android: exit node banner ui improvements (#408)
-show if device is running as an exit node -show exit node connection status Updates tailscale/corp#19122 Follow up will include: -make exit node picker recompose when exit node connection status changes -prevent user from running as exit node if it is using an exit node and vice versa instead of silently failing -add explanation box for MDM offline state Signed-off-by: kari-ts <kari@tailscale.com>pull/412/head
kari-ts
1 month ago
committed by
GitHub
parent
72f35cd318
commit
a05829b3c0
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// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package com.tailscale.ipn.ui.util
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import com.tailscale.ipn.ui.model.Ipn
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class AdvertisedRoutesHelper {
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companion object {
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fun exitNodeOnFromPrefs(prefs: Ipn.Prefs): Boolean {
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var v4 = false
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var v6 = false
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prefs.AdvertiseRoutes?.forEach {
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if (it == "0.0.0.0/0") {
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v4 = true
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}
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if (it == "::/0") {
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v6 = true
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}
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}
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return v4 && v6
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}
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}
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}
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// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package com.tailscale.ipn.ui.viewModel
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import android.util.Log
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import androidx.lifecycle.ViewModel
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import androidx.lifecycle.ViewModelProvider
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import androidx.lifecycle.viewModelScope
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import com.tailscale.ipn.ui.localapi.Client
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import com.tailscale.ipn.ui.model.Ipn
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import com.tailscale.ipn.ui.notifier.Notifier
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import com.tailscale.ipn.ui.util.LoadingIndicator
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import com.tailscale.ipn.ui.util.set
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import kotlinx.coroutines.flow.MutableStateFlow
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import kotlinx.coroutines.flow.StateFlow
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import kotlinx.coroutines.flow.stateIn
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import kotlinx.coroutines.launch
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class RunExitNodeViewModelFactory() : ViewModelProvider.Factory {
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override fun <T : ViewModel> create(modelClass: Class<T>): T {
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return RunExitNodeViewModel() as T
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}
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}
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class AdvertisedRoutesHelper() {
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companion object {
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fun exitNodeOnFromPrefs(prefs: Ipn.Prefs): Boolean {
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var v4 = false
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var v6 = false
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prefs.AdvertiseRoutes?.forEach {
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if (it == "0.0.0.0/0") {
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v4 = true
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}
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if (it == "::/0") {
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v6 = true
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}
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}
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return v4 && v6
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}
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}
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}
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class RunExitNodeViewModel() : IpnViewModel() {
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val isRunningExitNode: StateFlow<Boolean> = MutableStateFlow(false)
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var lastPrefs: Ipn.Prefs? = null
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init {
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viewModelScope.launch {
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Notifier.prefs.stateIn(viewModelScope).collect { prefs ->
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Log.d("RunExitNode", "prefs: AdvertiseRoutes=" + prefs?.AdvertiseRoutes.toString())
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prefs?.let {
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lastPrefs = it
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isRunningExitNode.set(AdvertisedRoutesHelper.exitNodeOnFromPrefs(it))
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} ?: run { isRunningExitNode.set(false) }
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}
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}
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}
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fun setRunningExitNode(isOn: Boolean) {
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LoadingIndicator.start()
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lastPrefs?.let { currentPrefs ->
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val newPrefs: Ipn.MaskedPrefs
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if (isOn) {
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newPrefs = setZeroRoutes(currentPrefs)
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} else {
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newPrefs = removeAllZeroRoutes(currentPrefs)
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}
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Client(viewModelScope).editPrefs(newPrefs) { result ->
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LoadingIndicator.stop()
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Log.d("RunExitNodeViewModel", "Edited prefs: $result")
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}
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}
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}
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private fun setZeroRoutes(prefs: Ipn.Prefs): Ipn.MaskedPrefs {
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val newRoutes = (removeAllZeroRoutes(prefs).AdvertiseRoutes ?: emptyList()).toMutableList()
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newRoutes.add("0.0.0.0/0")
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newRoutes.add("::/0")
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val newPrefs = Ipn.MaskedPrefs()
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newPrefs.AdvertiseRoutes = newRoutes
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return newPrefs
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}
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private fun removeAllZeroRoutes(prefs: Ipn.Prefs): Ipn.MaskedPrefs {
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val newRoutes = emptyList<String>().toMutableList()
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(prefs.AdvertiseRoutes ?: emptyList()).forEach {
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if (it != "0.0.0.0/0" && it != "::/0") {
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newRoutes.add(it)
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}
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}
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val newPrefs = Ipn.MaskedPrefs()
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newPrefs.AdvertiseRoutes = newRoutes
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return newPrefs
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}
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}
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