Enable streaming TTS to Sonos

app/src/main/AndroidManifest.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="io.bartek">
 
     <permission
@@ -8,6 +9,7 @@
         android:label="@string/permission_http_server_label"
         android:protectionLevel="normal" />
 
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.WAKE_LOCK" />
@@ -20,7 +22,8 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme"
-        android:usesCleartextTraffic="true">
+        android:usesCleartextTraffic="true"
+        tools:targetApi="m">
         <activity
             android:name="io.bartek.ttsserver.help.HelpActivity"
             android:parentActivityName=".ttsserver.MainActivity" />

app/src/main/java/io/bartek/ttsserver/network/NetworkUtil.kt

@@ -0,0 +1,22 @@
+package io.bartek.ttsserver.network
+
+import android.content.Context
+import android.content.Context.WIFI_SERVICE
+import android.net.wifi.WifiManager
+import java.net.InetAddress
+
+
+object NetworkUtil {
+   fun getIpAddress(context: Context): String {
+      return (context.getApplicationContext().getSystemService(WIFI_SERVICE) as WifiManager).let {
+         inetAddress(it.dhcpInfo.ipAddress).toString().substring(1)
+      }
+   }
+
+   private fun inetAddress(hostAddress: Int) = byteArrayOf(
+      (0xff and hostAddress).toByte(),
+      (0xff and (hostAddress shr 8)).toByte(),
+      (0xff and (hostAddress shr 16)).toByte(),
+      (0xff and (hostAddress shr 24)).toByte()
+   ).let { InetAddress.getByAddress(it) }
+}

app/src/main/java/io/bartek/ttsserver/sonos/SonosController.kt

@@ -0,0 +1,17 @@
+package io.bartek.ttsserver.sonos
+
+import com.vmichalak.sonoscontroller.SonosDiscovery
+import java.io.File
+
+class SonosController(private val host: String, private val port: Int) {
+   fun clip(wave: File, zone: String, volume: Int) {
+      SonosDiscovery.discover().firstOrNull { it.zoneGroupState.name == zone }?.let {
+         val filename = wave.name
+         val url = "http://$host:$port/sonos/$filename"
+         val currentVolume = it.volume
+         it.volume = volume
+         it.clip(url, "")
+         it.volume = currentVolume
+      }
+   }
+}

app/src/main/java/io/bartek/ttsserver/web/SonosTTSRequestData.kt

@@ -0,0 +1,30 @@
+package io.bartek.ttsserver.web
+
+import fi.iki.elonen.NanoHTTPD
+import fi.iki.elonen.NanoHTTPD.ResponseException
+import org.json.JSONObject
+import java.util.*
+
+data class SonosTTSRequestData(val text: String, val language: Locale, val zone: String, val volume: Int) {
+   companion object {
+      fun fromJSON(json: String): SonosTTSRequestData {
+         val root = JSONObject(json)
+
+         val language = root.optString("language")
+            .takeIf { it.isNotBlank() }
+            ?.let { Locale(it) }
+            ?: Locale.US
+         val text = root.optString("text") ?: throw ResponseException(
+            NanoHTTPD.Response.Status.BAD_REQUEST,
+            ""
+         )
+         val zone = root.optString("zone") ?: throw ResponseException(
+            NanoHTTPD.Response.Status.BAD_REQUEST,
+            ""
+         )
+         val volume = root.optInt("volume", 50)
+
+         return SonosTTSRequestData(text, language, zone, volume)
+      }
+   }
+}

app/src/main/java/io/bartek/ttsserver/web/TTSRequestData.kt

@@ -0,0 +1,25 @@
+package io.bartek.ttsserver.web
+
+import fi.iki.elonen.NanoHTTPD
+import fi.iki.elonen.NanoHTTPD.ResponseException
+import org.json.JSONObject
+import java.util.*
+
+data class TTSRequestData(val text: String, val language: Locale) {
+   companion object {
+      fun fromJSON(json: String): TTSRequestData {
+         val root = JSONObject(json)
+
+         val language = root.optString("language")
+            .takeIf { it.isNotBlank() }
+            ?.let { Locale(it) }
+            ?: Locale.US
+         val text = root.optString("text") ?: throw ResponseException(
+            NanoHTTPD.Response.Status.BAD_REQUEST,
+            ""
+         )
+
+         return TTSRequestData(text, language)
+      }
+   }
+}

app/src/main/java/io/bartek/ttsserver/web/WebServer.kt

@@ -8,17 +8,15 @@ import androidx.localbroadcastmanager.content.LocalBroadcastManager
 import androidx.preference.PreferenceManager
 import fi.iki.elonen.NanoHTTPD
 import fi.iki.elonen.NanoHTTPD.Response.Status.*
+import io.bartek.ttsserver.network.NetworkUtil
 import io.bartek.ttsserver.preference.PreferenceKey
 import io.bartek.ttsserver.service.ForegroundService
 import io.bartek.ttsserver.service.ServiceState
+import io.bartek.ttsserver.sonos.SonosController
 import io.bartek.ttsserver.tts.TTS
-import org.json.JSONObject
 import java.io.BufferedInputStream
 import java.io.File
 import java.io.FileInputStream
-import java.util.*
-
-private data class TTSRequestData(val text: String, val language: Locale)
 
 
 class WebServer(port: Int, private val context: Context) : NanoHTTPD(port),
@@ -26,6 +24,7 @@ class WebServer(port: Int, private val context: Context) : NanoHTTPD(port),
    private val preferences = PreferenceManager.getDefaultSharedPreferences(context)
    private val tts = TTS(context, this)
    private val endpoints = Endpoints()
+   private val sonos = SonosController(NetworkUtil.getIpAddress(context), port)
 
    override fun serve(session: IHTTPSession?): Response {
       try {
@@ -47,9 +46,10 @@ class WebServer(port: Int, private val context: Context) : NanoHTTPD(port),
       }
    }
 
-   private fun sonos(session: IHTTPSession): Response {
-//      SonosDiscovery.discover().firstOrNull { it.zoneGroupState.name == "Salon" }
-//         ?.play()
+   private fun say(session: IHTTPSession): Response {
+      if (!preferences.getBoolean(PreferenceKey.ENABLE_SAY_ENDPOINT, true)) {
+         throw ResponseException(NOT_FOUND, "")
+      }
 
       if (session.method != Method.POST) {
          throw ResponseException(METHOD_NOT_ALLOWED, "")
@@ -59,9 +59,52 @@ class WebServer(port: Int, private val context: Context) : NanoHTTPD(port),
          throw ResponseException(BAD_REQUEST, "")
       }
 
-      val (text, language) = getRequestData(session)
+      val (text, language) = extractBody(session) { TTSRequestData.fromJSON(it) }
+
+      tts.performTTS(text, language)
+      return newFixedLengthResponse(OK, MIME_PLAINTEXT, "")
+   }
+
+   private fun <T> extractBody(session: IHTTPSession, provider: (String) -> T): T {
+      return mutableMapOf<String, String>().let {
+         session.parseBody(it)
+         provider(it["postData"] ?: "{}")
+      }
+   }
+
+   private fun wave(session: IHTTPSession): Response {
+      if (!preferences.getBoolean(PreferenceKey.ENABLE_WAVE_ENDPOINT, true)) {
+         throw ResponseException(NOT_FOUND, "")
+      }
+
+      if (session.method != Method.POST) {
+         throw ResponseException(METHOD_NOT_ALLOWED, "")
+      }
+
+      if (session.headers[CONTENT_TYPE]?.let { it != MIME_JSON } != false) {
+         throw ResponseException(BAD_REQUEST, "")
+      }
+
+      val (text, language) = extractBody(session) { TTSRequestData.fromJSON(it) }
+
+      val (stream, size) = tts.fetchTTSStream(text, language)
+      return newFixedLengthResponse(OK, MIME_WAVE, stream, size)
+   }
+
+   private fun sonos(session: IHTTPSession): Response {
+      if (session.method != Method.POST) {
+         throw ResponseException(METHOD_NOT_ALLOWED, "")
+      }
+
+      if (session.headers[CONTENT_TYPE]?.let { it != MIME_JSON } != false) {
+         throw ResponseException(BAD_REQUEST, "")
+      }
+
+      val (text, language, zone, volume) = extractBody(session) { SonosTTSRequestData.fromJSON(it) }
+
       val file = tts.createTTSFile(text, language)
-      return newFixedLengthResponse(file.toString())
+      sonos.clip(file, zone, volume)
+      return newFixedLengthResponse("")
    }
 
    private fun sonosCache(session: IHTTPSession): Response {
@@ -81,54 +124,6 @@ class WebServer(port: Int, private val context: Context) : NanoHTTPD(port),
       return newFixedLengthResponse(OK, MIME_WAVE, stream, size)
    }
 
-   private fun wave(session: IHTTPSession): Response {
-      if (!preferences.getBoolean(PreferenceKey.ENABLE_WAVE_ENDPOINT, true)) {
-         throw ResponseException(NOT_FOUND, "")
-      }
-
-      if (session.method != Method.POST) {
-         throw ResponseException(METHOD_NOT_ALLOWED, "")
-      }
-
-      if (session.headers[CONTENT_TYPE]?.let { it != MIME_JSON } != false) {
-         throw ResponseException(BAD_REQUEST, "")
-      }
-
-      val (text, language) = getRequestData(session)
-      val (stream, size) = tts.fetchTTSStream(text, language)
-      return newFixedLengthResponse(OK, MIME_WAVE, stream, size)
-   }
-
-   private fun say(session: IHTTPSession): Response {
-      if (!preferences.getBoolean(PreferenceKey.ENABLE_SAY_ENDPOINT, true)) {
-         throw ResponseException(NOT_FOUND, "")
-      }
-
-      if (session.method != Method.POST) {
-         throw ResponseException(METHOD_NOT_ALLOWED, "")
-      }
-
-      if (session.headers[CONTENT_TYPE]?.let { it != MIME_JSON } != false) {
-         throw ResponseException(BAD_REQUEST, "")
-      }
-
-      val (text, language) = getRequestData(session)
-      tts.performTTS(text, language)
-      return newFixedLengthResponse(OK, MIME_PLAINTEXT, "")
-   }
-
-   private fun getRequestData(session: IHTTPSession): TTSRequestData {
-      val map = mutableMapOf<String, String>()
-      session.parseBody(map)
-      val json = JSONObject(map["postData"] ?: "{}")
-      val language = json.optString("language")
-         .takeIf { it.isNotBlank() }
-         ?.let { Locale(it) }
-         ?: Locale.US
-      val text = json.optString("text") ?: throw ResponseException(BAD_REQUEST, "")
-      return TTSRequestData(text, language)
-   }
-
    override fun onInit(status: Int) = start()
 
    override fun start() {