feat: add app licenses screen

app/.gitignore

@@ -1,2 +1,3 @@
 /build
-/release
+/release
+/src/main/assets/licenses.json

app/build.gradle.kts

@@ -6,6 +6,7 @@ plugins {
     alias(libs.plugins.ksp)
     alias(libs.plugins.compose.compiler)
     alias(libs.plugins.grgit)
+    alias(libs.plugins.licensee)
 }
 
 val versionFile = file("$rootDir/versionCode.txt")
@@ -139,6 +140,14 @@ android {
         buildConfig = true
     }
     packaging { resources { excludes += "/META-INF/{AL2.0,LGPL2.1}" } }
+
+    licensee {
+        Constants.allowedLicenses.forEach { allow(it) }
+        allowUrl(Constants.XZING_LICENSE_URL)
+
+        // Fix for qrcode-kotlin (MIT, custom URL)
+        allowUrl("https://rafaellins.mit-license.org/2021/")
+    }
 }
 
 dependencies {
@@ -227,7 +236,6 @@ dependencies {
     // util
     implementation(libs.qrcode.kotlin)
     implementation(libs.semver4j)
-    implementation(libs.markdown.compose)
 
     // Ktor
     implementation(libs.ktor.client.core)
@@ -263,3 +271,17 @@ tasks.whenTaskAdded {
         dependsOn(incrementVersionCode)
     }
 }
+
+tasks.register<Copy>("copyLicenseeJsonToAssets") {
+    dependsOn("licensee")
+
+    val outputAssets = layout.projectDirectory.dir("src/main/assets")
+
+    from(layout.buildDirectory.file("reports/licensee/androidFdroidRelease/artifacts.json")) {
+        rename("artifacts.json", "licenses.json")
+    }
+
+    into(outputAssets)
+}
+
+tasks.named("preBuild") { dependsOn("copyLicenseeJsonToAssets") }

app/src/main/java/com/zaneschepke/wireguardautotunnel/MainActivity.kt

@@ -67,6 +67,7 @@ import com.zaneschepke.wireguardautotunnel.ui.screens.settings.appearance.langua
 import com.zaneschepke.wireguardautotunnel.ui.screens.settings.killswitch.KillSwitchScreen
 import com.zaneschepke.wireguardautotunnel.ui.screens.settings.logs.LogsScreen
 import com.zaneschepke.wireguardautotunnel.ui.screens.support.SupportScreen
+import com.zaneschepke.wireguardautotunnel.ui.screens.support.license.LicenseScreen
 import com.zaneschepke.wireguardautotunnel.ui.theme.WireguardAutoTunnelTheme
 import com.zaneschepke.wireguardautotunnel.util.extensions.isRunningOnTv
 import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
@@ -283,6 +284,7 @@ class MainActivity : AppCompatActivity() {
                                     composable<Route.Support> {
                                         SupportScreen(appViewModel = viewModel)
                                     }
+                                    composable<Route.License> { LicenseScreen() }
                                     composable<Route.AutoTunnelAdvanced> {
                                         AutoTunnelAdvancedScreen(appUiState, viewModel)
                                     }

app/src/main/java/com/zaneschepke/wireguardautotunnel/data/repository/GitHubUpdateRepository.kt

@@ -47,13 +47,13 @@ class GitHubUpdateRepository(
         withContext(ioDispatcher) {
             try {
                 // clean up old files
-                context.cacheDir?.listFiles()?.forEach { file ->
+                context.getExternalFilesDir(null)?.listFiles()?.forEach { file ->
                     if (file.extension == "apk") file.delete()
                 }
 
                 val response: HttpResponse = httpClient.get(apkUrl)
 
-                val apkFile = File(context.cacheDir, fileName)
+                val apkFile = File(context.getExternalFilesDir(null), fileName)
 
                 val channel: ByteReadChannel = response.bodyAsChannel()
                 val totalBytes: Long = response.contentLength() ?: -1L

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/Route.kt

@@ -31,6 +31,8 @@ sealed class Route {
 
     @Serializable data object Scanner : Route()
 
+    @Serializable data object License : Route()
+
     @Serializable data class Config(val id: Int) : Route()
 
     @Serializable

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/navigation/components/currentNavBackStackEntryAsNavBarState.kt

@@ -213,6 +213,15 @@ fun currentNavBackStackEntryAsNavBarState(
                         route = Route.Support,
                     )
 
+                backStackEntry.isCurrentRoute(Route.License::class) -> {
+                    NavBarState(
+                        showTop = true,
+                        showBottom = true,
+                        topTitle = { Text(stringResource(R.string.licenses)) },
+                        route = Route.License,
+                    )
+                }
+
                 backStackEntry.isCurrentRoute(Route.AutoTunnelAdvanced::class) ||
                     backStackEntry.isCurrentRoute(Route.SettingsAdvanced::class) ->
                     NavBarState(

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/support/SupportScreen.kt

@@ -15,7 +15,7 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import com.zaneschepke.wireguardautotunnel.BuildConfig
+import com.google.zxing.client.android.BuildConfig
 import com.zaneschepke.wireguardautotunnel.R
 import com.zaneschepke.wireguardautotunnel.ui.common.SectionDivider
 import com.zaneschepke.wireguardautotunnel.ui.common.dialog.InfoDialog
@@ -29,7 +29,6 @@ import com.zaneschepke.wireguardautotunnel.util.extensions.requestInstallPackage
 import com.zaneschepke.wireguardautotunnel.util.extensions.showToast
 import com.zaneschepke.wireguardautotunnel.viewmodel.AppViewModel
 import com.zaneschepke.wireguardautotunnel.viewmodel.event.AppEvent
-import dev.jeziellago.compose.markdowntext.MarkdownText
 
 @Composable
 fun SupportScreen(viewModel: SupportViewModel = hiltViewModel(), appViewModel: AppViewModel) {
@@ -63,8 +62,13 @@ fun SupportScreen(viewModel: SupportViewModel = hiltViewModel(), appViewModel: A
             },
             title = { Text(stringResource(R.string.update_available)) },
             body = {
-                Column {
-                    MarkdownText(uiState.appUpdate?.releaseNotes ?: "")
+                Column(
+                    horizontalAlignment = Alignment.Start,
+                    verticalArrangement = Arrangement.spacedBy(12.dp, Alignment.Top),
+                    modifier = Modifier.fillMaxWidth(),
+                ) {
+                    Text(uiState.appUpdate?.version ?: "")
+                    Text(uiState.appUpdate?.releaseNotes ?: "")
                     if (uiState.isLoading) {
                         LinearProgressIndicator(
                             progress = { uiState.downloadProgress },

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/support/components/GeneralSupportOptions.kt

@@ -1,20 +1,24 @@
 package com.zaneschepke.wireguardautotunnel.ui.screens.support.components
 
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Balance
 import androidx.compose.material.icons.filled.Book
 import androidx.compose.material.icons.filled.Policy
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.res.stringResource
 import com.zaneschepke.wireguardautotunnel.R
+import com.zaneschepke.wireguardautotunnel.ui.Route
 import com.zaneschepke.wireguardautotunnel.ui.common.button.ForwardButton
 import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SelectionItem
 import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SelectionItemLabel
 import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SelectionLabelType
 import com.zaneschepke.wireguardautotunnel.ui.common.button.surface.SurfaceSelectionGroupButton
+import com.zaneschepke.wireguardautotunnel.ui.navigation.LocalNavController
 import com.zaneschepke.wireguardautotunnel.util.extensions.openWebUrl
 
 @Composable
 fun GeneralSupportOptions(context: android.content.Context) {
+    val navController = LocalNavController.current
     SurfaceSelectionGroupButton(
         items =
             buildList {
@@ -54,6 +58,19 @@ fun GeneralSupportOptions(context: android.content.Context) {
                         },
                     )
                 )
+                add(
+                    SelectionItem(
+                        leadingIcon = Icons.Filled.Balance,
+                        title = {
+                            SelectionItemLabel(
+                                stringResource(R.string.licenses),
+                                SelectionLabelType.TITLE,
+                            )
+                        },
+                        trailing = { ForwardButton { navController.navigate(Route.License) } },
+                        onClick = { navController.navigate(Route.License) },
+                    )
+                )
             }
     )
 }

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/support/license/License.kt

@@ -0,0 +1,15 @@
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class LicenseFileEntry(
+    val groupId: String,
+    val artifactId: String,
+    val version: String,
+    val name: String,
+    val spdxLicenses: List<SpdxLicense> = emptyList(),
+    val scm: Scm? = null,
+)
+
+@Serializable data class SpdxLicense(val identifier: String, val name: String, val url: String)
+
+@Serializable data class Scm(val url: String)

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/support/license/LicenseScreen.kt

@@ -0,0 +1,45 @@
+package com.zaneschepke.wireguardautotunnel.ui.screens.support.license
+
+import LicenseFileEntry
+import android.content.Context
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import com.zaneschepke.wireguardautotunnel.ui.screens.support.license.components.LicenseList
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import kotlinx.serialization.json.Json
+
+@Composable
+fun LicenseScreen() {
+    val context = LocalContext.current
+    var licenses by remember { mutableStateOf<List<LicenseFileEntry>>(emptyList()) }
+
+    LaunchedEffect(Unit) { licenses = loadLicenseeJson(context) }
+
+    if (licenses.isEmpty()) {
+        Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+            CircularProgressIndicator()
+        }
+    } else {
+        LicenseList(licenses)
+    }
+}
+
+suspend fun loadLicenseeJson(context: Context): List<LicenseFileEntry> {
+    return withContext(Dispatchers.IO) {
+        val json = Json { ignoreUnknownKeys = true }
+
+        val jsonResult = context.assets.open("licenses.json").bufferedReader().use { it.readText() }
+        json.decodeFromString(jsonResult)
+    }
+}

app/src/main/java/com/zaneschepke/wireguardautotunnel/ui/screens/support/license/components/LicenseList.kt

@@ -0,0 +1,44 @@
+package com.zaneschepke.wireguardautotunnel.ui.screens.support.license.components
+
+import LicenseFileEntry
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun LicenseList(licenses: List<LicenseFileEntry>) {
+    LazyColumn(modifier = Modifier.fillMaxSize().padding(16.dp)) {
+        items(licenses) { entry ->
+            Column(modifier = Modifier.padding(bottom = 12.dp)) {
+                Text(
+                    text = "${entry.name} (${entry.version})",
+                    style = MaterialTheme.typography.titleSmall,
+                )
+
+                entry.spdxLicenses.forEach { license ->
+                    Text(
+                        text = license.name,
+                        style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.primary,
+                    )
+                }
+
+                entry.scm?.url?.let { scmUrl ->
+                    Text(
+                        text = scmUrl,
+                        style = MaterialTheme.typography.labelSmall,
+                        modifier = Modifier.padding(top = 4.dp),
+                        color = MaterialTheme.colorScheme.secondary,
+                    )
+                }
+            }
+        }
+    }
+}

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

@@ -252,4 +252,5 @@
     <string name="permission_required">Permission Required</string>
     <string name="install_updated_permission">This app needs permission to install updates.</string>
     <string name="allow">Allow</string>
+    <string name="licenses">Licenses</string>
 </resources>

build.gradle.kts

@@ -7,6 +7,7 @@ plugins {
 	alias(libs.plugins.androidLibrary) apply false
 	alias(libs.plugins.compose.compiler) apply false
 	alias(libs.plugins.ktfmt)
+	alias(libs.plugins.licensee) apply false
 }
 
 subprojects {

buildSrc/src/main/kotlin/Constants.kt

@@ -1,7 +1,7 @@
 object Constants {
-	const val VERSION_NAME = "3.8.3"
+	const val VERSION_NAME = "3.8.2"
     const val JVM_TARGET = "17"
-    const val VERSION_CODE = 38300
+    const val VERSION_CODE = 38200
     const val TARGET_SDK = 35
     const val MIN_SDK = 26
     const val APP_ID = "com.zaneschepke.wireguardautotunnel"
@@ -16,4 +16,7 @@ object Constants {
     const val NIGHTLY = "nightly"
 	const val PRERELEASE = "prerelease"
     const val TYPE = "type"
+
+    val allowedLicenses = listOf("MIT", "Apache-2.0", "BSD-3-Clause")
+    const val XZING_LICENSE_URL: String = "https://github.com/journeyapps/zxing-android-embedded/blob/master/COPYING"
 }

gradle/libs.versions.toml

@@ -38,6 +38,7 @@ gradlePlugins-grgit = "5.3.0"
 material = "1.12.0"
 storage = "1.5.0"
 ktfmt = "0.22.0"
+licensee = "1.12.0"
 
 
 [libraries]
@@ -117,4 +118,5 @@ androidLibrary = { id = "com.android.library", version.ref = "androidGradlePlugi
 compose-compiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
 grgit = { id = "org.ajoberstar.grgit.service", version.ref = "gradlePlugins-grgit" }
 ktfmt = { id = "com.ncorti.ktfmt.gradle", version.ref = "ktfmt" }
+licensee = { id = "app.cash.licensee", version.ref = "licensee" }