Support VPN over any native tethering
First big refactoring of this app.
This commit is contained in:
Mygod
141
mobile/src/main/java/be/mygod/vpnhotspot/TetheringFragment.kt
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141
mobile/src/main/java/be/mygod/vpnhotspot/TetheringFragment.kt
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package be.mygod.vpnhotspot
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import android.content.Intent
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import android.content.res.Resources
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import android.databinding.BaseObservable
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import android.databinding.DataBindingUtil
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import android.os.Bundle
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import android.support.v4.app.Fragment
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import android.support.v4.content.LocalBroadcastManager
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import android.support.v7.util.SortedList
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import android.support.v7.widget.DefaultItemAnimator
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import android.support.v7.widget.LinearLayoutManager
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import android.support.v7.widget.RecyclerView
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import be.mygod.vpnhotspot.App.Companion.app
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import be.mygod.vpnhotspot.NetUtils.tetheredIfaces
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import be.mygod.vpnhotspot.databinding.FragmentTetheringBinding
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import be.mygod.vpnhotspot.databinding.ListitemInterfaceBinding
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class TetheringFragment : Fragment() {
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companion object {
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/**
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* Source: https://android.googlesource.com/platform/frameworks/base/+/61fa313/core/res/res/values/config.xml#328
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*/
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private val usbRegexes = app.resources.getStringArray(Resources.getSystem()
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.getIdentifier("config_tether_usb_regexs", "array", "android"))
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.map { it.toPattern() }
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private val wifiRegexes = app.resources.getStringArray(Resources.getSystem()
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.getIdentifier("config_tether_wifi_regexs", "array", "android"))
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.map { it.toPattern() }
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private val wimaxRegexes = app.resources.getStringArray(Resources.getSystem()
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.getIdentifier("config_tether_wimax_regexs", "array", "android"))
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.map { it.toPattern() }
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private val bluetoothRegexes = app.resources.getStringArray(Resources.getSystem()
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.getIdentifier("config_tether_bluetooth_regexs", "array", "android"))
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.map { it.toPattern() }
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}
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private abstract class BaseSorter<T> : SortedList.Callback<T>() {
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override fun onInserted(position: Int, count: Int) { }
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override fun areContentsTheSame(oldItem: T?, newItem: T?): Boolean = oldItem == newItem
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override fun onMoved(fromPosition: Int, toPosition: Int) { }
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override fun onChanged(position: Int, count: Int) { }
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override fun onRemoved(position: Int, count: Int) { }
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override fun areItemsTheSame(item1: T?, item2: T?): Boolean = item1 == item2
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override fun compare(o1: T?, o2: T?): Int =
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if (o1 == null) if (o2 == null) 0 else 1 else if (o2 == null) -1 else compareNonNull(o1, o2)
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abstract fun compareNonNull(o1: T, o2: T): Int
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}
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private open class DefaultSorter<T : Comparable<T>> : BaseSorter<T>() {
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override fun compareNonNull(o1: T, o2: T): Int = o1.compareTo(o2)
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}
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private object StringSorter : DefaultSorter<String>()
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class Data(val iface: String) : BaseObservable() {
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val icon: Int get() = when {
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usbRegexes.any { it.matcher(iface).matches() } -> R.drawable.ic_device_usb
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wifiRegexes.any { it.matcher(iface).matches() } -> R.drawable.ic_device_network_wifi
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wimaxRegexes.any { it.matcher(iface).matches() } -> R.drawable.ic_device_network_wifi
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bluetoothRegexes.any { it.matcher(iface).matches() } -> R.drawable.ic_device_bluetooth
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else -> R.drawable.ic_device_wifi_tethering
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}
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var active = TetheringService.active?.contains(iface) == true
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}
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class InterfaceViewHolder(val binding: ListitemInterfaceBinding) : RecyclerView.ViewHolder(binding.root),
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View.OnClickListener {
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init {
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itemView.setOnClickListener(this)
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}
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override fun onClick(view: View) {
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val context = itemView.context
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val data = binding.data!!
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context.startService(Intent(context, TetheringService::class.java).putExtra(if (data.active)
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TetheringService.EXTRA_REMOVE_INTERFACE else TetheringService.EXTRA_ADD_INTERFACE, data.iface))
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data.active = !data.active
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}
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}
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inner class InterfaceAdapter : RecyclerView.Adapter<InterfaceViewHolder>() {
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private val tethered = SortedList(String::class.java, StringSorter)
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fun update(data: Set<String> = VpnListener.connectivityManager.tetheredIfaces.toSet()) {
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tethered.clear()
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tethered.addAll(data)
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notifyDataSetChanged()
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}
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override fun getItemCount() = tethered.size()
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override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = InterfaceViewHolder(
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ListitemInterfaceBinding.inflate(LayoutInflater.from(parent.context), parent, false))
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override fun onBindViewHolder(holder: InterfaceViewHolder, position: Int) {
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holder.binding.data = Data(tethered[position])
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}
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}
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private val adapter = InterfaceAdapter()
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private val receiver = broadcastReceiver { _, intent ->
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when (intent.action) {
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TetheringService.ACTION_ACTIVE_INTERFACES_CHANGED -> adapter.notifyDataSetChanged()
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NetUtils.ACTION_TETHER_STATE_CHANGED ->
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adapter.update(intent.extras.getStringArrayList(NetUtils.EXTRA_ACTIVE_TETHER).toSet())
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}
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}
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private var receiverRegistered = false
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override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
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val binding = DataBindingUtil.inflate<FragmentTetheringBinding>(inflater, R.layout.fragment_tethering,
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container, false)
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binding.interfaces.layoutManager = LinearLayoutManager(context, LinearLayoutManager.VERTICAL, false)
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val animator = DefaultItemAnimator()
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animator.supportsChangeAnimations = false // prevent fading-in/out when rebinding
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binding.interfaces.itemAnimator = animator
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binding.interfaces.adapter = adapter
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return binding.root
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}
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override fun onStart() {
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super.onStart()
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if (!receiverRegistered) {
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adapter.update()
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val context = context!!
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context.registerReceiver(receiver, intentFilter(NetUtils.ACTION_TETHER_STATE_CHANGED))
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LocalBroadcastManager.getInstance(context)
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.registerReceiver(receiver, intentFilter(TetheringService.ACTION_ACTIVE_INTERFACES_CHANGED))
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receiverRegistered = true
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}
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}
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override fun onStop() {
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if (receiverRegistered) {
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val context = context!!
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context.unregisterReceiver(receiver)
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LocalBroadcastManager.getInstance(context).unregisterReceiver(receiver)
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receiverRegistered = false
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}
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super.onStop()
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}
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}
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