1 files changed, 108 insertions, 0 deletions
diff --git a/trackersserviceeos/src/main/java/foundation/e/advancedprivacy/trackers/service/VpnSupervisorUseCaseEos.kt b/trackersserviceeos/src/main/java/foundation/e/advancedprivacy/trackers/service/VpnSupervisorUseCaseEos.kt
new file mode 100644
index 0000000..976a2b7
--- /dev/null
+++ b/trackersserviceeos/src/main/java/foundation/e/advancedprivacy/trackers/service/VpnSupervisorUseCaseEos.kt
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2023 MURENA SAS
+ *
+ * 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.advancedprivacy.trackers.service
+
+import foundation.e.advancedprivacy.domain.entities.ApplicationDescription
+import foundation.e.advancedprivacy.domain.entities.FeatureState
+import foundation.e.advancedprivacy.domain.entities.MainFeatures
+import foundation.e.advancedprivacy.domain.entities.MainFeatures.IpScrambling
+import foundation.e.advancedprivacy.domain.entities.MainFeatures.TrackersControl
+import foundation.e.advancedprivacy.domain.repositories.LocalStateRepository
+import foundation.e.advancedprivacy.domain.usecases.VpnSupervisorUseCase
+import foundation.e.advancedprivacy.externalinterfaces.permissions.IPermissionsPrivacyModule
+import foundation.e.advancedprivacy.ipscrambler.OrbotSupervisor
+import foundation.e.advancedprivacy.trackers.domain.externalinterfaces.TrackersSupervisor
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.drop
+import kotlinx.coroutines.flow.dropWhile
+import kotlinx.coroutines.launch
+
+class VpnSupervisorUseCaseEos(
+    private val localStateRepository: LocalStateRepository,
+    private val orbotSupervisor: OrbotSupervisor,
+    private val trackersSupervisor: TrackersSupervisor,
+    private val appDesc: ApplicationDescription,
+    private val permissionsPrivacyModule: IPermissionsPrivacyModule,
+    private val scope: CoroutineScope,
+) : VpnSupervisorUseCase {
+
+    override fun listenSettings() {
+        trackersSupervisor.start()
+
+        scope.launch(Dispatchers.IO) {
+            localStateRepository.ipScramblingSetting.collect {
+                applySettings(it)
+            }
+        }
+
+        scope.launch(Dispatchers.IO) {
+            localStateRepository.blockTrackers.drop(1).dropWhile { !it }.collect {
+                localStateRepository.emitStartVpnDisclaimer(TrackersControl())
+            }
+        }
+    }
+
+    private suspend fun applySettings(isIpScramblingEnabled: Boolean) {
+        val currentMode = localStateRepository.internetPrivacyMode.value
+        when {
+            (
+                isIpScramblingEnabled &&
+                    currentMode in setOf(FeatureState.OFF, FeatureState.STOPPING)
+                ) -> {
+                applyStartIpScrambling()
+            }
+            (
+                !isIpScramblingEnabled &&
+                    currentMode in setOf(FeatureState.ON, FeatureState.STARTING)
+                ) -> {
+                orbotSupervisor.stop()
+            }
+            else -> {}
+        }
+    }
+
+    private suspend fun applyStartIpScrambling() {
+        if (orbotSupervisor.prepareAndroidVpn() != null) {
+            permissionsPrivacyModule.setVpnPackageAuthorization(appDesc.packageName)
+            val alwaysOnVpnPackage = permissionsPrivacyModule.getAlwaysOnVpnPackage()
+            if (alwaysOnVpnPackage != null) {
+                localStateRepository.emitOtherVpnRunning(
+                    permissionsPrivacyModule.getApplicationDescription(
+                        packageName = alwaysOnVpnPackage,
+                        withIcon = false
+                    )
+                )
+                localStateRepository.setIpScramblingSetting(enabled = false)
+                return
+            }
+        }
+
+        localStateRepository.emitStartVpnDisclaimer(IpScrambling())
+        startVpnService(IpScrambling())
+    }
+
+    override fun startVpnService(feature: MainFeatures) {
+        localStateRepository.internetPrivacyMode.value = FeatureState.STARTING
+        orbotSupervisor.setDNSFilter(null)
+        orbotSupervisor.start()
+    }
+
+    override fun cancelStartVpnService(feature: MainFeatures) {
+        localStateRepository.setIpScramblingSetting(enabled = false)
+    }
+}