feat(KAN-53): add Android app and platform integration

2026-09-26 20:45:58 +02:00
parent 39d0887180
commit 32dac91620
35 changed files with 1829 additions and 460 deletions
@@ -0,0 +1,6 @@
+/src/main/**/generated
+/src/main/jniLibs/**/*.so
+/src/main/assets/tauri.conf.json
+/tauri.build.gradle.kts
+/proguard-tauri.pro
+/tauri.properties
@@ -0,0 +1,76 @@
+import java.util.Properties
+
+plugins {
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+    id("rust")
+}
+
+val tauriProperties = Properties().apply {
+    val propFile = file("tauri.properties")
+    if (propFile.exists()) {
+        propFile.inputStream().use { load(it) }
+    }
+}
+
+android {
+    compileSdk = 36
+    buildToolsVersion = "36.0.0"
+    namespace = "de.kanbangit.desktop"
+    defaultConfig {
+        manifestPlaceholders["usesCleartextTraffic"] = "false"
+        applicationId = "de.kanbangit.desktop"
+        minSdk = 24
+        targetSdk = 36
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        // Tauri exits the process when its last activity is destroyed; report results first.
+        testInstrumentationRunnerArguments["waitForActivitiesToComplete"] = "false"
+        versionCode = tauriProperties.getProperty("tauri.android.versionCode", "1").toInt()
+        versionName = tauriProperties.getProperty("tauri.android.versionName", "1.0")
+    }
+    buildTypes {
+        getByName("debug") {
+            manifestPlaceholders["usesCleartextTraffic"] = "false"
+            isDebuggable = true
+            isJniDebuggable = true
+            isMinifyEnabled = false
+            packaging {
+                jniLibs.keepDebugSymbols.add("*/arm64-v8a/*.so")
+                jniLibs.keepDebugSymbols.add("*/armeabi-v7a/*.so")
+                jniLibs.keepDebugSymbols.add("*/x86/*.so")
+                jniLibs.keepDebugSymbols.add("*/x86_64/*.so")
+            }
+        }
+        getByName("release") {
+            isMinifyEnabled = true
+            proguardFiles(
+                *fileTree(".") { include("**/*.pro") }
+                    .plus(getDefaultProguardFile("proguard-android-optimize.txt"))
+                    .toList().toTypedArray()
+            )
+        }
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+    buildFeatures {
+        buildConfig = true
+    }
+}
+
+rust {
+    rootDirRel = "../../../"
+}
+
+dependencies {
+    implementation("androidx.webkit:webkit:1.14.0")
+    implementation("androidx.appcompat:appcompat:1.7.1")
+    implementation("androidx.activity:activity-ktx:1.10.1")
+    implementation("com.google.android.material:material:1.12.0")
+    implementation("androidx.lifecycle:lifecycle-process:2.10.0")
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.1.4")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.0")
+}
+
+apply(from = "tauri.build.gradle.kts")
@@ -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
@@ -0,0 +1,116 @@
+package de.kanbangit.desktop
+
+import android.content.Context
+import android.os.SystemClock
+import android.view.InputDevice
+import android.view.MotionEvent
+import android.view.View
+import android.webkit.CookieManager
+import android.webkit.WebView
+import androidx.lifecycle.Lifecycle
+import androidx.test.core.app.ActivityScenario
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import org.junit.Assert.*
+import org.junit.Test
+import org.junit.runner.RunWith
+import java.util.concurrent.CountDownLatch
+import java.util.concurrent.TimeUnit
+import java.util.concurrent.atomic.AtomicReference
+
+@RunWith(AndroidJUnit4::class)
+class PlatformTest {
+    private val instrumentation = InstrumentationRegistry.getInstrumentation()
+
+    private fun evaluate(view: WebView, script: String): String {
+        val result = AtomicReference<String>()
+        val latch = CountDownLatch(1)
+        instrumentation.runOnMainSync { view.evaluateJavascript(script) { result.set(it); latch.countDown() } }
+        assertTrue("JavaScript callback timed out", latch.await(10, TimeUnit.SECONDS))
+        return result.get()
+    }
+
+    private fun waitFor(condition: () -> Boolean) {
+        val end = System.currentTimeMillis() + 25000
+        while (System.currentTimeMillis() < end) {
+            if (condition()) return
+            Thread.sleep(100)
+        }
+        fail("Platform condition timed out")
+    }
+
+    private fun tapCenter(view: View) {
+        val position = IntArray(2)
+        instrumentation.runOnMainSync {
+            view.getLocationOnScreen(position)
+            position[0] += view.width / 2
+            position[1] += view.height / 2
+        }
+        val downTime = SystemClock.uptimeMillis()
+        for (action in listOf(MotionEvent.ACTION_DOWN, MotionEvent.ACTION_UP)) {
+            val event = MotionEvent.obtain(downTime, SystemClock.uptimeMillis(), action, position[0].toFloat(), position[1].toFloat(), 0)
+            event.source = InputDevice.SOURCE_TOUCHSCREEN
+            try {
+                instrumentation.sendPointerSync(event)
+            } finally {
+                event.recycle()
+            }
+        }
+        instrumentation.waitForIdleSync()
+    }
+
+    @Test fun workspacePreservesFormsAndIsolatesServers() {
+        instrumentation.targetContext.getSharedPreferences("workspace", Context.MODE_PRIVATE).edit().clear().commit()
+        val scenario = ActivityScenario.launch(MainActivity::class.java)
+        Thread.sleep(1500)
+        scenario.onActivity { it.openWorkspace("https://kanbangit.de/") }
+        val remote = AtomicReference<WebView>()
+        waitFor {
+            var visible = false
+            scenario.onActivity { remote.set(it.workspace); visible = it.workspace?.visibility == View.VISIBLE }
+            visible && remote.get() != null && evaluate(remote.get(), "document.readyState === 'complete' && document.querySelector('#app')?.innerText.trim().length > 100") == "true"
+        }
+        val view = remote.get()
+        assertEquals("true", evaluate(view, "typeof window.nativeLauncher === 'undefined' && typeof window.__TAURI_INTERNALS__ === 'undefined'"))
+        assertEquals("true", evaluate(view, """
+            (() => {
+                const input = document.createElement('input');
+                input.id = 'kan53-input';
+                input.value = 'retained form';
+                document.body.append(input);
+                const button = document.createElement('button');
+                button.style.cssText = 'position:fixed;inset:0;width:100%;height:100%;z-index:2147483647';
+                button.textContent = 'Navigate';
+                button.onclick = () => {
+                    history.pushState({}, '', '/kan53-history');
+                    button.remove();
+                };
+                document.body.append(button);
+                return true;
+            })()
+        """.trimIndent()))
+        tapCenter(view)
+        waitFor { evaluate(view, "location.pathname === '/kan53-history'") == "true" }
+        waitFor {
+            var canGoBack = false
+            scenario.onActivity { canGoBack = view.canGoBack() }
+            canGoBack
+        }
+        scenario.moveToState(Lifecycle.State.CREATED)
+        scenario.moveToState(Lifecycle.State.RESUMED)
+        assertEquals("\"retained form\"", evaluate(view, "document.querySelector('#kan53-input').value"))
+        scenario.onActivity { it.onBackPressedDispatcher.onBackPressed() }
+        waitFor { evaluate(view, "location.pathname !== '/kan53-history'") == "true" }
+        assertEquals("\"retained form\"", evaluate(view, "document.querySelector('#kan53-input').value"))
+        evaluate(view, "document.cookie = 'kan53_fixture=secret; Path=/; Secure; SameSite=Lax'; localStorage.setItem('kan53_fixture', 'secret')")
+        scenario.onActivity { it.openWorkspace("https://127.0.0.1:9/") }
+        waitFor {
+            val cookie = AtomicReference<String>()
+            instrumentation.runOnMainSync { cookie.set(CookieManager.getInstance().getCookie("https://kanbangit.de/")) }
+            cookie.get()?.contains("kan53_fixture") != true
+        }
+        scenario.onActivity { assertNotSame(view, it.workspace) }
+        // Let instrumentation finish the process after reporting, rather than exiting via Tauri.
+        scenario.moveToState(Lifecycle.State.CREATED)
+    }
+}
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <application
+        android:allowBackup="false"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:icon="@drawable/kanbangit"
+        android:label="@string/app_name"
+        android:theme="@style/Theme.kanbangit_native"
+        android:usesCleartextTraffic="${usesCleartextTraffic}">
+        <activity
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout|uiMode"
+            android:launchMode="singleTask"
+            android:label="@string/main_activity_title"
+            android:name=".MainActivity"
+            android:windowSoftInputMode="adjustResize"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <provider
+          android:name="androidx.core.content.FileProvider"
+          android:authorities="${applicationId}.fileprovider"
+          android:exported="false"
+          android:grantUriPermissions="true">
+          <meta-data
+            android:name="android.support.FILE_PROVIDER_PATHS"
+            android:resource="@xml/file_paths" />
+        </provider>
+    </application>
+</manifest>
@@ -0,0 +1,306 @@
+package de.kanbangit.desktop
+
+import android.annotation.SuppressLint
+import android.content.res.Configuration
+import android.graphics.Bitmap
+import android.net.Uri
+import android.net.http.SslError
+import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
+import android.view.View
+import android.view.ViewGroup
+import android.webkit.CookieManager
+import android.webkit.SslErrorHandler
+import android.webkit.WebChromeClient
+import android.webkit.WebResourceError
+import android.webkit.WebResourceRequest
+import android.webkit.WebResourceResponse
+import android.webkit.WebSettings
+import android.webkit.WebStorage
+import android.webkit.WebView
+import android.webkit.WebViewClient
+import android.widget.Button
+import android.widget.FrameLayout
+import android.widget.LinearLayout
+import android.widget.TextView
+import androidx.activity.OnBackPressedCallback
+import androidx.activity.enableEdgeToEdge
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.webkit.WebViewCompat
+import androidx.webkit.WebViewFeature
+import org.json.JSONObject
+
+class MainActivity : TauriActivity() {
+    private val handler = Handler(Looper.getMainLooper())
+    private val preferences by lazy { getSharedPreferences("workspace", MODE_PRIVATE) }
+    private lateinit var launcher: WebView
+    private lateinit var root: LinearLayout
+    private lateinit var content: FrameLayout
+    private lateinit var settings: Button
+    internal var workspace: WebView? = null
+        private set
+    private var server = NavigationPolicy.DEFAULT_SERVER
+    private var phase = "idle"
+    private var ready = false
+    private var revision = 0
+    private var launcherVisible = true
+    private var keyboardVisible = false
+    private var initialized = false
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        enableEdgeToEdge()
+        super.onCreate(savedInstanceState)
+        onBackPressedDispatcher.addCallback(this, object : OnBackPressedCallback(true) {
+            override fun handleOnBackPressed() {
+                when (NavigationPolicy.backAction(keyboardVisible, launcherVisible, ready, workspace?.canGoBack() == true)) {
+                    "keyboard" -> WindowCompat.getInsetsController(window, window.decorView).hide(WindowInsetsCompat.Type.ime())
+                    "resume" -> showWorkspace()
+                    "history" -> workspace?.goBack()
+                    "settings" -> showLauncher()
+                    else -> moveTaskToBack(true)
+                }
+            }
+        })
+    }
+
+    override fun onWebViewCreate(webView: WebView) {
+        launcher = webView
+        if (WebViewFeature.isFeatureSupported(WebViewFeature.WEB_MESSAGE_LISTENER)) {
+            WebViewCompat.addWebMessageListener(launcher, "nativeLauncher", setOf(NavigationPolicy.LAUNCHER_ORIGIN)) {
+                _, message, origin, mainFrame, _ ->
+                if (mainFrame && origin.toString().trimEnd('/') == NavigationPolicy.LAUNCHER_ORIGIN) {
+                    launcher.post { handleAction(message.data.orEmpty()) }
+                }
+            }
+        }
+        launcher.post { attachShell() }
+    }
+
+    private fun attachShell() {
+        if (::root.isInitialized) return
+        (launcher.parent as? ViewGroup)?.removeView(launcher)
+        root = LinearLayout(this).apply { orientation = LinearLayout.VERTICAL }
+        settings = Button(this).apply {
+            text = getString(R.string.server_settings)
+            isAllCaps = false
+            visibility = View.GONE
+            setOnClickListener { showLauncher() }
+        }
+        root.addView(settings, LinearLayout.LayoutParams(-1, -2))
+        content = FrameLayout(this)
+        content.addView(launcher, FrameLayout.LayoutParams(-1, -1))
+        root.addView(content, LinearLayout.LayoutParams(-1, 0, 1f))
+        setContentView(root)
+        ViewCompat.setOnApplyWindowInsetsListener(root) { view, insets ->
+            val safe = insets.getInsets(WindowInsetsCompat.Type.systemBars() or WindowInsetsCompat.Type.displayCutout())
+            val keyboard = insets.getInsets(WindowInsetsCompat.Type.ime())
+            keyboardVisible = insets.isVisible(WindowInsetsCompat.Type.ime())
+            view.setPadding(safe.left, safe.top, safe.right, maxOf(safe.bottom, keyboard.bottom))
+            WindowInsetsCompat.CONSUMED
+        }
+        ViewCompat.requestApplyInsets(root)
+        if (!WebViewFeature.isFeatureSupported(WebViewFeature.WEB_MESSAGE_LISTENER)) {
+            content.removeAllViews()
+            content.addView(TextView(this).apply { text = getString(R.string.update_webview) })
+        }
+    }
+
+    private fun handleAction(value: String) {
+        attachShell()
+        val url = Uri.parse(value)
+        if (url.scheme != "https" || url.host != "tauri.localhost" || url.port != -1 || url.userInfo != null) return
+        when (url.path) {
+            "/action/ready" -> {
+                if (initialized) return
+                initialized = true
+                val saved = preferences.getString("server", null)
+                server = saved?.let(NavigationPolicy::installation) ?: NavigationPolicy.DEFAULT_SERVER
+                updateLauncher()
+                if (saved != null) openWorkspace(server)
+            }
+            "/action/open" -> openWorkspace(url.getQueryParameter("server").orEmpty())
+            "/action/resume" -> if (ready) showWorkspace()
+        }
+    }
+
+    internal fun openWorkspace(input: String) {
+        val address = NavigationPolicy.installation(input)
+        if (address == null) {
+            phase = "invalidServer"
+            showLauncher()
+            return
+        }
+        if (phase == "connecting") return
+        if (address == server && ready) {
+            if (phase == "connectionError") {
+                phase = "connecting"
+                workspace?.let { startTimeout(it); it.reload() }
+                updateLauncher()
+                return
+            }
+            showWorkspace()
+            return
+        }
+        val changed = address != preferences.getString("server", null)
+        val clearSession = changed || preferences.getBoolean("clearing", false)
+        if (!preferences.edit().putString("server", address).putBoolean("clearing", clearSession).commit()) {
+            phase = "storageError"
+            showLauncher()
+            return
+        }
+        server = address
+        ready = false
+        phase = "connecting"
+        revision++
+        workspace?.let { old ->
+            content.removeView(old)
+            old.stopLoading()
+            if (clearSession) old.clearCache(true)
+            old.destroy()
+        }
+        workspace = null
+        updateLauncher()
+        if (clearSession) {
+            WebStorage.getInstance().deleteAllData()
+            CookieManager.getInstance().removeAllCookies {
+                CookieManager.getInstance().flush()
+                if (!preferences.edit().putBoolean("clearing", false).commit()) {
+                    phase = "storageError"
+                    showLauncher()
+                } else if (!isDestroyed) {
+                    createWorkspace()
+                }
+            }
+        } else {
+            createWorkspace()
+        }
+    }
+
+    @SuppressLint("SetJavaScriptEnabled")
+    private fun createWorkspace() {
+        val remote = WebView(this)
+        workspace = remote
+        remote.settings.apply {
+            javaScriptEnabled = true
+            domStorageEnabled = true
+            allowFileAccess = false
+            allowContentAccess = false
+            mixedContentMode = WebSettings.MIXED_CONTENT_NEVER_ALLOW
+            javaScriptCanOpenWindowsAutomatically = false
+            setSupportMultipleWindows(true)
+        }
+        CookieManager.getInstance().setAcceptThirdPartyCookies(remote, false)
+        remote.webChromeClient = WebChromeClient()
+        remote.webViewClient = object : WebViewClient() {
+            override fun shouldOverrideUrlLoading(view: WebView, request: WebResourceRequest): Boolean =
+                !NavigationPolicy.allows(server, request.url.toString())
+
+            override fun onPageStarted(view: WebView, url: String, favicon: Bitmap?) {
+                if (!NavigationPolicy.allows(server, url)) {
+                    view.stopLoading()
+                    fail(view)
+                    return
+                }
+                phase = "connecting"
+                startTimeout(view)
+                updateLauncher()
+            }
+
+            override fun onPageFinished(view: WebView, url: String) {
+                if (workspace !== view || phase != "connecting" || !NavigationPolicy.allows(server, url)) return
+                revision++
+                phase = "connected"
+                val firstLoad = !ready
+                ready = true
+                CookieManager.getInstance().flush()
+                updateLauncher()
+                if (firstLoad) showWorkspace()
+            }
+
+            override fun onReceivedError(view: WebView, request: WebResourceRequest, error: WebResourceError) {
+                if (request.isForMainFrame) fail(view)
+            }
+
+            override fun onReceivedHttpError(view: WebView, request: WebResourceRequest, response: WebResourceResponse) {
+                if (request.isForMainFrame && response.statusCode >= 500) fail(view)
+            }
+
+            override fun onReceivedSslError(view: WebView, sslHandler: SslErrorHandler, error: SslError) {
+                sslHandler.cancel()
+                fail(view)
+            }
+        }
+        remote.visibility = View.GONE
+        content.addView(remote, 0, FrameLayout.LayoutParams(-1, -1))
+        startTimeout(remote)
+        remote.loadUrl(server)
+    }
+
+    private fun startTimeout(view: WebView) {
+        val current = ++revision
+        handler.postDelayed({
+            if (current == revision && phase == "connecting" && workspace === view) {
+                view.stopLoading()
+                fail(view)
+            }
+        }, 15000)
+    }
+
+    private fun fail(view: WebView) {
+        if (workspace !== view) return
+        revision++
+        phase = "connectionError"
+        showLauncher()
+    }
+
+    private fun updateLauncher() {
+        val query = Uri.Builder().appendQueryParameter("server", server)
+            .appendQueryParameter("phase", phase).appendQueryParameter("ready", ready.toString())
+            .appendQueryParameter("platform", "android").build().encodedQuery.orEmpty()
+        launcher.evaluateJavascript("window.updateLauncher?.(${JSONObject.quote(query)})", null)
+    }
+
+    private fun showLauncher() {
+        updateLauncher()
+        launcherVisible = true
+        launcher.visibility = View.VISIBLE
+        workspace?.visibility = View.GONE
+        settings.visibility = View.GONE
+        launcher.requestFocus()
+    }
+
+    private fun showWorkspace() {
+        launcherVisible = false
+        launcher.visibility = View.GONE
+        workspace?.visibility = View.VISIBLE
+        settings.visibility = View.VISIBLE
+        workspace?.requestFocus()
+    }
+
+    override fun onPause() {
+        workspace?.onPause()
+        CookieManager.getInstance().flush()
+        super.onPause()
+    }
+
+    override fun onResume() {
+        super.onResume()
+        workspace?.onResume()
+    }
+
+    override fun onConfigurationChanged(newConfig: Configuration) {
+        super.onConfigurationChanged(newConfig)
+        enableEdgeToEdge()
+        if (::root.isInitialized) ViewCompat.requestApplyInsets(root)
+    }
+
+    override fun onDestroy() {
+        handler.removeCallbacksAndMessages(null)
+        workspace?.destroy()
+        workspace = null
+        super.onDestroy()
+    }
+}
@@ -0,0 +1,41 @@
+package de.kanbangit.desktop
+
+import java.net.URI
+import java.util.Locale
+
+object NavigationPolicy {
+    const val DEFAULT_SERVER = "https://kanbangit.de/"
+    const val LAUNCHER_ORIGIN = "https://tauri.localhost"
+
+    fun installation(input: String): String? = runCatching {
+        val trimmed = input.trim()
+        require(trimmed.none { it.isISOControl() || it == '\\' })
+        val uri = URI(trimmed)
+        require(uri.scheme.equals("https", ignoreCase = true))
+        require(!uri.host.isNullOrBlank() && uri.rawUserInfo == null)
+        require(uri.rawQuery == null && uri.rawFragment == null)
+        require(uri.port == -1 || uri.port in 1..65535)
+        require(!uri.host.equals("tauri.localhost", ignoreCase = true))
+        val port = if (uri.port == -1 || uri.port == 443) "" else ":${uri.port}"
+        val path = uri.rawPath.orEmpty().let { if (it.endsWith('/')) it else "$it/" }
+        "https://${uri.host.lowercase(Locale.ROOT)}$port$path"
+    }.getOrNull()
+
+    fun allows(server: String, destination: String): Boolean = runCatching {
+        val base = URI(server)
+        val target = URI(destination)
+        target.scheme.equals("https", ignoreCase = true) &&
+            target.host.equals(base.host, ignoreCase = true) &&
+            (if (target.port == -1) 443 else target.port) ==
+            (if (base.port == -1) 443 else base.port) &&
+            target.rawUserInfo == null && !destination.contains('\\')
+    }.getOrDefault(false)
+
+    fun backAction(keyboard: Boolean, launcher: Boolean, ready: Boolean, history: Boolean): String = when {
+        keyboard -> "keyboard"
+        launcher && ready -> "resume"
+        !launcher && history -> "history"
+        !launcher -> "settings"
+        else -> "background"
+    }
+}
@@ -0,0 +1,8 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="48dp" android:height="48dp"
+    android:viewportWidth="64" android:viewportHeight="64">
+    <path android:fillColor="#22c55e" android:pathData="M12,0 H52 Q64,0 64,12 V52 Q64,64 52,64 H12 Q0,64 0,52 V12 Q0,0 12,0 Z" />
+    <path android:fillColor="@android:color/transparent" android:strokeColor="#004b1e"
+        android:strokeWidth="3" android:strokeLineCap="round" android:strokeLineJoin="round"
+        android:pathData="M19,16 H45 Q48,16 48,19 V45 Q48,48 45,48 H19 Q16,48 16,45 V19 Q16,16 19,16 Z M27,16 V48 M37,16 V48" />
+</vector>
@@ -0,0 +1,6 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.kanbangit_native" parent="Theme.MaterialComponents.DayNight.NoActionBar">
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
@@ -0,0 +1,6 @@
+<resources>
+    <string name="app_name">"KanbanGit"</string>
+    <string name="main_activity_title">"KanbanGit"</string>
+    <string name="server_settings">Server settings</string>
+    <string name="update_webview">Update Android System WebView to connect to your workspace.</string>
+</resources>
@@ -0,0 +1,6 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.kanbangit_native" parent="Theme.MaterialComponents.DayNight.NoActionBar">
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<data-extraction-rules>
+    <cloud-backup>
+        <exclude domain="root" path="." />
+        <exclude domain="sharedpref" path="." />
+        <exclude domain="database" path="." />
+        <exclude domain="file" path="." />
+        <exclude domain="external" path="." />
+    </cloud-backup>
+    <device-transfer>
+        <exclude domain="root" path="." />
+        <exclude domain="sharedpref" path="." />
+        <exclude domain="database" path="." />
+        <exclude domain="file" path="." />
+        <exclude domain="external" path="." />
+    </device-transfer>
+</data-extraction-rules>
@@ -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>
@@ -0,0 +1,33 @@
+package de.kanbangit.desktop
+
+import org.junit.Assert.*
+import org.junit.Test
+
+class NavigationPolicyTest {
+    @Test fun normalizesAddressesAndRejectsCredentialsAndUnsafeSchemes() {
+        assertEquals("https://example.com/kanban/", NavigationPolicy.installation(" HTTPS://Example.com:443/kanban "))
+        assertEquals("https://[::1]:8443/", NavigationPolicy.installation("https://[::1]:8443"))
+        for (value in listOf("http://example.com", "https:example.com", "https://user:pass@example.com", "https://example.com/?token=x", "https://example.com/#x", "https://exa\nmple.com", "https://example.com\\other", "https://example.com:99999", "https://tauri.localhost/", "file:///etc/passwd", "")) {
+            assertNull(value, NavigationPolicy.installation(value))
+        }
+    }
+
+    @Test fun allowsLoginTwoFactorAndHistoryOnlyOnTheSelectedOrigin() {
+        val server = "https://example.com:8443/app/"
+        for (path in listOf("/login", "/two-factor-challenge", "/projects/1?ticket=53#details")) {
+            assertTrue(NavigationPolicy.allows(server, "https://example.com:8443$path"))
+        }
+        for (value in listOf("https://example.com/", "http://example.com:8443/", "https://other.example.com:8443/", "https://user@example.com:8443/", "https://tauri.localhost/action/open", "javascript:alert(1)", "intent://example.com", "file:///etc/passwd")) {
+            assertFalse(value, NavigationPolicy.allows(server, value))
+        }
+        assertTrue(NavigationPolicy.allows("https://example.com/", "https://example.com:443/login"))
+    }
+
+    @Test fun backClosesKeyboardBeforeNavigatingAndPreservesTheWorkspace() {
+        assertEquals("keyboard", NavigationPolicy.backAction(true, false, true, true))
+        assertEquals("resume", NavigationPolicy.backAction(false, true, true, true))
+        assertEquals("history", NavigationPolicy.backAction(false, false, true, true))
+        assertEquals("settings", NavigationPolicy.backAction(false, false, true, false))
+        assertEquals("background", NavigationPolicy.backAction(false, true, false, false))
+    }
+}