android/ fest ins Repo aufgenommen — Build wie beim Adressmanager [apk]

Der android-Ordner wurde bisher bei JEDEM CI-Lauf neu erzeugt (cap add android)
und Kotlin/MainActivity/Plugin jedes Mal frisch reingepatcht — genau das war die
Ursache der ganzen Kotlin-Build-Fehler.

Jetzt liegt android/ einmal sauber eingerichtet im Repo:
- kotlin-android-Plugin aktiviert (1.9.24, jvmTarget 17)
- NetDiagScannerPlugin.kt + Snmp.kt + MainActivity.kt (registriert das Plugin)
- AndroidManifest mit allen noetigen Permissions
- Signing-Config in app/build.gradle (Werte aus gradle.properties)

build.yml entschlackt: nur noch npm install, vite build, cap sync, gradle.
Build-Artefakte bleiben per .gitignore aussen vor.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.forgejo/workflows/build.yml

@@ -30,94 +30,27 @@ jobs:
       - name: Frontend bauen
         run: VITE_APP_VERSION="$(cat /tmp/BUILD_VERSION)" npx vite build
 
-      - name: Android-Projekt anlegen
+      # android/ liegt komplett im Repo (Kotlin, Plugin, MainActivity, Manifest,
-        run: |
+      # Signing-Config sind dort fest eingerichtet). cap sync kopiert nur die
-          # cap add android nur wenn android/ noch nicht vorhanden
+      # Web-Assets rein und aktualisiert die Plugin-Liste.
-          [ -d android ] || npx cap add android
-
-      - name: Natives Plugin kopieren
-        run: |
-          PLUGIN_DST=android/app/src/main/java/de/data_it_solution/netdiag
-          mkdir -p "$PLUGIN_DST"
-          cp native-plugin/NetDiagScannerPlugin.kt "$PLUGIN_DST/"
-          cp native-plugin/Snmp.kt "$PLUGIN_DST/"
-
-      - name: Kotlin im Gradle-Build aktivieren
-        run: |
-          # Das native Plugin ist Kotlin. Das von `cap add android` erzeugte
-          # App-Modul hat aber KEIN Kotlin aktiviert. Ohne kotlin-android-Plugin
-          # werden .kt-Dateien beim Build stillschweigend ignoriert (kein Fehler)
-          # -> NetDiagScannerPlugin landet nie im APK -> "plugin not implemented".
-          KOTLIN_VERSION=1.9.24
-          # 1. Kotlin-Gradle-Plugin auf Projektebene verfügbar machen
-          if ! grep -q 'kotlin-gradle-plugin' android/build.gradle; then
-            sed -i "/com.android.tools.build:gradle/a\\        classpath \"org.jetbrains.kotlin:kotlin-gradle-plugin:${KOTLIN_VERSION}\"" android/build.gradle
-          fi
-          # 2. Plugin im App-Modul anwenden + JVM-Target auf 17 (Java-Target von Capacitor 6)
-          APP=android/app/build.gradle
-          if ! grep -q 'kotlin-android' "$APP"; then
-            sed -i "/apply plugin: 'com.android.application'/a apply plugin: 'kotlin-android'" "$APP"
-            sed -i "/^android {/a\\    kotlinOptions { jvmTarget = '17' }" "$APP"
-          fi
-          # 3. Coroutines-Abhängigkeit (vom Plugin genutzt)
-          if ! grep -q 'kotlinx-coroutines-android' "$APP"; then
-            sed -i '/dependencies {/a \    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.8.0"' "$APP"
-          fi
-
-      - name: MainActivity durch Kotlin-Variante ersetzen (Plugin registrieren)
-        run: |
-          PKG=android/app/src/main/java/de/data_it_solution/netdiag
-          # `cap add android` erzeugt MainActivity.java — die registriert das
-          # Plugin NICHT und würde mit unserer .kt-Klasse kollidieren (gleiche
-          # Klasse, gleiches Package). Also Java-Datei löschen, Kotlin schreiben.
-          rm -f "$PKG/MainActivity.java"
-          cat > "$PKG/MainActivity.kt" <<'KT'
-          package de.data_it_solution.netdiag
-
-          import android.os.Bundle
-          import com.getcapacitor.BridgeActivity
-
-          class MainActivity : BridgeActivity() {
-            override fun onCreate(savedInstanceState: Bundle?) {
-              registerPlugin(NetDiagScannerPlugin::class.java)
-              super.onCreate(savedInstanceState)
-            }
-          }
-          KT
-
       - name: Capacitor sync
         run: npx cap sync android
 
-      - name: Keystore vorbereiten
+      - name: Keystore + Signing-Properties vorbereiten
         run: |
           echo "${{ secrets.KEYSTORE_BASE64 }}" | base64 -d > /tmp/release.jks
-          cat > android/gradle.properties <<PROPS
+          cat >> android/gradle.properties <<PROPS
-          android.useAndroidX=true
+          org.gradle.jvmargs=-Xmx2048m -XX:MaxMetaspaceSize=512m
           RELEASE_STORE_FILE=/tmp/release.jks
           RELEASE_STORE_PASSWORD=${{ secrets.KEYSTORE_PASSWORD }}
           RELEASE_KEY_ALIAS=${{ secrets.KEY_ALIAS }}
           RELEASE_KEY_PASSWORD=${{ secrets.KEY_PASSWORD }}
           PROPS
 
-      - name: Release-Signing in build.gradle eintragen
-        run: |
-          cd android/app
-          sed -i '/buildTypes {/i \
-              signingConfigs {\
-                  release {\
-                      storeFile file(RELEASE_STORE_FILE)\
-                      storePassword RELEASE_STORE_PASSWORD\
-                      keyAlias RELEASE_KEY_ALIAS\
-                      keyPassword RELEASE_KEY_PASSWORD\
-                  }\
-              }' build.gradle
-          sed -i 's/minifyEnabled false/minifyEnabled false\n            signingConfig signingConfigs.release/' build.gradle
-
       - name: APK bauen (Release)
         run: |
           cd android
           echo "sdk.dir=/opt/android-sdk" > local.properties
-          echo "org.gradle.jvmargs=-Xmx2048m -XX:MaxMetaspaceSize=512m" >> gradle.properties
           chmod +x gradlew
           ./gradlew assembleRelease --no-daemon
 

android/.gitignore

@@ -0,0 +1,101 @@
+# Using Android gitignore template: https://github.com/github/gitignore/blob/HEAD/Android.gitignore
+
+# Built application files
+*.apk
+*.aar
+*.ap_
+*.aab
+
+# Files for the ART/Dalvik VM
+*.dex
+
+# Java class files
+*.class
+
+# Generated files
+bin/
+gen/
+out/
+#  Uncomment the following line in case you need and you don't have the release build type files in your app
+# release/
+
+# Gradle files
+.gradle/
+build/
+
+# Local configuration file (sdk path, etc)
+local.properties
+
+# Proguard folder generated by Eclipse
+proguard/
+
+# Log Files
+*.log
+
+# Android Studio Navigation editor temp files
+.navigation/
+
+# Android Studio captures folder
+captures/
+
+# IntelliJ
+*.iml
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/gradle.xml
+.idea/assetWizardSettings.xml
+.idea/dictionaries
+.idea/libraries
+# Android Studio 3 in .gitignore file.
+.idea/caches
+.idea/modules.xml
+# Comment next line if keeping position of elements in Navigation Editor is relevant for you
+.idea/navEditor.xml
+
+# Keystore files
+# Uncomment the following lines if you do not want to check your keystore files in.
+#*.jks
+#*.keystore
+
+# External native build folder generated in Android Studio 2.2 and later
+.externalNativeBuild
+.cxx/
+
+# Google Services (e.g. APIs or Firebase)
+# google-services.json
+
+# Freeline
+freeline.py
+freeline/
+freeline_project_description.json
+
+# fastlane
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots
+fastlane/test_output
+fastlane/readme.md
+
+# Version control
+vcs.xml
+
+# lint
+lint/intermediates/
+lint/generated/
+lint/outputs/
+lint/tmp/
+# lint/reports/
+
+# Android Profiling
+*.hprof
+
+# Cordova plugins for Capacitor
+capacitor-cordova-android-plugins
+
+# Copied web assets
+app/src/main/assets/public
+
+# Generated Config files
+app/src/main/assets/capacitor.config.json
+app/src/main/assets/capacitor.plugins.json
+app/src/main/res/xml/config.xml

android/app/.gitignore

@@ -0,0 +1,2 @@
+/build/*
+!/build/.npmkeep

android/app/build.gradle

@@ -0,0 +1,72 @@
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+
+android {
+    namespace "de.data_it_solution.netdiag"
+    compileSdk rootProject.ext.compileSdkVersion
+    defaultConfig {
+        applicationId "de.data_it_solution.netdiag"
+        minSdkVersion rootProject.ext.minSdkVersion
+        targetSdkVersion rootProject.ext.targetSdkVersion
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+        aaptOptions {
+             // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.
+             // Default: https://android.googlesource.com/platform/frameworks/base/+/282e181b58cf72b6ca770dc7ca5f91f135444502/tools/aapt/AaptAssets.cpp#61
+            ignoreAssetsPattern '!.svn:!.git:!.ds_store:!*.scc:.*:!CVS:!thumbs.db:!picasa.ini:!*~'
+        }
+    }
+    kotlinOptions {
+        jvmTarget = '17'
+    }
+    signingConfigs {
+        release {
+            // Werte kommen aus gradle.properties — in der CI aus dem Keystore-Secret
+            // befuellt. Lokale Debug-Builds brauchen sie nicht.
+            if (project.hasProperty('RELEASE_STORE_FILE')) {
+                storeFile file(RELEASE_STORE_FILE)
+                storePassword RELEASE_STORE_PASSWORD
+                keyAlias RELEASE_KEY_ALIAS
+                keyPassword RELEASE_KEY_PASSWORD
+            }
+        }
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            signingConfig signingConfigs.release
+        }
+    }
+}
+
+repositories {
+    flatDir{
+        dirs '../capacitor-cordova-android-plugins/src/main/libs', 'libs'
+    }
+}
+
+dependencies {
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+    implementation "androidx.appcompat:appcompat:$androidxAppCompatVersion"
+    implementation "androidx.coordinatorlayout:coordinatorlayout:$androidxCoordinatorLayoutVersion"
+    implementation "androidx.core:core-splashscreen:$coreSplashScreenVersion"
+    implementation project(':capacitor-android')
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.8.0"
+    testImplementation "junit:junit:$junitVersion"
+    androidTestImplementation "androidx.test.ext:junit:$androidxJunitVersion"
+    androidTestImplementation "androidx.test.espresso:espresso-core:$androidxEspressoCoreVersion"
+    implementation project(':capacitor-cordova-android-plugins')
+}
+
+apply from: 'capacitor.build.gradle'
+
+try {
+    def servicesJSON = file('google-services.json')
+    if (servicesJSON.text) {
+        apply plugin: 'com.google.gms.google-services'
+    }
+} catch(Exception e) {
+    logger.info("google-services.json not found, google-services plugin not applied. Push Notifications won't work")
+}

android/app/capacitor.build.gradle

@@ -0,0 +1,24 @@
+// DO NOT EDIT THIS FILE! IT IS GENERATED EACH TIME "capacitor update" IS RUN
+
+android {
+  compileOptions {
+      sourceCompatibility JavaVersion.VERSION_17
+      targetCompatibility JavaVersion.VERSION_17
+  }
+}
+
+apply from: "../capacitor-cordova-android-plugins/cordova.variables.gradle"
+dependencies {
+    implementation project(':capacitor-community-sqlite')
+    implementation project(':capacitor-app')
+    implementation project(':capacitor-filesystem')
+    implementation project(':capacitor-network')
+    implementation project(':capacitor-preferences')
+    implementation project(':capacitor-share')
+
+}
+
+
+if (hasProperty('postBuildExtras')) {
+  postBuildExtras()
+}

android/app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

android/app/src/androidTest/java/com/getcapacitor/myapp/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.getcapacitor.myapp;
+
+import static org.junit.Assert.*;
+
+import android.content.Context;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.platform.app.InstrumentationRegistry;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+
+        assertEquals("com.getcapacitor.app", appContext.getPackageName());
+    }
+}

android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+
+        <activity
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout|uiMode"
+            android:name=".MainActivity"
+            android:label="@string/title_activity_main"
+            android:theme="@style/AppTheme.NoActionBarLaunch"
+            android:launchMode="singleTask"
+            android:exported="true">
+
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+
+        </activity>
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_paths"></meta-data>
+        </provider>
+    </application>
+
+    <!-- Permissions -->
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
+</manifest>

android/app/src/main/java/de/data_it_solution/netdiag/MainActivity.kt

@@ -0,0 +1,11 @@
+package de.data_it_solution.netdiag
+
+import android.os.Bundle
+import com.getcapacitor.BridgeActivity
+
+class MainActivity : BridgeActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        registerPlugin(NetDiagScannerPlugin::class.java)
+        super.onCreate(savedInstanceState)
+    }
+}

android/app/src/main/java/de/data_it_solution/netdiag/NetDiagScannerPlugin.kt

@@ -0,0 +1,551 @@
+package de.data_it_solution.netdiag
+
+import android.Manifest
+import android.content.Context
+import android.net.wifi.WifiManager
+import com.getcapacitor.JSArray
+import com.getcapacitor.JSObject
+import com.getcapacitor.Plugin
+import com.getcapacitor.PluginCall
+import com.getcapacitor.PluginMethod
+import com.getcapacitor.annotation.CapacitorPlugin
+import com.getcapacitor.annotation.Permission
+import com.getcapacitor.annotation.PermissionCallback
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import java.io.BufferedReader
+import java.io.File
+import java.io.FileReader
+import java.net.DatagramPacket
+import java.net.DatagramSocket
+import java.net.InetAddress
+import java.net.InetSocketAddress
+import java.net.Socket
+import java.util.concurrent.ConcurrentHashMap
+
+/**
+ * NetDiagScanner — natives Scan-Plugin der NetDiag-App.
+ *
+ * Der WebView kann keine Raw-Sockets/ICMP/ARP. Diese Klasse führt die
+ * eigentlichen Netzwerk-Messungen durch und wird vom TS-Wrapper
+ * (src/lib/scanner.ts) über `registerPlugin('NetDiagScanner')` angesprochen.
+ *
+ * Integration: Datei nach
+ *   android/app/src/main/java/de/data_it_solution/netdiag/
+ * kopieren und in MainActivity registrieren:
+ *   registerPlugin(NetDiagScannerPlugin::class.java)
+ */
+@CapacitorPlugin(
+    name = "NetDiagScanner",
+    permissions = [
+        Permission(alias = "location", strings = [Manifest.permission.ACCESS_FINE_LOCATION])
+    ]
+)
+class NetDiagScannerPlugin : Plugin() {
+
+    private val io = CoroutineScope(Dispatchers.IO)
+    private val stressRuns = ConcurrentHashMap<String, StressRun>()
+
+    /* --------------------------------------------------------------------- */
+    /* Subnetz / lokale Netzwerkinfo                                          */
+    /* --------------------------------------------------------------------- */
+
+    @PluginMethod
+    fun getLocalSubnet(call: PluginCall) {
+        io.launch {
+            try {
+                val wifi = context.applicationContext.getSystemService(Context.WIFI_SERVICE) as WifiManager
+                @Suppress("DEPRECATION") val dhcp = wifi.dhcpInfo
+                val ipInt = dhcp?.ipAddress ?: 0
+                val gwInt = dhcp?.gateway ?: 0
+                val ip = if (ipInt != 0) intToIp(ipInt) else firstLocalIpv4()
+                val gateway = if (gwInt != 0) intToIp(gwInt) else ""
+                val base = ip.substringBeforeLast('.', "192.168.1")
+                resolve(call, JSObject()
+                    .put("subnet", "$base.0/24")
+                    .put("ip", ip)
+                    .put("gateway", gateway))
+            } catch (e: Exception) {
+                call.reject("getLocalSubnet: ${e.message}")
+            }
+        }
+    }
+
+    /* --------------------------------------------------------------------- */
+    /* IP-Scan: Geräte im Subnetz finden                                      */
+    /* --------------------------------------------------------------------- */
+
+    @PluginMethod
+    fun ipScan(call: PluginCall) {
+        val subnet = call.getString("subnet") ?: return call.reject("subnet fehlt")
+        val base = subnet.substringBeforeLast('.', "192.168.1")
+        io.launch {
+            try {
+                // Parallel-Ping über das gesamte /24
+                val alive = withContext(Dispatchers.IO) {
+                    (1..254).map { host ->
+                        async {
+                            val ip = "$base.$host"
+                            if (InetAddress.getByName(ip).isReachable(350)) ip else null
+                        }
+                    }.awaitAll().filterNotNull()
+                }
+                val arp = readArpTable()
+                val devices = JSArray()
+                for (ip in alive) {
+                    val dev = JSObject().put("ip", ip)
+                    arp[ip]?.let { dev.put("mac", it).put("vendor", ouiVendor(it)) }
+                    try {
+                        val name = InetAddress.getByName(ip).canonicalHostName
+                        if (name != ip) dev.put("hostname", name)
+                    } catch (_: Exception) { }
+                    devices.put(dev)
+                }
+                resolve(call, JSObject().put("devices", devices))
+            } catch (e: Exception) {
+                call.reject("ipScan: ${e.message}")
+            }
+        }
+    }
+
+    /* --------------------------------------------------------------------- */
+    /* Port-Scan                                                              */
+    /* --------------------------------------------------------------------- */
+
+    @PluginMethod
+    fun portScan(call: PluginCall) {
+        val ip = call.getString("ip") ?: return call.reject("ip fehlt")
+        val portsArg = call.getArray("ports") ?: JSArray()
+        val ports = (0 until portsArg.length()).map { portsArg.getInt(it) }
+        io.launch {
+            try {
+                val open = withContext(Dispatchers.IO) {
+                    ports.map { port ->
+                        async {
+                            try {
+                                Socket().use { s ->
+                                    s.connect(InetSocketAddress(ip, port), 700)
+                                }
+                                port
+                            } catch (_: Exception) {
+                                null
+                            }
+                        }
+                    }.awaitAll().filterNotNull()
+                }
+                val arr = JSArray()
+                for (p in open) arr.put(JSObject().put("port", p).put("service", serviceName(p)))
+                resolve(call, JSObject().put("open", arr))
+            } catch (e: Exception) {
+                call.reject("portScan: ${e.message}")
+            }
+        }
+    }
+
+    /* --------------------------------------------------------------------- */
+    /* Ping-Qualität                                                          */
+    /* --------------------------------------------------------------------- */
+
+    @PluginMethod
+    fun pingQuality(call: PluginCall) {
+        val host = call.getString("host") ?: return call.reject("host fehlt")
+        val count = call.getInt("count") ?: 20
+        io.launch {
+            try {
+                resolve(call, measurePing(host, count))
+            } catch (e: Exception) {
+                call.reject("pingQuality: ${e.message}")
+            }
+        }
+    }
+
+    private fun measurePing(host: String, count: Int): JSObject {
+        val times = ArrayList<Double>()
+        val addr = InetAddress.getByName(host)
+        repeat(count) {
+            val t0 = System.nanoTime()
+            if (addr.isReachable(1000)) {
+                times.add((System.nanoTime() - t0) / 1_000_000.0)
+            }
+            Thread.sleep(200)
+        }
+        val received = times.size
+        val loss = ((count - received) * 100) / count
+        val min = times.minOrNull() ?: 0.0
+        val max = times.maxOrNull() ?: 0.0
+        val avg = if (times.isNotEmpty()) times.average() else 0.0
+        // Jitter = mittlere absolute Abweichung aufeinanderfolgender Werte
+        var jitter = 0.0
+        for (i in 1 until times.size) jitter += Math.abs(times[i] - times[i - 1])
+        if (times.size > 1) jitter /= (times.size - 1)
+        return JSObject()
+            .put("sent", count).put("received", received).put("lossPct", loss)
+            .put("minMs", round1(min)).put("avgMs", round1(avg))
+            .put("maxMs", round1(max)).put("jitterMs", round1(jitter))
+    }
+
+    /* --------------------------------------------------------------------- */
+    /* WLAN-Scan                                                              */
+    /* --------------------------------------------------------------------- */
+
+    @PluginMethod
+    fun wifiScan(call: PluginCall) {
+        if (getPermissionState("location") != com.getcapacitor.PermissionState.GRANTED) {
+            requestPermissionForAlias("location", call, "wifiScanPermCallback")
+            return
+        }
+        doWifiScan(call)
+    }
+
+    @PermissionCallback
+    private fun wifiScanPermCallback(call: PluginCall) {
+        if (getPermissionState("location") == com.getcapacitor.PermissionState.GRANTED) {
+            doWifiScan(call)
+        } else {
+            call.reject("Standortberechtigung für WLAN-Scan abgelehnt")
+        }
+    }
+
+    private fun doWifiScan(call: PluginCall) {
+        try {
+            val wifi = context.applicationContext.getSystemService(Context.WIFI_SERVICE) as WifiManager
+            val arr = JSArray()
+            for (r in wifi.scanResults) {
+                val freq = r.frequency
+                arr.put(JSObject()
+                    .put("ssid", if (r.SSID.isNullOrEmpty()) "(versteckt)" else r.SSID)
+                    .put("bssid", r.BSSID ?: "")
+                    .put("channel", freqToChannel(freq))
+                    .put("rssi", r.level)
+                    .put("band", if (freq > 4000) "5 GHz" else "2.4 GHz"))
+            }
+            resolve(call, JSObject().put("networks", arr))
+        } catch (e: Exception) {
+            call.reject("wifiScan: ${e.message}")
+        }
+    }
+
+    /* --------------------------------------------------------------------- */
+    /* DHCP-Discover (Rogue-DHCP-Erkennung)                                   */
+    /* --------------------------------------------------------------------- */
+
+    @PluginMethod
+    fun dhcpDiscover(call: PluginCall) {
+        io.launch {
+            try {
+                val servers = discoverDhcpServers()
+                val arr = JSArray()
+                val arp = readArpTable()
+                for (ip in servers) {
+                    arr.put(JSObject().put("ip", ip).put("mac", arp[ip] ?: ""))
+                }
+                resolve(call, JSObject().put("servers", arr))
+            } catch (e: Exception) {
+                call.reject("dhcpDiscover: ${e.message}")
+            }
+        }
+    }
+
+    /**
+     * Sendet einen DHCPDISCOVER-Broadcast und sammelt antwortende Server.
+     * Best-effort: scheitert auf manchen Geräten an Port-68-Belegung.
+     */
+    private fun discoverDhcpServers(): List<String> {
+        val found = LinkedHashSet<String>()
+        val socket = DatagramSocket()
+        socket.broadcast = true
+        socket.soTimeout = 3000
+        try {
+            val xid = byteArrayOf(0x39, 0x03, 0x42.toByte(), 0x12)
+            val packet = buildDhcpDiscover(xid)
+            socket.send(DatagramPacket(packet, packet.size, InetAddress.getByName("255.255.255.255"), 67))
+            val buf = ByteArray(1500)
+            val deadline = System.currentTimeMillis() + 3000
+            while (System.currentTimeMillis() < deadline) {
+                try {
+                    val resp = DatagramPacket(buf, buf.size)
+                    socket.receive(resp)
+                    // Server-Identifier (Option 54) aus dem Paket lesen, sonst Absender
+                    val srv = parseDhcpServerId(buf, resp.length) ?: resp.address.hostAddress
+                    if (srv != null) found.add(srv)
+                } catch (_: Exception) {
+                    break
+                }
+            }
+        } finally {
+            socket.close()
+        }
+        return found.toList()
+    }
+
+    /* --------------------------------------------------------------------- */
+    /* SNMP v2c GET (Switch: Link-Speed, Fehlerzähler)                        */
+    /* --------------------------------------------------------------------- */
+
+    @PluginMethod
+    fun snmpGet(call: PluginCall) {
+        val host = call.getString("host") ?: return call.reject("host fehlt")
+        val community = call.getString("community") ?: "public"
+        val oidsArg = call.getArray("oids") ?: JSArray()
+        val oids = (0 until oidsArg.length()).map { oidsArg.getString(it) }
+        io.launch {
+            try {
+                val values = JSObject()
+                for (oid in oids) {
+                    values.put(oid, Snmp.get(host, community, oid) ?: "-")
+                }
+                resolve(call, JSObject().put("values", values))
+            } catch (e: Exception) {
+                call.reject("snmpGet: ${e.message}")
+            }
+        }
+    }
+
+    /* --------------------------------------------------------------------- */
+    /* Traceroute (über das System-ping-Binary, kein Root nötig)              */
+    /* --------------------------------------------------------------------- */
+
+    @PluginMethod
+    fun traceroute(call: PluginCall) {
+        val host = call.getString("host") ?: return call.reject("host fehlt")
+        io.launch {
+            try {
+                val hops = JSArray()
+                for (ttl in 1..20) {
+                    val hop = pingWithTtl(host, ttl)
+                    hops.put(JSObject()
+                        .put("ttl", ttl)
+                        .put("ip", hop.ip)
+                        .put("ms", hop.ms))
+                    if (hop.ip == host || hop.reachedTarget) break
+                }
+                resolve(call, JSObject().put("hops", hops))
+            } catch (e: Exception) {
+                call.reject("traceroute: ${e.message}")
+            }
+        }
+    }
+
+    /* --------------------------------------------------------------------- */
+    /* Durchsatz-Test                                                         */
+    /* --------------------------------------------------------------------- */
+
+    @PluginMethod
+    fun throughput(call: PluginCall) {
+        val host = call.getString("host") ?: return call.reject("host fehlt")
+        val port = call.getInt("port") ?: 5201
+        val durationSec = call.getInt("durationSec") ?: 10
+        io.launch {
+            try {
+                // Einfacher TCP-Durchsatz gegen eine Sink/Source-Gegenstelle:
+                // Download = empfangene Bytes, Upload = gesendete Bytes je Sekunde.
+                val res = measureThroughput(host, port, durationSec)
+                resolve(call, res)
+            } catch (e: Exception) {
+                call.reject("throughput: ${e.message}")
+            }
+        }
+    }
+
+    private fun measureThroughput(host: String, port: Int, durationSec: Int): JSObject {
+        val buf = ByteArray(64 * 1024)
+        var downBytes = 0L
+        var upBytes = 0L
+        // Upload-Phase
+        Socket().use { s ->
+            s.connect(InetSocketAddress(host, port), 3000)
+            val end = System.currentTimeMillis() + durationSec * 500L
+            val out = s.getOutputStream()
+            while (System.currentTimeMillis() < end) {
+                out.write(buf); upBytes += buf.size
+            }
+        }
+        // Download-Phase
+        Socket().use { s ->
+            s.connect(InetSocketAddress(host, port), 3000)
+            val end = System.currentTimeMillis() + durationSec * 500L
+            val inp = s.getInputStream()
+            while (System.currentTimeMillis() < end) {
+                val n = inp.read(buf); if (n < 0) break; downBytes += n
+            }
+        }
+        val secs = durationSec / 2.0
+        return JSObject()
+            .put("downMbps", round1(downBytes * 8.0 / 1_000_000.0 / secs))
+            .put("upMbps", round1(upBytes * 8.0 / 1_000_000.0 / secs))
+    }
+
+    /* --------------------------------------------------------------------- */
+    /* Dauer-/Stresstest                                                      */
+    /* --------------------------------------------------------------------- */
+
+    @PluginMethod
+    fun startStressTest(call: PluginCall) {
+        val host = call.getString("host") ?: return call.reject("host fehlt")
+        val durationSec = call.getInt("durationSec") ?: 300
+        val runId = "run-${System.currentTimeMillis()}"
+        val run = StressRun(host, durationSec)
+        stressRuns[runId] = run
+        // Hinweis: für Läufe > einige Minuten sollte ein Foreground-Service
+        // gestartet werden, sonst kann Android den Prozess beenden.
+        io.launch {
+            val end = System.currentTimeMillis() + durationSec * 1000L
+            while (System.currentTimeMillis() < end && run.active) {
+                val q = measurePing(host, 5)
+                run.samples++
+                run.lossSum += q.getInteger("lossPct", 0) ?: 0
+                run.avgSum += q.getDouble("avgMs")
+                run.maxMs = Math.max(run.maxMs, q.getDouble("maxMs"))
+            }
+        }
+        resolve(call, JSObject().put("runId", runId))
+    }
+
+    @PluginMethod
+    fun stopStressTest(call: PluginCall) {
+        val runId = call.getString("runId") ?: return call.reject("runId fehlt")
+        val run = stressRuns.remove(runId) ?: return call.reject("Lauf nicht gefunden")
+        run.active = false
+        val n = Math.max(1, run.samples)
+        resolve(call, JSObject()
+            .put("samples", run.samples)
+            .put("lossPct", run.lossSum / n)
+            .put("avgMs", round1(run.avgSum / n))
+            .put("maxMs", round1(run.maxMs)))
+    }
+
+    private class StressRun(val host: String, val durationSec: Int) {
+        var active = true
+        var samples = 0
+        var lossSum = 0
+        var avgSum = 0.0
+        var maxMs = 0.0
+    }
+
+    /* --------------------------------------------------------------------- */
+    /* Hilfsfunktionen                                                        */
+    /* --------------------------------------------------------------------- */
+
+    private fun resolve(call: PluginCall, data: JSObject) {
+        // Capacitor erwartet die Auflösung auf dem Main-Thread
+        activity.runOnUiThread { call.resolve(data) }
+    }
+
+    private fun intToIp(i: Int): String =
+        "${i and 0xFF}.${i shr 8 and 0xFF}.${i shr 16 and 0xFF}.${i shr 24 and 0xFF}"
+
+    private fun firstLocalIpv4(): String {
+        java.net.NetworkInterface.getNetworkInterfaces().toList().forEach { ni ->
+            ni.inetAddresses.toList().forEach { addr ->
+                if (!addr.isLoopbackAddress && addr is java.net.Inet4Address) {
+                    return addr.hostAddress ?: ""
+                }
+            }
+        }
+        return "192.168.1.1"
+    }
+
+    /** /proc/net/arp lesen -> Map IP -> MAC (kann auf neuen Android-Versionen leer sein) */
+    private fun readArpTable(): Map<String, String> {
+        val map = HashMap<String, String>()
+        try {
+            BufferedReader(FileReader(File("/proc/net/arp"))).use { br ->
+                br.readLine() // Kopfzeile
+                var line = br.readLine()
+                while (line != null) {
+                    val parts = line.split(Regex("\\s+"))
+                    if (parts.size >= 4 && parts[3] != "00:00:00:00:00:00") {
+                        map[parts[0]] = parts[3].uppercase()
+                    }
+                    line = br.readLine()
+                }
+            }
+        } catch (_: Exception) { }
+        return map
+    }
+
+    /** ping mit fester TTL -> (antwortende IP, Latenz in ms) */
+    private data class Hop(val ip: String, val ms: Double, val reachedTarget: Boolean)
+
+    private fun pingWithTtl(host: String, ttl: Int): Hop {
+        return try {
+            val proc = ProcessBuilder("/system/bin/ping", "-c", "1", "-W", "2", "-t", ttl.toString(), host)
+                .redirectErrorStream(true).start()
+            val out = proc.inputStream.bufferedReader().readText()
+            proc.waitFor()
+            val ip = Regex("""From ([\d.]+)""").find(out)?.groupValues?.get(1)
+                ?: Regex("""\((\d+\.\d+\.\d+\.\d+)\)""").find(out)?.groupValues?.get(1)
+                ?: "*"
+            val ms = Regex("""time=([\d.]+)""").find(out)?.groupValues?.get(1)?.toDoubleOrNull() ?: 0.0
+            val reached = out.contains("bytes from")
+            Hop(if (reached) host else ip, ms, reached)
+        } catch (e: Exception) {
+            Hop("*", 0.0, false)
+        }
+    }
+
+    private fun freqToChannel(freq: Int): Int = when {
+        freq == 2484 -> 14
+        freq in 2412..2472 -> (freq - 2412) / 5 + 1
+        freq in 5170..5825 -> (freq - 5170) / 5 + 34
+        else -> 0
+    }
+
+    private fun serviceName(port: Int): String = when (port) {
+        21 -> "ftp"; 22 -> "ssh"; 23 -> "telnet"; 53 -> "dns"; 80 -> "http"
+        139 -> "netbios"; 443 -> "https"; 445 -> "smb"; 502 -> "modbus"
+        1883 -> "mqtt"; 3389 -> "rdp"; 8080 -> "http-alt"; 8443 -> "https-alt"
+        else -> ""
+    }
+
+    /** Minimaler OUI-Hersteller-Lookup. Für vollständige Abdeckung OUI-DB einbinden. */
+    private fun ouiVendor(mac: String): String {
+        val oui = mac.replace(":", "").take(6).uppercase()
+        return OUI[oui] ?: ""
+    }
+
+    private fun round1(v: Double): Double = Math.round(v * 10.0) / 10.0
+
+    private fun buildDhcpDiscover(xid: ByteArray): ByteArray {
+        val p = ByteArray(300)
+        p[0] = 1                  // op = BOOTREQUEST
+        p[1] = 1                  // htype = Ethernet
+        p[2] = 6                  // hlen
+        System.arraycopy(xid, 0, p, 4, 4)
+        p[10] = 0x80.toByte()     // Broadcast-Flag
+        // Magic Cookie
+        p[236] = 99; p[237] = 130.toByte(); p[238] = 83; p[239] = 99
+        // Option 53: DHCP Message Type = DISCOVER
+        p[240] = 53; p[241] = 1; p[242] = 1
+        p[243] = 255.toByte()     // Ende
+        return p
+    }
+
+    private fun parseDhcpServerId(buf: ByteArray, len: Int): String? {
+        var i = 240
+        while (i + 1 < len) {
+            val opt = buf[i].toInt() and 0xFF
+            if (opt == 255) break
+            if (opt == 0) { i++; continue }
+            val l = buf[i + 1].toInt() and 0xFF
+            if (opt == 54 && l == 4) {
+                return "${buf[i+2].toInt() and 0xFF}.${buf[i+3].toInt() and 0xFF}." +
+                    "${buf[i+4].toInt() and 0xFF}.${buf[i+5].toInt() and 0xFF}"
+            }
+            i += 2 + l
+        }
+        return null
+    }
+
+    companion object {
+        /** Kleiner OUI-Auszug — bei Bedarf vollständige IEEE-OUI-Datei einbinden. */
+        private val OUI = mapOf(
+            "3810D5" to "AVM", "DCA632" to "Raspberry Pi", "B827EB" to "Raspberry Pi",
+            "001CC0" to "Intel", "F0B479" to "Apple", "D8EB97" to "TP-Link"
+        )
+    }
+}

android/app/src/main/java/de/data_it_solution/netdiag/Snmp.kt

@@ -0,0 +1,138 @@
+package de.data_it_solution.netdiag
+
+import java.io.ByteArrayOutputStream
+import java.net.DatagramPacket
+import java.net.DatagramSocket
+import java.net.InetAddress
+
+/**
+ * Minimaler SNMP-v2c-GET-Client.
+ *
+ * Reicht für das Auslesen einzelner OIDs (Link-Speed, Fehlerzähler) von
+ * gemanagten Switches. Implementiert nur so viel BER-Kodierung wie nötig.
+ */
+object Snmp {
+
+    /**
+     * Eine OID per SNMP v2c GET abfragen.
+     *
+     * @return Wert als String oder null bei Fehler/Timeout
+     */
+    fun get(host: String, community: String, oid: String): String? {
+        return try {
+            val request = buildGetRequest(community, oid)
+            val socket = DatagramSocket()
+            socket.soTimeout = 2500
+            socket.use {
+                it.send(DatagramPacket(request, request.size, InetAddress.getByName(host), 161))
+                val buf = ByteArray(2048)
+                val resp = DatagramPacket(buf, buf.size)
+                it.receive(resp)
+                parseFirstValue(buf, resp.length)
+            }
+        } catch (e: Exception) {
+            null
+        }
+    }
+
+    /* ---- BER-Kodierung ---- */
+
+    private fun tlv(tag: Int, value: ByteArray): ByteArray {
+        val out = ByteArrayOutputStream()
+        out.write(tag)
+        when {
+            value.size < 0x80 -> out.write(value.size)
+            value.size < 0x100 -> { out.write(0x81); out.write(value.size) }
+            else -> { out.write(0x82); out.write(value.size shr 8); out.write(value.size and 0xFF) }
+        }
+        out.write(value)
+        return out.toByteArray()
+    }
+
+    private fun integer(v: Int): ByteArray {
+        val bytes = when {
+            v == 0 -> byteArrayOf(0)
+            v < 0x80 -> byteArrayOf(v.toByte())
+            v < 0x8000 -> byteArrayOf((v shr 8).toByte(), v.toByte())
+            else -> byteArrayOf((v shr 24).toByte(), (v shr 16).toByte(), (v shr 8).toByte(), v.toByte())
+        }
+        return tlv(0x02, bytes)
+    }
+
+    private fun octetString(s: String): ByteArray = tlv(0x04, s.toByteArray())
+
+    private fun oid(o: String): ByteArray {
+        val parts = o.trim().trimStart('.').split('.').map { it.toInt() }
+        val out = ByteArrayOutputStream()
+        out.write(parts[0] * 40 + parts[1]) // erste zwei Subidentifier zusammengefasst
+        for (i in 2 until parts.size) {
+            var v = parts[i]
+            if (v < 0x80) {
+                out.write(v)
+            } else {
+                val stack = ArrayDeque<Int>()
+                stack.addFirst(v and 0x7F)
+                v = v shr 7
+                while (v > 0) { stack.addFirst((v and 0x7F) or 0x80); v = v shr 7 }
+                stack.forEach { out.write(it) }
+            }
+        }
+        return tlv(0x06, out.toByteArray())
+    }
+
+    private fun buildGetRequest(community: String, oidStr: String): ByteArray {
+        val varbind = tlv(0x30, oid(oidStr) + tlv(0x05, ByteArray(0))) // OID + NULL
+        val varbindList = tlv(0x30, varbind)
+        val requestId = (System.currentTimeMillis() and 0x7FFF).toInt()
+        val pdu = tlv(
+            0xA0, // GetRequest-PDU
+            integer(requestId) + integer(0) + integer(0) + varbindList,
+        )
+        val message = tlv(
+            0x30,
+            integer(1) + octetString(community) + pdu, // version 1 = SNMPv2c
+        )
+        return message
+    }
+
+    /* ---- Antwort parsen: ersten Variablen-Wert herausziehen ---- */
+
+    private fun parseFirstValue(buf: ByteArray, len: Int): String? {
+        var i = 0
+        // Durch die Struktur navigieren bis zum ersten primitiven Wert nach einer OID
+        var lastWasOid = false
+        while (i < len) {
+            val tag = buf[i].toInt() and 0xFF
+            i++
+            if (i >= len) break
+            var l = buf[i].toInt() and 0xFF
+            i++
+            if (l and 0x80 != 0) {
+                val n = l and 0x7F
+                l = 0
+                for (k in 0 until n) { l = (l shl 8) or (buf[i].toInt() and 0xFF); i++ }
+            }
+            // Konstruierte Typen (SEQUENCE, PDU) aufsteigen
+            if (tag == 0x30 || tag == 0xA2 || tag == 0xA0) continue
+            if (tag == 0x06) { lastWasOid = true; i += l; continue }
+            if (lastWasOid) {
+                return when (tag) {
+                    0x02, 0x41, 0x42, 0x43, 0x44, 0x46 -> { // INTEGER, Counter, Gauge, TimeTicks ...
+                        var v = 0L
+                        for (k in 0 until l) v = (v shl 8) or (buf[i + k].toLong() and 0xFF)
+                        v.toString()
+                    }
+                    0x04 -> String(buf, i, l) // OCTET STRING
+                    0x05 -> "" // NULL -> kein Wert
+                    else -> {
+                        val sb = StringBuilder()
+                        for (k in 0 until l) sb.append("%02X".format(buf[i + k]))
+                        sb.toString()
+                    }
+                }
+            }
+            i += l
+        }
+        return null
+    }
+}

android/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>

android/app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillColor="#26A69A"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+</vector>

android/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <WebView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/ic_launcher_background"/>
+    <foreground android:drawable="@mipmap/ic_launcher_foreground"/>
+</adaptive-icon>

android/app/src/main/res/values/ic_launcher_background.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#FFFFFF</color>
+</resources>

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

@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<resources>
+    <string name="app_name">NetDiag</string>
+    <string name="title_activity_main">NetDiag</string>
+    <string name="package_name">de.data_it_solution.netdiag</string>
+    <string name="custom_url_scheme">de.data_it_solution.netdiag</string>
+</resources>

android/app/src/main/res/values/styles.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+    <style name="AppTheme.NoActionBar" parent="Theme.AppCompat.DayNight.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+        <item name="android:background">@null</item>
+    </style>
+
+
+    <style name="AppTheme.NoActionBarLaunch" parent="Theme.SplashScreen">
+        <item name="android:background">@drawable/splash</item>
+    </style>
+</resources>

android/app/src/main/res/xml/file_paths.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths xmlns:android="http://schemas.android.com/apk/res/android">
+    <external-path name="my_images" path="." />
+    <cache-path name="my_cache_images" path="." />
+</paths>

android/app/src/test/java/com/getcapacitor/myapp/ExampleUnitTest.java

@@ -0,0 +1,18 @@
+package com.getcapacitor.myapp;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}

android/build.gradle

@@ -0,0 +1,30 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    
+    repositories {
+        google()
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:8.2.1'
+        classpath 'com.google.gms:google-services:4.4.0'
+        classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.24'
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+apply from: "variables.gradle"
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

android/capacitor.settings.gradle

@@ -0,0 +1,21 @@
+// DO NOT EDIT THIS FILE! IT IS GENERATED EACH TIME "capacitor update" IS RUN
+include ':capacitor-android'
+project(':capacitor-android').projectDir = new File('../node_modules/@capacitor/android/capacitor')
+
+include ':capacitor-community-sqlite'
+project(':capacitor-community-sqlite').projectDir = new File('../node_modules/@capacitor-community/sqlite/android')
+
+include ':capacitor-app'
+project(':capacitor-app').projectDir = new File('../node_modules/@capacitor/app/android')
+
+include ':capacitor-filesystem'
+project(':capacitor-filesystem').projectDir = new File('../node_modules/@capacitor/filesystem/android')
+
+include ':capacitor-network'
+project(':capacitor-network').projectDir = new File('../node_modules/@capacitor/network/android')
+
+include ':capacitor-preferences'
+project(':capacitor-preferences').projectDir = new File('../node_modules/@capacitor/preferences/android')
+
+include ':capacitor-share'
+project(':capacitor-share').projectDir = new File('../node_modules/@capacitor/share/android')

android/gradle.properties

@@ -0,0 +1,22 @@
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true

android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2.1-all.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

android/gradlew

@@ -0,0 +1,248 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

android/gradlew.bat

@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

android/settings.gradle

@@ -0,0 +1,5 @@
+include ':app'
+include ':capacitor-cordova-android-plugins'
+project(':capacitor-cordova-android-plugins').projectDir = new File('./capacitor-cordova-android-plugins/')
+
+apply from: 'capacitor.settings.gradle'

android/variables.gradle

@@ -0,0 +1,16 @@
+ext {
+    minSdkVersion = 22
+    compileSdkVersion = 34
+    targetSdkVersion = 34
+    androidxActivityVersion = '1.8.0'
+    androidxAppCompatVersion = '1.6.1'
+    androidxCoordinatorLayoutVersion = '1.2.0'
+    androidxCoreVersion = '1.12.0'
+    androidxFragmentVersion = '1.6.2'
+    coreSplashScreenVersion = '1.0.1'
+    androidxWebkitVersion = '1.9.0'
+    junitVersion = '4.13.2'
+    androidxJunitVersion = '1.1.5'
+    androidxEspressoCoreVersion = '3.5.1'
+    cordovaAndroidVersion = '10.1.1'
+}