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/*
* Copyright © 2014-2020 The Android Password Store Authors. All Rights Reserved.
* SPDX-License-Identifier: GPL-3.0-only
*/
package com.zeapo.pwdstore
import android.content.SharedPreferences
import androidx.appcompat.app.AppCompatDelegate
import androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_AUTO_BATTERY
import androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
import androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_NO
import androidx.appcompat.app.AppCompatDelegate.MODE_NIGHT_YES
import androidx.preference.PreferenceManager
import com.github.ajalt.timberkt.Timber.DebugTree
import com.github.ajalt.timberkt.Timber.plant
import org.bouncycastle.jce.provider.BouncyCastleProvider
import java.security.Security
@Suppress("Unused")
class Application : android.app.Application(), SharedPreferences.OnSharedPreferenceChangeListener {
private var prefs: SharedPreferences? = null
override fun onCreate() {
super.onCreate()
prefs = PreferenceManager.getDefaultSharedPreferences(this)
if (BuildConfig.ENABLE_DEBUG_FEATURES || prefs?.getBoolean("enable_debug_logging", false) == true) {
plant(DebugTree())
}
prefs?.registerOnSharedPreferenceChangeListener(this)
setNightMode()
setUpBouncyCastle()
}
override fun onTerminate() {
prefs?.unregisterOnSharedPreferenceChangeListener(this)
super.onTerminate()
}
override fun onSharedPreferenceChanged(prefs: SharedPreferences, key: String) {
if (key == "app_theme") {
setNightMode()
}
}
private fun setUpBouncyCastle() {
// Replace the Android BC provider with the Java BouncyCastle provider since the former does
// not include all the required algorithms.
// TODO: Verify that we are indeed using the fast Android-native implementation whenever
// possible.
// Note: This may affect crypto operations in other parts of the application.
val bcIndex = Security.getProviders().indexOfFirst {
it.name == BouncyCastleProvider.PROVIDER_NAME
}
if (bcIndex == -1) {
// No Android BC found, install Java BC at lowest priority.
Security.addProvider(BouncyCastleProvider())
} else {
// Replace Android BC with Java BC, inserted at the same position.
Security.removeProvider(BouncyCastleProvider.PROVIDER_NAME)
Security.insertProviderAt(BouncyCastleProvider(), bcIndex + 1)
}
}
private fun setNightMode() {
AppCompatDelegate.setDefaultNightMode(when (prefs?.getString("app_theme", getString(R.string.app_theme_def))) {
"light" -> MODE_NIGHT_NO
"dark" -> MODE_NIGHT_YES
"follow_system" -> MODE_NIGHT_FOLLOW_SYSTEM
else -> MODE_NIGHT_AUTO_BATTERY
})
}
}
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