app: installable APK — core-probe (device-tier) + Compose UI

First assembling build of the production app. Android toolchain mirrors
the prober (AGP 9 built-in Kotlin; applying kotlin.android too
double-registers the kotlin extension — the one gotcha).

core-probe (Android lib): Probe→core-measurement Test abstraction;
NetworkInventory (LinkProperties→networks[]), LinkSnapshotProbe,
per-network IcmpProbe (ported from the prober's validated logic).

app (Compose): RunViewModel orchestrates probes into a MeasurementDocument
with a §7.3 summary + first-pass findings; UI renders traffic lights,
networks, tests, findings; JSON export. Rotation-safe (ViewModel).
App-tier only; server-facing (core-engine) + Shizuku are additive
follow-ups. Debug APK 9.5 MB, assembles clean.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
mrambossek
2026-07-31 21:40:42 +02:00
co-authored by Claude Opus 5
parent 49c6197aff
commit bc220f950e
18 changed files with 831 additions and 0 deletions
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/build
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// SPDX-FileCopyrightText: 2026 Echolot contributors
// SPDX-License-Identifier: GPL-3.0-or-later
plugins {
// AGP 9 built-in Kotlin — no kotlin.android here (see core-probe note).
alias(libs.plugins.android.application)
alias(libs.plugins.kotlin.compose)
alias(libs.plugins.kotlin.serialization)
}
android {
namespace = "app.echo_lot.app"
compileSdk = 36
defaultConfig {
applicationId = "app.echo_lot.app"
minSdk = 26
targetSdk = 36
versionCode = 1
versionName = "0.1.0"
}
buildTypes {
release { isMinifyEnabled = false }
}
compileOptions {
sourceCompatibility = JavaVersion.VERSION_17
targetCompatibility = JavaVersion.VERSION_17
}
buildFeatures {
compose = true
buildConfig = true
}
}
dependencies {
implementation(project(":core-measurement"))
implementation(project(":core-protocol"))
implementation(project(":core-engine"))
implementation(project(":core-probe"))
implementation(libs.kotlinx.serialization.json)
implementation(libs.kotlinx.coroutines.android)
implementation(libs.androidx.core.ktx)
implementation(libs.androidx.lifecycle.runtime.ktx)
implementation(libs.androidx.lifecycle.viewmodel.compose)
implementation(libs.androidx.activity.compose)
implementation(platform(libs.androidx.compose.bom))
implementation(libs.androidx.ui)
implementation(libs.androidx.ui.graphics)
implementation(libs.androidx.ui.tooling.preview)
implementation(libs.androidx.material3)
debugImplementation(libs.androidx.ui.tooling)
}
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<?xml version="1.0" encoding="utf-8"?>
<!-- SPDX-FileCopyrightText: 2026 Echolot contributors
SPDX-License-Identifier: GPL-3.0-or-later -->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
<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_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="false"
android:label="Echolot"
android:supportsRtl="true"
android:theme="@style/Theme.Echolot">
<activity
android:name=".MainActivity"
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>
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// SPDX-FileCopyrightText: 2026 Echolot contributors
// SPDX-License-Identifier: GPL-3.0-or-later
package app.echo_lot.app
import android.Manifest
import android.content.Intent
import android.content.pm.PackageManager
import android.os.Build
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.result.contract.ActivityResultContracts
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.foundation.verticalScroll
import androidx.compose.material3.*
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.text.font.FontFamily
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import androidx.core.content.ContextCompat
import androidx.lifecycle.viewmodel.compose.viewModel
import app.echo_lot.measurement.*
class MainActivity : ComponentActivity() {
private val permissionLauncher =
registerForActivityResult(ActivityResultContracts.RequestMultiplePermissions()) { /* proceed regardless */ }
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
requestRuntimePermissions()
setContent {
MaterialTheme(colorScheme = darkColorScheme()) {
Surface(color = MaterialTheme.colorScheme.background) {
val vm: RunViewModel = viewModel()
EcholotScreen(
state = vm.state,
onRun = vm::run,
onExport = { doc -> startActivity(Intent.createChooser(Report.share(this, doc), "Export Echolot run")) },
)
}
}
}
}
private fun requestRuntimePermissions() {
val perms = mutableListOf(Manifest.permission.ACCESS_FINE_LOCATION)
val missing = perms.filter {
ContextCompat.checkSelfPermission(this, it) != PackageManager.PERMISSION_GRANTED
}
if (missing.isNotEmpty()) permissionLauncher.launch(missing.toTypedArray())
}
}
private fun verdictColor(v: Verdict): Color = when (v) {
Verdict.GREEN -> Color(0xFF2E7D32)
Verdict.YELLOW -> Color(0xFFF9A825)
Verdict.RED -> Color(0xFFC62828)
Verdict.INCONCLUSIVE -> Color(0xFF616161)
}
private fun statusColor(s: TestStatus): Color = when (s) {
TestStatus.OK -> Color(0xFF66BB6A)
TestStatus.PARTIAL -> Color(0xFFFFB300)
TestStatus.FAILED -> Color(0xFFEF5350)
TestStatus.UNSUPPORTED, TestStatus.SKIPPED -> Color(0xFF9E9E9E)
}
@Composable
private fun EcholotScreen(state: UiState, onRun: () -> Unit, onExport: (MeasurementDocument) -> Unit) {
Column(
Modifier.fillMaxSize().padding(16.dp).verticalScroll(rememberScrollState()),
verticalArrangement = Arrangement.spacedBy(12.dp),
) {
Text("Echolot", fontSize = 26.sp, fontWeight = FontWeight.SemiBold)
Text("measure, don't guess", color = MaterialTheme.colorScheme.onSurfaceVariant, fontSize = 13.sp)
Row(horizontalArrangement = Arrangement.spacedBy(12.dp), verticalAlignment = Alignment.CenterVertically) {
Button(onClick = onRun, enabled = !state.running) {
Text(if (state.running) "Running…" else "Run measurement")
}
state.document?.let { doc ->
OutlinedButton(onClick = { onExport(doc) }) { Text("Export JSON") }
}
}
if (state.running) {
Row(verticalAlignment = Alignment.CenterVertically, horizontalArrangement = Arrangement.spacedBy(8.dp)) {
CircularProgressIndicator(Modifier.size(18.dp), strokeWidth = 2.dp)
Text(state.currentStep ?: "", color = MaterialTheme.colorScheme.onSurfaceVariant)
}
}
state.document?.let { doc -> Results(doc) }
}
}
@Composable
private fun Results(doc: MeasurementDocument) {
val summary = doc.summary
if (summary != null) {
Card(colors = CardDefaults.cardColors(containerColor = verdictColor(summary.overall))) {
Column(Modifier.fillMaxWidth().padding(16.dp)) {
Text("Overall: ${summary.overall}", color = Color.White, fontWeight = FontWeight.Bold, fontSize = 18.sp)
}
}
FlowCategories(summary.categories)
}
SectionTitle("Networks (${doc.networks.size})")
for (n in doc.networks) {
Text("${n.transport.name.lowercase()} ${n.iface ?: ""}" +
n.link.addresses.joinToString(", ") { "${it.addr}/${it.prefixLen}" },
fontSize = 13.sp, fontFamily = FontFamily.Monospace)
}
SectionTitle("Tests (${doc.tests.size})")
for (t in doc.tests) {
Card(Modifier.fillMaxWidth()) {
Column(Modifier.padding(12.dp)) {
Row(horizontalArrangement = Arrangement.spacedBy(8.dp), verticalAlignment = Alignment.CenterVertically) {
Dot(statusColor(t.status))
Text(t.type, fontWeight = FontWeight.Medium, modifier = Modifier.weight(1f))
Text(t.status.name, color = statusColor(t.status), fontSize = 12.sp)
}
val ms = (t.endedMonoNs - t.startedMonoNs) / 1_000_000
Text("${t.tier.name.lowercase()} · ${ms} ms", fontSize = 11.sp, color = MaterialTheme.colorScheme.onSurfaceVariant)
t.metrics?.let { Text(it.toString(), fontSize = 11.sp, fontFamily = FontFamily.Monospace, color = MaterialTheme.colorScheme.onSurfaceVariant) }
}
}
}
if (doc.findings.isNotEmpty()) {
SectionTitle("Findings (${doc.findings.size})")
for (f in doc.findings) {
Card(Modifier.fillMaxWidth()) {
Column(Modifier.padding(12.dp)) {
Text(f.title, fontWeight = FontWeight.Medium)
Text("${f.category.name.lowercase()} · ${f.severity.name.lowercase()}", fontSize = 11.sp, color = MaterialTheme.colorScheme.onSurfaceVariant)
Text(f.description, fontSize = 12.sp)
}
}
}
}
}
@Composable
private fun FlowCategories(categories: Map<String, CategorySummary>) {
Column(verticalArrangement = Arrangement.spacedBy(6.dp)) {
for ((name, cat) in categories) {
Row(verticalAlignment = Alignment.CenterVertically, horizontalArrangement = Arrangement.spacedBy(8.dp)) {
Dot(verdictColor(cat.verdict))
Text(name, modifier = Modifier.weight(1f))
Text("${cat.testsRun} run" + if (cat.testsFailed > 0) " · ${cat.testsFailed} failed" else "",
fontSize = 11.sp, color = MaterialTheme.colorScheme.onSurfaceVariant)
}
}
}
}
@Composable
private fun Dot(color: Color) {
Surface(color = color, shape = RoundedCornerShape(50), modifier = Modifier.size(12.dp)) {}
}
@Composable
private fun SectionTitle(text: String) {
Text(text, fontWeight = FontWeight.SemiBold, fontSize = 15.sp, modifier = Modifier.padding(top = 8.dp))
}
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// SPDX-FileCopyrightText: 2026 Echolot contributors
// SPDX-License-Identifier: GPL-3.0-or-later
package app.echo_lot.app
import android.content.Context
import android.content.Intent
import androidx.core.content.FileProvider
import app.echo_lot.measurement.MeasurementDocument
import kotlinx.serialization.json.Json
import java.io.File
/** Serializes a measurement run to JSON and builds a share intent (measurement-schema.md §2). */
object Report {
private val json = Json { prettyPrint = true; encodeDefaults = true }
fun toJson(doc: MeasurementDocument): String =
json.encodeToString(MeasurementDocument.serializer(), doc)
fun share(ctx: Context, doc: MeasurementDocument): Intent {
val dir = File(ctx.cacheDir, "reports").apply { mkdirs() }
val file = File(dir, "echolot-run-${doc.run.id}.json")
file.writeText(toJson(doc))
val uri = FileProvider.getUriForFile(ctx, "${ctx.packageName}.fileprovider", file)
return Intent(Intent.ACTION_SEND).apply {
type = "application/json"
putExtra(Intent.EXTRA_STREAM, uri)
addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
}
}
}
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// SPDX-FileCopyrightText: 2026 Echolot contributors
// SPDX-License-Identifier: GPL-3.0-or-later
package app.echo_lot.app
import android.app.Application
import android.os.Build
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.setValue
import androidx.lifecycle.AndroidViewModel
import androidx.lifecycle.viewModelScope
import app.echo_lot.measurement.*
import app.echo_lot.probe.IcmpProbe
import app.echo_lot.probe.LinkSnapshotProbe
import app.echo_lot.probe.NetworkInventory
import app.echo_lot.probe.Probe
import app.echo_lot.probe.ProbeIds
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import java.time.Instant
import java.util.UUID
data class UiState(
val running: Boolean = false,
val currentStep: String? = null,
val document: MeasurementDocument? = null,
)
/**
* Drives one measurement run: device-tier probes (link snapshot, per-network ICMP) always run;
* results assemble into a MeasurementDocument with a §7.3 summary. Lives in a ViewModel so a run
* survives rotation — a dropped run means a lost report. Server-facing tests (core-engine) are a
* follow-up once enrollment UI lands.
*/
class RunViewModel(app: Application) : AndroidViewModel(app) {
var state by mutableStateOf(UiState())
private set
/** Two-clock ids: UUIDs + monotonic ns relative to a per-run origin. */
private class RunIds : ProbeIds {
val originNanos = System.nanoTime()
override fun uuid(): String = UUID.randomUUID().toString()
override fun monoNs(): Long = System.nanoTime() - originNanos
}
fun run() {
if (state.running) return
state = state.copy(running = true, currentStep = "starting", document = null)
viewModelScope.launch {
val doc = withContext(Dispatchers.IO) { measure() }
state = UiState(running = false, currentStep = null, document = doc)
}
}
private suspend fun measure(): MeasurementDocument {
val ctx = getApplication<Application>()
val ids = RunIds()
val startWall = Instant.now().toString()
step("reading networks")
val entries = NetworkInventory.snapshot(ctx)
val networks = entries.map { it.model }
val probes: List<Probe> = listOf(
LinkSnapshotProbe(entries),
IcmpProbe(entries, v6 = false),
IcmpProbe(entries, v6 = true),
)
val tests = ArrayList<Test>()
for (p in probes) {
step(p.type)
tests.add(
try {
p.run(ctx, ids)
} catch (t: Throwable) {
Test(
id = ids.uuid(), type = p.type, tier = p.tier,
startedMonoNs = ids.monoNs(), endedMonoNs = ids.monoNs(),
status = TestStatus.FAILED,
error = TestError("uncaught", t.message ?: t.javaClass.simpleName),
)
}
)
}
val findings = deriveFindings(tests)
val summary = Verdicts.derive(tests, findings)
return MeasurementDocument(
run = Run(
id = ids.uuid(), trigger = Trigger.MANUAL, startedAt = startWall,
endedAt = Instant.now().toString(),
clock = Clock(monoOriginWall = startWall),
app = AppInfo(
version = BuildConfig.VERSION_NAME, build = BuildConfig.VERSION_CODE, flavor = "app",
),
device = DeviceInfo(
manufacturer = Build.MANUFACTURER, model = Build.MODEL,
androidSdk = Build.VERSION.SDK_INT, androidRelease = Build.VERSION.RELEASE,
),
tiers = Tiers(app = true),
),
networks = networks,
tests = tests,
findings = findings,
summary = summary,
)
}
/** Minimal first-pass findings from device-tier evidence; the full findings registry grows
* with the test suite. */
private fun deriveFindings(tests: List<Test>): List<Finding> {
val out = ArrayList<Finding>()
val ids = RunIds()
for (t in tests) {
if (t.type == TestType.ICMP_PING6 && t.status == TestStatus.FAILED) {
out.add(
Finding(
id = ids.uuid(), code = "ipv6.no_icmp_path", category = Category.IPV6,
severity = Severity.LOW, confidence = Confidence.MEDIUM,
title = "No IPv6 ICMP path on any active network",
description = "ICMPv6 echo got no reply on any active network — this network has no working IPv6 path (or filters ICMPv6).",
evidenceRefs = listOf(EvidenceRef(t.id)),
)
)
}
}
return out
}
private fun step(s: String) {
state = state.copy(currentStep = s)
}
}
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<?xml version="1.0" encoding="utf-8"?>
<!-- SPDX-License-Identifier: GPL-3.0-or-later -->
<resources>
<style name="Theme.Echolot" parent="android:Theme.Material.NoActionBar" />
</resources>
@@ -0,0 +1,5 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- SPDX-License-Identifier: GPL-3.0-or-later -->
<paths>
<cache-path name="reports" path="reports/" />
</paths>