+/*
+ * Copyright 2022-2023 Soren Stoutner <soren@stoutner.com>.
+ *
+ * This file is part of Privacy Cell <https://www.stoutner.com/privacy-cell>.
+ *
+ * Privacy Cell 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.
+ *
+ * Privacy Cell 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 Privacy Cell. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.stoutner.privacycell.helpers
+
+import android.content.Context
+import android.telephony.TelephonyDisplayInfo
+import android.telephony.TelephonyManager
+
+import com.stoutner.privacycell.R
+
+class ProtocolHelper {
+ companion object {
+ // Define the public static companion object constants.
+ const val UNPOPULATED = -1
+ const val SECURE = 0
+ const val INSECURE = 1
+ const val ANTIQUATED = 2
+ }
+
+ fun checkNetwork(networkType: Int, consider3gAntiquated: Boolean): Int {
+ if ((networkType == TelephonyManager.NETWORK_TYPE_NR) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_IWLAN) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_UNKNOWN)) {
+ // The network is secure.
+ return SECURE
+ } else if (networkType == TelephonyManager.NETWORK_TYPE_LTE) {
+ // The network is insecure.
+ return INSECURE
+ } else if (!consider3gAntiquated &&
+ ((networkType == TelephonyManager.NETWORK_TYPE_1xRTT) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_EVDO_0) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_EVDO_A) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_EVDO_B) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_EHRPD) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_UMTS) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_TD_SCDMA) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_HSDPA) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_HSUPA) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_HSPA) ||
+ (networkType == TelephonyManager.NETWORK_TYPE_HSPAP))) {
+ // The network is insecure.
+ return INSECURE
+ } else {
+ // Either 3G networks are considered antiquated, or this is a 2G network.
+ // TelephonyManager.NETWORK_TYPE_GPRS
+ // TelephonyManager.NETWORK_TYPE_EDGE
+ // TelephonyManager.NETWORK_TYPE_CDMA
+ // TelephonyManager.NETWORK_TYPE_IDEN
+ // TelephonyManager.NETWORK_TYPE_GSM
+ return ANTIQUATED
+ }
+ }
+
+ fun checkAdditionalNetworkInfo(additionalNetworkInfoType: Int): Int {
+ return if ((additionalNetworkInfoType == TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_NONE) ||
+ (additionalNetworkInfoType == TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_NR_ADVANCED)) {
+ // The additional network info is secure.
+ SECURE
+ } else {
+ // The additional network info is insecure.
+ // TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_LTE_CA
+ // TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_LTE_ADVANCED_PRO
+ // TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_NR_NSA
+ // TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_NR_NSA_MMWAVE -- Can be removed once the minimum API >= 31.
+ INSECURE
+ }
+ }
+
+ fun getNetworkTypeStringArray(networkType: Int, context: Context) : Array<String> {
+ // Return the string array that corresponds to the network type. The deprecated `NETWORK_TYPE_IDEN` can be removed once the minimum API >= 34.
+ @Suppress("DEPRECATION")
+ return when(networkType) {
+ TelephonyManager.NETWORK_TYPE_UNKNOWN -> arrayOf(context.getString(R.string.unknown), "")
+ TelephonyManager.NETWORK_TYPE_GPRS -> arrayOf(context.getString(R.string.gprs), context.getString(R.string.gprs_detail))
+ TelephonyManager.NETWORK_TYPE_EDGE -> arrayOf(context.getString(R.string.edge), context.getString(R.string.edge_detail))
+ TelephonyManager.NETWORK_TYPE_UMTS -> arrayOf(context.getString(R.string.umts), context.getString(R.string.umts_detail))
+ TelephonyManager.NETWORK_TYPE_CDMA -> arrayOf(context.getString(R.string.cdma), context.getString(R.string.cdma_detail))
+ TelephonyManager.NETWORK_TYPE_EVDO_0 -> arrayOf(context.getString(R.string.evdo_0), context.getString(R.string.evdo_0_detail))
+ TelephonyManager.NETWORK_TYPE_EVDO_A -> arrayOf(context.getString(R.string.evdo_a), context.getString(R.string.evdo_a_detail))
+ TelephonyManager.NETWORK_TYPE_1xRTT -> arrayOf(context.getString(R.string.rtt), context.getString(R.string.rtt_detail))
+ TelephonyManager.NETWORK_TYPE_HSDPA -> arrayOf(context.getString(R.string.hsdpa), context.getString(R.string.hsdpa_detail))
+ TelephonyManager.NETWORK_TYPE_HSUPA -> arrayOf(context.getString(R.string.hsupa), context.getString(R.string.hsupa_detail))
+ TelephonyManager.NETWORK_TYPE_HSPA -> arrayOf(context.getString(R.string.hspa), context.getString(R.string.hspa_detail))
+ TelephonyManager.NETWORK_TYPE_IDEN -> arrayOf(context.getString(R.string.iden), context.getString(R.string.iden_detail))
+ TelephonyManager.NETWORK_TYPE_EVDO_B -> arrayOf(context.getString(R.string.evdo_b), context.getString(R.string.evdo_b_detail))
+ TelephonyManager.NETWORK_TYPE_LTE -> arrayOf(context.getString(R.string.lte), context.getString(R.string.lte_detail))
+ TelephonyManager.NETWORK_TYPE_EHRPD -> arrayOf(context.getString(R.string.ehrpd), context.getString(R.string.ehrpd_detail))
+ TelephonyManager.NETWORK_TYPE_HSPAP -> arrayOf(context.getString(R.string.hspap), context.getString(R.string.hspap_detail))
+ TelephonyManager.NETWORK_TYPE_GSM -> arrayOf(context.getString(R.string.gsm), context.getString(R.string.gsm_detail))
+ TelephonyManager.NETWORK_TYPE_TD_SCDMA -> arrayOf(context.getString(R.string.td_scdma), context.getString(R.string.td_scdma_detail))
+ TelephonyManager.NETWORK_TYPE_IWLAN -> arrayOf(context.getString(R.string.iwlan), context.getString(R.string.iwlan_detail))
+ TelephonyManager.NETWORK_TYPE_NR -> arrayOf(context.getString(R.string.nr), context.getString(R.string.nr_detail))
+ else -> arrayOf(context.getString(R.string.error), "")
+ }
+ }
+
+ fun getAdditionalNetworkInfoStringArray(overrideNetworkType: Int, context: Context) : Array<String> {
+ // Return the string array that corresponds to the override network type.
+ @Suppress("DEPRECATION") // OVERRIDE_NETWORK_TYPE_NR_NSA_MMWAVE can be removed once the minimum API >= 31.
+ return when(overrideNetworkType) {
+ TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_NONE -> arrayOf(context.getString(R.string.none), "")
+ TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_LTE_CA -> arrayOf(context.getString(R.string.lte_ca), context.getString(R.string.lte_ca_detail))
+ TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_LTE_ADVANCED_PRO -> arrayOf(context.getString(R.string.lte_advanced_pro), context.getString(R.string.lte_advanced_pro_detail))
+ TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_NR_NSA -> arrayOf(context.getString(R.string.nr_nsa), context.getString(R.string.nr_nsa_detail))
+ // OVERRIDE_NETWORK_TYPE_NR_NSA_MMWAVE can be removed once the minimum API >= 31.
+ TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_NR_NSA_MMWAVE -> arrayOf(context.getString(R.string.nr_nsa_mmwave), context.getString(R.string.nr_nsa_mmwave_detail))
+ TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_NR_ADVANCED -> arrayOf(context.getString(R.string.nr_advanced), context.getString(R.string.nr_advanced_detail))
+ else -> arrayOf(context.getString(R.string.error), "")
+ }
+ }
+}
projects / PrivacyCell.git / commitdiff
