d/override.conf
-
-	install -Dm 0644 init/radio.service ${DESTDIR}/${SYSDDIR}/${TARGET}.service
-#	install -Dm 0644 init/liquidsoap.service ${DESTDIR}/${SYSDDIR}/${TARGET}-liquidsoap.service
-	install -Dm 0644 init/ezstream.service ${DESTDIR}/${SYSDDIR}/${TARGET}-ezstream.service
 
 uninstall:
-	rm ${DESTDIR}${PREFIX}/bin/${TARGET}
+	rm ${DESTDIR}usr/bin/${TARGET}
-	rm ${DESTDIR}${PREFIX}/bin/${TARGET}ctl
+	rm ${DESTDIR}usr/share/licenses/${TARGET}/LICENSE
-
+	rm ${DESTDIR}etc/logrotate.d/${TARGET}
-	rm ${DESTDIR}${PREFIX}/bin/${TARGET}-fetch
-
-#	rm ${DESTDIR}/etc/dwelling/radio.liq
-	rm ${DESTDIR}/etc/dwelling/ezstream.xml
-	rm ${DESTDIR}/etc/logrotate.d/${TARGET}
-	rm ${DESTDIR}/etc/systemd/system/icecast.service.override.d/override.conf
 
 	rm ${DESTDIR}${SYSDDIR}/${TARGET}.service
-#	rm ${DESTDIR}${SYSDDIR}/${TARGET}-liquidsoap.service
-	rm ${DESTDIR}${SYSDDIR}/${TARGET}-ezstream.service
-
-clean:
-	rm -f web/*.jade.go
-	go clean

build/archlinux/PKGBUILD

@@ -1,30 +1,33 @@
 # Maintainer: Alexander "Arav" Andreev <me@arav.su>
 pkgname=dwelling-radio
-pkgver=24.38.0
+pkgver=23.8.0
 pkgrel=1
 pkgdesc="Arav's dwelling / Radio"
 arch=('i686' 'x86_64' 'arm' 'armv6h' 'armv7h' 'aarch64')
 url="https://git.arav.su/Arav/dwelling-radio"
 license=('MIT')
-makedepends=('go>=1.17')
+groups=()
-optdepends=(
+depends=()
-    'tree: to make a filelist html file'
+makedepends=('go')
-    'ffmpeg: to convert media to ogg and get duration of songs')
+provides=('dwelling-radio')
-backup=('etc/dwelling/ezstream.xml')
+conflicts=('dwelling-radio')
-source=("${pkgver}.tar.gz::https://git.arav.su/Arav/dwelling-radio/archive/v${pkgver}.tar.gz")
+replaces=()
+backup=('etc/dwelling/radio.yaml' 'etc/dwelling/radio.vars.liq')
+options=()
+install=
+source=('https://git.arav.su/Arav/dwelling-radio/archive/23.8.0.tar.gz')
+noextract=()
 md5sums=('SKIP')
 
 build() {
     cd "$srcdir/$pkgname"
-    export GOPATH="$srcdir"/gopath
+    if [ ! -f "$(go env GOPATH)/bin/jade" ]; then
-    export CGO_CPPFLAGS="${CPPFLAGS}"
+        make DESTDIR="$pkgdir/" install-jade
-    export CGO_CFLAGS="${CFLAGS}"
+    fi
-    export CGO_CXXFLAGS="${CXXFLAGS}"
+    make DESTDIR="$pkgdir/"
-    export CGO_LDFLAGS="${LDFLAGS}"
-    make VERSION=$pkgver DESTDIR="$pkgdir" PREFIX="/usr"
 }
 
 package() {
     cd "$srcdir/$pkgname"
-    make DESTDIR="$pkgdir" PREFIX="/usr" install
+    make DESTDIR="$pkgdir/" install
 }

cmd/dwelling-radio/main.go

@@ -1,159 +1,83 @@
 package main
 
 import (
-	ihttp "dwelling-radio/internal/http"
+	"dwelling-radio/internal/configuration"
+	"dwelling-radio/internal/http"
 	"dwelling-radio/internal/radio"
-	sqlite_stats "dwelling-radio/internal/statistics/db/sqlite"
+	"errors"
-	"dwelling-radio/pkg/utils"
-	"dwelling-radio/web"
-	"dwelling-radio/web/locales"
 	"flag"
 	"fmt"
 	"log"
-	"net/http"
 	"os"
 	"os/signal"
-	"path"
 	"syscall"
-
-	"git.arav.su/Arav/httpr"
-	"github.com/invopop/ctxi18n"
-)
-
-var (
-	listenAddress = flag.String("listen", "/var/run/dwelling-radio/sock", "listen address (ip:port|unix_path)")
-	workDirPath   = flag.String("work-dir", "/mnt/data/appdata/radio", "path to a working directory")
-	playlistName  = flag.String("playlist", "all-rand", "a playlist name")
-	songListLen   = flag.Int64("list-length", 10, "number of songs to show in last N songs table")
-
-	showVersion = flag.Bool("v", false, "show version")
 )
 
 var version string
 
+var configPath *string = flag.String("conf", "config.yaml", "path to configuration file")
+var noLiquidsoap *bool = flag.Bool("no-liquidsoap", false, "don't run liquidsoap")
+var showVersion *bool = flag.Bool("v", false, "show version")
+
 func main() {
 	flag.Parse()
-	log.SetFlags(log.Lshortfile)
 
 	if *showVersion {
-		fmt.Println("dwelling-radio ver.", version, "\nCopyright (c) 2022-2024 Alexander \"Arav\" Andreev <me@arav.su>")
+		fmt.Println("dwelling-radio ver.", version, "\nCopyright (c) 2022,2023 Alexander \"Arav\" Andreev <me@arav.su>")
 		return
 	}
 
-	stats, err := sqlite_stats.New(path.Join(*workDirPath, "statistics.db3"))
+	config, err := configuration.Load(*configPath)
-	if err != nil {
-		log.Fatalln("Statistics:", err)
-	}
-	defer stats.Close()
-
-	currentSong := radio.Song{}
-	lstnrs := radio.NewListenerCounter()
-
-	plylst, err := radio.NewPlaylist(path.Join(*workDirPath, "playlists", *playlistName), true)
 	if err != nil {
 		log.Fatalln(err)
 	}
 
-	if err := ctxi18n.LoadWithDefault(locales.Content, "en"); err != nil {
+	if typ, addr := config.SplitNetworkAddress(); typ == "unix" {
-		log.Fatalln(err)
+		defer os.Remove(addr)
 	}
 
-	r := httpr.New()
+	playlistWatcher := radio.NewPlaylistLogWatcher()
-
+	if err := playlistWatcher.Watch(config.Icecast.Playlist, config.ListLastNSongs); err != nil {
-	r.Handler(http.MethodGet, "/", func(w http.ResponseWriter, r *http.Request) {
-		lst, err := stats.LastNSongs(*songListLen)
-		if err != nil {
-			log.Printf("Failed to fetch last N songs: %s\n", err)
-		}
-
-		lstnrs.RLock()
-		defer lstnrs.RUnlock()
-		web.Index(version, &currentSong, lst, *songListLen, lstnrs, r).Render(r.Context(), w)
-	})
-
-	r.Handler(http.MethodGet, "/filelist", func(w http.ResponseWriter, r *http.Request) {
-		data, err := os.ReadFile(path.Join(*workDirPath, "filelist.html"))
-		if err != nil {
-			http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
-			return
-		}
-
-		w.Header().Add("Content-Type", "text/html")
-		w.Header().Add("Link", "<"+utils.Site(r.Host)+"/filelist>; rel=\"canonical\"")
-		w.Write(data)
-	})
-
-	r.Handler(http.MethodGet, "/playlist", web.ServeAsset("playlist.m3u", "", "radio.arav.su.m3u"))
-
-	r.Handler(http.MethodGet, "/robots.txt", web.ServeAsset("robots.txt", "text/plain", ""))
-	r.Handler(http.MethodGet, "/sitemap.xml", web.ServeAsset("sitemap.xml", "application/xml", ""))
-	r.Handler(http.MethodGet, "/favicon.svg", web.ServeAsset("favicon.svg", "image/svg", ""))
-
-	r.ServeStatic("/assets/*filepath", web.Assets())
-
-	djh := ihttp.NewDJHandlers(lstnrs, plylst, stats, &currentSong, *songListLen, path.Join(*workDirPath, "fallback.ogg"))
-
-	s := r.Sub("/api")
-
-	s.Handler(http.MethodPost, "/listener/icecast", djh.ListenersUpdateIcecast)
-	s.Handler(http.MethodGet, "/playlist", djh.PlaylistNext)
-	s.Handler(http.MethodGet, "/status", djh.Status)
-
-	srv := ihttp.NewHttpServer(I18nMiddleware(r))
-
-	if err := srv.Start(*listenAddress); err != nil {
 		log.Fatalln(err)
 	}
+	defer playlistWatcher.Close()
 
-	defer func() {
+	hand := http.NewHandlers(config)
-		if err := srv.Stop(); err != nil {
+	srv := http.NewHttpServer()
-			log.Fatalln(err)
+
+	srv.ServeStatic("/assets/*filepath", hand.AssetsFS())
+	srv.GET("/", hand.Index)
+	srv.GET("/status", hand.Status)
+	srv.GET("/lastsong", hand.LastSong)
+	srv.GET("/playlist", hand.Playlist)
+	srv.GET("/filelist", hand.Filelist)
+	srv.GET("/robots.txt", hand.RobotsTxt)
+
+	if !*noLiquidsoap {
+		liquid, err := radio.NewLiquidsoap(config.Liquidsoap.ExecPath, config.Liquidsoap.ScriptPath)
+		if err != nil {
+			log.Fatalln("liquidsoap:", err)
 		}
-	}()
 
-	sysSignal := make(chan os.Signal, 1)
+		defer func() {
-	signal.Notify(sysSignal, os.Interrupt, syscall.SIGINT, syscall.SIGTERM, syscall.SIGABRT, syscall.SIGSEGV, syscall.SIGHUP)
+			if err := liquid.Stop(); err != nil {
-
+				if !errors.Is(err, radio.ErrLiquidsoapNotRunning) {
-	for {
+					log.Println(err)
-		switch <-sysSignal {
-		case os.Interrupt, syscall.SIGINT, syscall.SIGTERM, syscall.SIGABRT, syscall.SIGSEGV:
-			if currentSong.Artist != "" {
-				lstnrs.Lock()
-				defer lstnrs.Unlock()
-				currentSong.Listeners, currentSong.PeakListeners = lstnrs.Reset()
-				if err := stats.Add(&currentSong); err != nil {
-					log.Println("failed to save a current song during a shutdown:", err)
 				}
 			}
-			return
+		}()
-		case syscall.SIGHUP:
+	}
-			plylst.Lock()
+
-			defer plylst.Unlock()
+	if err := srv.Start(config.SplitNetworkAddress()); err != nil {
-			if err := plylst.Reload(); err != nil {
+		log.Fatalln(err)
-				log.Println(err)
+	}
-			}
+
-		}
+	doneSignal := make(chan os.Signal, 1)
+	signal.Notify(doneSignal, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
+
+	<-doneSignal
+
+	if err := srv.Stop(); err != nil {
+		log.Fatalln(err)
 	}
 }
-
-func I18nMiddleware(next http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		lang := "en"
-
-		if lq := r.URL.Query().Get("lang"); lq != "" {
-			lc := http.Cookie{Name: "lang", Value: lq, HttpOnly: false, MaxAge: 0}
-			http.SetCookie(w, &lc)
-			lang = lq
-		} else if l, err := r.Cookie("lang"); err == nil {
-			lang = l.Value
-		} else if al := r.Header.Get("Accept-Language"); al != "" {
-			lang = r.Header.Get("Accept-Language")
-		}
-
-		ctx, err := ctxi18n.WithLocale(r.Context(), lang)
-		if err != nil {
-			log.Println("i18nmw:", err)
-		}
-		next.ServeHTTP(w, r.WithContext(ctx))
-	})
-}

configs/config.yaml

@@ -0,0 +1,16 @@
+# Sets network type (could be tcp{,4,6}, unix)
+# and address:port or /path/to/unix.sock to
+# listen on.
+listen_on: "unix /var/run/dwelling-radio/sock"
+icecast:
+  # URL to Icecast's status-json.xsl
+  url: "http://radio.arav.home.arpa/status-json.xsl"
+  playlist_path: "/var/log/icecast/playlist.log"
+filelist_path: "/srv/radio/filelist.html"
+liquidsoap:
+  executable_path: "/opt/opam/4.14.0/bin/liquidsoap"
+  script_path: "/etc/dwelling/radio.liq"
+# How much songs to list on a page
+list_last_n_songs: 10
+log:
+  error: "/var/log/dwelling-radio/error.log"

configs/ezstream.xml

@@ -1,46 +0,0 @@
-<ezstream>
-  <servers>
-    <server>
-      <name>default</name>
-      <protocol>HTTP</protocol>
-      <hostname>127.0.0.1</hostname>
-      <port>8000</port>
-      <password>SOURCEPWD</password>
-    </server>
-  </servers>
-  <streams>
-    <stream>
-      <name>default</name>
-      <mountpoint>/stream.ogg</mountpoint>
-      <public>Yes</public>
-      <intake>dwelling-radio</intake>
-      <server>default</server>
-      <format>Ogg</format>
-      <stream_name>Arav's dwelling / Radio</stream_name>
-      <stream_url>https://radio.arav.su</stream_url>
-      <stream_genre>Various</stream_genre>
-      <stream_description>Broadcasting from under my desk.</stream_description>
-      <stream_bitrate>128</stream_bitrate>
-      <stream_samplerate>44100</stream_samplerate>
-      <stream_channels>2</stream_channels>
-    </stream>
-  </streams>
-  <intakes>
-    <intake>
-      <name>default</name>
-      <type>playlist</type>
-      <filename>/mnt/data/appdata/radio/playlists/all-rand</filename>
-    </intake>
-    <intake>
-      <name>dwelling-radio</name>
-      <type>program</type>
-      <filename>/usr/bin/dwelling-radio-fetch</filename>
-    </intake>
-  </intakes>
-  <metadata>
-    <format_str>@a@ - @t@</format_str>
-    <refresh_interval>-1</refresh_interval>
-    <normalize_strings>No</normalize_strings>
-    <no_updates>No</no_updates>
-  </metadata>
-</ezstream>

configs/icecast.xml

@@ -1,82 +0,0 @@
-<icecast>
-	<hostname>radio.arav.su</hostname>
-	<location>Somewhere in Russia</location>
-	<admin>admin@arav.su</admin>
-
-	<limits>
-		<clients>128</clients>
-		<sources>2</sources>
-		<queue-size>524288</queue-size>
-		<client-timeout>30</client-timeout>
-		<header-timeout>15</header-timeout>
-		<source-timeout>10</source-timeout>
-		<burst-on-connect>1</burst-on-connect>
-		<burst-size>65535</burst-size>
-	</limits>
-
-	<authentication>
-		<source-password>SOURCEPWD</source-password>
-		<relay-password>RELAYPWD</relay-password>
-		<admin-user>admin</admin-user>
-		<admin-password>ADMINPWD</admin-password>
-	</authentication>
-
-	<directory>
-		<yp-url-timeout>15</yp-url-timeout>
-		<yp-url>http://dir.xiph.org/cgi-bin/yp-cgi</yp-url>
-	</directory>
-
-	<listen-socket>
-		<port>8000</port>
-		<bind-address>127.0.0.1</bind-address>
-	</listen-socket>
-
-	<http-headers>
-		<header name="Access-Control-Allow-Origin" value="*" />
-	</http-headers>
-
-
-	<mount type="normal">
-		<mount-name>/stream.ogg</mount-name>
-		<charset>UTF8</charset>
-		<public>1</public>
-		<authentication type="url">
-			<option name="listener_add" value="https://radio.arav.su/api/listener/icecast"/>
-			<option name="listener_remove" value="https://radio.arav.su/api/listener/icecast"/>
-			<option name="auth_header" value="Icecast-Auth-User: 1"/>
-		</authentication>
-	</mount>
-
-	<mount type="normal">
-		<mount-name>/test.ogg</mount-name>
-		<charset>UTF8</charset>
-		<public>0</public>
-	</mount>
-
-
-	<paths>
-		<basedir>/usr/share/icecast</basedir>
-		<logdir>/var/log/icecast</logdir>
-		<webroot>/usr/share/icecast/web</webroot>
-		<adminroot>/usr/share/icecast/admin</adminroot>
-		<alias source="/" destination="/status.xsl"/>
-		<x-forwarded-for>192.168.144.2</x-forwarded-for>
-	</paths>
-
-	<logging>
-		<accesslog>access.log</accesslog>
-		<errorlog>error.log</errorlog> 
-		<playlistlog>playlist.log</playlistlog> 
-		<loglevel>1</loglevel> <!-- 4 Debug, 3 Info, 2 Warn, 1 Error -->
-		<logsize>10000</logsize> <!-- Max size of a logfile -->
-		<logarchive>0</logarchive>
-	</logging>
-
-	<security>
-		<chroot>0</chroot>
-		<changeowner>
-			<user>icecast</user>
-			<group>icecast</group>
-		</changeowner>
-	</security>
-</icecast>

configs/logrotate

@@ -1,6 +1,5 @@
 /var/log/dwelling-radio/*log {
     nocreate
-    copytruncate
     missingok
     notifempty
     size 10M
@@ -9,4 +8,8 @@
     compressext .zst
     compressoptions -T0 --long -15
     uncompresscmd /usr/bin/unzstd
+    sharedscripts
+    postrotate
+        /bin/pkill -HUP dwelling-radio
+    endscript
 }

configs/nginx.conf

@@ -1,11 +1,10 @@
 server {
-	listen  443  ssl;
+	listen  443  ssl  http2;
-	listen  8091; # Tor I2P
+#	listen  8090; # Tor
+	listen  127.0.0.1:8111; # I2P
 	listen  [300:a98d:d6d0:8a08::e]:80; # Yggdrasil
 
-	http2 on;
+	server_name  radio.arav.su radio.arav.i2p mkgnmhmzqm7kyzv7jnzzafvgm7xlmlfvzhgorpapd5or2arnhuktqd.onion;
-
-	server_name  radio.arav.su radio.arav.i2p plkybcgxt4cdanot75cy3pbnqlbqcsrib2fmrpsnug4bqphqvfda.b32.i2p mkgnmhmzqm7kyzv7jnzzafvgm7xlmlfvzhgorpapd5or2arnhuktqd.onion;
 
 	access_log  /var/log/nginx/dwelling/radio.log  main  if=$nolog;
 
@@ -17,7 +16,7 @@ server {
 	add_header  X-Content-Type-Options     "nosniff";
 	add_header  X-XSS-Protection           "1; mode=block";
 	add_header  Strict-Transport-Security  "max-age=31536000; includeSubDomains; preload";
-	add_header  Onion-Location             "http://wsmkgnmhmzqm7kyzv7jnzzafvgm7xlmlfvzhgorpapd5or2arnhuktqd.onion$request_uri";
+#	add_header  Onion-Location             "http://mkgnmhmzqm7kyzv7jnzzafvgm7xlmlfvzhgorpapd5or2arnhuktqd.onion$request_uri";
 
 
 	location / {
@@ -29,7 +28,6 @@ server {
 
 	location /live/ {
 		proxy_pass        http://127.0.0.1:8000/;
-		proxy_bind        $remote_addr transparent;
 		proxy_buffering   off;
 		proxy_set_header  X-Real-IP  $remote_addr;
 	}
@@ -37,22 +35,10 @@ server {
 	location /live/admin/ {
 		deny  all;
 	}
-
-	location /api/listener/icecast {
-		allow 127.0.0.1;
-		allow 192.168.144.2;
-		deny all;
-	}
-
-	location /api/playlist {
-		allow 127.0.0.1;
-		allow 192.168.144.2;
-		deny all;
-	}
 }
 
 server {
-	listen  192.168.144.2:8000;
+	listen  8000;
 
 	server_name  radio.arav.su;
 
@@ -62,14 +48,12 @@ server {
 	add_header X-Frame-Options         "DENY";
 	add_header X-Content-Type-Options  "nosniff";
 	add_header X-XSS-Protection        "1; mode=block";
-	add_header Onion-Location          "http://wsmkgnmhmzqm7kyzv7jnzzafvgm7xlmlfvzhgorpapd5or2arnhuktqd.onion/live$request_uri";
+#	add_header Onion-Location          "http://mkgnmhmzqm7kyzv7jnzzafvgm7xlmlfvzhgorpapd5or2arnhuktqd.onion/live$request_uri";
 
 
 	location / {
-		proxy_pass        http://127.0.0.1:8000/;
+		proxy_pass       http://127.0.0.1:8000/;
-		proxy_bind        $remote_addr transparent;
+		proxy_buffering  off;
-		proxy_buffering   off;
-		proxy_set_header  X-Real-IP  $remote_addr;
 	}
 
 	location /admin/ {

configs/override.icecast.service

@@ -1,3 +0,0 @@
-[Unit]
-Requires=dwelling-radio.service
-After=dwelling-radio.service

configs/radio.liq

@@ -10,8 +10,8 @@ end
 def xfade(a, b)
     add(normalize = false,
         [ sequence([ blank(duration = 2.),
-                     fade.in(duration = 2., b)]),
+                     fade.initial(duration = 2., b)]),
-          fade.out(duration = 2., a)])
+          fade.final(duration = 2., a)])
 end
 
 def fallback_alter_title(m) =
@@ -19,14 +19,12 @@ def fallback_alter_title(m) =
      ("title", string.concat(["No stream. (Playing ", m["artist"], " - ", m["title"], ")"]))]
 end
 
-settings.server.telnet := false
+settings.server.telnet.set(false)
-settings.harbor.bind_addrs := ["0.0.0.0"]
+settings.harbor.bind_addrs.set(["0.0.0.0"])
-settings.log.level := 1
+settings.log.level.set(2)
-settings.log.file := true
+settings.log.file.set(true)
-settings.log.file.path := log_file_path
+settings.log.file.path.set(log_file_path)
-settings.log.stdout := false
+settings.log.stdout.set(false)
-
-enable_replaygain_metadata()
 
 fallback_song = mksafe(single(fullpath("fallback.ogg")))
 fallback_song = metadata.map(fallback_alter_title, fallback_song)
@@ -36,18 +34,17 @@ live_show = input.harbor("adr-live-show", port = harbor_port, password = harbor_
 live_show = metadata.map(fun (_) -> [("artist", radio_name), ("title", "Live Show")], live_show)
 
 playlist_random = playlist(fullpath("playlists/all-rand"),
-                           prefix = string.concat(["replaygain:", fullpath("music/")]),
+                           prefix = fullpath("music/"),
                            mode = "normal", reload_mode = "watch")
 
 music = audio_to_stereo(playlist_random)
-music = replaygain(music)
 
 radio = smooth_add(p = 0.18, normal = music, special = live_mixin)
 radio = fallback(track_sensitive = false,
                  transitions = [xfade, xfade, xfade],
                  [ blank.strip(max_blank=15., live_show),
                    blank.strip(max_blank=90., radio), fallback_song])
-radio = normalize(target = -12., threshold = -40., lufs = true, radio)
+radio = normalize(radio)
 
 output.icecast(%vorbis.cbr(bitrate = 128, samplerate = 44100, channels = 2),
                host = icecast_host, port = icecast_port,

configs/radio.vars.liq

@@ -6,13 +6,13 @@ radio_url = "https://radio.arav.su"
 radio_name = "Arav's dwelling / Radio"
 radio_desc = "Broadcasting from under my desk."
 
-radio_dir = "/mnt/data/appdata/radio/"
+radio_dir = "/srv/radio/"
 
 harbor_port = 8002
 harbor_password = ""
 
 icecast_host = "127.0.0.1"
-icecast_port = 8001
+icecast_port = 8000
 icecast_password = ""
 icecast_mount = "stream.ogg"
 icecast_genre = "Various"

go.mod

@@ -1,21 +1,9 @@
 module dwelling-radio
 
-go 1.21
+go 1.20
-
-toolchain go1.22.3
-
-require github.com/pkg/errors v0.9.1
-
-require git.arav.su/Arav/httpr v0.3.2
-
-require github.com/a-h/templ v0.2.778
 
 require (
-	github.com/invopop/ctxi18n v0.8.1
+	github.com/julienschmidt/httprouter v1.3.0
-	github.com/mattn/go-sqlite3 v1.14.23
+	github.com/pkg/errors v0.9.1
-)
+	gopkg.in/yaml.v3 v3.0.1
-
-require (
-	github.com/invopop/yaml v0.3.1 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,23 +1,7 @@
-git.arav.su/Arav/httpr v0.3.2 h1:a+ifu+9+FnQe6p/Kd4kgTDKAFN6zBOJjBTMjbAuHxVk=
+github.com/julienschmidt/httprouter v1.3.0 h1:U0609e9tgbseu3rBINet9P48AI/D3oJs4dN7jwJOQ1U=
-git.arav.su/Arav/httpr v0.3.2/go.mod h1:z0SVYwe5dBReeVuFU9QH2PmBxICJwchxqY5OfZbeVzU=
+github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
-github.com/a-h/templ v0.2.778 h1:VzhOuvWECrwOec4790lcLlZpP4Iptt5Q4K9aFxQmtaM=
-github.com/a-h/templ v0.2.778/go.mod h1:lq48JXoUvuQrU0VThrK31yFwdRjTCnIE5bcPCM9IP1w=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/invopop/ctxi18n v0.8.1 h1:nfy5Mk6UfvLbGRBwpTi4T1g95+rmRo8bMllUmpCvVwI=
-github.com/invopop/ctxi18n v0.8.1/go.mod h1:1Osw+JGYA+anHt0Z4reF36r5FtGHYjGQ+m1X7keIhPc=
-github.com/invopop/yaml v0.3.1 h1:f0+ZpmhfBSS4MhG+4HYseMdJhoeeopbSKbq5Rpeelso=
-github.com/invopop/yaml v0.3.1/go.mod h1:PMOp3nn4/12yEZUFfmOuNHJsZToEEOwoWsT+D81KkeA=
-github.com/mattn/go-sqlite3 v1.14.23 h1:gbShiuAP1W5j9UOksQ06aiiqPMxYecovVGwmTxWtuw0=
-github.com/mattn/go-sqlite3 v1.14.23/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
-github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

init/ezstream.service

@@ -1,55 +0,0 @@
-[Unit]
-Description=Arav's dwelling / Radio / EZStream
-Requires=dwelling-radio.service icecast.service
-After=network-online.target dwelling-radio.service icecast.service
-
-[Service]
-Type=simple
-Restart=on-failure
-User=dwelling-radio
-DynamicUser=yes
-ExecStart=/usr/bin/ezstream -c /etc/dwelling/ezstream.xml
-ExecStop=/bin/kill -INT $MAINPID
-ExecReload=/bin/kill -HUP $MAINPID
-
-ReadOnlyPaths=/
-
-LogsDirectory=dwelling-radio
-
-AmbientCapabilities=
-CapabilityBoundingSet=
-
-LockPersonality=true
-MemoryDenyWriteExecute=true
-NoNewPrivileges=true
-PrivateDevices=true
-PrivateTmp=true
-PrivateUsers=true
-ProcSubset=pid
-ProtectClock=true
-ProtectControlGroups=true
-ProtectHome=true
-ProtectHostname=true
-ProtectKernelLogs=true
-ProtectKernelModules=true
-ProtectKernelTunables=true
-ProtectProc=noaccess
-ProtectSystem=strict
-RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX
-RestrictNamespaces=true
-RestrictRealtime=true
-RestrictSUIDSGID=true
-SystemCallArchitectures=native
-SystemCallFilter=~@clock
-SystemCallFilter=~@cpu-emulation
-SystemCallFilter=~@debug
-SystemCallFilter=~@module
-SystemCallFilter=~@mount
-SystemCallFilter=~@obsolete
-SystemCallFilter=~@privileged
-SystemCallFilter=~@raw-io
-SystemCallFilter=~@reboot
-SystemCallFilter=~@swap
-
-[Install]
-WantedBy=multi-user.target

init/liquidsoap.service

@@ -1,54 +0,0 @@
-[Unit]
-Description=Arav's dwelling / Radio / Liquidsoap
-Requires=icecast.service
-After=network-online.target icecast.service
-
-[Service]
-Type=simple
-Restart=on-failure
-User=dwelling-radio
-DynamicUser=yes
-ExecStart=/opt/opam/default/bin/liquidsoap /etc/dwelling/radio.liq
-ExecStop=/bin/kill -INT $MAINPID
-
-ReadOnlyPaths=/
-
-LogsDirectory=dwelling-radio
-
-AmbientCapabilities=
-CapabilityBoundingSet=
-
-LockPersonality=true
-MemoryDenyWriteExecute=true
-NoNewPrivileges=true
-PrivateDevices=true
-PrivateTmp=true
-PrivateUsers=true
-ProcSubset=pid
-ProtectClock=true
-ProtectControlGroups=true
-ProtectHome=true
-ProtectHostname=true
-ProtectKernelLogs=true
-ProtectKernelModules=true
-ProtectKernelTunables=true
-ProtectProc=noaccess
-ProtectSystem=strict
-RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX
-RestrictNamespaces=true
-RestrictRealtime=true
-RestrictSUIDSGID=true
-SystemCallArchitectures=native
-SystemCallFilter=~@clock
-SystemCallFilter=~@cpu-emulation
-SystemCallFilter=~@debug
-SystemCallFilter=~@module
-SystemCallFilter=~@mount
-SystemCallFilter=~@obsolete
-SystemCallFilter=~@privileged
-SystemCallFilter=~@raw-io
-SystemCallFilter=~@reboot
-SystemCallFilter=~@swap
-
-[Install]
-WantedBy=multi-user.target

init/systemd.service

@@ -7,13 +7,9 @@ After=network-online.target icecast.service
 Type=simple
 Restart=on-failure
 DynamicUser=yes
-ExecStart=/usr/bin/dwelling-radio -listen /var/run/dwelling-radio/sock \
+ExecStart=/usr/bin/dwelling-radio -conf /etc/dwelling/radio.yaml
-    -work-dir /mnt/data/appdata/radio \
-    -playlist all-rand \
-    -lst-len 10
 
 ReadOnlyPaths=/
-ReadWritePaths=/mnt/data/appdata/radio
 
 LogsDirectory=dwelling-radio
 RuntimeDirectory=dwelling-radio
@@ -25,33 +21,18 @@ LockPersonality=true
 MemoryDenyWriteExecute=true
 NoNewPrivileges=true
 PrivateDevices=true
-PrivateTmp=true
-PrivateUsers=true
-ProcSubset=pid
 ProtectClock=true
 ProtectControlGroups=true
 ProtectHome=true
-ProtectHostname=true
 ProtectKernelLogs=true
 ProtectKernelModules=true
 ProtectKernelTunables=true
-ProtectProc=noaccess
 ProtectSystem=strict
 RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX
 RestrictNamespaces=true
 RestrictRealtime=true
 RestrictSUIDSGID=true
 SystemCallArchitectures=native
-SystemCallFilter=~@clock
-SystemCallFilter=~@cpu-emulation
-SystemCallFilter=~@debug
-SystemCallFilter=~@module
-SystemCallFilter=~@mount
-SystemCallFilter=~@obsolete
-SystemCallFilter=~@privileged
-SystemCallFilter=~@raw-io
-SystemCallFilter=~@reboot
-SystemCallFilter=~@swap
 
 [Install]
 WantedBy=multi-user.target

internal/configuration/configuration.go

@@ -0,0 +1,50 @@
+package configuration
+
+import (
+	"os"
+	"strings"
+
+	"github.com/pkg/errors"
+	"gopkg.in/yaml.v3"
+)
+
+type Configuration struct {
+	ListenOn string `yaml:"listen_on"`
+	Icecast  struct {
+		URL      string `yaml:"url"`
+		Playlist string `yaml:"playlist_path"`
+	} `yaml:"icecast"`
+	FilelistPath string `yaml:"filelist_path"`
+	Liquidsoap   struct {
+		ExecPath   string `yaml:"executable_path"`
+		ScriptPath string `yaml:"script_path"`
+	} `yaml:"liquidsoap"`
+	ListLastNSongs int `yaml:"list_last_n_songs"`
+	Log            struct {
+		Error string `yaml:"error"`
+	} `yaml:"log"`
+}
+
+// Load reads a YAML file that stores configuration of a service.
+func Load(path string) (*Configuration, error) {
+	configFile, err := os.Open(path)
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to open configuration file")
+	}
+	defer configFile.Close()
+
+	config := &Configuration{}
+
+	if err := yaml.NewDecoder(configFile).Decode(config); err != nil {
+		return nil, errors.Wrap(err, "failed to parse configuration file")
+	}
+
+	return config, nil
+}
+
+// SplitNetworkAddress splits ListenOn option into network type (e.g. tcp, unix,
+// udp) and address:port or /path/to/service.socket to listen on.
+func (c *Configuration) SplitNetworkAddress() (string, string) {
+	s := strings.Split(c.ListenOn, " ")
+	return s[0], s[1]
+}

internal/http/dj_handlers.go

@@ -1,156 +0,0 @@
-package http
-
-import (
-	"dwelling-radio/internal/radio"
-	"dwelling-radio/internal/statistics"
-	"dwelling-radio/pkg/oggtag"
-	"encoding/json"
-	"fmt"
-	"log"
-	"net/http"
-	"strings"
-	"time"
-)
-
-type DJHandlers struct {
-	listeners    *radio.ListenerCounter
-	playlist     *radio.Playlist
-	stats        statistics.Statistics
-	curSong      *radio.Song
-	listLen      int64
-	fallbackSong string
-}
-
-func NewDJHandlers(l *radio.ListenerCounter, p *radio.Playlist,
-	stats statistics.Statistics, cs *radio.Song, n int64, fS string) *DJHandlers {
-	return &DJHandlers{listeners: l, playlist: p,
-		stats: stats, curSong: cs, listLen: n, fallbackSong: fS}
-}
-
-func (dj *DJHandlers) ListenersUpdateIcecast(w http.ResponseWriter, r *http.Request) {
-	defer func() {
-		if err := recover(); err != nil {
-			log.Println("DJHandlers.ListenersUpdateIcecast panic:", err)
-		}
-	}()
-
-	if err := r.ParseForm(); err != nil {
-		log.Println("DJHandlers.ListenersUpdateIcecast:", err)
-		w.WriteHeader(http.StatusBadRequest)
-		return
-	}
-
-	switch r.FormValue("action") {
-	case "listener_add":
-		dj.listeners.Lock()
-		_ = dj.listeners.Inc()
-		dj.listeners.Unlock()
-	case "listener_remove":
-		dj.listeners.Lock()
-		defer dj.listeners.Unlock()
-		if _, err := dj.listeners.Dec(); err != nil {
-			log.Println("DJHandlers.ListenersUpdateIcecast:", err)
-			w.WriteHeader(http.StatusBadRequest)
-			return
-		}
-	default:
-		w.WriteHeader(http.StatusNotAcceptable)
-		return
-	}
-
-	w.Header().Add("Content-Type", "text/plain")
-	w.Header().Add("Icecast-Auth-User", "1")
-	w.WriteHeader(http.StatusOK)
-}
-
-const defaultArtistTag = "[LOL, no artist tag]"
-const defaultTitleTag = "[No title tag for you -_-]"
-const defaultTitleTagNoArtist = "[And no title tag either! Pffft]"
-
-func (dj *DJHandlers) PlaylistNext(w http.ResponseWriter, _ *http.Request) {
-	w.Header().Add("Content-Type", "text/plain")
-	dj.playlist.Lock()
-	nxt := dj.playlist.Next()
-	dj.playlist.Unlock()
-	if nxt == "" {
-		log.Println("the end of a playlist has been reached")
-		if nxt = dj.fallbackSong; nxt == "" {
-			log.Println("a fallback song is not set")
-			w.WriteHeader(http.StatusNotFound)
-			return
-		}
-	}
-
-	oggf, err := oggtag.NewOggFile(nxt)
-	if err != nil {
-		log.Println("cannot read an OGG file", nxt, ":", err)
-		w.WriteHeader(http.StatusInternalServerError)
-		return
-	}
-
-	newSong := radio.Song{
-		Artist:   oggf.GetTag("artist"),
-		Title:    oggf.GetTag("title"),
-		Duration: oggf.GetDuration(),
-		// Here 5 seconds are being added because it is approximately the
-		// time between the creation of this Song object and when ezstream
-		// actually starts to play it.
-		StartAt: time.Now()} // .Add(5 * time.Second)
-
-	if newSong.Artist == "" && newSong.Title == "" {
-		log.Println("Playlist:", nxt, "has no artist and title tags.")
-		newSong.Artist = defaultArtistTag
-		newSong.Title = defaultTitleTagNoArtist
-	} else if newSong.Artist == "" {
-		log.Println("Playlist:", nxt, "has no artist tag.")
-		newSong.Artist = defaultArtistTag
-	} else if newSong.Title == "" {
-		log.Println("Playlist:", nxt, "has no title tag.")
-		newSong.Title = defaultTitleTag
-	}
-
-	if strings.HasSuffix(nxt, "/fallback.ogg") {
-		newSong.Artist = "Nothing to play. Playing a fallback: " + newSong.Artist
-	}
-
-	dj.listeners.Lock()
-	dj.curSong.Listeners, dj.curSong.PeakListeners = dj.listeners.Reset()
-	dj.listeners.Unlock()
-
-	if dj.curSong.Artist != "" && !strings.Contains(dj.curSong.Artist, "no artist tag") &&
-		!strings.Contains(dj.curSong.Artist, "No title tag") {
-		if err := dj.stats.Add(dj.curSong); err != nil {
-			log.Println("cannot add a song to a stats DB:", err)
-		}
-	}
-
-	*dj.curSong = newSong
-	dj.curSong.Listeners = 0
-	dj.curSong.PeakListeners = 0
-
-	fmt.Fprintln(w, nxt)
-}
-
-func (dj *DJHandlers) Status(w http.ResponseWriter, r *http.Request) {
-	w.Header().Add("Content-Type", "application/json")
-
-	lst, err := dj.stats.LastNSongs(dj.listLen)
-	if err != nil {
-		log.Println("failed to fetch last n songs:", err)
-	}
-
-	dj.listeners.RLock()
-	defer dj.listeners.RUnlock()
-	err = json.NewEncoder(w).Encode(&struct {
-		Current   *radio.Song  `json:"current_song,omitempty"`
-		Listeners int64        `json:"listeners"`
-		List      []radio.Song `json:"last_songs,omitempty"`
-	}{
-		Current:   dj.curSong,
-		Listeners: dj.listeners.Current(),
-		List:      lst})
-	if err != nil {
-		log.Println("DJHandlers.Status:", err)
-		http.Error(w, "status parsing failed", http.StatusInternalServerError)
-	}
-}

internal/http/handlers.go

@@ -0,0 +1,112 @@
+package http
+
+import (
+	"dwelling-radio/internal/configuration"
+	"dwelling-radio/internal/radio"
+	"dwelling-radio/pkg/utils"
+	"dwelling-radio/web"
+	"encoding/json"
+	"log"
+	"net/http"
+	"os"
+	"time"
+)
+
+const FormatISO8601 = "2006-01-02T15:04:05-0700"
+
+type Handlers struct {
+	conf *configuration.Configuration
+}
+
+func NewHandlers(conf *configuration.Configuration) *Handlers {
+	return &Handlers{conf: conf}
+}
+
+func (h *Handlers) AssetsFS() http.FileSystem {
+	return web.Assets()
+}
+
+func (h *Handlers) Index(w http.ResponseWriter, r *http.Request) {
+	status, err := radio.IcecastGetStatus(h.conf.Icecast.URL)
+	if err != nil {
+		log.Println("failed to get Icecast status:", err)
+	} else {
+		if tim, err := time.Parse(time.RFC1123Z, status.ServerStartDate); err == nil {
+			status.ServerStartDate = utils.ToClientTimezone(tim, r).Format(time.RFC1123)
+		}
+
+		if tim, err := time.Parse(FormatISO8601, status.ServerStartISO8601); err == nil {
+			status.ServerStartISO8601 = utils.ToClientTimezone(tim, r).Format(FormatISO8601)
+		}
+	}
+
+	songs, err := radio.IcecastLastPlayedSongs(h.conf.ListLastNSongs,
+		h.conf.Icecast.Playlist)
+	if err != nil {
+		log.Println("cannot retrieve last songs:", err)
+	} else {
+		for i := 0; i < len(songs); i++ {
+			if tim, err := time.Parse(radio.SongTimeFormat, songs[i].Time); err == nil {
+				songs[i].Time = utils.ToClientTimezone(tim, r).Format("15:04")
+			}
+		}
+	}
+
+	web.Index(utils.MainSite(r.Host), h.conf.ListLastNSongs, status, &songs, w)
+}
+
+func (h *Handlers) Status(w http.ResponseWriter, r *http.Request) {
+	status, err := radio.IcecastGetStatus(h.conf.Icecast.URL)
+	if err != nil {
+		log.Println("cannot retrieve Icecast status:", err)
+		http.Error(w, "cannot retrieve Icecast status", http.StatusInternalServerError)
+		return
+	}
+
+	if tim, err := time.Parse(time.RFC1123Z, status.ServerStartDate); err == nil {
+		status.ServerStartDate = utils.ToClientTimezone(tim, r).Format(time.RFC1123)
+	}
+
+	if tim, err := time.Parse(FormatISO8601, status.ServerStartISO8601); err == nil {
+		status.ServerStartISO8601 = utils.ToClientTimezone(tim, r).Format(FormatISO8601)
+	}
+
+	w.Header().Add("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(status)
+}
+
+func (h *Handlers) LastSong(w http.ResponseWriter, r *http.Request) {
+	song, err := radio.IcecastLastSong(h.conf.Icecast.Playlist)
+	if err != nil {
+		log.Println("cannot retrieve last songs:", err)
+	}
+
+	if song.Time == "" {
+		w.WriteHeader(http.StatusNotFound)
+		return
+	}
+
+	if tim, err := time.Parse(radio.SongTimeFormat, song.Time); err == nil {
+		song.Time = utils.ToClientTimezone(tim, r).Format("15:04")
+	}
+
+	w.Header().Add("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(song)
+}
+
+func (h *Handlers) Playlist(w http.ResponseWriter, _ *http.Request) {
+	w.Header().Add("Content-Disposition", "attachment; filename=\"radio.arav.su.m3u\"")
+	fc, _ := web.AssetsGetFile("radio.arav.su.m3u")
+	w.Write(fc)
+}
+
+func (h *Handlers) Filelist(w http.ResponseWriter, _ *http.Request) {
+	w.Header().Add("Content-Type", "text/html")
+	data, _ := os.ReadFile(h.conf.FilelistPath)
+	w.Write(data)
+}
+
+func (h *Handlers) RobotsTxt(w http.ResponseWriter, _ *http.Request) {
+	w.Header().Add("Content-Disposition", "attachment; filename=\"robots.txt\"")
+	w.Write([]byte("User-agent: *\nDisallow: /assets/\nDisallow: /live/"))
+}

internal/http/http.go

@@ -0,0 +1,76 @@
+package http
+
+import (
+	"context"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"time"
+
+	"github.com/julienschmidt/httprouter"
+)
+
+type HttpServer struct {
+	server *http.Server
+	router *httprouter.Router
+}
+
+func NewHttpServer() *HttpServer {
+	r := httprouter.New()
+	return &HttpServer{
+		server: &http.Server{
+			ReadTimeout:  3 * time.Second,
+			WriteTimeout: 3 * time.Second,
+			Handler:      r,
+		},
+		router: r,
+	}
+}
+
+func (s *HttpServer) GET(path string, handler http.HandlerFunc) {
+	s.router.Handler(http.MethodGet, path, handler)
+}
+
+func (s *HttpServer) ServeStatic(path string, fsys http.FileSystem) {
+	s.router.ServeFiles(path, fsys)
+}
+
+func (s *HttpServer) SetNotFoundHandler(handler http.HandlerFunc) {
+	s.router.NotFound = handler
+}
+
+// GetURLParam wrapper around underlying router for getting URL parameters.
+func GetURLParam(r *http.Request, param string) string {
+	return httprouter.ParamsFromContext(r.Context()).ByName(param)
+}
+
+func (s *HttpServer) Start(network, address string) error {
+	listener, err := net.Listen(network, address)
+	if err != nil {
+		return err
+	}
+
+	if listener.Addr().Network() == "unix" {
+		os.Chmod(address, 0777)
+	}
+
+	go func() {
+		if err = s.server.Serve(listener); err != nil && err != http.ErrServerClosed {
+			log.Fatalln(err)
+		}
+	}()
+
+	return nil
+}
+
+func (s *HttpServer) Stop() error {
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	if err := s.server.Shutdown(ctx); err != nil {
+		return err
+	}
+
+	return nil
+}

internal/http/server.go

@@ -1,76 +0,0 @@
-package http
-
-import (
-	"context"
-	"log"
-	"net"
-	"net/http"
-	"net/netip"
-	"os"
-	"strings"
-	"time"
-)
-
-type HttpServer struct {
-	s    http.Server
-	addr net.Addr
-}
-
-func NewHttpServer(r http.Handler) *HttpServer {
-	return &HttpServer{s: http.Server{
-		ReadTimeout:  3 * time.Second,
-		WriteTimeout: 3 * time.Second,
-		Handler:      r}}
-}
-
-func (s *HttpServer) Start(address string) error {
-	var network string
-	if !strings.ContainsRune(address, ':') {
-		network = "unix"
-	} else {
-		ap, err := netip.ParseAddrPort(address)
-		if err != nil {
-			return err
-		}
-
-		if ap.Addr().Is4() {
-			network = "tcp4"
-		} else if ap.Addr().Is6() {
-			network = "tcp6"
-		}
-	}
-
-	listener, err := net.Listen(network, address)
-	if err != nil {
-		return err
-	}
-
-	if listener.Addr().Network() == "unix" {
-		os.Chmod(address, 0777)
-	}
-
-	s.addr = listener.Addr()
-
-	go func() {
-		if err = s.s.Serve(listener); err != nil && err != http.ErrServerClosed {
-			log.Fatalln(err)
-		}
-	}()
-
-	return nil
-}
-
-func (s *HttpServer) Stop() error {
-	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
-	defer cancel()
-
-	if s.addr.Network() == "unix" {
-		defer os.Remove(s.addr.String())
-	}
-
-	if err := s.s.Shutdown(ctx); err != nil {
-		return err
-	}
-
-	return nil
-}

internal/radio/icecast.go

@@ -0,0 +1,225 @@
+package radio
+
+import (
+	"bytes"
+	"dwelling-radio/pkg/watcher"
+	"encoding/json"
+	"io"
+	"net/http"
+	"os"
+	"sync"
+	"syscall"
+	"time"
+
+	"github.com/pkg/errors"
+)
+
+const (
+	IcecastPlaylistDateFormat = "02/Jan/2006:15:04:05 -0700"
+	SongTimeFormat            = "2006 15:04-0700"
+
+	bufferSize = 32768
+)
+
+var (
+	lastPlayedCache      []Song = make([]Song, 10)
+	lastPlayedCacheMutex sync.Mutex
+)
+
+type IcecastStatusDTO struct {
+	Icestats struct {
+		ServerStartISO8601 string `json:"server_start_iso8601"`
+		ServerStartDate    string `json:"server_start"`
+		Source             struct {
+			Artist       string `json:"artist"`
+			Title        string `json:"title"`
+			ListenerPeak int    `json:"listener_peak"`
+			Listeners    int    `json:"listeners"`
+		} `json:"source"`
+	} `json:"icestats"`
+}
+
+func (is *IcecastStatusDTO) SongName() string {
+	return is.Icestats.Source.Artist + " - " + is.Icestats.Source.Title
+}
+
+type IcecastStatus struct {
+	ServerStartISO8601 string `json:"server_start_iso8601"`
+	ServerStartDate    string `json:"server_start_date"`
+	SongName           string `json:"song"`
+	ListenerPeak       int    `json:"listener_peak"`
+	Listeners          int    `json:"listeners"`
+}
+
+type Song struct {
+	Time      string `json:"time"`
+	Listeners string `json:"listeners"`
+	Song      string `json:"song"`
+}
+
+func IcecastGetStatus(icecastURL string) (*IcecastStatus, error) {
+	resp, err := http.Get(icecastURL)
+	if err != nil {
+		return nil, err
+	}
+
+	iceStatDTO := &IcecastStatusDTO{}
+
+	if err := json.NewDecoder(resp.Body).Decode(iceStatDTO); err != nil {
+		return nil, err
+	}
+
+	return &IcecastStatus{
+		ServerStartISO8601: iceStatDTO.Icestats.ServerStartISO8601,
+		ServerStartDate:    iceStatDTO.Icestats.ServerStartDate,
+		SongName:           iceStatDTO.SongName(),
+		ListenerPeak:       iceStatDTO.Icestats.Source.ListenerPeak,
+		Listeners:          iceStatDTO.Icestats.Source.Listeners,
+	}, nil
+}
+
+func IcecastLastPlayedSongs(lastNSongs int, playlistPath string) ([]Song, error) {
+	{
+		lastPlayedCacheMutex.Lock()
+		defer lastPlayedCacheMutex.Unlock()
+		if lpcLen := len(lastPlayedCache); lpcLen > 0 {
+			if lastNSongs > lpcLen {
+				lastNSongs = lpcLen
+			}
+			var ret []Song = make([]Song, lastNSongs)
+			copy(ret[:], lastPlayedCache[lpcLen-lastNSongs:])
+			return ret, nil
+		}
+	}
+
+	songs, err := icecastLastPlayedSongs(playlistPath, lastNSongs)
+	if err != nil {
+		return make([]Song, 0), err
+	}
+
+	return songs, nil
+}
+
+func IcecastLastSong(playlistPath string) (Song, error) {
+	{
+		lastPlayedCacheMutex.Lock()
+		defer lastPlayedCacheMutex.Unlock()
+		if lpcLen := len(lastPlayedCache); lpcLen > 0 {
+			return lastPlayedCache[lpcLen-1], nil
+		}
+	}
+
+	song, err := icecastLastPlayedSongs(playlistPath, 1)
+	if err != nil {
+		return Song{}, err
+	}
+
+	return song[0], nil
+}
+
+func icecastLastPlayedSongs(playlistPath string, n int) ([]Song, error) {
+	songs := make([]Song, n)
+	var buf []byte
+	var offset int64 = 0
+
+	playlist, err := os.Open(playlistPath)
+	if err != nil {
+		return nil, err
+	}
+	defer playlist.Close()
+
+	playlist_stat, _ := playlist.Stat()
+
+	if playlist_stat.Size() == 0 {
+		return nil, nil
+	}
+
+	if playlist_stat.Size() < bufferSize {
+		buf = make([]byte, playlist_stat.Size())
+	} else {
+		buf = make([]byte, bufferSize)
+		offset = playlist_stat.Size() - bufferSize
+	}
+
+	_, err = playlist.ReadAt(buf, offset)
+	if err != nil && err != io.EOF {
+		return nil, err
+	}
+
+	lines := bytes.Split(buf, []byte("\n"))
+
+	if len(lines) < 3 {
+		return nil, nil
+	}
+
+	lines = lines[:len(lines)-2]
+
+	if len(lines) > n {
+		lines = lines[len(lines)-n:]
+	}
+
+	for _, line := range lines {
+		fields := bytes.Split(line, []byte("|"))
+
+		tim, _ := time.Parse(IcecastPlaylistDateFormat, string(fields[0]))
+
+		songs = append(songs, Song{
+			Time:      tim.Format(SongTimeFormat),
+			Listeners: string(fields[2]),
+			Song:      string(fields[3])})
+	}
+
+	return songs, nil
+}
+
+type PlaylistLogWatcher struct {
+	watcher *watcher.InotifyWatcher
+	changed chan uint32
+}
+
+func NewPlaylistLogWatcher() *PlaylistLogWatcher {
+	return &PlaylistLogWatcher{changed: make(chan uint32)}
+}
+
+func (pw *PlaylistLogWatcher) Watch(playlistPath string, n int) (err error) {
+	if pw.watcher != nil {
+		pw.watcher.Close()
+	}
+
+	pw.watcher, err = watcher.NewInotifyWatcher()
+	if err != nil {
+		return errors.Wrap(err, "cannot instantiate inotify watcher")
+	}
+
+	err = pw.watcher.AddWatch(playlistPath, watcher.ModIgnMask)
+	if err != nil {
+		return errors.Wrap(err, "cannot set a playlist to watch")
+	}
+
+	pw.watcher.WatchForMask(pw.changed, watcher.ModIgnMask)
+
+	go func() {
+		for {
+			select {
+			case mask := <-pw.changed:
+				if mask&syscall.IN_MODIFY > 0 {
+					lastPlayedCacheMutex.Lock()
+					if songs, err := icecastLastPlayedSongs(playlistPath, n); err == nil {
+						lastPlayedCache = songs
+					}
+					lastPlayedCacheMutex.Unlock()
+				} else if mask&syscall.IN_IGNORED > 0 {
+					pw.Close()
+					pw.Watch(playlistPath, n)
+					return
+				}
+			}
+		}
+	}()
+
+	return nil
+}
+
+func (pw *PlaylistLogWatcher) Close() {
+	pw.watcher.Close()
+}

internal/radio/liquidsoap.go

@@ -0,0 +1,54 @@
+package radio
+
+import (
+	"os/exec"
+	"syscall"
+
+	"github.com/pkg/errors"
+)
+
+var ErrLiquidsoapNotRunning = errors.New("liquidsoap is not running")
+
+type Liquidsoap struct {
+	command *exec.Cmd
+}
+
+func NewLiquidsoap(liquidsoapPath, scriptPath string) (*Liquidsoap, error) {
+	if _, err := exec.LookPath(liquidsoapPath); err != nil {
+		return nil, err
+	}
+
+	out, err := exec.Command(liquidsoapPath, "--verbose", "-c", scriptPath).CombinedOutput()
+	if err != nil {
+		return nil, errors.Wrap(err, "script cannot be validated")
+	}
+
+	if len(out) > 0 {
+		return nil, errors.Errorf("script validation failed: %s", string(out))
+	}
+
+	cmd := exec.Command(liquidsoapPath, scriptPath)
+
+	if err := cmd.Start(); err != nil {
+		return nil, err
+	}
+
+	return &Liquidsoap{
+		command: cmd}, nil
+}
+
+func (l *Liquidsoap) Stop() error {
+	if l.command.Process == nil && l.command.ProcessState != nil {
+		return ErrLiquidsoapNotRunning
+	}
+
+	if err := l.command.Process.Signal(syscall.SIGINT); err != nil {
+		return err
+	}
+
+	if err := l.command.Wait(); err != nil {
+		return err
+	}
+
+	return nil
+}

internal/radio/listener_counter.go

@@ -1,93 +0,0 @@
-package radio
-
-import (
-	"encoding/json"
-	"errors"
-	"math"
-	"sync"
-)
-
-// ListenerCounter stores the current, overall and peak numbers of listeners.
-type ListenerCounter struct {
-	sync.RWMutex
-	current, peak     int64
-	overall, cur_peak int64
-}
-
-// NewListenerCounter returns a new ListenerCounter struct instance.
-func NewListenerCounter() *ListenerCounter {
-	return &ListenerCounter{}
-}
-
-// Current returns a number of current listeners.
-func (l *ListenerCounter) Current() int64 {
-	return l.current
-}
-
-// Peak returns a peak number of listeners.
-func (l *ListenerCounter) Peak() int64 {
-	return l.peak
-}
-
-// CurrentPeak returns a peak number of listeners for a currently playing song.
-func (l *ListenerCounter) CurrentPeak() int64 {
-	return l.cur_peak
-}
-
-// Overall returns an overall number of listeners for a currently playing song.
-func (l *ListenerCounter) Overall() int64 {
-	return l.overall
-}
-
-// Inc increments by 1 a current number of listeners and updates a peak number.
-func (l *ListenerCounter) Inc() int64 {
-	if l.current == math.MaxInt64 {
-		// We panic here because if this will ever happen, then something's going certainly wrong.
-		panic("a current number of listeners exceeded MaxInt64")
-	}
-	l.current++
-	if l.current > l.peak {
-		l.peak = l.current
-	}
-	if l.current > l.cur_peak {
-		l.cur_peak = l.current
-	}
-	if l.overall == math.MaxInt64 {
-		panic("an overall number of listeners exceeded MaxInt64")
-	}
-	l.overall++
-	return l.current
-}
-
-// Dec decrements by 1 a current number of listeners. An error will occur if
-// a resulting number is less than 0.
-func (l *ListenerCounter) Dec() (int64, error) {
-	if l.current == 0 {
-		return l.current, errors.New("an attempt to decrement a number of current listeners down to less than 0")
-	}
-	l.current--
-	return l.current, nil
-}
-
-// Reset current peak and overall listeners for a song that is playing.
-// And return its values.
-func (l *ListenerCounter) Reset() (overall, peak int64) {
-	peak = l.cur_peak
-	l.cur_peak = l.current
-	overall = l.overall
-	l.overall = l.current
-	return
-}
-
-func (l *ListenerCounter) MarshalJSON() ([]byte, error) {
-	return json.Marshal(&struct {
-		Current int64 `json:"current"`
-		Peak    int64 `json:"peak"`
-		Overall int64 `json:"overall"`
-		CurPeak int64 `json:"current_peak"`
-	}{
-		Current: l.current,
-		Peak:    l.peak,
-		Overall: l.overall,
-		CurPeak: l.cur_peak})
-}

internal/radio/playlist.go

@@ -1,64 +0,0 @@
-package radio
-
-import (
-	"os"
-	"strings"
-	"sync"
-
-	"github.com/pkg/errors"
-)
-
-// Playlist holds a list of paths to a song files.
-type Playlist struct {
-	sync.Mutex
-	filePath string
-	playlist []string
-	cur      int
-	repeat   bool
-}
-
-// NewPlaylist returns an instance of a Playlist struct with a loaded playlist.
-// Returns an error if failed to load a playlist file.
-func NewPlaylist(filePath string, repeat bool) (*Playlist, error) {
-	p := &Playlist{filePath: filePath, repeat: repeat}
-	return p, p.load()
-}
-
-// Next returns the next song to play. Returns an empty string if repeat is
-// false and the end of a playlist was reached.
-func (p *Playlist) Next() (song string) {
-	if p.cur == len(p.playlist) {
-		// If the end of a playlist was reached and repeat is set to true,
-		// then go back to the head of it, thus repeating it. Return an empty
-		// string otherwise.
-		if p.repeat {
-			p.cur = 0
-		} else {
-			return ""
-		}
-	}
-	song = p.playlist[p.cur]
-	p.cur++
-	return
-}
-
-// Load reads a playlist file.
-func (p *Playlist) load() error {
-	data, err := os.ReadFile(p.filePath)
-	if err != nil {
-		return errors.Wrap(err, "cannot open a playlist file")
-	}
-
-	if len(data) == 0 {
-		return errors.New("a playlist file is empty. Did not update")
-	}
-
-	p.playlist = strings.Split(string(data), "\n")
-	p.cur = 0
-
-	return nil
-}
-
-func (p *Playlist) Reload() error {
-	return p.load()
-}

internal/radio/song.go

@@ -1,40 +0,0 @@
-package radio
-
-import (
-	"encoding/json"
-	"time"
-)
-
-type Song struct {
-	Artist        string
-	Title         string
-	StartAt       time.Time
-	Duration      time.Duration
-	Listeners     int64
-	PeakListeners int64
-}
-
-// DurationString returns song's duration as a string formatted as [H:]M:SS.
-func (s *Song) DurationString() string {
-	if s.Duration.Hours() >= 1 {
-		return time.UnixMilli(s.Duration.Milliseconds()).Format("3:4:05")
-	}
-	return time.UnixMilli(s.Duration.Milliseconds()).Format("4:05")
-}
-
-func (s *Song) MarshalJSON() ([]byte, error) {
-	return json.Marshal(&struct {
-		Artist        string `json:"artist"`
-		Title         string `json:"title"`
-		DurationMill  int64  `json:"duration_msec,omitempty"`
-		Listeners     int64  `json:"listeners,omitempty"`
-		PeakListeners int64  `json:"peak_listeners,omitempty"`
-		StartAt       string `json:"start_at"`
-	}{
-		Artist:        s.Artist,
-		Title:         s.Title,
-		DurationMill:  s.Duration.Milliseconds(),
-		Listeners:     s.Listeners,
-		PeakListeners: s.PeakListeners,
-		StartAt:       s.StartAt.UTC().Format(time.RFC3339)})
-}

internal/statistics/db/sqlite/db.go

@@ -1,90 +0,0 @@
-package sqlite
-
-import (
-	"database/sql"
-	"dwelling-radio/internal/statistics"
-	_ "embed"
-	"fmt"
-
-	_ "github.com/mattn/go-sqlite3"
-	"github.com/pkg/errors"
-)
-
-const dbDateFormat = "2006-01-02 15:04:05.999"
-
-var (
-	//go:embed queries/schema.sql
-	querySchema string
-
-	//go:embed queries/song_add.sql
-	querySongAdd string
-
-	//go:embed queries/history_add.sql
-	queryHistoryAdd string
-
-	//go:embed queries/last_n_songs.sql
-	queryLastNSongs string
-	//go:embed queries/most_popular_songs.sql
-	queryMostPopularSongs string
-	//go:embed queries/most_simultaneous_listeners.sql
-	queryMostSimultaneousListeners string
-)
-
-type SQLiteStatistics struct {
-	statistics.BaseStatistics
-}
-
-func New(path string) (statistics.Statistics, error) {
-	db, err := sql.Open("sqlite3", fmt.Sprintf("file:%s?_journal=WAL&_mutex=full", path))
-	if err != nil {
-		return nil, err
-	}
-
-	stats := &SQLiteStatistics{
-		BaseStatistics: statistics.BaseStatistics{
-			Db: db, DbDateFormat: dbDateFormat}}
-
-	db.Exec("PRAGMA foreign_keys = ON;")
-
-	_, err = db.Exec(querySchema)
-	if err != nil {
-		return nil, errors.Wrap(err,
-			statistics.ErrPrepareStmt{Name: "initial schema"}.Error())
-	}
-
-	stats.BaseStatistics.StmtSongAdd, err = db.Prepare(querySongAdd)
-	if err != nil {
-		return nil, errors.Wrap(err,
-			statistics.ErrPrepareStmt{Name: "song_add"}.Error())
-	}
-
-	stats.BaseStatistics.StmtHistoryAdd, err = db.Prepare(queryHistoryAdd)
-	if err != nil {
-		return nil, errors.Wrap(err,
-			statistics.ErrPrepareStmt{Name: "history_add"}.Error())
-	}
-
-	stats.BaseStatistics.StmtLastNSongs, err = db.Prepare(queryLastNSongs)
-	if err != nil {
-		return nil, errors.Wrap(err,
-			statistics.ErrPrepareStmt{Name: "last N songs"}.Error())
-	}
-
-	stats.BaseStatistics.StmtMostPopularSongs, err = db.Prepare(queryMostPopularSongs)
-	if err != nil {
-		return nil, errors.Wrap(err,
-			statistics.ErrPrepareStmt{Name: "most popular song"}.Error())
-	}
-
-	stats.BaseStatistics.StmtMostSimultaneousListeners, err = db.Prepare(queryMostSimultaneousListeners)
-	if err != nil {
-		return nil, errors.Wrap(err,
-			statistics.ErrPrepareStmt{Name: "most simultaneous listeners"}.Error())
-	}
-
-	return stats, nil
-}
-
-func (s *SQLiteStatistics) Close() error {
-	return s.BaseStatistics.Close()
-}

internal/statistics/db/sqlite/queries/history_add.sql

@@ -1,3 +0,0 @@
-INSERT OR IGNORE INTO `history`
-    (`start_at`, `song_id`, `listeners`, `peak_listeners`)
-VALUES (?,?,?,?);

internal/statistics/db/sqlite/queries/last_n_songs.sql

@@ -1,19 +0,0 @@
-SELECT
-    `start_at`,
-    `artist`,
-    `title`,
-    `listeners`,
-    `peak_listeners`
-FROM
-    (SELECT
-        `start_at`,
-        `artist`,
-        `title`,
-        `listeners`,
-        `peak_listeners`
-       FROM `history`
-     LEFT JOIN `song`
-            ON `song`.`song_id` = `history`.`song_id`
-     ORDER BY `start_at` DESC
-     LIMIT ? )
-ORDER BY `start_at` ASC;

internal/statistics/db/sqlite/queries/most_popular_songs.sql

@@ -1,10 +0,0 @@
-SELECT
-    `artist`,
-    `title`,
-    SUM(`listeners`) AS `most_listeners`
-FROM `history`
-LEFT JOIN `song`
-     ON `song`.`song_id` = `history`.`song_id`
-GROUP BY `song`.`song_id`
-ORDER BY `most_listeners` DESC
-LIMIT ?;

internal/statistics/db/sqlite/queries/most_simultaneous_listeners.sql

@@ -1,8 +0,0 @@
-SELECT
-    MAX(`start_at`) AS `start_at`,
-    `artist`,
-    `title`,
-    MAX(`peak_listeners`) AS `peak_listeners`
-FROM `history`
-LEFT JOIN `song`
-     ON `song`.`song_id` = `history`.`song_id`;

internal/statistics/db/sqlite/queries/schema.sql

@@ -1,15 +0,0 @@
-CREATE TABLE IF NOT EXISTS `song` (
-    `song_id` INTEGER NOT NULL,
-    `artist`  TEXT    NOT NULL,
-    `title`   TEXT    NOT NULL,
-    PRIMARY KEY (`song_id` AUTOINCREMENT),
-    UNIQUE (`artist`, `title`) );
-
-CREATE TABLE IF NOT EXISTS `history` (
-    `start_at`       TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%d %H:%M:%f', 'now')),
-    `song_id`        INTEGER NOT NULL,
-    `listeners`      INTEGER NOT NULL,
-    `peak_listeners` INTEGER NOT NULL,
-    PRIMARY KEY (`start_at`),
-    FOREIGN KEY (`song_id`) REFERENCES `song` (`song_id`)
-             ON UPDATE CASCADE ON DELETE CASCADE );

internal/statistics/db/sqlite/queries/song_add.sql

@@ -1,6 +0,0 @@
-INSERT INTO `song`
-    (`artist`, `title`)
-VALUES (?, ?)
-    ON CONFLICT DO
-       UPDATE SET `song_id`=`song_id`
-RETURNING `song_id`;

internal/statistics/statistics.go

@@ -1,138 +0,0 @@
-package statistics
-
-import (
-	"database/sql"
-	"dwelling-radio/internal/radio"
-	"fmt"
-	"time"
-
-	"github.com/pkg/errors"
-)
-
-const MostListenedDateFormat string = "02 January 2006 at 15:04:05 MST"
-
-type Statistics interface {
-	Add(*radio.Song) error
-	LastNSongs(n int64) ([]radio.Song, error)
-	MostNPopularSongs(n int64) ([]radio.Song, error)
-	MostSimultaneousListeners() (radio.Song, error)
-	Close() error
-}
-
-type ErrPrepareStmt struct {
-	Name string
-}
-
-func (e ErrPrepareStmt) Error() string {
-	return fmt.Sprintf("failed to prepare an SQL statement '%s'", e.Name)
-}
-
-var ErrNoSong = errors.New("no song was passed (a struct is nil or empty)")
-var ErrSongNotAdded = errors.New("song was not added")
-
-type BaseStatistics struct {
-	Db           *sql.DB
-	DbDateFormat string
-
-	StmtHistoryAdd *sql.Stmt
-	StmtSongAdd    *sql.Stmt
-
-	StmtLastNSongs                *sql.Stmt
-	StmtMostPopularSongs          *sql.Stmt
-	StmtMostSimultaneousListeners *sql.Stmt
-}
-
-func (s *BaseStatistics) Add(song *radio.Song) error {
-	if song == nil || song.Artist == "" || song.Title == "" {
-		return ErrNoSong
-	}
-
-	tx, err := s.Db.Begin()
-	if err != nil {
-		return err
-	}
-	defer tx.Rollback()
-
-	row := tx.Stmt(s.StmtSongAdd).QueryRow(song.Artist, song.Title)
-	if row.Err() != nil {
-		return row.Err()
-	}
-
-	var songID int64
-	if err := row.Scan(&songID); err != nil {
-		return err
-	}
-
-	_, err = tx.Stmt(s.StmtHistoryAdd).Exec(song.StartAt.UTC().Format(s.DbDateFormat),
-		songID, song.Listeners, song.PeakListeners)
-	if err != nil {
-		return errors.Wrap(err, ErrSongNotAdded.Error())
-	}
-
-	tx.Commit()
-
-	return nil
-}
-
-func (s *BaseStatistics) LastNSongs(n int64) ([]radio.Song, error) {
-	if n == 0 {
-		return nil, nil
-	}
-
-	tx, err := s.Db.Begin()
-	if err != nil {
-		return nil, err
-	}
-	defer tx.Rollback()
-
-	rows, err := tx.Stmt(s.StmtLastNSongs).Query(n)
-	if err != nil {
-		return nil, err
-	}
-
-	songs := make([]radio.Song, n)
-
-	i := 0
-	for rows.Next() {
-		var startAt string
-
-		if err := rows.Scan(&startAt, &songs[i].Artist, &songs[i].Title,
-			&songs[i].Listeners, &songs[i].PeakListeners); err != nil {
-			return nil, err
-		}
-
-		songs[i].StartAt, err = time.Parse(s.DbDateFormat, startAt)
-		if err != nil {
-			return nil, err
-		}
-
-		i++
-	}
-
-	tx.Commit()
-
-	if i == 0 {
-		return nil, nil
-	}
-
-	lst := make([]radio.Song, i)
-	copy(lst, songs[:])
-
-	return lst, nil
-}
-
-func (s *BaseStatistics) MostNPopularSongs(n int64) ([]radio.Song, error) {
-	if n == 0 {
-		return nil, nil
-	}
-
-	return nil, nil
-}
-
-func (s *BaseStatistics) MostSimultaneousListeners() (radio.Song, error) {
-	return radio.Song{}, nil
-}
-
-func (s *BaseStatistics) Close() error {
-	return s.Db.Close()
-}

pkg/oggtag/oggtag.go

@@ -1,106 +0,0 @@
-package oggtag
-
-/* oggtag is a naive implementation of OGG tag's reader that is just looking
-for certain tag names ending with an = character, e.g. artist= and title=.
-*/
-
-import (
-	"bytes"
-	"io"
-	"os"
-	"strings"
-	"time"
-)
-
-const (
-	bufferLength = 6144
-	OggS         = "OggS"
-	OggSLen      = len(OggS)
-	Vorbis       = "vorbis"
-	VorbisLen    = len(Vorbis)
-)
-
-// OggFile holds a head of a file and a tail part conatining last granule.
-type OggFile struct {
-	bufHead, bufLast []byte
-}
-
-// NewOggFile reads a file and returns a new OggFile.
-func NewOggFile(path string) (*OggFile, error) {
-	f, err := os.Open(path)
-	if err != nil {
-		return nil, err
-	}
-	defer f.Close()
-
-	of := &OggFile{}
-
-	of.bufHead = make([]byte, bufferLength)
-
-	if _, err := f.Read(of.bufHead); err != nil {
-		return nil, err
-	}
-
-	of.bufLast = make([]byte, bufferLength)
-
-	if _, err := f.Seek(-bufferLength, io.SeekEnd); err != nil {
-		return nil, err
-	}
-
-	fst, err := f.Stat()
-	if err != nil {
-		return nil, err
-	}
-
-	for offset := int64(bufferLength); offset <= fst.Size(); offset += bufferLength {
-		if _, err := f.Seek(-offset, io.SeekEnd); err != nil {
-			return nil, err
-		}
-
-		if _, err := f.Read(of.bufLast); err != nil {
-			return nil, err
-		}
-
-		if bytes.Contains(of.bufLast, []byte(OggS)) {
-			break
-		}
-	}
-
-	return of, nil
-}
-
-// GetTag is searching for a certain tag and returns its value or an empty string.
-func (of *OggFile) GetTag(tag string) string {
-	tagIdx := bytes.Index(of.bufHead, append([]byte{0, 0, 0}, (tag+"=")...))
-	if tagIdx == -1 {
-		if tagIdx = bytes.Index(of.bufHead, append([]byte{0, 0, 0}, (strings.ToUpper(tag)+"=")...)); tagIdx == -1 {
-			if tagIdx = bytes.Index(of.bufHead, append([]byte{0, 0, 0}, (strings.Title(tag)+"=")...)); tagIdx == -1 {
-				return ""
-			}
-		}
-	}
-	tagIdx += 3
-	tagNameLen := len(tag) + 1
-	valStart := tagIdx + tagNameLen
-	valLen := int(of.bufHead[tagIdx-4]) - tagNameLen
-	return string(of.bufHead[valStart : valStart+valLen])
-}
-
-// GetDuration returns song's duration in milliseconds.
-func (of *OggFile) GetDuration() time.Duration {
-	rateIdx := bytes.Index(of.bufHead, []byte(Vorbis)) +
-		VorbisLen + 5
-	rateBytes := of.bufHead[rateIdx : rateIdx+4]
-	rate := int32(rateBytes[0]) + int32(rateBytes[1])<<8 +
-		int32(rateBytes[2])<<16 + int32(rateBytes[3])<<24
-
-	granuleIdx := bytes.LastIndex(of.bufLast, []byte(OggS)) +
-		OggSLen + 2
-	granuleBytes := of.bufLast[granuleIdx : granuleIdx+8]
-	granule := int64(granuleBytes[0]) + int64(granuleBytes[1])<<8 +
-		int64(granuleBytes[2])<<16 + int64(granuleBytes[3])<<24 +
-		int64(granuleBytes[4])<<32 + int64(granuleBytes[5])<<40 +
-		int64(granuleBytes[6])<<48 + int64(granuleBytes[7])<<56
-
-	return time.Duration(granule*1000/int64(rate)) * time.Millisecond
-}

pkg/oggtag/oggtag_test.go

@@ -1,57 +0,0 @@
-package oggtag
-
-import (
-	"testing"
-	"time"
-)
-
-const sampleSong = "/mnt/data/appdata/radio/fallback.ogg"
-const sampleArtist = "breskina"
-const sampleTitle = "Песня про мечты"
-
-func TestGetTag(t *testing.T) {
-	oggf, err := NewOggFile(sampleSong)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	tag := oggf.GetTag("artist")
-	if tag != sampleArtist {
-		t.Error(tag, "!=", sampleArtist)
-	}
-	tag = oggf.GetTag("title")
-	if tag != sampleTitle {
-		t.Error(tag, "!=", sampleTitle)
-	}
-}
-
-func BenchmarkGetTag(b *testing.B) {
-	oggf, err := NewOggFile(sampleSong)
-	if err != nil {
-		b.Fatal(err)
-	}
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		oggf.GetTag("artist")
-	}
-}
-
-func BenchmarkGetDuration(b *testing.B) {
-	oggf, err := NewOggFile(sampleSong)
-	if err != nil {
-		b.Fatal(err)
-	}
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		oggf.GetDuration()
-	}
-}
-
-func TestGetDuration(t *testing.T) {
-	oggf, err := NewOggFile(sampleSong)
-	if err != nil {
-		t.Fatal(err)
-	}
-	dur := oggf.GetDuration()
-	t.Log(dur, ((dur)/time.Second)*time.Second, dur.Milliseconds())
-}

pkg/utils/dwelling.go

@@ -19,13 +19,6 @@ func MainSite(host string) string {
 	return "https://arav.su"
 }
 
-func Site(host string) string {
-	if strings.Contains(host, ".su") {
-		return "https://radio.arav.su"
-	}
-	return "http://" + host
-}
-
 // ToClientTimezone converts given time to timezone set in a
 // X-Client-Timezone header. If this header is not set, then
 // converts to UTC.

pkg/watcher/linux.go

@@ -0,0 +1,85 @@
+package watcher
+
+import (
+	"syscall"
+	"unsafe"
+
+	"github.com/pkg/errors"
+)
+
+const (
+	CrDelMask  uint32 = syscall.IN_CREATE | syscall.IN_DELETE
+	ModIgnMask uint32 = syscall.IN_MODIFY | syscall.IN_IGNORED
+)
+
+const inotifyCount = 16
+
+type InotifyWatcher struct {
+	fd     int
+	wds    []int
+	closed bool
+}
+
+func NewInotifyWatcher() (w *InotifyWatcher, err error) {
+	w = &InotifyWatcher{closed: false}
+
+	w.fd, err = syscall.InotifyInit()
+	if err != nil {
+		return nil, errors.Wrap(err, "failed to initialise inotify watcher")
+	}
+
+	w.wds = make([]int, 0)
+
+	return w, nil
+}
+
+func (w *InotifyWatcher) AddWatch(path string, mask uint32) error {
+	wd, err := syscall.InotifyAddWatch(w.fd, path, mask)
+	if err != nil {
+		return errors.Wrapf(err, "failed to set %s on watch", path)
+	}
+
+	w.wds = append(w.wds, wd)
+
+	return nil
+}
+
+// WatchForMask checking for events from mask and returns inotify mask to channel.
+func (w *InotifyWatcher) WatchForMask(fired chan uint32, mask uint32) {
+	go func() {
+		for !w.closed {
+			buffer := make([]byte, syscall.SizeofInotifyEvent*inotifyCount)
+			n, err := syscall.Read(w.fd, buffer)
+			if err != nil {
+				break
+			}
+
+			if n < syscall.SizeofInotifyEvent {
+				continue
+			}
+
+			for offset := 0; offset < len(buffer); offset += syscall.SizeofInotifyEvent {
+				event := (*syscall.InotifyEvent)(unsafe.Pointer(&buffer[offset]))
+				if event.Mask&mask > 0 {
+					fired <- event.Mask
+				}
+			}
+		}
+	}()
+}
+
+func (w *InotifyWatcher) Close() error {
+	for _, wd := range w.wds {
+		if _, err := syscall.InotifyRmWatch(w.fd, uint32(wd)); err != nil {
+			return err
+		}
+	}
+
+	if err := syscall.Close(w.fd); err != nil {
+		return err
+	}
+
+	w.closed = true
+
+	return nil
+}

tools/radio-fetch

@@ -1,9 +0,0 @@
-#!/usr/bin/env sh
-
-outp="$(curl -XGET --unix-socket /var/run/dwelling-radio/sock http://localhost/api/playlist -s -w '%{response_code}')"
-
-if [ "${outp: -3}" != "200" ]; then
-    exit 1;
-fi
-
-echo ${outp%????}

tools/radioctl

@@ -1,22 +1,17 @@
 #!/usr/bin/sh
 
-radio_dir=/mnt/data/appdata/radio
+radio_dir=/srv/radio
 
 case $1 in
     f | filelist)
-        tree -H '' -T "List – Arav's dwelling / Radio" \
+        tree -H '' -T "Arav's dwelling / Radio / List" \
             -P '*.ogg' --charset=utf-8 --prune --du -hnl \
             --nolinks -o $radio_dir/filelist.html $radio_dir/music
         break
         ;;
     p | playlist)
         find -L $radio_dir/music/* -type f -iname '*.ogg' |
-            cut -c 31- | sort -d > $radio_dir/playlists/all
+            cut -c 18- | sort -d > $radio_dir/playlists/all
-        break
-        ;;
-    ep | ez-playlist)
-        find -L $radio_dir/music/* -type f -iname '*.ogg' |
-            sort -d > $radio_dir/playlists/all
         break
         ;;
     s | shuffle)
@@ -28,39 +23,18 @@ case $1 in
             if [[ "$file" == *.ogg ]]; then
                 continue;
             fi
-            if [ -f "${file%.*}.ogg" ]; then
-                continue;
-            fi
             ffmpeg -hide_banner -i "$file" -y -vn -c:a libvorbis -b:a 128k "${file%.*}.ogg";
-            if [ $? -eq 0 ] && [ $3 = "del" ]; then
+            if [ $? -eq 0 ] && [ $2 = "del" ]; then
                 rm "$file";
             fi
         done
         break
         ;;
-    d | duration)
-        find $radio_dir/music -iname '*.ogg' -exec ffprobe -i "{}" \
-            -show_entries format=duration -v quiet -of csv="p=0" \; |
-            paste -s -d+ - | bc
-        break
-        ;;
-    er | ez-reload)
-        pkill -HUP ezstream
-        break
-        ;;
-    dr | dw-reload)
-        pkill -HUP dwelling-radio
-        break
-        ;;
     *)
         echo "f|ilelist - to generate a filelist.html"
         echo "p|laylist - to generate a playlist 'all'"
-        echo "ep|ez-playlist- - to generate a playlist 'all' with full paths"
         echo "s|huffle - to shuffle a playlist and store as all-rand"
         echo "c|onvert DIR - convert all files in DIR to ogg"
-        echo "d|uration - get total songs' duration"
-        echo "er|ez-reload - send SIGHUP to ezstream to reload a playlist"
-        echo "dr|dw-reload - send SIGHUP to dwelling-radio to reload a playlist"
         exit
         ;;
 esac

web/assets/css/main.css

@@ -11,7 +11,6 @@
 	--secondary-color: #9f2b68;
 	--text-color: #f5f5f5; 
 	--text-indent: 1.6rem;
-	color-scheme: light dark;
 	scrollbar-color: var(--primary-color) var(--background-color); }
 
 @media (prefers-color-scheme: light) {
@@ -27,16 +26,13 @@
 	background-color: var(--secondary-color);
 	color: var(--background-color); }
 
-.small { font-size: .8rem; }
-
-.small.player-links a { margin: 0 .2rem; }
-
 a,
 button {
 	color: var(--primary-color);
 	text-decoration: none; }
 
-a:hover {
+a:hover,
+button:hover {
 	color: var(--secondary-color);
 	cursor: pointer;
 	text-decoration: underline dotted;
@@ -44,7 +40,9 @@ a:hover {
 
 button {
 	background: none;
-	border: none; }
+	border: none;
+	font: inherit;
+	padding: 0; }
 
 p {
 	text-align: justify;
@@ -64,10 +62,24 @@ h2 {
 	font-size: 1.4rem;
 	margin: 1rem 0; }
 
+small { font-size: .8rem; }
+
+small.player-links a { margin: 0 .2rem; }
+
 audio {
 	background-color: var(--primary-color);
+	box-shadow: 5px 5px var(--primary-color);
 	width: 100%; }
 
+@media screen and (-webkit-min-device-pixel-ratio:0) {
+	audio::-webkit-media-controls-panel {
+		background-color: var(--secondary-color); }
+
+	audio { border-radius: 1.6rem; } }
+
+@-moz-document url-prefix() {
+	audio { border-radius: 0; } }
+
 html { margin-left: calc(100vw - 100%); }
 
 body {
@@ -84,73 +96,44 @@ header {
 	flex-wrap: wrap;
 	justify-content: space-between; }
 
-header svg text { fill: var(--text-color); }
+#logo {
+	display: block;
+	width: 360px; }
 
-header svg text:first-child {
+#logo text { fill: var(--text-color); }
-	font-size: 3.55rem;
+
+#logo .logo {
+	font-size: 2rem;
 	font-variant-caps: small-caps;
 	font-weight: bold; }
 
-header svg text:last-child { font-size: 1.5rem; }
+@media screen and (-webkit-min-device-pixel-ratio:0) {
+	#logo .logo { font-size: 2.082rem; } }
 
-@supports (-moz-appearance:none) {
+@-moz-document url-prefix() {
-	header svg text:last-child { transform: scale(.993, 1); } }
+	#logo .logo { font-size: 2rem; } }
 
-header nav {
+#logo .under { font-size: .88rem; }
-	display: flex;
-	flex-direction: column;
-	font-variant: small-caps;
-	justify-content: space-evenly; }
 
-header nav h1 {
+nav { margin-top: .5rem; }
+
+nav a { font-variant: small-caps; }
+
+nav h1 {
 	color: var(--secondary-color);
 	margin: 0; }
 
 section { margin-top: 1rem; }
 
-#banner { text-align: center; }
+#last-played {
-
-#player {
-	flex-direction: row;
-	align-items: center; }
-
-#player p { text-indent: 1rem; }
-
-#player img,
-button#radio-play {
-	filter: drop-shadow(0px 0px 4px var(--text-color));
-	height: 1rem;
-	padding: 0 .7rem; }
-
-button#radio-play {
-	background-image: url(/assets/img/play.svg);
-	height: 3rem;
-	min-width: 3rem;
-	width: 3rem; }
-
-input#radio-volume {
-	accent-color: var(--primary-color);
-	direction: rtl;
-	height: 4rem;
-	margin-left: .5rem;
-	writing-mode: vertical-lr; }
-
-#player div:first-child {
-	display: none;
-	flex-direction: row;
-	align-items: center; }
-
-#last-songs {
 	margin: 0 auto;
 	min-width: 80%;
 	width: 80%; }
 
-#last-songs :is(thead tr, tbody tr) {
+#last-played tbody tr {
 	display: grid;
 	gap: .5rem;
-	grid-template-columns: 3rem 3rem 1fr; }
+	grid-template-columns: 3rem 2rem 1fr; }
-
-#last-songs thead tr { font-weight: bold; }
 
 footer {
 	font-size: .8rem;
@@ -158,10 +141,12 @@ footer {
 	padding: 1rem 0; }
 
 @media screen and (max-width: 640px) {
-	header {
+	header { display: block; }
-		align-items: center;
-		flex-direction: column; }
 
-	header svg { width: 100%; }
+	#logo {
+		margin: 0 auto;
+		width: 100%; }
 
-	#player { flex-direction: column; } }
+	nav {
+		width: 100%;
+		text-align: center; } }

web/assets/img/duration.svg

@@ -1 +0,0 @@
-<svg version="1.1" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg"><circle cx="256" cy="272" r="221.19" fill="#9f2b68" stroke="#000" stroke-width="37.61"/><circle cx="259.01" cy="253.47" r="1.4062"/><path d="m332.82 405.5-72.697-150.72-84.181-65.471" fill="none" stroke="#000" stroke-width="30"/><circle cx="258.25" cy="47.49" r="1.4062"/><g fill="none" stroke="#000" stroke-width="30"><path d="m259.16 95.203-.17231-52.493"/><path d="m255.26 500.7-.17231-52.493"/><path d="m26.75 272.09 52.493-.17232"/><path d="m432.21 272.09 52.493-.17232"/></g></svg>

web/assets/img/favicon.svg

@@ -1 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <svg version="1.1" viewBox="0 0 574.17 258.67" xml:space="preserve" xmlns="http://www.w3.org/2000/svg"><g fill="#cd2682" aria-label="A'sD"><path d="m131.67 206.33h-66.833l-13 49.667h-51.833l75.833-242.67h44.833l76.333 242.67h-52.333zm-56.167-40.833h45.333l-22.667-86.5z" style="font-variant-caps:small-caps"/><path d="m226 24.667-4.8333 67.5h-30.667v-92.167h35.5z" style="font-variant-caps:small-caps"/><path d="m338.5 203.83q0-9.5-5.6667-15.333-5.5-5.8333-20.833-10.667-34.167-9.3333-47.333-22.833-13.167-13.667-13.167-38.5 0-25 17.667-41.167 17.667-16.167 45.833-16.167 31.5 0 50.167 16.5 18.833 16.333 18.833 44.167h-47q0-11-6-17.833-5.8333-6.8333-15.833-6.8333-8.8333 0-13.833 5.5-5 5.5-5 14 0 8 5.5 13.167 5.6667 5.1667 20.167 10.333 32.667 8.3333 47 23.167t14.333 41-17.333 41.333q-17.333 15-48 15-14.667 0-28.5-4.3333-13.667-4.3333-23.5-13-20-17.333-20-47.333h47.333q0 16.167 6 22.667 6 6.3333 21.167 6.3333 18 0 18-19.167z" style="font-variant-caps:small-caps"/><path d="m416.5 256v-242.67h64.167q42.5 0 67.667 27 25.333 27 25.833 74v39.333q0 47.833-25.333 75.167-25.167 27.167-69.5 27.167zm49-201.83v161.17h14.667q24.5 0 34.5-12.833 10-13 10.5-44.667v-42.167q0-34-9.5-47.333-9.5-13.5-32.333-14.167z" style="font-variant-caps:small-caps"/></g></svg>

web/assets/img/headphones.svg

@@ -1 +0,0 @@
-<svg version="1.1" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg"><g transform="matrix(1.1429 0 0 1.1429 -36.128 15.982)" stroke="#000" stroke-width="40" style="paint-order:normal"><path transform="scale(-1)" d="m-60.17-296.45a200.55 200.55 0 01-83.602 209.44 200.55 200.55 0 01-225.51-.71844 200.55 200.55 0 01-82.266-209.97" fill="none" style="paint-order:normal"/><path d="m459.59 316.81a44.801 97.191 0 01-44.801 97.191 44.801 97.191 0 01-44.801-97.19 44.801 97.191 0 0144.8-97.192 44.801 97.191 0 0144.802 97.189" fill="#9f2b68" style="paint-order:normal"/><path d="m51.611 316.81a44.801 97.191 0 0144.801-97.19 44.801 97.191 0 0144.801 97.191 44.801 97.191 0 01-44.801 97.19 44.801 97.191 0 01-44.801-97.191" fill="#9f2b68" style="paint-order:normal"/></g></svg>

web/assets/img/note.svg

@@ -1 +0,0 @@
-<svg version="1.1" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg"><path transform="matrix(.9978 .066276 -.61683 .78709 0 0)" d="m592.2 522.06c0 19.539-8.204 38.278-22.808 52.095-14.605 13.816-34.412 21.578-55.065 21.578s-40.46-7.762-55.064-21.578c-14.604-13.817-22.809-32.556-22.809-52.095 0-19.54 8.205-38.279 22.809-52.095 14.604-13.817 34.411-21.579 55.064-21.579 43.008 0 77.873 32.985 77.873 73.674z" fill="#9f2b68" stroke="#000" stroke-width="22.245"/><path d="m289.88 415.68c0 .503-.2.985-.555 1.341-.356.355-.838.555-1.341.555-1.046 0-1.895-.849-1.895-1.896 0-1.046.849-1.895 1.895-1.895.503 0 .985.2 1.341.555.355.356.555.838.555 1.34z" stroke-width="1.2638"/><path d="m281.19 408.95c0 1.047-.849 1.895-1.896 1.895s-1.896-.848-1.896-1.895c0-.503.2-.985.556-1.341.355-.355.837-.555 1.34-.555s.985.2 1.34.555c.356.356.556.838.556 1.341z" stroke-width="1.2638"/><path d="m280.73 32.078v384.56" fill="none" stroke="#000" stroke-width="27"/><path d="m293.03 52.222c77.939.0697 9.165 140.67 121.96 195.68" fill="none" stroke="#000" stroke-width="40.44"/></svg>

web/assets/img/play.svg

@@ -1 +0,0 @@
-<svg version="1.1" viewBox="0 0 17 17" xmlns="http://www.w3.org/2000/svg"><path d="m1.1317 1.8418v6.6254l-.0005522 6.6248 6.6353-3.3119 6.6348-3.3113-6.6348-3.3135z" fill="#9f2b68" stroke="#000" stroke-width="2"/></svg>

web/assets/img/stop.svg

@@ -1 +0,0 @@
-<svg version="1.1" viewBox="0 0 17 17" xmlns="http://www.w3.org/2000/svg"><rect x="1" y="1" width="14" height="14" fill="#9f2b68" stroke="#000" stroke-width="3"/></svg>

web/assets/js/main.js

@@ -1,92 +1,42 @@
-const $ = id => document.getElementById(id);
+function $(id) { return document.getElementById(id); }
 
-const formatDuration = date => `${date.getUTCHours() > 0 ? date.getUTCHours() + ":" : ""}${date.getUTCMinutes()}:${date.getUTCSeconds().toString().padStart(2, "0")}`;
+function updateRadioStatus() {
-const formatStartAt = date => `${date.getHours().toString().padStart(2, "0")}:${date.getMinutes().toString().padStart(2, "0")}`;
+	fetch("/status")
-
+	.then(r => r.json())
-let cursong_startat = null;
+	.then(r => {
-let cursong_duration_msec = 0;
+		$("radio-status").innerHTML = 
-
+			`On-air since <time datetime="${r.server_start_iso8601}">${r.server_start_date}</time>`;
-async function updateStatus() {
+		$("radio-song").textContent = r.song;
-	const resp = await fetch("/api/status");
+		$("radio-listeners").textContent = r.listeners;
-
+		$("radio-listener-peak").textContent = r.listener_peak;
-	if (!resp.ok || 200 != resp.status) {
+	}).catch(() => {
-		$("radio-song").textContent =
+		$("radio-status").textContent = "Radio is offline.";
-			$("radio-duration-estimate").textContent =
+		$("radio-song").textContent = "";
-				$("radio-duration").textContent = "";
+		$("radio-listeners").textContent =
-		$("radio-listeners").textContent = "0";
+			$("radio-listener-peak").textContent = "0";
-		$("last-songs").lastChild.remove();
+	});
-		return [-1, null];
-	}
-
-	const s = await resp.json();
-
-	if (undefined != s.last_songs) {
-		$("last-songs").lastChild.remove();
-		$("last-songs").appendChild(document.createElement("tbody"));
-		for (let i = 0; i < s.last_songs.length; ++i) {
-			let row = $("last-songs").lastChild.insertRow();
-			row.insertCell().appendChild(document.createTextNode(formatStartAt(new Date(s.last_songs[i].start_at))));
-			row.insertCell().appendChild(document.createTextNode((s.last_songs[i].listeners == undefined ? "" : s.last_songs[i].listeners + "/") + (s.last_songs[i].peak_listeners == undefined ? "" : s.last_songs[i].peak_listeners)));
-			row.insertCell().appendChild(document.createTextNode(`${s.last_songs[i].artist} - ${s.last_songs[i].title}`));
-		}
-	}
-
-	if (undefined == s.current_song || undefined == s.current_song.duration_msec)
-		return [-1, null];
-
-	$("radio-song").textContent = `${s.current_song.artist} - ${s.current_song.title}`;
-	$("radio-listeners").textContent = s.listeners;
-	$("radio-duration").textContent = formatDuration(new Date(s.current_song.duration_msec));
-
-	return [s.current_song.duration_msec, new Date(s.current_song.start_at)];
 }
 
-async function update() {
+function updateLastPlayedSong() {
-	if (null === cursong_startat)
+	fetch('/lastsong')
-		return -1;
+	.then(r => r.json())
+	.then(last_played => {
+		if (last_played.time == $('last-played').firstChild.lastChild.firstChild.innerText)
+			return;
 
-	const estimate = (new Date()) - (new Date(cursong_startat));
+		$('last-played').firstChild.firstChild.remove();
-	if (estimate >= cursong_duration_msec) {
-		return 1;
-	}
 
-	$("radio-duration-estimate").textContent = `${formatDuration(new Date(estimate))} / `;
+		let row = $('last-played').insertRow();
-	return 0;
+		row.insertCell().appendChild(document.createTextNode(last_played.time));
+		row.insertCell().appendChild(document.createTextNode(last_played.listeners == 0 ? "" : last_played.listeners));
+		row.insertCell().appendChild(document.createTextNode(last_played.song));
+	});
 }
 
-let update_interval_id = null;
+document.getElementById("btn-update").addEventListener("click", () => {
-async function interval() {
+	updateLastPlayedSong();
-	switch (await update()) {
+	updateRadioStatus();
-		case 1:
+})
-			[cursong_duration_msec, cursong_startat] = await updateStatus();
-			break;
-		case -1:
-			clearInterval(update_interval_id);
-			await new Promise(resolve => setTimeout(resolve, 5000));
-			[cursong_duration_msec, cursong_startat] = await updateStatus();
-			update_interval_id = setInterval(interval, 1000);
-	}
-}
 
-updateStatus().then(r => [cursong_duration_msec, cursong_startat] = r);
+setInterval(updateRadioStatus, 45000);
-update_interval_id = setInterval(interval, 1000);
+setInterval(updateLastPlayedSong, 45000);
-
-
-
-const audio = document.getElementsByTagName("audio")[0];
-audio.hidden = true;
-const audio_src = audio.childNodes[0].src;
-
-const volume = $("radio-volume");
-volume.value = +(localStorage.getItem("volume") || 50);
-audio.volume = volume.value / 100.0;
-volume.addEventListener("input", e => {
-	audio.volume = e.target.value / 100.0;
-	localStorage.setItem("volume", e.target.value); });
-
-$("player").style.display = $("player").firstChild.style.display = "flex";
-
-$("radio-play").addEventListener("click", e => {
-	audio.paused ? (audio.src = audio_src) && audio.play() : audio.src = "";
-	e.target.style.backgroundImage = audio.paused ?
-		"url(/assets/img/play.svg)" : "url(/assets/img/stop.svg)"; });

web/assets/robots.txt

@@ -1,3 +0,0 @@
-User-agent: *
-Disallow: /assets/
-Disallow: /live/

web/assets/sitemap.xml

@@ -1,15 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
-    <url>
-        <loc>https://radio.arav.su/</loc>
-        <lastmod>2024-03-06</lastmod>
-    </url>
-    <url>
-        <loc>https://radio.arav.su/filelist</loc>
-        <changefreq>always</changefreq>
-    </url>
-        <url>
-        <loc>https://radio.arav.su/playlist</loc>
-        <lastmod>2023-02-23</lastmod>
-    </url>
-</urlset>

web/index.templ

@@ -1,129 +0,0 @@
-package web
-
-import "net/http"
-import "strconv"
-
-import "github.com/invopop/ctxi18n/i18n"
-
-import "dwelling-radio/internal/radio"
-import "dwelling-radio/pkg/utils"
-
-templ Index(prgVer string, curSong *radio.Song, sl []radio.Song, slLen int64, lstnrs *radio.ListenerCounter, r *http.Request) {
-<!DOCTYPE html>
-<html lang={ i18n.GetLocale(ctx).Code().String() }>
-<head>
-	<meta charset="utf-8" />
-	<meta http-equiv="X-UA-Compatible" content="IE=edge" />
-	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
-	<meta name="theme-color" content="#cd2682" />
-	<meta name="color-scheme" content="light dark" />
-
-	<title>Arav's dwelling / { i18n.T(ctx, "title") }</title>
-
-	<meta name="author" content={ "Alexander \"Arav\" Andreev" } />
-	<meta name="description" content={ i18n.T(ctx, "description") } />
-	<meta name="keywords" content={ i18n.T(ctx, "keywords") } />
-
-	<link rel="canonical" href={ utils.Site(r.Host) } />
-
-	<link rel="icon" href="/assets/img/favicon.svg" sizes="any" type="image/svg+xml" />
-	<link rel="stylesheet" href="/assets/css/main.css" />
-
-	<script src="/assets/js/main.js" defer />
-</head>
-<body>
-	<header>
-		<svg width="360" viewBox="0 -36 360 66">
-			<text y="7" textLength="360" lengthAdjust="spacingAndGlyphs">Arav's dwelling</text>
-			<text y="25" textLength="360" lengthAdjust="spacingAndGlyphs">Welcome to my sacred place, wanderer</text>
-		</svg>
-		<nav>
-			<a href={ templ.SafeURL(utils.MainSite(r.Host)) }>{ i18n.T(ctx, "back-home") }</a>
-			<h1>{ i18n.T(ctx, "title") }</h1>
-		</nav>
-	</header>
-	<section id="banner">
-		<video playsinline autoplay loop muted>
-			<source src="/assets/img/stopit.mp4" type="video/mp4" />
-		</video>
-	</section>
-	<section>
-		<div class="small player-links">
-			<a href="/filelist">{ i18n.T(ctx, "link.filelist") }</a>
-			<a href="/playlist">{ i18n.T(ctx, "link.playlist") }</a>
-			<a href="/live/stream.ogg">{ i18n.T(ctx, "link.direct-link") }</a>
-			(<a href="http://radio.arav.su:8000/stream.ogg">http</a>
-			<a href="http://wsmkgnmhmzqm7kyzv7jnzzafvgm7xlmlfvzhgorpapd5or2arnhuktqd.onion/live/stream.ogg">Tor</a>
-			<a href="http://radio.arav.i2p/live/stream.ogg">I2P</a>
-			<a href="http://[300:a98d:d6d0:8a08::e]/live/stream.ogg">Ygg</a>)
-			<a href="https://dir.xiph.org/search?q=arav's+dwelling">Xiph</a>
-			| OGG 128 Kb/s
-		</div>
-		<div id="player">
-			<div>
-				<button id="radio-play" />
-				<input id="radio-volume" type="range" min="0" max="100" orient="vertical" />
-			</div>
-			<audio preload="none" controls playsinline>
-				<source src="/live/stream.ogg" type="audio/ogg" />
-				{ i18n.T(ctx, "no-audio-tag") } <a href="/playlist">{ i18n.T(ctx, "link.playlist") }</a>.
-			</audio>
-			<div>
-				<p>
-					<img src="/assets/img/headphones.svg" alt="Listeners" title="Listeners" />
-					<span id="radio-listeners">{ strconv.FormatInt(lstnrs.Current(), 10) }</span>
-					<img src="/assets/img/duration.svg" alt="Duration" title="Duration" />
-					<span id="radio-duration-estimate"></span>
-					<span id="radio-duration">
-						if curSong != nil && curSong.Artist != "" {
-							{ curSong.DurationString() }
-						} else {
-							0:00
-						}
-					</span>
-				</p>
-				<p>
-					<img src="/assets/img/note.svg" alt="Song" title="Song" />
-					<span id="radio-song">
-						if curSong != nil && curSong.Artist != "" {
-							{ curSong.Artist } - { curSong.Title }
-						}
-					</span>
-				</p>
-			</div>
-		</div>
-	</section>
-	<section>
-		<h2>{ i18n.T(ctx, "last-songs.h", i18n.M{"n": strconv.FormatInt(slLen, 10)}) }</h2>
-		<table id="last-songs">
-			<thead class="small">
-				<tr>
-					<td>{ i18n.T(ctx, "last-songs.tab-start") }</td>
-					<td><abbr title={ i18n.T(ctx, "last-songs.tab-stat-tip") }>{ i18n.T(ctx, "last-songs.tab-stat") }</abbr></td>
-					<td>{ i18n.T(ctx, "last-songs.tab-song") }</td>
-				</tr>
-			</thead>
-			<tbody>
-				for _, song := range sl {
-					<tr>
-						<td>{ utils.ToClientTimezone(song.StartAt, r).Format("15:04") }</td>
-						<td>
-							if song.PeakListeners != 0 {
-								{ strconv.FormatInt(song.Listeners, 10) }/{ strconv.FormatInt(song.PeakListeners, 10) }
-							}
-						</td>
-						<td>{ song.Artist } - { song.Title }</td>
-					</tr>
-				}
-			</tbody>
-		</table>
-	</section>
-	<footer>
-		<a href="?lang=ru">рус</a>
-		<a href="?lang=en">eng</a>
-		<br/>
-		v{ prgVer } 2017&mdash;2024 { i18n.T(ctx, "footer.author") } &lt;<a href="mailto:me@arav.su">me@arav.su</a>&gt; <a href={ templ.SafeURL(utils.MainSite(r.Host) + "/privacy") }>{ i18n.T(ctx, "footer.privacy") }</a>
-	</footer>
-</body>
-</html>
-}

web/jade.go

@@ -0,0 +1,141 @@
+// Code generated by "jade.go"; DO NOT EDIT.
+package web
+
+import (
+	"bytes"
+	"io"
+	"strconv"
+)
+
+var (
+	escaped   = []byte{'<', '>', '"', '\'', '&'}
+	replacing = []string{"&lt;", "&gt;", "&#34;", "&#39;", "&amp;"}
+)
+
+func WriteEscString(st string, buffer *WriterAsBuffer) {
+	for i := 0; i < len(st); i++ {
+		if n := bytes.IndexByte(escaped, st[i]); n >= 0 {
+			buffer.WriteString(replacing[n])
+		} else {
+			buffer.WriteByte(st[i])
+		}
+	}
+}
+
+type WriterAsBuffer struct {
+	io.Writer
+}
+
+func (w *WriterAsBuffer) WriteString(s string) (n int, err error) {
+	n, err = w.Write([]byte(s))
+	return
+}
+
+func (w *WriterAsBuffer) WriteByte(b byte) (err error) {
+	_, err = w.Write([]byte{b})
+	return
+}
+
+type stringer interface {
+	String() string
+}
+
+func WriteAll(a interface{}, escape bool, buffer *WriterAsBuffer) {
+	switch v := a.(type) {
+	case string:
+		if escape {
+			WriteEscString(v, buffer)
+		} else {
+			buffer.WriteString(v)
+		}
+	case int:
+		WriteInt(int64(v), buffer)
+	case int8:
+		WriteInt(int64(v), buffer)
+	case int16:
+		WriteInt(int64(v), buffer)
+	case int32:
+		WriteInt(int64(v), buffer)
+	case int64:
+		WriteInt(v, buffer)
+	case uint:
+		WriteUint(uint64(v), buffer)
+	case uint8:
+		WriteUint(uint64(v), buffer)
+	case uint16:
+		WriteUint(uint64(v), buffer)
+	case uint32:
+		WriteUint(uint64(v), buffer)
+	case uint64:
+		WriteUint(v, buffer)
+	case float32:
+		buffer.WriteString(strconv.FormatFloat(float64(v), 'f', -1, 64))
+	case float64:
+		buffer.WriteString(strconv.FormatFloat(v, 'f', -1, 64))
+	case bool:
+		WriteBool(v, buffer)
+	case stringer:
+		if escape {
+			WriteEscString(v.String(), buffer)
+		} else {
+			buffer.WriteString(v.String())
+		}
+	default:
+		buffer.WriteString("\n<<< unprinted type, fmt.Stringer implementation needed >>>\n")
+	}
+}
+
+func ternary(condition bool, iftrue, iffalse interface{}) interface{} {
+	if condition {
+		return iftrue
+	} else {
+		return iffalse
+	}
+}
+
+// Used part of go source:
+// https://github.com/golang/go/blob/master/src/strconv/itoa.go
+func WriteUint(u uint64, buffer *WriterAsBuffer) {
+	var a [64 + 1]byte
+	i := len(a)
+
+	if ^uintptr(0)>>32 == 0 {
+		for u > uint64(^uintptr(0)) {
+			q := u / 1e9
+			us := uintptr(u - q*1e9)
+			for j := 9; j > 0; j-- {
+				i--
+				qs := us / 10
+				a[i] = byte(us - qs*10 + '0')
+				us = qs
+			}
+			u = q
+		}
+	}
+
+	us := uintptr(u)
+	for us >= 10 {
+		i--
+		q := us / 10
+		a[i] = byte(us - q*10 + '0')
+		us = q
+	}
+
+	i--
+	a[i] = byte(us + '0')
+	buffer.Write(a[i:])
+}
+func WriteInt(i int64, buffer *WriterAsBuffer) {
+	if i < 0 {
+		buffer.WriteByte('-')
+		i = -i
+	}
+	WriteUint(uint64(i), buffer)
+}
+func WriteBool(b bool, buffer *WriterAsBuffer) {
+	if b {
+		buffer.WriteString("true")
+		return
+	}
+	buffer.WriteString("false")
+}

web/locales/en/en.yaml

@@ -1,19 +0,0 @@
-en:
-  title: Radio
-  description: Internet-radio broadcasting from under my desk.
-  keywords: self-host radio home-radio various music
-  back-home: Back home
-  link:
-    filelist: filelist
-    playlist: playlist
-    direct-link: direct link
-  no-audio-tag: Seems like your browser doesn't support an audio element, but you can grab the
-  last-songs:
-    h: Last %{n} songs
-    tab-start: Start
-    tab-stat: O/P
-    tab-stat-tip: Overall/Peak listeners
-    tab-song: Song
-  footer:
-    author: Alexander ❝Arav❞ Andreev
-    privacy: Privacy statements

web/locales/locales.go

@@ -1,7 +0,0 @@
-package locales
-
-import "embed"
-
-//go:embed en
-//go:embed ru
-var Content embed.FS

web/locales/ru/ru.yaml

@@ -1,19 +0,0 @@
-ru:
-  title: Радио
-  description: Интернет-радио вещающееся из-под моего стола.
-  keywords: само-хост селф-хост радио разное музыка
-  back-home: Назад домой
-  link:
-    filelist: список файлов
-    playlist: плейлист
-    direct-link: прямая ссылка
-  no-audio-tag: Похоже на то, что твой браузер не поддерживает audio элемент, хреновенько, но можешь взять
-  last-songs:
-    h: Последние %{n} песен
-    tab-start: Начало
-    tab-stat: В/П
-    tab-stat-tip: Всего/Пиковое кол-во слушателей
-    tab-song: Песня
-  footer:
-    author: Александр «Arav» Андреев
-    privacy: О приватности

web/templates/index.pug

@@ -0,0 +1,63 @@
+:go:func Index(mainSite string, songsNum int, status *radio.IcecastStatus, songs *[]radio.Song)
+
+:go:import "dwelling-radio/internal/radio"
+
+doctype html
+html(lang='en')
+    head
+        title Arav's dwelling / Radio
+        meta(charset='utf-8')
+        meta(http-equiv='X-UA-Compatible' content='IE=edge')
+        meta(name='viewport' content='width=device-width, initial-scale=1.0')
+        meta(name='theme-color' content='#cd2682')
+        meta(name='description' content='Internet-radio broadcasting from under my desk.')
+        link(rel='icon' href='/assets/img/favicon.svg' sizes='any' type='image/svg+xml')
+        link(href='/assets/css/main.css' rel='stylesheet')
+        script(src='/assets/js/main.js' defer='')
+    body
+        header
+            svg#logo(viewBox='0 -25 216 40')
+                text.logo Arav's dwelling
+                text.under(y='11') Welcome to my sacred place, wanderer
+            nav
+                a(href=mainSite) Back to main website
+                h1 Radio
+        section
+            small.player-links
+                a(href='/filelist') filelist
+                a(href='/playlist') playlist (.m3u)
+                a(href='/live/stream.ogg') direct link
+                a(href='http://radio.arav.su:8000/stream.ogg') direct link (http)
+                a(href='http://wsmkgnmhmzqm7kyzv7jnzzafvgm7xlmlfvzhgorpapd5or2arnhuktqd.onion/live/stream.ogg') direct link (Tor)
+                a(href='http://radio.arav.i2p/live/stream.ogg') direct link (I2P)
+                a(href="https://dir.xiph.org/search?q=arav's+dwelling") Xiph
+                | OGG 128 Kb/s
+            audio(preload='none' controls='')
+                source(src='/live/stream.ogg' type='audio/ogg')
+                | Your browser doesn't support an audio element, it's sad... But you always can take the #[a(href='/playlist') playlist]!
+            if status.ServerStartDate != ""
+                p#radio-status On-air since 
+                    time(datetime=status.ServerStartISO8601)= status.ServerStartDate
+            else
+                p#radio-status Radio is offline.
+            p Now playing: #[span#radio-song #{status.SongName}]
+            p Current/peak listeners: #[span#radio-listeners #{status.Listeners}] / #[span#radio-listener-peak #{status.ListenerPeak}]
+            p
+                small Notice: information updates every 45 seconds. But you can #[button(id='btn-update') update] it forcibly.
+        if len(*songs) > 0
+            section
+                h2 Last #{songsNum} songs
+                table#last-played
+                    each song in *songs
+                        tr
+                            td= song.Time
+                            if song.Listeners != "0"
+                                td= song.Listeners
+                            else
+                                td
+                            td= song.Song
+        section
+            h2 Privacy statements
+            p Logs are collected and include access date and time, IP-address, User-Agent, referer URL, request. This website makes use of JavaScript to update a radio status and last 10 songs list.
+        footer
+            | 2017—2023 Arav <#[a(href='mailto:me@arav.su') me@arav.su]>

web/web.go

@@ -6,6 +6,9 @@ import (
 	"net/http"
 )
 
+// To install a Jade compiler: go install github.com/Joker/jade/cmd/jade@latest
+//go:generate $GOPATH/bin/jade -pkg=web -stdbuf -stdlib -writer templates/index.pug
+
 //go:embed assets
 var assetsDir embed.FS
 
@@ -14,21 +17,6 @@ func Assets() http.FileSystem {
 	return http.FS(f)
 }
 
-func ServeAsset(path, mime, attachement string) func(http.ResponseWriter, *http.Request) {
+func AssetsGetFile(path string) ([]byte, error) {
-	return func(w http.ResponseWriter, r *http.Request) {
+	return assetsDir.ReadFile("assets/" + path)
-		if mime != "" {
-			w.Header().Add("Content-Type", mime)
-		}
-
-		if attachement != "" {
-			w.Header().Add("Content-Disposition", "attachment; filename=\""+attachement+"\"")
-		}
-
-		data, err := assetsDir.ReadFile("assets/" + path)
-		if err != nil {
-			panic(err)
-		}
-
-		w.Write(data)
-	}
 }