Merge branch 'feature/ipscrambling' into 'master'

Feature/ipscrambling

See merge request e/privacy-central/privacycentralapp!7

17 files changed, 632 insertions, 60 deletions

diff --git a/app/build.gradle b/app/build.gradle
index 8d94e2b..0940721 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -95,6 +95,9 @@ dependencies {
     googleImplementation project(":privacymodulesgoogle")
     // include the e specific version of the modules, just for the e flavor
     eImplementation project(":privacymodulese")
+
+    implementation 'foundation.e:privacymodule.tor:0.1.0'
+
     implementation project(":flow-mvi")
     implementation Libs.Kotlin.stdlib
     implementation Libs.AndroidX.coreKtx
diff --git a/app/src/main/java/foundation/e/privacycentralapp/DependencyContainer.kt b/app/src/main/java/foundation/e/privacycentralapp/DependencyContainer.kt
index fcc2eaa..1ab848c 100644
--- a/app/src/main/java/foundation/e/privacycentralapp/DependencyContainer.kt
+++ b/app/src/main/java/foundation/e/privacycentralapp/DependencyContainer.kt
@@ -20,8 +20,11 @@ package foundation.e.privacycentralapp
 import android.app.Application
 import android.content.Context
 import android.os.Process
+import foundation.e.privacycentralapp.features.internetprivacy.InternetPrivacyViewModelFactory
 import foundation.e.privacycentralapp.features.location.FakeLocationViewModelFactory
 import foundation.e.privacycentralapp.features.location.LocationApiDelegate
+import foundation.e.privacymodules.ipscrambler.IpScramblerModule
+import foundation.e.privacymodules.ipscramblermodule.IIpScramblerModule
 import foundation.e.privacymodules.location.FakeLocation
 import foundation.e.privacymodules.location.IFakeLocation
 import foundation.e.privacymodules.permissions.PermissionsPrivacyModule
@@ -39,6 +42,7 @@ class DependencyContainer constructor(val app: Application) {
 
     private val fakeLocationModule: IFakeLocation by lazy { FakeLocation(app.applicationContext) }
     private val permissionsModule by lazy { PermissionsPrivacyModule(app.applicationContext) }
+    private val ipScramblerModule: IIpScramblerModule by lazy { IpScramblerModule(app.applicationContext) }
 
     private val appDesc by lazy {
         ApplicationDescription(
@@ -58,4 +62,8 @@ class DependencyContainer constructor(val app: Application) {
     }
 
     val blockerService = BlockerInterface.getInstance(context)
+
+    val internetPrivacyViewModelFactory by lazy {
+        InternetPrivacyViewModelFactory(ipScramblerModule, permissionsModule)
+    }
 }
diff --git a/app/src/main/java/foundation/e/privacycentralapp/common/ToggleAppsAdapter.kt b/app/src/main/java/foundation/e/privacycentralapp/common/ToggleAppsAdapter.kt
new file mode 100644
index 0000000..4f9a6fc
--- /dev/null
+++ b/app/src/main/java/foundation/e/privacycentralapp/common/ToggleAppsAdapter.kt
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2021 E FOUNDATION
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package foundation.e.privacycentralapp.common
+
+import android.annotation.SuppressLint
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.Switch
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import foundation.e.privacycentralapp.R
+import foundation.e.privacymodules.permissions.data.ApplicationDescription
+
+open class ToggleAppsAdapter(
+    private val listener: (String, Boolean) -> Unit
+) :
+    RecyclerView.Adapter<ToggleAppsAdapter.PermissionViewHolder>() {
+
+    class PermissionViewHolder(view: View) : RecyclerView.ViewHolder(view) {
+        val appName: TextView = view.findViewById(R.id.app_title)
+
+        @SuppressLint("UseSwitchCompatOrMaterialCode")
+        val togglePermission: Switch = view.findViewById(R.id.toggle)
+
+        fun bind(item: Pair<ApplicationDescription, Boolean>) {
+            appName.text = item.first.label
+            togglePermission.isChecked = item.second
+
+            itemView.findViewById<ImageView>(R.id.app_icon).setImageDrawable(item.first.icon)
+        }
+    }
+
+    var dataSet: List<Pair<ApplicationDescription, Boolean>> = emptyList()
+        set(value) {
+            field = value
+            notifyDataSetChanged()
+        }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): PermissionViewHolder {
+        val view = LayoutInflater.from(parent.context)
+            .inflate(R.layout.item_app_toggle, parent, false)
+        val holder = PermissionViewHolder(view)
+        holder.togglePermission.setOnCheckedChangeListener { _, isChecked ->
+            listener(dataSet[holder.adapterPosition].first.packageName, isChecked)
+        }
+        view.findViewById<Switch>(R.id.toggle)
+        return holder
+    }
+
+    override fun onBindViewHolder(holder: PermissionViewHolder, position: Int) {
+        val permission = dataSet[position]
+        holder.bind(permission)
+    }
+
+    override fun getItemCount(): Int = dataSet.size
+}
diff --git a/app/src/main/java/foundation/e/privacycentralapp/features/internetprivacy/InternetPrivacyFeature.kt b/app/src/main/java/foundation/e/privacycentralapp/features/internetprivacy/InternetPrivacyFeature.kt
index b34024e..41ce9ad 100644
--- a/app/src/main/java/foundation/e/privacycentralapp/features/internetprivacy/InternetPrivacyFeature.kt
+++ b/app/src/main/java/foundation/e/privacycentralapp/features/internetprivacy/InternetPrivacyFeature.kt
@@ -17,16 +17,25 @@
 
 package foundation.e.privacycentralapp.features.internetprivacy
 
+import android.Manifest
+import android.app.Activity
+import android.content.Intent
 import android.util.Log
 import foundation.e.flowmvi.Actor
 import foundation.e.flowmvi.Reducer
 import foundation.e.flowmvi.SingleEventProducer
 import foundation.e.flowmvi.feature.BaseFeature
-import foundation.e.privacycentralapp.dummy.DummyDataSource
-import foundation.e.privacycentralapp.dummy.InternetPrivacyMode
+import foundation.e.privacymodules.ipscramblermodule.IIpScramblerModule
+import foundation.e.privacymodules.permissions.PermissionsPrivacyModule
+import foundation.e.privacymodules.permissions.data.ApplicationDescription
 import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.callbackFlow
 import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.flow.flowOf
+import kotlinx.coroutines.flow.flowOn
+import kotlinx.coroutines.flow.merge
 
 // Define a state machine for Internet privacy feature
 class InternetPrivacyFeature(
@@ -43,11 +52,34 @@ class InternetPrivacyFeature(
     { message -> Log.d("InternetPrivacyFeature", message) },
     singleEventProducer
 ) {
-    data class State(val mode: InternetPrivacyMode)
+    data class State(
+        val mode: IIpScramblerModule.Status,
+        val availableApps: List<ApplicationDescription>,
+        val ipScrambledApps: Collection<String>,
+        val selectedLocation: String,
+        val availableLocationIds: List<String>
+    ) {
+
+        val isAllAppsScrambled get() = ipScrambledApps.isEmpty()
+        fun getScrambledApps(): List<Pair<ApplicationDescription, Boolean>> {
+            return availableApps
+                .filter { it.packageName in ipScrambledApps }
+                .map { it to true }
+        }
+
+        fun getApps(): List<Pair<ApplicationDescription, Boolean>> {
+            return availableApps
+                .filter { it.packageName !in ipScrambledApps }
+                .map { it to false }
+        }
+
+        val selectedLocationPosition get() = availableLocationIds.indexOf(selectedLocation)
+    }
 
     sealed class SingleEvent {
         object RealIPSelectedEvent : SingleEvent()
         object HiddenIPSelectedEvent : SingleEvent()
+        data class StartAndroidVpnActivityEvent(val intent: Intent) : SingleEvent()
         data class ErrorEvent(val error: String) : SingleEvent()
     }
 
@@ -55,53 +87,171 @@ class InternetPrivacyFeature(
         object LoadInternetModeAction : Action()
         object UseRealIPAction : Action()
         object UseHiddenIPAction : Action()
+        data class AndroidVpnActivityResultAction(val resultCode: Int) : Action()
+        data class ToggleAppIpScrambled(val packageName: String, val isIpScrambled: Boolean) : Action()
+        data class SelectLocationAction(val position: Int) : Action()
     }
 
     sealed class Effect {
-        data class ModeUpdatedEffect(val mode: InternetPrivacyMode) : Effect()
+        data class ModeUpdatedEffect(val mode: IIpScramblerModule.Status) : Effect()
+        object NoEffect : Effect()
+        data class ShowAndroidVpnDisclaimerEffect(val intent: Intent) : Effect()
+        data class IpScrambledAppsUpdatedEffect(val ipScrambledApps: Collection<String>) : Effect()
+        data class AvailableAppsListEffect(val apps: List<ApplicationDescription>) : Effect()
+        data class LocationSelectedEffect(val locationId: String) : Effect()
+        data class AvailableCountriesEffect(val availableLocationsIds: List<String>) : Effect()
         data class ErrorEffect(val message: String) : Effect()
     }
 
     companion object {
         fun create(
-            initialState: State = State(InternetPrivacyMode.REAL_IP),
-            coroutineScope: CoroutineScope
+            initialState: State = State(
+                IIpScramblerModule.Status.STOPPING,
+                availableApps = emptyList(),
+                ipScrambledApps = emptyList(),
+                availableLocationIds = emptyList(),
+                selectedLocation = ""
+            ),
+            coroutineScope: CoroutineScope,
+            ipScramblerModule: IIpScramblerModule,
+            permissionsModule: PermissionsPrivacyModule
         ) = InternetPrivacyFeature(
             initialState, coroutineScope,
             reducer = { state, effect ->
                 when (effect) {
                     is Effect.ModeUpdatedEffect -> state.copy(mode = effect.mode)
-                    is Effect.ErrorEffect -> state
+                    is Effect.IpScrambledAppsUpdatedEffect -> state.copy(ipScrambledApps = effect.ipScrambledApps)
+                    is Effect.AvailableAppsListEffect -> state.copy(availableApps = effect.apps)
+                    is Effect.AvailableCountriesEffect -> state.copy(availableLocationIds = effect.availableLocationsIds)
+                    is Effect.LocationSelectedEffect -> state.copy(selectedLocation = effect.locationId)
+                    else -> state
                 }
             },
-            actor = { _, action ->
-                when (action) {
-                    Action.LoadInternetModeAction -> flowOf(Effect.ModeUpdatedEffect(DummyDataSource.internetActivityMode.value))
-                    Action.UseHiddenIPAction, Action.UseRealIPAction -> flow {
-                        val success =
-                            DummyDataSource.setInternetPrivacyMode(if (action is Action.UseHiddenIPAction) InternetPrivacyMode.HIDE_IP else InternetPrivacyMode.REAL_IP)
-                        emit(
-                            if (success) Effect.ModeUpdatedEffect(DummyDataSource.internetActivityMode.value) else Effect.ErrorEffect(
-                                "Couldn't update internet mode"
-                            )
-                        )
-                    }
-                }
-            },
-            singleEventProducer = { _, action, effect ->
-                when (action) {
-                    Action.UseRealIPAction, Action.UseHiddenIPAction -> when (effect) {
-                        is Effect.ModeUpdatedEffect -> {
-                            if (effect.mode == InternetPrivacyMode.REAL_IP) {
-                                SingleEvent.RealIPSelectedEvent
+            actor = { state, action ->
+                when {
+                    action is Action.LoadInternetModeAction -> merge(
+                        callbackFlow {
+                            val listener = object : IIpScramblerModule.Listener {
+                                override fun onStatusChanged(newStatus: IIpScramblerModule.Status) {
+                                    offer(Effect.ModeUpdatedEffect(newStatus))
+                                }
+
+                                override fun log(message: String) {}
+                                override fun onTrafficUpdate(upload: Long, download: Long, read: Long, write: Long) {}
+                            }
+                            ipScramblerModule.addListener(listener)
+                            ipScramblerModule.requestStatus()
+                            awaitClose { ipScramblerModule.removeListener(listener) }
+                        },
+                        flow {
+                            // TODO: filter deactivated apps"
+                            val apps = permissionsModule.getInstalledApplications()
+                                .filter {
+                                    permissionsModule.getPermissions(it.packageName)
+                                        .contains(Manifest.permission.INTERNET)
+                                }.map {
+                                    it.icon = permissionsModule.getApplicationIcon(it.packageName)
+                                    it
+                                }.sortedWith(object : Comparator<ApplicationDescription> {
+                                    override fun compare(
+                                        p0: ApplicationDescription?,
+                                        p1: ApplicationDescription?
+                                    ): Int {
+                                        return if (p0?.icon != null && p1?.icon != null) {
+                                            p0.label.toString().compareTo(p1.label.toString())
+                                        } else if (p0?.icon == null) {
+                                            1
+                                        } else {
+                                            -1
+                                        }
+                                    }
+                                })
+                            emit(Effect.AvailableAppsListEffect(apps))
+                        },
+                        flowOf(Effect.IpScrambledAppsUpdatedEffect(ipScramblerModule.appList)),
+                        flow {
+                            val locationIds = mutableListOf("")
+                            locationIds.addAll(ipScramblerModule.getAvailablesLocations().sorted())
+                            emit(Effect.AvailableCountriesEffect(locationIds))
+                        },
+                        flowOf(Effect.LocationSelectedEffect(ipScramblerModule.exitCountry))
+                    ).flowOn(Dispatchers.Default)
+                    action is Action.AndroidVpnActivityResultAction ->
+                        if (action.resultCode == Activity.RESULT_OK) {
+                            if (state.mode in listOf(
+                                    IIpScramblerModule.Status.OFF,
+                                    IIpScramblerModule.Status.STOPPING
+                                )
+                            ) {
+                                ipScramblerModule.start()
+                                flowOf(Effect.ModeUpdatedEffect(IIpScramblerModule.Status.STARTING))
                             } else {
-                                SingleEvent.HiddenIPSelectedEvent
+                                flowOf(Effect.ErrorEffect("Vpn already started"))
                             }
+                        } else {
+                            flowOf(Effect.ErrorEffect("Vpn wasn't allowed to start"))
                         }
-                        is Effect.ErrorEffect -> {
-                            SingleEvent.ErrorEvent(effect.message)
+
+                    action is Action.UseRealIPAction && state.mode in listOf(
+                        IIpScramblerModule.Status.ON,
+                        IIpScramblerModule.Status.STARTING,
+                        IIpScramblerModule.Status.STOPPING
+                    ) -> {
+                        ipScramblerModule.stop()
+                        flowOf(Effect.ModeUpdatedEffect(IIpScramblerModule.Status.STOPPING))
+                    }
+                    action is Action.UseHiddenIPAction
+                        && state.mode in listOf(
+                            IIpScramblerModule.Status.OFF,
+                            IIpScramblerModule.Status.STOPPING
+                        ) -> {
+                        ipScramblerModule.prepareAndroidVpn()?.let {
+                            flowOf(Effect.ShowAndroidVpnDisclaimerEffect(it))
+                        } ?: run {
+                            ipScramblerModule.start()
+                            flowOf(Effect.ModeUpdatedEffect(IIpScramblerModule.Status.STARTING))
                         }
                     }
+
+                    action is Action.ToggleAppIpScrambled -> {
+                        val ipScrambledApps = mutableSetOf<String>()
+                        ipScrambledApps.addAll(ipScramblerModule.appList)
+                        if (action.isIpScrambled) {
+                            ipScrambledApps.add(action.packageName)
+                        } else {
+                            ipScrambledApps.remove(action.packageName)
+                        }
+                        ipScramblerModule.appList = ipScrambledApps
+                        flowOf(Effect.IpScrambledAppsUpdatedEffect(ipScrambledApps = ipScrambledApps))
+                    }
+                    action is Action.SelectLocationAction -> {
+                        val locationId = state.availableLocationIds[action.position]
+                        ipScramblerModule.exitCountry = locationId
+                        flowOf(Effect.LocationSelectedEffect(locationId))
+                    }
+                    else -> flowOf(Effect.NoEffect)
+                }
+            },
+            singleEventProducer = { _, action, effect ->
+                when {
+                    effect is Effect.ErrorEffect -> SingleEvent.ErrorEvent(effect.message)
+
+                    action is Action.UseHiddenIPAction
+                        && effect is Effect.ShowAndroidVpnDisclaimerEffect ->
+                        SingleEvent.StartAndroidVpnActivityEvent(effect.intent)
+
+                    // Action.UseRealIPAction, Action.UseHiddenIPAction -> when (effect) {
+                    //     is Effect.ModeUpdatedEffect -> {
+                    //         if (effect.mode == InternetPrivacyMode.REAL_IP) {
+                    //             SingleEvent.RealIPSelectedEvent
+                    //         } else {
+                    //             SingleEvent.HiddenIPSelectedEvent
+                    //         }
+                    //     }
+                    //     is Effect.ErrorEffect -> {
+                    //         SingleEvent.ErrorEvent(effect.message)
+                    //     }
+                    // }
                     else -> null
                 }
             }
diff --git a/app/src/main/java/foundation/e/privacycentralapp/features/internetprivacy/InternetPrivacyFragment.kt b/app/src/main/java/foundation/e/privacycentralapp/features/internetprivacy/InternetPrivacyFragment.kt
index 5baae81..22e63e3 100644
--- a/