Android app for the VW e-up! media unit API
Kotlin port of upXlink and MIBBridge: Bluetooth tunnel, registration with PIN and certificate check, TLS-PSK session, REST reads and writes, WebSocket events, demo car, English and German UI, CI with signed release builds on tags. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A.hearthforge-ci.toml
@@ -0,0 +1,85 @@
# Steps run in file order, in one container, sharing /ci/build.
image = "docker.io/library/debian:trixie"
work_dir = "/ci/build"
clone_project_to = "/ci/build/project"
shell_setup = """
set -euo pipefail
export ANDROID_HOME=/ci/cache/android-sdk
"""
timeout = 3600
memory_limit = "6g"
cache = [
{ path = "/ci/cache/android-sdk", max_size = "3g" },
{ path = "/root/.gradle", max_size = "4g" },
]
[on]
push = ["master"]
tag = true
[[steps]]
name = "setup"
timeout = 900
run_sh = """
apt-get update -qq && apt-get install -y -qq --no-install-recommends \
openjdk-21-jdk-headless curl unzip ca-certificates > /dev/null
# Only for the license files. Gradle installs the platform and build-tools
# that the app needs on its own.
if [ ! -x "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" ]; then
curl -fsSL -o /tmp/clt.zip \
"https://dl.google.com/android/repository/commandlinetools-linux-15859902_latest.zip"
echo "040d3996a65543d22ec4bf73e4c37aa37a8d4af4 /tmp/clt.zip" | sha1sum -c -
unzip -q /tmp/clt.zip -d /tmp/clt
mkdir -p "$ANDROID_HOME/cmdline-tools"
mv /tmp/clt/cmdline-tools "$ANDROID_HOME/cmdline-tools/latest"
rm -r /tmp/clt /tmp/clt.zip
fi
(yes || true) | "$ANDROID_HOME/cmdline-tools/latest/bin/sdkmanager" --licenses > /dev/null
java -version
"""
[[steps]]
name = "test"
timeout = 1800
run_sh = "cd project && ./gradlew --no-daemon testDebugUnitTest"
[[steps]]
name = "build"
timeout = 1800
run_sh = """
cd project
./gradlew --no-daemon assembleDebug
cp app/build/outputs/apk/debug/app-debug.apk /ci/build/upapp-debug.apk
"""
publish_file = ["/ci/build/upapp-debug.apk"]
# Needs the CI secrets ANDROID_KEYSTORE_BASE64 (base64 of a PKCS12 keystore)
# and ANDROID_KEYSTORE_PASSWORD. Releases must keep the same key: Android
# refuses an update signed with another key.
[[steps]]
name = "release"
run_if = 'test -n "${CI_COMMIT_TAG}"'
warn_on_fail = true
timeout = 1800
run_sh = """
if [ -z "${ANDROID_KEYSTORE_BASE64:-}" ] || [ -z "${ANDROID_KEYSTORE_PASSWORD:-}" ]; then
echo "WARNING: CI secrets ANDROID_KEYSTORE_BASE64 or ANDROID_KEYSTORE_PASSWORD missing. No signed release APK."
exit 1
fi
export ANDROID_KEYSTORE=/tmp/release.p12 ANDROID_KEY_ALIAS=upapp
printf '%s' "$ANDROID_KEYSTORE_BASE64" | base64 -d > "$ANDROID_KEYSTORE"
cd project
./gradlew --no-daemon assembleRelease
cp app/build/outputs/apk/release/app-release.apk /ci/build/upapp-release.apk
"""
publish_file = ["/ci/build/upapp-release.apk"]
[[steps]]
name = "lint"
warn_on_fail = true
run_sh = "cd project && ./gradlew --no-daemon lintDebug"
ALICENSE
@@ -0,0 +1,235 @@
GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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APLAN.md
@@ -0,0 +1,77 @@
# upApp: upXlink as an Android app
Kotlin Android app that talks to the media unit of a VW e-up! (and Citigo e iV / Mii electric).
It reimplements two Python projects:
- MIBBridge: tunnel protocol over Bluetooth RFCOMM channel 5.
- upXlink: registration, TLS-PSK session, REST (VIWI) access, entity parsing.
## How the original works
1. Phone opens RFCOMM channel 5 to the car.
2. MIBBridge protocol multiplexes virtual TCP connections over that socket.
Segment header: `port u16le | type u8 | ...`. Types: TRANSMIT 0 (`len u16le` + data), OPEN 1 (`dst u16le`), CLOSE 2, HEARTBEAT 3 (echo it).
3. `GET http://car:80/car/info/vin` (plain HTTP) returns the VIN.
4. No stored credentials for that VIN: `POST http://car:80/auth/registration` returns 303 with `content-location`.
`GET https://car:443<location>` with TLS 1.2, `ECDHE-RSA-AES128-GCM-SHA256`, no cert check, legacy renegotiation allowed.
The user confirms a PIN on the car display. The body is `username,password`.
5. All further requests use TLS 1.2 with `PSK-AES128-CBC-SHA256` (identity = username, key = password).
6. REST endpoints: `/car/batteries`, `/car/info`, `/car/ranges`, `/chargingmanager/{providers,profiles,timers}`.
The first profile is the default profile. Departure times are UTC.
## Key technical decisions
- **TLS: BouncyCastle low-level API (`bctls`).** Android's Conscrypt (BoringSSL) has no `TLS_PSK_WITH_AES_128_CBC_SHA256`.
BC's `PSKTlsClient` supports it. BC also lets us skip cert checks and allow legacy renegotiation for registration.
- **No localhost TCP bridge.** MIBBridge listens on local ports so that `requests` can connect.
On Android we run TLS directly on the in-process tunnel streams. This removes ports, threads and the proxy layer.
- **Minimal HTTP/1.1 client** over the TLS stream (request line, headers, Content-Length or chunked body).
OkHttp cannot use a BC TLS-PSK stream.
- **JSON: `org.json`** (part of Android). No serialization library.
- **Credentials:** app-private SharedPreferences keyed by VIN. `allowBackup=false`.
- **Bluetooth:** pick from bonded devices, no scanning. Permission `BLUETOOTH_CONNECT` (API 31+).
Connect by the SDP service UUID from maps+more. See docs/maps-and-more.md.
- **UI:** Jetpack Compose, Material 3, single activity, coroutines on `Dispatchers.IO`.
- **License:** AGPL-3.0-or-later (EUPL-compatible). Attribution to upXlink and MIBBridge in the README.
## Files (target)
```
app/src/main/java/.../
Tunnel.kt MIBBridge segment codec, reader loop, heartbeat, virtual connection streams
Tls.kt BC TLS clients: registration (ECDHE-RSA) and session (PSK)
Http.kt minimal HTTP/1.1 request/response
Car.kt connect flow: VIN, credentials, registration, get/post
Model.kt Battery, Info, Range, ChargingManager parsing
MainActivity.kt Compose UI: device picker, dashboard, charging manager, raw GET/POST console
app/src/test/... codec test, parser tests (ported from upXlink fixtures)
```
## Phases
1. **Setup.** Android SDK, Gradle project, JDK 21.
2. **Transport.** Tunnel, TLS, HTTP, registration, raw GET/POST console. First car session: register and read `/`.
3. **Read parity.** Battery, range, info, charging manager. Unit tests with the upXlink fixtures.
4. **Roadmap items** (see below). Each needs car sessions.
5. **Docs.** README with protocol notes and the endpoint list we discover.
## Roadmap items from upXlink
| Item | Status | Needs |
|---|---|---|
| Charging manager write | Done | Tested in the car: timer edits, off-peak days, location create and delete. Location and options edits untested. |
| WebSocket events | Done | Tested in the car. |
| Cert check at registration | Done | Tested in the car. |
| PIN calculation | Done | Tested in the car. |
| Documentation | Done | README and docs/maps-and-more.md. |
| MediaControl | Open | Explore `/` and `/media/*` on the car. Scope depends on what the car exposes. |
| Infotainment keys | Open | Events arrive and are logged. Map keys to screens, like maps+more. |
| Missing location fields | Open | Temperature, min. level, more operations in the location editor. |
| Car clock sync | Open | maps+more sets the car date and time from the phone. |
| Release build | Open | R8, signing, Play listing. Debug logging of raw responses still on. |
## Debugging in the car
- Laptop to phone over USB or wireless adb: install, `logcat`, run the raw console.
- API exploration needs no new code: run upXlink on the laptop over the laptop's own Bluetooth.
- Optional: Bluetooth HCI snoop log of maps+more. Payloads are TLS encrypted, so value is limited.
AREADME.md
@@ -0,0 +1,45 @@
# upApp
Android app for the VW e-up! and its siblings (Škoda Citigo e iV, SEAT Mii electric).
It reads battery, range, car info and the charging manager over Bluetooth, like the discontinued maps+more app.
This is a Kotlin port of [upXlink](https://github.com/hahnworks/upXlink) and [MIBBridge](https://github.com/hahnworks/MIBBridge) by Alexander Hahn.
Those projects are licensed under EUPL-1.2. This port was created in October 2026 and is licensed under AGPL-3.0-or-later, an EUPL-compatible licence.
It is not associated with VWAG or its sub-brands.
## Status
- Tested in a 2020 e-up! with a Pixel 8a: registration, reads, live events, timer edits, off-peak days, adding and deleting locations.
- Edits of location fields and of the options are implemented but not yet tested in a car.
- `WRITES_ENABLED` in `MainActivity.kt` turns all writes off.
## How it talks to the car
1. Bluetooth RFCOMM to the car service `3728ED40-E416-11E4-80A0-0002A5D5C51B`. The MIBBridge protocol multiplexes virtual TCP connections over it.
2. `GET /car/info/vin` on port 80 without TLS.
3. First connection only: `POST /auth/registration` on port 80, then a TLS GET on port 443. The app checks the car certificate against the VW ViWi root CA. Phone and car show the same PIN. The user confirms it on the car. The car returns `user,password`.
4. All other requests: TLS 1.2 with `TLS_PSK_WITH_AES_128_CBC_SHA256` on port 443. Android's own TLS lacks this cipher, so the app uses BouncyCastle.
The car stores timer and off-peak times in UTC. The app shows them in local time.
Details from the maps+more app: [docs/maps-and-more.md](docs/maps-and-more.md).
## Demo mode
Pick "Demo car" in the device list. The app then talks to a simulated car inside the app (`Demo.kt`).
The demo car charges slowly and sends live events. Writes are enabled in demo mode.
The unit tests use the same simulated car.
## Build
```
./gradlew testDebugUnitTest assembleDebug
adb install -r app/build/outputs/apk/debug/app-debug.apk
```
Requires Android 12 (API 31) or newer.
A signed release needs `ANDROID_KEYSTORE` (PKCS12 file), `ANDROID_KEYSTORE_PASSWORD` and `ANDROID_KEY_ALIAS` in the environment.
Without them, `assembleRelease` builds an unsigned APK. The CI builds the signed release on tags (`.hearthforge-ci.toml`).
Aapp/build.gradle.kts
@@ -0,0 +1,58 @@
plugins {
id("com.android.application")
id("org.jetbrains.kotlin.plugin.compose")
}
android {
namespace = "de.upapp"
compileSdk = 37
defaultConfig {
applicationId = "de.upapp"
minSdk = 31
targetSdk = 37
versionCode = 1
versionName = "0.1.0"
}
// Without ANDROID_KEYSTORE, assembleRelease builds an unsigned APK.
val keystore = providers.environmentVariable("ANDROID_KEYSTORE").orNull
val releaseSigning = keystore?.let {
signingConfigs.create("release") {
storeFile = file(it)
storePassword = providers.environmentVariable("ANDROID_KEYSTORE_PASSWORD").get()
keyAlias = providers.environmentVariable("ANDROID_KEY_ALIAS").get()
// PKCS12 has one password for the store and the key.
keyPassword = storePassword
}
}
buildTypes {
release { signingConfig = releaseSigning }
}
buildFeatures {
compose = true
buildConfig = true
}
testOptions { unitTests.isReturnDefaultValues = true }
packaging {
resources.excludes += "META-INF/versions/9/OSGI-INF/MANIFEST.MF"
resources.pickFirsts += "META-INF/LICENSE.md"
}
}
dependencies {
implementation(platform("androidx.compose:compose-bom:2026.09.00"))
implementation("androidx.compose.material3:material3")
implementation("androidx.compose.material:material-icons-core:1.7.8")
implementation("androidx.activity:activity-compose:1.13.0")
implementation("androidx.lifecycle:lifecycle-viewmodel-compose:2.11.0")
// Conscrypt has no TLS_PSK_WITH_AES_128_CBC_SHA256, the car's only session cipher.
implementation("org.bouncycastle:bctls-jdk18on:1.86.2")
testImplementation("junit:junit:4.13.2")
// android.jar only has org.json stubs.
testImplementation("org.json:json:20260814")
// Creates the test certificates for the registration handshake.
testImplementation("org.bouncycastle:bcpkix-jdk18on:1.86")
}
Aapp/src/main/AndroidManifest.xml
@@ -0,0 +1,22 @@
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android">
<uses-feature android:name="android.hardware.bluetooth" android:required="true" />
<uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
<application
android:allowBackup="false"
android:dataExtractionRules="@xml/data_extraction_rules"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@android:style/Theme.Material.NoActionBar">
<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>
</application>
</manifest>
Aapp/src/main/java/de/upapp/Car.kt
@@ -0,0 +1,110 @@
package de.upapp
import android.content.SharedPreferences
import android.util.Log
import androidx.core.content.edit
import org.bouncycastle.tls.AlertDescription
import org.bouncycastle.tls.TlsClientProtocol
import org.bouncycastle.tls.TlsFatalAlertReceived
import org.json.JSONObject
import java.io.IOException
// Host headers as maps+more sends them through its local port mapping.
private const val HTTP_HOST = "127.0.0.1:4080"
internal const val HTTPS_HOST = "127.0.0.1:4443"
// The car answers only after the user confirms the PIN on its display.
private const val REGISTRATION_TIMEOUT_MS = 120_000L
/** REST access to the car. [credentials] stores one `user,password` pair per VIN. */
class Car(internal val tunnel: Tunnel, private val credentials: SharedPreferences) {
lateinit var vin: String
private set
internal lateinit var psk: Pair<String, String>
private set
/** Reads the VIN, registers if needed and opens a session. [onPin] gets the PIN that the car display shows. */
fun connect(onPin: (String) -> Unit) {
val r = plain("GET", "/car/info/vin")
if (r.status != 200) throw IOException("Reading the VIN failed: HTTP ${r.status}")
vin = r.text.trim()
val stored = credentials.getString(vin, null)
psk = parseCredentials(stored ?: register(onPin))
if (stored == null) credentials.edit { putString(vin, "${psk.first},${psk.second}") }
try {
get("/")
} catch (e: TlsFatalAlertReceived) {
credentials.edit { remove(vin) }
throw IOException("The car rejected the stored key (${AlertDescription.getText(e.alertDescription)}). Connect again to register.", e)
}
}
fun get(path: String): String = send("GET", path).ok().text
fun post(path: String, json: JSONObject): String = send("POST", path, json.toString().encodeToByteArray()).ok().text
/** Raw request over the authenticated session. Does not check the status. */
@Synchronized
fun send(method: String, path: String, body: ByteArray? = null): Response {
val reused = session != null
val s = session ?: Session(tunnel.open(443))
session = null
val r = try {
exchange(s.tls.inputStream, s.tls.outputStream, method, HTTPS_HOST, "/" + path.trimStart('/'), body, keepAlive = true)
} catch (e: IOException) {
s.close()
// The car may have closed the idle connection. The retry opens a fresh one.
if (reused) return send(method, path, body)
throw e
}
if (r.reusable) session = s else s.close()
if (BuildConfig.DEBUG) Log.d("Http", "$method $path -> ${r.status} ${r.text.take(3000)}")
return r
}
private var session: Session? = null
private inner class Session(val channel: Tunnel.Channel) {
val tls = try {
sessionTls(channel.input, channel.output, psk.first, psk.second)
} catch (e: IOException) {
channel.close()
throw e
}
fun close() {
runCatching { tls.close() }
channel.close()
}
}
private fun register(onPin: (String) -> Unit): String {
val r = plain("POST", "/auth/registration", ByteArray(0))
if (r.status != 303) throw IOException("Registration failed: expected HTTP 303, got ${r.status}")
val location = r.headers["content-location"] ?: throw IOException("Registration failed: no content-location header")
return tunnel.open(443, REGISTRATION_TIMEOUT_MS).use { ch ->
val (tls, pin) = registrationTls(ch.input, ch.output)
onPin(pin)
tls.exchangeAndClose("GET", location, null)
}.ok().text
}
private fun plain(method: String, path: String, body: ByteArray? = null) =
tunnel.open(80).use { exchange(it.input, it.output, method, HTTP_HOST, path, body) }
private fun TlsClientProtocol.exchangeAndClose(method: String, path: String, body: ByteArray?) =
try {
exchange(inputStream, outputStream, method, HTTPS_HOST, path, body)
} finally {
runCatching { close() }
}
internal fun Response.ok() = apply {
if (status !in 200..299) throw IOException("HTTP $status: ${text.take(200)}")
}
}
internal fun parseCredentials(s: String): Pair<String, String> {
val parts = s.trim().split(',')
if (parts.size != 2) throw IOException("Invalid credentials from the car")
return parts[0] to parts[1]
}
Aapp/src/main/java/de/upapp/Demo.kt
@@ -0,0 +1,249 @@
package de.upapp
import org.bouncycastle.tls.CipherSuite
import org.bouncycastle.tls.PSKTlsServer
import org.bouncycastle.tls.ProtocolVersion
import org.bouncycastle.tls.TlsPSKIdentityManager
import org.bouncycastle.tls.TlsServerProtocol
import org.bouncycastle.tls.crypto.impl.bc.BcTlsCrypto
import org.json.JSONArray
import org.json.JSONObject
import java.io.DataInputStream
import java.io.EOFException
import java.io.IOException
import java.io.InputStream
import java.io.OutputStream
import java.security.SecureRandom
import java.time.LocalDateTime
import java.time.format.DateTimeFormatter
import java.util.Locale
import java.util.UUID
import java.util.concurrent.ConcurrentHashMap
import java.util.concurrent.CopyOnWriteArrayList
import kotlin.concurrent.thread
const val DEMO_VIN = "WVWZZZAAZLD000042"
const val DEMO_CREDENTIALS = "demo,demo"
/** Car end of a tunnel, for the demo and tests. [serve] handles each connection that the phone opens. */
class CarSide(serve: (port: Int, InputStream, OutputStream) -> Unit) {
private val toPhone = Pipe()
private val toCar = Pipe()
val tunnel = Tunnel(toPhone.input, toCar.output)
init {
thread(isDaemon = true, name = "car") {
val pipes = ConcurrentHashMap<Int, Pipe>()
val chunk = ByteArray(4096)
var buf = ByteArray(0)
while (true) {
val n = toCar.input.read(chunk)
if (n < 0) break
buf += chunk.copyOf(n)
while (true) {
val (s, size) = decode(buf) ?: break
buf = buf.copyOfRange(size, buf.size)
when (s.type) {
HEARTBEAT -> toPhone.put(frame(0, HEARTBEAT))
OPEN -> {
val pipe = Pipe().also { pipes[s.port] = it }
val remote = (s.data[0].toInt() and 0xFF) or ((s.data[1].toInt() and 0xFF) shl 8)
val out = object : OutputStream() {
override fun write(b: Int) = write(byteArrayOf(b.toByte()), 0, 1)
override fun write(b: ByteArray, off: Int, len: Int) =
toPhone.put(frame(s.port, TRANSMIT, u16(len) + b.copyOfRange(off, off + len)))
}
thread(isDaemon = true) {
try {
serve(remote, pipe.input, out)
} catch (_: Exception) {
}
if (pipes.remove(s.port) != null) toPhone.put(frame(s.port, CLOSE))
}
}
TRANSMIT -> pipes[s.port]?.put(s.data)
CLOSE -> pipes.remove(s.port)?.end() ?: Unit
}
}
}
pipes.values.forEach { it.end() }
}
}
}
private class Request(val method: String, val path: String, val headers: Map<String, String>, val body: String)
private fun readRequest(input: InputStream): Request? {
val first = try {
input.line()
} catch (_: EOFException) {
return null
}
val (method, path) = first.split(' ')
val headers = generateSequence { input.line().ifEmpty { null } }
.associate { it.substringBefore(':').trim().lowercase() to it.substringAfter(':').trim() }
val body = ByteArray(headers["content-length"]?.toInt() ?: 0).also { DataInputStream(input).readFully(it) }
return Request(method, path, headers, body.decodeToString())
}
private fun respond(out: OutputStream, status: Int, body: Any? = null, headers: List<String> = emptyList()) {
val text = body?.toString().orEmpty().toByteArray()
val head = (listOf("HTTP/1.1 $status X", "Content-Length: ${text.size}") + headers).joinToString("\r\n") + "\r\n\r\n"
out.write(head.toByteArray() + text)
out.flush()
}
/** A simulated e-up! that serves the REST API and events in memory. */
class DemoCar {
private val docs = LinkedHashMap<String, JSONObject>()
private val listeners = CopyOnWriteArrayList<OutputStream>()
val tunnel = CarSide(::serve).tunnel
init {
val now = LocalDateTime.now()
add("/car/info/", "info", "vehicleIdenticationNumber" to DEMO_VIN, "vehicleType" to "VW120", "language" to "de",
"vehicleDate" to now.format(DateTimeFormatter.ofPattern("dd MMM yyyy", Locale.ENGLISH)),
"vehicleTime" to now.format(DateTimeFormatter.ofPattern("HH:mm:ss")))
add("/car/batteries/", "BEV battery", "soc" to 64.0, "socUnit" to "percent")
add("/car/ranges/", "BEV range", "value" to 151.0, "valueUnit" to "km")
add("/car/environments/", "environment", "outsideTemperature" to 12.5, "outsideTemperatureUnit" to "celsius", "lightIntensity" to 40)
add("/chargingmanager/batteryCharges/", "batteryCharge", "state" to "running")
add("/chargingmanager/batteryPlugs/", "batteryPlug", "plug" to "plugged")
add("/chargingmanager/batteryClimates/", "batteryClimate", "state" to "idle")
add("/chargingmanager/profiles/", "Optionen", "operations" to JSONArray(listOf("climateExtSupply", "climate")),
"maxCurrent" to 16, "minLevel" to 30, "targetLevel" to 0, "temperature" to 21.5)
val home = createProfile("Zuhause", 80, 16, listOf("charge", "climate"))
val work = createProfile("Arbeit", 100, 10, listOf("charge"))
add("/chargingmanager/timers/", "Timer1", "state" to TIMER_ON, "departureTime" to "05:30:00", "cyclic" to true,
"weekdays" to JSONArray(listOf("monday", "tuesday", "wednesday", "thursday", "friday")), "profile" to link(home))
add("/chargingmanager/timers/", "Timer2", "state" to TIMER_OFF, "departureTime" to "08:00:00", "cyclic" to true,
"weekdays" to JSONArray(listOf("saturday")), "profile" to link(work))
add("/chargingmanager/timers/", "Timer3", "state" to TIMER_OFF, "departureTime" to "16:45:00", "cyclic" to false,
"departureDate" to now.plusDays(3).format(DateTimeFormatter.ofPattern("dd MMM yyyy", Locale.ENGLISH)),
"weekdays" to JSONArray(), "profile" to link(home))
thread(isDaemon = true, name = "demo charging") { simulateCharging() }
}
private fun add(collection: String, name: String, vararg fields: Pair<String, Any>): JSONObject {
val id = UUID.randomUUID().toString()
val doc = JSONObject().put("id", id).put("name", name).put("uri", collection + id)
fields.forEach { (k, v) -> doc.put(k, v) }
docs[doc.getString("uri")] = doc
return doc
}
private fun createProfile(name: String, target: Int, current: Int, operations: List<String>): JSONObject {
val provider = add("/chargingmanager/providers/", "", "cyclic" to true, "preferredTimeStart" to "21:00:00",
"preferredTimeEnd" to "05:00:00", "weekdays" to JSONArray(listOf("monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday")))
return add("/chargingmanager/profiles/", name, "operations" to JSONArray(operations), "maxCurrent" to current,
"minLevel" to 0, "targetLevel" to target, "temperature" to 21.0, "powerProvider" to link(provider))
}
private fun link(doc: JSONObject) = JSONObject().put("id", doc["id"]).put("name", doc["name"]).put("uri", doc["uri"])
private fun collection(path: String) = JSONArray(docs.filterKeys { it.startsWith(path) && it != path }.values)
private fun first(collection: String) = docs.entries.first { it.key.startsWith(collection) }.value
private fun simulateCharging() {
while (true) {
Thread.sleep(3_000)
synchronized(this) {
val charge = first("/chargingmanager/batteryCharges/")
if (charge["state"] != "running") return@synchronized
val battery = first("/car/batteries/")
val soc = battery.getDouble("soc") + 1
battery.put("soc", soc)
first("/car/ranges/").put("value", (soc * 2.4).toInt().toDouble())
if (soc >= 80) charge.put("state", "completed")
listOf("/car/batteries/", "/car/ranges/", "/chargingmanager/batteryCharges/").forEach(::notify)
}
}
}
private fun notify(collection: String) {
val message = JSONObject().put("type", "data").put("event", "$collection#42").put("data", collection(collection))
listeners.forEach { out ->
runCatching { writeFrame(out, WS_TEXT, message.toString().toByteArray(), mask = false) }.onFailure { listeners.remove(out) }
}
}
private fun serve(port: Int, input: InputStream, output: OutputStream) {
if (port == 80) {
val r = readRequest(input) ?: return
if (r.path == "/car/info/vin") respond(output, 200, DEMO_VIN) else respond(output, 404)
return
}
val tls = TlsServerProtocol(input, output)
tls.accept(object : PSKTlsServer(BcTlsCrypto(SecureRandom()), object : TlsPSKIdentityManager {
override fun getHint(): ByteArray = DEMO_VIN.toByteArray()
override fun getPSK(identity: ByteArray) = DEMO_CREDENTIALS.substringAfter(',').toByteArray()
}) {
override fun getSupportedVersions(): Array<ProtocolVersion> = ProtocolVersion.TLSv12.only()
override fun getSupportedCipherSuites() = intArrayOf(CipherSuite.TLS_PSK_WITH_AES_128_CBC_SHA256)
})
val inp = tls.inputStream
val out = tls.outputStream
while (true) {
val r = readRequest(inp) ?: break
if (r.headers["upgrade"].equals("websocket", ignoreCase = true)) {
respond(out, 101, null, listOf("Upgrade: websocket", "Connection: Upgrade", "Sec-WebSocket-Accept: ${wsAccept(r.headers.getValue("sec-websocket-key"))}"))
events(inp, out)
break
}
synchronized(this) { handle(r, out) }
}
tls.close()
}
private fun events(input: InputStream, output: OutputStream) {
listeners.add(output)
try {
while (true) {
val (_, data) = readMessage(input, output, mask = false)
val m = JSONObject(data.decodeToString())
val reply = JSONObject().put("type", m.getString("type")).put("event", m.getString("event")).put("status", "ok")
writeFrame(output, WS_TEXT, reply.toString().toByteArray(), mask = false)
}
} finally {
listeners.remove(output)
}
}
private fun handle(r: Request, out: OutputStream) {
val path = r.path
val doc = docs[path]
when {
r.method == "GET" && path == "/" -> respond(out, 200, JSONObject())
r.method == "GET" && doc != null -> respond(out, 200, JSONObject().put("status", "ok").put("data", doc))
r.method == "GET" && path.endsWith("/") && docs.keys.any { it.startsWith(path) } -> respond(out, 200, JSONObject().put("data", collection(path)))
r.method == "POST" && path == "/chargingmanager/profiles/" -> {
val b = JSONObject(r.body)
val created = createProfile(b.getString("name"), b.getInt("targetLevel"), b.getInt("maxCurrent"),
b.getJSONArray("operations").let { a -> List(a.length()) { a.getString(it) } })
respond(out, 201, created)
notify("/chargingmanager/profiles/")
notify("/chargingmanager/providers/")
}
r.method == "POST" && doc != null -> {
val b = JSONObject(r.body)
b.keys().forEach { k ->
val v = b.get(k)
val target = (v as? String)?.let { id -> docs.values.firstOrNull { it.optString("id") == id } }
doc.put(k, if (k in setOf("profile", "powerProvider") && target != null) link(target) else v)
}
respond(out, 200, JSONObject().put("status", "ok"))
notify(path.substringBeforeLast('/') + "/")
}
r.method == "DELETE" && doc != null -> {
docs.remove(path)
doc.optJSONObject("powerProvider")?.let { docs.remove(it.getString("uri")) }
respond(out, 200)
notify("/chargingmanager/profiles/")
notify("/chargingmanager/providers/")
}
else -> respond(out, 404)
}
}
}
Aapp/src/main/java/de/upapp/Http.kt
@@ -0,0 +1,88 @@
package de.upapp
import java.io.ByteArrayOutputStream
import java.io.DataInputStream
import java.io.EOFException
import java.io.IOException
import java.io.InputStream
import java.io.OutputStream
/** [reusable] is true if the connection can carry the next request. */
class Response(val status: Int, val headers: Map<String, String>, val body: ByteArray, val reusable: Boolean = false) {
val text get() = body.decodeToString()
}
/** Sends one HTTP/1.1 request and reads the response. Header names are lower case. */
fun exchange(
input: InputStream, output: OutputStream, method: String, host: String, path: String, body: ByteArray? = null,
keepAlive: Boolean = false, extraHeaders: List<String> = emptyList(),
): Response {
val head = buildString {
append("$method $path HTTP/1.1\r\nHost: $host\r\n")
if (!keepAlive) append("Connection: close\r\n")
extraHeaders.forEach { append("$it\r\n") }
if (body != null) {
// Same type as maps+more. Other types are untested on the car.
if (body.isNotEmpty()) append("Content-Type: text/plain; charset=UTF-8\r\n")
append("Content-Length: ${body.size}\r\n")
}
append("\r\n")
}
output.write(head.encodeToByteArray() + (body ?: ByteArray(0)))
output.flush()
// No buffering. Read-ahead would swallow the start of the next response on a reused connection.
val inp = DataInputStream(input)
val statusLine = inp.line()
val status = statusLine.split(' ').getOrNull(1)?.toIntOrNull() ?: throw IOException("Bad status line: $statusLine")
val headers = generateSequence { inp.line().ifEmpty { null } }
.associate { it.substringBefore(':').trim().lowercase() to it.substringAfter(':').trim() }
val length = headers["content-length"]?.toInt()
var framed = true
val bytes = when {
headers["transfer-encoding"]?.contains("chunked", ignoreCase = true) == true -> inp.chunked()
length != null -> ByteArray(length).also { inp.readFully(it) }
status in 100..199 || status == 204 || status == 304 -> ByteArray(0)
else -> inp.untilEof().also { framed = false }
}
val reusable = keepAlive && framed && !headers["connection"].equals("close", ignoreCase = true)
return Response(status, headers, bytes, reusable)
}
internal fun InputStream.line(): String {
val out = ByteArrayOutputStream()
while (true) {
val c = read()
if (c < 0) throw EOFException("Connection closed in HTTP header")
if (c == '\n'.code) break
out.write(c)
}
return out.toString(Charsets.ISO_8859_1.name()).trimEnd('\r')
}
private fun DataInputStream.chunked(): ByteArray {
val out = ByteArrayOutputStream()
while (true) {
val size = line().substringBefore(';').trim().toInt(16)
if (size == 0) break
out.write(ByteArray(size).also { readFully(it) })
line()
}
while (line().isNotEmpty()) Unit
return out.toByteArray()
}
private fun InputStream.untilEof(): ByteArray {
val out = ByteArrayOutputStream()
val buf = ByteArray(4096)
try {
while (true) {
val n = read(buf)
if (n < 0) break
out.write(buf, 0, n)
}
} catch (_: EOFException) {
// A peer that closes without TLS close_notify still ends the body.
}
return out.toByteArray()
}
Aapp/src/main/java/de/upapp/MainActivity.kt
@@ -0,0 +1,416 @@
package de.upapp
import android.Manifest
import android.annotation.SuppressLint
import android.app.Application
import android.bluetooth.BluetoothDevice
import android.bluetooth.BluetoothManager
import android.bluetooth.BluetoothSocket
import android.content.Context
import android.content.pm.PackageManager
import android.os.Bundle
import android.util.Log
import androidx.activity.ComponentActivity
import androidx.activity.compose.rememberLauncherForActivityResult
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.activity.result.contract.ActivityResultContracts
import androidx.annotation.StringRes
import androidx.compose.foundation.clickable
import androidx.compose.foundation.isSystemInDarkTheme
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.verticalScroll
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Build
import androidx.compose.material.icons.filled.Close
import androidx.compose.material.icons.filled.DateRange
import androidx.compose.material.icons.filled.Home
import androidx.compose.material.icons.filled.Refresh
import androidx.compose.material3.Button
import androidx.compose.material3.CircularProgressIndicator
import androidx.compose.material3.ExperimentalMaterial3Api
import androidx.compose.material3.HorizontalDivider
import androidx.compose.material3.Icon
import androidx.compose.material3.IconButton
import androidx.compose.material3.LinearProgressIndicator
import androidx.compose.material3.ListItem
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.NavigationBar
import androidx.compose.material3.NavigationBarItem
import androidx.compose.material3.Scaffold
import androidx.compose.material3.SnackbarHost
import androidx.compose.material3.SnackbarHostState
import androidx.compose.material3.Text
import androidx.compose.material3.TextButton
import androidx.compose.material3.TopAppBar
import androidx.compose.material3.dynamicDarkColorScheme
import androidx.compose.material3.dynamicLightColorScheme
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableIntStateOf
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.text.font.FontFamily
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.dp
import androidx.core.content.edit
import androidx.lifecycle.AndroidViewModel
import androidx.lifecycle.viewModelScope
import androidx.lifecycle.viewmodel.compose.viewModel
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch
import org.json.JSONArray
import org.json.JSONObject
import java.io.IOException
import java.util.UUID
/** Turns all writes off. The car test on 2026-10-07 covered only the timer state. */
const val WRITES_ENABLED = true
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
enableEdgeToEdge()
setContent {
val scheme = if (isSystemInDarkTheme()) dynamicDarkColorScheme(this) else dynamicLightColorScheme(this)
MaterialTheme(colorScheme = scheme) { App(viewModel()) }
}
}
}
class MainViewModel(app: Application) : AndroidViewModel(app) {
private val credentials = app.getSharedPreferences("credentials", Context.MODE_PRIVATE)
private var socket: BluetoothSocket? = null
private var tunnel: Tunnel? = null
/** Addresses of devices that connected as a car before. */
var knownCars: Set<String> = credentials.getStringSet(KNOWN_CARS, null).orEmpty()
private set
var deviceName by mutableStateOf("")
private set
var connecting by mutableStateOf(false)
private set
var pin by mutableStateOf<String?>(null)
private set
var busy by mutableStateOf(false)
private set
var car by mutableStateOf<Car?>(null)
private set
var snack by mutableStateOf<String?>(null)
var battery by mutableStateOf<Battery?>(null)
private set
var range by mutableStateOf<Range?>(null)
private set
var info by mutableStateOf<Info?>(null)
private set
var charging by mutableStateOf<ChargingManager?>(null)
private set
var status by mutableStateOf<Status?>(null)
private set
var demo by mutableStateOf(false)
private set
val writesEnabled get() = WRITES_ENABLED || demo
var consoleOut by mutableStateOf("")
private set
@SuppressLint("MissingPermission")
fun connect(device: BluetoothDevice) {
deviceName = device.name ?: device.address
connecting = true
launch {
val s = openRfcomm(device).also { socket = it }
start(Car(Tunnel(s.inputStream, s.outputStream).also { tunnel = it }, credentials))
knownCars = knownCars + device.address
credentials.edit { putStringSet(KNOWN_CARS, knownCars) }
}
}
fun connectDemo() {
deviceName = str(R.string.demo_car)
demo = true
connecting = true
launch {
val prefs = getApplication<Application>().getSharedPreferences("demo", Context.MODE_PRIVATE)
prefs.edit { putString(DEMO_VIN, DEMO_CREDENTIALS) }
start(Car(DemoCar().tunnel.also { tunnel = it }, prefs))
}
}
private fun start(c: Car) {
c.connect { pin = it }
if (pin != null) snack = str(R.string.registered, c.vin)
car = c
load(c)
viewModelScope.launch(Dispatchers.IO) {
while (car === c) {
try {
val inputs = inputs(c)
c.listen(EVENT_PATHS + inputs.keys) { path, data ->
val input = inputs[path]
if (input != null) onInput(input, data) else viewModelScope.launch(Dispatchers.IO) { reload(c, path) }
}
} catch (e: Exception) {
if (car === c) Log.w("upApp", "Event connection ended", e)
}
delay(5_000)
}
}
}
private fun update(c: Car, path: String) {
when (path) {
"/car/batteries/" -> battery = c.battery()
"/car/ranges/" -> range = c.range()
in STATUS_PATHS -> status = c.status()
else -> charging = c.chargingManager()
}
}
private fun reload(c: Car, path: String) = try {
update(c, path)
} catch (e: Exception) {
Log.w("upApp", "Reload of $path failed", e)
}
fun refresh() {
val c = car ?: return
launch { load(c) }
}
fun save(write: Car.() -> Unit) {
val c = car ?: return
launch {
c.write()
charging = c.chargingManager()
snack = str(R.string.saved)
}
}
fun console(method: String, path: String, body: String?) {
val c = car ?: return
launch {
val r = c.send(method, path, body?.let { JSONObject(it).toString().encodeToByteArray() })
consoleOut = "HTTP ${r.status}\n${pretty(r.text)}"
}
}
fun disconnect() {
car = null
runCatching { socket?.close() }
tunnel?.close()
socket = null
tunnel = null
demo = false
status = null
battery = null
range = null
info = null
charging = null
consoleOut = ""
}
override fun onCleared() = disconnect()
/** Loads every group. A failing group does not stop the others. Throws the first error at the end. */
private fun load(c: Car) {
info = c.info()
listOf("/car/batteries/", "/car/ranges/", STATUS_PATHS[0], "/chargingmanager/profiles/")
.mapNotNull { runCatching { update(c, it) }.exceptionOrNull() }
.firstOrNull()?.let { throw it }
}
private fun launch(block: () -> Unit) = viewModelScope.launch(Dispatchers.IO) {
busy = true
try {
block()
} catch (e: Exception) {
Log.e("upApp", "Request failed", e)
snack = str(R.string.error, e.message ?: e.javaClass.simpleName)
if (car == null) disconnect()
} finally {
busy = false
connecting = false
pin = null
}
}
private fun str(@StringRes id: Int, vararg args: Any) = getApplication<Application>().getString(id, *args)
}
private const val KNOWN_CARS = "known cars"
private val TUNNEL_SERVICE = UUID.fromString("3728ED40-E416-11E4-80A0-0002A5D5C51B")
// Same attempts and back-off as maps+more. The first connect after pairing often fails.
@SuppressLint("MissingPermission")
private fun openRfcomm(device: BluetoothDevice): BluetoothSocket {
for (attempt in 1..4) {
val socket = device.createRfcommSocketToServiceRecord(TUNNEL_SERVICE)
try {
socket.connect()
return socket
} catch (e: IOException) {
socket.close()
if (attempt == 4) throw e
Log.w("upApp", "Bluetooth connect attempt $attempt failed", e)
Thread.sleep(2_000L * attempt)
}
}
error("unreachable")
}
private fun pretty(text: String) =
runCatching { JSONObject(text).toString(2) }.recoverCatching { JSONArray(text).toString(2) }.getOrDefault(text)
private val STATUS_PATHS = listOf(
"/chargingmanager/batteryCharges/", "/chargingmanager/batteryPlugs/", "/chargingmanager/batteryClimates/", "/car/environments/",
)
private val EVENT_PATHS = listOf(
"/car/batteries/", "/car/ranges/", "/chargingmanager/timers/", "/chargingmanager/profiles/", "/chargingmanager/providers/",
) + STATUS_PATHS
/** Infotainment keys and knobs by element URI. Each one needs its own subscription, like in maps+more. */
private fun inputs(c: Car): Map<String, String> = listOf("/mechanicalinput/buttons/", "/mechanicalinput/rotarypushes/").flatMap { path ->
runCatching {
val items = JSONObject(c.get(path)).getJSONArray("data")
List(items.length()) { items.getJSONObject(it) }.map { it.getString("uri") to it.optString("meaning").ifEmpty { it.optString("name") } }
}.getOrDefault(emptyList())
}.toMap()
// TODO: only logged for now. maps+more opens the screen that matches the pressed key.
private fun onInput(name: String, data: Any?) {
val o = (data as? JSONObject) ?: (data as? org.json.JSONArray)?.optJSONObject(0)
Log.i("Input", "$name: state=${o?.optString("state")} ticks=${o?.opt("ticks")}")
}
private val TABS = listOf(R.string.tab_overview to Icons.Default.Home, R.string.tab_charging to Icons.Default.DateRange, R.string.tab_console to Icons.Default.Build)
@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun App(vm: MainViewModel) {
val snackbar = remember { SnackbarHostState() }
LaunchedEffect(vm.snack) {
vm.snack?.let {
snackbar.showSnackbar(it)
vm.snack = null
}
}
var tab by rememberSaveable { mutableIntStateOf(0) }
val car = vm.car
Scaffold(
topBar = {
if (car != null) TopAppBar(
title = {
Column {
Text(vm.deviceName)
Text(stringResource(R.string.connected_vin, car.vin), style = MaterialTheme.typography.bodySmall)
}
},
actions = {
IconButton(onClick = vm::refresh, enabled = !vm.busy) { Icon(Icons.Default.Refresh, stringResource(R.string.refresh)) }
IconButton(onClick = vm::disconnect) { Icon(Icons.Default.Close, stringResource(R.string.disconnect)) }
},
)
},
bottomBar = {
if (car != null) NavigationBar {
TABS.forEachIndexed { i, (label, icon) ->
NavigationBarItem(selected = tab == i, onClick = { tab = i }, icon = { Icon(icon, null) }, label = { Text(stringResource(label)) })
}
}
},
snackbarHost = { SnackbarHost(snackbar) },
) { padding ->
Box(Modifier.padding(padding).fillMaxSize()) {
when {
vm.pin != null -> PinScreen(vm.pin!!, vm::disconnect)
vm.connecting -> Waiting(stringResource(R.string.connecting, vm.deviceName))
car == null -> DevicePicker(vm.knownCars, vm::connect, vm::connectDemo)
tab == 0 -> Overview(vm)
tab == 1 -> Charging(vm)
else -> Console(vm)
}
if (vm.busy && car != null) LinearProgressIndicator(Modifier.fillMaxWidth())
}
}
}
@SuppressLint("MissingPermission")
@Composable
private fun DevicePicker(known: Set<String>, onPick: (BluetoothDevice) -> Unit, onDemo: () -> Unit) {
val ctx = LocalContext.current
var granted by remember { mutableStateOf(ctx.checkSelfPermission(Manifest.permission.BLUETOOTH_CONNECT) == PackageManager.PERMISSION_GRANTED) }
val launcher = rememberLauncherForActivityResult(ActivityResultContracts.RequestPermission()) { granted = it }
Column(Modifier.verticalScroll(rememberScrollState()).padding(16.dp), verticalArrangement = Arrangement.spacedBy(12.dp)) {
Text(stringResource(R.string.select_car), style = MaterialTheme.typography.headlineSmall)
if (!granted) {
Text(stringResource(R.string.bt_permission))
Button(onClick = { launcher.launch(Manifest.permission.BLUETOOTH_CONNECT) }) { Text(stringResource(R.string.allow_bluetooth)) }
} else {
Text(stringResource(R.string.select_car_hint), color = MaterialTheme.colorScheme.onSurfaceVariant)
val devices = remember {
ctx.getSystemService(BluetoothManager::class.java).adapter?.bondedDevices.orEmpty().sortedBy { it.name }
}
if (devices.isEmpty()) Text(stringResource(R.string.no_devices))
// A car is a device that connected before, or one that offers the tunnel service.
val (cars, others) = devices.partition { d -> d.address in known || d.uuids.orEmpty().any { it.uuid == TUNNEL_SERVICE } }
listOf(R.string.your_cars to cars, R.string.other_devices to others).filter { it.second.isNotEmpty() }.forEach { (title, list) ->
Text(stringResource(title), style = MaterialTheme.typography.titleSmall, color = MaterialTheme.colorScheme.primary)
list.forEach { d ->
ListItem(
headlineContent = { Text(d.name ?: d.address) },
supportingContent = { Text(d.address, fontFamily = FontFamily.Monospace) },
modifier = Modifier.clickable { onPick(d) },
)
}
}
}
HorizontalDivider()
ListItem(
headlineContent = { Text(stringResource(R.string.demo_car)) },
supportingContent = { Text(stringResource(R.string.demo_car_hint)) },
modifier = Modifier.clickable(onClick = onDemo),
)
}
}
@Composable
internal fun Waiting(text: String?) = Column(
Modifier.fillMaxSize().padding(24.dp),
verticalArrangement = Arrangement.spacedBy(16.dp, Alignment.CenterVertically),
horizontalAlignment = Alignment.CenterHorizontally,
) {
CircularProgressIndicator()
text?.let { Text(it) }
}
@Composable
private fun PinScreen(pin: String, onCancel: () -> Unit) = Column(
Modifier.fillMaxSize().padding(24.dp),
verticalArrangement = Arrangement.spacedBy(16.dp, Alignment.CenterVertically),
horizontalAlignment = Alignment.CenterHorizontally,
) {
Row(verticalAlignment = Alignment.CenterVertically) {
Text(stringResource(R.string.confirm_pin_title), style = MaterialTheme.typography.titleLarge)
InfoButton(Topic.PIN)
}
Text(stringResource(R.string.confirm_pin_text), textAlign = TextAlign.Center)
Text(pin.chunked(3).joinToString(" "), style = MaterialTheme.typography.displayLarge, fontFamily = FontFamily.Monospace)
Text(stringResource(R.string.pin_note), textAlign = TextAlign.Center, style = MaterialTheme.typography.bodySmall)
CircularProgressIndicator()
TextButton(onClick = onCancel) { Text(stringResource(R.string.cancel)) }
}
Aapp/src/main/java/de/upapp/Model.kt
@@ -0,0 +1,271 @@
package de.upapp
import android.util.Log
import org.json.JSONArray
import org.json.JSONObject
import java.io.IOException
import java.time.DayOfWeek
import java.time.LocalDate
import java.time.LocalTime
import java.time.ZonedDateTime
import java.time.format.DateTimeFormatter
import java.util.Locale
/** [soc] and [value] are null while the car has no reading. It then sends an empty string. */
data class Battery(val name: String, val soc: Double?)
data class Range(val name: String, val value: Double?, val unit: String)
data class Info(val vin: String, val date: String, val time: String, val type: String, val language: String)
/** Departure timer. The car stores [departureTime] in UTC. */
data class Timer(
val id: String, val uri: String, val index: Int, val state: String, val cyclic: Boolean,
val weekdays: Set<DayOfWeek>, val departureTime: LocalTime, val departureDate: LocalDate?, val profileId: String?,
) {
val active get() = state == TIMER_ON
}
/** Charging location. */
data class Profile(
val id: String, val uri: String, val name: String, val targetLevel: Int, val maxCurrent: Int,
val operations: List<String>, val providerId: String?,
)
/** Global charging options. The car returns them as the first profile. */
data class Options(
val id: String, val uri: String, val operations: List<String>, val maxCurrent: Int, val minLevel: Int, val temperature: Double,
val providerId: String? = null,
) {
val climateExtSupply get() = EXT_SUPPLY in operations
}
/** Off-peak power time window. The car stores [start] and [end] in UTC. */
data class Provider(val id: String, val uri: String, val cyclic: Boolean, val weekdays: Set<DayOfWeek>, val start: LocalTime, val end: LocalTime) {
// maps+more has no off switch. An empty window is off, and the car uses that for unset entries.
val active get() = start != end
fun off() = copy(start = LocalTime.MIDNIGHT, end = LocalTime.MIDNIGHT)
}
/** Live state. Values are the car's raw strings, null if the car does not report them. */
data class Status(
val charge: String?, val plug: String?, val climate: String?, val outsideTemperature: Double?, val temperatureUnit: String?,
val chargeMode: String? = null, val remainingMinutes: Int? = null,
)
/** [options] is null while the car reports no profiles. */
data class ChargingManager(val options: Options?, val profiles: List<Profile>, val timers: List<Timer>, val providers: List<Provider>)
const val TIMER_ON = "scheduled"
const val TIMER_OFF = "idle"
const val EXT_SUPPLY = "climateExtSupply"
// The values maps+more knows. The car also lists climateExtSupply and charge on normal locations and options.
val OPERATIONS = setOf(
"charge", "climate", EXT_SUPPLY, "autoDefrost", "SeatHeaterFrontLeft", "SeatHeaterFrontRight", "SeatHeaterRearLeft",
"SeatHeaterRearRight", "WindowHeaterFront", "WindowHeaterRear", "ParkHeater", "ParkHeaterAutomatic",
)
val TARGET_LEVELS = (50..100 step 10).toList()
val MIN_LEVELS = (0..100 step 10).toList()
// maps+more rule: 32 A only for the e-up! 300, i.e. VW model year L (2020) or later, and all other brands.
fun maxCurrents(vin: String) =
if (!vin.uppercase().startsWith("WVW") || vin.getOrElse(9) { 'A' }.uppercaseChar() >= 'L') listOf(5, 10, 13, 16, 32) else listOf(5, 10, 13, 16)
val TEMPERATURES = (31..60).map { it / 2.0 }
// maps+more allows this many locations besides the options entry.
const val MAX_LOCATIONS = 10
// TODO: guessed limit. maps+more has none. Check the longest name the car accepts.
const val NAME_MAX = 20
private val HMS = DateTimeFormatter.ofPattern("HH:mm:ss")
private val DATE_IN = DateTimeFormatter.ofPattern("d MMM yyyy", Locale.ENGLISH)
private val DATE_OUT = DateTimeFormatter.ofPattern("dd MMM yyyy", Locale.ENGLISH)
private fun JSONObject.list(key: String): List<String> =
optJSONArray(key)?.let { a -> List(a.length()) { a.getString(it) } } ?: emptyList()
private fun JSONObject.days() = list("weekdays").map { DayOfWeek.valueOf(it.uppercase()) }.toSet()
private fun JSONObject.linkId(key: String) = optJSONObject(key)?.optString("id")?.ifEmpty { null }
private fun Set<DayOfWeek>.toJson() = JSONArray(sorted().map { it.name.lowercase() })
private fun JSONObject.number(key: String) = optDouble(key).takeUnless { it.isNaN() }
fun parseBattery(o: JSONObject) = Battery(o.optString("name"), o.number("soc"))
fun parseRange(o: JSONObject) = Range(o.optString("name"), o.number("value"), o.optString("valueUnit"))
fun parseInfo(o: JSONObject) = Info(
o.optString("vehicleIdenticationNumber"), o.optString("vehicleDate"), o.optString("vehicleTime"),
o.optString("vehicleType"), o.optString("language"),
)
fun parseTimer(o: JSONObject) = Timer(
id = o.getString("id"),
uri = o.getString("uri"),
index = o.getString("name").last().digitToInt(),
state = o.getString("state"),
cyclic = o.optBoolean("cyclic"),
weekdays = o.days(),
departureTime = LocalTime.parse(o.getString("departureTime"), HMS),
departureDate = o.optString("departureDate").ifEmpty { null }?.let { LocalDate.parse(it, DATE_IN) },
profileId = o.linkId("profile"),
)
fun parseProfile(o: JSONObject) = Profile(
o.getString("id"), o.getString("uri"), o.getString("name"), o.getInt("targetLevel"), o.getInt("maxCurrent"),
o.list("operations"), o.linkId("powerProvider"),
)
fun parseOptions(o: JSONObject) = Options(
o.getString("id"), o.getString("uri"), o.list("operations"), o.getInt("maxCurrent"), o.getInt("minLevel"), o.getDouble("temperature"),
)
fun parseProvider(o: JSONObject) = Provider(
o.getString("id"), o.getString("uri"), o.optBoolean("cyclic"), o.days(),
LocalTime.parse(o.getString("preferredTimeStart"), HMS), LocalTime.parse(o.getString("preferredTimeEnd"), HMS),
)
private fun Car.items(path: String): List<JSONObject> =
JSONObject(get(path)).getJSONArray("data").let { a -> List(a.length()) { a.getJSONObject(it) } }
fun Car.battery() = parseBattery(items("/car/batteries/").first())
fun Car.range() = parseRange(items("/car/ranges/").first())
fun Car.info() = parseInfo(items("/car/info/").first())
fun Car.status(): Status {
fun first(path: String) = try {
items(path).firstOrNull()
} catch (e: IOException) {
null
}
val env = first("/car/environments/")
val charge = first("/chargingmanager/batteryCharges/")
return Status(
charge?.optString("state"),
first("/chargingmanager/batteryPlugs/")?.optString("plug"),
first("/chargingmanager/batteryClimates/")?.optString("state"),
env?.number("outsideTemperature"),
env?.optString("outsideTemperatureUnit"),
charge?.optString("mode")?.ifEmpty { null },
charge?.number("remainingTime")?.toInt(),
)
}
fun Car.chargingManager() =
chargingManagerOf(items("/chargingmanager/profiles/"), items("/chargingmanager/timers/"), items("/chargingmanager/providers/"))
internal fun chargingManagerOf(profiles: List<JSONObject>, timers: List<JSONObject>, providers: List<JSONObject>): ChargingManager {
// Some cars send no powerProvider link. maps+more then pairs both lists by position, options included.
fun link(i: Int, id: String?) = id ?: providers.getOrNull(i)?.optString("id")?.takeIf { profiles.size == providers.size }
return ChargingManager(
profiles.firstOrNull()?.let { valid(it, ::parseOptions) }?.copy(providerId = link(0, null)),
profiles.withIndex().drop(1).mapNotNull { (i, o) -> valid(o, ::parseProfile)?.let { it.copy(providerId = link(i, it.providerId)) } },
timers.mapNotNull { valid(it, ::parseTimer) },
providers.mapNotNull { valid(it, ::parseProvider) },
)
}
// Without ignition the car lists placeholder entries with empty strings. maps+more drops them too.
private fun <T> valid(o: JSONObject, parse: (JSONObject) -> T): T? = try {
parse(o)
} catch (e: Exception) {
Log.d("Model", "Skipping incomplete entry ${o.optString("uri")}: $e")
null
}
fun Car.write(t: Timer) {
require(t.cyclic || t.departureDate != null) { "A one-time timer needs a date" }
require(!t.cyclic || t.weekdays.isNotEmpty()) { "A weekly timer needs at least one day" }
require(t.state == TIMER_ON || t.state == TIMER_OFF) { "Unknown timer state ${t.state}" }
// maps+more never sends the state together with the schedule.
update(t.uri, JSONObject()
.put("cyclic", t.cyclic)
.put("weekdays", t.weekdays.toJson())
.put("departureTime", t.departureTime.format(HMS))
.apply { t.departureDate?.let { put("departureDate", it.format(DATE_OUT)) } }
.apply { t.profileId?.let { put("profile", it) } })
update(t.uri, JSONObject().put("state", t.state))
}
fun Car.write(p: Profile) {
require(p.maxCurrent in maxCurrents(vin)) { "Invalid max current ${p.maxCurrent}" }
update(p.uri, p.toJson())
}
/** Adds a charging location. The car creates the linked off-peak time itself. */
fun Car.create(p: Profile) {
require(p.maxCurrent in maxCurrents(vin)) { "Invalid max current ${p.maxCurrent}" }
val before = chargingManager().profiles.map { it.id }.toSet()
require(before.size < MAX_LOCATIONS) { "The car has at most $MAX_LOCATIONS charging locations" }
post("/chargingmanager/profiles/", p.toJson())
if (chargingManager().profiles.none { it.id !in before && it.name == p.name }) throw IOException("The car did not add ${p.name}")
}
fun Car.delete(p: Profile) {
require(chargingManager().timers.none { it.profileId == p.id }) { "A timer uses this charging location" }
send("DELETE", p.uri).ok()
if (chargingManager().profiles.any { it.id == p.id }) throw IOException("The car did not delete ${p.name}")
}
/** A new charging location with the maps+more defaults. */
fun newProfile(vin: String) = Profile("", "", "", 100, maxCurrents(vin).last(), listOf("charge"), null)
private fun Profile.toJson(): JSONObject {
require(name.isNotBlank() && name.length <= NAME_MAX) { "Name must have 1 to $NAME_MAX characters" }
require(targetLevel in TARGET_LEVELS) { "Invalid target level $targetLevel" }
require(operations.all { it in OPERATIONS }) { "Invalid operations $operations" }
return JSONObject()
.put("name", name)
.put("targetLevel", targetLevel)
.put("maxCurrent", maxCurrent)
.put("operations", JSONArray(operations))
}
fun Car.write(o: Options) {
require(o.maxCurrent in maxCurrents(vin)) { "Invalid max current ${o.maxCurrent}" }
require(o.minLevel in MIN_LEVELS) { "Invalid min level ${o.minLevel}" }
require(o.temperature in TEMPERATURES) { "Invalid temperature ${o.temperature}" }
require(o.operations.all { it in OPERATIONS }) { "Invalid operations ${o.operations}" }
update(o.uri, JSONObject()
.put("operations", JSONArray(o.operations))
.put("maxCurrent", o.maxCurrent)
.put("minLevel", o.minLevel)
.put("temperature", o.temperature))
}
fun Car.write(p: Provider) = update(p.uri, JSONObject()
.put("weekdays", p.weekdays.toJson())
.put("preferredTimeStart", p.start.format(HMS))
.put("preferredTimeEnd", p.end.format(HMS)))
// Like maps+more: only the time moves. Weekdays and dates stay local, even across midnight.
fun Timer.shifted(offsetSeconds: Int) = copy(departureTime = departureTime.plusSeconds(offsetSeconds.toLong()))
fun Provider.shifted(offsetSeconds: Int) = copy(start = start.plusSeconds(offsetSeconds.toLong()), end = end.plusSeconds(offsetSeconds.toLong()))
/** The next active departure after [now]. [timers] must be in local time. */
fun nextDeparture(timers: List<Timer>, now: ZonedDateTime): Pair<Timer, ZonedDateTime>? =
timers.filter { it.active }.mapNotNull { t ->
val dates = if (t.cyclic) (0L..7L).map { now.toLocalDate().plusDays(it) }.filter { it.dayOfWeek in t.weekdays }
else listOfNotNull(t.departureDate)
dates.map { ZonedDateTime.of(it, t.departureTime, now.zone) }.firstOrNull { it.isAfter(now) }?.let { t to it }
}.minByOrNull { it.second }
// The car wraps single elements in {"status": "ok", "data": {...}}.
private fun Car.element(uri: String) = JSONObject(get(uri)).let { it.optJSONObject("data") ?: it }
/** POSTs the fields of [fields] that differ on the car, then reads the element back to check them. */
private fun Car.update(uri: String, fields: JSONObject) {
val before = element(uri)
val changes = JSONObject()
fields.keys().forEach { if (!matches(fields.get(it), before.opt(it))) changes.put(it, fields.get(it)) }
if (changes.length() == 0) return
post(uri, changes)
val actual = element(uri)
if (!matches(changes, actual)) throw IOException("The car did not apply all changes. Sent $changes, car has $actual")
}
/** True if every value in [sent] is also in [actual]. [actual] may have more keys. A sent ID matches a linked object. */
internal fun matches(sent: Any?, actual: Any?): Boolean = when (sent) {
is String -> sent == actual || (actual is JSONObject && sent == actual.opt("id"))
is JSONObject -> actual is JSONObject && sent.keys().asSequence().all { matches(sent.get(it), actual.opt(it)) }
is JSONArray -> actual is JSONArray && sent.length() == actual.length() && (0 until sent.length()).all { matches(sent.get(it), actual.get(it)) }
is Number -> actual is Number && sent.toDouble() == actual.toDouble()
else -> sent == actual
}
Aapp/src/main/java/de/upapp/Screens.kt
@@ -0,0 +1,638 @@
@file:OptIn(ExperimentalMaterial3Api::class, ExperimentalLayoutApi::class)
package de.upapp
import android.text.format.DateFormat
import androidx.annotation.StringRes
import androidx.compose.foundation.background
import androidx.compose.foundation.horizontalScroll
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.ColumnScope
import androidx.compose.foundation.layout.ExperimentalLayoutApi
import androidx.compose.foundation.layout.FlowRow
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.layout.width
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.foundation.verticalScroll
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Edit
import androidx.compose.material.icons.filled.Lock
import androidx.compose.material.icons.outlined.Info
import androidx.compose.material3.AlertDialog
import androidx.compose.material3.Button
import androidx.compose.material3.Card
import androidx.compose.material3.CardDefaults
import androidx.compose.material3.DatePicker
import androidx.compose.material3.DatePickerDialog
import androidx.compose.material3.ExperimentalMaterial3Api
import androidx.compose.material3.FilledTonalButton
import androidx.compose.material3.FilterChip
import androidx.compose.material3.HorizontalDivider
import androidx.compose.material3.Icon
import androidx.compose.material3.IconButton
import androidx.compose.material3.LinearProgressIndicator
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.ModalBottomSheet
import androidx.compose.material3.OutlinedButton
import androidx.compose.material3.OutlinedTextField
import androidx.compose.material3.SegmentedButton
import androidx.compose.material3.SegmentedButtonDefaults
import androidx.compose.material3.SingleChoiceSegmentedButtonRow
import androidx.compose.material3.Surface
import androidx.compose.material3.Switch
import androidx.compose.material3.Text
import androidx.compose.material3.TextButton
import androidx.compose.material3.TimePicker
import androidx.compose.material3.DropdownMenuItem
import androidx.compose.material3.ExposedDropdownMenuAnchorType
import androidx.compose.material3.ExposedDropdownMenuBox
import androidx.compose.material3.ExposedDropdownMenuDefaults
import androidx.compose.material3.rememberDatePickerState
import androidx.compose.material3.rememberModalBottomSheetState
import androidx.compose.material3.rememberTimePickerState
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.platform.LocalConfiguration
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.text.font.FontFamily
import androidx.compose.ui.unit.dp
import java.time.DayOfWeek
import java.time.Instant
import java.time.LocalDate
import java.time.LocalTime
import java.time.ZoneId
import java.time.ZoneOffset
import java.time.ZonedDateTime
import java.time.format.DateTimeFormatter
import java.time.format.FormatStyle
import java.time.format.TextStyle
import java.util.Locale
import kotlin.math.roundToInt
enum class Topic(@StringRes val title: Int, @StringRes val body: Int, @StringRes val note: Int? = null) {
BATTERY(R.string.battery, R.string.info_battery),
STATUS(R.string.charging_status, R.string.info_status),
RANGE(R.string.range, R.string.info_range),
NEXT(R.string.next_departure, R.string.info_next),
CAR(R.string.car, R.string.info_car),
TIMERS(R.string.departure_timers, R.string.info_timers, R.string.note_timers_utc),
PROFILES(R.string.charging_locations, R.string.info_profiles),
OPTIONS(R.string.options, R.string.info_options),
EXT_SUPPLY(R.string.climate_ext_supply, R.string.info_ext_supply),
MAX_CURRENT(R.string.max_current, R.string.info_max_current),
MIN_LEVEL(R.string.min_level, R.string.info_min_level),
TEMPERATURE(R.string.temperature, R.string.info_temperature),
PROVIDERS(R.string.offpeak, R.string.info_providers, R.string.note_offpeak_utc),
PATH(R.string.path, R.string.info_path),
POST(R.string.json_body, R.string.info_post, R.string.note_post),
PIN(R.string.registration, R.string.info_pin, R.string.note_pin),
READ_ONLY(R.string.read_only_title, R.string.info_read_only),
}
private val TIME = DateTimeFormatter.ofLocalizedTime(FormatStyle.SHORT)
private val DATE = DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM)
private fun localOffset() = ZoneId.systemDefault().rules.getOffset(Instant.now()).totalSeconds
private fun temperatureLabel(t: Double) = "$t °C"
private fun operationsLabel(ops: List<String>) =
listOfNotNull("🔌".takeIf { "charge" in ops }, "❄️/🔥".takeIf { "climate" in ops }).joinToString(" ")
// Shared shell for screens
@Composable
private fun Screen(content: @Composable ColumnScope.() -> Unit) = Column(
Modifier.verticalScroll(rememberScrollState()).padding(16.dp),
verticalArrangement = Arrangement.spacedBy(12.dp),
content = content,
)
@Composable
fun InfoButton(topic: Topic) {
var open by remember { mutableStateOf(false) }
IconButton(onClick = { open = true }, modifier = Modifier.size(32.dp)) {
Icon(Icons.Outlined.Info, stringResource(R.string.more_info), Modifier.size(18.dp))
}
if (open) Sheet(onDismiss = { open = false }) {
Text(stringResource(topic.title), style = MaterialTheme.typography.headlineSmall)
stringResource(topic.body).split("\n\n").forEach { Text(it) }
topic.note?.let { Note(stringResource(it)) }
Row(Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.End) {
TextButton(onClick = { open = false }) { Text(stringResource(R.string.close)) }
}
}
}
@Composable
private fun Sheet(onDismiss: () -> Unit, content: @Composable ColumnScope.() -> Unit) =
ModalBottomSheet(onDismissRequest = onDismiss, sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)) {
Column(
Modifier.verticalScroll(rememberScrollState()).padding(horizontal = 24.dp).padding(bottom = 24.dp),
verticalArrangement = Arrangement.spacedBy(12.dp),
content = content,
)
}
@Composable
private fun Note(text: String) = Surface(color = MaterialTheme.colorScheme.tertiaryContainer, shape = MaterialTheme.shapes.small) {
Text(text, Modifier.padding(horizontal = 12.dp, vertical = 8.dp), style = MaterialTheme.typography.bodySmall)
}
@Composable
private fun Section(@StringRes title: Int, topic: Topic, modifier: Modifier = Modifier, content: @Composable ColumnScope.() -> Unit) =
Card(modifier.fillMaxWidth()) {
Column(Modifier.padding(16.dp)) {
Row(verticalAlignment = Alignment.CenterVertically) {
Text(stringResource(title), style = MaterialTheme.typography.titleSmall)
InfoButton(topic)
}
content()
}
}
@Composable
private fun SectionTitle(@StringRes title: Int, topic: Topic) = Row(Modifier.padding(top = 8.dp), verticalAlignment = Alignment.CenterVertically) {
Text(stringResource(title), style = MaterialTheme.typography.titleSmall, color = MaterialTheme.colorScheme.primary)
InfoButton(topic)
}
@Composable
private fun KeyValue(@StringRes key: Int, value: String, topic: Topic? = null) =
Row(Modifier.fillMaxWidth().padding(vertical = 4.dp), verticalAlignment = Alignment.CenterVertically) {
Text(stringResource(key), color = MaterialTheme.colorScheme.onSurfaceVariant)
topic?.let { InfoButton(it) }
Spacer(Modifier.weight(1f))
Text(value)
}
@Composable
private fun EditButton(onClick: () -> Unit) = FilledTonalButton(onClick = onClick) {
Icon(Icons.Default.Edit, null, Modifier.size(18.dp))
Spacer(Modifier.width(8.dp))
Text(stringResource(R.string.edit))
}
@Composable
private fun locale(): Locale = LocalConfiguration.current.locales[0]
@Composable
private fun dayLetter(d: DayOfWeek) = d.getDisplayName(TextStyle.NARROW, locale())
@Composable
private fun Days(days: Set<DayOfWeek>) = Row(Modifier.padding(top = 8.dp), horizontalArrangement = Arrangement.spacedBy(4.dp)) {
DayOfWeek.entries.forEach { d ->
val on = d in days
Box(
Modifier.size(28.dp).background(if (on) MaterialTheme.colorScheme.primary else Color.Transparent, CircleShape),
contentAlignment = Alignment.Center,
) {
Text(dayLetter(d), style = MaterialTheme.typography.labelMedium, color = if (on) MaterialTheme.colorScheme.onPrimary else MaterialTheme.colorScheme.onSurfaceVariant)
}
}
}
// Overview
private val PLUG_STATES = mapOf("plugged" to R.string.plugged_in, "unPlugged" to R.string.not_plugged_in)
private val CHARGE_STATES = mapOf(
"idle" to R.string.state_not_charging, "running" to R.string.state_charging, "completed" to R.string.state_completed,
"conservating" to R.string.state_conserving,
)
private val CLIMATE_STATES = mapOf(
"idle" to R.string.climate_off, "running" to R.string.state_running, "completed" to R.string.state_completed,
"abortedIgnitionOn" to R.string.climate_ignition_on, "abortedNoExternalSupply" to R.string.climate_no_supply,
"abortedBatteryLow" to R.string.climate_battery_low,
)
@Composable
private fun stateLabel(value: String, known: Map<String, Int>) = when {
value in known -> stringResource(known.getValue(value))
value.startsWith("aborted") -> stringResource(R.string.state_aborted)
else -> "–"
}
@Composable
fun Overview(vm: MainViewModel) = Screen {
vm.battery?.let { b ->
Section(R.string.battery, Topic.BATTERY) {
Text(b.soc?.let { "${it.roundToInt()} %" } ?: "–", style = MaterialTheme.typography.displayMedium)
b.soc?.let { soc -> LinearProgressIndicator(progress = { (soc / 100).toFloat() }, modifier = Modifier.fillMaxWidth().padding(top = 8.dp)) }
}
}
vm.status?.let { s ->
Section(R.string.charging_status, Topic.STATUS) {
s.plug?.let { KeyValue(R.string.plug, stateLabel(it, PLUG_STATES)) }
s.charge?.let { KeyValue(R.string.charging_state, listOfNotNull(stateLabel(it, CHARGE_STATES), s.chargeMode).joinToString(" · ")) }
s.remainingMinutes?.takeIf { s.charge == "running" }?.let { KeyValue(R.string.remaining_time, "%d:%02d h".format(it / 60, it % 60)) }
s.climate?.let { KeyValue(R.string.climate_state, stateLabel(it, CLIMATE_STATES)) }
s.outsideTemperature?.let { t ->
KeyValue(R.string.outside_temperature, "$t " + if (s.temperatureUnit?.contains("fahrenheit", true) == true) "°F" else "°C")
}
}
}
Row(horizontalArrangement = Arrangement.spacedBy(12.dp)) {
Section(R.string.range, Topic.RANGE, Modifier.weight(1f)) {
Text(vm.range?.value?.let { "${it.roundToInt()} ${vm.range?.unit}" } ?: "–", style = MaterialTheme.typography.headlineMedium)
}
Section(R.string.next_departure, Topic.NEXT, Modifier.weight(1f)) {
val cm = vm.charging
val next = cm?.let { nextDeparture(it.timers.map { t -> t.shifted(localOffset()) }, ZonedDateTime.now()) }
if (next == null) {
Text(stringResource(R.string.none), style = MaterialTheme.typography.headlineMedium)
} else {
Text(next.second.format(TIME), style = MaterialTheme.typography.headlineMedium)
val day = next.second.dayOfWeek.getDisplayName(TextStyle.SHORT, locale())
Text("$day · ${cm.profiles.find { it.id == next.first.profileId }?.name ?: "–"}", color = MaterialTheme.colorScheme.onSurfaceVariant)
}
}
}
vm.info?.let { i ->
Section(R.string.car, Topic.CAR) {
KeyValue(R.string.vin, i.vin)
KeyValue(R.string.type, i.type)
KeyValue(R.string.car_clock, "${i.date} ${i.time}")
KeyValue(R.string.language, i.language)
}
}
}
// Charging manager
@Composable
fun Charging(vm: MainViewModel) {
val cm = vm.charging ?: return Waiting(null)
val offset = remember { localOffset() }
var timer by remember { mutableStateOf<Timer?>(null) }
var provider by remember { mutableStateOf<Provider?>(null) }
var profile by remember { mutableStateOf<Profile?>(null) }
var options by remember { mutableStateOf<Options?>(null) }
val vin = vm.car?.vin.orEmpty()
val unnamed = stringResource(R.string.offpeak)
fun owner(p: Provider) = cm.profiles.find { it.providerId == p.id }?.name ?: unnamed
val off = stringResource(R.string.off)
fun window(p: Provider) = if (p.active) "${p.start.format(TIME)} – ${p.end.format(TIME)}" else off
fun offpeak(id: String?) = cm.providers.find { it.id == id }?.shifted(offset)?.let(::window)
val currents = remember(vin) { maxCurrents(vin) }
Screen {
if (!vm.writesEnabled) Card(colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.surfaceVariant)) {
Row(Modifier.padding(start = 16.dp, end = 4.dp, top = 8.dp, bottom = 8.dp), verticalAlignment = Alignment.CenterVertically) {
Icon(Icons.Default.Lock, null, Modifier.size(18.dp))
Text(stringResource(R.string.read_only), Modifier.weight(1f).padding(horizontal = 12.dp), style = MaterialTheme.typography.bodyMedium)
InfoButton(Topic.READ_ONLY)
}
}
if (cm.timers.isEmpty() && cm.profiles.isEmpty()) Note(stringResource(R.string.no_charging_data))
SectionTitle(R.string.departure_timers, Topic.TIMERS)
cm.timers.forEach { utc ->
val t = utc.shifted(offset)
Card {
Row(Modifier.padding(16.dp)) {
Column(Modifier.weight(1f)) {
Text(t.departureTime.format(TIME), style = MaterialTheme.typography.displaySmall)
val name = cm.profiles.find { it.id == t.profileId }?.name ?: "–"
Text("${stringResource(R.string.timer_n, t.index)} · $name", color = MaterialTheme.colorScheme.onSurfaceVariant)
if (t.cyclic) Days(t.weekdays) else Text(t.departureDate?.format(DATE) ?: "–")
if (vm.writesEnabled) Box(Modifier.padding(top = 12.dp)) { EditButton { timer = t } }
}
Switch(
checked = t.active,
onCheckedChange = if (vm.writesEnabled) { on -> vm.save { write(utc.copy(state = if (on) TIMER_ON else TIMER_OFF)) } } else null,
enabled = vm.writesEnabled,
)
}
}
}
SectionTitle(R.string.charging_locations, Topic.PROFILES)
cm.profiles.forEach { p ->
Card {
Column(Modifier.padding(16.dp)) {
Row {
Text(p.name, Modifier.weight(1f), style = MaterialTheme.typography.titleMedium)
Text(operationsLabel(p.operations))
}
KeyValue(R.string.charge_to, "${p.targetLevel} %")
KeyValue(R.string.max_current, "${p.maxCurrent} A")
offpeak(p.providerId)?.let { KeyValue(R.string.offpeak_short, it) }
if (vm.writesEnabled) EditButton { profile = p }
}
}
}
if (vm.writesEnabled && cm.profiles.size < MAX_LOCATIONS) OutlinedButton(onClick = { profile = newProfile(vin) }) {
Text(stringResource(R.string.add_location))
}
SectionTitle(R.string.options, Topic.OPTIONS)
cm.options?.let { o -> Card {
Column(Modifier.padding(16.dp)) {
KeyValue(R.string.climate_ext_supply, stringResource(if (o.climateExtSupply) R.string.yes else R.string.no), Topic.EXT_SUPPLY)
KeyValue(R.string.max_current, "${o.maxCurrent} A", Topic.MAX_CURRENT)
KeyValue(R.string.min_level, "${o.minLevel} %", Topic.MIN_LEVEL)
KeyValue(R.string.temperature, temperatureLabel(o.temperature), Topic.TEMPERATURE)
if (vm.writesEnabled) EditButton { options = o }
}
} }
SectionTitle(R.string.offpeak, Topic.PROVIDERS)
Card {
Column(Modifier.padding(horizontal = 16.dp, vertical = 8.dp)) {
// The car answers 403 to writes on the entry of the options profile.
cm.providers.filter { it.id != cm.options?.providerId }.forEachIndexed { i, utc ->
val p = utc.shifted(offset)
if (i > 0) HorizontalDivider()
Row(Modifier.padding(vertical = 8.dp)) {
Column(Modifier.weight(1f)) {
Text(owner(p), style = MaterialTheme.typography.titleMedium)
Text(window(p))
if (p.active) Days(p.weekdays)
if (vm.writesEnabled && p.active) Box(Modifier.padding(top = 12.dp)) { EditButton { provider = p } }
}
Switch(
checked = p.active,
onCheckedChange = if (vm.writesEnabled) { on ->
// Switching on opens the editor with the maps+more default window 22:00 to 06:00.
if (on) provider = p.copy(start = LocalTime.of(22, 0), end = LocalTime.of(6, 0), weekdays = p.weekdays.ifEmpty { DayOfWeek.entries.toSet() })
else vm.save { write(utc.off()) }
} else null,
enabled = vm.writesEnabled,
)
}
}
}
}
}
timer?.let { t ->
TimerEditor(t, cm.profiles, offset, onDismiss = { timer = null }) { edited ->
timer = null
vm.save { write(edited.shifted(-offset)) }
}
}
provider?.let { p ->
ProviderEditor(p, owner(p), onDismiss = { provider = null }) { edited ->
provider = null
vm.save { write(edited.shifted(-offset)) }
}
}
profile?.let { p ->
val deletable = p.uri.isNotEmpty() && cm.timers.none { it.profileId == p.id }
ProfileEditor(p, currents, onDismiss = { profile = null }, onDelete = if (deletable) { { profile = null; vm.save { delete(p) } } } else null) { edited ->
profile = null
vm.save { if (edited.uri.isEmpty()) create(edited) else write(edited) }
}
}
options?.let { o ->
OptionsEditor(o, currents, onDismiss = { options = null }) { edited ->
options = null
vm.save { write(edited) }
}
}
}
// Editors
@Composable
private fun Label(@StringRes text: Int) =
Text(stringResource(text), style = MaterialTheme.typography.labelLarge, color = MaterialTheme.colorScheme.onSurfaceVariant)
@Composable
private fun Actions(onCancel: () -> Unit, modifier: Modifier = Modifier, onSave: () -> Unit) =
Row(modifier.fillMaxWidth(), horizontalArrangement = Arrangement.spacedBy(8.dp, Alignment.End)) {
TextButton(onClick = onCancel) { Text(stringResource(R.string.cancel)) }
Button(onClick = onSave) { Text(stringResource(R.string.save)) }
}
@Composable
private fun RepeatToggle(cyclic: Boolean, onChange: (Boolean) -> Unit) = SingleChoiceSegmentedButtonRow(Modifier.fillMaxWidth()) {
SegmentedButton(selected = cyclic, onClick = { onChange(true) }, shape = SegmentedButtonDefaults.itemShape(0, 2)) { Text(stringResource(R.string.weekly)) }
SegmentedButton(selected = !cyclic, onClick = { onChange(false) }, shape = SegmentedButtonDefaults.itemShape(1, 2)) { Text(stringResource(R.string.once)) }
}
@Composable
private fun DayPicker(days: Set<DayOfWeek>, onChange: (Set<DayOfWeek>) -> Unit) = FlowRow(horizontalArrangement = Arrangement.spacedBy(4.dp)) {
DayOfWeek.entries.forEach { d ->
FilterChip(selected = d in days, onClick = { onChange(if (d in days) days - d else days + d) }, label = { Text(dayLetter(d)) })
}
}
@Composable
private fun <T> Dropdown(@StringRes label: Int, options: List<T>, selected: T, text: (T) -> String, onSelect: (T) -> Unit) {
var open by remember { mutableStateOf(false) }
ExposedDropdownMenuBox(expanded = open, onExpandedChange = { open = it }) {
OutlinedTextField(
text(selected), {}, readOnly = true, singleLine = true,
label = { Text(stringResource(label)) },
trailingIcon = { ExposedDropdownMenuDefaults.TrailingIcon(open) },
modifier = Modifier.menuAnchor(ExposedDropdownMenuAnchorType.PrimaryNotEditable).fillMaxWidth(),
)
ExposedDropdownMenu(expanded = open, onDismissRequest = { open = false }) {
options.forEach { DropdownMenuItem(text = { Text(text(it)) }, onClick = { onSelect(it); open = false }) }
}
}
}
/** A time as a button. Opens the clock dial, so no keyboard pops up. */
@Composable
private fun TimeField(@StringRes label: Int, value: LocalTime, onChange: (LocalTime) -> Unit) {
var open by remember { mutableStateOf(false) }
Row(Modifier.fillMaxWidth(), verticalAlignment = Alignment.CenterVertically) {
Text(stringResource(label), Modifier.weight(1f))
OutlinedButton(onClick = { open = true }) { Text(value.format(TIME), style = MaterialTheme.typography.titleLarge) }
}
if (open) {
val state = rememberTimePickerState(value.hour, value.minute, DateFormat.is24HourFormat(LocalContext.current))
AlertDialog(
onDismissRequest = { open = false },
confirmButton = { TextButton(onClick = { onChange(LocalTime.of(state.hour, state.minute)); open = false }) { Text(stringResource(R.string.ok)) } },
dismissButton = { TextButton(onClick = { open = false }) { Text(stringResource(R.string.cancel)) } },
text = { TimePicker(state) },
)
}
}
@Composable
private fun SwitchRow(@StringRes text: Int, checked: Boolean, onChange: (Boolean) -> Unit) =
Row(Modifier.fillMaxWidth(), verticalAlignment = Alignment.CenterVertically) {
Text(stringResource(text), Modifier.weight(1f))
Switch(checked = checked, onCheckedChange = onChange)
}
@Composable
private fun Error(@StringRes text: Int?) = text?.let { Text(stringResource(it), color = MaterialTheme.colorScheme.error) }
/** Edits [local], a timer already moved to local time. */
@Composable
private fun TimerEditor(local: Timer, profiles: List<Profile>, offset: Int, onDismiss: () -> Unit, onSave: (Timer) -> Unit) {
var draft by remember { mutableStateOf(local) }
var pickDate by remember { mutableStateOf(false) }
var error by remember { mutableStateOf<Int?>(null) }
Sheet(onDismiss) {
Text(stringResource(R.string.timer_n, draft.index), style = MaterialTheme.typography.headlineSmall)
TimeField(R.string.departure_time_local, draft.departureTime) { draft = draft.copy(departureTime = it) }
Text(
stringResource(R.string.car_stores_utc, draft.shifted(-offset).departureTime.format(TIME)),
style = MaterialTheme.typography.bodySmall,
)
Label(R.string.repeat)
RepeatToggle(draft.cyclic) { draft = draft.copy(cyclic = it) }
if (draft.cyclic) {
Label(R.string.days)
DayPicker(draft.weekdays) { draft = draft.copy(weekdays = it) }
} else {
Label(R.string.date)
OutlinedButton(onClick = { pickDate = true }) {
Text(draft.departureDate?.format(DATE) ?: stringResource(R.string.pick_date))
}
}
Dropdown(R.string.charging_location, profiles, profiles.find { it.id == draft.profileId }, { it?.name ?: "–" }) { draft = draft.copy(profileId = it?.id) }
SwitchRow(R.string.timer_active, draft.active) { draft = draft.copy(state = if (it) TIMER_ON else TIMER_OFF) }
Error(error)
Actions(onDismiss) {
val result = draft
error = when {
result.cyclic && result.weekdays.isEmpty() -> R.string.err_pick_day
!result.cyclic && result.departureDate == null -> R.string.err_pick_date
else -> null
}
if (error == null) onSave(result)
}
}
if (pickDate) {
val state = rememberDatePickerState(draft.departureDate?.atStartOfDay(ZoneOffset.UTC)?.toInstant()?.toEpochMilli())
DatePickerDialog(
onDismissRequest = { pickDate = false },
confirmButton = {
TextButton(onClick = {
state.selectedDateMillis?.let { draft = draft.copy(departureDate = Instant.ofEpochMilli(it).atZone(ZoneOffset.UTC).toLocalDate()) }
pickDate = false
}) { Text(stringResource(R.string.ok)) }
},
) { DatePicker(state) }
}
}
@Composable
private fun ProviderEditor(p: Provider, title: String, onDismiss: () -> Unit, onSave: (Provider) -> Unit) {
var draft by remember { mutableStateOf(p) }
Sheet(onDismiss) {
Text(title, style = MaterialTheme.typography.headlineSmall)
TimeField(R.string.start, draft.start) { draft = draft.copy(start = it) }
TimeField(R.string.end, draft.end) { draft = draft.copy(end = it) }
when {
draft.start == draft.end -> Text(stringResource(R.string.empty_window), style = MaterialTheme.typography.bodySmall)
draft.end < draft.start -> Text(stringResource(R.string.overnight), style = MaterialTheme.typography.bodySmall)
}
Label(R.string.days)
DayPicker(draft.weekdays) { draft = draft.copy(weekdays = it) }
Actions(onDismiss) { onSave(draft) }
}
}
@Composable
private fun ProfileEditor(p: Profile, currents: List<Int>, onDismiss: () -> Unit, onDelete: (() -> Unit)?, onSave: (Profile) -> Unit) {
var draft by remember { mutableStateOf(p) }
var error by remember { mutableStateOf<Int?>(null) }
var confirmDelete by remember { mutableStateOf(false) }
Sheet(onDismiss) {
Text(if (p.uri.isEmpty()) stringResource(R.string.new_location) else p.name, style = MaterialTheme.typography.headlineSmall)
OutlinedTextField(
draft.name,
{ draft = draft.copy(name = it.take(NAME_MAX)) },
Modifier.fillMaxWidth(),
label = { Text(stringResource(R.string.name)) },
singleLine = true,
)
Dropdown(R.string.charge_to, TARGET_LEVELS, draft.targetLevel, { "$it %" }) { draft = draft.copy(targetLevel = it) }
Dropdown(R.string.max_current, currents, draft.maxCurrent, { "$it A" }) { draft = draft.copy(maxCurrent = it) }
SwitchRow(R.string.op_charge, "charge" in draft.operations) { draft = draft.copy(operations = draft.operations.toggle("charge", it)) }
SwitchRow(R.string.op_climate, "climate" in draft.operations) { draft = draft.copy(operations = draft.operations.toggle("climate", it)) }
Error(error)
if (p.uri.isNotEmpty() && onDelete == null) Text(stringResource(R.string.location_in_use), style = MaterialTheme.typography.bodySmall)
Row(verticalAlignment = Alignment.CenterVertically) {
if (onDelete != null) TextButton(onClick = { confirmDelete = true }) {
Text(stringResource(R.string.delete), color = MaterialTheme.colorScheme.error)
}
Actions(onDismiss, Modifier.weight(1f)) {
error = if (draft.name.isBlank()) R.string.err_name else null
if (error == null) onSave(draft.copy(name = draft.name.trim()))
}
}
}
if (confirmDelete && onDelete != null) AlertDialog(
onDismissRequest = { confirmDelete = false },
title = { Text(stringResource(R.string.delete_location_title, p.name)) },
text = { Text(stringResource(R.string.delete_location_text)) },
confirmButton = { TextButton(onClick = onDelete) { Text(stringResource(R.string.delete), color = MaterialTheme.colorScheme.error) } },
dismissButton = { TextButton(onClick = { confirmDelete = false }) { Text(stringResource(R.string.cancel)) } },
)
}
@Composable
private fun OptionsEditor(o: Options, currents: List<Int>, onDismiss: () -> Unit, onSave: (Options) -> Unit) {
var draft by remember { mutableStateOf(o) }
Sheet(onDismiss) {
Text(stringResource(R.string.options), style = MaterialTheme.typography.headlineSmall)
SwitchRow(R.string.climate_ext_supply, draft.climateExtSupply) { draft = draft.copy(operations = draft.operations.toggle(EXT_SUPPLY, it)) }
Dropdown(R.string.max_current, currents, draft.maxCurrent, { "$it A" }) { draft = draft.copy(maxCurrent = it) }
Dropdown(R.string.min_level, MIN_LEVELS, draft.minLevel, { "$it %" }) { draft = draft.copy(minLevel = it) }
Dropdown(R.string.temperature, TEMPERATURES, draft.temperature, ::temperatureLabel) { draft = draft.copy(temperature = it) }
Actions(onDismiss) { onSave(draft) }
}
}
private fun List<String>.toggle(value: String, on: Boolean) = if (on) (this - value) + value else this - value
// Console
@Composable
fun Console(vm: MainViewModel) = Screen {
var path by rememberSaveable { mutableStateOf("/car/batteries") }
var body by rememberSaveable { mutableStateOf("{}") }
OutlinedTextField(
path, { path = it }, Modifier.fillMaxWidth(),
label = { Text(stringResource(R.string.path)) },
trailingIcon = { InfoButton(Topic.PATH) },
singleLine = true,
textStyle = MaterialTheme.typography.bodyLarge.copy(fontFamily = FontFamily.Monospace),
)
Button(onClick = { vm.console("GET", path, null) }, enabled = !vm.busy) { Text("GET") }
OutlinedTextField(
body, { body = it }, Modifier.fillMaxWidth(),
label = { Text(stringResource(R.string.json_body)) },
trailingIcon = { InfoButton(Topic.POST) },
enabled = vm.writesEnabled,
minLines = 3,
textStyle = MaterialTheme.typography.bodyLarge.copy(fontFamily = FontFamily.Monospace),
)
Row(verticalAlignment = Alignment.CenterVertically, horizontalArrangement = Arrangement.spacedBy(12.dp)) {
FilledTonalButton(onClick = { vm.console("POST", path, body) }, enabled = vm.writesEnabled && !vm.busy) { Text("POST") }
if (!vm.writesEnabled) Text(stringResource(R.string.post_disabled), style = MaterialTheme.typography.bodySmall)
}
Surface(color = MaterialTheme.colorScheme.inverseSurface, shape = MaterialTheme.shapes.medium, modifier = Modifier.fillMaxWidth()) {
Text(
vm.consoleOut.ifEmpty { stringResource(R.string.response_hint) },
Modifier.horizontalScroll(rememberScrollState()).padding(12.dp),
fontFamily = FontFamily.Monospace,
style = MaterialTheme.typography.bodySmall,
)
}
}
Aapp/src/main/java/de/upapp/Tls.kt
@@ -0,0 +1,124 @@
package de.upapp
import android.util.Log
import org.bouncycastle.tls.AlertDescription
import org.bouncycastle.tls.BasicTlsPSKIdentity
import org.bouncycastle.tls.CertificateRequest
import org.bouncycastle.tls.CipherSuite
import org.bouncycastle.tls.DefaultTlsClient
import org.bouncycastle.tls.PSKTlsClient
import org.bouncycastle.tls.ProtocolVersion
import org.bouncycastle.tls.TlsAuthentication
import org.bouncycastle.tls.TlsClientProtocol
import org.bouncycastle.tls.TlsContext
import org.bouncycastle.tls.TlsCredentials
import org.bouncycastle.tls.TlsFatalAlert
import org.bouncycastle.tls.TlsServerCertificate
import org.bouncycastle.tls.TlsUtils
import org.bouncycastle.tls.crypto.impl.bc.BcTlsCrypto
import java.io.InputStream
import java.io.OutputStream
import java.security.GeneralSecurityException
import java.security.MessageDigest
import java.security.SecureRandom
import java.security.cert.CertPathValidator
import java.security.cert.CertificateFactory
import java.security.cert.PKIXParameters
import java.security.cert.TrustAnchor
import java.security.cert.X509Certificate
private val crypto = BcTlsCrypto(SecureRandom())
/** Root CA of the car's registration certificate, bundled in maps+more. */
val VIWI_ROOT_CA: X509Certificate = parseCertificate("""
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
""".trim().byteInputStream())
private fun parseCertificate(input: InputStream) = CertificateFactory.getInstance("X.509").generateCertificate(input) as X509Certificate
/** TLS for the one-time registration. Returns the connection and the PIN that the car display also shows. */
fun registrationTls(input: InputStream, output: OutputStream, root: X509Certificate = VIWI_ROOT_CA): Pair<TlsClientProtocol, String> {
lateinit var pin: String
val tls = TlsClientProtocol(input, output)
tls.connect(object : DefaultTlsClient(crypto) {
override fun getSupportedVersions(): Array<ProtocolVersion> = ProtocolVersion.TLSv12.only()
override fun getSupportedCipherSuites() = intArrayOf(CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256)
// The car does not support RFC 5746.
override fun notifySecureRenegotiation(secureRenegotiation: Boolean) {}
override fun getAuthentication() = object : TlsAuthentication {
override fun notifyServerCertificate(serverCertificate: TlsServerCertificate) =
verifyChain(serverCertificate.certificate.certificateList.map { parseCertificate(it.encoded.inputStream()) }, root)
override fun getClientCredentials(certificateRequest: CertificateRequest): TlsCredentials? = null
}
override fun notifyHandshakeComplete() {
super.notifyHandshakeComplete()
pin = registrationPin(context)
}
})
return tls to pin
}
// Checks the VW signatures only. The car cannot renew its certificate, so dates and host name are ignored.
private fun verifyChain(chain: List<X509Certificate>, root: X509Certificate) {
chain.forEach { Log.i("Tls", "Car certificate: ${it.subjectX500Principal}, valid ${it.notBefore} to ${it.notAfter}") }
val path = CertificateFactory.getInstance("X.509").generateCertPath(chain.filter { it != root })
val params = PKIXParameters(setOf(TrustAnchor(root, null))).apply {
isRevocationEnabled = false
date = (chain + root).maxOf { it.notBefore }
}
try {
CertPathValidator.getInstance("PKIX").validate(path, params)
} catch (e: GeneralSecurityException) {
throw TlsFatalAlert(AlertDescription.bad_certificate, "The car certificate is not signed by Volkswagen: ${e.message}", e)
}
}
// AES-128-GCM key block: client write key, then server write key, 16 bytes each, no MAC keys.
internal fun registrationPin(context: TlsContext): String {
val sp = context.securityParametersConnection
val keys = TlsUtils.PRF(sp, sp.masterSecret, "key expansion", sp.serverRandom + sp.clientRandom, 32).extract()
return pin(keys.copyOfRange(0, 16), keys.copyOfRange(16, 32))
}
internal fun pin(clientWriteKey: ByteArray, serverWriteKey: ByteArray): String {
val d = MessageDigest.getInstance("SHA-256").digest(clientWriteKey + serverWriteKey)
val t = (0..3).sumOf { (d[it].toLong() and 0xFF) shl (8 * it) }
return (t % 1_000_000).toString().padStart(6, '0')
}
/** TLS with the pre-shared key from registration. */
fun sessionTls(input: InputStream, output: OutputStream, identity: String, key: String) = TlsClientProtocol(input, output).apply {
connect(object : PSKTlsClient(crypto, BasicTlsPSKIdentity(identity, key.toByteArray())) {
override fun getSupportedVersions(): Array<ProtocolVersion> = ProtocolVersion.TLSv12.only()
override fun getSupportedCipherSuites() = intArrayOf(CipherSuite.TLS_PSK_WITH_AES_128_CBC_SHA256)
override fun notifySecureRenegotiation(secureRenegotiation: Boolean) {}
})
}
Aapp/src/main/java/de/upapp/Tunnel.kt
@@ -0,0 +1,230 @@
package de.upapp
import android.util.Log
import java.io.Closeable
import java.io.IOException
import java.io.InputStream
import java.io.OutputStream
import java.net.SocketTimeoutException
import java.util.concurrent.ConcurrentHashMap
import java.util.concurrent.LinkedBlockingQueue
import java.util.concurrent.TimeUnit
import java.util.concurrent.atomic.AtomicInteger
import kotlin.concurrent.thread
internal const val TRANSMIT = 0
internal const val OPEN = 1
internal const val CLOSE = 2
internal const val HEARTBEAT = 3
private const val MAX_PAYLOAD = 0xFFFF
// Values from maps+more.
private const val HEARTBEAT_MS = 5_000L
private const val SILENCE_MS = 15_000L
internal class Segment(val port: Int, val type: Int, val data: ByteArray)
internal fun frame(port: Int, type: Int, extra: ByteArray = ByteArray(0)) =
byteArrayOf(port.toByte(), (port shr 8).toByte(), type.toByte()) + extra
internal fun u16(v: Int) = byteArrayOf(v.toByte(), (v shr 8).toByte())
private fun u16(b: ByteArray, at: Int) = (b[at].toInt() and 0xFF) or ((b[at + 1].toInt() and 0xFF) shl 8)
/** Returns the first segment in [b] and its encoded size, or null if [b] holds no complete segment. */
internal fun decode(b: ByteArray): Pair<Segment, Int>? {
if (b.size < 3) return null
val port = u16(b, 0)
return when (val type = b[2].toInt() and 0xFF) {
CLOSE, HEARTBEAT -> Segment(port, type, ByteArray(0)) to 3
OPEN -> if (b.size < 5) null else Segment(port, type, b.copyOfRange(3, 5)) to 5
TRANSMIT -> {
if (b.size < 5) return null
val end = 5 + u16(b, 3)
if (b.size < end) null else Segment(port, type, b.copyOfRange(5, end)) to end
}
else -> throw IOException("Unknown segment type $type")
}
}
/** MIBBridge protocol: multiplexes virtual TCP connections to the car over one RFCOMM stream. */
class Tunnel(private val input: InputStream, private val output: OutputStream) : Closeable {
private val channels = ConcurrentHashMap<Int, Channel>()
private val nextPort = AtomicInteger()
@Volatile var closed = false
private set
@Volatile private var lastReceived = System.currentTimeMillis()
init {
thread(isDaemon = true, name = "tunnel") { readLoop() }
thread(isDaemon = true, name = "heartbeat") { heartbeatLoop() }
}
/** Opens a connection to [remotePort] on the car. Reads fail after [timeoutMs] without data. */
fun open(remotePort: Int, timeoutMs: Long = 15_000): Channel {
if (closed) throw IOException("Bluetooth connection closed")
while (true) {
val ch = Channel(0xC000 + (nextPort.getAndIncrement() and 0x3FFF), timeoutMs)
if (channels.putIfAbsent(ch.port, ch) == null) {
send(frame(ch.port, OPEN, u16(remotePort)))
return ch
}
}
}
override fun close() {
if (closed) return
closed = true
channels.values.forEach { it.pipe.end() }
channels.clear()
runCatching { input.close() }
runCatching { output.close() }
}
private fun send(bytes: ByteArray) = synchronized(output) {
output.write(bytes)
output.flush()
}
private fun heartbeatLoop() {
try {
while (!closed) {
send(frame(0, HEARTBEAT))
Thread.sleep(HEARTBEAT_MS)
if (System.currentTimeMillis() - lastReceived > SILENCE_MS) {
Log.w(TAG, "No data from the car for ${SILENCE_MS / 1000} s")
break
}
}
} catch (e: IOException) {
if (!closed) Log.w(TAG, "Heartbeat failed", e)
} finally {
close()
}
}
private fun readLoop() {
val chunk = ByteArray(4096)
var buf = ByteArray(0)
try {
while (true) {
val n = input.read(chunk)
if (n < 0) break
lastReceived = System.currentTimeMillis()
buf += chunk.copyOf(n)
while (true) {
val (segment, size) = decode(buf) ?: break
buf = buf.copyOfRange(size, buf.size)
handle(segment)
}
}
} catch (e: IOException) {
if (!closed) Log.w(TAG, "Tunnel read failed", e)
} finally {
close()
}
}
private fun handle(s: Segment) {
when (s.type) {
HEARTBEAT -> {}
TRANSMIT -> channels[s.port]?.pipe?.put(s.data) ?: Log.w(TAG, "Data for unknown port ${s.port}")
CLOSE -> channels[s.port]?.onCarClose()
else -> Log.w(TAG, "Unexpected segment type ${s.type}")
}
}
inner class Channel(val port: Int, timeoutMs: Long) : Closeable {
internal val pipe = Pipe(timeoutMs)
@Volatile private var closedByCar = false
@Volatile private var closedByUs = false
val input: InputStream = pipe.input
val output: OutputStream = object : OutputStream() {
override fun write(b: Int) = write(byteArrayOf(b.toByte()), 0, 1)
override fun write(b: ByteArray, off: Int, len: Int) {
if (closedByCar || closed) throw IOException("Connection closed by the car")
var at = off
while (at < off + len) {
val n = minOf(MAX_PAYLOAD, off + len - at)
send(frame(port, TRANSMIT, u16(n) + b.copyOfRange(at, at + n)))
at += n
}
}
}
override fun close() {
if (closedByUs) return
closedByUs = true
pipe.end()
if (closedByCar) return
// The car acknowledges with its own CLOSE. onCarClose then unregisters the port.
runCatching { send(frame(port, CLOSE)) }.onFailure { channels.remove(port) }
}
internal fun onCarClose() {
if (!closedByUs) {
closedByCar = true
pipe.end()
runCatching { send(frame(port, CLOSE)) }
}
channels.remove(port)
}
}
private companion object {
const val TAG = "Tunnel"
}
}
/** In-memory byte stream between threads. Reads fail after [timeoutMs] without data. */
internal class Pipe(private val timeoutMs: Long = Long.MAX_VALUE) {
private val queue = LinkedBlockingQueue<ByteArray>()
private var current = ByteArray(0)
private var pos = 0
private var ended = false
fun put(bytes: ByteArray) {
if (bytes.isNotEmpty()) queue.add(bytes)
}
fun end() {
queue.add(END)
}
val input: InputStream = object : InputStream() {
override fun read(): Int {
val b = ByteArray(1)
return if (read(b, 0, 1) < 0) -1 else b[0].toInt() and 0xFF
}
override fun read(b: ByteArray, off: Int, len: Int): Int {
if (len == 0) return 0
while (pos == current.size) {
if (ended) return -1
val next = queue.poll(timeoutMs, TimeUnit.MILLISECONDS)
?: throw SocketTimeoutException("No answer from the car for ${timeoutMs / 1000} s")
ended = next === END
current = next
pos = 0
}
val n = minOf(len, current.size - pos)
current.copyInto(b, off, pos, pos + n)
pos += n
return n
}
override fun close() = end()
}
val output: OutputStream = object : OutputStream() {
override fun write(b: Int) = put(byteArrayOf(b.toByte()))
override fun write(b: ByteArray, off: Int, len: Int) = put(b.copyOfRange(off, off + len))
override fun close() = end()
}
private companion object {
val END = ByteArray(0)
}
}
Aapp/src/main/java/de/upapp/WebSocket.kt
@@ -0,0 +1,133 @@
package de.upapp
import android.util.Log
import org.json.JSONObject
import org.json.JSONTokener
import java.io.ByteArrayOutputStream
import java.io.DataInputStream
import java.io.EOFException
import java.io.IOException
import java.io.InputStream
import java.io.OutputStream
import java.security.MessageDigest
import java.security.SecureRandom
import java.util.Base64
internal const val WS_TEXT = 1
internal const val WS_CLOSE = 8
internal const val WS_PING = 9
internal const val WS_PONG = 10
internal fun wsAccept(key: String): String = Base64.getEncoder().encodeToString(
MessageDigest.getInstance("SHA-1").digest((key + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11").toByteArray())
)
/** Writes one unfragmented frame. Clients must [mask], servers must not. */
internal fun writeFrame(out: OutputStream, opcode: Int, payload: ByteArray, mask: Boolean) = synchronized(out) {
val frame = ByteArrayOutputStream()
frame.write(0x80 or opcode)
val m = if (mask) 0x80 else 0
val n = payload.size
when {
n < 126 -> frame.write(m or n)
n < 0x10000 -> frame.write(byteArrayOf((m or 126).toByte(), (n shr 8).toByte(), n.toByte()))
else -> {
frame.write(m or 127)
for (i in 7 downTo 0) frame.write((n.toLong() shr (8 * i)).toInt())
}
}
if (mask) {
val key = ByteArray(4).also { SecureRandom().nextBytes(it) }
frame.write(key)
frame.write(ByteArray(n) { (payload[it].toInt() xor key[it % 4].toInt()).toByte() })
} else {
frame.write(payload)
}
out.write(frame.toByteArray())
out.flush()
}
/** Reads the next data message. Answers pings. Throws [EOFException] on a close frame. */
internal fun readMessage(input: InputStream, output: OutputStream, mask: Boolean): Pair<Int, ByteArray> {
val inp = DataInputStream(input)
var opcode = 0
val message = ByteArrayOutputStream()
while (true) {
val b0 = inp.readUnsignedByte()
val b1 = inp.readUnsignedByte()
val len = when (val l = b1 and 0x7F) {
126 -> inp.readUnsignedShort()
127 -> inp.readLong().toInt()
else -> l
}
val key = if (b1 and 0x80 != 0) ByteArray(4).also { inp.readFully(it) } else null
val data = ByteArray(len).also { inp.readFully(it) }
key?.let { k -> for (i in data.indices) data[i] = (data[i].toInt() xor k[i % 4].toInt()).toByte() }
when (val op = b0 and 0x0F) {
WS_CLOSE -> {
runCatching { writeFrame(output, WS_CLOSE, data, mask) }
throw EOFException("WebSocket closed")
}
WS_PING -> writeFrame(output, WS_PONG, data, mask)
WS_PONG -> {}
else -> {
if (op != 0) opcode = op
message.write(data)
if (b0 and 0x80 != 0) return opcode to message.toByteArray()
}
}
}
}
/**
* Subscribes to [paths], collections or single elements, and calls [onEvent] with the subscribed path and the event data.
* Blocks until the connection ends, then throws.
*/
fun Car.listen(paths: List<String>, onEvent: (String, Any?) -> Unit) {
// Events can be minutes apart, so this channel has no read timeout.
val ch = tunnel.open(443, Long.MAX_VALUE)
try {
val tls = sessionTls(ch.input, ch.output, psk.first, psk.second)
val key = Base64.getEncoder().encodeToString(ByteArray(16).also { SecureRandom().nextBytes(it) })
val r = exchange(
tls.inputStream, tls.outputStream, "GET", HTTPS_HOST, "/", keepAlive = true,
extraHeaders = listOf("Upgrade: websocket", "Connection: Upgrade", "Sec-WebSocket-Key: $key", "Sec-WebSocket-Version: 13"),
)
if (r.status != 101 || r.headers["sec-websocket-accept"] != wsAccept(key)) throw IOException("WebSocket upgrade failed: HTTP ${r.status}")
// Like maps+more: one subscription at a time. The car answers 409 Conflict to overlapping ones.
val pending = ArrayDeque(paths)
fun subscribeNext() = pending.removeFirstOrNull()?.let {
// Inputs need a short limit. Otherwise the car merges "pushed" and "released" into one event.
val limit = if (it.startsWith("/mechanicalinput/")) 100 else 1000
val subscribe = JSONObject().put("type", "subscribe").put("event", "$it#42").put("updatelimit", limit)
writeFrame(tls.outputStream, WS_TEXT, subscribe.toString().toByteArray(), mask = true)
}
subscribeNext()
while (true) {
val (op, data) = readMessage(tls.inputStream, tls.outputStream, mask = true)
if (op != WS_TEXT) continue
val text = data.decodeToString()
if (BuildConfig.DEBUG) Log.d("Events", text.take(4000))
// The car joins several messages in one frame without a separator.
val messages = JSONTokener(text)
while (true) {
val m = (runCatching { messages.nextValue() }.getOrNull() as? JSONObject) ?: break
val line = m.toString()
val event = m.optString("event").substringBefore('#').substringBefore('?')
when (m.optString("type")) {
"data" -> (paths.firstOrNull { event == it } ?: paths.firstOrNull { event.startsWith(it) })?.let { onEvent(it, m.opt("data")) }
"subscribe" -> {
if (m.optString("status") != "ok") Log.w("Events", "Subscription failed: $line")
subscribeNext()
}
"error" -> {
Log.w("Events", "Event error: $line")
subscribeNext()
}
}
}
}
} finally {
ch.close()
}
}
Aapp/src/main/res/drawable/ic_launcher_foreground.xml
@@ -0,0 +1,9 @@
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path
android:fillColor="#FFFFFF"
android:pathData="M58,30L38,58L52,58L48,78L70,48L56,48Z" />
</vector>
Aapp/src/main/res/mipmap-anydpi/ic_launcher.xml
@@ -0,0 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@color/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
<monochrome android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>
Aapp/src/main/res/values-de/strings.xml
@@ -0,0 +1,132 @@
<resources>
<string name="select_car">Fahrzeug wählen</string>
<string name="select_car_hint">Gekoppelte Bluetooth-Geräte. Kopple das Telefon zuerst in den Systemeinstellungen mit dem Fahrzeug.</string>
<string name="bt_permission">Die App braucht Bluetooth-Zugriff, um mit dem Fahrzeug zu kommunizieren.</string>
<string name="allow_bluetooth">Bluetooth erlauben</string>
<string name="no_devices">Keine gekoppelten Geräte.</string>
<string name="connecting">Verbinde mit %1$s…</string>
<string name="confirm_pin_title">Am Fahrzeugdisplay bestätigen</string>
<string name="confirm_pin_text">Dieses Telefon ist noch nicht im Fahrzeug registriert. Prüfe, ob das Fahrzeugdisplay dieselbe PIN zeigt. Bestätige sie dann im Fahrzeug.</string>
<string name="pin_note">Wenn die PINs abweichen, brich ab. Dann ist eventuell ein anderes Gerät zwischen Telefon und Fahrzeug.</string>
<string name="registration">Registrierung</string>
<string name="registered">Registriert. Schlüssel für %1$s gespeichert.</string>
<string name="connected_vin">Verbunden · %1$s</string>
<string name="refresh">Aktualisieren</string>
<string name="disconnect">Trennen</string>
<string name="tab_overview">Übersicht</string>
<string name="tab_charging">Laden</string>
<string name="tab_console">Konsole</string>
<string name="saved">Gespeichert. Durch erneutes Lesen geprüft.</string>
<string name="error">Fehler: %1$s</string>
<string name="more_info">Mehr Infos</string>
<string name="close">Schließen</string>
<string name="cancel">Abbrechen</string>
<string name="save">Speichern</string>
<string name="ok">OK</string>
<string name="edit">Bearbeiten</string>
<string name="yes">Ja</string>
<string name="no">Nein</string>
<string name="none">Keine</string>
<string name="battery">Batterie</string>
<string name="range">Reichweite</string>
<string name="next_departure">Nächste Abfahrt</string>
<string name="car">Fahrzeug</string>
<string name="vin">FIN</string>
<string name="type">Typ</string>
<string name="car_clock">Fahrzeuguhr</string>
<string name="language">Sprache</string>
<string name="read_only_title">Nur lesen</string>
<string name="read_only">Nur lesen. Einstellungen ändern ist in dieser Version deaktiviert.</string>
<string name="departure_timers">Abfahrtszeiten</string>
<string name="timer_n">Timer %1$d</string>
<string name="weekly">Wöchentlich</string>
<string name="once">Einmalig</string>
<string name="charging_locations">Ladeorte</string>
<string name="charging_location">Ladeort</string>
<string name="charge_to">Laden bis</string>
<string name="max_current">Max. Ladestrom</string>
<string name="options">Optionen</string>
<string name="climate_ext_supply">Klimatisieren mit Batteriestrom</string>
<string name="min_level">Min. Ladestand</string>
<string name="temperature">Temperatur</string>
<string name="offpeak">Bevorzugte Ladezeiten</string>
<string name="op_charge">Batterie laden</string>
<string name="op_climate">Klimatisierung</string>
<string name="name">Name</string>
<string name="departure_time_local">Abfahrtszeit (Ortszeit)</string>
<string name="car_stores_utc">Das Fahrzeug speichert %1$s UTC.</string>
<string name="repeat">Wiederholen</string>
<string name="days">Tage</string>
<string name="date">Datum</string>
<string name="pick_date">Datum wählen</string>
<string name="timer_active">Timer aktiv</string>
<string name="start">Beginn</string>
<string name="end">Ende</string>
<string name="empty_window">Beginn und Ende sind gleich. Die Ladezeit ist aus.</string>
<string name="overnight">Läuft über Mitternacht in den nächsten Tag.</string>
<string name="err_pick_day">Wähle mindestens einen Tag.</string>
<string name="err_name">Gib einen Namen ein.</string>
<string name="err_pick_date">Wähle ein Datum.</string>
<string name="path">Pfad</string>
<string name="json_body">JSON-Body</string>
<string name="post_disabled">POST ist in dieser Version deaktiviert.</string>
<string name="response_hint">Die Antwort erscheint hier.</string>
<string name="info_battery">Ladestand der Hochvoltbatterie in Prozent.</string>
<string name="info_range">Verbleibende elektrische Reichweite, die das Fahrzeug berechnet.\n\nSie hängt von der letzten Fahrweise und der Außentemperatur ab.</string>
<string name="info_next">Der nächste aktive Abfahrtstimer in Ortszeit.\n\nDas Fahrzeug versucht, bis dahin den Ziel-Ladestand und die Innentemperatur zu erreichen.</string>
<string name="info_car">Grunddaten, die das Infotainmentsystem meldet.\n\nDie Fahrzeuguhr ist Datum und Uhrzeit des Infotainmentsystems. Sie kann vom Telefon abweichen.</string>
<string name="info_timers">Das Fahrzeug hat drei Abfahrtstimer. Jeder Timer gehört zu einem Ladeort.\n\nIst ein Timer aktiv, plant das Fahrzeug Laden und Klimatisierung. Beides ist zur Abfahrtszeit fertig.\n\nWöchentliche Timer wiederholen sich an den markierten Tagen. Einmalige Timer laufen einmal an einem festen Datum.</string>
<string name="note_timers_utc">Das Fahrzeug speichert die Zeiten in UTC. Die App zeigt sie in deiner Ortszeit.</string>
<string name="info_profiles">Einstellungen für jeden Ort, an dem du lädst, zum Beispiel Zuhause oder Arbeit.\n\nLaden bis: der Ladestand, bis zu dem das Fahrzeug lädt, wenn ein Timer diesen Ort nutzt.\n\nMax. Ladestrom: der höchste Ladestrom in Ampere. Nutze an schwachen Steckdosen einen niedrigen Wert.\n\n🔌 bedeutet, der Timer lädt die Batterie. ❄️/🔥 bedeutet, der Timer heizt oder kühlt auch den Innenraum.</string>
<string name="info_options">Globale Einstellungen für alle Timer und Ladeorte.</string>
<string name="info_ext_supply">Erlaubt Klimaanlage und Heizung, die Hochvoltbatterie zu nutzen. Ist es aus, läuft die Klimatisierung nur mit Netzstrom bei angeschlossenem Ladekabel.</string>
<string name="info_max_current">Standardwert für den höchsten Ladestrom in Ampere.</string>
<string name="info_min_level" formatted="false">Das Fahrzeug lädt sofort bis zu diesem Ladestand, unabhängig von Timern und Ladezeiten.\n\nBei 100 % lädt das Fahrzeug nach dem Einstecken immer sofort voll.</string>
<string name="info_temperature">Ziel-Innentemperatur für die Klimatisierung zur Abfahrt. LO und HI sind die kleinste und größte Einstellung.</string>
<string name="info_providers">Zeitfenster, in denen Strom günstiger ist, zum Beispiel ein Nachttarif.\n\nDas Fahrzeug lädt bevorzugt in diesen Fenstern, wenn die Abfahrtszeit es zulässt.</string>
<string name="note_offpeak_utc">Das Fahrzeug speichert die Zeiten in UTC. Die App zeigt sie in deiner Ortszeit.</string>
<string name="info_path">Ein REST-Pfad im Fahrzeug, zum Beispiel /car/batteries.\n\nGET liest die Daten und zeigt die rohe JSON-Antwort. Damit kannst du erkunden, was das Fahrzeug anbietet.</string>
<string name="info_post">Sendet den JSON-Body an den Pfad. Das ändert Einstellungen im Fahrzeug.</string>
<string name="note_post">POST ist in dieser Version deaktiviert. Falsche Werte können das Fahrzeug verwirren.</string>
<string name="info_pin">Das Fahrzeug spricht nur mit registrierten Telefonen. Die Registrierung erfolgt einmal pro Fahrzeug.\n\nDas Fahrzeug zeigt eine PIN auf seinem Display. Prüfe, ob die App dieselbe PIN zeigt, und bestätige sie dann im Fahrzeug. Die App erhält dann einen Schlüssel und speichert ihn auf diesem Telefon.</string>
<string name="note_pin">Telefon und Fahrzeug berechnen die PIN aus der verschlüsselten Verbindung. Gleiche PINs beweisen, dass niemand dazwischen sitzt. Die App prüft außerdem das Fahrzeugzertifikat gegen das VW-Stammzertifikat.</string>
<string name="info_read_only">Diese Version liest nur Daten aus dem Fahrzeug.\n\nDer Code zum Ändern von Einstellungen ist vorhanden. Er bleibt deaktiviert, bis wir ihn in einem echten Fahrzeug getestet haben.</string>
<string name="charging_status">Ladestatus</string>
<string name="plug">Stecker</string>
<string name="plugged_in">Eingesteckt</string>
<string name="not_plugged_in">Nicht eingesteckt</string>
<string name="charging_state">Laden</string>
<string name="climate_state">Standklimatisierung</string>
<string name="outside_temperature">Außentemperatur</string>
<string name="state_not_charging">Lädt nicht</string>
<string name="state_charging">Lädt</string>
<string name="state_completed">Abgeschlossen</string>
<string name="state_conserving">Ladeerhaltung</string>
<string name="state_aborted">Abgebrochen</string>
<string name="climate_off">Aus</string>
<string name="state_running">Läuft</string>
<string name="add_location">+ Ladeort hinzufügen</string>
<string name="new_location">Neuer Ladeort</string>
<string name="delete">Löschen</string>
<string name="delete_location_title">%1$s löschen?</string>
<string name="delete_location_text">Das Fahrzeug löscht auch die Ladezeit dieses Ladeorts.</string>
<string name="location_in_use">Ein Timer nutzt diesen Ladeort. Verknüpfe den Timer mit einem anderen Ladeort, um ihn zu löschen.</string>
<string name="demo_car">Demo-Fahrzeug</string>
<string name="demo_car_hint">Teste die App ohne Fahrzeug. Die App sendet nichts an ein Fahrzeug.</string>
<string name="info_status">Live-Zustand des Fahrzeugs. Er aktualisiert sich selbst, solange die App offen ist.\n\nStandklimatisierung ist die Klimafunktion, die Timer und die App starten. Bei eingeschalteter Zündung läuft stattdessen die normale Klimaanlage, daher steht hier aus.\n\nAbgebrochen bedeutet, dass das Fahrzeug Laden oder Klimatisierung vorzeitig beendet hat, zum Beispiel weil die Stromversorgung ausfiel.</string>
<string name="no_charging_data">Das Fahrzeug sendet keine Ladedaten. Schalte die Zündung ein und aktualisiere.</string>
<string name="remaining_time">Restzeit</string>
<string name="climate_ignition_on">Aus, Zündung ist an</string>
<string name="climate_no_supply">Abgebrochen, kein Netzstrom</string>
<string name="climate_battery_low">Abgebrochen, Batterie leer</string>
<string name="offpeak_short">Ladezeit</string>
<string name="off">Aus</string>
<string name="your_cars">Deine Fahrzeuge</string>
<string name="other_devices">Andere gekoppelte Geräte</string>
</resources>
Aapp/src/main/res/values/colors.xml
@@ -0,0 +1,3 @@
<resources>
<color name="ic_launcher_background">#3A6A1E</color>
</resources>
Aapp/src/main/res/values/strings.xml
@@ -0,0 +1,133 @@
<resources>
<string name="app_name" translatable="false">upApp</string>
<string name="select_car">Select your car</string>
<string name="select_car_hint">Paired Bluetooth devices. Pair the phone with the car in the system settings first.</string>
<string name="bt_permission">The app needs Bluetooth access to talk to the car.</string>
<string name="allow_bluetooth">Allow Bluetooth</string>
<string name="no_devices">No paired devices.</string>
<string name="connecting">Connecting to %1$s…</string>
<string name="confirm_pin_title">Confirm on the car display</string>
<string name="confirm_pin_text">This phone is not registered with the car yet. Check that the car display shows the same PIN. Then confirm it on the car.</string>
<string name="pin_note">If the PINs differ, cancel. Another device may be between the phone and the car.</string>
<string name="registration">Registration</string>
<string name="registered">Registered. Key saved for %1$s.</string>
<string name="connected_vin">Connected · %1$s</string>
<string name="refresh">Refresh</string>
<string name="disconnect">Disconnect</string>
<string name="tab_overview">Overview</string>
<string name="tab_charging">Charging</string>
<string name="tab_console">Console</string>
<string name="saved">Saved. Verified by reading it back.</string>
<string name="error">Error: %1$s</string>
<string name="more_info">More info</string>
<string name="close">Close</string>
<string name="cancel">Cancel</string>
<string name="save">Save</string>
<string name="ok">OK</string>
<string name="edit">Edit</string>
<string name="yes">Yes</string>
<string name="no">No</string>
<string name="none">None</string>
<string name="battery">Battery</string>
<string name="range">Range</string>
<string name="next_departure">Next departure</string>
<string name="car">Car</string>
<string name="vin">VIN</string>
<string name="type">Type</string>
<string name="car_clock">Car clock</string>
<string name="language">Language</string>
<string name="read_only_title">Read only</string>
<string name="read_only">Read only. Changing settings is disabled in this version.</string>
<string name="departure_timers">Departure timers</string>
<string name="timer_n">Timer %1$d</string>
<string name="weekly">Weekly</string>
<string name="once">Once</string>
<string name="charging_locations">Charging locations</string>
<string name="charging_location">Charging location</string>
<string name="charge_to">Charge to</string>
<string name="max_current">Max current</string>
<string name="options">Options</string>
<string name="climate_ext_supply">Climate from battery</string>
<string name="min_level">Min. battery level</string>
<string name="temperature">Temperature</string>
<string name="offpeak">Off-peak power times</string>
<string name="op_charge">Charge battery</string>
<string name="op_climate">Climate control</string>
<string name="name">Name</string>
<string name="departure_time_local">Departure time (local)</string>
<string name="car_stores_utc">The car stores %1$s UTC.</string>
<string name="repeat">Repeat</string>
<string name="days">Days</string>
<string name="date">Date</string>
<string name="pick_date">Pick a date</string>
<string name="timer_active">Timer active</string>
<string name="start">Start</string>
<string name="end">End</string>
<string name="empty_window">Start equals end. The off-peak time is off.</string>
<string name="overnight">Runs over midnight into the next day.</string>
<string name="err_pick_day">Pick at least one day.</string>
<string name="err_name">Enter a name.</string>
<string name="err_pick_date">Pick a date.</string>
<string name="path">Path</string>
<string name="json_body">JSON body</string>
<string name="post_disabled">POST is disabled in this version.</string>
<string name="response_hint">The response appears here.</string>
<string name="info_battery">State of charge of the high-voltage battery in percent.</string>
<string name="info_range">Remaining electric range that the car calculates.\n\nIt depends on your recent driving style and the outside temperature.</string>
<string name="info_next">The next active departure timer, in local time.\n\nThe car tries to reach the target charge and cabin temperature by this time.</string>
<string name="info_car">Basic data that the infotainment system reports.\n\nThe car clock is the date and time of the infotainment unit. It can differ from your phone.</string>
<string name="info_timers">The car has three departure timers. Each timer links to one charging location.\n\nWhen a timer is on, the car plans charging and climate control. Both are ready at the departure time.\n\nWeekly timers repeat on the marked days. One-time timers run once on a set date.</string>
<string name="note_timers_utc">The car stores the times in UTC. The app shows them in your local time.</string>
<string name="info_profiles">Settings for each place where you charge, for example home or work.\n\nCharge to: the battery level the car charges to when a timer uses this location.\n\nMax current: the highest charging current in ampere. Use a low value on weak sockets.\n\n🔌 means the timer charges the battery. ❄️/🔥 means the timer also heats or cools the cabin.</string>
<string name="info_options">Global settings for all timers and locations.</string>
<string name="info_ext_supply">Allows air conditioning and heating to use the high-voltage battery. When off, climate control runs only on mains power while the car is plugged in.</string>
<string name="info_max_current">Default highest charging current in ampere.</string>
<string name="info_min_level" formatted="false">The car charges immediately up to this level, regardless of timers and off-peak times.\n\nAt 100 %, the car always charges fully right after you plug in.</string>
<string name="info_temperature">Target cabin temperature for climate control at departure. LO and HI are the minimum and maximum settings.</string>
<string name="info_providers">Time windows when electricity is cheaper, for example a night tariff.\n\nThe car prefers these windows for charging if the departure time still allows it.</string>
<string name="note_offpeak_utc">The car stores the times in UTC. The app shows them in your local time.</string>
<string name="info_path">A REST path on the car, for example /car/batteries.\n\nGET reads the data and shows the raw JSON answer. Use it to explore what the car offers.</string>
<string name="info_post">Sends the JSON body to the path. This changes settings in the car.</string>
<string name="note_post">POST is disabled in this version. Wrong values can confuse the car.</string>
<string name="info_pin">The car only talks to registered phones. Registration happens once per car.\n\nThe car shows a PIN on its display. Check that the app shows the same PIN. Then confirm it on the car. The app then receives a key and stores it on this phone.</string>
<string name="note_pin">The phone and the car calculate the PIN from the encrypted connection. Equal PINs prove that nobody sits in between. The app also checks the car certificate against the VW root certificate.</string>
<string name="info_read_only">This version only reads data from the car.\n\nThe code to change settings exists. It stays disabled until we test it in a real car.</string>
<string name="charging_status">Charging status</string>
<string name="plug">Plug</string>
<string name="plugged_in">Plugged in</string>
<string name="not_plugged_in">Not plugged in</string>
<string name="charging_state">Charging</string>
<string name="climate_state">Parked climate control</string>
<string name="outside_temperature">Outside temperature</string>
<string name="state_not_charging">Not charging</string>
<string name="state_charging">Charging</string>
<string name="state_completed">Completed</string>
<string name="state_conserving">Maintaining charge</string>
<string name="state_aborted">Stopped</string>
<string name="climate_off">Off</string>
<string name="state_running">Running</string>
<string name="add_location">+ Add charging location</string>
<string name="new_location">New charging location</string>
<string name="delete">Delete</string>
<string name="delete_location_title">Delete %1$s?</string>
<string name="delete_location_text">The car also deletes the off-peak time of this location.</string>
<string name="location_in_use">A timer uses this location. Link the timer to another location to delete it.</string>
<string name="demo_car">Demo car</string>
<string name="demo_car_hint">Try the app without a car. The app sends nothing to a car.</string>
<string name="info_status">Live state from the car. It updates by itself while the app is open.\n\nParked climate control is the climate function that timers and the app start. While the ignition is on, the normal climate control runs instead, so this shows off.\n\nStopped means the car ended charging or climate control early, for example because the power supply failed.</string>
<string name="no_charging_data">The car sends no charging data. Switch the ignition on and refresh.</string>
<string name="remaining_time">Time left</string>
<string name="climate_ignition_on">Off, ignition is on</string>
<string name="climate_no_supply">Stopped, no mains power</string>
<string name="climate_battery_low">Stopped, battery low</string>
<string name="offpeak_short">Off-peak time</string>
<string name="off">Off</string>
<string name="your_cars">Your cars</string>
<string name="other_devices">Other paired devices</string>
</resources>
Aapp/src/main/res/xml/data_extraction_rules.xml
@@ -0,0 +1,10 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- The stored car keys must not leave the phone. -->
<data-extraction-rules>
<cloud-backup>
<exclude domain="sharedpref" path="credentials.xml" />
</cloud-backup>
<device-transfer>
<exclude domain="sharedpref" path="credentials.xml" />
</device-transfer>
</data-extraction-rules>
Aapp/src/test/java/de/upapp/DemoTest.kt
@@ -0,0 +1,63 @@
package de.upapp
import android.content.SharedPreferences
import org.junit.Assert.assertEquals
import org.junit.Assert.assertThrows
import org.junit.Test
import java.lang.reflect.Proxy
import java.util.concurrent.CountDownLatch
import java.util.concurrent.TimeUnit
import kotlin.concurrent.thread
/** Preferences that return [credentials] for every VIN. */
fun storedCredentials(credentials: String) =
Proxy.newProxyInstance(SharedPreferences::class.java.classLoader, arrayOf(SharedPreferences::class.java)) { _, m, _ ->
if (m.name == "getString") credentials else null
} as SharedPreferences
class DemoTest {
private val car = Car(DemoCar().tunnel, storedCredentials(DEMO_CREDENTIALS)).apply { connect {} }
@Test
fun readsAllData() {
assertEquals(DEMO_VIN, car.vin)
assertEquals(64.0, car.battery().soc!!, 1.0)
assertEquals(Status("running", "plugged", "idle", 12.5, "celsius"), car.status().copy(charge = "running"))
val cm = car.chargingManager()
assertEquals(listOf("Zuhause", "Arbeit"), cm.profiles.map { it.name })
assertEquals(3, cm.timers.size)
assertEquals(2, cm.providers.size)
}
@Test
fun createsAndDeletesLocations() {
car.create(newProfile(car.vin).copy(name = "Oma"))
val added = car.chargingManager().profiles.single { it.name == "Oma" }
assertEquals(3, car.chargingManager().providers.size)
car.delete(added)
assertEquals(listOf("Zuhause", "Arbeit"), car.chargingManager().profiles.map { it.name })
assertEquals(2, car.chargingManager().providers.size)
val used = car.chargingManager().profiles.first()
assertThrows(IllegalArgumentException::class.java) { car.delete(used) }
}
@Test
fun writesTimerAndPushesEvent() {
val changed = CountDownLatch(1)
thread(isDaemon = true) { runCatching { car.listen(listOf("/chargingmanager/timers/")) { _, _ -> changed.countDown() } } }
val cm = car.chargingManager()
val timer = cm.timers.first()
val work = cm.profiles.last()
var on = timer.active
// Writes until the event connection is up and reports a change.
repeat(25) {
on = !on
car.write(timer.copy(state = if (on) TIMER_ON else TIMER_OFF, profileId = work.id))
if (changed.await(200, TimeUnit.MILLISECONDS)) return@repeat
}
assertEquals(0, changed.count)
val stored = car.chargingManager().timers.first()
assertEquals(work.id, stored.profileId)
assertEquals(on, stored.active)
}
}
Aapp/src/test/java/de/upapp/ModelTest.kt
@@ -0,0 +1,116 @@
package de.upapp
import org.json.JSONObject
import org.junit.Assert.assertEquals
import org.junit.Assert.assertFalse
import org.junit.Assert.assertNull
import org.junit.Assert.assertTrue
import org.junit.Test
import java.time.DayOfWeek.FRIDAY
import java.time.DayOfWeek.MONDAY
import java.time.DayOfWeek.SUNDAY
import java.time.DayOfWeek.THURSDAY
import java.time.DayOfWeek.TUESDAY
import java.time.LocalDate
import java.time.LocalTime
import java.time.ZoneId
import java.time.ZonedDateTime
// Fixtures from the upXlink test suite.
class ModelTest {
private val timer = parseTimer(JSONObject("""
{"id": "20a560c1", "name": "Timer1", "uri": "/chargingmanager/timers/20a560c1", "state": "idle",
"departureTime": "06:35:00", "profile": {"id": "63cf948c", "name": "Ladelimit 80, HVAC", "uri": "/x"},
"cyclic": true, "weekdays": ["monday", "tuesday", "thursday", "friday"]}
"""))
@Test
fun parsesTimer() {
assertEquals(1, timer.index)
assertFalse(timer.active)
assertEquals(setOf(MONDAY, TUESDAY, THURSDAY, FRIDAY), timer.weekdays)
assertEquals(LocalTime.of(6, 35), timer.departureTime)
assertNull(timer.departureDate)
assertEquals("63cf948c", timer.profileId)
}
@Test
fun parsesProfilesAndOptions() {
val p = parseProfile(JSONObject("""
{"id": "8269b474", "name": "Ladeort 3", "uri": "/p/8269b474", "operations": ["charge", "climate"], "maxCurrent": 16,
"minLevel": 0, "targetLevel": 100, "temperature": 10.0, "powerProvider": {"id": "c8876782", "name": "", "uri": "/x"}}
"""))
assertEquals(Profile("8269b474", "/p/8269b474", "Ladeort 3", 100, 16, listOf("charge", "climate"), "c8876782"), p)
val o = parseOptions(JSONObject("""
{"id": "3900b210", "name": "Optionen", "uri": "/p/3900b210", "operations": ["climateExtSupply", "climate"],
"maxCurrent": 32, "minLevel": 100, "targetLevel": 0, "temperature": 30.0}
"""))
assertTrue(o.climateExtSupply)
assertEquals(100, o.minLevel)
assertEquals(30.0, o.temperature, 0.0)
}
@Test
fun parsesProviderAndCarData() {
val p = parseProvider(JSONObject("""
{"id": "c8876782", "uri": "/pr/c8876782", "cyclic": false, "preferredTimeStart": "22:00:00", "preferredTimeEnd": "05:00:00",
"weekdays": ["monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"]}
"""))
assertEquals(7, p.weekdays.size)
assertEquals(LocalTime.of(22, 0), p.start)
assertEquals(84.0, parseBattery(JSONObject("""{"name": "BEV battery", "soc": 84.0}""")).soc!!, 0.0)
assertNull(parseBattery(JSONObject("""{"soc": ""}""")).soc)
assertEquals("MATSRSECBFQTIXLFYF", parseInfo(JSONObject("""{"vehicleIdenticationNumber": "MATSRSECBFQTIXLFYF"}""")).vin)
assertEquals(LocalDate.of(2025, 11, 1), parseTimer(JSONObject(
"""{"id": "a", "name": "Timer2", "uri": "/t", "state": "scheduled", "departureTime": "07:00:00", "departureDate": "01 Nov 2025"}"""
)).departureDate)
}
@Test
fun shiftsOnlyTheTime() {
val late = timer.copy(departureTime = LocalTime.of(23, 30), weekdays = setOf(FRIDAY, SUNDAY), departureDate = LocalDate.of(2025, 12, 31))
val local = late.shifted(2 * 3600)
assertEquals(LocalTime.of(1, 30), local.departureTime)
assertEquals(late.weekdays, local.weekdays)
assertEquals(late.departureDate, local.departureDate)
assertEquals(late, local.shifted(-2 * 3600))
}
@Test
fun allows32AmpsOnlyForEUp300() {
assertEquals(16, maxCurrents("WVWZZZAAZKD000001").last())
assertEquals(32, maxCurrents("WVWZZZAAZLD000001").last())
assertEquals(32, maxCurrents("TMBZZZAAZKD000001").last())
}
@Test
fun findsNextDeparture() {
val berlin = ZoneId.of("Europe/Berlin")
// Wednesday 2025-11-12 12:00. Timer runs Mon, Tue, Thu, Fri at 06:35.
val now = ZonedDateTime.of(2025, 11, 12, 12, 0, 0, 0, berlin)
assertNull(nextDeparture(listOf(timer), now))
val (_, at) = nextDeparture(listOf(timer.copy(state = TIMER_ON)), now)!!
assertEquals(ZonedDateTime.of(2025, 11, 13, 6, 35, 0, 0, berlin), at)
}
@Test
fun pairsUnlinkedProvidersByPosition() {
fun profile(id: String) = JSONObject("""{"id": "$id", "uri": "/p/$id", "name": "$id", "operations": [], "maxCurrent": 16, "minLevel": 0, "targetLevel": 80, "temperature": 21.0}""")
fun provider(id: String) = JSONObject("""{"id": "$id", "uri": "/pr/$id", "cyclic": false, "preferredTimeStart": "00:00:00", "preferredTimeEnd": "00:00:00"}""")
val cm = chargingManagerOf(listOf(profile("options"), profile("home")), emptyList(), listOf(provider("a"), provider("b")))
assertEquals("a", cm.options!!.providerId)
assertEquals("b", cm.profiles.single().providerId)
assertNull(chargingManagerOf(listOf(profile("options"), profile("home")), emptyList(), listOf(provider("a"))).profiles.single().providerId)
}
@Test
fun matchesIgnoresExtraKeysAndNumberTypes() {
val actual = JSONObject("""{"temperature": 24, "profile": {"id": "a", "name": "Home"}, "weekdays": ["monday"]}""")
assertTrue(matches(JSONObject("""{"temperature": 24.0, "profile": {"id": "a"}, "weekdays": ["monday"]}"""), actual))
assertFalse(matches(JSONObject("""{"temperature": 25.0}"""), actual))
assertFalse(matches(JSONObject("""{"weekdays": ["monday", "friday"]}"""), actual))
assertTrue(matches(JSONObject("""{"profile": "a"}"""), actual))
assertFalse(matches(JSONObject("""{"profile": "b"}"""), actual))
}
}
Aapp/src/test/java/de/upapp/ProtocolTest.kt
@@ -0,0 +1,181 @@
package de.upapp
import org.bouncycastle.asn1.x500.X500Name
import org.bouncycastle.asn1.x509.BasicConstraints
import org.bouncycastle.asn1.x509.Extension
import org.bouncycastle.cert.jcajce.JcaX509CertificateConverter
import org.bouncycastle.cert.jcajce.JcaX509v3CertificateBuilder
import org.bouncycastle.crypto.util.PrivateKeyFactory
import org.bouncycastle.operator.jcajce.JcaContentSignerBuilder
import org.bouncycastle.tls.Certificate
import org.bouncycastle.tls.CipherSuite
import org.bouncycastle.tls.DefaultTlsServer
import org.bouncycastle.tls.HashAlgorithm
import org.bouncycastle.tls.SignatureAlgorithm
import org.bouncycastle.tls.SignatureAndHashAlgorithm
import org.bouncycastle.tls.TlsContext
import org.bouncycastle.tls.crypto.TlsCryptoParameters
import org.bouncycastle.tls.crypto.impl.bc.BcDefaultTlsCredentialedSigner
import org.bouncycastle.tls.PSKTlsServer
import org.bouncycastle.tls.TlsPSKIdentityManager
import org.bouncycastle.tls.TlsServerProtocol
import org.bouncycastle.tls.crypto.impl.bc.BcTlsCrypto
import org.junit.Assert.assertArrayEquals
import org.junit.Assert.assertEquals
import org.junit.Assert.assertNull
import org.junit.Assert.assertThrows
import org.junit.Test
import java.io.IOException
import java.io.InputStream
import java.io.OutputStream
import java.math.BigInteger
import java.security.KeyPairGenerator
import java.security.SecureRandom
import java.security.cert.X509Certificate
import java.util.Date
class ProtocolTest {
@Test
fun decodesSegments() {
assertNull(decode(frame(7, TRANSMIT, u16(3) + byteArrayOf(1, 2))))
val (s, size) = decode(frame(0xC0E1, TRANSMIT, u16(2) + byteArrayOf(1, 2)) + frame(0, HEARTBEAT))!!
assertEquals(0xC0E1, s.port)
assertArrayEquals(byteArrayOf(1, 2), s.data)
assertEquals(7, size)
// Example from the MIBBridge protocol notes: OPEN from port 0xC0E1 to port 80.
assertArrayEquals(byteArrayOf(0xE1.toByte(), 0xC0.toByte(), 1, 0x50, 0), frame(0xC0E1, OPEN, u16(80)))
}
@Test
fun plainHttpWithChunkedBody() {
val tunnel = fakeCar { _, input, output ->
input.readHead()
output.write("HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n3\r\nWVW\r\n2\r\nZZ\r\n0\r\n\r\n".toByteArray())
}
val r = tunnel.open(80).use { exchange(it.input, it.output, "GET", "h", "/car/info/vin") }
assertEquals(200, r.status)
assertEquals("WVWZZ", r.text)
}
@Test
fun pskSessionMatchesCarCipher() {
val tunnel = fakeCar { _, input, output ->
val tls = TlsServerProtocol(input, output)
tls.accept(object : PSKTlsServer(BcTlsCrypto(SecureRandom()), object : TlsPSKIdentityManager {
override fun getHint(): ByteArray? = null
override fun getPSK(identity: ByteArray) = if (identity.decodeToString() == "user") "secret".toByteArray() else null
}) {
override fun getSupportedCipherSuites() = intArrayOf(CipherSuite.TLS_PSK_WITH_AES_128_CBC_SHA256)
})
val head = tls.inputStream.readHead()!!
val body = """{"data": [], "request": "${head.lines().first()}"}"""
tls.outputStream.write("HTTP/1.1 200 OK\r\nContent-Length: ${body.length}\r\n\r\n$body".toByteArray())
tls.close()
}
val r = tunnel.open(443).use { ch ->
val tls = sessionTls(ch.input, ch.output, "user", "secret")
exchange(tls.inputStream, tls.outputStream, "GET", "h", "/car/batteries").also { runCatching { tls.close() } }
}
assertEquals("""{"data": [], "request": "GET /car/batteries HTTP/1.1"}""", r.text)
}
@Test
fun pinMatchesMapsAndMore() {
// Computed with the maps+more algorithm in Python.
assertEquals("304163", pin(ByteArray(16) { it.toByte() }, ByteArray(16) { (it + 16).toByte() }))
}
@Test
fun registrationChecksCertificateAndAgreesOnPin() {
val ca = TestCa()
var serverPin = ""
val tunnel = fakeCar { _, input, output ->
val tls = TlsServerProtocol(input, output)
tls.accept(object : DefaultTlsServer(BcTlsCrypto(SecureRandom())) {
override fun getSupportedCipherSuites() = intArrayOf(CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256)
override fun getRSASignerCredentials() = ca.signer(context, crypto as BcTlsCrypto)
override fun notifyHandshakeComplete() {
super.notifyHandshakeComplete()
serverPin = registrationPin(context)
}
})
tls.inputStream.readHead()
tls.outputStream.write("HTTP/1.1 200 OK\r\nContent-Length: 9\r\n\r\nuser,pass".toByteArray())
tls.close()
}
val r = tunnel.open(443).use { ch ->
val (tls, pin) = registrationTls(ch.input, ch.output, ca.root)
assertEquals(serverPin, pin)
assertEquals(6, pin.length)
exchange(tls.inputStream, tls.outputStream, "GET", "h", "/auth/x").also { runCatching { tls.close() } }
}
assertEquals("user,pass", r.text)
val stranger = TestCa()
val ch = tunnel.open(443)
assertThrows(IOException::class.java) { registrationTls(ch.input, ch.output, stranger.root) }
}
/** A root CA and a server certificate signed by it. The server certificate expired an hour ago. */
private class TestCa {
private val gen = KeyPairGenerator.getInstance("RSA").apply { initialize(2048) }
private val rootKey = gen.generateKeyPair()
private val leafKey = gen.generateKeyPair()
private val now = System.currentTimeMillis()
val root = cert("CN=Test CA", rootKey.public, true, now - 86_400_000, now + 86_400_000)
private val leaf = cert("CN=Car", leafKey.public, false, now - 7_200_000, now - 3_600_000)
private fun cert(subject: String, key: java.security.PublicKey, ca: Boolean, from: Long, to: Long): X509Certificate {
val builder = JcaX509v3CertificateBuilder(X500Name("CN=Test CA"), BigInteger.valueOf(from), Date(from), Date(to), X500Name(subject), key)
.addExtension(Extension.basicConstraints, true, BasicConstraints(ca))
return JcaX509CertificateConverter().getCertificate(builder.build(JcaContentSignerBuilder("SHA256withRSA").build(rootKey.private)))
}
fun signer(context: TlsContext, crypto: BcTlsCrypto) = BcDefaultTlsCredentialedSigner(
TlsCryptoParameters(context), crypto, PrivateKeyFactory.createKey(leafKey.private.encoded),
Certificate(arrayOf(crypto.createCertificate(leaf.encoded), crypto.createCertificate(root.encoded))),
SignatureAndHashAlgorithm(HashAlgorithm.sha256, SignatureAlgorithm.rsa),
)
}
@Test
fun reusesSessionAndRetriesAfterCarCloses() {
var connections = 0
val tunnel = fakeCar { port, input, output ->
if (port == 80) {
input.readHead()
output.write("HTTP/1.1 200 OK\r\nContent-Length: 3\r\n\r\nVIN".toByteArray())
return@fakeCar
}
val n = ++connections
val tls = TlsServerProtocol(input, output)
tls.accept(object : PSKTlsServer(BcTlsCrypto(SecureRandom()), object : TlsPSKIdentityManager {
override fun getHint(): ByteArray? = null
override fun getPSK(identity: ByteArray) = "secret".toByteArray()
}) {
override fun getSupportedCipherSuites() = intArrayOf(CipherSuite.TLS_PSK_WITH_AES_128_CBC_SHA256)
})
// The car closes after three requests without notice.
repeat(3) {
val path = tls.inputStream.readHead()?.lines()?.first()?.split(' ')?.get(1) ?: return@repeat
val body = "$n $path"
tls.outputStream.write("HTTP/1.1 200 OK\r\nContent-Length: ${body.length}\r\n\r\n$body".toByteArray())
}
tls.close()
}
val car = Car(tunnel, storedCredentials("user,secret"))
car.connect {}
assertEquals("1 /a", car.get("a"))
assertEquals("1 /b", car.get("b"))
assertEquals("2 /c", car.get("c"))
assertEquals(2, connections)
}
private fun InputStream.readHead(): String? {
val sb = StringBuilder()
while (!sb.endsWith("\r\n\r\n")) sb.append(read().takeIf { it >= 0 }?.toChar() ?: return null)
return sb.toString()
}
private fun fakeCar(serve: (port: Int, InputStream, OutputStream) -> Unit) = CarSide(serve).tunnel
}
Abuild.gradle.kts
@@ -0,0 +1,4 @@
plugins {
id("com.android.application") version "9.4.1" apply false
id("org.jetbrains.kotlin.plugin.compose") version "2.4.20" apply false
}
Adocs/maps-and-more.md
@@ -0,0 +1,108 @@
# Findings from the maps+more app
Source: `de.volkswagen.mapsandmore`, decompiled with jadx 1.5.6.
The car protocol lives in `de.vwag.viwi.*`. The app layer lives in `vwg.vw.prerelease.app4entry.*`.
TLS runs on wolfSSL through JNI.
## Bluetooth
- `createRfcommSocketToServiceRecord(3728ED40-E416-11E4-80A0-0002A5D5C51B)`. Secure socket, bonded devices only.
- 4 attempts with 2, 4, 6, 8 s back-off (`SPPConnectThread`).
## Tunnel (`proxy/SPPConnection`)
- Same framing as MIBBridge: `port u16le | type u8`. DATA 0, CONNECT 1, CLOSE 2, HEARTBEAT 3.
- The app sends a heartbeat (`00 00 03`) every 5 s. It does not echo heartbeats.
- It drops the link after 15 s without heartbeats from the car.
- The virtual port is any unique u16.
## Registration (`ViwiRegistrationProcess`)
1. `GET /car/info/vin` on port 80 with `Connection: close`.
2. `POST /auth/registration` without a body. Expects 303 and `content-location`.
3. TLS 1.2 `ECDHE-RSA-AES128-GCM-SHA256` on port 443, then `GET <content-location>`. The body is `username,password`.
The app verifies the car certificate against a bundled root CA (`TlsSocket.ROOT_CA`, `SSL_VERIFY_PEER`):
- `CN=ViWi Certificate Authority, OU=EECF/1, O=Volkswagen GmbH Deutschland, L=Wolfsburg, ST=Niedersachsen, C=DE`
- Valid 2015-02-24 to 2055-02-14.
- SHA-256 `E7:03:40:9C:26:FB:B7:3F:57:9C:EE:6E:0C:3E:63:D1:E5:1C:E5:29:E2:66:7A:57:F1:E6:95:CA:4B:78:F7:66`
PIN (`computePin`), from the registration handshake key block:
```
digest = SHA-256(client_write_key || server_write_key) # 16 bytes each
t = little-endian uint32 of digest[0..4]
pin = t mod 1000000, left-padded to 6 digits
```
## Session
- TLS 1.2 `PSK-AES128-CBC-SHA256`. Identity = username. Key = UTF-8 bytes of the password.
- The car sends the VIN as the PSK identity hint.
- maps+more keeps one HTTP connection open. upApp does the same and reconnects once if the car closed it.
## HTTP
- Paths have one leading and one trailing slash, for example `/chargingmanager/profiles/`.
- No custom headers. POST bodies are `text/plain; charset=UTF-8`.
- Bluetooth mode uses `127.0.0.1:4080` and `127.0.0.1:4443` as hosts.
## Charging manager writes
All writes are POSTs to the element `uri`. Updates send only the changed fields.
- Timer: `{"departureDate", "departureTime", "profile": "<profile id>", "cyclic", "weekdays"}`. State alone: `{"state": "scheduled" | "idle"}`.
- Profile: changed fields of `name, operations, maxCurrent, targetLevel, powerProvider, temperature, minLevel`.
Create: `POST /chargingmanager/profiles/`. Delete: `DELETE <uri>`.
- Provider: `{"weekdays", "preferredTimeStart", "preferredTimeEnd"}`.
- Timer and provider times are UTC `HH:mm:ss`. Only the time moves. Weekdays and dates are not shifted.
- `climateExtSupply` in the first profile: "Allow AC and heating from battery" / "Klimatisieren mit Batteriestrom".
- maxCurrent: 5, 10, 13, 16. 32 only for the e-up! 300: VIN not `WVW`, or VIN[9] >= `L`.
- Temperature: 15.5 to 30.0 °C in 0.5 steps.
- Names: must not be empty. The app has no length limit.
## Other endpoints
- `/car/{info,batteries,ranges,engines,consumptions,distances,drivingstates,environments,gearboxes}/`
- `/chargingmanager/{profiles,timers,providers,batteryCharges,batteryClimates,batteryPlugs}/`
- `/media/collections/`, `/media/renderers/`, `/medialibrary/sources/`, `/mixer/audiosources/`, `/mixer/positioners`
- WebSocket `wss://host/` over the PSK session. Subscribe with
`{"type":"subscribe","event":"<path>[?fields=a,b]#<sessionId>","interval":n,"updatelimit":n}`.
Server frames have `type` subscribe, unsubscribe or data.
## Car test, 2026-10-07 (e-up! 2020, MIB2 Entry, Pixel 8a with Android 17)
- Bluetooth by service UUID, registration, PIN, certificate check and PSK session work.
- The car certificate is `CN=MIB2 Entry ViWi Server`, valid 2015-02-24 to 2055-02-14.
- Without ignition, all car values are empty strings and the profile and provider lists are empty. Timers are placeholders with empty fields.
- With ignition on, all data arrives. `batteryCharges` also has `mode` (for example `DC`), `remainingTime` (minutes), `targetSOC`, `isActive`.
- `batteryClimates.state` is `abortedIgnitionOn` while the ignition is on.
- Normal profiles can contain `climateExtSupply`. The options profile contains `charge`.
- Profiles have no `powerProvider` link on this car. There is one provider per profile, without a visible link.
- WebSocket: the car puts several JSON messages into one frame without a separator. `data` is a JSON array, not a string.
- WebSocket: subscriptions must be sent one at a time. Overlapping ones get `409 Conflict`.
- Element GETs are wrapped too: `{"status": "ok", "data": {...}}`. POST answers `{"status": "ok"}`.
- Writing a timer `state` (`scheduled` / `idle`) works and the car sends a timer event.
### Infotainment keys (`/mechanicalinput/`)
Subscribe to each element with `updatelimit` 100. With a higher limit the car merges `pushed` and `released`.
| Key | `meaning` |
|---|---|
| RADIO | `radio` |
| MEDIA | `media` |
| PHONE | `phone` |
| Soft key with flag icon | `navigation` |
| Soft key with gauge icon | `thinkBlueTrainer` |
| Soft key with car icon | `car` |
| Soft key with battery icon | `energyflow` |
| Soft key with search icon | `search` |
| MENU, X | no event |
The car also lists `gauges`, which has no key on this car.
`Right Rotary Encoder` (the right knob) sends `ticks` +1/-1 per click and `pushed`/`released`. `Left Rotary Encoder` (volume) was not tested.
- Off-peak times: maps+more has no off switch, only start and end. Start = end means off. The car uses `00:00:00`–`00:00:00` UTC for unset entries.
- The off-peak entry at the position of the options profile answers `403 Forbidden` to POST. Only the location entries are writable.
- Writing provider `weekdays`, profile create and DELETE work on the car.
Agradle.properties
@@ -0,0 +1,2 @@
org.gradle.jvmargs=-Xmx3g -Dfile.encoding=UTF-8
android.useAndroidX=true
Agradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,7 @@
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-9.8.0-bin.zip
networkTimeout=10000
validateDistributionUrl=true
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
Agradlew
@@ -0,0 +1,248 @@
#!/bin/sh
#
# Copyright © 2015 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.
#
# SPDX-License-Identifier: Apache-2.0
#
##############################################################################
#
# 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/platforms/jvm/plugins-application/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##*/}
# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || 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 "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac
# Determine the Java command to use to start the JVM.
if [ -n "$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 $MAX_FD in #(
max*)
# In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
# shellcheck disable=SC2039,SC3045
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
# In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
# shellcheck disable=SC2039,SC3045
ulimit -n "$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 "$APP_HOME" )
JAVACMD=$( 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 optsEnvironmentVar are not allowed to contain shell fragments,
# and any embedded shellness will be escaped.
# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
# treated as '${Hostname}' itself on the command line.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
"$@"
# Stop when "xargs" is not available.
if ! command -v xargs >/dev/null 2>&1
then
die "xargs is not available"
fi
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$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 "$JAVACMD" "$@"
Agradlew.bat
@@ -0,0 +1,93 @@
@rem^M
@rem Copyright 2015 the original author or authors.^M
@rem^M
@rem Licensed under the Apache License, Version 2.0 (the "License");^M
@rem you may not use this file except in compliance with the License.^M
@rem You may obtain a copy of the License at^M
@rem^M
@rem https://www.apache.org/licenses/LICENSE-2.0^M
@rem^M
@rem Unless required by applicable law or agreed to in writing, software^M
@rem distributed under the License is distributed on an "AS IS" BASIS,^M
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.^M
@rem See the License for the specific language governing permissions and^M
@rem limitations under the License.^M
@rem^M
@rem SPDX-License-Identifier: Apache-2.0^M
@rem^M
^M
@if "%DEBUG%"=="" @echo off^M
@rem ##########################################################################^M
@rem^M
@rem Gradle startup script for Windows^M
@rem^M
@rem ##########################################################################^M
^M
@rem Set local scope for the variables with windows NT shell^M
if "%OS%"=="Windows_NT" setlocal^M
^M
set DIRNAME=%~dp0^M
if "%DIRNAME%"=="" set DIRNAME=.^M
@rem This is normally unused^M
set APP_BASE_NAME=%~n0^M
set APP_HOME=%DIRNAME%^M
^M
@rem Resolve any "." and ".." in APP_HOME to make it shorter.^M
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi^M
^M
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.^M
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"^M
^M
@rem Find java.exe^M
if defined JAVA_HOME goto findJavaFromJavaHome^M
^M
set JAVA_EXE=java.exe^M
%JAVA_EXE% -version >NUL 2>&1^M
if %ERRORLEVEL% equ 0 goto execute^M
^M
echo. 1>&2^M
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2^M
echo. 1>&2^M
echo Please set the JAVA_HOME variable in your environment to match the 1>&2^M
echo location of your Java installation. 1>&2^M
^M
goto fail^M
^M
:findJavaFromJavaHome^M
set JAVA_HOME=%JAVA_HOME:"=%^M
set JAVA_EXE=%JAVA_HOME%/bin/java.exe^M
^M
if exist "%JAVA_EXE%" goto execute^M
^M
echo. 1>&2^M
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2^M
echo. 1>&2^M
echo Please set the JAVA_HOME variable in your environment to match the 1>&2^M
echo location of your Java installation. 1>&2^M
^M
goto fail^M
^M
:execute^M
@rem Setup the command line^M
^M
^M
^M
@rem Execute Gradle^M
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*^M
^M
:end^M
@rem End local scope for the variables with windows NT shell^M
if %ERRORLEVEL% equ 0 goto mainEnd^M
^M
:fail^M
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of^M
rem the _cmd.exe /c_ return code!^M
set EXIT_CODE=%ERRORLEVEL%^M
if %EXIT_CODE% equ 0 set EXIT_CODE=1^M
if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%^M
exit /b %EXIT_CODE%^M
^M
:mainEnd^M
if "%OS%"=="Windows_NT" endlocal^M
^M
:omega^M
Asettings.gradle.kts
@@ -0,0 +1,16 @@
pluginManagement {
repositories {
google()
mavenCentral()
gradlePluginPortal()
}
}
dependencyResolutionManagement {
repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
repositories {
google()
mavenCentral()
}
}
rootProject.name = "upApp"
include(":app")