Merge pull request #1047 from Bnyro/master

migrate preference files

app/src/main/java/com/github/libretube/MyApp.kt

@@ -3,6 +3,7 @@ package com.github.libretube
 import android.app.Application
 import android.app.NotificationChannel
 import android.app.NotificationManager
+import android.content.Context
 import android.os.Build
 import android.os.StrictMode
 import android.os.StrictMode.VmPolicy
@@ -49,6 +50,11 @@ class MyApp : Application() {
         val defaultExceptionHandler = Thread.getDefaultUncaughtExceptionHandler()
         val exceptionHandler = ExceptionHandler(defaultExceptionHandler)
         Thread.setDefaultUncaughtExceptionHandler(exceptionHandler)
+
+        /**
+         * legacy preference file migration
+         */
+        prefFileMigration()
     }
 
     /**
@@ -93,6 +99,9 @@ class MyApp : Application() {
         )
     }
 
+    /**
+     * Creates a [NotificationChannel]
+     */
     private fun createNotificationChannel(
         id: String,
         name: String,
@@ -109,4 +118,22 @@ class MyApp : Application() {
             notificationManager.createNotificationChannel(channel)
         }
     }
+
+    /**
+     * Migration from old preference files to new one
+     */
+    private fun prefFileMigration() {
+        val legacyUserPrefs = getSharedPreferences("username", Context.MODE_PRIVATE)
+        val username = legacyUserPrefs.getString("username", "")!!
+        if (username != "") {
+            PreferenceHelper.setUsername(username)
+            legacyUserPrefs.edit().putString("username", "")
+        }
+        val legacyTokenPrefs = getSharedPreferences("token", Context.MODE_PRIVATE)
+        val token = legacyUserPrefs.getString("token", "")!!
+        if (token != "") {
+            PreferenceHelper.setToken(token)
+            legacyTokenPrefs.edit().putString("token", "")
+        }
+    }
 }

app/src/main/java/com/github/libretube/preferences/PreferenceHelper.kt

@@ -15,8 +15,19 @@ object PreferenceHelper {
     private val TAG = "PreferenceHelper"
 
     private lateinit var prefContext: Context
+
+    /**
+     * for normal preferences
+     */
     private lateinit var settings: SharedPreferences
     private lateinit var editor: SharedPreferences.Editor
+
+    /**
+     * For sensitive data (like token)
+     */
+    private lateinit var authSettings: SharedPreferences
+    private lateinit var authEditor: SharedPreferences.Editor
+
     private val mapper = ObjectMapper()
 
     /**
@@ -24,8 +35,12 @@ object PreferenceHelper {
      */
     fun setContext(context: Context) {
         prefContext = context
+
         settings = getDefaultSharedPreferences(prefContext)
         editor = settings.edit()
+
+        authSettings = getAuthenticationPreferences(context)
+        authEditor = authSettings.edit()
     }
 
     fun getString(key: String?, defValue: String?): String {
@@ -45,23 +60,19 @@ object PreferenceHelper {
     }
 
     fun getToken(): String {
-        val sharedPref = prefContext.getSharedPreferences("token", Context.MODE_PRIVATE)
-        return sharedPref?.getString("token", "")!!
+        return authSettings.getString(PreferenceKeys.TOKEN, "")!!
     }
 
     fun setToken(newValue: String) {
-        val editor = prefContext.getSharedPreferences("token", Context.MODE_PRIVATE).edit()
-        editor.putString("token", newValue).apply()
+        authEditor.putString(PreferenceKeys.TOKEN, newValue).apply()
     }
 
     fun getUsername(): String {
-        val sharedPref = prefContext.getSharedPreferences("username", Context.MODE_PRIVATE)
-        return sharedPref.getString("username", "")!!
+        return authSettings.getString(PreferenceKeys.USERNAME, "")!!
     }
 
     fun setUsername(newValue: String) {
-        val editor = prefContext.getSharedPreferences("username", Context.MODE_PRIVATE).edit()
-        editor.putString("username", newValue).apply()
+        authEditor.putString(PreferenceKeys.USERNAME, newValue).apply()
     }
 
     fun saveCustomInstance(customInstance: CustomInstance) {
@@ -266,4 +277,8 @@ object PreferenceHelper {
     private fun getDefaultSharedPreferences(context: Context): SharedPreferences {
         return PreferenceManager.getDefaultSharedPreferences(context)
     }
+
+    private fun getAuthenticationPreferences(context: Context): SharedPreferences {
+        return context.getSharedPreferences(PreferenceKeys.AUTH_PREF_FILE, Context.MODE_PRIVATE)
+    }
 }

app/src/main/java/com/github/libretube/preferences/PreferenceKeys.kt

@@ -4,6 +4,13 @@ package com.github.libretube.preferences
  * keys for the shared preferences
  */
 object PreferenceKeys {
+    /**
+     * Authentication
+     */
+    const val AUTH_PREF_FILE = "auth"
+    const val TOKEN = "token"
+    const val USERNAME = "username"
+
     /**
      * General
      */