Starts adding a Screen Mirroring addon

screen_mirror/.gitignore

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+/build

screen_mirror/build.gradle

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+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+    id 'kotlin-kapt'
+}
+
+repositories {
+    maven { url 'https://jitpack.io' }
+}
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion "31.0.0"
+
+    defaultConfig {
+        applicationId "me.hufman.idriveconnectaddons.screen_mirror"
+        minSdkVersion 23
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildFeatures {
+        dataBinding true
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+}
+
+dependencies {
+
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation 'androidx.core:core-ktx:1.6.0'
+    implementation 'androidx.appcompat:appcompat:1.3.1'
+    implementation 'com.google.android.material:material:1.4.0'
+    implementation 'androidx.activity:activity-ktx:1.3.1'
+
+    implementation 'io.bimmergestalt:IDriveConnectKit:jitpack_publish-SNAPSHOT'
+    implementation 'io.bimmergestalt:IDriveConnectKitAndroid:jitpack_publish_2-SNAPSHOT'
+    implementation project(path: ':lib')
+
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}

screen_mirror/proguard-rules.pro

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+# 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

screen_mirror/src/androidTest/java/io/bimmergestalt/idriveconnectaddons/screenmirror/ExampleInstrumentedTest.kt

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+package io.bimmergestalt.idriveconnectaddons.screenmirror
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("me.hufman.idriveconnectaddons.screen_mirror", appContext.packageName)
+    }
+}

screen_mirror/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="io.bimmergestalt.idriveconnectaddons.screenmirror">
+
+    <!-- Connect to local etch port -->
+    <uses-permission android:name="android.permission.INTERNET" />
+    <!-- Provide a foreground service to indicate mirroring status -->
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
+
+    <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/Theme.IDriveConnectAddons">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".RequestActivity" />
+        <service android:name=".CarAppService">
+            <intent-filter>
+                <action android:name="io.bimmergestalt.carconnection.service" />
+            </intent-filter>
+        </service>
+        <service android:name=".NotificationService"
+            android:foregroundServiceType="mediaProjection" />
+    </application>
+
+</manifest>

screen_mirror/src/main/java/io/bimmergestalt/idriveconnectaddons/screenmirror/CarAppAssetResources.kt

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+package io.bimmergestalt.idriveconnectaddons.screenmirror
+
+import android.content.Context
+import io.bimmergestalt.idriveconnectkit.android.CarAppResources
+import io.bimmergestalt.idriveconnectkit.android.CertMangling
+import io.bimmergestalt.idriveconnectkit.android.security.SecurityAccess
+import java.io.ByteArrayInputStream
+import java.io.FileNotFoundException
+import java.io.InputStream
+
+/**
+ * An implementation of CarAppResources for easy use in Android apps
+ *
+ * Loads resource files from the app context's assets
+ *
+ * It expects to find the App Certificate at:
+ *   - carapplications/$name/rhmi/$brand/$name.p7b
+ *   - carapplications/$name/$name.p7b
+ *
+ * It expects to find the ui_description.xml at:
+ *   - carapplications/$name/rhmi/$brand/ui_description.xml
+ *   - carapplications/$name/rhmi/common/ui_description.xml
+ *   - carapplications/$name/rhmi/ui_description.xml
+ *
+ * It expects to find the images.zip file at:
+ *   - carapplications/$name/rhmi/$brand/images.zip
+ *   - carapplications/$name/rhmi/common/images.zip
+ *
+ * It expects to find the textx.zip file at:
+ *   - carapplications/$name/rhmi/$brand/texts.zip
+ *   - carapplications/$name/rhmi/common/texts.zip
+ *
+ * The $brand is always lower-cased
+ *
+ * This module uses SecurityAccess to automatically alter the App Certificate
+ * to include the necessary extra certs from the Security Module.
+ *
+ * todo: Move to IDriveConnectKitAndroid
+ * */
+class CarAppAssetResources(val context: Context, val name: String): CarAppResources {
+    fun loadFile(path: String): InputStream? {
+        try {
+            return context.assets.open(path)
+        } catch (e: FileNotFoundException) {
+            return null
+        }
+    }
+
+    fun getAppCertificateRaw(brand: String): InputStream? {
+        return loadFile("carapplications/$name/rhmi/${brand.toLowerCase()}/$name.p7b") ?:
+        loadFile("carapplications/$name/$name.p7b")
+    }
+
+    override fun getAppCertificate(brand: String): InputStream? {
+        val appCert = getAppCertificateRaw(brand)?.readBytes() as ByteArray
+        val signedCert = CertMangling.mergeBMWCert(appCert, SecurityAccess.getInstance(context).fetchBMWCerts(brandHint= brand))
+        return ByteArrayInputStream(signedCert)
+    }
+
+    override fun getUiDescription(brand: String): InputStream? {
+        return loadFile("carapplications/$name/rhmi/${brand.toLowerCase()}/ui_description.xml") ?:
+        loadFile("carapplications/$name/rhmi/common/ui_description.xml") ?:
+        loadFile("carapplications/$name/rhmi/ui_description.xml")
+    }
+
+    override fun getImagesDB(brand: String): InputStream? {
+        return loadFile("carapplications/$name/rhmi/${brand.toLowerCase()}/images.zip") ?:
+        loadFile("carapplications/$name/rhmi/common/images.zip")
+    }
+
+    override fun getTextsDB(brand: String): InputStream? {
+        return loadFile("carapplications/$name/rhmi/${brand.toLowerCase()}/texts.zip") ?:
+        loadFile("carapplications/$name/rhmi/common/texts.zip")
+    }
+}

screen_mirror/src/main/java/io/bimmergestalt/idriveconnectaddons/screenmirror/CarAppService.kt

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+package io.bimmergestalt.idriveconnectaddons.screenmirror
+
+import android.app.Service
+import android.content.Intent
+import android.os.Build
+import android.os.IBinder
+import android.util.Log
+import io.bimmergestalt.idriveconnectaddons.screenmirror.carapp.CarApp
+import io.bimmergestalt.idriveconnectkit.android.IDriveConnectionReceiver
+import io.bimmergestalt.idriveconnectkit.android.IDriveConnectionStatus
+import io.bimmergestalt.idriveconnectkit.android.security.SecurityAccess
+
+class CarAppService: Service() {
+    var thread: CarThread? = null
+    var app: CarApp? = null
+
+    override fun onCreate() {
+        super.onCreate()
+        SecurityAccess.getInstance(applicationContext).connect()
+    }
+
+    /**
+     * When a car is connected, it will bind the Addon Service
+     */
+    override fun onBind(intent: Intent?): IBinder? {
+        intent ?: return null
+        setConnection(intent)
+        return null
+    }
+
+    /**
+     * If the thread crashes for any reason,
+     * opening the main app will trigger a Start on the Addon Services
+     * as a chance to reconnect
+     */
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        super.onStartCommand(intent, flags, startId)
+        intent ?: return START_NOT_STICKY
+        setConnection(intent)
+        startThread()
+        return START_STICKY
+    }
+
+    /**
+     * The car has disconnected, so forget the previous details
+     */
+    override fun onUnbind(intent: Intent?): Boolean {
+        IDriveConnectionStatus.reset()
+        return super.onUnbind(intent)
+    }
+
+    /**
+     * Parses the connection intent and sets the connection details
+     * todo: Move to IDriveConnectionListener
+     */
+    fun setConnection(intent: Intent) {
+        val brand = intent.getStringExtra("EXTRA_BRAND")
+        val host = intent.getStringExtra("EXTRA_HOST")
+        val port = intent.getIntExtra("EXTRA_PORT", -1)
+        val instanceId = intent.getIntExtra("EXTRA_INSTANCE_ID", -1)
+        Log.i(TAG, "Received connection details: $brand at $host:$port($instanceId)")
+        brand ?: return
+        host ?: return
+        if (port == -1) {
+            return
+        }
+        IDriveConnectionStatus.setConnection(brand, host, port, instanceId)
+        startThread()
+    }
+
+    /**
+     * Starts the thread for the car app, if it isn't running
+     */
+    fun startThread() {
+        val iDriveConnectionStatus = IDriveConnectionReceiver()
+        val securityAccess = SecurityAccess.getInstance(applicationContext)
+        if (iDriveConnectionStatus.isConnected &&
+            securityAccess.isConnected() &&
+            thread?.isAlive != true) {
+
+            L.loadResources(applicationContext)
+            thread = CarThread("ScreenMirroring") {
+                app = CarApp(
+                    iDriveConnectionStatus,
+                    securityAccess,
+                    CarAppAssetResources(applicationContext, "smartthings"),
+                    ScreenMirrorProvider(thread?.handler!!)
+                ) {
+                    // start up the notification when we enter the app
+                    val foreground = NotificationService.shouldBeForeground()
+                    NotificationService.startNotification(applicationContext, foreground)
+                }
+            }
+            thread?.start()
+        }
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+
+        app?.onDestroy()
+        NotificationService.stopNotification(applicationContext)
+    }
+}