/* * This file is part of GNU Taler * (C) 2020 Taler Systems S.A. * * GNU Taler 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, or (at your option) any later version. * * GNU Taler 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 * GNU Taler; see the file COPYING. If not, see */ package net.taler.wallet import android.app.Activity import android.content.Context import android.net.ConnectivityManager import android.net.ConnectivityManager.NetworkCallback import android.net.NetworkCapabilities import android.net.NetworkRequest import android.net.wifi.WifiConfiguration import android.net.wifi.WifiManager import android.net.wifi.WifiNetworkSpecifier import android.os.Build.VERSION.SDK_INT import android.widget.Toast import android.widget.Toast.LENGTH_LONG import androidx.annotation.RequiresApi import androidx.core.content.getSystemService import com.google.zxing.integration.android.IntentIntegrator fun scanQrCode(activity: Activity) { IntentIntegrator(activity).apply { setPrompt("") setBeepEnabled(true) setOrientationLocked(false) }.initiateScan(listOf(IntentIntegrator.QR_CODE)) } fun connectToWifi(context: Context, ssid: String) { if (SDK_INT >= 29) { connectToWifi29(context, ssid) } else { connectToWifiDeprecated(context, ssid) } } @RequiresApi(29) private fun connectToWifi29(context: Context, ssid: String) { val wifiManager = context.getSystemService(WifiManager::class.java) if (wifiManager?.isWifiEnabled == false) { // we are not allowed to enable the WiFi anymore, so show at least a hint about it Toast.makeText(context, R.string.wifi_disabled_error, LENGTH_LONG).show() } val specifier = WifiNetworkSpecifier.Builder() .setSsid(ssid) .build() val request = NetworkRequest.Builder() .addTransportType(NetworkCapabilities.TRANSPORT_WIFI) .setNetworkSpecifier(specifier) .build() val connectivityManager = context.getSystemService(ConnectivityManager::class.java) connectivityManager?.requestNetwork(request, NetworkCallback()) } @Suppress("DEPRECATION") private fun connectToWifiDeprecated(context: Context, ssid: String) { context.getSystemService()?.apply { if (!isWifiEnabled) { val enabledResult = setWifiEnabled(true) while (enabledResult && !isWifiEnabled) Thread.sleep(25) } val wifiConfig = WifiConfiguration().apply { SSID = "\"$ssid\"" allowedKeyManagement.set(WifiConfiguration.KeyMgmt.NONE) } addNetwork(wifiConfig).let { netId -> if (netId == -1) { val str = context.getString(R.string.wifi_connect_error, ssid) Toast.makeText(context, str, LENGTH_LONG).show() } else { disconnect() enableNetwork(netId, true) reconnect() } } } } fun cleanExchange(exchange: String) = exchange.let { if (it.startsWith("https://")) it.substring(8) else it }.trimEnd('/')