X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyCell.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacycell%2Fservices%2FRealtimeMonitoringService.kt;h=c54e290813c07abd015b1f3d0443dc7afdc45317;hp=5d9ad3a4a76f6f7d746c9dfc6148e0ebb7fe8467;hb=HEAD;hpb=e917bd2fc33983d1a3194a032b1f2a1cc3879502 diff --git a/app/src/main/java/com/stoutner/privacycell/services/RealtimeMonitoringService.kt b/app/src/main/java/com/stoutner/privacycell/services/RealtimeMonitoringService.kt index 5d9ad3a..72ace81 100644 --- a/app/src/main/java/com/stoutner/privacycell/services/RealtimeMonitoringService.kt +++ b/app/src/main/java/com/stoutner/privacycell/services/RealtimeMonitoringService.kt @@ -1,5 +1,5 @@ /* - * Copyright © 2021-2022 Soren Stoutner . + * Copyright 2021-2023 Soren Stoutner . * * This file is part of Privacy Cell . * @@ -148,47 +148,65 @@ class RealtimeMonitoringService : Service() { // Set the color. notificationBuilder.setColor(getColor(R.color.red_notification_icon)) + // Prevent swiping to dismiss the notification. This no longer works (except on the lock screen) in API >= 34. + notificationBuilder.setOngoing(true) + // Start the foreground notification. startForeground(NOTIFICATION_ID, notificationBuilder.build()) // Instantiate the protocol helper. val protocolHelper = ProtocolHelper() + // Get a handle for the telephony manager. + val telephonyManager = getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager + // Define the phone state listener. The `PhoneStateListener` can be replaced by `TelephonyCallback` once the minimum API >= 31. phoneStateListener = object : PhoneStateListener() { @Deprecated("Deprecated in Java") override fun onServiceStateChanged(serviceState: ServiceState) { // Update the voice network status. - // Get the network registration info for the voice network, which is the second of the three entries (the first appears to be Wi-Fi and the third appears to be the cell data network). - val networkRegistrationInfo = serviceState.networkRegistrationInfoList[1] - - // Get the consider 3G antiquated preference. - val consider3gAntiquated = sharedPreferences.getBoolean(getString(R.string.consider_3g_antiquated_key), false) - - // Update the voice network security status. - voiceNetworkSecurityStatus = protocolHelper.checkNetwork(networkRegistrationInfo.accessNetworkTechnology, consider3gAntiquated) - - // Populate the notification. - populateNotification() + // Check to see if realtime monitoring is enabled. Sometimes the system keeps running the service even when it is supposed to shut down. + if (sharedPreferences.getBoolean(applicationContext.getString(R.string.realtime_monitoring_key), true)) { // Realtime monitoring is enabled. + // Get the network registration info for the voice network, which is the second of the three entries (the first appears to be Wi-Fi and the third appears to be the cell data network). + val networkRegistrationInfo = serviceState.networkRegistrationInfoList[1] + + // Get the consider 3G antiquated preference. + val consider3gAntiquated = sharedPreferences.getBoolean(getString(R.string.consider_3g_antiquated_key), false) + + // Update the voice network security status. + voiceNetworkSecurityStatus = protocolHelper.checkNetwork(networkRegistrationInfo.accessNetworkTechnology, consider3gAntiquated) + + // Populate the notification. + populateNotification() + } else { // Realtime monitoring is disabled. + // Cancel the current listener if it exists. The `PhoneStateListener` can be replaced by `TelephonyCallback` once the minimum API >= 31. + telephonyManager.listen(phoneStateListener, LISTEN_NONE) + } } @Deprecated("Deprecated in Java") override fun onDisplayInfoChanged(telephonyDisplayInfo: TelephonyDisplayInfo) { // Update the data network status. - // Get the consider 3G antiquated preference. - val consider3gAntiquated = sharedPreferences.getBoolean(getString(R.string.consider_3g_antiquated_key), false) - - // Update the data network security status. - dataNetworkSecurityStatus = protocolHelper.checkNetwork(telephonyDisplayInfo.networkType, consider3gAntiquated) - - // Populate the notification. - populateNotification() + // Check to see if realtime monitoring is enabled. Sometimes the system keeps running the service even when it is supposed to shut down. + if (sharedPreferences.getBoolean(applicationContext.getString(R.string.realtime_monitoring_key), true)) { // Realtime monitoring is enabled. + // Get the consider 3G antiquated preference. + val consider3gAntiquated = sharedPreferences.getBoolean(getString(R.string.consider_3g_antiquated_key), false) + + // Update the data network security status. + dataNetworkSecurityStatus = protocolHelper.checkNetwork(telephonyDisplayInfo.networkType, consider3gAntiquated) + + // Populate the notification. + populateNotification() + } else { // Realtime monitoring is disabled. + // Cancel the current listener if it exists. The `PhoneStateListener` can be replaced by `TelephonyCallback` once the minimum API >= 31. + telephonyManager.listen(phoneStateListener, LISTEN_NONE) + } } } // Check to see if the read phone state permission has been granted. if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED) { - // Create a register realtime listener work request that fires every hour. - // This periodic request will fire shortly after being created (it fires about every hour near the beginning of the hour) and will reregister the listener if it gets garbage collected. - val registerRealtimeListenerWorkRequest = PeriodicWorkRequestBuilder(1, TimeUnit.HOURS).build() + // Create a register realtime listener work request that fires every fifteen minutes. + // This periodic request will fire shortly after being created and will reregister the listener if it gets garbage collected. + val registerRealtimeListenerWorkRequest = PeriodicWorkRequestBuilder(15, TimeUnit.MINUTES).build() // Register the realtime listener work request. WorkManager.getInstance(this).enqueueUniquePeriodicWork(getString(R.string.register_listener_work_request), ExistingPeriodicWorkPolicy.REPLACE, registerRealtimeListenerWorkRequest) @@ -217,10 +235,16 @@ class RealtimeMonitoringService : Service() { } fun populateNotification() { + // Get the list of current notifications. + val activeNotificationsArray = notificationManager.activeNotifications + + // Check to see if there is a current notification. + val noCurrentNotification = activeNotificationsArray.isEmpty() + // Populate the notification according to the security status. if ((voiceNetworkSecurityStatus == ProtocolHelper.ANTIQUATED) || (dataNetworkSecurityStatus == ProtocolHelper.ANTIQUATED)) { // This is an antiquated network. // Only update the notification if the network status has changed. - if (currentStatus != ANTIQUATED_NETWORK) { + if ((currentStatus != ANTIQUATED_NETWORK) || noCurrentNotification) { // Create an antiquated network notification builder. val antiquatedNetworkNotificationBuilder = Notification.Builder(applicationContext, ANTIQUATED_NETWORK) @@ -236,6 +260,9 @@ class RealtimeMonitoringService : Service() { // Set the color. antiquatedNetworkNotificationBuilder.setColor(getColor(R.color.red_notification_icon)) + // Prevent swiping to dismiss the notification. This no longer works (except on the lock screen) in API >= 34. + antiquatedNetworkNotificationBuilder.setOngoing(true) + // Update the notification. notificationManager.notify(NOTIFICATION_ID, antiquatedNetworkNotificationBuilder.build()) @@ -244,7 +271,7 @@ class RealtimeMonitoringService : Service() { } } else if ((voiceNetworkSecurityStatus == ProtocolHelper.INSECURE) || (dataNetworkSecurityStatus == ProtocolHelper.INSECURE)) { // This is an insecure network. // Only update the notification if the network status has changed. - if (currentStatus != INSECURE_NETWORK) { + if ((currentStatus != INSECURE_NETWORK) || noCurrentNotification) { // Create an insecure network notification builder. val insecureNetworkNotificationBuilder = Notification.Builder(applicationContext, INSECURE_NETWORK) @@ -260,6 +287,9 @@ class RealtimeMonitoringService : Service() { // Set the color. insecureNetworkNotificationBuilder.setColor(getColor(R.color.yellow_notification_icon)) + // Prevent swiping to dismiss the notification. This no longer works (except on the lock screen) in API >= 34. + insecureNetworkNotificationBuilder.setOngoing(true) + // Update the notification. notificationManager.notify(NOTIFICATION_ID, insecureNetworkNotificationBuilder.build()) @@ -268,7 +298,7 @@ class RealtimeMonitoringService : Service() { } } else { // This is a secure network. // Only update the notification if the network status has changed. - if (currentStatus != SECURE_NETWORK) { + if ((currentStatus != SECURE_NETWORK) || noCurrentNotification) { // Create a secure network notification builder. val secureNetworkNotificationBuilder = Notification.Builder(applicationContext, SECURE_NETWORK) @@ -284,6 +314,9 @@ class RealtimeMonitoringService : Service() { // Set the color. secureNetworkNotificationBuilder.setColor(getColor(R.color.blue_icon)) + // Prevent swiping to dismiss the notification. This no longer works (except on the lock screen) in API >= 34. + secureNetworkNotificationBuilder.setOngoing(true) + // Update the notification. notificationManager.notify(NOTIFICATION_ID, secureNetworkNotificationBuilder.build()) @@ -292,4 +325,4 @@ class RealtimeMonitoringService : Service() { } } } -} \ No newline at end of file +}