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tailscale-android/android/src/main/java/com/tailscale/ipn/IPNService.kt

131 lines
4.8 KiB
Kotlin

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package com.tailscale.ipn
import android.app.PendingIntent
import android.content.Intent
import android.content.pm.PackageManager
import android.net.VpnService
import android.os.Build
import android.system.OsConstants
import androidx.core.app.NotificationCompat
import androidx.core.app.NotificationManagerCompat
import libtailscale.Libtailscale
import java.util.UUID
open class IPNService : VpnService(), libtailscale.IPNService {
private val randomID: String = UUID.randomUUID().toString()
override fun id(): String {
return randomID
}
override fun onStartCommand(intent: Intent, flags: Int, startId: Int): Int {
if (intent != null && ACTION_STOP_VPN == intent.getAction()) {
(getApplicationContext() as App).autoConnect = false
close()
return START_NOT_STICKY
}
val app = getApplicationContext() as App
if (intent != null && "android.net.VpnService" == intent.getAction()) {
// Start VPN and connect to it due to Always-on VPN
val i = Intent(IPNReceiver.INTENT_CONNECT_VPN)
i.setPackage(getPackageName())
i.setClass(getApplicationContext(), IPNReceiver::class.java)
sendBroadcast(i)
Libtailscale.requestVPN(this)
app.setWantRunning(true)
return START_STICKY
}
Libtailscale.requestVPN(this)
if (app.vpnReady && app.autoConnect) {
app.setWantRunning(true);
}
return START_STICKY
}
private fun close() {
stopForeground(true)
Libtailscale.serviceDisconnect(this)
}
override fun onDestroy() {
close()
super.onDestroy()
}
override fun onRevoke() {
close()
super.onRevoke()
}
private fun configIntent(): PendingIntent {
return PendingIntent.getActivity(this, 0, Intent(this, IPNActivity::class.java),
PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE)
}
private fun disallowApp(b: Builder, name: String) {
try {
b.addDisallowedApplication(name)
} catch (e: PackageManager.NameNotFoundException) {
}
}
override fun newBuilder(): VPNServiceBuilder {
val b: Builder = Builder()
.setConfigureIntent(configIntent())
.allowFamily(OsConstants.AF_INET)
.allowFamily(OsConstants.AF_INET6)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) b.setMetered(false) // Inherit the metered status from the underlying networks.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) b.setUnderlyingNetworks(null) // Use all available networks.
// RCS/Jibe https://github.com/tailscale/tailscale/issues/2322
disallowApp(b, "com.google.android.apps.messaging")
// Stadia https://github.com/tailscale/tailscale/issues/3460
disallowApp(b, "com.google.stadia.android")
// Android Auto https://github.com/tailscale/tailscale/issues/3828
disallowApp(b, "com.google.android.projection.gearhead")
// GoPro https://github.com/tailscale/tailscale/issues/2554
disallowApp(b, "com.gopro.smarty")
// Sonos https://github.com/tailscale/tailscale/issues/2548
disallowApp(b, "com.sonos.acr")
disallowApp(b, "com.sonos.acr2")
// Google Chromecast https://github.com/tailscale/tailscale/issues/3636
disallowApp(b, "com.google.android.apps.chromecast.app")
return VPNServiceBuilder(b)
}
fun notify(title: String?, message: String?) {
val builder: NotificationCompat.Builder = NotificationCompat.Builder(this, App.NOTIFY_CHANNEL_ID)
.setSmallIcon(R.drawable.ic_notification)
.setContentTitle(title)
.setContentText(message)
.setContentIntent(configIntent())
.setAutoCancel(true)
.setOnlyAlertOnce(true)
.setPriority(NotificationCompat.PRIORITY_DEFAULT)
val nm: NotificationManagerCompat = NotificationManagerCompat.from(this)
nm.notify(App.NOTIFY_NOTIFICATION_ID, builder.build())
}
fun updateStatusNotification(title: String?, message: String?) {
val builder: NotificationCompat.Builder = NotificationCompat.Builder(this, App.STATUS_CHANNEL_ID)
.setSmallIcon(R.drawable.ic_notification)
.setContentTitle(title)
.setContentText(message)
.setContentIntent(configIntent())
.setPriority(NotificationCompat.PRIORITY_LOW)
startForeground(App.STATUS_NOTIFICATION_ID, builder.build())
}
companion object {
const val ACTION_REQUEST_VPN = "com.tailscale.ipn.REQUEST_VPN"
const val ACTION_STOP_VPN = "com.tailscale.ipn.STOP_VPN"
}
}