Merge pull request #21 from Xcreen/implement_nsd

Implement nsd

Author: Xcreen

app/src/main/java/net/xcreen/restsms/MainActivity.kt

@@ -54,7 +54,7 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
             //Set Home Fragment
             val fragmentTransaction = supportFragmentManager.beginTransaction()
             try {
-                val homeFragment: Fragment = HomeFragment::class.java.newInstance()
+                val homeFragment: Fragment = HomeFragment::class.java.getDeclaredConstructor().newInstance()
                 fragmentTransaction.replace(R.id.main_framelayout, homeFragment).commit()
             } catch (ex: Exception) {
                 ex.printStackTrace()

app/src/main/java/net/xcreen/restsms/fragments/SettingsFragment.kt

@@ -24,6 +24,7 @@ class SettingsFragment : Fragment() {
         val openBrowserCheckBox = rootView.findViewById<CheckBox>(R.id.settings_open_browser_checkbox)
         val disableLoggingCheckBox = rootView.findViewById<CheckBox>(R.id.settings_disable_logging_checkbox)
         val enableAuth = rootView.findViewById<CheckBox>(R.id.settings_enable_auth)
+        val enableNSD = rootView.findViewById<CheckBox>(R.id.settings_enable_nsd)
         val saveBtn = rootView.findViewById<Button>(R.id.settings_save_btn)
         saveBtn.setOnClickListener { v ->
             var saved = false
@@ -58,6 +59,9 @@ class SettingsFragment : Fragment() {
             //Save Enable authentication
             editor.putBoolean("enable_auth", enableAuth.isChecked)
             editor.apply()
+            //Save Enable NSD
+            editor.putBoolean("enable_nsd", enableNSD.isChecked)
+            editor.apply()
             if (saved) {
                 Toast.makeText(v.context, resources.getText(R.string.setting_saved), Toast.LENGTH_SHORT).show()
             }
@@ -78,6 +82,10 @@ class SettingsFragment : Fragment() {
         if (sharedPref.getBoolean("enable_auth", false)) {
             enableAuth.isChecked = true
         }
+        //Set current "NSD"-Option
+        if (sharedPref.getBoolean("enable_nsd", false)) {
+            enableNSD.isChecked = true
+        }
         return rootView
     }
 }

app/src/main/java/net/xcreen/restsms/server/SMSServer.kt

@@ -1,16 +1,24 @@
 package net.xcreen.restsms.server
 
+import android.content.Context
+import android.net.nsd.NsdManager
+import android.net.nsd.NsdServiceInfo
+import android.util.Log
+import net.xcreen.restsms.AppContext
 import org.eclipse.jetty.server.Server
 import org.eclipse.jetty.servlet.ServletContextHandler
 import org.eclipse.jetty.servlet.ServletHolder
 import javax.servlet.MultipartConfigElement
 
 class SMSServer {
     var port = 8080
+    var startNSD = false
     var goodToken = ""
     var authEnabled = false
     private var jettyServer: Server? = null
-
+    private var nsdManager: NsdManager? = null
+    private var nsdRegistrationListener: NsdManager.RegistrationListener? = null
+    private val TAG = "SMSServer"
     /**
      * Get Server-Logger
      * @return serverLogging - ServerLogging-Object
@@ -38,6 +46,39 @@ class SMSServer {
         servletContextHandler.addServlet(smsWelcomeServletHolder, "/")
         jettyServer!!.handler = servletContextHandler
 
+        //Start NSD
+        val nsdServiceInfo = NsdServiceInfo()
+        nsdServiceInfo.serviceName = "RestSMS"
+        nsdServiceInfo.serviceType = "_http._tcp."
+        nsdServiceInfo.port = port
+
+        nsdManager = AppContext.appContext.getSystemService(Context.NSD_SERVICE) as NsdManager
+
+        nsdRegistrationListener = object : NsdManager.RegistrationListener {
+            override fun onServiceRegistered(serviceInfo: NsdServiceInfo) {
+                val registeredName = serviceInfo.serviceName
+                Log.i(TAG, "NSD Service registered: $registeredName")
+                serverLogging!!.log("info", "NSD Service registered: $registeredName")
+            }
+
+            override fun onRegistrationFailed(serviceInfo: NsdServiceInfo, errorCode: Int) {
+                Log.e(TAG, "NSD Service registration failed: $errorCode")
+                serverLogging!!.log("error", "NSD Service registration failed: $errorCode")
+            }
+
+            override fun onServiceUnregistered(serviceInfo: NsdServiceInfo) {
+                Log.i(TAG, "NSD Service unregistered.")
+                serverLogging!!.log("info", "NSD Service unregistered.")
+            }
+
+            override fun onUnregistrationFailed(serviceInfo: NsdServiceInfo, errorCode: Int) {
+                Log.e(TAG, "NSD Service unregistration failed: $errorCode")
+                serverLogging!!.log("error", "NSD Service unregistration failed: $errorCode")
+            }
+        }
+        if(startNSD) {
+            nsdManager!!.registerService(nsdServiceInfo, NsdManager.PROTOCOL_DNS_SD, nsdRegistrationListener)
+        }
         //Start Jetty
         jettyServer!!.start()
         jettyServer!!.join()
@@ -53,6 +94,9 @@ class SMSServer {
             serverLogging!!.log("info", "Stopping Server...")
             jettyServer!!.stop()
         }
+        nsdRegistrationListener?.let {
+            nsdManager?.unregisterService(it)
+        }
     }
 
     /**

app/src/main/java/net/xcreen/restsms/server/ServerService.kt

@@ -58,6 +58,8 @@ class ServerService : Service() {
         val sharedPref = PreferenceManager.getDefaultSharedPreferences(this)
         val serverPort = sharedPref.getInt("server_port", 8080)
         appContext?.smsServer?.port = serverPort
+        //Set NSD
+        appContext?.smsServer?.startNSD = sharedPref.getBoolean("enable_nsd", false)
         //Set Auth params
         val goodToken = sharedPref.getString("server_token", "") ?: ""
         val authEnabled = sharedPref.getBoolean("enable_auth", false)

app/src/main/res/layout/fragment_settings.xml

@@ -107,6 +107,18 @@
             android:textColor="@color/colorWhite"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/settings_open_browser_checkbox" />
+
+        <CheckBox
+            android:id="@+id/settings_enable_nsd"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginTop="8dp"
+            android:text="@string/setting_enable_nsd"
+            android:textAppearance="@style/TextAppearance.MaterialComponents.Subtitle1"
+            android:textColor="@color/colorWhite"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/settings_token_edittext" />
     </androidx.constraintlayout.widget.ConstraintLayout>
 
 </FrameLayout>

app/src/main/res/values/strings.xml

@@ -50,6 +50,7 @@
     <string name="setting_open_website">Open Browser after Server-Start</string>
     <string name="setting_disable_logging">Disable writing/creating log-files</string>
     <string name="setting_enable_auth">Enable authentication</string>
+    <string name="setting_enable_nsd">Enable Network Service Discovery</string>
     <string name="setting_save">Save</string>
     <string name="setting_invalid_port">Invalid Port!</string>
     <string name="setting_invalid_port_range">Port must be between 0 and 65535!</string>