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Commit d4d297ab authored by Geoffrey Métais's avatar Geoffrey Métais Committed by Geoffrey Métais
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Create NetworkMonitor in tools

Make it VLC independant to be used un modules
parent 253e9a43
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package org.videolan.tools
import android.annotation.SuppressLint
import android.annotation.TargetApi
import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.content.IntentFilter
import android.net.ConnectivityManager
import android.net.NetworkCapabilities
import android.os.Build
import androidx.lifecycle.*
import kotlinx.coroutines.CoroutineStart
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.launch
import java.lang.ref.WeakReference
import java.net.NetworkInterface
import java.net.SocketException
interface NetworkObserver {
fun onNetworkChanged()
}
class NetworkMonitor(private val context: Context) : LifecycleObserver {
private var registered = false
private val cm = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
val connected = MutableLiveData<Boolean>()
@Volatile
var isMobile = true
private set
@Volatile
var isVPN = false
private set
private var networkObservers: MutableList<WeakReference<NetworkObserver>> = mutableListOf()
init {
ProcessLifecycleOwner.get().lifecycle.addObserver(this@NetworkMonitor)
}
@OnLifecycleEvent(Lifecycle.Event.ON_START)
fun start() {
if (registered) return
registered = true
val networkFilter = IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION)
context.registerReceiver(receiver, networkFilter)
}
@OnLifecycleEvent(Lifecycle.Event.ON_STOP)
fun stop() {
registered = false
context.unregisterReceiver(receiver)
}
@SuppressLint("MissingPermission")
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private fun updateVPNStatus(): Boolean {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
for (network in cm.allNetworks) {
val nc = cm.getNetworkCapabilities(network) ?: return false
if (nc.hasTransport(NetworkCapabilities.TRANSPORT_VPN)) return true
}
return false
} else {
try {
val networkInterfaces = NetworkInterface.getNetworkInterfaces()
while (networkInterfaces.hasMoreElements()) {
val networkInterface = networkInterfaces.nextElement()
val name = networkInterface.displayName
if (name.startsWith("ppp") || name.startsWith("tun") || name.startsWith("tap"))
return true
}
} catch (ignored: SocketException) {}
return false
}
}
val receiver = object : BroadcastReceiver() {
@SuppressLint("MissingPermission")
override fun onReceive(context: Context?, intent: Intent?) {
when (intent?.action) {
ConnectivityManager.CONNECTIVITY_ACTION -> {
val networkInfo = cm.activeNetworkInfo
val isConnected = networkInfo != null && networkInfo.isConnected
isMobile = isConnected && networkInfo!!.type == ConnectivityManager.TYPE_MOBILE
isVPN = isConnected && updateVPNStatus()
if (connected.value == null || isConnected != connected.value) {
connected.value = isConnected
}
networkObservers.forEach { it.get()?.onNetworkChanged() }
}
}
}
}
companion object : SingletonHolder<NetworkMonitor, Context>({ NetworkMonitor(it) })
}
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