79 lines
2.2 KiB
Kotlin
79 lines
2.2 KiB
Kotlin
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.exceptions
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import android.content.Context
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import android.content.SharedPreferences
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/**
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* Contains functionality to manage custom domains for allow-list.
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*/
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object ExceptionDomains {
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private const val PREFERENCE_NAME = "exceptions"
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private const val KEY_DOMAINS = "exceptions_domains"
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private const val SEPARATOR = "@<;>@"
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private var exceptions: List<String>? = null
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/**
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* Loads the previously added/saved custom domains from preferences.
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*
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* @param context the application context
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* @return list of custom domains
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*/
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fun load(context: Context): List<String> {
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if (exceptions == null) {
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exceptions = (preferences(context)
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.getString(KEY_DOMAINS, "") ?: "")
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.split(SEPARATOR)
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.filter { !it.isEmpty() }
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}
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return exceptions ?: listOf()
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}
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/**
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* Saves the provided domains to preferences.
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*
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* @param context the application context
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* @param domains list of domains
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*/
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fun save(context: Context, domains: List<String>) {
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exceptions = domains
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preferences(context)
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.edit()
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.putString(KEY_DOMAINS, domains.joinToString(separator = SEPARATOR))
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.apply()
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}
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/**
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* Adds the provided domain to preferences.
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*
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* @param context the application context
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* @param domain the domain to add
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*/
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fun add(context: Context, domain: String) {
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val domains = mutableListOf<String>()
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domains.addAll(load(context))
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domains.add(domain)
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save(context, domains)
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}
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/**
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* Removes the provided domain from preferences.
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*
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* @param context the application context
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* @param domains the domain to remove
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*/
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fun remove(context: Context, domains: List<String>) {
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save(context, load(context) - domains)
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}
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private fun preferences(context: Context): SharedPreferences =
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context.getSharedPreferences(PREFERENCE_NAME, Context.MODE_PRIVATE)
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}
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